diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..56bf69e
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,106 @@
+---
+Language: Cpp
+
+BasedOnStyle: WebKit
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveMacros: 'true'
+AlignConsecutiveDeclarations: 'true'
+AlignEscapedNewlines: Left
+AlignTrailingComments: 'true'
+AllowAllConstructorInitializersOnNextLine: 'false'
+AllowAllParametersOfDeclarationOnNextLine: 'false'
+AllowShortCaseLabelsOnASingleLine: 'true'
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: 'false'
+AlwaysBreakTemplateDeclarations: MultiLine
+BinPackArguments: 'false'
+BinPackParameters: 'false'
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterClass: 'true'
+  AfterEnum: 'true'
+  AfterFunction: 'true'
+  AfterStruct: 'true'
+  AfterUnion: 'true'
+BreakBeforeTernaryOperators: 'true'
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
+ColumnLimit: '100'
+CommentPragmas:  '^\\.+'
+FixNamespaceComments: 'true'
+IncludeBlocks: Regroup
+IncludeCategories:
+
+  # Desired final ordering:
+  # 0. Glew must be included before any other GL header
+  # 1. Related header
+  # 2. All private headers
+  # 3/4/5. All public headers from this repository
+  # 6. UsdUfe headers
+  # 7. Pixar + USD headers
+  # 8. Autodesk + Qt headers
+  # 9. Other libraries' headers
+  # 10. C++ standard library headers
+  # 11. C system headers
+  # 12. Conditional includes
+
+  # 0. GL loaders must be included before any other GL header
+  # Negative priority puts it above the default IncludeIsMainRegex
+  - Regex:           '<pxr/imaging/(garch/glApi.h|glf/glew.h)>'
+    Priority:        -1
+
+  # 1. Related header
+  #    Handled  by the default IncludeIsMainRegex regex, and auto-assigned
+  #    Priority 0
+
+  # 2. All private headers
+  - Regex:           '^"'
+    Priority:        2
+
+  # 3. Headers from projects this repository that have dependencies on headers of 4 and/or 5
+  - Regex:           '^<(MaxUsdObjects)/'
+    Priority:        3
+
+  # 4.  Headers from projects this repository that have dependencies on headers of 4
+  - Regex:           '^<(RenderDelegate|UFEUI|USDExport|USDImport)/'
+    Priority:        4
+
+  # 5. MaxUsd Headers
+  - Regex:           '^<(MaxUsd)/'
+    Priority:        5
+
+  # 6. UsdUfe library headers
+  - Regex:           '^<usdUfe/'
+    Priority:        6
+
+  # 7. Pixar + USD headers
+  - Regex:           '^<pxr/'
+    Priority:        7
+
+  # 8. Autodesk + QT headers
+  - Regex:           '^<(maxscript|Graphics|ufe|Qt*)/'
+    Priority:        8
+
+  # 9. Other libraries' headers
+  - Regex:           '^<'
+    Priority:        9
+
+  # 10. C++ standard library headers
+  #    angle brackets, no directory, no extension
+  - Regex:           '^<[A-Za-z0-9_-]+>$'
+    Priority:        10
+
+  # 11. C system headers
+  #    angle brackets, no directory, end with ".h"
+  - Regex:           '^<[A-Za-z0-9_-]+\.h>$'
+    Priority:        11
+
+  # 12. Conditional includes
+  # Not reordered by clang-format, we need to manually make sure these come last
+
+MaxEmptyLinesToKeep: '1'
+NamespaceIndentation: None
+UseTab: Never
+
+...
diff --git a/.clang-format-ignore b/.clang-format-ignore
new file mode 100644
index 0000000..e69de29
diff --git a/.clang-format-include b/.clang-format-include
new file mode 100644
index 0000000..aad3c80
--- /dev/null
+++ b/.clang-format-include
@@ -0,0 +1,8 @@
+\.c$
+\.cc$
+\.cpp$
+\.cxx$
+\.h$
+\.hh$
+\.hpp$
+\.hxx$
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..1f1ad55
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,7 @@
+*.png filter=lfs diff=lfs merge=lfs -text
+*.max filter=lfs diff=lfs merge=lfs -text
+*.mui filter=lfs diff=lfs merge=lfs -text
+*.rc text working-tree-encoding=UTF-16LE-BOM eol=CRLF
+*.r text working-tree-encoding=UTF-16LE-BOM eol=CRLF
+*.zip filter=lfs diff=lfs merge=lfs -text
+*.usdc filter=lfs diff=lfs merge=lfs -text
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000..8d64b98
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,34 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: santosg87
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Steps to reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Attachments**
+If applicable, add screenshots, sample files, etc to help explain your problem.
+
+**Specs (if applicable):**
+ - OS & version [e.g. Windows 10]
+ - Compiler & version [e.g. MSVS VS 2029 (16.11.34)]
+ - 3ds Max version [e.g. 3ds Max 2025]
+ - 3ds USD commit SHA [e.g. dev at caa921c1]
+ - Pixar USD commit SHA [e.g. dev at b85ddac2]
+
+**Additional context**
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/build-issue-report.md b/.github/ISSUE_TEMPLATE/build-issue-report.md
new file mode 100644
index 0000000..e7438ae
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/build-issue-report.md
@@ -0,0 +1,24 @@
+---
+name: Build issue report
+about: Before opening a new build issue, please review doc/build.md
+title: ''
+labels: help wanted
+assignees: ''
+
+---
+
+**Describe the issue**
+A description of what the issue is.
+
+**Build log**
+Please attach a build_log.txt
+
+**Specs:**
+ - OS & version [e.g. Windows 10]
+ - Compiler & version [e.g. MSVS VS 2029 (16.11.34)]
+ - 3ds Max version [e.g. 3ds Max 2025]
+ - 3ds USD commit SHA [e.g. dev at caa921c1]
+ - Pixar USD commit SHA [e.g. dev at b85ddac2]
+
+**Additional context**
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 0000000..a27bf13
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you would like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you have considered**
+A clear and concise description of any alternative solutions or features you have considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
diff --git a/.github/run-clang-format.py b/.github/run-clang-format.py
new file mode 100644
index 0000000..eb43c71
--- /dev/null
+++ b/.github/run-clang-format.py
@@ -0,0 +1,234 @@
+#!/usr/bin/env python
+
+'''Run clang-format on files in this repository
+
+By default, runs on all files, but may pass specific files.
+'''
+
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+import argparse
+import inspect
+import fnmatch
+import io
+import os
+import re
+import stat
+import sys
+import platform
+import time
+
+from subprocess import check_call, check_output
+
+if sys.version_info[0] < 3:
+    # Python-2 check_output doesn't have encoding
+    def check_output(*args, **kwargs):
+        import subprocess
+        kwargs.pop('encoding')
+        return subprocess.check_output(*args, **kwargs)
+
+
+THIS_FILE = os.path.normpath(os.path.abspath(inspect.getsourcefile(lambda: None)))
+THIS_DIR = os.path.dirname(THIS_FILE)
+# THIS_DIR = REPO_ROOT/.github
+REPO_ROOT = os.path.dirname(THIS_DIR)
+
+UPDATE_INTERVAL = .2
+
+
+_last_update_len = 0
+_on_update_line = False
+
+
+def update_status(text):
+    global _last_update_len
+    global _on_update_line
+    sys.stdout.write('\r')
+    text_len = len(text)
+    extra_chars = _last_update_len - text_len
+    if extra_chars > 0:
+        text += (' ' * extra_chars)
+    sys.stdout.write(text)
+    _last_update_len = text_len
+    sys.stdout.flush()
+    _on_update_line = True
+
+
+def post_update_print(text):
+    global _on_update_line
+    if _on_update_line:
+        print()
+    print(text)
+    _on_update_line = False
+
+
+def regex_from_file(path, glob=False):
+    with io.open(path, 'r') as f:
+        patterns = f.read().splitlines()
+    # ignore comment lines
+    patterns = [x for x in patterns if x.strip() and not x.lstrip().startswith('#')]
+    if glob:
+        patterns = [fnmatch.translate(x) for x in patterns]
+    regex = '({})'.format('|'.join(patterns))
+    return re.compile(regex)
+
+if platform.system() == "Windows" and sys.version_info >= (3, 6):
+    import pathlib  # Python 3.6 is required for pathlib.Path
+    def canonicalpath(path):
+        path = os.path.abspath(os.path.realpath(os.path.normpath(os.path.normcase(path))))
+        realpath = str(pathlib.Path(path).resolve())  # To get a properly cased path ie: from r'C:\WiNdOwS\SyStEm32\DeSkToP.iNi' get r'C:\Windows\System32\desktop.ini'
+        if len(path) == len(realpath): # This is to avoid following symbolic links, there is still the possibility that they could be equal.
+            path = realpath
+        if os.path.isabs(path) and path[0].upper() != path[0]:
+            path = path[0].upper() +path[1:] # path.capitalize()
+        path = path.replace('\\', '/')
+        return path
+else:
+    def canonicalpath(path):
+        path = os.path.abspath(os.path.realpath(os.path.normpath(os.path.normcase(path))))
+        return path.replace('\\', '/')
+
+def run_clang_format(paths=(), verbose=False, commit=None):
+    """Runs clang-format in-place on repo files
+
+    Returns
+    -------
+    List[str]
+        Files altered by clang-format
+    """
+    if not paths and not commit:
+        paths = [REPO_ROOT]
+
+    if commit:
+        check_call(['git', 'checkout', commit], cwd=REPO_ROOT)
+        text = check_output(
+            ['git', 'diff-tree', '--no-commit-id', '--name-only', '-r',
+             commit], cwd=REPO_ROOT, encoding=sys.stdout.encoding)
+        commit_paths = text.splitlines()
+        paths.extend(os.path.join(REPO_ROOT, p) for p in commit_paths)
+    
+    files = set()
+    folders = set()
+
+    include_path = os.path.join(REPO_ROOT, '.clang-format-include')
+    include_regex = regex_from_file(include_path)
+
+    ignore_path = os.path.join(REPO_ROOT, '.clang-format-ignore')
+    ignore_regex = regex_from_file(ignore_path, glob=True)
+
+    # tried to parse .gitignore with regex_from_file, but it has
+    # too much special git syntax. Instead just using `git ls-files`
+    # as a filter...
+    git_files = check_output(['git', 'ls-files'], cwd=REPO_ROOT,
+        encoding=sys.stdout.encoding)
+    git_files = set(canonicalpath(x.strip()) for x in git_files.splitlines())
+
+    def print_path(p):
+        if p.startswith(REPO_ROOT):
+                p = os.path.relpath(p, REPO_ROOT)
+        return p
+
+    def passes_filter(path):
+        rel_path = os.path.relpath(path, REPO_ROOT)
+        match_path = os.path.join('.', rel_path)
+        # standardize on '/', because that's what's used in files,
+        # and output by `git ls-files`
+        match_path = match_path.replace('\\', '/')
+        if not include_regex.search(match_path):
+            return False
+        if ignore_regex.pattern != '()' and ignore_regex.search(match_path):
+            return False
+        return True
+
+    # parse the initial fed-in paths, which may be files or folders
+    for path in paths:
+        # Get the stat, so we only do one filesystem call, instead of
+        # two for os.path.isfile() + os.path.isdir()
+        try:
+            st_mode = os.stat(path).st_mode
+            if stat.S_ISDIR(st_mode):
+                folders.add(path)
+            elif stat.S_ISREG(st_mode):
+                if canonicalpath(path) in git_files:
+                    files.add(path)
+        except Exception:
+            print("Given path did not exist: {}".format(path))
+            raise
+
+    for folder in folders:
+        # we already have list of potential files in git_files...
+        # filter to ones in this folder
+        folder = canonicalpath(folder) + '/'
+        files.update(x for x in git_files if x.startswith(folder))
+
+    # We apply filters even to fed-in paths... this is to aid
+    # in use of globs on command line
+    files = sorted(x for x in files if passes_filter(x))
+
+    clang_format_executable = os.environ.get('CLANG_FORMAT_EXECUTABLE',
+                                             'clang-format')
+    if verbose:
+        print("Running clang-format on {} files...".format(len(files)))
+        last_update = time.time()
+
+    def print_path(p):
+        if p.startswith(REPO_ROOT):
+                p = os.path.relpath(p, REPO_ROOT)
+        return p
+
+    altered = []
+    for i, path in enumerate(files):
+        if verbose:
+            now = time.time()
+            if now - last_update > UPDATE_INTERVAL:
+                last_update = now
+                update_status('File {}/{} ({:.1f}%) - {}'.format(
+                            i + 1, len(files), (i + 1) / len(files) * 100,
+                            print_path(path)))
+        # Note - couldn't find a way to get clang-format to return whether
+        # or not a file was altered with '-i' - so checking ourselves
+        # Checking mtime is not foolproof, but is faster than reading file
+        # and comparing, and probably good enough
+        mtime_orig = os.path.getmtime(path)
+        check_call([clang_format_executable, '-i', path])
+        mtime_new = os.path.getmtime(path)
+        if mtime_new != mtime_orig:
+            post_update_print("File altered: {}".format(print_path(path)))
+            altered.append(path)
+    post_update_print("Done - altered {} files".format(len(altered)))
+    return altered
+
+
+def get_parser():
+    parser = argparse.ArgumentParser(
+        description=__doc__,
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+    parser.add_argument('paths', nargs='*',
+        help='Paths to run clang-format on; defaults to all files in repo')
+    parser.add_argument('-v', '--verbose', action='store_true',
+        help='Enable more output (ie, progress messages)')
+    parser.add_argument('-c', '--commit',
+        help='Git commit / revision / branch; will first check out that commit,'
+            " then query it for it's list of affected files, to use as the files"
+            ' to run clang-format on; if PATHS are also manually given, they are'
+            ' appended')
+    return parser
+
+
+def main(raw_args=None):
+    parser = get_parser()
+    args = parser.parse_args(raw_args)
+    try:
+        altered = run_clang_format(paths=args.paths, verbose=args.verbose,
+            commit=args.commit)
+    except Exception:
+        import traceback
+        traceback.print_exc()
+        return 1
+    if altered:
+        return 1
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())
diff --git a/.github/workflows/3dsmax-usd-new-issues.yml b/.github/workflows/3dsmax-usd-new-issues.yml
new file mode 100644
index 0000000..c70a5d5
--- /dev/null
+++ b/.github/workflows/3dsmax-usd-new-issues.yml
@@ -0,0 +1,15 @@
+name: Move Issues to Triage
+on:
+  issues:
+    types: [opened, reopened]
+     
+jobs:
+  move-triage-card:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: alex-page/github-project-automation-plus@v0.9.0
+      # Feb 2024: Update v0.9.0 which uses node20 (node16 is out of support).
+        with:
+          project: Issue Triage
+          column: Needs triage
+          repo-token: ${{ secrets.REPO_ACCESS_TOKEN }}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d2eb15c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,31 @@
+# Build and dependencies files:
+build/
+artifacts/
+package/
+src/packages
+# Ufe Runtime Icons, junctionned in from artifact. QT requirement.
+src/MaxUsdObjects/Icons/UfeRt
+
+# Development configuration files:
+src/.vs
+samples/.vs
+*.vcxproj.user
+
+# Generated files:
+*.pyc
+test-results/
+*.log
+resource.aps
+.env/
+.vscode/
+docs/out/
+.env*/
+.env
+src/**/GeneratedFiles/
+!src/**/GeneratedFiles/tfiles/*.ts
+.idea
+*_backup.max
+docs/html/
+SDK/
+src/Tests/Integration/SystemTestGup/
+devkit/
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0618fb5
--- /dev/null
+++ b/README.md
@@ -0,0 +1,49 @@
+![3ds Max USD](doc/images/header.png)
+# 3ds Max USD Plugin
+**3dsmax-usd** is a feature-rich plugin for 3ds Max that provides support for [OpenUSD](http://openusd.org/) as part of [AOUSD](https://aousd.org/).  While the plugin provides traditional methods for import and export, the most important and exciting capability it provides is to load USD stages directly in the viewport for interactive editing without import/export.
+
+![3ds Max USD](doc/images/3dsmax-usd.png)
+
+The USD for 3ds Max extension lets you create, edit, work in, work with and collaborate on USD data, while enabling data to move between products (ie. Maya and 3ds Max). By enabling USD data to flow in and out of 3ds Max, you can take advantage of the following key benefits of USD: supporting DCC-agnostic pipelines/workflows and enabling non-linear collaboration. While not necessarily a replacement for the core 3ds Max referencing workflows (Object XRef and Scene XRef), the USD features can be used as a modern cross-DCC referencing pipeline that can enhance, and in many use-cases, replace existing referencing setups.
+
+The plugin comes with a complete API to allow extending the default import and export process and also to manipulate USD data directly via C++ and Python.
+
+
+## Features
+- Import and Export ASCII And Binary USD formats
+- Open a USD Stage directly for editing
+- USD Explorer
+- USD Cameras
+- USD Lights
+- 3ds Max Controller Support
+- MaterialX Material
+
+# Additional Information
+- [Building](#building)
+- [Coding Standards](doc/CodingGuidelines.md)
+- [Contributing](#contributions)
+- [Developer Documentation](#developer-documentation)
+- [Security](#security)
+- [Supported Versions](#versions)
+
+
+
+
+## Building
+Everything needed to build MaxUSD is provided in the form of source and a Devkit that needs to be installed.  Unit tests are provided for all projects and can be optionally built and executed using google tests. Full details on how to build and test 3dsmax-usd can be found in the [build documentation](doc/build.md).
+
+## Contributions
+We welcome your contributions to enhance and extend the tool set.  Please visit the [contributions](doc/CONTRIBUTING.md) page for further information.
+
+## Developer Documentation
+MaxUSD comes with extensive documentation and [samples](samples/readme.md).  For more information on Maxscript exposure please reference the [online documentation](https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=MAXScript_USD_overview_html) or ask questions in the [discussion pages](https://github.com/Autodesk/3dsmax-usd/discussions).  OpenUSD has a very active [forum](https://forum.aousd.org/) for specific USD questions or discussions.
+
+## Security
+We take security serious at Autodesk and the same goes for our open source contributions.  Our guidelines are documented [here](SECURITY.md)
+
+## Versions
+3ds Max USD actively supports the following versions of 3ds Max.
+- 2022
+- 2023
+- 2024
+- 2025
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 0000000..4599a01
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,30 @@
+# Security
+
+### Reporting Security Issues
+The 3ds Max team and community take security bugs in 3dsmax-usd seriously. We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.
+
+### Reporting a Security Vulnerability to Autodesk
+This vulnerability disclosure policy applies to any vulnerabilities you are considering reporting to Autodesk.
+We recommend reading this vulnerability disclosure policy fully before you report a vulnerability and always acting in compliance with it.  
+We value those who take the time and effort to report security vulnerabilities according to this policy. However, we do not offer monetary rewards for vulnerability disclosures.  
+If you believe you have found a security vulnerability relating to the Autodesk's systems or products, please submit a vulnerability report to [Autodesk HackerOne](https://hackerone.com/autodesk) program or psirt@autodesk.com. Otherwise, submit a report an incident at [Autodesk Trust Center](https://www.autodesk.com/trust/security).  
+In your report please include details of:
+- The software package, website, IP or page where the vulnerability can be observed.
+- A brief description of the type of vulnerability, for example; "XSS vulnerability".
+- Steps to reproduce. These should be a benign, non-destructive, proof of concept. This helps to ensure that the report can be triaged quickly and accurately. It also reduces the likelihood of duplicate reports, or malicious exploitation of some vulnerabilities, such as sub-domain takeovers.
+
+The 3ds Max team will send a response indicating the next steps in handling your report. After the initial reply to your report, the security team will keep you informed of the progress towards a fix and full announcement, and may ask for additional information or guidance.
+
+### Responsible Disclosure
+We appreciate the responsible disclosure of security vulnerabilities. Please allow us a reasonable amount of time to address the issue before making it public.
+
+### Supported Versions
+Only the last released version is supported.
+
+### Learning More About Security
+To learn more about Autodesk Security, please see the [Autodesk Trust Center](https://www.autodesk.com/trust/security).
+
+### Receiving Security Information From Autodesk
+Technical security information about our products and services is distributed through several channels.
+- Autodesk distributes information to customers about security vulnerabilities via https://autodesk.com and [Autodesk Trust Center](https://www.autodesk.com/trust/security).
+- Autodesk may issue release notes and security bulletins detailing security vulnerabilities, workarounds, remediations and any indicators of compromise to aid incident response teams.
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2022/Graphics/InstanceRenderGeometry.h b/additional_includes/MaxRestrictedSdk/2022/Graphics/InstanceRenderGeometry.h
new file mode 100644
index 0000000..e7ff491
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/Graphics/InstanceRenderGeometry.h
@@ -0,0 +1,639 @@
+//
+// Copyright 2020 Autodesk, Inc.  All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which 
+// otherwise accompanies this software in either electronic or hard copy form.   
+//
+//
+
+//Link with the optimesh.lib library to use this in your plugin.
+
+#pragma once
+
+#include "Graphics/IRenderGeometry.h"
+#include "Graphics/DrawContext.h"
+#include "Materials/Mtl.h"
+#include "quat.h"
+#include "Graphics/UpdateDisplayContext.h"
+#include "Graphics/UpdateNodeContext.h"
+#include "Graphics/MaterialRequiredStreams.h"
+#include "Graphics/VertexBufferHandle.h"
+#include "Graphics/IndexBufferHandle.h"
+#include "Noncopyable.h"
+#include "Graphics/MaterialConversionHelper.h"
+#include "export.h"
+
+namespace MaxSDK { namespace Graphics {
+
+///This macro converts from a color r,g,b in bytes (range 0 to 255) to a combined DWORD used internally by 3ds Max for storing Vertex Colors.
+#define INSTANCES_R8G8B8X8_DWORD(r,g,b)((DWORD)((((WORD)((BYTE)(b)) << 8)) | (((DWORD)(BYTE)(g)) << 16) | (((DWORD)(BYTE)(r)) << 24)));
+
+///Declaration for the private implementation of this class
+class InstanceRenderGeometryImpl;
+
+/** The struct InstanceData is used to pass instance data in different methods from the InstanceRenderGeometry class.
+It is used in InstanceRenderGeometry::CreateInstanceVertexBuffer to create the instance vertex buffer. This has to be called once only unless you want to reset all instance data with something else
+Or the number of instances has changed.
+It is also used in InstanceRenderGeometry::UpdateInstanceVertexBuffer to update the instance data which was changed. This is only used when there is animation on the instance data.
+Like updating the positions at different times.
+*/
+struct InstanceData : public MaxSDK::Util::Noncopyable
+{
+	/**numInstances : is the number of instances.
+	When creating the instance buffers with InstanceRenderGeometry::CreateInstanceVertexBuffer, this parameter should be non null.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, this can be ignored as the number of instances should not have changed.
+	Please, keep in mind, that we currently have a limitation of 32768 instances.
+	If you want more instances than 32768, you will have to split the instances into several InstanceRenderGeometry.
+	*/
+	size_t				numInstances					= 0; 
+
+	/**If bTransformationsAreInWorldSpace is true, then all matrices/positions/orientation/scales used in that struct are in world space, so moving the node will not move the instances.
+	If bTransformationsAreInWorldSpace is false then all matrices/positions/orientation/scales are relative to the node's transfrom matrix, so moving the node will move all instances.
+	When creating the instance buffers with InstanceRenderGeometry::CreateInstanceVertexBuffer, this parameter should be set.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, this parameter can be ingored as this should not change during update.
+	If so, then use InstanceRenderGeometry::CreateInstanceVertexBuffer to recreate the full buffer.
+	*/
+	bool				bTransformationsAreInWorldSpace = false;
+
+	/**pMatrices is an array of Matrix3 which is the transform matrix of each instance, this parameter can be null if you use the pPositions array instead but 
+	either pMatrices or pPositions should be non null if you want the instances to be at different positions.
+	To set if these matrices are in world space or relative to the node's transform, please see bTransformationsAreInWorldSpace.
+	*/
+	Matrix3*			pMatrices						= nullptr;
+
+	/**numMatrices is the number of elements in pMatrices, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numMatrices						= 0;
+
+	/**pPositions is an array of Point3 which is the position of each instance, this parameter can be null if you use the pMatrices array instead at least one of those two pointers should be non null.
+	To set if these positions are in world space or relative to the node's transform, please see bTransformationsAreInWorldSpace.
+	Internally in the vertex buffer, this data will be converted to a Matrix3 with pos/orientation/scale combined when put in the instance vertex buffer.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, if you are not using pMatrices, but rather position/orientation/scale, 
+	always provide the 3 of them (position/orientation/scale) as any missing of those will be replaced by identity or null (for position)
+	as we are combining the 3 into a matrix. Even if only one of them is animated.
+	*/
+	Point3*				pPositions						= nullptr;
+
+	/**numPositions is the number of elements in pPositions, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numPositions					= 0;
+
+	/**pOrientationsAsPoint4 is an array of Point4 which are quaternions. This parameter can be null if the orientation of instances is not overriden, it will be an identity orientation in that case.
+	If you prefer to use the Quat class to provide orientations, please see pOrientationsAsQuat.
+	To set if these orientations are in world space or relative to the node's transform, please see bTransformationsAreInWorldSpace.
+	Internally in the vertex buffer, this data will be converted to a Matrix3 with pos/rot/scale combined when put in the instance vertex buffer.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, if you are not using pMatrices, but rather position/orientation/scale, 
+	always provide the 3 of them (position/orientation/scale) as any missing of those will be replaced by identity or null (for position)
+	as we are combining the 3 into a matrix. Even if only one of them is animated.
+	*/
+	Point4*				pOrientationsAsPoint4			= nullptr;
+
+	/**numOrientationsAsPoint4 is the number of elements in pOrientationsAsPoint4, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numOrientationsAsPoint4			= 0;
+
+
+	/**pOrientationsAsQuat is an array of Quat which are quaternions. This parameter can be null if the orientation of instances is not overriden, it will be an identity orientation in that case.
+	If you prefer to use the Point4 class to provide orientations instead of Quat, please see pOrientationsAsPoint4.
+	To set if these orientations are in world space or relative to the node's transform, please see bTransformationsAreInWorldSpace.
+	Internally in the vertex buffer, this data will be converted to a Matrix3 with pos/rot/scale combined when put in the instance vertex buffer.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, if you are not using pMatrices, but rather position/orientation/scale, 
+	always provide the 3 of them (position/orientation/scale) as any missing of those will be replaced by identity or null (for position)
+	as we are combining the 3 into a matrix. Even if only one of them is animated.
+	*/
+	Quat*				pOrientationsAsQuat				= nullptr;
+
+	/**numOrientationsAsQuat is the number of elements in pOrientationsAsQuat, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numOrientationsAsQuat			= 0;
+
+	/**pScales is an array of Point3 which is the scale of each instance. This parameter can be null if the scale of instances is not overriden, it will be an identity scale (1,1,1) used in that case.
+	To set if these scales are in world space or relative to the node's transform, please see bTransformationsAreInWorldSpace.
+	Internally in the vertex buffer, this data will be converted to a Matrix3 with pos/rot/scale combined when put in the instance vertex buffer.
+	When updating the instance buffers with InstanceRenderGeometry::UpdateInstanceVertexBuffer, if you are not using pMatrices, but rather position/orientation/scale, 
+	always provide the 3 of them (position/orientation/scale) as any missing of those will be replaced by identity or null (for position)
+	as we are combining the 3 into a matrix. Even if only one of them is animated.
+	*/
+	Point3*				pScales							= nullptr;
+
+	/**numScales is the number of elements in pScales, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numScales						= 0;
+
+	/**pViewportMaterials is an array of BaseMaterialHandle which is the material of each instance. This parameter can be null if you want to use the original material from the node.
+	If you need to convert from a 3ds Max Mtl class to a BaseMaterialHandle, please see MaxSDK::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial
+	Warning : if you need to update the materials on instances such as remove/add some materials or change which material is applied to an instance, call CreateInstanceVertexBuffer instead of
+	UpdateInstanceVertexBuffer so we recreate the instance vertex buffer from scratch as we store the instance vertex buffer data per material which involves a reordering of the vertex buffer data.
+	*/
+	BaseMaterialHandle*	pViewportMaterials				= nullptr;
+
+	/**materialStyle is used only when you set pViewportMaterials pointer. When compiling the materials, you can set which type of quality you want for the viewport shader.
+	An example is : MaterialConversionHelper::MaterialStyles::MaterialStyle_Simple is for a viewport in standard quality.
+	And MaterialConversionHelper::MaterialStyles::MaterialStyle_Realistic is for a viewport in high quality.
+	//This parameter is optional and by default is set to MaterialConversionHelper::MaterialStyles::MaterialStyle_Simple
+	*/
+	MaterialConversionHelper::MaterialStyles	materialStyle = MaterialConversionHelper::MaterialStyles::MaterialStyle_Simple;
+
+	/**numViewportMaterials is the number of elements in pViewportMaterials, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numViewportMaterials			= 0;
+
+	/**pUVWMapChannel1 is an array of Point3 which is the UVW value of each instance in map channel 1, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in map channel 1 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel1					= nullptr;
+
+	/**numUVWMapChannel1 is the number of elements in pUVWMapChannel1, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel1				= 0;
+
+	/**pUVWMapChannel2 is an array of Point3 which is the UVW value of each instance in map channel 2, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 2 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel2					= nullptr;
+
+	/**numUVWMapChannel2 is the number of elements in pUVWMapChannel2, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel2				= 0;
+
+	/**pUVWMapChannel3 is an array of Point3 which is the UVW value of each instance in map channel 3, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 3 of each instance are not overriden.
+	*/	
+	Point3*				pUVWMapChannel3					= nullptr;
+
+	/**numUVWMapChannel3 is the number of elements in pUVWMapChannel3, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel3				= 0;
+
+	/**pUVWMapChannel4 is an array of Point3 which is the UVW value of each instance in map channel 4, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 4 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel4					= nullptr;
+
+	/**numUVWMapChannel4 is the number of elements in pUVWMapChannel4, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel4				= 0;
+
+	/**pUVWMapChannel5 is an array of Point3 which is the UVW value of each instance in map channel 5, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 5 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel5					= nullptr;
+
+	/**numUVWMapChannel5 is the number of elements in pUVWMapChannel5, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel5				= 0;
+
+	/**pUVWMapChannel6 is an array of Point3 which is the UVW value of each instance in map channel 6, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 6 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel6					= nullptr;
+
+	/**numUVWMapChannel6 is the number of elements in pUVWMapChannel6, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel6				= 0;
+
+	/**pUVWMapChannel7 is an array of Point3 which is the UVW value of each instance in map channel 7, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 7 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel7					= nullptr;
+
+	/**numUVWMapChannel7 is the number of elements in pUVWMapChannel7, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel7				= 0;
+
+	/**pUVWMapChannel8 is an array of Point3 which is the UVW value of each instance in map channel 8, we override the UVWs from the whole geometry with a single UVW value per 
+	instance on that map channel.
+	This parameter can be null if the UVWs in the map channel 8 of each instance are not overriden.
+	*/
+	Point3*				pUVWMapChannel8					= nullptr;
+
+	/**numUVWMapChannel8 is the number of elements in pUVWMapChannel8, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numUVWMapChannel8				= 0;
+
+	/**pColors is an array of AColor which is the rgba color of each instance. This will result in the viewport as a flat shading color applied on each instance (no lighting effect added).  
+	AColor has r,g,b,a components usually with values from 0.0 to 1.0, though we don't do any check on this. 
+	You can set a non zero alpha value to use transparency.
+	This parameter can be null if you don't want to use a color per instance.
+	Using a non-null pColors value with a non-null pViewportMaterials or pMaxMaterials is not advised as we will use only either the material or the colors but not both.
+	*/
+	AColor*				pColors							= nullptr;
+
+	/**numColors is the number of elements in pColors, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numColors						= 0;
+
+	/**pVertexColorsAsColor is an array of Color, i.e : an rgb color with no alpha. With r,g,b usually with values from 0.0 to 1.0. There is no alpha on vertex colors.
+	We override the Vertex Colors from the whole geometry with a single Vertex Color value per instance.
+	At this time, there is a limitation : Vertex Colors override will work only on map channels which have not been overriden when you show both in the viewport.
+	This parameter can be null if the Vertex Colors of each instance are not overriden.
+	This data will be converted when written in the vertex buffer to DWORD R8G8B8X8 color as this is what 3ds Max uses internally for Vertex Colors in vertex buffers. 
+	If you prefer to use directly DWORD for Vertex Colors as it's faster, please see pVertexColorsAsDWORD.
+	*/
+	Color*				pVertexColorsAsColor					= nullptr;
+
+	/**numVertexColorsAsColor is the number of elements in pVertexColorsAsColor, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numVertexColorsAsColor					= 0;
+
+	/**pVertexColorsAsDWORD is an array of 32 bits DWORD R8G8B8X8, i.e : an rgb color with no alpha. With r,g,b usually with values from 0.0 to 1.0. There is no alpha on vertex colors.
+	We override the Vertex Colors from the whole geometry with a single Vertex Color value per instance.
+	At this time, there is a limitation : Vertex Colors override will work only on map channels which have not been overriden when you show both in the viewport.
+	This parameter can be null if the Vertex Colors of each instance are not overriden.
+	If you prefer to use Color for Vertex Colors, please see pVertexColorsAsColor. This will be slower as DWORD is the format that 3ds Max uses natively for the Vertex Color 
+	in vertex buffers so we will convert from Color to DWORD.
+	As an helper, to convert from r,g,b being bytes, with values from 0 to 255, to 32 bits DWORD R8G8B8X8, please use the macro declared above INSTANCES_R8G8B8X8_DWORD.
+	*/
+	DWORD*				pVertexColorsAsDWORD			= nullptr;
+
+	/**numVertexColorsAsDWORD is the number of elements in pVertexColorsAsDWORD, it can be less than numInstances, in that case, we will loop through the data when filling the vertex buffer.
+	*/
+	size_t				numVertexColorsAsDWORD			= 0;
+};
+
+/** InstanceRenderGeometry is an extension of IRenderGeometry dealing with instancing. 
+
+	Link with the optimesh.lib library to use this in your plugin.
+
+	You can replace any call using a IRenderGeometry by this class, so the geometry is filled the usual way (vertex buffers, stream etc.).
+	IRenderGeometry and InstanceRenderGeometry have identical methods related to the geometry except SetStreamRequirement where we fixed the typo on SetSteamRequirement.
+
+	And you can instantiate this geometry by using the methods below.
+	You can override matrices, positions, orientations, scales, material, UVs map channel (any up to 8), Vertex Colors or a color per instance.
+	The number of instances and the number of elements passed from an array to be applied on instances can be different.
+	Say, you have 100 instances. You are setting 100 positions for instances and 50 colors for instances, it's possible.
+	We will loop through the data that is lower than the number of instances, say if we have 50 colors, instance 51 
+	will use color#0, ... Looping.
+	
+	For instances to be visible, at least an array of matrices or positions must be provided to differentiate the instances positions visually.
+	
+	About materials, there are different situation where this class can be used :
+	- You want to keep the original node's material. In that case don't set the members InstanceData::numColors or InstanceData::pColors and don't set InstanceData::numViewportMaterials 
+		or InstanceData::pViewportMaterials and don't set InstanceData::numMaxMaterials or InstanceData::pMaxMaterials and we will use by default the node's material on all instances.
+	- You want the instances to use a flat color shading, use the members InstanceData::numColors and InstanceData::pColors and it will display a flat color per instance ignoring the original 
+		node's material. Transparency can be applied on this flat colors shading.
+	- You want to use a (possibly) different material per instance ignoring the node's original material, then use the members InstanceData::numViewportMaterials 
+		and InstanceData::pViewportMaterials or InstanceData::numMaxMaterials and InstanceData::pMaxMaterials.
+
+	Performance considerations in the InstanceData struct :
+	- Using InstanceData::pMatrices directly is faster than using InstanceData::pPositions/InstanceData::pOrientationsAsPoint4/InstanceData::pOrientationsAsQuat/InstanceData::pScales 
+		as we will convert them into a Matrix3 in the vertex buffer by combining the position/orientation and scale. Though the conversion is not very expansive.
+	
+	About InstanceData members pointers ownership : we never take the ownership of the arrays provided and we immediately build the instance vertex buffer from that data.
+	Except for the colors (InstanceData::pColors member) and materials where local copies of the arrays are done.
+
+	When overriding the materials per instance we do a for loop on each instance and apply the material on it before drawing it. So it's slower than using DrawInstances which we use with 
+	either the original material or the color per instance override.
+	So changing the materials per instance often in an animation is not advised in term of performance. 
+
+	an example of usage is :
+	\code
+	//From the header file :
+	class InstanceObject : public SimpleObject2, public MaxSDK::Graphics::IObjectDisplay2:
+	{
+		...
+		//From MaxSDK::Graphics::IObjectDisplay2
+		virtual bool PrepareDisplay(const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext) override;
+		virtual bool UpdatePerNodeItems(const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext, MaxSDK::Graphics::UpdateNodeContext& nodeContext, MaxSDK::Graphics::IRenderItemContainer& targetRenderItemContainer)override;
+
+		bool												mInstanceDataWasUpdated = false;
+		MaxSDK::Graphics::InstanceRenderGeometry*			mpShadedInstanceRenderGeometry   = nullptr;
+		MaxSDK::Graphics::InstanceRenderGeometry*			mpWireframeInstanceRenderGeometry= nullptr;
+		//Instance data stored
+		std::vector<Point3>                                 mInstancesPositions;
+		std::vector<Point3>                                 mInstancesScales;
+		std::vector<Point4>                                 mInstancesOrientations;
+		std::vector<AColor>                                 mInstancesColors;
+		std::vector<MaxSDK::Graphics::BaseMaterialHandle>   mInstancesMaterials;
+	};
+
+	//From the cpp file
+	bool InstanceObject::PrepareDisplay(const MaxSDK::Graphics::UpdateDisplayContext& displayContext)
+	{
+		//Update instance data so it gets animated if the time has changed
+		const TimeValue t = displayContext.GetDisplayTime();
+		if (mLastTimeInstanceDataUpdated != t){
+			Instancing::UpdateInstanceMatricesData		(mInstancesMatrixAndUVData		, t);//This updates all position/orientation/scale from the matrices using current time
+			Instancing::UpdateInstancePositionData      (mInstancesPositions			, t);//This updates all positions using current time
+			Instancing::UpdateInstanceScaleData         (mInstancesScales				, t);//This updates all scales using current time
+			Instancing::UpdateInstanceOrientationData   (mInstancesOrientations			, t);//This updates all orientations using current time
+			Instancing::UpdateInstanceColorData         (mInstancesColors				, t);//This updates all colors using current time
+			Instancing::UpdateInstanceVertexColorData   (mInstancesVertexColorsAsColor	, t);//This updates all VertexColors using current time
+		
+			mInstanceDataWasUpdated		 = true;
+			mLastTimeInstanceDataUpdated = t;
+		}
+
+		return true;
+	}
+
+	//Create the instance vertex buffer, this has to be called once per InstanceRenderGeometry
+	void InstanceObject::CreateInstanceData(InstanceRenderGeometry* pInstanceRenderGeometry)
+	{
+		DbgAssert(pInstanceRenderGeometry);
+		if (nullptr == pInstanceRenderGeometry){
+			return;
+		}
+
+		InstanceData data;
+
+		data.bTransformationsAreInWorldSpace	= false;//Are relative to the node's TM
+		data.numInstances						= mInstancesPositions.size();
+
+		data.pMatrices							= mInstancesMatrixAndUVData.mMat.data(); //Give matrices with pos/orientation/scale for each instance
+		data.numMatrices						= mInstancesMatrixAndUVData.mMat.size();
+
+		data.pUVWMapChannel1					= mInstancesMatrixAndUVData.mUV1.data();//Override map channel 1 for each instance
+		data.numUVWMapChannel1					= mInstancesMatrixAndUVData.mUV1.size();
+
+		data.pUVWMapChannel3					= mInstancesMatrixAndUVData.mUV3.data();//Override map channel 3 for each instance
+		data.numUVWMapChannel3					= mInstancesMatrixAndUVData.mUV3.size();
+	
+		data.pVertexColorsAsColor				= mInstancesVertexColorsAsColor.data();//Override VertexColors for each instance
+		data.numVertexColorsAsColor				= mInstancesVertexColorsAsColor.size();
+
+		//For creation
+		pInstanceRenderGeometry->CreateInstanceVertexBuffer(data);
+	}
+
+	//Update the instance vertex buffer, this has to be called each time the instance data is updated
+	void InstanceObject::UpdateInstanceData(InstanceRenderGeometry* pInstanceRenderGeometry)
+	{
+		DbgAssert(pInstanceRenderGeometry);
+		if (nullptr == pInstanceRenderGeometry){
+			return;
+		}
+
+		InstanceData data;
+
+		//We are ignoring data.bTransformationsAreInWorldSpace and data.numInstances which should not have changed when doing an animation
+		//if so, use InstanceRenderGeometry::CreateInstanceVertexBuffer
+
+		data.pMatrices					= mInstancesMatrixAndUVData.mMat.data();//Update position/orientation/scale from the matrices array
+		data.numMatrices				= mInstancesMatrixAndUVData.mMat.size();
+	
+		//Map channel 1 is not animated so ignored (it will be kept as it is from the InstanceRenderGeometry::CreateInstanceVertexBuffer call)
+		//No need to provide its data again
+
+		//Update map channel 3 
+		data.pUVWMapChannel3			= mInstancesMatrixAndUVData.mUV3.data();
+		data.numUVWMapChannel3			= mInstancesMatrixAndUVData.mUV3.size();
+
+		//Update VertexColors
+		data.pVertexColorsAsColor		= mInstancesVertexColorsAsColor.data();
+		
+		//For updates
+		pInstanceRenderGeometry->UpdateInstanceVertexBuffer(data);
+	}
+
+	bool InstanceObject::UpdatePerNodeItems(const UpdateDisplayContext& updateDisplayContext, UpdateNodeContext& nodeContext, IRenderItemContainer& targetRenderItemContainer)
+	{
+		const TimeValue t						= updateDisplayContext.GetDisplayTime();
+		const unsigned long requirementFlags	= updateDisplayContext.GetRequiredComponents();
+		const bool bRequireSolidMesh			= (requirementFlags & ObjectComponentSolidMesh) != 0;
+		const bool bRequireWireframe			= (requirementFlags & ObjectComponentWireframe) != 0;
+	
+		const MaterialRequiredStreams& materialRequiredStreams = updateDisplayContext.GetRequiredStreams();
+		
+		const bool bNeedToRecreateGeometryVertexBuffers = (mLastMaterialRequiredStreams != materialRequiredStreams);
+		if (bNeedToRecreateGeometryVertexBuffers){
+			mLastMaterialRequiredStreams		= materialRequiredStreams;
+		}
+
+		if (bRequireSolidMesh){
+			static const bool sbWireFrame = false;//For clarity
+
+			bool bInstanceVertexBufferWasCreated = false;
+			if((nullptr == mpShadedInstanceRenderGeometry) || bNeedToRecreateGeometryVertexBuffers){
+				mLastMaterialRequiredStreams	= materialRequiredStreams;//store this material required stream
+				mpShadedInstanceRenderGeometry	= new InstanceRenderGeometry;
+				CreateGeometry(mpShadedInstanceRenderGeometry, sbWireFrame, bForceAddingUVs, materialRequiredStreams);
+				CreateInstanceData(mpShadedInstanceRenderGeometry);
+				bInstanceVertexBufferWasCreated = true;
+			}
+
+			if (mInstanceDataWasUpdated && false == bInstanceVertexBufferWasCreated){
+				//Update instance data when there is an animation
+				UpdateInstanceData(mpShadedInstanceRenderGeometry);//Update instance vertex buffer
+			}
+
+			//Always add the render items
+			mpShadedInstanceRenderGeometry->GenerateInstances(sbWireFrame, updateDisplayContext, nodeContext, targetRenderItemContainer);
+		}
+
+		if (bRequireWireframe){
+			static const bool sbWireFrame = true;//For clarity
+		
+			bool bInstanceVertexBufferWasCreated = false;
+
+			if  ((nullptr == mpWireframeInstanceRenderGeometry) || bNeedToRecreateGeometryVertexBuffers){
+				mpWireframeInstanceRenderGeometry = new InstanceRenderGeometry;
+				CreateGeometry(mpWireframeInstanceRenderGeometry, sbWireFrame, bForceAddingUVs, materialRequiredStreams);
+				CreateInstanceData(mpWireframeInstanceRenderGeometry);
+				bInstanceVertexBufferWasCreated = true;
+			}
+
+			if (mInstanceDataWasUpdated && false == bInstanceVertexBufferWasCreated){
+				//Update instance data when there is an animation
+				UpdateInstanceData(mpWireframeInstanceRenderGeometry);//Update instance vertex buffer
+			}
+
+			//Always add the render items
+			mpWireframeInstanceRenderGeometry->GenerateInstances(sbWireFrame, updateDisplayContext, nodeContext, targetRenderItemContainer);
+		}
+    
+		return true;
+	}
+
+	\endcode
+*/
+
+class InstanceRenderGeometry : public IRenderGeometry, public MaxSDK::Util::Noncopyable
+{
+public:
+	DllExport InstanceRenderGeometry();
+	DllExport virtual ~InstanceRenderGeometry();
+
+	/** Create the vertex buffer with instances data. We don't do any local copy of the data you pass (except colors and materials), we use it directly to build the vertex buffer for instances.
+	This does a full rebuild of the instance vertex buffer. So you should call this the first time you pass instance data or when the number of instances has changed.
+	\param[in] data : a const reference on InstanceData
+	*/
+	DllExport virtual void CreateInstanceVertexBuffer(const InstanceData& data);
+
+	/** Update the instances data. We don't do any local copy of the data (except colors and materials), we use it directly to update the vertex buffer for instances.
+	Each time the data has been updated on your side, say the positions and colors of instances have been updated, then you should call this method to update the instance vertex buffer.
+	In the data parameter of this method, only what needs to be updated should be non-null pointers and non zero for the number of elements.
+	When calling that function, we update the data provided at the right place into the instance vertex buffer directly. We don't fully rebuild the vertex buffer.
+	Say you are updating only the positions but not the colors, you should do :
+	\code
+	Point3* my_updated_Point3_positions_array = initialized_somewhere_else;
+	InstanceData data;/by default the pColors and numcolors members will be 0.
+	data.pPositions   = my_updated_Point3_positions_array;
+	data.numPositions = numPositions;//numPositions is the number of elements of my_updated_Point3_positions_array
+	MyInstanceRenderGeometry.UpdateInstanceVertexBuffer(data);//This will update only the positions and leave unchanged the others data set previously in a call to CreateInstanceVertexBuffer.
+	\endcode
+	\param[in] data : a const reference on InstanceData
+	*/
+	DllExport virtual void UpdateInstanceVertexBuffer(const InstanceData& data);
+	
+	/** Get if the matrices / positions / orientations / scales on instances are in world space or relative to the node's transform matrix.
+	\return true if they are in world space, false if they are relative to the node's transform.
+	*/
+	DllExport virtual bool GetTransformationsAreInWorldSpace(void)const;
+
+	/** Generates the GeometryRenderItemHandle and adds it to the targetRenderItemContainer. 
+	This is an helper function when you are in an INode's method UpdatePerNodeItems(const UpdateDisplayContext& updateDisplayContext, UpdateNodeContext& nodeContext, IRenderItemContainer& targetRenderItemContainer)
+	//so it creates and adds the instance render items to the container.
+	\param[in] if bWireframe, is true to generate the render items for a wireframe display, false means for a solid mesh display
+	\param[in] updateDisplayContext is an UpdateDisplayContext which has to be passed from UpdatePerNodeItems
+	\param[in] nodeContext is UpdateNodeContext which has to be passed from UpdatePerNodeItems
+	\param[in] targetRenderItemContainer is an IRenderItemContainer which has to be passed from UpdatePerNodeItems
+	*/
+	DllExport virtual bool GenerateInstances(bool bWireframe, const UpdateDisplayContext& updateDisplayContext, UpdateNodeContext& nodeContext, IRenderItemContainer& targetRenderItemContainer);
+	
+	/** Get the instance vertex buffer.
+		\return the instance vertex buffer.
+	*/
+	DllExport virtual VertexBufferHandle GetInstanceVertexBuffer(void) const;
+
+	/** Get the instance stream format from vertex buffer.
+		\return the stream instance data from vertex buffer.
+	*/
+	DllExport virtual const MaterialRequiredStreams& GetInstanceStream(void) const;
+	
+	/** Get the geometry stream format from vertex buffer.
+		\return the geometry stream format from vertex buffer.
+	*/
+	DllExport virtual const MaterialRequiredStreams& GetGeometryStream(void) const;
+	
+	/** This function might be called multiple times in a frame. Inherited classes need to
+	use in the pipeline context to render the geometry. It's recommend to prepare geometry
+	data in another function, and only do rendering tasks in the Display() function.
+	Furthermore, sub-classes are not allowed to change current material parameters. So for
+	multiple material instance, you should use multiple render items to store them.
+	Note: the vertex buffers' format must match current stream requirement in pipeline context.
+	/param drawContext the context for display
+	/param start start primitive to render
+	/param count primitive count to render
+	/param lod current lod value from the adaptive degradation system
+	*/
+	DllExport virtual void Display(DrawContext& drawContext, int start, int count, int lod) override;
+
+	/** Get the type of primitives in the geometry.
+	/return the geometry's primitive type
+	*/
+	DllExport virtual PrimitiveType GetPrimitiveType() override;
+		
+	/** Sets type of primitives in the geometry.
+	/param type the geometry's primitive type
+	*/
+	DllExport virtual void SetPrimitiveType(PrimitiveType type) override;
+
+	/** Number of primitives the mesh represents.
+	/return geometry's primitive count
+	*/
+	DllExport virtual size_t GetPrimitiveCount() override;
+
+	/** Set the number of primitives in the geometry.
+		\param[in] count the number of primitives
+	*/
+	DllExport virtual void SetPrimitiveCount(size_t count);
+
+	/** Number of vertices in the mesh.
+	/return number of vertices in the mesh.
+	*/
+	DllExport virtual size_t GetVertexCount() override;
+		
+	/** Get start primitive of this geometry.
+	\return The index of the start primitive.
+	*/
+	DllExport virtual int GetStartPrimitive() const override;
+
+	/** Set the start primitive offset for drawing.
+	\param[in] offset this offset will pass to Display() function
+	*/
+	DllExport virtual void SetStartPrimitive(int offset);
+	
+	/** Get the stream requirement of this render geometry.
+	To optimize performance, it's better to create a requirement-geometry mapping. 
+	And make the render geometry read-only after created.
+	\return the stream requirement which this geometry built with.
+	*/
+	DllExport virtual MaterialRequiredStreams& GetSteamRequirement()override;
+
+	/** Set the stream requirement of this render geometry.
+		\param[in] streamFormat the stream requirement which this geometry built with.
+	*/
+	DllExport virtual void SetStreamRequirement(const MaterialRequiredStreams& streamFormat);
+
+	/** Get the vertex streams of this geometry
+	\return vertex streams of this geometry
+	*/
+	DllExport virtual VertexBufferHandleArray& GetVertexBuffers()override;
+
+	/** Get index buffer of this geometry.
+	\return index buffer of this geometry. Might be invalid if the geometry doesn't need index buffer
+	*/
+	DllExport virtual IndexBufferHandle& GetIndexBuffer()override;
+
+	/** Set index buffer of this geometry.
+		\param[in] indexBuffer index buffer of this geometry. 
+	*/
+	DllExport virtual void SetIndexBuffer(const IndexBufferHandle& indexBuffer);
+
+	/** Add a vertex buffer to this geometry.
+		\param[in] vertexBuffer : the vertex buffer to be added. 
+	*/
+	DllExport virtual void AddVertexBuffer(const VertexBufferHandle& vertexBuffer);
+
+	/** Remove the index-th geometry vertex buffer.
+		\param[in] index the index of the geometry vertex buffer to be removed
+	*/
+	DllExport virtual void RemoveVertexBuffer(size_t index);
+
+	/** Get the number of geometry vertex buffers.
+		\return	the number of geometry vertex buffers.
+	*/
+	DllExport virtual size_t GetVertexBufferCount() const;
+
+	/** Get the index-th vertex buffer from the geometry.
+		\param[in] index the index of the geoemtry vertex buffer
+		\return the index-th geometry vertex buffer.
+	*/
+	DllExport virtual VertexBufferHandle GetVertexBuffer(size_t index) const;
+
+	/** Retrieve an InterfaceID, is reserved for internal usage only.
+	*/
+	DllExport virtual BaseInterface* GetInterface(Interface_ID id);
+		
+private:
+	///Private implementation of this class.
+	InstanceRenderGeometryImpl* mpImpl;
+};
+
+/** Generate the instance render item from a tuple mesh which is an InstanceRenderGeometry class.
+	This is an extension of the method above with more overridable data for instances. The method above could only
+	override the transform matrix in world space and UV from the map channel #1.
+	The InstanceRenderGeometry class lets you override more data per instance. For more details, please 
+	see the header file maxsdk\include\Graphics\InstanceRenderGeometry.h
+
+	\param hInstanceRenderItem the instance render item handle which can replace original tuple mesh render item.
+	\param hTupleMeshHandle handle of a tuple mesh render item
+	\param pInstanceRenderGeometry : an InstanceRenderGeometry* 
+	\return true if successful created the instance render item.
+*/
+	DllExport bool GenerateInstanceRenderItem(
+	RenderItemHandle& hInstanceRenderItem,
+	const RenderItemHandle& hTupleMeshHandle,
+	const InstanceRenderGeometry* pInstanceRenderGeometry);
+}
+
+} // namespace
diff --git a/additional_includes/MaxRestrictedSdk/2022/Graphics/MaterialConversionHelper.h b/additional_includes/MaxRestrictedSdk/2022/Graphics/MaterialConversionHelper.h
new file mode 100644
index 0000000..2a9ac1c
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/Graphics/MaterialConversionHelper.h
@@ -0,0 +1,104 @@
+//
+// Copyright 2020 Autodesk, Inc.  All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which 
+// otherwise accompanies this software in either electronic or hard copy form.   
+//
+//
+
+#pragma once
+
+#include "Graphics/GraphicsExport.h"
+#include "Graphics/BaseMaterialHandle.h"
+#include "Materials/Mtl.h"
+#include "maxTypes.h"
+
+namespace MaxSDK { namespace Graphics {
+
+/** 
+* MaterialConversionHelper is an helper class to convert from a 3ds Max material (Mtl class) into a Viewport material (BaseMaterialHandle class)
+* This viewport material (say BaseMaterialHandle physMatHandle )can be assigned with RenderItemHandle::SetCustomMaterial(physMatHandle) or if you get access to an 
+* UpdateNodeContext& updateNodeContext which can be found in UpdatePerNodeItems, you can do nodeContext.GetRenderNode().SetSolidMaterial(physMatHandle);
+* 
+* Examples of usage :
+* 
+*	//Create a the Nitrous equivalent of a physical material with a bitmap texture as its base color.
+*	MSTR texturePath;
+*	if (GetSpecDir(APP_MAP_DIR, _T("Maps"), texturePath)){
+*		texturePath += TSTR(_T("/uv-grid.png")); //Use UV grid to get something
+*	}
+*	//Create a BitmapTex which holds the bitmap
+*	BitmapTex *pBitmapTex = NewDefaultBitmapTex();
+*   pBitmapTex->SetMapName(texturePath);
+*	pBitmapTex->SetMtlFlag(MTL_TEX_DISPLAY_ENABLED, TRUE);//Active its display in the viewport
+*	pBitmapTex->ActivateTexDisplay(TRUE); //activate it
+*	pBitmapTex->NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);
+*
+*	Interval valid;
+*	valid.SetInfinite();
+*	
+*	//In realistic mode, like in high quality viewport
+*	const MaterialConversionHelper::MaterialStyles matStyle = MaterialConversionHelper::MaterialStyles::MaterialStyle_Realistic;
+*
+*	//Create a physical material and get its Nitrous material equivalent
+*	BaseMaterialHandle physMatHandle ;
+*	Mtl* pPhysicalMaterial = (Mtl*)GetCOREInterface()->CreateInstance(MATERIAL_CLASS_ID, PHYSICALMATERIAL_CLASS_ID);
+*	pPhysicalMaterial->SetName(_T("PhysMat1"));
+	const int mapSlot = GetPrimaryMapSlot(pPhysicalMaterial);
+	pPhysicalMaterial->SetSubTexmap(mapSlot, pBitmapTex);
+*	pPhysicalMaterial->Update(t, valid);
+*	//debug if needed, put the created material to compact material editor slot #0
+*   GetCOREInterface()->PutMtlToMtlEditor(pPhysicalMaterial, 0);
+*	//Convert to Nitrous the physical material
+*	physMatHandle = MaxSDK::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(*pPhysicalMaterial, t, matStyle);
+*
+*	//Another example :
+*	//Create a physical material from a preset
+*	BaseMaterialHandle physicalMaterialHandleFromGoldPreset;
+*	const MSTR presetName (_T("Gold Polished")); //another example is const MSTR presetName (_T("Aluminium Matte"));
+*	MaxSDK::Graphics::MaterialConversionHelper::GetNitrousMaterialFromPhysicalMaterialPreset(physicalMaterialHandleFromGoldPreset, presetName, t, matStyle);
+*/
+namespace MaterialConversionHelper
+{
+	/**
+	The enum MaterialStyles is the quality of the desired material from the viewport, when being in high quality viewport, you should use MaterialStyle_Realistic 
+	to enableBump/Normal mapping.
+	*/
+    enum class MaterialStyles
+	{
+		MaterialStyle_Default,			///The default from the material
+		MaterialStyle_Simple,			///Simple which is what is used in standard quality viewport
+		MaterialStyle_Realistic,		///Is with normal/bump mapping
+		MaterialStyle_Flat,				///No lighting used
+		MaterialStyle_HiddenLine,		///To show hidden lines
+		MaterialStyle_MaterialDecide,	///Let the material decide
+		MaterialStyle_Count, 
+		MaterialStyleExt_FastShader = MaterialStyle_Count,	///Is the override material style with fast shader
+		MaterialStyleExt_UVChecker,		///Is the override material style with a UV checker map
+		MaterialStyleExt_RenderSetting, ///Is used internally
+	};
+
+	/** Convert a 3ds Max Mtl to a viewport BaseMaterialHandle
+	\param[in] mtl : the 3ds Max material.
+	\param[in] t : the time at which you want to conversion to happen (could be different from the current time).
+	\param[in] matStyle : the style used for the conversion. It is the quality of the desired material from the viewport, when being in high quality viewport, you should use MaterialStyle_Realistic 
+	to enableBump/Normal mapping.
+	\return a BaseMaterialHandle which can be used with RenderItemHandle::SetCustomMaterial()
+	*/
+	MaxGraphicsObjectAPI  BaseMaterialHandle ConvertMaxToNitrousMaterial(Mtl& mtl, TimeValue t, MaterialStyles matStyle);
+
+
+	/** Create a viewport BaseMaterialHandle from a Physical material preset
+	\param[out] outBaseMaterialHandle : a BaseMaterialHandle which can be used with RenderItemHandle::SetCustomMaterial()
+	\param[in] presetName : the name used in the preset, you can find the preset names from en-US\Plugcfg\PhysicalMaterialTemplates.ini 
+		** BUT ** when there is a composite name like Polished Gold" it's usually the reverse order like "Gold Polished", in the .ini, 
+		the actual name is what is after PhysicalTemplate_ActiveMaterial
+	\param[in] matStyle : the style used for the conversion. It is the quality of the desired material from the viewport, when being in high quality viewport, you should use MaterialStyle_Realistic 
+	to enableBump/Normal mapping.
+	\return true if the preset name was found and the BaseMaterialHandle correctly filled.
+	*/
+    MaxGraphicsObjectAPI bool GetNitrousMaterialFromPhysicalMaterialPreset(	BaseMaterialHandle& outBaseMaterialHandle, const MSTR& presetName, TimeValue t, MaterialConversionHelper::MaterialStyles matStyle);
+}
+
+} } // namespace
diff --git a/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultiOutputConsumer.h b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultiOutputConsumer.h
new file mode 100644
index 0000000..2cd5b93
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultiOutputConsumer.h
@@ -0,0 +1,129 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#include "../../maxsdk/include/ifnpub.h"
+#define IMULTIOUTPUT_CONSUMER_INTERFACE Interface_ID( 0x6d4a30ed, 0x61024d74 )
+
+#define IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX ( -1 )
+
+// forward declarations
+class ReferenceTarget;
+class ReferenceMaker;
+
+//! \brief An interface for objects that reference other objects that implement IMultipleOutputChannels and acquire output channel data from those objects.
+/*! \sa Class IMultipleOutputChannels, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED
+	An object can acquire output channel data from another object by requesting the IMultipleOutputChannels interface from that object, and then calling
+	GetOutputChannelValue(int index) on that interface. This interface provides read/write access to the specification of which source objects implementing 
+	IMultipleOutputChannels are being used and which output channel indices to use on those objects. 
+	This interface is used by Schematic Material Editor to help create, modify, and display objects deriving from this interface.
+*/
+
+class IMultiOutputConsumer: public FPMixinInterface
+{
+public:
+	
+	virtual int  GetNumInputs() const = 0; 
+	virtual bool SetOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) = 0;
+	virtual bool GetOutputFromInput( int input_index, ReferenceTarget*& output_rtarg, int& output_index ) const = 0;
+	virtual bool CanAssignOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) const = 0;
+	virtual MSTR GetInputName( int input_index ) const = 0;
+	virtual MSTR GetInputLocalizedName( int input_index ) const = 0;
+	
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+private:
+
+	ReferenceTarget* MXS_GetOutputRefTargetFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = 0x0; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return rtarg; 
+		}
+		return 0x0; 
+	}
+
+	int MXS_GetOutputIndexFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = 0x0; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return output_index; 
+		}
+		return IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+	}
+
+public:
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  
+		imultioutputconsumer_getnuminputs, 
+		imultioutputconsumer_setoutputtoinput, 
+		imultioutputconsumer_getoutputrtargfrominput, 
+		imultioutputconsumer_getoutputindexfrominput, 
+		imultioutputconsumer_canassignoutputtoinput, 
+		imultioutputconsumer_getinputname,
+		imultioutputconsumer_getinputlocalizedname
+	};
+
+	#pragma warning(push)
+	#pragma warning(disable:4238)
+		BEGIN_FUNCTION_MAP
+			RO_PROP_FN( imultioutputconsumer_getnuminputs,						GetNumInputs, TYPE_INT );
+			FN_3( imultioutputconsumer_setoutputtoinput,		 TYPE_bool,		SetOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputrtargfrominput,  TYPE_REFTARG,	MXS_GetOutputRefTargetFromInput,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputindexfrominput,  TYPE_INDEX,	MXS_GetOutputIndexFromInput,	TYPE_INDEX );
+			FN_3( imultioutputconsumer_canassignoutputtoinput,	 TYPE_bool,		CanAssignOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputname,			 TYPE_TSTR_BV,	GetInputName,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputlocalizedname,	 TYPE_TSTR_BV,	GetInputLocalizedName,	TYPE_INDEX );
+		END_FUNCTION_MAP
+	#pragma warning(pop)
+};
+
+
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on IMultipleOutputChannels-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+static FPInterfaceDesc imultioutput_consumer_interface(
+	IMULTIOUTPUT_CONSUMER_INTERFACE, _T("iMultiOutputConsumer"), 0, NULL, FP_MIXIN,
+
+	IMultiOutputConsumer::imultioutputconsumer_setoutputtoinput, _T("SetOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getoutputrtargfrominput, _T("GetOutputRefTargetFromInput"), 0, TYPE_REFTARG, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		
+	IMultiOutputConsumer::imultioutputconsumer_getoutputindexfrominput, _T("GetOutputIndexFromInput"), 0, TYPE_INDEX, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_canassignoutputtoinput, _T("CanAssignOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputname, _T("GetInputName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputlocalizedname, _T("GetInputLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	properties,
+
+	IMultiOutputConsumer::imultioutputconsumer_getnuminputs, FP_NO_FUNCTION, _T("numInputs"), FP_NO_REDRAW, TYPE_INT,
+
+	p_end
+);
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannels.h b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannels.h
new file mode 100644
index 0000000..668bba2
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannels.h
@@ -0,0 +1,144 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_INTERFACE Interface_ID(0x43147cc9, 0x600e29ff)
+
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+
+//! \brief This notification is sent to dependents when a IMultipleOutputChannels's output channel list changes.
+/*!  It is sent by IMultipleOutputChannels-derived objects to tell dependents when the number or ordering 
+of output channels changes, so those objects can keep pointing at the correct output channel.  
+The PartID is a pointer to a Tab of MultiOutputChannelNumberChanged structure instances (defined in 
+IMultipleOutputChannels.h) in which each element contains an old-to-new mapping. A new channel index 
+of -1 implies the channel was removed. A old channel index of -1 implies the channel was added.
+IMultipleOutputChannelsConsumerWrapper-derived objects typically consume this notification.
+NOTE: If you send this message, the 'propagate' argument of NotifyDependents must be false. 
+Otherwise, dependents of dependents think that their ref's output channel list is changing.*/
+#define REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED 				REFMSG_USER+0x13654850
+
+#define REFMSG_MULTIOUTPUT_CHANNEL_NEEDUPDATE 					REFMSG_USER+0x13654851
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannels: public FPMixinInterface
+{
+public:
+	//! \brief Returns the number of output channels the object exposes.
+	/*! The plugin implements this method to indicate the number of output channels it exposes.
+	\return The number of output channels the object exposes.
+	*/
+	virtual int GetNumIMultipleOutputChannels() const = 0;
+
+	//! \brief Returns the localized name for the specified output channel.
+	/*! The plugin implements this method to provide the localized names of the output channels it exposes. These names will be used in the UI.
+	\param[in] index - The index of the output channel.
+	\return The localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelLocalizedName( int index ) const = 0;
+
+	//! \brief Returns the non-localized name for the specified output channel.
+	/*! The plugin implements this method to provide the non-localized names of the output channels it exposes. These would typically be used in scripts to provide locale independence.
+	\param[in] index - The index of the output channel.
+	\return The non-localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelName( int index ) const = 0;
+
+	//! \brief Returns the Parameter type for the specified output channel.
+	/*! The plugin implements this method to provide the parameter type of the output channels it exposes. The type can be used for parameter validation
+	between input and output channels.
+	\param[in] index - The index of the output channel.
+	\return The parameter type of the output channel.
+	Note: the data type will correspond to one of the data types supported by the ParamBlock2 system, tabs are not supported
+	*/
+	virtual ParamType3 GetIMultipleOutputChannelType( int index) const =0;
+
+	//! \brief Data structure for REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notifications
+	/*! A REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notification sends a Tab<MultiOutputChannelNumberChanged>*, which provides old-to-new output channel indexing. 
+	An old index value of -1 means the output channel is new, a new output index of -1 means the old output channel was removed.
+	*/
+	struct MultiOutputChannelNumberChanged
+	{
+		int oldIndex;
+		int newIndex;
+	};
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getnumoutputs, getlocalizedoutputname, getoutputname };
+	// FP-published symbolic enumerations
+
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP
+		RO_PROP_FN(getnumoutputs, GetNumIMultipleOutputChannels, TYPE_INT);
+		FN_1( getlocalizedoutputname,	TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelLocalizedName,	TYPE_INDEX );
+		FN_1( getoutputname,			TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelName,	TYPE_INDEX );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+
+protected:
+	// FPS exposure stub methods
+	void ValidateIMultipleOutputChannelIndexValue(int index)  const 
+	{
+		if (index < 0 || index >= GetNumIMultipleOutputChannels())
+			throw MAXException(_M("Invalid IMultiOutput channel index"));
+	}
+private:
+	MSTR MXS_GetIMultipleOutputChannelLocalizedName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelLocalizedName(index);
+	}
+	MSTR MXS_GetIMultipleOutputChannelName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelName(index);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on IMultipleOutputChannels-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_interface(
+	IMULTIPLEOUTPUTCHANNELS_INTERFACE, _T("iMultipleOutputChannels"), 0, nullptr, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
new file mode 100644
index 0000000..1058b99
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
@@ -0,0 +1,288 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE Interface_ID(0x24280bd5, 0x22b1edca)
+
+#include "IMultipleOutputChannels.h"
+#include "../../maxsdk/include/paramtype.h"
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include "../../maxsdk/include/interval.h"
+
+// forward declarations
+class Point3;
+class Point4;
+class Color;
+class AColor;
+class Mtl;
+class Texmap;
+class PBBitmap;
+class INode;
+class ReferenceTarget;
+class IParamBlock2;
+class Matrix3;
+namespace MaxSDK
+{
+	namespace AssetManagement
+	{
+		class AssetUser;
+	}
+}
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_with_values_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannelsWithChannelValues: public IMultipleOutputChannels
+{
+public:
+	//! \brief Indicates whether a REFMSG_CHANGED notification received from the object should be propagated from dependents using just the channel output value.
+	/*! The plugin implements this method to optimize REFMSG_CHANGE propagation. An object using an output channel value from this object will receive REFMSG_CHANGE notifications for
+	all changes to this object, even if that change does not affect the contents of the value retrieved from an output channel. The REFMSG_CHANGE notification does not need to 
+	propagate from that object since its dependents are not affected by the change. If this method returns false, the object can return REF_STOP from its NotifyRefChanged if this object
+	is the target object.
+	\param[in] index - The index of the output channel.
+	\return false if a REFMSG_CHANGE notification from this object can be blocked from propagating from objects using just the specified output channel's data value.
+	*/
+	virtual bool GetIMultipleOutputChannelValueChanged( int index) const { return true; } 
+
+	//! \brief Returns the output data value for the specified output channel.
+	/*! The plugin implements this method to return the output channel's data value as an FPValue.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return The data value for the specified output channel as an FPValue.
+	*/
+	virtual FPValue GetIMultipleOutputChannelValue( int index, TimeValue t, Interval& ivalid ) const = 0;
+
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, float& v, Interval& ivalid ) const { return false; } // TYPE_FLOAT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, int& 			v, Interval& ivalid ) const { return false; } // TYPE_INT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Color&			v, Interval& ivalid ) const { return false; } // TYPE_RGBA
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point3&			v, Interval& ivalid ) const { return false; } // TYPE_POINT3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MCHAR*&	v, Interval& ivalid ) const { return false; } // TYPE_STRING
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MaxSDK::AssetManagement::AssetUser *&	v, Interval& ivalid ) const { return false; } // TYPE_FILENAME
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Mtl*& 			v, Interval& ivalid ) const { return false; } // TYPE_MTL
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Texmap*&		v, Interval& ivalid ) const { return false; } // TYPE_TEXMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, PBBitmap*&		v, Interval& ivalid ) const { return false; } // TYPE_BITMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, INode*&			v, Interval& ivalid ) const { return false; } // TYPE_INODE
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, ReferenceTarget*& v, Interval& ivalid ) const { return false; } // TYPE_REFTARG
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Matrix3&		v, Interval& ivalid ) const { return false; } // TYPE_MATRIX3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, IParamBlock2*&	v, Interval& ivalid ) const { return false; } // TYPE_PBLOCK2
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point4&			v, Interval& ivalid ) const { return false; } // TYPE_POINT4
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, AColor&			v, Interval& ivalid ) const { return false; } // TYPE_FRGBA
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getoutputtype = IMultipleOutputChannels::getoutputname+1, getoutputvalue };
+	// FP-published symbolic enumerations
+	enum
+	{
+		outputChannelType,
+	};
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP_PARENT(IMultipleOutputChannels)
+		FN_1( getoutputtype,			TYPE_ENUM,			MXS_GetIMultipleOutputChannelType,	TYPE_INDEX );
+		FN_2( getoutputvalue,			TYPE_FPVALUE_BV,	MXS_GetIMultipleOutputChannelValue,	TYPE_INDEX, TYPE_TIMEVALUE );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+
+private:
+	DWORD MXS_GetIMultipleOutputChannelType( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelType(index);
+	}
+	FPValue MXS_GetIMultipleOutputChannelValue( int index, TimeValue t )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		Interval valid;
+		return GetIMultipleOutputChannelValue(index, t, valid);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on iMultipleOutputChannelsWithValues-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for iMultipleOutputChannelsWithValues-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_with_values_interface(
+	IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE, _T("iMultipleOutputChannelsWithValues"), 0, NULL, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputtype, _T("getIMultipleOutputChannelType"), 0, TYPE_ENUM, IMultipleOutputChannelsWithChannelValues::outputChannelType, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputvalue, _T("getIMultipleOutputChannelValue"), 0, TYPE_FPVALUE_BV, FP_NO_REDRAW, 2,
+		_T("index"),		0,	TYPE_INDEX,  
+		_T("time"),			0,	TYPE_TIMEVALUE,  f_keyArgDefault, 0,
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	// symbolic enumerations
+	enums,
+	IMultipleOutputChannelsWithChannelValues::outputChannelType, 15,
+		_T("float"),		TYPE_FLOAT,
+		_T("integer"),		TYPE_INT,
+		_T("rgb"),			TYPE_RGBA,
+		_T("point3"),		TYPE_POINT3,
+		_T("string"),		TYPE_STRING,
+		_T("filename"),		TYPE_FILENAME,
+		_T("material"),		TYPE_MTL,
+		_T("texturemap"),	TYPE_TEXMAP,
+		_T("bitmap"),		TYPE_BITMAP,
+		_T("node"),			TYPE_INODE,
+		_T("maxObject"),	TYPE_REFTARG,
+		_T("matrix3"),		TYPE_MATRIX3,
+		_T("paramblock2"),	TYPE_PBLOCK2,
+		_T("point4"),		TYPE_POINT4,
+		_T("frgba"),		TYPE_FRGBA,
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2022/Qt/QmaxRollupContainer.h b/additional_includes/MaxRestrictedSdk/2022/Qt/QmaxRollupContainer.h
new file mode 100644
index 0000000..ff3667e
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2022/Qt/QmaxRollupContainer.h
@@ -0,0 +1,98 @@
+#pragma once
+
+#include "CoreExport.h"
+
+#pragma warning(push)
+#pragma warning(disable: 4127 4251 4275 4512 4800 )
+#include <QtWidgets/QScrollArea>
+#pragma warning(pop)
+
+
+namespace MaxSDK
+{
+	class QmaxRollup; 
+	class QmaxRollupContainerPrivate;
+	class CoreExport QmaxRollupContainer : public QScrollArea
+	{
+		Q_OBJECT
+	public:
+		explicit QmaxRollupContainer( QWidget *parent = nullptr );
+		
+		virtual ~QmaxRollupContainer();
+
+		void addRollup( QmaxRollup* rollup );
+		void insertRollup( QmaxRollup* rollup, int index );
+
+		int numRollups() const;
+		QmaxRollup* rollup( int index ) const;
+		QVector<QmaxRollup*> rollups() const; 
+		int indexOf( QmaxRollup* rollup ) const; 
+
+		/** \brief Resets the categories of the rollups back to the default state.
+		 * Calls sortRollups() internally.
+		 * \see sortRollups, QmaxRollup::category(), QmaxRollup::resetCategory()
+		 */
+		void resetCategories(); 
+
+		QmaxRollup* takeRollup( int index );
+		void takeRollup( QmaxRollup* rollup );
+
+		/** \brief Sorts the rollups by category. 
+		 * Sorts the rollups in based on ascending category. Rollups with the 
+		 * same category will appear in the given order. 
+		 * \see QmaxRollup.category()
+		 **/
+		void sortRollups(); 
+
+		virtual void openAllRollups();
+		virtual void closeAllRollups();
+
+		/** \brief	Adds a QAction that get used within the right-click context 
+		 *			menu of the rollup-container.
+		 *	The rollup container does not take ownership of the QAction. To 
+		 *	remove an action, call removeRightClickAction() or simply delete
+		 *	the QAction on callers side. 
+		 *	\see removeRightClickAction, QAction
+		 */
+		virtual void addRightClickAction( QAction* action );
+		
+		/** \brief	Remove a QAction that from used within the right-click 
+		*			context menu of the rollup-container.
+		*	\see addRightClickAction, QAction
+		*/
+		virtual void removeRightClickAction( QAction* action );
+
+		QSize minimumSizeHint() const override;
+        
+		bool canScroll() const;
+
+	signals:
+
+	public slots:
+
+	protected:
+		
+		explicit QmaxRollupContainer( QmaxRollupContainerPrivate* d, QWidget *parent = nullptr );
+
+		void mouseMoveEvent( QMouseEvent *event ) override;
+		void mousePressEvent( QMouseEvent *event ) override;
+		void mouseReleaseEvent( QMouseEvent *event ) override;
+		void wheelEvent( QWheelEvent *event ) override; 
+
+		void contextMenuEvent( QContextMenuEvent *event ) override;
+
+		void dragEnterEvent( QDragEnterEvent *event ) override; 
+		void dragMoveEvent( QDragMoveEvent *event ) override;
+		void dragLeaveEvent( QDragLeaveEvent *event ) override; 
+		void dropEvent( QDropEvent* event ) override; 
+
+		Q_DECLARE_PRIVATE( QmaxRollupContainer );
+
+	private:
+		QmaxRollupContainerPrivate* d_ptr;
+		Q_DISABLE_COPY( QmaxRollupContainer );
+
+		friend class QmaxRollup; 
+	};
+
+};
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultiOutputConsumer.h b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultiOutputConsumer.h
new file mode 100644
index 0000000..2cd5b93
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultiOutputConsumer.h
@@ -0,0 +1,129 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#include "../../maxsdk/include/ifnpub.h"
+#define IMULTIOUTPUT_CONSUMER_INTERFACE Interface_ID( 0x6d4a30ed, 0x61024d74 )
+
+#define IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX ( -1 )
+
+// forward declarations
+class ReferenceTarget;
+class ReferenceMaker;
+
+//! \brief An interface for objects that reference other objects that implement IMultipleOutputChannels and acquire output channel data from those objects.
+/*! \sa Class IMultipleOutputChannels, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED
+	An object can acquire output channel data from another object by requesting the IMultipleOutputChannels interface from that object, and then calling
+	GetOutputChannelValue(int index) on that interface. This interface provides read/write access to the specification of which source objects implementing 
+	IMultipleOutputChannels are being used and which output channel indices to use on those objects. 
+	This interface is used by Schematic Material Editor to help create, modify, and display objects deriving from this interface.
+*/
+
+class IMultiOutputConsumer: public FPMixinInterface
+{
+public:
+	
+	virtual int  GetNumInputs() const = 0; 
+	virtual bool SetOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) = 0;
+	virtual bool GetOutputFromInput( int input_index, ReferenceTarget*& output_rtarg, int& output_index ) const = 0;
+	virtual bool CanAssignOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) const = 0;
+	virtual MSTR GetInputName( int input_index ) const = 0;
+	virtual MSTR GetInputLocalizedName( int input_index ) const = 0;
+	
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+private:
+
+	ReferenceTarget* MXS_GetOutputRefTargetFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = 0x0; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return rtarg; 
+		}
+		return 0x0; 
+	}
+
+	int MXS_GetOutputIndexFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = 0x0; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return output_index; 
+		}
+		return IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+	}
+
+public:
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  
+		imultioutputconsumer_getnuminputs, 
+		imultioutputconsumer_setoutputtoinput, 
+		imultioutputconsumer_getoutputrtargfrominput, 
+		imultioutputconsumer_getoutputindexfrominput, 
+		imultioutputconsumer_canassignoutputtoinput, 
+		imultioutputconsumer_getinputname,
+		imultioutputconsumer_getinputlocalizedname
+	};
+
+	#pragma warning(push)
+	#pragma warning(disable:4238)
+		BEGIN_FUNCTION_MAP
+			RO_PROP_FN( imultioutputconsumer_getnuminputs,						GetNumInputs, TYPE_INT );
+			FN_3( imultioutputconsumer_setoutputtoinput,		 TYPE_bool,		SetOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputrtargfrominput,  TYPE_REFTARG,	MXS_GetOutputRefTargetFromInput,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputindexfrominput,  TYPE_INDEX,	MXS_GetOutputIndexFromInput,	TYPE_INDEX );
+			FN_3( imultioutputconsumer_canassignoutputtoinput,	 TYPE_bool,		CanAssignOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputname,			 TYPE_TSTR_BV,	GetInputName,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputlocalizedname,	 TYPE_TSTR_BV,	GetInputLocalizedName,	TYPE_INDEX );
+		END_FUNCTION_MAP
+	#pragma warning(pop)
+};
+
+
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on IMultipleOutputChannels-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+static FPInterfaceDesc imultioutput_consumer_interface(
+	IMULTIOUTPUT_CONSUMER_INTERFACE, _T("iMultiOutputConsumer"), 0, NULL, FP_MIXIN,
+
+	IMultiOutputConsumer::imultioutputconsumer_setoutputtoinput, _T("SetOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getoutputrtargfrominput, _T("GetOutputRefTargetFromInput"), 0, TYPE_REFTARG, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		
+	IMultiOutputConsumer::imultioutputconsumer_getoutputindexfrominput, _T("GetOutputIndexFromInput"), 0, TYPE_INDEX, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_canassignoutputtoinput, _T("CanAssignOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputname, _T("GetInputName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputlocalizedname, _T("GetInputLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	properties,
+
+	IMultiOutputConsumer::imultioutputconsumer_getnuminputs, FP_NO_FUNCTION, _T("numInputs"), FP_NO_REDRAW, TYPE_INT,
+
+	p_end
+);
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannels.h b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannels.h
new file mode 100644
index 0000000..668bba2
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannels.h
@@ -0,0 +1,144 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_INTERFACE Interface_ID(0x43147cc9, 0x600e29ff)
+
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+
+//! \brief This notification is sent to dependents when a IMultipleOutputChannels's output channel list changes.
+/*!  It is sent by IMultipleOutputChannels-derived objects to tell dependents when the number or ordering 
+of output channels changes, so those objects can keep pointing at the correct output channel.  
+The PartID is a pointer to a Tab of MultiOutputChannelNumberChanged structure instances (defined in 
+IMultipleOutputChannels.h) in which each element contains an old-to-new mapping. A new channel index 
+of -1 implies the channel was removed. A old channel index of -1 implies the channel was added.
+IMultipleOutputChannelsConsumerWrapper-derived objects typically consume this notification.
+NOTE: If you send this message, the 'propagate' argument of NotifyDependents must be false. 
+Otherwise, dependents of dependents think that their ref's output channel list is changing.*/
+#define REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED 				REFMSG_USER+0x13654850
+
+#define REFMSG_MULTIOUTPUT_CHANNEL_NEEDUPDATE 					REFMSG_USER+0x13654851
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannels: public FPMixinInterface
+{
+public:
+	//! \brief Returns the number of output channels the object exposes.
+	/*! The plugin implements this method to indicate the number of output channels it exposes.
+	\return The number of output channels the object exposes.
+	*/
+	virtual int GetNumIMultipleOutputChannels() const = 0;
+
+	//! \brief Returns the localized name for the specified output channel.
+	/*! The plugin implements this method to provide the localized names of the output channels it exposes. These names will be used in the UI.
+	\param[in] index - The index of the output channel.
+	\return The localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelLocalizedName( int index ) const = 0;
+
+	//! \brief Returns the non-localized name for the specified output channel.
+	/*! The plugin implements this method to provide the non-localized names of the output channels it exposes. These would typically be used in scripts to provide locale independence.
+	\param[in] index - The index of the output channel.
+	\return The non-localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelName( int index ) const = 0;
+
+	//! \brief Returns the Parameter type for the specified output channel.
+	/*! The plugin implements this method to provide the parameter type of the output channels it exposes. The type can be used for parameter validation
+	between input and output channels.
+	\param[in] index - The index of the output channel.
+	\return The parameter type of the output channel.
+	Note: the data type will correspond to one of the data types supported by the ParamBlock2 system, tabs are not supported
+	*/
+	virtual ParamType3 GetIMultipleOutputChannelType( int index) const =0;
+
+	//! \brief Data structure for REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notifications
+	/*! A REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notification sends a Tab<MultiOutputChannelNumberChanged>*, which provides old-to-new output channel indexing. 
+	An old index value of -1 means the output channel is new, a new output index of -1 means the old output channel was removed.
+	*/
+	struct MultiOutputChannelNumberChanged
+	{
+		int oldIndex;
+		int newIndex;
+	};
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getnumoutputs, getlocalizedoutputname, getoutputname };
+	// FP-published symbolic enumerations
+
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP
+		RO_PROP_FN(getnumoutputs, GetNumIMultipleOutputChannels, TYPE_INT);
+		FN_1( getlocalizedoutputname,	TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelLocalizedName,	TYPE_INDEX );
+		FN_1( getoutputname,			TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelName,	TYPE_INDEX );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+
+protected:
+	// FPS exposure stub methods
+	void ValidateIMultipleOutputChannelIndexValue(int index)  const 
+	{
+		if (index < 0 || index >= GetNumIMultipleOutputChannels())
+			throw MAXException(_M("Invalid IMultiOutput channel index"));
+	}
+private:
+	MSTR MXS_GetIMultipleOutputChannelLocalizedName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelLocalizedName(index);
+	}
+	MSTR MXS_GetIMultipleOutputChannelName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelName(index);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on IMultipleOutputChannels-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_interface(
+	IMULTIPLEOUTPUTCHANNELS_INTERFACE, _T("iMultipleOutputChannels"), 0, nullptr, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
new file mode 100644
index 0000000..1058b99
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2023/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
@@ -0,0 +1,288 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE Interface_ID(0x24280bd5, 0x22b1edca)
+
+#include "IMultipleOutputChannels.h"
+#include "../../maxsdk/include/paramtype.h"
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include "../../maxsdk/include/interval.h"
+
+// forward declarations
+class Point3;
+class Point4;
+class Color;
+class AColor;
+class Mtl;
+class Texmap;
+class PBBitmap;
+class INode;
+class ReferenceTarget;
+class IParamBlock2;
+class Matrix3;
+namespace MaxSDK
+{
+	namespace AssetManagement
+	{
+		class AssetUser;
+	}
+}
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_with_values_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannelsWithChannelValues: public IMultipleOutputChannels
+{
+public:
+	//! \brief Indicates whether a REFMSG_CHANGED notification received from the object should be propagated from dependents using just the channel output value.
+	/*! The plugin implements this method to optimize REFMSG_CHANGE propagation. An object using an output channel value from this object will receive REFMSG_CHANGE notifications for
+	all changes to this object, even if that change does not affect the contents of the value retrieved from an output channel. The REFMSG_CHANGE notification does not need to 
+	propagate from that object since its dependents are not affected by the change. If this method returns false, the object can return REF_STOP from its NotifyRefChanged if this object
+	is the target object.
+	\param[in] index - The index of the output channel.
+	\return false if a REFMSG_CHANGE notification from this object can be blocked from propagating from objects using just the specified output channel's data value.
+	*/
+	virtual bool GetIMultipleOutputChannelValueChanged( int index) const { return true; } 
+
+	//! \brief Returns the output data value for the specified output channel.
+	/*! The plugin implements this method to return the output channel's data value as an FPValue.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return The data value for the specified output channel as an FPValue.
+	*/
+	virtual FPValue GetIMultipleOutputChannelValue( int index, TimeValue t, Interval& ivalid ) const = 0;
+
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, float& v, Interval& ivalid ) const { return false; } // TYPE_FLOAT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, int& 			v, Interval& ivalid ) const { return false; } // TYPE_INT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Color&			v, Interval& ivalid ) const { return false; } // TYPE_RGBA
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point3&			v, Interval& ivalid ) const { return false; } // TYPE_POINT3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MCHAR*&	v, Interval& ivalid ) const { return false; } // TYPE_STRING
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MaxSDK::AssetManagement::AssetUser *&	v, Interval& ivalid ) const { return false; } // TYPE_FILENAME
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Mtl*& 			v, Interval& ivalid ) const { return false; } // TYPE_MTL
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Texmap*&		v, Interval& ivalid ) const { return false; } // TYPE_TEXMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, PBBitmap*&		v, Interval& ivalid ) const { return false; } // TYPE_BITMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, INode*&			v, Interval& ivalid ) const { return false; } // TYPE_INODE
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, ReferenceTarget*& v, Interval& ivalid ) const { return false; } // TYPE_REFTARG
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Matrix3&		v, Interval& ivalid ) const { return false; } // TYPE_MATRIX3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, IParamBlock2*&	v, Interval& ivalid ) const { return false; } // TYPE_PBLOCK2
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point4&			v, Interval& ivalid ) const { return false; } // TYPE_POINT4
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, AColor&			v, Interval& ivalid ) const { return false; } // TYPE_FRGBA
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getoutputtype = IMultipleOutputChannels::getoutputname+1, getoutputvalue };
+	// FP-published symbolic enumerations
+	enum
+	{
+		outputChannelType,
+	};
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP_PARENT(IMultipleOutputChannels)
+		FN_1( getoutputtype,			TYPE_ENUM,			MXS_GetIMultipleOutputChannelType,	TYPE_INDEX );
+		FN_2( getoutputvalue,			TYPE_FPVALUE_BV,	MXS_GetIMultipleOutputChannelValue,	TYPE_INDEX, TYPE_TIMEVALUE );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+
+private:
+	DWORD MXS_GetIMultipleOutputChannelType( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelType(index);
+	}
+	FPValue MXS_GetIMultipleOutputChannelValue( int index, TimeValue t )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		Interval valid;
+		return GetIMultipleOutputChannelValue(index, t, valid);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on iMultipleOutputChannelsWithValues-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for iMultipleOutputChannelsWithValues-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_with_values_interface(
+	IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE, _T("iMultipleOutputChannelsWithValues"), 0, NULL, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputtype, _T("getIMultipleOutputChannelType"), 0, TYPE_ENUM, IMultipleOutputChannelsWithChannelValues::outputChannelType, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputvalue, _T("getIMultipleOutputChannelValue"), 0, TYPE_FPVALUE_BV, FP_NO_REDRAW, 2,
+		_T("index"),		0,	TYPE_INDEX,  
+		_T("time"),			0,	TYPE_TIMEVALUE,  f_keyArgDefault, 0,
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	// symbolic enumerations
+	enums,
+	IMultipleOutputChannelsWithChannelValues::outputChannelType, 15,
+		_T("float"),		TYPE_FLOAT,
+		_T("integer"),		TYPE_INT,
+		_T("rgb"),			TYPE_RGBA,
+		_T("point3"),		TYPE_POINT3,
+		_T("string"),		TYPE_STRING,
+		_T("filename"),		TYPE_FILENAME,
+		_T("material"),		TYPE_MTL,
+		_T("texturemap"),	TYPE_TEXMAP,
+		_T("bitmap"),		TYPE_BITMAP,
+		_T("node"),			TYPE_INODE,
+		_T("maxObject"),	TYPE_REFTARG,
+		_T("matrix3"),		TYPE_MATRIX3,
+		_T("paramblock2"),	TYPE_PBLOCK2,
+		_T("point4"),		TYPE_POINT4,
+		_T("frgba"),		TYPE_FRGBA,
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2023/iparamb3.h b/additional_includes/MaxRestrictedSdk/2023/iparamb3.h
new file mode 100644
index 0000000..b869d38
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2023/iparamb3.h
@@ -0,0 +1,30 @@
+//**************************************************************************/
+// Copyright (c) 2008 Autodesk, Inc.
+// All rights reserved.
+// 
+// These coded instructions, statements, and computer programs contain
+// unpublished proprietary information written by Autodesk, Inc., and are
+// protected by Federal copyright law. They may not be disclosed to third
+// parties or copied or duplicated in any form, in whole or in part, without
+// the prior written consent of Autodesk, Inc.
+//**************************************************************************/
+#pragma once
+
+#include <iparamb2.h>
+
+// New types for IParamBlock3
+// Notice currently(R13) we don't need support for TYPE_BOOL2_TAB, TYPE_BOOL3_TAB, TYPE_BOOL4_TAB...
+// So these are not defined, but they are expected to be defined in the future if needed.
+// Should these parameter types be processed in RescaleParam? Currently are.
+enum ParamType3 {
+	TYPE_BOOL2 = TYPE_UNSPECIFIED + 1, 
+	TYPE_BOOL3, 
+	TYPE_BOOL4, 
+	TYPE_INT2, 
+	TYPE_INT3, 
+	TYPE_INT4, 
+	TYPE_INT2_TAB = TYPE_INT2 + TYPE_TAB, 
+	TYPE_INT3_TAB = TYPE_INT3 + TYPE_TAB, 
+	TYPE_INT4_TAB = TYPE_INT4 + TYPE_TAB, 
+	TYPE_MAX_TYPE3, 
+};
diff --git a/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultiOutputConsumer.h b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultiOutputConsumer.h
new file mode 100644
index 0000000..32dc19a
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultiOutputConsumer.h
@@ -0,0 +1,154 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+#define IMULTIOUTPUT_CONSUMER_INTERFACE Interface_ID( 0x6d4a30ed, 0x61024d74 )
+
+#define IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX ( -1 )
+
+#define REFMSG_MULTIOUTPUT_CONSUMER_NEEDUPDATE REFMSG_USER + 0x13654852
+
+// forward declarations
+class ReferenceTarget;
+class ReferenceMaker;
+
+//! \brief An interface for objects that reference other objects that implement IMultipleOutputChannels and acquire output channel data from those objects.
+/*! \sa Class IMultipleOutputChannels, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED
+	An object can acquire output channel data from another object by requesting the IMultipleOutputChannels interface from that object, and then calling
+	GetOutputChannelValue(int index) on that interface. This interface provides read/write access to the specification of which source objects implementing 
+	IMultipleOutputChannels are being used and which output channel indices to use on those objects. 
+	This interface is used by Schematic Material Editor to help create, modify, and display objects deriving from this interface.
+*/
+
+class IMultiOutputConsumer: public FPMixinInterface
+{
+public:
+	
+	virtual int  GetNumInputs() const = 0; 
+	virtual bool SetOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) = 0;
+	virtual bool GetOutputFromInput( int input_index, ReferenceTarget*& output_rtarg, int& output_index ) const = 0;
+	virtual bool CanAssignOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) const = 0;
+	virtual MSTR GetInputName( int input_index ) const = 0;
+	virtual MSTR GetInputLocalizedName( int input_index ) const = 0;
+	virtual ParamType3 GetInputType( int input_index ) const = 0;
+	
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+private:
+
+	ReferenceTarget* MXS_GetOutputRefTargetFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = nullptr; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return rtarg; 
+		}
+		return nullptr; 
+	}
+
+	int MXS_GetOutputIndexFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = nullptr; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return output_index; 
+		}
+		return IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+	}
+
+public:
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  
+		imultioutputconsumer_getnuminputs, 
+		imultioutputconsumer_setoutputtoinput, 
+		imultioutputconsumer_getoutputrtargfrominput, 
+		imultioutputconsumer_getoutputindexfrominput, 
+		imultioutputconsumer_canassignoutputtoinput, 
+		imultioutputconsumer_getinputname,
+		imultioutputconsumer_getinputlocalizedname
+	};
+
+	#pragma warning(push)
+	#pragma warning(disable:4238)
+		BEGIN_FUNCTION_MAP
+			RO_PROP_FN( imultioutputconsumer_getnuminputs,						GetNumInputs, TYPE_INT );
+			FN_3( imultioutputconsumer_setoutputtoinput,		 TYPE_bool,		SetOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputrtargfrominput,  TYPE_REFTARG,	MXS_GetOutputRefTargetFromInput,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputindexfrominput,  TYPE_INDEX,	MXS_GetOutputIndexFromInput,	TYPE_INDEX );
+			FN_3( imultioutputconsumer_canassignoutputtoinput,	 TYPE_bool,		CanAssignOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputname,			 TYPE_TSTR_BV,	GetInputName,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputlocalizedname,	 TYPE_TSTR_BV,	GetInputLocalizedName,	TYPE_INDEX );
+		END_FUNCTION_MAP
+	#pragma warning(pop)
+};
+
+
+// ----------------------------------------------------------------------------
+/** \brief Function Publishing descriptor for Mixin interface on
+ * IMultipleOutputChannels-derived classes  
+ * 
+ * This interface needs to be manually added to the ClassDesc for
+ * IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This
+ * is typically performed in the ClassDesc::Create method.  
+ * 
+ * \see IMultipleOutputChannels 
+ */
+static FPInterfaceDesc imultioutput_consumer_interface(
+	IMULTIOUTPUT_CONSUMER_INTERFACE, _T("iMultiOutputConsumer"), 0, nullptr, FP_MIXIN,
+
+	IMultiOutputConsumer::imultioutputconsumer_setoutputtoinput, _T("SetOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getoutputrtargfrominput, _T("GetOutputRefTargetFromInput"), 0, TYPE_REFTARG, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		
+	IMultiOutputConsumer::imultioutputconsumer_getoutputindexfrominput, _T("GetOutputIndexFromInput"), 0, TYPE_INDEX, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_canassignoutputtoinput, _T("CanAssignOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputname, _T("GetInputName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputlocalizedname, _T("GetInputLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	properties,
+
+	IMultiOutputConsumer::imultioutputconsumer_getnuminputs, FP_NO_FUNCTION, _T("numInputs"), FP_NO_REDRAW, TYPE_INT,
+
+	p_end
+);
+
+// ----------------------------------------------------------------------------
+/** Convenience helper function to retrieve the IMultiOutputConsumer interface
+ * from an ReferenceTarget.  
+ * \param [in] rtarg  The ReferenceTarget to be asked for the interface. Will be
+ *                    internally checked for nullptr, so there is no need to
+ *                    check outside.  
+ * \returns A pointer to the IMultiOutputConsumer interface of the given
+ *          ReferenceTarget, if it supports it, or a nullptr.  
+ * \see IMultiOutputConsumer, imultioutput_consumer_interface
+ */
+template <typename T>
+inline IMultiOutputConsumer* GetIMultiOutputConsumer(T* rtarg)
+{
+	return rtarg ? static_cast<IMultiOutputConsumer*>(rtarg->GetInterface(IMULTIOUTPUT_CONSUMER_INTERFACE)) : nullptr;
+}
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannels.h b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannels.h
new file mode 100644
index 0000000..4e1ad28
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannels.h
@@ -0,0 +1,166 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_INTERFACE Interface_ID(0x43147cc9, 0x600e29ff)
+
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+
+//! \brief This notification is sent to dependents when a IMultipleOutputChannels's output channel list changes.
+/*!  It is sent by IMultipleOutputChannels-derived objects to tell dependents when the number or ordering 
+of output channels changes, so those objects can keep pointing at the correct output channel.  
+The PartID is a pointer to a Tab of MultiOutputChannelNumberChanged structure instances (defined in 
+IMultipleOutputChannels.h) in which each element contains an old-to-new mapping. A new channel index 
+of -1 implies the channel was removed. A old channel index of -1 implies the channel was added.
+IMultipleOutputChannelsConsumerWrapper-derived objects typically consume this notification.
+NOTE: If you send this message, the 'propagate' argument of NotifyDependents must be false. 
+Otherwise, dependents of dependents think that their ref's output channel list is changing.*/
+#define REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED 				REFMSG_USER+0x13654850
+
+#define REFMSG_MULTIOUTPUT_CHANNEL_NEEDUPDATE 					REFMSG_USER+0x13654851
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannels: public FPMixinInterface
+{
+public:
+	//! \brief Returns the number of output channels the object exposes.
+	/*! The plugin implements this method to indicate the number of output channels it exposes.
+	\return The number of output channels the object exposes.
+	*/
+	virtual int GetNumIMultipleOutputChannels() const = 0;
+
+	//! \brief Returns the localized name for the specified output channel.
+	/*! The plugin implements this method to provide the localized names of the output channels it exposes. These names will be used in the UI.
+	\param[in] index - The index of the output channel.
+	\return The localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelLocalizedName( int index ) const = 0;
+
+	//! \brief Returns the non-localized name for the specified output channel.
+	/*! The plugin implements this method to provide the non-localized names of the output channels it exposes. These would typically be used in scripts to provide locale independence.
+	\param[in] index - The index of the output channel.
+	\return The non-localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelName( int index ) const = 0;
+
+	//! \brief Returns the Parameter type for the specified output channel.
+	/*! The plugin implements this method to provide the parameter type of the output channels it exposes. The type can be used for parameter validation
+	between input and output channels.
+	\param[in] index - The index of the output channel.
+	\return The parameter type of the output channel.
+	Note: the data type will correspond to one of the data types supported by the ParamBlock2 system, tabs are not supported
+	*/
+	virtual ParamType3 GetIMultipleOutputChannelType( int index) const =0;
+
+	//! \brief Data structure for REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notifications
+	/*! A REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notification sends a Tab<MultiOutputChannelNumberChanged>*, which provides old-to-new output channel indexing. 
+	An old index value of -1 means the output channel is new, a new output index of -1 means the old output channel was removed.
+	*/
+	struct MultiOutputChannelNumberChanged
+	{
+		int oldIndex;
+		int newIndex;
+	};
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getnumoutputs, getlocalizedoutputname, getoutputname };
+	// FP-published symbolic enumerations
+
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP
+		RO_PROP_FN(getnumoutputs, GetNumIMultipleOutputChannels, TYPE_INT);
+		FN_1( getlocalizedoutputname,	TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelLocalizedName,	TYPE_INDEX );
+		FN_1( getoutputname,			TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelName,	TYPE_INDEX );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+
+protected:
+	// FPS exposure stub methods
+	void ValidateIMultipleOutputChannelIndexValue(int index)  const 
+	{
+		if (index < 0 || index >= GetNumIMultipleOutputChannels())
+			throw MAXException(_M("Invalid IMultiOutput channel index"));
+	}
+private:
+	MSTR MXS_GetIMultipleOutputChannelLocalizedName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelLocalizedName(index);
+	}
+	MSTR MXS_GetIMultipleOutputChannelName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelName(index);
+	}
+};
+#pragma warning(pop)
+
+// ----------------------------------------------------------------------------
+/** \brief Function Publishing descriptor for Mixin interface on
+ * IMultipleOutputChannels-derived classes.  
+ * 
+ * This interface needs to be manually added to the ClassDesc for
+ * IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This
+ * is typically performed in the ClassDesc::Create method.  
+ * 
+ * \see IMultipleOutputChannels 
+ */
+
+static FPInterfaceDesc imultioutput_interface(
+	IMULTIPLEOUTPUTCHANNELS_INTERFACE, _T("iMultipleOutputChannels"), 0, nullptr, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	p_end
+);
+
+
+// ----------------------------------------------------------------------------
+/** Convenience helper function to retrieve the IMultipleOutputChannels
+ * interface from an ReferenceTarget.  
+ * \param [in] rtarg  The ReferenceTarget to be asked for the interface. Will be
+ *                    internally checked for nullptr, so there is no need to
+ *                    check outside.  
+ * \returns A pointer to the IMultipleOutputChannels interface of the given
+ *          ReferenceTarget, if it supports it, or a nullptr.  
+ * \see IMultipleOutputChannels, imultioutput_interface
+ */
+
+template <typename T>
+inline IMultipleOutputChannels* GetIMultipleOutputChannels(T* rtarg)
+{
+	return rtarg ? static_cast<IMultipleOutputChannels*>(rtarg->GetInterface(IMULTIPLEOUTPUTCHANNELS_INTERFACE)) : nullptr;
+}
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
new file mode 100644
index 0000000..1058b99
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2024/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
@@ -0,0 +1,288 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE Interface_ID(0x24280bd5, 0x22b1edca)
+
+#include "IMultipleOutputChannels.h"
+#include "../../maxsdk/include/paramtype.h"
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include "../../maxsdk/include/interval.h"
+
+// forward declarations
+class Point3;
+class Point4;
+class Color;
+class AColor;
+class Mtl;
+class Texmap;
+class PBBitmap;
+class INode;
+class ReferenceTarget;
+class IParamBlock2;
+class Matrix3;
+namespace MaxSDK
+{
+	namespace AssetManagement
+	{
+		class AssetUser;
+	}
+}
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_with_values_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannelsWithChannelValues: public IMultipleOutputChannels
+{
+public:
+	//! \brief Indicates whether a REFMSG_CHANGED notification received from the object should be propagated from dependents using just the channel output value.
+	/*! The plugin implements this method to optimize REFMSG_CHANGE propagation. An object using an output channel value from this object will receive REFMSG_CHANGE notifications for
+	all changes to this object, even if that change does not affect the contents of the value retrieved from an output channel. The REFMSG_CHANGE notification does not need to 
+	propagate from that object since its dependents are not affected by the change. If this method returns false, the object can return REF_STOP from its NotifyRefChanged if this object
+	is the target object.
+	\param[in] index - The index of the output channel.
+	\return false if a REFMSG_CHANGE notification from this object can be blocked from propagating from objects using just the specified output channel's data value.
+	*/
+	virtual bool GetIMultipleOutputChannelValueChanged( int index) const { return true; } 
+
+	//! \brief Returns the output data value for the specified output channel.
+	/*! The plugin implements this method to return the output channel's data value as an FPValue.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return The data value for the specified output channel as an FPValue.
+	*/
+	virtual FPValue GetIMultipleOutputChannelValue( int index, TimeValue t, Interval& ivalid ) const = 0;
+
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, float& v, Interval& ivalid ) const { return false; } // TYPE_FLOAT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, int& 			v, Interval& ivalid ) const { return false; } // TYPE_INT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Color&			v, Interval& ivalid ) const { return false; } // TYPE_RGBA
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point3&			v, Interval& ivalid ) const { return false; } // TYPE_POINT3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MCHAR*&	v, Interval& ivalid ) const { return false; } // TYPE_STRING
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MaxSDK::AssetManagement::AssetUser *&	v, Interval& ivalid ) const { return false; } // TYPE_FILENAME
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Mtl*& 			v, Interval& ivalid ) const { return false; } // TYPE_MTL
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Texmap*&		v, Interval& ivalid ) const { return false; } // TYPE_TEXMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, PBBitmap*&		v, Interval& ivalid ) const { return false; } // TYPE_BITMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, INode*&			v, Interval& ivalid ) const { return false; } // TYPE_INODE
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, ReferenceTarget*& v, Interval& ivalid ) const { return false; } // TYPE_REFTARG
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Matrix3&		v, Interval& ivalid ) const { return false; } // TYPE_MATRIX3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, IParamBlock2*&	v, Interval& ivalid ) const { return false; } // TYPE_PBLOCK2
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point4&			v, Interval& ivalid ) const { return false; } // TYPE_POINT4
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, AColor&			v, Interval& ivalid ) const { return false; } // TYPE_FRGBA
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getoutputtype = IMultipleOutputChannels::getoutputname+1, getoutputvalue };
+	// FP-published symbolic enumerations
+	enum
+	{
+		outputChannelType,
+	};
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP_PARENT(IMultipleOutputChannels)
+		FN_1( getoutputtype,			TYPE_ENUM,			MXS_GetIMultipleOutputChannelType,	TYPE_INDEX );
+		FN_2( getoutputvalue,			TYPE_FPVALUE_BV,	MXS_GetIMultipleOutputChannelValue,	TYPE_INDEX, TYPE_TIMEVALUE );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+
+private:
+	DWORD MXS_GetIMultipleOutputChannelType( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelType(index);
+	}
+	FPValue MXS_GetIMultipleOutputChannelValue( int index, TimeValue t )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		Interval valid;
+		return GetIMultipleOutputChannelValue(index, t, valid);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on iMultipleOutputChannelsWithValues-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for iMultipleOutputChannelsWithValues-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_with_values_interface(
+	IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE, _T("iMultipleOutputChannelsWithValues"), 0, NULL, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputtype, _T("getIMultipleOutputChannelType"), 0, TYPE_ENUM, IMultipleOutputChannelsWithChannelValues::outputChannelType, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputvalue, _T("getIMultipleOutputChannelValue"), 0, TYPE_FPVALUE_BV, FP_NO_REDRAW, 2,
+		_T("index"),		0,	TYPE_INDEX,  
+		_T("time"),			0,	TYPE_TIMEVALUE,  f_keyArgDefault, 0,
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	// symbolic enumerations
+	enums,
+	IMultipleOutputChannelsWithChannelValues::outputChannelType, 15,
+		_T("float"),		TYPE_FLOAT,
+		_T("integer"),		TYPE_INT,
+		_T("rgb"),			TYPE_RGBA,
+		_T("point3"),		TYPE_POINT3,
+		_T("string"),		TYPE_STRING,
+		_T("filename"),		TYPE_FILENAME,
+		_T("material"),		TYPE_MTL,
+		_T("texturemap"),	TYPE_TEXMAP,
+		_T("bitmap"),		TYPE_BITMAP,
+		_T("node"),			TYPE_INODE,
+		_T("maxObject"),	TYPE_REFTARG,
+		_T("matrix3"),		TYPE_MATRIX3,
+		_T("paramblock2"),	TYPE_PBLOCK2,
+		_T("point4"),		TYPE_POINT4,
+		_T("frgba"),		TYPE_FRGBA,
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2024/iparamb3.h b/additional_includes/MaxRestrictedSdk/2024/iparamb3.h
new file mode 100644
index 0000000..b869d38
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2024/iparamb3.h
@@ -0,0 +1,30 @@
+//**************************************************************************/
+// Copyright (c) 2008 Autodesk, Inc.
+// All rights reserved.
+// 
+// These coded instructions, statements, and computer programs contain
+// unpublished proprietary information written by Autodesk, Inc., and are
+// protected by Federal copyright law. They may not be disclosed to third
+// parties or copied or duplicated in any form, in whole or in part, without
+// the prior written consent of Autodesk, Inc.
+//**************************************************************************/
+#pragma once
+
+#include <iparamb2.h>
+
+// New types for IParamBlock3
+// Notice currently(R13) we don't need support for TYPE_BOOL2_TAB, TYPE_BOOL3_TAB, TYPE_BOOL4_TAB...
+// So these are not defined, but they are expected to be defined in the future if needed.
+// Should these parameter types be processed in RescaleParam? Currently are.
+enum ParamType3 {
+	TYPE_BOOL2 = TYPE_UNSPECIFIED + 1, 
+	TYPE_BOOL3, 
+	TYPE_BOOL4, 
+	TYPE_INT2, 
+	TYPE_INT3, 
+	TYPE_INT4, 
+	TYPE_INT2_TAB = TYPE_INT2 + TYPE_TAB, 
+	TYPE_INT3_TAB = TYPE_INT3 + TYPE_TAB, 
+	TYPE_INT4_TAB = TYPE_INT4 + TYPE_TAB, 
+	TYPE_MAX_TYPE3, 
+};
diff --git a/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultiOutputConsumer.h b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultiOutputConsumer.h
new file mode 100644
index 0000000..32dc19a
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultiOutputConsumer.h
@@ -0,0 +1,154 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+#define IMULTIOUTPUT_CONSUMER_INTERFACE Interface_ID( 0x6d4a30ed, 0x61024d74 )
+
+#define IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX ( -1 )
+
+#define REFMSG_MULTIOUTPUT_CONSUMER_NEEDUPDATE REFMSG_USER + 0x13654852
+
+// forward declarations
+class ReferenceTarget;
+class ReferenceMaker;
+
+//! \brief An interface for objects that reference other objects that implement IMultipleOutputChannels and acquire output channel data from those objects.
+/*! \sa Class IMultipleOutputChannels, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED
+	An object can acquire output channel data from another object by requesting the IMultipleOutputChannels interface from that object, and then calling
+	GetOutputChannelValue(int index) on that interface. This interface provides read/write access to the specification of which source objects implementing 
+	IMultipleOutputChannels are being used and which output channel indices to use on those objects. 
+	This interface is used by Schematic Material Editor to help create, modify, and display objects deriving from this interface.
+*/
+
+class IMultiOutputConsumer: public FPMixinInterface
+{
+public:
+	
+	virtual int  GetNumInputs() const = 0; 
+	virtual bool SetOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) = 0;
+	virtual bool GetOutputFromInput( int input_index, ReferenceTarget*& output_rtarg, int& output_index ) const = 0;
+	virtual bool CanAssignOutputToInput( int input_index, ReferenceTarget* output_rtarg, int output_index ) const = 0;
+	virtual MSTR GetInputName( int input_index ) const = 0;
+	virtual MSTR GetInputLocalizedName( int input_index ) const = 0;
+	virtual ParamType3 GetInputType( int input_index ) const = 0;
+	
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+private:
+
+	ReferenceTarget* MXS_GetOutputRefTargetFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = nullptr; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return rtarg; 
+		}
+		return nullptr; 
+	}
+
+	int MXS_GetOutputIndexFromInput( int input_index )
+	{
+		ReferenceTarget* rtarg = nullptr; 
+		int output_index = IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+		if( GetOutputFromInput( input_index, rtarg, output_index ) )
+		{
+			return output_index; 
+		}
+		return IMULTIOUTPUT_CONSUMER_NO_OUTPUT_INDEX; 
+	}
+
+public:
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  
+		imultioutputconsumer_getnuminputs, 
+		imultioutputconsumer_setoutputtoinput, 
+		imultioutputconsumer_getoutputrtargfrominput, 
+		imultioutputconsumer_getoutputindexfrominput, 
+		imultioutputconsumer_canassignoutputtoinput, 
+		imultioutputconsumer_getinputname,
+		imultioutputconsumer_getinputlocalizedname
+	};
+
+	#pragma warning(push)
+	#pragma warning(disable:4238)
+		BEGIN_FUNCTION_MAP
+			RO_PROP_FN( imultioutputconsumer_getnuminputs,						GetNumInputs, TYPE_INT );
+			FN_3( imultioutputconsumer_setoutputtoinput,		 TYPE_bool,		SetOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputrtargfrominput,  TYPE_REFTARG,	MXS_GetOutputRefTargetFromInput,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getoutputindexfrominput,  TYPE_INDEX,	MXS_GetOutputIndexFromInput,	TYPE_INDEX );
+			FN_3( imultioutputconsumer_canassignoutputtoinput,	 TYPE_bool,		CanAssignOutputToInput,	TYPE_INDEX, TYPE_REFTARG, TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputname,			 TYPE_TSTR_BV,	GetInputName,	TYPE_INDEX );
+			FN_1( imultioutputconsumer_getinputlocalizedname,	 TYPE_TSTR_BV,	GetInputLocalizedName,	TYPE_INDEX );
+		END_FUNCTION_MAP
+	#pragma warning(pop)
+};
+
+
+// ----------------------------------------------------------------------------
+/** \brief Function Publishing descriptor for Mixin interface on
+ * IMultipleOutputChannels-derived classes  
+ * 
+ * This interface needs to be manually added to the ClassDesc for
+ * IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This
+ * is typically performed in the ClassDesc::Create method.  
+ * 
+ * \see IMultipleOutputChannels 
+ */
+static FPInterfaceDesc imultioutput_consumer_interface(
+	IMULTIOUTPUT_CONSUMER_INTERFACE, _T("iMultiOutputConsumer"), 0, nullptr, FP_MIXIN,
+
+	IMultiOutputConsumer::imultioutputconsumer_setoutputtoinput, _T("SetOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getoutputrtargfrominput, _T("GetOutputRefTargetFromInput"), 0, TYPE_REFTARG, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		
+	IMultiOutputConsumer::imultioutputconsumer_getoutputindexfrominput, _T("GetOutputIndexFromInput"), 0, TYPE_INDEX, 0, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_canassignoutputtoinput, _T("CanAssignOutputToInput"), 0, TYPE_bool, 0, 3,
+		_T("input_index"),		0,	TYPE_INDEX,  
+		_T("output_rtarg"),		0,	TYPE_REFTARG,  
+		_T("output_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputname, _T("GetInputName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	IMultiOutputConsumer::imultioutputconsumer_getinputlocalizedname, _T("GetInputLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("input_index"),		0,	TYPE_INDEX,  
+
+	properties,
+
+	IMultiOutputConsumer::imultioutputconsumer_getnuminputs, FP_NO_FUNCTION, _T("numInputs"), FP_NO_REDRAW, TYPE_INT,
+
+	p_end
+);
+
+// ----------------------------------------------------------------------------
+/** Convenience helper function to retrieve the IMultiOutputConsumer interface
+ * from an ReferenceTarget.  
+ * \param [in] rtarg  The ReferenceTarget to be asked for the interface. Will be
+ *                    internally checked for nullptr, so there is no need to
+ *                    check outside.  
+ * \returns A pointer to the IMultiOutputConsumer interface of the given
+ *          ReferenceTarget, if it supports it, or a nullptr.  
+ * \see IMultiOutputConsumer, imultioutput_consumer_interface
+ */
+template <typename T>
+inline IMultiOutputConsumer* GetIMultiOutputConsumer(T* rtarg)
+{
+	return rtarg ? static_cast<IMultiOutputConsumer*>(rtarg->GetInterface(IMULTIOUTPUT_CONSUMER_INTERFACE)) : nullptr;
+}
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannels.h b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannels.h
new file mode 100644
index 0000000..4e1ad28
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannels.h
@@ -0,0 +1,166 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_INTERFACE Interface_ID(0x43147cc9, 0x600e29ff)
+
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include <iparamb3.h>
+
+//! \brief This notification is sent to dependents when a IMultipleOutputChannels's output channel list changes.
+/*!  It is sent by IMultipleOutputChannels-derived objects to tell dependents when the number or ordering 
+of output channels changes, so those objects can keep pointing at the correct output channel.  
+The PartID is a pointer to a Tab of MultiOutputChannelNumberChanged structure instances (defined in 
+IMultipleOutputChannels.h) in which each element contains an old-to-new mapping. A new channel index 
+of -1 implies the channel was removed. A old channel index of -1 implies the channel was added.
+IMultipleOutputChannelsConsumerWrapper-derived objects typically consume this notification.
+NOTE: If you send this message, the 'propagate' argument of NotifyDependents must be false. 
+Otherwise, dependents of dependents think that their ref's output channel list is changing.*/
+#define REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED 				REFMSG_USER+0x13654850
+
+#define REFMSG_MULTIOUTPUT_CHANNEL_NEEDUPDATE 					REFMSG_USER+0x13654851
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannels: public FPMixinInterface
+{
+public:
+	//! \brief Returns the number of output channels the object exposes.
+	/*! The plugin implements this method to indicate the number of output channels it exposes.
+	\return The number of output channels the object exposes.
+	*/
+	virtual int GetNumIMultipleOutputChannels() const = 0;
+
+	//! \brief Returns the localized name for the specified output channel.
+	/*! The plugin implements this method to provide the localized names of the output channels it exposes. These names will be used in the UI.
+	\param[in] index - The index of the output channel.
+	\return The localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelLocalizedName( int index ) const = 0;
+
+	//! \brief Returns the non-localized name for the specified output channel.
+	/*! The plugin implements this method to provide the non-localized names of the output channels it exposes. These would typically be used in scripts to provide locale independence.
+	\param[in] index - The index of the output channel.
+	\return The non-localized name for the specified output channel.
+	*/
+	virtual MSTR GetIMultipleOutputChannelName( int index ) const = 0;
+
+	//! \brief Returns the Parameter type for the specified output channel.
+	/*! The plugin implements this method to provide the parameter type of the output channels it exposes. The type can be used for parameter validation
+	between input and output channels.
+	\param[in] index - The index of the output channel.
+	\return The parameter type of the output channel.
+	Note: the data type will correspond to one of the data types supported by the ParamBlock2 system, tabs are not supported
+	*/
+	virtual ParamType3 GetIMultipleOutputChannelType( int index) const =0;
+
+	//! \brief Data structure for REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notifications
+	/*! A REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED notification sends a Tab<MultiOutputChannelNumberChanged>*, which provides old-to-new output channel indexing. 
+	An old index value of -1 means the output channel is new, a new output index of -1 means the old output channel was removed.
+	*/
+	struct MultiOutputChannelNumberChanged
+	{
+		int oldIndex;
+		int newIndex;
+	};
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getnumoutputs, getlocalizedoutputname, getoutputname };
+	// FP-published symbolic enumerations
+
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP
+		RO_PROP_FN(getnumoutputs, GetNumIMultipleOutputChannels, TYPE_INT);
+		FN_1( getlocalizedoutputname,	TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelLocalizedName,	TYPE_INDEX );
+		FN_1( getoutputname,			TYPE_TSTR_BV,		MXS_GetIMultipleOutputChannelName,	TYPE_INDEX );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc() override;    // <-- must implement 
+
+protected:
+	// FPS exposure stub methods
+	void ValidateIMultipleOutputChannelIndexValue(int index)  const 
+	{
+		if (index < 0 || index >= GetNumIMultipleOutputChannels())
+			throw MAXException(_M("Invalid IMultiOutput channel index"));
+	}
+private:
+	MSTR MXS_GetIMultipleOutputChannelLocalizedName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelLocalizedName(index);
+	}
+	MSTR MXS_GetIMultipleOutputChannelName( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelName(index);
+	}
+};
+#pragma warning(pop)
+
+// ----------------------------------------------------------------------------
+/** \brief Function Publishing descriptor for Mixin interface on
+ * IMultipleOutputChannels-derived classes.  
+ * 
+ * This interface needs to be manually added to the ClassDesc for
+ * IMultipleOutputChannels-derived objects using ClassDesc::AddInterface. This
+ * is typically performed in the ClassDesc::Create method.  
+ * 
+ * \see IMultipleOutputChannels 
+ */
+
+static FPInterfaceDesc imultioutput_interface(
+	IMULTIPLEOUTPUTCHANNELS_INTERFACE, _T("iMultipleOutputChannels"), 0, nullptr, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	p_end
+);
+
+
+// ----------------------------------------------------------------------------
+/** Convenience helper function to retrieve the IMultipleOutputChannels
+ * interface from an ReferenceTarget.  
+ * \param [in] rtarg  The ReferenceTarget to be asked for the interface. Will be
+ *                    internally checked for nullptr, so there is no need to
+ *                    check outside.  
+ * \returns A pointer to the IMultipleOutputChannels interface of the given
+ *          ReferenceTarget, if it supports it, or a nullptr.  
+ * \see IMultipleOutputChannels, imultioutput_interface
+ */
+
+template <typename T>
+inline IMultipleOutputChannels* GetIMultipleOutputChannels(T* rtarg)
+{
+	return rtarg ? static_cast<IMultipleOutputChannels*>(rtarg->GetInterface(IMULTIPLEOUTPUTCHANNELS_INTERFACE)) : nullptr;
+}
\ No newline at end of file
diff --git a/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
new file mode 100644
index 0000000..1058b99
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2025/IMultipleOutputChannel/IMultipleOutputChannelsWithChannelValues.h
@@ -0,0 +1,288 @@
+//*********************************************************************/
+// Copyright (c) 2009-2020 Autodesk, Inc.
+// All rights reserved.
+//
+// Use of this software is subject to the terms of the Autodesk license
+// agreement provided at the time of installation or download, or which
+// otherwise accompanies this software in either electronic or hard copy form.
+//*********************************************************************/
+
+#pragma once
+
+#define IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE Interface_ID(0x24280bd5, 0x22b1edca)
+
+#include "IMultipleOutputChannels.h"
+#include "../../maxsdk/include/paramtype.h"
+#include "../../maxsdk/include/strclass.h"
+#include "../../maxsdk/include/ifnpub.h"
+#include "../../maxsdk/include/interval.h"
+
+// forward declarations
+class Point3;
+class Point4;
+class Color;
+class AColor;
+class Mtl;
+class Texmap;
+class PBBitmap;
+class INode;
+class ReferenceTarget;
+class IParamBlock2;
+class Matrix3;
+namespace MaxSDK
+{
+	namespace AssetManagement
+	{
+		class AssetUser;
+	}
+}
+
+//-------------------------------------------------------------
+//! \brief An interface for objects that that expose multiple output channels of various types that can be recognized by 3ds Max.
+/*! \sa Class IMultipleOutputChannelsConsumer, REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED, imultioutput_interface
+This interface provides support for exposing multiple output channels. Each output channel has its own data type. 
+
+This interface is primarily to support MetaSL and MR objects that have multiple outputs (for example, an XYZ and a derivative XYZ). Those objects will expose each output as a Texmap.
+
+Basic ParamBlock2 data types are supported by the interface, but not Tab data types. The interface could be expanded to handle Tab data types.
+
+Note: if you derive from this interface, see notification code REFMSG_MULTIOUTPUT_CHANNEL_NUMBER_CHANGED for information on how this notification should be sent or processed.
+
+Note: Classes that derive from this interface need to manually add the imultioutput_with_values_interface FPInterfaceDesc to their ClassDesc using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+*/
+#pragma warning(push)
+#pragma warning(disable:4100) // Unused parameters. 
+
+class IMultipleOutputChannelsWithChannelValues: public IMultipleOutputChannels
+{
+public:
+	//! \brief Indicates whether a REFMSG_CHANGED notification received from the object should be propagated from dependents using just the channel output value.
+	/*! The plugin implements this method to optimize REFMSG_CHANGE propagation. An object using an output channel value from this object will receive REFMSG_CHANGE notifications for
+	all changes to this object, even if that change does not affect the contents of the value retrieved from an output channel. The REFMSG_CHANGE notification does not need to 
+	propagate from that object since its dependents are not affected by the change. If this method returns false, the object can return REF_STOP from its NotifyRefChanged if this object
+	is the target object.
+	\param[in] index - The index of the output channel.
+	\return false if a REFMSG_CHANGE notification from this object can be blocked from propagating from objects using just the specified output channel's data value.
+	*/
+	virtual bool GetIMultipleOutputChannelValueChanged( int index) const { return true; } 
+
+	//! \brief Returns the output data value for the specified output channel.
+	/*! The plugin implements this method to return the output channel's data value as an FPValue.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return The data value for the specified output channel as an FPValue.
+	*/
+	virtual FPValue GetIMultipleOutputChannelValue( int index, TimeValue t, Interval& ivalid ) const = 0;
+
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, float& v, Interval& ivalid ) const { return false; } // TYPE_FLOAT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, int& 			v, Interval& ivalid ) const { return false; } // TYPE_INT
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Color&			v, Interval& ivalid ) const { return false; } // TYPE_RGBA
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point3&			v, Interval& ivalid ) const { return false; } // TYPE_POINT3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MCHAR*&	v, Interval& ivalid ) const { return false; } // TYPE_STRING
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, const MaxSDK::AssetManagement::AssetUser *&	v, Interval& ivalid ) const { return false; } // TYPE_FILENAME
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Mtl*& 			v, Interval& ivalid ) const { return false; } // TYPE_MTL
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Texmap*&		v, Interval& ivalid ) const { return false; } // TYPE_TEXMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, PBBitmap*&		v, Interval& ivalid ) const { return false; } // TYPE_BITMAP
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, INode*&			v, Interval& ivalid ) const { return false; } // TYPE_INODE
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, ReferenceTarget*& v, Interval& ivalid ) const { return false; } // TYPE_REFTARG
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Matrix3&		v, Interval& ivalid ) const { return false; } // TYPE_MATRIX3
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, IParamBlock2*&	v, Interval& ivalid ) const { return false; } // TYPE_PBLOCK2
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, Point4&			v, Interval& ivalid ) const { return false; } // TYPE_POINT4
+	//! \brief Access the output data value for the specified output channel.
+	/*! The plugin implements this method to access the output channel's data value as a float.
+	\param[in] index - The index of the output channel.
+	\param[in] t The time at which to get the value.
+	\param[out] v - The value to retrieve is returned here.
+	\param[out] ivalid - The validity interval of the value retrieved is returned here.
+	\return true if the output value was written to v.
+	*/
+	virtual bool GetIMultipleOutputChannelValue( int index, TimeValue t, AColor&			v, Interval& ivalid ) const { return false; } // TYPE_FRGBA
+
+	// FPMixinInterface exposure
+	// FP-published function IDs 
+	enum {  getoutputtype = IMultipleOutputChannels::getoutputname+1, getoutputvalue };
+	// FP-published symbolic enumerations
+	enum
+	{
+		outputChannelType,
+	};
+#pragma warning(push)
+#pragma warning(disable:4238)
+	BEGIN_FUNCTION_MAP_PARENT(IMultipleOutputChannels)
+		FN_1( getoutputtype,			TYPE_ENUM,			MXS_GetIMultipleOutputChannelType,	TYPE_INDEX );
+		FN_2( getoutputvalue,			TYPE_FPVALUE_BV,	MXS_GetIMultipleOutputChannelValue,	TYPE_INDEX, TYPE_TIMEVALUE );
+	END_FUNCTION_MAP
+#pragma warning(pop)
+
+	FPInterfaceDesc* GetDesc();    // <-- must implement 
+
+private:
+	DWORD MXS_GetIMultipleOutputChannelType( int index )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		return GetIMultipleOutputChannelType(index);
+	}
+	FPValue MXS_GetIMultipleOutputChannelValue( int index, TimeValue t )  const 
+	{
+		ValidateIMultipleOutputChannelIndexValue(index);
+		Interval valid;
+		return GetIMultipleOutputChannelValue(index, t, valid);
+	}
+};
+
+
+#pragma warning(pop)
+//-------------------------------------------------------------
+//! \brief Function Publishing descriptor for Mixin interface on iMultipleOutputChannelsWithValues-derived classes
+/*! \sa Class IMultipleOutputChannels 
+This interface needs to be manually added to the ClassDesc for iMultipleOutputChannelsWithValues-derived objects using ClassDesc::AddInterface. This is typically performed in the ClassDesc::Create method.
+
+*/
+static FPInterfaceDesc imultioutput_with_values_interface(
+	IMULTIPLEOUTPUTCHANNELS_WITH_VALUES_INTERFACE, _T("iMultipleOutputChannelsWithValues"), 0, NULL, FP_MIXIN,
+	IMultipleOutputChannels::getlocalizedoutputname, _T("getIMultipleOutputChannelLocalizedName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannels::getoutputname, _T("getIMultipleOutputChannelName"), 0, TYPE_TSTR_BV, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputtype, _T("getIMultipleOutputChannelType"), 0, TYPE_ENUM, IMultipleOutputChannelsWithChannelValues::outputChannelType, FP_NO_REDRAW, 1,
+		_T("index"),		0,	TYPE_INDEX,  
+	IMultipleOutputChannelsWithChannelValues::getoutputvalue, _T("getIMultipleOutputChannelValue"), 0, TYPE_FPVALUE_BV, FP_NO_REDRAW, 2,
+		_T("index"),		0,	TYPE_INDEX,  
+		_T("time"),			0,	TYPE_TIMEVALUE,  f_keyArgDefault, 0,
+
+	properties,
+	IMultipleOutputChannels::getnumoutputs, FP_NO_FUNCTION, _T("numIMultipleOutputChannels"),FP_NO_REDRAW,TYPE_INT,
+
+	// symbolic enumerations
+	enums,
+	IMultipleOutputChannelsWithChannelValues::outputChannelType, 15,
+		_T("float"),		TYPE_FLOAT,
+		_T("integer"),		TYPE_INT,
+		_T("rgb"),			TYPE_RGBA,
+		_T("point3"),		TYPE_POINT3,
+		_T("string"),		TYPE_STRING,
+		_T("filename"),		TYPE_FILENAME,
+		_T("material"),		TYPE_MTL,
+		_T("texturemap"),	TYPE_TEXMAP,
+		_T("bitmap"),		TYPE_BITMAP,
+		_T("node"),			TYPE_INODE,
+		_T("maxObject"),	TYPE_REFTARG,
+		_T("matrix3"),		TYPE_MATRIX3,
+		_T("paramblock2"),	TYPE_PBLOCK2,
+		_T("point4"),		TYPE_POINT4,
+		_T("frgba"),		TYPE_FRGBA,
+	p_end
+);
diff --git a/additional_includes/MaxRestrictedSdk/2025/iparamb3.h b/additional_includes/MaxRestrictedSdk/2025/iparamb3.h
new file mode 100644
index 0000000..b869d38
--- /dev/null
+++ b/additional_includes/MaxRestrictedSdk/2025/iparamb3.h
@@ -0,0 +1,30 @@
+//**************************************************************************/
+// Copyright (c) 2008 Autodesk, Inc.
+// All rights reserved.
+// 
+// These coded instructions, statements, and computer programs contain
+// unpublished proprietary information written by Autodesk, Inc., and are
+// protected by Federal copyright law. They may not be disclosed to third
+// parties or copied or duplicated in any form, in whole or in part, without
+// the prior written consent of Autodesk, Inc.
+//**************************************************************************/
+#pragma once
+
+#include <iparamb2.h>
+
+// New types for IParamBlock3
+// Notice currently(R13) we don't need support for TYPE_BOOL2_TAB, TYPE_BOOL3_TAB, TYPE_BOOL4_TAB...
+// So these are not defined, but they are expected to be defined in the future if needed.
+// Should these parameter types be processed in RescaleParam? Currently are.
+enum ParamType3 {
+	TYPE_BOOL2 = TYPE_UNSPECIFIED + 1, 
+	TYPE_BOOL3, 
+	TYPE_BOOL4, 
+	TYPE_INT2, 
+	TYPE_INT3, 
+	TYPE_INT4, 
+	TYPE_INT2_TAB = TYPE_INT2 + TYPE_TAB, 
+	TYPE_INT3_TAB = TYPE_INT3 + TYPE_TAB, 
+	TYPE_INT4_TAB = TYPE_INT4 + TYPE_TAB, 
+	TYPE_MAX_TYPE3, 
+};
diff --git a/build-scripts/Prepare-BinPackage.ps1 b/build-scripts/Prepare-BinPackage.ps1
new file mode 100644
index 0000000..f2f45eb
--- /dev/null
+++ b/build-scripts/Prepare-BinPackage.ps1
@@ -0,0 +1,52 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+Param(
+    [Parameter(Mandatory=$true, HelpMessage="Source component folder")]
+    [String]$SourceFolder,
+    [Parameter(Mandatory=$true, HelpMessage="Destination component folder")]
+    [String]$DestinationFolder,
+    [Parameter(Mandatory=$true, HelpMessage="Max Target Version")]
+    [String]$TargetVersion,
+    [Parameter(Mandatory=$true, HelpMessage="Component version")]
+    [String]$ComponentVersion,
+    [Parameter(Mandatory=$true, HelpMessage="Build number")]
+    [String]$BuildNumber
+)
+
+# Remove test binaries which should not ship with the plugin.
+function RemoveTestBinaries {
+    $UnitTestExe = "$DestinationFolder/Contents/Bin/USD.Unit.test.exe"
+    if (Test-Path -Path $UnitTestExe) {
+        Remove-Item $UnitTestExe
+    }
+}
+
+Write-Host "Destination Folder: $DestinationFolder"
+
+# Early bail out on error
+$ErrorActionPreference = "Stop"
+
+robocopy $SourceFolder $DestinationFolder /SL /MIR /NFL /NDL /XF *.ilk *.iobj *.ipdb *.pdb *.test.* gmock*.dll gtest*.dll
+
+# Load the "PackageContents.xml" file to insert the build number into the
+# "Patch" segment of the package's semantic version:
+$PackageContentsFile = "$DestinationFolder/PackageContents.xml"
+[xml]$XmlDocument = Get-Content -Path $PackageContentsFile
+
+RemoveTestBinaries
+
+$XmlDocument.Save($PackageContentsFile)
diff --git a/build-scripts/Prepare-PackageContents.ps1 b/build-scripts/Prepare-PackageContents.ps1
new file mode 100644
index 0000000..18a5a8b
--- /dev/null
+++ b/build-scripts/Prepare-PackageContents.ps1
@@ -0,0 +1,205 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+Param(
+    [Parameter(Mandatory=$true, HelpMessage="Max Target Version")]
+    [String]$TargetVersion,
+    [Parameter(Mandatory=$false, HelpMessage="Artifacts file")]
+    [String]$ArtifactsXmlFile="",
+    [Parameter(Mandatory=$false, HelpMessage="Configuration")]
+    [String]$Config="Release",
+    [Parameter(Mandatory=$false, HelpMessage="Component folder")]
+    [String]$SourceFolder="",
+    [Parameter(Mandatory=$false, HelpMessage="Build Number")]
+    [String]$BuildNumber="0",
+    [Parameter(Mandatory=$false, HelpMessage="Prepare For Distribution")]
+    [Boolean]$Distrib=$false,
+    [Parameter(Mandatory=$true, HelpMessage="Component version")]
+    [String]$ComponentVersion
+)
+if ($SourceFolder.Equals("")) {
+    $SourceFolder = "$PSScriptRoot\..\build\bin\x64\$Config\usd-component-$TargetVersion"
+}
+if ($ArtifactsXmlFile.Equals("")) {
+    $ArtifactsXmlFile = "$PSScriptRoot\..\artifacts_$TargetVersion.xml"
+}
+
+# Early bail out on error
+$ErrorActionPreference = "Stop"
+$UnstableSdk = @("2026")
+
+if ($Distrib -And $UnstableSdk -contains $TargetVersion) {
+    [xml]$ArtifactsXmlDocument = Get-Content -Path $ArtifactsXmlFile
+    $MaxSdkDependency = $ArtifactsXmlDocument.SelectSingleNode("//dependencies/dependency[artifactId='maxsdk']")
+    $MaxSdkVersion = $MaxSdkDependency.version
+    $MaxSdkClassifier = $MaxSdkDependency.classifier
+    $SplitIdentifier = $MaxSdkClassifier.Split("-")
+    $MaxSdkIdentifier = $SplitIdentifier[0]
+} Else {
+    $MaxSdkIdentifier = ""
+}
+
+function GetSeriesMinMaxVersion {
+    Param(
+        [Parameter(Mandatory=$true, HelpMessage="Target Max Version (major) ex 2022")]
+        [String]$MaxMajorVersion,
+        [Parameter(Mandatory=$true, HelpMessage="Target MaxSDK version ex. 24.0.0")]
+        [String]$MaxSdkVersion,
+        [Parameter(Mandatory=$true, HelpMessage="MaxSDK classifier ex. H203-57.0")]
+        [String]$MaxSdkClassifier
+    )
+    if ($Distrib -And $UnstableSdk -contains $TargetVersion) {
+        $MaxBuildNumber = $MaxSdkClassifier.Split("-")[0]
+        $MaxBuildNumber = $MaxBuildNumber.substring(1)
+        $MaxSdkVersionInfo = $MaxSdkVersion.Split(".")
+        $MaxSdkUpdateVersion = $MaxSdkVersionInfo[1]
+        $MaxSdkHotFixVersion = $MaxSdkVersionInfo[2]
+        # YYYY.update.hotfix.build
+        return $MaxMajorVersion + "." + $MaxSdkUpdateVersion + "." + $MaxSdkHotFixVersion + "." + $MaxBuildNumber
+    }
+
+    return $MaxMajorVersion
+}
+
+# Load the "PackageContents.xml" file to insert the build number into the 
+# "Patch" segment of the package's semantic version:
+$PackageContentsFile = "$SourceFolder/PackageContents.xml"
+[xml]$XmlDocument = Get-Content -Path $PackageContentsFile
+
+
+# Update both the "AppVersion" and "FriendlyVersion" attributes of the
+# "ApplicationPackage" root node:
+$AppVersion = $XmlDocument.SelectSingleNode("//ApplicationPackage/@AppVersion")
+$AppVersion.Value = "$ComponentVersion.$BuildNumber"
+
+$FriendlyVersion = $XmlDocument.SelectSingleNode("//ApplicationPackage/@FriendlyVersion")
+$FriendlyVersion.Value = "$ComponentVersion.$BuildNumber"
+
+if ($Distrib -And $UnstableSdk -contains $TargetVersion) {
+    $MinMaxVersion = GetSeriesMinMaxVersion -MaxMajorVersion $TargetVersion -MaxSdkVersion $MaxSdkVersion -MaxSdkClassifier $MaxSdkClassifier
+} Else {
+    $MinMaxVersion = $TargetVersion
+}
+
+# Update RuntimeRequirements to min=max=TargetVersion
+function UpdateMinMaxRuntimeRequirementBasedOnTargetVersion {
+    Param(
+        [Parameter(Mandatory=$true, HelpMessage="XmlDocument with the content of the 'PackageContents.xml' file")]
+        [xml]$XmlDocument,
+        [Parameter(Mandatory=$true, HelpMessage="Max Target Version for min/max runtime requirement")]
+        [String]$MinMaxVersion
+    )
+    $XmlDocument.SelectNodes("//RuntimeRequirements") | ForEach-Object {
+        $_.Attributes.RemoveNamedItem("SeriesMin")
+        $_.Attributes.RemoveNamedItem("SeriesMax")
+        $minAttr = $XmlDocument.CreateAttribute("SeriesMin")
+        $minAttr.Value = "$MinMaxVersion"
+        $maxAttr = $XmlDocument.CreateAttribute("SeriesMax")
+        $maxAttr.Value = "$MinMaxVersion"
+        $_.Attributes.SetNamedItem($minAttr)
+        $_.Attributes.SetNamedItem($maxAttr)
+    }
+}
+
+function AddMenus {
+    Param(
+        [Parameter(Mandatory=$true, HelpMessage="XmlDocument with the content of the 'PackageContents.xml' file")]
+        [xml]$XmlDocument,
+        [Parameter(Mandatory=$true, HelpMessage="Max Target Version for min/max runtime requirement")]
+        [String]$TargetVersion
+    )
+    $newMenuApixmlSnippet = @"
+
+    <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2025" SeriesMax="2026" />
+    <ComponentEntry ModuleName="./Contents/cui/usdMenu.mnx" />
+  
+"@
+    $legacyMenuApiXmlSnippet = @"
+
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2024" />
+        <ComponentEntry ModuleName="./Contents/scripts/registerMenu.ms" />
+  
+"@
+
+    # Select the ApplicationPackage element
+    $applicationPackage = $XmlDocument.SelectSingleNode("ApplicationPackage")
+    # Create a new XML element from the snippet
+    $newElement = [System.Xml.XmlElement] $XmlDocument.CreateElement("Components")
+
+    if ($TargetVersion -ge 2025) {
+        $newElement.SetAttribute("Description", "menu parts")
+        $newElement.InnerXml = $newMenuApixmlSnippet
+    } else {
+        $newElement.SetAttribute("Description", "post-start-up scripts parts")
+        $newElement.InnerXml = $legacyMenuApiXmlSnippet
+    }
+    # Append the new element to the ApplicationPackage element
+    $applicationPackage.AppendChild($newElement)
+}
+
+
+AddMenus -XmlDocument $XmlDocument -TargetVersion $TargetVersion
+UpdateMinMaxRuntimeRequirementBasedOnTargetVersion -XmlDocument $XmlDocument -MinMaxVersion $MinMaxVersion
+
+
+# Update UpgradeCodes and AppName
+function UpdateAppNameAndUpgradeCodes {
+    Param(
+        [Parameter(Mandatory=$true, HelpMessage="XmlDocument with the content of the 'PackageContents.xml' file")]
+        [xml]$XmlDocument,
+        [Parameter(Mandatory=$true, HelpMessage="Max Target Version for min/max runtime requirement")]
+        [String]$MaxTargetVersion
+    )
+    $appPackageNode = $XmlDocument.SelectSingleNode("ApplicationPackage")
+    $upgradeCodeAttr = $appPackageNode.Attributes.RemoveNamedItem("UpgradeCode")
+    $upgradeCodeAttr.Value = $upgradeCodeAttr.Value.Replace("XXXX", "$MaxTargetVersion")
+    $appPackageNode.Attributes.SetNamedItem($upgradeCodeAttr)
+
+    $productCodeAttr = $appPackageNode.Attributes.RemoveNamedItem("ProductCode")
+    $productCodeAttr.Value = $productCodeAttr.Value.Replace("XXXX", "$MaxTargetVersion")
+    $appPackageNode.Attributes.SetNamedItem($productCodeAttr)
+
+    $currentNameValue = $appPackageNode.Attributes.GetNamedItem("Name").Value
+    $currentDescriptionValue = $appPackageNode.Attributes.GetNamedItem("Description").Value
+
+    $appName = "$currentNameValue $TargetVersion"
+    if ($Distrib -And $UnstableSdk -contains $TargetVersion) {
+        $appName = "$currentNameValue $TargetVersion-$MaxSdkIdentifier"
+    }
+
+    $descriptionName = "$currentDescriptionValue $TargetVersion"
+    if ($Distrib -And $UnstableSdk -contains $TargetVersion) {
+        $descriptionName = "$currentDescriptionValue $TargetVersion-$MaxSdkIdentifier"
+    }
+    
+    $nameNodeAttr = $appPackageNode.Attributes.RemoveNamedItem("Name")
+    $nameNodeAttr.Value = $appName
+    $appPackageNode.Attributes.SetNamedItem($nameNodeAttr)
+
+    $descriptionNodeAttr = $appPackageNode.Attributes.RemoveNamedItem("Description")
+    $descriptionNodeAttr.Value = $descriptionName
+    $appPackageNode.Attributes.SetNamedItem($descriptionNodeAttr)
+}
+
+UpdateAppNameAndUpgradeCodes -XmlDocument $XmlDocument -MaxTargetVersion $TargetVersion
+
+# Update the "ProductCode" attribute of the "ApplicationPackage" root node:
+# For each build, the ProductCode would be newly generated
+$NewProductCode = '{'+[guid]::NewGuid().ToString()+'}'
+$ProductCode = $XmlDocument.SelectSingleNode("//ApplicationPackage/@ProductCode")
+$ProductCode.Value = $NewProductCode.ToUpper()
+
+$XmlDocument.Save($PackageContentsFile)
diff --git a/build-scripts/Prepare-VersionHeaders.ps1 b/build-scripts/Prepare-VersionHeaders.ps1
new file mode 100644
index 0000000..0077fb8
--- /dev/null
+++ b/build-scripts/Prepare-VersionHeaders.ps1
@@ -0,0 +1,49 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# NOTE: this is a temporary solution until there is a more standard
+# solution across component plugins from max-pipeline or devops team
+
+Param(
+	[Parameter(Mandatory=$true, HelpMessage="Source component folder")]
+	[String]$SourceFolder,
+	[Parameter(Mandatory=$true, HelpMessage="Build Number")]
+	[String]$BuildNumber="0",
+	[Parameter(Mandatory=$true, HelpMessage="Component version")]
+	[String]$ComponentVersion
+)
+
+$componentVersionHeaderFile = "$SourceFolder/USDComponentVersionNumber.h"
+$componentBuildNumberHeaderFile = "$SourceFolder/USDComponentBuildNumber.h"
+
+$componentVersions = $ComponentVersion.Split(".")
+Write-Host "$componentVersions"
+$componentVersionMajor = $componentVersions[0]
+$componentVersionMinor = $componentVersions[1]
+$componentVersionMicro = $componentVersions[2]
+
+$replaceVersionMajorRegex = '#define COMPONENT_VERSION_MAJOR.*'
+$replaceVersionMinorRegex = '#define COMPONENT_VERSION_MINOR.*'
+$replaceVersionMicroRegex = '#define COMPONENT_VERSION_MICRO.*'
+$replaceBuildNumberRegex = '#define VERSION_INT.*'
+
+Write-Host "Updating $componentVersionHeaderFile with version $componentVersionMajor $componentVersionMinor $componentVersionMicro"
+(Get-Content $componentVersionHeaderFile) -replace $replaceVersionMajorRegex, "#define COMPONENT_VERSION_MAJOR $componentVersionMajor" | Set-Content $componentVersionHeaderFile
+(Get-Content $componentVersionHeaderFile) -replace $replaceVersionMinorRegex, "#define COMPONENT_VERSION_MINOR $componentVersionMinor" | Set-Content $componentVersionHeaderFile
+(Get-Content $componentVersionHeaderFile) -replace $replaceVersionMicroRegex, "#define COMPONENT_VERSION_MICRO $componentVersionMicro" | Set-Content $componentVersionHeaderFile
+
+Write-Host "Updating $componentBuildNumberHeaderFile with version $BuildNumber"
+(Get-Content $componentBuildNumberHeaderFile) -replace $replaceBuildNumberRegex, "#define VERSION_INT $BuildNumber" | Set-Content $componentBuildNumberHeaderFile
diff --git a/build-scripts/build-solution.py b/build-scripts/build-solution.py
new file mode 100644
index 0000000..c1f1448
--- /dev/null
+++ b/build-scripts/build-solution.py
@@ -0,0 +1,153 @@
+#
+# Copyright 2024 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import os
+import subprocess
+import argparse
+
+# map to handle the dependencies location for the project
+#  the key is the script parameter name
+#  the value is a pair
+#    1) argument to pass to msbuild (the referenced property in vcxproj/props)
+#    2) the help text to display when help is invoked for the current script
+artifact_map = {'maxsdk':('MaxSDK', 'The path location for the \'MaxSDK\' folder.'),
+                'qtinstall':('QtInstall', 'The Qt reference version from QtVsTools (aka \'Qt Installation\').'),
+                'materialx':('MaterialXDir', 'The path location for the 3ds Max MaterialX material plugin folder.'),
+                'googletest':('GoogleTestDir', 'The path location for the \'gtest\' folder.'),
+                'pyopengl':('PyOpenGLDir', 'The path location for the \'OpenGL\' Python module (PyOpenGL).'),
+                'maxusddevkit':('MaxUsdDevKit', 'The path location for the 3ds Max USD \'devkit\'.'),
+                'spdlog':('SpdlogInc', 'The path location for \'spdlog\' include folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'python':('PythonLocation', 'The path location for the \'Python\' folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'pyside':('PySideDir', 'The path location for the \'PySide6\' Python module. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'shiboken':('PySideShibokenDir', 'The path location for the \'shiboken6\' Python module. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'ufeinc':('UfeInc', 'The path location for the \'Ufe\' include folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'ufelib':('UfeLib', ' The path location for the \'Ufe\' lib folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'usdufe':('UsdUfeDir', 'The path location for the \'UsdUfe\' folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'openusd':('PxrUsdRoot', 'The path location for the \'OpenUSD\' folder. If not provided, using the path from the \'devkit\' if the \'maxusddevkit\' option is provided.'),
+                'tbb':('TBBDir', 'The path location for the \'TBB\' folder. If not provided, using the path from the \'OpenUSD\' if the \'openusd\' or \'maxusddevkit\' option is provided.'),
+                'boostinc':('BoostInc', 'The path location for the \'Boost\' include folder. If not provided, using the path from the \'OpenUSD\' if the \'openusd\' or \'maxusddevkit\' option is provided.'),
+                'boostlib':('BoostLib', ' The path location for the \'Boost\' lib folder. If not provided, using the path from the \'OpenUSD\' if the \'openusd\' or \'maxusddevkit\' option is provided.')}
+
+def parse_arguments() -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("configuration", 
+                        nargs='?',
+                        type=str.lower,
+                        choices=['release', 'hybrid'],
+                        default='release',
+                        help="The build configuration type.")
+    parser.add_argument("target", choices=[2022, 2023, 2024, 2025, 2026], help="The 3ds Max version to target.", type=int)
+    parser.add_argument("-b", "--build", help="The build number coming from the pipeline.", default=0, type=int)
+    parser.add_argument("-v", "--version", help="The 3ds Max USD component version being built.", default='0.0.0')
+    parser.add_argument("-w", "--warnaserror", help="Enable the compiler to treat all warnings as errors.", action='store_true')
+    parser.add_argument("-r", "--rebuild", help="Rebuild the project.", action='store_true')
+    parser.add_argument("-d", "--distrib", help="Prepare for redistribution. Write component version in source headers.", action='store_true')
+    parser.add_argument("-p", "--package", help="Prepare the package folder after build.", action='store_true')
+    # parse arguments to set the artifact specific paths if any
+    for arg, data in artifact_map.items() :
+        parser.add_argument(f"--{arg}", help=data[1])
+    return parser.parse_args()
+
+def get_script_folder() -> str :
+     return os.path.dirname(os.path.abspath(__file__))
+
+def build_command(args:argparse.Namespace) -> list:
+    # path to build-scripts
+    swd = get_script_folder()
+    # set up the build environment
+    cmd = [swd + "\\configure-vsdevcmd.bat"]
+    if args.target == 2022:
+        # 3ds Max 2022 is expected to be compiled with VS2017 and winsdk 10.0.17134.0
+        # Visual Studio 2019 can be used as long as VS2017 tooling is available
+        #cmd.append("2017")
+        #cmd.append("10.0.17134.0")
+        cmd.append("2019")
+    elif args.target == 2026:
+        cmd.append("2022")
+    else:
+        cmd.append("2019")
+
+    # append the build command
+    cmd.append("&&")
+
+    cmd.append('msbuild.exe')
+    cmd.append(swd + "\\..\\src\\usd-component.sln")
+
+    if args.rebuild:
+        cmd.append('/t:rebuild')
+    if args.warnaserror:
+        cmd.append('/warnaserror')
+    cmd.append(f'/p:Configuration={args.configuration}')
+    cmd.append(f'/p:Platform=x64')
+    if args.distrib:
+        cmd.append(f'/p:BuildType=jenkins')
+    cmd.append(f'/p:VersionTarget={args.target}')
+    cmd.append(f'/p:BuildNumber={args.build}')
+    cmd.append(f'/p:ComponentVersion={args.version}')
+
+    # parse the artifacts variable option list 
+    args_dict = vars(args)
+    for arg, data in artifact_map.items() :
+        if args_dict[arg] is not None:
+            cmd.append(f'/p:{data[0]}={args_dict[arg]}')
+
+    return cmd
+
+def build_component(args:argparse.Namespace):
+    cmd = build_command(args)
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
+    print(f"Launching build process\n{proc.args}")
+    for raw_line in proc.stdout:
+        print(raw_line, end='')
+    proc.wait()
+    return proc.returncode == 0
+
+def package(config:str, target:int, version:str, build:int):
+    # path to build-scripts
+    swd = get_script_folder()
+    # set up the build environment
+    cmd = ['powershell',
+           '-ExecutionPolicy',
+           'ByPass',
+           '-File',
+           swd + "\\Prepare-BinPackage.ps1",
+           '-SourceFolder',
+           f'{swd}\\..\\build\\bin\\x64\\{config}\\usd-component-{target}',
+           '-DestinationFolder',
+           f'{swd}\\..\\package\\3dsmax-usd-{target}',
+           '-ComponentVersion',
+           version,
+           '-TargetVersion',
+           str(target),
+           '-BuildNumber',
+           str(build)]
+    
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
+    print(f"Launching packaging process\n{proc.args}")
+    for raw_line in proc.stdout:
+        print(raw_line, end='')
+    proc.wait()
+    return proc.returncode == 0
+    
+def main():
+    args = parse_arguments()
+    if not build_component(args):
+        exit(1)
+    if args.package:
+        if not package(args.configuration, args.target, args.version, args.build):
+            exit(1)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/build-scripts/configure-vsdevcmd.bat b/build-scripts/configure-vsdevcmd.bat
new file mode 100644
index 0000000..766f268
--- /dev/null
+++ b/build-scripts/configure-vsdevcmd.bat
@@ -0,0 +1,137 @@
+::
+:: Copyright 2023 Autodesk
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+@echo off
+
+goto :ParseArgs
+
+:Usage
+    echo.
+    echo Usage:
+    echo   %~nx0 ^<vs_version^> [winsdk_version]
+    echo. 
+    echo   vs_version       Visual Studio version ^<2012^|2015^|2017^|2019^|latest^>
+    echo                    latest: Selects the latest available VS 2017 or greater
+    echo. 
+    echo   winsdk_version   ^(optional^) The Windows SDK version to use
+    echo                    If unspecified, let Visual Studio configure the default version.
+    echo                    Ignored (not supported) for VS 2012.
+    echo.
+    echo Configures the developer command prompt for Visual Studio.
+    echo If installed, uses the latest compatible version of Build Tools for Visual Studio ^(minimal installation^).
+    echo Otherwise, uses the specified version of Visual Studio ^(full installation^).
+    echo. 
+    echo Only supports Build Tools for VS 2017 or greater.
+    echo Build Tools for Visual Studio only supports toolset versions v140 or greater.
+    echo. 
+    echo Returns non-zero on error.
+    echo. 
+    echo Examples: 
+    echo   %~nx0 latest
+    echo   %~nx0 2022
+    echo   %~nx0 2019 
+    echo   %~nx0 2017 10.0.17134.0
+    echo. 
+    exit  /b 1
+
+:ParseArgs
+
+set VS_VERSION=%~1
+for %%v in ("" "2017" "2019" "2022" "latest") do (
+    if /I "%VS_VERSION%"=="%%~v" goto :Continue
+)
+echo ERROR: vs_version '%VS_VERSION%' is not supported
+goto :Usage
+
+:Continue
+
+if "%VS_VERSION%" == "" (
+    set VS_VERSION=latest
+)
+
+set WINSDK_VERSION=%~2
+
+REM Additional setup for VS 2017 or greater
+set "VSWHERE_LATEST_CMD="%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -prerelease -latest"
+
+REM Select Visual Studio version
+if "%VS_VERSION%" GEQ "2015" goto :BuildToolsLatest
+goto :%VS_VERSION%
+
+:BuildToolsLatest
+REM Find latest installation of Build Tools for Visual Studio (2017 or greater) (tested with 2019)
+for /f "tokens=*" %%i in ('%VSWHERE_LATEST_CMD% -products Microsoft.VisualStudio.Product.BuildTools -property productPath') do (
+    set VSDEVCMD_PATH=%%~dpiVsDevCmd.bat
+)
+if not exist "%VSDEVCMD_PATH%" (
+    echo Build Tools for Visual Studio is not installed. Using full Visual Studio installation.
+    goto :%VS_VERSION%
+)
+for /f "tokens=*" %%i in ('%VSWHERE_LATEST_CMD% -products Microsoft.VisualStudio.Product.BuildTools -property installationVersion') do (
+    set VS_LATEST_VERSION=%%i
+)
+if "%VS_LATEST_VERSION:~0,2%" GEQ "16" (
+    if "%WINSDK_VERSION%" NEQ "" set "WINSDK_VERSION=-winsdk=%WINSDK_VERSION%"
+)
+call "%VSDEVCMD_PATH%" %WINSDK_VERSION%
+goto :End
+
+:latest
+REM Find latest installation of Microsoft Visual Studio 2017 or greater
+for /f "tokens=*" %%i in ('%VSWHERE_LATEST_CMD% -property installationPath') do set VS_PATH=%%i
+if not exist "%VS_PATH%" (
+    echo ERROR: Can't find latest installation of Visual Studio 2017 or greater
+    exit /b 2
+)
+for /f "tokens=*" %%i in ('%VSWHERE_LATEST_CMD% -property installationVersion') do (
+    set VS_LATEST_VERSION=%%i
+)
+if "%VS_LATEST_VERSION:~0,2%" GEQ "16" (
+    if "%WINSDK_VERSION%" NEQ "" set "WINSDK_VERSION=-winsdk=%WINSDK_VERSION%"
+)
+call "%VS_PATH%\VC\Auxiliary\Build\vcvarsall.bat" amd64 %WINSDK_VERSION%
+goto :End
+
+:2022
+set VS_VERSION_RANGELO=17.0
+set VS_VERSION_RANGEHI=17.9
+goto :vswhere_vcvarsall
+
+:2019
+set VS_VERSION_RANGELO=16.0
+set VS_VERSION_RANGEHI=17.0
+goto :vswhere_vcvarsall
+
+:2017
+set VS_VERSION_RANGELO=15.0
+set VS_VERSION_RANGEHI=16.0
+goto :vswhere_vcvarsall
+
+:vswhere_vcvarsall
+REM Use vswhere to find Microsoft Visual Studio installation
+for /f "tokens=*" %%i in ('%VSWHERE_LATEST_CMD% -version ^[%VS_VERSION_RANGELO%^,%VS_VERSION_RANGEHI%^) -property installationPath') do set VS_PATH=%%i
+if not exist "%VS_PATH%" (
+    echo ERROR: Can't find Visual Studio 2017 installation
+    exit /b 2
+)
+call "%VS_PATH%\VC\Auxiliary\Build\vcvarsall.bat" amd64 %WINSDK_VERSION%
+
+:End
+
+set vserror=%errorlevel%
+if "%vserror%" NEQ "0" (
+    echo ERROR: Can't configure developer command prompt for Visual Studio
+    exit /b %vserror%
+)
diff --git a/build-scripts/utility/outputSplineToCpp.ms b/build-scripts/utility/outputSplineToCpp.ms
new file mode 100644
index 0000000..91c44d0
--- /dev/null
+++ b/build-scripts/utility/outputSplineToCpp.ms
@@ -0,0 +1,38 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+-- This script is used to convert a spline object to CPP code.
+-- This is used to create the viewport icon for the USDStageObject.
+spl = selection[1]
+for s = 1 to (numsplines spl) do
+(
+	format "\n//Spline %\n" s
+	format "spline = baseShape.NewSpline();\n"
+	for k = 1 to (numknots spl s) do 
+	(
+		p = (getKnotPoint spl s k)
+		format "p = Point3(%,%,0.0);\n" p[1] p[2]
+		inVec = (getInVec spl s k)
+		format "in = Point3(%,%,0.0);\n" inVec[1] inVec[2]
+		outVec = (getOutVec spl s k)
+		format "out = Point3(%,%,0.0);\n" outVec[1] outVec[2]
+		format "k.SetKnot(p);\n"
+		format "k.SetInVec(in);\n"
+		format "k.SetOutVec(out);\n"
+		format "spline->AddKnot(k);\n"
+	)
+	format "spline->SetClosed();\n"
+)
\ No newline at end of file
diff --git a/doc/CLA/AutodeskFormCorpContribAgmtForOpenSource.pdf b/doc/CLA/AutodeskFormCorpContribAgmtForOpenSource.pdf
new file mode 100644
index 0000000..996005d
Binary files /dev/null and b/doc/CLA/AutodeskFormCorpContribAgmtForOpenSource.pdf differ
diff --git a/doc/CLA/AutodeskFormIndContribAgmtForOpenSource.pdf b/doc/CLA/AutodeskFormIndContribAgmtForOpenSource.pdf
new file mode 100644
index 0000000..6fb99bc
Binary files /dev/null and b/doc/CLA/AutodeskFormIndContribAgmtForOpenSource.pdf differ
diff --git a/doc/CONTRIBUTING.md b/doc/CONTRIBUTING.md
new file mode 100644
index 0000000..2981778
--- /dev/null
+++ b/doc/CONTRIBUTING.md
@@ -0,0 +1,36 @@
+# Contributing to USD For 3ds Max
+
+## Contributor License Agreement #
+Before contributing code to this project, we ask that you sign a Contributor License Agreement (CLA).
+
++ [AutodeskFormCorpContribAgmtForOpenSource.pdf](CLA/AutodeskFormCorpContribAgmtForOpenSource.pdf) please sign this one for corporate use
++ [AutodeskFormIndContribAgmtForOpenSource.pdf](CLA/AutodeskFormIndContribAgmtForOpenSource.pdf) please sign this one if you're an individual contributor
+
+The documents include instructions on where to send the completed forms to.  Once a signed form has been received you will be able to submit pull requests.
+
+
+## Filing Issues
+
+### Suggestions
+
+The USD for 3ds Max project is meant to evolve with feedback - the project and its users greatly appreciate any thoughts on ways to improve the design or features. Please use the `enhancement` tag to specifically denote issues that are suggestions - this helps us triage and respond appropriately.
+
+### Bugs
+
+As with all pieces of software, you may end up running into bugs. Please submit bugs as regular issues on GitHub - 3ds Max developers are regularly monitoring issues and will prioritize and schedule fixes.
+
+The best bug reports include a detailed way to predictably reproduce the issue, and possibly even a working example that demonstrates the issue.
+
+## Contributing Code
+
+The USD for 3ds Max project accepts and greatly appreciates contributions. The project follows the [fork & pull](https://help.github.com/articles/using-pull-requests/#fork--pull) model for accepting contributions.
+
+It is highly recommended that an issue be logged on GitHub before any work is started.  This will allow for early feedback from other developers and avoid multiple parallel efforts.
+
+### Pull Requests
+
+When contributing code, please also include appropriate tests as part of the pull request, and follow the same comment and coding style as the rest of the project. Take a look through the existing code for examples of the testing and style practices the project follows. Also read and adhere to the the [Coding guidelines](CodingGuidelines.md), many of which are enforced by clang-format checks.
+
+All development should happen against the [dev](https://github.com/Autodesk/3dsmax-usd/tree/dev) branch of the repository. Please make sure the base branch of your pull request is set to the dev branch when submitting your pull request.
+
+All pull requests require at least one approving code reviewer.
diff --git a/doc/CodingGuidelines.md b/doc/CodingGuidelines.md
new file mode 100644
index 0000000..449f71e
--- /dev/null
+++ b/doc/CodingGuidelines.md
@@ -0,0 +1,238 @@
+
+This document outlines coding guidelines for contributions to the  [3dsmax-usd](https://github.com/autodesk/3dsmax-usd) project.
+
+# C++ Coding Guidelines
+
+Many of the C++ coding guidelines below are validated and enforced through the use of `clang-format` which is provided by the [LLVM project](https://github.com/llvm/llvm-project). Since the adjustments made by `clang-format` can vary from version to version, we standardize this project on a single `clang-format` version to ensure consistent results for all contributions made to 3dsmax-usd.
+
+|                      | Version | Source Code | Release |
+|:--------------------:|:-------:|:-----------:|:-------:|
+|  `clang-format`/LLVM |  10.0.0 | [llvmorg-10.0.0 Tag](https://github.com/llvm/llvm-project/tree/llvmorg-10.0.0) | [LLVM 10.0.0](https://github.com/llvm/llvm-project/releases/tag/llvmorg-10.0.0) |
+
+## Foundation/Critical
+### License notice
+Every file should start with the Apache 2.0 licensing statement:
+```cpp
+// Licensed under the Apache License, Version 2.0 (the “License”);
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an “AS IS” BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+```
+
+### Copyright notice
+* Every file should contain at least one Copyright line at the top, which can be to Autodesk or the individual/company that contributed the code.
+* Multiple copyright lines are allowed, and if a significant new contribution is made to an existing file then an individual or company can append a new line to the copyright section.
+* The year the original contribution is made should be included but there is no requirement to update this every year.
+* There is no requirement that an Autodesk copyright line should be in all files. If an individual or company contributes new files they do not have to add both their name and Autodesk's name.
+* If existing code is being refactored or moved within the repo then the original copyright lines should be maintained. You should only append a new copyright line if significant new changes are added. For example, if some utility code is being moved from a plugin into a common area, and the work involved is only minor name changes or include path updates, then the original copyright should be maintained. In this case, there is no requirement to add a new copyright for the person that handled the refactoring.
+
+### #pragma once vs include guard
+The project makes use of `#pragma once` to avoid files being `#include’d` multiple times (which can cause duplication of definitions & compilation errors). While it is a non-standard and non-portable extension, it is widely supported. It is also a choice aligned with the 3ds Max SDK. The platform and compiler used (Windows/VS) fully support the preprocessor option.
+
+### Naming (file, type, variable, constant, function, namespace, macro, template parameters, schema names)
+**General Naming Rules**
+MaxUsd strives to use “camel case” naming. That is, each word is capitalized, except possibly the first word:
+* UpperCamelCase
+* lowerCamelCase
+
+While underscores in names (_) (e.g., as separator) are not strictly forbidden, they are strongly discouraged.
+Optimize for readability by selecting names that are clear to others (e.g., people on different teams.)
+Use names that describe the purpose or intent of the object. Do not worry about saving horizontal space. It is more important to make your code easily understandable by others. Minimize the use of abbreviations that would likely be unknown to someone outside your project (especially acronyms and initialisms).
+
+**File Names**
+Filenames should be UpperCamelCase and should not include underscores (_) or dashes (-).
+C++ files should end in .cpp and header files should end in .h.
+In general, make your filenames as specific as possible. For example:
+```
+StageData.cpp
+StageData.h
+```
+
+**Type Names**
+All type names (i.e., classes, structs, type aliases, enums, and type template parameters) should use UpperCamelCase, with no underscores. For example:
+```cpp
+class MaxUsdStageData;
+class ImportData;
+enum Roles;
+```
+
+**Variable Names**
+**Class/Struct Data Members**
+**Constant Names**
+All variables, data member and constant names, including function parameters and data members should use lowerCamelCase, with no underscores. For example:
+```cpp
+const INode* parentNode;
+const MSTR& rayDirection
+bool* drawRenderPurpose;
+```
+
+**Function/Method Names**
+All functions should be UpperCamelCase. This avoids inconsistencies with the 3ds Max SDK. For example:
+```cpp
+MSTR Name() const override;
+void RegisterExitCallback();
+```
+
+**Namespace Names**
+Namespace names should be UpperCamelCase. Top-level namespace names are based on the project name.
+```cpp
+namespace MaxUsd {}
+```
+
+**Enumerator Names**
+Enumerators (for both scoped and unscoped enums) should be UpperCamelCase.
+
+The enumeration name, `StringPolicy` is a type and therefore mixed case.
+```cpp
+enum class StringPolicy
+{
+  StringOptional,
+  StringMustHaveValue
+};
+```
+
+**Macro Names**
+In general, macros should be avoided (see [Modern C++](https://docs.google.com/document/d/1Jvbpfh2WNzHxGQtjqctZ1K1lnpaAtHOUwm0kmmEcxjY/edit#heading=h.ynbggnv41p3) ). However, if they are absolutely needed, macros should be all capitals, with words separated by underscores.
+```cpp
+#define ROUND(x) …
+#define PI_ROUNDED 3.0
+```
+
+### Documentation (class, method, variable, comments)
+* [Doxygen ](http://www.doxygen.nl/index.html) will be used to generate documentation from MaxUsd C++ sources.
+* Doxygen tags must be used to document classes, function parameters, function return values, and thrown exceptions.
+* The MaxUsd project does require the use of any Doxygen formatting style ( [Doxygen built-in formatting](http://www.doxygen.nl/manual/commands.html) )
+* Comments for users of classes and functions must be written in headers files. Comments in definition files are meant for contributors and maintainers.
+
+### Namespaces
+
+#### In header files (e.g. .h)
+
+* **Required:** to use fully qualified namespace names. Global scope using directives are not allowed.  Inline code can use using directives in implementations, within a scope, when there is no other choice (e.g. when using macros, which are not namespaced).
+
+```cpp
+// In aFile.h
+inline PXR_NS::UsdPrim prim() const
+{
+    PXR_NAMESPACE_USING_DIRECTIVE
+    TF_VERIFY(item != nullptr);
+    return item->prim();
+}
+```
+
+#### In implementation files (e.g. .cpp)
+
+* **Recommended:** to use fully qualified namespace names, unless clarity or readability is degraded by use of explicit namespaces, in which case a using directive is acceptable.
+* **Recommended:** to use the existing namespace style, and not make gratuitous changes. If the file is using explicit namespaces, new code should follow this style, unless the changes are so significant that clarity or readability is degraded.  If the file has one or more using directives, new code should follow this style.
+
+### Include directive
+For source files (.cpp) with an associated header file (.h) that resides in the same directory, it should be `#include`'d with double quotes and no path.  This formatting should be followed regardless of with whether the associated header is public or private. For example:
+```cpp
+// In foobar.cpp
+#include "foobar.h"
+```
+
+All included public header files from outside and inside the project should be `#include`’d using angle brackets. For example:
+```cpp
+#include <pxr/base/tf/stringUtils.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+```
+
+Private project’s header files should be `#include`'d using double quotes, and a relative path. Private headers may live in the same directory or sub-directories, but they should never be included using "._" or ".._" as part of a relative path. For example:
+```cpp
+#include "privateUtils.h"
+#include "pvt/helperFunctions.h"
+```
+
+### Include order
+Headers should be included in the following order, with each section separated by a blank line and files sorted alphabetically:
+
+1. Related header
+2. All private headers
+3. All public headers from this repository (3dsmax-usd)
+4. UsdUfe library headers
+5. Pixar + USD headers
+6. Autodesk + 3ds Max headers
+7. Other libraries' headers
+8. C++ standard library headers
+9. C system headers
+10. Conditional includes
+
+```cpp
+#include "MaxSceneBuilder.h"
+
+#include "private/util.h"
+
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+
+#include <usdUfe/ufe/UsdSceneItem.h>
+
+#include <pxr/base/tf/pyPolymorphic.h>
+
+#include <GetCOREInterface.h>
+#include <maxscript/maxscript.h>
+
+#include <string>
+
+#ifdef IS_MAX2023_OR_GREATER
+#include <Graphics/UpdateDisplayContext.h>
+#include <Graphics/InstanceDisplayGeometry.h>
+#endif
+```
+
+### Conditional compilation (3ds Max, USD, UFE version)
+**3ds Max**
+* A series of `IS_MAX20XX_OR_GREATER` defines are available (see `MaxUsd/Utilities/MaxSupportUtils.h`)
+* `MAX_RELEASE` is the consistent macro to test 3ds Max version (see `maxsdk/include/plugapi.h` from the 3ds Max SDK)
+
+**UFE**
+* Each version of Ufe contains a features available define (in ufe.h) such as `UFE_V4_FEATURES_AVAILABLE` that can be used for conditional compilation on code depending on Ufe Version.
+
+**USD**
+* `PXR_VERSION` is the macro to test USD version (`PXR_MAJOR_VERSION` * 10000 + `PXR_MINOR_VERSION` * 100 + `PXR_PATCH_VERSION`)
+
+Respect the minimum supported version for 3ds Max and USD stated in [build.md](https://github.com/Autodesk/3dsmax-usd/dev/doc/build.md) .
+
+### std over boost
+Recent extensions to the C++ standard introduce many features previously only found in [boost](http://boost.org). To avoid introducing additional dependencies, developers should strive to use functionality in the C++ std over boost. If you encounter usage of boost in the code, consider converting this to the equivalent std mechanism. 
+Our library currently has the following boost dependencies:
+* `boost::python`
+
+## Modern C++
+Our goal is to develop [3dsmax-usd](https://github.com/autodesk/3dsmax-usd) following modern C++ practices. We’ll follow the [C++ Core Guidelines](http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines) and pay attention to:
+* `using` (vs `typedef`) keyword
+* `virtual`, `override` and `final` keyword
+* `default` and `delete` keywords
+* `auto` keyword
+* initialization - `{}`
+* `nullptr` keyword
+* …
+
+## Diagnostic Facilities
+
+Developers are encouraged to use TF library diagnostic facilities in 3ds Max USD. Please follow below guideline for picking the correct facility: https://graphics.pixar.com/usd/docs/api/page_tf__diagnostic.html
+
+In MaxUsd, `DiagnosticDelegate` converts TF diagnostics into native 3ds Max infos, warnings, and errors. The environment flag `MAXUSD_SHOW_FULL_DIAGNOSTICS`, controls the granularity of TF error/warning/status messages being displayed in 3ds Max:
+
+e.g
+```
+[2024-05-23 12:06:53.623] [USDImport] [warning] Unexpected input type or mapped value - normal3f:(0, 0, 1):normal
+```
+vs
+```
+[2024-05-23 12:06:53.623] [USDImport] [warning] Unexpected input type or mapped value - normal3f:(0, 0, 1):normal -- Warning in usd_material_reader.output_max_material at line 463 of d:\usd-component-2024/contents/scripts//materials\usd_material_reader.py
+```
+
+# Coding guidelines for Python
+We are adopting the [PEP-8](https://www.python.org/dev/peps/pep-0008) style for Python Code with the following modification:
+* Mixed-case for variable and function names are allowed 
+
+[Pylint](https://www.pylint.org/) is recommended for automation.
diff --git a/doc/LICENSE.md b/doc/LICENSE.md
new file mode 100644
index 0000000..11069ed
--- /dev/null
+++ b/doc/LICENSE.md
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
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+   the terms of any separate license agreement you may have executed
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+   comment syntax for the file format. We also recommend that a
+   file or class name and description of purpose be included on the
+   same "printed page" as the copyright notice for easier
+   identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/doc/build.md b/doc/build.md
new file mode 100644
index 0000000..580f39b
--- /dev/null
+++ b/doc/build.md
@@ -0,0 +1,251 @@
+
+
+
+
+
+
+# Building
+
+## Getting and Building the Code
+### Download the source code
+
+Start by cloning the repository:
+```
+git clone https://github.com/Autodesk/3dsmax-usd.git
+cd 3dsmax-usd
+```
+##### Repository Layout
+| Location | Description |
+|--|--|
+| additional_includes | Additional include files required to build the component (from 3ds Max restricted SDK) |
+| samples | 3dsmax-usd sample plugins exposing its extensibility feature |
+| src | The source folder for the 3dsmax-usd component |
+
+### Dependencies
+Multiple dependencies are required in order to build the component. Take the time to first set up your build environment properly.
+* [System Prerequisites](#system-prerequisites)
+* [OpenUSD](#download-and-build-openusd)
+* [UFE](#universal-front-end-ufe)
+* [Python](#python-modules)
+* [MaterialX](#materialx-plugin-for-3ds-max)
+* [Other dependencies](#other-dependencies)
+
+#### 1. System Prerequisites
+
+Before building the project, consult the [3ds Max SDK requirements](https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=sdk_requirements) to ensure you use the recommended version of compiler, operating system and Qt version. You will need to need a copy of the [3ds Max SDK](https://aps.autodesk.com/developer/overview/3ds-max) headers and libraries as well (direct link to [3ds Max 2025](https://autodesk-adn-transfer.s3.us-west-2.amazonaws.com/ADN+Extranet/M%26E/Max/Autodesk+3ds+Max+2025/SDK_3dsMax2025.msi) and [3ds Max 2024](https://autodesk-adn-transfer.s3.us-west-2.amazonaws.com/ADN+Extranet/M%26E/Max/Autodesk+3ds+Max+2024/SDK_3dsMax2024.msi)).
+
+> For 3ds Max 2025, we suggest to use Microsoft Visual Studio 2019 (Community or better), version 16.10.4, C++ Platform Toolset v142, Windows Platform SDK 10.0.19041.0. 
+
+Consult the [3ds Max Python API](https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=MAXDEV_Python_what_s_new_in_3ds_max_python_api_html) reference to learn more on the Python version to use.
+
+> The Microsoft Visual Studio extension 'Qt VS Tools' must be installed and properly configured with the Qt version used by 3ds Max. Make sure to reference the selected *version* name in '*Extensions->Qt VS Tools->Qt Versions*'.
+>
+> 3ds Max Qt versions can be found on the https://github.com/autodesk-forks/qt5/releases. These versions contain modifications to the Qt codebase which are specific to 3ds Max. No need to build your own version if you are not making changes to Qt.
+
+<br>
+
+##### Simplified dependencies setup using the `devkit`
+Fetching all dependencies can be long and tedious. A `devkit` archive is made available inside the 3ds Max USD plugin installation. The `devkit` includes all the 3ds Max USD SDK files (includes and libs), the samples and the minimal dependencies required to compile the samples (or your extensibility plugin to the 3ds Max USD plugin). Additionally, the `devkit` contains additional dependencies required to compile the full 3ds Max USD plugin.
+
+The `devkit` can be found in the folder `Content` of an installed 3ds Max USD plugin (https://help.autodesk.com/view/3DSMAX/2025/ENU/?guid=GUID-1A33A64B-6829-4806-98FC-9B25E4ED47FC).
+
+> The `devkit` archive is available as a separate file for the initial release on GitHub (v0.9.0). It can be found along the [tag assets](https://github.com/Autodesk/3dsmax-usd/releases/tag/v0.9.0).
+
+The `devkit` includes:
+
+ - include files and libs for the 3ds Max USD SDK (the core MaxUsd library enabling third-party developers to extend the 3ds Max USD plugin); 
+ - include files and libs for OpenUSD.  The DLLs for OpenUSD are to be found in the installed 3ds Max USD plugin. The `Pixar_USD` folder from the `devkit` contains a Python script to copy those missing DLLs; 
+ - include files and binaries (libs and dlls) for UFE and USDUFE;
+ - include files and libs for Python, PySide and Shiboken. The Python and PySide/Shiboken DLLs are not required to get a working 3ds Max USD component as they are provided by 3ds Max already.
+
+The `devkit` is required to build the 3ds Max USD plugin as it requires to link to Python, PySide/Shiboken, UFE and USDUFE and those dependencies cannot be recompiled on your own for compatibility reasons with 3ds max. You can either use OpenUSD from the `devkit` or rebuild your own as explained in the next section.
+
+> * Make sure to extract the `devkit` archive from the 3ds Max USD plugin to your development folder before trying to make use of the `devkit` .
+> * Once extracted, execute the Python script `copy_missing_DLLs_found_in_the_official_installation.py` found in the `Pixar_USD` folder to recreate a completed OpenUSD prebuilt library.
+
+#### 2. Download and Build OpenUSD 
+
+ The `devkit` available inside the 3ds Max USD plugin installation provides a prebuild version of OpenUSD. It initially contains only the include files and libs for OpenUSD. The DLLs for OpenUSD are to be found in the installed 3ds Max USD plugin. To get a full and usable library, a Python script, to be found in the `Pixar_USD` folder from the `devkit`, must be executed to copy those missing DLLs back into the `devkit`. 
+
+The OpenUSD library can also be rebuilt to fit with your needs. See OpenUSD's official github page for instructions on how to build USD: https://github.com/PixarAnimationStudios/OpenUSD .  It is important the recommended `OpenUSD` commit ID or tag from the table below is used: 
+
+> **note**: the OpenUSD library included in the 3ds Max USD plugin was compiled using those options : `--python --alembic --hdf --materialx`.
+
+|               |      ![](images/logo-horizontal-color.svg)          | USD version used in 3ds Max | USD source for MaxUsd |
+|:------------: |:---------------:                  |:------------------------:|:-------------------------:|
+|  CommitID/Tags | Officially supported:<br> [v21.11](https://github.com/PixarAnimationStudios/OpenUSD/tree/v21.11), [v22.11](https://github.com/PixarAnimationStudios/OpenUSD/tree/v22.11), [v23.11](https://github.com/PixarAnimationStudios/OpenUSD/tree/v23.11)| 3ds Max 2022 = v21.11<br>3ds Max 2023 = v21.11<br>3ds Max 2024 = v22.11<br>3ds Max 2025 = v23.11<br>Codename Devi = v24.05 | [v21.11-MaxUsd-Public](https://github.com/autodesk-forks/USD/tree/v21.11-MaxUsd-Public)<br>[v22.11-MaxUsd-Public](https://github.com/autodesk-forks/USD/tree/v22.11-MaxUsd-Public)<br>[v23.11-MaxUsd-Public](https://github.com/autodesk-forks/USD/tree/v23.11-MaxUsd-Public) |
+
+The OpenUSD component has dependencies that are being reused to build the 3ds Max USD component (boost and TBB are dependencies to the 3ds Max USD) . Their source files are automatically fetched and built by the build script of OpenUSD. The table below reports on the various dependencies being used by the compiled version of OpenUSD found in the 3ds Max USD plugin.
+
+| Dependency       | 3ds Max 2022 | 3ds Max 2024 | 3ds Max 2024 | 3ds Max 2025 |
+|:----------------:|:------------:|:------------:|:------------:|:------------:|
+| zlib             | 1.2.13 | 1.2.13 | 1.2.13 | 1.2.13     |
+| boost            | 1.70.0       | 1.70.0       | 1.76.0       | 1.81.0       |
+| TBB              | tbb2018 (update 6)| tbb2018 (update 6)| tbb2019 (update 6)| tbb2020.3       |
+| HDF5             | 1.10.0 (patch 1)| 1.10.0 (patch 1)| 1.10.0 (patch 1)| 1.10.0 (patch 1) |
+| OpenEXR          | 2.3.0| 2.3.0| 2.5.2| 3.1.11       |
+| Alembic          | 1.7.10| 1.7.10| 1.7.10| 1.8.5       |
+| MaterialX        | 1.38.0| 1.38.0| 1.38.4| 1.38.8       |
+| OpenSubDiv       | 3.4.3| 3.4.3| 3.5.0| 3.5.1     |
+
+> :warning: Make sure that you don't have an older USD locations in your ```PATH``` and ```PYTHONPATH``` environment settings. ```PATH``` and ```PYTHONPATH``` are automatically adjusted inside the project to point to the correct USD location. See ```cmake/usd.cmake```.
+
+#### 3. Universal Front End (UFE)
+
+The Universal Front End (UFE) is a DCC-agnostic component that allows the 3ds Max USD component to browse and edit data in multiple data models. This allows 3ds Max to edit pipeline data such as USD, using UDSUFE.  UFE is developed as a separate binary component, and therefore versioned separately from 3ds Max.
+
+The UFE component v5.3.0 is being used.
+The UFE component was originally developed by the Autodesk Maya team.
+Reference documentation - https://help.autodesk.com/view/MAYADEV/2025/ENU/?guid=MAYA_API_REF_ufe_ref_index_html
+
+To build the 3ds Max USD component, you will need to use the UFE/USDUFE headers and libraries included in the `devkit`.
+
+#### 4. Python Modules
+
+The project exposes some Python APIs which rely on Qt bindings that are possible through the use of PySide6 (or PySide2) and its specific Qt binding library, Shiboken.
+
+For 3ds Max 2025 and greater, PySide6 6.5.3 is required. For 3ds Max 2022 to 2024, PySide2 5.15.1 is required. PySide2/6 are compiled in a custom way for 3ds Max, as such you can get the pre-built binaries in the `devkit`.
+
+The 3ds Max USD Plugin also requires PyOpenGL to make use of the OpenUSD UsdView tool. The module should already present in your Python environment if you have built OpenUSD.
+
+PyOpenGL can be downloaded using Python PIP with the following command: `pip install --user PyOpenGL==3.1.5`
+
+> :warning: Make sure there are no PySide6/2 Python modules installed in your '*site-packages*' folders. You might run into issues otherwise, as it will create conflicts with the 3ds Max packages.
+
+#### 5. MaterialX plugin for 3ds Max (optional)
+
+In order to have support for MaterialX materials inside 3ds Max, you will need to hook up the MaterialX plugin for 3ds Max to the project. The MaterialX Plugin is installed alongside USD for Autodesk 3ds Max Plugin. Instructions for installation can be found here: https://help.autodesk.com/view/3DSMAX/2025/ENU/?guid=GUID-1A33A64B-6829-4806-98FC-9B25E4ED47FC
+
+Once the 3ds Max USD plugin is installed, you will find the `MaterialX for 3ds Max` plugin located in `Contents\MaterialX_plugin`.
+
+#### 6. Other Dependencies
+
+| Dependency       | 3ds Max 2022 | 3ds Max 2023 | 3ds Max 2024 | 3ds Max 2025 | Link                                          |
+|:----------------:|:------------:|:------------:|:------------:|:------------:|:---------------------------------------------:|
+| spdlog           | 1.14.1       | 1.14.1       | 1.14.1       | 1.14.1       | https://github.com/gabime/spdlog              |
+| gtest            | 1.8.1        | 1.8.1        | 1.11.0       | 1.11.0       | https://github.com/google/googletest/releases |
+
+##### spdlog
+
+The project is only using the headers from this dependency. You can clone the git repository and locate the include folder (the include path is at the root of the repository).
+
+##### gtest
+GoogleTest is used to compile and execute the unit tests of the component. The library is not required to run the plugin inside 3ds Max. You need to build the dependency as it is not provided through the `devkit`.
+
+### Building
+#### General Information
+A Microsoft Visual Studio solution (`usd-component.sln`) for the 3ds Max USD component is provided in the `src\` folder. Make sure to fully read this section before trying to compile the component.
+
+The component can be built for multiple 3ds Max yearly releases (referred as a *target* version). The Visual Studio solution for the component only support one *target* build at a time.
+
+The solution creates a `build\bin\x64\<Hybrid|Release>\usd-component-<target>\` folder in which an Autodesk Application Plugin folder structure is constructed. The build folder can be directly referenced in the `ADSK_APPLICATION_PLUGINS` environment variable for 3ds Max to find and load the compiled plugin. More general information on the plugin packaging can found in the [3ds Max Developer Help](https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=packaging_plugins).
+
+Edit the file `src\3dsmax.common.settings.props` to set the *target* version (i.e. `<VersionTarget Condition="'$(VersionTarget)'==''">2025</VersionTarget>` to target 3ds Max 2025).
+
+Make sure the dependencies are prepared before launching the build. The next section is important to read to understand the expected structure.
+
+#### Plugin Dependency Setup
+Before starting to build the plugin, the component's dependencies location must be specified to the component's solution. A few options are possible (only use one of the options):
+
+* [_recommended option_] dependencies specific paths can be detailed in the props file `src\DependencyPathOverrides.props`; the paths specified using the props file will override the *defaults* from the component solution.
+
+* the component's Visual Studio solution expects a default directory structure has described below. If you are building the component for multiple _target_ version, this option might be preferable. 
+  * `artifacts` folder at the root level
+  * non-*target*-dependent dependencies can be placed in the `artifacts` folder:
+    * `artifacts\spdlog` (the include folder for `spdlog` is placed inside this `spdlog` folder)
+  * for each *target* version, a *target* folder (i.e. : `artifacts\2025` is needed for the remaining dependencies:
+	  * `artifacts\<target>\<target>_3dsmax-component-materialX`
+	  * `artifacts\<target>\gtest`
+	  * `artifacts\<target>\maxsdk`
+	  * `artifacts\<target>\Pixar_USD`
+	  * `artifacts\<target>\PyOpenGL`
+	  * `artifacts\<target>\PySide6\PySide6` (might be `PySide2` depending on the *target*)
+	  * `artifacts\<target>\PySide6\shiboken6`
+	  * `artifacts\<target>\PySide6\shiboken6_generator`
+	  * `artifacts\<target>\Python`
+	  * `artifacts\<target>\Qt`
+	  * `artifacts\<target>\ufe`
+	  * `artifacts\<target>\UsdUfe`
+
+* a Python build script (`build-scripts\build-solution.py`) is provided to launch the build from a command prompt. If not already described in `src\DependencyPathOverrides.props` or not using the default directory structure, the dependency paths can specified directly at the command prompt. This option might be easier to use if you are scripting your build procedure.
+
+The build script can be used by following these usage rules:
+
+	usage: build-solution.py [-h] [-b BUILD] [-v VERSION] [-w] [-r] [-d] [-p] [--maxsdk MAXSDK] [--qtinstall QTINSTALL]
+                         [--materialx MATERIALX] [--googletest GOOGLETEST] [--pyopengl PYOPENGL]
+                         [--maxusddevkit MAXUSDDEVKIT] [--spdlog SPDLOG] [--python PYTHON] [--pyside PYSIDE]
+                         [--shiboken SHIBOKEN] [--ufeinc UFEINC] [--ufelib UFELIB] [--usdufe USDUFE]
+                         [--openusd OPENUSD] [--tbb TBB] [--boostinc BOOSTINC] [--boostlib BOOSTLIB]
+                         [{release,hybrid}] {2022,2023,2024,2025,2026}
+
+	positional arguments:
+      {release,hybrid}      The build configuration type.
+      {2022,2023,2024,2025,2026}
+                            The 3ds Max version to target.
+    
+    optional arguments:
+      -h, --help            show this help message and exit
+      -b BUILD, --build BUILD
+                            The build number coming from the pipeline.
+      -v VERSION, --version VERSION
+                            The 3ds Max USD component version being built.
+      -w, --warnaserror     Enable the compiler to treat all warnings as errors.
+      -r, --rebuild         Rebuild the project.
+      -d, --distrib         Prepare for redistribution. Write component version in source headers.
+      -p, --package         Prepare the package folder after build.
+      --maxsdk MAXSDK       The path location for the 'MaxSDK' folder.
+      --qtinstall QTINSTALL
+                            The Qt reference version from QtVsTools (aka 'Qt Installation').
+      --materialx MATERIALX
+                            The path location for the 3ds Max MaterialX material plugin folder.
+      --googletest GOOGLETEST
+                            The path location for the 'gtest' folder.
+      --pyopengl PYOPENGL   The path location for the 'OpenGL' Python module (PyOpenGL).
+      --maxusddevkit MAXUSDDEVKIT
+                            The path location for the 3ds Max USD 'devkit'.
+      --spdlog SPDLOG       The path location for 'spdlog' include folder. If not provided, using the path from the
+                            'devkit' if the 'maxusddevkit' option is provided.
+      --python PYTHON       The path location for the 'Python' folder. If not provided, using the path from the 'devkit'
+                            if the 'maxusddevkit' option is provided.
+      --pyside PYSIDE       The path location for the 'PySide6' Python module. If not provided, using the path from the
+                            'devkit' if the 'maxusddevkit' option is provided.
+      --shiboken SHIBOKEN   The path location for the 'shiboken6' Python module. If not provided, using the path from the
+                            'devkit' if the 'maxusddevkit' option is provided.
+      --ufeinc UFEINC       The path location for the 'Ufe' include folder. If not provided, using the path from the
+                            'devkit' if the 'maxusddevkit' option is provided.
+      --ufelib UFELIB       The path location for the 'Ufe' lib folder. If not provided, using the path from the 'devkit'
+                            if the 'maxusddevkit' option is provided.
+      --usdufe USDUFE       The path location for the 'UsdUfe' folder. If not provided, using the path from the 'devkit'
+                            if the 'maxusddevkit' option is provided.
+      --openusd OPENUSD     The path location for the 'OpenUSD' folder. If not provided, using the path from the 'devkit'
+                            if the 'maxusddevkit' option is provided.
+      --tbb TBB             The path location for the 'TBB' folder. If not provided, using the path from the 'OpenUSD' if
+                            the 'openusd' or 'maxusddevkit' option is provided.
+      --boostinc BOOSTINC   The path location for the 'Boost' include folder. If not provided, using the path from the
+                            'OpenUSD' if the 'openusd' or 'maxusddevkit' option is provided.
+      --boostlib BOOSTLIB   The path location for the 'Boost' lib folder. If not provided, using the path from the
+                            'OpenUSD' if the 'openusd' or 'maxusddevkit' option is provided.
+
+For example, if you have:
+
+ - cloned the `3dsmax-usd` repository to `c:\dev\3dsmax-usd`
+ - you are targeting to build the plugin for 3ds Max 2025
+ - you have installed the Autodesk USD for 3ds Max 2025 application plugin, by default, to `C:\ProgramData\Autodesk\ApplicationPlugins\USD for 3ds Max 2025`
+ - extracted its `devkit` to `c:\dev\3dsmax-usd-devkit-2025` (the `devkit` archive would be found in `C:\ProgramData\Autodesk\ApplicationPlugins\USD for 3ds Max 2025\Contents`)
+ - execute the Python script `copy_missing_DLLs_found_in_the_official_installation.py` found in the `c:\dev\3dsmax-usd-devkit-2025\Pixar_USD` folder to recreate a completed OpenUSD prebuilt library
+ - installed the 3ds Max 2025 SDK, by default, to `C:\Program Files\Autodesk\3ds Max 2025 SDK`)
+ - Qt v6.5.3 is installed in `C:\Qt\6.5.3\msvc2019_64`
+ - PyOpenGL is installed in `C:\Users\myusername\AppData\Roaming\Python\Python311\site-packages`
+ - GoogleTest is installed in `c:\dev\googletest-distribution`
+
+You will have a command-line similar to the one below. Using the `devkit` reduces the amount of steps required to get to a state where the component can be built.
+
+	c:\dev\3dsmax-usd> \
+	python build-scripts\build-solution.py \
+	--maxusddevkit c:\dev\3dsmax-usd-devkit-2025 \
+	--googletest c:\dev\googletest-distribution \
+	--qtinstall c:\Qt\6.5.3\msvc2019_64 \
+	--maxsdk "c:\Program Files\Autodesk\3ds Max 2025 SDK\maxsdk" \
+	--materialx "c:\ProgramData\Autodesk\ApplicationPlugins\USD for 3ds Max 2025\Contents\MaterialX_plugin" \
+	--pyopengl C:\Users\myusername\AppData\Roaming\Python\Python311\site-packages -p release 2025
+
diff --git a/doc/images/3dsmax-usd.png b/doc/images/3dsmax-usd.png
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index 0000000..3b4a51d
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+++ b/doc/images/3dsmax-usd.png
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+size 1556605
diff --git a/doc/images/header.png b/doc/images/header.png
new file mode 100644
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+++ b/doc/images/header.png
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+</svg>
diff --git a/doc/images/pxr.png b/doc/images/pxr.png
new file mode 100644
index 0000000..91da6aa
--- /dev/null
+++ b/doc/images/pxr.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3c9258783eae35fc623e014d5cf1343693c3c0f41ed54631d21ee257a4206b44
+size 4070
diff --git a/samples/3dsmaxUsdSample.common.settings.props b/samples/3dsmaxUsdSample.common.settings.props
new file mode 100644
index 0000000..d4b91e1
--- /dev/null
+++ b/samples/3dsmaxUsdSample.common.settings.props
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+  xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <!-- Settings for 3dsmax component configurations -->
+  <PropertyGroup Label="Globals">
+    <IsProjectInDevTree>true</IsProjectInDevTree>
+    <IsProjectInDevTree Condition="!Exists('$(MSBuildThisFileDirectory)../src')">false</IsProjectInDevTree>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(IsProjectInDevTree)'=='true'">
+    <Import Project="$(MSBuildThisFileDirectory)..\src\DependencyPathOverrides.props" Condition="$(HasImportedCommonProps) != '1'"/>
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(IsProjectInDevTree)'=='false'">
+    <Import Project="$(MSBuildThisFileDirectory)\DependencyPathOverrides.props" Condition="$(HasImportedCommonProps) != '1'"/>
+  </ImportGroup>
+  <!-- Common properties -->
+  <PropertyGroup Label="Globals">
+    <RepoRootDir>$([System.IO.Path]::GetFullPath('$(MSBuildThisFileDirectory)\..\'))</RepoRootDir>
+
+    <!-- HasImportedCommonProps is used as a flag to tell propertysheets or vcxproj inheriting from that the 3dsmax.common.settings.props has already been imported before. Propersheets importing this can use to flag to ignore importing a duplicate of this props and avoid the MSB4011 warning during compilation -->
+    <HasImportedCommonProps>1</HasImportedCommonProps>
+    <VersionTarget Condition="'$(VersionTarget)'==''">2025</VersionTarget>    
+    <BuildDir>$(RepoRootDir)build\sample\</BuildDir>    
+    <ApplicationPluginsDir>$(BuildDir)\bin\$(Platform)\$(Configuration)\</ApplicationPluginsDir>
+    <PluginsRelDir>ApplicationPlugins\usd-component\Contents\bin\</PluginsRelDir>
+    <SrcDir>$(RepoRootDir)src\</SrcDir> 
+    <PluginSrcDir>$(RepoRootDir)src\sample\$(PluginsRelDir)\</PluginSrcDir>
+    <ContentsDir>$(ApplicationPluginsDir)$(ProjectName)</ContentsDir>
+    <LibDir>$(BuildDir)\lib\$(Platform)\$(Configuration)\$(VersionTarget)\</LibDir>
+    <!-- Artifacts location -->
+    <Artifacts Condition="'$(IsProjectInDevTree)'=='true'">$(RepoRootDir)artifacts\$(VersionTarget)\</Artifacts>
+    <Artifacts Condition="'$(IsProjectInDevTree)'=='false'">$(SolutionDir)\..\</Artifacts>
+    <SpdlogInc Condition="'$(MaxUsdDevKit)'!='' and '$(SpdlogInc)'==''">$(MaxUsdDevKit)\spdlog</SpdlogInc>
+    <SpdlogInc Condition="'$(SpdlogInc)'=='' and '$(IsProjectInDevTree)'=='true'">$(Artifacts)..\spdlog</SpdlogInc>
+    <SpdlogInc Condition="'$(SpdlogInc)'=='' and '$(IsProjectInDevTree)'=='false'">$(Artifacts)spdlog</SpdlogInc>
+    <MaxSDK Condition="'$(MaxSDK)'==''">$(Artifacts)maxsdk</MaxSDK>
+    <MaxSdkLibRelease>$(MaxSDK)\lib\$(Platform)\Release</MaxSdkLibRelease>
+    <QTVER Condition=" '$(VersionTarget)'&gt;='2025' ">6.5.3</QTVER>
+    <QTVER Condition=" '$(VersionTarget)'&lt;='2024' ">5.15.1</QTVER>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(QtArtifacts)'=='' and '$(IsProjectInDevTree)'=='true'">
+    <QtArtifacts>$(Artifacts)</QtArtifacts>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(QtArtifacts)'=='' and '$(IsProjectInDevTree)'=='false'">
+    <QtArtifacts>$(Artifacts)$(VersionTarget)</QtArtifacts>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+    <Import Project="$(MaxSDK)\ProjectSettings\PropertySheets\3dsmax.general.project.settings.props" />
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+    <Import Project="$(MaxSDK)\ProjectSettings\PropertySheets\3dsmax.cpp.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <IntDir>$(BuildDir)\obj\$(Platform)\$(Configuration)\$(VersionTarget)\$(ProjectName)\</IntDir>
+	  <MaxPdbDir>$(BuildDir)\lib\$(Platform)\$(Configuration)\$(VersionTarget)</MaxPdbDir>
+    <IntermediateOutputPath>$(IntDir)</IntermediateOutputPath>
+    <OutDir>$(ContentsDir)\bin\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <PreprocessorDefinitions>SPDLOG_WCHAR_TO_UTF8_SUPPORT;SPDLOG_WCHAR_FILENAMES;FMT_HEADER_ONLY;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SpdLogInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+	  <LanguageStandard Condition="'$(VersionTarget)'&gt;='2026'">stdcpp17</LanguageStandard>
+    </ClCompile>
+  </ItemDefinitionGroup>
+</Project>
diff --git a/samples/3dsmaxUsdSample.settings.props b/samples/3dsmaxUsdSample.settings.props
new file mode 100644
index 0000000..3d55f56
--- /dev/null
+++ b/samples/3dsmaxUsdSample.settings.props
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+	<ImportGroup Label="PropertySheets">
+		<Import Project="./3dsmaxUsdSample.common.settings.props" Condition="$(HasImportedCommonProps) != '1'" />
+	</ImportGroup>
+
+	<!-- Project settings -->
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(MaxSdkInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+			<PreprocessorDefinitions>MAX_$(VersionTarget);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(MaxSdkLibRelease);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/samples/GlTFMaterialWriterSample/Contents/RegisterPlugin.ms b/samples/GlTFMaterialWriterSample/Contents/RegisterPlugin.ms
new file mode 100644
index 0000000..e50e70e
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/Contents/RegisterPlugin.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Registers the glTF Material Shader to USD Plug Registry
+ * This script is ran as part of the "post-start-up scripts parts"
+ * This is necessary to ensure that USD can register the plugin properly, and load the associated dll or python script when the time is right.
+ * Loading the USD plugin's DLL before the USD plugin object Load() is called can cause issues/crash.
+ * This script registers either the python or the c++ shader writer. Comment/uncomment the file accordingly to the one you want to load.
+ * Both could be registered at the same time without problem, but only one would ever be executed.
+ * For the purpose of this sample we demonstrate how to load a c++ and a python writer.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addMyMaxUsdPlugin = 
+(
+	pysys = python.import("sys")
+	pyos = python.import("os")
+	
+	scriptPath = getThisScriptFilename()
+	pluginPath = pathConfig.removePathLeaf scriptPath
+
+	-- note: either use the Python (default) or the C++ version of the plugin
+	-- You must comment/uncomment the respective maxscript code in the sections below
+
+	-- [section python - start]
+	-- Load the python prim reader
+	pluginPath = pluginPath + "\\python\\plugInfo.json"
+	-- The plugin script location must part of the Python path
+	pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+	-- [section python - end]
+	
+	-- [section c++ - start]
+	-- Load the c++ prim reader
+	/**
+	 * pluginPath = pluginPath + "\\plugInfo.json"
+	 */
+	-- [section c++ - end]
+
+	plugRegistry = pyUsdPlug.Registry()
+	plugRegistry.RegisterPlugins pluginPath
+)
+
+addMyMaxUsdPlugin()
+
+)
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/Contents/plugInfo.json b/samples/GlTFMaterialWriterSample/Contents/plugInfo.json
new file mode 100644
index 0000000..d4b8569
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/Contents/plugInfo.json
@@ -0,0 +1,28 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.
+    "Plugins": [
+        {
+            "Info": {
+                # Max specific token
+                "MaxUsd": {
+                    "ShaderWriter": {
+                        # Here we fill the array with the names of the materials supported by the plugin.
+                        # In this sample, this is just the glTF material.
+                        # To find the name you need to put here, you need to find the non localized name of the material, to do that :
+                        # Create an object and assign the material you want to work with in this plugin to it. Select the object.
+                        # Querry the class ID of this material in maxscript "classof $.material".
+                        # Use the returned value (for glTF material it would be "glTFMaterial") in maxscript listener to call "glTFMaterial.nonLocalizedName"
+                        "providesTranslator": [
+                            "glTF Material"
+                        ]
+                    }
+                }
+            },
+            "Name": "glTFMaterialWriter",
+            "Type": "library",
+            "LibraryPath": "glTFMaterialWriter.dll"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/Contents/python/glTFShaderWriter.py b/samples/GlTFMaterialWriterSample/Contents/python/glTFShaderWriter.py
new file mode 100644
index 0000000..0ae601b
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/Contents/python/glTFShaderWriter.py
@@ -0,0 +1,60 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdShade, Sdf
+import pymxs
+import traceback
+
+class glTFMaterialWriter(maxUsd.ShaderWriter):
+    # This python sample doesn't demonstrate animation, but an example can be found in the C++ sample.
+    def Write(self):
+        try: 
+            # the 'GetMaterial()' method returns the anim handle on the material
+            # need to fetch the anim on the handle to get back the pymxs.Material 
+            material = rt.GetAnimByHandle(self.GetMaterial())
+
+            # create the Shader prim
+            nodeShader = UsdShade.Shader.Define(self.GetUsdStage(), self.GetUsdPath())
+            nodeShader.CreateIdAttr("UsdPreviewSurface")
+            # assign the created Shader prim as the USD prim for the ShaderWriter
+            self.SetUsdPrim(nodeShader.GetPrim())
+            col = (material.baseColor.r/255, material.baseColor.g/255, material.baseColor.b/255)
+            inp = nodeShader.CreateInput("diffuseColor",Sdf.ValueTypeNames.Color3f)
+            inp.Set(col)
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+        
+    @classmethod
+    def CanExport(cls, exportArgs):
+        """
+        Static class method required to determine if the class is handling the
+        translation context required by the export job. The current class only
+        handles converting materials to 'UsdPreviewSurface' elements.
+        When this is called, we already know we're dealing with a glTF material,
+        we registered this writer specificaly for it.
+        """
+        if exportArgs.GetConvertMaterialsTo() == "UsdPreviewSurface":
+            return maxUsd.ShaderWriter.ContextSupport.Supported
+        elif "UsdPreviewSurface" not in exportArgs.GetAllMaterialConversions():
+            return maxUsd.ShaderWriter.ContextSupport.Fallback
+        return maxUsd.ShaderWriter.ContextSupport.Unsupported
+   
+# Register the writer.        
+maxUsd.ShaderWriter.Register(glTFMaterialWriter, "glTF Material")
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/Contents/python/plugInfo.json b/samples/GlTFMaterialWriterSample/Contents/python/plugInfo.json
new file mode 100644
index 0000000..7f148ad
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/Contents/python/plugInfo.json
@@ -0,0 +1,30 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.
+    "Plugins": [
+        {
+            "Info": {
+                # Max specific token
+                "MaxUsd": {
+                    "ShaderWriter": {
+                        # Here we fill the array with the names of the materials supported by the plugin.
+                        # In this sample, this is just the glTF material.
+                        # To find the name you need to put here, you need to find the non localized name of the material, to do that :
+                        # Create an object and assign the material you want to work with in this plugin to it. Select the object.
+                        # Querry the class ID of this material in maxscript "classof $.material".
+                        # Use the returned value (for glTF material it would be "glTFMaterial") in maxscript listener to call "glTFMaterial.nonLocalizedName"
+                        "providesTranslator": [
+                            "glTF Material"
+                        ]
+                    }
+                }
+            },
+            # This is the name of the python script that implements the shader writer.
+            # This file needs to be found at runtime by python, its path must be added
+            # to the python paths. See RegisterPlugin.ms for an exemple of how to do that.
+            "Name": "glTFShaderWriter",
+            "Type": "python"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/DLLEntry.h b/samples/GlTFMaterialWriterSample/DLLEntry.h
new file mode 100644
index 0000000..c4dfce4
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/DLLEntry.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/samples/GlTFMaterialWriterSample/DllEntry.cpp b/samples/GlTFMaterialWriterSample/DllEntry.cpp
new file mode 100644
index 0000000..046dabe
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/DllEntry.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.cpp b/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.cpp
new file mode 100644
index 0000000..87a4ade
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.cpp
@@ -0,0 +1,141 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "GlTFMaterialWriter.h"
+
+#include "Materials/Mtl.h"
+
+#include <MaxUsd/Translators/ShaderWriterRegistry.h>
+
+#include <pxr/usd/usdShade/shader.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <iparamb2.h>
+#include <notify.h>
+#include <units.h>
+
+// Macro for the pixar namespace "pxr::"
+// This is putting all of the code, until the close macro, into the pixar namespace.
+// This is needed for the Macros to compile and is required for all the Prim/Shader Writers
+PXR_NAMESPACE_OPEN_SCOPE
+
+// This macro registers the Shader Writer, it's adding the GlTFMaterialWriter class as a candidate
+// when trying to export a glTF material. It also verifies that the class we're registering
+// implements the CanExport() method and is a subclass of MaxUsdShaderWriter. The class_ID
+// represents the glTF material. It is also very important to set the project option "Remove
+// unreferenced code and data" to NO, not doing so could cause the Macro to be optimized out and the
+// Writer to never be properly registered.
+PXR_MAXUSD_REGISTER_SHADER_WRITER(Class_ID(0x38420192, 0x45fe4e1b), GlTFMaterialWriter);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+/*
+ * When this function is called we already know we are dealing with a glTF material,
+ * because we register this writer specifically against the glTF material Class_ID (see registration
+ * macro above). Which means the only thing we have to check is that we're trying to export to the
+ * desired format.
+ */
+MaxUsdShaderWriter::ContextSupport
+GlTFMaterialWriter::CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    // GetConvertMaterialsTo returns the current target material being processed
+    // In this sample our target is UsdPreviewSurface.
+    if (exportArgs.GetConvertMaterialsTo() == UsdImagingTokens->UsdPreviewSurface) {
+        return ContextSupport::Supported;
+    }
+    // Only report as fallback if UsdPreviewSurface was not explicitly requested:
+    if (exportArgs.GetAllMaterialConversions().count(UsdImagingTokens->UsdPreviewSurface) == 0) {
+        return ContextSupport::Fallback;
+    }
+    return ContextSupport::Unsupported;
+}
+
+enum GlTFMaterialWriterCodes
+{
+    UnableToDefineShadeShader,
+    InvalidPrimForShadeShader,
+    MissingShadeShader
+};
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(UnableToDefineShadeShader, "Could not define UsdShadeShader");
+    TF_ADD_ENUM_NAME(InvalidPrimForShadeShader, "Could not get UsdPrim for UsdShadeShader");
+    TF_ADD_ENUM_NAME(MissingShadeShader, "Could not get UsdShadeShader schema for UsdPrim");
+};
+
+/*
+ * The Shader Writer constructor is expected to define the Shader prim.
+ * The Write method is then responsible for populating it's data.
+ */
+GlTFMaterialWriter::GlTFMaterialWriter(
+    Mtl*                   material,
+    const SdfPath&         usdPath,
+    MaxUsdWriteJobContext& jobCtx)
+    : MaxUsdShaderWriter(material, usdPath, jobCtx)
+{
+    UsdShadeShader shaderSchema = UsdShadeShader::Define(GetUsdStage(), GetUsdPath());
+    if (!shaderSchema) {
+        TF_ERROR(UnableToDefineShadeShader, "at path '%s'\n", GetUsdPath().GetString().c_str());
+        return;
+    }
+
+    UsdAttribute idAttr = shaderSchema.CreateIdAttr(VtValue(UsdImagingTokens->UsdPreviewSurface));
+
+    usdPrim = shaderSchema.GetPrim();
+    if (!usdPrim.IsValid()) {
+        TF_ERROR(
+            InvalidPrimForShadeShader,
+            "at path '%s'\n",
+            shaderSchema.GetPath().GetString().c_str());
+        return;
+    }
+
+    // Surface Output
+    shaderSchema.CreateOutput(UsdShadeTokens->surface, SdfValueTypeNames->Token);
+}
+
+/*
+ * For the purpose of this sample, which is demonstrating the necessary parts needed to implement a
+ * Shader Writer, we will just export the base color of the glTF material. A similar approach can be
+ * taken for the other parameters.
+ */
+void GlTFMaterialWriter::Write()
+{
+    UsdShadeShader shaderSchema(usdPrim);
+    if (!shaderSchema) {
+        TF_ERROR(MissingShadeShader, "at path '%s'\n ", usdPrim.GetPath().GetString().c_str());
+        return;
+    }
+    const auto      timeConfig = GetExportArgs().GetResolvedTimeConfig();
+    Mtl*            mat = GetMaterial();
+    Interval        valid = FOREVER;
+    auto            pb = mat->GetParamBlock(0);
+    Point3          col;
+    const TimeValue startTime = timeConfig.GetStartTime();
+    const TimeValue endTime = timeConfig.GetEndTime();
+    // How much time we need to put for each Max's frame.
+    const int     timeStep = timeConfig.GetTimeStep();
+    UsdShadeInput in
+        = shaderSchema.CreateInput(TfToken("diffuseColor"), SdfValueTypeNames->Color3f);
+
+    for (TimeValue timeVal = startTime; timeVal <= endTime;) {
+        pb->GetValueByName(_T("baseColor"), timeVal, col, valid);
+        UsdTimeCode usdTimeCode(double(timeVal) / double(GetTicksPerFrame()));
+        in.Set(GfVec3f(col[0], col[1], col[2]), usdTimeCode);
+        timeVal += timeStep;
+    }
+}
diff --git a/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.h b/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.h
new file mode 100644
index 0000000..223ab83
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/GlTFMaterialWriter.h
@@ -0,0 +1,32 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/Translators/ShaderWriter.h>
+
+#include <pxr/pxr.h>
+
+/// Shader writer for exporting 3ds Max's material shading nodes to USD.
+class GlTFMaterialWriter : public pxr::MaxUsdShaderWriter
+{
+public:
+    GlTFMaterialWriter(
+        Mtl*                        material,
+        const pxr::SdfPath&         usdPath,
+        pxr::MaxUsdWriteJobContext& jobCtx);
+
+    static ContextSupport CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs);
+    void                  Write() override;
+};
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj b/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj
new file mode 100644
index 0000000..1365553
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>glTFMaterialWriterPlugin</ProjectName>
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{c8835a49-1acd-4952-8541-44e269ea9d6a}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmaxUsdSample.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <TargetName>glTFMaterialWriter</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)\Contents\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>maxutil.lib;paramblk2.lib;geom.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <PostBuildEvent>
+      <Command>@echo Do not forget to update "$(OutDir)RegisterPlugin.ms" in order to load the C++ version of the plugin.</Command>
+    </PostBuildEvent>
+    <ClCompile>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>../silence_usd_warnings.h</ForcedIncludeFiles>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <None Include="GlTFMaterialWriter.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="GlTFMaterialWriter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\glTFShaderWriter.py">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="PackageContents.xml">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>..\%(Filename)%(Extension)</TargetPath>
+    </None>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj.filters b/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj.filters
new file mode 100644
index 0000000..d8c1d5d
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/GlTFMaterialWriterPlugin.vcxproj.filters
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{25315e12-ed5d-4ac2-b13c-ba8f290f8531}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{6f2f59da-a1f4-4d91-84ed-9453ed9aa3b7}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{895ead2c-9600-4cb7-bf86-f6e7212d472a}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{c84288c0-608c-4777-b0bd-330ac9d0e0aa}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Contents">
+      <UniqueIdentifier>{3aa8115e-cee5-47cc-a3dc-261479d40856}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="GlTFMaterialWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="GlTFMaterialWriter.h">
+      <Filter>Header Files</Filter>
+    </None>
+    <None Include="Contents\plugInfo.json">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\python\glTFShaderWriter.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Source Files</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/GlTFMaterialWriterSample/PackageContents.xml b/samples/GlTFMaterialWriterSample/PackageContents.xml
new file mode 100644
index 0000000..70182a4
--- /dev/null
+++ b/samples/GlTFMaterialWriterSample/PackageContents.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationPackage SchemaVersion="1.0"
+	AutodeskProduct="3ds Max"
+	Name="glTFShaderWriter"
+	Description="glTF material USD ShaderWriter sample plugin"
+	AppVersion="1.0.0"
+	ProductType="Application"
+	Author="Autodesk"
+	ProductCode="*"
+	UpgradeCode="{15c129dd-e05a-49d7-bddc-b5fc4c3f8628}">
+  <CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+  <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+  <Components Description="post-start-up scripts parts">
+    <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+    <ComponentEntry ModuleName="./Contents/RegisterPlugin.ms" />
+  </Components>
+</ApplicationPackage>
\ No newline at end of file
diff --git a/samples/MaxUSDSamples.sln b/samples/MaxUSDSamples.sln
new file mode 100644
index 0000000..1105e99
--- /dev/null
+++ b/samples/MaxUSDSamples.sln
@@ -0,0 +1,69 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31624.102
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "glTFMaterialWriterPlugin", "GlTFMaterialWriterSample\GlTFMaterialWriterPlugin.vcxproj", "{C8835A49-1ACD-4952-8541-44E269EA9D6A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SpherePrimWriterPlugin", "SpherePrimWriterSample\SpherePrimWriterPlugin.vcxproj", "{68768A54-4E41-4C50-92BC-3D1930ECB8B3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UserDataExportChaserPlugin", "UserDataExportChaserSample\UserDataExportChaser.vcxproj", "{1EF31957-1C1A-4869-B52D-D733FE24F0A9}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SpherePrimReaderPlugin", "SpherePrimReaderSample\SpherePrimReaderPlugin.vcxproj", "{D472D226-4ACE-4A25-85B7-3263B3FFEE59}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TestSdk", "TestSdk\TestSdk.vcxproj", "{BCDDCE76-F91F-4035-933F-F486B72EE818}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UserDataImportChaserPlugin", "UserDataImportChaserSample\UserDataImportChaser.vcxproj", "{CAE8A112-333A-4CB5-81DD-9F9503D004A2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Hybrid|x64 = Hybrid|x64
+		Hybrid|x86 = Hybrid|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Hybrid|x64.Build.0 = Hybrid|x64
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Release|x64.ActiveCfg = Release|x64
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Release|x64.Build.0 = Release|x64
+		{C8835A49-1ACD-4952-8541-44E269EA9D6A}.Release|x86.ActiveCfg = Release|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Hybrid|x64.Build.0 = Hybrid|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Release|x64.ActiveCfg = Release|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Release|x64.Build.0 = Release|x64
+		{68768A54-4E41-4C50-92BC-3D1930ECB8B3}.Release|x86.ActiveCfg = Release|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Hybrid|x64.Build.0 = Hybrid|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Release|x64.ActiveCfg = Release|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Release|x64.Build.0 = Release|x64
+		{1EF31957-1C1A-4869-B52D-D733FE24F0A9}.Release|x86.ActiveCfg = Release|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Hybrid|x64.Build.0 = Hybrid|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Release|x64.ActiveCfg = Release|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Release|x64.Build.0 = Release|x64
+		{D472D226-4ACE-4A25-85B7-3263B3FFEE59}.Release|x86.ActiveCfg = Release|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Hybrid|x64.Build.0 = Hybrid|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Release|x64.ActiveCfg = Release|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Release|x64.Build.0 = Release|x64
+		{BCDDCE76-F91F-4035-933F-F486B72EE818}.Release|x86.ActiveCfg = Release|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Hybrid|x64.Build.0 = Hybrid|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Release|x64.ActiveCfg = Release|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Release|x64.Build.0 = Release|x64
+		{CAE8A112-333A-4CB5-81DD-9F9503D004A2}.Release|x86.ActiveCfg = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {7134C1FA-2164-4BB8-BA27-91494A5223AA}
+	EndGlobalSection
+EndGlobal
diff --git a/samples/SpherePrimReaderSample/Contents/RegisterPlugin.ms b/samples/SpherePrimReaderSample/Contents/RegisterPlugin.ms
new file mode 100644
index 0000000..8768eb9
--- /dev/null
+++ b/samples/SpherePrimReaderSample/Contents/RegisterPlugin.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Registers the Sphere Prim Reader to USD Plug Registry
+ * This script is ran as part of the "post-start-up scripts parts"
+ * This is necessary to ensure that USD can register the plugin properly, and load the associated dll or python script when the time is right.
+ * Loading the USD plugin's DLL before the USD plugin object Load() is called can cause issues/crash.
+ * This script registers either the python or the c++ prim reader. Comment/uncomment the file accordingly to the one you want to load.
+ * Both could be registered at the same time without problem, but only one would ever be executed.
+ * For the purpose of this sample we demonstrate how to load a c++ and a python reader.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addMyMaxUsdPlugin = 
+(
+	pysys = python.import("sys")
+	pyos = python.import("os")
+	
+	scriptPath = getThisScriptFilename()
+	pluginPath = pathConfig.removePathLeaf scriptPath
+
+	-- note: either use the Python (default) or the C++ version of the plugin
+	-- You must comment/uncomment the respective maxscript code in the sections below
+
+	-- [section python - start]
+	-- Load the python prim reader
+	pluginPath = pluginPath + "\\python\\plugInfo.json"
+	-- The plugin script location must part of the Python path
+	pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+	-- [section python - end]
+	
+	-- [section c++ - start]
+	-- Load the c++ prim reader
+	/**
+	 * pluginPath = pluginPath + "\\plugInfo.json"
+	 */
+	-- [section c++ - end]
+
+	plugRegistry = pyUsdPlug.Registry()
+	plugRegistry.RegisterPlugins pluginPath
+)
+
+addMyMaxUsdPlugin()
+
+)
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/Contents/plugInfo.json b/samples/SpherePrimReaderSample/Contents/plugInfo.json
new file mode 100644
index 0000000..ec9e3b4
--- /dev/null
+++ b/samples/SpherePrimReaderSample/Contents/plugInfo.json
@@ -0,0 +1,22 @@
+{
+   # Comments are allowed and indicated by a hash at the start of a
+   # line or after spaces and tabs.  They continue to the end of line.
+   # Blank lines are okay, too.
+   "Plugins": [
+      {
+         "Info": {
+            # Max specific token
+            "MaxUsd": {
+               "PrimReader": {
+                  "providesTranslator": [
+                     "UsdGeomSphere"
+                  ]
+               }
+            }
+         },
+         "Name": "SpherePrimReader",
+         "Type": "library",
+         "LibraryPath": "SpherePrimReader.dll"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/Contents/python/SpherePrimReader.py b/samples/SpherePrimReaderSample/Contents/python/SpherePrimReader.py
new file mode 100644
index 0000000..ee01685
--- /dev/null
+++ b/samples/SpherePrimReaderSample/Contents/python/SpherePrimReader.py
@@ -0,0 +1,71 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdGeom
+from pxr import Gf as pyGf
+import pymxs
+import traceback
+
+class SphereReader(maxUsd.PrimReader):
+    '''
+    Prim reader for importing a USD native sphere into 3ds Max
+    '''
+
+    @classmethod
+    def CanImport(cls, args, prim):
+        '''
+        This method is responsible of telling the import process if it can import the current prim.
+        In the case of this sample, the PrimReaderRegistry already filters readers based on the
+        prim type they registered themselves with. Here, we want to make sure the default fallback
+        reader is superceeded by this one by returning 'Supported'.
+        '''
+        return maxUsd.PrimReader.ContextSupport.Supported
+
+    def Read(self):
+        try: 
+            usdPrim = self.GetUsdPrim()
+            sphere = UsdGeom.Sphere(usdPrim)
+
+            # create sphere node and attach newly created node to its parents if any
+            parentHandle = self.GetJobContext().GetNodeHandle(usdPrim.GetPath().GetParentPath(), False)
+            if (parentHandle):
+                node = rt.sphere(name=usdPrim.GetName(), parent=rt.GetAnimByHandle(parentHandle))
+            else:
+                node = rt.sphere(name=usdPrim.GetName())
+                
+            def RadiusSetter(value, usdTimeCode, maxFrame) -> bool:
+                node.radius = value
+                return True
+            maxUsd.TranslationUtils.ReadUsdAttribute(sphere.GetRadiusAttr(),
+                                                     maxUsd.AnimatedAttributeHelper(RadiusSetter)(),
+                                                     self.GetJobContext())
+
+            self.GetJobContext().RegisterCreatedNode(usdPrim.GetPath(), rt.GetHandleByAnim(node))
+            self.ReadXformable()
+            
+            return True
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Read() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            return False
+   
+# Register the reader.
+# First argument is the reader class, second argument is the USD type name handled by the reader
+maxUsd.PrimReader.Register(SphereReader, "UsdGeomSphere")
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/Contents/python/plugInfo.json b/samples/SpherePrimReaderSample/Contents/python/plugInfo.json
new file mode 100644
index 0000000..1b9fcf0
--- /dev/null
+++ b/samples/SpherePrimReaderSample/Contents/python/plugInfo.json
@@ -0,0 +1,24 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.   
+    "Plugins": [
+        {
+            "Info": {
+            # Max specific token
+            "MaxUsd": {
+                    "PrimReader": {
+                        "providesTranslator": [
+                            "UsdGeomSphere"
+                        ]
+                    }
+                }
+            },
+            # This is the name of the python script that implements the shader writer.
+            # This file needs to be found on runtime by python, it's path must be added
+            # to the python paths. See RegisterPlugin.ms for an exemple on how to do that.
+            "Name": "SpherePrimReader",
+            "Type": "python"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/DLLEntry.h b/samples/SpherePrimReaderSample/DLLEntry.h
new file mode 100644
index 0000000..c4dfce4
--- /dev/null
+++ b/samples/SpherePrimReaderSample/DLLEntry.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/samples/SpherePrimReaderSample/DllEntry.cpp b/samples/SpherePrimReaderSample/DllEntry.cpp
new file mode 100644
index 0000000..046dabe
--- /dev/null
+++ b/samples/SpherePrimReaderSample/DllEntry.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/PackageContents.xml b/samples/SpherePrimReaderSample/PackageContents.xml
new file mode 100644
index 0000000..b998dca
--- /dev/null
+++ b/samples/SpherePrimReaderSample/PackageContents.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationPackage SchemaVersion="1.0"
+	AutodeskProduct="3ds Max"
+	Name="SpherePrimReader"
+	Description="Max USD Sphere Prim Reader"
+	AppVersion="1.0.0"
+	ProductType="Application"
+	Author="Autodesk"
+	ProductCode="*"
+	UpgradeCode="{9d2ff0c2-d880-11ed-afa1-0242ac120002}">
+	<CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+	<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+	<Components Description="post-start-up scripts parts">
+		<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+		<ComponentEntry ModuleName="./Contents/RegisterPlugin.ms" />
+	</Components>
+</ApplicationPackage>
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/SpherePrimReader.cpp b/samples/SpherePrimReaderSample/SpherePrimReader.cpp
new file mode 100644
index 0000000..91bdd2f
--- /dev/null
+++ b/samples/SpherePrimReaderSample/SpherePrimReader.cpp
@@ -0,0 +1,113 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdGeom/sphere.h>
+
+#include <maxapi.h>
+
+// Macro for the pixar namespace "pxr::"
+PXR_NAMESPACE_USING_DIRECTIVE
+
+/// Prim reader for importing a USD native sphere.
+class SpherePrimReader : public MaxUsdPrimReader
+{
+public:
+    SpherePrimReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx);
+
+    static MaxUsdPrimReader::ContextSupport
+         CanImport(const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&);
+    bool Read() override;
+};
+
+// This macro registers the Prim Reader, it's adding the SpherePrimReader class as a candidate when
+// trying to import a UsdGeomSphere prim. The CanImport() method is responsible for defining what
+// can be imported or not. It is also really important to set the project option "Remove
+// unreferenced code and data" to NO, this could cause the Macro to be optimized out and the Reader
+// to never be properly registered.
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdGeomSphere)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdGeomSphere>(
+        SpherePrimReader::CanImport, [](const UsdPrim& prim, MaxUsdReadJobContext& context) {
+            return std::make_shared<SpherePrimReader>(prim, context);
+        });
+}
+
+/*
+ * This Reader only deals with Sphere objects
+ */
+
+SpherePrimReader::SpherePrimReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+    : MaxUsdPrimReader(prim, jobCtx)
+{
+}
+
+MaxUsdPrimReader::ContextSupport
+SpherePrimReader::CanImport(const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&)
+{
+    // the primreader registry applies a first filter based on prim types
+    // this reader supports all UsdGeomSphere prims
+    return MaxUsdPrimReader::ContextSupport::Supported;
+}
+
+/*
+ * For this sample, we will demonstrate how to import
+ */
+bool SpherePrimReader::Read()
+{
+    const UsdPrim& usdPrim = GetUsdPrim();
+    if (!usdPrim) {
+        return false;
+    }
+    const UsdGeomSphere sphereSchema(usdPrim);
+    if (!sphereSchema) {
+        return false;
+    }
+
+    GeomObject* maxSphere = static_cast<GeomObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, Class_ID(SPHERE_CLASS_ID, 0)));
+    auto spherePb = maxSphere->GetParamBlock(0);
+
+    // animated attribute
+    if (!MaxUsdTranslatorUtil::ReadUsdAttribute(
+            sphereSchema.GetRadiusAttr(),
+            [&](const VtValue& radius, const UsdTimeCode&, const TimeValue time) {
+                spherePb->SetValueByName(
+                    _T("radius"), static_cast<float>(radius.Get<double>()), time);
+                return true;
+            },
+            GetJobContext())) {
+        // unable to properly set the radius of the sphere
+        TF_WARN(
+            "Unable to properly set the radius on '%s'.", usdPrim.GetName().GetString().c_str());
+        return false;
+    }
+
+    INode* createdNode = MaxUsdTranslatorPrim::CreateAndRegisterNode(
+        usdPrim, maxSphere, usdPrim.GetName(), GetJobContext());
+
+    // read Xform attributes and convert those into 3ds Max transform values
+    MaxUsdTranslatorXformable::Read(usdPrim, createdNode, GetJobContext());
+
+    return true;
+}
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/SpherePrimReader.h b/samples/SpherePrimReaderSample/SpherePrimReader.h
new file mode 100644
index 0000000..c84a491
--- /dev/null
+++ b/samples/SpherePrimReaderSample/SpherePrimReader.h
@@ -0,0 +1,31 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+
+#include <pxr/pxr.h>
+
+/// Prim reader for importing a USD native sphere.
+class SpherePrimReader : public pxr::MaxUsdPrimReader
+{
+public:
+    SpherePrimReader(const pxr::UsdPrim& prim, const MaxSceneBuilderOptions& options);
+    static ContextSupport
+         CanImport(const MaxSceneBuilderOptions& importArgs, const UsdPrim& importPrim);
+    bool Read(pxr::MaxUsdReadJobContext& context) override;
+};
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.filters b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.filters
new file mode 100644
index 0000000..19be970
--- /dev/null
+++ b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.filters
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{25315e12-ed5d-4ac2-b13c-ba8f290f8531}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{6f2f59da-a1f4-4d91-84ed-9453ed9aa3b7}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{895ead2c-9600-4cb7-bf86-f6e7212d472a}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{c84288c0-608c-4777-b0bd-330ac9d0e0aa}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="SpherePrimReader.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="SpherePrimReader.h">
+      <Filter>Header Files</Filter>
+    </None>
+    <None Include="python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="python\SpherePrimReader.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <CopyFileToFolders Include="plugInfo.json">
+      <Filter>Source Files</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="RegisterPlugin.ms">
+      <Filter>Source Files</Filter>
+    </CopyFileToFolders>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Source Files</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj
new file mode 100644
index 0000000..e947d78
--- /dev/null
+++ b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>SpherePrimReaderPlugin</ProjectName>
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{D472D226-4ACE-4A25-85B7-3263B3FFEE59}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmaxUsdSample.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <TargetName>SpherePrimReader</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)\Contents\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>MNMath.lib;mesh.lib;maxutil.lib;paramblk2.lib;geom.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <ClCompile>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>../silence_usd_warnings.h</ForcedIncludeFiles>
+    </ClCompile>
+    <PostBuildEvent>
+      <Command>@echo Do not forget to update "$(OutDir)RegisterPlugin.ms" in order to load the C++ version of the plugin.</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <None Include="SpherePrimReader.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="SpherePrimReader.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\SpherePrimReader.py">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="PackageContents.xml">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>..\%(Filename)%(Extension)</TargetPath>
+    </None>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj.filters b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj.filters
new file mode 100644
index 0000000..4d3e57f
--- /dev/null
+++ b/samples/SpherePrimReaderSample/SpherePrimReaderPlugin.vcxproj.filters
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="SpherePrimReader.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="SpherePrimReader.h">
+      <Filter>Header Files</Filter>
+    </None>
+    <None Include="PackageContents.xml" />
+    <None Include="Contents\plugInfo.json">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\python\SpherePrimReader.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{dd38d7f3-3c3d-435f-91f0-4942c731cd56}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{1c1443d9-57da-4918-a1e4-1458209a98af}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{0a465c0d-eacc-4ed1-a273-97598cf28a73}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Contents">
+      <UniqueIdentifier>{5cbeeec9-de6b-430c-a27a-03d0db1e3bd4}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/Contents/RegisterPlugin.ms b/samples/SpherePrimWriterSample/Contents/RegisterPlugin.ms
new file mode 100644
index 0000000..ce89364
--- /dev/null
+++ b/samples/SpherePrimWriterSample/Contents/RegisterPlugin.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Registers the Sphere Prim Writer to USD Plug Registry
+ * This script is ran as part of the "post-start-up scripts parts"
+ * This is necessary to ensure that USD can register the plugin properly, and load the associated dll or python script when the time is right.
+ * Loading the USD plugin's DLL before the USD plugin object Load() is called can cause issues/crash.
+ * This script registers either the python or the c++ shader writer. Comment/uncomment the file accordingly to the one you want to load.
+ * Both could be registered at the same time without problem, but only one would ever be executed.
+ * For the purpose of this sample we demonstrate how to load a c++ and a python writer.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addMyMaxUsdPlugin = 
+(
+	pysys = python.import("sys")
+	pyos = python.import("os")
+	
+	scriptPath = getThisScriptFilename()
+	pluginPath = pathConfig.removePathLeaf scriptPath
+
+	-- note: either use the Python (default) or the C++ version of the plugin
+	-- You must comment/uncomment the respective maxscript code in the sections below
+
+	-- [section python - start]
+	-- Load the python prim reader
+	pluginPath = pluginPath + "\\python\\plugInfo.json"
+	-- The plugin script location must part of the Python path
+	pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+	-- [section python - end]
+	
+	-- [section c++ - start]
+	-- Load the c++ prim reader
+	/**
+	 * pluginPath = pluginPath + "\\plugInfo.json"
+	 */
+	-- [section c++ - end]
+
+	plugRegistry = pyUsdPlug.Registry()
+	plugRegistry.RegisterPlugins pluginPath
+)
+
+addMyMaxUsdPlugin()
+
+)
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/Contents/plugInfo.json b/samples/SpherePrimWriterSample/Contents/plugInfo.json
new file mode 100644
index 0000000..9934829
--- /dev/null
+++ b/samples/SpherePrimWriterSample/Contents/plugInfo.json
@@ -0,0 +1,21 @@
+{
+   # Comments are allowed and indicated by a hash at the start of a
+   # line or after spaces and tabs.  They continue to the end of line.
+   # Blank lines are okay, too.
+   "Plugins":[
+      {
+         "Info":{
+            # Max specific token
+            "MaxUsd":{
+               # This is left empty by design, the "CanConvert" method will be responsible
+               # of determining if this prim writer can be used.
+               # The PrimWriter key is all that is need for the plugin to be found and loaded on export.
+               "PrimWriter" : {}
+            }
+         },
+         "Name": "SpherePrimWriter",
+         "Type": "library",
+         "LibraryPath": "SpherePrimWriter.dll"
+      }
+   ]
+ }
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/Contents/python/SpherePrimWriter.py b/samples/SpherePrimWriterSample/Contents/python/SpherePrimWriter.py
new file mode 100644
index 0000000..7f589ae
--- /dev/null
+++ b/samples/SpherePrimWriterSample/Contents/python/SpherePrimWriter.py
@@ -0,0 +1,105 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdGeom
+from pxr import Gf as pyGf
+import pymxs
+import traceback
+
+EXPORT_AS_NATIVE_SPHERE = True
+
+# Prim writer for exporting Sphere object to USD native sphere.
+class SphereWriter(maxUsd.PrimWriter):
+
+    # This Writer only deals with Sphere objects, so we return a "Sphere" token because we want to convert the node to a native USD Sphere.
+    # For performance reasons, the export is done in two passes.
+    # The first pass creates all the prims inside a single SdfChangeBlock, the second pass populate each prim's attributes.
+    # It is not mandatory to implement this function, it is also possible to define the prim from the Write() method (which would override the prim's type created in the first pass),
+    # but you would lose the performance benefit. If not implemented, the base implementation returns Xform.
+    def GetPrimType(self):
+        if EXPORT_AS_NATIVE_SPHERE:
+            return "Sphere"
+        return "Mesh"
+
+    # For this sample, we will demonstrate how to export the Radius and DisplayColor attributes.
+    # We'll also demonstrate one way to handle animation.    
+    def Write(self, prim, applyOffset, time):
+        try: 
+            nodeHandle = self.GetNodeHandle()
+            stage = prim.GetStage()
+            opts = self.GetExportArgs()
+            node = rt.maxOps.getNodeByHandle(nodeHandle)
+            
+            usdTime = time.GetUsdTime()
+            maxTime = time.GetMaxTime()
+            
+            if EXPORT_AS_NATIVE_SPHERE:            
+                # prim is already a Sphere, it was created for us from the type returned in GetPrimType()
+                spherePrim = UsdGeom.Sphere(prim)
+                radiusAttr = spherePrim.GetRadiusAttr()
+                extentAttr = spherePrim.CreateExtentAttr()
+                radius = None
+                with pymxs.attime(maxTime):
+                    radius = node.radius
+                radiusAttr.Set(radius, usdTime)
+                extent = pyGf.Vec3f(radius, radius, radius)
+                extentAttr.Set([-extent, extent], usdTime)
+                
+            # Alternatively, we could export the Sphere as a mesh, using the MeshConverter utility :
+            else:
+                spherePrim = maxUsd.MeshConverter.ConvertToUSDMesh(nodeHandle, stage, prim.GetPath(), opts, applyOffset, time)
+            
+            if time.IsFirstFrame():
+                if EXPORT_AS_NATIVE_SPHERE:
+                    print("Write a Sphere as a USD Sphere prim!")
+                else:
+                    print("Write a Sphere as a USD Mesh prim!")
+                
+                # Setup the wireColor as displayColor.
+                displayColorAttr = spherePrim.GetDisplayColorAttr()
+                r = node.wireColor.r / 255
+                g = node.wireColor.g / 255
+                b = node.wireColor.b / 255
+                displayColorAttr.Set([(r,g,b)])
+                return True
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            return False
+
+    def GetValidityInterval(self, timeFrame):
+        # The base implementation of GetValidityInterval() will return the object's validity interval.
+        # So the write() method would only be called when the object changes. 
+        # for demonstration purposes, lets force the exporter to call the object's write every frame, 
+        # by telling it that what we export at each frame is only valid at that exact frame.
+        return maxUsd.Interval(timeFrame,timeFrame)
+
+    # This method is responsible of telling the export process if it can export the current node's object.
+    # In the case of this sample, the only object type we want to handle is the Sphere.    
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        node = rt.maxOps.getNodeByHandle(nodeHandle)
+        if rt.classOf(node) == rt.Sphere:
+            return maxUsd.PrimWriter.ContextSupport.Supported
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+   
+# Register the writer.
+# First argument is the class, second argument is the Writer name, which will be used as an ID internaly.
+maxUsd.PrimWriter.Register(SphereWriter, "SphereWriter")
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/Contents/python/plugInfo.json b/samples/SpherePrimWriterSample/Contents/python/plugInfo.json
new file mode 100644
index 0000000..8074de5
--- /dev/null
+++ b/samples/SpherePrimWriterSample/Contents/python/plugInfo.json
@@ -0,0 +1,23 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.   
+    "Plugins": [
+    {
+      "Info": {
+            # Max specific token
+            "MaxUsd": {
+                # This is left empty by design, the "CanExport" method will be responsible
+                # of determining if this prim writer can be used.
+                # The PrimWriter key is all that is need for the plugin to be found and loaded on export.
+                "PrimWriter": {}
+        }
+      },
+      # This is the name of the python script that implements the shader writer.
+      # This file needs to be found on runtime by python, it's path must be added
+      # to the python paths. See RegisterPlugin.ms for an exemple on how to do that.
+      "Name": "SpherePrimWriter",
+      "Type": "python"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/DLLEntry.h b/samples/SpherePrimWriterSample/DLLEntry.h
new file mode 100644
index 0000000..c4dfce4
--- /dev/null
+++ b/samples/SpherePrimWriterSample/DLLEntry.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/samples/SpherePrimWriterSample/DllEntry.cpp b/samples/SpherePrimWriterSample/DllEntry.cpp
new file mode 100644
index 0000000..046dabe
--- /dev/null
+++ b/samples/SpherePrimWriterSample/DllEntry.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/PackageContents.xml b/samples/SpherePrimWriterSample/PackageContents.xml
new file mode 100644
index 0000000..58ed04b
--- /dev/null
+++ b/samples/SpherePrimWriterSample/PackageContents.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationPackage SchemaVersion="1.0"
+	AutodeskProduct="3ds Max"
+	Name="SpherePrimWriter"
+	Description="Max USD Sphere Prim Writer"
+	AppVersion="1.0.0"
+	ProductType="Application"
+	Author="Autodesk"
+	ProductCode="*"
+	UpgradeCode="{25c132de-e05b-49d7-bddc-b5fc4c3f8628}">
+	<CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+	<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+	<Components Description="post-start-up scripts parts">
+		<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+		<ComponentEntry ModuleName="./Contents/RegisterPlugin.ms" />
+	</Components>
+</ApplicationPackage>
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/SpherePrimWriter.cpp b/samples/SpherePrimWriterSample/SpherePrimWriter.cpp
new file mode 100644
index 0000000..824a841
--- /dev/null
+++ b/samples/SpherePrimWriterSample/SpherePrimWriter.cpp
@@ -0,0 +1,160 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "SpherePrimWriter.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdGeom/sphere.h>
+#include <pxr/usd/usdShade/shader.h>
+
+#include <iparamb2.h>
+#include <notify.h>
+#include <object.h>
+
+// Macro for the pixar namespace "pxr::"
+// This is putting all of the code, until the close macro, into the pixar namespace.
+// This is needed for the Macros to compile and is required for all the Prim/Shader Writers
+PXR_NAMESPACE_OPEN_SCOPE
+
+// This macro registers the Prim Writer, it's adding the SpherePrimWriter class as a candidate when
+// trying to export an object. Unlike for shader writer, this doesn't contain information about the
+// supported classes. The CanExport() method is responsible for defining what can be exported or
+// not. It is also really important to set the project option "Remove unreferenced code and data" to
+// NO, this could cause the Macro to be optimized out and the Writer to never be properly
+// registered.
+PXR_MAXUSD_REGISTER_WRITER(SpherePrimWriter);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+// For demonstration purposes, provide an example to export using a native usd sphere, or as a usd
+// mesh.
+static bool EXPORT_AS_NATIVE_SPHERE = true;
+
+/*
+ * This method is responsible of telling the export process if it can export the current node's
+ * object. In the case of this sample, the only object type we want to handle is the Sphere.
+ */
+pxr::MaxUsdPrimWriter::ContextSupport
+SpherePrimWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions&)
+{
+    // We simply pass TimeValue "0" here to EvalWorldStage() as it is not important at what time we
+    // evaluate the object, we are only looking at the object's type and we assume that it will not
+    // change over time.
+    const auto object = node->EvalWorldState(0).obj;
+    if (object->ClassID() == Class_ID(SPHERE_CLASS_ID, 0)) {
+        return ContextSupport::Supported;
+    }
+    return ContextSupport::Unsupported;
+}
+
+/*
+ * This Writer only deals with Sphere objects - we return a "Sphere" token if we want to convert the
+ * node to a native USD Sphere, or mesh, if not. For performance reasons, the export is done in two
+ * passes. The first pass creates all the prims inside a single SdfChangeBlock, the second pass
+ * populate each prim's attributes. It is not mandatory to implement this function, it is also
+ * possible to define the prim from the Write() method (which would override the prim's type created
+ * in the first pass), but you would lose the performance benefit. If not implemented, the base
+ * implementation returns Xform.
+ */
+pxr::TfToken SpherePrimWriter::GetPrimType()
+{
+    return EXPORT_AS_NATIVE_SPHERE ? pxr::TfToken("Sphere") : pxr::TfToken("Mesh");
+}
+
+SpherePrimWriter::SpherePrimWriter(const pxr::MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+/*
+ * For this sample, we will demonstrate how to export the Radius and DisplayColor attributes.
+ * We'll also demonstrate one way to handle animation.
+ */
+bool SpherePrimWriter::Write(
+    pxr::UsdPrim&             targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& timeFrame)
+{
+    auto sourceNode = GetNode();
+
+    if (EXPORT_AS_NATIVE_SPHERE) {
+        // targetPrim is already a Sphere, it was created for us from the type returned in
+        // GetPrimType()
+        pxr::UsdGeomSphere spherePrim(targetPrim);
+        pxr::UsdAttribute  radiusAttr = spherePrim.CreateRadiusAttr();
+        pxr::UsdAttribute  extentAttr = spherePrim.CreateExtentAttr();
+        const auto         spherePb
+            = sourceNode->EvalWorldState(timeFrame.GetMaxTime()).obj->GetParamBlock(0);
+        float    radius = 0;
+        Interval inter = FOREVER;
+
+        // Get the value in Max time.
+        // We already know we're dealing with a Sphere object at this point, because we wouldn't be
+        // here otherwise. CanConvert must have passed for Write to be called.
+        spherePb->GetValueByName(_T("Radius"), timeFrame.GetMaxTime(), radius, inter);
+        // Set it at the equivalent usd time.
+        // When doing set on Attribute, the type must match exactly, otherwise it'll do nothing.
+        radiusAttr.Set(static_cast<double>(radius), timeFrame.GetUsdTime());
+        // Set the extent Attribute, this is usd to compute the bounding box in USD
+        pxr::VtVec3fArray extent
+            = { pxr::GfVec3f(-radius, -radius, -radius), pxr::GfVec3f(radius, radius, radius) };
+        extentAttr.Set(extent, timeFrame.GetUsdTime());
+
+        if (timeFrame.IsFirstFrame()) {
+            pxr::UsdAttribute displayColorAttr = spherePrim.CreateDisplayColorAttr();
+            const COLORREF    wireCol = sourceNode->GetWireColor();
+            pxr::VtVec3fArray colVec;
+            colVec.push_back(pxr::GfVec3f(
+                static_cast<int>(GetRValue(wireCol)) / 255.f,
+                static_cast<int>(GetGValue(wireCol)) / 255.f,
+                static_cast<int>(GetBValue(wireCol)) / 255.f));
+            // When doing set on Attribute, the type must match exactly, otherwise it'll do nothing.
+            displayColorAttr.Set(colVec);
+        }
+    }
+    // Alternatively, we could export the Sphere as a mesh, using the MeshConverter utility :
+    else {
+        MaxUsd::MeshConverter converter;
+        converter.ConvertToUSDMesh(
+            sourceNode,
+            targetPrim.GetStage(),
+            targetPrim.GetPath(),
+            GetExportArgs().GetMeshConversionOptions(),
+            applyOffsetTransform,
+            GetExportArgs().GetResolvedTimeConfig().IsAnimated(),
+            timeFrame);
+    }
+    return true;
+}
+
+Interval SpherePrimWriter::GetValidityInterval(const TimeValue& time)
+{
+    // The base implementation of GetValidityInterval() will return the object's validity interval.
+    // In the sphere writer, we only export the radius, for demonstration purposes, lets make sure
+    // we only export the frames we really need, by telling the exporter that the exported sphere
+    // is valid as long as the radius doesnt change (i.e. we dont care about other properties that
+    // may change on the 3dsmax sphere)
+    const auto node = GetNode();
+    const auto spherePb = node->EvalWorldState(time).obj->GetParamBlock(0);
+
+    Interval radiusInterval = FOREVER;
+    float    radius = 0;
+    spherePb->GetValueByName(_T("Radius"), time, radius, radiusInterval);
+
+    return radiusInterval;
+}
diff --git a/samples/SpherePrimWriterSample/SpherePrimWriter.h b/samples/SpherePrimWriterSample/SpherePrimWriter.h
new file mode 100644
index 0000000..c219b12
--- /dev/null
+++ b/samples/SpherePrimWriterSample/SpherePrimWriter.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+#include <MaxUsd/Translators/PrimWriter.h>
+
+#include <pxr/pxr.h>
+
+/// Prim writer for exporting Sphere object to USD native sphere.
+class SpherePrimWriter : public pxr::MaxUsdPrimWriter
+{
+public:
+    SpherePrimWriter(const pxr::MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+    pxr::TfToken          GetPrimType() override;
+    bool                  Write(
+                         pxr::UsdPrim&             targetPrim,
+                         bool                      applyOffsetTransform,
+                         const MaxUsd::ExportTime& timeFrame) override;
+
+    virtual Interval GetValidityInterval(const TimeValue& time);
+};
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.filters b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.filters
new file mode 100644
index 0000000..bd83ef1
--- /dev/null
+++ b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.filters
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{25315e12-ed5d-4ac2-b13c-ba8f290f8531}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{6f2f59da-a1f4-4d91-84ed-9453ed9aa3b7}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{895ead2c-9600-4cb7-bf86-f6e7212d472a}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{c84288c0-608c-4777-b0bd-330ac9d0e0aa}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="GlTFMaterialWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="GlTFMaterialWriter.h">
+      <Filter>Header Files</Filter>
+    </None>
+    <None Include="python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="python\glTFShaderWriter.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <CopyFileToFolders Include="plugInfo.json">
+      <Filter>Source Files</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="RegisterPlugin.ms">
+      <Filter>Source Files</Filter>
+    </CopyFileToFolders>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Source Files</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj
new file mode 100644
index 0000000..c1d1cf4
--- /dev/null
+++ b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>SpherePrimWriterPlugin</ProjectName>
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{68768A54-4E41-4C50-92BC-3D1930ECB8B3}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmaxUsdSample.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <TargetName>SpherePrimWriter</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)\Contents\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>MNMath.lib;mesh.lib;maxutil.lib;paramblk2.lib;geom.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <ClCompile>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>../silence_usd_warnings.h</ForcedIncludeFiles>
+    </ClCompile>
+    <PostBuildEvent>
+      <Command>@echo Do not forget to update "$(OutDir)RegisterPlugin.ms" in order to load the C++ version of the plugin.</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <None Include="SpherePrimWriter.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="SpherePrimWriter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\SpherePrimWriter.py">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="PackageContents.xml">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>..\%(Filename)%(Extension)</TargetPath>
+    </None>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj.filters b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj.filters
new file mode 100644
index 0000000..ca17f11
--- /dev/null
+++ b/samples/SpherePrimWriterSample/SpherePrimWriterPlugin.vcxproj.filters
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="SpherePrimWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="SpherePrimWriter.h">
+      <Filter>Header Files</Filter>
+    </None>
+    <None Include="Contents\plugInfo.json">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\python\SpherePrimWriter.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{dd38d7f3-3c3d-435f-91f0-4942c731cd56}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{1c1443d9-57da-4918-a1e4-1458209a98af}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{0a465c0d-eacc-4ed1-a273-97598cf28a73}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Contents">
+      <UniqueIdentifier>{e225c4eb-e34d-4634-a702-f847f5d799e3}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Source Files</Filter>
+    </Xml>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/USD.props b/samples/USD.props
new file mode 100644
index 0000000..9c663bd
--- /dev/null
+++ b/samples/USD.props
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+	xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+	<ImportGroup Label="PropertySheets">
+		<Import Project="./3dsmaxUsdSample.common.settings.props" Condition="$(HasImportedCommonProps) != '1'" />
+	</ImportGroup>
+
+	<PropertyGroup Label="UserMacros">
+		<PxrUsdRoot Condition="'$(MaxUsdDevKit)'!='' and '$(PxrUsdRoot)'==''">$(MaxUsdDevKit)\Pixar_USD</PxrUsdRoot>
+		<PxrUsdRoot Condition="'$(VersionTarget)'&gt;'2025' and '$(PxrUsdRoot)'==''">$(Artifacts)\Pixar_USD</PxrUsdRoot>
+		<PxrUsdRoot Condition="'$(VersionTarget)'&lt;'2026' and '$(PxrUsdRoot)'=='' and '$(IsProjectInDevTree)'=='false'">$(Artifacts)\Pixar_USD</PxrUsdRoot>
+		<PxrUsdRoot Condition="'$(VersionTarget)'&lt;'2026' and '$(PxrUsdRoot)'==''">$(Artifacts)\Pixar_USD\Release</PxrUsdRoot>
+		<Pixar_USDInc>$(PxrUsdRoot)\include</Pixar_USDInc>
+		<Pixar_USDLib>$(PxrUsdRoot)\lib</Pixar_USDLib>
+		<BoostInc Condition="'$(VersionTarget)'=='2026' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_82</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'=='2025' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_81</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'=='2024' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_76</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'&lt;'2024' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_70</BoostInc>
+		<BoostLib Condition="'$(BoostLib)'==''">$(Pixar_USDLib)</BoostLib>
+		<PythonLocation Condition="'$(MaxUsdDevKit)'!=''and '$(PythonLocation)'==''">$(MaxUsdDevKit)\Pixar_USD</PythonLocation>
+		<PythonLocation Condition="'$(PythonLocation)'==''">$(Artifacts)\Python</PythonLocation>
+		<PythonInc>$(PythonLocation)\Include</PythonInc>
+		<PythonLibs>$(PythonLocation)\libs</PythonLibs>
+		<MaxUSDLibFolder Condition="'$(IsProjectInDevTree)'=='true'">$(RepoRootDir)\build\lib\$(Platform)\$(Configuration)\$(VersionTarget)\</MaxUSDLibFolder>
+		<MaxUSDLibFolder Condition="'$(IsProjectInDevTree)'=='false'">$(SolutionDir)\..\maxusd\lib</MaxUSDLibFolder>
+		<MaxUSDIncludeFolder Condition="'$(IsProjectInDevTree)'=='true'">$(SrcDir)</MaxUSDIncludeFolder>
+        <MaxUSDIncludeFolder Condition="'$(IsProjectInDevTree)'=='false'">$(SolutionDir)\..\maxusd\include</MaxUSDIncludeFolder>
+	</PropertyGroup>
+	<PropertyGroup Condition="$(VersionTarget)&gt;=2023">
+	    <ExternalIncludePath>$(PxrUsdRoot)\include\;$(VC_IncludePath);$(WindowsSDK_IncludePath)</ExternalIncludePath>
+	</PropertyGroup>
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2023">USD_VERSION_21_11;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<!-- Starting with 3dsMax 2024, one USD version per 3dsMax release. -->
+			<PreprocessorDefinitions Condition="$(VersionTarget)==2024">USD_VERSION_22_11;%(PreprocessorDefinitions)</PreprocessorDefinitions> 
+			<PreprocessorDefinitions Condition="$(VersionTarget)&gt;=2025">USD_VERSION_23_08;%(PreprocessorDefinitions)</PreprocessorDefinitions> 
+		</ClCompile>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(SolutionDir);$(BoostInc);$(PythonInc);$(Pixar_USDInc);$(MaxUSDIncludeFolder);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+			<PreprocessorDefinitions>_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING;NOMINMAX=1;TBB_SUPPRESS_DEPRECATED_MESSAGES;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&gt;=2025">BOOST_LIB_TOOLSET="vc142";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2024">BOOST_LIB_TOOLSET="vc141";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="'$(Configuration)'=='Debug'">BOOST_LINKING_PYTHON=1;TBB_USE_DEBUG=1;BOOST_DEBUG_PYTHON=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2023">_SILENCE_EXPERIMENTAL_FILESYSTEM_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<DisableSpecificWarnings>4003;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+			<AdditionalOptions Condition="$(VersionTarget)&lt;=2022">/experimental:external /external:I $(PxrUsdRoot)\include\ /external:W0 %(AdditionalOptions)</AdditionalOptions>
+			<AdditionalOptions Condition="$(VersionTarget)&gt;=2024">/Zc:__cplusplus</AdditionalOptions>
+		</ClCompile>
+		<ClCompile Condition="'$(Configuration)'=='$(ConfigHybrid)'">
+			<!-- Optimization is disabled for all configs except Release -->
+			<Optimization>Disabled</Optimization>
+			<PreprocessorDefinitions>;_HYBRID;IS_HYBRID;SECURE_SCL=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<!--
+			Boost does not like us having runtime checks (RTC) with non debug build.
+			Thus Microsoft documentation only states that Optimizations needs to be disabled (as done for hybrid), doing no mention of debug vs release build.
+			Disable RTC as it the only way to build hybrid.
+		-->
+			<BasicRuntimeChecks>Default</BasicRuntimeChecks>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(Pixar_USDLib);$(PythonLibs);$(MaxUSDLibFolder);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+			<AdditionalDependencies>core.lib;maxutil.lib;maxUsd.lib;3dsmax_usd.lib;3dsmax_sdf.lib;3dsmax_tf.lib;3dsmax_ar.lib;3dsmax_arch.lib;3dsmax_garch.lib;3dsmax_gf.lib;3dsmax_glf.lib;3dsmax_hd.lib;3dsmax_hdSt.lib;3dsmax_hdx.lib;3dsmax_hf.lib;3dsmax_kind.lib;3dsmax_sdr.lib;3dsmax_ndr.lib;3dsmax_plug.lib;3dsmax_trace.lib;3dsmax_usdGeom.lib;3dsmax_usdImaging.lib;3dsmax_usdImagingGL.lib;3dsmax_usdLux.lib;3dsmax_vt.lib;3dsmax_work.lib;3dsmax_usdUtils.lib;3dsmax_usdShade.lib;3dsmax_usdUI.lib;%(AdditionalDependencies)</AdditionalDependencies>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/samples/UserDataExportChaserSample/Contents/RegisterPlugin.ms b/samples/UserDataExportChaserSample/Contents/RegisterPlugin.ms
new file mode 100644
index 0000000..40034da
--- /dev/null
+++ b/samples/UserDataExportChaserSample/Contents/RegisterPlugin.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Registers the User Data Export Chaser to USD Plug Registry
+ * This script is ran as part of the "post-start-up scripts parts"
+ * This is necessary to ensure that USD can register the plugin properly, and load the associated dll or python script when the time is right.
+ * Loading the USD plugin's DLL before the USD plugin object Load() is called can cause issues/crash.
+ * This script registers either the python or the c++ export chaser. Comment/uncomment the file accordingly to the one you want to load.
+ * Both could be registered at the same time without problem, but only one would ever be executed.
+ * For the purpose of this sample we demonstrate how to load a c++ and a python chaser.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addMyMaxUsdPlugin = 
+(
+	pysys = python.import("sys")
+	pyos = python.import("os")
+	
+	scriptPath = getThisScriptFilename()
+	pluginPath = pathConfig.removePathLeaf scriptPath
+
+	-- note: either use the Python (default) or the C++ version of the plugin
+	-- You must comment/uncomment the respective maxscript code in the sections below
+
+	-- [section python - start]
+	-- Load the python prim reader
+	pluginPath = pluginPath + "\\python\\plugInfo.json"
+	-- The plugin script location must part of the Python path
+	pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+	-- [section python - end]
+	
+	-- [section c++ - start]
+	-- Load the c++ prim reader
+	/**
+	 * pluginPath = pluginPath + "\\plugInfo.json"
+	 */
+	-- [section c++ - end]
+
+	plugRegistry = pyUsdPlug.Registry()
+	plugRegistry.RegisterPlugins pluginPath
+)
+
+addMyMaxUsdPlugin()
+
+)
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/Contents/plugInfo.json b/samples/UserDataExportChaserSample/Contents/plugInfo.json
new file mode 100644
index 0000000..3d1ee85
--- /dev/null
+++ b/samples/UserDataExportChaserSample/Contents/plugInfo.json
@@ -0,0 +1,21 @@
+{
+   # Comments are allowed and indicated by a hash at the start of a
+   # line or after spaces and tabs.  They continue to the end of line.
+   # Blank lines are okay, too.
+   "Plugins":[
+      {
+         "Info":{
+            # Max specific token
+            "MaxUsd":{
+               # The ExportChaser key is all that is need for the plugin to be found and loaded on export.
+               "ExportChaser" : {},
+               # The JobContextPlugin key is all that is needed for the context plugin to be found and loaded on export.
+               "JobContextPlugin": {}
+            }
+         },
+         "Name": "UserDataExportChaser",
+         "Type": "library",
+         "LibraryPath": "UserDataExportChaser.dll"
+      }
+   ]
+ }
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/Contents/python/UserDataExportChaser.py b/samples/UserDataExportChaserSample/Contents/python/UserDataExportChaser.py
new file mode 100644
index 0000000..db59e43
--- /dev/null
+++ b/samples/UserDataExportChaserSample/Contents/python/UserDataExportChaser.py
@@ -0,0 +1,187 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+from pymxs import runtime as mxs
+
+import os, sys
+from enum import Enum
+import traceback
+
+# Export Chaser sample that adds Custom Data to the exported prims if the specified user
+# property or custom attribute are found in the corresponding Node. The sampled chaser
+# acts with default data or using the arguments that may have been passed to the chaser.
+
+# the supported data types by the UserDataExportChaserSample
+class PropertyType(Enum):
+    USER_PROP = 1
+    CUSTOM_DATA = 2
+
+
+class userDataExportChaserSample(maxUsd.ExportChaser):
+    
+    default_property = { PropertyType.USER_PROP : ["myUserProperty"], PropertyType.CUSTOM_DATA : [] }
+
+	# constructor - can be customized for the Export Chaser requirements
+	# in the provided sample, it receives the stage and Prims to Node map, which are 
+	# the minimal arguments for a functional chaser, and the chaser arguments, which are
+	# not mandatory but can be use to parametrize the chaser.
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(userDataExportChaserSample, self).__init__(factoryContext, *args, **kwargs)
+
+        self.properties = userDataExportChaserSample.default_property
+
+        # retrieve the specified arguments to be used with the export chaser
+        # the chaser's arguments can be specified for different chasers
+        # the returned arguments are in the form of a dictionary
+        if 'UserData' in factoryContext.GetJobArgs().GetAllChaserArgs():
+            chaser_args = factoryContext.GetJobArgs().GetAllChaserArgs()['UserData']
+            for type, names in chaser_args.items():
+                if type =="user":
+                    self.properties[PropertyType.USER_PROP] = []
+                    for name in names.split(','):
+                        self.properties[PropertyType.USER_PROP].append(name)
+                elif type == "custom":
+                    self.properties[PropertyType.CUSTOM_DATA] = []
+                    for name in names.split(','):
+                        self.properties[PropertyType.CUSTOM_DATA].append(name)
+
+        # retrieve the export mapping dictionary for the stage
+        # the dictionary maps the resulting USD prim paths to their MAXScript NodeHandles origin
+        self.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+
+        # retrieve the USD stage being written to
+        self.stage = factoryContext.GetStage()
+
+        # retrieve the jobContextOptions the user may have modified through the UI
+        self.contextOptions = factoryContext.GetJobArgs().GetJobContextOptions("CustomDemoContext")
+
+	# processing that needs to run after the main 3ds Max USD export loop.
+    def PostExport(self):
+        
+        # the jobContextOptions the user may have modified through the UI 
+        if self.contextOptions.get('do_something_special', False):
+            # do something Special
+            pass
+
+        try:
+            for prim_path, node_handle in self.primsToNodeHandles.items():
+                node = mxs.maxOps.getNodeByHandle(node_handle)
+                prim = self.stage.GetPrimAtPath(prim_path)
+                
+                for type, names in self.properties.items():
+                    for name in names:
+                        if type == PropertyType.USER_PROP:
+                            prop = mxs.getUserProp(node, name)
+                            # verify the property exists
+                            if prop == None:
+                                continue
+                            if mxs.classOf(prop) == mxs.String:
+                                # strip the quoting marks from the string
+                                prop = prop[1:len(prop)-1]
+                            prim.SetCustomDataByKey(name, prop)
+                
+                        elif type == PropertyType.CUSTOM_DATA:
+                            if mxs.isProperty(node, name):
+                                prop = mxs.getProperty(node, name)
+                                prim.SetCustomDataByKey(name, prop)
+                
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            return False
+        
+        return True
+
+
+# Job Contexts allow to customize several options during a maxUsd export
+#   - 'chaserNames'
+#   - 'chaserArgs'
+#   - 'convertMaterialsTo'
+#
+# This sample will add a "Custom Context Demo" option in the "PlugIn configuration" drop down in maxUsd exports
+def CustomExportJobContextSample():
+    # build a dictionary of the options to set using the context
+    extraArgs = {}
+    
+    # The UserData chaser needs to be enabled in this job context
+    extraArgs['chaserNames']  = ['UserData']
+    extraArgs['chaserArgs'] = [['UserData', 'user', 'myUserFloatProperty,myUserProperty'], ['UserData', 'custom', 'inGame']]
+    return extraArgs
+
+
+
+maxUsd.ExportChaser.Register(userDataExportChaserSample, "UserData", "User Data Python DEMO", "Chaser to export user data along the exported USD prims")
+
+maxUsd.JobContextRegistry.RegisterExportJobContext("CustomDemoContext", "Custom Context Python DEMO", "Custom plug-in configuration", CustomExportJobContextSample)
+
+# Uncomment code below to export a scene using the export chaser sample
+# The code prepares the exporter options to
+#  - export to a USD file in ASCII
+#  - sets the ChaserNames to only use 'UserData'; the name of export chaser sample
+#  - sets the arguments for the 'UserData' export chaser
+#    - the list of user property ('user') to export as USD Custom Data; comma separated property names
+#    - the list of custom attribute ('custom') to export as USD Custom Data; comma separated property names
+
+#opt = mxs.USDExporter.CreateOptions()
+#opt.FileFormat = mxs.Name("ascii")
+#opt.RootPrimPath = "/"
+#opt.ChaserNames = mxs.Array("UserData")
+#opt.AllChaserArgs = mxs.Array("UserData", "user", "myUserFloatProperty,myUserProperty", "UserData", "custom", "inGame")
+#mxs.USDExporter.ExportFile( "c:\\temp\\myscene_with_custom_data.usd",
+#                            exportOptions=opt)
+
+def showJobExportOptions(jobName, parentUI, contextOptions):
+    # 3dsMax 2025 and later is using PySide6, while 3dsMax 2024 and earlier is
+    # using PySide2 - so we need to check for both
+    try: 
+        import PySide6.QtWidgets as QtWidgets
+    except ImportError:
+        try: 
+            import PySide2.QtWidgets as QtWidgets
+        except ImportError as err:
+            print(f"Could not import QtWidgets from neither PySide6 nor PySide2 {err=}.")
+            raise err
+    
+    try: 
+        dlg = QtWidgets.QDialog(parentUI)
+        dlg.setWindowTitle(f"Export Options for {jobName}")
+        dlg.setModal(True)
+        dlg.setLayout(QtWidgets.QVBoxLayout())
+
+        checkBoxSpecial = QtWidgets.QCheckBox("Do something Special")
+        checkBoxSpecial.setChecked(contextOptions.get('do_something_special', False))
+        dlg.layout().addWidget(checkBoxSpecial)
+
+        # ...
+
+        buttonBox = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
+        buttonBox.accepted.connect(dlg.accept)
+        buttonBox.rejected.connect(dlg.reject)
+        dlg.layout().addWidget(buttonBox, 0)
+
+        if dlg.exec() == QtWidgets.QDialog.Accepted:
+            contextOptions['do_something_special'] = checkBoxSpecial.isChecked()
+            #...
+
+    except Exception as err:
+        print(f"Unexpected {err=}, {type(err)=}")
+
+    return contextOptions
+
+maxUsd.JobContextRegistry.SetExportOptionsUI("CustomDemoContext", showJobExportOptions)
diff --git a/samples/UserDataExportChaserSample/Contents/python/plugInfo.json b/samples/UserDataExportChaserSample/Contents/python/plugInfo.json
new file mode 100644
index 0000000..fe0de14
--- /dev/null
+++ b/samples/UserDataExportChaserSample/Contents/python/plugInfo.json
@@ -0,0 +1,23 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.   
+    "Plugins": [
+      {
+         "Info": {
+             # Max specific token
+             "MaxUsd": {
+                # The ExportChaser key is all that is needed for the plugin to be found and loaded on export.
+                "ExportChaser": {},
+                # The JobContextPlugin key is all that is needed for the context plugin to be found and loaded on export.
+                "JobContextPlugin": {}
+            }
+         },
+         # This is the name of the python script that implements the export chaser.
+         # This file needs to be found on runtime by python, it's path must be added
+         # to the python paths. See RegisterPlugin.ms for an exemple on how to do that.
+         "Name": "UserDataExportChaser",
+         "Type": "python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/DLLEntry.h b/samples/UserDataExportChaserSample/DLLEntry.h
new file mode 100644
index 0000000..c4dfce4
--- /dev/null
+++ b/samples/UserDataExportChaserSample/DLLEntry.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/samples/UserDataExportChaserSample/DllEntry.cpp b/samples/UserDataExportChaserSample/DllEntry.cpp
new file mode 100644
index 0000000..046dabe
--- /dev/null
+++ b/samples/UserDataExportChaserSample/DllEntry.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/ExportOptionsDialog.cpp b/samples/UserDataExportChaserSample/ExportOptionsDialog.cpp
new file mode 100644
index 0000000..309c491
--- /dev/null
+++ b/samples/UserDataExportChaserSample/ExportOptionsDialog.cpp
@@ -0,0 +1,94 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "ExportOptionsDialog.h"
+
+#include "UI_ExportOptionsDialog.h"
+
+#include <string.h>
+using namespace std::string_literals;
+
+#include <pxr/base/vt/value.h>
+
+ExportOptionsDialog::ExportOptionsDialog(QWidget* parent /* = nullptr */)
+    : QDialog(parent)
+    , ui(new Ui::ExportOptionsDialog())
+{
+    ui->setupUi(this);
+}
+
+ExportOptionsDialog::~ExportOptionsDialog() = default;
+
+pxr::VtDictionary ExportOptionsDialog::ShowOptionsDialog(
+    const std::string&       jobContext,
+    QWidget*                 parent,
+    const pxr::VtDictionary& options)
+{
+    auto dlg = new ExportOptionsDialog(parent);
+    if (!dlg) {
+        return options;
+    }
+
+    if (auto v = options.GetValueAtPath({ "Option A"s })) {
+        if (v->CanCast<bool>()) {
+            dlg->ui->radioButton_Option_A->setChecked(v->Get<bool>());
+        }
+    }
+
+    if (auto v = options.GetValueAtPath({ "Option B"s })) {
+        if (v->CanCast<bool>()) {
+            dlg->ui->radioButton_Option_B->setChecked(v->Get<bool>());
+        }
+    }
+
+    if (auto v = options.GetValueAtPath({ "Greeting"s, "Greet User"s })) {
+        if (v->CanCast<bool>()) {
+            dlg->ui->groupBox_Greeting->setChecked(v->Get<bool>());
+        }
+    }
+
+    if (auto v = options.GetValueAtPath({ "Greeting"s, "User Name"s })) {
+        if (v->CanCast<std::string>()) {
+            dlg->ui->lineEdit_UserName->setText(QString::fromStdString(v->Get<std::string>()));
+        }
+    }
+
+    if (auto v = options.GetValueAtPath({ "Greeting"s, "Formal"s })) {
+        if (v->CanCast<bool>()) {
+            dlg->ui->checkBox_FormalGreeting->setChecked(v->Get<bool>());
+        }
+    }
+
+    if (dlg->exec() != QDialog::Accepted) {
+        return options;
+    }
+
+    pxr::VtDictionary modified_options = options;
+    modified_options.SetValueAtPath(
+        { "Option A"s }, pxr::VtValue(dlg->ui->radioButton_Option_A->isChecked()));
+    modified_options.SetValueAtPath(
+        { "Option B"s }, pxr::VtValue(dlg->ui->radioButton_Option_B->isChecked()));
+
+    modified_options.SetValueAtPath(
+        { "Greeting"s, "Greet User"s }, pxr::VtValue(dlg->ui->groupBox_Greeting->isChecked()));
+    modified_options.SetValueAtPath(
+        { "Greeting"s, "User Name"s },
+        pxr::VtValue(dlg->ui->lineEdit_UserName->text().toStdString()));
+    modified_options.SetValueAtPath(
+        { "Greeting"s, "Formal"s }, pxr::VtValue(dlg->ui->checkBox_FormalGreeting->isChecked()));
+
+    return modified_options;
+}
diff --git a/samples/UserDataExportChaserSample/ExportOptionsDialog.h b/samples/UserDataExportChaserSample/ExportOptionsDialog.h
new file mode 100644
index 0000000..3f3ff23
--- /dev/null
+++ b/samples/UserDataExportChaserSample/ExportOptionsDialog.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <pxr/base/vt/dictionary.h>
+
+#include <QtWidgets/qdialog.h>
+#include <QtWidgets/qwidget.h>
+
+namespace Ui {
+class ExportOptionsDialog;
+}
+
+class ExportOptionsDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ExportOptionsDialog(QWidget* parent = nullptr);
+    ~ExportOptionsDialog();
+
+    static pxr::VtDictionary ShowOptionsDialog(
+        const std::string&       jobContext,
+        QWidget*                 parent,
+        const pxr::VtDictionary& options);
+
+private:
+    const std::unique_ptr<Ui::ExportOptionsDialog> ui;
+};
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/ExportOptionsDialog.ui b/samples/UserDataExportChaserSample/ExportOptionsDialog.ui
new file mode 100644
index 0000000..d16111d
--- /dev/null
+++ b/samples/UserDataExportChaserSample/ExportOptionsDialog.ui
@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExportOptionsDialog</class>
+ <widget class="QDialog" name="ExportOptionsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>338</width>
+    <height>225</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Custom Context C++ DEMO Export Options</string>
+  </property>
+  <property name="modal">
+   <bool>true</bool>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="groupBox_Additional_Options">
+     <property name="title">
+      <string>Additional Options</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QRadioButton" name="radioButton_Option_A">
+        <property name="text">
+         <string>Option A</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radioButton_Option_B">
+        <property name="text">
+         <string>Option B</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBox_Greeting">
+     <property name="title">
+      <string>Greet the User on Export</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="lineEdit_UserName"/>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Name:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" colspan="2">
+       <widget class="QCheckBox" name="checkBox_FormalGreeting">
+        <property name="text">
+         <string>Use Formal Greeting</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>0</width>
+       <height>0</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ExportOptionsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>390</x>
+     <y>268</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>39</x>
+     <y>283</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>ExportOptionsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>480</x>
+     <y>264</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>482</x>
+     <y>286</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/samples/UserDataExportChaserSample/PackageContents.xml b/samples/UserDataExportChaserSample/PackageContents.xml
new file mode 100644
index 0000000..0014284
--- /dev/null
+++ b/samples/UserDataExportChaserSample/PackageContents.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationPackage SchemaVersion="1.0"
+	AutodeskProduct="3ds Max"
+	Name="UserPropertyExportChaser"
+	Description="Max USD User Property Export Chaser"
+	AppVersion="1.0.0"
+	ProductType="Application"
+	Author="Autodesk"
+	ProductCode="*"
+	UpgradeCode="{d8e8e17c-55b7-4296-b153-56a8b84d2040}">
+	<CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+	<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+	<Components Description="post-start-up scripts parts">
+		<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+		<ComponentEntry ModuleName="./Contents/RegisterPlugin.ms" />
+	</Components>
+</ApplicationPackage>
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/SceneFiles/UserDataChaserSample.max b/samples/UserDataExportChaserSample/SceneFiles/UserDataChaserSample.max
new file mode 100644
index 0000000..a50a374
--- /dev/null
+++ b/samples/UserDataExportChaserSample/SceneFiles/UserDataChaserSample.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2bd4ad6a0716f1df246b1efe8140c5933039cbc3710b11a598fec53d3cea9483
+size 692224
diff --git a/samples/UserDataExportChaserSample/UserDataExportChaser.cpp b/samples/UserDataExportChaserSample/UserDataExportChaser.cpp
new file mode 100644
index 0000000..3118a53
--- /dev/null
+++ b/samples/UserDataExportChaserSample/UserDataExportChaser.cpp
@@ -0,0 +1,320 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "ExportOptionsDialog.h"
+
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Builders/SceneBuilderOptions.h>
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Chaser/ExportChaser.h>
+#include <MaxUsd/Chaser/ExportChaserRegistry.h>
+
+#include <maxscript/mxsplugin/mxsCustomAttributes.h>
+
+#include <boost/tokenizer.hpp>
+#include <custattrib.h>
+#include <icustattribcontainer.h>
+#include <object.h>
+#include <string.h>
+using namespace std::string_literals;
+
+// Data types supported by the UserDataExportChaserSample
+enum class PropertyType : int
+{
+    USER_PROP = 1,  // "user"
+    CUSTOM_DATA = 2 // "custom"
+};
+
+// The UserDataExportChaserSample class
+// This Export Chaser sample adds Custom Data to the exported prims if the specified user
+// property or custom attribute are found in the corresponding Node. The sample chaser
+// acts with default data or using the arguments that may have been passed to the chaser.
+class UserDataExportChaserSample : public pxr::MaxUsdExportChaser
+{
+public:
+    // Constructor - can be customized for the Export Chaser requirements.
+    // In the provided sample it receives the stage and Prims to Node map, which are
+    // the minimal arguments for a functional chaser, and the chaser arguments, which are
+    // not mandatory but can be used to parameterize the chaser.
+    UserDataExportChaserSample(
+        pxr::UsdStagePtr                                                      stage,
+        const pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap& primToNodeMap,
+        const MaxUsd::USDSceneBuilderOptions::ChaserArgs&                     args,
+        const pxr::VtDictionary&                                              jobContextOptions);
+
+    // Processing that needs to run after the main 3ds Max USD export loop.
+    bool PostExport() override;
+
+private:
+    // The exported stage
+    pxr::UsdStagePtr stage;
+    // Maps full USD prim paths to INodes
+    const pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap& primToNodeMap;
+    // potentially user-customized jobContext options.
+    const pxr::VtDictionary& jobContextOptions;
+
+    // sample specific parameters
+    // maps the data to be exported as Custom Data for the prims
+    typedef std::map<PropertyType, std::set<std::string>> PropertyMap;
+    PropertyMap                                           dataToExport;
+};
+
+// Add the using statement here to make the export chaser factory macro work
+PXR_NAMESPACE_USING_DIRECTIVE
+// Macro to register the Export Chaser. Defines a factory method for the chaser name. The 'ctx' will
+// be of type MaxUsdExportChaserRegistry::FactoryContext. The method should return a
+// MaxUsdExportChaser*. There are no guarantees about the lifetime of 'ctx'. It is also very
+// important to set the project option "Remove unreferenced code and data" to NO, not doing so could
+// cause the Macro to be optimized out and the Export Chaser to never be properly registered.
+PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY(
+    UserData,
+    "User Data C++ DEMO",
+    "Chaser to export user data along the exported USD prims",
+    ctx)
+{
+    // Fetching the export chaser parameters
+    // The chaser arguments are mapped using their registration chaser name (first arg of the macro)
+    MaxUsd::USDSceneBuilderOptions::ChaserArgs myArgs;
+    TfMapLookup(ctx.GetJobArgs().GetAllChaserArgs(), "UserData", &myArgs);
+    const pxr::VtDictionary& jobContextOptions
+        = ctx.GetJobArgs().GetJobContextOptions(TfToken("CustomDemoContext"));
+    return new UserDataExportChaserSample(
+        ctx.GetStage(), ctx.GetPrimToNodeMap(), myArgs, jobContextOptions);
+}
+
+UserDataExportChaserSample::UserDataExportChaserSample(
+    pxr::UsdStagePtr                                                      stage,
+    const pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap& primToNodeMap,
+    const MaxUsd::USDSceneBuilderOptions::ChaserArgs&                     args,
+    const pxr::VtDictionary&                                              jobContextOptions)
+    : stage(stage)
+    , primToNodeMap(primToNodeMap)
+    , jobContextOptions(jobContextOptions)
+{
+    // Default configuration
+    dataToExport
+        = { { PropertyType::USER_PROP, { "myUserProperty" } }, { PropertyType::CUSTOM_DATA, {} } };
+
+    // Parsing the specific export chaser arguments
+    boost::char_separator<char> sep(",");
+    for (std::pair<std::string, std::string> item : args) {
+        if (item.first == "user") {
+            dataToExport[PropertyType::USER_PROP].clear();
+            boost::tokenizer<boost::char_separator<char>> tokens(item.second, sep);
+            for (auto name : tokens) {
+                dataToExport[PropertyType::USER_PROP].insert(name);
+            }
+        } else if (item.first == "custom") {
+            dataToExport[PropertyType::CUSTOM_DATA].clear();
+            boost::tokenizer<boost::char_separator<char>> tokens(item.second, sep);
+            for (auto name : tokens) {
+                dataToExport[PropertyType::CUSTOM_DATA].insert(name);
+            }
+        } else {
+            TF_WARN(
+                "Wrong user data type ('%s') passed as argument to UserPropertyExportChaser",
+                item.first.c_str());
+        }
+    }
+
+    if (!jobContextOptions.empty()) {
+        if (auto greetUser = jobContextOptions.GetValueAtPath({ "Greeting"s, "Greet User"s })) {
+            if (greetUser->Get<bool>()) {
+                std::string username;
+                if (auto userNameV
+                    = jobContextOptions.GetValueAtPath({ "Greeting"s, "User Name"s })) {
+                    if (userNameV->CanCast<std::string>()) {
+                        username = userNameV->Get<std::string>();
+                    }
+                }
+                bool formal = false;
+                if (auto formalV = jobContextOptions.GetValueAtPath({ "Greeting"s, "Formal"s })) {
+                    if (formalV->CanCast<bool>()) {
+                        formal = formalV->Get<bool>();
+                    }
+                }
+                std::string option;
+                if (auto optionAV = jobContextOptions.GetValueAtPath({ "Option A"s })) {
+                    if (optionAV->CanCast<bool>() && optionAV->Get<bool>()) {
+                        option = "Option A";
+                    }
+                }
+                bool optionB = false;
+                if (auto optionBV = jobContextOptions.GetValueAtPath({ "Option B"s })) {
+                    if (optionBV->CanCast<bool>() && optionBV->Get<bool>()) {
+                        option = "Option B";
+                    }
+                }
+
+                std::string greeting;
+                if (formal) {
+                    time_t now = time(0);
+                    tm*    localtm = localtime(&now);
+                    greeting = (localtm->tm_hour > 12) ? "Good Afternoon" : "Good Morning";
+                } else {
+                    greeting = "Hi";
+                }
+                static constexpr const char* message = "{0} '{1}' - You have chosen {2}";
+                MaxUsd::Log::Info(message, greeting.c_str(), username.c_str(), option.c_str());
+            }
+        }
+    }
+}
+
+bool UserDataExportChaserSample::PostExport()
+{
+    // Cycle through the exported prim/node
+    for (std::pair<SdfPath, INode*> exported : primToNodeMap) {
+        pxr::UsdPrim prim = stage->GetPrimAtPath(exported.first);
+        INode*       node = exported.second;
+
+        // Are any of the specified user properties found in the Node
+        for (std::string propName : dataToExport[PropertyType::USER_PROP]) {
+            auto mxsPropName = MaxUsd::UsdStringToMaxString(propName);
+            if (node->UserPropExists(mxsPropName)) {
+                TSTR value;
+                node->GetUserPropString(mxsPropName, value);
+
+                if (_tcsicmp(value, _T("true")) == 0) {
+                    prim.SetCustomDataByKey(pxr::TfToken(propName), pxr::VtValue(true));
+                } else if (_tcsicmp(value, _T("false")) == 0) {
+                    prim.SetCustomDataByKey(pxr::TfToken(propName), pxr::VtValue(false));
+                } else {
+                    // Note - to simplify the chaser sample implementation, the user property
+                    // conversion to numerical values was not completed. It will be written as a
+                    // simple string. The same chaser written in Python properly handles this
+                    // situation however.
+                    auto valueString = MaxUsd::MaxStringToUsdString(value);
+                    // Strip the quoting marks from the string (if the property was originally a
+                    // string)
+                    if (*valueString.begin() == '\"' && *(valueString.end() - 1) == '\"') {
+                        valueString.erase(valueString.begin());
+                        valueString.erase(valueString.end() - 1);
+                    }
+                    prim.SetCustomDataByKey(pxr::TfToken(propName), pxr::VtValue(valueString));
+                }
+            }
+        }
+
+        // For the purpose of the sample, the chaser finds the custom attributes only on
+        // the base level, not on the modifiers or materials of the node
+        BaseObject*           obj = node->GetObjectRef();
+        ICustAttribContainer* cc = obj->GetCustAttribContainer();
+        if (!cc) {
+            continue;
+        }
+        // Are any of the specified custom attributes found in the Node
+        for (std::string propName : dataToExport[PropertyType::CUSTOM_DATA]) {
+            auto mxsPropName = MaxUsd::UsdStringToMaxString(propName);
+            for (int i = 0; i < cc->GetNumCustAttribs(); i++) {
+                CustAttrib* ca = cc->GetCustAttrib(i);
+                if (!ca) {
+                    continue;
+                }
+                MSCustAttrib* msCA = (MSCustAttrib*)ca->GetInterface(I_SCRIPTEDCUSTATTRIB);
+                if (!msCA) {
+                    continue;
+                }
+
+                for (int j = 0; j < ca->NumParamBlocks(); ++j) {
+                    IParamBlock2* pb2 = ca->GetParamBlock(j);
+                    if (!pb2) {
+                        continue;
+                    }
+                    ParamID paramId = MaxUsd::FindParamId(pb2, mxsPropName);
+                    // If this specific attribute doesn't exist, we skip to look for it in the next
+                    // PB
+                    if (paramId == -1) {
+                        continue;
+                    }
+
+                    // Found the attribute, extract the value and write the data
+                    {
+                        const ParamDef& paramDef = pb2->GetParamDef(paramId);
+                        Interval        iv = FOREVER;
+                        bool            hasFoundParam = false;
+                        switch (paramDef.type) {
+                        case TYPE_BOOL: {
+                            int boolVal = 0;
+                            hasFoundParam = pb2->GetValue(paramId, 0, boolVal, iv);
+                            prim.SetCustomDataByKey(
+                                pxr::TfToken(propName),
+                                pxr::VtValue((boolVal == 0) ? false : true));
+                            break;
+                        }
+                        case TYPE_INT: {
+                            int strVal = false;
+                            hasFoundParam = pb2->GetValue(paramId, 0, strVal, iv);
+                            prim.SetCustomDataByKey(pxr::TfToken(propName), pxr::VtValue(strVal));
+                            break;
+                        }
+                        case TYPE_FLOAT: {
+                            float strVal = false;
+                            hasFoundParam = pb2->GetValue(paramId, 0, strVal, iv);
+                            prim.SetCustomDataByKey(pxr::TfToken(propName), pxr::VtValue(strVal));
+                            break;
+                        }
+                        case TYPE_STRING: {
+                            const wchar_t* strVal = L"";
+                            hasFoundParam = pb2->GetValue(paramId, 0, strVal, iv);
+                            prim.SetCustomDataByKey(
+                                pxr::TfToken(propName),
+                                pxr::VtValue(MaxUsd::MaxStringToUsdString(strVal)));
+                            break;
+                        }
+                        default:
+                            TF_WARN(
+                                "Unsupported Custom Attribute type for '%s' in "
+                                "UserPropertyExportChaser",
+                                propName.c_str());
+                            break;
+                        }
+                        // No need to search further, the attribute was found
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    return true;
+}
+
+REGISTER_EXPORT_JOB_CONTEXT_FCT(
+    CustomDemoContext,
+    "Custom Context C++ DEMO",
+    "Custom plug-in configuration")
+{
+    VtDictionary extraArgs;
+    extraArgs[MaxUsdSceneBuilderOptionsTokens->chaserNames]
+        = VtValue(std::vector<VtValue> { VtValue(std::string("UserData")) });
+    VtValue chaserArgUserProp(
+        std::vector<VtValue> { VtValue(std::string("UserData")),
+                               VtValue(std::string("user")),
+                               VtValue(std::string("myUserFloatProperty,myUserProperty")) });
+    VtValue chaserArgCustomProp(std::vector<VtValue> { VtValue(std::string("UserData")),
+                                                       VtValue(std::string("custom")),
+                                                       VtValue(std::string("inGame")) });
+    extraArgs[MaxUsdSceneBuilderOptionsTokens->chaserArgs]
+        = VtValue(std::vector<VtValue> { chaserArgUserProp, chaserArgCustomProp });
+
+    return extraArgs;
+}
+
+TF_REGISTRY_FUNCTION(MaxUsdJobContextRegistry)
+{
+    MaxUsdJobContextRegistry::GetInstance().SetExportOptionsUI(
+        "CustomDemoContext", &ExportOptionsDialog::ShowOptionsDialog);
+}
diff --git a/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj b/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj
new file mode 100644
index 0000000..7d33617
--- /dev/null
+++ b/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj
@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>UserDataExportChaserPlugin</ProjectName>
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{1EF31957-1C1A-4869-B52D-D733FE24F0A9}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmaxUsdSample.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <TargetName>UserDataExportChaser</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)\Contents\</OutDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(QtMsBuild)'=='' or !Exists('$(QtMsBuild)\qt.targets')">
+    <QtMsBuild>$(QtArtifacts)\QtMsBuild</QtMsBuild>
+  </PropertyGroup>
+  <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
+    <Message Importance="High" Text="QtMsBuild: could not locate qt.targets, qt.props; project may not build correctly." />
+  </Target>
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt_defaults.props')">
+    <Import Project="$(QtMsBuild)\qt_defaults.props" />
+  </ImportGroup>
+  <PropertyGroup Label="QtSettings">
+    <QtModules>widgets</QtModules>
+    <QtInstall>$(QtArtifacts)\Qt\$(QTVER)</QtInstall>
+  </PropertyGroup>
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.props')">
+    <Import Project="$(QtMsBuild)\qt.props" />
+  </ImportGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>$(QtInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>../silence_usd_warnings.h</ForcedIncludeFiles>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(QtLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>maxscrpt.lib;maxutil.lib;paramblk2.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <PostBuildEvent>
+      <Command>@echo Do not forget to update "$(OutDir)RegisterPlugin.ms" in order to load the C++ version of the plugin.</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+    <QtMoc Include="ExportOptionsDialog.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="ExportOptionsDialog.cpp" />
+    <ClCompile Include="UserDataExportChaser.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\UserDataExportChaser.py">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="PackageContents.xml">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>..\%(Filename)%(Extension)</TargetPath>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="ExportOptionsDialog.ui" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj.filters b/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj.filters
new file mode 100644
index 0000000..e50176a
--- /dev/null
+++ b/samples/UserDataExportChaserSample/UserDataExportChaser.vcxproj.filters
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="UserDataExportChaser.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ExportOptionsDialog.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{736bd8fe-eeb6-4c2b-a0ab-dc1037725910}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{c3509517-bd52-40a7-ab6f-a09227ec306b}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{a6749ed4-ce14-4a10-9eeb-afdaff80a895}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Contents">
+      <UniqueIdentifier>{4524682a-81be-441f-85c9-08dc74790ba1}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{02e68e56-c893-4fba-9bf2-1729355bc0b9}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\python\UserDataExportChaser.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="PackageContents.xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="ExportOptionsDialog.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="ExportOptionsDialog.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/CAMetaDataUtils.cpp b/samples/UserDataImportChaserSample/CAMetaDataUtils.cpp
new file mode 100644
index 0000000..97da605
--- /dev/null
+++ b/samples/UserDataImportChaserSample/CAMetaDataUtils.cpp
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CAMetaDataUtils.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+enum CAMetaDataCodes
+{
+    UnableToCreateMetadataObject
+};
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(
+        UnableToCreateMetadataObject, "Unable to define built-in USD Metadata object.");
+};
+
+namespace caMetaData {
+
+IMetaDataManager::MetaDataID getOrDefineCABuiltInMetaData(
+    const std::vector<std::pair<caMetaData::UsdMetaDataTypeCA, caMetaData::ParameterValue>>& cas)
+{
+    if (cas.empty()) {
+        return EmptyMetaDataID;
+    }
+
+    IMetaDataManager*                      maxMetaDataManager = IMetaDataManager::GetInstance();
+    Tab<IMetaDataManager::ParamDescriptor> tabParams;
+
+    for (const auto& ca : cas) {
+        auto def = getCAMetaDataDef(ca.first, ca.second.key);
+        tabParams.Append(1, &def.usdMetaDataParamDef);
+    }
+
+    TSTR                         errMsg = nullptr;
+    IMetaDataManager::MetaDataID usdBuiltInMetaData
+        = maxMetaDataManager->CreateMetaDataDefinition(_T("USD"), _T("USD"), tabParams, &errMsg);
+    if (usdBuiltInMetaData == EmptyMetaDataID) {
+        TF_ERROR(UnableToCreateMetadataObject, MaxUsd::MaxStringToUsdString(errMsg).c_str());
+    }
+
+    return usdBuiltInMetaData;
+}
+
+} // namespace caMetaData
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/CAMetaDataUtils.h b/samples/UserDataImportChaserSample/CAMetaDataUtils.h
new file mode 100644
index 0000000..ab6c5a8
--- /dev/null
+++ b/samples/UserDataImportChaserSample/CAMetaDataUtils.h
@@ -0,0 +1,97 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <IMetaData.h>
+
+namespace caMetaData {
+
+enum UsdMetaDataTypeCA
+{
+	CA_BOOL,
+	CA_INT,
+	CA_STR
+};
+
+struct ParameterValue
+{
+	std::wstring key = L"";
+	int intValue = 0;
+	bool boolValue = false;
+	std::wstring strValue = L"";
+};
+
+struct UsdMetaDataDefCA
+{
+	UsdMetaDataTypeCA usdMetaData;
+	const wchar_t* usdMetaDataKey;
+	IMetaDataManager::ParamDescriptor usdMetaDataParamDef;
+};
+
+static UsdMetaDataDefCA createCABoolMetaDataDef(const std::wstring& key)
+{
+	IMetaDataManager::ParamDescriptor metaDataParamDef;
+	metaDataParamDef.m_name = key.c_str();
+	metaDataParamDef.m_dataType = static_cast<ParamType2>(TYPE_BOOL);
+	metaDataParamDef.m_ctrlType = static_cast<ControlType2>(TYPE_SINGLECHECKBOX);
+	metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+
+	return UsdMetaDataDefCA{ UsdMetaDataTypeCA::CA_BOOL, key.c_str(), metaDataParamDef };
+}
+
+static UsdMetaDataDefCA createCAIntMetaDataDef(const std::wstring& key)
+{
+	IMetaDataManager::ParamDescriptor metaDataParamDef;
+	metaDataParamDef.m_name = key.c_str();
+	metaDataParamDef.m_dataType = static_cast<ParamType2>(TYPE_INT);
+	metaDataParamDef.m_ctrlType = TYPE_SLIDER;
+	metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+
+	return UsdMetaDataDefCA{ UsdMetaDataTypeCA::CA_INT, key.c_str(), metaDataParamDef };
+}
+
+
+static UsdMetaDataDefCA createCAStrMetaDataDef(const std::wstring& key)
+{
+	IMetaDataManager::ParamDescriptor metaDataParamDef;
+	metaDataParamDef.m_name = key.c_str();
+	metaDataParamDef.m_dataType = TYPE_STRING;
+	metaDataParamDef.m_ctrlType = TYPE_EDITBOX;
+	metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+
+	return UsdMetaDataDefCA{ UsdMetaDataTypeCA::CA_STR, key.c_str(), metaDataParamDef };
+}
+
+
+IMetaDataManager::MetaDataID getOrDefineCABuiltInMetaData(
+		const std::vector<std::pair<UsdMetaDataTypeCA, ParameterValue>> &cas);
+
+static const UsdMetaDataDefCA getCAMetaDataDef(UsdMetaDataTypeCA type, const std::wstring& key)
+{
+	switch (type)
+	{
+		case CA_BOOL:
+			return createCABoolMetaDataDef(key);
+		case CA_INT:
+			return createCAIntMetaDataDef(key);
+		case CA_STR:
+			return createCAStrMetaDataDef(key);
+		default:
+			return createCABoolMetaDataDef(L"not_found");
+	}
+}
+
+} // namespace caMetaData
diff --git a/samples/UserDataImportChaserSample/Contents/RegisterPlugin.ms b/samples/UserDataImportChaserSample/Contents/RegisterPlugin.ms
new file mode 100644
index 0000000..272f1b8
--- /dev/null
+++ b/samples/UserDataImportChaserSample/Contents/RegisterPlugin.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Registers the User Data Import Chaser to USD Plug Registry
+ * This script is ran as part of the "post-start-up scripts parts"
+ * This is necessary to ensure that USD can register the plugin properly, and load the associated dll or python script when the time is right.
+ * Loading the USD plugin's DLL before the USD plugin object Load() is called can cause issues/crash.
+ * This script registers either the python or the c++ import chaser. Comment/uncomment the file accordingly to the one you want to load.
+ * Both could be registered at the same time without problem, but only one would ever be executed.
+ * For the purpose of this sample we demonstrate how to load a c++ and a python chaser.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addMyMaxUsdPlugin = 
+(
+	pysys = python.import("sys")
+	pyos = python.import("os")
+	
+	scriptPath = getThisScriptFilename()
+	pluginPath = pathConfig.removePathLeaf scriptPath
+
+	-- note: either use the Python (default) or the C++ version of the plugin
+	-- You must comment/uncomment the respective maxscript code in the sections below
+
+	-- [section python - start]
+	-- Load the python prim reader
+	pluginPath = pluginPath + "\\python\\plugInfo.json"
+	-- The plugin script location must part of the Python path
+	pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+	-- [section python - end]
+	
+	-- [section c++ - start]
+	-- Load the c++ prim reader
+	/**
+	 * pluginPath = pluginPath + "\\plugInfo.json"
+	 */
+	-- [section c++ - end]
+
+	plugRegistry = pyUsdPlug.Registry()
+	plugRegistry.RegisterPlugins pluginPath
+)
+
+addMyMaxUsdPlugin()
+
+)
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/Contents/plugInfo.json b/samples/UserDataImportChaserSample/Contents/plugInfo.json
new file mode 100644
index 0000000..6e2734d
--- /dev/null
+++ b/samples/UserDataImportChaserSample/Contents/plugInfo.json
@@ -0,0 +1,21 @@
+{
+   # Comments are allowed and indicated by a hash at the start of a
+   # line or after spaces and tabs.  They continue to the end of line.
+   # Blank lines are okay, too.
+   "Plugins": [
+      {
+         "Info": {
+            # Max specific token
+            "MaxUsd": {
+               # The ImportChaser key is all that is need for the plugin to be found and loaded on import.
+               "ImportChaser": {},
+               # The JobContextPlugin key is all that is needed for the context plugin to be found and loaded on import.
+               "JobContextPlugin": {}
+            }
+         },
+         "Name": "UserDataImportChaser",
+         "Type": "library",
+         "LibraryPath": "UserDataImportChaser.dll"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/Contents/python/UserDataImportChaser.py b/samples/UserDataImportChaserSample/Contents/python/UserDataImportChaser.py
new file mode 100644
index 0000000..974691f
--- /dev/null
+++ b/samples/UserDataImportChaserSample/Contents/python/UserDataImportChaser.py
@@ -0,0 +1,147 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+from pymxs import runtime as mxs
+
+import os, sys
+from enum import Enum
+import traceback
+
+# The UserDataImportChaserSample class
+# This Import Chaser sample reads customData from the imported prims and adds
+# user defined properties or custom attributes to the corresponding node
+# depending on the arguments. The sample chaser acts with default data or using
+# the arguments that may have been passed to the chaser.
+
+# the supported data types by the UserDataImportChaserSample
+class PropertyType(Enum):
+    USER_PROP = 1
+    CUSTOM_DATA = 2
+
+class userDataImportChaserSample(maxUsd.ImportChaser):
+    default_property = { PropertyType.USER_PROP : ["myUserProperty"], PropertyType.CUSTOM_DATA : [] }
+
+	# constructor - can be customized for the Import Chaser requirements
+	# the minimal arguments for a functional chaser, and the chaser arguments, which are
+	# not mandatory but can be use to parametrize the chaser.
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(userDataImportChaserSample, self).__init__(factoryContext, *args, **kwargs)
+        self.properties = userDataImportChaserSample.default_property
+
+        # retrieve the specified arguments to be used with the import chaser
+        # the chaser's arguments can be specified for different chasers
+        # the returned arguments are in the form of a dictionary
+        if 'UserData' in factoryContext.GetJobArgs().GetAllChaserArgs():
+            chaser_args = factoryContext.GetJobArgs().GetAllChaserArgs()['UserData']
+            for type, names in chaser_args.items():
+                if type =="user":
+                    self.properties[PropertyType.USER_PROP] = []
+                    for name in names.split(','):
+                        self.properties[PropertyType.USER_PROP].append(name)
+                elif type == "custom":
+                    self.properties[PropertyType.CUSTOM_DATA] = []
+                    for name in names.split(','):
+                        self.properties[PropertyType.CUSTOM_DATA].append(name)
+
+        # retrieve the import mapping dictionary for the stage
+        # the dictionary maps the resulting USD prim paths to their MAXScript NodeHandles origin
+        self.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+
+        # retrieve the USD stage being written to
+        self.stage = factoryContext.GetStage()
+        
+	# processing that needs to run after the main 3ds Max USD import loop.
+    def PostImport(self):
+        try:
+            for prim_path, node_handle in self.primsToNodeHandles.items():
+                node = mxs.maxOps.getNodeByHandle(node_handle)
+                prim = self.stage.GetPrimAtPath(prim_path)
+                addCustAttrib = False
+                params = ""
+                paramsUi = ""
+
+                if not prim:
+                    print(f"Prim not found at path: {prim_path}")
+                    return False
+                
+                for type, names in self.properties.items():
+                    customData = prim.GetCustomData()
+                    for name in names:
+                        val = customData.get(name)
+                        
+                        if val != None:
+                            if type == PropertyType.USER_PROP:
+                                mxs.setUserProp(node, name, val)
+
+                            elif type == PropertyType.CUSTOM_DATA:
+                                if(isinstance(val, str)):
+                                    params += f'{name} type:#string ui:{name} default:"{val}" animateable:True\n'
+                                    paramsUi += f'edittext {name} "{name}" type:#string\n'
+                                elif(isinstance(val, float)):
+                                    params += f'{name} type:#float ui:{name} default:{val} animateable:True\n'
+                                    paramsUi += f'spinner {name} "{name}" type:#float\n'
+                                elif(isinstance(val, bool)):
+                                    params += f'{name} type:#boolean ui:{name} default:{val} animateable:True\n'
+                                    paramsUi += f'checkbox {name} "{name}" type:#boolean\n'
+                                elif(isinstance(val, int)):
+                                    params += f'{name} type:#integer ui:{name} default:{val} animateable:True\n'
+                                    paramsUi += f'slider {name} "{name}" type:#integer\n'
+                                addCustAttrib = True
+                
+                if(addCustAttrib):
+                    baseCA2=f'''attributes "USD"
+                    (
+                        parameters main rollout:params
+                        (
+                            {params}
+                        )
+
+                        rollout params "USD"
+                        (
+                            {paramsUi}
+                        )
+                    )'''
+                    attr = mxs.execute(baseCA2)
+                    mxs.custAttributes.add(node.baseObject, attr)
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            return False
+        return True
+
+# Job Contexts allow to customize several options during a maxUsd import
+#   - 'chaserNames'
+#   - 'chaserArgs'
+#
+# This sample will add a "Import User Data Python DEMO" option in the "PlugIn configuration" drop down in maxUsd imports
+def CustomImportJobContextSample():
+    # build a dictionary of the options to set using the context
+    extraArgs = {}
+    
+    # The UserData chaser needs to be enabled in this job context
+    extraArgs['chaserNames']  = ['UserDataImport']
+
+    # The following arguments are based on the variables contained in the 
+    # custom data of the prims found in: ./SceneFiles/UserDataChaserSample.usda
+    extraArgs['chaserArgs'] = [['UserData', 'user', 'myUserFloatProperty,myUserProperty'], ['UserData', 'custom', 'inGame,strVal']]
+    return extraArgs
+
+maxUsd.ImportChaser.Register(userDataImportChaserSample, "UserDataImport", "Import User Data Python DEMO", "Chaser that adds custom data from prims to their corresponding nodes")
+maxUsd.JobContextRegistry.RegisterImportJobContext("CustomImportContext", "Import User Data context Python DEMO", "Custom plug-in configuration", CustomImportJobContextSample)
diff --git a/samples/UserDataImportChaserSample/Contents/python/plugInfo.json b/samples/UserDataImportChaserSample/Contents/python/plugInfo.json
new file mode 100644
index 0000000..0bf0118
--- /dev/null
+++ b/samples/UserDataImportChaserSample/Contents/python/plugInfo.json
@@ -0,0 +1,23 @@
+{
+    # Comments are allowed and indicated by a hash at the start of a
+    # line or after spaces and tabs.  They continue to the end of line.
+    # Blank lines are okay, too.   
+    "Plugins": [
+      {
+         "Info": {
+             # Max specific token
+             "MaxUsd": {
+                # The ImportChaser key is all that is needed for the plugin to be found and loaded on import.
+                "ImportChaser": {},
+                # The JobContextPlugin key is all that is needed for the context plugin to be found and loaded on import.
+                "JobContextPlugin": {}
+            }
+         },
+         # This is the name of the python script that implements the import chaser.
+         # This file needs to be found on runtime by python, it's path must be added
+         # to the python paths. See RegisterPlugin.ms for an exemple on how to do that.
+         "Name": "UserDataImportChaser",
+         "Type": "python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/DLLEntry.h b/samples/UserDataImportChaserSample/DLLEntry.h
new file mode 100644
index 0000000..14bf038
--- /dev/null
+++ b/samples/UserDataImportChaserSample/DLLEntry.h
@@ -0,0 +1,19 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/samples/UserDataImportChaserSample/DllEntry.cpp b/samples/UserDataImportChaserSample/DllEntry.cpp
new file mode 100644
index 0000000..046dabe
--- /dev/null
+++ b/samples/UserDataImportChaserSample/DllEntry.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/ImportChaser.cpp b/samples/UserDataImportChaserSample/ImportChaser.cpp
new file mode 100644
index 0000000..3f0bcdd
--- /dev/null
+++ b/samples/UserDataImportChaserSample/ImportChaser.cpp
@@ -0,0 +1,101 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Builders/SceneBuilderOptions.h>
+#include <MaxUsd/Chaser/ImportChaser.h>
+#include <MaxUsd/Chaser/ImportChaserRegistry.h>
+
+#include <pxr/usd/usd/primFlags.h>
+
+#include <maxscript/mxsplugin/mxsCustomAttributes.h>
+
+#include <boost/tokenizer.hpp>
+#include <custattrib.h>
+#include <icustattribcontainer.h>
+#include <object.h>
+
+// Add the using statement here to make the import chaser factory macro work
+PXR_NAMESPACE_USING_DIRECTIVE
+
+// The ImportChaserSample class that logs a simple message after an import
+class ImportChaserSample : public pxr::MaxUsdImportChaser
+{
+public:
+    // constructor - can be customized for the Import Chaser requirements.
+    ImportChaserSample(
+        Usd_PrimFlagsPredicate&     returnPredicate,
+        const MaxUsdReadJobContext& context,
+        const fs::path&             filename);
+
+    // processing that needs to run after the main 3ds Max USD import loop.
+    bool PostImport() override;
+
+private:
+    // the imported stage
+    const MaxUsdReadJobContext context;
+    const fs::path&            filename;
+};
+
+// Macro to register the Import Chaser. Defines a factory method for the chaser name. The 'ctx' will
+// be of type MaxUsdImportChaserRegistry::FactoryContext. The method should return a
+// MaxUsdImportChaser*. There are no guarantees about the lifetime of 'ctx'. It is also very
+// important to set the project option "Remove unreferenced code and data" to NO, not doing so could
+// cause the Macro to be optimized out and the Import Chaser to never be properly registered.
+PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY(
+    ImportLog,
+    "Import Chaser C++ DEMO",
+    "Import chaser that logs a message ",
+    ctx)
+{
+    return new ImportChaserSample(
+        *(new Usd_PrimFlagsPredicate()), ctx.GetContext(), ctx.GetFilename());
+}
+
+ImportChaserSample::ImportChaserSample(
+    Usd_PrimFlagsPredicate&     returnPredicate,
+    const MaxUsdReadJobContext& context,
+    const fs::path&             filename)
+    : context(context)
+    , filename(filename)
+{
+}
+
+bool ImportChaserSample::PostImport()
+{
+    maxUsd::Log::Info("Stage imported successfully from '{0}'.\n", filename.string());
+    return true;
+}
+
+REGISTER_IMPORT_JOB_CONTEXT_FCT(
+    CustomImportContext,
+    "Custom Import Context",
+    "Custom import plug-in configuration")
+{
+    VtDictionary extraArgs;
+    extraArgs[MaxUsdSceneBuilderOptionsTokens->chaser]
+        = VtValue(std::vector<VtValue> { VtValue(std::string("ImportLog")) });
+    VtValue chaserArgUserProp(
+        std::vector<VtValue> { VtValue(std::string("ImportLog")),
+                               VtValue(std::string("user")),
+                               VtValue(std::string("myUserFloatProperty,myUserProperty")) });
+    VtValue chaserArgCustomProp(std::vector<VtValue> { VtValue(std::string("ImportLog")),
+                                                       VtValue(std::string("custom")),
+                                                       VtValue(std::string("inGame")) });
+    extraArgs[MaxUsdSceneBuilderOptionsTokens->chaserArgs]
+        = VtValue(std::vector<VtValue> { chaserArgUserProp, chaserArgCustomProp });
+
+    return extraArgs;
+}
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/PackageContents.xml b/samples/UserDataImportChaserSample/PackageContents.xml
new file mode 100644
index 0000000..39f04bd
--- /dev/null
+++ b/samples/UserDataImportChaserSample/PackageContents.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationPackage SchemaVersion="1.0"
+	AutodeskProduct="3ds Max"
+	Name="ImportChaser"
+	Description="Max USD Logger Import Chaser"
+	AppVersion="1.0.0"
+	ProductType="Application"
+	Author="Autodesk"
+	ProductCode="*"
+	UpgradeCode="{54a7b25a-6e7e-4ce4-93e7-3b88478c0a4c}">
+	<CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+	<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+	<Components Description="post-start-up scripts parts">
+		<RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+		<ComponentEntry ModuleName="./Contents/RegisterPlugin.ms" />
+	</Components>
+</ApplicationPackage>
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/SceneFiles/UserDataChaserSample.usda b/samples/UserDataImportChaserSample/SceneFiles/UserDataChaserSample.usda
new file mode 100644
index 0000000..84def23
--- /dev/null
+++ b/samples/UserDataImportChaserSample/SceneFiles/UserDataChaserSample.usda
@@ -0,0 +1,159 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.5.7.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            bool inGame = 1
+            string strVal = "Test string test ..."
+            string myUserFloatProperty = "42.0"
+            string myUserProperty = "allo"
+        }
+    )
+    {
+        float3[] extent = [(-24.820606, -24.820608, 0), (24.820606, 24.820608, 23.558146)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </root/mtl/Material__24>
+        point3f[] points = [(-24.820606, -24.820608, 0), (24.820606, -24.820608, 0), (-24.820606, 24.820608, 0), (24.820606, 24.820608, 0), (-24.820606, -24.820608, 23.558146), (24.820606, -24.820608, 23.558146), (-24.820606, 24.820608, 23.558146), (24.820606, 24.820608, 23.558146)]
+        color3f[] primvars:displayColor = [(0.88235295, 0.56078434, 0.34117648)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (4.16454, -2.83188, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Sphere001" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        float3[] extent = [(-16.736341, -16.736341, -16.736341), (16.736341, 16.736341, 16.736341)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 5, 0, 5, 6, 0, 6, 7, 0, 7, 8, 0, 8, 9, 0, 9, 10, 0, 10, 11, 0, 11, 12, 0, 12, 13, 0, 13, 14, 0, 14, 15, 0, 15, 16, 0, 16, 17, 0, 17, 18, 0, 18, 19, 0, 19, 20, 0, 20, 21, 0, 21, 22, 0, 22, 23, 0, 23, 24, 0, 24, 25, 0, 25, 26, 0, 26, 27, 0, 27, 28, 0, 28, 29, 0, 29, 30, 0, 30, 31, 0, 31, 32, 0, 32, 1, 1, 33, 34, 2, 2, 34, 35, 3, 3, 35, 36, 4, 4, 36, 37, 5, 5, 37, 38, 6, 6, 38, 39, 7, 7, 39, 40, 8, 8, 40, 41, 9, 9, 41, 42, 10, 10, 42, 43, 11, 11, 43, 44, 12, 12, 44, 45, 13, 13, 45, 46, 14, 14, 46, 47, 15, 15, 47, 48, 16, 16, 48, 49, 17, 17, 49, 50, 18, 18, 50, 51, 19, 19, 51, 52, 20, 20, 52, 53, 21, 21, 53, 54, 22, 22, 54, 55, 23, 23, 55, 56, 24, 24, 56, 57, 25, 25, 57, 58, 26, 26, 58, 59, 27, 27, 59, 60, 28, 28, 60, 61, 29, 29, 61, 62, 30, 30, 62, 63, 31, 31, 63, 64, 32, 32, 64, 33, 1, 33, 65, 66, 34, 34, 66, 67, 35, 35, 67, 68, 36, 36, 68, 69, 37, 37, 69, 70, 38, 38, 70, 71, 39, 39, 71, 72, 40, 40, 72, 73, 41, 41, 73, 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0.1875), (0.46875003, 0.1875), (0.50000006, 0.1875), (0.53125006, 0.1875), (0.56250006, 0.1875), (0.59375006, 0.1875), (0.62500006, 0.1875), (0.6562501, 0.1875), (0.6875001, 0.1875), (0.7187501, 0.1875), (0.7500001, 0.1875), (0.7812501, 0.1875), (0.8125002, 0.1875), (0.8437502, 0.1875), (0.8750002, 0.1875), (0.9062502, 0.1875), (0.9375002, 0.1875), (0.96875024, 0.1875), (1.0000002, 0.1875), (0, 0.125), (0.03125, 0.125), (0.0625, 0.125), (0.09375, 0.125), (0.125, 0.125), (0.15625, 0.125), (0.1875, 0.125), (0.21874999, 0.125), (0.24999999, 0.125), (0.28124997, 0.125), (0.31249997, 0.125), (0.34374997, 0.125), (0.375, 0.125), (0.40625, 0.125), (0.4375, 0.125), (0.46875003, 0.125), (0.50000006, 0.125), (0.53125006, 0.125), (0.56250006, 0.125), (0.59375006, 0.125), (0.62500006, 0.125), (0.6562501, 0.125), (0.6875001, 0.125), (0.7187501, 0.125), (0.7500001, 0.125), (0.7812501, 0.125), (0.8125002, 0.125), (0.8437502, 0.125), (0.8750002, 0.125), (0.9062502, 0.125), (0.9375002, 0.125), (0.96875024, 0.125), (1.0000002, 0.125), (0, 0.06249994), (0.03125, 0.06249994), (0.0625, 0.06249994), (0.09375, 0.06249994), (0.125, 0.06249994), (0.15625, 0.06249994), (0.1875, 0.06249994), (0.21874999, 0.06249994), (0.24999999, 0.06249994), (0.28124997, 0.06249994), (0.31249997, 0.06249994), (0.34374997, 0.06249994), (0.375, 0.06249994), (0.40625, 0.06249994), (0.4375, 0.06249994), (0.46875003, 0.06249994), (0.50000006, 0.06249994), (0.53125006, 0.06249994), (0.56250006, 0.06249994), (0.59375006, 0.06249994), (0.62500006, 0.06249994), (0.6562501, 0.06249994), (0.6875001, 0.06249994), (0.7187501, 0.06249994), (0.7500001, 0.06249994), (0.7812501, 0.06249994), (0.8125002, 0.06249994), (0.8437502, 0.06249994), (0.8750002, 0.06249994), (0.9062502, 0.06249994), (0.9375002, 0.06249994), (0.96875024, 0.06249994), (1.0000002, 0.06249994), (0, -1.1920929e-7), (0.03125, -1.1920929e-7), (0.0625, -1.1920929e-7), (0.09375, -1.1920929e-7), (0.125, -1.1920929e-7), (0.15625, -1.1920929e-7), (0.1875, -1.1920929e-7), (0.21874999, -1.1920929e-7), (0.24999999, -1.1920929e-7), (0.28124997, -1.1920929e-7), (0.31249997, -1.1920929e-7), (0.34374997, -1.1920929e-7), (0.375, -1.1920929e-7), (0.40625, -1.1920929e-7), (0.4375, -1.1920929e-7), (0.46875003, -1.1920929e-7), (0.50000006, -1.1920929e-7), (0.53125006, -1.1920929e-7), (0.56250006, -1.1920929e-7), (0.59375006, -1.1920929e-7), (0.62500006, -1.1920929e-7), (0.6562501, -1.1920929e-7), (0.6875001, -1.1920929e-7), (0.7187501, -1.1920929e-7), (0.7500001, -1.1920929e-7), (0.7812501, -1.1920929e-7), (0.8125002, -1.1920929e-7), (0.8437502, -1.1920929e-7), (0.8750002, -1.1920929e-7), (0.9062502, -1.1920929e-7), (0.9375002, -1.1920929e-7), (0.96875024, -1.1920929e-7)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:st:indices = [0, 32, 33, 1, 33, 34, 2, 34, 35, 3, 35, 36, 4, 36, 37, 5, 37, 38, 6, 38, 39, 7, 39, 40, 8, 40, 41, 9, 41, 42, 10, 42, 43, 11, 43, 44, 12, 44, 45, 13, 45, 46, 14, 46, 47, 15, 47, 48, 16, 48, 49, 17, 49, 50, 18, 50, 51, 19, 51, 52, 20, 52, 53, 21, 53, 54, 22, 54, 55, 23, 55, 56, 24, 56, 57, 25, 57, 58, 26, 58, 59, 27, 59, 60, 28, 60, 61, 29, 61, 62, 30, 62, 63, 31, 63, 64, 32, 65, 66, 33, 33, 66, 67, 34, 34, 67, 68, 35, 35, 68, 69, 36, 36, 69, 70, 37, 37, 70, 71, 38, 38, 71, 72, 39, 39, 72, 73, 40, 40, 73, 74, 41, 41, 74, 75, 42, 42, 75, 76, 43, 43, 76, 77, 44, 44, 77, 78, 45, 45, 78, 79, 46, 46, 79, 80, 47, 47, 80, 81, 48, 48, 81, 82, 49, 49, 82, 83, 50, 50, 83, 84, 51, 51, 84, 85, 52, 52, 85, 86, 53, 53, 86, 87, 54, 54, 87, 88, 55, 55, 88, 89, 56, 56, 89, 90, 57, 57, 90, 91, 58, 58, 91, 92, 59, 59, 92, 93, 60, 60, 93, 94, 61, 61, 94, 95, 62, 62, 95, 96, 63, 63, 96, 97, 64, 65, 98, 99, 66, 66, 99, 100, 67, 67, 100, 101, 68, 68, 101, 102, 69, 69, 102, 103, 70, 70, 103, 104, 71, 71, 104, 105, 72, 72, 105, 106, 73, 73, 106, 107, 74, 74, 107, 108, 75, 75, 108, 109, 76, 76, 109, 110, 77, 77, 110, 111, 78, 78, 111, 112, 79, 79, 112, 113, 80, 80, 113, 114, 81, 81, 114, 115, 82, 82, 115, 116, 83, 83, 116, 117, 84, 84, 117, 118, 85, 85, 118, 119, 86, 86, 119, 120, 87, 87, 120, 121, 88, 88, 121, 122, 89, 89, 122, 123, 90, 90, 123, 124, 91, 91, 124, 125, 92, 92, 125, 126, 93, 93, 126, 127, 94, 94, 127, 128, 95, 95, 128, 129, 96, 96, 129, 130, 97, 98, 131, 132, 99, 99, 132, 133, 100, 100, 133, 134, 101, 101, 134, 135, 102, 102, 135, 136, 103, 103, 136, 137, 104, 104, 137, 138, 105, 105, 138, 139, 106, 106, 139, 140, 107, 107, 140, 141, 108, 108, 141, 142, 109, 109, 142, 143, 110, 110, 143, 144, 111, 111, 144, 145, 112, 112, 145, 146, 113, 113, 146, 147, 114, 114, 147, 148, 115, 115, 148, 149, 116, 116, 149, 150, 117, 117, 150, 151, 118, 118, 151, 152, 119, 119, 152, 153, 120, 120, 153, 154, 121, 121, 154, 155, 122, 122, 155, 156, 123, 123, 156, 157, 124, 124, 157, 158, 125, 125, 158, 159, 126, 126, 159, 160, 127, 127, 160, 161, 128, 128, 161, 162, 129, 129, 162, 163, 130, 131, 164, 165, 132, 132, 165, 166, 133, 133, 166, 167, 134, 134, 167, 168, 135, 135, 168, 169, 136, 136, 169, 170, 137, 137, 170, 171, 138, 138, 171, 172, 139, 139, 172, 173, 140, 140, 173, 174, 141, 141, 174, 175, 142, 142, 175, 176, 143, 143, 176, 177, 144, 144, 177, 178, 145, 145, 178, 179, 146, 146, 179, 180, 147, 147, 180, 181, 148, 148, 181, 182, 149, 149, 182, 183, 150, 150, 183, 184, 151, 151, 184, 185, 152, 152, 185, 186, 153, 153, 186, 187, 154, 154, 187, 188, 155, 155, 188, 189, 156, 156, 189, 190, 157, 157, 190, 191, 158, 158, 191, 192, 159, 159, 192, 193, 160, 160, 193, 194, 161, 161, 194, 195, 162, 162, 195, 196, 163, 164, 197, 198, 165, 165, 198, 199, 166, 166, 199, 200, 167, 167, 200, 201, 168, 168, 201, 202, 169, 169, 202, 203, 170, 170, 203, 204, 171, 171, 204, 205, 172, 172, 205, 206, 173, 173, 206, 207, 174, 174, 207, 208, 175, 175, 208, 209, 176, 176, 209, 210, 177, 177, 210, 211, 178, 178, 211, 212, 179, 179, 212, 213, 180, 180, 213, 214, 181, 181, 214, 215, 182, 182, 215, 216, 183, 183, 216, 217, 184, 184, 217, 218, 185, 185, 218, 219, 186, 186, 219, 220, 187, 187, 220, 221, 188, 188, 221, 222, 189, 189, 222, 223, 190, 190, 223, 224, 191, 191, 224, 225, 192, 192, 225, 226, 193, 193, 226, 227, 194, 194, 227, 228, 195, 195, 228, 229, 196, 197, 230, 231, 198, 198, 231, 232, 199, 199, 232, 233, 200, 200, 233, 234, 201, 201, 234, 235, 202, 202, 235, 236, 203, 203, 236, 237, 204, 204, 237, 238, 205, 205, 238, 239, 206, 206, 239, 240, 207, 207, 240, 241, 208, 208, 241, 242, 209, 209, 242, 243, 210, 210, 243, 244, 211, 211, 244, 245, 212, 212, 245, 246, 213, 213, 246, 247, 214, 214, 247, 248, 215, 215, 248, 249, 216, 216, 249, 250, 217, 217, 250, 251, 218, 218, 251, 252, 219, 219, 252, 253, 220, 220, 253, 254, 221, 221, 254, 255, 222, 222, 255, 256, 223, 223, 256, 257, 224, 224, 257, 258, 225, 225, 258, 259, 226, 226, 259, 260, 227, 227, 260, 261, 228, 228, 261, 262, 229, 230, 263, 264, 231, 231, 264, 265, 232, 232, 265, 266, 233, 233, 266, 267, 234, 234, 267, 268, 235, 235, 268, 269, 236, 236, 269, 270, 237, 237, 270, 271, 238, 238, 271, 272, 239, 239, 272, 273, 240, 240, 273, 274, 241, 241, 274, 275, 242, 242, 275, 276, 243, 243, 276, 277, 244, 244, 277, 278, 245, 245, 278, 279, 246, 246, 279, 280, 247, 247, 280, 281, 248, 248, 281, 282, 249, 249, 282, 283, 250, 250, 283, 284, 251, 251, 284, 285, 252, 252, 285, 286, 253, 253, 286, 287, 254, 254, 287, 288, 255, 255, 288, 289, 256, 256, 289, 290, 257, 257, 290, 291, 258, 258, 291, 292, 259, 259, 292, 293, 260, 260, 293, 294, 261, 261, 294, 295, 262, 263, 296, 297, 264, 264, 297, 298, 265, 265, 298, 299, 266, 266, 299, 300, 267, 267, 300, 301, 268, 268, 301, 302, 269, 269, 302, 303, 270, 270, 303, 304, 271, 271, 304, 305, 272, 272, 305, 306, 273, 273, 306, 307, 274, 274, 307, 308, 275, 275, 308, 309, 276, 276, 309, 310, 277, 277, 310, 311, 278, 278, 311, 312, 279, 279, 312, 313, 280, 280, 313, 314, 281, 281, 314, 315, 282, 282, 315, 316, 283, 283, 316, 317, 284, 284, 317, 318, 285, 285, 318, 319, 286, 286, 319, 320, 287, 287, 320, 321, 288, 288, 321, 322, 289, 289, 322, 323, 290, 290, 323, 324, 291, 291, 324, 325, 292, 292, 325, 326, 293, 293, 326, 327, 294, 294, 327, 328, 295, 296, 329, 330, 297, 297, 330, 331, 298, 298, 331, 332, 299, 299, 332, 333, 300, 300, 333, 334, 301, 301, 334, 335, 302, 302, 335, 336, 303, 303, 336, 337, 304, 304, 337, 338, 305, 305, 338, 339, 306, 306, 339, 340, 307, 307, 340, 341, 308, 308, 341, 342, 309, 309, 342, 343, 310, 310, 343, 344, 311, 311, 344, 345, 312, 312, 345, 346, 313, 313, 346, 347, 314, 314, 347, 348, 315, 315, 348, 349, 316, 316, 349, 350, 317, 317, 350, 351, 318, 318, 351, 352, 319, 319, 352, 353, 320, 320, 353, 354, 321, 321, 354, 355, 322, 322, 355, 356, 323, 323, 356, 357, 324, 324, 357, 358, 325, 325, 358, 359, 326, 326, 359, 360, 327, 327, 360, 361, 328, 329, 362, 363, 330, 330, 363, 364, 331, 331, 364, 365, 332, 332, 365, 366, 333, 333, 366, 367, 334, 334, 367, 368, 335, 335, 368, 369, 336, 336, 369, 370, 337, 337, 370, 371, 338, 338, 371, 372, 339, 339, 372, 373, 340, 340, 373, 374, 341, 341, 374, 375, 342, 342, 375, 376, 343, 343, 376, 377, 344, 344, 377, 378, 345, 345, 378, 379, 346, 346, 379, 380, 347, 347, 380, 381, 348, 348, 381, 382, 349, 349, 382, 383, 350, 350, 383, 384, 351, 351, 384, 385, 352, 352, 385, 386, 353, 353, 386, 387, 354, 354, 387, 388, 355, 355, 388, 389, 356, 356, 389, 390, 357, 357, 390, 391, 358, 358, 391, 392, 359, 359, 392, 393, 360, 360, 393, 394, 361, 362, 395, 396, 363, 363, 396, 397, 364, 364, 397, 398, 365, 365, 398, 399, 366, 366, 399, 400, 367, 367, 400, 401, 368, 368, 401, 402, 369, 369, 402, 403, 370, 370, 403, 404, 371, 371, 404, 405, 372, 372, 405, 406, 373, 373, 406, 407, 374, 374, 407, 408, 375, 375, 408, 409, 376, 376, 409, 410, 377, 377, 410, 411, 378, 378, 411, 412, 379, 379, 412, 413, 380, 380, 413, 414, 381, 381, 414, 415, 382, 382, 415, 416, 383, 383, 416, 417, 384, 384, 417, 418, 385, 385, 418, 419, 386, 386, 419, 420, 387, 387, 420, 421, 388, 388, 421, 422, 389, 389, 422, 423, 390, 390, 423, 424, 391, 391, 424, 425, 392, 392, 425, 426, 393, 393, 426, 427, 394, 395, 428, 429, 396, 396, 429, 430, 397, 397, 430, 431, 398, 398, 431, 432, 399, 399, 432, 433, 400, 400, 433, 434, 401, 401, 434, 435, 402, 402, 435, 436, 403, 403, 436, 437, 404, 404, 437, 438, 405, 405, 438, 439, 406, 406, 439, 440, 407, 407, 440, 441, 408, 408, 441, 442, 409, 409, 442, 443, 410, 410, 443, 444, 411, 411, 444, 445, 412, 412, 445, 446, 413, 413, 446, 447, 414, 414, 447, 448, 415, 415, 448, 449, 416, 416, 449, 450, 417, 417, 450, 451, 418, 418, 451, 452, 419, 419, 452, 453, 420, 420, 453, 454, 421, 421, 454, 455, 422, 422, 455, 456, 423, 423, 456, 457, 424, 424, 457, 458, 425, 425, 458, 459, 426, 426, 459, 460, 427, 428, 461, 462, 429, 429, 462, 463, 430, 430, 463, 464, 431, 431, 464, 465, 432, 432, 465, 466, 433, 433, 466, 467, 434, 434, 467, 468, 435, 435, 468, 469, 436, 436, 469, 470, 437, 437, 470, 471, 438, 438, 471, 472, 439, 439, 472, 473, 440, 440, 473, 474, 441, 441, 474, 475, 442, 442, 475, 476, 443, 443, 476, 477, 444, 444, 477, 478, 445, 445, 478, 479, 446, 446, 479, 480, 447, 447, 480, 481, 448, 448, 481, 482, 449, 449, 482, 483, 450, 450, 483, 484, 451, 451, 484, 485, 452, 452, 485, 486, 453, 453, 486, 487, 454, 454, 487, 488, 455, 455, 488, 489, 456, 456, 489, 490, 457, 457, 490, 491, 458, 458, 491, 492, 459, 459, 492, 493, 460, 461, 494, 495, 462, 462, 495, 496, 463, 463, 496, 497, 464, 464, 497, 498, 465, 465, 498, 499, 466, 466, 499, 500, 467, 467, 500, 501, 468, 468, 501, 502, 469, 469, 502, 503, 470, 470, 503, 504, 471, 471, 504, 505, 472, 472, 505, 506, 473, 473, 506, 507, 474, 474, 507, 508, 475, 475, 508, 509, 476, 476, 509, 510, 477, 477, 510, 511, 478, 478, 511, 512, 479, 479, 512, 513, 480, 480, 513, 514, 481, 481, 514, 515, 482, 482, 515, 516, 483, 483, 516, 517, 484, 484, 517, 518, 485, 485, 518, 519, 486, 486, 519, 520, 487, 487, 520, 521, 488, 488, 521, 522, 489, 489, 522, 523, 490, 490, 523, 524, 491, 491, 524, 525, 492, 492, 525, 526, 493, 527, 495, 494, 528, 496, 495, 529, 497, 496, 530, 498, 497, 531, 499, 498, 532, 500, 499, 533, 501, 500, 534, 502, 501, 535, 503, 502, 536, 504, 503, 537, 505, 504, 538, 506, 505, 539, 507, 506, 540, 508, 507, 541, 509, 508, 542, 510, 509, 543, 511, 510, 544, 512, 511, 545, 513, 512, 546, 514, 513, 547, 515, 514, 548, 516, 515, 549, 517, 516, 550, 518, 517, 551, 519, 518, 552, 520, 519, 553, 521, 520, 554, 522, 521, 555, 523, 522, 556, 524, 523, 557, 525, 524, 558, 526, 525]
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-27.6058, 8.03715, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "mtl"
+    {
+        def Material "Material__24"
+        {
+            token outputs:surface.connect = </root/mtl/Material__24/Material__24.outputs:surface>
+
+            def Shader "Material__24"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                color3f inputs:diffuseColor = (0.23921569, 0.23529412, 0.45490196)
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/samples/UserDataImportChaserSample/UserDataImportChaser.cpp b/samples/UserDataImportChaserSample/UserDataImportChaser.cpp
new file mode 100644
index 0000000..917c8c2
--- /dev/null
+++ b/samples/UserDataImportChaserSample/UserDataImportChaser.cpp
@@ -0,0 +1,284 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CAMetaDataUtils.h"
+
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Builders/SceneBuilderOptions.h>
+#include <MaxUsd/Chaser/ImportChaser.h>
+#include <MaxUsd/Chaser/ImportChaserRegistry.h>
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <maxscript/mxsplugin/mxsCustomAttributes.h>
+
+#include <boost/tokenizer.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+enum UserDataImportChaserCodes
+{
+    UnableToAddMetadata,
+    UnavailableParamBlock
+};
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(UnableToAddMetadata, "Unable to add USD Metadata to object.");
+    TF_ADD_ENUM_NAME(
+        UnavailableParamBlock,
+        "Unable to get ParamBlock2 for IMetaDataManager/CustAttrib for object.");
+};
+
+enum class PropertyType : int
+{
+    USER_PROP = 1,  // "user"
+    CUSTOM_DATA = 2 // "custom"
+};
+
+// The UserDataImportChaserSample class
+// This Import Chaser sample reads customData from the imported prims and adds
+// user defined properties or custom attributes to the corresponding node
+// depending on the arguments. The sample chaser acts with default data or using
+// the arguments that may have been passed to the chaser.
+class UserDataImportChaserSample : public pxr::MaxUsdImportChaser
+{
+public:
+    // Constructor - can be customized for the Import Chaser requirements.
+    UserDataImportChaserSample(
+        Usd_PrimFlagsPredicate&     returnPredicate,
+        const MaxUsdReadJobContext& context,
+        const fs::path&             filename);
+
+    // Processing that needs to run after the main 3ds Max USD import loop.
+    bool PostImport() override;
+
+private:
+    const MaxUsdReadJobContext context;
+    const fs::path&            filename;
+
+    typedef std::map<PropertyType, std::set<std::string>> PropertyMap;
+    PropertyMap                                           dataToImport;
+};
+
+UserDataImportChaserSample::UserDataImportChaserSample(
+    Usd_PrimFlagsPredicate&     returnPredicate,
+    const MaxUsdReadJobContext& context,
+    const fs::path&             filename)
+    : context(context)
+    , filename(filename)
+{
+    // Default configuration
+    dataToImport
+        = { { PropertyType::USER_PROP, { "myUserProperty" } }, { PropertyType::CUSTOM_DATA, {} } };
+
+    // Parsing the specific import chaser arguments
+    boost::char_separator<char> sep(",");
+
+    for (const auto& args : context.GetArgs().GetAllChaserArgs()) {
+        for (const auto& item : args.second) {
+            if (item.first == "user") {
+                dataToImport[PropertyType::USER_PROP].clear();
+                boost::tokenizer<boost::char_separator<char>> tokens(item.second, sep);
+                for (const auto& name : tokens) {
+                    dataToImport[PropertyType::USER_PROP].insert(name);
+                }
+            } else if (item.first == "custom") {
+                dataToImport[PropertyType::CUSTOM_DATA].clear();
+                boost::tokenizer<boost::char_separator<char>> tokens(item.second, sep);
+                for (const auto& name : tokens) {
+                    dataToImport[PropertyType::CUSTOM_DATA].insert(name);
+                }
+            } else {
+                TF_WARN(
+                    "Wrong user data type ('%s') passed as argument to UserPropertyImportChaser",
+                    item.first.c_str());
+            }
+        }
+    }
+}
+
+bool UserDataImportChaserSample::PostImport()
+{
+    // Makes a prims to nodes map
+    std::map<std::string, INode*> primsToNodes;
+    {
+        const auto& nodeMap = context.GetReferenceTargetRegistry();
+        for (const std::pair<pxr::SdfPath, RefTargetHandle>& item : nodeMap) {
+            INode* node = dynamic_cast<INode*>(item.second);
+            if (node) {
+                primsToNodes.insert({ item.first.GetString(), node });
+            }
+        }
+    }
+
+    // Go through the imported nodes / prims
+    for (const auto& imported : primsToNodes) {
+        pxr::UsdPrim prim = context.GetStage()->GetPrimAtPath(pxr::SdfPath(imported.first));
+        INode*       node = imported.second;
+
+        // User properties
+        // Find and add the specified user property to the node as a user defined property.
+        for (const auto& propName : dataToImport[PropertyType::USER_PROP]) {
+            VtValue customData = prim.GetCustomDataByKey(pxr::TfToken(propName));
+            if (!customData.IsEmpty()) {
+                if (customData.GetTypeName() == "bool") {
+                    node->SetUserPropBool(
+                        MaxUsd::UsdStringToMaxString(propName).data(), customData.Get<bool>());
+                } else if (customData.GetTypeName() == "int") {
+                    node->SetUserPropInt(
+                        MaxUsd::UsdStringToMaxString(propName).data(), customData.Get<int>());
+                } else if (customData.GetTypeName() == "float") {
+                    node->SetUserPropFloat(
+                        MaxUsd::UsdStringToMaxString(propName).data(), customData.Get<float>());
+                } else if (customData.GetTypeName() == "double") {
+                    node->SetUserPropFloat(
+                        MaxUsd::UsdStringToMaxString(propName).data(),
+                        static_cast<float>(customData.Get<double>()));
+                } else {
+                    node->SetUserPropString(
+                        MaxUsd::UsdStringToMaxString(propName).data(),
+                        MaxUsd::UsdStringToMaxString(customData.Get<std::string>()));
+                }
+            }
+        }
+
+        // Custom Attributes
+        IMetaDataManager* maxMetaDataManager = IMetaDataManager::GetInstance();
+
+        // Contains the usd metadata names for defining our CustomAttributes and also the value to
+        // set for each parameter
+        std::vector<std::pair<caMetaData::UsdMetaDataTypeCA, caMetaData::ParameterValue>>
+            customAttributesToAddAndUpdate;
+
+        // Finds and adds the custom data property to the node as a custom attribute
+        for (const auto& propName : dataToImport[PropertyType::CUSTOM_DATA]) {
+            VtValue customData = prim.GetCustomDataByKey(pxr::TfToken(propName));
+            if (!customData.IsEmpty()) {
+                caMetaData::ParameterValue val;
+                val.key = MaxUsd::UsdStringToMaxString(propName).data();
+
+                if (customData.GetTypeName() == "bool") {
+                    val.boolValue = customData.Get<bool>();
+                    customAttributesToAddAndUpdate.push_back(
+                        std::make_pair(caMetaData::UsdMetaDataTypeCA::CA_BOOL, val));
+                } else if (customData.GetTypeName() == "int") {
+                    val.intValue = customData.Get<int>();
+                    customAttributesToAddAndUpdate.push_back(
+                        std::make_pair(caMetaData::UsdMetaDataTypeCA::CA_INT, val));
+                } else {
+                    val.strValue
+                        = MaxUsd::UsdStringToMaxString(customData.Get<std::string>()).data();
+                    customAttributesToAddAndUpdate.push_back(
+                        std::make_pair(caMetaData::UsdMetaDataTypeCA::CA_STR, val));
+                }
+            }
+        }
+
+        if (!customAttributesToAddAndUpdate.empty()) {
+            IMetaDataManager::MetaDataID usdBuiltInMetaData
+                = caMetaData::getOrDefineCABuiltInMetaData(customAttributesToAddAndUpdate);
+
+            if (usdBuiltInMetaData != EmptyMetaDataID) {
+                CustAttrib* usdCustomAttribute = maxMetaDataManager->AddMetaDataToAnimatable(
+                    usdBuiltInMetaData, *(node->GetObjectRef()));
+                if (usdCustomAttribute == nullptr) {
+                    TF_ERROR(
+                        UnableToAddMetadata,
+                        "object '%s'",
+                        MaxUsd::MaxStringToUsdString(node->GetObjectRef()->GetObjectName(false))
+                            .c_str());
+                    return false;
+                }
+
+                IParamBlock2* usdCustomAttributePb = usdCustomAttribute->GetParamBlock(0);
+                if (usdCustomAttributePb == nullptr) {
+                    TF_ERROR(
+                        UnavailableParamBlock,
+                        "object `%s",
+                        MaxUsd::MaxStringToUsdString(node->GetObjectRef()->GetObjectName(false))
+                            .c_str());
+                    return false;
+                }
+
+                for (const auto& prop : customAttributesToAddAndUpdate) {
+                    const auto& def = getCAMetaDataDef(prop.first, prop.second.key);
+                    auto        val = prop.second;
+                    const auto  stage = context.GetStage();
+                    const auto  timeConfig = context.GetArgs().GetResolvedTimeConfig(stage);
+                    const auto  startTime = MaxUsd::GetMaxTimeValueFromUsdTimeCode(
+                        stage, timeConfig.GetStartTimeCode());
+                    switch (def.usdMetaDataParamDef.m_dataType) {
+                    case TYPE_STRING:
+                        usdCustomAttributePb->SetValueByName(
+                            def.usdMetaDataKey, val.strValue.c_str(), startTime);
+                        break;
+                    case TYPE_BOOL:
+                        usdCustomAttributePb->SetValueByName(
+                            def.usdMetaDataKey, val.boolValue, startTime);
+                        break;
+                    case TYPE_INT:
+                        usdCustomAttributePb->SetValueByName(
+                            def.usdMetaDataKey, val.intValue, startTime);
+                        break;
+                    default:
+                        // Unhandled type that was not implemented
+                        DbgAssert(_T("Unhandled customattribute data type"));
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    return true;
+}
+
+// clang-format off
+REGISTER_IMPORT_JOB_CONTEXT_FCT(CustomImportContext, "Custom C++ Import Context", "Custom import plug-in configuration")
+{
+	// The following arguments are based on the variables contained in the 
+	// custom data of the prims found in: ./SceneFiles/UserDataChaserSample.usda
+	VtDictionary extraArgs;
+	extraArgs[MaxUsdSceneBuilderOptionsTokens->chaserNames] = VtValue(std::vector<VtValue> { VtValue(std::string("UserDataImport")) } );
+	VtValue chaserArgUserProp(std::vector<VtValue> {
+									VtValue(std::string("UserDataImport")),
+									VtValue(std::string("user")),
+									VtValue(std::string("myUserFloatProperty,myUserProperty")) });
+	VtValue chaserArgCustomProp(std::vector<VtValue> {
+									VtValue(std::string("UserDataImport")),
+									VtValue(std::string("custom")),
+									VtValue(std::string("inGame,strVal")) });
+	extraArgs[MaxUsdSceneBuilderOptionsTokens->chaserArgs] = VtValue(std::vector<VtValue>{ chaserArgUserProp, chaserArgCustomProp });
+	
+	return extraArgs;
+}
+
+
+// Macro to register the Import Chaser. Defines a factory method for the chaser name. The 'ctx' will
+// be of type MaxUsdImportChaserRegistry::FactoryContext. The method should return a MaxUsdImportChaser*.
+// There are no guarantees about the lifetime of 'ctx'.
+// It is also very important to set the project option "Remove unreferenced code and data" to NO,
+// not doing so could cause the Macro to be optimized out and the Import Chaser to never be properly registered.
+PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY(UserDataImport, "Import Chaser C++ DEMO", "Custom plug-in configuration", ctx)
+{
+	return new UserDataImportChaserSample(
+		*(new Usd_PrimFlagsPredicate()), 
+		ctx.GetContext(), 
+		ctx.GetFilename()
+	);
+}
+// clang-format on
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/UserDataImportChaser.filters b/samples/UserDataImportChaserSample/UserDataImportChaser.filters
new file mode 100644
index 0000000..5c53b4a
--- /dev/null
+++ b/samples/UserDataImportChaserSample/UserDataImportChaser.filters
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="UserDataExportChaser.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <CopyFileToFolders Include="plugInfo.json">
+      <Filter>Package Files</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="RegisterPlugin.ms">
+      <Filter>Package Files</Filter>
+    </CopyFileToFolders>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="python\UserDataExportChaser.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{736bd8fe-eeb6-4c2b-a0ab-dc1037725910}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{c3509517-bd52-40a7-ab6f-a09227ec306b}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Package Files">
+      <UniqueIdentifier>{05cf4688-3af7-4d00-80d5-993a79604ba2}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{a6749ed4-ce14-4a10-9eeb-afdaff80a895}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Package Files</Filter>
+    </Xml>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj b/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj
new file mode 100644
index 0000000..5de245a
--- /dev/null
+++ b/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>UserDataImportChaserPlugin</ProjectName>
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{CAE8A112-333A-4CB5-81DD-9F9503D004A2}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmaxUsdSample.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <TargetName>UserDataImportChaser</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)\Contents\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>geom.lib;shlwapi.lib;paramblk2.lib;maxscrpt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <ClCompile>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>../silence_usd_warnings.h</ForcedIncludeFiles>
+    </ClCompile>
+    <PostBuildEvent>
+      <Command>@echo Do not forget to update "$(OutDir)RegisterPlugin.ms" in order to load the C++ version of the plugin.</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="CAMetaDataUtils.h" />
+    <ClInclude Include="DLLEntry.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="CAMetaDataUtils.cpp" />
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="UserDataImportChaser.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\plugInfo.json">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="Contents\python\UserDataImportChaser.py">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>python\%(Filename)%(Extension)</TargetPath>
+    </None>
+    <None Include="PackageContents.xml">
+      <FileType>Document</FileType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>..\%(Filename)%(Extension)</TargetPath>
+    </None>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj.filters b/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj.filters
new file mode 100644
index 0000000..17ca853
--- /dev/null
+++ b/samples/UserDataImportChaserSample/UserDataImportChaser.vcxproj.filters
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="UserDataImportChaser.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="CAMetaDataUtils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{7d196c1f-86cb-4a3f-8bc2-e2788d383984}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4fb15ec8-cc4f-4f93-b920-33d3011bb075}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\python">
+      <UniqueIdentifier>{89532428-a715-4c03-8226-84255c57f907}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Contents">
+      <UniqueIdentifier>{63c81035-1c90-4ae6-aff4-c3fb4989b183}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="CAMetaDataUtils.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Contents\python\plugInfo.json">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\python\UserDataImportChaser.py">
+      <Filter>Source Files\python</Filter>
+    </None>
+    <None Include="Contents\plugInfo.json">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+    <None Include="Contents\RegisterPlugin.ms">
+      <Filter>Source Files\Contents</Filter>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Xml Include="PackageContents.xml">
+      <Filter>Source Files</Filter>
+    </Xml>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/readme.md b/samples/readme.md
new file mode 100644
index 0000000..e7ccf7c
--- /dev/null
+++ b/samples/readme.md
@@ -0,0 +1,109 @@
+# Samples
+
+The sample projects illustrate how to implement the available APIs. They are constructed to be easily added individually as application plugins to 3ds Max. Remember however that those extensions are not 3ds Max plugins but are plugins to the 3ds Max USD plugin, and are registered in a different way.
+
+The samples are provided as a starting point to help you understand the basic elements to put in place in C++ as well as in Python. They are basic examples of possible extensions a user might want to put in place and are not meant to be full implementation of the feature they are providing.
+
+The Python version of the samples are functional directly from the provided devkit package. You simply need to add the path of the samples root folder or the specific sample you wish to use to the `ADSK_APPLICATION_PLUGINS` environment variable.
+
+The C++ version of the plugins need to be compiled using the same requirements as for 3ds Max plugins. As of today, we are providing all component dependencies along with the devkit package. You will need to edit the `ADSK_APPLICATION_PLUGINS` environment variable to add the `build\samples\bin\x64\<Configuration>\` that got generated at compile time. Also, the sample plugins are configured to be running their Python version by default. Do not forget to edit their `RegisterPlugin.ms` MAXScript post-launch script to enable the C++ section and comment out the Python section of the script.
+
+- **glTFMaterialWriterPlugin** - an example of how to implement a `ShaderWriter` that exports glTFMaterial to UsdPreviewSurface.  This is a minimal, non-exhaustive example.
+- **SpherePrimWriterPlugin** - an example of how to implement a `PrimWriter` that exports 3ds Max spheres to USD native spheres.  
+- **SpherePrimReaderPlugin** - an example of how to implement a `PrimReader` that imports USD native spheres to 3ds Max spheres.  
+- **UserDataExportChaserPlugin** - an example of how to implement an `ExportChaser` to expose user properties and custom attributes to a USD custom data node.
+- **UserDataImportChaserPlugin** - an example of how to implement an `ImportChaser` to import custom data to a 3ds Max user properties and custom attributes.
+
+> The **Qt** user interface code of the *UserDataExportChaser C++ Sample* requires an installation of **Qt** as described in the official 3dsMax SDK documentation. To skip the Qt UI part, removing the Qt code part from the sample is possible as
+well, the rest of the sample will still work regardless (analogous to the UserDataImportChaserSample, that does not have any Qt dependency).
+
+## Requirements
+The requirements for using this 3ds Max USD SDK are the same as the [3ds Max SDK](https://help.autodesk.com/view/MAXDEV/2023/ENU/?guid=sdk_requirements). 
+
+The Qt library as described in the official [3ds Max SDK documentation](https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=sdk_requirements).  
+We also recommend to install the _QtVSTools for Visual Studio_ to automatically use the QtMSBuild tools provided by this extension. It may be required to choose the appropriate Qt installation in the project settings - based on your targeted version of 3dsMax.
+
+> The 3ds Max USD component devkit includes pre-builds of the component's dependencies. The devkit is found within an installed 3ds Max USD component.
+
+# Plugin development
+## Creating a plugin project
+
+Plugins need to minimally link against the `maxsdk`, `openusd` and the `maxUsd` (from the 3ds Max USD component) libraries
+**core.lib;maxutil.lib;maxUsd.lib and 3dsmax_\<openusdlibs\>.lib**
+
+> The  `openusd` libraries are included in the devkit.
+
+> The requirements for using this SDK are the same as the  [3ds Max SDK](https://help.autodesk.com/view/MAXDEV/2023/ENU/?guid=sdk_requirements).
+
+## Registering a plugin
+
+Plugins are registered by providing a path or paths to JSON files that describe the location, structure and contents of the plugin. The standard name for these files is `plugInfo.json`.
+
+See the [USD Registry Reference](https://graphics.pixar.com/usd/dev/api/class_plug_registry.html#details) for more information.
+
+Every provided samples are following those principles.
+
+The Info sub-section in the plugInfo schema for all 3ds Max USD plugins contains those nested properties:
+
+- `MaxUsd` : Mandatory property identifying the 3ds Max Info block.
+  - `PrimWriter` : Optional property stating the current plugin contains PrimWriters.
+   - `PrimReader` : Optional property stating the current plugin contains PrimReader
+      - `providesTranslator` : Required property listing the Usd Prim Types the PrimReader imports; the strings making up the array are the Usd Prim Type name
+  - `ShadingModePlugin` : Optional property stating the current plugin contains a ShadingMode definition.
+  - `ShaderWriter` : Optional property stating the current plugin contains ShaderWriters.
+    - `providesTranslator` : Required property for ShaderWriters, listing the translated 3ds Max material; the strings making up the array are the material non-localized names.
+  - `ShaderReader` : Optional property stating the current plugin contains ShaderReader
+      - `providesTranslator` : Required property listing the imported Usd Shader Ids; the strings making up the array are the token value of Usd Shader Id
+  - `ExportChaser`: Optional property stating the current plugin contains an ExportChaser.
+  - `ImportChaser` : Optional property stating the current plugin contains ImportChaser
+  - `JobContextPlugin` : Optional property stating the current plugin contains a JobContext.
+
+Here is a possible sample `plugInfo.json` file declaring a C++ plugin containing the implementation of:
+
+- a PrimWriter handling the translation of 3ds Max Nodes,
+- a new material target to (material conversion type) or a shader mode exporter (both part of the ShadingModeRegistry),
+- a ShaderWriter handling the translation of the 3ds Max "Physical Material" material type,
+- an ExportChaser fine-tuning the export stage.
+- a JobContext (plug-in configuration) wrapping a function to set options to use at import/export
+
+```json
+{
+   "Plugins":[
+      {
+         "Info":{
+            "MaxUsd":{
+               "PrimWriter": {},
+               "ShadingModePlugin": {},
+               "ShaderWriter":{
+                  "providesTranslator":[
+                    "Physical Material"
+                  ]
+               },
+               "ExportChaser": {}
+               "JobContextPlugin": {}
+            }
+         },
+         "Name":"sampleMaxUsdPlugin",
+         "Type":"library",
+         "LibraryPath":"SampleMaxUSDPlugin.dll"
+      }
+   ]
+}
+```
+
+In case of a Python plugin, the plugin script location must part of the Python path (this can be achieved in a startup script with the Python command `sys.path.insert`).
+
+For the USD PlugRegistry to find the `plugInfo.json` file, the file directory must be registered.
+
+```python
+from pxr import Plug
+Plug.Registry.RegisterPlugins(<usdPluginsPath>)
+```
+
+Again, this can be achieved in a 3ds Max startup script for the plugin, or you can use the environment variable **PXR_PLUGINPATH_NAME** to define the USD plugin path (the path where the `plugInfo.json` file is located).
+
+Regardless of the type of plugin, C++ or Python, to register your plugin you'll need to add a registration script to your 3ds Max plugin in the "post-start-up scripts parts", these USD plugins need to be loaded only when Max is ready to be interacted with and NOT be loaded by the 3ds Max plugin itself prior to that. You can find examples of such scripts in the SDK sample projects.
+
+When creating a C++ plugin (.dll), it should be a separate project from your actual 3ds Max plugin. USD plugin DLLs should be loaded via the USD plugin API, USD does not expect the DLL to be already loaded when the plugin is loaded - and if it is, that can create issues.
+
+For a C++ plugin it is also very important to set the project option "Remove unreferenced code and data" to NO. Not doing so could cause the Macro to be optimized out and the Writer to never be properly registered.
diff --git a/samples/silence_usd_warnings.h b/samples/silence_usd_warnings.h
new file mode 100644
index 0000000..17b5aaa
--- /dev/null
+++ b/samples/silence_usd_warnings.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Getting rid of multiple C++17 compliance warnings part of the Pixar USD header files
+
+#pragma warning(push)
+#pragma warning(disable : 4244 4305)
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/quath.h>
+#include <pxr/base/gf/vec2f.h>
+#include <pxr/base/gf/vec2h.h>
+#include <pxr/base/gf/vec2i.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec3h.h>
+#include <pxr/base/gf/vec3i.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/base/gf/vec4h.h>
+#include <pxr/base/gf/vec4i.h>
+#include <pxr/usd/pcp/mapFunction.h>
+#pragma warning(pop)
+
+#pragma warning(push)
+#pragma warning(disable : 4267)
+#include <pxr/usd/ndr/property.h>
+#pragma warning(pop)
+
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#include <pxr/base/tf/singleton.h>
+#pragma warning(pop)
\ No newline at end of file
diff --git a/src/3dsmax.common.settings.props b/src/3dsmax.common.settings.props
new file mode 100644
index 0000000..1a68712
--- /dev/null
+++ b/src/3dsmax.common.settings.props
@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+  xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <!-- Settings for 3dsmax component configurations -->
+  <ImportGroup Label="PropertySheets">
+    <Import Project="./DependencyPathOverrides.props" Condition="$(HasImportedCommonProps) != '1'"/>
+  </ImportGroup>
+  <!-- Common properties -->
+  <PropertyGroup Label="Globals">
+    <RepoRootDir>$([System.IO.Path]::GetFullPath('$(MSBuildThisFileDirectory)\..\'))</RepoRootDir>
+
+    <!-- HasImportedCommonProps is used as a flag to tell propertysheets or vcxproj inheriting from that the 3dsmax.common.settings.props has already been imported before. Propersheets importing this can use to flag to ignore importing a duplicate of this props and avoid the MSB4011 warning during compilation -->
+    <HasImportedCommonProps>1</HasImportedCommonProps>
+
+    <VersionTarget Condition="'$(VersionTarget)'==''">2025</VersionTarget>
+    <PrivateComponentName>usd-component-$(VersionTarget)</PrivateComponentName>
+    <PublicComponentName>3dsmax-usd-$(VersionTarget)</PublicComponentName>
+    <ApplicationPluginsDir>$(RepoRootDir)build\bin\$(Platform)\$(Configuration)\</ApplicationPluginsDir>
+    <PluginsRelDir>ApplicationPlugins\usd-component\Contents\bin\</PluginsRelDir>
+    <SrcDir>$(RepoRootDir)src\</SrcDir>
+    <SrcTsDir>$(RepoRootDir)src\tfiles\</SrcTsDir>    
+    <PluginSrcDir>$(RepoRootDir)src\$(PluginsRelDir)\</PluginSrcDir>
+    <ContentsDir>$(ApplicationPluginsDir)$(PrivateComponentName)\Contents\</ContentsDir>
+    <LibDir>$(RepoRootDir)build\lib\$(Platform)\$(Configuration)\$(VersionTarget)\</LibDir>
+    <TestOutDir>$(RepoRootDir)build\bin\$(Platform)\$(Configuration)\$(PrivateComponentName)-test</TestOutDir>
+    <!-- Artifacts location -->
+    <Artifacts>$(RepoRootDir)artifacts\</Artifacts>
+    <QTVER Condition=" '$(VersionTarget)'&gt;='2025' ">6.5.3</QTVER>
+    <QTVER Condition=" '$(VersionTarget)'&lt;='2024' ">5.15.1</QTVER>
+    <MaxSDK Condition="'$(MaxSDK)'==''">$(Artifacts)$(VersionTarget)\maxsdk</MaxSDK>
+    <MaxSdkLibRelease>$(MaxSDK)\lib\$(Platform)\Release</MaxSdkLibRelease>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+    <Import Project="$(MaxSDK)\ProjectSettings\PropertySheets\3dsmax.general.project.settings.props" />
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+    <Import Project="$(MaxSDK)\ProjectSettings\PropertySheets\3dsmax.cpp.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <IntDir>$(RepoRootDir)build\obj\$(Platform)\$(Configuration)\$(VersionTarget)\$(ProjectName)\</IntDir>
+    <MaxPdbDir>$(RepoRootDir)build\lib\$(Platform)\$(Configuration)\$(VersionTarget)\</MaxPdbDir>
+    <IntermediateOutputPath>$(IntDir)</IntermediateOutputPath>
+    <OutDir>$(ContentsDir)\bin\</OutDir>
+    <MaxRestrictedSDKInc>$(RepoRootDir)additional_includes\MaxRestrictedSdk\$(VersionTarget)</MaxRestrictedSDKInc>
+    <!-- 3ds Max MaterialX material plugin location -->
+    <MaterialXDir Condition="'$(MaterialXDir)'==''">$(Artifacts)$(VersionTarget)\$(VersionTarget)_3dsmax-component-materialX</MaterialXDir>
+    <!-- spdlog -->
+    <SpdlogInc Condition="'$(MaxUsdDevKit)'!='' and '$(SpdlogInc)'==''">$(MaxUsdDevKit)\spdlog</SpdlogInc>
+    <SpdlogInc Condition="'$(SpdlogInc)'==''">$(Artifacts)\spdlog</SpdlogInc>
+    <!-- GTest -->
+    <GoogleTestDir Condition="'$(GoogleTestDir)'==''">$(Artifacts)$(VersionTarget)\gtest</GoogleTestDir>
+    <GoogleTestInc>$(GoogleTestDir)\include</GoogleTestInc>
+    <GoogleTestLib>$(GoogleTestDir)\lib</GoogleTestLib>
+    <GoogleTestLib Condition="Exists('$(GoogleTestDir)\lib\$(debug_or_release)')">$(GoogleTestDir)\lib\$(debug_or_release)</GoogleTestLib>
+    <GoogleTestBin>$(GoogleTestDir)\bin</GoogleTestBin>
+    <GoogleTestBin Condition="Exists('$(GoogleTestDir)\bin\$(debug_or_release)')">$(GoogleTestDir)\bin\$(debug_or_release)</GoogleTestBin>
+    <!-- PySide / Shiboken -->
+    <PySideDir Condition="'$(MaxUsdDevKit)'!='' and '$(QTVER)'&gt;='6.0.0' and '$(PySideDir)'==''">$(MaxUsdDevKit)\PySide6\Pyside6</PySideDir>
+    <PySideDir Condition="'$(MaxUsdDevKit)'!='' and '$(QTVER)'&lt;='6.0.0' and '$(PySideDir)'==''">$(MaxUsdDevKit)\PySide2\site-packages/PySide2</PySideDir>
+    <PySideDir Condition="'$(QTVER)'&gt;='6.0.0' and '$(PySideDir)'==''">$(Artifacts)$(VersionTarget)\PySide6\PySide6</PySideDir>
+    <PySideDir Condition="'$(QTVER)'&lt;'6.0.0'  and '$(PySideDir)'==''">$(Artifacts)$(VersionTarget)\PySide2\site-packages/PySide2</PySideDir>
+    <PySideShibokenDir Condition="'$(MaxUsdDevKit)'!='' and '$(QTVER)'&gt;='6.0.0' and '$(PySideShibokenDir)'==''">$(MaxUsdDevKit)\PySide6\shiboken6</PySideShibokenDir>
+    <PySideShibokenDir Condition="'$(MaxUsdDevKit)'!='' and '$(QTVER)'&lt;='6.0.0' and '$(PySideShibokenDir)'==''">$(MaxUsdDevKit)PySide2\site-packages\shiboken2</PySideShibokenDir>
+    <PySideShibokenDir Condition="'$(QTVER)'&gt;='6.0.0' and '$(PySideShibokenDir)'==''">$(Artifacts)$(VersionTarget)\PySide6\shiboken6</PySideShibokenDir>
+    <PySideShibokenDir Condition="'$(QTVER)'&lt;'6.0.0' and '$(PySideShibokenDir)'==''">$(Artifacts)$(VersionTarget)\PySide2\site-packages\shiboken2</PySideShibokenDir>
+    <PySideInc>$(PySideDir)\include</PySideInc>
+    <PySideShibokenInc>$(PySideShibokenDir)_generator\include</PySideShibokenInc>
+    <PySideLib>$(PySideDir)</PySideLib>
+    <PySideShibokenLib>$(PySideShibokenDir)</PySideShibokenLib>
+    <PySideLibraries Condition=" '$(VersionTarget)'&gt;='2025' ">shiboken6.cp311-win_amd64.lib;pyside6.cp311-win_amd64.lib</PySideLibraries>
+    <PySideLibraries Condition=" '$(VersionTarget)'=='2024' ">shiboken2.abi3.lib;pyside2.abi3.lib</PySideLibraries>
+    <PySideLibraries Condition=" '$(VersionTarget)'=='2023' ">shiboken2.cp39-win_amd64.lib;pyside2.cp39-win_amd64.lib</PySideLibraries>
+    <PySideLibraries Condition=" '$(VersionTarget)'=='2022' ">shiboken2.cp37-win_amd64.lib;pyside2.cp37-win_amd64.lib</PySideLibraries>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(QtMsBuild)'=='' or !Exists('$(QtMsBuild)\qt.targets')">
+    <QtMsBuild>$(Artifacts)$(VersionTarget)\QtMsBuild</QtMsBuild>
+  </PropertyGroup>
+  <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
+    <Message Importance="High" Text="QtMsBuild: could not locate qt.targets, qt.props; project may not build correctly." />
+  </Target>
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt_defaults.props')">
+    <Import Project="$(QtMsBuild)\qt_defaults.props" />
+  </ImportGroup>
+  <PropertyGroup Condition=" '$(QTVER)'&gt;='6.0.0' " Label="QtSettings">
+    <QtModules>core;gui;widgets;opengl</QtModules>
+    <QtInstall Condition="'$(QtInstall)' == '' OR !Exists('$(QtInstall)')">$(Artifacts)$(VersionTarget)\Qt\$(QTVER)</QtInstall>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(QTVER)'&lt;'6.0.0' " Label="QtSettings">
+    <QtModules>core;gui;widgets</QtModules>
+    <QtInstall Condition="'$(QtInstall)' == '' OR !Exists('$(QtInstall)')">$(Artifacts)$(VersionTarget)\Qt\$(QTVER)</QtInstall>
+  </PropertyGroup>
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.props')">
+    <Import Project="$(QtMsBuild)\qt.props" />
+  </ImportGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <PreprocessorDefinitions>SPDLOG_WCHAR_TO_UTF8_SUPPORT;SPDLOG_WCHAR_FILENAMES;FMT_HEADER_ONLY;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition=" '$(QTVER)'&gt;='6.0.0' " >USE_PYSIDE_6;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SpdlogInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <LanguageStandard Condition="'$(VersionTarget)'&gt;'2025'">stdcpp17</LanguageStandard>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <!-- Prevent MUI creation command being called (from 3dsmax.common.tools.settings.props) until a proper loc process gets in place -->
+    <PostBuildEvent>
+        <Command></Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+</Project>
diff --git a/src/3dsmax.component.settings.props b/src/3dsmax.component.settings.props
new file mode 100644
index 0000000..a10f847
--- /dev/null
+++ b/src/3dsmax.component.settings.props
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+	<ImportGroup Label="PropertySheets">
+		<Import Project="./3dsmax.common.settings.props" Condition="$(HasImportedCommonProps) != '1'" />
+	</ImportGroup>
+	
+	<!-- common properties -->
+	<PropertyGroup>
+		<!-- If the "MaxBinariesDir" env variable is not set, default to the build output -->
+		<OutDirTests Condition="'$(MaxBinariesDir)' == ''">$(OutDir)</OutDirTests>
+		<OutDirTests Condition="'$(MaxBinariesDir)' != ''">$(MaxBinariesDir)\</OutDirTests>
+	</PropertyGroup>
+
+	<!-- Project settings -->
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(MaxSdkInc);$(MaxRestrictedSdkInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+			<PreprocessorDefinitions>MAX_$(VersionTarget);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(MaxSdkLibRelease);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/src/ApplicationPlugins/usd-component/Contents/Help/en-US/bootstrap.min.css b/src/ApplicationPlugins/usd-component/Contents/Help/en-US/bootstrap.min.css
new file mode 100644
index 0000000..6561b6f
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/Help/en-US/bootstrap.min.css
@@ -0,0 +1,7 @@
+/*!
+ * Bootstrap v4.0.0 (https://getbootstrap.com)
+ * Copyright 2011-2018 The Bootstrap Authors
+ * Copyright 2011-2018 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ */:root{--blue:#007bff;--indigo:#6610f2;--purple:#6f42c1;--pink:#e83e8c;--red:#dc3545;--orange:#fd7e14;--yellow:#ffc107;--green:#28a745;--teal:#20c997;--cyan:#17a2b8;--white:#fff;--gray:#6c757d;--gray-dark:#343a40;--primary:#007bff;--secondary:#6c757d;--success:#28a745;--info:#17a2b8;--warning:#ffc107;--danger:#dc3545;--light:#f8f9fa;--dark:#343a40;--breakpoint-xs:0;--breakpoint-sm:576px;--breakpoint-md:768px;--breakpoint-lg:992px;--breakpoint-xl:1200px;--font-family-sans-serif:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";--font-family-monospace:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier 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.4rem;font-size:87.5%;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:100%;font-weight:700}pre{display:block;font-size:87.5%;color:#212529}pre code{font-size:inherit;color:inherit;word-break:normal}.pre-scrollable{max-height:340px;overflow-y:scroll}.container{width:100%;padding-right:15px;padding-left:15px;margin-right:auto;margin-left:auto}@media (min-width:576px){.container{max-width:540px}}@media (min-width:768px){.container{max-width:720px}}@media (min-width:992px){.container{max-width:960px}}@media (min-width:1200px){.container{max-width:1140px}}.container-fluid{width:100%;padding-right:15px;padding-left:15px;margin-right:auto;margin-left:auto}.row{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;margin-right:-15px;margin-left:-15px}.no-gutters{margin-right:0;margin-left:0}.no-gutters>.col,.no-gutters>[class*=col-]{padding-right:0;padding-left:0}.col,.col-1,.col-10,.col-11,.col-12,.col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-auto,.col-lg,.col-lg-1,.col-lg-10,.col-lg-11,.col-lg-12,.col-lg-2,.col-lg-3,.col-lg-4,.col-lg-5,.col-lg-6,.col-lg-7,.col-lg-8,.col-lg-9,.col-lg-auto,.col-md,.col-md-1,.col-md-10,.col-md-11,.col-md-12,.col-md-2,.col-md-3,.col-md-4,.col-md-5,.col-md-6,.col-md-7,.col-md-8,.col-md-9,.col-md-auto,.col-sm,.col-sm-1,.col-sm-10,.col-sm-11,.col-sm-12,.col-sm-2,.col-sm-3,.col-sm-4,.col-sm-5,.col-sm-6,.col-sm-7,.col-sm-8,.col-sm-9,.col-sm-auto,.col-xl,.col-xl-1,.col-xl-10,.col-xl-11,.col-xl-12,.col-xl-2,.col-xl-3,.col-xl-4,.col-xl-5,.col-xl-6,.col-xl-7,.col-xl-8,.col-xl-9,.col-xl-auto{position:relative;width:100%;min-height:1px;padding-right:15px;padding-left:15px}.col{-ms-flex-preferred-size:0;flex-basis:0;-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;max-width:100%}.col-auto{-webkit-box-flex:0;-ms-flex:0 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diff --git a/src/ApplicationPlugins/usd-component/Contents/Help/en-US/index.html b/src/ApplicationPlugins/usd-component/Contents/Help/en-US/index.html
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--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/Help/en-US/index.html
@@ -0,0 +1,3020 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="description" content="USD for Autodesk 3ds Max">
+    <meta name="author" content="Autodesk Inc.">
+
+    <title>USD for Autodesk 3ds Max</title>
+
+    <link href="bootstrap.min.css" rel="stylesheet">
+    <style type="text/css">
+        html {
+            font-size: 14px;
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+
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+
+        .container {
+            max-width: 920px;
+        }
+
+        .usd-header {
+            max-width: 700px;
+        }
+
+        .border-top {
+            border-top: 1px solid #e5e5e5;
+        }
+
+        .border-bottom {
+            border-bottom: 1px solid #e5e5e5;
+        }
+
+        .box-shadow {
+            box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
+        }
+    </style>
+</head>
+
+<body>
+
+    <div class="d-flex flex-column flex-md-row align-items-center p-3 px-md-4 mb-3 bg-white border-bottom box-shadow">
+        <h5 class="my-0 mr-md-auto font-weight-normal">Autodesk 3ds Max</h5>
+    </div>
+
+    <div class="usd-header px-3 py-3 pt-md-5 pb-md-4 mx-auto text-center">
+        <h1 class="display-4">USD for Autodesk 3ds Max</h1>
+        <p class="lead">Support for USD content in Autodesk 3ds Max</p>
+    </div>
+
+    <main role="main" class="container">
+        <h4>Overview</h4>
+        <p>This plugin adds support for Pixar's Universal Scene Description (USD) in Autodesk 3ds Max.</p>
+        <p>If you like you what you see or have any feedback about these features, please <a href="#get-in-touch">let us
+                know</a>. We look forward to hearing from you to help us shape the future of this initiative.</p>
+
+        <div class="alert alert-warning rounded-0" role="alert">
+            <p>We may make major breaking changes from one version to the next in order to improve our APIs, or to provide support for new use cases.</p>
+            Please keep that in mind when making purchasing decisions based on the current capabilities.
+        </div>
+
+        <h4 class="pt-4">Uninstalling</h4>
+        <p>To uninstall this plugin:</p>
+        <ol>
+            <li>Open Window's <em>Add or remove program</em> tool.</li>
+            <li>Search for "USD for Autodesk 3ds Max".</li>
+            <li>Select the result and click the "Uninstall" button.</li>
+        </ol>
+
+        <h4 class="pt-4" id="get-in-touch">Get in touch</h4>
+        <p>We are eager to hear what you think of these capabilities!</p>
+        <p>Was there anything you liked? Did you find a bug? Do you have any ideas or USD content that you would like
+            share with us? Let us know on the <a
+                href="https://feedback.autodesk.com/project/forum/default.html?cap=9285baa2a65442e8ae5bc4eec88e790e"
+                target="_blank" id="3ds-max-forums-link">Autodesk 3ds Max Beta forums</a> or give your <a
+                href="https://www.autodesk.com/3dsmax-usd-feedback">feedback here</a>.</p>
+        <p>The success of this initiative depends on how we can serve your needs. Your feedback is important to us in
+            this partnership.</p>
+
+        <h4 class="pt-4">Release notes</h4>
+        <h5 data-current-version="0.9.0">v0.9.0 <small><span class="badge badge-danger text-uppercase rounded-0"style="vertical-align: text-top">New</span></small></h5>
+        What's New:
+        <ul>
+            <li>
+                Bump component version to 0.9 - new public release
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Changed MaterialX plugin utility to export using colorspace "sRGB" by default instead of "gamma22".
+            </li>
+            <li>
+                Fixed an issue where setting Textures for Draw Modes in the Prim Attributes could cause 3ds Max to become unresponsive.
+            </li>
+            <li>
+                Cleaned up USD Attribute Tooltips.
+            </li>
+            <li>
+                Fix expected behavior on PrimReader plugin not being loaded when 'providesTranslator' type is an ancestor type.
+            </li>
+            <li>
+                Fixed spinner for USD Prims to allow negative values.
+            </li>
+            <li>
+                Fixed options for loading a stage not persisting between multiple stage-loading actions.
+            </li>
+            <li>
+                Fixed unnecessary memory usage from textures that should not be loaded from deactivated prims in a USD Stage Object.
+            </li>
+            <li>
+                Update some labels and tooltips around the Draw Mode functions in the USD Stage Object.
+            </li>
+        </ul>
+
+        <h5>v0.8.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Added a rollup to the property editor to display "Extra Attributes" that do not belong to any USD Schema.
+            </li>
+            <li>
+                Added new display option on a USD Stage Object to display PointInstances as Box or Cross cards. The option will author all the necessary settings on the prims in the stage to make draw modes display on Pointinstancers into an anonymous sublayer of the session layer.
+            </li>
+            <li>
+                Added new function to generate a BezierShapeClass object from a USD Curve.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where the Command Panel Rollouts for the USD Stage could undesirably alter the appearance of the Command Panel.
+            </li>
+            <li>
+                Fixed issue where undoable commands were generated while editing spinners interactively in the property editor
+            </li>
+            <li>
+                Fixed an issue where the property editor UI fell out of sync with the data when attempting to edit USD instances.
+            </li>
+            <li>
+                Fixed an issue with transforming prototypes used by point instancers.
+            </li>
+            <li>
+                Fixed the behavior of the Plug-in Configuration Rollup to recall the user's last set state.
+            </li>
+            <li>
+                Fixed an issue where invalid blendshape could crash when importing the stage
+            </li>
+            <li>
+                Fixed changes to a prim's purpose not being displayed immediately in the viewport.
+            </li>
+            <li>
+                Fixed crash related to using USD Snaps on an empty stage.
+            </li>
+            <li>
+                Fix expected behavior on PrimReader plugin not being loaded when 'providesTranslator' type is an ancestor type.
+            </li>
+            <li>
+                Fixed the USD Explorer's ame-light theme readability for text and selection elements.
+            </li>
+        </ul>
+
+        <h5>v0.8.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for USDGeomCurves in the USD Importer.
+            </li>
+            <li>
+                Added ability to select and transform USD Point Instances.
+            </li>
+            <li>
+                Added support for the USD modify tab to remember rollup state even when multiple prims are selected.
+            </li>
+            <li>
+                Added prim attributes to the modify tab when selecting a prim, allowing the user to make edits on prim data as they would with standard Max objects.
+            </li>
+            <li>
+                Updated the USD Exporter to remember the rollup state between sessions.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed command panel not refreshing when undoing some edits to prim properties.
+            </li>
+            <li>
+                Fixed file inputs missing from the USD Attribute editor.
+            </li>
+            <li>
+                Fixed critical error causing a crash when importing USD.
+            </li>
+        </ul>
+
+        <h5>v0.8.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated USD export/import options to use a Dictionary.
+            </li>
+            <li>
+                Added new USD category to Snaps that allows snapping to USD Faces, Vertices and Edges.
+            </li>
+            <li>
+                Updated the functions in the USD Explorer for changing variants, visibility, etc. to respect the current EditTarget a user may have set via scripting. This also works for transforming prims in the viewport. Previously, the edits in the USD Explorer were always going to the session layer.
+            </li>
+        </ul>
+        <h5>v0.8.1</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated Max USD Export options to Dictionaries.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where deleting and adding a new skin modifier to a mesh will log an error message of multiple bind pose.
+            </li>
+        </ul>
+
+        <h5>v0.8.0</h5>
+        <ul>
+            <li>
+                Public release for the 0.8 version.
+            </li>
+        </ul>
+        <h5>v0.7.9</h5>
+        What's New:
+        <ul>
+            <li>
+                Added missing 'ShaderWriter::GetSubMtlDependencies' Python exposure
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed display of animated focal length when importing animating USD camera
+            </li>
+            <li>
+                Implemented fix for crash when changing root layer of a USD stage with modifiers.
+            </li>
+            <li>
+                Implemented improvements for editing the attribute path of a USD Float controller.
+            </li>
+            <li>
+                Implemented fix for crash when in the USD Float Controller's pick mode.
+            </li>
+            <li>
+                Fixed a defect where USD Stage edits cleared the undo stack.
+            </li>
+            <li>
+                Fixed a defect where undoing a deleted Stage object, that has a USD controlled camera as a child, results in duplicate cameras. 
+            </li>
+        </ul>
+        
+        <h5>v0.7.8</h5>
+        What's New:
+        <ul>
+            <li>
+                Added USD Position/Scale/Rotation controllers.
+            </li>
+            <li>
+                Change to Import/Export "Enter" key interaction to avoid accidental dialog confirmation.
+            </li>
+            <li>
+                Updated viewport selection of prims to default to selecting editable prims when selecting instanceable prims.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a Crash when exporting Skel animation with an invalid root prim
+            </li>
+            <li>
+                Fixed an issue with skinned animation data when Offset Baked was disabled during Export.
+            </li>
+        </ul>
+
+        <h5>v0.7.7</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated cameras created for a USDStageObject to be undeletable by users. The cameras are controlled by the USDStageObject.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed bad labels in USD float controllers.
+            </li>
+            <li>
+                Fixed an issue where under specific circumstances performing an Undo operation on a USD Stage node generation would crash.
+            </li>
+            <li>
+                Fixed issue where the wrong value was set on "Reset to Default" for the Stage Object animation option "Frames per Second" 
+            </li>
+            <li>
+                Fixed an issue with USD Stage during Animation playback where performance was lost in Proxy mode when switching between Proxy/Render.
+            </li>
+            <li>
+                Fixed a Color Space issue impacting 3ds Max 2024 and later where Gamma was not set to 1.0 for USD Material Nodes.
+            </li>
+            <li>
+                Exposed bump amount value in the UsdPreviewSurface scripted material to allow correcting normal map display issues in the 3dsMax viewport.
+            </li>
+            <li>
+                2x performance improvement of USD Explorer Auto-Expand to Selection.
+            </li>
+        </ul>
+
+        <h5>v0.7.6</h5>
+        What's New:
+        <ul>
+            <li>
+                The default translators (writers/readers) are all plugins to the USD component.
+            </li>
+            <li>
+                Added new USD Float Controller that can drive float, point2, point3 and point4 values in Max.
+            </li>
+            <li>
+                Updated to USD 0.24.05 for the beta build.
+            </li>
+            <li>
+                Exposed the TranslatorMaterial::AssignMaterial helper from the Max USD C++ SDK to Python.
+            </li>
+            <li>
+                Added support to use Zoom Extents on selected USD Prims.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a freeze when loading some USD scenes when the PXR_PLUGINPATH_NAME envirornment variable is set to the pluginInfo.json folder.
+            </li>
+            <li>
+                Fixed an issue where under specific circumstances performing an Undo operation on a USD Stage node generation would crash.
+            </li>
+            <li>
+                Fixed a missing string for USD Stage prim selection action being populated in the Undo stack as a generic action.
+            </li>
+            <li>
+                Fixed USD error in MAXScript listener when reactivating a USD Camera.
+            </li>
+            <li>
+                Fixed performance drop in the viewport when loading a USD Stage with instances containing many geomsubsets.
+            </li>
+            <li>
+                Fixed performance degradation on selecting prims in a USD stage.
+            </li>
+        </ul>
+
+        <h5>v0.7.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Added new USD Xform Controller that allows a Max node transform to be controlled by the transform of an xformable prim in a USD Stage.
+            </li>
+            <li>
+                Added samples to Max USD SDK to demonstrate how to create a custom UI for plugin-configurations in the USD Exporter and Importer.
+            </li>
+            <li>
+                Updated the USD Stage Object to bring in proxy cameras into 3ds Max that are controlled by underlying USD camera data. This allows a user to render from cameras in a USD Stage as well as look through them.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed display of animated focal length when importing animating USD camera
+            </li>
+            <li>
+                Fixed USD Payload load/unload state not being properly restored with Undo/Redo.
+            </li>
+            <li>
+                Fix regression of the kind type combobox in the USD stage object Viewport selection rollup.
+            </li>
+        </ul>
+
+        <h5>v0.7.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Added new USD Xform Controller that allows a Max node transform to be controlled by the transform of an xformable prim in a USD Stage.
+            </li>
+            <li>
+                Added support for multi-selection of USD prims in the viewport. Note that deep selection is not currently supported with USD Prims.
+            </li>
+            <li>
+                Added ability for plugin-developers to share a custom UI for their contexts in the USD Exporter to allow users to set custom plugin settings.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed severe performance degradation when the Undo Stack contains USD prim multi-selection.
+            </li>
+            <li>
+                Python exposure to USDSceneBuilderOptions Content Source option.
+            </li>
+            <li>
+                Fixed an issue where Importing animation data was not setting the Start and End frames to match the incoming animation frame range.
+            </li>
+            <li>
+                Fix issue where user can create prims under deactivated prims even though error message is shown. It is no longer possible to create a prim under a deactivated prim.
+            </li>
+            <li>
+                Fixed a performance issue of visibility switching of some USD large multi-prim selections.
+            </li>
+        </ul>
+
+        <h5>v0.7.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for converting Progressive Morphers to Inbetween Blendshshapes in the USD Exporter.
+            </li>
+            <li>
+                Added support for multi-selection of USD prims in the viewport.
+            </li>
+            <li>
+                Fixed issue with exporting multimaterials with connected material switchers on instanced object.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an import error with Meshes with just a morpher in a scene with other skinned meshes with bones bindings
+            </li>
+            <li>
+                Fixed Python exposure to USDSceneBuilderOptions Content Source option
+            </li>
+            <li>
+                Fixed a Morpher export issue with USD invalid identifier names of morph target starting with numeric values
+            </li>
+            <li>
+                Fixed a current frame export issue with multiple morphers in the scene
+            </li>
+            <li>
+                Fixed getClassName() not returning the correct class name with the USDStageObject class.
+            </li>
+            <li>
+                Fixed a problem in the Import Chaser C++ samples casting floats as doubles.
+            </li>
+        </ul>
+
+        <h5>v0.7.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for converting Progressive Morphers to Inbetween Blenshshapes in the USD Exporter.
+            </li>
+            <li>
+                Added support for toggling the visibility icons on prims in the USD Explorer.
+            </li>
+            <li>
+                Fixed an issue where undo didn't work for some text fields and drop downs on the stage's command panel.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where Undo would not display Prim selections in the Viewport.
+            </li>
+            <li>
+                Fixed issue with possible corruption of the material UI export options when modified from scripting.
+            </li>
+        </ul>
+
+        <h5>v0.7.1</h5>
+        What's New:
+        <ul>
+            <li>
+                Fixed issue with exporting Material switchers with connected multi-materials on instanced object.
+            </li>
+            <li>
+                Added support for undo/redo when selecting USD prims.
+            </li>
+            <li>
+                Added support for selecting multiple USD prims.
+            </li>
+            <li>
+                Removal of the export/import 'onCompletion' callbacks in favor of the export/import Chaser mechanics.
+            </li>
+            <li>
+                C++ SDK changes on the container mapping the exported Nodes to Prims.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed issue with bad relative path resolution when exporting MaterialX materials to separate layers.
+            </li>
+        </ul>
+
+        <h5>v0.7.0</h5>
+        What's New:
+        <ul>
+            <li>
+                Adjusted UI behavior in the USD Exporter to reduce likelihood of unintended changes to values with Spinners when using the scroll wheel.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where toggling USD Visibility within the USD Explorer could impact the Viewports performance.
+            </li>
+            <li>
+                Fix to prevent desynchonization between UI export options set through scripting and the interface.
+            </li>
+            <li>
+                Fixed an issue where changing the Morpher limits would affect the Morpher's animation weight.
+            </li>
+        </ul>
+
+        <h5>v0.6.9</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for mixing the material switcher and multi/sub-object materials in the USD Exporter for creating material variants.
+            </li>
+            <li>
+                Added a column in the USD Explorer to display a prim's authored kind.
+            </li>
+            <li>
+                Added support to import blendshapes from USD into Morphers.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where toggling USD Visibility within the USD Explorer could impact the Viewports performance.
+            </li>
+            <li>
+                USDView no longer causes a lingering 3dsMax Python 3 Interpreter process after closing the window.
+            </li>
+            <li>
+                USD Stage consolidation memory usage improvements.
+            </li>
+            <li>
+                Fix explorer refresh issue with long treeview.
+            </li>
+            <li>
+                Fix issue with row selection in USD Explorer where horizontal scroll position shifts back and forth.
+            </li>
+            <li>
+                Fix animated instance selection display.
+            </li>
+            <li>
+                Fixed selection highlighting issue causing needless errors in the listener, affecting performance.
+            </li>
+            <li>
+                Stabilized the sub-object mode transform operations.
+            </li>
+            <li>
+                Prevent materials from disappearing after prim transform operations.
+            </li>
+            <li>
+                Prevent auto-key feature from interfering with animation import.
+            </li>
+            <li>
+                Only move prims that belong to the selected USD Stage.
+            </li>
+        </ul>
+
+        <h5>v0.6.8</h5>
+        What's New:
+        <ul>
+            <li>    
+                Added ability to expand/contract the entire hierarchy below a prim with CTRL+LMB.
+            </li>
+            <li>
+                Improved the visibility of inactive prims in the USD Explorer.
+            </li>
+            <li>
+                Added a column in the USD Explorer to display a prim's authored kind.
+            </li>
+            <li>
+                Added ability to transform a USD prim in the viewport.
+            </li>
+            <li>
+                Brought back the Load Payloads checkbox in the load stage dialog.
+            </li>
+            <li>
+                Added parent highlighting to selected prims in the USD Explorer.
+            </li>
+            <li>
+                Updated the labels and tooltips in the USD Preview Surface Material.
+            </li>
+            <li>
+                Added support to keep the USD Context menus open when holding down the CRTL key. The is helpful when changing variants on a USD Prim and wanting to test different variant selections.
+            </li>
+            <li>
+                Updated the USD exporter to use the current timeline frame range when initially setting the export range.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed defect in orientation of bones when exporting to USDSkel.
+            </li>
+        </ul>
+        <h5>v0.6.7</h5>
+        What's New:
+        <ul>
+            <li>
+                Added selection highlighting to prims in a USD Stage.
+            </li>
+            <li>
+                Added support for multiple material targets when exporting a Material Switcher.
+            </li>
+            <li>
+                Prim name column now auto-expands to fill available size of USD Explorer.
+            </li>
+            <li>
+                Added ability to customize what columns are available in the USD Explorer.
+            </li>
+            <li>
+                Updated the USD exporter to use the current timeline frame range when initially setting the export range.
+            </li>
+            <li>
+                Fixed Stage Node layout to be consistent with other windows layout.
+            </li>
+            <li>
+                Fixed an issue where toggling the visibility state of some prims could cause it to stay visually out of sync.
+            </li>
+        </ul>
+        <h5>v0.6.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for importing animated attributes for USD lights.
+            </li>
+            <li>
+                Animated camera attributes like FOV are now supported in the USD Importer.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed USD Explorer visibility state to refresh correctly.
+            </li>
+        </ul>
+        <h5>v0.6.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Improved the USD SDK samples to require less effort to get running.
+            </li>
+            <li>
+                Updated several classes in the MaxUSD projects that were not namespaced to be namespaced to maxUsd.
+            </li>
+            <li>
+                Added a new Prim sub-object mode to select prims in a USDStageObject.
+            </li>
+            <li>
+                New option added to the USD explorer to auto-expand the tree to the current selection.
+            </li>
+            <li>
+                Prim name column now auto-expands to fill available size of USD Explorer.
+            </li>
+            <li>
+                The checkbox for loading payloads was removed from the USDStageObject modify tab since payload rules are now working in the USD Explorer.
+            </li>
+            <li>
+                Added ability to specify specific animation ranges in the USD Importer.
+            </li>
+            <li>
+                Update for 3ds Max SDK 2025 freeze (M4479)
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed importing some USDSkel prims into Max.
+            </li>
+            <li>
+                Fixed USD Exporter not fitting onto small screen resolutions.
+            </li>
+            <li>
+                Fixed an undo crash in the USD Explorer after toggling a prim's instanceable setting.
+            </li>
+            <li>
+                Restricted the material layer setting to be output to the same file as the main USD file when exporting a material layer.
+            </li>
+            <li>
+                Fixed an issue where USD Skel exports had deformation results that weren't matching the source animation.
+            </li>
+        </ul>
+        <h5>v0.6.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the USD Exporter to set the prim type of the material scope from Def to Scope.
+            </li>
+            <li>
+                Updated USD version to 23.11 for 3ds Max 2025.
+            </li>
+            <li>
+                Fixed loading USD files into a Stage node that were coming up empty but could be loaded into USDView.
+            </li>
+            <li>
+                USD Importer now has a setting for using/disabling the progress bar via scripting (UIOption.UseProgressBar = true|false).
+            </li>
+        </ul>
+
+        <h5>v0.6.3</h5>
+ What's New:
+        <ul>
+            <li>
+                Added a new export options to enable or disable the last resort USDPreviewSurface material (options.UseLastResortUSDPreviewSurfaceWriter).
+            </li>
+            <li>
+                Added further validation of target material file paths to prevent unicode characters.
+            </li>
+            <li>
+                Added support for the &lt;filename&gt; token in exported material files paths. It is replaced by the root layer file name at export time.
+            </li>
+            <li>
+                Improved the Prim reader API documentation and sample.
+            </li>
+            <li>
+                Added support for basic rectangle selection of the USD Stage Object (only support's crossing mode).
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed issue with animation import not setting key frames at time 0.
+            </li>
+            <li>
+                Fixed erroneously filtered  typeless prims in the USD Stage prim selection dialog.
+            </li>
+            <li>
+                Fixed a crash when exporting to a material layer already loaded in memory.
+            </li>
+            <li>
+                Fixed a USDSkel bone import issue with Y-up source data.
+            </li>
+            <li>
+                Fixed instance import transform issue with Y-up source data.
+            </li>
+        </ul>
+        
+        <h5>v0.6.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Added a sample to the USD SDK on using an Import Chaser.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed incorrect transforms when importing instances.
+            </li>
+            <li>
+                Fixed error that could cause the USD Explorer to not show any USD data when opened.
+            </li>
+            <li>
+                Fixed the name of the USD Plugin not having a human-readable format in the Windows Control Panel.
+            </li>
+            <li>
+                Fixed defect causing the USD Tools to not launch from the command line.
+            </li>
+            <li>
+                Fixed problem in the USD Importer importing materials on prims with multiple geomsubsets.
+            </li>
+            <li>
+                Fixed incorrect log error in USD Importer when importing some USD files.
+            </li>
+            <li>
+                Fixed incorrect bind transform when importing USDSKel from some USD files.
+            </li>
+            <li>
+                Fixed missing translation and rotation animation at "root" level when importing some USD files (such as the Walking Pixar Female). 
+            </li>
+            <li>
+                Fixed duplicate nodes being created when importing USD files with instances containing hierarchies.
+            </li>
+            <li>
+                Updated the USD Exporter to block the export and warn the user of invalid characters in material names.
+            </li>
+        </ul>
+        
+        <h5>v0.6.1</h5>
+        What's New:
+        <ul>
+            <li>
+                3ds Max USD Component updated to a newer installer framework. With this new installer, previous versions from 0.5 and older need to be manually uninstalled to be removed from the system.
+            </li>
+            <li>
+                The USD Exporter can now export the Material Switcher material as variantSets.
+            </li>
+            <li>
+                Added Context and Chasers to the USD Importer SDK.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue resizing the "Prim name" column in the USD Explorer to not work in odd ways. Note that after this fix, the prim name column will no longer auto-expand to fit available space.
+            </li>
+            <li>
+                Fixed an issue where importing a USD file with different system units format would bring bad data.
+            </li>
+            <li>
+                Fixed an issue when specifying .usdz for Material File Generation caused 3ds Max to crash
+            </li>
+            <li>
+                Fixed an issue where wrong bone animation was being used outside the USD time range when importing a USD file using USDSkel.
+            </li>
+            <li>
+                Fixed an issue where skinned meshes were not being bound to the correct bones when importing USD.
+            </li>
+            <li>
+                Fixed an issue where Blendshape content was exported with Y-up settings would not have the expected spatial coordinates.
+            </li>
+            <li>
+                Fixed an issue where the plugin would throw an error when loaded in localized 3ds Max versions
+            </li>
+            <li>
+                Fixed USDView not launching properly in 3ds Max 2025.
+            </li>
+            <li>
+                Fixed an issue where "Copy Prim Path" menu option would show up in unintended locations.
+            </li>
+        </ul>
+
+        <h5>v0.6.0 <small></h5>
+        What's New:
+        <ul>
+            <li>
+                Updated SDK documentation for 0.6 release to include Import Chasers, ShaderReader and PrimReader.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed issue with animation import not setting key frames at time 0.
+            </li>
+            <li>
+                Fixed a USDSkel bone import issue with Y-up source data.
+            </li>
+            <li>
+                Fixed a crash when exporting to a material layer already loaded in memory.
+            </li>
+            <li>
+                Fix an issue where importing usd data would create duplicate geometry on instances with hierarchies.
+            </li>
+        </ul>
+
+        <h5>v0.5.8</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support to import USD Skel Animations into 3ds Max.
+            </li>
+            <li>
+                It's now possible to the edit the Target layer, and default layer of materials in the exporter.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue with bounding boxes in a Stage with Skel animation and unskinned meshes.
+            </li>
+        </ul>
+
+        <h5>v0.5.7</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the visibility icon for the USD Explorer to be more legible.
+            </li>
+            <li>
+                Update several tooltips to better inform the user.
+            </li>
+            <li>
+                API Change, new feature: Prim readers.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where the '?' button wouldn't open the documentation page.
+            </li>
+            <li>
+                Fixed an issue where tool tips where not showing up in the correct place for the USD animation roll up.
+            </li>
+            <li>
+                Fixed an issue that could cause a visual bug when docking the USD Explorer.
+            </li>
+        </ul>
+
+        <h5>v0.5.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M3364)
+            </li>
+            <li>
+                Added support for the USD Explorer to respect window snapping.
+            </li>
+            <li>
+                Updated the USD Plugin to use USD 23.08 in Max 2025 builds.
+            </li>
+            <li>
+                Updated the USD Plugin to use Python 3.11.3 in Max 2025 builds.
+            </li>
+            <li>
+                Added new right-click menu in the USD Explorer to copy a prim's path to the clipboard.
+            </li>
+            <li>
+                Added support to import USD UDIM textures to 3ds Max from a UDIM in a USDPreviewSurface shader.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a crash when undoing the loading root layer into a USD Stage.
+            </li>
+            <li>
+                Fixed an issue where clearing session layer was not refreshing with invisible and deactivated prims
+            </li>
+            <li>
+                Fixed an issue where the stage root bounding box would not be correct for scenes exported with UsdSkel
+            </li>
+            <li>
+                Fixed an issue where the USD Explorer would not update properly with user inputs
+            </li>
+        </ul>
+        <h5>v0.5.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M3231)
+            </li>
+            <li>
+                Added support for the USD Explorer to respect window snapping.
+            </li>
+            <li>
+                A display menu has been added to hide inactive prims from the USD Explorer.
+            </li>
+            <li>
+                Clearing a search in the USD Explorer will now restore the previous collapsed or expanded state of the tree view.
+            </li>
+            <li>
+                The USD Explorer now only auto-expands the first level of prims in the tree view.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where material bindings were not always binding to the correct prims.
+            </li>
+            <li>
+                Fixed a crash that could occur when adding prims to instantiated USD content.
+            </li>
+            <li>
+                Fixed an issue preventing users from adding prims to the root of a USD Stage in the USD Explorer.
+            </li>
+        </ul> 
+        <h5>v0.5.4</h5>   
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M3190)
+            </li>
+            <li>
+                Users can now undo edits made from the USD Explorer Tree View.
+            </li>
+            <li>
+                Added support for interface nodes for MaterialX.
+            </li>
+            <li>
+                USD Explorer now supports the Visibility property.
+            </li>
+            <li>
+                A new option is available from USD Parameters rollout to open the USD Explorer.
+            </li>
+            <li>
+                Added a PostExport() Callback for PrimWriters. This is an SDK change.
+            </li>
+            <li>
+                Removed unnecessary UsdTransform2d from material exports.
+            </li>
+            <li>
+                Added Icons and Badges to USD Explorer Tree View.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where it was no longer possible to Copy USD Stages in the Viewport.
+            </li>
+            <li>
+                UFE python bindings now available in all 3dsMax versions.
+            </li>
+        </ul>
+        <h5>v0.5.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M2961)
+            </li>
+            <li>
+                Added an option to disable the export progress bar for script execution.
+            </li>
+            <li>
+                USD Explorer context menu enrichment.
+            </li>
+            <li>
+                USD Exporter supports UDIMs for USD Preview Surface.
+            </li>
+            <li>
+                Updated the USD Exporter to report an export config error if a non-empty node list is provided, but the content source is not properly set.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an incorrect error being generated in the logs anytime a Chaser was enabled during export.
+            </li>
+            <li>
+                Fixed a crash related to instantiated content within a USD Stage.
+            </li>
+            <li>
+                Fixed an issue where baked animation data using Polys could have corrupted normals when exported to .usd.
+            </li>
+               <li>
+                Fixed USD Explorer Focus and Docking behavior.
+            </li>
+        </ul>
+        <h5>v0.5.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M2821)
+            </li>
+            <li>
+                Updated the USDStageObject to not allow an empty stage mask value. <br>
+                If and empty string value is given, the value is automatically set to "/".
+            </li>
+            <li>
+                A tree view of the USD data is now available so that artists can view the prims that make up their stage object.
+
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a crash in the MaterialX Shader when undoing the explode MaterialX function.
+            </li>   
+            <li>
+                Fixed an issue where USD Skel exports had deformation results that weren't matching the source animation.
+            </li>
+            <li>
+                Fixed an issue where baked animation data using Polys could have corrupted normals when exported to .usd.
+            </li>
+            <li>
+                Fixed the command line USD Tools not working when using a string that contains multiple consecutive spaces in the commands.
+            </li>
+        </ul>
+        <h5>v0.5.1</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M2608)
+            </li>
+            <li>
+                Updated the USDStageObject to not allow an empty stage mask value. If and empty string value is given, the value is automatically set to "/".
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Updated the MaterialX Importer/Exporter to not pop up with a messagebox on every warning; now prints warnings to the MAXScript listener.
+            </li>
+            <li>
+                The USD Exporter now sets Map Channel 1 to be named "st" in meshes by default.
+            </li>    
+            <li>
+                Fixed a crash in the MaterialX Material when undoing the explode MaterialX function.
+            </li>  
+            <li>
+                Fixed an issue where USD and MaterialX shared the same name in the Plug-in Manager.
+            </li>  
+            <li>
+                Fixed an issue where the description for the mtlXIOUtil utility was being truncated. 
+            </li>  
+            <li>
+                Fixed an issue where USD Skel exports had deformation results that weren't matching the source animation.
+            </li>  
+            <li>
+                Fixed an issue where some MaterialX plug-in files were being generated in unexpected locations.
+            </li>        
+        </ul>
+        <h5>v0.5.0</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M2394)
+            </li>
+            <li>
+                Basic MaterialX support is now available with the USD installer.
+            </li>
+            <li>
+                A ShaderWriter is available that exports the MaterialX scripted material in the USD file as a Mtlx Reference. <br>
+                A "MaterialX" target is also available in the Export Dialog UI.
+            </li>
+        </ul>
+        <h5>v0.4.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M2159)
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue where Morphers with assigned non-zero values on first frame were not being evaluated correctly.
+            </li>
+            <li>
+                Fixed an issue where Morpher data was not being exported correctly.
+            </li>
+            <li>
+                Fixed an issue where some USD buttons were not being sized correctly for certain screen resolutions.
+            </li>
+            <li>
+                Fixed some erroneous tooltips being displayed in the USD Export UI.
+            </li>
+            <li>
+                Fixed loading a USD Stage into 3ds Max when the USD file referenced MaterialX files.
+            </li>
+        </ul>
+        <h5>v0.4.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support to export Morpher modifier channels as Blend Shapes in USD.
+            </li>
+            <li>
+                Added button in USDStageObject to clear the current session layer. A temporary solution to clearing scripted USD changes in the session layer in preparation for adding a layer editor.
+            </li>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M1979)
+            </li>
+        </ul>
+        <h5>v0.4.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for the 3ds Max Midgard SDK. (M1740)
+            </li>
+        </ul>
+        <h5>v0.4.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Moved Skin option to the Animation rollout in the USD Exporter.
+            </li>
+            <li>
+                Added a new Python class to export materials to USD and bind to prims to help scripters and tool developers to build custom tools with materials.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed some mismatched materials on USD prims compared to some multimaterial setups.
+            </li>
+            <li>
+                Fixed USD exporter UI not respecting several options.
+            </li>
+            <li>
+                Fixed the Display Icon not working properly in the USDStageObject. 
+            </li>
+        </ul>
+
+        <h5>v0.4.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the USD Exporter to export non-time-varying topology changes for data channels that do not change in animated exports. This reduces file sizes and improves performance for animated meshes viewed in a Stage.
+            </li>
+            <li>
+                Added the ability to supply an explicit python.exe path (via --python-exe) to the USD tools bundled with the USD Plugin. Read RunUsdTool.bat in the bin folder of the plugin for more information.
+            </li>
+            <li>
+                Improved the performance of generating preview materials in the viewport for a USD Stage Object set to display materials.
+            </li>
+            <li>
+                Updated the USD Exporter to properly bind materials to USD GeomSubsets when the material IDs on the mesh are greater than the Multimaterial numsubs.
+            </li>
+            <li>
+                Updated USDView that ships with the 3ds Max USD plugin to display MaterialX.
+            </li>
+            <li>
+                Updated the USD Exporter to use the new menu system introduced in 3ds Max 2025 branch to create the File > Reference > USD Stage... menu.
+            </li>    
+            <li>
+                Refactored the USD Exporter code to be significantly faster at exporting complex scenes with interdependencies that are animated.
+
+                <br/><br/>SDK CHANGES : 
+
+                <br/>The export changes required major changes to the PrimWriter API. The PrimWriter interface now also better aligns with the ShaderWriter interface.
+
+                <br/>All the samples were updated accordingly.
+
+                <br/><br/>Notable changes : 
+                <br/>- Every Node->Prim translation now gets its own PrimWriter instance. Previously, a single instance was created for the entire export.
+                <br/>- The CanConvert() method was renamed to CanExport() and was made static. A static_assert makes sure the method exists in derived PrimWriters.
+                <br/>- As a consequence, the PrimWriter's methods no longer receive a 3dsMax node as argument, instead, the node can be retrieved using PrimWriter::GetNode().
+                <br/>- PrimWriter::Write() is now called multiple times on animated data, for each frame that needs to be exported.
+                <br/>- New PrimWriter method GetValidityInterval() : Enables PrimWriter to specify the validity interval of their exported data at a certain time. From this, the exporter figures out at what frames PrimWriter::Write() needs to be called (base implementation returns the object's validity interval).
+                <br/>- New header TimeUtils.h
+                <br/>- The TimeConfig class has been modified to ease usage, all conversions TimeValue/3dsMax frame/TimeCode are now handled from there.
+                <br/>- New class "ExportTime" : Represents a single time sample export configuration. I.e. the 3dsMax time value, and what USD timecode it corresponds to.
+                <br/>- MeshConverter::ConvertToUSDMesh() now also receives a specific time frame to convert the mesh at.
+            </li>                
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Animation Frame Range now correctly accepts negative values.
+            </li>
+        </ul>
+        <h5>v0.4.1</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the default material scope in the USD Exporter from "Materials" to "mtl" to align with Maya.
+            </li>
+            <li>
+                Updated the USD Exporter to be organized into rollouts.
+            </li>
+            <li>
+                Updated the USD Exporter to export non-renderable geometry objects with the Guide purpose.
+            </li>
+            <li>
+                Updated USD Exporter to export Group Nodes as the USD "group" kind.
+            </li>
+            <li>
+                Changed the defaultPrim to "root" in the USD Exporter.
+            </li>
+            <li>
+                Separated USDZ from the other USD file types in the USD Exporter to make it easier to understand how to export USDZ.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a defect in the USD Exporter when exporting some scenes with big numbers on their names.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Fixed incorrect USDStageObject ParamBlock parameter SourceAnimationEndTimeCode naming from SourceAnimationEndFrameTimeCode to SourceAnimationEndTimeCode.
+            </li>
+        </ul>
+
+        <h5>v0.4.0</h5>
+        What's New:
+        <ul>
+            <li>
+                The USD Exporter has been updated to merge Plugin-Configuration settings and user-settings, allowing USD Preview Surface materials to be written alongside context-driven materials, such as Vray Materials (when an appropriate version of Vray is installed).
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Updated the USD Exporter to use the Non-Localized name of Material classes in the shader writer.
+            </li>
+        </ul>
+
+        <h5>v0.3.8</h5>
+        Fixes:
+        <ul>
+            <li>
+                Fixed some transparent materials not displaying in the viewport.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Added warnings to the USD Export log when exporting to USDSkel and there are modifiers above the Skin modifier.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Disable modifiers changing the geometry in a way incompatible with UsdSkel on export.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Fixed USDStageObject.SelectRootLayerAndPrim() not returning the Payalods option. The Payloads option now returns as a boolean in the third item in the resulting array.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Removed the term "beta" from the USD plugin.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Updated the USD Exporter label for USDSkel to "Skin" instead of "Skeletons" to match the conventions of other exporters.
+            </li>
+        </ul>
+        <h5>v0.3.7</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the USD version to 22.11 for 3ds Max 2024.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Added USDSkel support to the USD Exporter. When enabled, skinned meshes will export as USDSkel instead of animated vertex caches.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Cleaned up some tooltips in the Animation rollout of the USDStageObject.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Cleaned up API to reduce the amount of build warnings when creating plugins for the 3ds Max USD.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed some transparent materials not displaying in the viewport.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Updated USD Exporter default primvar name of UV channel 1 from "st" to "st0". This is a temporary fix to deal with a MaxToA issue introduced with the change to USD 22.11.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Added warnings to the USD Export log when exporting to USDSkel and there are modifiers above the Skin modifier.
+            </li>
+        </ul>
+        <h5>v0.3.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 SDK O888-64 release; SDK freeze.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Improved support for opacity in the MaxUsdPreviewSurface material.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Fixed defect causing unexpected evaluation of the stage while manually editing the Stage mask.
+            </li>
+        </ul>
+        <h5>v0.3.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Update the material target list in USD exporter UI to only list USD Preview Surface, other targets are expected to be enabled part of plugin configurations.
+            </li>
+            <li>
+                The items in the plugin configuration combobox are now checkable. Multiple elements can be selected or none of them can be selected.
+            </li>
+            <li>
+                Fixed missing sourceColorSpace, scale and bias settings for Normal maps in the USD Exporter that was casing incorrect normals display in USD. Also, for non-Normal maps, sourceColorSpace will be set to "raw".
+            </li>
+            <li>
+                Added support for Alembic references in the USD Stage.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed defect where texture paths could be wrong in the USDZ exporter.
+            </li>
+            <li>
+                Fixed crash when changing a USD Stage's prim's active state via scripting and then changing the display settings of the stage.
+            </li>
+            <li>
+                Fixed defect where the RenderUSDTimeCode could only be queried at the current frame in the Max timeline.
+            </li>
+        </ul>
+
+        <h5>v0.3.4</h5>
+        <ul>
+            <li>
+                Fixed crash in USD Exporter when a PrimWriter had changed the USD hierarchy in a way that the exporter did not expect.
+            </li>
+            <li>
+                The USD Exporter now utilizes the Context to set needed Chaser and Shader settings for plugins. Plugins need to update their implementation to use the new Context feature. This removes the need for the user to turn on multiple options in the exporter for custom plugins.
+            </li>
+            <li>
+                Support multiple UV channels for offline USD Stage rendering using the fallback method.
+            </li>
+        </ul>        
+        <h5>v0.3.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the USD Exporter to comply with USD standards for not nesting shader nodes.
+            </li>
+            <li>
+                Added self.GetNodesToPrims() to PrimWriters that will get a map of prims made from nodes in the scene. Helpful for writing associations to prims created from other nodes in the scene.
+            </li>
+            <li>
+                Added the <tt>.version</tt> property to the maxUsd Python module to know the USD plugin version.
+            </li>
+            <li>
+                Added an option in the USD Exporter to not nest Gprims. This option will now be on by default and makes the USD created from 3ds Max conform more to the general USD guidelines.
+            </li>
+        </ul>
+        <h5>v0.3.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated the implementation of Macroscripts in the USD installer to align with how Application Plugins are intended to be packaged.
+            </li>
+            <li>
+                Chaser registration now supports additional fields: a nice name and description. Improves how chasers are displayed in the USD export UI.
+            </li>
+        </ul>
+        <h5>v0.3.1</h5>
+        What's New:
+        <ul>
+            <li>
+                Inform user in case of missing requirements for HdStorm
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed defects around objects that have non-invertible matrices in the USD Exporter and the USD Stage Object.
+            </li>
+        </ul>
+
+        <h5>v0.3.0</h5>
+        What's New:
+        <ul>
+            <li>
+                First public beta release of the USD Stage Node to reference USD files directly into 3ds Max.
+            </li>
+            <li>
+                First public beta release of the Max USD SDK that allows 3rd-party developers to extend the USD Exporter. SDK available in a separate download.
+            </li>
+        </ul>        
+        Fixes:
+        <ul>
+            <li>
+                Fixed viewport clipping on USD data with missing extent information.
+            </li>
+            <li>
+                Fixed python error output to the console on certain USD librairies being initialized.
+            </li>
+        </ul>        
+        <h5>v0.2.26</h5>
+        What's New:
+        <ul>
+            <li>
+                Added a menu item into the File > Reference Menu to load in a USD file as a reference at the scene origin.
+            </li>
+            <li>
+                Updated the order of the rollouts in the USD Stage object.
+            </li>
+            <li>
+                Increased the size of the File and Mask buttons in the USD Stage parameters rollout.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed the Animation rollout in a USD Stage Object not matching the width of other rollouts.
+            </li>
+            <li>
+                Fixed the the "Create Stage from USD File" menu opening while in the USD Stage Object File selection menu and the user presses 'cancel'.
+            </li>
+            <li>
+                Stage performance improvements.
+            </li>
+            <li>
+                Bounding box rework.
+            </li>
+        </ul>
+        <h5>v0.2.25</h5>
+        What's New:
+        <ul>
+            <li>
+                The USD Stage Parameters UI has been cleaned up.
+            </li>
+            <li>
+                The USD Stage now has a Start and Speed option to set animation offsets and scaling.
+            </li>
+            <li>
+                USDGeomSubSet, Material and Shader prims are no longer listed when using the USD Stage's Prim Browser.
+            </li>
+            <li>
+                The Max USD SDK has been updated to expose the MeshConverter to the SDK.
+            </li>
+            <li>
+                New method `OpenInUsdView` in the `maxUsd` Python module to launch USDView from inside a Python or MAXScript script.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed a crash loading some USD files into the USD Stage node.
+            </li>
+            <li>
+                Fixed a crash when rendering some USD Stage nodes.
+            </li>
+        </ul>
+        <h5>v0.2.24</h5>
+        What's New:
+        <ul>
+            <li>
+                Added Python and C++ samples for export chasers in the USD SDK.
+            </li>
+            <li>
+                Added new Timeline rollout to the USDStageObject. This rollout gives options to offset, limit and scale the animation of the stage.
+            </li>
+            <li>
+                Added new MAXScript command UsdStageObject.SelectRootLayerAndPrim() that will open a browsing window to select a USD file and a prim path. Returns a string array where element 1 is the path to the USD file and element 2 will return a prim path if one is selected.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed problems picking USD Stage nodes that are instanced.
+            </li>
+            <li>
+                Fix issue around USDView not opening from exporter when the PATH environment variable contains binaries that are conflicting with the ones from the 3ds Max USD component.
+            </li>
+            <li>
+                Fixed a performance regression viewing a USD Stage that had pointinstances.
+            </li>
+            <li>
+                Fixed the Prim Mask list not remembering current selection when opening a USD Stage prim mask dialog and a prim had already been selected.
+            </li>
+            <li>
+                Fixed a display error in the USD Stage prim browser that would show a blank list.
+            </li>
+            <li>
+                Fixed an issue that would cause the USD prim browser window to keep growing in size with some actions.
+            </li>
+            <li>
+                Fixed file references in exported USD to use forward slashes instead of back slashes so that USD files created from Max can load in all USD environments instead of just Windows.
+            </li>
+        </ul>
+
+        <h5>v0.2.23</h5>
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O656-63.16 release.
+            </li>
+            <li>
+                Exposed new UI to configure export chasers from the USD Export dialog.
+            </li>
+            <li>
+                Normalize export asset reference paths (using forward slashes, for compatibility with mac/unix).
+            </li>
+            <li>
+                Fixed issue with "Mesh Merge" when display purposes are toggled.
+            </li>
+            <li>
+                Fixed issue with UsdStageObject material textures not updated as expected when reloading USD layers.
+            </li>
+            <li>
+                Fixed export to USDZ for 3dsMax scene with USD Stage Objects.
+            </li>
+            <li>
+                Properly export USD purpose and kind attribute on 3dsMax object with modifiers applied.
+            </li>
+        </ul>
+        <h5>v0.2.22</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O630-63.15 release.
+            </li>
+            <li>
+                Improvements in material creation speed
+            </li>
+            <li>
+                Fix minor UI related bugs
+            </li>
+        </ul>
+        <h5>v0.2.21</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O608-63.14 release.
+            </li>
+            <li>
+                Fix crash on material export for instanced data from usd stage objects
+            </li>
+            <li>
+                Fix kitchen set instance transforms
+            </li>
+            <li>
+                Subset consolidation improvement
+            </li>
+        </ul>
+        <h5>v0.2.20</h5>
+        What's New:
+        <ul>
+            <li>
+                Removed legacy material conversion scripts. Now always using Shader Writers.
+            </li>
+            <li>
+                Export "chasers" can now be registered for export.
+            </li>
+            <li>
+                Updated to USD 21.11
+            </li>
+            <li>
+                Fixed a bug preventing the user to properly set the root layer paths, when creating multiple USD Stage objects.
+            </li>
+        </ul>
+        <h5>v0.2.19</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O561-63.12 release.
+            </li>
+            <li>
+                There is a new property to the USDStageObject called .PointedPrim which is a string denoting the path to prim currently under the cursor. This property allows tool developers to create scripted tools for working with USD data in the viewport.
+            </li>
+            <li>
+                Added a new dialog in the command panel for a USD Stage node to browse for a USD file to use as a reference.
+            </li>
+            <li>
+                Added PrimWriter and ShaderWriter to new USD Extensibility system.
+            </li>
+        </ul>
+        <h5>v0.2.18</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O545-63.11 release.
+            </li>
+            <li>
+                Fix to 'DisplayGuide' setting does not respect setting during Filo I/O operations.
+            </li>
+            <li>
+                Fix object picking when changing the system units of the 3dsmax scene / payload render problem.
+            </li>
+            <li>
+                Make sure to include the mesh's transform when computing the instance transforms.
+            </li>
+        </ul>
+        <h5>v0.2.17</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O522-63.10 release.
+            </li>
+        </ul>
+        <h5>v0.2.16</h5>
+        What's New:
+        <ul>
+            <li>
+                Improved USD Stage rollup UI, added stage mask functionality and dialog for browsing for a prim. 
+            </li>
+            <li>
+                Added Stage Icon for Stage object in the viewport.
+            </li>
+            <li>
+                Replace Display Mode checkboxes with DropDown.
+            </li>
+            <li>
+                Fixed issues relating to Intel dataset:
+                    <ul>
+                        <li>
+                            Fixed badly exported data on corrupt normals.
+                        </li>
+                        <li>
+                            Fixed crash in the UsdStage object on badly formed USD primvars.
+                        </li>
+                    </ul>
+            </li>
+        </ul>
+        <h5>v0.2.15</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O479-63.8 release.
+            </li>
+        </ul>
+        <h5>v0.2.14</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O457-63.7 release.
+            </li>
+            <li>
+                Added mesh merge viewport performance options.
+            </li>
+        </ul>
+        <h5>v0.2.13</h5>
+        What's New:
+        <ul>
+            <li>
+                Fixed a crash when exporting USD Stage objects are USD references.
+            </li>
+        </ul>        
+        <h5>v0.2.12</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O408-63.4 release.
+            </li>
+            <li>
+                The UsdStageObject now properly displays UsdPreviewSurface materials using texture transforms (UsdTransform2d) and texture wrap modes.
+            </li>
+        </ul>
+        <h5>v0.2.11</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max 2024 Beta O384-63.3 release.
+            </li>
+        </ul>
+        <h5>v0.2.10</h5>
+        What's New:
+        <ul>
+            <li>
+                Improved viewport performance with topology changes in USD stage.
+            </li>
+            <li>
+                Fixed MAXScript not being able to toggle the castShadows parameter of a Photometric Light.
+            </li>
+        </ul>
+
+        <h5>v0.2.9</h5>
+        What's New:
+        <ul>
+            <li>
+                Added support for wireframe display.
+            </li>
+            <li>
+                USD Stage now supports computed primvars such as USDSkel.
+            </li>
+        </ul>
+
+        <h5>v0.2.8</h5>
+        What's New:
+        <ul>
+            <li>
+                Updated 2023 maxsdk dependency version to maxsdk-25.0.0-V951-62.0.
+            </li>
+        </ul>
+
+        <h5>v0.2.7</h5>
+        What's New:
+        <ul>
+            <li>
+                Add button to explitly reload layers instead of doing it everytime a stage is added.
+            </li>
+            <li>
+                Hit testing now properly sets up the hit depth, so that the closest object to the camera is prioritized.
+            </li>
+            <li>
+                Updating materials from python now works as expected. Better reuse material across meshes.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue with USDZ exports where dependency (bitmaps, etc.) paths were not correctly built.
+            </li>
+        </ul>
+
+        <h5>v0.2.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Added Basic Frustum Culling.
+            </li>
+            <li>
+                Updated to Python 3.9 and Boost 1.76 in 2023.
+            </li>
+        </ul>
+        <h5>v0.2.5</h5>
+        What's New:
+        <ul>
+            <li>
+                USD Stage Objects can now be exported as USD references.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+              Resizing columns in the USD Export dialog's custom UV mapping dialog now limits the amount of resetting possible so that the columns' header text can still be visible.
+            </li>
+            <li>
+              Fixed an issue when updating primvars via scripting on a USD Stage Object resulting in incorrect mapping.
+            </li>
+            <li>
+              Fixed an issue with vertex color animation not working as expected on the USD Stage Object.
+            </li>
+        </ul>
+
+        <h5>v0.2.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Update to USD 21.08 in USD plugins for 3ds Max 2021, 2022, and 2023.
+            </li>
+            <li>
+                Minimal support for rendering a USD Stage added as default fallback when renderers do not support accessing a USD stage directly.
+            </li>
+        </ul>
+        <h5>v0.2.3</h5>
+        What's New:
+        <ul>
+          <li>
+              USD Stage Node improvements : normals, UVs and UsdPreviewSurface materials are now properly represented in the viewport.
+          </li>
+          <li>
+              Improved performance and reliability of hit testing for the USD Stage Node.
+          </li>
+        </ul>
+        <h5>v0.2.2</h5>
+        What's New:
+        <ul>
+            <li>
+                USD Stage node added to beta build (For 3dsMax 2022, already present in 3dsMax 2023).
+            </li>
+        </ul>
+        <h5>v0.2.1</h5>
+        <ul>
+            <li>
+                Compatibility release for 3ds Max Beta V685-61.16 release.
+            </li>
+            </ul>
+        <h5>v0.2.0</h5>
+        Fixes:
+        <ul>
+            <li>
+                Added UI to configure mapped channels export to USD primvars.
+            </li>
+            <li>
+                Update labels and tooltips in the USD export UI.
+            </li>            
+            <li>
+                Disabled export of transparency maps, as there is no support in USD preview surface.
+            </li>
+        </ul>
+
+        <h5>v0.1.8</h5>
+        What's New:
+        <ul>
+            <li>
+                New MAXScript function USDImporter.ConvertUsdMesh() to convert a USD Mesh Prim to a TriMesh, using the stage cache.
+            </li>
+            <li>
+                Photometric Sun Positioner exports as a simple UsdLuxDistantLight (sun orientation + color and intensity).
+            </li>
+            <li>
+                Greatly reduce the export time of 3dsMax scenes containing many nodes.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fixed an issue with bad transforms when round-tripping 3dsMax scenes with instances (3dsMax -> Usd -> 3dsMax).
+            </li>
+        </ul>
+
+        <h5>v0.1.7</h5>
+        What's New:
+        <ul>
+            <li>
+                USD Importer has improved support for lights as Photometric Lights.
+            </li>
+            <li>
+                Exporting very large triangle mesh data is now as much as 50% faster than previously in some cases.
+            </li>
+        </ul>
+        <h5>v0.1.6</h5>
+        What's New:
+        <ul>
+            <li>
+                Export Shape objects to linear UsdGeomBasisCurves.
+            </li>
+        </ul>
+        <h5>v0.1.5</h5>
+        What's New:
+        <ul>
+            <li>
+                Added help context to USD Import and Export Dialogs.
+            </li>
+            <li>
+                USD Export options added to choose mesh format type to help speed up exports as well as give users control of whether their geometry should enforce polygon geometry or tris. Previously, all exports were done as Polygon which is slower in export time and performance in USD View. Exporting as tris exports faster and offers better viewport performance in USD View.
+            </li>
+            <li>
+                Photometric lights now export with all mappable properties into USD.
+            </li>
+            <li>
+                Update to USD 21.05 in USD plugins for 3ds Max 2021, 2022, and 2023.
+            </li>
+            <li>
+                Fixed broken sample/frame UI control.
+            </li>
+        </ul>
+        <h5>v0.1.4</h5>
+        What's New:
+        <ul>
+            <li>
+                Compatibility release for 3ds Max Beta V522-61.10 release
+            </li>
+        </ul>
+        <h5>v0.1.3</h5>
+        What's New:
+        <ul>
+            <li>
+                Python module PyOpenGL is now preinstalled to facilitate the use of the USDView tool (user must run the RunUsdView.bat script to benefit from this preinstall).
+            </li>
+            <li>
+                Added new option to open exported USD files in USD View after export.
+            </li>
+            <li>
+                USD exports bone objects to the non-renderable purpose (USDpurpose=guide).
+            </li>
+            <li>
+                USD Exporter now has an option to skip hidden geometry from export. There is also an option to assign USD Visibility to exported prims based on their visibility in the Max scene.
+            </li>
+        </ul>
+        <h5>v0.1.2</h5>
+        What's New:
+        <ul>
+            <li>
+                Transform and Vertex animations now supported in USD Exporter.
+            </li>
+            <li>
+                Added enhanced support for both physical and standard cameras in the importer.
+            </li>
+        </ul>
+        <h5>v0.1.1</h5>
+        What's New
+        <ul>
+            <li>The bitmap texture's Tile, Offset and W Angle information now imports and exports correctly.</li>
+            <li>Added enhanced support for both physical and standard cameras export.</li>
+            <li>Added enhanced support for USD camera import. Imports to physical cameras.</li>            
+        </ul>
+        <h5>v0.1.0</h5>
+        Fixes:
+        <ul>
+            <li>Bad USD Api call causes significant export slow down.</li>
+            <li>Undefined string metadata crash.</li>
+            <li>Metadata property names are case sensitive.</li>
+            <li>Suspend hold for import/export to avoid restore objects being created.</li>
+        </ul>
+        <h5>v0.0.28</h5>
+        What's New:
+        <ul>
+            <li>
+                An export option of RootPrimPath can be used to create a root scope for export.
+                <ul>
+                    <li>
+                        <code>USDExporter.RootPrimPath</code> = string (a valid USD prim path)
+                    </li>
+                    <li>
+                        Default is <code>"/"</code> - this is the USD default, the pseudo-root and the previous
+                        behavior.
+                    </li>
+                    <li>
+                        Specified root is defined as a scope unless <code>"/"</code>.
+                    </li>
+                </ul>
+            </li>
+            <li>
+                Pivots are conserved in all cases with World Space Modifiers.
+                <ul>
+                    <li>Inverse of node transform is baked into the geometry to bring points back into local space.</li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>Fixed import of normals and uvs for leftHanded geometry.</li>
+        </ul>
+        <h5>v0.0.27</h5>
+        What's New:
+        <ul>
+            <li>
+                All USD DLLs are prefixed by <code>3dsmax_</code> to prevent colliding with other plugins which may ship
+                with USD (i.e. Omniverse).
+            </li>
+            <li>
+                Textures can use any map channel for import and export.
+                <ul>
+                    <li>
+                        Primvar channel mapping is respected on import and export.
+                    </li>
+                </ul>
+            </li>
+            <li>
+                Relative paths are now used when exporting textures.
+            </li>
+        </ul>
+        Fixes
+        <ul><li>Installer ProductCode is unique for each MSI.</li></ul>
+        
+        <h5>v0.0.26</h5>                    
+        What's New:
+        <ul>
+            <li>
+                Added tooltips to import/export dialogs.
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>Prevent Python native types from generating log spam when comparing types.</li>
+            <li>Maxcript enum option validation.</li>
+            <li>Default prim should not use prototypes.</li>
+            <li>Fixes/Improvements for handling of world space modifiers on export.</li>
+            <li>Prims are not instanced if a single instance is exported.</li>
+            <li>Save import UI options.</li>
+            <li>Fixes for log spam with material imports</li>
+            <li>USD filename inside a USDZ file kept the same as the USDZ filename.</li>
+            <li>Instances with children not exporting to usd instances properly.</li>
+        </ul>
+        <h5>v0.0.25</h5>
+        What's New:
+        <ul>
+            <li>Added support for OSLBitmap and UberBitmap.osl bitmaps.
+                <ul>
+                    <li>By default, USDImporter now imports USDTextures as UberBitmap and channels are connected as
+                        specified in USD.</li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>USDExporter export frame can now be set to a negative number in export UI.</li>
+            <li>Installers are no longer signed with expired certificate.</li>
+            <li>Export Selected with instance resulting syntax error in USD file.</li>
+            <li>Export Selected could result in name conflicts.</li>
+            <li>Extra crease data properties are no longer created after import and re-export.</li>
+            <li>Material issues:</li>
+            <ul>
+                <li>Roughness is not properly set on export with physical materials when rougness_inv is true.</li>
+                <li>Cutout or opacity map is not mapped on exported in either physical material or VRay material.</li>
+                <li>Exporter is mapping bump maps to the normal input for UsdPreviewSurface.</li>
+            </ul>
+        </ul>
+        <h5>v0.0.24</h5>
+        <ul>
+            <li>
+                <p>Update to USD 21.02 in USD plugins for 3ds Max 2021, 2022 and 2023.</p>
+                <p>UsdMtlx library is available in USD plugin for 3ds Max 2021, 2022 and 2023 in
+                    Contents\plugin\usd\usdMtlx folder.</p>
+            </li>
+            <li>
+                The <code>#onExportComplete</code> and <code>#onImportComplete</code> callbacks have been updated to
+                include the import/export options and the usd filename:
+
+                <ul>
+                    <li>
+                        Maxscript:
+                        <ul>
+                            <li><code>func myCallback &lt;int&gt;stageId &lt;struct&gt;conversionInfo &lt;string&gt;usd_filename &lt;IUSDImportOptions or IUSDExportOptions&gt;options</code>
+                            </li>
+                        </ul>
+                    </li>
+                    <li>
+                        Python:
+                        <ul>
+                            <li><code>def myCallback(stageId, conversionInfo, usdFile, options)</code></li>
+                        </ul>
+                    </li>
+                </ul>
+            </li>
+            <li>
+                <p>Added the `creator` metadata as a customLayerData to exported USD files</p>
+                <ul>
+                    <li>Example:</li>
+                    <code>
+                        customLayerData = {<BR/>
+                        string creator = "USD for 3dsMax: v0.0.24 Beta"<BR/>
+                        }<BR/>
+                    </code>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                <p>Removed an error message dialog when cancelling import.</p>
+            </li>
+            <li>
+                <p>Fixed an issue where object pivots were not properly imported.</p>
+            </li>
+        </ul>
+        <h5>v0.0.23</h5>
+        What's New:
+        <ul>
+            <li>
+                <p>Import and Export UI has been updated, exposing missing options.</p>
+            </li>
+            <li>
+                <p>Material import can be enabled/disabled through UI.</p>
+                <p>Material boolean option added to Import/Export options struct.</p>
+            </li>
+            <li>
+                <p>Export time option added to UI and ExportOptions struct:</p>
+                <p>TimeMode = #current exports from the current time code</p>
+                <p>TimeMode = #explicit exports from the time frame specified by .TimeFrame.</p>
+                <p>TimeMode only allows #explicit or #current and not other values (like a random integer or #name)</p>
+                <p>If a non-default (non zero) value is set for TimeFrame, and #current is used, a warning is written to
+                    the log.</p>
+            </li>
+        </ul>
+        <h5>v0.0.22</h5>
+        What's New:
+        <ul>
+            <li>
+                <code>InferMainUvPrimvar</code> option no longer exists, it is replaced by
+                <code>.ImportUnmappedPrimvars</code>
+                <ul>
+                    <li>
+                        If <code>false</code>, only primvars with an explicit mapping are imported.
+                    </li>
+                    <li>
+                        If <code>true</code> :
+                        <ul>
+                            <li>
+                                Channel 1 (main UV) is filled with a primvar of type (prioritized in this order) :
+                                <ul>
+                                    <li>
+                                        <code>TexCoord2fArray</code>
+                                    </li>
+                                    <li>
+                                        <code>TexCoord2dArray</code>
+                                    </li>
+                                    <li>
+                                        <code>TexCoord2hArray</code>
+                                    </li>
+                                    <li>
+                                        <code>TexCoord3fArray</code>
+                                    </li>
+                                    <li>
+                                        <code>TexCoord3dArray</code>
+                                    </li>
+                                    <li>
+                                        <code>TexCoord3hArray</code>
+                                    </li>
+                                    <li>
+                                        <code>Float2Array</code>
+                                    </li>
+                                    <li>
+                                        <code>Double2Array</code>
+                                    </li>
+                                    <li>
+                                        <code>Half2Array</code>
+                                    </li>
+                                </ul>
+                            </li>
+                            <li>
+                                Channel 0 (VertexColor) if filled with a primvar of type (in this order):
+                                <ul>
+                                    <li>
+                                        <code>Color3fArray</code>
+                                    </li>
+                                    <li>
+                                        <code>Color3dArray</code>
+                                    </li>
+                                    <li>
+                                        <code>Color3hArray</code>
+                                    </li>
+                                </ul>
+                            </li>
+                            <li>
+                                <em>All other</em> unmapped (and still unused) primvars of dimension &lt;= 3 are
+                                imported to <em>unused</em> channels 2+.
+                                <ul>
+                                    <li>For example, if channels 2, 4, 6 are already used by explicit mappings, unmapped
+                                        primvars that are not the main UV or VertexColor are imported to 3,5,7,etc.
+                                        TexCoord types are imported to lower channels.</li>
+                            </li>
+                        </ul>
+                    </li>
+                </ul>
+            </li>
+        </ul>
+        </li>
+        <li>
+            Space warp is now supported when exporting to USD.
+        </li>
+        <li>
+            Expose Log interface
+            <ul>
+                <li>Added <code>Log</code> command to <code>USDExporter</code> and <code>USDImporter</code> to log
+                    errors/warnings/info to USD log for import and export during callbacks.</li>
+                <li>Usage:
+                    <p><code>USDExport.Log #info|#warn|#error msg</code><br />
+                        <code>USDImport.Log #info|#warn|#error msg</code></p>
+                </li>
+            </ul>
+        </li>
+        <li>USDStage node now exposes <code>CacheId</code></li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>USD instances round-trip without creating unwanted nodes.</li>
+        </ul>
+        <br />
+        <h5>v0.0.21</h5>
+        What's New:
+            <ul>
+                <li>Export Normals options
+                    <ul>
+                        <li><code>USDExporter.UIoptions.Normals = #primvar|#attribute|#none</code></li>
+                        <li>When set to attribute, normals are exported as attribute instead of primvar. If #none, no normals exported.</li>
+                    </ul>
+                </li>
+            </ul>
+        Fixes:
+        <ul>
+            <li>Fixed a crash when passing <code>undefined</code> to <code>SetPrimvarChannelMapping</code></li>
+            <li>Fixed a performance issue when importing large usd scenes in 2021.3 and above.</li>
+            <ul>
+                <li>Too frequent updates to max's status bar during import was causing huge slowdown in import time</li>
+            </ul>
+        </ul>
+
+        <h5>v0.0.20</h5>
+        What's New:
+            <ul>
+                <li>
+                    <p>TimeCode now can be <code>#startTime</code>, <code>#endTime</code> or <code>#explicit</code>.</p>
+                    <ul>
+                        <li>
+                            <p>Default if importing at <code>#startTime</code> for both UI and script - they should now behave the same, drag and drop as well, as long as options are not touched with scripting.</p>
+                        </li>
+                        <li>
+                            <p>Using <code>#explicit</code> without specifying a value for <code>TimeCodeValue</code> fails with an error.</p>
+                        </li>
+                        <li>
+                            <p>If <code>#explicit</code>, time value (the old <code>.TimeCode</code>) is specified via <code>.TimeCodeValue</code></p>
+                        </li>
+                        <li>
+                            <p>Using <code>#startTime</code> or <code>#endTime</code> with a value specified for TimeCodeValue logs a warning in the log (#warn level).</p>
+                        </li>
+                        <li>
+                            <p>The actual time code used for import is always logged as an info (#info).</p>
+                        </li>
+                    </ul>
+                </li>
+                <li>
+                    <p>Users can now import from a USD stage cache by providing the stageCacheId</p>
+                    <ul>
+                        <li>
+                            Maxscript:<br>
+                            <code>
+                                pyUsd = python.import("pxr.Usd")<br>
+                                pyUsdUtils = python.import("pxr.UsdUtils")<br>
+                                local stage = pyUsd.Stage.Open(@"C:\Kitchen_set.usd")<br>
+                                local stageCache = pyUsdUtils.StageCache.Get()<br>
+                                stageCache.Insert(stage)<br>
+                                local stageId = (stageCache.GetId(stage)).ToLongInt()<br>
+                                local importOptions = USDImporter.CreateOptions()<br>
+                                USDImporter.ImportFromCache stageId importOptions:importOptions<br>
+                            </code>
+                    </li>
+                    <li>
+                        Python:<br>
+                        <code>
+                                from pxr import Usd, UsdUtils<br>
+                                from pymxs import runtime as RT<br>
+                                stage = Usd.Stage.Open(r"C:\Kitchen_set.usd")<br>
+                                stageCache = UsdUtils.StageCache.Get()<br>
+                                stageCache.Insert(stage)<br>
+                                stageId = stageCache.GetId(stage).ToLongInt()<br>
+                                option = RT.USDImporter.CreateOptions()<br>
+                                RT.USDImporter.ImportFromCache(stageId, importOptions=option)<br>
+                            </code>
+                    </li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                <p>USD import no longer changes 3ds Max viewport quality settings.</p>
+            </li>
+            <li>
+                <p>Shader and Material prim will no longer create point helper node on import.</p>
+            </li>
+            <li>
+                <p>Fixed a crash when import USD scene on non-English 3ds Max.</p>
+            </li>
+        </ul>
+        <h5>v0.0.19</h5>
+        What's New:
+            <ul>
+                <li>All known USD files import with their UV data set intact, such that uv#, uv_#, st# and st_# are handled by default.</li>
+                <li>The main uv channel is inferred if <code>.InferMainUvPrimvar</code> is set to true. It is not otherwise.</li>
+                <li><code>texCoord2f</code> and <code>texCoord3f</code> primvar types are prioritized when inferring the main UV primvar. Float and double array primvars can also be used as UVs if found.</li>
+                <li>When the main UV channel is inferred and not explicitly mapped, an info message is logged.</li>
+                <li>Visibility is now correctly computed on import.</li>
+            </ul>
+        <h5>v0.0.18</h5>
+        Fixes:
+        <ul>
+            <li>Fix crash with animated topology in USD Stage.</li>
+            <li>Fix opacity threshold when round-tripping materials.</li>
+            <li>Fix multi-material binding on instanced prims.</li>
+            <li>Fix export of xref materials.</li>
+        </ul>
+        <h5>v0.0.17</h5>
+        What's New:
+        <ul>
+            <li>Export texture paths as absolute paths until relative paths can be properly supported.</li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Disable point helper cross display on import.
+            </li>
+        </ul>
+        <h5>v0.0.16</h5>
+        What's New:
+        <ul>
+            <li>Update to USD 20.11.</li>
+            <li>Use point helpers instead of dummies for groups and empty transforms.</li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>Fixes for round-tripping material Ids.</li>
+            <li>Fix crash when exporting usd without specifying extension.</li>
+            <li>Fix naming and visibility issues when importing usd with instances.</li>
+        </ul>
+        <h5>v0.0.15</h5>
+        What's New:
+        <ul>
+            <li>
+                USD Exporter will convert VRayMtl to USDPreviewSurface on export.
+            </li>
+            <li>Importing USD scenes with instanced prims create instances in Max where possible.</li>
+            <li>Users can import USD files with custom options without affecting the UI options.</li>
+            Import command:
+            <ul>
+                <li>
+                    <code>
+                        local importOptions = USDImporter.CreateOptions()<br>                        
+                        USDImporter.ImportFile importPath importOptions:importOptions
+                    </code>
+                </li>
+            </ul>
+
+            You can also change values of the UI config by assigning it a new one like this:
+            <ul>
+                <li>
+                    <code>
+                        USDImporter.UIOptions = importOptions             
+                    </code>
+                </li>
+            </ul>
+            <li><code>USDExport.fileExport</code> can export a list of scene nodes without requiring selection.</li>
+            <ul>
+                <li>
+                    Example:
+                    <code>USDExporter.ExportFile exportPath exportOptions:options contentSource:#nodeList nodeList:nodes</code>
+                </li>
+                <li>
+                    If <code>exportOption</code> is <code>undefined</code>, default export options are used
+                </li>
+                <li>If <code>contentSource</code> is <code>undefined</code>, we are exporting from the root node</li>
+                <li>If <code>contentSource</code> is set to <code>#selected</code>, we are exporting from the selected
+                    nodes only like before</li>
+                <li>If <code>contentSource</code> is set to <code>#nodeList</code>, the command needs an extra argument
+                    <code>nodeList</code> to be defined which will behave like the selected option, but without changing
+                    the scene selection.</li>
+            </ul>
+            <li>USD exports quads to triangles when vertices are non-coplanar when
+                <code>Preserve Edge Orientation</code> is
+                enabled.</li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Material IDs are now correctly exported with their appropriate materials.
+            </li>
+            <li>Fix for round-tripping opacityThreshold</li>
+        </ul>
+        <h5>v0.0.14</h5>
+        What's New:
+        <ul>
+            <li>
+                Added a new experimental <code>USD Stage</code> node for 3ds Max 2022 and higher. Use this node to
+                reference USD scenes in a 3ds Max scene.<br>
+                Known issues :
+                <ul>
+                    <li>All normals are computed smooth normals.</li>
+                    <li>Animated topology may cause crashes.</li>
+                    <li>No support for skeletal animations / computed geometry & primvars.</li>
+                    <li>No Frustum culling.</li>
+                    <li>No consolidation within render nodes (affects viewport performance).</li>
+                    <li>No UVS / materials.</li>
+                    <li>No Wireframe viewport support</li>
+                    <li>No rendering support</li>
+                </ul>
+            </li>
+            <li>
+                Added new <code>USDPreviewSurface</code> scripted interface for Physical Material. This provides a
+                1-to-1 implementation of <code>USDPreviewSurface</code> to simplify interop with USD.<br>
+                <code>USDPreviewSurface</code> is the default material used for importing USD scenes with materials.
+                <ul>Known issues:
+                    <li>Export from <code>PBRSpecGloss</code> does not set <code>UseSpecularWorkflow</code> to true for
+                        <code>UsdPreviewSurface</code>.</li>
+                    <li>Not fully compatible with 3ds Max 2018.</li>
+                    <li>Imports in 2019 fail to add textures.</li>
+                </ul>
+
+            </li>
+            <li>
+                USDZ added as an export option.
+            </li>
+            <li>
+                Added Maxscript export API to export without affecting global state.
+                <ul>
+                    <li>
+                        Added <code>USDExporter.ExportFile exportPath exportOptions:exportOptions</code> maxscript
+                        command
+                        which has an optional argument for export options.
+                    </li>
+                    <li>
+                        To create a new export options object: <code>exportOptions = USDExporter.CreateOptions()</code>
+                    </li>
+                    <li>
+                        If not specified, default export options are used. Default options are NOT the same as UI export
+                        options.
+                    </li>
+                    <li>
+                        UI export options are accessible: <code>uiExportOptions = USDExporter.UIOptions</code>
+                    </li>
+                    <li>
+                        Export options example:
+                        <ul>
+                            <code>
+                                uiExportOptions.Meshes = false<br>
+                                uiExportOptions.Lights = false<br>
+                                uiExportOptions.Cameras = false<br>
+                                uiExportOptions.FileFormat = #ascii<br>
+                                uiExportOptions.UpAxis = #y<br>
+                                uiExportOptions.LogLevel = #info<br>
+                                uiExportOptions.LogPath = ("somepath/log_path.txt")<br>
+                                uiExportOptions.SetChannelPrimvarMapping 1 undefined<br>
+                                uiExportOptions.RegisterCallback testCallback1 #testCallback #onExportComplete<br>
+                            </code>
+                        </ul>
+
+                    </li>
+                </ul>
+            </li>
+            <li>
+                <p>USD version has been updated to <code>20.08</code>.</p>
+            </li>
+        </ul>
+        <h5>v0.0.13</h5>
+        What's New:
+        <ul>
+            <li>
+                A batch script (RunUsdTool.bat) to run usd tools is now installed in bin folder to make using USD Tools
+                with Max Python easier.
+                <ul>
+                    Usage: <code>RunUsdTool {usd_tool} {options}</options></usdtool></code><br>
+                    For example: <code>RunUsdTool UsdView MyFile.usd</code>
+                    <li>
+                        Usdcat/Usdzip work out-of-box for 3dsMax 2018-2022.
+                    </li>
+                    <li>Usdview should work for 3dsMax 2021+ after following on-screen instructions/warnings to resolve
+                        missing dependencies if any.
+                    </li>
+                </ul>
+            </li>
+            <li>
+                Material import/export enabled via post import/export scripts.
+                <ul>
+                    <li>Material conversion is customizable by editing JSON config files and placing in user folders.
+                    </li>
+                    <li>Default settings convert <code>USDPreviewSurface</code> materials conversion to
+                        PBRMetalRoughness materials.</li>
+                </ul>
+            </li>
+        </ul>
+        <h5>v0.0.12</h5>
+        What's new
+        <ul>
+            <li>
+                USD Python Toolset is now included in the plugin package. See <a
+                    href="https://graphics.pixar.com/usd/docs/USD-Toolset.html">USD Toolset documentation</a> page for
+                more info on
+                usage.
+                <div class="alert alert-warning rounded-0" role="alert">
+                    <strong>Note:</strong> These tools require PATH changes to function as well as some Python modules
+                    to be pip-installed.
+
+                </div>
+                <p>Windows <code>PATH</code> should contain
+                    <code>&lt;install_path_to_max_usd_plugin&gt;\Contents\bin</code></p>
+
+                <p><code>PYTHONPATH</code> should contain
+                    <code>&lt;install_path_to_max_usd_plugin&gt;\Contents\bin\python</code></p>
+            </li>
+            <li>
+                Crease data is now supported for Import/Export with USD.
+            </li>
+        </ul>
+        <ul>
+            <li>
+                Hidden objects in Max scene are exported with <code>visibility=invisible</code> in USD. Invisible prims
+                are hidden on import.
+            </li>
+        </ul>
+        <h5>v0.0.11</h5>
+        What's New:
+        <ul>
+            <li>
+                Added command to disable/filter metadata being imported via maxscript interface:
+                <ul>
+                    <li><code>USDImporter.Metadata = #(#kind, #hidden, #purpose)</code></li>
+                    <li>Defines the metadatas that are imported.</.i>
+                </ul>
+            <li>
+                Fixed import time performance with metadata.
+                <div class="alert alert-warning rounded-0" role="alert">
+                    <strong>Note:</strong> It is recommended to disable the MacroRecorder during import. When importing
+                    many nodes with metadata, USDImporter can output a large amount of MacroRecorder text which affects
+                    performance.
+                </div>
+            </li>
+            </li>
+            <li>
+                Transform offset is no longer exported to a child prim.
+            </li>
+        </ul>
+        <h5>v0.0.10</h5>
+        What's New:
+        <ul>
+            <li>
+                Added maxscript callbacks for <code>UsdExporter</code>/<code>UsdImporter</code> :
+                <code>#onImportComplete</code>
+                and <code>#onExportComplete</code>.
+                <p>
+                    These callbacks are triggered before closing or writing the USD stage to disk, and are passed the
+                    Usd
+                    <code>stageId</code>.
+                <p>
+                    This allows a scripter to make additional imports/exports, such as special-case metadata handling,
+                    custom
+                    classes, etc.
+                <p>
+                    The Usd stage can be accessed during export and import time by <code>stageId</code>:
+                    <br>
+                <p style="background-color:whitesmoke">
+                    <code>
+                cache = UsdUtils.StageCache.Get()<br>
+                stage = cache.Find(Usd.StageCache.Id.FromLongInt(stageId))<br>
+                </code>
+                </p>
+                <p>The following functions are identical for <code>UsdExporter</code> and <code>UsdImporter</code>:</p>
+                <ul>
+                    <li>
+                        <code>RegisterCallback &lt;value&gt;callback &lt;value&gt;id &lt;enum&gt;event</code>
+                        <ul>
+                            <li>
+                                USDExporter event enums: <code>#onExportComplete</code>
+                            </li>
+                            <li>
+                                USDImporter event enums: <code>#onImportComplete</code>
+                            </li>
+                        </ul>
+                    </li>
+                    <li>
+                        <code>UnregisterCallbacks id:&lt;value&gt; event:&lt;enum&gt;</code>
+                        <ul>
+                            <li>
+                                If <code>id</code> not specified then all callback ids are unregistered.
+                            </li>
+                            <li>
+                                If <code>event</code> not specified, callbacks are unregistered for all event types.
+                                <ul>
+                                    <li>
+                                        USDExporter event enums: <code>#onExportComplete</code>
+                                    </li>
+                                    <li>
+                                        USDImporter event enums: <code>#onImportComplete</code>
+                                    </li>
+                                </ul>
+                            </li>
+                        </ul>
+                    </li>
+                    <li>
+                        <code>GetCallbacks()</code>
+                        <ul>
+                            <li>
+                                Returns a dictionary to access all the registered callbacks.
+                            </li>
+                            <li>
+                                The key is the callback type (for now only the <code>#onImportComplete</code> or
+                                <code>#onExportComplete</code>, and the value is another dictionary of callback IDs
+                                (Name type)
+                                to callback functions.
+                            </li>
+                            <li>
+                                For example :
+                            </li>
+                        </ul>
+                    </li>
+                </ul>
+                <p style="background-color:whitesmoke">
+                    <code>USDExporter.RegisterCallback convertMaterials #someId #onExportComplete</code><br>
+                    <code>print (USDExporter.GetCallbacks())</code><br>
+                    <code>-&gt; (DataPair key:#onExportComplete value:Dictionary #name someId:convertMaterials() )</code><br>
+                </p>
+                The <code>#onExportComplete</code> and <code>#onImportComplete</code> callbacks should have the
+                following
+                signature:
+                <ul>
+                    <li>
+                        Maxscript:
+                        <ul>
+                            <li><code>func myCallback &lt;int&gt;stageId &lt;struct&gt;conversionInfo</code></li>
+                        </ul>
+                    </li>
+                    <li>
+                        Python:
+                        <ul>
+                            <li><code>def myCallback(stageId, conversionInfo)</code></li>
+                        </ul>
+                    </li>
+                </ul>
+                The <code>conversionInfo</code> struct is of the form:
+                <p style="background-color:whitesmoke">
+                    <code>struct conversionInfo(</code><br>
+                    <code><code>&nbsp;&nbsp;&nbsp;&nbsp;&lt;dictionary&gt; primsToNodes (</code><br>
+                    <code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;#('prim/Path':&lt;INode&gt;)</code><br>
+                    <code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;...</code><br>
+                    <code>&nbsp;&nbsp;&nbsp;&nbsp;)</code><br>
+                    <code>)</code><br>
+                    </code>
+                </p>
+            </li>
+            <li>
+                USDImport now adds standard USD metadata fields as custom attributes. These custom attributes export to
+                USD when
+                found on exported nodes:
+                <ul>
+                    <li>
+                        hidden as <code>usd_hidden</code>
+                    </li>
+                    <li>
+                        kind as <code>usd_kind</code>
+                    </li>
+                    <li>
+                        purpose as <code>usd_purpose</code>
+                    </li>
+                </ul>
+            </li>
+            <li>
+                By default, vertex colors (channel 0) are mapped to <code>primvar:vertexColor</code> (a generic primvar)
+                instead of
+                <code>primvar:displayColor</code> (well known usd primvar).
+                <ul>
+                    <li>
+                        Output the wire color to <code>primvar:displayColor</code>, which matches the intent of that
+                        primvar
+                        (fast display).
+                    </li>
+                    <li>
+                        Change the import mappings accordingly to recognize vertexColor on import as well / set
+                        wireColor from
+                        displayColor. If not a constant primvar (i.e. different colors per vertex), use the first value.
+                    </li>
+                    <li>
+                        All of this can still be overridden with the current system for configuring mappings, i.e.
+                        should only
+                        export <code>wireColor</code> to <code>displayColor</code> if no explicit mapping is set for
+                        displayColor.
+                        Same for import. User can always explicitly import the values to a channel if needed via script.
+                    </li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Vertices that don't belong to any faces are removed upon import.
+            </li>
+        </ul>
+        <h5>v0.0.9</h5>
+        What's New:
+        <ul>
+            <li>
+                Mesh materialIds are imported and exported as <code>GeomSubset</code> prims. MultiSub material slot
+                names are used if possible, otherwise the materialId is converted to a string: <code>_1_</code>,
+                <code>_2_</code>, etc.
+            </li>
+            <li>
+                Meshes now import as EditablePoly instead of PolyMesh
+            </li>
+            <li>
+                USDImport now adds standard USD metadata fields as custom attributes. These custom attributes export to
+                USD when found on exported nodes:
+                <ul>
+                    <li>hidden as <code>usd_hidden</code></li>
+                    <li>kind as <code>usd_kind</code></li>
+                    <li>purpose as <code>usd_purpose</code></li>
+                </ul>
+            </li>
+            <li>
+                Added Logging support
+                <ul>
+                    <li>
+                        Logging is disabled by default, and no log file is created.
+                    </li>
+                    <li>
+                        Log path can be specified (import/export) with
+                        <code>USDImporter.LogPath</code>/<code>USDExporter.LogPath</code> - default to Max temp folder
+                    </li>
+                    <li>
+                        Log level can be specified with
+                        <code>USDImporter.LogLevel</code>/<code>USDExporter.LogLevel</code> - default <code>#off</code>
+                        <ul>
+                            <li>
+                                <code>#info</code> -&gt; All is logged.
+                            </li>
+                            <li>
+                                <code>#warn</code> -&gt; Only warnings and errors are logged.
+                            </li>
+                            <li>
+                                <code>#error</code> -&gt; Only errors are logged.
+                            </li>
+                            <li>
+                                <code>#off</code> -&gt; Logging disabled.
+                            </li>
+                        </ul>
+                    </li>
+                    <li>
+                        Logging is set to 5 rotating files with a 200mb max size.
+                    </li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>Objects imported from Y-Up scenes were facing the wrong direction. They are now rotated correctly.</li>
+            <li>UsdImport was creating "standard" materials for each mesh. Import now only sets wireColor - no materials are created.</li>
+        </ul>
+        <h5>v0.0.8</h5>
+        What's New:
+        <ul>
+            <li>Added mappings from USD Primvars to 3ds Max mapped channels on import:
+                <ul>
+                    <li><code>primvars:displayColor</code> to Channel 0/Vertex color.</li>
+                    <li><code>primvars:st</code> or <code>primvars:map1</code> to the main UV channel.</li>
+                    <li><code>primvars:mapN</code> to channel N, up to 99.</li>
+                    <li><code>primvars:mapShading</code> to the shading channel (MAP_SHADING, -1)</li>
+                    <li><code>primvars:displayOpacity</code> to the alpha channel (MAP_ALPHA, -2)</li>
+                </ul>
+                All primvar to channel mappings are configurable via Maxscript. It should be possible to import any USD
+                primvar to any 3ds Max channel - as long as the primvar’s data type is compatible.
+            </li>
+            <li>
+                Support for upAxis in USD:
+                <ul>
+                    <li>3ds Max only support z-up axis. Therefore if y-up axis is used on import or export, 3ds Max will
+                        automatically convert the up-axis.</li>
+                    <li>On export, if y-up axis is specified, the conversion from z-up to y-up will be saved inside the
+                        root prims transform matrix.</li>
+                    <li>On import, if the USD stage is set up with y-up axis, the axis conversion will be automatically
+                        done to z-up axis.</li>
+                </ul>
+            </li>
+        </ul>
+        <h5>v0.0.7</h5>
+        What's New:
+        <ul>
+            <li>
+                For 3ds Max 2021 and newer, USD python bindings are provided for Python3.
+            </li>
+            <li>
+                DefaultPrim is now set on export to the first valid prim.
+            </li>
+            <li>
+                Added default map channels export defaults:
+                <ul>
+                    <li>
+                        Vertex color exports by default to <code>primvars:displayColor</code>.
+                    </li>
+                    <li>
+                        Vertex alphas export by default to <code>primvars:displayOpacity</code>.
+                    </li>
+                    <li>
+                        UVs are exported to <code>primvars:map1</code> to <code>primvars:map99</code>.
+                    </li>
+                    <li>
+                        Shading map <code>-1</code> is exported to <code>primvars:mapShading</code>.
+                    </li>
+                </ul>
+            </li>
+            <li>
+                <p></p>The following interfaces have been added to <code>USDExporter</code>:</p>
+                <p style="background-color:whitesmoke">
+                    <code>&lt;void&gt;<strong>SetChannelPrimvarMappingDefaults()</strong></code></p>
+                <p>Reset mapping to default.</p>
+                <p>Default mapping is as follows, with <code>autoExpandType</code> set to <code>true</code>:</p>
+                <ul>
+                    <li>
+                        Vertex color (<code>0</code>) exports by default to <code>primvars:displayColor</code> as
+                        <code>#color3fArray</code>.
+                    </li>
+                    <li>
+                        UVs (<code>1-99</code>) are exported to <code>primvars:map1</code> to
+                        <code>primvars:map99</code> as <code>#textCoord2fArray</code>.
+                    </li>
+                    <li>
+                        Vertex alphas (<code>-2</code>) export by default to <code>primvars:displayOpacity</code> as
+                        <code>#floatArray</code>.
+                    </li>
+                    <li>
+                        Shading map values (<code>-1</code>) are exported to <code>primvars:mapShading</code> as
+                        <code>#color3fArray</code>.</p>
+                    </li>
+                </ul>
+                <p style="background-color:whitesmoke">
+                    <code>&lt;void&gt;<strong>SetChannelPrimvarMapping</strong> &lt;integer&gt;<strong>channel</strong> &lt;value&gt;<strong>targetPrimvar</strong> <strong>type:</strong>&lt;enum&gt; <strong>autoExpandType</strong></strong>:&lt;boolean&gt;</code>
+                </p>
+                <ul>
+                    <li>
+                        <code>type</code> enums:
+                        <code>#texCoord2fArray</code>, <code>#texCoord3fArray</code>, <code>#floatArray</code>,
+                        <code>#float2Array</code>, <code>#float3Array</code>, <code>#color3fArray</code>
+                    </li>
+                    <li>
+                        <code>type</code> default value: <code>#float3Array</code>
+                    </li>
+                    <li>
+                        <code>autoExpandType</code> default value: <code>true</code>
+                    </li>
+                </ul>
+                <p></p>Set the target <code>primvar</code> name and type per channel.</p>
+                <p>When <code>AutoExpandType</code> is true, type will expand depending on input values. For example, if
+                    <code>type</code> is <code>#textCoord2fArray</code> and the texture coordinate channel has non-zero
+                    values
+                    in <code>W</code>, then the type will expand to <code>#textCoord3fArray</code>.</p>
+                <p style="background-color:whitesmoke">
+                    <code>&lt;enum&gt; <strong>GetChannelPrimvarType</strong> &lt;integer&gt;<strong>channel</strong></code>
+                </p>
+                <ul>
+                    <li><code>GetChannelPrimvarType</code> enums:
+                        <code>#texCoord2fArray</code>, <code>#texCoord3fArray</code>, <code>#floatArray</code>,
+                        <code>#float2Array</code>, <code>#float3Array</code>, <code>#color3fArray</code></li>
+                    </p>
+                </ul>
+                <p>Returns channel primvar type.</p>
+                <p style="background-color:whitesmoke">
+                    <code>&lt;string&gt;<strong>GetChannelPrimvarName</strong> &lt;integer&gt;<strong>channel</strong></code>
+                </p>
+                <p>Returns channel primvar name.</p>
+                <p style="background-color:whitesmoke">
+                    <code>&lt;boolean&gt;<strong>GetChannelPrimvarAutoExpandType</strong> &lt;integer&gt;<strong>channel</strong></code>
+                </p>
+                <p>Returns channel primvar <code>autoExpandType</code> flag.</p>
+            </li>
+        </ul>
+        <h5>v0.0.6</h5>
+        What's New:
+        <ul>
+            <li>Added support for Export Selected and prim name conflict resolution.</li>
+            <ul>
+                <li>ONLY selected object are exported.</li>
+                <li>If the parent of a selected object is not itself selected, then it will be at the root level in USD.
+                    i.e. <code>/nodename</code></li>
+                <li>Children of selected objects are not exported</li>
+            </ul>
+            <li>Added support for <code>metersPerUnit</code> for import and export.</li>
+            <ul>
+                <li>On import we will scale to match the units currently set in max.</li>
+                <li>On export we export the units set in max to the MetersPerUnit attribute of the stage.</li>
+            </ul>
+            <li>Fix: Do not export or import invalid faces.</li>
+            <li>Fix: Clean up bad geometry produced by triMeshes with hidden edges on curved surfaces.</li>
+        </ul>
+        <h5>v0.0.5</h5>
+        What's New:
+        <ul>
+            <li>USD updated to v20.05</li>
+            <div class="alert alert-warning rounded-0" role="alert">
+                <strong>Note:</strong> Alembic is not enabled in this build of USD. Referencing Alembic in USD is not
+                yet supported.
+            </div>
+            <li>Maxscript Import options:
+                <ul>
+                    <li><code>USDImporter.TimeCode</code> : double (what time sample to import)
+                        <ul>
+                            <li>Read about TimeCode here: <a
+                                    href="http://graphics.pixar.com/usd/docs/api/class_usd_time_code.html#details">http://graphics.pixar.com/usd/docs/api/class_usd_time_code.html#details</a>
+                            </li>
+                            <li>Set to <code>undefined</code> for <code>UsdTimeCode::Default()</code></li>
+                        </ul>
+                    </li>
+                    <li><code>USDImporter.InitialLoadSet</code> : can be <code>#loadAll</code> VS <code>#loadNone</code>
+                        (whether to load payloads or not)</li>
+                    <li><code>USDImporter.StageMask</code> : Array of Strings (stage mask paths to use)</li>
+                    <li><code>USDImporter.SetDefaults()</code> -> Resets to these default options : </li>
+                    <ul>
+                        <li><code>TimeCode</code> = <code>undefined</code> </li>
+                        <li><code>InitialLoadSet</code> = <code>#loadAll</code></li>
+                        <li><code>StageMask</code> = <code>"/"</code> (imports everything)</li>
+                    </ul>
+                    <li>Options set via <code>USDImporter.XYZ</code> are not reflected in the UI, nor should they be
+                        affected by imports going through the UI.</li>
+                </ul>
+            </li>
+            <li>Export object Transforms:
+                <ul>
+                    <li><code>USDExporter.BakeObjectOffsetTransform</code> : Option to bake the object offset in the
+                        geometry.</li>
+                    <li>When not baking the transforms, only use the extra xform when necessary, i.e. the offset is not
+                        the identity matrix.</li>
+                    <li>Groups/helper object transforms are properly exported. When you filter out meshes for example,
+                        you really only filter out the meshes - not its hierarchy.</li>
+                </ul>
+            </li>
+        </ul>
+        Fixes:
+        <ul>
+            <li>
+                Fix unused vertices crash. Do not export or import invalid faces.
+            </li>
+        </ul>
+        <h5>v0.0.4 </h5>
+        What's New:
+        <ul>
+            <li>Adds maxscript exposure to the Export plugin - the same options as already in the UI.
+                <ul>
+                    <li>From script, not allowed to mismatch the extension VS the output format.</li>
+                    <li>UI / Global options state stay synchronised - only saved in memory so the max session.</li>
+                    <li>Changes made from the UI are only applied if the Import goes through (I.e. not if you cancel or
+                        close from the export window).</li>
+                </ul>
+            </li>
+            <li>Normals support - Default behavior is exporting normals if specified OR smoothing groups exist.</li>
+        </ul>
+        <h5>v0.0.3</h5>
+        What's New:
+        <ul>
+            <li>Added export of Photometric Lights to USD Lights, with a limited set of attributes. Supported
+                Photometric Light shapes include Point, Line, Rectangle, Disc, Sphere and Cylinder.</li>
+            <li>Added export of Standard Cameras to USD Cameras, with a limited set of attributes.</li>
+            <li>Added option to import USD content from a specific time code via a slider on the <em>Import</em> dialog.
+            </li>
+            <li>Added options to the <em>Export</em> dialog, allowing:
+                <ul>
+                    <li>Export of USD content in ASCII (USDA) or binary format (USDC).</li>
+                    <li>Selecting the up axis of the exported USD Stage.</li>
+                    <li>Export of meshes, lights and/or cameras.</li>
+                </ul>
+            </li>
+        </ul>
+        <h5>v0.0.2</h5>
+        What's New:
+        <ul>
+            <li>Support exporting USD content via the <em>File</em> &gt; <em>Export</em> &gt; <em>Export...</em> menu.
+            </li>
+            <li>Added some USD diagnostic information when displaying the USD import dialog. This should help
+                identifying potential issues when importing content &ndash; thanks for reporting any issues!</li>
+            <li>Added limited import of USD Light attributes. Supported attributes for <em>SphereLight</em>,
+                <em>RectLight</em>, <em>DiskLight</em> and <em>CylinderLight</em> include <code>color</code>,
+                <code>enableColorTemperature</code>, <code>colorTemperature</code>, <code>intensity</code>,
+                <code>shadow:enable</code>, <code>shadow:color</code>, <code>radius</code>, <code>width</code>,
+                <code>height</code>, <code>length</code> and <code>shaping:ies:file</code>.</li>
+            <li>Added limited import of USD Camera attributes. Supported attributes include <code>projection</code>,
+                <code>clippingRange</code>, <code>focalLength</code> and <code>horizontalAperture</code></li>
+        </ul>
+        <h5>v0.0.1</h5>
+        What's New:
+        <ul>
+            <li>Initial release! 🎉</li>
+            <li>Support importing USD content via the <em>File</em> &gt; <em>Import</em> &gt; <em>Import...</em> menu.
+            </li>
+        </ul>
+    </main>
+
+    <div class="container">
+        <footer class="pt-4 my-md-5 pt-md-5 border-top">
+            <div class="row">
+                <div class="col-12 col-md">
+                    <small class="d-block mb-3 text-muted">&copy; Autodesk Inc., 2020</small>
+                </div>
+            </div>
+        </footer>
+    </div>
+</body>
+
+</html>
diff --git a/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdChecker.bat b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdChecker.bat
new file mode 100644
index 0000000..a77eaf3
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdChecker.bat
@@ -0,0 +1,16 @@
+::
+:: Copyright 2023 Autodesk
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+CALL "%~dp0RunUsdTool" "%~dp0UsdChecker" %*
diff --git a/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdTool.bat b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdTool.bat
new file mode 100644
index 0000000..48f023a
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdTool.bat
@@ -0,0 +1,133 @@
+::
+:: Copyright 2023 Autodesk
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+@ECHO OFF
+REM Utility script to run USD tools from an installed 3dsMax USD plugin
+REM  This script tries to locate a usable python.exe and then runs the underlying USD tool
+REM  with the UsdToolWrapper.py (python wrapper script will properly set the PATH environment variable)
+
+REM Check passed arguments. If none, display help/usage.
+SET ARG_COUNT=0
+setlocal enabledelayedexpansion
+FOR %%x in (%*) DO (
+	SET "argVec[!ARG_COUNT!]=%%x"
+	SET /A ARG_COUNT+=1
+)
+setlocal disabledelayedexpansion
+
+IF %ARG_COUNT%==0 (
+	REM If no arguments are specified, output help / usage.
+	ECHO "USAGE:"
+	ECHO "RunUsdTool.bat <usd_tool> [--python-exe C:path/to/3dsmax/python.exe] <args...>"
+	ECHO "Ex : "
+	ECHO "RunUsdTool.bat usdview --python-exe "C:/Program Files/Autodesk/3ds Max 2023/python/python.exe" path_to_usd.usda"
+	ECHO "RunUsdTool.bat usdview path_to_usd.usda"
+	ECHO "RunUsdTool.bat usdcat -o output_path.usd --usdFormat usda path_tp_usdz_file.usdz"
+	EXIT /b
+)
+
+REM Clears the PATH to avoid any conflicts. Only keep what we know we need.
+SET PATH="C:\windows\system32"
+
+SETLOCAL
+
+PUSHD %~dp0
+SET SCRIPT_DIR="%CD%"
+POPD
+
+REM Detect the --python-exe switch, it allows to specify the python executable to be used. 
+REM Typically it should be the python exe matching the 3dsMax version for which
+REM the 3dsMax USD plugin was compiled.
+IF "%~2"=="--python-exe" (
+	goto PYTHON_ARG
+)
+
+REM Otherwise, try looking at registry keys to find the python executable.
+REM In this case, the USD tool's args start at %2.
+setlocal enabledelayedexpansion
+FOR /L %%i in (1,1,%ARG_COUNT%) do (
+	SET "ARGS=!ARGS!!argVec[%%i]!"
+)
+setlocal disabledelayedexpansion
+if not x%SCRIPT_DIR:2022=%==x%SCRIPT_DIR% goto MAX2022_REGISTRY
+if not x%SCRIPT_DIR:2023=%==x%SCRIPT_DIR% goto MAX2023_REGISTRY
+if not x%SCRIPT_DIR:2024=%==x%SCRIPT_DIR% goto MAX2024_REGISTRY
+if not x%SCRIPT_DIR:2025=%==x%SCRIPT_DIR% goto MAX2025_REGISTRY
+if not x%SCRIPT_DIR:2026=%==x%SCRIPT_DIR% goto MAX2026_REGISTRY
+REM Out of options...
+goto no_python
+
+:PYTHON_ARG
+SET PYTHON_EXE=%~3
+REM In this case, the USD tool's args start at %4.
+
+set ALL_ARGS=%*
+SET SKIPPED_ARGS=%1 %2 %3 
+SETLOCAL enabledelayedexpansion
+set ARGS=!ALL_ARGS:%SKIPPED_ARGS%=!
+SETLOCAL DisableDelayedExpansion 
+goto run_python_exe
+
+:MAX2022_REGISTRY
+FOR /F "tokens=2,* skip=2" %%a in ('reg query "HKLM\SOFTWARE\Autodesk\3dsMax\24.0" /V InstallDir') do (
+	SET MAX_DIR=%%b
+)
+SET PYTHON_EXE=%MAX_DIR%python37\python.exe
+goto run_python_exe
+
+:MAX2023_REGISTRY
+FOR /F "tokens=2,* skip=2" %%a in ('reg query "HKLM\SOFTWARE\Autodesk\3dsMax\25.0" /V InstallDir') do (
+	SET MAX_DIR=%%b
+)
+SET PYTHON_EXE=%MAX_DIR%Python\python.exe
+goto run_python_exe
+
+:MAX2024_REGISTRY
+FOR /F "tokens=2,* skip=2" %%a in ('reg query "HKLM\SOFTWARE\Autodesk\3dsMax\26.0" /V InstallDir') do (
+	SET MAX_DIR=%%b
+)
+SET PYTHON_EXE=%MAX_DIR%Python\python.exe
+goto run_python_exe
+
+:MAX2025_REGISTRY
+FOR /F "tokens=2,* skip=2" %%a in ('reg query "HKLM\SOFTWARE\Autodesk\3dsMax\27.0" /V InstallDir') do (
+	SET MAX_DIR=%%b
+)
+SET PYTHON_EXE=%MAX_DIR%Python\python.exe
+goto run_python_exe
+
+:MAX2026_REGISTRY
+FOR /F "tokens=2,* skip=2" %%a in ('reg query "HKLM\SOFTWARE\Autodesk\3dsMax\28.0" /V InstallDir') do (
+	SET MAX_DIR=%%b
+)
+SET PYTHON_EXE=%MAX_DIR%Python\python.exe
+goto run_python_exe
+
+:no_python
+	ECHO "Could not find max python based on registry or argument."
+	goto end
+)
+
+:run_python_exe
+PUSHD %SCRIPT_DIR%
+ECHO running %PYTHON_EXE% with args:%ARGS%
+
+REM "Reset" QTDIR env variable to avoid usdview QT crash occurring in dev environment
+set QTDIR=
+"%PYTHON_EXE%" UsdToolWrapper.py %1 %ARGS%
+
+:end
+ENDLOCAL
+POPD
diff --git a/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdView.bat b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdView.bat
new file mode 100644
index 0000000..ab48428
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdView.bat
@@ -0,0 +1,16 @@
+::
+:: Copyright 2023 Autodesk
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+CALL "%~dp0RunUsdTool" "%~dp0UsdView" %*
diff --git a/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdZip.bat b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdZip.bat
new file mode 100644
index 0000000..002859f
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/bin/RunUsdZip.bat
@@ -0,0 +1,16 @@
+::
+:: Copyright 2023 Autodesk
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+CALL "%~dp0RunUsdTool" "%~dp0UsdZip" %*
diff --git a/src/ApplicationPlugins/usd-component/Contents/bin/UsdToolWrapper.py b/src/ApplicationPlugins/usd-component/Contents/bin/UsdToolWrapper.py
new file mode 100644
index 0000000..9e7a84d
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/bin/UsdToolWrapper.py
@@ -0,0 +1,161 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+'''
+This file is simply a wrapper to handle setting the windows PATH to locate USD binaries 
+and python bindings. It also does some basic verifications such as handling missing PyOpenGL
+dependency.
+Written to work in an installed 3dsMax USD Plugin context or a standalone zip structure.
+'''
+from __future__ import print_function
+import sys, os
+
+scriptPath = os.path.dirname(os.path.realpath(__file__))
+
+def getUsdPythonBindingsPath():
+	usdPythonPath = os.path.join(scriptPath, "python")
+	testPaths = [usdPythonPath, os.path.join(scriptPath, "lib", "python")]
+	for tp in testPaths:
+		if os.path.exists(tp):
+			usdPythonPath = tp
+			break
+	return usdPythonPath
+	
+def getUsdBinPath():
+	usdBinPath = scriptPath
+	if not os.path.exists(os.path.join(usdBinPath, "3dsmax_usd.dll")):
+		usdBinPath = os.path.join(scriptPath, "bin")
+	return usdBinPath
+
+def getUsdLibPath():
+	usdLibPath = None
+	if os.path.exists(os.path.join(scriptPath, "lib")):
+		usdLibPath = os.path.join(scriptPath, "lib")
+	elif os.path.exists(scriptPath + r"\..\lib"):
+		usdLibPath = scriptPath + r"\..\lib"
+	return usdLibPath
+
+def getMtlxLibPath():
+	mtlxLibPath = scriptPath + r"\..\libraries"
+	return mtlxLibPath
+
+def addUsdToolPythonBindingsToPythonPath():
+	usdToolPythonPath = os.path.join(scriptPath, "python-usd-tool-packages")
+	if os.path.exists(usdToolPythonPath):
+		if not usdToolPythonPath in sys.path:
+			sys.path.insert(0, usdToolPythonPath)
+
+def addUsdPythonBindingsToPythonPath():
+	usdPythonPath = getUsdPythonBindingsPath()
+	# pre-pending to avoid override issues due to PYTHONPATH being set
+	# only for standalone. if using installed max python3, PYTHONPATH is
+	# not taken into account as the python.exe was overwritten with a 
+	# custom version in 2021+
+	if not usdPythonPath in sys.path:
+		sys.path.insert(0, usdPythonPath)
+
+def addUsdBinariesToWindowsPath():
+	usdBinPath = getUsdBinPath()
+	usdLibPath = getUsdLibPath()
+	sysPath = os.environ["PATH"]
+	sysPath = usdBinPath + ";" + sysPath
+	if usdLibPath is not None:
+		sysPath = usdLibPath + ";" + sysPath
+	os.environ["PATH"] = sysPath
+
+def addMtlxLibToPath():
+	usdMtlXLibPath = getMtlxLibPath()
+	from pxr import Usd
+	ver = Usd.GetVersion()
+	mtlxLibEnvVarName = None
+	if ver == (0,21,11): # Only version we support with the older env var name
+		mtlxLibEnvVarName = 'PXR_USDMTLX_STDLIB_SEARCH_PATHS'
+	else:
+		mtlxLibEnvVarName = 'PXR_MTLX_STDLIB_SEARCH_PATHS'
+	# Get the current value of the environment variable, or set it to a default value (empty)
+	env_var_value = os.getenv(mtlxLibEnvVarName, '')
+	env_var_value = usdMtlXLibPath + os.pathsep + env_var_value
+	os.environ[mtlxLibEnvVarName] = env_var_value
+
+def validateUsdViewRequirements():
+	status = True
+	if sys.version_info.major == 3 and sys.version_info.minor == 11:
+		try:
+			import PySide6
+		except ImportError:
+			print("WARN: PySide6 is not installed, USDView will not work. You can install pip and PySide6 with the scripts below:")
+			print('"{}" -m ensurepip --upgrade --user'.format(sys.executable))
+			print('"{}" -m pip install --user PySide6==6.5.3'.format(sys.executable))
+			status = False
+	else:
+		try:
+			import PySide2
+		except ImportError:
+			print("WARN: PySide2 is not installed, USDView will not work. You can install pip and PySide2 with the scripts below:")
+			print('"{}" -m ensurepip --upgrade --user'.format(sys.executable))
+			print('"{}" -m pip install --user PySide2==5.15.1'.format(sys.executable))
+			status = False
+
+	try:
+		import OpenGL
+	except ImportError:
+		print("WARN: PyOpenGL is not installed, USDView will not work. You can install pip and PyOpenGL with the scripts below:")
+		print('"{}" -m ensurepip --upgrade --user'.format(sys.executable))
+		print('"{}" -m pip install --user PyOpenGL==3.1.5'.format(sys.executable))
+		status = False
+	
+	return status
+
+
+if __name__ == "__main__":
+	if len(sys.argv) < 2:
+		# NOTE: can build a UI here with pyside2 instead of cli usage
+		print("ERROR: Incorrect arguments set, first argument should be name of usd tool such as `usdcat`")
+		exit()
+
+	# make sure usd python bindings path is in `sys.path`
+	addUsdPythonBindingsToPythonPath()
+	addUsdToolPythonBindingsToPythonPath()
+
+	# make sure usd binaries are searchable in windows PATH
+	addUsdBinariesToWindowsPath()
+
+	# make sure MtlX Libraries are searchable for USD
+	addMtlxLibToPath()
+
+	# check if PyOpenGL is installed (only for py3+ and usdview)
+	if not sys.version_info.major == 2:
+		if not validateUsdViewRequirements() and sys.argv[1] == "usdview":
+			print("ERROR: missing required dependencies for running usdview")
+			exit()
+
+	if sys.version_info.major == 3 and sys.version_info.minor == 9 and sys.version_info.micro >= 7:
+		os.add_dll_directory(os.path.dirname(os.path.dirname(sys.executable)))
+
+	cmd = sys.argv[1]
+	newArgs = sys.argv[1: len(sys.argv)]
+	sys.argv = newArgs
+
+	filename = cmd
+	if not os.path.exists(filename):
+		filename = "./bin/" + cmd
+
+	import runpy
+	try:
+		runpy.run_path(filename, run_name='__main__')
+	except ImportError:
+		print("The 'PATH' environment variable contains a conflicting path with the 3ds Max USD component binaries.\nReversing the 'PATH' order and trying a second time to launch '{0}'.".format(filename))
+		os.environ["PATH"] = ';'.join(reversed(os.getenv('PATH', '').split(os.pathsep)))
+		runpy.run_path(filename, run_name='__main__')
diff --git a/src/ApplicationPlugins/usd-component/Contents/cui/usdMenu.mnx b/src/ApplicationPlugins/usd-component/Contents/cui/usdMenu.mnx
new file mode 100644
index 0000000..0ca29d6
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/cui/usdMenu.mnx
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<MaxMenuTransformations>
+    <!-- Add menu entry to create a stage object from the reference menu.-->
+    <CreateMenuAction MenuId="200b07d2-fa91-4479-8adc-24c7dae1c307" Id="be0d0fc0-a7ca-4853-8e01-0729c3c3c75a" ActionId="647394-CreateUSDStage`USD"/>
+    <!-- Add USD submenu under Tools.-->
+    <CreateMenuSeparator MenuId="88e2fb4c-3e71-4401-a601-7cc61cbb0358" Id="9ae9049b-d8ba-4e74-898f-52ee394cb379"/>
+    <CreateMenu ParentId="88e2fb4c-3e71-4401-a601-7cc61cbb0358" MenuId="63afe2a3-5e5b-47e7-8b20-dfb1dcf8bf5d" Title="USD"/>
+    <CreateMenuAction MenuId="63afe2a3-5e5b-47e7-8b20-dfb1dcf8bf5d" Id="576c623b-ea72-4aea-ac75-f788de6a2ad7" ActionId="647394-OpenUsdExplorer`USD"/>
+</MaxMenuTransformations>
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.mcr.res b/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.mcr.res
new file mode 100644
index 0000000..0cb03ac
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.mcr.res
@@ -0,0 +1,4 @@
+USD_STAGE_MENU_ITEM   =   "USD Stage..."
+USD_STAGE_TOOLTIP = "Create a USD Stage from File"
+USD_EXPLORER_MENU_ITEM   =   "USD Explorer..."
+USD_EXPLORER_TOOLTIP = "Opens the USD Explorer"
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.ms.res b/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.ms.res
new file mode 100644
index 0000000..3f5fd45
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/en-US/registerMenu.ms.res
@@ -0,0 +1,5 @@
+USD_STAGE_MENU_ITEM   =   "USD Stage..."
+FILE_MENU_MAIN   =   "&File"
+REFERENCE_MENU_ITEM   =   "&Reference"
+USD_EXPLORER_MENU_ITEM   =   "USD Explorer..."
+TOOLS_MENU_ITEM   =   "&Tools"
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/USDMaterialAttributeHolder.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/USDMaterialAttributeHolder.ms
new file mode 100644
index 0000000..2e09873
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/USDMaterialAttributeHolder.ms
@@ -0,0 +1,94 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+global UsdMaterialAttributeHolder = attributes UsdMaterialAttributeHolder
+version:1
+attribID:#(0x37a5e0e8, 0x723f032d)
+(
+	function replaceUnicode val = 
+	(
+		local updatedStr = ""
+		for i = 1 to val.count do
+		(
+			local char = val[i]
+			if bit.charAsInt char > 127 then
+			(
+				updatedStr += "_"
+			)
+			else 
+			(
+				updatedStr += char
+			)
+		)
+		updatedStr
+	)
+	
+	local enableFunc, UsdAttributes, enableLayerPath, validatePrimPath
+	parameters USD rollout:UsdAttributes
+	(
+		pathMethod type:#integer default:1 ui:rdo_buttons
+		primPath type:#string default:"mtl" ui:edt_primPath
+		separateLayer type:#boolean default:false ui:ckb_separateLayer
+		filePath type:#string ui:edt_filePath
+
+		on pathMethod set val do 
+		(
+			if enableFunc != undefined then enableFunc()
+		)
+		on separateLayer set val do 
+		(
+			if enableLayerPath != undefined then enableLayerPath()
+		)
+		on filePath set val do 
+		(
+			if val != undefined then 
+			(
+				filePath = replaceUnicode val
+			)
+		)
+	)
+	
+	rollout UsdAttributes "USD Export Options" autoLayoutOnResize:true 
+	(
+		radiobuttons rdo_buttons "" labels:#("Use defaults defined in the USD Exporter", "Specify New Path") default:1 columns:1
+		editText edt_primPath "Scope" enabled:(pathMethod != 1) tooltip:"The path in the USD hierarchy where this prim will reside."
+		checkbox ckb_separateLayer "Separate USD Layer" enabled:(pathMethod != 1) tooltip:"Enable to have materials export to a separate USD file at the File Path specified. When disabled, used the value defined in the USD Exporter."
+		editText edt_filePath "File Path" enabled:(pathMethod !=1) tooltip:"The path to the file where the material is going to be exported."
+		
+		on UsdAttributes open do 
+		(
+			enableFunc()
+		)
+
+		on edt_filePath entered val do
+		(
+			edt_filePath.text = replaceUnicode val
+		)
+	)
+	
+	
+	function enableFunc = 
+	(
+		UsdAttributes.edt_primPath.enabled = (pathMethod != 1)
+		UsdAttributes.ckb_separateLayer.enabled = (pathMethod != 1)
+		UsdAttributes.edt_filePath.enabled = ((pathMethod != 1) and separateLayer)
+	)
+
+	function enableLayerPath = 
+	(
+		UsdAttributes.edt_filePath.enabled = separateLayer
+	)
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdMaterialAttributeMacro.mcr b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdMaterialAttributeMacro.mcr
new file mode 100644
index 0000000..1b098a7
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdMaterialAttributeMacro.mcr
@@ -0,0 +1,29 @@
+macroScript AddUSDCustomAttrToMaterialSelection category:"USD" buttonText:"Add USD Cust Attr to Selected Materials" tooltip:"Add USD Cust Attr to Selected Materials"
+(
+	usdHolder = USDMaterialAttributeHolder
+	if sme.IsOpen() do
+	(
+		v = sme.GetView sme.activeView
+		selectedNode = v.GetSelectedNodes()
+		for n = 1 to selectedNode.count do
+		(
+			m = selectedNode[n].reference
+			if (superClassOf m) == material then
+			(
+				custAttributes.add m usdHolder
+			)
+		)
+	)
+)
+
+macroScript AddUSDCustomAttrToObjectSelection category:"USD" buttonText:"Add USD Cust Attr to Selected objects" tooltip:"Add USD Cust Attr to Selected objects"
+(
+	usdHolder = USDMaterialAttributeHolder
+	for n = 1 to selection.count do
+	(
+		if selection[n].material != undefined do
+		(
+			custAttributes.add selection[n].material usdHolder
+		)
+	)
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdPreviewSurface.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdPreviewSurface.ms
new file mode 100644
index 0000000..21dadd0
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/UsdPreviewSurface.ms
@@ -0,0 +1,522 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+-- A scripted implementation of a USD Preview Surface
+-- You are free to modify this file to make derivative versions to match your workflow/engine.
+-- Remember to change the ClassID if you do...
+--    https://github.com/ADN-DevTech/3dsMax-OSL-Shaders/blob/master/LICENSE.txt
+
+plugin material MaxUsdPreviewSurface
+name:"USD Preview Surface"
+classID:#(0x6afa4933, 0x4787f1c7)
+category:"Materials\USD"
+extends:PhysicalMaterial replaceUI:true version:2019.1215
+(
+    local params
+    local settings
+    
+    local _opacityThresholdFloatOp
+    local _opacityThresholdMapOp
+    
+    fn setGamma1 map =
+    (
+        if (classof map == bitmapTex) do
+        (
+            -- Accessing .bitmap of a missing map yeilds an exception
+            try (
+                if (map.bitmap != undefined) do
+                (
+                    if (map.bitmap.gamma != 1.0) do
+                    (
+                        local gamma1bmp = undefined
+                        local version = maxversion()
+                        if version[1] >= 26000 then (  -- 3ds Max 2024 and up, require color space.
+                            gamma1bmp = openBitmap map.bitmap.filename gamma:1.0 colorspace:ColorPipelineMgr.DataColorSpace
+                        )
+                        else (
+                            gamma1bmp = openBitmap map.bitmap.filename gamma:1.0
+                        )                        
+                        if (gamma1bmp != undefined) do (
+                            USDImporter.SetTexmapParamByName map "bitmap" gamma1bmp
+                        )
+                    )
+                )
+            )
+            catch() -- do-nothing catch
+        )
+        if (classOf map == OSLMap) do
+        (
+            if (hasProperty map "autoGamma") do (
+                USDImporter.SetTexmapParamByName map "autogamma" false
+            )
+
+            if (hasProperty map "manualGamma") do (
+                USDImporter.SetTexmapParamByName map "manualGamma" 1.0
+            )
+            
+            -- Set any parameter ending in "_ColorSpace" to "" (Raw)
+            local props = getPropNames map
+            for prop in props do if ((findString (prop as string) "_ColorSpace") != undefined) do setProperty map (prop as string) ""
+        )
+        if (classOf map == MultiOutputChannelTexmapToTexmap) do
+        (
+            setGamma1(map.sourceMap)
+        )
+    )
+    
+    -- Returns the opacity threshold operation OSL node. If it does not exist yet, it is created.
+    -- This custom OSL node implements UsdPreviewSurface's "opacityThreshold" for scalar values.
+    -- It has two imputs, opacity and threshold. If the threshold is non-zero, it will either output 
+    -- a final opacity of 0.0 or 1.0, depending on whether the input opacity exceeds the threshold or not.
+    -- If the threshold is zero, the input opacity is returned as is.
+    fn getOpacityThresholdFloatOpNode = (
+        if (_opacityThresholdFloatOp == undefined) do (
+            local code =
+            "shader OpacityThresholdFloat
+            (
+                float Opacity = 0.0 ,
+                float Threshold = 0.0,
+                output float Out = 0.0,
+            )
+            {
+                Out = Threshold > 0.0 ? (Opacity >= Threshold ? 1.0 : 0.0) : Opacity;
+            }
+            "
+            _opacityThresholdFloatOp = OSLmap()
+            USDImporter.SetTexmapParamByName _opacityThresholdFloatOp "OSLCode" code
+            USDImporter.SetTexmapParamByName _opacityThresholdFloatOp "OSLAutoUpdate" True
+            
+            USDImporter.SetTexmapParamByName _opacityThresholdFloatOp "Opacity" 1.0
+            USDImporter.SetTexmapParamByName _opacityThresholdFloatOp "Threshold" 0.0
+        )
+        return _opacityThresholdFloatOp
+    )
+    
+    -- Similar implemenation as getOpacityThresholdFloatOpNode for map values. The RGB intensity is used to
+    -- compare against the threshold.
+    fn getOpacityThresholdMapOpNode = (
+        if (_opacityThresholdMapOp == undefined) do (
+            local codeOpacityThresholdMap =
+            "shader OpacityThresholdMap
+            (
+                color Opacity = 0.0,
+                float Threshold = 0.0,
+                output color Out = 0.0,
+            )
+            {
+                float intensity = (Opacity[0] + Opacity[1] + Opacity[2]) / 3;
+                Out = Threshold > 0.0 ? (intensity >= Threshold ? 1.0 : 0.0) : Opacity;
+            }
+            "
+            _opacityThresholdMapOp = OSLmap()
+            USDImporter.SetTexmapParamByName _opacityThresholdMapOp "OSLCode" codeOpacityThresholdMap
+            USDImporter.SetTexmapParamByName _opacityThresholdMapOp "OSLAutoUpdate" True
+        )
+        return _opacityThresholdMapOp
+    )
+    
+    fn specGlossToPhysMap init:false = (
+        if not (init) and (delegate.roughness_map != undefined) do
+        (
+            -- if not intializing return existing map
+            if (delegate.roughness_map.sourceMap != undefined) do
+                return delegate.roughness_map.sourceMap
+        )
+        local code =
+        "shader SpecGlossToPhysical
+        (
+            color        In     = 0.02,
+            float        Gloss  = 1.0,
+            float        AO     = 1.0,
+            int          Invert = 1,
+            output float Reflectivity = 0.0,
+            output color ReflColor = 0.0,
+            output float Roughness = 0.0
+        )
+        {
+            Roughness = Invert?1.0 - Gloss:Gloss;
+
+            Reflectivity = max(max(In[0],In[1]),In[2]);
+            if (Reflectivity > 0.0)
+                ReflColor = In / Reflectivity;
+
+            float fres   = pow(1-abs(dot(I, N)),5.0) * (1.0-Roughness);
+            Reflectivity = mix(Reflectivity, 1.0, fres);
+            ReflColor    = mix(ReflColor, 1.0, fres) * AO;
+        }"
+
+        local tm = OSLmap()
+        tm.OSLCode = code
+
+        local mul = MultiOutputChannelTexmapToTexmap()
+        USDImporter.SetTexmapParamByName mul "sourceMap" tm
+        USDImporter.SetTexmapParamByName mul "outputChannelIndex" 1
+        USDImporter.SetMaterialParamByName delegate "reflectivity_map" mul
+
+        mul = MultiOutputChannelTexmapToTexmap()
+        USDImporter.SetTexmapParamByName mul "sourceMap" tm
+        USDImporter.SetTexmapParamByName mul "outputChannelIndex" 2
+        USDImporter.SetMaterialParamByName delegate "refl_color_map" mul
+
+        mul = MultiOutputChannelTexmapToTexmap()
+        USDImporter.SetTexmapParamByName mul "sourceMap" tm
+        USDImporter.SetTexmapParamByName mul "outputChannelIndex" 3
+        USDImporter.SetMaterialParamByName delegate "roughness_map" mul
+        return tm
+    )
+
+    parameters settings rollout:settings
+    (
+        ao_affects_diffuse     type:#boolean ui:aoDiffuse default:true
+        ao_affects_reflection type:#boolean ui:aoReflect default:true
+        normal_flip_red         type:#boolean ui:normFlipR default:false
+        normal_flip_green      type:#boolean ui:normFlipG default:false
+    )
+
+
+    parameters main rollout:params
+    (
+        useSpecularWorkflow type:#boolean default:false
+        diffuseColor type:#frgba default:[0.18,0.18,0.18,1.0] ui:cpCol
+        diffuseColor_map type:#TextureMap ui:mapBaseColor localizedname:"Diffuse Color Map"
+        metallic type:#float default:0.0 ui:spnmetallic
+        metallic_map type:#TextureMap ui:mapMetallic localizedname:"Metallic Map"
+        specularColor type:#frgba default:[0.0,0.0,0.0,1.0] ui:cpSpecular
+        specularColor_map type:#TextureMap ui:mapSpecular localizedname:"Specular Map"
+        roughness type:#float default:0.5 ui:spnRoughness
+        roughness_map type:#TextureMap ui:mapRoughness localizedname:"Roughness Map"
+        occlusion type:#float default:1.0 ui:spnOcclusion
+        occlusion_map type:#TextureMap ui:mapAmbientOcclusion localizedname:"Occlusion Map"
+        normal type:#frgba default:[0.0,0.0,1.0,1.0] ui:cpNormal
+        bump_map_amt type:#float default:1.0 ui:spnBumpAmount 
+        normal_map type:#TextureMap ui:mapNormal localizedname:"Normal Map"
+        emissiveColor type:#frgba default:black ui:cpEmCol
+        emissiveColor_map type:#TextureMap ui:mapEmitColor localizedName:"Emissive Color Map"
+
+        opacity type:#float ui:spnOpacity default:1.0
+        opacity_map type:#TextureMap ui:mapOpacity localizedname:"Opacity Map"
+        opacityThreshold type:#float ui:spnOpacityThreshold default:0.0
+
+        displacement type:#float default:0.0 ui:spnDispAmount
+        displacement_map type:#TextureMap ui:mapDisplace localizedname:"Displacement Map"
+
+        ior type:#float ui:spnIor default:1.5
+        ior_map type:#TextureMap ui:mapIor localizedname:"IOR Map"
+        clearcoat type:#float ui:spnClearcoat default:0.0
+        clearcoat_map type:#TextureMap ui:mapClearcoat localizedname:"Clearcoat Map"
+        clearcoatRoughness type:#float ui:spnClearcoatRoughness default:0.01
+        clearcoatRoughness_map type:#TextureMap ui:mapClearcoatRoughness localizedname:"Clearcoat Roughness Map"
+
+        on useSpecularWorkflow set val do (
+            if val == true then (
+                local x = specGlossToPhysMap init:True
+                USDImporter.SetTexmapParamByName x "In" specularColor
+                USDImporter.SetTexmapParamByName x "In_map" specularColor_map
+                if (ao_affects_reflection) then
+                    USDImporter.SetTexmapParamByName x "AO_map" occlusion_map
+                else
+                    USDImporter.SetTexmapParamByName x "AO_map" undefined
+                USDImporter.SetMaterialParamByName delegate "metalness" 0.0
+                USDImporter.SetMaterialParamByName delegate "trans_ior" 50.0
+                USDImporter.SetTexmapParamByName x "Gloss_map" roughness_map
+                USDImporter.SetTexmapParamByName x "Gloss" roughness
+                USDImporter.SetTexmapParamByName x "Invert" False
+            ) else (
+                USDImporter.SetMaterialParamByName delegate "metalness" metallic
+                USDImporter.SetMaterialParamByName delegate "trans_ior" ior
+                USDImporter.SetMaterialParamByName delegate "roughness_map" roughness_map
+                USDImporter.SetMaterialParamByName delegate "refl_color_map" undefined
+                if (ao_affects_reflection) then
+                    USDImporter.SetMaterialParamByName delegate "reflectivity_map" occlusion_map
+                else
+                    USDImporter.SetMaterialParamByName delegate "reflectivity_map" undefined
+            )
+        )
+        on diffuseColor set val do (USDImporter.SetMaterialParamByName delegate "base_color" val)
+        on diffuseColor_map set val do (USDImporter.SetMaterialParamByName delegate "base_color_map" val)
+        on specularColor set val do (
+            if useSpecularWorkflow do (
+                local x = specGlossToPhysMap()
+                USDImporter.SetTexmapParamByName x "In" val
+            )
+        )
+        on specularColor_map set val do (
+            if useSpecularWorkflow do (
+                local x = specGlossToPhysMap()
+                USDImporter.SetTexmapParamByName x "In_map" val
+            )
+        )
+
+        on metallic set val do USDImporter.SetMaterialParamByName delegate "metalness" val
+        on metallic_map set val do (
+            setGamma1(val)
+            USDImporter.SetMaterialParamByName delegate "metalness_map" val
+        )
+        on roughness set val do (
+            if useSpecularWorkflow then (
+                local x = specGlossToPhysMap()
+                USDImporter.SetTexmapParamByName x "Gloss" val
+                USDImporter.SetTexmapParamByName x "Invert" False
+            ) else (
+                USDImporter.SetMaterialParamByName delegate "roughness" val
+            )
+        )
+
+        on roughness_map set val do (
+            setGamma1(val)
+            if useSpecularWorkflow then (
+                local x = specGlossToPhysMap()
+                USDImporter.SetTexmapParamByName x "Gloss_map" val
+            ) else (
+                USDImporter.SetMaterialParamByName delegate "roughness_Map" val
+            )
+        )
+
+        on occlusion_map set val do (
+            setGamma1(val)
+
+            if (ao_affects_diffuse) then
+                USDImporter.SetMaterialParamByName delegate "base_weight_map" val
+            else
+                USDImporter.SetMaterialParamByName delegate "base_weight_map" undefined
+
+            if useSpecularWorkflow then (
+                local x = specGlossToPhysMap()
+
+                if (ao_affects_reflection) then
+                    USDImporter.SetTexmapParamByName x "AO_map" val
+                else
+                    USDImporter.SetTexmapParamByName x "AO_map" undefined
+            ) else (
+                if (ao_affects_reflection) then
+                    USDImporter.SetMaterialParamByName delegate "reflectivity_map" val
+                else
+                    USDImporter.SetMaterialParamByName delegate "reflectivity_map" undefined
+            )
+        )
+        on opacityThreshold set val do (
+            -- Set the threshold value in both the float and map threshold op nodes.
+            local opacityThresholdFloatOp = getOpacityThresholdFloatOpNode()
+            USDImporter.SetTexmapParamByName opacityThresholdFloatOp "Threshold" val
+            
+            local opacityThresholdMapOp = getOpacityThresholdMapOpNode()
+            USDImporter.SetTexmapParamByName opacityThresholdMapOp "Threshold" val        
+            
+        )
+        
+        on opacity set val do (
+            local opacityThresholdFloatOp = getOpacityThresholdFloatOpNode()
+            -- If the value is not fully opaque, and if still have nothing connected in the cutout_map, 
+            -- connect our custom osl node, which will forward the correct opacity to the delegate, given 
+            -- the current opacity threshold.
+            if (val < 1.0) then (
+                if (delegate.cutout_map == undefined) then (
+                    USDImporter.SetMaterialParamByName delegate "cutout_map" opacityThresholdFloatOp
+                )
+            )
+            -- Fully opaque, remove the cutout_map entirely if the opacity value is what is being used currently.
+            else (
+                if (delegate.cutout_map == opacityThresholdFloatOp) do (
+                    USDImporter.SetMaterialParamByName delegate "cutout_map" undefined
+                )
+            )
+            -- Set the opacity value in the OSL node.
+            USDImporter.SetTexmapParamByName opacityThresholdFloatOp "Opacity" val
+        )
+        on opacity_map set val do (
+            if (val != undefined) do (
+                setGamma1(val)
+            )
+            
+            
+            -- Connected a new map...
+            if (val != undefined) then (
+                -- Setup the custom OSL node to take into account the opacityThreshold, and set it as 
+                -- the opacity map for the delegate.
+                local opacityThresholdMapOp = getOpacityThresholdMapOpNode()
+                opacityThresholdMapOp.Opacity_map = val
+                USDImporter.SetMaterialParamByName delegate "cutout_map" opacityThresholdMapOp
+            -- Disconnected 
+            ) else (
+                -- If we currently have a non fully opaque value for the opacity, connect the float opacity threshold
+                -- op node. It's opacity/threshold input will already be correct.
+                if (opacity < 1.0) then (
+                    local opacityThresholdFloatOp = getOpacityThresholdFloatOpNode()
+                    USDImporter.SetMaterialParamByName delegate "cutout_map" opacityThresholdFloatOp
+                )
+                -- Otherwise, disconnect the opacity map in the delegate.
+                else (
+                    USDImporter.SetMaterialParamByName delegate "cutout_map" undefined
+                )
+            )
+        )
+        
+        on displacement_map set val do (
+            setGamma1(val)
+            USDImporter.SetMaterialParamByName delegate "displacement_map" val
+            USDImporter.SetMaterialParamByName delegate "displacement_map_amt" 1.0
+        )
+
+        on displacement set val do USDImporter.SetMaterialParamByName delegate "displacement_map_amt" val
+        on bump_map_amt set val do delegate.bump_map_amt = val
+        on normal_map set val do (
+            if (val != undefined) then (
+                setGamma1(val)
+                local bm = Gnormal()
+                USDImporter.SetTexmapParamByName bm "normal_map" val
+                USDImporter.SetTexmapParamByName bm "flipred" normal_flip_red
+                USDImporter.SetTexmapParamByName bm "flipgreen" normal_flip_green
+                USDImporter.SetMaterialParamByName delegate "bump_map" bm
+            )
+            else
+            (
+                USDImporter.SetMaterialParamByName delegate "bump_map" undefined
+            )
+        )
+        on emissiveColor set val do (USDImporter.SetMaterialParamByName delegate "emit_color" val)
+        on emissiveColor_map set val do (USDImporter.SetMaterialParamByName delegate "emit_color_map" val)
+        on ior set val do (
+            if not useSpecularWorkflow do (
+                USDImporter.SetMaterialParamByName delegate "trans_ior" val
+            )
+        )
+        on ior_map set val do (
+            if not useSpecularWorkflow do (
+                USDImporter.SetMaterialParamByName delegate "trans_ior_map" val
+            )
+        )
+        on clearcoat set val do (
+            USDImporter.SetMaterialParamByName delegate "coating" val
+        )
+        on clearcoat_map set val do (
+            USDImporter.SetMaterialParamByName delegate "coat_map" val
+        )
+        on clearcoatRoughness set val do (
+            USDImporter.SetMaterialParamByName delegate "coat_roughness" val
+        )
+        on clearcoatRoughness_map set val do (
+            USDImporter.SetMaterialParamByName delegate "coat_rough_map" val
+        )
+
+    )
+
+    rollout params "USD Preview Surface Parameters"
+    (
+        group "Material Parameters" (
+            label lblWorkflow "Workflow:" across:2
+            radiobuttons rdoWorkflow labels:#("Metallic", "Specular") default:1 align:#left
+
+            colorpicker cpCol "Diffuse Color" color:white across:2 fieldWidth:45 offset:[-45,6] align:#right
+            mapbutton mapBaseColor "" align:#right width:190 offset:[-5,5]
+
+            spinner spnmetallic "Metallic" range:[0.0,1.0,0.0] scale:0.01 across:2 fieldWidth:35 offset:[-45,5] align:#right
+            mapbutton mapMetallic "" align:#right width:190 offset:[-5,2]
+
+            colorpicker cpSpecular "Specular Color" color:white across:2 fieldWidth:45 offset:[-45,3] align:#right
+            mapbutton mapSpecular "" align:#right width:190 offset:[-5,2]
+
+            spinner spnRoughness "Roughness" range:[0.0,1.0,0.0] scale:0.01 across:2 fieldWidth:35 offset:[-45,5] align:#right
+            mapbutton mapRoughness "" align:#right width:190 offset:[-5,2]
+
+            spinner spnOcclusion "Occlusion" range:[0.0,1.0,0.0] scale:0.01 across:2 fieldWidth:35 offset:[-45,5] align:#right
+            mapbutton mapAmbientOcclusion "" align:#right width:190 offset:[-5,2]
+            
+            colorpicker cpNormal "Normal" color:blue across:2 fieldWidth:45 offset:[-45,3] align:#right
+            mapbutton mapNormal "" align:#right width:190 offset:[-5,2]
+            
+            spinner spnBumpAmount "Amount" range:[-5.0,5.0,1.0] scale:0.01 fieldwidth:35 offset:[-45,5] align:#right
+
+            colorpicker cpEmCol "Emissive Color" color:black across:2 fieldWidth:45 offset:[-45,3] align:#right
+            mapbutton mapEmitColor "" align:#right width:190 offset:[-5,2]
+
+            spinner spnDispAmount "Displacement" range:[0.0,999.0,1.0] scale:0.01 fieldwidth:35 across:2 offset:[-45,5] align:#right
+            mapbutton mapDisplace "" align:#right width:190 offset:[-5,2]
+
+            spinner spnOpacity "Opacity" range:[0.0,1.0,0.0] scale:0.01 fieldwidth:35 across:2 offset:[-45,5] align:#right
+            mapbutton mapOpacity "" align:#right width:190 offset:[-5,2]
+
+            spinner spnOpacityThreshold "Opacity Threshold" range:[0.0,1.0,0.1] scale:0.01 fieldwidth:35 offset:[-45,5] align:#right
+
+            spinner spnIor "IOR" range:[0.0, 999.0, 1.0] scale:0.01 fieldwidth:35 offset:[-45,5] align:#right across:2
+            mapbutton mapIor "" align:#right width:190 offset:[-5,2]
+
+            spinner spnClearcoat "Clearcoat" range:[0.0,999.0,1.0] scale:0.01 fieldwidth:35 across:2 offset:[-45,5] align:#right
+            mapbutton mapClearcoat "" align:#right width:190 offset:[-5,2]
+
+            spinner spnClearcoatRoughness "CC Roughness" range:[0.0,999.0,1.0] scale:0.01 fieldwidth:35 across:2 offset:[-45,5] align:#right
+            mapbutton mapClearcoatRoughness "" align:#right width:190 offset:[-5,2]
+        )
+        on params open do
+        (
+            params.setUIText()
+        )
+
+        fn setUIText =
+        (
+            if useSpecularWorkflow then
+            (
+                params.rdoWorkflow.state = 2
+                params.spnmetallic.enabled = false
+                params.cpSpecular.enabled = true
+            )
+            else
+            (
+                params.rdoWorkflow.state = 1
+                params.spnmetallic.enabled = true
+                params.cpSpecular.enabled = false
+            )
+        )
+
+
+        on rdoWorkflow changed state do
+        (
+            useSpecularWorkflow = (state == 2)
+            params.setUIText()
+        )
+
+    )
+
+    rollout settings "Settings"
+    (
+        checkbox aoDiffuse "AO affects Diffuse" offset:[20,0] across:2
+        checkBox normFlipR "Normal Flip Red" align:#left
+        checkbox aoReflect "AO affects Reflection" offset:[20,0] across:2
+        checkBox normFlipG "Normal Flip Green" align:#left
+        label lblSpc "" height:2
+
+        on aoDiffuse changed state do occlusion_map = occlusion_map
+        on aoReflect changed state do occlusion_map = occlusion_map
+        on normFlipR changed state do normal_map = normal_map
+        on normFlipG changed state do normal_map = normal_map
+    )
+
+    on create do
+    (
+        USDImporter.SetMaterialParamByName delegate "base_color" white
+        USDImporter.SetMaterialParamByName delegate "metalness" 0.0
+        USDImporter.SetMaterialParamByName delegate "roughness" 0.5
+        USDImporter.SetMaterialParamByName delegate "bump_map_amt" 1.0
+        USDImporter.SetMaterialParamByName delegate "roughness_inv" false
+        USDImporter.SetMaterialParamByName delegate "reflectivity" 1.0
+        USDImporter.SetMaterialParamByName delegate "emit_color" black
+        USDImporter.SetMaterialParamByName delegate "emit_color_map_on" true
+        USDImporter.SetMaterialParamByName delegate "trans_ior" 1.5
+        USDImporter.SetMaterialParamByName delegate "refl_color_map" undefined
+        USDImporter.SetMaterialParamByName delegate "displacement_map_amt" 1.0
+
+        custAttributes.add this USDMaterialAttributeHolder
+    )
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/3dsmax_materials.mat_def b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/3dsmax_materials.mat_def
new file mode 100644
index 0000000..6de6988
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/3dsmax_materials.mat_def
@@ -0,0 +1,131 @@
+
+{
+    "3dsmax_physical_material": {
+        "id": "PhysicalMaterial",
+        "max_class_id": [
+            1030429932,
+            3735928833
+        ],
+        "domain": "3dsmax",
+        "inputs": {
+            "Base_Color": "color",
+            "base_color_map": "texturemap",
+            "base_color_map_on": "use_map",
+            "roughness": "float",
+            "roughness_map": "texturemap",
+            "roughness_map_on": "use_map",
+            "metalness": "float",
+            "metalness_map": "texturemap",
+            "metalness_map_on": "use_map",
+            "bump_map": "texturemap",
+            "bump_map_on": "use_map",
+            "ao_map": "texturemap",
+            "transparency": "float",
+            "transparency_map": "texturemap",
+            "transparency_map_on": "use_map",
+            "cutout_map":"texturemap",
+            "cutout_map_on":"use_map",
+            "emit_color":"color",
+            "emission_map":"texturemap",
+            "emission_map_on":"use_map",
+            "displacement_map":"texturemap",
+            "displacement_map_on":"displacement_map_on",
+            "displacement_map_amt":"float",
+            "coating":"float",
+            "coat_map":"texturemap",
+            "coat_map_on":"use_map",
+            "coat_roughness":"float",
+            "coat_rough_map":"texturemap",
+            "coat_rough_map_on":"use_map",
+            "trans_ior":"float",
+            "trans_ior_map":"texturemap",
+            "trans_ior_map_on":"use_map"
+        }
+    },
+    "3dsmax_usd_preview_surface":{
+        "id": "MaxUsdPreviewSurface",
+        "domain":"3dsmax",
+        "inputs":{
+            "useSpecularWorkflow": "boolean",
+            "diffuseColor":"color",
+            "diffuseColor_map":"texturemap",
+            "metallic":"float",
+            "metallic_map":"texturemap",
+            "specularColor":"color",
+            "specularColor_map":"texturemap",
+            "roughness":"float",
+            "roughness_map":"texturemap",
+            "occlusion":"float",
+            "occlusion_map":"texturemap",
+            "normal":"normal3f",
+            "normal_map":"normalmap",
+            "emissiveColor":"color",
+            "emissiveColor_map":"texturemap",
+            "opacity":"float",
+            "opacity_map":"texturemap",
+            "opacityThreshold":"float",
+            "displacement":"float",
+            "displacement_map":"texturemap",
+            "ior":"float",
+            "ior_map":"texturemap",
+            "clearcoat":"float",
+            "clearcoat_map":"texturemap",
+            "clearcoatRoughness":"float",
+            "clearcoatRoughness_map":"texturemap"
+        }
+    },
+    "3dsmax_pbr_metal_rough" : {
+        "domain": "3dsmax",
+        "id" : "PBRMetalRough",
+        "inputs": {
+            "ao_affects_diffuse" : "boolean",
+            "ao_affects_reflection" : "boolean",
+            "normal_flip_red" : "boolean",
+            "normal_flip_green" : "boolean",
+            "useGlossiness" : "integer",
+            "basecolor": "color",
+            "base_color_map": "texturemap",
+            "emit_color":"color",
+            "emit_color_map":"texturemap",
+            "displacement_amt":"float",
+            "displacement_map":"texturemap",
+            "opacity_map":"texturemap",
+            "roughness": "float",
+            "roughness_map": "texturemap",
+            "metalness": "float",
+            "metalness_map": "texturemap",
+            "norm_map": "normalmap",
+            "bump_map_amt":"float",
+            "ao_map": "texturemap"
+        }
+    },
+    "3dsmax_pbr_spec_gloss" : {
+        "domain": "3dsmax",
+        "id" : "PBRSpecGloss",
+        "inputs": {
+            "ao_affects_diffuse" : "boolean",
+            "ao_affects_reflection" : "boolean",
+            "normal_flip_red" : "boolean",
+            "normal_flip_green" : "boolean",
+            "useGlossiness" : "integer",
+            "basecolor": "color",
+            "base_color_map": "texturemap",
+            "emit_color":"color",
+            "emit_color_map":"texturemap",
+            "displacement_amt":"float",
+            "displacement_map":"texturemap",
+            "opacity_map":"texturemap",
+            "Specular": "color",
+            "specular_map": "texturemap",
+            "glossiness": "color",
+            "glossiness_map": "texturemap",
+            "norm_map": "normalmap",
+            "bump_map_amt":"float",
+            "ao_map": "texturemap"
+        }
+    },
+    "3dsmax_ai_standard_surface" : {
+        "domain": "3dsmax",
+        "id" : "ai_standard_surface"
+    }
+}
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/default.material_conversion b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/default.material_conversion
new file mode 100644
index 0000000..4a482d3
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/default.material_conversion
@@ -0,0 +1,431 @@
+{
+    "usd_preview_surface_to_max_usd_preview_surface": {
+        "target_material": {
+            "id": "MaxUsdPreviewSurface",
+            "domain": "3dsmax"
+        },
+        "source_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": "useSpecularWorkflow",
+                "opacityThreshold": "opacityThreshold",
+                "diffuseColor": "diffuseColor",
+                "diffuseColor_map": "diffuseColor",
+                "roughness": "roughness",
+                "roughness_map": "roughness",
+                "metallic": "metallic",
+                "metallic_map": "metallic",
+                "specularColor": "specularColor",
+                "specularColor_map": "specularColor",
+                "normal": "normal",
+                "normal_map": "normal",
+                "occlusion": "occlusion",
+                "occlusion_map": "occlusion",
+                "emissiveColor": "emissiveColor",
+                "emissiveColor_map": "emissiveColor",
+                "opacity": "opacity",
+                "opacity_map": "opacity",
+                "displacement": "displacement",
+                "displacement_map": "displacement",
+                "ior": "ior",
+                "ior_map": "ior",
+                "clearcoat": "clearcoat",
+                "clearcoat_map": "clearcoat",
+                "clearcoatRoughness": "clearcoatRoughness",
+                "clearcoatRoughness_map": "clearcoatRoughness"
+            }
+        }
+    },
+    "max_usd_preview_surface_to_usd_preview_surface": {
+        "source_material": {
+            "id": "MaxUsdPreviewSurface",
+            "domain": "3dsmax"
+        },
+        "target_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": "useSpecularWorkflow",
+                "opacityThreshold": "opacityThreshold",
+                "diffuseColor": {
+                    "value_parameter": "diffuseColor",
+                    "map_parameter": "diffuseColor_map"
+                },
+                "roughness": {
+                    "value_parameter": "roughness",
+                    "map_parameter": "roughness_map"
+                },
+                "metallic": {
+                    "value_parameter": "metallic",
+                    "map_parameter": "metallic_map"
+                },
+                "specularColor": {
+                    "value_parameter": "specularColor",
+                    "map_parameter": "specularColor_map"
+                },
+                "normal": {
+                    "value_parameter": "normal",
+                    "map_parameter": "normal_map"
+                },
+                "occlusion": {
+                    "value_parameter": "occlusion",
+                    "map_parameter": "occlusion_map"
+                },
+                "emissiveColor": {
+                    "value_parameter": "emissiveColor",
+                    "map_parameter": "emissiveColor_map"
+                },
+                "opacity": {
+                    "value_parameter": "opacity",
+                    "map_parameter": "opacity_map"
+                },
+                "displacement": {
+                    "value_parameter": "displacement",
+                    "map_parameter": "displacement_map"
+                },
+                "ior": {
+                    "value_parameter": "ior",
+                    "map_parameter": "ior_map"
+                },
+                "clearcoat": {
+                    "value_parameter": "clearcoat",
+                    "map_parameter": "clearcoat_map"
+                },
+                "clearcoatRoughness": {
+                    "value_parameter": "clearcoatRoughness",
+                    "map_parameter": "clearcoatRoughness_map"
+                }
+            }
+        }
+    },
+    "usd_preview_surface_to_pbr_metal_rough": {
+        "target_material": {
+            "id": "PBRMetalRough",
+            "domain": "3dsmax"
+        },
+        "source_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "basecolor": "diffuseColor",
+                "base_color_map": "diffuseColor",
+                "roughness": "roughness",
+                "roughness_map": "roughness",
+                "metalness": "metallic",
+                "metalness_map": "metallic",
+                "norm_map": "normal",
+                "ao_map": "occlusion",
+                "emit_color": "emissiveColor",
+                "emit_color_map": "emissiveColor",
+                "opacity_map": "opacity"
+            }
+        }
+    },
+    "usd_preview_surface_to_physical_material": {
+        "source_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "target_material": {
+            "id": "PhysicalMaterial",
+            "domain": "3dsmax"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "Base_Color": "diffuseColor",
+                "base_color_map": "diffuseColor",
+                "base_color_map_on": "diffuseColor",
+                "roughness": "roughness",
+                "roughness_map": "roughness",
+                "roughness_map_on": "roughness",
+                "metalness": "metallic",
+                "metalness_map": "metallic",
+                "metalness_map_on": "metallic",
+                "bump_map": "normal",
+                "bump_map_on": "normal",
+                "transparency": {
+                    "value_parameter": "opacity",
+                    "one_minus": true
+                }
+            }
+        }
+    },
+    "max_physical_material_to_usd_preview_surface": {
+        "source_material": {
+            "id": "PhysicalMaterial",
+            "max_class_id": [
+                1030429932,
+                3735928833
+            ],
+            "domain": "3dsmax"
+        },
+        "target_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": 0,
+                "diffuseColor": {
+                    "value_parameter": "Base_Color",
+                    "map_parameter": "base_color_map",
+                    "use_map_parameter": "base_color_map_on"
+                },
+                "specularColor": {},
+                "emissiveColor": {
+                    "value_parameter": "emit_color",
+                    "map_parameter": "emission_map",
+                    "use_map_parameter": "emission_map_on",
+                    "multiplier_parameter": "emission"
+                },
+                "displacement": {
+                    "value_parameter": "displacement_map_amt",
+                    "map_parameter": "displacement_map",
+                    "use_map_parameter": "displacement_map_on",
+                    "map_required": true
+                },
+                "opacity": {
+                    "case": {
+                        "case_parameter": "transparency_map",
+                        "None": {
+                            "case": {
+                                "case_parameter": "cutout_map",
+                                "+": {
+                                    "map_parameter": "cutout_map",
+                                    "use_map_parameter": "cutout_map_on",
+                                    "one_minus": false,
+                                    "map_required": true
+                                }
+                            }
+                        }
+                    },
+                    "value_parameter": "Transparency",
+                    "map_parameter": "transparency_map",
+                    "use_map_parameter": false,
+                    "one_minus": true
+                },
+                "opacityThreshold": {
+                    "case": {
+                        "case_parameter": "transparency_map",
+                        "None": {
+                            "case": {
+                                "case_parameter": "cutout_map",
+                                "+": {
+                                    "value": 0.5
+                                }
+                            }
+                        }
+                    },
+                    "value": 0.0
+                },
+                "roughness": {
+                    "value_parameter": "roughness",
+                    "map_parameter": "roughness_map",
+                    "use_map_parameter": "roughness_map_on",
+                    "case": {
+                        "case_parameter": "roughness_inv",
+                        "True": {
+                            "one_minus": true
+                        },
+                        "False": {
+                            "one_minus": false
+                        }
+                    }
+                },
+                "metallic": {
+                    "value_parameter": "metalness",
+                    "map_parameter": "metalness_map",
+                    "use_map_parameter": "metalness_map_on"
+                },
+                "clearcoat": {
+                    "value_parameter": "coating",
+                    "map_parameter": "coat_map",
+                    "use_map_parameter": "coat_map_on"
+                },
+                "clearcoatRoughness": {
+                    "value_parameter": "coat_roughness",
+                    "map_parameter": "coat_rough_map",
+                    "use_map_parameter": "coat_rough_map_on"
+                },
+                "occlusion": {},
+                "normal": {
+                    "map_parameter": "bump_map",
+                    "use_map_parameter": "bump_map_on"
+                },
+                "ior": {
+                    "value_parameter": "trans_ior",
+                    "map_parameter": "trans_ior_map",
+                    "use_map_parameter": "trans_ior_map_on"
+                }
+            }
+        }
+    },
+    "pbr_metal_rough_to_usd_preview_surface": {
+        "source_material": {
+            "id": "PBRMetalRough",
+            "domain": "3dsmax",
+            "max_class_id": [
+                3490651648,
+                3195528448
+            ]
+        },
+        "target_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": 0,
+                "diffuseColor": {
+                    "value_parameter": "basecolor",
+                    "map_parameter": "base_color_map"
+                },
+                "emissiveColor": {
+                    "value_parameter": "emit_color",
+                    "map_parameter": "emit_color_map"
+                },
+                "displacement": {
+                    "value_parameter": "displacement_amt",
+                    "map_parameter": "displacement_map",
+                    "map_required": true
+                },
+                "opacity": {
+                    "map_parameter": "opacity_map"
+                },
+                "opacityThreshold": {},
+                "roughness": {
+                    "value_parameter": "roughness",
+                    "map_parameter": "roughness_map",
+                    "case": {
+                        "case_parameter": "useGlossiness",
+                        "1": {
+                            "one_minus": true
+                        },
+                        "2": {
+                            "one_minus": false
+                        }
+                    }
+                },
+                "metallic": {
+                    "value_parameter": "metalness",
+                    "map_parameter": "metalness_map"
+                },
+                "occlusion": {
+                    "map_parameter": "ao_map"
+                },
+                "normal": {
+                    "map_parameter": "norm_map"
+                }
+            }
+        }
+    },
+    "pbr_spec_gloss_to_usd_preview_surface": {
+        "source_material": {
+            "id": "PBRSpecGloss",
+            "domain": "3dsmax"
+        },
+        "target_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": 1,
+                "diffuseColor": {
+                    "value_parameter": "basecolor",
+                    "map_parameter": "base_color_map"
+                },
+                "emissiveColor": {
+                    "value_parameter": "emit_color",
+                    "map_parameter": "emit_color_map"
+                },
+                "displacement": {
+                    "value_parameter": "displacement_amt",
+                    "map_parameter": "displacement_map",
+                    "map_required": true
+                },
+                "opacity": {
+                    "map_parameter": "opacity_map"
+                },
+                "opacityThreshold": {},
+                "roughness": {
+                    "value_parameter": "glossiness",
+                    "map_parameter": "glossiness_map",
+                    "case": {
+                        "case_parameter": "useGlossiness",
+                        "1": {
+                            "one_minus": true
+                        },
+                        "2": {
+                            "one_minus": false
+                        }
+                    }
+                },
+                "specularColor": {
+                    "value_parameter": "specular",
+                    "map_parameter": "specular_map"
+                },
+                "occlusion": {
+                    "map_parameter": "ao_map"
+                },
+                "normal": {
+                    "map_parameter": "norm_map"
+                }
+            }
+        }
+    },
+    "ai_standard_surface_to_usd_preview_surface": {
+        "source_material": {
+            "id": "ai_standard_surface",
+            "domain": "3dsmax"
+        },
+        "target_material": {
+            "id": "UsdPreviewSurface",
+            "domain": "usd"
+        },
+        "parameter_mapping": {
+            "mappings": {
+                "useSpecularWorkflow": 0,
+                "diffuseColor": {
+                    "value_parameter": "base_color",
+                    "map_parameter": "base_color_shader",
+                    "use_map_parameter": "base_color_connected"
+                },
+                "specularColor": {},
+                "emissiveColor": {},
+                "displacement": {},
+                "opacity": {},
+                "opacityThreshold": {},
+                "roughness": {
+                    "value_parameter": "specular_roughness",
+                    "map_parameter": "specular_roughness_shader",
+                    "use_map_parameter": "specular_roughness_connected"
+                },
+                "metallic": {
+                    "value_parameter": "metalness",
+                    "map_parameter": "metalness_shader",
+                    "use_map_parameter": "metalness_connected"
+                },
+                "clearcoat": {},
+                "clearcoatRoughness": {},
+                "occlusion": {},
+                "normal": {
+                    "map_parameter": "normal_shader",
+                    "use_map_parameter": "normal_connected"
+                },
+                "ior": {
+                    "value_parameter": "specular_IOR",
+                    "map_parameter": "specular_IOR_shader",
+                    "use_map_parameter": "specular_IOR_connected"
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/usd_materials.mat_def b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/usd_materials.mat_def
new file mode 100644
index 0000000..86aa042
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/data_files/usd_materials.mat_def
@@ -0,0 +1,22 @@
+{
+    "usd_preview_surface": {
+        "id": "UsdPreviewSurface",
+        "domain": "usd",
+        "inputs": {
+            "useSpecularWorkflow": "int",
+            "diffuseColor": "color3f",
+            "specularColor": "color3f",
+            "emissiveColor": "color3f",
+            "displacement": "float",
+            "opacity": "float",
+            "opacityThreshold": "float",
+            "roughness": "float",
+            "metallic": "float",
+            "clearcoat": "float",
+            "clearcoatRoughness": "float",
+            "occlusion": "float",
+            "normal": "normal3f",
+            "ior": "float"
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/plugInfo.json b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/plugInfo.json
new file mode 100644
index 0000000..6ce6e55
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/plugInfo.json
@@ -0,0 +1,5 @@
+{
+    "Includes": [
+        "reader/", "writer/"
+    ]
+}
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/reader/plugInfo.json b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/reader/plugInfo.json
new file mode 100644
index 0000000..233b544
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/reader/plugInfo.json
@@ -0,0 +1,18 @@
+{
+   "Plugins":[
+      {
+         "Info":{
+            "MaxUsd":{
+               "ShadingModePlugin": {},
+               "ShaderReader":{
+                  "providesTranslator":[
+                     "UsdPreviewSurface"
+                  ]
+               }
+            }
+         },
+         "Name":"shaderReader",
+         "Type":"python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderReader.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderReader.py
new file mode 100644
index 0000000..d5365cb
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderReader.py
@@ -0,0 +1,92 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# maxUsd - the Python module for the 3ds Max USD component
+import maxUsd
+
+from pymxs import runtime as rt
+from pxr import UsdShade
+
+import traceback
+
+# the Python methods for material translation from UsdPreviewSurface
+import usd_material_reader
+
+_material_import_options = {
+    "texture_target_id": usd_material_reader._uberbitmapfile
+}
+
+class DefaultShaderReader(maxUsd.ShaderReader):
+    """
+    Default Shader Reader class handling the material translation to 3ds Max default materials
+    inherits from the base class ShaderReader from the 3ds Max USD component
+    """
+    
+    @classmethod
+    def CanImport(cls, importArgs):
+        """
+        Static class method required to determine if the class is handling the
+        translation context required by the import job. The current class only
+        handles converting materials from 'UsdPreviewSurface' elements.
+        """
+        if importArgs.GetPreferredMaterial() == "none" or \
+           importArgs.GetPreferredMaterial() == "maxUsdPreviewSurface" or \
+           importArgs.GetPreferredMaterial() == "pbrMetalRough" or \
+           importArgs.GetPreferredMaterial() == "physicalMaterial":
+            return maxUsd.ShaderReader.ContextSupport.Fallback
+        return maxUsd.ShaderReader.ContextSupport.Unsupported
+
+    def Read(self):
+        """Main import function that runs when the applicable material gets hit"""
+        try:
+            import_options = self.GetArgs()
+            material_import_options = dict(_material_import_options)
+            preferredMaterial = import_options.GetPreferredMaterial()
+            if preferredMaterial == "none" or preferredMaterial == "maxUsdPreviewSurface":
+                material_import_options['material_target_id'] = "MaxUsdPreviewSurface"
+            elif preferredMaterial == "pbrMetalRough":
+                material_import_options['material_target_id'] = "PBRMetalRough"
+            elif preferredMaterial == "physicalMaterial":
+                material_import_options['material_target_id'] = "PhysicalMaterial"
+            else:
+                material_import_options['material_target_id'] = preferredMaterial
+            material_import_options['usd_import_options'] = import_options
+            shader = UsdShade.Shader(self.GetUsdPrim())
+            mat = usd_material_reader.output_max_material(shader, material_import_options, {})
+            if mat:
+                self.RegisterCreatedMaterial(shader.GetPath(), rt.GetHandleByAnim(mat))
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Read() - Error: %s' % str(e))
+            print(traceback.format_exc())
+
+        return True
+
+
+# register the ShaderReader to use for the supported materials
+maxUsd.ShaderReader.Register(DefaultShaderReader, "UsdPreviewSurface")
+
+maxUsd.ShadingModeRegistry.RegisterImportConversion( \
+        "UsdPreviewSurface", \
+        UsdShade.Tokens.universalRenderContext, \
+        "USD Preview Surface", \
+        "Fetches back a UsdPreviewSurface material dumped as UsdShade" )
+
+# preferred 3ds Max specific materials
+#   - maxUsdPreviewSurface -> "MaxUsdPreviewSurface"
+#   - pbrMetalRough -> "PBRMetalRough"
+#   - physicalMaterial -> "PhysicalMaterial"
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderWriter.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderWriter.py
new file mode 100644
index 0000000..bae6ada
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/shaderWriter.py
@@ -0,0 +1,83 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# maxUsd - the Python module for the 3ds Max USD component
+import maxUsd
+
+from pymxs import runtime as rt
+from pxr import UsdShade
+
+import traceback
+
+# the Python methods for material translation to UsdPreviewSurface
+import usd_material_writer
+
+class DefaultShaderWriter(maxUsd.ShaderWriter):
+    """
+    Default Shader Writer class handling the material translation for
+    the 3ds Max default materials
+    inherits from the base class ShaderWriter from the 3ds Max USD component
+    """
+    
+    # We keep a map of all written usd texture prims, to their associated 3dsMax maps.
+    # We should clear this map between USD exports, but there is no great way to know this 
+    # currently. We will clear the map when the stage changes, which necessarily implies
+    # we are in a different export.
+    _stage = None
+    _usd_shade_to_max_map = {}
+
+    @classmethod
+    def CanExport(cls, exportArgs):
+        """
+        Static class method required to determine if the class is handling the
+        translation context required by the export job. The current class only
+        handles converting materials to 'UsdPreviewSurface' elements.
+        """
+        if exportArgs.GetConvertMaterialsTo() == "UsdPreviewSurface":
+            return maxUsd.ShaderWriter.ContextSupport.Supported
+        return maxUsd.ShaderWriter.ContextSupport.Unsupported
+
+    def Write(self):
+        """Main export function that runs when the applicable material gets hit"""
+        try:
+            # If the stage changes, it is a different export, clear _usd_shade_to_max_map.
+            if self.GetUsdStage() != DefaultShaderWriter._stage:
+                DefaultShaderWriter._stage = self.GetUsdStage()
+                DefaultShaderWriter._usd_shade_to_max_map = {}
+            
+            # the 'GetMaterial()' method returns the anim handle on the material
+            # need to fetch the anim on the handle to get back the pymxs.Material back
+            material = rt.GetAnimByHandle(self.GetMaterial())
+
+            # create the Shade prim
+            nodeShader = UsdShade.Shader.Define(self.GetUsdStage(), self.GetUsdPath())
+            nodeShader.CreateIdAttr("UsdPreviewSurface")
+            # assign the created Shade prim as the USD prim for the ShaderWriter
+            self.SetUsdPrim(nodeShader.GetPrim())
+            
+            usd_material_writer.export_material(material, self.GetUsdStage(), nodeShader, self.GetUsdPath(), self.GetFilename(), self.GetExportArgs(), DefaultShaderWriter._usd_shade_to_max_map, self.IsUSDZFile())
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+
+
+# register the ShaderWriter to use for the supported materials
+maxUsd.ShaderWriter.Register(DefaultShaderWriter, rt.PhysicalMaterial.nonLocalizedName) # or use the actual non-localized string "Physical Material"
+maxUsd.ShaderWriter.Register(DefaultShaderWriter, "PBR Material (Metal/Rough)")
+maxUsd.ShaderWriter.Register(DefaultShaderWriter, "PBR Material (Spec/Gloss)")
+maxUsd.ShaderWriter.Register(DefaultShaderWriter, "USD Preview Surface")
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_reader.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_reader.py
new file mode 100644
index 0000000..7ccbd6e
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_reader.py
@@ -0,0 +1,461 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Material reader methods
+
+It makes use of `.material_conversion` and `.mat_def` user defined json files stored in the "data_files" 
+folder located in this directory, or either the "$userTools" or "$userSettings" 3dsMax folders.
+
+"""
+
+import os
+import json
+import sys
+try:
+    import typing
+except ImportError:
+    # this is just for type hints
+    pass
+
+from collections import defaultdict
+
+import pymxs
+from pxr import Usd, UsdShade, Gf, UsdUtils, UsdGeom, Sdf
+
+import usd_utils
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2020, Autodesk Inc.'
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDImporter)
+
+WARN = RT.Name("warn")
+ERROR = RT.Name("error")
+
+maxver = RT.maxversion()
+if maxver[0] >= 26000:  # 3ds Max 2024 and up
+    _oslbitmapfile = "OSLBitmap2.osl"
+    _uberbitmapfile = "UberBitmap2.osl"
+else:
+    _oslbitmapfile = "OSLBitmap.osl"
+    _uberbitmapfile = "UberBitmap.osl"
+
+UBERBITMAP_OUTPUTS = {
+    "rgb":1,
+    "r":2,
+    "g":3,
+    "b":4,
+    "a":5
+}
+
+def get_usd_texture_map_channel(usd_texture, material_import_options):
+    # type: (UsdShade.Shader, dict) -> int
+    """Get map channel for a usd texture. Fallback to 1 if any unexpected missing connections."""
+    st_attr_input = usd_texture.GetInput("st")
+    if not st_attr_input:
+        RT.UsdImporter.Log(ERROR, "Missing 'st' input for : {0}".format(usd_texture))
+        return 1
+    primvar_reader_outputs = st_attr_input.GetValueProducingAttributes()
+    if not primvar_reader_outputs:
+        RT.UsdImporter.Log(ERROR, "Unable to determine primvar input for : {0}".format(usd_texture))
+        return 1
+    if len(primvar_reader_outputs) > 1:
+        RT.UsdImporter.Log(WARN, "USDTextureReader has more than one 'st' input, using first input : {0}".format(usd_texture))
+
+    st_src_prim = primvar_reader_outputs[0].GetPrim()
+
+    st_source = UsdShade.Shader(st_src_prim)
+    varname_input = st_source.GetInput("varname")
+    id = st_source.GetIdAttr().Get()
+
+    if id == "UsdTransform2d":
+        # Then there must be a transform2D
+        transform_in_input = st_source.GetInput("in")
+        if not transform_in_input:
+            RT.UsdImporter.Log(ERROR, "Unable to determine primvar input for : {0}".format(usd_texture))
+            return 1
+        transform_2d_outputs = transform_in_input.GetValueProducingAttributes()
+        outputs_count = len(transform_2d_outputs)
+        if not transform_2d_outputs or outputs_count < 1:
+            RT.UsdImporter.Log(ERROR, "Unable to determine primvar input for : {0}".format(usd_texture))
+            return 1
+        st_src_prim = transform_2d_outputs[0].GetPrim()
+        usd_primvar_reader = UsdShade.Shader(st_src_prim)
+    elif id == "UsdPrimvarReader_float2":
+        usd_primvar_reader = st_source
+    else:
+        RT.UsdImporter.Log(ERROR, "Unable to determine primvar input for : {0}".format(usd_texture))
+        return 1
+
+    varname_input = usd_primvar_reader.GetInput("varname")
+    varname_value_attributes = varname_input.GetValueProducingAttributes()
+    if not varname_value_attributes:
+        RT.UsdImporter.Log(ERROR, "Unable to determine primvar input for : {0}".format(usd_texture))
+        return 1
+    if len(varname_value_attributes) > 1:
+        RT.UsdImporter.Log(WARN, "USDPrimvarReader has more than one 'varname' input, using first input : {0}".format(usd_primvar_reader))
+
+    primvar_name = varname_value_attributes[0].Get()
+
+    primvar_channel = material_import_options["usd_import_options"].GetPrimvarChannel(primvar_name)
+    if primvar_channel == -1:
+        RT.UsdImporter.Log(ERROR, "Channel is not mapped for primvar name: {0} for {1}. Using fallback channel 1.".format(primvar_name, usd_texture))
+        return 1
+
+    return primvar_channel
+
+def output_max_texture_osl(usd_texture, max_texture_id, material_import_options):
+    # type: (UsdShade.Shader, str, dict) -> pymxs.runtime.Texture
+    """Return an OSL texture reader from a USD texture node"""
+    if not usd_utils.is_supported_osl(max_texture_id):
+        RT.UsdImporter.Log(ERROR, "Unsupported OSL type specified, using {0} instead: {1}".format(_uberbitmapfile, max_texture_id))
+        max_texture_id = _uberbitmapfile
+
+    texture = RT.OSLMap()
+    max_root = RT.symbolicPaths.getPathValue("$max")
+    osl_path = os.path.join(max_root, 'OSL', max_texture_id)
+    texture.OSLPath = osl_path
+    texture.OSLAutoUpdate = True
+
+    file_attr = usd_texture.GetInput('file')
+    if file_attr:
+        resolved_file_path = file_attr.Get().resolvedPath
+        
+        # if file_attr Shader input resolvedPath is an empty string, this may be because it is truly
+        # an empty string at the resolvedPath or it can be due to the UDIM case:
+        #   https://forum.aousd.org/t/getting-empty-string-when-trying-to-get-resolvedpath-of-udim-path/406/2
+        if resolved_file_path == '':
+            file_path = file_attr.Get().path
+            is_udim = usd_utils.is_filepath_udim(file_path)
+
+            if is_udim:
+                dir = os.path.dirname(os.path.abspath(file_path))
+                udim_file = os.path.basename(file_path)
+                directory_name = os.fsdecode(dir)
+                udim_filename = os.fsdecode(udim_file)
+                first_udim_filename = usd_utils.find_first_valid_udim_for_filename(directory_name, udim_filename)
+
+                if first_udim_filename is None:
+                    RT.UsdImporter.Log(ERROR, "UDIM format specified in imported file but no UDIM valid files found at specified directory : {0}".format(file_path))
+                else:
+                    list_of_udims_with_udims_in_their_filename = usd_utils.get_all_valid_udims_from_dir_for_filename(directory_name, udim_filename)
+                    udim_list_str = ' '.join(list_of_udims_with_udims_in_their_filename)
+                    
+                    texture.filename = file_path
+                    texture.UDIM = 1
+                    texture.loadUDIM = os.path.join(directory_name, udim_filename)
+                    texture.Filename_UDIMList = udim_list_str
+
+            elif os.path.isfile(file_path):
+                # likely user error where they set empty string for "inputs:file" Shader of UsdUVTexture 
+                # or could be more cases where resolution fails for whatever reason
+                texture.filename = file_path
+            else:
+                texture.filename = ''
+        else:
+            texture.filename = resolved_file_path
+        
+
+    primvar_channel = get_usd_texture_map_channel(usd_texture, material_import_options)
+
+    st_input = usd_texture.GetInput("st")
+    wrap_s_input = usd_texture.GetInput("wrapS")
+    wrap_t_input = usd_texture.GetInput("wrapT")
+
+    wrap_s_val = None
+    wrap_t_val = None
+    scale_val = None
+    rotation_val = None
+    translation_val = None
+
+    if wrap_s_input:
+        wrap_s_val = wrap_s_input.Get()
+
+    if wrap_t_input:
+        wrap_t_val = wrap_t_input.Get()
+
+    if st_input and st_input.GetConnectedSource() is not None:
+        st_conn_source = st_input.GetConnectedSource()[0]
+
+        scale_input = st_conn_source.GetInput("scale")
+        rotation_input = st_conn_source.GetInput("rotation")
+        translation_input = st_conn_source.GetInput("translation")
+
+        scale_val = scale_input.Get()
+        rotation_val = rotation_input.Get()
+        translation_val = translation_input.Get()
+
+    if max_texture_id.lower() == _uberbitmapfile.lower():
+        texture.UVSet = primvar_channel
+
+        # determine and apply wrap mode
+        if wrap_s_val and wrap_t_val and wrap_s_val != wrap_t_val:
+            RT.UsdImporter.Log(WARN, 'No support for differing wrap modes, defined in wrapS and wrapT as defined in {0}. Setting value to "periodic" for import.'.format(usd_texture.GetPrim().GetName()))
+            texture.WrapMode = "periodic"
+        elif wrap_s_val or wrap_t_val:
+            usd_wrap_mode = wrap_s_val or wrap_t_val
+            if usd_wrap_mode == "black":
+                texture.WrapMode = "black"
+            elif usd_wrap_mode == "clamp":
+                texture.WrapMode = "clamp"
+            elif usd_wrap_mode == "repeat":
+                texture.WrapMode = "periodic"            
+            elif usd_wrap_mode == "mirror":
+                texture.WrapMode = "mirror"
+            elif usd_wrap_mode == "useMetadata":
+                RT.UsdImporter.Log(WARN, 'No support for wrap mode "useMetadata" found in {0}. Setting value to "periodic" for import.'.format(usd_texture.GetPrim().GetName()))
+                texture.WrapMode = "periodic"
+        else:
+            # default wrap mode in 3dsmax
+            texture.WrapMode = "periodic"
+
+        if translation_val:
+            # apply translation
+            texture.offset = RT.Point3(-translation_val[0], -translation_val[1], 0)
+
+        if rotation_val and not usd_utils.float_almost_equal(rotation_val, 0):
+            # apply rotation
+            texture.rotate = rotation_val
+            texture.RotAxis = RT.Point3(0, 0, 1) # fix rotation axis to (0, 0, 1)
+            texture.RotCenter = RT.Point3(0, 0, 0) # fix rotation axis to (0, 0, 0) (instead of (0.5, 0.5, 0) uber bitmap default)
+
+            rot_matrix = RT.RotateZMatrix(-rotation_val)
+
+            usd_translation = RT.Point3(texture.offset[0], texture.offset[1], 0)
+            rotated_translation = usd_translation * rot_matrix
+
+            texture.offset = rotated_translation
+
+        if scale_val:
+            # apply scaling
+
+            if scale_val[0] == scale_val[1]:
+                texture.tiling = RT.Point3(1, 1, 1) # fix tiling to (1, 1, 1)
+                texture.scale = texture.tiling[0] / scale_val[0] if scale_val[0] != 0 else sys.float_info.max
+                texture.offset = RT.Point3(
+                    texture.offset[0] / scale_val[0] if scale_val[0] != 0 else sys.float_info.max, 
+                    texture.offset[1] / scale_val[1] if scale_val[1] != 0 else sys.float_info.max, 
+                    0)
+            else:
+                if rotation_val != 0:
+                    RT.UsdImporter.Log(WARN, "Non uniform texture scaling with an applied rotation may result in incorrect texture mapping for {0}.".format(usd_texture.GetPrim().GetName()))
+                
+                texture.scale = 1 # fix scale to 1
+                texture.tiling = RT.Point3(
+                    scale_val[0] if scale_val[0] != 0 else sys.float_info.max, 
+                    scale_val[1] if scale_val[1] != 0 else sys.float_info.max, 
+                    0)
+                texture.offset = RT.Point3(
+                    texture.offset[0] / scale_val[0] if scale_val[0] != 0 else sys.float_info.max, 
+                    texture.offset[1] / scale_val[1] if scale_val[1] != 0 else sys.float_info.max, 
+                    0)
+
+    elif max_texture_id.lower() == _oslbitmapfile.lower():
+        pos_map = RT.OSLMap()
+        pos_osl_path = os.path.join(max_root, 'OSL', 'GetUVW.osl')
+        pos_map.OSLPath = pos_osl_path
+        pos_map.OSLAutoUpdate = True
+        texture.Pos_map = pos_map
+        pos_map.UVSet = primvar_channel
+
+    return texture
+
+def valid_texture_type(max_texture_type):
+    # type: (str) -> bool
+    """Is this a valid texture type?"""
+    if hasattr(RT, max_texture_type):
+        return True
+    if max_texture_type.lower().endswith(".osl") and hasattr(RT, 'OSLMap'):
+        return True
+    return False
+
+def output_max_classic_bitmap(usd_texture, material_import_options):
+    # type: (UsdShade.Shader, dict) -> pymxs.MXSWrapperBase
+    """Output max bitmap from usd texture"""
+    texture = RT.Bitmaptexture()
+    file_attr = usd_texture.GetInput('file')
+    if file_attr:
+        file_path = file_attr.Get().resolvedPath
+        texture.filename = file_path
+    primvar_channel = get_usd_texture_map_channel(usd_texture, material_import_options)
+    texture.coordinates.mapChannel = primvar_channel
+    return texture
+
+def output_max_texture(usd_texture, material_import_options, usd_shader_to_max_map={}):
+    # type: (UsdShade.Shader, dict, dict) -> pymxs.MXSWrapperBase
+    """Output max texture from usd texture, based on material_import_options"""
+    max_texture_id = material_import_options.get("texture_target_id", "Bitmaptexture")
+    if not valid_texture_type(max_texture_id):
+        RT.UsdImporter.Log(WARN, "Invalid texture type specified: {0}".format(max_texture_id))
+        return
+
+    max_texture = usd_shader_to_max_map.get(usd_texture.GetPath(), None)
+    if not max_texture:
+        if max_texture_id.lower().endswith('.osl'):
+            max_texture = output_max_texture_osl(usd_texture, max_texture_id, material_import_options)
+        else:
+            max_texture = output_max_classic_bitmap(usd_texture, material_import_options)
+
+        map_name = usd_texture.GetPath().name
+        max_texture.name = map_name
+        usd_shader_to_max_map[usd_texture.GetPath()] = max_texture
+    return max_texture
+
+def output_max_material(shader, material_import_options, usd_shader_to_max_map={}):
+    # type: (UsdShade.Shader, dict, dict) -> pymxs.MXSWrapperBase
+    """
+    Create a max material and texture connections from a usd shader.
+    """
+    source_id = usd_utils.get_id_from_mat(shader)
+    if not source_id:
+        RT.UsdImporter.Log(WARN, "Unknown shader, cannot get an id: {0}".format(shader))
+        return
+    target_id = material_import_options.get("material_target_id", "MaxUsdPreviewSurface")
+
+    conversion_recipe = usd_utils.get_conversion_recipe(source_id, "usd", target_id, "3dsmax")
+    if not conversion_recipe:
+        RT.UsdImporter.Log(WARN, "No conversion recipe found for {0}".format(shader))
+        return
+
+    # mapping_from_material interperets the JSON conversion_mapping, and returns
+    # a dictionary with the calculated values for each parameter for the target material
+    conversion = usd_utils.mapping_from_material(shader, conversion_recipe)
+    # Bundle the calculated conversion with the whole recipe for passing on
+    conversion_recipe["conversion"] = conversion
+
+    target_material_id = conversion_recipe["target_material"]["id"]
+    target_mat_domain = conversion_recipe["target_material"]["domain"]
+
+    klass = getattr(RT, target_material_id)
+    mat = klass()
+
+    target_mat_def = usd_utils.get_material_def(target_material_id, target_mat_domain)
+    target_inputs = target_mat_def["inputs"]
+
+    # Iterate through all the conversion mapping items.
+    # The key is expected to be the target parameter of the material,
+    # and the value is the mapped value from the source material.
+    for target_param, mapped_value in conversion.items():
+        if mapped_value == None:
+            # The value is None, continue.
+            continue
+
+        # Get the input type for the target material parameter, defined by material definition.
+        input_type = target_inputs.get(target_param, None)
+        if input_type is None:
+            RT.UsdImporter.Log(ERROR, "Input type not defined in material definition for target_param: {0} - {1}".format(target_param, target_mat_def))
+            continue
+
+        # Handle params that may be mapped to usd attributes
+        mapped_to_attribute = isinstance(mapped_value, Usd.Attribute)
+        if input_type == "use_map":
+            # In max materials usually have a boolean 'use_map' for texture maps.
+            # When this maps to some USD Attribute input, this means there
+            # is a texture and so this must be true.
+            setattr(mat, target_param, True)
+            continue
+        elif mapped_to_attribute and input_type in ["texturemap", "normalmap"]:
+            # The value is a USD Attribute, now we need to get the attribute source.
+            usd_input_prim = mapped_value.GetPrim()
+            if usd_input_prim.IsValid():
+                
+                channel_output = UsdShade.Output(mapped_value)
+                if not channel_output:
+                    RT.UsdImporter.Log(WARN, "Unsupported UsdShade connection:{0}".format(str(mapped_value)))
+                    continue
+                
+                # 2 scenarios. Either we are connected directly to a shader output, or we are 
+                # connected to a node graph's output.            
+                # If we have a value producing attribute (node graphs), we need to figure out the 
+                # actual shader output (digs down node the node graph recursively).
+                value_producing_attrs = channel_output.GetValueProducingAttributes()
+                # Shader connection
+                if len(value_producing_attrs) == 0:
+                    usd_shader = UsdShade.Shader(usd_input_prim)
+                # Node graph connection
+                else:
+                    value_attr = value_producing_attrs[0]
+                    shader_prim = value_attr.GetPrim()
+                    if not shader_prim.IsA(UsdShade.Shader):
+                        RT.UsdImporter.Log(WARN, "Unsupported UsdShade connection:{0}".format(str(value_attr)))
+                        continue
+                    usd_shader = UsdShade.Shader(shader_prim)                
+                                
+                # Our target material input type is a texturemap (or normalmap)
+                # We will need to output a max bitmap texture reader of some kind.
+                
+                max_texture = output_max_texture(usd_shader, material_import_options, usd_shader_to_max_map)
+                if RT.classOf(max_texture) == RT.OSLMap:
+                    # with oslmaps we can connect specific texture channels
+                    output = UsdShade.Output(mapped_value)
+                    channels = None
+                    if output:
+                        value_producing_attrs = output.GetValueProducingAttributes()
+                        # NodeGraph connection
+                        if len(value_producing_attrs) > 0:
+                            value_attr = value_producing_attrs[0]
+                            channels = value_attr.GetBaseName()
+                    if not channels:
+                        # Shader connection
+                        channels = mapped_value.GetBaseName()
+                    multi_channel_map = RT.MultiOutputChannelTexmapToTexmap()
+                    multi_channel_map.sourceMap = max_texture
+                    out_channel_index = UBERBITMAP_OUTPUTS.get(channels, 1)
+                    multi_channel_map.outputChannelIndex = out_channel_index
+                    multi_channel_map.name = "{0}:{1}".format(max_texture.name, channels)
+                    setattr(mat, target_param, multi_channel_map)
+                else:
+                    # otherwise - a simple connection for standard bitmaps
+                    setattr(mat, target_param, max_texture)
+            else:
+                RT.UsdImporter.Log(WARN, "USD Attribute input prim is not valid:{0}".format(mapped_value))
+            continue
+        elif not mapped_to_attribute and input_type in ["texturemap", "normalmap"]:
+            # this occurs as a side effect of how the mapping conversion system was made:
+            # when we have a property that has an associated map property and the property
+            # value is a non-attribute, the associated map property still gets processed by
+            # function and ends up having no meaning in terms of the import process.
+            continue
+        elif mapped_to_attribute:
+            # Skip any remaining mapped_to_attribute mappings.
+            # This is expected because we map N to 1 : max param to one USD param.
+            # For example, this is the mapping for USDPreviewSurface to PhysicalMaterial.
+            # Keys on the left are the parameters for PhysicalMaterial, right-hand side is USD:
+            # "roughness": "roughness"
+            # "roughness_map": "roughness"
+            # "roughness_map_on": "roughness"
+            # All of these might evaluate to a USDAttribute, or they all might evaluate to a float.
+            continue
+
+        # handle params mapped to values
+        if input_type == "color":
+            if isinstance(mapped_value, Gf.Vec3f):
+                # Convert USD color (Vec3f) to a Max color
+                color = RT.color(mapped_value[0]*255, mapped_value[1]*255, mapped_value[2]*255)
+                setattr(mat, target_param, color)
+            else:
+                # Anything else is unexpected.
+                RT.UsdImporter.Log(WARN, "Expected input for color param:{0}".format(mapped_value))
+        elif input_type in ["float", "int", "boolean"]:
+            # A simple value, can be set directly.
+            setattr(mat, target_param, mapped_value)
+        else:
+            # Anything else is unexpected.
+            RT.UsdImporter.Log(WARN, "Unexpected input type or mapped value - {0}:{1}:{2}".format(input_type, mapped_value, target_param))
+    return mat
+
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_writer.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_writer.py
new file mode 100644
index 0000000..ede5af7
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_material_writer.py
@@ -0,0 +1,686 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Register export callback used for material conversions.
+
+The following script registers a callback function for the `export_complete_callback` function defined
+in the 3dsMax USD component plugin. In this example, we use the export complete callback to define and
+apply material export conversion logic. This is achieved with the use of `.material_conversion` and `.mat_def`
+json files, which are user defined, which can be stored in the "data_files" folder located in this directory, or
+either the "$userTools" or "$userSettings" 3dsMax folders.
+"""
+
+import os
+import sys
+import json
+import pathlib
+
+from collections import defaultdict
+
+import itertools
+try:
+    import typing
+except ImportError:
+    # this is just for type hints
+    pass
+import numbers
+import pymxs
+from pxr import Usd, UsdShade, Sdf, Tf, Gf, UsdUtils
+
+import usd_utils
+import maxUsd
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2020, Autodesk Inc.'
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDExporter)
+
+WARN = RT.Name("warn")
+ERROR = RT.Name('error')
+
+sdf_type_map = {
+    "float": Sdf.ValueTypeNames.Float,
+    "int": Sdf.ValueTypeNames.Int,
+    "float3": Sdf.ValueTypeNames.Float3,
+    "normal3f": Sdf.ValueTypeNames.Normal3f,
+    "color3f": Sdf.ValueTypeNames.Color3f
+}
+
+OSL_BITMAP_OUTPUTS = {
+    1:"rgb",
+    2:"r",
+    3:"g",
+    4:"b",
+    5:"a"
+}
+
+# default export options
+_material_export_options = {
+    "bake": False,
+    "bake_image_type": "png",
+    # Typically a relative sdf path from the configured root primitive, where to export materials.
+    # Assuming default export options, this would resolve to /Materials".
+    # If the path specified here is absolute, then it is used as is.
+    "materials_root": "Materials",
+    "bake_dir": "baked_textures",
+    "bitmap_dimensions": (512, 512),
+    "st_input_name": "map1",
+    "target_material_id": "UsdPreviewSurface",
+    "relative_texture_paths": True,
+    "usd_filename": None
+}
+
+def bake_bitmap(from_tex, material_export_options, file_path=None):
+    """
+    Bake the bitmap for a max texture. Return baked file path
+    """
+    if file_path:
+        bake_dir = os.path.dirname(file_path)
+    else:
+        export_dir = os.path.dirname(material_export_options["usd_filename"])
+        bake_dir = os.path.join(export_dir, material_export_options["bake_dir"])
+        file_path = os.path.join(bake_dir, from_tex.name)
+
+    if not os.path.exists(bake_dir):
+        os.makedirs(bake_dir, exist_ok=True)
+
+    base_name = os.path.basename(file_path)
+    render_name, ext = os.path.splitext(base_name)
+    render_ext = material_export_options.get("bake_image_type")
+    render_file_path = os.path.join(bake_dir, render_name + '.' + render_ext)
+
+    bitmap_dimensions = material_export_options.get("bitmap_dimensions")
+    bitmap = RT.renderMap(from_tex, filename=render_file_path, size=RT.point2(bitmap_dimensions[0], bitmap_dimensions[1]))
+    RT.save(bitmap)
+    RT.close(bitmap)
+
+    return render_file_path
+
+def set_bitmap_scale_bias_sourcecolorspace(uv_texture_shader, is_normal_map):
+    source_color_space_input = uv_texture_shader.CreateInput("sourceColorSpace", Sdf.ValueTypeNames.Token)
+    # when this is implemented in 2024, we need update the logic to check if the max bitmap
+    # color space is set to "raw" or not, for not this is not implemented yet
+    source_color_space_input.Set("raw")
+    if is_normal_map:
+        scale_input = uv_texture_shader.CreateInput("scale", Sdf.ValueTypeNames.Float4)
+        bias_input = uv_texture_shader.CreateInput("bias", Sdf.ValueTypeNames.Float4)
+        scale_input.Set(Gf.Vec4f(2, 2, 2, 1))
+        bias_input.Set(Gf.Vec4f(-1, -1, -1, 0))
+
+def get_max_map_output_channel(max_map):
+    # type: (pymxs.MXSWrapperBase) -> str
+    """Get the output channel as string for the max texture map.
+    Returns rgb by default if not a MultiOutput map."""
+    output_channel = "rgb" # default
+    if RT.ClassOf(max_map) == RT.MultiOutputChannelTexmapToTexmap:
+        output_channel = OSL_BITMAP_OUTPUTS.get(max_map.outputChannelIndex, "")
+        if not output_channel:
+            source_map = max_map.sourceMap
+            RT.UsdExporter.Log(WARN, "Unsupported output channel index for {0}: {1}. Using 'r' channel instead.".format(source_map, max_map.outputChannelIndex))
+            # OSL bitmap lookups index 6-7 are 'luminance' and 'average' which don't have a direct translation.
+            # Fallback to r as it's probably reasonably close.
+            output_channel = 'r'
+    return output_channel
+
+def output_usd_texture(from_max_tex, stage, parent_path, material_export_options, usd_shade_to_max_map, is_normal_map):
+    # type: (pymxs.MXSWrapperBase, Usd.Stage, Sdf.Path, dict, dict, bool) -> UsdShade.Shader
+    """
+    Outupt a usd texture from a max texture.
+    """
+    file_path = None
+    texture_lookup = None
+    bake_enabled = material_export_options.get("bake", False)
+    texture_graph_name = Tf.MakeValidIdentifier(from_max_tex.name)
+    output_channel = "rgb"
+
+    if bake_enabled:
+        file_path = bake_bitmap(from_max_tex, material_export_options, file_path=file_path)
+    else:
+        # see if we can resolve to a texture lookup from this input
+        texture_lookup = resolve_texture_lookup(from_max_tex)
+        if texture_lookup and hasattr(texture_lookup, 'filename'):
+            file_path = usd_utils.get_file_path_mxs(texture_lookup.filename)
+            texture_graph_name = Tf.MakeValidIdentifier(texture_lookup.name)
+            # When figuring out the used channel (rgb,r,g,b or a), do not use the 
+            # resolved texture, as the information is not in that node. It lives 
+            # in MultiOutputChannelTexmapToTexmap which will be slotted into the 
+            # material.
+            output_channel = get_max_map_output_channel(from_max_tex)
+        elif not texture_lookup and hasattr(from_max_tex, 'filename'):
+            file_path = usd_utils.get_file_path_mxs(from_max_tex.filename)
+            texture_lookup = from_max_tex
+
+    if not file_path:
+        # no valid file path for this texture, skip it.
+        RT.UsdExporter.Log(WARN, "Unsupported texture map: {0}".format(from_max_tex))
+        return None, texture_lookup, None, None
+
+    # Make the file path relative.
+    if material_export_options.get("relative_texture_paths", True) and material_export_options["usd_filename"]:
+        start_path = os.path.dirname(material_export_options["usd_filename"])
+        file_path = usd_utils.safe_relpath(file_path, start_path)
+    
+    texture_graph_path = parent_path.AppendChild(texture_graph_name)
+    
+    # Keep track of whether we are creating a new texture in this call, or simply adding new outputs/connections.
+    is_new = True
+    
+    # This is where we check if the texture_graph is already created or not.
+    # If you connect a texturemap to more than one material input, this code will be run multiple times
+    # on the same texture node.
+    # But it will only export once, because we will find the existing texture_graph in the usd_shade_to_max_map
+    texture_graph = None
+    uv_texture_shader = None
+    if usd_shade_to_max_map.get(texture_graph_path) == texture_lookup:
+        # already exported this texture, but we may need to do more connections
+        texture_graph = UsdShade.NodeGraph.Get(stage, texture_graph_path)
+        uv_texture_shader = UsdShade.Shader.Get(stage, texture_graph_path.AppendChild(texture_graph_name))
+        is_new = False
+    if not texture_graph:
+        # TODO : uniquifying of the paths doesnt work as expected, as this function can be called multiple times 
+        # add new outputs. This will not work correctly as the second call will not find the unique name created here.
+        texture_graph_path = uniquify_path(stage, parent_path, texture_graph_name)
+        texture_graph = UsdShade.NodeGraph.Define(stage, texture_graph_path)
+        
+        uv_texture_shader = UsdShade.Shader.Define(stage, texture_graph_path.AppendChild(texture_graph_name))
+        
+        uv_texture_shader.CreateIdAttr("UsdUVTexture")
+        usd_shade_to_max_map[texture_graph.GetPath()] = texture_lookup
+        # Set to repeat by default (USD sets to "metadata" by default).
+        wrap_s_input = uv_texture_shader.CreateInput("wrapS", Sdf.ValueTypeNames.Token)
+        wrap_t_input = uv_texture_shader.CreateInput("wrapT", Sdf.ValueTypeNames.Token)
+        wrap_s_input.Set("repeat")
+        wrap_t_input.Set("repeat")
+
+        if texture_lookup:
+            if RT.classOf(texture_lookup) == RT.Bitmaptexture:
+                if texture_lookup.coordinates.U_Tile == True:
+                    wrap_s_input.Set("repeat")
+                if texture_lookup.coordinates.V_Tile == True:
+                    wrap_t_input.Set("repeat")
+                if texture_lookup.coordinates.U_Mirror == True:
+                    wrap_s_input.Set("mirror")
+                if texture_lookup.coordinates.V_Mirror == True:
+                    wrap_t_input.Set("mirror")
+                if not texture_lookup.coordinates.U_Tile and not texture_lookup.coordinates.U_Mirror:
+                    wrap_s_input.Set("black")
+                if not texture_lookup.coordinates.V_Tile and not texture_lookup.coordinates.V_Mirror:
+                    wrap_t_input.Set("black")
+
+            if RT.classOf(texture_lookup) == RT.OSLMap:
+                osl_file_name = os.path.basename(texture_lookup.OSLPath).lower()
+                # The two OSL bitmaps we support handle wrapping the same way.
+                # U and V wrap modes are not configured individually.
+                if osl_file_name == "uberbitmap.osl" or osl_file_name == "oslbitmap.osl" or \
+                    osl_file_name == "uberbitmap2.osl" or osl_file_name == "oslbitmap2.osl":
+                    # The "default" wrap mode means "whatever the default is in the renderer".
+                    # We will assume "black" here, as this is how it shows in the Max viewport, and
+                    # it seems to be the most common default.
+                    if texture_lookup.WrapMode == "black" or texture_lookup.WrapMode == "default":
+                        wrap_s_input.Set("black")
+                        wrap_t_input.Set("black")
+                    elif texture_lookup.WrapMode == "mirror":
+                        wrap_s_input.Set("mirror")
+                        wrap_t_input.Set("mirror")
+                    elif texture_lookup.WrapMode == "periodic":
+                        wrap_s_input.Set("repeat")
+                        wrap_t_input.Set("repeat")
+                    elif texture_lookup.WrapMode == "clamp":
+                        wrap_s_input.Set("clamp")
+                        wrap_t_input.Set("clamp")
+
+        if usd_utils.has_non_ascii_char(file_path):
+            RT.UsdExporter.Log(WARN, "USD does not support unicode in filepaths. Please remove invalid characters from texture filepaths.")
+        else:
+            windows_path = pathlib.PureWindowsPath(file_path)
+            pathStr = str(windows_path.as_posix())
+            # Normalizing the path will strip the ./ from the relative path - as far as the OS is concerned, that is fine.
+            # However, the PXR ArDefaultResolver, if not seeing a ./ will also look into any defined search paths, having the ./
+            # prefix will make it understand that the relative path is anchored to the layer we are exporting. (see
+            # ArDefaultResolver::SetDefaultSearchPath())
+            if not windows_path.is_absolute():
+                pathStr = "./" + pathStr
+            uv_texture_shader.CreateInput("file", Sdf.ValueTypeNames.Asset).Set(pathStr)
+
+    if texture_lookup:
+        if RT.classOf(texture_lookup) == RT.Bitmaptexture:
+            if RT.isProperty(texture_lookup, "bitmap") and texture_lookup.bitmap and texture_lookup.bitmap.gamma == 1.0:
+                set_bitmap_scale_bias_sourcecolorspace(uv_texture_shader, is_normal_map)
+        elif RT.classOf(texture_lookup) == RT.OSLMap:
+            osl_file_name = os.path.basename(texture_lookup.OSLPath).lower()
+            if osl_file_name == "uberbitmap.osl" or osl_file_name == "oslbitmap.osl":
+                if texture_lookup.AutoGamma == 0 and texture_lookup.ManualGamma == 1.0:
+                    set_bitmap_scale_bias_sourcecolorspace(uv_texture_shader, is_normal_map)
+            if osl_file_name == "uberbitmap2.osl" or osl_file_name == "oslbitmap2.osl":
+                if texture_lookup.ManualGamma == 1.0:
+                    set_bitmap_scale_bias_sourcecolorspace(uv_texture_shader, is_normal_map)
+
+    # Add the output to the texture shader, and wire it up to the node graph output.
+    if len(output_channel) == 3:
+        uv_texture_shader.CreateOutput(output_channel, Sdf.ValueTypeNames.Float3)
+        graph_output = texture_graph.CreateOutput(output_channel, Sdf.ValueTypeNames.Float3)
+        graph_output.ConnectToSource(uv_texture_shader.ConnectableAPI(), output_channel)
+    elif len(output_channel) == 1:
+        uv_texture_shader.CreateOutput(output_channel, Sdf.ValueTypeNames.Float)
+        graph_output = texture_graph.CreateOutput(output_channel, Sdf.ValueTypeNames.Float)
+        graph_output.ConnectToSource(uv_texture_shader.ConnectableAPI(), output_channel)
+    else:
+        RT.UsdExporter.Log(RT.Name('error'), "Texture sampler connections of {0} channels unsupported.".format(len(output_channel)))
+
+    return texture_graph, texture_lookup, uv_texture_shader, is_new
+
+
+def output_usd_uv_reader(stage, parent_path, primvar_name):
+    """
+    Output usd texture sampler from max texture
+    """
+    uv_reader_name = "PrimvarReader_{0}".format(primvar_name)
+    uv_reader_path = uniquify_path(stage, parent_path, uv_reader_name)
+    uv_reader = UsdShade.Shader.Define(stage, uv_reader_path)
+    uv_reader.CreateIdAttr("UsdPrimvarReader_float2")
+    return uv_reader
+
+def normal_bumps():
+    """Returns a list of Normal Bump types."""
+    normal_bumps = [RT.Normal_Bump]
+    if hasattr(RT, "VRayNormalMap"):
+        normal_bumps.append(RT.VRayNormalMap)
+    return normal_bumps
+
+def resolve_texture_lookup(in_value):
+    # type: (pymxs.MXSWrapperBase) -> pymxs.MXSWrapperBase
+    """Given a material input, resolve to the source bitmap lookup if possible."""
+    in_type = RT.classOf(in_value)
+    if in_type == RT.Bitmaptexture:
+        return in_value
+    elif in_type == RT.MultiOutputChannelTexmapToTexmap:
+        # handle known OSL bitmap lookups.
+        source_map = in_value.sourceMap
+        if source_map and RT.classOf(source_map) == RT.OSLMap:
+            if usd_utils.is_supported_osl(source_map.OSLPath):
+                return source_map
+    # make sure normal bump has a texture input
+    elif in_type in normal_bumps():
+        normal_map = in_value.normal_map
+        if normal_map:
+            return resolve_texture_lookup(normal_map)
+
+def uniquify_path(stage, parent_path, name):
+    # type: (Usd.Stage, Sdf.Path, str) -> Sdf.Path
+    """Generate a unique path"""
+    unique_path = parent_path.AppendChild(Tf.MakeValidIdentifier(name))
+    # due to max allowing duplicate names, the following is to deduplicate the paths in
+    # case there already exists a prim with said path in the stage (otherwise it will be overriden)
+    prim = stage.GetPrimAtPath(unique_path)
+    uniq = 1
+    while prim.IsValid():
+        unique_path = parent_path.AppendChild("{0}_{1}".format(Tf.MakeValidIdentifier(name), uniq))
+        uniq += 1
+        prim = stage.GetPrimAtPath(unique_path)
+    return unique_path
+
+def map_channel_from_texturemap(texturemap):
+    # type: (pymxs.texturemap) -> int
+    """From a texturemap, get the channel map index"""
+    map_channel = None
+    warn_msg = ""
+    if RT.classOf(texturemap) == RT.Bitmaptexture:
+        map_channel = texturemap.coordinates.mapChannel
+    elif RT.classOf(texturemap) == RT.MultiOutputChannelTexmapToTexmap:
+        source_map = texturemap.sourceMap
+        if source_map and RT.classOf(source_map) == RT.OSLMap:
+            if hasattr(source_map, 'UVSet'):
+                # UVSet is the attribute for input map channel of uberbitmap
+                # If doesn't exist, fallback to 1 below
+                map_channel = source_map.UVSet
+            elif hasattr(source_map, 'Pos_map'):
+                if hasattr(source_map.Pos_map, 'UVSet'):
+                    map_channel = source_map.Pos_map.UVSet
+        else:
+            warn_msg + "Could not derive UVSet from: {0}\n".format(source_map)
+
+        if not map_channel:
+            warn_msg + "OSL texturemap type does not have UVSet: {0}\n".format(texturemap)
+    else:
+       warn_msg + "Unknown texturemap type for map channel: {0}\n".format(texturemap)
+
+    if not map_channel:
+        # default fallback to channel 1
+        RT.UsdExporter.Log(WARN, warn_msg + "Using fallback map channel 1 for texture: {0}.".format(texturemap))
+        map_channel = 1
+
+    return map_channel
+
+def primvar_mapping_from_texturemap(texturemap, material_export_options):
+    # type: (pymxs.texturemap, dict) -> str
+    """From a texturemap, get the primvar mapping string."""
+    channel_map = map_channel_from_texturemap(texturemap)
+    return material_export_options["usd_export_options"].GetChannelPrimvarName(channel_map)
+
+def check_and_warn_for_non_uniform_scaling_with_rotation(scale_x, scale_y, rotation, texture_name):
+    # type: (float, float, float, str) -> None
+    """Check if the scaling is not uniform. If it is not, and we have a rotation applied, we might get skewed textures in USD."""
+    uniformScaling = usd_utils.float_almost_equal(scale_x, scale_y)
+    if rotation != 0.0 and not uniformScaling:
+        RT.UsdExporter.Log(WARN, "Non uniform texture scaling with an applied rotation may result in incorrect texture mapping for {0}.".format(texture_name))
+
+
+def create_2dtransform_for_bitmap(stage, texture_graph, uv_primvar_name, uv_reader, st_input, scale_val = Gf.Vec2f(1.0, 1.0), rotation_val = 0.0, translation_val = Gf.Vec2f(0.0, 0.0)):
+    """
+    Create UsdTransform2d Shader prim if necessary
+    """
+    if scale_val != (1.0, 1.0) or rotation_val != 0.0 or translation_val != (0.0, 0.0):
+        # Connect a UsdTransform2d node to support texture transforms (offset,translate,rotate).
+        transform_2d_name = "TextureTransform_{0}".format(uv_primvar_name)
+        transform_2d_path = uniquify_path(stage, texture_graph.GetPath(), transform_2d_name)
+        transform_2d_prim = UsdShade.Shader.Define(stage, transform_2d_path)
+        
+        transform_2d_prim.CreateIdAttr("UsdTransform2d")
+
+        transform_input = transform_2d_prim.CreateInput("in", Sdf.ValueTypeNames.Float2)
+        transform_input.ConnectToSource(uv_reader.ConnectableAPI(), "result")
+        st_input.ConnectToSource(transform_2d_prim.ConnectableAPI(), "result")
+
+        # Transform inputs...
+        if scale_val != (1.0, 1.0):
+            scale_input = transform_2d_prim.CreateInput("scale", Sdf.ValueTypeNames.Float2)
+            scale_input.Set(scale_val)
+        
+        if rotation_val != 0.0:
+            rotation_input = transform_2d_prim.CreateInput("rotation", Sdf.ValueTypeNames.Float)
+            rotation_input.Set(rotation_val)
+
+        if translation_val != (0.0, 0.0):
+            translation_input = transform_2d_prim.CreateInput("translation", Sdf.ValueTypeNames.Float2)
+            translation_input.Set(translation_val)
+
+def write_usd_material(from_mat, conversion_mapping, stage, shader, shader_path, material_export_options, usd_shade_to_max_map):
+    # type: (pymxs.MXSWrapperBase, dict, Usd.Stage, Usd.Shader, Sdf.Path, dict, dict) -> None
+    """
+    Output usd material from a max material
+    """
+    target_mat_def = conversion_mapping["target_material"]
+    target_inputs = target_mat_def["inputs"]
+
+    mat_path = shader_path.GetParentPath()
+    material = UsdShade.Material.Get(stage, mat_path)
+    
+    # mapping_from_material interperets the JSON conversion_mapping, and returns
+    # a dictionary with the calculated values for each parameter for the target material
+    mapping = usd_utils.mapping_from_material(from_mat, conversion_mapping)
+    # Bundle the calculated conversion with the whole recipe for passing on
+    conversion_mapping["conversion"] = mapping
+
+    # Iterate over the target material definition items which are both strings: "target_param_name":"target_input_type"
+    for target_param_name, target_input_type in target_inputs.items():
+        # store off the calculated in_value from mapping
+        in_value = mapping.get(target_param_name)
+        if in_value == None:
+            # There is no mapping for this target_param_name
+            continue
+        texture_lookup = False
+        # note: If you try to compare types that are coming from a maxscript object within a Python script,
+        # disregarding the fact the types could now be Python native type, it will generate a MAXScript
+        # exception about an unsupported method being called (the operator '>').
+        # (i.e. a float keeps being a Python float and not a MAXScript Value representing a float
+        #       which a call to pymxs.runtime.classof ends up doing)
+        in_type = type(in_value)
+        if in_type == pymxs.MXSWrapperBase:
+            in_type = RT.classOf(in_value)
+            texture_lookup = resolve_texture_lookup(in_value)
+        bake_enabled = material_export_options.get("bake", False)
+
+        texture_src_type = ""
+        if in_type == RT.Color:
+            # The input type is a max color, convert to USD color.
+            value = (in_value.r/255, in_value.g/255, in_value.b/255)
+        elif texture_lookup or (RT.superClassOf(in_value) == RT.textureMap and bake_enabled):
+            # We've found a texture lookup, or we just want to bake this input texturemap.
+            if target_input_type == "normal3f":
+                # If our input type is normal3f, we only want to map normal maps, but not bump maps.
+                texture_src_type = usd_utils.get_src_type(target_param_name, conversion_mapping)
+                if not texture_src_type == "normalmap" and not in_type in normal_bumps():
+                    msg = "Texture source must be a normal map for {0}.{1}: {2}".format(from_mat, target_param_name, texture_lookup)
+                    RT.UsdExporter.Log(WARN, msg)
+                    continue
+
+            uv_primvar_name = primvar_mapping_from_texturemap(in_value, material_export_options)
+            if not uv_primvar_name:
+                RT.UsdExporter.Log(ERROR, "Texture ({0}) using a channel not mapped to a primvar.".format(in_value))
+                continue
+
+            texture_graph, resolved_texture, uv_texture, is_new = output_usd_texture(in_value, stage, mat_path.GetParentPath(), material_export_options, usd_shade_to_max_map, (texture_src_type == "normalmap"))
+
+            if not texture_graph:
+                # output_usd_texture could return None
+                continue
+
+            # As per USD documentation, shader connections should not cross material boundaries.
+            # We want to be able to reuse the texture maps we export accross multiple materials, 
+            # so they live outside of the materials. To conform to the connectivity rules, we create 
+            # an internal reference from inside the material, to the texture's NodeGraph. The 
+            # connection is made to the reference, which in within the material, and therefor we 
+            # respect the rules.
+            texture_ref = UsdShade.NodeGraph.Define(stage, mat_path.AppendChild(texture_graph.GetPrim().GetName()))
+            texture_ref.GetPrim().GetReferences().AddInternalReference(texture_graph.GetPath())
+            value = texture_ref
+                        
+            # If the texture is new (i.e. we were not just adding some outputs), add the UsdTransform2d
+            # and UsdPrimvarReader_float2 shading nodes to the graph.
+            if is_new:
+                uv_reader = output_usd_uv_reader(stage, texture_graph.GetPath(), uv_primvar_name)
+                input_frame_name = "frame:{0}".format(uv_primvar_name)
+
+                input_frame_primvar = texture_graph.CreateInput(input_frame_name, Sdf.ValueTypeNames.Token)
+                input_frame_primvar.Set(uv_primvar_name)
+
+                input_varname = uv_reader.CreateInput("varname", Sdf.ValueTypeNames.String)
+                input_varname.ConnectToSource(input_frame_primvar)
+
+                st_input = uv_texture.CreateInput("st", Sdf.ValueTypeNames.Float2)
+
+                if resolved_texture:
+                    st_input.ConnectToSource(uv_reader.ConnectableAPI(), "result")
+                    if RT.classOf(texture_lookup) == RT.Bitmaptexture:
+                        coords = resolved_texture.coords
+
+                        if coords.mappingType != 0:
+                            RT.UsdExporter.Log(WARN, "Unsupported texture mapping type. Only \"Texture\" is supported when exporting to USD.".format(texture_lookup.name))
+                        else :
+                            if coords.mapping != 0 and coords.mapping != 1:
+                                RT.UsdExporter.Log(WARN, "Unsupported texture mapping. Only \"Explicit Map Channel\" or \"Vertex Color Channel\" are supported when exporting to USD.".format(texture_lookup.name))
+                            else:
+                                scale = Gf.Vec2f(coords.UVTransform.scalepart[0], coords.UVTransform.scalepart[1])
+                                offset = Gf.Vec2f(coords.UVTransform.translation[0], coords.UVTransform.translation[1])
+                                rotationEuler = RT.QuatToEuler(coords.UVTransform.rotationpart)
+
+                                # Mirroring works differently in BitmapTexture VS USD.
+                                # In USD : flip and repeat texture outside unit square.
+                                # In BitmapTexture : UV coordinates are mirrored.
+                                # Luckily we can repruce max's behavior by scaling the texture by a 2X factor.
+                                # Caveat is if we are only mirroring on one axis, we may introduce non-uniform scaling, which doesnt
+                                # play well with texture rotations.
+                                if coords.U_Mirror:
+                                    scale[0] *= 2
+                                    offset[0] *= 2
+                                if coords.V_Mirror:
+                                    scale[1] *= 2
+                                    offset[1] *= 2
+
+                                # In .UVTransform, negative scalings are implemented via rotations around U,V,W.
+                                # In USD, we only want rotation around W, and there is no issue with negative scaling.
+                                # Undo the rotation, and reapply the sign to the scale.
+                                if coords.U_Tiling < 0.0 and coords.V_Tiling < 0.0:
+                                    scale[0] = -scale[0]
+                                    scale[1] = -scale[1]
+                                    rotationEuler.Z = usd_utils.normalize_angle(rotationEuler.Z - 180)
+                                elif coords.U_Tiling < 0.0:
+                                    scale[0] = -scale[0]
+                                    rotationEuler.X = usd_utils.normalize_angle(rotationEuler.X - 180)
+                                elif coords.V_Tiling < 0.0:
+                                    scale[1] = -scale[1]
+                                    rotationEuler.X = usd_utils.normalize_angle(rotationEuler.X + 180)
+                                    rotationEuler.Z = usd_utils.normalize_angle(rotationEuler.Z + 180)
+
+                                if scale != None:
+                                    check_and_warn_for_non_uniform_scaling_with_rotation(scale[0], scale[1], rotationEuler.Z, texture_lookup.name)
+                                  
+                                if not usd_utils.float_almost_equal(rotationEuler.X, 0.0) or not usd_utils.float_almost_equal(rotationEuler.Y, 0.0):
+                                    RT.UsdExporter.Log(WARN, "Unsupported texture rotation axis found on {0}. Only rotations around the Z axis can be exported to USD.".format(texture_lookup.name))
+                                
+                                create_2dtransform_for_bitmap(stage, texture_graph, uv_primvar_name, uv_reader, st_input, scale, rotationEuler.Z, offset)
+
+                    if RT.classOf(texture_lookup) == RT.OSLMap:
+                        osl_file_name = os.path.basename(texture_lookup.OSLPath)
+
+                        if osl_file_name.lower() == "uberbitmap.osl" or osl_file_name.lower() == "uberbitmap2.osl":
+                            # Parameters mapped from the OSL nodes inputs cannot be supported as they can be procedural, node dependant, randomized, etc.
+                            # Warn the user in those cases...
+                            if texture_lookup.Offset_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap Offset input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.RealHeight_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap RealHeight input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.RealWidth_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap RealWidth input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.RotAxis_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap RotAxis input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.RotCenter_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap RotCenter input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.Rotate_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap Rotate input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.Scale_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap Scale input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.Tiling_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap Tiling input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.WrapMode_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL UberBitmap  WrapMode input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+
+                            # Calculate total scaling, given RealWorld scale config, scale and tiling.
+                            # Inspired from the UberBitmap.osl implementation.
+                            worldScale = [1.0,1.0]
+                            if (texture_lookup.RealWorld):
+                                worldScale = [texture_lookup.RealWidth, texture_lookup.RealHeight, 1.0];
+
+                            bitmap_u_scaling = texture_lookup.Scale * worldScale[0]
+                            bitmap_u_tiling = texture_lookup.tiling[0]
+                            if bitmap_u_scaling != 0.0:
+                                usd_scale_u = bitmap_u_tiling / bitmap_u_scaling
+                            else:
+                                usd_scale_u = sys.float_info.max if bitmap_u_tiling > 0.0 else -sys.float_info.max
+
+                            bitmap_v_scaling =  texture_lookup.Scale * worldScale[1]
+                            bitmap_v_tiling = texture_lookup.tiling[1]
+                            if bitmap_v_scaling != 0.0:
+                                usd_scale_v =  bitmap_v_tiling / bitmap_v_scaling
+                            else:
+                                usd_scale_v = sys.float_info.max if bitmap_v_tiling > 0.0 else -sys.float_info.max
+
+                            # Multiplication order is different in OSL vs USdTransform2D, so need to scale the offset.
+                            # The offset is for the texture, whereas we are moving the UVs, so we need to inverse it.
+                            usd_offset_u = usd_scale_u * -texture_lookup.offset[0]
+                            usd_offset_v = usd_scale_v * -texture_lookup.offset[1]
+
+                            # USdTransform2D only supports rotations around W.
+                            if texture_lookup.RotAxis[0] != 0.0:
+                                RT.UsdExporter.Log(WARN, "Unsupported texture rotation, X axis value {0} found on {1} - value must be equal to 0.0. Texture rotation will be ignored.".format(texture_lookup.RotAxis[0], texture_lookup.name))
+                            elif texture_lookup.RotAxis[1] != 0.0:
+                                RT.UsdExporter.Log(WARN, "Unsupported texture rotation, Y axis value {0} found on {1} - value must be equal to 0.0. texture rotation will be ignored.".format(texture_lookup.RotAxis[1], texture_lookup.name))
+                            elif texture_lookup.RotAxis[2] <= 0.0:
+                                RT.UsdExporter.Log(WARN, "Unsupported texture rotation, Z axis value {0} found on {1} - value must be greater than 0.0. texture rotation will be ignored.".format(texture_lookup.RotAxis[1], texture_lookup.name))
+                            else:
+                                # Deal with the rotation. We need to adjust the translation to account for the rotation center.
+                                rot_matrix = RT.RotateZMatrix(texture_lookup.Rotate)
+                                
+                                scaled_center_u = texture_lookup.RotCenter[0] * usd_scale_u
+                                scaled_center_v = texture_lookup.RotCenter[1] * usd_scale_v
+
+                                rot_center_u = usd_offset_u - scaled_center_u
+                                rot_center_v = usd_offset_v - scaled_center_v
+                                rotatedCenter = RT.Point3(rot_center_u, rot_center_v, 0) * rot_matrix
+
+                                usd_offset_u = rotatedCenter[0] + scaled_center_u
+                                usd_offset_v = rotatedCenter[1] + scaled_center_v
+
+                            scale_value = Gf.Vec2f(usd_scale_u,usd_scale_v)
+                            rotate_value = texture_lookup.Rotate
+                            translation_value = Gf.Vec2f(usd_offset_u, usd_offset_v)
+
+                            if scale_value != None and texture_lookup.Rotate != None:
+                                check_and_warn_for_non_uniform_scaling_with_rotation(scale_value[0], scale_value[1], texture_lookup.Rotate, texture_lookup.name)
+
+                            create_2dtransform_for_bitmap(stage, texture_graph, uv_primvar_name, uv_reader, st_input, scale_value, rotate_value, translation_value)
+                        
+                        if osl_file_name.lower() == "oslbitmap.osl" or osl_file_name.lower() == "oslbitmap2.osl":
+                            # Parameters mapped from the OSL nodes inputs cannot be supported as they can be procedural, node dependant, randomized, etc.
+                            # Warn the user in those cases...
+                            if texture_lookup.Pos_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL Bitmap Position input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.Scale_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL Bitmap Scale input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+                            if texture_lookup.WrapMode_map != None:
+                                RT.UsdExporter.Log(WARN, "The OSL Bitmap WrapMode input is not supported when exporting to USD. Only static texture transforms are supported.".format(texture_lookup.name))
+
+                            scale = 1.0
+                            if texture_lookup.Scale != 0.0:
+                                scale = 1.0 / texture_lookup.Scale
+
+                            scale_value = Gf.Vec2f(scale,scale)
+
+                            create_2dtransform_for_bitmap(stage, texture_graph, uv_primvar_name, uv_reader, st_input, scale_val = scale_value)
+
+                else:
+                    st_input.ConnectToSource(uv_reader.ConnectableAPI(), "result")
+        else:
+            value = in_value
+
+        if in_type == RT.Color and target_input_type == "float":
+            # To go from color to float we take the luminance.
+            value = 0.2126 * value[0] + 0.7152 * value[1] + 0.0722 * value[2]
+
+        if isinstance(value, UsdShade.NodeGraph):
+            channel = get_max_map_output_channel(in_value)
+            shader.CreateInput(target_param_name, sdf_type_map[target_input_type]).ConnectToSource(value.ConnectableAPI(), channel)
+        elif isinstance(value, numbers.Number) or RT.superClassOf(value) == RT.Value:
+            shader.CreateInput(target_param_name, sdf_type_map[target_input_type]).Set(value)
+
+
+
+def export_material(material, stage, shader_prim, usd_path, usd_filename, export_options, usd_shade_to_max_map, isUSDZ = False):
+    material_export_options = dict(_material_export_options)
+    material_export_options["usd_filename"] = usd_filename
+    material_export_options["usd_export_options"] = export_options
+
+    # If exporting to USDZ, force absolute paths. There are scenarios in which usdzip completely fails
+    # to resolve relative paths (it will sometimes erroneously resolves from the destination folder...)
+    # Using absolute paths, we avoid these issues, and it makes no difference, as paths are re-anchored
+    # to the USDZ root anyway after the call to usdzip.
+    if isUSDZ:
+        material_export_options["relative_texture_paths"] = False
+    
+    export_target_id = material_export_options.get("target_material_id", "UsdPreviewSurface")
+    source_id = usd_utils.get_id_from_mat(material)
+    if not source_id:
+        RT.UsdExporter.Log(WARN, "Unknown material, cannot get an id: {0}".format(material))
+        return
+    conversion_recipe = usd_utils.get_conversion_recipe(source_id, "3dsmax", export_target_id, "usd")
+
+    if not conversion_recipe:
+        RT.UsdExporter.Log(WARN, "No conversion recipe for material: {0}".format(material))
+        return
+
+    write_usd_material(material, conversion_recipe, stage, shader_prim, usd_path, material_export_options, usd_shade_to_max_map)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_utils.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_utils.py
new file mode 100644
index 0000000..b296f5d
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/usd_utils.py
@@ -0,0 +1,430 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+"""
+Defined utility functions used by the `usd_material_import.py` and `usd_material_export.py` scripts
+"""
+
+import pymxs
+import json
+import os, re
+
+from contextlib import contextmanager
+from collections import defaultdict
+
+try:
+    import typing
+except ImportError:
+    # this is just for type hints
+    pass
+
+from pxr import UsdShade
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2020, Autodesk Inc.'
+
+@contextmanager
+def cwd(path):
+    oldpwd = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(oldpwd)
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDExporter)
+
+BITMAP = RT.Name("Bitmap")
+
+_THIS_DIR = os.path.dirname(__file__)
+DATA_FILES_DIR = os.path.join(_THIS_DIR, "data_files")
+
+max_ver_info = RT.maxversion()
+max_ver_year = max_ver_info[0] # RT.maxversion() returns an array where index 0 holds part of the build number
+
+DATA_EXTENSIONS = [".material_conversion", ".mat_def"]
+SEARCH_PATHS = {
+    "defaults": DATA_FILES_DIR
+}
+
+SEARCH_PATHS["UserPath1"] = RT.symbolicPaths.getPathValue("$userTools")
+SEARCH_PATHS["UserPath2"] = RT.symbolicPaths.getPathValue("$userSettings")
+
+# data global dicts
+_CONFIG_DATA = {} # type: typing.Dict[str, dict]
+
+SUPPORTED_OSL_BITMAPS = ['uberbitmap.osl', 'oslbitmap.osl', 'uberbitmap2.osl', 'oslbitmap2.osl']
+
+def is_supported_osl(osl_name):
+    # type: (str) -> bool
+    base_name = os.path.basename(osl_name).lower()
+    return base_name in SUPPORTED_OSL_BITMAPS
+
+def has_non_ascii_char(str):
+    unicodeMatch = re.search("[^\x00-\x7F]", str)
+    return unicodeMatch != None
+
+def get_file_path_mxs(filename):
+    _, file_path = RT.FileResolutionManager.getFullFilePath(pymxs.byref(filename), BITMAP)
+    return file_path
+
+def safe_relpath(path, start):
+    """Return relpath if same drive, else return path."""
+    path_drive, _ = os.path.splitdrive(os.path.abspath(path))
+    start_drive, _ = os.path.splitdrive(os.path.abspath(start))
+    if path_drive.lower() == start_drive.lower():
+        return os.path.relpath(path, start)
+    return path
+
+def _gather_data_files(search_paths=SEARCH_PATHS, data_extensions=DATA_EXTENSIONS):
+    """
+    Search SEARCH_PATHS for DATA_EXTENSIONS files.
+    Return a nested dictionary of data files:
+    data_files["path_type"]["extension"]
+    """
+    data_files = {}
+    with cwd(_THIS_DIR):
+        for path_type, search_path in search_paths.items():
+            path_dict = defaultdict(list)
+            data_files[path_type] = path_dict
+            for file in os.listdir(search_path):
+                for extension in data_extensions:
+                    if file.lower().endswith(extension):
+                        path_dict[extension].append(os.path.join(search_path, file))
+    return data_files
+
+def _gather_data(data_files):
+    """
+    Get data from data_files and concatenate into dictionaries.
+    Return a nested dictionary of :
+    conversion_data[extension]
+    """
+    conversion_data = {}
+    for extension in DATA_EXTENSIONS:
+        data = {}
+        conversion_data[extension] = data
+        for path_type in SEARCH_PATHS:
+            for data_file in data_files[path_type][extension]:
+                json_data = {}
+                try:
+                    with open(data_file) as f:
+                        json_data = json.load(f)
+                except:
+                    print("Bad json data file: {data_file}")
+                data.update(json_data)
+    return conversion_data
+
+def get_config_data(update=False):
+    """Lazy get of config data."""
+    global _CONFIG_DATA
+    if not update and _CONFIG_DATA:
+        return dict(_CONFIG_DATA)
+
+    config_files = _gather_data_files()
+    _CONFIG_DATA = _gather_data(config_files)
+    return _CONFIG_DATA
+
+def get_material_def(name, domain):
+    """Get a material definition from config data"""
+    config_data = get_config_data()
+
+    material_def = None
+    material_definitions = config_data[".mat_def"]
+    for mat in material_definitions.values():
+        if mat.get("id") == name and mat.get("domain") == domain:
+            material_def = mat
+            break
+
+    if material_def:
+        return material_def
+    else:
+        raise ValueError((name, domain))
+
+def get_conversion_recipe(source_id, source_domain, target_id, target_domain):
+    """From a material source_id and source_domain and target id, return conversion mapping dict"""
+    config_data = get_config_data()
+
+    conversion_recipe = {}
+
+    # get the full material definitions
+    source_def = None
+    target_def = None
+    parameter_mapping = None
+
+    for mat_def_name, mat_def in config_data[".mat_def"].items():
+        mat_id = mat_def.get("id")
+        if not mat_id:
+            Warning("Material definition missing 'id': {0}".format(mat_def_name))
+            continue
+
+        mat_domain = mat_def.get("domain")
+        if not mat_domain:
+            Warning("Material definition missing 'domain': {0}".format(mat_def_name))
+            continue
+
+        if mat_id == source_id and mat_domain == source_domain:
+            source_def = dict(mat_def)
+        elif mat_id == target_id and mat_domain == target_domain:
+            target_def = dict(mat_def)
+
+    if not source_def and target_def:
+        # couldn't find both source and target material definitions
+        return {}
+
+    for recipe_name, recipe in config_data[".material_conversion"].items():
+        recipe_source_material = recipe.get("source_material")
+        if not recipe_source_material:
+            Warning("Material conversion missing 'source_material': {0}".format(recipe_name))
+            continue
+
+        recipe_source_domain = recipe_source_material.get("domain")
+        if not recipe_source_domain:
+            Warning("Material conversion missing source 'domain': {0}".format(recipe_name))
+            continue
+        if not recipe_source_domain == source_domain:
+            continue
+
+        recipe_target_material = recipe.get("target_material")
+        if not recipe_target_material:
+            Warning("Material conversion missing 'target_material': {0}".format(recipe_name))
+            continue
+
+
+        recipe_target_id = recipe_target_material.get("id")
+        if not recipe_target_id:
+            Warning("Material conversion missing target 'id': {0}".format(recipe_name))
+            continue
+
+        recipe_target_domain = recipe_target_material.get("domain")
+        if not recipe_target_domain:
+            Warning("Material conversion missing target 'domain': {0}".format(recipe_name))
+            continue
+        if not recipe_source_domain == source_domain or not recipe_target_domain == target_domain:
+            continue
+        recipe_source_id = recipe_source_material.get("id")
+        if not recipe_source_id:
+            Warning("Material conversion missing source 'id': {0}".format(recipe_name))
+            continue
+        if recipe_target_id == target_id and recipe_source_id == source_id:
+            recipe_param_mapping = recipe.get("parameter_mapping")
+            if not recipe_param_mapping:
+                Warning("Material conversion missing 'parameter_mapping': {0}".format(recipe_name))
+                continue
+
+            parameter_mapping = dict(recipe_param_mapping)
+            break
+
+    if source_def and target_def and parameter_mapping:
+        conversion_recipe["source_material"] = source_def
+        conversion_recipe["target_material"] = target_def
+        conversion_recipe["parameter_mapping"] = parameter_mapping
+    else:
+        # couldn't find both source and target material definitions
+        return {}
+
+    return conversion_recipe
+
+def get_id_from_mat(mat):
+    """Convenience function to return an id from any given material (USD or MAX)"""
+    mat_id = None
+    if isinstance(mat, str):
+        mat_id  = mat
+    elif isinstance(mat, pymxs.MXSWrapperBase):
+        mat_id = str(RT.ClassOf(mat))
+    elif isinstance(mat, UsdShade.Shader):
+        shader_id_attr = mat.GetIdAttr()
+        if shader_id_attr:
+            mat_id = shader_id_attr.Get()
+
+    if not mat_id:
+        raise ValueError(mat)
+
+    return mat_id
+
+def mapping_property_getter(material, param):
+    """Get a material property for either max or usd domains
+    This makes mapping_from_material() domain agnostic"""
+    if isinstance(material, pymxs.MXSWrapperBase):
+        return RT.getProperty(material, param)
+    elif isinstance(material, UsdShade.Shader):
+        _input = material.GetInput(param)
+
+        if not _input:
+            return None
+
+        if _input.HasConnectedSource():
+            source, sourceName, sourceType = _input.GetConnectedSource()
+            attr =  source.GetOutput(sourceName).GetAttr()
+            return attr
+        else:
+            return _input.Get()
+    else:
+        raise ValueError((material, param))
+
+def max_dict_to_dict(max_dict):
+    """Util to convert max dict to python dict."""
+    return {key:max_dict[key] for key in max_dict.keys}
+
+def get_src_type(input_param, recipe):
+    # type: (str, dict) -> str
+    """Get the source input type as string for the parameter"""
+    mapping = recipe["parameter_mapping"]["mappings"]
+    map_src = mapping.get(input_param)
+    if type(map_src) is dict:
+        map_src = map_src["map_parameter"]
+    return recipe["source_material"]["inputs"].get(map_src)
+
+def mapping_from_material(material, conversion_recipe):
+    """
+    This function interperets the conversion_recipe dict, and returns
+    a dictionary with the calculated values for each parameter of the target material.
+    """
+    mapping = {}
+    parameter_mapping = conversion_recipe["parameter_mapping"]
+    if not parameter_mapping["mappings"].items():
+        raise Exception("There must be at least 1 mapping defined.")
+
+    for in_param, out_param in parameter_mapping["mappings"].items():
+        in_value_param_name = None
+        one_minus_param = None
+        map_param = None
+        use_map_param = None # indicates that there is a param to enable/disable texture map
+        map_required = None # indicates that a map is required to be meaningful
+        multiplier_param = None
+        direct_value = None
+
+        if type(out_param) is dict:
+            out_param = dict(out_param)
+            case = out_param.get("case", False)
+            while case:
+                # iterate potentially recursive case params
+                case_parameter = case.get("case_parameter")
+                if not case_parameter:
+                    Warning("A case data block has no case_parameter, skipping : {0}".format(case))
+                    break
+                case_params = None
+                case_val = mapping_property_getter(material, case_parameter)
+                case_params = case.get(str(case_val))
+                if case_val and not case_params:
+                    # case_val is something, so check the "+" case which is "at least one value" - or NOT None
+                    case_params = case.get("+")
+
+                if case_params and type(case_params) is dict:
+                    out_param.update(case_params)
+                    case = case_params.get("case", False)
+                else:
+                    case = False
+
+            in_value_param_name = out_param.get("value_parameter")
+            map_param = out_param.get("map_parameter")
+            use_map_param = out_param.get("use_map_parameter")
+            one_minus_param = out_param.get("one_minus", False)
+            map_required = out_param.get("map_required", False)
+            multiplier_param = out_param.get("multiplier_parameter")
+            direct_value = out_param.get("value")
+
+        elif type(out_param) is str:
+            # if just a string we assume as straight up value mapping
+            in_value_param_name = out_param
+
+        if map_param:
+            use_map = True
+            if use_map_param:
+                use_map = mapping_property_getter(material, use_map_param)
+            map_value = mapping_property_getter(material, map_param)
+
+            if (use_map_param and use_map and map_value) or (use_map_param == None and map_value):
+                mapping[in_param] = map_value
+                continue
+            if map_required:
+                mapping[in_param] = None
+                continue
+
+        if in_value_param_name:
+            in_param_value = mapping_property_getter(material, in_value_param_name)
+            if in_param_value is None:
+                #print("None value for in_value_param_name="+in_value_param_name)
+                mapping[in_param] = None
+                continue
+            if one_minus_param:
+                in_param_value = 1 - in_param_value
+            if multiplier_param:
+                mult = mapping_property_getter(material, multiplier_param)
+                in_param_value = mult * in_param_value
+            if not map_required:
+                mapping[in_param] = in_param_value
+                continue
+        if direct_value:
+            mapping[in_param] = direct_value
+            continue
+
+    return mapping
+
+def float_almost_equal(val1, val2):
+    return abs(val1-val2) < 1e-06
+
+def normalize_angle(angle):
+    # Reduce the angle
+    angle =  angle % 360.0
+    # Make it positive : 0 <= angle < 360
+    angle = (angle + 360.0) % 360.0
+    # Normalize :  -180 < angle <= 180
+    if (angle > 180.0):
+        angle -= 360.0
+    return angle
+
+def is_filepath_udim(file_path):
+    return "<UDIM>" in file_path
+
+def find_first_valid_udim_for_filename(directory_name, target_filename):
+    return get_all_valid_udims_from_dir_for_filename(directory_name, target_filename, first_only=True)
+
+def get_all_valid_udims_from_dir_for_filename(directory_name, target_filename, first_only=False):
+    u = 0
+    v = 0
+    udim_val = 1001 # first value based on formula: 1000 + (u + 1) + (v * 10)
+    MAX_UDIM_VAL = 9999
+
+    list_of_valid_udims = []
+    
+    dir_list = os.listdir(directory_name)
+    while udim_val <= MAX_UDIM_VAL:
+        udim_val_str = str(udim_val)
+        udim_target_filename = target_filename.replace("<UDIM>", udim_val_str)
+        for file in dir_list:
+            filename = os.fsdecode(file)
+
+            if udim_val_str in filename and filename == udim_target_filename:
+                if first_only:
+                    return udim_val_str
+                
+                list_of_valid_udims.append(udim_val_str)
+                break
+
+        if first_only == True and len(list_of_valid_udims) == 0:
+            break
+
+        u = u + 1
+        if u + 1 > 10:
+            u = 0
+            v = v + 1
+
+        udim_val = 1000 + (u + 1) + (v * 10)
+
+    if len(list_of_valid_udims) == 0:
+        Warning("No valid udim files found in  \"\{0}\".".format(directory_name))
+
+    return list_of_valid_udims
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materials/writer/plugInfo.json b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/writer/plugInfo.json
new file mode 100644
index 0000000..fc1b617
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materials/writer/plugInfo.json
@@ -0,0 +1,21 @@
+{
+   "Plugins":[
+      {
+         "Info":{
+            "MaxUsd":{
+               "ShaderWriter":{
+                  "providesTranslator":[
+                     "Physical Material",
+                     "PBR Material (Metal/Rough)",
+                     "PBR Material (Spec/Gloss)",
+                     "USD Preview Surface",
+                     "Standard Surface"
+                  ]
+               }
+            }
+         },
+         "Name":"shaderWriter",
+         "Type":"python"
+      }
+   ]
+}
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/materialXShaderWriter.py b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/materialXShaderWriter.py
new file mode 100644
index 0000000..70d8c2d
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/materialXShaderWriter.py
@@ -0,0 +1,90 @@
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdShade, Sdf
+import usd_utils
+import traceback
+import os
+
+class mtlXShaderWriter(maxUsd.ShaderWriter):
+	def Write(self):
+		try:
+			stage = self.GetUsdStage()
+			material = rt.GetAnimByHandle(self.GetMaterial())
+			isMultiTarget = len(self.GetExportArgs().GetAllMaterialConversions()) > 1
+
+			# Get what we need from the Scripted Material.
+			# The curent material name, so we know which one to connect.
+			curMatName = material.curMatName
+			if curMatName == None or curMatName == "":
+				rt.UsdExporter.Log(rt.Name("warn"), ("No valid MaterialX material found for " + material.name + ", conversion can't proceed."))
+				return
+			# The mtlx file path, so we can add it as a reference.
+			mtlxFilePath = material.MaterialXFile
+			# Make sure we have the absolute path, so we can make it relative to the exported file...
+			if not os.path.isabs(mtlxFilePath):
+				mtlxFilePath = rt.pathConfig.convertPathToAbsolute(mtlxFilePath)
+
+			# Find the prim where we want to add the reference
+			if isMultiTarget:
+				refHolderPrim = UsdShade.NodeGraph.Get(stage, self.GetUsdPath().GetParentPath())
+			else:
+				refHolderPrim = UsdShade.Material.Get(stage, self.GetUsdPath().GetParentPath())
+			ref = refHolderPrim.GetPrim().GetReferences()
+			
+			# In case the material is not exported to the main layer, the path on disk can be different.
+			# This need to be taken in consideration before the reference to the MaterialX file.
+			targetLayer = stage.GetEditTarget().GetLayer()
+			outputFile = self.GetFilename()
+			if not targetLayer.anonymous:
+				outputFile = targetLayer.identifier
+            	
+			# Add the reference to the Mtlx file.
+			if self.IsUSDZFile():
+				rt.UsdExporter.Log(rt.Name("warn"), ("Conversion of MaterialX material : " + material.name + ", is limited for USDZ and will not yield correct results."))
+				refPath = mtlxFilePath
+			else:
+				refPath = usd_utils.safe_relpath(mtlxFilePath, os.path.dirname(outputFile))
+			refPath = refPath.replace('\\','/')
+
+			# Set-up the current working directory as this can cause issues when adding the reference :
+			# The stage currently live's in memory, and doesn't know where it will end up on disk.
+			# So when using a relative path for the reference, it is unable to resolve the path, and so materialX are never added to the stage. 
+			# By setting up the current working directory, to the target output file's directory, we help it resolve the reference.
+			directory = os.path.dirname(outputFile)
+			os.makedirs(directory, exist_ok=True)
+			cwd = os.getcwd()
+			os.chdir(directory)
+			ref.AddReference(refPath, primPath="/MaterialX")
+			os.chdir(cwd)
+
+			# Add a pass-through connection between the prim holding the reference and the Material we are using inside of the Mtlx file.
+			matXPath = self.GetUsdPath().GetParentPath().AppendPath("Materials").AppendPath(curMatName)
+			matXPrim = UsdShade.Material.Get(stage, matXPath)
+			surfOutput = matXPrim.GetSurfaceOutput("mtlx")
+			if isMultiTarget:
+				refHolderSurfOut = refHolderPrim.CreateOutput("mtlx:surface", Sdf.ValueTypeNames.Token)
+			else:
+				refHolderSurfOut = refHolderPrim.CreateSurfaceOutput("mtlx")
+			refHolderSurfOut.ConnectToSource(surfOutput)
+
+			# Here we want to handle the case of exporting to multiple targets.
+			# Since this ShaderWriter doesn't really respect the API (no call to SetUsdPrim()),
+			# we need to create the pass-through between the NodeGraph encapsulating the MaterialX material and the material prim.
+			if isMultiTarget:
+				globalMat = UsdShade.Material.Get(stage, refHolderPrim.GetPath().GetParentPath())
+				surfaceOutput = globalMat.CreateSurfaceOutput("mtlx")
+				surfaceOutput.ConnectToSource(refHolderSurfOut)
+
+		except Exception as e:
+			# Quite useful to debug errors in a Python callback
+			print('Write() - Error: %s' % str(e))
+			print(traceback.format_exc())
+		
+	@classmethod
+	def CanExport(cls, exportArgs):
+		if exportArgs.GetConvertMaterialsTo() == "MaterialX":
+			return maxUsd.ShaderWriter.ContextSupport.Fallback
+		return maxUsd.ShaderWriter.ContextSupport.Unsupported
+
+# Register the writer.
+maxUsd.ShaderWriter.Register(mtlXShaderWriter, "MaterialX Material")
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/plugInfo.json b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/plugInfo.json
new file mode 100644
index 0000000..db6758b
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/plugInfo.json
@@ -0,0 +1,17 @@
+{
+   "Plugins":[
+      {
+         "Info": {
+             "MaxUsd": {
+                 "ShaderWriter": {
+                     "providesTranslator": [
+                         "MaterialX Material"
+                     ]
+                 }
+             }
+         },
+         "Name": "materialXShaderWriter",
+         "Type": "python"
+     }
+   ]
+}
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/register-materialx-target.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/register-materialx-target.ms
new file mode 100644
index 0000000..6268b8c
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/register-materialx-target.ms
@@ -0,0 +1,13 @@
+(
+    -- Look for the usd plug-in
+    findUSD = false
+    for i = 1 to pluginManager.pluginDllCount do ( 
+        if (pluginManager.pluginDllName i) == "usdexport.dle" then findUSD = true
+    )
+
+    if findUSD then
+    (
+        pyMaxUsd = python.import("maxUsd")
+        pyMaxUsd.ShadingModeRegistry.RegisterExportConversion "MaterialX" "mtlx" "MaterialX" "Export USD assets referencing MaterialX material targets."
+    )
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/registerPlugin.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/registerPlugin.ms
new file mode 100644
index 0000000..b15c2ff
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/materialx/registerPlugin.ms
@@ -0,0 +1,29 @@
+(
+    -- Look for the usd plug-in
+   findUSD = false
+   for i = 1 to pluginManager.pluginDllCount do ( 
+       if (pluginManager.pluginDllName i) == "usdexport.dle" then findUSD = true
+   )
+
+   if findUSD then
+   (
+       pyUsdPlug = python.import("pxr.Plug")
+       
+       function addMatXShaderWriterPlugin = 
+       (
+           pysys = python.import("sys")
+           pyos = python.import("os")
+       
+           scriptPath = getThisScriptFilename()
+           pluginPath = pathConfig.removePathLeaf scriptPath
+           pluginPath = pluginPath + "\\plugInfo.json"
+           -- The plugin script location must part of the Python path
+           pysys.path.insert 0 (pathConfig.removePathLeaf pluginPath)
+       
+           plugRegistry = pyUsdPlug.Registry()
+           plugRegistry.RegisterPlugins pluginPath
+       )
+       
+       addMatXShaderWriterPlugin()
+   )
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/plugInfo.json b/src/ApplicationPlugins/usd-component/Contents/scripts/plugInfo.json
new file mode 100644
index 0000000..51c12ee
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/plugInfo.json
@@ -0,0 +1,5 @@
+{
+    "Includes": [
+        "materials/"
+    ]
+}
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-plugin-paths.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-plugin-paths.ms
new file mode 100644
index 0000000..c1e39eb
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-plugin-paths.ms
@@ -0,0 +1,43 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+/*
+ * Registers the 3ds Max usd plugin paths to USD Plug Registry
+ * so that max users can use the usd plugins out of the box.
+*/
+(
+
+pyUsdPlug = python.import("pxr.Plug")
+
+function addUsdPluginPaths = 
+(
+	scriptPath = getThisScriptFilename()
+	componentPath = pathConfig.removePathLeaf (pathConfig.removePathLeaf scriptPath)
+	plugRegistry = pyUsdPlug.Registry()
+
+	pluginPaths = #(
+		"plugin\\MaxUsd_Translators",
+		"plugin\\BasePxrUsdPreviewSurface",
+		"scripts"
+	)
+	for pluginPath in pluginPaths do (
+		fullPluginPath = pathConfig.appendPath componentPath pluginPath
+		plugRegistry.RegisterPlugins fullPluginPath
+	)
+)
+
+addUsdPluginPaths()
+
+)
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-python-runtime.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-python-runtime.ms
new file mode 100644
index 0000000..2e9a6c2
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/register-usd-python-runtime.ms
@@ -0,0 +1,89 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Appends usd python bindings to max's python path
+ * so that max users can use the usd python out of the box.
+*/
+(
+
+function getUsdImporterPluginIndex =
+(
+	for i = 1 to pluginManager.pluginDllCount do ( 
+		if (pluginManager.pluginDllName i) == "usdimport.dli" then return i
+	)
+	return -1;
+)
+
+function addUsdToPythonPath = 
+(
+	pluginIndex = getUsdImporterPluginIndex()
+	pluginPath = pluginManager.pluginDllDirectory pluginIndex
+	-- In versions < 2023, pluginManager.pluginDllDirectory would return the plugin's dll 
+	-- path and not the directory, this issue was since fixed.
+	if (getFilenameType pluginPath) != "" do (
+		pluginPath = pathConfig.removePathLeaf pluginPath
+	)
+	usdPythonPath = pathConfig.appendPath pluginPath "python"
+
+	--need to add the pluginPath itself (bin folder) for the python imports to work properly
+	pysys = python.import("sys")
+	pyos = python.import("os")
+
+	if pysys.version_info[1] == 3 and not pysys.version_info[2] < 8 then (
+		pyos.add_dll_directory(pluginPath)
+	) else (
+		pyos.environ["PATH"] = pluginPath + pyos.pathsep + pyos.environ["PATH"]
+	)
+
+	--need to add usdPluginsPath to PATH for usd plugins dlls to load properly
+	usdPluginsPath = pathConfig.appendPath (pathConfig.removePathLeaf pluginPath) "plugin\\usd"
+	if pysys.version_info[1] == 3 and not pysys.version_info[2] < 8 then (
+		pyos.add_dll_directory(usdPluginsPath)
+	) else (
+		pyos.environ["PATH"] = usdPluginsPath + pyos.pathsep + pyos.environ["PATH"]
+	)
+
+	if pysys.path.__contains__(usdPythonPath) then (
+		return false
+	) else (
+		if doesFileExist usdPythonPath then (
+			--favor prepend because we currently do not want users to override the path by mistake when setting PYTHONPATH
+			pysys.path.insert 0 usdPythonPath
+		) else (
+			logsystem.logEntry ("Could not find usd python path at " + usdPythonPath) broadcast:true warning:true
+		)
+	)
+	
+	local mtlxLibPathEnvVar = undefined
+	maxver = maxversion()
+	if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up use USD 22.11+ env var name has changed in later versions.
+		mtlxLibPathEnvVar = "PXR_MTLX_STDLIB_SEARCH_PATHS"
+	) else (
+		mtlxLibPathEnvVar = "PXR_USDMTLX_STDLIB_SEARCH_PATHS"
+	)
+
+	usdMtlXLibPath = pathConfig.appendPath pluginPath "..\\libraries"
+	if pyos.environ[mtlxLibPathEnvVar] == undefined then (
+		pyos.environ[mtlxLibPathEnvVar] = usdMtlXLibPath
+	) else (
+		pyos.environ[mtlxLibPathEnvVar] = usdMtlXLibPath + pyos.pathsep + pyos.environ[mtlxLibPathEnvVar]
+	)
+)
+
+addUsdToPythonPath()
+
+)
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.mcr b/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.mcr
new file mode 100644
index 0000000..eb45a0a
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.mcr
@@ -0,0 +1,22 @@
+/**********************************************************************
+// Copyright 2022 Autodesk, Inc.  All rights reserved. 
+**********************************************************************/
+--this script adds the macro action for USD Stage menu item.
+
+macroScript CreateUSDStage category:"USD" buttonText:~USD_STAGE_MENU_ITEM~ tooltip:~USD_STAGE_TOOLTIP~
+(
+	result = USDStageObject.SelectRootLayerAndPrim filterMode:#exclude filteredTypes:#( "Material" , "Shader" , "GeomSubset" ) useUserSettings:true
+	if result != undefined then 
+	(
+		stageObject = USDStageObject()
+		stageObject.SetRootLayer result[1] stageMask:result[2] payloadsLoaded:result[3]
+		if (result[4]) do (
+			stageObject.OpenInUsdExplorer()
+		)
+	)
+)
+
+macroScript OpenUsdExplorer category:"USD" buttonText:~USD_EXPLORER_MENU_ITEM~ tooltip:~USD_EXPLORER_MENU_ITEM~
+(
+	USDStageObject.OpenUsdExplorer()
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.ms
new file mode 100644
index 0000000..c36f4e5
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/registerMenu.ms
@@ -0,0 +1,148 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+--this script adds the USD Stage menu item to the File->Reference menu.
+
+--Finds the "targetMenuName" menu entry inside the "menuToSearch", returns true if the menu was found.
+fn findMenuEntry menuToSearch targetMenuName &referenceMenuItemIdx = (
+	
+	if menuToSearch != undefined then 
+	(
+		local menuItemCount = menuToSearch.numItems()
+		for i = 1 to menuItemCount do
+		(
+			local curItem = menuToSearch.getItem i
+			local curItemTitle = curItem.getTitle()
+			
+			if ( curItemTitle == targetMenuName ) then
+			(
+				referenceMenuItemIdx = i
+				return true
+			)
+		)
+	)
+	
+	return false
+)
+
+fn addUSDStageReferenceMenuItem = (
+
+	local referenceMenuFound = false
+	local referenceMenuItemIdx = -1
+	local referenceMenu = undefined
+	mainFileMenu = menuMan.findMenu ~FILE_MENU_MAIN~
+	referenceMenuFound = findMenuEntry mainFileMenu ~REFERENCE_MENU_ITEM~ &referenceMenuItemIdx
+	
+	if referenceMenuFound then
+	(
+		referenceMenu = mainFileMenu.getItem referenceMenuItemIdx
+		referenceMenu = referenceMenu.getSubMenu()
+		
+		local USDStageItemIdx = -1
+		local USDStageItemFound = findMenuEntry referenceMenu ~USD_STAGE_MENU_ITEM~ &USDStageItemIdx
+		
+		if not USDStageItemFound then 
+		(
+			-- create a menu items that calls the macroscript
+			local theMenuItem = menuMan.createActionItem "CreateUSDStage" "USD"
+			theMenuItem.setTitle ~USD_STAGE_MENU_ITEM~
+			theMenuItem.setUseCustomTitle true
+			referenceMenu.addItem theMenuItem -1
+			
+			-- redraw the menu bar with the new item
+			menuMan.updateMenuBar()
+		)
+	)
+)
+
+fn removeUSDStageReferenceMenuItem = (
+
+	local referenceMenuFound = false
+	local referenceMenuItemIdx = -1
+	local referenceMenu = undefined
+	mainFileMenu = menuMan.findMenu ~FILE_MENU_MAIN~
+	referenceMenuFound = findMenuEntry mainFileMenu ~REFERENCE_MENU_ITEM~ &referenceMenuItemIdx
+	
+	if referenceMenuFound then
+	(
+		referenceMenu = mainFileMenu.getItem referenceMenuItemIdx
+		referenceMenu = referenceMenu.getSubMenu()
+		
+		local USDStageItemIdx = -1
+		local USDStageItemFound = findMenuEntry referenceMenu ~USD_STAGE_MENU_ITEM~ &USDStageItemIdx
+		
+		if USDStageItemFound then 
+		(
+			referenceMenu.removeItemByPosition USDStageItemIdx
+		)
+	)
+)
+
+fn addUSDMenuItem = (
+	toolsMenu = menuMan.findMenu ~TOOLS_MENU_ITEM~
+	if toolsMenu != undefined then
+	(
+		local USDItemIdx = -1
+		local USDItemFound = findMenuEntry toolsMenu "USD" &USDItemIdx
+	
+		if not USDItemFound then 
+		(
+			usdMenu = menuMan.createMenu "USD"
+			
+			-- create a menu items that calls the macroscript
+			local theMenuItem = menuMan.createActionItem "OpenUsdExplorer" "USD"
+			theMenuItem.setTitle ~USD_EXPLORER_MENU_ITEM~
+			theMenuItem.setUseCustomTitle true
+			usdMenu.addItem theMenuItem -1
+			subMenuItem = menuMan.createsubMenuItem "USD" usdMenu
+			
+			toolsMenu.addItem (menuMan.createSeparatorItem()) -1
+			toolsMenu.addItem subMenuItem -1
+			
+			-- redraw the menu bar with the new item
+			menuMan.updateMenuBar()
+		)
+	)	
+)
+
+fn removeUSDMenuItem = (
+	toolsMenu = menuMan.findMenu ~TOOLS_MENU_ITEM~
+	local USDItemIdx = -1
+	local USDItemFound = findMenuEntry toolsMenu "USD" &USDItemIdx
+	if USDItemFound then 
+	(
+		toolsMenu.removeItemByPosition USDItemIdx
+	)
+)
+
+function addUSDMenus = (
+	addUSDStageReferenceMenuItem()
+	addUSDMenuItem()	
+)
+
+function removeUSDMenus = (
+	removeUSDStageReferenceMenuItem()
+	removeUSDMenuItem()	
+)
+
+--add a callback to that whenever a menu file is loaded, such as during theme or workspace loading, we add potentially missing entries
+callbacks.addScript #postLoadingMenus "addUSDMenus()" id:#USDMenuEntryPostLoad
+--remove ourself from the menu, we don't want to be saved
+callbacks.addScript #preSavingMenus "removeUSDMenus()" id:#USDMenuEntryRemoval
+--add ourself again when the saving is done
+callbacks.addScript #postSavingMenus "addUSDMenus()" id:#USDMenuEntryRemoval
+--call the function once to handle first load, because menus are loaded before startup scripts and the callback won't trip
+addUSDMenus()
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/Contents/scripts/usd-python-scripts.ms b/src/ApplicationPlugins/usd-component/Contents/scripts/usd-python-scripts.ms
new file mode 100644
index 0000000..e2a9db0
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/Contents/scripts/usd-python-scripts.ms
@@ -0,0 +1,42 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+/*
+ * Appends usd python scripts ptah to max's python path
+*/
+(
+
+function insertScriptsToSysPath = 
+(    
+    local script_file = getSourceFileName()
+    local script_path = substituteString (getFilenamePath(script_file)) "\\" "/"
+    local pysys = python.import("sys")
+
+    if pysys.path.__contains__(script_path) then (
+        return false
+    ) else (
+        if doesFileExist script_path then (
+            --favor prepend because we currently do not want users to override the path by mistake when setting PYTHONPATH
+            pysys.path.insert 0 script_path
+            pysys.path.insert 0 (script_path+"/materials")
+        ) else (
+            logsystem.logEntry ("Could not find usd python path at " + script_path) broadcast:true warning:true
+        )
+    )
+)
+
+insertScriptsToSysPath()
+)
\ No newline at end of file
diff --git a/src/ApplicationPlugins/usd-component/PackageContents.xml b/src/ApplicationPlugins/usd-component/PackageContents.xml
new file mode 100644
index 0000000..6e194cb
--- /dev/null
+++ b/src/ApplicationPlugins/usd-component/PackageContents.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- IMPORTANT: Note that the "patch" segment of "AppVersion" and "FriendlyVersion" are set by the build environment. -->
+<ApplicationPackage SchemaVersion="1.0"
+    ProductType="Application"
+    AutodeskProduct="3ds Max"
+    Name="USD for 3ds Max"
+    Description="Autodesk USD for 3ds Max"
+    AppVersion="0.9.0"
+    FriendlyVersion="0.9.0"
+    HelpFile="./Contents/Help/en-US/index.html"
+    SupportedLocales="Enu"
+    AppNameSpace="appstore.exchange.autodesk.com"
+    Author="Autodesk, Inc."
+    ProductCode="*"
+    UpgradeCode="{637EC730-XXXX-4D5B-B7C9-5F93E12D577F}">
+
+    <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+
+    <CompanyDetails Name="Autodesk, Inc." Url="www.autodesk.com" Email="me.support@autodesk.com" />
+
+    <Components Description="plugins parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/Bin/USDImport.dli" />
+        <ComponentEntry ModuleName="./Contents/Bin/USDExport.dle" />
+        <ComponentEntry ModuleName="./Contents/Bin/MaxUsdObjects.dlo" />
+    </Components>
+    <Components Description="pre-start-up scripts parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/scripts/register-usd-python-runtime.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/usd-python-scripts.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/materials/USDMaterialAttributeHolder.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/materials/UsdPreviewSurface.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/register-usd-plugin-paths.ms" />
+    </Components>
+    <Components Description="macroscripts parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/scripts/registerMenu.mcr" />
+        <ComponentEntry ModuleName="./Contents/scripts/materials/UsdMaterialAttributeMacro.mcr" />
+    </Components>
+    
+    <!--Embedded MaterialX plugin-->
+    <Components Description="osl folders parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/MaterialX_plugin/Contents/OSL/" />
+        </Components>
+    <Components Description="plugins parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/MaterialX_plugin/Contents/bin/MaterialXIO.dlu" />
+    </Components>
+    <Components Description="post-start-up scripts parts">
+        <RuntimeRequirements OS="Win64" Platform="3ds Max" SeriesMin="2022" SeriesMax="2026" />
+        <ComponentEntry ModuleName="./Contents/MaterialX_plugin/Contents/scripts/MtlxMaterial.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/materialx/register-materialx-target.ms" />
+        <ComponentEntry ModuleName="./Contents/scripts/materialx/registerPlugin.ms" />
+    </Components>
+</ApplicationPackage>
diff --git a/src/DependencyPathOverrides.props b/src/DependencyPathOverrides.props
new file mode 100644
index 0000000..29918ed
--- /dev/null
+++ b/src/DependencyPathOverrides.props
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+	xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+	<PropertyGroup Label="DependencyPaths">
+		<!-- The path location for the 'MaxSDK' folder -->
+		<MaxSDK></MaxSDK>
+		<!-- The path for the Qt version from QtVsTools (aka 'Qt Installation') -->
+		<QtInstall></QtInstall>
+		<!-- The path location for the 'googletest' folder
+		     (the path where the lib/bin/include folders are located) -->
+		<GoogleTestDir></GoogleTestDir>
+		<!-- The path location for the 3ds Max MaterialX material plugin folder (optional) -->
+		<MaterialXDir></MaterialXDir>
+		<!-- The path location where the 'OpenGL' Python module (PyOpenGL) folder
+		     This could be in "%APPDATA%\Python\Python3xx\site-packages" -->
+		<PyOpenGLDir></PyOpenGLDir>
+		<!-- The path location for the 3ds Max USD 'devkit' -->
+		<MaxUsdDevKit></MaxUsdDevKit>
+		<!-- The following paths are usually found inside the 'devkit' folder.
+		     If you are using the 'devkit' as-is, there is no need to define those paths -->
+		<!-- The path location for 'spdlog' include folder -->
+		<SpdlogInc></SpdlogInc>
+		<!-- The path location for the 'PySide6' Python module -->
+		<PySideDir></PySideDir>
+		<!-- The path location for the 'shiboken6' Python module 
+		     Expected to be at the same level of 'shiboken6_generator' Python module-->
+		<PySideShibokenDir></PySideShibokenDir>
+		<!-- The path location for the 'Python' folder -->
+		<PythonLocation></PythonLocation>
+		<!-- The path location for the 'Ufe' include folder -->
+		<UfeInc></UfeInc>
+		<!-- The path location for the 'Ufe' lib folder -->
+		<UfeLib></UfeLib>
+		<!-- The path location for the 'UsdUfe' folder -->
+		<UsdUfeDir></UsdUfeDir>
+		<!-- The path location for the 'OpenUSD' folder -->
+		<PxrUsdRoot></PxrUsdRoot>
+		<!-- The following paths are usually found inside the 'OpenUSD' folder.
+		     The 3ds Max USD component solution is configured by default to define
+		     the following paths using the 'OpenUSD' folder (the 'PxrUsdRoot' definition above).
+		     Those definitions can be overriden over the defaults if required. -->
+		<!-- The path location for the 'TBB' folder -->
+		<TBBDir></TBBDir>
+		<!-- The path location for the 'Boost' include folder -->
+		<BoostInc></BoostInc>
+		<!-- The path location for the 'Boost' lib folder -->
+		<BoostLib></BoostLib>
+	</PropertyGroup>
+</Project>
diff --git a/src/MaxUsd.h b/src/MaxUsd.h
new file mode 100644
index 0000000..63884c0
--- /dev/null
+++ b/src/MaxUsd.h
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <USDComponentVersionNumber.h>
+
+// MaxUsd public namespace string will never change.
+#define MAXUSD_NS MaxUsd
+// C preprocessor trickery to expand arguments.
+#define MAXUSD_CONCAT(A, B) MAXUSD_CONCAT_IMPL(A, B)
+#define MAXUSD_CONCAT_IMPL(A, B) A##B
+// Versioned namespace includes the major version number.
+#define MAXUSD_VERSIONED_NS MAXUSD_CONCAT(MAXUSD_NS, MAXUSD_CONCAT(_v,COMPONENT_VERSION_MAJOR))
+
+namespace MAXUSD_VERSIONED_NS {}
+
+// With a using namespace declaration, pull in the versioned namespace into the
+// MaxUsd public namespace, to allow client code to use the plain MaxUsd
+// namespace, e.g. MaxUsd::Class.
+namespace MAXUSD_NS {
+    using namespace MAXUSD_VERSIONED_NS;
+}
+
+// Macro to place the MaxUsd symbols in the versioned namespace, which is how
+// they will appear in the shared library, e.g. MaxUsd_v1::Class.
+#ifdef DOXYGEN
+#define MAXUSD_NS_DEF MAXUSD_NS
+#else
+#define MAXUSD_NS_DEF MAXUSD_VERSIONED_NS
+#endif
\ No newline at end of file
diff --git a/src/MaxUsd/Builders/JobContextRegistry.cpp b/src/MaxUsd/Builders/JobContextRegistry.cpp
new file mode 100644
index 0000000..8239c68
--- /dev/null
+++ b/src/MaxUsd/Builders/JobContextRegistry.cpp
@@ -0,0 +1,244 @@
+//
+// Copyright 2022 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "JobContextRegistry.h"
+
+#include <MaxUsd/DebugCodes.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+
+#include <pxr/base/tf/debug.h>
+#include <pxr/base/tf/instantiateSingleton.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+
+#include <string>
+#include <unordered_set>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    (MaxUsd)
+        (JobContextPlugin)
+);
+// clang-format on
+
+namespace {
+static const TfTokenVector PLUGIN_SCOPE = { _tokens->MaxUsd, _tokens->JobContextPlugin };
+} // namespace
+
+namespace {
+struct _HashInfo
+{
+    size_t operator()(const MaxUsdJobContextRegistry::ContextInfo& info) const noexcept
+    {
+        return info.jobContext.Hash();
+    }
+};
+
+struct _EqualInfo
+{
+    bool operator()(
+        const MaxUsdJobContextRegistry::ContextInfo& lhs,
+        const MaxUsdJobContextRegistry::ContextInfo& rhs) const noexcept
+    {
+        return rhs.jobContext == lhs.jobContext;
+    }
+};
+
+using _JobContextRegistry
+    = std::unordered_set<MaxUsdJobContextRegistry::ContextInfo, _HashInfo, _EqualInfo>;
+static _JobContextRegistry _jobContextReg;
+} // namespace
+
+void MaxUsdJobContextRegistry::RegisterExportJobContext(
+    const std::string& jobContext,
+    const std::string& niceName,
+    const std::string& description,
+    EnablerFn          enablerFct,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY).Msg("Registering export job context %s.\n", jobContext.c_str());
+    TfToken     key(jobContext);
+    ContextInfo newInfo { key, TfToken(niceName), TfToken(description), enablerFct };
+    auto        itFound = _jobContextReg.find(newInfo);
+    if (itFound == _jobContextReg.end()) {
+        _jobContextReg.insert(newInfo);
+        MaxUsd_RegistryHelper::AddUnloader(
+            [key]() {
+                ContextInfo toErase { key };
+                _jobContextReg.erase(toErase);
+            },
+            fromPython);
+    } else {
+        if (!itFound->exportEnablerCallback) {
+            if (niceName != itFound->niceName) {
+                TF_CODING_ERROR(
+                    "Export enabler has differing nice name: %s != %s",
+                    niceName.c_str(),
+                    itFound->niceName.GetText());
+            }
+            // Keep the import part, fill in the export part:
+            ContextInfo updatedInfo { key,
+                                      itFound->niceName,
+                                      TfToken(description),
+                                      enablerFct,
+                                      {},
+                                      itFound->importDescription,
+                                      itFound->importEnablerCallback,
+                                      itFound->importOptionsCallback };
+            _jobContextReg.erase(updatedInfo);
+            _jobContextReg.insert(updatedInfo);
+        } else {
+            TF_CODING_ERROR("Multiple enablers for export job context %s", jobContext.c_str());
+        }
+    }
+}
+
+void MaxUsdJobContextRegistry::SetExportOptionsUI(
+    const std::string& jobContext,
+    OptionsFn          optionsFct,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY)
+        .Msg("Registering export options ui callback for job context %s.\n", jobContext.c_str());
+    TfToken key(jobContext);
+
+    ContextInfo searchInfo { key };
+    auto        itFound = _jobContextReg.find(searchInfo);
+    if (itFound != _jobContextReg.end()) {
+        ContextInfo updatedInfo { key,
+                                  itFound->niceName,
+                                  itFound->exportDescription,
+                                  itFound->exportEnablerCallback,
+                                  optionsFct,
+                                  itFound->importDescription,
+                                  itFound->importEnablerCallback,
+                                  itFound->importOptionsCallback };
+        _jobContextReg.erase(updatedInfo);
+        _jobContextReg.insert(updatedInfo);
+    } else {
+        TF_CODING_ERROR("No export job context found named %s", jobContext.c_str());
+    }
+}
+
+void MaxUsdJobContextRegistry::RegisterImportJobContext(
+    const std::string& jobContext,
+    const std::string& niceName,
+    const std::string& description,
+    EnablerFn          enablerFct,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY).Msg("Registering import job context %s.\n", jobContext.c_str());
+    TfToken     key(jobContext);
+    ContextInfo newInfo { key, TfToken(niceName), {}, {}, {}, TfToken(description), enablerFct };
+    auto        itFound = _jobContextReg.find(newInfo);
+    if (itFound == _jobContextReg.end()) {
+        _jobContextReg.insert(newInfo);
+        MaxUsd_RegistryHelper::AddUnloader(
+            [key]() {
+                ContextInfo toErase { key };
+                _jobContextReg.erase(toErase);
+            },
+            fromPython);
+    } else {
+        if (!itFound->importEnablerCallback) {
+            if (niceName != itFound->niceName) {
+                TF_CODING_ERROR(
+                    "Import enabler has differing nice name: %s != %s",
+                    niceName.c_str(),
+                    itFound->niceName.GetText());
+            }
+            // Keep the export part, fill in the import part:
+            ContextInfo updatedInfo { key,
+                                      itFound->niceName,
+                                      itFound->exportDescription,
+                                      itFound->exportEnablerCallback,
+                                      itFound->exportOptionsCallback,
+                                      TfToken(description),
+                                      enablerFct };
+            _jobContextReg.erase(updatedInfo);
+            _jobContextReg.insert(updatedInfo);
+        } else {
+            TF_CODING_ERROR("Multiple enablers for import job context %s", jobContext.c_str());
+        }
+    }
+}
+
+void MaxUsdJobContextRegistry::SetImportOptionsUI(
+    const std::string& jobContext,
+    OptionsFn          optionsFct,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY)
+        .Msg("Registering import options ui callback for job context %s.\n", jobContext.c_str());
+    TfToken key(jobContext);
+
+    ContextInfo searchInfo { key };
+    auto        itFound = _jobContextReg.find(searchInfo);
+    if (itFound != _jobContextReg.end()) {
+        ContextInfo updatedInfo { key,
+                                  itFound->niceName,
+                                  itFound->exportDescription,
+                                  itFound->exportEnablerCallback,
+                                  itFound->exportOptionsCallback,
+                                  itFound->importDescription,
+                                  itFound->importEnablerCallback,
+                                  optionsFct };
+        _jobContextReg.erase(updatedInfo);
+        _jobContextReg.insert(updatedInfo);
+    } else {
+        TF_CODING_ERROR("No import job context found named %s", jobContext.c_str());
+    }
+}
+
+TfTokenVector MaxUsdJobContextRegistry::_ListJobContexts()
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdJobContextRegistry>();
+    TfTokenVector ret;
+    ret.reserve(_jobContextReg.size());
+    for (const auto& e : _jobContextReg) {
+        ret.push_back(e.jobContext);
+    }
+    return ret;
+}
+
+const MaxUsdJobContextRegistry::ContextInfo&
+MaxUsdJobContextRegistry::_GetJobContextInfo(const TfToken& jobContext)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdJobContextRegistry>();
+    ContextInfo              key { jobContext, {}, {}, {}, {}, {} };
+    auto                     it = _jobContextReg.find(key);
+    static const ContextInfo _emptyInfo;
+    return it != _jobContextReg.end() ? *it : _emptyInfo;
+}
+
+TF_INSTANTIATE_SINGLETON(MaxUsdJobContextRegistry);
+
+MaxUsdJobContextRegistry& MaxUsdJobContextRegistry::GetInstance()
+{
+    return TfSingleton<MaxUsdJobContextRegistry>::GetInstance();
+}
+
+MaxUsdJobContextRegistry::MaxUsdJobContextRegistry() { }
+
+MaxUsdJobContextRegistry::~MaxUsdJobContextRegistry() { }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Builders/JobContextRegistry.h b/src/MaxUsd/Builders/JobContextRegistry.h
new file mode 100644
index 0000000..51a648d
--- /dev/null
+++ b/src/MaxUsd/Builders/JobContextRegistry.h
@@ -0,0 +1,179 @@
+//
+// Copyright 2022 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/declarePtrs.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/singleton.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/tf/weakBase.h>
+#include <pxr/base/vt/dictionary.h>
+#include <pxr/pxr.h>
+
+#include <string>
+
+class QWidget;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DECLARE_WEAK_PTRS(MaxUsdJobContextRegistry);
+
+/// We provide macros that are entry points into the job context logic.
+class MaxUsdJobContextRegistry : public TfWeakBase
+{
+public:
+    /// An job context basically wraps a function that tweaks the set of import/export options. This
+    /// job context has a name and UI components, as well as an enabler function that allows
+    /// specifying the options dictionary.
+    ///
+    /// To register an export job context, you need to use the REGISTER_EXPORT_JOB_CONTEXT macro for
+    /// each export job context supported by the library.
+    ///
+    /// In order for the core system to discover the plugin, you need a \c plugInfo.json that
+    /// declares job contexts. \code
+    /// {
+    ///   "Plugins": [
+    ///     {
+    ///       "Info": {
+    ///         "MaxUsd": {
+    ///          "JobContextPlugin": {
+    ///          }
+    ///         }
+    ///       },
+    ///       "Name": "myUsdPlugin",
+    ///       "LibraryPath": "../myUsdPlugin.dll",
+    ///       "Type": "library"
+    ///     }
+    ///   ]
+    /// }
+    /// \endcode
+
+    /// Enabler function, returns a dictionary containing all the options for the context.
+    using EnablerFn = std::function<VtDictionary()>;
+    using OptionsFn = std::function<VtDictionary(std::string, QWidget*, const VtDictionary&)>;
+
+    /// Get all registered export job contexts:
+    static TfTokenVector ListJobContexts() { return GetInstance()._ListJobContexts(); }
+
+    /// All the information registered for a specific job context.
+    struct ContextInfo
+    {
+        TfToken   jobContext;
+        TfToken   niceName;
+        TfToken   exportDescription;
+        EnablerFn exportEnablerCallback;
+        OptionsFn exportOptionsCallback;
+        TfToken   importDescription;
+        EnablerFn importEnablerCallback;
+        OptionsFn importOptionsCallback;
+    };
+
+    /// Gets the conversion information associated with \p jobContext on export and import
+    static const ContextInfo& GetJobContextInfo(const TfToken& jobContext)
+    {
+        return GetInstance()._GetJobContextInfo(jobContext);
+    }
+
+    /// Registers an export job context, with nice name, description and enabler function.
+    ///
+    /// \param jobContext name will be used directly as one of the valid values of the job context option.
+    /// \param niceName is the name displayed in the options dialog.
+    /// \param description is displayed as a tooltip in the  options dialog.
+    /// \param enablerFct will be called after option parsing to enable context specific options.
+    MaxUSDAPI void RegisterExportJobContext(
+        const std::string& jobContext,
+        const std::string& niceName,
+        const std::string& description,
+        EnablerFn          enablerFct,
+        bool               fromPython = false);
+
+    /// Registers an export job context ui option callback.
+    ///
+    /// \param jobContext the name of the registered job context.
+    /// \param optionsFct will be called after the user hits the option button in the USD export UI.
+    MaxUSDAPI void SetExportOptionsUI(
+        const std::string& jobContext,
+        OptionsFn          optionsFct,
+        bool               fromPython = false);
+
+    /// Registers an import job context, with nice name, description and enabler function.
+    ///
+    /// \param jobContext name will be used directly as one of the valid values of the job context option.
+    /// \param niceName is the name displayed in the options dialog.
+    /// \param description is displayed as a tooltip in the  options dialog.
+    /// \param enablerFct will be called after option parsing to enable context specific options.
+    MaxUSDAPI void RegisterImportJobContext(
+        const std::string& jobContext,
+        const std::string& niceName,
+        const std::string& description,
+        EnablerFn          enablerFct,
+        bool               fromPython = false);
+
+    /// Registers an import job context ui option callback.
+    ///
+    /// \param jobContext the name of the registered job context.
+    /// \param optionsFct will be called after the user hits the option button in the USD import UI.
+    MaxUSDAPI void SetImportOptionsUI(
+        const std::string& jobContext,
+        OptionsFn          optionsFct,
+        bool               fromPython = false);
+
+    MaxUSDAPI static MaxUsdJobContextRegistry& GetInstance();
+
+private:
+    MaxUSDAPI TfTokenVector      _ListJobContexts();
+    MaxUSDAPI const ContextInfo& _GetJobContextInfo(const TfToken&);
+
+    MaxUsdJobContextRegistry();
+    ~MaxUsdJobContextRegistry();
+    friend class TfSingleton<MaxUsdJobContextRegistry>;
+};
+
+#define REGISTER_EXPORT_JOB_CONTEXT(name, niceName, description, enablerFct) \
+    TF_REGISTRY_FUNCTION(MaxUsdJobContextRegistry)                           \
+    {                                                                        \
+        MaxUsdJobContextRegistry::GetInstance().RegisterExportJobContext(    \
+            name, niceName, description, enablerFct);                        \
+    }
+
+#define REGISTER_EXPORT_JOB_CONTEXT_FCT(name, niceName, description)         \
+    static VtDictionary _ExportJobContextEnabler_##name();                   \
+    TF_REGISTRY_FUNCTION(MaxUsdJobContextRegistry)                           \
+    {                                                                        \
+        MaxUsdJobContextRegistry::GetInstance().RegisterExportJobContext(    \
+            #name, niceName, description, &_ExportJobContextEnabler_##name); \
+    }                                                                        \
+    VtDictionary _ExportJobContextEnabler_##name()
+
+#define REGISTER_IMPORT_JOB_CONTEXT(name, niceName, description, enablerFct) \
+    TF_REGISTRY_FUNCTION(MaxUsdJobContextRegistry)                           \
+    {                                                                        \
+        MaxUsdJobContextRegistry::GetInstance().RegisterImportJobContext(    \
+            name, niceName, description, enablerFct);                        \
+    }
+
+#define REGISTER_IMPORT_JOB_CONTEXT_FCT(name, niceName, description)         \
+    static VtDictionary _ImportJobContextEnabler_##name();                   \
+    TF_REGISTRY_FUNCTION(MaxUsdJobContextRegistry)                           \
+    {                                                                        \
+        MaxUsdJobContextRegistry::GetInstance().RegisterImportJobContext(    \
+            #name, niceName, description, &_ImportJobContextEnabler_##name); \
+    }                                                                        \
+    VtDictionary _ImportJobContextEnabler_##name()
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Builders/MaxSceneBuilder.cpp b/src/MaxUsd/Builders/MaxSceneBuilder.cpp
new file mode 100644
index 0000000..08611fd
--- /dev/null
+++ b/src/MaxUsd/Builders/MaxSceneBuilder.cpp
@@ -0,0 +1,390 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "MaxSceneBuilder.h"
+
+#include <MaxUsd/Chaser/ImportChaserRegistry.h>
+#include <MaxUsd/DLLEntry.h>
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/ShadingModeImporter.h>
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+#include <MaxUsd/Utilities/MaxProgressBar.h>
+#include <MaxUsd/Utilities/MetaDataUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <MaxUsd/Utilities/UiUtils.h>
+#include <MaxUsd/resource.h>
+
+#include <iInstanceMgr.h> // for IInstanceMgr::GetAutoMtlPropagation()
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+namespace MAXUSD_NS_DEF {
+
+MaxSceneBuilder::MaxSceneBuilder() = default;
+
+bool MaxSceneBuilder::ExcludedPrimNode(UsdPrimRange::iterator& primIt)
+{
+    return primIt->IsA<pxr::UsdGeomSubset>() || primIt->IsA<pxr::UsdShadeMaterial>()
+        || primIt->IsA<pxr::UsdShadeShader>() || primIt->IsA<pxr::UsdShadeNodeGraph>();
+}
+
+void MaxSceneBuilder::DoImportPrimIt(
+    UsdPrimRange::iterator& primIt,
+    MaxUsdReadJobContext&   readCtx,
+    PrimReaderMap&          primReaderMap)
+{
+    const UsdPrim& prim = *primIt;
+
+    // The iterator will hit each prim twice. IsPostVisit tells us if
+    // this is the pre-visit (Read) step or post-visit (PostReadSubtree)
+    // step.
+    if (primIt.IsPostVisit()) {
+        // This is the PostReadSubtree step, if the PrimReader has specified one.
+        auto primReaderIt = primReaderMap.find(prim.GetPath());
+        if (primReaderIt != primReaderMap.end()) {
+            if (primReaderIt->second->HasPostReadSubtree()) {
+                primReaderIt->second->PostReadSubtree();
+            }
+        }
+    } else {
+        // This is the normal Read step (pre-visit).
+        TfToken typeName = prim.GetTypeName();
+        if (MaxUsdPrimReaderRegistry::ReaderFactoryFn factoryFn
+            = MaxUsdPrimReaderRegistry::FindOrFallback(typeName, readCtx.GetArgs(), prim)) {
+            MaxUsdPrimReaderSharedPtr primReader = factoryFn(prim, readCtx);
+            if (primReader) {
+                primReader->Read();
+                primReaderMap[prim.GetPath()] = primReader;
+            }
+            // has the last PrimReader took care of its children, then prune rest of tree branch
+            if (readCtx.GetPruneChildren()) {
+                primIt.PruneChildren();
+                readCtx.SetPruneChildren(false);
+            }
+        }
+    }
+}
+
+void MaxSceneBuilder::DoImportInstanceIt(
+    UsdPrimRange::iterator& primIt,
+    MaxUsdReadJobContext&   readCtx,
+    PrototypeLookupMaps&    prototypeLookupMaps,
+    bool                    insidePrototype)
+{
+    if (primIt.IsPostVisit()) {
+        return;
+    }
+
+    const UsdPrim& prim = *primIt;
+    const UsdPrim  prototype = prim.GetPrototype();
+    if (!prototype) {
+        return;
+    }
+
+    // get instance prototype path
+    const SdfPath prototypePath = prototype.GetPath();
+    // was the prototype already imported previously
+    INode* prototypeNode = readCtx.GetMaxNode(prototypePath, false);
+    if (!prototypeNode) {
+        ImportPrototype(prototype, readCtx, prototypeLookupMaps);
+        prototypeNode = readCtx.GetMaxNode(prototypePath, false);
+        if (!prototypeNode) {
+            MaxUsd::Log::Error(
+                "The prototype node ({0}) could not be found and will not be instanciated. Import "
+                "issue "
+                "should be resolved.",
+                prototypePath.GetString().c_str());
+            return;
+        }
+    }
+
+    // clone prototype as instance
+    INodeTab inputTab, sourceTab, outputTab;
+    Point3   offset(0, 0, 0);
+    inputTab.AppendNode(prototypeNode);
+    GetCOREInterface()->CloneNodes(inputTab, offset, true, NODE_INSTANCE, &sourceTab, &outputTab);
+
+    // Rename the node to remove the automatically prepended number by 3dsMax on clone.
+    INode* createdNode = outputTab[0];
+    createdNode->SetName(MaxUsd::UsdStringToMaxString(prim.GetName()).data());
+    prototypeLookupMaps.prototypeReaderMap[prototypePath]->InstanceCreated(prim, createdNode);
+
+    // if instancing from within a prototype, map the cloned nodes to the reader they originate from
+    if (insidePrototype) {
+        prototypeLookupMaps.nodeToPrototypeMap[createdNode] = prim.GetPath();
+        prototypeLookupMaps.prototypeReaderMap[prim.GetPath()]
+            = prototypeLookupMaps
+                  .prototypeReaderMap[prototypeLookupMaps.nodeToPrototypeMap[sourceTab[0]]];
+    }
+
+    // Add duplicate node to registry.
+    readCtx.RegisterNewMaxRefTargetHandle(prim.GetPath(), createdNode);
+
+    INode* parentNode = readCtx.GetMaxNode(prim.GetParent().GetPath(), false);
+    if (parentNode) {
+        parentNode->AttachChild(createdNode);
+    }
+
+    // Read xformable attributes from the
+    // UsdPrim on to the transform node.
+    MaxUsdTranslatorXformable::Read(prim, createdNode, readCtx);
+
+    // process the cloned node's children
+    // - rename nodes to prototype name
+    // - add nodes to created nodes list
+    // - call InstanceCreated using the proper prototype reader that was used
+    // - keep track of nodes created and their original prototype
+    bool hideCloned = !prototype.IsHidden() && createdNode->IsHidden();
+    int  nbClones = sourceTab.Count();
+    for (int i = nbClones - 1; i > 0;
+         --i) // clones are listed in reverse order traversal - we need depth first
+    {
+        INode* sourceChildNode = sourceTab[i];
+        INode* clonedChildNode = outputTab[i];
+        if (hideCloned) {
+            clonedChildNode->Hide(true);
+        }
+        // for the instance prototype to know from which prototype it comes from
+        auto subInstancePath = prototypeLookupMaps.nodeToPrototypeMap[sourceChildNode];
+        auto instancePrimPath = subInstancePath.ReplacePrefix(prototypePath, primIt->GetPath());
+
+        clonedChildNode->SetName(sourceChildNode->GetName());
+        readCtx.RegisterNewMaxRefTargetHandle(instancePrimPath, clonedChildNode);
+
+        // Read xformable attributes from the
+        // UsdPrim on to the transform node.
+        MaxUsdTranslatorXformable::Read(
+            readCtx.GetStage()->GetPrimAtPath(instancePrimPath), clonedChildNode, readCtx);
+
+        // if instancing from within a prototype, map the cloned nodes to the reader they originate
+        // from
+        if (insidePrototype) {
+            prototypeLookupMaps.nodeToPrototypeMap[clonedChildNode] = instancePrimPath;
+            prototypeLookupMaps.prototypeReaderMap[instancePrimPath]
+                = prototypeLookupMaps
+                      .prototypeReaderMap[prototypeLookupMaps.nodeToPrototypeMap[sourceChildNode]];
+        }
+        prototypeLookupMaps
+            .prototypeReaderMap[prototypeLookupMaps.nodeToPrototypeMap[sourceChildNode]]
+            ->InstanceCreated(readCtx.GetStage()->GetPrimAtPath(instancePrimPath), clonedChildNode);
+    }
+}
+
+void MaxSceneBuilder::ImportPrototype(
+    const UsdPrim&        prototype,
+    MaxUsdReadJobContext& readCtx,
+    PrototypeLookupMaps&  prototypeLookupMaps)
+{
+    PrimReaderMap      primReaderMap;
+    const UsdPrimRange range = UsdPrimRange::PreAndPostVisit(prototype);
+    for (auto primIt = range.begin(); primIt != range.end(); ++primIt) {
+        if (ExcludedPrimNode(primIt)) {
+            continue;
+        }
+        const UsdPrim& prim = *primIt;
+        if (prim.IsInstance()) {
+            DoImportInstanceIt(primIt, readCtx, prototypeLookupMaps, true);
+        } else {
+            DoImportPrimIt(primIt, readCtx, primReaderMap);
+        }
+    }
+    // add to the prototypeReaderMap, the readers that were used to load the prototype
+    prototypeLookupMaps.prototypeReaderMap.insert(primReaderMap.begin(), primReaderMap.end());
+    for (const auto& element : primReaderMap) {
+        prototypeLookupMaps.nodeToPrototypeMap[readCtx.GetMaxNode(element.first, false)]
+            = element.first;
+    }
+}
+
+int MaxSceneBuilder::Build(
+    INode*                        node,
+    const pxr::UsdPrim&           prim,
+    const MaxSceneBuilderOptions& buildOptions,
+    const fs::path&               filename)
+{
+    pxr::UsdStageRefPtr stage = prim.GetStage();
+
+    // Insert the stage in the global cache for the time of the import. Useful so it can be accessed
+    // from callbacks. Removed from the cache using RAII.
+    const MaxUsd::StageCacheScopeGuard stageCacheGuard { stage };
+
+    const auto timeConfig = buildOptions.GetResolvedTimeConfig(stage);
+    const auto startTime = buildOptions.GetStartTimeCode();
+    const auto endTime = buildOptions.GetEndTimeCode();
+
+    std::string timeCodeLogMessage = "Importing at ";
+    switch (buildOptions.GetTimeMode()) {
+    case MaxSceneBuilderOptions::ImportTimeMode::AllRange: {
+        if (startTime != endTime || startTime != 0) {
+            MaxUsd::Log::Warn("A non-default TimeCode is specified, but will be ignored, as the "
+                              "TimeMode property is "
+                              "configured as #AllRange.");
+        }
+        timeCodeLogMessage.append(
+            std::string("#AllRange timeCode : ") + std::to_string(timeConfig.GetStartTimeCode())
+            + " " + std::to_string(timeConfig.GetEndTimeCode()));
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::CustomRange: {
+        timeCodeLogMessage.append(
+            std::string("#CustomRange timeCode : ") + std::to_string(timeConfig.GetStartTimeCode())
+            + " " + std::to_string(timeConfig.GetEndTimeCode()));
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::StartTime: {
+        timeCodeLogMessage.append(
+            std::string("#StartTime timeCode : ") + std::to_string(timeConfig.GetStartTimeCode()));
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::EndTime: {
+        timeCodeLogMessage.append(
+            std::string("#EndTime timeCode : ") + std::to_string(timeConfig.GetEndTimeCode()));
+        break;
+    }
+    default: DbgAssert(_T("Unhandled TimeMode mode type. Importing using default values.")); break;
+    }
+    MaxUsd::Log::Info(timeCodeLogMessage);
+
+    MaxUsdReadJobContext context(buildOptions, stage);
+
+    // We want both pre- and post- visit iterations over the prims in this
+    // method. To do so, iterate over all the root prims of the input range,
+    // and create new PrimRanges to iterate over their subtrees.
+    PrimReaderMap     primReaderMap;
+    auto              predicates = !pxr::UsdPrimIsAbstract && pxr::UsdPrimIsDefined;
+    pxr::UsdPrimRange newPrimRange = pxr::UsdPrimRange::PreAndPostVisit(prim, predicates);
+
+    // Prepare 3ds Max to expose information to the User about the progress of the import:
+    int            currentPrimIndex = 0;
+    MaxProgressBar progressBar(
+        GetString(IDS_IMPORT_PROGRESS_MESSAGE),
+        std::distance(newPrimRange.cbegin(), newPrimRange.cend()));
+    progressBar.SetEnabled(buildOptions.GetUseProgressBar());
+    progressBar.Start();
+
+    IInstanceMgr* pInstanceMgr = IInstanceMgr::GetInstanceMgr();
+    const bool    autoMtlPropagation = pInstanceMgr && pInstanceMgr->GetAutoMtlPropagation();
+    if (autoMtlPropagation) {
+        // temporarily disable auto material propagation
+        pInstanceMgr->SetAutoMtlPropagation(false);
+    }
+
+    PrototypeLookupMaps prototypeLookupMaps;
+    for (auto primIt = newPrimRange.begin(); primIt != newPrimRange.end(); ++primIt) {
+        // Stop the import in its current state if the User chose to cancel it.
+        //
+        // NOTE: This will result in partially-loaded content, which may require additional handling
+        // to make sure the User understands that this may cause side-effects. All the geometry
+        // content should be removed.  However, some non-geometry can still have been imported
+        // (materials, textures, etc.)
+        if (coreInterface->GetCancel()) {
+            bool cancelImport = true;
+
+            // Avoid displaying a blocking dialog if 3ds Max is running in Quiet Mode:
+            if (!coreInterface->GetQuietMode()) {
+                cancelImport = MaxUsd::Ui::AskYesNoQuestion(
+                    GetStdWString(IDS_IMPORT_CANCEL_TEXT),
+                    GetStdWString(IDS_IMPORT_CANCEL_CAPTION));
+            }
+
+            if (cancelImport) {
+                progressBar.Stop();
+                // delete created nodes
+                {
+                    std::vector<INode*> nodes;
+                    context.GetAllCreatedNodes(nodes);
+                    INodeTab newNodes;
+                    newNodes.Insert(0, static_cast<int>(nodes.size()), nodes.data());
+                    GetCOREInterface17()->DeleteNodes(newNodes);
+                }
+                MaxUsd::Log::Info("USD import canceled.");
+                return IMPEXP_CANCEL;
+            }
+            coreInterface->SetCancel(false);
+        }
+
+        if (primIt->IsPseudoRoot() || ExcludedPrimNode(primIt)) {
+            continue;
+        }
+
+        if (primIt->IsInstance()) {
+            DoImportInstanceIt(primIt, context, prototypeLookupMaps);
+        } else {
+            DoImportPrimIt(primIt, context, primReaderMap);
+        }
+
+        // Update the progress bar displayed by 3ds Max to notify the User about the status of the
+        // operation:
+        progressBar.UpdateProgress(currentPrimIndex++);
+    }
+
+    // delete prototype nodes that are now useless
+    std::function<void(INode*)> deleteNode = [&](INode* node) {
+        while (node->NumChildren() > 0) {
+            deleteNode(node->GetChildNode(0));
+        }
+        context.RemoveNode(node);
+        GetCOREInterface17()->DeleteNode(node, false);
+    };
+    auto prototypes = context.GetStage()->GetPrototypes();
+    for (const auto& prototype : prototypes) {
+        const SdfPath prototypePath = prototype.GetPath();
+        INode*        prototypeNode = context.GetMaxNode(prototypePath, false);
+        if (prototypeNode) {
+            deleteNode(prototypeNode);
+        }
+    }
+
+    context.RescaleRegisteredNodes();
+
+    if (autoMtlPropagation) {
+        pInstanceMgr->SetAutoMtlPropagation(true);
+    }
+
+    // Report that we are running chasers...
+    progressBar.UpdateProgress(
+        progressBar.GetTotal(), false, GetString(IDS_IMPORT_CHASERS_PROGRESS_MESSAGE));
+
+    // call chasers
+    // populate the chasers and run post import
+    std::vector<std::pair<std::string, pxr::MaxUsdImportChaserRefPtr>> chasers;
+    pxr::MaxUsdImportChaserRegistry::FactoryContext ctx(predicates, context, filename);
+    // for available chasers to load if not done already
+    pxr::MaxUsdImportChaserRegistry::GetAllRegisteredChasers();
+
+    for (const std::string& chaserName : buildOptions.GetChaserNames()) {
+        if (pxr::MaxUsdImportChaserRefPtr fn
+            = pxr::MaxUsdImportChaserRegistry::Create(chaserName, ctx)) {
+            chasers.push_back(std::make_pair(chaserName, fn));
+        } else {
+            MaxUsd::Log::Error("Failed to create chaser: {0}", chaserName.c_str());
+        }
+    }
+
+    for (const auto& chaser : chasers) {
+        if (chaser.second->PostImport()) {
+            MaxUsd::Log::Info("Successfully executed PostImport() for {0}", chaser.first);
+        } else {
+            MaxUsd::Log::Error("Failed executing PostImport() for {0}", chaser.first);
+        }
+    }
+
+    return IMPEXP_SUCCESS;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Builders/MaxSceneBuilder.h b/src/MaxUsd/Builders/MaxSceneBuilder.h
new file mode 100644
index 0000000..846346e
--- /dev/null
+++ b/src/MaxUsd/Builders/MaxSceneBuilder.h
@@ -0,0 +1,131 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MaxSceneBuilderOptions.h"
+
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+
+#include <pxr/usd/usd/primRange.h>
+
+#include <GetCOREInterface.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief 3ds Max Scene Builder.
+ * \remarks This current implementation is a work-in-progress that will evolve as additional conversion operations
+ * between USD and 3ds Max are supported. Performance of the import process is a design concern, and
+ * while CRTP-type solutions are not (currently) implemented, future work should attempt to
+ * improve/maintain run-time performance while maintaining a high level of flexibility.
+ * \remarks This current implementation moves some of the import logic away from the USDSceneController where it was
+ * previously located. In the process, the import still owns some of the UI/UX import process such
+ * as the handling of 3ds Max's progress bar. Future work should abstract away this behavior, and
+ * expose more control to the caller (e.g. through callbacks, or notifications about the current
+ * state of the import process, etc.).
+ */
+class MaxUSDAPI MaxSceneBuilder
+{
+public:
+    /**
+     * \brief Constructor.
+     */
+    MaxSceneBuilder();
+
+    /**
+     * \brief Destructor.
+     */
+    virtual ~MaxSceneBuilder() = default;
+
+    /**
+     * \brief Start the scene building process.
+     * \param node 3ds Max Node from which to start building the Scene.
+     * \param prim USD Prim from which to start building the Scene.
+     * \param buildOptions Options for the translation of USD content into 3ds Max content.
+     * \param filename The filename of the USD file being used to build to the max scene.
+     * \return IMPEXP_FAIL if failed, IMPEXP_SUCCESS if success and IMPEXP_CANCEL if canceled by user
+     */
+    int Build(
+        INode*                        node,
+        const pxr::UsdPrim&           prim,
+        const MaxSceneBuilderOptions& buildOptions,
+        const fs::path&               filename = "");
+
+protected:
+    typedef std::unordered_map<pxr::SdfPath, pxr::MaxUsdPrimReaderSharedPtr, pxr::SdfPath::Hash>
+        PrimReaderMap;
+    typedef std::unordered_map<INode*, pxr::SdfPath>
+        NodeToPrimMap; // inverse lookup of PrimReaderMap
+    // Structure used to correlate the prototype nodes and their clones to the original prototype
+    // prim they originate from
+    struct PrototypeLookupMaps
+    {
+        PrimReaderMap
+            prototypeReaderMap; // mapping the prototype path to the reader used to import it
+        NodeToPrimMap nodeToPrototypeMap; // mapping 3ds Max Node to the original prototype path it
+                                          // got created from
+    };
+
+    /**
+     * \brief Create the prim's 3ds Max Node.
+     * \param primIt PrimRange iterator on the UsdPrim to import
+     * \param readCtx The read job context being used in the current import job
+     * \param primReaderMap The map between the imported prim path and its reader.
+     */
+    void DoImportPrimIt(
+        pxr::UsdPrimRange::iterator& primIt,
+        pxr::MaxUsdReadJobContext&   readCtx,
+        PrimReaderMap&               primReaderMap);
+
+    /**
+     * \brief Creates the prim's 3ds Max Node instances upon creating first the associated prototype.
+     * \param primIt PrimRange iterator on the UsdPrim to import
+     * \param readCtx The read job context being used in the current import job
+     * \param protypeLookupMaps Maps to correlate the prototype nodes and their clones
+     * to the original prototype prim they originate from
+     * \param insidePrototype Report if instancing from within a prototype
+     */
+    void DoImportInstanceIt(
+        pxr::UsdPrimRange::iterator& primIt,
+        pxr::MaxUsdReadJobContext&   readCtx,
+        PrototypeLookupMaps&         prototypeLookupMaps,
+        bool                         insidePrototype = false);
+
+    /**
+     * \brief Imports the prototype prim (and descendants) and adds it (them) to the read context
+     * \param prototype The prim serving as prototype to import
+     * \param readCtx The read job context being used in the current import job.
+     * \param protypeLookupMaps Maps to correlate the prototype nodes and their clones
+     * to the original prototype prim they originate from.
+     */
+    void ImportPrototype(
+        const pxr::UsdPrim&        prototype,
+        pxr::MaxUsdReadJobContext& readCtx,
+        PrototypeLookupMaps&       protypeLookupMaps);
+
+    /**
+     * \brief Small helper to exclude some prim types from being handled by PrimReaders
+     * \param primIt PrimRange iterator on the UsdPrim to import
+     * \return True if the prim type is to be excluded, false otherwise
+     */
+    bool ExcludedPrimNode(pxr::UsdPrimRange::iterator& primIt);
+
+    /// Reference to the Core Interface to use to interface with 3ds Max:
+    Interface17* coreInterface { GetCOREInterface17() };
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Builders/MaxSceneBuilderOptions.cpp b/src/MaxUsd/Builders/MaxSceneBuilderOptions.cpp
new file mode 100644
index 0000000..620ea75
--- /dev/null
+++ b/src/MaxUsd/Builders/MaxSceneBuilderOptions.cpp
@@ -0,0 +1,450 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "MaxSceneBuilderOptions.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Utilities/MetaDataUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/VtDictionaryUtils.h>
+
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/usdcFileFormat.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+using namespace MaxUsd;
+PXR_NAMESPACE_USING_DIRECTIVE
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdMaxSceneBuilderOptionsTokens, PXR_MAXUSD_MAX_SCENE_BUILDER_TOKENS);
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdShadingModesTokens, PXR_MAXUSD_SHADING_MODES_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+MaxSceneBuilderOptions::MaxSceneBuilderOptions()
+{
+    // default settings must be applied manually
+    // it implies loading the USD plugin material conversion types
+    // which must take place outside the DLL initialization
+}
+
+MaxSceneBuilderOptions::MaxSceneBuilderOptions(const VtDictionary& dict)
+{
+    VtDictionary tmp = dict;
+    DictUtils::CoerceDictToGuideType(tmp, MaxSceneBuilderOptions::GetDefaultDictionary());
+
+    if (VtDictionaryIsHolding<ShadingModes>(
+            tmp, MaxUsdMaxSceneBuilderOptionsTokens->shadingModes)) {
+        auto shadingModes
+            = VtDictionaryGet<ShadingModes>(tmp, MaxUsdMaxSceneBuilderOptionsTokens->shadingModes);
+        for (VtDictionary& shadingMode : shadingModes) {
+            DictUtils::CoerceDictToGuideType(shadingMode, GetShadingModeDefaultDictionary());
+        }
+        tmp.SetValueAtPath(MaxUsdMaxSceneBuilderOptionsTokens->shadingModes, VtValue(shadingModes));
+    }
+
+    options = VtDictionaryOver(tmp, GetDefaultDictionary());
+}
+
+namespace {
+const std::string importUnmappedPrimvarsKey
+    = MaxUsdMaxSceneBuilderOptionsTokens->primvarMappingOptions.GetString() + ":"
+    + MaxUsdPrimvarMappingOptions->importUnmappedPrimvars.GetString();
+} // namespace
+
+/* static */
+const pxr::VtDictionary& MaxSceneBuilderOptions::GetDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->version] = 1;
+        // Base defaults.
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->initialLoadSet]
+            = static_cast<int>(UsdStage::LoadAll);
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->timeMode]
+            = static_cast<int>(ImportTimeMode::AllRange);
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->stageMaskPaths]
+            = std::vector<SdfPath> { SdfPath::AbsoluteRootPath() };
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->metaDataIncludes]
+            = std::set<int> { MetaData::Kind, MetaData::Purpose, MetaData::Hidden };
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->preferredMaterial]
+            = MaxUsdPreferredMaterialTokens->none;
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->useProgressBar] = true;
+
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->contextNames] = std::set<std::string>();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->jobContextOptions] = VtDictionary();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->chaserNames] = std::vector<std::string>();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->chaserArgs]
+            = std::map<std::string, ChaserArgs>();
+
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->logLevel] = static_cast<int>(Log::Level::Off);
+
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->primvarMappingOptions]
+            = PrimvarMappingOptions().GetOptions();
+        defaultDict.SetValueAtPath(importUnmappedPrimvarsKey, VtValue(true));
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->shadingModes] = ShadingModes();
+
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->startTimeCode] = 0.0;
+        defaultDict[MaxUsdMaxSceneBuilderOptionsTokens->endTimeCode] = 0.0;
+    });
+    // Purposefully left out of the call_once in order to always fetch the latest value for
+    // "APP_TEMP_DIR", it might change during the session.
+    defaultDict[MaxUsdSceneBuilderOptionsTokens->logPath]
+        = fs::path(std::wstring(MaxSDKSupport::GetString(GetCOREInterface()->GetDir(APP_TEMP_DIR)))
+                       .append(L"\\MaxUsdImport.log"));
+    // Purposefully left out the call_once, as new shading modes might be added during the session.
+    SetDefaultShadingModes(defaultDict);
+
+    return defaultDict;
+}
+
+/* static */
+const pxr::VtDictionary& MaxSceneBuilderOptions::GetShadingModeDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        // Base defaults.
+        defaultDict[MaxUsdShadingModesTokens->mode] = MaxUsdShadingModeTokens->useRegistry;
+        defaultDict[MaxUsdShadingModesTokens->materialConversion]
+            = UsdImagingTokens->UsdPreviewSurface;
+    });
+
+    return defaultDict;
+}
+
+void MaxSceneBuilderOptions::SetOptions(const MaxSceneBuilderOptions& options)
+{
+    this->options = options.options;
+}
+
+void MaxSceneBuilderOptions::SetDefaults() { options = GetDefaultDictionary(); }
+
+void MaxSceneBuilderOptions::SetDefaultShadingModes(VtDictionary& dict)
+{
+    ShadingModes shadingModes;
+
+    // Define the lambda to simplify the emplace_back operation
+    auto addShadingMode = [&shadingModes](const TfToken& mode, const TfToken& materialConversion) {
+        shadingModes.emplace_back(VtDictionary {
+            { MaxUsdShadingModesTokens->mode, VtValue(mode) },
+            { MaxUsdShadingModesTokens->materialConversion, VtValue(materialConversion) } });
+    };
+
+    for (const auto& c : MaxUsdShadingModeRegistry::ListMaterialConversions()) {
+        if (c != UsdImagingTokens->UsdPreviewSurface) {
+            auto const& info = MaxUsdShadingModeRegistry::GetMaterialConversionInfo(c);
+            if (info.hasImporter) {
+                addShadingMode(MaxUsdShadingModeTokens->useRegistry, c);
+            }
+        }
+    }
+    for (const auto& s : MaxUsdShadingModeRegistry::ListImporters()) {
+        if (s != MaxUsdShadingModeTokens->useRegistry) {
+            addShadingMode(s, MaxUsdShadingModeTokens->none);
+        }
+    }
+    addShadingMode(MaxUsdShadingModeTokens->useRegistry, UsdImagingTokens->UsdPreviewSurface);
+
+    dict.SetValueAtPath(MaxUsdMaxSceneBuilderOptionsTokens->shadingModes, VtValue(shadingModes));
+}
+
+void MaxSceneBuilderOptions::SetDefaultShadingModes() { SetDefaultShadingModes(options); }
+
+void MaxSceneBuilderOptions::SetStageInitialLoadSet(UsdStage::InitialLoadSet initialLoadSet)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->initialLoadSet] = static_cast<int>(initialLoadSet);
+}
+
+pxr::UsdStage::InitialLoadSet MaxSceneBuilderOptions::GetStageInitialLoadSet() const
+{
+    return static_cast<UsdStage::InitialLoadSet>(
+        VtDictionaryGet<int>(options, MaxUsdMaxSceneBuilderOptionsTokens->initialLoadSet));
+}
+
+void MaxSceneBuilderOptions::SetTimeMode(const ImportTimeMode& timeMode)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->timeMode] = static_cast<int>(timeMode);
+}
+
+MaxSceneBuilderOptions::ImportTimeMode MaxSceneBuilderOptions::GetTimeMode() const
+{
+    return static_cast<ImportTimeMode>(
+        VtDictionaryGet<int>(options, MaxUsdMaxSceneBuilderOptionsTokens->timeMode));
+}
+
+void MaxSceneBuilderOptions::SetStartTimeCode(double startTimeCode)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->startTimeCode] = startTimeCode;
+    if (GetEndTimeCode() < startTimeCode) {
+        SetEndTimeCode(startTimeCode);
+    }
+}
+
+void MaxSceneBuilderOptions::SetEndTimeCode(double endTimeCode)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->endTimeCode] = endTimeCode;
+    if (GetStartTimeCode() > endTimeCode) {
+        SetStartTimeCode(endTimeCode);
+    }
+}
+
+double MaxSceneBuilderOptions::GetStartTimeCode() const
+{
+    return VtDictionaryGet<double>(options, MaxUsdMaxSceneBuilderOptionsTokens->startTimeCode);
+}
+
+double MaxSceneBuilderOptions::GetEndTimeCode() const
+{
+    return VtDictionaryGet<double>(options, MaxUsdMaxSceneBuilderOptionsTokens->endTimeCode);
+}
+
+MaxUsd::ImportTimeConfig
+MaxSceneBuilderOptions::GetResolvedTimeConfig(const pxr::UsdStagePtr& stage) const
+{
+    MaxUsd::ImportTimeConfig resultTimeConfig {};
+    if (!stage) {
+        return resultTimeConfig;
+    }
+
+    double startTime = 0;
+    double endTime = 0;
+    switch (GetTimeMode()) {
+    case MaxSceneBuilderOptions::ImportTimeMode::AllRange: {
+        // this has to be set for this case so that the user's don't have to manually do this
+        startTime = stage->GetStartTimeCode();
+        endTime = stage->GetEndTimeCode();
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::CustomRange: {
+        ImportTimeConfig timeConfig(GetStartTimeCode(), GetEndTimeCode());
+        startTime = timeConfig.GetStartTimeCode();
+        endTime = timeConfig.GetEndTimeCode();
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::StartTime: {
+        startTime = stage->GetStartTimeCode();
+        endTime = stage->GetStartTimeCode();
+        break;
+    }
+    case MaxSceneBuilderOptions::ImportTimeMode::EndTime: {
+        startTime = stage->GetEndTimeCode();
+        endTime = stage->GetEndTimeCode();
+        break;
+    }
+    default: DbgAssert(_T("Unhandled TimeMode mode type. Importing using default values.")); break;
+    }
+
+    resultTimeConfig.SetStartTimeCode(startTime);
+    resultTimeConfig.SetEndTimeCode(endTime);
+
+    return resultTimeConfig;
+}
+
+void MaxSceneBuilderOptions::SetStageMaskPaths(const std::vector<pxr::SdfPath>& paths)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->stageMaskPaths] = paths;
+}
+
+const std::vector<pxr::SdfPath>& MaxSceneBuilderOptions::GetStageMaskPaths() const
+{
+    return VtDictionaryGet<std::vector<pxr::SdfPath>>(
+        options, MaxUsdMaxSceneBuilderOptionsTokens->stageMaskPaths);
+}
+
+void MaxSceneBuilderOptions::SetMetaData(const std::set<int>& filters)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->metaDataIncludes] = filters;
+}
+
+const std::set<int>& MaxSceneBuilderOptions::GetMetaData() const
+{
+    return VtDictionaryGet<std::set<int>>(
+        options, MaxUsdMaxSceneBuilderOptionsTokens->metaDataIncludes);
+}
+
+PrimvarMappingOptions MaxSceneBuilderOptions::GetPrimvarMappingOptions() const
+{
+    return PrimvarMappingOptions(VtDictionaryGet<VtDictionary>(
+        options, MaxUsdMaxSceneBuilderOptionsTokens->primvarMappingOptions));
+}
+
+void MaxSceneBuilderOptions::SetPrimvarMappingOptions(
+    const PrimvarMappingOptions& primvarMappingOptions)
+{
+    options.SetValueAtPath(
+        MaxUsdMaxSceneBuilderOptionsTokens->primvarMappingOptions,
+        VtValue(primvarMappingOptions.GetOptions()));
+}
+
+bool MaxSceneBuilderOptions::GetTranslateMaterials() const
+{
+    const auto& shadingModes = GetShadingModes();
+    // if the ShadingModes is not set to 'none', materials are imported
+    auto modesIter
+        = std::find_if(shadingModes.begin(), shadingModes.end(), [](const VtDictionary& sm) {
+              if (VtDictionaryIsHolding<TfToken>(sm, MaxUsdShadingModesTokens->mode)) {
+                  return VtDictionaryGet<TfToken>(sm, MaxUsdShadingModesTokens->mode)
+                      == MaxUsdShadingModeTokens->none;
+              }
+              return false;
+          });
+    return modesIter == shadingModes.end();
+}
+
+void MaxSceneBuilderOptions::SetShadingModes(const ShadingModes& modes)
+{
+    auto SetNoneShadingMode = [this]() {
+        options.SetValueAtPath(
+            MaxUsdMaxSceneBuilderOptionsTokens->shadingModes,
+            VtValue(ShadingModes({ VtDictionary {
+                { MaxUsdShadingModesTokens->mode, VtValue(MaxUsdShadingModeTokens->none) },
+                { MaxUsdShadingModesTokens->materialConversion,
+                  VtValue(MaxUsdPreferredMaterialTokens->none) } } })));
+    };
+    if (modes.empty()) {
+        SetNoneShadingMode();
+        return;
+    }
+    if (modes.size() > 1) {
+        auto modesIter = std::find_if(modes.begin(), modes.end(), [](const VtDictionary& sm) {
+            if (VtDictionaryIsHolding<TfToken>(sm, MaxUsdShadingModesTokens->mode)) {
+                return VtDictionaryGet<TfToken>(sm, MaxUsdShadingModesTokens->mode)
+                    == MaxUsdShadingModeTokens->none;
+            }
+            return false;
+        });
+        if (modesIter != modes.end()) {
+            Log::Error(
+                "Cannot set multiple import ShadingModes when one of those modes is set to 'none'. "
+                "Keeping only 'none' as the import ShadingMode - no material will get imported.");
+            SetNoneShadingMode();
+            return;
+        }
+    }
+    options.SetValueAtPath(MaxUsdMaxSceneBuilderOptionsTokens->shadingModes, VtValue(modes));
+}
+
+const MaxSceneBuilderOptions::ShadingModes& MaxSceneBuilderOptions::GetShadingModes() const
+{
+    return VtDictionaryGet<ShadingModes>(options, MaxUsdMaxSceneBuilderOptionsTokens->shadingModes);
+}
+
+pxr::TfToken MaxSceneBuilderOptions::GetMaterialConversion() const
+{
+    const auto& shadingModes = GetShadingModes();
+    return shadingModes.empty()
+        ? TfToken()
+        : VtDictionaryGet<TfToken>(
+              shadingModes.front(), MaxUsdShadingModesTokens->materialConversion);
+}
+
+void MaxSceneBuilderOptions::SetPreferredMaterial(const pxr::TfToken& targetMaterial)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->preferredMaterial] = targetMaterial;
+}
+
+pxr::TfToken MaxSceneBuilderOptions::GetPreferredMaterial() const
+{
+    return VtDictionaryGet<TfToken>(
+        options,
+        MaxUsdMaxSceneBuilderOptionsTokens->preferredMaterial,
+        VtDefault = MaxUsdPreferredMaterialTokens->none);
+}
+
+MaxSceneBuilderOptions MaxSceneBuilderOptions::OptionsWithAppliedContexts() const
+{
+    auto thisCopy = *this;
+
+    VtDictionary allContextArgs;
+    if (MergeJobContexts(false, this->GetContextNames(), allContextArgs)) {
+        if (!allContextArgs.empty()) {
+            if (allContextArgs.count(MaxUsdSceneBuilderOptionsTokens->chaserNames) > 0) {
+                auto copyChaserNames = thisCopy.GetChaserNames();
+                if (copyChaserNames.empty()) {
+                    copyChaserNames = DictUtils::ExtractVector<std::string>(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserNames);
+                } else // merge args
+                {
+                    auto values = DictUtils::ExtractVector<std::string>(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserNames);
+                    for (auto element : values) {
+                        if (std::find(copyChaserNames.begin(), copyChaserNames.end(), element)
+                            == copyChaserNames.end()) {
+                            copyChaserNames.push_back(element);
+                        }
+                    }
+                }
+                thisCopy.SetChaserNames(copyChaserNames);
+            }
+            if (allContextArgs.count(MaxUsdSceneBuilderOptionsTokens->chaserArgs) > 0) {
+                auto copyChaserArgs = thisCopy.GetAllChaserArgs();
+                if (copyChaserArgs.empty()) {
+                    copyChaserArgs = ExtractChaserArgs(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserArgs);
+                } else // merge args
+                {
+                    auto values = ExtractChaserArgs(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserArgs);
+                    for (auto element : values) {
+                        if (copyChaserArgs.find(element.first) == copyChaserArgs.end()) {
+                            copyChaserArgs[element.first] = element.second;
+                        } else {
+                            auto& currentChaserArgs = copyChaserArgs[element.first];
+                            for (auto arg : element.second) {
+                                if (currentChaserArgs.find(arg.first) == currentChaserArgs.end()) {
+                                    currentChaserArgs[arg.first] = arg.second;
+                                } else {
+                                    if (currentChaserArgs[arg.first] != arg.second) {
+                                        TF_WARN(TfStringPrintf(
+                                            "Multiple argument value for '%s' associated to chaser "
+                                            "'%s'. Keeping "
+                                            "the argument value set to '%s' from Context.",
+                                            arg.first.c_str(),
+                                            element.first.c_str(),
+                                            arg.second));
+                                        // take the argument from the context, and forget the user's
+                                        currentChaserArgs[arg.first] = arg.second;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                thisCopy.SetAllChaserArgs(copyChaserArgs);
+            }
+        }
+    } else {
+        MaxUsd::Log::Error("Errors while processing import contexts. Using base import options.");
+    }
+
+    return thisCopy;
+}
+
+bool MaxSceneBuilderOptions::GetUseProgressBar() const
+{
+    return VtDictionaryGet<bool>(
+        options, MaxUsdMaxSceneBuilderOptionsTokens->useProgressBar, VtDefault = true);
+}
+
+void MaxSceneBuilderOptions::SetUseProgressBar(bool useProgressBar)
+{
+    options[MaxUsdMaxSceneBuilderOptionsTokens->useProgressBar] = useProgressBar;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Builders/MaxSceneBuilderOptions.h b/src/MaxUsd/Builders/MaxSceneBuilderOptions.h
new file mode 100644
index 0000000..e0c9fec
--- /dev/null
+++ b/src/MaxUsd/Builders/MaxSceneBuilderOptions.h
@@ -0,0 +1,274 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/base/tf/token.h>
+#pragma warning(push)
+#pragma warning(disable : 4275) // non dll-interface class 'boost::python::api::object' used as base
+                                // for dll-interface struct 'boost::python::detail::list_base'
+#include <pxr/usd/usd/stage.h>
+#pragma warning(pop)
+
+#include "SceneBuilderOptions.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define PXR_MAXUSD_MAX_SCENE_BUILDER_TOKENS \
+	/* Dictionary keys */ \
+	(version) \
+	(initialLoadSet) \
+	(timeMode) \
+	(stageMaskPaths) \
+	(metaDataIncludes) \
+	(preferredMaterial) \
+	(useProgressBar) \
+	(primvarMappingOptions) \
+	(shadingModes) \
+	(startTimeCode) \
+	(endTimeCode)
+
+
+#define PXR_MAXUSD_SHADING_MODES_TOKENS \
+	/* Dictionary keys */ \
+	/* importer to use */ \
+	(mode) \
+	/* material to import */ \
+	(materialConversion)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdMaxSceneBuilderOptionsTokens,
+    MaxUSDAPI,
+    PXR_MAXUSD_MAX_SCENE_BUILDER_TOKENS);
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdShadingModesTokens, MaxUSDAPI, PXR_MAXUSD_SHADING_MODES_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief 3ds Max Scene Build configuration options.
+ * \remarks In the future, additional properties will be included to support transfer of more refined import controls.
+ * This includes start/end Time Codes for animation, variants, etc.
+ */
+class MaxSceneBuilderOptions : public SceneBuilderOptions
+{
+public:
+    /**
+     * \brief Time mode for import.
+     * AllRange considers the stage's entire range
+     * CustomRange will use the range defined in the import configuration (from StartTimeCode to
+     * EndTimeCode) StartTime will use the stage's start time code EndTime will use the stage's end
+     * time code
+     */
+    enum class MaxUSDAPI ImportTimeMode
+    {
+        AllRange,
+        CustomRange,
+        StartTime,
+        EndTime
+    };
+
+    /**
+     * \brief Constructor.
+     */
+    MaxUSDAPI MaxSceneBuilderOptions();
+
+    /**
+     * \brief This is used internally to initialize the options from a dictionary,
+     * and it is a costly operation due to the validation of the dictionary.
+     * \param dict The dictionary to initialize the options from.
+     */
+    MaxUSDAPI MaxSceneBuilderOptions(const pxr::VtDictionary& dict);
+
+    /**
+     * \brief Copies the values from an existing options object.
+     */
+    MaxUSDAPI void SetOptions(const MaxSceneBuilderOptions& options);
+
+    /**
+     * \brief Resets the importer options to default values.
+     */
+    MaxUSDAPI void SetDefaults();
+
+    /**
+     * \brief Resets the importer Shading Modes option to default values.
+     */
+    MaxUSDAPI void SetDefaultShadingModes();
+
+    /**
+     * \brief Check if materials should be translated
+     * \return "true" if materials should be translated
+     */
+    MaxUSDAPI bool GetTranslateMaterials() const;
+
+    /**
+     * \brief Sets the USD stage's initial load set to use for the import of content into 3ds Max.
+     * \param initialLoadSet USD Stage initial load set to use for the import of content into 3ds Max.
+     */
+    MaxUSDAPI void SetStageInitialLoadSet(pxr::UsdStage::InitialLoadSet initialLoadSet);
+
+    /**
+     * \brief Return the USD Stage initial load set to use for the import of content into 3ds Max.
+     * \return The USD Stage initial load set to use for the import of content into 3ds Max.
+     */
+    MaxUSDAPI pxr::UsdStage::InitialLoadSet GetStageInitialLoadSet() const;
+
+    /**
+     * \brief Sets the TimeMode at which the translation should take place.
+     */
+    MaxUSDAPI void SetTimeMode(const ImportTimeMode& timeMode);
+
+    /**
+     * \brief Set the usd timeCode for the starting time range at which the import should take place.
+     * \param startTimeCode The timeCode value for the initial value for the import time range.
+     */
+    MaxUSDAPI void SetStartTimeCode(double startTimeCode);
+
+    /**
+     * \brief Set the usd timeCode for the end time range at which the import should take place.
+     * \param endTimeCode The timeCode value for the end value for the import time range.
+     */
+    MaxUSDAPI void SetEndTimeCode(double endTimeCode);
+
+    /**
+     * \brief Gets usd timeCode value set for the start of the import time range.
+     * \return The TimeCode value set for start time for the import time range.
+     */
+    MaxUSDAPI double GetStartTimeCode() const;
+
+    /**
+     * \brief Gets usd timeCode value for the end of the import time range.
+     * \return The TimeCode value set for end time for the import time range.
+     */
+    MaxUSDAPI double GetEndTimeCode() const;
+
+    /**
+     * \brief Gets the TimeMode at which the translation should take place.
+     * \return The TimeMode to be used.
+     */
+    MaxUSDAPI ImportTimeMode GetTimeMode() const;
+
+    /**
+     * \brief Resolves the Time Configuration at which the conversion should take place when translating the USD stage
+     * to Max data.
+     * \param stage A reference to the stage to be translated.
+     */
+    MaxUSDAPI virtual MaxUsd::ImportTimeConfig
+    GetResolvedTimeConfig(const pxr::UsdStagePtr& stage) const;
+
+    /**
+     * \brief Sets the stage mask's paths. Only USD prims at or below these paths will be imported.
+     * \param The mask paths.
+     */
+    MaxUSDAPI void SetStageMaskPaths(const std::vector<pxr::SdfPath>& paths);
+
+    /**
+     * \brief Returns the currently configured stage mask paths. Only USD prims at or below these paths
+     * will be imported.
+     * \return The mask's paths.
+     */
+    MaxUSDAPI const std::vector<pxr::SdfPath>& GetStageMaskPaths() const;
+
+    /**
+     * \param filters Contains a list of MaxUsd::MetaData::MetaDataType that will be included during import
+     */
+    MaxUSDAPI void SetMetaData(const std::set<int>& filters);
+
+    /**
+     * \return Returns the list of MaxUsd::MetaData::MetaDataType that will be included during import
+     */
+    MaxUSDAPI const std::set<int>& GetMetaData() const;
+
+    /**
+     * \brief Returns the primvar/channel mapping options.
+     * \return The primvar/channel mapping options.
+     */
+    MaxUSDAPI PrimvarMappingOptions GetPrimvarMappingOptions() const;
+
+    /**
+     * \brief Sets the primvar/channel mapping options.
+     * \param primvarMappingOptions The new primvar/channel mapping options.
+     */
+    MaxUSDAPI void SetPrimvarMappingOptions(const PrimvarMappingOptions& primvarMappingOptions);
+
+    using ShadingModes = std::vector<pxr::VtDictionary>;
+    /**
+     * Set the shading modes to use at import
+     * \param modes A vector of VtDictionary, each dictionary is expected to contain two keys, 'materialConversion' and
+     * 'mode'
+     */
+    MaxUSDAPI void SetShadingModes(const ShadingModes& modes);
+
+    /**
+     * Get the shading modes to use at import
+     * \return the array of ShadingMode to use
+     */
+    MaxUSDAPI const ShadingModes& GetShadingModes() const;
+
+    /**
+     * Get the current material conversion
+     */
+    MaxUSDAPI pxr::TfToken GetMaterialConversion() const;
+    /**
+     * \brief Sets the preferred conversion material to use for material import
+     * \param targetMaterial The preferred conversion material to use for material import
+     */
+    MaxUSDAPI void SetPreferredMaterial(const pxr::TfToken& targetMaterial);
+    /**
+     * \brief Gets the preferred conversion material set for material import
+     * \return The preferred conversion material set for material import
+     */
+    MaxUSDAPI pxr::TfToken GetPreferredMaterial() const;
+
+    /**
+     * \brief Returns a copy of the current MaxSceneBuilderOptions with
+     * the JobContext option overrides applied on that copy
+     */
+    MaxUSDAPI MaxSceneBuilderOptions OptionsWithAppliedContexts() const;
+
+    /**
+     * \brief Gets whether to use the progress bar or not.
+     * \return True if the progress bar should be used.
+     */
+    MaxUSDAPI bool GetUseProgressBar() const;
+
+    /**
+     * \brief Sets whether to use the progress bar.
+     */
+    MaxUSDAPI void SetUseProgressBar(bool useProgressBar);
+
+private:
+    /**
+     * \brief Returns the default dictionary for the importer options.
+     * \return The default dictionary for the importer options.
+     */
+    static MaxUSDAPI const pxr::VtDictionary& GetDefaultDictionary();
+
+    /**
+     * \brief Returns the default dictionary for the importer shading modes.
+     * \return The default dictionary for the importer shading modes.
+     */
+    static MaxUSDAPI const pxr::VtDictionary& GetShadingModeDefaultDictionary();
+
+    static MaxUSDAPI void SetDefaultShadingModes(pxr::VtDictionary& dict);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Builders/SceneBuilderOptions.cpp b/src/MaxUsd/Builders/SceneBuilderOptions.cpp
new file mode 100644
index 0000000..3c4d09a
--- /dev/null
+++ b/src/MaxUsd/Builders/SceneBuilderOptions.cpp
@@ -0,0 +1,293 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "SceneBuilderOptions.h"
+
+#include "JobContextRegistry.h"
+#include "UsdSceneBuilderOptions.h"
+
+#include <MaxUsd/Utilities/VtDictionaryUtils.h>
+
+#include <pxr/base/tf/diagnostic.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdSceneBuilderOptionsTokens, PXR_MAXUSD_SCENE_BUILDER_OPTIONS_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+namespace MAXUSD_NS_DEF {
+
+// Merges all the jobContext arguments dictionaries found while exploring the jobContexts into a
+// single one. Also checks for conflicts and errors.
+bool MergeJobContexts(
+    bool                         isExport,
+    const std::set<std::string>& contexts,
+    VtDictionary&                allContextArgs)
+{
+    // List of all argument dictionaries found while exploring jobContexts
+    std::vector<VtDictionary> contextArgs;
+    bool                      canMergeContexts = true;
+    // This first loop gathers all job context argument dictionaries found in the userArgs
+    const TfToken& jcKey = MaxUsdSceneBuilderOptionsTokens->jobContext;
+    for (const std::string& v : contexts) {
+        const TfToken                                jobContext(v);
+        const MaxUsdJobContextRegistry::ContextInfo& ci
+            = MaxUsdJobContextRegistry::GetJobContextInfo(jobContext);
+        auto enablerCallback = isExport ? ci.exportEnablerCallback : ci.importEnablerCallback;
+        if (enablerCallback) {
+            VtDictionary extraArgs = enablerCallback();
+            // Add the job context name to the args (for reference when merging):
+            VtDictionary::iterator jobContextNamesIt = extraArgs.find(jcKey);
+            if (jobContextNamesIt != extraArgs.end()) {
+                // We already have a vector. Ensure it is of size 1 and contains only the
+                // current context name:
+                const std::vector<VtValue>& currContextNames
+                    = VtDictionaryGet<std::vector<VtValue>>(extraArgs, jcKey);
+                if ((currContextNames.size() == 1 && currContextNames.front() != v)
+                    || currContextNames.size() > 1) {
+                    TF_RUNTIME_ERROR(TfStringPrintf(
+                        "Arguments for job context '%s' can not include extra contexts.",
+                        jobContext.GetText()));
+                    canMergeContexts = false;
+                }
+            }
+            std::vector<VtValue> jobContextNames;
+            jobContextNames.push_back(VtValue(v));
+            extraArgs[jcKey] = jobContextNames;
+            contextArgs.push_back(extraArgs);
+        } else {
+            MaxUsd::Log::Warn("Ignoring unknown job context '{0}'.", jobContext.GetText());
+        }
+    }
+    // Convenience map holding the jobContext that first introduces an argument to the final
+    // dictionary. Allows printing meaningful error messages.
+    std::map<std::string, std::string> argInitialSource;
+    // Traverse argument dictionaries and look for merge conflicts while building the returned
+    // allContextArgs.
+    for (auto const& dict : contextArgs) {
+        // We made sure the value exists in the above loop, so we can fetch without fear:
+        const std::string& sourceName = VtDictionaryGet<std::vector<VtValue>>(dict, jcKey)
+                                            .front()
+                                            .UncheckedGet<std::string>();
+        for (auto const& dictTuple : dict) {
+            const std::string& k = dictTuple.first;
+            const VtValue&     v = dictTuple.second;
+            auto               allContextIt = allContextArgs.find(k);
+            if (allContextIt == allContextArgs.end()) {
+                // First time we see this argument. Store and remember source.
+
+                // special treatment on a deprecated base option ('chaser')
+                if (k == MaxUsdSceneBuilderOptionsTokens->chaser) {
+                    TF_WARN(TfStringPrintf(
+                        "Deprecated option key '%s' was found. Key shoud be replaced with '%s' unless otherwise required.",
+                        MaxUsdSceneBuilderOptionsTokens->chaser,
+                        MaxUsdSceneBuilderOptionsTokens->chaserNames));
+                }
+
+                allContextArgs[k] = v;
+                argInitialSource[k] = sourceName;
+            } else {
+                // We have already seen this argument from another jobContext. Look for conflicts:
+                const VtValue& allContextValue = allContextIt->second;
+                if (allContextValue.IsHolding<std::vector<VtValue>>()) {
+                    if (v.IsHolding<std::vector<VtValue>>()) {
+                        // We merge arrays:
+                        std::vector<VtValue> mergedValues
+                            = allContextValue.UncheckedGet<std::vector<VtValue>>();
+                        for (const VtValue& element : v.UncheckedGet<std::vector<VtValue>>()) {
+                            if (element.IsHolding<std::vector<VtValue>>()) {
+                                // vector<vector<string>> is common for chaserArgs and shadingModes
+                                auto findElement = [&element](const VtValue& a) {
+                                    // make this comparison simple for now
+                                    return element == a;
+                                };
+                                if (std::find_if(
+                                        mergedValues.begin(), mergedValues.end(), findElement)
+                                    == mergedValues.end()) {
+                                    mergedValues.push_back(element);
+                                }
+                            } else {
+                                if (std::find(mergedValues.begin(), mergedValues.end(), element)
+                                    == mergedValues.end()) {
+                                    mergedValues.push_back(element);
+                                }
+                            }
+                        }
+                        allContextArgs[k] = mergedValues;
+                    } else {
+                        // We have both an array and a scalar under the same argument name.
+                        TF_RUNTIME_ERROR(TfStringPrintf(
+                            "Context '%s' and context '%s' do not agree on type of argument '%s'.",
+                            sourceName.c_str(),
+                            argInitialSource[k].c_str(),
+                            k.c_str()));
+                        canMergeContexts = false;
+                    }
+                } else {
+                    // Scalar value already exists. Check for value conflicts:
+                    if (allContextValue != v) {
+                        TF_RUNTIME_ERROR(TfStringPrintf(
+                            "Context '%s' and context '%s' do not agree on argument '%s'.",
+                            sourceName.c_str(),
+                            argInitialSource[k].c_str(),
+                            k.c_str()));
+                        canMergeContexts = false;
+                    }
+                }
+            }
+        }
+    }
+    return canMergeContexts;
+}
+
+std::map<std::string, SceneBuilderOptions::ChaserArgs>
+ExtractChaserArgs(const pxr::VtDictionary& userArgs, const pxr::TfToken& key)
+{
+    const std::vector<std::vector<VtValue>> chaserArgs
+        = DictUtils::ExtractVector<std::vector<VtValue>>(userArgs, key);
+
+    std::map<std::string, SceneBuilderOptions::ChaserArgs> result;
+    for (const std::vector<VtValue>& argTriple : chaserArgs) {
+        if (argTriple.size() != 3) {
+            TF_CODING_ERROR("Each chaser arg must be a triple (chaser, arg, value)");
+            return std::map<std::string, SceneBuilderOptions::ChaserArgs>();
+        }
+
+        const std::string& chaser = argTriple[0].Get<std::string>();
+        const std::string& arg = argTriple[1].Get<std::string>();
+        const std::string& value = argTriple[2].Get<std::string>();
+
+        // any conflicts present
+        auto chaserArgs = result.find(chaser);
+        if (chaserArgs == result.end()) {
+            result[chaser][arg] = value;
+        } else {
+            auto chaserArg = chaserArgs->second.find(arg);
+            if (chaserArg == chaserArgs->second.end()) {
+                chaserArgs->second[arg] = value;
+            } else {
+                if (chaserArg->second != value) {
+                    // keep the argument value from the first context to use that argument, and
+                    // forget the other values
+                    TF_WARN(TfStringPrintf(
+                        "Multiple argument value for '%s' associated to chaser '%s'. Keeping value "
+                        "set to '%s'.",
+                        arg.c_str(),
+                        chaser.c_str(),
+                        chaserArg->second));
+                }
+            }
+        }
+    }
+    return result;
+}
+
+const Log::Options& SceneBuilderOptions::GetLogOptions() const
+{
+    static Log::Options logOptions;
+    logOptions.level = static_cast<Log::Level>(
+        VtDictionaryGet<int>(options, MaxUsdSceneBuilderOptionsTokens->logLevel));
+    logOptions.path = VtDictionaryGet<fs::path>(options, MaxUsdSceneBuilderOptionsTokens->logPath);
+    return logOptions;
+}
+
+void SceneBuilderOptions::SetLogOptions(const Log::Options& logOptions)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->logLevel] = static_cast<int>(logOptions.level);
+    options[MaxUsdSceneBuilderOptionsTokens->logPath] = logOptions.path;
+}
+
+void SceneBuilderOptions::SetLogPath(fs::path logPath)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->logPath] = logPath;
+}
+
+const fs::path& SceneBuilderOptions::GetLogPath() const
+{
+    return VtDictionaryGet<fs::path>(options, MaxUsdSceneBuilderOptionsTokens->logPath);
+}
+
+void SceneBuilderOptions::SetLogLevel(Log::Level logLevel)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->logLevel] = static_cast<int>(logLevel);
+}
+
+Log::Level SceneBuilderOptions::GetLogLevel() const
+{
+    return static_cast<Log::Level>(
+        VtDictionaryGet<int>(options, MaxUsdSceneBuilderOptionsTokens->logLevel));
+}
+
+const pxr::VtDictionary&
+SceneBuilderOptions::GetJobContextOptions(const pxr::TfToken& jobContext) const
+{
+    auto jobCtxOpts = VtDictionaryGet<VtDictionary>(
+        options, MaxUsdSceneBuilderOptionsTokens->jobContextOptions);
+    if (VtDictionaryIsHolding<VtDictionary>(jobCtxOpts, jobContext)) {
+        return VtDictionaryGet<VtDictionary>(jobCtxOpts, jobContext);
+    }
+
+    static const VtDictionary emptyDict;
+    return emptyDict;
+}
+
+void SceneBuilderOptions::SetJobContextOptions(
+    const pxr::TfToken&      jobContext,
+    const pxr::VtDictionary& ctxOptions)
+{
+    if (VtDictionaryIsHolding<VtDictionary>(
+            options, MaxUsdSceneBuilderOptionsTokens->jobContextOptions)) {
+        std::string key = MaxUsdSceneBuilderOptionsTokens->jobContextOptions.GetString() + ":"
+            + jobContext.GetString();
+        options.SetValueAtPath(key, VtValue(ctxOptions));
+    }
+}
+
+const std::vector<std::string>& SceneBuilderOptions::GetChaserNames() const
+{
+    return VtDictionaryGet<std::vector<std::string>>(
+        options, MaxUsdSceneBuilderOptionsTokens->chaserNames);
+}
+
+void SceneBuilderOptions::SetChaserNames(const std::vector<std::string>& chasers)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->chaserNames] = chasers;
+}
+
+const std::map<std::string, SceneBuilderOptions::ChaserArgs>&
+SceneBuilderOptions::GetAllChaserArgs() const
+{
+    return VtDictionaryGet<std::map<std::string, ChaserArgs>>(
+        options, MaxUsdSceneBuilderOptionsTokens->chaserArgs);
+}
+
+void SceneBuilderOptions::SetAllChaserArgs(const std::map<std::string, ChaserArgs>& chaserArgs)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->chaserArgs] = chaserArgs;
+}
+
+void SceneBuilderOptions::SetContextNames(const std::set<std::string> contexts)
+{
+    options[MaxUsdSceneBuilderOptionsTokens->contextNames] = contexts;
+}
+
+const std::set<std::string>& SceneBuilderOptions::GetContextNames() const
+{
+    return VtDictionaryGet<std::set<std::string>>(
+        options, MaxUsdSceneBuilderOptionsTokens->contextNames);
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Builders/SceneBuilderOptions.h b/src/MaxUsd/Builders/SceneBuilderOptions.h
new file mode 100644
index 0000000..7f5f4f4
--- /dev/null
+++ b/src/MaxUsd/Builders/SceneBuilderOptions.h
@@ -0,0 +1,166 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Utilities/DictionaryOptionProvider.h>
+#include <MaxUsd/Utilities/Logging.h>
+
+#include <pxr/base/vt/dictionary.h>
+#include <pxr/usd/sdf/path.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+#define PXR_MAXUSD_SCENE_BUILDER_OPTIONS_TOKENS \
+    /* Dictionary keys */ \
+    (convertMaterialsTo) \
+    (contextNames) \
+    (jobContext) \
+    (jobContextOptions) \
+    (chaserNames) \
+    /* 'chaser' is a deprecated option replaced with 'chaserNames' */ \
+    (chaser) \
+    (chaserArgs) \
+    /* Log Options */ \
+    (logPath) \
+    (logLevel)
+
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdSceneBuilderOptionsTokens,
+    MaxUSDAPI,
+    PXR_MAXUSD_SCENE_BUILDER_OPTIONS_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+// \brief Merges all the jobContext arguments dictionaries found while exploring the jobContexts into a
+// single one. Also checks for conflicts and errors.
+//
+// \param[in] isExport if we are calling the import or the export jobContext callback.
+// \param[in] contexts jobContexts to merge.
+//
+// \param[out] allContextArgs dictionary of all extra jobContext arguments merged together.
+// \return true if the merge was successful, false if a conflict or an error was detected.
+MaxUSDAPI bool MergeJobContexts(
+    bool                         isExport,
+    const std::set<std::string>& contexts,
+    pxr::VtDictionary&           allContextArgs);
+
+// The chaser args are stored as vectors of vectors (since this is how you
+// would need to pass them in the Max Python API). Convert this to a
+// map of maps.
+MaxUSDAPI std::map<std::string, std::map<std::string, std::string>>
+          ExtractChaserArgs(const pxr::VtDictionary& userArgs, const pxr::TfToken& key);
+
+/**
+ * \brief Class for getting and setting builder options.
+ */
+class SceneBuilderOptions : public DictionaryOptionProvider
+{
+public:
+    typedef std::map<std::string, std::string> ChaserArgs;
+
+    MaxUSDAPI virtual ~SceneBuilderOptions() = default;
+
+    /**
+     * \brief Returns the builder's logging options.
+     * \return The logging options.
+     */
+    MaxUSDAPI const Log::Options& GetLogOptions() const;
+
+    /**
+     * \brief Sets the logging options for the builder.
+     * \param logOptions The logging options to set.
+     */
+    MaxUSDAPI void SetLogOptions(const Log::Options& logOptions);
+
+    /**
+     * \brief Sets the log path.
+     * \param logPath The log path.
+     */
+    MaxUSDAPI void SetLogPath(fs::path logPath);
+    /**
+     * \brief Returns the log path.
+     * \return The log's path.
+     */
+    MaxUSDAPI const fs::path& GetLogPath() const;
+    /**
+     * \brief Sets the log level.
+     * \param logLevel The log level.
+     */
+    MaxUSDAPI void SetLogLevel(MaxUsd::Log::Level logLevel);
+    /**
+     * \brief Returns the logging level (info, warn, error, etc.)
+     * \return The log level.
+     */
+    MaxUSDAPI MaxUsd::Log::Level GetLogLevel() const;
+
+    /**
+     * \brief Gets the list of export chasers to be called at USD export
+     * \return All export chasers to be called at USD export
+     */
+    MaxUSDAPI const std::vector<std::string>& GetChaserNames() const;
+
+    /**
+     * \brief Sets the chaser list to use at export
+     * \param chasers The list of export chaser to call at export
+     */
+    MaxUSDAPI void SetChaserNames(const std::vector<std::string>& chasers);
+
+    /**
+     * \brief Gets the map of export chasers with their specified arguments
+     * \return The map of export chasers with their specified arguments
+     */
+    MaxUSDAPI const std::map<std::string, ChaserArgs>& GetAllChaserArgs() const;
+
+    /**
+     * \brief Sets the export chasers' arguments map
+     * \param chaserArgs a map of arguments
+     */
+    MaxUSDAPI void SetAllChaserArgs(const std::map<std::string, ChaserArgs>& chaserArgs);
+
+    /**
+     * \brief Sets the context list to use at export
+     * \param contexts The list of context to apply at export
+     */
+    MaxUSDAPI void SetContextNames(const std::set<std::string> contexts);
+
+    /**
+     * \brief Gets the list of contexts (plug-in configurations) to be applied on USD export
+     * \return All contexts names to be applied on USD export
+     */
+    MaxUSDAPI const std::set<std::string>& GetContextNames() const;
+
+    /**
+     * \brief Get the dictionary holding the options for the given job context.
+     * \param jobContext The job context to get the options for.
+     * \return The dictionary holding the options for the given job context.
+     */
+    MaxUSDAPI const pxr::VtDictionary& GetJobContextOptions(const pxr::TfToken& jobContext) const;
+
+    /**
+     * \brief Set the options for the given job context.
+     * \param jobContext The job context to set the options for.
+     * \param ctxOptions The dictionary options to set.
+     */
+    MaxUSDAPI void
+    SetJobContextOptions(const pxr::TfToken& jobContext, const pxr::VtDictionary& options);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Builders/USDSceneBuilder.cpp b/src/MaxUsd/Builders/USDSceneBuilder.cpp
new file mode 100644
index 0000000..6995e42
--- /dev/null
+++ b/src/MaxUsd/Builders/USDSceneBuilder.cpp
@@ -0,0 +1,1235 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDSceneBuilder.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Translators/AnimExportTask.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Translators/TranslatorMaterial.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/Utilities/Logging.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/MaxProgressBar.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/MetaDataUtils.h>
+#include <MaxUsd/Utilities/PluginUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <MaxUsd/resource.h>
+
+#include <pxr/usd/kind/registry.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usd/inherits.h>
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usd/stage.h>
+#include <pxr/usd/usdGeom/camera.h>
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/metrics.h>
+#include <pxr/usd/usdGeom/scope.h>
+#include <pxr/usd/usdGeom/tokens.h>
+#include <pxr/usd/usdLux/cylinderLight.h>
+#include <pxr/usd/usdLux/shadowAPI.h>
+
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+#include <Shlwapi.h>
+#include <memory>
+#include <mesh.h>
+#include <modstack.h>
+#include <stack>
+
+namespace MAXUSD_NS_DEF {
+
+USDSceneBuilder::USDSceneBuilder() = default;
+
+pxr::UsdStageRefPtr USDSceneBuilder::Build(
+    const USDSceneBuilderOptions&               buildOptions,
+    bool&                                       cancelled,
+    const fs::path&                             filename,
+    std::map<std::string, pxr::SdfLayerRefPtr>& editedLayers,
+    bool                                        isUSDZ = false)
+{
+    pxr::UsdStageRefPtr stage = pxr::UsdStage::CreateInMemory();
+
+    auto& exportOptions = const_cast<USDSceneBuilderOptions&>(buildOptions);
+
+    // Create the write job context - used for shader and prim writers.
+    // Also resolve the token that can be in the MaterialLayerPath, so that the full path can be
+    // used by the writers through the context.
+    pxr::MaxUsdWriteJobContext writeJobContext { stage, filename.string(), exportOptions, isUSDZ };
+    exportOptions.SetMaterialLayerPath(
+        writeJobContext.ResolveString(buildOptions.GetMaterialLayerPath()));
+
+    if (buildOptions.GetUseSeparateMaterialLayer()) {
+        const auto matFilePath
+            = USDCore::sanitizedFilename(buildOptions.GetMaterialLayerPath(), ".usda");
+        if (matFilePath.empty()) {
+            MaxUsd::Log::Error(
+                "Invalid material layer path: {0}", buildOptions.GetMaterialLayerPath());
+        } else if (matFilePath.extension() == ".usdz") {
+            MaxUsd::Log::Error(
+                "Invalid material layer path: {0}. USDZ is not a valid file format for material "
+                "layers.",
+                buildOptions.GetMaterialLayerPath());
+        } else {
+            auto ext = pxr::SdfFileFormat::FindByExtension(buildOptions.GetMaterialLayerPath());
+            const auto identifier = matFilePath.string();
+
+            // The layer could already be in memory...(previous version loaded in a stage)
+            const auto matLayer = MaxUsd::CreateOrOverwriteLayer(ext, identifier);
+            if (matLayer) {
+                writeJobContext.AddUsedLayerIdentifier(matFilePath.string(), matLayer);
+            } else {
+                MaxUsd::Log::Error("Material Layer for {} failed to be created", identifier);
+            }
+        }
+    }
+
+    // Insert the stage in the global cache for the time of the export. Useful so it can be accessed
+    // from callbacks. Removed from the cache using RAII.
+    const MaxUsd::StageCacheScopeGuard stageCacheGuard { stage };
+
+    pxr::TfToken upAxis;
+    if (buildOptions.GetUpAxis() == USDSceneBuilderOptions::UpAxis::Y) {
+        upAxis = pxr::UsdGeomTokens->y;
+    } else {
+        upAxis = pxr::UsdGeomTokens->z;
+    }
+
+    pxr::UsdGeomSetStageUpAxis(stage, upAxis);
+
+    // Export units setup
+    double stageScale = GetSystemUnitScale(UNITS_METERS);
+    // round float imprecision
+    stageScale = MaxUsd::MathUtils::RoundToSignificantDigit(
+        stageScale, std::numeric_limits<float>::digits10);
+    pxr::UsdGeomSetStageMetersPerUnit(stage, stageScale);
+
+    INode* rootNode = coreInterface->GetRootNode();
+    if (rootNode == nullptr) {
+        return stage;
+    }
+
+    const auto timeConfig = buildOptions.GetResolvedTimeConfig();
+    if (timeConfig.IsAnimated()) {
+        stage->SetStartTimeCode(timeConfig.GetStartFrame());
+        stage->SetEndTimeCode(timeConfig.GetEndFrame());
+        // In 3dsMax, one tick is defined as 1/4800th of a second.
+        const auto maxFramePerSecond = (4800.0 / double(GetTicksPerFrame()));
+        stage->SetTimeCodesPerSecond(maxFramePerSecond);
+        // Typically the FramePerSeconds and TimeCodePerSeconds are equal, although they
+        // don't need necessarily need to be. According to the docs, FramePerSecond
+        // "makes an advisory statement about how the contained data can be most usefully
+        // consumed and presented. It's primarily an indication of the expected playback rate
+        // for the data, but a timeline editing tool might also want to use this to decide
+        // how to scale and label its timeline."
+        stage->SetFramesPerSecond(maxFramePerSecond);
+    }
+
+    // If we are not exporting the whole scene, build the set of the nodes to export, for easy
+    // access later.
+    nodesToExportSet.clear();
+    if (buildOptions.GetContentSource() == USDSceneBuilderOptions::ContentSource::NodeList) {
+        const auto nodesToExport = buildOptions.GetNodesToExport();
+        for (int i = 0; i < nodesToExport.Count(); ++i) {
+            nodesToExportSet.emplace(nodesToExport[i]);
+        }
+    } else if (
+        buildOptions.GetContentSource() == USDSceneBuilderOptions::ContentSource::Selection) {
+        for (int i = 0; i < GetCOREInterface()->GetSelNodeCount(); ++i) {
+            nodesToExportSet.emplace(GetCOREInterface()->GetSelNode(i));
+        }
+    }
+
+    // If we are only exporting a set of nodes, and it is empty, we are done!
+    // In practice, a user would most likely get stopped before reaching this point if trying to
+    // export from an empty selection or an empty list of nodes.
+    if (buildOptions.GetContentSource() != USDSceneBuilderOptions::ContentSource::RootNode
+        && nodesToExportSet.empty()) {
+        return stage;
+    }
+
+    MaxUsd::UniqueNameGenerator primNameGenerator;
+
+    // Keep track of each prim's source node. To be able to notify users if needed.
+    pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap primsToNodes;
+    pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>               primsToMaterialBind;
+
+    static const std::wstring progressBarTitle = GetString(IDS_EXPORT_PROGRESS_TITLE);
+    MaxProgressBar            progressBar(progressBarTitle.c_str());
+    progressBar.SetEnabled(buildOptions.GetUseProgressBar());
+    static const std::wstring completionMsg = GetString(IDS_EXPORT_PROGRESS_COMPLETED_MESSAGE);
+    const auto                progressScopeGuard = MaxUsd::MakeScopeGuard(
+        [&progressBar]() { progressBar.Start(); },
+        [&progressBar]() { progressBar.Stop(false, completionMsg.c_str()); });
+
+    if (!BuildStageFromMaxNodes(writeJobContext, primsToNodes, primsToMaterialBind, progressBar)) {
+        // export was cancelled
+        cancelled = true;
+        stage.Reset();
+        return stage;
+    }
+
+    // Set the first valid prim as default prim.
+    if (!stage->HasDefaultPrim()) {
+        pxr::UsdPrimSiblingRange allChildren
+            = stage->GetPrimAtPath(pxr::SdfPath::AbsoluteRootPath()).GetAllChildren();
+
+        for (const auto& prim : allChildren) {
+            // Only prims which originate from 3dsMax nodes should be used as default prims.
+            // For example, prototype prims (classes), should not be considered.
+            if (primsToNodes.find(prim.GetPath()) == primsToNodes.end() || !prim.IsValid()) {
+                continue;
+            }
+            stage->SetDefaultPrim(prim);
+            break;
+        }
+    }
+
+    if (buildOptions.GetTranslateMaterials()) {
+        pxr::MaxUsdTranslatorMaterial::ExportMaterials(
+            writeJobContext, primsToMaterialBind, progressBar);
+    }
+
+    // Report that we are running chasers...
+    progressBar.UpdateProgress(
+        progressBar.GetTotal(), false, GetString(IDS_EXPORT_CHASERS_PROGRESS_MESSAGE));
+
+    // call chasers
+    // populate the chasers and run post export
+    std::vector<std::pair<std::string, pxr::MaxUsdExportChaserRefPtr>> chasers;
+    pxr::MaxUsdExportChaserRegistry::FactoryContext                    ctx(
+        stage, primsToNodes, buildOptions, filename);
+    // for available chasers to load if not done already
+    pxr::MaxUsdExportChaserRegistry::GetAllRegisteredChasers();
+    for (const std::string& chaserName : buildOptions.GetChaserNames()) {
+        if (pxr::MaxUsdExportChaserRefPtr fn
+            = pxr::MaxUsdExportChaserRegistry::Create(chaserName, ctx)) {
+            chasers.push_back(std::make_pair(chaserName, fn));
+        } else {
+            MaxUsd::Log::Error("Failed to create chaser: {0}", chaserName.c_str());
+        }
+    }
+
+    for (const auto& chaser : chasers) {
+        if (chaser.second->PostExport()) {
+            MaxUsd::Log::Info("Successfully executed PostExport() for {0}", chaser.first);
+        } else {
+            MaxUsd::Log::Error("Failed executing PostExport() for {0}", chaser.first);
+        }
+    }
+
+    editedLayers = writeJobContext.GetLayerMap();
+
+    return stage;
+}
+
+struct NodeToExportStackItem
+{
+    INode*                                       nodeToExport;
+    std::shared_ptr<MaxUsd::UniqueNameGenerator> nameGenerator;
+    pxr::SdfPath                                 parentPrimPath;
+    // Keep track of the highest ancester in the hierarchy which is hidden.
+    // If none, this wil remain null.
+    INode* hiddenAncestor;
+};
+
+int USDSceneBuilder::GetNumberOfNodeToExport(const USDSceneBuilderOptions& buildOptions)
+{
+    switch (buildOptions.GetContentSource()) {
+    case USDSceneBuilderOptions::ContentSource::Selection: return coreInterface->GetSelNodeCount();
+    case USDSceneBuilderOptions::ContentSource::NodeList:
+        return buildOptions.GetNodesToExport().Count();
+    case USDSceneBuilderOptions::ContentSource::RootNode: return MaxUsd::GetSceneObjectCount();
+    default: DbgAssert(_T("Unhandled content source data type"));
+    }
+
+    return 0;
+}
+
+bool USDSceneBuilder::ReuseParentPrimForInstancing(const TranslationContext& context)
+{
+    if (context.parentPrimPath.IsAbsoluteRootPath()) {
+        return false;
+    }
+
+    INode* parentNode = context.node->GetParentNode();
+    if (parentNode == nullptr || parentNode->IsRootNode() || parentNode->NumberOfChildren() > 1) {
+        return false;
+    }
+
+    Object* parentObject = parentNode->EvalWorldState(context.timeConfig.GetStartTime()).obj;
+    if (parentObject->ClassID() != POINTHELPER_TYPE_ID) {
+        return false;
+    }
+
+    // Check for conflicts on the usd-metadata (usd_kind, usd_hidden, etc.). This meta-data is not
+    // animatable, so we can simply look for a conflict at the start frame.
+    const auto childObject = context.node->EvalWorldState(context.timeConfig.GetStartTime()).obj;
+    if (MaxUsd::MetaData::CheckForConflict(
+            childObject, parentObject, context.timeConfig.GetStartTime())) {
+        return false;
+    }
+
+    return true;
+}
+
+bool USDSceneBuilder::BuildStageFromMaxNodes(
+    pxr::MaxUsdWriteJobContext&                                     writeJobContext,
+    pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap& primToNodeMap,
+    pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>&               primsToMaterialBind,
+    MaxProgressBar&                                                 progress)
+{
+    std::map<INode*, pxr::SdfPath> exportedNodesToPrims;
+    auto rootNamesGenerator = std::make_shared<MaxUsd::UniqueNameGenerator>();
+
+    auto& buildOptions = writeJobContext.GetArgs();
+
+    std::stack<NodeToExportStackItem> nodeToExportStack;
+    auto                              pushNodeChildrensToExportStack =
+        [&nodeToExportStack, &buildOptions, this, &rootNamesGenerator](
+            INode* node, const pxr::SdfPath& parentPrimPath, INode* parentHiddenAncestor) {
+            // If exporting the selection or from a node list, nodes that don't have their parents
+            // selected end up being exported at the root level. They use the same name generator to
+            // ensure that their generated prim paths are unique.
+            std::shared_ptr<MaxUsd::UniqueNameGenerator> nameGenerator;
+            if (!nodesToExportSet.empty()
+                && (node->IsRootNode() || nodesToExportSet.find(node) == nodesToExportSet.end())) {
+                nameGenerator = rootNamesGenerator;
+            } else {
+                nameGenerator = std::make_shared<MaxUsd::UniqueNameGenerator>();
+            }
+
+            std::unordered_set<std::wstring> names;
+            std::list<INode*>                children;
+            std::list<INode*>                childrenWithNameConflict;
+
+            for (int i = 0; i < node->NumberOfChildren(); ++i) {
+                const auto child = node->GetChildNode(i);
+                const auto name = child->GetName();
+                // No conflict -> add to the front of the list.
+                if (names.find(name) == names.end()) {
+                    names.emplace(name);
+                    children.emplace_front(child);
+                    continue;
+                }
+                // Conflict -> add to the end of the list.
+                childrenWithNameConflict.emplace_front(child);
+            }
+
+            // As we go down the hierarchy, we want to keep track if an ancestor in the
+            // node's hierarchy was hidden so we can warn users in case we cannot export
+            // the visibility correctly, which may be the case as in USD, visibility is
+            // inherited, whereas it is not in 3dsMax. If we are not using USD visibility
+            // to match the max node's hidden state, no need to track this. As no USD prim
+            // will be flagged as invisible by the exporter.
+            INode* hiddenAncestor = nullptr;
+            if (buildOptions.GetUseUSDVisibility()) {
+                if (parentHiddenAncestor) {
+                    hiddenAncestor = parentHiddenAncestor;
+                } else {
+                    if (node->IsNodeHidden()) {
+                        hiddenAncestor = node;
+                    }
+                }
+            }
+
+            // If the name was already used by a sibling, we must use another. We do not need to
+            // worry about "stealing" the name of a sibling not traversed yet, as we made sure to
+            // process siblings with conflicting names at the very end by pushing them deeper in the
+            // stack of node to be exported.
+            for (auto it = childrenWithNameConflict.begin(); it != childrenWithNameConflict.end();
+                 ++it) {
+                NodeToExportStackItem nodeStackItem {
+                    *it, nameGenerator, parentPrimPath, hiddenAncestor
+                };
+                nodeToExportStack.push(nodeStackItem);
+            }
+
+            for (auto it = children.begin(); it != children.end(); ++it) {
+                NodeToExportStackItem nodeStackItem {
+                    *it, nameGenerator, parentPrimPath, hiddenAncestor
+                };
+                nodeToExportStack.push(nodeStackItem);
+            }
+        };
+
+    // additional operations to perform on translated prims
+    std::vector<USDSceneBuilder::translationPrimConfigurator_t> primConfigurators;
+    // 3ds Max Usd Custom Attributes to USD Attributes
+    primConfigurators.emplace_back(
+        [this](Object* object) { return true; },
+        [this](const TranslationContext& context, pxr::UsdPrim& translatedPrim) {
+            ConfigureUsdAttributes(context, translatedPrim);
+            ConfigureKind(context.node, translatedPrim);
+        });
+
+    const int numberOfItemToExport = GetNumberOfNodeToExport(buildOptions);
+
+    pxr::SdfPath rootPath(buildOptions.GetRootPrimPath());
+    auto         stage = writeJobContext.GetUsdStage();
+
+    // Unless the absolute root path is used ("/"), we want the root prim to be specified as a
+    // Scope.
+    if (!rootPath.IsAbsoluteRootPath()) {
+        MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            stage, rootPath, pxr::MaxUsdPrimTypeTokens->Xform);
+        // The top level primitive from that path should be our default prim.
+        auto path = rootPath;
+        while (path.GetParentPath() != pxr::SdfPath::AbsoluteRootPath()) {
+            path = path.GetParentPath();
+        }
+        stage->SetDefaultPrim(stage->GetPrimAtPath(path));
+    }
+
+    const auto timeConfig = buildOptions.GetResolvedTimeConfig();
+    if (buildOptions.GetTimeMode() == USDSceneBuilderOptions::TimeMode::CurrentFrame
+        && !MaxUsd::MathUtils::IsAlmostZero(static_cast<float>(timeConfig.GetStartFrame()))) {
+        MaxUsd::Log::Warn("The export TimeMode is configured as #current, the specified StartFrame "
+                          "will be ignored.");
+    }
+
+    if (buildOptions.GetTimeMode() == USDSceneBuilderOptions::TimeMode::FrameRange
+        && buildOptions.GetEndFrame() < buildOptions.GetStartFrame()) {
+        MaxUsd::Log::Warn(
+            "A frame range is exported, but the endFrame is smaller than the startFrame, only the "
+            "startFrame will be exported.");
+    }
+
+    // 1) Export preview pass :
+    // Traverse the 3dsMax scene and export the nodes in "preview" mode. This only simulates the
+    // export, figuring out what USD Prims will be created at what paths.
+
+    PrepareExportPass();
+    // Used to collect all the USD prims that will be needed to export the scene.
+    MaxUsd::PrimDefVector scenePrimDefs;
+    scenePrimDefs.reserve(
+        numberOfItemToExport); // May get a bit bigger if nodes need multiple prims.
+
+    // Used to collect all translations that we will need to perform to export everything in the
+    // scene. Basically a Max node, and where it needs to be exported in the USD Hierarchy.
+    std::vector<TranslationContext> translationItems;
+
+    // Traverse the 3dsMax scene, breadth first.
+    std::unordered_set<INode*> hiddenAncestorsWithVisibleDescendants;
+    INode*                     nodeToConvert = coreInterface->GetRootNode();
+    pushNodeChildrensToExportStack(nodeToConvert, rootPath, nullptr);
+    while (!nodeToExportStack.empty()) {
+        const NodeToExportStackItem& itemToExport = nodeToExportStack.top();
+        nodeToConvert = itemToExport.nodeToExport;
+
+        // Warn if visibility cannot be exported correctly (visibility is inherited in USD but not
+        // in 3dsMax). Make sure to only warn once per problematic hierarchy.
+        if (itemToExport.hiddenAncestor && !nodeToConvert->IsNodeHidden()
+            && hiddenAncestorsWithVisibleDescendants.find(itemToExport.hiddenAncestor)
+                == hiddenAncestorsWithVisibleDescendants.end()) {
+            MaxUsd::Log::Warn(
+                L"Node {0} is hidden but has visible descendants. Because in USD visibility is "
+                L"inherited, this "
+                L"may lead to objects visible in 3dsMax being hidden in USD.",
+                itemToExport.hiddenAncestor->GetName());
+            hiddenAncestorsWithVisibleDescendants.insert(itemToExport.hiddenAncestor);
+        }
+
+        pxr::SdfPath             nodeRootPrimPath;
+        MaxUsd::PrimDefVectorPtr nodePrimSpecs;
+
+        // Check if the node should be excluded from export. If nodesToExportSet is empty, it means
+        // we want to export the entire scene.
+        bool excludeNode = !nodesToExportSet.empty()
+            && nodesToExportSet.find(nodeToConvert) == nodesToExportSet.end();
+
+        const std::string primName
+            = pxr::TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(nodeToConvert->GetName()));
+        const std::string uniquePrimName = itemToExport.nameGenerator->GetName(primName);
+        if (primName != uniquePrimName) {
+            MaxUsd::Log::Warn(
+                L"Found node name conflict, exporting node {0} as {1} instead.",
+                nodeToConvert->GetName(),
+                MaxUsd::UsdStringToMaxString(uniquePrimName).data());
+        }
+
+        if (!excludeNode) {
+            // Preview the export of the node using the "preview" mode.
+            // Just figuring out what prims would get created.
+            TranslationContext translationContext {
+                nodeToConvert, stage, itemToExport.parentPrimPath, uniquePrimName, timeConfig,
+                true // Preview mode.
+            };
+
+            {
+                // Disable logging while exporting nodes in preview mode.
+                const auto scopeGuard = MaxUsd::MakeScopeGuard(
+                    []() { MaxUsd::Log::Pause(); }, []() { MaxUsd::Log::Resume(); });
+
+                bool                   doMtlAssign;
+                MaxUsd::AnimExportTask animTask { buildOptions.GetResolvedTimeConfig() };
+                nodePrimSpecs = ProcessNode(
+                    translationContext,
+                    writeJobContext,
+                    primConfigurators,
+                    stage,
+                    doMtlAssign,
+                    animTask);
+            }
+
+            // Save this translation item for the second pass, which will actually export the node's
+            // data.
+            translationContext.preview = false;
+            translationItems.push_back(translationContext);
+
+            if (nodePrimSpecs && !nodePrimSpecs->empty()) {
+                scenePrimDefs.insert(
+                    scenePrimDefs.end(), nodePrimSpecs->begin(), nodePrimSpecs->end());
+                // The first prim in the vector is the root prim for the node.
+                nodeRootPrimPath = nodePrimSpecs->front().path;
+                if (!nodeRootPrimPath.IsEmpty()) {
+                    primToNodeMap.insert({ nodeRootPrimPath, nodeToConvert });
+                }
+                exportedNodesToPrims.emplace(nodeToConvert, nodeRootPrimPath);
+            }
+        }
+
+        // Remove the node we just exported from the stack
+        nodeToExportStack.pop();
+
+        // Push all the node childrens to the stack to be exported.
+        pushNodeChildrensToExportStack(
+            nodeToConvert,
+            nodeRootPrimPath.IsEmpty() ? rootPath : nodeRootPrimPath,
+            itemToExport.hiddenAncestor);
+    }
+
+    // 2) Prim creation pass :
+    // Create all Prims in a single pass. Using Sdf APIs and batching the creation of all prims
+    // in a single SdfChangeBlock speeds up the export considerably, as all notifications can be
+    // processed at the same time.
+    {
+        pxr::SdfChangeBlock primBatchCreate;
+        for (const auto& primSpec : scenePrimDefs) {
+            if (primSpec.path.IsEmpty()) {
+                continue;
+            }
+            auto prim = pxr::SdfCreatePrimInLayer(stage->GetRootLayer(), primSpec.path);
+            if (primSpec.type == pxr::MaxUsdPrimTypeTokens->Class) {
+                prim->SetSpecifier(pxr::SdfSpecifierClass);
+                prim->SetTypeName(primSpec.type);
+            } else if (primSpec.type == pxr::MaxUsdPrimTypeTokens->Over) {
+                prim->SetSpecifier(pxr::SdfSpecifierOver);
+                // No type name for "over" prims.
+            } else {
+                prim->SetSpecifier(pxr::SdfSpecifierDef);
+                prim->SetTypeName(primSpec.type);
+            }
+        }
+    }
+
+    // 3) Export pass :
+    // Populate the USD prim properties from the nodes' data.
+    // This is where most of the work happens, and where we perform the conversion
+    // of Max content to USD content.
+    writeJobContext.SetNodeToPrimMap(exportedNodesToPrims);
+
+    PrepareExportPass();
+
+    progress.SetTotal(numberOfItemToExport);
+
+    // As we process each node, we accumulate some work that we need to do for each node->prim
+    // translation. Namely, writing the prim attributes, and transforms. Everything else is setup
+    // right away as we process the node. The reason we need to delay the write of attributes and
+    // transforms is we want to evaluate all object and transforms at a time "t" at the same time,
+    // to benefit from 3dsmax's caching of the world state. AnimExportTask accepts work that needs
+    // to be run at a certain time, it then makes sure to batch all the work that needs to evaluate
+    // max data at the same time together.
+    MaxUsd::AnimExportTask timeSamplesExportTask { buildOptions.GetResolvedTimeConfig() };
+
+    const auto prepareExportProgressMsg = GetString(IDS_EXPORT_PREPARING_EXPORT);
+    int        progressIndex = 0;
+    for (const auto& translationItem : translationItems) {
+        // Stop the import in its current state if the User chose to cancel it.
+        // NOTE: This will result in partially-loaded content, which may require additional handling
+        // to make sure the User understands that this may cause side-effects.
+        if (coreInterface->GetCancel()) {
+            MaxUsd::Log::Info("USD Export cancelled.");
+            return false;
+        }
+        bool       doMtlAssign = false;
+        const auto prims = ProcessNode(
+            translationItem,
+            writeJobContext,
+            primConfigurators,
+            stage,
+            doMtlAssign,
+            timeSamplesExportTask);
+
+        // Report to the caller if the prim associated with this node should be considered for
+        // material assignment.
+        if (prims && !prims->empty()) {
+            // Two cases.
+            // 1) The node is not an instance, perform material on the node if ExportNode() tells us
+            // we should. 2) The node is an instance, ExportNode() will only return doAssignMaterial
+            // = true for the first instances (assuming the translated object should be assigned a
+            // material), as the prim writer is only queried / executed for the first instance.
+            // Subsequent instances just point to the already created class prim, and the prim
+            // writer is not involved. For this reason, in the case of instances, we keep track of
+            // the doAssignMaterial material returned for the first instances.
+
+            // A lambda to find the prototype (class) prim used by a given prim. The passed prim is
+            // assumed to be the top level prim for a node. Depending on the export scenario (object
+            // offset, xform split, etc. the instance prim can be that prim directly, or its first
+            // child.
+            auto findPrototypePrim = [this, stage](const pxr::SdfPath& primPath) {
+                const auto protoIt = instanceToPrototype.find(primPath);
+                if (protoIt != instanceToPrototype.end()) {
+                    return protoIt->second;
+                }
+                const auto  prim = stage->GetPrimAtPath(primPath);
+                const auto& children = prim.GetChildren();
+                if (!children.empty()) {
+                    const auto& path = children.front().GetPath();
+                    const auto  it = instanceToPrototype.find(path);
+                    if (it != instanceToPrototype.end()) {
+                        return it->second;
+                    }
+                }
+                // No instancing.
+                return pxr::SdfPath {};
+            };
+
+            const auto& nodeRoot = prims->front();
+            auto        protoPrim = findPrototypePrim(nodeRoot.path);
+
+            // Handle instancing scenario.
+            if (!protoPrim.IsEmpty()) {
+                // First instance, store info that instances of this prototype should have materials
+                // assigned.
+                if (doMtlAssign) {
+                    prototypeMaterialReq.insert(protoPrim);
+                } else {
+                    const auto it = prototypeMaterialReq.find(protoPrim);
+                    if (it != prototypeMaterialReq.end()) {
+                        doMtlAssign = true;
+                    }
+                }
+            }
+
+            if (doMtlAssign) {
+                primsToMaterialBind.insert(nodeRoot.path);
+            }
+        }
+
+        progress.UpdateProgress(++progressIndex, true, prepareExportProgressMsg);
+    }
+
+    // Export time sample data.
+    timeSamplesExportTask.Execute(progress);
+
+    // 4) Instancing setup pass :
+    // Set up instancing properties. This triggers stage notifications, which can dramatically
+    // slow down the export, for this reason, we wrap all these in a SdfChangeBlock, so that
+    // the stage can process all the notifications at the same time, quickly.
+    {
+        pxr::SdfChangeBlock instancingSetup;
+        for (const auto& pair : instanceToPrototype) {
+            auto prim = stage->GetPrimAtPath(pair.first);
+            prim.GetInherits().AddInherit(pair.second);
+            prim.SetInstanceable(true);
+        }
+    }
+
+    return true;
+}
+
+MaxUsd::PrimDefVectorPtr USDSceneBuilder::ProcessNode(
+    const TranslationContext&                                          context,
+    const pxr::MaxUsdWriteJobContext&                                  writeJobContext,
+    const std::vector<USDSceneBuilder::translationPrimConfigurator_t>& primConfigurators,
+    const pxr::UsdStageRefPtr&                                         stage,
+    bool&                                                              doAssignMaterial,
+    MaxUsd::AnimExportTask&                                            animExportTask)
+{
+    MaxUsd::PrimDefVectorPtr exportedPrims;
+
+    // Translate the node using the first matching operator:
+    bool translationHandled = false;
+
+    // Dummy object evaluation to work around an animation controller issue present in 3dsMax,
+    // some controllers will wrongly report an "instantaneous" interval the first time they are
+    // queried. This dummy evaluation might be wrong, but the next one will be correct. We only
+    // ever need to do this one, so do it here.
+    context.node->EvalWorldState(context.timeConfig.GetStartTime() - 1);
+    const auto object = context.node->EvalWorldState(context.timeConfig.GetStartTime()).obj;
+
+    const auto& buildOptions = writeJobContext.GetArgs();
+
+    // Check if we need to export the node, if it is hidden.
+    if (buildOptions.GetTranslateHidden() || !context.node->IsNodeHidden()) {
+        size_t numRegisteredWriters = 0;
+
+        auto primWriter = pxr::MaxUsdPrimWriterRegistry::FindWriter(
+            writeJobContext, context.node, numRegisteredWriters);
+
+        if (primWriter) {
+            if (numRegisteredWriters > 1) {
+                MaxUsd::Log::Info(
+                    L"Multiple registered prim writers can support node {0}, using {1}.",
+                    context.node->GetName(),
+                    primWriter->GetWriterName().data());
+            }
+
+            const auto targetRootPath = buildOptions.GetRootPrimPath();
+
+            exportedPrims = WriteNodePrims(
+                [this, &primWriter, &doAssignMaterial, &animExportTask, &buildOptions](
+                    const TranslationContext& context, bool applyOffsetTransform) {
+                    // Ask the writer about the prim's type and name for this node.
+                    const auto resolvedPrimName = pxr::TfToken(
+                        pxr::TfMakeValidIdentifier(primWriter->GetPrimName(context.primName)));
+                    const auto primType = primWriter->GetPrimType();
+
+                    MaxUsd::PrimDef targetPrim {
+                        context.parentPrimPath.AppendChild(resolvedPrimName), primType
+                    };
+
+                    // In preview, only interested to know where the prim will be exported, and what
+                    // it's type is.
+                    if (context.preview) {
+                        return targetPrim;
+                    }
+
+                    // Get the prim that was created for us.
+                    auto usdPrim = context.stage->GetPrimAtPath(targetPrim.path);
+                    if (!usdPrim.IsValid()) {
+                        MaxUsd::Log::Error(
+                            L"Unable to write the 3dsMax node \"{0}\" to the prim at {1}. This "
+                            L"prim is no "
+                            L"longer valid. It may have been pruned by the actions of a prim "
+                            L"writer.",
+                            context.node->GetName(),
+                            MaxUsd::UsdStringToMaxString(targetPrim.path.GetString()).data());
+                        return targetPrim;
+                    }
+
+                    doAssignMaterial = primWriter->RequiresMaterialAssignment()
+                        == MaxUsd::MaterialAssignRequirement::Default;
+
+                    // Before we hand off the prim to the prim writer, apply the object offset
+                    // transform. Do this now because if the prim writer needs to add a transform to
+                    // the stack part of the object's translation, in most cases it will need to be
+                    // added after the object offset, so we are making their job easier. If needed,
+                    // the writer can specify that it wants to handle the object offset transform
+                    // itself (for example we use this feature when baking the object offset
+                    // transform into the geometry). Avoid adding object offset transforms for
+                    // groups, special case.
+                    const auto writerHandlesOffset = primWriter->HandlesObjectOffsetTransform();
+                    if (!writerHandlesOffset && applyOffsetTransform
+                        && !context.node->IsGroupHead()) {
+                        // The "root" primitive object are exported to, should always be Xformable.
+                        if (!usdPrim.IsA<pxr::UsdGeomXformable>()) {
+                            MaxUsd::Log::Error(
+                                "The prim created for the node \"{0}\" is not an Xformable, "
+                                "unable to apply the object offset.");
+                        } else {
+                            pxr::UsdGeomXformable xformable { usdPrim };
+                            MaxUsd::ApplyObjectOffsetTransform(
+                                context.node, xformable, context.timeConfig.GetStartTime());
+                        }
+                    }
+
+                    // If the writer requested to handle the object offset transform, let it know if
+                    // it should apply it or not part of this translation (for example, we never
+                    // want to apply object offsets to instanced prims directly).
+                    const auto requestApplyOffset = applyOffsetTransform && writerHandlesOffset;
+
+                    auto node = context.node;
+
+                    // Queue the work of writing the node properties to the prim - it will be
+                    // batched with other translation operations needing to be done at the same
+                    // 3dsMax time values (we figure this out from the validity intervals). This
+                    // prevents us re-evaluating the same objects multiple times at the same time
+                    // values.
+                    animExportTask.AddObjectExportOp(
+                        [primWriter](TimeValue time) {
+                            return primWriter->GetValidityInterval(time);
+                        },
+                        [primWriter, node, usdPrim, requestApplyOffset](
+                            const MaxUsd::ExportTime time) mutable {
+                            if (!primWriter->Write(usdPrim, requestApplyOffset, time)) {
+                                MaxUsd::Log::Error(
+                                    L"Failed to write the prim properties for {0} as time {1}.",
+                                    node->GetName(),
+                                    std::to_wstring(time.GetUsdTime().GetValue()));
+                            }
+                        },
+                        [primWriter, node, usdPrim]() mutable {
+                            if (!primWriter->PostExport(usdPrim)) {
+                                MaxUsd::Log::Error(
+                                    L"Failed to execute post export for {0}.", node->GetName());
+                            }
+                        });
+
+                    return targetPrim;
+                },
+                context,
+                primWriter->GetObjectPrimSuffix(),
+                primWriter->RequiresXformPrim(),
+                primWriter->RequiresInstancing(),
+                targetRootPath);
+
+            if (!exportedPrims->empty() && !exportedPrims->front().path.IsEmpty()) {
+                translationHandled = true;
+            }
+        }
+    }
+    // If the object type was not handled (either it is not supported or it is excluded
+    // from the export), we might still need to export it as an Xform if it has children
+    // so that any of its exported descendants will have the correct transforms.
+    if (!translationHandled) {
+        if (HasExportableDescendants(context.node, buildOptions)) {
+            MaxUsd::PrimDef primSpec
+                = { context.parentPrimPath.AppendChild(pxr::TfToken(context.primName)),
+                    pxr::MaxUsdPrimTypeTokens->Xform };
+
+            exportedPrims = std::make_shared<MaxUsd::PrimDefVector>();
+            exportedPrims->push_back(primSpec);
+            if (context.preview) {
+                return exportedPrims;
+            }
+            MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+                stage, primSpec.path, pxr::MaxUsdPrimTypeTokens->Xform);
+            translationHandled = true;
+            MaxUsd::Log::Info(
+                L"Node {0} will be exported to a Xform prim. It is either excluded from export by "
+                L"configuration or unsupported, but it has exported descendants.",
+                context.node->GetName());
+        } else {
+            MaxUsd::Log::Info(
+                L"Node {0} will be skipped. It is either excluded from export by configuration or "
+                L"unsupported.",
+                context.node->GetName());
+        }
+    }
+
+    if (translationHandled) {
+        auto nodeRootPrimPath = exportedPrims->front().path;
+
+        pxr::UsdPrim prim = stage->GetPrimAtPath(nodeRootPrimPath);
+        if (prim.IsValid()) {
+            if (!prim.IsA<pxr::UsdGeomXformable>()) {
+                MaxUsd::Log::Error(
+                    L"The root primitive created for node {0} is not Xformable. Unable to apply "
+                    L"the node's transform.",
+                    context.node->GetName());
+            } else {
+
+                // Compute object transforms:
+                pxr::UsdGeomXformable xFormPrim(prim);
+
+                // Setup the USD visibility, from the Max node's hidden state, if requested.
+                if (context.node->IsNodeHidden() && buildOptions.GetUseUSDVisibility()) {
+                    xFormPrim.MakeInvisible(pxr::UsdTimeCode::Default());
+                }
+
+                // Queue the work of writing the node's transform - it will be batched with other
+                // translation operations needing to be done at the same 3dsMax time values (we
+                // figure this out from the validity intervals). This prevents us re-evaluating the
+                // same objects multiple times at the same time values.
+                auto node = context.node;
+                animExportTask.AddTransformExportOp(
+                    [&buildOptions, node, xFormPrim](
+                        const MaxUsd::ExportTime& time, pxr::UsdGeomXformOp& usdGeomXFormOp) {
+                        pxr::GfMatrix4d maxTransformMatrix
+                            = MaxUsd::ToUsd(node->GetNodeTM(time.GetMaxTime()));
+                        MaxUsd::MathUtils::RoundMatrixValues(
+                            maxTransformMatrix, std::numeric_limits<float>::digits10);
+
+                        if (buildOptions.GetUpAxis() == USDSceneBuilderOptions::UpAxis::Y) {
+                            MaxUsd::MathUtils::ModifyTransformZToYUp(maxTransformMatrix);
+                        }
+
+                        // Compute the local transform of the prim. The current transform in the
+                        // hierarchy (i.e. the world transform of the parent).
+                        pxr::GfMatrix4d parentWorldTransform;
+                        parentWorldTransform.SetIdentity();
+
+                        const auto parentNode = node->GetParentNode();
+                        if (parentNode && !parentNode->IsRootNode()) {
+                            parentWorldTransform = MaxUsd::GetNodeTransform(
+                                parentNode,
+                                time.GetMaxTime(),
+                                buildOptions.GetUpAxis() == USDSceneBuilderOptions::UpAxis::Y);
+                        }
+
+                        // The parent transform must be invertible for us to be able to compute the
+                        // local transform. A matrix with a non-zero determinant is invertible.
+                        if (parentWorldTransform.GetDeterminant() != 0.0) {
+                            pxr::GfMatrix4d transformMatrix
+                                = maxTransformMatrix * parentWorldTransform.GetInverse();
+                            // If exporting a single frame, no need to specify the transform if it
+                            // is the identity. When exporting an animation, we need to, as the
+                            // transform might change over time. If the frame at the identity was
+                            // not exported, the transform at that frame would be interpolated from
+                            // other authored frames, which would be wrong.
+                            const auto timeConfig = buildOptions.GetResolvedTimeConfig();
+                            if (!MaxUsd::MathUtils::IsIdentity(transformMatrix)
+                                || timeConfig.IsAnimated()) {
+                                bool         resetsXformStack = false;
+                                const size_t nbOfOps
+                                    = xFormPrim.GetOrderedXformOps(&resetsXformStack).size();
+                                if (!usdGeomXFormOp.IsDefined()) {
+                                    usdGeomXFormOp = xFormPrim.AddXformOp(
+                                        pxr::UsdGeomXformOp::TypeTransform,
+                                        pxr::UsdGeomXformOp::PrecisionDouble,
+                                        nbOfOps > 0 ? pxr::TfToken("t" + std::to_string(nbOfOps))
+                                                    : pxr::TfToken());
+                                }
+                                usdGeomXFormOp.Set(transformMatrix, time.GetUsdTime());
+                            }
+                        } else {
+                            MaxUsd::Log::Error(
+                                std::wstring(L"The parent prim of ") + node->GetName()
+                                + std::wstring(L" has a non-invertible world transform matrix. "
+                                               L"Unable to compute its local transform at frame ")
+                                + std::to_wstring(
+                                    double(time.GetMaxTime()) / double(GetTicksPerFrame())));
+                        }
+                    });
+            }
+
+            for (const auto& configuratorStep : primConfigurators) {
+                if (configuratorStep.AppliesToObject(object)) {
+                    configuratorStep.Execute(context, prim);
+                    break;
+                }
+            }
+            MaxUsd::Log::Info(
+                L"Exported node {0} to {1}.",
+                context.node->GetName(),
+                MaxUsd::UsdStringToMaxString(nodeRootPrimPath.GetString()).data());
+        }
+    }
+    return exportedPrims;
+}
+
+bool USDSceneBuilder::HasExportableDescendants(
+    INode*                        node,
+    const USDSceneBuilderOptions& buildOptions)
+{
+    // Check if we already have the answer in the cache.
+    const auto it = hasExportableDescendantsMap.find(node);
+    if (it != hasExportableDescendantsMap.end()) {
+        return it->second;
+    }
+
+    bool exportableHierarchy = false;
+    // If we are exporting from a node list, make sure the node should be considered.
+    if (nodesToExportSet.empty() || nodesToExportSet.find(node) != nodesToExportSet.end()) {
+        // Should the node be ignored because it is hidden?
+        if (!node->IsNodeHidden() || buildOptions.GetTranslateHidden()) {
+            // Check if any of the translation operations apply to the node's object. If so, it is
+            // considered exportable.
+            exportableHierarchy = pxr::MaxUsdPrimWriterRegistry::CanBeExported(node, buildOptions);
+        }
+    }
+
+    // If the given node itself is not exportable, we must check its children, we do so via
+    // recursion.
+    if (!exportableHierarchy) {
+        for (int i = 0; i < node->NumChildren(); ++i) {
+            auto childNode = node->GetChildNode(i);
+            // If exporting from the a node list, check if the child should be considered. If not,
+            // we must stop the recursion, as if any descendants are exported, they will be parented
+            // at the root, and so not part of the nodes sub-hierarchy on the USD side. Example :
+            // Node A (Selected)
+            //    - Node B
+            //       - Node C (Selected)
+            // Will export to :
+            // - Prim Node A
+            // - Prim Node C (same level as Node A in the USD hierarchy)
+            if (!nodesToExportSet.empty()
+                && nodesToExportSet.find(childNode) == nodesToExportSet.end()) {
+                continue;
+            }
+
+            if (HasExportableDescendants(childNode, buildOptions)) {
+                exportableHierarchy = true;
+                break;
+            }
+        }
+    }
+
+    hasExportableDescendantsMap.insert({ node, exportableHierarchy });
+    return exportableHierarchy;
+}
+
+MaxUsd::PrimDefVectorPtr USDSceneBuilder::WriteNodePrims(
+    std::function<MaxUsd::PrimDef(const TranslationContext&, bool applyOffsetTransform)>
+                                         createObjectPrim,
+    const TranslationContext&            context,
+    const std::string&                   objectPrimSuffix,
+    const MaxUsd::XformSplitRequirement& xformRequirement,
+    const MaxUsd::InstancingRequirement& instancingRequirement,
+    const pxr::SdfPath&                  rootPrim)
+{
+    bool isInstanceableNode
+        = maxNodeToClassPrimMap.find(context.node) != maxNodeToClassPrimMap.end();
+
+    bool            createdClass = false;
+    MaxUsd::PrimDef instanceObjectPrimSpec;
+    MaxUsd::PrimDef classPrimSpec;
+
+    INodeTab instanceNodes;
+
+    // Create the class prim if it is the first time we identify this node as being instanceable.
+    //  i.e. The node was not previously in the map and we found other node that can be exported as
+    //  instance of each other.
+    if (instancingRequirement == MaxUsd::InstancingRequirement::Default && !isInstanceableNode
+        && MaxUsd::FindInstanceableNodes(context.node, instanceNodes, nodesToExportSet)) {
+        isInstanceableNode = true;
+
+        std::string classPrimName
+            = "_class_" + classPrimBaseNameGenerator.GetName(context.primName);
+        const pxr::SdfPath classPrimPath = rootPrim.AppendChild(pxr::TfToken(classPrimName));
+
+        classPrimSpec = { classPrimPath, pxr::MaxUsdPrimTypeTokens->Class };
+
+        if (!context.preview) {
+            context.stage->CreateClassPrim(classPrimPath);
+        }
+
+        TranslationContext objectContext { context.node,     context.stage,      classPrimPath,
+                                           context.primName, context.timeConfig, context.preview };
+
+        instanceObjectPrimSpec = createObjectPrim(objectContext, false);
+
+        // Populate the map for every instance node we found to avoid searching later when we
+        // encounter them.
+        for (int i = 0; i < instanceNodes.Count(); i++) {
+            maxNodeToClassPrimMap.insert(
+                std::pair<INode*, pxr::SdfPath>(instanceNodes[i], classPrimPath));
+        }
+
+        createdClass = true;
+    }
+
+    pxr::SdfPath currentPrimPath = context.parentPrimPath;
+    // This will keep track of all the prims that were created on export to represent the max node.
+    MaxUsd::PrimDefVectorPtr exportedPrimPaths = std::make_shared<MaxUsd::PrimDefVector>();
+    bool                     applyObjectPrimSuffix = false;
+
+    const Matrix3 offsetTransform = MaxUsd::GetMaxObjectOffsetTransform(context.node);
+
+    // Create a prim for the node's object if necessary. In some cases, it is possible to export
+    // a node and its object to a single USD prim. In others we need to keep them separate, most
+    // often because of the inheritance rules, indeed only the Node's transform should be inherited.
+    bool isIdentityOffset = MaxUsd::MathUtils::IsIdentity(offsetTransform);
+
+    // If a WSM is applied and the object is not at the identity transform, we might need to
+    // transform the geometry's points back into local space (with the inverse of the node's
+    // transform), so that with the inherited transforms from the USD hierarchy, the overall
+    // transforms of the points are correct.
+    const bool wsmTransformToLocal
+        = MaxUsd::WsmRequiresTransformToLocalSpace(context.node, context.timeConfig.GetStartTime());
+
+    // 1) Prim writers can specify their needs of having a dedicated xform to encode the node's
+    // transform. If the requirement from the writer is "ForOffsetObjects", two interesting cases :
+    // - If the offset is the identity, no need to create a prim for the offset.
+    // - If there is a WSM, the vertices are already transformed to world space, the offset already
+    // considered.
+    bool objectXformRequiredFromConfig = (xformRequirement == MaxUsd::XformSplitRequirement::Always)
+        || (xformRequirement == MaxUsd::XformSplitRequirement::ForOffsetObjects && !isIdentityOffset
+            && !wsmTransformToLocal);
+
+    // 2) When instancing a USD prim, it cannot have children, as they would be ignored. And we cant
+    // bake the offset into the geometry, as it is reused. therefore if there are any children, or
+    // if the offset is not the identity, we must create a separate prim for the object, so that it
+    // can be instanced.
+    bool objectXFormRequiredFromInstancing
+        = isInstanceableNode && (!isIdentityOffset || context.node->NumChildren() > 0);
+
+    // 3) Need an extra Xform for objects exported as guides. In USD, the purpose is inherited, so
+    // to avoid any children of the object exported as guides to also be set as guide, we use an
+    // extra XForm. Later in this function, some objects (for now, only bones) will be set as
+    // guides, to avoid them being rendered unless explicitly requested. Geometry set as
+    // non-renderable will also be set as guides.
+    bool isGuideObject
+        = MaxUsd::IsBoneObject(context.node->EvalWorldState(context.timeConfig.GetStartTime()).obj)
+        || context.node->Renderable() == 0;
+
+    if (objectXformRequiredFromConfig || objectXFormRequiredFromInstancing || isGuideObject) {
+        pxr::SdfPath xformPrimPath = currentPrimPath.AppendChild(pxr::TfToken(context.primName));
+
+        if (!context.preview) {
+            MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+                context.stage, xformPrimPath, pxr::MaxUsdPrimTypeTokens->Xform);
+        }
+
+        applyObjectPrimSuffix = true;
+        currentPrimPath = xformPrimPath;
+        exportedPrimPaths->push_back({ xformPrimPath, pxr::MaxUsdPrimTypeTokens->Xform });
+    }
+
+    // if it is an instanceable node, find or create the prim that will inherit from the class prim
+    if (isInstanceableNode) {
+        // Reuse the parent prim if no prim was created for object transform and we identify
+        // that the prim should be reused for instancing.
+        pxr::SdfPath instancePrimPath;
+
+        if (exportedPrimPaths->empty() && ReuseParentPrimForInstancing(context)) {
+            instancePrimPath = context.parentPrimPath;
+        } else {
+            instancePrimPath = currentPrimPath.AppendChild(pxr::TfToken(pxr::TfMakeValidIdentifier(
+                applyObjectPrimSuffix ? context.primName + "_" + objectPrimSuffix
+                                      : context.primName)));
+        }
+
+        exportedPrimPaths->push_back({ instancePrimPath, pxr::MaxUsdPrimTypeTokens->Xform });
+
+        pxr::SdfPath prototypePrimPath = maxNodeToClassPrimMap[context.node];
+
+        // If we created the class while exporting this instance, add it to the created prims
+        // following the order of the hierarchy.
+        if (createdClass) {
+            exportedPrimPaths->push_back(classPrimSpec);
+            exportedPrimPaths->push_back(instanceObjectPrimSpec);
+        }
+
+        if (context.preview) {
+            return exportedPrimPaths;
+        }
+
+        pxr::UsdGeomXformable xformable = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            context.stage, instancePrimPath, pxr::MaxUsdPrimTypeTokens->Xform);
+
+        // Postpone setting up the instanceable & inherit required on the prim for instancing to
+        // avoid triggering notifications on each instance. We will do this all at once within an
+        // SdfChangeBlock at the end of the export.
+        auto xformPath = xformable.GetPrim().GetPath();
+        instanceToPrototype.insert({ xformPath, prototypePrimPath });
+
+        // The timeValue passed is used to check for a WSM, in which case we would not need to apply
+        // an offset transform. Whether or not a WSM is applied is not animatable, so we can just
+        // consider it at the startFrame.
+        MaxUsd::ApplyObjectOffsetTransform(
+            context.node, xformable, context.timeConfig.GetStartTime());
+
+        // The root prim created for the node is at .front(). This prim will be where the node
+        // object transform will be applied. This should be the instance prim unless we had unbaked
+        // offset transform to manage. If this is the case, the front prim should be an xform prim
+        // with as children the instance prim which contains the offset transform.
+        return exportedPrimPaths;
+    }
+
+    TranslationContext objectContext {
+        context.node,
+        context.stage,
+        currentPrimPath,
+        pxr::TfMakeValidIdentifier(
+            applyObjectPrimSuffix ? context.primName + "_" + objectPrimSuffix : context.primName),
+        context.timeConfig,
+        context.preview
+    };
+
+    MaxUsd::PrimDef createdPrimPath = createObjectPrim(objectContext, true);
+
+    if (isGuideObject && !context.preview) {
+        const auto imageable
+            = pxr::UsdGeomImageable(context.stage->GetPrimAtPath(createdPrimPath.path));
+        imageable.CreatePurposeAttr().Set(pxr::UsdGeomTokens->guide);
+    }
+    exportedPrimPaths->push_back(createdPrimPath);
+
+    // The root prim created for the node is at .front(). This prim will be where the node object
+    // transform will be applied. This should be the prim created by createObjectPrim unless we had
+    // unbaked offset transform to manage. If this is the case, the front prim should be an xform
+    // prim with as children the prim created by createObjectPrim.
+    return exportedPrimPaths;
+}
+
+void USDSceneBuilder::PrepareExportPass()
+{
+    maxNodeToClassPrimMap.clear();
+    classPrimBaseNameGenerator.Reset();
+}
+
+void USDSceneBuilder::ConfigureUsdAttributes(
+    const TranslationContext& translationContext,
+    pxr::UsdPrim&             translatedPrim)
+{
+    const auto    object = translationContext.node->GetObjectRef();
+    bool          hiddenFound = false, kindFound = false, purposeFound = false;
+    IParamBlock2* usdCustomAttributePb = nullptr;
+    // Get non-animatable metadata, we first look at all the modifiers from top to bottom
+    // until we find at least one of each of the attributes we're looking for.
+    if (object != nullptr && object->SuperClassID() == GEN_DERIVOB_CLASS_ID) {
+        const auto derivedObj = dynamic_cast<IDerivedObject*>(object);
+        for (int i = 0; i < derivedObj->NumModifiers(); i++) {
+            usdCustomAttributePb
+                = MaxUsd::MetaData::FindUsdCustomAttributeParamBlock(derivedObj->GetModifier(i));
+            if (usdCustomAttributePb != nullptr) {
+                if (!hiddenFound) {
+                    hiddenFound = MaxUsd::SetPrimHiddenFromCA(usdCustomAttributePb, translatedPrim);
+                }
+                if (!kindFound) {
+                    kindFound = MaxUsd::SetPrimKindFromCA(usdCustomAttributePb, translatedPrim);
+                }
+                if (!purposeFound) {
+                    purposeFound
+                        = MaxUsd::SetPrimPurposeFromCA(usdCustomAttributePb, translatedPrim);
+                }
+            }
+            // We found all of them, stop the loop.
+            if (hiddenFound && kindFound && purposeFound) {
+                return;
+            }
+        }
+    }
+
+    // We didn't find all of the attribute, let's look at the base object
+    const auto baseObject = object->FindBaseObject();
+    usdCustomAttributePb = MaxUsd::MetaData::FindUsdCustomAttributeParamBlock(baseObject);
+
+    if (usdCustomAttributePb == nullptr) {
+        // no paramblock with usd custom attributes found, skip.
+        return;
+    }
+
+    if (!hiddenFound) {
+        MaxUsd::SetPrimHiddenFromCA(usdCustomAttributePb, translatedPrim);
+    }
+    if (!kindFound) {
+        MaxUsd::SetPrimKindFromCA(usdCustomAttributePb, translatedPrim);
+    }
+    if (!purposeFound) {
+        MaxUsd::SetPrimPurposeFromCA(usdCustomAttributePb, translatedPrim);
+    }
+}
+
+void USDSceneBuilder::ConfigureKind(INode* node, pxr::UsdPrim& translatedPrim)
+{
+    // Check if kind previously set from custom attributes
+    pxr::TfToken kind;
+    if (!pxr::UsdModelAPI(translatedPrim).GetKind(&kind) && kind.IsEmpty()) {
+        // Set kind to group on export if max group
+        if (node->IsGroupHead()) {
+            pxr::UsdModelAPI(translatedPrim).SetKind(pxr::KindTokens->group);
+        }
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Builders/USDSceneBuilder.h b/src/MaxUsd/Builders/USDSceneBuilder.h
new file mode 100644
index 0000000..42cfdb7
--- /dev/null
+++ b/src/MaxUsd/Builders/USDSceneBuilder.h
@@ -0,0 +1,328 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "USDSceneBuilderOptions.h"
+
+#include <MaxUsd/Chaser/ExportChaserRegistry.h>
+#include <MaxUsd/DLLEntry.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/AnimExportTask.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <GetCOREInterface.h>
+#include <lslights.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief USD Scene Builder.
+ * \remarks This current implementation is a work-in-progress that will evolve as additional conversion operations
+ * between USD and 3ds Max are supported. Performance of the import process is a design concern, and
+ * while CRTP-type solutions are not (currently) implemented, future work should attempt to
+ * improve/maintain run-time performance while maintaining a high level of flexibility.
+ * \remarks This current implementation moves some of the import logic away from the USDSceneController where it was
+ * previously located. In the process, the import still owns some of the UI/UX import process such
+ * as the handling of 3ds Max's progress bar. Future work should abstract away this behavior, and
+ * expose more control to the caller (e.g. through callbacks, or notifications about the current
+ * state of the import process, etc.).
+ */
+class USDSceneBuilder
+{
+public:
+    /**
+     * \brief Constructor.
+     */
+    USDSceneBuilder();
+
+    /**
+     * \brief Destructor.
+     */
+    virtual ~USDSceneBuilder() = default;
+
+    /**
+     * \brief Build a USD Stage from the given build options.
+     * \param buildOptions Build configuration options to use during the translation process.
+     * \param cancelled Flag that will be set to true if cancelled by user.
+     * \param filename The filename of the USD file that is being built.
+     * \param editedLayers Identifiers of layers edited during the export. All these layers will be saved to disk at the end of the export process.
+     * \param isUSDZ flag that will be set to true if exported file will end up packaged in a usdz archive.
+     * \return The USD Stage built from the given options.
+     */
+    pxr::UsdStageRefPtr Build(
+        const USDSceneBuilderOptions&               buildOptions,
+        bool&                                       cancelled,
+        const fs::path&                             filename,
+        std::map<std::string, pxr::SdfLayerRefPtr>& editedLayers,
+        bool                                        isUSDZ);
+
+protected:
+    /**
+     * \brief Context for each translation operation to be performed as part of the USD Stage building process.
+     */
+    struct TranslationContext
+    {
+        /// Reference to the 3ds Max Node to translate:
+        INode* node { nullptr };
+
+        /// Reference to the USD Stage into which to perform the translation:
+        const pxr::UsdStageRefPtr& stage;
+        /// Path where to create the new prim(s):
+        const pxr::SdfPath parentPrimPath;
+
+        /// Name to give the new prim
+        const std::string primName;
+
+        /// USD time configuration for the translation operation:
+        const MaxUsd::TimeConfig timeConfig;
+
+        /// In preview mode, we do not actually translate the nodes, but only
+        /// figure out what Prims will be exported, and where in the hierarchy.
+        bool preview = false;
+    };
+
+    /**
+     * \brief Holder for translation operations to execute, based on the success of a given predicate.
+     */
+    template <typename ReturnType, typename... InputTypes> struct TranslationOperation
+    {
+        /**
+         * \brief Definition for the type of the predicate identifying if the translation operation should be
+         * applied to the provided 3ds Max Object.
+         */
+        using selector_t = std::function<bool(Object*)>;
+        /**
+         * \brief Definition for the type of the translation operation to execute if the predicate elected to
+         * operate on the provided 3ds Max Object.
+         */
+        using operation_t = std::function<ReturnType(InputTypes...)>;
+
+        /**
+         * \brief Default constructor.
+         */
+        TranslationOperation() = default;
+
+        /**
+         * \brief Constructor.
+         * \param selectorPredicate Predicate used to elect if the given translation operation should be applied to
+         * the provided 3ds Max object.
+         * \param operation Translation operation to apply to the provided 3ds Max object, if the predicate elected it
+         * for processing.
+         */
+        TranslationOperation(
+            const selector_t&  selectorPredicate,
+            const operation_t& operation) noexcept
+            : AppliesToObject { selectorPredicate }
+            , Execute { operation }
+        {
+            // Nothing to do.
+        }
+
+        /**
+         * \brief Predicate to elect if the provided USD Prim should be selected for processing.
+         */
+        selector_t AppliesToObject { [](Object*) { return false; } };
+        /**
+         * \brief Translation operation to apply to the provided USD Prim, if the predicate elected it for
+         * processing.
+         */
+        operation_t Execute { [](InputTypes...) { return nullptr; } };
+    };
+
+    /**
+     * \brief Type definition for translation operations to be performed to convert 3ds Max content into USD content.
+     */
+    using translationOperation_t
+        = TranslationOperation<MaxUsd::PrimDefVectorPtr, const TranslationContext&>;
+
+    /**
+     * \brief Type definition for additional translation operations performed after 3ds Max object converted into USD Prims
+     */
+    using translationPrimConfigurator_t
+        = TranslationOperation<void, const TranslationContext&, pxr::UsdPrim&>;
+
+protected:
+    /**
+     * \brief Start the scene export process to usd
+     * \param writeJobContext The write job context (options, stage, target file, etc.)
+     * \param primToNode A map of prims to their source nodes to be filled. Used to keep track of what prim was exported
+     * from what node.
+     * \param primsToMaterialBind The method will fill this set with the prims on which we should do material assignment
+     * later in the export process.
+     * \param progress Reference to the progress bar, to report progress with, as this can be a lengthy operation.
+     * \return true if operation completed, false if operation failed or cancelled
+     */
+    bool BuildStageFromMaxNodes(
+        pxr::MaxUsdWriteJobContext&                                     writeJobContext,
+        pxr::MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap& primToNode,
+        pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>&               primsToMaterialBind,
+        MaxProgressBar&                                                 progress);
+
+    /**
+     * \brief Processes a 3ds Max node for export to the USD Stage, using the provided translation context.
+     * Will setup the prims in the stage and queue time dependent work (writing properties and
+     * transforms) in the passed AnimnExportTask (indeed, this work is delayed to make sure we only
+     * evaluate each 3dsMax object once at a certain time).
+     * \param context The context of the node translation operation.
+     * \param buidOptions Build configuration options to use during the translation process.
+     * \param primCreators The prim creators to be used to convert the node.
+     * \param primConfigurators The object configurators to be used to convert the node.
+     * \param stage USD Stage into which to add the new prim(s).
+     * \param doAssignMaterial True if the prim create for the 3dsMax node should be considered for material assignement,
+     * this is from the implementation of the prim writer. IMPORTANT: In the case of instanced
+     * objects, only the first instance may return doAssignMaterial = true, as subsequent instances
+     * do not need to involve the prim writer at all. It is the responsibility of the caller to
+     * handle this case.
+     * \param animExportTask Time samples export task - where time-dependent work will be queued up so it can later
+     * be batched with other work which need to be run at the same 3dsMax time. Essentially writing
+     * object properties & transforms.
+     * \return A vector of the created USD prims for the 3dsMax node (or that would be created if in preview mode).
+     * The first prim in the vector is the root prim for the node.
+     */
+    MaxUsd::PrimDefVectorPtr ProcessNode(
+        const TranslationContext&                                          context,
+        const pxr::MaxUsdWriteJobContext&                                  jobContext,
+        const std::vector<USDSceneBuilder::translationPrimConfigurator_t>& primConfigurators,
+        const pxr::UsdStageRefPtr&                                         stage,
+        bool&                                                              doAssignMaterial,
+        MaxUsd::AnimExportTask&                                            animExportTask);
+
+    /**
+     * \brief Checks if anything in the hierarchy starting at a given node should be exported.
+     * \param node The top-most node of the hierarchy. The function is called recursively on the
+     * node's children, and a cache is maintained to avoid unnecessary traversals.
+     * \param buildOptions The USD scene builder options.
+     * \return True if the hierarchy contains objects which should be exported, false otherwise.
+     */
+    bool HasExportableDescendants(INode* node, const USDSceneBuilderOptions& buildOptions);
+
+    /**
+     * \brief Writes all the prims required to translate a Max node to USD. If the node's object has an offset,
+     * we will need an extra xform prim, so that the object's offset is not propagated to children
+     * nodes.  If the object can be exported as an instanceable prim, the function will create the
+     * appropriate class prim and xform prim referencing the class prim.
+     * \param createObjectPrim The translation function to use for the node's object itself.  The function take
+     * 2 parameters, the translation context for the node and a boolean that indicate if the
+     * translated prim should include the object transform.
+     * \param context The translation context for the node. If in preview, we are just gathering all the prims that
+     * will be written to, but not actually writing to them - we are previewing what we will write
+     * to - knowing this we can later pre-create in all prims (without their properties) in a single
+     * SdfChange block, to avoid costly notifications being sent out.
+     * \param objectPrimSuffix The suffix to use in the object's prim name if it is created. The full name of that
+     * \param xformRequirement Specifies if an extra Xform needs to be created to encode the node's transform, or if
+     * it can be applied onto the object's prim directly. This is a requirement from the prim
+     * writer, additional requirements may come into play forcing the creation of the Xform, even if
+     * the prim writer itself doesn't need it (for example when using instancing).
+     * \param instancingRequirement Whether or not default instancing should be used (i.e. instanced 3dsMax nodes would
+     * generate instanced prims).
+     * This will be ignored for node that are exported as instances, in which case the prim will
+     * always be created if the offset transform is not identity.
+     * \parm rootPrim The root prim we are exporting to. This may be useful in case we need to create prims outside
+     * the hierarchy, but that should still be under the targeted root prim for export. For example,
+     * prototype prims.
+     * \return A vector of definitions of prims created from the node (or that would be created if in preview mode).
+     * The first prim in the vector is the root prim for the node.
+     */
+    MaxUsd::PrimDefVectorPtr WriteNodePrims(
+        std::function<MaxUsd::PrimDef(const TranslationContext&, bool applyOffsetTransform)>
+                                             createObjectPrim,
+        const TranslationContext&            context,
+        const std::string&                   objectPrimSuffix,
+        const MaxUsd::XformSplitRequirement& xformRequirement,
+        const MaxUsd::InstancingRequirement& instancingRequirement,
+        const pxr::SdfPath&                  rootPrim);
+
+    /**
+     * \brief Translate USD round-trip attributes stored as Max custom attributes
+     * \param context The context of the translation operation.
+     * \param translatedPrim the usd prim being translated to
+     */
+    virtual void ConfigureUsdAttributes(
+        const TranslationContext& translationContext,
+        pxr::UsdPrim&             translatedPrim);
+
+    /**
+     * \brief Configure the USD Kind for a node's exported prim - only do so if none already authored.
+     * \param node The node we are exporting the prim from
+     * \param translatedPrim The usd prim being translated to
+     */
+    void ConfigureKind(INode* node, pxr::UsdPrim& translatedPrim);
+
+    /**
+     * \brief Return the number of nodes to be exported for the given buildOptions
+     * \param buildOptions Build configuration options to use during the translation process.
+     * \return number of nodes that will be exported
+     */
+    int GetNumberOfNodeToExport(const USDSceneBuilderOptions& buildOptions);
+
+    /**
+     * \brief Return whether or not the parent prim should be used to export an instance.
+     * We want to reuse the parent prim in certain situations to avoid creating extra layers of
+     * prims when round-tripping usd data inside 3ds Max multiple times.
+     * \param context The context of the translation operation.
+     * \return True if the parent prim should be reuse to export the instance node.
+     */
+    bool ReuseParentPrimForInstancing(const TranslationContext& context);
+
+private:
+    /// Class ID of the Mesh type to select for translation operations:
+    const Class_ID MESH_TYPE_ID { TRIOBJ_CLASS_ID, 0 };
+    /// Class ID of the Camera type to select for translation operations:
+    const Class_ID CAMERA_TYPE_ID { SIMPLE_CAM_CLASS_ID, 0 };
+    /// Class ID of the Light type to select for translation operations:
+    const Class_ID PHOTOMETRIC_LIGHT_TYPE_ID { LIGHTSCAPE_LIGHT_CLASS };
+    /// Class ID of the Dummy type to select for translation operations:
+    const Class_ID DUMMY_TYPE_ID { DUMMY_CLASS_ID, 0 };
+    /// Class ID of the PointHelper type to select for translation operations:
+    const Class_ID POINTHELPER_TYPE_ID { POINTHELP_CLASS_ID, 0 };
+
+    /// Reference to the Core Interface to use to interface with 3ds Max:
+    Interface17* coreInterface { GetCOREInterface17() };
+
+    // Map of instanced Node to usd class Prim
+    std::map<INode*, pxr::SdfPath> maxNodeToClassPrimMap;
+    MaxUsd::UniqueNameGenerator    classPrimBaseNameGenerator;
+
+    // Explicit set of nodes to be exported. Used when exporting the selection or from a node list.
+    // Remains empty if exporting the whole scene.
+    std::unordered_set<INode*> nodesToExportSet;
+
+    // Cached maintained by HasExportableDescendants() to avoid extra scene graph
+    // traversals. For each node in the map, the boolean value specifies whether or
+    // not itself, or any of its descendants should be exported.
+    std::map<INode*, bool> hasExportableDescendantsMap;
+
+    // Instance to prototype prim map. We collect this during export so that we set up instancing
+    // all at once in a single SdfChangeBlock at the end.
+    pxr::TfHashMap<pxr::SdfPath, pxr::SdfPath, pxr::SdfPath::Hash> instanceToPrototype;
+    // For instanced 3dsmax objects, we only run prim writers once, when exporting the first
+    // instance. At this time, the prim writer tells us if we need to perform material assignment to
+    // the prim it creates. We only get this info when exporting the first instance, but the answer
+    // is the same for all instances. Therefor, we need to keep track of it, so we know if we need
+    // to assign a material, when we hit further instances. This set hold the path of
+    // prototype/class prims which require material assignment.
+    pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash> prototypeMaterialReq;
+
+    /**
+     * \brief Resets state data used during node export passes. We currently split the export in multiple passes,
+     * for performance. The first only creates the prims. The second sets up the prim properties.
+     * Some data held by the USDSceneBuilder needs to be reset between the passes.
+     */
+    void PrepareExportPass();
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Builders/USDSceneBuilderOptions.cpp b/src/MaxUsd/Builders/USDSceneBuilderOptions.cpp
new file mode 100644
index 0000000..7a9676b
--- /dev/null
+++ b/src/MaxUsd/Builders/USDSceneBuilderOptions.cpp
@@ -0,0 +1,674 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDSceneBuilderOptions.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/VtDictionaryUtils.h>
+
+#include <pxr/UsdImaging/UsdImaging/tokens.h>
+#include <pxr/base/tf/diagnostic.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdUsdSceneBuilderOptionsTokens, PXR_MAXUSD_USD_SCENE_BUILDER_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+const double USDSceneBuilderOptions::MIN_SAMPLES_PER_FRAME = 0.01;
+const double USDSceneBuilderOptions::MAX_SAMPLES_PER_FRAME = 100.0;
+
+USDSceneBuilderOptions::USDSceneBuilderOptions() noexcept { SetDefaults(); }
+
+USDSceneBuilderOptions::USDSceneBuilderOptions(const pxr::VtDictionary& dict) noexcept
+    : animationRollupData()
+{
+    options = dict;
+    DictUtils::CoerceDictToGuideType(options, GetDefaultDictionary());
+
+    // Since the Coercion is not recursive, it's needed to coerce the nested dictionaries as well,
+    // making sure that they are valid.
+    if (VtDictionaryIsHolding<VtDictionary>(
+            options, MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions)) {
+        VtDictionary meshConversionOptions = VtDictionaryGet<VtDictionary>(
+            options, MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions);
+        DictUtils::CoerceDictToGuideType(
+            meshConversionOptions, MaxMeshConversionOptions().GetOptions());
+
+        if (VtDictionaryIsHolding<VtDictionary>(
+                meshConversionOptions, MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig)) {
+            VtDictionary channelToPrimvarConfig = VtDictionaryGet<VtDictionary>(
+                meshConversionOptions, MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig);
+
+            for (auto& entry : channelToPrimvarConfig) {
+                VtDictionary channel = entry.second.Get<VtDictionary>();
+                const auto&  defaultChannel = VtDictionaryGet<VtDictionary>(
+                    MaxMeshConversionOptions::GetDefaultChannelPrimvarMappings(), entry.first);
+                DictUtils::CoerceDictToGuideType(channel, defaultChannel);
+                VtDictionaryOver(channel, defaultChannel);
+                channelToPrimvarConfig.SetValueAtPath(entry.first, VtValue(channel));
+            }
+
+            VtDictionaryOver(
+                channelToPrimvarConfig,
+                MaxMeshConversionOptions::GetDefaultChannelPrimvarMappings());
+            meshConversionOptions.SetValueAtPath(
+                MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig,
+                VtValue(channelToPrimvarConfig));
+        }
+
+        options.SetValueAtPath(
+            MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions,
+            VtValue(meshConversionOptions));
+    }
+    options = VtDictionaryOver(options, GetDefaultDictionary());
+}
+
+void USDSceneBuilderOptions::SetOptions(const USDSceneBuilderOptions& options)
+{
+
+    convertMaterialsTo = options.convertMaterialsTo;
+    animationRollupData = options.animationRollupData;
+
+    this->options = options.options;
+}
+
+void USDSceneBuilderOptions::SetDefaults() { options = GetDefaultDictionary(); }
+
+/* static */
+const pxr::VtDictionary& USDSceneBuilderOptions::GetDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->version] = 1;
+        // Base defaults.
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->contentSource]
+            = static_cast<int>(ContentSource::RootNode);
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateMeshes] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateShapes] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateLights] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateCameras] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateMaterials] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->usdStagesAsReferences] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->allowNestedGprims] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateHidden] = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateSkin] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->translateMorpher] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->useUSDVisibility] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->useProgressBar] = true;
+
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->timeMode]
+            = static_cast<int>(TimeMode::CurrentFrame);
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->startFrame] = 0.0;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->endFrame] = 0.0;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->samplesPerFrame] = 1.0;
+
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->shadingMode]
+            = MaxUsdShadingModeTokens->useRegistry;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->allMaterialConversions]
+            = std::set<pxr::TfToken> { pxr::UsdImagingTokens->UsdPreviewSurface };
+
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->contextNames] = std::set<std::string>();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->jobContextOptions] = pxr::VtDictionary();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->chaserNames] = std::vector<std::string>();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->chaserArgs]
+            = std::map<std::string, ChaserArgs>();
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->openInUsdView] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->fileFormat]
+            = static_cast<int>(FileFormat::Binary);
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->rootPrimPath] = SdfPath("/root");
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->upAxis] = static_cast<int>(UpAxis::Z);
+
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions]
+            = MaxMeshConversionOptions().GetOptions();
+        defaultDict[MaxUsdSceneBuilderOptionsTokens->logLevel] = static_cast<int>(Log::Level::Off);
+#ifdef IS_MAX2024_OR_GREATER
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->mtlSwitcherExportStyle]
+            = static_cast<int>(MtlSwitcherExportStyle::AsVariantSets);
+#endif
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->materialLayerPath]
+            = std::string("<filename>_mtl.usda");
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->separateMaterialLayer] = false;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->materialPrimPath] = SdfPath("mtl");
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->useLastResortUSDPreviewSurfaceWriter]
+            = true;
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->animationsPrimName]
+            = pxr::TfToken("Animations");
+        defaultDict[MaxUsdUsdSceneBuilderOptionsTokens->bonesPrimName] = pxr::TfToken("Bones");
+    });
+    // Purposefully left out of the call_once, in order to always fetch the latest value for
+    // "APP_TEMP_DIR".
+    defaultDict[MaxUsdSceneBuilderOptionsTokens->logPath]
+        = fs::path(std::wstring(MaxSDKSupport::GetString(GetCOREInterface()->GetDir(APP_TEMP_DIR)))
+                       .append(L"\\MaxUsdExport.log"));
+
+    return defaultDict;
+}
+
+USDSceneBuilderOptions USDSceneBuilderOptions::OptionsWithAppliedContexts() const
+{
+    auto thisCopy = *this;
+
+    VtDictionary allContextArgs;
+    if (MergeJobContexts(true, this->GetContextNames(), allContextArgs)) {
+        if (!allContextArgs.empty()) {
+            if (allContextArgs.count(MaxUsdSceneBuilderOptionsTokens->chaserNames) > 0) {
+                if (thisCopy.GetChaserNames().empty()) {
+                    thisCopy.SetChaserNames(DictUtils::ExtractVector<std::string>(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserNames));
+                } else // merge args
+                {
+                    auto values = DictUtils::ExtractVector<std::string>(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserNames);
+                    if (!values.empty()) {
+                        auto chaserNamesCopy = thisCopy.GetChaserNames();
+                        for (auto element : values) {
+                            if (std::find(chaserNamesCopy.begin(), chaserNamesCopy.end(), element)
+                                == chaserNamesCopy.end()) {
+                                chaserNamesCopy.push_back(element);
+                            }
+                        }
+                        thisCopy.SetChaserNames(chaserNamesCopy);
+                    }
+                }
+            }
+            if (allContextArgs.count(MaxUsdSceneBuilderOptionsTokens->chaserArgs) > 0) {
+                if (thisCopy.GetAllChaserArgs().empty()) {
+                    thisCopy.SetAllChaserArgs(ExtractChaserArgs(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserArgs));
+                } else // merge args
+                {
+                    auto values = ExtractChaserArgs(
+                        allContextArgs, MaxUsdSceneBuilderOptionsTokens->chaserArgs);
+                    auto allChaserArgsCopy = thisCopy.GetAllChaserArgs();
+                    for (auto element : values) {
+                        if (allChaserArgsCopy.find(element.first) == allChaserArgsCopy.end()) {
+                            allChaserArgsCopy[element.first] = element.second;
+                        } else {
+                            auto& currentChaserArgs = allChaserArgsCopy[element.first];
+                            for (auto arg : element.second) {
+                                if (currentChaserArgs.find(arg.first) == currentChaserArgs.end()) {
+                                    currentChaserArgs[arg.first] = arg.second;
+                                } else {
+                                    if (currentChaserArgs[arg.first] != arg.second) {
+                                        TF_WARN(TfStringPrintf(
+                                            "Multiple argument value for '%s' associated to chaser "
+                                            "'%s'. Keeping "
+                                            "the argument value set to '%s' from Context.",
+                                            arg.first.c_str(),
+                                            element.first.c_str(),
+                                            arg.second));
+                                        // take the argument from the context, and forget the user's
+                                        currentChaserArgs[arg.first] = arg.second;
+                                    }
+                                }
+                            }
+                        }
+                        thisCopy.SetAllChaserArgs(allChaserArgsCopy);
+                    }
+                }
+            }
+            if (allContextArgs.count(MaxUsdSceneBuilderOptionsTokens->convertMaterialsTo) > 0) {
+                // merge args
+                auto values = DictUtils::ExtractTokenSet(
+                    allContextArgs, MaxUsdSceneBuilderOptionsTokens->convertMaterialsTo);
+
+                auto matConversions = thisCopy.GetAllMaterialConversions();
+                matConversions.insert(values.begin(), values.end());
+                thisCopy.SetAllMaterialConversions(matConversions);
+            }
+        }
+    } else {
+        MaxUsd::Log::Error("Errors while processing export contexts. Using base export options.");
+    }
+
+    return thisCopy;
+}
+
+void USDSceneBuilderOptions::SetContentSource(const ContentSource& contentSource)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->contentSource] = static_cast<int>(contentSource);
+}
+
+USDSceneBuilderOptions::ContentSource USDSceneBuilderOptions::GetContentSource() const
+{
+    return static_cast<ContentSource>(
+        VtDictionaryGet<int>(options, MaxUsdUsdSceneBuilderOptionsTokens->contentSource));
+}
+
+void USDSceneBuilderOptions::SetTranslateMeshes(bool translateMeshes)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateMeshes] = translateMeshes;
+}
+
+bool USDSceneBuilderOptions::GetTranslateMeshes() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateMeshes);
+}
+
+void USDSceneBuilderOptions::SetTranslateShapes(bool translateShapes)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateShapes] = translateShapes;
+}
+
+bool USDSceneBuilderOptions::GetTranslateShapes() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateShapes);
+}
+
+void USDSceneBuilderOptions::SetTranslateLights(bool translateLights)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateLights] = translateLights;
+}
+
+bool USDSceneBuilderOptions::GetTranslateLights() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateLights);
+}
+
+void USDSceneBuilderOptions::SetTranslateCameras(bool translateCameras)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateCameras] = translateCameras;
+}
+
+bool USDSceneBuilderOptions::GetTranslateCameras() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateCameras);
+}
+
+void USDSceneBuilderOptions::SetTranslateMaterials(bool translateMaterials)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateMaterials] = translateMaterials;
+
+    // set default shading mode if none was set and materials are to be exported
+    if (translateMaterials && GetShadingMode() == MaxUsdShadingModeTokens->none) {
+        SetShadingMode(MaxUsdShadingModeTokens->useRegistry);
+    }
+}
+
+bool USDSceneBuilderOptions::GetTranslateMaterials() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateMaterials);
+}
+
+void USDSceneBuilderOptions::SetTranslateSkin(bool translateSkin)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateSkin] = translateSkin;
+}
+
+bool USDSceneBuilderOptions::GetTranslateSkin() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateSkin);
+}
+
+void USDSceneBuilderOptions::SetTranslateMorpher(bool translateMorpher)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateMorpher] = translateMorpher;
+}
+
+bool USDSceneBuilderOptions::GetTranslateMorpher() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateMorpher);
+}
+
+void USDSceneBuilderOptions::SetShadingMode(const pxr::TfToken& shadingMode)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->shadingMode] = shadingMode;
+
+    // overrule the 'translateMaterials' boolean if no shading mode is set
+    if (shadingMode == MaxUsdShadingModeTokens->none && GetTranslateMaterials()) {
+        SetTranslateMaterials(false);
+    }
+}
+
+pxr::TfToken USDSceneBuilderOptions::GetShadingMode() const
+{
+    return VtDictionaryGet<TfToken>(options, MaxUsdUsdSceneBuilderOptionsTokens->shadingMode);
+}
+
+void USDSceneBuilderOptions::SetAllMaterialConversions(
+    const std::set<pxr::TfToken>& materialConversions)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->allMaterialConversions] = materialConversions;
+    if (materialConversions.empty()) {
+        SetShadingMode(pxr::MaxUsdShadingModeTokens->none);
+    } else {
+        SetShadingMode(pxr::MaxUsdShadingModeTokens->useRegistry);
+    }
+}
+
+const std::set<pxr::TfToken>& USDSceneBuilderOptions::GetAllMaterialConversions() const
+{
+    return VtDictionaryGet<std::set<pxr::TfToken>>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->allMaterialConversions);
+}
+
+void USDSceneBuilderOptions::SetUsdStagesAsReferences(bool usdStagesAsReferences)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->usdStagesAsReferences] = usdStagesAsReferences;
+}
+
+bool USDSceneBuilderOptions::GetUsdStagesAsReferences() const
+{
+    return VtDictionaryGet<bool>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->usdStagesAsReferences);
+}
+
+void USDSceneBuilderOptions::SetTranslateHidden(bool translateHidden)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->translateHidden] = translateHidden;
+}
+
+bool USDSceneBuilderOptions::GetTranslateHidden() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->translateHidden);
+}
+
+void USDSceneBuilderOptions::SetUseUSDVisibility(bool useUSDVibility)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->useUSDVisibility] = useUSDVibility;
+}
+
+bool USDSceneBuilderOptions::GetUseUSDVisibility() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->useUSDVisibility);
+}
+
+void USDSceneBuilderOptions::SetFileFormat(const FileFormat& saveFormat)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->fileFormat] = static_cast<int>(saveFormat);
+}
+
+USDSceneBuilderOptions::FileFormat USDSceneBuilderOptions::GetFileFormat() const
+{
+    return static_cast<FileFormat>(
+        VtDictionaryGet<int>(options, MaxUsdUsdSceneBuilderOptionsTokens->fileFormat));
+}
+
+namespace {
+const std::string normalsModeKey
+    = MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions.GetString() + ":"
+    + MaxUsdMaxMeshConversionOptions->normalMode.GetString();
+const std::string meshFormatKey
+    = MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions.GetString() + ":"
+    + MaxUsdMaxMeshConversionOptions->meshFormat.GetString();
+} // namespace
+
+void USDSceneBuilderOptions::SetNormalsMode(
+    const MaxMeshConversionOptions::NormalsMode& normalsMode)
+{
+    options.SetValueAtPath(normalsModeKey, VtValue(static_cast<int>(normalsMode)));
+}
+
+MaxMeshConversionOptions::NormalsMode USDSceneBuilderOptions::GetNormalsMode() const
+{
+    const auto& val = options.GetValueAtPath(normalsModeKey);
+    return static_cast<MaxMeshConversionOptions::NormalsMode>(val->Get<int>());
+}
+
+void USDSceneBuilderOptions::SetMeshFormat(const MaxMeshConversionOptions::MeshFormat& meshFormat)
+{
+    options.SetValueAtPath(meshFormatKey, VtValue(static_cast<int>(meshFormat)));
+}
+
+MaxMeshConversionOptions::MeshFormat USDSceneBuilderOptions::GetMeshFormat() const
+{
+    const auto& val = options.GetValueAtPath(meshFormatKey);
+    return static_cast<MaxMeshConversionOptions::MeshFormat>(val->Get<int>());
+}
+
+void USDSceneBuilderOptions::SetUpAxis(const UpAxis& upAxis)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->upAxis] = static_cast<int>(upAxis);
+}
+
+USDSceneBuilderOptions::UpAxis USDSceneBuilderOptions::GetUpAxis() const
+{
+    return static_cast<UpAxis>(
+        VtDictionaryGet<int>(options, MaxUsdUsdSceneBuilderOptionsTokens->upAxis));
+}
+
+void USDSceneBuilderOptions::SetMeshConversionOptions(
+    const MaxMeshConversionOptions& meshConversionOptions)
+{
+    options.SetValueAtPath(
+        MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions,
+        VtValue(meshConversionOptions.GetOptions()));
+}
+
+const MaxMeshConversionOptions USDSceneBuilderOptions::GetMeshConversionOptions() const
+{
+    return MaxMeshConversionOptions(VtDictionaryGet<VtDictionary>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->meshConversionOptions));
+}
+
+void USDSceneBuilderOptions::SetNodesToExport(const Tab<INode*>& nodes) { nodesToExport = nodes; }
+
+const Tab<INode*>& USDSceneBuilderOptions::GetNodesToExport() const { return nodesToExport; }
+
+void USDSceneBuilderOptions::SetTimeMode(const TimeMode& timeMode)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->timeMode] = static_cast<int>(timeMode);
+}
+
+USDSceneBuilderOptions::TimeMode USDSceneBuilderOptions::GetTimeMode() const
+{
+    return static_cast<TimeMode>(
+        VtDictionaryGet<int>(options, MaxUsdUsdSceneBuilderOptionsTokens->timeMode));
+}
+
+void USDSceneBuilderOptions::SetStartFrame(double startFrame)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->startFrame] = startFrame;
+}
+
+double USDSceneBuilderOptions::GetStartFrame() const
+{
+    return VtDictionaryGet<double>(options, MaxUsdUsdSceneBuilderOptionsTokens->startFrame);
+}
+
+void USDSceneBuilderOptions::SetEndFrame(double endFrame)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->endFrame] = endFrame;
+}
+
+double USDSceneBuilderOptions::GetEndFrame() const
+{
+    return VtDictionaryGet<double>(options, MaxUsdUsdSceneBuilderOptionsTokens->endFrame);
+}
+
+void USDSceneBuilderOptions::SetSamplesPerFrame(double samplesPerFrame)
+{
+    TimeConfig::ValidateSamplePerFrame(samplesPerFrame);
+    options[MaxUsdUsdSceneBuilderOptionsTokens->samplesPerFrame] = samplesPerFrame;
+}
+
+double USDSceneBuilderOptions::GetSamplesPerFrame() const
+{
+    return VtDictionaryGet<double>(options, MaxUsdUsdSceneBuilderOptionsTokens->samplesPerFrame);
+}
+
+TimeConfig USDSceneBuilderOptions::GetResolvedTimeConfig() const
+{
+    TimeConfig timeConfig { GetStartFrame(), GetEndFrame(), GetSamplesPerFrame() };
+
+    switch (GetTimeMode()) {
+    case TimeMode::CurrentFrame:
+        return TimeConfig { GetCOREInterface()->GetTime(),
+                            GetCOREInterface()->GetTime(),
+                            timeConfig.GetSamplesPerFrame() };
+    case TimeMode::ExplicitFrame:
+        return TimeConfig { timeConfig.GetStartTime(),
+                            timeConfig.GetStartTime(),
+                            timeConfig.GetSamplesPerFrame() };
+    case TimeMode::AnimationRange:
+        return TimeConfig { GetCOREInterface()->GetAnimRange().Start(),
+                            GetCOREInterface()->GetAnimRange().End(),
+                            timeConfig.GetSamplesPerFrame() };
+    case TimeMode::FrameRange:
+        return TimeConfig { timeConfig.GetStartTime(),
+                            timeConfig.GetEndTime(),
+                            timeConfig.GetSamplesPerFrame() };
+    default: DbgAssert(0 && _T("Unknown TimeMode enum.")); return TimeConfig {};
+    }
+}
+
+void USDSceneBuilderOptions::SetRootPrimPath(const SdfPath& rootPrimPath)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->rootPrimPath] = rootPrimPath;
+}
+
+const SdfPath& USDSceneBuilderOptions::GetRootPrimPath() const
+{
+    return VtDictionaryGet<SdfPath>(options, MaxUsdUsdSceneBuilderOptionsTokens->rootPrimPath);
+}
+
+const pxr::TfToken& USDSceneBuilderOptions::GetBonesPrimName() const
+{
+    return VtDictionaryGet<TfToken>(options, MaxUsdUsdSceneBuilderOptionsTokens->bonesPrimName);
+}
+
+void USDSceneBuilderOptions::SetBonesPrimName(const pxr::TfToken& bonesPrimName)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->bonesPrimName] = bonesPrimName;
+}
+
+const pxr::TfToken& USDSceneBuilderOptions::GetAnimationsPrimName() const
+{
+    return VtDictionaryGet<TfToken>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->animationsPrimName);
+}
+
+void USDSceneBuilderOptions::SetAnimationsPrimName(const pxr::TfToken& animationsPrimName)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->animationsPrimName] = animationsPrimName;
+}
+
+void USDSceneBuilderOptions::SetOpenInUsdview(bool openInUsdview)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->openInUsdView] = openInUsdview;
+}
+
+bool USDSceneBuilderOptions::GetOpenInUsdview() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->openInUsdView);
+}
+
+void USDSceneBuilderOptions::SetAllowNestedGprims(bool allowNestedGprims)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->allowNestedGprims] = allowNestedGprims;
+}
+
+bool USDSceneBuilderOptions::GetAllowNestedGprims() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->allowNestedGprims);
+}
+
+#ifdef IS_MAX2024_OR_GREATER
+void USDSceneBuilderOptions::SetMtlSwitcherExportStyle(const MtlSwitcherExportStyle& exportStyle)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->mtlSwitcherExportStyle]
+        = static_cast<int>(exportStyle);
+}
+
+const USDSceneBuilderOptions::MtlSwitcherExportStyle
+USDSceneBuilderOptions::GetMtlSwitcherExportStyle() const
+{
+    return static_cast<MtlSwitcherExportStyle>(
+        VtDictionaryGet<int>(options, MaxUsdUsdSceneBuilderOptionsTokens->mtlSwitcherExportStyle));
+}
+#endif
+
+bool USDSceneBuilderOptions::GetUseProgressBar() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdUsdSceneBuilderOptionsTokens->useProgressBar);
+}
+
+void USDSceneBuilderOptions::SetUseProgressBar(bool useProgressBar)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->useProgressBar] = useProgressBar;
+}
+
+void USDSceneBuilderOptions::SetMaterialLayerPath(const std::string& matPath)
+{
+    auto path = USDCore::sanitizedFilename(matPath, ".usda").string();
+    options[MaxUsdUsdSceneBuilderOptionsTokens->materialLayerPath] = path;
+}
+
+const std::string& USDSceneBuilderOptions::GetMaterialLayerPath() const
+{
+    return VtDictionaryGet<std::string>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->materialLayerPath);
+}
+
+void USDSceneBuilderOptions::SetMaterialPrimPath(const pxr::SdfPath& matRootpath)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->materialPrimPath] = matRootpath;
+}
+
+const pxr::SdfPath& USDSceneBuilderOptions::GetMaterialPrimPath() const
+{
+    return VtDictionaryGet<SdfPath>(options, MaxUsdUsdSceneBuilderOptionsTokens->materialPrimPath);
+}
+
+void USDSceneBuilderOptions::SetUseSeparateMaterialLayer(bool useMaterialLayer)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->separateMaterialLayer] = useMaterialLayer;
+}
+
+bool USDSceneBuilderOptions::GetUseSeparateMaterialLayer() const
+{
+    return VtDictionaryGet<bool>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->separateMaterialLayer);
+}
+
+void USDSceneBuilderOptions::SetUseLastResortUSDPreviewSurfaceWriter(
+    bool useLastResortUSDFallbackMaterial)
+{
+    options[MaxUsdUsdSceneBuilderOptionsTokens->useLastResortUSDPreviewSurfaceWriter]
+        = useLastResortUSDFallbackMaterial;
+}
+
+bool USDSceneBuilderOptions::GetUseLastResortUSDPreviewSurfaceWriter() const
+{
+    return VtDictionaryGet<bool>(
+        options, MaxUsdUsdSceneBuilderOptionsTokens->useLastResortUSDPreviewSurfaceWriter);
+}
+
+void USDSceneBuilderOptions::FetchAnimationRollupData(
+    AnimationRollupData& animationRollupData) const
+{
+    animationRollupData.frameNumberDefault = this->animationRollupData.frameNumberDefault;
+    animationRollupData.frameNumber = this->animationRollupData.frameNumber;
+    animationRollupData.frameRangeDefault = this->animationRollupData.frameRangeDefault;
+    animationRollupData.frameRangeStart = this->animationRollupData.frameRangeStart;
+    animationRollupData.frameRangeEnd = this->animationRollupData.frameRangeEnd;
+}
+
+void USDSceneBuilderOptions::SaveAnimationRollupData(const AnimationRollupData& animationRollupData)
+{
+    this->animationRollupData.frameNumberDefault = animationRollupData.frameNumberDefault;
+    this->animationRollupData.frameNumber = animationRollupData.frameNumber;
+    this->animationRollupData.frameRangeDefault = animationRollupData.frameRangeDefault;
+    this->animationRollupData.frameRangeStart = animationRollupData.frameRangeStart;
+    this->animationRollupData.frameRangeEnd = animationRollupData.frameRangeEnd;
+}
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Builders/USDSceneBuilderOptions.h b/src/MaxUsd/Builders/USDSceneBuilderOptions.h
new file mode 100644
index 0000000..eb6f7d4
--- /dev/null
+++ b/src/MaxUsd/Builders/USDSceneBuilderOptions.h
@@ -0,0 +1,666 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "SceneBuilderOptions.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/usd/usd/usdFileFormat.h>
+#include <pxr/usd/usd/usdcFileFormat.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define PXR_MAXUSD_USD_SCENE_BUILDER_TOKENS \
+	/* Dictionary keys */ \
+	(contentSource) \
+	(translateMeshes) \
+	(translateShapes) \
+	(translateLights) \
+	(translateCameras) \
+	(translateMaterials) \
+	(translateHidden) \
+	(translateSkin) \
+	(translateMorpher) \
+	(useUSDVisibility) \
+	(allowNestedGprims) \
+	(shadingMode) \
+	(allMaterialConversions) \
+	(usdStagesAsReferences) \
+	(fileFormat) \
+	(upAxis) \
+	/* Mesh Conversion Options */ \
+	(meshConversionOptions) \
+	(timeMode) \
+	/* Time Config (start)*/ \
+	(startFrame) \
+	(endFrame) \
+	(samplesPerFrame) \
+	/* Time Config (end)*/ \
+	(rootPrimPath) \
+	(openInUsdView) \
+	(mtlSwitcherExportStyle) \
+	(useProgressBar) \
+	(separateMaterialLayer) \
+	(materialLayerPath) \
+	(materialPrimPath) \
+	(useLastResortUSDPreviewSurfaceWriter) \
+	(bonesPrimName) \
+	(animationsPrimName) \
+	(version)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdUsdSceneBuilderOptionsTokens,
+    MaxUSDAPI,
+    PXR_MAXUSD_USD_SCENE_BUILDER_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief USD Scene Build configuration options.
+ */
+class USDSceneBuilderOptions : public SceneBuilderOptions
+{
+public:
+    /**
+     * \brief Source of the	content to build.
+     */
+    enum class MaxUSDAPI ContentSource
+    {
+        RootNode,  ///< Build from the Root Node of the 3ds Max scene.
+        Selection, ///< Build from the Nodes selected in the 3ds Max scene.
+        NodeList   ///< Build from a nodes list.
+    };
+
+    /**
+     * \brief Up axis to use upon export.
+     * \comment value of enum is important as it reflects the index in the ui of qcombobox
+     */
+    enum class MaxUSDAPI UpAxis
+    {
+        Z = 0,
+        Y = 1
+    };
+
+    /**
+     * \brief The USD file type to be used on export.
+     */
+    enum class MaxUSDAPI FileFormat
+    {
+        ASCII,
+        Binary
+    };
+
+    /**
+     * \brief Time mode for export.
+     */
+    enum class MaxUSDAPI TimeMode
+    {
+        CurrentFrame,
+        ExplicitFrame,
+        AnimationRange,
+        FrameRange
+    };
+
+    static MaxUSDAPI const double MIN_SAMPLES_PER_FRAME;
+    static MaxUSDAPI const double MAX_SAMPLES_PER_FRAME;
+
+#ifdef IS_MAX2024_OR_GREATER
+    /**
+     * \brief Material Switcher export style.
+     */
+    enum class MaxUSDAPI MtlSwitcherExportStyle
+    {
+        AsVariantSets,
+        ActiveMaterialOnly
+    };
+#endif
+
+public:
+    /**
+     * \brief Constructor.
+     */
+    MaxUSDAPI explicit USDSceneBuilderOptions() noexcept;
+
+    /**
+     * \brief This is used internally to initialize the options from a dictionary,
+     * and it is a costly operation due to the validation of the dictionary.
+     * \param dict The dictionary to initialize the options from.
+     */
+    MaxUSDAPI explicit USDSceneBuilderOptions(const pxr::VtDictionary& dict) noexcept;
+
+    /**
+     * \brief Copies the values from an existing options object.
+     */
+    MaxUSDAPI void SetOptions(const USDSceneBuilderOptions& options);
+
+    /**
+     * \brief Set the the default option values.
+     */
+    MaxUSDAPI void SetDefaults();
+
+    /**
+     * \brief Returns a copy of the current USDSceneBuilderOptions with
+     * the JobContext option overrides applied on that copy
+     */
+    MaxUSDAPI USDSceneBuilderOptions OptionsWithAppliedContexts() const;
+
+    /**
+     * \brief Build USD content from the given 3ds Max content source.
+     * \param contentSource Source of the 3ds Max content from which to build the USD scene.
+     */
+    MaxUSDAPI void SetContentSource(const ContentSource& contentSource);
+
+    /**
+     * \brief Return the 3ds Max content source from which to build the USD scene.
+     * \return The 3ds Max content source from which to build the USD scene.
+     */
+    MaxUSDAPI ContentSource GetContentSource() const;
+
+    /**
+     * \brief Translate 3ds Max meshes into USD meshes.
+     * \param translateMeshes "true" to translate 3ds Max meshes into USD meshes.
+     */
+    MaxUSDAPI void SetTranslateMeshes(bool translateMeshes);
+
+    /**
+     * \brief Check if 3ds Max meshes should be translated into	USD meshes.
+     * \return "true" if the 3ds Max meshes should be translated into USD meshes.
+     */
+    MaxUSDAPI bool GetTranslateMeshes() const;
+
+    /**
+     * \brief Translate 3ds Max shapes into USD meshes.
+     * \param translateMeshes "true" to translate 3ds Max meshes into USD meshes.
+     */
+    MaxUSDAPI void SetTranslateShapes(bool translateShapes);
+
+    /**
+     * \brief Check if 3ds Max shapes should be translated into USD meshes.
+     * \return "true" if the 3ds Max shapes should be translated into USD meshes.
+     */
+    MaxUSDAPI bool GetTranslateShapes() const;
+
+    /**
+     * \brief Translate 3ds Max lights into USD lights.
+     * \param translateLights "true" to translate 3ds Max lights into USD lights.
+     */
+    MaxUSDAPI void SetTranslateLights(bool translateLights);
+
+    /**
+     * \brief Check if 3ds Max lights should be translated into USD lights.
+     * \return "true" if the 3ds Max lights should be translated into USD lights.
+     */
+    MaxUSDAPI bool GetTranslateLights() const;
+
+    /**
+     * \brief Translate 3ds Max cameras into USD cameras.
+     * \param translateCameras "true" to translate 3ds Max cameras into USD cameras.
+     */
+    MaxUSDAPI void SetTranslateCameras(bool translateCameras);
+
+    /**
+     * \brief Check if 3ds Max cameras should be translated into USD cameras.
+     * \return "true" if the 3ds Max cameras should be translated into USD cameras.
+     */
+    MaxUSDAPI bool GetTranslateCameras() const;
+
+    /**
+     * \brief Translate 3ds Max materials into USD
+     * \param translateMaterials "true" to translate materials
+     */
+    MaxUSDAPI void SetTranslateMaterials(bool translateMaterials);
+
+    /**
+     * \brief Check if materials should be translated
+     * \return "true" if materials should be translated
+     */
+    MaxUSDAPI bool GetTranslateMaterials() const;
+
+    /**
+     * \brief Translate 3ds Max skin and skeleton into USD
+     * \param trasnlateSkin "true" to translate skin and skeleton
+     */
+    MaxUSDAPI void SetTranslateSkin(bool trasnlateSkin);
+
+    /**
+     * \brief Check if skin and skeleton should be translated
+     * \return "true" if skin and skeleton should be translated
+     */
+    MaxUSDAPI bool GetTranslateSkin() const;
+
+    /**
+     * \brief Translate 3ds Max morphers modifiers into USD as Blendshapes
+     * \param translateMorpher "true" to translate morphers modifiers
+     */
+    MaxUSDAPI void SetTranslateMorpher(bool translateMorpher);
+
+    /**
+     * \brief Check if morpher modifiers should be translated as USD Blendshapes
+     * \return "true" if morphers modifiers should be translated as USD Blendshapes
+     */
+    MaxUSDAPI bool GetTranslateMorpher() const;
+
+    /**
+     * \brief Sets the shading schema (mode) to use for material export
+     * \param shadingMode The shading schema (mode) to apply on material export
+     */
+    MaxUSDAPI void SetShadingMode(const pxr::TfToken& shadingMode);
+
+    /**
+     * \brief Gets the shading schema (mode) to use for material export
+     * \return The shading schema (mode) to apply on materials
+     */
+    MaxUSDAPI pxr::TfToken GetShadingMode() const;
+
+    /**
+     * \brief Sets the set of targeted materials for material conversion
+     * \param materialConversions USD Material target set to convert to
+     */
+    MaxUSDAPI void SetAllMaterialConversions(const std::set<pxr::TfToken>& materialConversions);
+
+    /**
+     * \brief Gets the set of targeted materials for material conversion
+     * \return USD Material target set to convert to
+     */
+    MaxUSDAPI const std::set<pxr::TfToken>& GetAllMaterialConversions() const;
+
+    /**
+     * \brief Sets the USD material type targeted to convert the 3ds Max materials
+     * \param shader The USD Material type to convert to
+     */
+    MaxUSDAPI void SetConvertMaterialsTo(pxr::TfToken shader) { convertMaterialsTo = shader; }
+
+    /**
+     * \brief Token identifier of the USD material type targeted to convert the 3ds Max materials
+     * \return USD Material type to convert to
+     */
+    MaxUSDAPI pxr::TfToken GetConvertMaterialsTo() const { return convertMaterialsTo; }
+
+    /**
+     * \brief Sets whether USD Stage Objects should be exported as USD References.
+     * \param usdStagesAsReferences "true" if USD Stages should be exported as references.
+     */
+    MaxUSDAPI void SetUsdStagesAsReferences(bool usdStagesAsReferences);
+
+    /**
+     * \brief Checks if USD Stage Objects should be exported as USD References.
+     * \return "true" if USD Stages should be exported as references.
+     */
+    MaxUSDAPI bool GetUsdStagesAsReferences() const;
+
+    /**
+     * \brief Sets whether hidden objects should be translated.
+     * \param translateHiddenObjects True to translate hidden objects, false otherwise.
+     */
+    MaxUSDAPI void SetTranslateHidden(bool translateHiddenObjects);
+
+    /**
+     * \brief Check if hidden objects should be translated.
+     * \return True if hidden objects should be translated, false otherwise.
+     */
+    MaxUSDAPI bool GetTranslateHidden() const;
+
+    /**
+     * \brief Sets whether we should attempt to match the Hidden state in Max with the USD
+     * visibility attribute.
+     * \param useUSDVibility True if hidden objects should be flagged invisible using the USD
+     * visibility attribute.
+     */
+    MaxUSDAPI void SetUseUSDVisibility(bool useUSDVibility);
+
+    /**
+     * \brief Check if we should attempt to match the Hidden state in Max with the USD visibility
+     * attribute.
+     * \return True if hidden objects should be flagged invisible using the USD visibility
+     * attribute.
+     */
+    MaxUSDAPI bool GetUseUSDVisibility() const;
+
+    /**
+     * \brief Set the internal format of the USD file to export.
+     * \param saveFormat Format of the file to export.
+     */
+    MaxUSDAPI void SetFileFormat(const FileFormat& format);
+
+    /**
+     * \brief Return the format of the file to export.
+     * \return The format of the file to export.
+     */
+    MaxUSDAPI FileFormat GetFileFormat() const;
+
+    /**
+     * \brief Sets how normals should be exported.
+     * \param normalsMode The normals export mode.
+     */
+    MaxUSDAPI void SetNormalsMode(const MaxMeshConversionOptions::NormalsMode& normalsMode);
+
+    /**
+     * \brief Return how normals should be exported.
+     * \return The normals export mode.
+     */
+    MaxUSDAPI MaxMeshConversionOptions::NormalsMode GetNormalsMode() const;
+
+    /**
+     * \brief Sets how meshes should be exported.
+     * \param meshFormat The mesh format to be used.
+     */
+    MaxUSDAPI void SetMeshFormat(const MaxMeshConversionOptions::MeshFormat& meshFormat);
+
+    /**
+     * \brief Return how meshes should be exported.
+     * \return The mesh format in use.
+     */
+    MaxUSDAPI MaxMeshConversionOptions::MeshFormat GetMeshFormat() const;
+
+    /**
+     * \brief Set the "up axis" of the USD Stage produced from the translation of the 3ds Max
+     * content.
+     * \param upAxis Up axis of the USD Stage produced from the translation of the 3ds Max content.
+     */
+    MaxUSDAPI void SetUpAxis(const UpAxis& upAxis);
+
+    /**
+     * \brief Return the "up axis" of the USD Stage produced from the translation of the 3ds Max
+     * content.
+     * \return The "up axis" of the USD Stage produced from the translation of the 3ds Max content.
+     */
+    MaxUSDAPI UpAxis GetUpAxis() const;
+
+    /**
+     * \brief Gets the mesh conversion options
+     * \return The mesh conversion options.
+     */
+    MaxUSDAPI const MaxMeshConversionOptions GetMeshConversionOptions() const;
+
+    /**
+     * \brief Sets the mesh conversion options
+     * \param meshConversionOptions The mesh conversion options to set.
+     */
+    MaxUSDAPI void SetMeshConversionOptions(const MaxMeshConversionOptions& meshConversionOptions);
+
+    /**
+     * \brief Sets the nodes to convert to USD.
+     * \param nodes The nodes to convert to USD.
+     */
+    MaxUSDAPI void SetNodesToExport(const Tab<INode*>& nodes);
+
+    /**
+     * \brief Gets the nodes to convert to USD.
+     * \return The nodes to convert to USD.
+     */
+    MaxUSDAPI const Tab<INode*>& GetNodesToExport() const;
+
+    /**
+     * \brief Sets the time mode for export, either CURRENT or EXPLICIT. If explicit, export from
+     * the time specified by the Time property.
+     * \param timeMode The time mode to set.
+     */
+    MaxUSDAPI void SetTimeMode(const TimeMode& timeMode);
+
+    /**
+     * \brief Gets the time mode to be used for export.
+     * \return The time mode.
+     */
+    MaxUSDAPI TimeMode GetTimeMode() const;
+
+    /**
+     * \brief Sets the first frame from which to export, only used if the time mode is EXPLICIT or
+     * FRAME_RANGE.
+     * \param time The first frame to use for export.
+     */
+    MaxUSDAPI void SetStartFrame(double startFrame);
+
+    /**
+     * \brief Gets the first frame from which to export, only used if the time mode is configured as
+     * EXPLICIT or FRAME_RANGE.
+     * \return The first frame to use for export.
+     */
+    MaxUSDAPI double GetStartFrame() const;
+
+    /**
+     * \brief Sets the last frame from which to export, only used if the time mode is FRAME_RANGE.
+     * \param time The last frame to use for export.
+     */
+    MaxUSDAPI void SetEndFrame(double endFrame);
+
+    /**
+     * \brief Gets the last frame from which to export, only used if the time mode is configured as
+     * FRAME_RANGE.
+     * \return The last frame to use for export.
+     */
+    MaxUSDAPI double GetEndFrame() const;
+
+    /**
+     * \brief Sets the number of samples to be exported to USD, per frame.
+     * \param samplesPerFrame The number of samples per frame.
+     */
+    MaxUSDAPI void SetSamplesPerFrame(double samplesPerFrame);
+
+    /**
+     * \brief Gets the number of samples to be exported to USD, per frame.
+     * \return The number of samples per frame.
+     */
+    MaxUSDAPI double GetSamplesPerFrame() const;
+
+    /**
+     * \brief Resolves the actual time configuration from the selected TimeMode, the set values for
+     * startFrame and endFrame, and the current max time slider configuration. For example, if the
+     * time mode is ANIMATION_RANGE, the start and end frames in the returned time config will be
+     * set from the current time slider configuration in the scene.
+     * \return The time configuration, directly usable.
+     */
+    MaxUSDAPI MaxUsd::TimeConfig GetResolvedTimeConfig() const;
+
+    /**
+     * \brief Sets the root prim path to export to.
+     * \param value The root prim path to configure.
+     */
+    MaxUSDAPI void SetRootPrimPath(const pxr::SdfPath& rootPrimPath);
+
+    /**
+     * \brief Gets the configured root prim path.
+     * \return The configured root prim path.
+     */
+    MaxUSDAPI const pxr::SdfPath& GetRootPrimPath() const;
+
+    /**
+     * \brief Gets the configured bone prim name.
+     * \return The configured bone prim name.
+     */
+    MaxUSDAPI const pxr::TfToken& GetBonesPrimName() const;
+
+    /**
+     * \brief Set the the name to be used for the bone prim
+     * \param bonesPrimName New name to be used for the bone prim
+     */
+    MaxUSDAPI void SetBonesPrimName(const pxr::TfToken& bonesPrimName);
+
+    /**
+     * \brief Gets the configured animation prim name.
+     * \return The configured animation prim name.
+     */
+    MaxUSDAPI const pxr::TfToken& GetAnimationsPrimName() const;
+
+    /**
+     * \brief Set the the name to be used for the Animation prim
+     * \param animationsPrimName New name to be used for the Animation prim
+     */
+    MaxUSDAPI void SetAnimationsPrimName(const pxr::TfToken& animationsPrimName);
+
+    /**
+     * \brief Whether or not the produced USD file should be opened in Usdview at
+     * the end of the export.
+     * \param openInUsdview "true" to open the file in usdview when the export completes.
+     */
+    MaxUSDAPI void SetOpenInUsdview(bool openInUsdview);
+
+    /**
+     * \brief Check if the produced USD file should be opened in Usdview at
+     * the end of the export.
+     * \return "true" if the produced file should be open in usdview.
+     */
+    MaxUSDAPI bool GetOpenInUsdview() const;
+
+    /**
+     * \brief Sets whether or not the exporter should allow nested Gprims. Nested gprims
+     * are technically illegal in USD, but will still work in many usage scenarios. Allowing
+     * nested Gprims may significantly reduces the number of total primitives, potentially
+     * improving performance. The output USD structure will also match closer to the source
+     * 3dsMax scene structure.
+     * \param allowNestedGprims True if nesting GPrims is allowed.
+     */
+    MaxUSDAPI void SetAllowNestedGprims(bool allowNestedGprims);
+
+    /**
+     * \brief Gets whether or not the exporter should allow nested Gprims. Nested gprims
+     * are technically illegal in USD, but will still work in many usage scenarios. Allowing
+     * nested Gprims may significantly reduces the number of total primitives, potentially
+     * improving performance. The output USD structure will also match closer to the source
+     * 3dsMax scene structure.
+     * \return True if nesting GPrims is allowed. False otherwise.
+     */
+    MaxUSDAPI bool GetAllowNestedGprims() const;
+
+#ifdef IS_MAX2024_OR_GREATER
+    /**
+     * \brief Sets the Material Switcher export style to use at export
+     * \param exportStyle The Material Switcher export style to apply at export
+     */
+    MaxUSDAPI void SetMtlSwitcherExportStyle(const MtlSwitcherExportStyle& exportStyle);
+
+    /**
+     * \brief Gets the Material Switcher export style to use at export
+     * \return Material Switcher export style used at export
+     */
+    MaxUSDAPI const MtlSwitcherExportStyle GetMtlSwitcherExportStyle() const;
+#endif
+
+    /**
+     * \brief Gets whether to use the progress bar or not.
+     * \return True if the progress bar should be used.
+     */
+    MaxUSDAPI bool GetUseProgressBar() const;
+
+    /**
+     * \brief Sets whether to use the progress bar.
+     */
+    MaxUSDAPI void SetUseProgressBar(bool useProgressBar);
+
+    /**
+     * \brief Sets the file path to export materials to.
+     * \param matPath The file path.
+     */
+    MaxUSDAPI void SetMaterialLayerPath(const std::string& matPath);
+
+    /**
+     * \brief Gets the file path to where materials are exported to.
+     * \return The file path.
+     */
+    MaxUSDAPI const std::string& GetMaterialLayerPath() const;
+
+    /**
+     * \brief Sets the prim path to export materials to.
+     * \param matRootpath The prim path.
+     */
+    MaxUSDAPI void SetMaterialPrimPath(const pxr::SdfPath& matRootpath);
+
+    /**
+     * \brief Gets the prim path where materials are exported to.
+     * \return The prim path.
+     */
+    MaxUSDAPI const pxr::SdfPath& GetMaterialPrimPath() const;
+
+    /**
+     * \brief Sets whether we should export to a separate material layer.
+     * \param useMaterialLayer True if layer should be part of another file.
+     */
+    MaxUSDAPI void SetUseSeparateMaterialLayer(bool useMaterialLayer);
+
+    /**
+     * \brief Checks whether we should export to a separate material layer.
+     * \return True if layer should be part of another file.
+     */
+    MaxUSDAPI bool GetUseSeparateMaterialLayer() const;
+
+    /**
+     * \brief Sets if the USD Preview Surface Material target should use the last resort shader
+     * writer if no writer can handle the conversion from a material type to UsdPreviewSurface, the
+     * last resort writer will just look at the Diffuse color of the material, which is part of the
+     * base material interface, and setup a UsdPreviewSurface with that diffuse color.
+     * \param useLastResortUSDPreviewSurfaceWriter True if the Last resort fallback should be used.
+     */
+    MaxUSDAPI void
+    SetUseLastResortUSDPreviewSurfaceWriter(bool useLastResortUSDPreviewSurfaceWriter);
+
+    /**
+     * \brief Checks if the USD Preview Surface Material target should use the last resort shader
+     * writer if no writer can handle the conversion from a material type to UsdPreviewSurface, the
+     * last resort writer will just look at the Diffuse color of the material, which is part of the
+     * base material interface, and setup a UsdPreviewSurface with that diffuse color.
+     * \return True if if the Last resort fallback should be used.
+     */
+    MaxUSDAPI bool GetUseLastResortUSDPreviewSurfaceWriter() const;
+
+    // export dialog specific state settings
+    // they differ from the export settings retained by the user at export
+    // some options need data to be displayed for the user to make a choice
+    // and that data is not kept between exports otherwise
+    struct MaxUSDAPI AnimationRollupData
+    {
+        bool   frameNumberDefault { true };
+        double frameNumber;
+        bool   frameRangeDefault { true };
+        double frameRangeStart;
+        double frameRangeEnd;
+    };
+
+    /**
+     * \brief Retrieve the animation rollup data used to initialize the export dialog
+     */
+    MaxUSDAPI void FetchAnimationRollupData(AnimationRollupData& animationRollupData) const;
+    /**
+     * \brief Save the animation rollup data to be used for a subsequent export dialog
+     * initialization Called when the user export to USD (dialog accept)
+     */
+    MaxUSDAPI void SaveAnimationRollupData(const AnimationRollupData& animationRollupData);
+
+protected:
+    /**
+     * \brief The dictionary holding the default state of all the options.
+     * \return The default options dictionary.
+     */
+    static const pxr::VtDictionary& GetDefaultDictionary();
+
+    /// Specifies the current targeted material being treated by the material export process
+    ///	this member is set by the process ONLY
+    pxr::TfToken convertMaterialsTo;
+    /// A List of nodes to export (if any).
+    /// Used when exporting with option USDSceneBuilderOptions::ContentSource::NodeList
+    Tab<INode*> nodesToExport;
+    // export animation rollup data
+    AnimationRollupData animationRollupData;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/CameraConversion/CameraConverter.cpp b/src/MaxUsd/CameraConversion/CameraConverter.cpp
new file mode 100644
index 0000000..80d5209
--- /dev/null
+++ b/src/MaxUsd/CameraConversion/CameraConverter.cpp
@@ -0,0 +1,264 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CameraConverter.h"
+
+#include <MaxUsd/Translators/ShadingModeExporterContext.h>
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+
+namespace MAXUSD_NS_DEF {
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+void CameraConverter::ToPhysicalCamera(
+    const pxr::UsdGeomCamera&   usdCamera,
+    MaxSDK::IPhysicalCamera*    maxCamera,
+    const MaxUsdReadJobContext& readContext)
+{
+    const auto prim = usdCamera.GetPrim();
+
+    TimeValue defaultTimeValue
+        = MaxUsd::GetMaxTimeValueFromUsdTimeCode(prim.GetStage(), UsdTimeCode::Default());
+
+    maxCamera->SetHorzLineState(TRUE);
+    maxCamera->Enable(TRUE);
+
+    // Projection type:
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetProjectionAttr(),
+        [maxCamera](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            TfToken projectionType = value.Get<TfToken>();
+            maxCamera->SetOrtho(projectionType == UsdGeomTokens->orthographic);
+            return true;
+        },
+        readContext,
+        false /* if not authored, the projection type default will be applied */);
+
+    // Clipping range:
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetClippingRangeAttr(),
+        [maxCamera](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            GfVec2f clippingRange = value.Get<GfVec2f>();
+            float   nearDistance = std::min(clippingRange[0], clippingRange[1]);
+            float   farDistance = std::max(clippingRange[0], clippingRange[1]);
+
+            maxCamera->SetManualClip(TRUE);
+            maxCamera->SetClipDist(timeValue, CAM_HITHER_CLIP, nearDistance);
+            maxCamera->SetClipDist(timeValue, CAM_YON_CLIP, farDistance);
+            return true;
+        },
+        readContext);
+
+    // Focus Distance
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+			usdCamera.GetFocusDistanceAttr(),
+			[maxCamera, prim](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+				float focus = value.Get<float>();
+
+				// the Focus Distance shall not be set to 0.f
+				if (focus == 0.0)
+				{
+					// set a default Focus Distance for the camera to properly work
+					// based on the default Free Camera setting
+					focus = 160.f;
+					MaxUsd::Log::Warn("Focus Distance is set to '0.0f' for camera '{0}'. Setting value to '160.f' to "
+									  "get a minimal working camera.",
+							prim.GetName().GetString());
+				}
+				maxCamera->SetTDist(timeValue, focus);
+				return true;
+			},
+			readContext,
+			false /* if not authored, 'focus' will be set to 0 and a default will be applied by this method */);
+
+    // USD Cameras are not targeted.
+    auto camParamBlock = maxCamera->GetParamBlock(0);
+    camParamBlock->SetValueByName(L"targeted", false, 0);
+
+    // Aperture horizontal (and its dependencies0
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetHorizontalApertureAttr(),
+        [camParamBlock, usdCamera, prim, defaultTimeValue](
+            const VtValue& value, const UsdTimeCode& timeCode, const TimeValue& timeValue) {
+            float horizontalAperture = value.Get<float>();
+
+            // Setting pb_film_width_mm in the physical camera is slow, because it loads presets, in
+            // order to set pb_film_preset to the "custom" preset. We can speed this up by checking
+            // if the preset is already on "Custom", and if so, directly assigning the value,
+            // instead of going through the setter. The setter also invalidates the camera
+            // internally - which this approach wont do. But the next call, to setup the length
+            // breathing will, so we should be ok.
+            const MCHAR* presetNameStr = nullptr;
+            Interval     valid = FOREVER;
+            camParamBlock->GetValue(
+                55 /*pb_film_preset*/, GetCOREInterface()->GetTime(), presetNameStr, valid);
+            const auto preset = std::wstring(presetNameStr);
+            if (L"Custom" != preset) {
+                camParamBlock->SetValue(4 /*pb_film_width_mm*/, timeValue, horizontalAperture);
+            } else {
+                PB2Value& raw = camParamBlock->GetPB2Value(4, timeValue);
+                raw.f = horizontalAperture;
+            }
+
+            // the lens breathing multiplier shall be set to 0 in order to
+            // keep the EffectiveLensFocalLength (used at export) equal to FilmWidth
+            camParamBlock->SetValue(54 /*pb_lens_breathing_amount*/, defaultTimeValue, 0.0f);
+
+            // horizontal offset
+            float horizontalApertureOffset = 0.0f;
+            if (usdCamera.GetHorizontalApertureOffsetAttr().IsAuthored()
+                && usdCamera.GetHorizontalApertureOffsetAttr().Get(
+                    &horizontalApertureOffset, timeCode)) {
+                // the value is stored has a percentage of the aperture size
+                camParamBlock->SetValue(
+                    39 /*pb_lens_horizontal_shift*/,
+                    timeValue,
+                    -(horizontalApertureOffset / horizontalAperture));
+            }
+
+            // vertical
+            float verticalAperture = 0.0f;
+            if (usdCamera.GetVerticalApertureAttr().IsAuthored()
+                && usdCamera.GetVerticalApertureAttr().Get(&verticalAperture, timeCode)) {
+                float aspect = horizontalAperture / verticalAperture;
+                if (GetCOREInterface()->GetRendImageAspect() != aspect) {
+                    MaxUsd::Log::Warn(
+                        "Vertical aperture is not imported for cameras. The aspect ratio ({0}) on "
+                        "'{1}' cannot stay the same in 3ds Max.",
+                        aspect,
+                        prim.GetName().GetString());
+                }
+
+                // vertical offset
+                float verticalApertureOffset = 0.0f;
+                if (usdCamera.GetVerticalApertureOffsetAttr().IsAuthored()
+                    && usdCamera.GetVerticalApertureOffsetAttr().Get(
+                        &verticalApertureOffset, timeCode)) {
+                    // the value is stored has a percentage of the aperture size
+                    camParamBlock->SetValue(
+                        40 /*pb_lens_vertical_shift*/,
+                        timeValue,
+                        -(verticalApertureOffset / verticalAperture / aspect));
+                }
+            }
+            return true;
+        },
+        readContext);
+
+    // Focal Length
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetFocalLengthAttr(),
+        [maxCamera, camParamBlock, defaultTimeValue](
+            const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            // the focal length is exported using the FOV and the Horizontal Aperture values
+            // both the focal length and zoom factor have an influence on the FOV value
+            // on import, only the focal length is kept has a the retained value
+            // zoom multiplier has no influence
+            camParamBlock->SetValue(
+                19 /*pb_fov_specify*/, defaultTimeValue, 0); // force uncheck 'Specify FOV'
+            camParamBlock->SetValue(7 /*pb_lens_zoom*/, defaultTimeValue, 1.0f);
+            camParamBlock->SetValue(5 /*pb_focal_length_mm*/, timeValue, value.Get<float>());
+            return true;
+        },
+        readContext);
+
+    // Lens Aperture
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetFStopAttr(),
+        [camParamBlock,
+         prim](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            float fstop = value.Get<float>();
+            // define default value in case attribute is set to 0.f
+            if (fstop == 0.0f) {
+                fstop = 8.f;
+                MaxUsd::Log::Warn(
+                    "FStop is set to '0.0' for camera '{0}'. Setting value to '8', the default "
+                    "value "
+                    "on a Physical camera, to let the camera see something.",
+                    prim.GetName().GetString());
+            }
+            camParamBlock->SetValue(6 /*pb_f_stop*/, timeValue, fstop);
+            return true;
+        },
+        readContext);
+
+    // shutter
+    // default shutter unit type
+    camParamBlock->SetValue(
+        12 /*pb_shutter_unit_type*/, defaultTimeValue, 3 /*PBShutterType_Frames*/);
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetShutterOpenAttr(),
+        [camParamBlock, usdCamera, prim, defaultTimeValue](
+            const VtValue& value, const UsdTimeCode& timeCode, const TimeValue& timeValue) {
+            double shutterOffset = value.Get<double>();
+            camParamBlock->SetValue(
+                16 /*pb_shutter_offset_relative*/,
+                timeValue,
+                MaxUsd::GetMaxFrameFromUsdFrameTime(prim.GetStage(), shutterOffset));
+            camParamBlock->SetValue(
+                17 /*pb_shutter_offset_enabled*/, defaultTimeValue, 1 /*true/enabled*/);
+
+            double shutterClose = 0.0f;
+            if (usdCamera.GetShutterCloseAttr().IsAuthored()
+                && usdCamera.GetShutterCloseAttr().Get(&shutterClose, timeCode)) {
+                float maxShutterClose = MaxUsd::GetMaxFrameFromUsdFrameTime(
+                    prim.GetStage(), shutterClose - shutterOffset);
+                // define default value in case attribute is set to 0.f
+                if (shutterClose == 0.0f) {
+                    maxShutterClose = 0.5f;
+                    MaxUsd::Log::Warn(
+                        "Shutter Close attribute is set to '0.0' for camera '{0}'. Setting value "
+                        "to "
+                        "'0.5', the default value on a Physical camera, to let the camera see "
+                        "something.",
+                        prim.GetName().GetString());
+                }
+                camParamBlock->SetValue(
+                    15 /*pb_shutter_length_relative*/, timeValue, maxShutterClose);
+            }
+            return true;
+        },
+        readContext);
+
+    // exposure
+    // TODO - missing 'Install Exposure Control' to be enabled
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdCamera.GetExposureAttr(),
+        [camParamBlock, prim, defaultTimeValue](
+            const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            float exposure = value.Get<float>();
+            // define default value in case attribute is set to 0.f
+            if (exposure == 0.0f) {
+                exposure = 6.f;
+                MaxUsd::Log::Warn(
+                    "Exposure attribute is set to '0.0' for camera '{0}'. Setting value to "
+                    "'6' EV, the default "
+                    "value on a Physical camera, to prevent rendering the scene all white.",
+                    prim.GetName().GetString());
+            }
+            camParamBlock->SetValue(24 /*pb_exposure_value*/, timeValue, exposure);
+            camParamBlock->SetValue(
+                22 /*pb_exposure_gain_type*/, defaultTimeValue, 1 /*PBExposureGainType_EV*/);
+            return true;
+        },
+        readContext);
+}
+} // namespace MAXUSD_NS_DEF
+// Disable obscure warning only occurring for 2022 (pixar usd version: 21.11):
+// no definition for inline function : pxr::DefaultValueHolder Was not able to identify what is
+// triggering this.
+#pragma warning(disable : 4506)
\ No newline at end of file
diff --git a/src/MaxUsd/CameraConversion/CameraConverter.h b/src/MaxUsd/CameraConversion/CameraConverter.h
new file mode 100644
index 0000000..858e4d1
--- /dev/null
+++ b/src/MaxUsd/CameraConversion/CameraConverter.h
@@ -0,0 +1,37 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+
+#include <pxr/usd/usdGeom/camera.h>
+
+#include <Scene/IPhysicalCamera.h>
+
+namespace MAXUSD_NS_DEF {
+
+/// Camera Conversion utility Class
+class MaxUSDAPI CameraConverter
+{
+public:
+    static void ToPhysicalCamera(
+        const pxr::UsdGeomCamera&        usdCamera,
+        MaxSDK::IPhysicalCamera*         maxCamera,
+        const pxr::MaxUsdReadJobContext& readContext);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/ChannelBuilder.cpp b/src/MaxUsd/ChannelBuilder.cpp
new file mode 100644
index 0000000..480a4b5
--- /dev/null
+++ b/src/MaxUsd/ChannelBuilder.cpp
@@ -0,0 +1,249 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ChannelBuilder.h"
+
+#include "Utilities/Logging.h"
+#include "Utilities/TranslationUtils.h"
+
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+namespace MAXUSD_NS_DEF {
+
+ChannelBuilder::ChannelBuilder(MNMesh* mesh, bool leftHandedOrientation) noexcept
+{
+    this->mesh = mesh;
+    this->leftHandedOrientation = leftHandedOrientation;
+}
+
+template <class ArrayType>
+void ChannelBuilder::FillChannelDataValues(
+    pxr::VtValue&                         values,
+    std::function<Point3(ArrayType, int)> point3FromValue)
+{
+    values.Cast<ArrayType>();
+    const auto& primvarData = values.UncheckedGet<ArrayType>();
+    for (int i = 0; i < primvarData.size(); ++i) {
+        Point3 data = point3FromValue(primvarData, i);
+        SetChannelDataValue(i, data);
+    }
+}
+
+bool ChannelBuilder::Build(
+    const pxr::UsdAttribute&   attribute,
+    const pxr::TfToken&        interpolation,
+    const pxr::UsdGeomPrimvar* primvar,
+    const pxr::UsdGeomMesh     usdMesh,
+    const pxr::UsdTimeCode&    timeCode)
+{
+    // Make sure the type's dimension is supported.
+    const auto dimension = MaxUsd::GetTypeDimension(attribute.GetTypeName());
+    if (dimension > 4) {
+        MaxUsd::Log::Warn(
+            "Attribute {0} on {1} is of dimension {2} and cannot be imported to a 3dsMax channel.",
+            attribute.GetName().GetString(),
+            attribute.GetPrim().GetPath().GetString(),
+            dimension);
+        return false;
+    }
+
+    pxr::VtValue values;
+    attribute.Get(&values, timeCode);
+
+    // Make sure the data can cast to floats, so that it can be loaded into max channels.
+    if (!values.CanCast<pxr::VtVec4fArray>() && !values.CanCast<pxr::VtVec3fArray>()
+        && !values.CanCast<pxr::VtVec2fArray>() && !values.CanCast<pxr::VtFloatArray>()) {
+        MaxUsd::Log::Warn(
+            "Attribute {0} on {1} cannot be cast to a float array, and therefore cannot be "
+            "imported to a 3dsMax channel.",
+            attribute.GetName().GetString(),
+            attribute.GetPrim().GetPath().GetString());
+        return false;
+    }
+
+    const bool      isIndexed = primvar && primvar->IsIndexed();
+    pxr::VtIntArray primvarIndices;
+    if (isIndexed) {
+        primvar->GetIndices(&primvarIndices, timeCode);
+    }
+
+    const auto valueCount = values.GetArraySize();
+    if (!MaxUsd::ValidateMappedDataForMesh(
+            valueCount, primvarIndices, *mesh, interpolation, isIndexed)) {
+        MaxUsd::Log::Warn(
+            "The data of {0} on {1} is badly formed, and therefore cannot be imported to a 3dsMax "
+            "channel.",
+            attribute.GetName().GetString(),
+            attribute.GetPrim().GetPath().GetString());
+        return false;
+    }
+
+    SetupChannel(mesh->FNum(), int(valueCount));
+
+    // Fill the channel's vertex values, padding with zeros if necessary for a type.
+    switch (dimension) {
+    case 1:
+        FillChannelDataValues<pxr::VtFloatArray>(
+            values, [](const pxr::VtFloatArray& data, int index) {
+                return Point3(data[index], 0.0f, 0.0f);
+            });
+        break;
+    case 2:
+        FillChannelDataValues<pxr::VtVec2fArray>(
+            values, [](const pxr::VtVec2fArray& data, int index) {
+                return Point3(data[index][0], data[index][1], 0.0f);
+            });
+        break;
+    case 3:
+        FillChannelDataValues<pxr::VtVec3fArray>(
+            values, [](const pxr::VtVec3fArray& data, int index) {
+                return Point3(data[index][0], data[index][1], data[index][2]);
+            });
+        break;
+    case 4:
+        MaxUsd::Log::Warn(
+            "Attribute {0} on {1} is of dimension 4, it will be cropped to 3 dimensions in order "
+            "to import it to a 3dsMax channel.",
+            attribute.GetName().GetString(),
+            attribute.GetPrim().GetPath().GetString());
+        FillChannelDataValues<pxr::VtVec4fArray>(
+            values, [](const pxr::VtVec4fArray& data, int index) {
+                return Point3(data[index][0], data[index][1], data[index][2]); // 4th value ignored.
+            });
+        break;
+    }
+
+    int faceVertexIndex = 0;
+    for (int i = 0; i < mesh->FNum(); ++i) {
+        const int degree = mesh->F(i)->deg;
+        CreateChannelFace(i, degree);
+        for (int j = 0; j < degree; ++j) {
+            // One value per vertex.
+            if (interpolation == pxr::UsdGeomTokens->vertex
+                || interpolation == pxr::UsdGeomTokens->varying) {
+                const auto vertexIndex = mesh->F(i)->vtx[j];
+                const int  dataIndex = isIndexed ? primvarIndices[vertexIndex] : vertexIndex;
+                SetChannelFaceData(i, j, dataIndex);
+            }
+            // One value per face-vertex
+            else if (interpolation == pxr::UsdGeomTokens->faceVarying) {
+                const int dataIndex = isIndexed ? primvarIndices[faceVertexIndex] : faceVertexIndex;
+                SetChannelFaceData(i, j, dataIndex);
+                faceVertexIndex++;
+            }
+            // One value per face.
+            else if (interpolation == pxr::UsdGeomTokens->uniform) {
+                const auto dataIndex = isIndexed ? primvarIndices[i] : i;
+                SetChannelFaceData(i, j, dataIndex);
+            }
+            // One value for the whole mesh : pxr::UsdGeomTokens->constant
+            else {
+                SetChannelFaceData(i, j, 0);
+            }
+        }
+        // If the USD geometry has a left handed orientation, make sure the channel faces are
+        // flipped to match Max's orientation. We only need to flip the faces for "faceVarying"
+        // data. Indeed, for vertex varying data, we fetched the indices from the imported mesh's
+        // face, which is already flipped. For "uniform" and "constant" interpolations, the data
+        // indices will be the same across the whole face, and so flipping the vertex indice order
+        // would make no difference.
+        if (leftHandedOrientation && interpolation == pxr::UsdGeomTokens->faceVarying) {
+            FlipChannelFace(i);
+        }
+    }
+    FinalizeChannel();
+    return true;
+}
+
+NormalsBuilder::NormalsBuilder(MNMesh* mesh, bool leftHandedOrientation) noexcept
+    : ChannelBuilder(mesh, leftHandedOrientation)
+{
+}
+
+void NormalsBuilder::SetupChannel(int faceCount, int dataCount)
+{
+    // Setup explicit normals.
+    mesh->SpecifyNormals();
+    specifiedNormals = mesh->GetSpecifiedNormals();
+    specifiedNormals->SetParent(mesh);
+
+    specifiedNormals->NAlloc(dataCount);
+    specifiedNormals->SetNumNormals(dataCount);
+    specifiedNormals->SetNumFaces(faceCount);
+}
+
+void NormalsBuilder::SetChannelDataValue(int index, const Point3& value)
+{
+    specifiedNormals->Normal(index) = value;
+}
+
+void NormalsBuilder::CreateChannelFace(int faceIndex, int faceDegree)
+{
+    specifiedNormals->Face(faceIndex).SetDegree(faceDegree);
+    specifiedNormals->Face(faceIndex).SpecifyAll();
+}
+
+void NormalsBuilder::SetChannelFaceData(int faceIndex, int faceCorner, int dataIndex)
+{
+    specifiedNormals->SetNormalIndex(faceIndex, faceCorner, dataIndex);
+}
+
+void NormalsBuilder::FlipChannelFace(int faceIndex) { specifiedNormals->Face(faceIndex).Flip(); }
+
+void NormalsBuilder::FinalizeChannel()
+{
+    specifiedNormals->SetAllExplicit();
+    specifiedNormals->CheckNormals();
+    mesh->InvalidateGeomCache();
+}
+
+MapBuilder::MapBuilder(MNMesh* mesh, int channelId, bool leftHandedOrientation) noexcept
+    : ChannelBuilder(mesh, leftHandedOrientation)
+{
+    this->channelIndex = channelId;
+}
+
+void MapBuilder::SetupChannel(int faceCount, int dataCount)
+{
+    mesh->SetMapNum(std::max(channelIndex + 1, mesh->MNum()));
+    map = mesh->M(channelIndex);
+    map->ClearAndFree();
+    map->ClearFlag(MN_DEAD);
+    map->setNumFaces(faceCount);
+    map->setNumVerts(dataCount);
+}
+
+void MapBuilder::SetChannelDataValue(int dataIndex, const Point3& value)
+{
+    map->v[dataIndex] = value;
+}
+
+void MapBuilder::CreateChannelFace(int faceIndex, int faceDegree)
+{
+    map->F(faceIndex)->SetSize(faceDegree);
+}
+
+void MapBuilder::SetChannelFaceData(int faceIndex, int faceCorner, int dataIndex)
+{
+    map->F(faceIndex)->tv[faceCorner] = dataIndex;
+}
+
+void MapBuilder::FlipChannelFace(int faceIndex) { map->F(faceIndex)->Flip(); }
+
+void MapBuilder::FinalizeChannel()
+{
+    // Nothing to do.
+}
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/ChannelBuilder.h b/src/MaxUsd/ChannelBuilder.h
new file mode 100644
index 0000000..a4f6f75
--- /dev/null
+++ b/src/MaxUsd/ChannelBuilder.h
@@ -0,0 +1,95 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+#include "MaxUSDAPI.h"
+
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/primvar.h>
+
+#include <MaxUsd.h>
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+
+class MaxUSDAPI ChannelBuilder
+{
+public:
+    explicit ChannelBuilder(MNMesh* mesh, bool leftHandedOrientation) noexcept;
+
+    struct Config
+    {
+        pxr::TfToken primvarName;
+    };
+    bool Build(
+        const pxr::UsdAttribute&   attribute,
+        const pxr::TfToken&        interpolation,
+        const pxr::UsdGeomPrimvar* primvar,
+        pxr::UsdGeomMesh           usdMesh,
+        const pxr::UsdTimeCode&    timeCode);
+
+protected:
+    virtual void SetupChannel(int faceCount, int dataCount) = 0;
+    virtual void SetChannelDataValue(int dataIndex, const Point3&) = 0;
+    virtual void CreateChannelFace(int faceIndex, int faceDegree) = 0;
+    virtual void SetChannelFaceData(int faceIndex, int faceCorner, int dataIndex) = 0;
+    virtual void FlipChannelFace(int faceIndex) = 0;
+    virtual void FinalizeChannel() = 0;
+
+    MNMesh* mesh;
+    bool    leftHandedOrientation;
+
+private:
+    template <class ArrayType>
+    void FillChannelDataValues(
+        pxr::VtValue&                         values,
+        std::function<Point3(ArrayType, int)> point3FromValue);
+};
+
+class MaxUSDAPI NormalsBuilder : public ChannelBuilder
+{
+public:
+    explicit NormalsBuilder(MNMesh* mesh, bool leftHandedOrientation = false) noexcept;
+
+protected:
+    void         SetupChannel(int faceCount, int dataCount) override;
+    void         SetChannelDataValue(int dataIndex, const Point3&) override;
+    virtual void CreateChannelFace(int faceIndex, int faceDegree) override;
+    virtual void SetChannelFaceData(int faceIndex, int faceCorner, int dataIndex) override;
+    virtual void FlipChannelFace(int faceIndex) override;
+    virtual void FinalizeChannel() override;
+
+    MNNormalSpec* specifiedNormals;
+};
+
+class MaxUSDAPI MapBuilder : public ChannelBuilder
+{
+public:
+    MapBuilder(MNMesh* mesh, int channelId, bool leftHandedOrientation = false) noexcept;
+
+protected:
+    void         SetupChannel(int faceCount, int dataCount) override;
+    void         SetChannelDataValue(int dataIndex, const Point3&) override;
+    virtual void CreateChannelFace(int faceIndex, int faceDegree) override;
+    virtual void SetChannelFaceData(int faceIndex, int faceCorner, int dataIndex) override;
+    virtual void FlipChannelFace(int faceIndex) override;
+    virtual void FinalizeChannel() override;
+
+    MNMap* map;
+    int    channelIndex;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Chaser/ExportChaser.cpp b/src/MaxUsd/Chaser/ExportChaser.cpp
new file mode 100644
index 0000000..7c26fcf
--- /dev/null
+++ b/src/MaxUsd/Chaser/ExportChaser.cpp
@@ -0,0 +1,28 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "ExportChaser.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+bool MaxUsdExportChaser::PostExport()
+{
+    // Do nothing by default.
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Chaser/ExportChaser.h b/src/MaxUsd/Chaser/ExportChaser.h
new file mode 100644
index 0000000..40e3e9b
--- /dev/null
+++ b/src/MaxUsd/Chaser/ExportChaser.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/declarePtrs.h>
+#include <pxr/base/tf/refPtr.h>
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DECLARE_REF_PTRS(MaxUsdExportChaser);
+
+/// \brief base class for plugin chasers which are plugins that run after the
+/// core usdExport out of 3ds Max.
+///
+/// Chaser objects will be constructed after the initial export.
+/// Chasers should save necessary data when constructed. The constructor receives
+/// the Context. Save what you need from it so that you can make use of the information
+/// at the Chaser execution later.
+///
+/// Chasers should not modify the structure of the USD file. Use this to make
+/// small changes or to add attributes, in a non-destructive way, to an exported stage.
+class MaxUsdExportChaser : public TfRefBase
+{
+public:
+    ~MaxUsdExportChaser() override { }
+
+    /// Do custom post-processing that needs to run after the main MaxUsd
+    /// export loop.
+    /// At this point, all data has been authored to the stage (except for
+    /// any custom data that you'll author in this step).
+    virtual bool MaxUSDAPI PostExport();
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Chaser/ExportChaserRegistry.cpp b/src/MaxUsd/Chaser/ExportChaserRegistry.cpp
new file mode 100644
index 0000000..deb00f3
--- /dev/null
+++ b/src/MaxUsd/Chaser/ExportChaserRegistry.cpp
@@ -0,0 +1,168 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "ExportChaserRegistry.h"
+
+#include <MaxUsd/DebugCodes.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+
+#include <pxr/base/tf/instantiateSingleton.h>
+
+#include <map>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+	_tokens,
+
+	(MaxUsd)
+		(ExportChaser)
+);
+// clang-format on
+
+namespace {
+static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->ExportChaser };
+}
+
+MaxUsdExportChaserRegistry::FactoryContext::FactoryContext(
+    const UsdStagePtr&                    stage,
+    const PrimToNodeMap&                  primToNodeMap,
+    const MaxUsd::USDSceneBuilderOptions& jobArgs,
+    const fs::path&                       filename)
+    : stage(stage)
+    , primToNodeMap(primToNodeMap)
+    , jobArgs(jobArgs)
+    , filename(filename)
+{
+}
+
+UsdStagePtr MaxUsdExportChaserRegistry::FactoryContext::GetStage() const { return stage; }
+
+const MaxUsdExportChaserRegistry::FactoryContext::PrimToNodeMap&
+MaxUsdExportChaserRegistry::FactoryContext::GetPrimToNodeMap() const
+{
+    return primToNodeMap;
+}
+
+const MaxUsd::USDSceneBuilderOptions& MaxUsdExportChaserRegistry::FactoryContext::GetJobArgs() const
+{
+    return jobArgs;
+}
+
+const fs::path& MaxUsdExportChaserRegistry::FactoryContext::GetFilename() const { return filename; }
+
+TF_INSTANTIATE_SINGLETON(MaxUsdExportChaserRegistry);
+
+namespace {
+struct _HashInfo
+{
+    size_t operator()(const MaxUsdExportChaserRegistry::ChaserInfo& info) const
+    {
+        return info.chaser.Hash();
+    }
+};
+
+struct _EqualInfo
+{
+    bool operator()(
+        const MaxUsdExportChaserRegistry::ChaserInfo& lhs,
+        const MaxUsdExportChaserRegistry::ChaserInfo& rhs) const
+    {
+        return rhs.chaser == lhs.chaser;
+    }
+};
+
+using _ExportChaserRegistry
+    = std::unordered_set<MaxUsdExportChaserRegistry::ChaserInfo, _HashInfo, _EqualInfo>;
+static _ExportChaserRegistry _exportChaserRegistry;
+} // namespace
+
+bool MaxUsdExportChaserRegistry::RegisterFactory(
+    const std::string& chaser,
+    const std::string& niceName,
+    const std::string& description,
+    FactoryFn          fn,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY).Msg("Registering chaser '%s'.\n", chaser.c_str());
+    TfToken    key(chaser);
+    ChaserInfo newInfo { key, TfToken(niceName), TfToken(description), fn };
+    auto       itFound = _exportChaserRegistry.find(newInfo);
+    if (itFound == _exportChaserRegistry.end()) {
+        _exportChaserRegistry.insert(newInfo);
+        MaxUsd_RegistryHelper::AddUnloader(
+            [key]() {
+                ChaserInfo toErase { key, {}, {}, {} };
+                _exportChaserRegistry.erase(toErase);
+            },
+            fromPython);
+    } else {
+        TF_CODING_ERROR("Multiple export chasers named '%s'", chaser.c_str());
+        return false;
+    }
+    return true;
+}
+
+MaxUsdExportChaserRefPtr
+MaxUsdExportChaserRegistry::_Create(const std::string& name, const FactoryContext& context) const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdExportChaserRegistry>();
+
+    ChaserInfo key { TfToken(name), {}, {}, {} };
+    auto       it = _exportChaserRegistry.find(key);
+    return it != _exportChaserRegistry.end() ? TfCreateRefPtr(it->chaserFactory(context))
+                                             : TfNullPtr;
+}
+
+TfTokenVector MaxUsdExportChaserRegistry::_GetAllRegisteredChasers() const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdExportChaserRegistry>();
+
+    TfTokenVector ret;
+    ret.reserve(_exportChaserRegistry.size());
+    for (const auto& p : _exportChaserRegistry) {
+        ret.push_back(p.chaser);
+    }
+    return ret;
+}
+
+const MaxUsdExportChaserRegistry::ChaserInfo&
+MaxUsdExportChaserRegistry::_GetChaserInfo(const TfToken& chaser) const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdExportChaserRegistry>();
+    ChaserInfo              key { chaser, {}, {}, {} };
+    auto                    it = _exportChaserRegistry.find(key);
+    static const ChaserInfo _emptyInfo;
+    return it != _exportChaserRegistry.end() ? *it : _emptyInfo;
+}
+
+// static
+MaxUsdExportChaserRegistry& MaxUsdExportChaserRegistry::GetInstance()
+{
+    return TfSingleton<MaxUsdExportChaserRegistry>::GetInstance();
+}
+
+MaxUsdExportChaserRegistry::MaxUsdExportChaserRegistry() { }
+
+MaxUsdExportChaserRegistry::~MaxUsdExportChaserRegistry() { }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Chaser/ExportChaserRegistry.h b/src/MaxUsd/Chaser/ExportChaserRegistry.h
new file mode 100644
index 0000000..5c254de
--- /dev/null
+++ b/src/MaxUsd/Chaser/ExportChaserRegistry.h
@@ -0,0 +1,206 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "ExportChaser.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/declarePtrs.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/singleton.h>
+#include <pxr/pxr.h>
+
+#include <functional>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DECLARE_WEAK_PTRS(MaxUsdExportChaserRegistry);
+
+/// \class MaxUsdExportChaserRegistry
+/// \brief Registry for chaser plugins.
+class MaxUsdExportChaserRegistry : public TfWeakBase
+{
+public:
+    /// \brief Holds data that can be accessed when constructing a
+    /// MaxUsdExportChaser object.
+    ///
+    /// This class allows plugin code to only know about the context object
+    /// during construction and only need to know about the data it is needs to
+    /// construct.
+    class FactoryContext
+    {
+    public:
+        typedef TfHashMap<SdfPath, INode*, SdfPath::Hash> PrimToNodeMap;
+
+        MaxUSDAPI FactoryContext(
+            const UsdStagePtr&                    stage,
+            const PrimToNodeMap&                  primsToNodes,
+            const MaxUsd::USDSceneBuilderOptions& jobArgs,
+            const fs::path&                       filename);
+
+        /// \brief Returns the exported stage.
+        ///
+        /// It is safe for the MaxUsdExportChaser to save this return value and
+        /// use it during it's execution.
+        MaxUSDAPI UsdStagePtr GetStage() const;
+
+        /// \brief Returns a map that maps full USD prim paths to INodes.
+        ///
+        /// It is safe for the MaxUsdExportChaser to save this return value by
+        /// reference and use it during it's execution.
+        MaxUSDAPI const PrimToNodeMap& GetPrimToNodeMap() const;
+
+        /// \brief Returns the current job args.
+        ///
+        /// It is safe for the MaxUsdExportChaser to save this return value by
+        /// reference and use it during it's execution.
+        MaxUSDAPI const MaxUsd::USDSceneBuilderOptions& GetJobArgs() const;
+
+        /// \brief Returns the filename to which the stage exports to
+        ///
+        /// It is safe for the MaxUsdExportChaser to save this return value and
+        /// use it during it's execution.
+        MaxUSDAPI const fs::path& GetFilename() const;
+
+    private:
+        UsdStagePtr                           stage;
+        const PrimToNodeMap&                  primToNodeMap;
+        const MaxUsd::USDSceneBuilderOptions& jobArgs;
+        const fs::path&                       filename;
+    };
+
+    typedef std::function<MaxUsdExportChaser*(const FactoryContext&)> FactoryFn;
+
+    /// All the information registered for a chaser.
+    struct ChaserInfo
+    {
+        TfToken   chaser;
+        TfToken   niceName;
+        TfToken   description;
+        FactoryFn chaserFactory;
+
+        ChaserInfo() = default;
+
+        ChaserInfo(const TfToken& c, const TfToken& nn, const TfToken& cdsc, FactoryFn cf)
+            : chaser(c)
+            , niceName(nn)
+            , description(cdsc)
+            , chaserFactory(cf)
+        {
+        }
+    };
+
+    /// Gets the chaser information
+    static const ChaserInfo& GetChaserInfo(const TfToken& chaser)
+    {
+        return GetInstance()._GetChaserInfo(chaser);
+    }
+
+    /// \brief Register a chaser factory.
+    ///
+    /// Please use the PXR_MAXUSD_DEFINE_CHASER_FACTORY instead of calling
+    /// this directly.
+    /// \param chaser the referenced name in the chaser option list on export
+    /// \param niceName is the name displayed in the export options dialog.
+    /// \param description is displayed as a tooltip in the export options dialog.
+    ///
+    MaxUSDAPI bool RegisterFactory(
+        const std::string& chaser,
+        const std::string& niceName,
+        const std::string& description,
+        FactoryFn          fn,
+        bool               fromPython = false);
+
+    /// \brief Creates a chaser using the factoring registered to \p name.
+    MaxUSDAPI static MaxUsdExportChaserRefPtr
+    Create(const std::string& name, const FactoryContext& context)
+    {
+        return GetInstance()._Create(name, context);
+    }
+
+    /// \brief Returns the names of all registered chasers.
+    MaxUSDAPI static TfTokenVector GetAllRegisteredChasers()
+    {
+        return GetInstance()._GetAllRegisteredChasers();
+    }
+
+    MaxUSDAPI static MaxUsdExportChaserRegistry& GetInstance();
+
+private:
+    MaxUSDAPI TfTokenVector     _GetAllRegisteredChasers() const;
+    MaxUSDAPI const ChaserInfo& _GetChaserInfo(const TfToken&) const;
+    MaxUSDAPI MaxUsdExportChaserRefPtr
+    _Create(const std::string& name, const FactoryContext& context) const;
+
+    MaxUsdExportChaserRegistry();
+    ~MaxUsdExportChaserRegistry();
+    friend class TfSingleton<MaxUsdExportChaserRegistry>;
+};
+
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_4(name, niceName, description, contextArgName) \
+    static MaxUsdExportChaser* _ChaserFactory_##name(                                          \
+        const MaxUsdExportChaserRegistry::FactoryContext&);                                    \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdExportChaserRegistry, name)                            \
+    {                                                                                          \
+        MaxUsdExportChaserRegistry::GetInstance().RegisterFactory(                             \
+            #name, niceName, description, &_ChaserFactory_##name);                             \
+    }                                                                                          \
+    MaxUsdExportChaser* _ChaserFactory_##name(                                                 \
+        const MaxUsdExportChaserRegistry::FactoryContext& contextArgName)
+
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_3(name, niceName, contextArgName) \
+    PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_4(name, niceName, "", contextArgName)
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_2(name, contextArgName) \
+    PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_3(name, #name, contextArgName)
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_1(name) \
+    PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_2(name, ctx)
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_0()                                        \
+    static_assert(                                                                         \
+        false,                                                                             \
+        "Insufficient number of arguments for macro; expecting "                           \
+        "PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY(<chaserid>, <nice_name>, <description>, " \
+        "<context_arg_name>)");                                                            \
+    PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_1(InvalidChaserDeclaration)
+
+#define FUNC_CHOOSER_EXPORT(_f1, _f2, _f3, _f4, _f5, ...) _f5
+#define FUNC_RECOMPOSER_EXPORT(argsWithParentheses)       FUNC_CHOOSER_EXPORT argsWithParentheses
+#define CHOOSE_FROM_ARG_COUNT_EXPORT(...)           \
+    FUNC_RECOMPOSER_EXPORT(                         \
+        (__VA_ARGS__,                               \
+         PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_4, \
+         PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_3, \
+         PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_2, \
+         PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_1, ))
+#define NO_ARG_EXPANDER_EXPORT()  , , , , PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_0
+#define MACRO_CHOOSER_EXPORT(...) CHOOSE_FROM_ARG_COUNT_EXPORT(NO_ARG_EXPANDER_EXPORT __VA_ARGS__())
+
+/// \brief define a factory for the chaser name.
+/// /param name the chaser id to use when referenced in export options
+/// /param niceName the chaser name displayed in the USD export UI
+///                 (optional; chaser id is used if not provided)
+/// /param description the description of chaser (optional)
+/// /param contextArgName context argument of type MaxUsdExportChaserRegistry::FactoryContext.
+///                       (optional; the argument is named `ctx` if not provided)
+/// The following code block should return a MaxUsdExportChaser*.  There are no guarantees about
+/// the lifetime of contextArgName.
+// PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY_FULL(name, niceName, description, contextArgName)
+#define PXR_MAXUSD_DEFINE_EXPORT_CHASER_FACTORY(...) MACRO_CHOOSER_EXPORT(__VA_ARGS__)(__VA_ARGS__)
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Chaser/ImportChaser.cpp b/src/MaxUsd/Chaser/ImportChaser.cpp
new file mode 100644
index 0000000..f21c0bc
--- /dev/null
+++ b/src/MaxUsd/Chaser/ImportChaser.cpp
@@ -0,0 +1,28 @@
+//
+// Copyright 2021 Apple
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "ImportChaser.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+bool MaxUsdImportChaser::PostImport()
+{
+    // Do nothing by default.
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Chaser/ImportChaser.h b/src/MaxUsd/Chaser/ImportChaser.h
new file mode 100644
index 0000000..989f84f
--- /dev/null
+++ b/src/MaxUsd/Chaser/ImportChaser.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2021 Apple
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/declarePtrs.h>
+#include <pxr/base/tf/refPtr.h>
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DECLARE_REF_PTRS(MaxUsdImportChaser);
+
+/// \brief base class for plugin chasers which are plugins that run after the
+/// core usdImport out of 3ds Max.
+///
+/// Chasers should save necessary data when constructed. The constructor receives
+/// the Context. Save what you need from it so that you can make use of the information
+/// at the Chaser execution later.
+///
+/// Chasers should not modify the structure of the USD file. Use this to make
+/// small changes or to add attributes, in a non-destructive way, to an imported stage.
+class MaxUsdImportChaser : public TfRefBase
+{
+public:
+    ~MaxUsdImportChaser() override { }
+
+    /// Do custom post-processing that needs to run after the main MaxUsd
+    /// import loop.
+    /// At this point, all data has been authored to the stage (except for
+    /// any custom data that you'll author in this step).
+    virtual bool MaxUSDAPI PostImport();
+};
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Chaser/ImportChaserRegistry.cpp b/src/MaxUsd/Chaser/ImportChaserRegistry.cpp
new file mode 100644
index 0000000..5b7ce92
--- /dev/null
+++ b/src/MaxUsd/Chaser/ImportChaserRegistry.cpp
@@ -0,0 +1,169 @@
+//
+// Copyright 2021 Apple
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "ImportChaserRegistry.h"
+
+#include <MaxUsd/DebugCodes.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+
+#include <pxr/base/tf/instantiateSingleton.h>
+
+#include <map>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+	_tokens,
+
+	(MaxUsd)
+		(ImportChaser)
+);
+// clang-format on
+
+namespace {
+static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->ImportChaser };
+}
+
+namespace {
+struct _HashInfo
+{
+    size_t operator()(const MaxUsdImportChaserRegistry::ChaserInfo& info) const
+    {
+        return info.chaser.Hash();
+    }
+};
+
+struct _EqualInfo
+{
+    bool operator()(
+        const MaxUsdImportChaserRegistry::ChaserInfo& lhs,
+        const MaxUsdImportChaserRegistry::ChaserInfo& rhs) const
+    {
+        return rhs.chaser == lhs.chaser;
+    }
+};
+
+using _ImportChaserRegistry
+    = std::unordered_set<MaxUsdImportChaserRegistry::ChaserInfo, _HashInfo, _EqualInfo>;
+static _ImportChaserRegistry _importChaserRegistry;
+} // namespace
+
+TF_INSTANTIATE_SINGLETON(MaxUsdImportChaserRegistry);
+
+MaxUsdImportChaserRegistry::FactoryContext::FactoryContext(
+    Usd_PrimFlagsPredicate& returnPredicate,
+    MaxUsdReadJobContext&   context,
+    const fs::path&         filename)
+    : context(context)
+    , filename(filename)
+{
+}
+
+MaxUsdReadJobContext& MaxUsdImportChaserRegistry::FactoryContext::GetContext() const
+{
+    return this->context;
+}
+
+UsdStagePtr MaxUsdImportChaserRegistry::FactoryContext::GetStage() const
+{
+    return this->context.GetStage();
+}
+
+const MaxUsd::MaxSceneBuilderOptions& MaxUsdImportChaserRegistry::FactoryContext::GetJobArgs() const
+{
+    return this->context.GetArgs();
+}
+
+const fs::path& MaxUsdImportChaserRegistry::FactoryContext::GetFilename() const
+{
+    return this->filename;
+}
+
+MaxUsdImportChaserRegistry::MaxUsdImportChaserRegistry() { }
+
+MaxUsdImportChaserRegistry::~MaxUsdImportChaserRegistry() { }
+
+bool MaxUsdImportChaserRegistry::RegisterFactory(
+    const std::string& chaser,
+    const std::string& niceName,
+    const std::string& description,
+    FactoryFn          fn,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY).Msg("Registering chaser '%s'.\n", chaser.c_str());
+    TfToken    key(chaser);
+    ChaserInfo newInfo { key, TfToken(niceName), TfToken(description), fn };
+    auto       itFound = _importChaserRegistry.find(newInfo);
+    if (itFound == _importChaserRegistry.end()) {
+        _importChaserRegistry.insert(newInfo);
+        MaxUsd_RegistryHelper::AddUnloader(
+            [key]() {
+                ChaserInfo toErase { key, {}, {}, {} };
+                _importChaserRegistry.erase(toErase);
+            },
+            fromPython);
+    } else {
+        TF_CODING_ERROR("Multiple import chasers named '%s'", chaser.c_str());
+        return false;
+    }
+    return true;
+}
+
+MaxUSDAPI MaxUsdImportChaserRegistry& MaxUsdImportChaserRegistry::GetInstance()
+{
+    return TfSingleton<MaxUsdImportChaserRegistry>::GetInstance();
+}
+
+MaxUSDAPI TfTokenVector MaxUsdImportChaserRegistry::_GetAllRegisteredChasers() const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdImportChaserRegistry>();
+
+    TfTokenVector ret;
+    ret.reserve(_importChaserRegistry.size());
+    for (const auto& p : _importChaserRegistry) {
+        ret.push_back(p.chaser);
+    }
+    return ret;
+}
+
+MaxUSDAPI const MaxUsdImportChaserRegistry::ChaserInfo&
+                MaxUsdImportChaserRegistry::_GetChaserInfo(const TfToken& chaser) const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdImportChaserRegistry>();
+    ChaserInfo              key { chaser, {}, {}, {} };
+    auto                    it = _importChaserRegistry.find(key);
+    static const ChaserInfo _emptyInfo;
+    return it != _importChaserRegistry.end() ? *it : _emptyInfo;
+}
+
+MaxUSDAPI MaxUsdImportChaserRefPtr
+MaxUsdImportChaserRegistry::_Create(const std::string& name, const FactoryContext& context) const
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdImportChaserRegistry>();
+
+    ChaserInfo key { TfToken(name), {}, {}, {} };
+    auto       it = _importChaserRegistry.find(key);
+    return it != _importChaserRegistry.end() ? TfCreateRefPtr(it->chaserFactory(context))
+                                             : TfNullPtr;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Chaser/ImportChaserRegistry.h b/src/MaxUsd/Chaser/ImportChaserRegistry.h
new file mode 100644
index 0000000..508bb30
--- /dev/null
+++ b/src/MaxUsd/Chaser/ImportChaserRegistry.h
@@ -0,0 +1,200 @@
+//
+// Copyright 2021 Apple
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "ImportChaser.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+
+#include <pxr/base/tf/declarePtrs.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/singleton.h>
+#include <pxr/pxr.h>
+
+#include <functional>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DECLARE_WEAK_PTRS(MaxUsdImportChaserRegistry);
+
+/// \class MaxUsdImportChaserRegistry
+/// \brief Registry for chaser plugins.
+class MaxUsdImportChaserRegistry : public TfWeakBase
+{
+public:
+    /// \brief Holds data that can be accessed when constructing a
+    /// MaxUsdImportChaser object.
+    ///
+    /// This class allows plugin code to only know about the context object
+    /// during construction and only need to know about the data it is needs to
+    /// construct.
+    class FactoryContext
+    {
+    public:
+        typedef TfHashMap<SdfPath, INode*, SdfPath::Hash> PrimToNodeMap;
+
+        MaxUSDAPI FactoryContext(
+            Usd_PrimFlagsPredicate& returnPredicate,
+            MaxUsdReadJobContext&   context,
+            const fs::path&         filename);
+
+        /// \brief Returns the imported context.
+        MaxUSDAPI MaxUsdReadJobContext& GetContext() const;
+
+        /// \brief Returns the imported stage.
+        ///
+        /// It is safe for the MaxUsdImportChaser to save this return value and
+        /// use it during it's execution.
+        MaxUSDAPI UsdStagePtr GetStage() const;
+
+        /// \brief Returns the current job args.
+        ///
+        /// It is safe for the MaxUsdImportChaser to save this return value by
+        /// reference and use it during it's execution.
+        MaxUSDAPI const MaxUsd::MaxSceneBuilderOptions& GetJobArgs() const;
+
+        /// \brief Returns the filename of the imported stage
+        ///
+        /// It is safe for the MaxUsdImportChaser to save this return value and
+        /// use it during it's execution.
+        MaxUSDAPI const fs::path& GetFilename() const;
+
+    private:
+        MaxUsdReadJobContext& context;
+        const fs::path&       filename;
+    };
+
+    typedef std::function<MaxUsdImportChaser*(const FactoryContext&)> FactoryFn;
+
+    /// All the information registered for a chaser.
+    struct ChaserInfo
+    {
+        TfToken   chaser;
+        TfToken   niceName;
+        TfToken   description;
+        FactoryFn chaserFactory;
+
+        ChaserInfo() = default;
+
+        ChaserInfo(const TfToken& c, const TfToken& nn, const TfToken& cdsc, FactoryFn cf)
+            : chaser(c)
+            , niceName(nn)
+            , description(cdsc)
+            , chaserFactory(cf)
+        {
+        }
+    };
+
+    /// \brief Register a chaser factory.
+    ///
+    /// Please use the PXR_MAXUSD_DEFINE_CHASER_FACTORY instead of calling
+    /// this directly.
+    /// \param chaser the referenced name in the chaser option list on import
+    /// \param niceName is the name displayed in the import options dialog.
+    /// \param description is displayed as a tooltip in the import options dialog.
+    ///
+    MaxUSDAPI bool RegisterFactory(
+        const std::string& chaser,
+        const std::string& niceName,
+        const std::string& description,
+        FactoryFn          fn,
+        bool               fromPython = false);
+
+    /// Gets the chaser information
+    static const ChaserInfo& GetChaserInfo(const TfToken& chaser)
+    {
+        return GetInstance()._GetChaserInfo(chaser);
+    }
+
+    /// \brief Creates a chaser using the factoring registered to \p name.
+    MaxUSDAPI static MaxUsdImportChaserRefPtr
+    Create(const std::string& name, const FactoryContext& context)
+    {
+        return GetInstance()._Create(name, context);
+    }
+
+    /// \brief Returns the names of all registered chasers.
+    MaxUSDAPI static TfTokenVector GetAllRegisteredChasers()
+    {
+        return GetInstance()._GetAllRegisteredChasers();
+    }
+
+    MaxUSDAPI static MaxUsdImportChaserRegistry& GetInstance();
+
+private:
+    MaxUSDAPI TfTokenVector     _GetAllRegisteredChasers() const;
+    MaxUSDAPI const ChaserInfo& _GetChaserInfo(const TfToken& chaser) const;
+    MaxUSDAPI MaxUsdImportChaserRefPtr
+    _Create(const std::string& name, const FactoryContext& context) const;
+
+    MaxUsdImportChaserRegistry();
+    ~MaxUsdImportChaserRegistry();
+    friend class TfSingleton<MaxUsdImportChaserRegistry>;
+};
+
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_4(name, niceName, description, contextArgName) \
+    static MaxUsdImportChaser* _ChaserFactory_##name(                                          \
+        const MaxUsdImportChaserRegistry::FactoryContext&);                                    \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdImportChaserRegistry, name)                            \
+    {                                                                                          \
+        MaxUsdImportChaserRegistry::GetInstance().RegisterFactory(                             \
+            #name, niceName, description, &_ChaserFactory_##name);                             \
+    }                                                                                          \
+    MaxUsdImportChaser* _ChaserFactory_##name(                                                 \
+        const MaxUsdImportChaserRegistry::FactoryContext& contextArgName)
+
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_3(name, niceName, contextArgName) \
+    PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_4(name, niceName, "", contextArgName)
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_2(name, contextArgName) \
+    PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_3(name, #name, contextArgName)
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_1(name) \
+    PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_2(name, ctx)
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_0()                                        \
+    static_assert(                                                                         \
+        false,                                                                             \
+        "Insufficient number of arguments for macro; expecting "                           \
+        "PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY(<chaserid>, <nice_name>, <description>, " \
+        "<context_arg_name>)");                                                            \
+    PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_1(InvalidChaserDeclaration)
+
+#define FUNC_CHOOSER_IMPORT(_f1, _f2, _f3, _f4, _f5, ...) _f5
+#define FUNC_RECOMPOSER_IMPORT(argsWithParentheses)       FUNC_CHOOSER_IMPORT argsWithParentheses
+#define CHOOSE_FROM_ARG_COUNT_IMPORT(...)           \
+    FUNC_RECOMPOSER_IMPORT(                         \
+        (__VA_ARGS__,                               \
+         PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_4, \
+         PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_3, \
+         PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_2, \
+         PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_1, ))
+#define NO_ARG_EXPANDER_IMPORT()  , , , , PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_0
+#define MACRO_CHOOSER_IMPORT(...) CHOOSE_FROM_ARG_COUNT_IMPORT(NO_ARG_EXPANDER_IMPORT __VA_ARGS__())
+
+/// \brief define a factory for the chaser name.
+/// /param name the chaser id to use when referenced in import options
+/// /param niceName the chaser name displayed in the USD import UI
+///                 (optional; chaser id is used if not provided)
+/// /param description the description of chaser (optional)
+/// /param contextArgName context argument of type MaxUsdImportChaserRegistry::FactoryContext.
+///                       (optional; the argument is named `ctx` if not provided)
+/// The following code block should return a MaxUsdImportChaser*.  There are no guarantees about
+/// the lifetime of contextArgName.
+// PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY_FULL(name, niceName, description, contextArgName)
+#define PXR_MAXUSD_DEFINE_IMPORT_CHASER_FACTORY(...) MACRO_CHOOSER_IMPORT(__VA_ARGS__)(__VA_ARGS__)
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/CurveConversion/CurveConverter.cpp b/src/MaxUsd/CurveConversion/CurveConverter.cpp
new file mode 100644
index 0000000..c1bc21b
--- /dev/null
+++ b/src/MaxUsd/CurveConversion/CurveConverter.cpp
@@ -0,0 +1,199 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CurveConverter.h"
+
+#include <pxr/base/tf/diagnostic.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+enum BasisCurvesReaderCodes
+{
+    InsufficientCurveCount,
+    CannotImportSingleKnotPeriodicCurve,
+    InvalidCurveVertexCount,
+    CurveVertexCountToPointsMismatch
+};
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(
+        InsufficientCurveCount, "Insufficient curve vextex count for type of BasisCurve.");
+    TF_ADD_ENUM_NAME(
+        CannotImportSingleKnotPeriodicCurve,
+        "Periodic curve with vertex count 3 cannot be imported.");
+    TF_ADD_ENUM_NAME(
+        InvalidCurveVertexCount, "Invalid curve vertex count value for type of BasisCurve.");
+    TF_ADD_ENUM_NAME(
+        CurveVertexCountToPointsMismatch,
+        "Total curve vertex count is not equal to number of points defined for BasisCurve.");
+};
+
+namespace MAXUSD_NS_DEF {
+
+size_t CurveConverter::ConvertToSplineShape(
+    const pxr::UsdGeomBasisCurves& basisCurvesPrim,
+    SplineShape&                   maxSpline,
+    pxr::UsdTimeCode               timeCode)
+{
+    if (!basisCurvesPrim.GetPrim().IsValid())
+        return 0;
+
+    pxr::TfToken               curvesType, wrap;
+    pxr::VtArray<pxr::GfVec3f> points;
+    basisCurvesPrim.GetTypeAttr().Get(&curvesType, timeCode);
+    basisCurvesPrim.GetWrapAttr().Get(&wrap, timeCode);
+    basisCurvesPrim.GetPointsAttr().Get(&points, timeCode);
+    pxr::VtArray<int> curveVertexCts;
+    basisCurvesPrim.GetCurveVertexCountsAttr().Get(&curveVertexCts, timeCode);
+
+    size_t vertCount = 0;
+    for (const int& count : curveVertexCts) {
+        vertCount += count;
+    }
+
+    // Check if vertCount is equal to the number of points
+    if (vertCount != points.size()) {
+        TF_ERROR(
+            CurveVertexCountToPointsMismatch,
+            "Total curveVertex count '%s' not equal to amount of points defined '%s'.",
+            std::to_string(vertCount),
+            std::to_string(points.size()));
+        return 0;
+    }
+
+    size_t numberOfSplinesCreated = 0;
+    if (curvesType == pxr::UsdGeomTokens->linear) {
+        int pidx = 0;
+        for (int cidx = 0; cidx < curveVertexCts.size(); cidx++) {
+            auto count = curveVertexCts[cidx];
+            if ((wrap == pxr::UsdGeomTokens->nonperiodic && count < 2)
+                || (wrap == pxr::UsdGeomTokens->periodic && count < 3)) {
+                TF_ERROR(
+                    InsufficientCurveCount,
+                    "Curve vertex count value is insufficient for linear BasisCurve. Skipping "
+                    "import of curve "
+                    "at "
+                    "index '%s' with count '%s'.",
+                    std::to_string(cidx),
+                    std::to_string(count));
+                continue;
+            }
+
+            Spline3D* spline = maxSpline.shape.NewSpline();
+            for (int i = pidx; pidx < i + count; pidx++) {
+                Point3 pt(points[pidx][0], points[pidx][1], points[pidx][2]);
+                spline->AddKnot(SplineKnot(KTYPE_BEZIER, LTYPE_LINE, pt, pt, pt));
+            }
+
+            if (wrap == pxr::UsdGeomTokens->nonperiodic || wrap == pxr::UsdGeomTokens->pinned) {
+                spline->SetClosed(0);
+            } else {
+                spline->SetClosed(1);
+            }
+
+            spline->ComputeBezPoints();
+            numberOfSplinesCreated++;
+        }
+    } else if (curvesType == pxr::UsdGeomTokens->cubic) {
+        int pidx = 0;
+        for (int cidx = 0; cidx < curveVertexCts.size(); cidx++) {
+            auto count = curveVertexCts[cidx];
+            if (((wrap == pxr::UsdGeomTokens->nonperiodic || wrap == pxr::UsdGeomTokens->pinned)
+                 && count < 4)
+                || (wrap == pxr::UsdGeomTokens->periodic && count < 3)) {
+                TF_ERROR(
+                    InsufficientCurveCount,
+                    "Curve vertex count value is insufficient for this type of cubic BasisCurve. "
+                    "Skipping "
+                    "import of "
+                    "curve at "
+                    "index '%s' with count '%s'.",
+                    std::to_string(cidx),
+                    std::to_string(count));
+                continue;
+            }
+
+            if (wrap == pxr::UsdGeomTokens->periodic && count == 3) {
+                TF_WARN(
+                    CannotImportSingleKnotPeriodicCurve,
+                    "Periodic cubic curve with vertex count 3 is valid but cannot be represented "
+                    "in 3dsMax "
+                    "with a single "
+                    "knot as it is in USD. Skipping import of curve at index '%s' with count '%s'.",
+                    std::to_string(cidx),
+                    std::to_string(count));
+                continue;
+            }
+
+            if (((wrap == pxr::UsdGeomTokens->nonperiodic || wrap == pxr::UsdGeomTokens->pinned)
+                 && ((count - 4) % 3 != 0))
+                || (wrap == pxr::UsdGeomTokens->periodic && ((count) % 3 != 0))) {
+                TF_WARN(
+                    InvalidCurveVertexCount,
+                    "Curve vertex count value is invalid for this type of cubic BasisCurve - "
+                    "Import may result "
+                    "in unexpected results. Curve index '%s' with count "
+                    "'%s.",
+                    std::to_string(cidx),
+                    std::to_string(count));
+            }
+
+            Spline3D* spline = maxSpline.shape.NewSpline();
+            for (int i = pidx; pidx < i + count; pidx++) {
+                if (pidx == i) // first point of a curve
+                {
+                    Point3 firstPt(points[pidx][0], points[pidx][1], points[pidx][2]);
+                    Point3 secondPt(points[pidx + 1][0], points[pidx + 1][1], points[pidx + 1][2]);
+                    spline->AddKnot(
+                        SplineKnot(KTYPE_BEZIER, LTYPE_CURVE, firstPt, firstPt, secondPt));
+                } else if (pidx == (i + count - 1)) // last point of a curve
+                {
+                    if ((pidx - i) % 3 == 0) // last point non-periodic
+                    {
+                        Point3 lastPt(points[pidx][0], points[pidx][1], points[pidx][2]);
+                        Point3 beforeLastPt(
+                            points[pidx - 1][0], points[pidx - 1][1], points[pidx - 1][2]);
+                        spline->AddKnot(
+                            SplineKnot(KTYPE_BEZIER, LTYPE_CURVE, lastPt, beforeLastPt, lastPt));
+                    } else if (
+                        (pidx - i) % 3 == 2
+                        && wrap == pxr::UsdGeomTokens->periodic) // last point periodic
+                    {
+                        // in the periodic case, the last point is the first point. Change the
+                        // in-vector to the last defined point
+                        Point3 lastDefinedPoint(points[pidx][0], points[pidx][1], points[pidx][2]);
+                        spline->SetInVec(0, lastDefinedPoint);
+                        spline->SetClosed(1);
+                    }
+                } else if ((pidx - i) % 3 == 0) // control points
+                {
+                    Point3 currPt(points[pidx][0], points[pidx][1], points[pidx][2]);
+                    Point3 prevPt(points[pidx - 1][0], points[pidx - 1][1], points[pidx - 1][2]);
+                    Point3 nextPt(points[pidx + 1][0], points[pidx + 1][1], points[pidx + 1][2]);
+                    spline->AddKnot(SplineKnot(KTYPE_BEZIER, LTYPE_CURVE, currPt, prevPt, nextPt));
+                }
+            }
+
+            spline->ComputeBezPoints();
+            numberOfSplinesCreated++;
+        }
+    }
+    maxSpline.shape.UpdateSels();
+
+    return numberOfSplinesCreated;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/CurveConversion/CurveConverter.h b/src/MaxUsd/CurveConversion/CurveConverter.h
new file mode 100644
index 0000000..1ab87b6
--- /dev/null
+++ b/src/MaxUsd/CurveConversion/CurveConverter.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usdGeom/basisCurves.h>
+
+#include <MaxUsd.h>
+#include <splshape.h>
+
+namespace MAXUSD_NS_DEF {
+
+class MaxUSDAPI CurveConverter
+{
+public:
+    /**
+     * \brief Converts a USD BasisCurves to a 3ds Max SplineShape.
+     * \param curve The USD BasisCurves to convert.
+     * \param maxSpline The 3ds Max SplineShape to convert to.
+     * \param timeCode The USD timeCode at which the conversion happens.
+     * \param cleanMesh Flag to remove vertices that aren't being used from the converted mesh.
+     * \return The number of splines created.
+     */
+    static size_t ConvertToSplineShape(
+        const pxr::UsdGeomBasisCurves& curve,
+        SplineShape&                   maxSpline,
+        pxr::UsdTimeCode               timeCode = pxr::UsdTimeCode::Default());
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/DLLEntry.h b/src/MaxUsd/DLLEntry.h
new file mode 100644
index 0000000..ffe6cda
--- /dev/null
+++ b/src/MaxUsd/DLLEntry.h
@@ -0,0 +1,20 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+extern TCHAR*       GetString(int id);
+extern std::wstring GetStdWString(const int id);
+extern HINSTANCE    hInstance;
diff --git a/src/MaxUsd/DebugCodes.h b/src/MaxUsd/DebugCodes.h
new file mode 100644
index 0000000..543a18a
--- /dev/null
+++ b/src/MaxUsd/DebugCodes.h
@@ -0,0 +1,25 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/base/tf/debug.h>
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEBUG_CODES(PXR_MAXUSD_REGISTRY);
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/DllEntry.cpp b/src/MaxUsd/DllEntry.cpp
new file mode 100644
index 0000000..abe2ff4
--- /dev/null
+++ b/src/MaxUsd/DllEntry.cpp
@@ -0,0 +1,61 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+#include "USDCore.h"
+
+#include <iparamm2.h>
+
+HINSTANCE hInstance;
+int       controlsInit = FALSE;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        MaxSDK::Util::UseLanguagePackLocale();
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+        // DO NOT do any initialization here. Use LibInitialize() instead.
+
+        // FIXME: See above comment.
+        USDCore::initialize();
+    }
+    return (TRUE);
+}
+
+std::wstring GetStdWString(const int id)
+{
+    LPWSTR    pString;
+    const int res = LoadString(hInstance, id, reinterpret_cast<LPWSTR>(&pString), 0);
+    if (res == 0) {
+        return std::wstring();
+    }
+    return std::wstring(pString, res);
+}
+
+TCHAR* GetString(int id)
+{
+    static std::wstring s;
+    s = GetStdWString(id);
+    return const_cast<TCHAR*>(s.data());
+}
\ No newline at end of file
diff --git a/src/MaxUsd/Interfaces/IOLoggingMxsInterface.cpp b/src/MaxUsd/Interfaces/IOLoggingMxsInterface.cpp
new file mode 100644
index 0000000..f7ed54c
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IOLoggingMxsInterface.cpp
@@ -0,0 +1,57 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "IOLoggingMxsInterface.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <maxscript/kernel/exceptions.h>
+
+namespace MAXUSD_NS_DEF {
+
+IOLoggingMxsInterface::IOLoggingMxsInterface(SceneBuilderOptions* options)
+{
+    this->options = options;
+}
+
+void IOLoggingMxsInterface::SetLogLevel(int value)
+{
+    const auto level = MaxUsd::Log::Level(value);
+    // Make sure the value is valid.
+    if (level != MaxUsd::Log::Level::Off && level != MaxUsd::Log::Level::Error
+        && level != MaxUsd::Log::Level::Warn && level != MaxUsd::Log::Level::Info) {
+        WStr errorMsg(
+            L"Incorrect LogLevel value. Accepted values are #off, #error, #warn and #info");
+        throw RuntimeError(errorMsg.data());
+    }
+    options->SetLogLevel(level);
+}
+
+int IOLoggingMxsInterface::GetLogLevel() { return static_cast<int>(options->GetLogLevel()); }
+
+void IOLoggingMxsInterface::SetLogPath(const std::wstring& logPath)
+{
+    if (!MaxUsd::IsValidAbsolutePath(logPath)) {
+        throw RuntimeError(
+            (logPath
+             + std::wstring(L" is not a valid log path. The log path should be an absolute path "
+                            L"with a maximum of 260 characters legal characters."))
+                .c_str());
+    }
+    options->SetLogPath(logPath);
+}
+
+const wchar_t* IOLoggingMxsInterface::GetLogPath() { return options->GetLogPath().c_str(); }
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Interfaces/IOLoggingMxsInterface.h b/src/MaxUsd/Interfaces/IOLoggingMxsInterface.h
new file mode 100644
index 0000000..c491b17
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IOLoggingMxsInterface.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/SceneBuilderOptions.h>
+
+namespace MAXUSD_NS_DEF {
+
+class MaxUSDAPI IOLoggingMxsInterface
+{
+
+public:
+    /**
+     * \brief Constructor
+     * \param options Scene builder options.
+     */
+    IOLoggingMxsInterface(SceneBuilderOptions* options);
+
+    /**
+     * \brief Sets the log level to the held builder options.
+     * \param level The log level to set.
+     */
+    void SetLogLevel(int level);
+
+    /**
+     * \brief Returns the log level from the held options.
+     * \return The log level.
+     */
+    int GetLogLevel();
+
+    /**
+     * \brief Sets the log path to the held builder options.
+     * \param logPath The log path to set.
+     */
+    void SetLogPath(const std::wstring& logPath);
+
+    /**
+     * \brief Returns the log path from the held builder options.
+     * \return The log path.
+     */
+    const wchar_t* GetLogPath();
+
+private:
+    SceneBuilderOptions* options;
+};
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Interfaces/IUSDExportOptions.cpp b/src/MaxUsd/Interfaces/IUSDExportOptions.cpp
new file mode 100644
index 0000000..30afec2
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IUSDExportOptions.cpp
@@ -0,0 +1,650 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// AUTHOR: Autodesk Inc.
+//
+#include "IUSDExportOptions.h"
+
+#include <MaxUsd/Chaser/ExportChaserRegistry.h>
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+#include <maxscript/foundation/MXSDictionaryValue.h>
+#include <maxscript/foundation/numbers.h>
+#include <maxscript/foundation/structs.h>
+#include <maxscript/maxscript.h>
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+namespace MAXUSD_NS_DEF {
+
+// clang-format off
+FPInterfaceDesc IUSDExportOptionsDesc(
+	IUSDExportOptions_INTERFACE_ID, _T("IUSDExportOptions"), 0, NULL, FP_MIXIN,
+	// Functions
+	IUSDExportOptions::fnIdReset, _T("Reset"), "Reset to defaults export options", TYPE_VOID, FP_NO_REDRAW, 0,
+	IUSDExportOptions::fnIdSetChannelPrimvarMappingDefaults, _T("SetChannelPrimvarMappingDefaults"), "Resets channel to primvar mappings.", TYPE_VOID, FP_NO_REDRAW, 0,
+	IUSDExportOptions::fnIdSetChannelPrimvarMapping, _T("SetChannelPrimvarMapping"), "Sets a channel to primvar mapping.", TYPE_VOID, FP_NO_REDRAW, 4,
+		_T("channel"), 0, TYPE_INT,
+		_T("targetPrimvar"), 0, TYPE_VALUE,
+		_T("type"), 0, TYPE_ENUM, IUSDExportOptions::eIdPrimvarType, f_keyArgDefault, MaxUsd::MappedAttributeBuilder::Type::Float3Array,
+		_T("autoExpandType"), 0, TYPE_bool, f_keyArgDefault, FALSE,
+	IUSDExportOptions::fnIdGetChannelPrimvarType, _T("GetChannelPrimvarType"), "Returns the type of the primvar associated with this channel.", TYPE_ENUM, IUSDExportOptions::eIdPrimvarType, FP_NO_REDRAW, 1,
+		_T("channel"), 0, TYPE_INT,
+	IUSDExportOptions::fnIdGetChannelPrimvarName, _T("GetChannelPrimvarName"), "Returns the name of the primvar associated with this channel.", TYPE_STRING, FP_NO_REDRAW, 1,
+		_T("channel"), 0, TYPE_INT,
+	IUSDExportOptions::fnIdGetChannelPrimvarAutoExpandType, _T("GetChannelPrimvarAutoExpandType"), "Returns whether the type should auto expand if need.", TYPE_BOOL, FP_NO_REDRAW, 1,
+		_T("channel"), 0, TYPE_INT,
+	IUSDExportOptions::fnIdGetAvailableMaterialConversions, _T("AvailableMaterialTargets"), "Returns an array of all available USD material target types", TYPE_TSTR_TAB_BV, FP_NO_REDRAW, 0,
+	IUSDExportOptions::fnIdGetAvailableChasers, _T("AvailableChasers"), "Returns an array of all available export chasers", TYPE_TSTR_TAB_BV, FP_NO_REDRAW, 0,
+	IUSDExportOptions::fidSerialize, _T("Serialize"), "Serialize the options to a JSON formatted string.", TYPE_STRING, FP_NO_REDRAW, 0,
+	// Properties
+	properties,
+	IUSDExportOptions::fnIdGetTranslateMeshes, IUSDExportOptions::fnIdSetTranslateMeshes, _T("Meshes"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateShapes, IUSDExportOptions::fnIdSetTranslateShapes, _T("Shapes"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateLights, IUSDExportOptions::fnIdSetTranslateLights, _T("Lights"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateCameras, IUSDExportOptions::fnIdSetTranslateCameras, _T("Cameras"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateSkin, IUSDExportOptions::fnIdSetTranslateSkin, _T("Skin"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateMorpher, IUSDExportOptions::fnIdSetTranslateMorpher, _T("Morpher"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateMaterials, IUSDExportOptions::fnIdSetTranslateMaterials, _T("Materials"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetShadingMode, IUSDExportOptions::fnIdSetShadingMode, _T("ShadingMode"), 0, TYPE_STRING,
+	IUSDExportOptions::fnIdGetAllMaterialConversions, IUSDExportOptions::fnIdSetAllMaterialConversions, _T("AllMaterialTargets"), 0, TYPE_TSTR_TAB_BV,
+	IUSDExportOptions::fnIdGetUsdStagesAsReferences, IUSDExportOptions::fnIdSetUsdStagesAsReferences, _T("UsdStagesAsReferences"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetTranslateHidden, IUSDExportOptions::fnIdSetTranslateHidden, _T("HiddenObjects"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetUseUSDVisibility, IUSDExportOptions::fnIdSetUseUSDVisibility, _T("UseUSDVisibility"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetAllowNestedGprims, IUSDExportOptions::fnIdSetAllowNestedGprims, _T("AllowNestedGprims"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetFileFormat, IUSDExportOptions::fnIdSetFileFormat, _T("FileFormat"), 0, TYPE_ENUM, IUSDExportOptions::eIdFileFormat,
+	IUSDExportOptions::fnIdGetNormals, IUSDExportOptions::fnIdSetNormals, _T("Normals"), 0, TYPE_ENUM, IUSDExportOptions::eIdNormalsMode,
+	IUSDExportOptions::fnIdGetMeshFormat, IUSDExportOptions::fnIdSetMeshFormat, _T("MeshFormat"), 0, TYPE_ENUM, IUSDExportOptions::eIdMeshFormat,
+	IUSDExportOptions::fnIdGetTimeMode, IUSDExportOptions::fnIdSetTimeMode, _T("TimeMode"), FP_NO_REDRAW, TYPE_ENUM, IUSDExportOptions::eIdTimeMode,
+	IUSDExportOptions::fid_GetStartFrame, IUSDExportOptions::fid_SetStartFrame, _T("StartFrame"), FP_NO_REDRAW, TYPE_DOUBLE,
+	IUSDExportOptions::fid_GetEndFrame, IUSDExportOptions::fid_SetEndFrame, _T("EndFrame"), FP_NO_REDRAW, TYPE_DOUBLE,
+	IUSDExportOptions::fid_GetSamplesPerFrame, IUSDExportOptions::fid_SetSamplesPerFrame, _T("SamplesPerFrame"), FP_NO_REDRAW, TYPE_DOUBLE,
+	IUSDExportOptions::fnIdGetUpAxis, IUSDExportOptions::fnIdSetUpAxis, _T("UpAxis"), 0, TYPE_ENUM, IUSDExportOptions::eIdUpAxis,
+	IUSDExportOptions::fnIdGetBakeObjectOffsetTransform, IUSDExportOptions::fnIdSetBakeObjectOffsetTransform, _T("BakeObjectOffsetTransform"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetPreserveEdgeOrientation, IUSDExportOptions::fnIdSetPreserveEdgeOrientation, _T("PreserveEdgeOrientation"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetRootPrimPath, IUSDExportOptions::fnIdSetRootPrimPath, _T("RootPrimPath"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDExportOptions::fnIdGetBonesPrimName, IUSDExportOptions::fnIdSetBonesPrimName, _T("BonesPrimName"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDExportOptions::fnIdGetAnimationsPrimName, IUSDExportOptions::fnIdSetAnimationsPrimName, _T("AnimationsPrimName"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDExportOptions::fnIdGetLogPath, IUSDExportOptions::fnIdSetLogPath, _T("LogPath"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDExportOptions::fnIdGetLogLevel, IUSDExportOptions::fnIdSetLogLevel, _T("LogLevel"), FP_NO_REDRAW, TYPE_ENUM, IUSDExportOptions::eIdLogLevel,
+	IUSDExportOptions::fnIdGetOpenInUsdview, IUSDExportOptions::fnIdSetOpenInUsdview, _T("OpenInUsdview"), 0, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetChaserNames, IUSDExportOptions::fnIdSetChaserNames, _T("ChaserNames"), 0, TYPE_TSTR_TAB_BV,
+	IUSDExportOptions::fnIdGetAllChaserArgs, IUSDExportOptions::fnIdSetAllChaserArgs, _T("AllChaserArgs"), 0, TYPE_VALUE,
+	IUSDExportOptions::fnIdGetContextNames, IUSDExportOptions::fnIdSetContextNames, _T("ContextNames"), 0, TYPE_TSTR_TAB_BV,
+#ifdef IS_MAX2024_OR_GREATER
+	IUSDExportOptions::fnIdGetMtlSwitcherExportStyle, IUSDExportOptions::fnIdSetMtlSwitcherExportStyle, _T("MtlSwitcherExportStyle"), FP_NO_REDRAW, TYPE_ENUM, IUSDExportOptions::eIdMtlSwitcherExportStyle,
+#endif
+	IUSDExportOptions::fnIdGetUseProgressBar, IUSDExportOptions::fnIdSetUseProgressBar, _T("UseProgressBar"), 0, TYPE_BOOL, 
+	IUSDExportOptions::fnIdGetMaterialLayerPath, IUSDExportOptions::fnIdSetMaterialLayerPath, _T("MaterialLayerPath"), FP_NO_REDRAW, TYPE_STRING, 
+	IUSDExportOptions::fnIdGetMaterialPrimPath,	IUSDExportOptions::fnIdSetMaterialPrimPath, _T("MaterialPrimPath"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDExportOptions::fnIdGetUseSeparateMaterialLayer, IUSDExportOptions::fnIdSetUseSeparateMaterialLayer, _T("UseSeparateMaterialLayer"), FP_NO_REDRAW, TYPE_BOOL,
+	IUSDExportOptions::fnIdGetUseLastResortUSDPreviewSurfaceWriter, IUSDExportOptions::fnIdSetUseLastResortUSDPreviewSurfaceWriter, _T("UseLastResortUSDPreviewSurfaceWriter"), FP_NO_REDRAW, TYPE_BOOL,
+	// Enums
+	enums,
+	IUSDExportOptions::eIdFileFormat, 2,
+		_T("ascii"), USDSceneBuilderOptions::FileFormat::ASCII,
+		_T("binary"), USDSceneBuilderOptions::FileFormat::Binary,
+	IUSDExportOptions::eIdUpAxis, 2,
+		_T("y"), USDSceneBuilderOptions::UpAxis::Y,
+		_T("z"), USDSceneBuilderOptions::UpAxis::Z,
+	IUSDExportOptions::eIdPrimvarType, 6,
+		_T("texCoord2fArray"), MaxUsd::MappedAttributeBuilder::Type::TexCoord2fArray,
+		_T("texCoord3fArray"), MaxUsd::MappedAttributeBuilder::Type::TexCoord3fArray,
+		_T("floatArray"), MaxUsd::MappedAttributeBuilder::Type::FloatArray,
+		_T("float2Array"), MaxUsd::MappedAttributeBuilder::Type::Float2Array,
+		_T("float3Array"), MaxUsd::MappedAttributeBuilder::Type::Float3Array,
+		_T("color3fArray"), MaxUsd::MappedAttributeBuilder::Type::Color3fArray,
+	IUSDExportOptions::eIdLogLevel, 4,
+		_T("off"), MaxUsd::Log::Level::Off,
+		_T("info"), MaxUsd::Log::Level::Info,
+		_T("warn"), MaxUsd::Log::Level::Warn,
+		_T("error"), MaxUsd::Log::Level::Error,
+	IUSDExportOptions::eIdNormalsMode, 3,
+		_T("none"), MaxMeshConversionOptions::NormalsMode::None,
+		_T("asAttribute"), MaxMeshConversionOptions::NormalsMode::AsAttribute,
+		_T("asPrimvar"), MaxMeshConversionOptions::NormalsMode::AsPrimvar,
+	IUSDExportOptions::eIdMeshFormat, 3,
+		_T("fromScene"), MaxMeshConversionOptions::MeshFormat::FromScene,
+		_T("polyMesh"), MaxMeshConversionOptions::MeshFormat::PolyMesh,
+		_T("triMesh"), MaxMeshConversionOptions::MeshFormat::TriMesh,
+	IUSDExportOptions::eIdTimeMode, 4, 
+		_T("current"), USDSceneBuilderOptions::TimeMode::CurrentFrame,
+		_T("explicit"), USDSceneBuilderOptions::TimeMode::ExplicitFrame,
+		_T("animationRange"), USDSceneBuilderOptions::TimeMode::AnimationRange,
+		_T("frameRange"), USDSceneBuilderOptions::TimeMode::FrameRange,
+#ifdef IS_MAX2024_OR_GREATER
+	IUSDExportOptions::eIdMtlSwitcherExportStyle, 2, 
+		_T("asVariantSets"), USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets,
+		_T("activeMaterial"), USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly,
+#endif
+	p_end
+);
+// clang-format on
+
+IUSDExportOptions::IUSDExportOptions() { SetDefaults(); }
+
+IUSDExportOptions::IUSDExportOptions(const IUSDExportOptions& options) { SetOptions(options); }
+
+IUSDExportOptions::IUSDExportOptions(const USDSceneBuilderOptions& options) { SetOptions(options); }
+
+const IUSDExportOptions& IUSDExportOptions::operator=(const IUSDExportOptions& options)
+{
+    SetOptions(options);
+    return *this;
+}
+
+void IUSDExportOptions::SetFileFormat(int saveFormat)
+{
+    const auto format = USDSceneBuilderOptions::FileFormat(saveFormat);
+    if (format != FileFormat::ASCII && format != FileFormat::Binary) {
+        WStr errorMsg(L"Incorrect FileFormat value. Accepted values are #ascii and #binary.");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    USDSceneBuilderOptions::SetFileFormat(format);
+}
+
+void IUSDExportOptions::SetUpAxis(int upAxis)
+{
+    const auto axis = USDSceneBuilderOptions::UpAxis(upAxis);
+    if (axis != UpAxis::Y && axis != UpAxis::Z) {
+        WStr errorMsg(L"Incorrect UpAxis value. Accepted values are #y and #z.");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    USDSceneBuilderOptions::SetUpAxis(axis);
+}
+
+void IUSDExportOptions::SetNormalsMode(int normalsMode)
+{
+    const auto normals = MaxMeshConversionOptions::NormalsMode(normalsMode);
+    if (normals != MaxMeshConversionOptions::NormalsMode::AsAttribute
+        && normals != MaxMeshConversionOptions::NormalsMode::AsPrimvar
+        && normals != MaxMeshConversionOptions::NormalsMode::None) {
+        WStr errorMsg(
+            L"Incorrect Normals value. Accepted values are #asAttribute, #asPrimvar and #none.");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    USDSceneBuilderOptions::SetNormalsMode(normals);
+}
+
+void IUSDExportOptions::SetMeshFormat(int meshFormatValue)
+{
+    const auto meshFormat = MaxMeshConversionOptions::MeshFormat(meshFormatValue);
+    if (meshFormat != MaxMeshConversionOptions::MeshFormat::FromScene
+        && meshFormat != MaxMeshConversionOptions::MeshFormat::PolyMesh
+        && meshFormat != MaxMeshConversionOptions::MeshFormat::TriMesh) {
+        WStr errorMsg(
+            L"Incorrect MeshFormat value. Accepted values are #fromScene, #polyMesh and #triMesh.");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    USDSceneBuilderOptions::SetMeshFormat(meshFormat);
+}
+
+void IUSDExportOptions::SetTimeMode(int timeMode)
+{
+    const auto mode = static_cast<TimeMode>(timeMode);
+    // Validation.
+    if (mode != TimeMode::CurrentFrame && mode != TimeMode::ExplicitFrame
+        && mode != TimeMode::AnimationRange && mode != TimeMode::FrameRange) {
+        WStr errorMsg(L"Incorrect TimeMode value. Accepted values are #current, #explicit, "
+                      L"#animationRange or #frameRange.");
+        throw RuntimeError(errorMsg.data());
+    }
+    USDSceneBuilderOptions::SetTimeMode(mode);
+}
+
+void IUSDExportOptions::SetSamplesPerFrame(double samplesPerFrame)
+{
+    if (samplesPerFrame < USDSceneBuilderOptions::MIN_SAMPLES_PER_FRAME
+        || samplesPerFrame > USDSceneBuilderOptions::MAX_SAMPLES_PER_FRAME) {
+        WStr errorMsg = WStr(L"The given SamplesPerFrame is outside of the allowed range [")
+            + std::to_wstring(MIN_SAMPLES_PER_FRAME).c_str() + WStr(L",")
+            + std::to_wstring(MAX_SAMPLES_PER_FRAME).c_str() + WStr(L"].");
+        throw RuntimeError(errorMsg.data());
+    }
+    USDSceneBuilderOptions::SetSamplesPerFrame(samplesPerFrame);
+}
+
+bool IUSDExportOptions::GetBakeObjectOffsetTransform() const
+{
+    return GetMeshConversionOptions().GetBakeObjectOffsetTransform();
+}
+
+void IUSDExportOptions::SetBakeObjectOffsetTransform(bool value)
+{
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetBakeObjectOffsetTransform(value);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+bool IUSDExportOptions::GetPreserveEdgeOrientation() const
+{
+    return GetMeshConversionOptions().GetPreserveEdgeOrientation();
+}
+
+void IUSDExportOptions::SetPreserveEdgeOrientation(bool preserve)
+{
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetPreserveEdgeOrientation(preserve);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+void IUSDExportOptions::SetChannelPrimvarMappingDefaults()
+{
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetDefaultChannelPrimvarMappings();
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+void IUSDExportOptions::SetChannelPrimvarMapping(
+    int    channel,
+    Value* nameValue,
+    int    type,
+    bool   autoExpandType)
+{
+    // Validation.
+    if (!MaxUsd::IsValidChannel(channel)) {
+        const auto errorMsg
+            = std::to_wstring(channel)
+            + std::wstring(
+                  L" is not a valid map channel. Valid channels are from -2 to 99 inclusively.");
+        throw RuntimeError(errorMsg.c_str());
+    }
+
+    const MaxUsd::MappedAttributeBuilder::Type attributeType
+        = MaxUsd::MappedAttributeBuilder::Type(type);
+    if (attributeType != MappedAttributeBuilder::Type::TexCoord2fArray
+        && attributeType != MappedAttributeBuilder::Type::TexCoord3fArray
+        && attributeType != MappedAttributeBuilder::Type::FloatArray
+        && attributeType != MappedAttributeBuilder::Type::Float2Array
+        && attributeType != MappedAttributeBuilder::Type::Float3Array
+        && attributeType != MappedAttributeBuilder::Type::Color3fArray) {
+        WStr errorMsg(L"Unsupported primvar type. Accepted values are #TexCoord2fArray, "
+                      L"#TexCoord3fArray, #FloatArray, "
+                      L"#Float2Array, #Float3Array and #Color3fArray.");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    // If "undefined" was passed as name this means we do not want to export this channel.
+    // Internally we will keep track of this with an empty string.
+    std::string primvarName;
+    if (nameValue != &undefined) {
+        // Make sure the given primvar name is supported...
+        const wchar_t*    nameWstring = nameValue->to_string();
+        const std::string primvarNameStr = MaxUsd::MaxStringToUsdString(nameWstring);
+        primvarName = pxr::TfMakeValidIdentifier(primvarNameStr);
+        if (wcscmp(nameWstring, MaxUsd::UsdStringToMaxString(primvarName).data()) != 0) {
+            const auto errorMsg = nameWstring
+                + std::wstring(L" is not a valid primvar name. The name must start with a letter "
+                               L"or underscore, and "
+                               L"must contain only letters, underscores, and numerals..");
+            throw RuntimeError(errorMsg.c_str());
+        }
+    }
+
+    const MaxUsd::MappedAttributeBuilder::Config config(
+        pxr::TfToken(primvarName), attributeType, autoExpandType);
+
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetChannelPrimvarConfig(channel, config);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+const MaxUsd::MappedAttributeBuilder::Config IUSDExportOptions::GetValidPrimvarConfig(int channel)
+{
+    // Validation.
+    if (!MaxUsd::IsValidChannel(channel)) {
+        const auto errorMsg
+            = std::to_wstring(channel)
+            + std::wstring(
+                  L" is not a valid map channel. Valid channels are from -2 to 99 inclusively.");
+        throw RuntimeError(errorMsg.c_str());
+    }
+    return GetMeshConversionOptions().GetChannelPrimvarConfig(channel);
+}
+
+Value* IUSDExportOptions::GetChannelPrimvarName(int channel)
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    const WStr  name = MaxUsd::UsdStringToMaxString(config.GetPrimvarName());
+    if (name.Length() == 0) {
+        return &undefined;
+    }
+    // Garbage collected string (inherits from Collectable via Value)
+    return new String(name);
+}
+
+int IUSDExportOptions::GetChannelPrimvarType(int channel)
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    return static_cast<int>(config.GetPrimvarType());
+}
+
+int IUSDExportOptions::GetChannelPrimvarAutoExpandType(int channel)
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    return static_cast<int>(config.IsAutoExpandType());
+}
+
+const wchar_t* IUSDExportOptions::GetRootPrimPath() const
+{
+    return UsdStringToMaxString(USDSceneBuilderOptions::GetRootPrimPath().GetString()).data();
+}
+
+const wchar_t* IUSDExportOptions::GetBonesPrimName() const
+{
+    return UsdStringToMaxString(USDSceneBuilderOptions::GetBonesPrimName().GetString()).data();
+}
+
+void IUSDExportOptions::SetBonesPrimName(const wchar_t* bonesPrim)
+{
+    const std::string bonesPrimString = MaxStringToUsdString(bonesPrim);
+    if (!pxr::TfIsValidIdentifier(bonesPrimString)) {
+        const auto errorMsg = std::wstring(L"The bones prim name could not be set. This is not a "
+                                           L"valid USD prim identifier : ")
+                                  .append(bonesPrim);
+        throw RuntimeError(errorMsg.c_str());
+    }
+    USDSceneBuilderOptions::SetBonesPrimName(pxr::TfToken(bonesPrimString));
+}
+
+const wchar_t* IUSDExportOptions::GetAnimationsPrimName() const
+{
+    return UsdStringToMaxString(USDSceneBuilderOptions::GetAnimationsPrimName().GetString()).data();
+}
+
+void IUSDExportOptions::SetAnimationsPrimName(const wchar_t* animationsPrim)
+{
+    const std::string animationsPrimString = MaxStringToUsdString(animationsPrim);
+    if (!pxr::TfIsValidIdentifier(animationsPrimString)) {
+        const auto errorMsg = std::wstring(L"The Animations prim name could not be set. This is "
+                                           L"not a valid USD prim identifier : ")
+                                  .append(animationsPrim);
+        throw RuntimeError(errorMsg.c_str());
+    }
+    USDSceneBuilderOptions::SetAnimationsPrimName(pxr::TfToken(animationsPrimString));
+}
+
+void IUSDExportOptions::SetRootPrimPath(const wchar_t* rootPath)
+{
+    const std::wstring rootPathString = rootPath;
+    const auto path = pxr::SdfPath(MaxUsd::MaxStringToUsdString(rootPathString.c_str()).c_str());
+    if (!rootPathString.empty() && (!path.IsAbsolutePath() || !path.IsAbsoluteRootOrPrimPath())) {
+        const auto errorMsg = std::wstring(L"The root prim path could not be set. This is not a "
+                                           L"valid absolute USD prim path : ")
+                                  .append(rootPath);
+        throw RuntimeError(errorMsg.c_str());
+    }
+    USDSceneBuilderOptions::SetRootPrimPath(path);
+}
+
+#ifdef IS_MAX2024_OR_GREATER
+void IUSDExportOptions::SetMtlSwitcherExportStyle(int exportStyle)
+{
+    const auto style = USDSceneBuilderOptions::MtlSwitcherExportStyle(exportStyle);
+    // Validation.
+    if (style != MtlSwitcherExportStyle::AsVariantSets
+        && style != MtlSwitcherExportStyle::ActiveMaterialOnly) {
+        WStr errorMsg(L"Incorrect MtlSwitcherExportStyle value. Accepted values are #asVariantSets "
+                      L"or #activeMaterial.");
+        throw RuntimeError(errorMsg.data());
+    }
+    USDSceneBuilderOptions::SetMtlSwitcherExportStyle(style);
+}
+#endif
+
+FPInterfaceDesc* IUSDExportOptions::GetDesc() { return &IUSDExportOptionsDesc; }
+
+void IUSDExportOptions::SetShadingMode(const wchar_t* shadingMode)
+{
+    BaseClass::SetShadingMode(pxr::TfToken(MaxUsd::MaxStringToUsdString(shadingMode)));
+}
+
+const wchar_t* IUSDExportOptions::GetShadingMode() const
+{
+    return (MaxUsd::UsdStringToMaxString(BaseClass::GetShadingMode())).data();
+}
+
+Tab<TSTR*> IUSDExportOptions::GetAllMaterialTargets() const
+{
+    Tab<TSTR*> materialArray;
+    for (const auto& material : GetAllMaterialConversions()) {
+        TSTR* name = new TSTR(MaxUsd::UsdStringToMaxString(material.GetString()).data());
+        materialArray.Append(1, &name);
+    }
+    return materialArray;
+}
+
+void IUSDExportOptions::SetAllMaterialTargets(const Tab<TSTR*>& materialArray)
+{
+    std::set<pxr::TfToken> materialSet;
+    pxr::TfTokenVector     availableConversions
+        = pxr::MaxUsdShadingModeRegistry::ListMaterialConversions();
+    for (int i = 0; i < materialArray.Count(); ++i) {
+        auto elementToInsert = pxr::TfToken(MaxUsd::MaxStringToUsdString(materialArray[i]->data()));
+        if (std::find(availableConversions.begin(), availableConversions.end(), elementToInsert)
+            != availableConversions.end()) {
+            materialSet.insert(elementToInsert);
+        } else {
+            const auto errorMsg = materialArray[i]->data()
+                + std::wstring(L" is not a valid material target type. See available types with "
+                               L"'AvailalbleMaterialTargets'.");
+            throw RuntimeError(errorMsg.c_str());
+        }
+    }
+    SetAllMaterialConversions(materialSet);
+}
+
+Tab<TSTR*> IUSDExportOptions::GetAvailableMaterialTargets() const
+{
+    Tab<TSTR*>         materialArray;
+    pxr::TfTokenVector availableConversions
+        = pxr::MaxUsdShadingModeRegistry::ListMaterialConversions();
+    for (const auto& material : availableConversions) {
+        auto const& info = pxr::MaxUsdShadingModeRegistry::GetMaterialConversionInfo(material);
+        if (info.hasExporter) {
+            auto mxsCopy = new TSTR(UsdStringToMaxString(material.GetString()));
+            materialArray.Append(1, &mxsCopy);
+        }
+    }
+    return materialArray;
+}
+
+Tab<TSTR*> IUSDExportOptions::GetAvailableChasers() const
+{
+    Tab<TSTR*> chaserArray;
+    auto       chasers = pxr::MaxUsdExportChaserRegistry::GetAllRegisteredChasers();
+    for (const auto& chaser : chasers) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(chaser.GetString()));
+        chaserArray.Append(1, &mxsCopy);
+    }
+    return chaserArray;
+}
+
+Tab<TSTR*> IUSDExportOptions::GetChaserNamesMxs() const
+{
+    Tab<TSTR*> chaserArray;
+    for (const auto& chaserName : USDSceneBuilderOptions::GetChaserNames()) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(chaserName));
+        chaserArray.Append(1, &mxsCopy);
+    }
+    return chaserArray;
+}
+
+void IUSDExportOptions::SetChaserNamesMxs(const Tab<TSTR*>& chaserArray)
+{
+    std::vector<std::string> chaserNames;
+    for (int i = 0; i < chaserArray.Count(); ++i) {
+        chaserNames.push_back(MaxUsd::MaxStringToUsdString(chaserArray[i]->data()));
+    }
+    SetChaserNames(chaserNames);
+}
+
+void IUSDExportOptions::SetAllChaserArgs(Value* chaserArgsValue)
+{
+    auto allChaserArgs = USDSceneBuilderOptions::GetAllChaserArgs();
+
+    if (is_dictionary(chaserArgsValue)) {
+        MXSDictionaryValue* dict = dynamic_cast<MXSDictionaryValue*>(chaserArgsValue);
+        Array*              chasers = dict->getKeys();
+
+        for (int i = 0; i < chasers->size; ++i) {
+            Value* chaserName = (*chasers)[i];
+            Value* chaserArgs = dict->get(chaserName);
+            if (!is_dictionary(chaserArgs)) {
+                throw RuntimeError(
+                    L"Badly formed dictionary entry. Expecting Dictionary to for arguments.");
+            }
+
+            ChaserArgs          args;
+            MXSDictionaryValue* dictArgs = dynamic_cast<MXSDictionaryValue*>(chaserArgs);
+            Array*              argKeys = dictArgs->getKeys();
+
+            for (int j = 0; j < argKeys->size; ++j) {
+                Value* argKey = (*argKeys)[j];
+                Value* argValue = dictArgs->get(argKey);
+
+                args[MaxUsd::MaxStringToUsdString(argKey->to_string())]
+                    = MaxUsd::MaxStringToUsdString(argValue->to_string());
+            }
+            allChaserArgs[MaxStringToUsdString(chaserName->to_string())] = args;
+        }
+        USDSceneBuilderOptions::SetAllChaserArgs(allChaserArgs);
+    } else if (is_array(chaserArgsValue)) {
+        Array* argsArray = dynamic_cast<Array*>(chaserArgsValue);
+        if (argsArray->size % 3) {
+            throw RuntimeError(L"Badly formed Array. Expecting 3 elements per argument entry "
+                               L"(<chaser>, <key>, <value>).");
+        }
+        for (int i = 0; i < argsArray->size; i = i + 3) {
+            Value* chaserName = (*argsArray)[i];
+            Value* argKey = (*argsArray)[i + 1];
+            Value* argValue = (*argsArray)[i + 2];
+
+            ChaserArgs& chaserArgs = allChaserArgs[MaxStringToUsdString(chaserName->to_string())];
+            chaserArgs[MaxUsd::MaxStringToUsdString(argKey->to_string())]
+                = MaxUsd::MaxStringToUsdString(argValue->to_string());
+        }
+        USDSceneBuilderOptions::SetAllChaserArgs(allChaserArgs);
+    } else {
+        throw RuntimeError(
+            L"Invalid parameter type provided. Expecting a maxscript Dictionary or Array.");
+    }
+}
+
+Value* IUSDExportOptions::GetAllChaserArgs()
+{
+    if (allChaserArgsMxsHolder.get_value() == nullptr) {
+        allChaserArgsMxsHolder.set_value(new MXSDictionaryValue(MXSDictionaryValue::key_string));
+    }
+
+    ScopedMaxScriptEvaluationContext scopedMaxScriptEvaluationContext;
+    MAXScript_TLS*                   _tls = scopedMaxScriptEvaluationContext.Get_TLS();
+    five_typed_value_locals_tls(
+        MXSDictionaryValue * allChaserArgsDict,
+        MXSDictionaryValue * argsDict,
+        Value * chaserName,
+        Value * argKey,
+        Value * argValue)
+
+        vl.allChaserArgsDict
+        = dynamic_cast<MXSDictionaryValue*>(allChaserArgsMxsHolder.get_value());
+    // remove the previous args if any
+    vl.allChaserArgsDict->free();
+    for (const auto& chaserArgs : USDSceneBuilderOptions::GetAllChaserArgs()) {
+        vl.argsDict = new MXSDictionaryValue(MXSDictionaryValue::key_string);
+        vl.chaserName = new String(MaxUsd::UsdStringToMaxString(chaserArgs.first).data());
+        for (const auto& chaserArgsValue : chaserArgs.second) {
+            vl.argKey = new String(MaxUsd::UsdStringToMaxString(chaserArgsValue.first).data());
+            vl.argValue = new String(MaxUsd::UsdStringToMaxString(chaserArgsValue.second).data());
+            vl.argsDict->put(vl.argKey, vl.argValue);
+        }
+        vl.allChaserArgsDict->put(vl.chaserName, vl.argsDict);
+    }
+    return allChaserArgsMxsHolder.get_value();
+}
+
+Tab<TSTR*> IUSDExportOptions::GetContextNamesMxs() const
+{
+    Tab<TSTR*> contextArray;
+    for (const auto& contextName : USDSceneBuilderOptions::GetContextNames()) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(contextName));
+        contextArray.Append(1, &mxsCopy);
+    }
+    return contextArray;
+}
+
+void IUSDExportOptions::SetContextNamesMxs(const Tab<TSTR*>& contextArray)
+{
+    std::set<std::string> contextNames;
+    for (int i = 0; i < contextArray.Count(); ++i) {
+        contextNames.insert(MaxUsd::MaxStringToUsdString(contextArray[i]->data()));
+    }
+    SetContextNames(contextNames);
+}
+
+void IUSDExportOptions::SetMaterialLayerPath(const wchar_t* mtlPath)
+{
+    const auto& mtlPathStr = MaxUsd::MaxStringToUsdString(mtlPath);
+    if (!MaxUsd::HasUnicodeCharacter(mtlPathStr)) {
+        BaseClass::SetMaterialLayerPath(mtlPathStr);
+    } else {
+        throw RuntimeError(L"The path used is not valid. USD does not support unicode characters "
+                           L"in its file paths.");
+    }
+}
+
+const wchar_t* IUSDExportOptions::GetMaterialLayerPath() const
+{
+    return MaxUsd::UsdStringToMaxString(BaseClass::GetMaterialLayerPath()).data();
+}
+
+void IUSDExportOptions::SetMaterialPrimPath(const wchar_t* mtlPath)
+{
+    auto        str = MaxUsd::MaxStringToUsdString(mtlPath);
+    std::string err;
+    if (pxr::SdfPath::IsValidPathString(str, &err)) {
+        pxr::SdfPath primPath(str);
+        if (primPath.IsAbsoluteRootOrPrimPath()) {
+            BaseClass::SetMaterialPrimPath(primPath);
+        } else {
+            throw RuntimeError(L"The path used is not valid.");
+        }
+    } else {
+        err = "The path used is not valid : " + err;
+        throw RuntimeError(UsdStringToMaxString(err));
+    }
+}
+
+const wchar_t* IUSDExportOptions::GetMaterialPrimPath() const
+{
+    return MaxUsd::UsdStringToMaxString(BaseClass::GetMaterialPrimPath().GetAsString()).data();
+}
+
+const MCHAR* IUSDExportOptions::Serialize() const
+{
+    auto        jsonString = OptionUtils::SerializeOptionsToJson(*this);
+    static WStr maxString;
+    maxString = UsdStringToMaxString(jsonString);
+    return maxString.data();
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Interfaces/IUSDExportOptions.h b/src/MaxUsd/Interfaces/IUSDExportOptions.h
new file mode 100644
index 0000000..471950d
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IUSDExportOptions.h
@@ -0,0 +1,473 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include "IOLoggingMxsInterface.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/DllEntry.h>
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/Utilities/Logging.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <maxscript/foundation/ValueHolderMember.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief USD Scene Build configuration options.
+ */
+
+#define IUSDExportOptions_INTERFACE_ID Interface_ID(0x21e7408, 0x14c075a2)
+
+class MaxUSDAPI IUSDExportOptions
+    : public FPMixinInterface
+    , public USDSceneBuilderOptions
+{
+
+public:
+    typedef USDSceneBuilderOptions BaseClass;
+
+    // Inherited methods
+    FPInterfaceDesc* GetDesc();
+    const TCHAR*     GetName() { return _T("IUSDExportOptions"); }
+    BaseInterface*   AcquireInterface() { return this; }
+    void             ReleaseInterface() { delete this; }
+
+    /**
+     * \brief Constructor.
+     */
+    IUSDExportOptions();
+
+    /**
+     * \brief Copy constructor.
+     * \param Options to copy from.
+     */
+    IUSDExportOptions(const IUSDExportOptions& options);
+
+    /**
+     * Copy constructor from base class.
+     * \param options to copy from.
+     */
+    explicit IUSDExportOptions(const USDSceneBuilderOptions& options);
+
+    /**
+     * \brief Assignement operator
+     * \param Options to assign
+     * \return The assigned options object.
+     */
+    const IUSDExportOptions& operator=(const IUSDExportOptions& options);
+
+    /**
+     * \brief Set the internal format of the USD file to export.
+     * \param saveFormat Format of the file to export.
+     */
+    void SetFileFormat(int format);
+
+    /**
+     * \brief Set the "up axis" of the USD Stage produced from the translation of the 3ds Max content.
+     * \param upAxis Up axis of the USD Stage produced from the translation of the 3ds Max content.
+     */
+    void SetUpAxis(int upAxis);
+
+    /**
+     * \brief Set the normals mode, how to export normals.
+     * \param normalsMode The normals mode.
+     */
+    void SetNormalsMode(int normalsMode);
+
+    /**
+     * \brief Set the mesh format, how to export meshes.
+     * \param meshFormat The mesh format to be used.
+     */
+    void SetMeshFormat(int meshFormat);
+
+    /**
+     * \brief Sets the time mode, can be set to CURRENT or EXPLICIT.
+     * \param timeMode The time mode to set.
+     */
+    void SetTimeMode(int timeMode);
+
+    /**
+     * \brief Sets how many samples per max frame are export to USD, when exporting animations.
+     * \param samplesPerFrame The number of samples per frame.
+     */
+    void SetSamplesPerFrame(double samplesPerFrame);
+
+    /**
+     * \brief Gets whether or not the Object-offset transform should be baked into the geometry.
+     * \return True if object offset transform are baked, false otherwise.
+     */
+    bool GetBakeObjectOffsetTransform() const;
+
+    /**
+     * \brief  Sets whether or not the Object-offset transform should be baked into the geometry.
+     * Otherwise, an Xform will be used to represent the node transform's versus the offset.
+     * The object-offset transform is the offset of the object from the node it is attached too.
+     * \param bakeObjectOffset True if we should bake the transform, false otherwise.
+     */
+    void SetBakeObjectOffsetTransform(bool value);
+
+    /**
+     * \brief Gets whether or not to preserve edge orientation
+     * \return True if preserving edge orientation, false otherwise.
+     */
+    bool GetPreserveEdgeOrientation() const;
+
+    /**
+     * \brief Sets whether or not to preserve edge orientation
+     * \param True if preserving edge orientation, false otherwise.
+     */
+    void SetPreserveEdgeOrientation(bool preserve);
+
+    /**
+     * \brief Sets default channel to primvar mappings.
+     */
+    void SetChannelPrimvarMappingDefaults();
+
+    /**
+     * \brief Configures a channel to primvar mapping. The specified channel will be exported using the given
+     * configuration - essentially a target primvar name and a type.
+     * \param channel The channel to configure.
+     * \param nameValue The primvar name.
+     * \param type The primvar type.
+     * \param autoExpandType The auto expand type.
+     */
+    void SetChannelPrimvarMapping(int channel, Value* nameValue, int type, bool autoExpandType);
+
+    /**
+     * \brief Gets the primvar name of a given channel.
+     * \param channel The channel from which we want the primvar name.
+     * \return The primvar name of the channel.
+     */
+    Value* GetChannelPrimvarName(int channel);
+
+    /**
+     * \brief Gets the primvar type of a given channel.
+     * \param channel The channel from which we want the primvar type.
+     * \return The primvar type of the channel.
+     */
+    int GetChannelPrimvarType(int channel);
+
+    /**
+     * \brief Gets the auto expand type of a given channel.
+     * \param channel The channel from which we want the auto expand type.
+     * \return The auto expand type of the channel.
+     */
+    int GetChannelPrimvarAutoExpandType(int channel);
+
+    /**
+     * \brief Gets the configured root prim path.
+     * \return The configured root prim path.
+     */
+    const wchar_t* GetRootPrimPath() const;
+
+    /**
+     * \brief Gets the prim name that will be used to create the USD Skeleton prim.
+     * \return Skeleton prim name
+     */
+    const wchar_t* GetBonesPrimName() const;
+
+    /**
+     * \brief Sets the prim name for where the Skeleton prim will be set to.
+     * This will be the prim name for the Skeleton prim created when exporting
+     * Max bones to USD.
+     */
+    void SetBonesPrimName(const wchar_t* bonePrimName);
+
+    /**
+     * \brief Gets the prim name that will be used to create the USD Skeleton Animations prim.
+     * \return Skeleton Animations prim name
+     */
+    const wchar_t* GetAnimationsPrimName() const;
+
+    /**
+     * \brief Sets the prim name for where the Skeleton Animations prim will be set to.
+     * This will be the prim name for the Skeleton Animations prim created when exporting
+     * Max bones to USD.
+     */
+    void SetAnimationsPrimName(const wchar_t* animationsPrimName);
+
+    /**
+     * \brief Sets the root prim path to export to.
+     * \param rootPath The root prim path to configure.
+     */
+    void SetRootPrimPath(const wchar_t* rootPath);
+
+    /**
+     * \brief Sets the file to which the Materials will be exported.
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \param mtlPath The path and filename of the target material file
+     */
+    void SetMaterialLayerPath(const wchar_t* mtlPath);
+
+    /**
+     * \brief Gets the file to which the Materials will be exported.
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \return The path and filename of the target material file
+     */
+    const wchar_t* GetMaterialLayerPath() const;
+
+    /**
+     * \brief Sets the prim path to which the Materials will be exported.
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \param mtlPath The prim path of the material scope that will host the exported materials
+     */
+    void SetMaterialPrimPath(const wchar_t* mtlPath);
+
+    /**
+     * \brief Gets the scope path to which the Materials will be exported.
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \return The prim path of the material scope that will host the exported materials
+     */
+    const wchar_t* GetMaterialPrimPath() const;
+
+    /**
+     * \brief Serialize the options to a json string.
+     * \return A json formated string representing the options
+     */
+    const MCHAR* Serialize() const;
+
+#ifdef IS_MAX2024_OR_GREATER
+    /**
+     * \brief Sets the Material Switcher export style.
+     * \param exportStyle The Material Switcher export style to set.
+     */
+    void SetMtlSwitcherExportStyle(int exportStyle);
+#endif
+// clang-format off
+    enum
+    {
+        fnIdGetTranslateMeshes, fnIdSetTranslateMeshes,
+        fnIdGetTranslateShapes, fnIdSetTranslateShapes,
+        fnIdGetTranslateLights, fnIdSetTranslateLights,
+        fnIdGetTranslateCameras, fnIdSetTranslateCameras,
+        fnIdGetTranslateSkin, fnIdSetTranslateSkin,
+        fnIdGetTranslateMorpher, fnIdSetTranslateMorpher,
+        fnIdGetTranslateHidden, fnIdSetTranslateHidden,
+        fnIdGetUseUSDVisibility, fnIdSetUseUSDVisibility,
+        fnIdGetAllowNestedGprims, fnIdSetAllowNestedGprims, 
+        fnIdGetFileFormat, fnIdSetFileFormat,
+        fnIdGetUpAxis, fnIdSetUpAxis,
+        fnIdGetBakeObjectOffsetTransform, fnIdSetBakeObjectOffsetTransform,
+        fnIdGetLogPath, fnIdSetLogPath,
+        fnIdGetLogLevel, fnIdSetLogLevel,
+        fnIdReset,
+        fnIdSetChannelPrimvarMappingDefaults,
+        fnIdSetChannelPrimvarMapping,
+        fnIdGetChannelPrimvarType,
+        fnIdGetChannelPrimvarName,
+        fnIdGetChannelPrimvarAutoExpandType,
+        fnIdGetPreserveEdgeOrientation, fnIdSetPreserveEdgeOrientation,
+        fnIdGetNormals, fnIdSetNormals,
+        fnIdGetMeshFormat, fnIdSetMeshFormat,
+        fnIdGetTimeMode,fnIdSetTimeMode,
+        fid_GetStartFrame, fid_SetStartFrame,
+        fid_GetEndFrame, fid_SetEndFrame,
+        fid_GetSamplesPerFrame, fid_SetSamplesPerFrame,
+        fnIdGetTranslateMaterials, fnIdSetTranslateMaterials,
+        fnIdGetShadingMode, fnIdSetShadingMode,
+        fnIdGetAllMaterialConversions, fnIdSetAllMaterialConversions,
+        fnIdGetAvailableMaterialConversions,
+        fnIdGetUsdStagesAsReferences, fnIdSetUsdStagesAsReferences,
+        fnIdGetRootPrimPath, fnIdSetRootPrimPath,
+        fnIdGetBonesPrimName, fnIdSetBonesPrimName,
+        fnIdGetAnimationsPrimName, fnIdSetAnimationsPrimName,
+        fnIdGetOpenInUsdview, fnIdSetOpenInUsdview,
+        fnIdGetAvailableChasers,
+        fnIdGetChaserNames, fnIdSetChaserNames,
+        fnIdGetAllChaserArgs, fnIdSetAllChaserArgs,
+        fnIdGetContextNames, fnIdSetContextNames,
+#ifdef IS_MAX2024_OR_GREATER
+        fnIdGetMtlSwitcherExportStyle, fnIdSetMtlSwitcherExportStyle,
+#endif
+        fnIdGetMaterialLayerPath, fnIdSetMaterialLayerPath,
+        fnIdGetMaterialPrimPath, fnIdSetMaterialPrimPath,
+        fnIdGetUseSeparateMaterialLayer, fnIdSetUseSeparateMaterialLayer,
+        fnIdGetUseProgressBar, fnIdSetUseProgressBar,
+        fnIdGetUseLastResortUSDPreviewSurfaceWriter, fnIdSetUseLastResortUSDPreviewSurfaceWriter,
+        fidSerialize,
+    };
+
+    enum
+    {
+        eIdFileFormat,
+        eIdUpAxis,
+        eIdPrimvarType,
+        eIdLogLevel,
+        eIdNormalsMode,
+        eIdTimeMode,
+        eIdMeshFormat,
+#ifdef IS_MAX2024_OR_GREATER
+        eIdMtlSwitcherExportStyle
+#endif
+    };
+
+    BEGIN_FUNCTION_MAP
+        PROP_FNS(fnIdGetTranslateMeshes, GetTranslateMeshes, fnIdSetTranslateMeshes, SetTranslateMeshes, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateShapes, GetTranslateShapes, fnIdSetTranslateShapes, SetTranslateShapes, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateLights, GetTranslateLights, fnIdSetTranslateLights, SetTranslateLights, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateCameras, GetTranslateCameras, fnIdSetTranslateCameras, SetTranslateCameras, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateMaterials, GetTranslateMaterials, fnIdSetTranslateMaterials, SetTranslateMaterials, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateSkin, GetTranslateSkin, fnIdSetTranslateSkin, SetTranslateSkin, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateMorpher, GetTranslateMorpher, fnIdSetTranslateMorpher, SetTranslateMorpher, TYPE_BOOL);
+        PROP_FNS(fnIdGetShadingMode, GetShadingMode, fnIdSetShadingMode, SetShadingMode, TYPE_STRING);
+        PROP_FNS(fnIdGetUsdStagesAsReferences, GetUsdStagesAsReferences, fnIdSetUsdStagesAsReferences, SetUsdStagesAsReferences, TYPE_BOOL);
+        PROP_FNS(fnIdGetTranslateHidden, GetTranslateHidden, fnIdSetTranslateHidden, SetTranslateHidden, TYPE_BOOL);
+        PROP_FNS(fnIdGetUseUSDVisibility, GetUseUSDVisibility, fnIdSetUseUSDVisibility, SetUseUSDVisibility, TYPE_BOOL);
+        PROP_FNS(fnIdGetAllowNestedGprims, GetAllowNestedGprims, fnIdSetAllowNestedGprims, SetAllowNestedGprims, TYPE_BOOL);
+        PROP_FNS(fnIdGetFileFormat, GetFileFormat, fnIdSetFileFormat, SetFileFormat, TYPE_ENUM);
+        PROP_FNS(fnIdGetNormals, GetNormalsMode, fnIdSetNormals, SetNormalsMode, TYPE_ENUM);
+        PROP_FNS(fnIdGetMeshFormat, GetMeshFormat, fnIdSetMeshFormat, SetMeshFormat, TYPE_ENUM);
+        PROP_FNS(fnIdGetUpAxis, GetUpAxis, fnIdSetUpAxis, SetUpAxis, TYPE_ENUM);
+        PROP_FNS(fnIdGetBakeObjectOffsetTransform, GetBakeObjectOffsetTransform, fnIdSetBakeObjectOffsetTransform, SetBakeObjectOffsetTransform, TYPE_BOOL);
+        PROP_FNS(fnIdGetPreserveEdgeOrientation, GetPreserveEdgeOrientation, fnIdSetPreserveEdgeOrientation, SetPreserveEdgeOrientation, TYPE_BOOL);
+        PROP_FNS(fnIdGetTimeMode, GetTimeMode, fnIdSetTimeMode, SetTimeMode, TYPE_ENUM);
+        PROP_FNS(fid_GetStartFrame, GetStartFrame, fid_SetStartFrame, SetStartFrame, TYPE_DOUBLE);
+        PROP_FNS(fid_GetEndFrame, GetEndFrame, fid_SetEndFrame, SetEndFrame, TYPE_DOUBLE);
+        PROP_FNS(fid_GetSamplesPerFrame, GetSamplesPerFrame, fid_SetSamplesPerFrame, SetSamplesPerFrame, TYPE_DOUBLE);
+        PROP_FNS(fnIdGetRootPrimPath, GetRootPrimPath, fnIdSetRootPrimPath, SetRootPrimPath, TYPE_STRING);
+        PROP_FNS(fnIdGetBonesPrimName, GetBonesPrimName, fnIdSetBonesPrimName, SetBonesPrimName, TYPE_STRING);
+        PROP_FNS(fnIdGetAnimationsPrimName, GetAnimationsPrimName, fnIdSetAnimationsPrimName, SetAnimationsPrimName, TYPE_STRING);
+        PROP_FNS(fnIdGetLogPath, logInterface.GetLogPath, fnIdSetLogPath, logInterface.SetLogPath, TYPE_STRING);
+        PROP_FNS(fnIdGetLogLevel, logInterface.GetLogLevel, fnIdSetLogLevel, logInterface.SetLogLevel, TYPE_ENUM);
+        PROP_FNS(fnIdGetOpenInUsdview, GetOpenInUsdview, fnIdSetOpenInUsdview, SetOpenInUsdview, TYPE_BOOL);
+        PROP_FNS(fnIdGetChaserNames, GetChaserNamesMxs, fnIdSetChaserNames, SetChaserNamesMxs, TYPE_TSTR_TAB_BV);
+        PROP_FNS(fnIdGetAllChaserArgs, GetAllChaserArgs, fnIdSetAllChaserArgs, SetAllChaserArgs, TYPE_VALUE);
+        PROP_FNS(fnIdGetContextNames, GetContextNamesMxs, fnIdSetContextNames, SetContextNamesMxs, TYPE_TSTR_TAB_BV);
+#ifdef IS_MAX2024_OR_GREATER
+        PROP_FNS(fnIdGetMtlSwitcherExportStyle, GetMtlSwitcherExportStyle, fnIdSetMtlSwitcherExportStyle, SetMtlSwitcherExportStyle, TYPE_ENUM);
+#endif
+        PROP_FNS(fnIdGetUseProgressBar, GetUseProgressBar, fnIdSetUseProgressBar, SetUseProgressBar, TYPE_BOOL);
+        PROP_FNS(fnIdGetMaterialLayerPath, GetMaterialLayerPath, fnIdSetMaterialLayerPath, SetMaterialLayerPath, TYPE_STRING);
+        PROP_FNS(fnIdGetMaterialPrimPath, GetMaterialPrimPath, fnIdSetMaterialPrimPath, SetMaterialPrimPath, TYPE_STRING);
+        PROP_FNS(fnIdGetUseSeparateMaterialLayer, GetUseSeparateMaterialLayer, fnIdSetUseSeparateMaterialLayer, SetUseSeparateMaterialLayer, TYPE_BOOL);
+        PROP_FNS(fnIdGetUseLastResortUSDPreviewSurfaceWriter, GetUseLastResortUSDPreviewSurfaceWriter, fnIdSetUseLastResortUSDPreviewSurfaceWriter, SetUseLastResortUSDPreviewSurfaceWriter, TYPE_BOOL);
+        VFN_0(fnIdReset, SetDefaults);
+        VFN_0(fnIdSetChannelPrimvarMappingDefaults, SetChannelPrimvarMappingDefaults);
+        VFN_4(fnIdSetChannelPrimvarMapping, SetChannelPrimvarMapping, TYPE_INT, TYPE_VALUE, TYPE_ENUM, TYPE_BOOL);
+        FN_1(fnIdGetChannelPrimvarName, TYPE_VALUE, GetChannelPrimvarName, TYPE_INT);
+        FN_1(fnIdGetChannelPrimvarType, TYPE_ENUM, GetChannelPrimvarType, TYPE_INT);
+        FN_1(fnIdGetChannelPrimvarAutoExpandType, TYPE_bool, GetChannelPrimvarAutoExpandType, TYPE_INT);
+        FN_0(fnIdGetAllMaterialConversions, TYPE_TSTR_TAB_BV, GetAllMaterialTargets);
+        VFN_1(fnIdSetAllMaterialConversions, SetAllMaterialTargets, TYPE_TSTR_TAB_BV);
+        FN_0(fnIdGetAvailableMaterialConversions, TYPE_TSTR_TAB_BV, GetAvailableMaterialTargets);
+        FN_0(fnIdGetAvailableChasers, TYPE_STRING_TAB_BV, GetAvailableChasers);
+        FN_0(fidSerialize, TYPE_STRING, Serialize);
+    END_FUNCTION_MAP
+// clang-format on
+
+private:
+    IOLoggingMxsInterface logInterface { this };
+
+    /**
+     * \brief Returns the primvar config for a given channel. If an invalid channel is given, this function will
+     * throw a Maxscript runtime exception.
+     * \param channel The channel for which to get the primvar config.
+     * \return The primvar config for this channel.
+     */
+    const MappedAttributeBuilder::Config GetValidPrimvarConfig(int channel);
+
+    /**
+     * \brief Sets the shading schema (mode) to use for material export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \param shadingMode The shading schema (mode) to apply on material export
+     */
+    void SetShadingMode(const wchar_t* shadingMode);
+
+    /**
+     * \brief Gets the shading schema (mode) to use for material export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * \return The shading schema (mode) to apply on materials
+     */
+    const wchar_t* GetShadingMode() const;
+
+    /**
+     * \brief Gets the set of targeted materials for material conversion
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (GetAllMaterialConversions) \return USD Material target set to convert to
+     */
+    Tab<TSTR*> GetAllMaterialTargets() const;
+
+    /**
+     * \brief Sets the set of targeted materials for material conversion
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (SetAllMaterialConversions) \param materialArray USD Material target set to convert to
+     */
+    void SetAllMaterialTargets(const Tab<TSTR*>& materialArray);
+
+    /**
+     * \brief Gets the list of available material conversion types from the ShadingModeRegistry
+     * \return All registered USD Material types to convert to
+     */
+    Tab<TSTR*> GetAvailableMaterialTargets() const;
+
+    /**
+     * \brief Gets the list of available export chaser from the ExportChaserRegistry
+     * \return All registered export chaser (names)
+     */
+    Tab<TSTR*> GetAvailableChasers() const;
+
+    /**
+     * \brief Sets the chaser list to use at export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (SetChaserNames) \param chaserArray The list of export chaser to call at export
+     */
+    void SetChaserNamesMxs(const Tab<TSTR*>& chaserArray);
+
+    /**
+     * \brief Gets the list of export chasers to be called at USD export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (GetChaserNames) \return All export chasers to be called at USD export
+     */
+    Tab<TSTR*> GetChaserNamesMxs() const;
+
+    /**
+     * \brief Sets the export chasers' arguments map
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (SetAllChaserArgs) \param chaserArgs a map of arguments ([chaser:[[key:value][...]]]) or
+     * using an array of arguments (#(chaser,key,value,chaser,key,value,...))
+     */
+    void SetAllChaserArgs(Value* chaserArgs);
+
+    /**
+     * \brief Gets the map of export chasers with their specified arguments
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (GetAllChaserArgs) \return The map of export chasers with their specified arguments
+     */
+    Value* GetAllChaserArgs();
+
+    /**
+     * \brief Sets the context list to use at export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (SetContextNames) \param contextArray The list of context to apply at export
+     */
+    void SetContextNamesMxs(const Tab<TSTR*>& contextArray);
+
+    /**
+     * \brief Gets the list of contexts (plug-in configurations) to be applied on USD export
+     * This is the maxscript exposed method from the USDSceneBuilderOptions base class
+     * (GetContextNames) \return All contexts names to be applied on USD export
+     */
+    Tab<TSTR*> GetContextNamesMxs() const;
+
+    // maxscript value holder to prevent passed chaser arguments dictionary from being GC'ed
+    ValueHolderMember allChaserArgsMxsHolder;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Interfaces/IUSDImportOptions.cpp b/src/MaxUsd/Interfaces/IUSDImportOptions.cpp
new file mode 100644
index 0000000..86d9777
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IUSDImportOptions.cpp
@@ -0,0 +1,458 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "IUSDImportOptions.h"
+
+#include <USDImport/USDImport.h>
+
+#include <MaxUsd/Chaser/ImportChaserRegistry.h>
+#include <MaxUsd/Utilities/MetaDataUtils.h>
+#include <MaxUsd/Utilities/MxsUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <maxscript/foundation/MXSDictionaryValue.h>
+#include <maxscript/foundation/arrays.h>
+#include <maxscript/foundation/numbers.h>
+#include <maxscript/foundation/strings.h>
+
+namespace MAXUSD_NS_DEF {
+
+// clang-format off
+FPInterfaceDesc IUSDImportOptionsDesc(
+	IUSDImportOptions_INTERFACE_ID, _T("IUSDImportOptions"), 0, NULL, FP_MIXIN,
+	// Functions
+	IUSDImportOptions::fnIdReset, _T("Reset"), "Reset to defaults options", TYPE_VOID, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fidSerialize, _T("Serialize"), "Serialize the options to a JSON formatted string.", TYPE_STRING, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fnIdGetTranslateMaterials, _T("Materials"), "Returns if materials should be translated", TYPE_BOOL, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fnIdSetPrimvarChannelMappingDefaults, _T("SetPrimvarChannelMappingDefaults"), "Reset to defaults primvar to channel mappings.", TYPE_VOID, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fnIdSetPrimvarChannelMapping, _T("SetPrimvarChannelMapping"), "Sets a primvar to channel mapping", TYPE_VOID, FP_NO_REDRAW, 2,
+		_T("primvar"), 0, TYPE_STRING,
+		_T("targetChannel"), 0, TYPE_VALUE,
+	IUSDImportOptions::fnIdGetPrimvarChannel, _T("GetPrimvarChannel"), "Returns the channel the given primvar should map too.", TYPE_VALUE, FP_NO_REDRAW, 1,
+		_T("primvar"), 0, TYPE_STRING,
+	IUSDImportOptions::fnIdIsMappedPrimvar, _T("IsMappedPrimvar"), "Returns whether this primvar is mapped to a channel.", TYPE_BOOL, FP_NO_REDRAW, 1,
+		_T("primvar"), 0, TYPE_STRING,
+	IUSDImportOptions::fnIdGetMappedPrimvars, _T("GetMappedPrimvars"), "Returns the list of currently mapped primvars.", TYPE_STRING_TAB_BV, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fnIdClearMappedPrimvars, _T("ClearMappedPrimvars"), "Clears all primvar to channel mappings.", TYPE_VOID, FP_NO_REDRAW, 0,
+	IUSDImportOptions::fnIdGetAvailableChasers, _T("AvailableChasers"), "Returns an array of all available import chasers", TYPE_TSTR_TAB_BV, FP_NO_REDRAW, 0, properties,
+	IUSDImportOptions::fnIdGetChaserNames, IUSDImportOptions::fnIdSetChaserNames, _T("ChaserNames"), 0, TYPE_TSTR_TAB_BV,
+	IUSDImportOptions::fnIdGetAllChaserArgs, IUSDImportOptions::fnIdSetAllChaserArgs, _T("AllChaserArgs"), 0, TYPE_VALUE,
+	IUSDImportOptions::fnIdGetContextNames, IUSDImportOptions::fnIdSetContextNames, _T("ContextNames"), 0, TYPE_TSTR_TAB_BV,
+	IUSDImportOptions::fnIdGetStageMask, IUSDImportOptions::fnIdSetStageMask, _T("StageMask"), FP_NO_REDRAW, TYPE_STRING_TAB,
+	IUSDImportOptions::fnIdGetMetaDataIncludes, IUSDImportOptions::fnIdSetMetaDataIncludes, _T("MetaData"), FP_NO_REDRAW, TYPE_ENUM_TAB_BV, IUSDImportOptions::eIdMetaData,
+	IUSDImportOptions::fnIdGetStartTimeCode, IUSDImportOptions::fnIdSetStartTimeCode, _T("StartTimeCode"), FP_NO_REDRAW, TYPE_DOUBLE,
+	IUSDImportOptions::fnIdGetEndTimeCode, IUSDImportOptions::fnIdSetEndTimeCode, _T("EndTimeCode"), FP_NO_REDRAW, TYPE_DOUBLE,
+	IUSDImportOptions::fnIdGetTimeMode, IUSDImportOptions::fnIdSetTimeMode, _T("TimeMode"), FP_NO_REDRAW, TYPE_ENUM, IUSDImportOptions::eIdTimeMode,
+	IUSDImportOptions::fnIdGetInitialLoadSet, IUSDImportOptions::fnIdSetInitialLoadSet, _T("InitialLoadSet"), FP_NO_REDRAW, TYPE_ENUM, IUSDImportOptions::eIdInitialLoadSet,
+	IUSDImportOptions::fnIdGetLogPath, IUSDImportOptions::fnIdSetLogPath, _T("LogPath"), FP_NO_REDRAW, TYPE_STRING,
+	IUSDImportOptions::fnIdGetLogLevel, IUSDImportOptions::fnIdSetLogLevel, _T("LogLevel"), FP_NO_REDRAW, TYPE_ENUM, IUSDImportOptions::eIdLogLevel,
+	IUSDImportOptions::fnIdGetImportUnmappedPrimvars, IUSDImportOptions::fnIdSetImportUnmappedPrimvars, _T("ImportUnmappedPrimvars"), FP_NO_REDRAW, TYPE_BOOL, 
+	IUSDImportOptions::fnIdGetUseProgressBar, IUSDImportOptions::fnIdSetUseProgressBar, _T("UseProgressBar"), 0, TYPE_BOOL, 
+	IUSDImportOptions::fnIdGetPreferredMaterial, IUSDImportOptions::fnIdSetPreferredMaterial, _T("PreferredMaterial"), 0, TYPE_STRING,
+	IUSDImportOptions::fnIdGetShadingModes, IUSDImportOptions::fnIdSetShadingModes, _T("ShadingModes"), 0, TYPE_VALUE, enums,
+	IUSDImportOptions::eIdTimeMode, 4,
+		_T("AllRange"), MaxSceneBuilderOptions::ImportTimeMode::AllRange,
+		_T("CustomRange"), MaxSceneBuilderOptions::ImportTimeMode::CustomRange,
+		_T("StartTime"), MaxSceneBuilderOptions::ImportTimeMode::StartTime,
+		_T("EndTime"), MaxSceneBuilderOptions::ImportTimeMode::EndTime,
+	IUSDImportOptions::eIdInitialLoadSet, 2,
+		_T("loadAll"), pxr::UsdStage::InitialLoadSet::LoadAll,
+		_T("loadNone"), pxr::UsdStage::InitialLoadSet::LoadNone,
+	IUSDImportOptions::eIdLogLevel, 4,
+		_T("off"), MaxUsd::Log::Level::Off,
+		_T("info"), MaxUsd::Log::Level::Info,
+		_T("warn"), MaxUsd::Log::Level::Warn,
+		_T("error"), MaxUsd::Log::Level::Error,
+	IUSDImportOptions::eIdMetaData, 3,
+		_T("kind"), MaxUsd::MetaData::Kind,
+		_T("purpose"), MaxUsd::MetaData::Purpose,
+		_T("hidden"), MaxUsd::MetaData::Hidden,
+	p_end
+);
+// clang-format on
+
+IUSDImportOptions::IUSDImportOptions()
+{
+    // default settings must be applied manually
+    // it implies loading the USD plugin material conversion types
+    // which must take place outside the DLL initialization
+}
+
+IUSDImportOptions::IUSDImportOptions(const IUSDImportOptions& options) { SetOptions(options); }
+
+IUSDImportOptions::IUSDImportOptions(const MaxSceneBuilderOptions& options) { SetOptions(options); }
+
+const IUSDImportOptions& IUSDImportOptions::operator=(const IUSDImportOptions& options)
+{
+    SetOptions(options);
+    return *this;
+}
+
+Tab<const wchar_t*> IUSDImportOptions::GetStageMaskPaths() const
+{
+    auto& paths = MaxSceneBuilderOptions::GetStageMaskPaths();
+    // Build the tab
+    Tab<const wchar_t*> tab;
+    tab.SetCount(int(paths.size()));
+    for (size_t i = 0; i < paths.size(); ++i) {
+        tab[i] = MaxUsd::UsdStringToMaxString(paths[i].GetString()).data();
+    }
+    // RVO.
+    return tab;
+}
+
+void IUSDImportOptions::SetStageMaskPaths(Tab<const wchar_t*> value)
+{
+    std::vector<pxr::SdfPath> paths;
+    for (int i = 0; i < value.Count(); i++) {
+        const auto& path = pxr::SdfPath(MaxUsd::MaxStringToUsdString(value[i]).c_str());
+        // Make sure the given paths are valid.
+        if (!path.IsAbsolutePath() || !path.IsAbsoluteRootOrPrimPath()) {
+            const auto errorMsg
+                = std::wstring(
+                      L"Stage mask could not be set. Invalid USD absolute prim path found : ")
+                      .append(value[i]);
+            throw RuntimeError(errorMsg.c_str());
+        }
+        paths.emplace_back(path);
+    }
+    MaxSceneBuilderOptions::SetStageMaskPaths(paths);
+};
+
+Tab<int> IUSDImportOptions::GetMetaDataIncludes() const
+{
+    auto& metaDataIncludes = GetMetaData();
+    // Build the tab
+    Tab<int> tab;
+    int      size = int(metaDataIncludes.size());
+    for (int incl : metaDataIncludes) {
+        tab.Append(1, &incl, size);
+    }
+    return tab;
+};
+
+void IUSDImportOptions::SetMetaDataIncludes(Tab<int> value)
+{
+    std::set<int> metaDataIncludes;
+    for (int i = 0; i < value.Count(); i++) {
+        metaDataIncludes.emplace(value[i]);
+    }
+    SetMetaData(metaDataIncludes);
+}
+
+void IUSDImportOptions::SetTimeMode(int value)
+{
+    const auto timeMode = static_cast<ImportTimeMode>(value);
+    // Make sure the value is valid.
+    if (timeMode != ImportTimeMode::AllRange && timeMode != ImportTimeMode::CustomRange
+        && timeMode != ImportTimeMode::EndTime && timeMode != ImportTimeMode::StartTime) {
+        const WStr errorMsg(
+            L"Incorrect TimeMode select for import. Accepted values are #AllRange, #CustomRange, "
+            L"#StartTime and #EndTime.");
+        throw RuntimeError(errorMsg.data());
+    }
+    MaxSceneBuilderOptions::SetTimeMode(timeMode);
+}
+
+int IUSDImportOptions::GetTimeMode() const
+{
+    return static_cast<int>(MaxSceneBuilderOptions::GetTimeMode());
+}
+
+void IUSDImportOptions::SetInitialLoadSet(int value)
+{
+    const auto loadSet = pxr::UsdStage::InitialLoadSet(value);
+    // Make sure the value is valid.
+    if (loadSet != pxr::UsdStage::InitialLoadSet::LoadAll
+        && loadSet != pxr::UsdStage::InitialLoadSet::LoadNone) {
+        WStr errorMsg(
+            L"Incorrect InitialLoadSet value. Accepted values are #loadAll and #loadNone.");
+        throw RuntimeError(errorMsg.data());
+    }
+    SetStageInitialLoadSet(loadSet);
+}
+
+int IUSDImportOptions::GetInitialLoadSet() { return GetStageInitialLoadSet(); }
+
+void IUSDImportOptions::SetPrimvarChannelMappingDefaults()
+{
+    auto mappingOptions = GetPrimvarMappingOptions();
+    mappingOptions.SetDefaultPrimvarChannelMappings();
+    SetPrimvarMappingOptions(mappingOptions);
+}
+
+bool IUSDImportOptions::GetImportUnmappedPrimvars() const
+{
+    return GetPrimvarMappingOptions().GetImportUnmappedPrimvars();
+}
+
+void IUSDImportOptions::SetImportUnmappedPrimvars(bool importUnmappedPrimvars)
+{
+    auto mappingOptions = GetPrimvarMappingOptions();
+    mappingOptions.SetImportUnmappedPrimvars(importUnmappedPrimvars);
+    SetPrimvarMappingOptions(mappingOptions);
+}
+
+void IUSDImportOptions::SetPrimvarChannelMapping(const wchar_t* primvarName, Value* channel)
+{
+    PrimvarMappingOptions mappingOptions = GetPrimvarMappingOptions();
+    MaxUsd::mxs::SetPrimvarChannelMapping(mappingOptions, primvarName, channel);
+    SetPrimvarMappingOptions(mappingOptions.GetOptions());
+}
+
+Value* IUSDImportOptions::GetPrimvarChannel(const wchar_t* primvarName)
+{
+    return MaxUsd::mxs::GetPrimvarChannel(GetPrimvarMappingOptions(), primvarName);
+}
+
+Tab<const wchar_t*> IUSDImportOptions::GetMappedPrimvars() const
+{
+    return MaxUsd::mxs::GetMappedPrimvars(GetPrimvarMappingOptions());
+}
+
+bool IUSDImportOptions::IsMappedPrimvar(const wchar_t* primvarName)
+{
+    return MaxUsd::mxs::IsMappedPrimvar(GetPrimvarMappingOptions(), primvarName);
+}
+
+void IUSDImportOptions::ClearMappedPrimvars()
+{
+    auto mappingOptions = GetPrimvarMappingOptions();
+    mappingOptions.ClearMappedPrimvars();
+    SetPrimvarMappingOptions(mappingOptions);
+}
+
+void IUSDImportOptions::SetShadingModes(Value* shadingModesValue)
+{
+    if (is_array(shadingModesValue)) {
+        MaxSceneBuilderOptions::ShadingModes shadingModes;
+        Array* shadingModesArray = dynamic_cast<Array*>(shadingModesValue);
+        for (int i = 0; i < shadingModesArray->size; ++i) {
+            auto item = (*shadingModesArray)[i];
+            if (is_array(item)) {
+                Array* shadingModePair = dynamic_cast<Array*>(item);
+                if (shadingModePair->size != 2) {
+                    throw RuntimeError(L"Badly formed ShadingMode pair. Expecting 2 elements "
+                                       L"(<mode>, <materialConversion>).");
+                }
+                Value* mode = (*shadingModePair)[0];
+                Value* materialConversion = (*shadingModePair)[1];
+                if (!is_string(mode) || !is_string(materialConversion)) {
+                    throw RuntimeError(L"Badly formed dictionary entry. Expecting material "
+                                       L"conversion string for shading mode.");
+                }
+                shadingModes.push_back(pxr::VtDictionary {
+                    { pxr::MaxUsdShadingModesTokens->mode,
+                      pxr::VtValue(pxr::TfToken(MaxUsd::MaxStringToUsdString(mode->to_string()))) },
+                    { pxr::MaxUsdShadingModesTokens->materialConversion,
+                      pxr::VtValue(pxr::TfToken(
+                          MaxUsd::MaxStringToUsdString(materialConversion->to_string()))) } });
+            }
+        }
+
+        MaxSceneBuilderOptions::SetShadingModes(shadingModes);
+    }
+}
+
+Value* IUSDImportOptions::GetShadingModes()
+{
+    shadingModesMxsHolder.set_value(
+        new Array(static_cast<int>(MaxSceneBuilderOptions::GetShadingModes().size())));
+
+    ScopedMaxScriptEvaluationContext scopedMaxScriptEvaluationContext;
+    MAXScript_TLS*                   _tls = scopedMaxScriptEvaluationContext.Get_TLS();
+    four_typed_value_locals_tls(
+        Array * shadingModesArray,
+        Array * shadingModePair,
+        Value * mode,
+        Value * materialConversion)
+
+        vl.shadingModesArray
+        = dynamic_cast<Array*>(shadingModesMxsHolder.get_value());
+
+    for (const auto& shadingMode : MaxSceneBuilderOptions::GetShadingModes()) {
+        vl.mode = new String(
+            MaxUsd::UsdStringToMaxString(
+                pxr::VtDictionaryGet<pxr::TfToken>(shadingMode, pxr::MaxUsdShadingModesTokens->mode)
+                    .GetString())
+                .data());
+        vl.materialConversion
+            = new String(MaxUsd::UsdStringToMaxString(
+                             pxr::VtDictionaryGet<pxr::TfToken>(
+                                 shadingMode, pxr::MaxUsdShadingModesTokens->materialConversion)
+                                 .GetString())
+                             .data());
+        vl.shadingModePair = new Array(0);
+        vl.shadingModePair->append(vl.mode);
+        vl.shadingModePair->append(vl.materialConversion);
+        vl.shadingModesArray->append(vl.shadingModePair);
+    }
+    return shadingModesMxsHolder.get_value();
+}
+
+void IUSDImportOptions::SetPreferredMaterial(const wchar_t* targetMaterial)
+{
+    BaseClass::SetPreferredMaterial(pxr::TfToken(MaxUsd::MaxStringToUsdString(targetMaterial)));
+}
+
+const wchar_t* IUSDImportOptions::GetPreferredMaterial() const
+{
+    return (MaxUsd::UsdStringToMaxString(BaseClass::GetPreferredMaterial()).data());
+}
+
+Tab<TSTR*> IUSDImportOptions::GetAvailableChasers() const
+{
+    Tab<TSTR*> chaserArray;
+    auto       chasers = pxr::MaxUsdImportChaserRegistry::GetAllRegisteredChasers();
+    for (const auto& chaser : chasers) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(chaser.GetString()));
+        chaserArray.Append(1, &mxsCopy);
+    }
+    return chaserArray;
+}
+
+void IUSDImportOptions::SetChaserNamesMxs(const Tab<TSTR*>& chaserArray)
+{
+    std::vector<std::string> chaserNames;
+    for (int i = 0; i < chaserArray.Count(); ++i) {
+        chaserNames.push_back(MaxUsd::MaxStringToUsdString(chaserArray[i]->data()));
+    }
+    SetChaserNames(chaserNames);
+}
+
+Tab<TSTR*> IUSDImportOptions::GetChaserNamesMxs() const
+{
+    Tab<TSTR*> chaserArray;
+    for (const auto& chaserName : MaxSceneBuilderOptions::GetChaserNames()) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(chaserName));
+        chaserArray.Append(1, &mxsCopy);
+    }
+    return chaserArray;
+}
+
+void IUSDImportOptions::SetAllChaserArgs(Value* chaserArgsValue)
+{
+    if (is_dictionary(chaserArgsValue)) {
+        MXSDictionaryValue* dict = dynamic_cast<MXSDictionaryValue*>(chaserArgsValue);
+        Array*              chasers = dict->getKeys();
+        auto                allChaserArgs = MaxSceneBuilderOptions::GetAllChaserArgs();
+        for (int i = 0; i < chasers->size; ++i) {
+            Value* chaserName = (*chasers)[i];
+            Value* chaserArgs = dict->get(chaserName);
+            if (!is_dictionary(chaserArgs)) {
+                throw RuntimeError(
+                    L"Badly formed dictionary entry. Expecting Dictionary to for arguments.");
+            }
+
+            ChaserArgs          args;
+            MXSDictionaryValue* dictArgs = dynamic_cast<MXSDictionaryValue*>(chaserArgs);
+            Array*              argKeys = dictArgs->getKeys();
+
+            for (int j = 0; j < argKeys->size; ++j) {
+                Value* argKey = (*argKeys)[j];
+                Value* argValue = dictArgs->get(argKey);
+
+                args[MaxUsd::MaxStringToUsdString(argKey->to_string())]
+                    = MaxUsd::MaxStringToUsdString(argValue->to_string());
+            }
+            allChaserArgs[MaxStringToUsdString(chaserName->to_string())] = args;
+        }
+        MaxSceneBuilderOptions::SetAllChaserArgs(allChaserArgs);
+    } else if (is_array(chaserArgsValue)) {
+        auto   allChaserArgs = MaxSceneBuilderOptions::GetAllChaserArgs();
+        Array* argsArray = dynamic_cast<Array*>(chaserArgsValue);
+        if (argsArray->size % 3) {
+            throw RuntimeError(L"Badly formed Array. Expecting 3 elements per argument entry "
+                               L"(<chaser>, <key>, <value>).");
+        }
+        for (int i = 0; i < argsArray->size; i = i + 3) {
+            Value* chaserName = (*argsArray)[i];
+            Value* argKey = (*argsArray)[i + 1];
+            Value* argValue = (*argsArray)[i + 2];
+
+            ChaserArgs& chaserArgs = allChaserArgs[MaxStringToUsdString(chaserName->to_string())];
+            chaserArgs[MaxUsd::MaxStringToUsdString(argKey->to_string())]
+                = MaxUsd::MaxStringToUsdString(argValue->to_string());
+        }
+        MaxSceneBuilderOptions::SetAllChaserArgs(allChaserArgs);
+    } else {
+        throw RuntimeError(
+            L"Invalid parameter type provided. Expecting a maxscript Dictionary or Array.");
+    }
+}
+
+Value* IUSDImportOptions::GetAllChaserArgs()
+{
+    if (allChaserArgsMxsHolder.get_value() == nullptr) {
+        allChaserArgsMxsHolder.set_value(new MXSDictionaryValue(MXSDictionaryValue::key_string));
+    }
+
+    ScopedMaxScriptEvaluationContext scopedMaxScriptEvaluationContext;
+    MAXScript_TLS*                   _tls = scopedMaxScriptEvaluationContext.Get_TLS();
+    five_typed_value_locals_tls(
+        MXSDictionaryValue * allChaserArgsDict,
+        MXSDictionaryValue * argsDict,
+        Value * chaserName,
+        Value * argKey,
+        Value * argValue)
+
+        vl.allChaserArgsDict
+        = dynamic_cast<MXSDictionaryValue*>(allChaserArgsMxsHolder.get_value());
+    // remove the previous args if any
+    vl.allChaserArgsDict->free();
+    for (const auto& chaserArgs : MaxSceneBuilderOptions::GetAllChaserArgs()) {
+        vl.argsDict = new MXSDictionaryValue(MXSDictionaryValue::key_string);
+        vl.chaserName = new String(MaxUsd::UsdStringToMaxString(chaserArgs.first).data());
+        for (const auto& chaserArgsValue : chaserArgs.second) {
+            vl.argKey = new String(MaxUsd::UsdStringToMaxString(chaserArgsValue.first).data());
+            vl.argValue = new String(MaxUsd::UsdStringToMaxString(chaserArgsValue.second).data());
+            vl.argsDict->put(vl.argKey, vl.argValue);
+        }
+        vl.allChaserArgsDict->put(vl.chaserName, vl.argsDict);
+    }
+    return allChaserArgsMxsHolder.get_value();
+}
+
+void IUSDImportOptions::SetContextNamesMxs(const Tab<TSTR*>& contextArray)
+{
+    std::set<std::string> contextNames;
+    for (int i = 0; i < contextArray.Count(); ++i) {
+        contextNames.insert(MaxUsd::MaxStringToUsdString(contextArray[i]->data()));
+    }
+    SetContextNames(contextNames);
+}
+
+Tab<TSTR*> IUSDImportOptions::GetContextNamesMxs() const
+{
+    Tab<TSTR*> contextArray;
+    for (const auto& contextName : MaxSceneBuilderOptions::GetContextNames()) {
+        auto mxsCopy = new TSTR(UsdStringToMaxString(contextName));
+        contextArray.Append(1, &mxsCopy);
+    }
+    return contextArray;
+}
+
+const MCHAR* IUSDImportOptions::Serialize() const
+{
+    auto        jsonString = OptionUtils::SerializeOptionsToJson(*this);
+    static WStr maxString;
+    maxString = UsdStringToMaxString(jsonString);
+    return maxString.data();
+}
+
+FPInterfaceDesc* IUSDImportOptions::GetDesc() { return &IUSDImportOptionsDesc; }
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Interfaces/IUSDImportOptions.h b/src/MaxUsd/Interfaces/IUSDImportOptions.h
new file mode 100644
index 0000000..dbcca62
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IUSDImportOptions.h
@@ -0,0 +1,327 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "IOLoggingMxsInterface.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+
+#include <maxscript/foundation/ValueHolderMember.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief USD Scene Build configuration options.
+ */
+
+#define IUSDImportOptions_INTERFACE_ID Interface_ID(0x2469489d, 0x73a855c8)
+
+class MaxUSDAPI IUSDImportOptions
+    : public FPMixinInterface
+    , public MaxSceneBuilderOptions
+{
+
+public:
+    typedef MaxSceneBuilderOptions BaseClass;
+
+    // Inherited methods
+    FPInterfaceDesc* GetDesc();
+    const TCHAR*     GetName() { return _T("IUSDImportOptions"); }
+    BaseInterface*   AcquireInterface() { return this; }
+    void             ReleaseInterface() { delete this; }
+
+    /**
+     * \brief Constructor.
+     */
+    IUSDImportOptions();
+
+    /**
+     * \brief Copy constructor.
+     * \param Options to copy from.
+     */
+    IUSDImportOptions(const IUSDImportOptions& options);
+
+    /**
+     * \brief Copy constructor from base class.
+     * \param Options to copy from.
+     */
+    IUSDImportOptions(const MaxSceneBuilderOptions& options);
+
+    /**
+     * \brief Assignement operator
+     * \param Options to assign
+     * \return The assigned options object.
+     */
+    const IUSDImportOptions& operator=(const IUSDImportOptions& options);
+
+    /**
+     * \brief Gets the currently configured stage mask paths. Only USD prims at or below these paths
+     * will be imported.
+     * \return The mask paths.
+     */
+    Tab<const wchar_t*> GetStageMaskPaths() const;
+
+    /**
+     * \brief Sets the stage mask's paths. Only USD prims at or below these paths will be imported.
+     * \param value The mask paths.
+     */
+    void SetStageMaskPaths(Tab<const wchar_t*> value);
+
+    /**
+     * \brief Gets the list of MaxUsd::MetaData::MetaDataType that will be included during import.
+     * \return The list of MaxUsd::MetaData::MetaDataType that will be included during import.
+     */
+    Tab<int> GetMetaDataIncludes() const;
+
+    /**
+     * \brief Sets the list of MaxUsd::MetaData::MetaDataType that will be included during import.
+     * \param value The list of MaxUsd::MetaData::MetaDataType that will be included during import.
+     */
+    void SetMetaDataIncludes(Tab<int> value);
+
+    /**
+     * \brief Sets the time mode that will be used by when importing USD.
+     * \param value The new time mode value. ImportTimeMode::AllRange (0), ImportTimeMode::CustomRange (1),
+     * ImportTimeMode::StartTime (2) or ImportTimeMode::EndTime (3)
+     */
+    void SetTimeMode(int value);
+
+    /**
+     * \brief Gets the time mode that will be used when importing USD.
+     */
+    int GetTimeMode() const;
+
+    /**
+     * \brief Sets the USD Stage initial load set to use for the import of content into 3ds Max.
+     * \param The USD Stage initial load set to use for the import of content into 3ds Max.
+     */
+    void SetInitialLoadSet(int value);
+
+    /**
+     * \brief Gets the USD Stage initial load set to use for the import of content into 3ds Max.
+     * \return The USD Stage initial load set to use for the import of content into 3ds Max.
+     */
+    int GetInitialLoadSet();
+
+    /**
+     * \brief Sets defaults primvar to channels mappings.
+     */
+    void SetPrimvarChannelMappingDefaults();
+
+    /**
+     * \brief Gets whether or not to import unmapped primvars to available max channels.
+     * \return True if we should import unmapped primvars, false otherwise.
+     */
+    bool GetImportUnmappedPrimvars() const;
+
+    /**
+     * \brief Sets whether or not to import unmapped primvars to available max channels.
+     * \param importUnmappedPrimvars True if we should import unmapped primvars, false otherwise.
+     * \return
+     */
+    void SetImportUnmappedPrimvars(bool importUnmappedPrimvars);
+
+    /**
+     * \brief Sets a primvar to channel mapping.
+     * \param primvarName The name of the primvar.
+     * \param channel The channel this primvar should be imported to.
+     */
+    void SetPrimvarChannelMapping(const wchar_t* primvarName, Value* channel);
+
+    /**
+     * \brief Gets the channel to which a primvar maps to.
+     * \param primvarName The name of the primvar for which to retrieve the target channel.
+     * \return The target channel for this primvar.
+     */
+    Value* GetPrimvarChannel(const wchar_t* primvarName);
+
+    /**
+     * \brief Gets the list of all currently mapped primvars.
+     * \return The vector of primvar names to be filled.
+     */
+    Tab<const wchar_t*> GetMappedPrimvars() const;
+
+    /**
+     * \brief Checks if a primvar is currently mapped to a channel.
+     * \param primvarName The primvar to check.
+     * \return True if the primvar is mapped, false otherwise.
+     */
+    bool IsMappedPrimvar(const wchar_t* primvarName);
+
+    /**
+     * \brief Clears all primvar mappings.
+     */
+    void ClearMappedPrimvars();
+
+    /**
+     * \brief Serialize the options to a json string.
+     * \return A json formated string representing the options
+     */
+    const MCHAR* Serialize() const;
+
+// clang-format off
+    enum
+    {
+        fnIdGetStageMask, fnIdSetStageMask,
+        fnIdGetStartTimeCode, fnIdSetStartTimeCode,
+        fnIdGetEndTimeCode, fnIdSetEndTimeCode,
+        fnIdSetTimeMode, fnIdGetTimeMode,
+        fnIdGetInitialLoadSet, fnIdSetInitialLoadSet,
+        fnIdReset,
+        fnIdSetPrimvarChannelMappingDefaults,
+        fnIdSetPrimvarChannelMapping,
+        fnIdGetPrimvarChannel,
+        fnIdGetMappedPrimvars,
+        fnIdIsMappedPrimvar,
+        fnIdClearMappedPrimvars,
+        fnIdGetPreferredMaterial, fnIdSetPreferredMaterial,
+        fnIdGetShadingModes, fnIdSetShadingModes,
+        fnIdGetLogPath, fnIdSetLogPath,
+        fnIdGetLogLevel, fnIdSetLogLevel,
+        fnIdGetAvailableChasers,
+        fnIdGetChaserNames, fnIdSetChaserNames,
+        fnIdGetAllChaserArgs, fnIdSetAllChaserArgs,
+        fnIdGetContextNames, fnIdSetContextNames,
+        fnIdGetMetaDataIncludes, fnIdSetMetaDataIncludes,
+        fnIdGetImportUnmappedPrimvars, fnIdSetImportUnmappedPrimvars,
+        fnIdGetTranslateMaterials,
+        fnIdGetUseProgressBar, fnIdSetUseProgressBar,
+        fidSerialize
+    };
+
+    enum
+    {
+        eIdInitialLoadSet,
+        eIdLogLevel,
+        eIdMetaData,
+        eIdTimeMode,
+    };
+
+    BEGIN_FUNCTION_MAP
+        PROP_FNS(fnIdGetStageMask, GetStageMaskPaths, fnIdSetStageMask, SetStageMaskPaths, TYPE_STRING_TAB_BV);
+        PROP_FNS(fnIdGetMetaDataIncludes, GetMetaDataIncludes, fnIdSetMetaDataIncludes, SetMetaDataIncludes, TYPE_ENUM_TAB_BV);
+        PROP_FNS(fnIdGetStartTimeCode, GetStartTimeCode, fnIdSetStartTimeCode, SetStartTimeCode, TYPE_DOUBLE);
+        PROP_FNS(fnIdGetEndTimeCode, GetEndTimeCode, fnIdSetEndTimeCode, SetEndTimeCode, TYPE_DOUBLE);
+        PROP_FNS(fnIdGetTimeMode, GetTimeMode, fnIdSetTimeMode, SetTimeMode, TYPE_ENUM);
+        PROP_FNS(fnIdGetInitialLoadSet, GetInitialLoadSet, fnIdSetInitialLoadSet, SetInitialLoadSet, TYPE_ENUM);
+        PROP_FNS(fnIdGetLogPath, logInterface.GetLogPath, fnIdSetLogPath, logInterface.SetLogPath, TYPE_STRING);
+        PROP_FNS(fnIdGetLogLevel, logInterface.GetLogLevel, fnIdSetLogLevel, logInterface.SetLogLevel, TYPE_ENUM);
+        PROP_FNS(fnIdGetImportUnmappedPrimvars, GetImportUnmappedPrimvars, fnIdSetImportUnmappedPrimvars, SetImportUnmappedPrimvars, TYPE_BOOL);
+        PROP_FNS(fnIdGetPreferredMaterial, GetPreferredMaterial, fnIdSetPreferredMaterial, SetPreferredMaterial, TYPE_STRING);
+        PROP_FNS(fnIdGetShadingModes, GetShadingModes, fnIdSetShadingModes, SetShadingModes, TYPE_VALUE);
+        PROP_FNS(fnIdGetChaserNames, GetChaserNamesMxs, fnIdSetChaserNames, SetChaserNamesMxs, TYPE_TSTR_TAB_BV);
+        PROP_FNS(fnIdGetAllChaserArgs, GetAllChaserArgs, fnIdSetAllChaserArgs, SetAllChaserArgs, TYPE_VALUE);
+        PROP_FNS(fnIdGetContextNames, GetContextNamesMxs, fnIdSetContextNames, SetContextNamesMxs, TYPE_TSTR_TAB_BV);
+        PROP_FNS(fnIdGetUseProgressBar, GetUseProgressBar, fnIdSetUseProgressBar, SetUseProgressBar, TYPE_BOOL);
+        VFN_0(fnIdReset, SetDefaults);
+        FN_0(fnIdGetTranslateMaterials, TYPE_BOOL, GetTranslateMaterials)
+        VFN_0(fnIdSetPrimvarChannelMappingDefaults, SetPrimvarChannelMappingDefaults);
+        VFN_2(fnIdSetPrimvarChannelMapping, SetPrimvarChannelMapping, TYPE_STRING, TYPE_VALUE);
+        FN_1(fnIdGetPrimvarChannel, TYPE_VALUE, GetPrimvarChannel, TYPE_STRING);
+        FN_0(fnIdGetMappedPrimvars, TYPE_STRING_TAB_BV, GetMappedPrimvars);
+        FN_1(fnIdIsMappedPrimvar, TYPE_BOOL, IsMappedPrimvar, TYPE_STRING);
+        VFN_0(fnIdClearMappedPrimvars, ClearMappedPrimvars);
+        FN_0(fnIdGetAvailableChasers, TYPE_STRING_TAB_BV, GetAvailableChasers);
+        FN_0(fidSerialize, TYPE_STRING, Serialize);
+    END_FUNCTION_MAP
+// clang-format on
+private:
+    MaxUsd::IOLoggingMxsInterface logInterface { this };
+
+    /**
+     * Set the shading modes to use at import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * \param modes the Array of ShadingMode to use (#(#("useRegistry", "UsdPreviewSurface")))
+     */
+    void SetShadingModes(Value* shadingModesValue);
+    /**
+     * Get the shading modes to use at import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * \return the array of ShadingMode being use
+     */
+    Value* GetShadingModes();
+
+    /**
+     * \brief Sets the preferred conversion material to use for material import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * \param targetMaterial The preferred conversion material to use for material import
+     */
+    void SetPreferredMaterial(const wchar_t* targetMaterial);
+
+    /**
+     * \brief Gets the preferred conversion material set for material import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * \return The preferred conversion material set for material import
+     */
+    const wchar_t* GetPreferredMaterial() const;
+
+    /**
+     * \brief Gets the list of available import chaser from the ImportChaserRegistry
+     * \return All registered import chaser (names)
+     */
+    Tab<TSTR*> GetAvailableChasers() const;
+
+    /**
+     * \brief Sets the chaser list to use at import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (SetChaserNames) \param chaserArray The list of import chaser to call at import
+     */
+    void SetChaserNamesMxs(const Tab<TSTR*>& chaserArray);
+
+    /**
+     * \brief Gets the list of import chasers to be called at USD import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (GetChaserNames) \return All import chasers to be called at USD import
+     */
+    Tab<TSTR*> GetChaserNamesMxs() const;
+
+    /**
+     * \brief Sets the import chasers' arguments map
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (SetAllChaserArgs) \param chaserArgs a map of arguments ([chaser:[[key:value][...]]]) or
+     * using an array of arguments (#(chaser,key,value,chaser,key,value,...))
+     */
+    void SetAllChaserArgs(Value* chaserArgs);
+
+    /**
+     * \brief Gets the map of import chasers with their specified arguments
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (GetAllChaserArgs) \return The map of import chasers with their specified arguments
+     */
+    Value* GetAllChaserArgs();
+
+    /**
+     * \brief Sets the context list to use at import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (SetContextNames) \param contextArray The list of context to apply at import
+     */
+    void SetContextNamesMxs(const Tab<TSTR*>& contextArray);
+
+    /**
+     * \brief Gets the list of contexts (plug-in configurations) to be applied on USD import
+     * This is the maxscript exposed method from the MaxSceneBuilderOptions base class
+     * (GetContextNames) \return All contexts names to be applied on USD import
+     */
+    Tab<TSTR*> GetContextNamesMxs() const;
+
+    // maxscript value holder to prevent passed chaser arguments dictionary from being GC'ed
+    ValueHolderMember allChaserArgsMxsHolder;
+
+    // maxscript value holder to prevent passed shaderModes Array from being GC'ed
+    ValueHolderMember shadingModesMxsHolder;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Interfaces/IUSDStageProvider.h b/src/MaxUsd/Interfaces/IUSDStageProvider.h
new file mode 100644
index 0000000..e8ed33c
--- /dev/null
+++ b/src/MaxUsd/Interfaces/IUSDStageProvider.h
@@ -0,0 +1,122 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <ifnpub.h>
+#include <ref.h>
+
+enum
+{
+    fnIdReload,
+    fnIdSetRootLayer,
+    fnIdGetUsdPreviewSurfaceMaterials,
+    fnIdSetPrimvarChannelMappingDefaults,
+    fnIdSetPrimvarChannelMapping,
+    fnIdGetPrimvarChannel,
+    fnIdIsMappedPrimvar,
+    fnIdGetMappedPrimvars,
+    fnIdClearMappedPrimvars,
+    fnIdClearSessionLayer,
+    fnIdOpenInUsdExplorer,
+    fnIdCloseInUsdExplorer,
+    fnIdGenerateDrawModes
+};
+
+namespace MAXUSD_NS_DEF {
+
+/// ID if the USD I/O operation interface.
+#define IUSDStageProvider_ID Interface_ID(0x6be93509, 0x325e2773)
+
+// No way to assign an obviously unique value. Let's hope this one is.
+constexpr const auto REFMSG__IUSDSTAGEPROVIDER_MSGBASE = REFMSG_USER + 9560;
+constexpr const auto REFMSG_IUSDSTAGEPROVIDER_STAGE_CHANGED = REFMSG__IUSDSTAGEPROVIDER_MSGBASE + 1;
+
+/**
+ * \brief Exposes an interface for proxies able to provide a USDStage
+ */
+class IUSDStageProvider : public FPMixinInterface
+{
+public:
+    // Function Publishing System
+    // Function Map For Mixin Interface
+    //*************************************************
+    BEGIN_FUNCTION_MAP
+    VFN_0(fnIdReload, Reload);
+    VFN_0(fnIdClearSessionLayer, ClearSessionLayer);
+    VFN_0(fnIdOpenInUsdExplorer, OpenInUsdExplorer);
+    VFN_0(fnIdCloseInUsdExplorer, CloseInUsdExplorer);
+    VFN_3(fnIdSetRootLayer, SetRootLayerMXS, TYPE_STRING, TYPE_STRING, TYPE_BOOL);
+    FN_1(fnIdGetUsdPreviewSurfaceMaterials, TYPE_MTL, GetUsdPreviewSurfaceMaterials, TYPE_BOOL);
+    VFN_0(fnIdSetPrimvarChannelMappingDefaults, SetPrimvarChannelMappingDefaults);
+    VFN_2(fnIdSetPrimvarChannelMapping, SetPrimvarChannelMapping, TYPE_STRING, TYPE_VALUE);
+    FN_1(fnIdGetPrimvarChannel, TYPE_VALUE, GetPrimvarChannel, TYPE_STRING);
+    FN_0(fnIdGetMappedPrimvars, TYPE_STRING_TAB_BV, GetMappedPrimvars);
+    FN_1(fnIdIsMappedPrimvar, TYPE_BOOL, IsMappedPrimvar, TYPE_STRING);
+    VFN_0(fnIdClearMappedPrimvars, ClearMappedPrimvars);
+    VFN_0(fnIdGenerateDrawModes, GenerateDrawModes);
+    END_FUNCTION_MAP
+
+    /// Return a weak pointer to the stage held by this provider.
+    virtual pxr::UsdStageWeakPtr GetUSDStage() const = 0;
+
+    /// Reload all layers of the stage held by this provider.
+    virtual void Reload() = 0;
+
+    /// Clear the session layer of the stage held by this provider.
+    virtual void ClearSessionLayer() = 0;
+
+    /// Open the stage in the USD Explorer.
+    virtual void OpenInUsdExplorer() = 0;
+
+    /// Close the stage in the USD Explorer.
+    virtual void CloseInUsdExplorer() = 0;
+
+    /// Set the root layer and mask of the stage held by this provider.
+    virtual void
+    SetRootLayer(const wchar_t* rootLayer, const wchar_t* stageMask, bool payloadsLoaded = true)
+        = 0;
+
+    /// Set the root layer and mask of the stage held by this provider. MXS function.
+    virtual void
+    SetRootLayerMXS(const wchar_t* rootLayer, const wchar_t* stageMask, bool payloadsLoaded)
+        = 0;
+
+    // Returns the multi-materials representing the UsdPreviewSurface materials in the stage.
+    virtual Mtl* GetUsdPreviewSurfaceMaterials(bool update) = 0;
+
+    // Sets defaults primvar to channels mappings.
+    virtual void SetPrimvarChannelMappingDefaults() = 0;
+
+    // Sets a primvar to channel mapping.
+    virtual void SetPrimvarChannelMapping(const wchar_t* primvarName, Value* channel) = 0;
+
+    // Gets the channel to which a primvar maps to.
+    virtual Value* GetPrimvarChannel(const wchar_t* primvarName) = 0;
+
+    // Gets the list of all currently mapped primvars.
+    virtual Tab<const wchar_t*> GetMappedPrimvars() const = 0;
+
+    // Checks if a primvar is currently mapped to a channel.
+    virtual bool IsMappedPrimvar(const wchar_t* primvarName) = 0;
+
+    // Clears all primvar mappings.
+    virtual void ClearMappedPrimvars() = 0;
+
+    // Generate USD Draw modes as configured.
+    virtual void GenerateDrawModes() = 0;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MappedAttributeBuilder.cpp b/src/MaxUsd/MappedAttributeBuilder.cpp
new file mode 100644
index 0000000..eae3e0c
--- /dev/null
+++ b/src/MaxUsd/MappedAttributeBuilder.cpp
@@ -0,0 +1,417 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MappedAttributeBuilder.h"
+
+#include "Utilities/Logging.h"
+#include "Utilities/MeshUtils.h"
+#include "Utilities/TranslationUtils.h"
+#include "Utilities/TypeUtils.h"
+#include "Utilities/VtDictionaryUtils.h"
+
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/vt/array.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/sdf/types.h>
+#include <pxr/usd/sdf/valueTypeName.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usdGeom/primvar.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <algorithm>
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdMappedAttributeBuilder, MAXUSD_MAPPED_ATTRIBUTE_BUILDER_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+using namespace pxr;
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Wrapper for float arrays of dimension 1, 2 or 3.
+ * Useful to reuse code when outputting to attributes of different dimensions.
+ */
+class FloatNArray
+{
+
+    size_t                             dimension;
+    std::unique_ptr<pxr::VtFloatArray> floatArray;
+    std::unique_ptr<pxr::VtVec2fArray> float2Array;
+    std::unique_ptr<pxr::VtVec3fArray> float3Array;
+
+public:
+    FloatNArray(size_t dimension, size_t initialSize) noexcept
+    {
+        // Clamp dimension between 1 and 3.
+        this->dimension = std::max(size_t(1), std::min(dimension, size_t(3)));
+        switch (dimension) {
+        case 1: floatArray = std::make_unique<pxr::VtFloatArray>(initialSize); break;
+        case 2: float2Array = std::make_unique<pxr::VtVec2fArray>(initialSize); break;
+        case 3: float3Array = std::make_unique<pxr::VtVec3fArray>(initialSize); break;
+        }
+    }
+
+    bool AssignToAttribute(pxr::UsdAttribute& attribute, pxr::UsdTimeCode timeCode) const
+    {
+        switch (dimension) {
+        case 1: return attribute.Set(*floatArray, timeCode);
+        case 2: return attribute.Set(*float2Array, timeCode);
+        case 3: return attribute.Set(*float3Array, timeCode);
+        }
+        return false;
+    }
+
+    void Set(size_t index, const Point3& p)
+    {
+        switch (dimension) {
+        case 1: (*floatArray)[index] = p.x; break;
+        case 2: (*float2Array)[index] = pxr::GfVec2f(p.x, p.y); break;
+        case 3: (*float3Array)[index] = pxr::GfVec3f(p.x, p.y, p.z); break;
+        }
+    }
+};
+
+const VtDictionary& MappedAttributeBuilder::Config::GetDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        defaultDict[MaxUsdMappedAttributeBuilder->version] = 1;
+        defaultDict[MaxUsdMappedAttributeBuilder->primvarName] = TfToken();
+        defaultDict[MaxUsdMappedAttributeBuilder->primvarType]
+            = static_cast<int>(Type::TexCoord2fArray);
+        defaultDict[MaxUsdMappedAttributeBuilder->autoExpandType] = false;
+    });
+
+    return defaultDict;
+}
+
+MappedAttributeBuilder::Config::Config(const pxr::VtDictionary& config) { options = config; }
+
+void MappedAttributeBuilder::Config::SetPrimvarName(const pxr::TfToken& primvarName)
+{
+    options[MaxUsdMappedAttributeBuilder->primvarName] = primvarName;
+}
+
+const pxr::TfToken& MappedAttributeBuilder::Config::GetPrimvarName() const
+{
+    return VtDictionaryGet<TfToken>(options, MaxUsdMappedAttributeBuilder->primvarName);
+}
+
+void MappedAttributeBuilder::Config::SetPrimvarType(const Type& type)
+{
+    options[MaxUsdMappedAttributeBuilder->primvarType] = static_cast<int>(type);
+}
+
+MappedAttributeBuilder::Type MappedAttributeBuilder::Config::GetPrimvarType() const
+{
+    return static_cast<Type>(
+        VtDictionaryGet<int>(options, MaxUsdMappedAttributeBuilder->primvarType));
+}
+
+void MappedAttributeBuilder::Config::SetAutoExpandType(bool autoExpandType)
+{
+    options[MaxUsdMappedAttributeBuilder->autoExpandType] = autoExpandType;
+}
+
+bool MappedAttributeBuilder::Config::IsAutoExpandType() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdMappedAttributeBuilder->autoExpandType);
+}
+
+MappedAttributeBuilder::MappedAttributeBuilder(
+    MeshFacade&                 maxMesh,
+    std::shared_ptr<MappedData> data)
+{
+    this->faceIndices = maxMesh.FaceIndices();
+    this->vertexCount = maxMesh.VertexCount();
+    this->mappedData = data;
+}
+
+MappedAttributeBuilder::DataLayout MappedAttributeBuilder::InferAttributeDataLayout() const
+{
+    // If the values are all identical, we can use constant interpolation.
+    // Check if all values are equal by comparing each value with the previous one.
+    const auto allValuesEqual = mappedData->GetDataCount() == 1
+        || std::equal(mappedData->GetData() + 1,
+                      mappedData->GetData() + mappedData->GetDataCount(),
+                      mappedData->GetData());
+    if (allValuesEqual) {
+        return DataLayout { pxr::UsdGeomTokens->constant, false };
+    }
+
+    const auto& faceDataIndices = *mappedData->GetFaceDataIndices();
+
+    if (faceIndices->size() != faceDataIndices.size()) {
+        DbgAssert(0 && "Map channel topology mismatch. Unable to infer layout.");
+        return DataLayout { pxr::UsdGeomTokens->faceVarying, true };
+    }
+
+    // If the number of mapped data is the same as the number of mapped data indices, we can assume
+    // right away that the interpolation is "face varying", and we will not be using an index
+    // (unless building one ourselves later on.)
+    if (mappedData->GetDataCount() == faceDataIndices.size()) {
+        return DataLayout { pxr::UsdGeomTokens->faceVarying, false };
+    }
+
+    // If the mapped data indices and vertex indices match perfectly, we can use vertex
+    // interpolation directly, without indexing.
+    const auto indicesAreEqual = std::equal(
+        faceDataIndices.begin(), faceDataIndices.end(), faceIndices->begin(), faceIndices->end());
+    if (indicesAreEqual) {
+        return DataLayout { pxr::UsdGeomTokens->vertex, false };
+    }
+
+    // Check if we can use vertex interpolation. For that, each vertex must be mapped
+    // to a unique piece of data.
+    std::unordered_map<int, int> vertexIdToDataId;
+    bool                         vertexInterpolation = true;
+    for (int i = 0; i < faceDataIndices.size(); ++i) {
+        auto index = (*faceIndices)[i];
+        if (faceDataIndices[i] == index) {
+            vertexIdToDataId[index] = faceDataIndices[i];
+            continue;
+        }
+        // The indices may not be in order...
+        auto it = vertexIdToDataId.find(index);
+        if (it == vertexIdToDataId.end()) {
+            vertexIdToDataId[index] = faceDataIndices[i];
+        } else {
+            // We got the same vertex mapped to different data. We cannot use vertex
+            // interpolation.
+            if (it->second != faceDataIndices[i]) {
+                vertexInterpolation = false;
+                break;
+            }
+        }
+    }
+
+    if (vertexInterpolation) {
+        // If using vertex interpolation and we have exactly the same amount of data and verties, we
+        // shouldn't need an index. Although the data will need to be reordered.
+        return DataLayout { pxr::UsdGeomTokens->vertex, mappedData->GetDataCount() != vertexCount };
+    }
+    return DataLayout { pxr::UsdGeomTokens->faceVarying, true };
+}
+
+pxr::SdfValueTypeName MappedAttributeBuilder::GetValueTypeName(const Type& type)
+{
+    switch (type) {
+    case Type::TexCoord2fArray: return pxr::SdfValueTypeNames->TexCoord2fArray;
+    case Type::TexCoord3fArray: return pxr::SdfValueTypeNames->TexCoord3fArray;
+    case Type::FloatArray: return pxr::SdfValueTypeNames->FloatArray;
+    case Type::Float2Array: return pxr::SdfValueTypeNames->Float2Array;
+    case Type::Float3Array: return pxr::SdfValueTypeNames->Float3Array;
+    case Type::Color3fArray: return pxr::SdfValueTypeNames->Color3fArray;
+    }
+    return pxr::SdfValueTypeNames->Float3Array;
+}
+
+size_t MappedAttributeBuilder::GetTypeDimension(const Type& type)
+{
+    const auto typeName = GetValueTypeName(type);
+    return MaxUsd::GetTypeDimension(typeName);
+}
+
+MappedAttributeBuilder::Type
+MappedAttributeBuilder::GetEquivalentType(const Type& type, int dimension)
+{
+    // Equivalent types for different dimensions. When no equivalent type exists, fallback to a
+    // floatN array. {type, {dimension1, dimension2, dimension3}}
+    static const std::map<Type, std::vector<Type>> equivalentTypes = {
+        { Type::FloatArray, { Type::FloatArray, Type::Float2Array, Type::Float3Array } },
+        { Type::Float2Array, { Type::FloatArray, Type::Float2Array, Type::Float3Array } },
+        { Type::Float3Array, { Type::FloatArray, Type::Float2Array, Type::Float3Array } },
+        { Type::TexCoord2fArray,
+          { Type::FloatArray, Type::TexCoord2fArray, Type::TexCoord3fArray } },
+        { Type::TexCoord3fArray,
+          { Type::FloatArray, Type::TexCoord2fArray, Type::TexCoord3fArray } },
+        { Type::Color3fArray, { Type::FloatArray, Type::Float2Array, Type::Color3fArray } },
+    };
+    // Clamp the dimension between 1 and 3.
+    const size_t clampedDimension = std::max(1, std::min(dimension, 3));
+    Type         resolvedType = Type::Float3Array;
+    if (equivalentTypes.find(type) != equivalentTypes.end()) {
+        resolvedType = type;
+    }
+    return equivalentTypes.at(resolvedType)[clampedDimension - 1];
+}
+
+bool MappedAttributeBuilder::BuildPrimvar(
+    pxr::UsdGeomMesh&       target,
+    const Config&           config,
+    const pxr::UsdTimeCode& timeCode,
+    bool                    animated) const
+{
+
+    // Inferring the data layout is costly and the result could change over the course of an
+    // animation. Always use faceVarying/indexed when exporting an animation.
+    DataLayout layout
+        = animated ? DataLayout(pxr::UsdGeomTokens->faceVarying, true) : InferAttributeDataLayout();
+
+    auto typeDimension = GetTypeDimension(config.GetPrimvarType());
+    // If autoExpandType is off, use the type directly, otherwise, check if the data fits.
+    // If not, use an equivalent higher dimension type.
+    Type primvarType = config.GetPrimvarType();
+    auto IsAlmostZero = [](float value) { return abs(value) < FLT_EPSILON; };
+    if (config.IsAutoExpandType() && typeDimension < 3) {
+        int requiredDimension = 1;
+        for (int i = 0; i < mappedData->GetDataCount(); i++) {
+            if (!IsAlmostZero(mappedData->GetData()[i].z)) {
+                requiredDimension = 3;
+                break;
+            }
+            if (requiredDimension < 2 && !IsAlmostZero(mappedData->GetData()[i].y)) {
+                requiredDimension = 2;
+            }
+        }
+        if (requiredDimension > typeDimension) {
+            primvarType = GetEquivalentType(config.GetPrimvarType(), requiredDimension);
+        }
+    }
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(target).CreatePrimvar(
+        config.GetPrimvarName(), GetValueTypeName(primvarType), layout.GetInterpolation());
+
+    if (!primvar.IsDefined()) {
+        MaxUsd::Log::Error(
+            "Unable to create the primvar {0} on {1}. The given name may be a reserved keyword or "
+            "invalid.",
+            config.GetPrimvarName().data(),
+            target.GetPath().GetString());
+        return false;
+    }
+    auto attribute = primvar.GetAttr();
+    return PopulateAttribute(attribute, layout, &primvar, timeCode);
+}
+
+bool MappedAttributeBuilder::PopulateAttribute(
+    pxr::UsdAttribute&      attribute,
+    const DataLayout&       layout,
+    pxr::UsdGeomPrimvar*    primvar,
+    const pxr::UsdTimeCode& timeCode) const
+{
+    const auto& interpolation = layout.GetInterpolation();
+    const bool  indexed = layout.IsIndexed();
+
+    const auto dimension = MaxUsd::GetTypeDimension(attribute.GetTypeName());
+
+    if (interpolation == pxr::UsdGeomTokens->constant) {
+        // All values are the same...
+        FloatNArray values(dimension, 1);
+        values.Set(0, mappedData->GetData()[0]);
+        return values.AssignToAttribute(attribute, timeCode);
+    }
+
+    if (interpolation == pxr::UsdGeomTokens->faceVarying && !indexed) {
+        FloatNArray values(dimension, mappedData->GetDataCount());
+        for (int i = 0; i < mappedData->GetFaceDataIndices()->size(); ++i) {
+            const int index = (*mappedData->GetFaceDataIndices())[i];
+            values.Set(i, mappedData->GetData()[index]);
+        }
+        return values.AssignToAttribute(attribute, timeCode);
+    }
+
+    if (interpolation == pxr::UsdGeomTokens->vertex) {
+        // Use an ordered map, as we will want the mapped data indices ordered to match the
+        // vertices. Vertex index to mapped data index.
+        std::map<int, int> vertexIndexToDataIndex;
+        for (int i = 0; i < faceIndices->size(); ++i) {
+            vertexIndexToDataIndex[(*faceIndices)[i]] = (*mappedData->GetFaceDataIndices())[i];
+            if (vertexIndexToDataIndex.size() == vertexCount) {
+                break;
+            }
+        }
+
+        if (!indexed) {
+            FloatNArray values(dimension, mappedData->GetDataCount());
+            // Copy over the mapped data...
+            for (int i = 0; i < mappedData->GetDataCount(); ++i) {
+                values.Set(i, mappedData->GetData()[vertexIndexToDataIndex[i]]);
+            }
+            return values.AssignToAttribute(attribute, timeCode);
+        }
+
+        // Indexed as primvar
+        if (primvar != nullptr) {
+            pxr::VtIntArray mappedDataIndices;
+
+            // Add the primvar values in the same order. vertexIndexToDataIndex may have missing
+            // entries in case of unused vertices, make sure we still add a primvar value for every
+            // index.
+            int nextRequiredIndex = 0;
+
+            for (auto const& dataIndex : vertexIndexToDataIndex) {
+                while (dataIndex.first != nextRequiredIndex) {
+                    // Vertex at this index is not used, pad with data index 0.
+                    mappedDataIndices.push_back(0);
+                    nextRequiredIndex++;
+                }
+                mappedDataIndices.push_back(dataIndex.second);
+                nextRequiredIndex++;
+            }
+
+            while (nextRequiredIndex < vertexCount) {
+                // Vertex at this index is not used, pad with data index 0.
+                mappedDataIndices.push_back(0);
+                nextRequiredIndex++;
+            }
+
+            FloatNArray values(dimension, mappedData->GetDataCount());
+            // Copy the over the data...
+            for (int i = 0; i < mappedData->GetDataCount(); ++i) {
+                values.Set(i, mappedData->GetData()[i]);
+            }
+            return values.AssignToAttribute(attribute, timeCode)
+                && primvar->SetIndices(mappedDataIndices, timeCode);
+        }
+
+        // As attribute
+        // No indexing on attributes. Flatten to one data point per vertex and use the same order as
+        // vertex indices.
+        FloatNArray values(dimension, vertexIndexToDataIndex.size());
+        int         idx = 0;
+        for (auto const& dataIndex : vertexIndexToDataIndex) {
+            values.Set(idx++, mappedData->GetData()[dataIndex.second]);
+        }
+        return values.AssignToAttribute(attribute, timeCode);
+    }
+
+    // Primvar with face varying interpolation.
+    if (primvar != nullptr) {
+        FloatNArray values(dimension, mappedData->GetDataCount());
+        for (size_t i = 0; i < mappedData->GetDataCount(); ++i) {
+            values.Set(i, mappedData->GetData()[i]);
+        }
+        pxr::VtArray<int> mappedDataIndices(mappedData->GetFaceDataIndices()->size());
+        std::copy(
+            mappedData->GetFaceDataIndices()->begin(),
+            mappedData->GetFaceDataIndices()->end(),
+            mappedDataIndices.data());
+        return values.AssignToAttribute(attribute, timeCode)
+            && primvar->SetIndices(mappedDataIndices, timeCode);
+    }
+
+    // Attribute with face varying interpolation.
+    FloatNArray values(dimension, mappedData->GetFaceDataIndices()->size());
+    for (int i = 0; i < mappedData->GetFaceDataIndices()->size(); ++i) {
+        auto index = (*mappedData->GetFaceDataIndices())[i];
+        values.Set(i, mappedData->GetData()[index]);
+    }
+    return values.AssignToAttribute(attribute, timeCode);
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MappedAttributeBuilder.h b/src/MaxUsd/MappedAttributeBuilder.h
new file mode 100644
index 0000000..12bb344
--- /dev/null
+++ b/src/MaxUsd/MappedAttributeBuilder.h
@@ -0,0 +1,219 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#pragma warning(push)
+#pragma warning(disable : 4275) // non dll-interface class 'boost::python::api::object' used as base
+                                // for dll-interface struct 'boost::python::detail::list_base'
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/primvar.h>
+#pragma warning(pop)
+#include "MaxUSDAPI.h"
+#include "MeshConversion/MeshFacade.h"
+#include "Utilities/DictionaryOptionProvider.h"
+
+#include <pxr/base/tf/token.h>
+
+#include <MaxUsd.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define MAXUSD_MAPPED_ATTRIBUTE_BUILDER_TOKENS \
+	(version) \
+	(primvarName) \
+	(primvarType) \
+	(autoExpandType)
+// clang-format on
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdMappedAttributeBuilder,
+    MaxUSDAPI,
+    MAXUSD_MAPPED_ATTRIBUTE_BUILDER_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+class MappedAttributeBuilder
+{
+public:
+    enum class MaxUSDAPI Type
+    {
+        TexCoord2fArray,
+        TexCoord3fArray,
+        FloatArray,
+        Float2Array,
+        Float3Array,
+        Color3fArray,
+    };
+
+    class Config : public DictionaryOptionProvider
+    {
+    private:
+        void SetAutoExpandType(bool autoExpandType);
+        void SetPrimvarType(const Type& type);
+        // An empty primvar name means the associated channel will not be exported.
+        void                            SetPrimvarName(const pxr::TfToken& primvarName);
+        static const pxr::VtDictionary& GetDefaultDictionary();
+
+    public:
+        MaxUSDAPI Config() { options = GetDefaultDictionary(); }
+
+        MaxUSDAPI Config(const pxr::VtDictionary& config);
+
+        MaxUSDAPI Config(const pxr::TfToken& primvarName, Type type, bool autoExpandType = false)
+        {
+            options = GetDefaultDictionary();
+            SetPrimvarName(primvarName);
+            SetPrimvarType(type);
+            SetAutoExpandType(autoExpandType);
+        }
+
+        MaxUSDAPI bool operator==(const Config& config) const
+        {
+            return GetPrimvarName() == config.GetPrimvarName()
+                && GetPrimvarType() == config.GetPrimvarType()
+                && IsAutoExpandType() == config.IsAutoExpandType();
+        }
+        // An empty primvar name means the associated channel will not be exported.
+        MaxUSDAPI const pxr::TfToken& GetPrimvarName() const;
+        MaxUSDAPI Type                GetPrimvarType() const;
+        MaxUSDAPI bool                IsAutoExpandType() const;
+    };
+
+    class MappedData
+    {
+    private:
+        const Point3*                           data;
+        size_t                                  dataCount;
+        const std::shared_ptr<std::vector<int>> faceDataIndices;
+
+    public:
+        MappedData() = delete;
+        MaxUSDAPI explicit MappedData(
+            const Point3*                           data,
+            size_t                                  dataCount,
+            const std::shared_ptr<std::vector<int>> faceDataIndices)
+            : data(data)
+            , dataCount(dataCount)
+            , faceDataIndices(faceDataIndices)
+        {
+        }
+        MaxUSDAPI const Point3* GetData() const { return data; }
+        MaxUSDAPI const size_t  GetDataCount() const { return dataCount; }
+        MaxUSDAPI const std::shared_ptr<std::vector<int>> GetFaceDataIndices() const
+        {
+            return faceDataIndices;
+        }
+    };
+
+    class DataLayout
+    {
+    private:
+        pxr::TfToken interpolation;
+        bool         indexed;
+
+    public:
+        DataLayout() = delete;
+        MaxUSDAPI explicit DataLayout(const pxr::TfToken interpolation, bool indexed)
+            : interpolation(interpolation)
+            , indexed(indexed)
+        {
+        }
+        MaxUSDAPI const pxr::TfToken& GetInterpolation() const { return interpolation; }
+        MaxUSDAPI bool                IsIndexed() const { return indexed; }
+    };
+
+    /**
+     * \brief Constructor.
+     * \param maxMesh The max mesh on which the data is mapped.
+     * \param data The mapped data.
+     */
+    MaxUSDAPI MappedAttributeBuilder(MeshFacade& maxMesh, std::shared_ptr<MappedData> data);
+    /**
+     * \brief Constructor. This overload was added to allow passing a temporary MeshFacade as parameter.
+     */
+    MaxUSDAPI MappedAttributeBuilder(MeshFacade&& maxMesh, std::shared_ptr<MappedData> data)
+        : MappedAttributeBuilder(maxMesh, data)
+    {
+    }
+
+    /**
+     * \brief Creates a new primvar onto the target USD mesh and populate it with the the mapped data.
+     * \param target The target USD mesh where to create the new primvar.
+     * \param config The configuration for the new primvar.
+     * \param timeCode The timecode at which to set the data.
+     * \param animated Whether or not the primvar is intended to be animated.
+     * \return True on success, false otherwise.
+     */
+    MaxUSDAPI bool BuildPrimvar(
+        pxr::UsdGeomMesh&       target,
+        const Config&           config,
+        const pxr::UsdTimeCode& timeCode,
+        bool                    animated) const;
+
+    /**
+     * \brief Populates a given attribute with the mapped data.
+     * \param attribute The attribute to populate.
+     * \param primvar The primvar associated with the attribute, null if the attribute is not owned by a primvar.
+     * \param layout The data layout (interpolation scheme and whether indexing is used)
+     * \param timeCode The timecode at which to populate the attribute.
+     * \return True on success, false otherwise.
+     */
+    MaxUSDAPI bool PopulateAttribute(
+        pxr::UsdAttribute&      attribute,
+        const DataLayout&       layout,
+        pxr::UsdGeomPrimvar*    primvar,
+        const pxr::UsdTimeCode& timeCode) const;
+
+    /**
+     * \brief Infers the data layout i.e. the interpolation scheme and whether it should be indexed or not.
+     * \return The inferred data layout.
+     */
+    MaxUSDAPI DataLayout InferAttributeDataLayout() const;
+
+    /**
+     * \brief Returns the SdfValueTypeName associated with this type.
+     * \param type The type for which to get the name.
+     * \return The value type name.
+     */
+    static MaxUSDAPI pxr::SdfValueTypeName GetValueTypeName(const Type& type);
+
+    /**
+     * \brief Returns the dimension of the given type.
+     * \param type The type for which to get the dimension.
+     * \return The dimension of the type.
+     */
+    static MaxUSDAPI size_t GetTypeDimension(const Type& type);
+
+    /**
+     * \brief Returns a type equivalent to the given type for a given dimension. For example
+     * the equivalent to texcoord2farray for 3 dimensions would be texcoord3farray. When no
+     * direct equivalent exists, return a float array of the requested dimension. If an unkown type,
+     * fallback to float3Array.
+     * \param type The type for which to get an equivalent type.
+     * \param dimension The required dimension of the equivalent type. Should be 1, 2, or 3, any other value
+     * will be clamped in that range.
+     * \return The equivalent type in the given dimension.
+     */
+    static MaxUSDAPI Type GetEquivalentType(const Type& type, int dimension);
+
+private:
+    // Faces indices of the mesh.
+    std::shared_ptr<const std::vector<int>> faceIndices;
+    int                                     vertexCount;
+    std::shared_ptr<MappedData>             mappedData;
+};
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/MaterialConversion/MaterialConverter.cpp b/src/MaxUsd/MaterialConversion/MaterialConverter.cpp
new file mode 100644
index 0000000..2404417
--- /dev/null
+++ b/src/MaxUsd/MaterialConversion/MaterialConverter.cpp
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaterialConverter.h"
+
+#include <MaxUsd/Translators/ShadingModeExporterContext.h>
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+
+namespace MAXUSD_NS_DEF {
+
+pxr::UsdShadeMaterial MaterialConverter::ConvertToUSDMaterial(
+    Mtl*                           material,
+    const pxr::UsdStageRefPtr&     stage,
+    const std::string&             fileName,
+    bool                           isUSDZ,
+    const pxr::SdfPath&            targetPath,
+    const USDSceneBuilderOptions&  options,
+    const std::list<pxr::SdfPath>& bindings)
+{
+    PXR_NAMESPACE_USING_DIRECTIVE
+
+    if (material->IsMultiMtl()) {
+        return UsdShadeMaterial {};
+    }
+
+    // Find & build a material exporter from the shading mode in the options.
+    const auto exporterCreator = MaxUsdShadingModeRegistry::GetInstance().GetExporter(
+        pxr::TfToken(options.GetShadingMode()));
+    if (!TF_VERIFY(exporterCreator != nullptr)) {
+        return UsdShadeMaterial {};
+    }
+    const auto exporter = exporterCreator();
+
+    // Setup the write job context and shading mode context for the export.
+    MaxUsdWriteJobContext          writeJobCtx { stage, fileName, options, isUSDZ };
+    MaxUsdShadingModeExportContext shadingModeCtx(writeJobCtx);
+    shadingModeCtx.SetMaterialAndBindings(material, &bindings);
+
+    // Export the material.
+    UsdShadeMaterial usdShadeMaterial;
+    exporter->Export(shadingModeCtx, &usdShadeMaterial, nullptr, targetPath);
+    return usdShadeMaterial;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/MaterialConversion/MaterialConverter.h b/src/MaxUsd/MaterialConversion/MaterialConverter.h
new file mode 100644
index 0000000..d70f7b4
--- /dev/null
+++ b/src/MaxUsd/MaterialConversion/MaterialConverter.h
@@ -0,0 +1,51 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usdShade/material.h>
+
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+
+/// Material Conversion utility Class
+class MaxUSDAPI MaterialConverter
+{
+public:
+    /**
+     * \brief Converts a 3dsMax material to a UsdShade material. Note that MultiMtls are not supported at this time.
+     * \param material The 3dsMax material to export.
+     * \param stage The stage we are exporting this material to.
+     * \param fileName The path of the layer we are exporting this material to, might be used for computing relative paths.
+     * \param isUSDZ True if the target layer is intended to be packaged into a USDZ file.
+     * \param targetPath The prim path to export the material to.
+     * \param options The export options.
+     * \param bindings Prim paths to bind the material to, optional.
+     * \return The UsdShadeMaterial that was exporter, invalid if the export failed.
+     */
+    static pxr::UsdShadeMaterial ConvertToUSDMaterial(
+        Mtl*                           material,
+        const pxr::UsdStageRefPtr&     stage,
+        const std::string&             fileName,
+        bool                           isUSDZ,
+        const pxr::SdfPath&            targetPath,
+        const USDSceneBuilderOptions&  options,
+        const std::list<pxr::SdfPath>& bindings);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/MaxTokens.cpp b/src/MaxUsd/MaxTokens.cpp
new file mode 100644
index 0000000..761706c
--- /dev/null
+++ b/src/MaxUsd/MaxTokens.cpp
@@ -0,0 +1,28 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxTokens.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdPrimvarTokens, MAX_USD_PRIMVAR_TOKENS);
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdPrimTypeTokens, MAX_USD_PRIM_TYPE_TOKENS);
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdMetadataTokens, MAX_USD_METADATA_TOKENS);
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdUsdPreviewSurfaceTokens, MAX_USDPREVIEWSURFACE_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/MaxTokens.h b/src/MaxUsd/MaxTokens.h
new file mode 100644
index 0000000..8b9c69c
--- /dev/null
+++ b/src/MaxUsd/MaxTokens.h
@@ -0,0 +1,91 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUSDAPI.h"
+
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+
+#pragma once
+
+namespace MAXUSD_NS_DEF {
+namespace MetaData {
+const pxr::TfToken matId("3dsmax:matId");
+}
+} // namespace MAXUSD_NS_DEF
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+#define MAX_USD_METADATA_TOKENS \
+    (kind) \
+    (purpose) \
+    (hidden) \
+    (creator)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdMetadataTokens, MaxUSDAPI, MAX_USD_METADATA_TOKENS);
+
+// clang-format off
+#define MAX_USD_PRIMVAR_TOKENS \
+    (st) \
+    (uv) \
+    (mapShading) \
+    (vertexColor) \
+    (displayColor) \
+    (displayOpacity)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdPrimvarTokens, MaxUSDAPI, MAX_USD_PRIMVAR_TOKENS);
+
+// clang-format off
+#define MAX_USD_PRIM_TYPE_TOKENS \
+    (Xform) \
+    (DiskLight) \
+    (RectLight) \
+    (CylinderLight) \
+    (SphereLight) \
+    (DistantLight) \
+    (Camera) \
+    (Mesh) \
+    (BasisCurves) \
+    (SkelRoot) \
+    (Skeleton) \
+    (Over) \
+    (Class)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdPrimTypeTokens, MaxUSDAPI, MAX_USD_PRIM_TYPE_TOKENS);
+
+// clang-format off
+#define MAX_USDPREVIEWSURFACE_TOKENS \
+    (diffuseColor) \
+    (specularColor) \
+    (metallic) \
+    (normal) \
+    (occlusion) \
+    (emissiveColor) \
+    (opacity) \
+    (displacement) \
+    (ior) \
+    (clearcoat) \
+    (clearcoatRoughness) \
+    (roughness)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdUsdPreviewSurfaceTokens, MaxUSDAPI, MAX_USDPREVIEWSURFACE_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/MaxUSDAPI.h b/src/MaxUsd/MaxUSDAPI.h
new file mode 100644
index 0000000..4c1737a
--- /dev/null
+++ b/src/MaxUsd/MaxUSDAPI.h
@@ -0,0 +1,22 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#ifdef MAXUSD_EXPORTS
+#define MaxUSDAPI __declspec(dllexport)
+#else
+#define MaxUSDAPI __declspec(dllimport)
+#endif
\ No newline at end of file
diff --git a/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.cpp b/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.cpp
new file mode 100644
index 0000000..def0fd5
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.cpp
@@ -0,0 +1,192 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxMeshConversionOptions.h"
+
+#include "MeshConverter.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/VtDictionaryUtils.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdMaxMeshConversionOptions, MAXUSD_MAXMESH_CONVERSION_OPTIONS_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+using namespace MaxUsd;
+using namespace pxr;
+
+MaxMeshConversionOptions::MaxMeshConversionOptions() { SetDefaults(); }
+
+MaxMeshConversionOptions::MaxMeshConversionOptions(const VtDictionary& dict) { options = dict; }
+
+const VtDictionary& MaxMeshConversionOptions::GetDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        defaultDict[MaxUsdMaxMeshConversionOptions->version] = 1;
+        defaultDict[MaxUsdMaxMeshConversionOptions->normalMode]
+            = static_cast<int>(NormalsMode::AsPrimvar);
+        defaultDict[MaxUsdMaxMeshConversionOptions->meshFormat]
+            = static_cast<int>(MeshFormat::FromScene);
+        defaultDict[MaxUsdMaxMeshConversionOptions->primvarLayoutInference]
+            = static_cast<int>(PrimvarLayoutInference::IfStatic);
+        defaultDict[MaxUsdMaxMeshConversionOptions->bakeObjectOffsetTransform] = true;
+        defaultDict[MaxUsdMaxMeshConversionOptions->preserveEdgeOrientation] = false;
+        defaultDict[MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig]
+            = GetDefaultChannelPrimvarMappings();
+    });
+
+    return defaultDict;
+}
+
+void MaxMeshConversionOptions::SetDefaults() { options = GetDefaultDictionary(); }
+
+const VtDictionary& MaxMeshConversionOptions::GetDefaultChannelPrimvarMappings()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+
+    std::call_once(once, []() {
+        // Lambda to create a primvar entry as a dictionary.
+        auto createPrimvarEntry = [](const TfToken&               primvarName,
+                                     MappedAttributeBuilder::Type primvarType,
+                                     bool                         autoExpandType) -> VtDictionary {
+            return VtDictionary {
+                { MaxUsdMappedAttributeBuilder->primvarName, VtValue(primvarName) },
+                { MaxUsdMappedAttributeBuilder->primvarType,
+                  VtValue(static_cast<int>(primvarType)) },
+                { MaxUsdMappedAttributeBuilder->autoExpandType, VtValue(autoExpandType) }
+            };
+        };
+
+        // -2 : Alpha channel
+        defaultDict[std::to_string(MAP_ALPHA)] = createPrimvarEntry(
+            MaxUsdPrimvarTokens->displayOpacity, MappedAttributeBuilder::Type::FloatArray, false);
+        // -1 : Shading channel.
+        defaultDict[std::to_string(MAP_SHADING)] = createPrimvarEntry(
+            MaxUsdPrimvarTokens->mapShading, MappedAttributeBuilder::Type::Color3fArray, false);
+        // 0 : Vertex color.
+        defaultDict["0"] = createPrimvarEntry(
+            MaxUsdPrimvarTokens->vertexColor, MappedAttributeBuilder::Type::Color3fArray, false);
+
+        const std::string primName = "st";
+        // 1-99 : st-st98
+        defaultDict["1"] = createPrimvarEntry(
+            TfToken(primName), MappedAttributeBuilder::Type::TexCoord2fArray, false);
+        for (int i = 2; i < MAX_MESHMAPS; i++) {
+            defaultDict[std::to_string(i)] = createPrimvarEntry(
+                TfToken(primName + std::to_string(i - 1)),
+                MappedAttributeBuilder::Type::TexCoord2fArray,
+                false);
+        }
+    });
+
+    return defaultDict;
+}
+
+void MaxMeshConversionOptions::SetDefaultChannelPrimvarMappings()
+{
+    SetChannelMappings(GetDefaultChannelPrimvarMappings());
+}
+
+const VtDictionary& MaxMeshConversionOptions::GetChannelMappings() const
+{
+    return VtDictionaryGet<VtDictionary>(
+        options, MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig);
+}
+
+void MaxMeshConversionOptions::SetChannelMappings(const VtDictionary& mappings)
+{
+    options.SetValueAtPath(
+        MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig, VtValue(mappings));
+}
+
+namespace {
+const std::string channelPrimvarConfigKey
+    = MaxUsdMaxMeshConversionOptions->channelToPrimvarConfig.GetString() + ":";
+}
+
+void MaxMeshConversionOptions::SetChannelPrimvarConfig(
+    int                                   channel,
+    const MappedAttributeBuilder::Config& config)
+{
+    options.SetValueAtPath(
+        channelPrimvarConfigKey + std::to_string(channel), VtValue(config.GetOptions()));
+}
+
+MappedAttributeBuilder::Config
+MaxMeshConversionOptions::GetChannelPrimvarConfig(int channelId) const
+{
+    auto val = options.GetValueAtPath(channelPrimvarConfigKey + std::to_string(channelId));
+    return { val->UncheckedGet<VtDictionary>() };
+}
+
+MaxMeshConversionOptions::NormalsMode MaxMeshConversionOptions::GetNormalMode() const
+{
+    return static_cast<NormalsMode>(
+        VtDictionaryGet<int>(options, MaxUsdMaxMeshConversionOptions->normalMode));
+}
+
+void MaxMeshConversionOptions::SetNormalsMode(NormalsMode normalMode)
+{
+    options[MaxUsdMaxMeshConversionOptions->normalMode] = static_cast<int>(normalMode);
+}
+
+MaxMeshConversionOptions::MeshFormat MaxMeshConversionOptions::GetMeshFormat() const
+{
+    return static_cast<MeshFormat>(
+        VtDictionaryGet<int>(options, MaxUsdMaxMeshConversionOptions->meshFormat));
+}
+
+void MaxMeshConversionOptions::SetMeshFormat(MeshFormat meshFormat)
+{
+    options[MaxUsdMaxMeshConversionOptions->meshFormat] = static_cast<int>(meshFormat);
+}
+
+MaxMeshConversionOptions::PrimvarLayoutInference
+MaxMeshConversionOptions::GetPrimvarLayoutInference() const
+{
+    return static_cast<PrimvarLayoutInference>(
+        VtDictionaryGet<int>(options, MaxUsdMaxMeshConversionOptions->primvarLayoutInference));
+}
+
+void MaxMeshConversionOptions::SetPrimvarLayoutInference(PrimvarLayoutInference layoutInference)
+{
+    options[MaxUsdMaxMeshConversionOptions->primvarLayoutInference]
+        = static_cast<int>(layoutInference);
+}
+
+void MaxMeshConversionOptions::SetBakeObjectOffsetTransform(bool bakeObjectOffset)
+{
+    options[MaxUsdMaxMeshConversionOptions->bakeObjectOffsetTransform] = bakeObjectOffset;
+}
+
+bool MaxMeshConversionOptions::GetBakeObjectOffsetTransform() const
+{
+    return VtDictionaryGet<bool>(
+        options, MaxUsdMaxMeshConversionOptions->bakeObjectOffsetTransform);
+}
+
+void MaxMeshConversionOptions::SetPreserveEdgeOrientation(bool preserve)
+{
+    options[MaxUsdMaxMeshConversionOptions->preserveEdgeOrientation] = preserve;
+}
+
+bool MaxMeshConversionOptions::GetPreserveEdgeOrientation() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdMaxMeshConversionOptions->preserveEdgeOrientation);
+}
diff --git a/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.h b/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.h
new file mode 100644
index 0000000..7e7903a
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MaxMeshConversionOptions.h
@@ -0,0 +1,203 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MappedAttributeBuilder.h>
+#include <MaxUsd/Utilities/DictionaryOptionProvider.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define MAXUSD_MAXMESH_CONVERSION_OPTIONS_TOKENS \
+	(version) \
+	(normalMode) \
+	(meshFormat) \
+	(bakeObjectOffsetTransform) \
+	(preserveEdgeOrientation) \
+	(channelToPrimvarConfig) \
+	(primvarLayoutInference)
+// clang-format on
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdMaxMeshConversionOptions,
+    MaxUSDAPI,
+    MAXUSD_MAXMESH_CONVERSION_OPTIONS_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+class MaxMeshConversionOptions : public DictionaryOptionProvider
+{
+public:
+    /**
+     * \brief Conversion mode for normals. Normals can either be exported as primvars, or as simple attributes.
+     * \comment value of enum is important as it reflects the index in the ui of qcombobox
+     */
+    enum class MaxUSDAPI NormalsMode
+    {
+        AsPrimvar = 0,
+        AsAttribute = 1,
+        None = 2
+    };
+
+    /**
+     * \brief Mesh format to be used when converting to USD. Meshes can either export as Polygonal meshes,
+     * Triangular meshes, or use the same format as in the scene (EditMesh -> Triangles, EditPoly ->
+     * Polys)
+     */
+    enum class MaxUSDAPI MeshFormat
+    {
+        FromScene = 0,
+        PolyMesh = 1,
+        TriMesh = 2
+    };
+
+    /**
+     * \brief Defines if layout inference should be done when converting a Mesh to Usd. When set to IfStatic, layout
+     * inference will be applied only if the mesh is not being animated over the selected export
+     * period.
+     */
+    enum class PrimvarLayoutInference
+    {
+        Never = 0,
+        IfStatic = 1
+    };
+
+    /**
+     * \brief Constructor.
+     */
+    MaxUSDAPI MaxMeshConversionOptions();
+
+    /**
+     * \brief Constructor.
+     * \param dict The dictionary to initialize the options from.
+     */
+    MaxUSDAPI MaxMeshConversionOptions(const pxr::VtDictionary& dict);
+
+    /**
+     * \brief Sets default mesh conversion options. This includes a call to SetDefaultChannelPrimvarMappings().
+     */
+    MaxUSDAPI void SetDefaults();
+
+    /**
+     * \brief Sets default channel to primvar mappings.
+     *		alpha -> "displayOpacity"
+     *		shading -> "mapShading"
+     *		vertex color -> "displayColor"
+     *		1-N -> mapN
+     */
+    MaxUSDAPI void SetDefaultChannelPrimvarMappings();
+
+    /**
+     * \brief Returns the default channel to primvar mappings.
+     * @return The dictionary containing the default channel to primvar mappings.
+     */
+    static MaxUSDAPI const pxr::VtDictionary& GetDefaultChannelPrimvarMappings();
+
+    /**
+     * \brief Returns the channel to primvar map.
+     * \return The mapping table.
+     */
+    MaxUSDAPI const pxr::VtDictionary& GetChannelMappings() const;
+
+    /**
+     * \brief Sets the channel to primvar map.
+     * \param mappings The mapping table.
+     */
+    MaxUSDAPI void SetChannelMappings(const pxr::VtDictionary& mappings);
+
+    /**
+     * \brief Gets the normal conversion mode.
+     * \return The normal conversion mode
+     */
+    MaxUSDAPI NormalsMode GetNormalMode() const;
+
+    /**
+     * \brief Sets the normal conversion mode.
+     * \param normalMode The normal mode to be set.
+     */
+    MaxUSDAPI void SetNormalsMode(NormalsMode normalMode);
+
+    /**
+     * \brief Gets the MeshFormat to be used.
+     * \return The mesh format.
+     */
+    MaxUSDAPI MeshFormat GetMeshFormat() const;
+
+    /**
+     * \brief Sets the mesh format to be used.
+     * \param meshFormat The mesh format to be set.
+     */
+    MaxUSDAPI void SetMeshFormat(MeshFormat meshFormat);
+
+    /**
+     * \brief Gets how the layout inference should be applied when exporting a mesh.
+     * \return The layout inference to be used when exporting a mesh
+     */
+    MaxUSDAPI PrimvarLayoutInference GetPrimvarLayoutInference() const;
+
+    /**
+     * \brief Sets the layout inference to be used when exporting a mesh.
+     * \param layoutInference the layout inference that will be used when exporting a mesh.
+     */
+    MaxUSDAPI void SetPrimvarLayoutInference(PrimvarLayoutInference layoutInference);
+
+    /**
+     * \brief  Sets whether or not the Object-offset transform should be baked into the geometry.
+     * Otherwise, an Xform will be used to represent the node transform's versus the offset.
+     * The object-offset transform is the offset of the object from the node it is attached too.
+     * \param bakeObjectOffset True if we should bake the transform, false otherwise.
+     */
+    MaxUSDAPI void SetBakeObjectOffsetTransform(bool bakeObjectOffset);
+
+    /**
+     * \brief Gets whether or not the Object-offset transform should be baked into the geometry.
+     * \return True if object offset transform are baked, false otherwise.
+     */
+    MaxUSDAPI bool GetBakeObjectOffsetTransform() const;
+
+    /**
+     * \brief  Sets whether or not to preserve max edge orientation.
+     * \param preserve True if we should preserve the edge orientation, false otherwise.
+     */
+    MaxUSDAPI void SetPreserveEdgeOrientation(bool preserve);
+
+    /**
+     * \brief Gets whether or not to preserve max edge orientation.
+     * \return True if we should preserve the edge orientation, false otherwise.
+     */
+    MaxUSDAPI bool GetPreserveEdgeOrientation() const;
+
+    /**
+     * \brief Configures a channel to primvar mapping. The specified channel will be exported using the given
+     * configuration - essentially a target primvar name and a type.
+     * \param channel The channel to configure.
+     * \param config The configuration to use when exporting the given channel to a primvar. It is possible to
+     * specify we do not want this channel exported by specifying an empty target primvar name.
+     */
+    MaxUSDAPI void
+    SetChannelPrimvarConfig(int channel, const MappedAttributeBuilder::Config& config);
+
+    /**
+     * \brief Returns the primvar configuration for the specified channel.
+     * \param channelId The channel
+     * \return The primvar configuration.
+     */
+    MaxUSDAPI MappedAttributeBuilder::Config GetChannelPrimvarConfig(int channelId) const;
+
+protected:
+    static const pxr::VtDictionary& GetDefaultDictionary();
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MeshConversion/MeshConverter.cpp b/src/MaxUsd/MeshConversion/MeshConverter.cpp
new file mode 100644
index 0000000..77fe1ea
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MeshConverter.cpp
@@ -0,0 +1,1341 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MeshConverter.h"
+
+#include "PrimvarMappingOptions.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/ChannelBuilder.h>
+#include <MaxUsd/MappedAttributeBuilder.h>
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Utilities/Logging.h>
+#include <MaxUsd/Utilities/MaterialUtils.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/Meshutils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/vt/array.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/sdf/types.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdGeom/xform.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <iparamb2.h>
+#include <mnmesh.h>
+#include <numeric>
+#include <plugapi.h>
+#include <polyobj.h>
+#include <stdmat.h>
+#include <triobj.h>
+
+namespace MAXUSD_NS_DEF {
+
+static const float MAX2USD_CREASE = 10.f;
+static const float USD2MAX_CREASE = 0.1f;
+
+pxr::UsdGeomMesh MeshConverter::ConvertToUSDMesh(
+    INode*                          node,
+    const pxr::UsdStagePtr&         stage,
+    const pxr::SdfPath&             path,
+    const MaxMeshConversionOptions& options,
+    bool                            applyOffsetTransform,
+    bool                            animated,
+    const ExportTime&               timeFrame)
+{
+    pxr::UsdGeomMesh usdMesh;
+
+    const auto usdTimeCode = timeFrame.GetUsdTime();
+
+    const auto& objectWS = node->EvalWorldState(timeFrame.GetMaxTime());
+    const auto  obj = objectWS.obj;
+
+    // The mesh we will effectively convert to a UsdGeomMesh.
+    // Use a facade to transparently deal with MNMesh an Mesh classes.
+    std::unique_ptr<MeshFacade> meshFacade = nullptr;
+
+    // If the object we are exporting to a UsdGeomMesh needs to be converted to an intermediary
+    // TriObject or PolyObject, that temporary will be held by this pointer. Needed so we can later
+    // delete it.
+    Object* temporaryObjectFromConvert = nullptr;
+
+    // Utility lamba, builds the MeshFacade from a tri mesh, while considering the specified mesh
+    // format. The passed mesh might get modified, so you should not pass the scene's mesh directly.
+    auto getMeshFacadeFromTri
+        = [](Mesh* mesh, bool ownMesh, bool convertToPoly) -> std::unique_ptr<MeshFacade> {
+        if (convertToPoly) {
+            MaxUsd::MeshUtils::SetupEdgeVisibility(*mesh, true);
+            MNMesh* polyMesh = new MNMesh {};
+            polyMesh->AddTri(*mesh);
+            polyMesh->FillInMesh();
+            polyMesh->EliminateBadVerts();
+            polyMesh->MakePolyMesh(0, false);
+            if (ownMesh) {
+                delete mesh;
+            }
+            return std::make_unique<MeshFacade>(
+                polyMesh, true); // Facade will be in charge of deleting the polyMesh.
+        }
+        return std::make_unique<MeshFacade>(mesh, ownMesh);
+    };
+
+    // Figure out if the object we are trying to convert to a mesh is already a TriObject or a
+    // PolyObject...
+    const auto originalTriObject = dynamic_cast<TriObject*>(obj);
+    const auto originalPolyObject = dynamic_cast<PolyObject*>(obj);
+
+    // We'll use the object channel validity intervals to limit what we export on the meshes.
+    ObjectChannelIntervals channelIntervals;
+
+    const auto meshFormat = options.GetMeshFormat();
+    const bool convertToPoly = meshFormat == MaxMeshConversionOptions::MeshFormat::PolyMesh;
+
+    // Lambda to get geom channels validity intervals for exported TriObjects.
+    // If we are converting to poly at export time, we can only use instant validity intervals.
+    // Indeed, the geom channels intervals can't be used, as the converted topology can vary frame
+    // to frame independently from the source topology. Prior to conversion to poly, for the purpose
+    // of export, we show edges between triangles that are not coplanar, this is to avoid bad
+    // looking results with curved faces. The result of that operation can change as the mesh is
+    // animated - making max's intervals meaningless.
+    auto getIntervalsForTriObject = [&convertToPoly, &timeFrame](TriObject* triObject) {
+        if (convertToPoly) {
+            return GetInstantChannelIntervals(timeFrame.GetMaxTime());
+        }
+        return GetObjectChannelIntervals(triObject, timeFrame.GetMaxTime());
+    };
+
+    // If the object is a TriObject, build an MNMesh from its Mesh.
+    if (originalTriObject) {
+        meshFacade
+            = getMeshFacadeFromTri(new Mesh { originalTriObject->GetMesh() }, true, convertToPoly);
+        channelIntervals = getIntervalsForTriObject(originalTriObject);
+    }
+    // Some object types do not translate directly to PolyObjects. In those cases we just go through
+    // TriObjects.
+    else if (
+        !obj->CanConvertToType(Class_ID(POLYOBJ_CLASS_ID, 0))
+        && obj->CanConvertToType(Class_ID(TRIOBJ_CLASS_ID, 0))) {
+        const auto triObjectCopy = static_cast<TriObject*>(
+            obj->ConvertToType(timeFrame.GetMaxTime(), Class_ID(TRIOBJ_CLASS_ID, 0)));
+
+        meshFacade = getMeshFacadeFromTri(&triObjectCopy->GetMesh(), false, convertToPoly);
+        temporaryObjectFromConvert = triObjectCopy;
+        channelIntervals = getIntervalsForTriObject(triObjectCopy);
+    }
+    // If the object is a PolyObject, make a copy of its MNMesh.
+    else if (originalPolyObject) {
+        channelIntervals = GetObjectChannelIntervals(originalPolyObject, timeFrame.GetMaxTime());
+        meshFacade
+            = std::make_unique<MeshFacade>(new MNMesh { originalPolyObject->GetMesh() }, true);
+    }
+    // Otherwise, check if the object can be converted to a PolyObject.
+    else if (obj->CanConvertToType(Class_ID(POLYOBJ_CLASS_ID, 0))) {
+        const auto polyObj = static_cast<PolyObject*>(
+            obj->ConvertToType(timeFrame.GetMaxTime(), Class_ID(POLYOBJ_CLASS_ID, 0)));
+
+        channelIntervals = GetObjectChannelIntervals(polyObj, timeFrame.GetMaxTime());
+        meshFacade = std::make_unique<MeshFacade>(&polyObj->GetMesh(), false);
+        temporaryObjectFromConvert = polyObj;
+    }
+
+    // Now ready to perform the actual conversion to USDGeomMesh.
+    if (meshFacade != nullptr) {
+        // Check if we need to triangulate if requested by the user.
+        if (options.GetMeshFormat() == MaxMeshConversionOptions::MeshFormat::TriMesh) {
+            meshFacade->Triangulate();
+        }
+
+        std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+        if (applyOffsetTransform) {
+            const bool wsmRequiresTransform
+                = MaxUsd::WsmRequiresTransformToLocalSpace(node, timeFrame.GetMaxTime());
+
+            // Bake the object offset if required. Note that if the object has a World Space
+            // Modifier applied, its transform is the identity, as the total transform, including
+            // the offset and the WSM, is already applied directly onto the geometry in world space.
+            if (!wsmRequiresTransform && options.GetBakeObjectOffsetTransform()) {
+                auto objectTransform = MaxUsd::GetMaxObjectOffsetTransform(node);
+                meshFacade->Transform(objectTransform);
+                ConvertToUSDMesh(
+                    *meshFacade,
+                    stage,
+                    path,
+                    options,
+                    usdMesh,
+                    usdTimeCode,
+                    materialIdToFacesMap,
+                    animated,
+                    channelIntervals);
+                pxr::UsdGeomXformable xformable(usdMesh.GetPrim());
+            } else {
+                // If a WSM is applied, move the geometry's points back into local space. So that
+                // with the transforms inherited from its hierarchy, the object will end up in the
+                // correct location on the USD side.
+                if (wsmRequiresTransform) {
+                    auto nodeTmInvert = node->GetNodeTM(timeFrame.GetMaxTime());
+                    nodeTmInvert.Invert();
+                    meshFacade->Transform(nodeTmInvert);
+                }
+                ConvertToUSDMesh(
+                    *meshFacade,
+                    stage,
+                    path,
+                    options,
+                    usdMesh,
+                    usdTimeCode,
+                    materialIdToFacesMap,
+                    animated,
+                    channelIntervals);
+            }
+        } else {
+            ConvertToUSDMesh(
+                *meshFacade,
+                stage,
+                path,
+                options,
+                usdMesh,
+                usdTimeCode,
+                materialIdToFacesMap,
+                animated,
+                channelIntervals);
+        }
+
+        // Apply materialIds at the specificed timecode. materialIds are exported at the same frames
+        // as topology. If topology was not exported at the current frame, no need to do anything.
+        if (!materialIdToFacesMap.empty()) {
+            ApplyMaxMaterialIDs(
+                node->GetMtl(), materialIdToFacesMap, usdMesh.GetPrim(), usdTimeCode);
+        }
+
+        {
+            // If the displayColor is not already authored, set it to the wireColor.
+            if (!usdMesh.GetDisplayColorAttr().IsAuthored()) {
+                Color             wireColor(node->GetWireColor());
+                pxr::VtVec3fArray usdDisplayColor
+                    = { pxr::GfVec3f(wireColor.r, wireColor.g, wireColor.b) };
+                usdMesh.CreateDisplayColorAttr().Set(usdDisplayColor);
+            }
+        }
+
+        // If the object is a temporary object from a conversion, need to delete it now.
+        if (temporaryObjectFromConvert) {
+            delete temporaryObjectFromConvert;
+        }
+    }
+
+    // If we need to setup the object transform as an Xform op, only do so once, when exporting
+    // the first frame of the mesh.
+    if (timeFrame.IsFirstFrame()) {
+        // Apply the offset transform as a Xform op on the mesh if not bakes.
+        // The object offset is not animatable.
+        if (applyOffsetTransform && !options.GetBakeObjectOffsetTransform()) {
+            pxr::UsdGeomXformable xformable(usdMesh.GetPrim());
+            MaxUsd::ApplyObjectOffsetTransform(node, xformable, timeFrame.GetMaxTime());
+        }
+    }
+    return usdMesh;
+}
+
+namespace {
+// Checks if a mesh attribute needs to be written out at a given timeCode, considering
+// the object channels it depends on.
+bool _checkWriteAttribute(
+    const pxr::UsdTimeCode&                      timeCode,
+    const std::vector<int>&&                     channels,
+    const pxr::UsdAttribute&                     attribute,
+    const MeshConverter::ObjectChannelIntervals& channelIntervals)
+{
+    // Intersect all the intervals of the channel dependencies.
+    Interval intersect = FOREVER;
+    for (const auto& channel : channels) {
+        // Do we already have an authored frame the attribute that is within the channel's
+        // validity interval?
+        const auto it = channelIntervals.find(channel);
+        if (it == channelIntervals.end()) {
+            // Fallback to always writing out the attribute.
+            return true;
+        }
+        intersect &= it->second;
+    }
+
+    // We always need to write the last sample of the interval, to make sure we interpolate
+    // to the same value on the USD side for any time within the interval.
+    if (MaxUsd::GetTimeValueFromFrame(timeCode.GetValue()) == intersect.End()) {
+        return true;
+    }
+
+    // Finally, check if we already have a sample within the validity interval. If so, we
+    // do not need to write a new sample..
+    std::vector<double> timeSamples;
+    const auto usdInterval = pxr::GfInterval { MaxUsd::GetFrameFromTimeValue(intersect.Start()),
+                                               MaxUsd::GetFrameFromTimeValue(intersect.End()) };
+
+    attribute.GetTimeSamplesInInterval(usdInterval, &timeSamples);
+
+    // Have a sample already in the interval? No need to write!
+    if (timeSamples.size() == 1) {
+        return false;
+    }
+    // If we have more than one sample in this interval, it means that at some previous
+    // frame, we decided to ignore the validity intervals (maybe we have to clean or sanitize
+    // the topology for the purpose of export). If we did, we can't rely on the object channel
+    // intervals any longer, need to write again.
+    if (timeSamples.size() > 1) {
+        return true;
+    }
+    return timeSamples.empty();
+};
+
+struct MeshInfo
+{
+    size_t              vertCount = 0;
+    size_t              faceCount = 0;
+    std::vector<size_t> mapVertCounts;
+    bool                operator!=(const MeshInfo& other) const
+    {
+        return (
+            vertCount != other.vertCount || faceCount != other.faceCount
+            || mapVertCounts != other.mapVertCounts);
+    }
+};
+
+MeshInfo _getMeshInfo(const MeshFacade& mesh)
+{
+    MeshInfo info;
+    info.faceCount = mesh.FaceCount();
+    info.vertCount = mesh.VertexCount();
+    info.mapVertCounts.reserve(mesh.MapCount() + NUM_HIDDENMAPS);
+    for (int map = -NUM_HIDDENMAPS; map < mesh.MapCount(); ++map) {
+        info.mapVertCounts.push_back(mesh.MapDataCount(map));
+    }
+    return info;
+}
+
+} // namespace
+
+void MeshConverter::ConvertToUSDMesh(
+    MeshFacade&                       maxMesh,
+    const pxr::UsdStagePtr&           stage,
+    const pxr::SdfPath&               path,
+    const MaxMeshConversionOptions&   options,
+    pxr::UsdGeomMesh&                 usdMesh,
+    const pxr::UsdTimeCode&           usdTime,
+    std::map<MtlID, pxr::VtIntArray>& materialIdToFacesMap,
+    bool                              animated,
+    const ObjectChannelIntervals&     channelIntervals)
+{
+    usdMesh
+        = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomMesh>(stage, path, pxr::MaxUsdPrimTypeTokens->Mesh);
+
+    // Local copy of the channel intervals.
+    auto intervals = channelIntervals;
+
+    // Some sanitization/cleanup of the polys.
+    {
+        // MakeConvex and MakePlanar can add new faces. If they do, and we are exporting an
+        // animation, we need to override the geom validity intervals, indeed, we dont know if these
+        // operations will behave the same at every frame.
+        auto beforeSanitize = maxMesh.FaceCount();
+
+        // The threshold here is defined as the cosinus of the max angle between planes.
+        // Dot products are being compared to this value (lower than).
+        // We want a tolerance of 0 degrees, cos(0) = 1.0.
+        if (options.GetPreserveEdgeOrientation()) {
+            maxMesh.MakePlanar(1.0f - FLT_EPSILON);
+        }
+        // Concave polys are a constant source of trouble. For tesselation, auto-computing normals,
+        // and other things... not only in Max, but also in the USD viewer. For now only export
+        // convex polys. This also prevents faces with holes.
+        maxMesh.MakeConvex();
+
+        auto afterSanitize = maxMesh.FaceCount();
+
+        // Clean any dead structures.
+        // This can impact the number of faces and the number of verts. If it actually does, we
+        // can't rely on the geom validity intervals any longer (see comment above for MakeConvex()
+        // / MakePlanar(), same idea).
+        auto beforeCleanup = _getMeshInfo(maxMesh);
+        maxMesh.Cleanup();
+        auto afterCleanup = _getMeshInfo(maxMesh);
+
+        // If the mesh was modified for export, we need to override the geom channel intervals.
+        // If exporting a single frame, we dont care about intervals.
+        if (animated) {
+            if (afterSanitize != beforeSanitize || beforeCleanup != afterCleanup) {
+                // Consider that all channels are only valid at the current time.
+                const auto timeVal = MaxUsd::GetTimeValueFromFrame(usdTime.GetValue());
+                const auto instantInterval = Interval(timeVal, timeVal);
+                for (auto& channel : intervals) {
+                    channel.second = instantInterval;
+                }
+            }
+        }
+    }
+
+    // Extent attribute - depends on the topology and geom object channels.
+    auto       extentAttr = usdMesh.CreateExtentAttr();
+    const auto writeExtent = !animated
+        || _checkWriteAttribute(usdTime, { TOPO_CHAN_NUM, GEOM_CHAN_NUM }, extentAttr, intervals);
+    if (writeExtent) {
+        const auto        bbox = maxMesh.BoundingBox();
+        pxr::VtVec3fArray extent
+            = { pxr::GfVec3f(ToUsd(bbox.Min())), pxr::GfVec3f(ToUsd(bbox.Max())) };
+        extentAttr.Set(extent, usdTime);
+    }
+
+    // Points attribute - depends on the geom object channel.
+    auto       pointAttr = usdMesh.CreatePointsAttr();
+    const auto writePoints
+        = !animated || _checkWriteAttribute(usdTime, { GEOM_CHAN_NUM }, pointAttr, intervals);
+    if (writePoints) {
+        // Points
+        pxr::VtVec3fArray points;
+        const auto        vertexCount = maxMesh.VertexCount();
+        points.reserve(vertexCount);
+        for (auto i = 0; i < vertexCount; ++i) {
+            const auto& vertex = maxMesh.Vertex(i);
+            points.push_back({ vertex.x, vertex.y, vertex.z });
+        }
+        usdMesh.CreatePointsAttr().Set(points, usdTime);
+    }
+
+    {
+        const auto faceVertexCountsAttr = usdMesh.CreateFaceVertexCountsAttr();
+        const auto faceVertexIndicesAttr = usdMesh.CreateFaceVertexIndicesAttr();
+
+        // FaceVertexCountsAttr/FaceVertexIndicesAttr depend on the topology channel.
+        // FaceVertexCountsAttr and FaceVertexIndicesAttr are always written out in pair. Only
+        // look at one of them.
+        const bool writeTopo = !animated
+            || _checkWriteAttribute(usdTime, { TOPO_CHAN_NUM }, faceVertexCountsAttr, intervals);
+        if (writeTopo) {
+            // Polygons && material Ids
+            const auto      faceCount = maxMesh.FaceCount();
+            pxr::VtIntArray faceVertexCount;
+            faceVertexCount.reserve(faceCount);
+
+            pxr::VtIntArray faceVertexIndices;
+
+            const auto faceVertexIndiceSize = maxMesh.FaceVertexIndicesCount();
+            faceVertexIndices.reserve(faceVertexIndiceSize);
+
+            for (auto i = 0; i < faceCount; ++i) {
+                const auto faceDeg = maxMesh.FaceDegree(i);
+                if (maxMesh.FaceIsDead(i) || faceDeg < 3) {
+                    continue;
+                }
+
+                faceVertexCount.push_back(faceDeg);
+                for (auto vi = 0; vi < faceDeg; ++vi) {
+                    const auto vert = maxMesh.FaceVertex(i, vi);
+                    faceVertexIndices.push_back(vert);
+                }
+
+                MtlID mtlId = maxMesh.FaceMaterial(i);
+                materialIdToFacesMap[mtlId].push_back(i);
+            }
+            faceVertexCountsAttr.Set(faceVertexCount, usdTime);
+            faceVertexIndicesAttr.Set(faceVertexIndices, usdTime);
+        }
+    }
+
+    ApplyMaxNormals(maxMesh, usdMesh, options, intervals, usdTime, animated);
+    ApplyMaxMapChannels(maxMesh, usdMesh, options, intervals, usdTime, animated);
+
+    if (maxMesh.HasCreaseSupport()) {
+        ApplyMaxVertCreases(maxMesh, usdMesh, usdTime);
+        ApplyMaxEdgeCreases(maxMesh, usdMesh, usdTime);
+    }
+}
+
+PolyObject* MeshConverter::ConvertToPolyObject(
+    const pxr::UsdGeomMesh&      mesh,
+    const PrimvarMappingOptions& options,
+    std::map<int, std::string>&  channelNames,
+    MultiMtl**                   geomSubsetsMaterial,
+    pxr::UsdTimeCode             timeCode,
+    bool                         cleanMesh)
+{
+    auto polyobj = static_cast<PolyObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, EPOLYOBJ_CLASS_ID));
+    ConvertToMNMesh(
+        mesh, polyobj->GetMesh(), options, channelNames, geomSubsetsMaterial, timeCode, cleanMesh);
+    return polyobj;
+}
+
+void MeshConverter::ConvertToMNMesh(
+    const pxr::UsdGeomMesh&      mesh,
+    MNMesh&                      maxMesh,
+    const PrimvarMappingOptions& options,
+    std::map<int, std::string>&  channelNames,
+    MultiMtl**                   geomsubSetsMaterial,
+    pxr::UsdTimeCode             timeCode,
+    bool                         cleanMesh)
+{
+    if (!mesh.GetPrim().IsValid())
+        return;
+    pxr::VtVec3fArray vertices;
+    mesh.GetPointsAttr().Get(&vertices, timeCode);
+    pxr::VtIntArray faceVertexCount;
+    mesh.GetFaceVertexCountsAttr().Get(&faceVertexCount, timeCode);
+    pxr::VtIntArray faceVertices;
+    mesh.GetFaceVertexIndicesAttr().Get(&faceVertices, timeCode);
+
+    if (vertices.empty() || faceVertexCount.empty() || faceVertices.empty()) {
+        return;
+    }
+
+    maxMesh.setNumVerts(int(vertices.size()));
+
+    // Do not consider faces with less than 3 vertices.
+    const auto numFaces
+        = std::accumulate(faceVertexCount.begin(), faceVertexCount.end(), 0, [](int total, int vc) {
+              return total + (vc < 3 ? 0 : 1);
+          });
+    if (numFaces == 0) {
+        return;
+    }
+    maxMesh.setNumFaces(numFaces);
+
+    pxr::TfToken orientation;
+    mesh.GetOrientationAttr().Get(&orientation, timeCode);
+
+    std::unordered_set<int> vertexIndicesUsedSet;
+    MNFace*                 faceIt = maxMesh.f;
+    std::for_each(
+        faceVertexCount.cbegin(),
+        faceVertexCount.cend(),
+        [&vertexIndicesUsedSet, &orientation, vertIt = faceVertices.cbegin(), faceIt](
+            auto numVertices) mutable {
+            if (numVertices < 3) {
+                vertIt += numVertices;
+                return;
+            }
+            auto& f(*faceIt++);
+            f.SetDeg(numVertices);
+            for (auto i = 0; i < numVertices; ++i) {
+                vertexIndicesUsedSet.insert(*vertIt);
+                f[i] = *vertIt++;
+            }
+            if (orientation == pxr::UsdGeomTokens->leftHanded) {
+                f.Flip();
+            }
+        });
+
+    for (int i = 0; i < vertices.size(); i++) {
+        auto m = MNVert();
+        m.p = Point3(vertices[i][0], vertices[i][1], vertices[i][2]);
+
+        if (vertexIndicesUsedSet.find(i) == vertexIndicesUsedSet.end()) {
+            m.SetFlag(MN_DEAD);
+        }
+
+        maxMesh.v[i] = m;
+    };
+
+    ApplyUSDNormals(mesh, maxMesh, timeCode);
+    ApplyUSDPrimvars(mesh, maxMesh, options, channelNames, timeCode);
+    ApplyUSDMaterialIDs(mesh.GetPrim(), maxMesh, timeCode, geomsubSetsMaterial);
+
+    maxMesh.FillInMesh();
+
+    ApplyUSDVertCreases(mesh, maxMesh, timeCode);
+    ApplyUSDEdgeCreases(mesh, maxMesh, timeCode);
+
+    const auto numUnusedVertices = maxMesh.VNum() - vertexIndicesUsedSet.size();
+    if (cleanMesh && numUnusedVertices > 0) {
+        maxMesh.CollapseDeadVerts();
+        MaxUsd::Log::Warn(
+            "{0} vertices were not imported from {1} because they were not part of any face.",
+            std::to_string(numUnusedVertices),
+            mesh.GetPrim().GetPath().GetString());
+    }
+}
+
+void MeshConverter::ApplyUSDNormals(
+    const pxr::UsdGeomMesh& mesh,
+    MNMesh&                 maxMesh,
+    pxr::UsdTimeCode        timeCode)
+{
+    const auto hasNormalsPrimvar = pxr::UsdGeomPrimvarsAPI(mesh.GetPrim())
+                                       .HasPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    // IsDefined() seems to always be true for that attribute. HasValue() is what we want instead.
+    const bool hasNormalsAttribute = mesh.GetNormalsAttr().HasValue();
+    if (!hasNormalsPrimvar && !hasNormalsAttribute) {
+        return;
+    }
+
+    std::unique_ptr<pxr::UsdGeomPrimvar> primvar;
+    pxr::TfToken                         interpolation;
+
+    pxr::UsdAttribute attribute;
+    // Primvar normals have precedence.
+    if (hasNormalsPrimvar) {
+        primvar = std::make_unique<pxr::UsdGeomPrimvar>(
+            pxr::UsdGeomPrimvarsAPI(mesh).GetPrimvar(pxr::UsdImagingTokens->primvarsNormals));
+        attribute = primvar->GetAttr();
+        interpolation = primvar->GetInterpolation();
+    }
+    // Normal attribute, never indexed.
+    else {
+        attribute = mesh.GetNormalsAttr();
+        interpolation = mesh.GetNormalsInterpolation();
+    }
+
+    pxr::TfToken orientation;
+    mesh.GetOrientationAttr().Get(&orientation, timeCode);
+
+    NormalsBuilder normalsBuilder(&maxMesh, orientation == pxr::UsdGeomTokens->leftHanded);
+    normalsBuilder.Build(attribute, interpolation, primvar.get(), mesh, timeCode);
+}
+bool MeshConverter::ApplyMaxNormals(
+    MeshFacade&                     maxMesh,
+    pxr::UsdGeomMesh&               mesh,
+    const MaxMeshConversionOptions& options,
+    const ObjectChannelIntervals&   channelIntervals,
+    pxr::UsdTimeCode                timeCode,
+    bool                            animated)
+{
+    if (options.GetNormalMode() == MaxMeshConversionOptions::NormalsMode::None) {
+        return false;
+    }
+
+    pxr::UsdAttribute                    normalsAttr;
+    std::unique_ptr<pxr::UsdGeomPrimvar> primvar;
+    if (options.GetNormalMode() == MaxMeshConversionOptions::NormalsMode::AsPrimvar) {
+        pxr::UsdGeomPrimvarsAPI primVarApi(mesh.GetPrim());
+        primvar = std::make_unique<pxr::UsdGeomPrimvar>(primVarApi.CreatePrimvar(
+            pxr::UsdImagingTokens->primvarsNormals, pxr::SdfValueTypeNames->Float3Array));
+        normalsAttr = primvar->GetAttr();
+    } else {
+        normalsAttr = mesh.GetNormalsAttr();
+    }
+
+    // Check if we need to write out normals at this time, given the concerned channels
+    // and previously exported times. Normals mostly depend on the geom channel, but normals
+    // have a complex history in 3dsMax, and so we "invalidate" them along with the topology
+    // channel also, to be safe.
+    if (animated
+        && !_checkWriteAttribute(
+            timeCode, { TOPO_CHAN_NUM, GEOM_CHAN_NUM }, normalsAttr, channelIntervals)) {
+        return false;
+    }
+
+    maxMesh.LoadNormals();
+
+    const auto normalCount = maxMesh.NormalCount();
+    if (normalCount == 0) {
+        return false;
+    }
+
+    // From the USD docs :
+    // "Normals should not be authored on a subdivided mesh, since subdivision algorithms define
+    // their own normals. They should only be authored for polygonal meshes."
+    mesh.CreateSubdivisionSchemeAttr(pxr::VtValue(pxr::UsdGeomTokens->none));
+
+    auto mappedData = std::make_shared<MappedAttributeBuilder::MappedData>(
+        maxMesh.NormalData(), normalCount, maxMesh.NormalIndices());
+
+    const MappedAttributeBuilder primvarConverter { maxMesh, mappedData };
+
+    // Inferring the data layout is costly and the result could change over the course of an
+    // animation. Always use faceVarying/indexed when exporting an animation.
+    MappedAttributeBuilder::DataLayout dataLayout = options.GetPrimvarLayoutInference()
+                == MaxMeshConversionOptions::PrimvarLayoutInference::Never
+            || animated
+        ? MappedAttributeBuilder::DataLayout(pxr::UsdGeomTokens->faceVarying, true)
+        : primvarConverter.InferAttributeDataLayout();
+
+    if (options.GetNormalMode() == MaxMeshConversionOptions::NormalsMode::AsPrimvar) {
+        primvar->SetInterpolation(dataLayout.GetInterpolation());
+    } else {
+        mesh.SetNormalsInterpolation(dataLayout.GetInterpolation());
+    }
+
+    return primvarConverter.PopulateAttribute(normalsAttr, dataLayout, primvar.get(), timeCode);
+}
+
+bool MeshConverter::ChannelToPrimvar(
+    MeshFacade&                           maxMesh,
+    int                                   channel,
+    pxr::UsdGeomMesh&                     mesh,
+    const MappedAttributeBuilder::Config& primvarConfig,
+    const ObjectChannelIntervals&         channelIntervals,
+    const pxr::UsdTimeCode&               timeCode,
+    bool                                  animated)
+{
+    // No target primvar set. Nothing to do.
+    if (primvarConfig.GetPrimvarName().IsEmpty()) {
+        return false;
+    }
+
+    const auto faceCount = maxMesh.MapFaceCount(channel);
+    if (faceCount == 0) {
+        return false;
+    }
+
+    // Check if we need to write the primvar at this time, given the concerned channels and
+    // previously exported times. Depending on when modifiers/tools were written, they may only
+    // deal one of the TEXMAP or VERT_COLOR channels - to be safe, we always intersect those two.
+    const auto primvar = pxr::UsdGeomPrimvarsAPI(mesh).GetPrimvar(primvarConfig.GetPrimvarName());
+    if (animated && primvar.IsDefined()
+        && !_checkWriteAttribute(
+            timeCode,
+            { TOPO_CHAN_NUM, TEXMAP_CHAN_NUM, VERT_COLOR_CHAN_NUM },
+            primvar.GetAttr(),
+            channelIntervals)) {
+        return false;
+    }
+
+    // flatten the face map indices.
+    auto faceMapIndices = std::make_shared<std::vector<int>>();
+    faceMapIndices->reserve(maxMesh.FaceVertexIndicesCount());
+
+    for (int i = 0; i < faceCount; ++i) {
+        const auto degree = maxMesh.MapFaceDegree(channel, i);
+        for (int j = 0; j < degree; ++j) {
+            faceMapIndices->push_back(maxMesh.MapFaceVertex(channel, i, j));
+        }
+    }
+
+    auto mappedData = std::make_shared<MappedAttributeBuilder::MappedData>(
+        maxMesh.MapData(channel), maxMesh.MapDataCount(channel), faceMapIndices);
+
+    MappedAttributeBuilder primvarBuilder(maxMesh, mappedData);
+    return primvarBuilder.BuildPrimvar(mesh, primvarConfig, timeCode, animated);
+}
+
+void MeshConverter::ApplyMaxMapChannels(
+    MeshFacade&                     maxMesh,
+    pxr::UsdGeomMesh&               mesh,
+    const MaxMeshConversionOptions& options,
+    const ObjectChannelIntervals&   channelIntervals,
+    pxr::UsdTimeCode                timeCode,
+    bool                            animated)
+{
+    for (int i = -NUM_HIDDENMAPS; i < maxMesh.MapCount(); ++i) {
+        // Fetch the config for this primvar.
+        const MappedAttributeBuilder::Config& primConfig = options.GetChannelPrimvarConfig(i);
+        ChannelToPrimvar(maxMesh, i, mesh, primConfig, channelIntervals, timeCode, animated);
+    }
+}
+
+void MeshConverter::ResolveChannelPrimvars(
+    const pxr::UsdGeomMesh&             mesh,
+    const PrimvarMappingOptions&        options,
+    std::map<int, pxr::UsdGeomPrimvar>& channelPrimvars)
+{
+    channelPrimvars.clear();
+    const auto&                     mappings = options.GetPrimvarMappings();
+    std::unordered_set<std::string> processedPrimvars;
+
+    // Note that the USD sdk returns the primvars in alphabetical order.
+    const auto allPrimvars = pxr::UsdGeomPrimvarsAPI(mesh).GetPrimvars();
+
+    // Start with the explicit mappings.
+    for (const auto& primvar : allPrimvars) {
+        const auto mappingIt = mappings.find(primvar.GetPrimvarName());
+        if (mappingIt == mappings.end()) {
+            continue;
+        }
+        auto channel = mappingIt->second.Get<int>();
+
+        processedPrimvars.insert(primvar.GetName());
+
+        // Check if the primvar was explicitely ignored for import.
+        if (channel == PrimvarMappingOptions::invalidChannel) {
+            continue;
+        }
+
+        // If the primvar is not defined for this mesh, or has no value, nothing to do.
+        if (!primvar.IsDefined() || !primvar.HasValue()) {
+            continue;
+        }
+
+        // Check that this Primvar can actually fit into a map channel.
+        const auto dimension = MaxUsd::GetTypeDimension(primvar.GetTypeName());
+        if (dimension > 4) {
+            MaxUsd::Log::Warn(
+                "{0} on {1} is of dimension {2} and cannot be imported to a 3dsMax channel.",
+                primvar.GetName().GetString(),
+                mesh.GetPath().GetString(),
+                dimension);
+            continue;
+        }
+
+        // We may get into a situation where we have a conflict. For example, by default, both map1
+        // and st are mapped to the main uv channel, i.e. channel 1. It is reasonnable to expect
+        // that these would be used on different meshes, but in cases they are both present on the
+        // same mesh, log a warning.
+        const auto it = channelPrimvars.find(channel);
+        if (it != channelPrimvars.end()) {
+            MaxUsd::Log::Warn(
+                "Found a Primvar/Channel mapping conflict when importing {0}. Channel {1} is "
+                "already "
+                "used by {2}, {3} will be skipped.",
+                mesh.GetPath().GetString(),
+                it->first,
+                it->second.GetPrimvarName().GetString(),
+                primvar.GetPrimvarName().GetString());
+            continue;
+        }
+
+        channelPrimvars[channel] = primvar;
+    }
+
+    if (!options.GetImportUnmappedPrimvars()) {
+        return;
+    }
+
+    // Next Import all remaining unmapped primvars of dimensions 1,2 and 3 into max channels the
+    // best we can. Channel 0 -> From Color3 primvars. Channel 1 -> From Texcoord primvars, or float
+    // if none. channels 2+ -> Remaining primvars, starting with texcoord primvars.
+
+    // Start by cleaning out some primvars we dont want to import, some well known primvars should
+    // not be loaded blindly into channels, primvar:normals for example.
+    std::vector<pxr::UsdGeomPrimvar> primvars;
+    for (const auto& primvar : allPrimvars) {
+        // Well known primvars, these are handled separately.
+        if (primvar.GetPrimvarName() == pxr::MaxUsdPrimvarTokens->displayOpacity
+            || primvar.GetPrimvarName() == pxr::MaxUsdPrimvarTokens->displayColor
+            || primvar.GetName() == pxr::UsdImagingTokens->primvarsNormals) {
+            continue;
+        }
+
+        // If a primvar can fit into a max channel, consider it. Note that primvars
+        // of dimension 4 can still be imported, but it needs to be specified explicitely,
+        // and it would trigger a warning because of the data-loss (4th dimension is lost).
+        const auto attr = primvar.GetAttr();
+        const auto dimension = MaxUsd::GetTypeDimension(attr.GetTypeName());
+        if (dimension > 3) {
+            continue;
+        }
+        pxr::VtValue values;
+        attr.Get(&values);
+        // Make sure the data can cast to floats, so that it can be loaded into max channels.
+        if (!values.CanCast<pxr::VtVec3fArray>() && !values.CanCast<pxr::VtVec2fArray>()
+            && !values.CanCast<pxr::VtFloatArray>()) {
+            continue;
+        }
+        primvars.push_back(primvar);
+    }
+
+    // Sort the primvars by type. As a general rule, we want to load UV (texcoord) primvars
+    // into the lower channels.
+    const auto getTypeOrder = [](const pxr::UsdGeomPrimvar& primvar) {
+        const auto typeName = primvar.GetTypeName();
+        if (typeName == pxr::SdfValueTypeNames->TexCoord2fArray)
+            return 1;
+        if (typeName == pxr::SdfValueTypeNames->TexCoord2dArray)
+            return 2;
+        if (typeName == pxr::SdfValueTypeNames->TexCoord2hArray)
+            return 3;
+        if (typeName == pxr::SdfValueTypeNames->TexCoord3fArray)
+            return 4;
+        if (typeName == pxr::SdfValueTypeNames->TexCoord3dArray)
+            return 5;
+        if (typeName == pxr::SdfValueTypeNames->TexCoord3hArray)
+            return 6;
+        // For other types, the order does not matter.
+        return 7;
+    };
+    std::sort(
+        primvars.begin(),
+        primvars.end(),
+        [&getTypeOrder](
+            const pxr::UsdGeomPrimvar& firstPrimvar, const pxr::UsdGeomPrimvar& secondPrimvar)
+            -> bool { return getTypeOrder(firstPrimvar) < getTypeOrder(secondPrimvar); });
+
+    // First look to infer the main UV channel, and the vertex color channel, from primvar types.
+    // Main UV channel -> First texCoord primvar found. Or first float2Array/double2Array if none.
+    // Vertex Color channel -> First color3 type primvar found.
+    pxr::UsdGeomPrimvar inferredUvPrimvar;
+    pxr::UsdGeomPrimvar inferredVertexColorPrimvar;
+    bool                texCoordUvFound = false;
+
+    const auto mainUvMapped = channelPrimvars.find(1) != channelPrimvars.end();
+    const auto vcMapped = channelPrimvars.find(0) != channelPrimvars.end();
+    if (!mainUvMapped || !vcMapped) {
+        for (const auto& primvar : primvars) {
+            // Can only use a primvars that were not already processed.
+            if (processedPrimvars.find(primvar.GetName()) != processedPrimvars.end()) {
+                continue;
+            }
+
+            if (!mainUvMapped && !texCoordUvFound) {
+                // If we find a texcoord type primvar, use that.
+                if (primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord2fArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord2dArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord2hArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord3fArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord3dArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->TexCoord3hArray) {
+                    inferredUvPrimvar = primvar;
+                    texCoordUvFound = true;
+                    // If we found both a texcoord UV primvar and the vertex color primvar we can
+                    // stop looping.
+                    if (inferredVertexColorPrimvar.IsDefined()) {
+                        break;
+                    }
+                    continue;
+                }
+                // If we find float, double or half array primvar, we can use it, but continue
+                // looping through the primvars in case a primvar of type texcoord exists.
+                if ((primvar.GetTypeName() == pxr::SdfValueTypeNames->Float2Array
+                     || primvar.GetTypeName() == pxr::SdfValueTypeNames->Double2Array
+                     || primvar.GetTypeName() == pxr::SdfValueTypeNames->Half2Array)
+                    && !inferredUvPrimvar.IsDefined()) {
+                    inferredUvPrimvar = primvar;
+                }
+            }
+
+            if (!vcMapped && !inferredVertexColorPrimvar.IsDefined()) {
+                // If we find a Color3 array primvar, use that.
+                if (primvar.GetTypeName() == pxr::SdfValueTypeNames->Color3fArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->Color3dArray
+                    || primvar.GetTypeName() == pxr::SdfValueTypeNames->Color3hArray) {
+                    inferredVertexColorPrimvar = primvar;
+                    // If we found both a texcoord UV primvar and the vertex color primvar we can
+                    // stop looping.
+                    if (texCoordUvFound) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        if (inferredUvPrimvar.IsDefined()) {
+            channelPrimvars[1] = inferredUvPrimvar;
+            processedPrimvars.insert(inferredUvPrimvar.GetName());
+            MaxUsd::Log::Info(
+                "No explicitly mapped primvar was found for the main UV channel (1) when importing "
+                "{0}, falling back to {1} of type {2}",
+                mesh.GetPath().GetString(),
+                inferredUvPrimvar.GetName().GetString(),
+                inferredUvPrimvar.GetTypeName().GetAsToken().GetString());
+        }
+
+        if (inferredVertexColorPrimvar.IsDefined()) {
+            channelPrimvars[0] = inferredVertexColorPrimvar;
+            processedPrimvars.insert(inferredVertexColorPrimvar.GetName());
+            MaxUsd::Log::Info(
+                "No explicitly mapped primvar was found for the main Vertex Color channel (0) when "
+                "importing "
+                "{0}, falling back to {1} of type {2}",
+                mesh.GetPath().GetString(),
+                inferredVertexColorPrimvar.GetName().GetString(),
+                inferredVertexColorPrimvar.GetTypeName().GetAsToken().GetString());
+        }
+    }
+
+    // Next, map any other primvars of dimensions 1,2 and 3 to the next available channels.
+    // We dont want to load any primvar into the main UV channel or the Vertex Color channel. If not
+    // mapped at this point, these will remain empty. Therefor, we start the search for the next
+    // empty channel to be used at 2.
+    int nextChannel = 2;
+    for (const auto& primvar : primvars) {
+        if (processedPrimvars.find(primvar.GetName()) != processedPrimvars.end()) {
+            continue;
+        }
+        // Primvars of dimension > 3 do not fit in max channels. They could still be explicitely
+        // mapped, but this causes warnings and data-loss.
+        const auto dimension = MaxUsd::GetTypeDimension(primvar.GetTypeName());
+        if (dimension > 3) {
+            continue;
+        }
+
+        // Find the next suitable channel.
+        while (channelPrimvars.find(nextChannel) != channelPrimvars.end()) {
+            nextChannel++;
+        }
+
+        MaxUsd::Log::Info(
+            "Importing unmapped primvar {0} on {1} to channel {2}.",
+            primvar.GetName().GetString(),
+            mesh.GetPath().GetString(),
+            nextChannel);
+
+        channelPrimvars[nextChannel++] = primvar;
+    }
+}
+
+void MeshConverter::ApplyUSDPrimvars(
+    const pxr::UsdGeomMesh&      usdMesh,
+    MNMesh&                      maxMesh,
+    const PrimvarMappingOptions& options,
+    std::map<int, std::string>&  channelNames,
+    const pxr::UsdTimeCode&      timeCode)
+{
+    // First figure out exactly how many channels we will be imported.
+    std::map<int, pxr::UsdGeomPrimvar> channelPrimvars;
+    ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+
+    pxr::TfToken orientation;
+    usdMesh.GetOrientationAttr().Get(&orientation, timeCode);
+    const bool leftHandedOrientation = orientation == pxr::UsdGeomTokens->leftHanded;
+    // Now ready to do the work!
+    channelNames.clear();
+    for (const auto& mapping : channelPrimvars) {
+        MapBuilder  builder(&maxMesh, mapping.first, leftHandedOrientation);
+        const auto& primvar = mapping.second;
+        if (!builder.Build(
+                primvar.GetAttr(), primvar.GetInterpolation(), &primvar, usdMesh, timeCode)) {
+            MaxUsd::Log::Info(
+                "Unable to import {0} into channel {1}.",
+                primvar.GetName().GetString(),
+                mapping.first);
+            continue;
+        }
+        channelNames.insert({ mapping.first, mapping.second.GetPrimvarName() });
+    }
+}
+
+void MeshConverter::ApplyMaxMaterialIDs(
+    Mtl*                                    mtl,
+    const std::map<MtlID, pxr::VtIntArray>& materialIdToFacesMap,
+    const pxr::UsdPrim&                     usdPrim,
+    const pxr::UsdTimeCode&                 timeCode)
+{
+    // if we only use one matId do not create subsets
+    if (materialIdToFacesMap.size() == 1) {
+        // offset the source mat id by one to match maxscript indexing and the max UI, and set is as
+        // metatdata to the USD prim.
+        int matId = materialIdToFacesMap.begin()->first + 1;
+        usdPrim.SetCustomDataByKey(MaxUsd::MetaData::matId, pxr::VtValue(matId));
+        return;
+    }
+
+    pxr::UsdShadeMaterialBindingAPI meshBindingAPI(usdPrim);
+    const auto                      existingSubsets = meshBindingAPI.GetMaterialBindSubsets();
+    bool                            createSubsets = existingSubsets.empty();
+    if (createSubsets) {
+        meshBindingAPI.SetMaterialBindSubsetsFamilyType(pxr::UsdGeomTokens->partition);
+    }
+
+    MaxUsd::UniqueNameGenerator subsetNameGenerator;
+
+    auto subsetIdx = 0;
+    for (const auto& it : materialIdToFacesMap) {
+        pxr::UsdGeomSubset subset;
+        // No subsets yet? Create them.
+        if (createSubsets) {
+            // Name it after the material.
+            std::string subsetName = MaterialUtils::CreateSubsetName(mtl, it.first);
+            subsetName = subsetNameGenerator.GetName(subsetName);
+
+            // API forces us to specify indices at the default time, but we don't want to, pass in
+            // an empty array, and then clear the attribute of it.
+            subset = meshBindingAPI.CreateMaterialBindSubset(pxr::TfToken(subsetName), {});
+            subset.GetIndicesAttr().Clear();
+
+            // Set the source matId in the prim's metadata.
+            // Offset the source mat id by one to match maxscript indexing and the max UI, and set
+            // is as metatdata to the USD subset.
+            subset.GetPrim().SetCustomDataByKey(
+                MaxUsd::MetaData::matId, pxr::VtValue(int(it.first) + 1));
+        } else {
+            subset = existingSubsets[subsetIdx];
+        }
+
+        // Finall, set the subset face indices.
+        subset.CreateIndicesAttr().Set(it.second, timeCode);
+        subsetIdx++;
+    }
+}
+
+void MeshConverter::ApplyMatIdToMesh(
+    const pxr::UsdGeomSubset& subset,
+    MNMesh&                   maxMesh,
+    int                       matId,
+    const pxr::UsdTimeCode&   timeCode)
+{
+    pxr::VtIntArray indices;
+    if (subset.GetIndicesAttr().Get(&indices, timeCode)) {
+        for (const auto it : indices) {
+            // Safeguard against bad data.
+            if (it <= maxMesh.FNum() - 1 && it >= 0) {
+                maxMesh.F(it)->material = matId;
+            }
+        }
+    }
+}
+
+int MeshConverter::GetMaterialIdFromCustomData(const pxr::UsdPrim& usdPrim)
+{
+    pxr::VtValue matIdVtValue = usdPrim.GetCustomDataByKey(MaxUsd::MetaData::matId);
+    if (!matIdVtValue.IsEmpty()) {
+        return matIdVtValue.Get<int>() - 1;
+    }
+    return -1;
+}
+
+void MeshConverter::ApplyUSDMaterialIDs(
+    const pxr::UsdPrim&     usdPrim,
+    MNMesh&                 maxMesh,
+    const pxr::UsdTimeCode& timeCode,
+    MultiMtl**              geomSubsetMaterial)
+{
+    // If the custom data for matId is on the prim itself it means all the faces have the same id.
+    int matId = GetMaterialIdFromCustomData(usdPrim);
+    if (matId >= 0) {
+        for (int i = 0; i < maxMesh.numf; ++i) {
+            maxMesh.F(i)->material = matId;
+        }
+        return;
+    }
+
+    pxr::UsdShadeMaterialBindingAPI meshBindingAPI(usdPrim);
+    std::vector<pxr::UsdGeomSubset> mtlBindSubsets = meshBindingAPI.GetMaterialBindSubsets();
+
+    const auto mtlCount = mtlBindSubsets.size();
+
+    if (mtlCount > 0) {
+        std::sort(
+            mtlBindSubsets.begin(),
+            mtlBindSubsets.end(),
+            [](const pxr::UsdGeomSubset& s1, const pxr::UsdGeomSubset& s2) {
+                return s1.GetPrim().GetName() < s2.GetPrim().GetName();
+            });
+
+        // Start by populating all the material ID for subset with custom data
+        std::map<int, std::string> matIdToGeomSubsetPrimNameMap;
+        std::vector<int>           subsetWithNoCustomDataIndexes;
+        for (int i = 0; i < mtlCount; i++) {
+            pxr::UsdGeomSubset subset = mtlBindSubsets[i];
+            matId = GetMaterialIdFromCustomData(subset.GetPrim());
+
+            if (matId >= 0) {
+                ApplyMatIdToMesh(subset, maxMesh, matId, timeCode);
+                matIdToGeomSubsetPrimNameMap[matId] = subset.GetPrim().GetName().GetString();
+                continue;
+            }
+
+            subsetWithNoCustomDataIndexes.push_back(i);
+        }
+
+        // If we have subset without custom data generate a matId and assign it to the face.
+        int matId = 0;
+        for (auto i : subsetWithNoCustomDataIndexes) {
+            pxr::UsdGeomSubset subset = mtlBindSubsets[i];
+            while (matIdToGeomSubsetPrimNameMap.find(matId) != matIdToGeomSubsetPrimNameMap.end()) {
+                matId++;
+            }
+            ApplyMatIdToMesh(subset, maxMesh, matId, timeCode);
+            matIdToGeomSubsetPrimNameMap[matId] = subset.GetPrim().GetName().GetString();
+        }
+
+        // Setup the geomSubsetMaterial material to enable material binding.
+        if (geomSubsetMaterial) {
+            auto& multiMaterial = *geomSubsetMaterial;
+            multiMaterial = NewDefaultMultiMtl();
+            multiMaterial->SetNumSubMtls(static_cast<int>(matIdToGeomSubsetPrimNameMap.size()));
+
+            IParamBlock2* mtlParamBlock2 = multiMaterial->GetParamBlockByID(0);
+            short         paramId = MaxUsd::FindParamId(mtlParamBlock2, L"materialIDList");
+            if (paramId < 0) {
+                MaxUsd::Log::Error(
+                    "Unable to find materialIDList param id on multiMaterial param block.");
+            } else {
+                int paramBlockTabIndex = 0;
+                for (const auto& matIdToSubsetMapIt : matIdToGeomSubsetPrimNameMap) {
+                    mtlParamBlock2->SetValue(
+                        paramId, 0, matIdToSubsetMapIt.first, paramBlockTabIndex);
+                    paramBlockTabIndex++;
+                    WStr slotName = MaxUsd::UsdStringToMaxString(matIdToSubsetMapIt.second);
+                    multiMaterial->SetSubMtlAndName(matIdToSubsetMapIt.first, nullptr, slotName);
+                }
+            }
+        }
+    }
+}
+
+void MeshConverter::ApplyMaxVertCreases(
+    MeshFacade&       maxMesh,
+    pxr::UsdGeomMesh& usdMesh,
+    pxr::UsdTimeCode  timeCode)
+{
+    const float* vCreaseData = maxMesh.VertexCreaseData();
+    if (!vCreaseData) {
+        return;
+    }
+
+    pxr::VtIntArray   cornerIndices;
+    pxr::VtFloatArray cornerSharpnesses;
+
+    // Copy the vertex creases into the proper data structures for export
+    for (int i = 0; i < maxMesh.VertexCount(); ++i) {
+        // Only consider non-zero creases
+        float creaseVal = MathUtils::clamp(vCreaseData[i], 0.f, 1.f);
+        if (!MathUtils::IsAlmostZero(creaseVal)) {
+            cornerIndices.push_back(i);
+            cornerSharpnesses.push_back(creaseVal * MAX2USD_CREASE);
+        }
+    }
+
+    if (!cornerIndices.empty()) {
+        usdMesh.CreateCornerIndicesAttr().Set(cornerIndices, timeCode);
+        usdMesh.CreateCornerSharpnessesAttr().Set(cornerSharpnesses, timeCode);
+    }
+}
+
+void MeshConverter::ApplyUSDVertCreases(
+    const pxr::UsdGeomMesh& usdMesh,
+    MNMesh&                 maxMesh,
+    pxr::UsdTimeCode        timeCode)
+{
+    pxr::VtIntArray cornerIndices;
+    usdMesh.GetCornerIndicesAttr().Get(&cornerIndices, timeCode);
+    pxr::VtFloatArray cornerSharpnesses;
+    usdMesh.GetCornerSharpnessesAttr().Get(&cornerSharpnesses, timeCode);
+
+    // Return if no crease
+    if (cornerIndices.size() == 0 || cornerSharpnesses.size() == 0) {
+        return;
+    }
+
+    // Make sure we can write crease data to proper vertex channel
+    float* vCreaseData = maxMesh.vertexFloat(VDATA_CREASE);
+    if (!vCreaseData) {
+        maxMesh.setVDataSupport(VDATA_CREASE);
+        vCreaseData = maxMesh.vertexFloat(VDATA_CREASE);
+        assert(vCreaseData);
+    }
+
+    // Warn and return if inconsistent data
+    if (cornerIndices.size() != cornerSharpnesses.size()) {
+        MaxUsd::Log::Warn(
+            "Vertex creasing data cannot be imported to 3ds Max because the data is inconsistent: "
+            "the sizes of {0} and {1} should be equal.",
+            usdMesh.GetCornerIndicesAttr().GetName().GetString(),
+            usdMesh.GetCornerSharpnessesAttr().GetName().GetString());
+        return;
+    }
+
+    // Apply creasing
+    for (size_t i = 0; i < cornerIndices.size(); ++i) {
+        int v = cornerIndices[i];
+        if (maxMesh.v[v].GetFlag(MN_DEAD)) {
+            continue;
+        }
+
+        // 3ds max only handles positive numbers between 0 and 1
+        // USD creases range from 0 to 10, anything above being perfectly sharp.
+        // So negative values with clamp to 0 and rescale all other values between 0 and 1
+        vCreaseData[v] = MaxUsd::MathUtils::clamp(cornerSharpnesses[i] * USD2MAX_CREASE, 0.f, 1.f);
+    }
+}
+
+void MeshConverter::ApplyMaxEdgeCreases(
+    MeshFacade&       maxMesh,
+    pxr::UsdGeomMesh& usdMesh,
+    pxr::UsdTimeCode  timeCode)
+{
+    const float* eCreaseData = maxMesh.EdgeCreaseData();
+    if (!eCreaseData) {
+        return;
+    }
+
+    // Copy the crease groups into the proper USD data structures for export
+    pxr::VtIntArray   creaseIndices;
+    pxr::VtIntArray   creaseLengths;
+    pxr::VtFloatArray creaseSharpnesses;
+
+    // Copy the edge creases into the proper data structures for export
+    for (int i = 0; i < maxMesh.EdgeCount(); ++i) {
+        // Only consider non-zero creases
+        float creaseVal = MathUtils::clamp(eCreaseData[i], 0.f, 1.f);
+        if (!MathUtils::IsAlmostZero(creaseVal)) {
+            creaseIndices.push_back(maxMesh.EdgeVertex(i, true));
+            creaseIndices.push_back(maxMesh.EdgeVertex(i, false));
+            creaseLengths.push_back(2);
+            creaseSharpnesses.push_back(creaseVal * MAX2USD_CREASE);
+        }
+    }
+
+    if (!creaseIndices.empty()) {
+        usdMesh.CreateCreaseIndicesAttr().Set(creaseIndices, timeCode);
+        usdMesh.CreateCreaseLengthsAttr().Set(creaseLengths, timeCode);
+        usdMesh.CreateCreaseSharpnessesAttr().Set(creaseSharpnesses, timeCode);
+    }
+}
+
+void MeshConverter::ApplyUSDEdgeCreases(
+    const pxr::UsdGeomMesh& usdMesh,
+    MNMesh&                 maxMesh,
+    pxr::UsdTimeCode        timeCode)
+{
+    pxr::VtIntArray creaseIndices;
+    usdMesh.GetCreaseIndicesAttr().Get(&creaseIndices, timeCode);
+    pxr::VtIntArray creaseLengths;
+    usdMesh.GetCreaseLengthsAttr().Get(&creaseLengths, timeCode);
+    pxr::VtFloatArray creaseSharpnesses;
+    usdMesh.GetCreaseSharpnessesAttr().Get(&creaseSharpnesses, timeCode);
+
+    // Return if no crease
+    if (creaseIndices.size() == 0 || creaseLengths.size() == 0 || creaseSharpnesses.size() == 0) {
+        return;
+    }
+
+    // Make sure we can write crease data to proper edge channel
+    float* eCreaseData = maxMesh.edgeFloat(EDATA_CREASE);
+    if (!eCreaseData) {
+        maxMesh.setEDataSupport(EDATA_CREASE);
+        eCreaseData = maxMesh.edgeFloat(EDATA_CREASE);
+        assert(eCreaseData);
+    }
+
+    // The sum of all crease groups should be the size of creaseIndices
+    // and the number of crease groups should be equal to the number of sharpnesses
+    // Warn and return if it isn't the case
+    int nbIndices = std::accumulate(creaseLengths.cbegin(), creaseLengths.cend(), 0);
+    if (creaseIndices.size() != nbIndices || creaseLengths.size() != creaseSharpnesses.size()) {
+        MaxUsd::Log::Warn(
+            "Edge creasing data cannot be imported to 3ds Max because the data is inconsistent: "
+            "the size of {0} should be the sum of all {1} and the sizes of {1} and {2} should be "
+            "equal.",
+            usdMesh.GetCreaseIndicesAttr().GetName().GetString(),
+            usdMesh.GetCreaseLengthsAttr().GetName().GetString(),
+            usdMesh.GetCornerSharpnessesAttr().GetName().GetString());
+        return;
+    }
+
+    // Apply creasing
+    unsigned int creaseIndexBase = 0;
+    for (size_t creaseGroup = 0; creaseGroup < creaseLengths.size();
+         creaseIndexBase += creaseLengths[creaseGroup++]) {
+        for (size_t i = 0; i < creaseLengths[creaseGroup] - 1; i++) {
+            int eIndex = maxMesh.FindEdgeFromVertToVert(
+                creaseIndices[creaseIndexBase + i], creaseIndices[creaseIndexBase + i + 1]);
+            if (eIndex >= 0 && eIndex < maxMesh.nume) {
+                if (maxMesh.e[eIndex].GetFlag(MN_DEAD)) {
+                    continue;
+                }
+
+                // 3ds max only handles positive numbers between 0 and 1
+                // USD creases range from 0 to 10, anything above being perfectly sharp.
+                // So negative values with clamp to 0 and rescale all other values between 0 and 1
+                eCreaseData[eIndex]
+                    = MathUtils::clamp(creaseSharpnesses[creaseGroup] * USD2MAX_CREASE, 0.f, 1.f);
+            }
+        }
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/MeshConversion/MeshConverter.h b/src/MaxUsd/MeshConversion/MeshConverter.h
new file mode 100644
index 0000000..913027c
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MeshConverter.h
@@ -0,0 +1,378 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MaxMeshConversionOptions.h"
+#include "MeshFacade.h"
+#include "PrimvarMappingOptions.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MappedAttributeBuilder.h>
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/subset.h>
+
+#include <polyobj.h>
+#include <stdmat.h>
+
+namespace MAXUSD_NS_DEF {
+
+/// MeshConverter Utility Class
+///
+/// Example of use:
+/// ```cpp
+/// spherePrim = maxUsd.MeshConverter.ConvertToUSDMesh(nodeHandle, stage, prim.GetPath(), opts,
+/// applyOffset)
+///	print("Write a Sphere as a USD Mesh prim!")
+/// ```
+class MaxUSDAPI MeshConverter
+{
+public:
+    /**
+     * \brief Geom channel intervals, contains the validity intervals of TOPO_CHAN_NUM, GEOM_CHAN_NUM,
+     * TEXMAP_CHAN_NUM and VERT_COLOR_CHAN_NUM channels.
+     */
+    typedef std::unordered_map<int, Interval> ObjectChannelIntervals;
+
+    /**
+     * \brief Converts an INode carrying geometry to a UsdGeomMesh prim at a given time frame.
+     * \param node The node to convert.
+     * \param stage The stage in which the UsdGeomMesh will be created.
+     * \param path The path to the output UsdGeomMesh.
+     * \param options Mesh conversion options.
+     * \param applyOffsetTransform Whether or not to apply the object offset transform onto the mesh.
+     * \param animated True if the mesh is a being exported as part of an animation.
+     * \param timeFrame The 3dsMax time to convert at, and associated target USD TimeCode.
+     * \return The converted UsdGeomMesh.
+     */
+    pxr::UsdGeomMesh ConvertToUSDMesh(
+        INode*                          node,
+        const pxr::UsdStagePtr&         stage,
+        const pxr::SdfPath&             path,
+        const MaxMeshConversionOptions& options,
+        bool                            applyOffsetTransform,
+        bool                            animated,
+        const MaxUsd::ExportTime&       timeFrame);
+
+    /**
+     * \brief Converts a MNMesh to a UsdGeomMesh prim.
+     * \param maxMesh The mesh to convert.
+     * \param stage The stage in which the UsdGeomMesh will be created.
+     * \param path The path to the output UsdGeomMesh.
+     * \param options Mesh conversion options.
+     * \param usdMesh The output UsdGeomMesh.
+     * \param timecode The USD timeCode at which the conversion happens.
+     * \param materialIdToFacesMap Material mapping information.
+     * \param animated Whether or not the conversion is part of an animation.
+     * \param channelValidity The object channel validity intervals.
+     */
+    void ConvertToUSDMesh(
+        MaxUsd::MeshFacade&               maxMesh,
+        const pxr::UsdStagePtr&           stage,
+        const pxr::SdfPath&               path,
+        const MaxMeshConversionOptions&   options,
+        pxr::UsdGeomMesh&                 usdMesh,
+        const pxr::UsdTimeCode&           timecode,
+        std::map<MtlID, pxr::VtIntArray>& materialIdToFacesMap,
+        bool                              animated,
+        const ObjectChannelIntervals&     channelValidity);
+    /**
+     * \brief Converts a MNMesh to a UsdGeomMesh prim. This overload was added to allow passing a temporary MeshFacade
+     * as parameter.
+     */
+    void ConvertToUSDMesh(
+        MaxUsd::MeshFacade&&              maxMesh,
+        const pxr::UsdStagePtr&           stage,
+        const pxr::SdfPath&               path,
+        const MaxMeshConversionOptions&   options,
+        pxr::UsdGeomMesh&                 usdMesh,
+        const pxr::UsdTimeCode&           timecode,
+        std::map<MtlID, pxr::VtIntArray>& materialIdToFacesMap,
+        bool                              animated,
+        const ObjectChannelIntervals&     channelValidity)
+    {
+        ConvertToUSDMesh(
+            maxMesh,
+            stage,
+            path,
+            options,
+            usdMesh,
+            timecode,
+            materialIdToFacesMap,
+            animated,
+            channelValidity);
+    }
+
+    /**
+     * \brief Converts a UsdGeomMesh to a 3dsMax PolyObject
+     * \param mesh The USD mesh to be converted.
+     * \param options Primvar mapping options.
+     * \param channelNames The map channel names, generated from converted primvars.
+     * \param geomSubsetsMaterial Generated multi-material, representing any found UsdGeomSubsets.
+     * \param timeCode The USD timeCode at which the conversion happens.
+     * \param cleanMesh Flag to remove vertices that aren't being used from the converted mesh.
+     * \return The created PolyObject
+     */
+    PolyObject* ConvertToPolyObject(
+        const pxr::UsdGeomMesh&      mesh,
+        const PrimvarMappingOptions& options,
+        std::map<int, std::string>&  channelNames,
+        MultiMtl**                   geomSubsetsMaterial,
+        pxr::UsdTimeCode             timeCode,
+        bool                         cleanMesh = true);
+
+    /**
+     * \brief Converts a UsdGeomMesh to a MNesh.
+     * \param mesh The USD mesh to convert.
+     * \param maxMesh The output MNMesh.
+     * \param options Primvar mapping options.
+     * \param channelNames The map channel names, generated from converted primvars.
+     * \param geomsubSetsMaterial Generated multi-material, representing any found UsdGeomSubsets.
+     * \param timeCode The USD timeCode at which the conversion happens.
+     * \param cleanMesh Flag to remove vertices that aren't being used from the converted mesh.
+     */
+    void ConvertToMNMesh(
+        const pxr::UsdGeomMesh&      mesh,
+        MNMesh&                      maxMesh,
+        const PrimvarMappingOptions& options,
+        std::map<int, std::string>&  channelNames,
+        MultiMtl**                   geomsubSetsMaterial = nullptr,
+        pxr::UsdTimeCode             timeCode = pxr::UsdTimeCode::Default(),
+        bool                         cleanMesh = true);
+
+    /**
+     * \brief Get the material id from custom data on the given usd prim.
+     * \param usdPrim The USD prim that contain the matId custom data.
+     * \return the matId contained in the custom data of the prim. Return -1 if there is no custom data or if the data
+     * is invalid.
+     */
+    static int GetMaterialIdFromCustomData(const pxr::UsdPrim& usdPrim);
+
+protected:
+    /**
+     * \brief Applies the USD normals to the given MNmesh.
+     * \param mesh The USD mesh from which to read the normals.
+     * \param maxMesh The max mesh where to apply the normals.
+     * \param timeCode The time code at which to get the normals.
+     */
+    static void ApplyUSDNormals(
+        const pxr::UsdGeomMesh& mesh,
+        MNMesh&                 maxMesh,
+        pxr::UsdTimeCode        timeCode = pxr::UsdTimeCode::Default());
+
+    /**
+     * \brief Applies a MNmesh's normals to a usd mesh.
+     * \param maxMesh The max mesh from which to fetch the normals.
+     * \param mesh The usd mesh where to apply the normals.
+     * \param options Mesh conversion options.
+     * \param channelIntervals The object channel validity intervals.
+     * \param timeCode The timecode at which to apply the normals.
+     * \param animated Whether or not the normal conversion is part of an animation.
+     * \return true if it was able to apply normals
+     */
+    static bool ApplyMaxNormals(
+        MaxUsd::MeshFacade&             maxMesh,
+        pxr::UsdGeomMesh&               mesh,
+        const MaxMeshConversionOptions& options,
+        const ObjectChannelIntervals&   channelIntervals,
+        pxr::UsdTimeCode                timeCode,
+        bool                            animated);
+
+    /**
+     * \brief Exports map channels to primvars on the target usd mesh.
+     * \param maxMesh The Max mesh where to read the channels.
+     * \param mesh The target USD mesh.
+     * \param options Mesh conversion options.
+     * \param channelIntervals The object channel validity intervals.
+     * \param timeCode The timecode where to write the primvars.
+     * \param animated Whether or not the conversion of the map channel is part of an animation.
+     * \return
+     */
+    static void ApplyMaxMapChannels(
+        MaxUsd::MeshFacade&             maxMesh,
+        pxr::UsdGeomMesh&               mesh,
+        const MaxMeshConversionOptions& options,
+        const ObjectChannelIntervals&   channelIntervals,
+        pxr::UsdTimeCode                timeCode,
+        bool                            animated);
+
+    /**
+     * \brief Exports a channel to a primvar.
+     * \param maxMesh The max mesh.
+     * \param channel The channel to export to a primvar.
+     * \param mesh The usd mesh where to create the primvar.
+     * \param primvarConfig The configuration for the primvar.
+     * \param channelIntervals The object channel validity intervals.
+     * \param timeCode The timecode at which to output the data.
+     * \param animated Whether or not the map channel conversion is part of an animation.
+     * \return True if successful, false otherwise.
+     */
+    static bool ChannelToPrimvar(
+        MaxUsd::MeshFacade&                           maxMesh,
+        int                                           channel,
+        pxr::UsdGeomMesh&                             mesh,
+        const MaxUsd::MappedAttributeBuilder::Config& primvarConfig,
+        const ObjectChannelIntervals&                 channelIntervals,
+        const pxr::UsdTimeCode&                       timeCode,
+        bool                                          animated);
+
+    /**
+     * \brief Resolves the target channels for the primvars of the given mesh. This takes care of incompatibilities
+     * and potential conflicts. Following a call to this method, we have a clear idea of what
+     * channel will host the data of what primvar for a specific mesh.
+     * \param mesh The usd mesh, potentially hosting primvars that will need to be imported.
+     * \param options The primvar to channel mapping options.
+     * \param channelPrimvars The resolved association, max channel -> primvar.
+     * \return The maximum channel used.
+     */
+    static void ResolveChannelPrimvars(
+        const pxr::UsdGeomMesh&             mesh,
+        const PrimvarMappingOptions&        options,
+        std::map<int, pxr::UsdGeomPrimvar>& channelPrimvars);
+
+    /**
+     * \brief Applies USD primvars to the given Max mesh.
+     * \param mesh  The usd mesh hosting the primvars to apply.
+     * \param maxMesh The target max mesh.
+     * \param options The primvar / channel mapping options.
+     * \param channelNames Filled map of names associated with each imported channels. Typically from primvar names.
+     * \param timeCode The USD time code at which to fetch the data.
+     */
+    static void ApplyUSDPrimvars(
+        const pxr::UsdGeomMesh&      mesh,
+        MNMesh&                      maxMesh,
+        const PrimvarMappingOptions& options,
+        std::map<int, std::string>&  channelNames,
+        const pxr::UsdTimeCode&      timeCode);
+
+    /**
+     * \brief Create USD subsets on the given usdMesh for the materialID information provided in materialIdToFacesMap.
+     * \param mtl The 3ds Max material associated to the mesh.
+     * \param materialIdToFacesMap A map of faces by material id.
+     * \param usdPrim The usd usdPrim on which to add the material binding subsets.
+     */
+    static void ApplyMaxMaterialIDs(
+        Mtl*                                    mtl,
+        const std::map<MtlID, pxr::VtIntArray>& materialIdToFacesMap,
+        const pxr::UsdPrim&                     usdPrim,
+        const pxr::UsdTimeCode&                 timeCode);
+
+    /**
+     * \brief Apply material id on the provide MNMesh from the provide usdMesh prim subsets
+     * \param usdPrim UsdPrim prim from which to extract the material id subsets
+     * \param maxMesh MNMesh on which to add the material id
+     * \param timeCode The USD time code at which to fetch the data.
+     * \param geomSubsetMaterial Optional, a multimaterial to be filled with geomSubset information
+     * if any in case of multiple materials bound to the mesh.
+     */
+    static void ApplyUSDMaterialIDs(
+        const pxr::UsdPrim&     usdPrim,
+        MNMesh&                 maxMesh,
+        const pxr::UsdTimeCode& timeCode,
+        MultiMtl**              geomSubsetMaterial = nullptr);
+
+    /**
+     * \brief Applies the MNMesh vert creases to the given USD mesh.
+     * \param usdMesh The USD mesh where to apply the vert creases.
+     * \param maxMesh The max mesh from which to read the vert creases.
+     * \param timeCode The time code at which to get the vert creases.
+     */
+    static void ApplyMaxVertCreases(
+        MaxUsd::MeshFacade& maxMesh,
+        pxr::UsdGeomMesh&   usdMesh,
+        pxr::UsdTimeCode    timeCode = pxr::UsdTimeCode::Default());
+
+    /**
+     * \brief Applies the USD vert creases to the given MNmesh.
+     * \param usdMesh The USD mesh from which to read the vert creases.
+     * \param maxMesh The max mesh where to apply the vert creases.
+     * \param timeCode The time code at which to get the vert creases.
+     */
+    static void ApplyUSDVertCreases(
+        const pxr::UsdGeomMesh& usdMesh,
+        MNMesh&                 maxMesh,
+        pxr::UsdTimeCode        timeCode = pxr::UsdTimeCode::Default());
+
+    /**
+     * \brief Applies the MNMesh edge creases to the given USD mesh.
+     * \param usdMesh The USD mesh where to apply the edge creases.
+     * \param maxMesh The max mesh from which to read the edge creases.
+     * \param timeCode The time code at which to get the edge creases.
+     */
+    static void ApplyMaxEdgeCreases(
+        MaxUsd::MeshFacade& maxMesh,
+        pxr::UsdGeomMesh&   usdMesh,
+        pxr::UsdTimeCode    timeCode = pxr::UsdTimeCode::Default());
+
+    /**
+     * \brief Applies the USD edge creases to the given MNmesh.
+     * \param usdMesh The USD mesh from which to read the edge creases.
+     * \param maxMesh The max mesh where to apply the edge creases.
+     * \param timeCode The time code at which to get the edge creases.
+     */
+    static void ApplyUSDEdgeCreases(
+        const pxr::UsdGeomMesh& usdMesh,
+        MNMesh&                 maxMesh,
+        pxr::UsdTimeCode        timeCode = pxr::UsdTimeCode::Default());
+
+    /**
+     * \brief Applies the given matId on the given mesh for the face found in the given geom Subset
+     * \param subset The USD geom subset in which to find the face indices
+     * \param maxMesh The max mesh where to apply the matId
+     * \param matId The matId to apply to the faces found in the geom subset
+     * \param timeCode The time code at which to get the faces.
+     */
+    static void ApplyMatIdToMesh(
+        const pxr::UsdGeomSubset& subset,
+        MNMesh&                   maxMesh,
+        int                       matId,
+        const pxr::UsdTimeCode&   timeCode);
+
+    /**
+     * \brief Gets the validity intervals of the object channels of the passed mesh object (poly or tri).
+     * \param object The object to get channel validities from.
+     * \param time The time value at which to get the validity intervals.
+     * \return Map of unordered object channel ids to validity intervals.
+     */
+    template <class MeshObjectType>
+    static ObjectChannelIntervals
+    GetObjectChannelIntervals(const MeshObjectType& object, const TimeValue& time)
+    {
+        return { { TOPO_CHAN_NUM, object->ChannelValidity(time, TOPO_CHAN_NUM) },
+                 { GEOM_CHAN_NUM, object->ChannelValidity(time, GEOM_CHAN_NUM) },
+                 { TEXMAP_CHAN_NUM, object->ChannelValidity(time, TEXMAP_CHAN_NUM) },
+                 { VERT_COLOR_CHAN_NUM, object->ChannelValidity(time, VERT_COLOR_CHAN_NUM) } };
+    }
+
+    /**
+     * \brief Returns "instance" validity intervals for geom channels.
+     * \param time The time at which channels are valid
+     * \return Channel validity intervals.
+     */
+    static ObjectChannelIntervals GetInstantChannelIntervals(const TimeValue& time)
+    {
+        const auto instantInterval = Interval(time, time);
+        return { { TOPO_CHAN_NUM, instantInterval },
+                 { GEOM_CHAN_NUM, instantInterval },
+                 { TEXMAP_CHAN_NUM, instantInterval },
+                 { VERT_COLOR_CHAN_NUM, instantInterval } };
+    }
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/MeshConversion/MeshFacade.cpp b/src/MaxUsd/MeshConversion/MeshFacade.cpp
new file mode 100644
index 0000000..d19479f
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MeshFacade.cpp
@@ -0,0 +1,418 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MeshFacade.h"
+
+#include <MNNormalSpec.h>
+#include <MeshNormalSpec.h>
+#include <meshadj.h>
+#include <mnmesh.h>
+
+namespace MAXUSD_NS_DEF {
+
+MeshFacade::MeshFacade(MNMesh* polyMesh, bool ownMesh)
+{
+    this->polyMesh = polyMesh;
+    this->ownMesh = ownMesh;
+}
+
+MeshFacade::MeshFacade(Mesh* triMesh, bool ownMesh)
+{
+    this->triMesh = triMesh;
+    this->ownMesh = ownMesh;
+}
+
+void MeshFacade::MakePlanar(float planarTresh) const
+{
+    if (triMesh) {
+        return; // No op.
+    }
+    return polyMesh->MakePlanar(planarTresh);
+}
+
+void MeshFacade::MakeConvex() const
+{
+    if (triMesh) {
+        return; // No op
+    }
+    return polyMesh->MakeConvex();
+}
+
+void MeshFacade::Cleanup() const
+{
+    if (triMesh) {
+        triMesh->RemoveDegenerateFaces();
+        triMesh->RemoveIllegalFaces();
+        return;
+    }
+    return polyMesh->CollapseDeadStructs();
+}
+
+Box3 MeshFacade::BoundingBox() const
+{
+    if (triMesh) {
+        return triMesh->getBoundingBox();
+    }
+    return polyMesh->getBoundingBox();
+}
+
+MeshFacade::~MeshFacade()
+{
+    if (!ownMesh) {
+        return;
+    }
+
+    delete triMesh;
+    delete polyMesh;
+}
+
+int MeshFacade::VertexCount() const
+{
+    if (triMesh) {
+        return triMesh->numVerts;
+    }
+    return polyMesh->VNum();
+}
+
+const Point3& MeshFacade::Vertex(int i) const
+{
+    if (triMesh) {
+        return triMesh->verts[i];
+    }
+    return polyMesh->V(i)->p;
+}
+
+int MeshFacade::FaceCount() const
+{
+    if (triMesh) {
+        return triMesh->numFaces;
+    }
+    return polyMesh->FNum();
+}
+
+int MeshFacade::FaceDegree(int faceIdx) const
+{
+    if (triMesh) {
+        return 3;
+    }
+    return polyMesh->F(faceIdx)->deg;
+}
+
+int MeshFacade::FaceVertex(int faceIdx, int cornerIdx) const
+{
+    if (triMesh) {
+        return triMesh->faces[faceIdx].v[cornerIdx];
+    }
+    return polyMesh->F(faceIdx)->vtx[cornerIdx];
+}
+
+bool MeshFacade::FaceIsDead(int faceIdx) const
+{
+    if (triMesh) {
+        return false; // No op.
+    }
+    return polyMesh->F(faceIdx)->GetFlag(MN_DEAD);
+}
+
+std::shared_ptr<std::vector<int>> MeshFacade::FaceIndices()
+{
+    if (!faceIndices) {
+        faceIndices = std::make_shared<std::vector<int>>();
+        faceIndices->reserve(FaceVertexIndicesCount());
+        for (int i = 0; i < FaceCount(); ++i) {
+            for (int j = 0; j < FaceDegree(i); ++j) {
+                faceIndices->push_back(FaceVertex(i, j));
+            }
+        }
+    }
+    return faceIndices;
+}
+
+MtlID MeshFacade::FaceMaterial(int faceIdx) const
+{
+    if (triMesh) {
+        return triMesh->faces[faceIdx].getMatID();
+    }
+    return polyMesh->F(faceIdx)->material;
+}
+
+int MeshFacade::FaceVertexIndicesCount()
+{
+    if (faceVertexIndicesCountCache != -1) {
+        return faceVertexIndicesCountCache;
+    }
+    if (triMesh) {
+        faceVertexIndicesCountCache = triMesh->numFaces * 3; // Triangles : always 3 sides!
+    } else {
+        faceVertexIndicesCountCache = std::accumulate<MNFace*, int, int(int, MNFace&)>(
+            polyMesh->f, polyMesh->f + polyMesh->FNum(), 0, [](int total, MNFace& face) {
+                return total + face.deg;
+            });
+    }
+    return faceVertexIndicesCountCache;
+}
+
+const float* MeshFacade::VertexCreaseData() const
+{
+    if (triMesh) {
+        return nullptr;
+    }
+    return polyMesh->vertexFloat(VDATA_CREASE);
+}
+
+const float* MeshFacade::EdgeCreaseData() const
+{
+    if (triMesh) {
+        return nullptr;
+    }
+    return polyMesh->edgeFloat(EDATA_CREASE);
+}
+
+DWORD MeshFacade::GetAllSmGroups() const
+{
+    if (triMesh) {
+        DWORD used = 0;
+        for (int i = 0; i < FaceCount(); i++) {
+            used |= triMesh->faces[i].smGroup;
+        }
+        return used;
+    }
+    return polyMesh->GetAllSmGroups();
+}
+
+void MeshFacade::LoadNormals()
+{
+    // Mesh :
+
+    if (triMesh) {
+        MeshNormalSpec* normalSpec = triMesh->GetSpecifiedNormals();
+        // If the normals are not specified, generate them from the smoothing groups.
+        if (!normalSpec) {
+            triMesh->SpecifyNormals();
+            normalSpec = triMesh->GetSpecifiedNormals();
+            normalSpec->SetParent(triMesh);
+        } else {
+            // It's easy for modifiers for mess up and leave the normals flag in a bad state,
+            // which can lead to corrupt data, for safety we have no choice but to force a
+            // recompute.
+            normalSpec->SetFlag(MESH_NORMAL_NORMALS_BUILT, FALSE);
+            normalSpec->SetFlag(MESH_NORMAL_NORMALS_COMPUTED, FALSE);
+        }
+        normalSpec->CheckNormals();
+
+        // Load the normal indices from the specified normals faces.
+        normalsIndices = std::make_shared<std::vector<int>>();
+        normalsIndices->reserve(normalSpec->GetNumFaces() * 3);
+        normalSpec->CheckNormals();
+        for (int i = 0; i < normalSpec->GetNumFaces(); ++i) {
+            for (int j = 0; j < 3; ++j) {
+                normalsIndices->push_back(normalSpec->Face(i).GetNormalID(j));
+            }
+        }
+        return;
+    }
+
+    // MNMesh :
+
+    MNNormalSpec* normalSpec = polyMesh->GetSpecifiedNormals();
+    // If the normals are not specified, generate them from the smoothing groups.
+    if (!normalSpec) {
+        polyMesh->SpecifyNormals();
+        normalSpec = polyMesh->GetSpecifiedNormals();
+        normalSpec->SetParent(polyMesh);
+    } else {
+        // It's easy for modifiers for mess up and leave the normals flag in a bad state,
+        // which can lead to corrupt data, for safety we have no choice but to force a recompute.
+        normalSpec->SetFlag(MNNORMAL_NORMALS_BUILT, FALSE);
+        normalSpec->SetFlag(MNNORMAL_NORMALS_COMPUTED, FALSE);
+    }
+    normalSpec->CheckNormals();
+
+    // Load the normal indices from the specified normals faces.
+    normalsIndices = std::make_shared<std::vector<int>>();
+    normalsIndices->reserve(FaceVertexIndicesCount());
+    normalSpec->CheckNormals();
+    for (int i = 0; i < normalSpec->GetNumFaces(); ++i) {
+        for (int j = 0; j < normalSpec->Face(i).GetDegree(); ++j) {
+            normalsIndices->push_back(normalSpec->Face(i).GetNormalID(j));
+        }
+    }
+}
+
+const Point3* MeshFacade::NormalData() const
+{
+    if (triMesh) {
+        const auto normalSpec = triMesh->GetSpecifiedNormals();
+        if (normalSpec) {
+            return normalSpec->GetNormalArray();
+        }
+    }
+
+    const auto mnNormalSpec = polyMesh->GetSpecifiedNormals();
+    if (mnNormalSpec) {
+        return mnNormalSpec->GetNormalArray();
+    }
+
+    return nullptr;
+}
+
+const std::shared_ptr<std::vector<int>> MeshFacade::NormalIndices() const { return normalsIndices; }
+
+int MeshFacade::NormalCount() const
+{
+    if (triMesh) {
+        const auto specNormals = triMesh->GetSpecifiedNormals();
+        if (specNormals) {
+            return specNormals->GetNumNormals();
+        }
+    }
+    const auto specNormals = polyMesh->GetSpecifiedNormals();
+    if (specNormals) {
+        return specNormals->GetNumNormals();
+    }
+    return 0;
+}
+
+int MeshFacade::MapCount() const
+{
+    if (triMesh) {
+        return triMesh->getNumMaps();
+    }
+    return polyMesh->MNum();
+}
+
+int MeshFacade::MapFaceCount(int channel) const
+{
+    if (triMesh) {
+        const MeshMap& map = triMesh->Map(channel);
+        return map.fnum;
+    }
+    const auto map = polyMesh->M(channel);
+    return map->FNum();
+}
+
+int MeshFacade::MapFaceDegree(int channel, int faceIdx) const
+{
+    if (triMesh) {
+        return 3;
+    }
+    const auto map = polyMesh->M(channel);
+    return map->F(faceIdx)->deg;
+}
+
+int MeshFacade::MapFaceVertex(int channel, int faceIdx, int cornerIdx) const
+{
+    if (triMesh) {
+        MeshMap& map = triMesh->Map(channel);
+        return map.tf[faceIdx].getTVert(cornerIdx);
+    }
+    const auto map = polyMesh->M(channel);
+    return map->F(faceIdx)->tv[cornerIdx];
+}
+
+const Point3* MeshFacade::MapData(int channel) const
+{
+    if (triMesh) {
+        MeshMap& map = triMesh->Map(channel);
+        return map.tv;
+    }
+    const auto map = polyMesh->M(channel);
+    return map->v;
+}
+
+int MeshFacade::MapDataCount(int channel) const
+{
+    if (triMesh) {
+        MeshMap& map = triMesh->Map(channel);
+        return map.getNumVerts();
+    }
+    const auto map = polyMesh->M(channel);
+    return map->VNum();
+}
+
+int MeshFacade::EdgeCount() const
+{
+    if (triMesh) {
+        // Not implemented.
+        return 0;
+    }
+    return polyMesh->nume;
+}
+
+int MeshFacade::EdgeVertex(int edgeIdx, bool start) const
+{
+    if (triMesh) {
+        // Not implemented.
+        return 0;
+    }
+
+    const auto edge = polyMesh->e[edgeIdx];
+
+    if (start) {
+        return edge.v1;
+    }
+    return edge.v2;
+}
+
+void MeshFacade::Triangulate()
+{
+    if (triMesh) {
+        return; // no op, already triangles!
+    }
+
+    // MNMesh::Triangulate() doesnt handle spec normals correctly.
+    // Instead, swap to a TriMesh behind the scenes.
+    triMesh = new Mesh();
+    polyMesh->OutToTri(*triMesh);
+    // If we own current polyMesh, delete it.
+    if (ownMesh) {
+        delete polyMesh;
+    }
+    polyMesh = nullptr;
+    // We own the newly generated mesh, make sure its deleted later.
+    ownMesh = true;
+
+    // Make sure we don't hold own to any cache.
+    ClearCachedData();
+}
+
+void MeshFacade::ClearCachedData()
+{
+    faceIndices = nullptr;
+    normalsIndices = nullptr;
+    faceVertexIndicesCountCache = -1;
+}
+
+void MeshFacade::Transform(Matrix3& transform) const
+{
+    // Inspired from the MNMesh::Transform()
+    if (triMesh) {
+        for (int i = 0; i < triMesh->getNumVerts(); i++) {
+            triMesh->verts[i] = triMesh->verts[i] * transform;
+        }
+        const auto specNormals = triMesh->GetSpecifiedNormals();
+        if (specNormals) {
+            specNormals->Transform(transform);
+        }
+        triMesh->InvalidateGeomCache();
+        triMesh->SetFlag(MESH_CACHEINVALID);
+        return;
+    }
+    polyMesh->Transform(transform);
+}
+
+bool MeshFacade::HasCreaseSupport() const { return polyMesh != nullptr; }
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MeshConversion/MeshFacade.h b/src/MaxUsd/MeshConversion/MeshFacade.h
new file mode 100644
index 0000000..ced46ec
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/MeshFacade.h
@@ -0,0 +1,101 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <MeshNormalSpec.h>
+#include <mesh.h>
+#include <mnmesh.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief A facade to work with the 3dsMax Mesh and MNMesh classes transparently.
+ * Does some caching internally to avoid recomputing the same things. These assume
+ * that the mesh will not change from the moment it is passed to the facade.
+ */
+class MeshFacade
+{
+public:
+    MeshFacade() = delete;
+    MaxUSDAPI explicit MeshFacade(MNMesh*, bool ownMesh = false);
+    MaxUSDAPI explicit MeshFacade(Mesh*, bool ownMesh = false);
+
+    MaxUSDAPI ~MeshFacade();
+
+    // Mesh data :
+    MaxUSDAPI int           VertexCount() const;
+    MaxUSDAPI const Point3& Vertex(int i) const;
+    MaxUSDAPI int           FaceCount() const;
+    MaxUSDAPI int           FaceDegree(int faceIdx) const;
+    MaxUSDAPI int           FaceVertex(int faceIdx, int cornerIdx) const;
+    MaxUSDAPI bool          FaceIsDead(int faceIdx) const;
+
+    MaxUSDAPI std::shared_ptr<std::vector<int>> FaceIndices();
+
+    // Returns the sum of all face's degrees.
+    MaxUSDAPI int FaceVertexIndicesCount();
+
+    MaxUSDAPI DWORD GetAllSmGroups() const;
+
+    MaxUSDAPI void          LoadNormals();
+    MaxUSDAPI int           NormalCount() const;
+    MaxUSDAPI const Point3* NormalData() const;
+    MaxUSDAPI const std::shared_ptr<std::vector<int>> NormalIndices() const;
+
+    // Map channel data :
+    MaxUSDAPI int           MapCount() const;
+    MaxUSDAPI int           MapFaceCount(int channel) const;
+    MaxUSDAPI int           MapFaceDegree(int channel, int faceIdx) const;
+    MaxUSDAPI int           MapFaceVertex(int channel, int faceIdx, int cornerIdx) const;
+    MaxUSDAPI const Point3* MapData(int channel) const;
+    MaxUSDAPI int           MapDataCount(int channel) const;
+
+    // Material assignment.
+    MaxUSDAPI MtlID FaceMaterial(int faceIdx) const;
+
+    // Vertex and Edge creasing :
+    MaxUSDAPI bool HasCreaseSupport() const;
+    // Currently only properly implemented for MNMesh, Mesh doesn't maintain an
+    // edge list (although it can be computed separately).
+    MaxUSDAPI int          EdgeCount() const;
+    MaxUSDAPI int          EdgeVertex(int edgeIdx, bool start) const;
+    MaxUSDAPI const float* VertexCreaseData() const;
+    MaxUSDAPI const float* EdgeCreaseData() const;
+
+    MaxUSDAPI void Transform(Matrix3& transform) const;
+    MaxUSDAPI void MakePlanar(float planarTresh) const;
+    MaxUSDAPI void MakeConvex() const;
+    MaxUSDAPI void Cleanup() const;
+    MaxUSDAPI Box3 BoundingBox() const;
+    MaxUSDAPI void Triangulate();
+
+protected:
+    void ClearCachedData();
+
+    MNMesh* polyMesh = nullptr;
+    Mesh*   triMesh = nullptr;
+    bool    ownMesh = false;
+
+    // Cache..
+    std::shared_ptr<std::vector<int>> faceIndices;
+    std::shared_ptr<std::vector<int>> normalsIndices;
+    int                               faceVertexIndicesCountCache = -1;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MeshConversion/PrimvarMappingOptions.cpp b/src/MaxUsd/MeshConversion/PrimvarMappingOptions.cpp
new file mode 100644
index 0000000..da13a03
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/PrimvarMappingOptions.cpp
@@ -0,0 +1,153 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "PrimvarMappingOptions.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+using namespace pxr;
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdPrimvarMappingOptions, PXR_MAXUSD_PRIMVAR_MAPPING_OPTIONS_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+PrimvarMappingOptions::PrimvarMappingOptions() { options = GetDefaultDictionary(); }
+
+PrimvarMappingOptions::PrimvarMappingOptions(const VtDictionary& dict) { options = dict; }
+
+const VtDictionary& PrimvarMappingOptions::GetDefaultDictionary()
+{
+    static VtDictionary   defaultDict;
+    static std::once_flag once;
+    std::call_once(once, []() {
+        defaultDict[MaxUsdPrimvarMappingOptions->version] = 1;
+        defaultDict[MaxUsdPrimvarMappingOptions->importUnmappedPrimvars] = false;
+        defaultDict[MaxUsdPrimvarMappingOptions->primvarToChannelMappings]
+            = GetDefaultPrimvarMappings();
+    });
+
+    return defaultDict;
+}
+
+void PrimvarMappingOptions::SetDefaultPrimvarChannelMappings()
+{
+    options.SetValueAtPath(
+        MaxUsdPrimvarMappingOptions->primvarToChannelMappings,
+        VtValue(GetDefaultPrimvarMappings()));
+}
+
+void PrimvarMappingOptions::SetDefaultPrimvarChannelMappings(VtDictionary& primvarMappings)
+{
+    primvarMappings.clear();
+
+    // Vertex color, alpha, shading...
+    primvarMappings[MaxUsdPrimvarTokens->displayOpacity] = -2; // USD well-known primvar.
+    primvarMappings[MaxUsdPrimvarTokens->mapShading] = -1;     // Round trip from max.
+    primvarMappings[MaxUsdPrimvarTokens->vertexColor] = 0;     // Round trip from max.
+
+    const auto prefix = std::string("map");
+    for (int i = 1; i < MAX_MESHMAPS; ++i) {
+        primvarMappings[prefix + std::to_string(i)] = i;
+    }
+
+    // Pixar legacy, "st" very often used for UVs.
+    primvarMappings[MaxUsdPrimvarTokens->st] = 1;
+    // Some exporters use "uv".
+    primvarMappings[MaxUsdPrimvarTokens->uv] = 1;
+    for (int i = 0; i < MAX_MESHMAPS - 1; ++i) {
+        // Support st_# and st#. st == st0 == st_0.
+        primvarMappings[MaxUsdPrimvarTokens->st.GetString() + std::to_string(i)] = i + 1;
+        primvarMappings[MaxUsdPrimvarTokens->st.GetString() + std::string("_") + std::to_string(i)]
+            = i + 1;
+        // Support uv_# and uv#. uv == uv0 == uv_0.
+        primvarMappings[MaxUsdPrimvarTokens->uv.GetString() + std::to_string(i)] = i + 1;
+        primvarMappings[MaxUsdPrimvarTokens->uv.GetString() + std::string("_") + std::to_string(i)]
+            = i + 1;
+    }
+}
+
+const pxr::VtDictionary& PrimvarMappingOptions::GetDefaultPrimvarMappings()
+{
+    static VtDictionary primvarMappings;
+
+    static std::once_flag once;
+    std::call_once(once, []() { SetDefaultPrimvarChannelMappings(primvarMappings); });
+
+    return primvarMappings;
+}
+
+const VtDictionary& PrimvarMappingOptions::GetOptions() const { return options; }
+
+const VtDictionary& PrimvarMappingOptions::GetPrimvarMappings() const
+{
+    return VtDictionaryGet<VtDictionary>(
+        options, MaxUsdPrimvarMappingOptions->primvarToChannelMappings);
+}
+
+void PrimvarMappingOptions::SetPrimvarChannelMapping(const std::string& primvar, int channel)
+{
+    static std::string baseKey
+        = MaxUsdPrimvarMappingOptions->primvarToChannelMappings.GetString() + ":";
+    options.SetValueAtPath(baseKey + primvar, VtValue(channel));
+}
+
+int PrimvarMappingOptions::GetPrimvarChannelMapping(const std::string& primvar) const
+{
+    const VtDictionary& mapping = GetPrimvarMappings();
+    const auto          it = mapping.find(primvar);
+    if (it != mapping.end() && it->second.IsHolding<int>()) {
+        return it->second.UncheckedGet<int>();
+    }
+    return invalidChannel;
+}
+
+void PrimvarMappingOptions::GetMappedPrimvars(std::vector<std::wstring>& primvars) const
+{
+    primvars.clear();
+    const auto& primvarToChannelMappings = GetPrimvarMappings();
+    primvars.reserve(primvarToChannelMappings.size());
+    for (const auto& mapping : primvarToChannelMappings) {
+        primvars.push_back(MaxUsd::UsdStringToMaxString(mapping.first).data());
+    }
+}
+
+void PrimvarMappingOptions::ClearMappedPrimvars()
+{
+    options.SetValueAtPath(
+        MaxUsdPrimvarMappingOptions->primvarToChannelMappings, VtValue(VtDictionary()));
+}
+
+bool PrimvarMappingOptions::IsMappedPrimvar(const std::string& primvar) const
+{
+    const auto& mapping = VtDictionaryGet<VtDictionary>(
+        options, MaxUsdPrimvarMappingOptions->primvarToChannelMappings, VtDefault = VtDictionary());
+    const auto it = mapping.find(primvar);
+    return it != mapping.end();
+}
+
+bool PrimvarMappingOptions::GetImportUnmappedPrimvars() const
+{
+    return VtDictionaryGet<bool>(options, MaxUsdPrimvarMappingOptions->importUnmappedPrimvars);
+}
+
+void PrimvarMappingOptions::SetImportUnmappedPrimvars(bool importUnmappedPrimvars)
+{
+    options[MaxUsdPrimvarMappingOptions->importUnmappedPrimvars] = importUnmappedPrimvars;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/MeshConversion/PrimvarMappingOptions.h b/src/MaxUsd/MeshConversion/PrimvarMappingOptions.h
new file mode 100644
index 0000000..5ef627a
--- /dev/null
+++ b/src/MaxUsd/MeshConversion/PrimvarMappingOptions.h
@@ -0,0 +1,137 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Utilities/DictionaryOptionProvider.h>
+
+#include <MaxUsd.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+#define PXR_MAXUSD_PRIMVAR_MAPPING_OPTIONS_TOKENS \
+	/* Dictionary keys */ \
+	(version) \
+	(primvarToChannelMappings) \
+	(importUnmappedPrimvars)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdPrimvarMappingOptions,
+    MaxUSDAPI,
+    PXR_MAXUSD_PRIMVAR_MAPPING_OPTIONS_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace MAXUSD_NS_DEF {
+
+// This class exposes methods for getting and setting primvar/channel mapping options.
+class PrimvarMappingOptions : public DictionaryOptionProvider
+{
+public:
+    /**
+     * \brief Constructor.
+     */
+    MaxUSDAPI PrimvarMappingOptions();
+
+    /**
+     * \brief Constructor.
+     * \param dict The dictionary to initialize the options from.
+     */
+    MaxUSDAPI PrimvarMappingOptions(const pxr::VtDictionary& dict);
+
+    MaxUSDAPI const pxr::VtDictionary& GetOptions() const;
+
+    /**
+     * \brief Sets defaults primvar to channels mappings.
+     */
+    MaxUSDAPI void SetDefaultPrimvarChannelMappings();
+
+    /**
+     * \brief Returns the primvar to channel map.
+     * \return The mapping table.
+     */
+    MaxUSDAPI const pxr::VtDictionary& GetPrimvarMappings() const;
+
+    /**
+     * \brief Sets a primvar to channel mapping.
+     * \param primvar The name of the primvar.
+     * \param channel The channel this primvar should be imported to.
+     */
+    MaxUSDAPI void SetPrimvarChannelMapping(const std::string& primvar, int channel);
+
+    /**
+     * \brief Gets the channel to which a primvar maps to.
+     * \param primvar The name of the primvar for which to retrieve the target channel.
+     * \return The target channel for this primvar.
+     */
+    MaxUSDAPI int GetPrimvarChannelMapping(const std::string& primvar) const;
+
+    /**
+     * \brief Returns the list of all currently mapped primvars.
+     * \param primvars The vector of primvar names to be filled.
+     */
+    MaxUSDAPI void GetMappedPrimvars(std::vector<std::wstring>& primvars) const;
+
+    /**
+     * \brief Checks if a primvar is currently mapped to a channel.
+     * \param primvar The primvar to check.
+     * \return True if the primvar is mapped, false otherwise.
+     */
+    MaxUSDAPI bool IsMappedPrimvar(const std::string& primvar) const;
+
+    /**
+     * \brief Gets whether or not to import primvars that are not explicitly mapped.
+     * \return True if unmapped primvars should be imported, false otherwise.
+     */
+    MaxUSDAPI bool GetImportUnmappedPrimvars() const;
+
+    /**
+     * \brief Sets whether or not to import primvars that are not explicitly mapped. If true, try to
+     * find the most appropriate channels for each unmapped primvar, based on their types.
+     * \param importUnmappedPrimvars If true, unmapped primvars will be imported.
+     */
+    MaxUSDAPI void SetImportUnmappedPrimvars(bool importUnmappedPrimvars);
+
+    /**
+     * \brief Clears all primvar mappings.
+     */
+    MaxUSDAPI void ClearMappedPrimvars();
+
+    static MaxUSDAPI const int invalidChannel = INT_MIN;
+
+private:
+    /**
+     * \brief Sets the default primvar to channel mappings.
+     * \param primvarMappings The dictionary to fill with default mappings.
+     */
+    static void SetDefaultPrimvarChannelMappings(pxr::VtDictionary& primvarMappings);
+
+    /**
+     * \brief The dictionary holding the default state of all the options.
+     * \return The default options dictionary.
+     */
+    static const pxr::VtDictionary& GetDefaultDictionary();
+
+    /**
+     * \brief Returns the default primvar mappings.
+     * \return The VtDictionary containing the default primvar mappings.
+     */
+    static const pxr::VtDictionary& GetDefaultPrimvarMappings();
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Translators/AnimExportTask.cpp b/src/MaxUsd/Translators/AnimExportTask.cpp
new file mode 100644
index 0000000..e8911e0
--- /dev/null
+++ b/src/MaxUsd/Translators/AnimExportTask.cpp
@@ -0,0 +1,219 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "AnimExportTask.h"
+
+#include <MaxUsd/DLLEntry.h>
+#include <MaxUsd/resource.h>
+
+namespace MAXUSD_NS_DEF {
+
+AnimExportTask::AnimExportTask(const TimeConfig& timeConfig)
+    : timeConfig(timeConfig)
+{
+}
+
+void AnimExportTask::AddObjectExportOp(
+    std::function<Interval(TimeValue)>     intervalFunc,
+    std::function<void(const ExportTime&)> writeAtTime,
+    std::function<void()>                  postExport)
+{
+    objectExportOps.push_back({ intervalFunc, writeAtTime, postExport });
+}
+
+void AnimExportTask::AddTransformExportOp(
+    std::function<void(const ExportTime&, pxr::UsdGeomXformOp&)> writeAtTime)
+{
+    transformExportOps.push_back({ writeAtTime });
+}
+
+void AnimExportTask::Execute(MaxProgressBar& progress)
+{
+    // Export the time samples for...
+    // Object prims : Only export the required frames, which we infer from the export
+    // data's validity interval (we get this from prim writers - typically the 3dsMax
+    // object validity intervals).
+    // Node transforms : Export the transforms at all time samples in the export range.
+
+    // Simple struct defining what needs to be exported for a specific time.
+    struct ExportReq
+    {
+        bool                      transform = false;
+        std::vector<ObjectAnimOp> objects;
+    };
+
+    // Track all times that we need to export, and the object we need to export at each of them.
+    std::map<TimeValue, ExportReq> exportTimes;
+
+    // We do not currently use validity intervals for transforms, so at a minimum, we need to export
+    // those at every time sample within the export range...
+    const int       timeStep = timeConfig.GetTimeStep();
+    const TimeValue startTime = timeConfig.GetStartTime();
+    const TimeValue endTime = timeConfig.GetEndTime();
+    for (TimeValue timeVal = startTime; timeVal <= endTime;) {
+        exportTimes.insert({ timeVal, { true, {} } });
+        if (timeVal == endTime) {
+            break;
+        }
+        // Calculate the next time sample... Make sure the endTime is exported.
+        timeVal = std::min(timeVal + timeStep, endTime);
+    }
+
+    // Next, cycle through all the objects we have queued for export, and figure out the first
+    // time value at which we need to export them, from the validity interval at the anim start
+    // time.
+    for (auto& objectExpOp : objectExportOps) {
+        const auto intervalAtStart = objectExpOp.getValidityInterval(startTime);
+
+        TimeValue firstExportTime = 0;
+
+        // Generally, we want to export the last time of the interval applicable at the start time.
+        // [----00000------] (data change on frames marked with 0s, [...] indicates the export
+        // range)
+        //     ^--- this is the first meaningful frame, data doesn't change up until right after it.
+        const auto lastTimeOfInterval = intervalAtStart.End();
+
+        if (lastTimeOfInterval > startTime && lastTimeOfInterval < endTime) {
+            firstExportTime = lastTimeOfInterval;
+        } else {
+            firstExportTime = startTime;
+        }
+        exportTimes[firstExportTime].objects.push_back(objectExpOp);
+    }
+
+    if (exportTimes.empty()) {
+        return;
+    }
+
+    // We report progress differently depending on if we are exporting an animation or a single
+    // frame. Animated : Report progress frame by frame. Non-Animated : Report progress per object
+    // and then per transform (object are exported first, then their transforms).
+    const bool animated = timeConfig.IsAnimated();
+
+    // Get the resource strings only once per 3dsmax session.
+    static const std::wstring framesProgMsg = GetString(IDS_EXPORT_FRAMES_PROGRESS_MESSAGE);
+    static const std::wstring objectsProgMsg = GetString(IDS_EXPORT_OBJECTS_PROGRESS_MESSAGE);
+    static const std::wstring transformProgMsg = GetString(IDS_EXPORT_TRANSFORMS_PROGRESS_MESSAGE);
+    static const std::wstring objectPostExportProgMsg
+        = GetString(IDS_EXPORT_POST_EXPORT_PROGRESS_MESSAGE);
+
+    progress.SetTotal(animated ? exportTimes.size() : objectExportOps.size());
+    progress.UpdateProgress(0, true, animated ? framesProgMsg.c_str() : objectsProgMsg.c_str());
+    size_t frameProgress = 0;
+
+    // Export at each time (exportTimes is ordered) - making sure that all objects & transforms
+    // that need to be exported at each frames are exported in one go, and so we benefit from
+    // the object state caching.
+    for (auto& frame : exportTimes) {
+        auto& req = frame.second;
+
+        const auto maxTime = frame.first;
+        const auto usdTime = animated ? pxr::UsdTimeCode(GetFrameFromTimeValue(maxTime))
+                                      : pxr::UsdTimeCode::Default();
+        // Write the object time samples we need at this frame...
+        for (size_t i = 0; i < req.objects.size(); ++i) {
+            auto& object = req.objects[i];
+
+            const ExportTime expTime { maxTime, usdTime, object.firstFrame };
+            object.write(expTime);
+
+            // Non-animated case, report an object was exported.
+            if (!animated) {
+                progress.UpdateProgress(i + 1, true, objectsProgMsg.c_str());
+            }
+
+            // Figure out the next time sample we will need for this object, from the validity
+            // interval of what we just exported.
+            const auto nextTime = maxTime + timeStep;
+            auto       interval = object.getValidityInterval(nextTime);
+            const auto intervalEnd = interval.End();
+            const auto intervalStart = interval.Start();
+
+            TimeValue nextCandidateTime = 0;
+
+            // Typically, we need to export at the start and end times of each object's interval,
+            // unless the validity goes beyond the range of frames we are interested in.
+
+            // If the object export interval goes up to, or beyond the range we are exporting,
+            // consider the start time of the interval for export.
+            if (intervalEnd >= endTime) {
+                nextCandidateTime = intervalStart;
+            }
+            // Typical case, moving through the animation / object export intervals.
+            else {
+                // If we previously exported the start time of the interval, export the end time.
+                if (maxTime == intervalStart) {
+                    nextCandidateTime = intervalEnd;
+                }
+                // Otherwise, make sure we export the start time.
+                else {
+                    nextCandidateTime = intervalStart;
+                }
+            }
+
+            // If for proper USD interpolation we should export a frame beyond the animation range,
+            // make sure to at least export the object at the last time of the exported animation.
+            if (nextCandidateTime > endTime) {
+                nextCandidateTime = endTime;
+            }
+
+            // If we previously exported an equal or more advanced time, we are done.
+            if (maxTime >= nextCandidateTime) {
+                continue;
+            }
+
+            if (object.firstFrame) {
+                object.firstFrame = false;
+            }
+            exportTimes[nextCandidateTime].objects.push_back(std::move(object));
+        }
+        req.objects.clear();
+
+        // If we need to export transforms at this frame, do it!
+        if (req.transform) {
+            if (!animated) {
+                progress.SetTotal(transformExportOps.size());
+            }
+
+            for (size_t i = 0; i < transformExportOps.size(); ++i) {
+                auto& transformExpOp = transformExportOps[i];
+
+                ExportTime expTime { maxTime, usdTime, false };
+                transformExpOp.write(expTime, transformExpOp.usdGeomXFormOp);
+
+                // Non-animated case - report that a transform was exported...
+                if (!animated) {
+                    progress.UpdateProgress(i + 1, true, transformProgMsg.c_str());
+                }
+            }
+
+            // Animated case - report that a frame was exported...
+            if (animated) {
+                progress.UpdateProgress(frameProgress++, true, framesProgMsg.c_str());
+            }
+        }
+    }
+
+    progress.SetTotal(objectExportOps.size());
+
+    int progressCounter = 0;
+    for (const auto& objectExpOp : objectExportOps) {
+        progress.UpdateProgress(progressCounter++, true, objectPostExportProgMsg.c_str());
+
+        objectExpOp.postExport();
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Translators/AnimExportTask.h b/src/MaxUsd/Translators/AnimExportTask.h
new file mode 100644
index 0000000..e8f6178
--- /dev/null
+++ b/src/MaxUsd/Translators/AnimExportTask.h
@@ -0,0 +1,88 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Utilities/MaxProgressBar.h>
+
+namespace MAXUSD_NS_DEF {
+
+// This class allows to queue up export operations, and later to execute them "batched" per 3dsMax
+// time. During the USD->3dsMax export process, we need to evaluate 3dsMax objects. Internally,
+// 3dsMax caches the object states for the last evaluated frame. It follows that, especially for
+// scenes with alot of object interdependencies, we want to export everything that needs to be
+// exported at a certain time, at the same time. This way, we can benefit from the caching. This is
+// essentially what this class is for.
+class AnimExportTask
+{
+public:
+    /**
+     * \brief Constructor
+     * \param timeConfig The time configuration for the export.
+     */
+    AnimExportTask(const TimeConfig& timeConfig);
+
+    /**
+     * \brief Adds an object export operation.
+     * \param intervalFunc A function returning the validity interval of the exported data at a certain time.
+     * From this we can figure out at what frame(s) this object needs to be exported.
+     * \param writeAtTime A function that actually writes to the prim at certain time.
+     * \param postExport A function called after all prims and materials have been written.
+     */
+    void AddObjectExportOp(
+        std::function<Interval(TimeValue)>     intervalFunc,
+        std::function<void(const ExportTime&)> writeAtTime,
+        std::function<void()>                  postExport);
+
+    /**
+     * \brief Adds a transform export operation.
+     * \param writeAtTime A function that writes the transform for an object at a certain time.
+     */
+    void
+    AddTransformExportOp(std::function<void(const ExportTime&, pxr::UsdGeomXformOp&)> writeAtTime);
+
+    /**
+     * \brief Executes all export operations, batching operations per 3dsMax times, so to limit object evaluations.
+     * \param Reference to the progress bar in use, for progress reporting, as this can be a length operation.
+     */
+    void Execute(MaxProgressBar& progress);
+
+private:
+    /**
+     * \brief Object export operation.
+     */
+    struct ObjectAnimOp
+    {
+        std::function<Interval(TimeValue)> getValidityInterval;
+        std::function<void(ExportTime)>    write;
+        std::function<void()>              postExport;
+        bool                               firstFrame = true;
+    };
+
+    /**
+     * \brief Transform export operation.
+     */
+    struct TransformAnimOp
+    {
+        std::function<void(const ExportTime&, pxr::UsdGeomXformOp&)> write;
+        pxr::UsdGeomXformOp                                          usdGeomXFormOp;
+    };
+
+    TimeConfig                   timeConfig;
+    std::vector<ObjectAnimOp>    objectExportOps;
+    std::vector<TransformAnimOp> transformExportOps;
+};
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Translators/FallbackPrimReader.cpp b/src/MaxUsd/Translators/FallbackPrimReader.cpp
new file mode 100644
index 0000000..8a2ed19
--- /dev/null
+++ b/src/MaxUsd/Translators/FallbackPrimReader.cpp
@@ -0,0 +1,53 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "FallbackPrimReader.h"
+
+#include "TranslatorUtils.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsd_FallbackPrimReader::MaxUsd_FallbackPrimReader(
+    const UsdPrim&        prim,
+    MaxUsdReadJobContext& jobCtx)
+    : MaxUsdPrimReader(prim, jobCtx)
+{
+}
+
+bool MaxUsd_FallbackPrimReader::Read()
+{
+    const UsdPrim& usdPrim = GetUsdPrim();
+    if (usdPrim.HasAuthoredTypeName() && !usdPrim.IsA<UsdGeomImageable>()) {
+        // Only create fallback 3ds Max nodes for untyped prims or imageable prims
+        // that have no prim reader.
+        return false;
+    }
+
+    return MaxUsdTranslatorUtil::CreateDummyHelperNode(usdPrim, usdPrim.GetName(), GetJobContext());
+}
+
+/* static */
+MaxUsdPrimReaderRegistry::ReaderFactoryFn MaxUsd_FallbackPrimReader::CreateFactory()
+{
+    return [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+        return std::make_shared<MaxUsd_FallbackPrimReader>(prim, jobCtx);
+    };
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/FallbackPrimReader.h b/src/MaxUsd/Translators/FallbackPrimReader.h
new file mode 100644
index 0000000..3a5c932
--- /dev/null
+++ b/src/MaxUsd/Translators/FallbackPrimReader.h
@@ -0,0 +1,37 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "PrimReader.h"
+#include "PrimReaderRegistry.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// This is a special prim reader that is used whenever a typeless prim or prim
+/// with unknown types is encountered when traversing USD.
+class MaxUsd_FallbackPrimReader : public MaxUsdPrimReader
+{
+public:
+    MaxUsd_FallbackPrimReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx);
+
+    bool Read() override;
+
+    static MaxUsdPrimReaderRegistry::ReaderFactoryFn CreateFactory();
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/FunctorPrimReader.cpp b/src/MaxUsd/Translators/FunctorPrimReader.cpp
new file mode 100644
index 0000000..4b153ce
--- /dev/null
+++ b/src/MaxUsd/Translators/FunctorPrimReader.cpp
@@ -0,0 +1,51 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "FunctorPrimReader.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsd_FunctorPrimReader::MaxUsd_FunctorPrimReader(
+    const UsdPrim&                     prim,
+    MaxUsdReadJobContext&              jobCtx,
+    MaxUsdPrimReaderRegistry::ReaderFn readerFn)
+    : MaxUsdPrimReader(prim, jobCtx)
+    , readerFn(readerFn)
+{
+}
+
+bool MaxUsd_FunctorPrimReader::Read() { return readerFn(GetUsdPrim(), GetArgs(), GetJobContext()); }
+
+/* static */
+MaxUsdPrimReaderSharedPtr MaxUsd_FunctorPrimReader::Create(
+    const UsdPrim&                     prim,
+    MaxUsdReadJobContext&              jobCtx,
+    MaxUsdPrimReaderRegistry::ReaderFn readerFn)
+{
+    return std::make_shared<MaxUsd_FunctorPrimReader>(prim, jobCtx, readerFn);
+}
+
+/* static */
+MaxUsdPrimReaderRegistry::ReaderFactoryFn
+MaxUsd_FunctorPrimReader::CreateFactory(MaxUsdPrimReaderRegistry::ReaderFn readerFn)
+{
+    return [=](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+        return Create(prim, jobCtx, readerFn);
+    };
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/FunctorPrimReader.h b/src/MaxUsd/Translators/FunctorPrimReader.h
new file mode 100644
index 0000000..94d5ffd
--- /dev/null
+++ b/src/MaxUsd/Translators/FunctorPrimReader.h
@@ -0,0 +1,56 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "PrimReader.h"
+#include "PrimReaderRegistry.h"
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+
+#include <pxr/pxr.h>
+
+#include <functional>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \class MaxUsd_FunctorPrimReader
+/// \brief This class is scaffolding to hold bare prim reader functions.
+///
+/// It is used by the PXR_MAXUSD_DEFINE_READER macro.
+class MaxUsd_FunctorPrimReader final : public MaxUsdPrimReader
+{
+public:
+    MaxUsd_FunctorPrimReader(
+        const UsdPrim&,
+        MaxUsdReadJobContext&,
+        MaxUsdPrimReaderRegistry::ReaderFn);
+
+    bool Read() override;
+
+    static MaxUsdPrimReaderSharedPtr
+    Create(const UsdPrim&, MaxUsdReadJobContext&, MaxUsdPrimReaderRegistry::ReaderFn readerFn);
+
+    static MaxUsdPrimReaderRegistry::ReaderFactoryFn
+    CreateFactory(MaxUsdPrimReaderRegistry::ReaderFn readerFn);
+
+private:
+    MaxUsdPrimReaderRegistry::ReaderFn readerFn;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.cpp b/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.cpp
new file mode 100644
index 0000000..1be1407
--- /dev/null
+++ b/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.cpp
@@ -0,0 +1,112 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "LastResortUSDPreviewSurfaceWriter.h"
+
+#include "ShaderWriter.h"
+#include "ShaderWriterRegistry.h"
+#include "ShadingModeRegistry.h"
+#include "WriteJobContext.h"
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/vt/value.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/sdf/types.h>
+#include <pxr/usd/usdShade/input.h>
+#include <pxr/usd/usdShade/shader.h>
+#include <pxr/usd/usdShade/tokens.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <Materials/mtl.h>
+#include <max.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdShaderWriter::ContextSupport
+LastResortUSDPreviewSurfaceWriter::CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (exportArgs.GetConvertMaterialsTo() == pxr::UsdImagingTokens->UsdPreviewSurface) {
+        return ContextSupport::Fallback;
+    }
+    return ContextSupport::Unsupported;
+}
+
+LastResortUSDPreviewSurfaceWriter::LastResortUSDPreviewSurfaceWriter(
+    Mtl*                   material,
+    const SdfPath&         usdPath,
+    MaxUsdWriteJobContext& jobCtx)
+    : MaxUsdShaderWriter(material, usdPath, jobCtx)
+{
+    MSTR warning = L"No Shader Writer found to convert Material \"";
+    warning.append(material->GetName());
+    warning.append(L"\" of type \"");
+    MSTR className;
+    material->GetClassName(className);
+    warning.append(className);
+    warning.append(L"\"to USDPreviewSurface. Generating a basic USDPreviewSurface with a diffuse "
+                   L"color as a fallback.");
+    MaxUsd::Log::Warn(warning.data());
+
+    UsdShadeShader shaderSchema = UsdShadeShader::Define(GetUsdStage(), GetUsdPath());
+    if (!TF_VERIFY(
+            shaderSchema,
+            "Could not define UsdShadeShader at path '%s'\n",
+            GetUsdPath().GetText())) {
+        return;
+    }
+
+    shaderSchema.CreateIdAttr(VtValue(UsdImagingTokens->UsdPreviewSurface));
+
+    usdPrim = shaderSchema.GetPrim();
+    if (!TF_VERIFY(
+            usdPrim,
+            "Could not get UsdPrim for UsdShadeShader at path '%s'\n",
+            shaderSchema.GetPath().GetText())) {
+        return;
+    }
+
+    // Surface Output
+    shaderSchema.CreateOutput(UsdShadeTokens->surface, SdfValueTypeNames->Token);
+}
+
+/* virtual */
+void LastResortUSDPreviewSurfaceWriter::Write()
+{
+    MaxUsdShaderWriter::Write();
+
+    Mtl* material = GetMaterial();
+
+    UsdShadeShader shaderSchema(usdPrim);
+    if (!TF_VERIFY(
+            shaderSchema,
+            "Could not get UsdShadeShader schema for UsdPrim at path '%s'\n",
+            usdPrim.GetPath().GetText())) {
+        return;
+    }
+
+    auto color = material->GetDiffuse();
+
+    shaderSchema.CreateOutput(UsdShadeTokens->surface, SdfValueTypeNames->Token);
+
+    const auto diffuseColorInput
+        = shaderSchema.CreateInput(pxr::TfToken("diffuseColor"), pxr::SdfValueTypeNames->Color3f);
+
+    const pxr::GfVec3f usdColor = { color.r, color.g, color.b };
+    diffuseColorInput.Set(usdColor);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.h b/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.h
new file mode 100644
index 0000000..f46d12a
--- /dev/null
+++ b/src/MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.h
@@ -0,0 +1,40 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ShaderWriter.h"
+#include "ShaderWriterRegistry.h"
+#include "WriteJobContext.h"
+
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class LastResortUSDPreviewSurfaceWriter : public MaxUsdShaderWriter
+{
+public:
+    LastResortUSDPreviewSurfaceWriter(
+        Mtl*                   material,
+        const SdfPath&         usdPath,
+        MaxUsdWriteJobContext& jobCtx);
+
+    static ContextSupport CanExport(const MaxUsd::USDSceneBuilderOptions&);
+
+    void Write() override;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimReader.cpp b/src/MaxUsd/Translators/PrimReader.cpp
new file mode 100644
index 0000000..2d654d3
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimReader.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "PrimReader.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdPrimReader::MaxUsdPrimReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+    : prim(prim)
+    , readJobCtx(jobCtx)
+{
+}
+
+/* static */
+MaxUsdPrimReader::ContextSupport
+MaxUsdPrimReader::CanImport(const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&)
+{
+    // Default value for all readers is Fallback. More specialized writers can
+    // override the base CanImport to report Supported/Unsupported as necessary.
+    return ContextSupport::Fallback;
+}
+
+const UsdPrim& MaxUsdPrimReader::GetUsdPrim() const { return prim; }
+
+const MaxUsd::MaxSceneBuilderOptions& MaxUsdPrimReader::GetArgs() const
+{
+    return readJobCtx.GetArgs();
+}
+
+MaxUsdReadJobContext& MaxUsdPrimReader::GetJobContext() const { return readJobCtx; }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimReader.h b/src/MaxUsd/Translators/PrimReader.h
new file mode 100644
index 0000000..94b5008
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimReader.h
@@ -0,0 +1,93 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdPrimReader
+{
+public:
+    MaxUSDAPI MaxUsdPrimReader(const UsdPrim&, MaxUsdReadJobContext&);
+    virtual ~MaxUsdPrimReader() = default;
+
+    /// The level of support a reader can offer for a given context
+    ///
+    /// A basic reader that gives correct results across most contexts should
+    /// report `Fallback`, while a specialized reader that really shines in a
+    /// given context should report `Supported` when the context is right and
+    /// `Unsupported` if the context is not as expected.
+    enum class ContextSupport
+    {
+        Supported,
+        Fallback,
+        Unsupported
+    };
+
+    /// This static function is expected for all prim readers and allows
+    /// declaring how well this class can support the current context:
+    MaxUSDAPI static ContextSupport
+    CanImport(const MaxUsd::MaxSceneBuilderOptions& importArgs, const UsdPrim& importPrim);
+
+    /// Reads the USD prim given by the prim reader args into a 3ds Max element
+    /// The created element adds itself to the context
+    /// Returns true if successful.
+    MaxUSDAPI virtual bool Read() = 0;
+
+    /// Whether this prim reader specifies a PostReadSubtree step.
+    MaxUSDAPI virtual bool HasPostReadSubtree() const { return false; };
+
+    /// An additional import step that runs after all descendants of this prim
+    /// have been processed.
+    /// For example, if we have prims /A, /A/B, and /C, then the import steps
+    /// are run in the order:
+    /// (1) Read A (2) Read B (3) PostReadSubtree B (4) PostReadSubtree A,
+    /// (5) Read C (6) PostReadSubtree C
+    MaxUSDAPI virtual void PostReadSubtree() {};
+
+    /// Method called when a 3ds Max instance is created (cloned) from a Node which originally was
+    /// created using this reader instance. Could be used to assign a material to this specific
+    /// instance.
+    /// \param prim Current instance prim
+    /// \param instance Instanced 3ds Max Node
+    MaxUSDAPI virtual void InstanceCreated(const UsdPrim& prim, INode* instance) {};
+
+protected:
+    /// The imported USD prim
+    MaxUSDAPI const UsdPrim& GetUsdPrim() const;
+
+    /// Import arguments
+    MaxUSDAPI const MaxUsd::MaxSceneBuilderOptions& GetArgs() const;
+
+    /// Get import job context
+    MaxUSDAPI MaxUsdReadJobContext& GetJobContext() const;
+
+private:
+    const UsdPrim&        prim;
+    MaxUsdReadJobContext& readJobCtx;
+};
+
+typedef std::shared_ptr<MaxUsdPrimReader> MaxUsdPrimReaderSharedPtr;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimReaderRegistry.cpp b/src/MaxUsd/Translators/PrimReaderRegistry.cpp
new file mode 100644
index 0000000..30b6e4a
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimReaderRegistry.cpp
@@ -0,0 +1,204 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "PrimReaderRegistry.h"
+
+#include "FallbackPrimReader.h"
+#include "FunctorPrimReader.h"
+#include "RegistryHelper.h"
+
+#include <MaxUsd/DebugCodes.h>
+
+#include <pxr/base/plug/registry.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/stl.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/tf/type.h>
+#include <pxr/usd/usd/schemaBase.h>
+
+#include <map>
+#include <string>
+#include <utility>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    (MaxUsd)
+    (PrimReader)
+);
+// clang-format on
+
+namespace {
+struct _RegistryEntry
+{
+    MaxUsdPrimReaderRegistry::ContextPredicateFn _pred;
+    MaxUsdPrimReaderRegistry::ReaderFactoryFn    _fn;
+    int                                          _index;
+};
+
+typedef std::unordered_multimap<TfToken, _RegistryEntry, TfToken::HashFunctor> _Registry;
+static _Registry                                                               _reg;
+static int                                                                     _indexCounter = 0;
+
+_Registry::const_iterator _Find(
+    const TfType&                         tfType,
+    const MaxUsd::MaxSceneBuilderOptions& importArgs,
+    const UsdPrim&                        importPrim)
+{
+    using ContextSupport = MaxUsdPrimReader::ContextSupport;
+
+    _Registry::const_iterator ret = _reg.cend();
+
+    if (tfType.IsUnknown()) {
+        return ret;
+    }
+
+    _Registry::const_iterator first, last;
+
+    std::vector<TfType> ancestorTypes;
+    tfType.GetAllAncestorTypes(&ancestorTypes);
+    for (int i = 0; i < ancestorTypes.size(); ++i) {
+        // the second element in the list is the parent type
+        TfToken typeName(ancestorTypes[i].GetTypeName());
+
+        std::tie(first, last) = _reg.equal_range(typeName);
+        while (first != last) {
+            ContextSupport support = first->second._pred(importArgs, importPrim);
+            // Look for a "Supported" reader. If no "Supported" reader is found, use a "Fallback"
+            // reader
+            if (support == ContextSupport::Supported) {
+                return first;
+            } else if (support == ContextSupport::Fallback && ret == _reg.end()) {
+                ret = first;
+            }
+            ++first;
+        }
+    }
+
+    return ret;
+}
+} // namespace
+
+/* static */
+void MaxUsdPrimReaderRegistry::Register(
+    const TfType&                                t,
+    MaxUsdPrimReaderRegistry::ContextPredicateFn pred,
+    MaxUsdPrimReaderRegistry::ReaderFactoryFn    fn,
+    bool                                         fromPython)
+{
+    TfToken tfTypeName(t.GetTypeName());
+    int     index = _indexCounter++;
+    TF_DEBUG(PXR_MAXUSD_REGISTRY)
+        .Msg("Registering MaxUsdPrimReader for TfType %s.\n", tfTypeName.GetText());
+    _reg.insert(std::make_pair(tfTypeName, _RegistryEntry { pred, fn, index }));
+
+    // The unloader uses the index to know which entry to erase when there are
+    // more than one for the same usdInfoId.
+    if (fn) {
+        MaxUsd_RegistryHelper::AddUnloader(
+            [tfTypeName, index]() {
+                _Registry::const_iterator it, itEnd;
+                std::tie(it, itEnd) = _reg.equal_range(tfTypeName);
+                for (; it != itEnd; ++it) {
+                    if (it->second._index == index) {
+                        _reg.erase(it);
+                        break;
+                    }
+                }
+            },
+            fromPython);
+    }
+}
+
+/* static */
+void MaxUsdPrimReaderRegistry::RegisterRaw(const TfType& t, MaxUsdPrimReaderRegistry::ReaderFn fn)
+{
+    Register(
+        t,
+        [](const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&) {
+            return MaxUsdPrimReader::ContextSupport::Fallback;
+        },
+        MaxUsd_FunctorPrimReader::CreateFactory(fn));
+}
+
+/* static */
+MaxUsdPrimReaderRegistry::ReaderFactoryFn MaxUsdPrimReaderRegistry::Find(
+    const TfToken&                        usdTypeName,
+    const MaxUsd::MaxSceneBuilderOptions& importArgs,
+    const UsdPrim&                        importPrim)
+{
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdPrimReaderRegistry>();
+
+    // unfortunately, usdTypeName is diff from the tfTypeName which we use to
+    // register.  do the conversion here.
+    TfType          tfType = PlugRegistry::FindDerivedTypeByName<UsdSchemaBase>(usdTypeName);
+    std::string     typeNameStr = tfType.GetTypeName();
+    TfToken         typeName(typeNameStr);
+    ReaderFactoryFn ret = nullptr;
+
+    _Registry::const_iterator it = _Find(tfType, importArgs, importPrim);
+
+    if (it != _reg.end()) {
+        return it->second._fn;
+    }
+
+    static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->PrimReader };
+    // try to find a plugin suitable for the type and its ancestors
+    std::vector<TfType> ancestorTypes;
+    tfType.GetAllAncestorTypes(&ancestorTypes);
+    for (int i = 0; i < ancestorTypes.size(); ++i) {
+        MaxUsd_RegistryHelper::FindAndLoadMaxPlug(SCOPE, ancestorTypes[i].GetTypeName());
+
+        // ideally something just registered itself.  if not, we at least put it in
+        // the registry in case we encounter it again.
+        it = _Find(tfType, importArgs, importPrim);
+        if (it != _reg.end()) {
+            return it->second._fn;
+        }
+    }
+
+    if (_reg.count(typeName) == 0) {
+        TF_DEBUG(PXR_MAXUSD_REGISTRY)
+            .Msg("No MaxUsd reader plugin for TfType %s. No 3ds Max plugin.\n", typeName.GetText());
+        Register(
+            tfType,
+            [](const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&) {
+                return MaxUsdPrimReader::ContextSupport::Fallback;
+            },
+            nullptr);
+    }
+    return ret;
+}
+
+/* static */
+MaxUsdPrimReaderRegistry::ReaderFactoryFn MaxUsdPrimReaderRegistry::FindOrFallback(
+    const TfToken&                        usdTypeName,
+    const MaxUsd::MaxSceneBuilderOptions& importArgs,
+    const UsdPrim&                        importPrim)
+{
+    if (ReaderFactoryFn fn = Find(usdTypeName, importArgs, importPrim)) {
+        return fn;
+    }
+
+    return MaxUsd_FallbackPrimReader::CreateFactory();
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimReaderRegistry.h b/src/MaxUsd/Translators/PrimReaderRegistry.h
new file mode 100644
index 0000000..1f8f169
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimReaderRegistry.h
@@ -0,0 +1,200 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "PrimReader.h"
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/plug/registry.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \class MaxUsdPrimReaderRegistry
+/// \brief Provides functionality to register and lookup usd 3ds Max reader
+/// plugins.
+///
+/// Use PXR_MAXUSD_DEFINE_READER(MyUsdType, usdPrim, args, ctx) to register a new reader
+/// for 3ds Max.
+///
+/// In order for the core system to discover the plugin, you should also
+/// have a plugInfo.json file that contains the type and 3ds Max plugin to load:
+/// \code
+/// {
+///     "MaxUsd": {
+///         "PrimReader": {
+///             "providesTranslator": [
+///                 "MyUsdType"
+///             ]
+///         }
+///     }
+/// }
+/// \endcode
+struct MaxUsdPrimReaderRegistry
+{
+    /// Reader factory function, i.e. a function that creates a prim reader
+    /// for the given prim reader args.
+    typedef std::function<MaxUsdPrimReaderSharedPtr(const UsdPrim&, MaxUsdReadJobContext&)>
+        ReaderFactoryFn;
+
+    /// Predicate function, i.e. a function that can tell the level of support
+    /// the reader function will provide for a given context.
+    typedef std::function<
+        MaxUsdPrimReader::ContextSupport(const MaxUsd::MaxSceneBuilderOptions&, const UsdPrim&)>
+        ContextPredicateFn;
+
+    /// Reader function, i.e. a function that reads a prim. This is the
+    /// signature of the function declared in the PXR_MAXUSD_DEFINE_READER
+    /// macro.
+    typedef std::function<
+        bool(const UsdPrim&, const MaxUsd::MaxSceneBuilderOptions&, MaxUsdReadJobContext&)>
+        ReaderFn;
+
+    /// \brief Register fn as a reader provider for type and provide the supportability.
+    MaxUSDAPI static void Register(
+        const TfType&      type,
+        ContextPredicateFn pred,
+        ReaderFactoryFn    fn,
+        bool               fromPython = false);
+
+    /// \brief Register a reader provider for <T>.
+    ///
+    /// Example for registering a reader factory in your custom plugin, assuming
+    /// that MyType is registered with the TfType system:
+    /// \code{.cpp}
+    /// class MyReader : public MaxUsdPrimReader {
+    ///     static MaxUsdPrimReaderSharedPtr Create(
+    ///             const UsdPrim&, MaxUsdReadJobContext&);
+    /// };
+    /// TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, MyType) {
+    ///     MaxUsdPrimReaderRegistry::Register<MyType>(MyReader::Create);
+    /// }
+    /// \endcode
+    template <typename T> static void Register(ReaderFactoryFn fn, bool fromPython = false)
+    {
+        if (TfType t = TfType::Find<T>()) {
+            Register(t, MaxUsdPrimReader::CanImport, fn, fromPython);
+        } else {
+            TF_CODING_ERROR("Cannot register unknown TfType: %s.", ArchGetDemangled<T>().c_str());
+        }
+    }
+
+    /// \brief Register fn as a reader provider for T and provide the supportability.
+    /// Use "Supported" to override default reader
+    ///
+    /// Example for registering a reader factory in your custom plugin, assuming
+    /// that MyType is registered with the TfType system:
+    /// \code{.cpp}
+    /// class MyReader : public MaxUsdPrimReader {
+    ///     static MaxUsdPrimReaderSharedPtr Create(
+    ///             const MaxSceneBuilderOptions&);
+    ///     static CanImport(const MaxSceneBuilderOptions& importArgs, const UsdPrim& prim) {
+    ///         return Supported; // After consulting the arguments
+    ///     }
+    /// };
+    /// TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, MyType) {
+    ///     MaxUsdPrimReaderRegistry::Register<MyType>(MyReader::CanImport, MyReader::Create);
+    /// }
+    /// \endcode
+    template <typename T>
+    static void Register(ContextPredicateFn pred, ReaderFactoryFn fn, bool fromPython = false)
+    {
+        if (TfType t = TfType::Find<T>()) {
+            Register(t, pred, fn, fromPython);
+        } else {
+            TF_CODING_ERROR("Cannot register unknown TfType: %s.", ArchGetDemangled<T>().c_str());
+        }
+    }
+
+    /// \brief Wraps fn in a ReaderFactoryFn and registers that factory
+    /// function as a reader provider for <T>.
+    /// This is a helper method for the macro PXR_MAXUSD_DEFINE_READER;
+    /// you probably want to use PXR_MAXUSD_DEFINE_READER directly instead.
+    MaxUSDAPI static void RegisterRaw(const TfType& type, ReaderFn fn);
+
+    /**
+     * \brief Unregisters a prim writer.
+     * \param key The unique key for the writer.
+     */
+    MaxUSDAPI static void Unregister(const std::string& key);
+
+    // takes a usdType (i.e. prim.GetTypeName())
+    /// \brief Finds a reader factory if one exists for usdTypeName.
+    ///
+    /// \param usdTypeName should be a usd typeName, for example,
+    /// \code
+    /// prim.GetTypeName()
+    /// \endcode
+    MaxUSDAPI static ReaderFactoryFn Find(
+        const TfToken&                        usdTypeName,
+        const MaxUsd::MaxSceneBuilderOptions& importArgs,
+        const UsdPrim&                        importPrim);
+
+    /// Similar to Find(), but returns a "fallback" prim reader factory if none
+    /// can be found for usdTypeName. Thus, this always returns a valid
+    /// reader factory.
+    MaxUSDAPI static ReaderFactoryFn FindOrFallback(
+        const TfToken&                        usdTypeName,
+        const MaxUsd::MaxSceneBuilderOptions& importArgs,
+        const UsdPrim&                        importPrim);
+};
+
+// Lookup TfType by name instead of static C++ type when
+// registering prim reader functions.
+#define PXR_MAXUSD_DEFINE_READER(T, primVarName, argsVarName, ctxVarName)              \
+    static bool MaxUsd_PrimReader_##T(                                                 \
+        const UsdPrim&, const MaxUsd::MaxSceneBuilderOptions&, MaxUsdReadJobContext&); \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, T)                         \
+    {                                                                                  \
+        if (TfType t = TfType::FindByName(#T)) {                                       \
+            MaxUsdPrimReaderRegistry::RegisterRaw(t, MaxUsd_PrimReader_##T);           \
+        } else {                                                                       \
+            TF_CODING_ERROR("Cannot register unknown TfType: %s.", #T);                \
+        }                                                                              \
+    }                                                                                  \
+    bool MaxUsd_PrimReader_##T(                                                        \
+        const UsdPrim&                        primVarName,                             \
+        const MaxUsd::MaxSceneBuilderOptions& argsVarName,                             \
+        MaxUsdReadJobContext&                 ctxVarName)
+
+// Lookup TfType by name instead of static C++ type when
+// registering prim reader functions. This allows readers to be
+// registered for codeless schemas, which are declared in the
+// TfType system but have no corresponding C++ code.
+#define PXR_MAXUSD_DEFINE_READER_FOR_USD_TYPE(T, usdPrimVarName, argsVarName, ctxVarName) \
+    static bool MaxUsd_PrimReader_##T(                                                    \
+        const UsdPrim&, const MaxUsd::MaxSceneBuilderOptions&, MaxUsdReadJobContext&);    \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, T)                            \
+    {                                                                                     \
+        const TfType& tfType = PlugRegistry::FindDerivedTypeByName<UsdSchemaBase>(#T);    \
+        if (tfType) {                                                                     \
+            MaxUsdPrimReaderRegistry::RegisterRaw(tfType, MaxUsd_PrimReader_##T);         \
+        } else {                                                                          \
+            TF_CODING_ERROR("Cannot register unknown TfType for usdType: %s.", #T);       \
+        }                                                                                 \
+    }                                                                                     \
+    bool MaxUsd_PrimReader_##T(                                                           \
+        const UsdPrim&                        usdPrimVarName,                             \
+        const MaxUsd::MaxSceneBuilderOptions& argsVarName,                                \
+        MaxUsdReadJobContext&                 ctxVarName)
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/PrimWriter.cpp b/src/MaxUsd/Translators/PrimWriter.cpp
new file mode 100644
index 0000000..e17af30
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimWriter.cpp
@@ -0,0 +1,61 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "PrimWriter.h"
+
+#include "WriteJobContext.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdPrimWriter::MaxUsdPrimWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : writeJobCtx(jobCtx)
+    , node(node)
+{
+}
+
+MaxUsdPrimWriter::~MaxUsdPrimWriter() { }
+
+const MaxUsd::USDSceneBuilderOptions& MaxUsdPrimWriter::GetExportArgs() const
+{
+    return writeJobCtx.GetArgs();
+}
+
+const MaxUsdWriteJobContext& MaxUsdPrimWriter::GetJobContext() const { return writeJobCtx; }
+
+INode* MaxUsdPrimWriter::GetNode() const { return node; }
+
+Interval MaxUsdPrimWriter::GetValidityInterval(const TimeValue& time)
+{
+    // Default to the validity interval of the max object being exported, roughly speaking
+    // this means the writer will be called as the object changes.
+    return node->EvalWorldState(time).obj->ObjectValidity(time);
+}
+
+const UsdStageRefPtr& MaxUsdPrimWriter::GetUsdStage() const { return writeJobCtx.GetUsdStage(); }
+
+const std::string& MaxUsdPrimWriter::GetFilename() const { return writeJobCtx.GetFilename(); }
+
+boost::python::dict MaxUsdPrimWriter::GetNodesToPrims() const
+{
+    boost::python::dict allNodesPrims;
+    for (const auto& perNode : writeJobCtx.GetNodesToPrimsMap()) {
+        allNodesPrims[perNode.first->GetHandle()] = perNode.second;
+    }
+    return allNodesPrims;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimWriter.h b/src/MaxUsd/Translators/PrimWriter.h
new file mode 100644
index 0000000..61832de
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimWriter.h
@@ -0,0 +1,209 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MaxTokens.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdWriteJobContext;
+
+/// \brief Base class for all built-in and user-defined prim writers. Translates 3dsMax
+/// nodes to USD prims.
+///
+/// The PrimWriter is only responsible for providing translation of the 3dsMax Object referenced by
+/// the received Node. It should therefore not attempt to handle instancing, material assignment,
+/// and the transform of the Node itself. Instancing is handled by the calling code - if an object
+/// is instanced across multiple nodes, the PrimWriter is only called once, on the first node
+/// referencing the instanced object. The required Xform prim hierarchy is already generated.
+/// Similarly, the Node's transform is applied by the calling code, on the UsdGeomXformable prim
+/// built by the PrimWriter, *after* it is run. If the USD prim is *not* a UsdGeomXformable, a
+/// warning is raised, but it doesn't prevent the export from continuing.
+class MaxUsdPrimWriter
+{
+public:
+    /// \brief The level of support a writer can offer for a given context
+    ///
+    /// A basic writer that gives correct results across most contexts should
+    /// report `Fallback`, while a specialized writer that really shines in a
+    /// given context should report `Supported` when the context is right and
+    /// `Unsupported` if the context is not as expected.
+    enum class ContextSupport
+    {
+        Unsupported,
+        Supported,
+        Fallback
+    };
+
+    /**
+     * \brief Constructor.
+     * \param jobCtx The write job context (options, target file, stage, etc.)
+     * \parm node The node that this writer will translate to a USD prim.
+     */
+    MaxUSDAPI MaxUsdPrimWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    /**
+     * \brief Destructor.
+     */
+    MaxUSDAPI virtual ~MaxUsdPrimWriter();
+
+    /**
+     * \brief The prim type you are writing to.
+     * For performance reasons, all prims get created ahead of time in a single `SdfChangeBlock`.
+     * This means the prim writers are not responsible for creating the prims. The type specified
+     * here is mostly a hint for that first creation pass and, if required, it can be overridden
+     * from the `Write()` method (by defining a prim at the same path with a different type). Unless
+     * you always force the creation of an Xform prim (see `RequireXformPrim()`), you should return
+     * an Xformable type here; otherwise, it is not possible to apply the node's transform onto the
+     * prim later (an error will be raised in this scenario). \return The prim's type.
+     */
+    MaxUSDAPI virtual TfToken GetPrimType() { return pxr::MaxUsdPrimTypeTokens->Xform; };
+
+    /**
+     * \brief Responsible for writing the prim's attribute for the given context. This is where the translation from
+     * the 3dsMax node to the USD prim happens.
+     * \param targetPrim The prim we are writing to.
+     * \param applyOffsetTransform Whether or not the object offset transform should be applied onto the prim. Can only
+     * be true if HandlesObjectOffsetTransform() returned true, otherwise it will always be false.
+     * \param time The 3dsMax time and matching USD timecode at which the write takes place.
+     * \return True if the write operation was successful, false otherwise.
+     */
+    MaxUSDAPI virtual bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time)
+    {
+        return false;
+    }
+
+    /**
+     * \brief Called after Write has been called to all other nodes. Useful place to write information for the prim that
+     * are dependent on other prims on the stage.
+     * \param targetPrim The prim we are writing to.
+     * \return True if the write operation was successful, false otherwise.
+     */
+    MaxUSDAPI virtual bool PostExport(UsdPrim& targetPrim) { return true; }
+
+    /**
+     * \brief Returns the name of this prim writer.
+     * \return The writer's name.
+     */
+    MaxUSDAPI virtual WStr GetWriterName() { return WStr(); };
+
+    /**
+     * \brief In a few scenarios, you need two prims to properly represent an INode. One for its transform, and one
+     * for the object it references (for example, in the case of a non-identity object offset
+     * transform, it must not inherit the transform, so you cannot use a single prim for the INode).
+     * When you do need to perform such a split, the object's prim has the same name as the node's
+     * prim, with an added suffix - the string returned here.
+     * \return A suffix for the object prim.
+     */
+    MaxUSDAPI virtual TfToken GetObjectPrimSuffix() { return TfToken("Object"); };
+
+    /**
+     * \brief Returns the name that should be used for the prim. The base implementation should be sufficient in most
+     * cases, unless prim writers want to customize the prim's name. If so, it is their
+     * responsibility to ensure that the given name is unique amongst siblings.
+     * \param suggestedName A suggested name, from the node's name, and ensured unique amongst siblings.
+     * \return The name that should be used (will be part of the prim's path /foo/bar/{Prim name}
+     */
+    MaxUSDAPI virtual std::string GetPrimName(const std::string& suggestedName)
+    {
+        return suggestedName;
+    };
+
+    /**
+     * \brief Returns the requirement to split the object from its transform in the scene.
+     * - ForOffsetObjects : This should be the case for most objects, this means we require an Xform
+     * if an object offset is applied to the object. Indeed, object offset transforms should not be
+     * inherited, so we need an Xform prim to encode the node's transform (the children of the node
+     * will export to children of this prim), and another for the object itself, which will be
+     * exported to a prim under that Xform. It will contain the object offset transform, and it will
+     * not have children.
+     * - Always :For cases where we always need to have a seperate prim for the node's transform.
+     * For example if we are exporting to a gprim, which, unless we explicitely allow it, should not
+     * be nested. This could also be the case if we need to add an inherent transform to the
+     * object's prim, part of the translation, and we never want that transform to be inherited.
+     * - Never : To be used if we know we never want to split the node's transform from its object.
+     * For example we could be baking the object offset transform into the geometry itself - in this
+     * scenario, we avoid the *need of an extra Xform entirely.
+     * \return The Xform split requirement for this object.
+     */
+    MaxUSDAPI virtual MaxUsd::XformSplitRequirement RequiresXformPrim()
+    {
+        return MaxUsd::XformSplitRequirement::ForOffsetObjects;
+    };
+
+    /**
+     * \brief Whether or not we want to manually handle the object offset transform in the Write(). If we
+     * return true here, then the applyOffsetTransform argument of Write() can sometimes be set to
+     * true.
+     * \return True if the prim writer intends to handle the object offset transform, false otherwise.
+     */
+    MaxUSDAPI virtual bool HandlesObjectOffsetTransform() { return false; };
+
+    /**
+     * \brief Returns the material assignment requirement for this node. Some prim writers may not want the prims
+     * they produce to be assigned the source node's material automatically.
+     * \return The material assignment requirement.
+     */
+    MaxUSDAPI virtual MaxUsd::MaterialAssignRequirement RequiresMaterialAssignment()
+    {
+        return MaxUsd::MaterialAssignRequirement::Default;
+    };
+
+    /**
+     * \brief Returns the instancing requirement for this Prim Writer. Some Prim Writers may want to handle instancing
+     * themselves, or disable it entirely.
+     * \return The instancing requirement. If default, instancing is handled automatically. Otherwise, it is left to the
+     * Prim writer to decide what to do.
+     */
+    MaxUSDAPI virtual MaxUsd::InstancingRequirement RequiresInstancing()
+    {
+        return MaxUsd::InstancingRequirement::Default;
+    };
+
+    /**
+     * \brief Returns the validity interval of the data that this writer exports from a certain 3dsMax time value.
+     * From this information, we can figure out frames need to be exported from this object. For
+     * example, a writer which does not export any animated data may override this and return the
+     * FOREVER interval, i.e. what is exported in the first call to Write() will be valid at every
+     * other time. The default implementation returns the validity interval of the object itself at
+     * the given time.
+     * \param time The 3dsMax time value.
+     * \return The export's validity interval.
+     */
+    MaxUSDAPI virtual Interval GetValidityInterval(const TimeValue& time);
+
+    MaxUSDAPI const UsdStageRefPtr& GetUsdStage() const;
+    MaxUSDAPI const std::string&          GetFilename() const;
+    MaxUSDAPI virtual boost::python::dict GetNodesToPrims() const;
+
+protected:
+    /// Gets the current global export args in effect.
+    MaxUSDAPI const MaxUsd::USDSceneBuilderOptions& GetExportArgs() const;
+    MaxUSDAPI const MaxUsdWriteJobContext&          GetJobContext() const;
+    MaxUSDAPI INode*                                GetNode() const;
+
+private:
+    const MaxUsdWriteJobContext& writeJobCtx;
+    INode*                       node;
+};
+
+typedef std::shared_ptr<MaxUsdPrimWriter> MaxUsdPrimWriterSharedPtr;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimWriterRegistry.cpp b/src/MaxUsd/Translators/PrimWriterRegistry.cpp
new file mode 100644
index 0000000..fc18168
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimWriterRegistry.cpp
@@ -0,0 +1,160 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "PrimWriterRegistry.h"
+
+#include "RegistryHelper.h"
+
+#include <MaxUsd/debugCodes.h>
+
+#include <pxr/base/tf/debug.h>
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/stl.h>
+#include <pxr/pxr.h>
+
+#include <map>
+#include <string>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+    (MaxUsd)
+        (PrimWriter)
+);
+// clang-format on
+
+struct PrimWriterRegistryEntry
+{
+    MaxUsdPrimWriterRegistry::WriterFactoryFn    factoryFunction;
+    MaxUsdPrimWriterRegistry::ContextPredicateFn predicateFunction;
+};
+
+using _Registry = std::map<std::string, PrimWriterRegistryEntry>;
+static _Registry _reg;
+
+static std::vector<PrimWriterRegistryEntry> _baseWriters;
+
+void MaxUsdPrimWriterRegistry::Register(
+    const std::string& key,
+    WriterFactoryFn    fn,
+    ContextPredicateFn pred,
+    bool               fromPython)
+{
+    TF_DEBUG(PXR_MAXUSD_REGISTRY).Msg("Registering MaxUsdPrimWriter %s.\n", key.c_str());
+
+    std::pair<_Registry::iterator, bool> insertStatus = _reg.insert({ key, { fn, pred } });
+    if (insertStatus.second) {
+        MaxUsd_RegistryHelper::AddUnloader([key]() { _reg.erase(key); }, fromPython);
+    } else {
+        TF_CODING_ERROR("Multiple writers for sharing unique name %s", key.c_str());
+    }
+}
+
+void MaxUsdPrimWriterRegistry::RegisterBaseWriter(WriterFactoryFn fn, ContextPredicateFn pred)
+{
+    _baseWriters.push_back({ fn, pred });
+}
+
+void MaxUsdPrimWriterRegistry::Unregister(const std::string& key) { _reg.erase(key); }
+
+MaxUsdPrimWriterSharedPtr MaxUsdPrimWriterRegistry::FindWriter(
+    const MaxUsdWriteJobContext& jobCtx,
+    INode*                       node,
+    size_t&                      numRegistered)
+{
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdPrimWriterRegistry>();
+
+    // Add prim writers via plugin load:
+    static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->PrimWriter };
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(SCOPE);
+
+    std::vector<PrimWriterRegistryEntry> writers;
+    std::vector<PrimWriterRegistryEntry> fallbackWriters;
+
+    auto addWriter =
+        [&writers, &fallbackWriters, &jobCtx, node](const PrimWriterRegistryEntry& writerBuilder) {
+            const auto supportLevel = writerBuilder.predicateFunction(node, jobCtx.GetArgs());
+            switch (supportLevel) {
+            case MaxUsdPrimWriter::ContextSupport::Supported:
+                writers.push_back(writerBuilder);
+                break;
+            case MaxUsdPrimWriter::ContextSupport::Fallback:
+                fallbackWriters.push_back(writerBuilder);
+                break;
+            case MaxUsdPrimWriter::ContextSupport::Unsupported:
+            default: return;
+            }
+        };
+
+    TF_FOR_ALL(entry, _reg)
+    {
+        auto writerBuilder = entry->second;
+        addWriter(writerBuilder);
+    }
+
+    numRegistered = writers.size() + fallbackWriters.size();
+
+    TF_FOR_ALL(entry, _baseWriters)
+    {
+        auto writerBuilder = *entry;
+        addWriter(writerBuilder);
+    }
+
+    writers.insert(writers.end(), fallbackWriters.begin(), fallbackWriters.end());
+
+    if (writers.empty()) {
+        return nullptr;
+    }
+
+    return writers[0].factoryFunction(jobCtx, node);
+}
+
+bool MaxUsdPrimWriterRegistry::CanBeExported(
+    INode*                                node,
+    const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    auto canBeExported = [&exportArgs, node](const PrimWriterRegistryEntry& writerBuilder) {
+        if (writerBuilder.predicateFunction(node, exportArgs)
+            != MaxUsdPrimWriter::ContextSupport::Unsupported) {
+            return true;
+        }
+        return false;
+    };
+
+    TF_FOR_ALL(entry, _reg)
+    {
+        auto writerBuilder = entry->second;
+        if (canBeExported(writerBuilder)) {
+            return true;
+        }
+    }
+
+    TF_FOR_ALL(entry, _baseWriters)
+    {
+        auto writerBuilder = *entry;
+        if (canBeExported(writerBuilder)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/PrimWriterRegistry.h b/src/MaxUsd/Translators/PrimWriterRegistry.h
new file mode 100644
index 0000000..22ee244
--- /dev/null
+++ b/src/MaxUsd/Translators/PrimWriterRegistry.h
@@ -0,0 +1,142 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+#include "PrimWriter.h"
+#include "RegistryHelper.h"
+#include "WriteJobContext.h"
+
+#include <pxr/pxr.h>
+
+#include <functional>
+#include <string>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/**
+ * \brief Provides functionality to register and lookup USD writer plugins
+ * for 3dsMax nodes.
+ *
+ * Use PXR_MAXUSD_REGISTER_WRITER(uniqueName, writerClass) to register a writer
+ * class with the registry.
+ *
+ * Prim writers derive from the PrimWriter class and are expected to implement
+ * several methods to specify what objects they are able to support, and how to actually
+ * perform the conversion.
+
+ * In order for the core system to discover the plugin at export time, you need a
+ * plugInfo.json specifying the plugin's type.
+ * \code
+ * {
+ *   "Plugins":[
+ *      {
+ *         "Info":{
+ *            "MaxUsd":{
+ *               "PrimWriter" : {}
+ *            }
+ *         },
+ *         "Name":"myTranslatorPlugin",
+ *         "Type":"library",
+ *         "LibraryPath":"myTranslatorPlugin.dll"
+ *      }
+ *   ]
+ * }
+ * \endcode
+ */
+struct MaxUsdPrimWriterRegistry
+{
+    // Writer factory function, i.e. a function that creates a prim writer
+    // for the given 3dsMax export job context.
+    typedef std::function<MaxUsdPrimWriterSharedPtr(const MaxUsdWriteJobContext&, INode*)>
+        WriterFactoryFn;
+
+    // Predicate function, i.e. a function that can tell the level of support
+    // the writer function will provide for a given set of export options.
+    using ContextPredicateFn = std::function<
+        MaxUsdPrimWriter::ContextSupport(INode*, const MaxUsd::USDSceneBuilderOptions&)>;
+
+    /**
+     * \brief Register a new prim writer via it's factory function.
+     * \param A unique key for the writer. If not unique, an error is returned.
+     * \param fn A factory function providing a MaxUsdPrimWriter subclass that can be used to write.
+     * \param pred Predicate function used to know if this PrimWriter can be used to translate a node.
+     * \param fromPython  true if the writer is registered from python.
+     */
+    MaxUSDAPI static void Register(
+        const std::string& key,
+        WriterFactoryFn    fn,
+        ContextPredicateFn pred,
+        bool               fromPython = false);
+
+    /**
+     * \brief Register a new base prim writer. Base Writers are the last evaluated prim writers.
+     * They are not part of the prim reader registry since they act as a fallback mechanism for the
+     * exporter. The order by which they are registered is also important to counter the 3ds Max
+     * node 'polymorphism'.
+     * \param fn A factory function providing a MaxUsdPrimWriter subclass that can be used to write.
+     * \param pred Predicate function used to know if this PrimWriter can be used to translate a node.
+     */
+    MaxUSDAPI static void RegisterBaseWriter(WriterFactoryFn fn, ContextPredicateFn pred);
+
+    /**
+     * \brief Unregisters a prim writer.
+     * \param key The unique key for the writer.
+     */
+    MaxUSDAPI static void Unregister(const std::string& key);
+
+    /**
+     * \brief Returns prim writers which can be used to translate a given object, given from a list of candidate writers.
+     * Prioritize ContextSupport::Supported over ContextSupport::Fallback. Other than this, writers
+     * are returned in the order they are they are received as candidates.
+     * \param node The 3dsMax node we are finding a writer for.
+     * \param candidateWriters A vector of candidate prim writers, to be filtered.
+     * \return Ordered list of applicable prim writers (Writers with explicit support first, followed with writers that can be
+     * used as fallback for this object).
+     */
+    MaxUSDAPI static MaxUsdPrimWriterSharedPtr
+    FindWriter(const MaxUsdWriteJobContext& jobCtx, INode* node, size_t& numRegistered);
+
+    /**
+     * \brief Checks if a node can be exported by any of the available prim writers, considering
+     * the given export options.
+     * \param node The node to check for exportability.
+     * \param exportArgs Export options to consider.
+     * \return True, if the node can be exported by a prim writer.
+     */
+    MaxUSDAPI static bool
+    CanBeExported(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+};
+
+#define PXR_MAXUSD_REGISTER_WRITER(writerClass)                                         \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimWriterRegistry, writerName##_##writerClass) \
+    {                                                                                   \
+        static_assert(                                                                  \
+            std::is_base_of<MaxUsdPrimWriter, writerClass>::value,                      \
+            #writerClass " must derive from MaxUsdPrimWriter");                         \
+        static_assert(                                                                  \
+            HasCanExport<writerClass>::value,                                           \
+            #writerClass " must define a static CanExport() function");                 \
+                                                                                        \
+        MaxUsdPrimWriterRegistry::Register(                                             \
+            #writerClass,                                                               \
+            [](const MaxUsdWriteJobContext& jobCtx, INode* node) {                      \
+                return std::make_shared<writerClass>(jobCtx, node);                     \
+            },                                                                          \
+            &writerClass::CanExport);                                                   \
+    }
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/ReadJobContext.cpp b/src/MaxUsd/Translators/ReadJobContext.cpp
new file mode 100644
index 0000000..cf6d03d
--- /dev/null
+++ b/src/MaxUsd/Translators/ReadJobContext.cpp
@@ -0,0 +1,170 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <inode.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdReadJobContext::MaxUsdReadJobContext(
+    const MaxUsd::MaxSceneBuilderOptions& args,
+    const UsdStageRefPtr&                 stage)
+    : args(args)
+    , referenceTargetMap(new ReferenceTargetRegistry)
+    , prune(false)
+    , stage(stage)
+{
+}
+
+const MaxUsdReadJobContext::ReferenceTargetRegistry&
+MaxUsdReadJobContext::GetReferenceTargetRegistry() const
+{
+    return *referenceTargetMap;
+}
+
+RefTargetHandle
+MaxUsdReadJobContext::GetMaxRefTargetHandle(const SdfPath& path, bool findAncestors) const
+{
+    // Get Node parent
+    for (SdfPath parentPath = path; !parentPath.IsEmpty();
+         parentPath = parentPath.GetParentPath()) {
+        // retrieve from a registry if it exists
+        ReferenceTargetRegistry::const_iterator it = referenceTargetMap->find(parentPath);
+        if (it != referenceTargetMap->end()) {
+            return it->second;
+        }
+
+        if (!findAncestors) {
+            break;
+        }
+    }
+    return nullptr;
+}
+
+INode* MaxUsdReadJobContext::GetMaxNode(const SdfPath& path, bool findAncestors) const
+{
+    return dynamic_cast<INode*>(GetMaxRefTargetHandle(path, findAncestors));
+}
+
+void MaxUsdReadJobContext::RegisterNewMaxRefTargetHandle(
+    const SdfPath&  path,
+    RefTargetHandle maxNode)
+{
+    referenceTargetMap->insert({ path, maxNode });
+}
+
+void MaxUsdReadJobContext::RemoveNode(INode* node)
+{
+    ReferenceTargetRegistry::iterator iter = referenceTargetMap->begin();
+    ReferenceTargetRegistry::iterator iterEnd = referenceTargetMap->end();
+    for (; iter != iterEnd; ++iter) {
+        if (iter->second == node) {
+            break;
+        }
+    }
+    if (iter != iterEnd) {
+        referenceTargetMap->erase(iter);
+    }
+}
+
+void MaxUsdReadJobContext::GetAllCreatedNodes(std::vector<INode*>& nodes) const
+{
+    for (const auto& item : *referenceTargetMap) {
+        if (INode* node = dynamic_cast<INode*>(item.second)) {
+            nodes.push_back(node);
+        }
+    }
+}
+
+bool MaxUsdReadJobContext::GetPruneChildren() const { return prune; }
+
+/// Sets whether traversal should automatically continue into this prim's
+/// children. This only has an effect if set during the
+/// MaxUsdPrimReader::Read() step, and not in the
+/// MaxUsdPrimReader::PostReadSubtree() step, since in the latter, the
+/// children have already been processed.
+void MaxUsdReadJobContext::SetPruneChildren(bool prune) { this->prune = prune; }
+
+void MaxUsdReadJobContext::RescaleRegisteredNodes() const
+{
+    INodeTab tab;
+
+    // Workaround : rescaling the world units of skin/bones is broken.
+    // To work around the issue, save the bone properties toggle off the
+    // bone-ness and reapply them once we are done.
+
+    struct NodeBone
+    {
+        INode* node;
+        BOOL   autoAlign = FALSE;
+        BOOL   freezeLen = FALSE;
+        INT    scaleType = BONE_SCALETYPE_NONE;
+        BOOL   axisFlip = FALSE;
+        INT    boneAxis = BONE_AXIS_Z;
+        BOOL   showBone = FALSE;
+
+        Quat offsetRot;
+    };
+
+    std::vector<NodeBone> boneNodes;
+    for (auto it = referenceTargetMap->begin(); it != referenceTargetMap->end(); it++) {
+        if (INode* node = dynamic_cast<INode*>(it->second)) {
+            tab.Append(1, &node);
+
+            if (node->GetBoneNodeOnOff()) {
+                boneNodes.emplace_back(NodeBone { node,
+                                                  node->GetBoneAutoAlign(),
+                                                  node->GetBoneFreezeLen(),
+                                                  node->GetBoneScaleType(),
+                                                  node->GetBoneAxisFlip(),
+                                                  node->GetBoneAxis(),
+                                                  node->IsBoneShowing(),
+                                                  node->GetObjOffsetRot() });
+
+                node->SetBoneNodeOnOff(FALSE, 0);
+            }
+        }
+    }
+
+    GetCOREInterface()->ClearNodeSelection();
+    GetCOREInterface()->SelectNodeTab(tab, TRUE, FALSE);
+    GetCOREInterface()->RescaleWorldUnits(
+        static_cast<float>(MaxUsd::GetUsdToMaxScaleFactor(stage)), true);
+
+    for (auto boneNode : boneNodes) {
+        const auto node = boneNode.node;
+        node->SetBoneNodeOnOff(TRUE, 0);
+        node->SetBoneAutoAlign(boneNode.autoAlign);
+        node->SetBoneFreezeLen(boneNode.freezeLen);
+        node->SetBoneScaleType(boneNode.scaleType);
+        node->SetBoneAxisFlip(boneNode.axisFlip);
+        node->SetBoneAxis(boneNode.boneAxis);
+        node->ShowBone(boneNode.showBone);
+        node->SetObjOffsetRot(boneNode.offsetRot);
+    }
+
+    for (const auto bone : boneNodes) {
+        bone.node->ResetBoneStretch(0);
+    }
+
+    for (const auto bone : boneNodes) {
+        bone.node->SetObjOffsetRot(bone.offsetRot);
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ReadJobContext.h b/src/MaxUsd/Translators/ReadJobContext.h
new file mode 100644
index 0000000..757aa00
--- /dev/null
+++ b/src/MaxUsd/Translators/ReadJobContext.h
@@ -0,0 +1,95 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/usd/common.h>
+
+#include <ref.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \class MaxUsdReadJobContext
+/// \brief This class provides an interface for reader plugins to communicate
+/// state back to the core usd 3ds Max logic as well as retrieve information set by
+/// other plugins.
+class MaxUsdReadJobContext
+{
+public:
+    MaxUSDAPI
+    MaxUsdReadJobContext(const MaxUsd::MaxSceneBuilderOptions& args, const UsdStageRefPtr& stage);
+
+    MaxUSDAPI ~MaxUsdReadJobContext() = default;
+
+    /**
+     * \brief Returns the export arguments.
+     * \return Export arguments
+     */
+    const MaxUsd::MaxSceneBuilderOptions& GetArgs() const { return args; }
+
+    typedef std::map<SdfPath, RefTargetHandle> ReferenceTargetRegistry;
+    MaxUSDAPI const ReferenceTargetRegistry&   GetReferenceTargetRegistry() const;
+
+    /// \brief Returns the prim was registered at path.  If findAncestors
+    /// is true and no object was found for path, this will return the object
+    /// that corresponding to its nearest ancestor.
+    ///
+    /// Returns an invalid reference if no such object exists.
+    MaxUSDAPI RefTargetHandle GetMaxRefTargetHandle(const SdfPath& path, bool findAncestors) const;
+    MaxUSDAPI INode*          GetMaxNode(const SdfPath& path, bool findAncestors) const;
+
+    /// \brief Record maxNode prim as being created path.
+    MaxUSDAPI void RegisterNewMaxRefTargetHandle(const SdfPath& path, RefTargetHandle maxNode);
+
+    /// \brief Retrieve all 3ds Max Node created during the import process
+    MaxUSDAPI void GetAllCreatedNodes(std::vector<INode*>& nodes) const;
+
+    /// \brief Remove a registered INode
+    /// (to remove prototype Nodes that were created during the import process)
+    MaxUSDAPI void RemoveNode(INode* node);
+
+    /// \brief returns true if prim traversal of the children of the current
+    /// node can be pruned.
+    MaxUSDAPI bool GetPruneChildren() const;
+
+    /// \brief If a reader takes care of reading all of its children, it
+    /// should SetPruneChildren(true).
+    MaxUSDAPI void SetPruneChildren(bool prune);
+
+    MaxUSDAPI const UsdStageRefPtr GetStage() const { return stage; }
+
+    /// \brief Rescale all nodes registered on the read job context.
+    ///	The rescaling uses the stage units and the current max units to
+    MaxUSDAPI void RescaleRegisteredNodes() const;
+
+private:
+    // Args for the import (any & all export options).
+    const MaxUsd::MaxSceneBuilderOptions& args;
+
+    // used to keep track of prims that are created.
+    ReferenceTargetRegistry* referenceTargetMap;
+
+    // is the current prim reader handling its descendants (pruning the scene tree)
+    bool prune;
+
+    // imported stage reference
+    const UsdStageRefPtr stage;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/RegistryHelper.cpp b/src/MaxUsd/Translators/RegistryHelper.cpp
new file mode 100644
index 0000000..c898eee
--- /dev/null
+++ b/src/MaxUsd/Translators/RegistryHelper.cpp
@@ -0,0 +1,250 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "RegistryHelper.h"
+
+#include <MaxUsd/DebugCodes.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/js/converter.h>
+#include <pxr/base/plug/plugin.h>
+#include <pxr/base/plug/registry.h>
+#include <pxr/base/tf/debug.h>
+#include <pxr/base/tf/scriptModuleLoader.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/stl.h>
+#include <pxr/base/tf/stringUtils.h>
+
+#include <boost/python/import.hpp>
+#include <map>
+#include <maxapi.h>
+#include <maxtypes.h>
+#include <vector>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+	_tokens,
+
+	(providesTranslator)
+);
+// clang-format on
+
+template <typename T> bool _GetData(const JsValue& any, T* val)
+{
+    if (!any.Is<T>()) {
+        TF_CODING_ERROR("bad plugInfo.json");
+        return false;
+    }
+
+    *val = any.Get<T>();
+    return true;
+}
+
+template <typename T> bool _GetData(const JsValue& any, std::vector<T>* val)
+{
+    if (!any.IsArrayOf<T>()) {
+        TF_CODING_ERROR("bad plugInfo.json");
+        return false;
+    }
+
+    *val = any.GetArrayOf<T>();
+    return true;
+}
+
+static bool _ReadNestedDict(const JsObject& data, const std::vector<TfToken>& keys, JsObject* dict)
+{
+    JsObject currDict = data;
+    TF_FOR_ALL(iter, keys)
+    {
+        const TfToken& currKey = *iter;
+        JsValue        any;
+        if (!TfMapLookup(currDict, currKey, &any)) {
+            return false;
+        }
+
+        if (!any.IsObject()) {
+            TF_CODING_ERROR("bad plugInfo data.");
+            return false;
+        }
+        currDict = any.GetJsObject();
+    }
+    *dict = currDict;
+    return true;
+}
+
+static bool _ProvidesForType(
+    const PlugPluginPtr&        plug,
+    const std::vector<TfToken>& scope,
+    const std::string&          typeName)
+{
+    JsObject metadata = plug->GetMetadata();
+    JsObject maxTranslatorMetadata;
+    if (!_ReadNestedDict(metadata, scope, &maxTranslatorMetadata)) {
+        return false;
+    }
+
+    JsValue any;
+    if (!TfMapLookup(maxTranslatorMetadata, _tokens->providesTranslator, &any)) {
+        return false;
+    }
+
+    std::vector<std::string> translatedTypes;
+    if (!_GetData(any, &translatedTypes)) {
+        return false;
+    }
+
+    bool provides = std::find(translatedTypes.begin(), translatedTypes.end(), typeName)
+        != translatedTypes.end();
+    return provides;
+}
+
+static bool _IsSpecificToScope(const PlugPluginPtr& plug, const std::vector<TfToken>& scope)
+{
+    JsObject metadata = plug->GetMetadata();
+    JsObject maxTranslatorMetadata;
+    if (!_ReadNestedDict(metadata, scope, &maxTranslatorMetadata)) {
+        return false;
+    }
+
+    return true;
+}
+
+/* static */
+std::string _PluginDictScopeToDebugString(const std::vector<TfToken>& scope)
+{
+    std::vector<std::string> s;
+    TF_FOR_ALL(iter, scope) { s.push_back(iter->GetString()); }
+    return TfStringJoin(s, "/");
+}
+
+/* static */
+void MaxUsd_RegistryHelper::FindAndLoadMaxPlug(
+    const std::vector<TfToken>& scope,
+    const Class_ID&             maxClassID,
+    const SClass_ID&            superClassID)
+{
+    // convert 3ds Max Class ID to to 3ds Max Class Names
+    auto classDesc = GetCOREInterface()->GetDllDir().ClassDir().FindClass(superClassID, maxClassID);
+    if (!classDesc) {
+        // the provided ClassID was not properly registered
+        return;
+    }
+    std::string className = MaxUsd::GetNonLocalizedClassName(classDesc);
+
+    return FindAndLoadMaxPlug(scope, className);
+}
+
+/* static */
+void MaxUsd_RegistryHelper::FindAndLoadMaxPlug(
+    const std::vector<TfToken>& scope,
+    const std::string&          usdTypeName)
+{
+    PlugPluginPtrVector plugins = PlugRegistry::GetInstance().GetAllPlugins();
+    TF_FOR_ALL(plugIter, plugins)
+    {
+        PlugPluginPtr plug = *plugIter;
+        if (_ProvidesForType(plug, scope, usdTypeName)) {
+            // load what we found so far
+            {
+                TF_DEBUG(PXR_MAXUSD_REGISTRY)
+                    .Msg(
+                        "Found %s MaxUsd plugin %s: %s = %s.\n",
+                        plug->IsLoaded() ? "loaded" : "unloaded",
+                        plug->GetName().c_str(),
+                        _PluginDictScopeToDebugString(scope).c_str(),
+                        usdTypeName.c_str());
+                // Make sure that the Plug plugin is loaded to ensure that the
+                // library is loaded in case it is a "library" type plugin with
+                // no accompanying Max plugin. This is a noop if the plugin is
+                // already loaded.
+                plug->Load();
+            }
+            // Continue search. For shaders, we can have multiple importers and exporters for the
+            // same Max node. A PhysicalMaterial can be exported as UsdPreviewSurface, MaterialX,
+            // Arnold, PRman...
+        }
+    }
+}
+
+/* static */
+void MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(const std::vector<TfToken>& scope)
+{
+    auto scopeString = [scope]() {
+        std::string str;
+        for (const auto& item : scope) {
+            str += item;
+            str += ":";
+        }
+        str.pop_back();
+        return str;
+    };
+
+    PlugPluginPtrVector plugins = PlugRegistry::GetInstance().GetAllPlugins();
+    TF_FOR_ALL(plugIter, plugins)
+    {
+        PlugPluginPtr plug = *plugIter;
+        if (_IsSpecificToScope(plug, scope)) {
+            {
+                TF_DEBUG(PXR_MAXUSD_REGISTRY)
+                    .Msg(
+                        "Found %s plugin %s: Loading via USD API.\n",
+                        scopeString().c_str(),
+                        plug->GetName().c_str());
+                // This is a noop if the plugin is already loaded.
+                plug->Load();
+            }
+        }
+    }
+}
+
+// Vector of Python unloaders
+std::vector<std::function<void()>> g_pythonUnloaders;
+
+static void PythonUnload(size_t unloaderIndex)
+{
+    g_pythonUnloaders[unloaderIndex]();
+    // No destruction to keep the order, there should not be a lot of elements
+}
+
+/* static */
+void MaxUsd_RegistryHelper::AddUnloader(const std::function<void()>& func, bool fromPython)
+{
+    if (fromPython) {
+        g_pythonUnloaders.emplace_back(func);
+        if (boost::python::import("atexit")
+                .attr("register")(&PythonUnload, g_pythonUnloaders.size() - 1)
+                .is_none()) {
+            TF_CODING_ERROR("Couldn't register unloader to atexit");
+        }
+        return;
+    }
+
+    if (TfRegistryManager::GetInstance().AddFunctionForUnload(func)) {
+        // It is likely that the registering plugin library is opened/closed
+        // by Max and not via TfDlopen/TfDlclose. This means that the
+        // unloaders won't be invoked unless we use RunUnloadersAtExit(),
+        // which allows unloaders to be called from normal dlclose().
+        TfRegistryManager::GetInstance().RunUnloadersAtExit();
+    } else {
+        TF_CODING_ERROR("Couldn't add unload function (was this function called from "
+                        "outside a TF_REGISTRY_FUNCTION block?)");
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/RegistryHelper.h b/src/MaxUsd/Translators/RegistryHelper.h
new file mode 100644
index 0000000..6cb1d03
--- /dev/null
+++ b/src/MaxUsd/Translators/RegistryHelper.h
@@ -0,0 +1,122 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+
+#include <functional>
+#include <maxtypes.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// private helper so that both reader/writer registries can share the same
+/// plugin discovery/load mechanism.
+struct MaxUsd_RegistryHelper
+{
+    /// searches plugInfo's for 'value' at the specified 'scope'.
+    ///
+    /// The scope are the nested keys to search through in the plugInfo (for
+    /// example, ["MaxUsd", "ShaderWriter"].
+    ///
+    /// {
+    ///   'MaxUsd': {
+    ///     'ShaderWriter': {
+    ///       'providesTranslator': [
+    ///          "PhysicalMaterial",
+    ///          ...
+    ///       ],
+    ///     }
+    ///   }
+    /// }
+    ///
+    static void FindAndLoadMaxPlug(
+        const std::vector<TfToken>& scope,
+        const Class_ID&             value,
+        const SClass_ID&            superClassID);
+    static void
+    FindAndLoadMaxPlug(const std::vector<TfToken>& scope, const std::string& usdTypeName);
+
+    /// Searches the plugInfos and looks for plugins specified scope.
+    /// (scope example below)
+    ///
+    /// "MaxUsd" : {
+    ///     "PrimWriter" : {}
+    /// }
+    static void FindAndLoadMaxUsdPlugs(const std::vector<TfToken>& scope);
+
+    static void AddUnloader(const std::function<void()>& func, bool fromPython = false);
+};
+
+/// SFINAE utility class to detect the presence of a CanExport static function
+/// inside a writer class. Used by the registration macro for basic writers.
+template <typename T> class HasCanExport
+{
+    typedef char _One;
+    struct _Two
+    {
+        char _x[2];
+    };
+
+    template <typename C> static _One _Test(decltype(&C::CanExport));
+    template <typename C> static _Two _Test(...);
+
+public:
+    enum
+    {
+        value = sizeof(_Test<T>(0)) == sizeof(char)
+    };
+};
+
+/// SFINAE utility class to detect the presence of a IsMaterialTargetAgnostic static function
+/// inside a writer class. Used by the registration macro for basic writers.
+template <typename T> class HasIsMaterialTargetAgnostic
+{
+    typedef char _One;
+    struct _Two
+    {
+        char _x[2];
+    };
+
+    template <typename C> static _One _Test(decltype(&C::IsMaterialTargetAgnostic));
+    template <typename C> static _Two _Test(...);
+
+public:
+    enum
+    {
+        value = sizeof(_Test<T>(0)) == sizeof(char)
+    };
+};
+
+// Function template that returns a pointer to IsMaterialTargetAgnostic if it exists
+template <typename T>
+auto IsMaterialTargetAgnosticFunc() ->
+    typename std::enable_if<HasIsMaterialTargetAgnostic<T>::value, std::function<bool()>>::type
+{
+    return &T::IsMaterialTargetAgnostic;
+}
+
+// Function template that returns a lambda if IsMaterialTargetAgnostic doesn't exist
+template <typename T>
+auto IsMaterialTargetAgnosticFunc() ->
+    typename std::enable_if<!HasIsMaterialTargetAgnostic<T>::value, std::function<bool()>>::type
+{
+    return []() -> bool { return false; };
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderReader.cpp b/src/MaxUsd/Translators/ShaderReader.cpp
new file mode 100644
index 0000000..06f40a1
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderReader.cpp
@@ -0,0 +1,54 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShaderReader.h"
+
+#include "ReadJobContext.h"
+#include "ShadingModeImporter.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/attribute.h>
+#include <pxr/usd/usd/prim.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdShaderReader::MaxUsdShaderReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+    : MaxUsdPrimReader(prim, jobCtx)
+{
+}
+
+/* static */
+MaxUsdShaderReader::ContextSupport
+MaxUsdShaderReader::CanImport(const MaxUsd::MaxSceneBuilderOptions&)
+{
+    // Default value for all readers is Fallback. More specialized writers can
+    // override the base CanImport to report Supported/Unsupported as necessary.
+    return ContextSupport::Fallback;
+}
+
+Mtl* MaxUsdShaderReader::GetCreatedMaterial(
+    const MaxUsdShadingModeImportContext& context,
+    const UsdPrim&                        prim) const
+{
+    Mtl* maxObject = nullptr;
+    context.GetCreatedMaterial(prim, &maxObject);
+    return maxObject;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderReader.h b/src/MaxUsd/Translators/ShaderReader.h
new file mode 100644
index 0000000..52dc892
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderReader.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "PrimReader.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/usdShade/shader.h>
+
+#include <Materials/Mtl.h>
+#include <memory>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class TfToken;
+class MaxUsdPrimReaderArgs;
+class MaxUsdShadingModeImportContext;
+class UsdShadeShader;
+
+/// Base class for USD prim readers that import USD shader prims as 3ds Max materials.
+class MaxUsdShaderReader : public MaxUsdPrimReader
+{
+public:
+    MaxUSDAPI MaxUsdShaderReader(const UsdPrim&, MaxUsdReadJobContext&);
+
+    /// This static function is expected for all shader readers and allows
+    /// declaring how well this class can support the current context:
+    MaxUSDAPI static ContextSupport CanImport(const MaxUsd::MaxSceneBuilderOptions& importArgs);
+
+    /// Gets the 3ds Max material that was created by this reader
+    MaxUSDAPI virtual Mtl*
+    GetCreatedMaterial(const MaxUsdShadingModeImportContext&, const UsdPrim& prim) const;
+};
+
+typedef std::shared_ptr<MaxUsdShaderReader> MaxUsdShaderReaderSharedPtr;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderReaderRegistry.cpp b/src/MaxUsd/Translators/ShaderReaderRegistry.cpp
new file mode 100644
index 0000000..4512f5d
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderReaderRegistry.cpp
@@ -0,0 +1,155 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShaderReaderRegistry.h"
+
+#include "RegistryHelper.h"
+
+#include <MaxUsd/DebugCodes.h>
+
+#include <pxr/base/plug/registry.h>
+#include <pxr/base/tf/debug.h>
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/stl.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+
+#include <string>
+#include <unordered_map>
+#include <utility>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    (MaxUsd)
+        (ShaderReader)
+);
+// clang-format on
+
+namespace {
+struct _RegistryEntry
+{
+    MaxUsdShaderReaderRegistry::ContextPredicateFn _pred;
+    MaxUsdShaderReaderRegistry::ReaderFactoryFn    _fn;
+    int                                            _index;
+};
+
+typedef std::unordered_multimap<TfToken, _RegistryEntry, TfToken::HashFunctor> _Registry;
+static _Registry                                                               _reg;
+static int                                                                     _indexCounter = 0;
+
+_Registry::const_iterator
+_Find(const TfToken& usdInfoId, const MaxUsd::MaxSceneBuilderOptions& importArgs)
+{
+    using ContextSupport = MaxUsdShaderReader::ContextSupport;
+
+    _Registry::const_iterator ret = _reg.cend();
+    _Registry::const_iterator first, last;
+    std::tie(first, last) = _reg.equal_range(usdInfoId);
+    while (first != last) {
+        ContextSupport support = first->second._pred(importArgs);
+        if (support == ContextSupport::Supported) {
+            ret = first;
+            break;
+        } else if (support == ContextSupport::Fallback && ret == _reg.end()) {
+            ret = first;
+        }
+        ++first;
+    }
+
+    return ret;
+}
+} // namespace
+
+/* static */
+void MaxUsdShaderReaderRegistry::Register(
+    TfToken                                        usdInfoId,
+    MaxUsdShaderReaderRegistry::ContextPredicateFn pred,
+    MaxUsdShaderReaderRegistry::ReaderFactoryFn    fn,
+    bool                                           fromPython)
+{
+    int index = _indexCounter++;
+    TF_DEBUG(PXR_MAXUSD_REGISTRY)
+        .Msg(
+            "Registering MaxUsdShaderReader for info:id %s with index %d.\n",
+            usdInfoId.GetText(),
+            index);
+    auto id = usdInfoId.GetString();
+    _reg.insert(std::make_pair(usdInfoId, _RegistryEntry { pred, fn, index }));
+
+    // The unloader uses the index to know which entry to erase when there are
+    // more than one for the same usdInfoId.
+    //
+    // TODO: The decision to remember that a type was not registered will have
+    //       to be revisited at some point. Loading a plugin creates an
+    //       opportunity to discover more readers... as long as we stop
+    //       registering nullptrs.
+    if (fn) {
+        MaxUsd_RegistryHelper::AddUnloader(
+            [usdInfoId, index]() {
+                _Registry::const_iterator it, itEnd;
+                std::tie(it, itEnd) = _reg.equal_range(usdInfoId);
+                for (; it != itEnd; ++it) {
+                    if (it->second._index == index) {
+                        _reg.erase(it);
+                        break;
+                    }
+                }
+            },
+            fromPython);
+    }
+}
+
+/* static */
+MaxUsdShaderReaderRegistry::ReaderFactoryFn MaxUsdShaderReaderRegistry::Find(
+    const TfToken&                        usdInfoId,
+    const MaxUsd::MaxSceneBuilderOptions& importArgs)
+{
+    using ContextSupport = MaxUsdShaderReader::ContextSupport;
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShaderReaderRegistry>();
+
+    _Registry::const_iterator it = _Find(usdInfoId, importArgs);
+
+    if (it != _reg.end()) {
+        return it->second._fn;
+    }
+
+    // Try adding more writers via plugin load:
+    static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->ShaderReader };
+    MaxUsd_RegistryHelper::FindAndLoadMaxPlug(SCOPE, usdInfoId);
+
+    it = _Find(usdInfoId, importArgs);
+
+    if (it != _reg.end()) {
+        return it->second._fn;
+    }
+
+    if (_reg.count(usdInfoId) == 0) {
+        // Nothing registered at all, remember that:
+        Register(
+            usdInfoId,
+            [](const MaxUsd::MaxSceneBuilderOptions&) { return ContextSupport::Fallback; },
+            nullptr);
+    }
+
+    return nullptr;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderReaderRegistry.h b/src/MaxUsd/Translators/ShaderReaderRegistry.h
new file mode 100644
index 0000000..3965b75
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderReaderRegistry.h
@@ -0,0 +1,146 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+#include "ShaderReader.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+
+#include <functional>
+#include <string>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \class MaxUsdShaderReaderRegistry
+/// \brief Provides functionality to register and lookup USD shader reader
+/// plugins for 3ds Max nodes.
+///
+/// Use PXR_MAXUSD_REGISTER_SHADER_READER(usdInfoId, readerClass) to register a
+/// reader class with the registry.
+///
+/// In order for the core system to discover the plugin, you need a
+/// \c plugInfo.json that contains the usdInfoId:
+/// \code
+/// {
+///   "Plugins": [
+///     {
+///       "Info": {
+///         "MaxUsd": {
+///           "ShaderReader": {
+///             "providesTranslator": [
+///               "myCustomShaderId"
+///             ]
+///           }
+///         }
+///       },
+///       "Name": "myUsdPlugin",
+///       "LibraryPath": "../myUsdPlugin.[dll|dylib|so]",
+///       "Type": "library"
+///     }
+///   ]
+/// }
+/// \endcode
+///
+/// The plugin at LibraryPath will be loaded via the regular USD plugin loading
+/// mechanism.
+///
+/// The registry contains information for both 3ds Max built-in node types
+/// and for any user-defined plugin types. If MaxUsd does not ship with a
+/// reader plugin for some 3ds Max built-in type, you can register your own
+/// plugin for that 3ds Max built-in type.
+struct MaxUsdShaderReaderRegistry
+{
+    /// Predicate function, i.e. a function that can tell the level of support
+    /// the reader function will provide for a given context.
+    typedef std::function<MaxUsdShaderReader::ContextSupport(const MaxUsd::MaxSceneBuilderOptions&)>
+        ContextPredicateFn;
+
+    /// Reader factory function, i.e. a function that creates a prim reader
+    /// for the given prim reader args.
+    typedef std::function<MaxUsdPrimReaderSharedPtr(const UsdPrim&, MaxUsdReadJobContext&)>
+        ReaderFactoryFn;
+
+    /// \brief Register fn as a factory function providing a
+    /// MaxUsdShaderReader subclass that can be used to read usdInfoId.
+    /// If you can't provide a valid MaxUsdShaderReader for the given arguments,
+    /// return a null pointer from the factory function fn.
+    ///
+    /// Example for registering a reader factory in your custom plugin:
+    /// \code{.cpp}
+    /// class MyReader : public MaxUsdShaderReader {
+    ///     static MaxUsdPrimReaderSharedPtr Create(
+    ///             const UsdPrim&, MaxUsdReadJobContext&);
+    ///     static CanImport(const MaxSceneBuilderOptions& importArgs) {
+    ///         return Supported; // After consulting the arguments
+    ///     }
+    /// };
+    /// TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShaderReaderRegistry, MyReader) {
+    ///     MaxUsdShaderReaderRegistry::Register("myCustomInfoId",
+    ///             MyReader::CanImport,
+    ///             MyReader::Create);
+    /// }
+    /// \endcode
+    MaxUSDAPI static void Register(
+        TfToken            usdInfoId,
+        ContextPredicateFn pred,
+        ReaderFactoryFn    fn,
+        bool               fromPython = false);
+
+    /// \brief Finds a reader if one exists for usdInfoId. The returned reader will have declared
+    /// support given the current importArgs.
+    ///
+    /// If there is no supported reader plugin for usdInfoId, returns nullptr.
+    MaxUSDAPI static ReaderFactoryFn
+    Find(const TfToken& usdInfoId, const MaxUsd::MaxSceneBuilderOptions& importArgs);
+};
+
+/// \brief Registers a pre-existing reader class for the given USD info:id;
+/// the reader class should be a subclass of MaxUsdShaderReader with a
+/// constructor that takes <tt>(const UsdPrim& prim, const MaxUsdReadJobContext& readerArgs)</tt>
+/// as argument.
+///
+/// Example:
+/// \code{.cpp}
+/// class MyReader : public MaxUsdShaderReader {
+///     MyReader(
+///             const UsdPrim& prim, const MaxUsdReadJobContext& readerArgs) {
+///         // ...
+///     }
+///     static CanImport(const MaxSceneBuilderOptions& importArgs) {
+///         return Supported; // After consulting the arguments
+///     }
+/// };
+/// PXR_MAXUSD_REGISTER_SHADER_READER(myCustomInfoId, MyReader);
+/// \endcode
+#define PXR_MAXUSD_REGISTER_SHADER_READER(usdInfoId, readerClass)                        \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShaderReaderRegistry, usdInfoId##_##readerClass) \
+    {                                                                                    \
+        static_assert(                                                                   \
+            std::is_base_of<MaxUsdShaderReader, readerClass>::value,                     \
+            #readerClass " must derive from MaxUsdShaderReader");                        \
+        MaxUsdShaderReaderRegistry::Register(                                            \
+            TfToken(#usdInfoId),                                                         \
+            readerClass::CanImport,                                                      \
+            [](const UsdPrim& prim, const MaxSceneBuilderOptions& readerArgs) {          \
+                return std::make_shared<readerClass>(readerArgs);                        \
+            });                                                                          \
+    }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderWriter.cpp b/src/MaxUsd/Translators/ShaderWriter.cpp
new file mode 100644
index 0000000..0378947
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderWriter.cpp
@@ -0,0 +1,70 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "ShaderWriter.h"
+
+#include <pxr/base/plug/plugin.h>
+#include <pxr/base/plug/registry.h>
+#include <pxr/usd/usdShade/material.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_REGISTRY_FUNCTION(TfType) { TfType::Define<MaxUsdShaderWriter>(); }
+
+MaxUsdShaderWriter::MaxUsdShaderWriter(
+    Mtl*                   material,
+    const SdfPath&         usdPath,
+    MaxUsdWriteJobContext& jobCtx)
+    : writeJobCtx(jobCtx)
+    , material(material)
+    , usdPath(usdPath)
+{
+}
+
+void MaxUsdShaderWriter::GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const
+{
+    for (int i = 0; i < material->NumSubMtls(); ++i) {
+        if (auto mtl = material->GetSubMtl(i)) {
+            subMtl.push_back(mtl);
+        }
+    }
+}
+
+const UsdStageRefPtr& MaxUsdShaderWriter::GetUsdStage() const { return writeJobCtx.GetUsdStage(); }
+
+const SdfPath& MaxUsdShaderWriter::GetUsdPath() const { return usdPath; }
+
+const UsdPrim& MaxUsdShaderWriter::GetUsdPrim() const { return usdPrim; }
+
+void MaxUsdShaderWriter::SetUsdPrim(const UsdPrim& usdPrim) { this->usdPrim = usdPrim; }
+
+Mtl* MaxUsdShaderWriter::GetMaterial() const { return material; }
+
+const std::string& MaxUsdShaderWriter::GetFilename() const { return writeJobCtx.GetFilename(); }
+
+const bool MaxUsdShaderWriter::IsUSDZFile() const { return writeJobCtx.IsUSDZFile(); }
+
+const MaxUsd::USDSceneBuilderOptions& MaxUsdShaderWriter::GetExportArgs() const
+{
+    return writeJobCtx.GetArgs();
+}
+
+const std::map<Mtl*, SdfPath>& MaxUsdShaderWriter::GetMaterialsToPrimsMap() const
+{
+    return writeJobCtx.GetMaterialsToPrimsMap();
+}
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/ShaderWriter.h b/src/MaxUsd/Translators/ShaderWriter.h
new file mode 100644
index 0000000..89abc21
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderWriter.h
@@ -0,0 +1,127 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "WriteJobContext.h"
+
+#include <pxr/usd/usd/common.h>
+
+class Mtl;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \brief The ShaderWriter base class from which material writers need to inherit from. A ShaderWriter instance is created for each material needing translation.
+///
+/// Two methods need to be implemented to have functional ShaderWriter:
+/// - `CanExport(exportArgs)` – a static classmethod which returns an enum value stating if the
+/// export context is `maxUsd.ShaderWriter.ContextSupport::Supported`, or `Unsupported`, or that the
+/// class acts as a Fallback.
+/// - `Write()` – the write method called to properly export the material
+class MaxUsdShaderWriter
+///
+{
+public:
+    MaxUSDAPI
+    MaxUsdShaderWriter(Mtl* material, const SdfPath& usdPath, MaxUsdWriteJobContext& jobCtx);
+
+    virtual ~MaxUsdShaderWriter() = default;
+
+    /// The level of support a writer can offer for a given context
+    ///
+    /// A basic writer that gives correct results across most contexts should
+    /// report `Fallback`, while a specialized writer that really shines in a
+    /// given context should report `Supported` when the context is right and
+    /// `Unsupported` if the context is not as expected.
+    enum class ContextSupport
+    {
+        Unsupported, //> Material type is not supported
+        Supported,   ///> Material type is supported
+        Fallback     //> Material type is not supported, use the fallback (default) writer
+    };
+
+    /// A static function is expected for all shader writers and allows
+    /// declaring how well this class can support the current context.
+    ///
+    /// The prototype is:
+    ///
+    /// ```static ContextSupport CanExport(const USDSceneBuilderOptions& exportArgs);```
+    ///
+
+    /// Another static function can be declared (not required) and allows
+    /// declaring if the material(s) the Writer is registered for are target agnostic.
+    ///	A target agnostic material is a material that can be exported to any target, and doesn't
+    ///need to be exported to each specific target.
+    ///
+    /// The prototype is:
+    ///
+    /// ```static bool IsMaterialTargetAgnostic();```
+    ///
+
+    /// \brief Main export function that runs when the applicable material gets hit.
+    MaxUSDAPI virtual void Write() { }
+
+    /// \brief Reports whether the ShaderWriter needs additional dependent materials to be exported.
+    MaxUSDAPI virtual bool HasMaterialDependencies() const { return false; }
+
+    /// \brief Retrieve the dependent materials
+    /// \param subMtl The array to report the list of dependent materials
+    MaxUSDAPI virtual void GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const;
+
+    /// \brief Method called after all materials are exported
+    MaxUSDAPI virtual void PostWrite() { }
+
+    /// \brief Gets the USD stage that we're writing to.
+    MaxUSDAPI const UsdStageRefPtr& GetUsdStage() const;
+
+    /// \brief The path of the destination USD prim to which we are writing.
+    MaxUSDAPI const SdfPath& GetUsdPath() const;
+
+    //// \brief The destination USD prim to which we are writing.
+    MaxUSDAPI const UsdPrim& GetUsdPrim() const;
+
+    /// \brief The 3ds Max material element being written by this writer.
+    MaxUSDAPI Mtl* GetMaterial() const;
+
+    /// \brief The filename to which the WriteJob exports to
+    MaxUSDAPI const std::string& GetFilename() const;
+
+    /// \brief Whether or not the exported file is a USDZ file
+    MaxUSDAPI const bool IsUSDZFile() const;
+
+protected:
+    /// \brief Sets the destination USD prim to which we are writing. (Should only be used once in the
+    /// constructor)
+    MaxUSDAPI void SetUsdPrim(const UsdPrim& usdPrim);
+
+    /// \brief Gets the current global export args in effect.
+    MaxUSDAPI const MaxUsd::USDSceneBuilderOptions& GetExportArgs() const;
+
+    /// \brief Gets the current map of exported materials and their paths
+    MaxUSDAPI const std::map<Mtl*, SdfPath>& GetMaterialsToPrimsMap() const;
+
+    UsdPrim                usdPrim;
+    MaxUsdWriteJobContext& writeJobCtx;
+
+private:
+    Mtl*    material;
+    SdfPath usdPath;
+};
+
+typedef std::shared_ptr<MaxUsdShaderWriter> MaxUsdShaderWriterSharedPtr;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderWriterRegistry.cpp b/src/MaxUsd/Translators/ShaderWriterRegistry.cpp
new file mode 100644
index 0000000..21992cd
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderWriterRegistry.cpp
@@ -0,0 +1,197 @@
+//
+// Copyright 2022 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShaderWriterRegistry.h"
+
+#include "LastResortUSDPreviewSurfaceWriter.h"
+#include "RegistryHelper.h"
+
+#include <MaxUsd/DebugCodes.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/UsdImaging/UsdImaging/tokens.h>
+#include <pxr/base/plug/plugin.h>
+#include <pxr/base/plug/registry.h>
+#include <pxr/base/tf/debug.h>
+
+#include <maxapi.h>
+#include <unordered_map>
+#include <utility>
+
+// custom specialization of std::hash can be injected in namespace std
+template <> struct std::hash<Class_ID>
+{
+    std::size_t operator()(Class_ID const& c) const noexcept
+    {
+        std::size_t h1 = std::hash<ulong> {}(c.PartA());
+        std::size_t h2 = std::hash<ulong> {}(c.PartB());
+        return h1 ^ (h2 << 1);
+    }
+};
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    (MaxUsd)
+        (ShaderWriter)
+);
+// clang-format on
+
+namespace {
+struct _RegistryEntry
+{
+    MaxUsdShaderWriterRegistry::ContextPredicateFn _pred;
+    MaxUsdShaderWriterRegistry::WriterFactoryFn    _writer;
+    MaxUsdShaderWriterRegistry::TargetAgnosticFn   _targetAgnosticFn;
+    int                                            _index;
+};
+
+using _Registry = std::unordered_multimap<Class_ID, _RegistryEntry>;
+static _Registry _reg;
+static int       _indexCounter = 0;
+
+_Registry::const_iterator
+_Find(const Class_ID& maxClassID, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    using ContextSupport = MaxUsdShaderWriter::ContextSupport;
+
+    _Registry::const_iterator ret = _reg.cend();
+    _Registry::const_iterator first, last;
+    std::tie(first, last) = _reg.equal_range(maxClassID);
+    while (first != last) {
+        ContextSupport support = first->second._pred(exportArgs);
+        if (support == ContextSupport::Supported) {
+            ret = first;
+            break;
+        } else if (support == ContextSupport::Fallback && ret == _reg.end()) {
+            ret = first;
+        }
+        ++first;
+    }
+
+    return ret;
+}
+} // namespace
+
+/* static */
+void MaxUsdShaderWriterRegistry::Register(
+    const TfToken&                              maxClassName,
+    ContextPredicateFn                          pred,
+    MaxUsdShaderWriterRegistry::WriterFactoryFn fn,
+    TargetAgnosticFn                            targetAgnosticFn,
+    bool                                        fromPython)
+{
+    auto name = maxClassName.GetString();
+    auto classList = GetCOREInterface()->GetDllDir().ClassDir().GetClassList(MATERIAL_CLASS_ID);
+    int  n = classList->Count(ACC_ALL);
+    for (int i = 0; i < n; i++) {
+        ClassDesc* classDesc = (*classList)[i].CD();
+        auto       className = MaxUsd::GetNonLocalizedClassName(classDesc);
+        if (maxClassName == className) {
+            Register(classDesc->ClassID(), pred, fn, targetAgnosticFn, fromPython);
+            break;
+        }
+    }
+}
+
+/* static */
+void MaxUsdShaderWriterRegistry::Register(
+    const Class_ID&                             maxClassID,
+    ContextPredicateFn                          pred,
+    MaxUsdShaderWriterRegistry::WriterFactoryFn fn,
+    TargetAgnosticFn                            targetAgnosticFn,
+    bool                                        fromPython)
+{
+    int index = _indexCounter++;
+    TF_DEBUG(PXR_MAXUSD_REGISTRY)
+        .Msg(
+            "Registering MaxUsdShaderWriter for 3ds Max ID (%ul,%ul) with index %d.\n",
+            maxClassID.PartA(),
+            maxClassID.PartB(),
+            index);
+
+    _reg.insert(std::make_pair(maxClassID, _RegistryEntry { pred, fn, targetAgnosticFn, index }));
+
+    // The unloader uses the index to know which entry to erase when there are
+    // more than one for the same maxClassID.
+    MaxUsd_RegistryHelper::AddUnloader(
+        [maxClassID, index]() {
+            _Registry::const_iterator it, itEnd;
+            std::tie(it, itEnd) = _reg.equal_range(maxClassID);
+            for (; it != itEnd; ++it) {
+                if (it->second._index == index) {
+                    _reg.erase(it);
+                    break;
+                }
+            }
+        },
+        fromPython);
+}
+
+/* static */
+MaxUsdShaderWriterRegistry::WriterFactoryFn MaxUsdShaderWriterRegistry::Find(
+    const Class_ID&                       maxClassID,
+    const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShaderWriterRegistry>();
+
+    _Registry::const_iterator it = _Find(maxClassID, exportArgs);
+
+    if (it != _reg.end()) {
+        return it->second._writer;
+    }
+
+    // Try adding more writers via plugin load:
+    static const TfTokenVector SCOPE = { _tokens->MaxUsd, _tokens->ShaderWriter };
+    MaxUsd_RegistryHelper::FindAndLoadMaxPlug(SCOPE, maxClassID, MATERIAL_CLASS_ID);
+
+    it = _Find(maxClassID, exportArgs);
+
+    if (it != _reg.end()) {
+        return it->second._writer;
+    }
+
+    // No applicable shader writer was found. If UsdPreviewSurface is the target, use a dummy
+    // material as last resort (only supports diffuse color).
+    WriterFactoryFn lastResortWriter = nullptr;
+    if (exportArgs.GetConvertMaterialsTo() == UsdImagingTokens->UsdPreviewSurface
+        && exportArgs.GetUseLastResortUSDPreviewSurfaceWriter() == true) {
+        lastResortWriter = [](Mtl*                   material,
+                              const SdfPath&         usd_path,
+                              MaxUsdWriteJobContext& job_ctx) {
+            return std::make_shared<LastResortUSDPreviewSurfaceWriter>(material, usd_path, job_ctx);
+        };
+    }
+    return lastResortWriter;
+}
+
+/*static */
+std::vector<Class_ID> MaxUsdShaderWriterRegistry::GetAllTargetAgnosticMaterials()
+{
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShaderWriterRegistry>();
+    std::vector<Class_ID> targetAgnosticMaterials;
+    for (auto& entry : _reg) {
+        auto targetAgnosticMaterialsForEntry = entry.second._targetAgnosticFn();
+        if (targetAgnosticMaterialsForEntry) {
+            targetAgnosticMaterials.push_back(entry.first);
+        }
+    }
+    return targetAgnosticMaterials;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShaderWriterRegistry.h b/src/MaxUsd/Translators/ShaderWriterRegistry.h
new file mode 100644
index 0000000..8434b5e
--- /dev/null
+++ b/src/MaxUsd/Translators/ShaderWriterRegistry.h
@@ -0,0 +1,96 @@
+//
+// Copyright 2022 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "RegistryHelper.h"
+#include "ShaderWriter.h"
+#include "WriteJobContext.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+
+#include <functional>
+#include <maxtypes.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+struct MaxUsdShaderWriterRegistry
+{
+    // Writer factory function, i.e. a function that creates a shader writer
+    // for the given 3ds Max node/USD paths and context.
+    using WriterFactoryFn
+        = std::function<MaxUsdShaderWriterSharedPtr(Mtl*, const SdfPath&, MaxUsdWriteJobContext&)>;
+
+    // Predicate function, i.e. a function that can tell the level of support
+    // the writer function will provide for a given set of export options.
+    using ContextPredicateFn
+        = std::function<MaxUsdShaderWriter::ContextSupport(const MaxUsd::USDSceneBuilderOptions&)>;
+
+    // Function indicating it is a target agnostic material writer.
+    // The writer is registered on a material that can be exported to any target and
+    // does not need to be exported to each specific target.
+    // The ShaderWriter static function can be optionally declared.
+    // A default method exists which returns 'false'. (see RegisterHelper
+    // IsMaterialTargetAgnosticFunc)
+    using TargetAgnosticFn = std::function<bool()>;
+
+    // Register 'fn' as a factory function providing a
+    // MaxUsdShaderWriter subclass that can be used to write the material ClassID.
+    // If you can't provide a valid MaxUsdShaderWriter for the given arguments,
+    // return a null pointer from the factory function 'fn'.
+    MaxUSDAPI static void Register(
+        const TfToken&     maxClassName,
+        ContextPredicateFn pred,
+        WriterFactoryFn    fn,
+        TargetAgnosticFn   targetAgnosticFn,
+        bool               fromPython = false);
+    MaxUSDAPI static void Register(
+        const Class_ID&    maxClassID,
+        ContextPredicateFn pred,
+        WriterFactoryFn    fn,
+        TargetAgnosticFn   targetAgnosticFn,
+        bool               fromPython = false);
+
+    // Finds a writer if one exists for 3ds Max material ClassID using the context
+    // found in 'exportArgs'
+    // If there is no writer plugin for 3ds Max material ClassID, returns nullptr.
+    MaxUSDAPI static WriterFactoryFn
+    Find(const Class_ID& maxTypeName, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUSDAPI static std::vector<Class_ID> GetAllTargetAgnosticMaterials();
+};
+
+#define PXR_MAXUSD_REGISTER_SHADER_WRITER(maxClassID, writerClass)                       \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShaderWriterRegistry, writerClass)               \
+    {                                                                                    \
+        static_assert(                                                                   \
+            std::is_base_of<MaxUsdShaderWriter, writerClass>::value,                     \
+            #writerClass " must derive from MaxUsdShaderWriter");                        \
+        static_assert(                                                                   \
+            HasCanExport<writerClass>::value,                                            \
+            #writerClass " must define a static CanExport() function");                  \
+        MaxUsdShaderWriterRegistry::Register(                                            \
+            maxClassID,                                                                  \
+            &writerClass::CanExport,                                                     \
+            [](Mtl* material, const SdfPath& usd_path, MaxUsdWriteJobContext& job_ctx) { \
+                return std::make_shared<writerClass>(material, usd_path, job_ctx);       \
+            },                                                                           \
+            IsMaterialTargetAgnosticFunc<writerClass>());                                \
+    }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeExporter.cpp b/src/MaxUsd/Translators/ShadingModeExporter.cpp
new file mode 100644
index 0000000..9615a70
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeExporter.cpp
@@ -0,0 +1,136 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "ShadingModeExporter.h"
+
+#include "ShadingModeExporterContext.h"
+#include "ShadingUtils.h"
+#include "WriteJobContext.h"
+
+#include <MaxUsd/DLLEntry.h>
+#include <MaxUsd/resource.h>
+
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/collectionAPI.h>
+#include <pxr/usd/usdGeom/scope.h>
+#include <pxr/usd/usdShade/material.h>
+#include <pxr/usd/usdUtils/authoring.h>
+
+#include <deque>
+#include <stack>
+#include <utility>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdShadingModeExporter::MaxUsdShadingModeExporter() { }
+
+/* virtual */
+MaxUsdShadingModeExporter::~MaxUsdShadingModeExporter() { }
+
+void MaxUsdShadingModeExporter::DoExport(
+    MaxUsdWriteJobContext&                                  writeJobContext,
+    const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind,
+    MaxUsd::MaxProgressBar&                                 progress)
+{
+    const MaxUsd::USDSceneBuilderOptions& exportArgs = writeJobContext.GetArgs();
+    const UsdStageRefPtr&                 stage = writeJobContext.GetUsdStage();
+
+    MaxUsdShadingModeExportContext context(writeJobContext);
+
+    PreExport(&context);
+
+    const auto materialBindings
+        = MaxUsdShadingUtils::FetchMaterials(writeJobContext, primsToMaterialBind);
+    writeJobContext.SetMaterialBindings(materialBindings);
+    if (materialBindings.empty()) {
+        return;
+    }
+
+    std::stack<MaterialBinding> materialToExportStack(
+        std::deque<MaterialBinding>(materialBindings.rbegin(), materialBindings.rend()));
+    auto materialExportedOrToExport = [&materialToExportStack, &writeJobContext](Mtl* mat) {
+        // was it already exported
+        if (writeJobContext.GetMaterialsToPrimsMap().find(mat)
+            != writeJobContext.GetMaterialsToPrimsMap().end()) {
+            return true;
+        }
+        // is it the stack to export
+        auto stackcopy = materialToExportStack;
+        while (!stackcopy.empty()) {
+            if (stackcopy.top().GetMaterial() == mat) {
+                return true;
+            }
+            stackcopy.pop();
+        }
+        return false;
+    };
+
+    auto nbMaterials = materialBindings.size();
+    progress.SetTotal(materialBindings.size());
+    progress.UpdateProgress(0, true, GetString(IDS_EXPORT_MATERIALS_PROGRESS_MESSAGE));
+    size_t progressCount = 0;
+
+    if (nbMaterials > 0) {
+        pxr::SdfPath rootPath(exportArgs.GetRootPrimPath());
+        pxr::UsdGeomScope::Define(stage, rootPath.AppendPath(exportArgs.GetMaterialPrimPath()));
+    }
+
+    // iterate over the exported 3ds Max nodes with materials
+    while (!materialToExportStack.empty()) {
+        auto matIter = materialToExportStack.top();
+        context.SetMaterialAndBindings(matIter.GetMaterial(), &matIter.GetBindings());
+
+        UsdShadeMaterial mat;
+        SdfPathSet       boundPrimPaths;
+        // TODO - revisit the use of 'boundPrimPath' for material bindings in relation to material
+        // collections.
+        Export(context, &mat, &boundPrimPaths);
+
+        // unstack exported material
+        materialToExportStack.pop();
+
+        // push any supplemental material
+        auto additionalMaterials = context.GetAdditionalMaterials();
+        if (!additionalMaterials.empty()) {
+            std::for_each(
+                additionalMaterials.rbegin(),
+                additionalMaterials.rend(),
+                [&materialToExportStack, &materialExportedOrToExport](Mtl* mat) {
+                    if (!materialExportedOrToExport(mat)) {
+                        materialToExportStack.push({ mat, {} });
+                    }
+                });
+            progress.SetTotal((nbMaterials += additionalMaterials.size()));
+        }
+
+        progress.UpdateProgress(
+            ++progressCount, true, GetString(IDS_EXPORT_MATERIALS_PROGRESS_MESSAGE));
+    }
+
+    context.SetMaterialAndBindings(nullptr, nullptr);
+
+    PostExport(context);
+}
+
+void MaxUsdShadingModeExporter::PostExport(const MaxUsdShadingModeExportContext& context)
+{
+    for (auto writer : context.GetShaderWriters()) {
+        writer->PostWrite();
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeExporter.h b/src/MaxUsd/Translators/ShadingModeExporter.h
new file mode 100644
index 0000000..0e8c99c
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeExporter.h
@@ -0,0 +1,65 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "ShadingModeExporterContext.h"
+#include "WriteJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Utilities/MaxProgressBar.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usdShade/material.h>
+
+#include <functional>
+#include <memory>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdShadingModeExporter
+{
+public:
+    MaxUSDAPI MaxUsdShadingModeExporter();
+    MaxUSDAPI virtual ~MaxUsdShadingModeExporter();
+
+    MaxUSDAPI void DoExport(
+        MaxUsdWriteJobContext&                                  writeJobContexts,
+        const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind,
+        MaxUsd::MaxProgressBar&                                 progress);
+
+    /// Called once, before any exports are started.
+    MaxUSDAPI virtual void PreExport(MaxUsdShadingModeExportContext* /* context */) {};
+
+    /// Called inside of a loop, per-material
+    MaxUSDAPI virtual void Export(
+        MaxUsdShadingModeExportContext& context,
+        UsdShadeMaterial* const         mat,
+        SdfPathSet* const               boundPrimPaths,
+        const pxr::SdfPath&             targetPath = {})
+        = 0;
+
+    /// Called once, after Export is called for all shading engines.
+    MaxUSDAPI virtual void PostExport(const MaxUsdShadingModeExportContext& context);
+};
+
+using MaxUsdShadingModeExporterPtr = std::shared_ptr<MaxUsdShadingModeExporter>;
+using MaxUsdShadingModeExporterCreator
+    = std::function<std::shared_ptr<MaxUsdShadingModeExporter>()>;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeExporterContext.cpp b/src/MaxUsd/Translators/ShadingModeExporterContext.cpp
new file mode 100644
index 0000000..40e3205
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeExporterContext.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShadingModeExporterContext.h"
+
+#include "WriteJobContext.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/envSetting.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/vt/types.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/prim.h>
+#include <pxr/usd/usd/specializes.h>
+#include <pxr/usd/usd/stage.h>
+#include <pxr/usd/usdGeom/scope.h>
+#include <pxr/usd/usdGeom/subset.h>
+#include <pxr/usd/usdShade/material.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+
+#include <regex>
+#include <stdmat.h>
+#include <string>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEFINE_PUBLIC_TOKENS(MaterialsRootMaxTokens, MAT_ROOT_TOKENS);
+
+MaxUsdShadingModeExportContext::MaxUsdShadingModeExportContext(
+    MaxUsdWriteJobContext& writeJobContext)
+    : stage(writeJobContext.GetUsdStage())
+    , writeJobContext(writeJobContext)
+{
+}
+
+UsdPrim MaxUsdShadingModeExportContext::MakeStandardMaterialPrim(const pxr::SdfPath& path) const
+{
+    UsdShadeMaterial materialShade;
+    // No path explicitly supplied. Build it from the export options.
+    if (path.IsEmpty()) {
+        // Build the material's root path
+        const MaxUsd::USDSceneBuilderOptions& buildOptions = GetExportArgs();
+        SdfPath                               materialsRoot(buildOptions.GetRootPrimPath());
+        materialsRoot = materialsRoot.AppendChild(MaterialsRootMaxTokens->materials);
+        // create Standard Material prim
+        std::string shaderName
+            = TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(GetMaterial()->GetName()));
+        materialShade = MaxUsd::MakeUniquePrimOfType<UsdShadeMaterial>(
+            stage, materialsRoot, pxr::TfToken { shaderName });
+    } else {
+        materialShade = UsdShadeMaterial::Define(stage, path);
+    }
+    UsdPrim materialPrim = materialShade.GetPrim();
+    return materialPrim;
+}
+
+void MaxUsdShadingModeExportContext::BindStandardMaterialPrim(const UsdPrim& materialPrim) const
+{
+    UsdShadeMaterial material(materialPrim);
+    if (!material) {
+        TF_RUNTIME_ERROR("Invalid material prim.");
+        return;
+    }
+
+    if (!bindings) {
+        // if no bindings was supplied, fall out
+        return;
+    }
+
+    for (const auto& exportedPrimPath : *bindings) {
+        auto exportedPrim = GetUsdStage()->GetPrimAtPath(exportedPrimPath);
+        auto bindingAPI = UsdShadeMaterialBindingAPI::Apply(exportedPrim);
+        bindingAPI.Bind(material);
+    }
+}
+
+void MaxUsdShadingModeExportContext::AdditionalMaterials(const std::vector<Mtl*>& additionalMtls)
+{
+    this->additionalMtls = additionalMtls;
+}
+const std::vector<Mtl*>& MaxUsdShadingModeExportContext::GetAdditionalMaterials() const
+{
+    return additionalMtls;
+}
+
+void MaxUsdShadingModeExportContext::AddShaderWriter(MaxUsdShaderWriterSharedPtr& writer)
+{
+    writers.push_back(writer);
+}
+const std::list<MaxUsdShaderWriterSharedPtr>&
+MaxUsdShadingModeExportContext::GetShaderWriters() const
+{
+    return writers;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeExporterContext.h b/src/MaxUsd/Translators/ShadingModeExporterContext.h
new file mode 100644
index 0000000..1187746
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeExporterContext.h
@@ -0,0 +1,92 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ShaderWriter.h"
+#include "WriteJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/base/vt/types.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/prim.h>
+
+#include <vector>
+
+class Mtl;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+#define MAT_ROOT_TOKENS ((materials, "mtl"))
+TF_DECLARE_PUBLIC_TOKENS(MaterialsRootMaxTokens, MaxUSDAPI, MAT_ROOT_TOKENS);
+
+class MaxUsdShadingModeExportContext
+{
+public:
+    MaxUSDAPI MaxUsdShadingModeExportContext(MaxUsdWriteJobContext& writeJobContext);
+
+    void SetMaterialAndBindings(Mtl* material, const std::list<SdfPath>* bindings)
+    {
+        this->material = material;
+        this->bindings = bindings;
+        this->additionalMtls.clear();
+    }
+    Mtl*                      GetMaterial() const { return material; }
+    const std::list<SdfPath>& GetBindings() const { return *bindings; }
+
+    const UsdStageRefPtr& GetUsdStage() const { return stage; }
+
+    MaxUsdWriteJobContext& GetWriteJobContext() const { return writeJobContext; }
+
+    const MaxUsd::USDSceneBuilderOptions& GetExportArgs() const
+    {
+        return writeJobContext.GetArgs();
+    }
+
+    /// Use this function to create a UsdShadeMaterial at the given path. If the path is left empty,
+    /// the prim is created at a path determined from the export options and material name.
+    MaxUSDAPI UsdPrim MakeStandardMaterialPrim(const pxr::SdfPath& path = {}) const;
+
+    /// Use this function to bind a UsdShadeMaterial prim to known bindings.
+    MaxUSDAPI void BindStandardMaterialPrim(const UsdPrim& materialPrim) const;
+
+    MaxUSDAPI void  AdditionalMaterials(const std::vector<Mtl*>& additionalMtls);
+    MaxUSDAPI const std::vector<Mtl*>& GetAdditionalMaterials() const;
+
+    MaxUSDAPI void  AddShaderWriter(MaxUsdShaderWriterSharedPtr& writer);
+    MaxUSDAPI const std::list<MaxUsdShaderWriterSharedPtr>& GetShaderWriters() const;
+
+private:
+    /// The 3ds Max material element to process only in the Export calls (not set in Pre/Post
+    /// Export)
+    Mtl* material;
+    /// The USD prim bindings for the export material element in the Export calls (not set in
+    /// Pre/Post Export)
+    const std::list<SdfPath>* bindings;
+    /// Additional materials to export that originates from the exported material
+    std::vector<Mtl*> additionalMtls;
+
+    /// The stage to which everything is being exported to
+    const UsdStageRefPtr& stage;
+    /// The job context for shared data required by the MaxUsdShaderWriters
+    MaxUsdWriteJobContext& writeJobContext;
+    /// List of ShaderWriter that got used in the export process
+    std::list<MaxUsdShaderWriterSharedPtr> writers;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeImporter.cpp b/src/MaxUsd/Translators/ShadingModeImporter.cpp
new file mode 100644
index 0000000..e2efc91
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeImporter.cpp
@@ -0,0 +1,71 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "ShadingModeImporter.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/stringUtils.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/prim.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUSDAPI bool
+MaxUsdShadingModeImportContext::GetCreatedMaterial(const UsdPrim& prim, Mtl** matRef) const
+{
+    if (!prim) {
+        return false;
+    }
+
+    auto s = prim.GetPath().GetString();
+    Mtl* material = dynamic_cast<Mtl*>(jobContext.GetMaxRefTargetHandle(prim.GetPath(), false));
+    if (material) {
+        *matRef = material;
+        return true;
+    }
+
+    return false;
+}
+
+Mtl* MaxUsdShadingModeImportContext::AddCreatedMaterial(const UsdPrim& prim, Mtl* mat)
+{
+    if (prim) {
+        return AddCreatedMaterial(prim.GetPath(), mat);
+    }
+
+    return mat;
+}
+
+Mtl* MaxUsdShadingModeImportContext::AddCreatedMaterial(const SdfPath& path, Mtl* mat)
+{
+    if (!path.IsEmpty()) {
+        jobContext.RegisterNewMaxRefTargetHandle(path, mat);
+    }
+
+    return mat;
+}
+
+MaxUsdReadJobContext& MaxUsdShadingModeImportContext::GetReadJobContext() const
+{
+    return jobContext;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeImporter.h b/src/MaxUsd/Translators/ShadingModeImporter.h
new file mode 100644
index 0000000..1da1bfb
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeImporter.h
@@ -0,0 +1,90 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/prim.h>
+#include <pxr/usd/usdGeom/gprim.h>
+#include <pxr/usd/usdShade/material.h>
+
+#include <functional>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdShadingModeImportContext
+{
+public:
+    const UsdShadeMaterial& GetShadeMaterial() const { return shadeMaterial; }
+    const UsdGeomGprim&     GetBoundPrim() const { return boundPrim; }
+
+    MaxUsdShadingModeImportContext(
+        const UsdShadeMaterial& shadeMaterial,
+        const UsdGeomGprim&     boundPrim,
+        MaxUsdReadJobContext&   jobCtx)
+        : shadeMaterial(shadeMaterial)
+        , boundPrim(boundPrim)
+        , jobContext(jobCtx)
+    {
+    }
+
+    /// \name Reuse ReferenceTarget on Import
+    /// @{
+    /// For example, if a shader node is used by multiple other nodes, you can
+    /// use these functions to ensure that only 1 gets created.
+    ///
+    /// If your importer wants to try to re-use objects that were created by
+    /// an earlier invocation (or by other things in the importer), you can
+    /// add/retrieve them using these functions.
+
+    /// This will return true and matRef will be set to the
+    /// previously created 3ds Max material.  Otherwise, this returns false;
+    /// If prim is an invalid UsdPrim, this will return false.
+    MaxUSDAPI bool GetCreatedMaterial(const UsdPrim& prim, Mtl** matRef) const;
+
+    /// If you want to register a prim so that other parts of the import
+    /// uses them, this function registers mat as being created.
+    /// If prim is an invalid UsdPrim, nothing will get stored and mat
+    /// will be returned.
+    MaxUSDAPI Mtl* AddCreatedMaterial(const UsdPrim& prim, Mtl* mat);
+
+    /// If you want to register a path so that other parts of the import
+    /// uses them, this function registers mat as being created.
+    /// If path is an empty SdfPath, nothing will get stored and mat
+    /// will be returned.
+    MaxUSDAPI Mtl* AddCreatedMaterial(const SdfPath& path, Mtl* mat);
+    /// @}
+
+    /// Returns the reader job context for this shading mode import.
+    MaxUSDAPI MaxUsdReadJobContext& GetReadJobContext() const;
+
+private:
+    const UsdShadeMaterial& shadeMaterial;
+    const UsdGeomGprim&     boundPrim;
+    MaxUsdReadJobContext&   jobContext;
+};
+typedef std::function<Mtl*(MaxUsdShadingModeImportContext*, const MaxUsd::MaxSceneBuilderOptions&)>
+    MaxUsdShadingModeImporter;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeRegistry.cpp b/src/MaxUsd/Translators/ShadingModeRegistry.cpp
new file mode 100644
index 0000000..b2e7f36
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeRegistry.cpp
@@ -0,0 +1,265 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "ShadingModeRegistry.h"
+
+#include "RegistryHelper.h"
+#include "ShadingModeExporter.h"
+#include "ShadingModeExporterContext.h"
+
+#include <pxr/base/tf/instantiateSingleton.h>
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+
+#include <map>
+#include <string>
+#include <utility>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdShadingModeTokens, PXR_MAXUSD_SHADINGMODE_TOKENS);
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    (MaxUsd)
+        (ShadingModePlugin)
+);
+// clang-format on
+
+namespace {
+static const std::string   _kEmptyString;
+static const TfTokenVector PLUGIN_SCOPE = { _tokens->MaxUsd, _tokens->ShadingModePlugin };
+} // namespace
+
+struct _ExportShadingMode
+{
+    std::string                      _niceName;
+    std::string                      _description;
+    MaxUsdShadingModeExporterCreator _fn;
+};
+using _ExportRegistry = std::map<TfToken, _ExportShadingMode>;
+static _ExportRegistry _exportReg;
+
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdPreferredMaterialTokens, PXR_MAXUSD_SHADINGCONVERSION_TOKENS);
+
+using _MaterialConversionRegistry = std::map<TfToken, MaxUsdShadingModeRegistry::ConversionInfo>;
+static _MaterialConversionRegistry _conversionReg;
+
+bool MaxUsdShadingModeRegistry::RegisterExporter(
+    const std::string&               name,
+    std::string                      niceName,
+    std::string                      description,
+    MaxUsdShadingModeExporterCreator fn)
+{
+    const TfToken                                    nameToken(name);
+    std::pair<_ExportRegistry::const_iterator, bool> insertStatus
+        = _exportReg.insert(_ExportRegistry::value_type(
+            nameToken, _ExportShadingMode { std::move(niceName), std::move(description), fn }));
+    if (insertStatus.second) {
+        MaxUsd_RegistryHelper::AddUnloader([nameToken]() { _exportReg.erase(nameToken); });
+    } else {
+        TF_CODING_ERROR("Multiple shading exporters named '%s'", name.c_str());
+    }
+    return insertStatus.second;
+}
+
+MaxUsdShadingModeExporterCreator MaxUsdShadingModeRegistry::_GetExporter(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    const auto it = _exportReg.find(name);
+    return it == _exportReg.end() ? nullptr : it->second._fn;
+}
+
+const std::string& MaxUsdShadingModeRegistry::_GetExporterNiceName(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    const auto it = _exportReg.find(name);
+    return it == _exportReg.end() ? _kEmptyString : it->second._niceName;
+}
+
+const std::string& MaxUsdShadingModeRegistry::_GetExporterDescription(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    const auto it = _exportReg.find(name);
+    return it == _exportReg.end() ? _kEmptyString : it->second._description;
+}
+
+struct _ImportShadingMode
+{
+    std::string               _niceName;
+    std::string               _description;
+    MaxUsdShadingModeImporter _fn;
+};
+using _ImportRegistry = std::map<TfToken, _ImportShadingMode>;
+static _ImportRegistry _importReg;
+
+bool MaxUsdShadingModeRegistry::RegisterImporter(
+    const std::string&        name,
+    std::string               niceName,
+    std::string               description,
+    MaxUsdShadingModeImporter fn)
+{
+    const TfToken                                    nameToken(name);
+    std::pair<_ImportRegistry::const_iterator, bool> insertStatus
+        = _importReg.insert(_ImportRegistry::value_type(
+            nameToken, _ImportShadingMode { std::move(niceName), std::move(description), fn }));
+    if (insertStatus.second) {
+        MaxUsd_RegistryHelper::AddUnloader([nameToken]() { _importReg.erase(nameToken); });
+    } else {
+        TF_CODING_ERROR("Multiple shading importers named '%s'", name.c_str());
+    }
+    return insertStatus.second;
+}
+
+MaxUsdShadingModeImporter MaxUsdShadingModeRegistry::_GetImporter(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    const auto it = _importReg.find(name);
+    return it == _importReg.end() ? nullptr : it->second._fn;
+}
+
+const std::string& MaxUsdShadingModeRegistry::_GetImporterNiceName(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    const auto it = _importReg.find(name);
+    return it == _importReg.end() ? _kEmptyString : it->second._niceName;
+}
+
+const std::string& MaxUsdShadingModeRegistry::_GetImporterDescription(const TfToken& name)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    const auto it = _importReg.find(name);
+    return it == _importReg.end() ? _kEmptyString : it->second._description;
+}
+
+TfTokenVector MaxUsdShadingModeRegistry::_ListExporters()
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    TfTokenVector ret;
+    ret.reserve(_exportReg.size());
+    for (const auto& e : _exportReg) {
+        ret.push_back(e.first);
+    }
+    return ret;
+}
+
+TfTokenVector MaxUsdShadingModeRegistry::_ListImporters()
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    TfTokenVector ret;
+    ret.reserve(_importReg.size());
+    for (const auto& e : _importReg) {
+        ret.push_back(e.first);
+    }
+    return ret;
+}
+
+void MaxUsdShadingModeRegistry::RegisterExportConversion(
+    const TfToken& materialConversion,
+    const TfToken& renderContext,
+    const TfToken& niceName,
+    const TfToken& description)
+{
+    // It is perfectly valid to register the same material conversion more than once,
+    // especially if exporters for a conversion are split across multiple libraries.
+    // We will keep the first niceName registered.
+    _MaterialConversionRegistry::iterator insertionPoint;
+    bool                                  hasInserted;
+    std::tie(insertionPoint, hasInserted)
+        = _conversionReg.insert(_MaterialConversionRegistry::value_type(
+            materialConversion,
+            ConversionInfo { renderContext, niceName, description, TfToken(), true, false }));
+    if (!hasInserted) {
+        // Update the info:
+        if (insertionPoint->second.exportDescription.IsEmpty()) {
+            insertionPoint->second.exportDescription = description;
+        }
+        insertionPoint->second.hasExporter = true;
+    }
+}
+
+void MaxUsdShadingModeRegistry::RegisterImportConversion(
+    const TfToken& materialConversion,
+    const TfToken& renderContext,
+    const TfToken& niceName,
+    const TfToken& description)
+{
+    // It is perfectly valid to register the same material conversion more than once,
+    // especially if importers for a conversion are split across multiple libraries.
+    // We will keep the first niceName registered.
+    MaxUsdShadingModeRegistry::ConversionInfo conversionInfo(
+        renderContext, niceName, TfToken(), description, false, true);
+    _MaterialConversionRegistry::iterator insertionPoint;
+    bool                                  hasInserted;
+    std::tie(insertionPoint, hasInserted) = _conversionReg.insert(
+        _MaterialConversionRegistry::value_type(materialConversion, conversionInfo));
+    if (!hasInserted) {
+        // Update the info:
+        if (insertionPoint->second.importDescription.IsEmpty()) {
+            insertionPoint->second.importDescription = description;
+        }
+        insertionPoint->second.hasImporter = true;
+    }
+}
+
+TfTokenVector MaxUsdShadingModeRegistry::_ListMaterialConversions()
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    TfTokenVector ret;
+    ret.reserve(_conversionReg.size());
+    for (const auto& e : _conversionReg) {
+        ret.push_back(e.first);
+    }
+    return ret;
+}
+
+const MaxUsdShadingModeRegistry::ConversionInfo&
+MaxUsdShadingModeRegistry::_GetMaterialConversionInfo(const TfToken& materialConversion)
+{
+    MaxUsd_RegistryHelper::FindAndLoadMaxUsdPlugs(PLUGIN_SCOPE);
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeExportContext>();
+    TfRegistryManager::GetInstance().SubscribeTo<MaxUsdShadingModeImportContext>();
+    auto                        it = _conversionReg.find(materialConversion);
+    static const ConversionInfo _emptyInfo;
+    return it != _conversionReg.end() ? it->second : _emptyInfo;
+}
+
+TF_INSTANTIATE_SINGLETON(MaxUsdShadingModeRegistry);
+
+MaxUsdShadingModeRegistry& MaxUsdShadingModeRegistry::GetInstance()
+{
+    return TfSingleton<MaxUsdShadingModeRegistry>::GetInstance();
+}
+
+MaxUsdShadingModeRegistry::MaxUsdShadingModeRegistry() { }
+
+MaxUsdShadingModeRegistry::~MaxUsdShadingModeRegistry() { }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeRegistry.h b/src/MaxUsd/Translators/ShadingModeRegistry.h
new file mode 100644
index 0000000..5a35f37
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeRegistry.h
@@ -0,0 +1,298 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include "ShadingModeExporter.h"
+#include "ShadingModeImporter.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/singleton.h>
+#include <pxr/base/tf/staticTokens.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/tf/weakBase.h>
+#include <pxr/pxr.h>
+
+#include <string>
+
+class Mtl;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+// ShadingMode - shading schema to use
+//         none - export/import no shading data to the USD
+//  useRegistry - registry based to export/import the 3ds Max materials to/from an equivalent UsdShade network
+// additional ShadingMode types can be added thru the use of the RegisterExporter/Importer method
+#define PXR_MAXUSD_SHADINGMODE_TOKENS \
+	(none) \
+	(useRegistry)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(MaxUsdShadingModeTokens, MaxUSDAPI, PXR_MAXUSD_SHADINGMODE_TOKENS);
+
+// clang-format off
+// ShadingConversion - preferred 3ds Max material conversion type
+//                  none - import to no specific 3ds Max material (default)
+//  maxUsdPreviewSurface - import to MaxUsdPreviewSurface
+//         pbrMetalRough - import to PBRMetalRough
+//      physicalMaterial - import to PhysicalMaterial
+#define PXR_MAXUSD_SHADINGCONVERSION_TOKENS \
+	(none) \
+	(maxUsdPreviewSurface) \
+	(pbrMetalRough) \
+	(physicalMaterial)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdPreferredMaterialTokens,
+    MaxUSDAPI,
+    PXR_MAXUSD_SHADINGCONVERSION_TOKENS);
+
+TF_DECLARE_WEAK_PTRS(MaxUsdShadingModeRegistry);
+
+/// This class provide macros that are entry points into the shading import/export
+/// logic.
+///
+/// We understand that shading may want to be imported/exported in many ways
+/// across studios.  Even within a studio, different workflows may call for
+/// different shading modes.
+
+/// The useRegistry exporters and importers can be specialized to support material conversions.
+/// The most well known is the default conversion to UsdPreviewSurface shaders. This registry
+/// allows introducing other material conversions as necessary to support other renderers. We
+/// also allow specifying that an import path is available for these renderers if support has
+/// been implemented.
+///
+/// To register a material conversion on export, you need to use the
+/// REGISTER_SHADING_MODE_EXPORT_MATERIAL_CONVERSION macro for each material conversion
+/// supported by the library. Multiple registration is supported, so each plugin should declare
+/// once the material conversions it supports.
+///
+/// In order for the core system to discover the plugin, you need a \c plugInfo.json that
+/// declares the plugin exposes shading modes:
+/// \code
+/// {
+///   "Plugins": [
+///     {
+///       "Info": {
+///         "MaxUsd": {
+///          "ShadingModePlugin" : {}
+///         }
+///       },
+///       "Name": "myUsdPlugin",
+///       "LibraryPath": "../myUsdPlugin.dll",
+///       "Type": "library"
+///     }
+///   ]
+/// }
+/// \endcode
+///
+/// The plugin at LibraryPath will be loaded via the regular USD plugin loading mechanism.
+class MaxUsdShadingModeRegistry : public TfWeakBase
+{
+public:
+    static MaxUsdShadingModeExporterCreator GetExporter(const TfToken& name)
+    {
+        return GetInstance()._GetExporter(name);
+    }
+    static MaxUsdShadingModeImporter GetImporter(const TfToken& name)
+    {
+        return GetInstance()._GetImporter(name);
+    }
+    static TfTokenVector ListExporters() { return GetInstance()._ListExporters(); }
+    static TfTokenVector ListImporters() { return GetInstance()._ListImporters(); }
+
+    /// Gets the nice name of an exporter.
+    static const std::string& GetExporterNiceName(const TfToken& name)
+    {
+        return GetInstance()._GetExporterNiceName(name);
+    }
+
+    /// Gets the nice name of an importer.
+    static const std::string& GetImporterNiceName(const TfToken& name)
+    {
+        return GetInstance()._GetImporterNiceName(name);
+    }
+
+    /// Gets the description of an exporter.
+    static const std::string& GetExporterDescription(const TfToken& name)
+    {
+        return GetInstance()._GetExporterDescription(name);
+    }
+    /// Gets the description of an importer.
+    static const std::string& GetImporterDescription(const TfToken& name)
+    {
+        return GetInstance()._GetImporterDescription(name);
+    }
+
+    MaxUSDAPI static MaxUsdShadingModeRegistry& GetInstance();
+
+    MaxUSDAPI bool RegisterExporter(
+        const std::string&               name,
+        std::string                      niceName,
+        std::string                      description,
+        MaxUsdShadingModeExporterCreator fn);
+
+    MaxUSDAPI bool RegisterImporter(
+        const std::string&        name,
+        std::string               niceName,
+        std::string               description,
+        MaxUsdShadingModeImporter fn);
+
+    /// Get all registered export conversions:
+    static TfTokenVector ListMaterialConversions()
+    {
+        return GetInstance()._ListMaterialConversions();
+    }
+
+    /// All the information registered for a specific material conversion.
+    struct ConversionInfo
+    {
+        TfToken renderContext;
+        TfToken niceName;
+        TfToken exportDescription;
+        TfToken importDescription;
+        bool    hasExporter = false;
+        bool    hasImporter = false;
+
+        ConversionInfo() = default;
+        ConversionInfo(TfToken rc, TfToken nn, TfToken ed, TfToken id, bool he, bool hi)
+            : renderContext(rc)
+            , niceName(nn)
+            , exportDescription(ed)
+            , importDescription(id)
+            , hasExporter(he)
+            , hasImporter(hi)
+        {
+        }
+    };
+
+    /// Gets the conversion information associated with \p materialConversion on export and import
+    static const ConversionInfo& GetMaterialConversionInfo(const TfToken& materialConversion)
+    {
+        return GetInstance()._GetMaterialConversionInfo(materialConversion);
+    }
+
+    /// Registers an export material conversion with render context, nice name, and description.
+    ///
+    /// The materialConversion name gets used directly in the render option string as one of
+    /// the "Materials export to" options of the USD export dialog.
+    ///
+    /// The renderContext gets used to specialize the binding point. See UsdShadeMaterial
+    /// documentation for details. Use a value of "UsdShadeTokens->universalRenderContext" if the
+    /// resulting UsdShade nodes are written using an API shared by multiple renderers, like
+    /// UsdPreviewSurface. For UsdShade nodes targeting a specific rendering engine, please define a
+    /// custom render context
+    ///  understood by the renderer.
+    ///
+    /// The niceName is the name displayed in the "Materials export to" option of the USD export
+    /// dialog
+    ///
+    /// The description gets displayed as a tooltip in the "Materials export to" option of the USD
+    /// export dialog.
+    MaxUSDAPI void RegisterExportConversion(
+        const TfToken& materialConversion,
+        const TfToken& renderContext,
+        const TfToken& niceName,
+        const TfToken& description);
+
+    /// Registers an import material conversion, with render context, nice name and description.
+    /// This is the import counterpart of the RegisterExportConversion to be used if importers are
+    /// available for a specific materialConversion. This covers only the "where to look in USD"
+    /// part of material import. Extra conversion to a specified 3ds Max material requires setting
+    /// the optional preferredMaterial import option.
+    ///
+    /// The materialConversion name will be used directly in the import option string as one of
+    /// the valid values of the second parameter to the shadingMode list to search on import.
+    ///
+    /// The renderContext will be used to locate the specialized binding point in the USD data.
+    /// See UsdShadeMaterial documentation for details.
+    ///
+    /// The niceName is the name to be displayed in the import options dialog.
+    ///
+    /// The description is displayed as a tooltip in the import options dialog.
+    MaxUSDAPI void RegisterImportConversion(
+        const TfToken& materialConversion,
+        const TfToken& renderContext,
+        const TfToken& niceName,
+        const TfToken& description);
+
+private:
+    MaxUSDAPI MaxUsdShadingModeExporterCreator _GetExporter(const TfToken& name);
+    MaxUSDAPI const std::string& _GetExporterNiceName(const TfToken&);
+    MaxUSDAPI const std::string& _GetExporterDescription(const TfToken&);
+
+    MaxUSDAPI MaxUsdShadingModeImporter _GetImporter(const TfToken& name);
+    MaxUSDAPI const std::string& _GetImporterNiceName(const TfToken&);
+    MaxUSDAPI const std::string& _GetImporterDescription(const TfToken&);
+
+    MaxUSDAPI TfTokenVector _ListExporters();
+    MaxUSDAPI TfTokenVector _ListImporters();
+
+    MaxUSDAPI TfTokenVector         _ListMaterialConversions();
+    MaxUSDAPI const ConversionInfo& _GetMaterialConversionInfo(const TfToken&);
+
+    MaxUsdShadingModeRegistry();
+    ~MaxUsdShadingModeRegistry();
+    friend class TfSingleton<MaxUsdShadingModeRegistry>;
+};
+
+#define DEFINE_SHADING_MODE_IMPORTER(name, niceName, description, contextName)   \
+    static Mtl* _ShadingModeImporter_##name(                                     \
+        MaxUsdShadingModeImportContext*, const MaxUsd::MaxSceneBuilderOptions&); \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShadingModeImportContext, name)          \
+    {                                                                            \
+        MaxUsdShadingModeRegistry::GetInstance().RegisterImporter(               \
+            #name, niceName, description, &_ShadingModeImporter_##name);         \
+    }                                                                            \
+    Mtl* _ShadingModeImporter_##name(                                            \
+        MaxUsdShadingModeImportContext* contextName, const MaxSceneBuilderOptions&)
+
+#define DEFINE_SHADING_MODE_IMPORTER_WITH_JOB_ARGUMENTS(                         \
+    name, niceName, description, contextName, jobArgumentsName)                  \
+    static Mtl* _ShadingModeImporter_##name(                                     \
+        MaxUsdShadingModeImportContext*, const MaxUsd::MaxSceneBuilderOptions&); \
+    TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShadingModeImportContext, name)          \
+    {                                                                            \
+        MaxUsdShadingModeRegistry::GetInstance().RegisterImporter(               \
+            #name, niceName, description, &_ShadingModeImporter_##name);         \
+    }                                                                            \
+    Mtl* _ShadingModeImporter_##name(                                            \
+        MaxUsdShadingModeImportContext*       contextName,                       \
+        const MaxUsd::MaxSceneBuilderOptions& jobArgumentsName)
+
+#define REGISTER_SHADING_MODE_EXPORT_MATERIAL_CONVERSION(                  \
+    name, renderContext, niceName, description)                            \
+    TF_REGISTRY_FUNCTION(MaxUsdShadingModeExportContext)                   \
+    {                                                                      \
+        MaxUsdShadingModeRegistry::GetInstance().RegisterExportConversion( \
+            name, renderContext, niceName, description);                   \
+    }
+
+#define REGISTER_SHADING_MODE_IMPORT_MATERIAL_CONVERSION(                  \
+    name, renderContext, niceName, description)                            \
+    TF_REGISTRY_FUNCTION(MaxUsdShadingModeImportContext)                   \
+    {                                                                      \
+        MaxUsdShadingModeRegistry::GetInstance().RegisterImportConversion( \
+            name, renderContext, niceName, description);                   \
+    }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingModeUseRegistry.cpp b/src/MaxUsd/Translators/ShadingModeUseRegistry.cpp
new file mode 100644
index 0000000..743a1f6
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingModeUseRegistry.cpp
@@ -0,0 +1,481 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2022 Autodesk, Inc. All rights reserved.
+//
+#include "PrimReader.h"
+#include "ShaderReader.h"
+#include "ShaderReaderRegistry.h"
+#include "ShaderWriter.h"
+#include "ShaderWriterRegistry.h"
+#include "ShadingModeExporter.h"
+#include "ShadingModeExporterContext.h"
+#include "ShadingModeImporter.h"
+#include "ShadingModeRegistry.h"
+#include "ShadingUtils.h"
+
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usd/prim.h>
+#include <pxr/usd/usdShade/material.h>
+#include <pxr/usd/usdShade/shader.h>
+#include <pxr/usd/usdShade/tokens.h>
+
+#include <ICustAttribContainer.h>
+#include <custattrib.h>
+#include <memory>
+#include <stdmat.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+namespace {
+
+// clang-format off
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+
+    ((ArgName, "useRegistry"))
+    ((NiceName, "Use Registry"))
+    ((ExportDescription,
+        "Use a registry based mechanism, complemented with material conversions,"
+         " to export to a UsdShade network"))
+    ((ImportDescription,
+         "Use a registry based mechanism, complemented with material conversions,"
+         " to import from a UsdShade network"))
+);
+// clang-format on
+
+namespace UsdCustAttributes {
+// Enum that match the custom attribute paramblock params
+enum
+{
+    PathMethod = 0,
+    PrimPath,
+    SeparateLayer,
+    FilePath,
+};
+
+// Enum that match the values of the pathMethod param
+enum
+{
+    // Respect the export options
+    RespectOptions = 1,
+    // This Custom Attribute will overwrite some export options
+    OverwriteOptions,
+};
+} // namespace UsdCustAttributes
+
+class UseRegistryShadingModeExporter : public MaxUsdShadingModeExporter
+{
+public:
+    UseRegistryShadingModeExporter() { }
+
+private:
+    /// Gets the exported ShadeNode associated with the \p depNode that was written under
+    /// the path \p parentPath. If no such node exists, then one is created and written.
+    ///
+    /// If no shader writer can be found for the 3ds Max material or if the node
+    /// otherwise should not be authored, an empty pointer is returned.
+    MaxUsdShaderWriterSharedPtr
+    _GetExportedShaderForNode(const SdfPath& parentPath, MaxUsdShadingModeExportContext& context)
+    {
+        Mtl* material = context.GetMaterial();
+
+        const TfToken shaderUsdPrimName(
+            TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(material->GetName())));
+
+        const SdfPath shaderUsdPath = parentPath.AppendChild(shaderUsdPrimName);
+
+        MaxUsdShaderWriterRegistry::WriterFactoryFn shaderWriterFactory
+            = MaxUsdShaderWriterRegistry::Find(material->ClassID(), context.GetExportArgs());
+        if (!shaderWriterFactory) {
+            return nullptr;
+        }
+
+        MaxUsdShaderWriterSharedPtr shaderWriter
+            = shaderWriterFactory(material, shaderUsdPath, context.GetWriteJobContext());
+        if (!shaderWriter) {
+            return nullptr;
+        }
+
+        shaderWriter->Write();
+
+        // context add possible material dependencies
+        if (shaderWriter->HasMaterialDependencies()) {
+            std::vector<Mtl*> additionalMtls;
+            shaderWriter->GetSubMtlDependencies(additionalMtls);
+            context.AdditionalMaterials(additionalMtls);
+        }
+
+        return shaderWriter;
+    }
+
+    pxr::SdfPath materialTargetPath(
+        const MaxUsdShadingModeExportContext& context,
+        UsdShadeMaterial* const               mat,
+        UsdEditTarget&                        editTarget)
+    {
+        // Build the material's path
+        const MaxUsd::USDSceneBuilderOptions& buildOptions = context.GetExportArgs();
+        SdfPath                               materialsRoot;
+        Mtl*                                  maxMat = context.GetMaterial();
+        std::string                           shaderName
+            = TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(maxMat->GetName()));
+        fs::path exportFolder(context.GetWriteJobContext().GetFilename());
+        exportFolder = exportFolder.remove_filename();
+        bool     foundCALayer = false;
+        SdfPath  caPrimPath;
+        Interval valid = FOREVER;
+        if (auto custAttrContainer = maxMat->GetCustAttribContainer()) {
+            bool        foundCA = false;
+            CustAttrib* custAttr = nullptr;
+            for (int i = 0; i < custAttrContainer->GetNumCustAttribs(); i++) {
+                custAttr = custAttrContainer->GetCustAttrib(i);
+                if (wcscmp(custAttr->GetName(false), L"UsdMaterialAttributeHolder") == 0) {
+                    foundCA = true;
+                    break;
+                }
+            }
+            // Material has the USD custom attribute
+            if (foundCA) {
+                IParamBlock2* pb = custAttr->GetParamBlockByID(0);
+                int           exportToVal = 0;
+                pb->GetValue(UsdCustAttributes::PathMethod, 0, exportToVal, valid);
+                // This material's CA overwrite some of the default export options.
+                if (exportToVal == UsdCustAttributes::OverwriteOptions) {
+                    const MCHAR* mxPrimPath = L"";
+                    pb->GetValue(UsdCustAttributes::PrimPath, 0, mxPrimPath, valid);
+                    auto primPathStr = MaxUsd::MaxStringToUsdString(mxPrimPath);
+                    if (SdfPath::IsValidPathString(primPathStr)) {
+                        caPrimPath = SdfPath(primPathStr);
+                        // Not an absolute path, append it to the root prim path
+                        if (!caPrimPath.IsAbsolutePath()) {
+                            caPrimPath
+                                = context.GetExportArgs().GetRootPrimPath().AppendPath(caPrimPath);
+                        }
+                    } else {
+                        MaxUsd::Log::Warn(
+                            "Invalid Scope path for : {}, will be set to '/mtl' for this export",
+                            shaderName);
+                        caPrimPath = SdfPath("/mtl");
+                    }
+                    materialsRoot = caPrimPath;
+
+                    int separateLayer = 0;
+                    pb->GetValue(UsdCustAttributes::SeparateLayer, 0, separateLayer, valid);
+                    // This Material is targeting a specific layer.
+                    if (separateLayer) {
+                        foundCALayer = true;
+                        const MCHAR* filePath = L"";
+                        pb->GetValue(UsdCustAttributes::FilePath, 0, filePath, valid);
+                        auto usdFilePath
+                            = USDCore::sanitizedFilename(filePath, _T(".usda")).string();
+                        auto ext = pxr::SdfFileFormat::FindByExtension(usdFilePath);
+
+                        // Here we need to check if this layer is already used in the export so that
+                        // multiple materials can write to it. We need to do this so that we don't
+                        // overwrite the layer with each material that uses it.
+                        auto layerMap = context.GetWriteJobContext().GetLayerMap();
+                        bool layerAlreadyUsedInExport
+                            = layerMap.find(usdFilePath) != layerMap.end();
+                        SdfLayerRefPtr matLayer = nullptr;
+                        // If this layer didn't exist create it.
+                        if (!layerAlreadyUsedInExport) {
+                            MaxUsd::Log::Info(
+                                "Material Layer created in memory targeting path : {}",
+                                usdFilePath);
+                            matLayer = MaxUsd::CreateOrOverwriteLayer(ext, usdFilePath);
+                            if (matLayer == nullptr) {
+                                MaxUsd::Log::Error(
+                                    "Material Layer for {} failed to be created", shaderName);
+                                return SdfPath::EmptyPath();
+                            }
+                            editTarget = UsdEditTarget(matLayer);
+                            context.GetWriteJobContext().AddUsedLayerIdentifier(
+                                usdFilePath, matLayer);
+                        } else {
+                            matLayer = layerMap[usdFilePath];
+                            editTarget = UsdEditTarget(matLayer);
+                        }
+
+                        // Sublayer it into the stage's root layer.
+                        context.GetUsdStage()->GetRootLayer()->InsertSubLayerPath(
+                            matLayer->GetIdentifier());
+                    }
+                }
+            }
+        }
+        // No separate layer in the exporter options or CA
+        if (!buildOptions.GetUseSeparateMaterialLayer() && !foundCALayer) {
+            auto primPath = caPrimPath.IsEmpty() ? buildOptions.GetMaterialPrimPath() : caPrimPath;
+            if (primPath.IsAbsolutePath()) {
+                materialsRoot = primPath;
+            } else {
+                materialsRoot = buildOptions.GetRootPrimPath();
+                materialsRoot = materialsRoot.AppendPath(primPath);
+            }
+        }
+        // Material Layer was specified in the exporter options
+        else if (!foundCALayer) {
+            auto usdFilePath
+                = USDCore::sanitizedFilename(buildOptions.GetMaterialLayerPath(), ".usda");
+            auto usdFilePathStr = usdFilePath.string();
+            auto layerMap = context.GetWriteJobContext().GetLayerMap();
+            auto matLayer = layerMap[usdFilePathStr];
+
+            if (matLayer == nullptr) {
+                MaxUsd::Log::Error(
+                    "Material Layer {0} for {1} failed to be found", usdFilePathStr, shaderName);
+                return SdfPath::EmptyPath();
+            }
+
+            // Sublayer it into the stage's root layer.
+            context.GetUsdStage()->GetRootLayer()->InsertSubLayerPath(matLayer->GetIdentifier());
+            editTarget = UsdEditTarget(matLayer);
+            if (!caPrimPath.IsEmpty()) {
+                materialsRoot = caPrimPath;
+            } else {
+                if (!buildOptions.GetMaterialPrimPath().IsAbsolutePath()) {
+                    materialsRoot = context.GetExportArgs().GetRootPrimPath().AppendPath(
+                        buildOptions.GetMaterialPrimPath());
+                } else {
+                    materialsRoot = buildOptions.GetMaterialPrimPath();
+                }
+            }
+        }
+        return MaxUsd::MakeUniquePrimPath(
+            context.GetUsdStage(), materialsRoot, TfToken(shaderName));
+    }
+
+    void Export(
+        MaxUsdShadingModeExportContext& context,
+        UsdShadeMaterial* const         mat,
+        SdfPathSet* const               boundPrimPaths,
+        const pxr::SdfPath&             targetPath) override
+    {
+        UsdPrim materialPrim;
+        auto    materialPath = SdfPath::EmptyPath();
+        auto    editTarget = UsdEditTarget(context.GetUsdStage()->GetRootLayer());
+
+        if (targetPath.IsEmpty()) {
+            materialPath = materialTargetPath(context, mat, editTarget);
+        }
+
+        pxr::UsdEditContext editContext(context.GetUsdStage(), editTarget);
+        materialPrim
+            = context.MakeStandardMaterialPrim(targetPath.IsEmpty() ? materialPath : targetPath);
+
+        UsdShadeMaterial material(materialPrim);
+        if (!material) {
+            return;
+        }
+
+        auto cleanUpNodeGraph
+            = [](const MaxUsdShadingModeExportContext& context, const SdfPath& materialExportPath) {
+                  UsdPrim nodeGraphPrim(context.GetUsdStage()->GetPrimAtPath(materialExportPath));
+
+                  if (nodeGraphPrim.GetAllChildren().empty()) {
+                      context.GetUsdStage()->RemovePrim(materialExportPath);
+                  }
+              };
+
+        if (mat != nullptr) {
+            *mat = material;
+        }
+
+        auto       materialTargets = context.GetExportArgs().GetAllMaterialConversions();
+        const auto agnosticMaterials = MaxUsdShaderWriterRegistry::GetAllTargetAgnosticMaterials();
+        const bool targetIndifferent = std::find(
+                                           agnosticMaterials.begin(),
+                                           agnosticMaterials.end(),
+                                           context.GetMaterial()->ClassID())
+            != agnosticMaterials.end();
+
+        // If the material is target agnostic, we only want to export it once, overwrite the
+        // materialTargets.
+        if (targetIndifferent && !materialTargets.empty()) {
+            materialTargets = { TfToken("Agnostic") };
+        }
+
+        for (const TfToken& currentMaterialConversion : materialTargets) {
+
+            MaxUsd::USDSceneBuilderOptions& currentIteration
+                = const_cast<MaxUsd::USDSceneBuilderOptions&>(context.GetExportArgs());
+            currentIteration.SetConvertMaterialsTo(currentMaterialConversion);
+
+            const TfToken& renderContext
+                = MaxUsdShadingModeRegistry::GetMaterialConversionInfo(currentMaterialConversion)
+                      .renderContext;
+            SdfPath materialExportPath = materialPrim.GetPath();
+
+            if (materialTargets.size() > 1) {
+                // Write each material in its own scope
+                materialExportPath = materialExportPath.AppendChild(currentMaterialConversion);
+
+                // This path needs to be a NodeGraph:
+                UsdShadeNodeGraph::Define(context.GetUsdStage(), materialExportPath);
+            }
+
+            auto shaderInfo = _GetExportedShaderForNode(materialExportPath, context);
+            if (!shaderInfo) {
+                // Clean-up nodegraph if nothing was exported:
+                if (materialTargets.size() > 1) {
+                    cleanUpNodeGraph(context, materialExportPath);
+                }
+                continue;
+            }
+            context.AddShaderWriter(shaderInfo);
+
+            UsdPrim        shaderPrim = shaderInfo->GetUsdPrim();
+            UsdShadeShader shadeShader = UsdShadeShader(shaderPrim);
+
+            MaxUsdShadingUtils::CreateShaderOutputAndConnectMaterial(
+                shadeShader, material, UsdShadeTokens->surface, renderContext);
+
+            // Clean-up nodegraph if nothing was exported:
+            if (materialTargets.size() > 1) {
+                cleanUpNodeGraph(context, materialExportPath);
+            }
+        }
+
+        // If we did not actually export any shaders, cleanup after ourselves.
+        if (materialPrim.GetAllChildren().empty() && !materialPrim.HasAuthoredReferences()
+            && !materialPrim.HasVariantSets()) {
+            context.GetUsdStage()->RemovePrim(materialPrim.GetPath());
+        }
+        // Otherwise, bind the material to the prims.
+        else {
+            // We want to have the material binding in the layer where the geometry is exported.
+            pxr::UsdEditContext materialBindingEditContext(
+                context.GetUsdStage(), context.GetUsdStage()->GetRootLayer());
+            context.GetWriteJobContext().AddExportedMaterial(
+                context.GetMaterial(), materialPrim.GetPath());
+            context.BindStandardMaterialPrim(materialPrim);
+        }
+    }
+};
+
+} // anonymous namespace
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdShadingModeExportContext, useRegistry)
+{
+    MaxUsdShadingModeRegistry::GetInstance().RegisterExporter(
+        _tokens->ArgName.GetString(),
+        _tokens->NiceName.GetString(),
+        _tokens->ExportDescription.GetString(),
+        []() -> MaxUsdShadingModeExporterPtr {
+            return MaxUsdShadingModeExporterPtr(
+                static_cast<MaxUsdShadingModeExporter*>(new UseRegistryShadingModeExporter()));
+        });
+}
+
+namespace {
+
+/// This class implements a shading mode importer which uses a registry keyed by the info:id USD
+/// attribute to provide an importer class for each UsdShade node processed while traversing the
+/// main connections of a UsdMaterial node.
+class UseRegistryShadingModeImporter
+{
+public:
+    UseRegistryShadingModeImporter(
+        MaxUsdShadingModeImportContext*       context,
+        const MaxUsd::MaxSceneBuilderOptions& jobArguments)
+        : context(context)
+        , jobArguments(jobArguments)
+    {
+    }
+
+    /// Main entry point of the import process. On input we get a UsdMaterial which gets traversed
+    /// in order to build a 3ds Max material that reproduces the information found in the USD
+    /// shading network.
+    Mtl* Read()
+    {
+        if (jobArguments.GetShadingModes().size() != 1) {
+            // The material translator will make sure we only get a single shading mode
+            // at a time.
+            TF_CODING_ERROR("useRegistry importer can only handle a single shadingMode");
+            return nullptr;
+        }
+        const TfToken& materialConversion = jobArguments.GetMaterialConversion();
+        TfToken        renderContext
+            = MaxUsdShadingModeRegistry::GetMaterialConversionInfo(materialConversion)
+                  .renderContext;
+
+        const UsdShadeMaterial& shadeMaterial = context->GetShadeMaterial();
+        if (!shadeMaterial) {
+            return nullptr;
+        }
+
+        Mtl* material { nullptr };
+
+        // ComputeSurfaceSource will default to the universal render context if
+        // renderContext is not found. Therefore we need to test first that the
+        // render context output we are looking for really exists:
+        if (shadeMaterial.GetSurfaceOutput(renderContext)) {
+            UsdShadeShader surfaceShader = shadeMaterial.ComputeSurfaceSource({ renderContext });
+            if (surfaceShader) {
+                auto surfaceShaderPrimToRead = surfaceShader.GetPrim();
+                if (surfaceShader.GetPrim().IsInstanceProxy()) {
+                    surfaceShaderPrimToRead = surfaceShader.GetPrim().GetPrimInPrototype();
+                }
+
+                Mtl* mat;
+                // was the material already imported?
+                if (context->GetCreatedMaterial(surfaceShaderPrimToRead, &mat)) {
+                    return mat;
+                }
+
+                TfToken shaderId;
+                surfaceShader.GetIdAttr().Get(&shaderId);
+                if (MaxUsdShaderReaderRegistry::ReaderFactoryFn factoryFn
+                    = MaxUsdShaderReaderRegistry::Find(shaderId, jobArguments)) {
+                    UsdPrim shaderPrim = surfaceShader.GetPrim();
+                    auto    shaderReader = std::dynamic_pointer_cast<MaxUsdShaderReader>(
+                        factoryFn(shaderPrim, context->GetReadJobContext()));
+                    if (shaderReader->Read()) {
+                        material
+                            = shaderReader->GetCreatedMaterial(*context, surfaceShader.GetPrim());
+                    }
+                }
+            }
+        }
+
+        return material;
+    }
+
+private:
+    MaxUsdShadingModeImportContext*       context = nullptr;
+    const MaxUsd::MaxSceneBuilderOptions& jobArguments;
+};
+
+}; // anonymous namespace
+
+DEFINE_SHADING_MODE_IMPORTER_WITH_JOB_ARGUMENTS(
+    useRegistry,
+    _tokens->NiceName.GetString(),
+    _tokens->ImportDescription.GetString(),
+    context,
+    jobArguments)
+{
+    UseRegistryShadingModeImporter importer(context, jobArguments);
+    return importer.Read();
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingUtils.cpp b/src/MaxUsd/Translators/ShadingUtils.cpp
new file mode 100644
index 0000000..5ad41c7
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingUtils.cpp
@@ -0,0 +1,495 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShadingUtils.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <pxr/usd/usd/inherits.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+#include <pxr/usd/usdShade/shader.h>
+#include <pxr/usdImaging/usdImaging/primAdapter.h>
+
+#include <XRef/iXrefMaterial.h>
+#include <inode.h>
+#include <iparamb2.h>
+#include <stdmat.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+namespace MaxUsdShadingUtils {
+
+void AddMaterialBinding(MaterialBindings& bindings, Mtl* material, const SdfPath& path)
+{
+    auto found
+        = std::find_if(bindings.begin(), bindings.end(), [material](const MaterialBinding& item) {
+              return item.GetMaterial() == material;
+          });
+    if (found != bindings.end()) {
+        found->GetBindings().push_back(path);
+    } else {
+        bindings.push_back({ material, { path } });
+    }
+}
+
+Mtl* _GetNodeMaterial(INode* exportedNode)
+{
+    if (!exportedNode) {
+        return nullptr;
+    }
+
+    Mtl* material = exportedNode->GetMtl();
+    if (!material) {
+        // node without applied material
+        return nullptr;
+    }
+
+    IXRefMaterial18* xrefMaterial = dynamic_cast<IXRefMaterial18*>(material);
+    if (xrefMaterial) {
+        Mtl* xrefmat = nullptr;
+        if (xrefMaterial->IsOverrideMaterialEnabled()) {
+            xrefmat = xrefMaterial->GetOverrideMaterial();
+        } else {
+            xrefmat = xrefMaterial->GetSourceMaterial(true);
+        }
+        return xrefmat;
+    }
+    return material;
+}
+
+void _AddPrimWithMultiMaterialtoMaterialMap(
+    const UsdPrim&    usdPrim,
+    MultiMtl*         multiMaterial,
+    MaterialBindings& materialBindings)
+{
+    // get material ids
+    IParamBlock2* mtlParamBlock2 = multiMaterial->GetParamBlockByID(0);
+    short         paramId = MaxUsd::FindParamId(mtlParamBlock2, L"materialIDList");
+    std::set<int> matIdSet;
+    Interval      valid = FOREVER;
+    for (int i = 0; i < multiMaterial->NumSubs(); ++i) {
+        int matId;
+        mtlParamBlock2->GetValue(paramId, 0, matId, valid, i);
+        matIdSet.insert(matId);
+    }
+
+    std::vector<UsdGeomSubset> materialSubSets;
+    for (auto child : usdPrim.GetAllChildren()) {
+        if (child.IsA<UsdGeomSubset>()) {
+            materialSubSets.push_back(UsdGeomSubset(child));
+        }
+    }
+
+    // We want to handle out of bounds material ids the same way max does it (overflow back
+    // to the first submtl, using a modulo) : actual = matId % NumSubsMtl
+    auto resolveMatId = [&multiMaterial](int matId) { return matId % multiMaterial->NumSubMtls(); };
+
+    if (!materialSubSets.empty()) {
+        for (const UsdGeomSubset& subset : materialSubSets) {
+            SdfPath subsetUsdPath = subset.GetPrim().GetPath();
+
+            int        matId = MaxUsd::MeshConverter::GetMaterialIdFromCustomData(subset.GetPrim());
+            const auto matIdIter = matIdSet.find(resolveMatId(matId));
+            if (matIdIter != matIdSet.end()) {
+                Mtl* material = multiMaterial->GetSubMtl(*matIdIter);
+                if (material) {
+                    AddMaterialBinding(materialBindings, material, subsetUsdPath);
+                }
+            }
+        }
+    } else {
+        // this is for the case where one material is used in the submaterial
+        // (no subset is generated)
+        int matId { -1 };
+        if (usdPrim.IsInstance()) {
+            // if we are looking at an instance prim, the custom data should be on the prim we
+            // inherited
+            matId = MaxUsd::MeshConverter::GetMaterialIdFromCustomData(
+                usdPrim.GetPrototype().GetChildren().front());
+        } else {
+            // if we are not looking at an instance prim, the custom data should be on the prim
+            // itself
+            matId = MaxUsd::MeshConverter::GetMaterialIdFromCustomData(usdPrim);
+        }
+
+        const auto matIdIter = matIdSet.find(resolveMatId(matId));
+        if (matIdIter != matIdSet.end()) {
+            Mtl* material = multiMaterial->GetSubMtl(*matIdIter);
+            if (material) {
+                AddMaterialBinding(materialBindings, material, usdPrim.GetPath());
+            }
+        }
+    }
+}
+
+UsdPrim BreakInstancingAndCopySubset(
+    const UsdStageRefPtr&             stage,
+    const UsdPrim&                    instancePrim,
+    const UsdPrim&                    prototypeChildPrim,
+    const std::vector<UsdGeomSubset>& subsetToCopy)
+{
+    struct SubsetInfo
+    {
+        SubsetInfo(const UsdGeomSubset& subset)
+            : name(subset.GetPath().GetName())
+            ,
+            // +1 because the goal is to copy the data, not the index
+            customDataMatID(
+                MaxUsd::MeshConverter::GetMaterialIdFromCustomData(subset.GetPrim()) + 1)
+        {
+            subset.GetIndicesAttr().Get(&indices);
+            subset.GetElementTypeAttr().Get(&elementType);
+            subset.GetFamilyNameAttr().Get(&familyName);
+        }
+        std::string name;
+        VtIntArray  indices;
+        TfToken     elementType;
+        TfToken     familyName;
+        VtValue     customDataMatID;
+    };
+    // Copy information needed from the prototype prim subsets
+    std::list<SubsetInfo> subsetInfoList;
+    for (const auto& subset : subsetToCopy) {
+        subsetInfoList.push_back(SubsetInfo(subset));
+    }
+
+    // Break instancing
+    instancePrim.SetInstanceable(false);
+    auto overridePrimPath
+        = instancePrim.GetPath().AppendChild(TfToken(prototypeChildPrim.GetPath().GetName()));
+    auto overridePrim = stage->DefinePrim(overridePrimPath);
+
+    // Recreate subsets on the prim
+    UsdGeomImageable geom(overridePrim);
+    for (const auto& subset : subsetInfoList) {
+        auto newSubset = UsdGeomSubset::CreateGeomSubset(
+            geom, TfToken(subset.name), subset.elementType, subset.indices, subset.familyName);
+        // Custom data will be 0 if not set.
+        if (subset.customDataMatID != 0) {
+            newSubset.GetPrim().SetCustomDataByKey(MaxUsd::MetaData::matId, subset.customDataMatID);
+        }
+    }
+
+    return overridePrim;
+}
+
+void _AddInstancePrimsToMaterialMap(
+    const MaxUsdWriteJobContext&                            jobCtx,
+    const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind,
+    MaterialBindings&                                       materialBindings)
+{
+    // Reverse the map, in this function, we look for the source nodes of existing
+    // prims.
+    std::map<pxr::SdfPath, INode*> bindablePrimsToNodes;
+    for (const auto& entry : jobCtx.GetNodesToPrimsMap()) {
+        if (primsToMaterialBind.find(entry.second) == primsToMaterialBind.end()) {
+            continue;
+        }
+        bindablePrimsToNodes.insert({ entry.second, entry.first });
+    }
+
+    // find node from instance prim
+    auto GetNodeFromInstancePrim = [bindablePrimsToNodes](const UsdPrim& prim) -> INode* {
+        auto maxNodeIter = bindablePrimsToNodes.find(prim.GetPath());
+        if (maxNodeIter == bindablePrimsToNodes.end()) {
+            maxNodeIter = bindablePrimsToNodes.find(prim.GetParent().GetPath());
+        }
+        return (maxNodeIter != bindablePrimsToNodes.end() ? maxNodeIter->second : nullptr);
+    };
+
+    std::vector<UsdPrim> prototypes = jobCtx.GetUsdStage()->GetPrototypes();
+    for (const UsdPrim& prototype : prototypes) {
+        auto instancePrims = prototype.GetInstances();
+
+        // For every instance of a given prototype prim check if they all use the same material
+        bool   sameMaterialForAllInstances { true };
+        INode* exportedNode = GetNodeFromInstancePrim(instancePrims[0]);
+        // The instanced prim may not be from any 3dsMax node, for example if it comes from another
+        // USD Layer which was referenced in the Max scene by a USD Stage Object.
+        if (!exportedNode) {
+            continue;
+        }
+
+        Mtl* firstInstanceMaterial = _GetNodeMaterial(exportedNode);
+        for (auto it = std::next(instancePrims.begin()); it != instancePrims.end(); ++it) {
+            auto nextExportedNode = GetNodeFromInstancePrim(*it);
+            if (!nextExportedNode) {
+                continue;
+            }
+            Mtl* nextInstanceMaterial = _GetNodeMaterial(nextExportedNode);
+            if (nextInstanceMaterial != firstInstanceMaterial) {
+                sameMaterialForAllInstances = false;
+                break;
+            }
+        }
+
+        if (sameMaterialForAllInstances) {
+            // If every instances use the same material keep instancing
+            if (!firstInstanceMaterial) {
+                // no material on instances set (prototype)
+                continue;
+            }
+            // Ugly assumption! since we know 3ds Max on export will use inherits and the inherited
+            // prim will only have one child. Retrieve the prim that the instance prim inherit from
+            // and add its only child to the material map.
+            // TODO : Figure out material binding for instancing setup by custom prim writers.
+            const auto firstInstance = instancePrims[0];
+            auto       directInherits = firstInstance.GetInherits().GetAllDirectInherits();
+            if (directInherits.empty()) {
+                // Instancing not based on inherits, it was not setup by us. Skip material binding.
+                MaxUsd::Log::Warn(
+                    L"Unable to perform material assignment for instance prototype {0} from node "
+                    L"\"{1}\". "
+                    L"Only instancing based on inheritance is supported for material binding.",
+                    MaxUsd::UsdStringToMaxString(firstInstance.GetPrototype().GetPath().GetString())
+                        .data(),
+                    exportedNode->GetName());
+                continue;
+            }
+
+            auto basePrimPath = directInherits[0];
+            auto basePrim = jobCtx.GetUsdStage()->GetPrimAtPath(basePrimPath);
+
+            if (!basePrim.IsValid()) {
+                MaxUsd::Log::Warn(
+                    L"Unable to perform material assignment for instance prototype {0} from node "
+                    L"\"{1}\". {2} is not a "
+                    "valid prim path.",
+                    MaxUsd::UsdStringToMaxString(firstInstance.GetPrototype().GetPath().GetString())
+                        .data(),
+                    exportedNode->GetName(),
+                    MaxUsd::UsdStringToMaxString(basePrimPath.GetString()).data());
+                continue;
+            }
+
+            const auto children = basePrim.GetAllChildren();
+            if (children.empty()) {
+                MaxUsd::Log::Warn(
+                    L"Unable to perform material assignment for instance prototype {0} from node "
+                    L"{1}. {2} has no children.",
+                    MaxUsd::UsdStringToMaxString(firstInstance.GetPrototype().GetPath().GetString())
+                        .data(),
+                    exportedNode->GetName(),
+                    MaxUsd::UsdStringToMaxString(basePrimPath.GetString()).data());
+                continue;
+            }
+
+            auto      basePrimChildPrim = basePrim.GetAllChildren().front();
+            MultiMtl* multiMaterial = dynamic_cast<MultiMtl*>(firstInstanceMaterial);
+            if (multiMaterial) {
+                _AddPrimWithMultiMaterialtoMaterialMap(
+                    basePrimChildPrim, multiMaterial, materialBindings);
+            } else {
+                AddMaterialBinding(
+                    materialBindings, firstInstanceMaterial, basePrimChildPrim.GetPath());
+            }
+        } else {
+            // If all instances don't have the same material, add the instance prim(s) to the
+            // materials_map
+            for (const auto& instancePrim : instancePrims) {
+                INode* exportedNode = GetNodeFromInstancePrim(instancePrim);
+                if (!exportedNode) {
+                    continue;
+                }
+
+                Mtl* material = _GetNodeMaterial(exportedNode);
+                if (!material) {
+                    continue;
+                }
+
+                MultiMtl* multiMaterial = dynamic_cast<MultiMtl*>(material);
+
+                if (multiMaterial) {
+                    // For the Multi-material copy the subsets from the prototype child prim and
+                    // break instancing
+                    auto prototypeChildPrim = instancePrim.GetPrototype().GetChildren().front();
+                    UsdShadeMaterialBindingAPI bindingAPI(prototypeChildPrim);
+                    auto                       subsetToCopy = bindingAPI.GetMaterialBindSubsets();
+                    if (subsetToCopy.empty()) {
+                        _AddPrimWithMultiMaterialtoMaterialMap(
+                            instancePrim, multiMaterial, materialBindings);
+                    } else {
+                        UsdPrim overridePrim = BreakInstancingAndCopySubset(
+                            jobCtx.GetUsdStage(), instancePrim, prototypeChildPrim, subsetToCopy);
+                        // Do the binding on the newly created override prim that contains the
+                        // copied subsets
+                        _AddPrimWithMultiMaterialtoMaterialMap(
+                            overridePrim, multiMaterial, materialBindings);
+                    }
+                } else {
+                    AddMaterialBinding(materialBindings, material, instancePrim.GetPath());
+                }
+            }
+        }
+    }
+}
+
+MaterialBindings FetchMaterials(
+    const MaxUsdWriteJobContext&                            writeJobContext,
+    const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind)
+{
+    MaterialBindings materialBindings;
+
+    const auto nodeToPrims = writeJobContext.GetNodesToPrimsMap();
+    // Build the inverse of the map as well, useful in the loop below.
+    std::map<pxr::SdfPath, INode*> primsToNodes;
+    for (const auto& pair : nodeToPrims) {
+        primsToNodes.insert({ pair.second, pair.first });
+    }
+
+    // gather materials from exported nodes
+    for (const auto& nodePrim : nodeToPrims) {
+        if (primsToMaterialBind.find(nodePrim.second) == primsToMaterialBind.end()) {
+            continue;
+        }
+
+        INode* exportedNode = nodePrim.first;
+        Mtl*   material = _GetNodeMaterial(exportedNode);
+        if (!material) {
+            // node without applied material
+            continue;
+        }
+
+        //  handle xref materials
+        IXRefMaterial18* xrefMaterial = dynamic_cast<IXRefMaterial18*>(material);
+        if (xrefMaterial) {
+            Mtl* sourceMaterial = nullptr;
+            if (xrefMaterial->IsOverrideMaterialEnabled()) {
+                sourceMaterial = xrefMaterial->GetOverrideMaterial();
+            } else {
+                sourceMaterial = xrefMaterial->GetSourceMaterial(true);
+            }
+            if (!sourceMaterial) {
+                continue;
+            }
+            material = sourceMaterial;
+        }
+
+        // Find the prim on which to perform material binding. Typically we end up with just one
+        // prim, but if a custom writer produces more than one prim, we could end up with more.
+        std::vector<pxr::UsdPrim> usdPrimsToBind;
+
+        auto nodeRootPrim = writeJobContext.GetUsdStage()->GetPrimAtPath(nodePrim.second);
+
+        auto isInheritInstance = [](const pxr::UsdPrim& prim) {
+            return prim.IsInstance() && prim.GetInherits().GetAllDirectInherits().size() == 1;
+        };
+
+        // If the node's root prim is a geom prim, bind the material to that.
+        if (nodeRootPrim.IsA<UsdGeomGprim>()) {
+            usdPrimsToBind.push_back(nodeRootPrim);
+        }
+        // We might have a wrapper prim to manage node/object transform and/or instancing...
+        else {
+            // Material binding on instances is a special case, it is handled differently
+            // from _AddInstancePrimsToMaterialMap() below.
+            if (isInheritInstance(nodeRootPrim)) {
+                continue;
+            }
+
+            // Bind to all the children prim that are not from the source node's child nodes (in
+            // other words, all prims that were generated by the node's own prim writer. Ignore
+            // instances, instances are handled differently from _AddInstancePrimsToMaterialMap().
+            for (const auto& prim : nodeRootPrim.GetChildren()) {
+                if (primsToNodes.find(prim.GetPath()) != primsToNodes.end()) {
+                    continue;
+                }
+                usdPrimsToBind.push_back(prim);
+            }
+            // Typically for instanced node we would find the instance prim either at the top level
+            // prim, or one below. Other scenarios may originate from custom exported data, but
+            // those are not handled here. If the "default" material assignment behavior is not
+            // suitable in those case, prim writers can opt out of material assignment.
+            if (usdPrimsToBind.size() == 1) {
+                const auto& prim = usdPrimsToBind[0];
+                if (isInheritInstance(prim)) {
+                    continue;
+                }
+            }
+        }
+
+        for (auto& prim : usdPrimsToBind) {
+            MultiMtl* multiMaterial = dynamic_cast<MultiMtl*>(material);
+            if (multiMaterial) {
+                _AddPrimWithMultiMaterialtoMaterialMap(prim, multiMaterial, materialBindings);
+            } else {
+                AddMaterialBinding(materialBindings, material, prim.GetPath());
+            }
+        }
+    }
+    _AddInstancePrimsToMaterialMap(writeJobContext, primsToMaterialBind, materialBindings);
+
+    // sorting on material is done
+    // (totally superfluous but needed to have deterministic automation tests)
+    std::sort(
+        materialBindings.begin(),
+        materialBindings.end(),
+        [](MaterialBinding& a, MaterialBinding& b) {
+            Mtl* materialA = a.GetMaterial();
+            Mtl* materialB = b.GetMaterial();
+            if (materialA->GetName() == materialB->GetName()) {
+                return Animatable::GetHandleByAnim(materialA)
+                    < Animatable::GetHandleByAnim(materialB);
+            }
+            return materialA->GetName() < materialB->GetName();
+        });
+
+    return materialBindings;
+}
+
+UsdShadeOutput CreateShaderOutputAndConnectMaterial(
+    UsdShadeShader&   shader,
+    UsdShadeMaterial& material,
+    const TfToken&    terminalName,
+    const TfToken&    renderContext)
+{
+    if (!shader || !material) {
+        return UsdShadeOutput();
+    }
+
+    UsdShadeOutput materialOutput;
+    if (terminalName == UsdShadeTokens->surface) {
+        materialOutput = material.CreateSurfaceOutput(renderContext);
+    }
+    // TODO - volume and displacement is not handled by 3ds Max
+    else if (terminalName == UsdShadeTokens->volume) {
+        materialOutput = material.CreateVolumeOutput(renderContext);
+    } else if (terminalName == UsdShadeTokens->displacement) {
+        materialOutput = material.CreateDisplacementOutput(renderContext);
+    } else {
+        return UsdShadeOutput();
+    }
+
+    UsdShadeOutput shaderOutput = shader.CreateOutput(terminalName, materialOutput.GetTypeName());
+
+    UsdPrim parentPrim = shader.GetPrim().GetParent();
+    if (parentPrim == material.GetPrim()) {
+        materialOutput.ConnectToSource(shaderOutput);
+    } else {
+        // If the surface is inside a multi-material node graph, then we must create an intermediate
+        // output on the NodeGraph
+        UsdShadeNodeGraph parentNodeGraph(parentPrim);
+        UsdShadeOutput    parentOutput
+            = parentNodeGraph.CreateOutput(terminalName, materialOutput.GetTypeName());
+        parentOutput.ConnectToSource(shaderOutput);
+        materialOutput.ConnectToSource(parentOutput);
+    }
+    return shaderOutput;
+}
+
+} // namespace MaxUsdShadingUtils
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/ShadingUtils.h b/src/MaxUsd/Translators/ShadingUtils.h
new file mode 100644
index 0000000..2fed433
--- /dev/null
+++ b/src/MaxUsd/Translators/ShadingUtils.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "WriteJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usdShade/material.h>
+#include <pxr/usd/usdShade/output.h>
+#include <pxr/usd/usdShade/shader.h>
+
+class Mtl;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+namespace MaxUsdShadingUtils {
+
+MaxUSDAPI MaterialBindings FetchMaterials(
+    const MaxUsdWriteJobContext&                            writeJobContext,
+    const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind);
+
+// Breaks the instancing of the given instance prim and copies the specified subset from the
+// prototype child prim to the instance prim.
+MaxUSDAPI UsdPrim BreakInstancingAndCopySubset(
+    const UsdStageRefPtr&             stage,
+    const UsdPrim&                    instancePrim,
+    const UsdPrim&                    prototypeChildPrim,
+    const std::vector<UsdGeomSubset>& subsetToCopy);
+
+MaxUSDAPI UsdShadeOutput CreateShaderOutputAndConnectMaterial(
+    UsdShadeShader&   shader,
+    UsdShadeMaterial& material,
+    const TfToken&    terminalName,
+    const TfToken&    renderContext);
+
+} // namespace MaxUsdShadingUtils
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorLight.cpp b/src/MaxUsd/Translators/TranslatorLight.cpp
new file mode 100644
index 0000000..765521d
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorLight.cpp
@@ -0,0 +1,335 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorLight.h"
+
+#include "TranslatorPrim.h"
+#include "TranslatorUtils.h"
+#include "TranslatorXformable.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdLux/boundableLightBase.h>
+#include <pxr/usd/usdLux/cylinderLight.h>
+#include <pxr/usd/usdLux/diskLight.h>
+#include <pxr/usd/usdLux/rectLight.h>
+#include <pxr/usd/usdLux/shadowAPI.h>
+#include <pxr/usd/usdLux/shapingAPI.h>
+#include <pxr/usd/usdLux/sphereLight.h>
+
+#include <AssetManagement/iassetmanager.h>
+#include <lslights.h>
+#include <units.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+bool MaxUsdTranslatorLight::Read(
+    const UsdPrim&                        prim,
+    const MaxUsd::MaxSceneBuilderOptions& args,
+    MaxUsdReadJobContext&                 context)
+{
+    // Fingerprint the given USD Light Prim to find the most appropriate type of 3ds Max Photometric
+    // Light it should be translated to:
+    const auto                 timeConfig = args.GetResolvedTimeConfig(prim.GetStage());
+    auto                       timeCode = timeConfig.GetStartTimeCode();
+    Class_ID                   photometricLightType = LS_POINT_LIGHT_ID;
+    LightscapeLight::DistTypes distributionType = LightscapeLight::DIFFUSE_DIST;
+    if (prim.IsA<UsdLuxDiskLight>()) {
+        photometricLightType = LS_DISC_LIGHT_ID;
+    } else if (prim.IsA<UsdLuxRectLight>()) {
+        photometricLightType = LS_AREA_LIGHT_ID;
+    } else if (prim.IsA<UsdLuxSphereLight>()) {
+        photometricLightType = LS_SPHERE_LIGHT_ID;
+
+        // USD Sphere Lights support a "treatAsPoint" attribute, which can be used to convey
+        // information about Point Light characteristics:
+        UsdLuxSphereLight sphereLight(prim);
+        bool              treatAsPointLight = false;
+        if (sphereLight.GetTreatAsPointAttr().Get(&treatAsPointLight, timeCode)
+            && treatAsPointLight) {
+            photometricLightType = LS_POINT_LIGHT_ID;
+        }
+        distributionType = LightscapeLight::ISOTROPIC_DIST;
+    } else if (prim.IsA<UsdLuxCylinderLight>()) {
+        photometricLightType = LS_CYLINDER_LIGHT_ID;
+
+        // USD Cylinder Lights support a "treatAsLine" attribute, which can be used to convey
+        // information about Linear Light characteristics:
+        UsdLuxCylinderLight cylinderLight(prim);
+        bool                treatAsLineLight = false;
+        if (cylinderLight.GetTreatAsLineAttr().Get(&treatAsLineLight, timeCode)
+            && treatAsLineLight) {
+            photometricLightType = LS_LINEAR_LIGHT_ID;
+        }
+        distributionType = LightscapeLight::ISOTROPIC_DIST;
+    }
+
+    UsdLuxBoundableLightBase usdLight(prim);
+    TimeValue                time
+        = MaxUsd::GetMaxTimeValueFromUsdTimeCode(prim.GetStage(), timeConfig.GetStartTimeCode());
+    ;
+    LightscapeLight2* photometricLight = static_cast<LightscapeLight2*>(
+        GetCOREInterface17()->CreateInstance(LIGHT_CLASS_ID, photometricLightType));
+    photometricLight->Enable(TRUE);
+    photometricLight->SetUseLight(TRUE);
+    photometricLight->SetDistribution(distributionType);
+
+    // These are currently only subsets of both USD and 3ds Max lights, and additional enhancements
+    // will be required in the future to support intensity, shadow, shapes, etc.
+
+    // Enable color temperature (mapping to USD's "enableColorTemperature" attribute):
+    bool enableColorTemperature = false;
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdLight.GetEnableColorTemperatureAttr(),
+        [photometricLight,
+         &enableColorTemperature](const VtValue& value, const UsdTimeCode&, const TimeValue&) {
+            enableColorTemperature = value.Get<bool>();
+            photometricLight->SetUseKelvin(enableColorTemperature);
+            return true;
+        },
+        context);
+
+    // Color temperature (mapping to USD's "colorTemperature" attribute):
+    // only set color temperature if the light has specified to use the value
+    if (enableColorTemperature) {
+        if (!MaxUsdTranslatorUtil::ReadUsdAttribute(
+                usdLight.GetColorTemperatureAttr(),
+                [photometricLight](
+                    const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+                    photometricLight->SetKelvin(timeValue, value.Get<float>());
+                    return true;
+                },
+                context)) {
+            MaxUsd::Log::Warn(
+                "Light '{0}' is set to use a color temperature but no value specified.",
+                prim.GetName().GetString());
+        }
+    }
+
+    // Color (mapping to USD's "color" attribute):
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdLight.GetColorAttr(),
+        [photometricLight, enableColorTemperature](
+            const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            GfVec3f usdLightColor = value.Get<GfVec3f>();
+            Point3  maxLightColor(usdLightColor[0], usdLightColor[1], usdLightColor[2]);
+            if (!enableColorTemperature) {
+                // if Color temperature is not used, the default light color component must
+                // be removed from the applied color to get the proper resulting light color
+                maxLightColor = maxLightColor / photometricLight->GetRGBColor(timeValue);
+            }
+            photometricLight->SetRGBFilter(timeValue, maxLightColor);
+            return true;
+        },
+        context);
+
+    // Enable shadow casting (mapping to USD's "shadow:enable" attribute):
+    UsdLuxShadowAPI usdlightShadowProperties(prim);
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdlightShadowProperties.GetShadowEnableAttr(),
+        [photometricLight](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            photometricLight->SetShadow(value.Get<bool>());
+            return true;
+        },
+        context,
+        false);
+
+    // Shadow color (mapping to USD's "shadow:color" attribute):
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdlightShadowProperties.GetShadowColorAttr(),
+        [photometricLight](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            GfVec3f usdLightShadowColor = value.Get<GfVec3f>();
+            Point3  maxLightShadowColor(
+                usdLightShadowColor[0], usdLightShadowColor[1], usdLightShadowColor[2]);
+            photometricLight->SetShadColor(timeValue, maxLightShadowColor);
+            return true;
+        },
+        context,
+        false);
+
+    // Multiplier effect of this light on the diffuse response of materials
+    // default USD value is 1.0 (same has for 3ds Max)
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdLight.GetDiffuseAttr(),
+        [photometricLight,
+         prim](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            float usdLightDiffuseMultiplier = value.Get<float>();
+            photometricLight->SetAffectDiffuse(usdLightDiffuseMultiplier != 0.0f);
+            if (usdLightDiffuseMultiplier != 1.0f && usdLightDiffuseMultiplier != 0.0f) {
+                MaxUsd::Log::Warn(
+                    "Light diffuse multiplier attribute for '{0}' is specified with a value not "
+                    "properly "
+                    "considered by 3ds Max.",
+                    prim.GetName().GetString());
+            }
+            return true;
+        },
+        context,
+        false);
+
+    // Multiplier effect of this light on the specular response of materials
+    // default USD value is 1.0 (same has for 3ds Max)
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdLight.GetSpecularAttr(),
+        [photometricLight,
+         prim](const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+            float usdLightSpecularMultiplier = value.Get<float>();
+            photometricLight->SetAffectSpecular(usdLightSpecularMultiplier != 0.0f);
+            if (usdLightSpecularMultiplier != 1.0f && usdLightSpecularMultiplier != 0.0f) {
+                MaxUsd::Log::Warn(
+                    "Light specular multiplier attribute for '{0}' is specified with a value not "
+                    "properly "
+                    "considered by 3ds Max.",
+                    prim.GetName().GetString());
+            }
+            return true;
+        },
+        context,
+        false);
+
+    // Light radius (for Disk, Sphere and Cylinder lights, mapping to USD's "radius" attribute):
+    auto setLightRadius = [&](auto usdLightWithRadius) {
+        MaxUsdTranslatorUtil::ReadUsdAttribute(
+            usdLightWithRadius.GetRadiusAttr(),
+            [photometricLight](
+                const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+                photometricLight->SetRadius(timeValue, value.Get<float>());
+                return true;
+            },
+            context,
+            false);
+    };
+    if (photometricLightType == LS_SPHERE_LIGHT_ID) {
+        setLightRadius(UsdLuxSphereLight(prim));
+    } else if (photometricLightType == LS_DISC_LIGHT_ID) {
+        setLightRadius(UsdLuxDiskLight(prim));
+    } else if (photometricLightType == LS_CYLINDER_LIGHT_ID) {
+        setLightRadius(UsdLuxCylinderLight(prim));
+    }
+
+    // Width & height (for Rectangle lights, mapping to USD's "width" and "height" attributes):
+    if (photometricLightType == LS_AREA_LIGHT_ID) {
+        UsdLuxRectLight usdRectangleLight(prim);
+        MaxUsdTranslatorUtil::ReadUsdAttribute(
+            usdRectangleLight.GetWidthAttr(),
+            [photometricLight](
+                const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+                photometricLight->SetWidth(timeValue, value.Get<float>());
+                return true;
+            },
+            context,
+            false);
+        MaxUsdTranslatorUtil::ReadUsdAttribute(
+            usdRectangleLight.GetHeightAttr(),
+            [photometricLight](
+                const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+                photometricLight->SetLength(
+                    timeValue,
+                    value.Get<float>()); // 3ds Max uses "Length" for both "height" and "length".
+                return true;
+            },
+            context,
+            false);
+    }
+    // Length (for Cylinder and Line lights, mapping to USD's "length" attribute):
+    else if (
+        photometricLightType == LS_CYLINDER_LIGHT_ID
+        || photometricLightType == LS_LINEAR_LIGHT_ID) {
+        UsdLuxCylinderLight usdCylinderLight(prim);
+        MaxUsdTranslatorUtil::ReadUsdAttribute(
+            usdCylinderLight.GetLengthAttr(),
+            [photometricLight](
+                const VtValue& value, const UsdTimeCode&, const TimeValue& timeValue) {
+                photometricLight->SetLength(timeValue, value.Get<float>());
+                return true;
+            },
+            context,
+            false);
+    }
+
+    // IES Light Profile file (mapping to USD's "shaping:ies:file" attribute):
+    UsdLuxShapingAPI usdLightShape(prim);
+    SdfAssetPath     iesLightProfileAssetPath;
+    if (usdLightShape.GetShapingIesFileAttr().Get(&iesLightProfileAssetPath, timeCode)) {
+        using namespace MaxSDK::AssetManagement;
+
+        std::wstring assetPath(
+            iesLightProfileAssetPath.GetResolvedPath().begin(),
+            iesLightProfileAssetPath.GetResolvedPath().end());
+        MSTR      lightProfileFile(assetPath.c_str());
+        AssetUser lightProfileAsset = IAssetManager::GetInstance()->GetAsset(
+            lightProfileFile, AssetType::kPhotometricAsset);
+        photometricLight->SetDistribution(LightscapeLight::DistTypes::WEB_DIST);
+        photometricLight->SetWebFile(lightProfileAsset);
+    }
+
+    // Intensity (mapping to USD's "intensity" attribute):
+    // if not specified, keeping default 1500cd
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        usdLight.GetIntensityAttr(),
+        [usdLight, photometricLight, prim](
+            const VtValue& value, const UsdTimeCode& timeCode, const TimeValue& timeValue) {
+            bool usdLightNormalized = false;
+            if (usdLight.GetNormalizeAttr().Get(&usdLightNormalized, timeCode)
+                && !usdLightNormalized) {
+                MaxUsd::Log::Warn(
+                    "Light intensity for '{0}' is not normalized and might not give the expected "
+                    "output.",
+                    prim.GetName().GetString());
+            }
+
+            // convert intensity value to 3ds Max candelas
+            float lightIntensity = value.Get<float>();
+            // scale to system units.
+            lightIntensity *= static_cast<float>(
+                GetSystemUnitScale(UNITS_METERS) * GetSystemUnitScale(UNITS_METERS));
+            // ZAP's magic adjustment
+            lightIntensity /= static_cast<float>(M_PI);
+            lightIntensity
+                *= 1500; // TODO - need
+                         // GetRenderSessionContext().GetRenderSettings().GetPhysicalScale(translationTime,
+                         // newValidity)
+
+            if (photometricLight->GetDistribution() == LightscapeLight::WEB_DIST) {
+                lightIntensity = lightIntensity * photometricLight->GetOriginalIntensity() / 1000.f;
+            }
+
+            photometricLight->SetIntensityType(LightscapeLight::IntensityType::CANDELAS);
+            photometricLight->SetIntensity(timeValue, lightIntensity);
+            return true;
+        },
+        context);
+
+    auto createdNode = MaxUsdTranslatorPrim::CreateAndRegisterNode(
+        prim, photometricLight, prim.GetName(), context);
+
+    // position the node
+    Matrix3 correctionMatrix = Matrix3::Identity;
+    if (prim.IsA<UsdLuxCylinderLight>()) {
+        // Special case with cylinder lights
+        // In USD, the expected orientation is on the x-axis, but 3ds Max has it set on the y-axis
+        correctionMatrix.SetRotateZ(HALFPI);
+    }
+    MaxUsdTranslatorXformable::Read(prim, createdNode, context, correctionMatrix);
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+// Disable obscure warning only occurring for 2022 (pixar usd version: 21.11):
+// no definition for inline function : pxr::DefaultValueHolder Was not able to identify what is
+// triggering this.
+#pragma warning(disable : 4506)
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorLight.h b/src/MaxUsd/Translators/TranslatorLight.h
new file mode 100644
index 0000000..1a13180
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorLight.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \brief Provides helper functions for translating to/from UsdLux
+struct MaxUsdTranslatorLight
+{
+    /// Import a UsdLuxLightAPI schema as a corresponding 3ds Max light.
+    /// Return true if the 3ds Max light was properly created and imported
+    MaxUSDAPI static bool Read(
+        const UsdPrim&                        prim,
+        const MaxUsd::MaxSceneBuilderOptions& args,
+        MaxUsdReadJobContext&                 context);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorMaterial.cpp b/src/MaxUsd/Translators/TranslatorMaterial.cpp
new file mode 100644
index 0000000..f15dc61
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorMaterial.cpp
@@ -0,0 +1,176 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorMaterial.h"
+
+#include "ShadingModeImporter.h"
+#include "ShadingModeRegistry.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <pxr/usd/usdShade/material.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+
+#include <Animatable.h>
+#include <stdmat.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+Mtl* MaxUsdTranslatorMaterial::Read(
+    const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+    const UsdShadeMaterial&               shadeMaterial,
+    const UsdGeomGprim&                   boundPrim,
+    MaxUsdReadJobContext&                 context)
+{
+    MaxUsdShadingModeImportContext importContext(shadeMaterial, boundPrim, context);
+    Mtl*                           mat = nullptr;
+
+    auto localOptions = buildOptions;
+    for (const auto& shadingMode : buildOptions.GetShadingModes()) {
+        if (!VtDictionaryIsHolding<TfToken>(shadingMode, MaxUsdShadingModesTokens->mode)) {
+            continue;
+        }
+
+        if (VtDictionaryGet<TfToken>(shadingMode, MaxUsdShadingModesTokens->mode)
+            == MaxUsdShadingModeTokens->none) {
+            break;
+        }
+
+        if (MaxUsdShadingModeImporter importer = MaxUsdShadingModeRegistry::GetImporter(
+                VtDictionaryGet<TfToken>(shadingMode, MaxUsdShadingModesTokens->mode))) {
+            localOptions.SetShadingModes(
+                MaxUsd::MaxSceneBuilderOptions::ShadingModes(1, shadingMode));
+            mat = importer(&importContext, localOptions);
+        }
+        if (mat) {
+            importContext.AddCreatedMaterial(shadeMaterial.GetPrim(), mat);
+            return mat;
+        }
+    }
+    return mat;
+}
+
+bool MaxUsdTranslatorMaterial::AssignMaterial(
+    const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+    const UsdGeomGprim&                   primSchema,
+    INode*                                node,
+    MaxUsdReadJobContext&                 context)
+{
+    const UsdShadeMaterialBindingAPI bindingAPI(primSchema.GetPrim());
+    UsdShadeMaterial                 meshMaterial = bindingAPI.ComputeBoundMaterial();
+    if (meshMaterial) {
+        Mtl* mat = Read(buildOptions, meshMaterial, primSchema, context);
+        if (!mat) {
+            return false;
+        }
+        auto matName = MaxUsd::UsdStringToMaxString(meshMaterial.GetPath().GetName());
+        mat->SetName(matName);
+
+        // assign material to mesh
+        node->SetMtl(mat);
+        node->NotifyDependents(FOREVER, PART_MTL, REFMSG_CHANGE);
+        node->InvalidateWS();
+
+        // assign material to faces
+        std::vector<UsdGeomSubset> faceSubsets
+            = UsdShadeMaterialBindingAPI(primSchema.GetPrim()).GetMaterialBindSubsets();
+
+        if (!faceSubsets.empty()) {
+            std::sort(
+                faceSubsets.begin(),
+                faceSubsets.end(),
+                [](const UsdGeomSubset& s1, const UsdGeomSubset& s2) {
+                    return s1.GetPrim().GetName() < s2.GetPrim().GetName();
+                });
+
+            // Start by populating all the material ID for subset with custom data
+            // std::map<int, std::string> matIdToGeomSubsetPrimNameMap;
+            std::vector<int> subsetWithNoCustomDataIndexes;
+            for (int i = 0; i < faceSubsets.size(); i++) {
+                UsdGeomSubset subset = faceSubsets[i];
+                int matId = MaxUsd::MeshConverter::GetMaterialIdFromCustomData(subset.GetPrim());
+                if (matId >= 0) {
+                    auto multiMat = dynamic_cast<MultiMtl*>(node->GetMtl());
+                    if (multiMat) {
+                        multiMat->SetSubMtlAndName(matId, mat, matName);
+                    }
+                }
+            }
+        }
+    } else {
+        // assign material to faces
+        std::vector<UsdGeomSubset> faceSubsets
+            = UsdShadeMaterialBindingAPI(primSchema.GetPrim()).GetMaterialBindSubsets();
+        if (faceSubsets.empty()) {
+            return false;
+        }
+        for (int i = 0; i < faceSubsets.size(); i++) {
+            auto                             subsetPrim = faceSubsets[i];
+            const UsdShadeMaterialBindingAPI bindingAPI(subsetPrim.GetPrim());
+            UsdShadeMaterial                 meshMaterial = bindingAPI.ComputeBoundMaterial();
+            if (!meshMaterial) {
+                continue;
+            }
+
+            // fetch material
+            Mtl* mat = MaxUsdTranslatorMaterial::Read(
+                context.GetArgs(), meshMaterial, UsdGeomGprim(subsetPrim), context);
+            if (!mat) {
+                continue;
+            }
+            auto matName = MaxUsd::UsdStringToMaxString(meshMaterial.GetPath().GetName());
+            mat->SetName(matName);
+
+            // assign material to proper INode submtl
+            MultiMtl* multiMat = dynamic_cast<MultiMtl*>(node->GetMtl());
+            if (multiMat) {
+                auto matName = MaxUsd::UsdStringToMaxString(subsetPrim.GetPath().GetName());
+                for (int i = 0; i < multiMat->NumSubMtls(); ++i) {
+                    MSTR name;
+                    multiMat->GetSubMtlName(i, name);
+                    if (name == matName) {
+                        multiMat->SetSubMtlAndName(i, mat, matName);
+                    }
+                }
+            }
+        }
+    }
+    return true;
+}
+
+/* static */
+void MaxUsdTranslatorMaterial::ExportMaterials(
+    MaxUsdWriteJobContext&                                  writeJobContext,
+    const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind,
+    MaxUsd::MaxProgressBar&                                 progress)
+{
+    const TfToken& shadingMode = writeJobContext.GetArgs().GetShadingMode();
+    if (shadingMode == MaxUsdShadingModeTokens->none) {
+        return;
+    }
+
+    if (auto exporterCreator = MaxUsdShadingModeRegistry::GetExporter(shadingMode)) {
+        if (auto exporter = exporterCreator()) {
+            exporter->DoExport(writeJobContext, primsToMaterialBind, progress);
+        } else {
+            TF_RUNTIME_ERROR(
+                "Failed creating exporter for shadingMode '%s'.", shadingMode.GetText());
+        }
+    } else {
+        TF_RUNTIME_ERROR("No shadingMode '%s' found.", shadingMode.GetText());
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorMaterial.h b/src/MaxUsd/Translators/TranslatorMaterial.h
new file mode 100644
index 0000000..26cca56
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorMaterial.h
@@ -0,0 +1,60 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+#include "WriteJobContext.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/Utilities/MaxProgressBar.h>
+
+#include <pxr/usd/usdShade/material.h>
+
+class Mtl;
+class INode;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \brief Provides helper functions for writing UsdShadeMaterial
+struct MaxUsdTranslatorMaterial
+{
+    /// Reads material according to the shading mode found in buildOptions. Some shading modes
+    /// may want to know the boundPrim. This returns a 3ds Max Mtl object.
+    MaxUSDAPI static Mtl* Read(
+        const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+        const UsdShadeMaterial&               shadeMaterial,
+        const UsdGeomGprim&                   boundPrim,
+        MaxUsdReadJobContext&                 context);
+
+    /// Given a prim, assigns a material to it according to the shading mode found in
+    /// buildOption. This will see which UsdShadeMaterial is bound to prim. If the material
+    /// has not been read already, it will read it. The created/retrieved 3ds Max Mtl will be
+    /// assigned to the node.
+    MaxUSDAPI static bool AssignMaterial(
+        const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+        const UsdGeomGprim&                   prim,
+        INode*                                node,
+        MaxUsdReadJobContext&                 context);
+
+    /// Finds materials in the 3ds Max scene and exports them to the USD
+    /// stage contained in \p writeJobContext.
+    MaxUSDAPI static void ExportMaterials(
+        MaxUsdWriteJobContext&                                  writeJobContext,
+        const pxr::TfHashSet<pxr::SdfPath, pxr::SdfPath::Hash>& primsToMaterialBind,
+        MaxUsd::MaxProgressBar&                                 progress);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorMorpher.cpp b/src/MaxUsd/Translators/TranslatorMorpher.cpp
new file mode 100644
index 0000000..00e19c2
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorMorpher.cpp
@@ -0,0 +1,668 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorMorpher.h"
+
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdSkel/animQuery.h>
+#include <pxr/usd/usdSkel/animation.h>
+#include <pxr/usd/usdSkel/bindingAPI.h>
+#include <pxr/usd/usdSkel/blendshape.h>
+#include <pxr/usd/usdSkel/skinningQuery.h>
+
+#include <maxscript/maxscript.h>
+
+static constexpr auto  ClassID_Morpher = Class_ID(0x17bb6854, 0xa5cba2a3);
+static constexpr float WEIGHT_ANIMATION_THRESHOLD = 0.001f;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+bool MaxUsdTranslatorMorpher::Read(
+    const UsdPrim&              prim,
+    INode*                      maxNode,
+    const MaxUsdReadJobContext& context)
+{
+    if (!maxNode) {
+        return false;
+    }
+
+    UsdSkelBindingAPI skelBinding = UsdSkelBindingAPI::Get(context.GetStage(), prim.GetPath());
+
+    SdfPathVector blendShapeTargets;
+    skelBinding.GetBlendShapeTargetsRel().GetTargets(&blendShapeTargets);
+
+    // no blendshapes for this skel binding. Leave
+    if (blendShapeTargets.empty()) {
+        return false;
+    }
+
+    AddMorphTargets(maxNode, context, blendShapeTargets);
+
+    return true;
+}
+
+bool MaxUsdTranslatorMorpher::ConfigureMorpherAnimations(
+    const UsdSkelSkinningQuery& skinningQuery,
+    const UsdSkelAnimQuery&     animQuery,
+    INode*                      maxNode,
+    const MaxUsdReadJobContext& context)
+{
+    if (!maxNode || !animQuery.IsValid()) {
+        return false;
+    }
+
+    VtTokenArray skinblendShapeOrder;
+    skinningQuery.GetBlendShapeOrder(&skinblendShapeOrder);
+
+    // should only do morpher animations if there are blendshapes
+    if (skinblendShapeOrder.empty()) {
+        return false;
+    }
+
+    const auto allMods = MaxUsd::GetAllModifiers(maxNode);
+    Modifier*  morpherMod = nullptr;
+    for (Modifier* m : allMods) {
+        if (m->ClassID() == ClassID_Morpher) {
+            morpherMod = m;
+            break;
+        }
+    }
+
+    // leave can't find the morpher modifier
+    if (!morpherMod) {
+        return false;
+    }
+
+    SdfPathVector blendShapeTargets;
+    skinningQuery.GetBlendShapeTargetsRel().GetTargets(&blendShapeTargets);
+
+    // animation prim can hold blendshape information for multiple meshes
+    // map the correct order which the blendshapes are in the animation prim
+    VtTokenArray        animBlendShapeOrder = animQuery.GetBlendShapeOrder();
+    std::vector<size_t> correctOrder;
+    correctOrder.reserve(skinblendShapeOrder.size());
+    for (const TfToken& token : skinblendShapeOrder) {
+        const auto iter = std::find(animBlendShapeOrder.begin(), animBlendShapeOrder.end(), token);
+        const auto idx = static_cast<int>(std::distance(animBlendShapeOrder.begin(), iter));
+        if (idx >= 0) {
+            correctOrder.emplace_back(idx);
+        }
+    }
+
+    // Progressive morphers aren't supported for channels above 100 before 3dsMax 2025.1 (ver 27.1
+    // below)
+    const auto maxVersion = MaxSDKSupport::GetMaxVersion();
+    const bool skipInBetweens
+        = maxVersion.empty() || (maxVersion[0] < 27) || (maxVersion[0] == 27 && maxVersion[1] < 1);
+    const UsdSkelAnimation animPrim(animQuery.GetPrim());
+    MaxUsdTranslatorUtil::ReadUsdAttribute(
+        animPrim.GetBlendShapeWeightsAttr(),
+        [morpherMod, &correctOrder, &blendShapeTargets, &context, skipInBetweens](
+            const VtValue& value, const UsdTimeCode& timeCode, const TimeValue& timeValue) {
+            pxr::VtFloatArray shapeWeights = value.Get<pxr::VtFloatArray>();
+
+            if (timeCode != UsdTimeCode::Default()) {
+                bool isUsingLimits
+                    = static_cast<IParamBlock*>(morpherMod->SubAnim(0))->GetInt(0, timeValue) != 0;
+                for (size_t i = 0; i < correctOrder.size(); ++i) {
+                    if (IParamBlock* animatablePB
+                        = static_cast<IParamBlock*>(morpherMod->SubAnim(static_cast<int>(i) + 1))) {
+                        UsdSkelBlendShape blendShape(
+                            context.GetStage()->GetPrimAtPath(blendShapeTargets[i]));
+
+                        const auto inbetweens = blendShape.GetInbetweens();
+
+                        if (!inbetweens.empty() && i >= 100 && skipInBetweens) {
+                            continue;
+                        }
+
+                        // if any of the inbetweens has a negative weight, the animation weights
+                        // needs to be shifted to account for it
+                        bool hasNegativeWeight = false;
+                        for (auto& inbetween : inbetweens) {
+                            if (inbetween.HasAuthoredWeight()) {
+                                float inBetweenWeight;
+                                inbetween.GetWeight(&inBetweenWeight);
+                                if (inBetweenWeight < 0) {
+                                    hasNegativeWeight = true;
+                                    break;
+                                }
+                            }
+                        }
+
+                        float animationWeight = shapeWeights[correctOrder[i]];
+
+                        // Disable UseLimits property on the Morpher if the animation weight is
+                        // outside the default morpher limit range (0-1)
+                        if (isUsingLimits && (animationWeight < 0 || animationWeight > 1)) {
+                            if (Animatable* morpherControllers = morpherMod->SubAnim(0)) {
+                                static_cast<IParamBlock*>(morpherControllers)
+                                    ->SetValue(0, timeValue, 0);
+                                isUsingLimits = false;
+                            }
+                        }
+
+                        // the following logic should be applied when weight == 0 since it means no
+                        // morpher should be applied
+                        if (hasNegativeWeight) {
+                            /*
+                             * Max's progressive morpher doesn't support negative weights, so need
+                             *to remap negative weights to 0-1. For example: def BlendShape "Box1"
+                             * {
+                             *		uniform point3f[] inbetweens:IBT_0 = [...] (
+                             *			weight = -1
+                             *		)
+                             *		uniform point3f[] inbetweens:IBT_1 = [...] (
+                             *			weight = -0.5
+                             *		)
+                             *		uniform point3f[] inbetweens:IBT_2 = [...] (
+                             *			weight = 0.5 )
+                             *		)
+                             *		uniform vector3f[] offsets = [...]
+                             * }
+                             *
+                             * The example above would be converted to the following:
+                             * IBT_0: (-1 + 1) * 0.5 = 0.0
+                             * IBT_1: (-0.5 + 1) * 0.5 = 0.25
+                             * IBT_2: (0.5 + 1) * 0.5 = 0.75
+                             */
+                            animationWeight = std::max(
+                                (animationWeight + 1) * 0.5f, WEIGHT_ANIMATION_THRESHOLD);
+                        }
+                        // Max's morpher weights are 0-100, so convert the weight from 0-1 to 0-100
+                        animatablePB->SetValue(0, timeValue, animationWeight * 100.f);
+                    }
+                }
+            }
+
+            return true;
+        },
+        context);
+
+    return true;
+}
+
+INode* MaxUsdTranslatorMorpher::CloneMorpherNode(INode* morpherNode)
+{
+    INode* clone = nullptr;
+
+    INodeTab lNodeToBeCloned;
+    lNodeToBeCloned.AppendNode(morpherNode);
+    INodeTab resultSource;
+    INodeTab resultDest;
+
+    Point3 pt(0, 0, 0);
+    GetCOREInterface12()->CloneNodes(
+        lNodeToBeCloned, pt, true, NODE_COPY, &resultSource, &resultDest);
+    if (resultDest.Count() > 0) {
+        clone = resultDest[0];
+    }
+
+    // disable morpher modifier on the clone so that it doesn't affect the original mesh
+    const auto allMods = MaxUsd::GetAllModifiers(clone);
+    for (Modifier* m : allMods) {
+        if (m->ClassID() == ClassID_Morpher) {
+            GetCOREInterface17()->DeleteModifier(*clone, *m);
+            break;
+        }
+    }
+
+    return clone;
+}
+
+bool MaxUsdTranslatorMorpher::AddMorphTargets(
+    INode*                      morpherNode,
+    const MaxUsdReadJobContext& context,
+    const SdfPathVector&        blendShapeTargets)
+{
+    // cloneNode is used by the morpher API to build the morph targets.
+    const auto  stage = context.GetStage();
+    const float scaleFactor = static_cast<float>(MaxUsd::GetUsdToMaxScaleFactor(stage));
+
+    // The node holding the morpher needs to account for scaling factor while performing the morpher
+    // operations So, resize the node with the morpher before doing the operations, then revert back
+    // when it's done
+    INodeTab tab;
+    tab.AppendNode(morpherNode);
+    const auto scaleMorpherNodeScopeGuard = MaxUsd::MakeScopeGuard(
+        [&tab, scaleFactor]() {
+            GetCOREInterface()->ClearNodeSelection();
+            GetCOREInterface()->SelectNodeTab(tab, TRUE, FALSE);
+            GetCOREInterface()->RescaleWorldUnits(scaleFactor, true);
+        },
+        [scaleFactor]() {
+            GetCOREInterface()->RescaleWorldUnits(1.f / scaleFactor, true);
+            GetCOREInterface()->ClearNodeSelection();
+        });
+
+    const auto clonedNode = CloneMorpherNode(morpherNode);
+    if (!clonedNode) {
+        MaxUsd::Log::Error(
+            L"Couldn't clone nodes for Morpher Modifier on \"{}\" .", morpherNode->GetName());
+        return false;
+    }
+
+    // clonedObject is the mesh that will have its vertices modified by the blendshape offsets
+    const auto originalScaledObject = morpherNode->GetObjectRef();
+    const auto clonedObject = clonedNode->GetObjectRef();
+
+    Modifier* morpherMod = static_cast<Modifier*>(CreateInstance(OSM_CLASS_ID, ClassID_Morpher));
+    if (!morpherMod) {
+        MaxUsd::Log::Error(
+            L"Couldn't create a new morpher modifier for node \"{}\" .", morpherNode->GetName());
+        return false;
+    }
+
+    GetCOREInterface12()->AddModifier(*morpherNode, *morpherMod);
+
+    VtVec3fArray deltaPoints, deltaNormals;
+    // cache all the created clones so that they can be deleted after
+    std::vector<INode*> inBetweenClonedNodes;
+
+    for (size_t channelIndex = 0; channelIndex < blendShapeTargets.size(); ++channelIndex) {
+        const auto& blendShapePath = blendShapeTargets[channelIndex];
+        const auto  bsPrim = stage->GetPrimAtPath(blendShapePath);
+        if (!bsPrim.IsValid()) {
+            TF_WARN(
+                "Blendshape doesn't resolve to a valid prim path: %s", blendShapePath.GetText());
+            continue;
+        }
+        UsdSkelBlendShape blendShapePrim(bsPrim);
+        blendShapePrim.GetOffsetsAttr().Get(&deltaPoints);
+        if (deltaPoints.empty()) {
+            continue;
+        }
+
+        VtIntArray pointIndices;
+        blendShapePrim.GetPointIndicesAttr().Get(&pointIndices);
+
+        // pointIndices don't have to be authored in usd. If empty, assume indices are in order
+        // 0..n-1
+        if (pointIndices.empty()) {
+            pointIndices.reserve(deltaPoints.size());
+            for (size_t i = 0; i < deltaPoints.size(); ++i) {
+                pointIndices.emplace_back(i);
+            }
+        }
+
+        ApplyDeltasOffset(
+            originalScaledObject, clonedObject, pointIndices, deltaPoints, scaleFactor);
+
+        // set the cloned node name so that it builds to the proper name on the morpher channel
+        const auto blendShapeName = blendShapePrim.GetPrim().GetName();
+        clonedNode->SetName(MaxUsd::UsdStringToMaxString(blendShapeName).data());
+
+        if (!AddMorpherTargetScript(morpherNode, clonedNode, channelIndex)) {
+            MaxUsd::Log::Warn(
+                L"Error running script to create Morpher \"{}\" names for Node \"{}\"",
+                clonedNode->GetName(),
+                morpherNode->GetName());
+        }
+
+        // revert offset changes done to create the morpher to the cloned node
+        ApplyDeltasOffset(
+            originalScaledObject, clonedObject, pointIndices, deltaPoints, scaleFactor, true);
+        // one blendshape could have several inbetween weights defined
+        bool hasInbetweens = AddAllInBetweens(
+            morpherNode,
+            originalScaledObject,
+            clonedNode,
+            blendShapePrim,
+            pointIndices,
+            channelIndex,
+            inBetweenClonedNodes);
+    }
+
+    inBetweenClonedNodes.emplace_back(clonedNode);
+
+    const auto coreInterface = GetCOREInterface12();
+    for (const auto node : inBetweenClonedNodes) {
+        coreInterface->DeleteNode(node);
+    }
+    return true;
+}
+
+bool MaxUsdTranslatorMorpher::AddAllInBetweens(
+    INode*                   morpherNode,
+    Object*                  originalScaledObject,
+    INode*                   originalClonedNode,
+    const UsdSkelBlendShape& blendShapePrim,
+    const VtIntArray&        blendShapePointIndices,
+    size_t                   morpherIndex,
+    std::vector<INode*>&     inBetweenClonedNodes)
+{
+    const std::vector<UsdSkelInbetweenShape> inBetweens = blendShapePrim.GetInbetweens();
+    if (inBetweens.empty()) {
+        return false;
+    }
+
+    // There's a bug in the morpher modifier that it's not possible to set weights for progressive
+    // morphers on channels above 100. So, if the morpherIndex is above 100, skip the inbetweens and
+    // log an error. This issue has been fixed on 3ds Max 2025.1 (which translates to version 27.1
+    // below)
+    if (morpherIndex >= 100) {
+        const auto maxVersion = MaxSDKSupport::GetMaxVersion();
+        if (maxVersion.empty() || (maxVersion[0] < 27)
+            || (maxVersion[0] == 27 && maxVersion[1] < 1)) {
+            MaxUsd::Log::Error(
+                L"Max morpher modifier only supports progressive morphers for 100 channels. "
+                L"Skipping "
+                L"inbetweens for Node \"{}\" and channel \"{}\"",
+                morpherNode->GetName(),
+                morpherIndex);
+            return false;
+        }
+    }
+
+    // Progressive morphers api requires the max nodes to work on it, so
+    // pool the amount of nodes required to work based on the number of inbetweens.
+    // Also, add an extra inbetween to account for the actual blendshape
+    const float scaleFactor
+        = static_cast<float>(MaxUsd::GetUsdToMaxScaleFactor(blendShapePrim.GetPrim().GetStage()));
+    const size_t diff = (inBetweens.size() + 1) - inBetweenClonedNodes.size();
+    for (size_t i = 0; i < diff; ++i) {
+        inBetweenClonedNodes.emplace_back(CloneMorpherNode(morpherNode));
+    }
+
+    bool hasNegativeWeightInBetween = false;
+    for (size_t i = 0; i < inBetweens.size(); ++i) {
+        const auto inBetween = inBetweens[i];
+        const auto inBetweenName
+            = MaxUsd::UsdStringToMaxString(inBetween.GetAttr().GetName().GetString());
+
+        VtVec3fArray inBetweenDeltaPoints, inBetweenDeltaNormals;
+        inBetween.GetOffsets(&inBetweenDeltaPoints);
+        if (inBetweenDeltaPoints.empty()) {
+            MaxUsd::Log::Warn(
+                L"Blendshape inbetween \"{}\" defined with no offset for Node \"{}\" on channel "
+                L"\"{}\"",
+                inBetweenName.data(),
+                morpherNode->GetName(),
+                morpherIndex);
+            continue;
+        }
+
+        const auto clonedNode = inBetweenClonedNodes[i];
+        // clonedObject is the mesh that will have its vertices offset by the blendshape offsets
+        const auto clonedObject = clonedNode->GetObjectRef();
+
+        ApplyDeltasOffset(
+            originalScaledObject,
+            clonedObject,
+            blendShapePointIndices,
+            inBetweenDeltaPoints,
+            scaleFactor);
+
+        // building a morpher channel uses the node name, properly set it before creating a new
+        // channel
+        clonedNode->SetName(inBetweenName);
+        AddProgressiveMorpherScript(morpherNode, clonedNode, morpherIndex);
+
+        ApplyDeltasOffset(
+            originalScaledObject,
+            clonedObject,
+            blendShapePointIndices,
+            inBetweenDeltaPoints,
+            scaleFactor,
+            true);
+
+        float w;
+        inBetween.GetWeight(&w);
+        if (w < 0) {
+            // Progressive morphers can't have negative weight in 3ds Max, so the weights are
+            // remapped to 0-1. With this shift, the 0 weight would be shifted to 0.5. Because of
+            // this, keep track if any of the inbetweens have negative weights, in order to add the
+            // original mesh (unmodified) with 0.5 weight
+            hasNegativeWeightInBetween = true;
+        }
+    }
+
+    if (hasNegativeWeightInBetween) {
+        // Since Max doesn't support progressive morphers with negative weight, we'll use weights
+        // from 0-49 for the negative in-betweens and then 51-100 for the positive ones. In order to
+        // do that, add a middle reference node of the original shape in the middle (50%) weight
+        const auto middleReferenceNode = inBetweenClonedNodes[inBetweenClonedNodes.size() - 1];
+        AddProgressiveMorpherScript(morpherNode, middleReferenceNode, morpherIndex);
+    }
+
+    // setting the progressive morpher weights last because each time a progressive morpher is
+    // added, it resets the weights of all the previous progressive morphers to an average of 100%
+    for (size_t i = 0; i < inBetweens.size(); ++i) {
+        const auto inBetween = inBetweens[i];
+        const auto clonedNode = inBetweenClonedNodes[i];
+
+        if (inBetween.HasAuthoredWeight()) {
+            float betweenWeight;
+            inBetween.GetWeight(&betweenWeight);
+
+            // Max's progressive morpher doesn't support negative weights, so need to remap them to
+            // a value from 0-49
+            if (hasNegativeWeightInBetween) {
+                // In Max, a progressive morpher can't have a weight of 0.0f. Weight of 0.0f means
+                // the original shape So, use a minimum threshold here to prevent that from
+                // happening.
+                betweenWeight = std::max((betweenWeight + 1.f) * 0.5f, WEIGHT_ANIMATION_THRESHOLD);
+            }
+
+            if (!SetProgressiveMorpherWeightScript(
+                    morpherNode, clonedNode, morpherIndex, betweenWeight)) {
+                MaxUsd::Log::Warn(
+                    L"Error running script to set progressive morpher weight index \"{}\" for Node "
+                    L"\"{}\"",
+                    std::to_wstring(morpherIndex),
+                    morpherNode->GetName());
+            }
+        }
+    }
+
+    // The weight of the original morpher shape has changed because progressive morphers were added.
+    // Pass the node used for the original morpher shape so that the weight can be adjusted back to
+    // 100%
+    if (!SetProgressiveMorpherWeightScript(morpherNode, originalClonedNode, morpherIndex, 1.f)) {
+        MaxUsd::Log::Warn(
+            L"Error running script to set progressive morpher full weight index \"{}\" for Node "
+            L"\"{}\"",
+            std::to_wstring(morpherIndex),
+            morpherNode->GetName());
+    }
+
+    if (hasNegativeWeightInBetween) {
+        // Make sure that the middle reference added for the negative inbetweens has a weight of 50%
+        const auto middleReferenceNode = inBetweenClonedNodes[inBetweenClonedNodes.size() - 1];
+        if (!SetProgressiveMorpherWeightScript(
+                morpherNode, middleReferenceNode, morpherIndex, 0.5f)) {
+            MaxUsd::Log::Warn(
+                L"Error running script to set progressive middle morpher weight index \"{}\" for "
+                L"Node \"{}\"",
+                std::to_wstring(morpherIndex),
+                morpherNode->GetName());
+        }
+    }
+
+    return true;
+}
+
+bool MaxUsdTranslatorMorpher::AddMorpherTargetScript(
+    INode* maxNode,
+    INode* clonedNode,
+    size_t morpherIndex)
+{
+    static const TSTR buildMorphTargetScript = LR"(
+		fn buildMorphTarget originalNodeHandle targetNodeHandle idx = (
+			local success = false
+
+			local originalNode = maxOps.getNodeByHandle originalNodeHandle
+			local targetNode = maxOps.getNodeByHandle targetNodeHandle
+
+			-- This fixes a bug in Max 2022 where we can't update the mesh offsets without it
+			if classof targetNode != Editable_Poly do convertToPoly targetNode
+
+			modi = (getModifierByClass originalNode Morpher)
+
+			-- This fixes a bug in Max 2022 where the nodes wouldn't be added
+			modi.Autoload_of_targets = 1
+			if iskindof modi Modifier and IsValidMorpherMod modi do
+			(
+				success = WM3_MC_BuildFromNode modi idx targetNode
+				if success do
+				(
+					WM3_SetProgressiveMorphTension modi idx 0.0
+				)
+			)
+
+			-- Revert the fix above, otherwise morphers wouldn't disappear when we delete the duplicated nodes
+			modi.Autoload_of_targets = 0
+			return success
+		)
+		buildMorphTarget )";
+
+    if (!maxNode || !clonedNode) {
+        return false;
+    }
+
+    FPValue            rvalue;
+    std::wstringstream ss;
+    ss << getModifierByClassScript << buildMorphTargetScript << maxNode->GetHandle() << L" ";
+    ss << clonedNode->GetHandle() << L" " << (morpherIndex + 1) << L'\n' << L'\0';
+    return ExecuteMAXScriptScript(
+               ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+        && rvalue.type == TYPE_BOOL && rvalue.b;
+}
+
+bool MaxUsdTranslatorMorpher::AddProgressiveMorpherScript(
+    INode* maxNode,
+    INode* clonedNode,
+    size_t morpherIndex)
+{
+    static const TSTR addProgressiveMorpherScript = LR"(
+		fn addProgressiveMorpher originalNodeHandle targetNodeHandle idx = (
+			local success = false
+
+			local originalNode = maxOps.getNodeByHandle originalNodeHandle
+			local targetNode = maxOps.getNodeByHandle targetNodeHandle
+
+			-- This fixes a bug in Max 2022 where we can't update the mesh offsets without it
+			if classof targetNode != Editable_Poly do convertToPoly targetNode
+
+			modi = (getModifierByClass originalNode Morpher)
+
+			-- This fixes a bug in Max 2022 where the nodes wouldn't be added
+			modi.Autoload_of_targets = 1
+			if iskindof modi Modifier and IsValidMorpherMod modi do
+			(
+				success = WM3_AddProgressiveMorphNode modi idx targetNode
+			)
+
+			-- Revert the fix above, otherwise morphers wouldn't disappear when we delete the duplicated nodes
+			modi.Autoload_of_targets = 0
+			return success
+		)
+		addProgressiveMorpher )";
+
+    if (!maxNode || !clonedNode) {
+        return false;
+    }
+
+    FPValue            rvalue;
+    std::wstringstream ss;
+    ss << getModifierByClassScript << addProgressiveMorpherScript << maxNode->GetHandle() << L" ";
+    ss << clonedNode->GetHandle() << L" " << (morpherIndex + 1) << L'\n' << L'\0';
+    return ExecuteMAXScriptScript(
+               ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+        && rvalue.type == TYPE_BOOL && rvalue.b;
+}
+
+bool MaxUsdTranslatorMorpher::SetProgressiveMorpherWeightScript(
+    INode* maxNode,
+    INode* clonedNode,
+    size_t morpherIndex,
+    float  weight)
+{
+    static const TSTR setProgressiveWeightMorpherScript = LR"(
+		fn setProgressiveWeightMorpherScript originalNodeHandle targetNodeHandle idx weight = (
+			local success = false
+
+			local originalNode = maxOps.getNodeByHandle originalNodeHandle
+			local targetNode = maxOps.getNodeByHandle targetNodeHandle
+
+			modi = (getModifierByClass originalNode Morpher)
+
+			if iskindof modi Modifier and IsValidMorpherMod modi do
+			(
+				success = WM3_SetProgressiveMorphWeight modi idx targetNode weight
+			)
+
+			return success
+		)
+		setProgressiveWeightMorpherScript )";
+
+    if (!maxNode || !clonedNode) {
+        return false;
+    }
+
+    FPValue            rvalue;
+    std::wstringstream ss;
+    ss << getModifierByClassScript << setProgressiveWeightMorpherScript << maxNode->GetHandle()
+       << L" ";
+    ss << clonedNode->GetHandle() << L" " << (morpherIndex + 1) << L" ";
+    // maxscript requires a float for the weight, so need to have the decimal point even when its 0
+    ss << (weight != 0.0 ? std::to_wstring(weight * 100.f) : std::to_wstring(0.0)) << L'\n'
+       << L'\0';
+
+    return ExecuteMAXScriptScript(
+               ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+        && rvalue.type == TYPE_BOOL && rvalue.b;
+}
+
+void MaxUsdTranslatorMorpher::ApplyDeltasOffset(
+    Object*             originalScaledObject,
+    Object*             clonedScaledObject,
+    const VtIntArray&   blendShapePointIndices,
+    const VtVec3fArray& blendShapeDeltaPoints,
+    float               scaleFactor,
+    bool                revertOffset)
+{
+    if (!originalScaledObject || !clonedScaledObject) {
+        return;
+    }
+
+    const auto numPoints = blendShapePointIndices.size();
+    if (numPoints != blendShapeDeltaPoints.size()) {
+        return;
+    }
+
+    for (size_t i = 0; i < numPoints; ++i) {
+        const int pointIdx = blendShapePointIndices[i];
+
+        if (revertOffset) {
+            clonedScaledObject->SetPoint(pointIdx, originalScaledObject->GetPoint(pointIdx));
+        } else {
+            const auto pointPos = originalScaledObject->GetPoint(pointIdx);
+            const auto deltaPoint = blendShapeDeltaPoints[i] * scaleFactor;
+            clonedScaledObject->SetPoint(
+                pointIdx,
+                Point3(
+                    pointPos.x + deltaPoint[0],
+                    pointPos.y + deltaPoint[1],
+                    pointPos.z + deltaPoint[2]));
+        }
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorMorpher.h b/src/MaxUsd/Translators/TranslatorMorpher.h
new file mode 100644
index 0000000..b2d6ee0
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorMorpher.h
@@ -0,0 +1,152 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+class UsdSkelAnimQuery;
+class UsdSkelBlendShape;
+class UsdSkelSkinningQuery;
+
+/// \brief Provides helper functions for reading UsdSkel BlendShapes related prims.
+struct MaxUsdTranslatorMorpher
+{
+    /**
+     * \brief Import a UsdSkelBlendShape schema as a corresponding 3ds Max morpher modifier.
+     * \param prim The UsdSkelBlendShape prim to import
+     * \param maxNode The 3ds Max node to import the UsdSkelBlendShape prim to
+     * \param context The context for the import job
+     * \return true if the 3ds Max morpher modifier was properly created and imported
+     */
+    MaxUSDAPI static bool
+    Read(const UsdPrim& prim, INode* maxNode, const MaxUsdReadJobContext& context);
+
+    /**
+     * \brief Configure the animation of the morpher weights based on the skinning and animation prims
+     * \param skinningQuery The UsdSkelSkinningQuery for the skinning prim
+     * \param animQuery The UsdSkelAnimQuery for the animation prim
+     * \param maxNode The 3ds Max node that holds the Morpher that will have the animation configured
+     * \param context The context for the import job
+     * \return true if the animation was properly configured
+     */
+    MaxUSDAPI static bool ConfigureMorpherAnimations(
+        const UsdSkelSkinningQuery& skinningQuery,
+        const UsdSkelAnimQuery&     animQuery,
+        INode*                      maxNode,
+        const MaxUsdReadJobContext& context);
+
+private:
+    /**
+     * \brief Helper function to clone a max node and removes the morpher modifier from the cloned node
+     * \param morpherNode The node to be cloned
+     * \return The new cloned node
+     */
+    static INode* CloneMorpherNode(INode* morpherNode);
+
+    /**
+     * \brief Helper function to add new morph targets to a morpher modifier based on the the blendShapeTargets passed.
+     * \param morpherNode The node that has a morpher modifier
+     * \param context The context for the import job
+     * \param blendShapeTargets The list of blendShapeTargets to converted into new morpher channels
+     * \return true if the morpher channels were properly added to the morpher modifier
+     */
+    static bool AddMorphTargets(
+        INode*                      morpherNode,
+        const MaxUsdReadJobContext& context,
+        const SdfPathVector&        blendShapeTargets);
+
+    /**
+     * \brief Helper function to add new progressive morph targets
+     * \param morpherNode The node that has a morpher modifier
+     * \param originalScaledObject The original object that will be used to compare the new in betweens
+     * \param originalClonedNode the node used to create the original morpher, it will be used to adjust the weights if necessary
+     * \param blendShapePrim The UsdSkelBlendShape that also has the in-betweens
+     * \param blendShapePointIndices The array of indices that will be offset on the mesh
+     * \param morpherIndex The index of the morpher channel that will have the in-betweens added to it
+     * \param inBetweenClonedNodes Array to cache temporary nodes used for the in-betweens, to be deleted after the process
+     * \return true if the in-betweens were properly added to the morpher modifier; false otherwise
+     */
+    static bool AddAllInBetweens(
+        INode*                   morpherNode,
+        Object*                  originalScaledObject,
+        INode*                   originalClonedNode,
+        const UsdSkelBlendShape& blendShapePrim,
+        const VtIntArray&        blendShapePointIndices,
+        size_t                   morpherIndex,
+        std::vector<INode*>&     inBetweenClonedNodes);
+
+    // ============================================================================
+    // Helper functions to call maxscript functions by passing c++ parameters.
+    // The morpher API is only available through maxscript until 3ds Max 2025.
+    // So, it's necessary to have several methods to configure the morpher modifier
+    // ============================================================================
+
+    /**
+     * \brief Helper function to add a buid morph targets based on the cloned node given as parameters modifier to a
+     * node.
+     * \param maxNode The node to that will have a new morpher channel added to it's morpher modifier
+     * \param clonedNode The node that will be used to build the new morpher channel to be added to the maxNode
+     * \param morpherIndex The index of the morpher channel to be added to the maxNode
+     * \return true if the morpher channel was properly added to the maxNode
+     */
+    static bool AddMorpherTargetScript(INode* maxNode, INode* clonedNode, size_t morpherIndex);
+
+    /**
+     * \brief Helper function to add a progressive morpher based on a node to a an already built morpher channel.
+     * \param maxNode The node that has a morpher modifier that will have a progressive morpher added to it
+     * \param clonedNode The node that will be used to build the progressive morpher to be added to the morpher
+     * \param morpherIndex The index of the morpher channel that will have the progressive morpher added to it
+     * \return true if the progressive morpher was properly added to the morpher channel
+     */
+    static bool AddProgressiveMorpherScript(INode* maxNode, INode* clonedNode, size_t morpherIndex);
+
+    /**
+     *
+     * \brief Helper function to set the weight of a morpher channel.
+     * \param maxNode The node that has a morpher modifier
+     * \param weight The new weight of the morpher channel
+     * \param morpherIndex The index of the morpher channel that will have the weight changed
+     * \return true if the weight of the morpher channel was properly changed
+     */
+    static bool SetProgressiveMorpherWeightScript(
+        INode* maxNode,
+        INode* clonedNode,
+        size_t morpherIndex,
+        float  weight);
+
+    /**
+     * \brief Helper function to apply deltas offset to a max object.
+     * \param originalScaledObject The original scaled object that will be used to get the initial position of the
+     * vertices
+     * \param clonedScaledObject The cloned object that will have the deltas applied to it
+     * \param blendShapePointIndices The array of indices that will be offset on the mesh
+     * \param blendShapeDeltaPoints The array of blendShapeDeltaPoints to converted into new morpher channels
+     * \param scaleFactor scale factor to be applied to the vertices positions to account for usd's units difference
+     * \param revertOffset If true, the deltas will be reverted instead of applied
+     */
+    static void ApplyDeltasOffset(
+        Object*             originalScaledObject,
+        Object*             clonedScaledObject,
+        const VtIntArray&   blendShapePointIndices,
+        const VtVec3fArray& blendShapeDeltaPoints,
+        float               scaleFactor,
+        bool                revertOffset = false);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorPrim.cpp b/src/MaxUsd/Translators/TranslatorPrim.cpp
new file mode 100644
index 0000000..8784b0b
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorPrim.cpp
@@ -0,0 +1,215 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorPrim.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Utilities/MetaDataUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usdGeom/imageable.h>
+
+#include <IMetaData.h>
+#include <inode.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+INode* MaxUsdTranslatorPrim::CreateAndRegisterNode(
+    const UsdPrim&        prim,
+    Object*               object,
+    const TfToken&        name,
+    MaxUsdReadJobContext& context,
+    bool                  attachToParent)
+{
+    WStr   nodeName = MaxUsd::UsdStringToMaxString(name.GetString());
+    INode* createdNode = GetCOREInterface17()->CreateObjectNode(object, nodeName);
+
+    // add node to read job context for later reference
+    context.RegisterNewMaxRefTargetHandle(prim.GetPath(), createdNode);
+    MaxUsd::Log::Info(
+        "Importing prim {0} to node {1}.", prim.GetPath().GetString(), name.GetString());
+
+    if (attachToParent) {
+        auto parentNode = context.GetMaxNode(prim.GetPath().GetParentPath(), false);
+        if (parentNode) {
+            parentNode->AttachChild(createdNode);
+        }
+    }
+    return createdNode;
+}
+
+void MaxUsdTranslatorPrim::Read(const UsdPrim& prim, INode* maxNode, MaxUsdReadJobContext& context)
+{
+    const auto timeConfig = context.GetArgs().GetResolvedTimeConfig(prim.GetStage());
+    const auto timeCode = timeConfig.GetStartTimeCode();
+
+    // If the mesh is set to Guide in USD, the mesh imported will be set to non-renderable.
+    UsdGeomImageable imageablePrim(prim);
+    TfToken          purpose;
+    imageablePrim.GetPurposeAttr().Get(&purpose, timeCode);
+    if (purpose == UsdGeomTokens->guide) {
+        maxNode->SetRenderable(false);
+    }
+
+    TfToken     visibility { UsdGeomTokens->invisible };
+    std::string primPath = prim.GetPath().GetString();
+    auto        parentPrim = prim.GetParent();
+    if (parentPrim && !parentPrim.IsPseudoRoot()) {
+        std::string parentPrimPath = parentPrim.GetPath().GetString();
+        auto        parentNode = context.GetMaxNode(parentPrim.GetPath(), false);
+        if (parentNode && parentNode->IsHidden()) {
+            visibility = UsdGeomTokens->invisible;
+        } else {
+            visibility = imageablePrim.ComputeVisibility(timeCode);
+        }
+    } else {
+        visibility = imageablePrim.ComputeVisibility(timeCode);
+    }
+    // Set hide on node according to computed visibility
+    maxNode->Hide(visibility == UsdGeomTokens->invisible);
+
+    // meta data
+    ReadMaxCustomAttributes(prim, maxNode, context);
+}
+
+void MaxUsdTranslatorPrim::ReadMaxCustomAttributes(
+    const UsdPrim&        prim,
+    INode*                maxNode,
+    MaxUsdReadJobContext& context)
+{
+    IMetaDataManager* maxMetaDataManager = IMetaDataManager::GetInstance();
+
+    // contains the usd metadata names for defining our CustomAttributes and also the value to set
+    // for each parameter
+    std::vector<std::pair<MaxUsd::MetaData::UsdMetaDataType, MaxUsd::MetaData::ParameterValue>>
+        customAttributesToAddAndUpdate;
+
+    const auto& metaDataIncludes = context.GetArgs().GetMetaData();
+    auto        isMetaDataTypeIncluded
+        = [&metaDataIncludes](MaxUsd::MetaData::UsdMetaDataType mdType) -> bool {
+        return std::find(
+                   metaDataIncludes.cbegin(), metaDataIncludes.cend(), static_cast<int>(mdType))
+            != metaDataIncludes.end();
+    };
+
+    const auto timeConfig = context.GetArgs().GetResolvedTimeConfig(prim.GetStage());
+
+    // usd purpose
+    UsdAttribute purposeAttr = UsdGeomImageable(prim).GetPurposeAttr();
+    if (isMetaDataTypeIncluded(MaxUsd::MetaData::UsdMetaDataType::Purpose)
+        && purposeAttr.IsDefined() && purposeAttr.HasAuthoredValue()) {
+        TfToken purpose;
+        purposeAttr.Get(&purpose, timeConfig.GetStartTimeCode());
+        std::string purposeStr = purpose.GetString();
+
+        if (purpose != UsdGeomTokens->default_ && !purpose.IsEmpty()) {
+            std::wstring purposeWStr = MaxUsd::UsdStringToMaxString(purposeStr).data();
+            MaxUsd::MetaData::ParameterValue purposeVal;
+            purposeVal.strValue = purposeWStr;
+            customAttributesToAddAndUpdate.push_back(
+                std::make_pair(MaxUsd::MetaData::Purpose, purposeVal));
+        }
+    }
+
+    // usd kind
+    if (isMetaDataTypeIncluded(MaxUsd::MetaData::UsdMetaDataType::Kind)
+        && prim.HasMetadata(MaxUsdMetadataTokens->kind)) {
+        TfToken     kind;
+        bool        canReadKind = UsdModelAPI(prim).GetKind(&kind);
+        std::string kindStr = kind.GetString();
+        if (canReadKind && !kind.IsEmpty()) {
+            std::wstring kindWStr = MaxUsd::UsdStringToMaxString(kindStr).data();
+            MaxUsd::MetaData::ParameterValue kindVal;
+            kindVal.strValue = kindWStr;
+            customAttributesToAddAndUpdate.push_back(
+                std::make_pair(MaxUsd::MetaData::Kind, kindVal));
+        }
+    }
+
+    // usd hidden
+    if (isMetaDataTypeIncluded(MaxUsd::MetaData::UsdMetaDataType::Hidden)
+        && prim.HasMetadata(MaxUsdMetadataTokens->hidden)) {
+        bool usdHidden = prim.IsHidden();
+        if (usdHidden) {
+            MaxUsd::MetaData::ParameterValue hiddenVal;
+            hiddenVal.boolValue = usdHidden;
+            customAttributesToAddAndUpdate.push_back(
+                std::make_pair(MaxUsd::MetaData::Hidden, hiddenVal));
+        }
+    }
+
+    if (customAttributesToAddAndUpdate.empty()) {
+        // no metadata to add so exit early
+        return;
+    }
+
+    // create definition for CustAttrib to be assigned to this BaseObject
+    std::vector<MaxUsd::MetaData::UsdMetaDataType> customAttributesToCreate;
+    std::for_each(
+        customAttributesToAddAndUpdate.begin(),
+        customAttributesToAddAndUpdate.end(),
+        [&customAttributesToCreate](auto& entry) {
+            customAttributesToCreate.push_back(entry.first);
+        });
+    IMetaDataManager::MetaDataID usdBuiltInMetaData
+        = MaxUsd::MetaData::GetOrDefineUsdBuiltInMetaData(customAttributesToCreate);
+    if (usdBuiltInMetaData == EmptyMetaDataID) {
+        // creating scripted custom attributes failed
+        return;
+    }
+
+    CustAttrib* usdCustomAttribute = maxMetaDataManager->AddMetaDataToAnimatable(
+        usdBuiltInMetaData, *(maxNode->GetObjectRef()));
+    if (usdCustomAttribute == nullptr) {
+        MaxUsd::Log::Error(
+            L"Could not add USD Metadata to object: {0} ",
+            std::wstring(maxNode->GetObjectRef()->GetObjectName(false)));
+        return;
+    }
+
+    IParamBlock2* usdCustomAttributePb = usdCustomAttribute->GetParamBlock(0);
+    if (usdCustomAttributePb == nullptr) {
+        MaxUsd::Log::Error(
+            L"Could not get ParamBlock2 for IMetaDataManager/CustAttrib for object: {0} ",
+            std::wstring(maxNode->GetObjectRef()->GetObjectName(false)));
+        return;
+    }
+
+    const auto startTimeValue
+        = MaxUsd::GetMaxTimeValueFromUsdTimeCode(prim.GetStage(), timeConfig.GetStartTimeCode());
+    for (const auto& prop : customAttributesToAddAndUpdate) {
+        auto def = MaxUsd::MetaData::GetUsdMetaDataDef(prop.first);
+        auto val = prop.second;
+        switch (def.usdMetaDataParamDef.m_dataType) {
+        case TYPE_STRING:
+            usdCustomAttributePb->SetValueByName(
+                def.usdMetaDataKey, val.strValue.c_str(), startTimeValue);
+            break;
+        case TYPE_BOOL:
+            usdCustomAttributePb->SetValueByName(def.usdMetaDataKey, val.boolValue, startTimeValue);
+            break;
+        case TYPE_INT:
+            usdCustomAttributePb->SetValueByName(def.usdMetaDataKey, val.intValue, startTimeValue);
+            break;
+        default:
+            // unhandled type that was not implemented
+            DbgAssert(_T("Unhandled customattribute data type"));
+            break;
+        }
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorPrim.h b/src/MaxUsd/Translators/TranslatorPrim.h
new file mode 100644
index 0000000..c674204
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorPrim.h
@@ -0,0 +1,62 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/usd/prim.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \brief Provides helper functions for reading UsdPrim.
+struct MaxUsdTranslatorPrim
+{
+    // Utility method to the create the 3ds Max node from an Object, to register the INode in the
+    // MaxUsdReadJobContext and attach the node to its parent in the 3ds Max scene tree
+    // \param prim The prim which generated the 3ds Max Object
+    // \param object The 3ds Max Object for which we want an INode created
+    // \param name The name to be given to the 3ds Max node
+    // \param context The current MaxUsdReadJobContext to register the 3ds Node to
+    // \param attachToParent Whether or not to attach the 3ds Max node to its parent, if any
+    MaxUSDAPI static INode* CreateAndRegisterNode(
+        const UsdPrim&        prim,
+        Object*               object,
+        const TfToken&        name,
+        MaxUsdReadJobContext& context,
+        bool                  attachToParent = true);
+
+    // Helper method to read UsdPrim
+    // Purpose, visibility state and 3ds Max custom attributes
+    // \param prim The prim associated to the 3ds Max Node
+    // \param maxNode The 3ds Max INode on which to applies attributes
+    // \param context The current MaxUsdReadJobContext to register the 3ds Node to
+    MaxUSDAPI static void Read(const UsdPrim& prim, INode* maxNode, MaxUsdReadJobContext& context);
+
+private:
+    // Helper method to read 3ds Max custom attributes (Purpose, Kind, Hidden) from the UsdPrim
+    // \param prim The prim associated to the 3ds Max Node
+    // \param maxNode The 3ds Max INode on which to applies attributes
+    // \param context The current MaxUsdReadJobContext to register the 3ds Node to
+    void static ReadMaxCustomAttributes(
+        const UsdPrim&        prim,
+        INode*                maxNode,
+        MaxUsdReadJobContext& context);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorSkel.cpp b/src/MaxUsd/Translators/TranslatorSkel.cpp
new file mode 100644
index 0000000..e52ffff
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorSkel.cpp
@@ -0,0 +1,497 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorSkel.h"
+
+#include "TranslatorPrim.h"
+
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/metrics.h>
+#include <pxr/usd/usdGeom/xformCache.h>
+#include <pxr/usd/usdSkel/skeleton.h>
+#include <pxr/usd/usdSkel/skeletonQuery.h>
+#include <pxr/usd/usdSkel/skinningQuery.h>
+#include <pxr/usd/usdSkel/topology.h>
+#include <pxr/usd/usdSkel/utils.h>
+
+#include <GetCOREInterface.h>
+#include <inode.h>
+#include <iskin.h>
+#include <modstack.h>
+#include <simpobj.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+bool MaxUsdTranslatorSkel::CreateJointHierarchy(
+    const UsdSkelSkeletonQuery& skelQuery,
+    INode*                      hierarchyRootNode,
+    MaxUsdReadJobContext&       context,
+    std::vector<INode*>&        joints)
+{
+    return CreateJointsNodes(skelQuery, hierarchyRootNode, context, joints)
+        && SetJointProperties(skelQuery, context, joints)
+        && CopyJointsAnimations(skelQuery, hierarchyRootNode, context, joints);
+}
+
+bool MaxUsdTranslatorSkel::GetJointsNodes(
+    const UsdSkelSkeletonQuery& skelQuery,
+    const MaxUsdReadJobContext& context,
+    std::vector<INode*>&        joints)
+{
+    auto jointsOrder = skelQuery.GetJointOrder();
+
+    joints.clear();
+    joints.reserve(jointsOrder.size());
+
+    for (const TfToken& joint : jointsOrder) {
+        const SdfPath jointPath = SdfPath(joint);
+        if (INode* jointNode = context.GetMaxNode(jointPath, false)) {
+            joints.push_back(jointNode);
+        }
+    }
+
+    return true;
+}
+
+bool MaxUsdTranslatorSkel::ConfigureSkinModifier(
+    const UsdSkelSkinningQuery& skinQuery,
+    INode*                      skinnedNode,
+    const MaxUsdReadJobContext& context,
+    std::vector<INode*>&        skinningJoints,
+    const VtMatrix4dArray&      bindTransforms)
+{
+    if (!skinnedNode) {
+        MaxUsd::Log::Error(
+            "Skel reader found Null Max node for skinned prim at path \"{}\" .",
+            skinQuery.GetPrim().GetPath().GetName());
+        return false;
+    }
+
+    if (skinningJoints.empty()) {
+        MaxUsd::Log::Warn(
+            "No joints bound to prim \"{}\". Skipping the creation of the SkinModifer.",
+            skinQuery.GetPrim().GetPath().GetName());
+        return false;
+    }
+
+    Modifier* skinMod = (Modifier*)CreateInstance(OSM_CLASS_ID, SKIN_CLASSID);
+    if (!skinMod) {
+        MaxUsd::Log::Error(
+            "Skel reader couldn't create a new skin modifier for prim \"{}\" .",
+            skinQuery.GetPrim().GetPath().GetName());
+        return false;
+    }
+
+    const auto skinnedObj = skinnedNode->GetObjectRef()->FindBaseObject();
+    GetCOREInterface12()->AddModifier(*skinnedNode, *skinMod);
+
+    ISkin*           iskin = static_cast<ISkin*>(skinMod->GetInterface(I_SKIN));
+    ISkinImportData* iskinImport
+        = static_cast<ISkinImportData*>(skinMod->GetInterface(I_SKINIMPORTDATA));
+    if (!iskin || !iskinImport) {
+        MaxUsd::Log::Error(
+            "Failed to extract import interface for skin modifier on prim \"{}\" .",
+            skinQuery.GetPrim().GetPath().GetName());
+        return false;
+    }
+
+    const auto stage = context.GetStage();
+    const auto timeConfig = context.GetArgs().GetResolvedTimeConfig(stage);
+    const auto maxStartTime
+        = MaxUsd::GetMaxTimeValueFromUsdTimeCode(stage, timeConfig.GetStartTimeCode());
+
+    // Set skinned node bind transform
+    const auto numJoints = skinningJoints.size();
+    GfMatrix4d geomBindTransform = skinQuery.GetGeomBindTransform();
+    if (MaxUsd::IsStageUsingYUpAxis(context.GetStage())) {
+        MaxUsd::MathUtils::ModifyTransformYToZUp(geomBindTransform);
+    }
+
+    // evaluate the object to make sure the local mod data gets built
+    skinnedNode->EvalWorldState(maxStartTime);
+
+    Matrix3 skinNodeTm;
+    MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(skinNodeTm, MaxUsd::ToMax(geomBindTransform));
+    iskinImport->SetSkinTm(skinnedNode, skinNodeTm, skinNodeTm);
+
+    //  add bones to the skin modifier
+    for (size_t i = 0; i < numJoints; i++) {
+        const auto boneNode = skinningJoints[i];
+        if (!boneNode) {
+            continue;
+        }
+
+        if (i == numJoints - 1) {
+            iskinImport->AddBoneEx(boneNode, TRUE);
+        } else {
+            iskinImport->AddBoneEx(boneNode, FALSE);
+        }
+
+        auto jointTM = bindTransforms[i];
+        if (MaxUsd::IsStageUsingYUpAxis(context.GetStage())) {
+            MaxUsd::MathUtils::ModifyTransformYToZUp(jointTM);
+        }
+
+        Matrix3 boneNodeTm;
+        MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(boneNodeTm, MaxUsd::ToMax(jointTM));
+
+        iskinImport->SetBoneTm(boneNode, boneNodeTm, boneNodeTm);
+    }
+
+    if (const ISkinContextData* skinData = iskin->GetContextInterface(skinnedNode)) {
+        const auto numPoints = skinData->GetNumPoints();
+
+        VtIntArray   jointsIndicesArray;
+        VtFloatArray jointsWeightsArray;
+        if (skinQuery.ComputeVaryingJointInfluences(
+                numPoints, &jointsIndicesArray, &jointsWeightsArray)) {
+            const auto numOfInfluences = skinQuery.GetNumInfluencesPerComponent();
+
+            for (int pt = 0; pt < numPoints; ++pt) {
+                // using arrays for ease of use, needs to be converted to Max's Tab later
+                std::vector<float>  weights;
+                std::vector<INode*> bones;
+                for (int j = 0; j < numOfInfluences; ++j) {
+                    const int index = pt * numOfInfluences + j;
+                    if (index >= jointsIndicesArray.size()) {
+                        break;
+                    }
+
+                    const int boneIndex = jointsIndicesArray[index];
+                    if (boneIndex >= 0
+                        && static_cast<unsigned int>(boneIndex) < skinningJoints.size()) {
+                        const float weight = jointsWeightsArray[index];
+                        INode*      bone = skinningJoints[boneIndex];
+
+                        if (weight != 0.0f && bone) {
+                            weights.emplace_back(weight);
+                            bones.emplace_back(bone);
+                        }
+                    }
+                }
+
+                Tab<float>  weightsTab;
+                Tab<INode*> bonesTab;
+                weightsTab.Append(static_cast<int>(weights.size()), weights.data());
+                bonesTab.Append(static_cast<int>(bones.size()), bones.data());
+                iskinImport->AddWeights(skinnedNode, pt, bonesTab, weightsTab);
+            }
+        }
+    }
+    skinnedNode->NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);
+    skinnedObj->NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);
+    skinMod->NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);
+
+    skinnedNode->EvalWorldState(maxStartTime);
+
+    return true;
+}
+
+bool MaxUsdTranslatorSkel::CreateJointsNodes(
+    const UsdSkelSkeletonQuery& skelQuery,
+    INode*                      skelContainer,
+    MaxUsdReadJobContext&       context,
+    std::vector<INode*>&        joints)
+{
+    const SdfPath& path = skelQuery.GetPrim().GetPath();
+    const SdfPath  containerPath = skelQuery.GetPrim().GetPath().GetParentPath();
+
+    const VtTokenArray jointTokens = skelQuery.GetJointOrder();
+    const size_t       numJoints = jointTokens.size();
+    joints.resize(numJoints);
+
+    auto&      topo = skelQuery.GetTopology();
+    const auto coreInterface = GetCOREInterface17();
+    for (size_t i = 0; i < numJoints; ++i) {
+        const SdfPath jointPath = SdfPath(jointTokens[i]);
+        if (!jointPath.IsPrimPath()) {
+            continue;
+        }
+
+        // can't use the Helper function to create and register node here because it would use the
+        // same prim
+        const auto boneObject = static_cast<Object*>(
+            coreInterface->CreateInstance(GEOMOBJECT_CLASS_ID, Class_ID(BONE_OBJ_CLASSID)));
+        const WStr nodeName = MaxUsd::UsdStringToMaxString(jointPath.GetElementString());
+        INode*     jointNode = coreInterface->CreateObjectNode(boneObject, nodeName);
+        context.RegisterNewMaxRefTargetHandle(jointPath, jointNode);
+        MaxUsd::Log::Info(
+            "Bone node created for skel {0} and joint {1} with name {2}.",
+            path.GetString(),
+            jointPath.GetString(),
+            jointPath.GetElementString());
+
+        const int parentId = topo.GetParent(i);
+        if (parentId >= 0 && parentId < joints.size()) {
+            if (INode* parentNode = joints[parentId]) {
+                parentNode->AttachChild(jointNode);
+            } else {
+                MaxUsd::Log::Warn(
+                    "Skeleton prim \"{0}\" has topology out of order. Parent joints should always "
+                    "come "
+                    "before children joints.",
+                    skelQuery.GetPrim().GetName().GetString());
+            }
+        } else {
+            // doesn't have a joint parent. we'll attach it to the skeleton container
+            if (skelContainer) {
+                skelContainer->AttachChild(jointNode);
+            }
+        }
+
+        joints[i] = jointNode;
+    }
+
+    return true;
+}
+
+bool MaxUsdTranslatorSkel::CopyJointsAnimations(
+    const UsdSkelSkeletonQuery& skelQuery,
+    INode*                      skelContainer,
+    const MaxUsdReadJobContext& context,
+    const std::vector<INode*>&  joints)
+{
+    if (joints.empty()) {
+        return false;
+    }
+
+    const auto   stage = context.GetStage();
+    const double timeCodePerSec = stage->GetTimeCodesPerSecond();
+
+    // TODO: this is temporary until we add the sampling rate option to the import UI
+    constexpr double samplingRate = 1.0;
+
+    std::vector<double> usdTimeCodes;
+    const auto          timeConfig = context.GetArgs().GetResolvedTimeConfig(stage);
+    const double        startTimeCode = timeConfig.GetStartTimeCode();
+    const double        endTimeCode = timeConfig.GetEndTimeCode();
+    usdTimeCodes.reserve(
+        static_cast<::size_t>(std::ceil((endTimeCode - startTimeCode) * timeCodePerSec)));
+    for (double timeSample = startTimeCode; timeSample <= endTimeCode;) {
+        usdTimeCodes.emplace_back(timeSample);
+        timeSample += 1.0 / samplingRate;
+    }
+
+    // There's a bug in 3ds Max where the animation key is not created if the first time being
+    // animated is 0. To go around that, have the time 0 being set later.
+    if (startTimeCode == 0.0) {
+        std::swap(*usdTimeCodes.begin(), *(usdTimeCodes.end() - 1));
+    }
+
+    // we aren't creating a node for the skeleton prim, so we need to cache any transform
+    // applied to that specific prim we case we need to use it later on
+    std::vector<GfMatrix4d>            skelLocalXforms(usdTimeCodes.size());
+    const UsdGeomXformable::XformQuery xfQuery(skelQuery.GetSkeleton());
+    for (size_t i = 0; i < usdTimeCodes.size(); ++i) {
+        if (!xfQuery.GetLocalTransformation(&skelLocalXforms[i], usdTimeCodes[i])) {
+            skelLocalXforms[i].SetIdentity();
+        }
+    }
+
+    const auto& topo = skelQuery.GetTopology();
+
+    // scope to disable auto key to prevent the creation of a "default" animated key
+    {
+        UsdGeomXformCache xformComputeCache;
+
+        // only set keyframes if there is animation
+        if (usdTimeCodes.size() > 1) {
+            AnimateOn();
+        }
+
+        for (size_t i = 0; i < usdTimeCodes.size(); ++i) {
+            VtMatrix4dArray xforms;
+            const auto      maxTimeValue
+                = MaxUsd::GetMaxTimeValueFromUsdTimeCode(stage, usdTimeCodes[i]);
+            xformComputeCache.SetTime(usdTimeCodes[i]);
+            if (!skelQuery.ComputeJointWorldTransforms(&xforms, &xformComputeCache)) {
+                MaxUsd::Log::Error(
+                    "Failed to calculate Joint transforms for Skeleton prim \"{}\" at USD timecode "
+                    "{}",
+                    skelQuery.GetPrim().GetName().GetString(),
+                    usdTimeCodes[i]);
+                return false;
+            }
+
+            for (size_t jointIdx = 0; jointIdx < joints.size(); ++jointIdx) {
+                GfMatrix4d jointTransform = xforms[jointIdx];
+
+                // if the joint has no parent, then we need to apply the skel prim transform
+                if (topo.GetParent(jointIdx) < 0) {
+                    jointTransform *= skelLocalXforms[i];
+                }
+
+                if (MaxUsd::IsStageUsingYUpAxis(context.GetStage())) {
+                    MaxUsd::MathUtils::ModifyTransformYToZUp(jointTransform);
+                }
+
+                Matrix3 maxMatrix;
+                MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(
+                    maxMatrix, MaxUsd::ToMax(jointTransform));
+                joints[jointIdx]->SetNodeTM(maxTimeValue, maxMatrix);
+            }
+
+            for (size_t jointIdx = 0; jointIdx < joints.size(); ++jointIdx) {
+                joints[jointIdx]->ResetBoneStretch(maxTimeValue);
+            }
+        }
+
+        if (usdTimeCodes.size() > 1) {
+            AnimateOff();
+        }
+    }
+
+    return true;
+}
+
+bool MaxUsdTranslatorSkel::SetJointProperties(
+    const UsdSkelSkeletonQuery& skelQuery,
+    const MaxUsdReadJobContext& context,
+    const std::vector<INode*>&  joints)
+{
+    VtMatrix4dArray bindTransforms;
+    skelQuery.GetSkeleton().GetBindTransformsAttr().Get(&bindTransforms);
+
+    if (bindTransforms.empty()) {
+        return false;
+    }
+
+    const auto stage = context.GetStage();
+    const auto timeConfig = context.GetArgs().GetResolvedTimeConfig(stage);
+    const auto maxStartTime
+        = MaxUsd::GetMaxTimeValueFromUsdTimeCode(stage, timeConfig.GetStartTimeCode());
+    const float rescaleFactor = static_cast<float>(MaxUsd::GetUsdToMaxScaleFactor(stage));
+
+    const size_t numJoints = joints.size();
+
+    // First, find where the first child bone is, for each bone.
+    // This will be used to later figure out the bone's direction.
+    std::map<int, pxr::GfVec3d> firstChildPivots;
+    const auto                  topo = skelQuery.GetTopology();
+    for (size_t i = 0; i < numJoints; ++i) {
+        const int  parent = topo.GetParent(i);
+        const auto it = firstChildPivots.find(parent);
+        if (it != firstChildPivots.end()) {
+            continue;
+        }
+        const GfVec3d pivot = bindTransforms[i].ExtractTranslation();
+        firstChildPivots.insert({ parent, pivot });
+    }
+
+    /// Return the index of the basis of mat that is best aligned with dir.
+    /// "mat" must be orthogonal.
+    auto findBestAlignedBasis = [](const GfMatrix4d& mat, const GfVec3d& dir) {
+        const float pi4 = static_cast<float>(M_PI) / 4.0f;
+        for (int i = 0; i < 2; ++i) {
+            // If the transform is orthogonal, the best aligned axis
+            // has an absolute dot product greater than PI/4.
+            if (std::abs(GfDot(mat.GetRow3(i), dir)) > pi4) {
+                return i;
+            }
+        }
+        return 2;
+    };
+
+    // Default bone length.
+    const double defaultLength = 2.0;
+
+    for (size_t i = 0; i < numJoints; ++i) {
+        auto       length = defaultLength;
+        const auto node = joints[i];
+
+        node->SetBoneNodeOnOff(TRUE, 0);
+        node->SetBoneAutoAlign(TRUE);
+        node->SetBoneFreezeLen(TRUE);
+        node->SetBoneScaleType(BONE_SCALETYPE_NONE);
+        node->SetBoneAxisFlip(FALSE);
+        node->SetBoneAxis(BONE_AXIS_X);
+        node->ShowBone(0);
+
+        const GfVec3d pivot = bindTransforms[i].ExtractTranslation();
+
+        // 3dsMax assumes X aligned bones when it draws bones, but bones can
+        // be aligned differently (for example, coming from maya). We try to figure out
+        // the alignment for each bone, and adjust the object accordingly.
+
+        // X=0,Y=1,Z=2
+        int axis = 0;
+
+        // Figure out the bone's direction (toward its child) and length.
+        auto it = firstChildPivots.find(static_cast<int>(i));
+        if (it != firstChildPivots.end()) {
+            auto boneDir = it->second - pivot;
+            axis = findBestAlignedBasis(bindTransforms[i], boneDir.GetNormalized());
+            length = (boneDir).GetLength();
+        }
+        // If no children, assume the same alignment as with the parent.
+        else {
+            const int parent = skelQuery.GetTopology().GetParent(i);
+            if (parent >= 0 && static_cast<size_t>(parent) < numJoints) {
+                GfVec3d parentPivot = bindTransforms[parent].ExtractTranslation();
+                auto    boneDir = pivot - parentPivot;
+                axis = findBestAlignedBasis(bindTransforms[parent], boneDir.GetNormalized());
+            }
+        }
+
+        // Now we can offset the bone geometry to match the axis.
+        switch (axis) {
+        case 0:
+            node->SetObjOffsetRot(IdentQuat());
+            node->SetBoneAxis(BONE_AXIS_X);
+            break;
+        case 1:
+            node->SetObjOffsetRot(Quat(0.0, 0.0, 1.0, -1.0));
+            node->SetBoneAxis(BONE_AXIS_Y);
+            break;
+        case 2:
+            node->SetObjOffsetRot(Quat(0.0, 1.0, 0.0, 1.0));
+            node->SetBoneAxis(BONE_AXIS_Z);
+            break;
+        }
+
+        IParamBlock2* boneParams = (static_cast<SimpleObject2*>(node->GetObjectRef()))
+                                       ->GetParamBlockByID(boneobj_params);
+        // The length doesn't get rescaled when the node is resvaled VS units... width and height
+        // do.
+        boneParams->SetValue(boneobj_length, maxStartTime, (float)length * rescaleFactor);
+
+        // It doesnt look good if the width or height of the bone are bigger than the length
+        // of the bone. If it is the case, adjust them.
+        float    width;
+        float    height;
+        Interval inter;
+        boneParams->GetValue(boneobj_width, maxStartTime, width, inter);
+        boneParams->GetValue(boneobj_height, maxStartTime, height, inter);
+
+        if (length < width) {
+            boneParams->SetValue(boneobj_width, maxStartTime, (float)length);
+        }
+        if (length < height) {
+            boneParams->SetValue(boneobj_height, maxStartTime, (float)length);
+        }
+
+        // Use the default 3dsMax bone color.
+        node->SetWireColor(RGB(174, 186, 203));
+        // Bones should not render.
+        node->SetRenderable(FALSE);
+    }
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorSkel.h b/src/MaxUsd/Translators/TranslatorSkel.h
new file mode 100644
index 0000000..a3faedc
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorSkel.h
@@ -0,0 +1,109 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usdSkel/skeletonQuery.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+class UsdSkelSkeletonQuery;
+class UsdSkelSkinningQuery;
+
+/// \brief Provides helper functions for reading UsdSkel related prims.
+struct MaxUsdTranslatorSkel
+{
+    /** \brief Creates 3ds Max bone nodes based on the skel joints given as parameters.
+     * \param skelQuery reading interface for the usd skel information
+     * \param hierarchyRootNode parent node where the new joints will be children of
+     * \param context The current MaxUsdReadJobContext to register the 3ds Node to
+     * \param joints the created joints will be added to this vector
+     */
+    MaxUSDAPI static bool CreateJointHierarchy(
+        const UsdSkelSkeletonQuery& skelQuery,
+        INode*                      hierarchyRootNode,
+        MaxUsdReadJobContext&       context,
+        std::vector<INode*>&        joints);
+
+    /** \brief Gets the joints nodes that were created for the given skelQuery.
+     * \param skelQuery reading interface for the usd skel information
+     * \param context The current MaxUsdReadJobContext to register the 3ds Node to
+     * \param joints the created joints will be added to this vector
+     */
+    MaxUSDAPI static bool GetJointsNodes(
+        const UsdSkelSkeletonQuery& skelQuery,
+        const MaxUsdReadJobContext& context,
+        std::vector<INode*>&        joints);
+
+    /** \brief Configure the skin modifier on the given skinnedNode.
+     * \param skinQuery reading interface for the usd skel information
+     * \param skinnedNode the 3ds Max node to have a skin modifier applied to
+     * \param context The current MaxUsdReadJobContext
+     * \param skinningJoints the 3ds max bone nodes that will be used and added to the skih modifier
+     * \param bindTransforms Usd joints bind transforms
+     */
+    MaxUSDAPI static bool ConfigureSkinModifier(
+        const UsdSkelSkinningQuery& skinQuery,
+        INode*                      skinnedNode,
+        const MaxUsdReadJobContext& context,
+        std::vector<INode*>&        skinningJoints,
+        const VtMatrix4dArray&      bindTransforms);
+
+private:
+    /**
+     * \brief Internal helper method to created the 3ds Max bone nodes based on the skel joints given as parameters.
+     * \param skelQuery reading interface for the usd skel information
+     * \param skelContainer 3ds Max node that will have the newly created joints
+     * \param context The current MaxUsdReadJobContext to register the 3ds Node to
+     * \param joints array to hold a reference to all the newly created 3ds Max nodes
+     * \return true if it succeed creating the joints
+     */
+    static bool CreateJointsNodes(
+        const UsdSkelSkeletonQuery& skelQuery,
+        INode*                      skelContainer,
+        MaxUsdReadJobContext&       context,
+        std::vector<INode*>&        joints);
+
+    /**
+     * \brief Copy the animations from the usd skel to the joint max bones
+     * \param skelQuery reading interface for the usd skel information
+     * \param skelContainer 3ds Max node that will have the newly created joints
+     * \param context the current MaxUsdReadJobContext to register the 3ds Node to
+     * \param joints 3ds Max nodes that will receive the animations from the skelQuery
+     * \return true if it succeeded copying the animations from usd to the max joints; false otherwise
+     */
+    static bool CopyJointsAnimations(
+        const UsdSkelSkeletonQuery& skelQuery,
+        INode*                      skelContainer,
+        const MaxUsdReadJobContext& context,
+        const std::vector<INode*>&  joints);
+
+    /** \brief Helper function to set the joint properties on the given skinnedNode.
+     * Properties are size of the joints based on the distance from it's parents and the amount of
+     * children.
+     * \param skelQuery reading interface for the usd skel information
+     * \param context The current MaxUsdReadJobContext
+     * \param joints array of joints that will have the properties update.
+     */
+    static bool SetJointProperties(
+        const UsdSkelSkeletonQuery& skelQuery,
+        const MaxUsdReadJobContext& context,
+        const std::vector<INode*>&  joints);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorUtils.cpp b/src/MaxUsd/Translators/TranslatorUtils.cpp
new file mode 100644
index 0000000..ee6c096
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorUtils.cpp
@@ -0,0 +1,215 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorUtils.h"
+
+#include "TranslatorPrim.h"
+#include "TranslatorXformable.h"
+
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <istdplug.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+bool MaxUsdTranslatorUtil::CreateDummyHelperNode(
+    const UsdPrim&        usdPrim,
+    const TfToken&        name,
+    MaxUsdReadJobContext& jobCtx)
+{
+    HelperObject* pointHelperObj = static_cast<HelperObject*>(
+        GetCOREInterface()->CreateInstance(HELPER_CLASS_ID, Class_ID(POINTHELP_CLASS_ID, 0)));
+    if (!pointHelperObj) {
+        MaxUsd::Log::Warn(
+            "Unable to create point helper object for '{0}'. Skipping node creation.",
+            usdPrim.GetName().GetString());
+        return false;
+    }
+
+    IParamBlock2* pb2 = pointHelperObj->GetParamBlockByID(0);
+    if (!pb2) {
+        MaxUsd::Log::Warn(
+            "Malformed point helper object for '{0}'. Skipping node creation.",
+            usdPrim.GetName().GetString());
+        return false;
+    }
+    pb2->SetValue(pointobj_cross, 0, FALSE);
+
+    INode* createdNode
+        = MaxUsdTranslatorPrim::CreateAndRegisterNode(usdPrim, pointHelperObj, name, jobCtx);
+    MaxUsdTranslatorXformable::Read(usdPrim, createdNode, jobCtx);
+
+    return true;
+}
+
+// Get the usd attribute values for given time samples.
+template <class T>
+static bool GetValuesForTimeSamples(
+    const UsdAttribute&        usdAttr,
+    const std::vector<double>& timeSamples,
+    std::vector<T>&            values)
+{
+    size_t numTimeSamples = timeSamples.size();
+    values.resize(numTimeSamples);
+
+    for (size_t i = 0; i < numTimeSamples; ++i) {
+        const double timeSample = timeSamples[i];
+        T            attrValue;
+        if (!usdAttr.Get(&attrValue, timeSample)) {
+            return false;
+        }
+        values[i] = attrValue;
+    }
+    return true;
+}
+
+bool ReadAnimatedUsdAttribute(
+    const UsdAttribute&                                  usdAttr,
+    const MaxUsdTranslatorUtil::AttributeSetterFunction& func,
+    const MaxUsdReadJobContext&                          context)
+{
+    const auto       timeConfig = context.GetArgs().GetResolvedTimeConfig(context.GetStage());
+    const GfInterval timeInterval(timeConfig.GetStartTimeCode(), timeConfig.GetEndTimeCode());
+
+    // If this attribute isn't varying in the time interval,
+    // we can early out and just let it be imported as a single value
+    if (timeInterval.IsEmpty() || !usdAttr.IsValid() || !usdAttr.ValueMightBeTimeVarying()) {
+        return false;
+    }
+
+    bool singleTimeCode = timeInterval.GetMin() == timeInterval.GetMax();
+
+    // Get the list of time samples for the given time interval
+    // get timeSamples ONLY if we deal with an import frame range
+    std::vector<double> timeSamples;
+    if (!singleTimeCode) {
+        if (!usdAttr.GetTimeSamplesInInterval(timeInterval, &timeSamples)) {
+            return false;
+        }
+    }
+
+    // Edge cases are possible if the import is done inside or outside time samples
+    bool   firstTimeSampleIsAlsoDefault { false };
+    double defaultTimeSample {
+        0.0
+    }; // this value will be set only if firstTimeSampleIsAlsoDefault is true
+    {
+        double lower, upper;
+        bool   hasTimeSamples;
+        usdAttr.GetBracketingTimeSamples(timeInterval.GetMin(), &lower, &upper, &hasTimeSamples);
+
+        // if 'lower < upper', start importing within a sample of the USD animated range
+        // if 'lower == upper', importing outside the animated range or directly on a sample
+        if (lower <= upper) {
+            // the value at this time sample becomes the default value
+            firstTimeSampleIsAlsoDefault = true;
+            defaultTimeSample = timeInterval.GetMin();
+        }
+        if (timeSamples.empty() || timeSamples[0] != timeInterval.GetMin()) {
+            if (lower < upper) {
+                // if the import start time is between time samples
+                // the import start time must be keyed
+                timeSamples.insert(timeSamples.begin(), timeInterval.GetMin());
+            }
+        }
+    }
+    if (!timeSamples.empty() && timeSamples[timeSamples.size() - 1] != timeInterval.GetMax()) {
+        double lower, upper;
+        bool   hasTimeSamples;
+        usdAttr.GetBracketingTimeSamples(timeInterval.GetMax(), &lower, &upper, &hasTimeSamples);
+
+        if (lower < upper) {
+            // if the import end time is between time samples
+            // the import end time must be keyed
+            timeSamples.push_back(timeInterval.GetMax());
+        }
+    }
+
+    // properly set the default value on the attribute if needed
+    if (firstTimeSampleIsAlsoDefault) {
+        std::vector<VtValue> defaultValue;
+        if (!GetValuesForTimeSamples(usdAttr, { defaultTimeSample }, defaultValue)) {
+            return false;
+        }
+
+        if (!func(
+                defaultValue[0],
+                defaultTimeSample,
+                MaxUsd::GetMaxTimeValueFromUsdTimeCode(
+                    context.GetStage(), UsdTimeCode::Default()))) {
+            return false;
+        }
+    }
+
+    // if no keys need to be set, just exit successfully
+    // the default value
+    if (timeSamples.empty()) {
+        return true;
+    }
+
+    // There's a bug in 3ds Max where the animation key is not created if the first time being
+    // animated is 0. To go around that, have the time 0 being set later.
+    if (timeSamples[0] == 0.0) {
+        std::swap(*timeSamples.begin(), *(timeSamples.end() - 1));
+    }
+
+    // Retrieve values for all time samples.
+    std::vector<VtValue> values;
+    if (!GetValuesForTimeSamples(usdAttr, timeSamples, values)) {
+        return false;
+    }
+
+    AnimateOn();
+    size_t numTimeSamples = timeSamples.size();
+    for (size_t i = 0; i < numTimeSamples; ++i) {
+        if (!func(
+                values[i],
+                timeSamples[i],
+                MaxUsd::GetMaxTimeValueFromUsdTimeCode(context.GetStage(), timeSamples[i]))) {
+            AnimateOff();
+            return false;
+        }
+    }
+    AnimateOff();
+
+    return true;
+}
+
+bool MaxUsdTranslatorUtil::ReadUsdAttribute(
+    const UsdAttribute&            usdAttr,
+    const AttributeSetterFunction& func,
+    const MaxUsdReadJobContext&    context,
+    bool                           onlyWhenAuthored)
+{
+    if (!usdAttr.IsValid() || (onlyWhenAuthored && !usdAttr.IsAuthored())) {
+        return false;
+    }
+
+    if (ReadAnimatedUsdAttribute(usdAttr, func, context)) {
+        return true;
+    }
+
+    VtValue value;
+    if (!usdAttr.Get(&value, UsdTimeCode::EarliestTime())) {
+        return false;
+    }
+    return func(
+        value,
+        UsdTimeCode::EarliestTime(),
+        MaxUsd::GetMaxTimeValueFromUsdTimeCode(context.GetStage(), UsdTimeCode::EarliestTime()));
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/TranslatorUtils.h b/src/MaxUsd/Translators/TranslatorUtils.h
new file mode 100644
index 0000000..8dbb278
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorUtils.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <maxtypes.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class UsdPrim;
+
+/// \brief Provides helper functions for other readers/writers to use.
+struct MaxUsdTranslatorUtil
+{
+    // Creates a "dummy" helper node for the given prim
+    // \param usdPrim The prim translate to a helper
+    // \param name The name to assign this node
+    // \param jobCtx The current read job context
+    // \return True if the prim was properly translated to a helper, false otherwise
+    MaxUSDAPI static bool CreateDummyHelperNode(
+        const UsdPrim&        usdPrim,
+        const TfToken&        name,
+        MaxUsdReadJobContext& jobCtx);
+
+    // Attribute setter function signature for the ReadUsdAttribute helper
+    // \param value The USD value extracted from the USD attribute
+    // \param usdTimeCode The USD time code when the value was read
+    // \param timeValue The 3ds Max corresponding time value the value was read
+    typedef std::function<bool(const VtValue&, const UsdTimeCode&, const TimeValue&)>
+        AttributeSetterFunction;
+    // Read the value from a given USD attribute. The attribute, animated or not, is read on the
+    // desired import interval and is assigned using the specified setter function
+    // \param usdAttr The USD attribute to extract the value from
+    // \param func The setter function to call to set the extracted value to the node's parameter
+    // \param content The Read job Context associated to current import job (get the import interval to use)
+    // \param onlyWhenAuthored Read the attribute value only when authored in the USD prim (default true); this
+    //   can be useful if the setter function can set a parameter default value
+    MaxUSDAPI static bool ReadUsdAttribute(
+        const UsdAttribute&            usdAttr,
+        const AttributeSetterFunction& func,
+        const MaxUsdReadJobContext&    context,
+        bool                           onlyWhenAuthored = true);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorXformable.cpp b/src/MaxUsd/Translators/TranslatorXformable.cpp
new file mode 100644
index 0000000..c1d1385
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorXformable.cpp
@@ -0,0 +1,181 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslatorXformable.h"
+
+#include "TranslatorPrim.h"
+
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/metrics.h>
+#include <pxr/usd/usdGeom/xformCache.h>
+
+#include <inode.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+void MaxUsdTranslatorXformable::Read(
+    const UsdPrim&        prim,
+    INode*                maxNode,
+    MaxUsdReadJobContext& context,
+    const Matrix3&        correction)
+{
+    // == Read attrs ==
+    // Read parent class attrs
+    MaxUsdTranslatorPrim::Read(prim, maxNode, context);
+
+    if (!prim || !prim.IsA<UsdGeomXformable>()) {
+        return;
+    }
+
+    // We will do many computations of prim transforms below, a UsdGeomXformCache will allow us
+    // to avoid redoing the same computations multiple times for prims that share part of their
+    // transforms.
+    UsdGeomXformCache xformComputeCache;
+    const auto        timeConfig = context.GetArgs().GetResolvedTimeConfig(prim.GetStage());
+    const auto        startTimeCode = timeConfig.GetStartTimeCode();
+    xformComputeCache.SetTime(startTimeCode);
+    // transform
+    pxr::UsdGeomXformable xformPrim(prim);
+    pxr::GfMatrix4d       usdTransformMatrix = xformComputeCache.GetLocalToWorldTransform(prim);
+    if (MaxUsd::IsStageUsingYUpAxis(prim.GetStage())) {
+        MaxUsd::MathUtils::ModifyTransformYToZUp(usdTransformMatrix);
+    }
+    Matrix3 maxTransformMatrix;
+    MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(
+        maxTransformMatrix, MaxUsd::ToMax(usdTransformMatrix));
+
+    // apply correction
+    maxTransformMatrix = correction * maxTransformMatrix;
+
+    Matrix3 pivotMatrix = Matrix3::Identity;
+
+    // Find the pivot if any.
+    // We only consider simple pivots, more specialized pivots like in Maya are not imported as
+    // such (scalePivot, rotatePivot, etc.).
+    // Note that because translation matrices are commutative, we don't care if there are other
+    // transform ops before / after the pivot translation.
+    bool                             pivotFound = false;
+    bool                             pivotInverseFound = false;
+    bool                             resetsXformStack = false;
+    std::vector<pxr::UsdGeomXformOp> xformops = xformPrim.GetOrderedXformOps(&resetsXformStack);
+    bool                             pivotIsIdentity = false;
+    const auto                       pivotToken = pxr::TfToken("xformOp:translate:pivot");
+    const auto pivotInverseToken = pxr::TfToken("!invert!xformOp:translate:pivot");
+    for (size_t i = 0; i < xformops.size(); i++) {
+        const pxr::UsdGeomXformOp& xformop = xformops[i];
+        if (xformop.GetOpName() == pivotToken) {
+            pivotFound = true;
+            auto pivotXform = xformop.GetOpTransform(startTimeCode);
+            MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(pivotMatrix, MaxUsd::ToMax(pivotXform));
+            pivotIsIdentity = MaxUsd::MathUtils::IsIdentity(pivotMatrix);
+
+            std::vector<double> usdSamples;
+            xformop.GetTimeSamples(&usdSamples);
+            if (timeConfig.IsAnimated() && usdSamples.size() > 1) {
+                MaxUsd::Log::Warn(
+                    "Prim '{0}' has an animated pivot transform, this operation is not "
+                    "supported in 3ds Max",
+                    prim.GetName().GetString());
+            }
+
+            if (pivotInverseFound || pivotIsIdentity) {
+                break;
+            }
+        }
+        // Make sure the pivot and its inverse are present.
+        // Otherwise we cant use the pivot as an object offset, as that transform
+        // should be inherited by any children the node may have.
+        else if (xformop.GetOpName() == pivotInverseToken) {
+            pivotInverseFound = true;
+            if (pivotFound) {
+                break;
+            }
+        }
+    }
+
+    // If a pivot (and its inverse) exists, make use it as object offset.
+    // WARNING: This behavior will need to be disabled if/when we import animations. Indeed, object
+    // offset transforms cannot be animated in 3dsMax, unlike in USD.
+    const bool hasPivotOp = pivotFound && pivotInverseFound && !pivotIsIdentity;
+    if (hasPivotOp) {
+        // Remove it from the node's matrix.
+        maxTransformMatrix = pivotMatrix * maxTransformMatrix;
+        Point3 translation;
+        Quat   rotation;
+        Point3 scale;
+        DecomposeMatrix(Inverse(pivotMatrix), translation, rotation, scale);
+        maxNode->SetObjOffsetPos(translation);
+    }
+
+    auto         stage = context.GetStage();
+    const double endTimeCode = timeConfig.GetEndTimeCode();
+    // TODO: add an option to the UI to be able to change the sampling rate
+    constexpr double samplingRate = 1.0;
+
+    std::vector<double> usdTimeCodes;
+    usdTimeCodes.reserve(static_cast<size_t>(
+        std::ceil((endTimeCode - startTimeCode) * stage->GetTimeCodesPerSecond())));
+    for (double timeSample = startTimeCode; timeSample <= endTimeCode;) {
+        usdTimeCodes.emplace_back(timeSample);
+        timeSample += 1.0 / samplingRate;
+    }
+
+    // There's a bug in 3ds Max where the animation key is not created if the first time being
+    // animated is 0. To go around that, have the time 0 being set later.
+    if (startTimeCode == 0.0) {
+        std::swap(*usdTimeCodes.begin(), *(usdTimeCodes.end() - 1));
+    }
+
+    {
+        // only set keyframes if there is animation
+        if (usdTimeCodes.size() > 1 && !xformPrim.TransformMightBeTimeVarying()) {
+            usdTimeCodes.erase(usdTimeCodes.begin() + 1, usdTimeCodes.end());
+        }
+        if (usdTimeCodes.size() > 1) {
+            AnimateOn();
+        }
+        for (const auto& currentTimeCode : usdTimeCodes) {
+            xformComputeCache.SetTime(currentTimeCode);
+            // Compute the node's transform.
+            pxr::GfMatrix4d usdMatrix = xformComputeCache.GetLocalToWorldTransform(prim);
+            if (MaxUsd::IsStageUsingYUpAxis(prim.GetStage())) {
+                MaxUsd::MathUtils::ModifyTransformYToZUp(usdMatrix);
+            }
+
+            Matrix3 maxMatrix;
+            MaxSDK::Graphics::Matrix44ToMaxWorldMatrix(maxMatrix, MaxUsd::ToMax(usdMatrix));
+
+            // apply correction
+            maxMatrix = correction * maxMatrix;
+
+            if (hasPivotOp) {
+                maxMatrix = pivotMatrix * maxMatrix;
+            }
+
+            maxNode->SetNodeTM(
+                MaxUsd::GetMaxTimeValueFromUsdTimeCode(stage, currentTimeCode), maxMatrix);
+        }
+        // only set keyframes if there is animation
+        if (usdTimeCodes.size() > 1) {
+            AnimateOff();
+        }
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/MaxUsd/Translators/TranslatorXformable.h b/src/MaxUsd/Translators/TranslatorXformable.h
new file mode 100644
index 0000000..066131a
--- /dev/null
+++ b/src/MaxUsd/Translators/TranslatorXformable.h
@@ -0,0 +1,41 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "ReadJobContext.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/// \brief Provides helper functions for reading UsdGeomXformable.
+struct MaxUsdTranslatorXformable
+{
+    /// \brief reads xform attributes from xformable and converts them into 3ds Max transform values.
+    // \param prim The prim associated to the 3ds Max Node
+    // \param maxNode The 3ds Max node to position
+    // \param context The current MaxUsdReadJobContext to register the 3ds Node to
+    // \param correction Any correction to apply on the UsdPrim transform to properly position the 3ds Max node
+    MaxUSDAPI static void Read(
+        const UsdPrim&        prim,
+        INode*                maxNode,
+        MaxUsdReadJobContext& context,
+        const Matrix3&        correction = Matrix3::Identity);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/WriteJobContext.cpp b/src/MaxUsd/Translators/WriteJobContext.cpp
new file mode 100644
index 0000000..f68bb2e
--- /dev/null
+++ b/src/MaxUsd/Translators/WriteJobContext.cpp
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "WriteJobContext.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdWriteJobContext::MaxUsdWriteJobContext(
+    UsdStageRefPtr                        stage,
+    const std::string&                    filename,
+    const MaxUsd::USDSceneBuilderOptions& args,
+    bool                                  isUSDZ = false)
+    : args(args)
+    , stage(stage)
+    , filename(filename)
+    , isUSDZ(isUSDZ)
+{
+    const fs::path filePath(filename);
+    tokensMap["<filename>"] = filePath.filename().replace_extension("").string();
+}
+
+void MaxUsdWriteJobContext::SetNodeToPrimMap(const std::map<INode*, SdfPath>& nodesToPrims)
+{
+    maxNodesToPrims = nodesToPrims;
+}
+
+std::string MaxUsdWriteJobContext::ResolveString(const std::string& input) const
+{
+    std::string result = input;
+    for (auto& token : tokensMap) {
+        result = MaxUsd::ResolveToken(result, token.first, token.second);
+    }
+    return result;
+}
+
+const MaterialBindings& MaxUsdWriteJobContext::GetMaterialBindings() const
+{
+    return materialBindings;
+}
+
+void MaxUsdWriteJobContext::SetMaterialBindings(const MaterialBindings& materialBindings)
+{
+    this->materialBindings = materialBindings;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/Translators/WriteJobContext.h b/src/MaxUsd/Translators/WriteJobContext.h
new file mode 100644
index 0000000..59c4e39
--- /dev/null
+++ b/src/MaxUsd/Translators/WriteJobContext.h
@@ -0,0 +1,188 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/sdf/path.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsd_MaterialWriteJob;
+
+class MaterialBinding
+{
+public:
+    MaxUSDAPI MaterialBinding(Mtl* material, const std::list<SdfPath>& bindings)
+        : material(material)
+        , bindings(bindings)
+    {
+    }
+    MaxUSDAPI MaterialBinding(const MaterialBinding& copy)
+    {
+        material = copy.material;
+        bindings = copy.bindings;
+    }
+    MaxUSDAPI Mtl* GetMaterial() const { return material; }
+    MaxUSDAPI std::list<SdfPath>& GetBindings() { return bindings; }
+
+private:
+    Mtl*               material;
+    std::list<SdfPath> bindings;
+};
+using MaterialBindings = std::vector<MaterialBinding>;
+
+/// Provides basic functionality and access to shared data for prim and shader writers.
+class MaxUsdWriteJobContext
+{
+public:
+    /**
+     * \brief Constructor.
+     */
+    MaxUSDAPI MaxUsdWriteJobContext(
+        UsdStageRefPtr                        stage,
+        const std::string&                    filename,
+        const MaxUsd::USDSceneBuilderOptions& args,
+        bool                                  isUSDZ);
+
+    /**
+     * \brief Destructor.
+     */
+    MaxUSDAPI ~MaxUsdWriteJobContext() = default;
+
+    /**
+     * \brief Returns the export arguments.
+     * \return Export arguments
+     */
+    MaxUSDAPI const MaxUsd::USDSceneBuilderOptions& GetArgs() const { return args; }
+
+    /**
+     * \brief The USD Stage we are inthe process of building.
+     * \return The usd
+     */
+    MaxUSDAPI const UsdStageRefPtr& GetUsdStage() const { return stage; }
+
+    /**
+     * \brief Gets the file we are exporting to.
+     * \return The file path.
+     */
+    MaxUSDAPI const std::string& GetFilename() const { return filename; }
+
+    /**
+     * \brief Sets the current nodes being exported and their respective paths
+     * \param nodesToPrims map with the nodes being exported and their paths
+     */
+    MaxUSDAPI void SetNodeToPrimMap(const std::map<INode*, SdfPath>& nodesToPrims);
+
+    /**
+     * \brief Returns the nodes being exported and their respective prim paths.
+     * \return Map with the nodes and their prim path.
+     */
+    MaxUSDAPI const std::map<INode*, SdfPath>& GetNodesToPrimsMap() const
+    {
+        return maxNodesToPrims;
+    }
+
+    /**
+     * \brief Gets the map of exported materials.
+     * \return The map of exported materials
+     */
+    MaxUSDAPI const std::map<Mtl*, SdfPath>& GetMaterialsToPrimsMap() const
+    {
+        return materialToPrims;
+    }
+
+    /**
+     * \brief Add the exported path of a material to the map
+     */
+    MaxUSDAPI void AddExportedMaterial(Mtl* material, const SdfPath& path)
+    {
+        materialToPrims[material] = path;
+    }
+
+    /**
+     * \brief Check if the file to be exported is a USDZ file.
+     * \return "true" if the exported file should be a USDZ file.
+     */
+    MaxUSDAPI bool IsUSDZFile() const { return isUSDZ; }
+
+    /**
+     * \brief Returns the layers we've discovered while exporting.
+     * \return The map matching the layer identifier and their pointer.
+     */
+    MaxUSDAPI const std::map<std::string, pxr::SdfLayerRefPtr>& GetLayerMap() const
+    {
+        return usdLayersMap;
+    }
+
+    /**
+     * \brief Adds a layer to the map of layers we've discovered while exporting.
+     * These layers are saved to disk at the end of the export.
+     * The map is used to keep track of the layers.
+     * \param layerIdentifier The identifier set by the user in the UI.
+     * \param layer The layer to add to the map.
+     */
+    MaxUSDAPI void
+    AddUsedLayerIdentifier(const std::string& layerIdentifier, const SdfLayerRefPtr& layer)
+    {
+        usdLayersMap[layerIdentifier] = layer;
+    }
+
+    /**
+     * \brief Find and replace known tokens in the input string.
+     * \param input String to resolve
+     * \return The resolved string
+     */
+    MaxUSDAPI std::string ResolveString(const std::string& input) const;
+
+    /**
+     * \brief Get the materials and which prims they are bound to.
+     * This information is available after the export of the geometry only.
+     * \return The material bindings
+     */
+    MaxUSDAPI const MaterialBindings& GetMaterialBindings() const;
+
+    /**
+     * \brief Set the MaterialsBindings
+     * \param materialBindings
+     */
+    MaxUSDAPI void SetMaterialBindings(const MaterialBindings& materialBindings);
+
+protected:
+    // Args for the export (any & all export options).
+    const MaxUsd::USDSceneBuilderOptions& args;
+
+    // Stage used to write out USD file
+    UsdStageRefPtr stage;
+    // Filename for the USD file
+    std::string filename;
+    // Max nodes being exported and their prims
+    std::map<INode*, SdfPath> maxNodesToPrims;
+    // Materials being exported and their exported paths
+    std::map<Mtl*, SdfPath> materialToPrims;
+    // Whether or not the exported file should be of type USDZ
+    bool isUSDZ;
+    // The layers discovered while exporting. The key is the identifier for the layer used in the
+    // UI.
+    std::map<std::string, SdfLayerRefPtr> usdLayersMap;
+    // Tokens map, used to replace tokens received the UI.
+    std::map<std::string, std::string> tokensMap;
+    // The 3ds Max materials and which prims they are bound to.
+    MaterialBindings materialBindings;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/MaxUsd/USDCore.cpp b/src/MaxUsd/USDCore.cpp
new file mode 100644
index 0000000..2ad101e
--- /dev/null
+++ b/src/MaxUsd/USDCore.cpp
@@ -0,0 +1,174 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDCore.h"
+
+#if MAX_VERSION_MAJOR < 26
+#include <qdir.h>
+#endif
+
+#if MAX_VERSION_MAJOR == 24
+#include <cctype> // force the correct std::tolower instead of the locale one
+#endif
+
+#include "Utilities/MaxSupportUtils.h"
+#include "Utilities/TranslationUtils.h"
+
+#include <pxr/base/plug/plugin.h>
+#include <pxr/base/plug/registry.h>
+
+#include <notify.h>
+#include <vector>
+
+#define CREATE_DEBUG_CONSOLE 0
+
+#if CREATE_DEBUG_CONSOLE
+#include <fcntl.h>
+#include <io.h>
+#endif
+
+void USDCore::initialize()
+{
+#if CREATE_DEBUG_CONSOLE
+    if (AllocConsole()) {
+        // Create stdin and stdout/err file handles
+        auto hIn = CreateFile(L"CONIN$", GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
+        auto hOut = CreateFile(L"CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
+
+        // Do the same for win32 API
+        SetStdHandle(STD_INPUT_HANDLE, hIn);
+        SetStdHandle(STD_OUTPUT_HANDLE, hOut);
+        SetStdHandle(STD_ERROR_HANDLE, hOut);
+
+        // Check for open() like handles
+        auto fdIn = _open_osfhandle(intptr_t(hIn), _O_RDONLY);
+        auto fdOut = _open_osfhandle(intptr_t(hOut), _O_APPEND);
+        _dup2(fdIn, 0);
+        _dup2(fdOut, 1);
+        _dup2(fdOut, 2);
+
+        // Handle FILE* type handles
+        freopen("CONIN$", "r", stdin);
+        freopen("CONOUT$", "w", stdout);
+        freopen("CONOUT$", "w", stderr);
+    }
+#endif
+
+    // WORKAROUND :
+    // Force load the usdSkel and usdRender libraries instead of letting them be lazy-loaded.
+    // Otherwise, if usd libraries are loaded/unloaded from third party code (ex: from arnold-usd),
+    // we can get into situations where the USD static initalizers are executed more than
+    // once, and this trips USD and can causes crashes. In principle this should not be happening,
+    // it looks to me that something is wrong in the USD plugin loading code, with dependencies not
+    // correctly being flagged as "loaded" in all cases. Indeed, it is also possible to trigger
+    // crashes with usdSkel, by just force loading all registered plugins - if usdSkelImaging gets
+    // loaded first, and loads the usdSkel.dll as a side effect, later, when we try to actually load
+    // the usdSkel plugin, we get a crash because of some debug symbols being already defined.
+    auto& plugRegistry = pxr::PlugRegistry::GetInstance();
+    plugRegistry.GetPluginWithName("usdSkel")->Load();
+    plugRegistry.GetPluginWithName("usdRender")->Load();
+
+    // Avoid lazy loading some of the USD plugins we know we will likely need - which can cause
+    // unacceptable delays when first using USD. Intentionally keeping the load calls above separate
+    // because the intent is different. Reloading an already loaded plugin is a noop.
+    std::vector<std::string> dependencies = { "sdf",
+                                              "usdSkel",
+                                              "usdUI",
+                                              "hdSt",
+                                              "hgiGL",
+                                              "usd",
+                                              "usdHydra",
+                                              "ar",
+                                              "usdVol",
+                                              "usdMtlx",
+                                              "glf",
+                                              "hd",
+                                              "sdrGlslfx",
+                                              "usdVolImaging",
+                                              "hdx",
+                                              "hio",
+                                              "usdSkelImaging",
+                                              "ndr",
+                                              "usdShade",
+                                              "usdImagingGL",
+                                              "usdGeom",
+                                              "usdRi",
+                                              "usdImaging",
+                                              "usdRiImaging",
+                                              "usdLux",
+                                              "usdMedia",
+                                              "usdRender",
+                                              "usdPhysics",
+                                              "usdShaders",
+                                              "usdAbc",
+                                              "hdStorm" };
+
+    for (auto& dependency : dependencies) {
+        auto plug = plugRegistry.GetPluginWithName(dependency);
+        if (!plug) {
+            continue;
+        }
+        plug->Load();
+        DbgAssert(plug->IsLoaded());
+    }
+
+    RegisterNotification(
+        MaxSDKSupport::DeletedModifierNotifyHandler, nullptr, NOTIFY_PRE_MODIFIER_DELETED);
+    RegisterNotification(
+        MaxSDKSupport::DeletedModifierNotifyHandler, nullptr, NOTIFY_POST_MODIFIER_DELETED);
+}
+
+fs::path USDCore::sanitizedFilename(const MCHAR* filePath, const MCHAR* defaultExtension)
+{
+    auto str = MaxUsd::MaxStringToUsdString(filePath);
+    auto ext = MaxUsd::MaxStringToUsdString(defaultExtension);
+    return sanitizedFilename(str, ext);
+}
+
+fs::path
+USDCore::sanitizedFilename(const std::string& filePath, const std::string& defaultExtension)
+{
+    auto path = fs::path(filePath);
+    path = path.make_preferred().string();
+    if (path.has_extension()) {
+        std::string ext = path.extension().string();
+        std::transform(
+            ext.begin(), ext.end(), ext.begin(), [](unsigned char c) { return std::tolower(c); });
+        path.replace_extension(ext);
+        if (!defaultExtension.empty()) {
+            if (std::set<std::string> { ".usd", ".usdc", ".usda", ".usdz" }.count(ext) == 0) {
+                {
+                    return path.replace_extension(defaultExtension);
+                }
+            }
+        }
+    } else if (!path.empty() && !defaultExtension.empty()) {
+        return path.string() + defaultExtension;
+    }
+    return path;
+}
+
+#if MAX_VERSION_MAJOR < 26
+std::string USDCore::relativePath(const fs::path& path, const fs::path& relative_to)
+{
+    fs::path p = fs::absolute(path);
+    fs::path r = fs::absolute(relative_to);
+
+    QDir    relativeTo(r.string().c_str());
+    QString relativePath = relativeTo.relativeFilePath(p.string().c_str());
+
+    return relativePath.toStdString();
+}
+#endif
\ No newline at end of file
diff --git a/src/MaxUsd/USDCore.h b/src/MaxUsd/USDCore.h
new file mode 100644
index 0000000..00f7fd5
--- /dev/null
+++ b/src/MaxUsd/USDCore.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <strclass.h>
+// MAXX-63363: VS2019 v142: <experimental/filesystem> is deprecated and superseded by the C++17
+// <filesystem> header
+#if _MSVC_LANG > 201402L
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#endif
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+class MaxUSDAPI USDCore
+{
+public:
+    static void initialize();
+    static fs::path
+    sanitizedFilename(const MCHAR* filePath, const MCHAR* defaultExtension = nullptr);
+    static fs::path sanitizedFilename(
+        const std::string& filePath,
+        const std::string& defaultExtension = std::string());
+
+#if MAX_VERSION_MAJOR < 26
+    static std::string relativePath(const fs::path& path, const fs::path& relative_to);
+#endif
+};
diff --git a/src/MaxUsd/USDSceneController.cpp b/src/MaxUsd/USDSceneController.cpp
new file mode 100644
index 0000000..cb6a63b
--- /dev/null
+++ b/src/MaxUsd/USDSceneController.cpp
@@ -0,0 +1,280 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDSceneController.h"
+
+#include "Builders/MaxSceneBuilder.h"
+#include "USDCore.h"
+#include "Utilities/DiagnosticDelegate.h"
+#include "Utilities/Logging.h"
+#include "Utilities/MaxProgressBar.h"
+#include "Utilities/PluginUtils.h"
+#include "Utilities/ScopeGuard.h"
+#include "Utilities/TranslationUtils.h"
+#include "Utilities/TypeUtils.h"
+#include "Utilities/UsdToolsUtils.h"
+
+#include <pxr/usd/sdf/copyUtils.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usd/primRange.h>
+#include <pxr/usd/usd/stage.h>
+#include <pxr/usd/usd/usdFileFormat.h>
+#include <pxr/usd/usd/usdaFileFormat.h>
+#include <pxr/usd/usdGeom/camera.h>
+#include <pxr/usd/usdUtils/dependencies.h>
+
+#include <IPathConfigMgr.h>
+#include <impexp.h>
+#include <string>
+
+using MaxUsd::ToMax;
+using MaxUsd::ToUsd;
+
+namespace MAXUSD_NS_DEF {
+
+USDSceneController::USDSceneController() { }
+
+USDSceneController::~USDSceneController() { }
+
+int USDSceneController::Import(
+    const MaxUsd::UsdStageSource& stageSource,
+    const MaxSceneBuilderOptions& buildOptions,
+    const fs::path&               filename)
+{
+    MaxUsd::Log::Session importLog("USDImport", buildOptions.GetLogOptions());
+    MaxUsd::Log::Info("Starting import of {} ", stageSource.ToString());
+
+    const auto diagnosticDelegate
+        = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::LogDelegate>();
+
+    const auto stage = stageSource.LoadStage(buildOptions);
+    if (!stage) {
+        MaxUsd::Log::Error("Unable to load the USD stage from {} ", stageSource.ToString());
+        return IMPEXP_FAIL;
+    }
+    // Disable a few things that may interfere with the import...
+    const auto prevAutoKey = GetCOREInterface12()->GetAutoKeyDefaultKeyOn();
+    const auto prevAutoTime = GetCOREInterface12()->GetAutoKeyDefaultKeyTime();
+    const auto importScopeGuard = MaxUsd::MakeScopeGuard(
+        []() {
+            GetCOREInterface17()->DisableSceneRedraw();
+            theHold.Suspend();
+            GetCOREInterface12()->SetAutoKeyDefaultKeyOn(false);
+            // Even with auto-key off, having the auto-key time non-zero is a source of trouble when
+            // importing animations.
+            GetCOREInterface12()->SetAutoKeyDefaultKeyTime(0);
+        },
+        [&prevAutoKey, &prevAutoTime]() {
+            GetCOREInterface17()->EnableSceneRedraw();
+            theHold.Resume();
+            GetCOREInterface12()->SetAutoKeyDefaultKeyOn(prevAutoKey);
+            GetCOREInterface12()->SetAutoKeyDefaultKeyTime(prevAutoTime);
+        });
+
+    // Builder to translate content from USD to 3ds Max:
+    MaxSceneBuilder    maxSceneBuilder;
+    auto               options = buildOptions.OptionsWithAppliedContexts();
+    const pxr::UsdPrim prim = stage->GetPseudoRoot();
+    int                importStatus
+        = maxSceneBuilder.Build(GetCOREInterface()->GetRootNode(), prim, options, filename);
+
+    if (importStatus == IMPEXP_SUCCESS) {
+        MaxUsd::Log::Info(L"Import completed.");
+    }
+
+    return importStatus;
+}
+
+int USDSceneController::Export(const fs::path& filePath, const USDSceneBuilderOptions& buildOptions)
+{
+    // Starting new USD export
+    MaxUsd::Log::Session exportLog("USDExport", buildOptions.GetLogOptions());
+    MaxUsd::Log::Info("Starting export to {} ", filePath.u8string());
+
+    auto oldPath = fs::current_path();
+    auto exportFolderPath = filePath.parent_path();
+    // Make sure to create this working directory. Otherwise current_path() will fail.
+    fs::create_directories(exportFolderPath);
+    // Suspend problematic activities (scene editing and scene redraw) while exporting. Also suspend
+    // the hold (undo/redo system). Some modifiers may create temporary nodes while they are being
+    // edited, these should not be considered.
+    const auto exportScopeGuard = MaxUsd::MakeScopeGuard(
+        [&exportFolderPath]() {
+            GetCOREInterface17()->SuspendEditing();
+            GetCOREInterface17()->DisableSceneRedraw();
+            theHold.Suspend();
+            fs::current_path(exportFolderPath);
+        },
+        [&oldPath]() {
+            GetCOREInterface17()->ResumeEditing();
+            GetCOREInterface17()->EnableSceneRedraw();
+            theHold.Resume();
+            fs::current_path(oldPath);
+        });
+
+    const auto diagnosticDelegate
+        = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::LogDelegate>();
+    USDSceneBuilder usdSceneBuilder;
+
+    auto options = buildOptions.OptionsWithAppliedContexts();
+    auto actualRootPath = options.GetRootPrimPath();
+
+    // Default behavior, use the file stem as root prim path name.
+    if (actualRootPath.IsEmpty()) {
+        actualRootPath = pxr::SdfPath("/").AppendPath(
+            pxr::SdfPath(pxr::TfMakeValidIdentifier(filePath.stem().string())));
+    }
+    options.SetRootPrimPath(actualRootPath);
+
+    fs::path    exportStageFilePath = filePath;
+    std::string stageExportExtension = filePath.extension().string();
+    bool        isUSDZExport = false;
+
+    // older max versions will provide upper case filename extensions
+    // this causes issues with SdfFileFormat api, so we force lowercase instead
+    std::transform(
+        stageExportExtension.begin(),
+        stageExportExtension.end(),
+        stageExportExtension.begin(),
+        [](unsigned char c) { return std::tolower(c); });
+
+    if (stageExportExtension == ".usdz") {
+        isUSDZExport = true;
+    }
+
+    if (isUSDZExport) {
+        // first export stage to .usd in #temp folder, then convert to usdz.
+        stageExportExtension = "usd";
+
+        exportStageFilePath = fs::path(MaxUsd::MaxStringToUsdString(
+            MaxSDKSupport::GetString(IPathConfigMgr::GetPathConfigMgr()->GetDir(APP_TEMP_DIR))));
+        exportStageFilePath /= MaxUsd::GenerateGUID();
+        exportStageFilePath /= filePath.filename();
+        exportStageFilePath.replace_extension(".usd");
+    }
+
+    bool                                       isCancelled = false;
+    std::map<std::string, pxr::SdfLayerRefPtr> editedLayers;
+    pxr::UsdStageRefPtr                        exportStage = usdSceneBuilder.Build(
+        options, isCancelled, exportStageFilePath, editedLayers, isUSDZExport);
+    if (isCancelled) {
+        return IMPEXP_CANCEL;
+    } else if (!exportStage) {
+        return IMPEXP_FAIL;
+    }
+
+    // Only use the format specified in the options if it is not explicit from the extension.
+    // When exporting via scripting, if there is a mismatch between the option and the extension,
+    // an exception is raised. When exporting via the UI, it is only possible to specify the
+    // format if not already inferred from the extension.
+    auto sdfFileFormat = pxr::SdfFileFormat::FindByExtension(stageExportExtension);
+    if (sdfFileFormat == nullptr) {
+        MaxUsd::Log::Error("Failed to find SdfFileFormat for extension {}", stageExportExtension);
+        return IMPEXP_FAIL;
+    }
+    auto formatId = sdfFileFormat->GetFormatId();
+    if (formatId == pxr::UsdUsdFileFormatTokens->Id) {
+        if (options.GetFileFormat() == USDSceneBuilderOptions::FileFormat::ASCII && !isUSDZExport) {
+            formatId = pxr::UsdUsdaFileFormatTokens->Id;
+        } else {
+            formatId = pxr::UsdUsdcFileFormatTokens->Id;
+        }
+    }
+
+    pxr::SdfLayer::FileFormatArguments fileFormatArguments {
+        { pxr::UsdUsdFileFormatTokens->FormatArg, formatId }
+    };
+    std::string exportStageFilePathStr = exportStageFilePath.u8string();
+    if (MaxUsd::HasUnicodeCharacter(exportStageFilePathStr)) {
+        MaxUsd::Log::Error(
+            "Failed to export to usdz as max's `getDir #temp` has unicode characters in its file "
+            "path: {0}",
+            exportStageFilePathStr);
+        return IMPEXP_FAIL;
+    }
+
+    auto rootLayer = exportStage->GetRootLayer();
+    auto subLayerPaths = rootLayer->GetSubLayerPaths();
+
+    pxr::VtDictionary customLayerData;
+    customLayerData[pxr::MaxUsdMetadataTokens->creator]
+        = "USD for Autodesk 3ds Max: " + MaxUsd::GetPluginDisplayVersion();
+
+    for (const auto& editedLayer : editedLayers) {
+        auto layer = editedLayer.second; // pxr::SdfLayer::FindOrOpen(editedLayer);
+        // Add custom layer metadata
+        layer->SetCustomLayerData(customLayerData);
+        if (!layer->Export(editedLayer.first)) {
+            MaxUsd::Log::Error("Failed to export layer to {}", layer->GetIdentifier());
+            return IMPEXP_FAIL;
+        }
+        // Replace the sublayer path with a relative path to the exported stage file
+        if (subLayerPaths.Find(layer->GetIdentifier()) != static_cast<size_t>(-1)) {
+#if MAX_VERSION_MAJOR < 26
+            auto resultStr
+                = USDCore::relativePath(editedLayer.first, exportStageFilePath.parent_path());
+#else
+            auto resultStr
+                = relative(editedLayer.first, exportStageFilePath.parent_path()).string();
+#endif
+            std::replace(resultStr.begin(), resultStr.end(), '\\', '/');
+            subLayerPaths.Replace(layer->GetIdentifier(), resultStr);
+        }
+    }
+
+    rootLayer->SetCustomLayerData(customLayerData);
+
+    if (!rootLayer->Export(exportStageFilePathStr, "", fileFormatArguments)) {
+        MaxUsd::Log::Error("Failed to export stage to {}", exportStageFilePathStr);
+        return IMPEXP_FAIL;
+    }
+
+    if (isUSDZExport) {
+        MaxUsd::Log::Info(L"Converting exported stage to USDZ");
+
+        if (!MaxUsd::UsdToolsUtils::RunUsdZip(filePath, exportStageFilePath)) {
+            MaxUsd::Log::Error("Failed to write usdz file {}", filePath.string());
+            return IMPEXP_FAIL;
+        }
+        MaxUsd::Log::Info("Added {} to {}", exportStageFilePathStr, filePath.string());
+
+        // remove the temp folder along with the exported stage file
+        if (!fs::remove_all(exportStageFilePath.parent_path())) {
+            MaxUsd::Log::Error(
+                "Failed to remove temp exported stage path {}",
+                exportStageFilePath.parent_path().u8string());
+            return IMPEXP_FAIL;
+        }
+    }
+
+    MaxUsd::Log::Info("Export completed.");
+
+    // If requested, open the file in Usdview.
+    if (options.GetOpenInUsdview()) {
+        if (!MaxUsd::UsdToolsUtils::OpenInUsdView(filePath)) {
+            MaxUsd::Log::Error("Failed to open {} in Usdview.", filePath.string());
+        }
+    }
+    return IMPEXP_SUCCESS;
+}
+
+MaxUSDAPI USDSceneController* GetUSDSceneController()
+{
+    static USDSceneController controller;
+    return &controller;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/USDSceneController.h b/src/MaxUsd/USDSceneController.h
new file mode 100644
index 0000000..a74250e
--- /dev/null
+++ b/src/MaxUsd/USDSceneController.h
@@ -0,0 +1,69 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "Builders/MaxSceneBuilderOptions.h"
+#include "Builders/USDSceneBuilder.h"
+#include "Builders/USDSceneBuilderOptions.h"
+#include "MaxUSDAPI.h"
+
+#include <MaxUsd/UsdStageSource.h>
+
+#include <pxr/usd/usd/stageCacheContext.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Handle a Usd stage within a 3ds Max scene.
+ */
+class MaxUSDAPI USDSceneController
+{
+public:
+    USDSceneController();
+    ~USDSceneController();
+
+    /**
+     * \brief Import a USD stage, as a set of 3ds Max primitives.
+     * \param stageSource The USD stage's source. Can be a file, or the cache.
+     * \param buildOptions Build options for the translation of the USD content into 3ds Max content.
+     * \param filename The USD filename/path. Can be an empty string in the case of importing from cache.
+     * \return IMPEXP_FAIL if failed, IMPEXP_SUCCESS if success and IMPEXP_CANCEL if cancelled by user
+     */
+    int Import(
+        const MaxUsd::UsdStageSource& stageSource,
+        const MaxSceneBuilderOptions& buildOptions,
+        const fs::path&               filename = "");
+
+    /**
+     * \brief Export root layer stage content to \a filename.
+     * \param filePath The absolute path to export to.
+     * \param buildOptions Build configuration options to use during the translation of 3ds Max content to USD content.
+     * \return IMPEXP_FAIL if failed, IMPEXP_SUCCESS if success and IMPEXP_CANCEL if cancelled by user
+     */
+    int Export(const fs::path& filePath, const USDSceneBuilderOptions& buildOptions);
+
+private:
+    /// Avoid caching USD files opened in 3ds Max based on their filenames, as successive openings
+    /// within the same 3ds Max session after editing content in an external application may cause
+    /// changes not to be picked up:
+    pxr::UsdStageCacheContext stageCacheContext {
+        pxr::UsdStageCacheContextBlockType::UsdBlockStageCachePopulation
+    };
+};
+
+MaxUSDAPI USDSceneController* GetUSDSceneController();
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/UsdStageSource.cpp b/src/MaxUsd/UsdStageSource.cpp
new file mode 100644
index 0000000..d048e70
--- /dev/null
+++ b/src/MaxUsd/UsdStageSource.cpp
@@ -0,0 +1,77 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageSource.h"
+
+#include "Utilities/TranslationUtils.h"
+
+namespace MAXUSD_NS_DEF {
+
+UsdStageSource::UsdStageSource(const pxr::UsdStageCache::Id& cacheId)
+{
+    type = CACHE;
+    this->cacheId = cacheId;
+}
+
+UsdStageSource::UsdStageSource(const fs::path& filePath)
+{
+    type = FILE;
+    this->filePath = filePath;
+}
+
+std::string UsdStageSource::ToString() const
+{
+    switch (type) {
+    case CACHE: return std::string("Cached Stage Id : ") + cacheId.ToString();
+    case FILE: return filePath.u8string();
+    default: DbgAssert(_T("Unhandled stage source type.")); return "";
+    }
+}
+
+pxr::UsdStageRefPtr UsdStageSource::LoadStage(const MaxSceneBuilderOptions& buildOptions) const
+{
+    switch (type) {
+    case FILE: {
+        pxr::UsdStagePopulationMask stageMask;
+        const auto&                 maskPaths = buildOptions.GetStageMaskPaths();
+        for (const auto& path : maskPaths) {
+            stageMask.Add(path);
+        }
+        const std::string usdfile = filePath.u8string();
+        return pxr::UsdStage::OpenMasked(usdfile, stageMask, buildOptions.GetStageInitialLoadSet());
+    }
+    case CACHE: {
+        MaxSceneBuilderOptions defaultOptions;
+        defaultOptions.SetDefaults();
+        const auto& defaultStageMask = defaultOptions.GetStageMaskPaths();
+        const auto& maskPaths = buildOptions.GetStageMaskPaths();
+        if (!std::equal(
+                defaultStageMask.begin(),
+                defaultStageMask.end(),
+                maskPaths.begin(),
+                maskPaths.end())) {
+            MaxUsd::Log::Warn("A stage population mask is specified, but this option is ignored "
+                              "when importing from the stage cache.");
+        }
+        if (defaultOptions.GetStageInitialLoadSet() != buildOptions.GetStageInitialLoadSet()) {
+            MaxUsd::Log::Warn("An initial loading set is specified, but this option is ignored "
+                              "when importing from the stage cache.");
+        }
+        return pxr::UsdUtilsStageCache::Get().Find(cacheId);
+    }
+    default: DbgAssert(_T("Unhandled stage souce type.")); return pxr::TfNullPtr;
+    }
+}
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/UsdStageSource.h b/src/MaxUsd/UsdStageSource.h
new file mode 100644
index 0000000..1844013
--- /dev/null
+++ b/src/MaxUsd/UsdStageSource.h
@@ -0,0 +1,61 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "Builders/MaxSceneBuilderOptions.h"
+
+namespace MAXUSD_NS_DEF {
+
+class MaxUSDAPI UsdStageSource
+{
+public:
+    enum Type
+    {
+        FILE,
+        CACHE
+    };
+
+    /**
+     * \brief Creates a USD stage source from the stage cache.
+     * \param cacheId The Stage's cache ID.
+     */
+    explicit UsdStageSource(const pxr::UsdStageCache::Id& cacheId);
+
+    /**
+     * \brief Creates a USD stage source from a file on disk.
+     * \param filePath The USD stage's file path.
+     */
+    explicit UsdStageSource(const fs::path& filePath);
+
+    /**
+     * \brief Returns a string representation of the USD source.
+     * \return The string representation.
+     */
+    std::string ToString() const;
+
+    /**
+     * \brief Loads the stage from the source.
+     * \param buildOptions Scene builder options to consider.
+     * \return The loaded USD stage.
+     */
+    pxr::UsdStageRefPtr LoadStage(const MaxSceneBuilderOptions& buildOptions) const;
+
+private:
+    Type                   type;
+    fs::path               filePath;
+    pxr::UsdStageCache::Id cacheId;
+};
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/DiagnosticDelegate.cpp b/src/MaxUsd/Utilities/DiagnosticDelegate.cpp
new file mode 100644
index 0000000..4cd846e
--- /dev/null
+++ b/src/MaxUsd/Utilities/DiagnosticDelegate.cpp
@@ -0,0 +1,162 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DiagnosticDelegate.h"
+
+#include "ListenerUtils.h"
+#include "Logging.h"
+#include "TranslationUtils.h"
+
+#include <pxr/base/arch/threads.h>
+#include <pxr/base/tf/envSetting.h>
+#include <pxr/base/tf/stackTrace.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+TF_DEFINE_ENV_SETTING(
+    MAXUSD_SHOW_FULL_DIAGNOSTICS,
+    false,
+    "This env flag controls the granularity of TF error/warning/status messages "
+    "being displayed in 3ds Max USD log files.");
+
+namespace MAXUSD_NS_DEF {
+namespace Diagnostics {
+
+static std::string _FormatDiagnostic(const TfDiagnosticBase& d)
+{
+    if (!TfGetEnvSetting(MAXUSD_SHOW_FULL_DIAGNOSTICS)) {
+        return d.GetCommentary();
+    } else {
+        const std::string msg = TfStringPrintf(
+            "%s -- %s in %s at line %zu of %s",
+            d.GetCommentary().c_str(),
+            TfDiagnosticMgr::GetCodeName(d.GetDiagnosticCode()).c_str(),
+            d.GetContext().GetFunction(),
+            d.GetContext().GetLine(),
+            d.GetContext().GetFile());
+        return msg;
+    }
+}
+
+DiagnosticDelegate::DiagnosticDelegate(bool buffered)
+    : buffered(buffered)
+{
+    TfDiagnosticMgr::GetInstance().AddDelegate(this);
+}
+
+DiagnosticDelegate::~DiagnosticDelegate() { TfDiagnosticMgr::GetInstance().RemoveDelegate(this); }
+
+void DiagnosticDelegate::IssueError(const TfError& err)
+{
+    const auto diagnosticMessage = _FormatDiagnostic(err);
+
+    if (ArchIsMainThread()) {
+        if (buffered) {
+            diagnosticMessages.emplace_back(Message::MessageType::Error, err);
+        }
+        WriteError(diagnosticMessage);
+    }
+}
+
+void DiagnosticDelegate::IssueStatus(const TfStatus& status)
+{
+    const auto diagnosticMessage = _FormatDiagnostic(status);
+
+    if (ArchIsMainThread()) {
+        if (buffered) {
+            diagnosticMessages.emplace_back(Message::MessageType::Status, status);
+        }
+        WriteInfo(diagnosticMessage);
+    }
+}
+
+void DiagnosticDelegate::IssueWarning(const TfWarning& warning)
+{
+    const auto diagnosticMessage = _FormatDiagnostic(warning);
+
+    if (ArchIsMainThread()) {
+        if (buffered) {
+            diagnosticMessages.emplace_back(Message::MessageType::Warning, warning);
+        }
+        WriteWarning(diagnosticMessage);
+    }
+}
+
+void DiagnosticDelegate::IssueFatalError(const TfCallContext& context, const std::string& msg)
+{
+    TfLogCrash(
+        "FATAL ERROR",
+        msg,
+        /*additionalInfo*/ std::string(),
+        context,
+        /*logToDb*/ true);
+    _UnhandledAbort();
+}
+
+bool DiagnosticDelegate::HasMessages() const { return buffered && !diagnosticMessages.empty(); }
+
+const std::vector<Message>& DiagnosticDelegate::GetDiagnosticMessages() const
+{
+    return diagnosticMessages;
+}
+
+TfDiagnosticMgr::Delegate* ScopedDelegate::runningDelegate { nullptr };
+
+ScopedDelegate ::~ScopedDelegate()
+{
+    if (runningDelegate) {
+        delete runningDelegate;
+        runningDelegate = nullptr;
+    }
+}
+
+bool ScopedDelegate::HasMessages() const
+{
+    return runningDelegate ? static_cast<DiagnosticDelegate*>(runningDelegate)->HasMessages()
+                           : false;
+}
+
+const std::vector<Message>& ScopedDelegate::GetDiagnosticMessages() const
+{
+    if (runningDelegate) {
+        return static_cast<DiagnosticDelegate*>(runningDelegate)->GetDiagnosticMessages();
+    }
+    static std::vector<Message> empty_vector {};
+    return empty_vector;
+}
+
+void LogDelegate::WriteError(const std::string& message) { Log::Error(message); }
+
+void LogDelegate::WriteWarning(const std::string& message) { Log::Warn(message); }
+
+void LogDelegate::WriteInfo(const std::string& message) { Log::Info(message); }
+
+void ListenerDelegate::WriteError(const std::string& message)
+{
+    Listener::Write(UsdStringToMaxString(message).data(), true);
+}
+
+void ListenerDelegate::WriteWarning(const std::string& message)
+{
+    Listener::Write(UsdStringToMaxString(message).data(), false);
+}
+
+void ListenerDelegate::WriteInfo(const std::string& message)
+{
+    Listener::Write(UsdStringToMaxString(message).data(), false);
+}
+
+} // namespace Diagnostics
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/DiagnosticDelegate.h b/src/MaxUsd/Utilities/DiagnosticDelegate.h
new file mode 100644
index 0000000..280e3b9
--- /dev/null
+++ b/src/MaxUsd/Utilities/DiagnosticDelegate.h
@@ -0,0 +1,134 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/diagnosticMgr.h>
+#include <pxr/pxr.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace Diagnostics {
+
+/// The buffered Tf diagnostics messages contained in the ScopedDiagnosticDelegate
+struct MaxUSDAPI Message
+{
+    enum class MessageType
+    {
+        Error,
+        Warning,
+        Status
+    };
+    MessageType           type;
+    pxr::TfDiagnosticBase message;
+
+    Message(const MessageType& type, const pxr::TfDiagnosticBase& message)
+        : type(type)
+        , message(message)
+    {
+    }
+};
+
+/// Scoped diagnostic delegate which converts Tf diagnostics messages,
+/// to application level messages (logging or otherwise, depending on the concrete
+///	delegate used) It can be configured to keep a buffered list of Tf diagnostics message
+/// or simply output the messages to mxsUsd Log System (by default)
+///
+/// One can use the environment variable 'MAXUSD_SHOW_FULL_DIAGNOSTICS' to control
+/// the granularity of TF error/warning/status messages being displayed in 3ds Max USD log files
+class MaxUSDAPI ScopedDelegate
+{
+public:
+    ~ScopedDelegate();
+    ScopedDelegate() = delete;
+
+    bool                        HasMessages() const;
+    const std::vector<Message>& GetDiagnosticMessages() const;
+
+    template <class T> static ScopedDelegate Create(bool buffered = false)
+    {
+        return ScopedDelegate(new T(buffered));
+    }
+
+private:
+    template <class T> ScopedDelegate(T* diagDelegate)
+    {
+        // there should be only one instance of this object in the same scope
+        DbgAssert(!runningDelegate);
+        if (!runningDelegate) {
+            runningDelegate = diagDelegate;
+        }
+    }
+
+    // the reference to the diagnostic delegate created for the original scope
+    static pxr::TfDiagnosticMgr::Delegate* runningDelegate;
+};
+
+//! Abstract delegate, can be derived to forward info/warn/err messages appropriately.
+class MaxUSDAPI DiagnosticDelegate : public pxr::TfDiagnosticMgr::Delegate
+{
+public:
+    ~DiagnosticDelegate() override;
+
+    void IssueError(const pxr::TfError& err) override;
+    void IssueStatus(const pxr::TfStatus& status) override;
+    void IssueWarning(const pxr::TfWarning& warning) override;
+    void IssueFatalError(const pxr::TfCallContext& context, const std::string& msg) override;
+
+    bool                        HasMessages() const;
+    const std::vector<Message>& GetDiagnosticMessages() const;
+
+protected:
+    virtual void WriteError(const std::string& message) = 0;
+    virtual void WriteWarning(const std::string& message) = 0;
+    virtual void WriteInfo(const std::string& message) = 0;
+
+private:
+    // DiagnosticDelegate subclasses can only be created from a ScopedDelegate.
+    DiagnosticDelegate(bool buffered);
+
+    bool                 buffered;
+    std::vector<Message> diagnosticMessages;
+};
+
+//! Delegate to forward diagnostics to the MaxUsd I/O logs.
+class MaxUSDAPI LogDelegate : public DiagnosticDelegate
+{
+    using DiagnosticDelegate::DiagnosticDelegate;
+    friend ScopedDelegate;
+
+protected:
+    void WriteError(const std::string& message) override;
+    void WriteWarning(const std::string& message) override;
+    void WriteInfo(const std::string& message) override;
+};
+
+//! Delegate to forward diagnostics to the 3dsMax listener.
+class MaxUSDAPI ListenerDelegate : public DiagnosticDelegate
+{
+    using DiagnosticDelegate::DiagnosticDelegate;
+    friend ScopedDelegate;
+
+protected:
+    void WriteError(const std::string& message) override;
+    void WriteWarning(const std::string& message) override;
+    void WriteInfo(const std::string& message) override;
+};
+
+} // namespace Diagnostics
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/DictionaryOptionProvider.h b/src/MaxUsd/Utilities/DictionaryOptionProvider.h
new file mode 100644
index 0000000..22871c1
--- /dev/null
+++ b/src/MaxUsd/Utilities/DictionaryOptionProvider.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/vt/dictionary.h>
+
+namespace MAXUSD_NS_DEF {
+
+class DictionaryOptionProvider
+{
+public:
+    // Returns the current options as a dictionary
+    MaxUSDAPI const pxr::VtDictionary& GetOptions() const { return options; }
+
+protected:
+    // Member variable to hold the options
+    pxr::VtDictionary options;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/GraphUtils.h b/src/MaxUsd/Utilities/GraphUtils.h
new file mode 100644
index 0000000..e0659b4
--- /dev/null
+++ b/src/MaxUsd/Utilities/GraphUtils.h
@@ -0,0 +1,150 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+#include <functional>
+#include <inode.h>
+#include <vector>
+
+namespace MAXUSD_NS_DEF {
+
+class INodeRange
+{
+public:
+    enum class TraversalType
+    {
+        PRE,
+        POST,
+        PRE_AND_POST,
+    };
+
+    class Iterator
+    {
+        friend class INodeRange;
+
+    public:
+        using iterator_category = std::forward_iterator_tag;
+        using value_type = INode*;
+        using reference = value_type&;
+        using pointer = value_type*;
+        using difference_type = std::ptrdiff_t;
+
+        void PruneChildren();
+
+        value_type operator*() { return dereference(); }
+
+        const value_type operator*() const { return dereference(); }
+
+        Iterator operator++() { return preincrement(); }
+
+        Iterator operator++(int) { return postincrement(); }
+
+        bool operator==(const Iterator& other) { return equal(other); }
+
+        bool operator!=(const Iterator& other) { return !equal(other); }
+
+    private:
+        std::vector<int> childIndices;
+        INode*           currentNode;
+        TraversalType    traversalType;
+        TraversalType    currentTraversalType;
+
+        Iterator(INode* subtreeRoot, TraversalType traversalType)
+            : currentNode(subtreeRoot)
+            , traversalType(traversalType)
+        {
+            switch (traversalType) {
+            case TraversalType::POST: {
+                currentTraversalType = TraversalType::POST;
+                if (subtreeRoot->NumberOfChildren()) {
+                    currentNode = subtreeRoot->GetChildNode(0);
+                    childIndices.push_back(0);
+                }
+                break;
+            }
+            }
+        }
+
+        Iterator(const Iterator&) = default;
+
+        value_type dereference() { return currentNode; }
+
+        const value_type dereference() const { return currentNode; }
+
+        Iterator preincrement()
+        {
+            switch (traversalType) {
+            case TraversalType::PRE: break;
+            }
+        }
+
+        Iterator postincrement() { return Iterator(*this); }
+
+        bool equal(const Iterator& other) const { return false; }
+    };
+
+    using iterator = Iterator;
+    using const_iterator = Iterator;
+
+    INodeRange(INode* subtreeRoot, TraversalType traversalType = TraversalType::PRE)
+        : subtreeRoot(subtreeRoot)
+        , traversalType(traversalType)
+    {
+    }
+
+    iterator begin() { return iterator(subtreeRoot, traversalType); }
+
+    const_iterator begin() const { return const_iterator(subtreeRoot, traversalType); }
+
+    const_iterator cbegin() { return const_iterator(subtreeRoot, traversalType); }
+
+    iterator end() { return iterator(nullptr, traversalType); }
+
+    const_iterator end() const { return const_iterator(nullptr, traversalType); }
+
+    const_iterator cend() { return const_iterator(nullptr, traversalType); }
+
+private:
+    INode*        subtreeRoot;
+    TraversalType traversalType;
+};
+
+inline void DepthFirstTraverseGraph(
+    INode*                                                                                 rootNode,
+    const std::function<bool(INode* currentNode, const std::vector<INode*>& parentNodes)>& action)
+{
+    std::vector<INode*>                 parentNodes;
+    std::vector<std::pair<int, INode*>> toProcess;
+    toProcess.emplace_back(0, rootNode);
+
+    while (!toProcess.empty()) {
+        auto node = toProcess.back().second;
+        auto depth = toProcess.back().first;
+        toProcess.pop_back();
+
+        parentNodes.resize(depth);
+
+        if (action(node, parentNodes)) {
+            for (auto i = 0; i < node->NumberOfChildren(); ++i) {
+                toProcess.emplace_back(depth + 1, node->GetChildNode(i));
+            }
+        }
+        parentNodes.push_back(node);
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/ListenerUtils.cpp b/src/MaxUsd/Utilities/ListenerUtils.cpp
new file mode 100644
index 0000000..303265d
--- /dev/null
+++ b/src/MaxUsd/Utilities/ListenerUtils.cpp
@@ -0,0 +1,45 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace Listener {
+
+MaxUSDAPI void Write(const MCHAR* message, bool isError = false)
+{
+    if (nullptr == the_listener) {
+        return;
+    }
+    const int oldStyle = the_listener->get_style();
+    if (isError) {
+        the_listener->set_style(LISTENER_STYLE_MESSAGE);
+    }
+
+    the_listener->edit_stream->puts(message);
+    the_listener->edit_stream->puts(_T("\n"));
+    the_listener->edit_stream->flush();
+
+    if (isError) {
+        the_listener->set_style(oldStyle);
+    }
+}
+} // namespace Listener
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/ListenerUtils.h b/src/MaxUsd/Utilities/ListenerUtils.h
new file mode 100644
index 0000000..6272c4e
--- /dev/null
+++ b/src/MaxUsd/Utilities/ListenerUtils.h
@@ -0,0 +1,31 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace Listener {
+
+/**
+ * \brief Writes to the 3dsMax listener.
+ * \param message The message to be written.
+ * \param isError If true, output the text in red.
+ */
+void Write(const MCHAR* message, bool isError = false);
+
+} // namespace Listener
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/Logging.cpp b/src/MaxUsd/Utilities/Logging.cpp
new file mode 100644
index 0000000..54892d2
--- /dev/null
+++ b/src/MaxUsd/Utilities/Logging.cpp
@@ -0,0 +1,87 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "Logging.h"
+
+#include "TranslationUtils.h"
+
+#include <max.h>
+#include <spdlog/common.h>
+#include <spdlog/sinks/rotating_file_sink.h>
+#include <spdlog/spdlog.h>
+
+namespace MAXUSD_NS_DEF {
+
+std::shared_ptr<spdlog::logger> Log::spdLogger = nullptr;
+bool                            Log::paused = false;
+
+Log::Session::Session(const std::string& name, const Options& options)
+{
+    // If level == off, avoid to create a logger entirely, otherwise the file may still be created.
+    if (options.level == Level::Off) {
+        return;
+    }
+    try {
+        spdLogger = spdlog::rotating_logger_st(name, options.path, maxLogSize, maxLogFiles);
+    } catch (...) {
+        GetCOREInterface()->Log()->LogEntry(
+            SYSLOG_WARN,
+            FALSE,
+            nullptr,
+            _T("The %s log could not be created at %s."),
+            MaxUsd::UsdStringToMaxString(name),
+            options.path.c_str());
+        return;
+    }
+
+    spdLogger->set_error_handler(
+        [](const std::string& logError) { spdLogger->error("Logger Error : {}", logError); });
+
+    spdlog::level::level_enum level;
+    switch (options.level) {
+    case Level::Info: level = spdlog::level::info; break;
+    case Level::Warn: level = spdlog::level::warn; break;
+    case Level::Error: level = spdlog::level::err; break;
+    case Level::Off:
+    default: level = spdlog::level::off;
+    }
+    spdLogger->set_level(level);
+}
+
+Log::Session::~Session()
+{
+    if (spdLogger) {
+        spdLogger->flush();
+        // Spdlog "registers" the loggers internally upon creation.
+        spdlog::drop(spdLogger->name());
+        spdLogger.reset();
+    }
+}
+
+void Log::Message(Level messageType, const std::wstring& message)
+{
+    switch (messageType) {
+    case Level::Info: Info(message); break;
+    case Level::Warn: Warn(message); break;
+    case Level::Error: Error(message); break;
+    default: break;
+    }
+}
+
+void Log::Pause() { paused = true; }
+
+void Log::Resume() { paused = false; }
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/Logging.h b/src/MaxUsd/Utilities/Logging.h
new file mode 100644
index 0000000..1b037c9
--- /dev/null
+++ b/src/MaxUsd/Utilities/Logging.h
@@ -0,0 +1,114 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <spdlog/spdlog.h>
+
+// MAXX-63363: VS2019 v142: <experimental/filesystem> is deprecated and superseded by the C++17
+// <filesystem> header
+#if _MSVC_LANG > 201402L
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#endif
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+
+#pragma warning(push)
+#pragma warning(disable : 4251) // class 'boost::shared_ptr<T>' needs to have dll-interface to be
+                                // used by clients of class MaxUsd::Log
+
+namespace MAXUSD_NS_DEF {
+
+/// Simple wrapper for some basic logging functionality provided by the spdlog library.
+class MaxUSDAPI Log
+{
+
+    /// The current spd logger in use. Can be null.
+    static std::shared_ptr<spdlog::logger> spdLogger;
+
+    /// Max file size for logs.
+    static const size_t maxLogSize = 1048576 * 200;
+    /// How many rotating log files.
+    static const size_t maxLogFiles = 5;
+
+    static bool paused;
+
+public:
+    /**
+     * \brief logging severity level for filtering
+     * \comment value of enum is important as it reflects the index in the ui of qcombobox
+     */
+    enum class Level
+    {
+        Off = 0,
+        Error = 1,
+        Warn = 2,
+        Info = 3
+    };
+
+    struct Options
+    {
+        fs::path path;
+        Level    level = Level::Off;
+    };
+
+    /// The Session class is useful for setting up logging within a scope, and using RAII to destroy
+    /// the logger. Starting a logging session will close any previously active sessions.
+    class Session
+    {
+    public:
+        Session(const std::string& name, const Options& options);
+        ~Session();
+    };
+
+    static void Message(Level messageType, const std::wstring& message);
+
+    static void Pause();
+    static void Resume();
+
+    template <typename FormatString, typename... Args>
+    static void Warn(const FormatString& fmt, const Args&... args)
+    {
+        if (spdLogger && !paused) {
+            spdLogger->warn(fmt, args...);
+        }
+    }
+
+    template <typename FormatString, typename... Args>
+    static void Info(const FormatString& fmt, const Args&... args)
+    {
+        if (spdLogger && !paused) {
+            spdLogger->info(fmt, args...);
+        }
+    }
+
+    template <typename FormatString, typename... Args>
+    static void Error(const FormatString& fmt, const Args&... args)
+    {
+        if (spdLogger && !paused) {
+            spdLogger->error(fmt, args...);
+        }
+    }
+};
+
+} // namespace MAXUSD_NS_DEF
+
+#pragma warning(pop)
diff --git a/src/MaxUsd/Utilities/MaterialRef.h b/src/MaxUsd/Utilities/MaterialRef.h
new file mode 100644
index 0000000..f508274
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaterialRef.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <ref.h>
+#include <stdmat.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Wrapper for a Max Material, protecting it from garbage collection by keeping
+ * a reference to it.
+ */
+class MaxUSDAPI MaterialRef : private SingleRefMaker
+{
+public:
+    MaterialRef(MtlBase* material)
+    {
+        this->SetRef(material);
+        this->SetAutoDropRefOnShutdown(AutoDropRefOnShutdown::PrePluginShutdown);
+        this->material = material;
+    }
+
+    template <class T> T* GetAs() const { return dynamic_cast<T*>(material); }
+
+private:
+    MtlBase* material;
+};
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MaterialUtils.cpp b/src/MaxUsd/Utilities/MaterialUtils.cpp
new file mode 100644
index 0000000..8810ffd
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaterialUtils.cpp
@@ -0,0 +1,214 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaterialUtils.h"
+
+#include <MaxUsd/MaxTokens.h>
+
+#include <stdmat.h>
+
+namespace MAXUSD_NS_DEF {
+namespace MaterialUtils {
+
+// clang-format off
+const pxr::TfTokenVector USDPREVIEWSURFACE_MAPS = 
+{
+	pxr::MaxUsdUsdPreviewSurfaceTokens->diffuseColor,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->specularColor,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->metallic,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->normal,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->occlusion,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->emissiveColor,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->opacity,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->displacement,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->ior,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->clearcoat,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->clearcoatRoughness,
+	pxr::MaxUsdUsdPreviewSurfaceTokens->roughness
+};
+// clang-format on
+
+// In the standard viewport, only support the diffuse color.
+const pxr::TfTokenVector USDPREVIEWSURFACE_STD_VP_MAPS
+    = { pxr::MaxUsdUsdPreviewSurfaceTokens->diffuseColor };
+
+std::string CreateSubsetName(Mtl* mtl, MtlID materialIndex)
+{
+    std::string name;
+
+    // In the UI and maxscript, material indices start at 1. Use this for naming.
+    const auto maxScriptId = materialIndex + 1;
+
+    Mtl*      resolvedMtl = mtl ? mtl->ResolveWrapperMaterials(true) : nullptr;
+    MultiMtl* multiMtl = dynamic_cast<MultiMtl*>(resolvedMtl);
+    if (resolvedMtl == nullptr || multiMtl == nullptr) {
+        // _{materialIndex}_ if the mtl is null or not a multiMtl
+        name.append("_").append(std::to_string(maxScriptId)).append("_");
+    } else {
+        // For multi material try to use the slot name.
+        MSTR slotName;
+        multiMtl->GetSubMtlName(materialIndex, slotName);
+        name = slotName.ToCStr().data();
+        if (name.empty()) {
+            // If the slot name is empty use _{maxScriptId}_{subMaterialName}
+            name.append("_").append(std::to_string(maxScriptId)).append("_");
+            Mtl* subMtl = resolvedMtl->GetSubMtl(materialIndex);
+            if (subMtl) {
+                name.append(subMtl->GetName().ToCStr().data());
+            }
+        }
+    }
+
+    return pxr::TfMakeValidIdentifier(name);
+}
+
+pxr::TfToken GetUsdUVTexturePrimvar(
+    const pxr::HdMaterialNode&                                                   usdUvTextureNode,
+    const pxr::HdMaterialNetwork&                                                materialNetwork,
+    const pxr::TfHashMap<pxr::SdfPath, pxr::HdMaterialNode, pxr::SdfPath::Hash>& pathToNode)
+{
+    auto getInput = [&materialNetwork](
+                        const pxr::HdMaterialNode& node, const pxr::TfToken& name) -> pxr::SdfPath {
+        for (const auto& rel : materialNetwork.relationships) {
+            if (rel.outputName != name) {
+                continue;
+            }
+            if (node.path == rel.outputId) {
+                return rel.inputId;
+            }
+        }
+        return pxr::SdfPath {};
+    };
+
+    const pxr::SdfPath stInputPath = getInput(usdUvTextureNode, pxr::TfToken("st"));
+    if (!stInputPath.IsEmpty()) {
+        const auto itSt = pathToNode.find(stInputPath);
+        if (itSt == pathToNode.end()) {
+            return pxr::TfToken {};
+        }
+
+        const auto          stInputNode = itSt->second;
+        pxr::HdMaterialNode primvarReaderNode;
+
+        // Case where the primvar reader is connected to the UsdUVTexture directly.
+        if (stInputNode.identifier == pxr::TfToken("UsdPrimvarReader_float2")) {
+            primvarReaderNode = stInputNode;
+        }
+        // Case where the primvar reader is connected to a UsdTransform2d, which is then connected
+        // to the UsdUVTexture.
+        if (stInputNode.identifier == pxr::TfToken("UsdTransform2d")) {
+            pxr::SdfPath inInputPath = getInput(stInputNode, pxr::TfToken("in"));
+
+            const auto itIn = pathToNode.find(inInputPath);
+
+            if (itIn == pathToNode.end()) {
+                return pxr::TfToken {};
+            }
+            primvarReaderNode = itIn->second;
+        }
+
+        const auto it = primvarReaderNode.parameters.find(pxr::TfToken("varname"));
+        if (it != primvarReaderNode.parameters.end()) {
+            auto varName = it->second;
+            if (varName.CanCast<pxr::TfToken>()) {
+                return varName.Cast<pxr::TfToken>().Get<pxr::TfToken>();
+            }
+        }
+    }
+    return pxr::TfToken {};
+}
+
+std::string ToXML(const pxr::HdMaterialNetwork& materialNetwork, bool includeParams)
+{
+    PXR_NAMESPACE_USING_DIRECTIVE
+    // Implementation below is taken from Maya-usd's vp2RenderDelegate/material.cpp
+
+    std::string result;
+
+    if (ARCH_LIKELY(!materialNetwork.nodes.empty())) {
+        // Reserve enough memory to avoid memory reallocation.
+        result.reserve(1024);
+
+        result += "<nodes>\n";
+
+        if (includeParams) {
+            for (const pxr::HdMaterialNode& node : materialNetwork.nodes) {
+                result += "  <node path=\"";
+                result += node.path.GetString();
+                result += "\" id=\"";
+                result += node.identifier;
+                result += "\">\n";
+
+                result += "    <params>\n";
+
+                for (auto const& parameter : node.parameters) {
+                    result += "      <param name=\"";
+                    result += parameter.first;
+                    result += "\" value=\"";
+                    result += TfStringify(parameter.second);
+                    result += "\"/>\n";
+                }
+
+                result += "    </params>\n";
+
+                result += "  </node>\n";
+            }
+        } else {
+            for (const pxr::HdMaterialNode& node : materialNetwork.nodes) {
+                result += "  <node path=\"";
+                result += node.path.GetString();
+                result += "\" id=\"";
+                result += node.identifier;
+                result += "\"/>\n";
+            }
+        }
+
+        result += "</nodes>\n";
+
+        if (!materialNetwork.relationships.empty()) {
+            result += "<relationships>\n";
+
+            for (const pxr::HdMaterialRelationship& rel : materialNetwork.relationships) {
+                result += "  <rel from=\"";
+                result += rel.inputId.GetString();
+                result += ".";
+                result += rel.inputName;
+                result += "\" to=\"";
+                result += rel.outputId.GetString();
+                result += ".";
+                result += rel.outputName;
+                result += "\"/>\n";
+            }
+
+            result += "</relationships>\n";
+        }
+
+        if (!materialNetwork.primvars.empty()) {
+            result += "<primvars>\n";
+
+            for (pxr::TfToken const& primvar : materialNetwork.primvars) {
+                result += "  <primvar name=\"";
+                result += primvar;
+                result += "\"/>\n";
+            }
+
+            result += "</primvars>\n";
+        }
+    }
+    return result;
+}
+
+} // namespace MaterialUtils
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MaterialUtils.h b/src/MaxUsd/Utilities/MaterialUtils.h
new file mode 100644
index 0000000..10b36ca
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaterialUtils.h
@@ -0,0 +1,62 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/imaging/hd/material.h>
+
+#include <MaxUsd.h>
+#include <materials/Mtl.h>
+
+namespace MAXUSD_NS_DEF {
+namespace MaterialUtils {
+
+/// The names of all map type for UsdPreviewSurface materials.
+MaxUSDAPI extern const pxr::TfTokenVector USDPREVIEWSURFACE_MAPS;
+/// Maps supported in the standard viewport, only the diffuse color.
+MaxUSDAPI extern const pxr::TfTokenVector USDPREVIEWSURFACE_STD_VP_MAPS;
+
+/**
+ * \brief Create subsetName for a given mtl and material id
+ * \param mtl Pointer to the material for which to generate a name
+ * \param materialIndex id of the material on the mesh for multi material
+ **/
+MaxUSDAPI std::string CreateSubsetName(Mtl* mtl, MtlID materialIndex);
+
+/**
+ * \brief Returns the name of the primvar used by the given UsdUVTexture
+ * \param usdUvTextureNode The UsdUVTexture for which to find the primvar.
+ * \param materialNetwork The material network, which the node is part of.
+ * \param pathToNode A map of paths to material nodes. All nodes in the material network are expected to be in this map.
+ * \return The primvar that ends up being used by this UsdUVTexture, or empty if not found.
+ */
+MaxUSDAPI pxr::TfToken GetUsdUVTexturePrimvar(
+    const pxr::HdMaterialNode&                                                   usdUvTextureNode,
+    const pxr::HdMaterialNetwork&                                                materialNetwork,
+    const pxr::TfHashMap<pxr::SdfPath, pxr::HdMaterialNode, pxr::SdfPath::Hash>& pathToNode);
+
+/**
+ * \brief Helper function to generate a XML string about nodes, relationships and primvars in the
+ * specified material network.
+ * \param materialNetwork The material network to convert to XML.
+ * \param includeParams Whether or not to serialized the material's parameters.
+ * \return And XML string representing the material network.
+ */
+MaxUSDAPI std::string
+          ToXML(const pxr::HdMaterialNetwork& materialNetwork, bool includeParams = true);
+
+} // namespace MaterialUtils
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MathUtils.cpp b/src/MaxUsd/Utilities/MathUtils.cpp
new file mode 100644
index 0000000..5862351
--- /dev/null
+++ b/src/MaxUsd/Utilities/MathUtils.cpp
@@ -0,0 +1,129 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MathUtils.h"
+
+#include "MaxSupportUtils.h"
+
+#include <pxr/usd/usdSkel/utils.h>
+
+#include <math.h>
+
+namespace MAXUSD_NS_DEF {
+namespace MathUtils {
+
+double RoundToSignificantDigit(double value, int numberOfSignificantDigit)
+{
+    if (value == 0.0) {
+        return 0.0;
+    }
+
+    double scalingFactor = pow(10.0, numberOfSignificantDigit - std::ceil(log10(fabs(value))));
+    return std::round(value * scalingFactor) / scalingFactor;
+}
+
+double RoundToPrecision(double value, double precision)
+{
+    if (precision == 0.0) {
+        DbgAssert("Zero is not a valid decimal precision.");
+        return value;
+    }
+    return std::round(value / precision) * precision;
+}
+
+bool IsAlmostZero(float value) { return abs(value) < FLT_EPSILON; }
+
+void ModifyTransformYToZUp(pxr::GfMatrix4d& transformMatrix)
+{
+    // -90 degree rotation on the X axis
+    pxr::GfMatrix4d axisTransform(1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1);
+    transformMatrix *= axisTransform;
+}
+
+void ModifyTransformZToYUp(pxr::GfMatrix4d& transformMatrix)
+{
+    // 90 degree rotation on the X axis
+    pxr::GfMatrix4d axisTransform(1, 0, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, 0, 1);
+    transformMatrix *= axisTransform;
+}
+
+bool IsIdentity(const Matrix3& maxMatrix3) { return maxMatrix3.Equals(Matrix3::Identity); }
+
+void RoundMatrixValues(pxr::GfMatrix4d& matrix, int numberOfSignificantDigit)
+{
+    for (int i = 0; i < 4; ++i) {
+        for (int j = 0; j < 4; ++j) {
+            matrix[i][j] = RoundToSignificantDigit(matrix[i][j], numberOfSignificantDigit);
+        }
+    }
+}
+
+void RoundMatrixValues(Matrix3& matrix, int numberOfSignificantDigit)
+{
+    for (int i = 0; i < 4; ++i) {
+        const Point3& p3 = matrix.GetRow(i);
+        Point3        roundedPoint;
+        roundedPoint.x
+            = static_cast<float>(RoundToSignificantDigit(p3.x, numberOfSignificantDigit));
+        roundedPoint.y
+            = static_cast<float>(RoundToSignificantDigit(p3.y, numberOfSignificantDigit));
+        roundedPoint.z
+            = static_cast<float>(RoundToSignificantDigit(p3.z, numberOfSignificantDigit));
+
+        matrix.SetRow(i, roundedPoint);
+    }
+}
+
+bool IsIdentity(const pxr::GfMatrix4d& matrix, float epsilon)
+{
+    pxr::GfMatrix4d identity(1);
+    for (int i = 0; i < 4; ++i) {
+        for (int j = 0; j < 4; ++j) {
+            if (fabs(matrix[i][j] - identity[i][j]) > epsilon) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+bool FixNonUniformScaling(pxr::GfMatrix4d& transform)
+{
+    auto isUniformScaling = [](const pxr::GfVec3h& scale) {
+        const auto halfEpsilon = std::numeric_limits<float>::epsilon();
+        return (abs(scale.data()[0] - scale.data()[1]) <= halfEpsilon)
+            && (abs(scale.data()[0] - scale.data()[2]) <= halfEpsilon);
+    };
+
+    pxr::GfVec3f translation;
+    pxr::GfQuatf rotation;
+    pxr::GfVec3h scale;
+    pxr::UsdSkelDecomposeTransform(transform, &translation, &rotation, &scale);
+
+    // nothing to do if already uniform
+    if (isUniformScaling(scale)) {
+        return false;
+    }
+
+    const auto scaleX = scale.data()[0];
+    const auto scaleY = scale.data()[1];
+    const auto scaleZ = scale.data()[2];
+
+    transform.SetScale((scaleX + scaleY + scaleZ) / 3.f);
+    return true;
+}
+
+} // namespace MathUtils
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MathUtils.h b/src/MaxUsd/Utilities/MathUtils.h
new file mode 100644
index 0000000..c230f6c
--- /dev/null
+++ b/src/MaxUsd/Utilities/MathUtils.h
@@ -0,0 +1,108 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+
+class Matrix3;
+
+namespace MAXUSD_NS_DEF {
+namespace MathUtils {
+
+/**
+ * \brief Round value to the number of significant digit specified.
+ *  Will return nan if numberOfSignificantDigit - order of magnitude of value > 309
+ */
+MaxUSDAPI double RoundToSignificantDigit(double value, int numberOfSignificantDigit);
+
+/**
+ * \brief Round value to the specified precision.
+ */
+MaxUSDAPI double RoundToPrecision(double value, double precision = 1.0);
+
+/**
+ * \brief Returns whether the given value is within FLT_EPSILON of zero.
+ * \param value The value to test.
+ * \return True if the value is almost zero, false otherwise.
+ */
+MaxUSDAPI bool IsAlmostZero(float value);
+
+/**
+ * \brief Modify the transform matrix to convert from Y up axis to Z up axis.
+ * \param transformMatrix The base transform matrix on which to add the axis transform operation
+ */
+MaxUSDAPI void ModifyTransformYToZUp(pxr::GfMatrix4d& transformMatrix);
+
+/**
+ * \brief Modify the transform matrix to convert from Z up axis to Y up axis.
+ * \param transformMatrix The base transform matrix on which to add the axis transform operation
+ */
+MaxUSDAPI void ModifyTransformZToYUp(pxr::GfMatrix4d& transformMatrix);
+
+/**
+ * \brief return true if the provided matrix is equal to identity.
+ * \param maxMatrix3 max Matrix3
+ * \return true if Matrix3 is identity
+ */
+MaxUSDAPI bool IsIdentity(const Matrix3& maxMatrix3);
+
+/**
+ * \brief round every value in the matrix to the desired number of significant digits.
+ * \param matrix for which to round the values.
+ * \param numberOfSignificantDigit number of significant digits to use for rounding.
+ */
+MaxUSDAPI void RoundMatrixValues(pxr::GfMatrix4d& matrix, int numberOfSignificantDigit);
+
+/**
+ * \brief round every value in the matrix to the desired number of significant digits.
+ * \param matrix for which to round the values.
+ * \param numberOfSignificantDigit number of significant digits to use for rounding.
+ */
+MaxUSDAPI void RoundMatrixValues(Matrix3& matrix, int numberOfSignificantDigit);
+
+/**
+ * \brief return true if the provided matrix is equal to identity.
+ * \param matrix to compare against identity
+ * \param epsilon value to be used for comparision
+ * \return True if the matrix is equal to identity
+ */
+MaxUSDAPI bool
+IsIdentity(const pxr::GfMatrix4d& matrix, float epsilon = std::numeric_limits<float>::epsilon());
+
+/**
+ * \brief If the given transform matrix has non-uniform scaling. This function make it uniform by averaging the scale components.
+ * If the matrix already has uniform scaling, the function won't do anything.
+ * \param transform the transform matrix be checked and modified, if necessary.
+ * \return true if a fix was applied to the transform; false if transform was already uniform.
+ */
+MaxUSDAPI bool FixNonUniformScaling(pxr::GfMatrix4d& transform);
+
+/*
+ *	\brief std::clamp is available only C++17 and up, so for now, this function replaces it.
+ *	\param val the value to clamp
+ *	\param lo the lower boundary to clamp val to
+ *	\param hi the upper boundary to clamp val to
+ */
+template <class T> const T& clamp(const T& val, const T& lo, const T& hi)
+{
+    assert(!(hi < lo));
+    return (val < lo) ? lo : (hi < val) ? hi : val;
+};
+
+} // namespace MathUtils
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MaxProgressBar.cpp b/src/MaxUsd/Utilities/MaxProgressBar.cpp
new file mode 100644
index 0000000..876704b
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxProgressBar.cpp
@@ -0,0 +1,107 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxProgressBar.h"
+
+namespace MAXUSD_NS_DEF {
+
+MaxProgressBar::MaxProgressBar(
+    const std::wstring& title,
+    size_t              total,
+    long long           maxUpdateInterval) noexcept
+    : title { title }
+    , total { total }
+    , maxUpdateInterval { maxUpdateInterval }
+{
+    // Nothing to do.
+}
+
+MaxProgressBar::~MaxProgressBar()
+{
+    if (!isStopped) {
+        Stop();
+    }
+}
+
+void MaxProgressBar::Start()
+{
+    if (!enabled) {
+        return;
+    }
+    isStopped = false;
+    GetCOREInterface()->ProgressStart(
+        title.c_str(), TRUE, [](LPVOID arg) { return DWORD(0); }, NULL);
+    UpdateProgress(0);
+}
+
+void MaxProgressBar::Stop(bool showPct, const std::wstring& msg)
+{
+    if (!enabled) {
+        return;
+    }
+    UpdateProgress(total, false, msg);
+    GetCOREInterface()->ProgressEnd();
+    isStopped = true;
+}
+
+void MaxProgressBar::UpdateProgress(
+    size_t              currentProgress,
+    bool                showPct,
+    const std::wstring& stepName)
+{
+    if (!enabled) {
+        return;
+    }
+    if (!isStopped) {
+        // Ensure the provided total number of steps for the task is meaningful for the context of a
+        // progress bar. Since a total number of steps of "0" does not allow us to accurately inform
+        // the User about the progress of a task, this falls back to display "0%" until the task is
+        // complete.
+        //
+        // While this may not be ideal, this edge case is more meaningful than displaying "100%"
+        // until the task completes, which may lead the User to believe that the task is complete
+        // while it is actually still ongoing. Ideally, this may be better handled by an
+        // "indeterminate" progress bar with no percentage information.
+        int updatedProgressPercentage = 0;
+        if (total != 0) {
+            updatedProgressPercentage = int(currentProgress * 100 / total);
+        }
+        auto dt
+            = std::chrono::duration_cast<std::chrono::milliseconds>(clock_t::now() - lastUpdate);
+
+        // Prevent the 3ds Max UI from flickering by only updating the progress bar if the progress
+        // percentage has changed, if the step's name has changed or if the maximum update interval
+        // has been reached:
+        if (this->currentStep != stepName || updatedProgressPercentage != progressPercentage
+            || dt.count() >= maxUpdateInterval) {
+            progressPercentage = updatedProgressPercentage;
+            lastUpdate = clock_t::now();
+            this->currentStep = stepName;
+            GetCOREInterface()->ProgressUpdate(progressPercentage, showPct, stepName.c_str());
+        }
+    }
+}
+
+void MaxProgressBar::SetTotal(size_t total) { this->total = total; }
+
+bool MaxProgressBar::IsStopped() const { return isStopped; }
+
+size_t MaxProgressBar::GetTotal() { return total; }
+
+void MaxProgressBar::SetEnabled(bool enabled) { this->enabled = enabled; }
+
+bool MaxProgressBar::IsEnabled() { return enabled; }
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MaxProgressBar.h b/src/MaxUsd/Utilities/MaxProgressBar.h
new file mode 100644
index 0000000..711b26e
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxProgressBar.h
@@ -0,0 +1,136 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+#include <chrono>
+#include <maxapi.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Wrapper around the 3ds Max Progress Bar, offering convenience APIs to handle smooth UI and resource
+ * acquisition and release.
+ * \remarks This updates the 3ds Max at regular interval during the import of large USD files, in order to avoid giving
+ * the impression that 3ds Max is throttled down by lack of resources or other processes. Note that
+ * this does not update the 3ds Max progress bar outside of "tick notifications" to the wrapper
+ * object at this time. Long-running tasks with few steps might instead benefit from extending from
+ * this wrapper and schedule updates through other means.
+ */
+class MaxProgressBar
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param title Title to display on the progress bar.
+     * \param total Total number of steps that the task will require (which will be presented as a percentage to the
+     * User).
+     * \param maxUpdateInterval Maximum duration (in milliseconds) between refreshes of the UI if the percentage has
+     * not changed. This is done in order to avoid making it seems like 3ds Max's progress bar is
+     * frozen.
+     */
+    MaxProgressBar(
+        const std::wstring& title,
+        size_t              total = 1,
+        long long           maxUpdateInterval = DEFAULT_REFRESH_INTERVAL_IN_MS) noexcept;
+
+    /**
+     * \brief Destructor.
+     * \remarks This perform an RAII-style check to stop the currently ongoing progress, if it was not already manually
+     * stopped.
+     */
+    ~MaxProgressBar();
+
+    /**
+     * \brief Start the progress for the current task.
+     */
+    void Start();
+
+    /**
+     * \brief Stop the progress for the current task.
+     * \param showPct Whether or not to display the percentage (100%)
+     * \param msg Message to display in the progress bar.
+     */
+    void Stop(bool showPct = true, const std::wstring& msg = {});
+
+    /**
+     * \brief Update the progress bar to display the most recent status of the task to the User.
+     * \param currentProgress The current step of the total overall progress.
+     * \param stepName The current progress step's name, which will display in the progress bar.
+     */
+    void
+    UpdateProgress(size_t currentProgress, bool showPct = true, const std::wstring& stepName = {});
+
+    /**
+     * \brief Sets the total number of steps that the task will require
+     * \param total the Total number of steps.
+     */
+    void SetTotal(size_t total);
+
+    /**
+     * \brief Return a flag indicating if the Progress Bar is currently stopped.
+     * \return A flag indicating if the Progress Bar is currently stopped.
+     */
+    bool IsStopped() const;
+
+    /**
+     * \brief Returns the currently set total number of steps (number of steps to completion).
+     * \return Total steps.
+     */
+    size_t GetTotal();
+
+    /**
+     * \brief Set whether the progress bar is enabled or not.
+     * If disabled, calls to start, stop, and update, have no effect. Enabling or disabling
+     * mid-progress is not recommended as the max progress bar state may not be right.
+     * \param enabled True if enabled.
+     */
+    void SetEnabled(bool enabled);
+
+    /**
+     * \brief Checks if the progress bar is enabled.
+     * \return True if enabled.
+     */
+    bool IsEnabled();
+
+protected:
+    /// Type definition for the type of internal clock to use:
+    using clock_t = std::chrono::high_resolution_clock;
+    /// Type definition for the time signature to use:
+    using timestamp_t = std::chrono::time_point<clock_t>;
+    /// default progress bar refresh interval
+    static const long long DEFAULT_REFRESH_INTERVAL_IN_MS = 2000;
+
+protected:
+    /// Title to display on the 3ds Max progress bar:
+    std::wstring title;
+    /// Total number of steps of the task:
+    size_t total { 1 };
+    /// Current progress percentage of the task:
+    int progressPercentage { -1 };
+    /// The current step's name.
+    std::wstring currentStep;
+    /// Flag indicating if the task is currently stopped:
+    bool isStopped { true };
+    /// Timestamp of the last progress bar update:
+    timestamp_t lastUpdate { clock_t::now() };
+    /// Maximum time interval between successive update (in milliseconds):
+    long long maxUpdateInterval { 0 };
+    /// Flag to enable disable the progress bar.
+    bool enabled = true;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.cpp b/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.cpp
new file mode 100644
index 0000000..987f3a2
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.cpp
@@ -0,0 +1,161 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxRestrictedSupportUtils.h"
+
+#ifdef IS_MAX2023_OR_GREATER
+#include <Graphics/InstanceDisplayGeometry.h>
+#endif
+
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/matrix3.h>
+#else
+#include <matrix3.h>
+#endif
+#ifdef IS_MAX2022
+#include <Graphics/InstanceRenderGeometry.h>
+#endif
+
+namespace MaxRestrictedSDKSupport {
+
+#ifdef IS_MAX2023_OR_GREATER
+
+void Graphics::ViewportInstancing::CreateInstanceData(
+    InstanceDisplayGeometry* instanceGeometry,
+    const InstanceData&      data)
+{
+    instanceGeometry->CreateInstanceData(data);
+}
+
+void Graphics::ViewportInstancing::UpdateInstanceData(
+    InstanceDisplayGeometry* instanceGeometry,
+    const InstanceData&      data)
+{
+    instanceGeometry->UpdateInstanceData(data);
+}
+
+void Graphics::ViewportInstancing::SetInstanceDataMatrices(
+    InstanceData&         data,
+    std::vector<Matrix3>& matrices)
+{
+    data.pMatrices = matrices.data();
+}
+
+void Graphics::ViewportInstancing::ClearInstanceData(InstanceData& data)
+{
+    data.numInstances = 0;
+    data.bTransformationsAreInWorldSpace = false;
+    data.pMatrices = nullptr;
+    data.pPositions = nullptr;
+    data.pOrientationsAsPoint4 = nullptr;
+    data.numOrientationsAsPoint4 = 0;
+    data.pOrientationsAsQuat = nullptr;
+    data.numOrientationsAsQuat = 0;
+    data.pScales = nullptr;
+    data.numScales = 0;
+    data.pViewportMaterials = nullptr;
+    data.numViewportMaterials = 0;
+    data.pUVWMapChannel1 = nullptr;
+    data.numUVWMapChannel1 = 0;
+    data.pUVWMapChannel2 = nullptr;
+    data.numUVWMapChannel2 = 0;
+    data.pUVWMapChannel3 = nullptr;
+    data.numUVWMapChannel3 = 0;
+    data.pUVWMapChannel4 = nullptr;
+    data.numUVWMapChannel4 = 0;
+    data.pUVWMapChannel5 = nullptr;
+    data.numUVWMapChannel5 = 0;
+    data.pUVWMapChannel6 = nullptr;
+    data.numUVWMapChannel6 = 0;
+    data.pUVWMapChannel7 = nullptr;
+    data.numUVWMapChannel7 = 0;
+    data.pUVWMapChannel8 = nullptr;
+    data.numUVWMapChannel8 = 0;
+    data.pColors = nullptr;
+    data.numColors = 0;
+    data.pVertexColorsAsColor = nullptr;
+    data.numVertexColorsAsColor = 0;
+    data.pVertexColorsAsDWORD = nullptr;
+    data.numVertexColorsAsDWORD = 0;
+}
+
+#endif
+
+#ifdef IS_MAX2022
+void Graphics::ViewportInstancing::CreateInstanceData(
+    InstanceDisplayGeometry* instanceGeometry,
+    const InstanceData&      data)
+{
+    instanceGeometry->CreateInstanceVertexBuffer(data);
+}
+
+void Graphics::ViewportInstancing::UpdateInstanceData(
+    InstanceDisplayGeometry* instanceGeometry,
+    const InstanceData&      data)
+{
+    instanceGeometry->UpdateInstanceVertexBuffer(data);
+}
+
+void Graphics::ViewportInstancing::SetInstanceDataMatrices(
+    InstanceData&         data,
+    std::vector<Matrix3>& matrices)
+{
+    data.pMatrices = matrices.data();
+    data.numMatrices = matrices.size();
+}
+
+void Graphics::ViewportInstancing::ClearInstanceData(InstanceData& data)
+{
+    data.numInstances = 0;
+    data.bTransformationsAreInWorldSpace = false;
+    data.pMatrices = nullptr;
+    data.numMatrices = 0;
+    data.pPositions = nullptr;
+    data.numPositions = 0;
+    data.pOrientationsAsPoint4 = nullptr;
+    data.numOrientationsAsPoint4 = 0;
+    data.pOrientationsAsQuat = nullptr;
+    data.numOrientationsAsQuat = 0;
+    data.pScales = nullptr;
+    data.numScales = 0;
+    data.pViewportMaterials = nullptr;
+    data.materialStyle
+        = MaxSDK::Graphics::MaterialConversionHelper::MaterialStyles::MaterialStyle_Simple;
+    data.numViewportMaterials = 0;
+    data.pUVWMapChannel1 = nullptr;
+    data.numUVWMapChannel1 = 0;
+    data.pUVWMapChannel2 = nullptr;
+    data.numUVWMapChannel2 = 0;
+    data.pUVWMapChannel3 = nullptr;
+    data.numUVWMapChannel3 = 0;
+    data.pUVWMapChannel4 = nullptr;
+    data.numUVWMapChannel4 = 0;
+    data.pUVWMapChannel5 = nullptr;
+    data.numUVWMapChannel5 = 0;
+    data.pUVWMapChannel6 = nullptr;
+    data.numUVWMapChannel6 = 0;
+    data.pUVWMapChannel7 = nullptr;
+    data.numUVWMapChannel7 = 0;
+    data.pUVWMapChannel8 = nullptr;
+    data.numUVWMapChannel8 = 0;
+    data.pColors = nullptr;
+    data.numColors = 0;
+    data.pVertexColorsAsColor = nullptr;
+    data.numVertexColorsAsColor = 0;
+    data.pVertexColorsAsDWORD = nullptr;
+    data.numVertexColorsAsDWORD = 0;
+}
+#endif
+} // namespace MaxRestrictedSDKSupport
diff --git a/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.h b/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.h
new file mode 100644
index 0000000..75b22b9
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxRestrictedSupportUtils.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MaxSupportUtils.h"
+
+#ifdef IS_MAX2023_OR_GREATER
+#include <Graphics/InstanceDisplayGeometry.h>
+#include <Graphics/UpdateDisplayContext.h>
+#endif
+#ifdef IS_MAX2022
+#include <Graphics/InstanceRenderGeometry.h>
+#endif
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+namespace MaxRestrictedSDKSupport {
+namespace Graphics {
+namespace ViewportInstancing {
+
+#ifdef IS_MAX2023_OR_GREATER
+using InstanceDisplayGeometry = MaxSDK::Graphics::ViewportInstancing::InstanceDisplayGeometry;
+using InstanceData = MaxSDK::Graphics::ViewportInstancing::InstanceData;
+
+MaxUSDAPI void
+CreateInstanceData(InstanceDisplayGeometry* instanceGeometry, const InstanceData& data);
+MaxUSDAPI void
+UpdateInstanceData(InstanceDisplayGeometry* instanceGeometry, const InstanceData& data);
+MaxUSDAPI void SetInstanceDataMatrices(InstanceData& data, std::vector<Matrix3>& matrices);
+MaxUSDAPI void ClearInstanceData(InstanceData& data);
+#endif
+
+#ifdef IS_MAX2022
+using InstanceDisplayGeometry = MaxSDK::Graphics::InstanceRenderGeometry;
+using InstanceData = MaxSDK::Graphics::InstanceData;
+
+MaxUSDAPI void
+CreateInstanceData(InstanceDisplayGeometry* instanceGeometry, const InstanceData& data);
+MaxUSDAPI void
+UpdateInstanceData(InstanceDisplayGeometry* instanceGeometry, const InstanceData& data);
+MaxUSDAPI void SetInstanceDataMatrices(InstanceData& data, std::vector<Matrix3>& matrices);
+MaxUSDAPI void ClearInstanceData(InstanceData& data);
+#endif
+} // namespace ViewportInstancing
+} // namespace Graphics
+} // namespace MaxRestrictedSDKSupport
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MaxSupportUtils.cpp b/src/MaxUsd/Utilities/MaxSupportUtils.cpp
new file mode 100644
index 0000000..e1a5076
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxSupportUtils.cpp
@@ -0,0 +1,246 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxSupportUtils.h"
+
+#include <Graphics/MaterialConversionHelper.h>
+
+#include <modstack.h>
+#include <notify.h>
+#include <ref.h>
+
+/*
+ * This struct became available only on later 3ds Max versions.
+ */
+#if MAX_RELEASE >= 23900 && MAX_RELEASE < 25900
+struct NotifyModAddDelParam
+{
+    INode*      node;
+    Modifier*   mod;
+    ModContext* mc;
+};
+#endif
+
+/**
+ * Struct to store information about deleted modifiers.
+ * In 3ds Max, modifiers stay in memory after deletion. However, it's when checking for dependencies
+ * of a node, if a modifier has been deleted or not. This can be an issue for Writers that will need
+ * to find information on certain modifiers (SkeletonWriter, for example). In this case, it's
+ * necessary to keep a reference to the modifier that was deleted and the derived object that it
+ * was. The object will be deleted for when the 3ds Max scene is changing or when clearing the undo
+ * stack.
+ */
+class DeletedModifierInfo : public ReferenceMaker
+{
+public:
+    DeletedModifierInfo() = default;
+    ~DeletedModifierInfo() override
+    {
+        HoldSuspend hs;
+        if (this->mod) {
+            DeleteReference(0);
+        }
+        if (this->obj) {
+            DeleteReference(1);
+        }
+    }
+
+    Modifier*       mod = nullptr; // modifier reference that was deleted
+    IDerivedObject* obj = nullptr;
+    bool            postDelete
+        = false; // flag used to know if the post delete modifier event has been triggered
+
+protected:
+    // Override the ReferenceMaker
+
+    RefResult NotifyRefChanged(
+        const Interval& changeInt,
+        RefTargetHandle hTarget,
+        PartID&         partID,
+        RefMessage      message,
+        BOOL            propagate) override;
+
+    int NumRefs() override { return 2; }
+
+    RefTargetHandle GetReference(int i) override
+    {
+        switch (i) {
+        case 0: return mod;
+        case 1: return obj;
+        default: return nullptr;
+        }
+    }
+
+    void SetReference(int i, RefTargetHandle rtarg) override
+    {
+        // Pause the undo system to avoid creating undo steps for this operation
+        HoldSuspend hs;
+        switch (i) {
+        case 0: mod = dynamic_cast<Modifier*>(rtarg); break;
+        case 1: obj = dynamic_cast<IDerivedObject*>(rtarg); break;
+        default: break;
+        }
+    }
+
+    // Makes weak reference
+    BOOL IsRealDependency(ReferenceTarget* rtarg) override { return false; }
+};
+
+std::unordered_map<Modifier*, DeletedModifierInfo> deletedModifiers;
+
+RefResult DeletedModifierInfo::NotifyRefChanged(
+    const Interval& changeInt,
+    RefTargetHandle hTarget,
+    PartID&         partID,
+    RefMessage      message,
+    BOOL            propagate)
+{
+    switch (message) {
+    case REFMSG_TARGET_DELETED: {
+        // When the target being deleted is the modifier, then it can just be removed from the map.
+        // When the target is the derived object, that means the modifier is already gone the
+        // referenced needs to be cleared
+        if (hTarget == this->mod) {
+            this->mod = nullptr;
+            deletedModifiers.erase(static_cast<Modifier*>(hTarget));
+            return REF_STOP;
+        } else if (hTarget == this->obj) {
+            // This will nullify the reference maker to this object, also removing from 3ds Max
+            this->obj = nullptr;
+        }
+        break;
+    }
+    case REFMSG_MODIFIER_ADDED: {
+        if (postDelete) {
+            // For the case that the modifier that was deleted has been re-added,
+            // remove it from the map
+            if ((ReferenceTarget*)partID == this->mod) {
+                deletedModifiers.erase(this->mod);
+                return REF_STOP;
+            }
+        }
+        break;
+    }
+    default: break;
+    }
+
+    return REF_DONTCARE;
+}
+
+namespace MaxSDKSupport {
+
+const MCHAR* GetString(const MSTR& str) { return str.data(); }
+
+const MCHAR* GetString(const MCHAR* str) { return str; }
+
+bool IsModifierDeleted(Modifier* mod)
+{
+    return deletedModifiers.find(mod) != deletedModifiers.end();
+}
+
+void DeletedModifierNotifyHandler(void* param, NotifyInfo* info)
+{
+    if (!info) {
+        return;
+    }
+
+    // After the NOTIFY_PRE_MODIFIER_DELETED event, one *ADDED_MODIFIER* event is also triggered.
+    // To work around this, it's possible to use the NOTIFY_POST_MODIFIER_DELETED event. However,
+    // this event does not contain the derived object information that is needed to properly handle
+    // the modifier deletion. So, making use of both events it's possible to cache the required
+    // information to handle this case.
+    switch (info->intcode) {
+    case NOTIFY_PRE_MODIFIER_DELETED: {
+#ifdef IS_MAX2025_OR_GREATER
+        NotifyModAddDelParam* data = GetNotifyParam<NOTIFY_PRE_MODIFIER_DELETED>(info);
+#else
+        NotifyModAddDelParam* data = static_cast<NotifyModAddDelParam*>(info->callParam);
+#endif
+        if (data->mod) {
+            IDerivedObject* obj = nullptr;
+            int             idx = 0;
+            data->mod->GetIDerivedObject(data->mc, obj, idx);
+            auto& deletedModInfo = deletedModifiers[data->mod];
+
+            // Prevents those operations going into the undo stack
+            HoldSuspend hs;
+
+            deletedModInfo.postDelete = false;
+            deletedModInfo.ReplaceReference(0, data->mod);
+            deletedModInfo.ReplaceReference(1, obj);
+        }
+        break;
+    }
+    case NOTIFY_POST_MODIFIER_DELETED: {
+#ifdef IS_MAX2025_OR_GREATER
+        NotifyModAddDelParam* data = GetNotifyParam<NOTIFY_POST_MODIFIER_DELETED>(info);
+#else
+        NotifyModAddDelParam* data = static_cast<NotifyModAddDelParam*>(info->callParam);
+#endif
+        if (data->mod) {
+            auto it = deletedModifiers.find(data->mod);
+            if (it != deletedModifiers.end()) {
+                it->second.postDelete = true;
+            }
+        }
+        break;
+    }
+    default: break;
+    }
+}
+
+std::vector<int> GetMaxVersion()
+{
+    std::vector<int> version;
+
+    const TSTR buildNumberString = MaxSDK::Util::GetMaxBuildNumber();
+    int        majorVersion = 0, updateVersion = 0, hotFix = 0, buildNumber = 0;
+    if (!buildNumberString.isNull()) {
+        _stscanf(
+            buildNumberString,
+            _T("%d.%d.%d.%d"),
+            &majorVersion,
+            &updateVersion,
+            &hotFix,
+            &buildNumber);
+        version.emplace_back(majorVersion);
+        version.emplace_back(updateVersion);
+        version.emplace_back(hotFix);
+        version.emplace_back(buildNumber);
+    }
+
+    return version;
+}
+
+MaxSDK::Graphics::BaseMaterialHandle
+Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+    Mtl&      mtl,
+    TimeValue t,
+    bool      realistic)
+{
+#ifdef IS_MAX2023_OR_GREATER
+    return MaxSDK::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+        mtl, t, realistic);
+#endif
+
+#ifdef IS_MAX2022
+    return MaxSDK::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+        mtl,
+        t,
+        MaxSDK::Graphics::MaterialConversionHelper::MaterialStyles::MaterialStyle_MaterialDecide);
+#endif
+}
+
+} // namespace MaxSDKSupport
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MaxSupportUtils.h b/src/MaxUsd/Utilities/MaxSupportUtils.h
new file mode 100644
index 0000000..74cbb11
--- /dev/null
+++ b/src/MaxUsd/Utilities/MaxSupportUtils.h
@@ -0,0 +1,89 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#if MAX_RELEASE >= 27900
+#define IS_MAX_BETA
+#endif
+
+#if MAX_RELEASE >= 26900
+#define IS_MAX2025_OR_GREATER
+#endif
+
+#if MAX_RELEASE >= 25900
+#define IS_MAX2024_OR_GREATER
+#endif
+
+#if MAX_RELEASE >= 24900
+#define IS_MAX2023_OR_GREATER
+#endif
+
+#if MAX_RELEASE >= 23900 && MAX_RELEASE < 24900
+#define IS_MAX2022
+#endif
+
+#include <maxapi.h>
+#ifdef IS_MAX2025_OR_GREATER
+#include <notifyParams.h>
+#endif
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <Graphics/BaseMaterialHandle.h>
+
+#include <Materials/mtl.h>
+
+namespace MaxSDKSupport {
+
+MaxUSDAPI const MCHAR* GetString(const MSTR& str);
+MaxUSDAPI const MCHAR* GetString(const MCHAR* str);
+
+/** Callback function to handle 3ds Max's delete modifier event. */
+void DeletedModifierNotifyHandler(void* param, NotifyInfo* info);
+
+/**
+ * Modifiers Can live in memory after deletion. This function will check if the modifier has been
+ * deleted and if it's living in memory only.
+ * @param mod modifier to be checked if was deleted.
+ * @return true if the modifier has been deleted; false otherwise
+ */
+bool IsModifierDeleted(Modifier* mod);
+
+#ifdef IS_MAX2025_OR_GREATER
+using NotifyPostNodesCloned = ::NotifyPostNodesCloned;
+inline INodeTab* GetClonedNodes(NotifyPostNodesCloned* cloneInfo) { return cloneInfo->clonedNodes; }
+
+#else
+struct NotifyPostNodesCloned
+{
+    INodeTab* srcNodes;
+    INodeTab* dstNodes;
+    CloneType cloneType;
+};
+inline INodeTab* GetClonedNodes(NotifyPostNodesCloned* cloneInfo) { return cloneInfo->dstNodes; }
+#endif
+
+/// Returns the version of 3ds Max in the format {major, update, hotfix, build}
+MaxUSDAPI std::vector<int> GetMaxVersion();
+
+namespace Graphics {
+namespace MaterialConversionHelper {
+
+MaxUSDAPI MaxSDK::Graphics::BaseMaterialHandle
+          ConvertMaxToNitrousMaterial(Mtl& mtl, TimeValue t, bool /*realistic*/);
+
+}
+} // namespace Graphics
+} // namespace MaxSDKSupport
diff --git a/src/MaxUsd/Utilities/MeshUtils.cpp b/src/MaxUsd/Utilities/MeshUtils.cpp
new file mode 100644
index 0000000..b5e2c4d
--- /dev/null
+++ b/src/MaxUsd/Utilities/MeshUtils.cpp
@@ -0,0 +1,553 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MeshUtils.h"
+
+#include "MaxSupportUtils.h"
+
+#include <mesh.h>
+
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/point3.h>
+#else
+#include <point3.h>
+#endif
+
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+
+#include <MeshNormalSpec.h>
+
+namespace MAXUSD_NS_DEF {
+namespace MeshUtils {
+
+enum
+{
+    VertexColorChannel = 0,
+    UvChannel1 = 1,
+};
+
+const Point3 DEFAULT_COLOR { 0.8f, 0.8f, 0.8f };
+
+class DirectedEdge
+{
+public:
+    unsigned int v0;
+    unsigned int v1;
+    unsigned int triangleIdx;
+    unsigned int edgeIdx;
+
+    DirectedEdge(
+        unsigned int _v0,
+        unsigned int _v1,
+        unsigned int tidx = invalidIndex,
+        unsigned int eidx = invalidIndex)
+    {
+        v0 = _v0;
+        v1 = _v1;
+        triangleIdx = tidx;
+        edgeIdx = eidx;
+    }
+
+    static bool CompareWithoutTriangleIndex(const DirectedEdge& l, const DirectedEdge& r)
+    {
+        if (l.v0 == r.v0) {
+            return l.v1 < r.v1;
+        }
+        return l.v0 < r.v0;
+    }
+
+    static bool Compare(const DirectedEdge& l, const DirectedEdge& r)
+    {
+        if (l.v0 == r.v0) {
+            if (l.v1 == r.v1) {
+                if (l.triangleIdx == r.triangleIdx) {
+                    return l.edgeIdx < r.edgeIdx;
+                }
+                return l.triangleIdx < r.triangleIdx;
+            }
+            return l.v1 < r.v1;
+        }
+        return l.v0 < r.v0;
+    }
+
+    bool operator<(const DirectedEdge& r) const { return CompareWithoutTriangleIndex(*this, r); }
+
+    static const unsigned int invalidIndex = 0xffffffff;
+};
+
+void SetupEdgeVisibility(Mesh& mesh, bool fromTriNormals)
+{
+    if (!fromTriNormals) {
+        // Set all edges visible.
+        for (int i = 0; i < mesh.numFaces; ++i) {
+            for (int j = 0; j < 3; ++j) {
+                mesh.faces[i].setEdgeVis(j, EDGE_VIS);
+            }
+        }
+        return;
+    }
+
+    // Some useful lambdas..
+    auto isDegenerated = [](Face& face) {
+        auto v0 = face.getVert(0);
+        auto v1 = face.getVert(1);
+        auto v2 = face.getVert(2);
+        return v0 == v1 || v1 == v2 || v2 == v0;
+    };
+
+    auto computeNormal = [](Mesh& mesh, Face& face) {
+        Point3 e0 = mesh.verts[face.getVert(1)] - mesh.verts[face.getVert(0)];
+        Point3 e1 = mesh.verts[face.getVert(2)] - mesh.verts[face.getVert(0)];
+        return (e0 ^ e1).Normalize();
+    };
+
+    // The basic idea is to look for shared edges between triangles. If the triangles are not
+    // coplanar or do not share the same material, show the edge.
+    std::vector<DirectedEdge> orderedEdges;
+    const auto                numFaces = mesh.getNumFaces();
+    orderedEdges.reserve(numFaces * 3);
+    for (int i = 0; i < numFaces; ++i) {
+        orderedEdges.emplace_back(mesh.faces[i].getVert(0), mesh.faces[i].getVert(1), i, 0);
+        orderedEdges.emplace_back(mesh.faces[i].getVert(1), mesh.faces[i].getVert(2), i, 1);
+        orderedEdges.emplace_back(mesh.faces[i].getVert(2), mesh.faces[i].getVert(0), i, 2);
+    }
+    std::sort(orderedEdges.begin(), orderedEdges.end(), DirectedEdge::Compare);
+
+    for (const auto& currentEdge : orderedEdges) {
+        // Fetch the related triangle
+        Face& currentTriangle = mesh.faces[currentEdge.triangleIdx];
+
+        // Skip the triangle if its degenerated.
+        if (isDegenerated(currentTriangle)) {
+            continue;
+        }
+
+        // Look for edges with the opposite vertex order. These are the edges from triangles
+        // adjacent to currentTriangle and facing the same direction Edges sharing the same vertex
+        // order belong to triangles facing the other way (opposite winding).
+        DirectedEdge invertedEdge(currentEdge.v1, currentEdge.v0);
+        auto         range = std::equal_range(
+            orderedEdges.begin(),
+            orderedEdges.end(),
+            invertedEdge,
+            DirectedEdge::CompareWithoutTriangleIndex);
+
+        bool markVisible = true;
+        bool isMaterialBoundary = true;
+
+        for (auto adjacentEdge = range.first; adjacentEdge != range.second; ++adjacentEdge) {
+            Face& adjacentTriangle = mesh.faces[adjacentEdge->triangleIdx];
+
+            // On non-manifold meshes, if at least two of the N triangles adjacent to that
+            // edge have a continuous material, do not consider this edge as a boundary.
+            if (currentTriangle.getMatID() == adjacentTriangle.getMatID()) {
+                isMaterialBoundary = false;
+            }
+
+            // Do not show edges between coplanar triangles if they share the same surface Ids.
+            const bool coplanar
+                = (computeNormal(mesh, currentTriangle) % computeNormal(mesh, adjacentTriangle))
+                >= (1 - FLT_EPSILON);
+            if (coplanar && !isMaterialBoundary) {
+                markVisible = false;
+            }
+        }
+        if (markVisible) {
+            const auto edge
+                = mesh.faces[currentEdge.triangleIdx].GetEdgeIndex(currentEdge.v0, currentEdge.v1);
+            mesh.faces[currentEdge.triangleIdx].setEdgeVis(edge, EDGE_VIS);
+        }
+    }
+}
+
+bool ToRenderMesh(
+    const UsdRenderGeometry&                                 usdGeometry,
+    Mesh&                                                    mesh,
+    const MaxUsd::PrimvarMappingOptions&                     primvarMappingOpts,
+    pxr::TfHashSet<pxr::TfToken, pxr::TfToken::HashFunctor>& unmappedPrimvars)
+{
+    // Make sure the subsets are well defined. Each needs topology, mapped data and a material ids,
+    // so all those arrays should have matching sizes.
+    if (usdGeometry.subsetTopoIndices.size() != usdGeometry.subsetPrimvarIndices.size()
+        || usdGeometry.subsetTopoIndices.size() != usdGeometry.materialIds.size()) {
+        return false;
+    }
+
+    // Figure out the number of faces that we will need in the output mesh. It is an
+    // aggregate of the faces of all the subset geometries.
+    const auto numFaces = std::accumulate(
+        usdGeometry.subsetTopoIndices.begin(),
+        usdGeometry.subsetTopoIndices.end(),
+        0,
+        [](int total, const pxr::VtVec3iArray& subset) {
+            return total + static_cast<int>(subset.size());
+        });
+    mesh.setNumFaces(numFaces);
+
+    const bool hasVertexColors = !usdGeometry.colors.empty();
+
+    // Always setup vertex colors. Will be used as fallback for render if no material is bound.
+    mesh.setMapSupport(VertexColorChannel);
+    mesh.Map(VertexColorChannel).setNumFaces(numFaces);
+
+    // Initialize the required channels : UVs, Vertex Colors and Normals.
+
+    // Figure out what UV primvars we will actually load into the render mesh.
+    // Build a vector of pairs..
+    //   first = Index in usdGeometry.uvs
+    //   second = The target 3dsMax channel for that primvar
+    std::vector<std::pair<int, int>> uvPrimvarsToLoad;
+    for (int i = 0; i < usdGeometry.uvs.size(); ++i) {
+        const auto& uvChannel = usdGeometry.uvs[i];
+        // No data... skip.
+        if (uvChannel.data.empty()) {
+            continue;
+        }
+        // Skip any auto-generated/fallback UVs that do not originate from a primvar.
+        const auto primvarName = uvChannel.varname;
+        if (primvarName.IsEmpty()) {
+            continue;
+        }
+
+        // Is that primvar mapped to a channel? If not, skip, but keep track of this information
+        // as it may be important for the caller to know.
+        const auto channel = primvarMappingOpts.GetPrimvarChannelMapping(primvarName.GetString());
+        if (channel == PrimvarMappingOptions::invalidChannel) {
+            unmappedPrimvars.insert(uvChannel.varname);
+            continue;
+        }
+
+        if (channel < 1) {
+            continue;
+        }
+
+        // This primvar will be loaded into the render mesh, keep the channel mapping info for
+        // later, and setup the channel.
+        uvPrimvarsToLoad.push_back({ i, channel });
+        mesh.setMapSupport(channel);
+        mesh.Map(channel).setNumFaces(numFaces);
+    }
+
+    MeshNormalSpec* specNormals = nullptr;
+    if (!usdGeometry.normals.empty()) {
+        mesh.SpecifyNormals();
+        specNormals = mesh.GetSpecifiedNormals();
+        specNormals->SetNumFaces(numFaces);
+    }
+
+    int currentFace = 0;
+
+    // Join all the faces from each subsets.
+    for (int subsetIndex = 0; subsetIndex < usdGeometry.subsetTopoIndices.size(); ++subsetIndex) {
+        const auto& pointIndices = usdGeometry.subsetTopoIndices[subsetIndex];
+        const auto& primvarIndices = usdGeometry.subsetPrimvarIndices[subsetIndex];
+
+        // Index/tri counts should always match.
+        if (pointIndices.size() != primvarIndices.size()) {
+            return false;
+        }
+
+        for (int i = 0; i < pointIndices.size(); ++i) {
+            const auto v1 = pointIndices[i][0];
+            const auto v2 = pointIndices[i][1];
+            const auto v3 = pointIndices[i][2];
+
+            mesh.faces[currentFace].setVerts(v1, v2, v3);
+            mesh.faces[currentFace].setMatID(usdGeometry.materialIds[subsetIndex]);
+
+            const auto pv1 = primvarIndices[i][0];
+            const auto pv2 = primvarIndices[i][1];
+            const auto pv3 = primvarIndices[i][2];
+
+            // With the data coming from Nitrous, we know indices are the same
+            // for all the channels.
+            for (const auto& pvChannel : uvPrimvarsToLoad) {
+                mesh.Map(pvChannel.second).tf[currentFace].setTVerts(pv1, pv2, pv3);
+            }
+
+            if (hasVertexColors) {
+                mesh.Map(VertexColorChannel).tf[currentFace].setTVerts(pv1, pv2, pv3);
+            } else {
+                // If no displayColor, we will setup a vertex color array with a single entry,
+                // filled with gray.
+                mesh.Map(VertexColorChannel).tf[currentFace].setTVerts(0, 0, 0);
+            }
+
+            if (specNormals) {
+                MeshNormalFace& face = specNormals->Face(currentFace);
+                face.SetNormalID(0, pv1);
+                face.SetNormalID(1, pv2);
+                face.SetNormalID(2, pv3);
+                face.SpecifyAll();
+            }
+            currentFace++;
+        }
+    }
+
+    // Now copy the vertex buffers...
+    const auto& points = usdGeometry.points;
+    const auto  numVerts = points.size();
+    mesh.setNumVerts(static_cast<int>(numVerts));
+    std::copy_n(
+        reinterpret_cast<const Point3*>(points.cdata()),
+        numVerts,
+        static_cast<Point3*>(mesh.verts));
+
+    if (specNormals) {
+        const auto& normals = usdGeometry.normals;
+        const auto  numNormals = static_cast<int>(normals.size());
+        specNormals->SetNumNormals(numNormals);
+        std::copy_n(
+            reinterpret_cast<const Point3*>(normals.cdata()),
+            numNormals,
+            specNormals->GetNormalArray());
+        specNormals->SetAllExplicit();
+    }
+
+    for (const auto& entry : uvPrimvarsToLoad) {
+        const auto  idx = entry.first;
+        const auto& uvs = usdGeometry.uvs[idx].data;
+        const auto  numUvs = static_cast<int>(uvs.size());
+        const auto  channel = entry.second;
+        mesh.Map(channel).setNumVerts(numUvs);
+        std::copy_n(reinterpret_cast<const Point3*>(uvs.cdata()), numUvs, mesh.Map(channel).tv);
+        for (int j = 0; j < numUvs; ++j) {
+            // Adjust UV coordinate convention.
+            mesh.Map(channel).tv[j].y = 1 - mesh.Map(channel).tv[j].y;
+        }
+    }
+
+    if (hasVertexColors) {
+        const auto& vcs = usdGeometry.colors;
+        const auto  numVcs = static_cast<int>(vcs.size());
+        mesh.Map(VertexColorChannel).setNumVerts(numVcs);
+        std::copy_n(
+            reinterpret_cast<const Point3*>(vcs.cdata()), numVcs, mesh.Map(VertexColorChannel).tv);
+    } else {
+        // Default to gray. Only need a single entry.
+        mesh.Map(VertexColorChannel).setNumVerts(1);
+        mesh.Map(VertexColorChannel).tv[0] = DEFAULT_COLOR;
+    }
+
+    // Delete any unsused vertices.
+    mesh.DeleteIsoVerts();
+
+    // Set all edges to visible. Some renderers don't always handle well hidden edges (for example,
+    // Arnold does not like hidden edge between non-coplanar triangles.
+    SetupEdgeVisibility(mesh, false);
+
+    return true;
+}
+
+void AttachAll(
+    std::vector<std::shared_ptr<Mesh>> meshes,
+    std::vector<Matrix3>               transforms,
+    Mesh&                              attachedMesh)
+{
+    if (meshes.empty()) {
+        return;
+    }
+
+    // Figure the total faces/vertices count we will need.
+    int totalFaceCount = 0;
+    int totalVertCount = 0;
+    // For uvs, we can have mulitple channels.
+    // Store the uv counts for each channel in this map (map channel -> count)
+    std::unordered_map<unsigned short, int> uvCounts;
+    int                                     totalColorCount = 0;
+    int                                     totalNormalCount = 0;
+
+    for (int i = 0; i < meshes.size(); ++i) {
+        totalFaceCount += meshes[i]->getNumFaces();
+        totalVertCount += meshes[i]->getNumVerts();
+
+        const auto meshSpecNormal = meshes[i]->GetSpecifiedNormals();
+        if (meshSpecNormal) {
+            totalNormalCount += meshSpecNormal->GetNumNormals();
+        }
+
+        // Figure out the number of UV verts, from each supported map channel.
+        for (unsigned short channelIdx = 1; channelIdx < MAX_MESHMAPS; ++channelIdx) {
+            if (meshes[i]->mapSupport(channelIdx)) {
+                uvCounts[channelIdx] += meshes[i]->Map(channelIdx).getNumVerts();
+            }
+        }
+
+        if (meshes[i]->mapSupport(VertexColorChannel)) {
+            totalColorCount += meshes[i]->Map(VertexColorChannel).getNumVerts();
+        } else {
+            // Falls back to a plain color for every vertex.
+            totalColorCount += meshes[i]->numVerts;
+        }
+    }
+
+    // Allocate face and vertex buffers for the topology, normals, UVs and vertex colors as needed.
+    attachedMesh.setNumFaces(totalFaceCount);
+    attachedMesh.setNumVerts(totalVertCount);
+
+    // Setup the normals for the attached mesh.
+    attachedMesh.SpecifyNormals();
+    const auto fullSpecNormals = attachedMesh.GetSpecifiedNormals();
+    fullSpecNormals->SetNumFaces(totalFaceCount);
+    fullSpecNormals->SetNumNormals(totalNormalCount);
+
+    // Setup vertex colors for the attached mesh. Typically, vertex colors (from USD displayColors)
+    // are used as fallback for rendering, if no material is bound.
+    attachedMesh.setMapSupport(VertexColorChannel);
+    auto& vcs = attachedMesh.Map(VertexColorChannel);
+    vcs.setNumFaces(totalFaceCount);
+    vcs.setNumVerts(totalColorCount);
+
+    // If we have some UVs, setup UVs in the attached mesh.
+    for (auto uv : uvCounts) {
+        const auto channel = uv.first;
+        const auto numUvs = uv.second;
+        attachedMesh.setMapSupport(channel);
+        // Default to planar mapping in case of missing data.
+        attachedMesh.MakeMapPlanar(channel);
+        auto& uvs = attachedMesh.Map(channel);
+        uvs.setNumFaces(totalFaceCount);
+        uvs.setNumVerts(numUvs);
+    }
+
+    // Now copy the meshes' buffers.
+
+    // The index of the first face for the next mesh to copy.
+    int firstFaceIndex = 0;
+    // The vertex index offset to apply for this mesh. We need to offset by the total number
+    // of vertices of the meshes previously attached.
+    int vertsOffset = 0;
+    int normalsOffset = 0;
+    // We can have multiple uv channels, store offsets per-channel in this map (channel->offset)
+    std::unordered_map<unsigned short, int> uvsOffsets;
+    int                                     colorsOffset = 0;
+
+    // Simple lambda to copy a map channel's data to a destination channel with the offset described
+    // above.
+    auto copyMap = [](MeshMap& map, MeshMap& destination, int vertsOffset, int firstFaceIndex) {
+        std::transform(
+            map.tf,
+            map.tf + map.getNumFaces(),
+            destination.tf + firstFaceIndex,
+            [&vertsOffset](TVFace& uvFace) {
+                TVFace f;
+                f.t[0] = uvFace.t[0] + vertsOffset;
+                f.t[1] = uvFace.t[1] + vertsOffset;
+                f.t[2] = uvFace.t[2] + vertsOffset;
+                return f;
+            });
+        std::copy(map.tv, map.tv + map.getNumVerts(), destination.tv + vertsOffset);
+    };
+
+    for (int i = 0; i < meshes.size(); ++i) {
+        // Faces.
+        std::transform(
+            static_cast<Face*>(meshes[i]->faces),
+            static_cast<Face*>(meshes[i]->faces) + meshes[i]->numFaces,
+            static_cast<Face*>(attachedMesh.faces) + firstFaceIndex,
+            [&vertsOffset](Face& face) {
+                Face f;
+                f.v[0] = face.v[0] + vertsOffset;
+                f.v[1] = face.v[1] + vertsOffset;
+                f.v[2] = face.v[2] + vertsOffset;
+
+                f.setEdgeVis(0, face.getEdgeVis(0));
+                f.setEdgeVis(1, face.getEdgeVis(1));
+                f.setEdgeVis(2, face.getEdgeVis(2));
+
+                f.setMatID(face.getMatID());
+                return f;
+            });
+
+        // Verts.
+        std::copy(
+            static_cast<Point3*>(meshes[i]->verts),
+            static_cast<Point3*>(meshes[i]->verts) + meshes[i]->numVerts,
+            static_cast<Point3*>(attachedMesh.verts) + vertsOffset);
+        transforms[i].TransformPoints(attachedMesh.verts + vertsOffset, meshes[i]->numVerts);
+        vertsOffset += meshes[i]->numVerts;
+
+        for (const auto& uv : uvCounts) {
+            const auto channel = uv.first;
+            auto&      uvs = attachedMesh.Map(channel);
+            if (meshes[i]->mapSupport(channel)) {
+                auto& map = meshes[i]->Map(channel);
+                copyMap(map, uvs, uvsOffsets[channel], firstFaceIndex);
+                uvsOffsets[channel] += map.getNumVerts();
+            }
+        }
+
+        auto& colors = attachedMesh.Map(VertexColorChannel);
+        if (meshes[i]->mapSupport(VertexColorChannel)) {
+            auto& map0 = meshes[i]->Map(VertexColorChannel);
+            copyMap(map0, colors, colorsOffset, firstFaceIndex);
+            colorsOffset += map0.getNumVerts();
+        } else {
+            // This mesh has no vertex colors but the aggregate mesh overall does, so just fill up
+            // with a default gray color.
+            std::transform(
+                static_cast<Face*>(meshes[i]->faces),
+                static_cast<Face*>(meshes[i]->faces) + meshes[i]->numFaces,
+                colors.tf + firstFaceIndex,
+                [&colorsOffset](Face& face) {
+                    TVFace f;
+                    f.t[0] = face.v[0] + colorsOffset;
+                    f.t[1] = face.v[1] + colorsOffset;
+                    f.t[2] = face.v[2] + colorsOffset;
+                    return f;
+                });
+            std::fill(
+                colors.tv + colorsOffset,
+                colors.tv + colorsOffset + meshes[i]->numVerts,
+                DEFAULT_COLOR);
+            colorsOffset += meshes[i]->numVerts;
+        }
+
+        const auto meshSpecNormal = meshes[i]->GetSpecifiedNormals();
+        if (meshSpecNormal) {
+            // Normal faces.
+            std::transform(
+                meshSpecNormal->GetFaceArray(),
+                meshSpecNormal->GetFaceArray() + meshSpecNormal->GetNumFaces(),
+                fullSpecNormals->GetFaceArray() + firstFaceIndex,
+                [&normalsOffset](MeshNormalFace& normalFace) {
+                    MeshNormalFace f = normalFace;
+                    f.SetNormalID(0, normalFace.GetNormalID(0) + normalsOffset);
+                    f.SetNormalID(1, normalFace.GetNormalID(1) + normalsOffset);
+                    f.SetNormalID(2, normalFace.GetNormalID(2) + normalsOffset);
+                    return f;
+                });
+            // Normals.
+            std::copy(
+                meshSpecNormal->GetNormalArray(),
+                meshSpecNormal->GetNormalArray() + meshSpecNormal->GetNumNormals(),
+                fullSpecNormals->GetNormalArray() + normalsOffset);
+            for (int idx = normalsOffset; idx < normalsOffset + meshSpecNormal->GetNumNormals();
+                 ++idx) {
+                const auto allNormals = fullSpecNormals->GetNormalArray();
+                allNormals[idx] = VectorTransform(transforms[i], allNormals[idx]);
+
+                const float lenSq = LengthSquared(allNormals[idx]);
+                if (lenSq && (lenSq != 1.0f)) {
+                    allNormals[idx] /= std::sqrt(lenSq);
+                };
+            }
+            normalsOffset += meshSpecNormal->GetNumNormals();
+        }
+        firstFaceIndex += meshes[i]->numFaces;
+    }
+}
+} // namespace MeshUtils
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/MeshUtils.h b/src/MaxUsd/Utilities/MeshUtils.h
new file mode 100644
index 0000000..c7bd9f7
--- /dev/null
+++ b/src/MaxUsd/Utilities/MeshUtils.h
@@ -0,0 +1,86 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <Mesh.h>
+
+namespace MAXUSD_NS_DEF {
+
+class PrimvarMappingOptions;
+
+namespace MeshUtils {
+
+/**
+ * \brief This function sets up the edge visibility to ensure safe conversion to polygonal meshes.
+ * \param mesh The mesh for which to adjust edge visibility.
+ * \param fromTriNormals If true, makes sure that all edges which are between triangles which are not coplanar
+ * are visible. Edges at material boundaries are also made visible. If false, all edges are made
+ * visible.
+ */
+MaxUSDAPI void SetupEdgeVisibility(Mesh& mesh, bool fromTriNormals);
+
+struct UvChannel
+{
+    pxr::TfToken      varname;
+    pxr::VtVec3fArray data;
+};
+
+// A struct holding a triangulated USD geometry. It is assumed that all mapped data (primvars)
+// shares the same indices.
+struct UsdRenderGeometry
+{
+    // The mesh's triangle indices for each subset (need one subset per bound material).
+    std::vector<pxr::VtVec3iArray> subsetTopoIndices;
+    // The primvar data indices for each subset : normals, uv and vertex color.
+    std::vector<pxr::VtVec3iArray> subsetPrimvarIndices;
+    pxr::VtVec3fArray              points;
+    pxr::VtVec3fArray              normals;
+    std::vector<UvChannel>         uvs;
+    pxr::VtVec3fArray              colors;
+    // Material ids associated with each subset.
+    std::vector<int> materialIds;
+};
+
+/**
+ * \brief Converts USD render geometry, to a 3dsMax Mesh, meant for rendering.
+ * \param usdGeom The USD geometry to convert.
+ * \param mesh The output mesh.
+ * \param primvarMappingOpts Primvar to channel mapping options.
+ * \param unmappedPrimvar Output set of primvars which are not mapped to a channel, and so missing from the resulting mesh.
+ * \return True if the conversion to a render mesh was sucessful, false otherwise.
+ */
+MaxUSDAPI bool ToRenderMesh(
+    const UsdRenderGeometry&                                 usdGeom,
+    Mesh&                                                    mesh,
+    const MaxUsd::PrimvarMappingOptions&                     primvarMappingOpts,
+    pxr::TfHashSet<pxr::TfToken, pxr::TfToken::HashFunctor>& unmappedPrimvars);
+
+/**
+ * \brief Efficiently attaches all the passes meshes, at the given offsets.
+ * \param meshes The meshes to attach. NOTE : this is not a generalized function, it is specifically meant to work
+ * on meshes built via MeshUtils::ToRenderMesh.
+ * \param transforms The offset transform for each meshes.
+ * \param attachedMesh The output, attached mesh.
+ */
+MaxUSDAPI void AttachAll(
+    std::vector<std::shared_ptr<Mesh>> meshes,
+    std::vector<Matrix3>               transforms,
+    Mesh&                              attachedMesh);
+
+} // namespace MeshUtils
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MetaDataUtils.cpp b/src/MaxUsd/Utilities/MetaDataUtils.cpp
new file mode 100644
index 0000000..715251e
--- /dev/null
+++ b/src/MaxUsd/Utilities/MetaDataUtils.cpp
@@ -0,0 +1,235 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MetaDataUtils.h"
+
+#include "TranslationUtils.h"
+
+namespace MAXUSD_NS_DEF {
+namespace MetaData {
+
+IMetaDataManager::MetaDataID
+GetOrDefineUsdBuiltInMetaData(const std::vector<UsdMetaDataType>& metaDataIds)
+{
+    if (metaDataIds.empty()) {
+        return EmptyMetaDataID;
+    }
+
+    static std::map<std::string, IMetaDataManager::MetaDataID> cache;
+    std::vector<UsdMetaDataType>                               sortedMetaDataIds = metaDataIds;
+    std::sort(sortedMetaDataIds.begin(), sortedMetaDataIds.end());
+    std::string hashKey = std::accumulate(
+        sortedMetaDataIds.begin(),
+        sortedMetaDataIds.end(),
+        std::string(""),
+        [](const std::string& s, UsdMetaDataType type) {
+            return s + "|" + std::to_string(static_cast<int>(type));
+        });
+    const auto it = cache.find(hashKey);
+    if (it != cache.end()) {
+        return it->second;
+    }
+
+    IMetaDataManager*                      maxMetaDataManager = IMetaDataManager::GetInstance();
+    Tab<IMetaDataManager::ParamDescriptor> tabParams;
+
+    for (const auto& id : metaDataIds) {
+        auto def = GetUsdMetaDataDef(id);
+        tabParams.Append(1, &def.usdMetaDataParamDef);
+    }
+
+    TSTR                         errMsg = nullptr;
+    IMetaDataManager::MetaDataID usdBuiltInMetaData
+        = maxMetaDataManager->CreateMetaDataDefinition(_T("USD"), _T("USD"), tabParams, &errMsg);
+    if (usdBuiltInMetaData == EmptyMetaDataID) {
+        MaxUsd::Log::Error(
+            L"Could not define built-in USD Metadata object, errorMsg: {0}", std::wstring(errMsg));
+    }
+    cache.insert({ hashKey, usdBuiltInMetaData });
+    return usdBuiltInMetaData;
+}
+
+IParamBlock2* FindUsdCustomAttributeParamBlock(Animatable* baseObject)
+{
+    // loop through all CA to find one that contains a parameter name with usd prefix
+    // we don't use `IMetaDataManager::GetInstance()->GetAllMetaData` so that we can
+    // also detect manually added Custom Attributes via Parameter Editor or maxscript
+    ICustAttribContainer* caContainer = baseObject->GetCustAttribContainer();
+    if (!caContainer) {
+        // no CA was attached to this object
+        return nullptr;
+    }
+
+    for (int i = 0; i < caContainer->GetNumCustAttribs(); i++) {
+        CustAttrib* ca = caContainer->GetCustAttrib(i);
+        if (!ca) {
+            continue;
+        }
+        MSCustAttrib* msCA = (MSCustAttrib*)ca->GetInterface(I_SCRIPTEDCUSTATTRIB);
+        if (!msCA) {
+            continue;
+        }
+
+        if (ca->NumParamBlocks() < 1) {
+            continue;
+        }
+
+        IParamBlock2* pb2 = ca->GetParamBlock(0);
+        if (!pb2) {
+            continue;
+        }
+
+        for (int paramIndex = 0; paramIndex < pb2->NumParams(); paramIndex++) {
+            const ParamDef* paramDef = pb2->GetParamDefByIndex(paramIndex);
+            TSTR            name = pb2->GetLocalName(paramDef->ID);
+
+            if (name.StartsWith(_T("usd_"), false)) {
+                return pb2;
+            }
+        }
+    }
+
+    return nullptr;
+}
+
+bool CheckForConflict(Object* obj1, Object* obj2, const TimeValue& t)
+{
+    IParamBlock2* pb1 = MaxUsd::MetaData::FindUsdCustomAttributeParamBlock(obj1);
+    IParamBlock2* pb2 = MaxUsd::MetaData::FindUsdCustomAttributeParamBlock(obj2);
+
+    if (pb1 == pb2) {
+        return false;
+    }
+
+    if (pb1 == nullptr || pb2 == nullptr) {
+        return false;
+    }
+
+    int nbParam1 = pb1->NumParams();
+    int nbParam2 = pb2->NumParams();
+
+    std::unordered_set<ParamID> listOfParamIdToCompare;
+    for (int i = 0; i < nbParam1; ++i) {
+        listOfParamIdToCompare.emplace(pb1->IndextoID(i));
+    }
+
+    for (int i = 0; i < nbParam2; ++i) {
+        listOfParamIdToCompare.emplace(pb2->IndextoID(i));
+    }
+
+    for (auto it = listOfParamIdToCompare.begin(); it != listOfParamIdToCompare.end(); ++it) {
+        const ParamID   paramId = *it;
+        const ParamDef& paramDef = pb1->GetParamDef(paramId);
+        Interval        valid = FOREVER;
+        switch (paramDef.type) {
+        case TYPE_INT:
+            int intValue1;
+            int intValue2;
+            if (pb1->GetValue(paramId, t, intValue1, valid)
+                && pb2->GetValue(paramId, t, intValue2, valid)) {
+                if (intValue1 != intValue2) {
+                    return true;
+                }
+            }
+            break;
+        case TYPE_FLOAT:
+            float floatValue1;
+            float floatValue2;
+            if (pb1->GetValue(paramId, t, floatValue1, valid)
+                && pb2->GetValue(paramId, t, floatValue2, valid)) {
+                if (floatValue1 != floatValue2) {
+                    return true;
+                }
+            }
+            break;
+        case TYPE_BOOL:
+            BOOL boolValue1;
+            BOOL boolValue2;
+            if (pb1->GetValue(paramId, t, boolValue1, valid)
+                && pb2->GetValue(paramId, t, boolValue2, valid)) {
+                if (boolValue1 != boolValue2) {
+                    return true;
+                }
+            }
+            break;
+        case TYPE_STRING:
+            const wchar_t* value1;
+            const wchar_t* value2;
+            if (pb1->GetValue(paramId, t, value1, valid)
+                && pb2->GetValue(paramId, t, value2, valid)) {
+                if (wcscmp(value1, value2) != 0) {
+                    return true;
+                }
+            }
+            break;
+        default:
+            // unhandled type that was not implemented
+            DbgAssert(_T("Unhandled customattribute data type"));
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool GetUsdMetaDataValue(
+    IParamBlock2*          pb2,
+    const UsdMetaDataType& metaDataType,
+    const TimeValue&       t,
+    ParameterValue&        valueHolder)
+{
+    UsdMetaDataDef metaDataDef = GetUsdMetaDataDef(metaDataType);
+    ParamID        paramId = MaxUsd::FindParamId(pb2, metaDataDef.usdMetaDataKey);
+    // If this specific USD metadata doesn't exist in the PB we are done!
+    if (paramId == -1) {
+        return false;
+    }
+    const ParamDef& paramDef = pb2->GetParamDef(paramId);
+    if (paramDef.type != metaDataDef.usdMetaDataParamDef.m_dataType) {
+        // parameter found but type is different than expected
+        MaxUsd::Log::Warn(
+            L"USD Metadata '{0}' found but got different type actual:{1} expected:{2}",
+            metaDataDef.usdMetaDataKey,
+            static_cast<int>(paramDef.type),
+            static_cast<int>(metaDataDef.usdMetaDataParamDef.m_dataType));
+        return false;
+    }
+
+    Interval       iv = FOREVER;
+    bool           hasFoundParam = false;
+    int            boolVal = 0;
+    const wchar_t* strVal = L"";
+    switch (metaDataDef.usdMetaDataParamDef.m_dataType) {
+    case TYPE_INT: hasFoundParam = pb2->GetValue(paramId, t, valueHolder.intValue, iv); break;
+    case TYPE_BOOL:
+        hasFoundParam = pb2->GetValue(paramId, t, boolVal, iv);
+        valueHolder.boolValue = (boolVal == 0) ? false : true;
+        break;
+    case TYPE_STRING:
+        hasFoundParam = pb2->GetValue(paramId, t, strVal, iv);
+        if (strVal) {
+            valueHolder.strValue = std::wstring(strVal);
+        }
+        break;
+    default:
+        // unhandled type that was not implemented
+        DbgAssert(_T("Unhandled customattribute data type"));
+        break;
+    }
+    return hasFoundParam;
+}
+
+} // namespace MetaData
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MetaDataUtils.h b/src/MaxUsd/Utilities/MetaDataUtils.h
new file mode 100644
index 0000000..14e1b85
--- /dev/null
+++ b/src/MaxUsd/Utilities/MetaDataUtils.h
@@ -0,0 +1,140 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "Logging.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <maxscript/mxsplugin/mxsCustomAttributes.h>
+
+#include <IMetaData.h>
+#include <iparamb2.h>
+
+namespace MAXUSD_NS_DEF {
+namespace MetaData {
+
+static const wchar_t* USD_KIND = L"usd_kind";
+static const wchar_t* USD_PURPOSE = L"usd_purpose";
+static const wchar_t* USD_HIDDEN = L"usd_hidden";
+
+enum UsdMetaDataType
+{
+    // NOTE: usdMetaDataDefMap needs to be updated for each new entry
+    Kind,
+    Purpose,
+    Hidden
+};
+
+struct UsdMetaDataDef
+{
+    UsdMetaDataType                   usdMetaData;
+    const wchar_t*                    usdMetaDataKey;
+    IMetaDataManager::ParamDescriptor usdMetaDataParamDef;
+};
+
+// can be used to hold multiple types of data to be stored
+// in paramblocks
+struct ParameterValue
+{
+    int          intValue = 0;
+    bool         boolValue = false;
+    std::wstring strValue;
+};
+
+static UsdMetaDataDef CreateUsdKindMetaDataDef()
+{
+    IMetaDataManager::ParamDescriptor metaDataParamDef;
+    metaDataParamDef.m_name = USD_KIND;
+    metaDataParamDef.m_dataType = TYPE_STRING;
+    metaDataParamDef.m_ctrlType = TYPE_EDITBOX;
+    metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+
+    return UsdMetaDataDef { UsdMetaDataType::Kind, USD_KIND, metaDataParamDef };
+}
+
+static UsdMetaDataDef CreateUsdPurposeMetaDataDef()
+{
+    IMetaDataManager::ParamDescriptor metaDataParamDef;
+    metaDataParamDef.m_name = USD_PURPOSE;
+    metaDataParamDef.m_dataType = TYPE_STRING;
+    metaDataParamDef.m_ctrlType = TYPE_EDITBOX;
+    metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+
+    return UsdMetaDataDef { UsdMetaDataType::Purpose, USD_PURPOSE, metaDataParamDef };
+}
+
+static UsdMetaDataDef CreateUsdHiddenMetaDataDef()
+{
+    IMetaDataManager::ParamDescriptor metaDataParamDef;
+    metaDataParamDef.m_name = USD_HIDDEN;
+    metaDataParamDef.m_dataType = static_cast<ParamType2>(TYPE_BOOL);
+    metaDataParamDef.m_ctrlType = static_cast<ControlType2>(TYPE_SINGLECHECKBOX);
+    metaDataParamDef.m_ctrlAlign = IMetaDataManager::ControlAlign::eAlignLeft;
+    return UsdMetaDataDef { UsdMetaDataType::Hidden, USD_HIDDEN, metaDataParamDef };
+}
+
+// this mapping needs to be updated every time we add a new property to be round-tripped
+static std::map<UsdMetaDataType, UsdMetaDataDef> usdMetaDataDefMap {
+    { UsdMetaDataType::Kind, CreateUsdKindMetaDataDef() },
+    { UsdMetaDataType::Purpose, CreateUsdPurposeMetaDataDef() },
+    { UsdMetaDataType::Hidden, CreateUsdHiddenMetaDataDef() }
+};
+
+static const UsdMetaDataDef& GetUsdMetaDataDef(UsdMetaDataType id) { return usdMetaDataDefMap[id]; }
+
+/**
+ * \brief retrieves usd metadata stored as custom attribute in max
+ * \param valueHolder output value will be written in this object
+ * \return bool false if parameter does not exist or paramType is different from what was expected
+ */
+MaxUSDAPI bool GetUsdMetaDataValue(
+    IParamBlock2*          pb2,
+    const UsdMetaDataType& metaDataType,
+    const TimeValue&       t,
+    ParameterValue&        valueHolder);
+
+/**
+ * \brief we use IMetaDataManager to attach metadata/customAttributes to BaseObject.
+ * Since our properties are dynamic i.e some BaseObject might have none, others might
+ * only have one or two or all, we don't base ourselves on MetaDataID. But we simply
+ * find the first ParamBlock that contains a Parameter with 'usd_' as prefix.
+ * \param baseObject should be the BaseObject of the node in max
+ * \return IParamBlock* pb2 containing usd custom attributes or nullptr if could not find.
+ */
+MaxUSDAPI IParamBlock2* FindUsdCustomAttributeParamBlock(Animatable* baseObject);
+
+/**
+ * \brief This function retrieves or define the MetaDataID that represents the structure
+ * we use to store the USD Built-in metadata such as Hidden, Purpose, Kind etc...
+ * MetaDataID will be different based on the properties we want to support
+ * \param metaDataIds list of all UsdMetaDataType properties that should be supported for this definition
+ * \return IMetaDataManager::MetaDataID The MetaDataID representing the ParamBlock data for USD built-in metadata
+ */
+MaxUSDAPI IMetaDataManager::MetaDataID
+          GetOrDefineUsdBuiltInMetaData(const std::vector<UsdMetaDataType>& metaDataIds);
+
+/**
+ * \brief This function return true if a conflict exist between 2 object USD metadata.
+ * \param object1 first to compare for conflict
+ * \param object2 second to compare for conflict
+ * \param timeValue time at which to compare values
+ * \return True if both object contains different metadata value for the same metadata key.
+ */
+MaxUSDAPI bool CheckForConflict(Object* object1, Object* object2, const TimeValue& t);
+
+} // namespace MetaData
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MxsUtils.cpp b/src/MaxUsd/Utilities/MxsUtils.cpp
new file mode 100644
index 0000000..f743b82
--- /dev/null
+++ b/src/MaxUsd/Utilities/MxsUtils.cpp
@@ -0,0 +1,127 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MxsUtils.h"
+
+#include "TranslationUtils.h"
+
+#include <maxscript/foundation/numbers.h>
+
+namespace MAXUSD_NS_DEF {
+namespace mxs {
+
+void SetPrimvarChannelMapping(
+    MaxUsd::PrimvarMappingOptions& options,
+    const wchar_t*                 primvarName,
+    Value*                         channel)
+{
+    int channelId;
+    if (channel == &undefined) {
+        channelId = MaxUsd::PrimvarMappingOptions::invalidChannel;
+    } else {
+        channelId = channel->to_int();
+        // Validation.
+        if (!MaxUsd::IsValidChannel(channelId)) {
+            const auto errorMsg = std::to_wstring(channelId)
+                + std::wstring(L" is not a valid map channel. Valid channels are from -2 to 99 "
+                               L"inclusively.");
+            throw RuntimeError(errorMsg.c_str());
+        }
+    }
+    if (primvarName == nullptr) {
+        WStr errorMsg(L"'undefined' is not a valid primvar name");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    // Make sure the given primvar name is supported...
+    std::string validIdentifier;
+    if (!MaxUsd::GetValidIdentifier(primvarName, validIdentifier)) {
+        const auto errorMsg
+            = primvarName
+            + std::wstring(
+                  L" is not a valid primvar name. The name must start with a letter or underscore, "
+                  L"and must contain only letters, underscores, and numerals..");
+        throw RuntimeError(errorMsg.c_str());
+    }
+
+    options.SetPrimvarChannelMapping(validIdentifier, channelId);
+}
+
+Value* GetPrimvarChannel(const MaxUsd::PrimvarMappingOptions& options, const wchar_t* primvarName)
+{
+    if (primvarName == nullptr) {
+        WStr errorMsg(L"'undefined' is not a valid primvar name");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    // Make sure the given primvar name is supported...
+    std::string validIdentifier;
+    if (!MaxUsd::GetValidIdentifier(primvarName, validIdentifier)) {
+        const auto errorMsg
+            = primvarName
+            + std::wstring(
+                  L" is not a valid primvar name. The name must start with a letter or underscore, "
+                  L"and must contain only letters, underscores, and numerals..");
+        throw RuntimeError(errorMsg.c_str());
+    }
+
+    if (!options.IsMappedPrimvar(validIdentifier)) {
+        return &undefined;
+    }
+
+    int channel = options.GetPrimvarChannelMapping(validIdentifier);
+    if (channel == MaxUsd::PrimvarMappingOptions::invalidChannel) {
+        return &undefined;
+    }
+    return Integer::intern(channel);
+}
+
+Tab<const wchar_t*> GetMappedPrimvars(const MaxUsd::PrimvarMappingOptions& options)
+{
+    static std::vector<std::wstring> primvars;
+    options.GetMappedPrimvars(primvars);
+
+    // Build the tab
+    Tab<const wchar_t*> tab;
+    tab.SetCount(int(primvars.size()));
+    for (size_t i = 0; i < primvars.size(); ++i) {
+        tab[i] = primvars[i].c_str();
+    }
+    // RVO.
+    return tab;
+}
+
+bool IsMappedPrimvar(const MaxUsd::PrimvarMappingOptions& options, const wchar_t* primvarName)
+{
+    if (primvarName == nullptr) {
+        WStr errorMsg(L"'undefined' is not a valid primvar name");
+        throw RuntimeError(errorMsg.data());
+    }
+
+    // Make sure the given primvar name is supported...
+    std::string primvar;
+    if (!MaxUsd::GetValidIdentifier(primvarName, primvar)) {
+        const auto errorMsg
+            = primvarName
+            + std::wstring(
+                  L" is not a valid primvar name. The name must start with a letter or underscore, "
+                  L"and must contain only letters, underscores, and numerals..");
+        throw RuntimeError(errorMsg.c_str());
+    }
+    return options.IsMappedPrimvar(primvar);
+}
+
+} // namespace mxs
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/MxsUtils.h b/src/MaxUsd/Utilities/MxsUtils.h
new file mode 100644
index 0000000..db37eeb
--- /dev/null
+++ b/src/MaxUsd/Utilities/MxsUtils.h
@@ -0,0 +1,63 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+
+#include <MaxUsd.h>
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+namespace mxs {
+
+/**
+ * \brief Sets the target channel for a given primvar.
+ * \param options The options on which to set the mapping.
+ * \param primvarName The primvar name.
+ * \param channel The target channel.
+ */
+MaxUSDAPI void SetPrimvarChannelMapping(
+    PrimvarMappingOptions& options,
+    const wchar_t*         primvarName,
+    Value*                 channel);
+
+/**
+ * \brief Returns the target channel for a given primvar.
+ * \param options The options from which to get the primvar/channel mapping.
+ * \param primvarName The primvar's name
+ * \return The channel, or undefined.
+ */
+MaxUSDAPI Value*
+GetPrimvarChannel(const PrimvarMappingOptions& options, const wchar_t* primvarName);
+
+/**
+ * \brief Returns the names of all mapped primvars (primvars which target 3dsMax channels)
+ * \param options The optins to get the mapped primvars from.
+ * \return The names of mapped primvars.
+ */
+MaxUSDAPI Tab<const wchar_t*> GetMappedPrimvars(const PrimvarMappingOptions& options);
+
+/**
+ * \brief Return whether or not a primvar is mapped. A primvar can be explicitely mapped to "undefined",
+ * meaning it should be ignored.
+ * \param options The options to get the info from.
+ * \param primvarName The primvar name to check for a channel mapping.
+ * \return True if the given primvar is mapped to a channel.
+ */
+MaxUSDAPI bool IsMappedPrimvar(const PrimvarMappingOptions& options, const wchar_t* primvarName);
+
+} // namespace mxs
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/NodeRange.h b/src/MaxUsd/Utilities/NodeRange.h
new file mode 100644
index 0000000..9ca5337
--- /dev/null
+++ b/src/MaxUsd/Utilities/NodeRange.h
@@ -0,0 +1,179 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+#include <cassert>
+#include <cstddef>
+#include <inode.h>
+#include <iterator>
+#include <type_traits>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Builds a new NodeRange depth first iterating over a node hierarchy.
+ */
+class NodeRange
+{
+public:
+    /**
+     *
+     */
+    template <typename T> class iteratorbase
+    {
+        friend class NodeRange;
+
+        /**
+         * \brief Builds a end sentinel iterator.
+         */
+        iteratorbase() noexcept { }
+
+        /**
+         * \brief Builds an iterator visiting \a startNode.
+         */
+        iteratorbase(T startNode) noexcept
+            : nodes({ startNode })
+        {
+        }
+
+        /**
+         * \brief Builds an iterator visiting \a nodes.
+         */
+        template <typename IT>
+        iteratorbase(IT begin, IT end)
+            : nodes(begin, end)
+        {
+        }
+
+    public:
+        using iterator_category = std::forward_iterator_tag;
+        using value_type = T;
+        using difference_type = std::ptrdiff_t;
+        using pointer = T*;
+        using reference = T&;
+
+        /**
+         * \brief Returns the currently visited node.
+         */
+        T operator*() const noexcept { return nodes.front(); }
+
+        /**
+         * \brief Increment the iterator and return its new, post increment, value.
+         */
+        iteratorbase& operator++()
+        {
+            increment();
+            return *this;
+        }
+
+        /**
+         * \brief Increment the iterator and return its current, pre increment, value.
+         */
+        iteratorbase operator++(int)
+        {
+            auto other = *this;
+            increment();
+            return other;
+        }
+
+        /**
+         * \brief Returns if \a this is equal to \a other.
+         */
+        bool operator==(const iteratorbase<T>& other) const noexcept
+        {
+            return nodes == other.nodes;
+        }
+
+        /**
+         * \brief Returns if \a this is different from \a other.
+         */
+        bool operator!=(const iteratorbase<T>& other) const noexcept
+        {
+            return nodes != other.nodes;
+        }
+
+        /**
+         * \brief Copy operation.
+         */
+        iteratorbase<T>& operator=(const iteratorbase<T>& other) = default;
+
+        /**
+         * \brief Conversion operator when underlying iterator type is convertible.
+         */
+        template <typename TT, typename enabler = std::enable_if_t<std::is_convertible_v<T, TT>>>
+        operator iteratorbase<TT>&() const noexcept
+        {
+            static_assert(std::is_convertible_v<T, TT>, "");
+            return iteratorbase<TT>(nodes.begin(), nodes.end());
+        }
+
+    private:
+        /// Stores the set of nodes currently processed.
+        std::deque<T> nodes;
+
+        /**
+         * \brief Moves to the next node.
+         */
+        void increment()
+        {
+            assert(!nodes.empty());
+            auto node = nodes.front();
+            assert(node);
+            nodes.pop_front();
+            for (auto i = 0; i < node->NumberOfChildren(); ++i) {
+                nodes.push_front(node->GetChildNode(i));
+            }
+        }
+    };
+
+    /// Mutable iterator over this range.
+    using iterator = iteratorbase<INode*>;
+
+    /// Non mutable iterator over this range.
+    using const_iterator = iteratorbase<const INode*>;
+
+    /**
+     * \brief Create a range traversing hierarchy rooted at \a root.
+     */
+    NodeRange(INode* root)
+        : it(root)
+    {
+    }
+
+    ~NodeRange() { }
+
+    iterator begin() { return it; }
+
+    const_iterator begin() const { return it; }
+
+    const_iterator cbegin() const { return it; }
+
+    iterator end() { return iterator(); }
+
+    const_iterator end() const { return const_iterator(); }
+
+    const_iterator cend() const { return const_iterator(); }
+
+    void test() { const_iterator t = iterator(it); }
+
+    void increment() { ++it; }
+
+private:
+    iterator it;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/OptionUtils.cpp b/src/MaxUsd/Utilities/OptionUtils.cpp
new file mode 100644
index 0000000..1cbe42c
--- /dev/null
+++ b/src/MaxUsd/Utilities/OptionUtils.cpp
@@ -0,0 +1,282 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// Max includes
+#include <IPathConfigMgr.h>
+#include <MaxDirectories.h>
+
+// Qt includes
+#include <QFile>
+#include <QJsonDocument>
+#include <QJsonObject>
+
+// MaxUsd includes
+#include "ListenerUtils.h"
+#include "OptionUtils.h"
+#include "VtDictionaryUtils.h"
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/Builders/UsdSceneBuilderOptions.h>
+
+// Pxr includes
+#include <pxr/base/tf/diagnostic.h>
+
+namespace MAXUSD_NS_DEF {
+namespace OptionUtils {
+PXR_NAMESPACE_USING_DIRECTIVE
+
+MaxSDK::Util::Path GetPathToUSDSettings()
+{
+    MaxSDK::Util::Path maxUsdSettingsPath;
+
+    IPathConfigMgr* pathMgr = IPathConfigMgr::GetPathConfigMgr();
+    if (pathMgr) {
+        maxUsdSettingsPath.SetPath(pathMgr->GetDir(APP_USER_SETTINGS_DIR));
+        maxUsdSettingsPath.Append(_T("MaxUsd"));
+        // Make sure the folder exists
+        bool res = pathMgr->CreateDirectoryHierarchy(maxUsdSettingsPath);
+        DbgAssert(res);
+    }
+    return maxUsdSettingsPath;
+}
+
+MaxSDK::Util::Path GetPathToUsdExportSettings()
+{
+    auto pathToUsdSettings = GetPathToUSDSettings();
+    pathToUsdSettings.Append(_T("\\usdExportSettings.json"));
+    return pathToUsdSettings.GetCStr();
+}
+
+MaxSDK::Util::Path GetPathToUsdImportSettings()
+{
+    auto pathToUsdSettings = GetPathToUSDSettings();
+    pathToUsdSettings.Append(_T("\\usdImportSettings.json"));
+    return pathToUsdSettings;
+}
+
+MaxSDK::Util::Path GetPathToUsdUiSettings()
+{
+    auto pathToUsdSettings = GetPathToUSDSettings();
+    pathToUsdSettings.Append(_T("\\usdUiSettings.json"));
+    return pathToUsdSettings;
+}
+
+bool ReadJsonFile(QJsonObject& json, QFile& file, const WStr& path)
+{
+    if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        QByteArray data = file.readAll();
+        file.close();
+        QJsonParseError error {};
+        auto            doc = QJsonDocument::fromJson(data, &error);
+        if (error.error != QJsonParseError::NoError) {
+            TF_WARN(
+                "Failed to parse : %s - %s",
+                MaxStringToUsdString(path.data()),
+                error.errorString().toStdString());
+            return false;
+        }
+        if (doc.isObject()) {
+            json = doc.object();
+            return true;
+        }
+        TF_WARN("Failed to parse : %s - Not a JSON object", MaxStringToUsdString(path.data()));
+    } else {
+        TF_WARN("Failed to read : %s", MaxStringToUsdString(path.data()));
+    }
+    return false;
+}
+
+void WriteJsonFile(QFile& file, const std::string& jsonString, const WStr& path)
+{
+    auto writeToFile = [&]() -> bool {
+        if (file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
+            file.write(jsonString.c_str());
+            file.close();
+            return true;
+        }
+        return false;
+    };
+
+    // Try to write to file, if it existed and failed, remove the file and try again
+    if (!writeToFile()) {
+        if (file.exists() && file.remove()) {
+            if (!writeToFile()) {
+                TF_WARN("Failed to write : %s", MaxStringToUsdString(path.data()));
+            }
+        } else {
+            TF_WARN("Failed to write/overwrite : %s", MaxStringToUsdString(path.data()));
+        }
+    }
+}
+
+void SaveRollupStates(const QString& category, const std::map<QString, bool>& rollupStates)
+{
+    QJsonObject json;
+    QFile       file(GetPathToUsdUiSettings().GetString());
+
+    if (file.exists()) {
+        if (!ReadJsonFile(json, file, GetPathToUsdUiSettings().GetString())) {
+            return;
+        }
+    }
+    QJsonObject categoryJson;
+    for (const auto& item : rollupStates) {
+        categoryJson[item.first] = item.second;
+    }
+    json[category] = categoryJson;
+
+    QJsonDocument doc(json);
+    WriteJsonFile(file, doc.toJson().toStdString(), GetPathToUsdUiSettings().GetString());
+}
+
+std::map<QString, bool> LoadRollupStates(const QString& category)
+{
+    static std::map<QString, bool> rollupStates;
+    QFile                          file(GetPathToUsdUiSettings().GetString());
+    QJsonObject                    json;
+
+    if (file.exists()) {
+        if (!ReadJsonFile(json, file, GetPathToUsdUiSettings().GetString())) {
+            return rollupStates;
+        }
+
+        QJsonObject categoryJson = json[category].toObject();
+        for (auto it = categoryJson.begin(); it != categoryJson.end(); ++it) {
+            rollupStates[it.key()] = it.value().toBool();
+        }
+    }
+    return rollupStates;
+}
+
+std::string SerializeOptionsToJson(const DictionaryOptionProvider& options)
+{
+    QJsonObject json;
+    DictUtils::VtDictToJson(options.GetOptions(), json);
+
+    QJsonDocument doc(json);
+    return doc.toJson().toStdString();
+}
+
+pxr::VtDictionary DeserializeOptionsFromJson(const QByteArray& data)
+{
+    QJsonObject   json = QJsonDocument::fromJson(data).object();
+    QJsonDocument doc(json);
+    QString       strJson(doc.toJson());
+    auto          stdStr = strJson.toStdString();
+
+    pxr::VtDictionary dict;
+    DictUtils::VtDictFromString(stdStr, dict);
+
+    return dict;
+}
+
+void SaveUiOptions(const std::string& category, const pxr::VtDictionary& dict)
+{
+    QJsonObject json;
+
+    QFile file(GetPathToUsdUiSettings().GetString());
+
+    if (file.exists()) {
+        if (!ReadJsonFile(json, file, GetPathToUsdUiSettings().GetString())) {
+            return;
+        }
+    }
+
+    QJsonObject jsonObj;
+    DictUtils::VtDictToJson(dict, jsonObj);
+    json[QString::fromStdString(category)] = jsonObj;
+
+    QJsonDocument doc(json);
+    WriteJsonFile(file, doc.toJson().toStdString(), GetPathToUsdUiSettings().GetString());
+}
+
+void LoadUiOptions(
+    const std::string&       category,
+    pxr::VtDictionary&       dict,
+    const pxr::VtDictionary& guide)
+{
+    QFile       file(GetPathToUsdUiSettings().GetString());
+    QJsonObject json;
+
+    if (file.exists()) {
+        if (!ReadJsonFile(json, file, GetPathToUsdUiSettings().GetString())) {
+            dict = guide;
+            return;
+        }
+
+        QJsonObject   categoryJson = json[QString::fromStdString(category)].toObject();
+        QJsonDocument doc(categoryJson);
+        QString       strJson(doc.toJson());
+        auto          stdStr = strJson.toStdString();
+        DictUtils::VtDictFromString(stdStr, dict);
+        if (!guide.empty()) {
+            DictUtils::CoerceDictToGuideType(dict, guide);
+            dict = VtDictionaryOver(dict, guide);
+        }
+    } else if (!guide.empty()) {
+        dict = guide;
+    }
+}
+
+void SaveToFile(const DictionaryOptionProvider& optionsProvider, const MaxSDK::Util::Path& filePath)
+{
+    const auto json = SerializeOptionsToJson(optionsProvider);
+    QFile      file(filePath.GetString());
+
+    WriteJsonFile(file, json, filePath.GetString());
+}
+
+void SaveExportOptions(const USDSceneBuilderOptions& options)
+{
+    SaveToFile(options, GetPathToUsdExportSettings());
+}
+
+void SaveImportOptions(const MaxSceneBuilderOptions& options)
+{
+    SaveToFile(options, GetPathToUsdImportSettings());
+}
+
+template <typename OptionsType> OptionsType LoadOptions(const MaxSDK::Util::Path& filePath)
+{
+    OptionsType options; // Assumes default constructible
+
+    QFile file(filePath.GetString());
+    if (file.exists()) {
+        if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+            QByteArray data = file.readAll();
+            file.close();
+
+            return OptionsType(DeserializeOptionsFromJson(data));
+        } else {
+            TF_WARN("Failed to load options from : %s", MaxStringToUsdString(filePath.GetCStr()));
+        }
+    }
+    options.SetDefaults();
+    return options; // Return default options if file doesn't exist or failed to open
+}
+
+MaxSceneBuilderOptions LoadImportOptions()
+{
+    return LoadOptions<MaxSceneBuilderOptions>(GetPathToUsdImportSettings());
+}
+
+USDSceneBuilderOptions LoadExportOptions()
+{
+    return LoadOptions<USDSceneBuilderOptions>(GetPathToUsdExportSettings());
+}
+
+} // namespace OptionUtils
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/OptionUtils.h b/src/MaxUsd/Utilities/OptionUtils.h
new file mode 100644
index 0000000..5a28c5c
--- /dev/null
+++ b/src/MaxUsd/Utilities/OptionUtils.h
@@ -0,0 +1,113 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+
+class QByteArray;
+class pxr::VtDictionary;
+
+namespace MAXUSD_NS_DEF {
+
+class DictionaryOptionProvider;
+class USDSceneBuilderOptions;
+class MaxSceneBuilderOptions;
+
+namespace OptionUtils {
+
+// Get path to the MaxUsd settings folder
+MaxUSDAPI MaxSDK::Util::Path GetPathToUSDSettings();
+// Get path to the MaxUsd export settings file
+MaxUSDAPI MaxSDK::Util::Path GetPathToUsdExportSettings();
+// Get path to the MaxUsd import settings file
+MaxUSDAPI MaxSDK::Util::Path GetPathToUsdImportSettings();
+// Get path to the MaxUsd general settings file
+MaxUSDAPI MaxSDK::Util::Path GetPathToUsdUiSettings();
+
+/**
+ * \brief Save the rollup states to the settings file, under the given category name.
+ * @param category The name of the json object to save the rollups state under.
+ * @param rollupStates A map of the rollup names and their state (open/close).
+ */
+MaxUSDAPI void
+SaveRollupStates(const QString& category, const std::map<QString, bool>& rollupStates);
+/**
+ * \brief Get the state (open/close) of all the rollups saved under this category name.
+ * \param category The name of the json object the rollups state were saved under.
+ * \return A map of the rollup names and their state (open/close).
+ */
+MaxUSDAPI std::map<QString, bool> LoadRollupStates(const QString& category);
+
+/**
+ * \brief Serialize the options to a json string.
+ * \param options The options to serialize.
+ * \return A json string representing the options.
+ */
+MaxUSDAPI std::string SerializeOptionsToJson(const DictionaryOptionProvider& options);
+
+/**
+ * \brief Deserialize the options from a json string to a VtDictionary.
+ * \param data The json string to deserialize.
+ * \return The deserialized options as a VtDictionary.
+ */
+MaxUSDAPI pxr::VtDictionary DeserializeOptionsFromJson(const QByteArray& data);
+
+/**
+ * \brief Serialize the options to a json string and save it to the UI settings file.
+ * \param category The name of the json object to save the options under.
+ * \param dict The options to save.
+ */
+MaxUSDAPI void SaveUiOptions(const std::string& category, const pxr::VtDictionary& dict);
+
+/**
+ * \brief Load the options from the UI settings file under the given category name.
+ * \param category The name of the json object the options were saved under.
+ * \param dict The VtDictionary to load the options into.
+ * \param guide The guide to enforce the type of the values in the dictionary,
+ * if provided will also ensure that the guide entries are present.
+ */
+MaxUSDAPI void LoadUiOptions(
+    const std::string&       category,
+    pxr::VtDictionary&       dict,
+    const pxr::VtDictionary& guide = pxr::VtDictionary());
+
+/**
+ * \brief Serialize and save the export options to disc.
+ * \param options The USDSceneBuilderOptions object to save.
+ */
+MaxUSDAPI void SaveExportOptions(const USDSceneBuilderOptions& options);
+
+/**
+ * \brief Load and deserialize the export options from disc.
+ * \return A USDSceneBuilderOptions object with the loaded options.
+ */
+MaxUSDAPI USDSceneBuilderOptions LoadExportOptions();
+
+/**
+ * \brief Serialize and save the import options to disc.
+ * \param options The MaxSceneBuilderOptions object to save.
+ */
+MaxUSDAPI void SaveImportOptions(const MaxSceneBuilderOptions& options);
+
+/**
+ * \brief Load and deserialize the import options from disc.
+ * @return A MaxSceneBuilderOptions object with the loaded options.
+ */
+MaxUSDAPI MaxSceneBuilderOptions LoadImportOptions();
+
+} // namespace OptionUtils
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/PluginUtils.cpp b/src/MaxUsd/Utilities/PluginUtils.cpp
new file mode 100644
index 0000000..cecef03
--- /dev/null
+++ b/src/MaxUsd/Utilities/PluginUtils.cpp
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "PluginUtils.h"
+// USDComponentVersion.h need to be included after the max sdk to avoid redefinition of VERSION_INT.
+#include "TranslationUtils.h"
+#include "USDComponentVersion.h"
+
+class DllDesc;
+
+namespace MAXUSD_NS_DEF {
+
+const std::string GetPluginVersion() { return USD_COMPONENT_VERSION_STRING; }
+
+std::string GetPluginDisplayVersion()
+{
+    const std::string ver = GetPluginVersion();
+    return "v" + ver;
+}
+
+std::string GenerateGUID()
+{
+    GUID guid;
+    CoCreateGuid(&guid);
+
+    wchar_t szGUID[64] = { 0 };
+    StringFromGUID2(guid, szGUID, 64);
+
+    return std::string(MaxUsd::MaxStringToUsdString(szGUID));
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/PluginUtils.h b/src/MaxUsd/Utilities/PluginUtils.h
new file mode 100644
index 0000000..a114f19
--- /dev/null
+++ b/src/MaxUsd/Utilities/PluginUtils.h
@@ -0,0 +1,39 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+
+/*
+ * /brief returns the max-usd plugin version as defined in PackageContents.xml
+ */
+MaxUSDAPI const std::string GetPluginVersion();
+
+/*
+ * /brief returns the user friendly max-usd plugin version
+ */
+MaxUSDAPI std::string GetPluginDisplayVersion();
+
+/*
+ * /brief Creates and return a new GUID
+ * \return new GUID as a std::string
+ */
+MaxUSDAPI std::string GenerateGUID();
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/ProgressReporter.h b/src/MaxUsd/Utilities/ProgressReporter.h
new file mode 100644
index 0000000..446d741
--- /dev/null
+++ b/src/MaxUsd/Utilities/ProgressReporter.h
@@ -0,0 +1,64 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief General purpose utility class for reporting progress. Callbacks to run
+ * when starting, updating, and finishing progress are hooked up from the constructor.
+ */
+class ProgressReporter
+{
+public:
+    ProgressReporter() { }
+
+    ProgressReporter(
+        const std::function<void(const std::wstring&)>& startFunction,
+        const std::function<void(int)>&                 updateFunction,
+        const std::function<void()>&                    endFunction)
+        : start(startFunction)
+        , update(updateFunction)
+        , end(endFunction)
+    {
+    }
+
+    void Start(const std::wstring& title) const
+    {
+        if (start) {
+            start(title);
+        }
+    }
+
+    void Update(int progress) const
+    {
+        if (update) {
+            update(progress);
+        }
+    }
+
+    void End() const
+    {
+        if (end) {
+            end();
+        }
+    }
+
+private:
+    std::function<void(const std::wstring&)> start;
+    std::function<void(int)>                 update;
+    std::function<void()>                    end;
+};
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/ScopeGuard.h b/src/MaxUsd/Utilities/ScopeGuard.h
new file mode 100644
index 0000000..f76757d
--- /dev/null
+++ b/src/MaxUsd/Utilities/ScopeGuard.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+
+template <typename ReleaseLambda> class ScopeGuard
+{
+    ReleaseLambda releaseLambda;
+
+public:
+    template <typename AcquireLambda, typename ReleaseLambda>
+    ScopeGuard(AcquireLambda&& acquire, ReleaseLambda&& release)
+        : releaseLambda(std::forward<ReleaseLambda>(release))
+    {
+        std::forward<AcquireLambda>(acquire)();
+    }
+
+    ~ScopeGuard() { releaseLambda(); }
+};
+
+template <typename AcquireLambda, typename ReleaseLambda>
+ScopeGuard<ReleaseLambda> MakeScopeGuard(AcquireLambda&& acquire, ReleaseLambda&& release)
+{
+    return ScopeGuard<ReleaseLambda>(
+        std::forward<AcquireLambda>(acquire), std::forward<ReleaseLambda>(release));
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/TimeUtils.cpp b/src/MaxUsd/Utilities/TimeUtils.cpp
new file mode 100644
index 0000000..759a5ef
--- /dev/null
+++ b/src/MaxUsd/Utilities/TimeUtils.cpp
@@ -0,0 +1,39 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "TimeUtils.h"
+
+namespace MAXUSD_NS_DEF {
+
+void ImportTimeConfig::SetStartTimeCode(double timeCode)
+{
+    this->startTimeCode = timeCode;
+
+    if (endTimeCode < startTimeCode) {
+        SetEndTimeCode(startTimeCode);
+    }
+}
+
+void ImportTimeConfig::SetEndTimeCode(double timeCode)
+{
+    if (timeCode < startTimeCode) {
+        DbgAssert(0 && "EndTimeCode cannot be smaller than StartTimeCode");
+        timeCode = startTimeCode;
+    }
+
+    this->endTimeCode = timeCode;
+}
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/TimeUtils.h b/src/MaxUsd/Utilities/TimeUtils.h
new file mode 100644
index 0000000..0f172dc
--- /dev/null
+++ b/src/MaxUsd/Utilities/TimeUtils.h
@@ -0,0 +1,236 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usd/timeCode.h>
+
+#include <MaxUsd.h>
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Returns the TimeValue (in ticks) associated with a given frame.
+ * \param frame The frame.
+ * \return The TimeValue
+ */
+inline TimeValue GetTimeValueFromFrame(double frame)
+{
+    return TimeValue(frame * GetTicksPerFrame());
+}
+
+/**
+ * \brief Returns the frame associated with the given TimeValue.
+ * \param time The time value
+ * \return The associated frame.
+ */
+inline double GetFrameFromTimeValue(TimeValue time)
+{
+    return double(time) / double(GetTicksPerFrame());
+}
+
+/**
+ * \brief Represents a time configuration for exporting a 3dsMax scene to USD, i.e. the frame
+ * range to export, and the sampling rate.
+ */
+class TimeConfig
+{
+public:
+    TimeConfig() {};
+
+    TimeConfig(double startFrame, double endFrame, double samplesPerFrame)
+    {
+        SetStartFrame(startFrame);
+        SetEndFrame(endFrame);
+        SetSamplesPerFrame(samplesPerFrame);
+    }
+
+    TimeConfig(TimeValue startTime, TimeValue endTime, double samplesPerFrame)
+    {
+        SetStartTime(startTime);
+        SetEndTime(endTime);
+        SetSamplesPerFrame(samplesPerFrame);
+    }
+
+    void SetStartFrame(double startFrame)
+    {
+        this->startFrame = startFrame;
+        this->startTime = GetTimeValueFromFrame(startFrame);
+    }
+
+    void SetEndFrame(double endFrame)
+    {
+        this->endFrame = endFrame;
+        this->endTime = GetTimeValueFromFrame(endFrame);
+    }
+
+    void SetStartTime(TimeValue startTime)
+    {
+        this->startTime = startTime;
+        this->startFrame = GetFrameFromTimeValue(startTime);
+    }
+
+    void SetEndTime(TimeValue endTime)
+    {
+        this->endTime = endTime;
+        this->endFrame = double(endTime) / double(GetTicksPerFrame());
+    }
+
+    void SetSamplesPerFrame(double samplesPerFrame)
+    {
+        ValidateSamplePerFrame(samplesPerFrame);
+        this->samplesPerFrame = samplesPerFrame;
+    }
+
+    static void ValidateSamplePerFrame(double& samplesPerFrame)
+    {
+        if (samplesPerFrame <= 0) {
+            DbgAssert(0 && "Samples per frame should be greater than 0");
+            samplesPerFrame = 0.01;
+        }
+    }
+
+    double GetStartFrame() const { return startFrame; }
+
+    double GetEndFrame() const { return endFrame; }
+
+    TimeValue GetStartTime() const { return startTime; }
+
+    TimeValue GetEndTime() const { return endTime; }
+
+    double GetSamplesPerFrame() const { return samplesPerFrame; }
+
+    bool IsAnimated() const { return startFrame != endFrame; }
+
+    int GetTimeStep() const
+    {
+        return static_cast<int>(static_cast<double>(GetTicksPerFrame()) / samplesPerFrame);
+    }
+
+private:
+    double    startFrame { 0.0 };
+    double    endFrame { 0.0 };
+    TimeValue startTime { 0 };
+    TimeValue endTime { 0 };
+    double    samplesPerFrame { 1.0 };
+};
+
+/**
+ * \brief Represents the time configuration for importing USD stage into 3ds Max.
+ */
+class ImportTimeConfig
+{
+public:
+    /**
+     * \brief Default constructor.
+     */
+    MaxUSDAPI explicit ImportTimeConfig() = default;
+
+    /**
+     * \brief Constructor with non-default values for start and end time code.
+     * \param startTimeCode value to be set as the start time code to be used when importing USD
+     * \param endTimeCode value to be set as the end time code to be used when importing USD
+     */
+    MaxUSDAPI explicit ImportTimeConfig(double startTimeCode, double endTimeCode)
+    {
+        SetStartTimeCode(startTimeCode);
+        SetEndTimeCode(endTimeCode);
+    }
+
+    /**
+     * \brief Sets the start time code to be used when importing USD.
+     * If the new startTimeCode value is greater than the end time code, this method will also
+     * update the end time code to be equal to the start time code.
+     * \param startTimeCode the value to be set as the start time code
+     */
+    MaxUSDAPI void SetStartTimeCode(double startTimeCode);
+
+    /**
+     * \brief Sets the end time code to be used when importing USD.
+     * If the new endTimeCode is less than the start time code, it will be capped to the start time
+     * code, as the end time code can't be smaller than the start time code.
+     * \param endTimeCode the value to be set as the end time code
+     */
+    MaxUSDAPI void SetEndTimeCode(double endTimeCode);
+
+    /**
+     * \brief Gets the start time when importing USD.
+     * \return Start time code to import USD
+     */
+    MaxUSDAPI double GetStartTimeCode() const { return startTimeCode; }
+
+    /**
+     * \brief Gets the end time when importing USD.
+     * \return End time code to import USD.
+     */
+    MaxUSDAPI double GetEndTimeCode() const { return endTimeCode; }
+
+    /**
+     * \brief Checks if importing and animated range.
+     * \return Is animated returns true if the start time code is different than the end time code.
+     */
+    MaxUSDAPI bool IsAnimated() const { return startTimeCode != endTimeCode; }
+
+private:
+    /// Represents the start time code to be imported
+    double startTimeCode { 0 };
+    /// Represents the end time code to be imported
+    double endTimeCode { 0 };
+};
+
+/**
+ * \brief Represents a single time sample export configuration. I.e. the 3dsMax time value, and what
+ * USD timecode is corresponds to. Also allows to specify whether this time sample is the first
+ * being exported for a object.
+ */
+class ExportTime
+{
+public:
+    ExportTime(const TimeValue& maxTime, const pxr::UsdTimeCode& usdTime, bool isFirstFrame)
+    {
+        this->maxTime = maxTime;
+        this->maxFrame = MaxUsd::GetFrameFromTimeValue(maxTime);
+        this->usdTime = usdTime;
+        this->isFirstFrame = isFirstFrame;
+    }
+
+    ExportTime(double maxFrame, const pxr::UsdTimeCode& usdTime, bool isFirstFrame)
+    {
+        this->maxFrame = maxFrame;
+        this->maxTime = MaxUsd::GetTimeValueFromFrame(maxFrame);
+        this->usdTime = usdTime;
+        this->isFirstFrame = isFirstFrame;
+    }
+
+    TimeValue GetMaxTime() const { return maxTime; }
+
+    // For convenience in python exposure.
+    double GetMaxFrame() const { return maxFrame; }
+
+    pxr::UsdTimeCode GetUsdTime() const { return usdTime; }
+
+    bool IsFirstFrame() const { return isFirstFrame; }
+
+private:
+    TimeValue        maxTime;
+    double           maxFrame;
+    pxr::UsdTimeCode usdTime;
+    bool             isFirstFrame = true;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/TranslationUtils.cpp b/src/MaxUsd/Utilities/TranslationUtils.cpp
new file mode 100644
index 0000000..c7a8043
--- /dev/null
+++ b/src/MaxUsd/Utilities/TranslationUtils.cpp
@@ -0,0 +1,1087 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TranslationUtils.h"
+
+#include "MathUtils.h"
+#include "MaxSupportUtils.h"
+#include "MetaDataUtils.h"
+#include "TypeUtils.h"
+
+#include <pxr/usd/kind/registry.h>
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usdGeom/metrics.h>
+#include <pxr/usd/usdGeom/xform.h>
+#include <pxr/usd/usdGeom/xformable.h>
+#include <pxr/usd/usdSkel/root.h>
+#include <pxr/usd/usdSkel/skeleton.h>
+#include <pxr/usd/usdSkel/utils.h>
+
+#include <maxscript/maxscript.h>
+
+#include <XRef/iXrefItem.h>
+#include <control.h>
+#include <iInstanceMgr.h>
+#include <iparamb2.h>
+#include <iskin.h>
+#include <max.h>
+#include <modstack.h>
+#include <path.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+namespace MAXUSD_NS_DEF {
+
+bool WsmRequiresTransformToLocalSpace(INode* node, const TimeValue& time)
+{
+    // Check's if a WSM exists.
+    if (node->GetObjectRef() != node->GetObjOrWSMRef()) {
+        // If a World Space Modifier is applied, the object's points are already transformed in
+        // world space, and so the object transform is the identity. In this case, we would bake the
+        // inverse of the node's transform into the geometry to move points back to local space, so
+        // that within the USD hierarchy, where transforms are inherited, the overall transform of
+        // each vertex is correct. Can be false positive if the object TM before WSM was at the
+        // identity. Disregard this to avoid getting different results over animations, because it
+        // is the identity transform, this wont have adverse effects.
+        const auto afterWSM = node->GetObjTMAfterWSM(time);
+        return MaxUsd::MathUtils::IsIdentity(afterWSM);
+    }
+    return false;
+}
+
+Matrix3 GetMaxObjectOffsetTransform(INode* node)
+{
+    // The following implementation is directly from the Max docs.
+    Matrix3 transform = Matrix3::Identity;
+    Point3  pos = node->GetObjOffsetPos();
+    transform.PreTranslate(pos);
+    Quat quat = node->GetObjOffsetRot();
+    PreRotateMatrix(transform, quat);
+    ScaleValue scaleValue = node->GetObjOffsetScale();
+    ApplyScaling(transform, scaleValue);
+    return transform;
+}
+
+void ApplyObjectOffsetTransform(
+    INode*                 node,
+    pxr::UsdGeomXformable& xformable,
+    const TimeValue&       time)
+{
+    // If a WSM is applied, the offset is already considered for the geometry's points,
+    // which are now in world space.
+    if (WsmRequiresTransformToLocalSpace(node, time)) {
+        return;
+    }
+    const auto objectTransform = MaxUsd::GetMaxObjectOffsetTransform(node);
+    if (!MaxUsd::MathUtils::IsIdentity(objectTransform)) {
+        bool                resetsXformStack = false;
+        pxr::UsdGeomXformOp usdGeomXFormOp;
+        size_t              nbOfOps = xformable.GetOrderedXformOps(&resetsXformStack).size();
+        usdGeomXFormOp = xformable.AddXformOp(
+            pxr::UsdGeomXformOp::TypeTransform,
+            pxr::UsdGeomXformOp::PrecisionDouble,
+            nbOfOps > 0 ? pxr::TfToken("t" + std::to_string(nbOfOps)) : pxr::TfToken());
+        usdGeomXFormOp.Set(MaxUsd::ToUsd(objectTransform));
+    }
+}
+
+bool IsValidChannel(int channel) { return channel >= -NUM_HIDDENMAPS && channel < MAX_MESHMAPS; }
+
+bool GetValidIdentifier(const std::wstring& identifier, std::string& validIdentifier)
+{
+    const auto bytes = MaxUsd::MaxStringToUsdString(identifier.c_str());
+    validIdentifier = pxr::TfMakeValidIdentifier(bytes);
+    return wcscmp(identifier.c_str(), MaxUsd::UsdStringToMaxString(validIdentifier.c_str()).data())
+        == 0;
+}
+
+size_t GetTypeDimension(const pxr::SdfValueTypeName& type)
+{
+    size_t dimension = 1;
+    auto   dimensions = type.GetDimensions();
+    if (dimensions.size > 0) {
+        dimension = dimensions.d[0];
+    }
+    return dimension;
+}
+
+bool ValidateMappedDataForMesh(
+    size_t                valueCount,
+    const pxr::VtIntArray indices,
+    const MNMesh&         maxMesh,
+    const pxr::TfToken&   interpolation,
+    bool                  isIndexed)
+{
+    if (!pxr::UsdGeomPrimvar::IsValidInterpolation(interpolation)) {
+        return false;
+    }
+
+    // Data requirements will vary depending on the interpolation used.
+    int minValueCount = 1; // Constant interpolation.
+    if (interpolation == pxr::UsdGeomTokens->vertex
+        || interpolation == pxr::UsdGeomTokens->varying) {
+        minValueCount = maxMesh.VNum();
+    } else if (interpolation == pxr::UsdGeomTokens->uniform) {
+        minValueCount = maxMesh.FNum();
+    } else if (interpolation == pxr::UsdGeomTokens->faceVarying) {
+        minValueCount = 0;
+        for (int i = 0; i < maxMesh.FNum(); i++) {
+            minValueCount += maxMesh.F(i)->deg;
+        }
+    }
+
+    if (!isIndexed) {
+        return valueCount >= minValueCount;
+    }
+
+    int minIndexCount = minValueCount;
+    minValueCount = 1;
+
+    // Indexed...
+    if (indices.size() < minIndexCount || valueCount < minValueCount) {
+        return false;
+    }
+    return std::all_of(indices.begin(), indices.end(), [&valueCount](int idx) {
+        return idx >= 0 && idx < valueCount;
+    });
+}
+
+bool IsAttributeAuthored(const pxr::UsdAttribute& att, const pxr::UsdTimeCode& timeCode)
+{
+    std::vector<double> samples(att.GetNumTimeSamples());
+    att.GetTimeSamples(&samples);
+    return std::find(samples.begin(), samples.end(), timeCode) != samples.end();
+}
+
+bool IsValidAbsolutePath(const fs::path& path)
+{
+    if (!path.is_absolute() || !path.has_filename() || !path.has_extension()) {
+        return false;
+    }
+    auto maxPath = MaxSDK::Util::Path(path.c_str());
+    // Need to resolve the path before validating the path length.
+    maxPath = maxPath.GetResolvedAbsolutePath();
+    if (maxPath.GetString().Length() > MAX_PATH) {
+        return false;
+    }
+    return maxPath.IsLegal();
+}
+
+bool FindInstanceableNodes(
+    INode*                            node,
+    INodeTab&                         instancesNode,
+    const std::unordered_set<INode*>& eligibleNodes)
+{
+    INodeTab      nodeTabs;
+    IInstanceMgr* instanceMgr = IInstanceMgr::GetInstanceMgr();
+    instanceMgr->GetInstances(*node, nodeTabs);
+
+    // The resulting nodeTabs will contains the node itself.
+    if (nodeTabs.Count() < 2) {
+        return false;
+    }
+
+    // Find the last derived object with modifier applied to it
+    Object* refObjectPtr1 = GetFirstDerivedObjectWithModifier(node);
+
+    if (refObjectPtr1 == nullptr ||
+        // Don't consider object with space warp for instancing.
+        refObjectPtr1->ClassID() == Class_ID(WSM_DERIVOB_CLASS_ID, 0) ||
+        // Don't consider helpers without geometry for instancing either, no point in instancing
+        // Xforms on the USD side.
+        (refObjectPtr1->SuperClassID() == HELPER_CLASS_ID
+         && !refObjectPtr1->CanConvertToType({ TRIOBJ_CLASS_ID, 0 }))) {
+        return false;
+    }
+
+    // Look at every other related nodes to find the ones where the last derived node with modifier
+    // is the same.
+    for (int i = 0; i < nodeTabs.Count(); i++) {
+        const auto node = nodeTabs[i];
+        if (!eligibleNodes.empty() && eligibleNodes.find(node) == eligibleNodes.end()) {
+            continue;
+        }
+
+        Object* refObjectPtr2 = GetFirstDerivedObjectWithModifier(node);
+
+        // Don't consider object with space warp for instancing
+        if (refObjectPtr2 == nullptr
+            || refObjectPtr2->ClassID() == Class_ID(WSM_DERIVOB_CLASS_ID, 0)) {
+            continue;
+        }
+
+        if (refObjectPtr1 == refObjectPtr2) {
+            instancesNode.Append(1, &nodeTabs[i]);
+        }
+    }
+
+    return instancesNode.Count() > 1 ? true : false;
+}
+
+Object* GetFirstDerivedObjectWithModifier(INode* node)
+{
+    Object* objectPtr = node->GetObjOrWSMRef();
+    while (objectPtr && objectPtr->SuperClassID() == GEN_DERIVOB_CLASS_ID) {
+        IDerivedObject* derivedObjectPtr = static_cast<IDerivedObject*>(objectPtr);
+        int             nbModifier = derivedObjectPtr->NumModifiers();
+        if (nbModifier > 0) {
+            break;
+        }
+        objectPtr = derivedObjectPtr->GetObjRef();
+    }
+    return objectPtr;
+}
+
+std::string UniqueNameGenerator::GetName(const std::string& name)
+{
+    if (existingNames.find(name) == existingNames.end()) {
+        existingNames.insert(name);
+        return name;
+    }
+
+    std::string newName = GetNextName(name);
+    while (existingNames.find(newName) != existingNames.end()) {
+        newName = GetNextName(newName);
+    }
+
+    existingNames.insert(newName);
+    return newName;
+}
+
+std::string UniqueNameGenerator::GetNextName(const std::string& name)
+{
+    // Look for a number at the end of the string to be incremented...
+    bool     foundSuffix = false;
+    uint64_t oldSuffixInt = 0;
+    if (!name.empty()) {
+        int      index = static_cast<int>(name.size()) - 1;
+        uint64_t factor = 1;
+        while (index >= 0 && _istdigit(name[index])) {
+            oldSuffixInt += factor * std::stoi(std::string(1, name[index--]));
+            factor *= 10;
+            foundSuffix = true;
+        }
+    }
+
+    // No number suffix found, simply, append "1"
+    if (!foundSuffix) {
+        return (name + "1");
+    }
+
+    // Replace with the new incremented suffix.
+    const auto oldSuffix = std::to_string(oldSuffixInt);
+    auto       suffixPos = name.rfind(oldSuffix);
+    // If the new suffix is bigger, check if we have a preceding zero that we should use,
+    // so that we bump 009 to 010 and not 0010.
+    const auto newSuffix = std::to_string(oldSuffixInt + 1);
+    if (newSuffix.size() > oldSuffix.size() && name[suffixPos - 1] == '0') {
+        suffixPos--;
+    }
+    auto newName = name.substr(0, suffixPos) + newSuffix;
+    return newName;
+}
+
+float GetMaxFrameFromUsdFrameTime(
+    const pxr::UsdStageWeakPtr& stage,
+    const pxr::UsdTimeCode      usdFrameTimeCode)
+{
+    return static_cast<float>(
+        usdFrameTimeCode.GetValue() / (GetFrameRate() * stage->GetTimeCodesPerSecond()));
+}
+
+double
+GetMaxFrameFromUsdTimeCode(const pxr::UsdStageWeakPtr& stage, const pxr::UsdTimeCode usdTimeCode)
+{
+    auto stageFPS = stage->GetTimeCodesPerSecond();
+    auto maxFPS = GetFrameRate();
+
+    return usdTimeCode.GetValue() * (maxFPS / stageFPS);
+}
+
+TimeValue GetMaxTimeValueFromUsdTimeCode(
+    const pxr::UsdStageWeakPtr& stage,
+    const pxr::UsdTimeCode      usdTimeCode)
+{
+    const auto timeCodePerSec = stage->GetTimeCodesPerSecond();
+    return MaxUsd::GetTimeValueFromFrame(GetFrameRate() * usdTimeCode.GetValue() / timeCodePerSec);
+}
+
+pxr::UsdTimeCode
+GetUsdTimeCodeFromMaxFrame(const pxr::UsdStageWeakPtr& stage, const double maxFrame)
+{
+    auto stageFPS = stage->GetTimeCodesPerSecond();
+    auto maxFPS = GetFrameRate();
+
+    return maxFrame * (stageFPS / maxFPS);
+}
+
+pxr::UsdTimeCode
+GetUsdTimeCodeFromMaxTime(const pxr::UsdStageWeakPtr& stage, const TimeValue& timeValue)
+{
+    auto secs = TicksToSec(timeValue);
+    auto tcPerSec = stage->GetTimeCodesPerSecond();
+    return pxr::UsdTimeCode(secs * tcPerSec);
+}
+
+pxr::UsdTimeCode GetOffsetTimeCode(
+    const pxr::UsdStageWeakPtr& stage,
+    const TimeValue&            timeValue,
+    const double                customAnimStartFrame,
+    const double                customAnimationLength)
+{
+    auto stageStartCode = stage->GetStartTimeCode();
+    auto stageEndCode = stage->GetEndTimeCode();
+
+    auto sourceAnimLength = stageEndCode - stageStartCode;
+    auto maxAnimLength = MaxUsd::GetMaxFrameFromUsdTimeCode(stage, sourceAnimLength);
+
+    auto usdAnimRenderScaler = 1.0;
+    if (customAnimationLength != 0 && customAnimationLength != maxAnimLength) {
+        usdAnimRenderScaler = maxAnimLength / customAnimationLength;
+    }
+
+    auto tcPerSec = stage->GetTimeCodesPerSecond();
+    auto animStartTimeInTicks = customAnimStartFrame * GetTicksPerFrame();
+
+    auto usdAnimRenderOffsetInTimecodes
+        = stageStartCode - GetUsdTimeCodeFromMaxFrame(stage, customAnimStartFrame).GetValue();
+    auto timeSinceAnimStartedInTicks = timeValue - animStartTimeInTicks;
+
+    auto timeBeforeAnimStarted = TicksToSec(static_cast<TimeValue>(animStartTimeInTicks));
+    auto usdTimeCode = pxr::UsdTimeCode(
+        timeBeforeAnimStarted * tcPerSec
+        + (TicksToSec(static_cast<TimeValue>(timeSinceAnimStartedInTicks * usdAnimRenderScaler))
+           * tcPerSec)
+        + usdAnimRenderOffsetInTimecodes);
+
+    return usdTimeCode;
+}
+
+pxr::UsdTimeCode GetCurrentUsdTimeCode(const pxr::UsdStageWeakPtr& stage)
+{
+    const auto frame = GetCOREInterface()->GetTime() / double(GetTicksPerFrame());
+    return GetUsdTimeCodeFromMaxFrame(stage, frame);
+}
+
+bool IsStageUsingYUpAxis(const pxr::UsdStageWeakPtr& stage)
+{
+    if (!stage) {
+        return false;
+    }
+    const auto upAxis = pxr::UsdGeomGetStageUpAxis(stage);
+    if (upAxis == pxr::UsdGeomTokens->y || upAxis == pxr::UsdGeomTokens->z) {
+        return upAxis == pxr::UsdGeomTokens->y;
+    } else {
+        const char* upAxisValue = upAxis.data();
+        return std::toupper(upAxisValue[0]) == pxr::UsdGeomTokens->y.data()[0];
+    }
+}
+
+pxr::GfMatrix4d GetStageAxisAndUnitRootTransform(pxr::UsdStageWeakPtr stage)
+{
+    pxr::GfMatrix4d rootTransform;
+    if (!stage) {
+        rootTransform.SetIdentity();
+        return rootTransform;
+    }
+
+    const auto rescaleFactor = MaxUsd::GetUsdToMaxScaleFactor(stage);
+    rootTransform.SetScale(rescaleFactor);
+
+    if (IsStageUsingYUpAxis(stage)) {
+        MaxUsd::MathUtils::ModifyTransformYToZUp(rootTransform);
+    }
+    return rootTransform;
+}
+
+double GetUsdToMaxScaleFactor(const pxr::UsdStageWeakPtr& stage)
+{
+    const double maxUnitsPerMeter = GetSystemUnitScale(UNITS_METERS);
+    const double usdUnitsPerMeter = pxr::UsdGeomGetStageMetersPerUnit(stage);
+    const double rescaleFactor = usdUnitsPerMeter / maxUnitsPerMeter;
+    return rescaleFactor;
+}
+
+void UniqueNameGenerator::Reset() { existingNames.clear(); }
+
+short FindParamId(IParamBlock2* pb2, const wchar_t* name)
+{
+    ParamBlockDesc2* pbDesc = pb2->GetDesc();
+    int              paramIndex = pbDesc->NameToIndex(name);
+    return pbDesc->IndextoID(paramIndex);
+}
+
+std::string MaxStringToUsdString(const wchar_t* utf16EncodedWideString)
+{
+    std::string utf8EncodedStr = UTF8Str::FromMCHAR(utf16EncodedWideString).data();
+    return utf8EncodedStr;
+}
+
+std::string UsdStringToLower(std::string utf8EncodedString)
+{
+    std::transform(
+        utf8EncodedString.begin(),
+        utf8EncodedString.end(),
+        utf8EncodedString.begin(),
+        [](unsigned char c) { return std::tolower(c); });
+    return utf8EncodedString;
+};
+
+WStr UsdStringToMaxString(const std::string& utf8EncodedString)
+{
+    // Build a WStr. The returned WStr will be UTF16 encoded.
+    return TSTR::FromUTF8(utf8EncodedString.c_str());
+}
+
+bool HasUnicodeCharacter(const std::string& str)
+{
+    // An ASCII character uses only the lower 7 bits of a char (values 0-127).
+    // A non-ASCII Unicode character encoded in UTF-8 uses char elements that all have the upper bit
+    // set.
+    for (const auto c : str) {
+        if (static_cast<unsigned char>(c) > 127) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void ConvertFrames(
+    INode*                                                                  node,
+    std::function<void(Object*, const TimeValue&, const pxr::UsdTimeCode&)> convertFrame,
+    const TimeConfig&                                                       usdTimeConfig,
+    std::function<Interval(Object*, const TimeValue&)>                      objectValidityOverride)
+{
+    const TimeValue startTime = usdTimeConfig.GetStartTime();
+    const TimeValue endTime = usdTimeConfig.GetEndTime();
+    const int       timeStep = usdTimeConfig.GetTimeStep();
+
+    for (TimeValue timeVal = startTime; timeVal <= endTime;) {
+        pxr::UsdTimeCode usdTimeCode;
+        auto             objectWS = node->EvalWorldState(timeVal);
+        // also call any additional object validity evaluation method defined by the caller
+        // the default additional method returns a FOREVER validity interval
+        Interval additionalObjectEvaluationValidity = objectValidityOverride(objectWS.obj, timeVal);
+
+        // If the object is not animated, we only need to convert a single frame, at the default
+        // timeCode.
+        if (!usdTimeConfig.IsAnimated()) {
+            usdTimeCode = pxr::UsdTimeCode::Default();
+            convertFrame(objectWS.obj, timeVal, usdTimeCode);
+            break;
+        }
+
+        // Use the object validity interval to avoid exporting frames needlessly.
+        Interval validity = objectWS.Validity(timeVal);
+        // combine the validity intervals - the intersection of the intervals
+        validity &= additionalObjectEvaluationValidity;
+        const TimeValue lastValidTime = validity.End();
+
+        // The first frame we export should be the last from the validity interval applicable
+        // at usdTimeConfig.startFrame
+        if (timeVal == startTime && timeVal != lastValidTime && lastValidTime < endTime) {
+            timeVal = lastValidTime;
+            continue;
+        }
+
+        usdTimeCode = pxr::UsdTimeCode(double(timeVal) / double(GetTicksPerFrame()));
+        convertFrame(objectWS.obj, timeVal, usdTimeCode);
+
+        // The next frame we are interested in, is the last frame where the object is
+        // still valid in this state, or the first frame of the next validity interval, if
+        // we were already at the end of an interval.
+        if (lastValidTime != timeVal) {
+            // If the validity interval goes beyond the frame range we are interested in,
+            // we don't need to specify another frame, as the last frame we set is still valid.
+            if (lastValidTime > endTime) {
+                break;
+            }
+            timeVal = lastValidTime;
+        } else {
+            if (timeVal == endTime) {
+                break;
+            }
+            // Calculate the next frame to convert, make sure the endFrame is converted.
+            timeVal = std::min(timeVal + timeStep, endTime);
+        }
+    }
+}
+
+std::pair<pxr::VtArray<TimeValue>, pxr::VtArray<pxr::UsdTimeCode>>
+GetFramesFromValidityInterval(INode* node, const TimeConfig& usdTimeConfig)
+{
+    pxr::VtArray<TimeValue>        maxTimes;
+    pxr::VtArray<pxr::UsdTimeCode> usdTimes;
+
+    auto getFrames
+        = [&maxTimes,
+           &usdTimes](Object* obj, const TimeValue& timeVal, const pxr::UsdTimeCode& usdTimeCode) {
+              maxTimes.push_back(timeVal);
+              usdTimes.push_back(usdTimeCode);
+          };
+
+    ConvertFrames(node, getFrames, usdTimeConfig);
+    return { maxTimes, usdTimes };
+}
+
+std::vector<pxr::UsdTimeCode>
+GetUsdTimeSamplesForExport(const pxr::UsdStageWeakPtr& stage, const MaxUsd::TimeConfig& timeConfig)
+{
+    std::vector<pxr::UsdTimeCode> timeSamples;
+
+    const int       timeStep = timeConfig.GetTimeStep();
+    const TimeValue startTime = timeConfig.GetStartTime();
+    const TimeValue endTime = timeConfig.GetEndTime();
+    for (TimeValue timeVal = startTime; timeVal <= endTime;) {
+        timeSamples.emplace_back(GetUsdTimeCodeFromMaxTime(stage, timeVal));
+        if (timeVal == endTime) {
+            break;
+        }
+        timeVal = std::min(timeVal + timeStep, endTime);
+    }
+
+    return timeSamples;
+}
+
+bool IsBoneObject(Object* object)
+{
+    const auto classId = object->ClassID();
+    return classId == Class_ID(0x008a63c0, 0x00000000) || // Bone
+        classId == Class_ID(0x28bf6e8d, 0x2ecca840) ||    // BoneGeometry
+        classId == Class_ID(0x56ae72e5, 0x389b6659) ||    // CATPArent
+        classId == Class_ID(0x2e6a0c09, 0x43d5c9c0) ||    // CATBone
+        classId == Class_ID(0x00009125, 0x00000000) ||    // Biped_object
+        classId == Class_ID(0x73dc4833, 0x65c93caa);      // HubObject
+}
+
+std::vector<Modifier*> GetMaxMorpherModifiers(INode* node, bool enabledOnly)
+{
+    static const auto ClassID_Morpher = Class_ID(0x17bb6854, 0xa5cba2a3);
+
+    std::vector<Modifier*> morphers;
+    std::vector<Modifier*> allModifiers = GetAllModifiers(node, enabledOnly);
+
+    for (Modifier* m : allModifiers) {
+        if ((m->ClassID() != ClassID_Morpher) || (!m->IsEnabled() && enabledOnly)) {
+            continue;
+        }
+
+        morphers.emplace_back(m);
+    }
+
+    return morphers;
+}
+
+std::string GetNonLocalizedClassName(ClassDesc* classDesc)
+{
+#if MAX_VERSION_MAJOR >= 24
+    return MaxUsd::MaxStringToUsdString(classDesc->NonLocalizedClassName());
+#else
+    return MaxUsd::MaxStringToUsdString(classDesc->ClassName());
+#endif
+}
+
+pxr::SdfPath VerifyOrMakeSkelRoot(
+    const pxr::UsdStagePtr& usdStage,
+    const pxr::SdfPath&     path,
+    const bool              autoGenerate)
+{
+    // Only try to auto-rename to SkelRoot if we're not already a descendant of one.
+    // Otherwise, verify that the user tagged it in a sane way.
+    if (UsdSkelRoot root = UsdSkelRoot::Find(usdStage->GetPrimAtPath(path))) {
+        // Verify that the SkelRoot isn't nested in another SkelRoot.
+        // This is necessary because UsdSkel doesn't handle nested skel roots
+        // very well currently; this restriction may be loosened in the future.
+        if (UsdSkelRoot root2 = UsdSkelRoot::Find(root.GetPrim().GetParent())) {
+            Log::Error(
+                "The SkelRoot {} is nested inside another "
+                "SkelRoot {}. This might cause unexpected behavior.",
+                root.GetPath().GetText(),
+                root2.GetPath().GetText());
+            return SdfPath();
+        }
+
+        return root.GetPath();
+    }
+
+    if (autoGenerate) {
+        // If auto-generating the SkelRoot, find the rootmost UsdGeomXform and turn
+        // it into a SkelRoot.
+        // XXX: It might be good to also consider model hierarchy here, and not
+        // go past our ancestor component when trying to generate the SkelRoot.
+        // (Example: in a scene with /World, /World/Char_1, /World/Char_2, we
+        // might want SkelRoots to stop at Char_1 and Char_2.) Unfortunately,
+        // the current structure precludes us from accessing model hierarchy
+        // here.
+        if (UsdPrim root = FindRootmostXformOrSkelRoot(usdStage, path)) {
+            UsdSkelRoot::Define(usdStage, root.GetPath());
+            return root.GetPath();
+        }
+
+        if (path.IsRootPrimPath()) {
+            Log::Error(
+                "The prim {} is a root prim, so it has no ancestors that"
+                " that can be converted to a SkelRoot. (USD requires that skinned meshes"
+                " and skeletons be encapsulated under a SkelRoot.)",
+                path.GetText());
+        } else {
+            Log::Error(
+                "Could not find an ancestor of the prim {} "
+                "that can be converted to a SkelRoot. (USD requires that skinned meshes"
+                " and skeletons be encapsulated under a SkelRoot.)",
+                path.GetText());
+        }
+    }
+
+    return SdfPath();
+}
+
+UsdPrim FindRootmostXformOrSkelRoot(UsdStagePtr stage, const SdfPath& path)
+{
+    UsdPrim currentPrim = stage->GetPrimAtPath(path);
+    UsdPrim rootmost;
+    while (currentPrim) {
+        if (currentPrim.IsA<UsdGeomXform>()) {
+            rootmost = currentPrim;
+        } else if (currentPrim.IsA<UsdSkelRoot>()) {
+            rootmost = currentPrim;
+        }
+        currentPrim = currentPrim.GetParent();
+    }
+
+    return rootmost;
+}
+
+pxr::UsdPrim GetFirstNonInstanceProxyPrimAncestor(const pxr::UsdPrim& prim)
+{
+    pxr::UsdPrim nonProxyPrim = prim;
+
+    // Loop up ancestors of selected prim until we find a "non-instance proxy" prim
+    if (nonProxyPrim.IsInstanceProxy()) {
+        while (nonProxyPrim.IsInstanceProxy()) {
+            nonProxyPrim = nonProxyPrim.GetParent();
+        }
+    }
+
+    return nonProxyPrim;
+}
+
+pxr::UsdPrim GetPrimOrAncestorWithKind(const pxr::UsdPrim& prim, const pxr::TfToken& kind)
+{
+    pxr::UsdPrim iterPrim = prim;
+    pxr::TfToken primKind;
+
+    while (iterPrim) {
+        if (pxr::UsdModelAPI(iterPrim).GetKind(&primKind)
+            && pxr::KindRegistry::IsA(primKind, kind)) {
+            break;
+        }
+
+        iterPrim = iterPrim.GetParent();
+    }
+
+    return iterPrim;
+}
+
+pxr::SdfLayerRefPtr
+CreateOrOverwriteLayer(const pxr::SdfFileFormatConstPtr& fileFormat, const std::string& identifier)
+{
+    // The layer could already be in memory...(previous version loaded in a stage)
+    pxr::SdfLayerRefPtr matLayer = pxr::SdfLayer::Find(identifier);
+
+    if (matLayer) {
+        // If so, clear it - it will be overridden.
+        matLayer->Clear();
+        return matLayer;
+    }
+
+    return pxr::SdfLayer::New(fileFormat, identifier);
+}
+
+bool SetPrimHiddenFromCA(IParamBlock2* usdCustomAttributePb, pxr::UsdPrim& translatedPrim)
+{
+    // usd_hidden
+    MetaData::ParameterValue hiddenVal;
+    bool hasHiddenCA = GetUsdMetaDataValue(usdCustomAttributePb, MetaData::Hidden, 0, hiddenVal);
+    if (hasHiddenCA) {
+        return translatedPrim.SetHidden(hiddenVal.boolValue);
+    }
+    return false;
+}
+
+bool SetPrimKindFromCA(IParamBlock2* usdCustomAttributePb, pxr::UsdPrim& translatedPrim)
+{
+    // usd_kind
+    MetaData::ParameterValue kindVal;
+    bool hasKindCA = GetUsdMetaDataValue(usdCustomAttributePb, MetaData::Kind, 0, kindVal);
+    if (hasKindCA && !kindVal.strValue.empty()) {
+        std::string sKind(MaxStringToUsdString(kindVal.strValue.c_str()));
+        TfToken     kind(sKind);
+
+        if (!KindRegistry::HasKind(kind)) {
+            Log::Warn(
+                L"Unknown kind={0} detected but will still be exported for object: {1}",
+                kindVal.strValue,
+                std::wstring(
+                    translatedPrim.GetName().GetString().begin(),
+                    translatedPrim.GetName().GetString().end()));
+        }
+        return UsdModelAPI(translatedPrim).SetKind(kind);
+    }
+    return false;
+}
+
+bool SetPrimPurposeFromCA(IParamBlock2* usdCustomAttributePb, UsdPrim& translatedPrim)
+{
+    // usd_purpose
+    MetaData::ParameterValue purposeVal;
+    bool hasPurposeCA = GetUsdMetaDataValue(usdCustomAttributePb, MetaData::Purpose, 0, purposeVal);
+    if (hasPurposeCA && !purposeVal.strValue.empty()) {
+        std::string sPurpose(MaxStringToUsdString(purposeVal.strValue.c_str()));
+        TfToken     purpose(sPurpose);
+        if (purpose != UsdGeomTokens->default_) {
+            UsdAttribute purposeAttr = UsdGeomImageable(translatedPrim).CreatePurposeAttr();
+            return purposeAttr.Set(purpose);
+        }
+    }
+    return false;
+}
+
+std::vector<ISkin*> GetMaxSkinModifiers(INode* node, bool enabledOnly)
+{
+    std::vector<ISkin*> skins;
+    const auto&         allMods = GetAllModifiers(node, enabledOnly);
+    for (const auto& mod : allMods) {
+        if (auto* skin = static_cast<ISkin*>(mod->GetInterface(I_SKIN))) {
+            skins.emplace_back(skin);
+        }
+    }
+    return skins;
+}
+
+// From maxwrapr.cpp
+ReferenceTarget* _FindFirstNonXRefTarg(IXRefItem* pXRefItem)
+{
+    ReferenceTarget* pFirstNonXRefTarg = nullptr;
+    while (pXRefItem) {
+        pFirstNonXRefTarg = pXRefItem->GetSrcItem(false);
+        pXRefItem = nullptr;
+        if (pFirstNonXRefTarg) {
+            pXRefItem = static_cast<IXRefItem*>(pFirstNonXRefTarg->GetInterface(IID_XREF_ITEM));
+        }
+    }
+    return pFirstNonXRefTarg;
+}
+
+// From maxmods.cpp
+Object* _GetNonXRefObject(Object* obj)
+{
+    IXRefItem* pXRefItem
+        = obj ? static_cast<IXRefItem*>(obj->GetInterface(IID_XREF_ITEM)) : nullptr;
+    Object* pFirstNonXRef = nullptr;
+    if (pXRefItem) {
+        pFirstNonXRef = dynamic_cast<Object*>(_FindFirstNonXRefTarg(pXRefItem));
+    }
+    return pFirstNonXRef ? pFirstNonXRef : obj;
+}
+
+// Implementation heavily inspired from maxscript $.modifiers[...] (maxmods.cpp / _get_modifier())
+std::vector<Modifier*> GetAllModifiers(INode* node, bool enabledOnly)
+{
+    std::vector<Modifier*> allModifiers;
+
+    SClass_ID       superClass;
+    IDerivedObject* derObject;
+
+    // First,  world-space modifiers.
+    if ((derObject = node->GetWSMDerivedObject()) != nullptr) {
+        for (int i = 0; i < derObject->NumModifiers(); i++) {
+            const auto mod = derObject->GetModifier(i);
+            if (!mod->IsEnabled() && enabledOnly) {
+                continue;
+            }
+            allModifiers.push_back(mod);
+        }
+    }
+
+    // Next, get object-space modifiers.
+    Object* obj = _GetNonXRefObject(node->GetObjectRef());
+    if ((superClass = obj->SuperClassID()) == GEN_DERIVOB_CLASS_ID) {
+        while (superClass == GEN_DERIVOB_CLASS_ID) {
+            derObject = static_cast<IDerivedObject*>(obj);
+            for (int i = 0; i < derObject->NumModifiers(); i++) {
+                const auto mod = derObject->GetModifier(i);
+                if (!mod->IsEnabled() && enabledOnly) {
+                    continue;
+                }
+                allModifiers.push_back(mod);
+            }
+            obj = _GetNonXRefObject(derObject->GetObjRef());
+            superClass = obj ? obj->SuperClassID() : 0;
+        }
+    }
+    return allModifiers;
+}
+
+pxr::GfMatrix4d GetNodeTransform(INode* sourceNode, TimeValue time, bool YUp)
+{
+    const auto      nodeTransform = sourceNode->GetNodeTM(time);
+    pxr::GfMatrix4d objectTransformUsd = MaxUsd::ToUsd(nodeTransform);
+    MaxUsd::MathUtils::RoundMatrixValues(objectTransformUsd, std::numeric_limits<float>::digits10);
+
+    if (YUp) {
+        MaxUsd::MathUtils::ModifyTransformZToYUp(objectTransformUsd);
+    }
+    return objectTransformUsd;
+}
+
+pxr::GfMatrix4d GetBindTransform(
+    MaxUsd::BindTransformElement element,
+    INode*                       node,
+    ISkin*                       skinMod,
+    bool                         YUp,
+    bool                         considerObjectOffset)
+{
+    pxr::GfMatrix4d bindTransformUsd;
+    bindTransformUsd.SetIdentity();
+
+    if (!skinMod || !node) {
+        return bindTransformUsd;
+    }
+
+    Matrix3 nodeBindTransform;
+
+    // GetBoneInitTM and GetSkinInitTM returns the same error value, in case they fail
+    switch (element) {
+    case BindTransformElement::Bone: {
+        if (skinMod->GetBoneInitTM(node, nodeBindTransform) == SKIN_INVALID_NODE_PTR) {
+            return bindTransformUsd;
+        }
+        break;
+    }
+    case BindTransformElement::Mesh: {
+        if (skinMod->GetSkinInitTM(node, nodeBindTransform) == SKIN_INVALID_NODE_PTR) {
+            return bindTransformUsd;
+        }
+        if (!considerObjectOffset) {
+            nodeBindTransform = MaxUsd::GetMaxObjectOffsetTransform(node) * nodeBindTransform;
+        }
+        break;
+    }
+    default: {
+        return bindTransformUsd;
+    }
+    }
+
+    bindTransformUsd = ToUsd(nodeBindTransform);
+
+    MathUtils::RoundMatrixValues(bindTransformUsd, std::numeric_limits<float>::digits10);
+    MathUtils::FixNonUniformScaling(bindTransformUsd);
+
+    if (YUp) {
+        MathUtils::ModifyTransformZToYUp(bindTransformUsd);
+    }
+
+    return bindTransformUsd;
+}
+
+pxr::GfMatrix4d
+GetPivotTransform(const pxr::UsdGeomXformable& xformable, const pxr::UsdTimeCode& time)
+{
+    // We only consider simple pivots, more specialized pivots are not supported (rotate / scale
+    // pivots).
+    pxr::GfMatrix4d pivotTransform;
+    pivotTransform.SetIdentity();
+
+    bool       pivotFound = false;
+    bool       pivotInverseFound = false;
+    const auto pivotToken = pxr::TfToken("xformOp:translate:pivot");
+    const auto pivotInverseToken = pxr::TfToken("!invert!xformOp:translate:pivot");
+
+    bool resetStack = false;
+    auto xformOps = xformable.GetOrderedXformOps(&resetStack);
+
+    for (size_t i = 0; i < xformOps.size(); ++i) {
+        const pxr::UsdGeomXformOp& xformop = xformOps[i];
+        if (xformop.GetOpName() == pivotToken) {
+            pivotFound = true;
+            pivotTransform = xformop.GetOpTransform(time);
+            if (pivotInverseFound) {
+                break;
+            }
+        }
+        // Make sure the pivot and its inverse are present.
+        // Otherwise we cant use the pivot as a pivot, as it will actually contribute
+        // to the fully composed transform.
+        else if (xformop.GetOpName() == pivotInverseToken) {
+            pivotInverseFound = true;
+            if (pivotFound) {
+                break;
+            }
+        }
+    }
+
+    if (!pivotFound || !pivotInverseFound) {
+        return pivotTransform;
+    }
+    return pivotTransform;
+}
+
+HasDependentSkinProc::HasDependentSkinProc(ReferenceTarget* node) { this->node = node; }
+
+int HasDependentSkinProc::proc(ReferenceMaker* rmaker)
+{
+    if (rmaker != node) {
+        if (auto skin = static_cast<ISkin*>(rmaker->GetInterface(I_SKIN))) {
+            if (MaxSDKSupport::IsModifierDeleted(static_cast<Modifier*>(rmaker))) {
+                return DEP_ENUM_CONTINUE;
+            }
+            // Make sure the node is an actual bone. Nodes may have dependent
+            // skins for other reasons.
+            for (int i = 0; i < skin->GetNumBones(); ++i) {
+                if (node == skin->GetBone(i)) {
+                    foundSkinsMod.emplace_back(skin);
+                    return DEP_ENUM_CONTINUE;
+                }
+            }
+        }
+    }
+    return DEP_ENUM_CONTINUE;
+}
+
+HasDependentMorpherProc::HasDependentMorpherProc(INode* target) { this->node = target; }
+
+int HasDependentMorpherProc::proc(ReferenceMaker* rmaker)
+{
+    static const auto ClassID_Morpher = Class_ID(0x17bb6854, 0xa5cba2a3);
+    auto              rmakerClassId = rmaker->ClassID();
+
+    if (rmaker == node) {
+        return DEP_ENUM_CONTINUE;
+    }
+
+    if (IsMorpherDependentOnNode(dynamic_cast<INode*>(rmaker), node)) {
+        // morpher depends on the node, stop the search
+        hasDependentMorpher = true;
+        return DEP_ENUM_HALT;
+    }
+
+    return DEP_ENUM_CONTINUE;
+}
+
+bool HasDependentMorpherProc::IsMorpherDependentOnNode(INode* morpherModifierNode, INode* checkNode)
+{
+    static const TSTR isMorpherDependentScript = LR"(
+		fn isMorpherDependent originalNodeHandle targetNodeHandle = (
+			local isDependent = false
+
+			local originalNode = maxOps.getNodeByHandle originalNodeHandle
+			local targetNode = maxOps.getNodeByHandle targetNodeHandle
+
+			modi = (getModifierByClass originalNode Morpher)
+
+			if iskindof modi Modifier and IsValidMorpherMod modi do
+			(
+				local numberOfChannels = (WM3_NumberOfChannels modi)
+				for channel = 1 to numberOfChannels do
+				(
+					numberOfProgressiveMorphers = (WM3_NumberOfProgressiveMorphs modi channel)
+					for progressiveMorpher = 1 to numberOfProgressiveMorphers do
+					(
+						local progMorphNode = (WM3_GetProgressiveMorphNode modi channel progressiveMorpher)
+						if progMorphNode != undefined and progMorphNode == targetNode do
+						(
+							isDependent = true
+						)
+					)
+				)
+			)
+
+			return isDependent
+		)
+		isMorpherDependent )";
+
+    if (!morpherModifierNode || !checkNode) {
+        return false;
+    }
+
+    FPValue            rvalue;
+    std::wstringstream ss;
+    ss << getModifierByClassScript << isMorpherDependentScript << morpherModifierNode->GetHandle()
+       << L" ";
+    ss << checkNode->GetHandle() << L'\n' << L'\0';
+    return ExecuteMAXScriptScript(
+               ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+        && rvalue.type == TYPE_BOOL && rvalue.b;
+}
+
+int GetSceneObjectCount()
+{
+    FPValue rvalue;
+    BOOL    executeReturn = FALSE;
+    executeReturn = ExecuteMAXScriptScript(
+        L"objects.count", MAXScript::ScriptSource::NonEmbedded, false, &rvalue);
+    return executeReturn ? rvalue.i : 0;
+}
+
+std::string
+ResolveToken(const std::string& str, const std::string& token, const std::string& replacement)
+{
+    std::string result = str;
+    size_t      pos = result.find(token);
+    while (pos != std::string::npos) {
+        result.replace(pos, token.length(), replacement);
+        pos = result.find(token, pos + replacement.length());
+    }
+    return result;
+}
+
+INodeTab GetReferencingNodes(Object* object)
+{
+    ULONG handle = 0;
+    object->NotifyDependents(FOREVER, (PartID)&handle, REFMSG_GET_NODE_HANDLE);
+    INode* firstNode = GetCOREInterface()->GetINodeByHandle(handle);
+    if (!firstNode) {
+        return {};
+    }
+    INodeTab nodes;
+    IInstanceMgr::GetInstanceMgr()->GetInstances(*firstNode, nodes);
+    return nodes;
+}
+
+const pxr::GfRange3d
+ComputeTotalExtent(const pxr::GfRange3d& extent, const pxr::VtMatrix4dArray& transformList)
+{
+    pxr::GfRange3d totalExtent;
+    if (!extent.IsEmpty()) {
+        for (const auto& transform : transformList) {
+            auto transformedMin = transform.Transform(extent.GetMin());
+            auto transformedMax = transform.Transform(extent.GetMax());
+
+            // After the transform, need to make sure all components are actual the mins/maxs
+            pxr::GfVec3d min = { std::min(transformedMin[0], transformedMax[0]),
+                                 std::min(transformedMin[1], transformedMax[1]),
+                                 std::min(transformedMin[2], transformedMax[2]) };
+            pxr::GfVec3d max = { std::max(transformedMin[0], transformedMax[0]),
+                                 std::max(transformedMin[1], transformedMax[1]),
+                                 std::max(transformedMin[2], transformedMax[2]) };
+            totalExtent.ExtendBy({ min, max });
+        }
+    }
+
+    return totalExtent;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/TranslationUtils.h b/src/MaxUsd/Utilities/TranslationUtils.h
new file mode 100644
index 0000000..7662ec3
--- /dev/null
+++ b/src/MaxUsd/Utilities/TranslationUtils.h
@@ -0,0 +1,773 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/usd/usd/common.h>
+
+#include <MaxUsd.h>
+#include <inode.h>
+#pragma warning(push)
+#pragma warning(disable : 4275) // non dll-interface class 'boost::python::api::object' used as base
+                                // for dll-interface struct 'boost::python::detail::list_base'
+#include <pxr/usd/usdGeom/primvar.h>
+#pragma warning(pop)
+#include "TimeUtils.h"
+
+#include <pxr/usd/usd/stageCache.h>
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdUtils/stageCache.h>
+
+// MAXX-63363: VS2019 v142: <experimental/filesystem> is deprecated and superseded by the C++17
+// <filesystem> header
+#if _MSVC_LANG > 201402L
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#endif
+
+class IParamBlock2;
+class ISkin;
+class Modifier;
+
+static const TSTR getModifierByClassScript = LR"(
+	fn getModifierByClass obj modclass = (
+		local foundMod = undefined
+		local mods = obj.modifiers
+		local mCount = mods.count
+		if mCount > 0 then (
+			for i = 1 to mCount while foundMod == undefined do (
+				if classOf mods[i] == modclass then (
+					foundMod = mods[i]
+				)
+			)
+		)
+		return foundMod
+	)
+)";
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Creates a prim, or returns it for edition if already existing.
+ * \tparam T The prim's class.
+ * \param stage Stage on which to create or fetch the prim.
+ * \param primPath The path of the prim.
+ * \param token The type of the prim to create.
+ * \return The prim.
+ */
+template <class T>
+T FetchOrCreatePrim(const pxr::UsdStagePtr stage, const pxr::SdfPath& primPath, pxr::TfToken token)
+{
+    // Fetch or create the target prim. In a typical export scenario, a new prim will be defined
+    // here.
+    T prim = T(stage->GetPrimAtPath(primPath));
+    if (!prim) {
+        // Using the sdf apis as such instead of UsdStage::Define prim is much faster.
+        {
+            pxr::SdfChangeBlock changeBlock;
+            const auto prim_spec = pxr::SdfCreatePrimInLayer(stage->GetRootLayer(), primPath);
+            prim_spec->SetSpecifier(pxr::SdfSpecifierDef);
+            prim_spec->SetTypeName(token);
+        }
+        prim = T(stage->GetPrimAtPath(primPath));
+    }
+    return prim;
+}
+
+/**
+ * \brief Checks if a WSM is applied, and if a transform is required to properly represent it
+ * on the USD prim exported from the given node. Unless the object is at the identity, we need
+ * to bring back the mesh's points back into local space, so that once in the USD hierarchy, they
+ * show up at the right location.
+ * \param node The node to check for any applied World Space Modifier..
+ * \param time The time at which to query the node's object.
+ * \return True if a World Space Modifier is applied and the needs to be transformed to local space.
+ */
+MaxUSDAPI bool WsmRequiresTransformToLocalSpace(INode* node, const TimeValue& time);
+
+/**
+ * \brief Computes the Object-Offset Transform for a given node.
+ * \param node The 3ds Max node referencing the object for which to get the offset transform.
+ * \param time The Max time at which to get the transform.
+ * \return The Object-Offset Transform.
+ */
+MaxUSDAPI Matrix3 GetMaxObjectOffsetTransform(INode* node);
+
+/**
+ * \brief Applies a node's object offset transform. Note that for geometric nodes with an active
+ * World Space Modifier, the offset wil not be applied, as it is already considered by the points
+ * which are now in world space.
+ * \param node The node with the object-offset.
+ * \param xformable The xformable onto which to apply the transform.
+ * \param time The Max time at which to apply the transform.
+ */
+MaxUSDAPI void
+ApplyObjectOffsetTransform(INode* node, pxr::UsdGeomXformable& xformable, const TimeValue& time);
+
+/**
+ * \brief Checks whether the given channel id is valid. In Max, there is a limit of 100
+ * regular channels, plus hidden channels (MAP_ALPHA, and MAP_SHADING).
+ * \param channel The channel Id to check.
+ * \return True if the channel is valid, false otherwise.
+ */
+MaxUSDAPI bool IsValidChannel(int channel);
+
+/**
+ * \brief Create's a valid usd identifier (token) from a given string.
+ * \param identifier The source identifier.
+ * \param validIdentifier The created valid identifier.
+ * \return True if the given string was itself valid, false otherwise.
+ */
+MaxUSDAPI bool GetValidIdentifier(const std::wstring& identifier, std::string& validIdentifier);
+
+/**
+ * \brief Returns the dimenstion for a given type.
+ * \param type The type for which to get the dimension.
+ * \return The dimension.
+ */
+MaxUSDAPI size_t GetTypeDimension(const pxr::SdfValueTypeName& type);
+
+/**
+ * \brief Validates that a USD attribute/primvar's data can be applied onto a given max mesh.
+ * \param valueCount Length of the values array.
+ * \param indices The data indices.
+ * \param maxMesh The Max mesh against which to validate the mapped data.
+ * \param interpolation The interpolation used for the attribute. The function will also make sure that
+ * this interpolation is valid.
+ * \param isIndexed Whether or not an index is used for the data. It would not be enough to only specify
+ * an empty index array, as this is one of the things we must validate.
+ * \return True if the mapped data can be applied to the mesh, false otherwise.
+ */
+MaxUSDAPI bool ValidateMappedDataForMesh(
+    size_t                valueCount,
+    const pxr::VtIntArray indices,
+    const MNMesh&         maxMesh,
+    const pxr::TfToken&   interpolation,
+    bool                  isIndexed);
+
+/**
+ * \brief Checks if an attribute has been authored on a given Usd time code.
+ * \param att Usd attribute to be checked if it has been authored.
+ * \param timeCode Usd time used to check if the attribute has been authored.
+ * \return true if the attribute has been authored on the given time code; false otherwise.
+ */
+MaxUSDAPI bool IsAttributeAuthored(const pxr::UsdAttribute& att, const pxr::UsdTimeCode& timeCode);
+
+/**
+ * \brief Attempts to figure out if a given path is a valid absolute path. This does not guarantee that the
+ * path will be usable, only that is seems correctly formed. Note that this method considers UNC
+ * paths valid absolute paths.
+ * \param path The path to check.
+ * \return True if the path is valid, false otherwise.
+ */
+MaxUSDAPI bool IsValidAbsolutePath(const fs::path& path);
+
+/**
+ * \brief Populate the INodeTab with all the nodes that can be considered instance of the given node in the USD
+ * (including the node itself).
+ * \param node The 3ds Max node for which to find all nodes who can be represented as instance of it
+ * \param instanceNodes INodeTab in which to add nodes that can be represented as instances
+ * \param eligibleNodes Set of nodes that can be used for instancing. If empty, all nodes will be considered eligible.
+ * \return true if 2 nodes or more are returned in the INodeTab. (the node itself + another node)
+ */
+MaxUSDAPI bool FindInstanceableNodes(
+    INode*                            node,
+    INodeTab&                         instancesNode,
+    const std::unordered_set<INode*>& eligibleNodes);
+
+/**
+ * \brief Goes down the object reference hierarchy to first object with modifier.
+ * If none is found return the base object.
+ * \param node node from which to find the first reference object that contain modifier
+ * \return the first reference object with modifier applied or the base object.
+ */
+MaxUSDAPI Object* GetFirstDerivedObjectWithModifier(INode* node);
+
+/**
+ * \brief Utility class to ensure every name is unique.
+ * To use, create an instance and call the GetName function with the desired name.
+ * The instance will keep track of the used name and return a name with a numbered postfix if the
+ *name is already used.
+ **/
+class UniqueNameGenerator
+{
+public:
+    MaxUSDAPI std::string GetName(const std::string& name);
+    MaxUSDAPI void        Reset();
+
+private:
+    std::unordered_set<std::string> existingNames;
+    std::string                     GetNextName(const std::string& name);
+};
+
+/**
+ * \brief RAII Scope guard for adding and remove a stage from the global stage cache.
+ */
+class StageCacheScopeGuard
+{
+public:
+    /**
+     * \brief Constructor, adds a stage to the global stage cache.
+     * \param stage The stage.
+     */
+    StageCacheScopeGuard(const pxr::UsdStageRefPtr& stage)
+    {
+        // If the stage was already present in the global cache, we don't need to add it,
+        // and we should not remove it in the destructor either. We want to leave the cache
+        // in the same state we found it.
+        auto& cache = pxr::UsdUtilsStageCache::Get();
+        if (!cache.Contains(cache.GetId(stage))) {
+            id = cache.Insert(stage);
+        }
+    }
+    /**
+     * \brief Destructor, removes the stage from the global stage cache.
+     */
+    ~StageCacheScopeGuard()
+    {
+        if (id.IsValid()) {
+            pxr::UsdUtilsStageCache::Get().Erase(id);
+        }
+    }
+
+private:
+    pxr::UsdStageCache::Id id;
+};
+
+/**
+ * \brief Returns the corresponding USD timecode to a max frame based on FPS ratios.
+ * \param stage The stage from which to get the USD FPS.
+ * \param maxFrame The max frame to be converted.
+ * \return The converted max frame into USD time code based on FPS ratios.
+ */
+MaxUSDAPI pxr::UsdTimeCode
+          GetUsdTimeCodeFromMaxFrame(const pxr::UsdStageWeakPtr& stage, const double maxFrame);
+
+/**
+ * \brief Returns the corresponding max frame to a USD timecode based on FPS ratios.
+ * \param stage The stage from which to get the USD FPS.
+ * \param usdTimeCode The USD time code to be converted.
+ * \return The converted USD time code into max frame based on FPS ratios.
+ */
+MaxUSDAPI double
+GetMaxFrameFromUsdTimeCode(const pxr::UsdStageWeakPtr& stage, const pxr::UsdTimeCode usdTimeCode);
+
+/**
+ * \brief Returns the corresponding max TimeValue from a USD TimeCode based on FPS ratios.
+ * \param stage The stage from which to get the USD FPS.
+ * \param usdTimeCode The USD time code to be converted.
+ * \return The converted USD time code into max TimeValue based on FPS ratios.
+ */
+MaxUSDAPI TimeValue GetMaxTimeValueFromUsdTimeCode(
+    const pxr::UsdStageWeakPtr& stage,
+    const pxr::UsdTimeCode      usdTimeCode);
+
+/**
+ * \brief Returns the corresponding max frame to a USD timecode based on FPS ratios.
+ * \param stage The stage from which to get the USD FPS.
+ * \param usdTimeCode The USD time code to be convereted.
+ * \return The converted USD time code into max frame based on FPS ratios.
+ */
+MaxUSDAPI float
+GetMaxFrameFromUsdFrameTime(const pxr::UsdStageWeakPtr& stage, const pxr::UsdTimeCode usdFrame);
+
+/**
+ * \brief Returns the corresponding USD timecode from a Max time value.
+ * \param stage The stage for which to get the time code (the definition of the USD time unit
+ * is configurable per-stage).
+ * \param timeValue The Max time value to convert.
+ * \return The USD time code.
+ */
+MaxUSDAPI pxr::UsdTimeCode
+          GetUsdTimeCodeFromMaxTime(const pxr::UsdStageWeakPtr& stage, const TimeValue& timeValue);
+
+/**
+ * \brief Returns the corresponding offset USD timecode from a Max time value, (custom) animation start frame
+ * and optional custom animation length.
+ * \param stage The stage for which to get the time code (the definition of the USD time unit
+ * is configurable per-stage).
+ * \param timeValue The Max time value to convert.
+ * \param customAnimStartFrame The start frame of the animation.
+ * \param customAnimationLength The length of the animation in frames.
+ * \return The USD time code.
+ */
+MaxUSDAPI pxr::UsdTimeCode GetOffsetTimeCode(
+    const pxr::UsdStageWeakPtr& stage,
+    const TimeValue&            timeValue,
+    const double                customAnimStartFrame,
+    const double                customAnimationLength = 0);
+
+/**
+ * \brief Returns the USD timecode equivalent to the current time in 3dsMax.
+ * \return The current USD timecode.
+ */
+MaxUSDAPI pxr::UsdTimeCode GetCurrentUsdTimeCode(const pxr::UsdStageWeakPtr& stage);
+
+/**
+ * \brief Gets the scaling factor from the given USD stage to the Max world.
+ * \param stage The stage to scale from.
+ * \return The scale factor from USD to Max.
+ */
+MaxUSDAPI double GetUsdToMaxScaleFactor(const pxr::UsdStageWeakPtr& stage);
+
+/**
+ * \brief Checks if the stage is using a 'Y' up axis. Helper method required to fix possible bad data
+ * in the stage where the up axis is defined with lowercase characters (not valid comparison token).
+ * \param stage The stage to for which the 'Y' up axis is verified.
+ * \return True if the stage is using a 'Y' up axis, False otherwise.
+ */
+MaxUSDAPI bool IsStageUsingYUpAxis(const pxr::UsdStageWeakPtr& stage);
+
+/**
+ * \brief Returns the root transform we need to give a stage to adjust for a different
+ * up-axis or unit setup.
+ * \param stage The stage to get the root transform for.
+ * \return The transform to adjust for the axis and units of the stage.
+ */
+MaxUSDAPI pxr::GfMatrix4d GetStageAxisAndUnitRootTransform(pxr::UsdStageWeakPtr stage);
+
+/**
+ * \brief Get the parameter Id for a given param name on a given ParamBlock
+ * \param pb the param block for which to find the given parameter
+ * \param name the name of the parameter for which to find the paramId
+ * \return the parameter Id or -1 if the parameter is not found.
+ */
+MaxUSDAPI short FindParamId(IParamBlock2* pb2, const wchar_t* name);
+
+/**
+ * \brief Converts 3dsMax utf16 encoded wide string into a utf8 encoded std::string for USD
+ * \param utf16EncodedWideString wide string coming from 3dsMax, expected to be utf16 encoded
+ * \return utf8 encoded std::string
+ */
+MaxUSDAPI std::string MaxStringToUsdString(const wchar_t* utf16EncodedWideString);
+
+/**
+ * \brief Converts usd utf8 encoded string into a lowercase version of itself
+ * \param utf8EncodedString utf8 encoding string
+ * \return utf8EncodedString utf8 encoding string in lowercase
+ */
+MaxUSDAPI std::string UsdStringToLower(std::string utf8EncodedString);
+
+/**
+ * \brief Converts usd utf8 encoded string into a utf16 encoded wide string for 3dsMax
+ * \param utf8EncodedString utf8 encoding string
+ * \return utf16 encoded WStr
+ */
+MaxUSDAPI WStr UsdStringToMaxString(const std::string& utf8EncodedString);
+
+/**
+ * \brief Detects whether an std::string contains non-ascii characters.
+ * \return true if a non-ascii character is detected.
+ */
+MaxUSDAPI bool HasUnicodeCharacter(const std::string& str);
+
+/**
+ * \brief Convert a 3ds Max object to USD, over a specified frame range, while respecting the object's validity
+ * interval.
+ * \param node The node carrying the object to convert.
+ * \param convertFrame The conversion function to be used to convert a single frame.
+ * \param usdTimeConfig The time configuration, specifying the frames we want converted.
+ * \param objectValidityOverride An optional object validity evaluation; function returns the evaluated object validity
+ * interval The default method returns a FOREVER validity interval
+ */
+MaxUSDAPI void ConvertFrames(
+    INode*                                                                  node,
+    std::function<void(Object*, const TimeValue&, const pxr::UsdTimeCode&)> convertFrame,
+    const TimeConfig&                                                       usdTimeConfig,
+    std::function<Interval(Object*, const TimeValue&)>                      objectValidityOverride
+    = [](Object*, const TimeValue&) { return FOREVER; });
+
+/**
+ * \brief Returns a pair of vectors, specifying the 3dsMax timeValues and USD timeCodes we are exporting from
+ * and to respectively, computed from the validity interval of the object referenced by the given
+ * node. These are essentially "key frames" on the USD side. The export timeConfig is considered as
+ * well (for example would not return frames outside of the supplied time range.)
+ * \param node The 3dsMax node for which to get frames.
+ * \param usdTimeConfig  The export time config.
+ * \return A pair of arrays, the 3dsMax time values and associated USD time codes.
+ */
+MaxUSDAPI std::pair<pxr::VtArray<TimeValue>, pxr::VtArray<pxr::UsdTimeCode>>
+          GetFramesFromValidityInterval(INode* node, const TimeConfig& usdTimeConfig);
+
+/**
+ * \brief Converts the 3ds Max time configuration returning the equivalent Usd TimeCode samples.
+ * \param stage the usd stage for the 3ds Max time to Usd TimeCode conversion
+ * \param timeConfig 3ds Max time configuration to get the time interval for the conversion
+ * \return An array of UsdTimeCode with all UsdTimeCode in the interval
+ */
+MaxUSDAPI std::vector<pxr::UsdTimeCode>
+GetUsdTimeSamplesForExport(const pxr::UsdStageWeakPtr& stage, const MaxUsd::TimeConfig& timeConfig);
+
+/**
+ * \brief Checks whether or not an object is a Bone.
+ * \param object The object to check.
+ * \return True if the object is a bone, false otherwise.
+ */
+MaxUSDAPI bool IsBoneObject(Object* object);
+
+/**
+ * \brief Returns the non-localized class name.
+ * \param classDesc The class description from which to resolve the class name.
+ * \return The non-localized class name
+ */
+MaxUSDAPI std::string GetNonLocalizedClassName(ClassDesc* classDesc);
+
+/**
+ * \brief Gets the rootmost node on the stage and attempts to transform it into a SkelRoot node.
+ * Adapted from maya usd:
+ * https://git.autodesk.com/maya3d/maya-usd/blob/dev/lib/mayaUsd/fileio/translators/skelBindingsProcessor.cpp
+ * \param usdStage the stage to look for the SkelRoot prim
+ * \param path The prim path to start the search
+ * \param autoGenerate if true, this function will create a SkelRoot prim as the rootmost prim
+ */
+MaxUSDAPI pxr::SdfPath VerifyOrMakeSkelRoot(
+    const pxr::UsdStagePtr& usdStage,
+    const pxr::SdfPath&     path,
+    const bool              autoGenerate = true);
+
+/**
+ * \brief Returns the first non-instance proxy ancestor prim of the given prim.
+ * \param prim The prim to search from.
+ * \return The first non-instance ancestor prim.
+ */
+MaxUSDAPI pxr::UsdPrim GetFirstNonInstanceProxyPrimAncestor(const pxr::UsdPrim& prim);
+
+/**
+ * \brief Returns the closes ancestor that is of the given kind, the prim itself included.
+ * If no prim in the hierarchy matches the kind, returns an invalid prim.
+ * \param prim The prim to search from.
+ * \param kind The kind we are searching for.
+ * \return The closest ancestor matching the kind (prim included).
+ */
+MaxUSDAPI pxr::UsdPrim
+          GetPrimOrAncestorWithKind(const pxr::UsdPrim& prim, const pxr::TfToken& kind);
+
+/**
+ * \brief returns the path for the prim based on the given path and token.
+ * If another prim already existed on the path, the conflict will be solved and a new prim will
+ * be created.
+ * \tparam T Prim type that will be used to create the prim if one doesn't exist. The class type
+ * must define the function Define(stage,path).
+ * \param usdStage USD stage to test the path on.
+ * \param basePath Path to add the new prim as a child.
+ * \return The newly created prim of the given template type.
+ */
+template <class T>
+T VerifyOrMakePrimOfType(
+    const pxr::UsdStagePtr& usdStage,
+    const pxr::SdfPath&     basePath,
+    const pxr::TfToken&     primName)
+{
+    UniqueNameGenerator subsetNameGenerator;
+    std::string         currentPrimString = subsetNameGenerator.GetName(primName.GetString());
+    pxr::SdfPath        currentPath = basePath.AppendElementString(currentPrimString);
+
+    pxr::UsdPrim prim = usdStage->GetPrimAtPath(currentPath);
+    while (prim && !prim.IsA<T>()) {
+        currentPrimString = subsetNameGenerator.GetName(currentPrimString);
+        currentPath = basePath.AppendElementString(currentPrimString);
+        prim = usdStage->GetPrimAtPath(currentPath);
+    }
+
+    // if prim doesn't exist, create one and return
+    if (!prim) {
+        return T::Define(usdStage, currentPath);
+    }
+
+    return T(prim);
+}
+
+/**
+ * \brief Create a path at basePath/primName, but with a uniqueness check. If a prim already exists at
+ * that path, a number is added or incremented on the prim's name.
+ * \param usdStage The stage in which we are creating the prim.
+ * \param basePath The parent path of the prim we are creating.
+ * \param primName The prim name (to be ensured unique).
+ * \return The created unique path.
+ */
+inline pxr::SdfPath MakeUniquePrimPath(
+    const pxr::UsdStagePtr& usdStage,
+    const pxr::SdfPath&     basePath,
+    const pxr::TfToken&     primName)
+{
+    UniqueNameGenerator subsetNameGenerator;
+    std::string         currentPrimString = subsetNameGenerator.GetName(primName.GetString());
+    pxr::SdfPath        currentPath = basePath.AppendElementString(currentPrimString);
+
+    pxr::UsdPrim prim = usdStage->GetPrimAtPath(currentPath);
+    while (prim) {
+        currentPrimString = subsetNameGenerator.GetName(currentPrimString);
+        currentPath = basePath.AppendElementString(currentPrimString);
+        prim = usdStage->GetPrimAtPath(currentPath);
+    }
+
+    return currentPath;
+}
+
+/**
+ * \brief Create a prim at basePath/primName, but with a uniqueness check. If a prim already exists at
+ * that path, a number is added or incremented on the prim's name.
+ * \tparam T The type of prim to create.
+ * \param usdStage The stage in which we are creating the prim.
+ * \param basePath The parent path of the prim we are creating.
+ * \param primName The prim name (to be ensured unique).
+ * \return The created prim.
+ */
+template <class T>
+T MakeUniquePrimOfType(
+    const pxr::UsdStagePtr& usdStage,
+    const pxr::SdfPath&     basePath,
+    const pxr::TfToken&     primName)
+{
+    pxr::SdfPath uniquePath = MakeUniquePrimPath(usdStage, basePath, primName);
+    return T::Define(usdStage, uniquePath);
+}
+
+/**
+ * \brief Looks for the rootmost Xform os SkelRoot prim on a given stage.
+ * Adapted from maya usd
+ * https://git.autodesk.com/maya3d/maya-usd/blob/dev/lib/mayaUsd/fileio/translators/skelBindingsProcessor.cpp
+ * \param usdStage Stage to look for the root most Xform or SkelRoot prim
+ * \param Path to where start the search
+ * \return The found Xform or SkelRoot prim; returns a default prim if one can't be found
+ */
+MaxUSDAPI pxr::UsdPrim
+          FindRootmostXformOrSkelRoot(pxr::UsdStagePtr usdStage, const pxr::SdfPath& path);
+
+/**
+ * \brief Creates a new layer in memory given the identifier and file format. If a layer already
+ * exists with this identifier, it is cleared, and returned.
+ * \param fileFormat The file format for the layer.
+ * \param identifier The identifier for the layer.
+ * \return The created or overwritten layer.
+ */
+MaxUSDAPI pxr::SdfLayerRefPtr
+CreateOrOverwriteLayer(const pxr::SdfFileFormatConstPtr& fileFormat, const std::string& identifier);
+
+/**
+ * \brief Sets the usd Hidden metadata attribute on the given prim based on the given ParamBlock information.
+ * \param usdCustomAttributePb ParamBlock containing the prim hidden data
+ * \param translatedPrim prim where the metadata data should be set on
+ * \return true if the Hidden metadata was set; false otherwise
+ */
+MaxUSDAPI bool
+SetPrimHiddenFromCA(IParamBlock2* usdCustomAttributePb, pxr::UsdPrim& translatedPrim);
+
+/**
+ * \brief Sets the prim kind based on the ParamBlock information
+ * \param usdCustomAttributePb ParamBlock with the prim's kind data
+ * \param translatedPrim Prim to which the kind should be set on
+ * \return true if the Kind metadata was set; false otherwise
+ */
+MaxUSDAPI bool SetPrimKindFromCA(IParamBlock2* usdCustomAttributePb, pxr::UsdPrim& translatedPrim);
+
+/**
+ * \brief Sets the prim Purpose based on the ParamBlock information
+ * \param usdCustomAttributePb ParamBlock with the prim's purpose data
+ * \param translatedPrim prim to set the Purpose metadata on
+ * \return true if the Purpose metadata was set; false otherwise
+ */
+MaxUSDAPI bool
+SetPrimPurposeFromCA(IParamBlock2* usdCustomAttributePb, pxr::UsdPrim& translatedPrim);
+
+/**
+ * \brief Gets all Max Skin modifiers interfaces from a given Max node.
+ * \param node Max node to look for the skin modifier
+ * \param enabledOnly If true, only return enabled skins.
+ * \return vector containing all Max skin modifiers found
+ */
+MaxUSDAPI std::vector<ISkin*> GetMaxSkinModifiers(INode* node, bool enabledOnly = true);
+
+/**
+ * \brief Gets all Max Morphers modifiers interfaces from a given Max node.
+ * \param node Max node to look for Morpher modifiers.
+ * \param enabledOnly If true, only return enabled morphers.
+ * \return vector containing all Max Morphers modifiers found
+ */
+MaxUSDAPI std::vector<Modifier*> GetMaxMorpherModifiers(INode* node, bool enabledOnly = true);
+
+/**
+ * \brief Gets all modifiers applied on a node.
+ * \param node The node to get the modifiers from.
+ * \param enabledOnly If true, only return modifiers which are currently enabled.
+ * \return The modifiers.
+ */
+MaxUSDAPI std::vector<Modifier*> GetAllModifiers(INode* node, bool enabledOnly = true);
+
+/**
+ * \brief Simple struct to define a Prim, from its path and type.
+ */
+struct PrimDef
+{
+    pxr::SdfPath path;
+    pxr::TfToken type;
+};
+typedef std::vector<MaxUsd::PrimDef>   PrimDefVector;
+typedef std::shared_ptr<PrimDefVector> PrimDefVectorPtr;
+
+/**
+ * \brief When exporting 3dsMax nodes to USD Prims, we sometimes need use a separate
+ * Xform prim to encode the node's transform (so one Xform prim + another prim for the object
+ * itself). There are several scenarios where this is the case - a simple case is when
+ * an offset is applied onto the node's object. Indeed, object offsets should not be inherited,
+ * so we can't possibly use a single prim for the node (if we did, and the prim had children,
+ * the object offset would be inherited, which is a problem). This enum encodes the requirement
+ * to split a 3dsMax node into 2 prims (xform + object prim) from the object's perspective. Note
+ * that even is "never" is returned, the xform may still be forced, for example if the object is
+ * instanced.
+ */
+enum class XformSplitRequirement
+{
+    /// Always require a xform prim + object prim.
+    Always,
+    /// Requires a xform prim only if we had a non-identity object offset.
+    ForOffsetObjects,
+    /// Never require to generate an extra xform (at least for the object translation itself, other
+    /// things may come into play, like instancing, which may eventually force an Xform)
+    Never,
+};
+
+enum class BindTransformElement
+{
+    Mesh,
+    Bone
+};
+
+/**
+ * \brief When exporting a 3dsMax node to USD, this represent the need for a prim exported from a
+ * 3dsMax node to be assigned a material.
+ */
+enum class MaterialAssignRequirement
+{
+    // Default material assignment.
+    Default,
+    // No material assignment. No material necessary, or material assignment handled differently.
+    NoAssignment
+};
+
+/**
+ * \brief When exporting a 3dsMax node to USD, this represent the need for instancing to be automatically
+ * handled.
+ */
+enum class InstancingRequirement
+{
+    // Instancing handled automatically. Only the first instance will hit the Write() method.
+    Default,
+    // Instancing is not handled automatically, it is left to the prim writer to decided how to
+    // handle instancing, or not..
+    NoInstancing
+};
+
+/**
+ * \brief Gets the a 3dsmax node transform as Pixar Usd transform representation.
+ * \param sourceNode max node to get the transform from.
+ * \param time the time to evaluate the sourceNode transform at.
+ * \param YUp converts the sourceNode transform to use YUp axis.
+ */
+MaxUSDAPI pxr::GfMatrix4d GetNodeTransform(INode* sourceNode, TimeValue time, bool YUp);
+
+/**
+ * \brief Gets the mesh or bone transform used when bound to a skin modifier.
+ * \param element Defines if the function is getting a mesh or a bone bind transform
+ * \param node Max node containing the mesh or bone to be getting the transform from
+ * \param skinMod the skin modifier that cached the bind transform for the given node
+ * \param YUp if we should consider y or z axis to be the up
+ * \param considerObjectOffset if true, the object offset will be baked into the geometry
+ * \return the bind transform cached on the skin modifier for the passed node
+ */
+MaxUSDAPI pxr::GfMatrix4d GetBindTransform(
+    BindTransformElement element,
+    INode*               node,
+    ISkin*               skinMod,
+    bool                 YUp,
+    bool                 considerObjectOffset);
+
+/**
+ * \brief Returns the translate pivot defined on the xformable's xformOp stack.
+ * \param xformable The xformable to search in.
+ * \param time Time at which we should fetch the pivot.
+ * \return The translate pivot transform (identity matrix if no usable pivot was found).
+ */
+MaxUSDAPI pxr::GfMatrix4d
+          GetPivotTransform(const pxr::UsdGeomXformable& xformable, const pxr::UsdTimeCode& time);
+
+/**
+ * \brief Callback helper class for enumerating Max node dependents with skin modifiers.
+ * This class is a callback object for the ReferenceMaker::DoEnumDependentsImpl()
+ * and ReferenceMaker::DoEnumDependents() methods. The proc() method is called by the system.
+ */
+class HasDependentSkinProc : public DependentEnumProc
+{
+public:
+    ReferenceTarget*    node = nullptr;
+    std::vector<ISkin*> foundSkinsMod;
+
+    MaxUSDAPI HasDependentSkinProc(ReferenceTarget* target);
+
+    MaxUSDAPI int proc(ReferenceMaker* rmaker) override;
+};
+
+class HasDependentMorpherProc : public DependentEnumProc
+{
+public:
+    INode* node = nullptr;
+    bool   hasDependentMorpher = false;
+
+    MaxUSDAPI HasDependentMorpherProc(INode* target);
+
+    MaxUSDAPI int proc(ReferenceMaker* rmaker) override;
+
+private:
+    bool IsMorpherDependentOnNode(INode* morpherModifierNode, INode* checkNode);
+};
+
+/**
+ * \brief Returns the number of object currently in the 3dsmax Scene.
+ * \return The object count.
+ */
+MaxUSDAPI int GetSceneObjectCount();
+
+/**
+ * \brief Resolves a token in a string, every occurrence of the token in the string will be replaced by the provided string.
+ * \param str The string to resolve.
+ * \param token The token to replace.
+ * \param replacement The replacement string.
+ * \return The resolved string.
+ * */
+MaxUSDAPI std::string
+ResolveToken(const std::string& str, const std::string& token, const std::string& replacement);
+
+/**
+ * \brief Gets all nodes referencing a given object (more than one if instanced)
+ * \param object The object for which to get the nodes
+ * \return The nodes referencing the object.
+ */
+MaxUSDAPI INodeTab GetReferencingNodes(Object* object);
+
+/**
+ * \brief Computes the total extent of an object, taking into account all the transforms in the transform list.
+ * \param extent The object's extent.
+ * \param transformList The list of transforms to apply.
+ * \return The total extent.
+ */
+MaxUSDAPI const pxr::GfRange3d
+ComputeTotalExtent(const pxr::GfRange3d& extent, const pxr::VtMatrix4dArray& transformList);
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/TupleUtils.h b/src/MaxUsd/Utilities/TupleUtils.h
new file mode 100644
index 0000000..83bc691
--- /dev/null
+++ b/src/MaxUsd/Utilities/TupleUtils.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+/**
+ * \file Some Tuple related utilities.
+ *
+ * Include this file to have std::hash support for std::tuple
+ */
+
+namespace {
+
+template <std::size_t I = 0, typename... Ts>
+inline typename std::enable_if<I == sizeof...(Ts), std::size_t>::type
+HashTuple(const std::tuple<Ts...>& t)
+{
+    return 0;
+}
+
+template <std::size_t I = 0, typename... Ts>
+    inline typename std::enable_if
+    < I<sizeof...(Ts), size_t>::type HashTuple(const std::tuple<Ts...>& t)
+{
+    return std::hash<std::tuple_element_t<I, std::tuple<Ts...>>> {}(std::get<I>(t))
+        + HashTuple<I + 1>(t);
+}
+
+} // namespace
+
+namespace std {
+
+template <typename... Ts> struct hash<std::tuple<Ts...>>
+{
+    size_t operator()(const std::tuple<Ts...>& t) const noexcept { return HashTuple(t); }
+};
+
+} // namespace std
diff --git a/src/MaxUsd/Utilities/TypeUtils.h b/src/MaxUsd/Utilities/TypeUtils.h
new file mode 100644
index 0000000..b6f2701
--- /dev/null
+++ b/src/MaxUsd/Utilities/TypeUtils.h
@@ -0,0 +1,126 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MaxSupportUtils.h"
+
+#include <MaxUsd.h>
+
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/ipoint2.h>
+#include <Geom/matrix3.h>
+#include <Geom/point3.h>
+#else
+#include <ipoint2.h>
+#include <matrix3.h>
+#include <point3.h>
+#endif
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/vec2i.h>
+#include <pxr/base/gf/vec3d.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec4f.h>
+
+#include <Graphics/Matrix44.h>
+
+namespace MAXUSD_NS_DEF {
+
+inline pxr::GfVec2i ToUsd(IPoint2 p) { return pxr::GfVec2i(p.x, p.y); }
+
+inline pxr::GfVec3d ToUsd(Point3 p) { return pxr::GfVec3d(p.x, p.y, p.z); }
+
+inline pxr::GfMatrix4d ToUsd(Matrix3 m)
+{
+    pxr::GfMatrix4d r;
+
+    for (int i = 0; i < 4; ++i) {
+        r.SetRow3(i, ToUsd(m.GetRow(i)));
+    }
+
+    r.SetColumn(3, pxr::GfVec4d(0, 0, 0, 1));
+    return r;
+}
+
+inline pxr::GfMatrix4d ToUsd(MaxSDK::Graphics::Matrix44 m)
+{
+    pxr::GfMatrix4d r;
+    for (int i = 0; i < 4; ++i) {
+        r.SetRow(i, pxr::GfVec4d(pxr::GfVec4f(m.m[i])));
+    }
+
+    return r;
+}
+
+inline Point3 ToMax(pxr::GfVec3d p) { return Point3(p[0], p[1], p[2]); }
+
+inline Point3 ToMax(pxr::GfVec3f p) { return Point3(p[0], p[1], p[2]); }
+
+inline Point4 ToMax(pxr::GfVec4f p) { return Point4(p[0], p[1], p[2], p[3]); }
+
+inline MaxSDK::Graphics::Matrix44 ToMax(const pxr::GfMatrix4d& m)
+{
+    MaxSDK::Graphics::Matrix44 r;
+#pragma warning(push)
+#pragma warning(disable : 4244)
+    std::copy_n(m.data(), 16, static_cast<float*>(&r.m[0][0]));
+#pragma warning(pop)
+    return r;
+}
+
+template <class QuatType> bool ToMaxQuat(pxr::VtValue& quatValue, Quat& quat)
+{
+    if (!quatValue.CanCast<QuatType>()) {
+        return false;
+    }
+    const auto  usdQuat = quatValue.Cast<QuatType>().Get<QuatType>();
+    const auto& imaginary = usdQuat.GetImaginary();
+    quat.x = static_cast<float>(imaginary[0]);
+    quat.y = static_cast<float>(imaginary[1]);
+    quat.z = static_cast<float>(imaginary[2]);
+    // Inverse the quat to account for the difference in conventions (right-hand VS left-hand).
+    quat.w = -static_cast<float>(usdQuat.GetReal());
+    return true;
+}
+
+inline Matrix3 ToMaxMatrix3(const MaxSDK::Graphics::Matrix44& mat)
+{
+    Matrix3    matrix3;
+    const auto row1 = mat.m[0];
+    matrix3.SetRow(0, Point3(row1[0], row1[1], row1[2]));
+    const auto row2 = mat.m[1];
+    matrix3.SetRow(1, Point3(row2[0], row2[1], row2[2]));
+    const auto row3 = mat.m[2];
+    matrix3.SetRow(2, Point3(row3[0], row3[1], row3[2]));
+    const auto row4 = mat.m[3];
+    matrix3.SetRow(3, Point3(row4[0], row4[1], row4[2]));
+    return matrix3;
+}
+
+inline Matrix3 ToMaxMatrix3(const pxr::GfMatrix4d& mat)
+{
+    Matrix3    matrix3;
+    const auto row1 = mat.GetRow3(0).data();
+    matrix3.SetRow(0, Point3(row1[0], row1[1], row1[2]));
+    const auto row2 = mat.GetRow3(1).data();
+    matrix3.SetRow(1, Point3(row2[0], row2[1], row2[2]));
+    const auto row3 = mat.GetRow3(2).data();
+    matrix3.SetRow(2, Point3(row3[0], row3[1], row3[2]));
+    const auto row4 = mat.GetRow3(3).data();
+    matrix3.SetRow(3, Point3(row4[0], row4[1], row4[2]));
+    return matrix3;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/UiUtils.cpp b/src/MaxUsd/Utilities/UiUtils.cpp
new file mode 100644
index 0000000..491775f
--- /dev/null
+++ b/src/MaxUsd/Utilities/UiUtils.cpp
@@ -0,0 +1,75 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UiUtils.h"
+
+#include <Qt/QmaxMainWindow.h>
+#include <Qt/QmaxToolClips.h>
+
+#include <GetCOREInterface.h>
+#include <QtCore/QVariant.h>
+#include <QtWidgets/QMessageBox>
+#include <maxapi.h>
+
+namespace MAXUSD_NS_DEF {
+namespace Ui {
+
+bool AskYesNoQuestion(const std::wstring& text, const std::wstring& caption)
+{
+    QMessageBox::StandardButton result = QMessageBox::question(
+        GetCOREInterface()->GetQmaxMainWindow(),
+        QString::fromStdWString(caption),
+        QString::fromStdWString(text),
+        QMessageBox::Yes | QMessageBox::No,
+        QMessageBox::Yes);
+    return result == QMessageBox::StandardButton::Yes;
+}
+
+void DisableMaxToolClipsRecursively(QObject* object)
+{
+    MaxSDK::QmaxToolClips::disableToolClip(object);
+    for (const auto& child : object->findChildren<QObject*>()) {
+        MaxSDK::QmaxToolClips::disableToolClip(child);
+    }
+}
+
+void IterateOverChildrenRecursively(
+    QObject*                             parent,
+    const std::function<void(QObject*)>& callback,
+    bool                                 includingParent)
+{
+    if (parent) {
+        if (includingParent) {
+            callback(parent);
+        }
+        for (auto child : parent->children()) {
+            IterateOverChildrenRecursively(child, callback, true);
+        }
+    }
+}
+
+void DisableMaxAcceleratorsOnFocus(QWidget* widget, bool disableMaxAccelerators)
+{
+#ifdef IS_MAX2023_OR_GREATER
+    QtHelpers::DisableMaxAcceleratorsOnFocus(QWidget * widget, bool disableMaxAccelerators);
+#else
+    if (widget) {
+        static constexpr char noMaxAccelerators[] = "NoMaxAccelerators";
+        widget->setProperty(noMaxAccelerators, disableMaxAccelerators ? true : QVariant());
+    }
+#endif
+}
+} // namespace Ui
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/UiUtils.h b/src/MaxUsd/Utilities/UiUtils.h
new file mode 100644
index 0000000..9cb31c7
--- /dev/null
+++ b/src/MaxUsd/Utilities/UiUtils.h
@@ -0,0 +1,63 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <QtCore/QObject>
+
+#ifdef IS_MAX2023_OR_GREATER
+#include <Qt/QmaxHelpers.h>
+#endif
+
+namespace MAXUSD_NS_DEF {
+namespace Ui {
+
+/**
+ * \brief Asks a yes/no question to the user via a QMessageBox.
+ * \param text The question string.
+ * \param caption Caption for the message box.
+ * \return true if yes was selected, false otherwise.
+ */
+MaxUSDAPI bool AskYesNoQuestion(const std::wstring& text, const std::wstring& caption);
+
+/**
+ * \brief Disables 3dsmax's custom toolclips on an object and all its descendants.
+ * \param object The object to disable tooltips on.
+ */
+MaxUSDAPI void DisableMaxToolClipsRecursively(QObject* object);
+
+/** Iterates over all children of a QObject recursively and calls a callback on
+ * each of them (and optionally also the object itself).
+ * \param parent The parent object to iterate over.
+ * \param callback The callback to call on each child.
+ * \param includingParent If true, the callback will be called on the parent
+ *        object as well. */
+MaxUSDAPI void IterateOverChildrenRecursively(
+    QObject*                             parent,
+    const std::function<void(QObject*)>& callback,
+    bool                                 includingParent = true);
+
+/**
+ * \brief Disable or not max accelerator on focus. Wraps the MaxSDK QtHelper equivalent,
+ * to provide support for older max versions.
+ * \param widget The widget on which to set the flag.
+ * \param disableMaxAccelerators True to disable max accelerator.
+ */
+MaxUSDAPI void DisableMaxAcceleratorsOnFocus(QWidget* widget, bool disableMaxAccelerators);
+
+} // namespace Ui
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/UsdLinkUtils.cpp b/src/MaxUsd/Utilities/UsdLinkUtils.cpp
new file mode 100644
index 0000000..1090fda
--- /dev/null
+++ b/src/MaxUsd/Utilities/UsdLinkUtils.cpp
@@ -0,0 +1,104 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDLinkUtils.h"
+
+#include "TranslationUtils.h"
+
+namespace MAXUSD_NS_DEF {
+
+bool UpdateUsdSourceAttr(
+    INode*&            stageNode,
+    pxr::UsdAttribute& sourceAttr,
+    IParamBlock2*      paramBlock,
+    const ParamID&     stageParamId,
+    const ParamID&     attrPathParamId)
+{
+    const auto prevNode = stageNode;
+    const auto prevAttr = sourceAttr;
+    auto       prevPath = prevAttr.IsValid() ? prevAttr.GetPath() : pxr::SdfPath::EmptyPath();
+
+    auto hasChanged = [&stageNode, &sourceAttr, prevNode, prevPath]() {
+        const auto currNode = stageNode;
+        const auto currAttr = sourceAttr;
+        auto       currPath = currAttr.IsValid() ? currAttr.GetPath() : pxr::SdfPath::EmptyPath();
+        return currNode != prevNode || currPath != prevPath;
+    };
+
+    stageNode = nullptr;
+    sourceAttr = pxr::UsdAttribute {};
+
+    INode*   node = nullptr;
+    Interval valid = FOREVER;
+    paramBlock->GetValue(stageParamId, GetCOREInterface()->GetTime(), node, valid);
+
+    if (!node) {
+        return hasChanged();
+    }
+
+    const auto stageObject = dynamic_cast<USDStageObject*>(node->GetObjectRef());
+    if (!stageObject) {
+        return hasChanged();
+    }
+
+    stageNode = node;
+
+    const auto stage = stageObject->GetUSDStage();
+    if (!stage) {
+        return hasChanged();
+    }
+
+    const MCHAR* pathStr = nullptr;
+    valid = FOREVER;
+    paramBlock->GetValue(attrPathParamId, GetCOREInterface()->GetTime(), pathStr, valid);
+
+    const auto pathStdStr = MaxUsd::MaxStringToUsdString(pathStr);
+    if (pathStdStr.empty()) {
+        return hasChanged();
+    }
+
+    auto path = pxr::SdfPath { pathStdStr };
+
+    const auto attr = stage->GetAttributeAtPath(path);
+    if (!attr.IsValid()) {
+        return hasChanged();
+    }
+    sourceAttr = attr;
+
+    return hasChanged();
+}
+
+pxr::VtValue
+GetAttrValue(INode* stageNode, const pxr::UsdAttribute& attribute, const TimeValue& time)
+{
+    if (!stageNode || !attribute.IsValid()) {
+        return {};
+    }
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        return {};
+    }
+
+    auto  pb = stageObject->GetParamBlock(0);
+    float timeCodeParam;
+    pb->GetValue(RenderUsdTimeCode, time, timeCodeParam);
+    const auto   timeCode = timeCodeParam;
+    pxr::VtValue value;
+    attribute.Get(&value, timeCode);
+    return value;
+}
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/UsdLinkUtils.h b/src/MaxUsd/Utilities/UsdLinkUtils.h
new file mode 100644
index 0000000..07b7b43
--- /dev/null
+++ b/src/MaxUsd/Utilities/UsdLinkUtils.h
@@ -0,0 +1,128 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "TranslationUtils.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <MaxUsd.h>
+#include <interval.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Updates a USD source from a param block expected to contain a reference to a USD stage node,
+ * and a prim path. For example, a USDXformableController pulls its information from a USD
+ * Xformable, or a USD Camera objects from a UsdGeomCamera prim.
+ * \tparam T The schema over the prim at the given path.
+ * \param stageNode The stageNode that will be updated.
+ * \param source The source that will be updated (a USD schema over a USD prim)
+ * \param paramBlock The param block holding the information.
+ * \param stageParamId Parameter ID for the USD Stage node.
+ * \param primPathParamId Parameter ID for the USD Prim's path.
+ * \return True if something was updated, false otherwise.
+ */
+template <class T>
+bool UpdateUsdSource(
+    INode*&        stageNode,
+    T&             source,
+    IParamBlock2*  paramBlock,
+    const ParamID& stageParamId,
+    const ParamID& primPathParamId)
+{
+    const auto prevNode = stageNode;
+    const auto prevPrim = source.GetPrim();
+    auto       prevPath = prevPrim.IsValid() ? prevPrim.GetPath() : pxr::SdfPath::EmptyPath();
+
+    auto hasChanged = [&stageNode, &source, prevNode, prevPath]() {
+        const auto currNode = stageNode;
+        const auto currPrim = source.GetPrim();
+        auto       currPath = currPrim.IsValid() ? currPrim.GetPath() : pxr::SdfPath::EmptyPath();
+        return currNode != prevNode || currPath != prevPath;
+    };
+
+    stageNode = nullptr;
+    source = T {};
+
+    INode*   node = nullptr;
+    Interval valid = FOREVER;
+    paramBlock->GetValue(stageParamId, GetCOREInterface()->GetTime(), node, valid);
+
+    if (!node) {
+        return hasChanged();
+    }
+
+    const auto stageObject = dynamic_cast<USDStageObject*>(node->GetObjectRef());
+    if (!stageObject) {
+        return hasChanged();
+    }
+
+    stageNode = node;
+
+    const auto stage = stageObject->GetUSDStage();
+    if (!stage) {
+        return hasChanged();
+    }
+
+    const MCHAR* primPathStr = nullptr;
+    valid = FOREVER;
+    paramBlock->GetValue(primPathParamId, GetCOREInterface()->GetTime(), primPathStr, valid);
+
+    const auto pathStdStr = MaxUsd::MaxStringToUsdString(primPathStr);
+    if (pathStdStr.empty()) {
+        return hasChanged();
+    }
+
+    auto       path = pxr::SdfPath { pathStdStr };
+    const auto prim = stage->GetPrimAtPath(path);
+    if (!prim.IsValid() || !prim.IsA<T>()) {
+        return hasChanged();
+    }
+    source = T(prim);
+
+    return hasChanged();
+}
+
+/**
+ * \brief Updates a USD source attribute from a param block expected to contain a reference to a USD stage node,
+ * and an attribute path.
+ * \param stageNode The stageNode that will be updated.
+ * \param source The source that will be updated (a USD attibute on a USD prim)
+ * \param paramBlock The param block holding the information.
+ * \param stageParamId Parameter ID for the USD Stage node.
+ * \param attrPathParamId Parameter ID for the USD Prim's path.
+ * \return True if something was updated, false otherwise.
+ */
+MaxUSDAPI bool UpdateUsdSourceAttr(
+    INode*&            stageNode,
+    pxr::UsdAttribute& sourceAttr,
+    IParamBlock2*      paramBlock,
+    const ParamID&     stageParamId,
+    const ParamID&     attrPathParamId);
+
+/**
+ * Gets a USD attribute value from a USD Stage
+ * @param stageNode The node holding the stage object.
+ * @param attribute The USD attribute to get the value from.
+ * @param time The time at which to get the value. The TimeValue is converted to a UsdTimeCode,
+ * taking into account any animation parameters configured on the stage object.
+ * @return The attribute's value.
+ */
+MaxUSDAPI pxr::VtValue
+          GetAttrValue(INode* stageNode, const pxr::UsdAttribute& attribute, const TimeValue& time);
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/UsdToolsUtils.cpp b/src/MaxUsd/Utilities/UsdToolsUtils.cpp
new file mode 100644
index 0000000..6a3d1c1
--- /dev/null
+++ b/src/MaxUsd/Utilities/UsdToolsUtils.cpp
@@ -0,0 +1,212 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdToolsUtils.h"
+
+#include "MaxSupportUtils.h"
+
+#include <IPathConfigMgr.h>
+#include <Shlwapi.h>
+#include <maxapi.h>
+#include <regex>
+#include <shellapi.h>
+
+namespace MAXUSD_NS_DEF {
+namespace UsdToolsUtils {
+
+static const std::wstring pythonExeFlag = L"--python-exe";
+
+std::wstring _getQuotedPythonPath()
+{
+    IPathConfigMgr* pathMgr = IPathConfigMgr::GetPathConfigMgr();
+#ifdef IS_MAX2025_OR_GREATER
+    std::wstring pythonExe = pathMgr->GetDir(APP_MAX_SYS_ROOT_DIR).data();
+#else
+    std::wstring pythonExe = pathMgr->GetDir(APP_MAX_SYS_ROOT_DIR);
+#endif
+
+    // Relative path of the python exe has changed in 2023.
+#ifdef IS_MAX2023_OR_GREATER
+    pythonExe.append(L"/Python/python.exe");
+#else
+    pythonExe.append(L"/Python37/python.exe");
+#endif
+
+    return std::wstring(L"\"") + pythonExe + std::wstring(L"\"");
+}
+
+std::wstring _buildArgString(const std::vector<std::wstring>& args)
+{
+    return std::accumulate(
+        std::begin(args),
+        std::end(args),
+        std::wstring {},
+        [](std::wstring& total, const std::wstring& next) {
+            return total.empty() ? next : total + L" " + next;
+        });
+}
+
+bool OpenInUsdView(const std::wstring& usdFilePath)
+{
+    std::wstring directory;
+    if (!GetPluginDirectory(directory) || !PathFileExistsW(usdFilePath.c_str())) {
+        return false;
+    }
+
+    std::wstring runUsdviewBatPath { directory };
+    runUsdviewBatPath.append(L"RunUsdView.bat");
+    const std::wstring quotedBatPath
+        = std::wstring(L"\"") + runUsdviewBatPath + std::wstring(L"\"");
+    const std::wstring quotedFilePath = std::wstring(L"\"") + usdFilePath + std::wstring(L"\"");
+    const auto args = _buildArgString({ pythonExeFlag, _getQuotedPythonPath(), quotedFilePath });
+
+    return CreateProcessAndWait(false, quotedBatPath, args);
+}
+
+bool RunUsdZip(const std::wstring& usdzFilePath, const std::wstring& usdInputFile)
+{
+    std::wstring directory;
+    if (!GetPluginDirectory(directory) || !IsValidWindowsPath(usdzFilePath)
+        || !PathFileExistsW(usdInputFile.c_str())) {
+        return false;
+    }
+
+    std::wstring runUsdZipBatPath { directory };
+    runUsdZipBatPath.append(L"RunUsdZip.bat");
+    const std::wstring quotedBatPath = std::wstring(L"\"") + runUsdZipBatPath + std::wstring(L"\"");
+
+    const std::wstring quotedFilePaths = std::wstring(L"\"") + usdInputFile + std::wstring(L"\" \"")
+        + usdzFilePath + std::wstring(L"\"");
+    const auto args
+        = _buildArgString({ pythonExeFlag, _getQuotedPythonPath(), L"-a", quotedFilePaths });
+
+    return CreateProcessAndWait(true, quotedBatPath, args);
+}
+
+bool RunUsdChecker(const std::wstring& usdInputFile, const std::wstring& outputFile)
+{
+    std::wstring directory;
+    if (!GetPluginDirectory(directory) || !IsValidWindowsPath(outputFile)
+        || !PathFileExistsW(usdInputFile.c_str())) {
+        return false;
+    }
+
+    std::wstring runUsdCheckerBatPath { directory };
+    runUsdCheckerBatPath.append(L"RunUsdChecker.bat");
+    const std::wstring quotedBatPath
+        = std::wstring(L"\"") + runUsdCheckerBatPath + std::wstring(L"\"");
+    const std::wstring quotedFilePaths = std::wstring(L"\"") + usdInputFile
+        + std::wstring(L"\" > \"") + outputFile + std::wstring(L"\"");
+    const auto args = _buildArgString({ pythonExeFlag, _getQuotedPythonPath(), quotedFilePaths });
+
+    return CreateProcessAndWait(true, quotedBatPath, args);
+}
+
+bool IsValidWindowsPath(const std::wstring& path)
+{
+    // Check for illegal characters in path
+    std::wregex illegalCharsRegex(L"[<>\"/|?*]");
+    if (std::regex_search(path, illegalCharsRegex)) {
+        return false;
+    }
+
+    // Check if the path is too long
+    if (path.length() > MAX_PATH) {
+        return false;
+    }
+
+    // File/Path is valid
+    return true;
+}
+
+bool GetPluginDirectory(std::wstring& outDir)
+{
+    HMODULE moduleHandle = nullptr;
+
+    if (GetModuleHandleEx(
+            GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+            (LPCWSTR)&GetPluginDirectory,
+            &moduleHandle)
+        == 0) {
+        return false;
+    }
+    wchar_t modulePath[MAX_PATH];
+    // Extract the directory...
+    if (GetModuleFileName(moduleHandle, modulePath, sizeof(modulePath)) == 0) {
+        return false;
+    }
+
+    outDir = modulePath;
+    const size_t last_slash_idx = outDir.find_last_of(L"\\/");
+    if (std::string::npos != last_slash_idx) {
+        outDir.erase(last_slash_idx + 1, outDir.size() - 1);
+    }
+
+    return true;
+}
+
+bool CreateProcessAndWait(
+    const bool          waitForProcess,
+    const std::wstring& command,
+    const std::wstring& arguments)
+{
+    // in ordert to call CreateProcess on a bat file, one must call cmd.exe with /c (this flag
+    // hides the cmd.exe window) and then pass the path to the .bat file withing quotations to
+    // prevent tampering. for more information, see:
+    // https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-createprocessa#parameters
+    const std::wstring cmdcommand = std::wstring(L"\"cmd.exe\" /c ") + std::wstring(L"\"") + command
+        + std::wstring(L" ") + arguments + std::wstring(L"\"");
+
+    // startup info structure
+    STARTUPINFO si;
+    ZeroMemory(&si, sizeof(si));
+
+    si.cb = sizeof(si);
+    si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
+    si.wShowWindow = SW_HIDE;
+    si.hStdError = NULL;
+
+    // process info structure
+    PROCESS_INFORMATION pi;
+    ZeroMemory(&pi, sizeof(pi));
+
+    const bool bResult = CreateProcess(
+        NULL,                        // name
+        (LPWSTR)cmdcommand.data(),   // cmdline
+        NULL,                        // process attrib.
+        NULL,                        // thread attrib.
+        FALSE,                       // inherit handles
+        CREATE_NEW_PROCESS_GROUP,    // flags
+        NULL,                        // env. variables
+        NULL,                        // directory
+        (LPSTARTUPINFO)&si,          // startup info
+        (LPPROCESS_INFORMATION)&pi); // potent potables
+
+    // in the event that we are creating a process we want to wait for it to finish, we want
+    // to block the process that is creating another process until it returns.
+    if (waitForProcess) {
+        // the function does not enter a wait state if the object is not signaled;
+        // it always returns immediately. If dwMilliseconds is INFINITE,
+        // the function will return only when the object is signaled.
+        WaitForSingleObject(pi.hProcess, INFINITE);
+    }
+    CloseHandle(pi.hProcess);
+    CloseHandle(pi.hThread);
+
+    return bResult;
+}
+
+} // namespace UsdToolsUtils
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/UsdToolsUtils.h b/src/MaxUsd/Utilities/UsdToolsUtils.h
new file mode 100644
index 0000000..2a78662
--- /dev/null
+++ b/src/MaxUsd/Utilities/UsdToolsUtils.h
@@ -0,0 +1,76 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <xstring>
+
+namespace MAXUSD_NS_DEF {
+namespace UsdToolsUtils {
+
+/**
+ * \brief Open a given usd file in usdview.
+ * \param filePath The path to the usd file to open.
+ * \return true if opening Usdview was successful, false otherwise.
+ */
+MaxUSDAPI bool OpenInUsdView(const std::wstring& filePath);
+
+/**
+ * \brief Run UsdZip on a give input file to generate a zipped copy of it.
+ * \param usdzFilePath Name for the USDZ file to be created.
+ * \param usdInputFile Input USD file that will be zipped.
+ * \return true if running UsdZip was successful, false otherwise.
+ */
+MaxUSDAPI bool RunUsdZip(const std::wstring& usdzFilePath, const std::wstring& usdInputFile);
+
+/**
+ * \brief Run usdchecker and output the result to the specified file
+ * \param usdInputFile The path to the usd file to check.
+ * \param outputFile The output file, where the usdchecker output will be written.
+ * \return true if running usdchecker was successful, false otherwise.
+ */
+MaxUSDAPI bool RunUsdChecker(const std::wstring& usdInputFile, const std::wstring& outputFile);
+
+/**
+ * \brief Check if the given string is a valid windows path.
+ * \param path wide string containing the path to be checked.
+ * \return true if string is a valid path, false otherwise.
+ */
+bool IsValidWindowsPath(const std::wstring& path);
+
+/**
+ * \brief Get the plugin directory of the current running instance
+ * \param outDir wide string containing the directory path.
+ * \return true if successfully got the path, false otherwise.
+ */
+bool GetPluginDirectory(std::wstring& outDir);
+
+/**
+ * \brief Run the given command as a new process.
+ * \param waitForProcess bool flag to determine to wait for process to close.
+ * \param command string command to be executed.
+ * \param arguments string arguments to be passed to the command.
+ * \return true if able to run the process successfully, false otherwise.
+ */
+bool CreateProcessAndWait(
+    const bool          waitForProcess,
+    const std::wstring& command,
+    const std::wstring& arguments);
+
+} // namespace UsdToolsUtils
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Utilities/VtDictionaryUtils.cpp b/src/MaxUsd/Utilities/VtDictionaryUtils.cpp
new file mode 100644
index 0000000..a630505
--- /dev/null
+++ b/src/MaxUsd/Utilities/VtDictionaryUtils.cpp
@@ -0,0 +1,578 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "VtDictionaryUtils.h"
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/acolor.h>
+#else
+#include <acolor.h>
+#endif
+
+#if _MSVC_LANG > 201402L
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#endif
+
+#include <pxr/base/js/converter.h>
+#include <pxr/base/js/json.h>
+
+#include <QJsonArray>
+#include <QJsonObject>
+
+namespace MAXUSD_NS_DEF {
+
+namespace DictUtils {
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+/// Extracts a bool at \p key from \p userArgs, or false if it can't extract.
+bool ExtractBoolean(const VtDictionary& userArgs, const TfToken& key)
+{
+    if (!VtDictionaryIsHolding<bool>(userArgs, key)) {
+        TF_CODING_ERROR(
+            "Dictionary is missing required key '%s' or key is "
+            "not bool type",
+            key.GetText());
+        return false;
+    }
+    return VtDictionaryGet<bool>(userArgs, key);
+}
+
+/// Extracts a pointer at \p key from \p userArgs, or nullptr if it can't extract.
+UsdStageRefPtr ExtractUsdStageRefPtr(const VtDictionary& userArgs, const TfToken& key)
+{
+    if (!VtDictionaryIsHolding<UsdStageRefPtr>(userArgs, key)) {
+        TF_CODING_ERROR(
+            "Dictionary is missing required key '%s' or key is "
+            "not pointer type",
+            key.GetText());
+        return nullptr;
+    }
+    return VtDictionaryGet<UsdStageRefPtr>(userArgs, key);
+}
+
+/// Extracts a double at \p key from \p userArgs, or defaultValue if it can't extract.
+double ExtractDouble(const VtDictionary& userArgs, const TfToken& key, double defaultValue)
+{
+    if (VtDictionaryIsHolding<double>(userArgs, key))
+        return VtDictionaryGet<double>(userArgs, key);
+
+    // Since user dictionary can be provided from Python and in Python it is easy to
+    // mix int and double, especially since value literal will take the simplest value
+    // they can, for example 0 will be an int, support receiving the value as an integer.
+    if (VtDictionaryIsHolding<int>(userArgs, key))
+        return VtDictionaryGet<int>(userArgs, key);
+
+    TF_CODING_ERROR(
+        "Dictionary is missing required key '%s' or key is "
+        "not double type",
+        key.GetText());
+    return defaultValue;
+}
+
+/// Extracts a string at \p key from \p userArgs, or "" if it can't extract.
+std::string ExtractString(const VtDictionary& userArgs, const TfToken& key)
+{
+    if (!VtDictionaryIsHolding<std::string>(userArgs, key)) {
+        TF_CODING_ERROR(
+            "Dictionary is missing required key '%s' or key is "
+            "not string type",
+            key.GetText());
+        return std::string();
+    }
+    return VtDictionaryGet<std::string>(userArgs, key);
+}
+
+/// Extracts a token at \p key from \p userArgs.
+/// If the token value is not either \p defaultToken or one of the
+/// \p otherTokens, then returns \p defaultToken instead.
+TfToken ExtractToken(
+    const VtDictionary&         userArgs,
+    const TfToken&              key,
+    const TfToken&              defaultToken,
+    const std::vector<TfToken>& otherTokens)
+{
+    const TfToken tok(ExtractString(userArgs, key));
+    for (const TfToken& allowedTok : otherTokens) {
+        if (tok == allowedTok) {
+            return tok;
+        }
+    }
+
+    // Empty token will silently be promoted to default value.
+    // Warning for non-empty tokens that don't match.
+    if (tok != defaultToken && !tok.IsEmpty()) {
+        TF_WARN(
+            "Value '%s' is not allowed for flag '%s'; using fallback '%s' "
+            "instead",
+            tok.GetText(),
+            key.GetText(),
+            defaultToken.GetText());
+    }
+    return defaultToken;
+}
+
+/// Extracts an absolute path at \p key from \p userArgs, or the empty path if
+/// it can't extract.
+SdfPath ExtractAbsolutePath(const VtDictionary& userArgs, const TfToken& key)
+{
+    const std::string s = ExtractString(userArgs, key);
+    // Assume that empty strings are empty paths. (This might be an error case.)
+    if (s.empty()) {
+        return SdfPath();
+    }
+    // Make all relative paths into absolute paths.
+    SdfPath path(s);
+    if (path.IsAbsolutePath()) {
+        return path;
+    } else {
+        return SdfPath::AbsoluteRootPath().AppendPath(path);
+    }
+}
+
+/// Convenience function that takes the result of ExtractVector and converts it to a
+/// TfToken::Set.
+TfToken::Set ExtractTokenSet(const VtDictionary& userArgs, const TfToken& key)
+{
+    const std::vector<std::string> vec = ExtractVector<std::string>(userArgs, key);
+    TfToken::Set                   result;
+    for (const std::string& s : vec) {
+        result.insert(TfToken(s));
+    }
+    return result;
+}
+
+// Convert a dictionary entry from std::vector<VtValue> (holding std::string) or
+// std::vector<std::string> to ContainerType<ValueType>. ValueType must be instantiable from
+// std::string. ContainerType must define insert() method.
+template <template <typename...> class ContainerType, typename ValueType>
+void StringArrayEntryToStdContainerType(
+    VtDictionary&       dict,
+    const VtDictionary& guide,
+    const std::string&  key)
+{
+    if (VtDictionaryIsHolding<std::vector<VtValue>>(dict, key)) {
+        const auto& vec = dict[key].UncheckedGet<std::vector<pxr::VtValue>>();
+
+        if (std::all_of(vec.begin(), vec.end(), [](const pxr::VtValue& v) {
+                return v.IsHolding<std::string>();
+            })) {
+            ContainerType<ValueType> container;
+            for (const auto& val : vec) {
+                container.insert(container.end(), ValueType(val.UncheckedGet<std::string>()));
+            }
+            dict[key] = container;
+        }
+    } else if (VtDictionaryIsHolding<std::vector<std::string>>(dict, key)) {
+        ContainerType<ValueType> container;
+        for (const auto& val : VtDictionaryGet<std::vector<std::string>>(dict, key)) {
+            container.insert(container.end(), ValueType(val));
+        }
+        dict[key] = container;
+    } else {
+        dict[key] = VtDictionaryGet<ContainerType<ValueType>>(guide, key);
+        TF_WARN(
+            "Expected the value of the key : %s to be a %s",
+            key.c_str(),
+            typeid(ContainerType<ValueType>).name());
+    }
+}
+
+// ---------------------------------------------------------------------
+// Example of usage:
+// guide = {
+//      "double": 1.0
+//      "TfToken": aTfToken
+//      "SdfPath": aSdfPath
+//      "boolean": true
+//      "failedCoercion": true (bool)
+//      "extraKeyNotInDict": "extraValue"
+//  }
+// dictToCoerce = {
+//      "double": 2 (int)
+//      "TfToken": "anotherTfToken" (as std::string)
+//      "SdfPath": "/anotherSdfPath" (as std::string)
+//      "boolean": true (bool)
+//      "failedCoercion" : "RandomString" (as std::string)
+//  }
+//
+// After the call to CoerceDictToGuideType(dictToCoerce, guide) the dictToCoerce will be:
+// dictToCoerce = {
+//      "double": 2.0 (double)
+//      "TfToken": anotherTfToken (TfToken)
+//      "SdfPath": /anotherSdfPath (SdfPath)
+//      "boolean": true (bool)
+//      "failedCoercion" : true (bool)
+//  }
+//
+// Iterations over the guide dictionary:
+// For the "double" entry, we know how to convert an int to a double, so the value is cast and kept.
+// For the "TFToken" entry, we know how to convert a std::string to a TfToken, so the value is cast
+// and kept. For the "SdfPath" entry, we know how to convert a std::string to a SdfPath, so the
+// value is cast and kept. For the "boolean" entry, the value is already of the correct type, so it
+// is kept as is. For the "failedCoercion" entry, the value is not of the correct type, and we don't
+// know how to convert it to the correct type, so the value from the guide is put in dictToCoerce
+// for this entry. For the "extraKeyNotInDict" entry, it is not in the dictToCoerce, so it is
+// skipped.
+// ---------------------------------------------------------------------
+void CoerceDictToGuideType(VtDictionary& dict, const VtDictionary& guide)
+{
+    for (const auto& entry : guide) {
+        // If the dictionary doesn't have the key, nothing to be done.
+        // The goal is not to add new keys to the dictionary, just validate that they are the
+        // expected type.
+        if (dict.find(entry.first) == dict.end()) {
+            continue;
+        }
+        // Holding the same type, good to go.
+        if (dict[entry.first].GetTypeid() == entry.second.GetTypeid()) {
+            continue;
+        } else if (VtDictionaryIsHolding<std::set<TfToken>>(guide, entry.first)) {
+            StringArrayEntryToStdContainerType<std::set, TfToken>(dict, guide, entry.first);
+        } else if (VtDictionaryIsHolding<std::set<std::string>>(guide, entry.first)) {
+            StringArrayEntryToStdContainerType<std::set, std::string>(dict, guide, entry.first);
+        } else if (VtDictionaryIsHolding<std::vector<SdfPath>>(guide, entry.first)) {
+            StringArrayEntryToStdContainerType<std::vector, SdfPath>(dict, guide, entry.first);
+        } else if (VtDictionaryIsHolding<std::vector<std::string>>(guide, entry.first)) {
+            StringArrayEntryToStdContainerType<std::vector, std::string>(dict, guide, entry.first);
+        } else if (VtDictionaryIsHolding<std::set<int>>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::vector<VtValue>>(dict, entry.first)) {
+                const auto& vec = dict[entry.first].UncheckedGet<std::vector<pxr::VtValue>>();
+
+                if (std::all_of(vec.begin(), vec.end(), [](const pxr::VtValue& v) {
+                        return v.IsHolding<int>();
+                    })) {
+                    std::set<int> container;
+                    for (const auto& val : vec) {
+                        container.insert(container.end(), val.UncheckedGet<int>());
+                    }
+                    dict[entry.first] = container;
+                }
+            } else {
+                dict[entry.first] = VtDictionaryGet<std::set<int>>(guide, entry.first);
+                TF_WARN("Expected the value of the key : %s to be a std::set<int>", entry.first);
+            }
+        } else if (VtDictionaryIsHolding<std::vector<VtDictionary>>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::vector<VtValue>>(dict, entry.first)) {
+                const auto& vec = dict[entry.first].UncheckedGet<std::vector<pxr::VtValue>>();
+
+                if (std::all_of(vec.begin(), vec.end(), [](const pxr::VtValue& v) {
+                        return v.IsHolding<VtDictionary>();
+                    })) {
+                    std::vector<VtDictionary> container;
+                    for (const auto& val : vec) {
+                        container.insert(container.end(), val.UncheckedGet<VtDictionary>());
+                    }
+                    dict[entry.first] = container;
+                }
+            } else {
+                dict[entry.first] = VtDictionaryGet<std::vector<VtDictionary>>(guide, entry.first);
+                TF_WARN(
+                    "Expected the value of the key : %s to be a std::vector<VtDictionary>",
+                    entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<TfToken>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::string>(dict, entry.first)) {
+                dict[entry.first] = TfToken(VtDictionaryGet<std::string>(dict, entry.first));
+            } else {
+                dict[entry.first] = VtDictionaryGet<TfToken>(guide, entry.first);
+                TF_WARN("Expected the value of the key : %s to be a TfToken", entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<SdfPath>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::string>(dict, entry.first)) {
+                dict[entry.first] = SdfPath(VtDictionaryGet<std::string>(dict, entry.first));
+            } else {
+                dict[entry.first] = VtDictionaryGet<SdfPath>(guide, entry.first);
+                TF_WARN("Expected the value of the key : %s to be a SdfPath", entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<double>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<int>(dict, entry.first)) {
+                dict[entry.first] = static_cast<double>(VtDictionaryGet<int>(dict, entry.first));
+            } else {
+                dict[entry.first] = VtDictionaryGet<double>(guide, entry.first);
+                TF_WARN("Expected the value of the key : %s to be a double", entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<fs::path>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::string>(dict, entry.first)) {
+                dict[entry.first] = fs::path(VtDictionaryGet<std::string>(dict, entry.first));
+            } else {
+                dict[entry.first] = VtDictionaryGet<std::set<fs::path>>(guide, entry.first);
+                TF_WARN(
+                    "Expected the value of the key : %s to be a filesystem:path",
+                    entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<AColor>(guide, entry.first)) {
+            if (VtDictionaryIsHolding<std::vector<VtValue>>(dict, entry.first)) {
+                auto vec = dict[entry.first].UncheckedGet<std::vector<pxr::VtValue>>();
+                if (vec.size() == 4
+                    && std::all_of(vec.begin(), vec.end(), [](const pxr::VtValue& v) {
+                           return v.CanCast<float>();
+                       })) {
+                    AColor col = AColor(
+                        vec[0].Cast<float>().UncheckedGet<float>(),
+                        vec[1].Cast<float>().UncheckedGet<float>(),
+                        vec[2].Cast<float>().UncheckedGet<float>(),
+                        vec[3].Cast<float>().UncheckedGet<float>());
+                    dict[entry.first] = col;
+                }
+            } else {
+                dict[entry.first] = VtDictionaryGet<AColor>(guide, entry.first);
+                TF_WARN("Expected the value of the key : %s to be a AColor", entry.first.c_str());
+            }
+        } else if (VtDictionaryIsHolding<std::map<std::string, std::map<std::string, std::string>>>(
+                       guide, entry.first)) {
+            if (auto holding = VtDictionaryIsHolding<VtDictionary>(dict, entry.first)) {
+                VtDictionary d = VtDictionaryGet<VtDictionary>(dict, entry.first);
+                std::map<std::string, std::map<std::string, std::string>> result;
+
+                for (const auto& outerPair : d) {
+                    if (outerPair.second.IsHolding<VtDictionary>()) {
+                        const VtDictionary& innerDict
+                            = outerPair.second.UncheckedGet<VtDictionary>();
+                        std::map<std::string, std::string> innerMap;
+
+                        for (const auto& innerPair : innerDict) {
+                            if (innerPair.second.IsHolding<std::string>()) {
+                                innerMap[innerPair.first]
+                                    = innerPair.second.UncheckedGet<std::string>();
+                            } else {
+                                TF_WARN(
+                                    "Expected inner dictionary value to be a string for key '%s'",
+                                    innerPair.first.c_str());
+                            }
+                        }
+                        result[outerPair.first] = innerMap;
+                    } else {
+                        TF_WARN(
+                            "Expected outer dictionary value to be a dictionary for key '%s'",
+                            outerPair.first.c_str());
+                    }
+                }
+                dict[entry.first] = result;
+            } else {
+                dict[entry.first]
+                    = VtDictionaryGet<std::map<std::string, std::map<std::string, std::string>>>(
+                        guide, entry.first);
+                TF_WARN(
+                    "Expected the value of the key : %s to be a std::map<std::string, "
+                    "std::map<std::string, std::string>>",
+                    entry.first.c_str());
+            }
+        }
+
+        // Not the same type set the Value from the Guide
+        else {
+            dict[entry.first] = entry.second;
+            TF_WARN("Unsupported type for the value of key : '%s'", entry.first.c_str());
+        }
+    }
+}
+
+void VtDictToJson(const pxr::VtDictionary& dic, QJsonObject& jsonObj)
+{
+    pxr::VtDictionary validDic(dic);
+    std::string       errMsg;
+
+    for (const auto& dicEntry : validDic) {
+        auto typeValue = pxr::SdfGetValueTypeNameForValue(dicEntry.second);
+        auto type = dicEntry.second.GetTypeName();
+        if (dicEntry.second.IsHolding<std::vector<pxr::VtValue>>()) {
+            // This convert std::vector<VtValue> and python arrays to VtArray<T>
+            // But this also removes some data, like std::vector<T>...
+            // The import/export options classes don't use this type, so it's not a problem.
+            // But this is very convenient to save the data coming from python context options.
+            pxr::SdfConvertToValidMetadataDictionary(&validDic, &errMsg);
+
+            if (!errMsg.empty()) {
+                TF_WARN(errMsg);
+            }
+            break;
+        }
+    }
+
+    for (const auto& dicEntry : validDic) {
+        if (dicEntry.second.IsHolding<bool>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<bool>();
+        } else if (dicEntry.second.IsHolding<int>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<int>();
+        } else if (dicEntry.second.IsHolding<double>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<double>();
+        } else if (dicEntry.second.IsHolding<float>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<float>();
+        } else if (dicEntry.second.IsHolding<std::string>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<std::string>().c_str();
+        } else if (dicEntry.second.IsHolding<pxr::TfToken>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<pxr::TfToken>().GetText();
+        } else if (dicEntry.second.IsHolding<pxr::SdfPath>()) {
+            jsonObj[dicEntry.first.c_str()]
+                = dicEntry.second.Get<pxr::SdfPath>().GetString().c_str();
+        } else if (dicEntry.second.IsHolding<fs::path>()) {
+            jsonObj[dicEntry.first.c_str()] = dicEntry.second.Get<fs::path>().string().c_str();
+        } else if (dicEntry.second.IsHolding<AColor>()) {
+            auto       color = dicEntry.second.Get<AColor>();
+            QJsonArray colorArray;
+            colorArray << color.r << color.g << color.b << color.a;
+            jsonObj[dicEntry.first.c_str()] = colorArray;
+        } else if (dicEntry.second.IsArrayValued()) {
+            QJsonArray array;
+            auto       typeValue = pxr::SdfGetValueTypeNameForValue(dicEntry.second);
+
+            if (typeValue == "string[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<std::string>>()) {
+                    array << item.c_str();
+                }
+            } else if (typeValue == "int[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<int>>()) {
+                    array << item;
+                }
+            } else if (typeValue == "float[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<float>>()) {
+                    array << item;
+                }
+            } else if (typeValue == "double[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<double>>()) {
+                    array << item;
+                }
+            } else if (typeValue == "bool[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<bool>>()) {
+                    array << item;
+                }
+            } else if (typeValue == "TfToken[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<pxr::TfToken>>()) {
+                    array << item.GetText();
+                }
+            } else if (typeValue == "SdfPath[]") {
+                for (const auto& item : dicEntry.second.Get<pxr::VtArray<pxr::SdfPath>>()) {
+                    array << item.GetString().c_str();
+                }
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<int>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<int>>()) {
+                array << item;
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<float>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<float>>()) {
+                array << item;
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<double>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<double>>()) {
+                array << item;
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<std::string>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<std::string>>()) {
+                array << item.c_str();
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<pxr::TfToken>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<pxr::TfToken>>()) {
+                array << item.GetText();
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::vector<pxr::SdfPath>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::vector<pxr::SdfPath>>()) {
+                array << item.GetString().c_str();
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::set<std::string>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::set<std::string>>()) {
+                array << item.c_str();
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::set<pxr::TfToken>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::set<pxr::TfToken>>()) {
+                array << item.GetString().c_str();
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<std::set<int>>()) {
+            QJsonArray array;
+            for (const auto& item : dicEntry.second.UncheckedGet<std::set<int>>()) {
+                array << item;
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second
+                       .IsHolding<std::map<std::string, std::map<std::string, std::string>>>()) {
+            QJsonObject map;
+            const auto& mapValue
+                = dicEntry.second.Get<std::map<std::string, std::map<std::string, std::string>>>();
+            for (const auto& outerKey : mapValue) {
+                QJsonObject innerMap;
+                for (const auto& innerKey : outerKey.second) {
+                    innerMap[innerKey.first.c_str()] = innerKey.second.c_str();
+                }
+                map[outerKey.first.c_str()] = innerMap;
+            }
+            jsonObj[dicEntry.first.c_str()] = map;
+        } else if (dicEntry.second.IsHolding<std::vector<pxr::VtDictionary>>()) {
+            QJsonArray array;
+            for (const auto& innerDict :
+                 dicEntry.second.UncheckedGet<std::vector<pxr::VtDictionary>>()) {
+                QJsonObject subDictJson;
+                VtDictToJson(innerDict, subDictJson);
+                array.push_back(subDictJson);
+            }
+            jsonObj[dicEntry.first.c_str()] = array;
+        } else if (dicEntry.second.IsHolding<pxr::VtDictionary>()) {
+            QJsonObject subDict;
+            VtDictToJson(dicEntry.second.Get<pxr::VtDictionary>(), subDict);
+            jsonObj[dicEntry.first.c_str()] = subDict;
+        }
+
+        else {
+            TF_WARN("Failed to serialize key : %s", dicEntry.first);
+        }
+    }
+}
+
+void VtDictFromString(const std::string& stdStr, pxr::VtDictionary& dict)
+{
+    pxr::JsParseError error;
+    pxr::JsValue      jsDict = pxr::JsParseString(stdStr, &error);
+
+    if (jsDict.IsNull()) {
+        if (!error.reason.empty()) {
+            TF_WARN(
+                "Failed to extract dictionary from input (line %d, col %d): %s",
+                error.line,
+                error.column,
+                error.reason.c_str());
+        }
+    }
+
+    const VtValue vtdict
+        = JsValueTypeConverter<VtValue, VtDictionary, /*UseInt64*/ false>::Convert(jsDict);
+
+    dict = vtdict.IsHolding<VtDictionary>() ? vtdict.UncheckedGet<VtDictionary>() : VtDictionary();
+}
+
+} // namespace DictUtils
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/VtDictionaryUtils.h b/src/MaxUsd/Utilities/VtDictionaryUtils.h
new file mode 100644
index 0000000..afa89f1
--- /dev/null
+++ b/src/MaxUsd/Utilities/VtDictionaryUtils.h
@@ -0,0 +1,152 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/base/vt/dictionary.h>
+#include <pxr/base/vt/value.h>
+#include <pxr/usd/sdf/path.h>
+
+#include <MaxUsd.h>
+#include <vector>
+
+class QJsonObject;
+
+namespace MAXUSD_NS_DEF {
+
+namespace DictUtils {
+
+/// \brief Extracts a bool at \p key from \p userArgs, or false if it can't extract.
+MaxUSDAPI bool ExtractBoolean(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+/// \brief Extracts a pointer at \p key from \p userArgs, or nullptr if it can't extract.
+MaxUSDAPI PXR_NS::UsdStageRefPtr
+          ExtractUsdStageRefPtr(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+/// \brief Extracts a double at \p key from \p userArgs, or defaultValue if it can't extract.
+MaxUSDAPI double ExtractDouble(
+    const PXR_NS::VtDictionary& userArgs,
+    const PXR_NS::TfToken&      key,
+    double                      defaultValue);
+
+/// \brief Extracts a string at \p key from \p userArgs, or "" if it can't extract.
+MaxUSDAPI std::string
+          ExtractString(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+/// \brief Extracts a token at \p key from \p userArgs.
+/// If the token value is not either \p defaultToken or one of the
+/// \p otherTokens, then returns \p defaultToken instead.
+MaxUSDAPI PXR_NS::TfToken ExtractToken(
+    const PXR_NS::VtDictionary&         userArgs,
+    const PXR_NS::TfToken&              key,
+    const PXR_NS::TfToken&              defaultToken,
+    const std::vector<PXR_NS::TfToken>& otherTokens);
+
+/// \brief Extracts an absolute path at \p key from \p userArgs, or the empty path if
+/// it can't extract.
+MaxUSDAPI PXR_NS::SdfPath
+          ExtractAbsolutePath(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+/// \brief Extracts an vector<T> from the vector<VtValue> at \p key in \p userArgs.
+/// Returns an empty vector if it can't convert the entire value at \p key into
+/// a vector<T>.
+template <typename T>
+std::vector<T> ExtractVector(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+/// \brief Convenience function that takes the result of ExtractVector and converts it to a
+/// TfToken::Set.
+MaxUSDAPI PXR_NS::TfToken::Set
+          ExtractTokenSet(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key);
+
+// Implementation of the templated function declared above.
+template <typename T>
+std::vector<T> ExtractVector(const PXR_NS::VtDictionary& userArgs, const PXR_NS::TfToken& key)
+{
+    // Using declaration is necessary for the TF_ macros to compile as they assume
+    // to be in that namespace.
+    PXR_NAMESPACE_USING_DIRECTIVE
+
+    // Check that vector exists.
+    if (VtDictionaryIsHolding<std::vector<T>>(userArgs, key)) {
+        std::vector<T> vals = VtDictionaryGet<std::vector<T>>(userArgs, key);
+        return vals;
+    }
+
+    if (!VtDictionaryIsHolding<std::vector<VtValue>>(userArgs, key)) {
+        TF_CODING_ERROR(
+            "Dictionary is missing required key '%s' or key is "
+            "not vector type",
+            key.GetText());
+        return std::vector<T>();
+    }
+
+    // Check that vector is correctly-typed.
+    std::vector<VtValue> vals = VtDictionaryGet<std::vector<VtValue>>(userArgs, key);
+    if (!std::all_of(vals.begin(), vals.end(), [](const VtValue& v) { return v.IsHolding<T>(); })) {
+        TF_CODING_ERROR(
+            "Vector at dictionary key '%s' contains elements of "
+            "the wrong type",
+            key.GetText());
+        return std::vector<T>();
+    }
+
+    // Extract values.
+    std::vector<T> result;
+    for (const VtValue& v : vals) {
+        result.push_back(v.UncheckedGet<T>());
+    }
+    return result;
+}
+
+/// \brief Attempts to get the value of the given key from the dictionary.
+/// If the key is not found or if the type is not matching the value will be retrieved from the
+/// guide. The Key must be present in the guide.
+template <typename T>
+const T& VtDictionaryGetWithDefault(
+    const PXR_NS::VtDictionary& dict,
+    const PXR_NS::VtDictionary& defaultDict,
+    const std::string&          key)
+{
+    if (PXR_NS::VtDictionaryIsHolding<T>(dict, key)) {
+        return PXR_NS::VtDictionaryGet<T>(dict, key);
+    }
+    return PXR_NS::VtDictionaryGet<T>(defaultDict, key);
+}
+
+/// \brief Coerces the dictionary entries to the type of the matching entries in the guide.
+/// The goal is to ensure that the dictionary's entries have the same type as the guide.
+/// If the type is incorrect, and if the method doesn't know how to convert it to the guide type,
+/// the value from the guide will be assigned.
+/// \param dict The dictionary to validate/coerce.
+/// \param guide The guide dictionary to use for type enforcement.
+MaxUSDAPI void CoerceDictToGuideType(pxr::VtDictionary& dict, const pxr::VtDictionary& guide);
+
+/// \brief Converts a VtDictionary to a QJsonObject.
+/// \param dic The dictionary to convert.
+/// \param jsonObj The json object to populate.
+MaxUSDAPI void VtDictToJson(const pxr::VtDictionary& dic, QJsonObject& jsonObj);
+
+/// \brief Converts a json formatted string to a VtDictionary.
+/// If the conversion fail an empty dictionary will be set.
+/// \param stdStr The json formatted string to convert.
+/// \param dict The VtDictionary to populate.
+MaxUSDAPI void VtDictFromString(const std::string& stdStr, pxr::VtDictionary& dict);
+
+} // namespace DictUtils
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Utilities/VtUtils.h b/src/MaxUsd/Utilities/VtUtils.h
new file mode 100644
index 0000000..11b5c18
--- /dev/null
+++ b/src/MaxUsd/Utilities/VtUtils.h
@@ -0,0 +1,31 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+namespace MAXUSD_NS_DEF {
+namespace Vt {
+
+// VtArrays have copy-on-write semantics. Because of this, non-const access to the raw data
+// forces a copy. Unfortunately many function signatures on the 3dsmax side are not const-correct,
+// and we must supply non-const pointers. This helper bypasses the copy via a const-cast.
+template <class T, class U> T* GetNoCopy(const pxr::VtArray<U>& array)
+{
+    auto data = const_cast<U*>(array.cdata());
+    return reinterpret_cast<T*>(data);
+}
+
+} // namespace Vt
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/VersionOverrides.h b/src/MaxUsd/VersionOverrides.h
new file mode 100644
index 0000000..80718c5
--- /dev/null
+++ b/src/MaxUsd/VersionOverrides.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Definitions specific to the present .dll
+#define USD_COMPONENT_BINARY_INTERNAL_NAME      "maxUsdComponent\0"
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "maxUsd.dll\0"
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION   "3ds Max USD plugin\0"
diff --git a/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.cpp b/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.cpp
new file mode 100644
index 0000000..ad36dce
--- /dev/null
+++ b/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.cpp
@@ -0,0 +1,99 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DiagnosticMessagesModelFactory.h"
+
+#include "QDiagnosticMessagesModel.h"
+
+namespace MAXUSD_NS_DEF {
+
+// Ensure the DiagnosticMessagesModelFactory is not constructible, as it is intended to be used only
+// through static factory methods.
+//
+// While additional traits like std::is_copy_constructible or std::is_move_constructible could also
+// be used, the fact that the Factory cannot be (traditionally) instantiated prevents other
+// constructors and assignments operators from being useful.
+static_assert(
+    !std::is_constructible<DiagnosticMessagesModelFactory>::value,
+    "DiagnosticMessagesModelFactory should not be constructible.");
+
+std::unique_ptr<QDiagnosticMessagesModel>
+DiagnosticMessagesModelFactory::CreateEmptyTableModel(QObject* parent)
+{
+    std::unique_ptr<QDiagnosticMessagesModel> tableModel
+        = std::make_unique<QDiagnosticMessagesModel>(parent);
+    tableModel->setHorizontalHeaderLabels(
+        { QObject::tr(""),
+          QObject::tr("USD raised the following diagnostic information about the scene. You may "
+                      "want to review it:") });
+    return tableModel;
+}
+
+std::unique_ptr<QDiagnosticMessagesModel> DiagnosticMessagesModelFactory::CreateFromMessageList(
+    const std::vector<MaxUsd::Diagnostics::Message>& messages,
+    QObject*                                         parent)
+{
+    std::unique_ptr<QDiagnosticMessagesModel> tableModel = CreateEmptyTableModel(parent);
+    for (const auto& message : messages) {
+        tableModel->appendRow(CreateMessageRow(message));
+    }
+    return tableModel;
+}
+
+QList<QStandardItem*>
+DiagnosticMessagesModelFactory::CreateMessageRow(const MaxUsd::Diagnostics::Message& message)
+{
+    QStandardItem* typeColumn = new QStandardItem();
+
+    QString      typeText = QObject::tr("Other");
+    QBrush       brush = typeColumn->foreground();
+    const QColor errorColor(237, 28, 36);
+    const QColor statusColor(195, 195, 195);
+    const QColor warningColor(255, 201, 14);
+
+    switch (message.type) {
+    case MaxUsd::Diagnostics::Message::MessageType::Error:
+        typeText = QObject::tr("Error");
+        brush.setColor(errorColor);
+        break;
+    case MaxUsd::Diagnostics::Message::MessageType::Status:
+        typeText = QObject::tr("Info");
+        brush.setColor(statusColor);
+        break;
+    case MaxUsd::Diagnostics::Message::MessageType::Warning:
+        typeText = QObject::tr("Warning");
+        brush.setColor(warningColor);
+        break;
+    default:
+        // Nothing to do.
+        break;
+    }
+
+    // Format columns of the row:
+    QFont font = typeColumn->font();
+    font.setBold(true);
+    typeColumn->setFont(font);
+    typeColumn->setForeground(brush);
+    typeColumn->setText(typeText);
+    typeColumn->setTextAlignment(Qt::AlignmentFlag::AlignCenter);
+
+    QString formattedTextContent
+        = QString::fromStdString(message.message.GetCommentary().c_str()).trimmed();
+    QStandardItem* messageColumn = new QStandardItem(formattedTextContent);
+
+    return { typeColumn, messageColumn };
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.h b/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.h
new file mode 100644
index 0000000..ed87581
--- /dev/null
+++ b/src/MaxUsd/Widgets/DiagnosticMessagesModelFactory.h
@@ -0,0 +1,71 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+
+#include <MaxUsd.h>
+#include <QtCore/QList>
+#include <memory>
+#include <vector>
+
+class QObject;
+class QStandardItem;
+
+namespace MAXUSD_NS_DEF {
+
+class QDiagnosticMessagesModel;
+
+/**
+ * \brief Factory to create a list of USD Diagnostic Messages suitable to be displayed in a Qt Table.
+ */
+class MaxUSDAPI DiagnosticMessagesModelFactory
+{
+private:
+    /**
+     * \brief Default Constructor (deleted).
+     */
+    DiagnosticMessagesModelFactory() = delete;
+
+public:
+    /**
+     * \brief Create an empty QDiagnosticMessagesModel.
+     * \param parent A reference to the parent of the QDiagnosticMessagesModel.
+     * \return An empty QDiagnosticMessagesModel.
+     */
+    static std::unique_ptr<QDiagnosticMessagesModel>
+    CreateEmptyTableModel(QObject* parent = nullptr);
+
+    /**
+     * \brief Create a QDiagnosticMessagesModel from the given list of USD Diagnostic Messages.
+     * \param messages A reference to the list of USD Diagnostic Messages from which to create a QDiagnosticMessagesModel.
+     * \param parent A reference to the parent of the QDiagnosticMessagesModel.
+     * \return A QDiagnosticMessagesModel created from the given list of USD Diagnostic Messages.
+     */
+    static std::unique_ptr<QDiagnosticMessagesModel> CreateFromMessageList(
+        const std::vector<MaxUsd::Diagnostics::Message>& messages,
+        QObject*                                         parent = nullptr);
+
+protected:
+    /**
+     * \brief Create the list of data cells used to represent the given Diagnostic Message's data in the table.
+     * \param message The DiagnosticMessage for which to create the list of data cells.
+     * \return The list of data cells used to represent the given USD DiagnosticMessage's data in the table.
+     */
+    static QList<QStandardItem*> CreateMessageRow(const MaxUsd::Diagnostics::Message& message);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/ElidedLabel.cpp b/src/MaxUsd/Widgets/ElidedLabel.cpp
new file mode 100644
index 0000000..a4726f1
--- /dev/null
+++ b/src/MaxUsd/Widgets/ElidedLabel.cpp
@@ -0,0 +1,85 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "ElidedLabel.h"
+
+#include <QtGui/qpainter.h>
+#include <QtWidgets/qstyleoption.h>
+
+ElidedLabel::ElidedLabel(QWidget* parent)
+    : QFrame(parent)
+{
+}
+
+ElidedLabel::ElidedLabel(const QString& text, QWidget* parent)
+    : QFrame(parent)
+    , labelText(text)
+{
+}
+
+void ElidedLabel::setText(const QString& text)
+{
+    labelText = text;
+    update();
+}
+
+QString ElidedLabel::text() const { return labelText; }
+
+Qt::Alignment ElidedLabel::alignment() const { return align; }
+
+void ElidedLabel::setAlignment(Qt::Alignment alignment)
+{
+    align = alignment;
+    update();
+}
+
+Qt::TextElideMode ElidedLabel::elideMode() const { return mode; }
+
+void ElidedLabel::setElideMode(Qt::TextElideMode elideMode)
+{
+    mode = elideMode;
+    update();
+}
+
+void ElidedLabel::setItalic(bool italic) { isItalic = italic; }
+
+void ElidedLabel::paintEvent(QPaintEvent* event)
+{
+    QFrame::paintEvent(event);
+
+    QStyleOption opt;
+    opt.initFrom(this);
+
+    QRect cr = contentsRect();
+
+    // Draw standard text
+    QPainter painter(this);
+    if (isItalic) {
+        QFont font(painter.font());
+        font.setItalic(true);
+        painter.setFont(font);
+    }
+
+    QString txt = painter.fontMetrics().elidedText(labelText, mode, cr.width());
+
+    style()->drawItemText(
+        &painter,
+        cr,
+        QStyle::visualAlignment(opt.direction, align),
+        opt.palette,
+        (opt.state & QStyle::State_Enabled) > 0,
+        txt);
+}
diff --git a/src/MaxUsd/Widgets/ElidedLabel.h b/src/MaxUsd/Widgets/ElidedLabel.h
new file mode 100644
index 0000000..0cfb8d0
--- /dev/null
+++ b/src/MaxUsd/Widgets/ElidedLabel.h
@@ -0,0 +1,56 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <QtWidgets/qframe.h>
+
+/**
+ * \brief A simple label class that is able to draw elided text, since the standard
+ * QLabel doesn't support it.
+ */
+class MaxUSDAPI ElidedLabel : public QFrame
+{
+    Q_OBJECT
+    Q_PROPERTY(QString text READ text WRITE setText)
+    Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
+    Q_PROPERTY(Qt::TextElideMode elideMode READ elideMode WRITE setElideMode)
+
+public:
+    explicit ElidedLabel(QWidget* parent = nullptr);
+    explicit ElidedLabel(const QString& text, QWidget* parent = nullptr);
+
+    void    setText(const QString& text);
+    QString text() const;
+
+    void setItalic(bool italic);
+
+    Qt::Alignment alignment() const;
+    void          setAlignment(Qt::Alignment);
+
+    Qt::TextElideMode elideMode() const;
+    void              setElideMode(Qt::TextElideMode);
+
+protected:
+    void paintEvent(QPaintEvent* event) override;
+
+private:
+    QString           labelText;
+    Qt::Alignment     align = Qt::AlignLeft | Qt::AlignVCenter;
+    Qt::TextElideMode mode = Qt::ElideRight;
+    bool              isItalic = false;
+};
\ No newline at end of file
diff --git a/src/MaxUsd/Widgets/QDiagnosticMessagesModel.cpp b/src/MaxUsd/Widgets/QDiagnosticMessagesModel.cpp
new file mode 100644
index 0000000..00d4b35
--- /dev/null
+++ b/src/MaxUsd/Widgets/QDiagnosticMessagesModel.cpp
@@ -0,0 +1,35 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QDiagnosticMessagesModel.h"
+
+namespace MAXUSD_NS_DEF {
+
+QDiagnosticMessagesModel::QDiagnosticMessagesModel(QObject* parent) noexcept
+    : QStandardItemModel { parent }
+{
+    // Nothing to do.
+}
+
+MaxUsd::Diagnostics::Message*
+QDiagnosticMessagesModel::GetItemAtIndex(const QModelIndex& index) const
+{
+    if (index.isValid()) {
+        return static_cast<MaxUsd::Diagnostics::Message*>(index.internalPointer());
+    }
+    return nullptr;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QDiagnosticMessagesModel.h b/src/MaxUsd/Widgets/QDiagnosticMessagesModel.h
new file mode 100644
index 0000000..5a6d18a
--- /dev/null
+++ b/src/MaxUsd/Widgets/QDiagnosticMessagesModel.h
@@ -0,0 +1,57 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+
+#include <MaxUsd.h>
+#include <QtGui/QStandardItemModel.h>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Qt Model to list of Diagnostic Messages emitted by USD.
+ * \remarks Populating the Model with Diagnostic Messages coming from USD is done through the APIs exposted by the
+ * DiagnosticMessagesModelFactory.
+ */
+class QDiagnosticMessagesModel : public QStandardItemModel
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param parent A reference to the parent of the Model.
+     */
+    explicit QDiagnosticMessagesModel(QObject* parent = nullptr) noexcept;
+
+    /**
+     * \brief Return the item at the given index, or "nullptr" if the given index is invalid.
+     * \param index The index for which to return the item.
+     * \return The item at the given index, or "nullptr" if it is invalid.
+     */
+    MaxUsd::Diagnostics::Message* GetItemAtIndex(const QModelIndex& index) const;
+
+    /**
+     * \brief Order of the columns as they appear in the Table.
+     * \remarks The order of the enumeration is important.
+     */
+    enum TABLE_COLUMNS
+    {
+        TYPE,    /// Type of the Diagnostic Message.
+        CONTENT, /// Human-readable text content of the Message.
+        LAST     /// Last element of the enum.
+    };
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QSpinnerOverlayWidget.cpp b/src/MaxUsd/Widgets/QSpinnerOverlayWidget.cpp
new file mode 100644
index 0000000..bae0cee
--- /dev/null
+++ b/src/MaxUsd/Widgets/QSpinnerOverlayWidget.cpp
@@ -0,0 +1,102 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QSpinnerOverlayWidget.h"
+
+namespace MAXUSD_NS_DEF {
+
+QSpinnerOverlayWidget::QSpinnerOverlayWidget(QWidget* target)
+    : QLabel { target }
+{
+    resizeEventFilter
+        = std::make_unique<ResizeEventFilter>(target, [this]() { OnTargetResized(); });
+    target->installEventFilter(resizeEventFilter.get());
+
+    // Center the text within the bounds of the target, and make sure long text can wrap around its
+    // width:
+    setAlignment({ Qt::AlignCenter | Qt::AlignVCenter | Qt::TextWordWrap });
+    setWordWrap(true);
+
+    Hide();
+}
+
+void QSpinnerOverlayWidget::StartSpinning() { SetMode(MODE::SPINNER); }
+
+void QSpinnerOverlayWidget::StartProgress() { SetMode(MODE::PROGRESS); }
+
+void QSpinnerOverlayWidget::SetProgress(float currentProgress)
+{
+    spinnerWidget->SetProgress(currentProgress);
+}
+
+void QSpinnerOverlayWidget::ShowErrorMessage(const QString& message)
+{
+    SetMode(MODE::ERROR_TEXT, message);
+}
+
+bool QSpinnerOverlayWidget::ShowInformationMessage(const QString& message)
+{
+    if (mode == MODE::ERROR_TEXT) {
+        return false;
+    } else {
+        SetMode(MODE::INFORMATION_TEXT, message);
+        return true;
+    }
+}
+
+void QSpinnerOverlayWidget::Hide(bool hideErrorMessage)
+{
+    if (!hideErrorMessage && mode == MODE::ERROR_TEXT) {
+        // If an error was displayed, make sure it remains visible:
+        return;
+    }
+    SetMode(MODE::OFF);
+}
+
+void QSpinnerOverlayWidget::SetMode(MODE mode, const QString& message)
+{
+    if (mode == MODE::SPINNER) {
+        spinnerWidget->StartSpinning();
+    } else if (mode == MODE::PROGRESS) {
+        spinnerWidget->StartProgress();
+    } else {
+        spinnerWidget->Hide();
+    }
+
+    if (mode == MODE::ERROR_TEXT || mode == MODE::INFORMATION_TEXT) {
+        QString formattedPayload = message;
+        formattedPayload.replace("\n", "<br>");
+
+        QColor textColor = mode == MODE::ERROR_TEXT ? errorColor : infoColor;
+        setText(QString("<font style=\"color: %1;\">%2</font>")
+                    .arg(textColor.name())
+                    .arg(formattedPayload));
+    } else {
+        setText("");
+    }
+
+    setVisible(mode != MODE::OFF);
+
+    this->mode = mode;
+}
+
+void QSpinnerOverlayWidget::OnTargetResized()
+{
+    QSize parentSize = parentWidget()->size();
+    resize(parentSize);
+    spinnerWidget->resize(parentSize);
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QSpinnerOverlayWidget.h b/src/MaxUsd/Widgets/QSpinnerOverlayWidget.h
new file mode 100644
index 0000000..cbad784
--- /dev/null
+++ b/src/MaxUsd/Widgets/QSpinnerOverlayWidget.h
@@ -0,0 +1,116 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "QSpinnerWidget.h"
+#include "ResizeEventFilter.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <QtWidgets/QLabel.h>
+#include <memory>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Qt Widget to overlay a Spinner on top of a target Widget in order to convey information to the User.
+ * \remarks Inspired from the behavior of the Shotgun progress indicator.
+ */
+class MaxUSDAPI QSpinnerOverlayWidget : public QLabel
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param target A reference to the Widget on top of which this overlay should be displayed.
+     */
+    explicit QSpinnerOverlayWidget(QWidget* target);
+
+    /**
+     * \brief Show the overlay and start animating the Spinner.
+     */
+    void StartSpinning();
+
+    /**
+     * \brief Show the overlay and display an animated progress arc representing the progress of an ongoing task.
+     */
+    void StartProgress();
+
+    /**
+     * \brief Set the current progress of the ongoing task.
+     * \param currentProgress Current progress of the task, in the [0.0;1.0] range.
+     */
+    void SetProgress(float currentProgress);
+
+    /**
+     * \brief Display an error message to the User.
+     * \param message The error message to display to the User (supporting HTML).
+     */
+    void ShowErrorMessage(const QString& message);
+
+    /**
+     * \brief Display an information message to the User.
+     * \param message The information message to display to the User.
+     * \return A flag indicating if the message was displayed to the User (supporting HTML).
+     */
+    bool ShowInformationMessage(const QString& message);
+
+    /**
+     * \brief Hide the overlay.
+     * \param hideErrorMessage A flag indicating if the error message should also be hidden along with the overlay.
+     */
+    void Hide(bool hideErrorMessage = true);
+
+protected:
+    /// Mode in which the Spinner can be:
+    enum class MODE
+    {
+        OFF,     ///< Overlay is hidden.
+        SPINNER, ///< Overlay is shown and its Spinner is in "spinner" mode, displaying a rotating
+                 ///< arc.
+        ERROR_TEXT,       ///< Overlay is shown, along with an error message.
+        INFORMATION_TEXT, ///< Overlay is shown, along with an information message.
+        PROGRESS, ///< Overlay is shown and its Spinner is in "progress" mode, displaying a arc.
+        LAST      ///< Last item in the list of supported Modes.
+    };
+
+    /**
+     * \brief Set the state of the overlay and its Spinner Widget.
+     * \param mode The new Mode in which to set the Widget.
+     * \param message A message to display to the User when the mode is either "ERROR_TEXT" or "INFORMATION_TEXT".
+     */
+    void SetMode(MODE mode, const QString& message = "");
+
+    /**
+     * \brief Callback executed when the target Widget has been resized.
+     */
+    void OnTargetResized();
+
+protected:
+    /// Current Mode of the Overlay:
+    MODE mode { MODE::OFF };
+
+    /// Color of the error message text:
+    QColor errorColor { 255, 0, 0 };
+    /// Color of the information message text:
+    QColor infoColor { 255, 255, 255 };
+
+    /// Event filter used to handle notifications about the overlayed Widget being resized:
+    std::unique_ptr<ResizeEventFilter> resizeEventFilter;
+    /// Spinner widget used to display information to the User about the progress of a task:
+    std::unique_ptr<QSpinnerWidget> spinnerWidget { std::make_unique<QSpinnerWidget>(this) };
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QSpinnerWidget.cpp b/src/MaxUsd/Widgets/QSpinnerWidget.cpp
new file mode 100644
index 0000000..a11ee1e
--- /dev/null
+++ b/src/MaxUsd/Widgets/QSpinnerWidget.cpp
@@ -0,0 +1,135 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QSpinnerWidget.h"
+
+namespace MAXUSD_NS_DEF {
+
+QSpinnerWidget::QSpinnerWidget(QWidget* parent)
+    : QWidget { parent }
+{
+    setVisible(false);
+
+    connect(&timer, &QTimer::timeout, this, &QSpinnerWidget::DrawNewFrame);
+}
+
+void QSpinnerWidget::StartSpinning()
+{
+    setVisible(true);
+
+    timer.start(40);
+    mode = MODE::SPINNER;
+}
+
+void QSpinnerWidget::StartProgress()
+{
+    setVisible(true);
+
+    timer.start(1000 / UPDATES_PER_SECOND);
+    mode = MODE::PROGRESS;
+    spinAngle = 0.0f;
+    spinAngleTo = 0.0f;
+}
+
+void QSpinnerWidget::SetProgress(float currentProgress)
+{
+    spinAngle = std::max(previousSpinAngleTo, spinAngle);
+    spinAngleTo = 360.0f * currentProgress;
+
+    repaint();
+}
+
+void QSpinnerWidget::Hide()
+{
+    setVisible(false);
+
+    timer.stop();
+    mode = MODE::OFF;
+}
+
+void QSpinnerWidget::DrawNewFrame()
+{
+    if (mode == MODE::SPINNER) {
+        spinAngle += 1.0f;
+        if (spinAngle >= 90.0f) {
+            spinAngle = 0.0f;
+        }
+    } else if (mode == MODE::PROGRESS) {
+        // The progress attempts to maintain a smooth impression of the progress: instead of jumping
+        // straight to the requested value, it will slide over to it.
+        //
+        // Sliding from 0.0 to 1.0 is done in a single second, so the sliding is quick to the eye.
+        // If there are more than UPDATES_PER_SECOND steps, this sliding effect is actually not
+        // visible since individual increments between steps will be smaller than 1.0 /
+        // UPDATES_PER_SECOND of the circumference.
+        spinAngle = std::min(spinAngleTo, spinAngle + 360.0f / UPDATES_PER_SECOND);
+        heartBeat = ++heartBeat % UPDATES_PER_SECOND;
+    }
+
+    repaint();
+}
+
+void QSpinnerWidget::DrawOpenedCircle(QPainter& painter, float startAngle, float spanAngle)
+{
+    QPen pen(baseColor);
+    pen.setWidth(3);
+    painter.setPen(pen);
+    painter.translate(
+        static_cast<qreal>((painter.device()->width() - SPINNER_DIMENSION) / 2),
+        static_cast<qreal>((painter.device()->height() - SPINNER_DIMENSION) / 2));
+    painter.drawArc(
+        QRect(0, 0, SPINNER_DIMENSION, SPINNER_DIMENSION),
+        static_cast<int>(startAngle * 16),
+        static_cast<int>(spanAngle * 16));
+}
+
+void QSpinnerWidget::DrawHeartBeat(QPainter& painter)
+{
+    float halfUpdate = UPDATES_PER_SECOND / 2.0f;
+    float amplitude = (std::fabs(heartBeat - halfUpdate) / halfUpdate) * 6.0f;
+    float angle = (spinAngle - 90.0f) * static_cast<float>(M_PI) / 180.0f;
+    float offset = (SPINNER_DIMENSION - amplitude) / 2.0f;
+
+    QPen   pen(baseColor);
+    QBrush brush(baseColor);
+    pen.setWidth(1);
+    painter.setPen(pen);
+    painter.setBrush(brush);
+    painter.drawEllipse(QRectF(
+        std::cosf(angle) * (SPINNER_DIMENSION / 2.0f) + offset,
+        std::sinf(angle) * (SPINNER_DIMENSION / 2.0f) + offset,
+        amplitude,
+        amplitude));
+}
+
+void QSpinnerWidget::paintEvent(QPaintEvent* e)
+{
+    if (mode != MODE::OFF) {
+        QPainter painter(this);
+        painter.begin(this);
+        painter.setRenderHint(QPainter::Antialiasing);
+
+        if (mode == MODE::SPINNER) {
+            DrawOpenedCircle(painter, -spinAngle * 4, 340);
+        } else if (mode == MODE::PROGRESS) {
+            DrawOpenedCircle(painter, 90, -spinAngle);
+            DrawHeartBeat(painter);
+        }
+
+        painter.end();
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QSpinnerWidget.h b/src/MaxUsd/Widgets/QSpinnerWidget.h
new file mode 100644
index 0000000..56972e8
--- /dev/null
+++ b/src/MaxUsd/Widgets/QSpinnerWidget.h
@@ -0,0 +1,122 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd.h>
+#include <QtCore/QTimer.h>
+#include <QtGui/QPainter.h>
+#include <QtWidgets/QWidget.h>
+
+/**
+ * \brief Widget to display a spinner or report progress about on ongoing task.
+ * \remarks Inspired from the behavior of the Shotgun progress indicator.
+ */
+namespace MAXUSD_NS_DEF {
+
+class QSpinnerWidget : public QWidget
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param parent A reference to the parent of the Spinner.
+     */
+    explicit QSpinnerWidget(QWidget* parent = nullptr);
+
+    /**
+     * \brief Start animating the Spinner.
+     */
+    void StartSpinning();
+
+    /**
+     * \brief Show an animated progress arc representing the progress of an ongoing task.
+     */
+    void StartProgress();
+
+    /**
+     * \brief Set the current progress of the ongoing task.
+     * \param currentProgress Current progress of the task, in the [0.0;1.0] range.
+     */
+    void SetProgress(float currentProgress);
+
+    /**
+     * \brief Hide the Spinner.
+     */
+    void Hide();
+
+protected:
+    /**
+     * \brief Draw a new frame for the Spinner.
+     */
+    void DrawNewFrame();
+
+    /**
+     * \brief Draw an arc.
+     * \param painter Painter with which to draw.
+     * \param startAngle Angle at which to start drawing the arc (in degrees).
+     * \param spanAngle Angle the arc covers (in degrees).
+     */
+    void DrawOpenedCircle(QPainter& painter, float startAngle, float spanAngle);
+
+    /**
+     * \brief Draw the heartbeat cursor of the progress, to provide feedback to the User and avoid making it look like
+     * the UI is frozen when the progress is not being updated.
+     * \param painter Painter with which to draw.
+     */
+    void DrawHeartBeat(QPainter& painter);
+
+    /**
+     * \brief Paint the Spinner widget on screen.
+     * \param e Data associated to the Paint event.
+     */
+    void paintEvent(QPaintEvent* e);
+
+protected:
+    /// Mode in which the Spinner can be:
+    enum class MODE
+    {
+        OFF,      ///< Spinner is off.
+        SPINNER,  ///< Spinner is in "spinner" mode, displaying a rotating arc.
+        PROGRESS, ///< Spinner is in "progress" mode, displaying a arc representing progress
+                  ///< percentage.
+        LAST      ///< Last item in the list of supported Modes.
+    };
+
+    /// Number of redraws to perform per second:
+    static constexpr unsigned short UPDATES_PER_SECOND { 25 };
+    /// Spinner dimension (in pixels):
+    static constexpr size_t SPINNER_DIMENSION { 80 };
+
+    /// Current Mode of the Spinner:
+    MODE mode { MODE::OFF };
+
+    /// Base color of the Spinner:
+    QColor baseColor { 255, 255, 255 };
+
+    /// Timer used to update the animation of the spinner:
+    QTimer timer { this };
+
+    /// Current spinner angle:
+    float spinAngle { 0.0f };
+    /// Target angle towards which to spin:
+    float spinAngleTo { 0.0f };
+    /// Spinner angle at the time of the last paint:
+    float previousSpinAngleTo { 0.0f };
+
+    /// Heartbeat counter indicating how many ticks occured during the last second, in order to draw
+    /// the size of the heartbeat indicator:
+    int heartBeat { 0 };
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QTreeItem.cpp b/src/MaxUsd/Widgets/QTreeItem.cpp
new file mode 100644
index 0000000..5632beb
--- /dev/null
+++ b/src/MaxUsd/Widgets/QTreeItem.cpp
@@ -0,0 +1,31 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QTreeItem.h"
+
+namespace MAXUSD_NS_DEF {
+
+QTreeItem::QTreeItem(const pxr::UsdPrim& prim, const QString& text) noexcept
+    : QStandardItem { text }
+    , prim { prim }
+{
+    // Nothing to do.
+}
+
+pxr::UsdPrim QTreeItem::GetPrim() const { return prim; }
+
+int QTreeItem::type() const { return QStandardItem::ItemType::UserType; }
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QTreeItem.h b/src/MaxUsd/Widgets/QTreeItem.h
new file mode 100644
index 0000000..252f728
--- /dev/null
+++ b/src/MaxUsd/Widgets/QTreeItem.h
@@ -0,0 +1,62 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <pxr/usd/usd/prim.h>
+
+#include <MaxUsd.h>
+#include <QtGui/QStandardItem>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Item representing a node used to build a Qt QTreeModel.
+ * \remarks This item is intended to hold references to USD Prims in the future, so additional information can be
+ * displayed to the User when interacting with Tree content.
+ */
+class QTreeItem : public QStandardItem
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param prim The USD Prim to represent with this item.
+     * \param text Column text to display on the View of the the Qt QTreeModel.
+     */
+    explicit QTreeItem(const pxr::UsdPrim& prim, const QString& text) noexcept;
+
+    /**
+     * \brief Destructor.
+     */
+    virtual ~QTreeItem() = default;
+
+    /**
+     * \brief Return the USD Prim that is represented by the item.
+     * \return The USD Prim that is represented by the item.
+     */
+    pxr::UsdPrim GetPrim() const;
+
+    /**
+     * \brief Return a flag indicating the type of the item.
+     * \remarks This is used by Qt to distinguish custom items from the base class.
+     * \return A flag indicating that the type is a custom iem, different from the base class.
+     */
+    int type() const override;
+
+protected:
+    /// The USD Prim that the item represents in the QTreeModel.
+    pxr::UsdPrim prim;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QTreeModel.cpp b/src/MaxUsd/Widgets/QTreeModel.cpp
new file mode 100644
index 0000000..fcd2764
--- /dev/null
+++ b/src/MaxUsd/Widgets/QTreeModel.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QTreeModel.h"
+
+namespace MAXUSD_NS_DEF {
+
+QTreeModel::QTreeModel(QObject* parent) noexcept
+    : QStandardItemModel { parent }
+{
+    // Nothing to do.
+}
+
+QTreeItem* QTreeModel::GetItemAtIndex(const QModelIndex& index) const
+{
+    if (index.isValid()) {
+        return static_cast<QTreeItem*>(index.internalPointer());
+    }
+    return nullptr;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QTreeModel.h b/src/MaxUsd/Widgets/QTreeModel.h
new file mode 100644
index 0000000..c0aa39a
--- /dev/null
+++ b/src/MaxUsd/Widgets/QTreeModel.h
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd.h>
+#include <QtGui/QStandardItemModel.h>
+
+namespace MAXUSD_NS_DEF {
+
+class QTreeItem;
+
+/**
+ * \brief Qt Model to explore the hierarchy of a USD file.
+ * \remarks Populating the Model with the content of a USD file is done through the APIs exposted by the
+ * TreeModelFactory.
+ */
+class QTreeModel : public QStandardItemModel
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param parent A reference to the parent of the QTreeModel.
+     */
+    explicit QTreeModel(QObject* parent = nullptr) noexcept;
+
+    /**
+     * \brief Return the item at the given index, or "nullptr" if the given index is invalid.
+     * \param index The index for which to return the item.
+     * \return The item at the given index, or "nullptr" if it is invalid.
+     */
+    QTreeItem* GetItemAtIndex(const QModelIndex& index) const;
+
+    /**
+     * \brief Order of the columns as they appear in the Tree.
+     * \remarks The order of the enumeration is important.
+     */
+    enum TREE_COLUMNS
+    {
+        NAME, /// Name of the item as it appears in the TreeView.
+        PATH, /// Path of the item relative to the root.
+        TYPE, /// Type of the primitive.
+        LAST  /// Last element of the enum.
+    };
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.cpp b/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.cpp
new file mode 100644
index 0000000..e272ca6
--- /dev/null
+++ b/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.cpp
@@ -0,0 +1,97 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "QmaxUsdDoubleSpinBox.h"
+
+#pragma warning(push)
+#pragma warning(disable : 4251 4275 4800)
+#include <QtCore/QObject>
+#include <QtGui/QtGui>
+#include <QtWidgets/QtWidgets>
+#pragma warning(pop)
+
+namespace MAXUSD_NS_DEF {
+
+QmaxUsdDoubleSpinBox::QmaxUsdDoubleSpinBox(QWidget* parent)
+    : QmaxDoubleSpinBox(parent)
+{
+}
+
+void QmaxUsdDoubleSpinBox::mousePressEvent(QMouseEvent* event)
+{
+    // Overriding right-click behavior of the QmaxDoubleSpinBox
+    if (event->button() == Qt::RightButton) {
+        if (event->modifiers().testFlag(Qt::ControlModifier)) {
+            reset();
+            event->accept();
+        }
+        return;
+    }
+    QmaxDoubleSpinBox::mousePressEvent(event);
+}
+
+void QmaxUsdDoubleSpinBox::contextMenuEvent(QContextMenuEvent* event)
+{
+    if (QContextMenuEvent::Mouse == event->reason()
+        && (!lineEdit()->rect().contains(event->pos())
+            || event->modifiers().testFlag(Qt::ControlModifier))) {
+        if (event->modifiers().testFlag(Qt::ControlModifier)) {
+            // create the ctrl-rmb click otherwise we get trap in the context menu handling
+            QMouseEvent pressEvt(
+                QEvent::MouseButtonPress,
+                event->pos(),
+                event->globalPos(),
+                Qt::RightButton,
+                Qt::RightButton,
+                Qt::ControlModifier);
+            QCoreApplication::sendEvent(this, &pressEvt);
+        } else {
+            // Do nothing if we hover the buttons, because right clicking on the buttons
+            // resets the spin box's value.
+            event->accept();
+        }
+        return;
+    }
+
+    QMenu menu;
+
+    QAction* copyAction = menu.addAction(tr("Copy"));
+    copyAction->setShortcut(QKeySequence::Copy);
+    copyAction->setEnabled(lineEdit()->hasSelectedText());
+    QObject::connect(copyAction, &QAction::triggered, lineEdit(), &QLineEdit::copy);
+
+    QAction* pasteAction = menu.addAction(tr("Paste"));
+    pasteAction->setShortcut(QKeySequence::Paste);
+    pasteAction->setEnabled(!QApplication::clipboard()->text().isEmpty());
+    QObject::connect(pasteAction, &QAction::triggered, lineEdit(), &QLineEdit::paste);
+
+    menu.addSeparator();
+    QAction* selectAllAction = menu.addAction(tr("Select All"));
+    selectAllAction->setShortcut(QKeySequence::SelectAll);
+    QObject::connect(selectAllAction, &QAction::triggered, lineEdit(), &QLineEdit::selectAll);
+
+    menu.addSeparator();
+
+    QAction* resetAction = menu.addAction(tr("Reset to Default\tCTRL+RMB"));
+    connect(resetAction, &QAction::triggered, this, &QmaxDoubleSpinBox::reset);
+
+    Q_EMIT contextMenuCustomization(menu);
+    if (!menu.isEmpty()) {
+        menu.exec(event->globalPos());
+    }
+    event->accept();
+}
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.h b/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.h
new file mode 100644
index 0000000..dfd2425
--- /dev/null
+++ b/src/MaxUsd/Widgets/QmaxUsdDoubleSpinBox.h
@@ -0,0 +1,39 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <Qt/QmaxSpinBox.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+
+// MaxUsd QmaxDoubleSpinBox override to handle the context menu
+// there is an issue with the 3ds Max DoubleSpinBox context menu
+// which displays a 'Set to Minimum  RMB' menu item but resets the value
+class MaxUSDAPI QmaxUsdDoubleSpinBox : public MaxSDK::QmaxDoubleSpinBox
+{
+    Q_OBJECT
+public:
+    explicit QmaxUsdDoubleSpinBox(QWidget* parent = nullptr);
+
+protected:
+    void mousePressEvent(QMouseEvent* event) override;
+    void contextMenuEvent(QContextMenuEvent* event) override;
+};
+
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsd/Widgets/ResizeEventFilter.cpp b/src/MaxUsd/Widgets/ResizeEventFilter.cpp
new file mode 100644
index 0000000..0b722ea
--- /dev/null
+++ b/src/MaxUsd/Widgets/ResizeEventFilter.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ResizeEventFilter.h"
+
+namespace MAXUSD_NS_DEF {
+
+ResizeEventFilter::ResizeEventFilter(QObject* target, const std::function<void()>& onResize)
+    : QObject { target }
+    , onResize { onResize }
+{
+    // Nothing to do.
+}
+
+bool ResizeEventFilter::eventFilter(QObject* object, QEvent* e)
+{
+    if (e->type() == QEvent::Resize) {
+        onResize();
+    }
+
+    // Do not block the event from being broadcasted to other listeners:
+    return false;
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/ResizeEventFilter.h b/src/MaxUsd/Widgets/ResizeEventFilter.h
new file mode 100644
index 0000000..221f6c5
--- /dev/null
+++ b/src/MaxUsd/Widgets/ResizeEventFilter.h
@@ -0,0 +1,51 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd.h>
+#include <QtCore/QEvent>
+#include <QtCore/QObject>
+#include <functional>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Qt event filter for Widget resize events.
+ * \remarks This should be moved to an properly-supported Qt objects using "Q_OBJECT" and "signals" notation, once the
+ * transition to newer 3ds Max version with Qt project settings is supported.
+ */
+class ResizeEventFilter : public QObject
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param target A reference to the Object whose resize event should be listened to.
+     * \param onResize Callback to execute upon receiving a resize notification from the given target.
+     */
+    ResizeEventFilter(QObject* target, const std::function<void()>& onResize);
+
+    /**
+     * \brief Event handler executed upon receiving event notifications from the targeted Widget.
+     * \param object A reference to the object emitting the event.
+     * \param e Data about the event that was emitted.
+     */
+    bool eventFilter(QObject* object, QEvent* e) override;
+
+protected:
+    /// Callback to execute upon receiving a resize notification from the given target.
+    std::function<void()> onResize;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/TooltipEventFilter.cpp b/src/MaxUsd/Widgets/TooltipEventFilter.cpp
new file mode 100644
index 0000000..82593ac
--- /dev/null
+++ b/src/MaxUsd/Widgets/TooltipEventFilter.cpp
@@ -0,0 +1,39 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TooltipEventFilter.h"
+
+#include <QtCore/QEvent>
+
+namespace MAXUSD_NS_DEF {
+
+TooltipEventFilter::TooltipEventFilter(const std::function<void(QObject* object)>& onTooltipFilter)
+    : onTooltip { onTooltipFilter }
+{
+    // Nothing to do.
+}
+
+bool TooltipEventFilter::eventFilter(QObject* object, QEvent* e)
+{
+    if (e->type() == QEvent::ToolTip) {
+        onTooltip(object);
+
+        return true;
+    }
+
+    return QObject::eventFilter(object, e);
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/TooltipEventFilter.h b/src/MaxUsd/Widgets/TooltipEventFilter.h
new file mode 100644
index 0000000..450251b
--- /dev/null
+++ b/src/MaxUsd/Widgets/TooltipEventFilter.h
@@ -0,0 +1,53 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <QtCore/QObject>
+#include <functional>
+
+namespace MAXUSD_NS_DEF {
+
+/**
+ * \brief Qt event filter for Widget tooltip events.
+ * \remarks This should be moved to an properly-supported Qt objects using "Q_OBJECT" and "signals" notation, once the
+ * transition to newer 3ds Max version with Qt project settings is supported.
+ */
+class MaxUSDAPI TooltipEventFilter : public QObject
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param target A reference to the Object whose Tooltip event should be listened to.
+     * \param onTooltipFilter Callback to execute upon receiving a tooltip notification from the given target.
+     */
+    TooltipEventFilter(const std::function<void(QObject* object)>& onTooltipFilter);
+
+    /**
+     * \brief Event handler executed upon receiving event notifications from the targeted Widget.
+     * \param object A reference to the object emitting the event.
+     * \param e Data about the event that was emitted.
+     */
+    bool eventFilter(QObject* object, QEvent* e) override;
+
+protected:
+    /// Callback to execute upon receiving a Tooltip notification from the given target.
+    std::function<void(QObject* object)> onTooltip;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/TreeModelFactory.cpp b/src/MaxUsd/Widgets/TreeModelFactory.cpp
new file mode 100644
index 0000000..7aa7adc
--- /dev/null
+++ b/src/MaxUsd/Widgets/TreeModelFactory.cpp
@@ -0,0 +1,230 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TreeModelFactory.h"
+
+#include "QTreeItem.h"
+#include "QTreeModel.h"
+
+#include <pxr/usd/usd/primrange.h>
+#include <pxr/usd/usdGeom/subset.h>
+
+#include <QtCore/QList>
+#include <QtCore/QObject>
+#include <QtCore/QRegularExpression>
+#include <cctype>
+#include <type_traits>
+
+namespace MAXUSD_NS_DEF {
+
+// Ensure the TreeModelFactory is not constructible, as it is intended to be used only through
+// static factory methods.
+//
+// While additional traits like std::is_copy_constructible or std::is_move_constructible could also
+// be used, the fact that the Factory cannot be (traditionally) instantiated prevents other
+// constructors and assignments operators from being useful.
+static_assert(
+    !std::is_constructible<TreeModelFactory>::value,
+    "TreeModelFactory should not be constructible.");
+
+std::unique_ptr<QTreeModel> TreeModelFactory::CreateEmptyTreeModel(QObject* parent)
+{
+    std::unique_ptr<QTreeModel> treeModel = std::make_unique<QTreeModel>(parent);
+    treeModel->setHorizontalHeaderLabels(
+        { QObject::tr("Prim Name"), QObject::tr("Path"), QObject::tr("Type") });
+    return treeModel;
+}
+
+std::unique_ptr<QTreeModel>
+TreeModelFactory::CreateFromStage(const pxr::UsdStageRefPtr& stage, QObject* parent)
+{
+    std::unique_ptr<QTreeModel> treeModel = CreateEmptyTreeModel(parent);
+    BuildTreeHierarchy(stage->GetPseudoRoot(), treeModel->invisibleRootItem());
+    return treeModel;
+}
+
+std::unique_ptr<QTreeModel> TreeModelFactory::CreateFromSearch(
+    const pxr::UsdStageRefPtr&      stage,
+    const std::string&              searchFilter,
+    TypeFilteringMode               filterMode,
+    const std::vector<std::string>& filteredTypeNames,
+    QObject*                        parent)
+{
+    // Optimization: If the provided search filter is empty, fallback to directly importing the
+    // content of the given USD Stage. This can can happen in cases where the User already typed
+    // characters in the search box before pressing backspace up until all characters were removed.
+    if (searchFilter.empty()
+        && (filteredTypeNames.empty() || filterMode == TypeFilteringMode::NoFilter)) {
+        return CreateFromStage(stage, parent);
+    }
+
+    std::unordered_set<pxr::SdfPath, SdfPathHash> primsToIncludeInTree;
+    const auto                                    primPaths
+        = FindMatchingPrimPaths(stage, searchFilter, filterMode, filteredTypeNames);
+    for (const auto& matchingPath : primPaths) {
+        pxr::UsdPrim prim = stage->GetPrimAtPath(matchingPath);
+
+        // When walking up the ancestry chain, the Root Node will end up being considered once and
+        // its parent (an invalid Prim) will be selected. Since there is no point iterating up the
+        // hierarchy at this point, stop processing the current Prim an move on to the next one
+        // matching the search filter.
+        while (prim.IsValid()) {
+            bool primAlreadyIncluded
+                = primsToIncludeInTree.find(prim.GetPath()) != primsToIncludeInTree.end();
+            if (primAlreadyIncluded) {
+                // If the USD Prim is already part of the set of search results to be displayed, it
+                // is unnecessary to walk up the ancestory chain in an attempt to process further
+                // Prims, as it means they have already been added to the list up to the Root Node.
+                break;
+            }
+
+            primsToIncludeInTree.insert(prim.GetPath());
+            prim = prim.GetParent();
+        }
+    }
+
+    // Optimization: Count the number of USD Prims expected to be inserted in the QTreeModel, so
+    // that the search process can stop early if all USD Prims have already been found. While
+    // additional "narrowing" techniques can be used in the future to further enhance the
+    // performance, this may provide sufficent performance in most cases to remain as-is for early
+    // User feedback.
+    size_t                      insertionsRemaining = primsToIncludeInTree.size();
+    std::unique_ptr<QTreeModel> treeModel = TreeModelFactory::CreateEmptyTreeModel(parent);
+    BuildTreeHierarchy(
+        stage->GetPseudoRoot(),
+        treeModel->invisibleRootItem(),
+        primsToIncludeInTree,
+        insertionsRemaining);
+    return treeModel;
+}
+
+std::vector<pxr::SdfPath> TreeModelFactory::FindMatchingPrimPaths(
+    const pxr::UsdStageRefPtr&      stage,
+    const std::string&              searchFilter,
+    TypeFilteringMode               filterMode,
+    const std::vector<std::string>& filteredTypeNames)
+{
+    // Using regular expressions when searching through the set of data can be expensive compared to
+    // doing a plain text search. In addition, it may be possible for the User to want to search for
+    // content containing the "*" character instead of using this token as wildcard, which is not
+    // currently supported. In order to properly handle this, the UI could expose search options in
+    // the future, where Users would be able to pick the type of search they wish to perform (likely
+    // defaulting to a plain text search).
+    bool                      useWildCardSearch = searchFilter.find('*') != std::string::npos;
+    std::vector<pxr::SdfPath> matchingPrimPaths;
+
+    for (const auto& prim : stage->TraverseAll()) {
+        if (searchFilter.empty()
+            || FindString(prim.GetName().GetString(), searchFilter, useWildCardSearch)) {
+            if (!filteredTypeNames.empty()) {
+                if (filterMode == TypeFilteringMode::Include
+                    && std::find(
+                           filteredTypeNames.begin(), filteredTypeNames.end(), prim.GetTypeName())
+                        == filteredTypeNames.end()) {
+                    continue;
+                }
+                if (filterMode == TypeFilteringMode::Exclude
+                    && std::find(
+                           filteredTypeNames.begin(), filteredTypeNames.end(), prim.GetTypeName())
+                        != filteredTypeNames.end()) {
+                    continue;
+                }
+            }
+            matchingPrimPaths.emplace_back(prim.GetPath());
+        }
+    }
+    return matchingPrimPaths;
+}
+
+QList<QStandardItem*> TreeModelFactory::CreatePrimRow(const pxr::UsdPrim& prim)
+{
+    // Cache the values to be displayed, in order to avoid querying the USD Prim too frequently
+    // (despite it being cached and optimized for frequent access). Avoiding frequent conversions
+    // from USD Strings to Qt Strings helps in keeping memory allocations low.
+    return { new QTreeItem(
+                 prim,
+                 prim.IsPseudoRoot() ? QObject::tr("Root")
+                                     : QString::fromStdString(prim.GetName().GetString())),
+             new QTreeItem(prim, QString::fromStdString(prim.GetPath().GetString())),
+             new QTreeItem(prim, QString::fromStdString(prim.GetTypeName().GetString())) };
+}
+
+void TreeModelFactory::BuildTreeHierarchy(const pxr::UsdPrim& prim, QStandardItem* parentItem)
+{
+    QList<QStandardItem*> primDataCells = CreatePrimRow(prim);
+    parentItem->appendRow(primDataCells);
+
+    for (const auto& childPrim : prim.GetAllChildren()) {
+        if (!childPrim.IsA<pxr::UsdGeomSubset>()) {
+            BuildTreeHierarchy(childPrim, primDataCells.front());
+        }
+    }
+}
+
+void TreeModelFactory::BuildTreeHierarchy(
+    const pxr::UsdPrim&          prim,
+    QStandardItem*               parentItem,
+    const unordered_sdfpath_set& primsToIncludeInTree,
+    size_t&                      insertionsRemaining)
+{
+    bool primShouldBeIncluded
+        = primsToIncludeInTree.find(prim.GetPath()) != primsToIncludeInTree.end();
+    if (primShouldBeIncluded) {
+        QList<QStandardItem*> primDataCells = CreatePrimRow(prim);
+        parentItem->appendRow(primDataCells);
+
+        // Only continue processing additional USD Prims if all expected results have not already
+        // been found:
+        if (--insertionsRemaining > 0) {
+            for (const auto& childPrim : prim.GetAllChildren()) {
+                BuildTreeHierarchy(
+                    childPrim, primDataCells.front(), primsToIncludeInTree, insertionsRemaining);
+            }
+        }
+    }
+}
+
+bool TreeModelFactory::FindString(
+    const std::string& haystack,
+    const std::string& needle,
+    bool               useWildCardSearch)
+{
+    // NOTE: Most of the time, the needle is unlikely to contain a wildcard search.
+    if (useWildCardSearch) {
+        // Needle contains at least one wildcard character, proceed with a regular expression
+        // search.
+
+        // NOTE: Both leading and trailing wildcards are added to the needle in order to make sure
+        // search is made against Prims whose name contains the given search filter. Otherwise,
+        // searching for "lorem*ipsum" would match "lorem_SOME-TEXT_ipsum" but not
+        // "SOME-TEXT_lorem_ipsum", which is inconvenient as too restrictive for casual Users to
+        // type. This ensure search results are handled in a similar way to Windows Explorer, for
+        // example.
+        const QRegularExpression regularExpression(
+            QString::fromStdString("*" + needle + "*"), QRegularExpression::CaseInsensitiveOption);
+        return regularExpression.match(QString::fromStdString(haystack)).hasMatch();
+    } else {
+        // Needle does not contain any wildcard characters, use a simple case-insensitive search:
+        auto it = std::search(
+            haystack.begin(),
+            haystack.end(),
+            needle.begin(),
+            needle.end(),
+            [](char charA, char charB) { return std::toupper(charA) == std::toupper(charB); });
+        return it != haystack.end();
+    }
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/TreeModelFactory.h b/src/MaxUsd/Widgets/TreeModelFactory.h
new file mode 100644
index 0000000..7e357c3
--- /dev/null
+++ b/src/MaxUsd/Widgets/TreeModelFactory.h
@@ -0,0 +1,159 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <QtCore/QList>
+#include <memory>
+#include <string>
+#include <vector>
+
+class QObject;
+class QStandardItem;
+
+namespace MAXUSD_NS_DEF {
+
+class QTreeModel;
+
+/**
+ * \brief Factory to create a tree-like structure of USD content suitable to be displayed in a TreeView.
+ */
+class MaxUSDAPI TreeModelFactory
+{
+private:
+    /**
+     * \brief Default Constructor (deleted).
+     */
+    TreeModelFactory() = delete;
+
+public:
+    enum class TypeFilteringMode
+    {
+        NoFilter,
+        Include,
+        Exclude
+    };
+
+    /**
+     * \brief Create an empty QTreeModel.
+     * \param parent A reference to the parent of the QTreeModel.
+     * \return An empty QTreeModel.
+     */
+    static std::unique_ptr<QTreeModel> CreateEmptyTreeModel(QObject* parent = nullptr);
+
+    /**
+     * \brief Create a QTreeModel from the given USD Stage.
+     * \param stage A reference to the USD Stage from which to create a QTreeModel.
+     * \param parent A reference to the parent of the QTreeModel.
+     * \return A QTreeModel created from the given USD Stage.
+     */
+    static std::unique_ptr<QTreeModel>
+    CreateFromStage(const pxr::UsdStageRefPtr& stage, QObject* parent = nullptr);
+
+    /**
+     * \brief Create a QTreeModel from the given search filter applied to the given USD Stage.
+     * \param stage A reference to the USD Stage from which to create a QTreeModel.
+     * \param searchFilter A text filter to use as case-insensitive wildcard search pattern to find matching USD Prims
+     * in the given USD Stage.
+     * \param filterMode The applied filter type. Include or exclude the Prim types contained in filteredTypeNames.
+     * \param filteredTypeNames The Prim types used to filter the stage.
+     * \param parent A reference to the parent of the QTreeModel.
+     * \return A QTreeModel created from the given search filter applied to the given USD Stage.
+     */
+    static std::unique_ptr<QTreeModel> CreateFromSearch(
+        const pxr::UsdStageRefPtr&      stage,
+        const std::string&              searchFilter,
+        TypeFilteringMode               filterMode = TypeFilteringMode::NoFilter,
+        const std::vector<std::string>& filteredTypeNames = {},
+        QObject*                        parent = nullptr);
+
+protected:
+    /**
+     * \brief Holder for the definition of the metadata information of SdfPath objects, so they can be used in
+     * unordered/hashed STL containers.
+     */
+    struct SdfPathHash
+    {
+        /**
+         * \brief Hashing function for SDF Path objects, leveraging the already-existing hashing function provided by
+         * the USD library.
+         * \param path The SDF Path to hash.
+         * \return The hash value of the given SDF Path.
+         */
+        size_t operator()(const pxr::SdfPath& path) const { return path.GetHash(); }
+    };
+
+    /// Type definition for an STL unordered set of SDF Paths:
+    using unordered_sdfpath_set = std::unordered_set<pxr::SdfPath, SdfPathHash>;
+
+    /**
+     * \brief Create the list of data cells used to represent the given USD Prim's data in the tree.
+     * \param prim The USD Prim for which to create the list of data cells.
+     * \return The List of data cells used to represent the given USD Prim's data in the tree.
+     */
+    static QList<QStandardItem*> CreatePrimRow(const pxr::UsdPrim& prim);
+
+    /**
+     * \brief Build the tree hierarchy starting at the given USD Prim.
+     * \param prim The USD Prim from which to start building the tree hierarchy.
+     * \param parentItem The parent into which to attach the tree hierarchy.
+     */
+    static void BuildTreeHierarchy(const pxr::UsdPrim& prim, QStandardItem* parentItem);
+    /**
+     * \brief Build the tree hierarchy starting at the given USD Prim.
+     * \param prim The USD Prim from which to start building the tree hierarchy.
+     * \param parentItem The parent into which to attach the tree hierarchy.
+     * \param primsToIncludeInTree The list of USD Prim paths to include when building the tree.
+     * \param insertionsRemaining The number of items yet to be inserted.
+     */
+    static void BuildTreeHierarchy(
+        const pxr::UsdPrim&          prim,
+        QStandardItem*               parentItem,
+        const unordered_sdfpath_set& primsToIncludeInTree,
+        size_t&                      insertionsRemaining);
+
+    /**
+     * \brief Return the list of SDF Paths of USD Prims matching the given search filter, based on the name of the Prim.
+     * \remarks This would benefit from being moved to another class in the future, to better separate the logic of
+     * instantiating Models from the logic of how to actually populate them.
+     * \param stage A reference to the USD Stage in which to search for USD Prims matching the given search criteria.
+     * \param searchFilter The search filter against which to try and match USD Prims in the given USD Stage.
+     * \param filterMode The applied filter type. Include or exclude the Prim types contained in filteredTypeNames.
+     * \param filteredTypeNames The Prim types used to filter the stage.
+     * \return The list of SDF Paths of USD Prims matching the given search filter.
+     */
+    static std::vector<pxr::SdfPath> FindMatchingPrimPaths(
+        const pxr::UsdStageRefPtr&      stage,
+        const std::string&              searchFilter,
+        TypeFilteringMode               filterMode,
+        const std::vector<std::string>& filteredTypeNames);
+
+    /**
+     * \brief Check if the given string needle is contained in the given string haystack, in a case-insensitive way.
+     * \remarks This would benefit from being moved to another class in the future.
+     * \param haystack The haystack in which to search for the given needle.
+     * \param needle The needle to look for in the given haystack.
+     * \param useWildCardSearch A flag indicating if the search should be performed in wildcard-type.
+     * \return A flag indicating whether or not the given needle was found in the given haystack.
+     */
+    static bool FindString(
+        const std::string& haystack,
+        const std::string& needle,
+        bool               useWildCardSearch = false);
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/USDSearchThread.cpp b/src/MaxUsd/Widgets/USDSearchThread.cpp
new file mode 100644
index 0000000..362fb38
--- /dev/null
+++ b/src/MaxUsd/Widgets/USDSearchThread.cpp
@@ -0,0 +1,45 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDSearchThread.h"
+
+#include "QTreeModel.h"
+
+namespace MAXUSD_NS_DEF {
+
+USDSearchThread::USDSearchThread(
+    const pxr::UsdStageRefPtr&          stage,
+    const std::string&                  searchFilter,
+    TreeModelFactory::TypeFilteringMode filterMode,
+    const std::vector<std::string>&     filteredTypeNames,
+    QObject*                            parent)
+    : QThread { parent }
+    , stage { stage }
+    , searchFilter { searchFilter }
+    , filterMode { filterMode }
+    , filteredTypeNames { filteredTypeNames }
+{
+    // Nothing to do.
+}
+
+std::unique_ptr<QTreeModel> USDSearchThread::ConsumeResults() { return std::move(results); }
+
+void USDSearchThread::run()
+{
+    results
+        = TreeModelFactory::CreateFromSearch(stage, searchFilter, filterMode, filteredTypeNames);
+}
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/Widgets/USDSearchThread.h b/src/MaxUsd/Widgets/USDSearchThread.h
new file mode 100644
index 0000000..f89f3c4
--- /dev/null
+++ b/src/MaxUsd/Widgets/USDSearchThread.h
@@ -0,0 +1,74 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "TreeModelFactory.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+
+#include <MaxUsd.h>
+#include <QtCore/QThread.h>
+
+namespace MAXUSD_NS_DEF {
+
+class QTreeModel;
+
+/**
+ * \brief Thread used to identify specific USD Prims within a provided USD Stage.
+ */
+class MaxUSDAPI USDSearchThread : public QThread
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param stage A reference to the USD Stage in which to perform the search.
+     * \param searchFilter The search filter against which to try and match USD Prims in the given USD Stage.
+     * \param filterMode The applied filter type. Include or exclude the Prim types contained in filteredTypeNames.
+     * \param filteredTypeNames The Prim types used to filter the stage.
+     * \param parent A reference to the parent of the thread.
+     */
+    explicit USDSearchThread(
+        const pxr::UsdStageRefPtr&          stage,
+        const std::string&                  searchFilter,
+        TreeModelFactory::TypeFilteringMode filterMode
+        = TreeModelFactory::TypeFilteringMode::NoFilter,
+        const std::vector<std::string>& filteredTypeNames = {},
+        QObject*                        parent = nullptr);
+
+    /**
+     * \brief Consume the QTreeModel built from the results of the search performed within the USD Stage.
+     * \return The QTreeModel built from the results of the search performed within the USD Stage.
+     */
+    std::unique_ptr<QTreeModel> ConsumeResults();
+
+protected:
+    /**
+     * \brief Perform the search in the Qt thread.
+     */
+    void run() override;
+
+protected:
+    /// Reference to the USD Stage within which to perform the search:
+    pxr::UsdStageRefPtr stage;
+    /// Search filter against which to try and match USD Prims in the USD Stage:
+    std::string searchFilter;
+    /// Reference to the QTreeModel built from the search performed within the USD Stage:
+    std::unique_ptr<QTreeModel> results;
+
+    TreeModelFactory::TypeFilteringMode filterMode;
+    std::vector<std::string>            filteredTypeNames;
+};
+
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsd/maxUsd.vcxproj b/src/MaxUsd/maxUsd.vcxproj
new file mode 100644
index 0000000..f6b499d
--- /dev/null
+++ b/src/MaxUsd/maxUsd.vcxproj
@@ -0,0 +1,306 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>MaxUsd</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{D02163F8-70EE-4676-B3EA-7C89E71B44D4}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <Distrib>0</Distrib>
+    <Distrib Condition="'$(BuildType)'=='jenkins'">1</Distrib>
+    <BuildNumber Condition="'$(BuildNumber)'==''">0</BuildNumber>
+    <ComponentVersion Condition="'$(ComponentVersion)'==''">0.0.1</ComponentVersion>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>maxUsd</TargetName>
+    <TargetExt>.dll</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>_USRDLL;MAXUSD_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(UI_DIR);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)/maxusd_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <AdditionalOptions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">/Zc:__cplusplus /Zc:inline-</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(QtLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>core.lib;geom.lib;assetmanagement.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;paramblk2.lib;MaxQtBridge.lib;FragmentGraph.lib;GraphicsDriver.lib;GraphicsUtility.lib;ViewSystem.lib;MaxGraphicsObjects.lib;mnmath.lib;Poly.lib;optimesh.lib;gup.lib;DataBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <CustomBuildStep>
+      <Command>
+      </Command>
+    </CustomBuildStep>
+    <CustomBuildStep />
+    <PreBuildEvent>
+      <Message>Update version headers</Message>
+      <Command>if $(Distrib) == 1 powershell.exe -ExecutionPolicy Unrestricted -Command "$(SolutionDir)..\build-scripts\Prepare-VersionHeaders.ps1" -SourceFolder $(SolutionDir) -BuildNumber $(BuildNumber) -ComponentVersion $(ComponentVersion)
+      </Command>
+    </PreBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying runtime files and prepare PackageContents.XML</Message>
+      <Command>robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(SolutionDir)ApplicationPlugins\usd-component\ $(TargetDir)\..\..
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PyOpenGLDir) $(TargetDir)\python-usd-tool-packages\ /XF "ARTIFACT" /XD "__pycache__" /XD PySide* /XD shiboken*
+if %errorlevel% geq 4 exit /b 1
+robocopy /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\lib\ $(TargetDir) *.dll *.pdb
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\lib\usd\ $(TargetDir)\usd\
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\lib\python\ $(TargetDir)\python\ /XD "__pycache__"
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\libraries\ $(TargetDir)\..\libraries\
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\plugin\ $(TargetDir)\..\plugin\ /XF *.lib
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\bin\ $(TargetDir) /XF *.dll *.pdb
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\bin\ $(TargetDir) hdf5*.dll
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\bin\ $(TargetDir) *-2_3.dll
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\bin\ $(TargetDir) *-2_5.dll
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(PxrUsdRoot)\bin\ $(TargetDir) MaterialX*.dll
+if %errorlevel% geq 4 exit /b 1
+if exist "$(MaterialXDir)/" (
+    robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP "$(MaterialXDir)" $(TargetDir)\..\MaterialX_plugin /XF "ARTIFACT"
+    if %errorlevel% geq 4 exit /b 1
+) else (
+    echo Warning: Missing 3ds Max MaterialX material plugin
+)
+if %errorlevel% geq 4 exit /b 1
+
+powershell.exe -ExecutionPolicy Unrestricted -Command "$(SolutionDir)..\build-scripts\Prepare-PackageContents.ps1" -TargetVersion $(VersionTarget) -Distrib $(Distrib) -Config $(Configuration) -BuildNumber $(BuildNumber) -ComponentVersion $(ComponentVersion)</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <ClCompile>
+      <!-- https://github.com/PixarAnimationStudios/USD/issues/1095 -->
+      <RemoveUnreferencedCodeData Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</RemoveUnreferencedCodeData>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="Builders\JobContextRegistry.cpp" />
+    <ClCompile Include="Builders\MaxSceneBuilder.cpp" />
+    <ClCompile Include="Builders\MaxSceneBuilderOptions.cpp" />
+    <ClCompile Include="Builders\SceneBuilderOptions.cpp" />
+    <ClCompile Include="Builders\USDSceneBuilder.cpp" />
+    <ClCompile Include="Builders\USDSceneBuilderOptions.cpp" />
+    <ClCompile Include="CameraConversion\CameraConverter.cpp" />
+    <ClCompile Include="ChannelBuilder.cpp" />
+    <ClCompile Include="Chaser\ExportChaser.cpp" />
+    <ClCompile Include="Chaser\ExportChaserRegistry.cpp" />
+    <ClCompile Include="Chaser\ImportChaser.cpp" />
+    <ClCompile Include="Chaser\ImportChaserRegistry.cpp" />
+    <ClCompile Include="CurveConversion\CurveConverter.cpp" />
+    <ClCompile Include="Interfaces\IOLoggingMxsInterface.cpp" />
+    <ClCompile Include="Interfaces\IUSDExportOptions.cpp" />
+    <ClCompile Include="Interfaces\IUSDImportOptions.cpp" />
+    <ClCompile Include="MappedAttributeBuilder.cpp" />
+    <ClCompile Include="MaterialConversion\MaterialConverter.cpp" />
+    <ClCompile Include="MeshConversion\MaxMeshConversionOptions.cpp" />
+    <ClCompile Include="MaxTokens.cpp" />
+    <ClCompile Include="Translators\AnimExportTask.cpp" />
+    <ClCompile Include="Translators\FallbackPrimReader.cpp" />
+    <ClCompile Include="Translators\FunctorPrimReader.cpp" />
+    <ClCompile Include="Translators\LastResortUSDPreviewSurfaceWriter.cpp" />
+    <ClCompile Include="Translators\PrimReader.cpp" />
+    <ClCompile Include="Translators\PrimReaderRegistry.cpp" />
+    <ClCompile Include="Translators\PrimWriterRegistry.cpp" />
+    <ClCompile Include="Translators\ReadJobContext.cpp" />
+    <ClCompile Include="Translators\PrimWriter.cpp" />
+    <ClCompile Include="Translators\ShaderReader.cpp" />
+    <ClCompile Include="Translators\ShaderReaderRegistry.cpp" />
+    <ClCompile Include="Translators\ShadingModeImporter.cpp" />
+    <ClCompile Include="Translators\TranslatorLight.cpp" />
+    <ClCompile Include="Translators\TranslatorMaterial.cpp" />
+    <ClCompile Include="Translators\RegistryHelper.cpp" />
+    <ClCompile Include="Translators\ShaderWriter.cpp" />
+    <ClCompile Include="Translators\ShaderWriterRegistry.cpp" />
+    <ClCompile Include="Translators\ShadingModeExporter.cpp" />
+    <ClCompile Include="Translators\ShadingModeExporterContext.cpp" />
+    <ClCompile Include="Translators\ShadingModeRegistry.cpp" />
+    <ClCompile Include="Translators\ShadingModeUseRegistry.cpp" />
+    <ClCompile Include="Translators\ShadingUtils.cpp" />
+    <ClCompile Include="Translators\TranslatorMorpher.cpp" />
+    <ClCompile Include="Translators\TranslatorPrim.cpp" />
+    <ClCompile Include="Translators\TranslatorSkel.cpp" />
+    <ClCompile Include="Translators\TranslatorUtils.cpp" />
+    <ClCompile Include="Translators\TranslatorXformable.cpp" />
+    <ClCompile Include="Translators\WriteJobContext.cpp" />
+    <ClCompile Include="Utilities\ListenerUtils.cpp" />
+    <ClCompile Include="Utilities\MaxRestrictedSupportUtils.cpp" />
+    <ClCompile Include="Utilities\MaxSupportUtils.cpp" />
+    <ClCompile Include="Utilities\OptionUtils.cpp" />
+    <ClCompile Include="Utilities\TimeUtils.cpp" />
+    <ClCompile Include="Utilities\UsdLinkUtils.cpp" />
+    <ClCompile Include="Utilities\VtDictionaryUtils.cpp" />
+    <ClCompile Include="Utilities\DiagnosticDelegate.cpp" />
+    <ClCompile Include="Utilities\MaterialRef.h" />
+    <ClCompile Include="Utilities\MxsUtils.cpp" />
+    <ClCompile Include="Utilities\TranslationUtils.cpp" />
+    <ClCompile Include="MeshConversion\MeshConverter.cpp" />
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="USDCore.cpp" />
+    <ClCompile Include="MeshConversion\PrimvarMappingOptions.cpp" />
+    <ClCompile Include="USDSceneController.cpp" />
+    <ClCompile Include="UsdStageSource.cpp" />
+    <ClCompile Include="Utilities\Logging.cpp" />
+    <ClCompile Include="Utilities\MaterialUtils.cpp" />
+    <ClCompile Include="Utilities\MathUtils.cpp" />
+    <ClCompile Include="Utilities\MaxProgressBar.cpp" />
+    <ClCompile Include="Utilities\MeshUtils.cpp" />
+    <ClCompile Include="Utilities\MetaDataUtils.cpp" />
+    <ClCompile Include="Utilities\PluginUtils.cpp" />
+    <ClCompile Include="Utilities\UiUtils.cpp" />
+    <ClCompile Include="MeshConversion\MeshFacade.cpp" />
+    <ClCompile Include="Utilities\UsdToolsUtils.cpp" />
+    <ClCompile Include="Widgets\ElidedLabel.cpp" />
+    <ClCompile Include="Widgets\QDiagnosticMessagesModel.cpp" />
+    <ClCompile Include="Widgets\DiagnosticMessagesModelFactory.cpp" />
+    <ClCompile Include="Widgets\QmaxUsdDoubleSpinBox.cpp" />
+    <ClCompile Include="Widgets\ResizeEventFilter.cpp" />
+    <ClCompile Include="Widgets\QSpinnerOverlayWidget.cpp" />
+    <ClCompile Include="Widgets\QSpinnerWidget.cpp" />
+    <ClCompile Include="Widgets\QTreeItem.cpp" />
+    <ClCompile Include="Widgets\QTreeModel.cpp" />
+    <ClCompile Include="Widgets\TooltipEventFilter.cpp" />
+    <ClCompile Include="Widgets\TreeModelFactory.cpp" />
+    <ClCompile Include="Widgets\USDSearchThread.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\MaxUsd.h" />
+    <ClInclude Include="..\USDComponentVersion.h" />
+    <ClInclude Include="..\USDComponentVersionNumber.h" />
+    <ClInclude Include="Builders\JobContextRegistry.h" />
+    <ClInclude Include="Builders\MaxSceneBuilder.h" />
+    <ClInclude Include="Builders\MaxSceneBuilderOptions.h" />
+    <ClInclude Include="Builders\SceneBuilderOptions.h" />
+    <ClInclude Include="Builders\USDSceneBuilder.h" />
+    <ClInclude Include="Builders\USDSceneBuilderOptions.h" />
+    <ClInclude Include="CameraConversion\CameraConverter.h" />
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new file mode 100644
index 0000000..65514b3
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+    </ClInclude>
+    <ClInclude Include="Utilities\GraphUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\ProgressReporter.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\UsdToolsUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="MeshConversion\MaxMeshConversionOptions.h">
+      <Filter>Header Files\MeshConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="MeshConversion\MeshConverter.h">
+      <Filter>Header Files\MeshConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="MeshConversion\MeshFacade.h">
+      <Filter>Header Files\MeshConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="MeshConversion\PrimvarMappingOptions.h">
+      <Filter>Header Files\MeshConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\MxsUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Builders\JobContextRegistry.h">
+      <Filter>Header Files\Builders</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\VtDictionaryUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\DiagnosticDelegate.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\PrimReader.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\ShaderReaderRegistry.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\ReadJobContext.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\ShaderReader.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\FunctorPrimReader.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\TimeUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Widgets\TooltipEventFilter.h">
+      <Filter>Header Files\Widgets</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\AnimExportTask.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\ShadingModeImporter.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\FunctorPrimReader.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\PrimReaderRegistry.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorXformable.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorPrim.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorLight.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\ListenerUtils.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\MaxRestrictedSupportUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorUtils.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorSkel.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Chaser\ImportChaser.h">
+      <Filter>Header Files\Chaser</Filter>
+    </ClInclude>
+    <ClInclude Include="Chaser\ImportChaserRegistry.h">
+      <Filter>Header Files\Chaser</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\TranslatorMorpher.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\UsdLinkUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="MaterialConversion\MaterialConverter.h">
+      <Filter>Header Files\MaterialConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="CameraConversion\CameraConverter.h">
+      <Filter>Header Files\CameraConversion</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\LastResortUSDPreviewSurfaceWriter.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="Translators\FallbackPrimReader.h">
+      <Filter>Header Files\Translators</Filter>
+    </ClInclude>
+    <ClInclude Include="maxusd_banned.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\DictionaryOptionProvider.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="Utilities\OptionUtils.h">
+      <Filter>Header Files\Utilities</Filter>
+    </ClInclude>
+    <ClInclude Include="CurveConversion\CurveConverter.h">
+      <Filter>Header Files\CurveConversion</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{dd8c0df5-1594-4401-b1e4-531318d222f4}</UniqueIdentifier>
+      <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+    <Filter Include="Header Files\Widgets">
+      <UniqueIdentifier>{e80d0938-fe5c-4496-b88f-3b2e7283daf8}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Widgets">
+      <UniqueIdentifier>{5b69a3dd-b5ff-403f-b685-4dbfb8fc5c7f}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Translators">
+      <UniqueIdentifier>{12147285-f96f-4bc2-9e21-59e02d9d53f7}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Translators">
+      <UniqueIdentifier>{d6d112c1-7056-45a5-9a27-d21e45fe5677}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Utilities">
+      <UniqueIdentifier>{5ec25a34-34fd-451f-a2f4-a7e3da17b3e9}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Utilities">
+      <UniqueIdentifier>{c8a35927-d207-4979-b4e9-85c270da95c7}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Statistics">
+      <UniqueIdentifier>{16afde41-a083-404b-a1b5-b2a6daa71f5d}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Builders">
+      <UniqueIdentifier>{3b96c177-8409-40bd-bb00-aed61f6380a6}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Builders">
+      <UniqueIdentifier>{61b85154-7c32-4d40-9403-82c528790a07}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Interfaces">
+      <UniqueIdentifier>{970eb135-3643-43f5-a488-313211a7ca27}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Interfaces">
+      <UniqueIdentifier>{abd61841-8e78-4847-8e9c-4609b91321fd}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Chaser">
+      <UniqueIdentifier>{080c9d64-6463-47f2-8e10-cd5e74dcba7e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Chaser">
+      <UniqueIdentifier>{a56290e5-4e77-4dfe-8d56-3a946b65bd19}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\MeshConversion">
+      <UniqueIdentifier>{3d99c708-c8f1-4986-8f3f-7053868950dc}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\MeshConversion">
+      <UniqueIdentifier>{c96e8edd-a58d-4c08-98df-f2d38b7a0add}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\MaterialConversion">
+      <UniqueIdentifier>{01aefcfc-3126-4745-b0eb-ed3b4bbb2d8f}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\MaterialConversion">
+      <UniqueIdentifier>{d7ebbd2e-27f5-4617-b8da-f5ab6d93b6cb}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\CameraConversion">
+      <UniqueIdentifier>{4a6e1f44-4715-42cc-b1d6-405ada06f935}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\CameraConversion">
+      <UniqueIdentifier>{9272104a-abe5-47eb-9582-4171d061c63e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\CurveConversion">
+      <UniqueIdentifier>{b4e92579-18e6-4481-ae3d-e097b779f612}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\CurveConversion">
+      <UniqueIdentifier>{07bf7a3a-5361-4ad2-92dc-8f86ca898e74}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="Widgets\ElidedLabel.h">
+      <Filter>Header Files\Widgets</Filter>
+    </QtMoc>
+    <QtMoc Include="Widgets\QmaxUsdDoubleSpinBox.h">
+      <Filter>Header Files\Widgets</Filter>
+    </QtMoc>
+    <QtMoc Include="Widgets\ElidedLabel.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/MaxUsd/maxusd_banned.h b/src/MaxUsd/maxusd_banned.h
new file mode 100644
index 0000000..0da2f34
--- /dev/null
+++ b/src/MaxUsd/maxusd_banned.h
@@ -0,0 +1,27 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Bring base_type type from boost, conflicting with Max base_type macro
+#include <pxr/base/tf/notice.h>
+
+#include <usd_banned.h>
+
+// After to avoid some errors from naming conflicts.
+#pragma warning(push)
+#pragma warning(disable : 4244)
+#include <QtGui/qmatrix4x4.h>
+#pragma warning(pop)
\ No newline at end of file
diff --git a/src/MaxUsd/resource.h b/src/MaxUsd/resource.h
new file mode 100644
index 0000000..4166e4d
--- /dev/null
+++ b/src/MaxUsd/resource.h
@@ -0,0 +1,47 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by resource.rc
+//
+#define IDS_LIBDESCRIPTION                      1
+#define IDS_CATEGORY                            2
+#define IDS_IMPORT_PROGRESS_MESSAGE             3
+#define IDS_IMPORT_CANCEL_CAPTION               4
+#define IDS_IMPORT_CANCEL_TEXT                  5
+#define IDS_IMPORT_CHASERS_PROGRESS_MESSAGE     6
+#define IDS_EXPORT_PROGRESS_TITLE               7
+#define IDS_EXPORT_PREPARING_EXPORT             8
+#define IDS_EXPORT_OBJECTS_PROGRESS_MESSAGE     9
+#define IDS_EXPORT_FRAMES_PROGRESS_MESSAGE      10
+#define IDS_EXPORT_TRANSFORMS_PROGRESS_MESSAGE  11
+#define IDS_EXPORT_MATERIALS_PROGRESS_MESSAGE   12
+#define IDS_EXPORT_CHASERS_PROGRESS_MESSAGE     13
+#define IDS_EXPORT_PROGRESS_COMPLETED_MESSAGE   14
+#define IDS_EXPORT_CANCEL_CAPTION               15
+#define IDS_EXPORT_CANCEL_TEXT                  16
+#define IDS_EXPORT_POST_EXPORT_PROGRESS_MESSAGE 17
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE 102
+#define _APS_NEXT_COMMAND_VALUE  40001
+#define _APS_NEXT_CONTROL_VALUE  1001
+#define _APS_NEXT_SYMED_VALUE    101
+#endif
+#endif
diff --git a/src/MaxUsd/resource.rc b/src/MaxUsd/resource.rc
new file mode 100644
index 0000000..9d0cf2a
--- /dev/null
+++ b/src/MaxUsd/resource.rc
@@ -0,0 +1,96 @@
+// Microsoft Visual C++ generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// String Table
+//
+
+STRINGTABLE
+BEGIN
+    IDS_LIBDESCRIPTION      "USD interoperability for 3ds Max"
+    IDS_CATEGORY            "USD"
+    IDS_IMPORT_PROGRESS_MESSAGE "Importing file..."
+    IDS_IMPORT_CANCEL_CAPTION "Cancel import"
+    IDS_IMPORT_CANCEL_TEXT  "Are you sure you want to cancel the file import?" 
+    IDS_IMPORT_CHASERS_PROGRESS_MESSAGE "Running chasers..."
+    IDS_EXPORT_PROGRESS_TITLE "USD Export"
+    IDS_EXPORT_OBJECTS_PROGRESS_MESSAGE "Objects..."
+    IDS_EXPORT_FRAMES_PROGRESS_MESSAGE "Frames..."
+    IDS_EXPORT_TRANSFORMS_PROGRESS_MESSAGE "Transforms..."
+    IDS_EXPORT_MATERIALS_PROGRESS_MESSAGE "Materials..."
+    IDS_EXPORT_CHASERS_PROGRESS_MESSAGE "Running chasers..."
+    IDS_EXPORT_PROGRESS_COMPLETED_MESSAGE "Completed."
+    IDS_EXPORT_PREPARING_EXPORT "Preparing export..."
+    IDS_EXPORT_CANCEL_CAPTION "Cancel export"
+    IDS_EXPORT_CANCEL_TEXT  "Are you sure you want to cancel the file export?"
+END
+
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (Canada) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENC)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_CAN
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE 
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (Canada) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+#include "VersionOverrides.h"
+#include "../USDComponentVersion.r"
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/src/MaxUsdObjects/ClassDescs.cpp b/src/MaxUsdObjects/ClassDescs.cpp
new file mode 100644
index 0000000..10fadee
--- /dev/null
+++ b/src/MaxUsdObjects/ClassDescs.cpp
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ClassDescs.h"
+
+#include "Objects/USDAttrControllerClassDescs.h"
+#include "Objects/USDSnaps.h"
+#include "Objects/USDStageObjectclassDesc.h"
+#include "Objects/USDTransformControllersClassDesc.h"
+#include "Objects/UsdCameraObjectClassDesc.h"
+
+#include <utility>
+
+std::vector<ClassDesc2*> allClasses;
+
+namespace {
+
+std::once_flag f;
+void           CreateClassList()
+{
+    std::vector<ClassDesc2*> classDescs;
+    classDescs.push_back(GetUSDStageObjectClassDesc());
+    classDescs.push_back(GetUSDCameraObjectClassDesc());
+    classDescs.push_back(GetUSDXformableControllerClassDesc());
+    classDescs.push_back(GetUSDPositionControllerClassDesc());
+    classDescs.push_back(GetUSDScaleControllerClassDesc());
+    classDescs.push_back(GetUSDRotationControllerClassDesc());
+    classDescs.push_back(GetUSDFloatControllerClassDesc());
+    classDescs.push_back(GetUSDPoint3ControllerClassDesc());
+    classDescs.push_back(GetUSDPoint4ControllerClassDesc());
+    classDescs.push_back(GetUSDSnapsClassDesc());
+    allClasses = std::move(classDescs);
+}
+
+} // namespace
+
+int GetNumClassDesc()
+{
+    std::call_once(f, CreateClassList);
+    return int(allClasses.size());
+}
+
+ClassDesc2* GetClassDesc(int i)
+{
+    std::call_once(f, CreateClassList);
+    return allClasses[i];
+}
diff --git a/src/MaxUsdObjects/ClassDescs.h b/src/MaxUsdObjects/ClassDescs.h
new file mode 100644
index 0000000..bd11f2a
--- /dev/null
+++ b/src/MaxUsdObjects/ClassDescs.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <iparamb2.h>
+
+int         GetNumClassDesc();
+ClassDesc2* GetClassDesc(int i);
diff --git a/src/MaxUsdObjects/DLLEntry.h b/src/MaxUsdObjects/DLLEntry.h
new file mode 100644
index 0000000..1255451
--- /dev/null
+++ b/src/MaxUsdObjects/DLLEntry.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <strbasic.h>
+
+extern MCHAR*    GetString(int id);
+extern HINSTANCE hInstance;
diff --git a/src/MaxUsdObjects/DllEntry.cpp b/src/MaxUsdObjects/DllEntry.cpp
new file mode 100644
index 0000000..2f01351
--- /dev/null
+++ b/src/MaxUsdObjects/DllEntry.cpp
@@ -0,0 +1,96 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+#include "ClassDescs.h"
+#include "MaxUsdUfe/UfeUtils.h"
+#include "resource.h"
+
+#include <pxr/base/plug/registry.h>
+
+#include <iparamb2.h>
+#include <iparamm2.h>
+
+HINSTANCE hInstance;
+int       controlsInit = FALSE;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        MaxSDK::Util::UseLanguagePackLocale();
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+        // DO NOT do any initialization here. Use LibInitialize() instead.
+    }
+    return (TRUE);
+}
+
+// This function returns a string that describes the DLL
+__declspec(dllexport) const MCHAR* LibDescription() { return GetString(IDS_LIBDESCRIPTION); }
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) int LibNumberClasses() { return GetNumClassDesc(); }
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) ClassDesc* LibClassDesc(int i)
+{
+    if (i < GetNumClassDesc()) {
+        return GetClassDesc(i);
+    }
+
+    return nullptr;
+}
+
+// This function returns a pre-defined constant indicating the version of
+// the system under which it was compiled.  It is used to allow the system
+// to catch obsolete DLLs.
+__declspec(dllexport) ULONG LibVersion() { return VERSION_3DSMAX; }
+
+// This function is called once, right after your plugin has been loaded by 3ds Max.
+// Perform one-time plugin initialization in this method.
+// Return TRUE if you deem your plugin successfully loaded, or FALSE otherwise. If
+// the function returns FALSE, the system will NOT load the plugin, it will then call FreeLibrary
+// on your DLL, and send you a message.
+__declspec(dllexport) int LibInitialize(void)
+{
+    MaxUsd::ufe::initialize();
+    return TRUE;
+}
+
+// This function is called once, just before the plugin is unloaded.
+// Perform one-time plugin un-initialization in this method."
+// The system doesn't pay attention to a return value.
+__declspec(dllexport) int LibShutdown(void)
+{
+    MaxUsd::ufe::finalize();
+    return TRUE;
+}
+
+MCHAR* GetString(int id)
+{
+    static MCHAR buf[256];
+
+    if (hInstance)
+        return LoadStringW(hInstance, id, buf, _countof(buf)) ? buf : NULL;
+    return NULL;
+}
diff --git a/src/MaxUsdObjects/Icons/branch_closed.png b/src/MaxUsdObjects/Icons/branch_closed.png
new file mode 100644
index 0000000..67daa7b
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/branch_closed.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7fd801264d0ebfa77545604ceda2b40020f8337919495a67189e6dbe90017a0a
+size 972
diff --git a/src/MaxUsdObjects/Icons/branch_opened.png b/src/MaxUsdObjects/Icons/branch_opened.png
new file mode 100644
index 0000000..3b4223d
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/branch_opened.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ef62d90a2cb4cd55a56ee993bf8354757e729c397788a3505162fc65fd36732d
+size 1075
diff --git a/src/MaxUsdObjects/Icons/hidden.png b/src/MaxUsdObjects/Icons/hidden.png
new file mode 100644
index 0000000..634564a
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/hidden.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:014dba9e9fde4a3a9400ab3fe01376677390963d051adc8a50a1cdf7e0df832c
+size 1111
diff --git a/src/MaxUsdObjects/Icons/hiddenInherit.png b/src/MaxUsdObjects/Icons/hiddenInherit.png
new file mode 100644
index 0000000..0219f75
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/hiddenInherit.png
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+version https://git-lfs.github.com/spec/v1
+oid sha256:9aa3a91d93e0089da3918970276dba3a175b0a3f5b5c93e870e2ae674e66e2a3
+size 1336
diff --git a/src/MaxUsdObjects/Icons/visible.png b/src/MaxUsdObjects/Icons/visible.png
new file mode 100644
index 0000000..a5e8cda
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/visible.png
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+version https://git-lfs.github.com/spec/v1
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+size 1065
diff --git a/src/MaxUsdObjects/Icons/visibleInherit.png b/src/MaxUsdObjects/Icons/visibleInherit.png
new file mode 100644
index 0000000..bac01d4
--- /dev/null
+++ b/src/MaxUsdObjects/Icons/visibleInherit.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 1355
diff --git a/src/MaxUsdObjects/MaxUsdObjects.def b/src/MaxUsdObjects/MaxUsdObjects.def
new file mode 100644
index 0000000..a333e5f
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdObjects.def
@@ -0,0 +1,11 @@
+LIBRARY MaxUsdObjects.dlo
+EXPORTS
+   LibDescription       @1       PRIVATE
+   LibNumberClasses     @2       PRIVATE
+   LibClassDesc         @3       PRIVATE
+   LibVersion           @4       PRIVATE
+   LibInitialize        @6       PRIVATE
+   LibShutdown          @7       PRIVATE
+   CanAutoDefer         @8       PRIVATE
+SECTIONS
+   .data READ WRITE
diff --git a/src/MaxUsdObjects/MaxUsdObjects.vcxproj b/src/MaxUsdObjects/MaxUsdObjects.vcxproj
new file mode 100644
index 0000000..5cac3bf
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdObjects.vcxproj
@@ -0,0 +1,195 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>MaxUsdObjects</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+    <Import Project="$(SolutionDir)\UFE.props" />
+    <Import Project="$(SolutionDir)\USDUFE.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest>true</EmbedManifest>
+    <TargetName>MaxUsdObjects</TargetName>
+    <TargetExt>.dlo</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions Condition="'$(VersionTarget)'&gt;'2024'">UFE_CLIPBOARD_SUPPORT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>MAXUSDOBJECTS_EXPORTS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(UfeInc);$(UfeUsdInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)maxusdobjects_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(UfeLib);$(UfeUsdLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <ModuleDefinitionFile>$(TargetName).def</ModuleDefinitionFile>
+      <AdditionalDependencies>maxutil.lib;FragmentGraph.lib;GraphicsDriver.lib;GraphicsUtility.lib;ViewSystem.lib;MaxGraphicsObjects.lib;core.lib;geom.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;paramblk2.lib;MaxQtBridge.lib;mnmath.lib;Poly.lib;optimesh.lib;gup.lib;DataBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <PreBuildEvent>
+      <Command>if exist "$(ProjectDir)Icons\UfeRt" rmdir "$(ProjectDir)Icons\UfeRt"
+mklink /j "$(ProjectDir)Icons\UfeRt" "$(UsdUfeLib)\icons"</Command>
+    </PreBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying UFE/USDUFE runtime files</Message>
+      <Command>robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(UfeLib)\..\bin\ $(TargetDir) ufe*.dll ufe*.pdb
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(UfeLib)\..\Python\Lib\site-packages\ufe $(TargetDir)\python\ufe /XF *.lib
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(UsdUfeLib) $(TargetDir) *.dll *.pdb
+if %errorlevel% geq 4 exit /b 1
+robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(UsdUfeLib)\python\ $(TargetDir)\python\ /XD "__pycache__" /XF *.lib
+if %errorlevel% geq 4 exit /b 1
+exit /b 0</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="ClassDescs.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdHierarchyHandler.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdRootChildHierarchy.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUfeUndoableCmdMgr.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdObject3d.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdObject3dHandler.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdContextOps.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdContextOpsHandler.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdStagesSubject.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdUndoMakeVisibleCommand.cpp" />
+    <ClCompile Include="MaxUsdUfe\QmaxUsdUfeAttributesWidget.cpp" />
+    <ClCompile Include="MaxUsdUfe\StageObjectMap.cpp" />
+    <ClCompile Include="MaxUsdUfe\UfeUtils.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdUIInfoHandler.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdUndoVisibleCommand.cpp" />
+    <ClCompile Include="MaxUsdUfe\MaxUsdEditCommand.cpp" />
+    <ClCompile Include="MaxUsdUfe\UsdTreeColumns.cpp" />
+    <ClCompile Include="DllEntry.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="ClassDescs.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUfeUndoableCommandMgr.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdHierarchyHandler.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdRootChildHierarchy.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdObject3d.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdObject3dHandler.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdContextOps.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdContextOpsHandler.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdStagesSubject.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdUndoMakeVisibleCommand.h" />
+    <QtMoc Include="MaxUsdUfe\QmaxUsdUfeAttributesWidget.h" />
+    <ClInclude Include="MaxUsdUfe\StageObjectMap.h" />
+    <ClInclude Include="MaxUsdUfe\UfeUtils.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdUIInfoHandler.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdEditCommand.h" />
+    <ClInclude Include="MaxUsdUfe\UsdTreeColumns.h" />
+    <ClInclude Include="MaxUsdUfe\MaxUsdUndoVisibleCommand.h" />
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="Objects\USDBaseController.h" />
+    <ClInclude Include="Objects\USDCameraObject.h" />
+    <ClInclude Include="Objects\USDCameraObjectClassDesc.h" />
+    <ClInclude Include="Objects\USDAttrControllers.h" />
+    <ClInclude Include="Objects\USDAttrControllerClassDescs.h" />
+    <ClInclude Include="Objects\USDTransformControllers.h" />
+    <ClInclude Include="Objects\USDTransformControllersClassDesc.h" />
+    <ClInclude Include="Objects\SubobjectManips.h" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="USDExplorer.h" />
+    <ClInclude Include="maxusdobjects_banned.h" />
+    <ClInclude Include="Objects\USDSnaps.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="MaxUsdObjects.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\UFEUI\UFEUI.vcxproj">
+      <Project>{0e1a6b42-080b-475c-8f53-613c47a99c81}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\RenderDelegate\RenderDelegate.vcxproj">
+      <Project>{7b707dd2-355b-4232-89e8-f92a821b71b3}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Objects\USDStageObject.h" />
+    <ClInclude Include="Objects\USDStageObjectclassDesc.h" />
+    <ClInclude Include="USDPickingRenderer.h" />
+    <ClCompile Include="Objects\USDBaseController.cpp" />
+    <ClCompile Include="Objects\USDCameraObject.cpp" />
+    <ClCompile Include="Objects\USDCameraObjectClassDesc.cpp" />
+    <ClCompile Include="Objects\USDAttrControllers.cpp" />
+    <ClCompile Include="Objects\USDAttrControllerClassDescs.cpp" />
+    <ClCompile Include="Objects\USDTransformControllers.cpp" />
+    <ClCompile Include="Objects\USDTransformControllersClassDesc.cpp" />
+    <ClInclude Include="USDAssetAccessor.h" />
+    <ClInclude Include="MaxUsdObjectsAPI.h" />
+    <ClInclude Include="Objects\USDStageObjectIcon.h" />
+    <ClInclude Include="Objects\CreateCallbacks\CreateAtPosition.h" />
+    <QtMoc Include="Views\UsdStageNodeParametersRollup.h" />
+    <QtMoc Include="Views\UsdStageNodePrimSelectionDialog.h" />
+    <QtMoc Include="Views\UsdStageViewportDisplayRollup.h" />
+    <QtMoc Include="Views\UsdStageViewportPerformanceRollup.h" />
+    <QtMoc Include="Views\UsdStageRenderSettingsRollup.h" />
+    <QtMoc Include="Views\UsdStageNodeAnimationRollup.h" />
+    <QtMoc Include="Views\UsdStageViewportSelectionRollup.h" />
+    <QtMoc Include="Views\UsdControllerWidget.h" />
+    <QtMoc Include="Views\UsdCameraObjectRollup.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="Objects\USDStageObject.cpp" />
+    <ClCompile Include="Objects\USDStageObjectclassDesc.cpp" />
+    <ClCompile Include="Objects\SubobjectManips.cpp" />
+    <ClCompile Include="USDExplorer.cpp" />
+    <ClCompile Include="USDPickingRenderer.cpp" />
+    <ClCompile Include="USDAssetAccessor.cpp" />
+    <ClCompile Include="Objects\USDSnaps.cpp" />
+    <ClCompile Include="Views\UsdCameraObjectRollup.cpp" />
+    <ClCompile Include="Views\UsdStageNodeAnimationRollup.cpp" />
+    <ClCompile Include="Views\UsdStageNodeParametersRollup.cpp" />
+    <ClCompile Include="Views\UsdStageNodePrimSelectionDialog.cpp" />
+    <ClCompile Include="Views\UsdStageViewportDisplayRollup.cpp" />
+    <ClCompile Include="Views\UsdStageViewportPerformanceRollup.cpp" />
+    <ClCompile Include="Views\UsdStageRenderSettingsRollup.cpp" />
+    <ClCompile Include="Views\UsdStageViewportSelectionRollup.cpp" />
+    <ClCompile Include="Views\UsdControllerWidget.cpp" />
+    <ClCompile Include="Objects\CreateCallbacks\CreateAtPosition.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\UsdCameraObjectRollup.ui" />
+    <QtUic Include="Views\UsdControllerWidget.ui" />
+    <QtUic Include="Views\UsdStageNodeAnimationRollup.ui" />
+    <QtUic Include="Views\UsdStageNodeParametersRollup.ui" />
+    <QtUic Include="Views\UsdStageNodePrimSelectionDialog.ui" />
+    <QtUic Include="Views\UsdStageRenderSettingsRollup.ui" />
+    <QtUic Include="Views\UsdStageViewportDisplayRollup.ui" />
+    <QtUic Include="Views\UsdStageViewportPerformanceRollup.ui" />
+    <QtUic Include="Views\UsdStageViewportSelectionRollup.ui" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtRcc Include="resource.qrc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
diff --git a/src/MaxUsdObjects/MaxUsdObjects.vcxproj.filters b/src/MaxUsdObjects/MaxUsdObjects.vcxproj.filters
new file mode 100644
index 0000000..e740c2f
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdObjects.vcxproj.filters
@@ -0,0 +1,365 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
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+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{ad6e765e-4300-41dc-b185-05b019286785}</UniqueIdentifier>
+      <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+    <Filter Include="Generated Files">
+      <UniqueIdentifier>{71ED8ED8-ACB9-4CE9-BBE1-E00B30144E11}</UniqueIdentifier>
+      <Extensions>moc;h;cpp</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{99349809-55BA-4b9d-BF79-8FDBB0286EB3}</UniqueIdentifier>
+      <Extensions>ui</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Source Files\Views">
+      <UniqueIdentifier>{048c7b60-937a-493e-b975-e9dfbff7d23b}</UniqueIdentifier>
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+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="USDPickingRenderer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="USDAssetAccessor.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdObjectsAPI.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDStageObjectIcon.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDStageObjectclassDesc.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDStageObject.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDTransformControllers.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDTransformControllersClassDesc.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\CreateCallbacks\CreateAtPosition.h">
+      <Filter>Header Files\Objects\CreateCallbacks</Filter>
+    </ClInclude>
+    <ClInclude Include="USDExplorer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\UfeUtils.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\StageObjectMap.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdStagesSubject.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdUIInfoHandler.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdUndoVisibleCommand.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdContextOpsHandler.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdContextOps.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdUndoMakeVisibleCommand.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdObject3d.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdObject3dHandler.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdEditCommand.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdHierarchyHandler.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUsdRootChildHierarchy.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\UsdTreeColumns.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDCameraObject.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDCameraObjectClassDesc.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDBaseController.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDAttrControllerClassDescs.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDAttrControllers.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="Objects\USDSnaps.h">
+      <Filter>Header Files\Objects</Filter>
+    </ClInclude>
+    <ClInclude Include="SubobjectManips.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxUsdUfe\MaxUfeUndoableCommandMgr.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="MaxUsdObjects.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="Views\UsdStageNodeParametersRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageNodePrimSelectionDialog.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageViewportDisplayRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageViewportPerformanceRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageNodeAnimationRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageRenderSettingsRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdControllerWidget.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdStageViewportSelectionRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdCameraObjectRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="MaxUsdUfe\QmaxUsdUfeAttributesWidget.h">
+      <Filter>Header Files\MaxUsdUfe</Filter>
+    </QtMoc>
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\UsdStageNodePrimSelectionDialog.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageViewportDisplayRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageViewportPerformanceRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageRenderSettingsRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageNodeAnimationRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageNodeParametersRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdStageViewportSelectionRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdCameraObjectRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdControllerWidget.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+  </ItemGroup>
+  <ItemGroup>
+    <QtRcc Include="resource.qrc">
+      <Filter>Form Files</Filter>
+    </QtRcc>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdObjectsAPI.h b/src/MaxUsdObjects/MaxUsdObjectsAPI.h
new file mode 100644
index 0000000..6fb48d1
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdObjectsAPI.h
@@ -0,0 +1,22 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#ifdef MAXUSDOBJECTS_EXPORTS
+#define MaxUSDObjectsAPI __declspec(dllexport)
+#else
+#define MaxUSDObjectsAPI __declspec(dllimport)
+#endif
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCmdMgr.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCmdMgr.cpp
new file mode 100644
index 0000000..7e774b3
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCmdMgr.cpp
@@ -0,0 +1,98 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUfeUndoableCommandMgr.h"
+
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <hold.h>
+
+/**
+ * \brief A 3dsMax restore object, holding on to a UFE undoable command.
+ * The undo/redo operations are handled entirely in the UFE command.
+ */
+class UfeRestoreObj : public RestoreObj
+{
+public:
+    UfeRestoreObj(const Ufe::UndoableCommand::Ptr& cmd)
+        : ufeCmd(cmd)
+    {
+    }
+
+    void Restore(int isUndo) override { ufeCmd->undo(); }
+    void Redo() override { ufeCmd->redo(); }
+    int  Size() override { return sizeof(Ufe::UndoableCommand::Ptr); }
+    TSTR Description() override { return TSTR(_T("UFE Undoable command.")); }
+
+private:
+    //! The undoable UFE command.
+    Ufe::UndoableCommand::Ptr ufeCmd;
+};
+
+MaxUfeUndoableCommandMgr::~MaxUfeUndoableCommandMgr() { }
+
+void MaxUfeUndoableCommandMgr::executeCmd(const Ufe::UndoableCommand::Ptr& cmd) const
+{
+    auto execute = [this, &cmd]() {
+        const auto del
+            = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::ListenerDelegate>();
+        UndoableCommandMgr::executeCmd(cmd);
+    };
+
+    // Insert the UFE command in the 3dsMax undo stack.
+    if (!theHold.Holding()) {
+        theHold.Begin();
+        theHold.Put(new UfeRestoreObj(cmd));
+        execute();
+        theHold.Accept(TSTR::FromUTF8(cmd->commandString().c_str()));
+    } else {
+        if (!theHold.IsSuspended()) {
+            theHold.Put(new UfeRestoreObj(cmd));
+        }
+        execute();
+    }
+}
+
+/** Small helper class to override the command string of an Ufe undoable
+ * command. 3dsMax, e.g. expects undoable commands to provide non-empty command
+ * names to populate the undo history in the UI. As some commands don't provide
+ * that, this class can be used to override the command name.
+ * \see MaxUfeUndoableCommandMgr::named */
+class NameOverrideUndoableCommand : public Ufe::UndoableCommand
+{
+public:
+    NameOverrideUndoableCommand(const Ufe::UndoableCommand::Ptr& cmd, const std::string& name)
+        : _cmd(cmd)
+        , _name(name)
+    {
+    }
+
+    void undo() override { _cmd->undo(); }
+    void redo() override { _cmd->redo(); }
+    void execute() override { _cmd->execute(); }
+
+    std::string commandString() const override { return _name; }
+
+private:
+    Ufe::UndoableCommand::Ptr _cmd;
+    std::string               _name;
+};
+
+Ufe::UndoableCommand::Ptr
+MaxUfeUndoableCommandMgr::named(const Ufe::UndoableCommand::Ptr& cmd, const std::string& name)
+{
+    return std::make_shared<NameOverrideUndoableCommand>(cmd, name);
+}
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCommandMgr.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCommandMgr.h
new file mode 100644
index 0000000..e8ade15
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCommandMgr.h
@@ -0,0 +1,41 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <ufe/undoableCommandMgr.h>
+
+class MaxUfeUndoableCommandMgr : public Ufe::UndoableCommandMgr
+{
+public:
+    MaxUfeUndoableCommandMgr() = default;
+
+    MaxUfeUndoableCommandMgr(const UndoableCommandMgr&) = delete;
+    MaxUfeUndoableCommandMgr& operator=(const UndoableCommandMgr&) = delete;
+    MaxUfeUndoableCommandMgr(MaxUfeUndoableCommandMgr&&) = delete;
+    MaxUfeUndoableCommandMgr& operator=(MaxUfeUndoableCommandMgr&&) = delete;
+
+    ~MaxUfeUndoableCommandMgr() override;
+
+    void executeCmd(const Ufe::UndoableCommand::Ptr& cmd) const override;
+
+    /** Helper function to override the command string of an Ufe undoable
+     * command. 3dsMax, e.g. expects undoable commands to provide non-empty
+     * command names to populate the undo history in the UI. As some commands
+     * don't provide that, this function can be used to override the command
+     * name. */
+    static Ufe::UndoableCommand::Ptr
+    named(const Ufe::UndoableCommand::Ptr& cmd, const std::string& name);
+};
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.cpp
new file mode 100644
index 0000000..8e61144
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.cpp
@@ -0,0 +1,134 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdContextOps.h"
+
+#include <usdUfe/ufe/Global.h>
+#include <usdUfe/ufe/UsdSceneItem.h>
+
+#include <ufe/globalSelection.h>
+#include <ufe/observableSelection.h>
+#include <ufe/undoableCommand.h>
+
+#include <MaxUsd.h>
+#include <vector>
+
+// Using QT to access the clipboard.
+#include "MaxUsdObject3d.h"
+
+#include <QtGui/QClipboard>
+#include <QtWidgets/QApplication>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+static constexpr char USDToggleVisibilityItem[] = "Toggle Visibility";
+static constexpr char USDCopyPrimPathItem[] = "Copy Prim Path";
+static constexpr char USDCopyPrimPathLabel[] = "Copy Prim Path";
+static constexpr char USDSetAsDefaultPrim[] = "Set as Default Prim";
+static constexpr char USDClearDefaultPrim[] = "Clear Default Prim";
+
+MaxUsdContextOps::MaxUsdContextOps(const UsdUfe::UsdSceneItem::Ptr& item)
+    : UsdUfe::UsdContextOps(item)
+{
+    // Adjust bulk items for 3dsMax. Only support bulk editing on the same stage.
+    for (const auto& bulkItem : _bulkItems) {
+        if (bulkItem->path().popSegment() == item->path().popSegment()) {
+            continue;
+        }
+        _bulkItems.remove(bulkItem);
+    }
+    // Clear bulk items if we under up with just one, not a bulk edit anymore.
+    if (_bulkItems.size() == 1) {
+        _bulkItems.clear();
+        _bulkType.clear();
+    }
+}
+
+MaxUsdContextOps::~MaxUsdContextOps() { }
+
+/*static*/
+MaxUsdContextOps::Ptr MaxUsdContextOps::create(const UsdUfe::UsdSceneItem::Ptr& item)
+{
+    return std::make_shared<MaxUsdContextOps>(item);
+}
+
+Ufe::ContextOps::Items MaxUsdContextOps::getItems(const ItemPath& itemPath) const
+{
+    if (isBulkEdit()) {
+        return getBulkItems(itemPath);
+    }
+
+    auto items = UsdContextOps::getItems(itemPath);
+
+    // Temporarily remove the context ops related to the default prim. Indeed, setting
+    // and clearing the default prim can only happen on the root layer, but we currently
+    // always target the session layer.
+    auto removeOp = [&items](const std::string& name) {
+        const auto it
+            = std::find_if(items.begin(), items.end(), [&name](const Ufe::ContextItem& ci) {
+                  return ci.item == name;
+              });
+        if (it != items.end()) {
+            items.erase(it);
+        }
+    };
+    removeOp(USDSetAsDefaultPrim);
+    removeOp(USDClearDefaultPrim);
+
+    // only add copy prim path to the root menu context option
+    if (itemPath.empty()) {
+        // 3dsMax specific context op : copy prim path.
+        items.insert(items.begin(), { USDCopyPrimPathItem, USDCopyPrimPathLabel });
+    }
+
+    return items;
+}
+
+Ufe::UndoableCommand::Ptr MaxUsdContextOps::doOpCmd(const ItemPath& itemPath)
+{
+    if (itemPath[0] == USDCopyPrimPathItem) {
+        // Adding the prim path to the clipboard is not an undoable command, just do it right away.
+        QApplication::clipboard()->setText(QString::fromStdString(prim().GetPath().GetString()));
+        return nullptr;
+    }
+
+    // Override the base behavior for toggling of visibility.
+    // We reimplemented Object3d::setVisibility() to only author the prim's attribute
+    // instead of using make visible/make invisible. But we also created a new command
+    // to make actually make visible, which we trigger from the contextOps. We call
+    // it here.
+    if (itemPath[0] == USDToggleVisibilityItem) {
+        const auto object3d = MaxUsdObject3d::create(_item);
+        if (!object3d) {
+            return nullptr;
+        }
+        // Don't use UsdObject3d::visibility() - it looks at the authored visibility
+        // attribute. Instead, compute the effective visibility, which is what we want
+        // to toggle.
+        const auto imageable = pxr::UsdGeomImageable(prim());
+        const auto current = imageable.ComputeVisibility() != pxr::UsdGeomTokens->invisible;
+        return object3d->makeVisibleCmd(!current);
+    }
+
+    // Call into base implementation.
+    if (auto cmd = UsdUfe::UsdContextOps::doOpCmd(itemPath)) {
+        return cmd;
+    }
+    return nullptr;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.h
new file mode 100644
index 0000000..e1df8dd
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOps.h
@@ -0,0 +1,48 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/UsdContextOps.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+class MaxUsdContextOps : public UsdUfe::UsdContextOps
+{
+public:
+    typedef std::shared_ptr<MaxUsdContextOps> Ptr;
+
+    MaxUsdContextOps(const UsdUfe::UsdSceneItem::Ptr& item);
+    ~MaxUsdContextOps() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdContextOps(const MaxUsdContextOps&) = delete;
+    MaxUsdContextOps& operator=(const MaxUsdContextOps&) = delete;
+    MaxUsdContextOps(MaxUsdContextOps&&) = delete;
+    MaxUsdContextOps& operator=(MaxUsdContextOps&&) = delete;
+
+    //! Create a MaxUsdContextOps.
+    static MaxUsdContextOps::Ptr create(const UsdUfe::UsdSceneItem::Ptr& item);
+
+    Items                     getItems(const ItemPath& itemPath) const override;
+    Ufe::UndoableCommand::Ptr doOpCmd(const ItemPath& itemPath) override;
+
+}; // MaxUsdContextOps
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.cpp
new file mode 100644
index 0000000..6053cab
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.cpp
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdContextOpsHandler.h"
+
+#include "MaxUsdContextOps.h"
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdContextOpsHandler::MaxUsdContextOpsHandler()
+    : UsdUfe::UsdContextOpsHandler()
+{
+}
+
+MaxUsdContextOpsHandler::~MaxUsdContextOpsHandler() { }
+
+/*static*/
+MaxUsdContextOpsHandler::Ptr MaxUsdContextOpsHandler::create()
+{
+    return std::make_shared<MaxUsdContextOpsHandler>();
+}
+
+Ufe::ContextOps::Ptr MaxUsdContextOpsHandler::contextOps(const Ufe::SceneItem::Ptr& item) const
+{
+    const UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+    return MaxUsdContextOps::create(usdItem);
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.h
new file mode 100644
index 0000000..cf7e8c2
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdContextOpsHandler.h
@@ -0,0 +1,48 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/UsdContextOpsHandler.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! \brief Interface to create a MaxUsdContextOpsHandler interface object.
+class MaxUsdContextOpsHandler : public UsdUfe::UsdContextOpsHandler
+{
+public:
+    typedef std::shared_ptr<MaxUsdContextOpsHandler> Ptr;
+
+    MaxUsdContextOpsHandler();
+    ~MaxUsdContextOpsHandler() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdContextOpsHandler(const MaxUsdContextOpsHandler&) = delete;
+    MaxUsdContextOpsHandler& operator=(const MaxUsdContextOpsHandler&) = delete;
+    MaxUsdContextOpsHandler(MaxUsdContextOpsHandler&&) = delete;
+    MaxUsdContextOpsHandler& operator=(MaxUsdContextOpsHandler&&) = delete;
+
+    //! Create a MaxUsdContextOpsHandler.
+    static MaxUsdContextOpsHandler::Ptr create();
+
+    // UsdUfe::UsdContextOpsHandler overrides
+    Ufe::ContextOps::Ptr contextOps(const Ufe::SceneItem::Ptr& item) const override;
+}; // MaxUsdContextOpsHandler
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.cpp
new file mode 100644
index 0000000..a6947cf
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.cpp
@@ -0,0 +1,117 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdEditCommand.h"
+
+#include <UFEUI/editCommand.h>
+
+#include <MaxUsd/Utilities/ListenerUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <usdUfe/undo/UsdUndoManager.h>
+
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+void MaxUsdEditCommand::post()
+{
+    // Trigger a redraw.
+    GetCOREInterface()->RedrawViews(GetCOREInterface()->GetTime());
+}
+
+// When executing, undoing, or redoing commands, output any exception's message to the listener.
+// UsdUfe does throw exceptions, and in maya-usd, they are similarly displayed in the listener.
+
+void MaxUsdEditCommand::execute()
+{
+    const auto stage = getStage();
+    if (!stage) {
+        return;
+    }
+
+    // On first execution of the command, remember what the edit target was. Any subsequent
+    // undo/redo will need to run on the same edit target.
+    std::call_once(storeTargetFlag, [this, &stage]() {
+        // Save current edit target - need to make sure undo/redo happens on the same edit target.
+        originalEditTarget = stage->GetEditTarget();
+        // Also make sure that edit target layer changes are tracked, for undo-redo.
+        UsdUfe::UsdUndoManager::instance().trackLayerStates(originalEditTarget.GetLayer());
+    });
+
+    if (!checkEditTarget()) {
+        return;
+    }
+
+    try {
+        EditCommand::execute();
+    } catch (const std::exception& ex) {
+        Listener::Write(MaxUsd::UsdStringToMaxString(ex.what()).data(), true);
+    }
+}
+
+void MaxUsdEditCommand::undo()
+{
+    if (!checkEditTarget()) {
+        return;
+    }
+
+    try {
+        EditCommand::undo();
+    } catch (const std::exception& ex) {
+        Listener::Write(MaxUsd::UsdStringToMaxString(ex.what()).data(), true);
+    }
+}
+
+void MaxUsdEditCommand::redo()
+{
+    if (!checkEditTarget()) {
+        return;
+    }
+
+    try {
+        EditCommand::redo();
+    } catch (const std::exception& ex) {
+        Listener::Write(MaxUsd::UsdStringToMaxString(ex.what()).data(), true);
+    }
+}
+
+pxr::UsdStageWeakPtr MaxUsdEditCommand::getStage()
+{
+    const auto prim = ufePathToPrim(itemPath());
+    if (!prim.IsValid()) {
+        return nullptr;
+    }
+    return prim.GetStage();
+}
+
+bool MaxUsdEditCommand::checkEditTarget()
+{
+    const auto stage = getStage();
+    if (!stage) {
+        return false;
+    }
+
+    if (undoRedoTargetFailure || stage->GetEditTarget() != originalEditTarget) {
+        Listener::Write(L"Unable to undo/redo USD edit. The edit target was changed.", true);
+        undoRedoTargetFailure |= true;
+        return false;
+    }
+    return true;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.h
new file mode 100644
index 0000000..ec33bc6
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.h
@@ -0,0 +1,53 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "UfeUtils.h"
+
+#include <UFEUI/editCommand.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+class MaxUsdEditCommand : public UfeUi::EditCommand
+{
+public:
+    using UfeUi::EditCommand::EditCommand;
+
+    void post() override;
+
+protected:
+    //! Undoable command overrides.
+    void execute() override;
+    void undo() override;
+    void redo() override;
+
+    pxr::UsdStageWeakPtr getStage();
+    bool                 checkEditTarget();
+
+private:
+    /// On first execution of the command, store the current edit target.
+    std::once_flag     storeTargetFlag;
+    pxr::UsdEditTarget originalEditTarget;
+    /// This flags tells us if an undo/redo operation was previously prevented
+    /// because of a change to the edit target since first execution of the command.
+    /// Once that happens, we should no longer perform any undo/redos, even if the target
+    /// changes back to the initial one, to avoid state inconsistencies.
+    bool undoRedoTargetFailure = false;
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.cpp
new file mode 100644
index 0000000..a488c97
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.cpp
@@ -0,0 +1,54 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdHierarchyHandler.h"
+
+#include "MaxUsdRootChildHierarchy.h"
+
+#include <usdUfe/ufe/UsdHierarchy.h>
+#include <usdUfe/ufe/UsdSceneItem.h>
+#include <usdUfe/ufe/Utils.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdHierarchyHandler::MaxUsdHierarchyHandler()
+    : UsdUfe::UsdHierarchyHandler()
+{
+}
+
+MaxUsdHierarchyHandler::~MaxUsdHierarchyHandler() { }
+
+/*static*/
+MaxUsdHierarchyHandler::Ptr MaxUsdHierarchyHandler::create()
+{
+    return std::make_shared<MaxUsdHierarchyHandler>();
+}
+
+Ufe::Hierarchy::Ptr MaxUsdHierarchyHandler::hierarchy(const Ufe::SceneItem::Ptr& item) const
+{
+    PXR_NAMESPACE_USING_DIRECTIVE
+    UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+    if (!TF_VERIFY(usdItem)) {
+        return nullptr;
+    }
+    if (UsdUfe::isRootChild(usdItem->path())) {
+        return MaxUsdRootChildHierarchy::create(usdItem);
+    }
+    return UsdUfe::UsdHierarchy::create(usdItem);
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.h
new file mode 100644
index 0000000..2c219e5
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdHierarchyHandler.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/UsdHierarchyHandler.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+/**
+ * \brief 3dsMax USD runtime hierarchy handler.
+ */
+class MaxUsdHierarchyHandler : public UsdUfe::UsdHierarchyHandler
+{
+public:
+    typedef std::shared_ptr<MaxUsdHierarchyHandler> Ptr;
+
+    MaxUsdHierarchyHandler();
+    ~MaxUsdHierarchyHandler() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdHierarchyHandler(const MaxUsdHierarchyHandler&) = delete;
+    MaxUsdHierarchyHandler& operator=(const MaxUsdHierarchyHandler&) = delete;
+    MaxUsdHierarchyHandler(MaxUsdHierarchyHandler&&) = delete;
+    MaxUsdHierarchyHandler& operator=(MaxUsdHierarchyHandler&&) = delete;
+
+    //! Create a MaxUsdHierarchyHandler.
+    static MaxUsdHierarchyHandler::Ptr create();
+
+    // UsdHierarchyHandler overrides
+    Ufe::Hierarchy::Ptr hierarchy(const Ufe::SceneItem::Ptr& item) const override;
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.cpp
new file mode 100644
index 0000000..a1222f9
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.cpp
@@ -0,0 +1,48 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdObject3d.h"
+
+#include "MaxUsdUndoMakeVisibleCommand.h"
+#include "MaxUsdUndoVisibleCommand.h"
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdObject3d::Ptr MaxUsdObject3d::create(const UsdUfe::UsdSceneItem::Ptr& item)
+{
+    return std::make_shared<MaxUsdObject3d>(item);
+}
+
+void MaxUsdObject3d::setVisibility(bool vis)
+{
+    const auto& visAttr = pxr::UsdGeomImageable(prim()).GetVisibilityAttr();
+    visAttr.Set(vis ? pxr::UsdGeomTokens->inherited : pxr::UsdGeomTokens->invisible);
+}
+
+Ufe::UndoableCommand::Ptr MaxUsdObject3d::setVisibleCmd(bool vis)
+{
+    return MaxUsdUndoVisibleCommand::create(prim(), vis);
+}
+
+Ufe::UndoableCommand::Ptr MaxUsdObject3d::makeVisibleCmd(bool vis)
+{
+    return MaxUsdUndoMakeVisibleCommand::create(prim(), vis);
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.h
new file mode 100644
index 0000000..38e2165
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3d.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/UsdObject3d.h>
+#include <usdUfe/ufe/UsdSceneItem.h>
+
+#include <ufe/object3d.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+/**
+ * \brief USD runtime 3D object interface
+/* This class implements the Object3d interface for USD prims.
+*/
+
+class MaxUsdObject3d : public UsdUfe::UsdObject3d
+{
+public:
+    using Ptr = std::shared_ptr<MaxUsdObject3d>;
+
+    using UsdObject3d::UsdObject3d;
+    ~MaxUsdObject3d() override = default;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdObject3d(const UsdObject3d&) = delete;
+    MaxUsdObject3d& operator=(const MaxUsdObject3d&) = delete;
+    MaxUsdObject3d(MaxUsdObject3d&&) = delete;
+    MaxUsdObject3d& operator=(MaxUsdObject3d&&) = delete;
+
+    //! Create a MaxUsdObject3d.
+    static MaxUsdObject3d::Ptr create(const UsdUfe::UsdSceneItem::Ptr& item);
+
+    //! Base behavior is to use "make visible/make invisible", we instead
+    // just want to set the attribute.
+    void                      setVisibility(bool vis) override;
+    Ufe::UndoableCommand::Ptr setVisibleCmd(bool vis) override;
+    Ufe::UndoableCommand::Ptr makeVisibleCmd(bool vis);
+
+}; // UsdObject3d
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.cpp
new file mode 100644
index 0000000..a147833
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdObject3dHandler.h"
+
+#include "MaxUsdObject3d.h"
+
+#include <usdufe/ufe/usdsceneitem.h>
+
+#include <ufe/runtimemgr.h>
+#include <ufe/sceneItem.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+/*static*/
+MaxUsdObject3dHandler::Ptr MaxUsdObject3dHandler::create()
+{
+    return std::make_shared<MaxUsdObject3dHandler>();
+}
+
+Ufe::Object3d::Ptr MaxUsdObject3dHandler::object3d(const Ufe::SceneItem::Ptr& item) const
+{
+    if (canCreateObject3dForItem(item)) {
+        UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+        return MaxUsdObject3d::create(usdItem);
+    }
+    return {};
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.h
new file mode 100644
index 0000000..3d585eb
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdObject3dHandler.h
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/base/api.h>
+#include <usdUfe/ufe/UsdObject3dHandler.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! \brief Overrides some UsdObject3dHandler functions, for Max specific requirements.
+class MaxUsdObject3dHandler : public UsdUfe::UsdObject3dHandler
+{
+public:
+    typedef std::shared_ptr<MaxUsdObject3dHandler> Ptr;
+
+    MaxUsdObject3dHandler() = default;
+    ~MaxUsdObject3dHandler() override = default;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdObject3dHandler(const MaxUsdObject3dHandler&) = delete;
+    MaxUsdObject3dHandler& operator=(const MaxUsdObject3dHandler&) = delete;
+    MaxUsdObject3dHandler(MaxUsdObject3dHandler&&) = delete;
+    MaxUsdObject3dHandler& operator=(MaxUsdObject3dHandler&&) = delete;
+
+    //! Create a UsdUIInfoHandler.
+    static MaxUsdObject3dHandler::Ptr create();
+
+    // UsdObject3dHandler overrides
+    Ufe::Object3d::Ptr object3d(const Ufe::SceneItem::Ptr& item) const override;
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.cpp
new file mode 100644
index 0000000..51635fd
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdRootChildHierarchy.h"
+
+#include <usdUfe/ufe/Global.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdRootChildHierarchy::MaxUsdRootChildHierarchy(const UsdUfe::UsdSceneItem::Ptr& item)
+    : UsdRootChildHierarchy(item)
+{
+}
+
+MaxUsdRootChildHierarchy::~MaxUsdRootChildHierarchy() { }
+
+MaxUsdRootChildHierarchy::Ptr
+MaxUsdRootChildHierarchy::create(const UsdUfe::UsdSceneItem::Ptr& item)
+{
+    return std::make_shared<MaxUsdRootChildHierarchy>(item);
+}
+
+bool MaxUsdRootChildHierarchy::childrenHook(
+    const pxr::UsdPrim& child,
+    Ufe::SceneItemList& children,
+    bool                filterInactive) const
+{
+    const auto pathSegment = Ufe::PathSegment { child.GetName(), UsdUfe::getUsdRunTimeId(), '/' };
+    if (!filterInactive || child.IsActive()) {
+        children.emplace_back(
+            UsdUfe::UsdSceneItem::create(sceneItem()->path() + pathSegment, child));
+    }
+    return true;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.h
new file mode 100644
index 0000000..0053790
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdRootChildHierarchy.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/UsdRootChildHierarchy.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+/**
+ * \brief USD runtime hierarchy interface for children of the USD root prim.
+ * This class modifies its base class implementation to fit the MaxUsd UFE
+ * path layout. When appending children to the path of a stage object, we need
+ * to create the new USD path segment. The stage object path contains a single
+ * segment with the GUID, and maps to the USD pseudo-root prim. Actual USD Prims
+ * always have paths in the form [Stage object path segment, usd path segment]
+ */
+class MaxUsdRootChildHierarchy : public UsdUfe::UsdRootChildHierarchy
+{
+public:
+    typedef std::shared_ptr<MaxUsdRootChildHierarchy> Ptr;
+
+    MaxUsdRootChildHierarchy(const UsdUfe::UsdSceneItem::Ptr& item);
+    ~MaxUsdRootChildHierarchy() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdRootChildHierarchy(const MaxUsdRootChildHierarchy&) = delete;
+    MaxUsdRootChildHierarchy& operator=(const MaxUsdRootChildHierarchy&) = delete;
+    MaxUsdRootChildHierarchy(MaxUsdRootChildHierarchy&&) = delete;
+    MaxUsdRootChildHierarchy& operator=(MaxUsdRootChildHierarchy&&) = delete;
+
+    //! Create a MaxUsdRootChildHierarchy.
+    static MaxUsdRootChildHierarchy::Ptr create(const UsdUfe::UsdSceneItem::Ptr& item);
+
+protected:
+    // UsdHierarchy overrides
+    bool childrenHook(
+        const PXR_NS::UsdPrim& child,
+        Ufe::SceneItemList&    children,
+        bool                   filterInactive) const override;
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.cpp
new file mode 100644
index 0000000..f27dc33
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.cpp
@@ -0,0 +1,35 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdStagesSubject.h"
+
+MaxUsdStagesSubject::MaxUsdStagesSubject()
+{
+    pxr::TfWeakPtr<MaxUsdStagesSubject> me(this);
+    onStageChangeNotice = pxr::TfNotice::Register(me, &MaxUsdStagesSubject::stageChanged);
+}
+
+MaxUsdStagesSubject::~MaxUsdStagesSubject() { pxr::TfNotice::Revoke(onStageChangeNotice); }
+
+/*static*/
+MaxUsdStagesSubject::Ptr MaxUsdStagesSubject::create()
+{
+    return pxr::TfCreateRefPtr(new MaxUsdStagesSubject);
+}
+
+void MaxUsdStagesSubject::stageChanged(pxr::UsdNotice::ObjectsChanged const& notice)
+{
+    StagesSubject::stageChanged(notice, notice.GetStage());
+}
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.h
new file mode 100644
index 0000000..e56c5d5
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdStagesSubject.h
@@ -0,0 +1,55 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/ufe/StagesSubject.h>
+
+/**
+ * \brief Derives the usdUfe stage subject - so that we can use the "global" notifications,
+ * targeting all stages.
+ */
+class MaxUsdStagesSubject : public UsdUfe::StagesSubject
+{
+public:
+    typedef PXR_NS::TfRefPtr<MaxUsdStagesSubject> Ptr;
+
+    /**
+     * \brief Constructor.
+     */
+    MaxUsdStagesSubject();
+
+    /**
+     * \brief Destructor.
+     */
+    ~MaxUsdStagesSubject();
+
+    /**
+     * \brief Creates a new MaxUsdStageSubject instance.
+     * \return the instance.
+     */
+    static MaxUsdStagesSubject::Ptr create();
+
+    /**
+     * \brief Responds to the global "any stage has changed objects" notification, which
+     * we forward to the base class.
+     * \param notice The objects changed notice.
+     */
+    void stageChanged(pxr::UsdNotice::ObjectsChanged const& notice);
+
+private:
+    /// Handle for the onStageChange notice so that we can revoke it upon destruction.
+    pxr::TfNotice::Key onStageChangeNotice;
+};
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.cpp
new file mode 100644
index 0000000..e777595
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.cpp
@@ -0,0 +1,128 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdUIInfoHandler.h"
+
+#include <usdufe/ufe/UsdUIInfoHandler.h>
+#include <usdufe/ufe/usdsceneitem.h>
+
+#include <ufe/runtimemgr.h>
+#include <ufe/sceneItem.h>
+
+#include <MaxUsd.h>
+#include <QtGui/qpalette.h>
+#include <QtWidgets/QApplication>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdUIInfoHandler::MaxUsdUIInfoHandler()
+{
+    const auto disabledColor
+        = QApplication::palette().color(QPalette::Disabled, QPalette::WindowText);
+    _invisibleColor = { disabledColor.redF(), disabledColor.greenF(), disabledColor.blueF() };
+}
+
+MaxUsdUIInfoHandler::Ptr MaxUsdUIInfoHandler::create()
+{
+    return std::make_shared<MaxUsdUIInfoHandler>();
+}
+
+Ufe::UIInfoHandler::Icon MaxUsdUIInfoHandler::treeViewIcon(const Ufe::SceneItem::Ptr& item) const
+{
+    auto icon = UsdUIInfoHandler::treeViewIcon(item);
+    // The base implementation provides direct support many USD types.
+    if (!icon.baseIcon.empty()) {
+        return icon;
+    }
+
+    // If the base implementation couldn't figure out the icon, look at the ancestor types.
+// clang-format off
+    static std::set<std::string> supportedAncestorTypes{
+        "BlendShape",
+        "Camera",
+        "Capsule",
+        "Cone",
+        "Cube",
+        "Cylinder",
+        "Def",
+        "GeomSubset",
+        "LightFilter",
+        "LightPortal",
+        "Material",
+        "Mesh",
+        "NurbsPatch",
+        "PluginLight",
+        "PointInstancer",
+        "Points",
+        "Scope",
+        "Shader",
+        "SkelAnimation",
+        "Skeleton",
+        "SkelRoot",
+        "Sphere",
+        "UsdGeomCurves",
+        "UsdGeomXformable",
+        "UsdLuxBoundableLightBase",
+        "UsdLuxNonboundableLightBase",
+        "UsdTyped",
+        "Volume"
+    };
+// clang-format on
+
+    const UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+    if (!usdItem) {
+        return icon;
+    }
+
+    // Iterate through the ancestor node types (which according to ufe docs are
+    // in order from closest ancestor to farthest, including this item as first
+    // node type) looking for an icon.
+    static const std::string baseIconName
+        = "out_" + Ufe::RunTimeMgr::instance().getName(usdItem->runTimeId()) + "_";
+    const auto ancestorNodeTypes = usdItem->ancestorNodeTypes();
+    // At index 0 is the prim's own type.
+    for (int i = 1; i < ancestorNodeTypes.size(); ++i) {
+        const auto& ty = ancestorNodeTypes[i];
+        if (supportedAncestorTypes.find(ty) == supportedAncestorTypes.end()) {
+            continue;
+        }
+        icon.baseIcon = baseIconName + ty;
+        return icon;
+    }
+    return icon;
+}
+
+std::string MaxUsdUIInfoHandler::treeViewTooltip(const Ufe::SceneItem::Ptr& item) const
+{
+    const UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+    if (!usdItem) {
+        return {};
+    }
+    const auto& prim = usdItem->prim();
+    if (!prim.IsValid()) {
+        return {};
+    }
+    std::string tooltip = "<p><strong>Path: </strong>" + prim.GetPath().GetString() + "</p>";
+    tooltip.append("<strong>Type: </strong> " + item->nodeType());
+    auto baseToolTip = UsdUIInfoHandler::treeViewTooltip(item);
+    if (!baseToolTip.empty()) {
+        tooltip.append("<br>" + UsdUIInfoHandler::treeViewTooltip(item));
+    }
+    return tooltip;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.h
new file mode 100644
index 0000000..add4aaf
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUIInfoHandler.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/base/api.h>
+#include <usdUfe/ufe/UsdSceneItem.h>
+#include <usdUfe/ufe/UsdUIInfoHandler.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! \brief Overrides some UsdUiInfoHandler functions, for Max specific requirements.
+class MaxUsdUIInfoHandler : public UsdUfe::UsdUIInfoHandler
+{
+public:
+    typedef std::shared_ptr<MaxUsdUIInfoHandler> Ptr;
+
+    MaxUsdUIInfoHandler();
+    ~MaxUsdUIInfoHandler() override = default;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdUIInfoHandler(const MaxUsdUIInfoHandler&) = delete;
+    MaxUsdUIInfoHandler& operator=(const MaxUsdUIInfoHandler&) = delete;
+    MaxUsdUIInfoHandler(MaxUsdUIInfoHandler&&) = delete;
+    MaxUsdUIInfoHandler& operator=(MaxUsdUIInfoHandler&&) = delete;
+
+    //! Create a UsdUIInfoHandler.
+    static MaxUsdUIInfoHandler::Ptr create();
+
+    Ufe::UIInfoHandler::Icon treeViewIcon(const Ufe::SceneItem::Ptr& item) const override;
+    std::string              treeViewTooltip(const Ufe::SceneItem::Ptr& item) const override;
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.cpp
new file mode 100644
index 0000000..4ec1d60
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.cpp
@@ -0,0 +1,56 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdUndoMakeVisibleCommand.h"
+
+#include <usdUfe/ufe/Utils.h>
+#include <usdUfe/undo/UsdUndoBlock.h>
+
+#include <pxr/usd/usdGeom/imageable.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdUndoMakeVisibleCommand::MaxUsdUndoMakeVisibleCommand(const UsdPrim& prim, bool vis)
+    : Ufe::UndoableCommand()
+    , _prim(prim)
+    , _visible(vis)
+{
+}
+
+MaxUsdUndoMakeVisibleCommand::~MaxUsdUndoMakeVisibleCommand() { }
+
+MaxUsdUndoMakeVisibleCommand::Ptr
+MaxUsdUndoMakeVisibleCommand::create(const UsdPrim& prim, bool vis)
+{
+    if (!prim) {
+        return nullptr;
+    }
+    return std::make_shared<MaxUsdUndoMakeVisibleCommand>(prim, vis);
+}
+
+void MaxUsdUndoMakeVisibleCommand::execute()
+{
+    UsdGeomImageable     primImageable(_prim);
+    UsdUfe::UsdUndoBlock undoBlock(&_undoableItem);
+    _visible ? primImageable.MakeVisible() : primImageable.MakeInvisible();
+}
+
+void MaxUsdUndoMakeVisibleCommand::redo() { _undoableItem.redo(); }
+
+void MaxUsdUndoMakeVisibleCommand::undo() { _undoableItem.undo(); }
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.h
new file mode 100644
index 0000000..c6e2496
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoMakeVisibleCommand.h
@@ -0,0 +1,60 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usdUfe/undo/UsdUndoableItem.h>
+
+#include <pxr/usd/usd/prim.h>
+
+#include <ufe/undoableCommand.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! \brief MaxUsdUndoMakeVisibleCommand
+class MaxUsdUndoMakeVisibleCommand : public Ufe::UndoableCommand
+{
+public:
+    typedef std::shared_ptr<MaxUsdUndoMakeVisibleCommand> Ptr;
+
+    // Public for std::make_shared() access, use create() instead.
+    MaxUsdUndoMakeVisibleCommand(const pxr::UsdPrim& prim, bool vis);
+    ~MaxUsdUndoMakeVisibleCommand() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdUndoMakeVisibleCommand(const MaxUsdUndoMakeVisibleCommand&) = delete;
+    MaxUsdUndoMakeVisibleCommand& operator=(const MaxUsdUndoMakeVisibleCommand&) = delete;
+    MaxUsdUndoMakeVisibleCommand(MaxUsdUndoMakeVisibleCommand&&) = delete;
+    MaxUsdUndoMakeVisibleCommand& operator=(MaxUsdUndoMakeVisibleCommand&&) = delete;
+
+    //! Create a MaxUsdUndoMakeVisibleCommand object
+    static MaxUsdUndoMakeVisibleCommand::Ptr create(const pxr::UsdPrim& prim, bool vis);
+
+private:
+    void execute() override;
+    void undo() override;
+    void redo() override;
+
+    pxr::UsdPrim            _prim;
+    bool                    _visible;
+    UsdUfe::UsdUndoableItem _undoableItem;
+
+}; // MaxUsdUndoMakeVisibleCommand
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.cpp b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.cpp
new file mode 100644
index 0000000..e2c003d
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.cpp
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsdUndoVisibleCommand.h"
+
+#include <usdUfe/base/tokens.h>
+#include <usdUfe/ufe/UsdUndoVisibleCommand.h>
+#include <usdUfe/ufe/Utils.h>
+#include <usdUfe/undo/UsdUndoBlock.h>
+
+#include <pxr/usd/usdGeom/imageable.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+MaxUsdUndoVisibleCommand::MaxUsdUndoVisibleCommand(const UsdPrim& prim, bool vis)
+    : Ufe::UndoableCommand()
+    , _prim(prim)
+    , _visible(vis)
+{
+}
+
+MaxUsdUndoVisibleCommand::~MaxUsdUndoVisibleCommand() { }
+
+MaxUsdUndoVisibleCommand::Ptr MaxUsdUndoVisibleCommand::create(const UsdPrim& prim, bool vis)
+{
+    if (!prim) {
+        return nullptr;
+    }
+    return std::make_shared<MaxUsdUndoVisibleCommand>(prim, vis);
+}
+
+void MaxUsdUndoVisibleCommand::execute()
+{
+    UsdGeomImageable     primImageable(_prim);
+    UsdUfe::UsdUndoBlock undoBlock(&_undoableItem);
+    const auto&          visAttr = pxr::UsdGeomImageable(_prim).GetVisibilityAttr();
+    visAttr.Set(_visible ? pxr::UsdGeomTokens->inherited : pxr::UsdGeomTokens->invisible);
+}
+
+void MaxUsdUndoVisibleCommand::redo() { _undoableItem.redo(); }
+
+void MaxUsdUndoVisibleCommand::undo() { _undoableItem.undo(); }
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.h b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.h
new file mode 100644
index 0000000..dae70f2
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/MaxUsdUndoVisibleCommand.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <usdUfe/undo/UsdUndoableItem.h>
+
+#include <pxr/usd/usd/prim.h>
+
+#include <ufe/undoableCommand.h>
+
+#include <MaxUsd.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! \brief MaxUsdUndoVisibleCommand
+class MaxUsdUndoVisibleCommand : public Ufe::UndoableCommand
+{
+public:
+    typedef std::shared_ptr<MaxUsdUndoVisibleCommand> Ptr;
+
+    // Public for std::make_shared() access, use create() instead.
+    MaxUsdUndoVisibleCommand(const PXR_NS::UsdPrim& prim, bool vis);
+    ~MaxUsdUndoVisibleCommand() override;
+
+    // Delete the copy/move constructors assignment operators.
+    MaxUsdUndoVisibleCommand(const MaxUsdUndoVisibleCommand&) = delete;
+    MaxUsdUndoVisibleCommand& operator=(const MaxUsdUndoVisibleCommand&) = delete;
+    MaxUsdUndoVisibleCommand(MaxUsdUndoVisibleCommand&&) = delete;
+    MaxUsdUndoVisibleCommand& operator=(MaxUsdUndoVisibleCommand&&) = delete;
+
+    //! Create a MaxUsdUndoVisibleCommand object
+    static MaxUsdUndoVisibleCommand::Ptr create(const PXR_NS::UsdPrim& prim, bool vis);
+
+private:
+    void execute() override;
+    void undo() override;
+    void redo() override;
+
+    PXR_NS::UsdPrim         _prim;
+    bool                    _visible;
+    UsdUfe::UsdUndoableItem _undoableItem;
+
+}; // UsdUndoVisibleCommand
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.cpp b/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.cpp
new file mode 100644
index 0000000..8856eff
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.cpp
@@ -0,0 +1,1745 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QmaxUsdUfeAttributesWidget.h"
+
+#include "MaxUsdEditCommand.h"
+#include "UfeUtils.h"
+
+#include <UFEUI/Widgets/qFilenameEdit.h>
+#include <UFEUI/genericCommand.h>
+#include <UFEUI/utils.h>
+
+#include <MaxUsd/Widgets/ElidedLabel.h>
+
+#include <pxr/usd/kind/registry.h>
+#include <pxr/usd/sdf/schema.h>
+#include <pxr/usd/usd/modelAPI.h>
+
+#include <Qt/QmaxMainWindow.h>
+#include <Qt/QmaxMultiSpinner.h>
+#include <Qt/QmaxSpinBox.h>
+#include <ufe/attribute.h>
+#include <ufe/attributes.h>
+#include <ufe/attributesNotification.h>
+#include <ufe/notification.h>
+#include <ufe/scene.h>
+#include <ufe/sceneNotification.h>
+#include <ufe/undoableCommandMgr.h>
+
+#include <QtWidgets/QtWidgets>
+#include <maxapi.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+namespace {
+
+inline std::vector<std::string> extractSchemaAttributeNames(const TfType& t)
+{
+    static std::map<TfType, std::vector<std::string>> cache;
+    auto                                              it = cache.find(t);
+    if (it != cache.end()) {
+        return it->second;
+    }
+
+    // Extract attribute names via Python. Currently there seems to exist no way
+    // to extract those using purely C++.
+
+    std::vector<std::string> results;
+
+    PyGILState_STATE gstate = PyGILState_Ensure();
+    {
+        auto pw = t.GetPythonClass();
+        if (pw) {
+            auto      names = pw.attr("GetSchemaAttributeNames")(false);
+            const int len = boost::python::len(names);
+            for (int i = 0; i < len; i++) {
+                auto name = names.attr("__getitem__")(i);
+                if (name.is_none()) {
+                    continue;
+                }
+                results.emplace_back(boost::python::extract<std::string>(name));
+            }
+        }
+    }
+    PyGILState_Release(gstate);
+
+    cache[t] = results;
+    return results;
+}
+
+inline std::string identifierOrTypeName(const TfType& type)
+{
+// FindSchemaInfo is not present in older versions
+#if PXR_MAJOR_VERSION >= 0 && PXR_MINOR_VERSION >= 23
+    auto info = UsdSchemaRegistry::FindSchemaInfo(type);
+    if (info && info->kind != UsdSchemaKind::Invalid) {
+        const auto& identifier = info->identifier.GetString();
+        if (!identifier.empty()) {
+            return identifier;
+        }
+    }
+#endif
+
+    return type.GetTypeName();
+}
+
+template <typename T>
+std::vector<std::shared_ptr<T>> castAttributes(const std::vector<Ufe::Attribute::Ptr>& attributes)
+{
+    std::vector<std::shared_ptr<T>> castedAttributes;
+    for (const auto& a : attributes) {
+        auto casted = std::dynamic_pointer_cast<T>(a);
+        if (!casted) {
+            return {};
+        }
+        castedAttributes.emplace_back(casted);
+    }
+    return castedAttributes;
+}
+
+template <typename T, typename V> std::unique_ptr<T> commonValue(const std::vector<V>& attributes)
+{
+    std::unique_ptr<T> value;
+    for (const auto& a : attributes) {
+        if (!value) {
+            value = std::make_unique<T>(a->get());
+        } else if (*value != a->get()) {
+            value.reset();
+            break;
+        }
+    }
+    return value;
+}
+
+template <typename T>
+std::unique_ptr<T>
+commonValue(const std::vector<std::shared_ptr<Ufe::TypedAttribute<T>>>& attributes)
+{
+    return commonValue<T, std::shared_ptr<Ufe::TypedAttribute<T>>>(attributes);
+}
+
+std::unique_ptr<std::string> commonValue(const std::vector<Ufe::AttributeFilename::Ptr>& attributes)
+{
+    return commonValue<std::string, Ufe::AttributeFilename::Ptr>(attributes);
+}
+
+std::unique_ptr<std::string>
+commonValue(const std::vector<Ufe::AttributeEnumString::Ptr>& attributes)
+{
+    return commonValue<std::string, Ufe::AttributeEnumString::Ptr>(attributes);
+}
+
+/**
+ * \brief RAII class meant for wrapping attribute edits with other commands. Currently
+ * used to work around USD refresh issues.
+ * \tparam A The attribute type.
+ */
+template <typename A> class AttrSetWrapper
+{
+public:
+    AttrSetWrapper(
+        std::shared_ptr<Ufe::CompositeUndoableCommand> compositeCmd,
+        const std::vector<std::shared_ptr<A>>&         attributes,
+        const std::string&                             attributeName)
+        : compositeCmd(compositeCmd)
+        , attributes(attributes)
+        , attributeName(attributeName)
+    {
+        this->compositeCmd = compositeCmd;
+
+        // Working around hdStorm issue where building model cards "live" can cause
+        // a hang when setting card textures. The idea is to temporarily disable the
+        // draw mode by setting an empty model kind. Once we are done, we reapply the model kind.
+        // See https://github.com/PixarAnimationStudios/OpenUSD/issues/3239
+        // There are also general refresh issues in USD when editing the model api, so do this trick
+        // for all attributes part of the schema.
+
+        if (attributeName.rfind("model:", 0) != std::string::npos) {
+            for (auto a : attributes) {
+                auto item = a->sceneItem();
+                auto prim = MaxUsd::ufe::ufePathToPrim(item->path());
+
+                pxr::TfToken kindBefore;
+                pxr::UsdModelAPI { prim }.GetKind(&kindBefore);
+                kindsBefore.push_back(kindBefore);
+
+                pxr::TfToken newKind;
+                auto cmdLambda = [prim, newKind, kindBefore](UfeUI::GenericCommand::Mode mode) {
+                    pxr::UsdModelAPI { prim }.SetKind(
+                        mode == UfeUI::GenericCommand::Mode::kRedo ? newKind : kindBefore);
+                };
+                auto genericCmd = UfeUI::GenericCommand::create(cmdLambda, "");
+                compositeCmd->append(genericCmd);
+            }
+        }
+    }
+
+    ~AttrSetWrapper()
+    {
+        if (!kindsBefore.empty()) {
+            for (int i = 0; i < attributes.size(); ++i) {
+                auto item = attributes[i]->sceneItem();
+                auto prim = MaxUsd::ufe::ufePathToPrim(item->path());
+
+                pxr::TfToken kindBefore;
+                pxr::TfToken newKind = kindsBefore[i];
+
+                auto cmdLambda = [prim, newKind, kindBefore](UfeUI::GenericCommand::Mode mode) {
+                    pxr::UsdModelAPI { prim }.SetKind(
+                        mode == UfeUI::GenericCommand::Mode::kRedo ? newKind : kindBefore);
+                };
+                auto genericCmd = UfeUI::GenericCommand::create(cmdLambda, "");
+                compositeCmd->append(genericCmd);
+            }
+        }
+    }
+
+private:
+    std::shared_ptr<Ufe::CompositeUndoableCommand> compositeCmd;
+    const std::vector<std::shared_ptr<A>>&         attributes;
+    const std::string&                             attributeName;
+
+    std::vector<pxr::TfToken> kindsBefore;
+};
+
+template <typename A, typename T>
+void applyChanges(
+    const Ufe::Path&                       itemPath,
+    const std::vector<std::shared_ptr<A>>& attributes,
+    const std::string&                     attributeName,
+    const T&                               value)
+{
+    const auto compositeCmd = Ufe::CompositeUndoableCommand::create({});
+
+    {
+        // RAII command wrapper working around some USD refresh issues...
+        const auto wrap = AttrSetWrapper<A> { compositeCmd, attributes, attributeName };
+
+        for (const auto& a : attributes) {
+            compositeCmd->append(a->setCmd(value));
+        }
+    }
+
+    if (!compositeCmd->cmdsList().empty()) {
+        auto commandName = QApplication::translate("USDStageObject", "Change USD attribute '%1'")
+                               .arg(QString::fromStdString(attributeName))
+                               .toStdString();
+        Ufe::UndoableCommandMgr::instance().executeCmd(
+            UfeUi::EditCommand::create(itemPath, compositeCmd, commandName));
+    }
+}
+
+void applyChanges(
+    const Ufe::Path&                       itemPath,
+    const UfeUI::GenericCommand::Callback& callback,
+    const std::string&                     commandName)
+{
+    auto genericCmd = UfeUI::GenericCommand::create(callback, commandName);
+    Ufe::UndoableCommandMgr::instance().executeCmd(
+        UfeUi::EditCommand::create(itemPath, genericCmd, commandName));
+}
+
+void applyChanges(
+    const Ufe::Path&                  itemPath,
+    UfeUI::GenericCommand::Callback&& callback,
+    const std::string&                commandName)
+{
+    auto genericCmd = UfeUI::GenericCommand::create(callback, commandName);
+    Ufe::UndoableCommandMgr::instance().executeCmd(
+        UfeUi::EditCommand::create(itemPath, genericCmd, commandName));
+}
+
+QString cleanDocumentation(const std::string& doc)
+{
+    static std::unordered_map<std::string, QString> cache;
+    auto                                            cacheIt = cache.find(doc);
+    if (cacheIt != cache.end()) {
+        return cacheIt->second;
+    }
+
+    QString result;
+    result.reserve(static_cast<int>(doc.size()));
+
+    auto qdoc = QString::fromStdString(doc);
+
+    // -- remove the markdown lists and convert them into regular blocks.
+    QRegularExpression listRegexp(
+        R"((?>(\n\n)|^)(^((?<indent>\s+)- )(?<firstLine>.+)\n(?<nextLines>(\g{indent}  (.+)\n?)*)))",
+        QRegularExpression::MultilineOption);
+    auto listMatch = listRegexp.globalMatch(qdoc);
+    auto replacements = std::vector<std::tuple<int, int, QString>>();
+    while (listMatch.hasNext()) {
+        auto m = listMatch.next();
+        auto l = m.captured("firstLine") + "\n" + m.captured("nextLines").simplified();
+        replacements.push_back(std::make_tuple(m.capturedStart(), m.capturedLength(), l));
+    }
+    bool isLast = true;
+    for (auto it = replacements.rbegin(); it != replacements.rend(); ++it) {
+        auto    start = std::get<0>(*it);
+        auto    len = std::get<1>(*it);
+        QString s = std::get<2>(*it);
+        qdoc.replace(start, len, QString("\n\n") + s + (isLast ? "\n\n" : ""));
+        isLast = false;
+    }
+
+    auto lines = qdoc.split("\n");
+    for (const auto& line : lines) {
+        auto l = line.simplified(); // replaces continuous white spaces, trims begin and end
+        if (!result.isEmpty()) {
+            if (l.isEmpty()) {
+                if (result.back() != '\n') {
+                    result += "\n\n";
+                }
+                continue;
+            }
+            if (result.back() != '\n') {
+                result += " ";
+            }
+        }
+        result += l;
+    }
+
+    { // converts the markdown bold/emphasized "__something__" or "_something_" to just "something"
+        QRegularExpression bold(
+            R"((?>^|\s)(?<open>(__)|(_))(?U:.+)(?<close>(\g{open}))(?>[:.,;\s]))",
+            QRegularExpression::MultilineOption);
+        auto boldMatch = bold.globalMatch(result);
+        replacements.clear();
+        while (boldMatch.hasNext()) {
+            auto match = boldMatch.next();
+            replacements.emplace_back(
+                match.capturedStart("open"), match.capturedLength("open"), "");
+            replacements.emplace_back(
+                match.capturedStart("close"), match.capturedLength("close"), "");
+        }
+        for (auto it = replacements.rbegin(); it != replacements.rend(); ++it) {
+            auto start = std::get<0>(*it);
+            auto len = std::get<1>(*it);
+            result.replace(start, len, "");
+        }
+    }
+
+    { // make a new line after the first sentence
+        QRegularExpression re(R"((?<!i\.e)\.(\s+|\n+))");
+        auto               match = re.match(result);
+        if (match.hasMatch()) {
+            result.replace(match.capturedStart(), match.capturedLength(), ".\n\n");
+        }
+    }
+
+    { // searches see /sa links with or without html style hyper links
+        QRegularExpression sa(
+            R"((^|(see)?\s)((\\sa)|(\\see))\s+((<a.*<\/a>)|(\S+))\.?)",
+            QRegularExpression::MultilineOption);
+        result.replace(sa, "");
+    }
+
+    { // replaces markdown URLs with their plain display name
+        QRegularExpression markDownURLS(
+            R"(\[(?<name>.+)\]\(.+\))", QRegularExpression::MultilineOption);
+        auto markDownURL = markDownURLS.globalMatch(result);
+        replacements.clear();
+        while (markDownURL.hasNext()) {
+            auto match = markDownURL.next();
+            replacements.emplace_back(
+                match.capturedStart(), match.capturedLength(), match.captured("name"));
+        }
+        for (auto it = replacements.rbegin(); it != replacements.rend(); ++it) {
+            auto start = std::get<0>(*it);
+            auto len = std::get<1>(*it);
+            result.replace(start, len, std::get<2>(*it));
+        }
+    }
+
+    { // replaces ": http(s)://..." links with "."
+        QRegularExpression colonHttp(R"(:\s(https?://\S+))", QRegularExpression::MultilineOption);
+        result.replace(colonHttp, ".");
+    }
+
+    { // removes "See http(s)://..." links
+        QRegularExpression seeHttp(
+            R"((^|(See)?\s)(https?://\S+))", QRegularExpression::MultilineOption);
+        result.replace(seeHttp, "");
+    }
+
+    { // removes free standing "\c" and "\a"
+        QRegularExpression moreStuff(
+            R"((?>^|\s)((\\c)|(\\a))\s)", QRegularExpression::MultilineOption);
+        result.replace(moreStuff, " ");
+    }
+
+    {
+        QRegularExpression evenMoreStuff(R"(\bsee .)", QRegularExpression::MultilineOption);
+        result.replace(evenMoreStuff, "");
+    }
+
+    {
+        QRegularExpression note(R"(\\note\s)", QRegularExpression::MultilineOption);
+        result.replace(note, "");
+    }
+
+    result = result.trimmed();
+    cache[doc] = result;
+    return result;
+}
+
+} // namespace
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+class QmaxUsdUfeDoubleSpinner : public MaxSDK::QmaxMultiSpinner
+{
+public:
+    QmaxUsdUfeDoubleSpinner(
+        int      numSpinners,
+        int      numCols,
+        bool     isIntegralType,
+        QWidget* parent = nullptr)
+        : QmaxMultiSpinner(numSpinners, numCols, parent)
+    {
+        if (isIntegralType) {
+            for (auto s : findChildren<MaxSDK::QmaxDoubleSpinBox*>()) {
+                s->setDecimals(0);
+            }
+        }
+    }
+
+    virtual QVector<double> fromMaxTypeVariant(const QVariant& value) const
+    {
+        return value.value<QVector<double>>();
+    };
+
+    virtual QVariant toMaxTypeVariant(const QVector<double>& spinnerValues) const
+    {
+        return QVariant::fromValue(spinnerValues);
+    }
+
+    virtual void setIndeterminate(bool indeterminate)
+    {
+        for (auto s : findChildren<MaxSDK::QmaxDoubleSpinBox*>()) {
+            s->setIndeterminate(indeterminate);
+        }
+    }
+};
+
+class QmaxUsdUfeAttributesWidgetObserver : public Ufe::Observer
+{
+public:
+    QmaxUsdUfeAttributesWidgetObserver(QmaxUsdUfeAttributesWidgetPrivate* p)
+        : _p(p)
+    {
+    }
+
+    void operator()(const Ufe::Notification& notification) override;
+
+    QmaxUsdUfeAttributesWidgetPrivate* _p = nullptr;
+};
+
+class QmaxUsdUfeAttributesWidgetPrivate
+{
+public:
+    QmaxUsdUfeAttributesWidgetPrivate(QmaxUsdUfeAttributesWidget* q)
+        : q_ptr(q)
+        , _observer(std::make_shared<QmaxUsdUfeAttributesWidgetObserver>(this))
+    {
+        Ufe::Scene::instance().addObserver(_observer);
+    }
+
+    ~QmaxUsdUfeAttributesWidgetPrivate()
+    {
+        _observer->_p = nullptr;
+        for (const auto& item : _observedAttributesSceneItems) {
+            Ufe::Attributes::removeObserver(item.second, _observer);
+        }
+        _observedAttributesSceneItems.clear();
+        Ufe::Scene::instance().removeObserver(_observer);
+
+        // making sure the timer is not executing any more after this object
+        // being destroyed!
+        *_callbacksQueued = false;
+    }
+
+    void observeAttributeValueChanged(
+        const Ufe::Selection&        selection,
+        const std::string&           attributeName,
+        const std::function<void()>& callback);
+    void observeSceneObjectAddOrRemoved(
+        const Ufe::Selection&        selection,
+        const std::function<void()>& callback);
+    void observeSceneSubtreeInvalidate(
+        const Ufe::Selection&        selection,
+        const std::function<void()>& callback);
+
+    /** The returned control has the display name of the first attribute set as
+     * the qt object name. */
+    QWidget* addControl(const Ufe::Selection& selection, const std::string& attributeName);
+
+    // Below are templates for supporting spinners for N Dimensional UFE attributes such as
+    // Float, Float2, Float3, Float4, Int, Int3, Double, Double3, Color3, Color4...
+
+    template <
+        // The type of the UFE attribute (e.g. : "Ufe::AttributeFloat3").
+        typename UfeAttrType,
+        // // Raw basic c type backing the attribute (e.g. int/float/double).
+        typename CType,
+        // Dimension of the attribute (e.g. 1 for AttributeFloat, 3 for AttributeFloat3).
+        int Dimension,
+        // The UFE type backing the attribute, auto-deduced from the attribute type.
+        typename UfeType = std::decay_t<decltype(std::declval<UfeAttrType>().get())>,
+        // Whether the c type is an integral type (vs floating).
+        bool isIntegral = std::is_integral<CType>::value>
+    QWidget* buildMultiSpinnerWidget(
+        std::vector<Ufe::Attribute::Ptr> attributes,
+        const std::string&               attributeName,
+        const Ufe::Path&                 itemPath,
+        const Ufe::Selection&            selection,
+        QmaxUsdUfeAttributesWidget*      q)
+    {
+        auto numericAttributes = castAttributes<UfeAttrType>(attributes);
+        if (numericAttributes.empty()) {
+            return nullptr;
+        }
+
+        QPointer<QmaxUsdUfeDoubleSpinner> spinBox
+            = new QmaxUsdUfeDoubleSpinner(Dimension, 1, isIntegral, q);
+        spinBox->setMinimum(std::numeric_limits<CType>::lowest());
+        spinBox->setMaximum(std::numeric_limits<CType>::max());
+        spinBox->setMinimumWidth(100);
+        auto name = QString::fromStdString(numericAttributes.front()->displayName()).simplified();
+        spinBox->setObjectName(name);
+        auto tooltip = cleanDocumentation(numericAttributes.front()->documentation());
+        tooltip = tooltip.isEmpty() ? name : (name + "\n\n" + tooltip);
+        spinBox->setToolTip(tooltip);
+        spinBox->setToolTipDuration(-1);
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [spinBox, numericAttributes, updating]() {
+            if (!spinBox) {
+                return;
+            }
+            auto value = commonValue(numericAttributes);
+            *updating = true;
+            if (value) {
+                QVector<double> val = getSpinnerValues(*value);
+                spinBox->setIndeterminate(false);
+                spinBox->setValue(spinBox->toMaxTypeVariant(val));
+            } else {
+                spinBox->setIndeterminate(true);
+            }
+            *updating = false;
+        };
+        updateUI();
+
+        std::shared_ptr<bool>    isInteractive = std::make_shared<bool>(false);
+        std::shared_ptr<UfeType> ufeValueInit = std::make_shared<UfeType>();
+
+        QObject::connect(
+            spinBox,
+            &MaxSDK::QmaxMultiSpinner::interactiveChanged,
+            [isInteractive, itemPath, numericAttributes, attributeName, ufeValueInit, spinBox](
+                bool interactive) {
+                // Start of an interactive edit, store the initial value of the attribute.
+                if (!*isInteractive && interactive) {
+
+                    auto spinnerValues = spinBox->fromMaxTypeVariant(spinBox->value());
+                    setUfeValue(spinnerValues, *ufeValueInit);
+                }
+
+                // End of an interactive edit...
+                if (*isInteractive && !interactive) {
+
+                    UfeType ufeValueCurr;
+                    auto    spinnerValues = spinBox->fromMaxTypeVariant(spinBox->value());
+                    setUfeValue(spinnerValues, ufeValueCurr);
+
+                    // Revert to initial to undo from the correct value...
+                    for (const auto& a : numericAttributes) {
+                        a->set(*ufeValueInit);
+                    }
+                    // Apply the new value from an undoable command.
+                    applyChanges(itemPath, numericAttributes, attributeName, ufeValueCurr);
+                }
+                *isInteractive = interactive;
+            });
+
+        QObject::connect(
+            spinBox,
+            &MaxSDK::QmaxMultiSpinner::valueChanged,
+            [itemPath,
+             numericAttributes,
+             updating,
+             updateUI,
+             attributeName,
+             spinBox,
+             isInteractive](QVariant value) {
+                if (*updating || !spinBox) {
+                    return;
+                }
+                auto spinnerValues = spinBox->fromMaxTypeVariant(value);
+
+                UfeType ufeValue;
+                setUfeValue(spinnerValues, ufeValue);
+
+                // In interactive mode, simply set the values and refresh the viewport.
+                if (*isInteractive) {
+                    for (const auto& a : numericAttributes) {
+                        a->set(ufeValue);
+                    }
+                    GetCOREInterface()->RedrawViews(GetCOREInterface()->GetTime());
+                }
+                // In non-interactive mode, apply the changes through undoable commands.
+                else {
+                    applyChanges(itemPath, numericAttributes, attributeName, ufeValue);
+                }
+                // The value set may not be the stronger opinion or the attribute could be
+                // uneditable...
+                updateUI();
+            });
+
+        observeAttributeValueChanged(selection, attributeName, updateUI);
+
+        if (Dimension > 1) {
+            if (GetCOREInterface() && GetCOREInterface()->GetQmaxMainWindow()
+                && GetCOREInterface()->GetQmaxMainWindow()->style()) {
+                int s = GetCOREInterface()->GetQmaxMainWindow()->style()->pixelMetric(
+                    QStyle::PM_LayoutVerticalSpacing);
+                spinBox->setContentsMargins(0, s, 0, s);
+            }
+        }
+        return spinBox;
+    }
+
+    // Helper templates to retrieve the N dimensional arrays backing some UFE attribute types.
+    // Ufe Vector and Color types are both backed by std::arrays.
+    template <typename CType, int Dimension>
+    static std::array<CType, Dimension>& getArrayValue(Ufe::TypedColorN<CType, Dimension>& ufeColor)
+    {
+        return ufeColor.color;
+    }
+
+    template <typename CType, int Dimension>
+    static std::array<CType, Dimension>&
+    getArrayValue(Ufe::TypedVectorN<CType, Dimension>& ufeVector)
+    {
+        return ufeVector.vector;
+    }
+
+    // Helper templates to get values to assign to the spinners. We need a template
+    // for raw types (e.g AttributeFloat, Ufe::AttributeInt, etc.) and
+    // another template for array backed type (from Ufe::AttributeFloat3)
+    template <
+        class CType,
+        typename std::enable_if<
+            (std::is_floating_point<CType>::value
+             || std::is_integral<CType>::value)>::type* = nullptr>
+    static QVector<double> getSpinnerValues(CType& ufeVal)
+    {
+        QVector<double> val { static_cast<double>(ufeVal) };
+        return val;
+    }
+
+    template <
+        typename ArrayBackedType,
+        typename std::enable_if<
+            (!std::is_floating_point<ArrayBackedType>::value
+             && !std::is_integral<ArrayBackedType>::value)>::type* = nullptr>
+    static QVector<double> getSpinnerValues(ArrayBackedType& ufeVal)
+    {
+        QVector<double> val;
+        const auto&     arr = getArrayValue(ufeVal);
+        for (int i = 0; i < arr.size(); ++i) {
+            val.push_back(arr[i]);
+        }
+        return val;
+    }
+
+    // Helper templates to set UFE attributes from current spinner values. We need
+    // a template for raw types (e.g AttributeFloat, Ufe::AttributeInt, etc.) and
+    // another template for array backed type (from Ufe::AttributeFloat3)
+    template <
+        class CType,
+        typename std::enable_if<
+            (std::is_floating_point<CType>::value
+             || std::is_integral<CType>::value)>::type* = nullptr>
+    static void setUfeValue(const QVector<double>& spinnerVals, CType& ufeVal)
+    {
+        ufeVal = static_cast<CType>(spinnerVals[0]);
+    }
+
+    template <
+        typename ArrayBackedType,
+        typename std::enable_if<
+            (!std::is_floating_point<ArrayBackedType>::value
+             && !std::is_integral<ArrayBackedType>::value)>::type* = nullptr>
+    static void setUfeValue(const QVector<double>& spinnerVals, ArrayBackedType& ufeVal)
+    {
+        auto& arr = getArrayValue(ufeVal);
+        for (int i = 0; i < spinnerVals.size(); ++i) {
+            arr[i] = spinnerVals[i];
+        }
+    }
+
+private:
+    QmaxUsdUfeAttributesWidget* q_ptr = nullptr;
+    Q_DECLARE_PUBLIC(QmaxUsdUfeAttributesWidget);
+
+    std::unordered_map<Ufe::Path, Ufe::SceneItem::Ptr>  _observedAttributesSceneItems;
+    std::shared_ptr<QmaxUsdUfeAttributesWidgetObserver> _observer;
+
+    std::unordered_map<std::string, std::function<void()>> _attributeValueChangedCallbacks;
+    std::vector<std::function<void()>>                     _objectAddOrDeleteCallbacks;
+    std::vector<std::function<void()>>                     _subtreeInvalidateCallbacks;
+
+    std::unordered_multimap<Ufe::Path, int> _objectAddOrDeleteCallbackIndices;
+    std::unordered_multimap<Ufe::Path, int> _subtreeInvalidateCallbackIndices;
+
+    std::unordered_set<int>         _queuedObjectAddOrDeleteCallbackIndices;
+    std::unordered_set<int>         _queuedSubtreeInvalidateCallbackIndices;
+    std::unordered_set<std::string> _queuedAttributeChangedCallbacks;
+
+    std::shared_ptr<bool> _callbacksQueued = std::make_shared<bool>(false);
+    void                  queueCallbacks();
+
+    friend class QmaxUsdUfeAttributesWidgetObserver;
+};
+
+void QmaxUsdUfeAttributesWidgetObserver::operator()(const Ufe::Notification& notification)
+{
+    if (!_p) {
+        return;
+    }
+
+    bool changed = false;
+
+    if (auto attrNotification = dynamic_cast<const Ufe::AttributeChanged*>(&notification)) {
+        changed = _p->_queuedAttributeChangedCallbacks.insert(attrNotification->name()).second;
+    }
+
+    if (!_p->_objectAddOrDeleteCallbacks.empty()) {
+        if (auto objectAdd = dynamic_cast<const Ufe::ObjectAdd*>(&notification)) {
+            auto range
+                = _p->_objectAddOrDeleteCallbackIndices.equal_range(objectAdd->changedPath());
+            for (auto it = range.first; it != range.second; ++it) {
+                changed |= _p->_queuedObjectAddOrDeleteCallbackIndices.insert(it->second).second;
+            }
+        } else if (
+            auto objectPostDelete = dynamic_cast<const Ufe::ObjectPostDelete*>(&notification)) {
+            auto range = _p->_objectAddOrDeleteCallbackIndices.equal_range(
+                objectPostDelete->changedPath());
+            for (auto it = range.first; it != range.second; ++it) {
+                changed |= _p->_queuedObjectAddOrDeleteCallbackIndices.insert(it->second).second;
+            }
+        }
+    }
+
+    if (!_p->_subtreeInvalidateCallbacks.empty()) {
+        if (auto subtreeInvalidate = dynamic_cast<const Ufe::SubtreeInvalidate*>(&notification)) {
+            auto range = _p->_subtreeInvalidateCallbackIndices.equal_range(
+                subtreeInvalidate->changedPath());
+            for (auto it = range.first; it != range.second; ++it) {
+                changed |= _p->_queuedSubtreeInvalidateCallbackIndices.insert(it->second).second;
+            }
+        }
+    }
+
+    if (changed) {
+        _p->queueCallbacks();
+    }
+}
+
+void QmaxUsdUfeAttributesWidgetPrivate::observeAttributeValueChanged(
+    const Ufe::Selection&        selection,
+    const std::string&           attributeName,
+    const std::function<void()>& callback)
+{
+    _attributeValueChangedCallbacks[attributeName] = callback;
+
+    for (const auto& item : selection) {
+        if (_observedAttributesSceneItems.emplace(item->path(), item).second) {
+            Ufe::Attributes::addObserver(item, _observer);
+        }
+    }
+}
+
+void QmaxUsdUfeAttributesWidgetPrivate::observeSceneObjectAddOrRemoved(
+    const Ufe::Selection&        selection,
+    const std::function<void()>& callback)
+{
+    int idx = static_cast<int>(_objectAddOrDeleteCallbacks.size());
+    _objectAddOrDeleteCallbacks.emplace_back(callback);
+
+    for (const auto& item : selection) {
+        _objectAddOrDeleteCallbackIndices.emplace(item->path(), idx);
+    }
+}
+
+void QmaxUsdUfeAttributesWidgetPrivate::observeSceneSubtreeInvalidate(
+    const Ufe::Selection&        selection,
+    const std::function<void()>& callback)
+{
+    int idx = static_cast<int>(_subtreeInvalidateCallbacks.size());
+    _subtreeInvalidateCallbacks.emplace_back(callback);
+
+    for (const auto& item : selection) {
+        _subtreeInvalidateCallbackIndices.emplace(item->path(), idx);
+    }
+}
+
+void QmaxUsdUfeAttributesWidgetPrivate::queueCallbacks()
+{
+    if (*_callbacksQueued || !_callbacksQueued) {
+        return;
+    }
+    *_callbacksQueued = true;
+
+    std::shared_ptr<bool> queued = _callbacksQueued;
+    QTimer::singleShot(0, [this, queued] {
+        if (*queued) {
+            std::unordered_set<int>         objectAddOrDeleteQueue;
+            std::unordered_set<int>         subtreeInvalidateQueue;
+            std::unordered_set<std::string> attributeValueChangedQueue;
+
+            std::swap(objectAddOrDeleteQueue, _queuedObjectAddOrDeleteCallbackIndices);
+            std::swap(subtreeInvalidateQueue, _queuedSubtreeInvalidateCallbackIndices);
+            std::swap(attributeValueChangedQueue, _queuedAttributeChangedCallbacks);
+
+            *queued = false;
+
+            for (auto idx : objectAddOrDeleteQueue) {
+                _objectAddOrDeleteCallbacks[idx]();
+            }
+
+            for (auto idx : subtreeInvalidateQueue) {
+                _subtreeInvalidateCallbacks[idx]();
+            }
+
+            for (const auto& a : attributeValueChangedQueue) {
+                auto it = _attributeValueChangedCallbacks.find(a);
+                if (it != _attributeValueChangedCallbacks.end()) {
+                    it->second();
+                }
+            }
+        }
+    });
+}
+
+QWidget* QmaxUsdUfeAttributesWidgetPrivate::addControl(
+    const Ufe::Selection& selection,
+    const std::string&    attributeName)
+{
+    Q_Q(QmaxUsdUfeAttributesWidget);
+
+    // check if the attributes with the given name of the selection are the same type
+    std::vector<Ufe::Attribute::Ptr>         attributes;
+    std::unordered_set<Ufe::Attribute::Type> attributeTypes;
+    Ufe::Path                                itemPath;
+    for (const auto& item : selection) {
+        auto itemAttributes = Ufe::Attributes::attributes(item);
+        auto attr = itemAttributes->attribute(attributeName);
+        if (attr) {
+            // We use the first (non-empty) path of an item for the creation of
+            // the undo command, as all of our selected sub-objects are assumed
+            // to share the same edit target.
+            if (itemPath.empty()) {
+                itemPath = item->path();
+            }
+            attributes.emplace_back(attr);
+            attributeTypes.insert(attr->type());
+        } else {
+            return nullptr;
+        }
+    }
+    // There are no attributes with the given name at all or they have different
+    // types. In both cases there's nothing we can do -> outa here!
+    if (attributeTypes.size() != 1) {
+        return nullptr;
+    }
+
+    Ufe::Attribute::Type type = *attributeTypes.begin();
+
+    // Now comes the fun part :)
+    // -------------------------------------------------------------------------
+    // BOOL
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kBool) {
+        auto boolAttributes = castAttributes<Ufe::AttributeBool>(attributes);
+        if (boolAttributes.empty()) {
+            return nullptr;
+        }
+
+        QPointer<QCheckBox> checkBox = new QCheckBox(q);
+        auto name = QString::fromStdString(boolAttributes.front()->displayName()).simplified();
+        checkBox->setObjectName(name);
+        auto tooltip = cleanDocumentation(boolAttributes.front()->documentation());
+        tooltip = tooltip.isEmpty() ? name : (name + "\n\n" + tooltip);
+        checkBox->setToolTip(tooltip);
+        checkBox->setToolTipDuration(-1);
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [checkBox, boolAttributes, updating]() {
+            if (!checkBox) {
+                return;
+            }
+            auto value = commonValue(boolAttributes);
+            *updating = true;
+            if (value) {
+                checkBox->setCheckState(
+                    *value ? Qt::CheckState::Checked : Qt::CheckState::Unchecked);
+            } else {
+                checkBox->setCheckState(Qt::CheckState::PartiallyChecked);
+            }
+            *updating = false;
+        };
+        updateUI();
+
+        QObject::connect(
+            checkBox,
+            &QCheckBox::clicked,
+            [itemPath, boolAttributes, updating, updateUI, attributeName](bool checked) {
+                if (*updating) {
+                    return;
+                }
+                applyChanges(itemPath, boolAttributes, attributeName, checked);
+                // The value set may not be the stronger opinion or the attribute could be
+                // uneditable...
+                updateUI();
+            });
+
+        observeAttributeValueChanged(selection, attributeName, updateUI);
+        return checkBox;
+    }
+
+    // -------------------------------------------------------------------------
+    // INT N (only Int and Int3 exist for attributes)
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kInt) {
+        return buildMultiSpinnerWidget<Ufe::AttributeInt, int, 1>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kInt3) {
+        return buildMultiSpinnerWidget<Ufe::AttributeInt3, int, 3>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+
+    // -------------------------------------------------------------------------
+    // FLOAT N
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kFloat) {
+        return buildMultiSpinnerWidget<Ufe::AttributeFloat, float, 1>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kFloat2) {
+        return buildMultiSpinnerWidget<Ufe::AttributeFloat2, float, 2>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kFloat3) {
+        return buildMultiSpinnerWidget<Ufe::AttributeFloat3, float, 3>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kFloat4) {
+        return buildMultiSpinnerWidget<Ufe::AttributeFloat4, float, 4>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+
+    // -------------------------------------------------------------------------
+    // DOUBLE N (only double and double3 exist for attribute types)
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kDouble) {
+        return buildMultiSpinnerWidget<Ufe::AttributeDouble, double, 1>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kDouble3) {
+        return buildMultiSpinnerWidget<Ufe::AttributeDouble3, double, 3>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+
+    // -------------------------------------------------------------------------
+    // COLOR N
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kColorFloat3) {
+        return buildMultiSpinnerWidget<Ufe::AttributeColorFloat3, float, 3>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+    if (type == Ufe::Attribute::kColorFloat4) {
+        return buildMultiSpinnerWidget<Ufe::AttributeColorFloat4, float, 4>(
+            attributes, attributeName, itemPath, selection, q);
+    }
+
+    // -------------------------------------------------------------------------
+    // String
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kString) {
+        auto stringAttributes = castAttributes<Ufe::AttributeString>(attributes);
+        if (stringAttributes.empty()) {
+            return nullptr;
+        }
+
+        QPointer<QLineEdit> lineEdit = new QLineEdit(q);
+
+        auto name = QString::fromStdString(stringAttributes.front()->displayName()).simplified();
+        lineEdit->setObjectName(name);
+        auto tooltip = cleanDocumentation(stringAttributes.front()->documentation());
+        tooltip = tooltip.isEmpty() ? name : (name + "\n\n" + tooltip);
+        lineEdit->setToolTip(tooltip);
+        lineEdit->setToolTipDuration(-1);
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [lineEdit, stringAttributes, updating]() {
+            if (!lineEdit) {
+                return;
+            }
+            auto value = commonValue(stringAttributes);
+            *updating = true;
+            if (value) {
+                lineEdit->setText(QString::fromStdString(*value));
+            } else {
+                lineEdit->setText("");
+            }
+            *updating = false;
+        };
+        updateUI();
+
+        QObject::connect(
+            lineEdit,
+            &QLineEdit::editingFinished,
+            [itemPath, lineEdit, stringAttributes, updating, updateUI, attributeName]() {
+                if (*updating || !lineEdit) {
+                    return;
+                }
+                auto value = lineEdit->text().toStdString();
+                auto prevValue = commonValue(stringAttributes);
+                if (prevValue && *prevValue == value) {
+                    return;
+                }
+                applyChanges(itemPath, stringAttributes, attributeName, value);
+                // The value set may not be the stronger opinion or the attribute could be
+                // uneditable...
+                updateUI();
+            });
+
+        observeAttributeValueChanged(selection, attributeName, updateUI);
+
+        return lineEdit;
+    }
+
+    // -------------------------------------------------------------------------
+    // Filename
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kFilename) {
+        auto filenameAttributes = castAttributes<Ufe::AttributeFilename>(attributes);
+        if (filenameAttributes.empty()) {
+            return nullptr;
+        }
+
+        QPointer<UfeUi::QFilenameEdit> filenameEdit = new UfeUi::QFilenameEdit(q);
+
+        auto name = QString::fromStdString(filenameAttributes.front()->displayName()).simplified();
+        filenameEdit->setObjectName(name);
+        auto tooltip = cleanDocumentation(filenameAttributes.front()->documentation());
+        tooltip = tooltip.isEmpty() ? name : (name + "\n\n" + tooltip);
+        filenameEdit->setToolTip(tooltip);
+        filenameEdit->setToolTipDuration(-1);
+
+        filenameEdit->setCaption(QApplication::translate("USDStageObject", "Choose %1").arg(name));
+        if (!selection.empty()) {
+            if (auto prim = selection.front()) {
+                const auto& primPath = prim->path();
+                if (primPath.nbSegments() > 1) {
+                    auto stagePath = primPath.head(1);
+
+                    if (auto stage = MaxUsd::ufe::getStage(stagePath)) {
+                        auto targetLayer = stage->GetEditTarget().GetLayer();
+                        if (!targetLayer->IsAnonymous()) {
+                            auto s = QString::fromStdString(targetLayer->GetRealPath());
+                            s = QFileInfo(s).absolutePath();
+                            filenameEdit->setInitialDirectory(s);
+                            filenameEdit->setBaseDirectory(s);
+                        }
+                    }
+                }
+            }
+        }
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [filenameEdit, filenameAttributes, updating]() {
+            if (!filenameEdit) {
+                return;
+            }
+            auto value = commonValue(filenameAttributes);
+            *updating = true;
+            if (value) {
+                filenameEdit->setFilename(QString::fromStdString(*value));
+            } else {
+                filenameEdit->setFilename("");
+            }
+            *updating = false;
+        };
+        updateUI();
+
+        QObject::connect(
+            filenameEdit,
+            &UfeUi::QFilenameEdit::filenameChanged,
+            [itemPath, filenameEdit, filenameAttributes, updating, updateUI, attributeName](
+                const QString& filename) {
+                if (*updating || !filenameEdit) {
+                    return;
+                }
+                auto value = filename.toStdString();
+                auto prevValue = commonValue(filenameAttributes);
+                if (prevValue && *prevValue == value) {
+                    return;
+                }
+                applyChanges(itemPath, filenameAttributes, attributeName, value);
+                // The value set may not be the stronger opinion or the attribute could be
+                // uneditable...
+                updateUI();
+            });
+
+        observeAttributeValueChanged(selection, attributeName, updateUI);
+
+        return filenameEdit;
+    }
+
+    // -------------------------------------------------------------------------
+    // Enum String
+    // -------------------------------------------------------------------------
+    if (type == Ufe::Attribute::kEnumString) {
+        auto enumAttributes = castAttributes<Ufe::AttributeEnumString>(attributes);
+        if (enumAttributes.empty()) {
+            return nullptr;
+        }
+
+        QPointer<QComboBox> comboBox = new QComboBox(q);
+        comboBox->setMinimumWidth(100);
+
+        auto name = QString::fromStdString(enumAttributes.front()->displayName()).simplified();
+        comboBox->setObjectName(name);
+        auto tooltip = cleanDocumentation(enumAttributes.front()->documentation());
+        tooltip = tooltip.isEmpty() ? name : (name + "\n\n" + tooltip);
+        comboBox->setToolTip(tooltip);
+        comboBox->setToolTipDuration(-1);
+
+        std::vector<std::string> commonOptions;
+        bool                     firstOne = true;
+        for (const auto& attr : enumAttributes) {
+            auto options = attr->getEnumValues();
+            if (firstOne) {
+                commonOptions = options;
+                firstOne = false;
+            } else {
+                // remove from common if not in ancestors
+                commonOptions.erase(
+                    std::remove_if(
+                        commonOptions.begin(),
+                        commonOptions.end(),
+                        [&options](const auto& it) {
+                            return std::find(options.begin(), options.end(), it) == options.end();
+                        }),
+                    commonOptions.end());
+            }
+        }
+
+        for (const auto s : commonOptions) {
+            comboBox->addItem(QString::fromStdString(s));
+        }
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [comboBox, enumAttributes, updating]() {
+            auto value = commonValue(enumAttributes);
+            *updating = true;
+            if (value) {
+                comboBox->setCurrentText(QString::fromStdString(*value));
+            } else {
+                comboBox->setCurrentIndex(-1);
+            }
+            *updating = false;
+        };
+        updateUI();
+
+        QObject::connect(
+            comboBox,
+            &QComboBox::currentTextChanged,
+            [itemPath, enumAttributes, updating, updateUI, attributeName](QString value) {
+                if (*updating) {
+                    return;
+                }
+                applyChanges(itemPath, enumAttributes, attributeName, value.toStdString());
+                // The value set may not be the stronger opinion or the attribute could be
+                // uneditable...
+                updateUI();
+            });
+
+        observeAttributeValueChanged(selection, attributeName, updateUI);
+
+        return comboBox;
+    }
+
+    if (type == Ufe::Attribute::kGeneric) {
+        auto genericAttributes = castAttributes<Ufe::AttributeGeneric>(attributes);
+        if (genericAttributes.empty()) {
+            return nullptr;
+        }
+
+        qDebug() << "Unknown type" << QString::fromStdString(type) << "for attribute"
+                 << QString::fromStdString(attributeName) << "native type"
+                 << QString::fromStdString(
+                        genericAttributes.front()
+                            ->nativeType()); // << "value" << genericAttributes.front()->string();
+    } else {
+        qDebug() << "Unknown type" << QString::fromStdString(type) << "for attribute"
+                 << QString::fromStdString(attributeName);
+    }
+
+    return nullptr;
+}
+
+QmaxUsdUfeAttributesWidget::QmaxUsdUfeAttributesWidget()
+    : QWidget(nullptr)
+    , d_ptr(new QmaxUsdUfeAttributesWidgetPrivate(this))
+{
+}
+
+QmaxUsdUfeAttributesWidget::~QmaxUsdUfeAttributesWidget() { }
+
+std::unique_ptr<QmaxUsdUfeAttributesWidget> QmaxUsdUfeAttributesWidget::create(
+    const Ufe::Selection&           selection,
+    const std::vector<std::string>& attributeNames,
+    std::set<std::string>&          handledAttributeNames)
+{
+    auto widget = std::make_unique<QmaxUsdUfeAttributesWidget>();
+    int  idx = 0;
+    // Create controls for the attributes
+
+    auto l = new QGridLayout(widget.get());
+    l->setColumnStretch(0, 1);
+    l->setColumnStretch(1, 2);
+
+    for (const auto& name : attributeNames) {
+        // Create a control for the attribute
+        if (auto control = widget->d_ptr->addControl(selection, name)) {
+            handledAttributeNames.insert(name);
+
+            auto label = new ElidedLabel(control->objectName());
+            label->setToolTip(control->toolTip());
+            label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+            // todo: fix ElidedLabel to BE an actual QLabel
+            // label->setBuddy(control);
+            // label->setWordWrap(true);
+            l->addWidget(label, idx, 0);
+            l->addWidget(control, idx++, 1);
+        }
+    }
+
+    if (idx == 0) {
+        widget.reset();
+    }
+    return widget;
+}
+
+std::unique_ptr<QmaxUsdUfeAttributesWidget> QmaxUsdUfeAttributesWidget::create(
+    const Ufe::Selection&  selection,
+    const TfType&          type,
+    std::set<std::string>& handledAttributeNames)
+{
+    if (selection.empty() || !type.IsA<UsdSchemaBase>()) {
+        return nullptr;
+    }
+
+    auto attributeNames = extractSchemaAttributeNames(type);
+    if (attributeNames.empty()) {
+        return nullptr;
+    }
+
+    auto widget = create(selection, attributeNames, handledAttributeNames);
+
+    if (widget) {
+        widget->setObjectName(QString::fromStdString(identifierOrTypeName(type)));
+    }
+    return std::move(widget);
+}
+
+std::unique_ptr<QmaxUsdUfeAttributesWidget> QmaxUsdUfeAttributesWidget::createMetaData(
+    const Ufe::Selection&        selection,
+    const std::set<std::string>& handledAttributeNames)
+{
+    if (selection.empty()) {
+        return nullptr;
+    }
+
+    auto widget = std::make_unique<QmaxUsdUfeAttributesWidget>();
+    int  idx = 0;
+    // Create controls for the attributes
+
+    auto l = new QGridLayout(widget.get());
+    l->setColumnStretch(0, 1);
+    l->setColumnStretch(1, 2);
+
+    bool                     isFirst = true;
+    std::vector<std::string> attributeNames;
+    for (const auto& item : selection) {
+        auto itemAttributes = Ufe::Attributes::attributes(item);
+        auto names = itemAttributes->attributeNames();
+        names.erase(
+            std::remove_if(
+                names.begin(),
+                names.end(),
+                [&handledAttributeNames](const auto name) {
+                    return handledAttributeNames.find(name) != handledAttributeNames.end();
+                }),
+            names.end());
+        if (isFirst) {
+            attributeNames.insert(attributeNames.end(), names.begin(), names.end());
+            isFirst = false;
+        } else {
+            attributeNames.erase(
+                std::remove_if(
+                    attributeNames.begin(),
+                    attributeNames.end(),
+                    [&names](const auto name) {
+                        return std::find(names.begin(), names.end(), name) == names.end();
+                    }),
+                attributeNames.end());
+            if (attributeNames.empty()) {
+                break;
+            }
+        }
+    }
+
+    Ufe::Path                                                   itemPath;
+    std::map<TfToken, std::vector<std::pair<UsdPrim, VtValue>>> combinedMetaData;
+    for (const auto& item : selection) {
+        auto prim = MaxUsd::ufe::ufePathToPrim(item->path());
+        if (!prim) {
+            continue;
+        }
+        // We use the first (non-empty) path of an item for the creation of
+        // the undo command, as all of our selected sub-objects are assumed
+        // to share the same edit target.
+        if (itemPath.empty()) {
+            itemPath = item->path();
+        }
+        auto metadata = prim.GetAllMetadata();
+        for (auto& m : metadata) {
+            combinedMetaData[m.first].emplace_back(std::make_pair(prim, m.second));
+        }
+    }
+
+    if (selection.size() > 1) {
+        for (auto it = combinedMetaData.begin(); it != combinedMetaData.end();) {
+            if (it->second.size() == selection.size()) // token present in all selections
+            {
+                ++it;
+            } else {
+                it = combinedMetaData.erase(it);
+            }
+        }
+    }
+
+    // -------------------------------------------------------------------------
+    // Prim Path(s)
+    // -------------------------------------------------------------------------
+    {
+        auto label = new ElidedLabel(QApplication::translate(
+            "USDStageObject", selection.size() == 1 ? "Prim Path" : "Prim Paths"));
+
+        auto textEdit = new QLineEdit();
+        textEdit->setReadOnly(true);
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+        l->addWidget(label, idx, 0);
+        l->addWidget(textEdit, idx++, 1);
+
+        QStringList paths;
+        for (const auto& item : selection) {
+            if (item) {
+                auto p = item->path().popHead();
+                paths.append(QString::fromStdString(p.string()));
+            }
+        }
+        textEdit->setText(paths.join(", "));
+        textEdit->setToolTip(paths.join("\n"));
+    }
+
+    std::vector<UsdPrim> prims;
+    for (const auto& item : selection) {
+        auto prim = MaxUsd::ufe::ufePathToPrim(item->path());
+        if (prim) {
+            prims.emplace_back(prim);
+        }
+    }
+
+    // -------------------------------------------------------------------------
+    // Kind combo box
+    // -------------------------------------------------------------------------
+    {
+        QPointer<QComboBox> comboBox = new QComboBox();
+        auto label = new ElidedLabel(QApplication::translate("USDStageObject", "Kind"));
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+        // We add the known Kind types, in a certain order("model hierarchy")
+        // and then any extra ones that were added by extending the kind
+        // registry.
+        // Note : we remove the "model" kind because in the USD docs it states,
+        // "No prim should have the exact kind " model ".
+
+        std::vector<TfToken> knownKinds = {
+            KindTokens->group, KindTokens->assembly, KindTokens->component, KindTokens->subcomponent
+        };
+
+        for (auto kind : KindRegistry::GetInstance().GetAllKinds()) {
+            if (kind == KindTokens->model) {
+                continue;
+            }
+            if (std::find(knownKinds.begin(), knownKinds.end(), kind) == knownKinds.end()) {
+                knownKinds.push_back(kind);
+            }
+        }
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [comboBox, prims, updating, knownKinds]() {
+            if (!comboBox) {
+                return;
+            }
+
+            std::set<TfToken> primKinds;
+            for (const auto& prim : prims) {
+                auto    model = UsdModelAPI(prim);
+                TfToken kind;
+#if PXR_VERSION >= 2311
+                if (prim.GetKind(&kind)) {
+                    primKinds.insert(kind);
+                }
+#else
+                if (!prim.IsPseudoRoot() && prim.GetPath() != SdfPath::AbsoluteRootPath()
+                    && prim.GetMetadata(SdfFieldKeys->Kind, &kind)) {
+                    primKinds.insert(kind);
+                }
+#endif
+                else {
+                    primKinds.insert(TfToken(""));
+                }
+            }
+
+            std::vector<TfToken> knownKindsCopy = knownKinds;
+            for (const auto& kind : primKinds) {
+                if (std::find(knownKindsCopy.begin(), knownKindsCopy.end(), kind)
+                    == knownKindsCopy.end()) {
+                    knownKindsCopy.push_back(kind);
+                }
+            }
+
+            if (std::find(knownKindsCopy.begin(), knownKindsCopy.end(), TfToken(""))
+                == knownKindsCopy.end()) {
+                knownKindsCopy.push_back(TfToken(""));
+            }
+
+            *updating = true;
+            comboBox->clear();
+            for (const auto& kind : knownKindsCopy) {
+                comboBox->addItem(QString::fromStdString(kind.GetString()));
+            }
+
+            if (primKinds.size() == 1) {
+                comboBox->setCurrentText(QString::fromStdString(primKinds.begin()->GetString()));
+            } else {
+                comboBox->setCurrentIndex(-1);
+            }
+            *updating = false;
+        };
+
+        QObject::connect(
+            comboBox,
+            &QComboBox::currentTextChanged,
+            [comboBox, updating, prims, itemPath, updateUI](QString value) {
+                if (*updating || !comboBox) {
+                    return;
+                }
+
+                std::vector<TfToken> kindsBefore;
+                for (const auto& prim : prims) {
+                    auto    model = UsdModelAPI(prim);
+                    TfToken kind;
+#if PXR_VERSION >= 2311
+                    if (prim.GetKind(&kind)) {
+                        kindsBefore.emplace_back(kind);
+                    }
+#else
+                    if (!prim.IsPseudoRoot() && prim.GetPath() != SdfPath::AbsoluteRootPath()
+                        && prim.GetMetadata(SdfFieldKeys->Kind, &kind)) {
+                        kindsBefore.emplace_back(kind);
+                    }
+#endif
+                    else {
+                        kindsBefore.emplace_back("");
+                    }
+                }
+
+                const std::string commandName
+                    = QApplication::translate("USDStageObject", "Change Kind of USD prim")
+                          .toStdString();
+
+                TfToken newKind(value.toStdString());
+                applyChanges(
+                    itemPath,
+                    [prims, newKind, kindsBefore](UfeUI::GenericCommand::Mode mode) {
+                        int i = 0;
+                        for (const auto& prim : prims) {
+                            if (prim) {
+#if PXR_VERSION >= 2311
+                                prim.SetKind(
+                                    mode == UfeUI::GenericCommand::Mode::kRedo ? newKind
+                                                                               : kindsBefore[i]);
+#else
+                                prim.SetMetadata(
+                                    SdfFieldKeys->Kind,
+                                    mode == UfeUI::GenericCommand::Mode::kUndo ? kindsBefore[i]
+                                                                               : newKind);
+#endif
+                            }
+                            ++i;
+                        }
+                    },
+                    commandName);
+
+                // We need to query the kind value again, as "someone may have a
+                // stronger opinion.."
+                updateUI();
+            });
+
+        widget->d_ptr->observeSceneSubtreeInvalidate(selection, updateUI);
+        updateUI();
+
+        l->addWidget(label, idx, 0);
+        l->addWidget(comboBox, idx++, 1);
+    }
+
+    // -------------------------------------------------------------------------
+    // Active check box
+    // -------------------------------------------------------------------------
+    {
+        QPointer<QCheckBox> checkBox = new QCheckBox();
+        auto label = new ElidedLabel(QApplication::translate("USDStageObject", "Active"));
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [checkBox, prims, updating]() {
+            if (!checkBox) {
+                return;
+            }
+
+            std::unique_ptr<bool> active;
+            bool                  first = true;
+            for (const auto& prim : prims) {
+                bool primActive = prim.IsActive();
+                if (first) {
+                    active = std::make_unique<bool>(primActive);
+                    first = false;
+                } else {
+                    if (active && *active != primActive) {
+                        active.reset();
+                        break;
+                    }
+                }
+            }
+
+            *updating = true;
+            if (active) {
+                checkBox->setCheckState(*active ? Qt::Checked : Qt::Unchecked);
+            } else {
+                checkBox->setCheckState(Qt::PartiallyChecked);
+            }
+            *updating = false;
+        };
+
+        QObject::connect(
+            checkBox, &QCheckBox::clicked, [itemPath, prims, updating, updateUI](bool checked) {
+                if (*updating || prims.empty()) {
+                    return;
+                }
+
+                std::vector<bool> activeBefore;
+                for (const auto& prim : prims) {
+                    activeBefore.emplace_back(prim ? prim.IsActive() : false);
+                }
+
+                const std::string commandName
+                    = QApplication::translate(
+                          "USDStageObject", checked ? "Activate USD prim" : "Deactivate USD prim")
+                          .toStdString();
+                applyChanges(
+                    itemPath,
+                    [prims, checked, activeBefore](UfeUI::GenericCommand::Mode mode) {
+                        int i = 0;
+                        for (const auto& prim : prims) {
+                            if (prim) {
+                                prim.SetActive(
+                                    mode == UfeUI::GenericCommand::Mode::kRedo ? checked
+                                                                               : activeBefore[i]);
+                            }
+                            ++i;
+                        }
+                    },
+                    commandName);
+
+                // We need to query the active value again, as "someone may have a
+                // stronger opinion.."
+                updateUI();
+            });
+
+        widget->d_ptr->observeSceneObjectAddOrRemoved(selection, updateUI);
+        updateUI();
+
+        l->addWidget(label, idx, 0);
+        l->addWidget(checkBox, idx++, 1);
+    }
+
+    // -------------------------------------------------------------------------
+    // Instanceable
+    // -------------------------------------------------------------------------
+    {
+        QPointer<QCheckBox> checkBox = new QCheckBox();
+        auto label = new ElidedLabel(QApplication::translate("USDStageObject", "Instanceable"));
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+        std::shared_ptr<bool> updating = std::make_shared<bool>(false);
+
+        auto updateUI = [checkBox, prims, updating]() {
+            if (!checkBox) {
+                return;
+            }
+
+            std::unique_ptr<bool> instanceable;
+            bool                  first = true;
+            for (const auto& prim : prims) {
+                if (!prim) {
+                    continue;
+                }
+                bool primInstanceable = prim.IsInstanceable();
+                if (first) {
+                    instanceable = std::make_unique<bool>(primInstanceable);
+                    first = false;
+                } else {
+                    if (instanceable && *instanceable != primInstanceable) {
+                        instanceable.reset();
+                        break;
+                    }
+                }
+            }
+
+            *updating = true;
+            if (instanceable) {
+                checkBox->setCheckState(*instanceable ? Qt::Checked : Qt::Unchecked);
+            } else {
+                checkBox->setCheckState(Qt::PartiallyChecked);
+            }
+            *updating = false;
+        };
+
+        QObject::connect(
+            checkBox, &QCheckBox::clicked, [itemPath, prims, updating, updateUI](bool checked) {
+                if (*updating) {
+                    return;
+                }
+
+                std::vector<bool> instanceableBefore;
+                for (const auto& prim : prims) {
+                    instanceableBefore.emplace_back(prim ? prim.IsInstanceable() : false);
+                }
+
+                const std::string commandName = QApplication::translate(
+                                                    "USDStageObject",
+                                                    checked ? "Mark USD prim as Instanceable"
+                                                            : "Unmark USD prim as Instanceable")
+                                                    .toStdString();
+                applyChanges(
+                    itemPath,
+                    [prims, checked, instanceableBefore](UfeUI::GenericCommand::Mode mode) {
+                        int i = 0;
+                        for (const auto& prim : prims) {
+                            if (prim) {
+                                prim.SetInstanceable(
+                                    mode == UfeUI::GenericCommand::Mode::kRedo
+                                        ? checked
+                                        : instanceableBefore[i]);
+                            }
+                            ++i;
+                        }
+                    },
+                    commandName);
+
+                // We need to query the active value again, as "someone may have a
+                // stronger opinion.."
+                updateUI();
+            });
+
+        widget->d_ptr->observeSceneSubtreeInvalidate(selection, updateUI);
+        updateUI();
+
+        l->addWidget(label, idx, 0);
+        l->addWidget(checkBox, idx++, 1);
+    }
+
+    for (const auto& meta : combinedMetaData) {
+        auto& name = meta.first;
+        if (name == SdfFieldKeys->Active || name == SdfFieldKeys->Kind
+            || name == SdfFieldKeys->Instanceable) {
+            continue;
+        }
+
+        // Create a control for the attribute
+        if (auto control = widget->d_ptr->addControl(selection, name)) {
+            auto label = new ElidedLabel(control->objectName());
+            label->setToolTip(control->toolTip());
+            label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+            l->addWidget(label, idx, 0);
+            l->addWidget(control, idx++, 1);
+        }
+    }
+
+    // TBD: what shall we do with custom attributes ???
+    // for (const auto& name : attributeNames)
+    //{
+    //	if (name == SdfFieldKeys->Active || name == SdfFieldKeys->Kind)
+    //	{
+    //		continue;
+    //	}
+
+    //	// Create a control for the attribute
+    //	if (auto control = widget->d_ptr->addControl(selection, name))
+    //	{
+    //		auto label = new QLabel(control->objectName());
+    //		label->setToolTip(control->toolTip());
+    //		label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+    //		label->setBuddy(control);
+    //		l->addWidget(label, idx, 0);
+    //		l->addWidget(control, idx++, 1);
+    //	}
+    //}
+
+    widget->setObjectName(QApplication::translate("USDStageObject", "Metadata"));
+    return widget;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.h b/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.h
new file mode 100644
index 0000000..a8752fe
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.h
@@ -0,0 +1,89 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <pxr/base/tf/type.h>
+#include <pxr/usd/usd/prim.h>
+
+#include <ufe/selection.h>
+
+#include <MaxUsd.h>
+#include <QtWidgets/qwidget.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+class QmaxUsdUfeAttributesWidgetPrivate;
+class QmaxUsdUfeAttributesWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    QmaxUsdUfeAttributesWidget();
+    ~QmaxUsdUfeAttributesWidget() override;
+
+    /** Create a new QmaxUsdUfeAttributesWidget containing controls for the
+     * supported attributes of the USD schema definition of the given type, or a
+     * nullptr, if no supported attribute is present.
+     * \param selection The UFE selection to create the widget for.
+     * \param type The USD schema type to create the widget for.
+     * \param handledAttributeNames A set of attribute names. The functions will
+     *        insert all the names of attributes that are handled by the widget.
+     * \return A new QmaxUsdUfeAttributesWidget, or nullptr (of no supported
+     * attributes were found as part of this type). The returned widget is
+     * already bound to the the UFE attributes of the individual objects in the
+     * given selection.
+     * The object name of the widget can be used as a rollup title. */
+    static std::unique_ptr<QmaxUsdUfeAttributesWidget> create(
+        const Ufe::Selection&  selection,
+        const pxr::TfType&     type,
+        std::set<std::string>& handledAttributeNames);
+
+    /** Create a new QmaxUsdUfeAttributesWidget containing controls for the
+     * attributes passed in, or nullptr, if no supported attributes are given.
+     * \param selection The UFE selection to create the widget for.
+     * \param attributeNames The names of the attributes to create the widget for.
+     * \param handledAttributeNames A set of attribute names. The functions will
+     *        insert all the names of attributes that are handled by the widget.
+     * \return A new QmaxUsdUfeAttributesWidget, or nullptr (of no supported
+     * attributes were found as part of this type). The returned widget is
+     * already bound to the the UFE attributes of the individual objects in the
+     * given selection. */
+    static std::unique_ptr<QmaxUsdUfeAttributesWidget> create(
+        const Ufe::Selection&     selection,
+        const std::vector<std::string>& attributeNames,
+        std::set<std::string>&    handledAttributeNames);
+
+    /** Create a new QmaxUsdUfeAttributesWidget containing some common controls
+     * as well as controls for the supported attributes that are not already
+     * handled by other USD Schema definitions.
+     * \param selection The UFE selection to create the widget for.
+     * \param handledAttributeNames A set of attribute names that already is
+     *        handled by other rollups.
+     * \return A new QmaxUsdUfeAttributesWidget. The returned widget is already
+     * bound to the the UFE attributes of the individual objects in the given
+     * selection.
+     * The object name of the widget can be used as a rollup title. */
+    static std::unique_ptr<QmaxUsdUfeAttributesWidget> createMetaData(
+        const Ufe::Selection&        selection,
+        const std::set<std::string>& handledAttributeNames);
+
+private:
+    const std::unique_ptr<QmaxUsdUfeAttributesWidgetPrivate> d_ptr;
+    Q_DECLARE_PRIVATE(QmaxUsdUfeAttributesWidget);
+};
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.cpp b/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.cpp
new file mode 100644
index 0000000..49a3453
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "StageObjectMap.h"
+
+#include "UfeUtils.h"
+
+StageObjectMap StageObjectMap::instance;
+
+void StageObjectMap::Set(USDStageObject* object)
+{
+    const auto path = MaxUsd::ufe::getUsdStageObjectPath(object);
+    pathToObject[path] = object;
+    stageToObject[object->GetUSDStage()] = object;
+}
+
+void StageObjectMap::Remove(USDStageObject* object)
+{
+    pathToObject.erase(MaxUsd::ufe::getUsdStageObjectPath(object));
+    stageToObject.erase(object->GetUSDStage());
+}
+
+USDStageObject* StageObjectMap::Get(const Ufe::Path& path)
+{
+    const auto it = pathToObject.find(path);
+    if (it == pathToObject.end()) {
+        return nullptr;
+    }
+    return it->second;
+}
+
+USDStageObject* StageObjectMap::Get(const pxr::UsdStageWeakPtr& stage)
+{
+    const auto it = stageToObject.find(stage);
+    if (it == stageToObject.end()) {
+        return nullptr;
+    }
+    return it->second;
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.h b/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.h
new file mode 100644
index 0000000..7efb222
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/StageObjectMap.h
@@ -0,0 +1,64 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <ufe/path.h>
+
+//! Global registry mapping USDStage objects to their path in UFE, their stage, and back.
+class StageObjectMap
+{
+public:
+    /**
+     * \brief Sets a new object in the map.
+     * \param object the USD Stage object to add.
+     */
+    void Set(USDStageObject* object);
+
+    /**
+     * \brief Remove a USD Stage object from the map.
+     * \param object The USD Stage object to remove.
+     */
+    void Remove(USDStageObject* object);
+
+    /**
+     * \brief Returns the USD Stage object at the given UFE path.
+     * \param path The UFE path of the object to get.
+     * \return The USDStageObject.
+     */
+    USDStageObject* Get(const Ufe::Path& path);
+
+    /**
+     * \brief Returns a USD Stage object from the stage pointer.
+     * \param stage The stage to get the object from.
+     * \return The USDStageObject.
+     */
+    USDStageObject* Get(const pxr::UsdStageWeakPtr& stage);
+
+    /**
+     * \brief Get the global instance of the map.
+     * \return The instance.
+     */
+    static StageObjectMap* GetInstance() { return &instance; }
+
+private:
+    //! Global instance
+    static StageObjectMap instance;
+
+    std::unordered_map<Ufe::Path, USDStageObject*>                     pathToObject;
+    pxr::TfHashMap<pxr::UsdStageWeakPtr, USDStageObject*, pxr::TfHash> stageToObject;
+};
diff --git a/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.cpp b/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.cpp
new file mode 100644
index 0000000..cc99946
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.cpp
@@ -0,0 +1,237 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UfeUtils.h"
+
+#include "MaxUfeUndoableCommandMgr.h"
+#include "MaxUsdContextOpsHandler.h"
+#include "MaxUsdEditCommand.h"
+#include "MaxUsdHierarchyHandler.h"
+#include "MaxUsdObject3dHandler.h"
+#include "MaxUsdStagesSubject.h"
+#include "MaxUsdUIInfoHandler.h"
+#include "StageObjectMap.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <UFEUI/editCommand.h>
+#include <UFEUI/utils.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <usdUfe/ufe/Global.h>
+#include <usdUfe/undo/UsdUndoManager.h>
+#include <usdUfe/utils/loadRules.h>
+
+#include <ufe/globalSelection.h>
+#include <ufe/observableSelection.h>
+#include <ufe/pathString.h>
+#include <ufe/runTimeMgr.h>
+
+#include <MaxUsd.h>
+#include <max.h>
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+static const char usdSeparator = '/';
+
+void initialize()
+{
+    UsdUfe::Handlers handlers;
+
+    // Initialize the usdUfe runtime with the functions it needs, and a derived stage subject.
+    UsdUfe::DCCFunctions functions;
+    functions.stageAccessorFn = MaxUsd::ufe::getStage;
+    functions.stagePathAccessorFn = MaxUsd::ufe::getStagePath;
+    functions.ufePathToPrimFn = MaxUsd::ufe::ufePathToPrim;
+    functions.timeAccessorFn = MaxUsd::ufe::getTime;
+    functions.saveStageLoadRulesFn = MaxUsd::ufe::saveStageLoadRules;
+    functions.isRootChildFn = MaxUsd::ufe::isRootChild;
+    // Initialize the global UFE selection.
+    Ufe::GlobalSelection::initializeInstance(std::make_shared<Ufe::ObservableSelection>());
+
+    static MaxUsdStagesSubject::Ptr stagesSubject = MaxUsdStagesSubject::create();
+    const auto usdRtId = UsdUfe::initialize(functions, handlers, stagesSubject);
+    Ufe::PathString::registerPathComponentSeparator(usdRtId, usdSeparator);
+
+    // Setup Max specific USD UFE implementations.
+
+    // UI Info handler.
+    const auto uiHandler = MaxUsd::ufe::MaxUsdUIInfoHandler::create();
+    Ufe::RunTimeMgr::instance().setUIInfoHandler(usdRtId, uiHandler);
+    // Object3d.
+    const auto object3dHandler = MaxUsd::ufe::MaxUsdObject3dHandler::create();
+    Ufe::RunTimeMgr::instance().setObject3dHandler(usdRtId, object3dHandler);
+    // Hierarchy.
+    const auto hierarchyHandler = MaxUsd::ufe::MaxUsdHierarchyHandler::create();
+    Ufe::RunTimeMgr::instance().setHierarchyHandler(usdRtId, hierarchyHandler);
+    // Context ops.
+    const auto contextOpsHandler = MaxUsd::ufe::MaxUsdContextOpsHandler::create();
+    Ufe::RunTimeMgr::instance().setContextOpsHandler(usdRtId, contextOpsHandler);
+
+    // To catch scene notifications (objects added, removed, etc.) we need to subclass Ufe::Scene,
+    // and tell Ufe to use an instance of this object.
+    class MaxScene : public Ufe::Scene
+    {
+    };
+    Ufe::Scene::initializeInstance(std::make_shared<MaxScene>());
+
+    // Setup a 3dsmax specific command manager. To push UFE commands to the max
+    // undo stack.
+    Ufe::UndoableCommandMgr::initializeInstance(std::make_shared<MaxUfeUndoableCommandMgr>());
+
+    // Setup edit commands. These wrap Ufe::UndoableCommand commands,
+    // temporarily setting the target layer and triggering viewport redraws.
+    auto create = [](const Ufe::Path&                 path,
+                     const Ufe::UndoableCommand::Ptr& cmd,
+                     const std::string&               cmdString) {
+        return std::make_shared<MaxUsdEditCommand>(path, cmd, cmdString);
+    };
+    UfeUi::EditCommand::initializeCreator(create);
+
+    // Configure DPI scaling for UFE widgets.
+    UfeUi::Utils::setDpiScale(double(MaxSDK::GetUIScaleFactor()));
+}
+
+void finalize()
+{
+    Ufe::GlobalSelection::initializeInstance(nullptr);
+    UsdUfe::finalize(true);
+}
+
+//------------------------------------------------------------------------------
+// Utility Functions
+//------------------------------------------------------------------------------
+//
+pxr::UsdStageWeakPtr getStage(const Ufe::Path& path)
+{
+    const auto usdStageObject = StageObjectMap::GetInstance()->Get(path);
+    if (!usdStageObject) {
+        return nullptr;
+    }
+    return usdStageObject->GetUSDStage();
+}
+
+Ufe::Path getStagePath(pxr::UsdStageWeakPtr stage)
+{
+    const auto object = StageObjectMap::GetInstance()->Get(stage);
+    if (!object) {
+        return Ufe::Path {};
+    }
+    return getUsdStageObjectPath(object);
+}
+
+pxr::UsdPrim ufePathToPrim(const Ufe::Path& path)
+{
+    // The first segment should map to a USDStageObject.
+    // The path should generally look like this : /{Stage object GUID}/{usd path}
+    // For point instances, the path looks like : /{Stage object GUID}/{usd path}/{instanceIdx}
+    // If we just have the first segment, map to the usd pseudo-root prim.
+    // More than 3 segments is not a legal path.
+    const auto& segments = path.getSegments();
+    if (segments.empty() || segments[0].empty() || segments.size() > 3) {
+        return pxr::UsdPrim {};
+    }
+
+    // Find the Stage Object from the path, the object path is the first segment.
+    const auto objectPath = Ufe::Path({ segments[0] });
+    const auto object = StageObjectMap::GetInstance()->Get(objectPath);
+    if (!object) {
+        return pxr::UsdPrim {};
+    }
+
+    const pxr::UsdStageRefPtr stage = object->GetUSDStage();
+    if (!stage) {
+        return pxr::UsdPrim {};
+    }
+
+    if (segments.size() == 1u) {
+        return stage->GetPseudoRoot();
+    }
+
+    // The USD path, is contained in the second segment.
+    return stage->GetPrimAtPath(pxr::SdfPath(segments[1].string()));
+}
+
+Ufe::Path getUsdStageObjectPath(const USDStageObject* object)
+{
+    // Use the GUID of the stage object, to build the first segment.
+    const auto stageObjectSegment
+        = Ufe::PathSegment(object->GetGuid(), UsdUfe::getUsdRunTimeId(), usdSeparator);
+    return Ufe::Path({ stageObjectSegment });
+}
+
+Ufe::Path getUsdPrimUfePath(USDStageObject* object, const pxr::SdfPath& primPath, int instanceIdx)
+{
+    const auto stage = object->GetUSDStage();
+    if (!stage) {
+        return {};
+    }
+    if (!stage->GetPrimAtPath(primPath).IsValid()) {
+        return {};
+    }
+    const auto base = getUsdStageObjectPath(object);
+    if (primPath.IsEmpty() || primPath.IsAbsoluteRootPath()) {
+        return base;
+    }
+    auto segments = base.getSegments();
+    segments.push_back(
+        Ufe::PathSegment { primPath.GetString(), UsdUfe::getUsdRunTimeId(), usdSeparator });
+
+    if (instanceIdx >= 0) {
+        segments.push_back(Ufe::PathSegment {
+            std::to_string(instanceIdx), UsdUfe::getUsdRunTimeId(), usdSeparator });
+    }
+    return Ufe::Path { segments };
+}
+
+bool isPointInstance(const Ufe::SceneItemPtr& item)
+{
+    const UsdUfe::UsdSceneItem::Ptr usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+    return usdItem && usdItem->isPointInstance();
+}
+
+pxr::UsdTimeCode getTime(const Ufe::Path& path)
+{
+    const auto frame = GetCOREInterface()->GetTime() / double(GetTicksPerFrame());
+    // If this path can resolve to a prim in a stage, consider the stage FPS/max FPS.
+    const auto prim = ufePathToPrim(path);
+    if (prim.IsValid()) {
+        MaxUsd::GetUsdTimeCodeFromMaxFrame(prim.GetStage(), frame);
+    }
+    // Best effort.
+    return pxr::UsdTimeCode { frame };
+}
+
+void saveStageLoadRules(const PXR_NS::UsdStageRefPtr& stage)
+{
+    const auto usdStageObject = StageObjectMap::GetInstance()->Get(stage);
+    if (!usdStageObject) {
+        return;
+    }
+    return usdStageObject->SaveStageLoadRules();
+}
+
+bool isRootChild(const Ufe::Path& path)
+{
+    // When we have a single segment, it's the path of the Stage Object,
+    // which will map to the USD pseudo-root. Building the hierarchy will
+    // be handled by MaxUsdRootChildHierarchy.
+    return path.nbSegments() == 1;
+}
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.h b/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.h
new file mode 100644
index 0000000..fa3f5a5
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/UfeUtils.h
@@ -0,0 +1,68 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/MaxUsdObjectsAPI.h>
+
+#include <ufe/path.h>
+#include <ufe/sceneItem.h>
+
+#include <MaxUsd.h>
+
+class USDStageObject;
+
+namespace MAXUSD_NS_DEF {
+namespace ufe {
+
+//! Initializes the usdUfe library (setup some function pointers and global objects).
+void initialize();
+
+//! Finalize the usdUfe library (releases some resources).
+void finalize();
+
+//! Get USD stage corresponding to argument UFE path.
+MaxUSDObjectsAPI pxr::UsdStageWeakPtr getStage(const Ufe::Path& path);
+
+//! Get the full UFE path for a stage (with two segments, a 3dsMax segment a and USD segment).
+MaxUSDObjectsAPI Ufe::Path getStagePath(pxr::UsdStageWeakPtr stage);
+
+//! Return the USD prim corresponding to the argument UFE path.
+MaxUSDObjectsAPI pxr::UsdPrim ufePathToPrim(const Ufe::Path& path);
+
+//! Get the UFE path from a USD stage object.
+MaxUSDObjectsAPI Ufe::Path getUsdStageObjectPath(const USDStageObject* object);
+
+//! Get the UFE path associated with a USD prim or point instance in a given USDStageObject.
+MaxUSDObjectsAPI Ufe::Path
+getUsdPrimUfePath(USDStageObject* object, const pxr::SdfPath& primPath, int instanceIdx = -1);
+
+//! Returns true if the path points to a point instance
+MaxUSDObjectsAPI bool isPointInstance(const Ufe::SceneItem::Ptr& path);
+
+//! Get the time for a UFE Path, this is a requirement from usdUfe. For now it will
+//! just return the current time in UsdTime codes.
+MaxUSDObjectsAPI pxr::UsdTimeCode getTime(const Ufe::Path&);
+
+//! Save the load rules so that switching the stage settings will
+//! be able to preserve the load rules. Called when loading/unloading a payload.
+MaxUSDObjectsAPI void saveStageLoadRules(const PXR_NS::UsdStageRefPtr&);
+
+//! Max specific implementation for UsdUfe::DCCFunctions::isRootChildFn. Returns true
+//! if a single segment, which means we are at the stage object path / pseudo-root.
+MaxUSDObjectsAPI bool isRootChild(const Ufe::Path&);
+
+} // namespace ufe
+} // namespace MAXUSD_NS_DEF
diff --git a/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.cpp b/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.cpp
new file mode 100644
index 0000000..8390b21
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.cpp
@@ -0,0 +1,83 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "UsdTreeColumns.h"
+
+#include "UfeUtils.h"
+
+#include <UFEUI/treeItem.h>
+
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usdGeom/imageable.h>
+
+QVariant PurposeColumn::columnHeader(int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return QObject::tr("Purpose");
+    }
+    if (role == Qt::ToolTipRole) {
+        return QObject::tr(
+            "Purpose indicates render visibility intention. Blank/Default = no special purpose, "
+            "Guide = helpers, Proxy = stand-ins, Render = final render quality.");
+    }
+    return {};
+}
+
+QVariant PurposeColumn::data(const UfeUi::TreeItem* item, int role) const
+{
+    if (role == Qt::DisplayRole) {
+        const auto sceneItem = item->sceneItem();
+        if (sceneItem) {
+            const auto prim = MaxUsd::ufe::ufePathToPrim(sceneItem->path());
+
+            if (prim.IsA<pxr::UsdGeomImageable>()) {
+                const auto   purposeAttr = pxr::UsdGeomImageable(prim).GetPurposeAttr();
+                pxr::TfToken purpose;
+                purposeAttr.Get(&purpose);
+                // The prim's cell is Blank when it has a default purpose
+                return purpose == "default" ? QString()
+                                            : QString::fromStdString(purpose.GetString());
+            }
+        }
+    }
+    return {};
+}
+
+QVariant KindColumn::columnHeader(int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return QObject::tr("Kind");
+    }
+    if (role == Qt::ToolTipRole) {
+        return QObject::tr("Kind shows the prim category in a model hierarchy.");
+    }
+    return {};
+}
+
+QVariant KindColumn::data(const UfeUi::TreeItem* item, int role) const
+{
+    if (role == Qt::DisplayRole) {
+        const auto sceneItem = item->sceneItem();
+        if (sceneItem) {
+            const auto   prim = MaxUsd::ufe::ufePathToPrim(sceneItem->path());
+            pxr::TfToken kind;
+            if (pxr::UsdModelAPI(prim).GetKind(&kind)) {
+                return QString::fromStdString(kind.GetString());
+            }
+        }
+    }
+    return {};
+}
diff --git a/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.h b/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.h
new file mode 100644
index 0000000..9e4ca48
--- /dev/null
+++ b/src/MaxUsdObjects/MaxUsdUfe/UsdTreeColumns.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <UFEUI/treeColumn.h>
+
+namespace UfeUi {
+class TreeItem;
+}
+
+class PurposeColumn : public UfeUi::TreeColumn
+{
+public:
+    using TreeColumn::TreeColumn;
+
+    QVariant columnHeader(int role) const override;
+
+    QVariant data(const UfeUi::TreeItem* item, int role) const override;
+};
+
+class KindColumn : public UfeUi::TreeColumn
+{
+public:
+    using TreeColumn::TreeColumn;
+
+    QVariant columnHeader(int role) const override;
+
+    QVariant data(const UfeUi::TreeItem* item, int role) const override;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.cpp b/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.cpp
new file mode 100644
index 0000000..8894ca5
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CreateAtPosition.h"
+
+#include <snap.h>
+
+int CreateAtPosition::proc(ViewExp* vpt, int msg, int point, int flags, IPoint2 m, Matrix3& mat)
+{
+    switch (msg) { // Handle geometry positioning
+    case MOUSE_POINT: {
+        switch (point) {
+        case 0: { // first click
+            Point3 tx = vpt->SnapPoint(m, m, nullptr, SNAP_IN_3D);
+            mat.SetTrans(tx);
+            return CREATE_STOP;
+        }
+        default: return CREATE_ABORT;
+        }
+    }
+    case MOUSE_MOVE: {
+        switch (point) {
+        case 0: {
+
+            Point3 tx = vpt->SnapPoint(m, m, nullptr, SNAP_IN_3D);
+            mat.SetTrans(tx);
+        }
+        }
+        break;
+    }
+    case MOUSE_ABORT: {
+        return CREATE_ABORT;
+    }
+    default: break;
+    }
+    return CREATE_CONTINUE;
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.h b/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.h
new file mode 100644
index 0000000..d47ccaa
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/CreateCallbacks/CreateAtPosition.h
@@ -0,0 +1,25 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <maxapi.h>
+#include <mouseman.h>
+
+class CreateAtPosition : public CreateMouseCallBack
+{
+public:
+    int proc(ViewExp* vpt, int msg, int point, int flags, IPoint2 m, Matrix3& mat) override;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/SubobjectManips.cpp b/src/MaxUsdObjects/Objects/SubobjectManips.cpp
new file mode 100644
index 0000000..aa1b7c7
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/SubobjectManips.cpp
@@ -0,0 +1,321 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "SubobjectManips.h"
+
+#include <MaxUsdObjects/MaxUsdUfe/MaxUsdEditCommand.h>
+#include <MaxUsdObjects/MaxUsdUfe/StageObjectMap.h>
+
+#include <UFEUI/genericCommand.h>
+
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+XformableManip::XformableManip(
+    const pxr::UsdGeomXformable& xformable,
+    const pxr::UsdTimeCode&      timeCode)
+{
+    this->xformable = xformable;
+    // The first thing we need to do is find a xformOp on the xformable prim that we can edit.
+    // The op needs to be at the back of the ordered ops, as the "most local" transform.
+    // If we dont find a suitable transform op there, we append our own.
+    pxr::UsdGeomXformOp transformOp;
+    bool                resetStack = false;
+    auto                xformOps = xformable.GetOrderedXformOps(&resetStack);
+    if (!xformOps.empty() && xformOps.back().GetOpType() == pxr::UsdGeomXformOp::TypeTransform) {
+        transformOp = xformOps.back();
+    } else {
+        // Make sure the xform op full name is unique, add a suffix if need be.
+        pxr::TfToken suffix = {};
+        auto         nextCandidateName
+            = pxr::UsdGeomXformOp::GetOpName(pxr::UsdGeomXformOp::TypeTransform, suffix);
+        int count = 1;
+        while (std::find_if(
+                   xformOps.begin(),
+                   xformOps.end(),
+                   [&suffix, &nextCandidateName](const pxr::UsdGeomXformOp& op) {
+                       return op.GetName() == nextCandidateName;
+                       ;
+                   })
+               != xformOps.end()) {
+            suffix = pxr::TfToken("t" + std::to_string(count));
+            nextCandidateName
+                = pxr::UsdGeomXformOp::GetOpName(pxr::UsdGeomXformOp::TypeTransform, suffix);
+            count++;
+        }
+        transformOp = xformable.AddTransformOp(pxr::UsdGeomXformOp::PrecisionDouble, suffix);
+        if (transformOp) {
+            // Make sure the transform is the identity (transform could already exist even if not on
+            // the stack).
+            pxr::GfMatrix4d identity;
+            identity.SetIdentity();
+            transformOp.Set(identity);
+        }
+    }
+
+    if (!transformOp.IsDefined()) {
+        return;
+    }
+
+    pxr::GfMatrix4d currentEditOpMatrix;
+    if (!transformOp.Get(&currentEditOpMatrix, timeCode)) {
+        currentEditOpMatrix.SetIdentity();
+    }
+
+    xformOp = transformOp;
+    initOpMatrix = currentEditOpMatrix;
+    pivot = MaxUsd::GetPivotTransform(xformable, timeCode);
+    initUsdWorldMatrix
+        = pxr::UsdGeomImageable(xformable.GetPrim()).ComputeLocalToWorldTransform(timeCode);
+    this->timeCode = timeCode;
+}
+
+void XformableManip::TransformInteractive(
+    const pxr::GfMatrix4d& stageUnitAxis,
+    const Matrix3&         partm,
+    const Matrix3&         tmAxis,
+    const Matrix3&         transform) const
+{
+    if (!xformOp.IsDefined()) {
+        return;
+    }
+
+    const auto stageObject = StageObjectMap::GetInstance()->Get(xformable.GetPrim().GetStage());
+
+    // A Pivot may be defined in the xformOp stack that we should use, however, in case of multiple
+    // selection, we need to offset that pivot so that all selected object rotate around the same
+    // point. In case of single selection, the pivotOffset here will evaluate to (0,0,0).
+    const auto fullTransform = GetPivot() * initUsdWorldMatrix
+        * stageObject->GetStageRootTransform() * MaxUsd::ToUsd(partm);
+    const auto pivotOffset = MaxUsd::ToUsd(tmAxis.GetTrans()) - fullTransform.ExtractTranslation();
+    auto       axis = tmAxis;
+    axis.SetTrans(MaxUsd::ToMax(pivotOffset));
+
+    auto worldRotAndScale = initUsdWorldMatrix * stageUnitAxis * MaxUsd::ToUsd(partm);
+    worldRotAndScale.SetTranslateOnly({});
+
+    auto usdMat = worldRotAndScale * MaxUsd::ToUsd(Inverse(axis)) * MaxUsd::ToUsd(transform)
+        * MaxUsd::ToUsd(axis) * worldRotAndScale.GetInverse();
+
+    auto newTransform = pivot.GetInverse() * usdMat * pivot * initOpMatrix;
+
+    xformOp.Set(newTransform, pxr::UsdTimeCode::Default());
+}
+
+Ufe::UndoableCommand::Ptr XformableManip::BuildTransformCmd() const
+{
+    if (!xformOp.IsDefined()) {
+        return nullptr;
+    }
+
+    // Our new transform is already set at the time we are editing at, however, set it again through
+    // a command so that the entire transform can be undone. The value isn't really changing here,
+    // so we aren't actually dirtying anything.
+    pxr::GfMatrix4d newTransform;
+    xformOp.Get(&newTransform, timeCode);
+    auto callback = [xformOp = xformOp, initialMatrix = initOpMatrix, newTransform](
+                        UfeUI::GenericCommand::Mode mode) {
+        if (mode == UfeUI::GenericCommand::Mode::kUndo) {
+            xformOp.Set(initialMatrix);
+
+        } else if (mode == UfeUI::GenericCommand::Mode::kRedo) {
+            xformOp.Set(newTransform);
+        }
+    };
+
+    const auto name = "Transform USD Prim";
+
+    const auto prim = xformable.GetPrim();
+    const auto stageObject = StageObjectMap::GetInstance()->Get(prim.GetStage());
+    const auto ufePath = MaxUsd::ufe::getUsdPrimUfePath(stageObject, prim.GetPath());
+
+    return UfeUi::EditCommand::create(ufePath, UfeUI::GenericCommand::create(callback, name), name);
+}
+
+PointInstanceManip::PointInstanceManip(
+    pxr::UsdGeomPointInstancer instancer,
+    const std::vector<int>&    indices,
+    const pxr::UsdTimeCode&    timeCode)
+{
+    // No pivot for point instances.
+    this->instancer = instancer;
+    this->timeCode = timeCode;
+    this->indices = indices;
+    pivot.SetIdentity();
+
+    instancer.ComputeInstanceTransformsAtTime(
+        &initOpTransforms, timeCode, timeCode, pxr::UsdGeomPointInstancer::ExcludeProtoXform);
+    // Can happen if none of the PRS attributes are authored, assume identity.
+    if (initOpTransforms.empty()) {
+        pxr::GfMatrix4d identity;
+        identity.SetIdentity();
+        initOpTransforms.resize(instancer.GetInstanceCount(timeCode));
+        std::fill(initOpTransforms.begin(), initOpTransforms.end(), identity);
+    }
+
+    const auto imageable = pxr::UsdGeomImageable { instancer.GetPrim() };
+    auto       instancerWorldMatrix = imageable.ComputeLocalToWorldTransform(timeCode);
+
+    const auto instanceCount = instancer.GetInstanceCount(timeCode);
+    initUsdWorldMatrices.resize(instanceCount);
+    for (const auto& idx : indices) {
+        initUsdWorldMatrices[idx] = initOpTransforms[idx] * instancerWorldMatrix;
+    }
+
+    // Ensure that the prs attributes are created and well formed.
+
+    auto positionsAttr = instancer.CreatePositionsAttr();
+
+    pxr::VtVec3fArray positions;
+    positionsAttr.Get(&positions, timeCode);
+    initPositions = positions;
+    if (positions.size() < instanceCount) {
+        positions.resize(instanceCount);
+        positionsAttr.Set(positions);
+    }
+
+    auto              scalesAttr = instancer.CreateScalesAttr();
+    pxr::VtVec3fArray scales;
+    scalesAttr.Get(&scales, timeCode);
+    initScales = scales;
+    if (scales.size() < instanceCount) {
+        scales.resize(instanceCount);
+        std::fill(scales.begin(), scales.end(), pxr::GfVec3f { 1.f, 1.f, 1.f });
+        scalesAttr.Set(scales);
+    }
+
+    auto              orientationsAttr = instancer.CreateOrientationsAttr();
+    pxr::VtQuathArray orientations;
+    orientationsAttr.Get(&orientations, timeCode);
+    initOrientations = orientations;
+    if (orientations.size() < instanceCount) {
+        orientations.resize(instanceCount);
+        std::fill(orientations.begin(), orientations.end(), pxr::GfQuath::GetIdentity());
+        orientationsAttr.Set(orientations);
+    }
+}
+
+void PointInstanceManip::TransformInteractive(
+    const pxr::GfMatrix4d& stageUnitAxis,
+    const Matrix3&         partm,
+    const Matrix3&         tmAxis,
+    const Matrix3&         transform) const
+{
+    auto posAttr = instancer.GetPositionsAttr();
+    auto oriAttr = instancer.GetOrientationsAttr();
+    auto sclAttr = instancer.GetScalesAttr();
+
+    // All attrs are expected at this point, unless we can't author on the prim at all.
+    if (!posAttr.IsValid() || !oriAttr.IsValid() || !sclAttr.IsValid()) {
+        return;
+    }
+
+    pxr::VtVec3fArray currentPositions;
+    posAttr.Get(&currentPositions, timeCode);
+    pxr::VtQuathArray currentOrientations;
+    oriAttr.Get(&currentOrientations, timeCode);
+    pxr::VtVec3fArray currentScales;
+    sclAttr.Get(&currentScales, timeCode);
+
+    const auto stageObject = StageObjectMap::GetInstance()->Get(instancer.GetPrim().GetStage());
+    const auto stageRootTransform = stageObject->GetStageRootTransform();
+
+    auto axis = tmAxis;
+    for (const auto& idx : indices) {
+        // In cases of multiple selection, we need to offset that pivot so that all selected object
+        // rotate around the same point. In case of single selection, the pivotOffset here will
+        // evaluate to (0,0,0).
+        const auto fullTransform
+            = initUsdWorldMatrices[idx] * stageRootTransform * MaxUsd::ToUsd(partm);
+        const auto pivotOffset
+            = MaxUsd::ToUsd(tmAxis.GetTrans()) - fullTransform.ExtractTranslation();
+        axis.SetTrans(MaxUsd::ToMax(pivotOffset));
+
+        auto worldRotAndScale = initUsdWorldMatrices[idx] * stageUnitAxis * MaxUsd::ToUsd(partm);
+        worldRotAndScale.SetTranslateOnly({});
+
+        auto usdMat = worldRotAndScale * MaxUsd::ToUsd(Inverse(axis)) * MaxUsd::ToUsd(transform)
+            * MaxUsd::ToUsd(axis) * worldRotAndScale.GetInverse();
+
+        auto newTransform = GetPivot().GetInverse() * usdMat * GetPivot() * initOpTransforms[idx];
+
+        auto instanceTranslation = newTransform.ExtractTranslation();
+        currentPositions[idx] = pxr::GfVec3f { instanceTranslation };
+
+        const auto noScaleTransform = newTransform.RemoveScaleShear();
+        const auto rotationQuat = pxr::GfQuath { noScaleTransform.ExtractRotationQuat() };
+        currentOrientations[idx] = rotationQuat;
+
+        pxr::GfMatrix4d rotR;
+        pxr::GfVec3d    scale;
+        pxr::GfMatrix4d rotU;
+        pxr::GfVec3d    translate;
+        pxr::GfMatrix4d project;
+        newTransform.Factor(&rotR, &scale, &rotU, &translate, &project);
+        currentScales[idx] = pxr::GfVec3f { scale };
+    }
+
+    posAttr.Set(currentPositions);
+    oriAttr.Set(currentOrientations);
+    sclAttr.Set(currentScales);
+}
+
+Ufe::UndoableCommand::Ptr PointInstanceManip::BuildTransformCmd() const
+{
+    auto posAttr = instancer.GetPositionsAttr();
+    auto oriAttr = instancer.GetOrientationsAttr();
+    auto sclAttr = instancer.GetScalesAttr();
+
+    // All attrs are expected at this point, unless we can't author on the prim at all.
+    if (!posAttr.IsValid() || !oriAttr.IsValid() || !sclAttr.IsValid()) {
+        return nullptr;
+    }
+
+    pxr::VtVec3fArray newPos;
+    posAttr.Get(&newPos);
+    pxr::VtQuathArray newOri;
+    oriAttr.Get(&newOri);
+    pxr::VtVec3fArray newScl;
+    sclAttr.Get(&newScl);
+
+    auto callback = [posAttr,
+                     iniPos = initPositions,
+                     newPos,
+                     oriAttr,
+                     iniOri = initOrientations,
+                     newOri,
+                     sclAttr,
+                     iniScl = initScales,
+                     newScl](UfeUI::GenericCommand::Mode mode) {
+        if (mode == UfeUI::GenericCommand::Mode::kUndo) {
+            posAttr.Set(iniPos);
+            oriAttr.Set(iniOri);
+            sclAttr.Set(iniScl);
+        } else if (mode == UfeUI::GenericCommand::Mode::kRedo) {
+            posAttr.Set(newPos);
+            oriAttr.Set(newOri);
+            sclAttr.Set(newScl);
+        }
+    };
+
+    const auto name = "Transform USD Point Instances";
+
+    const auto prim = instancer.GetPrim();
+    const auto stageObject = StageObjectMap::GetInstance()->Get(prim.GetStage());
+    const auto ufePath = MaxUsd::ufe::getUsdPrimUfePath(stageObject, prim.GetPath());
+
+    return UfeUi::EditCommand::create(ufePath, UfeUI::GenericCommand::create(callback, name), name);
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/SubobjectManips.h b/src/MaxUsdObjects/Objects/SubobjectManips.h
new file mode 100644
index 0000000..7f493a0
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/SubobjectManips.h
@@ -0,0 +1,125 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <ufe/undoableCommand.h>
+
+/**
+ * Abstract class describing transform manipulations of USD entities.
+ */
+class SubObjectManip
+{
+public:
+    SubObjectManip() = default;
+    SubObjectManip(const SubObjectManip&) = delete;
+    SubObjectManip& operator=(const SubObjectManip&) = delete;
+    SubObjectManip(SubObjectManip&&) = delete;
+    SubObjectManip& operator=(SubObjectManip&&) = delete;
+    virtual ~SubObjectManip() = default;
+
+    /**
+     * Applies a transform on an object being manipulated interactively.
+     * @param stageUnitAxis Unit/Axis conversion matrix for the USD Stage.
+     * @param partm Parent transform (typically the node's transform)
+     * @param tmAxis Axis transform (from gizmo)
+     * @param transform The transform to be applied, a delta.
+     */
+    virtual void TransformInteractive(
+        const pxr::GfMatrix4d& stageUnitAxis,
+        const Matrix3&         partm,
+        const Matrix3&         tmAxis,
+        const Matrix3&         transform) const
+        = 0;
+
+    /**
+     * Build's the transform command, meant to be called after interactive
+     * transform completes. Command should represent the full transform (state
+     * before any manipulation to the stage after interactive manipulation completes)
+     * @return The command.
+     */
+    virtual Ufe::UndoableCommand::Ptr BuildTransformCmd() const = 0;
+
+    const pxr::GfMatrix4d& GetPivot() const { return pivot; }
+
+    const pxr::UsdTimeCode& GetTimeCode() const { return timeCode; }
+
+protected:
+    pxr::GfMatrix4d  pivot;
+    pxr::UsdTimeCode timeCode;
+};
+
+/**
+ * Performs manipulation of USD Xformable prims in subobject mode.
+ */
+class XformableManip : public SubObjectManip
+{
+public:
+    XformableManip(const pxr::UsdGeomXformable& xformable, const pxr::UsdTimeCode& timeCode);
+
+    XformableManip(const SubObjectManip&) = delete;
+    XformableManip& operator=(const SubObjectManip&) = delete;
+    XformableManip(XformableManip&&) = delete;
+    XformableManip& operator=(XformableManip&&) = delete;
+    ~XformableManip() override = default;
+
+    void TransformInteractive(
+        const pxr::GfMatrix4d& stageUnitAxis,
+        const Matrix3&         partm,
+        const Matrix3&         tmAxis,
+        const Matrix3&         transform) const override;
+    Ufe::UndoableCommand::Ptr BuildTransformCmd() const override;
+
+protected:
+    pxr::GfMatrix4d       initUsdWorldMatrix;
+    pxr::UsdGeomXformOp   xformOp;
+    pxr::GfMatrix4d       initOpMatrix;
+    pxr::UsdGeomXformable xformable;
+};
+
+/**
+ * Performs manipulation of USD Point instances in subobject mode.
+ */
+class PointInstanceManip : public SubObjectManip
+{
+public:
+    PointInstanceManip(
+        pxr::UsdGeomPointInstancer instancer,
+        const std::vector<int>&    indices,
+        const pxr::UsdTimeCode&    timeCode);
+
+    PointInstanceManip(const SubObjectManip&) = delete;
+    PointInstanceManip& operator=(const SubObjectManip&) = delete;
+    PointInstanceManip(PointInstanceManip&&) = delete;
+    PointInstanceManip& operator=(PointInstanceManip&&) = delete;
+    ~PointInstanceManip() override = default;
+
+    void TransformInteractive(
+        const pxr::GfMatrix4d& stageUnitAxis,
+        const Matrix3&         partm,
+        const Matrix3&         tmAxis,
+        const Matrix3&         transform) const override;
+    Ufe::UndoableCommand::Ptr BuildTransformCmd() const override;
+
+protected:
+    pxr::UsdGeomPointInstancer instancer;
+    std::vector<int>           indices;
+
+    pxr::VtArray<pxr::GfMatrix4d> initOpTransforms;
+    std::vector<pxr::GfMatrix4d>  initUsdWorldMatrices;
+    pxr::VtArray<pxr::GfVec3f>    initPositions;
+    pxr::VtArray<pxr::GfQuath>    initOrientations;
+    pxr::VtArray<pxr::GfVec3f>    initScales;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.cpp b/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.cpp
new file mode 100644
index 0000000..354d292
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.cpp
@@ -0,0 +1,95 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDAttrControllerClassDescs.h"
+
+#include "USDAttrControllers.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/Views/UsdControllerWidget.h>
+#include <MaxUsdObjects/resource.h>
+
+void* USDFloatControllerClassDesc::Create(BOOL) { return new USDFloatController(); }
+
+const TCHAR* USDFloatControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDFLOATCONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDFloatControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDFloatController");
+}
+
+SClass_ID USDFloatControllerClassDesc::SuperClassID() { return CTRL_FLOAT_CLASS_ID; }
+
+Class_ID USDFloatControllerClassDesc::ClassID() { return USDFLOATCONTROLLER_CLASS_ID; }
+
+const TCHAR* USDFloatControllerClassDesc::InternalName() { return _T("USDFloatController"); }
+
+ClassDesc2* GetUSDFloatControllerClassDesc()
+{
+    static USDFloatControllerClassDesc classDesc;
+    return &classDesc;
+}
+
+void* USDPoint3ControllerClassDesc::Create(BOOL) { return new USDPoint3Controller(); }
+
+const TCHAR* USDPoint3ControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDPOINT3CONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDPoint3ControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDPoint3Controller");
+}
+
+SClass_ID USDPoint3ControllerClassDesc::SuperClassID() { return CTRL_POINT3_CLASS_ID; }
+
+Class_ID USDPoint3ControllerClassDesc::ClassID() { return USDPOINT3CONTROLLER_CLASS_ID; }
+
+const TCHAR* USDPoint3ControllerClassDesc::InternalName() { return _T("USDPoint3Controller"); }
+
+ClassDesc2* GetUSDPoint3ControllerClassDesc()
+{
+    static USDPoint3ControllerClassDesc classDesc;
+    return &classDesc;
+}
+
+void* USDPoint4ControllerClassDesc::Create(BOOL) { return new USDPoint4Controller(); }
+
+const TCHAR* USDPoint4ControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDPOINT4CONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDPoint4ControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDPoint4Controller");
+}
+
+SClass_ID USDPoint4ControllerClassDesc::SuperClassID() { return CTRL_POINT4_CLASS_ID; }
+
+Class_ID USDPoint4ControllerClassDesc::ClassID() { return USDPOINT4CONTROLLER_CLASS_ID; }
+
+const TCHAR* USDPoint4ControllerClassDesc::InternalName() { return _T("USDPoint4Controller"); }
+
+ClassDesc2* GetUSDPoint4ControllerClassDesc()
+{
+    static USDPoint4ControllerClassDesc classDesc;
+    return &classDesc;
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.h b/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.h
new file mode 100644
index 0000000..2673417
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDAttrControllerClassDescs.h
@@ -0,0 +1,58 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDBaseController.h"
+
+#include <iparamb2.h>
+
+class USDFloatControllerClassDesc : public USDBaseControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDFloatControllerClassDesc();
+
+class USDPoint3ControllerClassDesc : public USDBaseControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDPoint3ControllerClassDesc();
+
+class USDPoint4ControllerClassDesc : public USDBaseControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDPoint4ControllerClassDesc();
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDAttrControllers.cpp b/src/MaxUsdObjects/Objects/USDAttrControllers.cpp
new file mode 100644
index 0000000..5cd3129
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDAttrControllers.cpp
@@ -0,0 +1,311 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDAttrControllers.h"
+
+#include "USDAttrControllerClassDescs.h"
+#include "USDStageObject.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/Views/UsdControllerWidget.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <MaxUsd/Utilities/UsdLinkUtils.h>
+
+#include <QT/QmaxMainWindow.h>
+
+#include <inode.h>
+#include <iparamm2.h>
+
+#define PBLOCK_REF 0
+
+USDAttrController::~USDAttrController()
+{
+    if (dialog) {
+        // This will also delete the dialog as the "delete on close" flag is set.
+        dialog->close();
+    }
+}
+
+pxr::VtValue USDAttrController::GetAttrValue(const TimeValue& time) const
+{
+    const auto& attr = GetAttribute();
+    if (!stageNode || !attr.IsValid()) {
+        return {};
+    }
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        return {};
+    }
+
+    const auto   timeCode = stageObject->ResolveRenderTimeCode(time);
+    pxr::VtValue value;
+    attr.Get(&value, timeCode);
+    return value;
+}
+
+void USDAttrController::EditTrackParams(
+    TimeValue           t,
+    ParamDimensionBase* dim,
+    const TCHAR*        pname,
+    HWND                hParent,
+    IObjParam*          ip,
+    DWORD               flags)
+{
+    if (!dialog) {
+        dialog = new QDialog { GetCOREInterface()->GetQmaxMainWindow() };
+        QVBoxLayout* layout = new QVBoxLayout(dialog);
+        controllerWidget = new UsdControllerWidget { *this, *paramBlock };
+        layout->addWidget(controllerWidget);
+        controllerWidget->SetLabel(QObject::tr("Attribute Path:"));
+        controllerWidget->SetLabelTooltip(QObject::tr("The path of the attribute used as source."));
+        controllerWidget->SetPickButtonTooltip(
+            QObject::tr("Select the USD stage node that contains the source attribute."));
+        SetupDialog(dialog, controllerWidget);
+        dialog->setAttribute(Qt::WA_DeleteOnClose);
+    }
+    dialog->show();
+    dialog->raise();
+}
+
+int USDAttrController::TrackParamsType() { return TRACKPARAMS_WHOLE; }
+
+bool USDAttrController::IsSourceObjectValid() const { return attribute.IsValid(); }
+
+bool USDAttrController::UpdateSource(IParamBlock2* pb)
+{
+    bool changed = MaxUsd::UpdateUsdSourceAttr(
+        stageNode, attribute, pb, USDControllerParams_USDStage, USDControllerParams_Path);
+    if (controllerWidget) {
+        controllerWidget->UpdateUI(GetCOREInterface()->GetTime());
+    }
+    return changed;
+}
+
+const pxr::UsdAttribute& USDAttrController::GetAttribute() const { return attribute; }
+
+Class_ID USDFLOATCONTROLLER_CLASS_ID(0x24a91d51, 0x25de5c1c);
+
+// clang-format off
+ParamBlockDesc2 floatControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDFloatControllerParamBlock"),
+	IDS_USDFLOATCONTROLLER_CLASS_NAME,
+	GetUSDFloatControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT,
+	PBLOCK_REF,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("AttrPath"), TYPE_STRING, 0, IDS_USDATTRCONTROLLER_PATH_PARAM,p_default, L"", p_end, 
+	p_end);
+// clang-format on
+
+USDFloatController::USDFloatController()
+{
+    GetUSDFloatControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDFloatController::ClassID() { return USDFLOATCONTROLLER_CLASS_ID; }
+
+SClass_ID USDFloatController::SuperClassID() { return CTRL_FLOAT_CLASS_ID; }
+
+void USDFloatController::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    auto       value = GetAttrValue(t);
+    const auto floatVal = static_cast<float*>(val);
+    if (value.IsEmpty()) {
+        // With raw types, need to initialize to the default.
+        *floatVal = 0.f;
+        return;
+    }
+    if (value.CanCast<float>()) {
+        *floatVal = value.Cast<float>().Get<float>();
+    }
+    valid = Interval(t, t);
+}
+
+void USDFloatController::GetClassName(MSTR& className, bool localized) const
+{
+    className
+        = localized ? GetString(IDS_USDFLOATCONTROLLER_CLASS_NAME) : _T("USD Float Controller");
+}
+
+void USDFloatController::SetupDialog(
+    const QPointer<QDialog>&             dialog,
+    const QPointer<UsdControllerWidget>& widget)
+{
+    dialog->setWindowTitle(QObject::tr("USD Float Controller"));
+    widget->SetPathErrorMessage(QObject::tr("Invalid Attribute path for a float value : "));
+}
+
+RefTargetHandle USDFloatController::Clone(RemapDir& remap)
+{
+    USDFloatController* floatCtrl = new USDFloatController();
+    floatCtrl->ReplaceReference(PBLOCK_REF, remap.CloneRef(paramBlock));
+    BaseClone(this, floatCtrl, remap);
+    return floatCtrl;
+}
+
+ClassDesc2* USDFloatController::GetControllerClassDesc() const
+{
+    return GetUSDFloatControllerClassDesc();
+}
+
+Class_ID USDPOINT3CONTROLLER_CLASS_ID(0x2346548e, 0x1a1e57e8);
+
+// clang-format off
+ParamBlockDesc2 point3ControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDPoint3ControllerParamBlock"),
+	IDS_USDPOINT3CONTROLLER_CLASS_NAME,
+	GetUSDPoint3ControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT,
+	PBLOCK_REF,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("AttrPath"), TYPE_STRING, 0, IDS_USDATTRCONTROLLER_PATH_PARAM,p_default, L"", p_end, 
+	p_end);
+// clang-format on
+
+USDPoint3Controller::USDPoint3Controller()
+{
+    GetUSDPoint3ControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDPoint3Controller::ClassID() { return USDPOINT3CONTROLLER_CLASS_ID; }
+
+SClass_ID USDPoint3Controller::SuperClassID() { return CTRL_POINT3_CLASS_ID; }
+
+void USDPoint3Controller::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    auto value = GetAttrValue(t);
+    if (value.IsEmpty()) {
+        return;
+    }
+    const auto point3Val = static_cast<Point3*>(val);
+    if (value.CanCast<pxr::GfVec3f>()) {
+        *point3Val = MaxUsd::ToMax(value.Cast<pxr::GfVec3f>().Get<pxr::GfVec3f>());
+    }
+    // Allow two-dimensional values to be read into Point3 as well.
+    else if (value.CanCast<pxr::GfVec2f>()) {
+        auto         vec2 = value.Cast<pxr::GfVec2f>().Get<pxr::GfVec2f>();
+        pxr::GfVec3f vec3 = { vec2[0], vec2[1], 0.f };
+        *point3Val = MaxUsd::ToMax(vec3);
+    }
+    valid = Interval(t, t);
+}
+
+void USDPoint3Controller::GetClassName(MSTR& className, bool localized) const
+{
+    className
+        = localized ? GetString(IDS_USDPOINT3CONTROLLER_CLASS_NAME) : _T("USD Point3 Controller");
+}
+
+void USDPoint3Controller::SetupDialog(
+    const QPointer<QDialog>&             dialog,
+    const QPointer<UsdControllerWidget>& widget)
+{
+    dialog->setWindowTitle(QString::fromStdWString(GetString(IDS_USDPOINT3CONTROLLER_CLASS_NAME)));
+    widget->SetPathErrorMessage(QObject::tr("Invalid Attribute path to read a Point3 value : "));
+}
+
+RefTargetHandle USDPoint3Controller::Clone(RemapDir& remap)
+{
+    USDPoint3Controller* float3Ctrl = new USDPoint3Controller();
+    float3Ctrl->ReplaceReference(PBLOCK_REF, remap.CloneRef(paramBlock));
+    BaseClone(this, float3Ctrl, remap);
+    return float3Ctrl;
+}
+
+ClassDesc2* USDPoint3Controller::GetControllerClassDesc() const
+{
+    return GetUSDPoint3ControllerClassDesc();
+}
+
+Class_ID USDPOINT4CONTROLLER_CLASS_ID(0x3f955b1d, 0x22ad1d76);
+
+// clang-format off
+ParamBlockDesc2 point4ControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDPoint4ControllerParamBlock"),
+	IDS_USDPOINT4CONTROLLER_CLASS_NAME,
+	GetUSDPoint4ControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT,
+	PBLOCK_REF,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("AttrPath"), TYPE_STRING, 0, IDS_USDATTRCONTROLLER_PATH_PARAM,p_default, L"", p_end, 
+	p_end);
+// clang-format on
+
+USDPoint4Controller::USDPoint4Controller()
+{
+    GetUSDPoint3ControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDPoint4Controller::ClassID() { return USDPOINT4CONTROLLER_CLASS_ID; }
+
+SClass_ID USDPoint4Controller::SuperClassID() { return CTRL_POINT4_CLASS_ID; }
+
+void USDPoint4Controller::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    auto value = GetAttrValue(t);
+    if (value.IsEmpty()) {
+        return;
+    }
+    const auto point4Val = static_cast<Point4*>(val);
+    if (value.CanCast<pxr::GfVec4f>()) {
+        *point4Val = MaxUsd::ToMax(value.Cast<pxr::GfVec4f>().Get<pxr::GfVec4f>());
+    }
+    // Allow three-dimensional values to be read into Point4 as well.
+    else if (value.CanCast<pxr::GfVec3f>()) {
+        auto         vec3 = value.Cast<pxr::GfVec3f>().Get<pxr::GfVec3f>();
+        pxr::GfVec4f vec4 = { vec3[0], vec3[1], vec3[2], 0.f };
+        *point4Val = MaxUsd::ToMax(vec4);
+    }
+    valid = Interval(t, t);
+}
+
+void USDPoint4Controller::GetClassName(MSTR& className, bool localized) const
+{
+    className
+        = localized ? GetString(IDS_USDPOINT4CONTROLLER_CLASS_NAME) : _T("USD Point4 Controller");
+}
+
+void USDPoint4Controller::SetupDialog(
+    const QPointer<QDialog>&             dialog,
+    const QPointer<UsdControllerWidget>& widget)
+{
+    dialog->setWindowTitle(QString::fromStdWString(GetString(IDS_USDPOINT4CONTROLLER_CLASS_NAME)));
+    widget->SetPathErrorMessage(QObject::tr("Invalid Attribute path to read a Point4 value : "));
+}
+
+RefTargetHandle USDPoint4Controller::Clone(RemapDir& remap)
+{
+    USDPoint4Controller* float4Ctrl = new USDPoint4Controller();
+    float4Ctrl->ReplaceReference(PBLOCK_REF, remap.CloneRef(paramBlock));
+    BaseClone(this, float4Ctrl, remap);
+    return float4Ctrl;
+}
+
+ClassDesc2* USDPoint4Controller::GetControllerClassDesc() const
+{
+    return GetUSDPoint4ControllerClassDesc();
+}
+
+// Disable obscure warning only occurring for 2022 (pixar usd version: 21.11):
+// no definition for inline function : pxr::DefaultValueHolder Was not able to identify what is
+// triggering this.
+#pragma warning(disable : 4506)
diff --git a/src/MaxUsdObjects/Objects/USDAttrControllers.h b/src/MaxUsdObjects/Objects/USDAttrControllers.h
new file mode 100644
index 0000000..c2a9954
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDAttrControllers.h
@@ -0,0 +1,143 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "USDBaseController.h"
+
+#include <control.h>
+#include <iparamb2.h>
+#include <qpointer.h>
+
+class UsdControllerWidget;
+class QDialog;
+
+/**
+ * Abstract USD controller for controllers driven by USD Attributes.
+ */
+class USDAttrController : public USDBaseController
+{
+public:
+    USDAttrController() = default;
+    ~USDAttrController() override;
+
+    // Animatable overrides.
+    void EditTrackParams(
+        TimeValue           t,
+        ParamDimensionBase* dim,
+        const TCHAR*        pname,
+        HWND                hParent,
+        IObjParam*          ip,
+        DWORD               flags) override;
+    int TrackParamsType() override;
+
+    // USDBaseController overrides.
+    bool IsSourceObjectValid() const override;
+    bool UpdateSource(IParamBlock2* pb) override;
+
+    /**
+     * Returns the value of the source attribute at the given time. Will take into account any
+     * animation offsets defined on the stage object.
+     * @param time The 3dsMax time at which to get the USD attribute value.
+     * @return The attribute value.
+     */
+    pxr::VtValue GetAttrValue(const TimeValue& time) const;
+
+    /**
+     * Gets the USD attribute used as source for this controller.
+     * @return The attribute.
+     */
+    const pxr::UsdAttribute& GetAttribute() const;
+
+    /**
+     * Attribute controllers share the same base UI, but may need to make adjustments to it.
+     * By implementing this method, they can do so.
+     * @param dialog The dialog showing the attribute controller widget.
+     * @param controllerWidget The controller widget.
+     */
+    virtual void SetupDialog(
+        const QPointer<QDialog>&             dialog,
+        const QPointer<UsdControllerWidget>& controllerWidget)
+        = 0;
+
+private:
+    /// The source attribute for the controller.
+    pxr::UsdAttribute attribute;
+    /// The dialog hosting the UI for the controller.
+    QPointer<QDialog> dialog;
+    /// The controller's UI widget (a QMaxParamBlockWidget)
+    QPointer<UsdControllerWidget> controllerWidget;
+};
+
+/// Attribute controller to read into floats.
+extern Class_ID USDFLOATCONTROLLER_CLASS_ID;
+class USDFloatController : public USDAttrController
+{
+public:
+    USDFloatController();
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+
+    void GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void GetClassName(MSTR& s, bool localized = true) const override;
+    void SetupDialog(const QPointer<QDialog>& dialog, const QPointer<UsdControllerWidget>& widget)
+        override;
+    RefTargetHandle Clone(RemapDir& remap);
+    ClassDesc2*     GetControllerClassDesc() const override;
+};
+
+/*
+ * Attribute controller to read into Point3 values.
+ * Note : Supports both 3 dimensional and 2 dimensional values.
+ * For example a double2 value can be read into a Point3, and a 0 will be used for the third
+ * component.
+ * */
+extern Class_ID USDPOINT3CONTROLLER_CLASS_ID;
+class USDPoint3Controller : public USDAttrController
+{
+public:
+    USDPoint3Controller();
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+
+    void GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void GetClassName(MSTR& s, bool localized = true) const override;
+    void SetupDialog(const QPointer<QDialog>& dialog, const QPointer<UsdControllerWidget>& widget)
+        override;
+    RefTargetHandle Clone(RemapDir& remap);
+    ClassDesc2*     GetControllerClassDesc() const override;
+};
+
+/*
+ * Attribute controller to read into Point4 values.
+ * Note : Supports both 4 dimensional and 3 dimensional values.
+ * For example a double3 value can be read into a Point4, and a 0 will be used for the fourth
+ * component.
+ * */
+extern Class_ID USDPOINT4CONTROLLER_CLASS_ID;
+class USDPoint4Controller : public USDAttrController
+{
+public:
+    USDPoint4Controller();
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+
+    void GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void GetClassName(MSTR& s, bool localized = true) const override;
+    void SetupDialog(const QPointer<QDialog>& dialog, const QPointer<UsdControllerWidget>& widget)
+        override;
+    RefTargetHandle Clone(RemapDir& remap);
+    ClassDesc2*     GetControllerClassDesc() const override;
+};
diff --git a/src/MaxUsdObjects/Objects/USDBaseController.cpp b/src/MaxUsdObjects/Objects/USDBaseController.cpp
new file mode 100644
index 0000000..c477d16
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDBaseController.cpp
@@ -0,0 +1,107 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDBaseController.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <inode.h>
+#include <iparamm2.h>
+
+#define PBLOCK_REF 0
+
+void USDBaseController::BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev)
+{
+    Control::BeginEditParams(ip, flags, prev);
+    GetControllerClassDesc()->BeginEditParams(ip, this, flags, prev);
+}
+
+void USDBaseController::EndEditParams(IObjParam* ip, ULONG flags, Animatable* next)
+{
+    Control::EndEditParams(ip, flags, next);
+    GetControllerClassDesc()->EndEditParams(ip, this, flags, next);
+}
+
+int USDBaseController::NumRefs() { return 1; }
+
+RefTargetHandle USDBaseController::GetReference(int i)
+{
+    if (i == PBLOCK_REF) {
+        return paramBlock;
+    }
+    return nullptr;
+}
+
+void USDBaseController::SetReference(int i, RefTargetHandle rtarg)
+{
+    if (i == PBLOCK_REF) {
+        paramBlock = static_cast<IParamBlock2*>(rtarg);
+    }
+}
+
+int USDBaseController::NumParamBlocks() { return 1; }
+
+IParamBlock2* USDBaseController::GetParamBlock(int i) { return paramBlock; }
+
+IParamBlock2* USDBaseController::GetParamBlockByID(BlockID id)
+{
+    return paramBlock->ID() == id ? paramBlock : nullptr;
+}
+
+RefResult USDBaseController::NotifyRefChanged(
+    const Interval& changeInt,
+    RefTargetHandle hTarget,
+    PartID&         partID,
+    RefMessage      message,
+    BOOL            propagate)
+{
+    switch (message) {
+    case REFMSG_CHANGE: {
+        const auto pb = dynamic_cast<IParamBlock2*>(hTarget);
+        if (!pb) {
+            return REF_DONTCARE;
+        }
+        int     tabIndex = -1;
+        ParamID pID = pb->LastNotifyParamID(tabIndex);
+        switch (pID) {
+        case USDControllerParams_USDStage:
+        case USDControllerParams_Path:
+            if (!UpdateSource(pb)) {
+                return REF_SUCCEED;
+            }
+            if (const auto map = pb->GetMap()) {
+                map->UpdateUI(GetCOREInterface()->GetTime());
+            }
+            NotifyDependents(FOREVER, 0, REFMSG_CHANGE);
+            GetCOREInterface()->RedrawViews(GetCOREInterface()->GetTime());
+            break;
+        }
+        break;
+    }
+    }
+    return REF_SUCCEED;
+};
+
+int USDBaseControllerClassDesc::IsPublic() { return TRUE; }
+
+const TCHAR* USDBaseControllerClassDesc::Category() { return GetString(IDS_USD_CATEGORY); }
+
+HINSTANCE USDBaseControllerClassDesc::HInstance() { return hInstance; }
+
+bool USDBaseControllerClassDesc::UseOnlyInternalNameForMAXScriptExposure() { return true; }
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDBaseController.h b/src/MaxUsdObjects/Objects/USDBaseController.h
new file mode 100644
index 0000000..86a49b3
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDBaseController.h
@@ -0,0 +1,89 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <control.h>
+#include <iparamb2.h>
+
+enum USDControllerParams
+{
+    USDControllerParams_USDStage,
+    USDControllerParams_Path,
+    USDControllerParams_PreventNodeDeletion
+};
+
+class USDBaseController : public Control
+{
+
+public:
+    USDBaseController() = default;
+
+    // Controller overrides.
+    void            BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev) override;
+    void            EndEditParams(IObjParam* ip, ULONG flags, Animatable* next) override;
+    int             NumRefs() override;
+    RefTargetHandle GetReference(int i) override;
+    void            SetReference(int i, RefTargetHandle rtarg) override;
+    int             NumParamBlocks() override;
+    IParamBlock2*   GetParamBlock(int i) override;
+    IParamBlock2*   GetParamBlockByID(BlockID id) override;
+    void            Copy(Control* from) override {};
+    void            SetValue(TimeValue t, void* val, int commit, GetSetMethod method) override {};
+
+    /**
+     * Whether the USD object being read by this controller is valid (I.e. a valid
+     * object in a loaded USD stage).
+     * @return True if the source is valid.
+     */
+    virtual bool IsSourceObjectValid() const = 0;
+
+protected:
+    // RefMaker override.
+    RefResult NotifyRefChanged(
+        const Interval& changeInt,
+        RefTargetHandle hTarget,
+        PartID&         partID,
+        RefMessage      message,
+        BOOL            propagate) override;
+
+    /**
+     * Returns the class desc of concrete implementations. This allows reusing some general setup
+     * code for USD controllers.
+     * @return The controller's class description.
+     */
+    virtual ClassDesc2* GetControllerClassDesc() const = 0;
+
+    /**
+     * Updates the USD source for this controller, from its parameters.
+     * @param pb The paramblock to update from.
+     * @return true if the source was changed from previous value, false otherwise.
+     */
+    virtual bool UpdateSource(IParamBlock2* pb) = 0;
+
+    /// The param block for this controller.
+    IParamBlock2* paramBlock = nullptr;
+    /// The node owning the stage object.
+    INode* stageNode = nullptr;
+};
+
+class USDBaseControllerClassDesc : public ClassDesc2
+{
+public:
+    int          IsPublic() override;
+    const TCHAR* Category() override;
+    HINSTANCE    HInstance() override;
+    bool         UseOnlyInternalNameForMAXScriptExposure() override;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDCameraObject.cpp b/src/MaxUsdObjects/Objects/USDCameraObject.cpp
new file mode 100644
index 0000000..7fa378c
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDCameraObject.cpp
@@ -0,0 +1,594 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDCameraObject.h"
+
+#include "CreateCallbacks/CreateAtPosition.h"
+#include "USDStageObject.h"
+#include "UsdCameraObjectclassDesc.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/CameraConversion/CameraConverter.h>
+#include <MaxUsd/Utilities/UsdLinkUtils.h>
+
+#include <iparamm2.h>
+
+#define PBLOCK_REF 0
+
+Class_ID USDCAMERAOBJECT_CLASS_ID(0x56fb5fb2, 0x7687774f);
+
+// clang-format off
+ParamBlockDesc2 usdCameraParamblockDesc(PBLOCK_REF, 
+	_M("USDCameraObject"),
+	IDS_USDCAMERA_ROLL_OUT,
+	GetUSDCameraObjectClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP,
+	PBLOCK_REF,
+	1,
+	USDCameraMapID_General,
+	// Parameters
+	USDCameraParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCAMERA_USDSTAGE_PARAM, p_end, 
+	USDCameraParams_PrimPath,_M("CameraPrimPath"), TYPE_STRING, 0, IDS_USDCAMERA_CAMERAPATH_PARAM,p_default, L"", p_end, 
+	p_end);
+// clang-format on
+
+USDCameraObject::USDCameraObject()
+{
+    GetUSDCameraObjectClassDesc()->MakeAutoParamBlocks(this);
+    conversionOptions.SetDefaults();
+    internalCamera = static_cast<IPhysicalCamera*>(
+        GetCOREInterface17()->CreateInstance(CAMERA_CLASS_ID, GetClassID()));
+
+    // Register ourselves as a listener for USD stage change notifications. If the camera is
+    // changed externally, will need to reconvert.
+    pxr::TfWeakPtr<USDCameraObject> me(this);
+    onStageChangeNotice = pxr::TfNotice::Register(me, &USDCameraObject::OnStageChange);
+}
+
+USDCameraObject::~USDCameraObject()
+{
+    // Camera is only known to us, it needs to be deleted manually.
+    internalCamera->MaybeAutoDelete();
+    pxr::TfNotice::Revoke(onStageChangeNotice);
+}
+
+void USDCameraObject::SetReference(int i, RefTargetHandle rtarg)
+{
+    paramBlock = dynamic_cast<IParamBlock2*>(rtarg);
+}
+
+int USDCameraObject::NumRefs() { return 1; }
+
+ReferenceTarget* USDCameraObject::GetReference(int i) { return i == 0 ? paramBlock : nullptr; }
+
+int USDCameraObject::NumParamBlocks() { return 1; }
+
+IParamBlock2* USDCameraObject::GetParamBlock(int i) { return i == 0 ? paramBlock : nullptr; }
+
+IParamBlock2* USDCameraObject::GetParamBlockByID(BlockID id)
+{
+    if (paramBlock && paramBlock->ID() == id) {
+        return paramBlock;
+    }
+    return nullptr;
+}
+
+int USDCameraObject::NumSubs() { return 1; }
+
+Animatable* USDCameraObject::SubAnim(int i) { return paramBlock; }
+
+TSTR USDCameraObject::SubAnimName(int i, bool localized)
+{
+    return localized ? GetString(IDS_PARAMS) : _T("Parameters");
+}
+
+int USDCameraObject::SubNumToRefNum(int subNum)
+{
+    if (subNum == PBLOCK_REF) {
+        return subNum;
+    }
+    return -1;
+}
+
+RefTargetHandle USDCameraObject::Clone(RemapDir& remap)
+{
+    USDCameraObject* newCamera = new USDCameraObject();
+    newCamera->ReplaceReference(PBLOCK_REF, remap.CloneRef(paramBlock));
+    BaseClone(this, newCamera, remap);
+    return newCamera;
+}
+
+void USDCameraObject::BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev)
+{
+    IPhysicalCamera::BeginEditParams(ip, flags, prev);
+    GetUSDCameraObjectClassDesc()->BeginEditParams(ip, this, flags, prev);
+}
+
+void USDCameraObject::EndEditParams(IObjParam* ip, ULONG flags, Animatable* next)
+{
+    IPhysicalCamera::EndEditParams(ip, flags, next);
+    GetUSDCameraObjectClassDesc()->EndEditParams(ip, this, flags, next);
+}
+
+RefResult USDCameraObject::NotifyRefChanged(
+    const Interval& changeInt,
+    RefTargetHandle hTarget,
+    PartID&         partID,
+    RefMessage      message,
+    BOOL            propagate)
+{
+    switch (message) {
+    case REFMSG_CHANGE: {
+        const auto pb = dynamic_cast<IParamBlock2*>(hTarget);
+        if (!pb) {
+            return REF_DONTCARE;
+        }
+        int     tabIndex = -1;
+        ParamID pID = pb->LastNotifyParamID(tabIndex);
+        switch (pID) {
+        case USDCameraParams_USDStage:
+        case USDCameraParams_PrimPath:
+            if (!MaxUsd::UpdateUsdSource<pxr::UsdGeomCamera>(
+                    stageNode, usdCamera, pb, USDCameraParams_USDStage, USDCameraParams_PrimPath)) {
+                return REF_SUCCEED;
+            }
+            const auto map = pb->GetMap(USDCameraMapID_General);
+            if (map) {
+                map->UpdateUI(GetCOREInterface()->GetTime());
+            }
+            break;
+        }
+        break;
+    }
+    }
+    return REF_SUCCEED;
+}
+
+void USDCameraObject::GetWorldBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box)
+{
+    Update(t);
+    internalCamera->GetWorldBoundBox(t, inode, vp, box);
+}
+
+void USDCameraObject::GetLocalBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box)
+{
+    Update(t);
+    internalCamera->GetLocalBoundBox(t, inode, vp, box);
+}
+
+Class_ID USDCameraObject::ClassID() { return USDCAMERAOBJECT_CLASS_ID; }
+
+int USDCameraObject::IsRenderable() { return internalCamera->IsRenderable(); }
+
+Interval USDCameraObject::ObjectValidity(TimeValue time)
+{
+    // Always use an "instant" interval, we want to update at every frame.
+    return Interval(time, time);
+}
+
+RefResult USDCameraObject::EvalCameraState(TimeValue time, Interval& valid, CameraState* cs)
+{
+    Update(time);
+    return internalCamera->EvalCameraState(time, valid, cs);
+}
+
+ObjectState USDCameraObject::Eval(TimeValue t)
+{
+    Update(t);
+    return ObjectState(this);
+}
+
+void USDCameraObject::InitNodeName(MSTR& name) { name = L"UsdCamera"; }
+
+const wchar_t* USDCameraObject::GetObjectName(bool localized) const { return _M("UsdCamera"); }
+
+CreateMouseCallBack* USDCameraObject::GetCreateMouseCallBack()
+{
+    // USD Camera object is not meant to be user created.
+    return nullptr;
+}
+
+void USDCameraObject::SetOrtho(BOOL b)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+BOOL USDCameraObject::IsOrtho() { return internalCamera->IsOrtho(); }
+
+void USDCameraObject::SetFOV(TimeValue t, float f)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+float USDCameraObject::GetFOV(TimeValue t, Interval& valid)
+{
+    Update(t);
+    return internalCamera->GetFOV(t, valid);
+}
+
+void USDCameraObject::SetTDist(TimeValue t, float f)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+float USDCameraObject::GetTDist(TimeValue t, Interval& valid)
+{
+    Update(t);
+    return internalCamera->GetTDist(t, valid);
+}
+
+int USDCameraObject::GetManualClip() { return internalCamera->GetManualClip(); }
+
+void USDCameraObject::SetManualClip(int onOff)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+float USDCameraObject::GetClipDist(TimeValue t, int which, Interval& valid)
+{
+    Update(t);
+    return internalCamera->GetClipDist(t, which, valid);
+}
+
+void USDCameraObject::SetClipDist(TimeValue t, int which, float val)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+void USDCameraObject::SetEnvRange(TimeValue time, int which, float f)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+float USDCameraObject::GetEnvRange(TimeValue t, int which, Interval& valid)
+{
+    Update(t);
+    return internalCamera->GetEnvRange(t, which, valid);
+}
+
+void USDCameraObject::SetEnvDisplay(BOOL b, int notify)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+BOOL USDCameraObject::GetEnvDisplay() { return internalCamera->GetEnvDisplay(); }
+
+void USDCameraObject::RenderApertureChanged(TimeValue t)
+{
+    internalCamera->RenderApertureChanged(t);
+}
+
+GenCamera* USDCameraObject::NewCamera(int type) { return internalCamera->NewCamera(type); }
+
+void USDCameraObject::SetConeState(int s)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+int USDCameraObject::GetConeState() { return internalCamera->GetConeState(); }
+
+void USDCameraObject::SetHorzLineState(int s)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+int USDCameraObject::GetHorzLineState() { return internalCamera->GetHorzLineState(); }
+
+void USDCameraObject::Enable(int enab) { internalCamera->Enable(enab); }
+
+BOOL USDCameraObject::SetFOVControl(Control* c)
+{
+    // Unsupported, Camera driven from USD.
+    return FALSE;
+}
+
+void USDCameraObject::SetFOVType(int ft)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+int USDCameraObject::GetFOVType() { return internalCamera->GetFOVType(); }
+
+Control* USDCameraObject::GetFOVControl() { return internalCamera->GetFOVControl(); }
+
+int USDCameraObject::Type() { return internalCamera->Type(); }
+
+void USDCameraObject::SetType(int tp)
+{
+    // Unsupported, Camera driven from USD.
+}
+
+float USDCameraObject::GetFilmWidth(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetFilmWidth(t, validity);
+}
+
+float USDCameraObject::GetEffectiveLensFocalLength(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetEffectiveLensFocalLength(t, validity);
+}
+
+float USDCameraObject::GetCropZoomFactor(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetCropZoomFactor(t, validity);
+}
+
+float USDCameraObject::GetLensApertureRadius(
+    const TimeValue t,
+    Interval&       validity,
+    const bool      adjustForBlades) const
+{
+    return internalCamera->GetLensApertureRadius(t, validity, adjustForBlades);
+}
+
+float USDCameraObject::GetLensApertureFNumber(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetLensApertureFNumber(t, validity);
+}
+
+bool USDCameraObject::GetMotionBlurEnabled(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetMotionBlurEnabled(t, validity);
+}
+
+float USDCameraObject::GetShutterDurationInFrames(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetShutterDurationInFrames(t, validity);
+}
+
+float USDCameraObject::GetShutterOffsetInFrames(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetShutterOffsetInFrames(t, validity);
+}
+
+float USDCameraObject::GetFocusDistance(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetFocusDistance(t, validity);
+}
+
+float USDCameraObject::GetEffectiveISO(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetEffectiveISO(t, validity);
+}
+
+float USDCameraObject::GetEffectiveEV(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetEffectiveEV(t, validity);
+}
+
+Color USDCameraObject::GetWhitePoint(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetWhitePoint(t, validity);
+}
+
+float USDCameraObject::GetExposureVignettingAmount(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetExposureVignettingAmount(t, validity);
+}
+
+bool USDCameraObject::GetDOFEnabled(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetDOFEnabled(t, validity);
+}
+
+MaxSDK::IPhysicalCamera::BokehShape
+USDCameraObject::GetBokehShape(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehShape(t, validity);
+}
+
+int USDCameraObject::GetBokehNumberOfBlades(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehNumberOfBlades(t, validity);
+}
+
+float USDCameraObject::GetBokehBladesRotationDegrees(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehBladesRotationDegrees(t, validity);
+}
+
+Texmap* USDCameraObject::GetBokehTexture(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehTexture(t, validity);
+}
+
+bool USDCameraObject::GetBokehTextureAffectExposure(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehTextureAffectExposure(t, validity);
+}
+
+float USDCameraObject::GetBokehOpticalVignetting(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehOpticalVignetting(t, validity);
+}
+
+float USDCameraObject::GetBokehCenterBias(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehCenterBias(t, validity);
+}
+
+float USDCameraObject::GetBokehAnisotropy(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetBokehAnisotropy(t, validity);
+}
+
+MaxSDK::IPhysicalCamera::LensDistortionType
+USDCameraObject::GetLensDistortionType(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetLensDistortionType(t, validity);
+}
+
+float USDCameraObject::GetLensDistortionCubicAmount(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetLensDistortionCubicAmount(t, validity);
+}
+
+Texmap* USDCameraObject::GetLensDistortionTexture(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetLensDistortionTexture(t, validity);
+}
+
+Point2 USDCameraObject::GetFilmPlaneOffset(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetFilmPlaneOffset(t, validity);
+}
+
+Point2 USDCameraObject::GetTiltCorrection(const TimeValue t, Interval& validity) const
+{
+    return internalCamera->GetTiltCorrection(t, validity);
+}
+
+int USDCameraObject::HitTest(
+    TimeValue t,
+    INode*    inode,
+    int       type,
+    int       crossing,
+    int       flags,
+    IPoint2*  p,
+    ViewExp*  vpt)
+{
+    return internalCamera->HitTest(t, inode, type, crossing, flags, p, vpt);
+}
+
+void USDCameraObject::Snap(TimeValue t, INode* inode, SnapInfo* snap, IPoint2* p, ViewExp* vpt)
+{
+    return internalCamera->Snap(t, inode, snap, p, vpt);
+}
+
+void USDCameraObject::SetExtendedDisplay(int flags)
+{
+    return internalCamera->SetExtendedDisplay(flags);
+}
+
+int USDCameraObject::Display(TimeValue t, INode* inode, ViewExp* vpt, int flags)
+{
+    return internalCamera->Display(t, inode, vpt, flags);
+}
+
+unsigned long USDCameraObject::GetObjectDisplayRequirement() const
+{
+    return internalCamera->GetObjectDisplayRequirement();
+}
+
+bool USDCameraObject::PrepareDisplay(
+    const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext)
+{
+    return internalCamera->PrepareDisplay(prepareDisplayContext);
+}
+
+bool USDCameraObject::UpdatePerNodeItems(
+    const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+    MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+    MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer)
+{
+    return internalCamera->UpdatePerNodeItems(
+        updateDisplayContext, nodeContext, targetRenderItemContainer);
+}
+
+const pxr::UsdGeomCamera& USDCameraObject::GetUsdCamera() { return usdCamera; }
+
+void USDCameraObject::Update(TimeValue time)
+{
+    if (!stageNode || !usdCamera.GetPrim().IsValid()) {
+        return;
+    }
+
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        return;
+    }
+
+    const auto stage = stageObject->GetUSDStage();
+    if (!stage) {
+        return;
+    }
+
+    const auto timeCode = stageObject->ResolveRenderTimeCode(time);
+
+    // Already have a valid converted camera on that time, nothing to do.
+    if (conversionTimeCode == timeCode) {
+        return;
+    }
+
+    if (conversionTimeCode != pxr::UsdTimeCode::Default()) {
+        // If we have a camera converted at time, and we know that none of the attributes
+        // are animated, we can bail.
+        bool cameraMightBeAnimated = false;
+        for (const auto& attrName : usdCamera.GetSchemaAttributeNames()) {
+            const auto& attr = usdCamera.GetPrim().GetAttribute(attrName);
+            if (attr.ValueMightBeTimeVarying()) {
+                cameraMightBeAnimated = true;
+                break;
+            }
+        }
+        if (!cameraMightBeAnimated) {
+            return;
+        }
+    }
+
+    // Setup the conversion options - the only thing we care about for cameras, is the time
+    // at which the conversion takes place.
+    conversionOptions.SetTimeMode(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::CustomRange);
+    conversionOptions.SetStartTimeCode(timeCode.GetValue());
+    conversionOptions.SetEndTimeCode(timeCode.GetValue());
+    const pxr::MaxUsdReadJobContext readJobContext { conversionOptions,
+                                                     stageObject->GetUSDStage() };
+
+    MaxUsd::CameraConverter::ToPhysicalCamera(usdCamera, internalCamera, readJobContext);
+    conversionTimeCode = timeCode;
+}
+
+void USDCameraObject::OnStageChange(pxr::UsdNotice::ObjectsChanged const& notice)
+{
+    const auto cameraPrim = usdCamera.GetPrim();
+    if (!stageNode || !cameraPrim.IsValid()) {
+        return;
+    }
+
+    if (notice.GetStage() != cameraPrim.GetStage()) {
+        return;
+    }
+
+    // Here, we only need to care about the camera prim and its properties for the
+    // purpose of conversion. If the camera is culled completely from the stage, the
+    // object will be removed, but that does not concern conversion.
+
+    // AffectedObject won't tell us if properties of the camera have changed (as attributes are
+    // also objects with their own paths).
+    auto propertiesChanged = [&notice, &cameraPrim]() {
+        for (const auto& path : notice.GetChangedInfoOnlyPaths()) {
+            if (path.IsPropertyPath() || path.HasPrefix(cameraPrim.GetPath())) {
+                return true;
+            }
+        }
+        return false;
+    };
+
+    if (notice.AffectedObject(cameraPrim) || propertiesChanged()) {
+        conversionTimeCode = pxr::UsdTimeCode::Default();
+        Interval valid = FOREVER;
+        this->ForceNotify(valid);
+    }
+}
+
+bool USDCameraObject::SetEvaluatingRenderTransform(const bool evaluatingRenderTransform)
+{
+    const bool oldValue = evaluateRenderTransform;
+    evaluateRenderTransform = evaluatingRenderTransform;
+    return oldValue;
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDCameraObject.h b/src/MaxUsdObjects/Objects/USDCameraObject.h
new file mode 100644
index 0000000..7a7f0b3
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDCameraObject.h
@@ -0,0 +1,194 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/MaxUsdObjectsAPI.h>
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+
+#include <pxr/usd/usdGeom/camera.h>
+
+#include <Scene/IPhysicalCamera.h>
+
+extern Class_ID USDCAMERAOBJECT_CLASS_ID;
+
+enum USDCameraParams
+{
+    USDCameraParams_USDStage,
+    USDCameraParams_PrimPath
+};
+
+enum USDCameraParamMapID
+{
+    USDCameraMapID_General
+};
+
+class MaxUSDObjectsAPI USDCameraObject
+    : public MaxSDK::IPhysicalCamera
+    , public pxr::TfWeakBase // Required for this to listen to stage events.
+{
+public:
+    /**
+     * \brief Constructor
+     */
+    USDCameraObject();
+
+    /**
+     * \brief Destructor.
+     */
+    ~USDCameraObject() override;
+
+    // Object/Animatable overrides.
+    ObjectState          Eval(TimeValue t) override;
+    void                 InitNodeName(MSTR& name) override;
+    const MCHAR*         GetObjectName(bool localized) const override;
+    CreateMouseCallBack* GetCreateMouseCallBack() override;
+    void                 SetReference(int i, RefTargetHandle rtarg) override;
+    int                  NumRefs() override;
+    ReferenceTarget*     GetReference(int i) override;
+    int                  NumParamBlocks() override;
+    IParamBlock2*        GetParamBlock(int i) override;
+    IParamBlock2*        GetParamBlockByID(BlockID id) override;
+    int                  NumSubs() override;
+    Animatable*          SubAnim(int i) override;
+    TSTR                 SubAnimName(int i, bool localized) override;
+    int                  SubNumToRefNum(int subNum) override;
+    RefTargetHandle      Clone(RemapDir& remap);
+    void                 BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev) override;
+    void                 EndEditParams(IObjParam* ip, ULONG flags, Animatable* next) override;
+    RefResult            NotifyRefChanged(
+                   const Interval& changeInt,
+                   RefTargetHandle hTarget,
+                   PartID&         partID,
+                   RefMessage      message,
+                   BOOL            propagate) override;
+    void     GetWorldBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box) override;
+    void     GetLocalBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box) override;
+    Class_ID ClassID() override;
+    int      IsRenderable() override;
+    Interval ObjectValidity(TimeValue time) override;
+    int
+    HitTest(TimeValue t, INode* inode, int type, int crossing, int flags, IPoint2* p, ViewExp* vpt)
+        override;
+    void Snap(TimeValue t, INode* inode, SnapInfo* snap, IPoint2* p, ViewExp* vpt) override;
+    void SetExtendedDisplay(int flags) override;
+    int  Display(TimeValue t, INode* inode, ViewExp* vpt, int flags) override;
+    unsigned long GetObjectDisplayRequirement() const override;
+    bool
+    PrepareDisplay(const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext) override;
+    bool UpdatePerNodeItems(
+        const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+        MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+        MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer) override;
+
+    // GenCamera / IPhysicalCamera overrides.
+    RefResult  EvalCameraState(TimeValue time, Interval& valid, CameraState* cs) override;
+    void       SetOrtho(BOOL b) override;
+    BOOL       IsOrtho() override;
+    void       SetFOV(TimeValue t, float f) override;
+    float      GetFOV(TimeValue t, Interval& valid) override;
+    void       SetTDist(TimeValue t, float f) override;
+    float      GetTDist(TimeValue t, Interval& valid) override;
+    int        GetManualClip() override;
+    void       SetManualClip(int onOff) override;
+    float      GetClipDist(TimeValue t, int which, Interval& valid) override;
+    void       SetClipDist(TimeValue t, int which, float val) override;
+    void       SetEnvRange(TimeValue time, int which, float f) override;
+    float      GetEnvRange(TimeValue t, int which, Interval& valid) override;
+    void       SetEnvDisplay(BOOL b, int notify) override;
+    BOOL       GetEnvDisplay() override;
+    void       RenderApertureChanged(TimeValue t) override;
+    GenCamera* NewCamera(int type) override;
+    void       SetConeState(int s) override;
+    int        GetConeState() override;
+    void       SetHorzLineState(int s) override;
+    int        GetHorzLineState() override;
+    void       Enable(int enab) override;
+    BOOL       SetFOVControl(Control* c) override;
+    void       SetFOVType(int ft) override;
+    int        GetFOVType() override;
+    Control*   GetFOVControl() override;
+    int        Type() override;
+    void       SetType(int tp) override;
+    float      GetFilmWidth(const TimeValue t, Interval& validity) const override;
+    float      GetEffectiveLensFocalLength(const TimeValue t, Interval& validity) const override;
+    float      GetCropZoomFactor(const TimeValue t, Interval& validity) const override;
+    float GetLensApertureRadius(const TimeValue t, Interval& validity, const bool adjustForBlades)
+        const override;
+    float      GetLensApertureFNumber(const TimeValue t, Interval& validity) const override;
+    bool       GetMotionBlurEnabled(const TimeValue t, Interval& validity) const override;
+    float      GetShutterDurationInFrames(const TimeValue t, Interval& validity) const override;
+    float      GetShutterOffsetInFrames(const TimeValue t, Interval& validity) const override;
+    float      GetFocusDistance(const TimeValue t, Interval& validity) const override;
+    float      GetEffectiveISO(const TimeValue t, Interval& validity) const override;
+    float      GetEffectiveEV(const TimeValue t, Interval& validity) const override;
+    Color      GetWhitePoint(const TimeValue t, Interval& validity) const override;
+    float      GetExposureVignettingAmount(const TimeValue t, Interval& validity) const override;
+    bool       GetDOFEnabled(const TimeValue t, Interval& validity) const override;
+    BokehShape GetBokehShape(const TimeValue t, Interval& validity) const override;
+    int        GetBokehNumberOfBlades(const TimeValue t, Interval& validity) const override;
+    float      GetBokehBladesRotationDegrees(const TimeValue t, Interval& validity) const override;
+    Texmap*    GetBokehTexture(const TimeValue t, Interval& validity) const override;
+    bool       GetBokehTextureAffectExposure(const TimeValue t, Interval& validity) const override;
+    float      GetBokehOpticalVignetting(const TimeValue t, Interval& validity) const override;
+    float      GetBokehCenterBias(const TimeValue t, Interval& validity) const override;
+    float      GetBokehAnisotropy(const TimeValue t, Interval& validity) const override;
+    LensDistortionType GetLensDistortionType(const TimeValue t, Interval& validity) const override;
+    float   GetLensDistortionCubicAmount(const TimeValue t, Interval& validity) const override;
+    Texmap* GetLensDistortionTexture(const TimeValue t, Interval& validity) const override;
+    Point2  GetFilmPlaneOffset(const TimeValue t, Interval& validity) const override;
+    Point2  GetTiltCorrection(const TimeValue t, Interval& validity) const override;
+
+    /**
+     * \brief Returns the USD Camera used as source for the camera.
+     * \return The USD camera. Can be invalid.
+     */
+    const pxr::UsdGeomCamera& GetUsdCamera();
+
+private:
+    /**
+     * \brief Updates the camera for the given time if necessary.
+     * \param time The time to update to.
+     */
+    void Update(TimeValue time);
+
+    /**
+     * \brief OnStageChange event handler.
+     * \param notice The stage objects changed notice - contains a reference to the changed stage.
+     */
+    void OnStageChange(pxr::UsdNotice::ObjectsChanged const& notice);
+
+    // IPhysical camera override. Taken as-is from the PhysicalCamera implementation.
+    // We cant just forward it to the internal camera, as the function is private.
+    bool SetEvaluatingRenderTransform(const bool evaluatingRenderTransform) override;
+    bool evaluateRenderTransform = true;
+
+    /// A concrete 3dsMax physical camera that we use to represent the USD camera.
+    IPhysicalCamera* internalCamera;
+    /// Paramblock, configuring the source stage and camera path.
+    IParamBlock2* paramBlock;
+    /// The stage node this camera sources its data from.
+    INode* stageNode = nullptr;
+    /// The USD camera this camera sources its data from.
+    pxr::UsdGeomCamera usdCamera;
+    /// The last time at which the camera conversion from USD took place.
+    pxr::UsdTimeCode conversionTimeCode = pxr::UsdTimeCode::Default();
+    // Initializing options takes some time. Keep an instance on which we will only
+    // need to update the conversion time.
+    MaxUsd::MaxSceneBuilderOptions conversionOptions;
+    // Notice to react to changed to the stage - might need to refresh the camera.
+    pxr::TfNotice::Key onStageChangeNotice;
+};
diff --git a/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.cpp b/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.cpp
new file mode 100644
index 0000000..658785d
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.cpp
@@ -0,0 +1,85 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "UsdCameraObjectclassDesc.h"
+
+#include "USDStageObject.h"
+#include "UsdCameraObject.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/Views/UsdCameraObjectRollup.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+#include <maxscript/foundation/arrays.h>
+#include <maxscript/foundation/strings.h>
+
+#include <QVBoxLayout>
+
+namespace {
+const std::wstring usdCameraClassName = L"USDCameraObject";
+}
+
+int USDCameraObjectclassDesc::IsPublic()
+{
+    // Don't want users to be able to directly instanciate the USD cameras.
+    return false;
+}
+
+void* USDCameraObjectclassDesc::Create(BOOL loading) { return new USDCameraObject(); }
+
+const MCHAR* USDCameraObjectclassDesc::ClassName() { return usdCameraClassName.c_str(); }
+
+Class_ID USDCameraObjectclassDesc::ClassID() { return USDCAMERAOBJECT_CLASS_ID; }
+
+const MCHAR* USDCameraObjectclassDesc::InternalName() { return usdCameraClassName.c_str(); }
+
+const MCHAR* USDCameraObjectclassDesc::NonLocalizedClassName()
+{
+    return usdCameraClassName.c_str();
+}
+
+SClass_ID USDCameraObjectclassDesc::SuperClassID() { return CAMERA_CLASS_ID; }
+
+const MCHAR* USDCameraObjectclassDesc::Category() { return GetString(IDS_USD_CATEGORY); }
+
+HINSTANCE USDCameraObjectclassDesc::HInstance() { return hInstance; }
+
+MaxSDK::QMaxParamBlockWidget* USDCameraObjectclassDesc::CreateQtWidget(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock,
+    const MapID     paramMapID,
+    MSTR&           rollupTitle,
+    int&            rollupFlags,
+    int&            rollupCategory)
+{
+    switch (paramMapID) {
+    case USDCameraMapID_General: {
+        const auto cameraUI = new UsdCameraObjectRollup(owner, paramBlock);
+        rollupTitle = GetString(IDS_USDCAMERA_ROLL_OUT);
+        return cameraUI;
+    }
+    }
+    return nullptr;
+}
+
+ClassDesc2* GetUSDCameraObjectClassDesc()
+{
+    static USDCameraObjectclassDesc classDesc;
+    return &classDesc;
+}
diff --git a/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.h b/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.h
new file mode 100644
index 0000000..2c78b0a
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDCameraObjectClassDesc.h
@@ -0,0 +1,45 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <iparamb2.h>
+
+class USDCameraObjectclassDesc : public ClassDesc2
+{
+public:
+    int          IsPublic() override;
+    void*        Create(BOOL loading = FALSE) override;
+    const MCHAR* ClassName() override;
+    const MCHAR* NonLocalizedClassName() override;
+    Class_ID     ClassID() override;
+
+    const MCHAR* InternalName() override;
+
+    HINSTANCE HInstance() override;
+
+    MaxSDK::QMaxParamBlockWidget* CreateQtWidget(
+        ReferenceMaker& owner,
+        IParamBlock2&   paramBlock,
+        const MapID     BparamMapID,
+        MSTR&           rollupTitle,
+        int&            rollupFlags,
+        int&            rollupCategory);
+
+    SClass_ID    SuperClassID() override;
+    const MCHAR* Category() override;
+};
+
+ClassDesc2* GetUSDCameraObjectClassDesc();
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDSnaps.cpp b/src/MaxUsdObjects/Objects/USDSnaps.cpp
new file mode 100644
index 0000000..74c0608
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDSnaps.cpp
@@ -0,0 +1,186 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDSnaps.h"
+
+#include <osnapapi.h>
+
+Class_ID USDSNAPS_CLASS_ID(0x795d1720, 0x27b303d7);
+
+#define VERTEX_SUB 0
+#define EDGE_SUB   1
+#define FACE_SUB   2
+
+const MCHAR* USDSnaps::Category() { return GetString(IDS_CATEGORY); }
+
+ClassDesc2* GetUSDSnapsClassDesc()
+{
+    static USDSnapsClassDesc USDSnapsDesc;
+    return &USDSnapsDesc;
+}
+
+int USDSnaps::numsubs() { return 3; }
+
+MSTR* USDSnaps::snapname(int index)
+{
+    static MSTR vertex(GetString(IDS_USDSNAPS_VERTEX));
+    static MSTR edge(GetString(IDS_USDSNAPS_EDGE));
+    static MSTR face(GetString(IDS_USDSNAPS_FACE));
+
+    switch (index) {
+    case VERTEX_SUB: return &vertex;
+    case EDGE_SUB: return &edge;
+    case FACE_SUB: return &face;
+    default: DbgAssert("Unsupported snap index" && 0); return nullptr;
+    }
+}
+
+MSTR USDSnaps::iconName(int index) const
+{
+    static MSTR vertexIcon = MSTR(_T("Common/Vertex"));
+    static MSTR edgeIcon = MSTR(_T("SnapTools/MaxSDK/Xmesh/EdgeSegment"));
+    static MSTR faceIcon = MSTR(_T("Common/Face"));
+
+    switch (index) {
+    case VERTEX_SUB: return vertexIcon;
+    case EDGE_SUB: return edgeIcon;
+    case FACE_SUB: return faceIcon;
+    default: DbgAssert("Unsupported snap index" && 0); return {};
+    }
+}
+
+boolean USDSnaps::ValidInput(SClass_ID, Class_ID cid) { return cid == USDSTAGEOBJECT_CLASS_ID; }
+
+OsnapMarker* USDSnaps::GetMarker(int index)
+{
+    // These describe the geometry of the markers that appear in the viewport on snap points.
+
+    static IPoint3 verterMarkerPoints[4]
+        = { IPoint3(-5, 0, 0), IPoint3(5, 0, 0), IPoint3(0, -5, 0), IPoint3(0, 5, 0) };
+    static int vertexMarkerEdgeInfo[4] = { GW_EDGE_VIS, GW_EDGE_SKIP, GW_EDGE_VIS, GW_EDGE_VIS };
+    static OsnapMarker vertexMarker { 4, verterMarkerPoints, vertexMarkerEdgeInfo };
+
+    static IPoint3 edgeMarkerPoints[5] = {
+        IPoint3(5, 5, 0), IPoint3(-5, 5, 0), IPoint3(-5, -5, 0), IPoint3(5, -5, 0), IPoint3(5, 5, 0)
+    };
+    static int edgeMarkerEdgeInfo[5]
+        = { GW_EDGE_VIS, GW_EDGE_VIS, GW_EDGE_VIS, GW_EDGE_VIS, GW_EDGE_VIS };
+    static OsnapMarker edgeMarker { 5, edgeMarkerPoints, edgeMarkerEdgeInfo };
+
+    static IPoint3 faceMarkerPoints[4]
+        = { IPoint3(5, -5, 0), IPoint3(0, 5, 0), IPoint3(-5, -5, 0), IPoint3(5, -5, 0) };
+    static int faceMarkerEdgeInfo[4] = { GW_EDGE_VIS, GW_EDGE_VIS, GW_EDGE_VIS, GW_EDGE_VIS };
+    static OsnapMarker faceMarker { 4, faceMarkerPoints, faceMarkerEdgeInfo };
+
+    switch (index) {
+    case VERTEX_SUB: return &vertexMarker;
+    case EDGE_SUB: return &edgeMarker;
+    case FACE_SUB: return &faceMarker;
+    default: DbgAssert("Unsupported snap index" && 0); return {};
+    }
+}
+
+HBITMAP USDSnaps::getTools()
+{
+    return nullptr; // unused
+}
+
+HBITMAP USDSnaps::getMasks()
+{
+    return nullptr; // unused
+}
+
+WORD USDSnaps::AccelKey(int)
+{
+    return 0; // unused
+}
+
+void USDSnaps::Snap(Object* pobj, IPoint2* point, TimeValue time)
+{
+    if (pobj->ClassID() != USDSTAGEOBJECT_CLASS_ID) {
+        return;
+    }
+
+    USDStageObject* stageObject = dynamic_cast<USDStageObject*>(pobj);
+    if (!stageObject) {
+        return;
+    }
+
+    auto objectTM = theman->GetNode()->GetObjectTM(time);
+    objectTM.Invert();
+
+    // To prevent "self-snapping", exclude any currently displayed selection from snapping.
+    const auto selection = stageObject->GetHydraEngine()->GetRenderDelegate()->GetSelection();
+    const auto excludedPaths = selection->GetAllSelectedPrimPaths();
+
+    HitRegion hitRegion;
+    MakeHitRegion(hitRegion, POINT_RGN, false, theman->GetSnapStrength() /*epsilon*/, point);
+
+    // Assume we're snapping in the active viewport.
+    ViewExp* viewport = &GetCOREInterface()->GetActiveViewExp();
+
+    // Record hits for a sub snap mode.
+    auto recordHits
+        = [&objectTM, &stageObject, &excludedPaths, &hitRegion, &viewport, time, this](
+              int sub, const pxr::TfToken& pickMode, pxr::UsdImagingGLDrawMode drawMode) {
+              if (!GetActive(sub)) {
+                  return;
+              }
+              const auto hits = stageObject->PickStage(
+                  viewport, theman->GetNode(), hitRegion, drawMode, pickMode, time, excludedPaths);
+              for (int i = 0; i < hits.size(); ++i) {
+                  auto hitPoint = objectTM.PointTransform(
+                      { hits[i].hitPoint.x, hits[i].hitPoint.y, hits[i].hitPoint.z });
+                  theman->RecordHit(new OsnapHit(hitPoint, this, sub, nullptr));
+              }
+          };
+
+    const auto isWireframe = viewport->IsWire();
+
+    // In wireframe we want to hit backfacing points and edges. Render only points/edges and target
+    // prims. When not in wireframe, render geometry normally, but with points or edges as pick
+    // targets.
+
+    // Snap onto vertices.
+    {
+        auto target = isWireframe ? pxr::HdxPickTokens->pickPrimsAndInstances
+                                  : pxr::HdxPickTokens->pickPoints;
+        auto drawMode = isWireframe ? pxr::UsdImagingGLDrawMode::DRAW_POINTS
+                                    : pxr::UsdImagingGLDrawMode::DRAW_GEOM_ONLY;
+        recordHits(VERTEX_SUB, target, drawMode);
+    }
+
+    // Snap onto edges
+    {
+        const auto target = isWireframe ? pxr::HdxPickTokens->pickPrimsAndInstances
+                                        : pxr::HdxPickTokens->pickEdges;
+        auto       drawMode = isWireframe ? pxr::UsdImagingGLDrawMode::DRAW_WIREFRAME
+                                          : pxr::UsdImagingGLDrawMode::DRAW_GEOM_ONLY;
+        recordHits(EDGE_SUB, target, drawMode);
+    }
+
+    // Snap onto faces
+    {
+        // For face, mimic the standard snapping behavior, do not use the snap strength, and allow
+        // snapping onto faces even while the viewport is showing wireframe. Need to actually be
+        // over geometry to snap onto faces.
+        hitRegion.epsilon = 1;
+        recordHits(
+            FACE_SUB,
+            pxr::HdxPickTokens->pickPrimsAndInstances,
+            pxr::UsdImagingGLDrawMode::DRAW_GEOM_ONLY);
+    }
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDSnaps.h b/src/MaxUsdObjects/Objects/USDSnaps.h
new file mode 100644
index 0000000..4a13444
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDSnaps.h
@@ -0,0 +1,66 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MaxUsdObjects/DLLEntry.h"
+#include "MaxUsdObjects/Objects/USDStageObject.h"
+#include "MaxUsdObjects/resource.h"
+
+#include <osnap.h>
+#include <osnaphit.h>
+
+extern Class_ID USDSNAPS_CLASS_ID;
+
+class USDSnaps : public Osnap
+{
+public:
+    // Osnap overrides
+    Class_ID     ClassID() override { return USDSNAPS_CLASS_ID; }
+    int          numsubs() override;
+    MSTR*        snapname(int index) override;
+    MSTR         iconName(int index) const override;
+    boolean      ValidInput(SClass_ID scid, Class_ID cid) override;
+    OsnapMarker* GetMarker(int index) override;
+    HBITMAP      getTools() override;
+    HBITMAP      getMasks() override;
+    WORD         AccelKey(int index) override;
+    void         Snap(Object* pobj, IPoint2* p, TimeValue t) override;
+    const MCHAR* Category() override;
+};
+
+class USDSnapsClassDesc : public ClassDesc2
+{
+public:
+    int IsPublic() override { return TRUE; }
+
+    void* Create(BOOL /*loading = FALSE*/) override { return new USDSnaps(); }
+
+    const TCHAR* ClassName() override { return GetString(IDS_USDSNAPS_CLASS_NAME); }
+
+    const TCHAR* NonLocalizedClassName() override { return _T("USDSnaps"); }
+
+    SClass_ID SuperClassID() override { return OSNAP_CLASS_ID; }
+
+    Class_ID ClassID() override { return USDSNAPS_CLASS_ID; }
+
+    const TCHAR* Category() override { return GetString(IDS_CATEGORY); }
+
+    const TCHAR* InternalName() override { return _T("USDSnaps"); }
+
+    HINSTANCE HInstance() override { return hInstance; }
+};
+
+ClassDesc2* GetUSDSnapsClassDesc();
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDStageObject.cpp b/src/MaxUsdObjects/Objects/USDStageObject.cpp
new file mode 100644
index 0000000..8c2e777
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDStageObject.cpp
@@ -0,0 +1,3663 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDStageObject.h"
+
+#include "CreateCallbacks/CreateAtPosition.h"
+#include "USDStageObjectIcon.h"
+#include "USDStageObjectclassDesc.h"
+#include "USDTransformControllers.h"
+#include "UsdCameraObject.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/MaxUsdUfe/MaxUfeUndoableCommandMgr.h>
+#include <MaxUsdObjects/MaxUsdUfe/QmaxUsdUfeAttributesWidget.h>
+#include <MaxUsdObjects/MaxUsdUfe/StageObjectMap.h>
+#include <MaxUsdObjects/MaxUsdUfe/UfeUtils.h>
+#include <MaxUsdObjects/Objects/SubobjectManips.h>
+#include <MaxUsdObjects/USDAssetAccessor.h>
+#include <MaxUsdObjects/USDExplorer.h>
+#include <MaxUsdObjects/USDPickingRenderer.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <RenderDelegate/HdMaxConsolidator.h>
+#include <RenderDelegate/HdMaxDisplayPreferences.h>
+#include <UFEUI/ReplaceSelectionCommand.h>
+
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/MeshUtils.h>
+#include <MaxUsd/Utilities/MxsUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/PluginUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <usdUfe/ufe/UsdSceneItem.h>
+#include <usdUfe/utils/loadRules.h>
+
+#include <pxr/usd/kind/registry.h>
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usd/stageCacheContext.h>
+#include <pxr/usd/usdGeom/camera.h>
+#include <pxr/usd/usdGeom/metrics.h>
+
+#include <Graphics/CustomRenderItemHandle.h>
+#include <Graphics/IViewportViewSetting.h>
+#include <Graphics/Utilities/SplineRenderItem.h>
+#include <Graphics/ViewSystem/ViewParameter.h>
+#include <Qt/QMaxParamBlockWidget.h>
+#include <Qt/QmaxRollup.h>
+#include <Qt/QmaxSpinBox.h>
+#include <maxscript/maxscript.h>
+#include <maxscript/mxsplugin/mxsplugin.h>
+#include <ufe/attributes.h>
+#include <ufe/globalSelection.h>
+#include <ufe/observableSelection.h>
+#include <ufe/selection.h>
+#include <ufe/selectionNotification.h>
+#include <ufe/undoableCommandMgr.h>
+
+#include <IParamm2.h>
+#include <IPathConfigMgr.h>
+#include <QtWidgets/QtWidgets>
+#include <iparamb2.h>
+#include <irollupsettings.h>
+
+Class_ID USDSTAGEOBJECT_CLASS_ID(0x24ce4724, 0x14d2486b);
+
+// Bump this version number when saved data changes.
+static int       USD_OBJECT_DATA_SAVE_VERSION = 1;
+constexpr USHORT SAVE_VERSION_CHUNK_ID = 100;
+constexpr USHORT PRIMVAR_MAPPING_NAME_CHUNK_ID = 200;
+constexpr USHORT PRIMVAR_MAPPING_CHANNELS_CHUNK_ID = 300;
+constexpr USHORT SESSION_LAYER_CHUNK_ID = 400;
+constexpr USHORT PAYLOAD_RULES_CHUNK_ID = 500;
+
+SelectModBoxCMode*  USDStageObject::selectMode = nullptr;
+MoveModBoxCMode*    USDStageObject::moveMode = nullptr;
+RotateModBoxCMode*  USDStageObject::rotateMode = nullptr;
+UScaleModBoxCMode*  USDStageObject::uScaleMode = nullptr;
+NUScaleModBoxCMode* USDStageObject::nuScaleMode = nullptr;
+SquashModBoxCMode*  USDStageObject::squashMode = nullptr;
+
+bool                    USDStageObject::primAttributeRollupOpenStatesLoaded = false;
+std::map<QString, bool> USDStageObject::primAttributeRollupStates;
+std::map<QString, bool> USDStageObject::loadedPrimAttributeRollupStates;
+const QString           USDStageObject::rollupCategory = "USDStageObjectRollups";
+
+void USDStageObject::USDPBAccessor::PreSet(
+    PB2Value&       v,
+    ReferenceMaker* owner,
+    ParamID         id,
+    int             tabIndex,
+    TimeValue       t)
+{
+    auto setIfInBounds =
+        [](PB2Value& v, IParamBlock2* pb, ParamID id, TimeValue t, int lowerBound, int upperBound) {
+            int      currVar;
+            Interval valid = FOREVER;
+            pb->GetValue(id, t, currVar, valid);
+            int newVal = v.i;
+            if (newVal >= lowerBound && newVal <= upperBound) {
+                v.i = newVal;
+            } else {
+                v.i = currVar;
+            }
+        };
+
+    USDStageObject* stageObj = static_cast<USDStageObject*>(owner);
+    IParamBlock2*   pblock2 = stageObj->GetParamBlockByID(0);
+    if (pblock2) {
+        switch (id) {
+        case DisplayMode: {
+            setIfInBounds(v, pblock2, id, t, 0, 2);
+            break;
+        }
+        case AnimationMode: {
+            setIfInBounds(v, pblock2, id, t, 0, 3);
+            break;
+        }
+        }
+    }
+}
+
+void USDStageObject::USDPBAccessor::Get(
+    PB2Value&       v,
+    ReferenceMaker* owner,
+    ParamID         id,
+    int             tabIndex,
+    TimeValue       t,
+    Interval&       valid)
+{
+    auto saveString = [](const std::wstring& s) {
+        TCHAR* dest = new TCHAR[s.size() + 1]; // Size + 1 to null-terminate..
+        std::copy(s.begin(), s.end(), dest);
+        dest[s.size()] = '\0';
+        return dest;
+    };
+
+    USDStageObject* stageObj = static_cast<USDStageObject*>(owner);
+    IParamBlock2*   pblock2 = stageObj->GetParamBlockByID(0);
+
+    switch (id) {
+    case AxisAndUnitTransform: {
+        *v.m = MaxUsd::ToMaxMatrix3(stageObj->GetStageRootTransform());
+        break;
+    }
+    case CacheId: {
+        v.i = stageObj->GetStageCacheId();
+        break;
+    }
+    case Guid: {
+        auto       guid = MaxUsd::UsdStringToMaxString(stageObj->GetGuid());
+        const auto guidStr = guid.ToMCHAR();
+        v.s = saveString(guidStr);
+        break;
+    }
+    case SourceMetersPerUnit: {
+        auto stage = stageObj->GetUSDStage();
+        if (!stage) {
+            v.f = 0;
+        } else {
+            const float usdMetersPerUnit
+                = static_cast<float>(pxr::UsdGeomGetStageMetersPerUnit(stage));
+            v.f = usdMetersPerUnit;
+        }
+        break;
+    }
+    case SourceUpAxis: {
+        auto stage = stageObj->GetUSDStage();
+
+        if (!stage) {
+            v.s = saveString(L"N/A");
+        } else {
+            if (MaxUsd::IsStageUsingYUpAxis(stage)) {
+                v.s = saveString(L"Y");
+            } else {
+                v.s = saveString(L"Z");
+            }
+        }
+        break;
+    }
+    case PointedPrim: {
+        // PointedPrim must evaluate to the path of the prim currently under the cursor.
+        // We force a call to the ::HitTest() method via PickNode(). This also allows us
+        // make sure that we are indeed hovering over the stage (just looking that
+        // lastHit.primPath is not empty is not enough - as if the cursor is outside the
+        // bounding box, the object's HitTest() code is not even run.
+        POINT pt;
+        GetCursorPos(&pt);
+        ScreenToClient(MAXScript_interface->GetActiveViewExp().GetHWnd(), &pt);
+        const IPoint2 point(pt.x, pt.y);
+        const auto    pickedNode
+            = GetCOREInterface()->PickNode(GetCOREInterface()->GetActiveViewExp().GetHWnd(), point);
+        if (!pickedNode || pickedNode->GetObjectRef() != stageObj) {
+            v.s = saveString(L"");
+        } else {
+            v.s = saveString(MaxUsd::UsdStringToMaxString(
+                                 stageObj->hitTestingCache[pickedNode].hit.primPath.GetString())
+                                 .ToMCHAR());
+        }
+        break;
+    }
+    case SourceAnimationStartTimeCode: {
+        auto stage = stageObj->GetUSDStage();
+
+        v.f = stage ? stage->GetStartTimeCode() : 0.0f;
+        break;
+    }
+    case SourceAnimationEndTimeCode: {
+        auto stage = stageObj->GetUSDStage();
+
+        v.f = stage ? stage->GetEndTimeCode() : 0.0f;
+        break;
+    }
+    case SourceAnimationTPS: {
+        auto stage = stageObj->GetUSDStage();
+
+        v.f = stage ? stage->GetTimeCodesPerSecond() : 0.0f;
+        break;
+    }
+    case MaxAnimationStartFrame: {
+        auto stage = stageObj->GetUSDStage();
+
+        if (!stage) {
+            v.f = 0.f;
+        } else {
+            int      animMode;
+            Interval valid = FOREVER;
+            pblock2->GetValue(AnimationMode, t, animMode, valid);
+            float customStartFrame;
+            pblock2->GetValue(CustomAnimationStartFrame, t, customStartFrame, valid);
+
+            auto stageStartCode = stage->GetStartTimeCode();
+            if (animMode == AnimationMode::OriginalRange) {
+                auto computedValue = MaxUsd::GetMaxFrameFromUsdTimeCode(stage, stageStartCode);
+                v.f = computedValue;
+            } else if (animMode == AnimationMode::CustomTimeCodePlayback) {
+                v.f = stageStartCode;
+            } else {
+                v.f = customStartFrame;
+            }
+        }
+        break;
+    }
+    case MaxAnimationEndFrame: {
+        auto stage = stageObj->GetUSDStage();
+
+        if (!stage) {
+            v.f = 0.f;
+        } else {
+            int      animMode;
+            Interval valid = FOREVER;
+            pblock2->GetValue(AnimationMode, t, animMode, valid);
+            float customStartFrame;
+            pblock2->GetValue(CustomAnimationStartFrame, t, customStartFrame, valid);
+            float customEndFrame;
+            pblock2->GetValue(CustomAnimationEndFrame, t, customEndFrame, valid);
+            float customSpeed;
+            pblock2->GetValue(CustomAnimationSpeed, t, customSpeed, valid);
+
+            auto stageStartCode = stage->GetStartTimeCode();
+            auto stageEndCode = stage->GetEndTimeCode();
+            if (animMode == AnimationMode::OriginalRange) {
+                auto computedValue = MaxUsd::GetMaxFrameFromUsdTimeCode(stage, stageEndCode);
+                v.f = computedValue;
+            } else if (animMode == AnimationMode::CustomTimeCodePlayback) {
+                v.f = stageEndCode;
+            } else if (animMode == AnimationMode::CustomRange) {
+                v.f = customEndFrame;
+            } else {
+                auto stageAnimeLengthInTimeCodes = stageEndCode - stageStartCode;
+                auto computedValue = customStartFrame;
+                if (customSpeed != 0.f) {
+                    computedValue = customStartFrame
+                        + (MaxUsd::GetMaxFrameFromUsdTimeCode(stage, stageAnimeLengthInTimeCodes)
+                           / customSpeed);
+                }
+
+                v.f = computedValue;
+            }
+        }
+        break;
+    }
+    case RenderUsdTimeCode: {
+        auto stage = stageObj->GetUSDStage();
+
+        if (!stage) {
+            v.f = 0.f;
+        } else {
+            // If the animation is playing, render at the beginning of the current frame,
+            // to ease caching
+            TimeValue time = t;
+            if (GetCOREInterface()->IsAnimPlaying()) {
+                time = time - time % GetTicksPerFrame();
+            }
+
+            auto timeCodeSample = stageObj->ResolveRenderTimeCode(time).GetValue();
+            v.f = timeCodeSample;
+        }
+    }
+    }
+}
+
+namespace {
+
+static USDStageObject::USDPBAccessor pbAccessor;
+
+// clang-format off
+static FPInterfaceDesc usdStageInterface(
+	IUSDStageProvider_ID, _T("usdStageOps"), 0, GetUSDStageObjectClassDesc(), FP_MIXIN,
+	fnIdReload, _T("Reload"), "Reload the Stage's layers from disk.", TYPE_VOID, 0, 0,
+	fnIdClearSessionLayer, _T("ClearSessionLayer"), "Clears the session layer.", TYPE_VOID, 0, 0,
+	fnIdOpenInUsdExplorer, _T("OpenInUsdExplorer"), "Open the stage in the USD Explorer.", TYPE_VOID, 0, 0,
+	fnIdCloseInUsdExplorer, _T("CloseInUsdExplorer"), "Close the stage in the USD Explorer.", TYPE_VOID, 0, 0,
+	fnIdSetRootLayer, _T("SetRootLayer"), "Sets the USD Stage's root layer and mask", TYPE_VOID, 0, 3,
+		_T("rootLayer"), 0, TYPE_STRING,
+		_T("stageMask"), 0, TYPE_STRING, f_keyArgDefault, _T("/"),
+		_T("payloadsLoaded"), 0, TYPE_BOOL, f_keyArgDefault, TRUE,
+	fnIdGetUsdPreviewSurfaceMaterials, _T("GetUsdPreviewSurfaceMaterials"), "Returns the MultiMaterial carrying converted UsdPreviewSurface materials, which can be used for offline rendering if applied to the UsdStage node.", TYPE_MTL, 0, 1,
+		_T("sync"), 0, TYPE_BOOL, f_keyArgDefault, TRUE,
+
+	fnIdSetPrimvarChannelMappingDefaults, _T("SetPrimvarChannelMappingDefaults"), "Reset to defaults primvar to channel mappings.", TYPE_VOID, FP_NO_REDRAW, 0,
+	fnIdSetPrimvarChannelMapping, _T("SetPrimvarChannelMapping"), "Sets a primvar to channel mapping", TYPE_VOID, FP_NO_REDRAW, 2,
+		_T("primvar"), 0, TYPE_STRING,
+		_T("targetChannel"), 0, TYPE_VALUE,
+	fnIdGetPrimvarChannel, _T("GetPrimvarChannel"), "Returns the channel the given primvar should map too.", TYPE_VALUE, FP_NO_REDRAW, 1,
+		_T("primvar"), 0, TYPE_STRING,
+	fnIdIsMappedPrimvar, _T("IsMappedPrimvar"), "Returns whether this primvar is mapped to a channel.", TYPE_BOOL, FP_NO_REDRAW, 1,
+		_T("primvar"), 0, TYPE_STRING,
+	fnIdGetMappedPrimvars, _T("GetMappedPrimvars"), "Returns the list of currently mapped primvars.", TYPE_STRING_TAB_BV, FP_NO_REDRAW, 0,
+	fnIdClearMappedPrimvars, _T("ClearMappedPrimvars"), "Clears all primvar to channel mappings.", TYPE_VOID, FP_NO_REDRAW, 0,
+	fnIdGenerateDrawModes, _T("GenerateDrawModes"), "Regenerate USD Draw Modes.", TYPE_VOID, 0, 0,
+	p_end
+);
+
+ParamBlockDesc2 propertiesParamblock(PBLOCK_REF, // The parameter block ID.
+	_M("USDStageObjectParamBlock"), // The internal name exposed to MaxScript
+	IDS_USDSTAGEOBJECT_ROLL_OUT, // The resource ID of a particular string in the string table
+	GetUSDStageObjectClassDesc(), // The address of your plug-in descriptor
+	// flags
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP, // This flag makes 3ds Max automatically create the paramblock for this object
+	PBLOCK_REF, // To satisfy P_AUTO_CONSTRUCT
+	// Define the multiple rollups we need.
+	6,
+	// The order matters, it is the default order in the UI.
+	// Use a different order for 2022 - in 2022 we cannot use the general
+	// progress bar, so we have an embedded one in the general rollout. 
+	// To increase the odds that this progress bar is visible on screen
+	// when materials are generated, bring the render settings window closer
+	// to the general rollout. In 2023+, the render settings is all the way 
+	// at the bottom.
+#ifdef IS_MAX2023_OR_GREATER
+	ParamMapID::UsdStageGeneral,
+	ParamMapID::UsdStageSelection,
+	ParamMapID::UsdStageViewportDisplay,
+	ParamMapID::UsdStageAnimation,
+	ParamMapID::UsdStageRenderSettings,
+	ParamMapID::UsdStageViewportPerformance,
+#else 
+	ParamMapID::UsdStageGeneral,
+	ParamMapID::UsdStageSelection,
+	ParamMapID::UsdStageRenderSettings,
+	ParamMapID::UsdStageViewportDisplay,
+	ParamMapID::UsdStageAnimation,
+	ParamMapID::UsdStageViewportPerformance,
+#endif
+	// Parameters
+	StageFile, _M("FilePath"), TYPE_FILENAME, P_RESET_DEFAULT | P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_FILEPATH,
+		p_default, _T(""),
+		p_assetTypeID, MaxSDK::AssetManagement::kOtherAsset, 
+		p_end,
+	StageMask, _M("StageMask"), TYPE_STRING, P_RESET_DEFAULT | P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_STAGE_MASK,
+		p_default, _T("/"),
+		p_end,
+	CacheId, _M("CacheId"), TYPE_INT, P_INVISIBLE | P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_CACHEID, 
+		p_accessor, &pbAccessor, p_range, 0, LONG_MAX,
+		p_end,
+	Guid, _M("Guid"), TYPE_STRING, P_INVISIBLE | P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_GUID, 
+		p_accessor, &pbAccessor,
+		p_end,
+	IsOpenInExplorer, _M("IsOpenInExplorer"), TYPE_BOOL, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_IS_OPEN_IN_EXPLORER, 
+		p_default, FALSE,
+		p_end,
+	AxisAndUnitTransform, _M("AxisAndUnitTransform"), TYPE_MATRIX3, P_INVISIBLE | P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_AXIS_AND_UNIT_TRANSFORM, 
+		p_accessor, &pbAccessor, 
+		p_end,
+	DisplayProxy, _M("DisplayProxy"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_PROXY, 
+		p_default, TRUE, 
+		p_end,
+	DisplayGuide, _M("DisplayGuide"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_GUIDE, 
+		p_default, FALSE, 
+		p_end,
+	DisplayRender, _M("DisplayRender"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_RENDER, 
+		p_default, FALSE, 
+		p_end,
+	DisplayMode, _M("DisplayMode"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_MODE, 
+		p_default, 0,
+		p_accessor, &pbAccessor,
+		p_end,
+	GeneratePointInstancesDrawModes, _M("GeneratePointInstancesDrawModes"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_GEN_POINT_INSTANCE_DRAW_MODES, 
+		p_default, TRUE,	
+		p_end,
+	PointInstancesDrawMode, _M("PointInstancesDrawMode"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_POINT_INSTANCE_DRAW_MODE,
+		p_default, DrawMode::BoxCards,
+		p_end,
+	ShowIcon, _M("ShowIcon"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_SHOW_ICON, 
+		p_default, TRUE, 
+		p_end, 
+	GenerateCameras, _M("GenerateCameras"), TYPE_BOOL, 0,
+		IDS_USDSTAGEOBJECT_ROLL_OUT_GENERATE_CAMERAS,
+		p_default, TRUE, 
+		p_end,
+	LoadPayloads, _M("LoadPayloads"), TYPE_BOOL, P_OBSOLETE | P_READ_ONLY | P_INVISIBLE, IDS_USDSTAGEOBJECT_ROLL_OUT_LOAD_PAYLOADS, 
+		p_default, TRUE,
+		p_end,
+	SourceMetersPerUnit, _M("SourceMetersPerUnit"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_METERS_PER_UNIT, 
+		p_accessor, &pbAccessor,
+		p_end,
+	SourceUpAxis, _M("SourceUpAxis"), TYPE_STRING, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_UP_AXIS,
+		p_accessor, &pbAccessor,
+		p_end, 
+	IconScale, _M("IconScale"), TYPE_FLOAT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_ICON_SCALE, 
+		p_default, 1.0f,
+		p_range, 0.f, 999999999.f,
+		p_end,
+	MeshMergeMode, _M("MeshMergeMode"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MODE,
+		p_default, HdMaxConsolidator::Strategy::Static, 
+		p_end,
+	MeshMergeDiagnosticView, _M("MeshMergeDiagnosticView"), TYPE_BOOL, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_DIAGNOSTICS, 
+		p_default, FALSE,
+		p_end,
+	MeshMergeMaxTriangles, _M("MeshMergeMaxTriangles"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_TRIANGLES,
+		p_default, 20000,
+		p_range, 0, 999999999,
+		p_end,
+	MeshMergeMaxInstances, _M("MeshMergeMaxInstances"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_INSTANCE_COUNT, 
+		p_default, 20,
+		p_range, 0, 999999999,
+		p_end,
+	MaxMergedMeshTriangles, _M("MaxMergedMeshTriangles"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_CELL_SIZE,
+		p_default, 200000,
+		p_range, 0, 999999999,
+		p_end,
+	PointedPrim, _M("PointedPrim"), TYPE_STRING, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_POINTED_PRIM,
+		p_accessor, &pbAccessor,
+		p_end,
+	CustomAnimationStartFrame, _M("CustomAnimationStartFrame"), TYPE_FLOAT, P_ANIMATABLE | P_RESET_DEFAULT, IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_START_FRAME, 
+		p_default, 0.0f,
+		p_range, -9999999.f, 9999999.f,
+		p_end,
+	CustomAnimationSpeed, _M("CustomAnimationSpeed"), TYPE_FLOAT, P_ANIMATABLE | P_RESET_DEFAULT, IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_SPEED, 
+		p_default, 1.0f,
+		p_range, -9999999.f, 9999999.f,
+		p_end,
+	CustomAnimationEndFrame, _M("CustomAnimationEndFrame"), TYPE_FLOAT, P_ANIMATABLE | P_RESET_DEFAULT, IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_END_FRAME, 
+		p_default, 0.0f,
+		p_range, -9999999.f, 9999999.f,
+		p_end,
+	CustomAnimationPlaybackTimecode, _M("CustomAnimationPlaybackTimecode"), TYPE_FLOAT, P_ANIMATABLE | P_RESET_DEFAULT, IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_PLAYBACK_TIMECODE, 
+		p_default, 0.0f,
+		p_range, 0.f, 9999999.f,
+		p_end,
+	AnimationMode, _M("AnimationMode"), TYPE_INT, 0, IDS_USDSTAGEOBJECT_ROLL_OUT_ANIM_MODE, 
+		p_default, 0,
+		p_accessor, &pbAccessor,
+		p_end,
+	SourceAnimationStartTimeCode, _M("SourceAnimationStartTimeCode"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_START_TIME_CODE, 
+		p_accessor, &pbAccessor,
+		p_end,
+	SourceAnimationEndTimeCode, _M("SourceAnimationEndTimeCode"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_END_TIME_CODE,
+		p_accessor, &pbAccessor,
+		p_end, 
+	SourceAnimationTPS, _M("SourceAnimationTPS"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_TPS,
+		p_accessor, &pbAccessor,
+		p_end,
+	MaxAnimationStartFrame, _M("MaxAnimationStartFrame"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_START_FRAME, 
+		p_accessor, &pbAccessor,
+		p_end,
+	MaxAnimationEndFrame, _M("MaxAnimationEndFrame"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_END_FRAME,
+		p_accessor, &pbAccessor,
+		p_end,
+	RenderUsdTimeCode, _M("RenderUsdTimeCode"), TYPE_FLOAT, P_READ_ONLY, IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_RENDER_USD_TIMECODE,
+		p_accessor, &pbAccessor,
+		p_end,
+	KindSelection, _M("KindSelection"), TYPE_STRING, P_RESET_DEFAULT, IDS_USDSTAGEOBJECT_ROLL_OUT_KIND_SELECTION,
+		p_default, _T(""),
+		p_end,
+	p_end
+);
+// clang-format on
+
+inline std::vector<pxr::TfType> GetAllAncestorSchemaTypes(const pxr::UsdPrim& usdPrim)
+{
+    std::vector<pxr::TfType> result;
+    if (usdPrim) {
+        auto& info = usdPrim.GetPrimTypeInfo();
+        auto& type = info.GetSchemaType();
+
+        static std::map<pxr::TfType, std::vector<pxr::TfType>> cache;
+        auto                                                   it = cache.find(type);
+        if (it != cache.end()) {
+            return it->second;
+        }
+
+        std::vector<pxr::TfType> types;
+        type.GetAllAncestorTypes(&types);
+
+        for (auto& t : types) {
+            if (!type.IsA<pxr::UsdSchemaBase>()) {
+                continue;
+            }
+            result.push_back(t);
+        }
+
+        cache[type] = result;
+    }
+    return result;
+}
+
+} // namespace
+
+FPInterfaceDesc* USDStageObject::GetDesc() { return &usdStageInterface; }
+
+static void NotifyTimeRangeChanged(void* param, NotifyInfo* /*info*/)
+{
+    USDStageObject* usdStageObject = static_cast<USDStageObject*>(param);
+    // Timeline FPS may have changed, clear the bounding box cache.
+    usdStageObject->ClearBoundingBoxCache();
+}
+
+static void NotifySelectionHighlightConfigChanged(void* param, NotifyInfo* /*info*/)
+{
+    const auto usdStageObject = static_cast<USDStageObject*>(param);
+    usdStageObject->DirtySelectionDisplay();
+}
+
+static void NotifyUnitsChanged(void* param, NotifyInfo* /*info*/)
+{
+    // The hydra render depends on the transform to adjust for the USD axis and units VS the 3dsMax
+    // units. If units change, the render is no longer valid, the cached bounding boxes neither.
+    USDStageObject* usdStageObject = static_cast<USDStageObject*>(param);
+    usdStageObject->ClearBoundingBoxCache();
+    // As the USD Stage is a reference, changing the 3dsMax system units will change the stage's
+    // representation in the viewport (scaled up or down, depending on the stage's units). So we
+    // tell the object to redraw itself.
+    usdStageObject->Redraw();
+}
+
+static void NotifyNodeDeleted(void* param, NotifyInfo* info)
+{
+    if (!info->callParam) {
+        return;
+    }
+    const auto deletedNode = static_cast<INode*>(info->callParam);
+    const auto usdStageObject = static_cast<USDStageObject*>(param);
+    if (!usdStageObject || deletedNode->GetObjectRef() != usdStageObject) {
+        return;
+    }
+
+    // Remove any entry for this node in the hitTesting cache.
+    usdStageObject->hitTestingCache.erase(deletedNode);
+    // Cleanup any cameras associated with this stage object.
+    usdStageObject->DeleteCameraNodes(deletedNode);
+}
+
+static void NotifyNodeCreated(void* param, NotifyInfo* info)
+{
+    if (!info->callParam) {
+        return;
+    }
+    const auto addedNode = static_cast<INode*>(info->callParam);
+    const auto usdStageObject = static_cast<USDStageObject*>(param);
+    if (!usdStageObject || addedNode->GetObjectRef() != usdStageObject) {
+        return;
+    }
+
+    // While cloning, node created notification are sent for the transient objects that
+    // are created in the scene to preview the clone. No need to react to those (and it would
+    // actually lead to issues - as those transient nodes are created outside of holds).
+    if (usdStageObject->inCloneOperation) {
+        return;
+    }
+
+    usdStageObject->BuildCameraNodes(addedNode);
+}
+
+static void NotifyNodePreClone(void* param, NotifyInfo* info)
+{
+    if (!info->callParam) {
+        return;
+    }
+    const auto usdStageObject = static_cast<USDStageObject*>(param);
+    if (!usdStageObject) {
+        return;
+    }
+    usdStageObject->inCloneOperation = true;
+}
+
+static void NotifyNodePostClone(void* param, NotifyInfo* info)
+{
+    if (!info->callParam) {
+        return;
+    }
+
+    const auto usdStageObject = static_cast<USDStageObject*>(param);
+    if (!usdStageObject) {
+        return;
+    }
+    usdStageObject->inCloneOperation = false;
+
+    const auto cloneInfo = static_cast<MaxSDKSupport::NotifyPostNodesCloned*>(info->callParam);
+    if (!cloneInfo) {
+        return;
+    }
+
+    auto clonedNodes = MaxSDKSupport::GetClonedNodes(cloneInfo);
+    for (int i = 0; i < clonedNodes->Count(); ++i) {
+        auto node = (*clonedNodes)[i];
+        if (dynamic_cast<USDStageObject*>(node->GetObjectRef())) {
+            usdStageObject->BuildCameraNodes(node);
+            // Force a refresh of the cameras.
+            Interval valid = FOREVER;
+            usdStageObject->ForceNotify(valid);
+        }
+    }
+}
+
+bool GetParamBlockBool(IParamBlock2* paramBlock, PBParameterIds id)
+{
+    BOOL     value = false;
+    Interval valid;
+    paramBlock->GetValue(id, GetCOREInterface()->GetTime(), value, valid);
+    return static_cast<bool>(value);
+}
+
+int GetParamBlockInt(IParamBlock2* paramBlock, PBParameterIds id)
+{
+    int      value = 0;
+    Interval valid;
+    paramBlock->GetValue(id, GetCOREInterface()->GetTime(), value, valid);
+    return value;
+}
+
+float GetParamBlockFloat(IParamBlock2* paramBlock, PBParameterIds id)
+{
+    float    value = 0.0;
+    Interval valid;
+    paramBlock->GetValue(id, GetCOREInterface()->GetTime(), value, valid);
+    return value;
+}
+
+void USDStageObject::CleanupPrimAttributeWidgets()
+{
+    for (const auto& w : primAttributeWidgets) {
+        if (w) {
+            if (!w->property("ignoreRollupOpenState").toBool()) {
+                if (auto rollup = dynamic_cast<MaxSDK::QmaxRollup*>(w->parentWidget())) {
+                    primAttributeRollupStates[rollup->title()] = rollup->isOpen();
+                }
+            }
+
+            if (ip) {
+                ip->DeleteRollupPage(*w);
+            } else {
+                w->deleteLater();
+            }
+        }
+    }
+    primAttributeWidgets.clear();
+}
+
+void USDStageObject::AdjustAttributeRollupsForSelection()
+{
+    // We need to remember the categories aka order of the common rollups,
+    // before removing the ones we won't show (based on the sub-object level and
+    // the current selection).
+    auto sid = this->SuperClassID();
+    auto cid = this->ClassID();
+
+    if (auto rollupSettings = GetIRollupSettings()) {
+        if (auto catReg = rollupSettings->GetCatReg()) {
+            std::vector<std::pair<MaxSDK::QmaxRollup*, int>> default_rollups;
+
+            if (auto pb = this->GetParamBlockByID(0)) {
+                for (auto mapID : { ParamMapID::UsdStageGeneral,
+                                    ParamMapID::UsdStageSelection,
+                                    ParamMapID::UsdStageViewportDisplay,
+                                    ParamMapID::UsdStageAnimation,
+                                    ParamMapID::UsdStageRenderSettings,
+                                    ParamMapID::UsdStageViewportPerformance }) {
+                    if (auto map = pb->GetMap(mapID)) {
+                        if (auto widget = map->GetQWidget()) {
+                            if (auto rollup
+                                = dynamic_cast<MaxSDK::QmaxRollup*>(widget->parentWidget())) {
+                                default_rollups.push_back(
+                                    { rollup,
+                                      catReg->GetCat(
+                                          sid,
+                                          cid,
+                                          rollup->title().toStdWString().c_str(),
+                                          rollup->category()) });
+                                if (mapID != ParamMapID::UsdStageSelection) {
+                                    const bool stageLevel = subObjectLevel == 0;
+                                    rollup->setVisible(stageLevel);
+                                    // The command panel relies on the "sizeHint" of the rollups to
+                                    // calculate on what column to display the rollups. When hidden,
+                                    // the rollups conserves the same sizeHint, therefor, trick QT
+                                    // into returning a (0,0) size hint, by also hiding the widget
+                                    // inside the rollup, and removing margins.
+                                    widget->setVisible(stageLevel);
+                                    static const auto contentMargins = rollup->contentsMargins();
+                                    rollup->setContentsMargins(
+                                        stageLevel ? contentMargins : QMargins { 0, 0, 0, 0 });
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            std::stable_sort(
+                default_rollups.begin(), default_rollups.end(), [](const auto& a, const auto& b) {
+                    return a.second < b.second;
+                });
+
+            // Clear all the data - this will remove all the entries for the
+            // current selection as well.
+            catReg->DeleteList(sid, cid);
+
+            // Add the default rollups back in the user-specified order.
+            int category = ROLLUP_CAT_STANDARD;
+
+#if MAX_VERSION_MAJOR >= 26 // 2024+
+            if (auto catReg2 = dynamic_cast<ICatRegistry2*>(catReg)) {
+                for (const auto& r : default_rollups) {
+                    catReg2->UpdateCat(
+                        sid,
+                        cid,
+                        r.first->title().toStdWString().c_str(),
+                        category++,
+                        r.first->isOpen());
+                }
+            } else {
+#endif
+                for (const auto& r : default_rollups) {
+                    catReg->UpdateCat(
+                        sid, cid, r.first->title().toStdWString().c_str(), category++);
+                }
+#if MAX_VERSION_MAJOR >= 26 // 2024+
+            }
+#endif
+            catReg->Save();
+        }
+    }
+
+    // remove old rollups
+    CleanupPrimAttributeWidgets();
+
+    if (subObjectLevel != 0 && ip) {
+        Ufe::Selection filteredSelection;
+        for (const auto& sceneItem : *Ufe::GlobalSelection::get()) {
+            if (sceneItem && sceneItem->path().startsWith(MaxUsd::ufe::getUsdStageObjectPath(this))
+                && !MaxUsd::ufe::isPointInstance(
+                    sceneItem)) // No rollout for point instances for now.
+            {
+                filteredSelection.append(sceneItem);
+            }
+        }
+        if (filteredSelection.empty()) {
+            return;
+        }
+
+        // add rollups
+        int category = 10000;
+
+        auto w = new QWidget();
+        auto l = new QGridLayout(w);
+
+        auto label = new QLabel(QApplication::translate("USDStageObject", "Name"));
+        auto textEdit = new QLineEdit();
+        textEdit->setReadOnly(true);
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+        label->setBuddy(textEdit);
+        l->addWidget(label, 0, 0);
+        l->addWidget(textEdit, 0, 1);
+
+        if (filteredSelection.size() == 1) {
+            auto selected_prim = filteredSelection.front();
+            textEdit->setText(QString::fromStdString(selected_prim->nodeName()));
+        } else {
+            textEdit->setText(QApplication::translate("USDStageObject", "Multiple prims selected"));
+            textEdit->setDisabled(true);
+        }
+
+        std::unordered_set<std::string> primTypes;
+        for (const auto& prim : filteredSelection) {
+            primTypes.insert(prim->nodeType());
+        }
+
+        label = new QLabel(QApplication::translate("USDStageObject", "Type"));
+        if (primTypes.size() == 1) {
+            textEdit = new QLineEdit(QString::fromStdString(*primTypes.begin()));
+        } else {
+            textEdit = new QLineEdit(
+                QApplication::translate("USDStageObject", "Multiple types selected"));
+            textEdit->setDisabled(true);
+        }
+        textEdit->setReadOnly(true);
+        label->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+        label->setBuddy(textEdit);
+        l->addWidget(label, 1, 0);
+        l->addWidget(textEdit, 1, 1);
+
+        l->setColumnStretch(0, 1);
+        l->setColumnStretch(1, 2);
+
+        ip->AddRollupPage(
+            *w,
+            QApplication::translate("USDStageObject", "General").toStdWString().c_str(),
+            0,
+            category++);
+        primAttributeWidgets.push_back(w);
+
+        std::vector<pxr::TfType> commonAncestors;
+        if (primTypes.size() == 1) {
+            auto usdPrim = MaxUsd::ufe::ufePathToPrim(filteredSelection.front()->path());
+            commonAncestors = GetAllAncestorSchemaTypes(usdPrim);
+        } else {
+            bool firstOne = true;
+            for (const auto& item : filteredSelection) {
+                auto usdPrim = MaxUsd::ufe::ufePathToPrim(item->path());
+                auto ancestors = GetAllAncestorSchemaTypes(usdPrim);
+                if (firstOne) {
+                    commonAncestors = ancestors;
+                    firstOne = false;
+                } else {
+                    // remove from common if not in ancestors
+                    commonAncestors.erase(
+                        std::remove_if(
+                            commonAncestors.begin(),
+                            commonAncestors.end(),
+                            [&ancestors](const auto& it) {
+                                return std::find(ancestors.begin(), ancestors.end(), it)
+                                    == ancestors.end();
+                            }),
+                        commonAncestors.end());
+                }
+            }
+        }
+
+        std::set<std::string> handledAttributeNames;
+
+        bool firstOne = true;
+
+        auto addRollup = [this, &firstOne, &category](std::unique_ptr<QWidget> widget) {
+            if (widget) {
+                auto w = widget.release();
+                auto rollupTitle = w->objectName();
+                int  rollupFlags = 0;
+
+                if (firstOne) {
+                    w->setProperty("ignoreRollupOpenState", true);
+                    firstOne = false;
+                } else {
+                    auto it = primAttributeRollupStates.find(rollupTitle);
+                    if (it != primAttributeRollupStates.end()) {
+                        if (!it->second) {
+                            rollupFlags = APPENDROLL_CLOSED;
+                        }
+                    }
+                }
+
+                ip->AddRollupPage(*w, rollupTitle.toStdWString().c_str(), rollupFlags, category++);
+                primAttributeWidgets.push_back(w);
+            }
+        };
+
+        // Type schemas.
+        for (const auto& t : commonAncestors) {
+            auto widget = MaxUsd::ufe::QmaxUsdUfeAttributesWidget::create(
+                filteredSelection, t, handledAttributeNames);
+            addRollup(std::move(widget));
+        }
+
+        // Applied schemas.
+        pxr::TfHashSet<pxr::TfToken, pxr::TfToken::HashFunctor> commonAppliedSchemas;
+        bool                                                    firstItem = true;
+        for (const auto& sel : filteredSelection) {
+            auto usdPrim = MaxUsd::ufe::ufePathToPrim(sel->path());
+            auto schemas = usdPrim.GetAppliedSchemas();
+
+            if (firstItem) {
+                for (const auto& schema : schemas) {
+                    commonAppliedSchemas.insert(schema);
+                }
+                firstItem = false;
+                continue;
+            }
+
+            for (const auto& cs : commonAppliedSchemas) {
+                if (std::find(schemas.begin(), schemas.end(), cs) == schemas.end()) {
+                    commonAppliedSchemas.erase(cs);
+                }
+            }
+        }
+        for (const auto& as : commonAppliedSchemas) {
+
+            const auto& type = pxr::UsdSchemaRegistry::GetTypeFromName(as);
+            addRollup(MaxUsd::ufe::QmaxUsdUfeAttributesWidget::create(
+                filteredSelection, type, handledAttributeNames));
+        }
+
+        // Catch all rollup, any attribute that not part of a schema, or that we missed.
+        // Only display this rollup on single selection.
+        if (filteredSelection.size() == 1) {
+            const auto usdPrim = MaxUsd::ufe::ufePathToPrim(filteredSelection.front()->path());
+
+            std::vector<std::string> extraAttrNames;
+            for (const auto& attr : usdPrim.GetAuthoredAttributes()) {
+                const auto& name = attr.GetName();
+                // Attribute is authored and not yet handled, we want it!
+                if (handledAttributeNames.find(name) == handledAttributeNames.end()) {
+
+                    extraAttrNames.push_back(name);
+                }
+            }
+
+            if (auto widget = MaxUsd::ufe::QmaxUsdUfeAttributesWidget::create(
+                    filteredSelection, extraAttrNames, handledAttributeNames)) {
+                widget->setObjectName(
+                    QApplication::translate("USDStageObject", "Extra Attributes"));
+                addRollup(std::move(widget));
+            }
+        }
+
+        addRollup(MaxUsd::ufe::QmaxUsdUfeAttributesWidget::createMetaData(
+            filteredSelection, handledAttributeNames));
+    }
+}
+
+void USDStageObject::DirtySelectionDisplay() { isSelectionDisplayDirty = true; }
+
+void USDStageObject::UpdatePrimSelectionDisplay()
+{
+    if (!isSelectionDisplayDirty) {
+        return;
+    }
+    isSelectionDisplayDirty = false;
+
+    // If disabled, or at object level : we do not want to display prim selection at all.
+    if (!HdMaxDisplayPreferences::GetInstance().GetSelectionHighlightEnabled()
+        || subObjectLevel == 0) {
+        hydraEngine->SetSelection({});
+        return;
+    }
+
+    // Otherwise, configure the hydra selection display from the UFE selection.
+    const auto&               globalSelection = Ufe::GlobalSelection::get();
+    std::vector<pxr::SdfPath> paths;
+    auto                      relevant = [this](const Ufe::Path& path) {
+        return path.startsWith(MaxUsd::ufe::getUsdStageObjectPath(this));
+    };
+
+    std::unordered_map<pxr::SdfPath, pxr::VtIntArray, pxr::SdfPath::Hash> newSelection;
+
+    for (const auto& item : *globalSelection) {
+        const auto& path = item->path();
+        if (relevant(path)) {
+            const UsdUfe::UsdSceneItem::Ptr usdItem
+                = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+            if (usdItem && usdItem->isPointInstance()) {
+                newSelection[usdItem->prim().GetPath()].push_back(usdItem->instanceIndex());
+            } else {
+                newSelection[usdItem->prim().GetPath()];
+            }
+        }
+    }
+    hydraEngine->SetSelection(newSelection);
+}
+
+/**
+ * \brief Observes a UFE subject and update the selection display in the VP.
+ */
+class SelectionObserver : public Ufe::Observer
+{
+public:
+    SelectionObserver(USDStageObject* stageObject) { this->stageObject = stageObject; }
+
+    void operator()(const Ufe::Notification& notification) override
+    {
+        if (const auto sc = dynamic_cast<const Ufe::SelectionChanged*>(&notification)) {
+            stageObject->AdjustAttributeRollupsForSelection();
+            stageObject->DirtySelectionDisplay();
+            stageObject->Redraw();
+        }
+    }
+
+private:
+    USDStageObject* stageObject = nullptr;
+};
+
+USDStageObject::USDStageObject()
+    : usdMaterials { NewDefaultMultiMtl() }
+{
+    hydraEngine = std::make_unique<HdMaxEngine>();
+
+    CreateParameterBlock2(&propertiesParamblock, this);
+
+    // Register ourselves as a listener for USD stage change notifications. Another USD client could
+    // be changing the scene.
+    pxr::TfWeakPtr<USDStageObject> me(this);
+    onStageChangeNotice = pxr::TfNotice::Register(me, &USDStageObject::OnStageChange);
+
+    RegisterNotification(NotifyTimeRangeChanged, this, NOTIFY_TIMERANGE_CHANGE);
+    RegisterNotification(NotifyUnitsChanged, this, NOTIFY_UNITS_CHANGE);
+    RegisterNotification(NotifyNodeDeleted, this, NOTIFY_SCENE_PRE_DELETED_NODE);
+    RegisterNotification(NotifyNodeCreated, this, NOTIFY_NODE_CREATED);
+    RegisterNotification(NotifyNodePreClone, this, NOTIFY_PRE_NODES_CLONED);
+    RegisterNotification(NotifyNodePostClone, this, NOTIFY_POST_NODES_CLONED);
+
+    RegisterNotification(
+        NotifySelectionHighlightConfigChanged, this, NOTIFY_SELECTION_HIGHLIGHT_ENABLED_CHANGED);
+
+    nodeEventCallbackKey = GetISceneEventManager()->RegisterCallback(&nodeEventCallback);
+
+    // Init viewport icon display
+    UpdateViewportStageIcon();
+
+    guid = MaxUsd::GenerateGUID();
+
+    selectionObserver = std::make_shared<SelectionObserver>(this);
+    Ufe::GlobalSelection::get()->addObserver(selectionObserver);
+}
+
+USDStageObject::~USDStageObject()
+{
+    UnRegisterNotification(NotifyTimeRangeChanged, this, NOTIFY_TIMERANGE_CHANGE);
+    UnRegisterNotification(NotifyUnitsChanged, this, NOTIFY_UNITS_CHANGE);
+    UnRegisterNotification(NotifyNodeDeleted, this, NOTIFY_SCENE_PRE_DELETED_NODE);
+    UnRegisterNotification(
+        NotifySelectionHighlightConfigChanged, this, NOTIFY_SELECTION_HIGHLIGHT_ENABLED_CHANGED);
+    UnRegisterNotification(NotifyNodeCreated, this, NOTIFY_NODE_CREATED);
+    UnRegisterNotification(NotifyNodePreClone, this, NOTIFY_PRE_NODES_CLONED);
+    UnRegisterNotification(NotifyNodePostClone, this, NOTIFY_POST_NODES_CLONED);
+
+    if (stage) {
+        // If the stage is currently opened in the explorer, close it.
+        USDExplorer::Instance()->CloseStage(this);
+        pxr::UsdUtilsStageCache::Get().Erase(stageCacheId);
+        stageCacheId = {};
+
+        StageObjectMap::GetInstance()->Remove(this);
+    }
+
+    pxr::TfNotice::Revoke(onStageChangeNotice);
+    stage = pxr::TfNullPtr;
+
+    GetISceneEventManager()->UnRegisterCallback(nodeEventCallbackKey);
+}
+
+void USDStageObject::SetReference(int i, RefTargetHandle rtarg)
+{
+    pb = dynamic_cast<IParamBlock2*>(rtarg);
+}
+
+int USDStageObject::NumRefs() { return 1; }
+
+ReferenceTarget* USDStageObject::GetReference(int i) { return (i == 0) ? pb : nullptr; }
+
+int USDStageObject::NumParamBlocks() { return 1; }
+
+IParamBlock2* USDStageObject::GetParamBlock(int i) { return (i == 0) ? pb : nullptr; }
+
+IParamBlock2* USDStageObject::GetParamBlockByID(BlockID id)
+{
+    if (pb && pb->ID() == id) {
+        return pb;
+    }
+    return nullptr;
+}
+
+int USDStageObject::NumSubs() { return 1; }
+
+Animatable* USDStageObject::SubAnim(int i) { return pb; }
+
+TSTR USDStageObject::SubAnimName(int i, bool localized)
+{
+    return localized ? GetString(IDS_PARAMS) : _T("Parameters");
+}
+
+int USDStageObject::SubNumToRefNum(int subNum)
+{
+    if (subNum == PBLOCK_REF) {
+        return subNum;
+    }
+    return -1;
+}
+
+void USDStageObject::BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev)
+{
+    this->ip = ip;
+    if (flags & BEGIN_EDIT_CREATE) {
+        isInCreateMode = true;
+    } else {
+        isInCreateMode = false;
+        selectMode = new SelectModBoxCMode(this, ip);
+        moveMode = new MoveModBoxCMode(this, ip);
+        rotateMode = new RotateModBoxCMode(this, ip);
+        uScaleMode = new UScaleModBoxCMode(this, ip);
+        nuScaleMode = new NUScaleModBoxCMode(this, ip);
+        squashMode = new SquashModBoxCMode(this, ip);
+    }
+    GetUSDStageObjectClassDesc()->BeginEditParams(ip, this, flags, prev);
+
+    if (!primAttributeRollupOpenStatesLoaded) {
+        primAttributeRollupOpenStatesLoaded = true;
+        primAttributeRollupStates = loadedPrimAttributeRollupStates
+            = MaxUsd::OptionUtils::LoadRollupStates(rollupCategory);
+    }
+    AdjustAttributeRollupsForSelection();
+}
+
+void USDStageObject::EndEditParams(IObjParam* ip, ULONG flags, Animatable* next)
+{
+    if (!isInCreateMode) {
+        ip->DeleteMode(selectMode);
+        delete selectMode;
+        selectMode = nullptr;
+
+        ip->DeleteMode(moveMode);
+        delete moveMode;
+        moveMode = nullptr;
+
+        ip->DeleteMode(rotateMode);
+        delete rotateMode;
+        rotateMode = nullptr;
+
+        ip->DeleteMode(uScaleMode);
+        delete uScaleMode;
+        uScaleMode = nullptr;
+
+        ip->DeleteMode(nuScaleMode);
+        delete nuScaleMode;
+        nuScaleMode = nullptr;
+
+        ip->DeleteMode(squashMode);
+        delete squashMode;
+        squashMode = nullptr;
+    } else {
+        isInCreateMode = false;
+    }
+    GetUSDStageObjectClassDesc()->EndEditParams(ip, this, flags, next);
+
+    CleanupPrimAttributeWidgets();
+
+    this->ip = nullptr;
+
+    HdMaxDisplayPreferences::GetInstance().Save();
+
+    // Save the rollup states if needed.
+    bool primAttributeRollupStatesChanged = false;
+    if (primAttributeRollupStates.size() == loadedPrimAttributeRollupStates.size()) {
+        for (const auto& it : primAttributeRollupStates) {
+            auto it2 = loadedPrimAttributeRollupStates.find(it.first);
+            if (it2 == loadedPrimAttributeRollupStates.end() || it2->second != it.second) {
+                primAttributeRollupStatesChanged = true;
+                break;
+            }
+        }
+    } else {
+        primAttributeRollupStatesChanged = true;
+    }
+    if (primAttributeRollupStatesChanged) {
+        MaxUsd::OptionUtils::SaveRollupStates(rollupCategory, primAttributeRollupStates);
+        loadedPrimAttributeRollupStates = primAttributeRollupStates;
+    }
+}
+
+void USDStageObject::ClearRenderCache() { renderCache = {}; }
+
+void USDStageObject::ClearBoundingBoxCache() { boundingBoxCache.clear(); }
+
+void USDStageObject::FullStageReset()
+{
+    pickingRenderer.reset();
+
+    // If the stage is currently opened in the explorer, close it.
+    // TODO : This behavior is not what we will want in the end. It will be reviewed
+    // along with the work to "save" an stage's open/closed state.
+    USDExplorer::Instance()->CloseStage(this);
+    StageObjectMap::GetInstance()->Remove(this);
+
+    // Clear any selection belonging to this stage in the global UFE selection.
+    const auto selection = Ufe::GlobalSelection::get();
+
+    Ufe::Selection newSelection { *selection };
+    const auto     objectPath = MaxUsd::ufe::getUsdStageObjectPath(this);
+    for (const auto& item : newSelection) {
+        if (!item->path().startsWith(objectPath)) {
+            continue;
+        }
+        newSelection.remove(item);
+    }
+    // Replace the global selection all at once, to avoid sending many notifications.
+    selection->replaceWith(newSelection);
+
+    // Clear the current stage.
+    pxr::UsdUtilsStageCache::Get().Erase(stageCacheId);
+    stage = pxr::TfNullPtr;
+    stageCacheId = {};
+
+    // Reset the engine, to make sure we don't hold onto any state.
+    hydraEngine = std::make_unique<HdMaxEngine>();
+
+    if (auto owner = dynamic_cast<Object*>(pb->GetOwner())) {
+        Interval valid = FOREVER;
+        owner->ForceNotify(valid);
+    }
+    ClearAllCaches();
+}
+
+void USDStageObject::GenerateDrawModes()
+{
+    if (!stage) {
+        return;
+    }
+
+    // Draw modes are generated in an anonymous sublayer of the session layer.
+    auto              session = stage->GetSessionLayer();
+    auto              subLayers = session->GetSubLayerPaths();
+    const std::string reservedName = "MaxUsd_DrawModes_Reserved";
+
+    pxr::SdfLayerRefPtr drawModesLayer;
+    int                 layerIndex;
+
+    for (layerIndex = 0; layerIndex < subLayers.size(); ++layerIndex) {
+        std::string layerPath = subLayers[layerIndex];
+        if (layerPath.find(reservedName) != std::string::npos) {
+            // Identified this is our layer, however, if we are loading the max scene from disk, it
+            // could no longer exist...
+            if (auto layer = pxr::SdfLayer::FindOrOpen(subLayers[layerIndex])) {
+                drawModesLayer = layer;
+                break;
+            }
+            // Remove the "dead" layer. We will generate a new one below if required.
+            session->RemoveSubLayerPath(layerIndex);
+            break;
+        }
+    }
+
+    if (!GetParamBlockBool(pb, GeneratePointInstancesDrawModes)) {
+        // No existing draw modes layer, nothing to do...
+        if (!drawModesLayer) {
+            return;
+        }
+        // Clear the layer and remove it from the session layer.
+        drawModesLayer->Clear();
+        session->RemoveSubLayerPath(layerIndex);
+        return;
+    }
+
+    if (!drawModesLayer) {
+        drawModesLayer = pxr::SdfLayer::CreateAnonymous(reservedName);
+        if (!drawModesLayer) {
+            return;
+        }
+        session->InsertSubLayerPath(drawModesLayer->GetIdentifier());
+    }
+
+    pxr::TfToken drawMode;
+    pxr::TfToken cardsGeom;
+    const auto   activeMode = GetParamBlockInt(pb, PointInstancesDrawMode);
+
+    switch (activeMode) {
+    case 0: {
+        drawMode = pxr::UsdGeomTokens->default_;
+        cardsGeom = pxr::UsdGeomTokens->cross; // default, not used.
+        break;
+    }
+    case 1: {
+        drawMode = pxr::UsdGeomTokens->cards;
+        cardsGeom = pxr::UsdGeomTokens->box;
+        break;
+    }
+    case 2: {
+        drawMode = pxr::UsdGeomTokens->cards;
+        cardsGeom = pxr::UsdGeomTokens->cross;
+        break;
+    }
+    }
+
+    pxr::UsdEditContext editContext(stage, drawModesLayer);
+
+    // Setup draw modes for the prototypes of all instancers in the scene.
+    for (pxr::UsdPrim prim : stage->TraverseAll()) {
+        if (!prim.IsA<pxr::UsdGeomPointInstancer>()) {
+            continue;
+        }
+
+        const auto instancer = pxr::UsdGeomPointInstancer(prim);
+
+        pxr::SdfPathVector targets;
+        instancer.GetPrototypesRel().GetTargets(&targets);
+
+        for (const auto& protoPath : targets) {
+            auto prototype = stage->GetPrimAtPath(protoPath);
+
+            if (!prototype.IsValid()) {
+                continue;
+            }
+
+            const auto usdModelApi = pxr::UsdModelAPI(prototype);
+            const auto geomModelApi = pxr::UsdGeomModelAPI::Apply(prototype);
+
+            // Draw modes apply by default on "component" kind prims. If no kind is authored
+            // on the prototype, we just set it as a component to get the Draw Mode going. A
+            // Kind needs to be setup for the Draw Mode to work at all. However, if a Kind is
+            // already authored, we preserve it, and instead explicitely specify that we want
+            // the draw mode to run at this prim's level (unless if it is a component already,
+            // in that case, no need to do anything more).
+            pxr::TfToken kind;
+            if (!usdModelApi.GetKind(&kind)) {
+                usdModelApi.SetKind(pxr::KindTokens->component);
+            } else {
+                if (kind != pxr::KindTokens->component) {
+                    geomModelApi.CreateModelApplyDrawModeAttr().Set(true);
+                }
+            }
+
+            geomModelApi.CreateModelDrawModeAttr().Set(drawMode);
+            geomModelApi.CreateModelCardGeometryAttr().Set(cardsGeom);
+
+            // Make sure all ancestors have proper model kinds defined.
+            auto current = prototype.GetParent();
+            while (current.IsValid()) {
+                auto         usdModelApi = pxr::UsdModelAPI(current);
+                pxr::TfToken kind;
+                if (!usdModelApi.GetKind(&kind)
+                    || (kind != pxr::KindTokens->assembly && kind != pxr::KindTokens->group)) {
+                    usdModelApi.SetKind(pxr::KindTokens->assembly);
+                }
+                current = current.GetParent();
+            }
+        }
+    }
+}
+
+RefResult USDStageObject::NotifyRefChanged(
+    const Interval& changeInt,
+    RefTargetHandle hTarget,
+    PartID&         partID,
+    RefMessage      message,
+    BOOL            propagate)
+{
+    switch (message) {
+    case REFMSG_CHANGE: {
+        auto pb = dynamic_cast<IParamBlock2*>(hTarget);
+        if (!pb) {
+            return REF_DONTCARE;
+        }
+
+        int     tabIndex = -1;
+        ParamID pID = pb->LastNotifyParamID(tabIndex);
+        switch (pID) {
+            // There is auto-binding for the stage file, but the tooltip also needs to be set.
+        case StageFile:
+            // There is no auto-binding with the stage mask. Trigger an update manually.
+        case StageMask: {
+            if (const auto parametersMap = pb->GetMap(ParamMapID::UsdStageGeneral)) {
+                parametersMap->UpdateUI(GetCOREInterface()->GetTime());
+            }
+            break;
+        }
+        case DisplayGuide: {
+            displayPurposeUpdated = true;
+            ClearAllCaches();
+            Redraw();
+            break;
+        }
+        case DisplayProxy: {
+            displayPurposeUpdated = true;
+            ClearAllCaches();
+            Redraw();
+            break;
+        }
+        case DisplayRender: {
+            displayPurposeUpdated = true;
+            ClearAllCaches();
+            Redraw();
+            break;
+        }
+        case CustomAnimationStartFrame:
+        case CustomAnimationSpeed:
+        case CustomAnimationEndFrame:
+        case CustomAnimationPlaybackTimecode:
+        case AnimationMode: {
+            if (const auto usdStageAnimationParamsMap = pb->GetMap(ParamMapID::UsdStageAnimation)) {
+                usdStageAnimationParamsMap->Invalidate(MaxAnimationStartFrame);
+                usdStageAnimationParamsMap->Invalidate(MaxAnimationEndFrame);
+            }
+            // With the animation playback config changed, the rendered UsdTimeCode might have
+            // changed, clear the bounding box cache.
+            ClearBoundingBoxCache();
+            Redraw();
+            break;
+        }
+        case MeshMergeMode:
+        case MeshMergeDiagnosticView:
+        case MaxMergedMeshTriangles:
+        case MeshMergeMaxTriangles:
+        case MeshMergeMaxInstances:
+        case DisplayMode: {
+            Redraw();
+            break;
+        }
+        case ShowIcon: {
+            // The icon influences the bounding box.
+            ClearBoundingBoxCache();
+            Redraw();
+            break;
+        }
+        case IconScale: {
+            UpdateViewportStageIcon();
+            // The icon influences the bounding box.
+            ClearBoundingBoxCache();
+            if (GetParamBlockBool(pb, ShowIcon)) {
+                Redraw();
+            }
+            break;
+        }
+        case KindSelection: {
+            // Notify the UI it should change. We do not use automatic binding for this parameter.
+            if (const auto vpSelectionMap = pb->GetMap(ParamMapID::UsdStageSelection)) {
+                vpSelectionMap->UpdateUI(GetCOREInterface()->GetTime());
+            }
+            break;
+        }
+        case GenerateCameras: {
+            BuildCameraNodes();
+        }
+        case GeneratePointInstancesDrawModes:
+        case PointInstancesDrawMode: {
+            GenerateDrawModes();
+            Redraw();
+        }
+        }
+        break;
+    }
+    }
+    return REF_SUCCEED;
+}
+
+int USDStageObject::NumSubObjTypes() { return 1; }
+
+ISubObjType* USDStageObject::GetSubObjType(int i)
+{
+    if (i == 0) {
+        static GenSubObjType subobjType(L"Prim", nullptr, 0);
+        return &subobjType;
+    }
+    return nullptr;
+}
+
+void USDStageObject::ActivateSubobjSel(int level, XFormModes& modes)
+{
+    subObjectLevel = level;
+    if (level) {
+        modes = XFormModes(moveMode, rotateMode, nuScaleMode, uScaleMode, squashMode, selectMode);
+        NotifyDependents(FOREVER, PART_SUBSEL_TYPE | PART_DISPLAY, REFMSG_CHANGE);
+        GetCOREInterface()->PipeSelLevelChanged();
+    }
+    AdjustAttributeRollupsForSelection();
+    DirtySelectionDisplay();
+    Redraw();
+}
+
+void USDStageObject::SelectSubComponent(HitRecord* hitRec, BOOL selected, BOOL all, BOOL invert)
+{
+    const auto usdHit = dynamic_cast<UsdHitData*>(hitRec->hitData);
+    if (!usdHit) {
+        return;
+    }
+
+    const auto& hits = usdHit->GetHits();
+
+    // Update the UFE global selection.
+    Ufe::Selection newSelection(*Ufe::GlobalSelection::get());
+    bool           selectionChanged = false;
+    for (const auto& hit : hits) {
+        auto resolvedPath = hit.primPath;
+        auto prim = stage->GetPrimAtPath(hit.primPath);
+        prim = MaxUsd::GetFirstNonInstanceProxyPrimAncestor(prim);
+        resolvedPath = prim.GetPath();
+
+        // Resolve selection based on the current mode.
+        const MCHAR* kindSelectionPb = nullptr;
+        Interval     valid = FOREVER;
+        pb->GetValue(KindSelection, GetCOREInterface()->GetTime(), kindSelectionPb, valid);
+
+        const auto kindSelection = pxr::TfToken { MaxUsd::MaxStringToUsdString(kindSelectionPb) };
+
+        const auto subobjLevel = GetSubObjectLevel();
+        if (static_cast<SelectionMode>(subobjLevel) == SelectionMode::Prim
+            && !kindSelection.IsEmpty()) {
+            const auto kindPrim = MaxUsd::GetPrimOrAncestorWithKind(prim, kindSelection);
+            if (kindPrim) {
+                resolvedPath = kindPrim.GetPath();
+            }
+        }
+
+        // Update the UFE global selection.
+        Ufe::Path ufePath;
+
+        // If we resolved the selection to a path above in the hierarchy, don't consider the
+        // instance index.
+        if (resolvedPath == hit.primPath) {
+            ufePath = MaxUsd::ufe::getUsdPrimUfePath(this, resolvedPath, hit.instanceIdx);
+        } else {
+            ufePath = MaxUsd::ufe::getUsdPrimUfePath(this, resolvedPath);
+        }
+
+        const auto sceneItem = Ufe::Hierarchy::createItem(ufePath);
+        if (!sceneItem) {
+            continue;
+        }
+
+        if (selected) {
+            selectionChanged |= newSelection.append(sceneItem);
+        } else {
+            selectionChanged |= newSelection.remove(sceneItem);
+        }
+    }
+
+    if (selectionChanged) {
+        if (theHold.RestoreOrRedoing()) {
+            Ufe::GlobalSelection::get()->replaceWith(newSelection);
+        } else {
+            Ufe::UndoableCommandMgr::instance().executeCmd(
+                std::make_shared<UfeUi::ReplaceSelectionCommand>(newSelection));
+        }
+    }
+}
+
+void USDStageObject::ClearSelection(int level)
+{
+    if (!level) {
+        return;
+    }
+
+    // Clear the UFE global selection.
+    if (!Ufe::GlobalSelection::get()->empty()) {
+        if (theHold.RestoreOrRedoing()) {
+            Ufe::GlobalSelection::get()->clear();
+        } else {
+            Ufe::UndoableCommandMgr::instance().executeCmd(
+                std::make_shared<UfeUi::ReplaceSelectionCommand>(Ufe::Selection({})));
+        }
+    }
+}
+
+void USDStageObject::GetSubObjectCenters(
+    SubObjAxisCallback* cb,
+    TimeValue           t,
+    INode*              node,
+    ModContext* /*mc*/)
+{
+    const auto transformables = GetTransformablesFromSelection();
+    if (transformables.empty()) {
+        return;
+    }
+
+    // Average out the positions of the Transformables we need to transform.
+    Point3 avgCenter;
+    size_t count = 0;
+    for (auto& transformable : transformables) {
+        // Point instances.
+        if (!transformable.instanceIndices.empty()) {
+            const auto instanceTransforms = GetMaxScenePointInstancesTransforms(
+                node, transformable.prim, transformable.instanceIndices, t);
+            for (const auto& mat : instanceTransforms) {
+                avgCenter += mat.GetTrans();
+            }
+            count += instanceTransforms.size();
+            continue;
+        }
+        // Xformable Prims.
+        const auto primSceneTransform = GetMaxScenePrimTransform(node, transformable.prim, t, true);
+        avgCenter += primSceneTransform.GetTrans();
+        count++;
+    }
+    avgCenter /= static_cast<float>(count);
+    cb->Center(avgCenter, 0);
+}
+
+void USDStageObject::GetSubObjectTMs(
+    SubObjAxisCallback* cb,
+    TimeValue           t,
+    INode*              node,
+    ModContext* /*mc*/)
+{
+    const auto transformables = GetTransformablesFromSelection();
+    if (transformables.empty()) {
+        return;
+    }
+
+    // Average out the positions and normals to find the sub-object TM when there are
+    // multi-selections (which are used when transforming things in non-world coord systems).
+    Point3 avgNormal;
+    Point3 avgCenter;
+
+    const auto addCenterAndNormal = [&avgCenter, &avgNormal](const Matrix3& transform) {
+        avgCenter += transform.GetTrans();
+        auto noTrans = transform;
+        noTrans.SetTrans({});
+        const auto up = noTrans * Point3 { 0.f, 0.f, 1.f };
+        avgNormal += up;
+    };
+
+    size_t count = 0;
+    for (int i = 0; i < transformables.size(); ++i) {
+        const auto& transformable = transformables[i];
+
+        // Point instances.
+        if (!transformable.instanceIndices.empty()) {
+            const auto instanceTransforms = GetMaxScenePointInstancesTransforms(
+                node, transformable.prim, transformable.instanceIndices, t);
+            for (const auto& t : instanceTransforms) {
+                addCenterAndNormal(t);
+            }
+            count += instanceTransforms.size();
+            continue;
+        }
+        // Xformable prims.
+        auto primSceneTransform = GetMaxScenePrimTransform(node, transformable.prim, t, true);
+        addCenterAndNormal(primSceneTransform);
+        count++;
+    }
+
+    avgNormal /= static_cast<float>(count);
+    avgCenter /= static_cast<float>(count);
+
+    Matrix3 tm;
+    avgNormal = avgNormal.Normalize();
+
+    // Equivalent to SetMatrixFromNormal(), which is only available in the SDK in 2024+.
+    Point3 vx;
+    vx.z = .0f;
+    vx.x = -avgNormal.y;
+    vx.y = avgNormal.x;
+    if (vx.x == .0f && vx.y == .0f) {
+        vx.x = 1.0f;
+    }
+    tm.SetRow(0, vx);
+    tm.SetRow(1, avgNormal ^ vx);
+    tm.SetRow(2, avgNormal);
+    tm.SetTrans(Point3(0, 0, 0));
+    tm.NoScale();
+
+    tm.SetTrans(avgCenter);
+    cb->TM(tm, 0);
+}
+
+void USDStageObject::Move(
+    TimeValue t,
+    Matrix3&  partm,
+    Matrix3&  tmAxis,
+    Point3&   val,
+    BOOL /*localOrigin*/)
+{
+    if (!stage || subObjectManips.empty()) {
+        return;
+    }
+
+    Matrix3 translation;
+    translation.SetTranslate(val);
+    TransformInteractive(partm, tmAxis, translation);
+}
+
+void USDStageObject::Rotate(
+    TimeValue t,
+    Matrix3&  partm,
+    Matrix3&  tmAxis,
+    Quat&     val,
+    BOOL /*localOrigin*/)
+{
+    if (!stage || subObjectManips.empty()) {
+        return;
+    }
+
+    Matrix3 rotation;
+    val.MakeMatrix(rotation);
+    TransformInteractive(partm, tmAxis, rotation);
+}
+
+void USDStageObject::Scale(
+    TimeValue t,
+    Matrix3&  partm,
+    Matrix3&  tmAxis,
+    Point3&   val,
+    BOOL /*localOrigin*/)
+{
+    if (!stage || subObjectManips.empty()) {
+        return;
+    }
+    const auto scaling = ScaleMatrix(val);
+    TransformInteractive(partm, tmAxis, scaling);
+}
+
+void USDStageObject::TransformStart(TimeValue t)
+{
+    // Setup a diagnostic delegate to log any errors in the listener.
+    const auto del
+        = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::ListenerDelegate>();
+
+    const auto transformables = GetTransformablesFromSelection();
+    if (transformables.empty()) {
+        return;
+    }
+
+    // We read USD values at the current time code, but we will author at the default time code.
+    const auto timeCode = MaxUsd::GetUsdTimeCodeFromMaxTime(stage, t);
+
+    for (auto& transformable : transformables) {
+        // Point instances.
+        if (!transformable.instanceIndices.empty()) {
+            const auto instancer = pxr::UsdGeomPointInstancer(transformable.prim);
+            subObjectManips.push_back(std::make_unique<PointInstanceManip>(
+                instancer, transformable.instanceIndices, timeCode));
+            continue;
+        }
+        // Xformable prims.
+        const auto xformable = pxr::UsdGeomXformable(transformable.prim);
+        subObjectManips.push_back(std::make_unique<XformableManip>(xformable, timeCode));
+    }
+}
+
+void USDStageObject::TransformFinish(TimeValue t)
+{
+    if (subObjectManips.empty()) {
+        return;
+    }
+
+    // Use a composite command to properly support undo when transforming from a multi-selection.
+    const auto compositeCmd = Ufe::CompositeUndoableCommand::create({});
+    for (const auto& manip : subObjectManips) {
+        if (auto cmd = manip->BuildTransformCmd()) {
+            compositeCmd->append(cmd);
+        }
+    }
+    if (!compositeCmd->cmdsList().empty()) {
+        // UndoableCommandMgr will setup a diagnostics delegate.
+        Ufe::UndoableCommandMgr::instance().executeCmd(MaxUfeUndoableCommandMgr::named(
+            compositeCmd,
+            QApplication::translate("USDStageObject", "Change USD transform").toStdString()));
+    }
+    subObjectManips.clear();
+}
+
+Matrix3 USDStageObject::GetMaxScenePrimTransform(
+    INode*              stageNode,
+    const pxr::UsdPrim& prim,
+    const TimeValue&    time,
+    bool                includePivot)
+{
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        return {};
+    }
+
+    const auto timeCode = stageObject->ResolveRenderTimeCode(time);
+
+    const auto imageable = pxr::UsdGeomImageable { prim };
+    auto       usdWorldMatrix = imageable.ComputeLocalToWorldTransform(timeCode);
+    if (includePivot) {
+        const auto pivot = MaxUsd::GetPivotTransform(pxr::UsdGeomXformable { prim }, timeCode);
+        usdWorldMatrix = pivot * usdWorldMatrix;
+    }
+
+    const auto objTm = MaxUsd::ToUsd(stageNode->GetObjectTM(time));
+    const auto fullPrimMatrix = usdWorldMatrix * stageObject->GetStageRootTransform() * objTm;
+
+    return MaxUsd::ToMaxMatrix3(fullPrimMatrix);
+}
+
+std::vector<Matrix3> USDStageObject::GetMaxScenePointInstancesTransforms(
+    INode*                  stageNode,
+    const pxr::UsdPrim&     instancerPrim,
+    const std::vector<int>& instanceIndices,
+    const TimeValue&        time)
+{
+    std::vector<Matrix3> maxSceneInstanceTransforms;
+
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        return maxSceneInstanceTransforms;
+    }
+
+    const auto timeCode = stageObject->ResolveRenderTimeCode(time);
+
+    auto pointInstancer = pxr::UsdGeomPointInstancer { instancerPrim };
+
+    // Compute the instance transfoms in "parent" space, i.e. relative to the instancer.
+    pxr::VtArray<pxr::GfMatrix4d> instanceTransforms;
+    pointInstancer.ComputeInstanceTransformsAtTime(&instanceTransforms, timeCode, timeCode);
+
+    const auto      imageable = pxr::UsdGeomImageable { instancerPrim };
+    pxr::GfMatrix4d instancerWorld = imageable.ComputeLocalToWorldTransform(timeCode);
+
+    for (const auto& idx : instanceIndices) {
+
+        pxr::GfMatrix4d instanceWorld;
+        if (instanceTransforms.size() < static_cast<size_t>(idx + 1)) {
+            // Can happen if none of the PRS attributes are authored, assume identity instance
+            // transform.
+            instanceWorld = instancerWorld;
+        } else {
+            instanceWorld = instanceTransforms[idx] * instancerWorld;
+        }
+        const auto objTm = MaxUsd::ToUsd(stageNode->GetObjectTM(time));
+        const auto fullPrimMatrix = instanceWorld * stageObject->GetStageRootTransform() * objTm;
+        maxSceneInstanceTransforms.push_back(MaxUsd::ToMaxMatrix3(fullPrimMatrix));
+    }
+    return maxSceneInstanceTransforms;
+}
+
+std::vector<USDStageObject::Transformable> USDStageObject::GetTransformablesFromSelection()
+{
+    auto& globalSelection = Ufe::GlobalSelection::get();
+    if (globalSelection->empty()) {
+        return {};
+    }
+
+    std::unordered_set<Ufe::Path> transformableItems;
+
+    // First, gather all transformable USD entities in the selection.
+    const auto& selection = *globalSelection;
+    for (const auto& item : selection) {
+        // Make sure the selected prim belongs to this object.
+        const auto& path = item->path();
+        if (!path.startsWith(MaxUsd::ufe::getUsdStageObjectPath(this))) {
+            continue;
+        }
+
+        if (MaxUsd::ufe::isPointInstance(item)) {
+            transformableItems.insert(path);
+            continue;
+        }
+
+        const auto prim = MaxUsd::ufe::ufePathToPrim(path);
+        // If the prim is not xformable, get out now. This way the transform gizmos will not be
+        // showed at all.
+        if (!prim.IsValid() || !prim.IsA<pxr::UsdGeomXformable>()) {
+            continue;
+        }
+        transformableItems.insert(path);
+    }
+
+    // Next, find the root-most transformable entities. I.e. only keep the prims/instances that do
+    // not have an ancestor that is selected and itself transformable.
+    std::vector<Ufe::SceneItem::Ptr> rootMostTransformableItems;
+    // Cache paths that are known to be descendants of selected transformables.
+    std::unordered_set<Ufe::Path> transformableDescendants;
+
+    for (const auto& path : transformableItems) {
+        if (transformableDescendants.find(path) != transformableDescendants.end()) {
+            continue;
+        }
+
+        // Go up the hierarchy looking for a transformable.
+        auto                   current = path.pop();
+        bool                   hasSelectedTransformableAncestor = false;
+        std::vector<Ufe::Path> descendants;
+
+        while (!current.empty()) {
+            // Current parent was itself already found to be a transformable descendant, or is a
+            // selected transformable.
+            if (transformableDescendants.find(current) != transformableDescendants.end()
+                || transformableItems.find(current) != transformableItems.end()) {
+                hasSelectedTransformableAncestor = true;
+                break;
+            }
+            descendants.push_back(current);
+            current = current.pop();
+        }
+
+        if (hasSelectedTransformableAncestor) {
+            for (const auto& descendant : descendants) {
+                transformableDescendants.insert(descendant);
+            }
+            continue;
+        }
+
+        rootMostTransformableItems.push_back(Ufe::Hierarchy::createItem(path));
+    }
+
+    // Finally, build the Transformable objects to return to the caller,
+    // here we aggregate instances that belong to the same instancers together.
+    std::vector<Transformable> transformables;
+
+    pxr::TfHashMap<pxr::SdfPath, std::vector<int>, pxr::SdfPath::Hash> pointInstancers;
+    for (const auto& item : rootMostTransformableItems) {
+        auto         usdItem = std::dynamic_pointer_cast<UsdUfe::UsdSceneItem>(item);
+        pxr::UsdPrim prim = usdItem->prim();
+        int          instanceIdx = usdItem->instanceIndex();
+        if (instanceIdx >= 0) {
+            pointInstancers[prim.GetPath()].push_back(instanceIdx);
+            continue;
+        }
+        transformables.push_back({ prim, {} });
+    }
+    for (const auto& instancer : pointInstancers) {
+        transformables.push_back({ stage->GetPrimAtPath(instancer.first), instancer.second });
+    }
+    return transformables;
+}
+
+void USDStageObject::TransformInteractive(
+    const Matrix3& partm,
+    const Matrix3& tmAxis,
+    const Matrix3& transform) const
+{
+    // Setup a diagnostic delegate to log any errors in the listener.
+    const auto del
+        = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::ListenerDelegate>();
+    for (const auto& manip : subObjectManips) {
+        manip->TransformInteractive(GetStageRootTransform(), partm, tmAxis, transform);
+    }
+}
+
+void USDStageObject::SetRootLayerMXS(
+    const wchar_t* rootLayer,
+    const wchar_t* stageMask,
+    bool           payloadsLoaded)
+{
+    // Make sure the given paths are valid.
+    const std::string filename = MaxUsd::MaxStringToUsdString(rootLayer);
+    if (filename.empty() || MaxUsd::HasUnicodeCharacter(filename)
+        || !pxr::UsdStage::IsSupportedFile(filename)) {
+        auto errorMsg = std::wstring(L"rootLayer could not be set. Invalid file path found : ");
+        if (rootLayer) {
+            errorMsg.append(rootLayer);
+        } else {
+            errorMsg.append(L"undefined");
+        }
+        throw RuntimeError(errorMsg.c_str());
+    }
+
+    const auto primPath = pxr::SdfPath(MaxUsd::MaxStringToUsdString(stageMask));
+    if (!primPath.IsAbsolutePath() || !primPath.IsAbsoluteRootOrPrimPath()) {
+        const auto errorMsg
+            = std::wstring(L"stageMask could not be set. Invalid USD absolute prim path found : ")
+                  .append(stageMask);
+        throw RuntimeError(errorMsg.c_str());
+    }
+    SetRootLayer(rootLayer, stageMask, payloadsLoaded);
+}
+
+void USDStageObject::SetRootLayer(
+    const wchar_t* rootLayer,
+    const wchar_t* stageMask,
+    bool           payloadsLoaded)
+{
+
+    class StageRestoreObj
+        : public RestoreObj
+        , private SingleRefMaker
+    {
+    public:
+        StageRestoreObj(
+            USDStageObject*     object,
+            IParamBlock2*       pb,
+            const std::wstring& oldRootLayer,
+            const std::wstring& oldStageMask,
+            const std::wstring& newRootLayer,
+            const std::wstring& newStageMask)
+            : oldRootLayer { oldRootLayer }
+            , oldStageMask { oldStageMask }
+            , newRootLayer { newRootLayer }
+            , newStageMask { newStageMask }
+            , pb { pb }
+            , object { object }
+        {
+            // Keep a reference on the stage object, to make sure it's not garbage collected.
+            this->SetRef(object);
+            this->SetAutoDropRefOnShutdown(AutoDropRefOnShutdown::PrePluginShutdown);
+
+            oldStageRef = object->GetUSDStage();
+        }
+        void Restore(int isUndo) override
+        {
+            newStageRef = object->GetUSDStage();
+
+            pb->SetValue(
+                PBParameterIds::StageFile, GetCOREInterface()->GetTime(), oldRootLayer.c_str());
+            pb->SetValue(
+                PBParameterIds::StageMask, GetCOREInterface()->GetTime(), oldStageMask.c_str());
+            object->LoadUSDStage(oldStageRef);
+        }
+        void Redo() override
+        {
+            pb->SetValue(
+                PBParameterIds::StageFile, GetCOREInterface()->GetTime(), newRootLayer.c_str());
+            pb->SetValue(
+                PBParameterIds::StageMask, GetCOREInterface()->GetTime(), newStageMask.c_str());
+            object->LoadUSDStage(newStageRef);
+        }
+        int Size() override
+        {
+            return sizeof(oldStageMask) + sizeof(newStageMask) + sizeof(oldRootLayer)
+                + sizeof(newRootLayer) + sizeof(pb) + sizeof(object);
+        }
+        TSTR Description() override { return TSTR(_T("USD Stage Object root layer restore.")); }
+
+    private:
+        std::wstring        oldRootLayer;
+        std::wstring        oldStageMask;
+        std::wstring        newRootLayer;
+        std::wstring        newStageMask;
+        IParamBlock2*       pb;
+        USDStageObject*     object;
+        pxr::UsdStageRefPtr oldStageRef;
+        pxr::UsdStageRefPtr newStageRef;
+    };
+
+    const MCHAR* stageFilepathValue = nullptr;
+    Interval     valid = FOREVER;
+    pb->GetValue(StageFile, GetCOREInterface()->GetTime(), stageFilepathValue, valid);
+    int cmpResRootLayer = wcscmp(stageFilepathValue, rootLayer);
+
+    const MCHAR* stageMaskValue = nullptr;
+    pb->GetValue(StageMask, GetCOREInterface()->GetTime(), stageMaskValue, valid);
+    int cmpResStageMask = wcscmp(stageMaskValue, stageMask);
+
+    if (cmpResRootLayer != 0 || cmpResStageMask != 0) {
+        auto configureAndLoadStage = [this, rootLayer, stageMask, payloadsLoaded]() {
+            pb->SetValue(StageFile, GetCOREInterface()->GetTime(), rootLayer);
+            pb->SetValue(StageMask, GetCOREInterface()->GetTime(), stageMask);
+            LoadUSDStage(nullptr, payloadsLoaded);
+        };
+
+        // Insert the StageResoreObj in the undo stack, to allow undoing the stage change.
+        if (!theHold.Holding()) {
+            theHold.Begin();
+            theHold.Put(new StageRestoreObj(
+                this, pb, stageFilepathValue, stageMaskValue, rootLayer, stageMask));
+            configureAndLoadStage();
+            theHold.Accept(L"Set Root Layer and Mask");
+        } else {
+            if (!theHold.IsSuspended()) {
+                theHold.Put(new StageRestoreObj(
+                    this, pb, stageFilepathValue, stageMaskValue, rootLayer, stageMask));
+            }
+            configureAndLoadStage();
+        }
+    }
+}
+
+void USDStageObject::OnStageChange(pxr::UsdNotice::ObjectsChanged const& notice)
+{
+    if (notice.GetStage() != GetUSDStage()) {
+        return;
+    }
+
+    // Invalidate the source parameters so that fresh values for these params
+    // will be fetched by the accessors from components that depend on them, such
+    // as the UI
+    InvalidateParams();
+
+    ClearRenderCache();
+    ClearBoundingBoxCache();
+
+    // We might need to re-populate the hydra selection, for example if prims were
+    // added, or removed, or some instance indices changed.
+    DirtySelectionDisplay();
+
+    // If we have resync'ed paths, there were structural changes to the stage, and we may have
+    // deleted or added cameras.
+    if (!notice.GetResyncedPaths().empty()) {
+        BuildCameraNodes();
+    }
+
+    // Notify that the object may have changed, so that it is flagged for redraw.
+    Interval valid = FOREVER;
+    this->ForceNotify(valid);
+}
+
+void USDStageObject::GetWorldBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box)
+{
+    GetLocalBoundBox(t, inode, vp, box);
+    if (!box.IsEmpty()) {
+        box = box * inode->GetNodeTM(t);
+    }
+}
+
+void USDStageObject::GetLocalBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box)
+{
+    const auto stage = GetUSDStage();
+    const bool showIcon = GetParamBlockBool(pb, ShowIcon);
+    if (!vp || !vp->IsAlive() || !stage && !showIcon) {
+        box.Init();
+        return;
+    }
+
+    if (showIcon) {
+        shapeIcon.GetLocalBoundBox(t, inode, vp, box);
+        if (!stage) {
+            return;
+        }
+    }
+
+    box += GetStageBoundingBox(GetStageRootTransform(), t, inode);
+}
+
+Class_ID USDStageObject::ClassID() { return USDSTAGEOBJECT_CLASS_ID; }
+
+void USDStageObject::GetClassName(MSTR& s, bool localized) const
+{
+    UNUSED_PARAM(localized);
+    s = GetString(IDS_USDSTAGEOBJECT_CLASS_NAME);
+}
+
+inline int USDStageObject::IsRenderable() { return TRUE; }
+
+BaseInterface* USDStageObject::GetInterface(Interface_ID id)
+{
+    if (id == IUSDStageProvider_ID) {
+        return this;
+    }
+    return Object::GetInterface(id);
+}
+
+pxr::UsdStageWeakPtr USDStageObject::GetUSDStage() const
+{
+    if (stage) {
+        return stage;
+    }
+
+    return pxr::TfNullPtr;
+}
+
+pxr::UsdStageWeakPtr
+USDStageObject::LoadUSDStage(const pxr::UsdStageRefPtr& fromStage, bool loadPayloads)
+{
+    const auto camGenerationGuard
+        = MaxUsd::MakeScopeGuard([]() {}, [this]() { BuildCameraNodes(); });
+
+    if (stage) {
+        FullStageReset();
+    }
+
+    Interval valid;
+
+    if (fromStage) {
+        stage = fromStage;
+    } else {
+        // Block stage cache population for now. If the same file is referenced several times, we
+        // want different stages.
+        pxr::UsdStageCacheContext stageCacheContext {
+            pxr::UsdStageCacheContextBlockType::UsdBlockStageCachePopulation
+        };
+        const MCHAR* stageFilepathValue = nullptr;
+
+        pb->GetValue(StageFile, GetCOREInterface()->GetTime(), stageFilepathValue, valid);
+        if ((!stageFilepathValue) || (!stageFilepathValue[0])) {
+            return nullptr;
+        }
+
+        const std::string filename = MaxUsd::MaxStringToUsdString(stageFilepathValue);
+        if (filename.empty() || MaxUsd::HasUnicodeCharacter(filename)) {
+            // NOTE: need better error reporting here
+            return nullptr;
+        }
+
+        if (!pxr::UsdStage::IsSupportedFile(filename)) {
+            return nullptr;
+        }
+
+        const MCHAR* stageMaskValue = nullptr;
+        pb->GetValue(StageMask, GetCOREInterface()->GetTime(), stageMaskValue, valid);
+        if ((!stageMaskValue) || (!stageMaskValue[0])) {
+            return nullptr;
+        }
+
+        pxr::UsdStagePopulationMask stageMask;
+        pxr::SdfPath                stageMaskSdfPath(MaxUsd::MaxStringToUsdString(stageMaskValue));
+        stageMask.Add(stageMaskSdfPath);
+
+        const auto rootLayer = pxr::SdfLayer::FindOrOpen(filename);
+
+        pxr::UsdStage::InitialLoadSet initialLoadSet;
+        // Depending on whether we have a session layer that was loaded from the 3dsMax file or not,
+        // we need to call different signatures to open the stage. Indeed, if we pass a null session
+        // layer, none will be created for us. The signature which does not pass a session layer,
+        // will create a session layer for us under the hood - this is what we want.
+        if (sessionLayerFromMaxScene) {
+            // was the file saved with the obsolete PB value for 'LoadPayloads'
+            // in case the 'LoadNone' was set it will use that value, otherwise,
+            // whether the value is set or not, it uses the default 'LoadAll'
+            initialLoadSet = GetParamBlockBool(pb, LoadPayloads) ? pxr::UsdStage::LoadAll
+                                                                 : pxr::UsdStage::LoadNone;
+
+            stage = pxr::UsdStage::OpenMasked(
+                rootLayer, sessionLayerFromMaxScene, stageMask, initialLoadSet);
+            // No need to hold onto the layer once it is passed to the stage.
+            sessionLayerFromMaxScene = nullptr;
+        } else {
+            initialLoadSet = loadPayloads ? pxr::UsdStage::LoadAll : pxr::UsdStage::LoadNone;
+            stage = pxr::UsdStage::OpenMasked(rootLayer, stageMask, initialLoadSet);
+        }
+
+        if (!stage) {
+            return nullptr;
+        }
+
+        if (initialLoadSet == pxr::UsdStage::LoadNone) {
+            SaveStageLoadRules();
+        } else {
+            // set the payload rules that apply
+            stage->SetLoadRules(UsdUfe::createLoadRulesFromText(savedPayloadRules));
+        }
+    }
+
+    // Default the target to the session layer.
+    stage->SetEditTarget(stage->GetSessionLayer());
+
+    // Insert the stage into the cache, and expose the CacheId so that it is accessible from
+    // Maxscript.
+    stageCacheId = pxr::UsdUtilsStageCache::Get().Insert(stage);
+
+    StageObjectMap::GetInstance()->Set(this);
+
+    auto sourceAnimationLength = stage->GetEndTimeCode() - stage->GetStartTimeCode();
+    auto animationLength = MaxUsd::GetMaxFrameFromUsdTimeCode(stage, sourceAnimationLength);
+
+    // The following segment of code is for setting the "End Frame" ui field to the length of the
+    // animation that is being referenced for convenience. The check here is being performed to
+    // ensure that it is in fact a newly added reference and in order to not override previously set
+    // values for these param block parameters after loading a .max file which contains a
+    // UsdStageObject object with these values having been set manually.
+    float customStartFrame;
+    pb->GetValue(CustomAnimationStartFrame, GetCOREInterface()->GetTime(), customStartFrame, valid);
+    float customEndFrame;
+    pb->GetValue(CustomAnimationEndFrame, GetCOREInterface()->GetTime(), customEndFrame, valid);
+    if (customStartFrame == 0.f && customEndFrame == 0.f) {
+        pb->SetValue(
+            CustomAnimationEndFrame, GetCOREInterface()->GetTime(), (float)animationLength);
+    }
+    Redraw();
+
+    InvalidateParams();
+
+    if (GetParamBlockBool(pb, IsOpenInExplorer)) {
+        USDExplorer::Instance()->OpenStage(this);
+    }
+
+    GenerateDrawModes();
+
+    return stage;
+}
+
+pxr::GfMatrix4d USDStageObject::GetStageRootTransform() const
+{
+    pxr::GfMatrix4d rootTransform;
+    const auto      stage = GetUSDStage();
+    if (!stage) {
+        rootTransform.SetIdentity();
+        return rootTransform;
+    }
+
+    const auto rescaleFactor = MaxUsd::GetUsdToMaxScaleFactor(stage);
+    rootTransform.SetScale(rescaleFactor);
+
+    if (MaxUsd::IsStageUsingYUpAxis(stage)) {
+        MaxUsd::MathUtils::ModifyTransformYToZUp(rootTransform);
+    }
+    return rootTransform;
+}
+
+void USDStageObject::EnumAuxFiles(AssetEnumCallback& nameEnum, DWORD flags)
+{
+    using namespace MaxSDK::AssetManagement;
+
+    if ((flags & FILE_ENUM_CHECK_AWORK1) && this->TestAFlag(A_WORK1))
+        return;
+    // This flag means the callback object passed through is a IEnumAuxAssetsCallback derived object
+    if (flags & FILE_ENUM_ACCESSOR_INTERFACE) {
+        USDAssetAccessor accessor(this);
+        if (accessor.GetAsset().GetId() != kInvalidId) {
+            IEnumAuxAssetsCallback& callback = static_cast<IEnumAuxAssetsCallback&>(nameEnum);
+            callback.DeclareAsset(accessor);
+        }
+    } else {
+        AssetUser assetFile(
+            pb ? pb->GetAssetUser(PBParameterIds::StageFile)
+               : MaxSDK::AssetManagement::AssetUser());
+        IPathConfigMgr* pathConf = IPathConfigMgr::GetPathConfigMgr();
+        if (assetFile.GetId() != kInvalidId && pathConf) {
+            pathConf->RecordInputAsset(assetFile, nameEnum, flags);
+        }
+    }
+    // Must be called in order to perform default behavior
+    this->ReferenceMaker::EnumAuxFiles(nameEnum, flags);
+}
+
+IOResult USDStageObject::Save(ISave* iSave)
+{
+    ULONG nb = 0;
+
+    // Save the version first - if the saved format changes, we need to know what we are reading..
+    iSave->BeginChunk(SAVE_VERSION_CHUNK_ID);
+    iSave->Write(&USD_OBJECT_DATA_SAVE_VERSION, sizeof(USD_OBJECT_DATA_SAVE_VERSION), &nb);
+    iSave->EndChunk();
+
+    const auto& mappings
+        = hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions().GetPrimvarMappings();
+    const size_t numMappings = mappings.size();
+
+    // Save primvar->channel mappings.
+
+    // Save all primvar names. Can only have one string per chunk, no way
+    // to read different strings from one chunk, everything is read as one string.
+    for (auto kvPair : mappings) {
+        iSave->BeginChunk(PRIMVAR_MAPPING_NAME_CHUNK_ID);
+        const auto primvarName = MaxUsd::UsdStringToMaxString(kvPair.first);
+        iSave->WriteWString(primvarName.ToACP());
+        iSave->EndChunk();
+    }
+
+    // Now save the target channels. Can use a single chunk for this.
+    iSave->BeginChunk(PRIMVAR_MAPPING_CHANNELS_CHUNK_ID);
+    iSave->Write(&numMappings, sizeof(numMappings), &nb);
+    for (auto kvPair : mappings) {
+        int channel = kvPair.second.Get<int>();
+        iSave->Write(&channel, sizeof(int), &nb);
+    }
+    iSave->EndChunk();
+
+    if (const auto stage = GetUSDStage()) {
+        // Save the session layer, if it exists.
+        if (const auto sessionLayer = stage->GetSessionLayer()) {
+            iSave->BeginChunk(SESSION_LAYER_CHUNK_ID);
+            std::string sessionLayerStr;
+            const bool  sessionExpResult = sessionLayer->ExportToString(&sessionLayerStr);
+            // If there is an error, log it, but do not fail the entire max scene save.
+            if (!sessionExpResult) {
+                const auto msg = _T("UsdStageObject save error. Unable to serialize the session ")
+                                 _T("layer to a string.");
+                DbgAssert(0 && msg);
+                GetCOREInterface()->Log()->LogEntry(SYSLOG_ERROR, NO_DIALOG, nullptr, msg);
+                sessionLayerStr.clear();
+            }
+            const auto storageStr = MaxUsd::UsdStringToMaxString(sessionLayerStr);
+            iSave->WriteWString(storageStr.ToACP());
+            iSave->EndChunk();
+        }
+
+        // save the payload rules applied on the stage
+        iSave->BeginChunk(PAYLOAD_RULES_CHUNK_ID);
+        iSave->WriteWString(MaxUsd::UsdStringToMaxString(savedPayloadRules).ToACP());
+        iSave->EndChunk();
+    }
+    return IO_OK;
+}
+
+IOResult USDStageObject::Load(ILoad* iLoad)
+{
+    iLoad->RegisterPostLoadCallback(new USDItemPostLoadCB(this));
+
+    IOResult res = IO_OK;
+    ULONG    nb = 0;
+
+    res = iLoad->OpenChunk();
+
+    // Nothing to load. Could be a StageObject in an earlier version of the plugin.
+    if (res == IO_END) {
+        return IO_OK;
+    }
+
+    if (res != IO_OK) {
+        DbgAssert(0 && _T("Problem in loading saved data UsdStageObject."));
+        return res;
+    }
+
+    if (iLoad->CurChunkID() != SAVE_VERSION_CHUNK_ID) {
+        DbgAssert(iLoad->CurChunkID() == SAVE_VERSION_CHUNK_ID); // Should always be first
+        return IO_ERROR;
+    }
+
+    // Read save model version
+    int loadedVersion = -1;
+    res = iLoad->Read(&loadedVersion, sizeof(loadedVersion), &nb);
+    iLoad->CloseChunk();
+    if (IO_OK != res) {
+        DbgAssert(0 && _T("Problem in loading version of the UsdStageObject"));
+        return res;
+    }
+
+    // For now don't do anything. In the future there are actually multiple versions, we will
+    // need to deal with them individually...
+    if (loadedVersion != USD_OBJECT_DATA_SAVE_VERSION) {
+        return IO_OK;
+    }
+
+    std::vector<std::string> primvarNames;
+    std::vector<int>         primvarChannels;
+
+    while (IO_OK == (res = iLoad->OpenChunk())) {
+        switch (iLoad->CurChunkID()) {
+        // We will probably get multiple of these, as we can only have one string
+        // per chunk.
+        case PRIMVAR_MAPPING_NAME_CHUNK_ID: {
+            TCHAR*     primvarWstring = NULL;
+            const auto strRes = iLoad->ReadWStringChunk(&primvarWstring);
+            if (strRes != IO_OK) {
+                DbgAssert(0 && _T("Error reading string in primvar mapping for UsdStageObject."));
+                return strRes;
+            }
+
+            primvarNames.push_back(MaxUsd::MaxStringToUsdString(primvarWstring));
+            break;
+        }
+        case PRIMVAR_MAPPING_CHANNELS_CHUNK_ID: {
+            // All channels are in the same chunk.
+            size_t count = 0;
+            res = iLoad->Read(&count, sizeof(count), &nb);
+            if (IO_OK != res) {
+                DbgAssert(0 && _T("Error in reading count of primvar mappings."));
+                return res;
+            }
+            if (count > 0) {
+                primvarChannels.reserve(count);
+                for (int i = 0; i < count; ++i) {
+                    int        channel = 0;
+                    const auto intRes = iLoad->Read(&channel, sizeof(channel), &nb);
+                    if (intRes != IO_OK) {
+                        DbgAssert(
+                            0 && _T("Error reading int in primvar mapping for UsdStageObject."));
+                        return intRes;
+                    }
+                    primvarChannels.push_back(channel);
+                }
+            }
+            break;
+        }
+        case SESSION_LAYER_CHUNK_ID: {
+            TCHAR*     sessionLayerRaw = NULL;
+            const auto strRes = iLoad->ReadWStringChunk(&sessionLayerRaw);
+            if (strRes != IO_OK) {
+                DbgAssert(0 && _T("Error reading session layer from UsdStageObject."));
+                return strRes;
+            }
+            // The passed string is just a tag. The extension is important as SdfLayer will
+            // use it to determine the used file format for the layer.
+            sessionLayerFromMaxScene
+                = pxr::SdfLayer::CreateAnonymous("3dsmax_usd_session_layer.usd");
+            const bool layerImportRes = sessionLayerFromMaxScene->ImportFromString(
+                MaxUsd::MaxStringToUsdString(sessionLayerRaw));
+            // If there is an error, log it, but do not fail the entire max scene load.
+            if (!layerImportRes) {
+                const auto msg = _T("UsdStageObject load error. Unable to load the session layer ")
+                                 _T("from the max file.");
+                DbgAssert(0 && msg);
+                GetCOREInterface()->Log()->LogEntry(SYSLOG_ERROR, NO_DIALOG, nullptr, msg);
+            }
+            break;
+        }
+        case PAYLOAD_RULES_CHUNK_ID: {
+            TCHAR*     payloadRulesRaw = NULL;
+            const auto strRes = iLoad->ReadWStringChunk(&payloadRulesRaw);
+            if (strRes != IO_OK) {
+                DbgAssert(0 && _T("Error reading payload rules from UsdStageObject."));
+                return strRes;
+            }
+            savedPayloadRules = MaxUsd::MaxStringToUsdString(payloadRulesRaw);
+            break;
+        }
+        default: break;
+        }
+        iLoad->CloseChunk();
+    }
+
+    // We should always find the same number of names/channels.
+    if (primvarNames.size() != primvarChannels.size()) {
+        DbgAssert(primvarNames.size() == primvarChannels.size());
+        return IO_ERROR;
+    }
+
+    // Setup the primvar mappings from the data that we read.
+    auto& primvarMappingOptions = hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions();
+    primvarMappingOptions.ClearMappedPrimvars();
+    for (int i = 0; i < primvarNames.size(); ++i) {
+        // Already know here that both vectors are of the same size.
+        primvarMappingOptions.SetPrimvarChannelMapping(primvarNames[i], primvarChannels[i]);
+    }
+    return IO_OK;
+}
+
+bool USDStageObject::GetDisplayPurpose(pxr::TfToken purpose) const
+{
+    PBParameterIds id;
+    if (purpose == pxr::TfToken("guide")) {
+        id = DisplayGuide;
+    } else if (purpose == pxr::TfToken("render")) {
+        id = DisplayRender;
+    } else if (purpose == pxr::TfToken("proxy")) {
+        id = DisplayProxy;
+    } else {
+        return false;
+    }
+
+    BOOL     display;
+    Interval valid;
+    pb->GetValue(id, GetCOREInterface()->GetTime(), display, valid);
+    return display;
+}
+
+void USDStageObject::CheckRenderCache(TimeValue time, const pxr::TfTokenVector& renderTags)
+{
+    if (renderCache.IsValid(time, renderTags)) {
+        return;
+    }
+    // Cache is invalid.
+    ClearRenderCache();
+}
+
+void USDStageObject::ClearAllCaches()
+{
+    ClearRenderCache();
+    ClearBoundingBoxCache();
+}
+
+pxr::UsdTimeCode USDStageObject::ResolveRenderTimeCode(TimeValue time) const
+{
+    auto animMode = GetParamBlockInt(pb, AnimationMode);
+    auto resolvedAnimationModeIndex
+        = std::min(static_cast<int>(AnimationMode::CustomTimeCodePlayback), std::max(0, animMode));
+
+    pxr::UsdTimeCode timeCodeSample;
+    if (resolvedAnimationModeIndex == AnimationMode::OriginalRange) {
+        timeCodeSample = MaxUsd::GetUsdTimeCodeFromMaxTime(stage, time);
+    } else if (resolvedAnimationModeIndex == AnimationMode::CustomStartAndSpeed) {
+        auto customAnimStartFrame = GetParamBlockFloat(pb, CustomAnimationStartFrame);
+        auto customAnimSpeed = GetParamBlockFloat(pb, CustomAnimationSpeed);
+
+        auto stageStartCode = stage->GetStartTimeCode();
+        auto stageEndCode = stage->GetEndTimeCode();
+        auto sourceAnimLength = stageEndCode - stageStartCode;
+        auto maxAnimLength = MaxUsd::GetMaxFrameFromUsdTimeCode(stage, sourceAnimLength);
+
+        if (customAnimSpeed != 0.f) {
+            auto scaledAnimLength = maxAnimLength / customAnimSpeed;
+            timeCodeSample
+                = MaxUsd::GetOffsetTimeCode(stage, time, customAnimStartFrame, scaledAnimLength);
+        }
+    } else if (resolvedAnimationModeIndex == AnimationMode::CustomRange) {
+        auto customAnimStartFrame = GetParamBlockFloat(pb, CustomAnimationStartFrame);
+        auto customAnimEndFrame = GetParamBlockFloat(pb, CustomAnimationEndFrame);
+
+        timeCodeSample = MaxUsd::GetOffsetTimeCode(
+            stage, time, customAnimStartFrame, customAnimEndFrame - customAnimStartFrame);
+    } else if (resolvedAnimationModeIndex == AnimationMode::CustomTimeCodePlayback) {
+        auto customAnimPlaybackTimecode = GetParamBlockFloat(pb, CustomAnimationPlaybackTimecode);
+        timeCodeSample = pxr::UsdTimeCode(customAnimPlaybackTimecode);
+    }
+
+    return MaxUsd::MathUtils::RoundToSignificantDigit(timeCodeSample.GetValue(), 4);
+}
+
+namespace {
+class FindUsdCameraDependentsProc : public DependentEnumProc
+{
+public:
+    INodeTab result;
+
+    int proc(ReferenceMaker* rmaker) override
+    {
+        const auto node = dynamic_cast<INode*>(rmaker);
+        if (!node) {
+            return DEP_ENUM_CONTINUE;
+        }
+
+        const auto object = node->GetObjectRef();
+        if (!object) {
+            return DEP_ENUM_CONTINUE;
+        }
+
+        if (dynamic_cast<USDCameraObject*>(object->FindBaseObject())) {
+            result.AppendNode(node);
+            return DEP_ENUM_CONTINUE;
+        }
+        return DEP_ENUM_CONTINUE;
+    }
+};
+} // namespace
+
+void USDStageObject::BuildCameraNodes()
+{
+    const auto nodes = MaxUsd::GetReferencingNodes(this);
+    for (int i = 0; i < nodes.Count(); ++i) {
+        BuildCameraNodes(nodes[i]);
+    }
+}
+
+void USDStageObject::BuildCameraNodes(INode* stageNode) const
+{
+    if (theHold.RestoreOrRedoing()) {
+        return;
+    }
+
+    auto checkFlushUndo = []() {
+        // It is not safe to create/delete nodes outside of a hold, as it may lead to situations
+        // where the undo stack points to objects that do not exist anymore. For example:
+        // 1- Create a camera in hold/undo
+        // 2- Rename the camera in a hold/undo
+        // 3- Delete the camera NOT IN A HOLD / UNDO
+        // 4- Undo -> Attempts to undo the name change -> camera does not exist -> crash.
+        // Here, the only safe thing we can do is flush the undo buffer.
+        if (!theHold.Holding() || theHold.IsSuspended()) {
+            GetCOREInterface()->FlushUndoBuffer();
+        }
+    };
+
+    FindUsdCameraDependentsProc cameraFinder;
+    ;
+    stageNode->DoEnumDependents(&cameraFinder);
+
+    if (!stage || !GetParamBlockBool(pb, GenerateCameras)) {
+        if (cameraFinder.result.Count() > 0) {
+            // Set overrideDrivenTM to true - we generally block those cameras being deleted. But
+            // here we do want to delete.
+            GetCOREInterface10()->DeleteNodes(cameraFinder.result, true, true, true);
+            checkFlushUndo();
+        }
+        return;
+    }
+
+    bool needFlushUndoCheck = false;
+
+    pxr::TfHashMap<pxr::SdfPath, std::pair<INode*, bool>, pxr::SdfPath::Hash> generatedCameras;
+
+    for (const auto& cam : cameraFinder.result) {
+        const auto camObject
+            = dynamic_cast<USDCameraObject*>(cam->GetObjectRef()->FindBaseObject());
+        const MCHAR* primPathStr = nullptr;
+        Interval     valid = FOREVER;
+        camObject->GetParamBlock(0)->GetValue(
+            USDCameraParams_PrimPath, GetCOREInterface()->GetTime(), primPathStr, valid);
+        const auto path = pxr::SdfPath { MaxUsd::MaxStringToUsdString(primPathStr) };
+        generatedCameras.insert({ path, { cam, false } });
+    }
+
+    for (const auto& prim : stage->Traverse()) {
+        if (prim.IsA<pxr::UsdGeomCamera>() && prim.IsActive()) {
+            // Do we already have a max camera generated for this usd camera?
+            auto it = generatedCameras.find(prim.GetPath());
+            if (it != generatedCameras.end()) {
+                it->second.second = true;
+                continue;
+            }
+
+            const auto cameraObject
+                = GetCOREInterface17()->CreateInstance(CAMERA_CLASS_ID, USDCAMERAOBJECT_CLASS_ID);
+
+            USDCameraObject* camera = static_cast<USDCameraObject*>(cameraObject);
+
+            // Setup the camera with the stage reference and camera path.
+            const auto paramBlock = camera->GetParamBlock(0);
+
+            const auto pathStr = MaxUsd::UsdStringToMaxString(prim.GetPath().GetString());
+            paramBlock->SetValue(USDCameraParams_PrimPath, 0, pathStr);
+
+            auto node = GetCOREInterface()->CreateObjectNode(camera);
+            paramBlock->SetValue(USDCameraParams_USDStage, 0, stageNode);
+
+            camera->Eval(GetCOREInterface()->GetTime());
+
+            USDXformableController* transformController = new USDXformableController();
+
+            const auto controllerPb = transformController->GetParamBlock(0);
+
+            controllerPb->SetValue(USDControllerParams_USDStage, 0, stageNode);
+            controllerPb->SetValue(USDControllerParams_Path, 0, pathStr);
+            controllerPb->SetValue(USDControllerParams_PreventNodeDeletion, 0, TRUE);
+
+            node->SetTMController(transformController);
+            node->InvalidateTM();
+
+            auto name = MaxUsd::UsdStringToMaxString(prim.GetName().GetString());
+            node->SetName(name);
+
+            // Do we need this with the controller?
+            node->SetTransformLock(INODE_LOCKROT, INODE_LOCK_X, TRUE);
+            node->SetTransformLock(INODE_LOCKROT, INODE_LOCK_Y, TRUE);
+            node->SetTransformLock(INODE_LOCKROT, INODE_LOCK_Z, TRUE);
+            node->SetTransformLock(INODE_LOCKPOS, INODE_LOCK_X, TRUE);
+            node->SetTransformLock(INODE_LOCKPOS, INODE_LOCK_Y, TRUE);
+            node->SetTransformLock(INODE_LOCKPOS, INODE_LOCK_Z, TRUE);
+            node->SetTransformLock(INODE_LOCKSCL, INODE_LOCK_X, TRUE);
+            node->SetTransformLock(INODE_LOCKSCL, INODE_LOCK_Y, TRUE);
+            node->SetTransformLock(INODE_LOCKSCL, INODE_LOCK_Z, TRUE);
+
+            stageNode->AttachChild(node);
+            needFlushUndoCheck |= true;
+        }
+    }
+
+    // Check if we have any previously generated camera that is no longer needed.
+    for (const auto& entry : generatedCameras) {
+        if (!entry.second.second) {
+            // Set overrideDriven to true - we generally block those cameras being deleted.
+            // But here we do want to delete.
+            GetCOREInterface()->DeleteNode(entry.second.first, TRUE, TRUE);
+            needFlushUndoCheck |= true;
+        }
+    }
+
+    if (needFlushUndoCheck) {
+        checkFlushUndo();
+    }
+}
+
+void USDStageObject::DeleteCameraNodes(INode* stageNode) const
+{
+    if (theHold.RestoreOrRedoing()) {
+        return;
+    }
+
+    // It is not safe to delete nodes outside of a hold, as it may lead to situations
+    // where the undo stack points to objects that do not exist anymore. For example:
+    // 1- Create a camera in hold/undo
+    // 2- Rename the camera in a hold/undo
+    // 3- Delete the camera NOT IN A HOLD / UNDO
+    // 4- Undo -> Attempts to undo the name change -> camera does not exist -> crash.
+    // Here, the only safe thing we can do is flush the undo buffer.
+    if (!theHold.Holding() || theHold.IsSuspended()) {
+        GetCOREInterface()->FlushUndoBuffer();
+    }
+
+    FindUsdCameraDependentsProc cameraFinder;
+    stageNode->DoEnumDependents(&cameraFinder);
+    // Set overrideDrivenTM to true - we generally block those cameras being deleted. But here we do
+    // want to delete.
+    GetCOREInterface10()->DeleteNodes(cameraFinder.result, true, true, true);
+}
+
+void USDStageObject::SetupRenderDelegateDisplaySettings(INode* node) const
+{
+    // Setup the display settings.
+    auto& displaySettings = hydraEngine->GetRenderDelegate()->GetDisplaySettings();
+    auto& tracker = hydraEngine->GetChangeTracker();
+    // Clamp the display mode int to the enum bounds [0, USDPreviewSurface]
+    auto resolvedDisplayModeIndex = std::min(
+        static_cast<int>(HdMaxDisplaySettings::DisplayMode::USDPreviewSurface),
+        std::max(0, GetParamBlockInt(pb, DisplayMode)));
+    displaySettings.SetDisplayMode(
+        static_cast<HdMaxDisplaySettings::DisplayMode>(resolvedDisplayModeIndex), tracker);
+    displaySettings.SetWireColor(Color(node->GetWireColor()), tracker);
+}
+
+void USDStageObject::SetPrimvarChannelMappingDefaults()
+{
+    hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions().SetDefaultPrimvarChannelMappings();
+    OnPrimvarMappingChanged();
+}
+
+void USDStageObject::SetPrimvarChannelMapping(const wchar_t* primvarName, Value* channel)
+{
+    MaxUsd::mxs::SetPrimvarChannelMapping(
+        hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions(), primvarName, channel);
+    OnPrimvarMappingChanged();
+}
+
+void USDStageObject::ClearMappedPrimvars()
+{
+    hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions().ClearMappedPrimvars();
+    OnPrimvarMappingChanged();
+}
+
+void USDStageObject::OpenInUsdExplorer()
+{
+    USDExplorer::Instance()->OpenStage(this);
+    pb->SetValue(IsOpenInExplorer, GetCOREInterface()->GetTime(), TRUE);
+}
+
+void USDStageObject::CloseInUsdExplorer()
+{
+    USDExplorer::Instance()->CloseStage(this);
+    pb->SetValue(IsOpenInExplorer, GetCOREInterface()->GetTime(), FALSE);
+}
+
+const std::string& USDStageObject::GetGuid() const { return guid; }
+
+void USDStageObject::SaveStageLoadRules()
+{
+    savedPayloadRules = UsdUfe::convertLoadRulesToText(GetUSDStage()->GetLoadRules());
+}
+
+HdMaxEngine* USDStageObject::GetHydraEngine() const { return hydraEngine.get(); }
+
+Value* USDStageObject::GetPrimvarChannel(const wchar_t* primvarName)
+{
+    return MaxUsd::mxs::GetPrimvarChannel(
+        hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions(), primvarName);
+}
+
+Tab<const wchar_t*> USDStageObject::GetMappedPrimvars() const
+{
+    return MaxUsd::mxs::GetMappedPrimvars(
+        hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions());
+}
+
+void USDStageObject::OnPrimvarMappingChanged()
+{
+    hydraEngine->GetChangeTracker().MarkAllRprimsDirty(
+        pxr::HdChangeTracker::DirtyPrimvar | pxr::HdChangeTracker::DirtyMaterialId);
+    hydraEngine->GetRenderDelegate()
+        ->GetMaterialCollection()
+        ->Clear(); // Force a rebuild of materials.
+    ClearRenderCache();
+}
+
+bool USDStageObject::IsMappedPrimvar(const wchar_t* primvarName)
+{
+    return MaxUsd::mxs::IsMappedPrimvar(
+        hydraEngine->GetRenderDelegate()->GetPrimvarMappingOptions(), primvarName);
+}
+
+bool USDStageObject::UpdatePerViewItems(
+    const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+    MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+    MaxSDK::Graphics::UpdateViewContext&          viewContext,
+    MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer)
+{
+    {
+        // Workaround for the instance render item perf drop in 2023.1/2023.2.
+        // Previously held render items should have been cleared from the render node,
+        // and they are not - so do it ourselves.
+        // However, we must avoid removing render items that may have been built for
+        // the "display as box" and "selection brackets". This is tricky, as there is no
+        // direct exposure of these render items in the SDK.
+        MaxSDK::Graphics::RenderNodeHandle& renderNodeHandle = nodeContext.GetRenderNode();
+        bool                                displayAsBox = false;
+        for (int i = static_cast<int>(renderNodeHandle.GetNumberOfRenderItems()) - 1; i >= 0; i--) {
+            auto       ri = renderNodeHandle.GetRenderItem(i);
+            const auto consolidationKey = ri.GetConsolidationData().Key;
+
+            // The "display as box" mode uses a BoxStyleItem, it has consolidation data.
+            if (consolidationKey) {
+                // Do not SplineItems, which is what we generate for the Icon.
+                const auto splineItemKey
+                    = dynamic_cast<MaxSDK::Graphics::Utilities::SplineItemKey*>(consolidationKey);
+                if (!splineItemKey) {
+                    // Not a spline, assume a BoxStyleItem
+                    displayAsBox = true;
+                    continue;
+                }
+            }
+
+            // The selection brackets use a legacy render item type, not exposed in the SDK.
+            // This render item is always present, whether or not brackets end up actually
+            // displayed. However, we are able to detect these items via their visibility group, in
+            // most cases the visibility group is set to shader, wireframe, or gizmo in 3dsMax. The
+            // items we generate are set to shaded/wireframe.
+            if (ri.GetVisibilityGroup() == MaxSDK::Graphics::RenderItemVisible_Unknown) {
+                continue;
+            }
+            renderNodeHandle.RemoveRenderItem(i);
+        }
+        // At this point we should only have one render item, the legacy render item - or two, if we
+        // are in box display.
+        DbgAssert(renderNodeHandle.GetNumberOfRenderItems() == (displayAsBox ? 2 : 1));
+    }
+
+    const bool showIcon = GetParamBlockBool(pb, ShowIcon);
+    if (showIcon) {
+        shapeIcon.UpdatePerNodeItems(updateDisplayContext, nodeContext, targetRenderItemContainer);
+    }
+
+    const auto stage = GetUSDStage();
+    if (!stage) {
+        return showIcon;
+    }
+
+    // If the animation is playing, render at the beginning of the current frame,
+    // to ease caching
+    TimeValue time = updateDisplayContext.GetDisplayTime();
+    if (GetCOREInterface()->IsAnimPlaying()) {
+        time = time - time % GetTicksPerFrame();
+    }
+
+    auto node = nodeContext.GetRenderNode().GetMaxNode();
+    SetupRenderDelegateDisplaySettings(node);
+
+    auto view = viewContext.GetView();
+
+    // Figure out which "representations" we will need. Shaded, wireframe, or both.
+    pxr::TfTokenVector reprs;
+    // We need the shaded render items if we are in a shaded view, or if we are in a wireframe
+    // view and that the animation is not playing. Indeed, shaded items are required to get the
+    // selection highlighting in the Max viewport.
+    if (!view->IsWire() || !GetCOREInterface()->IsAnimPlaying()) {
+        reprs.push_back(pxr::HdReprTokens->smoothHull);
+    }
+    const auto vpSettings = static_cast<MaxSDK::Graphics::IViewportViewSetting*>(
+        view->GetInterface(IVIEWPORT_SETTINGS_INTERFACE_ID));
+    if (view->IsWire() || vpSettings->GetShowEdgedFaces()) {
+        reprs.push_back(pxr::HdReprTokens->wire);
+    }
+
+    if (isSelectionDisplayDirty) {
+        UpdatePrimSelectionDisplay();
+        isSelectionDisplayDirty = false;
+    }
+
+    auto axisAndUnitTransform = GetStageRootTransform();
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy
+        = static_cast<HdMaxConsolidator::Strategy>(GetParamBlockInt(pb, MeshMergeMode));
+    consolidationConfig.visualize = GetParamBlockBool(pb, MeshMergeDiagnosticView);
+    consolidationConfig.maxCellSize = GetParamBlockInt(pb, MaxMergedMeshTriangles);
+    consolidationConfig.maxInstanceCount = GetParamBlockInt(pb, MeshMergeMaxInstances);
+    consolidationConfig.maxTriangles = GetParamBlockInt(pb, MeshMergeMaxTriangles);
+    consolidationConfig.displaySettings = hydraEngine->GetRenderDelegate()->GetDisplaySettings();
+
+    const auto timeCodeSample = ResolveRenderTimeCode(time);
+
+    // HACK	: If a render purpose is already set, and a new one is enabled, for some reason
+    // hydra does not flag dirty the meshes that now need a Sync() to be displayed. It works as
+    // expected when going from 0 to N purposes enabled, but not when going from 1 to N purposes.
+    // Work around this with an additional render, where no render purposes are enabled at all. It
+    // is pretty cheap to do so as nothing meaningful should get flagged dirty between these to
+    // renders, so we don't do that much more work than with a single call.
+    if (displayPurposeUpdated) {
+        hydraEngine->Render(
+            stage->GetPseudoRoot(),
+            axisAndUnitTransform,
+            targetRenderItemContainer,
+            timeCodeSample,
+            updateDisplayContext,
+            nodeContext,
+            reprs,
+            { pxr::HdTokens->geometry },
+            usdMaterials.GetAs<MultiMtl>(),
+            consolidationConfig,
+            view,
+            buildOfflineRenderMaterial,
+            progressReporter);
+        displayPurposeUpdated = false;
+    }
+
+    hydraEngine->Render(
+        stage->GetPseudoRoot(),
+        axisAndUnitTransform,
+        targetRenderItemContainer,
+        timeCodeSample,
+        updateDisplayContext,
+        nodeContext,
+        reprs,
+        GetRenderTags(),
+        usdMaterials.GetAs<MultiMtl>(),
+        consolidationConfig,
+        view,
+        buildOfflineRenderMaterial,
+        progressReporter);
+
+    buildOfflineRenderMaterial = false;
+
+    // Setup the object's box for node level culling.
+    auto renderNode = nodeContext.GetRenderNode();
+    Box3 localBoundingBox;
+    GetLocalBoundBox(time, node, viewContext.GetView(), localBoundingBox);
+    renderNode.SetObjectBox(localBoundingBox);
+    return true;
+}
+
+int USDStageObject::GetStageCacheId()
+{
+    // Force the stage to load from the currently set layer, if not already.
+    GetUSDStage();
+    return this->stageCacheId.ToLongInt();
+}
+
+unsigned long USDStageObject::GetObjectDisplayRequirement() const
+{
+    return MaxSDK::Graphics::ObjectDisplayRequireUpdatePerViewItems;
+}
+
+Interval USDStageObject::ObjectValidity(TimeValue time)
+{
+    // Object invalidates when time changes. The USD stage can be animated.
+    return Interval(time, time);
+}
+
+int USDStageObject::HitTest(
+    TimeValue t,
+    INode*    iNode,
+    int       type,
+    int       crossing,
+    int       flags,
+    IPoint2*  p,
+    ViewExp*  vpt)
+{
+    auto gw = vpt->getGW();
+    bool showIcon = GetParamBlockBool(pb, ShowIcon);
+
+    const auto& stage = GetUSDStage();
+    if (!stage && !showIcon) {
+        return false;
+    }
+
+    const bool selectedOnly = flags & HIT_SELONLY;
+    const bool unselectedOnly = flags & HIT_UNSELONLY;
+    const bool selectAny = !selectedOnly && !unselectedOnly;
+
+    if (stage) {
+        HitRegion hitRegion;
+        MakeHitRegion(hitRegion, type, crossing, 1 /*epsilon*/, p);
+
+        bool isPointHitTest = hitRegion.type == POINT_RGN;
+
+        // We maintain a cache for point hit testing. If we are point hit testing, first look
+        // at the cache...
+        // Consider that if the picking point has not changed since last picking computation, we can
+        // reuse previously computed target. There are many cases where this could break (scene
+        // update, animation, procedural camera move...) Ideally, this should be precomputed each
+        // time a new pick action is initiated (sadly, no notification is available for that).
+        bool                                                   useCachedPointHit = isPointHitTest;
+        std::unordered_map<INode*, HitTestCacheData>::iterator cachedHit;
+        if (useCachedPointHit) {
+            cachedHit = hitTestingCache.find(iNode);
+            useCachedPointHit
+                = cachedHit != hitTestingCache.end() && cachedHit->second.cursorPos == *p;
+        }
+
+        std::vector<USDPickingRenderer::HitInfo> hitInfos;
+
+        if (!useCachedPointHit) {
+            hitInfos = PickStage(
+                vpt,
+                iNode,
+                hitRegion,
+                vpt->IsWire() ? pxr::UsdImagingGLDrawMode::DRAW_WIREFRAME
+                              : pxr::UsdImagingGLDrawMode::DRAW_GEOM_ONLY,
+                pxr::HdxPickTokens->pickPrimsAndInstances,
+                t,
+                {});
+
+            // Cache point hitTesting.
+            if (isPointHitTest) {
+                HitTestCacheData hitData;
+                hitData.cursorPos = *p;
+                if (hitInfos.empty()) {
+                    hitData.hit = {};
+                } else {
+                    hitData.hit = hitInfos[0];
+                }
+                hitTestingCache[iNode] = hitData;
+            }
+        } else {
+            if (!cachedHit->second.hit.primPath.IsEmpty()) {
+                hitInfos = { cachedHit->second.hit };
+            }
+        }
+
+        if (!hitInfos.empty()) {
+            // Use the first hit prim for the hit distance.
+            // The hit point is in world space, so make sure the GW transform is the identity.
+            // Reapply the transform after we are done.
+            auto currentGwTransform = gw->getTransform();
+            gw->setTransform(Matrix3::Identity);
+            // Calculate native devices coordinates. The z component of the output point
+            // is the depth we are interested in for hit testing.
+            IPoint3 out;
+            gw->hTransPoint(&hitInfos[0].hitPoint, &out);
+            gw->setTransform(currentGwTransform);
+            gw->setHitDistance(static_cast<DWORD>(out.z));
+
+            // Log the hit, necessary for sub object selection.
+            std::vector<UsdHitData::Hit> usdHit;
+            for (int i = 0; i < hitInfos.size(); ++i) {
+                // If an instancer is defined, we treat things a bit differently whether the
+                // instancer is generated on the fly from scene graph instancing or if it is a point
+                // instancer. Point instances do not have actual paths, for not we just show all
+                // instances selected, so we use the instancer path itself.
+                auto instancerPrim = stage->GetPrimAtPath(hitInfos[i].instancerPath);
+                if (instancerPrim.IsValid() && instancerPrim.IsA<pxr::UsdGeomPointInstancer>()) {
+                    usdHit.push_back({ hitInfos[i].instancerPath, hitInfos[i].instanceIndex });
+                } else {
+                    usdHit.push_back({ hitInfos[i].primPath, -1 });
+                }
+            }
+
+            // Need to consider hit flags VS selection. This is important for sub-object
+            // select/transform to behave correctly.
+            if (!selectAny) {
+                const auto& globalSelection = Ufe::GlobalSelection::get();
+                bool        hasHit = false;
+                for (const auto& path : usdHit) {
+                    const auto& ufePath = MaxUsd::ufe::getUsdPrimUfePath(this, path.primPath);
+                    const bool  isSelected = globalSelection->contains(ufePath);
+                    if ((selectedOnly && isSelected) || (unselectedOnly && !isSelected)) {
+                        hasHit = true;
+                        break;
+                    }
+                }
+                if (!hasHit) {
+                    return false;
+                }
+            }
+
+            // In sub-object mode, 3dsmax will perform hit testing a few times. In one of the
+            // passes, it's trying to figure out if it should switch the axis we are transforming
+            // against (like, move in X,Y or Z) when dragging. Don't log the hit.
+            if (!(flags & HIT_SWITCH_GIZMO)) {
+                vpt->LogHit(iNode, nullptr, static_cast<DWORD>(out.z), 0, new UsdHitData(usdHit));
+            }
+            return true;
+        }
+    }
+    if (showIcon) {
+        // This Hit test also set the GraphicsWindow Hit Distance.
+        if (shapeIcon.HitTest(t, iNode, type, crossing, flags, p, vpt)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+int USDStageObject::HitTest(
+    TimeValue   t,
+    INode*      iNode,
+    int         type,
+    int         crossing,
+    int         flags,
+    IPoint2*    p,
+    ViewExp*    vpt,
+    ModContext* mc)
+{
+    return HitTest(t, iNode, type, crossing, flags, p, vpt);
+}
+
+std::vector<USDPickingRenderer::HitInfo> USDStageObject::PickStage(
+    ViewExp*                  viewport,
+    INode*                    node,
+    const HitRegion&          hitRegion,
+    pxr::UsdImagingGLDrawMode drawMode,
+    const pxr::TfToken&       pickTarget,
+    TimeValue                 time,
+    const pxr::SdfPathVector& excludedPaths)
+{
+    if (!stage) {
+        return {};
+    }
+
+    if (!pickingRenderer) {
+        pickingRenderer = std::make_unique<USDPickingRenderer>(stage);
+    }
+
+    Matrix3                    viewMatrixInv;
+    MaxSDK::Graphics::Matrix44 viewProjectionMatrix;
+
+    auto  gw = viewport->getGW();
+    int   persp;
+    float hither, yon;
+    gw->getCameraMatrix(viewProjectionMatrix.m, &viewMatrixInv, &persp, &hither, &yon);
+
+    MaxSDK::Graphics::Matrix44 viewMatrix;
+    MaxSDK::Graphics::MaxWorldMatrixToMatrix44(viewMatrix, Inverse(viewMatrixInv));
+
+    MaxSDK::Graphics::Matrix44 projectionMatrix;
+    {
+        const pxr::GfMatrix4d vmi = MaxUsd::ToUsd(viewMatrixInv);
+        const pxr::GfMatrix4d proj = vmi * MaxUsd::ToUsd(viewProjectionMatrix);
+        projectionMatrix = MaxUsd::ToMax(proj);
+    }
+
+    MaxSDK::Graphics::ViewParameter viewParameter;
+    viewParameter.SetViewExp(viewport);
+    const MaxSDK::Graphics::RectangleSize size
+        = { std::size_t(gw->getWinSizeX()), std::size_t(gw->getWinSizeY()) };
+    viewParameter.SetSize(size);
+    MaxSDK::Graphics::CameraPtr camera = MaxSDK::Graphics::ICamera::Create();
+    camera->SetProjectionMatrix(projectionMatrix);
+    camera->SetViewMatrix(viewMatrix);
+    camera->SetTargetDistance(viewport->GetFocalDist());
+
+    const auto stageTransform = GetStageRootTransform() * MaxUsd::ToUsd(node->GetObjectTM(time));
+
+    auto hits = pickingRenderer->Pick(
+        stageTransform,
+        camera,
+        size,
+        hitRegion,
+        drawMode,
+        GetDisplayPurpose(pxr::TfToken("proxy")),
+        GetDisplayPurpose(pxr::TfToken("guide")),
+        GetDisplayPurpose(pxr::TfToken("render")),
+        pickTarget,
+        ResolveRenderTimeCode(time),
+        excludedPaths);
+
+    return hits;
+}
+
+CreateMouseCallBack* USDStageObject::GetCreateMouseCallBack()
+{
+    static CreateAtPosition createMouseCallback {};
+    return &createMouseCallback;
+}
+
+void USDStageObject::InitNodeName(MSTR& name) { name = _M("UsdStage"); }
+
+const wchar_t* USDStageObject::GetObjectName(bool localized) const { return _M("UsdStage"); }
+
+ObjectState USDStageObject::Eval(TimeValue t) { return ObjectState(this); }
+
+RefTargetHandle USDStageObject::Clone(RemapDir& remap)
+{
+    USDStageObject* newStage = new USDStageObject();
+    newStage->ReplaceReference(0, remap.CloneRef(pb));
+    BaseClone(this, newStage, remap);
+    newStage->savedPayloadRules = savedPayloadRules;
+    // Manually trigger stage loading in the cloned object, as we don't setup
+    // the root layer in the usual way.
+    newStage->LoadUSDStage();
+    return (newStage);
+}
+
+void USDStageObject::GetDeformBBox(TimeValue t, Box3& box, Matrix3* tm, BOOL useSel)
+{
+    box = GetStageBoundingBox(GetStageRootTransform(), t, nullptr, useSel);
+    if (tm && !box.IsEmpty()) {
+        box = box * *tm;
+    }
+}
+
+BOOL USDStageObject::PolygonCount(TimeValue t, int& numFaces, int& numVerts)
+{
+    if (t != GetCOREInterface()->GetTime()) {
+        return FALSE;
+    }
+    numFaces = int(this->numFaces);
+    numVerts = int(this->numVerts);
+    return TRUE;
+}
+
+Mesh* USDStageObject::GetRenderMesh(TimeValue t, INode* inode, View& view, BOOL& needDelete)
+{
+    // Keep control of the lifetime of the meshes we produce.
+    needDelete = false;
+
+    // Some renderers do not like receiving null meshes from GetRenderMesh() in some cases. Playing
+    // nice...
+    static Mesh emptyMesh;
+
+    const auto stage = GetUSDStage();
+    if (!stage || stage.IsInvalid()) {
+        return &emptyMesh;
+    }
+
+    const auto renderTags = GetRenderTags();
+
+    // Warning : some renderers hold on to the mesh pointer that we return (scanline), so we
+    // must make sure that the mesh survives the whole render call. If a day comes where the mesh
+    // returned must be different per-node, we will need to make sure that any previously generated
+    // mesh for another instance is kept alive somehow.
+    CheckRenderCache(t, renderTags);
+
+    if (renderCache.fullMesh) {
+        return renderCache.fullMesh.get();
+    }
+
+    // Setup the display settings. For offline rendering via the generic apis, use
+    // UsdPreviewSurface.
+    auto& displaySettings = hydraEngine->GetRenderDelegate()->GetDisplaySettings();
+    auto& changeTracker = hydraEngine->GetChangeTracker();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::USDPreviewSurface, changeTracker);
+
+    const auto timeCodeSample = ResolveRenderTimeCode(t);
+
+    if (renderCache.meshes.empty()) {
+        hydraEngine->RenderToMeshes(
+            inode,
+            stage->GetPseudoRoot(),
+            GetStageRootTransform(),
+            renderCache.meshes,
+            renderCache.transforms,
+            timeCodeSample,
+            renderTags);
+    }
+
+    if (renderCache.meshes.empty()) {
+        return &emptyMesh;
+    }
+
+    renderCache.fullMesh = std::make_unique<Mesh>();
+    MaxUsd::MeshUtils::AttachAll(renderCache.meshes, renderCache.transforms, *renderCache.fullMesh);
+
+    renderCache.SetValidity(t, renderTags, inode->GetMtl());
+    return renderCache.fullMesh.get();
+}
+
+pxr::TfTokenVector USDStageObject::GetRenderTags() const
+{
+    pxr::TfTokenVector renderTags { pxr::HdTokens->geometry };
+    if (GetDisplayPurpose(pxr::TfToken("proxy"))) {
+        renderTags.push_back(pxr::HdRenderTagTokens->proxy);
+    }
+    if (GetDisplayPurpose(pxr::TfToken("guide"))) {
+        renderTags.push_back(pxr::HdRenderTagTokens->guide);
+    }
+    if (GetDisplayPurpose(pxr::TfToken("render"))) {
+        renderTags.push_back(pxr::HdRenderTagTokens->render);
+    }
+    return renderTags;
+}
+
+void USDStageObject::UpdateViewportStageIcon()
+{
+    UsdStageObjectIcon::GetIcon(shapeIcon.shape);
+    const float iconScale = GetParamBlockFloat(pb, IconScale);
+    if (!MaxUsd::MathUtils::IsAlmostZero(abs(iconScale - 1.0f))) {
+        Matrix3 scaleTM;
+        scaleTM.Scale(Point3(iconScale, iconScale, 1.0f));
+        shapeIcon.shape.Transform(scaleTM);
+    }
+}
+
+void USDStageObject::RegisterProgressReporter(const MaxUsd::ProgressReporter& reporter)
+{
+    progressReporter = reporter;
+}
+
+void USDStageObject::UnregisterProgressReporter() { progressReporter = {}; }
+
+Mtl* USDStageObject::GetUsdPreviewSurfaceMaterials(bool sync)
+{
+    // Done on the next render loop.
+    if (sync) {
+        buildOfflineRenderMaterial = true;
+        // Complete redraw, to make sure the material is generated immediately as we want to return
+        // it right away.
+        Redraw(true);
+    }
+    return usdMaterials.GetAs<Mtl>();
+}
+
+int USDStageObject::NumberOfRenderMeshes()
+{
+    const auto stage = GetUSDStage();
+    if (!stage || stage.IsInvalid()) {
+        return 0;
+    }
+
+    return int(hydraEngine->GetNumRenderPrim(GetRenderTags()));
+}
+
+Mesh* USDStageObject::GetMultipleRenderMesh(
+    TimeValue t,
+    INode*    inode,
+    View&     view,
+    BOOL&     needDelete,
+    int       meshNumber)
+{
+    // Keep control of the lifetime of the meshes we produce.
+    needDelete = false;
+
+    const auto stage = GetUSDStage();
+    if (!stage || stage.IsInvalid()) {
+        nullptr;
+    }
+
+    const auto renderTags = GetRenderTags();
+    CheckRenderCache(t, renderTags);
+    if (!renderCache.meshes.empty()) {
+        return renderCache.meshes[meshNumber].get();
+    }
+
+    // Setup the display settings. For rendering, go for the highest quality.
+    auto& displaySettings = hydraEngine->GetRenderDelegate()->GetDisplaySettings();
+    auto& changeTracker = hydraEngine->GetChangeTracker();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::USDPreviewSurface, changeTracker);
+
+    const auto timeCodeSample = ResolveRenderTimeCode(t);
+
+    hydraEngine->RenderToMeshes(
+        inode,
+        stage->GetPseudoRoot(),
+        GetStageRootTransform(),
+        renderCache.meshes,
+        renderCache.transforms,
+        timeCodeSample,
+        renderTags);
+    renderCache.SetValidity(t, renderTags, inode->GetMtl());
+    return renderCache.meshes[meshNumber].get();
+}
+
+void USDStageObject::GetMultipleRenderMeshTM(
+    TimeValue t,
+    INode*    inode,
+    View&     view,
+    int       meshNumber,
+    Matrix3&  meshTM,
+    Interval& meshTMValid)
+{
+    const auto stage = GetUSDStage();
+    if (!stage || stage.IsInvalid()) {
+        return;
+    }
+    const auto renderTags = GetRenderTags();
+    CheckRenderCache(t, renderTags);
+
+    if (!renderCache.transforms.empty()) {
+        meshTM = Inverse(inode->GetObjectTM(t)) * renderCache.transforms[meshNumber]
+            * inode->GetObjectTM(t);
+        return;
+    }
+    const auto timeCodeSample = ResolveRenderTimeCode(t);
+    hydraEngine->RenderToMeshes(
+        inode,
+        stage->GetPseudoRoot(),
+        GetStageRootTransform(),
+        renderCache.meshes,
+        renderCache.transforms,
+        timeCodeSample,
+        renderTags);
+    renderCache.SetValidity(t, renderTags, inode->GetMtl());
+    meshTM = Inverse(inode->GetObjectTM(t)) * renderCache.transforms[meshNumber]
+        * inode->GetObjectTM(t);
+}
+
+void USDStageObject::Redraw(bool completeRedraw)
+{
+    // Notify that the object has changed and force a redraw.
+    Interval valid = FOREVER;
+    this->ForceNotify(valid);
+    if (completeRedraw) {
+        GetCOREInterface()->ForceCompleteRedraw();
+        return;
+    }
+    GetCOREInterface()->RedrawViews(GetCOREInterface()->GetTime());
+}
+
+void USDStageObject::InvalidateParams()
+{
+    const auto usdStageGeneralParamsMap = pb->GetMap(ParamMapID::UsdStageGeneral);
+    if (usdStageGeneralParamsMap) {
+        usdStageGeneralParamsMap->Invalidate(SourceMetersPerUnit);
+        usdStageGeneralParamsMap->Invalidate(SourceUpAxis);
+    }
+    const auto usdStageAnimationParamsMap = pb->GetMap(ParamMapID::UsdStageAnimation);
+    if (usdStageAnimationParamsMap) {
+        usdStageAnimationParamsMap->Invalidate(MaxAnimationStartFrame);
+        usdStageAnimationParamsMap->Invalidate(MaxAnimationEndFrame);
+        usdStageAnimationParamsMap->Invalidate(SourceAnimationStartTimeCode);
+        usdStageAnimationParamsMap->Invalidate(SourceAnimationEndTimeCode);
+        usdStageAnimationParamsMap->Invalidate(SourceAnimationTPS);
+    }
+}
+
+bool USDStageObject::PrepareDisplay(
+    const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext)
+{
+    return shapeIcon.PrepareDisplay(prepareDisplayContext);
+}
+
+void USDStageObject::WireColorChanged(Color newColor)
+{
+    // Only need to redraw if we are displaying using the wire color.
+    if (GetParamBlockInt(pb, DisplayMode) == int(HdMaxDisplaySettings::DisplayMode::WireColor)) {
+        Redraw();
+    }
+}
+
+void USDStageObject::Reload()
+{
+    const auto stage = GetUSDStage();
+    if (!stage) {
+        return;
+    }
+    stage->Reload();
+    Redraw();
+}
+
+void USDStageObject::ClearSessionLayer()
+{
+    const auto stage = GetUSDStage();
+    if (!stage) {
+        return;
+    }
+    stage->GetSessionLayer()->Clear();
+    // We still want to respect the current configuration of draw mode generation.
+    GenerateDrawModes();
+    Redraw();
+}
+
+USDStageObject::NodeEventCallback::NodeEventCallback(USDStageObject* stageObject)
+    : object(stageObject)
+{
+}
+
+void USDStageObject::NodeEventCallback::WireColorChanged(NodeKeyTab& nodes)
+{
+    for (int i = 0; i < nodes.Count(); ++i) {
+        INode* node = NodeEventNamespace::GetNodeByKey(nodes[i]);
+        if (node->GetObjectRef() == object) {
+            object->WireColorChanged(Color(node->GetWireColor()));
+            return;
+        }
+    }
+}
+
+Box3 USDStageObject::GetStageBoundingBox(
+    pxr::GfMatrix4d rootTransform,
+    TimeValue       time,
+    INode*          node,
+    bool            useSel)
+{
+    Box3 boundingBox;
+    if (!stage) {
+        return boundingBox;
+    }
+
+    // If the animation is playing, compute the bounding box at the beginning of
+    // the current frame, to ease caching.
+    auto evaluationTime = time;
+    if (GetCOREInterface()->IsAnimPlaying()) {
+        evaluationTime = evaluationTime - evaluationTime % GetTicksPerFrame();
+    }
+
+    // If we are not in selection mode, check if this frame's bounding box is already in the cache.
+    // (i.e boundingBox needs to be recomputed based on selection at any given evaluationTime)
+    const auto it = boundingBoxCache.find(evaluationTime);
+    if (!useSel && it != boundingBoxCache.end()) {
+        return it->second;
+    }
+
+    // Compute the bounding box.
+    const auto timeCode = ResolveRenderTimeCode(evaluationTime);
+
+    const auto stage = GetUSDStage();
+    if (!stage || stage.IsInvalid()) {
+        return boundingBox;
+    }
+
+    if (node) {
+        SetupRenderDelegateDisplaySettings(node);
+        hydraEngine->UpdateRootPrim(stage->GetPseudoRoot(), node->GetMtl());
+    } else {
+        hydraEngine->UpdateRootPrim(stage->GetPseudoRoot());
+    }
+    hydraEngine->HydraRender(rootTransform, timeCode, GetRenderTags());
+
+    auto includedPurposes = GetRenderTags();
+    includedPurposes.insert(includedPurposes.end(), pxr::UsdGeomTokens->default_);
+
+    std::vector<HdMaxRenderData*> visibleData;
+    hydraEngine->GetRenderDelegate()->GetVisibleRenderData(includedPurposes, visibleData);
+
+    pxr::GfBBox3d totalBoundingBox;
+
+    numVerts = 0;
+    numFaces = 0;
+
+    for (const auto data : visibleData) {
+        if (useSel) {
+            auto selState
+                = GetHydraEngine()->GetRenderDelegate()->GetSelectionStatus(data->rPrimPath);
+            if (!selState || (!selState->fullySelected && selState->instanceIndices.empty())) {
+                continue;
+            }
+        }
+
+        // It is a good time to compute the stats. Max requests the bounding box before anything
+        // else, and this is the earlier we actually can have this info. We also don't need to
+        // recompute the stats each frame, only when things change, similar to the bounding box
+        // (which only has a few more cases in which we need to recompute).
+        const auto numInstances = std::max(1, int(data->instancer->GetNumInstances()));
+        numVerts += data->sourceNumPoints * numInstances;
+        numFaces += data->sourceNumFaces * numInstances;
+
+        pxr::GfBBox3d bboxToUse;
+        if (data->IsInstanced() && useSel) {
+            bboxToUse = data->instancer->ComputeSelectionBoundingBox(data->extent);
+        } else {
+            bboxToUse = data->boundingBox;
+        }
+
+        // Ignore empty bounding boxes, or obscenely large ones.
+        const auto& range = bboxToUse.GetRange();
+        if (range.IsEmpty() || range.GetSize().GetLength() > FLT_MAX) {
+            continue;
+        }
+        totalBoundingBox = pxr::GfBBox3d::Combine(totalBoundingBox, bboxToUse);
+    }
+
+    auto extent = totalBoundingBox.GetRange();
+    if (extent.IsEmpty() && !useSel) {
+        if (visibleData.empty()) {
+            return boundingBox;
+        }
+
+        // We prefer to compute the bounding box from the data that is visible. However, it is
+        // possible for geometry to not have the extent attribute setup at all. In this case, the
+        // result of our computation could be empty. If this happens, fallback to a full compute of
+        // the world bounds. This may not match exactly the visible data (some things we may not be
+        // supported our delegate), but it is better than nothing.
+        pxr::UsdGeomBBoxCache tmpCache { timeCode, { includedPurposes }, true };
+        totalBoundingBox = tmpCache.ComputeWorldBound(stage->GetPseudoRoot());
+        extent = totalBoundingBox.GetRange();
+
+        // If the extent is still empty, give up
+        if (extent.IsEmpty()) {
+            return boundingBox;
+        }
+
+        // Transform to 3dsmax's axis/unit,
+        const auto   rootXform = GetStageRootTransform();
+        const auto&  min = extent.GetMin();
+        const auto&  max = extent.GetMax();
+        auto         tMin = rootXform.Transform(min);
+        auto         tMax = rootXform.Transform(max);
+        pxr::GfVec3d bbMin = { std::min(tMin[0], tMax[0]),
+                               std::min(tMin[1], tMax[1]),
+                               std::min(tMin[2], tMax[2]) };
+        pxr::GfVec3d bbMax = { std::max(tMin[0], tMax[0]),
+                               std::max(tMin[1], tMax[1]),
+                               std::max(tMin[2], tMax[2]) };
+
+        extent = { bbMin, bbMax };
+    }
+
+    // If we are in selection mode, and the extent is empty, return bounding box.
+    if (extent.IsEmpty() && useSel) {
+        return boundingBox;
+    }
+
+    boundingBox = Box3(MaxUsd::ToMax(extent.GetMin()), MaxUsd::ToMax(extent.GetMax()));
+
+    // Only cache when we are not in selection mode since the bounding box can change for a given
+    // evaluationTime based on what is selected, thus needing a recompute.
+    if (!useSel) {
+        boundingBoxCache[evaluationTime] = boundingBox;
+    }
+
+    return boundingBox;
+}
diff --git a/src/MaxUsdObjects/Objects/USDStageObject.h b/src/MaxUsdObjects/Objects/USDStageObject.h
new file mode 100644
index 0000000..cddebfd
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDStageObject.h
@@ -0,0 +1,991 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/MaxUsdObjectsAPI.h>
+#include <MaxUsdObjects/USDPickingRenderer.h>
+
+#include <RenderDelegate/HdMaxEngine.h>
+
+#include <MaxUsd/Interfaces/IUSDStageProvider.h>
+#include <MaxUsd/Utilities/ProgressReporter.h>
+
+#include <ISceneEventManager.h>
+#include <future>
+#include <qpointer.h>
+#include <qwidget.h>
+#include <splshape.h>
+
+class SubObjectManip;
+
+extern Class_ID USDSTAGEOBJECT_CLASS_ID;
+
+// No way to ensure custom notification codes are unique...but with any luck, it will be!
+#define NOTIFY_SELECTION_HIGHLIGHT_ENABLED_CHANGED REFMSG_USER + 0x29415134
+
+enum
+{
+    PBLOCK_REF = 0
+};
+
+enum PBParameterIds
+{
+    StageFile,
+    StageMask,
+    CacheId,
+    AxisAndUnitTransform,
+    DisplayRender,
+    DisplayProxy,
+    DisplayGuide,
+    DisplayMode,
+    LoadPayloads, // obsolete
+    SourceMetersPerUnit,
+    SourceUpAxis,
+    MeshMergeMode,
+    MeshMergeDiagnosticView,
+    MeshMergeMaxTriangles,
+    MaxMergedMeshTriangles,
+    MeshMergeMaxInstances,
+    ShowIcon,
+    IconScale,
+    PointedPrim,
+    CustomAnimationStartFrame,
+    CustomAnimationSpeed,
+    CustomAnimationEndFrame,
+    CustomAnimationPlaybackTimecode,
+    AnimationMode,
+    SourceAnimationStartTimeCode,
+    SourceAnimationEndTimeCode,
+    SourceAnimationTPS,
+    MaxAnimationStartFrame,
+    MaxAnimationEndFrame,
+    RenderUsdTimeCode,
+    Guid,
+    IsOpenInExplorer,
+    KindSelection,
+    GenerateCameras,
+    GeneratePointInstancesDrawModes,
+    PointInstancesDrawMode
+};
+
+// These correspond to the different rollouts.
+enum ParamMapID
+{
+    UsdStageGeneral,
+    UsdStageRenderSettings,
+    UsdStageViewportDisplay,
+    UsdStageViewportPerformance,
+    UsdStageAnimation,
+    UsdStageSelection
+};
+
+enum AnimationMode
+{
+    OriginalRange,
+    CustomStartAndSpeed,
+    CustomRange,
+    CustomTimeCodePlayback
+};
+
+enum class DrawMode
+{
+    Default,
+    BoxCards,
+    CrossCards
+};
+
+enum class SelectionMode
+{
+    Stage,
+    Prim
+};
+
+/**
+ * \brief Derived 3dsMax hit data, which we use to log hits on USD prims, so that we can access
+ * them back again when selecting sub-objects.
+ */
+class UsdHitData : public HitData
+{
+public:
+    struct Hit
+    {
+        pxr::SdfPath primPath;
+        int          instanceIdx = -1;
+    };
+
+    UsdHitData(const std::vector<Hit>& primPaths) { this->hits = primPaths; }
+
+    const std::vector<Hit>& GetHits() { return this->hits; }
+
+private:
+    std::vector<Hit> hits;
+};
+
+static void NotifyNodeDeleted(void* param, NotifyInfo* info);
+static void NotifyNodeCreated(void* param, NotifyInfo* info);
+static void NotifyNodePreClone(void* param, NotifyInfo* info);
+static void NotifyNodePostClone(void* param, NotifyInfo* info);
+
+class MaxUSDObjectsAPI USDStageObject
+    : public GeomObject
+    , MaxUsd::IUSDStageProvider
+    , public pxr::TfWeakBase // Required for this to listen to stage events.
+{
+
+    friend class SelectionObserver;
+
+public:
+    friend void NotifyNodeDeleted(void* param, NotifyInfo* info);
+    friend void NotifyNodeCreated(void* param, NotifyInfo* info);
+    friend void NotifyNodePreClone(void* param, NotifyInfo* info);
+    friend void NotifyNodePostClone(void* param, NotifyInfo* info);
+
+    /**
+     * \brief PBAccessor to evaluate some paramblock parameters at request time.
+     */
+    class USDPBAccessor : public PBAccessor
+    {
+        void
+        Get(PB2Value&       v,
+            ReferenceMaker* owner,
+            ParamID         id,
+            int             tabIndex,
+            TimeValue       t,
+            Interval&       valid) override;
+        void
+        PreSet(PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t) override;
+    };
+
+    /**
+     * \brief The USDStageObject's constructor.
+     */
+    USDStageObject();
+
+    /**
+     * \brief The USDStageObject's destructor.
+     */
+    ~USDStageObject() override;
+
+    /**
+     * \brief Creates the mouse create callback. Telling Max what do when a USDStageObject is created via
+     * a mouse click in the viewport.
+     * \return
+     */
+    CreateMouseCallBack* GetCreateMouseCallBack() override;
+
+    /**
+     * \brief Evaluates the object's state.
+     * \param t Time at which to evaluate the object.
+     * \return The object's state.
+     */
+    ObjectState Eval(TimeValue t) override;
+
+    /**
+     * \brief Initializes a node name for a USDStageObject. This may not be the final name used,
+     * as Max may append numbered suffixes.
+     * \param name The base name.
+     */
+    void InitNodeName(MSTR& name) override;
+
+    /**
+     * \brief Returns the object name (used in the modifier stack).
+     * \param localized Whether or not to get the localized name.
+     * \return The object name.
+     */
+    const MCHAR* GetObjectName(bool localized) const override;
+
+    /*
+     * From Object. Handling of the object's paramblock.
+     */
+    void             SetReference(int i, RefTargetHandle rtarg) override;
+    int              NumRefs() override;
+    ReferenceTarget* GetReference(int i) override;
+    int              NumParamBlocks() override;
+    IParamBlock2*    GetParamBlock(int i) override;
+    IParamBlock2*    GetParamBlockByID(BlockID id) override;
+    int              NumSubs() override;
+    Animatable*      SubAnim(int i) override;
+    TSTR             SubAnimName(int i, bool localized) override;
+    int              SubNumToRefNum(int subNum) override;
+    void             BeginEditParams(IObjParam* ip, ULONG flags, Animatable* prev) override;
+    void             EndEditParams(IObjParam* ip, ULONG flags, Animatable* next) override;
+    RefResult        NotifyRefChanged(
+               const Interval& changeInt,
+               RefTargetHandle hTarget,
+               PartID&         partID,
+               RefMessage      message,
+               BOOL            propagate) override;
+
+    /*
+     * From Object. Handling of the object's sub-object modes.
+     */
+    int          NumSubObjTypes() override;
+    ISubObjType* GetSubObjType(int i) override;
+    void         ActivateSubobjSel(int level, XFormModes& modes) override;
+    void SelectSubComponent(HitRecord* hitRec, BOOL selected, BOOL all, BOOL invert) override;
+    void ClearSelection(int level) override;
+    void GetSubObjectCenters(SubObjAxisCallback* cb, TimeValue t, INode* node, ModContext* /*mc*/)
+        override;
+    void
+    GetSubObjectTMs(SubObjAxisCallback* cb, TimeValue t, INode* node, ModContext* /*mc*/) override;
+    void
+    Move(TimeValue t, Matrix3& partm, Matrix3& tmAxis, Point3& val, BOOL /*localOrigin = FALSE*/)
+        override;
+    void
+    Rotate(TimeValue t, Matrix3& partm, Matrix3& tmAxis, Quat& val, BOOL /*localOrigin = FALSE*/)
+        override;
+    void
+    Scale(TimeValue t, Matrix3& partm, Matrix3& tmAxis, Point3& val, BOOL /*localOrigin = FALSE*/)
+        override;
+    void TransformStart(TimeValue t) override;
+    void TransformFinish(TimeValue t) override;
+
+    /**
+     * \brief Returns the world bounding box of this USD stage.
+     * \param t The time at which to get the bounding box.
+     * \param inode The node carrying the USDStageObject.
+     * \param vp The viewport properties.
+     * \param box The bounding box to be filled with the world bounding box.
+     */
+    void GetWorldBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box) override;
+
+    /**
+     * \brief Returns the local bounding box of this USD stage. This corresponds to the stage's extents
+     * transformed in max's space.
+     * \param t The time at which to get the bounding box.
+     * \param inode The node carrying the USDStageObject.
+     * \param vp The viewport properties.
+     * \param box The bounding box to be filled with the world bounding box.
+     */
+    void GetLocalBoundBox(TimeValue t, INode* inode, ViewExp* vp, Box3& box) override;
+
+    /**
+     * \brief Returns the deform bounding box of this USD stage. This corresponds to the stage's extents
+     * transformed in max's space.
+     * \param t The time at which to get the bounding box.
+     * \param box The box to be filled with the world deform bounding box.
+     * \param tm The transform matrix.
+     * \param useSel Whether or not to use the selection.
+     */
+    void GetDeformBBox(TimeValue t, Box3& box, Matrix3* tm, BOOL useSel) override;
+
+    /**
+     * \brief Returns the USDStageObject's FPInterfaceDesc.
+     * \return The FPInterfaceDesc.
+     */
+    FPInterfaceDesc* GetDesc() override;
+
+    /**
+     * \brief Returns the USDStageObject's class ID.
+     * \return The class id.
+     */
+    Class_ID ClassID() override;
+
+    /**
+     * \brief Retrieves the name of the plugin class
+     */
+    void GetClassName(MSTR& s, bool localized = true) const override;
+
+    /**
+     * \brief Whether or not the object is renderable.
+     */
+    int IsRenderable() override;
+
+    /**
+     * \brief Gets an interface over the object.
+     * \param id The id of the requested interface.
+     * \return The interface.
+     */
+    BaseInterface* GetInterface(Interface_ID id) override;
+
+    /**
+     * \brief Returns the USD stage held by this Max object.
+     * \return The USD stage.
+     */
+    pxr::UsdStageWeakPtr GetUSDStage() const override;
+
+    /**
+     * \brief Clear the previous stage if needed, then load a new stage according to the layer path and mask values.
+     * \param fromStage Optional. Load from an existing USD stage instead.
+     * \param loadPayloads Whether to load payloads.
+     * \return The USD stage.
+     */
+    pxr::UsdStageWeakPtr
+    LoadUSDStage(const pxr::UsdStageRefPtr& fromStage = nullptr, bool loadPayloads = true);
+
+    /**
+     * \brief Creates and updates the render items necessary to display the USD stage's content in the Max
+     * viewports. This will be called whenever the object is flagged as modified and a redraw is
+     * performed. In some scenarios we trigger this ourselves, for example when the stage being
+     * referenced has changed, in some other scenarios, max itself will trigger it as needed, for
+     * example if the time frame changes, and the object is no longer valid.
+     * \param updateDisplayContext The display context. Not used currently.
+     * \param nodeContext The node context, giving access to the INode's RenderNode.
+     * \param viewContext The view context, carries the view info for each viewport.
+     * \param targetRenderItemContainer Render item array to be filled up.
+     * \return True if render items were updated, false otherwise.
+     */
+    bool UpdatePerViewItems(
+        const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+        MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+        MaxSDK::Graphics::UpdateViewContext&          viewContext,
+        MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer) override;
+
+    /**
+     * \brief Prepare display data for all nodes, thus avoid duplicate display data generation for each node or each view.
+     * \param prepareDisplayContext The display context.
+     * \return True if prepare successfully, false otherwise.
+     */
+    bool
+    PrepareDisplay(const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext) override;
+
+    /**
+     * \brief Returns the stage's cache id.
+     * \return The stage cache id, as an integer.
+     */
+    int GetStageCacheId();
+
+    /**
+     * \brief Returns the object display requirement. In our case, we specify that render
+     * items must be updated "per-view". Needed so we can frustum cull items per viewport.
+     * \return Object display requirements.
+     */
+    unsigned long GetObjectDisplayRequirement() const override;
+
+    /**
+     * \brief Queries the object's validity interval at a certain time.
+     * \param time Time for which to fetch the object validity.
+     * \return The object validity interval.
+     */
+    Interval ObjectValidity(TimeValue time) override;
+
+    /**
+     * \brief Performs hit testing against the held USD stage.
+     * \param t Time at which to do the hit test.
+     * \param iNode The node holding the Usd stage object
+     * \param p Click position.
+     * \param vpt The viewport.
+     * \return True if a USD primitive was hit, false otherwise.
+     */
+    int
+    HitTest(TimeValue t, INode* iNode, int type, int crossing, int flags, IPoint2* p, ViewExp* vpt)
+        override;
+
+    /**
+     * \brief Performs hit testing against the held USD stage. This version is used in sub-object mode.
+     * We simply forward the arguments to the method just above.
+     * \param t Time at which to do the hit test.
+     * \param iNode The node holding the Usd stage object
+     * \param p Click position.
+     * \param vpt The viewport.
+     * \param mc Mode context, not used.
+     * \return True if a USD primitive was hit, false otherwise.
+     */
+    int HitTest(
+        TimeValue   t,
+        INode*      iNode,
+        int         type,
+        int         crossing,
+        int         flags,
+        IPoint2*    p,
+        ViewExp*    vpt,
+        ModContext* mc) override;
+
+    /**
+     * @param viewport The viewport in which the picking happens.
+     * @param node The node referencing the USD Stage object.
+     * @param hitRegion Hit region, describe the area being picked.
+     * @param drawMode Draw mode for picking (geometry, wireframe, points...)
+     * @param pickTarget What is being picked (prims, edges, points, etc...)
+     * @param time The time to pick the USD stage at.
+     * @param excludedPaths Prims that should be ignored when picking.
+     * @return Information on hit prims
+     */
+    std::vector<USDPickingRenderer::HitInfo> PickStage(
+        ViewExp*                  viewport,
+        INode*                    node,
+        const HitRegion&          hitRegion,
+        pxr::UsdImagingGLDrawMode drawMode,
+        const pxr::TfToken&       pickTarget,
+        TimeValue                 time,
+        const pxr::SdfPathVector& excludedPaths);
+
+    /**
+     * \brief Implements the clone operation for a Usd Stage.
+     * \param remap For remapping references.
+     * \return The cloned Stage.
+     */
+    RefTargetHandle Clone(RemapDir& remap) override;
+
+    /**
+     * \brief Returns statistics on the geometry held by the USD Stage object.
+     * \param t The time at which to get the polygon count.
+     * \param numFaces The total number of faces in the USD Stage.
+     * \param numVerts The total number of vertices in the USD Stage.
+     * \return Whether PolyCount() is supported by the USD Stage object. Currently, we only
+     * support it for the Current time value, as the stats are pulled from what is currently
+     * being rendered.
+     */
+    BOOL PolygonCount(TimeValue t, int& numFaces, int& numVerts) override;
+
+    /**
+     * \brief Returns a mesh that can be used for rendering, containing the entire USD stage.
+     * Ideally, GetMultipleRenderMesh() is used by renderers, but some do not support this API.
+     * \param t The time at which to get the render mesh.
+     * \param inode The 3dsMax node.
+     * \param view View information, not used currently.
+     * \param needDelete Whether or not to delete the mesh, always false in our case.
+     * \return The render mesh.
+     */
+    Mesh* GetRenderMesh(TimeValue t, INode* inode, View& view, BOOL& needDelete) override;
+
+    /**
+     * \brief Returns the number of render meshes. Typically there is one render mesh per USD render prim.
+     * \return The number of render meshes.
+     */
+    int NumberOfRenderMeshes() override;
+
+    /**
+     * \brief Returns the requested render mesh.
+     * \param t The time at which to get the render mesh.
+     * \param inode The 3dsMax Node
+     * \param view View information, not used currently.
+     * \param needDelete Whether or not the called should delete the mesh, always false in out case.
+     * \param meshNumber The requested mesh's number.
+     * \return The render mesh.
+     */
+    Mesh*
+    GetMultipleRenderMesh(TimeValue t, INode* inode, View& view, BOOL& needDelete, int meshNumber)
+        override;
+
+    /**
+     * \brief Returns the offset transform for the N'th render mesh.
+     * \param t The time at which to get the meshe's render offset transform,
+     * \param inode The 3dsMax node.
+     * \param view View informatin, not used currently.
+     * \param meshNumber The number of the mesh for which we are requesting the transform.
+     * \param meshTM The mesh transform, returned by reference.
+     * \param meshTMValid The validity interval for the transform.
+     */
+    void GetMultipleRenderMeshTM(
+        TimeValue t,
+        INode*    inode,
+        View&     view,
+        int       meshNumber,
+        Matrix3&  meshTM,
+        Interval& meshTMValid) override;
+
+    /**
+     * \brief Flag the object for redraw, and trigger redraw.
+     * \param completeRedraw optionally, force a complete redraw (calls GetCOREInterface()->ForceCompleteRedraw())
+     */
+    void Redraw(bool completeRedraw = false);
+
+    /**
+     * \brief Invalidate paramblock parameters that have accessors and are computed, to signal
+     * 3dsMax it should request the values again as they may have changed (likely to update UI)
+     */
+    void InvalidateParams();
+
+    /**
+     * \brief Gets the stage's bounding box at the given TimeValue. This can be called from
+     * multiple threads, and should be kept thread safe.
+     * \param rootTransform The stage's root transform (up axis and unit adjustments)
+     * \param time The 3dsMax TimeValue at which to the the bounding box.
+     * \param node Optional node parameter. If not passed, the root prim and the display settings are not updated
+     * before performing the render that gets us the boundingbox
+     * \param useSel Whether or not to use the selection.
+     * \return The Stage's bounding box.
+     */
+    Box3 GetStageBoundingBox(
+        pxr::GfMatrix4d rootTransform,
+        TimeValue       time,
+        INode*          node = nullptr,
+        bool            useSel = false);
+
+    /**
+     * \brief Callback to be executed whenever the object's wire color changes.
+     * \param newColor The new wire color.
+     */
+    void WireColorChanged(Color newColor);
+
+    /**
+     * \brief Force reloads all of the stage's layers.
+     */
+    void Reload() override;
+
+    /**
+     * \brief Clears the stage's session layer.
+     */
+    void ClearSessionLayer() override;
+
+    /**
+     * \brief Gets the transform required to align and scale the USD stage to Max's up axis and units.
+     * \return The stage's root transform.
+     */
+    pxr::GfMatrix4d GetStageRootTransform() const;
+
+    /**
+     * \brief Used to register auxiliary files, this way, the referenced USD file is properly registered as
+     * an asset, and will be considered when archiving the scene.
+     * \param nameEnum The Callback object that gets called on all Auxiliary files.
+     * \param flags Flags for the file enumeration.
+     */
+    void EnumAuxFiles(AssetEnumCallback& nameEnum, DWORD flags) override;
+
+    /**
+     * \brief Executed when the object is loaded from disk.
+     * \param iload Load interface.
+     * \return Load result.
+     */
+    IOResult Load(ILoad* iload) override;
+    /**
+     * \brief Executed when the object is saved.
+     * \param isave Save interface.
+     * \return Save Save result.
+     */
+    IOResult Save(ISave* isave) override;
+
+    /**
+     * \brief Does a full stage reset on a particular interval.
+     */
+    void FullStageReset();
+
+    /**
+     * \brief Used to set the USD Stage's root layer (file path) and mask. MXS version of the
+     * function which includes validation and Runtime exceptions being thrown.
+     * \param rootLayer The root layer (file path) of the USD stage.
+     * \param stageMask The mask to be applied on the USD stage.
+     * \param payloadsLoaded Sets if the payloads (if any) are loaded or not when opening the stage
+     */
+    void SetRootLayerMXS(const wchar_t* rootLayer, const wchar_t* stageMask, bool payloadsLoaded)
+        override;
+
+    /**
+     * \brief Used to set the USD Stage's root layer (file path) and mask.
+     * \param rootLayer The root layer (file path) of the USD stage.
+     * \param stageMask The mask to be applied on the USD stage.
+     * \param payloadsLoaded Sets if the payloads (if any) are loaded or not when opening the stage (true by default)
+     */
+    void SetRootLayer(
+        const wchar_t* rootLayer,
+        const wchar_t* stageMask,
+        bool           payloadsLoaded = true) override;
+
+    /**
+     * \brief Returns the multimaterial representing the UsdPreviewSurface materials in the stage.
+     * If the material doesn't yet exist, it will be built at this time - this can be a costly
+     * operation.
+     * \param sync If True, the multimaterial is synchronized with the usd source materials, (potentially
+     * a destructive operation - for example if a user sloted in new materials to override usd
+     * materials), otherwise it is returned as-is currently.
+     * \return The multimaterial carrying UsdPreviewSurface materials.
+     */
+    Mtl* GetUsdPreviewSurfaceMaterials(bool sync) override;
+
+    /**
+     * \brief Set the Stage Icon to the current scale.
+     */
+    void UpdateViewportStageIcon();
+
+    /**
+     * \brief Registers a ProgressReporter with the UsdStageObject, lengthy operations
+     * will then use this reporter to report progress, typically it is hooked up
+     * to some UI.
+     * \param reporter The reporter to register.
+     */
+    void RegisterProgressReporter(const MaxUsd::ProgressReporter& reporter);
+
+    /**
+     * \brief Unregisters the currently registered progress reporter, see RegisterProgressReporter().
+     */
+    void UnregisterProgressReporter();
+
+    /**
+     * \brief Clears the bounding box cache.
+     */
+    void ClearBoundingBoxCache();
+
+    /**
+     * \brief Reset primvar mappings to defaults.
+     */
+    void SetPrimvarChannelMappingDefaults() override;
+
+    /**
+     * \brief Sets a primvar to 3dsMax channel mapping.
+     * \param primvarName The primvar to map.
+     * \param channel The target 3dsmax map channel.
+     */
+    void SetPrimvarChannelMapping(const wchar_t* primvarName, Value* channel) override;
+
+    /**
+     * \brief Gets the target 3dsMax channel for a given primvar.
+     * \param primvarName The primvar to get the channel for.
+     * \return The channel.
+     */
+    Value* GetPrimvarChannel(const wchar_t* primvarName) override;
+
+    /**
+     * \brief Gets a tab of all currently mapped primvars.
+     * \return All mapped primvars.
+     */
+    Tab<const wchar_t*> GetMappedPrimvars() const override;
+
+    /**
+     * \brief Checks if a primvar is currently mapped to a channel.
+     * \param primvarName The name of the primvar to check.
+     * \return True if the primvar is mapped, false otherwise.
+     */
+    bool IsMappedPrimvar(const wchar_t* primvarName) override;
+
+    /**
+     * \brief Clears all primvar mappings.
+     */
+    void ClearMappedPrimvars() override;
+
+    /**
+     * \brief Opens the stage in the USD explorer.
+     */
+    void OpenInUsdExplorer() override;
+
+    /**
+     * \brief Closes the stage in the USD explorer.
+     */
+    void CloseInUsdExplorer() override;
+
+    /**
+     * \brief Returns the GUID associated with the USD Stage object.
+     * \return The GUID.
+     */
+    const std::string& GetGuid() const;
+
+    /**
+     * \brief Callback method to save the load rules so that switching the stage settings will
+     * be able to preserve the load rules. Called when loading/unloading a payload.
+     * (see UsdUfe::DCCFunctions::saveStageLoadRulesFn in UfeUtils)
+     */
+    void SaveStageLoadRules();
+
+    /**
+     * \brief Returns a pointer to the hydra engine used by the stage object.
+     * \return The hydra engine.
+     */
+    HdMaxEngine* GetHydraEngine() const;
+
+    /** Adds or remove the attribute rollups for the current prim selection of
+     * the USD stage object.
+     */
+    void AdjustAttributeRollupsForSelection();
+
+    /**
+     * \brief Requests that the selection display in the viewport be updated on the next draw.
+     * See UpdatePrimSelectionDisplay().
+     */
+    void DirtySelectionDisplay();
+
+    /**
+     * \brief Updates the prim selection display in the viewport if it is dirty. If we are at the
+     * object level, prim selection is not displayed. The function will basically converts the
+     * current global UFE selection to the hydra selection that the render delegate uses.
+     */
+    void UpdatePrimSelectionDisplay();
+
+    /**
+     * Simple struct describing USD objects that can be transformed in the USDStageObject's
+     * prim subobject mode. Xformable prims and point instances can be transformed.
+     */
+    struct Transformable
+    {
+        // A Xformable prim
+        pxr::UsdPrim prim;
+        /// Point instance indices, empty is "prim" is not a UsdGeomPointInstancer
+        std::vector<int> instanceIndices;
+    };
+
+    /**
+     * \brief Returns Transformables from the UFE selection corresponding to the prims that need
+     * to be transformed to affect the position of all prims / point instances in the selection.
+     * If both a parent and child transformable are selected, we only need to move the parent,
+     * as the transform will be inherited.
+     * \return The root-most Transformables in the selection.
+     */
+    std::vector<Transformable> GetTransformablesFromSelection();
+
+    /**
+     * \brief Get the computed time code based on the Animation mode and related params of the param block.
+     * \param time The TimeValue you want to resolve.
+     */
+    pxr::UsdTimeCode ResolveRenderTimeCode(TimeValue time) const;
+
+    /**
+     * \brief Builds 3dsMax cameras representing the USD Cameras contained in the stage, for all INodes
+     * referencing the object.
+     */
+    void BuildCameraNodes();
+
+    /**
+     * \brief Builds 3dsMax cameras representing the USD Cameras contained in the stage.
+     * \param stageNode The node referencing the USD Stage object. We need the node, to position
+     * cameras correctly. Any camera that already exists on the 3dsMax side will be left untouched.
+     */
+    void BuildCameraNodes(INode* stageNode) const;
+
+    /**
+     * \brief Deletes all the 3dsMax cameras representing the USD Cameras contained in the stage.
+     * \param stageNode The USD Stage object node owning the cameras objects.
+     */
+    void DeleteCameraNodes(INode* stageNode) const;
+
+    /**
+     * \brief Gets the full transform of a prim in the 3dsMax scene.
+     * \param stageNode The node the stage object belongs to.
+     * \param prim The prim we want the transform for.
+     * \param time Time at which we want the transform.
+     * \param includePivot Whether to include the translate pivot of the prim, if defined, in the final transform.
+     * \return The world space position of the prim in the max scene.
+     */
+    static Matrix3 GetMaxScenePrimTransform(
+        INode*              stageNode,
+        const pxr::UsdPrim& prim,
+        const TimeValue&    time,
+        bool                includePivot);
+
+    /**
+     * Gets the full transforms of USD Point instances in the 3dsMax scene.
+     * @param stageNode The node the stage object belongs to.
+     * @param instancerPrim The UsdGeomPointInstancer prim the instances belong to.
+     * @param instanceIndices The instances we want the transforms for.
+     * @param time Time at which we want the transforms.
+     * @return The world space position of the instances in the max scene.
+     */
+    static std::vector<Matrix3> GetMaxScenePointInstancesTransforms(
+        INode*                  stageNode,
+        const pxr::UsdPrim&     instancerPrim,
+        const std::vector<int>& instanceIndices,
+        const TimeValue&        time);
+
+    /**
+     * Sets up USD draw modes as configured for the USD Stage. Calling the function will
+     * author missing draw modes / UsdGeomModelAPIs, and apply model kinds as necessary.
+     */
+    void GenerateDrawModes() override;
+
+private:
+    class NodeEventCallback : public INodeEventCallback
+    {
+    public:
+        NodeEventCallback(USDStageObject* stageObject);
+
+    private:
+        void            WireColorChanged(NodeKeyTab& nodes) override;
+        USDStageObject* object;
+    };
+
+    /**
+     * \brief OnStageChange event handler.
+     * \param notice The stage objects changed notice - contains a reference to the changed stage.
+     */
+    void OnStageChange(pxr::UsdNotice::ObjectsChanged const& notice);
+
+    /**
+     * \brief Gets whether a not the given display purpose should be displayed.
+     * \param purpose The purpose token.
+     * \return True if the purpose should be displayed, false otherwise.
+     */
+    bool GetDisplayPurpose(pxr::TfToken purpose) const;
+
+    /**
+     * \brief Checks if the render cache is valid at the given time with the given
+     * render tags. If not, the cache is cleared.
+     * \param time The time to check.
+     * \param renderTags The render tags.
+     */
+    void CheckRenderCache(TimeValue time, const pxr::TfTokenVector& renderTags);
+
+    /**
+     * \brief Clears all caches held by the UsdStageObject.
+     */
+    void ClearAllCaches();
+
+    /**
+     * \brief Clears the render data cache.
+     */
+    void ClearRenderCache();
+
+    /**
+     * \brief Returns the currently set render tags, as a token vector.
+     * \return The render tags.
+     */
+    pxr::TfTokenVector GetRenderTags() const;
+
+    /**
+     * \brief Setup the hydra render delegate display settings, for the given node
+     * and the PB param setup on the object.
+     * \param node The node, to get the used wire color.
+     */
+    void SetupRenderDelegateDisplaySettings(INode* node) const;
+
+    /**
+     * \brief Executed whenever the primvar to channel configuration of the USD Stage changes.
+     */
+    void OnPrimvarMappingChanged();
+
+    /**
+     * \brief Transforms the prim currently being transformed by the prim subobject move, rotate or scale modes.
+     * The most local transform op on the prim is what gets written to.
+     * \param parentTm The parent transform, typically the node's transform.
+     * \param axisTm The axis of the transform, will get different values depending on the current coord system
+     * (world, local, etc.)
+     * \param transform The transform to apply.
+     */
+    void TransformInteractive(
+        const Matrix3& parentTm,
+        const Matrix3& axisTm,
+        const Matrix3& transform) const;
+
+    /** Cleans up the prim attribute rollups for the current prim selection and
+     * remembers their individual open/close states. */
+    void CleanupPrimAttributeWidgets();
+
+    /// Paramblock holding the Stage object's data.
+    IParamBlock2* pb;
+    /// The stage. Should not be used directly, instead use GetUSDStage(), which will load the stage
+    /// as needed.
+    pxr::UsdStageRefPtr stage;
+    /// The hydra engine to render USD geometry in the viewport.
+    std::unique_ptr<HdMaxEngine> hydraEngine;
+    /// Offscreen renderer used for the picking of USD primitives.
+    std::unique_ptr<USDPickingRenderer> pickingRenderer;
+    /// Handle for the onStageChange notice so that we can revoke it upon destruction.
+    pxr::TfNotice::Key onStageChangeNotice;
+    /// Id of the stage in the stage cache.
+    pxr::UsdStageCache::Id stageCacheId;
+    /// A unique identifier for the USD Stage object. Used to map USD stages <-> 3dsMax objects.
+    std::string guid;
+    /// Flag to keep track of when the displayed purposes have changed. We
+    /// need this to trigger a workaround with render purposes not getting flagged
+    /// dirty from Hydra.
+    bool displayPurposeUpdated = false;
+    /// Multi-material used for offline rendering of the USD stage object. Holds the
+    /// MaxUsdPreviewSurface materials converted from USD. Gets populated by HdmaxEngine::Render().
+    MaxUsd::MaterialRef usdMaterials;
+    bool                buildOfflineRenderMaterial = false;
+    /// Cached offline render data.
+    struct RenderCache
+    {
+        std::vector<std::shared_ptr<Mesh>> meshes;
+        std::vector<Matrix3>               transforms;
+        std::unique_ptr<Mesh>              fullMesh = nullptr;
+
+        // Info on the cached data, only reuse if matching these..
+        TimeValue          time = INT_MAX;
+        pxr::TfTokenVector renderTags;
+        Mtl*               material = nullptr;
+
+        /**
+         * \brief Check if the render cache is valid for the given input.
+         * \param time Render time.
+         * \param renderTags Active render tags.
+         * \return True if the cache is valid, false otherwise.
+         */
+        bool IsValid(const TimeValue time, const pxr::TfTokenVector& renderTags) const
+        {
+            return this->time == time && this->renderTags == renderTags;
+        }
+
+        void SetValidity(TimeValue time, const pxr::TfTokenVector& renderTags, Mtl* material)
+        {
+            this->time = time;
+            this->renderTags = renderTags;
+            this->material = material;
+        }
+    };
+
+    RenderCache renderCache;
+
+    // Simple struct to hold cached hit testing information.
+    struct HitTestCacheData
+    {
+        /// The cursor position on screen in pixels.
+        IPoint2 cursorPos;
+        // Hit info, what prim was hit.
+        USDPickingRenderer::HitInfo hit;
+    };
+
+    // Hit testing cache. Maintain this per-node, multiple nodes can point to the same
+    // USD Stage object.
+    std::unordered_map<INode*, HitTestCacheData> hitTestingCache;
+
+    /// Object statistics.
+    size_t numFaces = 0;
+    size_t numVerts = 0;
+
+    // Viewport Stage icon
+    SplineShape shapeIcon;
+
+    // Bounding box cache. The boundingBox cache must be carefully maintained,
+    // it should be cleared whenever anything might change the bounding box at a
+    // specific time (icon toggle, usd stage changed notice, animation mode changes,
+    // timeline changes, etc.)
+    std::unordered_map<TimeValue, Box3> boundingBoxCache;
+
+    /// Node even callback, we use it to react to wire color changes.
+    ISceneEventManager::CallbackKey nodeEventCallbackKey;
+    NodeEventCallback               nodeEventCallback { this };
+    /// Progress reporter for length operations, typically hooked up to some UI.
+    MaxUsd::ProgressReporter progressReporter;
+    /// A reference to the session layer that was loaded from the max scene.
+    pxr::SdfLayerRefPtr sessionLayerFromMaxScene;
+    /// The payload rules applied by the USD Explorer
+    std::string savedPayloadRules;
+
+    /// True if a usd object is currently in create mode, in the command panel.
+    bool isInCreateMode = false;
+    /// The current sub object level for the object. We need to know if this specific object
+    /// is in subobject mode, the global state does not tell us.
+    int subObjectLevel = 0;
+    /// True if currently in a node clone operation.
+    bool inCloneOperation = false;
+
+    /// The interface to interact with the command panel - when in edit mode...
+    IObjParam* ip = nullptr;
+    /// The rollups showing the attributes of the current selected prim(s).
+    std::vector<QPointer<QWidget>> primAttributeWidgets;
+
+    static bool                    primAttributeRollupOpenStatesLoaded;
+    static std::map<QString, bool> primAttributeRollupStates;
+    static std::map<QString, bool> loadedPrimAttributeRollupStates;
+    static const QString           rollupCategory;
+
+    /// Sub-object 3dsmax modes, used to select and transform prims.
+    static SelectModBoxCMode*  selectMode;
+    static MoveModBoxCMode*    moveMode;
+    static RotateModBoxCMode*  rotateMode;
+    static UScaleModBoxCMode*  uScaleMode;
+    static NUScaleModBoxCMode* nuScaleMode;
+    static SquashModBoxCMode*  squashMode;
+
+    // When transforming in sub-object mode, we may need to affect multiple prims, in the
+    // case of multiselection, there will be one entry for each USD transformable entity needing
+    // edit in subObjectManips.
+    std::vector<std::unique_ptr<SubObjectManip>> subObjectManips;
+
+    /// UFE observer to react to changes in the selection.
+    std::shared_ptr<SelectionObserver> selectionObserver;
+
+    /// Flag to indicate that the selection display must be udpated upon the next draw.
+    bool isSelectionDisplayDirty = false;
+};
diff --git a/src/MaxUsdObjects/Objects/USDStageObjectIcon.h b/src/MaxUsdObjects/Objects/USDStageObjectIcon.h
new file mode 100644
index 0000000..301268a
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDStageObjectIcon.h
@@ -0,0 +1,709 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <splshape.h>
+
+namespace UsdStageObjectIcon {
+// This code was generated using the following script :  build-scripts/utility/outputSplineToCpp.ms
+// Starting from "//Spline 1" all of the code has been generated by the script.
+inline void GetIcon(BezierShape& baseShape)
+{
+    baseShape.Init();
+
+    Point3     p, in, out;
+    SplineKnot k;
+    k.SetKtype(KTYPE_BEZIER);
+    k.SetLtype(CURVE_CURVE);
+    Spline3D* spline = nullptr;
+
+    // Spline 1
+    spline = baseShape.NewSpline();
+    p = Point3(-4.02019, 4.16956, 0.0);
+    in = Point3(-4.017, 2.72169, 0.0);
+    out = Point3(-2.70575, 3.71988, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.076859, 2.82053, 0.0);
+    in = Point3(-1.3913, 3.27021, 0.0);
+    out = Point3(-0.0768266, 1.37204, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.0767617, -1.52494, 0.0);
+    in = Point3(-0.0767941, -0.0764505, 0.0);
+    out = Point3(-1.38805, -1.07465, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.01061, -0.174059, 0.0);
+    in = Point3(-2.69933, -0.624353, 0.0);
+    out = Point3(-4.01381, 1.27381, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 2
+    spline = baseShape.NewSpline();
+    p = Point3(-4.5969, 5.0716, 0.0);
+    in = Point3(-4.58972, 3.16275, 0.0);
+    out = Point3(-2.88604, 4.47984, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.535671, 3.29632, 0.0);
+    in = Point3(-1.17518, 3.88808, 0.0);
+    out = Point3(0.54523, 1.38926, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.564348, -2.42488, 0.0);
+    in = Point3(0.554789, -0.517812, 0.0);
+    out = Point3(-1.14889, -1.8349, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.57537, -0.654939, 0.0);
+    in = Point3(-2.86213, -1.24492, 0.0);
+    out = Point3(-4.58254, 1.25391, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 3
+    spline = baseShape.NewSpline();
+    p = Point3(-6.09115, 7.33213, 0.0);
+    in = Point3(-6.09115, 4.27102, 0.0);
+    out = Point3(-3.35807, 6.39369, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.10808, 4.51682, 0.0);
+    in = Point3(-0.624994, 5.45525, 0.0);
+    out = Point3(2.10411, 1.4622, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.09617, -4.64703, 0.0);
+    in = Point3(2.10014, -1.59242, 0.0);
+    out = Point3(-0.632939, -3.71509, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-6.09115, -1.8512, 0.0);
+    in = Point3(-3.36204, -2.78315, 0.0);
+    out = Point3(-6.09115, 1.20991, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 4
+    spline = baseShape.NewSpline();
+    p = Point3(-2.53997, 8.12819, 0.0);
+    in = Point3(-0.365607, 7.3781, 0.0);
+    out = Point3(-2.54024, 7.65096, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-2.54078, 6.69652, 0.0);
+    in = Point3(-2.54051, 7.17374, 0.0);
+    out = Point3(-0.810364, 6.10239, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.65047, 4.91412, 0.0);
+    in = Point3(0.920055, 5.50826, 0.0);
+    out = Point3(2.6559, 2.95463, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.66676, -0.964348, 0.0);
+    in = Point3(2.66133, 0.995142, 0.0);
+    out = Point3(3.10301, -1.12258, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(3.97551, -1.43903, 0.0);
+    in = Point3(3.53926, -1.28081, 0.0);
+    out = Point3(3.97804, 0.999954, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(3.98311, 5.87793, 0.0);
+    in = Point3(3.98058, 3.43894, 0.0);
+    out = Point3(1.80875, 6.62802, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 5
+    spline = baseShape.NewSpline();
+    p = Point3(1.05799, 8.86275, 0.0);
+    in = Point3(2.62324, 8.32106, 0.0);
+    out = Point3(1.06319, 8.39057, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.0736, 7.44622, 0.0);
+    in = Point3(1.0684, 7.91839, 0.0);
+    out = Point3(2.21025, 7.04199, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.48356, 6.23355, 0.0);
+    in = Point3(3.34691, 6.63777, 0.0);
+    out = Point3(4.48761, 4.87805, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.49571, 2.16705, 0.0);
+    in = Point3(4.49166, 3.52255, 0.0);
+    out = Point3(4.91753, 2.03759, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.76117, 1.77868, 0.0);
+    in = Point3(5.33935, 1.90813, 0.0);
+    out = Point3(5.75869, 3.59835, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.75374, 7.23769, 0.0);
+    in = Point3(5.75622, 5.41802, 0.0);
+    out = Point3(4.18849, 7.77938, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 6
+    spline = baseShape.NewSpline();
+    p = Point3(-2.76959, -5.17137, 0.0);
+    in = Point3(-2.76959, -6.27997, 0.0);
+    out = Point3(-2.39831, -5.17137, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-1.65575, -5.17137, 0.0);
+    in = Point3(-2.02703, -5.17137, 0.0);
+    out = Point3(-1.65575, -6.25258, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-1.65575, -7.33379, 0.0);
+    in = Point3(-1.65575, -7.33379, 0.0);
+    out = Point3(-1.65575, -7.54821, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-1.75599, -7.94119, 0.0);
+    in = Point3(-1.68916, -7.75068, 0.0);
+    out = Point3(-1.82282, -8.1317, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-2.07032, -8.44093, 0.0);
+    in = Point3(-1.92759, -8.29828, 0.0);
+    out = Point3(-2.21304, -8.58358, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-2.51947, -8.74148, 0.0);
+    in = Point3(-2.36276, -8.68377, 0.0);
+    out = Point3(-2.73724, -8.82233, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-3.30398, -8.86275, 0.0);
+    in = Point3(-2.99874, -8.86275, 0.0);
+    out = Point3(-3.48054, -8.86275, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-3.88187, -8.82565, 0.0);
+    in = Point3(-3.67317, -8.85038, 0.0);
+    out = Point3(-4.09057, -8.80093, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.40532, -8.67845, 0.0);
+    in = Point3(-4.26505, -8.75186, 0.0);
+    out = Point3(-4.54559, -8.60504, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.79021, -8.36546, 0.0);
+    in = Point3(-4.67389, -8.50071, 0.0);
+    out = Point3(-4.90653, -8.23021, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-5.02896, -7.94738, 0.0);
+    in = Point3(-4.98612, -8.09085, 0.0);
+    out = Point3(-5.09827, -7.71644, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-5.13293, -7.33379, 0.0);
+    in = Point3(-5.13293, -7.51191, 0.0);
+    out = Point3(-5.13293, -7.33379, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-5.13293, -5.17137, 0.0);
+    in = Point3(-5.13293, -6.25258, 0.0);
+    out = Point3(-4.76165, -5.17137, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.01909, -5.17137, 0.0);
+    in = Point3(-4.39037, -5.17137, 0.0);
+    out = Point3(-4.01909, -6.27997, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-4.01909, -7.38856, 0.0);
+    in = Point3(-4.01909, -7.38856, 0.0);
+    out = Point3(-4.01909, -7.5867, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-3.85325, -7.853, 0.0);
+    in = Point3(-3.96381, -7.74151, 0.0);
+    out = Point3(-3.7427, -7.96449, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-3.39311, -8.02023, 0.0);
+    in = Point3(-3.58932, -8.02023, 0.0);
+    out = Point3(-3.19855, -8.02023, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-2.93543, -7.85551, 0.0);
+    in = Point3(-3.04599, -7.96532, 0.0);
+    out = Point3(-2.82487, -7.74569, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-2.76959, -7.38856, 0.0);
+    in = Point3(-2.76959, -7.59004, 0.0);
+    out = Point3(-2.76959, -7.38856, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 7
+    spline = baseShape.NewSpline();
+    p = Point3(-1.10597, -7.60131, 0.0);
+    in = Point3(-1.07466, -7.96739, 0.0);
+    out = Point3(-1.10597, -7.60131, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.0421114, -7.53471, 0.0);
+    in = Point3(-0.0421114, -7.53471, 0.0);
+    out = Point3(-0.0190549, -7.70733, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.0989037, -7.92931, 0.0);
+    in = Point3(0.0279498, -7.83887, 0.0);
+    out = Point3(0.214334, -8.0756, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.593572, -8.14875, 0.0);
+    in = Point3(0.379223, -8.14875, 0.0);
+    out = Point3(0.753478, -8.14875, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.96329, -8.03618, 0.0);
+    in = Point3(0.876717, -8.11123, 0.0);
+    out = Point3(1.04986, -7.96114, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.09315, -7.77513, 0.0);
+    in = Point3(1.09315, -7.87412, 0.0);
+    out = Point3(1.09315, -7.68104, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.968979, -7.52266, 0.0);
+    in = Point3(1.05176, -7.59689, 0.0);
+    out = Point3(0.8862, -7.44843, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.395325, -7.31237, 0.0);
+    in = Point3(0.694982, -7.37834, 0.0);
+    out = Point3(-0.0952525, -7.20177, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.654143, -6.87147, 0.0);
+    in = Point3(-0.445075, -7.0548, 0.0);
+    out = Point3(-0.864922, -6.68806, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.970312, -6.17019, 0.0);
+    in = Point3(-0.970312, -6.4543, 0.0);
+    out = Point3(-0.970312, -5.98351, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.808713, -5.6411, 0.0);
+    in = Point3(-0.916445, -5.80715, 0.0);
+    out = Point3(-0.700981, -5.47506, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.322635, -5.24957, 0.0);
+    in = Point3(-0.538955, -5.34455, 0.0);
+    out = Point3(-0.106316, -5.1546, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.566797, -5.10711, 0.0);
+    in = Point3(0.190162, -5.10711, 0.0);
+    out = Point3(1.02904, -5.10711, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.62407, -5.3656, 0.0);
+    in = Point3(1.38146, -5.19327, 0.0);
+    out = Point3(1.86669, -5.53793, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.05705, -6.18815, 0.0);
+    in = Point3(2.01101, -5.81211, 0.0);
+    out = Point3(2.05705, -6.18815, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.00033, -6.24951, 0.0);
+    in = Point3(1.00033, -6.24951, 0.0);
+    out = Point3(0.972513, -6.08745, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.824785, -5.89591, 0.0);
+    in = Point3(0.913998, -5.96958, 0.0);
+    out = Point3(0.735572, -5.82224, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.455346, -5.78541, 0.0);
+    in = Point3(0.612426, -5.78541, 0.0);
+    out = Point3(0.326008, -5.78541, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.163164, -5.8683, 0.0);
+    in = Point3(0.228613, -5.81304, 0.0);
+    out = Point3(0.0977135, -5.92356, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.0649886, -6.07001, 0.0);
+    in = Point3(0.0649886, -5.9908, 0.0);
+    out = Point3(0.0649886, -6.12779, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.146206, -6.22597, 0.0);
+    in = Point3(0.092061, -6.17978, 0.0);
+    out = Point3(0.198715, -6.27379, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.521279, -6.35951, 0.0);
+    in = Point3(0.32374, -6.31831, 0.0);
+    out = Point3(1.01029, -6.46512, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.57214, -6.68009, 0.0);
+    in = Point3(1.36058, -6.57198, 0.0);
+    out = Point3(1.7837, -6.78819, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.03396, -7.08243, 0.0);
+    in = Point3(1.93764, -6.92231, 0.0);
+    out = Point3(2.13027, -7.24256, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.17843, -7.61972, 0.0);
+    in = Point3(2.17843, -7.42166, 0.0);
+    out = Point3(2.17843, -7.85251, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.98582, -8.26355, 0.0);
+    in = Point3(2.11422, -8.06712, 0.0);
+    out = Point3(1.85741, -8.45997, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(1.44747, -8.71047, 0.0);
+    in = Point3(1.67796, -8.60894, 0.0);
+    out = Point3(1.21698, -8.81199, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(0.575722, -8.86275, 0.0);
+    in = Point3(0.9264, -8.86275, 0.0);
+    out = Point3(-0.0399547, -8.86275, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(-0.703398, -8.50659, 0.0);
+    in = Point3(-0.466328, -8.74403, 0.0);
+    out = Point3(-0.940468, -8.26914, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 8
+    spline = baseShape.NewSpline();
+    p = Point3(2.75677, -5.17137, 0.0);
+    in = Point3(2.75677, -6.38041, 0.0);
+    out = Point3(3.58852, -5.17137, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.42028, -5.17137, 0.0);
+    in = Point3(4.42028, -5.17137, 0.0);
+    out = Point3(4.7482, -5.17137, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.21494, -5.30497, 0.0);
+    in = Point3(5.01308, -5.2159, 0.0);
+    out = Point3(5.41679, -5.39403, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.71546, -5.68846, 0.0);
+    in = Point3(5.58363, -5.52186, 0.0);
+    out = Point3(5.84729, -5.85506, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(6.00218, -6.26993, 0.0);
+    in = Point3(5.94286, -6.04888, 0.0);
+    out = Point3(6.06149, -6.49097, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(6.09115, -6.97255, 0.0);
+    in = Point3(6.09115, -6.72517, 0.0);
+    out = Point3(6.09115, -7.36019, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.95889, -7.87442, 0.0);
+    in = Point3(6.04706, -7.66081, 0.0);
+    out = Point3(5.87072, -8.08802, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.59185, -8.41131, 0.0);
+    in = Point3(5.74837, -8.26699, 0.0);
+    out = Point3(5.43533, -8.55564, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(5.08764, -8.69953, 0.0);
+    in = Point3(5.26726, -8.65171, 0.0);
+    out = Point3(4.84213, -8.7655, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.42028, -8.79849, 0.0);
+    in = Point3(4.61968, -8.79849, 0.0);
+    out = Point3(4.42028, -8.79849, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(2.75677, -8.79849, 0.0);
+    in = Point3(3.58852, -8.79849, 0.0);
+    out = Point3(2.75677, -7.58945, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    // Spline 9
+    spline = baseShape.NewSpline();
+    p = Point3(3.87775, -5.99247, 0.0);
+    in = Point3(4.01681, -5.99247, 0.0);
+    out = Point3(3.87775, -6.65411, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(3.87775, -7.97739, 0.0);
+    in = Point3(3.87775, -7.31575, 0.0);
+    out = Point3(4.01436, -7.97739, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.15097, -7.97739, 0.0);
+    in = Point3(4.15097, -7.97739, 0.0);
+    out = Point3(4.38391, -7.97739, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.64803, -7.89935, 0.0);
+    in = Point3(4.5496, -7.95138, 0.0);
+    out = Point3(4.74647, -7.84733, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.87936, -7.62675, 0.0);
+    in = Point3(4.82358, -7.75646, 0.0);
+    out = Point3(4.93514, -7.49704, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.96303, -6.99609, 0.0);
+    in = Point3(4.96303, -7.28682, 0.0);
+    out = Point3(4.96303, -6.61119, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.77599, -6.20561, 0.0);
+    in = Point3(4.90068, -6.3477, 0.0);
+    out = Point3(4.6513, -6.06352, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    p = Point3(4.15587, -5.99247, 0.0);
+    in = Point3(4.4446, -5.99247, 0.0);
+    out = Point3(4.15587, -5.99247, 0.0);
+    k.SetKnot(p);
+    k.SetInVec(in);
+    k.SetOutVec(out);
+    spline->AddKnot(k);
+    spline->SetClosed();
+
+    baseShape.UpdateSels();
+}
+
+} // namespace UsdStageObjectIcon
diff --git a/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.cpp b/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.cpp
new file mode 100644
index 0000000..8b139dc
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.cpp
@@ -0,0 +1,285 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDStageObjectclassDesc.h"
+
+#include "USDStageObject.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/USDExplorer.h>
+#include <MaxUsdObjects/Views/UsdStageNodeAnimationRollup.h>
+#include <MaxUsdObjects/Views/UsdStageNodeParametersRollup.h>
+#include <MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.h>
+#include <MaxUsdObjects/Views/UsdStageRenderSettingsRollup.h>
+#include <MaxUsdObjects/Views/UsdStageViewportDisplayRollup.h>
+#include <MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.h>
+#include <MaxUsdObjects/Views/UsdStageViewportSelectionRollup.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+#include <Qt/QmaxMainWindow.h>
+#include <maxscript/foundation/arrays.h>
+#include <maxscript/foundation/strings.h>
+
+#include <GetCoreInterface.h>
+#include <QtWidgets/QFileDialog>
+#include <ifnpub.h>
+
+int USDStageObjectclassDesc::IsPublic() { return true; }
+
+void* USDStageObjectclassDesc::Create(BOOL loading) { return new USDStageObject(); }
+
+const MCHAR* USDStageObjectclassDesc::ClassName()
+{
+    return GetString(IDS_USDSTAGEOBJECT_CLASS_NAME);
+}
+
+Class_ID USDStageObjectclassDesc::ClassID() { return USDSTAGEOBJECT_CLASS_ID; }
+
+const MCHAR* USDStageObjectclassDesc::InternalName() { return _M("USDStageObject"); }
+
+const MCHAR* USDStageObjectclassDesc::NonLocalizedClassName() { return _T("USDStageObject"); }
+
+SClass_ID USDStageObjectclassDesc::SuperClassID() { return GEOMOBJECT_CLASS_ID; }
+
+const MCHAR* USDStageObjectclassDesc::Category() { return GetString(IDS_USD_CATEGORY); }
+
+HINSTANCE USDStageObjectclassDesc::HInstance() { return hInstance; }
+
+MaxSDK::QMaxParamBlockWidget* USDStageObjectclassDesc::CreateQtWidget(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock,
+    const MapID     paramMapID,
+    MSTR&           rollupTitle,
+    int&            rollupFlags,
+    int&            rollupCategory)
+{
+    switch (paramMapID) {
+    case UsdStageGeneral: {
+        const auto stageSetupUi = new UsdStageNodeParametersRollup(owner, paramBlock);
+        rollupTitle = MaxSDK::GetResourceStringAsMSTR(IDS_USDSTAGEOBJECT_ROLL_OUT_PARAMETERS_TITLE);
+        return stageSetupUi;
+    }
+    case UsdStageViewportDisplay: {
+        const auto viewportDisplayUi = new UsdStageViewportDisplayRollup(owner, paramBlock);
+        rollupTitle
+            = MaxSDK::GetResourceStringAsMSTR(IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_DISPLAY_TITLE);
+        return viewportDisplayUi;
+    }
+    case UsdStageViewportPerformance: {
+        const auto viewportDisplayUi = new UsdStageViewportPerformanceRollup(owner, paramBlock);
+        rollupTitle = MaxSDK::GetResourceStringAsMSTR(
+            IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_PERFORMANCE_TITLE);
+        return viewportDisplayUi;
+    }
+    case UsdStageAnimation: {
+        const auto viewportDisplayUi = new UsdStageNodeAnimationRollup(owner, paramBlock);
+        rollupTitle = MaxSDK::GetResourceStringAsMSTR(IDS_USDSTAGEOBJECT_ROLL_OUT_ANIMATION_TITLE);
+        return viewportDisplayUi;
+    }
+    case UsdStageRenderSettings: {
+        const auto renderSettingsUi = new UsdStageRenderSettingsRollup(owner, paramBlock);
+        rollupTitle
+            = MaxSDK::GetResourceStringAsMSTR(IDS_USDSTAGEOBJECT_ROLL_OUT_RENDER_SETUP_TITLE);
+        return renderSettingsUi;
+    }
+    case UsdStageSelection: {
+        // Only display the selection mode rollout in modify mode. Can't switch to sub-object
+        // mode(s) before actually having an object created.
+        if (GetCOREInterface()->GetCommandPanelTaskMode() != TASK_MODE_MODIFY) {
+            return nullptr;
+        }
+
+        const auto viewportSelectionUI = new UsdStageViewportSelectionRollup(owner, paramBlock);
+        rollupTitle = MaxSDK::GetResourceStringAsMSTR(
+            IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_SELECTION_SETUP_TITLE);
+        return viewportSelectionUI;
+    }
+    default: return nullptr;
+    }
+}
+
+ClassDesc2* GetUSDStageObjectClassDesc()
+{
+    static USDStageObjectclassDesc classDesc;
+    return &classDesc;
+}
+
+// Function Publishing
+// This is a static Maxscript interface attached to the USDStageObject ClassDesc
+// The goal is to expose static funtion callable from UsdStageObject itself.
+class UsdStageObjectStaticInterface : public FPStaticInterface
+{
+protected:
+    DECLARE_DESCRIPTOR(UsdStageObjectStaticInterface)
+
+    /*
+     * \brief Open a file explorer dialog at the specified path, allowing selection of an USD file,
+     *  then open the prim selection dialog and allow selection of a specific prim.
+     *  This method is exposed in maxscript as a static utility function.
+     * \param path The path where the file picker dialog will open, if null will open the file picker dialog at the default location.
+     * \param filterMode The applied filter type. Include or exclude the Prim types contained in filteredTypeNames.
+     * \param filteredTypeNames The Prim types used to filter the stage.
+     * \param showLoadPayloadsOption If true, the loadPayloads option is used / showed in the dialog.
+     * \param showOpenInUsdExplorerOption If true, the showInExplorer option is used / showed in the dialog.
+     * \param useUserSettings If true, will ignore the values of showLoadPayLoadsOption and showOpenInUsdExplorerOptions,
+     * the UI element will be shown and set to the saved user preferences by default.
+     * \return An array containing the file path to the selected USD file, the Prim path selected and whether payloads should be loaded.
+     */
+    Value* SelectRootLayerAndPrim(
+        const wchar_t*     path,
+        int                filterMode,
+        Tab<const TCHAR*>* filteredTypeNames,
+        bool               showLoadPayloadsOption,
+        bool               showOpenInUsdExplorerOption,
+        bool               useUserSettings)
+    {
+        QFileInfo fileInfo(QString::fromStdWString(path));
+
+        // If the user path points to a valid file already, don't open the file picker dialog.
+        // If the user specified a path to a file that don't exist, it'll open to the parent folder.
+        // If the user used an empty string as argument, the file picker will open at the default
+        // location ( Max versioned folder in the user documents )
+        if (fileInfo.isDir() && fileInfo.exists() || !fileInfo.exists()) {
+            fileInfo = QFileInfo { QFileDialog::getOpenFileName(
+                GetCOREInterface()->GetQmaxMainWindow(),
+                QCoreApplication::translate(
+                    "MaxUsdObjects", "Select Universal Scene Description (USD) File"),
+                fileInfo.absoluteFilePath(),
+                QCoreApplication::translate("MaxUsdObjects", "USD (*.usd;*.usda;*.usdc)")) };
+            if (!fileInfo.exists()) {
+                return 0;
+            }
+        }
+
+        std::vector<std::string> filters;
+        if (filteredTypeNames != nullptr) {
+            for (int i = 0; i < filteredTypeNames->Count(); i++) {
+                filters.emplace_back(MaxUsd::MaxStringToUsdString((*filteredTypeNames)[i]));
+            }
+        }
+
+        pxr::VtDictionary options;
+        static const std::string optionsCategoryKey = "PrimSelectionDialogPreferences";
+        if (useUserSettings) {
+            MaxUsd::OptionUtils::LoadUiOptions(optionsCategoryKey, options);
+            if (!options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads].IsHolding<bool>()) {
+                options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads] = true;
+            }
+            if (!options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer].IsHolding<bool>()) {
+                options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer] = true;
+            }
+        }
+        else {
+            if (showLoadPayloadsOption) {
+                options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads] = true;
+            }
+            if (showOpenInUsdExplorerOption) {
+                options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer] = true;
+            }
+        }
+
+        std::unique_ptr<UsdStageNodePrimSelectionDialog> primSelectionDialog
+            = std::make_unique<UsdStageNodePrimSelectionDialog>(
+                fileInfo.absoluteFilePath(),
+                nullptr,
+                static_cast<MaxUsd::TreeModelFactory::TypeFilteringMode>(filterMode),
+                filters,
+                options,
+                GetCOREInterface()->GetQmaxMainWindow());
+
+        primSelectionDialog->setWindowTitle(
+            QCoreApplication::translate("USDStageObject", "Select USD Prim from File"));
+
+        if (primSelectionDialog->exec() == QDialog::Accepted) {
+            // user hit OK
+            QString rootLayerPath = primSelectionDialog->GetRootLayerPath();
+            QString selectedPrim = primSelectionDialog->GetMaskPath();
+
+            if (useUserSettings) {
+                pxr::VtDictionary newOptions;
+                newOptions[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads]
+                    = primSelectionDialog->GetPayloadsLoaded();
+                newOptions[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer]
+                    = primSelectionDialog->GetOpenInUsdExplorer();
+                if (newOptions != options) {
+                    MaxUsd::OptionUtils::SaveUiOptions(optionsCategoryKey, newOptions);
+                }
+            }
+
+            Array* results = new Array(0);
+            results->append(new String(rootLayerPath.toStdWString().c_str()));
+            results->append(new String(selectedPrim.toStdWString().c_str()));
+            // Optionally displayed in the dialog - if not displayed, will be false here.
+            results->append(primSelectionDialog->GetPayloadsLoaded() ? &true_value : &false_value);
+            results->append(
+                primSelectionDialog->GetOpenInUsdExplorer() ? &true_value : &false_value);
+            return results;
+        }
+        return 0;
+    }
+
+    void OpenUsdExplorer() { USDExplorer::Instance()->Open(); }
+
+    void CloseUsdExplorer() { USDExplorer::Instance()->Close(); }
+
+    enum
+    {
+        fnIdSelectRootLayerAndPrim,
+        fnIdOpenUsdExplorer,
+        fnIdCloseUsdExplorer,
+    };
+
+    enum
+    {
+        eidFilteringType
+    };
+
+// clang-format off
+    BEGIN_FUNCTION_MAP
+        FN_6(fnIdSelectRootLayerAndPrim, TYPE_VALUE, SelectRootLayerAndPrim, TYPE_STRING, TYPE_ENUM, TYPE_STRING_TAB, TYPE_BOOL, TYPE_BOOL, TYPE_BOOL);
+        VFN_0(fnIdOpenUsdExplorer, OpenUsdExplorer);
+        VFN_0(fnIdCloseUsdExplorer, CloseUsdExplorer);
+    END_FUNCTION_MAP
+// clang-format on
+};
+
+#define USDSTAGEOBJECT_FP_INTERFACE Interface_ID(0x130335d6, 0xe7a7529)
+
+// clang-format off
+static UsdStageObjectStaticInterface usdStageObjectStaticInterface(
+        USDSTAGEOBJECT_FP_INTERFACE, _T("UsdStageObjectInterface"), 0, GetUSDStageObjectClassDesc(), FP_STATIC_METHODS,
+        // Functions
+        UsdStageObjectStaticInterface::fnIdSelectRootLayerAndPrim, _T("SelectRootLayerAndPrim"), IDS_SELECTLAYERANDPRIM,
+        TYPE_VALUE, FP_NO_REDRAW, 6,
+        _T("rootFolderPath"), 0, TYPE_STRING, f_keyArgDefault, _T(""),
+        _T("filterMode"), 0, TYPE_ENUM, UsdStageObjectStaticInterface::eidFilteringType, f_keyArgDefault, MaxUsd::TreeModelFactory::TypeFilteringMode::NoFilter,
+        _T("filteredTypes"), 0, TYPE_STRING_TAB, f_keyArgDefault, NULL,
+        _T("showLoadPayloadsOption"), 0, TYPE_BOOL, f_keyArgDefault, TRUE,
+        _T("showOpenInExplorerOption"), 0, TYPE_BOOL, f_keyArgDefault, TRUE,
+        _T("useUserSettings"), 0, TYPE_BOOL, f_keyArgDefault, FALSE,
+        UsdStageObjectStaticInterface::fnIdOpenUsdExplorer, _T("OpenUsdExplorer"), IDS_OPENUSDEXPLORER, TYPE_VALUE, FP_NO_REDRAW, 0,
+        UsdStageObjectStaticInterface::fnIdCloseUsdExplorer, _T("CloseUsdExplorer"), IDS_CLOSEUSDEXPLORER, TYPE_VALUE, FP_NO_REDRAW, 0,
+
+        enums,
+        UsdStageObjectStaticInterface::eidFilteringType, 3,
+        _T("none"), MaxUsd::TreeModelFactory::TypeFilteringMode::NoFilter,
+        _T("include"), MaxUsd::TreeModelFactory::TypeFilteringMode::Include,
+        _T("exclude"), MaxUsd::TreeModelFactory::TypeFilteringMode::Exclude,
+
+        p_end);
+// clang-format on
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.h b/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.h
new file mode 100644
index 0000000..9da8a1c
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDStageObjectclassDesc.h
@@ -0,0 +1,47 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <iparamb2.h>
+
+class USDStageObjectclassDesc : public ClassDesc2
+{
+public:
+    int          IsPublic() override;
+    void*        Create(BOOL loading = FALSE) override;
+    const MCHAR* ClassName() override;
+    const MCHAR* NonLocalizedClassName() override;
+    Class_ID     ClassID() override;
+
+    const MCHAR* InternalName() override;
+
+    HINSTANCE HInstance() override;
+
+    MaxSDK::QMaxParamBlockWidget* CreateQtWidget(
+        ReferenceMaker& owner,
+        IParamBlock2&   paramBlock,
+        const MapID     BparamMapID,
+        MSTR&           rollupTitle,
+        int&            rollupFlags,
+        int&            rollupCategory) override;
+
+    SClass_ID    SuperClassID() override;
+    const MCHAR* Category() override;
+};
+
+ClassDesc2* GetUSDStageObjectClassDesc();
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDTransformControllers.cpp b/src/MaxUsdObjects/Objects/USDTransformControllers.cpp
new file mode 100644
index 0000000..719661a
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDTransformControllers.cpp
@@ -0,0 +1,387 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDTransformControllers.h"
+
+#include "USDStageObject.h"
+#include "USDTransformControllersClassDesc.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/resource.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <MaxUsd/Utilities/UsdLinkUtils.h>
+
+#include <decomp.h>
+#include <inode.h>
+#include <iparamm2.h>
+
+#define PBLOCK_REF 0
+
+Class_ID USDXFORMABLECONTROLLER_CLASS_ID(0x1a855cd0, 0x7b2c3bd2);
+
+// clang-format off
+ParamBlockDesc2 xformableControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDXformControllerParamBlock"),
+	IDS_USDXFORMCONTROLLER_CLASS_NAME,
+	GetUSDXformableControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP,
+	PBLOCK_REF,
+	1,
+	USDTransformControllerMapID_General,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("XformablePrimPath"), TYPE_STRING, 0, IDS_USDXFORMCONTROLLER_XFORMABLEPATH_PARAM,p_default, L"", p_end, 
+	USDControllerParams_PreventNodeDeletion,_M("PreventsNodeDeletion"), TYPE_BOOL, 0, IDS_USDXFORMCONTROLLER_PREVENTSNODEDELETION_PARAM ,p_default, FALSE, p_end,
+	p_end);
+// clang-format on
+
+USDXformableController::USDXformableController()
+{
+    GetUSDXformableControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDXformableController::ClassID() { return USDXFORMABLECONTROLLER_CLASS_ID; }
+
+SClass_ID USDXformableController::SuperClassID() { return CTRL_MATRIX3_CLASS_ID; }
+
+void USDXformableController::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    if (!stageNode || !xformable.GetPrim().IsValid()) {
+        return;
+    }
+    const auto matrix = static_cast<Matrix3*>(val);
+    *matrix = USDStageObject::GetMaxScenePrimTransform(stageNode, xformable.GetPrim(), t, true);
+    valid = Interval(t, t);
+}
+
+void USDXformableController::GetClassName(MSTR& className, bool localized) const
+{
+    className
+        = localized ? GetString(IDS_USDXFORMCONTROLLER_CLASS_NAME) : _T("USD Xformable Controller");
+}
+
+RefTargetHandle USDXformableController::Clone(RemapDir& remap)
+{
+    USDXformableController* newXform = new USDXformableController();
+    newXform->ReplaceReference(PBLOCK_REF, remap.CloneRef(paramBlock));
+    BaseClone(this, newXform, remap);
+    return newXform;
+}
+
+bool USDXformableController::IsSourceObjectValid() const { return xformable.GetPrim().IsValid(); }
+
+ClassDesc2* USDXformableController::GetControllerClassDesc() const
+{
+    return GetUSDXformableControllerClassDesc();
+}
+
+bool USDXformableController::UpdateSource(IParamBlock2* pb)
+{
+    return MaxUsd::UpdateUsdSource<pxr::UsdGeomXformable>(
+        stageNode, xformable, pb, USDControllerParams_USDStage, USDControllerParams_Path);
+}
+
+const pxr::UsdGeomXformable& USDXformableController::GetXformable() { return xformable; }
+
+BOOL USDXformableController::PreventNodeDeletion()
+{
+    BOOL     value = false;
+    Interval valid;
+    paramBlock->GetValue(
+        USDControllerParams_PreventNodeDeletion, GetCOREInterface()->GetTime(), value, valid);
+    return static_cast<bool>(value);
+}
+
+void USDPRSController::EndEditParams(IObjParam* ip, ULONG flags, Animatable* next)
+{
+    // Work around 3dsMax issue where the flag is not properly set in version <= 2025.
+    const auto removeUi = flags | END_EDIT_REMOVEUI;
+    USDXformableController::EndEditParams(ip, removeUi, next);
+}
+
+bool USDPRSController::IsSourceObjectValid() const
+{
+    return attribute.IsValid() || USDXformableController::IsSourceObjectValid();
+}
+
+bool USDPRSController::UpdateSource(IParamBlock2* pb)
+{
+    bool attrChanged = MaxUsd::UpdateUsdSourceAttr(
+        stageNode, attribute, paramBlock, USDControllerParams_USDStage, USDControllerParams_Path);
+
+    return attrChanged || USDXformableController::UpdateSource(pb);
+}
+
+const pxr::UsdAttribute& USDPRSController::GetAttr() const { return attribute; }
+
+Class_ID USDPOSITIONCONTROLLER_CLASS_ID(0x48bd4ade, 0x23b00d7);
+
+// clang-format off
+ParamBlockDesc2 positionControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDPositionControllerParamBlock"),
+	IDS_USDPOSITIONCONTROLLER_CLASS_NAME,
+	GetUSDPositionControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP,
+	PBLOCK_REF,
+	1,
+	USDTransformControllerMapID_General,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("Path"), TYPE_STRING, 0, IDS_USDTRANSFORMCONTROLLER_PATH_PARAM,p_default, L"", p_end,
+	p_end);
+// clang-format on
+
+USDPositionController::USDPositionController()
+{
+    GetUSDPositionControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDPositionController::ClassID() { return USDPOSITIONCONTROLLER_CLASS_ID; }
+
+SClass_ID USDPositionController::SuperClassID() { return CTRL_POSITION_CLASS_ID; }
+
+void USDPositionController::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    if (!stageNode) {
+        return;
+    }
+
+    const auto  xformable = GetXformable();
+    const auto& attr = GetAttr();
+
+    Point3 translate;
+    // Case where the translation is driven by a Xformable prim.
+    if (xformable.GetPrim().IsValid()) {
+        auto fullTransform = USDStageObject::GetMaxScenePrimTransform(
+            stageNode, GetXformable().GetPrim(), t, true);
+        translate = fullTransform.GetTrans();
+    }
+    // Case where the translation is driven by an attribute prim.
+    else if (attr.IsValid()) {
+        auto value = MaxUsd::GetAttrValue(stageNode, attr, t);
+        if (value.IsEmpty()) {
+            return;
+        }
+        if (value.CanCast<pxr::GfVec3f>()) {
+            translate = MaxUsd::ToMax(value.Cast<pxr::GfVec3f>().Get<pxr::GfVec3f>());
+        } else {
+            return;
+        }
+    } else {
+        return;
+    }
+
+    // PRS controllers have two GetValue() modes, relative and absolute.
+    // In relative mode, a transform is given that needs to be pre-multiplied.
+    // In absolute mode, the translation is returned directly.
+    if (method == CTRL_RELATIVE) {
+        const auto matrix = static_cast<Matrix3*>(val);
+        matrix->PreTranslate(translate);
+    }
+    // CTRL_ABSOLUTE
+    else {
+        const auto position = static_cast<Point3*>(val);
+        *position = translate;
+    }
+    valid = Interval(t, t);
+}
+
+void USDPositionController::GetClassName(MSTR& className, bool localized) const
+{
+    className = localized ? GetString(IDS_USDPOSITIONCONTROLLER_CLASS_NAME) : _T("USD Position");
+}
+
+ClassDesc2* USDPositionController::GetControllerClassDesc() const
+{
+    return GetUSDPositionControllerClassDesc();
+}
+
+Class_ID USDSCALECONTROLLER_CLASS_ID(0x8b63fef, 0x6eba1867);
+
+// clang-format off
+ParamBlockDesc2 scaleControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDScaleControllerParamBlock"),
+	IDS_USDSCALECONTROLLER_CLASS_NAME,
+	GetUSDScaleControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP,
+	PBLOCK_REF,
+	1,
+	USDTransformControllerMapID_General,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("Path"), TYPE_STRING, 0, IDS_USDTRANSFORMCONTROLLER_PATH_PARAM,p_default, L"", p_end,
+	p_end);
+// clang-format on
+
+USDScaleController::USDScaleController()
+{
+    GetUSDScaleControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDScaleController::ClassID() { return USDSCALECONTROLLER_CLASS_ID; }
+
+SClass_ID USDScaleController::SuperClassID() { return CTRL_SCALE_CLASS_ID; }
+
+void USDScaleController::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    if (!stageNode) {
+        return;
+    }
+
+    const auto  xformable = GetXformable();
+    const auto& attr = GetAttr();
+
+    Point3 scaling;
+    // Case where the scaling is driven by a Xformable prim.
+    if (xformable.GetPrim().IsValid()) {
+        const auto fullTransform = USDStageObject::GetMaxScenePrimTransform(
+            stageNode, GetXformable().GetPrim(), t, true);
+        AffineParts ap;
+        decomp_affine(fullTransform, &ap);
+        scaling = ap.k;
+    }
+    // Case where the scaling is driven by an attribute prim.
+    else if (attr.IsValid()) {
+        auto value = MaxUsd::GetAttrValue(stageNode, attr, t);
+        if (value.IsEmpty()) {
+            return;
+        }
+        if (value.CanCast<pxr::GfVec3f>()) {
+            scaling = MaxUsd::ToMax(value.Cast<pxr::GfVec3f>().Get<pxr::GfVec3f>());
+        } else {
+            return;
+        }
+    } else {
+        return;
+    }
+
+    // PRS controllers have two GetValue() modes, relative and absolute.
+    // In relative mode, a transform is given that needs to be pre-multiplied.
+    // In absolute mode, the scale is returned directly.
+    if (method == CTRL_RELATIVE) {
+        const auto matrix = static_cast<Matrix3*>(val);
+        matrix->PreScale(scaling);
+    }
+    // CTRL_ABSOLUTE
+    else {
+        const auto scaleValue = static_cast<ScaleValue*>(val);
+        *scaleValue = scaling;
+    }
+    valid = Interval(t, t);
+}
+
+void USDScaleController::GetClassName(MSTR& className, bool localized) const
+{
+    className = localized ? GetString(IDS_USDSCALECONTROLLER_CLASS_NAME) : _T("USD Scale");
+}
+
+ClassDesc2* USDScaleController::GetControllerClassDesc() const
+{
+    return GetUSDScaleControllerClassDesc();
+}
+
+Class_ID USDROTATIONCONTROLLER_CLASS_ID(0x4a4f675a, 0x57a314b6);
+
+// clang-format off
+ParamBlockDesc2 rotationControllerParamblockDesc(PBLOCK_REF, 
+	_M("USDRotationControllerParamBlock"),
+	IDS_USDROTATIONCONTROLLER_CLASS_NAME,
+	GetUSDRotationControllerClassDesc(), 
+	P_AUTO_CONSTRUCT | P_AUTO_UI_QT | P_MULTIMAP,
+	PBLOCK_REF,
+	1,
+	USDTransformControllerMapID_General,
+	// Parameters
+	USDControllerParams_USDStage, _M("USDStage"), TYPE_INODE, 0, IDS_USDCONTROLLER_USDSTAGE_PARAM, p_end, 
+	USDControllerParams_Path,_M("Path"), TYPE_STRING, 0, IDS_USDTRANSFORMCONTROLLER_PATH_PARAM,p_default, L"", p_end,
+	p_end);
+// clang-format on
+
+USDRotationController::USDRotationController()
+{
+    GetUSDRotationControllerClassDesc()->MakeAutoParamBlocks(this);
+}
+
+Class_ID USDRotationController::ClassID() { return USDROTATIONCONTROLLER_CLASS_ID; }
+
+SClass_ID USDRotationController::SuperClassID() { return CTRL_ROTATION_CLASS_ID; }
+
+void USDRotationController::GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method)
+{
+    if (!stageNode) {
+        return;
+    }
+
+    const auto  xformable = GetXformable();
+    const auto& attr = GetAttr();
+
+    Quat rotation;
+    // Case where the rotation is driven by a Xformable prim.
+    if (xformable.GetPrim().IsValid()) {
+        const auto fullTransform = USDStageObject::GetMaxScenePrimTransform(
+            stageNode, GetXformable().GetPrim(), t, true);
+        AffineParts ap;
+        decomp_affine(fullTransform, &ap);
+        rotation = ap.q;
+    }
+    // Case where the rotation is driven by an attribute prim.
+    else if (attr.IsValid()) {
+        auto value = MaxUsd::GetAttrValue(stageNode, attr, t);
+        if (value.IsEmpty()) {
+            return;
+        }
+
+        bool quatConverted = MaxUsd::ToMaxQuat<pxr::GfQuatf>(value, rotation)
+            || MaxUsd::ToMaxQuat<pxr::GfQuatd>(value, rotation)
+            || MaxUsd::ToMaxQuat<pxr::GfQuath>(value, rotation);
+        if (!quatConverted) {
+            return;
+        }
+    } else {
+        return;
+    }
+
+    // PRS controllers have two GetValue() modes, relative and absolute.
+    // In relative mode, a transform is given that needs to be pre-multiplied.
+    // In absolute mode, the rotation is returned directly.
+    if (method == CTRL_RELATIVE) {
+        const auto matrix = static_cast<Matrix3*>(val);
+        PreRotateMatrix(*matrix, rotation);
+    }
+    // CTRL_ABSOLUTE
+    else {
+        const auto quatValue = static_cast<Quat*>(val);
+        *quatValue = rotation;
+    }
+    valid = Interval(t, t);
+}
+
+void USDRotationController::GetClassName(MSTR& className, bool localized) const
+{
+    className = localized ? GetString(IDS_USDROTATIONCONTROLLER_CLASS_NAME) : _T("USD Rotation");
+}
+
+ClassDesc2* USDRotationController::GetControllerClassDesc() const
+{
+    return GetUSDRotationControllerClassDesc();
+}
+
+// Disable obscure warning only occurring for 2022 (pixar usd version: 21.11):
+// no definition for inline function : pxr::DefaultValueHolder Was not able to identify what is
+// triggering this.
+#pragma warning(disable : 4506)
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Objects/USDTransformControllers.h b/src/MaxUsdObjects/Objects/USDTransformControllers.h
new file mode 100644
index 0000000..bcda0db
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDTransformControllers.h
@@ -0,0 +1,136 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "USDBaseController.h"
+
+#include <control.h>
+#include <iparamb2.h>
+
+enum TransformControllersParamMapID
+{
+    USDTransformControllerMapID_General
+};
+
+extern Class_ID USDXFORMABLECONTROLLER_CLASS_ID;
+
+class USDXformableController : public USDBaseController
+{
+public:
+    USDXformableController();
+
+    // Controller overrides.
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+    void      GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void      GetClassName(MSTR& s, bool localized = true) const override;
+    BOOL      PreventNodeDeletion() override;
+    // From ReferenceTarget
+    RefTargetHandle Clone(RemapDir& remap);
+
+    // USDBaseController overrides
+    bool        IsSourceObjectValid() const override;
+    ClassDesc2* GetControllerClassDesc() const override;
+    bool        UpdateSource(IParamBlock2* pb) override;
+
+    /**
+     * Returns the Xformable prim used as source for this transform controller.
+     * @return The Xformable.
+     */
+    const pxr::UsdGeomXformable& GetXformable();
+
+private:
+    /// The Xformable driving the controller.
+    pxr::UsdGeomXformable xformable;
+};
+
+/**
+ * Base class for USD PRS controllers. PRS controllers can source their transforms
+ * either from xformables, or attributes.
+ * See https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=prs_controllers_and_node_transfo
+ */
+class USDPRSController : public USDXformableController
+{
+public:
+    void EndEditParams(IObjParam* ip, ULONG flags, Animatable* next) override;
+
+    bool IsSourceObjectValid() const override;
+    bool UpdateSource(IParamBlock2* pb) override;
+
+    /**
+     * The source attribute for the controller. The returned attribute
+     * is invalid if the controller is sourcing its transform from
+     * a Xformable.
+     * @return
+     */
+    const pxr::UsdAttribute& GetAttr() const;
+
+private:
+    /// The source attribute for the controller, left invalid
+    /// if sourcing the transform from an xformable prim.
+    pxr::UsdAttribute attribute;
+};
+
+extern Class_ID USDPOSITIONCONTROLLER_CLASS_ID;
+
+class USDPositionController : public USDPRSController
+{
+public:
+    USDPositionController();
+
+    // Controller overrides.
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+    void      GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void      GetClassName(MSTR& s, bool localized = true) const override;
+
+    // USDBaseController overrides
+    ClassDesc2* GetControllerClassDesc() const override;
+};
+
+extern Class_ID USDSCALECONTROLLER_CLASS_ID;
+
+class USDScaleController : public USDPRSController
+{
+public:
+    USDScaleController();
+
+    // Controller overrides.
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+    void      GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void      GetClassName(MSTR& s, bool localized = true) const override;
+
+    // USDBaseController overrides
+    ClassDesc2* GetControllerClassDesc() const override;
+};
+
+extern Class_ID USDROTATIONCONTROLLER_CLASS_ID;
+
+class USDRotationController : public USDPRSController
+{
+public:
+    USDRotationController();
+
+    // Controller overrides.
+    Class_ID  ClassID() override;
+    SClass_ID SuperClassID() override;
+    void      GetValue(TimeValue t, void* val, Interval& valid, GetSetMethod method) override;
+    void      GetClassName(MSTR& s, bool localized = true) const override;
+
+    // USDBaseController overrides
+    ClassDesc2* GetControllerClassDesc() const override;
+};
diff --git a/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.cpp b/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.cpp
new file mode 100644
index 0000000..6cd1fe5
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.cpp
@@ -0,0 +1,169 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDTransformControllersClassDesc.h"
+
+#include "USDTransformControllers.h"
+
+#include <MaxUsdObjects/DLLEntry.h>
+#include <MaxUsdObjects/Views/UsdControllerWidget.h>
+#include <MaxUsdObjects/resource.h>
+
+void* USDXformableControllerClassDesc::Create(BOOL) { return new USDXformableController(); }
+
+const TCHAR* USDXformableControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDXFORMCONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDXformableControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDXformableController");
+}
+
+SClass_ID USDXformableControllerClassDesc::SuperClassID() { return CTRL_MATRIX3_CLASS_ID; }
+
+Class_ID USDXformableControllerClassDesc::ClassID() { return USDXFORMABLECONTROLLER_CLASS_ID; }
+
+const TCHAR* USDXformableControllerClassDesc::InternalName()
+{
+    return _T("USDXformableController");
+}
+
+MaxSDK::QMaxParamBlockWidget* USDXformableControllerClassDesc::CreateQtWidget(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock,
+    const MapID     paramMapID,
+    MSTR&           rollupTitle,
+    int&            rollupFlags,
+    int&            rollupCategory)
+{
+    switch (paramMapID) {
+    case USDTransformControllerMapID_General: {
+        const auto controllerUI = new UsdControllerWidget(owner, paramBlock);
+        controllerUI->SetPathErrorMessage(QObject::tr("Invalid Xformable Path: "));
+        controllerUI->SetLabel(QObject::tr("Xformable Prim:"));
+        controllerUI->SetLabelTooltip(QObject::tr("The path of the xformable used as source."));
+        controllerUI->SetPickButtonTooltip(
+            QObject::tr("Select the USD stage node that contains the source xformable."));
+        rollupTitle = ClassName();
+        return controllerUI;
+    }
+    }
+    return nullptr;
+}
+
+ClassDesc2* GetUSDXformableControllerClassDesc()
+{
+    static USDXformableControllerClassDesc classDesc;
+    return &classDesc;
+}
+
+MaxSDK::QMaxParamBlockWidget* USDPRSControllerClassDesc::CreateQtWidget(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock,
+    const MapID     paramMapID,
+    MSTR&           rollupTitle,
+    int&            rollupFlags,
+    int&            rollupCategory)
+{
+    switch (paramMapID) {
+    case USDTransformControllerMapID_General: {
+        const auto controllerUI = new UsdControllerWidget(owner, paramBlock);
+        controllerUI->SetPathErrorMessage(QObject::tr("Invalid Path: "));
+        controllerUI->SetLabel(QObject::tr("Xformable Prim or Attribute:"));
+        controllerUI->SetLabelTooltip(
+            QObject::tr("The path of the xformable or attribute used as source."));
+        controllerUI->SetPickButtonTooltip(QObject::tr(
+            "Select the USD stage node that contains the source attribute or xformable."));
+        rollupTitle = ClassName();
+        return controllerUI;
+    }
+    }
+    return nullptr;
+}
+
+void* USDPositionControllerClassDesc::Create(BOOL) { return new USDPositionController(); }
+
+const TCHAR* USDPositionControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDPOSITIONCONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDPositionControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDPositionController");
+}
+
+SClass_ID USDPositionControllerClassDesc::SuperClassID() { return CTRL_POSITION_CLASS_ID; }
+
+Class_ID USDPositionControllerClassDesc::ClassID() { return USDPOSITIONCONTROLLER_CLASS_ID; }
+
+const TCHAR* USDPositionControllerClassDesc::InternalName() { return _T("USDPositionController"); }
+
+ClassDesc2* GetUSDPositionControllerClassDesc()
+{
+    static USDPositionControllerClassDesc classDesc;
+    return &classDesc;
+}
+
+void* USDScaleControllerClassDesc::Create(BOOL) { return new USDScaleController(); }
+
+const TCHAR* USDScaleControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDSCALECONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDScaleControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDScaleController");
+}
+
+SClass_ID USDScaleControllerClassDesc::SuperClassID() { return CTRL_SCALE_CLASS_ID; }
+
+Class_ID USDScaleControllerClassDesc::ClassID() { return USDSCALECONTROLLER_CLASS_ID; }
+
+const TCHAR* USDScaleControllerClassDesc::InternalName() { return _T("USDScaleController"); }
+
+ClassDesc2* GetUSDScaleControllerClassDesc()
+{
+    static USDScaleControllerClassDesc classDesc;
+    return &classDesc;
+}
+
+void* USDRotationControllerClassDesc::Create(BOOL) { return new USDRotationController(); }
+
+const TCHAR* USDRotationControllerClassDesc::ClassName()
+{
+    return GetString(IDS_USDROTATIONCONTROLLER_CLASS_NAME);
+}
+
+const TCHAR* USDRotationControllerClassDesc::NonLocalizedClassName()
+{
+    return _T("USDRotationController");
+}
+
+SClass_ID USDRotationControllerClassDesc::SuperClassID() { return CTRL_ROTATION_CLASS_ID; }
+
+Class_ID USDRotationControllerClassDesc::ClassID() { return USDROTATIONCONTROLLER_CLASS_ID; }
+
+const TCHAR* USDRotationControllerClassDesc::InternalName() { return _T("USDRotationController"); }
+
+ClassDesc2* GetUSDRotationControllerClassDesc()
+{
+    static USDRotationControllerClassDesc classDesc;
+    return &classDesc;
+}
diff --git a/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.h b/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.h
new file mode 100644
index 0000000..d53f392
--- /dev/null
+++ b/src/MaxUsdObjects/Objects/USDTransformControllersClassDesc.h
@@ -0,0 +1,89 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDBaseController.h"
+
+#include <iparamb2.h>
+
+class USDXformableControllerClassDesc : public USDBaseControllerClassDesc
+{
+public:
+    void*                         Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR*                  ClassName() override;
+    const TCHAR*                  NonLocalizedClassName() override;
+    SClass_ID                     SuperClassID() override;
+    Class_ID                      ClassID() override;
+    const TCHAR*                  InternalName() override;
+    MaxSDK::QMaxParamBlockWidget* CreateQtWidget(
+        ReferenceMaker& owner,
+        IParamBlock2&   paramBlock,
+        const MapID     BparamMapID,
+        MSTR&           rollupTitle,
+        int&            rollupFlags,
+        int&            rollupCategory) override;
+};
+
+ClassDesc2* GetUSDXformableControllerClassDesc();
+
+class USDPRSControllerClassDesc : public USDBaseControllerClassDesc
+{
+    MaxSDK::QMaxParamBlockWidget* CreateQtWidget(
+        ReferenceMaker& owner,
+        IParamBlock2&   paramBlock,
+        const MapID     BparamMapID,
+        MSTR&           rollupTitle,
+        int&            rollupFlags,
+        int&            rollupCategory) override;
+};
+
+class USDPositionControllerClassDesc : public USDPRSControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDPositionControllerClassDesc();
+
+class USDScaleControllerClassDesc : public USDPRSControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDScaleControllerClassDesc();
+
+class USDRotationControllerClassDesc : public USDPRSControllerClassDesc
+{
+public:
+    void*        Create(BOOL /*loading = FALSE*/) override;
+    const TCHAR* ClassName() override;
+    const TCHAR* NonLocalizedClassName() override;
+    SClass_ID    SuperClassID() override;
+    Class_ID     ClassID() override;
+    const TCHAR* InternalName() override;
+};
+
+ClassDesc2* GetUSDRotationControllerClassDesc();
\ No newline at end of file
diff --git a/src/MaxUsdObjects/USDAssetAccessor.cpp b/src/MaxUsdObjects/USDAssetAccessor.cpp
new file mode 100644
index 0000000..44b7bc4
--- /dev/null
+++ b/src/MaxUsdObjects/USDAssetAccessor.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDAssetAccessor.h"
+
+#include "dllentry.h"
+#include "resource.h"
+
+USDAssetAccessor::USDAssetAccessor(USDStageObject* refHolder)
+    : usdObject(refHolder)
+{
+}
+
+USDAssetAccessor::~USDAssetAccessor() { }
+
+MaxSDK::AssetManagement::AssetUser USDAssetAccessor::GetAsset() const
+{
+    IParamBlock2* pb = usdObject->GetParamBlock(0);
+    return pb ? pb->GetAssetUser(PBParameterIds::StageFile) : MaxSDK::AssetManagement::AssetUser();
+}
+
+bool USDAssetAccessor::SetAsset(const MaxSDK::AssetManagement::AssetUser& aNewAssetUser)
+{
+    IParamBlock2*                    pb = usdObject->GetParamBlock(0);
+    MaxSDK::AssetManagement::AssetId assetId = aNewAssetUser.GetId();
+    if (!pb) {
+        return false;
+    }
+    pb->SetValue(PBParameterIds::StageFile, 0, assetId);
+    return true;
+}
+
+MaxSDK::AssetManagement::AssetType USDAssetAccessor::GetAssetType() const
+{
+    return MaxSDK::AssetManagement::kOtherAsset;
+}
+
+const MCHAR* USDAssetAccessor::GetAssetDesc() const { return GetString(IDS_USDSTAGE_ASSET_DESC); }
+
+const MCHAR* USDAssetAccessor::GetAssetClientDesc() const { return GetString(IDS_LIBDESCRIPTION); }
diff --git a/src/MaxUsdObjects/USDExplorer.cpp b/src/MaxUsdObjects/USDExplorer.cpp
new file mode 100644
index 0000000..15b49fa
--- /dev/null
+++ b/src/MaxUsdObjects/USDExplorer.cpp
@@ -0,0 +1,532 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDExplorer.h"
+
+#include "MaxUsdUfe/UfeUtils.h"
+#include "MaxUsdUfe/UsdTreeColumns.h"
+#include "Objects/USDStageObject.h"
+
+#include <UFEUI/StandardTreeColumns.h>
+#include <UFEUI/Views/Explorer.h>
+#include <UFEUI/Views/ExplorerHost.h>
+#include <UFEUI/editCommand.h>
+
+#include <MaxUsd/Utilities/UiUtils.h>
+
+#include <usdUfe/ufe/Global.h>
+#include <usdUfe/ufe/StagesSubject.h>
+
+#include <Qt/QMaxHelpers.h>
+#include <Qt/QmaxDockWidget.h>
+#include <ufe/hierarchy.h>
+#include <ufe/runTimeMgr.h>
+
+#include <QtWidgets/QApplication>
+#include <max.h>
+#include <qevent.h>
+#include <qpointer.h>
+
+std::unique_ptr<USDExplorer> USDExplorer::instance;
+
+MaxSDK::QmaxDockWidget* getHostDockWidget();
+
+namespace {
+const std::string filterNames = "InactivePrims";
+
+void PopulateCustomizeColumnMenu(QMenu* configureColumnsMenu)
+{
+    const auto toggleColumnVisibility = [](int visualIdx, bool checked) {
+        auto explorer = USDExplorer::Instance();
+        if (explorer->IsColumnHidden(visualIdx) == checked) {
+            explorer->ToggleColumnHiddenState(visualIdx);
+        }
+    };
+    auto explorer = USDExplorer::Instance();
+
+    const auto visibilityColumnAction = configureColumnsMenu->addAction(
+        QObject::tr("Visibility"), std::bind(toggleColumnVisibility, 1, std::placeholders::_1));
+    visibilityColumnAction->setCheckable(true);
+    const auto typeColumnAction = configureColumnsMenu->addAction(
+        QObject::tr("Type"), std::bind(toggleColumnVisibility, 2, std::placeholders::_1));
+    typeColumnAction->setCheckable(true);
+    const auto kindColumnAction = configureColumnsMenu->addAction(
+        QObject::tr("Kind"), std::bind(toggleColumnVisibility, 3, std::placeholders::_1));
+    kindColumnAction->setCheckable(true);
+    const auto purposeColumnAction = configureColumnsMenu->addAction(
+        QObject::tr("Purpose"), std::bind(toggleColumnVisibility, 4, std::placeholders::_1));
+    purposeColumnAction->setCheckable(true);
+
+    QObject::connect(configureColumnsMenu, &QMenu::aboutToShow, [=]() {
+        visibilityColumnAction->setChecked(!explorer->IsColumnHidden(1));
+        typeColumnAction->setChecked(!explorer->IsColumnHidden(2));
+        kindColumnAction->setChecked(!explorer->IsColumnHidden(3));
+        purposeColumnAction->setChecked(!explorer->IsColumnHidden(4));
+    });
+}
+
+class ContextMenuEventFilter : public QObject
+{
+public:
+    ContextMenuEventFilter(QObject* parent)
+        : QObject(parent)
+    {
+    }
+
+    bool eventFilter(QObject* watched, QEvent* event)
+    {
+        if (event && event->type() == QEvent::Type::ContextMenu) {
+            auto contextmenu_event = static_cast<QContextMenuEvent*>(event);
+            if (auto treeView = dynamic_cast<QTreeView*>(watched)) {
+                if (treeView->header()->geometry().contains(contextmenu_event->pos())) {
+                    QMenu menu(treeView);
+                    PopulateCustomizeColumnMenu(&menu);
+                    menu.exec(contextmenu_event->globalPos());
+                    contextmenu_event->accept();
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    static ContextMenuEventFilter* Instance();
+};
+
+ContextMenuEventFilter* ContextMenuEventFilter::Instance()
+{
+    static QPointer<ContextMenuEventFilter> instance
+        = new ContextMenuEventFilter(getHostDockWidget());
+    return instance;
+}
+
+class USDExplorerQMaxMainWindow : public MaxSDK::QmaxMainWindow
+{
+public:
+    USDExplorerQMaxMainWindow(QWidget* parent, Qt::WindowFlags flags)
+        : QmaxMainWindow(parent, flags)
+    {
+    }
+
+protected:
+    QMenu* createPopupMenu() override
+    {
+        auto menu = QmaxMainWindow::createPopupMenu();
+        // remove the customize... context menu from the menu.
+        auto actions = menu->actions();
+        if (!actions.isEmpty()) {
+            if (auto first_action = menu->actions().first()) {
+                if (!first_action->isCheckable()) // some weak check
+                {
+                    menu->removeAction(first_action);
+                }
+            }
+        }
+        return menu;
+    }
+};
+
+} // namespace
+
+MaxSDK::QmaxDockWidget* getHostDockWidget()
+{
+    // Only ever need a single instance.
+
+    static MaxSDK::QmaxDockWidget* dockWidget = [] {
+        auto max_main_window = GetCOREInterface()->GetQmaxMainWindow();
+
+        auto dockWidget = new MaxSDK::QmaxDockWidget(
+            "USD Explorer", QObject::tr("USD Explorer"), max_main_window);
+        dockWidget->setProperty("QmaxDockMinMaximizable", true);
+
+        auto explorer_main_window = new USDExplorerQMaxMainWindow(dockWidget, Qt::Widget);
+        auto explorerHost = new UfeUi::ExplorerHost(explorer_main_window);
+        explorerHost->setPlaceHolderText(
+            QObject::tr("No stage data currently displayed.\nSelect a USD Stage Object "
+                        "and open it in the explorer, from the Parameters rollup."));
+        dockWidget->setWidget(explorer_main_window);
+
+        dockWidget->setFocusProxy(explorerHost);
+        dockWidget->setFocusPolicy(Qt::StrongFocus);
+
+        // Workaround to trick 3dsmax into properly docking this widget.
+        max_main_window->addDockWidget(Qt::RightDockWidgetArea, dockWidget);
+        // We added it as a dock widget and that would show the widget, but at this point we just
+        // want to set it up, not necessarily show it.
+        dockWidget->hide();
+
+        // We want our dock-widget to float with native window behavior
+        dockWidget->setFloating(true);
+        // Arbitrary default size, similar to the Scene Explorer.
+        dockWidget->resize(MaxSDK::UIScaled(280), MaxSDK::UIScaled(440));
+
+        // Set back default size when un-docking.
+        QSize floatingSize = dockWidget->size();
+        QObject::connect(
+            dockWidget,
+            &MaxSDK::QmaxDockWidget::topLevelChanged,
+            [floatingSize, dockWidget](bool topLevel) {
+                if (topLevel) {
+                    dockWidget->resize(floatingSize);
+                }
+            });
+
+        // USD Specific menus.
+        const auto menuBar = explorerHost->menuBar();
+        const auto displayMenu = menuBar->addMenu(QObject::tr("Display"));
+
+        // Show inactive prims option.
+        const auto inactivePrimAction = displayMenu->addAction("Inactive Prims", []() {
+            // Toggle display of inactive prims.
+            const auto explorer = USDExplorer::Instance();
+            explorer->SetShowInactivePrims(!explorer->ShowInactivePrims());
+        });
+        inactivePrimAction->setCheckable(true);
+        inactivePrimAction->setChecked(USDExplorer::Instance()->ShowInactivePrims());
+
+        // Auto-expand to selection option.
+        const auto autoExpandAction = displayMenu->addAction("Auto-Expand to Selection", []() {
+            const auto explorer = USDExplorer::Instance();
+            explorer->SetAutoExpandedToSelection(!explorer->IsAutoExpandedToSelection());
+        });
+        autoExpandAction->setCheckable(true);
+        autoExpandAction->setChecked(USDExplorer::Instance()->IsAutoExpandedToSelection());
+
+        // customize menu
+        const auto customizeMenu = menuBar->addMenu(QObject::tr("Customize"));
+        const auto configureColumnsMenu = customizeMenu->addMenu(QObject::tr("Configure Columns"));
+        PopulateCustomizeColumnMenu(configureColumnsMenu);
+
+        return dockWidget;
+    }();
+
+    return dockWidget;
+}
+
+static UfeUi::ExplorerHost* getExplorerHost()
+{
+    // If we "only ever need a single instance" of the dock, we only ever will
+    // get the same single instance of the host as well.
+    static UfeUi::ExplorerHost* host
+        = getHostDockWidget()->findChild<UfeUi::ExplorerHost*>("ExplorerHost");
+    return host;
+}
+
+USDExplorer* USDExplorer::Instance()
+{
+    if (!instance) {
+        instance = std::unique_ptr<USDExplorer>(new USDExplorer);
+    }
+    return instance.get();
+}
+
+void USDExplorer::Open()
+{
+    const auto dock = getHostDockWidget();
+    dock->setWindowState(dock->windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
+    dock->show();
+    dock->raise();
+}
+
+void USDExplorer::Close()
+{
+    const auto host = getHostDockWidget();
+    host->hide();
+}
+
+void USDExplorer::OpenStage(USDStageObject* stageObject)
+{
+    if (!stageObject) {
+        return;
+    }
+
+    const auto stage = stageObject->GetUSDStage();
+    if (!stage) {
+        return;
+    }
+
+    const auto stagePath = MaxUsd::ufe::getUsdStageObjectPath(stageObject);
+    if (stagePath.empty()) {
+        return;
+    }
+
+    const auto sceneItem = Ufe::Hierarchy::createItem(stagePath);
+    if (!sceneItem) {
+        return;
+    }
+
+    const auto dock = getHostDockWidget();
+    const auto host = dock->findChild<UfeUi::ExplorerHost*>("ExplorerHost");
+
+    UfeUi::Explorer* explorer = host->setActiveExplorer(sceneItem->path());
+    if (!explorer) {
+        UfeUi::TreeColumns columns;
+
+        columns.push_back(std::make_shared<NameColumn>(QString("root"), 0));
+        columns.push_back(std::make_shared<VisColumn>(1));
+        columns.push_back(std::make_shared<TypeColumn>(2));
+        columns.push_back(std::make_shared<KindColumn>(3));
+        columns.push_back(std::make_shared<PurposeColumn>(4));
+
+        UfeUi::TypeFilter typeFilter;
+
+        const UfeUi::Explorer::ColorScheme colors = {
+            // match item color in 3dsMax.
+            QApplication::palette().color(QPalette::Inactive, QPalette::Button).name(),
+            // match item selected color in 3dsMax.
+            QApplication::palette().color(QPalette::Normal, QPalette::Light).name(),
+            // match item selected/hovered color in 3dsMax
+            QApplication::palette().color(QPalette::Inactive, QPalette::Light).name(),
+        };
+
+        const QString treeViewBranchAdjustStyle
+            = QString { "	QTreeView, QTreeWidget{"
+                        "	    show-decoration-selected: 1;"
+                        "	}"
+                        "	QTreeView:branch:hover {"
+                        "		background-color: %1;"
+                        "	}"
+                        "	QTreeView:branch:selected {"
+                        "		background-color: %2;"
+                        "	}"
+                        "	QTreeView:branch:selected:hover {"
+                        "		background-color: %3;"
+                        "	}"
+                        "	QTreeView::branch:open{"
+                        "		padding: 0.35em;"
+                        "	}"
+                        "	QTreeView::branch:closed{"
+                        "		padding: 0.35em;"
+                        "	}"
+                        "	QTreeView::branch:open:has-children{"
+                        "		image: url(:/ufe/Icons/branch_opened.png);"
+                        "	}"
+                        "	QTreeView::branch:closed:has-children {"
+                        "		image: url(:/ufe/Icons/branch_closed.png);"
+                        "	}" }
+                  .arg(colors.hover.name(), colors.selected.name(), colors.selectedHover.name());
+
+        explorer = new UfeUi::Explorer(
+            sceneItem,
+            columns,
+            typeFilter,
+            childFilter,
+            autoExpandToSelection,
+            treeViewBranchAdjustStyle,
+            colors);
+
+        const auto        layerNameWithExt = stage->GetRootLayer()->GetDisplayName();
+        const size_t      lastIndex = layerNameWithExt.find_last_of(".");
+        const std::string layerName = layerNameWithExt.substr(0, lastIndex);
+
+        explorer->setColumnState(1 /*VisColumn*/, IsColumnHidden(1));
+        explorer->setColumnState(2 /*TypeColumn*/, IsColumnHidden(2));
+        explorer->setColumnState(3 /*KindColumn*/, IsColumnHidden(3));
+        explorer->setColumnState(4 /*PurposeColumn*/, IsColumnHidden(4));
+
+        for (int i = 1; i < 4; ++i) {
+            int w = GetManualColumnWidth(i);
+            if (w != -1) {
+                explorer->treeView()->header()->resizeSection(i, w);
+            } else {
+                explorer->treeView()->resizeColumnToContents(i);
+            }
+        }
+
+        host->addExplorer(explorer, layerName.c_str(), true);
+
+        explorer->treeView()->installEventFilter(ContextMenuEventFilter::Instance());
+    }
+    // Make sure the host is showed.
+    dock->show();
+
+    // We want the 3dsMax hotkeys to work while we are focused on the treeView.
+    // For some keys this is a bit clunky, as both the treeView and 3dsMax will
+    // react to the same key (for example the up-arrow). However, this is also
+    // the behavior in the Scene Explorer, and it is quite hard to selectively
+    // decide, as we are in a mix of QT and Win32. Probably to be improved later.
+    // The timing of the call to enable max accelerators is important, we do it
+    // here as it is after the "show", yet before the control gets focus. If we
+    // do it too early, max will apply its own rules vs what widget types should
+    // disable accelerators, and undo what we do. In general, QTreeViews have
+    // accelerator disabled.
+    auto treeViews = host->findChildren<QTreeView*>();
+    for (const auto& treeView : treeViews) {
+        MaxUsd::Ui::DisableMaxAcceleratorsOnFocus(treeView, false);
+    }
+    dock->setWindowState(dock->windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
+    dock->raise();
+}
+
+void USDExplorer::CloseStage(USDStageObject* stageObject)
+{
+    if (!stageObject) {
+        return;
+    }
+
+    const auto stagePath = MaxUsd::ufe::getUsdStageObjectPath(stageObject);
+    if (stagePath.empty()) {
+        return;
+    }
+
+    const auto sceneItem = Ufe::Hierarchy::createItem(stagePath);
+    if (!sceneItem) {
+        return;
+    }
+
+    if (const auto host = getExplorerHost()) {
+        // Close the stage's tab if opened.
+        host->closeExplorer(sceneItem->path());
+    }
+}
+
+void USDExplorer::SetShowInactivePrims(bool showInactive)
+{
+    const auto it = std::find_if(
+        childFilter.begin(), childFilter.end(), [](const Ufe::ChildFilterFlag& filter) {
+            return filter.name == filterNames;
+        });
+    if (it == childFilter.end()) {
+        DbgAssert(0 && _T("Usd Ufe inactive child filter is not initalized."));
+        return;
+    }
+
+    it->value = showInactive;
+
+    for (const auto& explorer : AllStageExplorers()) {
+        explorer->setChildFilter(childFilter);
+    }
+}
+
+bool USDExplorer::ShowInactivePrims() const
+{
+    const auto it = std::find_if(
+        childFilter.begin(), childFilter.end(), [](const Ufe::ChildFilterFlag& filter) {
+            return filter.name == filterNames;
+        });
+    if (it == childFilter.end()) {
+        DbgAssert(0 && _T("Usd Ufe inactive child filter is not initalized."));
+        return false;
+    }
+    return it->value;
+}
+
+bool USDExplorer::IsAutoExpandedToSelection() { return autoExpandToSelection; }
+
+void USDExplorer::SetAutoExpandedToSelection(bool autoExpandToSelection)
+{
+    for (const auto& explorer : AllStageExplorers()) {
+        explorer->setAutoExpandedToSelection(autoExpandToSelection);
+    }
+
+    this->autoExpandToSelection = autoExpandToSelection;
+}
+
+USDExplorer::USDExplorer()
+{
+    // Initialize the child filter to show inactive prims by default.
+    const auto handler = Ufe::RunTimeMgr::instance().hierarchyHandler(UsdUfe::getUsdRunTimeId());
+    childFilter = handler->childFilter();
+
+    treeViewColumnsState.push_back({ 1 /* VisColumn */, false });
+    treeViewColumnsState.push_back({ 2 /* TypeColumn */, false });
+    treeViewColumnsState.push_back({ 3 /* KindColumn */, true });
+    treeViewColumnsState.push_back({ 4 /* PurposeColumn */, true });
+}
+
+std::vector<UfeUi::Explorer*> USDExplorer::AllStageExplorers()
+{
+    std::vector<UfeUi::Explorer*> results;
+    if (const auto host = getExplorerHost()) {
+        results = host->explorers();
+    }
+    return results;
+}
+
+UfeUi::Explorer* USDExplorer::ActiveStageExplorer()
+{
+    if (const auto host = getExplorerHost()) {
+        return host->activeExplorer();
+    }
+    return nullptr;
+}
+
+bool USDExplorer::IsColumnHidden(int visualIdx)
+{
+    const TreeViewColumsState::iterator foundItem = std::find_if(
+        treeViewColumnsState.begin(),
+        treeViewColumnsState.end(),
+        [visualIdx](const TreeViewColumn& item) { return item.visualIdx == visualIdx; });
+    if (foundItem == treeViewColumnsState.end()) {
+        return false;
+    }
+    return foundItem->hidden;
+}
+
+bool USDExplorer::ToggleColumnHiddenState(int visualIdx)
+{
+    const auto state = std::find_if(
+        treeViewColumnsState.begin(),
+        treeViewColumnsState.end(),
+        [visualIdx](const TreeViewColumn& item) { return item.visualIdx == visualIdx; });
+
+    if (state == treeViewColumnsState.end())
+        return false;
+
+    state->hidden = !state->hidden; // toggle the state of the column
+
+    if (state->hidden) // just about to be hidden - so save the width...
+    {
+        if (auto explorer = ActiveStageExplorer()) {
+            auto header = explorer->treeView()->header();
+            bool was_last_section = false;
+            if (header->stretchLastSection()) {
+                was_last_section = true;
+                for (int i = visualIdx + 1; i < header->count(); ++i) {
+                    if (!header->isSectionHidden(i)) {
+                        was_last_section = false;
+                        break;
+                    }
+                }
+            }
+            if (!was_last_section) {
+                state->manualColumnWidth = header->sectionSize(visualIdx);
+            }
+        }
+    }
+
+    for (const auto& explorer : AllStageExplorers()) {
+        explorer->setColumnState(visualIdx, state->hidden);
+
+        if (!state->hidden) // has been shown again - so restore the width...
+        {
+            auto tree_view = explorer->treeView();
+            if (state->manualColumnWidth == -1) {
+                tree_view->resizeColumnToContents(visualIdx);
+            }
+        }
+    }
+    return state->hidden;
+}
+
+int USDExplorer::GetManualColumnWidth(int visualIdx) const
+{
+    for (const auto& state : treeViewColumnsState) {
+        if (state.visualIdx == visualIdx) {
+            return state.manualColumnWidth;
+        }
+    }
+    return -1;
+}
diff --git a/src/MaxUsdObjects/USDExplorer.h b/src/MaxUsdObjects/USDExplorer.h
new file mode 100644
index 0000000..30d5bcc
--- /dev/null
+++ b/src/MaxUsdObjects/USDExplorer.h
@@ -0,0 +1,108 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <UFEUI/Views/explorer.h>
+
+#include <ufe/hierarchy.h>
+
+class USDStageObject;
+
+class USDExplorer
+{
+public:
+    static USDExplorer* Instance();
+
+    /**
+     * \brief Opens the USDExplorer.
+     */
+    void Open();
+
+    /**
+     * \brief Closes the USDExplorer.
+     */
+    void Close();
+
+    /**
+     * \brief Opens the given stage in the USD Explorer UI.
+     * \param stage The USD Stage object to open in the USD explorer UI.
+     */
+    void OpenStage(USDStageObject* stageObject);
+
+    /**
+     * \brief Closes the given stage in the USD Explorer UI.
+     * \param stage The USD Stage object to close in the USD explorer UI.
+     */
+    void CloseStage(USDStageObject* stageObject);
+
+    /**
+     * \brief Sets whether to show inactive prims in the treeview.
+     * \param showInactive True to show inactive prims.
+     */
+    void SetShowInactivePrims(bool showInactive);
+
+    /**
+     * \brief Gets whether inactive prims are shown in the treeview.
+     * \return True if inactive prims are shown.
+     */
+    bool ShowInactivePrims() const;
+
+    /**
+     * \brief If enabled, the explorer will make sure that the current selection is visible
+     * by auto expanding ancestors of selected items, and scrolling to the first item in the
+     * selection when it changes.
+     * \return True if auto-expansion is enabled, false otherwise.
+     */
+    bool IsAutoExpandedToSelection();
+
+    /**
+     * \brief Sets selection auto-expansion. If enabled, the explorer will make sure that the
+     * current selection is visible by auto expanding ancestors of selected items, and scrolling
+     * to the first item in the selection when it changes.
+     * \param autoExpandToSelection If true, auto-expansion is enabled.
+     */
+    void SetAutoExpandedToSelection(bool autoExpandToSelection);
+
+    // Delete the copy/move constructors assignment operators.
+    USDExplorer(const USDExplorer&) = delete;
+    USDExplorer& operator=(const USDExplorer&) = delete;
+    USDExplorer(USDExplorer&&) = delete;
+    USDExplorer& operator=(USDExplorer&&) = delete;
+
+    bool IsColumnHidden(int visualIdx);
+    bool ToggleColumnHiddenState(int visualIdx);
+
+    int GetManualColumnWidth(int visualIdx) const;
+
+private:
+    USDExplorer();
+
+    static std::vector<UfeUi::Explorer*> AllStageExplorers();
+    static UfeUi::Explorer*              ActiveStageExplorer();
+
+    static std::unique_ptr<USDExplorer> instance;
+
+    Ufe::Hierarchy::ChildFilter childFilter;
+    bool                        autoExpandToSelection = false;
+
+    struct TreeViewColumn
+    {
+        int  visualIdx;
+        bool hidden;
+        int  manualColumnWidth = -1;
+    };
+    typedef std::vector<TreeViewColumn> TreeViewColumsState;
+    TreeViewColumsState                 treeViewColumnsState;
+};
diff --git a/src/MaxUsdObjects/USDPickingRenderer.cpp b/src/MaxUsdObjects/USDPickingRenderer.cpp
new file mode 100644
index 0000000..ad5a242
--- /dev/null
+++ b/src/MaxUsdObjects/USDPickingRenderer.cpp
@@ -0,0 +1,435 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#define _USE_MATH_DEFINES
+#define _MATH_DEFINES_DEFINED
+
+#include "USDPickingRenderer.h"
+
+#include <MaxUsd/MaxUSDAPI.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usdImaging/usdImaging/delegate.h>
+#include <pxr/usdImaging/usdImagingGL/engine.h>
+#include <pxr/usdImaging/usdImagingGL/renderParams.h>
+
+#include <QtGui/QOffscreenSurface>
+#include <QtWidgets/QApplication>
+#include <maxapi.h>
+#include <notify.h>
+#ifdef IS_MAX2025_OR_GREATER
+#include <QtOpenGL/QOpenGLDebugLogger>
+#else
+#include <QtGui/QOpenGLDebugLogger>
+#endif
+#include <QtGui/QOpenGLContext>
+#include <QtGui/QOpenGLFunctions>
+
+// Set to true to enable OpenGL logging.
+static const bool openGlLogging = false;
+
+namespace {
+QScopedPointer<QOpenGLContext>    glContext;
+QScopedPointer<QOffscreenSurface> glSurface;
+bool                              meetsMinimumRequirements = false;
+const auto                        translationContext = "USDPickingRenderer";
+} // namespace
+
+USDPickingRenderer::USDPickingRenderer(const pxr::UsdStageWeakPtr stage)
+    : stage(stage)
+{
+    if (!glSurface || !glSurface->isValid()) {
+        QSurfaceFormat format;
+        format.setDepthBufferSize(32);
+        format.setMajorVersion(4);
+        format.setMinorVersion(5);
+        format.setProfile(QSurfaceFormat::CoreProfile);
+        format.setOption(QSurfaceFormat::DebugContext);
+
+        glContext.reset(new QOpenGLContext());
+        glContext->setFormat(format);
+        glContext->create();
+
+        glSurface.reset(new QOffscreenSurface());
+        glSurface->setFormat(format);
+
+        glSurface->create();
+
+        if (openGlLogging) {
+            glContext->makeCurrent(glSurface.get());
+
+            auto logger = new QOpenGLDebugLogger(glContext.get());
+
+            logger->connect(
+                logger, &QOpenGLDebugLogger::messageLogged, [](const QOpenGLDebugMessage& message) {
+                    qInfo() << message;
+                });
+
+            if (logger->initialize()) {
+                std::cout << "OpenGL logger initialized" << std::endl;
+                logger->startLogging(QOpenGLDebugLogger::SynchronousLogging);
+                logger->enableMessages();
+                // Disable NVidia perforamce spam "APISource", 131185,
+                // 		"Buffer detailed info: Buffer object 1 (bound to
+                // GL_ARRAY_BUFFER_ARB, usage hint is " 		"GL_STATIC_DRAW) will use VIDEO memory as
+                // the source for buffer object operations.", 		"NotificationSeverity", "OtherType"
+
+                logger->disableMessages(QVector<GLuint> { 131185 });
+            } else {
+                std::cout << "!!!OpenGL logger not initialized!!!" << std::endl;
+            }
+
+            glContext->doneCurrent();
+        }
+    }
+
+    glContext->makeCurrent(glSurface.get());
+
+    // On first execution, try to detect missing OpenGL requirements.
+    // Inspired from pxr::HgiGLMeetsMinimumRequirements()
+    static std::once_flag checkOpenGlVersionOnce;
+    std::call_once(checkOpenGlVersionOnce, []() {
+        std::string openGlVersionStr = "None";
+        if (!glContext.isNull() && glContext->isValid()) {
+            openGlVersionStr
+                = reinterpret_cast<const char*>(glContext->functions()->glGetString(GL_VERSION));
+
+            int         glVersion = 0;
+            const char* dot = strchr(openGlVersionStr.c_str(), '.');
+            if ((dot && dot != openGlVersionStr)) {
+                // GL_VERSION = "4.5.0 <vendor> <version>"
+                //              "4.1 <vendor-os-ver> <version>"
+                //              "4.1 <vendor-os-ver>"
+                int major = std::max(0, std::min(9, *(dot - 1) - '0'));
+                int minor = std::max(0, std::min(9, *(dot + 1) - '0'));
+                glVersion = major * 100 + minor * 10;
+            }
+            meetsMinimumRequirements = (glVersion >= 450);
+        }
+
+        if (!meetsMinimumRequirements) {
+            // Picking will be disable completely, warn the user. It will still be possible to
+            // select the object via the icon.
+            auto title = QApplication::translate(
+                translationContext, "Missing Requirements for USD in 3dsMax.");
+            auto msg = QApplication::translate(
+                           translationContext,
+                           "Picking the USD stage geometry in the viewport has been disabled "
+                           "(picking via the USD stage icon "
+                           "is still possible). OpenGL version 4.5 is required and version \"%1\" "
+                           "has been detected. Try "
+                           "updating your video card drivers and reloading 3ds Max. Note that "
+                           "overriding the QT_OPENGL environment "
+                           "variable can interfere with OpenGL support.")
+                           .arg(QString::fromStdString(openGlVersionStr));
+            GetCOREInterface()->Log()->LogEntry(
+                SYSLOG_ERROR, TRUE, title.toStdWString().c_str(), msg.toStdWString().c_str());
+        }
+    });
+
+    glContext->doneCurrent();
+
+    RegisterNotification(&USDPickingRenderer::ResetUSDRenderer, this, NOTIFY_POST_IMPORT);
+    RegisterNotification(&USDPickingRenderer::ResetUSDRenderer, this, NOTIFY_POST_SCENE_RESET);
+}
+
+USDPickingRenderer::~USDPickingRenderer()
+{
+    glContext->makeCurrent(glSurface.get());
+    usdImagingRenderer.reset();
+    glContext->doneCurrent();
+
+    UnRegisterNotification(&USDPickingRenderer::ResetUSDRenderer, this, NOTIFY_POST_IMPORT);
+    UnRegisterNotification(&USDPickingRenderer::ResetUSDRenderer, this, NOTIFY_POST_SCENE_RESET);
+}
+
+std::vector<USDPickingRenderer::HitInfo> USDPickingRenderer::Pick(
+    const pxr::GfMatrix4d&                 stageTransform,
+    const MaxSDK::Graphics::CameraPtr&     camera,
+    const MaxSDK::Graphics::RectangleSize& windowSize,
+    const HitRegion&                       hitRegion,
+    pxr::UsdImagingGLDrawMode              drawMode,
+    bool                                   displayProxy,
+    bool                                   displayGuide,
+    bool                                   displayRender,
+    const pxr::TfToken&                    pickTarget,
+    const pxr::UsdTimeCode&                time,
+    const pxr::SdfPathVector&              excludedPaths)
+{
+    if (!meetsMinimumRequirements) {
+        return {};
+    }
+
+    const auto glContextGuard = MaxUsd::MakeScopeGuard(
+        []() { glContext->makeCurrent(glSurface.get()); }, []() { glContext->doneCurrent(); });
+
+    if (invalidateRenderer) {
+        usdImagingRenderer.reset(new MaxUsdImagingGLEngine());
+        invalidateRenderer = false;
+    }
+
+    // Setup render parameters for picking. Disable most things, as not required.
+    pxr::UsdImagingGLRenderParams params;
+    params.frame = time;
+    params.drawMode = drawMode;
+    params.enableSceneMaterials = false;
+    params.enableLighting = false;
+    params.enableSceneLights = false;
+
+    params.showGuides = displayGuide;
+    params.showProxy = displayProxy;
+    params.showRender = displayRender;
+
+    usdImagingRenderer->SetRootTransform(stageTransform);
+    usdImagingRenderer->PrepareBatch(stage->GetPseudoRoot(), params);
+
+    pxr::GfMatrix4d ovm, opm;
+    ovm = MaxUsd::ToUsd(camera->GetViewMatrix());
+    opm = MaxUsd::ToUsd(camera->GetProjectionMatrix());
+
+    Point2 pickWindowSize;
+    Point2 pickPosition;
+
+    bool areaHitTesting = false;
+
+    // Figure out the pick window size and the pick position.
+    // Both are stored as percentages of the window size.
+    switch (hitRegion.type) {
+    case POINT_RGN: {
+        // 3x3 pixels.
+        double pixelSize = 1.0 + hitRegion.epsilon * 2;
+        pickWindowSize = Point2(pixelSize / windowSize.cx, pixelSize / windowSize.cy);
+        pickPosition = Point2(
+            double(hitRegion.pt.x) / windowSize.cx, double(hitRegion.pt.y) / windowSize.cy);
+        break;
+    }
+    case RECT_RGN: {
+        const auto sizeX = double(hitRegion.rect.right - hitRegion.rect.left) / windowSize.cx;
+        const auto sizeY = double(hitRegion.rect.bottom - hitRegion.rect.top) / windowSize.cy;
+        pickWindowSize = Point2(sizeX, sizeY);
+        const auto xCenter
+            = double(hitRegion.rect.left + hitRegion.rect.right) / 2.0 / windowSize.cx;
+        const auto yCenter
+            = double(hitRegion.rect.top + hitRegion.rect.bottom) / 2.0 / windowSize.cy;
+        pickPosition = Point2(xCenter, yCenter);
+        areaHitTesting = true;
+        break;
+    }
+    case CIRCLE_RGN: {
+        // We do not properly support circle selection - create an area fully encapsulating the
+        // circle...
+        const auto sizeX = double(hitRegion.circle.r * 2) / windowSize.cx;
+        const auto sizeY = double(hitRegion.circle.r * 2) / windowSize.cy;
+        pickWindowSize = Point2(sizeX, sizeY);
+        const auto xCenter = double(hitRegion.circle.x) / windowSize.cx;
+        const auto yCenter = double(hitRegion.circle.y) / windowSize.cy;
+        pickPosition = Point2(xCenter, yCenter);
+        areaHitTesting = true;
+        break;
+    }
+    case FENCE_RGN: {
+        long maxX = LONG_MIN;
+        long minX = LONG_MAX;
+        long maxY = LONG_MIN;
+        long minY = LONG_MAX;
+        // We do not properly support fence selection - create an area fully encapsulating the
+        // fence... In fence regions, epsilon is filled with the number of points.
+        for (int i = 0; i < hitRegion.epsilon; i++) {
+            const auto x = hitRegion.pts[i].x;
+            const auto y = hitRegion.pts[i].y;
+            maxX = std::max(x, maxX);
+            minX = std::min(x, minX);
+            maxY = std::max(y, maxY);
+            minY = std::min(y, minY);
+        }
+
+        // The area size, expressed as a percentage of the entire window size.
+        const auto sizeX = double(maxX - minX) / windowSize.cx;
+        const auto sizeY = double(maxY - minY) / windowSize.cy;
+        pickWindowSize = Point2(sizeX, sizeY);
+
+        // Pick position is the center of the area (again, percentage relative to the full window).
+        const auto xCenter = double(minX + maxX) / 2.0 / windowSize.cx;
+        const auto yCenter = double(minY + maxY) / 2.0 / windowSize.cy;
+        pickPosition = Point2(xCenter, yCenter);
+        areaHitTesting = true;
+        break;
+    }
+    }
+
+    // Change pickPosition from 0..1 to -1..1
+    pickPosition *= 2.0;
+    pickPosition -= Point2(1.0, 1.0);
+
+    // Tweak projection matrix so it restrict frustum to the box given in parameter
+    // Basically rescale x and y so the viewport is filled with the restricted view
+    // applying the offset
+    // Should also work with non-symmetric frustum, not tested thus.
+    opm[0][0] /= pickWindowSize[0];
+    opm[1][1] /= pickWindowSize[1];
+    // Account for orthographic or perspective projection...
+    if (camera->IsPerspective()) {
+        opm[2][0] += pickPosition[0] / pickWindowSize[0];
+        opm[2][1] -= pickPosition[1] / pickWindowSize[1];
+    } else {
+        opm[3][0] -= pickPosition[0] / pickWindowSize[0];
+        opm[3][1] += pickPosition[1] / pickWindowSize[1];
+    }
+
+    usdImagingRenderer->SetExcludePaths(excludedPaths);
+
+    std::vector<HitInfo> hitInfos;
+
+    if (!areaHitTesting && pickTarget == pxr::HdxPickTokens->pickPrimsAndInstances) {
+        pxr::GfVec3d hitPoint;
+        pxr::GfVec3d worldSpaceNormalPoint;
+        pxr::SdfPath primPath;
+        pxr::SdfPath instancerPath;
+        int          instanceIndex;
+
+        pxr::HdInstancerContext instancerContext;
+        if (usdImagingRenderer->TestIntersection(
+                ovm,
+                opm,
+                stage->GetPseudoRoot(),
+                params,
+                &hitPoint,
+                &worldSpaceNormalPoint,
+                &primPath,
+                &instancerPath,
+                &instanceIndex,
+                &instancerContext)) {
+            if (!instancerContext.empty()) {
+                instanceIndex = instancerContext.front().second;
+            }
+            hitInfos.push_back({ primPath,
+                                 instancerPath,
+                                 instanceIndex,
+                                 Point3(hitPoint[0], hitPoint[1], hitPoint[2]) });
+        }
+    } else {
+        pxr::HdxPickHitVector hits;
+        usdImagingRenderer->TestAreaIntersection(
+            ovm, opm, stage->GetPseudoRoot(), params, pickTarget, hits);
+        hitInfos.reserve(hits.size());
+        for (const auto& hit : hits) {
+            hitInfos.push_back({ hit.objectId,
+                                 hit.instancerId,
+                                 hit.instanceIndex,
+                                 Point3(
+                                     hit.worldSpaceHitPoint[0],
+                                     hit.worldSpaceHitPoint[1],
+                                     hit.worldSpaceHitPoint[2]) });
+        }
+    }
+
+    return hitInfos;
+}
+
+void USDPickingRenderer::InvalidateRenderer()
+{
+    // Store that we need to invalidate render on next frame
+    invalidateRenderer = true;
+}
+
+bool USDPickingRenderer::MaxUsdImagingGLEngine::TestAreaIntersection(
+    const pxr::GfMatrix4d&               viewMatrix,
+    const pxr::GfMatrix4d&               projectionMatrix,
+    const pxr::UsdPrim&                  root,
+    const pxr::UsdImagingGLRenderParams& params,
+    const pxr::TfToken&                  pickTarget,
+    pxr::HdxPickHitVector&               outHits)
+{
+    if (ARCH_UNLIKELY(!_renderDelegate)) {
+        return false;
+    }
+
+    PrepareBatch(root, params);
+
+    // Below code is heavily inspired from UsdImagingGLEngine::TestIntersection().
+
+    const pxr::SdfPathVector paths
+        = { root.GetPath().ReplacePrefix(pxr::SdfPath::AbsoluteRootPath(), _sceneDelegateId) };
+
+    _UpdateHydraCollection(&_intersectCollection, paths, params);
+    _PrepareRender(params);
+
+    pxr::HdxPickTaskContextParams pickParams;
+    pickParams.pickTarget = pickTarget;
+
+    const auto resolveMode = pickTarget == pxr::HdxPickTokens->pickPrimsAndInstances
+        ? pxr::HdxPickTokens->resolveUnique
+        : pxr::HdxPickTokens->resolveNearestToCenter;
+
+    pickParams.resolveMode = resolveMode;
+    pickParams.doUnpickablesOcclude = false;
+    pickParams.viewMatrix = viewMatrix;
+    pickParams.projectionMatrix = projectionMatrix;
+    pickParams.clipPlanes = params.clipPlanes;
+
+    // Need a special collection when picking points as the points repr is not generally used.
+    if (pickTarget == pxr::HdxPickTokens->pickPoints) {
+        pickParams.collection = _pointSnappingCollection;
+    } else {
+        pickParams.collection = _intersectCollection;
+    }
+
+    pickParams.outHits = &outHits;
+    const pxr::VtValue vtPickParams(pickParams);
+
+    _GetHdEngine()->SetTaskContextData(pxr::HdxPickTokens->pickParams, vtPickParams);
+    _Execute(params, _taskController->GetPickingTasks());
+
+    if (outHits.empty()) {
+        return false;
+    }
+
+    const auto sceneDelegate = _GetSceneDelegate();
+
+    // Adjust hit data to have proper prim paths as object IDs.
+    for (auto& hit : outHits) {
+        pxr::HdInstancerContext instancerContext;
+        hit.objectId
+            = sceneDelegate->GetScenePrimPath(hit.objectId, hit.instanceIndex, &instancerContext);
+        // Map the prototype instance index to the instancer index.
+        if (!instancerContext.empty()) {
+            hit.instanceIndex = instancerContext.front().second;
+        }
+        hit.instancerId = sceneDelegate->ConvertIndexPathToCachePath(hit.instancerId)
+                              .GetAbsoluteRootOrPrimPath();
+    }
+    return true;
+}
+
+void USDPickingRenderer::MaxUsdImagingGLEngine::SetExcludePaths(
+    const pxr::SdfPathVector& excludePaths)
+{
+    _intersectCollection.SetExcludePaths(excludePaths);
+    _pointSnappingCollection.SetExcludePaths(excludePaths);
+}
+
+void USDPickingRenderer::ResetUSDRenderer(void* param, NotifyInfo* info)
+{
+    static_cast<USDPickingRenderer*>(param)->InvalidateRenderer();
+}
+
+void USDPickingRenderer::MessageLogged(const QOpenGLDebugMessage& message)
+{
+    std::cout << message.message().toStdString() << std::endl;
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/USDPickingRenderer.h b/src/MaxUsdObjects/USDPickingRenderer.h
new file mode 100644
index 0000000..10417b1
--- /dev/null
+++ b/src/MaxUsdObjects/USDPickingRenderer.h
@@ -0,0 +1,136 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/imaging/hdx/pickTask.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usdImaging/usdImagingGL/engine.h>
+
+#include <Graphics/ICamera.h>
+
+#include <notify.h>
+
+class HitRegion;
+class QOpenGLDebugMessage;
+
+/**
+ * \brief This class enables picking within a USD Stage leveraging the UsdImagingGLEngine.
+ */
+class USDPickingRenderer
+{
+public:
+    struct HitInfo
+    {
+        pxr::SdfPath primPath;
+        pxr::SdfPath instancerPath;
+        int          instanceIndex = 0;
+        Point3       hitPoint;
+    };
+
+    /**
+     * \brief Constructor.
+     * \param stage The stage that will be considered in the picking operation.
+     */
+    USDPickingRenderer(const pxr::UsdStageWeakPtr stage);
+
+    /**
+     * \brief Destructor
+     */
+    ~USDPickingRenderer();
+
+    /**
+     * \brief Perform's hit testing.
+     * \param stageTransform Root transform to apply to the stage.
+     * \param camera Reference to the max camera used for picking.
+     * \param hitRegion The 3dsMax hit region - describes the area to use for hit testing.
+     * We only really support point and rectangle selection (no deep selection). Other modes,
+     * like lasso, circle, etc. Are approximated using the encapsulating rectangles.
+     * \param windowSize Window information.
+     * \param wireframe Whether we are picking in a wireframe viewport or not.
+     * \param displayProxy Whether or not the proxy purpose should be considered.
+     * \param displayGuide Whether or not the guide purpose should be considered.
+     * \param displayRender Whether or not the render purpose should be considered.
+     * \param pickTarget What is being picked (prims, points, edges, etc..)
+     * \param time Time used to perform hit testing operation.
+     * \return Hit information. Whether or not a prim was picked, and a what distance.
+     */
+    std::vector<HitInfo> Pick(
+        const pxr::GfMatrix4d&                 stageTransform,
+        const MaxSDK::Graphics::CameraPtr&     camera,
+        const MaxSDK::Graphics::RectangleSize& windowSize,
+        const HitRegion&                       hitRegion,
+        pxr::UsdImagingGLDrawMode              drawMode,
+        bool                                   displayProxy,
+        bool                                   displayGuide,
+        bool                                   displayRender,
+        const pxr::TfToken&                    pickTarget,
+        const pxr::UsdTimeCode&                time,
+        const pxr::SdfPathVector&              excludedPaths);
+
+    /**
+     * \brief Invalidates the internal renderer used for picking.
+     */
+    void InvalidateRenderer();
+
+private:
+    /**
+     * \brief Derived Usd imaging engine. Adds support for area selection of multiple prims.
+     * Note : this is not "deep selection", i.e. only visible prims can be hit.
+     */
+    class MaxUsdImagingGLEngine : public pxr::UsdImagingGLEngine
+    {
+    public:
+        bool TestAreaIntersection(
+            const pxr::GfMatrix4d&               viewMatrix,
+            const pxr::GfMatrix4d&               projectionMatrix,
+            const pxr::UsdPrim&                  root,
+            const pxr::UsdImagingGLRenderParams& params,
+            const pxr::TfToken&                  pickTarget,
+            pxr::HdxPickHitVector&               outHits);
+
+        void SetExcludePaths(const pxr::SdfPathVector& excludePaths);
+
+    protected:
+        // Need a dedicated render collection for point snapping to use the point representation.
+        pxr::HdRprimCollection _pointSnappingCollection { pxr::HdTokens->geometry,
+                                                          pxr::HdReprSelector(
+                                                              pxr::HdReprTokens->refined,
+                                                              pxr::TfToken(),
+                                                              pxr::HdReprTokens->points),
+                                                          pxr::SdfPath::AbsoluteRootPath() };
+    };
+
+    /**
+     * \brief Responding to a request to invalidate the render.
+     * \param param Notification param, carries the USDPickingRenderer.
+     * \param info Notification info. Not used.
+     */
+    static void ResetUSDRenderer(void* param, NotifyInfo* info);
+    /**
+     * \brief QOpenGl debug message logging.
+     * \param message The message to log.
+     */
+    void MessageLogged(const QOpenGLDebugMessage& message);
+
+    /// The stage being picked.
+    pxr::UsdStageWeakPtr stage;
+    /// Window size info.
+    std::size_t width, height;
+    /// The GL renderer used for picking.
+    std::unique_ptr<MaxUsdImagingGLEngine> usdImagingRenderer;
+    /// Flag for invalidating the renderer.
+    bool invalidateRenderer = true;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/UsdAssetAccessor.h b/src/MaxUsdObjects/UsdAssetAccessor.h
new file mode 100644
index 0000000..9238eed
--- /dev/null
+++ b/src/MaxUsdObjects/UsdAssetAccessor.h
@@ -0,0 +1,64 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "Objects/USDStageObject.h"
+
+#include <assetmanagement/IAssetAccessor.h>
+
+class USDAssetAccessor : public IAssetAccessor
+{
+public:
+    USDAssetAccessor(USDStageObject* refHolder);
+    ~USDAssetAccessor();
+
+    virtual MaxSDK::AssetManagement::AssetUser GetAsset() const;
+    virtual bool SetAsset(const MaxSDK::AssetManagement::AssetUser& aNewAssetUser);
+    virtual MaxSDK::AssetManagement::AssetType GetAssetType() const;
+    virtual const MCHAR*                       GetAssetDesc() const;
+    virtual const MCHAR*                       GetAssetClientDesc() const;
+
+private:
+    USDStageObject* usdObject;
+};
+
+class USDItemPostLoadCB : public PostLoadCallback
+{
+public:
+    USDItemPostLoadCB(USDStageObject* usdStageObject) { usdObject = usdStageObject; }
+    void proc(ILoad* iload)
+    {
+        UNREFERENCED_PARAMETER(iload);
+        using namespace MaxSDK::AssetManagement;
+        if (nullptr == usdObject) {
+            return;
+        }
+
+        IParamBlock2* pblock = usdObject->GetParamBlock(0);
+        AssetUser     assetFile(
+            pblock ? pblock->GetAssetUser(PBParameterIds::StageFile)
+                   : MaxSDK::AssetManagement::AssetUser());
+        MSTR resolvedPath;
+        if (pblock && assetFile.GetFullFilePath(resolvedPath)) {
+            pblock->SetValue(PBParameterIds::StageFile, 0, resolvedPath.ToMCHAR());
+        }
+        usdObject->UpdateViewportStageIcon();
+        usdObject->LoadUSDStage();
+        delete this;
+    }
+
+private:
+    USDStageObject* usdObject;
+};
diff --git a/src/MaxUsdObjects/VersionOverrides.h b/src/MaxUsdObjects/VersionOverrides.h
new file mode 100644
index 0000000..1d864e1
--- /dev/null
+++ b/src/MaxUsdObjects/VersionOverrides.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Definitions specific to the present .dll
+#define USD_COMPONENT_BINARY_INTERNAL_NAME      "USDComponent\0"
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "MaxUsdObjects.dlo\0"
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION   "3ds Max USD plugin\0"
diff --git a/src/MaxUsdObjects/Views/UsdCameraObjectRollup.cpp b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.cpp
new file mode 100644
index 0000000..7a2a8fa
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.cpp
@@ -0,0 +1,150 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdCameraObjectRollup.h"
+
+#include "ui_UsdCameraObjectRollup.h"
+
+#include <MaxUsdObjects/Objects/USDCameraObject.h>
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QmaxToolClips.h>
+#include <maxscript/maxscript.h>
+
+#include <iparamb2.h>
+#include <maxicon.h>
+
+UsdCameraObjectRollup::UsdCameraObjectRollup(ReferenceMaker& owner, IParamBlock2& paramBlock)
+    : ui(new Ui::UsdCameraObjectRollup)
+{
+    SetParamBlock(&owner, &paramBlock);
+    cameraObject = static_cast<USDCameraObject*>(&owner);
+    ui->setupUi(this);
+
+    ui->PathLabel->setMinimumHeight(MaxSDK::UIScaled(20));
+    ui->PathLabel->setAlignment({ Qt::AlignHCenter | Qt::AlignVCenter });
+    // 3dsMax tooltip styling doesn't handle long strings very well.
+    MaxSDK::QmaxToolClips::disableToolClip(ui->PathLabel);
+}
+
+void UsdCameraObjectRollup::SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    cameraObject = static_cast<USDCameraObject*>(owner);
+}
+
+void UsdCameraObjectRollup::UpdateUI(const TimeValue t)
+{
+    static QString NA = QObject::tr("N/A");
+
+    auto fillWithNA = [this]() {
+        ui->PathLabel->setText(NA);
+        ui->ProjectionValue->setText(NA);
+        ui->HorizontalApertureValue->setText(NA);
+        ui->HorizontalApertureOffsetValue->setText(NA);
+        ui->VerticalApertureValue->setText(NA);
+        ui->VerticalApertureOffsetValue->setText(NA);
+        ui->FocalLengthValue->setText(NA);
+        ui->ClippingNearValue->setText(NA);
+        ui->ClippingFarValue->setText(NA);
+        ui->FStopValue->setText(NA);
+        ui->FocusDistanceValue->setText(NA);
+        ui->StereoRoleValue->setText(NA);
+        ui->ShutterOpenValue->setText(NA);
+        ui->ShutterCloseValue->setText(NA);
+        ui->ExposureValue->setText(NA);
+    };
+
+    INode*   stageNode = nullptr;
+    Interval valid = FOREVER;
+    paramBlock->GetValue(
+        USDCameraParams_USDStage, GetCOREInterface()->GetTime(), stageNode, valid, 0);
+    if (!stageNode) {
+        fillWithNA();
+        return;
+    }
+
+    const auto stageObject = dynamic_cast<USDStageObject*>(stageNode->GetObjectRef());
+    if (!stageObject) {
+        fillWithNA();
+        return;
+    }
+
+    const auto timeCode = stageObject->ResolveRenderTimeCode(t);
+
+    const auto usdCamera = cameraObject->GetUsdCamera();
+    const auto prim = usdCamera.GetPrim();
+    if (!prim.IsValid()) {
+        fillWithNA();
+        return;
+    }
+
+    const auto pathStr = QString::fromStdString(prim.GetPath().GetString());
+    ui->PathLabel->setText(pathStr); // Might be elided on long path, so also set as tooltip.
+    ui->PathLabel->setToolTip(pathStr);
+
+    pxr::TfToken projection;
+    usdCamera.GetProjectionAttr().Get(&projection, timeCode);
+    ui->ProjectionValue->setText(QString::fromStdString(projection.GetString()));
+
+    float horizontalAperture = 0.f;
+    usdCamera.GetHorizontalApertureAttr().Get(&horizontalAperture, timeCode);
+    ui->HorizontalApertureValue->setText(QString::number(horizontalAperture));
+
+    float horizontalApertureOffset = 0.f;
+    usdCamera.GetHorizontalApertureOffsetAttr().Get(&horizontalApertureOffset, timeCode);
+    ui->HorizontalApertureOffsetValue->setText(QString::number(horizontalApertureOffset));
+
+    float verticalAperture = 0.f;
+    usdCamera.GetVerticalApertureAttr().Get(&verticalAperture, timeCode);
+    ui->VerticalApertureValue->setText(QString::number(verticalAperture));
+
+    float verticalApertureOffset = 0.f;
+    usdCamera.GetVerticalApertureOffsetAttr().Get(&verticalApertureOffset, timeCode);
+    ui->VerticalApertureOffsetValue->setText(QString::number(verticalApertureOffset));
+
+    float focalLength = 0.f;
+    usdCamera.GetFocalLengthAttr().Get(&focalLength, timeCode);
+    ui->FocalLengthValue->setText(QString::number(focalLength));
+
+    pxr::GfVec2f clipRange;
+    usdCamera.GetClippingRangeAttr().Get(&clipRange, timeCode);
+    ui->ClippingNearValue->setText(QString::number(clipRange[0], 'f', 2));
+    ui->ClippingFarValue->setText(QString::number(clipRange[1], 'f', 2));
+
+    float fStop = 0.f;
+    usdCamera.GetFStopAttr().Get(&fStop, timeCode);
+    ui->FStopValue->setText(QString::number(fStop));
+
+    float focusDistance = 0.f;
+    usdCamera.GetFocusDistanceAttr().Get(&focusDistance, timeCode);
+    ui->FocusDistanceValue->setText(QString::number(focusDistance));
+
+    pxr::TfToken stereoRole;
+    usdCamera.GetStereoRoleAttr().Get(&stereoRole, timeCode);
+    ui->StereoRoleValue->setText(QString::fromStdString(stereoRole.GetString()));
+
+    float shutterOpen = 0.f;
+    usdCamera.GetShutterOpenAttr().Get(&shutterOpen, timeCode);
+    ui->ShutterOpenValue->setText(QString::number(shutterOpen));
+
+    float shutterClose = 0.f;
+    usdCamera.GetShutterCloseAttr().Get(&shutterClose, timeCode);
+    ui->ShutterCloseValue->setText(QString::number(shutterClose));
+
+    float exposure = 0.f;
+    usdCamera.GetExposureAttr().Get(&exposure, timeCode);
+    ui->ExposureValue->setText(QString::number(exposure));
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdCameraObjectRollup.h b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.h
new file mode 100644
index 0000000..54bcc04
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.h
@@ -0,0 +1,48 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDCameraObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdCameraObjectRollup;
+}
+
+class IParamBlock2;
+
+class UsdCameraObjectRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdCameraObjectRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdCameraObjectRollup() = default;
+
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    // Abstract in older max versions, but nothing for us to do in it.
+    void UpdateParameterUI(const TimeValue, const ParamID, const int) override {};
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdCameraObjectRollup> ui { std::make_unique<Ui::UsdCameraObjectRollup>() };
+    // The camera we are setting up from this UI.
+    USDCameraObject* cameraObject = nullptr;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdCameraObjectRollup.ui b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.ui
new file mode 100644
index 0000000..33fc36a
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdCameraObjectRollup.ui
@@ -0,0 +1,397 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdCameraObjectRollup</class>
+ <widget class="QWidget" name="UsdCameraObjectRollup">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>128</width>
+    <height>449</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Usd Camera</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="verticalSpacing">
+    <number>0</number>
+   </property>
+   <item row="8" column="0">
+    <widget class="QGroupBox" name="groupBox_5">
+     <property name="title">
+      <string>Exposure</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_5">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="1">
+       <widget class="QLabel" name="ExposureValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="Exposure">
+        <property name="text">
+         <string>Adjustment:</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="7" column="0">
+    <widget class="QGroupBox" name="groupBox_2">
+     <property name="title">
+      <string>Shutter</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_4">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="ShutterOpen">
+        <property name="text">
+         <string>Open:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="ShutterOpenValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="ShutterClose">
+        <property name="text">
+         <string>Close:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="ShutterCloseValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QGroupBox" name="BasicGroup">
+     <property name="title">
+      <string>Basic</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_7">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="Projection">
+        <property name="frameShape">
+         <enum>QFrame::NoFrame</enum>
+        </property>
+        <property name="text">
+         <string>Projection:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="ProjectionValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="StereoRole">
+        <property name="text">
+         <string>Stereo Role:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="StereoRoleValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="5" column="0">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Aperture</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>6</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="HorizontalAperture">
+        <property name="text">
+         <string>Horizontal:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="HorizontalApertureValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="HorizontalApertureOffset">
+        <property name="text">
+         <string>Offset:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="HorizontalApertureOffsetValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="VerticalAperture">
+        <property name="text">
+         <string>Vertical:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLabel" name="VerticalApertureValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="VerticalApertureOffset">
+        <property name="text">
+         <string>Offset:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="QLabel" name="VerticalApertureOffsetValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="FStop">
+        <property name="text">
+         <string>FStop:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="QLabel" name="FStopValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="9" column="0">
+    <widget class="QGroupBox" name="groupBox_4">
+     <property name="title">
+      <string>Clipping</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_6">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="ClippingNearLabel">
+        <property name="text">
+         <string>Near:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="ClippingNearValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="ClippingFarLabel">
+        <property name="text">
+         <string>Far:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="ClippingFarValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="groupBox_6">
+     <property name="title">
+      <string>Source Path</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <property name="spacing">
+       <number>2</number>
+      </property>
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <item>
+       <widget class="ElidedLabel" name="PathLabel">
+        <property name="frameShape">
+         <enum>QFrame::StyledPanel</enum>
+        </property>
+        <property name="frameShadow">
+         <enum>QFrame::Raised</enum>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout_2"/>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="6" column="0">
+    <widget class="QGroupBox" name="groupBox_3">
+     <property name="title">
+      <string>Focus</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <property name="topMargin">
+       <number>3</number>
+      </property>
+      <property name="bottomMargin">
+       <number>3</number>
+      </property>
+      <property name="verticalSpacing">
+       <number>2</number>
+      </property>
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="FocalLength">
+        <property name="text">
+         <string>Focal Length:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="FocalLengthValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="FocusDistance">
+        <property name="text">
+         <string>Distance:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="FocusDistanceValue">
+        <property name="text">
+         <string>na</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ElidedLabel</class>
+   <extends>QFrame</extends>
+   <header location="global">MaxUsd/Widgets/ElidedLabel.h</header>
+  </customwidget>
+ </customwidgets> 
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdControllerWidget.cpp b/src/MaxUsdObjects/Views/UsdControllerWidget.cpp
new file mode 100644
index 0000000..e1f3dc4
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdControllerWidget.cpp
@@ -0,0 +1,258 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdControllerWidget.h"
+
+#include "ui_UsdControllerWidget.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QmaxToolClips.h>
+#include <maxscript/maxscript.h>
+
+#include <iparamb2.h>
+#include <maxicon.h>
+
+namespace {
+/**
+ * A 3dsMax Pick mode to pick USD Stage objects in the viewport and scene explorer
+ * for a USD controller.
+ */
+class PickStageMode
+    : public PickModeCallback
+    , PickNodeCallback
+{
+public:
+    static PickStageMode* GetInstance()
+    {
+        if (instance == nullptr) {
+            instance = std::unique_ptr<PickStageMode>(new PickStageMode());
+        }
+        return instance.get();
+    }
+
+    void Setup(QPushButton* button, IParamBlock2* paramBlock)
+    {
+        this->button = button;
+        this->paramBlock = paramBlock;
+    }
+
+    BOOL HitTest(IObjParam* ip, HWND hWnd, ViewExp* vpt, IPoint2 m, int flags) override
+    {
+        INode* node = ip->PickNode(hWnd, m);
+        return Filter(node);
+    }
+
+    BOOL Pick(IObjParam* ip, ViewExp* vpt) override
+    {
+        if (!paramBlock) {
+            return FALSE;
+        }
+
+        if (INode* node = vpt->GetClosestHit()) {
+            if (dynamic_cast<USDStageObject*>(node->GetObjectRef()->FindBaseObject())) {
+                paramBlock->SetValue(USDControllerParams_USDStage, 0, node);
+                return TRUE;
+            }
+        }
+        return FALSE;
+    }
+    void EnterMode(IObjParam* ip) override
+    {
+        if (button) {
+            button->setCheckable(true);
+            button->setChecked(true);
+        }
+    }
+    void ExitMode(IObjParam* ip) override
+    {
+        if (button) {
+            button->setChecked(false);
+            button->setCheckable(false);
+        }
+        button = nullptr;
+        paramBlock = nullptr;
+    }
+    BOOL RightClick(IObjParam* ip, ViewExp* vpt) override { return TRUE; }
+
+    PickNodeCallback* GetFilter() override { return this; }
+
+    BOOL Filter(INode* node) override
+    {
+        if (!node) {
+            return FALSE;
+        }
+        return node->GetObjectRef()->FindBaseObject()->ClassID() == USDSTAGEOBJECT_CLASS_ID;
+    }
+
+    QPointer<QPushButton> GetButton() const { return button; }
+
+private:
+    PickStageMode() = default;
+
+    /// The pick button.
+    QPushButton* button = nullptr;
+    /// The paramblock of the controller, where to set the stage node reference.
+    IParamBlock2* paramBlock = nullptr;
+    // Singleton instance.
+    static std::unique_ptr<PickStageMode> instance;
+};
+std::unique_ptr<PickStageMode> PickStageMode::instance = nullptr;
+} // namespace
+
+UsdControllerWidget::UsdControllerWidget(ReferenceMaker& owner, IParamBlock2& paramBlock)
+    : ui(new Ui::UsdControllerWidget)
+{
+    SetParamBlock(&owner, &paramBlock);
+    controller = static_cast<USDBaseController*>(&owner);
+
+    ui->setupUi(this);
+    ui->ClearButton->setIcon(MaxSDK::LoadMaxMultiResIcon(
+        "CommandPanel/Motion/BipedRollout/CopyAndPaste/DeleteSelectedPosture"));
+    // Disable max styling for tooltips - long strings are not well supported.
+    MaxSDK::QmaxToolClips::disableToolClip(ui->ObjectPath);
+    // The line edit's border color is used to communicate errors - keep a copy of the original
+    // palette.
+    usdObjectPathBasePalette = ui->ObjectPath->palette();
+
+    UpdateUI(GetCOREInterface()->GetTime());
+}
+
+UsdControllerWidget::~UsdControllerWidget()
+{
+    // Abort any ongoing pick if the widget is destroyed.
+    const auto pickMode = PickStageMode::GetInstance();
+    if (GetCOREInterface()->GetCurPickMode() == pickMode) {
+        GetCOREInterface()->ClearPickMode();
+    }
+}
+
+void UsdControllerWidget::SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    controller = static_cast<USDBaseController*>(owner);
+}
+
+void UsdControllerWidget::UpdateUI(const TimeValue t)
+{
+    UpdateParameterUI(t, USDControllerParams_USDStage, 0);
+    UpdateParameterUI(t, USDControllerParams_Path, 0);
+}
+
+void UsdControllerWidget::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (!paramBlock) {
+        return;
+    }
+
+    if (USDControllerParams_Path == paramId) {
+        auto         tooltip = QString();
+        const MCHAR* primPathStr = nullptr;
+        Interval     valid = FOREVER;
+        paramBlock->GetValue(
+            USDControllerParams_Path, GetCOREInterface()->GetTime(), primPathStr, valid);
+        const auto pathQStr = QString::fromStdWString(primPathStr);
+
+        if (pathQStr != ui->ObjectPath->text()) {
+            ui->ObjectPath->setText(pathQStr);
+        }
+
+        if (!pathQStr.isEmpty()) {
+            tooltip = pathQStr;
+        }
+        // Changes the border to red if the path is bad and adjust the tooltip!
+        if (!controller->IsSourceObjectValid() && !pathQStr.isEmpty()) {
+            QPalette              palette = ui->ObjectPath->palette();
+            static constexpr auto borderColor = QColor(189, 59, 49);
+
+            // Depending on where in 3dsMax the widget is placed, the max styling acts up
+            // a bit differently. The border color is either AlternateBase, or Window, both
+            // can be set without adverse effects.
+            palette.setColor(QPalette::AlternateBase, borderColor);
+            palette.setColor(QPalette::Window, borderColor);
+
+            ui->ObjectPath->setPalette(palette);
+            tooltip = GetPathErrorMessage() + tooltip;
+        } else {
+            ui->ObjectPath->setPalette(usdObjectPathBasePalette);
+        }
+        ui->ObjectPath->setToolTip(tooltip);
+    }
+
+    if (USDControllerParams_USDStage == paramId) {
+        INode*   stageNode = nullptr;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(
+            USDControllerParams_USDStage, GetCOREInterface()->GetTime(), stageNode, valid, 0);
+        if (!stageNode) {
+            ui->PickStageButton->setText("None");
+            return;
+        }
+        ui->PickStageButton->setText(QString::fromStdWString(stageNode->GetName()));
+    }
+}
+
+void UsdControllerWidget::SetPathErrorMessage(const QString& msg) { pathErrorMessage = msg; }
+
+const QString& UsdControllerWidget::GetPathErrorMessage() { return pathErrorMessage; }
+
+void UsdControllerWidget::SetLabel(const QString& label) { ui->ObjectPathLabel->setText(label); }
+
+QString UsdControllerWidget::GetLabel() const { return ui->ObjectPathLabel->text(); }
+
+void UsdControllerWidget::SetLabelTooltip(const QString& tooltip) const
+{
+    ui->ObjectPathLabel->setToolTip(tooltip);
+}
+
+QString UsdControllerWidget::GetLabelTooltip() const { return ui->ObjectPathLabel->toolTip(); }
+
+void UsdControllerWidget::SetPickButtonTooltip(const QString& tooltip) const
+{
+    ui->PickStageButton->setToolTip(tooltip);
+}
+
+QString UsdControllerWidget::GetPickButtonTooltip() const { return ui->PickStageButton->toolTip(); }
+
+void UsdControllerWidget::on_PickStageButton_clicked()
+{
+    const auto pickMode = PickStageMode::GetInstance();
+    const bool togglingOff = pickMode->GetButton() == ui->PickStageButton;
+    // First exit any ongoing pick modes.
+    GetCOREInterface()->ClearPickMode();
+    // If we are toggling the same pick mode button, we are done.
+    if (togglingOff) {
+        return;
+    }
+    pickMode->Setup(ui->PickStageButton, paramBlock);
+    GetCOREInterface()->SetPickMode(pickMode);
+}
+
+void UsdControllerWidget::on_ClearButton_clicked() const
+{
+    const auto pickMode = PickStageMode::GetInstance();
+    if (GetCOREInterface()->GetCurPickMode() == pickMode) {
+        GetCOREInterface()->ClearPickMode();
+    }
+    paramBlock->SetValue(USDControllerParams_USDStage, 0, static_cast<INode*>(nullptr));
+}
+
+void UsdControllerWidget::on_ObjectPath_textChanged(const QString& text) const
+{
+    paramBlock->SetValue(USDControllerParams_Path, 0, text.toStdWString().c_str());
+}
diff --git a/src/MaxUsdObjects/Views/UsdControllerWidget.h b/src/MaxUsdObjects/Views/UsdControllerWidget.h
new file mode 100644
index 0000000..53e48e5
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdControllerWidget.h
@@ -0,0 +1,106 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDBaseController.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+#include <ui_UsdControllerWidget.h>
+
+class IParamBlock2;
+
+class UsdControllerWidget final : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdControllerWidget(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdControllerWidget();
+
+    // QMaxParamBlockWidget overrides.
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    void UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+    /**
+     * Sets the error message displayed in the path line edit tooltip if the path is wrong. The
+     * erroneous path will be appended to the string provided here.
+     * @param msg The error message.
+     */
+    void SetPathErrorMessage(const QString& msg);
+
+    /**
+     * Gets the error message displayed in the path line edit tooltip, if the path is wrong. That
+     * will be appended to it.
+     * @return The error message.
+     */
+    const QString& GetPathErrorMessage();
+
+    /**
+     * Sets the label text for the path line edit.
+     * @param label The label text.
+     */
+    void SetLabel(const QString& label);
+
+    /**
+     * Gets the label text for the path line edit.
+     * @return The label text.
+     */
+    QString GetLabel() const;
+
+    /**
+     * Sets the tooltip for the path label.
+     * @param tooltip The tooltip to use.
+     */
+    void SetLabelTooltip(const QString& tooltip) const;
+
+    /**
+     * Gets the tooltip for the path label.
+     * @return The tooltip in use.
+     */
+    QString GetLabelTooltip() const;
+
+    /**
+     * Sets the tooltip for the pick stage button.
+     * @param tooltip The tooltip to use.
+     */
+    void SetPickButtonTooltip(const QString& tooltip) const;
+
+    /**
+     * Gets the tooltip for the pick stage button.
+     * @return The tooltip in use.
+     */
+    QString GetPickButtonTooltip() const;
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_PickStageButton_clicked();
+    void on_ClearButton_clicked() const;
+    void on_ObjectPath_textChanged(const QString& text) const;
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdControllerWidget> ui { std::make_unique<Ui::UsdControllerWidget>() };
+    /// The controller we are setting up from this UI.
+    USDBaseController* controller;
+    /// The default palette for the xformable path line edit.
+    QPalette usdObjectPathBasePalette;
+    /// The error message displayed in the path line edit tooltip, if the path is wrong
+    QString pathErrorMessage;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdControllerWidget.ui b/src/MaxUsdObjects/Views/UsdControllerWidget.ui
new file mode 100644
index 0000000..cc001e4
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdControllerWidget.ui
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdControllerWidget</class>
+ <widget class="QWidget" name="UsdControllerWidget">
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="StageRefLabel">
+     <property name="text">
+      <string>USD Stage:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="3,1">
+     <item>
+      <widget class="QPushButton" name="PickStageButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>1</width>
+         <height>30</height>
+        </size>
+       </property>
+       <property name="toolTip">
+        <string>Select the USD stage node that contains the controller's source object.</string>
+       </property>
+       <property name="text">
+        <string>None</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="ClearButton">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>24</height>
+        </size>
+       </property>
+       <property name="toolTip">
+        <string>Clears the selected USD Stage node.</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="iconSize">
+        <size>
+         <width>24</width>
+         <height>24</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QLabel" name="ObjectPathLabel">
+     <property name="toolTip">
+      <string>The path of USD object used as source.</string>
+     </property>
+     <property name="text">
+      <string>Object Path:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="3">
+     <item>
+      <widget class="QLineEdit" name="ObjectPath"/>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.cpp b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.cpp
new file mode 100644
index 0000000..e5f6697
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.cpp
@@ -0,0 +1,185 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageNodeAnimationRollup.h"
+
+#include "ui_UsdStageNodeAnimationRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <MaxUsd/Utilities/MathUtils.h>
+
+#include <Qt/QmaxToolClips.h>
+
+using namespace MaxSDK;
+
+UsdStageNodeAnimationRollup::UsdStageNodeAnimationRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageNodeAnimationRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+
+    ui->setupUi(this);
+    modelObj = static_cast<USDStageObject*>(&owner);
+
+    // Disable 3dsMax's tooltips for group boxes because the tooltips still not working properly
+    MaxSDK::QmaxToolClips::disableToolClip(ui->PlaybackTypeGroupBox);
+    MaxSDK::QmaxToolClips::disableToolClip(ui->MaxAnimationDataGroupBox);
+    MaxSDK::QmaxToolClips::disableToolClip(ui->SourceAnimationDataGroupBox);
+
+    ui->AnimationMode->addItem(tr("Original Range"), OriginalRange);
+    ui->AnimationMode->addItem(tr("Custom Start & Speed"), CustomStartAndSpeed);
+    ui->AnimationMode->addItem(tr("Custom Range"), CustomRange);
+    ui->AnimationMode->addItem(tr("Custom TimeCode Playback"), CustomTimeCodePlayback);
+
+    connect(
+        ui->AnimationMode,
+        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+        [this](int index) {
+            // The following condition depends on the fact that the combobox widget entries
+            // are ordered in the same way as the AnimationMode enum
+            if (index == AnimationMode::OriginalRange) {
+                ui->StartFrameLabel->setEnabled(false);
+                ui->CustomAnimationStartFrame->setEnabled(false);
+                ui->SpeedLabel->setEnabled(false);
+                ui->CustomAnimationSpeed->setEnabled(false);
+                ui->EndFrameLabel->setEnabled(false);
+                ui->CustomAnimationEndFrame->setEnabled(false);
+                ui->UsdTimecodeLabel->setEnabled(false);
+                ui->CustomAnimationPlaybackTimecode->setEnabled(false);
+                ui->ClampFramesLabel->setEnabled(false);
+                ui->ClampFrames->setEnabled(false);
+            } else if (index == AnimationMode::CustomStartAndSpeed) {
+                ui->StartFrameLabel->setEnabled(true);
+                ui->CustomAnimationStartFrame->setEnabled(true);
+                ui->SpeedLabel->setEnabled(true);
+                ui->CustomAnimationSpeed->setEnabled(true);
+                ui->EndFrameLabel->setEnabled(false);
+                ui->CustomAnimationEndFrame->setEnabled(false);
+                ui->UsdTimecodeLabel->setEnabled(false);
+                ui->CustomAnimationPlaybackTimecode->setEnabled(false);
+                ui->ClampFramesLabel->setEnabled(false);
+                ui->ClampFrames->setEnabled(false);
+            } else if (index == AnimationMode::CustomRange) {
+                ui->StartFrameLabel->setEnabled(true);
+                ui->CustomAnimationStartFrame->setEnabled(true);
+                ui->SpeedLabel->setEnabled(false);
+                ui->CustomAnimationSpeed->setEnabled(false);
+                ui->EndFrameLabel->setEnabled(true);
+                ui->CustomAnimationEndFrame->setEnabled(true);
+                ui->UsdTimecodeLabel->setEnabled(false);
+                ui->CustomAnimationPlaybackTimecode->setEnabled(false);
+                ui->ClampFramesLabel->setEnabled(false);
+                ui->ClampFrames->setEnabled(false);
+            } else if (index == AnimationMode::CustomTimeCodePlayback) {
+                ui->StartFrameLabel->setEnabled(false);
+                ui->CustomAnimationStartFrame->setEnabled(false);
+                ui->SpeedLabel->setEnabled(false);
+                ui->CustomAnimationSpeed->setEnabled(false);
+                ui->EndFrameLabel->setEnabled(false);
+                ui->CustomAnimationEndFrame->setEnabled(false);
+                ui->UsdTimecodeLabel->setEnabled(true);
+                ui->CustomAnimationPlaybackTimecode->setEnabled(true);
+                ui->ClampFramesLabel->setEnabled(true);
+                ui->ClampFrames->setEnabled(true);
+            }
+        });
+}
+
+UsdStageNodeAnimationRollup::~UsdStageNodeAnimationRollup() { }
+
+void UsdStageNodeAnimationRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+}
+
+void UsdStageNodeAnimationRollup::UpdateUI(const TimeValue t)
+{
+    auto stage = modelObj->GetUSDStage();
+    if (stage) {
+        float    fVal = 0;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(
+            PBParameterIds::MaxAnimationStartFrame, GetCOREInterface()->GetTime(), fVal, valid);
+        ui->MaxAnimationStartFrame->setText(
+            QString::number(MaxUsd::MathUtils::RoundToSignificantDigit(fVal, 4)));
+
+        paramBlock->GetValue(
+            PBParameterIds::MaxAnimationEndFrame, GetCOREInterface()->GetTime(), fVal, valid);
+        ui->MaxAnimationEndFrame->setText(
+            QString::number(MaxUsd::MathUtils::RoundToSignificantDigit(fVal, 4)));
+
+        ui->MaxAnimationFPS->setText(QString::number(GetFrameRate()));
+
+        paramBlock->GetValue(
+            PBParameterIds::SourceAnimationStartTimeCode,
+            GetCOREInterface()->GetTime(),
+            fVal,
+            valid);
+        ui->SourceAnimationStartTimeCode->setText(
+            QString::number(MaxUsd::MathUtils::RoundToSignificantDigit(fVal, 4)));
+
+        paramBlock->GetValue(
+            PBParameterIds::SourceAnimationEndTimeCode, GetCOREInterface()->GetTime(), fVal, valid);
+        ui->SourceAnimationEndTimeCode->setText(
+            QString::number(MaxUsd::MathUtils::RoundToSignificantDigit(fVal, 4)));
+
+        paramBlock->GetValue(
+            PBParameterIds::SourceAnimationTPS, GetCOREInterface()->GetTime(), fVal, valid);
+        ui->SourceAnimationTPS->setText(
+            QString::number(MaxUsd::MathUtils::RoundToSignificantDigit(fVal, 4)));
+    } else {
+        ui->MaxAnimationStartFrame->setText("N/A");
+        ui->MaxAnimationEndFrame->setText("N/A");
+        ui->MaxAnimationFPS->setText("N/A");
+        ui->SourceAnimationStartTimeCode->setText("N/A");
+        ui->SourceAnimationEndTimeCode->setText("N/A");
+        ui->SourceAnimationTPS->setText("N/A");
+    }
+    UpdateParameterUI(GetCOREInterface()->GetTime(), AnimationMode, t);
+}
+
+void UsdStageNodeAnimationRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (AnimationMode == paramId) {
+        int      value = 0;
+        Interval valid;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+        ui->AnimationMode->setCurrentIndex(value);
+    } else if (MaxAnimationEndFrame == paramId) {
+        float    value = 0;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+
+        double endFrame = MaxUsd::MathUtils::RoundToSignificantDigit(value, 4);
+        ui->MaxAnimationEndFrame->setText(QString::number(endFrame));
+        ui->MaxAnimationFPS->setText(QString::number(GetFrameRate()));
+    } else if (MaxAnimationStartFrame == paramId) {
+        float    value = 0;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+
+        double startFrame = MaxUsd::MathUtils::RoundToSignificantDigit(value, 4);
+        ui->MaxAnimationStartFrame->setText(QString::number(startFrame));
+        ui->MaxAnimationFPS->setText(QString::number(GetFrameRate()));
+    }
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.h b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.h
new file mode 100644
index 0000000..0d51729
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageNodeAnimationRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageNodeAnimationRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageNodeAnimationRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdStageNodeAnimationRollup();
+
+    virtual void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    virtual void UpdateUI(const TimeValue t) override;
+    virtual void
+    UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageNodeAnimationRollup> ui {
+        std::make_unique<Ui::UsdStageNodeAnimationRollup>()
+    };
+    /// USDStageObject model pointer
+    USDStageObject* modelObj;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.ui b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.ui
new file mode 100644
index 0000000..845db4b
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeAnimationRollup.ui
@@ -0,0 +1,287 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageNodeAnimationRollup</class>
+ <widget class="QWidget" name="UsdStageNodeAnimationRollup">
+  <property name="windowTitle">
+   <string>Animation</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="PlaybackTypeGroupBox">
+     <property name="toolTip">
+      <string>Use Playback Type settings to configure the animation of your USD stage. 
+You can specify an original range, a custom range, a custom start 
+speed, or specific USD timeCode.</string>
+     </property>
+     <property name="title">
+      <string>Playback Type</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_1">
+      <item row="0" column="0" colspan="2">
+       <widget class="QComboBox" name="AnimationMode">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Ignored" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="StartFrameLabel">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>Start Frame</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="MaxSDK::QmaxDoubleSpinBox" name="CustomAnimationStartFrame">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="minimum">
+         <number>-9999999</number>
+        </property>
+        <property name="maximum">
+         <number>9999999</number>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="EndFrameLabel">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>End Frame</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="MaxSDK::QmaxDoubleSpinBox" name="CustomAnimationEndFrame">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="minimum">
+         <number>-9999999</number>
+        </property>
+        <property name="maximum">
+         <number>9999999</number>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="SpeedLabel">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>Speed</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="MaxSDK::QmaxDoubleSpinBox" name="CustomAnimationSpeed">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="minimum">
+         <number>-9999999</number>
+        </property>
+        <property name="maximum">
+         <number>9999999</number>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="UsdTimecodeLabel">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>USD Time</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="MaxSDK::QmaxDoubleSpinBox" name="CustomAnimationPlaybackTimecode">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="minimum">
+         <number>0</number>
+        </property>
+        <property name="maximum">
+         <number>9999999</number>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="0">
+       <widget class="QLabel" name="ClampFramesLabel">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="visible">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>Clamp:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="1">
+       <widget class="QCheckBox" name="ClampFrames">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="visible">
+         <bool>false</bool>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="MaxAnimationDataGroupBox">
+     <property name="toolTip">
+      <string>3ds Max Animation Data displays the result of converting the animation to 3ds Max data, 
+matching the frames per second set in your 3ds Max scene, and applying playback settings.</string>
+     </property>
+     <property name="title">
+      <string>3ds Max Animation Data</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="0" column="0">
+       <widget class="QLabel" name="MaxStartFrameLabel">
+        <property name="text">
+         <string>New Start:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="MaxAnimationStartFrame"/>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="MaxEndFrameLabel">
+        <property name="text">
+         <string>New End:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="MaxAnimationEndFrame"/>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="MaxFPSLabel">
+        <property name="text">
+         <string>FPS:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLabel" name="MaxAnimationFPS"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="SourceAnimationDataGroupBox">
+     <property name="toolTip">
+      <string>Source Info displays the animation timeCode information found in
+your USD animation (Start, End, and TimeCodes Per Second).</string>
+     </property>
+     <property name="title">
+      <string>Source Info (USD TimeCode)</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <item row="0" column="0">
+       <widget class="QLabel" name="USDStartTimeCodeLabel">
+        <property name="text">
+         <string>Start:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="SourceAnimationStartTimeCode"/>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="USDEndTimeCodeLabel">
+        <property name="text">
+         <string>End:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="SourceAnimationEndTimeCode"/>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="SourceTPSLabel">
+        <property name="text">
+         <string>TPS:</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLabel" name="SourceAnimationTPS"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QmaxDoubleSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header location="global">Qt/QmaxSpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.cpp b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.cpp
new file mode 100644
index 0000000..2d94a10
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.cpp
@@ -0,0 +1,319 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageNodeParametersRollup.h"
+
+#include "QtWidgets/QDialog"
+#include "UsdStageNodePrimSelectionDialog.h"
+#include "ui_UsdStageNodeParametersRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+// max sdk
+#include <Qt/QmaxToolClips.h>
+
+#include <GetCOREInterface.h>
+#include <IPathConfigMgr.h>
+#include <iparamb2.h>
+#include <maxapi.h>
+#include <maxicon.h>
+
+using namespace MaxSDK;
+
+UsdStageNodeParametersRollup::UsdStageNodeParametersRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageNodeParametersRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+
+    ui->setupUi(this);
+
+    QSizePolicy sp = this->ui->progressBar->sizePolicy();
+
+    // 2023+ not using the embedded progress bar. Instead, uses the global progress bar, which is
+    // more feature rich in those versions.
+#ifdef IS_MAX2023_OR_GREATER
+    sp.setRetainSizeWhenHidden(false);
+#else
+    sp.setRetainSizeWhenHidden(true);
+#endif
+
+    this->ui->progressBar->setSizePolicy(sp);
+    this->ui->progressBar->setVisible(false);
+
+    modelObj = static_cast<USDStageObject*>(&owner);
+    RegisterProgressReporter();
+
+    // Disable Max tooltips as they do not handle long strings well.
+    MaxSDK::QmaxToolClips::disableToolClip(ui->FilePath);
+
+    ui->ReloadLayersButton->setIcon(
+        MaxSDK::LoadMaxMultiResIcon("CommandPanel/Motion/BipedRollout/MotionMixer/ReloadFiles"));
+    ui->ClearSessionLayerButton->setIcon(
+        MaxSDK::LoadMaxMultiResIcon("PolyTools/ViewportCanvas/DeleteLayer"));
+    const int iconSize = MaxSDK::UIScaled(16);
+    ui->ReloadLayersButton->setIconSize(QSize(iconSize, iconSize));
+    ui->ClearSessionLayerButton->setIconSize(QSize(iconSize, iconSize));
+
+    // Listen to stage events, some widgets should react to changes in the stage.
+    pxr::TfWeakPtr<UsdStageNodeParametersRollup> me(this);
+    onStageChangeNotice
+        = pxr::TfNotice::Register(me, &UsdStageNodeParametersRollup::OnStageChanged);
+
+    UpdateClearSessionLayerButtonState();
+}
+
+void UsdStageNodeParametersRollup::OnStageChanged(
+    pxr::UsdNotice::StageContentsChanged const& notice)
+{
+    const auto stage = modelObj->GetUSDStage();
+    if (stage == notice.GetStage()) {
+        UpdateClearSessionLayerButtonState();
+    }
+}
+
+UsdStageNodeParametersRollup::~UsdStageNodeParametersRollup()
+{
+    modelObj->UnregisterProgressReporter();
+    pxr::TfNotice::Revoke(onStageChangeNotice);
+}
+
+void UsdStageNodeParametersRollup::RegisterProgressReporter()
+{
+    if (!modelObj) {
+        return;
+    }
+
+    // In Max2023 and a later, the global progress bar can be configured to disable
+    // cancellation, and avoid suspending object edition, this was not possible in <= 2022.
+    // Therefor, in 2022, we use an embedded QProgressBar instead of the global one.
+#ifdef IS_MAX2023_OR_GREATER
+    auto start = [this](const std::wstring& title) {
+        GetCOREInterface()->ProgressStart(title.c_str(), false);
+        GetCOREInterface()->ProgressUpdate(0);
+    };
+    auto update = [this](int progress) {
+        const auto value = std::min(100, std::max(0, progress));
+        GetCOREInterface()->ProgressUpdate(value);
+    };
+    auto end = [this]() {
+        GetCOREInterface()->ProgressUpdate(100);
+        GetCOREInterface()->ProgressEnd();
+    };
+#else
+    auto start = [this](const std::wstring& title) {
+        QString format = QString::fromStdWString(title) + QString("%p%");
+        this->ui->progressBar->setFormat(format);
+        this->ui->progressBar->setVisible(true);
+    };
+    auto update = [this](int progress) {
+        const auto value = std::min(100, std::max(0, progress));
+        this->ui->progressBar->setValue(value);
+    };
+    auto end = [this]() {
+        this->ui->progressBar->setVisible(false);
+        this->ui->progressBar->setValue(0);
+        this->ui->progressBar->setFormat(QString {});
+    };
+#endif
+
+    const MaxUsd::ProgressReporter progressReporter { start, update, end };
+    modelObj->RegisterProgressReporter(progressReporter);
+}
+
+void UsdStageNodeParametersRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+    RegisterProgressReporter();
+}
+
+void UsdStageNodeParametersRollup::UpdateUI(const TimeValue t)
+{
+    auto stage = modelObj->GetUSDStage();
+    if (stage) {
+        FLOAT    sourceMPU = 0;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(
+            PBParameterIds::SourceMetersPerUnit, GetCOREInterface()->GetTime(), sourceMPU, valid);
+
+        const MCHAR* stageMaskValue = nullptr;
+        paramBlock->GetValue(StageMask, GetCOREInterface()->GetTime(), stageMaskValue, valid);
+
+        const MCHAR* rootLayerFilename = nullptr;
+        paramBlock->GetValue(StageFile, GetCOREInterface()->GetTime(), rootLayerFilename, valid);
+
+        double mpu = MaxUsd::MathUtils::RoundToSignificantDigit(sourceMPU, 5);
+        ui->SourceMetersPerUnit->setText(QString::number(mpu));
+        ui->StageMaskValue->setText(QString::fromWCharArray(stageMaskValue));
+
+        ui->FilePath->setToolTip(QString::fromWCharArray(rootLayerFilename));
+
+        ui->ExploreButton->setEnabled(true);
+    } else {
+        ui->SourceMetersPerUnit->setText("N/A");
+        ui->StageMaskValue->setText("/");
+        ui->FilePath->setToolTip("");
+
+        ui->ExploreButton->setEnabled(false);
+    }
+}
+
+void UsdStageNodeParametersRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (paramId == SourceMetersPerUnit) {
+        FLOAT    sourceMPU = 0;
+        Interval valid = FOREVER;
+        paramBlock->GetValue(
+            PBParameterIds::SourceMetersPerUnit, GetCOREInterface()->GetTime(), sourceMPU, valid);
+
+        double mpu = MaxUsd::MathUtils::RoundToSignificantDigit(sourceMPU, 5);
+
+        ui->SourceMetersPerUnit->setText(QString::number(mpu));
+    }
+}
+
+void UsdStageNodeParametersRollup::on_StageMaskButton_clicked() { SelectLayerAndPrim(false); }
+
+void UsdStageNodeParametersRollup::on_RootLayerPathButton_clicked() { SelectLayerAndPrim(true); }
+
+void UsdStageNodeParametersRollup::on_ReloadLayersButton_clicked() { modelObj->Reload(); }
+
+void UsdStageNodeParametersRollup::on_ClearSessionLayerButton_clicked()
+{
+    modelObj->ClearSessionLayer();
+}
+
+void UsdStageNodeParametersRollup::on_StageMaskValue_editingFinished()
+{
+    Interval     valid = FOREVER;
+    const MCHAR* stageMaskValue = nullptr;
+    paramBlock->GetValue(StageMask, GetCOREInterface()->GetTime(), stageMaskValue, valid);
+
+    if (ui->StageMaskValue->text().isEmpty()) {
+        ui->StageMaskValue->setText("/");
+    }
+    const auto newStageMask = ui->StageMaskValue->text();
+    const int  changed = wcscmp(stageMaskValue, newStageMask.toStdWString().c_str());
+    if (changed != 0) {
+        Interval     valid = FOREVER;
+        const MCHAR* rootLayer = nullptr;
+        paramBlock->GetValue(
+            PBParameterIds::StageFile, GetCOREInterface()->GetTime(), rootLayer, valid);
+        BOOL payloadsLoaded = false;
+        paramBlock->GetValue(
+            PBParameterIds::LoadPayloads, GetCOREInterface()->GetTime(), payloadsLoaded, valid);
+
+        // Use SetRootLayer() as it takes care of everything VS undo redo etc.
+        modelObj->SetRootLayer(rootLayer, newStageMask.toStdWString().c_str(), payloadsLoaded);
+    }
+}
+
+void UsdStageNodeParametersRollup::on_ExploreButton_clicked() { modelObj->OpenInUsdExplorer(); }
+
+namespace {
+pxr::VtDictionary options;
+const std::string optionsCategoryKey = "PrimSelectionDialogPreferences";
+} // namespace
+
+void UsdStageNodeParametersRollup::SelectLayerAndPrim(bool forceFileSelection)
+{
+    QString rootLayerPath = ui->FilePath->text();
+    QString stageMask = ui->StageMaskValue->text();
+
+    // If the root layer path is empty - the first thing we want to do is pop-up the file selection
+    // dialog.
+    if (rootLayerPath.isEmpty() || forceFileSelection) {
+        QFileInfo file = UsdStageNodePrimSelectionDialog::SelectFile(rootLayerPath);
+        rootLayerPath = file.absoluteFilePath();
+    }
+
+    // If still empty (user did not select a file / cancelled), exit.
+    if (rootLayerPath.isEmpty()) {
+        return;
+    }
+
+    // Load the options from disk only once per session.
+    static auto loadOptions = []() {
+        MaxUsd::OptionUtils::LoadUiOptions(optionsCategoryKey, options);
+        if (!options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads].IsHolding<bool>()) {
+            options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads] = true;
+        }
+        if (!options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer].IsHolding<bool>()) {
+            options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer] = true;
+        }
+        return true;
+    };
+    static bool optionLoaded = loadOptions();
+
+    std::unique_ptr<UsdStageNodePrimSelectionDialog> primSelectionDialog
+        = std::make_unique<UsdStageNodePrimSelectionDialog>(
+            rootLayerPath,
+            stageMask,
+            MaxUsd::TreeModelFactory::TypeFilteringMode::Exclude,
+            std::vector<std::string> { "Material", "Shader", "GeomSubset" },
+            options);
+
+    // Finally, open the dialog.
+    if (primSelectionDialog->exec() == QDialog::Accepted) {
+        // user hit OK
+        QString rootLayerPath = primSelectionDialog->GetRootLayerPath();
+        QString selectedPrim = primSelectionDialog->GetMaskPath();
+        options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads]
+            = primSelectionDialog->GetPayloadsLoaded();
+
+        // Start by closing the current stage in the explorer. Depending on the option selected from
+        // the UI, we may or may not want to reopen the new stage in the explorer.
+        modelObj->CloseInUsdExplorer();
+
+        modelObj->SetRootLayer(
+            TSTR(rootLayerPath.toStdString().c_str()).data(),
+            TSTR(selectedPrim.toStdString().c_str()).data(),
+            options[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads].UncheckedGet<bool>());
+
+        // Trigger a UI refresh.
+        UpdateUI(0);
+
+        // Remember user choice, per session.
+        options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer]
+            = primSelectionDialog->GetOpenInUsdExplorer();
+        if (options[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer].UncheckedGet<bool>()) {
+            modelObj->OpenInUsdExplorer();
+        }
+        MaxUsd::OptionUtils::SaveUiOptions(optionsCategoryKey, options);
+    }
+}
+
+void UsdStageNodeParametersRollup::UpdateClearSessionLayerButtonState()
+{
+    bool enable = false;
+    if (const auto stage = modelObj->GetUSDStage()) {
+        if (const auto sessionLayer = stage->GetSessionLayer()) {
+            enable = !sessionLayer->IsEmpty();
+        }
+    }
+    if (ui->ClearSessionLayerButton->isEnabled() != enable) {
+        ui->ClearSessionLayerButton->setEnabled(enable);
+    }
+}
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.h b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.h
new file mode 100644
index 0000000..3a40d79
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.h
@@ -0,0 +1,69 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageNodeParametersRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageNodeParametersRollup : public MaxSDK::QMaxParamBlockWidget,
+	public pxr::TfWeakBase // to be able to listen to USD Stage events.
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageNodeParametersRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdStageNodeParametersRollup();
+    void RegisterProgressReporter();
+
+    virtual void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    virtual void UpdateUI(const TimeValue t) override;
+    virtual void
+    UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_RootLayerPathButton_clicked();
+    void on_StageMaskButton_clicked();
+    void on_ReloadLayersButton_clicked();
+    void on_ClearSessionLayerButton_clicked();
+    void on_StageMaskValue_editingFinished();
+    void on_ExploreButton_clicked();
+
+private:
+    void SelectLayerAndPrim(bool forceFileSelection);
+
+    void UpdateClearSessionLayerButtonState();
+
+    void OnStageChanged(pxr::UsdNotice::StageContentsChanged const& notice);
+
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageNodeParametersRollup> ui {
+        std::make_unique<Ui::UsdStageNodeParametersRollup>()
+    };
+    /// USDStageObject model pointer
+    USDStageObject* modelObj;
+    /// USD stage notification listener key
+    pxr::TfNotice::Key onStageChangeNotice;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.ui b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.ui
new file mode 100644
index 0000000..e879b52
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodeParametersRollup.ui
@@ -0,0 +1,294 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageNodeParametersRollup</class>
+ <widget class="QWidget" name="UsdStageNodeParametersRollup">
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="MinimumExpanding">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Parameters</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="RootLayerLabel">
+     <property name="text">
+      <string>Root Layer</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="4,1">
+     <property name="spacing">
+      <number>0</number>
+     </property>
+     <item>
+      <widget class="QLineEdit" name="FilePath">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="acceptDrops">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="RootLayerPathButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Opens the Select USD File window to choose the root layer referenced by the stage.</string>
+       </property>
+       <property name="layoutDirection">
+        <enum>Qt::LeftToRight</enum>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QLabel" name="PrimLabel">
+     <property name="text">
+      <string>Stage Mask</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="4,1">
+     <property name="spacing">
+      <number>0</number>
+     </property>
+     <item>
+      <widget class="QLineEdit" name="StageMaskValue">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="acceptDrops">
+        <bool>false</bool>
+       </property>
+       <property name="toolTip">
+        <string>The prim path used to mask the stage. When set, only that prim and its children are displayed in the stage. Note that using this option can sometimes make the materials inaccessible. If an invalid prim path is entered, no prims are displayed.</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="StageMaskButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Opens the Create USD from File options to select a new stage mask path.</string>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QPushButton" name="ExploreButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="toolTip">
+      <string>Opens USD Explorer to view the stage's prim hierarchy. This button is disabled by default and enabled automatically when the stage object has a valid root layer.</string>
+     </property>
+     <property name="text">
+      <string>Open in USD Explorer</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="Line" name="line">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QToolButton" name="ReloadLayersButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Reloads the stage. Use this after changes are made to the referenced USD files and you want to see those changes in Max.</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="iconSize">
+        <size>
+         <width>24</width>
+         <height>24</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="ClearSessionLayerButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Clears the session layer of any applied edits. This button is disabled by default and enabled automatically when edits to the session layer are detected.</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="iconSize">
+        <size>
+         <width>24</width>
+         <height>24</height>
+        </size>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="Line" name="line_2">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="0" column="1">
+      <widget class="QLabel" name="SourceMetersPerUnit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>N/A</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="SourceUpAxisLabel">
+       <property name="text">
+        <string>Up Axis:</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="SourceUpAxis">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>N/A</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QLabel" name="SourceMetersPerUnitLabel">
+       <property name="text">
+        <string>Meters per unit:</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QProgressBar" name="progressBar">
+     <property name="statusTip">
+      <string/>
+     </property>
+     <property name="styleSheet">
+      <string notr="true">QProgressBar { color: black; }</string>
+     </property>
+     <property name="value">
+      <number>24</number>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="invertedAppearance">
+      <bool>false</bool>
+     </property>
+     <property name="textDirection">
+      <enum>QProgressBar::TopToBottom</enum>
+     </property>
+     <property name="format">
+      <string>Building materials %p%</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="Line" name="line_3">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="GenerateCameras">
+     <property name="text">
+      <string>Generate Cameras</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.cpp b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.cpp
new file mode 100644
index 0000000..1388b28
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.cpp
@@ -0,0 +1,372 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageNodePrimSelectionDialog.h"
+
+#include "ui_UsdStageNodePrimSelectionDialog.h"
+
+#include <MaxUsd/Widgets/TreeModelFactory.h>
+
+#include <Qt/QmaxMainWindow.h>
+
+#include <IPathConfigMgr.h>
+#include <QtWidgets/QFileDialog>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QWhatsThis>
+#include <helpsys.h>
+#include <maxapi.h>
+
+#define idh_usd_stageref _T("idh_usd_stageref")
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdPrimSelectionDialogTokens, PXR_MAXUSD_PRIM_SELECTION_DIALOG_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+UsdStageNodePrimSelectionDialog::UsdStageNodePrimSelectionDialog(
+    const QString&                              rootLayerPath,
+    const QString&                              maskPath,
+    MaxUsd::TreeModelFactory::TypeFilteringMode filterMode,
+    const std::vector<std::string>&             filteredTypeNames,
+    const pxr::VtDictionary&                    options,
+    QWidget*                                    parent)
+    : rootLayerPath { rootLayerPath }
+    , maskPath { maskPath }
+    , QDialog { parent }
+    , ui(new Ui::UsdStageNodePrimSelectionDialog)
+    , filterMode { filterMode }
+    , filteredTypeNames { filteredTypeNames }
+{
+    setWindowFlags(windowFlags() | Qt::WindowContextHelpButtonHint);
+    ui->setupUi(this);
+    setParent(GetCOREInterface()->GetQmaxMainWindow(), windowFlags());
+
+    ui->Buttons->button(QDialogButtonBox::Ok)->setEnabled(false);
+    if (!rootLayerPath.isEmpty()) {
+        SetupUiFromRootLayerFilename(QFileInfo(rootLayerPath));
+    }
+    // Setup or hide, the "open in explorer" option.
+    const auto openInExplorerIt
+        = options.find(pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer);
+    if (openInExplorerIt == options.end()) {
+        ui->OpenInUsdExplorerCheckbox->setVisible(false);
+        ui->OpenInUsdExplorerCheckbox->setChecked(false);
+    } else {
+        ui->OpenInUsdExplorerCheckbox->setChecked(openInExplorerIt->second.UncheckedGet<bool>());
+    }
+
+    // Setup or hide, the "load payloads" option.
+    const auto payloadIt = options.find(pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads);
+    if (payloadIt == options.end()) {
+        ui->LoadPayloadsCheckbox->setChecked(false);
+        ui->LoadPayloadsCheckbox->setVisible(false);
+    } else {
+        ui->LoadPayloadsCheckbox->setChecked(payloadIt->second.UncheckedGet<bool>());
+    }
+
+    const float dpiScale = MaxSDK::GetUIScaleFactor();
+    this->resize(this->geometry().width() * dpiScale, this->geometry().height() * dpiScale);
+}
+
+UsdStageNodePrimSelectionDialog::~UsdStageNodePrimSelectionDialog() { }
+
+const pxr::VtDictionary& UsdStageNodePrimSelectionDialog::GetDefaultDictionary()
+{
+    static pxr::VtDictionary defaultDict;
+    static std::once_flag    once;
+    std::call_once(once, []() {
+        defaultDict[pxr::MaxUsdPrimSelectionDialogTokens->loadPayloads] = true;
+        defaultDict[pxr::MaxUsdPrimSelectionDialogTokens->openInExplorer] = true;
+    });
+
+    return defaultDict;
+}
+
+void UsdStageNodePrimSelectionDialog::on_RootLayerLineEdit_editingFinished()
+{
+    QFileInfo file = QFileInfo { ui->RootLayerLineEdit->text() };
+    if (file.isFile()) {
+        SetupUiFromRootLayerFilename(file);
+    } else {
+        // These calls must come after the UI is initialized via "setupUi()":
+        treeModel = MaxUsd::TreeModelFactory::CreateEmptyTreeModel();
+        proxyModel = std::make_unique<QSortFilterProxyModel>(this);
+
+        // Configure the TreeView of the dialog:
+        proxyModel->setSourceModel(treeModel.get());
+        ui->treeView->setModel(proxyModel.get());
+    }
+}
+
+void UsdStageNodePrimSelectionDialog::SetupUiFromRootLayerFilename(const QFileInfo& fileInfo)
+{
+    if (!fileInfo.isFile()) {
+        return;
+    }
+
+    rootLayerPath = QDir::toNativeSeparators(fileInfo.absoluteFilePath());
+    ui->RootLayerLineEdit->setText(rootLayerPath);
+
+    stage
+        = pxr::UsdStage::Open(rootLayerPath.toStdString(), pxr::UsdStage::InitialLoadSet::LoadNone);
+
+    if (!stage) {
+        return;
+    }
+
+    // These calls must come after the UI is initialized via "setupUi()":
+    treeModel
+        = MaxUsd::TreeModelFactory::CreateFromSearch(stage, "", filterMode, filteredTypeNames);
+    proxyModel = std::make_unique<QSortFilterProxyModel>(this);
+
+    // Configure the TreeView of the dialog:
+    proxyModel->setSourceModel(treeModel.get());
+
+    proxyModel->setDynamicSortFilter(false);
+    proxyModel->setFilterCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
+    ui->treeView->setModel(proxyModel.get());
+    ui->treeView->expandToDepth(3);
+
+    QHeaderView* treeHeader = ui->treeView->header();
+    treeHeader->resetDefaultSectionSize();
+
+    // Set the width for the first column of the TreeView as the width divided by 3 of the "filter"
+    // text box above it:
+    treeHeader->resizeSection(0, ui->filterLineEdit->size().width() / 3);
+
+    // Configure the "Path" column to be the one that stretches to accomodate sufficient space for
+    // content:
+    treeHeader->setStretchLastSection(false);
+    treeHeader->setSectionResizeMode(
+        MaxUsd::QTreeModel::TREE_COLUMNS::PATH, QHeaderView::ResizeMode::Stretch);
+
+    treeHeader->setToolTip(QApplication::translate(
+        "UsdStageNodePrimSelectionDialog",
+        "Select a prim for stage reference creation. All prims descending from the selected prim "
+        "are added into your referenced scene.",
+        nullptr));
+
+    connect(
+        ui->filterLineEdit,
+        &QLineEdit::textChanged,
+        this,
+        &UsdStageNodePrimSelectionDialog::OnSearchFilterChanged);
+    connect(
+        ui->treeView->selectionModel(),
+        &QItemSelectionModel::selectionChanged,
+        this,
+        &UsdStageNodePrimSelectionDialog::OnTreeViewSelectionChanged);
+
+    connect(
+        ui->treeView->selectionModel(),
+        &QItemSelectionModel::selectionChanged,
+        [=]() { // with lambda
+            if (ui->treeView->selectionModel()->selectedIndexes().size() > 2) {
+                QList<QModelIndex> lst = ui->treeView->selectionModel()->selectedIndexes();
+                ui->treeView->selectionModel()->select(lst.first(), QItemSelectionModel::Deselect);
+            }
+        });
+
+    // Select row based on maskPath
+    selectTreeViewPrimFromString(maskPath);
+
+    // Create the Spinner overlay on top of the TreeView, once it is configured:
+    overlay = std::make_unique<MaxUsd::QSpinnerOverlayWidget>(ui->treeView);
+
+    // need to manually call the filter function if a filter had already been typed
+    if (!ui->filterLineEdit->text().isEmpty()) {
+        OnSearchFilterChanged(ui->filterLineEdit->text());
+        overlay->resize(ui->treeView->size());
+    }
+}
+
+void UsdStageNodePrimSelectionDialog::showEvent(QShowEvent* qEvent)
+{
+    QHeaderView* treeHeader = ui->treeView->header();
+    // Need to set the section width here again because the size of the filterLineEdit is calculated
+    // after rendering and in some cases, having this code only in the other function won't resize
+    // to the correct amount
+    treeHeader->resizeSection(0, ui->filterLineEdit->size().width() / 3);
+}
+
+void UsdStageNodePrimSelectionDialog::selectTreeViewPrimFromString(
+    const QString& pathToSelect) const
+{
+    const QModelIndexList nextMatches = ui->treeView->selectionModel()->model()->match(
+        ui->treeView->model()->index(0, 1),
+        Qt::DisplayRole,
+        pathToSelect,
+        1,
+        Qt::MatchRecursive | Qt::MatchExactly);
+    if (!nextMatches.empty()) {
+        const QModelIndex itemIndex = nextMatches.at(0);
+        ui->treeView->setCurrentIndex(itemIndex);
+        ui->treeView->selectionModel()->select(itemIndex, QItemSelectionModel::Select);
+    } else {
+        ui->treeView->setCurrentIndex(ui->treeView->model()->index(0, 0));
+    }
+}
+
+QFileInfo UsdStageNodePrimSelectionDialog::SelectFile(const QString& initialFilePath)
+{
+    QString initialDir = initialFilePath;
+    if (initialFilePath.isEmpty() || !QFile::exists(initialFilePath)) {
+        initialDir = MSTR(IPathConfigMgr::GetPathConfigMgr()->GetDir(APP_RENDER_ASSETS_DIR));
+    }
+
+    QFileInfo file { QFileDialog::getOpenFileName(
+        nullptr,
+        tr("Select Universal Scene Description (USD) File"),
+        initialDir,
+        tr("USD (*.usd;*.usda;*.usdc)")) };
+    if (file.isFile()) {
+        return file;
+    }
+    return QFileInfo();
+}
+
+void UsdStageNodePrimSelectionDialog::on_RootLayerPathButton_clicked()
+{
+    QFileInfo file = SelectFile(rootLayerPath);
+    SetupUiFromRootLayerFilename(file);
+}
+
+const QString& UsdStageNodePrimSelectionDialog::GetRootLayerPath() const { return rootLayerPath; }
+
+const QString& UsdStageNodePrimSelectionDialog::GetRootLayerFilename() const
+{
+    return rootLayerFilename;
+}
+
+const QString& UsdStageNodePrimSelectionDialog::GetMaskPath() const { return maskPath; }
+
+const bool UsdStageNodePrimSelectionDialog::GetPayloadsLoaded() const
+{
+    return ui->LoadPayloadsCheckbox->isChecked();
+}
+
+const bool UsdStageNodePrimSelectionDialog::GetOpenInUsdExplorer() const
+{
+    return ui->OpenInUsdExplorerCheckbox->isChecked();
+}
+
+void UsdStageNodePrimSelectionDialog::OnSearchFilterChanged(const QString& searchFilter)
+{
+    // Stop any search that was already ongoing but that has not yet completed:
+    if (searchThread != nullptr && !searchThread->isFinished()) {
+        searchThread->quit();
+        searchThread->wait();
+    }
+
+    // Create a timer that will display a Spinner if the search has been ongoing for a (small)
+    // amount of time, to let the User know that a background task is ongoing and that 3ds Max is
+    // not frozen:
+    searchTimer = std::make_unique<QTimer>(this);
+    searchTimer->setSingleShot(true);
+    connect(searchTimer.get(), &QTimer::timeout, searchTimer.get(), [this]() {
+        ui->treeView->setEnabled(false);
+        overlay->StartSpinning();
+    });
+    searchTimer->start(std::chrono::milliseconds(125).count());
+
+    // Create a thread to perform a search for the given criteria in the background in order to
+    // maintain a responsive UI that continues accepting input from the User:
+    searchThread = std::make_unique<MaxUsd::USDSearchThread>(
+        stage, searchFilter.toStdString(), filterMode, filteredTypeNames);
+    connect(
+        searchThread.get(),
+        &MaxUsd::USDSearchThread::finished,
+        searchThread.get(),
+        [&, searchFilter, this]() {
+            // Since results have been received, discard the timer that was waiting for results so
+            // that the Spinner Widget is not displayed:
+            searchTimer->stop();
+
+            // Set the search results as the new effective data:
+            treeModel = std::move(searchThread->ConsumeResults());
+            proxyModel->setSourceModel(treeModel.get());
+
+            // Set the View to a sensible state to reflect the new data:
+            bool searchYieledResults = proxyModel->hasChildren();
+            ui->treeView->expandAll();
+            ui->treeView->selectionModel()->clearSelection();
+            ui->treeView->setEnabled(searchYieledResults);
+            ui->Buttons->button(QDialogButtonBox::Ok)->setEnabled(false);
+
+            // Select the root prim row when the searchFilter is empty so that when the user inputs
+            // a filter and eventually removes it, there will be a row selected in prim browser.
+            if (searchFilter.toStdString().empty()) {
+                // Our selection UI spans over 2 columns starting at column 1
+                ui->treeView->selectionModel()->select(
+                    ui->treeView->model()->index(0, 1), QItemSelectionModel::Select);
+                ui->treeView->selectionModel()->select(
+                    ui->treeView->model()->index(0, 2), QItemSelectionModel::Select);
+                ui->Buttons->button(QDialogButtonBox::Ok)->setEnabled(true);
+            }
+
+            if (searchYieledResults) {
+                overlay->Hide();
+            } else {
+                overlay->ShowInformationMessage(tr("Your search did not match any Prim."));
+            }
+        });
+
+    searchThread->start(QThread::Priority::TimeCriticalPriority);
+}
+
+void UsdStageNodePrimSelectionDialog::OnTreeViewSelectionChanged(
+    const QItemSelection& selectedItems,
+    const QItemSelection& deselectedItems)
+{
+    // Note that Qt does not trigger "selectionChanged" signals when changing selection from within
+    // the propagation chain, so this will not cause an infinite callback loop.
+    QItemSelectionModel* selectionModel = ui->treeView->selectionModel();
+    if (selectionModel != nullptr) {
+        bool selectionIsEmpty = selectionModel->selection().isEmpty();
+        if (selectionIsEmpty) {
+            selectionModel->select(deselectedItems, QItemSelectionModel::Deselect);
+        } else {
+            const auto& selectedRows
+                = selectionModel->selectedRows(MaxUsd::QTreeModel::TREE_COLUMNS::PATH);
+            if (!selectedRows.isEmpty()) {
+                const auto& selectedPathIndex = selectedRows[0];
+
+                auto           sourceIndex = proxyModel->mapToSource(selectedPathIndex);
+                QStandardItem* item = treeModel->itemFromIndex(sourceIndex);
+                if (item != nullptr) {
+                    QVariant pathData = item->data(Qt::DisplayRole);
+                    if (pathData.isValid() && pathData.canConvert<QString>()) {
+                        maskPath = pathData.toString();
+                    }
+                }
+            }
+        }
+
+        // Make sure the "Ok" button is disabled if no item of the Tree is selected:
+        ui->Buttons->button(QDialogButtonBox::Ok)->setEnabled(!selectionIsEmpty);
+    }
+}
+
+bool UsdStageNodePrimSelectionDialog::event(QEvent* ev)
+{
+    if (ev->type() == QEvent::EnterWhatsThisMode) {
+        // We need to leave immediately the "What's this" mode, otherwise
+        // system is waiting for a click on particular widget
+        QWhatsThis::leaveWhatsThisMode();
+        // Open a new web page containing help about usd component export
+        MaxSDK::IHelpSystem::GetInstance()->ShowProductHelpForTopic(idh_usd_stageref);
+        return true;
+    }
+    return __super::event(ev);
+}
diff --git a/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.h b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.h
new file mode 100644
index 0000000..7c0e7e7
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.h
@@ -0,0 +1,159 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsdObjects/MaxUsdObjectsAPI.h>
+
+#include <MaxUsd/Widgets/QSpinnerOverlayWidget.h>
+#include <MaxUsd/Widgets/QTreeModel.h>
+#include <MaxUsd/Widgets/USDSearchThread.h>
+
+#include <QtCore/QFileInfo.h>
+#include <QtCore/QSortFilterProxyModel.h>
+#include <QtWidgets/QDialog>
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define PXR_MAXUSD_PRIM_SELECTION_DIALOG_TOKENS \
+	/* Dictionary keys */ \
+	/* Whether or not to load payloads when opening the root layer. */ \
+	(loadPayloads) \
+	/* Whether or not to open the explorer after layer/prim selection. */ \
+	(openInExplorer)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdPrimSelectionDialogTokens,
+    MaxUSDObjectsAPI,
+    PXR_MAXUSD_PRIM_SELECTION_DIALOG_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+namespace Ui {
+class UsdStageNodePrimSelectionDialog;
+}
+
+class UsdStageNodePrimSelectionDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageNodePrimSelectionDialog(
+        const QString&                              rootLayerPath = nullptr,
+        const QString&                              maskPath = nullptr,
+        MaxUsd::TreeModelFactory::TypeFilteringMode filterMode
+        = MaxUsd::TreeModelFactory::TypeFilteringMode::NoFilter,
+        const std::vector<std::string>& filteredTypeNames = {},
+        const pxr::VtDictionary&        options = GetDefaultDictionary(),
+        QWidget*                        parent = nullptr);
+
+    virtual ~UsdStageNodePrimSelectionDialog();
+
+    /**
+     * \brief Function which sets up the UI of this Dialog widget, which includes the QTreeView
+     * \param fileInfo QFileInfo ref which contains the RootFilename
+     */
+    void SetupUiFromRootLayerFilename(const QFileInfo& fileInfo);
+
+    const QString& GetRootLayerPath() const;
+    const QString& GetRootLayerFilename() const;
+    const QString& GetMaskPath() const;
+    const bool     GetPayloadsLoaded() const;
+    const bool     GetOpenInUsdExplorer() const;
+
+    /**
+     * \brief This method will open a file selection window to select a USD layer to populate
+     * the dialog from.
+     * \param initialFilePath The path to which the file selection dialog will open, by default the APP_RENDER_ASSETS_DIR.
+     * \return A QFileInfo object, setup with the selected file.
+     */
+    static QFileInfo SelectFile(const QString& initialFilePath = QString());
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_RootLayerPathButton_clicked();
+    void on_RootLayerLineEdit_editingFinished();
+
+protected:
+    /**
+     * \brief Callback function executed upon changing the text in the search box.
+     * \param searchFilter The new content of the search box.
+     */
+    void OnSearchFilterChanged(const QString& searchFilter);
+
+    /**
+     * \brief Callback function executed upon selecting items in the QTreeView.
+     * \param selectedItems The list of TreeView items which were selected.
+     * \param deselectedItems The list of TreeView items which were deselected.
+     */
+    void OnTreeViewSelectionChanged(
+        const QItemSelection& selectedItems,
+        const QItemSelection& deselectedItems);
+
+    /**
+     * \brief This event handler can be reimplemented in a subclass to receive widget show events which are passed in the event parameter.
+     * \param qEvent The QShowEvent pointer containing the event.
+     */
+    void showEvent(QShowEvent* qEvent) override;
+
+    /**
+     * \brief Looks for the given string path in the TreeView stage hierarchy and selects it.
+     * \param pathToSelect The path for the prim to be selected in the TreeView hierarchy. Selects root prim if path can't be found.
+     */
+    void selectTreeViewPrimFromString(const QString& pathToSelect) const;
+
+    /**
+     * \brief Callback function that is called on Qt events.
+     * \param ev Pointer to QEvent object that holds information on the event.
+     */
+    bool event(QEvent* ev) override;
+
+private:
+    /**
+     * \brief The dictionary holding the default state of all the options.
+     * \return The default options dictionary.
+     */
+    static const pxr::VtDictionary& GetDefaultDictionary();
+
+    /// Member variable holding the root layer path, which is the file path
+    QString rootLayerPath;
+    /// Member variable holding only the file name portion of the path
+    QString rootLayerFilename;
+    /// Member variable holding stage mask, which is the path to the prim to be targeted
+    QString maskPath;
+
+    /// RefPtr to the stage
+    pxr::UsdStageRefPtr stage;
+    /// Reference to the Qt UI View of the dialog
+    std::unique_ptr<Ui::UsdStageNodePrimSelectionDialog> ui {
+        std::make_unique<Ui::UsdStageNodePrimSelectionDialog>()
+    };
+
+    /// Reference to the Model holding the structure of the USD file hierarchy
+    std::unique_ptr<MaxUsd::QTreeModel> treeModel;
+    /// Reference to the Proxy Model used to sort and filter the USD file hierarchy
+    std::unique_ptr<QSortFilterProxyModel> proxyModel;
+    /// TreeView overlay on which to display an animated Spinner or message to the User
+    std::unique_ptr<MaxUsd::QSpinnerOverlayWidget> overlay;
+    /// Reference to the thread used to perform Prim searches in the background
+    std::unique_ptr<MaxUsd::USDSearchThread> searchThread;
+    /// Reference to the timer used to display a Spinner overlay on top of the TreeView in case of
+    /// lengthy search operations
+    std::unique_ptr<QTimer> searchTimer;
+
+    /// Variables used to filter the stage Prims based on their type.
+    std::vector<std::string>                    filteredTypeNames;
+    MaxUsd::TreeModelFactory::TypeFilteringMode filterMode;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.ui b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.ui
new file mode 100644
index 0000000..2f04512
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageNodePrimSelectionDialog.ui
@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageNodePrimSelectionDialog</class>
+ <widget class="QDialog" name="UsdStageNodePrimSelectionDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>474</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Create USD Stage from File</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Root Layer</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_2">
+      <item>
+       <widget class="QLineEdit" name="RootLayerLineEdit"/>
+      </item>
+      <item>
+       <widget class="QPushButton" name="RootLayerPathButton">
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QGroupBox" name="SceneContentGroupBox">
+     <property name="title">
+      <string>Scene Content</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_6">
+      <item>
+       <widget class="QCheckBox" name="LoadPayloadsCheckbox">
+        <property name="text">
+         <string>Load Payloads</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLabel" name="label">
+        <property name="toolTip">
+         <string>The prim path used to mask the stage. When set, only that prim and its children are displayed in the stage.</string>
+        </property>
+        <property name="text">
+         <string>Select Stage Mask Path </string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QSplitter" name="splitter">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <widget class="QWidget" name="verticalLayoutWidget_2">
+         <layout class="QVBoxLayout" name="verticalLayout_5" stretch="0,1">
+          <item>
+           <widget class="QLineEdit" name="filterLineEdit">
+            <property name="inputMask">
+             <string/>
+            </property>
+            <property name="placeholderText">
+             <string>Filter by prim name...</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QTreeView" name="treeView">
+            <property name="editTriggers">
+             <set>QAbstractItemView::NoEditTriggers</set>
+            </property>
+            <property name="uniformRowHeights">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="5,0,0">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="OpenInUsdExplorerCheckbox">
+       <property name="toolTip">
+        <string>If selected, opens the USD Explorer to view the stage's prim hierarchy.</string>
+       </property>
+       <property name="text">
+        <string>Open In USD Explorer</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="Buttons">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>Buttons</sender>
+   <signal>accepted()</signal>
+   <receiver>UsdStageNodePrimSelectionDialog</receiver>
+   <slot>accept()</slot>
+  </connection>
+  <connection>
+   <sender>Buttons</sender>
+   <signal>rejected()</signal>
+   <receiver>UsdStageNodePrimSelectionDialog</receiver>
+   <slot>reject()</slot>
+  </connection>
+ </connections>
+</ui>
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.cpp b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.cpp
new file mode 100644
index 0000000..db2ea5d
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageRenderSettingsRollup.h"
+
+#include "Ui_UsdStageRenderSettingsRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <iInstanceMgr.h>
+#include <iparamb2.h>
+
+using namespace MaxSDK;
+
+UsdStageRenderSettingsRollup::UsdStageRenderSettingsRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageRenderSettingsRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+
+    ui->setupUi(this);
+    modelObj = static_cast<USDStageObject*>(&owner);
+}
+
+UsdStageRenderSettingsRollup::~UsdStageRenderSettingsRollup() { }
+
+void UsdStageRenderSettingsRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+}
+
+void UsdStageRenderSettingsRollup::UpdateUI(const TimeValue t) { }
+
+void UsdStageRenderSettingsRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+}
+
+void UsdStageRenderSettingsRollup::on_AssignMtlToNodeButton_clicked() const
+{
+    // First figure out all the nodes that reference this USD stage (could have many in case
+    // of instanced stages)
+    auto getNodeFromObject = [](BaseObject* obj) {
+        ULONG handle = 0;
+        obj->NotifyDependents(FOREVER, (PartID)&handle, REFMSG_GET_NODE_HANDLE);
+        INode* node = GetCOREInterface()->GetINodeByHandle(handle);
+        return node;
+    };
+    INodeTab nodes;
+
+    const auto firstNode = getNodeFromObject(modelObj);
+    if (!firstNode) {
+        return;
+    }
+
+    IInstanceMgr::GetInstanceMgr()->GetInstances(*firstNode, nodes);
+
+    // Now apply the material on the node that is currently selected. We assume that only
+    // one will be selected, as UI is accessible at the time when the button is pressed.
+    for (int i = 0; i < nodes.Count(); ++i) {
+        if (nodes[i] && nodes[i]->Selected()) {
+            const auto usdPreviewSurfaceMtls = modelObj->GetUsdPreviewSurfaceMaterials(true);
+            nodes[i]->SetMtl(usdPreviewSurfaceMtls);
+            // If we have UI accessible, only expect a single selected node.
+            break;
+        }
+    }
+}
diff --git a/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.h b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.h
new file mode 100644
index 0000000..e99c013
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.h
@@ -0,0 +1,53 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageRenderSettingsRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageRenderSettingsRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageRenderSettingsRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdStageRenderSettingsRollup();
+
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    void UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_AssignMtlToNodeButton_clicked() const;
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageRenderSettingsRollup> ui {
+        std::make_unique<Ui::UsdStageRenderSettingsRollup>()
+    };
+    // USDStageObject model pointer
+    USDStageObject* modelObj;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.ui b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.ui
new file mode 100644
index 0000000..2a99e03
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageRenderSettingsRollup.ui
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageRenderSettingsRollup</class>
+ <widget class="QWidget" name="UsdStageRenderSettingsRollup">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>140</width>
+    <height>60</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_4">
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Materials:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPushButton" name="AssignMtlToNodeButton">
+     <property name="toolTip">
+      <string>Generates and assigns USDPreviewSurface materials to the USD Stage Node. This lets you work with offline renderers that do not support USD directly.&lt;br&gt;&lt;strong&gt;Warning: This process overrides the material currently assigned to the node referencing the stage.&lt;/strong&gt;</string>
+     </property>
+     <property name="text">
+      <string>Assign USD Materials</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.cpp b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.cpp
new file mode 100644
index 0000000..5453dd8
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.cpp
@@ -0,0 +1,102 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageViewportDisplayRollup.h"
+
+#include "Ui_UsdStageViewportDisplayRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <iparamb2.h>
+#include <maxicon.h>
+
+using namespace MaxSDK;
+
+UsdStageViewportDisplayRollup::UsdStageViewportDisplayRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageViewportDisplayRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+
+
+    ui->setupUi(this);
+    modelObj = static_cast<USDStageObject*>(&owner);
+
+    ui->DisplayMode->addItem(
+        tr("3ds Max Wire Color"), HdMaxDisplaySettings::DisplayMode::WireColor);
+    ui->DisplayMode->addItem(
+        tr("USD Display Color"), HdMaxDisplaySettings::DisplayMode::USDDisplayColor);
+    ui->DisplayMode->addItem(
+        tr("USD Preview Surface"), HdMaxDisplaySettings::DisplayMode::USDPreviewSurface);
+
+    ui->PointInstancesDrawModesRebuildButton->setIcon(
+        MaxSDK::LoadMaxMultiResIcon(MSTR(_T("StateSets\\Refresh.png"))));
+    const int iconSize = MaxSDK::UIScaled(16);
+    ui->PointInstancesDrawModesRebuildButton->setIconSize(QSize(iconSize, iconSize));
+
+    ui->PointInstancesDrawMode->addItem(tr("Default"), 0);
+    ui->PointInstancesDrawMode->addItem(tr("Cards (Box)"), 1);
+    ui->PointInstancesDrawMode->addItem(tr("Cards (Cross)"), 2);
+}
+
+UsdStageViewportDisplayRollup::~UsdStageViewportDisplayRollup() { }
+
+void UsdStageViewportDisplayRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+}
+
+void UsdStageViewportDisplayRollup::UpdateUI(const TimeValue t)
+{
+    UpdateParameterUI(GetCOREInterface()->GetTime(), DisplayMode, t);
+}
+
+void UsdStageViewportDisplayRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (DisplayMode == paramId) {
+        int      value = 0;
+        Interval valid;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+        ui->DisplayMode->setCurrentIndex(value);
+    }
+
+    if (PointInstancesDrawMode == paramId) {
+        int      value = 0;
+        Interval valid;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+        ui->PointInstancesDrawMode->setCurrentIndex(value);
+    }
+}
+
+void UsdStageViewportDisplayRollup::on_InvertProxyRenderButton_clicked()
+{
+    // Toggle the checked state of the DisplayProxy and DisplayRender checkboxes
+    theHold.SuperBegin();
+    ui->DisplayProxy->setChecked(!ui->DisplayProxy->isChecked());
+    ui->DisplayRender->setChecked(!ui->DisplayRender->isChecked());
+    theHold.SuperAccept(_T("Invert Display Purpose"));
+}
+
+void UsdStageViewportDisplayRollup::on_PointInstancesDrawModesRebuildButton_clicked() const
+{
+    modelObj->GenerateDrawModes();
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.h b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.h
new file mode 100644
index 0000000..3dfdb71
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.h
@@ -0,0 +1,54 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageViewportDisplayRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageViewportDisplayRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageViewportDisplayRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdStageViewportDisplayRollup();
+
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    void UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_InvertProxyRenderButton_clicked();
+    void on_PointInstancesDrawModesRebuildButton_clicked() const;
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageViewportDisplayRollup> ui {
+        std::make_unique<Ui::UsdStageViewportDisplayRollup>()
+    };
+    // USDStageObject model pointer
+    USDStageObject* modelObj;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.ui b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.ui
new file mode 100644
index 0000000..694b9cf
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportDisplayRollup.ui
@@ -0,0 +1,211 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageViewportDisplayRollup</class>
+ <widget class="QWidget" name="UsdStageViewportDisplayRollup">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>195</width>
+    <height>208</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="0">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetMaximumSize</enum>
+     </property>
+     <item>
+      <widget class="QComboBox" name="DisplayMode"/>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="DisplayGroupBox">
+     <property name="title">
+      <string>Display Purpose</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_4">
+      <item row="1" column="0">
+       <widget class="Line" name="line">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QCheckBox" name="DisplayGuide">
+        <property name="layoutDirection">
+         <enum>Qt::LeftToRight</enum>
+        </property>
+        <property name="text">
+         <string>Guide</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="1" column="0">
+         <widget class="QCheckBox" name="DisplayRender">
+          <property name="layoutDirection">
+           <enum>Qt::LeftToRight</enum>
+          </property>
+          <property name="text">
+           <string>Render</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="0">
+         <widget class="QCheckBox" name="DisplayProxy">
+          <property name="layoutDirection">
+           <enum>Qt::LeftToRight</enum>
+          </property>
+          <property name="text">
+           <string>Proxy</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1" rowspan="2">
+         <widget class="QToolButton" name="InvertProxyRenderButton">
+          <property name="toolTip">
+           <string>Click to invert selection states of Proxy and Render. Use this to quickly toggle between Proxy and Render purposes or to turn both on and off.</string>
+          </property>
+          <property name="text">
+           <string>Invert</string>
+          </property>
+          <property name="checkable">
+           <bool>false</bool>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Create Draw Mode</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <item row="0" column="0">
+       <widget class="QCheckBox" name="GeneratePointInstancesDrawModes">
+        <property name="toolTip">
+         <string>Enable to create a draw mode for point instances in the session layer.</string>
+        </property>
+        <property name="text">
+         <string>Point Instances</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" colspan="3">
+       <widget class="QComboBox" name="PointInstancesDrawMode">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="toolTip">
+         <string>Select a draw mode representation.</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QToolButton" name="PointInstancesDrawModesRebuildButton">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="toolTip">
+         <string>Refresh to create a draw mode for newly added point instances.</string>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>24</width>
+          <height>24</height>
+         </size>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="ShowIcon">
+     <property name="title">
+      <string>Icon</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0" alignment="Qt::AlignRight">
+       <widget class="QLabel" name="IconScaleLabel">
+        <property name="layoutDirection">
+         <enum>Qt::LeftToRight</enum>
+        </property>
+        <property name="text">
+         <string>Scale</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="MaxSDK::QmaxDoubleSpinBox" name="IconScale"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QmaxDoubleSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header location="global">Qt/QmaxSpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.cpp b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.cpp
new file mode 100644
index 0000000..4fe701c
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.cpp
@@ -0,0 +1,73 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdStageViewportPerformanceRollup.h"
+
+#include "Ui_UsdStageViewportPerformanceRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <GetCOREInterface.h>
+#include <iparamb2.h>
+#include <maxapi.h>
+
+using namespace MaxSDK;
+
+UsdStageViewportPerformanceRollup::UsdStageViewportPerformanceRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageViewportPerformanceRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+
+    ui->setupUi(this);
+    modelObj = static_cast<USDStageObject*>(&owner);
+
+    ui->gridLayout_2->setContentsMargins(QMargins(0, MaxSDK::UIScaled(11), 0, MaxSDK::UIScaled(9)));
+
+    ui->MeshMergeMode->addItem(tr("Static"), static_cast<int>(HdMaxConsolidator::Strategy::Static));
+    ui->MeshMergeMode->addItem(
+        tr("Dynamic"), static_cast<int>(HdMaxConsolidator::Strategy::Dynamic));
+    ui->MeshMergeMode->addItem(tr("Off"), static_cast<int>(HdMaxConsolidator::Strategy::Off));
+}
+
+UsdStageViewportPerformanceRollup::~UsdStageViewportPerformanceRollup() { }
+
+void UsdStageViewportPerformanceRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+}
+
+void UsdStageViewportPerformanceRollup::UpdateUI(const TimeValue t)
+{
+    UpdateParameterUI(GetCOREInterface()->GetTime(), MeshMergeMode, t);
+}
+
+void UsdStageViewportPerformanceRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (MeshMergeMode == paramId) {
+
+        int      value = 0;
+        Interval valid;
+        paramBlock->GetValue(paramId, GetCOREInterface()->GetTime(), value, valid);
+        ui->MeshMergeMode->setCurrentIndex(value);
+    }
+}
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.h b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.h
new file mode 100644
index 0000000..d2c019f
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.h
@@ -0,0 +1,51 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageViewportPerformanceRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageViewportPerformanceRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageViewportPerformanceRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    virtual ~UsdStageViewportPerformanceRollup();
+
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    void UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+public Q_SLOTS:
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageViewportPerformanceRollup> ui {
+        std::make_unique<Ui::UsdStageViewportPerformanceRollup>()
+    };
+    // USDStageObject model pointer
+    USDStageObject* modelObj;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.ui b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.ui
new file mode 100644
index 0000000..12e2fa5
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportPerformanceRollup.ui
@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageViewportPerformanceRollup</class>
+ <widget class="QWidget" name="UsdStageViewportPerformanceRollup">
+  <layout class="QGridLayout" name="gridLayout" columnstretch="1,1">
+   <item row="2" column="1">
+    <widget class="MaxSDK::QmaxSpinBox" name="MaxMergedMeshTriangles"/>
+   </item>
+   <item row="2" column="0" alignment="Qt::AlignRight">
+    <widget class="QLabel" name="MaxMergedMeshTrianglesLabel">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>30</height>
+      </size>
+     </property>
+     <property name="toolTip">
+      <string>Defines the maximum size in triangles for a single merged mesh.&lt;br&gt;&lt;b&gt;Note:&lt;/b&gt; Single merged meshes will remain under the amount of triangles entered in this spinner.</string>
+     </property>
+     <property name="text">
+      <string>Max Size</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QCheckBox" name="MeshMergeDiagnosticView">
+     <property name="toolTip">
+      <string>Enable to visualize the mesh merge results.&lt;br&gt;&lt;b&gt;Note:&lt;/b&gt; Each merged mesh is represented in a single color.</string>
+     </property>
+     <property name="layoutDirection">
+      <enum>Qt::LeftToRight</enum>
+     </property>
+     <property name="text">
+      <string>Visualize</string>
+     </property>
+     <property name="tristate">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0" colspan="2">
+    <widget class="QGroupBox" name="MergeThresholdsGroup">
+     <property name="title">
+      <string>Merge Thresholds</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2" columnstretch="1,1">
+      <item row="0" column="0">
+       <widget class="QLabel" name="MeshMergeMaxTrianglesLabel">
+        <property name="toolTip">
+         <string>Maximum triangle size to consider a mesh for merging with other meshes.&lt;br&gt;&lt;b&gt;Note:&lt;/b&gt; Individual USD meshes that have more triangles than this value will not be included in merge operations.</string>
+        </property>
+        <property name="text">
+         <string>Mesh Size</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="MaxSDK::QmaxSpinBox" name="MeshMergeMaxTriangles"/>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="MeshMergeMaxInstancesLabel">
+        <property name="toolTip">
+         <string>Defines the maximum of times a mesh can be instanced for it to be merged.&lt;br&gt;&lt;b&gt;Note:&lt;/b&gt; If more instances exist in the USD Stage than the value entered, those will not be merged together.</string>
+        </property>
+        <property name="text">
+         <string>Instances</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="MaxSDK::QmaxSpinBox" name="MeshMergeMaxInstances"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QComboBox" name="MeshMergeMode"/>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="MeshMergeModeLabel">
+     <property name="toolTip">
+      <string>Merge meshes based on common material to improve display performances.&lt;br&gt;Choose &lt;b&gt;Static&lt;/b&gt; for a single merge operation or &lt;b&gt;Dynamic&lt;/b&gt; for a merge operation at every frame update.</string>
+     </property>
+     <property name="text">
+      <string>Mesh Merge</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QmaxSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header location="global">Qt/QmaxSpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.cpp b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.cpp
new file mode 100644
index 0000000..9040f41
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.cpp
@@ -0,0 +1,225 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "UsdStageViewportSelectionRollup.h"
+
+#include "Ui_UsdStageViewportSelectionRollup.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <RenderDelegate/HdMaxDisplayPreferences.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/kind/registry.h>
+
+#include <Qt/QMaxColorSwatch.h>
+
+#include <GetCOREInterface.h>
+#include <iparamb2.h>
+#include <maxapi.h>
+#include <notify.h>
+
+using namespace MaxSDK;
+
+static void NotifySubObjectLevelChanged(void* param, NotifyInfo* info)
+{
+    if (!info->callParam) {
+        return;
+    }
+    const auto rollup = static_cast<UsdStageViewportSelectionRollup*>(param);
+    rollup->UpdateSelectionMode();
+}
+
+UsdStageViewportSelectionRollup::UsdStageViewportSelectionRollup(
+    ReferenceMaker& owner,
+    IParamBlock2&   paramBlock)
+    : ui(new Ui::UsdStageViewportSelectionRollup)
+{
+    SetParamBlock((ReferenceMaker*)&owner, (IParamBlock2*)&paramBlock);
+    ui->setupUi(this);
+    modelObj = static_cast<USDStageObject*>(&owner);
+
+    connect(ui->stageRadioButton, &QRadioButton::toggled, [this](bool checked) {
+        if (checked) {
+            GetCOREInterface()->SetSubObjectLevel(static_cast<int>(SelectionMode::Stage));
+        }
+    });
+    connect(ui->primRadioButton, &QRadioButton::toggled, [this](bool checked) {
+        if (checked) {
+            GetCOREInterface()->SetSubObjectLevel(static_cast<int>(SelectionMode::Prim));
+        }
+    });
+
+    const auto selectionLevel = static_cast<SelectionMode>(modelObj->GetSubObjectLevel());
+    selectionLevel == SelectionMode::Stage ? ui->stageRadioButton->setChecked(true)
+                                           : ui->primRadioButton->setChecked(true);
+
+    RegisterNotification(NotifySubObjectLevelChanged, this, NOTIFY_MODPANEL_SUBOBJECTLEVEL_CHANGED);
+
+    // Kind selection UI setup.
+    const static auto                      noneToken = pxr::TfToken("none");
+    const static std::vector<pxr::TfToken> baseKindEntries = { noneToken,
+                                                               pxr::KindTokens->model,
+                                                               pxr::KindTokens->subcomponent,
+                                                               pxr::KindTokens->component,
+                                                               pxr::KindTokens->group,
+                                                               pxr::KindTokens->assembly };
+
+    // First add the basic kinds.
+    int kindIdx = 0;
+    for (const auto& baseKind : baseKindEntries) {
+        ui->kindSelection->addItem(baseKind.GetString().c_str(), kindIdx);
+        kindIdx++;
+    }
+
+    // Custom kinds.
+    for (const auto& kind : pxr::KindRegistry::GetAllKinds()) {
+        if (std::find(baseKindEntries.begin(), baseKindEntries.end(), kind)
+            != baseKindEntries.end()) {
+            continue;
+        }
+        ui->kindSelection->addItem(kind.GetString().c_str(), kindIdx);
+        kindIdx++;
+    }
+
+    connect(
+        ui->kindSelection,
+        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+        [this](int index) {
+            // Update the param block.
+            const auto& kindStr = ui->kindSelection->itemText(index).toStdString();
+            const WStr  kindParam = kindStr == noneToken.GetString()
+                 ? WStr {}
+                 : MaxUsd::UsdStringToMaxString(kindStr);
+
+            const MCHAR* currentKindParam = nullptr;
+            Interval     valid = FOREVER;
+            this->paramBlock->GetValue(
+                KindSelection, GetCOREInterface()->GetTime(), currentKindParam, valid);
+
+            // If we changed the index programmatically in reaction to the parameter changing, we
+            // dont need to do anything more.
+            if (kindParam == currentKindParam) {
+                return;
+            }
+
+            // Usability short hand, if the user selects a kind selection mode, auto-switch to prim
+            // subobject level.
+            GetCOREInterface()->SetSubObjectLevel(static_cast<int>(SelectionMode::Prim));
+            // Update the PB with the new kind!
+            if (!theHold.Holding()) {
+                theHold.Begin();
+                this->paramBlock->SetValueByName(L"KindSelection", kindParam, 0);
+                theHold.Accept(_T("Kind Selection Parameter Change"));
+            } else {
+                this->paramBlock->SetValueByName(L"KindSelection", kindParam, 0);
+            }
+        });
+
+    ui->selectionHighlightCheckbox->setChecked(
+        HdMaxDisplayPreferences::GetInstance().GetSelectionHighlightEnabled());
+    ui->selectionColorSwatch->setValue(HdMaxDisplayPreferences::GetInstance().GetSelectionColor());
+
+    connect(ui->selectionHighlightCheckbox, &QCheckBox::toggled, [this](bool checked) {
+        HdMaxDisplayPreferences::GetInstance().SetSelectionHighlightEnabled(checked);
+        // Notify and complete redraw so that all usd stage objects get redrawn. We need to notify,
+        // as internally we need to now use different render items / update selection buffers.
+        BroadcastNotification(NOTIFY_SELECTION_HIGHLIGHT_ENABLED_CHANGED);
+        GetCOREInterface()->ForceCompleteRedraw();
+    });
+
+    connect(
+        ui->selectionColorSwatch, &QMaxColorSwatch::valueChanged, [this](const AColor& newColor) {
+            HdMaxDisplayPreferences::GetInstance().SetSelectionColor(newColor);
+            // If only the color changed, only need to redraw.
+            GetCOREInterface()->ForceCompleteRedraw();
+        });
+}
+
+UsdStageViewportSelectionRollup::~UsdStageViewportSelectionRollup()
+{
+    UnRegisterNotification(
+        NotifySubObjectLevelChanged, this, NOTIFY_MODPANEL_SUBOBJECTLEVEL_CHANGED);
+}
+
+void UsdStageViewportSelectionRollup::SetParamBlock(
+    ReferenceMaker*     owner,
+    IParamBlock2* const paramBlock)
+{
+    this->paramBlock = paramBlock;
+    modelObj = static_cast<USDStageObject*>(owner);
+}
+
+void UsdStageViewportSelectionRollup::UpdateUI(const TimeValue t)
+{
+    UpdateParameterUI(GetCOREInterface()->GetTime(), KindSelection, t);
+}
+
+void UsdStageViewportSelectionRollup::UpdateParameterUI(
+    const TimeValue t,
+    const ParamID   paramId,
+    const int /*tabIndex*/)
+{
+    if (KindSelection == paramId) {
+        // Get the new kind to select.
+        const MCHAR* kindSelectionPb = nullptr;
+        Interval     valid = FOREVER;
+        paramBlock->GetValue(KindSelection, GetCOREInterface()->GetTime(), kindSelectionPb, valid);
+
+        // Find its index in the combobox.
+        const auto kindStr = MaxUsd::MaxStringToUsdString(kindSelectionPb);
+
+        auto findNewIndex = [this, kindStr] {
+            if (kindStr.empty()) {
+                return 0;
+            }
+
+            for (int i = 0; i < ui->kindSelection->count(); ++i) {
+                if (ui->kindSelection->itemText(i).toStdString() == kindStr) {
+                    return i;
+                }
+            }
+            DbgAssert(0 && "Invalid kind set for selection.");
+            return 0;
+        };
+
+        const int newIdx = findNewIndex();
+
+        // Only update the index if it actually changed, to avoid QT signal noise.
+        if (newIdx != ui->kindSelection->currentIndex()) {
+            ui->kindSelection->setCurrentIndex(newIdx);
+        }
+    }
+}
+
+void UsdStageViewportSelectionRollup::UpdateSelectionMode() const
+{
+    const auto level = GetCOREInterface()->GetSubObjectLevel();
+    switch (level) {
+    // Stage
+    case 0:
+        ui->stageRadioButton->setChecked(true);
+        ui->primRadioButton->setChecked(false);
+        break;
+    case 1:
+        // Prim
+        ui->stageRadioButton->setChecked(false);
+        ui->primRadioButton->setChecked(true);
+        break;
+    default: DbgAssert(0 && "Unsupported sub-object level");
+    }
+}
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.h b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.h
new file mode 100644
index 0000000..866a2a2
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <Qt/QMaxParamBlockWidget.h>
+
+namespace Ui {
+class UsdStageViewportSelectionRollup;
+}
+
+class IParamBlock2;
+
+class UsdStageViewportSelectionRollup : public MaxSDK::QMaxParamBlockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit UsdStageViewportSelectionRollup(ReferenceMaker& owner, IParamBlock2& paramBlock);
+    ~UsdStageViewportSelectionRollup() override;
+
+    void SetParamBlock(ReferenceMaker* owner, IParamBlock2* const paramBlock) override;
+    void UpdateUI(const TimeValue t) override;
+    void UpdateParameterUI(const TimeValue t, const ParamID paramId, const int tabIndex) override;
+
+    void UpdateSelectionMode() const;
+
+private:
+    /// Model ParamBlock pointer
+    IParamBlock2* paramBlock = nullptr;
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdStageViewportSelectionRollup> ui {
+        std::make_unique<Ui::UsdStageViewportSelectionRollup>()
+    };
+    // USDStageObject model pointer
+    USDStageObject* modelObj;
+};
\ No newline at end of file
diff --git a/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.ui b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.ui
new file mode 100644
index 0000000..383fcab
--- /dev/null
+++ b/src/MaxUsdObjects/Views/UsdStageViewportSelectionRollup.ui
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdStageViewportSelectionRollup</class>
+ <widget class="QWidget" name="UsdStageViewportSelectionRollup">
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="selectionLevelGroup">
+     <property name="title">
+      <string>Selection Level</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QRadioButton" name="stageRadioButton">
+        <property name="text">
+         <string>Stage</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="primRadioButton">
+        <property name="text">
+         <string>Prim</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="byKindGroup">
+     <property name="title">
+      <string>By Kind</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_3">
+      <item>
+       <widget class="QComboBox" name="kindSelection"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="highlightGroup">
+     <property name="title">
+      <string>Show Highlight</string>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QCheckBox" name="selectionHighlightCheckbox">
+        <property name="text">
+         <string>Selection</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="MaxSDK::QMaxColorSwatch" name="selectionColorSwatch">
+       </widget>
+      </item>	  
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QMaxColorSwatch</class>
+   <extends>QWidget</extends>
+   <header location="global">Qt/QMaxColorSwatch.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/MaxUsdObjects/maxusdobjects_banned.h b/src/MaxUsdObjects/maxusdobjects_banned.h
new file mode 100644
index 0000000..10ea51f
--- /dev/null
+++ b/src/MaxUsdObjects/maxusdobjects_banned.h
@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Bring base_type type from boost, conflicting with Max base_type macro
+#pragma warning(push)
+#pragma warning(disable : 26439)
+#include <pxr/base/tf/notice.h>
+#pragma warning(pop)
+
+#include <usd_banned.h>
\ No newline at end of file
diff --git a/src/MaxUsdObjects/resource.h b/src/MaxUsdObjects/resource.h
new file mode 100644
index 0000000..e91e5eb
--- /dev/null
+++ b/src/MaxUsdObjects/resource.h
@@ -0,0 +1,106 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by resource.rc
+//
+#define IDS_LIBDESCRIPTION                                           1
+#define IDS_CATEGORY                                                 2
+#define IDS_USD_CATEGORY                                             3
+#define IDS_USDSTAGEOBJECT_CLASS_NAME                                4
+#define IDS_USDSTAGEOBJECT_ROLL_OUT                                  5
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_FILEPATH                         6
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_STAGE_MASK                       7
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CACHEID                          8
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_GUID                             9
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_GUIDE                    10
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_RENDER                   11
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_PROXY                    12
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_AXIS_AND_UNIT_TRANSFORM          13
+#define IDS_USDSTAGE_ASSET_DESC                                      14
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MODE               15
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_TRIANGLES      16
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_CELL_SIZE      17
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_INSTANCE_COUNT 18
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_PARAMETERS_TITLE                 19
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_DISPLAY_TITLE           20
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_PERFORMANCE_TITLE       21
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_ANIMATION_TITLE                  22
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_DIAGNOSTICS        23
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_LOAD_PAYLOADS                    24
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_METERS_PER_UNIT                  25
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_METERS_PER_UNIT           26
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_UP_AXIS                          27
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_UP_AXIS                   28
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SHOW_ICON                        29
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_ICON_SCALE                       30
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_MODE                     31
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_GEN_POINT_INSTANCE_DRAW_MODES    32
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_POINT_INSTANCE_DRAW_MODE         33
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_POINTED_PRIM                     34
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_START_FRAME          35
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_SPEED                36
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_END_FRAME            37
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_PLAYBACK_TIMECODE    38
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_ANIM_MODE                        39
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_START_TIME_CODE      40
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_END_TIME_CODE        41
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_TPS                  42
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_START_FRAME             43
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_END_FRAME               44
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_FPS                     45
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_RENDER_USD_TIMECODE     46
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_RENDER_SETUP_TITLE               47
+#define IDS_USDSTAGEOBJECT_BUILD_MATERIALS_PROGRESS_TITLE            48
+#define IDS_USDSTAGEOBJECT_BUILD_STD_VP_MATERIALS_PROGRESS_TITLE     49
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_SELECTION_SETUP_TITLE   50
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_GENERATE_CAMERAS                 51
+#define IDS_SELECTLAYERANDPRIM                                       52
+#define IDS_OPENUSDEXPLORER                                          53
+#define IDS_CLOSEUSDEXPLORER                                         54
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_IS_OPEN_IN_EXPLORER              55
+#define IDS_USDSTAGEOBJECT_ROLL_OUT_KIND_SELECTION                   56
+#define IDS_USDXFORMCONTROLLER_CLASS_NAME                            57
+#define IDS_USDCONTROLLER_USDSTAGE_PARAM                             58
+#define IDS_USDXFORMCONTROLLER_XFORMABLEPATH_PARAM                   59
+#define IDS_USDXFORMCONTROLLER_PREVENTSNODEDELETION_PARAM            60
+#define IDS_USDTRANSFORMCONTROLLER_PATH_PARAM                        61
+#define IDS_USDPOSITIONCONTROLLER_CLASS_NAME                         62
+#define IDS_USDROTATIONCONTROLLER_CLASS_NAME                         63
+#define IDS_USDSCALECONTROLLER_CLASS_NAME                            64
+#define IDS_USDATTRCONTROLLER_PATH_PARAM                             65
+#define IDS_USDFLOATCONTROLLER_CLASS_NAME                            66
+#define IDS_USDPOINT3CONTROLLER_CLASS_NAME                           67
+#define IDS_USDPOINT4CONTROLLER_CLASS_NAME                           68
+#define IDS_USDCAMERA_ROLL_OUT                                       69
+#define IDS_USDCAMERA_USDSTAGE_PARAM                                 70
+#define IDS_USDCAMERA_CAMERAPATH_PARAM                               71
+#define IDS_USDSNAPS_CLASS_NAME                                      72
+#define IDS_USDSNAPS_VERTEX                                          73
+#define IDS_USDSNAPS_EDGE                                            74
+#define IDS_USDSNAPS_FACE                                            75
+#define IDS_PARAMS                                                   76
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE 101
+#define _APS_NEXT_COMMAND_VALUE  40001
+#define _APS_NEXT_CONTROL_VALUE  1001
+#define _APS_NEXT_SYMED_VALUE    101
+#endif
+#endif
diff --git a/src/MaxUsdObjects/resource.qrc b/src/MaxUsdObjects/resource.qrc
new file mode 100644
index 0000000..f56ff67
--- /dev/null
+++ b/src/MaxUsdObjects/resource.qrc
@@ -0,0 +1,40 @@
+<RCC>
+    <qresource prefix="/ufe">
+        <file>Icons/branch_closed.png</file>
+        <file>Icons/branch_opened.png</file>
+        <file alias="Icons/UfeRt/out_USD_BlendShape.png">Icons/UfeRt/out_USD_BlendShape_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Camera.png">Icons/UfeRt/out_USD_Camera_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Capsule.png">Icons/UfeRt/out_USD_Capsule_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_CompArcBadge.png">Icons/UfeRt/out_USD_CompArcBadge_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_CompArcBadgeV.png">Icons/UfeRt/out_USD_CompArcBadgeV_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Cone.png">Icons/UfeRt/out_USD_Cone_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Cube.png">Icons/UfeRt/out_USD_Cube_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Cylinder.png">Icons/UfeRt/out_USD_Cylinder_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Def.png">Icons/UfeRt/out_USD_Def_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_GeomSubset.png">Icons/UfeRt/out_USD_GeomSubset_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_LightFilter.png">Icons/UfeRt/out_USD_LightFilter_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_LightPortal.png">Icons/UfeRt/out_USD_LightPortal_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Material.png">Icons/UfeRt/out_USD_Material_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Mesh.png">Icons/UfeRt/out_USD_Mesh_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_NurbsPatch.png">Icons/UfeRt/out_USD_NurbsPatch_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_PluginLight.png">Icons/UfeRt/out_USD_PluginLight_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_PointInstancer.png">Icons/UfeRt/out_USD_PointInstancer_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Points.png">Icons/UfeRt/out_USD_Points_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Scope.png">Icons/UfeRt/out_USD_Scope_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Shader.png">Icons/UfeRt/out_USD_Shader_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_SkelAnimation.png">Icons/UfeRt/out_USD_SkelAnimation_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Skeleton.png">Icons/UfeRt/out_USD_Skeleton_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_SkelRoot.png">Icons/UfeRt/out_USD_SkelRoot_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Sphere.png">Icons/UfeRt/out_USD_Sphere_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_UsdGeomCurves.png">Icons/UfeRt/out_USD_UsdGeomCurves_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_UsdGeomXformable.png">Icons/UfeRt/out_USD_UsdGeomXformable_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_UsdLuxBoundableLightBase.png">Icons/UfeRt/out_USD_UsdLuxBoundableLightBase_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_UsdLuxNonboundableLightBase.png">Icons/UfeRt/out_USD_UsdLuxNonboundableLightBase_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_UsdTyped.png">Icons/UfeRt/out_USD_UsdTyped_200.png</file>
+        <file alias="Icons/UfeRt/out_USD_Volume.png">Icons/UfeRt/out_USD_Volume_200.png</file>
+        <file>Icons/hidden.png</file>
+        <file>Icons/hiddenInherit.png</file>
+        <file>Icons/visibleInherit.png</file>
+        <file>Icons/visible.png</file>
+    </qresource>
+</RCC>
diff --git a/src/MaxUsdObjects/resource.rc b/src/MaxUsdObjects/resource.rc
new file mode 100644
index 0000000..e748625
--- /dev/null
+++ b/src/MaxUsdObjects/resource.rc
@@ -0,0 +1,167 @@
+// Microsoft Visual C++ generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// String Table
+//
+
+STRINGTABLE
+BEGIN
+    IDS_LIBDESCRIPTION      "USD Stage Object"
+    IDS_CATEGORY            "USD"
+    IDS_USD_CATEGORY        "USD"
+    IDS_USDSTAGEOBJECT_CLASS_NAME "USD Stage" 
+
+    IDS_USDCONTROLLER_USDSTAGE_PARAM "USD Stage Node"
+    IDS_USDXFORMCONTROLLER_CLASS_NAME "USD Xformable"
+    IDS_USDXFORMCONTROLLER_XFORMABLEPATH_PARAM "Xformable Prim Path" 
+    IDS_USDXFORMCONTROLLER_PREVENTSNODEDELETION_PARAM "Prevent Node Deletion"
+
+    IDS_USDTRANSFORMCONTROLLER_PATH_PARAM "Xformable or Attribute Path"
+    IDS_USDPOSITIONCONTROLLER_CLASS_NAME "USD Position"
+    IDS_USDROTATIONCONTROLLER_CLASS_NAME "USD Rotation"
+    IDS_USDSCALECONTROLLER_CLASS_NAME "USD Scale"
+
+    IDS_USDATTRCONTROLLER_PATH_PARAM "Attribute Path"
+    IDS_USDFLOATCONTROLLER_CLASS_NAME "USD Float"
+    IDS_USDPOINT3CONTROLLER_CLASS_NAME "USD Point3"
+    IDS_USDPOINT4CONTROLLER_CLASS_NAME "USD Point4"
+
+    IDS_USDCAMERA_ROLL_OUT "USD Camera" 
+    IDS_USDCAMERA_USDSTAGE_PARAM "USD Stage Node"
+    IDS_USDCAMERA_CAMERAPATH_PARAM "USD Camera Prim Path"
+    IDS_USDSTAGEOBJECT_ROLL_OUT "USD Stage"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_FILEPATH "Stage path"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_STAGE_MASK "Stage mask"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CACHEID "Cache Id"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_GUID "Guid for the UsdStageObject"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_IS_OPEN_IN_EXPLORER "If the stage object is currently opened in the explorer."
+    IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_GUIDE "Display Guide"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_RENDER "Display Render"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_PROXY "Display Proxy"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_LOAD_PAYLOADS "Load Payloads"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_METERS_PER_UNIT "Meters per Unit"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_UP_AXIS "Up Axis" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_METERS_PER_UNIT	"Source Meters per Unit" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_UP_AXIS "Source Up Axis"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_DISPLAY_MODE "Display Mode"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_GEN_POINT_INSTANCE_DRAW_MODES "Generate Point Instances Draw Modes"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_POINT_INSTANCE_DRAW_MODE "Active Point Instances Draw Mode"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_START_FRAME "Custom Start Frame"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_SPEED "Custom Animation Speed"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_END_FRAME "Custom End Frame"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CUSTOM_ANIM_PLAYBACK_TIMECODE "Custom Playback TimeCode"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_ANIM_MODE "Animation Mode"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_START_TIME_CODE "Source Animation Start TimeCode" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_END_TIME_CODE "Source Animation End TimeCode" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SOURCE_ANIM_TPS "Source Animation TPS (TimeCode Per Second)" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_START_FRAME "3dsMax Animation Start Frame" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_END_FRAME "3dsMax Animation End Frame"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_FPS "3dsMax Animation FPS (Frames Per Second)" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_MAX_ANIM_RENDER_USD_TIMECODE "Resolved Render Usd TimeCode"
+
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MODE "Performance mesh merge mode."
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_TRIANGLES "The maximum number of triangles a prim can have to be considered for merging."
+	IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_CELL_SIZE "The maximum number of triangles in a merged mesh."
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_MAX_INSTANCE_COUNT "The maximum number of instances for a prim to be considered for merging."
+    IDS_USDSTAGEOBJECT_ROLL_OUT_CONSOLIDATION_DIAGNOSTICS "Debug view of the merged meshes."
+
+    IDS_USDSTAGEOBJECT_ROLL_OUT_PARAMETERS_TITLE "Parameters"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_DISPLAY_TITLE "Viewport Display"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_PERFORMANCE_TITLE "Viewport Performance"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_ANIMATION_TITLE "Animation"
+
+    IDS_USDSTAGEOBJECT_ROLL_OUT_AXIS_AND_UNIT_TRANSFORM "Axis and Unit transform"
+    IDS_USDSTAGE_ASSET_DESC "USD Layer"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_SHOW_ICON "Show Icon" 
+    IDS_USDSTAGEOBJECT_ROLL_OUT_GENERATE_CAMERAS "Generate Cameras"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_ICON_SCALE "Icon Scale"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_POINTED_PRIM "Currently pointed USD Prim"
+
+    IDS_USDSTAGEOBJECT_ROLL_OUT_RENDER_SETUP_TITLE "Fallback Render Support"
+
+    IDS_USDSTAGEOBJECT_ROLL_OUT_VIEWPORT_SELECTION_SETUP_TITLE "Viewport Selection"
+    IDS_USDSTAGEOBJECT_ROLL_OUT_KIND_SELECTION "Kind Selection"
+
+    IDS_SELECTLAYERANDPRIM "Select an USD file via file selection dialog then allow for the selection of a Prim, returns the path to the USD file and the path to the selected Prim in an array of strings."
+    IDS_OPENUSDEXPLORER "Open the USD Explorer dialog."
+    IDS_CLOSEUSDEXPLORER "Close the USD Explorer dialog."
+
+    IDS_USDSNAPS_CLASS_NAME "USDSnaps"
+    IDS_USDSNAPS_VERTEX "Vertex"
+    IDS_USDSNAPS_EDGE "Edge"
+    IDS_USDSNAPS_FACE "Face"
+
+    IDS_PARAMS "Parameters"
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (Canada) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENC)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_CAN
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE 
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (Canada) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+#include "VersionOverrides.h"
+#include "../USDComponentVersion.r"
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
+
diff --git a/src/RenderDelegate/DLLEntry.h b/src/RenderDelegate/DLLEntry.h
new file mode 100644
index 0000000..1255451
--- /dev/null
+++ b/src/RenderDelegate/DLLEntry.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <strbasic.h>
+
+extern MCHAR*    GetString(int id);
+extern HINSTANCE hInstance;
diff --git a/src/RenderDelegate/DebugCodes.cpp b/src/RenderDelegate/DebugCodes.cpp
new file mode 100644
index 0000000..86201e2
--- /dev/null
+++ b/src/RenderDelegate/DebugCodes.cpp
@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DebugCodes.h"
+
+#include <pxr/base/tf/registryManager.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_REGISTRY_FUNCTION(TfDebug) { TF_DEBUG_ENVIRONMENT_SYMBOL(HDMAX_DEBUG_MESH, "Debug mesh"); }
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/DebugCodes.h b/src/RenderDelegate/DebugCodes.h
new file mode 100644
index 0000000..8579fd5
--- /dev/null
+++ b/src/RenderDelegate/DebugCodes.h
@@ -0,0 +1,25 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/base/tf/debug.h>
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEBUG_CODES(HDMAX_DEBUG_MESH);
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/DllEntry.cpp b/src/RenderDelegate/DllEntry.cpp
new file mode 100644
index 0000000..167bc00
--- /dev/null
+++ b/src/RenderDelegate/DllEntry.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        MaxSDK::Util::UseLanguagePackLocale();
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
+
+MCHAR* GetString(int id)
+{
+    static MCHAR buf[256];
+
+    if (hInstance)
+        return LoadStringW(hInstance, id, buf, _countof(buf)) ? buf : NULL;
+    return NULL;
+}
diff --git a/src/RenderDelegate/HdMaxChangeTracker.h b/src/RenderDelegate/HdMaxChangeTracker.h
new file mode 100644
index 0000000..0ae3273
--- /dev/null
+++ b/src/RenderDelegate/HdMaxChangeTracker.h
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+class HdMaxChangeTracker
+{
+public:
+    // Dirty bits for the nitrous representation of USD prims.
+    // We need more granularity on the Max side than what is offered by HdChangeTracker dirty bits,
+    // i.e. not only know that the data changed, but also whether the data size changed.
+    enum : pxr::HdDirtyBits
+    {
+        Clean = 0,
+        DirtyIndices = 1 << 0,
+        DirtyIndicesSize = 1 << 1,
+        DirtyPoints = 1 << 2,
+        DirtyPointsSize = 1 << 3,
+        DirtyNormals = 1 << 4,
+        DirtyNormalsSize = 1 << 5,
+        DirtyUvs = 1 << 6,
+        DirtyUvsSize = 1 << 7,
+        DirtyVertexColors = 1 << 8,
+        DirtyVertexColorsSize = 1 << 9,
+        DirtyTransforms = 1 << 10,
+        DirtyTransformsSize = 1 << 11,
+        DirtyVisibility = 1 << 12,
+        DirtyMaterial = 1 << 13,
+        DirtySelectionHighlight = 1 << 14,
+        AllDirty = (1 << 15) - 1,
+    };
+
+    static bool CheckDirty(const pxr::HdDirtyBits& dirtyBits, const pxr::HdDirtyBits& dirtyFlag)
+    {
+        return (dirtyBits & dirtyFlag) != 0;
+    }
+
+    static void SetDirty(pxr::HdDirtyBits& dirtyBits, const pxr::HdDirtyBits& dirtyFlag)
+    {
+        dirtyBits |= dirtyFlag;
+    }
+
+    static void ClearDirtyBits(pxr::HdDirtyBits& dirtyBits)
+    {
+        dirtyBits = HdMaxChangeTracker::Clean;
+    }
+};
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxColorMaterial.cpp b/src/RenderDelegate/HdMaxColorMaterial.cpp
new file mode 100644
index 0000000..04c7d22
--- /dev/null
+++ b/src/RenderDelegate/HdMaxColorMaterial.cpp
@@ -0,0 +1,90 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxColorMaterial.h"
+
+#include <MaxUsd/Utilities/MathUtils.h>
+
+std::map<std::tuple<double, double, double>, MaxSDK::Graphics::StandardMaterialHandle>
+    HdMaxColorMaterial::cacheForSimpleGeometry;
+std::map<std::tuple<double, double, double>, MaxSDK::Graphics::StandardMaterialHandle>
+    HdMaxColorMaterial::cacheForInstances;
+
+const float HdMaxColorMaterial::DiffuseFactor = 0.8f;
+const float HdMaxColorMaterial::AmbientFactor = 0.2f;
+
+const MaxSDK::Graphics::StandardMaterialHandle&
+HdMaxColorMaterial::Get(const pxr::GfVec3f& color, bool forInstances)
+{
+    return Get(color[0], color[1], color[2], forInstances);
+}
+
+const MaxSDK::Graphics::StandardMaterialHandle&
+HdMaxColorMaterial::Get(const Color& color, bool forInstances)
+{
+    return Get(color[0], color[1], color[2], forInstances);
+}
+
+const MaxSDK::Graphics::StandardMaterialHandle&
+HdMaxColorMaterial::Get(float r, float g, float b, bool forInstances)
+{
+    // Round the RGB values to improve caching (dont want to miss out because of float
+    // imprecision...)
+    constexpr double precision = 0.0001;
+    auto             red = MaxUsd::MathUtils::RoundToPrecision(r, precision);
+    auto             green = MaxUsd::MathUtils::RoundToPrecision(g, precision);
+    auto             blue = MaxUsd::MathUtils::RoundToPrecision(b, precision);
+
+    auto colorKey = std::make_tuple(red, green, blue);
+
+    // Get a reference to the cache we should use for materials.
+    // We use two distinct caches for materials applied to instances VS simple geometry because of
+    // an issue with the viewport instancing API. When building the instances, somehow this alters
+    // the material in a way that breaks it for non-instanced geometry...For now we work around this
+    // by making sure this doesn't happen...
+    auto& colorMaterialCache = forInstances ? cacheForInstances : cacheForSimpleGeometry;
+
+    auto it = colorMaterialCache.find(colorKey);
+    if (it != colorMaterialCache.end()) {
+        return it->second;
+    }
+
+    auto nitrousHandle = MaxSDK::Graphics::StandardMaterialHandle {};
+    nitrousHandle.Initialize();
+    nitrousHandle.SetDiffuse(GetDiffuseColor(r, g, b));
+    nitrousHandle.SetAmbient(GetAmbientColor(r, g, b));
+    const auto& inserted = colorMaterialCache.insert({ colorKey, nitrousHandle });
+    return inserted.first->second;
+}
+
+Color HdMaxColorMaterial::GetDiffuseColor(const Color& source)
+{
+    return GetDiffuseColor(source.r, source.g, source.b);
+}
+
+Color HdMaxColorMaterial::GetDiffuseColor(double r, double g, double b)
+{
+    return Color(r * DiffuseFactor, g * DiffuseFactor, b * DiffuseFactor);
+}
+
+Color HdMaxColorMaterial::GetAmbientColor(const Color& source)
+{
+    return GetAmbientColor(source.r, source.g, source.b);
+}
+
+Color HdMaxColorMaterial::GetAmbientColor(double r, double g, double b)
+{
+    return Color(r * AmbientFactor, g * AmbientFactor, b * AmbientFactor);
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxColorMaterial.h b/src/RenderDelegate/HdMaxColorMaterial.h
new file mode 100644
index 0000000..5ebae77
--- /dev/null
+++ b/src/RenderDelegate/HdMaxColorMaterial.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "RenderDelegateAPI.h"
+
+#include <Graphics/StandardMaterialHandle.h>
+
+class RenderDelegateAPI HdMaxColorMaterial
+{
+public:
+    // Multiplier for diffuse and ambient colors, when building a nitrous material from RGB values.
+    static const float DiffuseFactor;
+    static const float AmbientFactor;
+
+    // Get a nitrous material representing a color. Will only create a material if none exist
+    // already for this color. Different materials are required depending on whether the material is
+    // meant for instances or not (different caches are kept).
+    static const MaxSDK::Graphics::StandardMaterialHandle&
+    Get(const pxr::GfVec3f& color, bool forInstances);
+    static const MaxSDK::Graphics::StandardMaterialHandle&
+    Get(const Color& color, bool forInstances);
+    static const MaxSDK::Graphics::StandardMaterialHandle&
+    Get(float r, float g, float b, bool forInstances);
+
+    // Helpers :
+
+    // Get adjusted diffuse and ambient colors, from a source color.
+    static Color GetDiffuseColor(const Color& source);
+    static Color GetDiffuseColor(double r, double g, double b);
+    static Color GetAmbientColor(const Color& source);
+    static Color GetAmbientColor(double r, double g, double b);
+
+private:
+    static std::map<std::tuple<double, double, double>, MaxSDK::Graphics::StandardMaterialHandle>
+        cacheForSimpleGeometry;
+    static std::map<std::tuple<double, double, double>, MaxSDK::Graphics::StandardMaterialHandle>
+        cacheForInstances;
+};
diff --git a/src/RenderDelegate/HdMaxConsolidator.cpp b/src/RenderDelegate/HdMaxConsolidator.cpp
new file mode 100644
index 0000000..7ca6c1d
--- /dev/null
+++ b/src/RenderDelegate/HdMaxConsolidator.cpp
@@ -0,0 +1,1087 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxConsolidator.h"
+
+#include "Imaging/HdMaxRenderDelegate.h"
+#include "SelectionRenderItem.h"
+
+#include <MaxUsd/Utilities/VtUtils.h>
+
+#include <Graphics/CustomRenderItemHandle.h>
+#include <Graphics/StandardMaterialHandle.h>
+
+#include <tbb/parallel_for.h>
+
+HdMaxConsolidator::HdMaxConsolidator(
+    const std::shared_ptr<pxr::HdMaxRenderDelegate>& renderDelegate)
+{
+    this->renderDelegate = renderDelegate;
+}
+
+bool HdMaxConsolidator::Config::operator==(const Config& config) const
+{
+    return this->strategy == config.strategy && this->visualize == config.visualize
+        && this->maxTriangles == config.maxTriangles && this->maxCellSize == config.maxCellSize
+        && this->maxInstanceCount == config.maxInstanceCount
+        && this->displaySettings == config.displaySettings
+        && this->staticDelay == config.staticDelay;
+}
+
+const HdMaxConsolidator::Config& HdMaxConsolidator::GetConfig() const { return this->config; }
+
+void HdMaxConsolidator::SetConfig(const Config& config) { this->config = config; }
+
+HdMaxConsolidator::OutputPtr HdMaxConsolidator::GetConsolidation(const pxr::UsdTimeCode& time) const
+{
+    const auto it = consolidationCache.find(time);
+    if (it == consolidationCache.end()) {
+        return nullptr;
+    }
+    return it->second;
+}
+
+void HdMaxConsolidator::GenerateInputs(
+    const HdMaxRenderData* primRenderData,
+    int                    subsetIndex,
+    size_t                 numTriWithSameMaterial,
+    std::vector<Input>&    inputs) const
+{
+    // For instanced data being consolidated, we might need to split them into multiple
+    // consolidated mesh.
+    const std::vector<Matrix3>* transforms = nullptr;
+
+    std::shared_ptr<std::vector<Matrix3>> singleTransformArray = nullptr;
+    if (!primRenderData->shadedSubsets[0].IsInstanced()) {
+        singleTransformArray = std::make_shared<std::vector<Matrix3>>();
+        singleTransformArray->push_back(MaxUsd::ToMaxMatrix3(primRenderData->transform));
+        transforms = singleTransformArray.get();
+    }
+    // Instanced geometry.
+    else {
+        transforms = &primRenderData->instancer->GetTransforms();
+    }
+
+    // By looking at the total number of triangles sharing the same material as the subset, and not
+    // the subset's own size, we can "align" the subsets with the same materials in the same
+    // consolidated meshes, and thus reduce memory usage, as vertex buffers can then be shared.
+    const auto maxInstancesPerInput = config.maxCellSize / numTriWithSameMaterial;
+    DbgAssert(maxInstancesPerInput);
+    if (!maxInstancesPerInput) {
+        return;
+    }
+
+    const auto numInputs
+        = int(std::ceil(double(transforms->size()) / double(maxInstancesPerInput)));
+
+    auto nextInstanceStartIdx = 0;
+    inputs.reserve(numInputs);
+    for (int j = 0; j < numInputs; ++j) {
+        const auto multiPartIndex = numInputs > 1 ? j : Input::InvalidMultipartIndex;
+
+        Input input;
+        input.primPath = primRenderData->rPrimPath;
+        input.subsetIndex = subsetIndex;
+        input.indices = primRenderData->shadedSubsets[subsetIndex].indices;
+        input.wireIndices = primRenderData->shadedSubsets[subsetIndex].wireIndices;
+        input.points = primRenderData->points;
+        input.normals = primRenderData->normals;
+
+        // For now we do not support high-quality mode in the viewport.
+        // Only support one UV channel. Make sure to use the uv channel that
+        // is used for the diffuse color map. Default to the first uv channel.
+        auto uvIndex = 0;
+        auto it = primRenderData->materialDiffuseColorUvPrimvars.find(
+            primRenderData->shadedSubsets[subsetIndex].materiaId);
+        if (it != primRenderData->materialDiffuseColorUvPrimvars.end()) {
+            for (int i = 0; i < primRenderData->uvs.size(); ++i) {
+                if (it->second == primRenderData->uvs[i].varname) {
+                    uvIndex = i;
+                    break;
+                }
+            }
+        }
+        input.uvs = primRenderData->uvs.empty() ? pxr::VtVec3fArray {}
+                                                : primRenderData->uvs[uvIndex].data;
+
+        input.dirtyBits = primRenderData->shadedSubsets[subsetIndex].dirtyBits;
+        input.multipartIndex = multiPartIndex;
+        // Figure out instances that will be in this input...
+        auto start = transforms->begin() + nextInstanceStartIdx;
+        auto end = start + (maxInstancesPerInput) > transforms->end()
+            ? transforms->end()
+            : start + (maxInstancesPerInput);
+        input.transforms.insert(input.transforms.begin(), start, end);
+
+        const bool instanced = primRenderData->shadedSubsets[subsetIndex].IsInstanced();
+        if (instanced) {
+            // Get the selected instances from the instancer to configure our input.
+            const auto& instanceSelection = primRenderData->instancer->GetSelection();
+            const auto  selectionStart = instanceSelection.begin() + nextInstanceStartIdx;
+            const auto  selectionEnd
+                = selectionStart + (maxInstancesPerInput) > instanceSelection.end()
+                ? instanceSelection.end()
+                : selectionStart + (maxInstancesPerInput);
+            input.selection.insert(input.selection.begin(), selectionStart, selectionEnd);
+        } else {
+            DbgAssert(input.transforms.size() == 1);
+            input.selection.push_back(primRenderData->selected);
+        }
+
+        DbgAssert(!input.transforms.empty());
+
+        nextInstanceStartIdx += static_cast<int>(maxInstancesPerInput);
+        inputs.push_back(input);
+    }
+}
+
+void HdMaxConsolidator::BuildConsolidationCells(
+    const std::vector<HdMaxRenderData*>&                               renderData,
+    std::map<MaxSDK::Graphics::BaseMaterialHandle, std::vector<Cell>>& cells,
+    const pxr::UsdTimeCode&                                            time)
+{
+    const auto existingConsolidation = GetConsolidation(time);
+
+    // Collect geometry that can be consolidated.
+    for (const auto& primRenderData : renderData) {
+        // No geometry -> nothing to consolidate. Only points and normals are absolutely required.
+        if (primRenderData->points.empty() || primRenderData->normals.empty()) {
+            continue;
+        }
+
+        bool hasSplitInstances = false;
+
+        // Figure out the "actual" material subsets from the final material in the viewport.
+        // Indeed, if all geomSubsets are bound the same material, we can treat it as a single mesh.
+        // We want to, as much as possible, avoid duplication of vertex buffers and so we try to fit
+        // subsets with the same materials, on the same consolidated meshes. Therefor we consider
+        // the total number of triangles sharing the same material, if multiple subsets use the same
+        // materials.
+        std::vector<SubsetInfo>                                              subsetInfos;
+        std::vector<std::pair<MaxSDK::Graphics::BaseMaterialHandle, size_t>> materialTris;
+        ComputeSubsetInfo(*primRenderData, subsetInfos, materialTris);
+
+        for (int i = 0; i < primRenderData->shadedSubsets.size(); i++) {
+            const auto it = std::find_if(
+                materialTris.begin(), materialTris.end(), [&subsetInfos, i](const auto& pair) {
+                    return pair.first == subsetInfos[i].material;
+                });
+
+            const auto numTriWithSameMaterial = it->second;
+
+            if (numTriWithSameMaterial > config.maxTriangles
+                || // Too many triangles to consider consolidation.
+                numTriWithSameMaterial > config.maxCellSize
+                || // More triangles than what can fit in a cell.
+                primRenderData->instancer->GetNumInstances() * materialTris.size()
+                    > config.maxInstanceCount) // Too many instances (consider how many subsets we
+                                               // have.)
+            {
+                continue;
+            }
+
+            // Was it already consolidated?
+            if (primRenderData->shadedSubsets[i].inConsolidation) {
+                continue;
+            }
+
+            if (!primRenderData->shadedSubsets[i].geometry) {
+                continue;
+            }
+
+            // We can consolidate geometry sharing the same material.
+            MaxSDK::Graphics::BaseMaterialHandle consolidationKey = subsetInfos[i].material;
+
+            // Generate the consolidation input(s) from the prim's render data. For instanced
+            // geometry we might need multiple inputs, as we might have to distribute the instances
+            // over multiple cells.
+            std::vector<Input> inputs;
+            GenerateInputs(primRenderData, i, numTriWithSameMaterial, inputs);
+
+            hasSplitInstances |= inputs.size() > 1;
+
+            for (const auto& input : inputs) {
+                auto& materialCells = cells[consolidationKey];
+                // No cells yet for this material, create one.
+                if (materialCells.empty()) {
+                    materialCells.push_back(
+                        Cell { input.indices.size() * input.transforms.size(), { input } });
+                }
+                // Already have a cell(s), add to the first cell that can receive it without going
+                // over the max size.
+                else {
+                    bool foundSuitableCell = false;
+                    for (auto& cell : materialCells) {
+                        const auto totalInputTris = input.indices.size() * input.transforms.size();
+                        if (cell.numTris + totalInputTris > config.maxCellSize) {
+                            continue;
+                        }
+
+                        // When some prim has instances with several material subsets split over
+                        // multiple consolidated meshes, it is much simpler to manage if the subsets
+                        // of the same instances end up in the same merged meshes. Having different
+                        // subsets of different instances makes our life much more complicated when
+                        // later figuring out where things end up in the consolidation. For sanity,
+                        // make sure the subsets only share merged meshes with the same instances.
+                        if (hasSplitInstances) {
+
+                            // Consolidating instances can be very memory intensive. Don't use a
+                            // cell if it's already partially used by another prim. This way, we
+                            // might reduce duplication of vertex buffers, as more instance subsets
+                            // will be able to fit on the same cell.
+
+                            // Consider the following example (everything here has the same
+                            // material) :
+
+                            // Some previously processed geometry :
+                            // a -> simple mesh
+                            // b -> simple mesh
+
+                            // A set of  instances with subsets :
+                            // subset1_1 -> mesh subset1 of instance 1
+                            // subset1_2 -> mesh subset1 of instance 2
+                            // subset2_1 -> mesh subset2 of instance 1
+                            // subset2_2 -> mesh subset2 of instance 2
+
+                            // Say we currently have a single cell with remaining space available,
+                            // but not enough to fit all subsets of the instances: cell 1 : [a,b, ]
+                            // We could append to the cell part of the instances, and create a new
+                            // cell, which could give us : cell 1 : [a, b, subset1_1,
+                            // subset1_1,subset1_2] cell 2 : [,subset2_2, subset2_2] However, this
+                            // is not great, as we need a copy of the vertex buffers for the
+                            // instance in both cells. Instead, we want : cell 1 : [a, b,    ] cell
+                            // 2 : [subset1_1, subset1_1,subset1_2 ,subset2_2, subset2_2] This way,
+                            // we only need a single copy of the vertices, for cell 2.
+
+                            const auto otherPrim = std::find_if(
+                                cell.inputs.begin(), cell.inputs.end(), [&input](const Input& i) {
+                                    return i.primPath != input.primPath;
+                                });
+                            if (otherPrim != cell.inputs.end()) {
+                                continue;
+                            }
+
+                            // Do we already have a subset for this prim in the cell?
+                            const auto it = std::find_if(
+                                cell.inputs.begin(), cell.inputs.end(), [&input](const Input& i) {
+                                    return i.primPath == input.primPath;
+                                });
+
+                            if (it != cell.inputs.end()) {
+                                // If it's not the same exact instances, don't use this cell.
+                                const auto sameInstances = std::equal(
+                                    it->transforms.begin(),
+                                    it->transforms.end(),
+                                    input.transforms.begin(),
+                                    input.transforms.end());
+                                if (!sameInstances) {
+                                    continue;
+                                }
+                            }
+                        }
+
+                        cell.inputs.push_back(input);
+                        cell.numTris += totalInputTris;
+                        foundSuitableCell = true;
+                        break;
+                    }
+                    if (!foundSuitableCell) {
+                        // Should not happen, would/should have been split into multiple inputs.
+                        const auto numTris = input.indices.size();
+                        DbgAssert(numTris * input.transforms.size() <= config.maxCellSize);
+                        materialCells.push_back(
+                            Cell { numTris * input.transforms.size(), { input } });
+                    }
+                }
+            }
+        }
+    }
+}
+
+HdMaxConsolidator::OutputPtr HdMaxConsolidator::BuildConsolidation(
+    const std::vector<HdMaxRenderData*>&        renderData,
+    const pxr::UsdTimeCode&                     time,
+    const MaxSDK::Graphics::BaseMaterialHandle& wireMaterial)
+{
+    // If a consolidation already exists, we will append to it.
+    auto existingConsolidation = GetConsolidation(time);
+    std::map<MaxSDK::Graphics::BaseMaterialHandle, std::vector<Cell>> cells;
+
+    // Build the consolidation cells, i.e. we are figuring out what prims will be combined together.
+    BuildConsolidationCells(renderData, cells, time);
+
+    // Consolidate!
+
+    // For each material, we can have one or more cells.
+    for (const auto& materialCells : cells) {
+        for (const auto& cell : materialCells.second) {
+            const auto count = std::accumulate(
+                cell.inputs.begin(), cell.inputs.end(), 0, [](int total, const Input& input) {
+                    return total + static_cast<int>(input.transforms.size());
+                });
+
+            // Don't consolidate the cell if in only has a single input - unless that input is part
+            // of a prim render data that must be split over multiple cell, then we still need to
+            // consolidate so the prim is complete overall. (This can be the case for instances
+            // spread over multiple cells...the last cell might only have one instance)
+            if (count == 0
+                || (count == 1 && cell.inputs[0].multipartIndex == Input::InvalidMultipartIndex)) {
+                continue;
+            }
+
+            // If no consolidation output object existed, create it now, and cache it.
+            if (!existingConsolidation) {
+                existingConsolidation = std::make_shared<Output>();
+                consolidationCache[time] = existingConsolidation;
+            }
+
+            // Create the object that will own the consolidated render data for this cell.
+            ConsolidatedGeomPtr result = std::make_shared<ConsolidatedGeom>();
+            result->material = materialCells.first;
+
+            // Consolidate the vertex buffers.
+            MaxSDK::Graphics::VertexBufferHandleArray vertexBuffers;
+
+            BuildVertexBuffers(cell, vertexBuffers, *result);
+
+            // For some reason, this can dramatically reduce the overall memory consumption
+            // when the GPU memory overflows to the ram. In principle and according to OGS
+            // engineers, it is non-standard to call RealizeToHWMemory() in DCC code - but it should
+            // be safe here.
+            for (auto& buffer : vertexBuffers) {
+                buffer.RealizeToHWMemory(true);
+            }
+
+            // Build a shaded render item for the consolidated cell.
+            {
+                const auto simpleRenderGeometry = new MaxSDK::Graphics::SimpleRenderGeometry {};
+                simpleRenderGeometry->SetPrimitiveType(MaxSDK::Graphics::PrimitiveTriangleList);
+                // Use the same stream requirements as non-consolidated USD render data.
+                simpleRenderGeometry->SetSteamRequirement(
+                    HdMaxRenderData::GetRequiredStreams(false /*wire*/));
+
+                // Build the consolidated index buffer.
+                MaxSDK::Graphics::IndexBufferHandle indexBuffer;
+                BuildIndexBuffer(cell, indexBuffer, false /*wireframe*/);
+                simpleRenderGeometry->SetIndexBuffer(indexBuffer);
+                simpleRenderGeometry->SetPrimitiveCount(indexBuffer.GetNumberOfIndices() / 3);
+
+                // Assign the vertex buffers.
+                for (int i = 0; i < vertexBuffers.length(); ++i) {
+                    simpleRenderGeometry->AddVertexBuffer(vertexBuffers[i]);
+                }
+
+                result->renderItem.Initialize();
+                result->renderItem.SetRenderGeometry(simpleRenderGeometry);
+                result->renderItem.SetVisibilityGroup(MaxSDK::Graphics::RenderItemVisible_Shaded);
+
+                // Setup the render item used to display selection highlighting. It uses the same
+                // render geometry / buffers.
+                const auto usdRenderItem = new SelectionRenderItem(
+                    static_cast<MaxSDK::Graphics::IRenderGeometryPtr>(simpleRenderGeometry), false);
+                result->renderItemSelection.Initialize();
+                result->renderItemSelection.SetCustomImplementation(usdRenderItem);
+                result->renderItemSelection.SetVisibilityGroup(
+                    MaxSDK::Graphics::RenderItemVisible_Shaded);
+
+                // Material setup.
+                if (config.visualize) // Useful for debugging consolidation.
+                {
+                    auto mat = MaxSDK::Graphics::StandardMaterialHandle {};
+                    mat.Initialize();
+                    float r = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
+                    float g = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
+                    float b = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
+                    mat.SetDiffuse({ r, g, b });
+                    mat.SetAmbient({ r, g, b });
+                    result->renderItem.SetCustomMaterial(mat);
+                    result->renderItemSelection.SetCustomMaterial(mat);
+                } else {
+                    result->renderItem.SetCustomMaterial(materialCells.first);
+                    result->renderItemSelection.SetCustomMaterial(materialCells.first);
+                }
+            }
+
+            // Build wireframe render item for the consolidated cell.
+            {
+                const auto simpleRenderGeometry = new MaxSDK::Graphics::SimpleRenderGeometry {};
+                simpleRenderGeometry->SetPrimitiveType(MaxSDK::Graphics::PrimitiveLineList);
+                // Use the same stream requirements as non-consolidated USD render data.
+                simpleRenderGeometry->SetSteamRequirement(
+                    HdMaxRenderData::GetRequiredStreams(true));
+
+                // Build the wire index buffer.
+                MaxSDK::Graphics::IndexBufferHandle indexBuffer;
+                BuildIndexBuffer(cell, indexBuffer, true /*wireframe*/);
+
+                simpleRenderGeometry->SetIndexBuffer(indexBuffer);
+                simpleRenderGeometry->SetPrimitiveCount(indexBuffer.GetNumberOfIndices() / 2);
+
+                // Assign the vertex buffers, they are shared with the shaded geometry.
+                // UVs are not needed for wireframe geometry.
+                simpleRenderGeometry->AddVertexBuffer(vertexBuffers[HdMaxRenderData::PointsBuffer]);
+                simpleRenderGeometry->AddVertexBuffer(
+                    vertexBuffers[HdMaxRenderData::NormalsBuffer]);
+                simpleRenderGeometry->AddVertexBuffer(
+                    vertexBuffers[HdMaxRenderData::SelectionBuffer]);
+
+                result->wireframeRenderItem.Initialize();
+                result->wireframeRenderItem.SetVisibilityGroup(
+                    MaxSDK::Graphics::RenderItemVisible_Wireframe);
+                result->wireframeRenderItem.SetRenderGeometry(simpleRenderGeometry);
+
+                const auto usdRenderItem = new SelectionRenderItem(
+                    static_cast<MaxSDK::Graphics::IRenderGeometryPtr>(simpleRenderGeometry), true);
+                result->wireframeRenderItemSelection.Initialize();
+                result->wireframeRenderItemSelection.SetCustomImplementation(usdRenderItem);
+                result->wireframeRenderItemSelection.SetVisibilityGroup(
+                    MaxSDK::Graphics::RenderItemVisible_Wireframe);
+                result->wireframeRenderItemSelection.SetCustomMaterial(wireMaterial);
+            }
+
+            existingConsolidation->geoms->push_back(result);
+            for (const auto& input : cell.inputs) {
+                existingConsolidation->primToGeom[{ input.primPath, input.subsetIndex }].push_back(
+                    result);
+                // Flag the render data as part of a consolidated mesh.
+                const auto rdIdx = renderDelegate->GetRenderDataIndex(input.primPath);
+                auto&      renderData = renderDelegate->GetRenderData(rdIdx);
+                renderData.shadedSubsets[input.subsetIndex].inConsolidation = true;
+                // Track what exactly goes in the consolidation. Important : here we store the index
+                // of the render data in the delegate to speed up access later on. This index can
+                // change so when we use it again, we will use
+                // renderDelegate->SafeGetRenderData(...), which may fallback to using the prim
+                // path.
+                existingConsolidation->consolidatedRenderData.push_back(
+                    { rdIdx, input.primPath, input.subsetIndex });
+            }
+        }
+    }
+    if (existingConsolidation) {
+        const auto totalSubsets = std::accumulate(
+            renderData.begin(), renderData.end(), 0, [](int total, const auto& data) {
+                return total + static_cast<int>(data->shadedSubsets.size());
+            });
+        existingConsolidation->sourceRenderData.clear();
+        existingConsolidation->sourceRenderData.reserve(totalSubsets);
+        for (const auto& rd : renderData) {
+            for (int i = 0; i < rd->shadedSubsets.size(); ++i) {
+                existingConsolidation->sourceRenderData.push_back(
+                    { renderDelegate->GetRenderDataIndex(rd->rPrimPath), rd->rPrimPath, i });
+            }
+        }
+    }
+    return existingConsolidation;
+}
+
+void HdMaxConsolidator::BuildIndexBuffer(
+    const Cell&                          cell,
+    MaxSDK::Graphics::IndexBufferHandle& output,
+    bool                                 wireframe) const
+{
+    size_t                        totalNumIndices = 0;
+    std::vector<std::vector<int>> baseIndices { cell.inputs.size() };
+
+    auto getIndicesData = [&wireframe](const Input& input) {
+        return !wireframe ? MaxUsd::Vt::GetNoCopy<UINT, pxr::GfVec3i>(input.indices)
+                          : MaxUsd::Vt::GetNoCopy<UINT, int>(input.wireIndices);
+    };
+
+    auto getIndicesSize = [&wireframe](const Input& input) {
+        return !wireframe ? input.indices.size() * 3 : input.wireIndices.size();
+    };
+
+    for (const auto& input : cell.inputs) {
+        auto numInstances = input.transforms.size();
+
+        totalNumIndices += getIndicesSize(input) * numInstances;
+    }
+
+    output.Initialize(MaxSDK::Graphics::IndexTypeInt, totalNumIndices);
+
+    std::vector<std::vector<std::pair<int*, int>>> targets(cell.inputs.size());
+
+    size_t baseIndex = 0;
+    int*   pDestIdx = (int*)output.Lock(0, 0, MaxSDK::Graphics::WriteDiscardAcess);
+
+    for (int inputIndex = 0; inputIndex < cell.inputs.size(); ++inputIndex) {
+        const auto& input = cell.inputs[inputIndex];
+
+        bool bumpBaseIndex = false;
+        if (inputIndex + 1 < cell.inputs.size()) {
+            bumpBaseIndex = input.primPath != cell.inputs[inputIndex + 1].primPath;
+        }
+        for (int i = 0; i < input.transforms.size(); ++i) {
+            targets[inputIndex].emplace_back(
+                pDestIdx, static_cast<int>(baseIndex) + i * static_cast<int>(input.points.size()));
+            pDestIdx += getIndicesSize(input);
+        }
+        if (bumpBaseIndex) {
+            baseIndex += input.points.size() * input.transforms.size();
+        }
+    }
+
+    tbb::parallel_for(
+        tbb::blocked_range<size_t>(0, cell.inputs.size()), [&](tbb::blocked_range<size_t> r) {
+            for (size_t inputIndex = r.begin(); inputIndex < r.end(); ++inputIndex) {
+                const auto& input = cell.inputs[inputIndex];
+                for (int i = 0; i < input.transforms.size(); ++i) {
+                    const auto srcArray = getIndicesData(input);
+                    AppendIndexBuffer(
+                        targets[inputIndex][i].first,
+                        srcArray,
+                        targets[inputIndex][i].second,
+                        getIndicesSize(input));
+                    pDestIdx += getIndicesSize(input);
+                }
+            }
+        });
+    output.Unlock();
+}
+
+void HdMaxConsolidator::BuildVertexBuffers(
+    const Cell&                                cell,
+    MaxSDK::Graphics::VertexBufferHandleArray& outputs,
+    ConsolidatedGeom&                          result)
+{
+    size_t numData = 0;
+
+    for (const auto& input : cell.inputs) {
+        auto numInstances = input.transforms.size();
+        numData += numInstances;
+    }
+
+    // Figure out where in the consolidated mesh each prim's geometry will go.
+    size_t baseVertexOffset = 0;
+    for (int i = 0; i < cell.inputs.size(); ++i) {
+        // Only increment the base offset when we switch prim, indeed, we can have
+        // multiple inputs for the same prim if there are UdGeomSubsets, but in this
+        // case they still all share the same vertex buffers.
+        bool bumpBaseIndex = false;
+        if (i + 1 < cell.inputs.size()) {
+            bumpBaseIndex = cell.inputs[i].primPath != cell.inputs[i + 1].primPath;
+        }
+
+        // The prim can have multiple inputs because of usd geom subsets, but the vertex buffers
+        // are the same, and so only need to create the mapping once.
+        if (result.dataMapping.find(cell.inputs[i].primPath) == result.dataMapping.end()) {
+            Mapping mapping;
+            mapping.primPath = cell.inputs[i].primPath;
+            mapping.vertexCount = cell.inputs[i].points.size();
+            mapping.offsets.reserve(cell.inputs[i].transforms.size());
+            mapping.multipartIndex = cell.inputs[i].multipartIndex;
+
+            // Create the offset for each one of the instances.
+            for (int k = 0; k < cell.inputs[i].transforms.size(); ++k) {
+                mapping.offsets.push_back(
+                    static_cast<int>(baseVertexOffset)
+                    + k * static_cast<int>(cell.inputs[i].points.size()));
+            }
+            result.dataMapping.insert({ mapping.primPath, mapping });
+        }
+
+        if (bumpBaseIndex || i == cell.inputs.size() - 1) {
+            baseVertexOffset += cell.inputs[i].points.size() * cell.inputs[i].transforms.size();
+        }
+    }
+
+    // baseVertexOffset is now equal to the total size we need for vertex buffers.
+    MaxSDK::Graphics::VertexBufferHandle positionsBuffer;
+    positionsBuffer.Initialize(
+        sizeof(Point3), baseVertexOffset, nullptr, MaxSDK::Graphics::BufferUsageDynamic);
+    MaxSDK::Graphics::VertexBufferHandle normalsBuffer;
+    normalsBuffer.Initialize(
+        sizeof(Point3), baseVertexOffset, nullptr, MaxSDK::Graphics::BufferUsageDynamic);
+    MaxSDK::Graphics::VertexBufferHandle selectionBuffer;
+    selectionBuffer.Initialize(
+        sizeof(Point3), baseVertexOffset, nullptr, MaxSDK::Graphics::BufferUsageDynamic);
+    MaxSDK::Graphics::VertexBufferHandle uvBuffer;
+    uvBuffer.Initialize(
+        sizeof(Point3), baseVertexOffset, nullptr, MaxSDK::Graphics::BufferUsageDynamic);
+
+    outputs.removeAll();
+    outputs.append(positionsBuffer);
+    outputs.append(normalsBuffer);
+    outputs.append(selectionBuffer);
+    outputs.append(uvBuffer);
+
+    bool hasSelectionHighlight = false;
+    UpdateVertexBuffers(outputs, cell.inputs, result.dataMapping, true, hasSelectionHighlight);
+    result.hasActiveSelection = hasSelectionHighlight;
+}
+
+void HdMaxConsolidator::AppendIndexBuffer(int* pDestIdx, UINT* pSrcIdx, int baseIndex, size_t count)
+{
+    for (size_t i = 0; i < count; ++i) {
+        pDestIdx[i] = baseIndex + pSrcIdx[i];
+    }
+}
+
+void HdMaxConsolidator::ComputeSubsetInfo(
+    const HdMaxRenderData&                                                renderData,
+    std::vector<SubsetInfo>&                                              subsetInfos,
+    std::vector<std::pair<MaxSDK::Graphics::BaseMaterialHandle, size_t>>& materialTris) const
+{
+    subsetInfos.resize(renderData.shadedSubsets.size());
+    for (int i = 0; i < renderData.shadedSubsets.size(); ++i) {
+        subsetInfos[i].material = renderData.ResolveViewportMaterial(
+            renderData.shadedSubsets[i], config.displaySettings, false);
+        subsetInfos[i].numTris = renderData.shadedSubsets[i].indices.size();
+    }
+    for (const auto& info : subsetInfos) {
+        auto it = std::find_if(materialTris.begin(), materialTris.end(), [&info](const auto& pair) {
+            return pair.first == info.material;
+        });
+        if (it != materialTris.end()) {
+            it->second += info.numTris;
+            continue;
+        }
+        materialTris.emplace_back(info.material, info.numTris);
+    }
+}
+
+void HdMaxConsolidator::UpdateVertexBuffers(
+    MaxSDK::Graphics::VertexBufferHandleArray&                       toUpdate,
+    const std::vector<Input>&                                        inputs,
+    const pxr::TfHashMap<pxr::SdfPath, Mapping, pxr::SdfPath::Hash>& mappings,
+    bool                                                             fullUpdate,
+    bool&                                                            hasSelectionHighlight)
+{
+
+    auto getRawBuffer = [](const Input& input, size_t streamIndex) {
+        switch (streamIndex) {
+        case HdMaxRenderData::PointsBuffer:
+            return MaxUsd::Vt::GetNoCopy<Point3, pxr::GfVec3f>(input.points);
+        case HdMaxRenderData::NormalsBuffer:
+            return MaxUsd::Vt::GetNoCopy<Point3, pxr::GfVec3f>(input.normals);
+        case HdMaxRenderData::UvsBuffer:
+            return MaxUsd::Vt::GetNoCopy<Point3, pxr::GfVec3f>(input.uvs);
+        }
+        return (Point3*)nullptr;
+    };
+
+    auto getBufferSize = [](const Input& input, size_t streamIndex) {
+        switch (streamIndex) {
+        case HdMaxRenderData::PointsBuffer: return int(input.points.size());
+        case HdMaxRenderData::NormalsBuffer: return int(input.normals.size());
+        case HdMaxRenderData::UvsBuffer: return int(input.uvs.size());
+        }
+        return 0;
+    };
+
+    auto getIsDirty = [](const Input& input, size_t streamIndex) {
+        switch (streamIndex) {
+        case HdMaxRenderData::PointsBuffer:
+            return (input.dirtyBits & HdMaxChangeTracker::DirtyPoints) != 0
+                || (input.dirtyBits & HdMaxChangeTracker::DirtyTransforms) != 0;
+        case HdMaxRenderData::NormalsBuffer:
+            return (input.dirtyBits & HdMaxChangeTracker::DirtyNormals) != 0
+                || (input.dirtyBits & HdMaxChangeTracker::DirtyTransforms) != 0;
+        case HdMaxRenderData::SelectionBuffer:
+            return (input.dirtyBits & HdMaxChangeTracker::DirtySelectionHighlight) != 0;
+        case HdMaxRenderData::UvsBuffer:
+            return (input.dirtyBits & HdMaxChangeTracker::DirtyUvs) != 0;
+        }
+        return false;
+    };
+
+    // Unless we know for sure we want to update everything, try to figure out the range of vertices
+    // that must be updated, so we can tell nitrous to only lock on the required vertices. Also
+    // figure out what buffers actually need to be updated.
+    size_t            firstVertexIndex = 0;
+    size_t            size = 0;
+    std::vector<bool> dirtyBuffers(toUpdate.length());
+    if (!fullUpdate) {
+        size_t minIndex = toUpdate[0].GetNumberOfVertices() - 1;
+        size_t maxIndex = 0;
+        for (const auto& input : inputs) {
+            const auto it = mappings.find(input.primPath);
+            if (it == mappings.end()) {
+                continue;
+            }
+            const auto mapping = it->second;
+            minIndex = std::min(static_cast<size_t>(mapping.offsets.front()), minIndex);
+            maxIndex = std::max(
+                static_cast<size_t>(mapping.offsets.back()) + mapping.vertexCount - 1, minIndex);
+        }
+
+        firstVertexIndex = minIndex;
+        size = maxIndex - minIndex + 1;
+
+        for (const auto& input : inputs) {
+            for (int i = 0; i < toUpdate.length(); ++i) {
+                if (!dirtyBuffers[i]) {
+                    if (getIsDirty(input, i)) {
+                        dirtyBuffers[i] = true;
+                    }
+                }
+            }
+        }
+    }
+
+    std::atomic<bool> foundSelectionHighlight = false;
+
+    // Update the buffers!
+    for (size_t bufferIndex = 0; bufferIndex < toUpdate.length(); bufferIndex++) {
+        if (!fullUpdate && !dirtyBuffers[bufferIndex]) {
+            continue;
+        }
+
+        auto& vertexBuffer = toUpdate[bufferIndex];
+        auto  destBuffer = reinterpret_cast<Point3*>(
+            vertexBuffer.Lock(firstVertexIndex, size, MaxSDK::Graphics::WriteDiscardAcess));
+        auto endOfBuffer = destBuffer + vertexBuffer.GetNumberOfVertices() - 1;
+
+        // Process all inputs in parallel - TBB is pretty clever in deciding the degree of
+        // parallelism.
+        tbb::parallel_for(
+            tbb::blocked_range<size_t>(0, inputs.size()), [&](tbb::blocked_range<size_t> r) {
+                for (size_t i = r.begin(); i < r.end(); ++i) {
+                    // Is this input part of this geometry?
+                    const auto it = mappings.find(inputs[i].primPath);
+                    if (it == mappings.end()) {
+                        continue;
+                    }
+
+                    // If the input is for an instanced prim that spreads over multiple consolidated
+                    // geometries, make sure we are updating right one.
+                    if (it->second.multipartIndex != inputs[i].multipartIndex) {
+                        continue;
+                    }
+
+                    // Unless we are force updating everything, only update the vertices of "dirty"
+                    // inputs.
+                    if (!getIsDirty(inputs[i], bufferIndex) && !fullUpdate) {
+                        continue;
+                    }
+
+                    Point3* srcBuffer = nullptr;
+                    size_t  srcBufferSize = 0;
+
+                    // Fetch the source buffer data, except for the selection buffer, we just need
+                    // to look at the selection flags of the input to know if we should fill in the
+                    // selection buffer with ones or zeros in the output consolidated mesh.
+                    if (bufferIndex != HdMaxRenderData::SelectionBuffer) {
+                        // Some buffers may not exist (uvs may not be loaded).
+                        srcBuffer = getRawBuffer(inputs[i], bufferIndex);
+                        if (!srcBuffer) {
+                            continue;
+                        }
+                        // Empty buffer, nothing for us to do.
+                        srcBufferSize = getBufferSize(inputs[i], bufferIndex);
+                        if (!srcBufferSize) {
+                            continue;
+                        }
+                    }
+
+                    // Process all instances this input owns.
+                    for (int k = 0; k < inputs[i].transforms.size(); ++k) {
+                        const int vertOffset = it->second.offsets[k];
+
+                        // Pointer to were this inputs starts in the consolidated vertex buffer.
+                        Point3* inputDestBuffer = destBuffer + vertOffset - firstVertexIndex;
+
+                        const size_t numVerts = inputs[i].points.size();
+
+                        // Special case for selection - there is no source vertex buffer, in
+                        // non-consolidated geometry, we do not need one in the prim render data, we
+                        // just need a flag.
+                        if (bufferIndex == HdMaxRenderData::SelectionBuffer) {
+                            const bool highlight = inputs[i].selection[k];
+                            const auto selectionValue
+                                = highlight ? Point3(1, 1, 1) : Point3(0, 0, 0);
+                            std::fill(inputDestBuffer, inputDestBuffer + numVerts, selectionValue);
+                            if (highlight) {
+                                foundSelectionHighlight = true;
+                            }
+                            continue;
+                        }
+
+                        // All other vertex buffers should be the same size, but that is not
+                        // enforced. In this case, we would still only write up to numVerts, which
+                        // is what we allocated.
+                        DbgAssert(numVerts == srcBufferSize);
+
+                        Matrix3 transform = inputs[i].transforms[k];
+
+                        tbb::parallel_for(
+                            tbb::blocked_range<size_t>(0, numVerts),
+                            [&](tbb::blocked_range<size_t> vRange) {
+                                for (size_t v = vRange.begin(); v < vRange.end(); ++v) {
+                                    if (v >= srcBufferSize) {
+                                        inputDestBuffer[v] = {};
+                                        continue;
+                                    }
+
+                                    const bool outOfRange = inputDestBuffer + v > endOfBuffer;
+                                    DbgAssert(!outOfRange);
+                                    if (outOfRange) {
+                                        continue;
+                                    }
+
+                                    // Points, need to bake the transform.
+                                    if (bufferIndex == HdMaxRenderData::PointsBuffer) {
+                                        inputDestBuffer[v] = srcBuffer[v] * transform;
+                                    }
+                                    // Normal, transform the vector
+                                    else if (bufferIndex == HdMaxRenderData::NormalsBuffer) {
+                                        inputDestBuffer[v]
+                                            = VectorTransform(transform, srcBuffer[v]);
+                                        const float lenSq = LengthSquared(inputDestBuffer[v]);
+                                        if (lenSq && (lenSq != 1.0f)) {
+                                            inputDestBuffer[v] /= std::sqrt(lenSq);
+                                        }
+                                    }
+                                    // UVs stay as-is.
+                                    else {
+                                        inputDestBuffer[v] = srcBuffer[v];
+                                    }
+                                }
+                            });
+                    }
+                }
+            });
+        vertexBuffer.Unlock();
+    }
+
+    // If selection is dirty, update the hasSelectionHighlight flag, this allows the caller to pass
+    // in the last value it had for it, and use the value as is after the call.
+    if (fullUpdate || dirtyBuffers[HdMaxRenderData::SelectionBuffer]) {
+        hasSelectionHighlight = foundSelectionHighlight;
+    }
+}
+
+void HdMaxConsolidator::Reset()
+{
+    // Clearing any and all existing consolidations. Make sure to flag everything that was
+    // consolidated as dirty again, as we are not handling it anymore.
+    for (const auto& consolidation : consolidationCache) {
+        for (const auto& renderDataInfo : consolidation.second->sourceRenderData) {
+            auto& renderData
+                = renderDelegate->SafeGetRenderData(renderDataInfo.index, renderDataInfo.primPath);
+            if (renderData.rPrimPath.IsEmpty()) {
+                // Render data that was previously consolidated no longer exists (deactivated
+                // maybe).
+                continue;
+            }
+            // We may get into a situation, for example if a prim changes render purpose during
+            // variant selection, where a previously consolidated prim, still exists, but was
+            // re-created from scratch, and is not fully initialized, as it doesn't need to be
+            // displayed yet. Make sure the subset we are looking to dirty still exists.
+            if (renderDataInfo.subsetIdx >= renderData.shadedSubsets.size()) {
+                continue;
+            }
+            HdMaxChangeTracker::SetDirty(
+                renderData.shadedSubsets[renderDataInfo.subsetIdx].dirtyBits,
+                HdMaxChangeTracker::AllDirty);
+            renderData.shadedSubsets[renderDataInfo.subsetIdx].inConsolidation = false;
+        }
+    }
+    consolidationCache.clear();
+}
+
+void HdMaxConsolidator::GetConsolidatedPrimSubsets(
+    const pxr::UsdTimeCode& time,
+    PrimSubsetSet&          consolidatedPrimSubsets) const
+{
+    const auto it = consolidationCache.find(time);
+    if (it == consolidationCache.end()) {
+        return;
+    }
+    auto& consolidation = it->second;
+    consolidatedPrimSubsets.reserve(consolidation->primToGeom.size());
+    for (const auto& entry : consolidation->primToGeom) {
+        consolidatedPrimSubsets.insert(entry.first);
+    }
+}
+
+void HdMaxConsolidator::UpdateConsolidation(
+    const std::vector<HdMaxRenderData*>& renderData,
+    const pxr::UsdTimeCode&              previousTime,
+    const pxr::UsdTimeCode&              newTime)
+{
+    const auto it = consolidationCache.find(previousTime);
+    if (it == consolidationCache.end()) {
+        return;
+    }
+
+    // Is there a consolidation we should attempt to update?
+    const auto currentConsolidation = it->second;
+    if (!currentConsolidation || currentConsolidation->geoms->empty()) {
+        return;
+    }
+
+    // Figure out if any prim's data that is part of the current consolidation is dirty and
+    // if so, if it can be updated.
+    struct PrimConsolidationData
+    {
+        HdMaxRenderData* primRenderData;
+        std::vector<int> consolidatedSubsets;
+    };
+    std::vector<PrimConsolidationData> dirtyConsolidatedData;
+    bool                               consolidationIsDirty = false;
+    bool                               breakConsolidation = false;
+
+    // Keep track of how many of the prims we need to render are in the existing consolidation, if
+    // prims which are part of the consolidation are no longer required (for example they were
+    // hidden from view), we need to break the consolidation.
+    size_t inConsolidation = 0;
+    for (const auto& primData : renderData) {
+        std::vector<int> consolidatedSubsets;
+        for (int i = 0; i < primData->shadedSubsets.size(); ++i) {
+            auto& data = primData->shadedSubsets[i];
+            if (!data.inConsolidation) {
+                continue;
+            }
+
+            inConsolidation++;
+
+            // Not dirty -> nothing to update for this render data.
+            if (data.dirtyBits == HdMaxChangeTracker::Clean) {
+                continue;
+            }
+
+            consolidatedSubsets.push_back(i);
+
+            // Data is dirty, and not in dynamic mode, break.
+            if (previousTime != newTime && config.strategy != Strategy::Dynamic) {
+                breakConsolidation = true;
+            }
+
+            // Some changes to the data prevent us from updating the vertex buffers, typically when
+            // size of meshes change.
+            breakConsolidation
+                = breakConsolidation
+                || HdMaxChangeTracker::CheckDirty(
+                      data.dirtyBits,
+                      HdMaxChangeTracker::DirtyIndices
+                          | // No support for index buffer update, not as common.
+                          HdMaxChangeTracker::DirtyIndicesSize | HdMaxChangeTracker::DirtyPointsSize
+                          | HdMaxChangeTracker::DirtyNormalsSize | HdMaxChangeTracker::DirtyUvsSize
+                          | HdMaxChangeTracker::DirtyVertexColorsSize
+                          | HdMaxChangeTracker::DirtyTransformsSize
+                          | HdMaxChangeTracker::DirtyVisibility
+                          | HdMaxChangeTracker::DirtyMaterial);
+
+            if (breakConsolidation) {
+                break;
+            }
+        }
+
+        if (!consolidatedSubsets.empty()) {
+            dirtyConsolidatedData.push_back({ primData, consolidatedSubsets });
+            consolidationIsDirty |= true;
+        }
+    }
+
+    // If render data that was previous consolidated, is no longer there, we need to break...
+    breakConsolidation |= inConsolidation != currentConsolidation->primToGeom.size();
+
+    if (breakConsolidation) {
+        Reset();
+        return;
+    }
+
+    // Do the update...
+    if (consolidationIsDirty) {
+        std::unordered_map<MaxSDK::Graphics::Identifier, int> updateMap {};
+        for (const auto& primData : dirtyConsolidatedData) {
+            for (int i = 0; i < primData.consolidatedSubsets.size(); ++i) {
+                auto material = primData.primRenderData->ResolveViewportMaterial(
+                    primData.primRenderData->shadedSubsets[primData.consolidatedSubsets[i]],
+                    config.displaySettings,
+                    false);
+                updateMap[material.GetObjectID()]++;
+            }
+        }
+
+        // Render data which needs updating in the consolidated geometries. For each material, a set
+        // of inputs.
+        std::unordered_map<MaxSDK::Graphics::Identifier, std::vector<Input>> updateData {};
+
+        for (const auto& entry : updateMap) {
+            updateData[entry.first].reserve(entry.second);
+        }
+
+        for (const auto& primData : dirtyConsolidatedData) {
+            // Figure out the "actual" material subsets from the final material in the viewport.
+            // Indeed, if all geomSubsets are bound the same material, we can treat it as a single
+            // mesh. We want to, as much as possible, avoid duplication of vertex buffers and so we
+            // try to fit subsets with the same materials, on the same consolidated meshes. Therefor
+            // we consider the total number of triangles sharing the same material, if multiple
+            // subsets use the same materials.
+            std::vector<SubsetInfo>                                              subsetInfos;
+            std::vector<std::pair<MaxSDK::Graphics::BaseMaterialHandle, size_t>> materialTris;
+            ComputeSubsetInfo(*primData.primRenderData, subsetInfos, materialTris);
+
+            for (int i = 0; i < primData.consolidatedSubsets.size(); i++) {
+                auto subsetIdx = primData.consolidatedSubsets[i];
+
+                const auto it = std::find_if(
+                    materialTris.begin(),
+                    materialTris.end(),
+                    [&subsetInfos, subsetIdx](const auto& pair) {
+                        return pair.first == subsetInfos[subsetIdx].material;
+                    });
+
+                const auto numTriWithSameMaterial = it->second;
+
+                std::vector<Input> inputs;
+                GenerateInputs(primData.primRenderData, subsetIdx, numTriWithSameMaterial, inputs);
+                auto mat = primData.primRenderData->ResolveViewportMaterial(
+                    primData.primRenderData->shadedSubsets[primData.consolidatedSubsets[i]],
+                    config.displaySettings,
+                    false);
+                for (const auto& input : inputs) {
+                    updateData[mat.GetObjectID()].push_back(input);
+                }
+            }
+        }
+
+        for (const auto& geom : *currentConsolidation->geoms) {
+            // Update the vertex buffers. The shaded and wireframe render items share the same
+            // buffers. Track whether the consolidated geometry is build from selected prims. We
+            // need to know this to select the right render item(s) later.
+            UpdateVertexBuffers(
+                geom->renderItem.GetRenderGeometry()->GetVertexBuffers(),
+                updateData[geom->material.GetObjectID()],
+                geom->dataMapping,
+                false,
+                geom->hasActiveSelection);
+        }
+    }
+
+    // Remove the previous time from the cache.
+    consolidationCache.erase(previousTime);
+
+    // Finally, if we have a valid consolidation, add it to the cache.
+    consolidationCache[newTime] = currentConsolidation;
+}
+
+MaxSDK::Graphics::RenderItemHandle&
+HdMaxConsolidator::ConsolidatedGeom::GetRenderItem(bool wireframe)
+{
+    if (wireframe) {
+        if (hasActiveSelection) {
+            return wireframeRenderItemSelection;
+        }
+        return wireframeRenderItem;
+    }
+
+    if (hasActiveSelection) {
+        return renderItemSelection;
+    }
+    return renderItem;
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxConsolidator.h b/src/RenderDelegate/HdMaxConsolidator.h
new file mode 100644
index 0000000..6a5b78b
--- /dev/null
+++ b/src/RenderDelegate/HdMaxConsolidator.h
@@ -0,0 +1,346 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "HdMaxDisplaySettings.h"
+#include "HdMaxRenderData.h"
+#include "MaxRenderGeometryFacade.h"
+#include "RenderDelegateAPI.h"
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <Graphics/CustomRenderItemHandle.h>
+#include <Graphics/GeometryRenderItemHandle.h>
+#include <Graphics/IndexBufferHandle.h>
+
+#include <max.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+class HdMaxRenderDelegate;
+PXR_NAMESPACE_CLOSE_SCOPE
+
+/**
+ * \brief Helper class to consolidate nitrous render data.
+ */
+class RenderDelegateAPI HdMaxConsolidator
+{
+public:
+    typedef std::pair<pxr::SdfPath, int> PrimSubsetKey;
+
+    struct PrimSubsetHash
+    {
+        size_t operator()(PrimSubsetKey key) const
+        {
+            std::size_t hash = pxr::SdfPath::Hash {}(key.first);
+            boost::hash_combine(hash, key.second);
+            return hash;
+        }
+    };
+    typedef pxr::TfHashSet<PrimSubsetKey, PrimSubsetHash> PrimSubsetSet;
+
+    enum class Strategy
+    {
+        Static,  // Only consolidate when not animating (currentTime == previousTime).
+        Dynamic, // Try to update the consolidation dynamically if possible (vertex animation).
+        Off      // Do not consolidate.
+    };
+
+    // Consolidation configuration...
+    struct Config
+    {
+
+        Strategy             strategy = Strategy::Off;
+        bool                 visualize = false; // If true, consolidation cells are showed in color.
+        size_t               maxTriangles = 0;
+        size_t               maxInstanceCount = 0;
+        size_t               maxCellSize = 0;
+        long long            staticDelay = 500;
+        HdMaxDisplaySettings displaySettings;
+        bool                 operator==(const Config& config) const;
+    };
+
+    // An input Prim geometry (possibly instanced), candidate for consolidation.
+    struct Input
+    {
+        static const int InvalidMultipartIndex = -1;
+
+        pxr::SdfPath      primPath;
+        int               subsetIndex = 0;
+        pxr::VtVec3iArray indices;
+        pxr::VtIntArray   wireIndices;
+        pxr::VtVec3fArray points;
+        pxr::VtVec3fArray normals;
+        pxr::VtVec3fArray uvs;
+
+        std::vector<Matrix3> transforms;
+        // Which transforms (instances) are selected. Size will always match the transforms array.
+        std::vector<bool> selection;
+
+        int              multipartIndex = InvalidMultipartIndex;
+        pxr::HdDirtyBits dirtyBits = HdMaxChangeTracker::Clean;
+    };
+
+    // A mapping of a given USD prim in a consolidated mesh.
+    struct Mapping
+    {
+        pxr::SdfPath primPath;
+        // Where this prim in in the consolidated buffer. It can be there multiple
+        // times if the mesh is instanced.
+        pxr::VtIntArray offsets;
+        // Size of the mesh associated with the prim in the consolidated buffer.
+        size_t vertexCount { 0 };
+        int    multipartIndex = Input::InvalidMultipartIndex;
+    };
+
+    // A Consolidation Cell is a collection of collection inputs, which might get consolidated
+    // into a single mesh. Depending on configuration, cells can be limited in size.
+    // For example, if we have 10 prims of 1000 vertices, but a maximum cell size of 5000 vertices,
+    // then we would end up with two consolidated meshes (each composed of 5 prims).
+    // 10 * 1000 = 10000 = 5000 * 2
+    struct Cell
+    {
+        size_t             numTris = 0;
+        std::vector<Input> inputs;
+    };
+
+    // Consolidated geometry - built from a ConsolidationCell.
+    struct ConsolidatedGeom
+    {
+        MaxSDK::Graphics::GeometryRenderItemHandle renderItem;
+        MaxSDK::Graphics::GeometryRenderItemHandle wireframeRenderItem;
+        // When we need to display selection, use a custom render items that can perform
+        // an additional pass to display highlighting. We only use it when needed as there is
+        // a performance cost to custom render items (even without the additional render pass).
+        MaxSDK::Graphics::CustomRenderItemHandle renderItemSelection;
+        MaxSDK::Graphics::CustomRenderItemHandle wireframeRenderItemSelection;
+
+        MaxSDK::Graphics::BaseMaterialHandle                      material;
+        pxr::TfHashMap<pxr::SdfPath, Mapping, pxr::SdfPath::Hash> dataMapping;
+        bool                                                      hasActiveSelection { false };
+
+        MaxSDK::Graphics::RenderItemHandle& GetRenderItem(bool wireframe);
+    };
+    typedef std::shared_ptr<ConsolidatedGeom>       ConsolidatedGeomPtr;
+    typedef std::vector<ConsolidatedGeomPtr>        ConsolidatedGeomVector;
+    typedef std::shared_ptr<ConsolidatedGeomVector> ConsolidatedGeomVectorPtr;
+
+    struct RenderDataInfo
+    {
+        // Last known index of the render data in the render delegate.
+        // using this to retrieve the render data is faster then from the path,
+        // we save a map lookup. Always use renderDelegate->SafeGetRenderData()
+        // when using this index to fetch render data.
+        size_t index;
+        // The path of the prim this render data is for.
+        pxr::SdfPath primPath;
+        // Material subset index.
+        int subsetIdx;
+    };
+
+    // Consolidation output, a bunch of consolidated mesh and information about what prim
+    // went into what consolidated mesh.
+    struct Output
+    {
+        // All resulting consolidated meshes.
+        ConsolidatedGeomVectorPtr geoms = std::make_shared<ConsolidatedGeomVector>();
+        // Mapping from a prim path and material index to geometry.
+        pxr::TfHashMap<PrimSubsetKey, ConsolidatedGeomVector, PrimSubsetHash> primToGeom;
+        // Description of the source render data used.
+        std::vector<RenderDataInfo> sourceRenderData;
+        // Description of the render data that was actually consolidated.
+        std::vector<RenderDataInfo> consolidatedRenderData;
+    };
+    typedef std::shared_ptr<Output> OutputPtr;
+
+    /**
+     * \brief Constructor
+     * \param renderDelegate Pointer to the render delegate from which the render data we are consolidating
+     * originates.
+     */
+    HdMaxConsolidator(const std::shared_ptr<pxr::HdMaxRenderDelegate>& renderDelegate);
+
+    /**
+     * \brief Resets the consolidator, clearing any cached consolidation output.
+     */
+    void Reset();
+
+    /**
+     * \brief Returns the consolidation output for the given time if it exists in the cache.
+     * \param time The time to get the consolidation for.
+     * \return The consolidation output.
+     */
+    OutputPtr GetConsolidation(const pxr::UsdTimeCode& time) const;
+
+    /**
+     * \brief Returns the current configuration for the consolidator.
+     * \return The config.
+     */
+    const Config& GetConfig() const;
+
+    /**
+     * \brief Sets the consolidator config.
+     * \param config The new config.
+     */
+    void SetConfig(const Config& config);
+
+    /**
+     * \brief Gets the Prim subsets that are part of the consolidation at the given time.
+     * \param time The time at which to get the consolidated Prim subsets.
+     * \param consolidatedPrimSubsets Output, the prim subsets that are consolidated at the given time.
+     */
+    void GetConsolidatedPrimSubsets(
+        const pxr::UsdTimeCode& time,
+        PrimSubsetSet&          consolidatedPrimSubsets) const;
+
+    /**
+     * \brief Builds the consolidation for the given render data, appending to any pre-existing and valid consolidation at that time.
+     * \param renderData The USD prim render data to consider for consolidation.
+     * \param time The time code at which the consolidation takes place.
+     * \param wireMaterial The wireframe material to use for consolidated wireframe data.
+     * \return The consolidation output result.
+     */
+    OutputPtr BuildConsolidation(
+        const std::vector<HdMaxRenderData*>&        renderData,
+        const pxr::UsdTimeCode&                     time,
+        const MaxSDK::Graphics::BaseMaterialHandle& wireMaterial);
+
+    /**
+     * \brief Attempts to update the consolidation at a given time, given the current consolidation config.
+     * There are three possible results to calling this function :
+     * 1) The consolidation is still valid, and remains unchanged.
+     * 2) The consolidation must be broken as it cannot be updated (because of configuration, or
+     * data changes). 3) The consolidation is updated - for example : vertex position animation.
+     * \param renderData The render data that we should source the update from.
+     * \param previousTime The timeCode of the consolidation we want to update.
+     * \param newTime The timeCode associated with the new consolidation.
+     */
+    void UpdateConsolidation(
+        const std::vector<HdMaxRenderData*>& renderData,
+        const pxr::UsdTimeCode&              previousTime,
+        const pxr::UsdTimeCode&              newTime);
+
+private:
+    /**
+     * \brief Generates consolidation inputs from a USD prim's render data. We may need multiple consolidation
+     * inputs for a single USD prim if it is instanced (it may then need to be split across multiple
+     * consolidation cells).
+     * \param primRenderData The USD prim render data.
+     * \param subsetIndex The material subset we are creating the input(s) for.
+     * \param numTriWithSameMaterial The total number of triangles in the render data that share the same material as this subset.
+     * \param inputs Filled by the function, the generated consolidation inputs.
+     */
+    void GenerateInputs(
+        const HdMaxRenderData* primRenderData,
+        int                    subsetIndex,
+        size_t                 numTriWithSameMaterial,
+        std::vector<Input>&    inputs) const;
+
+    /**
+     * \brief Builds the consolidation cells from the USD prims' render data. A consolidation cell
+     * essentially holds a bunch of geometry that will be consolidated (merged) together. We can
+     * only merge geometry that shares the same material. For any given material, you will therefor
+     * end up with one or more cells, indeed, cells are capped in size, so we may not merge all of
+     * the geometry sharing the same material into a single mesh. Any existing / valid consolidation
+     * is considered, i.e. the cells returned are only created from USD Prims that are not already
+     * part of a valid consolidation.
+     * \param renderData The candidate render data.
+     * \param cells Output, the built cells, organized by material.
+     * \param time The timeCode, used to consider any cached consolidation.
+     */
+    void BuildConsolidationCells(
+        const std::vector<HdMaxRenderData*>&                               renderData,
+        std::map<MaxSDK::Graphics::BaseMaterialHandle, std::vector<Cell>>& cells,
+        const pxr::UsdTimeCode&                                            time);
+
+    /**
+     * \brief Builds a consolidated Nitrous index buffer for the given cell.
+     * \param cell The cell being consolidated.
+     * \param output The created nitrous index buffer.
+     * \param wireframe True if we are consolidating the wireframe indices, false otherwise.
+     */
+    void BuildIndexBuffer(
+        const Cell&                          cell,
+        MaxSDK::Graphics::IndexBufferHandle& output,
+        bool                                 wireframe) const;
+
+    /**
+     * \brief Builds the consolidated Nitrous vertex buffers for the given cell.
+     * \param cell The cell being consolidated.
+     * \param outputs The built vertex buffers.
+     * \param result The consolidated geometry object - this is where we keep track of where each prim is in the
+     * consolidation, so it can be updated later.
+     */
+    void BuildVertexBuffers(
+        const Cell&                                cell,
+        MaxSDK::Graphics::VertexBufferHandleArray& outputs,
+        ConsolidatedGeom&                          result);
+
+    /**
+     * \brief Update's a consolidated geometry vertex buffers, with new vertex data from updated USD
+     * prim render data.
+     * \param toUpdate Vertex buffers to be updated. Expect up to 4 buffers :
+     *      0 -> *Points 1 -> Normals 2 -> Vertex Color (selection) 3 -> UVs
+     * \param inputs Consolidation inputs, holding the updated data - the inputs passed may not all
+     * be mapped into the buffers.
+     * \param mappings Consolidation mappings, informs about where in the consolidation each prim's data is.
+     * \param fullUpdate If true, the update is done regardless of the "dirty" status of the prim
+     * render data. A prim that was previously unconsolidated may not be dirty, as it is properly
+     * loaded in its own render item, but when it does get consolidated, we still want it loaded in
+     * the consolidation.
+     * \param hasSelectionHighlight Output argument, will be set to true if at
+     * least one of the consolidated inputs has an active selection. I.e. the selection buffer has
+     * some selection loaded. The passed value is unaffected if selection is not dirty, and a full
+     * update is not forced.
+     */
+    void UpdateVertexBuffers(
+        MaxSDK::Graphics::VertexBufferHandleArray&                       toUpdate,
+        const std::vector<Input>&                                        inputs,
+        const pxr::TfHashMap<pxr::SdfPath, Mapping, pxr::SdfPath::Hash>& mappings,
+        bool                                                             fullUpdate,
+        bool&                                                            hasSelectionHighlight);
+
+    /**
+     * \brief Helper, appends an index buffer, offsetting its value with a base index.
+     * \param destIdx Destination index buffer.
+     * \param srcIdx Source index buffer.
+     * \param baseIndex Base index, we offset the "source" indices by this value.
+     * \param count The source buffer size.
+     */
+    static void AppendIndexBuffer(int* destIdx, UINT* srcIdx, int baseIndex, size_t count);
+
+    struct SubsetInfo
+    {
+        MaxSDK::Graphics::BaseMaterialHandle material;
+        size_t                               numTris = 0;
+    };
+
+    /**
+     * \brief Computes some information on the subsets of a prim's render data. Notably the material that
+     * will be used in the viewport, and the number of triangles.
+     * \param renderData The render data to compute the subset infos for.
+     * \param subsetInfo Output variable,
+     * \param materialTris Output variable, for each unique material, the total number of triangles using
+     * the material amongst all subsets.
+     */
+    void ComputeSubsetInfo(
+        const HdMaxRenderData&                                                renderData,
+        std::vector<SubsetInfo>&                                              subsetInfo,
+        std::vector<std::pair<MaxSDK::Graphics::BaseMaterialHandle, size_t>>& materialTris) const;
+
+    std::shared_ptr<pxr::HdMaxRenderDelegate>                renderDelegate;
+    Config                                                   config;
+    pxr::TfHashMap<pxr::UsdTimeCode, OutputPtr, pxr::TfHash> consolidationCache;
+};
diff --git a/src/RenderDelegate/HdMaxDisplayPreferences.cpp b/src/RenderDelegate/HdMaxDisplayPreferences.cpp
new file mode 100644
index 0000000..e16dc79
--- /dev/null
+++ b/src/RenderDelegate/HdMaxDisplayPreferences.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "HdMaxDisplayPreferences.h"
+
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+TF_DEFINE_PUBLIC_TOKENS(MaxUsdDisplayPreferencesTokens, PXR_MAXUSD_DISPLAY_PREFERENCES_TOKENS);
+PXR_NAMESPACE_CLOSE_SCOPE
+
+// Initialize the static instance variable to nullptr
+HdMaxDisplayPreferences* HdMaxDisplayPreferences::instance = nullptr;
+
+HdMaxDisplayPreferences::HdMaxDisplayPreferences() { Load(); }
+
+void HdMaxDisplayPreferences::SetSelectionHighlightEnabled(bool enable)
+{
+    if (enable != GetSelectionHighlightEnabled()) {
+        options[pxr::MaxUsdDisplayPreferencesTokens->selectionHighlightEnabled] = enable;
+        saveNeeded = true;
+    }
+}
+
+bool HdMaxDisplayPreferences::GetSelectionHighlightEnabled()
+{
+    return pxr::VtDictionaryGet<bool>(
+        options, pxr::MaxUsdDisplayPreferencesTokens->selectionHighlightEnabled);
+}
+
+void HdMaxDisplayPreferences::SetSelectionColor(const AColor& color)
+{
+    if (color != GetSelectionColor()) {
+        options[pxr::MaxUsdDisplayPreferencesTokens->selectionColor] = color;
+        saveNeeded = true;
+    }
+}
+
+const AColor& HdMaxDisplayPreferences::GetSelectionColor()
+{
+    return pxr::VtDictionaryGet<AColor>(
+        options, pxr::MaxUsdDisplayPreferencesTokens->selectionColor);
+}
+
+const pxr::VtDictionary& HdMaxDisplayPreferences::GetDefaultDictionary()
+{
+    static pxr::VtDictionary d;
+    static std::once_flag    once;
+    std::call_once(once, []() {
+        d[pxr::MaxUsdDisplayPreferencesTokens->version] = 1;
+        // Base defaults.
+        d[pxr::MaxUsdDisplayPreferencesTokens->selectionColor] = AColor { 1.0f, 0.0f, 0.0f, 1.0f };
+        d[pxr::MaxUsdDisplayPreferencesTokens->selectionHighlightEnabled] = true;
+    });
+    return d;
+}
+
+namespace {
+const std::string optionsCategoryKey = "DisplayPreferences";
+}
+
+void HdMaxDisplayPreferences::Load()
+{
+    MaxUsd::OptionUtils::LoadUiOptions(optionsCategoryKey, options, GetDefaultDictionary());
+}
+
+void HdMaxDisplayPreferences::Save()
+{
+    if (saveNeeded) {
+        MaxUsd::OptionUtils::SaveUiOptions(optionsCategoryKey, options);
+        saveNeeded = false;
+    }
+}
diff --git a/src/RenderDelegate/HdMaxDisplayPreferences.h b/src/RenderDelegate/HdMaxDisplayPreferences.h
new file mode 100644
index 0000000..2552e3f
--- /dev/null
+++ b/src/RenderDelegate/HdMaxDisplayPreferences.h
@@ -0,0 +1,115 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsd/Utilities/DictionaryOptionProvider.h"
+#include "RenderDelegateAPI.h"
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/base/vt/dictionary.h>
+
+#pragma once
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/acolor.h>
+#else
+#include <acolor.h>
+#endif
+
+PXR_NAMESPACE_OPEN_SCOPE
+// clang-format off
+#define PXR_MAXUSD_DISPLAY_PREFERENCES_TOKENS \
+	/* Dictionary keys */ \
+	(version) \
+	(selectionColor) \
+	(selectionHighlightEnabled)
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    MaxUsdDisplayPreferencesTokens,
+    RenderDelegateAPI,
+    PXR_MAXUSD_DISPLAY_PREFERENCES_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+class RenderDelegateAPI HdMaxDisplayPreferences : MAXUSD_NS_DEF::DictionaryOptionProvider
+{
+public:
+    /**
+     * \Brief Get the instance of the class
+     * @return The instance of the class
+     */
+    static HdMaxDisplayPreferences& GetInstance()
+    {
+        if (!instance) {
+            instance = new HdMaxDisplayPreferences();
+        }
+        return *instance;
+    }
+
+    // Delete the copy constructor and assignment operator
+    HdMaxDisplayPreferences(const HdMaxDisplayPreferences&) = delete;
+    HdMaxDisplayPreferences& operator=(const HdMaxDisplayPreferences&) = delete;
+
+    /**
+     * \brief Enable selection highlighting, globally (all stage objects can share this setting).
+     * \param enable True if selection highlighting should be enabled.
+     */
+    void SetSelectionHighlightEnabled(bool enable);
+
+    /**
+     * \brief Returns whether selection highlighting is enabled globally.
+     * \return True if enabled.
+     */
+    bool GetSelectionHighlightEnabled();
+
+    /**
+     * \brief Sets the color used for selection highlighting.
+     * \param color The color to use.
+     */
+    void SetSelectionColor(const AColor& color);
+
+    /**
+     * \brief Gets the color used for selection highlighting.
+     * \return The color.
+     */
+    const AColor& GetSelectionColor();
+
+    /**
+     * \brief Saves the display preferences to the user saved preferences.
+     */
+    void Save();
+
+private:
+    // Private constructor/destructor
+    HdMaxDisplayPreferences();
+    ~HdMaxDisplayPreferences() = default;
+
+    // The instance of the class
+    static HdMaxDisplayPreferences* instance;
+
+    /**
+     * \brief Returns the default dictionary for the Display Preferences options.
+     * \return The default dictionary for the Display Preferences options.
+     */
+    const pxr::VtDictionary& GetDefaultDictionary();
+
+    /**
+     * \brief Loads the display preferences from the user saved preferences.
+     * If nothing was saved, the default values are used.
+     */
+    void Load();
+
+    bool saveNeeded = false;
+};
diff --git a/src/RenderDelegate/HdMaxDisplaySettings.cpp b/src/RenderDelegate/HdMaxDisplaySettings.cpp
new file mode 100644
index 0000000..2873cf9
--- /dev/null
+++ b/src/RenderDelegate/HdMaxDisplaySettings.cpp
@@ -0,0 +1,63 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxDisplaySettings.h"
+
+#include "HdMaxColorMaterial.h"
+
+HdMaxDisplaySettings::HdMaxDisplaySettings() { }
+
+void HdMaxDisplaySettings::SetDisplayMode(
+    DisplayMode           displayMode,
+    pxr::HdChangeTracker& changeTracker)
+{
+    if (this->displayMode != displayMode) {
+        // Dirty primvars, but also material assignment - both might be impacted (for example, no
+        // need for uvs if using colors).
+        changeTracker.MarkAllRprimsDirty(
+            pxr::HdChangeTracker::DirtyPrimvar | pxr::HdChangeTracker::DirtyMaterialId);
+    }
+    this->displayMode = displayMode;
+}
+
+HdMaxDisplaySettings::DisplayMode HdMaxDisplaySettings::GetDisplayMode() const
+{
+    return displayMode;
+}
+
+const MaxSDK::Graphics::StandardMaterialHandle&
+HdMaxDisplaySettings::GetWireColorMaterial(bool instanced) const
+{
+    return instanced ? wireColorInstancedHandle : wireColorHandle;
+}
+
+void HdMaxDisplaySettings::SetWireColor(Color wireColor, pxr::HdChangeTracker& changeTracker)
+{
+    if (this->wireColor == wireColor) {
+        return;
+    }
+    this->wireColor = wireColor;
+    changeTracker.MarkAllRprimsDirty(pxr::HdChangeTracker::DirtyMaterialId);
+    wireColorHandle = HdMaxColorMaterial::Get(wireColor, false);
+    wireColorInstancedHandle = HdMaxColorMaterial::Get(wireColor, true);
+}
+
+bool HdMaxDisplaySettings::operator==(const HdMaxDisplaySettings& settings) const
+{
+    return this->displayMode == settings.displayMode
+        && this->wireColorHandle == settings.wireColorHandle
+        && this->wireColorInstancedHandle == settings.wireColorInstancedHandle
+        && this->wireColor == settings.wireColor;
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxDisplaySettings.h b/src/RenderDelegate/HdMaxDisplaySettings.h
new file mode 100644
index 0000000..f22767d
--- /dev/null
+++ b/src/RenderDelegate/HdMaxDisplaySettings.h
@@ -0,0 +1,55 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "RenderDelegateAPI.h"
+
+#include <Graphics/StandardMaterialHandle.h>
+
+/**
+ * \brief Holds 3dsMax viewport display settings for a USD Stage object.
+ * Setters take in a changeTracker object, so that the appropriate bit(s) can be dirtied.
+ * for the next render call.
+ */
+class RenderDelegateAPI HdMaxDisplaySettings
+{
+public:
+    enum DisplayMode
+    {
+        WireColor,
+        USDDisplayColor,
+        USDPreviewSurface
+    };
+
+    HdMaxDisplaySettings();
+
+    void        SetDisplayMode(DisplayMode displayMode, pxr::HdChangeTracker& changeTracker);
+    DisplayMode GetDisplayMode() const;
+
+    const MaxSDK::Graphics::StandardMaterialHandle& GetWireColorMaterial(bool instanced) const;
+    void SetWireColor(Color wireColor, pxr::HdChangeTracker& changeTracker);
+
+    bool operator==(const HdMaxDisplaySettings& displaySettings) const;
+
+private:
+    DisplayMode displayMode = USDPreviewSurface;
+
+    // Wire Color materials. Keep one for regular data and a separate one for instanced data,
+    // workaround for an issue with the instancing API which can break the material of regular
+    // data if shared...
+    MaxSDK::Graphics::StandardMaterialHandle wireColorHandle;
+    MaxSDK::Graphics::StandardMaterialHandle wireColorInstancedHandle;
+    Color                                    wireColor;
+};
diff --git a/src/RenderDelegate/HdMaxEngine.cpp b/src/RenderDelegate/HdMaxEngine.cpp
new file mode 100644
index 0000000..52482ff
--- /dev/null
+++ b/src/RenderDelegate/HdMaxEngine.cpp
@@ -0,0 +1,863 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxEngine.h"
+
+#include "HdMaxChangeTracker.h"
+#include "HdMaxConsolidator.h"
+#include "Imaging/HdMaxRenderDelegate.h"
+
+#include <MaxUsd/Utilities/MeshUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/base/gf/frustum.h>
+#include <pxr/base/trace/trace.h>
+#include <pxr/imaging/hd/renderIndex.h>
+#include <pxr/imaging/hd/tokens.h>
+#include <pxr/imaging/hdx/renderTask.h>
+
+#include <Graphics/CustomRenderItemHandle.h>
+#include <Graphics/IVirtualDevice.h>
+#include <maxscript/mxsplugin/mxsCustomAttributes.h>
+
+#include <Rendering/IRenderMessageManager.h>
+#include <mesh.h>
+#include <stdmat.h>
+
+HdMaxEngine::HdMaxEngine()
+{
+    renderDelegate = std::make_shared<pxr::HdMaxRenderDelegate>();
+    consolidator = std::make_unique<HdMaxConsolidator>(renderDelegate);
+}
+
+HdMaxEngine::~HdMaxEngine()
+{
+    // Make sure the renderIndex is destroyed first, as it depends on other members
+    // (renderDelegate/sceneDelegate)
+    renderIndex.release();
+}
+
+void HdMaxEngine::HydraRender(
+    const pxr::GfMatrix4d&    rootTransform,
+    const pxr::UsdTimeCode&   timeCode,
+    const pxr::TfTokenVector& renderTags,
+    bool                      loadAllUnmappedPrimvars)
+{
+    TRACE_FUNCTION();
+
+    // When rendering to render meshes, load all mapped primvars (even if not used by a USDPreview
+    // surface material, perhaps a material override might use it).
+    renderDelegate->SetRenderSetting(
+        pxr::TfToken("loadAllMappedPrimvars"), pxr::VtValue(loadAllUnmappedPrimvars));
+
+    this->sceneDelegate->SetRootTransform(rootTransform);
+
+    // Perform the actual rendering.
+    PrepareBatch(timeCode, renderTags);
+    RenderBatch();
+
+    // Deal with any render data that needs to be deleted for this mesh (for example,
+    // if the topology has changed). We keep these around until now to make sure render
+    // items get ref counted to 0 while on the main thread, it can cause issues otherwise.
+    this->renderDelegate->GarbageCollect();
+}
+
+void HdMaxEngine::UpdateMaterialIdsList(
+    const std::vector<HdMaxRenderData*>&     renderData,
+    std::shared_ptr<HdMaxMaterialCollection> collection)
+{
+    // Keep track of the materials that have been converted. Generate an ID for each.
+    materials.clear();
+    auto nextMaterialId = 0;
+
+    // Update material.
+    for (const auto& primRenderData : renderData) {
+        for (const HdMaxRenderData::SubsetRenderData& subGeom : primRenderData->shadedSubsets) {
+            // Fallback to the displayColor for rendering, if no material is defined.
+            auto renderMaterialKey
+                = subGeom.materialData ? subGeom.materialData->GetId() : pxr::SdfPath {};
+            auto renderMaterial = subGeom.materialData ? subGeom.materialData->GetMaxMaterial()
+                                                       : collection->GetDisplayColorMaterial();
+            const auto inserted
+                = materials.insert({ renderMaterialKey, { nextMaterialId, renderMaterial } });
+            if (inserted.second) {
+                nextMaterialId++;
+            }
+        }
+    }
+}
+
+void HdMaxEngine::UpdateMultiMaterial(MultiMtl* multiMat) const
+{
+    if (!multiMat) {
+        return;
+    }
+
+    multiMat->SetNumSubMtls(int(materials.size()));
+    for (const auto& matRef : materials) {
+        auto material = matRef.second.second->GetAs<Mtl>();
+        multiMat->SetSubMtlAndName(matRef.second.first, material, material->GetName());
+    }
+}
+
+HdMaxConsolidator::OutputPtr HdMaxEngine::Consolidate(
+    const std::vector<HdMaxRenderData*>&        renderData,
+    const pxr::UsdTimeCode&                     lastTimeCode,
+    const pxr::UsdTimeCode&                     timeCode,
+    const HdMaxConsolidator::Config&            config,
+    const MaxSDK::Graphics::BaseMaterialHandle& wireMaterial)
+{
+    HdMaxConsolidator::OutputPtr consolidation = nullptr;
+    auto&                        currentConsolidationConfig = consolidator->GetConfig();
+
+    // If the consolidation configuration has changed, we need to restart the consolidation from
+    // scratch.
+    if (!(currentConsolidationConfig == config)) {
+        consolidator->Reset();
+        consolidator->SetConfig(config);
+    } else {
+        // Attempt to update the consolidation...
+        consolidator->UpdateConsolidation(renderData, lastTimeCode, timeCode);
+    }
+
+    // Figure out if we are in a static or dynamic context for the purpose of consolidation.
+    // Static -> animation is stopped, the render timeCode is stable for more than "staticDelay"
+    // miliseconds. Dynamic -> animating (either "play" or scrubbing the timeline)
+    bool isStatic = false;
+    if (config.staticDelay == 0) {
+        isStatic = true;
+    } else {
+        if (lastTimeCode == timeCode) {
+            if (!staticDelayStarted) {
+                staticDelayStarted = true;
+                staticDelayStartTime = std::chrono::system_clock::now();
+            } else {
+                const auto now = std::chrono::system_clock::now();
+                const auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(
+                    now - staticDelayStartTime);
+                if (elapsed.count() >= config.staticDelay) {
+                    isStatic = true;
+                }
+            }
+        } else {
+            staticDelayStarted = false;
+        }
+    }
+
+    // Unless we are in "dynamic" mode, only consolidate if the time is stopped.
+    if (config.strategy != HdMaxConsolidator::Strategy::Off
+        && (isStatic || config.strategy == HdMaxConsolidator::Strategy::Dynamic)) {
+        const auto existingConsolidation = consolidator->GetConsolidation(timeCode);
+        // Check if the consolidation we already have was built from the same prims. If new prims
+        // are added we need to build new consolidated geometries for those.
+        auto isSameSourceData = [&existingConsolidation, &renderData]() {
+            // existingConsolidation->sourceRenderData contains an entry for each subset.
+            auto it = existingConsolidation->sourceRenderData.begin();
+            for (const auto& rd : renderData) {
+                for (int i = 0; i < rd->shadedSubsets.size(); ++i) {
+                    if (it->primPath != rd->rPrimPath) {
+                        return false;
+                    }
+                    ++it;
+                }
+            }
+            return true;
+        };
+
+        if (existingConsolidation && isSameSourceData()) {
+            consolidation = existingConsolidation;
+        } else {
+            consolidation = consolidator->BuildConsolidation(renderData, timeCode, wireMaterial);
+        }
+    }
+    // However, if we have a still valid consolidation, we can use it.
+    else if (config.strategy == HdMaxConsolidator::Strategy::Static && !isStatic) {
+        consolidation = consolidator->GetConsolidation(timeCode);
+    }
+
+    // If we have a consolidation, update the dirty bits of whatever was consolidated.
+    if (consolidation) {
+        for (const auto& renderDataInfo : consolidation->consolidatedRenderData) {
+            // SafeGetRenderData() allows us to pass the index of the render data held by the
+            // delegate AND the prim path. The index almost never changes (it can only change when
+            // things are removed, i.e. when a prim is deactivated) This allows us to avoid a map
+            // lookup cost, in most cases. If the given id doesn't match the path, we fallback to
+            // using the path to find the render data.
+            auto& primRenderData
+                = renderDelegate->SafeGetRenderData(renderDataInfo.index, renderDataInfo.primPath);
+            if (primRenderData.rPrimPath.IsEmpty()
+                || renderDataInfo.subsetIdx >= primRenderData.shadedSubsets.size()) {
+                continue;
+            }
+            // Dirtiness is maintained for each shaded subset (i.e. subsets of the mesh requiring
+            // different shading).
+            HdMaxChangeTracker::ClearDirtyBits(
+                primRenderData.shadedSubsets[renderDataInfo.subsetIdx].dirtyBits);
+        }
+    }
+    return consolidation;
+}
+
+void HdMaxEngine::Render(
+    const pxr::UsdPrim&                           rootPrim,
+    const pxr::GfMatrix4d&                        rootTransform,
+    MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer,
+    const pxr::UsdTimeCode&                       timeCode,
+    const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+    MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+    const pxr::TfTokenVector&                     reprs,
+    const pxr::TfTokenVector&                     renderTags,
+    MultiMtl*                                     multiMat,
+    const HdMaxConsolidator::Config&              consolidationConfig,
+    ViewExp*                                      view,
+    bool                                          buildOfflineRenderMaterial,
+    const MaxUsd::ProgressReporter&               progressReporter)
+{
+    const auto maxNode = nodeContext.GetRenderNode().GetMaxNode();
+    Mtl*       nodeMtl = maxNode ? maxNode->GetMtl() : nullptr;
+
+    UpdateRootPrim(rootPrim, nodeMtl);
+    HydraRender(rootTransform, timeCode, renderTags);
+
+    std::vector<HdMaxRenderData*> renderData;
+    renderDelegate->GetVisibleRenderData(renderTags, renderData);
+
+    if (renderData.empty()) {
+        return;
+    }
+
+    auto& displaySettings = renderDelegate->GetDisplaySettings();
+
+    // Deal with the materials...
+    const auto materialCollection = renderDelegate->GetMaterialCollection();
+    // First, if we are requested to build the material for offline rendering, or if we are
+    // displaying in the VP using UsdPreviewSurface, build the materials (convert the hydra material
+    // networks to a 3dsMax materials).
+    const auto displayIsUsdPreviewSurface
+        = displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface;
+    if (buildOfflineRenderMaterial || displayIsUsdPreviewSurface) {
+        // Build updated materials.
+        materialCollection->BuildMaterials(
+            progressReporter,
+            GetRenderDelegate()->GetPrimvarMappingOptions(),
+            displayIsUsdPreviewSurface,
+            buildOfflineRenderMaterial);
+    }
+
+    // If we need to build the offline rendering material, also update the MultiMaterial we use for
+    // that purpose, setting the right amount of sub-materials and assigning our materials in each
+    // slot.
+    if (buildOfflineRenderMaterial) {
+        // Update the list of all material currently in use, and generate associated material Ids.
+        // We need to associate material Ids to each used materials in use in case we need to render
+        // the stage eventually. We need to do this regardless of whether the user has assigned the
+        // UsdPreviewSurface materials to the node we always want usd meshes bound to different
+        // materials, to be using different material ids.
+        UpdateMaterialIdsList(renderData, materialCollection);
+        UpdateMultiMaterial(multiMat);
+    }
+
+    const bool needShadedRepr
+        = std::find(reprs.begin(), reprs.end(), pxr::HdReprTokens->smoothHull) != reprs.end();
+    const bool needWireRepr
+        = std::find(reprs.begin(), reprs.end(), pxr::HdReprTokens->wire) != reprs.end();
+
+    // Attempt consolidation...
+    // On the first render, assume no time change.
+    const auto lastTime = this->lastVpRenderTime.IsDefault() ? timeCode : this->lastVpRenderTime;
+    this->lastVpRenderTime = timeCode;
+    const HdMaxConsolidator::OutputPtr consolidation = Consolidate(
+        renderData,
+        lastTime,
+        timeCode,
+        consolidationConfig,
+        nodeContext.GetRenderNode().GetWireframeMaterial());
+    if (consolidation) {
+        for (const auto& consolidatedGeom : *consolidation->geoms) {
+            if (needShadedRepr) {
+                targetRenderItemContainer.AddRenderItem(consolidatedGeom->GetRenderItem(false));
+            }
+            if (needWireRepr) {
+                auto& wireItem = consolidatedGeom->GetRenderItem(true);
+                wireItem.SetCustomMaterial(nodeContext.GetRenderNode().GetWireframeMaterial());
+                targetRenderItemContainer.AddRenderItem(wireItem);
+            }
+        }
+    }
+
+    // Finally add the render items for prims that were not consolidated.
+    // Avoid looking at every prim if we can. If we have as many consolidated prim subsets as there
+    // are subsets total, we can bail early.
+    const int totalSubsets
+        = std::accumulate(renderData.begin(), renderData.end(), 0, [](int total, const auto& data) {
+              return total + static_cast<int>(data->shadedSubsets.size());
+          });
+    if (consolidation && totalSubsets == consolidation->primToGeom.size()) {
+        return;
+    }
+
+    pxr::GfMatrix4d viewProjMatrixUsd;
+    if (view) {
+        MaxSDK::Graphics::Matrix44 viewProjectionMatrix;
+        Matrix3                    viewMatrixInv;
+        int                        perspective;
+        float                      hither, yon;
+        view->getGW()->getCameraMatrix(
+            viewProjectionMatrix.m, &viewMatrixInv, &perspective, &hither, &yon);
+        viewProjMatrixUsd = MaxUsd::ToUsd(viewProjectionMatrix);
+    }
+
+    const auto              objectTM = maxNode
+                     ? MaxUsd::ToUsd(maxNode->GetObjectTM(updateDisplayContext.GetDisplayTime()))
+                     : pxr::GfMatrix4d {}.SetIdentity();
+    std::unordered_set<int> consolidatedSubsets;
+    for (const auto& primRenderData : renderData) {
+        // Are all the material subsets already part of some still valid consolidated mesh? If so,
+        // we can skip this entire primRenderData..
+        consolidatedSubsets.clear();
+        for (int i = 0; i < primRenderData->shadedSubsets.size(); ++i) {
+            if (primRenderData->shadedSubsets[i].inConsolidation) {
+                consolidatedSubsets.insert(i);
+            }
+        }
+
+        if (consolidatedSubsets.size() == primRenderData->shadedSubsets.size()) {
+            continue;
+        }
+
+        // If a view information was given, perform frustum culling.
+        if (view) {
+            auto boundingBox = primRenderData->boundingBox;
+            boundingBox.Transform(objectTM);
+            auto worldSpaceBox = boundingBox.ComputeAlignedBox();
+            if (!pxr::GfFrustum::IntersectsViewVolume(worldSpaceBox, viewProjMatrixUsd)) {
+                continue;
+            }
+        }
+
+        // Load the index and vertex buffers into the render item.
+        primRenderData->UpdateRenderGeometry(false);
+
+        // No geometry loaded -> nothing to do. Only points and normals are absolutely required.
+        if (primRenderData->points.empty() || primRenderData->normals.empty()) {
+            continue;
+        }
+
+        // Shaded render items (one for each UsdGeomSubset) :
+        if (needShadedRepr) {
+            for (int i = 0; i < primRenderData->shadedSubsets.size(); ++i) {
+                // Is this shaded subset already consolidated?
+                if (consolidatedSubsets.find(i) != consolidatedSubsets.end()) {
+                    continue;
+                }
+
+                // Figure out the material we need to use in the viewport.
+                HdMaxRenderData::SubsetRenderData& subsetGeometry
+                    = primRenderData->shadedSubsets[i];
+                const bool instanced = primRenderData->shadedSubsets[i].IsInstanced();
+                MaxSDK::Graphics::BaseMaterialHandle materialToUse
+                    = primRenderData->ResolveViewportMaterial(
+                        subsetGeometry, displaySettings, instanced);
+                // Basic geometry. In this case, we already created the renderItem.
+                if (!instanced) {
+                    auto& renderItem
+                        = subsetGeometry.GetRenderItemDecorator(primRenderData->selected);
+                    renderItem.SetOffsetMatrix(MaxUsd::ToMax(primRenderData->transform));
+                    renderItem.SetCustomMaterial(materialToUse);
+                    targetRenderItemContainer.AddRenderItem(renderItem);
+                }
+                // Instanced geometry. For instances, we only created the instance render
+                // geometry. We only generate the render items now, as we need to display context
+                // and the node context.
+                else {
+                    primRenderData->instancer->GenerateInstances(
+                        subsetGeometry.geometry.get(),
+                        &materialToUse,
+                        targetRenderItemContainer,
+                        updateDisplayContext,
+                        nodeContext,
+                        false,
+                        i,
+                        view);
+                }
+            }
+            primRenderData->instancer->SetClean(false);
+        }
+
+        // Wireframe render item (only need one for the whole mesh, even if subsets exist).
+        if (needWireRepr) {
+            // Basic geometry
+            if (!primRenderData->wireframe.IsInstanced()) {
+                auto& wireRenderItem
+                    = primRenderData->wireframe.GetRenderItemDecorator(primRenderData->selected);
+                wireRenderItem.SetOffsetMatrix(MaxUsd::ToMax(primRenderData->transform));
+                wireRenderItem.SetCustomMaterial(
+                    nodeContext.GetRenderNode().GetWireframeMaterial());
+                targetRenderItemContainer.AddRenderItem(wireRenderItem);
+            }
+            // Instanced geometry
+            else {
+                primRenderData->instancer->GenerateInstances(
+                    primRenderData->wireframe.geometry.get(),
+                    nullptr,
+                    targetRenderItemContainer,
+                    updateDisplayContext,
+                    nodeContext,
+                    true,
+                    0,
+                    view);
+                primRenderData->instancer->SetClean(true);
+            }
+        }
+    }
+}
+
+void HdMaxEngine::SetSelection(
+    const std::unordered_map<pxr::SdfPath, pxr::VtIntArray, pxr::SdfPath::Hash>& newSelection) const
+{
+    if (!sceneDelegate || !renderDelegate) {
+        return;
+    }
+
+    auto selection = renderDelegate->GetSelection();
+    auto selectedPaths = selection->GetAllSelectedPrimPaths();
+
+    // Can we know for sure the selection hasn't changed?
+    const auto checkSelectionChanged = [&newSelection, &selection, &selectedPaths]() {
+        // Check new items in selection.
+        for (const auto& sel : newSelection) {
+            if (!selection->GetPrimSelectionState(
+                    pxr::HdSelection::HighlightModeSelect, sel.first)) {
+                return true;
+            }
+        }
+
+        for (const auto& selPath : selectedPaths) {
+            // Something removed from selection?
+            const auto it = newSelection.find(selPath);
+            if (it == newSelection.end()) {
+                return true;
+            }
+
+            // Not the same instances selected?
+            auto state
+                = selection->GetPrimSelectionState(pxr::HdSelection::HighlightModeSelect, selPath);
+            size_t curIdx = 0;
+            for (const auto& indexArray : state->instanceIndices) {
+                for (const auto index : indexArray) {
+                    if (it->second[curIdx++] != index) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    };
+
+    if (!checkSelectionChanged()) {
+        return;
+    }
+
+    // If we had a selection previously, we need to flag those rprims dirty for selection,
+    // as they may not be selected any more.
+    pxr::HdChangeTracker& changeTracker = sceneDelegate->GetRenderIndex().GetChangeTracker();
+    const auto&           renderIndex = sceneDelegate->GetRenderIndex();
+    for (const auto& path : selectedPaths) {
+        // Only care for rPrims, other prims have no selection display in vp (materials, skelroot,
+        // etc.)
+        if (!renderIndex.GetRprim(path)) {
+            continue;
+        }
+        if (selection->GetPrimSelectionState(pxr::HdSelection::HighlightModeSelect, path)) {
+            changeTracker.MarkRprimDirty(path, pxr::HdMaxMesh::DirtySelectionHighlight);
+        }
+    }
+
+    // Rebuild the new selection..
+    selection.reset(new pxr::HdSelection);
+    for (const auto& sel : newSelection) {
+        // Point instances.
+        if (!sel.second.empty()) {
+            for (const auto& instanceIdx : sel.second) {
+                sceneDelegate->PopulateSelection(
+                    pxr::HdSelection::HighlightModeSelect, sel.first, instanceIdx, selection);
+            }
+        }
+        // Prims.
+        else {
+            sceneDelegate->PopulateSelection(
+                pxr::HdSelection::HighlightModeSelect, sel.first, -1, selection);
+        }
+    }
+    renderDelegate->SetSelection(selection);
+
+    // Mark all selected paths dirty...
+    for (const auto& path : selection->GetAllSelectedPrimPaths()) {
+        // Only care for rPrims, other prims have no selection display in vp (materials, skelroot,
+        // etc.)
+        if (!renderIndex.GetRprim(path)) {
+            continue;
+        }
+        changeTracker.MarkRprimDirty(path, pxr::HdMaxMesh::DirtySelectionHighlight);
+    }
+}
+
+void HdMaxEngine::RenderToMeshes(
+    INode*                              node,
+    const pxr::UsdPrim&                 rootPrim,
+    const pxr::GfMatrix4d&              rootTransform,
+    std::vector<std::shared_ptr<Mesh>>& outputMeshes,
+    std::vector<Matrix3>&               meshTransforms,
+    const pxr::UsdTimeCode&             timeCode,
+    const pxr::TfTokenVector&           renderTags)
+{
+    // Raise a warning if no material is applied to the UsdStage object. The user may need to
+    // explicitly apply the UsdPreviewSurface materials.
+    if (!node->GetMtl()) {
+        IRenderMessageManager* pRenderMessageManager = GetRenderMessageManager();
+        const std::wstring     warningNoMtl
+            = std::wstring(L"Warning : No material applied to ") + node->GetName()
+            + std::wstring(
+                  L". If you want to use the UsdPreviewSurface materials from the USD Stage, use "
+                  L"the \"Assign "
+                  L"UsdPreviewSurface material\" command from the \"Rendering settings\" rollup.");
+
+        pRenderMessageManager->LogMessage(
+            IRenderMessageManager::kSource_ProductionRenderer,
+            IRenderMessageManager::kType_Warning,
+            0,
+            warningNoMtl.c_str());
+    }
+
+    outputMeshes.clear();
+    meshTransforms.clear();
+
+    UpdateRootPrim(rootPrim, node->GetMtl());
+    HydraRender(rootTransform, timeCode, renderTags, true);
+
+    std::vector<HdMaxRenderData*> renderData;
+    renderDelegate->GetVisibleRenderData(renderTags, renderData);
+
+    // Then, update a lists of all materials currently in use, and generate associated material Ids.
+    const auto materialCollection = renderDelegate->GetMaterialCollection();
+    UpdateMaterialIdsList(renderData, materialCollection);
+
+    pxr::TfHashSet<pxr::TfToken, pxr::TfToken::HashFunctor> unmappedPrimvars;
+    for (const auto& primRenderData : renderData) {
+        // Create a 3dsMax mesh for this USD prim's data.
+        auto primMesh = std::make_shared<Mesh>();
+
+        MaxUsd::MeshUtils::UsdRenderGeometry usdRenderGeom;
+        // VtArray have copy-on-write semantics, so these assignments are not copying the data.
+        usdRenderGeom.points = primRenderData->points;
+        usdRenderGeom.uvs = primRenderData->uvs;
+        usdRenderGeom.normals = primRenderData->normals;
+        usdRenderGeom.colors = primRenderData->colors;
+
+        // We are converting the geometry used in the viewport, to geometry usable for rendering.
+        // If any mapped data (uvs, normals, colors, etc.) cannot be shared, then we also needed to
+        // "unshare" the vertices themselves to satisfy nitrous (vertex buffers must all be the same
+        // size). When rendering, this is not great because the meshes dont appear "welded" and for
+        // some materials this is an issue (think displacement for example). So for vertices we must
+        // make sure to share again the vertices that were shared in the source geometry. For mapped
+        // data (primvar data) it does not matter.
+        usdRenderGeom.subsetTopoIndices.resize(primRenderData->shadedSubsets.size());
+        usdRenderGeom.subsetPrimvarIndices.resize(primRenderData->shadedSubsets.size());
+
+        // Did we "unshare" the vertices to satisfy Nitrous?
+        const bool unsharedPoints
+            = usdRenderGeom.points.size() != primRenderData->sourceTopology.GetNumPoints();
+
+        if (unsharedPoints) {
+            // If the points were unshared for Nitrous, we need to make sure to share them again.
+            // We don't keep the original vertex buffers around, to avoid using more memory, but we
+            // can simply use the index of one of the "unshared points". For example, the corner of
+            // a welded box is one vertex in the source data. For nitrous, because the normals and
+            // uvs of each face of that box can't be shared at that vertex, we split the corner into
+            // 3 vertices (A, B, C). Here, what we do is remap the indices pointing to B and C to A.
+            // So that all indices for that corner of the box point to A. This, obviously, will
+            // result in some unused vertices - these will be cleaned out as part of the conversion
+            // to the 3dsMax mesh.
+
+            // When we unshare vertices, the new indices are a natural sequence [0-N], so we can
+            // easily map render indices to scene indices by just looking at the scene indices.
+            const auto& renderIdxToSceneIdx = primRenderData->sourceTopology.GetFaceVertexIndices();
+
+            // Find the reverse mapping. scene -> render is a 1 - N mapping. For the reverse we just
+            // use the first index we find that "works".
+            std::vector<int> sceneIdxToRenderIdx;
+            constexpr int    uninitializedValue = -1;
+            sceneIdxToRenderIdx.resize(
+                primRenderData->sourceTopology.GetNumPoints(), uninitializedValue);
+
+            for (size_t i = 0; i < renderIdxToSceneIdx.size(); ++i) {
+                const int sceneFaceVtxId = renderIdxToSceneIdx[i];
+                // Use the first vertex we find.
+                if (sceneIdxToRenderIdx[sceneFaceVtxId] == uninitializedValue) {
+                    sceneIdxToRenderIdx[sceneFaceVtxId] = static_cast<int>(i);
+                }
+            }
+
+            for (int i = 0; i < primRenderData->shadedSubsets.size(); ++i) {
+                // Remap the topology indices.
+                auto& subset = primRenderData->shadedSubsets[i];
+                for (int j = 0; j < subset.indices.size(); ++j) {
+                    auto sceneIndex1 = renderIdxToSceneIdx[subset.indices[j][0]];
+                    auto sceneIndex2 = renderIdxToSceneIdx[subset.indices[j][1]];
+                    auto sceneIndex3 = renderIdxToSceneIdx[subset.indices[j][2]];
+
+                    usdRenderGeom.subsetTopoIndices[i].emplace_back(
+                        sceneIdxToRenderIdx[sceneIndex1],
+                        sceneIdxToRenderIdx[sceneIndex2],
+                        sceneIdxToRenderIdx[sceneIndex3]);
+                }
+                // Mapped data indices are kept as is.
+                usdRenderGeom.subsetPrimvarIndices[i] = subset.indices;
+            }
+        } else {
+            // Otherwise, we can use the indices as is for points & data.
+            for (int i = 0; i < primRenderData->shadedSubsets.size(); ++i) {
+                auto& subset = primRenderData->shadedSubsets[i];
+                usdRenderGeom.subsetTopoIndices[i] = subset.indices;
+                usdRenderGeom.subsetPrimvarIndices[i] = subset.indices;
+            }
+        }
+
+        // Figure out the material ids associated with each subset.
+        const auto materialCollection = renderDelegate->GetMaterialCollection();
+        for (const auto& subsetGeometry : primRenderData->shadedSubsets) {
+            int  matId = 0;
+            auto renderMaterial = subsetGeometry.materialData ? subsetGeometry.materialData->GetId()
+                                                              : pxr::SdfPath {};
+            auto it = materials.find(renderMaterial);
+            if (it != materials.end()) {
+                matId = it->second.first;
+            }
+            usdRenderGeom.materialIds.push_back(matId);
+        }
+
+        if (!ToRenderMesh(
+                usdRenderGeom,
+                *primMesh,
+                GetRenderDelegate()->GetPrimvarMappingOptions(),
+                unmappedPrimvars)) {
+            GetCOREInterface()->Log()->LogEntry(
+                SYSLOG_ERROR,
+                NO_DIALOG,
+                NULL,
+                _T("Failed to convert %s's geometry for rendering."),
+                primRenderData->rPrimPath.GetString());
+        }
+
+        // If instanced, use all the instance transforms, otherwise, just the transform defined on
+        // the prim.
+        auto transforms = primRenderData->instancer->GetTransforms();
+        if (transforms.empty()) {
+            Matrix3 primTransform = MaxUsd::ToMaxMatrix3(primRenderData->transform);
+            transforms.push_back(primTransform);
+        }
+
+        for (auto& transform : transforms) {
+            outputMeshes.push_back(primMesh);
+            meshTransforms.push_back(transform);
+        }
+    }
+
+    // If we have unmapped primvars (primvars that are in use by some material, but not mapped to
+    // any 3dsMax channel), the render result may not be as we would expect. Warn the user.
+    if (!unmappedPrimvars.empty()) {
+        IRenderMessageManager* pRenderMessageManager = GetRenderMessageManager();
+        std::wstring warningUnmapped = std::wstring(L"Warning : The Usd Stage ") + node->GetName()
+            + std::wstring(L", contains materials using primvars that are not mapped to any 3dsMax "
+                           L"map channel : ");
+
+        bool first = true;
+        for (const auto& pv : unmappedPrimvars) {
+            if (!first) {
+                warningUnmapped.append(L", ");
+            }
+            warningUnmapped.append(
+                std::wstring(MaxUsd::UsdStringToMaxString(pv.GetString()).data()));
+            first = false;
+        }
+        warningUnmapped.append(
+            L". Primvar/channel mappings can be set using the maxscript function "
+            L"\"SetPrimvarChannelMapping(...) available on the Stage object.\"");
+        pRenderMessageManager->LogMessage(
+            IRenderMessageManager::kSource_ProductionRenderer,
+            IRenderMessageManager::kType_Warning,
+            0,
+            warningUnmapped.c_str());
+    }
+}
+
+bool HdMaxEngine::UpdateRootPrim(const pxr::UsdPrim& rootPrim, Mtl* nodeMaterial)
+{
+    if (this->rootPrim == rootPrim) {
+        return false;
+    }
+
+    // On first initialization or whenever we are changing to an entirely new stage, setup
+    // a new render index (and associated task controller). Also clear anything cached in our
+    // render delegate - indeed that data is no longer important.
+    if ((!this->rootPrim.IsValid() || !rootPrim.IsValid())
+        || (this->rootPrim.GetStage() != rootPrim.GetStage())) {
+        renderDelegate->Clear();
+
+        // Release in order considering dependencies.
+        renderIndex.release();
+        sceneDelegate.release();
+
+        renderIndex.reset(pxr::HdRenderIndex::New(renderDelegate.get(), {}));
+        taskController = std::make_unique<pxr::HdMaxTaskController>(
+            renderIndex.get(),
+            pxr::SdfPath::AbsoluteRootPath().AppendChild(pxr::TfToken("hydraMaxTaskController")));
+    }
+
+    // If the root primitive to render from changes, we need to create a new scene delegate for it.
+    this->sceneDelegate = std::make_unique<pxr::UsdImagingDelegate>(
+        renderIndex.get(), pxr::SdfPath::AbsoluteRootPath());
+    sceneDelegate->Populate(rootPrim, {});
+
+    this->rootPrim = rootPrim;
+
+    if (nodeMaterial) {
+        // If the Root prim has changed, initialize the material collection - needed if we are
+        // loading the USD Stage from a .max file - to avoid rebuilding new materials. Instead
+        // this reconnects the materials to the USD source...
+        InitializeMaterialCollection(rootPrim.GetStage(), nodeMaterial);
+    }
+
+    return true;
+}
+
+size_t HdMaxEngine::GetNumRenderPrim(const pxr::TfTokenVector& renderTags) const
+{
+    // The render primitives are initialized when the scene delegate is created, depending on the
+    // situation, they may not be filled up with actual geometry when we get here, but the count is
+    // already correct.
+    size_t numRenderPrim = 0;
+
+    std::vector<HdMaxRenderData*> renderData;
+    renderDelegate->GetVisibleRenderData(renderTags, renderData);
+    for (const auto& data : renderData) {
+        if (!data->visible || !data->renderTagActive) {
+            continue;
+        }
+
+        numRenderPrim += std::max(size_t(1), data->instancer->GetNumInstances());
+    }
+    return numRenderPrim;
+}
+
+void HdMaxEngine::PrepareBatch(
+    const pxr::UsdTimeCode&   timeCode,
+    const pxr::TfTokenVector& renderTags)
+{
+    TRACE_FUNCTION();
+    if (taskController->GetRenderTags() != renderTags) {
+        consolidator->Reset();
+    }
+    taskController->SetRenderTags(renderTags);
+    sceneDelegate->SetTime(timeCode);
+    sceneDelegate->ApplyPendingUpdates();
+}
+
+void HdMaxEngine::InitializeMaterialCollection(pxr::UsdStageWeakPtr stage, Mtl* material)
+{
+    // Look at the currently set material on the node, if it is a material we built, expect a
+    // MultiMtl* carrying MaxUsdPreviewSurfaceMaterials.
+    const auto multiMtl = dynamic_cast<MultiMtl*>(material);
+    if (!multiMtl) {
+        // Nothing to do - the material is not one that we built.
+        return;
+    }
+
+    const auto materialCollection = GetRenderDelegate()->GetMaterialCollection();
+
+    // Go through the sub-materials, looking for 3dsMax UsdPreviewSurface materials that we might be
+    // able to connect to the Stage materials.
+    for (int i = 0; i < multiMtl->NumSubMtls(); ++i) {
+        const auto subMaterial = multiMtl->GetSubMtl(i);
+        if (!subMaterial
+            || subMaterial->ClassID()
+                != HdMaxMaterialCollection::MaxUsdPreviewSurfaceMaterialClassID) {
+            continue;
+        }
+
+        // When we build materials for the stage, we assign the source material prim path as name.
+        // Can we find a material prim on the current stage using this path?
+        const auto materialPrimPath
+            = pxr::SdfPath(MaxUsd::MaxStringToUsdString(subMaterial->GetName()));
+        auto materialPrim = stage->GetPrimAtPath(materialPrimPath);
+        if (!materialPrim.IsValid() || !materialPrim.IsA<pxr::UsdShadeMaterial>()) {
+            continue;
+        }
+
+        // Looks good... we register the existing material in the collection. This material will now
+        // be updated if its USD source material changes.
+        materialCollection->RegisterMaxMaterial(materialPrimPath, subMaterial);
+
+        // Also look at any bitmaps this material is using, use the same process to match bitmaps
+        // with source USD texture nodes. If we find a match, add the bitmap to the bitmap cache we
+        // maintain.
+        for (int i = 0; i < subMaterial->NumSubTexmaps(); ++i) {
+            const auto texMap = subMaterial->GetSubTexmap(i);
+            const auto bitmapTex = dynamic_cast<BitmapTex*>(texMap);
+
+            if (!bitmapTex) {
+                continue;
+            }
+
+            // Is this from a texture prim in the stage?
+            auto texturePrimPath = pxr::SdfPath(MaxUsd::MaxStringToUsdString(bitmapTex->GetName()));
+            auto texturePrim = stage->GetPrimAtPath(texturePrimPath);
+
+            if (!texturePrim.IsValid() || !texturePrim.IsA<pxr::UsdShadeShader>()) {
+                continue;
+            }
+            materialCollection->RegisterMaxBitmap(bitmapTex);
+        }
+    }
+}
+
+pxr::HdChangeTracker& HdMaxEngine::GetChangeTracker()
+{
+    if (!renderIndex) {
+        static pxr::HdChangeTracker emptyTracker;
+        return emptyTracker;
+    }
+    return renderIndex->GetChangeTracker();
+}
+
+void HdMaxEngine::RenderBatch()
+{
+    TRACE_FUNCTION();
+
+    pxr::VtValue renderTags({});
+    engine.SetTaskContextData(pxr::HdTokens->renderTags, renderTags);
+
+    const pxr::HdReprSelector reprSelector = pxr::HdReprSelector(pxr::HdReprTokens->smoothHull);
+    const pxr::TfToken        collectionName = pxr::HdTokens->geometry;
+
+    renderCollection = pxr::HdRprimCollection(collectionName, reprSelector);
+    renderCollection.SetRootPath(pxr::SdfPath::AbsoluteRootPath());
+
+    taskController->SetCollection(renderCollection);
+    auto renderingTasks = taskController->GetRenderingTasks();
+
+    engine.Execute(renderIndex.get(), &renderingTasks);
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxEngine.h b/src/RenderDelegate/HdMaxEngine.h
new file mode 100644
index 0000000..f1e9d7f
--- /dev/null
+++ b/src/RenderDelegate/HdMaxEngine.h
@@ -0,0 +1,247 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "HdMaxConsolidator.h"
+#include "Imaging/HdMaxRenderDelegate.h"
+#include "Imaging/HdMaxTaskController.h"
+#include "RenderDelegateAPI.h"
+
+#include <MaxUsd/Utilities/MaterialRef.h>
+#include <MaxUsd/Utilities/ProgressReporter.h>
+
+#include <pxr/imaging/hd/engine.h>
+#include <pxr/imaging/hd/rprimCollection.h>
+#include <pxr/usdImaging/usdImaging/delegate.h>
+
+#include <stdmat.h>
+
+class PrimvarMappingOptions;
+
+class RenderDelegateAPI HdMaxEngine final
+{
+public:
+    HdMaxEngine();
+    ~HdMaxEngine();
+
+    /**
+     * \brief "Renders" from the given prim root, as Nitrous RenderItems.
+     * \param rootPrim The prim to render from.
+     * \param rootTransform The transform to apply at the root when rendering.
+     * \param targetRenderItemContainer A container for the produced render items.
+     * \param timeCode The time code at which to render the USD content.
+     * \param updateDisplayContext Update display context (required to generate instance render items).
+     * \param nodeContext Node context (required to generate instance render items).
+     * \param reprs Required representations, currently support wireframe ("wire") and shaded ("smootHull")
+     * \param renderTags Render tags to be used in the hydra render.
+     * \param multiMat A multiMaterial meant to hold all of the stage's material, will be filled by the render call.
+     * \param consolidationConfig Consolidation configuration.
+     * \param view View information, if specified, it is used for frustum culling and configuring Zbiases, for example.
+     * \param buildOfflineRenderMaterial If true, build the 3dsMax materials from the Stage's UsdPreviewSurface materials,
+     * and the multimaterial carrying them, which can be used for offline rendering.
+     * \param progressReporter Provides means to report progress on lengthy operations triggered from the render,
+     * typically hooked up to UI.
+     */
+    void Render(
+        const pxr::UsdPrim&                           rootPrim,
+        const pxr::GfMatrix4d&                        rootTransform,
+        MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer,
+        const pxr::UsdTimeCode&                       timeCode,
+        const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+        MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+        const pxr::TfTokenVector&                     reprs,
+        const pxr::TfTokenVector&                     renderTag,
+        MultiMtl*                                     multiMat,
+        const HdMaxConsolidator::Config& consolidationConfig = HdMaxConsolidator::Config {},
+        ViewExp*                         view = nullptr,
+        bool                             buildOfflineRenderMaterial = false,
+        const MaxUsd::ProgressReporter&  progressReporter = {});
+
+    /**
+     * \brief Sets the current USD selection (so that it can be properly drawn). This will populate the
+     * hydra selection held by the render delegate with these paths, and all their children.
+     * \param paths The new selection. In case of point instances, the prim path is the instancer's path, and
+     * the int array represent the instance indices.
+     */
+    void SetSelection(const std::unordered_map<pxr::SdfPath, pxr::VtIntArray, pxr::SdfPath::Hash>&
+                          newSelection) const;
+
+    /**
+     * \brief Renders the USD stage to 3dsMax TriMeshes (suitable for rendering by any renderer).
+     * \param node The node from which the UsdStage is being rendered.
+     * \param rootPrim The prim to render from.
+     * \param rootTransform The transform to apply at the root when rendering.
+     * \param outputMeshes Filled with the generated meshes.
+     * \param meshTransforms The mesh transforms.
+     * \param timeCode The UsdTimeCode at which to render.
+     * \param renderTags The render tags (purposes) to use.
+     */
+    void RenderToMeshes(
+        INode*                              node,
+        const pxr::UsdPrim&                 rootPrim,
+        const pxr::GfMatrix4d&              rootTransform,
+        std::vector<std::shared_ptr<Mesh>>& outputMeshes,
+        std::vector<Matrix3>&               meshTransforms,
+        const pxr::UsdTimeCode&             timeCode,
+        const pxr::TfTokenVector&           renderTags);
+
+    /**
+     * \brief Updates the root primitive to render from and initialize materials. If the given root prim is different from the
+     * currently set root prim, a new scene delegate is created for the new root.
+     * \param rootPrim The prim to use as root for the render.
+     * \param nodeMaterial If the root prim changes, we try to connect any existing 3dsMax material
+     * bound to the node, to usd materials in the source data.
+     * \return True if the root prim was changed, false otherwise.
+     */
+    bool UpdateRootPrim(const pxr::UsdPrim& rootPrim, Mtl* nodeMaterial = nullptr);
+
+    /**
+     * \brief Returns the number of prims that actually get rendered.
+     * \param renderTags Render tags to consider.
+     * \return The number of prims that will be rendered.
+     */
+    size_t GetNumRenderPrim(const pxr::TfTokenVector& renderTags) const;
+
+    /**
+     * \brief Returns the engine's render delegate.
+     * \return The render delegate used by the engine.
+     */
+    const std::shared_ptr<pxr::HdMaxRenderDelegate> GetRenderDelegate() const
+    {
+        return renderDelegate;
+    }
+
+    /**
+     * \brief Initializes the material collection from a 3dsMax material. Typically, this is called
+     * with the material currently on the node hosting the USD Stage Object. The method will check
+     * if the material passed is a MultiMtl and if it carries any UsdPreviewSurface materials  that
+     * can be linked to the Stage materials (looking at the material type and name). When a 3dsMax
+     * scene with a UsdStage is loaded from disk, this is the function reconnecting the saved 3dsMax
+     * materials to the stage materials - so that if materials change again in the stage, the 3dsMax
+     * materials are updated.
+     * \param stage The USD Stage we are working with.
+     * \param material The 3dsMax material to initialize the collection from.
+     */
+    void InitializeMaterialCollection(pxr::UsdStageWeakPtr stage, Mtl* material);
+
+    /**
+     * \brief Returns the current change tracker (internally held by the render index). Callers should avoid
+     * holding on to references to the change tracker in between render calls, as it not guaranteed
+     * to stay valid. For example, if the stage being rendered is changed, a new RenderIndex is
+     * created, and a new change tracker along with it.
+     * \return The change tracker.
+     */
+    pxr::HdChangeTracker& GetChangeTracker();
+
+    /**
+     * \brief Performs a hydra render.
+     * \param rootTransform The root transform for the render.
+     * \param timeCode The timeCode at which we are rendering.
+     * \param renderTags Enabled render tags.
+     * \param loadAllUnmapped primvars If true, all primvars mapped to 3dsMax channels are loaded from hydra,
+     * regardless of usage in materials.
+     */
+    void HydraRender(
+        const pxr::GfMatrix4d&    rootTransform,
+        const pxr::UsdTimeCode&   timeCode,
+        const pxr::TfTokenVector& renderTags,
+        bool                      loadAllUnmappedPrimvars = false);
+
+private:
+    /**
+     * \brief Update the scene delegate to prepare it for rendering.
+     * \param timeCode TimeCode at which the render will take place.
+     * \param renderTags Render tags to be used by the render.
+     */
+    void PrepareBatch(const pxr::UsdTimeCode& timeCode, const pxr::TfTokenVector& renderTags);
+
+    /**
+     * \brief Effectively do the processing of the scene, updating the associated render delegate.
+     * \warning PrepareBatch must be called first.
+     */
+    void RenderBatch();
+
+    /**
+     * \brief Updates the list of UsdPreviewSurface materials, from the given render data.
+     * The list is maintained for the purpose of generating the materials Ids which eventually need
+     * to be applied to different parts of the mesh that we end up using for offline rendering (for
+     * renderers not supporting USD directly)
+     * \param renderData The render data to update the material from.
+     * \param collection The material collection in use for the object, just used to get the display color material
+     * fallback if required.
+     */
+    void UpdateMaterialIdsList(
+        const std::vector<HdMaxRenderData*>&     renderData,
+        std::shared_ptr<HdMaxMaterialCollection> collection);
+
+    /**
+     * \brief Updates the 3dsMax multi-material holding all of the converted USD materials, from the given render data.
+     * This is typically called when rendering. The multi-material is typically applied to the Node
+     * owning the USD Stage, so it can be rendered.
+     * \param multiMat The multi-material we are updating.
+     */
+    void UpdateMultiMaterial(MultiMtl* multiMat) const;
+
+    /**
+     * \brief Attempts consolidation of the given render data.
+     * \param renderData The render data we are hoping to consolidate.
+     * \param lastTimeCode The last time code we rendered, used to find a pre-existing consolidation
+     * we might want to update.
+     * \param timeCode The current time.
+     * \param config Configuration parameters for the consolidation.
+     * \param wireMaterial The wireframe material we should use for consolidated wireframe geometry.
+     * \return The result of the consolidation, or nullptr.
+     */
+    HdMaxConsolidator::OutputPtr Consolidate(
+        const std::vector<HdMaxRenderData*>&        renderData,
+        const pxr::UsdTimeCode&                     lastTimeCode,
+        const pxr::UsdTimeCode&                     timeCode,
+        const HdMaxConsolidator::Config&            config,
+        const MaxSDK::Graphics::BaseMaterialHandle& wireMaterial);
+
+    /// Create a sceneDelegate out of a stage.
+    std::unique_ptr<pxr::UsdImagingDelegate> CreateSceneDelegate(const pxr::UsdPrim& rootPrim);
+    /// The hydra engine used for rendering.
+    pxr::HdEngine engine;
+    /// The Nitrous render delegate.
+    std::shared_ptr<pxr::HdMaxRenderDelegate> renderDelegate;
+    /// The USD scene delegate, producing hydra data from USD.
+    std::unique_ptr<pxr::UsdImagingDelegate> sceneDelegate;
+    /// The render index. This is essentially a flattened representation of the scene graph. It is
+    /// tied to our scene delegate and render delegate.
+    std::unique_ptr<pxr::HdRenderIndex> renderIndex;
+    /// The collection of primitives to be rendered.
+    pxr::HdRprimCollection renderCollection;
+    /// Task controller, generates the rendering tasks.
+    std::unique_ptr<pxr::HdMaxTaskController> taskController;
+    /// The root prim we render from.
+    pxr::UsdPrim rootPrim;
+    /// Max materials that were converted at the last Render(). The empty path maps to the
+    /// displayColor material.
+    pxr::TfHashMap<
+        pxr::SdfPath,
+        std::pair<int, std::shared_ptr<MaxUsd::MaterialRef>>,
+        pxr::SdfPath::Hash>
+        materials;
+    /// Provides the capability to consolidate USD prim render data - while keeping track of where
+    /// each prim's
+    ///	mesh data ends up so it can potentially be updated.
+    std::unique_ptr<HdMaxConsolidator> consolidator;
+    // Control variables for static/dynamic consolidation.
+    bool                                               staticDelayStarted = false;
+    std::chrono::time_point<std::chrono::system_clock> staticDelayStartTime;
+    pxr::UsdTimeCode                                   lastVpRenderTime;
+};
diff --git a/src/RenderDelegate/HdMaxInstanceGen.cpp b/src/RenderDelegate/HdMaxInstanceGen.cpp
new file mode 100644
index 0000000..82a452a
--- /dev/null
+++ b/src/RenderDelegate/HdMaxInstanceGen.cpp
@@ -0,0 +1,293 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxInstanceGen.h"
+
+#include "HdMaxDisplayPreferences.h"
+#include "MaxRenderGeometryFacade.h"
+#include "SelectionRenderItem.h"
+#include "resource.h"
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <Maxusd/Utilities/TranslationUtils.h>
+
+#include <Graphics/HLSLMaterialHandle.h>
+#include <Graphics/StandardMaterialHandle.h>
+
+#include <dllutilities.h>
+
+using namespace MaxRestrictedSDKSupport::Graphics::ViewportInstancing;
+
+namespace {
+std::once_flag                       initSelectionMat;
+MaxSDK::Graphics::HLSLMaterialHandle instanceSelectMaterial;
+MaxSDK::Graphics::HLSLMaterialHandle instanceSelectWireMaterial;
+} // namespace
+
+HdMaxInstanceGen::HdMaxInstanceGen()
+{
+    // Initialize the selection effects, when the first usd render item is created.
+    std::call_once(initSelectionMat, [this] {
+        instanceSelectMaterial.InitializeWithResource(
+            IDR_PRIM_SELECTION_SHADER, MaxSDK::GetHInstance(), L"SHADER");
+        instanceSelectMaterial.SetActiveTechniqueName(L"Shaded_Instanced");
+        instanceSelectWireMaterial.InitializeWithResource(
+            IDR_PRIM_SELECTION_SHADER, MaxSDK::GetHInstance(), L"SHADER");
+        instanceSelectWireMaterial.SetActiveTechniqueName(L"Wire_Instanced");
+    });
+}
+
+void HdMaxInstanceGen::SetClean(bool wire)
+{
+    if (wire) {
+        wireState = DirtyState::Clean;
+        wireSelectionState = DirtyState::Clean;
+        return;
+    }
+    shadedState = DirtyState::Clean;
+    shadedSelectionState = DirtyState::Clean;
+}
+
+const std::vector<Matrix3>& HdMaxInstanceGen::GetTransforms() const { return transforms; }
+
+void HdMaxInstanceGen::RequestUpdate(
+    bool                        recreateInstances,
+    const pxr::VtMatrix4dArray& usdTransforms)
+{
+    transforms.clear();
+    transforms.reserve(usdTransforms.size());
+    for (auto& tm : usdTransforms) {
+        transforms.push_back(MaxUsd::ToMaxMatrix3(tm));
+    }
+
+    auto flag = [this](const DirtyState& state) {
+        shadedState = std::max(state, shadedState);
+        wireState = std::max(state, wireState);
+        ;
+    };
+
+    // Typically, we need to regenerate the instances fully if things like the topology, the
+    // materials, or the number of instances have changed.
+    if (recreateInstances) {
+        shadedData.numInstances = transforms.size();
+        SetInstanceDataMatrices(shadedData, transforms);
+        wireData.numInstances = transforms.size();
+        SetInstanceDataMatrices(wireData, transforms);
+        flag(DirtyState::NeedRecreate);
+    }
+    // Otherwise just update the transforms.
+    else {
+        flag(DirtyState::NeedUpdate);
+        if (shadedState != DirtyState::NeedRecreate) {
+            ClearInstanceData(shadedData);
+        }
+        if (wireState != DirtyState::NeedRecreate) {
+            ClearInstanceData(wireData);
+        }
+        SetInstanceDataMatrices(shadedData, transforms);
+        SetInstanceDataMatrices(wireData, transforms);
+
+        shadedData.numInstances = transforms.size();
+        wireData.numInstances = transforms.size();
+    }
+
+    RequestSelectionDisplayUpdate(recreateInstances);
+
+    shadedData.bTransformationsAreInWorldSpace = false;
+    wireData.bTransformationsAreInWorldSpace = false;
+}
+
+void HdMaxInstanceGen::RequestSelectionDisplayUpdate(bool recreate)
+{
+    auto flag = [this](const DirtyState& state) {
+        shadedSelectionState = std::max(state, shadedSelectionState);
+        wireSelectionState = std::max(state, wireSelectionState);
+        ;
+    };
+
+    // Need to recreate when, for example, selection changes. A change in the number of instances
+    // requires an full recreation. If only the transforms change, we can simply update, less
+    // expensive.
+    flag(recreate ? DirtyState::NeedRecreate : DirtyState::NeedUpdate);
+
+    selectedTransforms.clear();
+    for (int i = 0; i < selection.size(); ++i) {
+        if (selection[i]) {
+            selectedTransforms.push_back(transforms[i]);
+        }
+    }
+    shadedSelectionData.numInstances = selectedTransforms.size();
+    SetInstanceDataMatrices(shadedSelectionData, selectedTransforms);
+    wireSelectionData.numInstances = selectedTransforms.size();
+    SetInstanceDataMatrices(wireSelectionData, selectedTransforms);
+}
+
+void HdMaxInstanceGen::GenerateInstances(
+    MaxRenderGeometryFacade*                      geom,
+    MaxSDK::Graphics::BaseMaterialHandle*         material,
+    MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer,
+    const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+    MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+    bool                                          wireframe,
+    int                                           subset,
+    ViewExp*                                      viewExp)
+{
+    if (!geom || !geom->GetInstanceRenderGeometry()) {
+        return;
+    }
+
+    if (!wireframe && (subset < 0 && subset >= cachedShaded.size())) {
+        DbgAssert(0 && _T("Invalid subset index"));
+        return;
+    }
+
+    // Update and generate instances.
+
+    // There is a very hard to reproduce issue in nitrous where an instance geometry object can get
+    // corrupted when calling creating the instancing data multiple times on the same
+    // InstanceGeometryObject. Recreating a new object works around this issue. It is definitely a
+    // suspicious hack.
+    const auto state = wireframe ? wireState : shadedState;
+    if (state == DirtyState::NeedRecreate) {
+        geom->RebuildInstanceGeom(false);
+    }
+
+    auto& data = wireframe ? wireData : shadedData;
+    auto& selectionData = wireframe ? wireSelectionData : shadedSelectionData;
+
+    // The given material can be null (in wireframe mode, this will let the system decide, and set
+    // the correct wireframe material)
+    data.numViewportMaterials = material ? 1 : 0;
+    data.pViewportMaterials = material;
+
+    selectionData.numViewportMaterials = 1;
+    const auto selectionMaterial
+        = wireframe ? &instanceSelectWireMaterial : &instanceSelectMaterial;
+    const auto& selColor = HdMaxDisplayPreferences::GetInstance().GetSelectionColor();
+    selectionMaterial->SetFloat4Parameter(
+        L"LineColor", Point4(selColor.r, selColor.g, selColor.b, selColor.a));
+
+    // Configure the ZBias. This is so that our selection wireframe displays on top of the geometry.
+    if (viewExp) {
+        auto bias = SelectionRenderItem::GetSelectionZBias(viewExp, wireframe);
+        selectionMaterial->SetFloatParameter(L"ZBias", bias);
+    }
+
+    selectionData.pViewportMaterials = selectionMaterial;
+
+    MaxSDK::Graphics::RenderItemHandleArray* cachedItems;
+    MaxSDK::Graphics::RenderItemHandleArray* cachedSelectionItems;
+    if (wireframe) {
+        cachedItems = &cachedWire;
+        cachedSelectionItems = &cachedSelectionWire;
+    } else {
+        cachedItems = &cachedShaded[subset];
+        cachedSelectionItems = &cachedSelectionShaded[subset];
+    }
+
+    auto createOrUpdate = [this](
+                              const DirtyState&                        state,
+                              InstanceDisplayGeometry*                 geom,
+                              const InstanceData&                      data,
+                              MaxSDK::Graphics::RenderItemHandleArray* cached) {
+        switch (state) {
+        case DirtyState::NeedRecreate: {
+            CreateInstanceData(geom, data);
+            cached->ClearAllRenderItems();
+            break;
+        }
+        case DirtyState::NeedUpdate: {
+            UpdateInstanceData(geom, data);
+            cached->ClearAllRenderItems();
+            break;
+        }
+        case DirtyState::Clean:
+        default:;
+        }
+    };
+
+    // The instance geometry render items :
+
+    const auto instanceGeom = geom->GetInstanceRenderGeometry();
+    createOrUpdate(state, instanceGeom, data, cachedItems);
+
+    // If we still have cached render items at this point, it means nothing has changed, and we can
+    // use the render items we already have.
+    if (cachedItems->GetNumberOfRenderItems() == 0) {
+        instanceGeom->GenerateInstances(wireframe, updateDisplayContext, nodeContext, *cachedItems);
+    }
+    targetRenderItemContainer.AddRenderItems(*cachedItems);
+
+    // Update and generate any required selection display instance render items.
+    if (selectionData.numInstances) {
+        // Even if the selection itself didnt change, we may need to update the selection render
+        // items, for example if the geometry has changed.
+        const auto effectiveSelectionState
+            = std::max(state, wireframe ? wireSelectionState : shadedSelectionState);
+        if (effectiveSelectionState == DirtyState::NeedRecreate) {
+            geom->RebuildInstanceGeom(true);
+        }
+        const auto instanceSelectGeom = geom->GetInstanceSelectionRenderGeometry();
+        createOrUpdate(
+            effectiveSelectionState, instanceSelectGeom, selectionData, cachedSelectionItems);
+        if (cachedSelectionItems->GetNumberOfRenderItems() == 0) {
+            instanceSelectGeom->GenerateInstances(
+                wireframe, updateDisplayContext, nodeContext, *cachedSelectionItems);
+        }
+        targetRenderItemContainer.AddRenderItems(*cachedSelectionItems);
+    }
+}
+
+void HdMaxInstanceGen::Select(int instanceIdx)
+{
+    const bool inBounds = instanceIdx >= 0 && instanceIdx < selection.size();
+    DbgAssert(inBounds);
+    if (!inBounds) {
+        return;
+    }
+    selection[instanceIdx] = true;
+}
+
+void HdMaxInstanceGen::ResetSelection()
+{
+    selection.resize(GetNumInstances());
+    std::fill(selection.begin(), selection.end(), false);
+}
+
+const std::vector<bool>& HdMaxInstanceGen::GetSelection() { return selection; }
+
+void HdMaxInstanceGen::SetSubsetCount(size_t subsetCount)
+{
+    cachedShaded.resize(subsetCount);
+    cachedSelectionShaded.resize(subsetCount);
+}
+
+size_t HdMaxInstanceGen::GetSubsetCount() const { return cachedShaded.size(); }
+
+const pxr::GfRange3d HdMaxInstanceGen::ComputeSelectionBoundingBox(pxr::GfRange3d& extent)
+{
+    pxr::GfRange3d totalExtent;
+    if (extent.IsEmpty()) {
+        return totalExtent;
+    }
+
+    // Convert selectedTransforms to pxr::VtMatrix4dArray
+    pxr::VtMatrix4dArray pxrSelectedTransforms;
+    for (const auto& selectedTransform : selectedTransforms) {
+        pxrSelectedTransforms.push_back(MaxUsd::ToUsd(selectedTransform));
+    }
+
+    return MaxUsd::ComputeTotalExtent(extent, pxrSelectedTransforms);
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxInstanceGen.h b/src/RenderDelegate/HdMaxInstanceGen.h
new file mode 100644
index 0000000..b8eb1b1
--- /dev/null
+++ b/src/RenderDelegate/HdMaxInstanceGen.h
@@ -0,0 +1,175 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+// For instancing. Instancing SDK changed in 2023.
+#include "RenderDelegateAPI.h"
+
+#include <MaxUsd/Utilities/MaxRestrictedSupportUtils.h>
+
+#include <Graphics/RenderItemHandleArray.h>
+
+class MaxRenderGeometryFacade;
+class HdMaxDisplaySettings;
+
+/// A class responsible for updating and generating the nitrous instance
+/// render items for a given geometry. It handles both shaded and wireframe geometry
+/// individually. Typically, RequestUpdate(...) is called from a hydra thread, it sets up the
+/// instance data - and later, GenerateInstances(...) is called from the main
+/// thread, from the Max viewport render loop.
+class RenderDelegateAPI HdMaxInstanceGen
+{
+public:
+    /// Depending on changes that happen over time, instances may need
+    /// to be recreated completely, or just updated.
+    enum class DirtyState
+    {
+        Clean,
+        NeedUpdate,
+        NeedRecreate
+    };
+
+    /**
+     * \brief Constructor
+     */
+    HdMaxInstanceGen();
+
+    /**
+     * \brief Sets the sync state of the generator to "Clean"
+     * \param wire True if we are setting the state for the wireframe instances, false otherwise.
+     */
+    void SetClean(bool wire);
+
+    /**
+     * \brief Returns the number of instances.
+     * \return The number of instances.
+     */
+    size_t GetNumInstances() const { return transforms.size(); };
+
+    /**
+     * \brief Returns the transforms of the instances.
+     * \return The transforms of the instances.
+     */
+    const std::vector<Matrix3>& GetTransforms() const;
+
+    /**
+     * \brief Request that instances be updated. This can be called from a hydra thread.
+     * \param recreateInstances True if the instances need to be fully rebuilt, that is the case
+     * if for example the topology of the mesh being instanced has changed, or the number of
+     * instances.
+     * \param transforms The new transforms of the instances.
+     */
+    void RequestUpdate(bool recreateInstances, const pxr::VtMatrix4dArray& transforms);
+
+    /**
+     * \brief Request that the selection display, i.e. the instanced render items that we use to show selected
+     * instances, be updated. Instance selection display is basically drawing a subset of the
+     * instances, the selected ones, in a different way.
+     * \param recreate If true, selection display instances are completely recreated. Typically, we need to
+     * regenerate the instances fully if things like the topology, the materials, or the number of
+     * instances have changed.
+     */
+    void RequestSelectionDisplayUpdate(bool recreate);
+
+    /**
+     * \brief Creates or updates the instance data as needed, and generate the instance render items.
+     * \param instanceGeometry Render geometry facade wrapping the instances' geometry (selection display
+     * instances as well).
+     * \param material The material to be used for the instances. Can be left empty.
+     * \param targetRenderItemContainer The container to which to add the generated render items.
+     * \param updateDisplayContext The update display context.
+     * \param nodeContext The node context.
+     * \param wireframe Whether we are generating wireframe instance render items, or shaded ones.
+     * \param subset The subset we are generating the instances for - a mesh can have multiple, associated
+     * to instanced render items (1 material maximum per render item). The instance generator will
+     * keep a cache of instance render items internally.
+     * \param viewExp View information used to configure Zbiases for selection.
+     */
+    void GenerateInstances(
+        MaxRenderGeometryFacade*                      instanceGeometry,
+        MaxSDK::Graphics::BaseMaterialHandle*         material,
+        MaxSDK::Graphics::IRenderItemContainer&       targetRenderItemContainer,
+        const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
+        MaxSDK::Graphics::UpdateNodeContext&          nodeContext,
+        bool                                          wireframe,
+        int                                           subset,
+        ViewExp*                                      viewExp);
+
+    /**
+     * \brief Mark an instance as selected so that the render items for selection display are generated.
+     * \param instanceIdx The index of the instance that should be marked selected.
+     */
+    void Select(int instanceIdx);
+
+    /**
+     * \brief Clear the selection of instances.
+     */
+    void ResetSelection();
+
+    /**
+     * \brief Returns the selection status of instances. A vector of booleans, true if an instance at the
+     * corresponding index is selected, false otherwise.
+     * \return Selection status of held instances.
+     */
+    const std::vector<bool>& GetSelection();
+
+    /**
+     * Sets the number of geom subsets that will be instanced.
+     * @param subsetCount The new number of subsets.
+     */
+    void SetSubsetCount(size_t subsetCount);
+
+    /**
+     * Gets the number of geom subsets being instanced.
+     * @return The number of subsets.
+     */
+    size_t GetSubsetCount() const;
+
+    /**
+     * \brief Returns computed bounding box of selected instances.
+     * \param extent The extent of the selected instances.
+     * \return Computed bounding box of selected instances.
+     */
+    const pxr::GfRange3d ComputeSelectionBoundingBox(pxr::GfRange3d& extent);
+
+private:
+    // All the instance transforms, empty if the geometry is not instanced. This vector will back
+    // the pointer given to the InstanceData.
+    std::vector<Matrix3> transforms;
+    std::vector<Matrix3> selectedTransforms;
+    std::vector<bool>    selection;
+
+    // Instancing data (used to create the instance vertex buffer).
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceData shadedData;
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceData shadedSelectionData;
+    // Instancing data for the wireframe render items.
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceData wireData;
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceData wireSelectionData;
+
+    // The state of the instance data, i.e. whether it needs recreation, update, etc.
+    // Shaded, wireframe and selection display instances need to be managed independently
+    // so we need a state for each.
+    DirtyState shadedState = DirtyState::Clean;
+    DirtyState shadedSelectionState = DirtyState::Clean;
+    DirtyState wireState = DirtyState::Clean;
+    DirtyState wireSelectionState = DirtyState::Clean;
+
+    // Cached render items. We get one render item per subset. And one for wireframe.
+    std::vector<MaxSDK::Graphics::RenderItemHandleArray> cachedShaded;
+    MaxSDK::Graphics::RenderItemHandleArray              cachedWire;
+    // Also cache the instance render items used for selection display.
+    std::vector<MaxSDK::Graphics::RenderItemHandleArray> cachedSelectionShaded;
+    MaxSDK::Graphics::RenderItemHandleArray              cachedSelectionWire;
+};
diff --git a/src/RenderDelegate/HdMaxMaterialCollection.cpp b/src/RenderDelegate/HdMaxMaterialCollection.cpp
new file mode 100644
index 0000000..07fd6a0
--- /dev/null
+++ b/src/RenderDelegate/HdMaxMaterialCollection.cpp
@@ -0,0 +1,810 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "HdMaxMaterialCollection.h"
+
+#include "DLLEntry.h"
+#include "HdMaxColorMaterial.h"
+#include "resource.h"
+
+#include <MaxUsd/MaxTokens.h>
+#include <MaxUsd/Utilities/Logging.h>
+#include <MaxUsd/Utilities/MaterialUtils.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <plugapi.h>
+
+#ifdef IS_MAX2025_OR_GREATER
+#include <Geom/trig.h>
+#else
+#include <trig.h>
+#endif
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/imaging/hd/material.h>
+#include <pxr/imaging/hd/mesh.h>
+#include <pxr/imaging/hd/meshUtil.h>
+#include <pxr/imaging/hd/smoothNormals.h>
+#include <pxr/imaging/hd/vertexAdjacency.h>
+
+#include <Graphics/TextureHandleUtility.h>
+
+#include <IMultipleOutputChannel/IMultiOutputConsumer.h>
+#include <MaxOSLInterface.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+struct Transform2DData
+{
+    float  zRotation;
+    Point2 translation;
+    Point2 scale;
+
+    Transform2DData()
+        : zRotation(0.0f)
+        , translation(Point2(0.0f, 0.0f))
+        , scale(Point2(1.0f, 1.0f))
+    {
+    }
+
+    bool operator==(const Transform2DData& config)
+    {
+        return zRotation == config.zRotation && translation == config.translation
+            && scale == config.scale;
+    }
+};
+
+const Class_ID HdMaxMaterialCollection::MaxUsdPreviewSurfaceMaterialClassID
+    = Class_ID(0x6afa4933, 0x4787f1c7);
+
+HdMaxMaterialCollection::MaterialData::MaterialData(
+    const SdfPath&           materialId,
+    const HdMaterialNetwork& materialNetwork)
+    : id(materialId)
+    , sourceNetwork(materialNetwork)
+    , sourceNetworkToken(MaxUsd::MaterialUtils::ToXML(sourceNetwork))
+{
+}
+
+HdMaxMaterialCollection::MaterialData::MaterialData(const SdfPath& materialId, Mtl* maxMaterial)
+    : id(materialId)
+{
+    materialRef = std::make_shared<MaxUsd::MaterialRef>(maxMaterial);
+};
+
+void HdMaxMaterialCollection::MaterialData::UpdateSource(const HdMaterialNetwork& network)
+{
+    // Create a token for the network, to compare with what we had before. If the network did not
+    // actually change, do nothing. USD will dirty materials for a bunch of reasons, sometimes,
+    // there is nothing for us to do.
+    const auto token = TfToken { MaxUsd::MaterialUtils::ToXML(network) };
+    if (token == sourceNetworkToken) {
+        return;
+    }
+
+    sourceNetwork = network;
+    sourceNetworkToken = token;
+
+    stdVpMaterialBuilt = false;
+    maxUsdPreviewSurfaceMaterialBuilt = false;
+
+    stdVpMaterial = {};
+    stdVpInstancesMaterial = {};
+    color = {};
+    // Keep materialRef and stdVpMaterialRef, as the held Mtl* can be reused with updated
+    // parameters.
+}
+
+void HdMaxMaterialCollection::MaterialData::Build(
+    BitmapCache&                         bitmapCache,
+    const MaxUsd::PrimvarMappingOptions& primvarMappingOptions,
+    bool                                 standardViewport,
+    bool                                 maxMaterial)
+{
+    const bool build3dsMaxMaterial = maxMaterial && !maxUsdPreviewSurfaceMaterialBuilt;
+    const bool buildStdVpMaterial = standardViewport && !stdVpMaterialBuilt;
+
+    if (!build3dsMaxMaterial && !buildStdVpMaterial) {
+        return;
+    }
+
+    // Materials are built lazily at render time, we don't want to populate the undo stack.
+    HoldSuspend holdSuspend;
+
+    const auto& maps = build3dsMaxMaterial ? MaxUsd::MaterialUtils::USDPREVIEWSURFACE_MAPS
+                                           : MaxUsd::MaterialUtils::USDPREVIEWSURFACE_STD_VP_MAPS;
+
+    std::map<SdfPath, TfTokenVector> sdfPathToOutputsMap;
+
+    // Build a map of sdfPaths to outputs for texture maps.
+    // For example you might get an entry like : sdfPath -> [diffuseColor, opacity]
+    for (const auto& rel : sourceNetwork.relationships) {
+        const auto it = std::find(maps.begin(), maps.end(), rel.outputName);
+        if (it == maps.end()) {
+            continue;
+        }
+        sdfPathToOutputsMap[rel.inputId].push_back(rel.outputName);
+    }
+
+    // If building the full MaxUsdPreviewSurface material, all the work happens in this
+    // paramblock, which will be initialized from the instance of the MaxUsdPreviewSurface
+    // we will create.
+    IParamBlock2* pb1 = nullptr;
+    // Cache mapping between parameter names and their type from UsdPreviewSurface
+    // scripted material ParamBlock. Only need to do this once.
+    static std::unordered_map<std::string, ParamType2> paramNameToTypeMap;
+
+    // If building the standard viewport representation of the material, there are two cases,
+    // 1) The material is a simple color material, from the float3 value specified in the
+    // UsdPreviewSurface material. 2) The material holds a simple diffuse texture map. Use a
+    // physical material with only the base_color_map set. Hold off on creating the material, as in
+    // the case of simple colors, we might reuse a previously created material for this color (A
+    // simple nitrous StandardMaterialHandle).
+    Texmap* stdVpDiffuseColorTexmap = nullptr;
+
+    if (build3dsMaxMaterial) {
+        Mtl* material = nullptr;
+        if (!materialRef) {
+            material = static_cast<Mtl*>(
+                CreateInstance(MATERIAL_CLASS_ID, MaxUsdPreviewSurfaceMaterialClassID));
+
+            // As soon as the material is assigned to the node, Max triggers some work, assuming it
+            // will have to display the material. However, we manage/handle nitrous VP display
+            // ourselves, so that work is useless, and sometimes quite costly. I found no way to
+            // completely avoid this, but it is at least possible to greatly reduce the cost, by
+            // disabling textures and setting up some other flags.
+            material->SetMtlFlag(MTL_TEX_DISPLAY_ENABLED, FALSE);
+            material->SetMtlFlag(MTL_SUB_DISPLAY_ENABLED, FALSE);
+            material->SetMtlFlag(MTL_HW_TEX_ENABLED, FALSE);
+            material->SetMtlFlag(MTL_HW_MAT_ENABLED, FALSE);
+
+            // Material name doesn't change.
+            const auto pathString = id.GetString();
+            material->SetName(MSTR(MaxUsd::UsdStringToMaxString(pathString)));
+            materialRef = std::make_shared<MaxUsd::MaterialRef>(material);
+        } else {
+            // Reuse the same material, but make sure to reset it completely before we set new
+            // values. The new material may not define all the same properties as before.
+            material = materialRef->GetAs<Mtl>();
+            material->Reset();
+        }
+
+        // The MaxUsdPreviewSurface material settings are stored in ParamBlock 1.
+        pb1 = material->GetParamBlock(1);
+
+        // Get the mapping between parameter names and their type from the UsdPreviewSurface
+        // scripted material ParamBlock.
+        if (paramNameToTypeMap.empty()) {
+            for (int i = 0; i < pb1->NumParams(); i++) {
+                ParamID     paramID = pb1->IndextoID(i);
+                std::string paramName
+                    = MaxUsd::MaxStringToUsdString(pb1->GetLocalName(paramID).data());
+                ParamType2 paramType = pb1->GetParameterType(paramID);
+                paramNameToTypeMap[MaxUsd::UsdStringToLower(paramName)] = paramType;
+            }
+        }
+    }
+
+    TfHashMap<SdfPath, HdMaterialNode, SdfPath::Hash> pathToNode;
+
+    // prefetch 2d transform data
+    std::unordered_map<std::string, Transform2DData> transform2DPathToData;
+    for (const auto& node : sourceNetwork.nodes) {
+        pathToNode.insert({ node.path, node });
+
+        if (node.identifier != TfToken("UsdTransform2d")) {
+            continue;
+        }
+
+        const auto& transformParams = node.parameters;
+
+        const auto nodePath = node.path.GetAsString();
+        transform2DPathToData[nodePath] = Transform2DData();
+
+        const auto transformRotationIt = transformParams.find(TfToken("rotation"));
+        if (transformRotationIt != transformParams.end()
+            && transformRotationIt->second.IsHolding<float>()) {
+            transform2DPathToData[nodePath].zRotation = transformRotationIt->second.Get<float>();
+        }
+
+        const auto transformTranslationIt = transformParams.find(TfToken("translation"));
+        if (transformTranslationIt != transformParams.end()
+            && transformTranslationIt->second.IsHolding<GfVec2f>()) {
+            GfVec2f transformTranslationValue = transformTranslationIt->second.Get<GfVec2f>();
+            transform2DPathToData[nodePath].translation
+                = Point2(transformTranslationValue[0], transformTranslationValue[1]);
+        }
+
+        const auto transformScaleIt = transformParams.find(TfToken("scale"));
+        if (transformScaleIt != transformParams.end()
+            && transformScaleIt->second.IsHolding<GfVec2f>()) {
+            GfVec2f transformScaleValue = transformScaleIt->second.Get<GfVec2f>();
+            transform2DPathToData[nodePath].scale
+                = Point2(transformScaleValue[0], transformScaleValue[1]);
+        }
+    }
+
+    for (const auto& node : sourceNetwork.nodes) {
+        // Figure out texture map inputs from UsdUVTexture nodes.
+        if (node.identifier == TfToken("UsdUVTexture")) {
+            const auto textureMaps = sdfPathToOutputsMap.find(node.path);
+            if (textureMaps == sdfPathToOutputsMap.end()) {
+                continue;
+            }
+
+            const auto fileParamIt = node.parameters.find(TfToken("file"));
+            if (fileParamIt == node.parameters.end()) {
+                continue;
+            }
+
+            std::string wrapsStr, wraptStr;
+
+            const auto wrapSIt = node.parameters.find(TfToken("wrapS"));
+            if (wrapSIt != node.parameters.end()) {
+                if (wrapSIt->second.CanCast<std::string>()) {
+                    wrapsStr = VtValue::Cast<std::string>(wrapSIt->second).Get<std::string>();
+                }
+            }
+
+            const auto wrapTIt = node.parameters.find(TfToken("wrapT"));
+            if (wrapTIt != node.parameters.end()) {
+                if (wrapTIt->second.CanCast<std::string>()) {
+                    wraptStr = VtValue::Cast<std::string>(wrapTIt->second).Get<std::string>();
+                }
+            }
+
+            const auto fileParam = fileParamIt->second;
+            const auto subSetTexturePath = fileParam.Get<SdfAssetPath>().GetResolvedPath();
+
+            // TODO : Add proper support for UDIMs. For now skip textures with a UDIM token.
+            if (subSetTexturePath.find("<UDIM>") != std::string::npos) {
+                continue;
+            }
+
+            // get associated transform data
+            Transform2DData associatedTransformData = {};
+            for (const auto& rel : sourceNetwork.relationships) {
+                if (node.path == rel.outputId) {
+                    const auto relInputPath = rel.inputId.GetAsString();
+                    auto       t2dIt = transform2DPathToData.find(relInputPath);
+                    if (t2dIt != transform2DPathToData.end()) {
+                        associatedTransformData = transform2DPathToData[relInputPath];
+                    }
+                    break;
+                }
+            }
+
+            // Default to 1
+            int        uvChannel = 1;
+            const auto primvar
+                = MaxUsd::MaterialUtils::GetUsdUVTexturePrimvar(node, sourceNetwork, pathToNode);
+            if (!primvar.IsEmpty()) {
+                const auto channel
+                    = primvarMappingOptions.GetPrimvarChannelMapping(primvar.GetString());
+                if (channel != MaxUsd::PrimvarMappingOptions::invalidChannel) {
+                    uvChannel = channel;
+                }
+            }
+
+            // If using non-default texture transforms or wraps, use an OSLUberbitmap. Otherwise, we
+            // use the regular bitmap. When converting to nitrous, the OSLUberbitmap is baked, and
+            // this is very costly, so avoid using it if we can. THIS IS A PARTIAL SOLUTION : We
+            // need to fully move away from the OSLUberbitmap if we can, and support transforms via
+            // the regular bitmaps. The baking is costly but also causes issues, as if the user
+            // changes the baking settings in the viewport, then the converted material falls out of
+            // sync (baking happens at conversion time).
+            const auto nonDefaultWrap
+                = !wrapsStr.empty() && (wrapsStr != "repeat" || wraptStr != "repeat");
+            const auto nonDefaultTransform = !(associatedTransformData == Transform2DData {});
+
+            // USD model card textures generated from the USD scene delegate have a dummy path
+            // "cardTexture". Their wrap is set to clamp, but the texture spans the entire card,
+            // so we dont really need to treat it any different than "repeat". Avoid creating
+            // costly OSL maps in this situation also.
+            bool isDrawModeCardTexture = node.path == pxr::SdfPath("cardTexture");
+
+            if ((nonDefaultWrap || nonDefaultTransform) && !isDrawModeCardTexture) {
+                Texmap* oslTexMapMaterial
+                    = static_cast<Texmap*>(CreateInstance(TEXMAP_CLASS_ID, OSLTex_CLASS_ID));
+                auto pblock0 = oslTexMapMaterial->GetParamBlock(0);
+
+#if MAX_RELEASE >= 26000
+                auto oslPath = std::wstring(MaxSDKSupport::GetString(
+                                                GetCOREInterface()->GetDir(APP_MAX_SYS_ROOT_DIR)))
+                                   .append(L"OSL\\uberbitmap2.osl");
+#else
+                auto oslPath = std::wstring(MaxSDKSupport::GetString(
+                                                GetCOREInterface()->GetDir(APP_MAX_SYS_ROOT_DIR)))
+                                   .append(L"OSL\\uberbitmap.osl");
+#endif
+                // Set the OSL data
+                pblock0->SetValueByName(_T( "OSLPath" ), MSTR(oslPath.c_str()), 0);
+                pblock0->SetValueByName(_T( "OSLAutoUpdate" ), true, 0);
+
+                // The OSLBitmap parameters are in the second param block
+                auto pblock1 = oslTexMapMaterial->GetParamBlock(1);
+                pblock1->SetValueByName(
+                    _T("Filename"), MaxUsd::UsdStringToMaxString(subSetTexturePath), 0);
+
+                // Map channel.
+                pblock1->SetValueByName(_T( "UVSet" ), uvChannel, 0);
+
+                // Set the WrapMode
+                if (!wrapsStr.empty() && !wraptStr.empty() && wrapsStr != wraptStr) {
+                    // warning here - No support for differing wrap modes
+                    pblock1->SetValueByName(_T("WrapMode"), MSTR(L"periodic"), 0);
+                } else if (!wrapsStr.empty() || !wraptStr.empty()) {
+                    std::string usdWrapMode = !wrapsStr.empty() ? wrapsStr : wraptStr;
+                    if (usdWrapMode == "black" || usdWrapMode == "clamp"
+                        || usdWrapMode == "mirror") {
+                        pblock1->SetValueByName(
+                            _T("WrapMode"), MaxUsd::UsdStringToMaxString(usdWrapMode), 0);
+                    } else if (usdWrapMode == "repeat") {
+                        pblock1->SetValueByName(_T("WrapMode"), MSTR(L"periodic"), 0);
+                    } else if (usdWrapMode == "useMetadata") {
+                        // warning here - No support for wrap mode "useMetadata"
+                        pblock1->SetValueByName(_T("WrapMode"), MSTR(L"periodic"), 0);
+                    }
+                } else {
+                    pblock1->SetValueByName(_T("WrapMode"), MSTR(L"periodic"), 0);
+                }
+
+                if (associatedTransformData.translation != Point2(0.0f, 0.0f)) {
+                    pblock1->SetValueByName(
+                        _T("Offset"),
+                        Point3(
+                            -associatedTransformData.translation.x,
+                            -associatedTransformData.translation.y,
+                            0.0f),
+                        0);
+                }
+
+                if (associatedTransformData.zRotation != 0.0f) {
+                    pblock1->SetValueByName(_T("Rotate"), associatedTransformData.zRotation, 0);
+                    pblock1->SetValueByName(_T("RotAxis"), Point3(0.0f, 0.0f, 1.0f), 0);
+                    pblock1->SetValueByName(_T("RotCenter"), Point3(0.0f, 0.0f, 0.0f), 0);
+
+                    Matrix3 rotMatrix = RotateZMatrix(-DegToRad(associatedTransformData.zRotation));
+
+                    Point3   offsetVal;
+                    Interval valid;
+                    bool res = pblock1->GetValueByName<Point3>(_T("Offset"), 0, offsetVal, valid);
+
+                    Point3 usdTranslation = Point3(offsetVal.x, offsetVal.y, 0.0f);
+
+                    Point3 rotatedTranslation = usdTranslation * rotMatrix;
+                    pblock1->SetValueByName(_T("Offset"), rotatedTranslation, 0);
+                }
+
+                if (associatedTransformData.scale != Point2(1.0f, 1.0f)) {
+                    Point3   offsetVal;
+                    Interval valid;
+                    bool res = pblock1->GetValueByName<Point3>(_T("Offset"), 0, offsetVal, valid);
+                    if (MaxUsd::MathUtils::IsAlmostZero(
+                            associatedTransformData.scale.x - associatedTransformData.scale.y)) {
+                        pblock1->SetValueByName(_T("Tiling"), Point3(1.0f, 1.0f, 1.0f), 0);
+                        if (!MaxUsd::MathUtils::IsAlmostZero(associatedTransformData.scale.x)) {
+                            pblock1->SetValueByName(
+                                _T("Scale"), 1.0f / associatedTransformData.scale.x, 0);
+                            pblock1->SetValueByName(
+                                _T("Offset"),
+                                Point3(
+                                    offsetVal.x / associatedTransformData.scale.x,
+                                    offsetVal.y / associatedTransformData.scale.y,
+                                    0.0f),
+                                0);
+                        } else {
+                            pblock1->SetValueByName(_T("Scale"), FLT_MAX, 0);
+                            pblock1->SetValueByName(
+                                _T("Offset"), Point3(FLT_MAX, FLT_MAX, 0.0f), 0);
+                        }
+                    } else {
+                        if (!MaxUsd::MathUtils::IsAlmostZero(associatedTransformData.zRotation)) {
+                            TF_WARN("Non uniform texture scaling with an applied rotation may "
+                                    "result in incorrect "
+                                    "texture mapping.");
+                        }
+                        pblock1->SetValueByName(_T("Scale"), 1.0f, 0);
+
+                        Point3 offsetPoint, tilingPoint;
+                        if (!MaxUsd::MathUtils::IsAlmostZero(associatedTransformData.scale.x)) {
+                            tilingPoint.x = associatedTransformData.scale.x;
+                            offsetPoint.x = offsetVal.x / associatedTransformData.scale.x;
+                        } else {
+                            tilingPoint.x = FLT_MAX;
+                            offsetPoint.x = FLT_MAX;
+                        }
+
+                        if (!MaxUsd::MathUtils::IsAlmostZero(associatedTransformData.scale.y)) {
+                            tilingPoint.y = associatedTransformData.scale.y;
+                            offsetPoint.y = offsetVal.y / associatedTransformData.scale.y;
+                        } else {
+                            tilingPoint.y = FLT_MAX;
+                            offsetPoint.y = FLT_MAX;
+                        }
+                        tilingPoint.z = 0.0f;
+                        offsetPoint.z = 0.0f;
+                        pblock1->SetValueByName(_T("Tiling"), tilingPoint, 0);
+                        pblock1->SetValueByName(_T("Offset"), offsetPoint, 0);
+                    }
+                }
+
+                for (const auto& map : textureMaps->second) {
+                    if (build3dsMaxMaterial && pb1 != nullptr) {
+                        const std::string& mapStr = map.GetString();
+
+                        Texmap* multiOutputTexmap = static_cast<Texmap*>(
+                            CreateInstance(TEXMAP_CLASS_ID, MULTIOUTPUTTOTEXMAP_CLASS_ID));
+                        IMultiOutputConsumer* lMOConsumer = static_cast<IMultiOutputConsumer*>(
+                            multiOutputTexmap->GetInterface(IMULTIOUTPUT_CONSUMER_INTERFACE));
+
+                        // if the source map name has an associated input type, if it does
+                        // connect the correct output of the OSLUberbitmap to the
+                        // MULTIOUTPUTTOTEXMAP material (which in turn gets connected to the correct
+                        // parameter in the UsdPreviewSurface scripted material)
+                        auto paramTypeIt
+                            = paramNameToTypeMap.find(MaxUsd::UsdStringToLower(mapStr));
+                        if (paramTypeIt != paramNameToTypeMap.end()) {
+                            auto paramType = paramTypeIt->second;
+                            if (paramType == TYPE_FLOAT) {
+                                lMOConsumer->SetOutputToInput(0, oslTexMapMaterial, 1);
+                            } else if (paramType == TYPE_FRGBA) {
+                                lMOConsumer->SetOutputToInput(0, oslTexMapMaterial, 0);
+                            } else {
+                                // unhandled parameter type
+                            }
+                        } else {
+                            // unsupported source map
+                        }
+                        // connect MULTIOUTPUTTOTEXMAP material to the actual UsdPreviewSurface
+                        // scripted material
+                        const auto propertyName
+                            = MaxUsd::UsdStringToMaxString(map.GetString() + std::string("_map"));
+                        pb1->SetValueByName(propertyName, multiOutputTexmap, 0);
+                    }
+                    if (buildStdVpMaterial && map == MaxUsdUsdPreviewSurfaceTokens->diffuseColor) {
+                        stdVpDiffuseColorTexmap = oslTexMapMaterial;
+                    }
+                }
+            } else {
+                for (const auto& map : textureMaps->second) {
+                    // Lambda to retrieve or create the bitmap.
+                    // Unfortunately we cannot reuse the same bitmap for the VP, any edits to the
+                    // bitmap might break the nitrous handle we generate manually for the viewport.
+                    auto getBitmap =
+                        [&bitmapCache, &subSetTexturePath, &uvChannel, &textureMaps](bool forVp) {
+                            BitmapTex* bitmapTexture = nullptr;
+                            BitmapKey  key = { subSetTexturePath, uvChannel, forVp };
+                            const auto it = bitmapCache.find(key);
+                            if (it == bitmapCache.end()) {
+                                bitmapTexture = NewDefaultBitmapTex();
+                                bitmapTexture->SetMapName(
+                                    MaxUsd::UsdStringToMaxString(subSetTexturePath).data());
+                                // Use the USD texture prim path as name.
+                                bitmapTexture->SetName(
+                                    MaxUsd::UsdStringToMaxString(textureMaps->first.GetString()));
+                                auto texRef = std::make_shared<MaxUsd::MaterialRef>(bitmapTexture);
+                                bitmapCache.insert({ key, texRef });
+                                bitmapTexture->GetUVGen()->SetMapChannel(uvChannel);
+                            } else {
+                                bitmapTexture = it->second->GetAs<BitmapTex>();
+                                // Textures in the bitmap cache should not have any transforms
+                                // applied or edits. If the user ever applies some, these are
+                                // overriden on update as the bitmap is referencing USD data. This
+                                // situation is only possible for textured referenced by the full
+                                // material. The VP version cannot be edited by users.
+                                if (!forVp) {
+                                    bitmapTexture->GetUVGen()->Reset();
+                                    bitmapTexture->GetUVGen()->SetMapChannel(uvChannel);
+                                }
+                            }
+                            return bitmapTexture;
+                        };
+
+                    if (build3dsMaxMaterial) {
+                        const auto propertyName
+                            = MaxUsd::UsdStringToMaxString(map.GetString() + std::string("_map"));
+                        pb1->SetValueByName(propertyName, getBitmap(false), 0);
+                    }
+                    if (buildStdVpMaterial && map == MaxUsdUsdPreviewSurfaceTokens->diffuseColor) {
+                        stdVpDiffuseColorTexmap = getBitmap(true);
+                    }
+                }
+            }
+        }
+        // Basic parameter inputs (simple values) from the UsdPreviewSurface node.
+        else if (node.identifier == TfToken("UsdPreviewSurface")) {
+            for (auto& param : node.parameters) {
+                const auto& parameterToken = param.first;
+                if (build3dsMaxMaterial) {
+                    auto parameterName = MaxUsd::UsdStringToMaxString(parameterToken.GetString());
+                    // int values : [useSpecularWorkflow]
+                    if (param.second.IsHolding<int>()) {
+                        auto intValue = param.second.Get<int>();
+                        pb1->SetValueByName(parameterName, intValue, 0);
+                    }
+                    // float values : [roughness, clearcoat, clearcoatRoughness, opacity,
+                    // opacityThreshold, ior, displacement, occlusion]
+                    else if (param.second.IsHolding<float>()) {
+                        auto floatValue = param.second.Get<float>();
+                        pb1->SetValueByName(parameterName, floatValue, 0);
+                    }
+                    // float3 values = [diffuseColor, emissiveColor, specularColor, normal]
+                    else if (param.second.IsHolding<GfVec3f>()) {
+                        auto& float3Value = param.second.Get<GfVec3f>();
+
+                        // Treat colors as colors in Max.
+                        if (parameterName.EndsWith(L"Color")) {
+                            Color color { float3Value[0], float3Value[1], float3Value[2] };
+                            pb1->SetValueByName(parameterName, color, 0);
+                        }
+                        // normal as Point3.
+                        else {
+                            Point3 point { float3Value[0], float3Value[1], float3Value[2] };
+                            pb1->SetValueByName(parameterName, point, 0);
+                        }
+                    }
+                }
+                if (buildStdVpMaterial) {
+                    // For the standard viewport, only care about the diffuse color.
+                    if (parameterToken == MaxUsdUsdPreviewSurfaceTokens->diffuseColor) {
+                        if (param.second.IsHolding<GfVec3f>()) {
+                            auto& float3Value = param.second.Get<GfVec3f>();
+                            color = { float3Value[0], float3Value[1], float3Value[2] };
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // Now we can figure out what we really need for the viewport material....
+    if (buildStdVpMaterial) {
+        // Has a diffuse texture? Create a simple physical material, which will be converted to
+        // nitrous. This is faster than instanciating a Nitrous TextureHandle from the Bitmap, as
+        // this causes an extra bake of the map. The shading is also a bit prettier...
+        if (stdVpDiffuseColorTexmap) {
+            Mtl* material = nullptr;
+            if (!stdVpMaterialRef) {
+                material = static_cast<Mtl*>(
+                    CreateInstance(MATERIAL_CLASS_ID, PHYSICALMATERIAL_CLASS_ID));
+                stdVpMaterialRef = std::make_shared<MaxUsd::MaterialRef>(material);
+            } else {
+                // Reuse the same material, just reset it.
+                material = stdVpMaterialRef->GetAs<Mtl>();
+                material->Reset();
+            }
+            material->GetParamBlock(0)->SetValueByName(
+                L"base_color_map", stdVpDiffuseColorTexmap, 0);
+            stdVpMaterial
+                = MaxSDKSupport::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+                    *material, 0, false);
+        } else {
+            // Color only, we dont need a 3dsMax material at all. Typically this would already be
+            // nullptr, but it could be that the USD data was modified in-memory (previously using a
+            // texture map, and no longer). A Nitrous StandardMaterial will be created/reused from
+            // the color we set previously.
+            stdVpMaterialRef.reset();
+        }
+    }
+
+    stdVpMaterialBuilt |= buildStdVpMaterial;
+    maxUsdPreviewSurfaceMaterialBuilt |= build3dsMaxMaterial;
+}
+
+const HdMaterialNetwork& HdMaxMaterialCollection::MaterialData::GetSourceMaterialNetwork() const
+{
+    return sourceNetwork;
+}
+
+std::shared_ptr<MaxUsd::MaterialRef> HdMaxMaterialCollection::MaterialData::GetMaxMaterial() const
+{
+    return maxUsdPreviewSurfaceMaterialBuilt ? materialRef : nullptr;
+}
+
+MaxSDK::Graphics::BaseMaterialHandle&
+HdMaxMaterialCollection::MaterialData::GetNitrousMaterial(bool forInstances)
+{
+    auto& handle = forInstances ? stdVpInstancesMaterial : stdVpMaterial;
+    if (handle.IsValid()) {
+        return handle;
+    }
+
+    // Diffuse color texture material.
+    if (stdVpMaterialRef) {
+        const auto material = stdVpMaterialRef->GetAs<Mtl>();
+        if (!material) {
+            DbgAssert(0 && "Viewport material uninitialized.");
+            return handle;
+        }
+        handle = MaxSDKSupport::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+            *material, 0, false);
+        return handle;
+    }
+    // Color only, check the cache and use a simple StandardMaterialHandle.
+    handle = HdMaxColorMaterial::Get(color, forInstances);
+    return handle;
+}
+
+bool HdMaxMaterialCollection::MaterialData::IsVpMaterialBuilt() const { return stdVpMaterialBuilt; }
+
+MaxSDK::Graphics::BaseMaterialHandle
+HdMaxMaterialCollection::MaterialData::ConvertToNitrous(Mtl* material)
+{
+    // Materials converted to Nitrous react poorly to modifications from the Material editor.
+    // To avoid those issues, copy the material before the conversion.
+    const auto copy = static_cast<Mtl*>(CloneRefHierarchy(materialRef->GetAs<Mtl>()));
+
+    // We only support the standard viewport. Opacity/OpacityThreshold is implemented using OSL, the
+    // conversion of this graph using realistic=false breaks, it is not expected to properly show
+    // the opacity, but we should at least get an opaque result, but we just get a completely
+    // invisible nitrous material. Workaround this problem by just disabling the opacity map in
+    // standard mode.
+    BitmapTex* noOpacityMap = nullptr;
+    copy->GetParamBlock(1)->SetValueByName(L"opacity_map", noOpacityMap, 0);
+    copy->GetParamBlock(1)->SetValueByName(L"opacity", 1.0f, 0);
+
+    return MaxSDKSupport::Graphics::MaterialConversionHelper::ConvertMaxToNitrousMaterial(
+        *copy, 0, false);
+}
+
+HdMaxMaterialCollection::MaterialDataPtr
+HdMaxMaterialCollection::RegisterMaxMaterial(const SdfPath& materialId, Mtl* maxMaterial)
+{
+    const auto it = materials.find(materialId);
+    if (it != materials.end()) {
+        return it->second;
+    }
+
+    MaterialDataPtr materialData = std::make_shared<MaterialData>(materialId, maxMaterial);
+    materials.insert({ materialId, materialData });
+
+    return materialData;
+}
+
+HdMaxMaterialCollection::MaterialDataPtr
+HdMaxMaterialCollection::AddMaterial(HdSceneDelegate* delegate, const SdfPath& materialId)
+{
+    const auto it = materials.find(materialId);
+    if (it != materials.end()) {
+        return it->second;
+    }
+    return UpdateMaterial(delegate, materialId);
+}
+
+void HdMaxMaterialCollection::RegisterMaxBitmap(BitmapTex* texture)
+{
+    auto      textureRef = std::make_shared<MaxUsd::MaterialRef>(texture);
+    BitmapKey key { MaxUsd::MaxStringToUsdString(texture->GetMapName()),
+                    texture->GetUVGen()->GetMapChannel(),
+                    false };
+    bitmapCache.insert({ key, textureRef });
+}
+
+HdMaxMaterialCollection::MaterialDataPtr
+HdMaxMaterialCollection::UpdateMaterial(HdSceneDelegate* delegate, const SdfPath& materialId)
+{
+    const VtValue resource = delegate->GetMaterialResource(materialId);
+    if (resource.IsHolding<HdMaterialNetworkMap>()) {
+        const HdMaterialNetworkMap& networkMap = resource.UncheckedGet<HdMaterialNetworkMap>();
+        HdMaterialNetwork           matNetwork;
+        TfMapLookup(networkMap.map, HdMaterialTerminalTokens->surface, &matNetwork);
+
+        auto it = materials.find(materialId);
+
+        MaterialDataPtr materialData = nullptr;
+
+        // Material doesn't exist yet.
+        if (it == materials.end()) {
+            materialData = std::make_shared<MaterialData>(materialId, matNetwork);
+            materials.insert({ materialId, materialData });
+        } else {
+            it->second->UpdateSource(matNetwork);
+            materialData = it->second;
+        }
+
+        return materialData;
+    }
+    return nullptr;
+}
+
+// Must be called from the main UI thread.
+void HdMaxMaterialCollection::BuildMaterials(
+    const MaxUsd::ProgressReporter&      progressReporter,
+    const MaxUsd::PrimvarMappingOptions& primvarMappingOptions,
+    bool                                 standardViewport,
+    bool                                 maxMaterial)
+{
+    // Only show progress in the UI if we have materials that have to be built from scratch,
+    // I.e. we have not generated any 3dsMax material for them yet.
+    bool showProgressForMaxMaterials = false;
+    bool showProgressForStdViewportMaterials = false;
+    for (const auto& entry : materials) {
+        // If we need to build full materials, prioritize showing progress for that.
+        showProgressForMaxMaterials |= maxMaterial && entry.second->GetMaxMaterial() == nullptr;
+        if (showProgressForMaxMaterials) {
+            break;
+        }
+        showProgressForStdViewportMaterials
+            |= standardViewport && !entry.second->IsVpMaterialBuilt();
+    }
+
+    const bool progressReporting
+        = showProgressForMaxMaterials || showProgressForStdViewportMaterials;
+
+    // Use a progressBar if new materials need to be built.
+    if (showProgressForMaxMaterials) {
+        progressReporter.Start(GetString(IDS_RENDERDELEGATE_BUILD_MATERIALS_PROGRESS_TITLE));
+    } else if (showProgressForStdViewportMaterials) {
+        progressReporter.Start(GetString(IDS_RENDERDELEGATE_BUILD_STD_VP_MATERIALS_PROGRESS_TITLE));
+    }
+
+    // Loop through all the materials, and build the Max/Nitrous representations.
+    int currentMaterialIndex = 0;
+    for (const auto& material : materials) {
+        material.second->Build(bitmapCache, primvarMappingOptions, standardViewport, maxMaterial);
+        if (progressReporting) {
+            const auto currentPercentage = static_cast<double>(currentMaterialIndex++)
+                / static_cast<double>(materials.size()) * 100.0;
+            progressReporter.Update(static_cast<int>(currentPercentage));
+        }
+    }
+
+    if (progressReporting) {
+        progressReporter.End();
+    }
+}
+
+std::shared_ptr<MaxUsd::MaterialRef> HdMaxMaterialCollection::GetDisplayColorMaterial()
+{
+    // Check if the Vertex displayColor was already created.
+    if (displayColorMaterial) {
+        return displayColorMaterial;
+    }
+
+    static Class_ID vcolClassID(VCOL_CLASS_ID, 0);
+
+    Mtl*          mat = NewDefaultMaterial(_T("USD"));
+    Texmap*       map = (Texmap*)CreateInstance(TEXMAP_CLASS_ID, vcolClassID);
+    IParamBlock2* pb = mat->GetParamBlockByID(0);
+    pb->SetValueByName(L"base_color_map_on", TRUE, 0);
+    pb->SetValueByName(L"base_color_map", map, 0);
+
+    mat->SetShininess(0, 0);
+    mat->SetName(L"displayColor");
+
+    displayColorMaterial = std::make_shared<MaxUsd::MaterialRef>(mat);
+    return displayColorMaterial;
+}
+
+void HdMaxMaterialCollection::Clear()
+{
+    materials.clear();
+    bitmapCache.clear();
+}
+
+void HdMaxMaterialCollection::RemoveMaterial(pxr::SdfPath const& path)
+{
+    materials.unsafe_erase(path);
+}
+
+// Disable obscure warning only occurring for 2022 (pixar usd version: 21.11):
+// no definition for inline function : pxr::DefaultValueHolder Was not able to identify what is
+// triggering this.
+#pragma warning(disable : 4506)
\ No newline at end of file
diff --git a/src/RenderDelegate/HdMaxMaterialCollection.h b/src/RenderDelegate/HdMaxMaterialCollection.h
new file mode 100644
index 0000000..c5810bd
--- /dev/null
+++ b/src/RenderDelegate/HdMaxMaterialCollection.h
@@ -0,0 +1,245 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "RenderDelegateAPI.h"
+
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+#include <MaxUsd/Utilities/MaterialRef.h>
+#include <MaxUsd/Utilities/ProgressReporter.h>
+
+#include <pxr/imaging/hd/material.h>
+
+#include <Graphics/BaseMaterialHandle.h>
+#include <Graphics/StandardMaterialHandle.h>
+
+#include <MaxUsd.h>
+
+class RenderDelegateAPI HdMaxMaterialCollection
+{
+public:
+    // Bitmap key [file path, channel, is for viewport]
+    typedef std::tuple<std::string, int, bool> BitmapKey;
+    struct BitmapKeyHash
+    {
+        size_t operator()(const BitmapKey& key) const
+        {
+            std::size_t hash = std::hash<std::string> {}(std::get<0>(key));
+            boost::hash_combine(hash, std::get<1>(key));
+            boost::hash_combine(hash, std::get<2>(key));
+            return hash;
+        }
+    };
+
+    typedef pxr::TfHashMap<BitmapKey, std::shared_ptr<MaxUsd::MaterialRef>, BitmapKeyHash>
+        BitmapCache;
+
+    class MaterialData
+    {
+    public:
+        /**
+         * \brief Constructor. Used when the material data is first created from a hydra material network.
+         * \param materialId The material's path.
+         * \param materialNetwork The material network the 3dsMax material will be built from.
+         */
+        MaterialData(const pxr::SdfPath& materialId, const pxr::HdMaterialNetwork& materialNetwork);
+
+        /**
+         * \brief Constructor. Used when the material data is first created from a pre-existing 3dsMax UsdPreviewSurface
+         * material.
+         * \param materialId The material's path.
+         * \param maxMaterial The 3dsMax UsdPreviewSurface material.
+         */
+        MaterialData(const pxr::SdfPath& materialId, Mtl* maxMaterial);
+
+        /**
+         * \brief Updates the material's source network. After calling this, the material will need to be rebuilt.
+         * \param network The new material network.
+         */
+        void UpdateSource(const pxr::HdMaterialNetwork& network);
+
+        /**
+         * \brief Builds the Max material from the HdMaterialNetwork. Note that this does not generate the nitrous
+         * representations. These are created lazily when requested. Building materials should only
+         * be done from the main thread of 3dsMax.
+         * \param bitmapCache A bitmap cache to be used when building the material. Bitmaps built from USD texture
+         * nodes with no transform applied are added to this cache for reuse.
+         * \param primvarMappingOptions Primvar to channel mapping options. Required to correctly set the input channel
+         * on the created 3dsMax bitmaps.
+         * \param stdVpMaterial Whether or not to build the standard viewport representation of the material.
+         * \param maxMaterial Whether or not to build the full MaxUsdPreviewSurface corresponding material.
+         */
+        void Build(
+            BitmapCache&                         bitmapCache,
+            const MaxUsd::PrimvarMappingOptions& primvarMappingOptions,
+            bool                                 stdVpMaterial,
+            bool                                 maxMaterial);
+
+        /**
+         * \brief Returns the source hydra material network.
+         * \return The network.
+         */
+        const pxr::HdMaterialNetwork& GetSourceMaterialNetwork() const;
+
+        /**
+         * \brief Returns the built 3dsMax material, if not build, this returns null.
+         * \return The 3dsMax material.
+         */
+        std::shared_ptr<MaxUsd::MaterialRef> GetMaxMaterial() const;
+
+        /**
+         * \brief Gets the nitrous representation of the material.
+         * \param forInstances We need to keep different versions of viewport materials whether they
+         * are used for simple geometry or instances (sharing may break the display). If True,
+         * the returned material is the one meant for instances.
+         * \return The nitrous material. Should only be called from the 3dsMax main thread.
+         */
+        MaxSDK::Graphics::BaseMaterialHandle& GetNitrousMaterial(bool forInstances);
+
+        /**
+         * \brief Returns true if the standard viewport material representation is built.
+         * \return True if the viewport material is built, false otherwise.
+         */
+        bool IsVpMaterialBuilt() const;
+
+        /**
+         * \brief Returns the material Id (the USD prim path).
+         * \return The id.
+         */
+        pxr::SdfPath GetId() { return id; };
+
+    private:
+        /**
+         * \brief Converts a Mtl* pointer to a Nitrous handle. The passed material is first copied.
+         * Materials converted to nitrous can react poorly in the material editor. This is a
+         * workaround...
+         * \param material The material to convert. Should only be called from the 3dsMax main thread.
+         * \return The nitrous handle for the given material.
+         */
+        MaxSDK::Graphics::BaseMaterialHandle ConvertToNitrous(Mtl* material);
+
+        /// The material's unique identifier (its path).
+        pxr::SdfPath id;
+        /// The source material network this material will be built from.
+        pxr::HdMaterialNetwork sourceNetwork;
+        /// A token representing the network, for fast comparison.
+        pxr::TfToken sourceNetworkToken;
+        /// The converted max Material (wrapped in a RefMaker to protect it from deletion).
+        std::shared_ptr<MaxUsd::MaterialRef> materialRef = nullptr;
+
+        /// Nitrous representations. We potentially need two versions, one for instanced geometry
+        /// and one for regular geometry. This is workaround for an issue where using the material
+        /// for instanced geometry breaks it for regular geometry.
+        std::shared_ptr<MaxUsd::MaterialRef> stdVpMaterialRef = nullptr;
+        MaxSDK::Graphics::BaseMaterialHandle stdVpMaterial;
+        MaxSDK::Graphics::BaseMaterialHandle stdVpInstancesMaterial;
+        Color                                color; // For "color only" materials.
+
+        /// Flags telling us whether the 3dsmax materials are up to date with the source network.
+        /// Standard viewport material (color / basic texture).
+        bool stdVpMaterialBuilt = false;
+        /// 3dsMax material instance. For fallback rendering, and eventually high quality viewport.
+        bool maxUsdPreviewSurfaceMaterialBuilt = false;
+    };
+
+    typedef std::shared_ptr<MaterialData> MaterialDataPtr;
+
+    /**
+     * \brief Adds a new material to the collection, if not already existing.
+     * \param delegate The scene delegate.
+     * \param materialId The id of the material we are adding.
+     * \return The material data that was added to the collection.
+     */
+    MaterialDataPtr AddMaterial(pxr::HdSceneDelegate* delegate, const pxr::SdfPath& materialId);
+
+    /**
+     * \brief Registers an existing UsdPreviewSurface 3dsMax material in the collection. Useful when
+     * loading from a .max file, to "reconnect" the 3dsMax material to the source material at
+     * "materialId", if the material ever changes on the USD side, maxMaterial will be updated
+     * accordingly. The function assumes that maxMaterial is a UsdPreviewSurface material.
+     * \param materialId The material's id/path.
+     * \param maxMaterial The 3dsMax material to register for this id.
+     * \return The material data pointer for this collection entry.
+     */
+    MaterialDataPtr RegisterMaxMaterial(const pxr::SdfPath& materialId, Mtl* maxMaterial);
+
+    /**
+     * \brief Register's a bitmap texture to the material collection, this simply adds the bitmap to
+     * the bitmapCache.
+     * \param texture The bitmap to register.
+     */
+    void RegisterMaxBitmap(BitmapTex* texture);
+
+    /**
+     * \brief Update's the source hydra material network of the material. The 3dsMax material will
+     * need to be rebuilt after calling this function.
+     * \param delegate The scene delegate.
+     * \param materialId The material's path.
+     * \return The updated material data.
+     */
+    MaterialDataPtr UpdateMaterial(pxr::HdSceneDelegate* delegate, const pxr::SdfPath& materialId);
+
+    /**
+     * \brief Builds all materials present in the collection, i.e. generating the 3dsMax material from
+     * the source hydra material networks.
+     * \param progressReporter If new materials need to be built from scratch, which can be a lengthy
+     * operation, the progress is reported via this progressReporter instance (Typically this would
+     * be hooked up to some UI).
+     * \param standardViewport True if we want to build the standard viewport representation of the materials.
+     * \param maxMaterial True if we want to built the full MaxUsdPreviewSurface representation of the materials.
+     */
+    void BuildMaterials(
+        const MaxUsd::ProgressReporter&      progressReporter,
+        const MaxUsd::PrimvarMappingOptions& primvarMappingOptions,
+        bool                                 standardViewport,
+        bool                                 maxMaterial);
+
+    /**
+     * \brief Returns the display color material, a simple 3dsMax material using the vertex color as
+     * diffuseColor. Used to properly render the displayColor primvar.
+     * \return The display color material.
+     */
+    std::shared_ptr<MaxUsd::MaterialRef> GetDisplayColorMaterial();
+
+    /**
+     * \brief Completely clear the material collection, including any cached bitmaps.
+     */
+    void Clear();
+
+    /**
+     * Removes a material from the collection.
+     * IMPORTANT : Removing materials is not thread safe - it should only be called
+     * when there is no possibility of concurrent access to the collection.
+     * @param path The path of the material to be removed.
+     */
+    void RemoveMaterial(pxr::SdfPath const& path);
+
+    /**
+     * \brief The class ID of the 3dsMax UsdPreviewSurface material. This material class is exposed to users
+     * and is essentially a scripted material using a PhysicalMaterial delegate.
+     */
+    static const Class_ID MaxUsdPreviewSurfaceMaterialClassID;
+
+private:
+    /// Material cache.
+    tbb::concurrent_unordered_map<pxr::SdfPath, MaterialDataPtr, pxr::SdfPath::Hash> materials;
+    /// Display color material.
+    std::shared_ptr<MaxUsd::MaterialRef> displayColorMaterial = nullptr;
+    /// A cache of bitmap, corresponding to UsdUVTexture prims. We only cache bitmaps that do not
+    /// have transforms (UsdTransform2d) applied. Bitmaps meant for the viewport, and for the full
+    /// 3dsMax materials are kept seperate.
+    BitmapCache bitmapCache;
+};
diff --git a/src/RenderDelegate/HdMaxRenderData.cpp b/src/RenderDelegate/HdMaxRenderData.cpp
new file mode 100644
index 0000000..b0dfec7
--- /dev/null
+++ b/src/RenderDelegate/HdMaxRenderData.cpp
@@ -0,0 +1,342 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxRenderData.h"
+
+#include "HdMaxDisplaySettings.h"
+
+#include <MaxUsd/Utilities/VtUtils.h>
+
+// Helper, sets a buffer in the geometry at the given index.
+void _SetVertexBuffer(
+    std::shared_ptr<MaxRenderGeometryFacade> geometry,
+    int                                      index,
+    MaxSDK::Graphics::VertexBufferHandle     newBuffer)
+{
+    if (geometry->GetVertexBufferCount() == index) {
+        geometry->AddVertexBuffer(newBuffer);
+        return;
+    }
+    if (geometry->GetVertexBufferCount() < index) {
+        return;
+    }
+
+    std::vector<MaxSDK::Graphics::VertexBufferHandle> buffers;
+    const auto bufferCount = geometry->GetVertexBufferCount();
+    for (int i = 0; i < bufferCount; i++) {
+        if (i == index) {
+            buffers.push_back(newBuffer);
+            continue;
+        }
+        buffers.push_back(geometry->GetVertexBuffer(i));
+    }
+
+    for (int i = int(bufferCount) - 1; i >= 0; --i) {
+        geometry->RemoveVertexBuffer(i);
+    }
+
+    for (int i = 0; i < bufferCount; i++) {
+        geometry->AddVertexBuffer(buffers[i]);
+    }
+}
+
+MaxSDK::Graphics::RenderItemHandleDecorator&
+HdMaxRenderData::SubsetRenderData::GetRenderItemDecorator(bool selected)
+{
+    if (selected) {
+        return selectionRenderItem;
+    }
+    return renderItem;
+}
+
+bool HdMaxRenderData::SubsetRenderData::IsInstanced() const { return !renderItem.IsValid(); }
+
+bool HdMaxRenderData::IsInstanced() const
+{
+    if (shadedSubsets.empty()) {
+        return false;
+    }
+
+    return shadedSubsets[0].IsInstanced();
+}
+
+void HdMaxRenderData::UpdateRenderGeometry(bool fullReload)
+{
+    if (shadedSubsets.empty()) {
+        return;
+    }
+
+    const bool updateIndices = fullReload
+        || std::any_of(shadedSubsets.begin(),
+                       shadedSubsets.end(),
+                       [](const SubsetRenderData& subset) {
+                           return HdMaxChangeTracker::CheckDirty(
+                               subset.dirtyBits, HdMaxChangeTracker::DirtyIndices);
+                       });
+
+    // Update indices.
+    if (updateIndices) {
+        size_t totalWireSize = 0;
+        for (const auto& subset : shadedSubsets) {
+            const auto                          renderGeometry = subset.geometry;
+            MaxSDK::Graphics::IndexBufferHandle indexBuffer;
+
+            auto       indices = subset.indices;
+            const auto newNumberOfIndices = indices.size() * 3;
+            if (!indices.empty()) {
+                const auto newData = MaxUsd::Vt::GetNoCopy<int, pxr::GfVec3i>(indices);
+                indexBuffer.Initialize(MaxSDK::Graphics::IndexTypeInt, newNumberOfIndices, newData);
+            }
+            renderGeometry->SetIndexBuffer(indexBuffer);
+
+            renderGeometry->SetPrimitiveCount(int(indices.size()));
+            totalWireSize += subset.wireIndices.size();
+        }
+
+        // Wireframe
+        if (totalWireSize) {
+            MaxSDK::Graphics::IndexBufferHandle indexBuffer;
+
+            indexBuffer.Initialize(MaxSDK::Graphics::IndexTypeInt, totalWireSize, nullptr);
+
+            size_t nextStartIndex = 0;
+            for (const auto& subset : shadedSubsets) {
+                auto data = (int*)(indexBuffer.Lock(
+                    nextStartIndex, subset.wireIndices.size(), MaxSDK::Graphics::WriteAcess));
+
+                int* newData = const_cast<int*>(subset.wireIndices.cdata());
+                std::copy(newData, newData + subset.wireIndices.size(), data);
+                indexBuffer.Unlock();
+                nextStartIndex += subset.wireIndices.size();
+            }
+            wireframe.geometry->SetIndexBuffer(indexBuffer);
+        }
+        wireframe.geometry->SetPrimitiveCount(int(totalWireSize) / 2);
+    }
+
+    // Update vertex buffers. All subsets share the same vertex buffers, so just look at the
+    // geometry from the first subset.
+    // const auto renderGeometry = shadedSubsets[0].geometry;
+
+    bool cleanupBuffers = false;
+
+    auto updateNitrousBuffer = [this, &fullReload, &cleanupBuffers](
+                                   std::vector<SubsetRenderData>& subsetsToUpdate,
+                                   int                            bufferIndex,
+                                   const pxr::VtVec3fArray&       source,
+                                   pxr::HdDirtyBits               dirtyFlag) {
+        if (subsetsToUpdate.empty()) {
+            return;
+        }
+
+        // All subsets share the same vertex buffers - we dont need to load the buffer unless at
+        // least one is flagged dirty. In most cases, either all are dirty, or none. But a mix can
+        // happen here, for example if only a few subsets end up consolidated - when we get here,
+        // these will be clean, but the rest still marked dirty.
+        const auto hasAtLeastOneDirtySubset = std::any_of(
+            subsetsToUpdate.begin(),
+            subsetsToUpdate.end(),
+            [&dirtyFlag](const SubsetRenderData& subset) {
+                return HdMaxChangeTracker::CheckDirty(subset.dirtyBits, dirtyFlag);
+            });
+
+        if (!hasAtLeastOneDirtySubset && !fullReload) {
+            return;
+        }
+
+        // All the passed subsets will share the same vertex buffers.
+        const auto& renderGeometry = subsetsToUpdate[0].geometry;
+
+        // Update the buffer.
+        auto       vertexBuffer = renderGeometry->GetVertexBuffer(bufferIndex);
+        const auto previousSize = vertexBuffer.IsValid() ? vertexBuffer.GetNumberOfVertices() : 0;
+        const auto newSize = source.size();
+        const auto newData = MaxUsd::Vt::GetNoCopy<pxr::GfVec3f, pxr::GfVec3f>(source);
+
+        if (previousSize == newSize && vertexBuffer.IsValid()) {
+            auto data = (pxr::GfVec3f*)(vertexBuffer.Lock(0, 0, MaxSDK::Graphics::WriteAcess));
+            std::copy(newData, newData + source.size(), data);
+            vertexBuffer.Unlock();
+        }
+        // Size changed, need to initialize a new buffer.
+        else {
+            if (newSize == 0) {
+                if (vertexBuffer.IsValid()) {
+                    // Buffers with no vertices will be removed from the geometry.
+                    vertexBuffer.SetNumberOfVertices(0);
+                    cleanupBuffers = true;
+                }
+            } else {
+                vertexBuffer.Initialize(sizeof(float) * 3, newSize, newData);
+            }
+        }
+
+        // Make sure it is properly assigned to all subsets.
+        if (vertexBuffer.IsValid()) {
+            for (const auto& subsetItem : subsetsToUpdate) {
+                const auto geometry = subsetItem.geometry;
+                _SetVertexBuffer(geometry, bufferIndex, vertexBuffer);
+            }
+            // Wireframe doesnt need UVs.
+            if (bufferIndex != UvsBuffer) {
+                _SetVertexBuffer(wireframe.geometry, bufferIndex, vertexBuffer);
+            }
+        }
+    };
+
+    updateNitrousBuffer(shadedSubsets, PointsBuffer, points, HdMaxChangeTracker::DirtyPoints);
+    updateNitrousBuffer(shadedSubsets, NormalsBuffer, normals, HdMaxChangeTracker::DirtyNormals);
+
+    // For selection, we need to generate the data (ones or zeros). Only do so if we need to...
+    const auto dirtySelection = std::any_of(
+        shadedSubsets.begin(), shadedSubsets.end(), [](const SubsetRenderData& subset) {
+            return HdMaxChangeTracker::CheckDirty(
+                subset.dirtyBits, HdMaxChangeTracker::DirtySelectionHighlight);
+        });
+    if (dirtySelection) {
+        const pxr::VtVec3fArray selectionBuff(
+            points.size(), selected ? pxr::GfVec3f(1.0f) : pxr::GfVec3f(0.0f));
+        updateNitrousBuffer(
+            shadedSubsets,
+            SelectionBuffer,
+            selectionBuff,
+            HdMaxChangeTracker::DirtySelectionHighlight);
+    }
+
+    if (uvs.empty()) {
+        updateNitrousBuffer(shadedSubsets, UvsBuffer, {}, HdMaxChangeTracker::DirtyUvs);
+    } else {
+        std::unordered_map<int, std::vector<SubsetRenderData>> subsetSharingDiffuseColorUv;
+        for (const auto& subset : shadedSubsets) {
+            // For now, only support standard mode in the viewport, so only a single UV. Make sure
+            // we use the UV used for the diffuseColor.
+
+            // Default to the first uv in our list.
+            auto uvIndex = 0;
+            for (int i = 0; i < uvs.size(); ++i) {
+                auto it = materialDiffuseColorUvPrimvars.find(subset.materiaId);
+                if (it != materialDiffuseColorUvPrimvars.end()) {
+                    if (it->second == uvs[i].varname) {
+                        uvIndex = i;
+                        break;
+                    }
+                }
+            }
+            subsetSharingDiffuseColorUv[uvIndex].push_back(subset);
+        }
+        for (auto entry : subsetSharingDiffuseColorUv) {
+            updateNitrousBuffer(
+                entry.second, UvsBuffer, uvs[entry.first].data, HdMaxChangeTracker::DirtyUvs);
+        }
+    }
+
+    // Everything is clean now!
+    for (auto& subset : shadedSubsets) {
+        HdMaxChangeTracker::ClearDirtyBits(subset.dirtyBits);
+    }
+    if (cleanupBuffers) {
+        // Make sure we don't have any invalid vertex buffers (this would typically happen when
+        // switching to performance mode, which doesn't load UVs and Vertex Colors).
+        auto geom = shadedSubsets[0].geometry;
+        for (int i = int(geom->GetVertexBufferCount() - 1); i >= 0; i--) {
+            auto vertexBuffer = geom->GetVertexBuffer(i);
+            if (!vertexBuffer.IsValid() || vertexBuffer.GetNumberOfVertices() == 0) {
+                geom->RemoveVertexBuffer(i);
+            }
+        }
+    }
+}
+
+void HdMaxRenderData::SetAllSubsetRenderDataDirty(const pxr::HdDirtyBits& dirtyFlag)
+{
+    for (auto& subset : shadedSubsets) {
+        HdMaxChangeTracker::SetDirty(subset.dirtyBits, dirtyFlag);
+    }
+}
+
+MaxSDK::Graphics::MaterialRequiredStreams HdMaxRenderData::GetRequiredStreams(bool wire)
+{
+    MaxSDK::Graphics::MaterialRequiredStreams multiStreamRequirements;
+    {
+        MaxSDK::Graphics::MaterialRequiredStreamElement multiStreamElement;
+        multiStreamElement.SetType(MaxSDK::Graphics::VertexFieldFloat3);
+        multiStreamElement.SetChannelCategory(MaxSDK::Graphics::MeshChannelPosition);
+        multiStreamElement.SetStreamIndex(PointsBuffer);
+        multiStreamRequirements.AddStream(multiStreamElement);
+    }
+    // Need normals even in wireframe, as it can still be shaded.
+    {
+        MaxSDK::Graphics::MaterialRequiredStreamElement multiStreamElement;
+        multiStreamElement.SetType(MaxSDK::Graphics::VertexFieldFloat3);
+        multiStreamElement.SetChannelCategory(MaxSDK::Graphics::MeshChannelVertexNormal);
+        multiStreamElement.SetStreamIndex(NormalsBuffer);
+        multiStreamRequirements.AddStream(multiStreamElement);
+    }
+    // We use the vertex color buffer for selection highlighting in both shaded and wire items.
+    {
+        MaxSDK::Graphics::MaterialRequiredStreamElement multiStreamElement;
+        multiStreamElement.SetType(MaxSDK::Graphics::VertexFieldFloat3);
+        multiStreamElement.SetChannelCategory(MaxSDK::Graphics::MeshChannelVertexColor);
+        multiStreamElement.SetStreamIndex(SelectionBuffer);
+        multiStreamRequirements.AddStream(multiStreamElement);
+    }
+
+    if (!wire) {
+        MaxSDK::Graphics::MaterialRequiredStreamElement multiStreamElement;
+        multiStreamElement.SetType(MaxSDK::Graphics::VertexFieldFloat3);
+        multiStreamElement.SetChannelCategory(MaxSDK::Graphics::MeshChannelTexcoord);
+        multiStreamElement.SetStreamIndex(UvsBuffer);
+        multiStreamRequirements.AddStream(multiStreamElement);
+    }
+
+    return multiStreamRequirements;
+}
+
+MaxSDK::Graphics::BaseMaterialHandle
+HdMaxRenderData::GetDisplayColorNitrousHandle(bool instanced) const
+{
+    return instanced ? instanceDisplayColorNitrousHandle : displayColorNitrousHandle;
+}
+
+MaxSDK::Graphics::BaseMaterialHandle HdMaxRenderData::ResolveViewportMaterial(
+    const SubsetRenderData&     subsetGeometry,
+    const HdMaxDisplaySettings& displaySettings,
+    bool                        instanced) const
+{
+    // Figure out the material we need to use in the viewport.
+    switch (displaySettings.GetDisplayMode()) {
+    case HdMaxDisplaySettings::USDDisplayColor: {
+
+        return GetDisplayColorNitrousHandle(instanced);
+    }
+    case HdMaxDisplaySettings::USDPreviewSurface: {
+        auto                                 materialData = subsetGeometry.materialData;
+        MaxSDK::Graphics::BaseMaterialHandle nitrousMaterial;
+        if (materialData) {
+            nitrousMaterial = materialData->GetNitrousMaterial(instanced);
+        }
+        if (nitrousMaterial.IsValid()) {
+            return nitrousMaterial;
+        }
+        // Fallback to display color.
+        return GetDisplayColorNitrousHandle(instanced);
+    }
+    case HdMaxDisplaySettings::WireColor:
+    default: {
+
+        return displaySettings.GetWireColorMaterial(instanced);
+    }
+    }
+}
diff --git a/src/RenderDelegate/HdMaxRenderData.h b/src/RenderDelegate/HdMaxRenderData.h
new file mode 100644
index 0000000..7dea6d0
--- /dev/null
+++ b/src/RenderDelegate/HdMaxRenderData.h
@@ -0,0 +1,211 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "HdMaxChangeTracker.h"
+#include "HdMaxInstanceGen.h"
+#include "HdMaxMaterialCollection.h"
+#include "MaxRenderGeometryFacade.h"
+
+#include <maxUsd/Utilities/MeshUtils.h>
+
+#include <Graphics/RenderItemHandleDecorator.h>
+#include <Graphics/StandardMaterialHandle.h>
+
+/**
+ * \brief Nitrous data used to render a USD Prim in the viewport.
+ */
+struct RenderDelegateAPI HdMaxRenderData
+{
+    /**
+     * \brief Constructor.
+     * \param rPrimId The id of the USD render Prim tied to this render data.
+     */
+    explicit HdMaxRenderData(const pxr::SdfPath& rPrimPath)
+        : rPrimPath(rPrimPath)
+    {
+    }
+
+    enum VertexBuffers
+    {
+        PointsBuffer = 0,
+        NormalsBuffer = 1,
+        SelectionBuffer = 2,
+        UvsBuffer = 3
+    };
+
+    HdMaxRenderData(const HdMaxRenderData& data) = default;
+    HdMaxRenderData(HdMaxRenderData&& data) noexcept = default;
+    HdMaxRenderData& operator=(const HdMaxRenderData& data) = default;
+    HdMaxRenderData& operator=(HdMaxRenderData&& data) noexcept = default;
+    ~HdMaxRenderData() = default;
+
+    pxr::SdfPath rPrimPath;
+    bool         visible = true;
+    bool         renderTagActive = true;
+
+    // Considering UsdGeomSubsets, a prim may have multiple different materials bound
+    // to parts of the mesh. Nitrous allows a single material per mesh. Therefor,
+    // in those situations we split the mesh. We end up with multiple render items, one for each
+    // material bound (could be less than the number of UsdGeomSubsets). The vertex buffers are
+    // shared across the different render items).
+    struct SubsetRenderData
+    {
+        /// The material id, used as identifier for the subset.
+        pxr::SdfPath materiaId;
+        /// The nitrous render item for the subset. In the case of instanced geometry, this remains
+        /// null as the render item is generated later, from USDStageObject::UpdatePerNodeItems().
+        MaxSDK::Graphics::RenderItemHandleDecorator renderItem;
+        /// Render item when selection highlighting. Important : both render items are not meant to
+        /// be used at the same time. The selectionRenderItem is able to render everything : the
+        /// geometry AND the highlighting. We use a custom render item, and there is some
+        /// performance overhead vs GeometryRenderItemHandle so we only use it when needed.
+        MaxSDK::Graphics::RenderItemHandleDecorator selectionRenderItem;
+        /// The render geometry. MaxRenderGeometryFacade wraps either a SimpleRenderGeometry or
+        /// InstanceRenderGeometry.
+        std::shared_ptr<MaxRenderGeometryFacade> geometry;
+        /// UsdPreviewSurface material data. Null if no material is bound.
+        HdMaxMaterialCollection::MaterialDataPtr materialData;
+        // Indices belonging to this subset.
+        pxr::VtVec3iArray indices;
+        // Wireframe indices belonging to this subset.
+        pxr::VtIntArray wireIndices;
+        // Dirty state. Allows us to know what needs to be update in the nitrous representation of
+        // the prim (either in it's own render item, or within a consolidated mesh)
+        pxr::HdDirtyBits dirtyBits = HdMaxChangeTracker::Clean;
+        /// Flag to keep track of whether the render data is currently part of a consolidated mesh.
+        /// Kept here for performance reasons, it allows us to know faster, without map lookups.
+        bool inConsolidation = false;
+
+        /**
+         * \brief Helper to retrieve the right render item, depending on if we need to show selection or not.
+         * Either returning a geometry render item, or a custom render item for selection.
+         * \param selected True if we need to show selection.
+         * \return The render item.
+         */
+        MaxSDK::Graphics::RenderItemHandleDecorator& GetRenderItemDecorator(bool selected);
+
+        /**
+         * \brief Returns true if the render subset is instanced.
+         * \return True if instanced.
+         */
+        bool IsInstanced() const;
+    };
+
+    // Note : If no UsdGeomSubsets are defined, this vector will contain a single "default" subset,
+    // containing the entirety of the mesh.
+    std::vector<SubsetRenderData> shadedSubsets;
+    // Render data for the wireframe render item. Treat the whole mesh as a single subset containing
+    // everything.
+    SubsetRenderData wireframe;
+
+    // Subset render data that is no longer in use and should be deleted at the next opportunity on
+    // the main thread. Indeed, it is not safe to destroy render items outside of the main thread.
+    std::vector<SubsetRenderData> toDelete;
+    // Nitrous material for the display color. Keep one for regular meshes and a separate one for
+    // instanced meshes, this is a workaround for an issue with the instancing API which can break
+    // the material if shared with non-instanced meshes.
+    MaxSDK::Graphics::StandardMaterialHandle displayColorNitrousHandle;
+    MaxSDK::Graphics::StandardMaterialHandle instanceDisplayColorNitrousHandle;
+
+    // The offset transform for the render items (world space). Not used if instanced, see
+    // instanceTransforms.
+    pxr::GfMatrix4d transform;
+    // Extent of the prim.
+    pxr::GfRange3d extent;
+    // The total bounding box of the render data. Can be used for culling (transformed and all
+    // instances)
+    pxr::GfBBox3d boundingBox;
+
+    // Handles instancing data if the prim is instanced.
+    // In Max 2023, instancing related objects are all move and copy constructible, but not in 2022.
+    // Use pointer to keep the class move-constructible.
+    std::shared_ptr<HdMaxInstanceGen> instancer = std::make_shared<HdMaxInstanceGen>();
+
+    // Geometry data used in the viewport, ready to be loaded in nitrous buffers.
+    pxr::VtVec3fArray points;
+    pxr::VtVec3fArray normals;
+    pxr::VtVec3fArray colors;
+
+    std::vector<MaxUsd::MeshUtils::UvChannel> uvs;
+    // Map material to associated diffuseColor uv primvar
+    pxr::TfHashMap<pxr::SdfPath, std::string, pxr::SdfPath::Hash> materialDiffuseColorUvPrimvars;
+
+    // True if the prim is selected, and should be highlighted in VP.
+    bool selected = false;
+
+    // The source mesh's topology.
+    pxr::HdMeshTopology sourceTopology;
+
+    // Source data statistics :
+    size_t sourceNumPoints = 0;
+    size_t sourceNumFaces = 0;
+
+    /**
+     * \brief Loads the geometry data in the render item's geometry. Creating or updating the
+     * index and vertex buffers as needed (only "dirty" things are loaded).
+     * \param force If true, the geometry is loaded regardless of the dirty state.
+     */
+    void UpdateRenderGeometry(bool fullReload);
+
+    /**
+     * \brief Dirty all shaded subsets with the given dirty flag. Method is for convenience,
+     * dirtiness is maintained per-subset, but we often need to set all subsets dirty with
+     * the same bits.
+     * \param dirtyFlag The dirty bits to set onto all shaded subsets.
+     */
+    void SetAllSubsetRenderDataDirty(const pxr::HdDirtyBits& dirtyFlag);
+
+    /**
+     * \brief Resolves the final material that should be used in the viewport for this prim's subset.
+     * \param subsetGeometry The subset to resolve the material for.
+     * \param displaySettings Display settings to use.
+     * \param instanced Is this for instanced geometry (we cant share the same material between instanced and non instanced).
+     * \return The resolved material.
+     */
+    MaxSDK::Graphics::BaseMaterialHandle ResolveViewportMaterial(
+        const SubsetRenderData&     subsetGeometry,
+        const HdMaxDisplaySettings& displaySettings,
+        bool                        instanced) const;
+
+    /**
+     * \brief Returns the USD display color material handle for this prim render data.
+     * \param instanced Is this for instanced geometry (we cant share the same material between instanced and non instanced).
+     * \return The display color material handle.
+     */
+    MaxSDK::Graphics::BaseMaterialHandle GetDisplayColorNitrousHandle(bool instanced) const;
+
+    /**
+     * \brief Returns the required streams to render USD content in Nitrous.
+     * \param wire If true, return the streams required for the wireframe view, otherwise, the streams for the shaded
+     * view are returned
+     * \return The material required streams.
+     */
+    static MaxSDK::Graphics::MaterialRequiredStreams GetRequiredStreams(bool wire);
+
+    /**
+     * \brief Returns true if the first shaded subset is instanced - if so, it is expected that all associated render
+     * items will be instanced.
+     * \return True if instanced.
+     */
+    bool IsInstanced() const;
+};
+
+static_assert(
+    std::is_move_constructible<HdMaxRenderData>::value,
+    "HdMaxRenderData should be move constructible.");
+static_assert(
+    std::is_move_constructible<HdMaxRenderData::SubsetRenderData>::value,
+    "HdMaxRenderData should be move constructible.");
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxExtComputation.cpp b/src/RenderDelegate/Imaging/HdMaxExtComputation.cpp
new file mode 100644
index 0000000..3fc1ce1
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxExtComputation.cpp
@@ -0,0 +1,63 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxExtComputation.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+HdMaxExtComputation::HdMaxExtComputation(pxr::SdfPath const& id)
+    : HdExtComputation(id)
+{
+}
+
+void HdMaxExtComputation::Sync(
+    pxr::HdSceneDelegate* sceneDelegate,
+    pxr::HdRenderParam*   renderParam,
+    pxr::HdDirtyBits*     dirtyBits)
+{
+    HD_TRACE_FUNCTION();
+    HF_MALLOC_TAG_FUNCTION();
+
+    HdExtComputation::_Sync(sceneDelegate, renderParam, dirtyBits);
+
+    TF_DEBUG(pxr::HD_EXT_COMPUTATION_UPDATED)
+        .Msg(
+            "HdMaxExtComputation::Sync for %s (dirty bits = 0x%x)\n",
+            GetId().GetText(),
+            *dirtyBits);
+
+    if (!(*dirtyBits & DirtySceneInput)) {
+        // No scene inputs to sync. All other computation dirty bits (barring
+        // DirtyCompInput) are sync'd in HdExtComputation::_Sync.
+        return;
+    }
+
+    // Force pre-compute of "joint world inverse bind" transforms to work around USD concurrency
+    // issue, see https://github.com/PixarAnimationStudios/USD/issues/1742
+
+    // The "joint world inverse bind" transforms are not time dependant, so we only need to
+    // force-compute them once.
+    if (!_computeJointWorldInverseBindTransforms) {
+        return;
+    }
+
+    for (pxr::TfToken const& inputName : GetSceneInputNames()) {
+        sceneDelegate->GetExtComputationInput(GetId(), inputName);
+    }
+
+    _computeJointWorldInverseBindTransforms = false;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxExtComputation.h b/src/RenderDelegate/Imaging/HdMaxExtComputation.h
new file mode 100644
index 0000000..ae718ff
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxExtComputation.h
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <pxr/imaging/hd/extComputation.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// Simple derived class from HdExtComputation - we only need this to work around
+// a concurrency issue in USD.
+// See https://github.com/PixarAnimationStudios/USD/issues/1742
+// The idea is to force pre-computation of the skinning transforms instead of
+// having them lazily computed from HdMaxMesh::Sync(). Indeed, Sprims are sync'ed
+// serially - so the call is safe here.
+class HdMaxExtComputation : public pxr::HdExtComputation
+{
+public:
+    HdMaxExtComputation(pxr::SdfPath const& id);
+
+    ~HdMaxExtComputation() override = default;
+
+    void Sync(
+        pxr::HdSceneDelegate* sceneDelegate,
+        pxr::HdRenderParam*   renderParam,
+        pxr::HdDirtyBits*     dirtyBits) override;
+
+private:
+    bool _computeJointWorldInverseBindTransforms = true;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxInstancer.cpp b/src/RenderDelegate/Imaging/HdMaxInstancer.cpp
new file mode 100644
index 0000000..f9332af
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxInstancer.cpp
@@ -0,0 +1,246 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#include "HdMaxInstancer.h"
+
+#include <RenderDelegate/Sampler.h>
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/quaternion.h>
+#include <pxr/base/gf/rotation.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/imaging/hd/sceneDelegate.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// in 2025, we moved to Pixar 23.11 and the tokens changed in that release:
+// https://forum.aousd.org/t/hydra-synthesized-instancer-primvars-renamed-in-release-23-11/797
+#ifdef IS_MAX2025_OR_GREATER
+const auto instanceTransformsToken = HdInstancerTokens->instanceTransforms;
+const auto instanceRotationsToken = HdInstancerTokens->instanceRotations;
+const auto instanceScalesToken = HdInstancerTokens->instanceScales;
+const auto instanceTranslationsToken = HdInstancerTokens->instanceTranslations;
+#else
+const auto instanceTransformsToken = HdInstancerTokens->instanceTransform;
+const auto instanceRotationsToken = HdInstancerTokens->rotate;
+const auto instanceScalesToken = HdInstancerTokens->scale;
+const auto instanceTranslationsToken = HdInstancerTokens->translate;
+#endif
+
+/*! \brief  Constructor.
+
+    \param delegate     The scene delegate backing this instancer's data.
+    \param id           The unique id of this instancer.
+    \param parentId     The unique id of the parent instancer,
+                        or an empty id if not applicable.
+*/
+HdMaxInstancer::HdMaxInstancer(HdSceneDelegate* delegate, SdfPath const& id)
+    : HdInstancer(delegate, id)
+{
+}
+
+/*! \brief  Destructor.
+ */
+HdMaxInstancer::~HdMaxInstancer()
+{
+    TF_FOR_ALL(it, _primvarMap) { delete it->second; }
+    _primvarMap.clear();
+}
+
+/*! \brief  Checks the change tracker to determine whether instance primvars are
+            dirty, and if so pulls them.
+
+    Since primvars can only be pulled once, and are cached, this function is not
+    re-entrant. However, this function is called by ComputeInstanceTransforms,
+    which is called by HdMaxMesh::Sync(), which is dispatched in parallel, so it needs
+    to be guarded by _instanceLock.
+*/
+void HdMaxInstancer::_SyncPrimvars()
+{
+    HD_TRACE_FUNCTION();
+    HF_MALLOC_TAG_FUNCTION();
+
+    HdChangeTracker& changeTracker = GetDelegate()->GetRenderIndex().GetChangeTracker();
+    SdfPath const&   id = GetId();
+
+    // Use the double-checked locking pattern to check if this instancer's
+    // primvars are dirty.
+    HdDirtyBits dirtyBits = changeTracker.GetInstancerDirtyBits(id);
+    if (HdChangeTracker::IsAnyPrimvarDirty(dirtyBits, id)
+        || HdChangeTracker::IsInstancerDirty(dirtyBits, id)
+        || HdChangeTracker::IsInstanceIndexDirty(dirtyBits, id)) {
+        std::lock_guard<std::mutex> lock(_instanceLock);
+
+        // If not dirty, then another thread did the job
+        dirtyBits = changeTracker.GetInstancerDirtyBits(id);
+
+#if defined(HD_API_VERSION) && HD_API_VERSION >= 36
+        _UpdateInstancer(GetDelegate(), &dirtyBits);
+#endif
+
+        if (HdChangeTracker::IsAnyPrimvarDirty(dirtyBits, id)) {
+
+            // If this instancer has dirty primvars, get the list of
+            // primvar names and then cache each one.
+
+            TfTokenVector             primvarNames;
+            HdPrimvarDescriptorVector primvars
+                = GetDelegate()->GetPrimvarDescriptors(id, HdInterpolationInstance);
+
+            for (HdPrimvarDescriptor const& pv : primvars) {
+                if (HdChangeTracker::IsPrimvarDirty(dirtyBits, id, pv.name)) {
+                    VtValue value = GetDelegate()->Get(id, pv.name);
+                    if (!value.IsEmpty()) {
+                        if (_primvarMap.count(pv.name) > 0) {
+                            delete _primvarMap[pv.name];
+                        }
+                        _primvarMap[pv.name] = new HdVtBufferSource(pv.name, value);
+                    }
+                }
+            }
+        }
+
+        // Mark the instancer as clean
+        changeTracker.MarkInstancerClean(id);
+    }
+}
+
+/*! \brief  Computes all instance transforms for the provided prototype id.
+
+    Taking into account the scene delegate's instancerTransform and the
+    instance primvars "instanceTransform", "translate", "rotate", "scale".
+    Computes and flattens nested transforms, if necessary.
+
+    \param prototypeId The prototype to compute transforms for.
+
+    \return One transform per instance, to apply when drawing.
+*/
+VtMatrix4dArray HdMaxInstancer::ComputeInstanceTransforms(SdfPath const& prototypeId)
+{
+    HD_TRACE_FUNCTION();
+    HF_MALLOC_TAG_FUNCTION();
+
+    _SyncPrimvars();
+
+    // The transforms for this level of instancer are computed by:
+    // foreach(index : indices) {
+    //     instancerTransform * translate(index) * rotate(index) *
+    //     scale(index) * instanceTransform(index)
+    // }
+    // If any transform isn't provided, it's assumed to be the identity.
+
+    GfMatrix4d instancerTransform = GetDelegate()->GetInstancerTransform(GetId());
+    VtIntArray instanceIndices = GetDelegate()->GetInstanceIndices(GetId(), prototypeId);
+
+    VtMatrix4dArray transforms(instanceIndices.size());
+    for (size_t i = 0; i < instanceIndices.size(); ++i) {
+        transforms[i] = instancerTransform;
+    }
+
+    // "instanceTranslationsToken" holds a translation vector for each index.
+    if (_primvarMap.count(instanceTranslationsToken) > 0) {
+        HdMaxBufferSampler sampler(*_primvarMap[instanceTranslationsToken]);
+        for (size_t i = 0; i < instanceIndices.size(); ++i) {
+            GfVec3f translate;
+            if (sampler.Sample(instanceIndices[i], &translate)) {
+                GfMatrix4d translateMat(1);
+                translateMat.SetTranslate(GfVec3d(translate));
+                transforms[i] = translateMat * transforms[i];
+            }
+        }
+    }
+
+    // "instanceRotationsToken" holds a quaternion in <real, i, j, k> format for each index.
+    if (_primvarMap.count(instanceRotationsToken) > 0) {
+        HdMaxBufferSampler sampler(*_primvarMap[instanceRotationsToken]);
+        for (size_t i = 0; i < instanceIndices.size(); ++i) {
+            GfQuath quath;
+            if (sampler.Sample(instanceIndices[i], &quath)) {
+                GfMatrix4d rotateMat(1);
+                rotateMat.SetRotate(quath);
+                transforms[i] = rotateMat * transforms[i];
+            } else {
+                GfVec4f quat;
+                if (sampler.Sample(instanceIndices[i], &quat)) {
+                    GfMatrix4d rotateMat(1);
+                    rotateMat.SetRotate(GfQuatd(quat[0], quat[1], quat[2], quat[3]));
+                    transforms[i] = rotateMat * transforms[i];
+                }
+            }
+        }
+    }
+
+    // "instanceScalesToken" holds an axis-aligned scale vector for each index.
+    if (_primvarMap.count(instanceScalesToken) > 0) {
+        HdMaxBufferSampler sampler(*_primvarMap[instanceScalesToken]);
+        for (size_t i = 0; i < instanceIndices.size(); ++i) {
+            GfVec3f scale;
+            if (sampler.Sample(instanceIndices[i], &scale)) {
+                GfMatrix4d scaleMat(1);
+                scaleMat.SetScale(GfVec3d(scale));
+                transforms[i] = scaleMat * transforms[i];
+            }
+        }
+    }
+
+    // "instanceTransformsToken" holds a 4x4 transform matrix for each index.
+    if (_primvarMap.count(instanceTransformsToken) > 0) {
+        HdMaxBufferSampler sampler(*_primvarMap[instanceTransformsToken]);
+        for (size_t i = 0; i < instanceIndices.size(); ++i) {
+            GfMatrix4d instanceTransform;
+            if (sampler.Sample(instanceIndices[i], &instanceTransform)) {
+                transforms[i] = instanceTransform * transforms[i];
+            }
+        }
+    }
+
+    if (GetParentId().IsEmpty()) {
+        return transforms;
+    }
+
+    HdInstancer* parentInstancer = GetDelegate()->GetRenderIndex().GetInstancer(GetParentId());
+    if (!TF_VERIFY(parentInstancer)) {
+        return transforms;
+    }
+
+    // The transforms taking nesting into account are computed by:
+    // parentTransforms = parentInstancer->ComputeInstanceTransforms(GetId())
+    // foreach (parentXf : parentTransforms, xf : transforms) {
+    //     parentXf * xf
+    // }
+    VtMatrix4dArray parentTransforms
+        = static_cast<HdMaxInstancer*>(parentInstancer)->ComputeInstanceTransforms(GetId());
+
+    VtMatrix4dArray final(parentTransforms.size() * transforms.size());
+    for (size_t i = 0; i < parentTransforms.size(); ++i) {
+        for (size_t j = 0; j < transforms.size(); ++j) {
+            final[i * transforms.size() + j] = transforms[j] * parentTransforms[i];
+        }
+    }
+    return final;
+}
+
+HdDirtyBits HdMaxInstancer::GetInitialDirtyBitsMask() const
+{
+    return HdChangeTracker::DirtyPrimvar | HdChangeTracker::DirtyTransform
+        | HdChangeTracker::DirtyInstanceIndex | HdChangeTracker::DirtyInstancer;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxInstancer.h b/src/RenderDelegate/Imaging/HdMaxInstancer.h
new file mode 100644
index 0000000..b3d7626
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxInstancer.h
@@ -0,0 +1,57 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+
+#include <pxr/base/tf/hashmap.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/imaging/hd/instancer.h>
+#include <pxr/imaging/hd/vtBufferSource.h>
+#include <pxr/pxr.h>
+
+#include <mutex>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/*! \brief  3dsMax/Nitrous instancing of prototype geometry with varying transforms
+    Nested instancing can be handled by recursion, and by taking the
+    cartesian product of the transform arrays at each nesting level, to
+    create a flattened transform array.
+*/
+class HdMaxInstancer final : public HdInstancer
+{
+public:
+    HdMaxInstancer(HdSceneDelegate* delegate, SdfPath const& id);
+    ~HdMaxInstancer();
+
+    VtMatrix4dArray ComputeInstanceTransforms(SdfPath const& prototypeId);
+
+    HdDirtyBits GetInitialDirtyBitsMask() const override;
+
+private:
+    void _SyncPrimvars();
+
+    //! Mutex guard for _SyncPrimvars().
+    std::mutex _instanceLock;
+
+    /*! Map of the latest primvar data for this instancer, keyed by
+        primvar name. Primvar values are VtValue, an any-type; they are
+        interpreted at consumption time (here, in ComputeInstanceTransforms).
+    */
+    TfHashMap<TfToken, HdVtBufferSource*, TfToken::HashFunctor> _primvarMap;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxMaterial.cpp b/src/RenderDelegate/Imaging/HdMaxMaterial.cpp
new file mode 100644
index 0000000..6c0bb59
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxMaterial.cpp
@@ -0,0 +1,60 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxMaterial.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+HdMaxMaterial::~HdMaxMaterial()
+{
+    auto materialCollection = renderDelegate->GetMaterialCollection();
+    // Hydra prims are destroyed on the main thread.
+    materialCollection->RemoveMaterial(GetId());
+}
+
+void HdMaxMaterial::Sync(
+    pxr::HdSceneDelegate* sceneDelegate,
+    pxr::HdRenderParam*,
+    pxr::HdDirtyBits* dirtyBits)
+{
+    if (*dirtyBits & (HdMaterial::DirtyResource | HdMaterial::DirtyParams)) {
+        // Update the material.
+        auto materialCollection = renderDelegate->GetMaterialCollection();
+        materialCollection->UpdateMaterial(sceneDelegate, GetId());
+
+        // Notify subscribed rPrims.
+        std::lock_guard<std::mutex> lock(materialSubscriptionsMutex);
+        HdChangeTracker& changeTracker = sceneDelegate->GetRenderIndex().GetChangeTracker();
+        for (const SdfPath& rprimId : materialSubscriptions) {
+            changeTracker.MarkRprimDirty(rprimId, HdChangeTracker::DirtyMaterialId);
+        }
+    }
+    *dirtyBits = HdMaterial::Clean;
+}
+
+HdDirtyBits HdMaxMaterial::GetInitialDirtyBitsMask() const { return HdMaterial::AllDirty; }
+
+void HdMaxMaterial::SubscribeForMaterialUpdates(const SdfPath& rprimId)
+{
+    std::lock_guard<std::mutex> lock(materialSubscriptionsMutex);
+    materialSubscriptions.insert(rprimId);
+}
+
+void HdMaxMaterial::UnsubscribeFromMaterialUpdates(const SdfPath& rprimId)
+{
+    std::lock_guard<std::mutex> lock(materialSubscriptionsMutex);
+    materialSubscriptions.erase(rprimId);
+}
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxMaterial.h b/src/RenderDelegate/Imaging/HdMaxMaterial.h
new file mode 100644
index 0000000..229e842
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxMaterial.h
@@ -0,0 +1,77 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "HdMaxRenderDelegate.h"
+
+#include <pxr\imaging\hd\material.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class HdMaxMaterial : public pxr::HdMaterial
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param delegate The render delegate.
+     * \param id The material's path.
+     */
+    HdMaxMaterial(HdMaxRenderDelegate* delegate, const pxr::SdfPath& id)
+        : HdMaterial(id)
+        , renderDelegate { delegate }
+    {
+    }
+
+    /**
+     * Destructor.
+     */
+    ~HdMaxMaterial();
+
+    /**
+     * \brief Synchronize any changes to the material, with the 3dsMax representations. The actual 3dsMax
+     * materials are built later, on the main thead.
+     * \param sceneDelegate The scene delegate.
+     * \param dirtyBits The material's dirty bits.
+     */
+    void Sync(
+        pxr::HdSceneDelegate* sceneDelegate,
+        pxr::HdRenderParam* /*renderParam*/,
+        pxr::HdDirtyBits* dirtyBits) override;
+
+    /**
+     * \brief Returns the initial dirty bits.
+     * \return The dirty bits.
+     */
+    pxr::HdDirtyBits GetInitialDirtyBitsMask() const override;
+
+    /**
+     * \brief Subscribes a rPrim so it can be notified when the material changes.
+     * \param rprimId The path of the rPrim to subscribe.
+     */
+    void SubscribeForMaterialUpdates(const SdfPath& rprimId);
+
+    /**
+     * \brief Unsubscribes a rPrim to stop it being notified when the material changes.
+     * \param rprimId The path of the rPrim to unsubscribe.
+     */
+    void UnsubscribeFromMaterialUpdates(const SdfPath& rprimId);
+
+private:
+    HdMaxRenderDelegate* renderDelegate;
+    std::mutex           materialSubscriptionsMutex;
+    std::set<SdfPath>    materialSubscriptions;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxMesh.cpp b/src/RenderDelegate/Imaging/HdMaxMesh.cpp
new file mode 100644
index 0000000..89079ee
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxMesh.cpp
@@ -0,0 +1,1447 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxMesh.h"
+
+#include "HdMaxInstancer.h"
+#include "HdMaxMaterial.h"
+#include "HdMaxRenderDelegate.h"
+
+#include <RenderDelegate/DebugCodes.h>
+#include <RenderDelegate/HdMaxColorMaterial.h>
+#include <RenderDelegate/HdMaxDisplaySettings.h>
+#include <RenderDelegate/MaxRenderGeometryFacade.h>
+#include <RenderDelegate/SelectionRenderItem.h>
+
+#include <MaxUsd/Utilities/MaterialUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+#include <Maxusd/Utilities/TranslationUtils.h>
+
+#include <pxr/imaging/hd/extComputationUtils.h>
+#include <pxr/imaging/hd/material.h>
+#include <pxr/imaging/hd/mesh.h>
+#include <pxr/imaging/hd/meshTopology.h>
+#include <pxr/imaging/hd/meshUtil.h>
+#include <pxr/imaging/hd/smoothNormals.h>
+#include <pxr/imaging/hd/vertexAdjacency.h>
+
+#include <Graphics/CustomRenderItemHandle.h>
+#include <Graphics/GeometryRenderItemHandle.h>
+#include <Graphics/IConsolidationStrategy.h>
+#include <Graphics/IVirtualDevice.h>
+#include <Graphics/RenderItemHandleDecorator.h>
+#include <Graphics/SimpleRenderGeometry.h>
+#include <Graphics/StandardMaterialHandle.h>
+#ifdef USD_VERSION_23_08
+#include <pxr/imaging/hdSt/extCompCpuComputation.h>
+#include <pxr/imaging/hdSt/extCompPrimvarBufferSource.h>
+#else
+#include <pxr/imaging/hd/extCompCpuComputation.h>
+#include <pxr/imaging/hd/extCompPrimvarBufferSource.h>
+#endif
+#include <pxr/imaging/hd/extComputation.h>
+
+#include <mutex>
+
+// Hydra rendering is heavily multi-threaded. The Sync() method below is called from many threads -
+// some calls related to the 3dsMax SDK, and the Graphics APIs must be protected with mutexes. Note
+// that the Sync() function is reentrant, i.e. in some scenarios we can reenter this function on the
+// same thread before exiting the first invocation - therefore we must use recursive mutexes, which
+// allow this.
+namespace {
+std::recursive_mutex maxSdkMutex;
+} // namespace
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// Moved some classes in 23.08.
+#ifdef USD_VERSION_23_08
+typedef HdStExtCompCpuComputationSharedPtr ExtCompCpuComputationSharedPtr;
+typedef HdStExtCompCpuComputation          ExtCompCpuComputation;
+typedef HdStExtCompPrimvarBufferSource     ExtCompPrimvarBufferSource;
+#else
+typedef HdExtCompCpuComputationSharedPtr ExtCompCpuComputationSharedPtr;
+typedef HdExtCompCpuComputation          ExtCompCpuComputation;
+typedef HdExtCompPrimvarBufferSource     ExtCompPrimvarBufferSource;
+#endif
+
+HdMaxMesh::HdMaxMesh(HdMaxRenderDelegate* delegate, SdfPath const& rPrimId, size_t renderDataId)
+    : HdMesh(rPrimId)
+    , renderDelegate(delegate)
+{
+}
+
+HdDirtyBits HdMaxMesh::GetInitialDirtyBitsMask() const
+{
+    return HdChangeTracker::InitRepr | HdChangeTracker::DirtyCullStyle
+        | HdChangeTracker::DirtyDoubleSided | HdChangeTracker::DirtyExtent
+        | HdChangeTracker::DirtyNormals | HdChangeTracker::DirtyPoints
+        | HdChangeTracker::DirtyPrimID | HdChangeTracker::DirtyPrimvar
+        | HdChangeTracker::DirtyDisplayStyle | HdChangeTracker::DirtyRepr
+        | HdChangeTracker::DirtyMaterialId | HdChangeTracker::DirtyTopology
+        | HdChangeTracker::DirtyTransform | HdChangeTracker::DirtyVisibility
+        | HdChangeTracker::DirtyInstancer | HdChangeTracker::DirtyInstanceIndex
+        | HdChangeTracker::CustomBitsBegin;
+}
+
+PrimvarInfo* _GetPrimvarInfo(const PrimvarInfoMap& infoMap, const TfToken& token)
+{
+    const auto it = infoMap.find(token);
+    if (it != infoMap.end()) {
+        return it->second.get();
+    }
+    return nullptr;
+}
+
+bool _IsSharedVertexLayoutPossible(const PrimvarInfoMap& primvarInfo)
+{
+    for (const auto& it : primvarInfo) {
+        const HdInterpolation interpolation = it.second->source.interpolation;
+        if (interpolation == HdInterpolationUniform
+            || interpolation == HdInterpolationFaceVarying) {
+            return false;
+        }
+    }
+    return true;
+}
+
+void HdMaxMesh::_UpdatePrimvarSources(
+    HdSceneDelegate*     sceneDelegate,
+    HdDirtyBits          dirtyBits,
+    const TfTokenVector& requiredPrimvars)
+{
+    if (requiredPrimvars.empty()) {
+        return;
+    }
+
+    const SdfPath& id = GetId();
+
+    auto updatePrimvarInfo
+        = [&](const TfToken& name, const VtValue& value, const HdInterpolation interpolation) {
+              PrimvarInfo* info = _GetPrimvarInfo(primvarInfoMap, name);
+              if (info) {
+                  info->source.data = value;
+                  info->source.interpolation = interpolation;
+              } else {
+                  primvarInfoMap[name]
+                      = std::make_unique<PrimvarInfo>(PrimvarSource(value, interpolation));
+              }
+          };
+
+    const TfTokenVector::const_iterator begin = requiredPrimvars.cbegin();
+    const TfTokenVector::const_iterator end = requiredPrimvars.cend();
+
+    // Inspired by HdStInstancer::_SyncPrimvars
+    //
+    // Get any required instanced primvars from the instancer. Get these before we get
+    // any rprims primvars from the rprim itself. If both are present, the rprim's values override
+    // the instancer's value.
+    const SdfPath& instancerId = GetInstancerId();
+    if (!instancerId.IsEmpty()) {
+        HdPrimvarDescriptorVector instancerPrimvars
+            = sceneDelegate->GetPrimvarDescriptors(instancerId, HdInterpolationInstance);
+        for (const HdPrimvarDescriptor& pv : instancerPrimvars) {
+            if (std::find(begin, end, pv.name) == end) {
+                // Erase the unused primvar so we don't hold onto stale data.
+                primvarInfoMap.erase(pv.name);
+            } else {
+                if (HdChangeTracker::IsPrimvarDirty(dirtyBits, instancerId, pv.name)) {
+                    const VtValue value = sceneDelegate->Get(instancerId, pv.name);
+                    updatePrimvarInfo(pv.name, value, HdInterpolationInstance);
+                }
+            }
+        }
+    }
+
+    for (size_t i = 0; i < HdInterpolationCount; i++) {
+        const HdInterpolation           interp = static_cast<HdInterpolation>(i);
+        const HdPrimvarDescriptorVector primvars = GetPrimvarDescriptors(sceneDelegate, interp);
+
+        for (const HdPrimvarDescriptor& pv : primvars) {
+            if (std::find(begin, end, pv.name) == end) {
+                // Erase the unused primvar so we don't hold onto stale data.
+                primvarInfoMap.erase(pv.name);
+            } else {
+                if (HdChangeTracker::IsPrimvarDirty(dirtyBits, id, pv.name)) {
+                    const VtValue value = GetPrimvar(sceneDelegate, pv.name);
+                    updatePrimvarInfo(pv.name, value, interp);
+                }
+            }
+        }
+    }
+
+    // Get the descriptors of computed primvars.
+    HdExtComputationPrimvarDescriptorVector computedPrimvars
+        = sceneDelegate->GetExtComputationPrimvarDescriptors(id, HdInterpolationVertex);
+    const HdRenderIndex& renderIndex = sceneDelegate->GetRenderIndex();
+
+    // At this point we've searched the primvars for the required primvars.
+    // check to see if there are any HdExtComputation which should replace
+    // of fill in for a missing primvar.
+    for (const auto& primvarName : requiredPrimvars) {
+        // Check if the primvar must be computed.
+        auto result = std::find_if(
+            computedPrimvars.begin(), computedPrimvars.end(), [&](const auto& compPrimvar) {
+                return compPrimvar.name == primvarName;
+            });
+        if (result == computedPrimvars.end()) {
+            continue;
+        }
+
+        HdExtComputationPrimvarDescriptor compPrimvar = *result;
+        // Create the HdExtCompCpuComputation objects necessary to resolve the computation.
+        HdExtComputation const* sourceComp
+            = static_cast<HdExtComputation const*>(renderIndex.GetSprim(
+                HdPrimTypeTokens->extComputation, compPrimvar.sourceComputationId));
+        if (!sourceComp || sourceComp->GetElementCount() <= 0) {
+            continue;
+        }
+
+        // This primvar must be computed.
+        // The compPrimvar has the Id of the compute the data comes from, and the output
+        // of the compute which contains the data.
+
+        ExtCompCpuComputationSharedPtr cpuComputation;
+        HdBufferSourceSharedPtrVector  sources;
+        cpuComputation
+            = ExtCompCpuComputation::CreateComputation(sceneDelegate, *sourceComp, &sources);
+
+        // The last thing in source is the resolve of the computation that is our points.
+        HdBufferSourceSharedPtr pointsSource(new ExtCompPrimvarBufferSource(
+            compPrimvar.name,
+            cpuComputation,
+            compPrimvar.sourceComputationOutputName,
+            compPrimvar.valueType));
+
+        sources.push_back(pointsSource);
+
+        // Resolve the computation.
+        for (HdBufferSourceSharedPtr& source : sources) {
+            source->Resolve();
+        }
+
+        const GfVec3f* points = static_cast<const GfVec3f*>(pointsSource->GetData());
+        VtVec3fArray   vtPoints;
+        vtPoints.resize(pointsSource->GetNumElements());
+        std::copy(points, points + pointsSource->GetNumElements(), vtPoints.data());
+        updatePrimvarInfo(primvarName, VtValue(vtPoints), HdInterpolationVertex);
+    }
+}
+
+// Helper utility function to fill some primvar data to a vertex buffer.
+template <class DEST_TYPE, class SRC_TYPE>
+void _FillPrimvarData(
+    DEST_TYPE*               vertexBuffer,
+    size_t                   numVertices,
+    const VtIntArray&        renderingToSceneFaceVtxIds,
+    const pxr::SdfPath&      rprimId,
+    const HdMeshTopology&    topology,
+    const TfToken&           primvarName,
+    const VtArray<SRC_TYPE>& primvarData,
+    const HdInterpolation&   primvarInterpolation)
+{
+    switch (primvarInterpolation) {
+    case HdInterpolationConstant:
+        // Same value at every vertex.
+        for (size_t v = 0; v < numVertices; ++v) {
+            SRC_TYPE* pointer = reinterpret_cast<SRC_TYPE*>(&vertexBuffer[v]);
+            *pointer = primvarData[0];
+        }
+        break;
+    case HdInterpolationVarying:
+    case HdInterpolationVertex:
+        // One value per vertex.
+        if (numVertices <= renderingToSceneFaceVtxIds.size()) {
+            const size_t dataSize = primvarData.size();
+            for (size_t v = 0; v < numVertices; ++v) {
+                unsigned int index = renderingToSceneFaceVtxIds[v];
+                if (index < dataSize) {
+                    SRC_TYPE* pointer = reinterpret_cast<SRC_TYPE*>(&vertexBuffer[v]);
+                    *pointer = primvarData[index];
+                } else {
+                    TF_DEBUG(HDMAX_DEBUG_MESH)
+                        .Msg(
+                            "Invalid Hydra prim '%s': "
+                            "primvar %s has %u elements, while its topology "
+                            "references face vertex index %u.\n",
+                            rprimId.GetString(),
+                            primvarName.GetText(),
+                            dataSize,
+                            index);
+                }
+            }
+        } else {
+            TF_CODING_ERROR(
+                "Invalid Hydra prim '%s': "
+                "requires %zu vertices, while the number of elements in "
+                "renderingToSceneFaceVtxIds is %zu. Skipping primvar update.",
+                rprimId.GetString(),
+                numVertices,
+                renderingToSceneFaceVtxIds.size());
+
+            memset(vertexBuffer, 0, sizeof(DEST_TYPE) * numVertices);
+        }
+        break;
+    case HdInterpolationUniform: {
+        // One value per face.
+        const VtIntArray& faceVertexCounts = topology.GetFaceVertexCounts();
+        const size_t      numFaces = faceVertexCounts.size();
+        if (numFaces <= primvarData.size()) {
+            // The primvar has more data than needed, we issue a warning but
+            // don't skip update. Truncate the buffer to the expected length.
+            if (numFaces < primvarData.size()) {
+                TF_DEBUG(HDMAX_DEBUG_MESH)
+                    .Msg(
+                        "Invalid Hydra prim '%s': "
+                        "primvar %s has %zu elements, while its topology "
+                        "references only up to element index %zu.\n",
+                        rprimId.GetString(),
+                        primvarName.GetText(),
+                        primvarData.size(),
+                        numFaces);
+            }
+
+            for (size_t f = 0, v = 0; f < numFaces; ++f) {
+                const size_t faceVertexCount = faceVertexCounts[f];
+                const size_t faceVertexEnd = v + faceVertexCount;
+                for (; v < faceVertexEnd; ++v) {
+                    SRC_TYPE* pointer = reinterpret_cast<SRC_TYPE*>(&vertexBuffer[v]);
+                    *pointer = primvarData[f];
+                }
+            }
+        } else {
+            // The primvar has less data than needed. Issue warning and skip
+            // update like what is done in HdStMesh.
+            TF_DEBUG(HDMAX_DEBUG_MESH)
+                .Msg(
+                    "Invalid Hydra prim '%s': "
+                    "primvar %s has only %zu elements, while its topology expects "
+                    "at least %zu elements. Skipping primvar update.\n",
+                    rprimId.GetString(),
+                    primvarName.GetText(),
+                    primvarData.size(),
+                    numFaces);
+
+            memset(vertexBuffer, 0, sizeof(DEST_TYPE) * numVertices);
+        }
+        break;
+    }
+    case HdInterpolationFaceVarying:
+        // One value per face-vertex.
+
+        // Unshared vertex layout is required for face-varying primvars, so we "flatten"
+        // the data making sure each face vertex has a copy. In this case, the face vertex
+        // indices will be a natural sequence [0-N].
+        for (int i = 0; i < renderingToSceneFaceVtxIds.size(); ++i) {
+            const auto dataSize = primvarData.size();
+            const auto index = renderingToSceneFaceVtxIds[i];
+            if (index <= dataSize) {
+                SRC_TYPE* pointer = reinterpret_cast<SRC_TYPE*>(&vertexBuffer[i]);
+                *pointer = primvarData[renderingToSceneFaceVtxIds[i]];
+            } else {
+                TF_DEBUG(HDMAX_DEBUG_MESH)
+                    .Msg(
+                        "Invalid Hydra prim '%s': "
+                        "primvar %s has %u elements, while its topology "
+                        "references face vertex index %u.\n",
+                        rprimId.GetString(),
+                        primvarName.GetText(),
+                        dataSize,
+                        index);
+            }
+        }
+        break;
+    default:
+        TF_CODING_ERROR(
+            "Invalid Hydra prim '%s': "
+            "unimplemented interpolation %d for primvar %s",
+            rprimId.GetString(),
+            (int)primvarInterpolation,
+            primvarName.GetText());
+        break;
+    }
+}
+
+// Depending on the primvar interpolation used, and the whether or not we can share vertices between
+// faces, we might need to adjust the layout of the data that will end up in the nitrous vertex
+// buffers. For example, for a constant interpolation, we need to set all the values (either for
+// every vertex or every face-vertex if vertices are not shared) to the same thing. On the USD side,
+// the primvar is an array with a single value, but on the Max side, we need to replicate the data.
+void _adjustPrimvarDataLayout(
+    pxr::SdfPath          primId,
+    PrimvarInfo*          info,
+    const TfToken&        primvarName,
+    bool                  sharedVertexLayout,
+    VtVec3fArray&         primvarData,
+    const HdMeshTopology& topology)
+{
+    const VtIntArray& faceVertexIndices = topology.GetFaceVertexIndices();
+    // If an unshared layout is required we need to adjust normals, to get one normals per-face
+    // vertex. If we are using faceVarying interpolation, it is already the case.
+    if (!sharedVertexLayout && info->source.interpolation != HdInterpolationFaceVarying) {
+
+        const size_t numFaceVertexIndices = faceVertexIndices.size();
+        VtVec3fArray unsharedVertexData(numFaceVertexIndices);
+        _FillPrimvarData(
+            unsharedVertexData.data(),
+            numFaceVertexIndices,
+            faceVertexIndices,
+            primId,
+            topology,
+            primvarName,
+            primvarData,
+            info->source.interpolation);
+        primvarData = unsharedVertexData;
+    }
+    // Shared layout and constant interpolation, adjust the buffer so we get the same value for
+    // every vertex.
+    else if (info->source.interpolation == HdInterpolationConstant) {
+        VtVec3fArray constVertexData(topology.GetNumPoints());
+        _FillPrimvarData(
+            constVertexData.data(),
+            topology.GetNumPoints(),
+            faceVertexIndices,
+            primId,
+            topology,
+            primvarName,
+            primvarData,
+            HdInterpolationConstant);
+        primvarData = constVertexData;
+    }
+}
+
+void HdMaxMesh::_LoadPoints(
+    const pxr::SdfPath&   id,
+    HdSceneDelegate*      delegate,
+    const HdMeshTopology& topology)
+{
+    const auto info = _GetPrimvarInfo(primvarInfoMap, HdTokens->points);
+    auto&      renderData = _GetRenderData();
+    auto&      points = renderData.points;
+    if (info && !info->source.data.IsEmpty() && info->source.data.CanCast<pxr::VtVec3fArray>()) {
+        points = info->source.data.UncheckedGet<pxr::VtVec3fArray>();
+    }
+
+    // If there are no vertices available, we are done with this mesh.
+    if (points.empty()) {
+        return;
+    }
+
+    if (!sharedVertexLayout) {
+        const VtIntArray& faceVertexIndices = topology.GetFaceVertexIndices();
+        const size_t      numFaceVertexIndices = faceVertexIndices.size();
+        VtVec3fArray      unsharedPoints(numFaceVertexIndices);
+        _FillPrimvarData(
+            unsharedPoints.data(),
+            numFaceVertexIndices,
+            faceVertexIndices,
+            GetId(),
+            topology,
+            HdTokens->points,
+            points,
+            HdInterpolationFaceVarying);
+        points = unsharedPoints;
+    }
+}
+
+void HdMaxMesh::_LoadNormals(const pxr::SdfPath& id, HdSceneDelegate* delegate)
+{
+    const auto info = _GetPrimvarInfo(primvarInfoMap, HdTokens->normals);
+
+    auto& renderData = _GetRenderData();
+
+    auto& normals = renderData.normals;
+
+    // Are normals explicitly defined?
+    if (info && !info->source.data.IsEmpty() && info->source.data.CanCast<pxr::VtVec3fArray>()) {
+        normals = info->source.data.UncheckedGet<pxr::VtVec3fArray>();
+        _adjustPrimvarDataLayout(
+            id, info, HdTokens->normals, sharedVertexLayout, normals, sourceTopology);
+    }
+    // Otherwise, compute the normals. These are smooth computed normals.
+    else {
+        Hd_VertexAdjacency adjacency;
+        adjacency.BuildAdjacencyTable(&sourceTopology);
+
+        const auto        pointsInfo = _GetPrimvarInfo(primvarInfoMap, HdTokens->points);
+        pxr::VtVec3fArray sourcePoints;
+        if (pointsInfo && !pointsInfo->source.data.IsEmpty()
+            && pointsInfo->source.data.CanCast<pxr::VtVec3fArray>()) {
+            sourcePoints = pointsInfo->source.data.UncheckedGet<pxr::VtVec3fArray>();
+        }
+
+        if (!sourcePoints.empty()) {
+            auto computedNormals = Hd_SmoothNormals::ComputeSmoothNormals(
+                &adjacency, int(sourcePoints.size()), sourcePoints.cdata());
+            // The computed normals above, are vertex normals, if we need an unshared layout, we
+            // need to make sure we have one normal value per face-vertex.
+            if (!sharedVertexLayout) {
+                const VtIntArray& renderingToSceneVertices = sourceTopology.GetFaceVertexIndices();
+                normals.resize(renderData.points.size());
+                for (int i = 0; i < normals.size(); ++i) {
+                    normals[i] = computedNormals[renderingToSceneVertices[i]];
+                }
+            } else {
+                normals = computedNormals;
+            }
+        }
+    }
+}
+
+void HdMaxMesh::_LoadUvs(
+    const pxr::SdfPath&         id,
+    HdSceneDelegate*            delegate,
+    const std::vector<TfToken>& uvPrimvars)
+{
+    auto& renderData = _GetRenderData();
+
+    const auto numUvsChannels = uvPrimvars.size();
+
+    auto fillWithPoints = [this, &renderData](pxr::VtVec3fArray& uvs) {
+        auto& points = renderData.points;
+        uvs.resize(points.size());
+        std::copy(points.begin(), points.end(), uvs.begin());
+    };
+
+    // Guaranty at least one UV channel, to be used as fallback, if none defined.
+    // We need a valid buffer - Use simple planar mapping similar to the usual 3dsmax defaults.
+    if (numUvsChannels == 0) {
+        renderData.uvs.resize(1);
+        fillWithPoints(renderData.uvs[0].data);
+        return;
+    }
+
+    renderData.uvs.resize(numUvsChannels);
+    for (int i = 0; i < numUvsChannels; ++i) {
+        auto& uvs = renderData.uvs[i].data;
+        renderData.uvs[i].varname = uvPrimvars[i];
+
+        const auto info = _GetPrimvarInfo(primvarInfoMap, uvPrimvars[i]);
+        if (!info) {
+            uvs.clear();
+        } else {
+            bool acceptedPrimvarType = true;
+            if (info->source.data.CanCast<pxr::VtVec2fArray>()) {
+                auto& data = info->source.data.UncheckedGet<pxr::VtVec2fArray>();
+                uvs.resize(data.size());
+                for (int i = 0; i < data.size(); ++i) {
+                    uvs[i][0] = data[i][0];
+                    uvs[i][1] = 1 - data[i][1]; // Adjust UV coordinate for Nitrous.
+                    uvs[i][2] = 0;
+                }
+            } else if (info->source.data.CanCast<pxr::VtVec3fArray>()) {
+                uvs = info->source.data.UncheckedGet<pxr::VtVec3fArray>();
+                std::transform(uvs.begin(), uvs.end(), uvs.begin(), [](GfVec3f in) {
+                    return GfVec3f(in[0], -in[1], in[2]);
+                });
+            } else if (info->source.data.CanCast<pxr::VtFloatArray>()) {
+                const auto val = info->source.data.UncheckedGet<pxr::VtFloatArray>();
+                uvs.resize(val.size());
+                for (int idx = 0; idx < uvs.size(); ++idx) {
+                    uvs[idx] = pxr::GfVec3f { val[idx], val[idx], val[idx] };
+                }
+            } else {
+                TF_WARN("Unexpected primvar type.");
+                acceptedPrimvarType = false;
+            }
+
+            if (acceptedPrimvarType) {
+                _adjustPrimvarDataLayout(
+                    id, info, uvPrimvars[i], sharedVertexLayout, uvs, sourceTopology);
+            }
+        }
+
+        // If we need UVs, but get no data, fallback to planar mapping.
+        if (uvs.empty()) {
+            fillWithPoints(uvs);
+        }
+    }
+}
+
+void HdMaxMesh::_LoadDisplayColor(const pxr::SdfPath& id, HdSceneDelegate* delegate)
+{
+    auto&      renderData = _GetRenderData();
+    auto&      displayColors = renderData.colors;
+    const auto info = _GetPrimvarInfo(primvarInfoMap, HdTokens->displayColor);
+    if (info && !info->source.data.IsEmpty() && info->source.data.CanCast<pxr::VtVec3fArray>()) {
+        displayColors = info->source.data.UncheckedGet<pxr::VtVec3fArray>();
+        _adjustPrimvarDataLayout(
+            id, info, HdTokens->displayColor, sharedVertexLayout, displayColors, sourceTopology);
+    }
+}
+
+HdMaxRenderData::SubsetRenderData
+HdMaxMesh::_InitializeSubsetRenderData(const SdfPath& materialId, bool instanced, bool wireframe)
+{
+    std::lock_guard<std::recursive_mutex> maxLock(maxSdkMutex);
+
+    HdMaxRenderData::SubsetRenderData renderData;
+    renderData.materiaId = materialId;
+    if (!instanced) {
+        // Initialize 2 render items, one for regular display, and one for when we need to display
+        // selection highlighting. One OR the other is used. The render item used for selection will
+        // display both the geometry and the highlight.
+
+        MaxSDK::Graphics::GeometryRenderItemHandle geometryRenderItem;
+        geometryRenderItem.Initialize();
+        auto simpleRenderGeometry = new MaxSDK::Graphics::SimpleRenderGeometry {};
+        geometryRenderItem.SetRenderGeometry(simpleRenderGeometry);
+        renderData.renderItem.Initialize(geometryRenderItem);
+        renderData.renderItem.SetVisibilityGroup(
+            wireframe ? MaxSDK::Graphics::RenderItemVisible_Wireframe
+                      : MaxSDK::Graphics::RenderItemVisible_Shaded);
+
+        MaxSDK::Graphics::CustomRenderItemHandle usdRenderItem;
+        usdRenderItem.Initialize();
+        const auto item = new SelectionRenderItem(
+            static_cast<MaxSDK::Graphics::IRenderGeometryPtr>(simpleRenderGeometry), wireframe);
+        usdRenderItem.SetCustomImplementation(item);
+        renderData.selectionRenderItem.Initialize(usdRenderItem);
+        renderData.selectionRenderItem.SetVisibilityGroup(
+            wireframe ? MaxSDK::Graphics::RenderItemVisible_Wireframe
+                      : MaxSDK::Graphics::RenderItemVisible_Shaded);
+
+        renderData.geometry = std::make_unique<MaxRenderGeometryFacade>(simpleRenderGeometry);
+    } else {
+        // Again, initialize 2 render items for instances. However, we need to display both when
+        // highlighting, the instanceSelectionRenderGeometry only carries the highlight.
+        auto instanceRenderGeometry
+            = new MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry {};
+        auto instanceSelectionRenderGeometry
+            = new MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry {};
+        renderData.geometry = std::make_unique<MaxRenderGeometryFacade>(
+            instanceRenderGeometry, instanceSelectionRenderGeometry);
+    }
+
+    renderData.geometry->SetPrimitiveType(
+        wireframe ? MaxSDK::Graphics::PrimitiveLineList : MaxSDK::Graphics::PrimitiveTriangleList);
+
+    const auto requiredStreams = HdMaxRenderData::GetRequiredStreams(wireframe);
+
+    // TODO : Specifying tangents/binormals and all 4 UV channels is required to get good results
+    // when the viewport is set to "high quality".
+    renderData.geometry->SetStreamRequirement(requiredStreams);
+
+    return renderData;
+}
+
+void HdMaxMesh::_UpdatePerMaterialRenderData(
+    HdSceneDelegate* delegate,
+    const SdfPath&   materialId,
+    HdMaxRenderData& renderData,
+    bool             instanced)
+{
+    const HdGeomSubsets& geomSubsets = sourceTopology.GetGeomSubsets();
+
+    // If the UsdGeomSubsets do not cover all the faces in the mesh we need
+    // to add an additional render item for those faces.
+    size_t numFacesWithoutRenderItem = sourceTopology.GetNumFaces();
+
+    // faceIdToMaterialSubset is used later to split the geometry into separate Nitrous meshes.
+    faceIdToMaterialSubset.clear();
+    faceIdToMaterialSubset.resize(sourceTopology.GetNumFaces(), materialId);
+
+    // Things have changed, and we need to update the "per-material" render data, but let's try to
+    // reuse what we already have as much as possible. Indeed, if we already have some nitrous
+    // data generated for a material/mesh, we can reuse it. Anything we can't reuse has to be
+    // deleted.
+
+    // A map helping us keeping track of what we currently have, and will need.
+    // Key -> The path of the material of this mesh subset.
+    // Val -> A pair..
+    //         Key : The render data.
+    //         Val : True if we still need this render data, false otherwise.
+    std::map<pxr::SdfPath, std::pair<HdMaxRenderData::SubsetRenderData, bool>> updatedSubsets;
+
+    // Populate with the previous per-material data, initially we don't know if we will still need
+    // these...
+    for (const auto& data : renderData.shadedSubsets) {
+        updatedSubsets.insert({ data.materiaId, { data, false } });
+    }
+
+    // Simple lambda to create or update a material subset render data.
+    auto CreateOrUpdateMaterialSubset
+        = [this, &updatedSubsets, &instanced](const pxr::SdfPath& matId) {
+              // If we dont already have a subset for this material, create one.
+              const auto it = updatedSubsets.find(matId);
+              if (it == updatedSubsets.end()) {
+                  auto item = _InitializeSubsetRenderData(matId, instanced, false);
+                  updatedSubsets.insert({ matId, { item, true } });
+              }
+              // Otherwise just flag the one we have as still needed.
+              else {
+                  it->second.second = true;
+              }
+          };
+
+    // Go through the new UsdGeomSubsets. On the 3dsMax side, we only need one subset per bound
+    // material on the usd mesh. For example, if all UsdGeomSubsets share the same material, we can
+    // only have one subset with the entire mesh. However, say all but one UsdGeomSubsets share the
+    // same material, then we would need two subsets in Max.
+    for (const auto& geomSubset : geomSubsets) {
+        // Right now geom subsets only support face sets, but edge or vertex sets
+        // are possible in the future.
+        TF_VERIFY(geomSubset.type == HdGeomSubset::TypeFaceSet);
+        if (geomSubset.type != HdGeomSubset::TypeFaceSet) {
+            continue;
+        }
+
+        // There can be geom subsets on the object which are not material subsets. I've seen
+        // familyName = "object" in usda files. If there is no materialId on the subset then
+        // don't create a render item for it.
+        if (SdfPath::EmptyPath() == geomSubset.materialId) {
+            continue;
+        }
+
+        // The geomsubset materialId doesn't contain the delegate prefix.
+        CreateOrUpdateMaterialSubset(geomSubset.materialId);
+
+        // Update faceIdToMaterialSubset entries for this material.
+        for (const auto& faceId : geomSubset.indices) {
+            if (faceId >= faceIdToMaterialSubset.size()) {
+                TF_VERIFY(faceId < faceIdToMaterialSubset.size());
+                continue;
+            }
+
+            // We do not expect overlapping subsets, so at this point, the face should be assumed
+            // bound to whatever material is bound at the mesh level.
+            TF_VERIFY(materialId == faceIdToMaterialSubset[faceId]);
+            faceIdToMaterialSubset[faceId] = geomSubset.materialId;
+        }
+        numFacesWithoutRenderItem -= geomSubset.indices.size();
+    }
+
+    TF_VERIFY(numFacesWithoutRenderItem >= 0);
+
+    // If there are remaining faces that are not covered, create/update a subset for them (will use
+    // the mesh material binding).
+    if (numFacesWithoutRenderItem > 0) {
+        CreateOrUpdateMaterialSubset(materialId);
+
+        if (numFacesWithoutRenderItem == sourceTopology.GetNumFaces()) {
+            // If there are no geom subsets that are material bind geom subsets, then we don't need
+            // the _faceIdToGeomSubsetId mapping, we'll just create one item and use the full
+            // topology for it.
+            faceIdToMaterialSubset.clear();
+            numFacesWithoutRenderItem = 0;
+        }
+    }
+
+    // Finally, update the passed vector, to return the updated per-material render data to the
+    // caller.
+    renderData.shadedSubsets.clear();
+    for (const auto& data : updatedSubsets) {
+        // The subset render data is needed.
+        if (data.second.second) {
+            renderData.shadedSubsets.push_back(data.second.first);
+        }
+        // Not needed anymore, delete!
+        // Delay the destruction of any render items so they are ref counted to 0 while on the main
+        // thread. Indeed, it seems destroying render items is unsafe if not done from the main
+        // thread. So just keep a reference to the render data for now.
+        else {
+            renderData.toDelete.push_back(data.second.first);
+            this->renderDelegate
+                ->RequestGC(); // request garbage collection to happen on the main thread.
+        }
+    }
+
+    if (instanced) {
+        renderData.instancer->SetSubsetCount(renderData.shadedSubsets.size());
+    }
+}
+
+std::pair<TfToken, std::vector<TfToken>>
+HdMaxMesh::_GetMaterialUvPrimvars(HdSceneDelegate* delegate, const SdfPath& materialId)
+{
+    if (materialId.IsEmpty()) {
+        return {};
+    }
+
+    const auto it = materialToUvPrimvars.find(materialId);
+    if (it != materialToUvPrimvars.end()) {
+        return it->second;
+    }
+    const VtValue        vtMatResource = delegate->GetMaterialResource(materialId);
+    std::vector<TfToken> uvPrimvars;
+
+    TfToken diffuseColorUv;
+
+    if (vtMatResource.IsHolding<HdMaterialNetworkMap>()) {
+        const HdMaterialNetworkMap& networkMap = vtMatResource.UncheckedGet<HdMaterialNetworkMap>();
+        HdMaterialNetwork           materialNetwork;
+        TfMapLookup(networkMap.map, HdMaterialTerminalTokens->surface, &materialNetwork);
+
+        const auto& maps = MaxUsd::MaterialUtils::USDPREVIEWSURFACE_MAPS;
+
+        std::map<pxr::SdfPath, pxr::TfTokenVector> sdfPathToOutputsMap;
+
+        // Build a map of sdfPaths to outputs for texture maps.
+        // For example you might get an entry like : sdfPath -> [diffuseColor, opacity]
+        for (const auto& rel : materialNetwork.relationships) {
+            auto       outputName = rel.outputName.GetString();
+            const auto it = std::find(maps.begin(), maps.end(), outputName);
+            if (it == maps.end()) {
+                continue;
+            }
+            sdfPathToOutputsMap[rel.inputId].push_back(rel.outputName);
+        }
+
+        pxr::TfHashMap<pxr::SdfPath, pxr::HdMaterialNode, pxr::SdfPath::Hash> pathToNode;
+        for (const auto& node : materialNetwork.nodes) {
+            pathToNode.insert({ node.path, node });
+        }
+
+        for (const auto& node : materialNetwork.nodes) {
+            if (node.identifier != pxr::TfToken("UsdUVTexture")) {
+                continue;
+            }
+
+            const auto textureMaps = sdfPathToOutputsMap.find(node.path);
+            if (textureMaps == sdfPathToOutputsMap.end()) {
+                // Not connected to anything?
+                continue;
+            }
+
+            auto       outputs = textureMaps->second;
+            const bool isDiffuseColorMap
+                = std::find(outputs.begin(), outputs.end(), pxr::TfToken("diffuseColor"))
+                != outputs.end();
+
+            const auto primvar
+                = MaxUsd::MaterialUtils::GetUsdUVTexturePrimvar(node, materialNetwork, pathToNode);
+            if (!primvar.IsEmpty()) {
+                if (isDiffuseColorMap) {
+                    diffuseColorUv = primvar;
+                }
+                uvPrimvars.push_back(primvar);
+            }
+        }
+    }
+    materialToUvPrimvars.insert({ materialId, { diffuseColorUv, uvPrimvars } });
+    return { diffuseColorUv, uvPrimvars };
+}
+
+HdMaxRenderData& HdMaxMesh::_GetRenderData() { return renderDelegate->GetRenderData(GetId()); }
+
+bool HdMaxMesh::PrimvarIsRequired(const TfToken& primvar) const
+{
+    const TfTokenVector::const_iterator begin = requiredPrimvars.cbegin();
+    const TfTokenVector::const_iterator end = requiredPrimvars.cend();
+    return (std::find(begin, end, primvar) != end);
+}
+
+void HdMaxMesh::Sync(
+    HdSceneDelegate* delegate,
+    HdRenderParam*   renderParam,
+    HdDirtyBits*     dirtyBits,
+    TfToken const&   reprToken)
+{
+    const auto& id = GetId();
+    auto&       displaySettings = renderDelegate->GetDisplaySettings();
+
+    auto& renderData = _GetRenderData();
+    if (!renderData.renderTagActive) {
+        return;
+    }
+
+    // Update the topology.
+    // There are other things we need to do if the topology is dirty, but those are handled later,
+    // once we know what vertex layout we will need (shared or not - we figure this out from the
+    // primvar interpolations schemes).
+    bool topologyDirty = HdChangeTracker::IsTopologyDirty(*dirtyBits, id);
+
+    if (topologyDirty) {
+        auto getHdMaterialFromSubset = [](HdSceneDelegate*    sceneDelegate,
+                                          const pxr::SdfPath& materialId) {
+            return static_cast<HdMaxMaterial*>(
+                sceneDelegate->GetRenderIndex().GetSprim(HdPrimTypeTokens->material, materialId));
+        };
+
+        // The topology has changed, unsubscribe from updates to the materials of the old topo...
+        for (const auto& geomSubset : sourceTopology.GetGeomSubsets()) {
+            if (!geomSubset.materialId.IsEmpty()) {
+                auto material = getHdMaterialFromSubset(delegate, geomSubset.materialId);
+                if (material) {
+                    material->UnsubscribeFromMaterialUpdates(id);
+                }
+            }
+        }
+
+        sourceTopology = delegate->GetMeshTopology(id);
+
+        renderData.sourceTopology = sourceTopology;
+        renderData.sourceNumPoints = sourceTopology.GetNumPoints();
+        renderData.sourceNumFaces = sourceTopology.GetNumFaces();
+
+        // Subscribe to the new materials' updates.
+        for (const auto& geomSubset : sourceTopology.GetGeomSubsets()) {
+            if (!geomSubset.materialId.IsEmpty()) {
+                auto material = getHdMaterialFromSubset(delegate, geomSubset.materialId);
+                if (material) {
+                    material->SubscribeForMaterialUpdates(id);
+                }
+            }
+        }
+    }
+
+    // If the material assignment has changed, or at least some primvars are dirty. Need to
+    // update/figure out what primvars we need to use for UVs.
+    auto materialIdDirty = bool(*dirtyBits & HdChangeTracker::DirtyMaterialId);
+    auto dirtyPrimvars = bool(*dirtyBits & HdChangeTracker::DirtyPrimvar);
+    if (materialIdDirty || dirtyPrimvars) {
+        allUvPrimvars.clear();
+        auto addPrimvar = [this](const pxr::TfToken& pv) {
+            if (std::find(allUvPrimvars.begin(), allUvPrimvars.end(), pv) == allUvPrimvars.end()) {
+                allUvPrimvars.push_back(pv);
+            }
+        };
+
+        // First find all the primvars actually used by the assigned materials. We definitely want
+        // those.
+
+        // Lambda, finds and adds the primvars used by a material.
+        auto addMaterialUvs
+            = [this, &renderData, &delegate, &addPrimvar](const SdfPath& materialId) {
+                  TfToken              diffuseColorPrimvar;
+                  std::vector<TfToken> materialPrimvars;
+
+                  std::tie(diffuseColorPrimvar, materialPrimvars)
+                      = _GetMaterialUvPrimvars(delegate, materialId);
+
+                  if (!diffuseColorPrimvar.IsEmpty()) {
+                      renderData.materialDiffuseColorUvPrimvars[materialId] = diffuseColorPrimvar;
+                  }
+                  for (const auto pv : materialPrimvars) {
+                      addPrimvar(pv);
+                  }
+              };
+
+        // Look at all the subset materials.
+        for (const auto& subset : sourceTopology.GetGeomSubsets()) {
+            addMaterialUvs(subset.materialId);
+        }
+        // Look at the prim material.
+        const auto matId = delegate->GetMaterialId(id);
+        addMaterialUvs(matId);
+
+        // Also get the primvars which are explicitly mapped to a map channel, if requested.
+        pxr::VtValue loadAllVal = renderDelegate->GetRenderSetting(
+            pxr::TfToken("loadAllMappedPrimvars"), pxr::VtValue(false));
+        if (loadAllVal.IsHolding<bool>()) {
+            if (loadAllVal.Get<bool>()) {
+                const auto& primvarOptions = renderDelegate->GetPrimvarMappingOptions();
+                for (size_t i = 0; i < HdInterpolationCount; i++) {
+                    const HdInterpolation           interp = static_cast<HdInterpolation>(i);
+                    const HdPrimvarDescriptorVector primvars
+                        = GetPrimvarDescriptors(delegate, interp);
+                    for (const auto& pv : primvars) {
+                        if (MaxUsd::PrimvarMappingOptions::invalidChannel
+                            != primvarOptions.GetPrimvarChannelMapping(pv.name.GetString())) {
+                            addPrimvar(pv.name);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    bool needPrimvarSync = false;
+    // Simple lambda to check/update the requirement for a given primvar, and the need to
+    // synchronize it.
+    auto checkPrimvar = [this, &id, &dirtyBits, &needPrimvarSync](
+                            const TfToken primvarName, bool& dirtyFlag, bool condition) {
+        if (HdChangeTracker::IsPrimvarDirty(*dirtyBits, id, primvarName)) {
+            if (condition) {
+                if (!PrimvarIsRequired(primvarName)) {
+                    requiredPrimvars.push_back(primvarName);
+                }
+            } else {
+                const auto it
+                    = std::find(requiredPrimvars.begin(), requiredPrimvars.end(), primvarName);
+                if (it != requiredPrimvars.end()) {
+                    requiredPrimvars.erase(it);
+                }
+            }
+            dirtyFlag = true;
+            needPrimvarSync = true;
+        }
+    };
+
+    bool normalsDirty = false;
+    checkPrimvar(HdTokens->normals, normalsDirty, true);
+    bool uvsDirty = false;
+
+    for (const auto uvPrimvar : allUvPrimvars) {
+        bool isDirty = false;
+        checkPrimvar(
+            uvPrimvar,
+            isDirty,
+            displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface);
+        uvsDirty |= isDirty;
+    }
+
+    bool displayColorDirty = false;
+    checkPrimvar(
+        HdTokens->displayColor,
+        displayColorDirty,
+        displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface);
+    auto pointsDirty = HdChangeTracker::IsPrimvarDirty(*dirtyBits, id, HdTokens->points);
+    checkPrimvar(HdTokens->points, pointsDirty, true);
+
+    if (needPrimvarSync) {
+        // Update primvars, for now we only use the normals and one UV primvar.
+        _UpdatePrimvarSources(delegate, *dirtyBits, requiredPrimvars);
+    }
+
+    auto newSharedLayoutPossible = _IsSharedVertexLayoutPossible(primvarInfoMap);
+    if (newSharedLayoutPossible != sharedVertexLayout) {
+        // The interpolation of a Primvar has changed, and the possibility of sharing vertices has
+        // changed. We need to reload all the buffers, so we will consider everything as dirty for
+        // this sync().
+        pointsDirty = true;
+        topologyDirty = true;
+        normalsDirty = true;
+        uvsDirty = true;
+        displayColorDirty = true;
+    }
+    sharedVertexLayout = newSharedLayoutPossible;
+
+    // Update the instancer.
+    _UpdateInstancer(delegate, dirtyBits);
+    const SdfPath& instancerId = delegate->GetInstancerId(GetId());
+
+    const auto instancerDirty = HdChangeTracker::IsInstancerDirty(*dirtyBits, id);
+    const auto instancerIndicesDirty = HdChangeTracker::IsInstanceIndexDirty(*dirtyBits, id);
+    if (instancerDirty || instancerIndicesDirty) {
+        instancer = delegate->GetRenderIndex().GetInstancer(instancerId);
+    }
+
+    auto isTransformDirty = HdChangeTracker::IsTransformDirty(*dirtyBits, id);
+    auto isExtentDirty = HdChangeTracker::IsExtentDirty(*dirtyBits, id);
+
+    // If the topology has changed, we need to recompute the triangulation.
+    if (topologyDirty) {
+        const SdfPath materialId = delegate->GetMaterialId(id);
+        bool          instanced = instancer != nullptr;
+
+        // Shaded - need one render item for each material bound to the mesh.
+        _UpdatePerMaterialRenderData(delegate, materialId, renderData, instanced);
+
+        // Wireframe - one render item for the whole mesh (essentially treated as one subset with
+        // everything). Only need to initialize the wireframe render data once.
+        if (!renderData.wireframe.geometry) {
+            renderData.wireframe = _InitializeSubsetRenderData({}, instanced, true);
+        }
+
+        // Flag transforms dirty as they will need to be re-applied on any newly created render
+        // items.
+        isTransformDirty = true;
+
+        // Shared vertex layout, we can use the topology as-is.
+        if (sharedVertexLayout) {
+            renderingTopology = sourceTopology;
+        } else {
+            // Not sharing points, will re-index to a natural sequence [0-N].
+            VtIntArray newFaceVertexIndices(sourceTopology.GetFaceVertexIndices().size());
+            std::iota(newFaceVertexIndices.begin(), newFaceVertexIndices.end(), 0);
+
+            renderingTopology = HdMeshTopology(
+                sourceTopology.GetScheme(),
+                sourceTopology.GetOrientation(),
+                sourceTopology.GetFaceVertexCounts(),
+                newFaceVertexIndices,
+                sourceTopology.GetHoleIndices(),
+                sourceTopology.GetRefineLevel());
+        }
+
+        HdMeshUtil meshUtil(&renderingTopology, GetId());
+        triangulatedIndices.clear();
+        VtIntArray trianglePrimitiveParams;
+        meshUtil.ComputeTriangleIndices(&triangulatedIndices, &trianglePrimitiveParams, nullptr);
+
+        pxr::TfHashMap<pxr::SdfPath, int, pxr::SdfPath::Hash> materialToSubsetIndex;
+        // Shaded (one subset/render item per material)
+        for (int i = 0; i < renderData.shadedSubsets.size(); ++i) {
+            auto&        subsetItem = renderData.shadedSubsets[i];
+            VtVec3iArray trianglesFaceVertexIndices; // for this item only!
+            if (faceIdToMaterialSubset.size() == 0) {
+                // If there is no mapping from face to render item then all the faces are on this
+                // render item. VtArray has copy-on-write semantics so this is fast.
+                trianglesFaceVertexIndices = triangulatedIndices;
+            } else {
+                for (size_t triangleId = 0; triangleId < triangulatedIndices.size(); ++triangleId) {
+                    size_t faceId = HdMeshUtil::DecodeFaceIndexFromCoarseFaceParam(
+                        trianglePrimitiveParams[triangleId]);
+
+                    if (faceIdToMaterialSubset[faceId] == subsetItem.materiaId) {
+                        trianglesFaceVertexIndices.push_back(triangulatedIndices[triangleId]);
+                    }
+                }
+            }
+
+            if (subsetItem.indices.size() != trianglesFaceVertexIndices.size()) {
+                HdMaxChangeTracker::SetDirty(
+                    subsetItem.dirtyBits, HdMaxChangeTracker::DirtyIndicesSize);
+                HdMaxChangeTracker::SetDirty(
+                    subsetItem.dirtyBits, HdMaxChangeTracker::DirtyIndices);
+            } else if (!std::equal(
+                           subsetItem.indices.cbegin(),
+                           subsetItem.indices.cend(),
+                           trianglesFaceVertexIndices.cbegin(),
+                           trianglesFaceVertexIndices.cend())) {
+                HdMaxChangeTracker::SetDirty(
+                    subsetItem.dirtyBits, HdMaxChangeTracker::DirtyIndices);
+            }
+
+            subsetItem.indices = trianglesFaceVertexIndices;
+            materialToSubsetIndex.insert({ subsetItem.materiaId, i });
+        }
+
+        // Wireframe - only need a single render item.
+        {
+            // In wireframe mode, we want to show the actual topology, not a triangulation.
+            const VtIntArray& faceVertexIndices = renderingTopology.GetFaceVertexIndices();
+            const VtIntArray& faceVertexCounts = renderingTopology.GetFaceVertexCounts();
+
+            // Keep track of the current size of the index buffers. If they change, we must dirty
+            // the render data appropriately.
+            std::vector<size_t> previousWireIndicesSize;
+            previousWireIndicesSize.reserve(renderData.shadedSubsets.size());
+            for (auto& subset : renderData.shadedSubsets) {
+                previousWireIndicesSize.push_back(subset.wireIndices.size());
+                subset.wireIndices.clear();
+            }
+
+            // Build the segment indices from each face.
+            int currIdx = 0;
+            for (int i = 0; i < renderingTopology.GetNumFaces(); ++i) {
+                auto& wireframeIndices
+                    = renderData.shadedSubsets[materialToSubsetIndex[faceIdToMaterialSubset[i]]]
+                          .wireIndices;
+                auto faceVertexCount = faceVertexCounts[i];
+                for (int j = 0; j < faceVertexCount; ++j) {
+                    auto index = currIdx + j;
+                    wireframeIndices.push_back(faceVertexIndices[index]);
+                    wireframeIndices.push_back(
+                        faceVertexIndices[((j + 1) % faceVertexCount) + currIdx]);
+                }
+                currIdx += faceVertexCount;
+            }
+
+            for (int i = 0; i < renderData.shadedSubsets.size(); ++i) {
+                if (previousWireIndicesSize[i] != renderData.shadedSubsets[i].wireIndices.size()) {
+                    HdMaxChangeTracker::SetDirty(
+                        renderData.shadedSubsets[i].dirtyBits,
+                        HdMaxChangeTracker::DirtyIndicesSize);
+                    break;
+                }
+            }
+        }
+
+        // Typically we just flag all bits as not dirty at the end of the Sync() call.
+        // However, in case no render items are created (no topology defined) at this timeCode,
+        // we need to flag the topology as not dirty now, in case we return from the function
+        // just below.
+        *dirtyBits &= ~HdChangeTracker::DirtyTopology;
+    }
+
+    // If the topology did not produce any render items, we are done.
+    if (renderData.shadedSubsets.empty()) {
+        return;
+    }
+
+    // Update of the vertex position data if needed.
+    if (pointsDirty) {
+        const auto previousPointsSize = renderData.points.size();
+        _LoadPoints(id, delegate, sourceTopology);
+        const auto newPointsSize = renderData.points.size();
+
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyPoints);
+        if (previousPointsSize != newPointsSize) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyPointsSize);
+        }
+    }
+
+    // If normals are flagged as dirty, update them.
+    // Normals are computed unless already specified.
+    if (normalsDirty || topologyDirty) {
+        const auto previousNormalsSize = renderData.normals.size();
+        _LoadNormals(id, delegate);
+        const auto newNormalsSize = renderData.normals.size();
+
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyNormals);
+        // Same size, can just update the buffer.
+        if (previousNormalsSize != newNormalsSize) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyNormalsSize);
+        }
+    }
+
+    if (uvsDirty) {
+        const auto previousUvsSize = renderData.uvs.size();
+        if (displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface) {
+            _LoadUvs(id, delegate, allUvPrimvars);
+        } else {
+            renderData.uvs.clear();
+        }
+        const auto newUvsSize = renderData.uvs.size();
+
+        auto renderGeometry = renderData.shadedSubsets[0].geometry;
+
+        // Same size, can just update the buffer.
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyUvs);
+        if (previousUvsSize != newUvsSize) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyUvsSize);
+        }
+    }
+
+    // Visibility - simply flag the render item as visible or not. Later on, this will control
+    // whether the render item is considered for actual rendering.
+    if (HdChangeTracker::IsVisibilityDirty(*dirtyBits, id)) {
+        renderData.visible = delegate->GetVisible(id);
+        *dirtyBits &= ~HdChangeTracker::DirtyVisibility;
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyVisibility);
+    }
+
+    // Handle changes to the display color. Create a 3dsmax material handle accordingly.
+    if (displayColorDirty) {
+        const auto previousDisplayColorSize = renderData.colors.size();
+        if (displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface) {
+            _LoadDisplayColor(id, delegate);
+        } else {
+            renderData.colors.clear();
+        }
+        const auto newDisplayColorSize = renderData.colors.size();
+
+        // Same size, can just update the buffer.
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyVertexColors);
+        if (previousDisplayColorSize != newDisplayColorSize) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyVertexColorsSize);
+        }
+
+        // If we are using the display color as nitrous material, flag it as dirty.
+        if (displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDDisplayColor) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyMaterial);
+        }
+
+        std::lock_guard<std::recursive_mutex> maxLock(maxSdkMutex);
+
+        auto color = GfVec3f(0.8f, 0.8f, 0.8f);
+        if (!renderData.colors.empty()) {
+            color = renderData.colors[0];
+        } else {
+            auto displayColorAttr = delegate->Get(id, HdTokens->displayColor);
+            if (displayColorAttr.IsArrayValued()) {
+                const auto& colorArray = displayColorAttr.Get<VtVec3fArray>();
+                color = colorArray[0];
+            }
+        }
+
+        auto setDisplayColorMaterialHandle = [&color, &renderData, this](bool instanced) {
+            auto& displayColorHandle = instanced ? renderData.instanceDisplayColorNitrousHandle
+                                                 : renderData.displayColorNitrousHandle;
+            displayColorHandle = HdMaxColorMaterial::Get(color, instanced);
+        };
+
+        // Always generate the non-instanced version, even when instanced, we might need it for
+        // consolidation.
+        setDisplayColorMaterialHandle(false);
+        if (instancer) {
+            // If the geometry is instanced, generate the instanced version of the displayColor
+            // material.
+            setDisplayColorMaterialHandle(true);
+        }
+    }
+
+    // Update the rPrim's material id, and the material update subscriptions
+    // accordingly.
+    if (materialIdDirty) {
+        const SdfPath  materialId = delegate->GetMaterialId(id);
+        const SdfPath& origMaterialId = GetMaterialId();
+        if (materialId != origMaterialId) {
+            if (!origMaterialId.IsEmpty()) {
+                pxr::HdMaxMaterial* material
+                    = static_cast<pxr::HdMaxMaterial*>(delegate->GetRenderIndex().GetSprim(
+                        HdPrimTypeTokens->material, origMaterialId));
+                if (material) {
+                    material->UnsubscribeFromMaterialUpdates(id);
+                }
+            }
+
+            if (!materialId.IsEmpty()) {
+                pxr::HdMaxMaterial* material = static_cast<pxr::HdMaxMaterial*>(
+                    delegate->GetRenderIndex().GetSprim(HdPrimTypeTokens->material, materialId));
+                if (material) {
+                    material->SubscribeForMaterialUpdates(id);
+                }
+            }
+        }
+        SetMaterialId(materialId);
+
+        // Using the usd preview surface as nitrous material, flag it as dirty.
+        if (displaySettings.GetDisplayMode() == HdMaxDisplaySettings::USDPreviewSurface) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyMaterial);
+        }
+    }
+
+    // Handles material and color changes on non-instanced geometry.
+    if ((materialIdDirty || displayColorDirty) && !instancer) {
+        std::lock_guard<std::recursive_mutex> maxLock(maxSdkMutex);
+        for (auto& subsetItem : renderData.shadedSubsets) {
+            // Setup the 3dsMax Material and its the viewport representation.
+            // The Max material is what ends up being used for rendering, so it is always the
+            // "best" we have. The viewport representation however, depends on viewport
+            // display settings.
+
+            MaxSDK::Graphics::BaseMaterialHandle usdPreviewSurfaceMaterialHandle;
+
+            // 3dsMax Material : use the displayColor Material (diffuse color from vertex colors)
+            // unless an actual material is defined.
+            if (!subsetItem.materiaId.IsEmpty()) {
+                auto materialCollection = renderDelegate->GetMaterialCollection();
+                // Not built at this point.
+                subsetItem.materialData
+                    = materialCollection->AddMaterial(delegate, subsetItem.materiaId);
+            }
+        }
+    }
+
+    // Update the render item transforms. Instance transforms are handled separately.
+    if (isTransformDirty && !instancer) {
+        // We could set the transform on the render item right now, but this would require a lock,
+        // and on scenes with many objects with animated transforms, this has a non-negligible cost.
+        auto transform = delegate->GetTransform(id);
+
+        if (renderData.transform != transform) {
+            renderData.transform = transform;
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyTransforms);
+        }
+    }
+
+    // Update the bounding box for the item.
+    if ((isTransformDirty || isExtentDirty) && !instancer) {
+        if (isExtentDirty) {
+            renderData.extent = delegate->GetExtent(id);
+        }
+        // Compute the Prim's bounding box in world space.
+        GfBBox3d box { renderData.extent };
+        box.Transform(renderData.transform);
+        renderData.boundingBox = box.ComputeAlignedBox();
+    }
+
+    auto dirtySelectionHighlight = bool(*dirtyBits & DirtySelectionHighlight);
+
+    // For anything else than selection changes, we need to update instances.
+    // Changes to selected instances are handled below on DirtySelectionHighlight.
+    if (instancer && *dirtyBits != (HdChangeTracker::Varying | DirtySelectionHighlight)) {
+        VtMatrix4dArray transforms
+            = static_cast<HdMaxInstancer*>(instancer)->ComputeInstanceTransforms(id);
+        // The final transform is the product of the mesh's transform and the instance's transform.
+        auto meshTransform = delegate->GetTransform(id);
+        for (auto& transform : transforms) {
+            transform = meshTransform * transform;
+        }
+
+        auto newInstanceCount = transforms.size();
+
+        auto extent = delegate->GetExtent(id);
+        renderData.extent = extent;
+        // Compute the total bounding box given all instances.
+        renderData.boundingBox = MaxUsd::ComputeTotalExtent(extent, transforms);
+
+        std::lock_guard<std::recursive_mutex> maxLock(maxSdkMutex);
+
+        auto materialCollection = renderDelegate->GetMaterialCollection();
+        for (auto& subsetItem : renderData.shadedSubsets) {
+            if (subsetItem.materiaId.IsEmpty()) {
+                continue;
+            }
+            subsetItem.materialData
+                = materialCollection->AddMaterial(delegate, subsetItem.materiaId);
+        }
+
+        bool needFullRebuild = instancerIndicesDirty || topologyDirty || materialIdDirty;
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyTransforms);
+        if (instanceCount != newInstanceCount) {
+            renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtyTransformsSize);
+        }
+
+        renderData.instancer->RequestUpdate(needFullRebuild, transforms);
+        instanceCount = newInstanceCount;
+    }
+
+    if (dirtySelectionHighlight) {
+        // Start by clearing the current selection.
+        renderData.selected = false;
+        auto selStatus = renderDelegate->GetSelectionStatus(id);
+        // For instances, need to check what instance indices are selected, and update the instancer
+        // accordingly.
+        if (instancer) {
+            renderData.instancer->ResetSelection();
+
+            if (selStatus) {
+                renderData.selected = !selStatus->instanceIndices.empty();
+                for (const auto& indexArray : selStatus->instanceIndices) {
+                    for (const auto index : indexArray) {
+                        renderData.instancer->Select(index);
+                    }
+                }
+            }
+            renderData.instancer->RequestSelectionDisplayUpdate(true);
+        } else if (selStatus) {
+            renderData.selected = selStatus->fullySelected;
+        }
+        renderData.SetAllSubsetRenderDataDirty(HdMaxChangeTracker::DirtySelectionHighlight);
+    }
+
+    // This clears all the non-custom dirty bits. This ensures that the rprim
+    // doesn't have pending dirty bits that add it to the dirty list every
+    // frame. GetInitialDirtyBitsMask sets certain dirty bits that aren't
+    // reset (e.g. DirtyExtent, DirtyPrimID) that make this necessary.
+    *dirtyBits &= ~HdChangeTracker::AllSceneDirtyBits;
+    // Clear custom selection highlight bit.
+    *dirtyBits &= ~DirtySelectionHighlight;
+}
+
+HdDirtyBits HdMaxMesh::_PropagateDirtyBits(HdDirtyBits bits) const
+{
+    // When instance indices change, we also need to update our selection, as we directly rely
+    // on the indices.
+    if (bits & HdChangeTracker::DirtyInstanceIndex) {
+        bits |= DirtySelectionHighlight;
+    }
+
+    return bits;
+}
+
+void HdMaxMesh::_InitRepr(TfToken const& reprToken, HdDirtyBits* dirtyBits)
+{
+    TF_UNUSED(dirtyBits);
+
+    // Create an empty repr.
+    _ReprVector::iterator it
+        = std::find_if(_reprs.begin(), _reprs.end(), _ReprComparator(reprToken));
+    if (it == _reprs.end()) {
+        _reprs.emplace_back(reprToken, HdReprSharedPtr());
+    }
+}
+
+void HdMaxMesh::Finalize(HdRenderParam* renderParam) { }
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+// Disable obscure warning : no definition for inline function : pxr::DefaultValueHolder
+// Was not able to identify what is triggering this.
+#pragma warning(disable : 4506)
diff --git a/src/RenderDelegate/Imaging/HdMaxMesh.h b/src/RenderDelegate/Imaging/HdMaxMesh.h
new file mode 100644
index 0000000..a378588
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxMesh.h
@@ -0,0 +1,212 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <RenderDelegate/HdMaxRenderData.h>
+#include <RenderDelegate/PrimvarInfo.h>
+
+#include <pxr/imaging/hd/mesh.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+class HdMaxRenderDelegate;
+
+/**
+ * \brief Handles hydra mesh to Nitrous render data synchronization.
+ */
+class HdMaxMesh : public HdMesh
+{
+public:
+    enum DirtyBits : HdDirtyBits
+    {
+        DirtySelectionHighlight = HdChangeTracker::CustomBitsBegin,
+    };
+
+    /**
+     * \brief Builds a hydra Max mesh.
+     * \param rPrimId Render prim identifier, its full path within hydra (perhaps not exactly its path within the stage, as
+     * multiple scene delegates can be tied to the same render index).
+     * \param renderDataIdx The index of the nitrous render data we will be synchronizing the render primitive with.
+     */
+    HdMaxMesh(HdMaxRenderDelegate* delegate, SdfPath const& rPrimId, size_t renderDataIdx);
+
+    /**
+     * \brief Default destructor.
+     */
+    ~HdMaxMesh() override = default;
+
+    // Inherited via HdMesh
+    /**
+     * \brief Returns the initial dirty bit mask. This will tell Hydra what, within render primitives, needs to be
+     * flagged dirty so it can be refreshed initially.
+     * \return The dirty bit mask.
+     */
+    HdDirtyBits GetInitialDirtyBitsMask() const override;
+
+    /**
+     * \brief Check if a primvar is currently required to be loaded.
+     * \param primvar The primvar name to check.
+     * \return True if the primvar is required, false otherwise.
+     */
+    bool PrimvarIsRequired(const TfToken& primvar) const;
+
+    /**
+     * \brief Performs synchronization of the hydra mesh with the nitrous render data.
+     * \param delegate A reference to the scene delegate.
+     * \param renderParam Render parameter.
+     * \param dirtyBits The dirty bit mask.
+     * \param reprToken The representation that needs to be updated. We do not use this for now.
+     */
+    void Sync(
+        HdSceneDelegate* delegate,
+        HdRenderParam*   renderParam,
+        HdDirtyBits*     dirtyBits,
+        TfToken const&   reprToken) override;
+
+    /**
+     * \brief Finalizes the render mesh.
+     * \param renderParam Render parameter.
+     */
+    void Finalize(HdRenderParam* renderParam) override;
+
+protected:
+    HdDirtyBits _PropagateDirtyBits(HdDirtyBits bits) const override;
+    void        _InitRepr(TfToken const& reprToken, HdDirtyBits* dirtyBits) override;
+
+    /**
+     * \brief Updates the primvar data cached in primvarInfoMap.
+     * \param sceneDelegate The scene delegate.
+     * \param dirtyBits Currently dirty bits.
+     * \param requiredPrimvars Primvars that should be considered in the update.
+     */
+    void _UpdatePrimvarSources(
+        HdSceneDelegate*     sceneDelegate,
+        HdDirtyBits          dirtyBits,
+        const TfTokenVector& requiredPrimvars);
+
+    /**
+     * \brief Loads the points that will be used for rendering in Nitrous. Considers whether or not
+     * vertices can be shared.
+     * \param id Id of the Mesh.
+     * \param delegate The scene delegate.
+     * \param topology The mesh's topology.
+     */
+    void
+    _LoadPoints(const pxr::SdfPath& id, HdSceneDelegate* delegate, const HdMeshTopology& topology);
+
+    /**
+     * \brief Loads the normals that will be used for rendering in Nitrous. Considers whether vertices
+     * can be shared, and the interpolation scheme used for normals. If normals are not specified,
+     * they are computed.
+     * \param id The id of the mesh.
+     * \param delegate The scene delegate.
+     */
+    void _LoadNormals(const pxr::SdfPath& id, HdSceneDelegate* delegate);
+
+    /**
+     * \brief Loads the UVs that will be used for rendering in Nitrous. Considers whether vertices
+     * can be shared, and the interpolation scheme used for UVs.
+     * \param id The id of the mesh.
+     * \param delegate The scene delegate.
+     * \param uvPrimvars A vector of primvar names, to be loaded as UVs.
+     */
+    void _LoadUvs(
+        const pxr::SdfPath&         id,
+        HdSceneDelegate*            delegate,
+        const std::vector<TfToken>& uvPrimvars);
+
+    /**
+     * \brief Loads the display color primvar (will be used as vertex color)
+     * \param id  The id of the mesh.
+     * \param delegate The scene delegate.
+     */
+    void _LoadDisplayColor(const pxr::SdfPath& id, HdSceneDelegate* delegate);
+
+    /**
+     * \brief Initializes a render data object for a subset of the mesh, faces sharing the same bound material.
+     * \param materialId The material Id that is bound to this subset.
+     * \param instanced Whether this geometry will be instanced.
+     * \param wireframe If we are initializing a wireframe or shaded item.
+     * \return A SubsetRenderData initialized for the subset. Note that as this point, no actual geometry
+     * is loaded into the render data, but it is ready to accept it.
+     */
+    HdMaxRenderData::SubsetRenderData
+    _InitializeSubsetRenderData(const SdfPath& materialId, bool instanced, bool wireframe);
+
+    /**
+     * \brief Initializes the render data for all UsdGeomSubset of the mesh, we need one for every different material bound.
+     * If no subsets are defined in the mesh, a single subset is created, containing the entire geometry.
+     * \param delegate The scene delegate.
+     * \param materialId The material bound to the mesh itself (used if we need to create a subset for geometry that is
+     * not already part of any subsets).
+     * \param renderData The renderData containing the subsets that may need to be updated.
+     * \param instanced True if the geometry is meant to be instanced.
+     */
+    void _UpdatePerMaterialRenderData(
+        HdSceneDelegate* delegate,
+        const SdfPath&   materialId,
+        HdMaxRenderData& renderData,
+        bool             instanced);
+
+    /**
+     * \brief Returns the main UV primvar used in a Material. Multiple UV primvars can be used by a material,
+     * for not we only support a single one.
+     * \param delegate The scene delegate.
+     * \param materialId The ID of the material.
+     * \return A pair containing the primvar to be used for the diffuseColor uvs, and a vector with all primvars used by
+     * the material.
+     */
+    std::pair<TfToken, std::vector<TfToken>>
+    _GetMaterialUvPrimvars(HdSceneDelegate* delegate, const SdfPath& materialId);
+
+    /**
+     * \brief Returns a reference to the nitrous render data associated with this hydra mesh.
+     * \return The render data.
+     */
+    HdMaxRenderData& _GetRenderData();
+
+private:
+    /// The current dirty bits mask.
+    HdDirtyBits dirtyBits;
+    /// The render delegate associated with this mesh.
+    HdMaxRenderDelegate* renderDelegate;
+    /// Whether or not we can share vertices. If any primvar has
+    /// faceVarying or uniform interpolation, we can't.
+    bool sharedVertexLayout = false;
+    /// Primvar data cache.
+    PrimvarInfoMap primvarInfoMap;
+    /// The topology of the mesh.
+    HdMeshTopology sourceTopology;
+    /// The topology we use for rendering, if unsharedLayoutRequired = false,
+    /// this is the same as the sourceTopology.
+    HdMeshTopology renderingTopology;
+    /// Triangulated indices for display.
+    VtVec3iArray triangulatedIndices;
+    /// The curent number of instances for this mesh.
+    size_t instanceCount = 0;
+    /// Subset its for each face. If not subsets are defined, this remains
+    /// empty.
+    std::vector<SdfPath> faceIdToMaterialSubset;
+    /// Cache so we only need to figure out a material's input UV primvar once.
+    ///	The pair is [diffuseColor uv primvar, all material primvars]
+    std::map<SdfPath, std::pair<TfToken, std::vector<TfToken>>> materialToUvPrimvars;
+    /// Reference to the mesh's instancer. Can remain nullptr.
+    HdInstancer* instancer = nullptr;
+    /// All used UV primvars for this mesh.
+    std::vector<TfToken> allUvPrimvars;
+    /// Primvars that are currently required to be loaded.
+    TfTokenVector requiredPrimvars;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderDelegate.cpp b/src/RenderDelegate/Imaging/HdMaxRenderDelegate.cpp
new file mode 100644
index 0000000..e3dc84f
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderDelegate.cpp
@@ -0,0 +1,269 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxRenderDelegate.h"
+
+#include "HdMaxExtComputation.h"
+#include "HdMaxInstancer.h"
+#include "HdMaxMaterial.h"
+#include "HdMaxMesh.h"
+#include "HdMaxRenderPass.h"
+
+#include <pxr/imaging/hd/extComputation.h>
+
+using namespace MaxSDK::Graphics;
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+const TfTokenVector HdMaxRenderDelegate::SUPPORTED_RPRIM_TYPES = {
+    HdPrimTypeTokens->mesh,
+};
+
+const TfTokenVector HdMaxRenderDelegate::SUPPORTED_SPRIM_TYPES
+    = { HdPrimTypeTokens->material, HdPrimTypeTokens->extComputation };
+
+const TfTokenVector HdMaxRenderDelegate::SUPPORTED_BPRIM_TYPES = {};
+
+const TfTokenVector& HdMaxRenderDelegate::GetSupportedRprimTypes() const
+{
+    return SUPPORTED_RPRIM_TYPES;
+}
+
+const TfTokenVector& HdMaxRenderDelegate::GetSupportedSprimTypes() const
+{
+    return SUPPORTED_SPRIM_TYPES;
+}
+
+const TfTokenVector& HdMaxRenderDelegate::GetSupportedBprimTypes() const
+{
+    return SUPPORTED_BPRIM_TYPES;
+}
+
+HdMaxRenderDelegate::HdMaxRenderDelegate(HdRenderSettingsMap const& settings)
+    : HdRenderDelegate(settings)
+{
+    materialCollection = std::make_shared<HdMaxMaterialCollection>();
+    activeSelection.reset(new pxr::HdSelection);
+}
+
+HdMaxRenderDelegate::~HdMaxRenderDelegate() { }
+
+HdMaxRenderData& HdMaxRenderDelegate::GetRenderData(size_t id) { return renderDataVector[id]; }
+
+HdMaxRenderData& HdMaxRenderDelegate::GetRenderData(const pxr::SdfPath& primpath)
+{
+    return renderDataVector[renderDataIndexMap[primpath]];
+}
+
+HdMaxRenderData& HdMaxRenderDelegate::SafeGetRenderData(size_t index, const pxr::SdfPath& primPath)
+{
+    static HdMaxRenderData invalid { {} };
+
+    auto findByKey = [this](const pxr::SdfPath& primPath) -> HdMaxRenderData& {
+        const auto it = renderDataIndexMap.find(primPath);
+        if (it == renderDataIndexMap.end()) {
+            return invalid;
+        }
+        return renderDataVector[it->second];
+    };
+
+    if (index >= renderDataVector.size()) {
+        return findByKey(primPath);
+    }
+
+    // If the prim path of the data we retrieved is not the one we expect (index has changed since),
+    // use the prim path instead.
+    auto& renderData = renderDataVector[index];
+    if (renderData.rPrimPath == primPath) {
+        return renderData;
+    }
+    return findByKey(primPath);
+}
+
+size_t HdMaxRenderDelegate::GetRenderDataIndex(const pxr::SdfPath& path) const
+{
+    return renderDataIndexMap.at(path);
+}
+
+const std::unordered_map<pxr::SdfPath, size_t, pxr::SdfPath::Hash>&
+HdMaxRenderDelegate::GetRenderDataIdMap() const
+{
+    return renderDataIndexMap;
+}
+
+std::vector<HdMaxRenderData>& HdMaxRenderDelegate::GetAllRenderData() { return renderDataVector; }
+
+void HdMaxRenderDelegate::GetVisibleRenderData(
+    const TfTokenVector&           renderTags,
+    std::vector<HdMaxRenderData*>& data)
+{
+    for (auto& primRenderData : renderDataVector) {
+        // Only display the prim if visible and if its render tag is selected.
+        if (!primRenderData.visible || !primRenderData.renderTagActive) {
+            continue;
+        }
+        // If using instancing, make sure we have at least one instance visible.
+        if (primRenderData.shadedSubsets.empty()
+            || (primRenderData.shadedSubsets[0].IsInstanced()
+                && primRenderData.instancer->GetNumInstances() == 0)) {
+            continue;
+        }
+
+        data.push_back(&primRenderData);
+    }
+}
+
+HdRenderParam* HdMaxRenderDelegate::GetRenderParam() const { return nullptr; }
+
+HdResourceRegistrySharedPtr HdMaxRenderDelegate::GetResourceRegistry() const { return nullptr; }
+
+HdRenderPassSharedPtr
+HdMaxRenderDelegate::CreateRenderPass(HdRenderIndex* index, HdRprimCollection const& collection)
+{
+    return HdRenderPassSharedPtr(new HdMaxRenderPass(index, collection));
+}
+
+HdInstancer* HdMaxRenderDelegate::CreateInstancer(HdSceneDelegate* delegate, SdfPath const& id)
+{
+    return new HdMaxInstancer(delegate, id);
+}
+
+void HdMaxRenderDelegate::DestroyInstancer(HdInstancer* instancer) { }
+
+HdRprim* HdMaxRenderDelegate::CreateRprim(TfToken const& typeId, SdfPath const& rPrimId)
+{
+    if (typeId == HdPrimTypeTokens->mesh) {
+        renderDataVector.emplace_back(rPrimId);
+
+        size_t renderDataIdx = renderDataVector.size() - 1;
+        renderDataIndexMap.insert({ rPrimId, renderDataIdx });
+
+        // We need to keep a reference to the hydra meshes we create, so that they can be deleted
+        // properly.
+        auto       mesh = std::make_unique<HdMaxMesh>(this, rPrimId, renderDataIdx);
+        const auto meshPtr = mesh.get();
+        meshes.insert({ rPrimId, (std::move(mesh)) });
+        return meshPtr;
+    }
+    return nullptr;
+}
+
+void HdMaxRenderDelegate::DestroyRprim(HdRprim* rPrim)
+{
+    const auto& path = rPrim->GetId();
+    auto        primIdx = renderDataIndexMap.find(path);
+    if (primIdx == renderDataIndexMap.end()) {
+        return;
+    }
+
+    // Update our data structures. For the vector, we want to avoid shifting
+    // everything after the index, so to remove the prim's render data, we move
+    // the last item in the vector in its place, and just pop the now emptied
+    // last item.
+    if (primIdx->second != renderDataVector.size() - 1) {
+        auto& availableSlot = renderDataVector[primIdx->second];
+        availableSlot = std::move(renderDataVector.back());
+        // Make sure to update the index in the map.
+        renderDataIndexMap[availableSlot.rPrimPath] = primIdx->second;
+    }
+    renderDataVector.pop_back();
+    renderDataIndexMap.erase(path);
+    meshes.erase(rPrim->GetId());
+}
+
+HdSprim* HdMaxRenderDelegate::CreateSprim(TfToken const& typeId, SdfPath const& sprimId)
+{
+    if (typeId == HdPrimTypeTokens->material) {
+        return new HdMaxMaterial(this, sprimId);
+    }
+    if (typeId == HdPrimTypeTokens->extComputation) {
+        return new HdMaxExtComputation(sprimId);
+    }
+    return nullptr;
+}
+
+HdSprim* HdMaxRenderDelegate::CreateFallbackSprim(TfToken const& typeId)
+{
+    if (typeId == HdPrimTypeTokens->extComputation) {
+        return new HdMaxExtComputation(SdfPath::EmptyPath());
+    }
+    return nullptr;
+}
+
+void HdMaxRenderDelegate::DestroySprim(HdSprim* sprim) { delete sprim; }
+
+HdBprim* HdMaxRenderDelegate::CreateBprim(TfToken const& typeId, SdfPath const& bprimId)
+{
+    return nullptr;
+}
+
+HdBprim* HdMaxRenderDelegate::CreateFallbackBprim(TfToken const& typeId) { return nullptr; }
+
+void HdMaxRenderDelegate::DestroyBprim(HdBprim* bprim) { }
+
+void HdMaxRenderDelegate::CommitResources(HdChangeTracker* tracker) { }
+
+void HdMaxRenderDelegate::Clear()
+{
+    renderDataIndexMap.clear();
+    renderDataVector.clear();
+    meshes.clear();
+    materialCollection = std::make_shared<HdMaxMaterialCollection>();
+}
+
+void HdMaxRenderDelegate::GarbageCollect()
+{
+    if (!mustGc) {
+        return;
+    }
+    for (auto& data : GetAllRenderData()) {
+        data.toDelete.clear();
+    }
+    mustGc = false;
+}
+
+HdMaxDisplaySettings& HdMaxRenderDelegate::GetDisplaySettings() { return displaySettings; }
+
+void HdMaxRenderDelegate::SetSelection(const pxr::HdSelectionSharedPtr& selection)
+{
+    activeSelection = selection;
+}
+
+const pxr::HdSelectionSharedPtr& HdMaxRenderDelegate::GetSelection() const
+{
+    return activeSelection;
+}
+
+const pxr::HdSelection::PrimSelectionState*
+HdMaxRenderDelegate::GetSelectionStatus(const pxr::SdfPath& path) const
+{
+    if (!activeSelection) {
+        return nullptr;
+    }
+    return activeSelection->GetPrimSelectionState(
+        pxr::HdSelection::HighlightMode::HighlightModeSelect, path);
+}
+
+MaxUsd::PrimvarMappingOptions& HdMaxRenderDelegate::GetPrimvarMappingOptions()
+{
+    return primvarMappingOptions;
+}
+
+std::shared_ptr<HdMaxMaterialCollection> HdMaxRenderDelegate::GetMaterialCollection()
+{
+    return materialCollection;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderDelegate.h b/src/RenderDelegate/Imaging/HdMaxRenderDelegate.h
new file mode 100644
index 0000000..d36e392
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderDelegate.h
@@ -0,0 +1,191 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include "HdMaxMesh.h"
+
+#include <RenderDelegate/HdMaxDisplaySettings.h>
+#include <RenderDelegate/HdMaxMaterialCollection.h>
+#include <RenderDelegate/HdMaxRenderData.h>
+#include <RenderDelegate/RenderDelegateAPI.h>
+
+#include <pxr/imaging/hd/renderDelegate.h>
+#include <pxr/imaging/hd/resourceRegistry.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/**
+ * \brief Implementation of a render delegate mapping hydra primitive to Nitrous.
+ */
+class RenderDelegateAPI HdMaxRenderDelegate final : public HdRenderDelegate
+{
+public:
+    HdMaxRenderDelegate(HdRenderSettingsMap const& settings = {});
+    ~HdMaxRenderDelegate() override;
+
+    /**
+     * \brief Returns the map of prim paths to render data ids.
+     * \return The map of prim path to render data id.
+     */
+    const std::unordered_map<pxr::SdfPath, size_t, pxr::SdfPath::Hash>& GetRenderDataIdMap() const;
+
+    /**
+     * \brief Gets the render data associated with a given prim.
+     * \param primpath The prim to get the render data for.
+     * \return The prim's render data.
+     */
+    HdMaxRenderData& GetRenderData(const pxr::SdfPath& primpath);
+
+    /**
+     * \brief Attempt to get the render data from its last known index. Indices of render data can change (rarely) over
+     * time (for example if a prim is deactivated). This allows us to avoid a map lookup, in most
+     * cases. If the given id doesn't match the path, we fallback to using the path to find the render data.
+     * \param index The index of the render data.
+     * \param primpath The prim path of render data.
+     * \return A reference to the render data.
+     */
+    HdMaxRenderData& SafeGetRenderData(size_t index, const pxr::SdfPath& primpath);
+
+    /**
+     * \brief Return the internal index of the render data associated with a given path.
+     * Unsafe to call this method with a prim path not held by the delegate.
+     * \param path The path of the render data to get the index for.
+     * \return The internal index of the render data. Warning, internal indices can change,
+     * unless you know for sure that has not happened, use SafeGetRenderData() to retrieve
+     * back a render data from an index.
+     */
+    size_t GetRenderDataIndex(const pxr::SdfPath& path) const;
+
+    /**
+     * \brief Returns the render data associated with a given id (essentially the index
+     * in the vector).
+     * \param id The render data id.
+     * \return The render data.
+     */
+    HdMaxRenderData& GetRenderData(size_t id);
+
+    /**
+     * \brief Returns all the render data maintained by this render delegate.
+     * \return All render data.
+     */
+    std::vector<HdMaxRenderData>& GetAllRenderData();
+
+    /**
+     * \brief Returns the render data associated with visible prims only, given their visibility and
+     * the specified render tags.
+     * \param renderTags The render tags to consider.
+     * \param data The visible prims' render data.
+     */
+    void GetVisibleRenderData(const TfTokenVector& renderTags, std::vector<HdMaxRenderData*>& data);
+
+    /**
+     * \brief Returns a reference to the Max viewport display settings used by this render delegate.
+     * \return The display settings.
+     */
+    HdMaxDisplaySettings& GetDisplaySettings();
+
+    /**
+     * \brief Sets the current hydra selection.
+     * \param selection The new hydra selection to set.
+     */
+    void SetSelection(const pxr::HdSelectionSharedPtr& selection);
+
+    /**
+     * \brief Returns the current hydra selection.
+     * \return The current hydra selection.
+     */
+    const pxr::HdSelectionSharedPtr& GetSelection() const;
+
+    /**
+     * \brief Returns the selection status of a particular prim.
+     * \param path The path of the prim to get the selection status for.
+     * \return The selection status of the prim. If null, the prim can be assumed unselected.
+     */
+    const pxr::HdSelection::PrimSelectionState* GetSelectionStatus(const pxr::SdfPath& path) const;
+
+    /**
+     * \brief Primvar to 3dsMax map channel mapping options.
+     * \return The primvar mapping options.
+     */
+    MaxUsd::PrimvarMappingOptions& GetPrimvarMappingOptions();
+
+    /**
+     * \brief Returns the material collection held by the render delegate.
+     */
+    std::shared_ptr<HdMaxMaterialCollection> GetMaterialCollection();
+
+    /**
+     * \brief Clears all cached render data.
+     */
+    void Clear();
+
+    /**
+     * \brief Destroys any obsolete render data (for example, some usdGeomSubset was removed).
+     * We keep these around until now to make sure render items get ref counted to 0 while on
+     * the main thread, it can cause issues otherwise.
+     */
+    void GarbageCollect();
+
+    /**
+     * \brief Flag the need for garbage collection.
+     */
+    void RequestGC() { mustGc = true; }
+
+    // HdRenderDelegate overrides.
+    const pxr::TfTokenVector&        GetSupportedRprimTypes() const override;
+    const pxr::TfTokenVector&        GetSupportedSprimTypes() const override;
+    const pxr::TfTokenVector&        GetSupportedBprimTypes() const override;
+    pxr::HdRenderParam*              GetRenderParam() const override;
+    pxr::HdResourceRegistrySharedPtr GetResourceRegistry() const override;
+    pxr::HdRenderPassSharedPtr
+    CreateRenderPass(pxr::HdRenderIndex* index, pxr::HdRprimCollection const& collection) override;
+    pxr::HdInstancer*
+                  CreateInstancer(pxr::HdSceneDelegate* delegate, pxr::SdfPath const& id) override;
+    void          DestroyInstancer(pxr::HdInstancer* instancer) override;
+    pxr::HdRprim* CreateRprim(pxr::TfToken const& typeId, pxr::SdfPath const& rPrimId) override;
+    void          DestroyRprim(pxr::HdRprim* rPrim) override;
+    pxr::HdSprim* CreateSprim(pxr::TfToken const& typeId, pxr::SdfPath const& sprimId) override;
+    pxr::HdSprim* CreateFallbackSprim(pxr::TfToken const& typeId) override;
+    void          DestroySprim(pxr::HdSprim* sprim) override;
+    pxr::HdBprim* CreateBprim(pxr::TfToken const& typeId, pxr::SdfPath const& bprimId) override;
+    pxr::HdBprim* CreateFallbackBprim(pxr::TfToken const& typeId) override;
+    void          DestroyBprim(pxr::HdBprim* bprim) override;
+    void          CommitResources(pxr::HdChangeTracker* tracker) override;
+
+private:
+    static const TfTokenVector SUPPORTED_RPRIM_TYPES;
+    static const TfTokenVector SUPPORTED_SPRIM_TYPES;
+    static const TfTokenVector SUPPORTED_BPRIM_TYPES;
+
+    // Keep the nitrous render data in a vector for fast iteration / minimizing cache misses.
+    std::vector<HdMaxRenderData>                                 renderDataVector;
+    std::unordered_map<pxr::SdfPath, size_t, pxr::SdfPath::Hash> renderDataIndexMap;
+    /// The meshes backing the render items.
+    std::unordered_map<pxr::SdfPath, std::unique_ptr<HdMaxMesh>, pxr::SdfPath::Hash> meshes;
+    /// 3dsMax viewport display settings.
+    HdMaxDisplaySettings displaySettings;
+    /// A material collection, once render, all the stages material's are held
+    /// in this collection.
+    std::shared_ptr<HdMaxMaterialCollection> materialCollection;
+    // Primvar -> 3dsMax channel mapping options.
+    MaxUsd::PrimvarMappingOptions primvarMappingOptions;
+    /// Flag indicating we have some render data waiting to be deleted from the main thread.
+    /// The destruction itself happens from GarbageCollect() call.
+    bool mustGc = false;
+    /// The active selection to be displayed when rendering.
+    pxr::HdSelectionSharedPtr activeSelection;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderPass.cpp b/src/RenderDelegate/Imaging/HdMaxRenderPass.cpp
new file mode 100644
index 0000000..fd12fc6
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderPass.cpp
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxRenderPass.h"
+
+#include "HdMaxRenderDelegate.h"
+
+#include <pxr/base/trace/trace.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+HdMaxRenderPass::HdMaxRenderPass(HdRenderIndex* index, HdRprimCollection const& collection)
+    : HdRenderPass(index, collection)
+{
+}
+
+void HdMaxRenderPass::_Execute(
+    HdRenderPassStateSharedPtr const& renderPassState,
+    TfTokenVector const&              renderTags)
+{
+    TRACE_FUNCTION();
+
+    bool authoredTagsChanged = false;
+    auto ver = GetRenderIndex()->GetChangeTracker().GetRenderTagVersion();
+    if (ver != authoredTagsVer) {
+        authoredTagsChanged = true;
+        authoredTagsVer = ver;
+    }
+
+    // Active render tags have changed, flag the render data for display accordingly.
+    if (prevRenderTags != renderTags || authoredTagsChanged) {
+        HdMaxRenderDelegate* renderDelegate
+            = static_cast<HdMaxRenderDelegate*>(GetRenderIndex()->GetRenderDelegate());
+        for (auto& rd : renderDelegate->GetAllRenderData()) {
+            const auto&      id = rd.rPrimPath;
+            HdSceneDelegate* sceneDelegate = GetRenderIndex()->GetSceneDelegateForRprim(id);
+            auto             renderTag = sceneDelegate->GetRenderTag(id);
+            bool             renderTagActive
+                = std::find(renderTags.begin(), renderTags.end(), renderTag) != renderTags.end();
+            rd.renderTagActive = renderTagActive;
+        }
+        prevRenderTags = renderTags;
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderPass.h b/src/RenderDelegate/Imaging/HdMaxRenderPass.h
new file mode 100644
index 0000000..c84a770
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderPass.h
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/imaging/hd/renderPass.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+/**
+ * \brief A simple render pass for Hydra to Nitrous bridge.
+ */
+class HdMaxRenderPass final : public HdRenderPass
+{
+public:
+    HdMaxRenderPass(HdRenderIndex* index, HdRprimCollection const& collection);
+
+protected:
+    void _Execute(
+        HdRenderPassStateSharedPtr const& renderPassState,
+        TfTokenVector const&              renderTags) override;
+
+    void _MarkCollectionDirty() override { }
+
+    /// Keep track of used render tags, to react to changes.
+    TfTokenVector prevRenderTags;
+    /// Keep track of the versioning for authored render tags so
+    /// that we can react to changes.
+    unsigned authoredTagsVer = 1;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderTask.cpp b/src/RenderDelegate/Imaging/HdMaxRenderTask.cpp
new file mode 100644
index 0000000..c7e1859
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderTask.cpp
@@ -0,0 +1,80 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HdMaxRenderTask.h"
+
+#include <pxr/imaging/hd/renderDelegate.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+void HdMaxRenderTask::Sync(
+    pxr::HdSceneDelegate* delegate,
+    pxr::HdTaskContext*   ctx,
+    pxr::HdDirtyBits*     dirtyBits)
+{
+    HdDirtyBits bits = *dirtyBits;
+
+    if (bits & HdChangeTracker::DirtyCollection) {
+        VtValue val = delegate->Get(GetId(), HdTokens->collection);
+
+        HdRprimCollection collection = val.Get<HdRprimCollection>();
+
+        // Check for cases where the collection is empty (i.e. default
+        // constructed).  To do this, the code looks at the root paths,
+        // if it is empty, the collection doesn't refer to any prims at
+        // all.
+        if (collection.GetName().IsEmpty()) {
+            pass.reset();
+        } else {
+            if (!pass) {
+                HdRenderIndex&    index = delegate->GetRenderIndex();
+                HdRenderDelegate* renderDelegate = index.GetRenderDelegate();
+                pass = renderDelegate->CreateRenderPass(&index, collection);
+            } else {
+                pass->SetRprimCollection(collection);
+            }
+        }
+    }
+
+    if ((*dirtyBits) & HdChangeTracker::DirtyRenderTags) {
+        renderTags = _GetTaskRenderTags(delegate);
+    }
+
+    if (pass) {
+        pass->Sync();
+    }
+}
+
+void HdMaxRenderTask::Prepare(pxr::HdTaskContext* ctx, pxr::HdRenderIndex* renderIndex)
+{
+    if (!renderPassState) {
+        HdRenderDelegate* renderDelegate = renderIndex->GetRenderDelegate();
+        renderPassState = renderDelegate->CreateRenderPassState();
+    }
+}
+
+void HdMaxRenderTask::Execute(pxr::HdTaskContext* ctx)
+{
+    if (!TF_VERIFY(renderPassState)) {
+        return;
+    }
+    if (pass) {
+        pass->Execute(renderPassState, GetRenderTags());
+    }
+}
+
+const TfTokenVector& HdMaxRenderTask::GetRenderTags() const { return renderTags; }
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxRenderTask.h b/src/RenderDelegate/Imaging/HdMaxRenderTask.h
new file mode 100644
index 0000000..f9e2bcf
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxRenderTask.h
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/imaging/hd/renderPass.h>
+#include <pxr/imaging/hd/task.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class HdMaxRenderTask : public HdTask
+{
+public:
+    HdMaxRenderTask(HdSceneDelegate* delegate, SdfPath id)
+        : HdTask(id)
+    {
+    }
+
+    // HdTask overrides.
+    void Sync(HdSceneDelegate* delegate, HdTaskContext* ctx, HdDirtyBits* dirtyBits) override;
+    void Prepare(HdTaskContext* ctx, HdRenderIndex* renderIndex) override;
+    void Execute(HdTaskContext* ctx) override;
+    const TfTokenVector& GetRenderTags() const override;
+
+private:
+    HdRenderPassSharedPtr      pass;
+    HdRenderPassStateSharedPtr renderPassState;
+    TfTokenVector              renderTags;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxTaskController.cpp b/src/RenderDelegate/Imaging/HdMaxTaskController.cpp
new file mode 100644
index 0000000..5a52b60
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxTaskController.cpp
@@ -0,0 +1,164 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+
+#include "HdMaxTaskController.h"
+
+#include "HdMaxRenderTask.h"
+
+#include <pxr/imaging/hd/renderDelegate.h>
+#include <pxr/imaging/hd/sceneDelegate.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEFINE_PRIVATE_TOKENS(
+    _tokens,
+    // global camera
+    (camera)(renderTags));
+
+VtValue HdMaxTaskController::_Delegate::Get(SdfPath const& id, TfToken const& key)
+{
+    _ValueCache* vcache = TfMapLookupPtr(_valueCacheMap, id);
+    VtValue      ret;
+    if (vcache && TfMapLookup(*vcache, key, &ret)) {
+        return ret;
+    }
+    TF_CODING_ERROR("%s:%s doesn't exist in the value cache\n", id.GetText(), key.GetText());
+    return VtValue();
+}
+
+VtValue HdMaxTaskController::_Delegate::GetCameraParamValue(SdfPath const& id, TfToken const& key)
+{
+    return Get(id, key);
+}
+
+bool HdMaxTaskController::_Delegate::IsEnabled(TfToken const& option) const
+{
+    return HdSceneDelegate::IsEnabled(option);
+}
+
+TfTokenVector HdMaxTaskController::_Delegate::GetTaskRenderTags(SdfPath const& taskId)
+{
+    if (HasParameter(taskId, _tokens->renderTags)) {
+        return GetParameter<TfTokenVector>(taskId, _tokens->renderTags);
+    }
+    return TfTokenVector();
+}
+
+HdMaxTaskController::HdMaxTaskController(HdRenderIndex* renderIndex, SdfPath const& controllerId)
+    : _index(renderIndex)
+    , _controllerId(controllerId)
+    , _delegate(renderIndex, controllerId)
+{
+    _CreateRenderGraph();
+}
+
+HdMaxTaskController::~HdMaxTaskController()
+{
+    for (auto const& id : _renderTaskIds) {
+        GetRenderIndex()->RemoveTask(id);
+    }
+}
+
+void HdMaxTaskController::_CreateRenderGraph()
+{
+    _renderTaskIds.push_back(_CreateRenderTask(TfToken()));
+}
+
+SdfPath HdMaxTaskController::_CreateRenderTask(const TfToken& materialTag)
+{
+    auto taskId = _GetRenderTaskPath(materialTag);
+    GetRenderIndex()->InsertTask<pxr::HdMaxRenderTask>(&_delegate, taskId);
+
+    HdRprimCollection collection(
+        HdTokens->geometry,
+        HdReprSelector(HdReprTokens->smoothHull),
+        /*forcedRepr*/ false,
+        materialTag);
+    collection.SetRootPath(SdfPath::AbsoluteRootPath());
+
+    // Create an initial set of render tags in case the user doesn't set any
+    TfTokenVector renderTags = { HdTokens->geometry };
+
+    _delegate.SetParameter(taskId, HdTokens->collection, collection);
+    _delegate.SetParameter(taskId, HdTokens->renderTags, renderTags);
+
+    return taskId;
+}
+
+SdfPath HdMaxTaskController::_GetRenderTaskPath(TfToken const& materialTag) const
+{
+    std::string str = TfStringPrintf("renderTask_%s", materialTag.GetText());
+    std::replace(str.begin(), str.end(), ':', '_');
+    return GetControllerId().AppendChild(TfToken(str));
+}
+
+HdTaskSharedPtrVector const HdMaxTaskController::GetRenderingTasks() const
+{
+    HdTaskSharedPtrVector tasks;
+
+    // The set of tasks we can run, in order, is:
+    // See _CreateRenderGraph for more details.
+    for (auto const& id : _renderTaskIds) {
+        tasks.push_back(GetRenderIndex()->GetTask(id));
+    }
+
+    return tasks;
+}
+
+void HdMaxTaskController::SetCollection(HdRprimCollection const& collection)
+{
+    // XXX For now we assume the application calling to set a new
+    //     collection does not know or setup the material tags and does not
+    //     split up the collection according to material tags.
+    //     In order to ignore materialTags when comparing collections we need
+    //     to copy the old tag into the new collection. Since the provided
+    //     collection is const, we need to make a not-ideal copy.
+    HdRprimCollection newCollection = collection;
+
+    for (SdfPath const& renderTaskId : _renderTaskIds) {
+        HdRprimCollection oldCollection
+            = _delegate.GetParameter<HdRprimCollection>(renderTaskId, HdTokens->collection);
+
+        TfToken const& oldMaterialTag = oldCollection.GetMaterialTag();
+        newCollection.SetMaterialTag(oldMaterialTag);
+
+        if (oldCollection == newCollection) {
+            continue;
+        }
+
+        _delegate.SetParameter(renderTaskId, HdTokens->collection, newCollection);
+        GetRenderIndex()->GetChangeTracker().MarkTaskDirty(
+            renderTaskId, HdChangeTracker::DirtyCollection);
+    }
+}
+
+void HdMaxTaskController::SetRenderTags(TfTokenVector const& renderTags)
+{
+    _renderTags = renderTags;
+
+    HdChangeTracker& tracker = GetRenderIndex()->GetChangeTracker();
+
+    for (SdfPath const& renderTaskId : _renderTaskIds) {
+        if (_delegate.GetTaskRenderTags(renderTaskId) != renderTags) {
+            _delegate.SetParameter(renderTaskId, _tokens->renderTags, renderTags);
+            tracker.MarkTaskDirty(renderTaskId, HdChangeTracker::DirtyRenderTags);
+        }
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/HdMaxTaskController.h b/src/RenderDelegate/Imaging/HdMaxTaskController.h
new file mode 100644
index 0000000..eda9ac3
--- /dev/null
+++ b/src/RenderDelegate/Imaging/HdMaxTaskController.h
@@ -0,0 +1,141 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <pxr/imaging/hd/renderIndex.h>
+#include <pxr/imaging/hd/sceneDelegate.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/**
+ * \brief Hydra task controller for Nitrous.
+ */
+class HdMaxTaskController
+{
+public:
+    HdMaxTaskController(HdRenderIndex* renderIndex, SdfPath const& controllerId);
+    ~HdMaxTaskController();
+
+    /// Return the render index this controller is bound to.
+    HdRenderIndex* GetRenderIndex() { return _index; }
+
+    /// Return the render index this controller is bound to.
+    HdRenderIndex const* GetRenderIndex() const { return _index; }
+
+    /// Return the controller's scene-graph id (prefixed to any
+    /// scene graph objects it creates).
+    SdfPath const& GetControllerId() const { return _controllerId; }
+
+    /// -------------------------------------------------------
+    /// Execution API
+
+    /// Obtain the set of tasks managed by the task controller,
+    /// for image generation. The tasks returned will be different
+    /// based on current renderer state.
+    HdTaskSharedPtrVector const GetRenderingTasks() const;
+
+    /// -------------------------------------------------------
+    /// Rendering API
+
+    /// Set the collection to be rendered.
+    void SetCollection(HdRprimCollection const& collection);
+
+    /// Set the "view" opinion of the scenes render tags.
+    /// The opinion is the base opinion for the entire scene.
+    /// Individual tasks (such as the shadow task) may
+    /// have a stronger opinion and override this opinion
+    void SetRenderTags(TfTokenVector const& renderTags);
+
+    const pxr::TfTokenVector& GetRenderTags() { return _renderTags; }
+
+private:
+    ///
+    /// This class is not intended to be copied nor moved.
+    ///
+    HdMaxTaskController(HdMaxTaskController const&) = delete;
+    HdMaxTaskController& operator=(HdMaxTaskController const&) = delete;
+    HdMaxTaskController(HdMaxTaskController&&) = delete;
+    HdMaxTaskController& operator=(HdMaxTaskController&&) = delete;
+
+    HdRenderIndex* _index;
+    SdfPath const  _controllerId;
+    TfTokenVector  _renderTags;
+
+    // Create taskController objects.
+    void _CreateRenderGraph();
+
+    // Helper functions.
+    SdfPath _CreateRenderTask(const TfToken& materialTag);
+    SdfPath _GetRenderTaskPath(TfToken const& materialTag) const;
+
+    // A private scene delegate member variable backs the tasks this
+    // controller generates. To keep _Delegate simple, the containing class
+    // is responsible for marking things dirty.
+    class _Delegate : public HdSceneDelegate
+    {
+    public:
+        _Delegate(HdRenderIndex* parentIndex, SdfPath const& delegateID)
+            : HdSceneDelegate(parentIndex, delegateID)
+        {
+        }
+        virtual ~_Delegate() = default;
+
+        // HdMaxTaskController set/get interface
+        template <typename T>
+        void SetParameter(SdfPath const& id, TfToken const& key, T const& value)
+        {
+            _valueCacheMap[id][key] = value;
+        }
+        template <typename T> T const& GetParameter(SdfPath const& id, TfToken const& key) const
+        {
+            VtValue     vParams;
+            _ValueCache vCache;
+            TF_VERIFY(
+                TfMapLookup(_valueCacheMap, id, &vCache) && TfMapLookup(vCache, key, &vParams)
+                && vParams.IsHolding<T>());
+            return vParams.Get<T>();
+        }
+        bool HasParameter(SdfPath const& id, TfToken const& key) const
+        {
+            _ValueCache vCache;
+            if (TfMapLookup(_valueCacheMap, id, &vCache) && vCache.count(key) > 0) {
+                return true;
+            }
+            return false;
+        }
+
+        // HdSceneDelegate interface
+        virtual VtValue       Get(SdfPath const& id, TfToken const& key);
+        virtual VtValue       GetCameraParamValue(SdfPath const& id, TfToken const& key);
+        virtual bool          IsEnabled(TfToken const& option) const;
+        virtual TfTokenVector GetTaskRenderTags(SdfPath const& taskId);
+
+    private:
+        typedef TfHashMap<TfToken, VtValue, TfToken::HashFunctor> _ValueCache;
+        typedef TfHashMap<SdfPath, _ValueCache, SdfPath::Hash>    _ValueCacheMap;
+        _ValueCacheMap                                            _valueCacheMap;
+    };
+    _Delegate _delegate;
+
+    // Generated tasks.
+    SdfPathVector _renderTaskIds;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/Imaging/PrimSelection.fx b/src/RenderDelegate/Imaging/PrimSelection.fx
new file mode 100644
index 0000000..5128d62
--- /dev/null
+++ b/src/RenderDelegate/Imaging/PrimSelection.fx
@@ -0,0 +1,171 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// Shader used to display selection on USD prims in the viewport. Works by
+// Looking at the COLOR vertex buffer, vertices with COLOR values over 0.5 are 
+// assumed to be selected. Selection is displayed using wireframe, with a 
+// configurable color (alpha is supported).
+
+// Configurable wire color.
+float4 LineColor = float4(1,0,0,1.0);
+// Give the selection wireframe some depth bias, to make sure it's displayed on top
+// of the shaded geometry.
+float ZBias = 0.0001;
+
+float4x4 __object_to_ndc : WorldViewProjection;
+float4x4 worldViewProjection : WorldViewProjection;
+float2 ViewSize : viewportpixelsize;
+
+float4 iPcPriority(float3 pm, float zPriority, float4x4 worldViewProjection)
+{
+	float4 P = mul(float4(pm, 1), worldViewProjection);
+	P.z -= abs(zPriority) * sign(P.w);
+	return P;
+}
+
+// From 3dsMax vertex buffers.
+struct appdata
+{
+	float3 vertex : POSITION;
+	float3 selected : COLOR;
+};
+
+// Vertex shader to geometry shader.
+struct v2g
+{
+	float4 vertex : SV_POSITION;
+	float3 selected : COLOR;
+};
+
+// Geometry shader to fragment shader.
+struct g2f
+{	
+	float4 vertex : SV_POSITION;
+	float3 selected : COLOR;
+};
+
+v2g vert (appdata v)
+{
+	v2g o;
+	o.vertex = iPcPriority(v.vertex, ZBias, __object_to_ndc);
+	o.selected = v.selected;
+	float4 Po = float4(v.vertex.xyz,1);
+	return o;
+}
+
+float3 instancedPosition( float3 pm, float4 mtx0, float4 mtx1, float4 mtx2 ) 
+{ 
+	float4x4 world = {float4(mtx0.x, mtx1.x, mtx2.x, 0), 
+	float4(mtx0.y, mtx1.y, mtx2.y, 0), 
+	float4(mtx0.z, mtx1.z, mtx2.z, 0), 
+	float4(mtx0.w, mtx1.w, mtx2.w, 1)}; 
+	// For instancing, transform the input position.
+	float4 HPm = float4(pm, 1.0f);
+	HPm = mul(HPm, world);
+	return HPm.xyz; 
+} 
+
+v2g vertInstanced (appdata v, float4 row0 : Texcoord10, float4 row1 : Texcoord11, float4 row2 : Texcoord12)
+{
+	v2g o;
+	const float3 pmInstance = instancedPosition(v.vertex, row0, row1, row2);
+	o.vertex = iPcPriority(pmInstance, ZBias, __object_to_ndc);
+	o.selected = v.selected;
+	float4 Po = float4(v.vertex.xyz,1);
+	return o;
+}
+
+[maxvertexcount(6)]
+void triToLines(triangle v2g input[3], inout LineStream<g2f> outStream)
+{
+	g2f edge1[2];	
+	edge1[0].vertex = input[0].vertex;
+	edge1[0].selected = input[0].selected;
+	edge1[1].vertex = input[1].vertex;
+	edge1[1].selected = input[1].selected;
+	outStream.Append(edge1[0]);
+	outStream.Append(edge1[1]);
+	outStream.RestartStrip();
+	
+	g2f edge2[2];
+	edge2[0].vertex = input[1].vertex; 
+	edge2[0].selected = input[1].selected;	
+	edge2[1].vertex = input[2].vertex;
+	edge2[1].selected = input[2].selected;
+	outStream.Append(edge2[0]);
+	outStream.Append(edge2[1]);
+	outStream.RestartStrip();
+	
+	g2f edge3[2];
+	edge3[0].vertex = input[2].vertex;
+	edge3[0].selected = input[2].selected;
+	edge3[1].vertex = input[0].vertex;
+	edge3[1].selected = input[0].selected;	
+	outStream.Append(edge3[0]);
+	outStream.Append(edge3[1]);
+	outStream.RestartStrip();
+}
+
+float4 fragLine(g2f input) : SV_Target
+{
+	if (input.selected.x < 0.5)
+	{
+		discard;
+	}
+	return LineColor;
+}
+
+// Display triangle wire frame of shaded geometry.
+technique11 Shaded
+{
+	pass P0
+	{
+		SetVertexShader(CompileShader(vs_5_0, vert()));
+		SetGeometryShader(CompileShader(gs_5_0, triToLines()));
+		SetPixelShader(CompileShader(ps_5_0, fragLine()));
+	}
+}
+
+// Display selected lines in a different color.
+technique11 Wire
+{
+	pass P0
+	{
+		SetVertexShader(CompileShader(vs_5_0, vert()));
+		SetPixelShader(CompileShader(ps_5_0, fragLine()));
+	}
+}
+
+// Display triangle wire frame of shaded instanced geometry.
+technique11 Shaded_Instanced
+{
+	pass P0
+	{
+		SetVertexShader(CompileShader(vs_5_0, vertInstanced()));
+		SetGeometryShader(CompileShader(gs_5_0, triToLines()));
+		SetPixelShader(CompileShader(ps_5_0, fragLine()));
+	}
+}
+
+// Display instanced selected lines in a different color.
+technique11 Wire_Instanced
+{
+	pass P0
+	{
+		SetVertexShader(CompileShader(vs_5_0, vertInstanced()));
+		SetPixelShader(CompileShader(ps_5_0, fragLine()));
+	}
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/MaxRenderGeometryFacade.cpp b/src/RenderDelegate/MaxRenderGeometryFacade.cpp
new file mode 100644
index 0000000..0bb0d24
--- /dev/null
+++ b/src/RenderDelegate/MaxRenderGeometryFacade.cpp
@@ -0,0 +1,159 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxRenderGeometryFacade.h"
+
+MaxRenderGeometryFacade::MaxRenderGeometryFacade(
+    MaxSDK::Graphics::SimpleRenderGeometry* simpleRenderGeometry)
+{
+    this->simpleRenderGeometry = simpleRenderGeometry;
+    this->simpleRenderGeometry->AddRef();
+}
+
+MaxRenderGeometryFacade::MaxRenderGeometryFacade(
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+        instanceGeometry,
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+        instancedSelectionGeometry)
+{
+    this->instanceRenderGeometry = instanceGeometry;
+    this->instanceRenderGeometry->AddRef();
+    this->instanceSelectionRenderGeometry = instancedSelectionGeometry;
+    this->instanceSelectionRenderGeometry->AddRef();
+}
+
+MaxRenderGeometryFacade::~MaxRenderGeometryFacade()
+{
+    if (this->instanceRenderGeometry) {
+        this->instanceRenderGeometry->Release();
+        this->instanceSelectionRenderGeometry->Release();
+        return;
+    }
+    this->simpleRenderGeometry->Release();
+}
+
+void MaxRenderGeometryFacade::SetIndexBuffer(
+    const MaxSDK::Graphics::IndexBufferHandle& indexBuffer) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->SetIndexBuffer(indexBuffer);
+        return;
+    }
+    instanceRenderGeometry->SetIndexBuffer(indexBuffer);
+    instanceSelectionRenderGeometry->SetIndexBuffer(indexBuffer);
+}
+
+void MaxRenderGeometryFacade::AddVertexBuffer(
+    const MaxSDK::Graphics::VertexBufferHandle& vertexBuffer) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->AddVertexBuffer(vertexBuffer);
+        return;
+    }
+    instanceRenderGeometry->AddVertexBuffer(vertexBuffer);
+    instanceSelectionRenderGeometry->AddVertexBuffer(vertexBuffer);
+}
+
+void MaxRenderGeometryFacade::RemoveVertexBuffer(size_t index) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->RemoveVertexBuffer(index);
+        return;
+    }
+    instanceRenderGeometry->RemoveVertexBuffer(index);
+    instanceSelectionRenderGeometry->RemoveVertexBuffer(index);
+}
+
+size_t MaxRenderGeometryFacade::GetVertexBufferCount() const
+{
+    if (simpleRenderGeometry) {
+        return simpleRenderGeometry->GetVertexBufferCount();
+    }
+    return instanceRenderGeometry->GetVertexBufferCount();
+}
+
+MaxSDK::Graphics::VertexBufferHandle MaxRenderGeometryFacade::GetVertexBuffer(size_t index) const
+{
+    if (simpleRenderGeometry) {
+        return simpleRenderGeometry->GetVertexBuffer(index);
+    }
+    return instanceRenderGeometry->GetVertexBuffer(index);
+}
+
+MaxSDK::Graphics::IndexBufferHandle MaxRenderGeometryFacade::GetIndexBuffer() const
+{
+    if (simpleRenderGeometry) {
+        return simpleRenderGeometry->GetIndexBuffer();
+    }
+    return instanceRenderGeometry->GetIndexBuffer();
+}
+
+void MaxRenderGeometryFacade::SetPrimitiveType(MaxSDK::Graphics::PrimitiveType type) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->SetPrimitiveType(type);
+        return;
+    }
+    instanceRenderGeometry->SetPrimitiveType(type);
+    instanceSelectionRenderGeometry->SetPrimitiveType(type);
+}
+
+void MaxRenderGeometryFacade::SetPrimitiveCount(size_t count) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->SetPrimitiveCount(count);
+        return;
+    }
+    instanceRenderGeometry->SetPrimitiveCount(count);
+    instanceSelectionRenderGeometry->SetPrimitiveCount(count);
+}
+
+MaxSDK::Graphics::MaterialRequiredStreams& MaxRenderGeometryFacade::GetSteamRequirement() const
+{
+    if (simpleRenderGeometry) {
+        return simpleRenderGeometry->GetSteamRequirement();
+    }
+    return instanceRenderGeometry->GetSteamRequirement();
+}
+
+void MaxRenderGeometryFacade::SetStreamRequirement(
+    const MaxSDK::Graphics::MaterialRequiredStreams& streamFormat) const
+{
+    if (simpleRenderGeometry) {
+        simpleRenderGeometry->SetSteamRequirement(streamFormat);
+        return;
+    }
+    instanceRenderGeometry->SetStreamRequirement(streamFormat);
+    instanceSelectionRenderGeometry->SetStreamRequirement(streamFormat);
+}
+
+void MaxRenderGeometryFacade::RebuildInstanceGeom(bool selectionInstances)
+{
+    auto& toRebuild = selectionInstances ? instanceSelectionRenderGeometry : instanceRenderGeometry;
+
+    const auto tmp
+        = new MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry {};
+    tmp->SetIndexBuffer(toRebuild->GetIndexBuffer());
+    for (int i = 0; i < toRebuild->GetVertexBufferCount(); ++i) {
+        tmp->AddVertexBuffer(toRebuild->GetVertexBuffer(i));
+    }
+    tmp->SetPrimitiveType(toRebuild->GetPrimitiveType());
+    tmp->SetPrimitiveCount(toRebuild->GetPrimitiveCount());
+    tmp->SetStreamRequirement(toRebuild->GetSteamRequirement());
+    tmp->AddRef();
+
+    toRebuild->Release();
+    toRebuild = tmp;
+}
diff --git a/src/RenderDelegate/MaxRenderGeometryFacade.h b/src/RenderDelegate/MaxRenderGeometryFacade.h
new file mode 100644
index 0000000..da6e51a
--- /dev/null
+++ b/src/RenderDelegate/MaxRenderGeometryFacade.h
@@ -0,0 +1,85 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <Graphics/SimpleRenderGeometry.h>
+// For instancing. Instancing SDK changed in 2023.
+#include <MaxUsd/Utilities/MaxRestrictedSupportUtils.h>
+
+/**
+ * \brief Simple facade to operate on SimpleRenderGeometry or InstanceRenderGeometry, transparently.
+ */
+class MaxRenderGeometryFacade
+{
+public:
+    MaxRenderGeometryFacade(MaxSDK::Graphics::SimpleRenderGeometry* simpleRenderGeometry);
+    MaxRenderGeometryFacade(
+        MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+            instancedGeometry,
+        MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+            instancedSelectionGeometry);
+
+    ~MaxRenderGeometryFacade();
+
+    MaxSDK::Graphics::SimpleRenderGeometry* GetSimpleRenderGeometry() const
+    {
+        return simpleRenderGeometry;
+    }
+
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+    GetInstanceRenderGeometry() const
+    {
+        return instanceRenderGeometry;
+    }
+
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+    GetInstanceSelectionRenderGeometry() const
+    {
+        return instanceSelectionRenderGeometry;
+    }
+
+    MaxSDK::Graphics::IndexBufferHandle GetIndexBuffer() const;
+    void   SetIndexBuffer(const MaxSDK::Graphics::IndexBufferHandle& indexBuffer) const;
+    void   AddVertexBuffer(const MaxSDK::Graphics::VertexBufferHandle& vertexBuffer) const;
+    void   RemoveVertexBuffer(size_t index) const;
+    size_t GetVertexBufferCount() const;
+    MaxSDK::Graphics::VertexBufferHandle GetVertexBuffer(size_t index) const;
+    void SetPrimitiveType(MaxSDK::Graphics::PrimitiveType type) const;
+    void SetPrimitiveCount(size_t count) const;
+    MaxSDK::Graphics::MaterialRequiredStreams& GetSteamRequirement() const;
+    void SetStreamRequirement(const MaxSDK::Graphics::MaterialRequiredStreams& streamFormat) const;
+
+    /**
+     * \brief Rebuilds a new InstanceDisplayGeometry object. There is a very hard to reproduce issue in nitrous
+     * where an instance geometry object can get corrupted when creating the instancing data
+     * multiple times on the same InstanceGeometryObject. Recreating a new object works around this
+     * issue. It is definitely a suspicious hack.
+     * \param selectionInstances If true, rebuilds the selection instance's geometry object.
+     */
+    void RebuildInstanceGeom(bool selectionInstances);
+
+private:
+    MaxSDK::Graphics::SimpleRenderGeometry* simpleRenderGeometry = nullptr;
+    // When instancing, we need two instance render items - one for the normal display, and one for
+    // displaying selection. Both carry the exact same indices and vertex buffers, only instances
+    // can differ (only a subset of all instances can be selected). The two render items are always
+    // kept in sync in the MaxRenderGeometryFacade.
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+        instanceRenderGeometry
+        = nullptr;
+    MaxRestrictedSDKSupport::Graphics::ViewportInstancing::InstanceDisplayGeometry*
+        instanceSelectionRenderGeometry
+        = nullptr;
+};
diff --git a/src/RenderDelegate/PrimvarInfo.h b/src/RenderDelegate/PrimvarInfo.h
new file mode 100644
index 0000000..f4d787a
--- /dev/null
+++ b/src/RenderDelegate/PrimvarInfo.h
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+//! Primvar data and interpolation, from the scene delegate
+struct PrimvarSource
+{
+    PrimvarSource(VtValue d, HdInterpolation interp)
+        : data(d)
+        , interpolation(interp)
+    {
+    }
+
+    //! a copy-on-write handle to the actual primvar buffer
+    VtValue data;
+
+    //! the interpolation mode to be used.
+    HdInterpolation interpolation;
+};
+
+//! Everything about a primvar
+struct PrimvarInfo
+{
+    PrimvarInfo(const PrimvarSource& source)
+        : source(source)
+    {
+    }
+
+    PrimvarSource source;
+};
+
+using PrimvarInfoMap
+    = std::unordered_map<TfToken, std::unique_ptr<PrimvarInfo>, TfToken::HashFunctor>;
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/RenderDelegate/RenderDelegate.rc b/src/RenderDelegate/RenderDelegate.rc
new file mode 100644
index 0000000..aea72fe
--- /dev/null
+++ b/src/RenderDelegate/RenderDelegate.rc
@@ -0,0 +1,89 @@
+// Microsoft Visual C++ generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// SHADER
+//
+
+IDR_PRIM_SELECTION_SHADER SHADER "Imaging\\PrimSelection.fx"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// String Table
+//
+
+STRINGTABLE
+BEGIN
+    IDS_RENDERDELEGATE_BUILD_MATERIALS_PROGRESS_TITLE "Building Materials..."
+    IDS_RENDERDELEGATE_BUILD_STD_VP_MATERIALS_PROGRESS_TITLE "Building Viewport Materials..."
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (Canada) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENC)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_CAN
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE 
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (Canada) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+#include "VersionOverrides.h"
+#include "../USDComponentVersion.r"
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
\ No newline at end of file
diff --git a/src/RenderDelegate/RenderDelegate.vcxproj b/src/RenderDelegate/RenderDelegate.vcxproj
new file mode 100644
index 0000000..76664d0
--- /dev/null
+++ b/src/RenderDelegate/RenderDelegate.vcxproj
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>RenderDelegate</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{7b707dd2-355b-4232-89e8-f92a821b71b3}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest>true</EmbedManifest>
+    <TargetName>RenderDelegate</TargetName>
+    <TargetExt>.dll</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>RENDERDELEGATE_EXPORTS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(UfeInc);$(UfeUsdInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)/renderdelegate_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(UfeLib);$(UfeUsdLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>GraphicsDriver.lib;GraphicsUtility.lib;core.lib;geom.lib;mesh.lib;maxutil.lib;paramblk2.lib;optimesh.lib;DataBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)$(TargetName).lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="PrimvarInfo.h" />
+    <ClInclude Include="DebugCodes.h" />
+    <ClInclude Include="RenderDelegateAPI.h" />
+    <ClInclude Include="renderdelegate_banned.h" />
+    <ClInclude Include="HdMaxDisplayPreferences.h" />
+    <ClInclude Include="HdMaxEngine.h" />
+    <ClInclude Include="Imaging\HdMaxMesh.h" />
+    <ClInclude Include="Imaging\HdMaxRenderDelegate.h" />
+    <ClInclude Include="Imaging\HdMaxRenderPass.h" />
+    <ClInclude Include="Imaging\HdMaxRenderTask.h" />
+    <ClInclude Include="Imaging\HdMaxTaskController.h" />
+    <ClInclude Include="HdMaxMaterialCollection.h" />
+    <ClInclude Include="MaxRenderGeometryFacade.h" />
+    <ClInclude Include="HdMaxColorMaterial.h" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="Sampler.h" />
+    <ClInclude Include="HdMaxRenderData.h" />
+    <ClInclude Include="Imaging\HdMaxInstancer.h" />
+    <ClInclude Include="Imaging\HdMaxMaterial.h" />
+    <ClInclude Include="HdMaxDisplaySettings.h" />
+    <ClInclude Include="Imaging\HdMaxExtComputation.h" />
+    <ClInclude Include="HdMaxInstanceGen.h" />
+    <ClInclude Include="HdMaxChangeTracker.h" />
+    <ClInclude Include="HdMaxConsolidator.h" />
+    <ClInclude Include="SelectionRenderItem.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DebugCodes.cpp" />
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="HdMaxDisplayPreferences.cpp" />
+    <ClCompile Include="HdMaxEngine.cpp" />
+    <ClCompile Include="Imaging\HdMaxMesh.cpp" />
+    <ClCompile Include="Imaging\HdMaxRenderDelegate.cpp" />
+    <ClCompile Include="Imaging\HdMaxRenderPass.cpp" />
+    <ClCompile Include="Imaging\HdMaxRenderTask.cpp" />
+    <ClCompile Include="Imaging\HdMaxTaskController.cpp" />
+    <ClCompile Include="Imaging\HdMaxInstancer.cpp" />
+    <ClCompile Include="Imaging\HdMaxMaterial.cpp" />
+    <ClCompile Include="HdMaxDisplaySettings.cpp" />
+    <ClCompile Include="Imaging\HdMaxExtComputation.cpp" />
+    <ClCompile Include="HdMaxMaterialCollection.cpp" />
+    <ClCompile Include="MaxRenderGeometryFacade.cpp" />
+    <ClCompile Include="HdMaxColorMaterial.cpp" />
+    <ClCompile Include="Sampler.cpp" />
+    <ClCompile Include="HdMaxInstanceGen.cpp" />
+    <ClCompile Include="HdMaxConsolidator.cpp" />
+    <ClCompile Include="HdMaxRenderData.cpp" />
+    <ClCompile Include="SelectionRenderItem.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="RenderDelegate.rc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/RenderDelegate/RenderDelegate.vcxproj.filters b/src/RenderDelegate/RenderDelegate.vcxproj.filters
new file mode 100644
index 0000000..bd131d3
--- /dev/null
+++ b/src/RenderDelegate/RenderDelegate.vcxproj.filters
@@ -0,0 +1,173 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="Source Files\Imaging">
+      <UniqueIdentifier>{2a96d255-af9e-48ff-83f2-89276ad4795a}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Imaging">
+      <UniqueIdentifier>{6b321ef2-bf61-4985-860b-75359b52348f}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="HdMaxEngine.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxConsolidator.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxInstanceGen.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxRenderData.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxExtComputation.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxInstancer.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxMaterial.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxMesh.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxRenderDelegate.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxRenderPass.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxRenderTask.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="Imaging\HdMaxTaskController.cpp">
+      <Filter>Source Files\Imaging</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxMaterialCollection.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxRenderGeometryFacade.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxColorMaterial.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="SelectionRenderItem.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxDisplaySettings.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="HdMaxDisplayPreferences.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Sampler.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DebugCodes.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="HdMaxDisplaySettings.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxEngine.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxChangeTracker.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxConsolidator.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxInstanceGen.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxRenderData.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="renderdelegate_banned.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="RenderDelegateAPI.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxTaskController.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxExtComputation.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxInstancer.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxMaterial.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxMesh.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxRenderDelegate.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxRenderPass.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="Imaging\HdMaxRenderTask.h">
+      <Filter>Header Files\Imaging</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxMaterialCollection.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxRenderGeometryFacade.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxColorMaterial.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="SelectionRenderItem.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="HdMaxDisplayPreferences.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="PrimvarInfo.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Sampler.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DebugCodes.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="resource.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="RenderDelegate.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/RenderDelegate/RenderDelegateAPI.h b/src/RenderDelegate/RenderDelegateAPI.h
new file mode 100644
index 0000000..f6f0980
--- /dev/null
+++ b/src/RenderDelegate/RenderDelegateAPI.h
@@ -0,0 +1,22 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#ifdef RENDERDELEGATE_EXPORTS
+#define RenderDelegateAPI __declspec(dllexport)
+#else
+#define RenderDelegateAPI __declspec(dllimport)
+#endif
\ No newline at end of file
diff --git a/src/RenderDelegate/Sampler.cpp b/src/RenderDelegate/Sampler.cpp
new file mode 100644
index 0000000..2c2f343
--- /dev/null
+++ b/src/RenderDelegate/Sampler.cpp
@@ -0,0 +1,147 @@
+//
+// Copyright 2017 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+
+#include "Sampler.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/*! \brief  The constructor takes a reference to a buffer source. The data is
+            owned externally;
+
+    The caller is responsible for ensuring the buffer is alive while Sample() is being called.
+
+    \param buffer The buffer being sampled.
+*/
+HdMaxBufferSampler::HdMaxBufferSampler(HdVtBufferSource const& buffer)
+    : _buffer(buffer)
+{
+}
+
+/*! \brief  Sample the buffer at given element index
+
+    Sample the buffer at element index \p index, and write the sample to
+    \p value.Interpret \p value as having arity \p numComponents, each of
+    type \p componentType.These parameters may not match the datatype
+    declaration of the underlying buffer, in which case Sample returns
+    false.Sample also returns false if \p index is out of bounds.
+
+    For example, to sample data as GfVec3, \p dataType would be
+    HdTupleType{ HdTypeFloatVec3, 1 }.
+
+    \param index The element index to sample.
+    \param value The memory to write the value to(only written on success).
+    \param dataType The HdTupleType describing element values.
+
+    \return True if the value was successfully sampled.
+*/
+bool HdMaxBufferSampler::Sample(int index, void* value, HdTupleType dataType) const
+{
+    // Sanity checks: index is within the bounds of buffer,
+    // and the sample type and buffer type (defined by the dataType)
+    // are the same.
+    if (_buffer.GetNumElements() <= (size_t)index || _buffer.GetTupleType() != dataType) {
+        return false;
+    }
+
+    // Calculate the element's byte offset in the array.
+    size_t elemSize = HdDataSizeOfTupleType(dataType);
+    size_t offset = elemSize * index;
+
+    // Equivalent to:
+    // *static_cast<ElementType*>(value) =
+    //     static_cast<ElementType*>(_buffer.GetData())[index];
+    memcpy_s(value, elemSize, static_cast<const uint8_t*>(_buffer.GetData()) + offset, elemSize);
+    return true;
+}
+
+template <typename T>
+static void
+_InterpolateImpl(void* out, void** samples, float* weights, size_t sampleCount, short numComponents)
+{
+    // This is an implementation of a general blend of samples:
+    // out = sum_j { sample[j] * weights[j] }.
+    // Since the vector length comes in as a parameter, and not part
+    // of the type, the blend is implemented per component.
+    for (short i = 0; i < numComponents; ++i) {
+        static_cast<T*>(out)[i] = 0;
+        for (size_t j = 0; j < sampleCount; ++j) {
+#pragma warning(push)
+#pragma warning(disable : 4244)
+            static_cast<T*>(out)[i] += static_cast<T*>(samples[j])[i] * weights[j];
+#pragma warning(push)
+        }
+    }
+}
+
+/*! \brief  Utility function for derived classes: combine multiple samples with
+            blend weights: \p out = sum_i { \p samples[i] * \p weights[i] }.
+
+    \param out The memory to write the output to (only written on success).
+    \param samples The array of sample pointers (length \p sampleCount).
+    \param weights The array of sample weights (length \p sampleCount).
+    \param sampleCount The number of samples to combine.
+    \param dataType The HdTupleType describing element values.
+
+    \return True if the samples were successfully combined.
+*/
+bool HdMaxPrimvarSampler::_Interpolate(
+    void*       out,
+    void**      samples,
+    float*      weights,
+    size_t      sampleCount,
+    HdTupleType dataType)
+{
+    // Combine maps from component type tag to C++ type, and delegates to
+    // the templated _InterpolateImpl.
+
+    // Combine number of components in the underlying type and tuple arity.
+    short numComponents = short(HdGetComponentCount(dataType.type) * dataType.count);
+
+    HdType componentType = HdGetComponentType(dataType.type);
+
+    switch (componentType) {
+    case HdTypeBool:
+        /* This function isn't meaningful on boolean types. */
+        return false;
+    case HdTypeInt8: _InterpolateImpl<char>(out, samples, weights, sampleCount, numComponents);
+    case HdTypeInt16:
+        _InterpolateImpl<short>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    case HdTypeUInt16:
+        _InterpolateImpl<unsigned short>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    case HdTypeInt32:
+        _InterpolateImpl<int>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    case HdTypeUInt32:
+        _InterpolateImpl<unsigned int>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    case HdTypeFloat:
+        _InterpolateImpl<float>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    case HdTypeDouble:
+        _InterpolateImpl<double>(out, samples, weights, sampleCount, numComponents);
+        return true;
+    default:
+        TF_CODING_ERROR(
+            "Unsupported type '%s' passed to _Interpolate", TfEnum::GetName(componentType).c_str());
+        return false;
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/Sampler.h b/src/RenderDelegate/Sampler.h
new file mode 100644
index 0000000..551644f
--- /dev/null
+++ b/src/RenderDelegate/Sampler.h
@@ -0,0 +1,164 @@
+//
+// Copyright 2016 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// © 2023 Autodesk, Inc. All rights reserved.
+//
+#pragma once
+
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/matrix4f.h>
+#include <pxr/base/gf/quath.h>
+#include <pxr/base/gf/vec2d.h>
+#include <pxr/base/gf/vec2f.h>
+#include <pxr/base/gf/vec2i.h>
+#include <pxr/base/gf/vec3d.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec3i.h>
+#include <pxr/base/gf/vec4d.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/base/gf/vec4h.h>
+#include <pxr/base/gf/vec4i.h>
+#include <pxr/imaging/hd/vtBufferSource.h>
+#include <pxr/pxr.h>
+
+#include <cstddef>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/*! \brief  A utility class that helps map between C++ types and Hd type tags.
+    \class  HdMaxTypeHelper
+*/
+class HdMaxTypeHelper
+{
+public:
+    //! Define a type that can hold one sample of any primvar.
+    using PrimvarTypeContainer = char[sizeof(GfMatrix4d)];
+
+    /*! \brief  Return the HdTupleType corresponding to the given C++ type.
+     */
+    template <typename T> static HdTupleType GetTupleType();
+};
+
+// Define template specializations of HdMaxTypeHelper methods for
+// all our supported types...
+#define TYPE_HELPER(T, type)                                          \
+    template <> inline HdTupleType HdMaxTypeHelper::GetTupleType<T>() \
+    {                                                                 \
+        return HdTupleType { type, 1 };                               \
+    }
+
+TYPE_HELPER(bool, HdTypeBool)
+TYPE_HELPER(char, HdTypeInt8)
+TYPE_HELPER(short, HdTypeInt16)
+TYPE_HELPER(unsigned short, HdTypeUInt16)
+TYPE_HELPER(int, HdTypeInt32)
+TYPE_HELPER(GfVec2i, HdTypeInt32Vec2)
+TYPE_HELPER(GfVec3i, HdTypeInt32Vec3)
+TYPE_HELPER(GfVec4i, HdTypeInt32Vec4)
+TYPE_HELPER(unsigned int, HdTypeUInt32)
+TYPE_HELPER(float, HdTypeFloat)
+TYPE_HELPER(GfVec2f, HdTypeFloatVec2)
+TYPE_HELPER(GfVec3f, HdTypeFloatVec3)
+TYPE_HELPER(GfVec4f, HdTypeFloatVec4)
+TYPE_HELPER(double, HdTypeDouble)
+TYPE_HELPER(GfVec2d, HdTypeDoubleVec2)
+TYPE_HELPER(GfVec3d, HdTypeDoubleVec3)
+TYPE_HELPER(GfVec4d, HdTypeDoubleVec4)
+TYPE_HELPER(GfMatrix4f, HdTypeFloatMat4)
+TYPE_HELPER(GfMatrix4d, HdTypeDoubleMat4)
+TYPE_HELPER(GfVec4h, HdTypeHalfFloatVec4)
+TYPE_HELPER(GfQuath, HdTypeHalfFloatVec4)
+#undef TYPE_HELPER
+
+/*! \brief  A utility class that knows how to sample an element from a type-tagged
+            buffer (like HdVtBufferSource).
+    \class HdMaxBufferSampler
+
+    This class provides templated accessors to let the caller directly get the
+    final sample type; it also does bounds checks and type checks.
+*/
+class HdMaxBufferSampler
+{
+public:
+    HdMaxBufferSampler(HdVtBufferSource const& buffer);
+
+    bool Sample(int index, void* value, HdTupleType dataType) const;
+
+    // Convenient, templated frontend for Sample().
+    template <typename T> bool Sample(int index, T* value) const
+    {
+        return Sample(index, static_cast<void*>(value), HdMaxTypeHelper::GetTupleType<T>());
+    }
+
+private:
+    HdVtBufferSource const& _buffer; //!< Buffer source to sample
+};
+
+/*! \brief  An abstract base class that knows how to sample a primvar.
+    \class  HdMaxPrimvarSampler
+
+    An abstract base class that knows how to sample a primvar signal given
+    a ray hit coordinate: an <element, u, v> tuple. It provides templated
+    accessors, but derived classes are responsible for implementing appropriate
+    sampling or interpolation modes.
+*/
+class HdMaxPrimvarSampler
+{
+public:
+    //! Default constructor.
+    HdMaxPrimvarSampler() = default;
+    //! Default destructor.
+    virtual ~HdMaxPrimvarSampler() = default;
+
+    /*! \brief  Sample the primvar at element index and local basis coordinates.
+
+        Sample the primvar at element index \p index and local basis coordinates
+        \p u and \p v, writing the sample to \p value.  Interpret \p value as
+        having arity \p numComponents, each of type \p componentType. These
+        parameters may not match the datatype declaration of the underlying
+        buffer.
+
+        Derived classes are responsible for implementing sampling logic for
+        their particular interpolation modes. Sample returns true if a value
+        was successfully retrieved.
+
+        \param element The element index to sample.
+        \param u The u coordinate to sample.
+        \param v The v coordinate to sample.
+        \param value The memory to write the value to (only written on success).
+        \param dataType The HdTupleType describing element values.
+
+        \return True if the value was successfully sampled.
+    */
+    virtual bool
+    Sample(unsigned int element, float u, float v, void* value, HdTupleType dataType) const
+        = 0;
+
+    //! Convenient, templated frontend for Sample().
+    template <typename T> bool Sample(unsigned int element, float u, float v, T* value) const
+    {
+        return Sample(element, u, v, static_cast<void*>(value), HdMaxTypeHelper::GetTupleType<T>());
+    }
+
+protected:
+    static bool _Interpolate(
+        void*       out,
+        void**      samples,
+        float*      weights,
+        size_t      sampleCount,
+        HdTupleType dataType);
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/RenderDelegate/SelectionRenderItem.cpp b/src/RenderDelegate/SelectionRenderItem.cpp
new file mode 100644
index 0000000..121bc16
--- /dev/null
+++ b/src/RenderDelegate/SelectionRenderItem.cpp
@@ -0,0 +1,164 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "SelectionRenderItem.h"
+
+#include "HdMaxDisplayPreferences.h"
+#include "resource.h"
+
+#include <Graphics/BaseMaterialHandle.h>
+#include <Graphics/ICamera.h>
+#include <Graphics/IVirtualDevice.h>
+#include <Graphics/RenderStates.h>
+
+#include <GraphicsWindow.h>
+#include <dllutilities.h>
+#include <maxapi.h>
+
+MaxSDK::Graphics::EffectHandle         SelectionRenderItem::selectionEffect;
+MaxSDK::Graphics::EffectInstanceHandle SelectionRenderItem::selectionEffectInstance;
+std::once_flag                         initSelectionEffect;
+
+SelectionRenderItem::SelectionRenderItem(
+    const MaxSDK::Graphics::IRenderGeometryPtr& geom,
+    bool                                        wireframe)
+    : renderGeometry { geom }
+    , isWireframe { wireframe }
+{
+    // Initialize the effect, when the first usd render item is created.
+    std::call_once(initSelectionEffect, [this] {
+        selectionEffect.InitializeWithResource(
+            IDR_PRIM_SELECTION_SHADER, MaxSDK::GetHInstance(), L"SHADER");
+        selectionEffectInstance = selectionEffect.CreateEffectInstance();
+    });
+}
+
+SelectionRenderItem::~SelectionRenderItem() { }
+
+void SelectionRenderItem::Display(MaxSDK::Graphics::DrawContext& drawContext)
+{
+    if (nullptr == renderGeometry) {
+        return;
+    }
+
+    using namespace MaxSDK::Graphics;
+
+    IVirtualDevice& vd = drawContext.GetVirtualDevice();
+
+    // First, render the geometry with the assigned material.
+    BaseMaterialHandle& mtl = const_cast<BaseMaterialHandle&>(drawContext.GetMaterial());
+    mtl.Activate(drawContext);
+    const auto passCount = mtl.GetPassCount(drawContext);
+    for (unsigned pass = 0; pass < passCount; ++pass) {
+        mtl.ActivatePass(drawContext, pass);
+        renderGeometry->Display(
+            drawContext, 0, static_cast<int>(renderGeometry->GetPrimitiveCount()), 0);
+    }
+    mtl.PassesFinished(drawContext);
+    mtl.Terminate();
+
+    // Next, render selection highlighting. Selection is displayed using wireframe.
+    // Selection highlighting uses the vertex color channel. Selected geometry will
+    // have vertex colors set to 1.f, unselected geometries will have 0.f
+
+    // First, configure the blend state, the selection wire color is configurable, and we allow
+    // alpha.
+
+    // Copy the current blend state, so we can set it back after we are done.
+    const auto previousBlendState = vd.GetBlendState();
+
+    // Setup alpha blending..
+    BlendState alphaBlend;
+    alphaBlend.GetTargetBlendState(0).SetBlendEnabled(true);
+    alphaBlend.GetTargetBlendState(0).SetSourceBlend(BlendSelectorSourceAlpha);
+    alphaBlend.GetTargetBlendState(0).SetDestinationBlend(BlendSelectorInvSourceAlpha);
+    alphaBlend.GetTargetBlendState(0).SetColorBlendOperation(BlendOperationAdd);
+    alphaBlend.GetTargetBlendState(0).SetAlphaSourceBlend(BlendSelectorZero);
+    alphaBlend.GetTargetBlendState(0).SetAlphaDestinationBlend(BlendSelectorInvSourceAlpha);
+    alphaBlend.GetTargetBlendState(0).SetAlphaBlendOperation(BlendOperationAdd);
+    vd.SetBlendState(alphaBlend);
+
+    // Setup the selection effect..
+    if (!isWireframe) {
+        selectionEffect.SetActiveTechniqueByName(L"Shaded");
+    } else {
+        selectionEffect.SetActiveTechniqueByName(L"Wire");
+    }
+    const auto& selColor = HdMaxDisplayPreferences::GetInstance().GetSelectionColor();
+    selectionEffectInstance.SetFloatParameter(
+        L"LineColor", Point4(selColor.r, selColor.g, selColor.b, selColor.a));
+
+    // Configure the ZBias. This is so that our selection wireframe displays on top of other things.
+    // We need to mimic what max does for things to work correctly when mixed with regular render
+    // items. Need to const cast, ViewExp not const-correct.
+    const auto viewXp = const_cast<ViewExp*>(drawContext.GetViewExp());
+    const auto scaledZbias = GetSelectionZBias(viewXp, isWireframe);
+    selectionEffectInstance.SetFloatParameter(L"ZBias", scaledZbias);
+
+    // Apply the effect and draw!
+    selectionEffect.Activate(drawContext);
+    selectionEffectInstance.Apply(drawContext);
+    selectionEffect.ActivatePass(drawContext, 0); // We only have 1 pass.
+    renderGeometry->Display(
+        drawContext, 0, static_cast<int>(renderGeometry->GetPrimitiveCount()), 0);
+    selectionEffect.PassesFinished(drawContext);
+    selectionEffect.Terminate();
+
+    // Set back the blend state to what it was.
+    vd.SetBlendState(previousBlendState);
+}
+
+float SelectionRenderItem::GetSelectionZBias(ViewExp* viewExp, bool wireFrame)
+{
+    // To make sure that we display our selection highlighting wireframe over both
+    // shaded and wireframe geometry, we need to configure a ZBias, and scale it like
+    // 3dsMax does, based on view parameters.
+
+    const auto baseBias = wireFrame ? wireZbias : shadedZbias;
+    if (!viewExp) {
+        return baseBias;
+    }
+
+    GraphicsWindow* gw = viewExp->getGW();
+
+    using namespace MaxSDK::Graphics;
+    Matrix3  viewMatrixInv;
+    Matrix44 viewProjectionMatrix;
+    int      perspective;
+    float    hither, yon;
+    gw->getCameraMatrix(viewProjectionMatrix.m, &viewMatrixInv, &perspective, &hither, &yon);
+
+    Matrix44 viewMatrixInv44;
+    MaxWorldMatrixToMatrix44(viewMatrixInv44, viewMatrixInv);
+    Matrix44 projectionMatrix;
+    Matrix44::Multiply(projectionMatrix, viewMatrixInv44, viewProjectionMatrix);
+
+    const CameraPtr camera = ICamera::Create();
+    camera->SetProjectionMatrix(projectionMatrix);
+
+    float scaleFactor;
+    if (camera->IsPerspective()) {
+        scaleFactor = projectionMatrix.m[3][2] * 0.001f;
+    } else {
+        constexpr float viewDefaultWidth = 400.0f;
+        auto            zoom = viewExp->GetScreenScaleFactor(Point3(0.0f, 0.0f, 0.0f));
+        zoom *= static_cast<float>(gw->getWinSizeX())
+            / (static_cast<float>(gw->getWinSizeY()) * viewDefaultWidth);
+        scaleFactor = std::min(0.000075f, zoom / (yon - hither));
+    }
+    const float scaledBias = scaleFactor * baseBias;
+    return scaledBias;
+}
\ No newline at end of file
diff --git a/src/RenderDelegate/SelectionRenderItem.h b/src/RenderDelegate/SelectionRenderItem.h
new file mode 100644
index 0000000..fbbc838
--- /dev/null
+++ b/src/RenderDelegate/SelectionRenderItem.h
@@ -0,0 +1,75 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+#include <Graphics/EffectHandle.h>
+#include <Graphics/EffectInstanceHandle.h>
+#include <Graphics/ICustomRenderItem.h>
+#include <Graphics/IRenderGeometry.h>
+
+class SelectionRenderItem : public MaxSDK::Graphics::ICustomRenderItem
+{
+
+public:
+    /**
+     * \brief Constructor
+     * \param geom The geometry to be rendered in Display(). The selection highlight will be drawn using the same
+     * geometry.
+     * \param wireframe Whether this is a wireframe render item.
+     */
+    SelectionRenderItem(const MaxSDK::Graphics::IRenderGeometryPtr& geom, bool wireframe);
+
+    /**
+     * \brief Destructor
+     */
+    ~SelectionRenderItem() override;
+
+    /**
+     * \brief Draws the render item in the given context.
+     * \param drawContext
+     */
+    void Display(MaxSDK::Graphics::DrawContext& drawContext) override;
+
+    MaxSDK::Graphics::IRenderGeometryPtr GetRenderGeometry() const { return renderGeometry; }
+
+    size_t GetPrimitiveCount() const override { return renderGeometry->GetPrimitiveCount(); }
+
+    // Pure virtual. Needs an implementation.
+    void Realize(MaxSDK::Graphics::DrawContext&) override { }
+
+    /**
+     * \brief Returns the Zbias used for selection highlighting. Zbias is useful to
+     * make sure that the wireframe we display for selection, shows up over the geometry.
+     * We need different biases for displaying selection over shaded or wireframe geometry.
+     * Indeed, wireframe geometry has its own bias in 3dsmax..so we need to beat that.
+     * \param viewExp View information. In 3dsMax, the bias is scaled from the view config, we need
+     * to match that behavior.
+     * \param wireFrame True if we are requesting the Zbias for wireframe geometry.
+     * \return The ZBias to use.
+     */
+    static float GetSelectionZBias(ViewExp* viewExp, bool wireFrame);
+
+private:
+    MaxSDK::Graphics::IRenderGeometryPtr renderGeometry;
+    bool                                 isWireframe = false;
+
+    // Share a single selection effect accross all USD render items.
+    static MaxSDK::Graphics::EffectHandle         selectionEffect;
+    static MaxSDK::Graphics::EffectInstanceHandle selectionEffectInstance;
+
+    static constexpr float wireZbias = 1.0;
+    static constexpr float shadedZbias = 0.1f;
+};
\ No newline at end of file
diff --git a/src/RenderDelegate/VersionOverrides.h b/src/RenderDelegate/VersionOverrides.h
new file mode 100644
index 0000000..a428d66
--- /dev/null
+++ b/src/RenderDelegate/VersionOverrides.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Definitions specific to the present .dll
+#define USD_COMPONENT_BINARY_INTERNAL_NAME      "USDComponent\0"
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "RenderDelegate.dll\0"
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION   "3ds Max USD plugin\0"
diff --git a/src/RenderDelegate/renderdelegate_banned.h b/src/RenderDelegate/renderdelegate_banned.h
new file mode 100644
index 0000000..f5cf2b8
--- /dev/null
+++ b/src/RenderDelegate/renderdelegate_banned.h
@@ -0,0 +1,23 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usd_banned.h>
+
+#pragma warning(push)
+#pragma warning(disable : 26800)
+#include <tbb/concurrent_unordered_map.h>
+#pragma warning(pop)
diff --git a/src/RenderDelegate/resource.h b/src/RenderDelegate/resource.h
new file mode 100644
index 0000000..fad7325
--- /dev/null
+++ b/src/RenderDelegate/resource.h
@@ -0,0 +1,19 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by RenderDelegate.rc
+
+#define IDS_RENDERDELEGATE_BUILD_MATERIALS_PROGRESS_TITLE        1
+#define IDS_RENDERDELEGATE_BUILD_STD_VP_MATERIALS_PROGRESS_TITLE 2
+
+#define IDR_PRIM_SELECTION_SHADER 3
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE 101
+#define _APS_NEXT_COMMAND_VALUE  40001
+#define _APS_NEXT_CONTROL_VALUE  1001
+#define _APS_NEXT_SYMED_VALUE    101
+#endif
+#endif
diff --git a/src/Tests/Integration/USDLogoDocs.png b/src/Tests/Integration/USDLogoDocs.png
new file mode 100644
index 0000000..799af34
--- /dev/null
+++ b/src/Tests/Integration/USDLogoDocs.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2a7d85a88535308ff617d5c0c7597b588780da6cc297fa8fa31df9b3bae6b404
+size 4281
diff --git a/src/Tests/Integration/attribute_controller_test.ms b/src/Tests/Integration/attribute_controller_test.ms
new file mode 100644
index 0000000..098aaf2
--- /dev/null
+++ b/src/Tests/Integration/attribute_controller_test.ms
@@ -0,0 +1,233 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pyGf = python.import("pxr.Gf")
+
+testDataDir = (getFilenamePath (getThisScriptFilename())) + @"data\"
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/USD_ATTR_CONTROLLER_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+    
+struct usd_xformable_controller_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetMaxFile #noprompt
+        units.SystemType = #inches
+        units.SystemScale = 1
+    ),
+    
+    function attr_controller_types_test = (
+                
+        animated_values_file = (testDataDir + @"attribute_contol.usda")
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_values_file
+
+        local floatCtrl = USDFloatController()
+        local intToFloatCtrl = USDFloatController() -- through cast
+
+        local point3Ctrl = USDPoint3Controller()
+        local color3ToPoint3Ctrl = USDPoint3Controller() -- through cast
+        local point2toPoint3Ctrl = USDPoint3Controller() -- test Point3 support of 2 dimension values.
+
+        local point4Ctrl = USDPoint4Controller()
+        local color4ToPoint4Ctrl = USDPoint4Controller() -- through cast
+        local color3toPoint4Ctrl = USDPoint4Controller() -- test Point4 support of 3 dimension values.
+        
+        -- Test defaults.
+        assert_float_equal 0 floatCtrl.value
+        assert_point3_equal (Point3 0 0 0) point3Ctrl.value
+        assert_point4_equal (Point4 0 0 0 0) point4Ctrl.value
+                
+        local cubePrimPath = "/root/Cube"
+        
+        floatCtrl.USDStage = stageObject
+        floatCtrl.AttrPath = "/root/Cube.floatVal"
+        
+        intToFloatCtrl.USDStage = stageObject
+        intToFloatCtrl.AttrPath = "/root/Cube.intVal"
+        
+        point3Ctrl.USDStage = stageObject
+        point3Ctrl.AttrPath = "/root/Cube.float3Val"
+        
+        color3ToPoint3Ctrl.USDStage = stageObject
+        color3ToPoint3Ctrl.AttrPath = "/root/Cube.color3Val"
+        
+        point2toPoint3Ctrl.USDStage = stageObject
+        point2toPoint3Ctrl.AttrPath = "/root/Cube.float2Val"
+        
+        point4Ctrl.USDStage = stageObject
+        point4Ctrl.AttrPath = "/root/Cube.float4Val"
+        
+        color4ToPoint4Ctrl.USDStage = stageObject
+        color4ToPoint4Ctrl.AttrPath = "/root/Cube.color4Val"
+        
+        color3toPoint4Ctrl.USDStage = stageObject
+        color3toPoint4Ctrl.AttrPath = "/root/Cube.color3Val"
+        
+        -- Test values at the first 3 frames.
+        
+        sliderTime = 0
+        assert_float_equal 10 floatCtrl.value
+        assert_float_equal 77 intToFloatCtrl.value
+        assert_point3_equal (Point3 11 10 10) point3Ctrl.value
+        assert_point3_equal (Point3 0.5 0 0) color3ToPoint3Ctrl.value
+        assert_point3_equal (Point3 1 2 0) point2toPoint3Ctrl.value
+        assert_point4_equal (Point4 11 10 10 5) point4Ctrl.value
+        assert_point4_equal (Point4 0 1 0 0.25) color4ToPoint4Ctrl.value
+        assert_point4_equal (Point4 0.5 0 0 0) color3toPoint4Ctrl.value
+        
+        sliderTime = 1
+        assert_float_equal 20 floatCtrl.value
+        assert_float_equal 88 intToFloatCtrl.value
+        assert_point3_equal (Point3 22 20 10) point3Ctrl.value
+        assert_point3_equal (Point3 0 0.5 0) color3ToPoint3Ctrl.value
+        assert_point3_equal (Point3 10 11 0) point2toPoint3Ctrl.value
+        assert_point4_equal (Point4 22 20 10 10) point4Ctrl.value
+        assert_point4_equal (Point4 1 0 0 0.50) color4ToPoint4Ctrl.value
+        assert_point4_equal (Point4 0 0.5 0 0) color3toPoint4Ctrl.value
+        
+        sliderTime = 2
+        assert_float_equal 30 floatCtrl.value
+        assert_float_equal 99 intToFloatCtrl.value
+        assert_point3_equal (Point3 33 30 10) point3Ctrl.value
+        assert_point3_equal (Point3 0 0 0.5) color3ToPoint3Ctrl.value
+        assert_point3_equal (Point3 20 22 0) point2toPoint3Ctrl.value
+        assert_point4_equal (Point4 33 30 10 15) point4Ctrl.value
+        assert_point4_equal (Point4 0 0 1 0.75) color4ToPoint4Ctrl.value
+        assert_point4_equal (Point4 0 0 0.5 0) color3toPoint4Ctrl.value
+
+    ),
+    
+    function attr_controller_notif_changed_test = (
+                
+        animated_values_file = (testDataDir + @"attribute_contol.usda")
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_values_file
+
+        local floatCtrl = USDFloatController()
+    
+        assert_float_equal 0 floatCtrl.value
+        floatPath = "/root/Cube.floatVal"
+        floatCtrl.USDStage = stageObject
+        floatCtrl.AttrPath = floatPath
+        assert_float_equal 10 floatCtrl.value
+            
+        -- Test unwiring the params individually.
+        floatCtrl.USDStage = undefined
+        assert_float_equal 0 floatCtrl.value
+        floatCtrl.USDStage = stageObject
+        assert_float_equal 10 floatCtrl.value
+                
+        floatCtrl.AttrPath = ""
+        assert_float_equal 0 floatCtrl.value
+        floatCtrl.AttrPath = floatPath
+        assert_float_equal 10 floatCtrl.value
+        
+        -- Test invalid values (invidually)
+        floatCtrl.AttrPath = "foo"
+        assert_float_equal 0 floatCtrl.value
+        floatCtrl.AttrPath = floatPath
+        floatCtrl.USDStage = Box()
+        assert_float_equal 0 floatCtrl.value
+    ),    
+    
+    function attr_controller_save_load = (
+        
+        local testSphere = sphere pos:[0,0,10]
+        animated_values_file = (testDataDir + @"attribute_contol.usda")
+    
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_values_file
+
+        local floatCtrl = USDFloatController()
+        testSphere.radius.controller = floatCtrl
+        floatCtrl.USDStage = stageObject
+        floatCtrl.AttrPath = "/root/Cube.floatVal"
+        
+        local maxSceneSavePath = output_prefix + "sphere_float_radius_controller.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        resetMaxFile #noprompt
+        
+        -- Load the save scene, and make sure the controller still behaves..
+        loadMaxFile maxSceneSavePath useFileUnits:true quiet:true
+        
+        local savedSphere = $Sphere001
+        sliderTime = 0
+        assert_equal 10 savedSphere.radius
+        sliderTime = 1
+        assert_equal 20 savedSphere.radius
+        sliderTime = 2
+        assert_equal 30 savedSphere.radius
+        
+    ),
+    
+    function attr_controller_anim_offset = (
+        
+        local testSphere = sphere pos:[0,0,10]
+        animated_values_file = (testDataDir + @"attribute_contol.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_values_file
+
+        -- Offset the animation by 10 frames.
+        stageObject.AnimationMode = 1
+        stageObject.CustomAnimationStartFrame = 10
+        
+        local floatCtrl = USDFloatController()
+        testSphere.radius.controller = floatCtrl
+        floatCtrl.USDStage = stageObject
+        floatCtrl.AttrPath = "/root/Cube.floatVal"
+        
+        -- Validate that the offset is taken into account...
+        sliderTime = 0
+        assert_equal 10 testSphere.radius
+        sliderTime = 10
+        assert_equal 10 testSphere.radius
+        sliderTime = 11
+        assert_equal 20 testSphere.radius
+        sliderTime = 12
+        assert_equal 30 testSphere.radius
+    ),
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        attr_controller_types_test,
+        attr_controller_notif_changed_test,
+        attr_controller_save_load,
+        attr_controller_anim_offset
+    )
+)
+
+runUsdTestFixture usd_xformable_controller_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/context_test.ms b/src/Tests/Integration/context_test.ms
new file mode 100644
index 0000000..2e5a58a
--- /dev/null
+++ b/src/Tests/Integration/context_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct context_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_context_cases = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import context_test"
+        python.Execute "reload(context_test)"
+        -- Run tests.
+        python_test = python.import("context_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_context_cases
+    )
+)
+
+runUsdTestFixture context_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/context_test.py b/src/Tests/Integration/context_test.py
new file mode 100644
index 0000000..91a92b9
--- /dev/null
+++ b/src/Tests/Integration/context_test.py
@@ -0,0 +1,372 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+import usd_test_helpers
+
+from pymxs import runtime as mxs
+
+import os, sys, glob
+import unittest
+
+class exportChaserFirstTest(maxUsd.ExportChaser):
+    PostExportCalled = False
+    ChaserNames = set()
+    ChaserArgs = {}
+    AllMaterialTargets = {}
+    primsToNodeHandles = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(exportChaserFirstTest, self).__init__(factoryContext, *args, **kwargs)
+        exportChaserFirstTest.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+        exportChaserFirstTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        exportChaserFirstTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['firstExport']
+        exportChaserFirstTest.AllMaterialTargets = factoryContext.GetJobArgs().GetAllMaterialConversions()
+        exportChaserFirstTest.ContextNames = factoryContext.GetJobArgs().GetContextNames()
+        exportChaserFirstTest.filename = factoryContext.GetFilename()
+
+    def PostExport(self):
+        exportChaserFirstTest.PostExportCalled = True
+        return True
+
+class exportChaserSecondTest(maxUsd.ExportChaser):
+    PostExportCalled = False
+    ChaserNames = set()
+    ChaserArgs = {}
+    AllMaterialTargets = {}
+    primsToNodeHandles = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(exportChaserSecondTest, self).__init__(factoryContext, *args, **kwargs)
+        exportChaserSecondTest.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+        exportChaserSecondTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        if 'secondExport' in factoryContext.GetJobArgs().GetAllChaserArgs():
+            exportChaserSecondTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['secondExport']
+        exportChaserSecondTest.AllMaterialTargets = factoryContext.GetJobArgs().GetAllMaterialConversions()
+        exportChaserSecondTest.ContextNames = factoryContext.GetJobArgs().GetContextNames()
+        exportChaserSecondTest.filename = factoryContext.GetFilename()
+
+    def PostExport(self):
+        exportChaserSecondTest.PostExportCalled = True
+        return True
+    
+
+class importChaserFirstTest(maxUsd.ImportChaser):
+    PostImportCalled = False
+    ChaserNames = set()
+    ChaserArgs = {}
+    context = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(importChaserFirstTest, self).__init__(factoryContext, *args, **kwargs)
+        importChaserFirstTest.context = factoryContext.GetContext()
+        importChaserFirstTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        importChaserFirstTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['firstImport']
+        importChaserFirstTest.filename = factoryContext.GetFilename()
+        importChaserFirstTest.ContextNames = factoryContext.GetJobArgs().GetContextNames()
+
+    def PostImport(self):
+        importChaserFirstTest.PostImportCalled = True
+        return True
+
+class importChaserSecondTest(maxUsd.ImportChaser):
+    PostImportCalled = False
+    ChaserNames = set()
+    ChaserArgs = {}
+    context = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(importChaserSecondTest, self).__init__(factoryContext, *args, **kwargs)
+        importChaserSecondTest.context = factoryContext.GetContext()
+        importChaserSecondTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        if 'secondImport' in factoryContext.GetJobArgs().GetAllChaserArgs():
+            importChaserSecondTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['secondImport']
+        importChaserSecondTest.filename = factoryContext.GetFilename()
+        importChaserSecondTest.ContextNames = factoryContext.GetJobArgs().GetContextNames()
+
+    def PostImport(self):
+        importChaserSecondTest.PostImportCalled = True
+        return True
+
+def firstExportContext():
+    extraArgs = {}
+    
+    # The UserData chaser needs to be enabled in this job context
+    extraArgs['chaserNames']  = ['firstExport']
+    extraArgs['chaserArgs'] = [('firstExport', 'bar', 'ometer'), ('firstExport', 'foo', 'tball')]
+    extraArgs['convertMaterialsTo'] = ['FunkyMaterial']
+    return extraArgs
+
+def secondExportContext():
+    extraArgs = {}
+    
+    # The UserData chaser needs to be enabled in this job context
+    extraArgs['chaserNames']  = ['secondExport']
+    extraArgs['chaserArgs'] = [('secondExport', 'bar', 'baric'), ('secondExport', 'foo', 'tlocker')]
+    return extraArgs
+
+def firstImportContext():
+    extraArgs = {}
+    
+    extraArgs['chaserNames']  = ['firstImport']
+    extraArgs['chaserArgs'] = [('firstImport', 'bar', 'ometer'), ('firstImport', 'foo', 'tball')]
+    return extraArgs
+
+def secondImportContext():
+    extraArgs = {}
+    
+    extraArgs['chaserNames']  = ['secondImport']
+    extraArgs['chaserArgs'] = [('secondImport', 'bar', 'baric'), ('secondImport', 'foo', 'tlocker')]
+    return extraArgs
+
+class testContext(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TEST_CONTEXT_SIMPLE_")
+        
+        mxs.resetMaxFile(mxs.Name('NOPROMPT'))
+        usd_test_helpers.load_usd_plugins()
+
+        # register chasers and contexts to use for tests
+        maxUsd.ExportChaser.Register(exportChaserFirstTest, "firstExport", "Chaser Export First Test", "This is the first export chaser test description")
+        maxUsd.ExportChaser.Register(exportChaserSecondTest, "secondExport")
+
+        maxUsd.ImportChaser.Register(importChaserFirstTest, "firstImport", "Chaser Import First Test", "This is the first import chaser test description")
+        maxUsd.ImportChaser.Register(importChaserSecondTest, "secondImport")
+        
+        # script re-run - prevent context from being registered twice
+        registeredContexts = maxUsd.JobContextRegistry.ListJobContexts()
+        if 'FirstExportContext' not in registeredContexts:
+            maxUsd.JobContextRegistry.RegisterExportJobContext("FirstExportContext", "First export context test", "First export context test setting up the 'firstExport' chaser", firstExportContext)
+        if 'SecondExportContext' not in registeredContexts:
+            maxUsd.JobContextRegistry.RegisterExportJobContext("SecondExportContext", "Second export context test", "Second export context test setting up the 'secondExport' chaser", secondExportContext)
+        if 'FirstImportContext' not in registeredContexts:
+            maxUsd.JobContextRegistry.RegisterImportJobContext("FirstImportContext", "First import context test", "First import context test setting up the 'firstImport' chaser", firstImportContext)
+        if 'SecondImportContext' not in registeredContexts:
+            maxUsd.JobContextRegistry.RegisterImportJobContext("SecondImportContext", "Second import context test", "Second import context test setting up the 'secondExport' chaser", secondImportContext)
+
+    def testSimpleContext(self):
+        test_sphere = mxs.sphere(r = 3.5, name='apple')
+        
+        # all contexts for the test are registered
+        self.assertTrue('FirstExportContext' in maxUsd.JobContextRegistry.ListJobContexts())
+        self.assertTrue('SecondExportContext' in maxUsd.JobContextRegistry.ListJobContexts())
+        self.assertTrue('FirstImportContext' in maxUsd.JobContextRegistry.ListJobContexts())
+        self.assertTrue('SecondImportContext' in maxUsd.JobContextRegistry.ListJobContexts())
+
+        # export using a dictionary as the chaser args
+        # the chaser options will merge with the user options
+        # the only option merging would the material conversion list
+        test_usd_file_path = self.output_prefix + "simple_chaser.usda"
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        export_options.ContextNames = mxs.Array("FirstExportContext")
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertFalse(exportChaserSecondTest.PostExportCalled)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('firstExport' in exportChaserFirstTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(exportChaserFirstTest.ContextNames,{'FirstExportContext'})
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserFirstTest.AllMaterialTargets, {'UsdPreviewSurface','FunkyMaterial'})
+        self.assertEqual(exportChaserSecondTest.filename, "")
+        self.assertEqual(exportChaserSecondTest.AllMaterialTargets, {})
+
+        # import the exported file
+        import_options = mxs.USDImporter.CreateOptions()
+        import_options.ContextNames = mxs.Array("FirstImportContext")
+        ret = mxs.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertFalse(importChaserSecondTest.PostImportCalled)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('firstImport' in importChaserFirstTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(importChaserSecondTest.filename, "")
+
+        # more complex user options are merged with the export context
+        # setting a chaser + conflicting arguments on chaser being used by context set from the user options
+        # the user conflicting chaser arguments should be lost and the context ones kept
+        exportChaserFirstTest.PostExportCalled = False
+        exportChaserFirstTest.ChaserNames = {}
+        exportChaserFirstTest.ChaserArgs = {}
+        exportChaserFirstTest.ContextNames = {}
+        exportChaserFirstTest.filename = ""
+
+        test_usd_file_path = self.output_prefix + "simple_chaser_override.usda"
+        export_options.AllMaterialTargets = mxs.Array() # remove default 'UsdPreviewSurface' material target
+        export_options.ChaserNames = mxs.Array('secondExport')
+        export_options.AllChaserArgs = mxs.Array("firstExport", "bar", "baric", "firstExport", "foo", "tlocker")
+        export_options.LogLevel = mxs.Name('info')
+        logFileExportDefault = export_options.LogPath # keep filename before changing it
+        logFileTest = self.output_prefix + "conflicting_export.log"
+        export_options.LogPath = logFileTest
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertTrue(exportChaserSecondTest.PostExportCalled)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 2)
+        self.assertTrue('firstExport' in exportChaserFirstTest.ChaserNames)
+        self.assertTrue('secondExport' in exportChaserFirstTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.AllMaterialTargets, {'FunkyMaterial'})
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(exportChaserSecondTest.ChaserArgs,{})
+        self.assertEqual(exportChaserFirstTest.ContextNames,{'FirstExportContext'})
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserSecondTest.filename, test_usd_file_path)
+        with open(logFileTest, 'r') as file:
+            content = file.read()
+            self.assertTrue("Multiple argument value for 'foo' associated to chaser 'firstExport'. Keeping the argument value set to 'tball' from Context." in content)
+        # log file cleanup before going to the next test
+        os.remove(logFileTest)
+
+        # more complex user options are merged with the import context
+        # setting a chaser + conflicting arguments on chaser being used by context set from the user options
+        # the user conflicting chaser arguments should be lost and the context ones kept
+        importChaserFirstTest.PostImportCalled = False
+        importChaserFirstTest.ChaserNames = {}
+        importChaserFirstTest.ChaserArgs = {}
+        importChaserFirstTest.ContextNames = {}
+        importChaserFirstTest.filename = ""
+
+        import_options.ChaserNames = mxs.Array('secondImport')
+        import_options.AllChaserArgs = mxs.Array("firstImport", "bar", "baric", "firstImport", "foo", "tlocker")
+        import_options.LogLevel = mxs.Name('info')
+        import_options.ContextNames = mxs.Array("FirstImportContext")
+        logFileImportDefault = import_options.LogPath # keep filename before changing it
+        logFileTest = self.output_prefix + "conflicting_import.log"
+        import_options.LogPath = logFileTest
+        ret = mxs.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertTrue(importChaserSecondTest.PostImportCalled)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 2)
+        self.assertTrue('firstImport' in importChaserFirstTest.ChaserNames)
+        self.assertTrue('secondImport' in importChaserFirstTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(importChaserSecondTest.ChaserArgs,{})
+        self.assertEqual(importChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(importChaserSecondTest.filename, test_usd_file_path)
+        self.assertEqual(importChaserFirstTest.ContextNames,{'FirstImportContext'})
+        with open(logFileTest, 'r') as file:
+            content = file.read()
+            self.assertTrue("Multiple argument value for 'foo' associated to chaser 'firstImport'. Keeping the argument value set to 'tball' from Context." in content)
+        # log file cleanup before going to the next test
+        os.remove(logFileTest)
+
+        # now merge two contexts which export using 2 chasers with their own arguments
+        # keeping a chaser in the user option (with no arguments)
+        # however the second context makes use of the same user specified chaser but with arguments
+        # the chaser setup from the context should be the one remaining
+        exportChaserFirstTest.PostExportCalled = False
+        exportChaserSecondTest.PostExportCalled = False
+        exportChaserFirstTest.filename = ""
+        exportChaserFirstTest.ChaserNames = {}
+        exportChaserFirstTest.ChaserArgs = {}
+        exportChaserFirstTest.ContextNames = {}
+        test_usd_file_path = self.output_prefix + "simple_chaser_merge.usda"
+        export_options.ContextNames = mxs.Array("FirstExportContext", "SecondExportContext")
+        export_options.AllMaterialTargets = mxs.Array('UsdPreviewSurface') # putting back default 'UsdPreviewSurface' material target
+        export_options.LogLevel = mxs.Name('off')
+        export_options.LogPath = logFileExportDefault
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertTrue(exportChaserSecondTest.PostExportCalled)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(list(exportChaserSecondTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(exportChaserFirstTest.AllMaterialTargets, {'UsdPreviewSurface', 'FunkyMaterial'})
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 2)
+        self.assertEqual(len(exportChaserSecondTest.ChaserNames), 2)
+        self.assertTrue('firstExport' in exportChaserFirstTest.ChaserNames)
+        self.assertTrue('secondExport' in exportChaserSecondTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(exportChaserSecondTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertTrue('FirstExportContext' in exportChaserFirstTest.ContextNames)
+        self.assertTrue('SecondExportContext' in exportChaserSecondTest.ContextNames)
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserSecondTest.filename, test_usd_file_path)
+
+        # now merge two contexts which import using 2 chasers with their own arguments
+        # keeping a chaser in the user option (with no arguments)
+        # however the second context makes use of the same user specified chaser but with arguments
+        # the chaser setup from the context should be the one remaining
+        importChaserFirstTest.PostImportCalled = False
+        importChaserSecondTest.PostImportCalled = False
+        importChaserFirstTest.filename = ""
+        importChaserFirstTest.ChaserNames = {}
+        importChaserFirstTest.ChaserArgs = {}
+        importChaserFirstTest.ContextNames = {}
+
+        import_options.ContextNames = mxs.Array("FirstImportContext", "SecondImportContext")
+        import_options.LogLevel = mxs.Name('off')
+        import_options.LogPath = logFileImportDefault
+        ret = mxs.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertTrue(importChaserSecondTest.PostImportCalled)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 2)
+        self.assertEqual(len(importChaserSecondTest.ChaserNames), 2)
+        self.assertTrue('firstImport' in importChaserFirstTest.ChaserNames)
+        self.assertTrue('secondImport' in importChaserSecondTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(importChaserSecondTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertTrue('FirstImportContext' in importChaserFirstTest.ContextNames)
+        self.assertTrue('SecondImportContext' in importChaserSecondTest.ContextNames)
+        self.assertEqual(importChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(importChaserSecondTest.filename, test_usd_file_path)
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(
+        unittest.TestLoader().loadTestsFromTestCase(testContext)
+    )
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
diff --git a/src/Tests/Integration/convert_usd_basis_curve_test.ms b/src/Tests/Integration/convert_usd_basis_curve_test.ms
new file mode 100644
index 0000000..b52547f
--- /dev/null
+++ b/src/Tests/Integration/convert_usd_basis_curve_test.ms
@@ -0,0 +1,75 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/CONVERT_USD_BASIS_CURVE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct convert_usd_basis_curve_test
+(  
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt    
+    ),
+    
+    function test = (
+
+        -- Open the exported layer, and place it into the cache.
+        local stage = pyUsd.Stage.CreateInMemory()
+        stageCache = pyUsdUtils.StageCache.Get()
+        stageCache.Insert(stage)
+        stageId = (stageCache.GetId(stage)).ToLongInt()
+
+        local curve_path = "/Curve"
+        local some_curve = pyUsdGeom.BasisCurves.Define stage curve_path
+
+        curvesPoints =  #([0,0,0], [1,1,1], [2,1,1], [3,2,2], [4,2,2], [15,3,3])
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "periodic"
+        curveVertexCount = #(6)
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        -- Convert the UsdMesh of the box to a Max mesh.
+        local splineShapeObj = USDImporter.ConvertUsdBasisCurve stageId curve_path
+            
+        assert_equal SplineShape (classof splineShapeObj) message:("Converted Usd BasisCurve is expected to be a 'SplineShape' type.")
+        
+        local bezierShapeObj = USDImporter.ConvertUsdBasisCurve stageId curve_path asBezierShape:true
+        assert_equal BezierShapeValue (classof bezierShapeObj) message:("Converted Usd BasisCurve is expected to be a 'BezierShapeValue' type.")
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(test)
+)
+
+runUsdTestFixture convert_usd_basis_curve_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/convert_usd_mesh_test.ms b/src/Tests/Integration/convert_usd_mesh_test.ms
new file mode 100644
index 0000000..df32cbd
--- /dev/null
+++ b/src/Tests/Integration/convert_usd_mesh_test.ms
@@ -0,0 +1,190 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/CONVERT_USD_MESH_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct convert_usd_mesh_test
+(  
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt    
+    ),
+    
+    function test = (
+
+        -- Create a box, and export it to USD.
+        local boxNode = box()
+        boxNode.name = "box"
+      
+        convertToPoly boxNode
+        polyop.defaultMapFaces boxNode 1
+        
+        local exportPath = output_prefix + "convert_usd_mesh.usd"
+        
+        local opts = USDExporter.CreateOptions()
+        opts.FileFormat = #ascii
+        opts.RootPrimPath = "/"
+        USDExporter.ExportFile exportPath exportOptions:opts
+
+        -- Open the exported layer, and place it into the cache.
+        local stage = pyUsd.Stage.Open(exportPath)
+        stageCache = pyUsdUtils.StageCache.Get()
+        stageCache.Insert(stage)
+        stageId = (stageCache.GetId(stage)).ToLongInt()
+
+        -- Convert the UsdMesh of the box to a Max mesh.
+        local meshData = USDImporter.ConvertUsdMesh stageId "/box" 
+        local boxMesh = meshData.mesh
+            
+        assert_equal 8 boxMesh.numVerts message:"Unexpected vertex count, expected 8 for a box."
+        assert_equal 12 boxMesh.numFaces message:"Unexpected face count, expected 12 for a box."
+
+        local bindMaterial = meshData.usdGeomSubsetsBindMaterial
+        
+        -- A box has 6 material Ids, so on export we generated 6 usdGeomSubsets. When we convert it to 
+        -- 3dsMax data, we should therefor get a multi-material with 6 slots.
+        assert_equal 6 (GetNumSubMtls bindMaterial) message:"Unexpected number of sub materials, expected 6 for a box."
+        assert_equal "(1) _1_" (getSubMtlSlotName bindMaterial 1) message:"Unexpected usdGeomSubsetMaterial slot name for slot 1."
+        assert_equal "(2) _2_" (getSubMtlSlotName bindMaterial 2) message:"Unexpected usdGeomSubsetMaterial slot name for slot 2."
+        assert_equal "(3) _3_" (getSubMtlSlotName bindMaterial 3) message:"Unexpected usdGeomSubsetMaterial slot name for slot 3."
+        assert_equal "(4) _4_" (getSubMtlSlotName bindMaterial 4) message:"Unexpected usdGeomSubsetMaterial slot name for slot 4."
+        assert_equal "(5) _5_" (getSubMtlSlotName bindMaterial 5) message:"Unexpected usdGeomSubsetMaterial slot name for slot 5."
+        assert_equal "(6) _6_" (getSubMtlSlotName bindMaterial 6) message:"Unexpected usdGeomSubsetMaterial slot name for slot 6."
+            
+        -- Test with specified import options.
+        local conversionOptions = USDImporter.CreateOptions()
+        conversionOptions.SetPrimvarChannelMapping "st" 5
+        local meshData = USDImporter.ConvertUsdMesh stageId "/box" options:conversionOptions
+        local boxMesh = meshData.mesh
+        assert_true (meshop.getMapSupport boxMesh 5)
+
+        -- Test import mesh with TimeCode values
+        local animeFilePath = getFilenamePath (getThisScriptFilename()) + @"data\cube_scale_up_animation.usda"
+        local animeStage = pyUsd.Stage.Open(animeFilePath)
+        local animeStageCache = pyUsdUtils.StageCache.Get()
+        animeStageCache.Insert(animeStage)
+        local animeStageId = (animeStageCache.GetId(animeStage)).ToLongInt()
+        
+        local importTimeOptions = USDImporter.CreateOptions()
+        importTimeOptions.SetPrimvarChannelMapping "st" 5
+        
+        -- Mesh at startTime
+        importTimeOptions.TimeMode = #startTime
+        local meshSTData = USDImporter.ConvertUsdMesh animeStageId "/Box001" options:importTimeOptions
+        local meshST = meshSTData.mesh
+        
+        -- Mesh at endTime
+        importTimeOptions.TimeMode = #endTime
+        local meshETData = USDImporter.ConvertUsdMesh animeStageId "/Box001" options:importTimeOptions
+        local meshET = meshETData.mesh
+
+        -- Mesh at frame 50
+        importTimeOptions.TimeMode = #CustomRange
+        importTimeOptions.StartTimeCode = 50
+        local mesh50Data = USDImporter.ConvertUsdMesh animeStageId "/Box001" options:importTimeOptions
+        local mesh50 = mesh50Data.mesh
+        
+        -- Mesh at frame 0
+        importTimeOptions.TimeMode = #CustomRange
+        importTimeOptions.StartTimeCode = 0
+        local mesh0Data = USDImporter.ConvertUsdMesh animeStageId "/Box001" options:importTimeOptions
+        local mesh0 = mesh0Data.mesh
+        
+        local vert50 = #(
+            [-14.3052, -18.825, 0],
+            [14.3052, -18.825, 0],
+            [-14.3052, 18.825, 0],
+            [14.3052, 18.825, 0],
+            [-14.3052, -18.825, 40.7187],
+            [14.3052, -18.825, 40.7187],
+            [-14.3052, 18.825, 40.7187],
+            [14.3052, 18.825, 40.7187]
+        )
+        local vert0 = #(
+            [-14.3052, -18.825, 0],
+            [14.3052, -18.825, 0],
+            [-14.3052, 18.825, 0],
+            [14.3052, 18.825, 0],
+            [-14.3052, -18.825, 16.1803],
+            [14.3052, -18.825, 16.1803],
+            [-14.3052, 18.825, 16.1803],
+            [14.3052, 18.825, 16.1803]
+        )
+
+        for i = 1 to mesh50.numVerts do
+        (
+            assert_point3_equal vert0[i] (getVert meshST i) Message: "Wrong vertice at imported at start time"
+            assert_point3_equal vert50[i] (getVert meshET i) Message: "Wrong vertice at imported at end time"
+            assert_point3_equal vert50[i] (getVert mesh50 i) Message: "Wrong vertice at imported at time 50"
+            assert_point3_equal vert0[i] (getVert mesh0 i) Message: "Wrong vertice at imported at time 0"
+        )
+
+        -- Testing bad calls to the convert function...
+        
+        -- Bad option object : 
+        local exceptionThrown = false
+        try (
+            local foo = 10
+            local meshData = USDImporter.ConvertUsdMesh stageId "/box" options:foo
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to use an invalid options object should throw."
+        
+        -- Bad stage ID :
+        local exceptionThrown = false
+        try (
+            local meshData = USDImporter.ConvertUsdMesh 1234 "/box" 
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to use an invalid stage ID should throw."
+        
+        -- Bad mesh prim path :
+        local exceptionThrown = false
+        try (
+            local meshData = USDImporter.ConvertUsdMesh stageId "/not_a_mesh"
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to convert a path that does not point to a UsdGeomMesh should throw."
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(test)
+)
+
+runUsdTestFixture convert_usd_mesh_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/create_usd_reference_test.ms b/src/Tests/Integration/create_usd_reference_test.ms
new file mode 100644
index 0000000..6f66fa8
--- /dev/null
+++ b/src/Tests/Integration/create_usd_reference_test.ms
@@ -0,0 +1,495 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pyUsdShade = python.import("pxr.UsdShade")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/CREATE_REFERENCE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct create_reference_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale        
+        resetMaxFile #noprompt
+    ),
+    
+    function test_set_root_layer = (
+        -- Create a usd file to reference in.
+        box()
+        local exportPath = output_prefix + "box.usd"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetMaxFile #noprompt
+        
+        local usdReference = USDStageObject()
+        assert_defined usdReference
+
+        -- test SetRootLayer default stageMask
+        usdReference.SetRootLayer exportPath
+        assert_equal exportPath usdReference.FilePath message:"FilePath should be set on the stage object."
+        assert_equal "/" usdReference.StageMask message:"StageMask should be set on the stage object to the root '/'."
+        
+        -- test SetRootLayer with specified stageMask
+        local testStageMask = "/something"
+        usdReference.SetRootLayer exportPath stageMask:testStageMask
+        assert_equal exportPath usdReference.FilePath message:"FilePath should be set on the stage object."
+        assert_equal testStageMask usdReference.StageMask message:"StageMask should be set on the stage object."
+        assert_equal (Box3 [-6.09115,-8.86275,0] [6.09115,8.86275,0]) usdReference.boundingbox message:"Bounding box of usdReference should be the bounding box of the stage"
+    ),
+    
+    function test_cache_id = (
+        if (USDStageObject == undefined) do (
+            print("Skipping create_reference_test.test() as MaxUsdObjects.dlo plugin not available.")
+            return -1
+        )
+
+        -- Create a usd file to reference in.
+        box()
+        local exportPath = output_prefix + "box.usd"
+        local exportOptions = USDExporter.CreateOptions()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetMaxFile #noprompt
+        
+        -- Test that a cache id is assigned correctly with a initialized stage.        
+        local usdReference = USDStageObject()
+        assert_equal -1 usdReference.CacheId message:"An unitialized stage object should hold the default/invalid cache id."
+        try (
+            usdReference.SetRootLayer ""
+        )
+        catch 
+        (
+            -- catch exception and continue with testing the the cacheId 
+        )
+        assert_equal -1 usdReference.CacheId message:"An unitialized stage object should hold the default/invalid cache id."
+        usdReference.SetRootLayer exportPath
+        assert_not_equal -1 usdReference.CacheId message:"CacheId should be set on the stage object."
+        
+        -- Test cache ids with multiple stages.
+        local usdReference2 = USDStageObject()
+        usdReference2.SetRootLayer exportPath
+        assert_not_equal -1 usdReference2.CacheId message:"CacheId should be set on the stage object."
+        local usdReference3 = USDStageObject()
+        usdReference3.SetRootLayer exportPath
+        assert_not_equal -1 usdReference3.CacheId message:"CacheId should be set on the stage object."
+        assert_not_equal usdReference2.CacheId usdReference3.CacheId message:"The assigned stage cache ids should be unique."
+        
+        -- Test SetRootLayer stageMask valid layer + valid mask
+        usdReference3.SetRootLayer exportPath stageMask:"/"
+        assert_not_equal -1 usdReference3.CacheId message:"CacheId should be set on the stage object."
+
+        -- Test SetRootLayer stageMask valid layer + invalid mask
+        usdReference3.SetRootLayer exportPath stageMask:"/bad"
+        assert_not_equal -1 usdReference3.CacheId message:"CacheId should be set on the stage object."
+        
+        -- Test SetRootLayer stageMask invalid layer + valid mask
+        local badExportPath = output_prefix + "bad.usd"
+        usdReference3.SetRootLayer badExportPath stageMask:"/"
+        assert_equal -1 usdReference3.CacheId message:"An unitialized stage object should hold the default/invalid cache id."
+
+        -- Test SetRootLayer stageMask invalid layer + invalid mask
+        usdReference3.SetRootLayer badExportPath stageMask:"/bad"
+        assert_equal -1 usdReference3.CacheId message:"An unitialized stage object should hold the default/invalid cache id."
+
+        -- test SetRootLayer same data, same cacheId
+        usdReference3.SetRootLayer exportPath stageMask:"/"
+        local cacheIdFirst = usdReference3.CacheId
+        usdReference3.SetRootLayer exportPath stageMask:"/"
+        local cacheIdSecond = usdReference3.CacheId
+        assert_equal cacheIdFirst cacheIdSecond message:"CacheId value should be the same if setting same data for SetRootLayer calls."
+    ),
+
+    function test_icon_display = (
+        if (USDStageObject == undefined) do (
+            print("Skipping create_reference_test.test() as MaxUsdObjects.dlo plugin not available.")
+            return -1
+        )
+
+        -- Create a usd file to reference in.
+        box pos:[10,10,10]
+        local exportPath = output_prefix + "boxIcon.usd"
+        local exportOptions = USDExporter.CreateOptions()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetMaxFile #noprompt
+
+        -- Test that an empty stage has an icon by default.        
+        local usdReference = USDStageObject()
+        assert_true usdReference.showIcon message:"Icon should be on by default"
+        assert_equal (Box3 [-6.09115,-8.86275,0] [6.09115,8.86275,0]) usdReference.boundingbox message:"Bounding box of empty stage should be the bounding box of the icon"
+        usdReference.iconScale = 2
+        assert_equal (Box3 [-12.1823,-17.7255,0] [12.1823,17.7255,0]) usdReference.boundingbox message:"Bounding box of empty stage should be the bounding box of the icon"
+        usdReference.showIcon = false
+        assert_equal (Box3 [1e+30,1e+30,1e+30] [-1e+30,-1e+30,-1e+30]) usdReference.boundingbox message:"Bounding box of empty stage with a disabled icon should be an invalid bounding box"
+
+        usdReference.SetRootLayer exportPath
+        assert_equal (Box3 [-2.5,-2.5,10] [22.5,22.5,35]) usdReference.boundingbox message:"Bounding box of should be the bounding box of the stage"
+        usdReference.showIcon = true
+        assert_equal (Box3 [-12.1823,-17.7255,0] [22.5,22.5,35]) usdReference.boundingbox message:"Bounding box of should be the bounding box of the stage and the icon"
+    ),
+    
+    -- Test various behaviors dealing with the UsdPreviewSurface materials which can be generated for the purpose 
+    -- of offline rendering.
+    function test_usdpreviewsurface_assignment = (
+        -- Create a stage, using a root layer which hold some materials.
+        local stageObject = USDStageObject name:"stageFright"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\stage_get_usd_materials.usda")
+        stageObject.SetRootLayer sampleFile
+           
+        -- Make sure the multi-sub carrying UsdPreviewSurfaceMaterials is generated/returned via GetUsdPreviewSurfaceMaterials().
+        local multiSub = stageObject.GetUsdPreviewSurfaceMaterials()
+        assert_defined multiSub
+        assert_undefined stageObject.material -- We only return the material, should still be unassigned on the node.
+        assert_equal (#("/stage_get_usd_materials/Materials/Material__25", "displayColor", "/stage_get_usd_materials/Materials/Material__26", "/stage_get_usd_materials/Materials/Material__38") as string) (multiSub.names as string)
+    
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stageObject.cacheId))
+        
+        -- Validate the diffuseColor of the material, just to make sure the multi-sub is populated correctly.
+        local shaderPrim = stage.GetPrimAtPath("/stage_get_usd_materials/Materials/Material__25/Material__25")
+        local usdPreviewSurface = pyUsdShade.Shader(shaderPrim)
+        local diffuseColorInput = usdPreviewSurface.GetInput("diffuseColor")
+        local usdDiffuseColor = diffuseColorInput.Get()
+                    
+        local maxDiffuseColor = multiSub.materialList[1].diffusecolor
+        local r = (maxDiffuseColor.r/255)
+        local g = (maxDiffuseColor.g/255)    
+        local b = (maxDiffuseColor.b/255)
+        assert_point3_equal (Point3 usdDiffuseColor[1] usdDiffuseColor[2] usdDiffuseColor[3]) (Point3  r g b)
+        
+        -- Now modify the source data in USD, and verify that the 3dsMax material is updated accordingly.
+        local usdDiffuseColor = pyGf.Vec3f 0 0 1
+        diffuseColorInput.Set(usdDiffuseColor)
+        
+        -- Force refresh of the fallback material.
+        stageObject.GetUsdPreviewSurfaceMaterials()
+        
+        local maxDiffuseColor = multiSub.materialList[1].diffusecolor
+        local r = (maxDiffuseColor.r/255)
+        local g = (maxDiffuseColor.g/255)    
+        local b = (maxDiffuseColor.b/255)
+        assert_point3_equal (Point3 usdDiffuseColor[1] usdDiffuseColor[2] usdDiffuseColor[3]) (Point3  r g b)
+        
+        -- Override the first material.
+        local overrideMtl = MaxUsdPreviewSurface()
+        overrideMtl.diffuseColor = green
+        local originalUsdMtl = multiSub.materialList[1]        
+        multiSub.materialList[1] = overrideMtl
+        
+        -- Make sure calling GetUsdPreviewSurfaceMaterials with sync = false  doesnt wipe the overriden material.
+        local multiSub2 = stageObject.GetUsdPreviewSurfaceMaterials sync:false
+        assert_equal multiSub2.materialList[1] overrideMtl
+        assert_equal multiSub multiSub2 -- still the same multimaterial
+        
+        -- With sync = true, the multimaterial is fully updated from the usd source, wiping any overrides.
+        local multiSub3 = stageObject.GetUsdPreviewSurfaceMaterials sync:true
+        assert_equal multiSub3.materialList[1] originalUsdMtl
+        assert_equal multiSub multiSub3 -- still the same material
+        
+        -- Next, test that the UsdPreviewSurface materials are reconnected to their usd source when loaded from disk.
+        -- Apply the multi-sub to the node and save the scene...
+        stageObject.material = multiSub
+        local maxSceneSavePath = output_prefix + "usdPreviewSurfaceAssigned.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        -- Load the scene from disk...
+        loadMaxFile maxSceneSavePath
+        local loadedStageObject = $stageFright
+                
+        -- Modify some property of the source material and make validate that our material changed as well, 
+        -- proving that the connection to the source data was made.
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(loadedStageObject.cacheId))
+        local shaderPrim = stage.GetPrimAtPath("/stage_get_usd_materials/Materials/Material__25/Material__25")
+        local usdPreviewSurface = pyUsdShade.Shader(shaderPrim)
+        local diffuseColorInput = usdPreviewSurface.GetInput("diffuseColor")
+        local usdDiffuseColor = pyGf.Vec3f 1 0 1
+            
+        diffuseColorInput.Set(usdDiffuseColor)
+        
+        -- Force refresh of the fallback material.
+        loadedStageObject.GetUsdPreviewSurfaceMaterials()
+            
+        local r = loadedStageObject.material.materialList[1].diffuseColor.r/255
+        local g = loadedStageObject.material.materialList[1].diffuseColor.g/255
+        local b = loadedStageObject.material.materialList[1].diffuseColor.b/255
+        assert_point3_equal (Point3 usdDiffuseColor[1] usdDiffuseColor[2] usdDiffuseColor[3]) (Point3  r g b)
+        loadedStageObject.material.materialList[1].diffuseColor        
+    ),
+    
+    -- Tests the fix for https://jira.autodesk.com/browse/EMSUSD-585
+    -- The issue was that on load, when we attempt to "reconnect" the UsdPreviewSurface
+    -- materials to the source data, we did not expect that a user may have emptied
+    -- out of slot of the submtl, and were then crashing on a nullptr.
+    function test_empty_submtl_crash_fix = (
+        -- Create a stage, using a root layer which hold some materials.
+        local stageObject = USDStageObject name:"stageFright"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\stage_get_usd_materials.usda")
+        stageObject.SetRootLayer sampleFile
+           
+        local multiSub = stageObject.GetUsdPreviewSurfaceMaterials()
+        stageObject.material = multiSub
+        
+        -- Set the first submtl empty
+        multiSub.materialList[1] = undefined
+        
+        local maxSceneSavePath = output_prefix + "test_empty_submtl_crash_fix.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        -- Load the scene from disk...
+        loadMaxFile maxSceneSavePath
+        local loadedStageObject = $stageFright
+        
+        assert_undefined loadedStageObject.material.materialList[1]
+        assert_defined loadedStageObject.material.materialList[2]
+    ),
+    
+    function test_computed_bounding_box = (
+        -- Make sure any current unit setup will not impact the test.
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+        
+        local stageObject = USDStageObject name:"movingCube"
+        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\animated_cube_bbox.usda")
+        stageObject.SetRootLayer sampleFile
+            
+        -- Disable the icon for now, it influences the bounding box.
+        stageObject.ShowIcon = false
+        
+        -- The scene is a 10x10 box, centered in x and y.
+        
+        -- Test at time 0, using the original anim range: 
+        at time 0 assert_equal [-5,-5,0] stageObject.min
+        at time 0 assert_equal [5,5,10] stageObject.max
+        
+        -- Test at time 50, using the original anim range (the box moved up 10 units).
+        at time 50 assert_equal [-5,-5,10] stageObject.min
+        at time 50 assert_equal [5,5,20] stageObject.max
+        
+        -- Setup the timeline so that the new start is at frame 50.
+        stageObject.AnimationMode = 1 -- CustomStartAndSpeed
+        stageObject.CustomAnimationStartFrame = 50
+        
+        -- This tests both that we are getting the bbox at the right time, but also that any
+        -- cached value for that frame was properly cleared.
+        at time 50 assert_equal [-5,-5,0] stageObject.min
+        at time 50 assert_equal [5,5,10] stageObject.max
+        
+        -- Re-enable the icon, make sure it is included in the bounding box appropriately.
+        -- Notice only X and Y dimensions are impacted, as the icon is "flat".
+        stageObject.ShowIcon = true
+        at time 50 assert_equal [-6.09115,-8.86275,0] stageObject.min
+        at time 50 assert_equal [6.09115,8.86275,10] stageObject.max
+
+        -- Scale the icon and make sure the bounding box is still correct.
+        stageObject.IconScale = 2.0
+        at time 50 assert_equal [-12.1823,-17.7255,0] stageObject.min
+        at time 50 assert_equal [12.1823,17.7255,10] stageObject.max
+    ),    
+
+    function test_primvar_mapping_api = (
+        -- Create a stage, using a root layer which hold some materials.
+        local stageObject = USDStageObject name:"stageFright"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\unmappedpv.usda")
+        stageObject.SetRootLayer sampleFile
+        
+        -- Code used under the hood is the same as for import options, no need to 
+        -- test the defaults precisely. High level is enough.
+        local allMapped = stageObject.GetMappedPrimvars()
+        assert_equal 500 allMapped.count
+        assert_equal "displayOpacity" allMapped[1]
+        
+        -- Test modifying mapping from existing
+        assert_equal 1 (stageObject.GetPrimvarChannel "st")
+        stageObject.SetPrimvarChannelMapping "st" 50
+        assert_equal 50 (stageObject.GetPrimvarChannel "st")
+        stageObject.SetPrimvarChannelMapping "st" undefined
+        assert_equal undefined (stageObject.GetPrimvarChannel "st")
+        
+        -- Add a completely new mapping
+        assert_equal undefined (stageObject.GetPrimvarChannel "aye")
+        stageObject.SetPrimvarChannelMapping "aye" 25
+        assert_equal 25 (stageObject.GetPrimvarChannel "aye")
+        
+        -- Test 'IsMappedPrimvar()'
+        assert_true (stageObject.IsMappedPrimvar "aye")
+        assert_false (stageObject.IsMappedPrimvar "ney")
+        
+        -- So now we have one more total!
+        allMapped = stageObject.GetMappedPrimvars()
+        assert_equal 501 allMapped.count
+        
+        -- Test clear all mappings.
+        stageObject.ClearMappedPrimvars()
+        allMapped = stageObject.GetMappedPrimvars()
+        assert_equal 0 allMapped.count
+        
+        -- Reset defaults...
+        stageObject.SetPrimvarChannelMappingDefaults()
+        local allMapped = stageObject.GetMappedPrimvars()
+        assert_equal 500 allMapped.count
+        assert_equal "displayOpacity" allMapped[1]
+    ),
+    
+    function test_primvar_mapping_texture_channel = (
+        -- Create a stage, using a root layer which holds some materials.
+        local stageObject = USDStageObject name:"stageFright"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\unmappedpv.usda")
+        stageObject.SetRootLayer sampleFile
+            
+        local mat = stageObject.GetUsdPreviewSurfaceMaterials sync:true
+        
+        -- The geometry in the stage uses two primvars, "foo" and "bar".
+        -- By default, there are no mappings for these, so the generated textures will 
+        -- default to using channel 1.
+            
+        -- The first material has an identity texture transform, will load as BitmapTexture.
+        assert_equal 1 (mat.materiallist[1].diffusecolor_map.coords.mapChannel)
+        -- The first material has a non-identity texture transform, will load an OSL Uberbitmap.
+        assert_equal 1 (mat.materiallist[2].diffusecolor_map.sourceMap.UVSet)
+        
+        -- Now properly map those primvars to some max channels.    
+        stageObject.SetPrimvarChannelMapping "foo" 5
+        stageObject.SetPrimvarChannelMapping "bar" 10
+        
+        -- Materials are updated on redraw.
+        ForceCompleteRedraw()
+            
+        local mat = stageObject.GetUsdPreviewSurfaceMaterials sync:true
+        assert_equal 5 (mat.materiallist[1].diffusecolor_map.coords.mapChannel)
+        assert_equal 10 (mat.materiallist[2].diffusecolor_map.sourceMap.UVSet)
+        
+        -- Change the mapping.
+        stageObject.SetPrimvarChannelMapping "foo" 66
+        stageObject.SetPrimvarChannelMapping "bar" 77
+        
+        -- Force the material to update...
+        ForceCompleteRedraw()
+        
+        -- Validate!
+        local mat = stageObject.GetUsdPreviewSurfaceMaterials sync:true
+        assert_equal 66 (mat.materiallist[1].diffusecolor_map.coords.mapChannel)
+        assert_equal 77 (mat.materiallist[2].diffusecolor_map.sourceMap.UVSet)
+    ),
+    
+    function test_save_load_of_primvar_mapping = (
+        -- Create a stage, using a root layer which holds some materials.
+        local stageObject = USDStageObject name:"stageFright"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\unmappedpv.usda")
+        stageObject.SetRootLayer sampleFile
+            
+        -- Setup some primvar mapping that we will save to the .max     
+        stageObject.ClearMappedPrimvars()
+        stageObject.SetPrimvarChannelMapping "foo" 5
+        stageObject.SetPrimvarChannelMapping "bar" 10
+        stageObject.SetPrimvarChannelMapping "baz" undefined -- explicit mapping to nothing
+    
+        local maxSceneSavePath = output_prefix + "test_save_load_of_primvar_mapping.max"
+        saveMaxFile maxSceneSavePath quiet:true
+                    
+        -- Load the scene from disk...
+        loadMaxFile maxSceneSavePath
+        local loadedStageObject = $stageFright
+        
+        -- Make sure the primvar mapping is as we saved it.
+        local allMapped = loadedStageObject.GetMappedPrimvars()
+        assert_array_equal #("bar", "baz", "foo") allMapped
+        
+        assert_equal 5 (loadedStageObject.GetPrimvarChannel "foo")
+        assert_equal 10 (loadedStageObject.GetPrimvarChannel "bar")
+        assert_equal undefined (loadedStageObject.GetPrimvarChannel "baz")
+    ),
+    
+    -- Simple test that load a USD file containing a materialX reference.
+    -- This caused the stage loading to hang Max prior to fix : MAXX-73770
+    -- So nothing to compare here really, just testing the test can finish
+    function test_materialX_reference = (
+
+        local usdReference = USDStageObject()
+        assert_defined usdReference
+        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleMtlXFile = (testDataDir + @"data\simpleMtlxRef.usda")
+        
+        usdReference.SetRootLayer sampleMtlXFile
+    ),
+    
+    function test_copied_stage_loaded = (
+        -- Make sure any current unit setup will not impact the test.
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+        
+        local stageObject = USDStageObject name:"movingCube"
+        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\animated_cube_bbox.usda")
+        stageObject.SetRootLayer sampleFile
+            
+        -- Disable the icon for now, it influences the bounding box.
+        stageObject.ShowIcon = false
+        
+        -- The scene is a 10x10 box, centered in x and y.
+        
+        assert_equal [-5,-5,0] stageObject.min
+        assert_equal [5,5,10] stageObject.max
+        
+        -- copy the stage
+        stageCopy = copy stageObject
+        stageCopy.position = [10,10,10]
+        
+        assert_equal [5,5,10] stageCopy.min
+        assert_equal [15,15,20] stageCopy.max        
+    ),        
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(test_set_root_layer,
+        test_cache_id,
+        test_icon_display,
+        test_usdpreviewsurface_assignment,
+        test_computed_bounding_box,
+        test_primvar_mapping_api,
+        test_primvar_mapping_texture_channel,
+        test_save_load_of_primvar_mapping,
+        test_materialX_reference,
+        test_copied_stage_loaded,
+        test_empty_submtl_crash_fix
+        )
+)
+
+runUsdTestFixture create_reference_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/data/Celtis_australis_s copia.png b/src/Tests/Integration/data/Celtis_australis_s copia.png
new file mode 100644
index 0000000..ed2595b
--- /dev/null
+++ b/src/Tests/Integration/data/Celtis_australis_s copia.png	
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ac8d28c32746ff52a5c512015ae9a51c28d9d35e7dc51b2613c652f775e152a5
+size 82187
diff --git a/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/Iberian_Blue_Ceramic_Tiles.mtlx b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/Iberian_Blue_Ceramic_Tiles.mtlx
new file mode 100644
index 0000000..ae69d91
--- /dev/null
+++ b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/Iberian_Blue_Ceramic_Tiles.mtlx
@@ -0,0 +1,133 @@
+<?xml version='1.0' encoding='utf-8'?>
+<materialx version="1.38">
+  <nodegraph name="NG_Iberian_Blue_Ceramic_Tiles">
+    <tiledimage name="node_tiledimage_color3_0" type="color3" GLSLFX_usage="baseColor" expose="true">
+      <input name="texcoord" type="vector2" nodename="node_multiply_1" />
+      <input name="uvtiling" type="vector2" value=" 1.000000, 1.000000" />
+      <input name="uvoffset" type="vector2" value=" 0.000000, 0.000000" />
+      <input name="realworldimagesize" type="vector2" value=" 1.000000, 1.000000" />
+      <input name="realworldtilesize" type="vector2" value=" 1.000000, 1.000000" />
+      <input name="file" type="filename" colorspace="srgb_texture" value="textures/Iberian_Blue_Ceramic_Tiles_baseColor.png" />
+      <input name="default" type="color3" value=" 0.000000, 0.000000, 0.000000" />
+      <input name="filtertype" type="string" value="linear" />
+      <input name="framerange" type="string" value="" />
+      <input name="frameoffset" type="integer" value="0" />
+      <input name="frameendaction" type="string" value="constant" />
+    </tiledimage>
+    <texcoord name="node_texcoord_vector2_2" type="vector2">
+      <input name="index" type="integer" value="0" />
+    </texcoord>
+    <multiply name="node_multiply_1" type="vector2">
+      <input name="in1" type="vector2" nodename="node_texcoord_vector2_2" />
+      <input name="in2" type="float" nodename="UVScale" />
+    </multiply>
+    <extract name="node_extract_3" type="float">
+      <input name="in" type="vector3" nodename="node_image_vector3_4" />
+      <input name="index" type="integer" value="1" />
+    </extract>
+    <normalmap name="node_normalmap" type="vector3">
+      <input name="in" type="vector3" nodename="node_image_vector3_6" />
+    </normalmap>
+    <image name="node_image_vector3_6" type="vector3" GLSLFX_usage="normal" expose="true">
+      <input name="texcoord" type="vector2" nodename="node_multiply_1" />
+      <input name="file" type="filename" value="textures/Iberian_Blue_Ceramic_Tiles_normal.png" />
+      <input name="layer" type="string" value="" />
+      <input name="default" type="vector3" value=" 0.000000, 0.000000, 0.000000" />
+      <input name="uaddressmode" type="string" value="periodic" />
+      <input name="vaddressmode" type="string" value="periodic" />
+      <input name="filtertype" type="string" value="linear" />
+      <input name="framerange" type="string" value="" />
+      <input name="frameoffset" type="integer" value="0" />
+      <input name="frameendaction" type="string" value="constant" />
+    </image>
+    <image name="node_image_vector3_4" type="vector3" GLSLFX_usage="roughness" expose="true">
+      <input name="texcoord" type="vector2" nodename="node_multiply_1" />
+      <input name="file" type="filename" value="textures/Iberian_Blue_Ceramic_Tiles_roughness.png" />
+      <input name="layer" type="string" value="" />
+      <input name="default" type="vector3" value=" 0.000000, 0.000000, 0.000000" />
+      <input name="uaddressmode" type="string" value="periodic" />
+      <input name="vaddressmode" type="string" value="periodic" />
+      <input name="filtertype" type="string" value="linear" />
+      <input name="framerange" type="string" value="" />
+      <input name="frameoffset" type="integer" value="0" />
+      <input name="frameendaction" type="string" value="constant" />
+    </image>
+    <extract name="node_extract_7" type="float">
+      <input name="in" type="vector3" nodename="node_image_vector3_4" />
+      <input name="index" type="integer" value="2" />
+    </extract>
+    <output name="base_color_output" type="color3" nodename="node_tiledimage_color3_0" />
+    <output name="metalness_output" type="float" nodename="node_extract_7" />
+    <output name="specular_roughness_output" type="float" nodename="node_mix_8" />
+    <normal name="onthefly_9" type="vector3">
+      <input name="space" type="string" value="world" />
+    </normal>
+    <output name="coat_normal_output" type="vector3" nodename="onthefly_9" />
+    <output name="normal_output" type="vector3" nodename="node_normalmap" />
+    <tangent name="onthefly_10" type="vector3">
+      <input name="space" type="string" value="world" />
+    </tangent>
+    <output name="tangent_output" type="vector3" nodename="onthefly_10" />
+    <mix name="node_mix_8" type="float">
+      <input name="fg" type="float" nodename="RoughnessHigh" />
+      <input name="bg" type="float" nodename="RoughnessLow" />
+      <input name="mix" type="float" nodename="node_extract_3" />
+    </mix>
+    <constant name="RoughnessHigh" type="float">
+      <input name="value" type="float" value="1.0" />
+    </constant>
+    <constant name="RoughnessLow" type="float">
+      <input name="value" type="float" value="0.0" />
+    </constant>
+    <constant name="UVScale" type="float">
+      <input name="value" type="float" value="1.0" />
+    </constant>
+  </nodegraph>
+  <standard_surface name="SR_Iberian_Blue_Ceramic_Tiles" type="surfaceshader">
+    <input name="base" type="float" value="0.800000011920929" />
+    <input name="base_color" type="color3" output="base_color_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+    <input name="diffuse_roughness" type="float" value="0.0" />
+    <input name="metalness" type="float" output="metalness_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+    <input name="specular" type="float" value="1.0" />
+    <input name="specular_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="specular_roughness" type="float" output="specular_roughness_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+    <input name="specular_IOR" type="float" value="1.5" />
+    <input name="specular_anisotropy" type="float" value="0.0" />
+    <input name="specular_rotation" type="float" value="0.0" />
+    <input name="transmission" type="float" value="0.0" />
+    <input name="transmission_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="transmission_depth" type="float" value="0.0" />
+    <input name="transmission_scatter" type="color3" value=" 0.000000, 0.000000, 0.000000" />
+    <input name="transmission_scatter_anisotropy" type="float" value="0.0" />
+    <input name="transmission_dispersion" type="float" value="0.0" />
+    <input name="transmission_extra_roughness" type="float" value="0.0" />
+    <input name="subsurface" type="float" value="0.0" />
+    <input name="subsurface_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="subsurface_radius" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="subsurface_scale" type="float" value="1.0" />
+    <input name="subsurface_anisotropy" type="float" value="0.0" />
+    <input name="sheen" type="float" value="0.0" />
+    <input name="sheen_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="sheen_roughness" type="float" value="0.30000001192092896" />
+    <input name="coat" type="float" value="0.0" />
+    <input name="coat_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="coat_roughness" type="float" value="0.10000000149011612" />
+    <input name="coat_anisotropy" type="float" value="0.0" />
+    <input name="coat_rotation" type="float" value="0.0" />
+    <input name="coat_IOR" type="float" value="1.5" />
+    <input name="coat_normal" type="vector3" output="coat_normal_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+    <input name="coat_affect_color" type="float" value="0.0" />
+    <input name="coat_affect_roughness" type="float" value="0.0" />
+    <input name="thin_film_thickness" type="float" value="0.0" />
+    <input name="thin_film_IOR" type="float" value="1.5" />
+    <input name="emission" type="float" value="0.0" />
+    <input name="emission_color" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="opacity" type="color3" value=" 1.000000, 1.000000, 1.000000" />
+    <input name="thin_walled" type="boolean" value="false" />
+    <input name="normal" type="vector3" output="normal_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+    <input name="tangent" type="vector3" output="tangent_output" nodegraph="NG_Iberian_Blue_Ceramic_Tiles" />
+  </standard_surface>
+  <surfacematerial name="Iberian_Blue_Ceramic_Tiles" type="material">
+    <input name="surfaceshader" type="surfaceshader" nodename="SR_Iberian_Blue_Ceramic_Tiles" />
+  </surfacematerial>
+</materialx>
\ No newline at end of file
diff --git a/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_baseColor.png b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_baseColor.png
new file mode 100644
index 0000000..11d3a7e
--- /dev/null
+++ b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_baseColor.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:98e45bfb81213c539f7183eff9eb2d4e919ccdf069a7e174729cf4f741dcfe38
+size 1656966
diff --git a/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_normal.png b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_normal.png
new file mode 100644
index 0000000..5eac24a
--- /dev/null
+++ b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_normal.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a38b031e120aa04a4d4b12d30e9e94ee86371273ae772bbb660cb314207e369a
+size 645839
diff --git a/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_roughness.png b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_roughness.png
new file mode 100644
index 0000000..3d8ea54
--- /dev/null
+++ b/src/Tests/Integration/data/Iberian_Blue_Ceramic_Tiles_1k_8b/textures/Iberian_Blue_Ceramic_Tiles_roughness.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a9ac1105a573163ecb08fff498522359ed309951568c6da4a2530024e7707fd3
+size 730353
diff --git a/src/Tests/Integration/data/animated_camera.usda b/src/Tests/Integration/data/animated_camera.usda
new file mode 100644
index 0000000..0662e38
--- /dev/null
+++ b/src/Tests/Integration/data/animated_camera.usda
@@ -0,0 +1,1078 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.7.4.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 100
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-5, -5, 0), (5, 5, 10)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)],
+        }
+        color3f[] primvars:displayColor = [(0.49411765, 0.3647059, 0.8156863)]
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        texCoord2f[] primvars:st (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:st:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
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+            45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
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+            88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [1],
+            }
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [0],
+            }
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [5],
+            }
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [3],
+            }
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [2],
+            }
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [4],
+            }
+        }
+    }
+
+    def Camera "PhysCamera001"
+    {
+        float exposure.timeSamples = {
+            0: 6,
+            1: 6,
+            2: 6,
+            3: 6,
+            4: 6,
+            5: 6,
+            6: 6,
+            7: 6,
+            8: 6,
+            9: 6,
+            10: 6,
+            11: 6,
+            12: 6,
+            13: 6,
+            14: 6,
+            15: 6,
+            16: 6,
+            17: 6,
+            18: 6,
+            19: 6,
+            20: 6,
+            21: 6,
+            22: 6,
+            23: 6,
+            24: 6,
+            25: 6,
+            26: 6,
+            27: 6,
+            28: 6,
+            29: 6,
+            30: 6,
+            31: 6,
+            32: 6,
+            33: 6,
+            34: 6,
+            35: 6,
+            36: 6,
+            37: 6,
+            38: 6,
+            39: 6,
+            40: 6,
+            41: 6,
+            42: 6,
+            43: 6,
+            44: 6,
+            45: 6,
+            46: 6,
+            47: 6,
+            48: 6,
+            49: 6,
+            50: 6,
+            51: 6,
+            52: 6,
+            53: 6,
+            54: 6,
+            55: 6,
+            56: 6,
+            57: 6,
+            58: 6,
+            59: 6,
+            60: 6,
+            61: 6,
+            62: 6,
+            63: 6,
+            64: 6,
+            65: 6,
+            66: 6,
+            67: 6,
+            68: 6,
+            69: 6,
+            70: 6,
+            71: 6,
+            72: 6,
+            73: 6,
+            74: 6,
+            75: 6,
+            76: 6,
+            77: 6,
+            78: 6,
+            79: 6,
+            80: 6,
+            81: 6,
+            82: 6,
+            83: 6,
+            84: 6,
+            85: 6,
+            86: 6,
+            87: 6,
+            88: 6,
+            89: 6,
+            90: 6,
+            91: 6,
+            92: 6,
+            93: 6,
+            94: 6,
+            95: 6,
+            96: 6,
+            97: 6,
+            98: 6,
+            99: 6,
+            100: 6,
+        }
+        float focalLength.timeSamples = {
+            0: 40.593544,
+            1: 40.612038,
+            2: 40.667023,
+            3: 40.75775,
+            4: 40.883507,
+            5: 41.043556,
+            6: 41.237164,
+            7: 41.46361,
+            8: 41.722187,
+            9: 42.01217,
+            10: 42.332844,
+            11: 42.68351,
+            12: 43.06345,
+            13: 43.471962,
+            14: 43.90835,
+            15: 44.371906,
+            16: 44.86193,
+            17: 45.377735,
+            18: 45.918617,
+            19: 46.483887,
+            20: 47.072845,
+            21: 47.684814,
+            22: 48.3191,
+            23: 48.975006,
+            24: 49.65185,
+            25: 50.34894,
+            26: 51.06561,
+            27: 51.801144,
+            28: 52.55488,
+            29: 53.32611,
+            30: 54.114174,
+            31: 54.918377,
+            32: 55.738026,
+            33: 56.57244,
+            34: 57.420944,
+            35: 58.282825,
+            36: 59.157417,
+            37: 60.044025,
+            38: 60.941948,
+            39: 61.850506,
+            40: 62.769,
+            41: 63.696724,
+            42: 64.63299,
+            43: 65.577095,
+            44: 66.528336,
+            45: 67.48599,
+            46: 68.44936,
+            47: 69.41773,
+            48: 70.39039,
+            49: 71.366585,
+            50: 72.34562,
+            51: 73.326744,
+            52: 74.30922,
+            53: 75.292305,
+            54: 76.27525,
+            55: 77.2573,
+            56: 78.237686,
+            57: 79.21564,
+            58: 80.19035,
+            59: 81.161095,
+            60: 82.127014,
+            61: 83.08735,
+            62: 84.041275,
+            63: 84.98794,
+            64: 85.926544,
+            65: 86.85623,
+            66: 87.77616,
+            67: 88.685455,
+            68: 89.58325,
+            69: 90.468666,
+            70: 91.3408,
+            71: 92.19876,
+            72: 93.0416,
+            73: 93.86845,
+            74: 94.678314,
+            75: 95.470276,
+            76: 96.24337,
+            77: 96.99665,
+            78: 97.729126,
+            79: 98.43981,
+            80: 99.12774,
+            81: 99.79188,
+            82: 100.431244,
+            83: 101.04483,
+            84: 101.63162,
+            85: 102.1906,
+            86: 102.72075,
+            87: 103.22105,
+            88: 103.69046,
+            89: 104.128006,
+            90: 104.532646,
+            91: 104.90337,
+            92: 105.23918,
+            93: 105.53908,
+            94: 105.80208,
+            95: 106.0272,
+            96: 106.21348,
+            97: 106.359955,
+            98: 106.4657,
+            99: 106.52982,
+            100: 106.55139,
+        }
+        float focusDistance.timeSamples = {
+            0: 107.70329,
+            1: 107.68946,
+            2: 107.64834,
+            3: 107.58047,
+            4: 107.48644,
+            5: 107.366806,
+            6: 107.222145,
+            7: 107.05304,
+            8: 106.86003,
+            9: 106.64373,
+            10: 106.4047,
+            11: 106.14354,
+            12: 105.8608,
+            13: 105.5571,
+            14: 105.23301,
+            15: 104.889114,
+            16: 104.52602,
+            17: 104.1443,
+            18: 103.744545,
+            19: 103.32737,
+            20: 102.89335,
+            21: 102.44308,
+            22: 101.97716,
+            23: 101.496185,
+            24: 101.000755,
+            25: 100.49147,
+            26: 99.96892,
+            27: 99.433716,
+            28: 98.88643,
+            29: 98.32768,
+            30: 97.75808,
+            31: 97.178185,
+            32: 96.58863,
+            33: 95.99,
+            34: 95.3829,
+            35: 94.767914,
+            36: 94.14565,
+            37: 93.516685,
+            38: 92.881645,
+            39: 92.2411,
+            40: 91.595634,
+            41: 90.945854,
+            42: 90.29235,
+            43: 89.6357,
+            44: 88.976494,
+            45: 88.31532,
+            46: 87.65273,
+            47: 86.98935,
+            48: 86.325714,
+            49: 85.66241,
+            50: 85,
+            51: 84.33906,
+            52: 83.68015,
+            53: 83.02383,
+            54: 82.370636,
+            55: 81.72113,
+            56: 81.07587,
+            57: 80.43538,
+            58: 79.80018,
+            59: 79.17082,
+            60: 78.54782,
+            61: 77.93169,
+            62: 77.32295,
+            63: 76.72211,
+            64: 76.12965,
+            65: 75.54606,
+            66: 74.97185,
+            67: 74.40746,
+            68: 73.85339,
+            69: 73.3101,
+            70: 72.77803,
+            71: 72.257614,
+            72: 71.74932,
+            73: 71.25357,
+            74: 70.77078,
+            75: 70.3014,
+            76: 69.84578,
+            77: 69.404366,
+            78: 68.97755,
+            79: 68.56569,
+            80: 68.1692,
+            81: 67.78845,
+            82: 67.42382,
+            83: 67.07566,
+            84: 66.744354,
+            85: 66.43024,
+            86: 66.13369,
+            87: 65.85507,
+            88: 65.594734,
+            89: 65.35303,
+            90: 65.13034,
+            91: 64.926994,
+            92: 64.743385,
+            93: 64.57988,
+            94: 64.43686,
+            95: 64.314705,
+            96: 64.21381,
+            97: 64.134605,
+            98: 64.077484,
+            99: 64.04288,
+            100: 64.03124,
+        }
+        float fStop.timeSamples = {
+            0: 8,
+            1: 8,
+            2: 8,
+            3: 8,
+            4: 8,
+            5: 8,
+            6: 8,
+            7: 8,
+            8: 8,
+            9: 8,
+            10: 8,
+            11: 8,
+            12: 8,
+            13: 8,
+            14: 8,
+            15: 8,
+            16: 8,
+            17: 8,
+            18: 8,
+            19: 8,
+            20: 8,
+            21: 8,
+            22: 8,
+            23: 8,
+            24: 8,
+            25: 8,
+            26: 8,
+            27: 8,
+            28: 8,
+            29: 8,
+            30: 8,
+            31: 8,
+            32: 8,
+            33: 8,
+            34: 8,
+            35: 8,
+            36: 8,
+            37: 8,
+            38: 8,
+            39: 8,
+            40: 8,
+            41: 8,
+            42: 8,
+            43: 8,
+            44: 8,
+            45: 8,
+            46: 8,
+            47: 8,
+            48: 8,
+            49: 8,
+            50: 8,
+            51: 8,
+            52: 8,
+            53: 8,
+            54: 8,
+            55: 8,
+            56: 8,
+            57: 8,
+            58: 8,
+            59: 8,
+            60: 8,
+            61: 8,
+            62: 8,
+            63: 8,
+            64: 8,
+            65: 8,
+            66: 8,
+            67: 8,
+            68: 8,
+            69: 8,
+            70: 8,
+            71: 8,
+            72: 8,
+            73: 8,
+            74: 8,
+            75: 8,
+            76: 8,
+            77: 8,
+            78: 8,
+            79: 8,
+            80: 8,
+            81: 8,
+            82: 8,
+            83: 8,
+            84: 8,
+            85: 8,
+            86: 8,
+            87: 8,
+            88: 8,
+            89: 8,
+            90: 8,
+            91: 8,
+            92: 8,
+            93: 8,
+            94: 8,
+            95: 8,
+            96: 8,
+            97: 8,
+            98: 8,
+            99: 8,
+            100: 8,
+        }
+        float horizontalAperture.timeSamples = {
+            0: 36,
+            1: 36,
+            2: 36,
+            3: 36,
+            4: 36.000004,
+            5: 36.000004,
+            6: 36.000004,
+            7: 35.999996,
+            8: 36,
+            9: 36,
+            10: 36.000004,
+            11: 35.999996,
+            12: 35.999996,
+            13: 36,
+            14: 36,
+            15: 36,
+            16: 36,
+            17: 35.999996,
+            18: 36,
+            19: 36.000004,
+            20: 36,
+            21: 36,
+            22: 36.000008,
+            23: 36.000004,
+            24: 36.000004,
+            25: 36,
+            26: 36.000004,
+            27: 36,
+            28: 36.000004,
+            29: 35.999996,
+            30: 36.000004,
+            31: 36,
+            32: 36,
+            33: 35.999996,
+            34: 36.000004,
+            35: 35.999996,
+            36: 36,
+            37: 35.999996,
+            38: 35.999996,
+            39: 36.000004,
+            40: 36.000008,
+            41: 36,
+            42: 36,
+            43: 36,
+            44: 36.000004,
+            45: 36.000004,
+            46: 36,
+            47: 35.999992,
+            48: 36,
+            49: 36.000004,
+            50: 36,
+            51: 36,
+            52: 35.999996,
+            53: 35.999996,
+            54: 36,
+            55: 36.000004,
+            56: 36,
+            57: 36.000004,
+            58: 36,
+            59: 36,
+            60: 36,
+            61: 36,
+            62: 36.000004,
+            63: 36,
+            64: 35.999996,
+            65: 35.999996,
+            66: 36,
+            67: 36,
+            68: 36,
+            69: 36.000004,
+            70: 36,
+            71: 36,
+            72: 36,
+            73: 36,
+            74: 36,
+            75: 35.999996,
+            76: 36,
+            77: 35.999996,
+            78: 36,
+            79: 36.000004,
+            80: 36,
+            81: 36.000004,
+            82: 35.999996,
+            83: 36,
+            84: 36.000004,
+            85: 36,
+            86: 35.999996,
+            87: 35.999996,
+            88: 36.000004,
+            89: 36,
+            90: 36.000004,
+            91: 36.000004,
+            92: 36.000004,
+            93: 36.000004,
+            94: 36,
+            95: 36,
+            96: 36.000004,
+            97: 35.999996,
+            98: 36,
+            99: 36.000004,
+            100: 36,
+        }
+        token projection = "perspective"
+        double shutter:close.timeSamples = {
+            0: 449.99997653067237,
+            1: 449.99997653067237,
+            2: 449.99997653067237,
+            3: 449.99997653067237,
+            4: 449.99997653067237,
+            5: 449.99997653067237,
+            6: 449.99997653067237,
+            7: 449.99997653067237,
+            8: 449.99997653067237,
+            9: 449.99997653067237,
+            10: 449.99997653067237,
+            11: 449.99997653067237,
+            12: 449.99997653067237,
+            13: 449.99997653067237,
+            14: 449.99997653067237,
+            15: 449.99997653067237,
+            16: 449.99997653067237,
+            17: 449.99997653067237,
+            18: 449.99997653067237,
+            19: 449.99997653067237,
+            20: 449.99997653067237,
+            21: 449.99997653067237,
+            22: 449.99997653067237,
+            23: 449.99997653067237,
+            24: 449.99997653067237,
+            25: 449.99997653067237,
+            26: 449.99997653067237,
+            27: 449.99997653067237,
+            28: 449.99997653067237,
+            29: 449.99997653067237,
+            30: 449.99997653067237,
+            31: 449.99997653067237,
+            32: 449.99997653067237,
+            33: 449.99997653067237,
+            34: 449.99997653067237,
+            35: 449.99997653067237,
+            36: 449.99997653067237,
+            37: 449.99997653067237,
+            38: 449.99997653067237,
+            39: 449.99997653067237,
+            40: 449.99997653067237,
+            41: 449.99997653067237,
+            42: 449.99997653067237,
+            43: 449.99997653067237,
+            44: 449.99997653067237,
+            45: 449.99997653067237,
+            46: 449.99997653067237,
+            47: 449.99997653067237,
+            48: 449.99997653067237,
+            49: 449.99997653067237,
+            50: 449.99997653067237,
+            51: 449.99997653067237,
+            52: 449.99997653067237,
+            53: 449.99997653067237,
+            54: 449.99997653067237,
+            55: 449.99997653067237,
+            56: 449.99997653067237,
+            57: 449.99997653067237,
+            58: 449.99997653067237,
+            59: 449.99997653067237,
+            60: 449.99997653067237,
+            61: 449.99997653067237,
+            62: 449.99997653067237,
+            63: 449.99997653067237,
+            64: 449.99997653067237,
+            65: 449.99997653067237,
+            66: 449.99997653067237,
+            67: 449.99997653067237,
+            68: 449.99997653067237,
+            69: 449.99997653067237,
+            70: 449.99997653067237,
+            71: 449.99997653067237,
+            72: 449.99997653067237,
+            73: 449.99997653067237,
+            74: 449.99997653067237,
+            75: 449.99997653067237,
+            76: 449.99997653067237,
+            77: 449.99997653067237,
+            78: 449.99997653067237,
+            79: 449.99997653067237,
+            80: 449.99997653067237,
+            81: 449.99997653067237,
+            82: 449.99997653067237,
+            83: 449.99997653067237,
+            84: 449.99997653067237,
+            85: 449.99997653067237,
+            86: 449.99997653067237,
+            87: 449.99997653067237,
+            88: 449.99997653067237,
+            89: 449.99997653067237,
+            90: 449.99997653067237,
+            91: 449.99997653067237,
+            92: 449.99997653067237,
+            93: 449.99997653067237,
+            94: 449.99997653067237,
+            95: 449.99997653067237,
+            96: 449.99997653067237,
+            97: 449.99997653067237,
+            98: 449.99997653067237,
+            99: 449.99997653067237,
+            100: 449.99997653067237,
+        }
+        float verticalAperture.timeSamples = {
+            0: 20.25,
+            1: 20.25,
+            2: 20.25,
+            3: 20.25,
+            4: 20.250002,
+            5: 20.250002,
+            6: 20.250002,
+            7: 20.249998,
+            8: 20.25,
+            9: 20.25,
+            10: 20.250002,
+            11: 20.249998,
+            12: 20.249998,
+            13: 20.25,
+            14: 20.25,
+            15: 20.25,
+            16: 20.25,
+            17: 20.249998,
+            18: 20.25,
+            19: 20.250002,
+            20: 20.25,
+            21: 20.25,
+            22: 20.250004,
+            23: 20.250002,
+            24: 20.250002,
+            25: 20.25,
+            26: 20.250002,
+            27: 20.25,
+            28: 20.250002,
+            29: 20.249998,
+            30: 20.250002,
+            31: 20.25,
+            32: 20.25,
+            33: 20.249998,
+            34: 20.250002,
+            35: 20.249998,
+            36: 20.25,
+            37: 20.249998,
+            38: 20.249998,
+            39: 20.250002,
+            40: 20.250004,
+            41: 20.25,
+            42: 20.25,
+            43: 20.25,
+            44: 20.250002,
+            45: 20.250002,
+            46: 20.25,
+            47: 20.249996,
+            48: 20.25,
+            49: 20.250002,
+            50: 20.25,
+            51: 20.25,
+            52: 20.249998,
+            53: 20.249998,
+            54: 20.25,
+            55: 20.250002,
+            56: 20.25,
+            57: 20.250002,
+            58: 20.25,
+            59: 20.25,
+            60: 20.25,
+            61: 20.25,
+            62: 20.250002,
+            63: 20.25,
+            64: 20.249998,
+            65: 20.249998,
+            66: 20.25,
+            67: 20.25,
+            68: 20.25,
+            69: 20.250002,
+            70: 20.25,
+            71: 20.25,
+            72: 20.25,
+            73: 20.25,
+            74: 20.25,
+            75: 20.249998,
+            76: 20.25,
+            77: 20.249998,
+            78: 20.25,
+            79: 20.250002,
+            80: 20.25,
+            81: 20.250002,
+            82: 20.249998,
+            83: 20.25,
+            84: 20.250002,
+            85: 20.25,
+            86: 20.249998,
+            87: 20.249998,
+            88: 20.250002,
+            89: 20.25,
+            90: 20.250002,
+            91: 20.250002,
+            92: 20.250002,
+            93: 20.250002,
+            94: 20.25,
+            95: 20.25,
+            96: 20.250002,
+            97: 20.249998,
+            98: 20.25,
+            99: 20.250002,
+            100: 20.25,
+        }
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (-1, 0, 0, 0), (0, -0.371391, 0.928477, 0), (0, 0.928477, 0.371391, 0), (0, 100, 40, 1) ),
+            1: ( (-1, 0, 0, 0), (0, -0.371438, 0.928458, 0), (0, 0.928458, 0.371438, 0), (0, 99.9851, 40, 1) ),
+            2: ( (-1, 0, 0, 0), (0, -0.37158, 0.928401, 0), (0, 0.928401, 0.37158, 0), (0, 99.9408, 40, 1) ),
+            3: ( (-1, 0, 0, 0), (0, -0.371815, 0.928307, 0), (0, 0.928307, 0.371815, 0), (0, 99.8677, 40, 1) ),
+            4: ( (-1, 0, 0, 0), (0, -0.37214, 0.928177, 0), (0, 0.928177, 0.37214, 0), (0, 99.7664, 40, 1) ),
+            5: ( (-1, 0, 0, 0), (0, -0.372555, 0.92801, 0), (0, 0.92801, 0.372555, 0), (0, 99.6375, 40, 1) ),
+            6: ( (-1, 0, 0, 0), (0, -0.373057, 0.927808, 0), (0, 0.927808, 0.373057, 0), (0, 99.4816, 40, 1) ),
+            7: ( (-1, 0, 0, 0), (0, -0.373647, 0.927571, 0), (0, 0.927571, 0.373647, 0), (0, 99.2993, 40, 1) ),
+            8: ( (-1, 0, 0, 0), (0, -0.374321, 0.927299, 0), (0, 0.927299, 0.374321, 0), (0, 99.0912, 40, 1) ),
+            9: ( (-1, 0, 0, 0), (0, -0.375081, 0.926992, 0), (0, 0.926992, 0.375081, 0), (0, 98.8579, 40, 1) ),
+            10: ( (-1, 0, 0, 0), (0, -0.375923, 0.926651, 0), (0, 0.926651, 0.375923, 0), (0, 98.6, 40, 1) ),
+            11: ( (-1, 0, 0, 0), (0, -0.376848, 0.926275, 0), (0, 0.926275, 0.376848, 0), (0, 98.3181, 40, 1) ),
+            12: ( (-1, 0, 0, 0), (0, -0.377855, 0.925865, 0), (0, 0.925865, 0.377855, 0), (0, 98.0128, 40, 1) ),
+            13: ( (-1, 0, 0, 0), (0, -0.378942, 0.92542, 0), (0, 0.92542, 0.378942, 0), (0, 97.6847, 40, 1) ),
+            14: ( (-1, 0, 0, 0), (0, -0.380109, 0.924942, 0), (0, 0.924942, 0.380109, 0), (0, 97.3344, 40, 1) ),
+            15: ( (-1, 0, 0, 0), (0, -0.381355, 0.924429, 0), (0, 0.924429, 0.381355, 0), (0, 96.9625, 40, 1) ),
+            16: ( (-1, 0, 0, 0), (0, -0.38268, 0.923881, 0), (0, 0.923881, 0.38268, 0), (0, 96.5696, 40, 1) ),
+            17: ( (-1, 0, 0, 0), (0, -0.384082, 0.923299, 0), (0, 0.923299, 0.384082, 0), (0, 96.1563, 40, 1) ),
+            18: ( (-1, 0, 0, 0), (0, -0.385562, 0.922682, 0), (0, 0.922682, 0.385562, 0), (0, 95.7232, 40, 1) ),
+            19: ( (-1, 0, 0, 0), (0, -0.387119, 0.92203, 0), (0, 0.92203, 0.387119, 0), (0, 95.2709, 40, 1) ),
+            20: ( (-1, 0, 0, 0), (0, -0.388752, 0.921342, 0), (0, 0.921342, 0.388752, 0), (0, 94.8, 40, 1) ),
+            21: ( (-1, 0, 0, 0), (0, -0.390461, 0.92062, 0), (0, 0.92062, 0.390461, 0), (0, 94.3111, 40, 1) ),
+            22: ( (-1, 0, 0, 0), (0, -0.392245, 0.919861, 0), (0, 0.919861, 0.392245, 0), (0, 93.8048, 40, 1) ),
+            23: ( (-1, 0, 0, 0), (0, -0.394103, 0.919066, 0), (0, 0.919066, 0.394103, 0), (0, 93.2817, 40, 1) ),
+            24: ( (-1, 0, 0, 0), (0, -0.396037, 0.918235, 0), (0, 0.918235, 0.396037, 0), (0, 92.7424, 40, 1) ),
+            25: ( (-1, 0, 0, 0), (0, -0.398044, 0.917366, 0), (0, 0.917366, 0.398044, 0), (0, 92.1875, 40, 1) ),
+            26: ( (-1, 0, 0, 0), (0, -0.400124, 0.916461, 0), (0, 0.916461, 0.400124, 0), (0, 91.6176, 40, 1) ),
+            27: ( (-1, 0, 0, 0), (0, -0.402278, 0.915518, 0), (0, 0.915518, 0.402278, 0), (0, 91.0333, 40, 1) ),
+            28: ( (-1, 0, 0, 0), (0, -0.404504, 0.914536, 0), (0, 0.914536, 0.404504, 0), (0, 90.4352, 40, 1) ),
+            29: ( (-1, 0, 0, 0), (0, -0.406803, 0.913516, 0), (0, 0.913516, 0.406803, 0), (0, 89.8239, 40, 1) ),
+            30: ( (-1, 0, 0, 0), (0, -0.409173, 0.912457, 0), (0, 0.912457, 0.409173, 0), (0, 89.2, 40, 1) ),
+            31: ( (-1, 0, 0, 0), (0, -0.411615, 0.911358, 0), (0, 0.911358, 0.411615, 0), (0, 88.5641, 40, 1) ),
+            32: ( (-1, 0, 0, 0), (0, -0.414127, 0.910219, 0), (0, 0.910219, 0.414127, 0), (0, 87.9168, 40, 1) ),
+            33: ( (-1, 0, 0, 0), (0, -0.41671, 0.909039, 0), (0, 0.909039, 0.41671, 0), (0, 87.2587, 40, 1) ),
+            34: ( (-1, 0, 0, 0), (0, -0.419362, 0.907819, 0), (0, 0.907819, 0.419362, 0), (0, 86.5904, 40, 1) ),
+            35: ( (-1, 0, 0, 0), (0, -0.422084, 0.906557, 0), (0, 0.906557, 0.422084, 0), (0, 85.9125, 40, 1) ),
+            36: ( (-1, 0, 0, 0), (0, -0.424874, 0.905253, 0), (0, 0.905253, 0.424874, 0), (0, 85.2256, 40, 1) ),
+            37: ( (-1, 0, 0, 0), (0, -0.427731, 0.903906, 0), (0, 0.903906, 0.427731, 0), (0, 84.5303, 40, 1) ),
+            38: ( (-1, 0, 0, 0), (0, -0.430656, 0.902516, 0), (0, 0.902516, 0.430656, 0), (0, 83.8272, 40, 1) ),
+            39: ( (-1, 0, 0, 0), (0, -0.433646, 0.901083, 0), (0, 0.901083, 0.433646, 0), (0, 83.1169, 40, 1) ),
+            40: ( (-1, 0, 0, 0), (0, -0.436702, 0.899606, 0), (0, 0.899606, 0.436702, 0), (0, 82.4, 40, 1) ),
+            41: ( (-1, 0, 0, 0), (0, -0.439822, 0.898085, 0), (0, 0.898085, 0.439822, 0), (0, 81.6771, 40, 1) ),
+            42: ( (-1, 0, 0, 0), (0, -0.443005, 0.896519, 0), (0, 0.896519, 0.443005, 0), (0, 80.9488, 40, 1) ),
+            43: ( (-1, 0, 0, 0), (0, -0.446251, 0.894908, 0), (0, 0.894908, 0.446251, 0), (0, 80.2157, 40, 1) ),
+            44: ( (-1, 0, 0, 0), (0, -0.449557, 0.893252, 0), (0, 0.893252, 0.449557, 0), (0, 79.4784, 40, 1) ),
+            45: ( (-1, 0, 0, 0), (0, -0.452923, 0.89155, 0), (0, 0.89155, 0.452923, 0), (0, 78.7375, 40, 1) ),
+            46: ( (-1, 0, 0, 0), (0, -0.456346, 0.889802, 0), (0, 0.889802, 0.456346, 0), (0, 77.9936, 40, 1) ),
+            47: ( (-1, 0, 0, 0), (0, -0.459826, 0.888009, 0), (0, 0.888009, 0.459826, 0), (0, 77.2473, 40, 1) ),
+            48: ( (-1, 0, 0, 0), (0, -0.463361, 0.886169, 0), (0, 0.886169, 0.463361, 0), (0, 76.4992, 40, 1) ),
+            49: ( (-1, 0, 0, 0), (0, -0.466949, 0.884284, 0), (0, 0.884284, 0.466949, 0), (0, 75.7499, 40, 1) ),
+            50: ( (-1, 0, 0, 0), (0, -0.470588, 0.882353, 0), (0, 0.882353, 0.470588, 0), (0, 75, 40, 1) ),
+            51: ( (-1, 0, 0, 0), (0, -0.474276, 0.880376, 0), (0, 0.880376, 0.474276, 0), (0, 74.2501, 40, 1) ),
+            52: ( (-1, 0, 0, 0), (0, -0.478011, 0.878354, 0), (0, 0.878354, 0.478011, 0), (0, 73.5008, 40, 1) ),
+            53: ( (-1, 0, 0, 0), (0, -0.481789, 0.876287, 0), (0, 0.876287, 0.481789, 0), (0, 72.7527, 40, 1) ),
+            54: ( (-1, 0, 0, 0), (0, -0.48561, 0.874176, 0), (0, 0.874176, 0.48561, 0), (0, 72.0064, 40, 1) ),
+            55: ( (-1, 0, 0, 0), (0, -0.489469, 0.87202, 0), (0, 0.87202, 0.489469, 0), (0, 71.2625, 40, 1) ),
+            56: ( (-1, 0, 0, 0), (0, -0.493365, 0.869822, 0), (0, 0.869822, 0.493365, 0), (0, 70.5216, 40, 1) ),
+            57: ( (-1, 0, 0, 0), (0, -0.497294, 0.867582, 0), (0, 0.867582, 0.497294, 0), (0, 69.7843, 40, 1) ),
+            58: ( (-1, 0, 0, 0), (0, -0.501252, 0.865301, 0), (0, 0.865301, 0.501252, 0), (0, 69.0512, 40, 1) ),
+            59: ( (-1, 0, 0, 0), (0, -0.505237, 0.862981, 0), (0, 0.862981, 0.505237, 0), (0, 68.3229, 40, 1) ),
+            60: ( (-1, 0, 0, 0), (0, -0.509244, 0.860622, 0), (0, 0.860622, 0.509244, 0), (0, 67.6, 40, 1) ),
+            61: ( (-1, 0, 0, 0), (0, -0.51327, 0.858227, 0), (0, 0.858227, 0.51327, 0), (0, 66.8831, 40, 1) ),
+            62: ( (-1, 0, 0, 0), (0, -0.517311, 0.855798, 0), (0, 0.855798, 0.517311, 0), (0, 66.1728, 40, 1) ),
+            63: ( (-1, 0, 0, 0), (0, -0.521362, 0.853336, 0), (0, 0.853336, 0.521362, 0), (0, 65.4697, 40, 1) ),
+            64: ( (-1, 0, 0, 0), (0, -0.52542, 0.850843, 0), (0, 0.850843, 0.52542, 0), (0, 64.7744, 40, 1) ),
+            65: ( (-1, 0, 0, 0), (0, -0.529478, 0.848323, 0), (0, 0.848323, 0.529478, 0), (0, 64.0875, 40, 1) ),
+            66: ( (-1, 0, 0, 0), (0, -0.533534, 0.845779, 0), (0, 0.845779, 0.533534, 0), (0, 63.4096, 40, 1) ),
+            67: ( (-1, 0, 0, 0), (0, -0.53758, 0.843212, 0), (0, 0.843212, 0.53758, 0), (0, 62.7413, 40, 1) ),
+            68: ( (-1, 0, 0, 0), (0, -0.541614, 0.840628, 0), (0, 0.840628, 0.541614, 0), (0, 62.0832, 40, 1) ),
+            69: ( (-1, 0, 0, 0), (0, -0.545627, 0.838028, 0), (0, 0.838028, 0.545627, 0), (0, 61.4359, 40, 1) ),
+            70: ( (-1, 0, 0, 0), (0, -0.549616, 0.835417, 0), (0, 0.835417, 0.549616, 0), (0, 60.8, 40, 1) ),
+            71: ( (-1, 0, 0, 0), (0, -0.553575, 0.832799, 0), (0, 0.832799, 0.553575, 0), (0, 60.1761, 40, 1) ),
+            72: ( (-1, 0, 0, 0), (0, -0.557497, 0.830179, 0), (0, 0.830179, 0.557497, 0), (0, 59.5648, 40, 1) ),
+            73: ( (-1, 0, 0, 0), (0, -0.561375, 0.827561, 0), (0, 0.827561, 0.561375, 0), (0, 58.9667, 40, 1) ),
+            74: ( (-1, 0, 0, 0), (0, -0.565205, 0.824951, 0), (0, 0.824951, 0.565205, 0), (0, 58.3824, 40, 1) ),
+            75: ( (-1, 0, 0, 0), (0, -0.568979, 0.822352, 0), (0, 0.822352, 0.568979, 0), (0, 57.8125, 40, 1) ),
+            76: ( (-1, 0, 0, 0), (0, -0.57269, 0.819772, 0), (0, 0.819772, 0.57269, 0), (0, 57.2576, 40, 1) ),
+            77: ( (-1, 0, 0, 0), (0, -0.576333, 0.817215, 0), (0, 0.817215, 0.576333, 0), (0, 56.7183, 40, 1) ),
+            78: ( (-1, 0, 0, 0), (0, -0.579899, 0.814688, 0), (0, 0.814688, 0.579899, 0), (0, 56.1952, 40, 1) ),
+            79: ( (-1, 0, 0, 0), (0, -0.583382, 0.812198, 0), (0, 0.812198, 0.583382, 0), (0, 55.6889, 40, 1) ),
+            80: ( (-1, 0, 0, 0), (0, -0.586775, 0.80975, 0), (0, 0.80975, 0.586775, 0), (0, 55.2, 40, 1) ),
+            81: ( (-1, 0, 0, 0), (0, -0.590071, 0.807351, 0), (0, 0.807351, 0.590071, 0), (0, 54.7291, 40, 1) ),
+            82: ( (-1, 0, 0, 0), (0, -0.593262, 0.805009, 0), (0, 0.805009, 0.593262, 0), (0, 54.2768, 40, 1) ),
+            83: ( (-1, 0, 0, 0), (0, -0.596341, 0.802731, 0), (0, 0.802731, 0.596341, 0), (0, 53.8437, 40, 1) ),
+            84: ( (-1, 0, 0, 0), (0, -0.599302, 0.800523, 0), (0, 0.800523, 0.599302, 0), (0, 53.4304, 40, 1) ),
+            85: ( (-1, 0, 0, 0), (0, -0.602135, 0.798394, 0), (0, 0.798394, 0.602135, 0), (0, 53.0375, 40, 1) ),
+            86: ( (-1, 0, 0, 0), (0, -0.604835, 0.79635, 0), (0, 0.79635, 0.604835, 0), (0, 52.6656, 40, 1) ),
+            87: ( (-1, 0, 0, 0), (0, -0.607394, 0.7944, 0), (0, 0.7944, 0.607394, 0), (0, 52.3153, 40, 1) ),
+            88: ( (-1, 0, 0, 0), (0, -0.609805, 0.792551, 0), (0, 0.792551, 0.609805, 0), (0, 51.9872, 40, 1) ),
+            89: ( (-1, 0, 0, 0), (0, -0.61206, 0.790811, 0), (0, 0.790811, 0.61206, 0), (0, 51.6819, 40, 1) ),
+            90: ( (-1, 0, 0, 0), (0, -0.614153, 0.789187, 0), (0, 0.789187, 0.614153, 0), (0, 51.4, 40, 1) ),
+            91: ( (-1, 0, 0, 0), (0, -0.616077, 0.787686, 0), (0, 0.787686, 0.616077, 0), (0, 51.1421, 40, 1) ),
+            92: ( (-1, 0, 0, 0), (0, -0.617824, 0.786317, 0), (0, 0.786317, 0.617824, 0), (0, 50.9088, 40, 1) ),
+            93: ( (-1, 0, 0, 0), (0, -0.619388, 0.785085, 0), (0, 0.785085, 0.619388, 0), (0, 50.7007, 40, 1) ),
+            94: ( (-1, 0, 0, 0), (0, -0.620763, 0.783998, 0), (0, 0.783998, 0.620763, 0), (0, 50.5184, 40, 1) ),
+            95: ( (-1, 0, 0, 0), (0, -0.621942, 0.783064, 0), (0, 0.783064, 0.621942, 0), (0, 50.3625, 40, 1) ),
+            96: ( (-1, 0, 0, 0), (0, -0.622919, 0.782286, 0), (0, 0.782286, 0.622919, 0), (0, 50.2336, 40, 1) ),
+            97: ( (-1, 0, 0, 0), (0, -0.623688, 0.781673, 0), (0, 0.781673, 0.623688, 0), (0, 50.1323, 40, 1) ),
+            98: ( (-1, 0, 0, 0), (0, -0.624244, 0.781229, 0), (0, 0.781229, 0.624244, 0), (0, 50.0592, 40, 1) ),
+            99: ( (-1, 0, 0, 0), (0, -0.624582, 0.78096, 0), (0, 0.78096, 0.624582, 0), (0, 50.0149, 40, 1) ),
+            100: ( (-1, 0, 0, 0), (0, -0.624695, 0.780869, 0), (0, 0.780869, 0.624695, 0), (0, 50, 40, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/animated_camera_2.usda b/src/Tests/Integration/data/animated_camera_2.usda
new file mode 100644
index 0000000..965e14d
--- /dev/null
+++ b/src/Tests/Integration/data/animated_camera_2.usda
@@ -0,0 +1,1208 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.7.4.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 100
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-5, -5, 0), (5, 5, 10)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)],
+        }
+        color3f[] primvars:displayColor = [(0.49411765, 0.3647059, 0.8156863)]
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        texCoord2f[] primvars:st (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:st:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            41: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            42: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            43: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            44: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            54: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            55: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            56: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            57: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            58: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            59: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            60: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            61: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            62: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            63: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            64: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            65: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            66: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            67: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            68: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            69: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            70: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            71: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            72: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            73: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            74: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            75: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            76: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            77: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            78: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            79: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            80: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            81: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            82: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            83: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            84: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            85: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            86: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            87: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [1],
+            }
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [0],
+            }
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [5],
+            }
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [3],
+            }
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [2],
+            }
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [4],
+            }
+        }
+    }
+
+    def Camera "Cam1"
+    {
+        float exposure.timeSamples = {
+            0: 6,
+            1: 6,
+            2: 6,
+            3: 6,
+            4: 6,
+            5: 6,
+            6: 6,
+            7: 6,
+            8: 6,
+            9: 6,
+            10: 6,
+            11: 6,
+            12: 6,
+            13: 6,
+            14: 6,
+            15: 6,
+            16: 6,
+            17: 6,
+            18: 6,
+            19: 6,
+            20: 6,
+            21: 6,
+            22: 6,
+            23: 6,
+            24: 6,
+            25: 6,
+            26: 6,
+            27: 6,
+            28: 6,
+            29: 6,
+            30: 6,
+            31: 6,
+            32: 6,
+            33: 6,
+            34: 6,
+            35: 6,
+            36: 6,
+            37: 6,
+            38: 6,
+            39: 6,
+            40: 6,
+            41: 6,
+            42: 6,
+            43: 6,
+            44: 6,
+            45: 6,
+            46: 6,
+            47: 6,
+            48: 6,
+            49: 6,
+            50: 6,
+            51: 6,
+            52: 6,
+            53: 6,
+            54: 6,
+            55: 6,
+            56: 6,
+            57: 6,
+            58: 6,
+            59: 6,
+            60: 6,
+            61: 6,
+            62: 6,
+            63: 6,
+            64: 6,
+            65: 6,
+            66: 6,
+            67: 6,
+            68: 6,
+            69: 6,
+            70: 6,
+            71: 6,
+            72: 6,
+            73: 6,
+            74: 6,
+            75: 6,
+            76: 6,
+            77: 6,
+            78: 6,
+            79: 6,
+            80: 6,
+            81: 6,
+            82: 6,
+            83: 6,
+            84: 6,
+            85: 6,
+            86: 6,
+            87: 6,
+            88: 6,
+            89: 6,
+            90: 6,
+            91: 6,
+            92: 6,
+            93: 6,
+            94: 6,
+            95: 6,
+            96: 6,
+            97: 6,
+            98: 6,
+            99: 6,
+            100: 6,
+        }
+        float focalLength.timeSamples = {
+            0: 40.593544,
+            1: 40.612038,
+            2: 40.667023,
+            3: 40.75775,
+            4: 40.883507,
+            5: 41.043556,
+            6: 41.237164,
+            7: 41.46361,
+            8: 41.722187,
+            9: 42.01217,
+            10: 42.332844,
+            11: 42.68351,
+            12: 43.06345,
+            13: 43.471962,
+            14: 43.90835,
+            15: 44.371906,
+            16: 44.86193,
+            17: 45.377735,
+            18: 45.918617,
+            19: 46.483887,
+            20: 47.072845,
+            21: 47.684814,
+            22: 48.3191,
+            23: 48.975006,
+            24: 49.65185,
+            25: 50.34894,
+            26: 51.06561,
+            27: 51.801144,
+            28: 52.55488,
+            29: 53.32611,
+            30: 54.114174,
+            31: 54.918377,
+            32: 55.738026,
+            33: 56.57244,
+            34: 57.420944,
+            35: 58.282825,
+            36: 59.157417,
+            37: 60.044025,
+            38: 60.941948,
+            39: 61.850506,
+            40: 62.769,
+            41: 63.696724,
+            42: 64.63299,
+            43: 65.577095,
+            44: 66.528336,
+            45: 67.48599,
+            46: 68.44936,
+            47: 69.41773,
+            48: 70.39039,
+            49: 71.366585,
+            50: 72.34562,
+            51: 73.326744,
+            52: 74.30922,
+            53: 75.292305,
+            54: 76.27525,
+            55: 77.2573,
+            56: 78.237686,
+            57: 79.21564,
+            58: 80.19035,
+            59: 81.161095,
+            60: 82.127014,
+            61: 83.08735,
+            62: 84.041275,
+            63: 84.98794,
+            64: 85.926544,
+            65: 86.85623,
+            66: 87.77616,
+            67: 88.685455,
+            68: 89.58325,
+            69: 90.468666,
+            70: 91.3408,
+            71: 92.19876,
+            72: 93.0416,
+            73: 93.86845,
+            74: 94.678314,
+            75: 95.470276,
+            76: 96.24337,
+            77: 96.99665,
+            78: 97.729126,
+            79: 98.43981,
+            80: 99.12774,
+            81: 99.79188,
+            82: 100.431244,
+            83: 101.04483,
+            84: 101.63162,
+            85: 102.1906,
+            86: 102.72075,
+            87: 103.22105,
+            88: 103.69046,
+            89: 104.128006,
+            90: 104.532646,
+            91: 104.90337,
+            92: 105.23918,
+            93: 105.53908,
+            94: 105.80208,
+            95: 106.0272,
+            96: 106.21348,
+            97: 106.359955,
+            98: 106.4657,
+            99: 106.52982,
+            100: 106.55139,
+        }
+        float focusDistance.timeSamples = {
+            0: 107.70329,
+            1: 107.68946,
+            2: 107.64834,
+            3: 107.58047,
+            4: 107.48644,
+            5: 107.366806,
+            6: 107.222145,
+            7: 107.05304,
+            8: 106.86003,
+            9: 106.64373,
+            10: 106.4047,
+            11: 106.14354,
+            12: 105.8608,
+            13: 105.5571,
+            14: 105.23301,
+            15: 104.889114,
+            16: 104.52602,
+            17: 104.1443,
+            18: 103.744545,
+            19: 103.32737,
+            20: 102.89335,
+            21: 102.44308,
+            22: 101.97716,
+            23: 101.496185,
+            24: 101.000755,
+            25: 100.49147,
+            26: 99.96892,
+            27: 99.433716,
+            28: 98.88643,
+            29: 98.32768,
+            30: 97.75808,
+            31: 97.178185,
+            32: 96.58863,
+            33: 95.99,
+            34: 95.3829,
+            35: 94.767914,
+            36: 94.14565,
+            37: 93.516685,
+            38: 92.881645,
+            39: 92.2411,
+            40: 91.595634,
+            41: 90.945854,
+            42: 90.29235,
+            43: 89.6357,
+            44: 88.976494,
+            45: 88.31532,
+            46: 87.65273,
+            47: 86.98935,
+            48: 86.325714,
+            49: 85.66241,
+            50: 85,
+            51: 84.33906,
+            52: 83.68015,
+            53: 83.02383,
+            54: 82.370636,
+            55: 81.72113,
+            56: 81.07587,
+            57: 80.43538,
+            58: 79.80018,
+            59: 79.17082,
+            60: 78.54782,
+            61: 77.93169,
+            62: 77.32295,
+            63: 76.72211,
+            64: 76.12965,
+            65: 75.54606,
+            66: 74.97185,
+            67: 74.40746,
+            68: 73.85339,
+            69: 73.3101,
+            70: 72.77803,
+            71: 72.257614,
+            72: 71.74932,
+            73: 71.25357,
+            74: 70.77078,
+            75: 70.3014,
+            76: 69.84578,
+            77: 69.404366,
+            78: 68.97755,
+            79: 68.56569,
+            80: 68.1692,
+            81: 67.78845,
+            82: 67.42382,
+            83: 67.07566,
+            84: 66.744354,
+            85: 66.43024,
+            86: 66.13369,
+            87: 65.85507,
+            88: 65.594734,
+            89: 65.35303,
+            90: 65.13034,
+            91: 64.926994,
+            92: 64.743385,
+            93: 64.57988,
+            94: 64.43686,
+            95: 64.314705,
+            96: 64.21381,
+            97: 64.134605,
+            98: 64.077484,
+            99: 64.04288,
+            100: 64.03124,
+        }
+        float fStop.timeSamples = {
+            0: 8,
+            1: 8,
+            2: 8,
+            3: 8,
+            4: 8,
+            5: 8,
+            6: 8,
+            7: 8,
+            8: 8,
+            9: 8,
+            10: 8,
+            11: 8,
+            12: 8,
+            13: 8,
+            14: 8,
+            15: 8,
+            16: 8,
+            17: 8,
+            18: 8,
+            19: 8,
+            20: 8,
+            21: 8,
+            22: 8,
+            23: 8,
+            24: 8,
+            25: 8,
+            26: 8,
+            27: 8,
+            28: 8,
+            29: 8,
+            30: 8,
+            31: 8,
+            32: 8,
+            33: 8,
+            34: 8,
+            35: 8,
+            36: 8,
+            37: 8,
+            38: 8,
+            39: 8,
+            40: 8,
+            41: 8,
+            42: 8,
+            43: 8,
+            44: 8,
+            45: 8,
+            46: 8,
+            47: 8,
+            48: 8,
+            49: 8,
+            50: 8,
+            51: 8,
+            52: 8,
+            53: 8,
+            54: 8,
+            55: 8,
+            56: 8,
+            57: 8,
+            58: 8,
+            59: 8,
+            60: 8,
+            61: 8,
+            62: 8,
+            63: 8,
+            64: 8,
+            65: 8,
+            66: 8,
+            67: 8,
+            68: 8,
+            69: 8,
+            70: 8,
+            71: 8,
+            72: 8,
+            73: 8,
+            74: 8,
+            75: 8,
+            76: 8,
+            77: 8,
+            78: 8,
+            79: 8,
+            80: 8,
+            81: 8,
+            82: 8,
+            83: 8,
+            84: 8,
+            85: 8,
+            86: 8,
+            87: 8,
+            88: 8,
+            89: 8,
+            90: 8,
+            91: 8,
+            92: 8,
+            93: 8,
+            94: 8,
+            95: 8,
+            96: 8,
+            97: 8,
+            98: 8,
+            99: 8,
+            100: 8,
+        }
+        float horizontalAperture.timeSamples = {
+            0: 36,
+            1: 36,
+            2: 36,
+            3: 36,
+            4: 36.000004,
+            5: 36.000004,
+            6: 36.000004,
+            7: 35.999996,
+            8: 36,
+            9: 36,
+            10: 36.000004,
+            11: 35.999996,
+            12: 35.999996,
+            13: 36,
+            14: 36,
+            15: 36,
+            16: 36,
+            17: 35.999996,
+            18: 36,
+            19: 36.000004,
+            20: 36,
+            21: 36,
+            22: 36.000008,
+            23: 36.000004,
+            24: 36.000004,
+            25: 36,
+            26: 36.000004,
+            27: 36,
+            28: 36.000004,
+            29: 35.999996,
+            30: 36.000004,
+            31: 36,
+            32: 36,
+            33: 35.999996,
+            34: 36.000004,
+            35: 35.999996,
+            36: 36,
+            37: 35.999996,
+            38: 35.999996,
+            39: 36.000004,
+            40: 36.000008,
+            41: 36,
+            42: 36,
+            43: 36,
+            44: 36.000004,
+            45: 36.000004,
+            46: 36,
+            47: 35.999992,
+            48: 36,
+            49: 36.000004,
+            50: 36,
+            51: 36,
+            52: 35.999996,
+            53: 35.999996,
+            54: 36,
+            55: 36.000004,
+            56: 36,
+            57: 36.000004,
+            58: 36,
+            59: 36,
+            60: 36,
+            61: 36,
+            62: 36.000004,
+            63: 36,
+            64: 35.999996,
+            65: 35.999996,
+            66: 36,
+            67: 36,
+            68: 36,
+            69: 36.000004,
+            70: 36,
+            71: 36,
+            72: 36,
+            73: 36,
+            74: 36,
+            75: 35.999996,
+            76: 36,
+            77: 35.999996,
+            78: 36,
+            79: 36.000004,
+            80: 36,
+            81: 36.000004,
+            82: 35.999996,
+            83: 36,
+            84: 36.000004,
+            85: 36,
+            86: 35.999996,
+            87: 35.999996,
+            88: 36.000004,
+            89: 36,
+            90: 36.000004,
+            91: 36.000004,
+            92: 36.000004,
+            93: 36.000004,
+            94: 36,
+            95: 36,
+            96: 36.000004,
+            97: 35.999996,
+            98: 36,
+            99: 36.000004,
+            100: 36,
+        }
+        token projection = "perspective"
+        double shutter:close.timeSamples = {
+            0: 449.99997653067237,
+            1: 449.99997653067237,
+            2: 449.99997653067237,
+            3: 449.99997653067237,
+            4: 449.99997653067237,
+            5: 449.99997653067237,
+            6: 449.99997653067237,
+            7: 449.99997653067237,
+            8: 449.99997653067237,
+            9: 449.99997653067237,
+            10: 449.99997653067237,
+            11: 449.99997653067237,
+            12: 449.99997653067237,
+            13: 449.99997653067237,
+            14: 449.99997653067237,
+            15: 449.99997653067237,
+            16: 449.99997653067237,
+            17: 449.99997653067237,
+            18: 449.99997653067237,
+            19: 449.99997653067237,
+            20: 449.99997653067237,
+            21: 449.99997653067237,
+            22: 449.99997653067237,
+            23: 449.99997653067237,
+            24: 449.99997653067237,
+            25: 449.99997653067237,
+            26: 449.99997653067237,
+            27: 449.99997653067237,
+            28: 449.99997653067237,
+            29: 449.99997653067237,
+            30: 449.99997653067237,
+            31: 449.99997653067237,
+            32: 449.99997653067237,
+            33: 449.99997653067237,
+            34: 449.99997653067237,
+            35: 449.99997653067237,
+            36: 449.99997653067237,
+            37: 449.99997653067237,
+            38: 449.99997653067237,
+            39: 449.99997653067237,
+            40: 449.99997653067237,
+            41: 449.99997653067237,
+            42: 449.99997653067237,
+            43: 449.99997653067237,
+            44: 449.99997653067237,
+            45: 449.99997653067237,
+            46: 449.99997653067237,
+            47: 449.99997653067237,
+            48: 449.99997653067237,
+            49: 449.99997653067237,
+            50: 449.99997653067237,
+            51: 449.99997653067237,
+            52: 449.99997653067237,
+            53: 449.99997653067237,
+            54: 449.99997653067237,
+            55: 449.99997653067237,
+            56: 449.99997653067237,
+            57: 449.99997653067237,
+            58: 449.99997653067237,
+            59: 449.99997653067237,
+            60: 449.99997653067237,
+            61: 449.99997653067237,
+            62: 449.99997653067237,
+            63: 449.99997653067237,
+            64: 449.99997653067237,
+            65: 449.99997653067237,
+            66: 449.99997653067237,
+            67: 449.99997653067237,
+            68: 449.99997653067237,
+            69: 449.99997653067237,
+            70: 449.99997653067237,
+            71: 449.99997653067237,
+            72: 449.99997653067237,
+            73: 449.99997653067237,
+            74: 449.99997653067237,
+            75: 449.99997653067237,
+            76: 449.99997653067237,
+            77: 449.99997653067237,
+            78: 449.99997653067237,
+            79: 449.99997653067237,
+            80: 449.99997653067237,
+            81: 449.99997653067237,
+            82: 449.99997653067237,
+            83: 449.99997653067237,
+            84: 449.99997653067237,
+            85: 449.99997653067237,
+            86: 449.99997653067237,
+            87: 449.99997653067237,
+            88: 449.99997653067237,
+            89: 449.99997653067237,
+            90: 449.99997653067237,
+            91: 449.99997653067237,
+            92: 449.99997653067237,
+            93: 449.99997653067237,
+            94: 449.99997653067237,
+            95: 449.99997653067237,
+            96: 449.99997653067237,
+            97: 449.99997653067237,
+            98: 449.99997653067237,
+            99: 449.99997653067237,
+            100: 449.99997653067237,
+        }
+        float verticalAperture.timeSamples = {
+            0: 20.25,
+            1: 20.25,
+            2: 20.25,
+            3: 20.25,
+            4: 20.250002,
+            5: 20.250002,
+            6: 20.250002,
+            7: 20.249998,
+            8: 20.25,
+            9: 20.25,
+            10: 20.250002,
+            11: 20.249998,
+            12: 20.249998,
+            13: 20.25,
+            14: 20.25,
+            15: 20.25,
+            16: 20.25,
+            17: 20.249998,
+            18: 20.25,
+            19: 20.250002,
+            20: 20.25,
+            21: 20.25,
+            22: 20.250004,
+            23: 20.250002,
+            24: 20.250002,
+            25: 20.25,
+            26: 20.250002,
+            27: 20.25,
+            28: 20.250002,
+            29: 20.249998,
+            30: 20.250002,
+            31: 20.25,
+            32: 20.25,
+            33: 20.249998,
+            34: 20.250002,
+            35: 20.249998,
+            36: 20.25,
+            37: 20.249998,
+            38: 20.249998,
+            39: 20.250002,
+            40: 20.250004,
+            41: 20.25,
+            42: 20.25,
+            43: 20.25,
+            44: 20.250002,
+            45: 20.250002,
+            46: 20.25,
+            47: 20.249996,
+            48: 20.25,
+            49: 20.250002,
+            50: 20.25,
+            51: 20.25,
+            52: 20.249998,
+            53: 20.249998,
+            54: 20.25,
+            55: 20.250002,
+            56: 20.25,
+            57: 20.250002,
+            58: 20.25,
+            59: 20.25,
+            60: 20.25,
+            61: 20.25,
+            62: 20.250002,
+            63: 20.25,
+            64: 20.249998,
+            65: 20.249998,
+            66: 20.25,
+            67: 20.25,
+            68: 20.25,
+            69: 20.250002,
+            70: 20.25,
+            71: 20.25,
+            72: 20.25,
+            73: 20.25,
+            74: 20.25,
+            75: 20.249998,
+            76: 20.25,
+            77: 20.249998,
+            78: 20.25,
+            79: 20.250002,
+            80: 20.25,
+            81: 20.250002,
+            82: 20.249998,
+            83: 20.25,
+            84: 20.250002,
+            85: 20.25,
+            86: 20.249998,
+            87: 20.249998,
+            88: 20.250002,
+            89: 20.25,
+            90: 20.250002,
+            91: 20.250002,
+            92: 20.250002,
+            93: 20.250002,
+            94: 20.25,
+            95: 20.25,
+            96: 20.250002,
+            97: 20.249998,
+            98: 20.25,
+            99: 20.250002,
+            100: 20.25,
+        }
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (-1, 0, 0, 0), (0, -0.371391, 0.928477, 0), (0, 0.928477, 0.371391, 0), (0, 100, 40, 1) ),
+            1: ( (-1, 0, 0, 0), (0, -0.371438, 0.928458, 0), (0, 0.928458, 0.371438, 0), (0, 99.9851, 40, 1) ),
+            2: ( (-1, 0, 0, 0), (0, -0.37158, 0.928401, 0), (0, 0.928401, 0.37158, 0), (0, 99.9408, 40, 1) ),
+            3: ( (-1, 0, 0, 0), (0, -0.371815, 0.928307, 0), (0, 0.928307, 0.371815, 0), (0, 99.8677, 40, 1) ),
+            4: ( (-1, 0, 0, 0), (0, -0.37214, 0.928177, 0), (0, 0.928177, 0.37214, 0), (0, 99.7664, 40, 1) ),
+            5: ( (-1, 0, 0, 0), (0, -0.372555, 0.92801, 0), (0, 0.92801, 0.372555, 0), (0, 99.6375, 40, 1) ),
+            6: ( (-1, 0, 0, 0), (0, -0.373057, 0.927808, 0), (0, 0.927808, 0.373057, 0), (0, 99.4816, 40, 1) ),
+            7: ( (-1, 0, 0, 0), (0, -0.373647, 0.927571, 0), (0, 0.927571, 0.373647, 0), (0, 99.2993, 40, 1) ),
+            8: ( (-1, 0, 0, 0), (0, -0.374321, 0.927299, 0), (0, 0.927299, 0.374321, 0), (0, 99.0912, 40, 1) ),
+            9: ( (-1, 0, 0, 0), (0, -0.375081, 0.926992, 0), (0, 0.926992, 0.375081, 0), (0, 98.8579, 40, 1) ),
+            10: ( (-1, 0, 0, 0), (0, -0.375923, 0.926651, 0), (0, 0.926651, 0.375923, 0), (0, 98.6, 40, 1) ),
+            11: ( (-1, 0, 0, 0), (0, -0.376848, 0.926275, 0), (0, 0.926275, 0.376848, 0), (0, 98.3181, 40, 1) ),
+            12: ( (-1, 0, 0, 0), (0, -0.377855, 0.925865, 0), (0, 0.925865, 0.377855, 0), (0, 98.0128, 40, 1) ),
+            13: ( (-1, 0, 0, 0), (0, -0.378942, 0.92542, 0), (0, 0.92542, 0.378942, 0), (0, 97.6847, 40, 1) ),
+            14: ( (-1, 0, 0, 0), (0, -0.380109, 0.924942, 0), (0, 0.924942, 0.380109, 0), (0, 97.3344, 40, 1) ),
+            15: ( (-1, 0, 0, 0), (0, -0.381355, 0.924429, 0), (0, 0.924429, 0.381355, 0), (0, 96.9625, 40, 1) ),
+            16: ( (-1, 0, 0, 0), (0, -0.38268, 0.923881, 0), (0, 0.923881, 0.38268, 0), (0, 96.5696, 40, 1) ),
+            17: ( (-1, 0, 0, 0), (0, -0.384082, 0.923299, 0), (0, 0.923299, 0.384082, 0), (0, 96.1563, 40, 1) ),
+            18: ( (-1, 0, 0, 0), (0, -0.385562, 0.922682, 0), (0, 0.922682, 0.385562, 0), (0, 95.7232, 40, 1) ),
+            19: ( (-1, 0, 0, 0), (0, -0.387119, 0.92203, 0), (0, 0.92203, 0.387119, 0), (0, 95.2709, 40, 1) ),
+            20: ( (-1, 0, 0, 0), (0, -0.388752, 0.921342, 0), (0, 0.921342, 0.388752, 0), (0, 94.8, 40, 1) ),
+            21: ( (-1, 0, 0, 0), (0, -0.390461, 0.92062, 0), (0, 0.92062, 0.390461, 0), (0, 94.3111, 40, 1) ),
+            22: ( (-1, 0, 0, 0), (0, -0.392245, 0.919861, 0), (0, 0.919861, 0.392245, 0), (0, 93.8048, 40, 1) ),
+            23: ( (-1, 0, 0, 0), (0, -0.394103, 0.919066, 0), (0, 0.919066, 0.394103, 0), (0, 93.2817, 40, 1) ),
+            24: ( (-1, 0, 0, 0), (0, -0.396037, 0.918235, 0), (0, 0.918235, 0.396037, 0), (0, 92.7424, 40, 1) ),
+            25: ( (-1, 0, 0, 0), (0, -0.398044, 0.917366, 0), (0, 0.917366, 0.398044, 0), (0, 92.1875, 40, 1) ),
+            26: ( (-1, 0, 0, 0), (0, -0.400124, 0.916461, 0), (0, 0.916461, 0.400124, 0), (0, 91.6176, 40, 1) ),
+            27: ( (-1, 0, 0, 0), (0, -0.402278, 0.915518, 0), (0, 0.915518, 0.402278, 0), (0, 91.0333, 40, 1) ),
+            28: ( (-1, 0, 0, 0), (0, -0.404504, 0.914536, 0), (0, 0.914536, 0.404504, 0), (0, 90.4352, 40, 1) ),
+            29: ( (-1, 0, 0, 0), (0, -0.406803, 0.913516, 0), (0, 0.913516, 0.406803, 0), (0, 89.8239, 40, 1) ),
+            30: ( (-1, 0, 0, 0), (0, -0.409173, 0.912457, 0), (0, 0.912457, 0.409173, 0), (0, 89.2, 40, 1) ),
+            31: ( (-1, 0, 0, 0), (0, -0.411615, 0.911358, 0), (0, 0.911358, 0.411615, 0), (0, 88.5641, 40, 1) ),
+            32: ( (-1, 0, 0, 0), (0, -0.414127, 0.910219, 0), (0, 0.910219, 0.414127, 0), (0, 87.9168, 40, 1) ),
+            33: ( (-1, 0, 0, 0), (0, -0.41671, 0.909039, 0), (0, 0.909039, 0.41671, 0), (0, 87.2587, 40, 1) ),
+            34: ( (-1, 0, 0, 0), (0, -0.419362, 0.907819, 0), (0, 0.907819, 0.419362, 0), (0, 86.5904, 40, 1) ),
+            35: ( (-1, 0, 0, 0), (0, -0.422084, 0.906557, 0), (0, 0.906557, 0.422084, 0), (0, 85.9125, 40, 1) ),
+            36: ( (-1, 0, 0, 0), (0, -0.424874, 0.905253, 0), (0, 0.905253, 0.424874, 0), (0, 85.2256, 40, 1) ),
+            37: ( (-1, 0, 0, 0), (0, -0.427731, 0.903906, 0), (0, 0.903906, 0.427731, 0), (0, 84.5303, 40, 1) ),
+            38: ( (-1, 0, 0, 0), (0, -0.430656, 0.902516, 0), (0, 0.902516, 0.430656, 0), (0, 83.8272, 40, 1) ),
+            39: ( (-1, 0, 0, 0), (0, -0.433646, 0.901083, 0), (0, 0.901083, 0.433646, 0), (0, 83.1169, 40, 1) ),
+            40: ( (-1, 0, 0, 0), (0, -0.436702, 0.899606, 0), (0, 0.899606, 0.436702, 0), (0, 82.4, 40, 1) ),
+            41: ( (-1, 0, 0, 0), (0, -0.439822, 0.898085, 0), (0, 0.898085, 0.439822, 0), (0, 81.6771, 40, 1) ),
+            42: ( (-1, 0, 0, 0), (0, -0.443005, 0.896519, 0), (0, 0.896519, 0.443005, 0), (0, 80.9488, 40, 1) ),
+            43: ( (-1, 0, 0, 0), (0, -0.446251, 0.894908, 0), (0, 0.894908, 0.446251, 0), (0, 80.2157, 40, 1) ),
+            44: ( (-1, 0, 0, 0), (0, -0.449557, 0.893252, 0), (0, 0.893252, 0.449557, 0), (0, 79.4784, 40, 1) ),
+            45: ( (-1, 0, 0, 0), (0, -0.452923, 0.89155, 0), (0, 0.89155, 0.452923, 0), (0, 78.7375, 40, 1) ),
+            46: ( (-1, 0, 0, 0), (0, -0.456346, 0.889802, 0), (0, 0.889802, 0.456346, 0), (0, 77.9936, 40, 1) ),
+            47: ( (-1, 0, 0, 0), (0, -0.459826, 0.888009, 0), (0, 0.888009, 0.459826, 0), (0, 77.2473, 40, 1) ),
+            48: ( (-1, 0, 0, 0), (0, -0.463361, 0.886169, 0), (0, 0.886169, 0.463361, 0), (0, 76.4992, 40, 1) ),
+            49: ( (-1, 0, 0, 0), (0, -0.466949, 0.884284, 0), (0, 0.884284, 0.466949, 0), (0, 75.7499, 40, 1) ),
+            50: ( (-1, 0, 0, 0), (0, -0.470588, 0.882353, 0), (0, 0.882353, 0.470588, 0), (0, 75, 40, 1) ),
+            51: ( (-1, 0, 0, 0), (0, -0.474276, 0.880376, 0), (0, 0.880376, 0.474276, 0), (0, 74.2501, 40, 1) ),
+            52: ( (-1, 0, 0, 0), (0, -0.478011, 0.878354, 0), (0, 0.878354, 0.478011, 0), (0, 73.5008, 40, 1) ),
+            53: ( (-1, 0, 0, 0), (0, -0.481789, 0.876287, 0), (0, 0.876287, 0.481789, 0), (0, 72.7527, 40, 1) ),
+            54: ( (-1, 0, 0, 0), (0, -0.48561, 0.874176, 0), (0, 0.874176, 0.48561, 0), (0, 72.0064, 40, 1) ),
+            55: ( (-1, 0, 0, 0), (0, -0.489469, 0.87202, 0), (0, 0.87202, 0.489469, 0), (0, 71.2625, 40, 1) ),
+            56: ( (-1, 0, 0, 0), (0, -0.493365, 0.869822, 0), (0, 0.869822, 0.493365, 0), (0, 70.5216, 40, 1) ),
+            57: ( (-1, 0, 0, 0), (0, -0.497294, 0.867582, 0), (0, 0.867582, 0.497294, 0), (0, 69.7843, 40, 1) ),
+            58: ( (-1, 0, 0, 0), (0, -0.501252, 0.865301, 0), (0, 0.865301, 0.501252, 0), (0, 69.0512, 40, 1) ),
+            59: ( (-1, 0, 0, 0), (0, -0.505237, 0.862981, 0), (0, 0.862981, 0.505237, 0), (0, 68.3229, 40, 1) ),
+            60: ( (-1, 0, 0, 0), (0, -0.509244, 0.860622, 0), (0, 0.860622, 0.509244, 0), (0, 67.6, 40, 1) ),
+            61: ( (-1, 0, 0, 0), (0, -0.51327, 0.858227, 0), (0, 0.858227, 0.51327, 0), (0, 66.8831, 40, 1) ),
+            62: ( (-1, 0, 0, 0), (0, -0.517311, 0.855798, 0), (0, 0.855798, 0.517311, 0), (0, 66.1728, 40, 1) ),
+            63: ( (-1, 0, 0, 0), (0, -0.521362, 0.853336, 0), (0, 0.853336, 0.521362, 0), (0, 65.4697, 40, 1) ),
+            64: ( (-1, 0, 0, 0), (0, -0.52542, 0.850843, 0), (0, 0.850843, 0.52542, 0), (0, 64.7744, 40, 1) ),
+            65: ( (-1, 0, 0, 0), (0, -0.529478, 0.848323, 0), (0, 0.848323, 0.529478, 0), (0, 64.0875, 40, 1) ),
+            66: ( (-1, 0, 0, 0), (0, -0.533534, 0.845779, 0), (0, 0.845779, 0.533534, 0), (0, 63.4096, 40, 1) ),
+            67: ( (-1, 0, 0, 0), (0, -0.53758, 0.843212, 0), (0, 0.843212, 0.53758, 0), (0, 62.7413, 40, 1) ),
+            68: ( (-1, 0, 0, 0), (0, -0.541614, 0.840628, 0), (0, 0.840628, 0.541614, 0), (0, 62.0832, 40, 1) ),
+            69: ( (-1, 0, 0, 0), (0, -0.545627, 0.838028, 0), (0, 0.838028, 0.545627, 0), (0, 61.4359, 40, 1) ),
+            70: ( (-1, 0, 0, 0), (0, -0.549616, 0.835417, 0), (0, 0.835417, 0.549616, 0), (0, 60.8, 40, 1) ),
+            71: ( (-1, 0, 0, 0), (0, -0.553575, 0.832799, 0), (0, 0.832799, 0.553575, 0), (0, 60.1761, 40, 1) ),
+            72: ( (-1, 0, 0, 0), (0, -0.557497, 0.830179, 0), (0, 0.830179, 0.557497, 0), (0, 59.5648, 40, 1) ),
+            73: ( (-1, 0, 0, 0), (0, -0.561375, 0.827561, 0), (0, 0.827561, 0.561375, 0), (0, 58.9667, 40, 1) ),
+            74: ( (-1, 0, 0, 0), (0, -0.565205, 0.824951, 0), (0, 0.824951, 0.565205, 0), (0, 58.3824, 40, 1) ),
+            75: ( (-1, 0, 0, 0), (0, -0.568979, 0.822352, 0), (0, 0.822352, 0.568979, 0), (0, 57.8125, 40, 1) ),
+            76: ( (-1, 0, 0, 0), (0, -0.57269, 0.819772, 0), (0, 0.819772, 0.57269, 0), (0, 57.2576, 40, 1) ),
+            77: ( (-1, 0, 0, 0), (0, -0.576333, 0.817215, 0), (0, 0.817215, 0.576333, 0), (0, 56.7183, 40, 1) ),
+            78: ( (-1, 0, 0, 0), (0, -0.579899, 0.814688, 0), (0, 0.814688, 0.579899, 0), (0, 56.1952, 40, 1) ),
+            79: ( (-1, 0, 0, 0), (0, -0.583382, 0.812198, 0), (0, 0.812198, 0.583382, 0), (0, 55.6889, 40, 1) ),
+            80: ( (-1, 0, 0, 0), (0, -0.586775, 0.80975, 0), (0, 0.80975, 0.586775, 0), (0, 55.2, 40, 1) ),
+            81: ( (-1, 0, 0, 0), (0, -0.590071, 0.807351, 0), (0, 0.807351, 0.590071, 0), (0, 54.7291, 40, 1) ),
+            82: ( (-1, 0, 0, 0), (0, -0.593262, 0.805009, 0), (0, 0.805009, 0.593262, 0), (0, 54.2768, 40, 1) ),
+            83: ( (-1, 0, 0, 0), (0, -0.596341, 0.802731, 0), (0, 0.802731, 0.596341, 0), (0, 53.8437, 40, 1) ),
+            84: ( (-1, 0, 0, 0), (0, -0.599302, 0.800523, 0), (0, 0.800523, 0.599302, 0), (0, 53.4304, 40, 1) ),
+            85: ( (-1, 0, 0, 0), (0, -0.602135, 0.798394, 0), (0, 0.798394, 0.602135, 0), (0, 53.0375, 40, 1) ),
+            86: ( (-1, 0, 0, 0), (0, -0.604835, 0.79635, 0), (0, 0.79635, 0.604835, 0), (0, 52.6656, 40, 1) ),
+            87: ( (-1, 0, 0, 0), (0, -0.607394, 0.7944, 0), (0, 0.7944, 0.607394, 0), (0, 52.3153, 40, 1) ),
+            88: ( (-1, 0, 0, 0), (0, -0.609805, 0.792551, 0), (0, 0.792551, 0.609805, 0), (0, 51.9872, 40, 1) ),
+            89: ( (-1, 0, 0, 0), (0, -0.61206, 0.790811, 0), (0, 0.790811, 0.61206, 0), (0, 51.6819, 40, 1) ),
+            90: ( (-1, 0, 0, 0), (0, -0.614153, 0.789187, 0), (0, 0.789187, 0.614153, 0), (0, 51.4, 40, 1) ),
+            91: ( (-1, 0, 0, 0), (0, -0.616077, 0.787686, 0), (0, 0.787686, 0.616077, 0), (0, 51.1421, 40, 1) ),
+            92: ( (-1, 0, 0, 0), (0, -0.617824, 0.786317, 0), (0, 0.786317, 0.617824, 0), (0, 50.9088, 40, 1) ),
+            93: ( (-1, 0, 0, 0), (0, -0.619388, 0.785085, 0), (0, 0.785085, 0.619388, 0), (0, 50.7007, 40, 1) ),
+            94: ( (-1, 0, 0, 0), (0, -0.620763, 0.783998, 0), (0, 0.783998, 0.620763, 0), (0, 50.5184, 40, 1) ),
+            95: ( (-1, 0, 0, 0), (0, -0.621942, 0.783064, 0), (0, 0.783064, 0.621942, 0), (0, 50.3625, 40, 1) ),
+            96: ( (-1, 0, 0, 0), (0, -0.622919, 0.782286, 0), (0, 0.782286, 0.622919, 0), (0, 50.2336, 40, 1) ),
+            97: ( (-1, 0, 0, 0), (0, -0.623688, 0.781673, 0), (0, 0.781673, 0.623688, 0), (0, 50.1323, 40, 1) ),
+            98: ( (-1, 0, 0, 0), (0, -0.624244, 0.781229, 0), (0, 0.781229, 0.624244, 0), (0, 50.0592, 40, 1) ),
+            99: ( (-1, 0, 0, 0), (0, -0.624582, 0.78096, 0), (0, 0.78096, 0.624582, 0), (0, 50.0149, 40, 1) ),
+            100: ( (-1, 0, 0, 0), (0, -0.624695, 0.780869, 0), (0, 0.780869, 0.624695, 0), (0, 50, 40, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Camera "Cam2"
+    {
+        float exposure.timeSamples = {
+            0: 6,
+        }
+        float focalLength.timeSamples = {
+            0: 40.586136,
+        }
+        float focusDistance.timeSamples = {
+            0: 109.044586,
+        }
+        float fStop.timeSamples = {
+            0: 8,
+        }
+        float horizontalAperture.timeSamples = {
+            0: 36.000004,
+        }
+        token projection = "perspective"
+        double shutter:close.timeSamples = {
+            0: 449.99997653067237,
+        }
+        float verticalAperture.timeSamples = {
+            0: 20.250002,
+        }
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            1: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            2: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            3: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            4: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            5: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            6: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            7: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            8: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            9: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            10: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            11: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            12: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            13: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            14: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            15: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            16: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            17: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            18: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            19: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            20: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            21: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            22: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            23: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            24: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            25: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            26: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            27: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            28: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            29: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            30: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            31: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            32: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            33: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            34: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            35: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            36: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            37: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            38: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            39: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            40: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            41: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            42: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            43: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            44: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            45: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            46: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            47: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            48: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            49: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            50: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            51: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            52: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            53: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            54: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            55: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            56: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            57: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            58: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            59: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            60: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            61: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            62: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            63: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            64: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            65: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            66: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            67: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            68: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            69: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            70: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            71: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            72: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            73: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            74: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            75: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            76: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            77: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            78: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            79: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            80: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            81: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            82: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            83: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            84: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            85: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            86: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            87: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            88: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            89: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            90: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            91: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            92: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            93: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            94: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            95: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            96: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            97: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            98: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            99: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+            100: ( (0.304418, -0.952539, 0, 0), (0, 0, 1, 0), (-0.952539, -0.304418, 0, 0), (-106.871, -34.014, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/animated_cube_bbox.usda b/src/Tests/Integration/data/animated_cube_bbox.usda
new file mode 100644
index 0000000..368e8a4
--- /dev/null
+++ b/src/Tests/Integration/data/animated_cube_bbox.usda
@@ -0,0 +1,236 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.24.0"
+    }
+    defaultPrim = "animated_cube_bbox"
+    endTimeCode = 100
+    framesPerSecond = 30
+    metersPerUnit = 0.01
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "animated_cube_bbox"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-5, -5, 0), (5, 5, 10)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)],
+        }
+        color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.7764706)]
+        texCoord2f[] primvars:map1 (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:map1.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:map1:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.01184, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.04672, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.10368, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.18176, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.28, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.39744, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.53312, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.68608, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.85536, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.04, 1) ),
+            11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.23904, 1) ),
+            12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.45152, 1) ),
+            13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.67648, 1) ),
+            14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.91296, 1) ),
+            15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 2.16, 1) ),
+            16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 2.41664, 1) ),
+            17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 2.68192, 1) ),
+            18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 2.95488, 1) ),
+            19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 3.23456, 1) ),
+            20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 3.52, 1) ),
+            21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 3.81024, 1) ),
+            22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 4.10432, 1) ),
+            23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 4.40128, 1) ),
+            24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 4.70016, 1) ),
+            25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 5, 1) ),
+            26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 5.29984, 1) ),
+            27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 5.59872, 1) ),
+            28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 5.89568, 1) ),
+            29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 6.18976, 1) ),
+            30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 6.48, 1) ),
+            31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 6.76544, 1) ),
+            32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 7.04512, 1) ),
+            33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 7.31808, 1) ),
+            34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 7.58336, 1) ),
+            35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 7.84, 1) ),
+            36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 8.08704, 1) ),
+            37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 8.32352, 1) ),
+            38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 8.54848, 1) ),
+            39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 8.76096, 1) ),
+            40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 8.96, 1) ),
+            41: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.14464, 1) ),
+            42: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.31392, 1) ),
+            43: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.46688, 1) ),
+            44: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.60256, 1) ),
+            45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.72, 1) ),
+            46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.81824, 1) ),
+            47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.89632, 1) ),
+            48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.95328, 1) ),
+            49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 9.98816, 1) ),
+            50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 10, 1) ),
+            51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.01184, 0, 10, 1) ),
+            52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.04672, 0, 10, 1) ),
+            53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.10368, 0, 10, 1) ),
+            54: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.18176, 0, 10, 1) ),
+            55: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.28, 0, 10, 1) ),
+            56: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.39744, 0, 10, 1) ),
+            57: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.53312, 0, 10, 1) ),
+            58: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.68608, 0, 10, 1) ),
+            59: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.85536, 0, 10, 1) ),
+            60: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (1.04, 0, 10, 1) ),
+            61: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (1.23904, 0, 10, 1) ),
+            62: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (1.45152, 0, 10, 1) ),
+            63: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (1.67648, 0, 10, 1) ),
+            64: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (1.91296, 0, 10, 1) ),
+            65: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (2.16, 0, 10, 1) ),
+            66: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (2.41664, 0, 10, 1) ),
+            67: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (2.68192, 0, 10, 1) ),
+            68: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (2.95488, 0, 10, 1) ),
+            69: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (3.23456, 0, 10, 1) ),
+            70: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (3.52, 0, 10, 1) ),
+            71: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (3.81024, 0, 10, 1) ),
+            72: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (4.10432, 0, 10, 1) ),
+            73: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (4.40128, 0, 10, 1) ),
+            74: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (4.70016, 0, 10, 1) ),
+            75: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5, 0, 10, 1) ),
+            76: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5.29984, 0, 10, 1) ),
+            77: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5.59872, 0, 10, 1) ),
+            78: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5.89568, 0, 10, 1) ),
+            79: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (6.18976, 0, 10, 1) ),
+            80: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (6.48, 0, 10, 1) ),
+            81: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (6.76544, 0, 10, 1) ),
+            82: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (7.04512, 0, 10, 1) ),
+            83: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (7.31808, 0, 10, 1) ),
+            84: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (7.58336, 0, 10, 1) ),
+            85: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (7.84, 0, 10, 1) ),
+            86: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (8.08704, 0, 10, 1) ),
+            87: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (8.32352, 0, 10, 1) ),
+            88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (8.54848, 0, 10, 1) ),
+            89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (8.76096, 0, 10, 1) ),
+            90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (8.96, 0, 10, 1) ),
+            91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.14464, 0, 10, 1) ),
+            92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.31392, 0, 10, 1) ),
+            93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.46688, 0, 10, 1) ),
+            94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.60256, 0, 10, 1) ),
+            95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.72, 0, 10, 1) ),
+            96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.81824, 0, 10, 1) ),
+            97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.89632, 0, 10, 1) ),
+            98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.95328, 0, 10, 1) ),
+            99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.98816, 0, 10, 1) ),
+            100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (10, 0, 10, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/arm.usda b/src/Tests/Integration/data/arm.usda
new file mode 100644
index 0000000..19d23a7
--- /dev/null
+++ b/src/Tests/Integration/data/arm.usda
@@ -0,0 +1,122 @@
+#usda 1.0
+(
+    startTimeCode = 1
+    endTimeCode = 10
+    upAxis = "Z"
+)
+def SkelRoot "Model"(
+    prepend apiSchemas = ["SkelBindingAPI"]
+) 
+{
+    def Skeleton "Skel"(
+        prepend apiSchemas = ["SkelBindingAPI"]
+    )
+    {
+        uniform token[] joints = ["Shoulder", "Shoulder/Elbow", "Shoulder/Elbow/Hand"]
+        uniform matrix4d[] bindTransforms = [
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,0,1)),
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,2,1)),
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,4,1))
+        ]
+        uniform matrix4d[] restTransforms = [
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,0,1)),
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,2,1)),
+            ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,2,1))
+        ]
+        def SkelAnimation "Anim1" {
+            uniform token[] joints = ["Shoulder/Elbow"]
+        
+            float3[] translations = [(0,0,2)]
+            quatf[] rotations.timeSamples = {
+                1: [(1,0,0,0)],
+                10: [(0.7071, 0.7071, 0, 0)]
+            }
+            half3[] scales = [(1,1,1)]
+        }
+        
+        rel skel:animationSource = <Anim1>
+    }
+    rel skel:skeleton = </Model/Skel>
+
+    def Mesh "Arm"(
+        prepend apiSchemas = ["SkelBindingAPI"]
+    )
+    {
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [
+            2, 3, 1, 0,
+            6, 7, 5, 4,
+            8, 9, 7, 6,
+            3, 2, 9, 8,
+            10, 11, 4, 5,
+            0, 1, 11, 10,
+            7, 9, 10, 5,
+            9, 2, 0, 10,
+            3, 8, 11, 1,
+            8, 6, 4, 11
+        ]
+        point3f[] points = [
+            (0.5, -0.5, 4), (-0.5, -0.5, 4), (0.5, 0.5, 4), (-0.5, 0.5, 4),
+            (-0.5, -0.5, 0), (0.5, -0.5, 0), (-0.5, 0.5, 0), (0.5, 0.5, 0),
+            (-0.5, 0.5, 2), (0.5, 0.5, 2), (0.5, -0.5, 2), (-0.5, -0.5, 2)
+        ]
+        float3[] primvars:displayColor = [(0.5, 0.5, 0.5)] (
+            interpolation = "constant"
+        )
+        float[] primvars:displayOpacity = [1.0] (
+            interpolation = "constant"
+        )
+
+        int[] primvars:skel:jointIndices = [
+            2,2,2,2, 0,0,0,0, 1,1,1,1
+        ] (
+            interpolation = "vertex"
+            elementSize = 1
+        )
+        float[] primvars:skel:jointWeights = [
+            1,1,1,1, 1,1,1,1, 1,1,1,1
+            ] (
+            interpolation = "vertex"
+            elementSize = 1
+        )
+        matrix4d primvars:skel:geomBindTransform = ((1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,0,1))
+
+        # Baking the extents so the prim isn't clipped due to skinning.
+        float3[] extent = [(-1, -2, -1), (1, 2, 1)]
+    }
+
+    # While we can view the mesh as points (via the shading mode), this is to
+    # test if the points prim can be skinned.
+    def Points "ArmPoints"(
+        prepend apiSchemas = ["SkelBindingAPI"]
+    )
+    {
+ 
+        point3f[] points = [
+            (0.5, -0.5, 4), (-0.5, -0.5, 4), (0.5, 0.5, 4), (-0.5, 0.5, 4),
+            (-0.5, -0.5, 0), (0.5, -0.5, 0), (-0.5, 0.5, 0), (0.5, 0.5, 0),
+            (-0.5, 0.5, 2), (0.5, 0.5, 2), (0.5, -0.5, 2), (-0.5, -0.5, 2)
+        ]
+        float[] widths = [0.1] (
+            interpolation = "constant"
+        )
+        float3[] primvars:displayColor = [(0.5, 0.0, 0.0)] (
+            interpolation = "constant"
+        )
+
+        int[] primvars:skel:jointIndices = [
+            2,2,2,2, 0,0,0,0, 1,1,1,1
+        ] (
+            interpolation = "vertex"
+            elementSize = 1
+        )
+        float[] primvars:skel:jointWeights = [
+            1,1,1,1, 1,1,1,1, 1,1,1,1
+            ] (
+            interpolation = "vertex"
+            elementSize = 1
+        )
+        # translate by 2.0 units on the X-axis.
+        matrix4d primvars:skel:geomBindTransform = ((1,0,0,0),(0,1,0,0),(0,0,1,0),(2,0,0,1))
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/attribute_contol.usda b/src/Tests/Integration/data/attribute_contol.usda
new file mode 100644
index 0000000..4ce0cf1
--- /dev/null
+++ b/src/Tests/Integration/data/attribute_contol.usda
@@ -0,0 +1,59 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    endTimeCode = 3
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Cube "Cube"
+    {
+        float floatVal.timeSamples = {
+            0: 10,
+            1: 20,
+            2: 30
+        }
+
+        float2 float2Val.timeSamples = {
+            0: (1,2),
+            1: (10,11),
+            2: (20,22),
+        }
+        
+        float3 float3Val.timeSamples = {
+            0: (11,10,10),
+            1: (22,20,10),
+            2: (33,30,10)
+        }
+        
+        float4 float4Val.timeSamples = {
+            0: (11,10,10,5),
+            1: (22,20,10,10),
+            2: (33,30,10,15)
+        }
+
+        color3f color3Val.timeSamples = {
+            0: (0.5,0,0),
+            1: (0,0.5,0),
+            2: (0,0,0.5)
+        }
+        
+        color4f color4Val.timeSamples = {
+            0: (0,1,0,0.25),
+            1: (1,0,0,0.5),
+            2: (0,0,1,0.75)
+        }
+        
+        int intVal.timeSamples = {
+            0: 77,
+            1: 88,
+            2: 99
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/box_3_subsets_materials.usda b/src/Tests/Integration/data/box_3_subsets_materials.usda
new file mode 100644
index 0000000..74b9a43
--- /dev/null
+++ b/src/Tests/Integration/data/box_3_subsets_materials.usda
@@ -0,0 +1,176 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.9.0"
+    }
+    defaultPrim = "box_3_subsets_materials"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "box_3_subsets_materials"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5.6789103, -3.497296, 0), (5.6789103, 3.497296, 6.9964385)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5.6789103, -3.497296, 0), (5.6789103, -3.497296, 0), (-5.6789103, 3.497296, 0), (5.6789103, 3.497296, 0), (-5.6789103, -3.497296, 6.9964385), (5.6789103, -3.497296, 6.9964385), (-5.6789103, 3.497296, 6.9964385), (5.6789103, 3.497296, 6.9964385)]
+        color3f[] primvars:displayColor = [(0.5529412, 0.02745098, 0.22745098)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-1.57495, -0.85502, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__43>
+        }
+
+        def GeomSubset "_2_Material__45" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__45>
+        }
+
+        def GeomSubset "_3_Material__44" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__44>
+        }
+
+        def GeomSubset "_4_Material__43" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__43>
+        }
+
+        def GeomSubset "_5_Material__45" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__45>
+        }
+
+        def GeomSubset "_6_Material__44" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+            rel material:binding = </box_3_subsets_materials/Materials/Material__44>
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__43"
+        {
+            token outputs:surface.connect = </box_3_subsets_materials/Materials/Material__43/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__45"
+        {
+            token outputs:surface.connect = </box_3_subsets_materials/Materials/Material__45/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__44"
+        {
+            token outputs:surface.connect = </box_3_subsets_materials/Materials/Material__44/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/box_6_subsets_materials.usda b/src/Tests/Integration/data/box_6_subsets_materials.usda
new file mode 100644
index 0000000..963bda8
--- /dev/null
+++ b/src/Tests/Integration/data/box_6_subsets_materials.usda
@@ -0,0 +1,233 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.9.0"
+    }
+    defaultPrim = "box_6_subsets_materials"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "box_6_subsets_materials"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5.6789103, -3.497296, 0), (5.6789103, 3.497296, 6.9964385)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5.6789103, -3.497296, 0), (5.6789103, -3.497296, 0), (-5.6789103, 3.497296, 0), (5.6789103, 3.497296, 0), (-5.6789103, -3.497296, 6.9964385), (5.6789103, -3.497296, 6.9964385), (-5.6789103, 3.497296, 6.9964385), (5.6789103, 3.497296, 6.9964385)]
+        color3f[] primvars:displayColor = [(0.5529412, 0.02745098, 0.22745098)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-1.57495, -0.85502, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__43>
+        }
+
+        def GeomSubset "_2_Material__45" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__45>
+        }
+
+        def GeomSubset "_3_Material__44" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__44>
+        }
+
+        def GeomSubset "_4_Material__46" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__46>
+        }
+
+        def GeomSubset "_5_Material__47" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__47>
+        }
+
+        def GeomSubset "_6_Material__48" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+            rel material:binding = </box_6_subsets_materials/Materials/Material__48>
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__43"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__43/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__45"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__45/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__44"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__44/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__46"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__46/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__47"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__47/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__48"
+        {
+            token outputs:surface.connect = </box_6_subsets_materials/Materials/Material__48/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/box_no_uvs.usda b/src/Tests/Integration/data/box_no_uvs.usda
new file mode 100644
index 0000000..43cd351
--- /dev/null
+++ b/src/Tests/Integration/data/box_no_uvs.usda
@@ -0,0 +1,26 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "box_no_uvs"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "box_no_uvs"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.56078434, 0.88235295, 0.34117648)]
+
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-3.25143, -2.0297, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/box_sample.usda b/src/Tests/Integration/data/box_sample.usda
new file mode 100644
index 0000000..560a291
--- /dev/null
+++ b/src/Tests/Integration/data/box_sample.usda
@@ -0,0 +1,161 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "box_sample"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "box_sample"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-10.385675, -13.261775, 0), (10.385675, 13.261775, 13.38604)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </box_sample/Materials/Material__25>
+        point3f[] points = [(-10.385675, -13.261775, 0), (10.385675, -13.261775, 0), (-10.385675, 13.261775, 0), (10.385675, 13.261775, 0), (-10.385675, -13.261775, 13.38604), (10.385675, -13.261775, 13.38604), (-10.385675, 13.261775, 13.38604), (10.385675, 13.261775, 13.38604)]
+        color3f[] primvars:displayColor = [(0.6, 0.89411765, 0.8392157)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-12.414, -4.39297, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </box_sample/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </box_sample/Materials/Map__1.outputs:rgb>
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </box_sample/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </box_sample/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </box_sample/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/camera_animated.usda b/src/Tests/Integration/data/camera_animated.usda
new file mode 100644
index 0000000..9ee1d99
--- /dev/null
+++ b/src/Tests/Integration/data/camera_animated.usda
@@ -0,0 +1,51 @@
+#usda 1.0
+(
+    endTimeCode = 10
+    framesPerSecond = 30
+    metersPerUnit = 0.001
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Camera "Camera001"
+{
+	float2 clippingRange.timeSamples = {
+		0: (200, 1000),
+		10: (400, 800),
+	}
+	float exposure.timeSamples = {
+		0: 6,
+		10: 12,
+	}
+	float focalLength.timeSamples = {
+		0: 40.322582,
+		10: 45.82485,
+	}
+	float focusDistance.timeSamples = {
+		0: 5000,
+		10: 2500,
+	}
+	float fStop.timeSamples = {
+		0: 8,
+		10: 16,
+	}
+	float horizontalAperture.timeSamples = {
+		0: 35.999996,
+		10: 34.999996,
+	}
+	token projection = "perspective"
+	double shutter:close.timeSamples = {
+		0: 449.99997653067237,
+		10: 449.9999832361945,
+	}
+	double shutter:open.timeSamples = {
+		0: 0,
+		10: 89.9999966472389,
+	}
+	float verticalAperture.timeSamples = {
+		0: 20.249998,
+		10: 19.687498,
+	}
+}
+
diff --git a/src/Tests/Integration/data/camera_animated_source.max b/src/Tests/Integration/data/camera_animated_source.max
new file mode 100644
index 0000000..694e854
--- /dev/null
+++ b/src/Tests/Integration/data/camera_animated_source.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:361c20c271644f9c6dc095394c2eadbe23fa8815fe963fd7f992b34f4169749d
+size 704512
diff --git a/src/Tests/Integration/data/cone_native.usda b/src/Tests/Integration/data/cone_native.usda
new file mode 100644
index 0000000..789b0c6
--- /dev/null
+++ b/src/Tests/Integration/data/cone_native.usda
@@ -0,0 +1,9 @@
+#usda 1.0
+(
+    upAxis = "Z"
+	metersPerUnit = 0.001
+)
+def Cone "cone" {
+    double height = 8.0
+    double radius = 4.0
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/consolidation_1_box.usda b/src/Tests/Integration/data/consolidation_1_box.usda
new file mode 100644
index 0000000..54477c2
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_1_box.usda
@@ -0,0 +1,110 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_1_box"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_1_box"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-12.770379, -8.004246, 0), (12.770379, 8.004246, 11.122518)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-12.770379, -8.004246, 0), (12.770379, -8.004246, 0), (-12.770379, 8.004246, 0), (12.770379, 8.004246, 0), (-12.770379, -8.004246, 11.122518), (12.770379, -8.004246, 11.122518), (-12.770379, 8.004246, 11.122518), (12.770379, 8.004246, 11.122518)]
+        color3f[] primvars:displayColor = [(0.34509805, 0.5647059, 0.88235295)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-5.60359, -3.673, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_2_boxes.usda b/src/Tests/Integration/data/consolidation_2_boxes.usda
new file mode 100644
index 0000000..b4d11eb
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_2_boxes.usda
@@ -0,0 +1,268 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_2_boxes"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_2_boxes"
+{
+    def Xform "consolidation_2_boxes"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-6.057826, -5.9991794, 0), (6.057826, 5.9991794, 7.2729344)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            rel material:binding = </consolidation_2_boxes/Materials/Material__25>
+            point3f[] points = [(-6.057826, -5.9991794, 0), (6.057826, -5.9991794, 0), (-6.057826, 5.9991794, 0), (6.057826, 5.9991794, 0), (-6.057826, -5.9991794, 7.2729344), (6.057826, -5.9991794, 7.2729344), (-6.057826, 5.9991794, 7.2729344), (6.057826, 5.9991794, 7.2729344)]
+            color3f[] primvars:displayColor = [(0.8392157, 0.89411765, 0.6)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-8.1127, 1.24951, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Mesh "Box002"
+        {
+            float3[] extent = [(-6.057826, -5.9991794, 0), (6.057826, 5.9991794, 7.2729344)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            rel material:binding = </consolidation_2_boxes/Materials/Material__25>
+            point3f[] points = [(-6.057826, -5.9991794, 0), (6.057826, -5.9991794, 0), (-6.057826, 5.9991794, 0), (6.057826, 5.9991794, 0), (-6.057826, -5.9991794, 7.2729344), (6.057826, -5.9991794, 7.2729344), (-6.057826, 5.9991794, 7.2729344), (6.057826, 5.9991794, 7.2729344)]
+            color3f[] primvars:displayColor = [(0.8392157, 0.89411765, 0.6)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (0.701358, 0, -0.71281, 0), (-0.375654, 0.849863, -0.369619, 0), (0.60579, 0.527004, 0.596058, 0), (7.4267, 1.24951, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </consolidation_2_boxes/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </consolidation_2_boxes/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </consolidation_2_boxes/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </consolidation_2_boxes/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </consolidation_2_boxes/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }		
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_2_boxes_animated.usda b/src/Tests/Integration/data/consolidation_2_boxes_animated.usda
new file mode 100644
index 0000000..fd7be8c
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_2_boxes_animated.usda
@@ -0,0 +1,2079 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_2_boxes_animated"
+    endTimeCode = 100
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "consolidation_2_boxes_animated"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.270042)],
+            1: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.274589)],
+            2: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.288106)],
+            3: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.31041)],
+            4: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.341319)],
+            5: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.380649)],
+            6: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.428217)],
+            7: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.483841)],
+            8: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.547337)],
+            9: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.618521)],
+            10: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.697211)],
+            11: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.783225)],
+            12: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.876379)],
+            13: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 8.976489)],
+            14: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.083373)],
+            15: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.196847)],
+            16: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.316729)],
+            17: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.442836)],
+            18: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.574984)],
+            19: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.71299)],
+            20: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 9.856671)],
+            21: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.005845)],
+            22: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.160327)],
+            23: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.319936)],
+            24: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.4844885)],
+            25: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.653799)],
+            26: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 10.827688)],
+            27: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.00597)],
+            28: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.188463)],
+            29: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.374983)],
+            30: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.565348)],
+            31: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.759375)],
+            32: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 11.95688)],
+            33: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 12.15768)],
+            34: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 12.361592)],
+            35: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 12.568433)],
+            36: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 12.778021)],
+            37: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 12.990171)],
+            38: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 13.204702)],
+            39: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 13.421429)],
+            40: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 13.640171)],
+            41: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 13.860743)],
+            42: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 14.082962)],
+            43: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 14.306646)],
+            44: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 14.531612)],
+            45: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 14.757676)],
+            46: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 14.984655)],
+            47: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 15.212367)],
+            48: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 15.440628)],
+            49: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 15.669255)],
+            50: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 15.898066)],
+            51: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 16.126875)],
+            52: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 16.355503)],
+            53: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 16.583765)],
+            54: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 16.811476)],
+            55: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 17.038456)],
+            56: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 17.264519)],
+            57: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 17.489485)],
+            58: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 17.71317)],
+            59: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 17.935389)],
+            60: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 18.15596)],
+            61: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 18.374702)],
+            62: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 18.591429)],
+            63: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 18.80596)],
+            64: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 19.01811)],
+            65: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 19.2277)],
+            66: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 19.43454)],
+            67: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 19.638453)],
+            68: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 19.839252)],
+            69: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.036757)],
+            70: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.230782)],
+            71: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.421146)],
+            72: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.607668)],
+            73: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.790161)],
+            74: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 20.968443)],
+            75: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.142332)],
+            76: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.311644)],
+            77: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.476194)],
+            78: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.635803)],
+            79: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.790287)],
+            80: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 21.93946)],
+            81: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.083141)],
+            82: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.221148)],
+            83: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.353294)],
+            84: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.479403)],
+            85: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.599285)],
+            86: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.712759)],
+            87: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.819643)],
+            88: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 22.919752)],
+            89: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.012905)],
+            90: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.098919)],
+            91: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.17761)],
+            92: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.248795)],
+            93: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.31229)],
+            94: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.367914)],
+            95: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.415482)],
+            96: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.454813)],
+            97: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.485722)],
+            98: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.508024)],
+            99: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.521542)],
+            100: [(-12.234371, -8.071238, 0), (12.234371, 8.071238, 23.526089)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+            1: [4, 4, 4, 4, 4, 4],
+            2: [4, 4, 4, 4, 4, 4],
+            3: [4, 4, 4, 4, 4, 4],
+            4: [4, 4, 4, 4, 4, 4],
+            5: [4, 4, 4, 4, 4, 4],
+            6: [4, 4, 4, 4, 4, 4],
+            7: [4, 4, 4, 4, 4, 4],
+            8: [4, 4, 4, 4, 4, 4],
+            9: [4, 4, 4, 4, 4, 4],
+            10: [4, 4, 4, 4, 4, 4],
+            11: [4, 4, 4, 4, 4, 4],
+            12: [4, 4, 4, 4, 4, 4],
+            13: [4, 4, 4, 4, 4, 4],
+            14: [4, 4, 4, 4, 4, 4],
+            15: [4, 4, 4, 4, 4, 4],
+            16: [4, 4, 4, 4, 4, 4],
+            17: [4, 4, 4, 4, 4, 4],
+            18: [4, 4, 4, 4, 4, 4],
+            19: [4, 4, 4, 4, 4, 4],
+            20: [4, 4, 4, 4, 4, 4],
+            21: [4, 4, 4, 4, 4, 4],
+            22: [4, 4, 4, 4, 4, 4],
+            23: [4, 4, 4, 4, 4, 4],
+            24: [4, 4, 4, 4, 4, 4],
+            25: [4, 4, 4, 4, 4, 4],
+            26: [4, 4, 4, 4, 4, 4],
+            27: [4, 4, 4, 4, 4, 4],
+            28: [4, 4, 4, 4, 4, 4],
+            29: [4, 4, 4, 4, 4, 4],
+            30: [4, 4, 4, 4, 4, 4],
+            31: [4, 4, 4, 4, 4, 4],
+            32: [4, 4, 4, 4, 4, 4],
+            33: [4, 4, 4, 4, 4, 4],
+            34: [4, 4, 4, 4, 4, 4],
+            35: [4, 4, 4, 4, 4, 4],
+            36: [4, 4, 4, 4, 4, 4],
+            37: [4, 4, 4, 4, 4, 4],
+            38: [4, 4, 4, 4, 4, 4],
+            39: [4, 4, 4, 4, 4, 4],
+            40: [4, 4, 4, 4, 4, 4],
+            41: [4, 4, 4, 4, 4, 4],
+            42: [4, 4, 4, 4, 4, 4],
+            43: [4, 4, 4, 4, 4, 4],
+            44: [4, 4, 4, 4, 4, 4],
+            45: [4, 4, 4, 4, 4, 4],
+            46: [4, 4, 4, 4, 4, 4],
+            47: [4, 4, 4, 4, 4, 4],
+            48: [4, 4, 4, 4, 4, 4],
+            49: [4, 4, 4, 4, 4, 4],
+            50: [4, 4, 4, 4, 4, 4],
+            51: [4, 4, 4, 4, 4, 4],
+            52: [4, 4, 4, 4, 4, 4],
+            53: [4, 4, 4, 4, 4, 4],
+            54: [4, 4, 4, 4, 4, 4],
+            55: [4, 4, 4, 4, 4, 4],
+            56: [4, 4, 4, 4, 4, 4],
+            57: [4, 4, 4, 4, 4, 4],
+            58: [4, 4, 4, 4, 4, 4],
+            59: [4, 4, 4, 4, 4, 4],
+            60: [4, 4, 4, 4, 4, 4],
+            61: [4, 4, 4, 4, 4, 4],
+            62: [4, 4, 4, 4, 4, 4],
+            63: [4, 4, 4, 4, 4, 4],
+            64: [4, 4, 4, 4, 4, 4],
+            65: [4, 4, 4, 4, 4, 4],
+            66: [4, 4, 4, 4, 4, 4],
+            67: [4, 4, 4, 4, 4, 4],
+            68: [4, 4, 4, 4, 4, 4],
+            69: [4, 4, 4, 4, 4, 4],
+            70: [4, 4, 4, 4, 4, 4],
+            71: [4, 4, 4, 4, 4, 4],
+            72: [4, 4, 4, 4, 4, 4],
+            73: [4, 4, 4, 4, 4, 4],
+            74: [4, 4, 4, 4, 4, 4],
+            75: [4, 4, 4, 4, 4, 4],
+            76: [4, 4, 4, 4, 4, 4],
+            77: [4, 4, 4, 4, 4, 4],
+            78: [4, 4, 4, 4, 4, 4],
+            79: [4, 4, 4, 4, 4, 4],
+            80: [4, 4, 4, 4, 4, 4],
+            81: [4, 4, 4, 4, 4, 4],
+            82: [4, 4, 4, 4, 4, 4],
+            83: [4, 4, 4, 4, 4, 4],
+            84: [4, 4, 4, 4, 4, 4],
+            85: [4, 4, 4, 4, 4, 4],
+            86: [4, 4, 4, 4, 4, 4],
+            87: [4, 4, 4, 4, 4, 4],
+            88: [4, 4, 4, 4, 4, 4],
+            89: [4, 4, 4, 4, 4, 4],
+            90: [4, 4, 4, 4, 4, 4],
+            91: [4, 4, 4, 4, 4, 4],
+            92: [4, 4, 4, 4, 4, 4],
+            93: [4, 4, 4, 4, 4, 4],
+            94: [4, 4, 4, 4, 4, 4],
+            95: [4, 4, 4, 4, 4, 4],
+            96: [4, 4, 4, 4, 4, 4],
+            97: [4, 4, 4, 4, 4, 4],
+            98: [4, 4, 4, 4, 4, 4],
+            99: [4, 4, 4, 4, 4, 4],
+            100: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            1: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            2: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
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+            100: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        rel material:binding = </consolidation_2_boxes_animated/Materials/Material__25>
+        point3f[] points.timeSamples = {
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+        }
+        color3f[] primvars:displayColor = [(0.89411765, 0.72156864, 0.6)]
+        texCoord2f[] primvars:map1 (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:map1.timeSamples = {
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+            95: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            96: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            97: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            98: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            99: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            100: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:map1:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            1: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            2: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            3: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            4: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            5: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            6: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            7: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            8: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            9: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            10: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            11: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            12: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            13: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            14: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            15: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            16: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            17: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            18: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            19: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            20: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            21: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            22: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            23: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            24: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            25: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            26: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            27: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            28: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            29: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            30: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            31: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            32: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            33: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            34: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            35: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            36: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            37: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            38: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            39: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            40: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            41: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            42: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            43: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            44: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            45: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            46: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            47: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            48: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            49: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            50: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            51: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            52: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            53: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            54: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            55: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            56: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            57: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            58: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            59: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            60: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            61: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            62: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            63: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            64: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            65: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            66: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            67: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            68: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            69: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            70: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            71: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            72: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            73: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            74: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            75: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            76: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            77: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            78: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            79: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            80: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            81: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            82: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            83: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            84: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            85: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            86: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            87: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            88: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            89: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            90: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            91: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            92: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            93: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            94: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            95: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            96: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            97: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            98: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            99: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            100: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            1: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            2: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            3: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            4: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            5: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            6: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            7: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            8: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            9: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            10: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            11: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            12: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            13: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            14: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            15: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            16: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            17: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            18: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            19: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            20: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            21: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            22: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            23: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            24: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            25: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            26: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            27: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            28: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            29: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            30: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            31: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            32: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            33: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            34: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            35: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            36: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            37: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            38: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            39: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            40: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            41: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            42: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            43: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            44: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            45: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            46: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            47: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            48: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            49: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            50: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            51: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
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+            53: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            54: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            55: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
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+            57: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            58: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            59: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            60: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            61: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            62: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            63: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            64: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            65: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            66: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            67: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            68: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            69: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            70: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            71: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            72: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            73: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            74: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            75: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            76: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            77: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            78: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            79: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            80: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            81: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            82: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            83: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            84: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            85: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            86: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            87: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            88: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            89: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            90: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            91: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            92: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            93: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            94: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            95: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            96: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            97: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            98: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            99: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            100: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            1: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            2: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            3: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            4: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            5: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            6: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            7: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            8: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            9: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            10: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            11: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            12: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            13: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            14: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            15: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            16: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            17: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            18: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            19: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            20: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            21: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            22: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            23: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            24: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            25: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            26: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            27: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            28: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            29: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            30: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            31: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            32: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            33: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            34: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            35: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            36: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            37: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            38: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            39: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            40: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            41: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            42: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            43: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            44: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            45: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            46: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            47: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            48: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            49: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            50: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            51: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            52: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            53: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            54: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            55: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            56: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            57: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            58: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            59: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            60: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            61: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            62: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            63: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            64: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            65: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            66: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            67: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            68: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            69: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            70: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            71: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            72: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            73: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            74: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            75: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            76: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            77: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            78: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            79: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            80: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            81: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            82: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            83: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            84: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            85: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            86: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            87: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            88: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            89: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            90: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            91: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            92: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            93: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            94: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            95: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            96: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            97: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            98: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            99: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            100: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            41: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            42: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            43: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            44: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            54: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            55: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            56: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            57: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            58: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            59: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            60: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            61: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            62: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            63: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            64: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            65: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            66: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            67: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            68: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            69: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            70: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            71: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            72: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            73: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            74: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            75: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            76: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            77: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            78: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            79: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            80: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            81: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            82: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            83: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            84: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            85: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            86: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            87: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+            100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-4.86577, -3.75138, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-8.684086, -11.404554, 0), (8.684086, 11.404554, 5.472828)],
+            1: [(-8.684086, -11.409971, 0), (8.684086, 11.404554, 5.472828)],
+            2: [(-8.684086, -11.426078, 0), (8.684086, 11.404554, 5.472828)],
+            3: [(-8.684086, -11.452654, 0), (8.684086, 11.404554, 5.472828)],
+            4: [(-8.684086, -11.489483, 0), (8.684086, 11.404554, 5.472828)],
+            5: [(-8.684086, -11.536346, 0), (8.684086, 11.404554, 5.472828)],
+            6: [(-8.684086, -11.593026, 0), (8.684086, 11.404554, 5.472828)],
+            7: [(-8.684086, -11.659304, 0), (8.684086, 11.404554, 5.472828)],
+            8: [(-8.684086, -11.7349615, 0), (8.684086, 11.404554, 5.472828)],
+            9: [(-8.684086, -11.819781, 0), (8.684086, 11.404554, 5.472828)],
+            10: [(-8.684086, -11.913545, 0), (8.684086, 11.404554, 5.472828)],
+            11: [(-8.684086, -12.016033, 0), (8.684086, 11.404554, 5.472828)],
+            12: [(-8.684086, -12.127029, 0), (8.684086, 11.404554, 5.472828)],
+            13: [(-8.684086, -12.246315, 0), (8.684086, 11.404554, 5.472828)],
+            14: [(-8.684086, -12.3736725, 0), (8.684086, 11.404554, 5.472828)],
+            15: [(-8.684086, -12.508882, 0), (8.684086, 11.404554, 5.472828)],
+            16: [(-8.684086, -12.651726, 0), (8.684086, 11.404554, 5.472828)],
+            17: [(-8.684086, -12.801988, 0), (8.684086, 11.404554, 5.472828)],
+            18: [(-8.684086, -12.959447, 0), (8.684086, 11.404554, 5.472828)],
+            19: [(-8.684086, -13.123887, 0), (8.684086, 11.404554, 5.472828)],
+            20: [(-8.684086, -13.29509, 0), (8.684086, 11.404554, 5.472828)],
+            21: [(-8.684086, -13.4728365, 0), (8.684086, 11.404554, 5.472828)],
+            22: [(-8.684086, -13.65691, 0), (8.684086, 11.404554, 5.472828)],
+            23: [(-8.684086, -13.84709, 0), (8.684086, 11.404554, 5.472828)],
+            24: [(-8.684086, -14.04316, 0), (8.684086, 11.404554, 5.472828)],
+            25: [(-8.684086, -14.244903, 0), (8.684086, 11.404554, 5.472828)],
+            26: [(-8.684086, -14.452098, 0), (8.684086, 11.404554, 5.472828)],
+            27: [(-8.684086, -14.664529, 0), (8.684086, 11.404554, 5.472828)],
+            28: [(-8.684086, -14.881977, 0), (8.684086, 11.404554, 5.472828)],
+            29: [(-8.684086, -15.104224, 0), (8.684086, 11.404554, 5.472828)],
+            30: [(-8.684086, -15.331052, 0), (8.684086, 11.404554, 5.472828)],
+            31: [(-8.684086, -15.5622425, 0), (8.684086, 11.404554, 5.472828)],
+            32: [(-8.684086, -15.797578, 0), (8.684086, 11.404554, 5.472828)],
+            33: [(-8.684086, -16.03684, 0), (8.684086, 11.404554, 5.472828)],
+            34: [(-8.684086, -16.27981, 0), (8.684086, 11.404554, 5.472828)],
+            35: [(-8.684086, -16.52627, 0), (8.684086, 11.404554, 5.472828)],
+            36: [(-8.684086, -16.776003, 0), (8.684086, 11.404554, 5.472828)],
+            37: [(-8.684086, -17.02879, 0), (8.684086, 11.404554, 5.472828)],
+            38: [(-8.684086, -17.284412, 0), (8.684086, 11.404554, 5.472828)],
+            39: [(-8.684086, -17.542652, 0), (8.684086, 11.404554, 5.472828)],
+            40: [(-8.684086, -17.803291, 0), (8.684086, 11.404554, 5.472828)],
+            41: [(-8.684086, -18.066113, 0), (8.684086, 11.404554, 5.472828)],
+            42: [(-8.684086, -18.330896, 0), (8.684086, 11.404554, 5.472828)],
+            43: [(-8.684086, -18.597425, 0), (8.684086, 11.404554, 5.472828)],
+            44: [(-8.684086, -18.865482, 0), (8.684086, 11.404554, 5.472828)],
+            45: [(-8.684086, -19.134846, 0), (8.684086, 11.404554, 5.472828)],
+            46: [(-8.684086, -19.405302, 0), (8.684086, 11.404554, 5.472828)],
+            47: [(-8.684086, -19.67663, 0), (8.684086, 11.404554, 5.472828)],
+            48: [(-8.684086, -19.948614, 0), (8.684086, 11.404554, 5.472828)],
+            49: [(-8.684086, -20.221033, 0), (8.684086, 11.404554, 5.472828)],
+            50: [(-8.684086, -20.49367, 0), (8.684086, 11.404554, 5.472828)],
+            51: [(-8.684086, -20.766306, 0), (8.684086, 11.404554, 5.472828)],
+            52: [(-8.684086, -21.038725, 0), (8.684086, 11.404554, 5.472828)],
+            53: [(-8.684086, -21.310709, 0), (8.684086, 11.404554, 5.472828)],
+            54: [(-8.684086, -21.582037, 0), (8.684086, 11.404554, 5.472828)],
+            55: [(-8.684086, -21.852493, 0), (8.684086, 11.404554, 5.472828)],
+            56: [(-8.684086, -22.121857, 0), (8.684086, 11.404554, 5.472828)],
+            57: [(-8.684086, -22.389914, 0), (8.684086, 11.404554, 5.472828)],
+            58: [(-8.684086, -22.656443, 0), (8.684086, 11.404554, 5.472828)],
+            59: [(-8.684086, -22.921227, 0), (8.684086, 11.404554, 5.472828)],
+            60: [(-8.684086, -23.184048, 0), (8.684086, 11.404554, 5.472828)],
+            61: [(-8.684086, -23.444689, 0), (8.684086, 11.404554, 5.472828)],
+            62: [(-8.684086, -23.702927, 0), (8.684086, 11.404554, 5.472828)],
+            63: [(-8.684086, -23.95855, 0), (8.684086, 11.404554, 5.472828)],
+            64: [(-8.684086, -24.211336, 0), (8.684086, 11.404554, 5.472828)],
+            65: [(-8.684086, -24.46107, 0), (8.684086, 11.404554, 5.472828)],
+            66: [(-8.684086, -24.70753, 0), (8.684086, 11.404554, 5.472828)],
+            67: [(-8.684086, -24.950499, 0), (8.684086, 11.404554, 5.472828)],
+            68: [(-8.684086, -25.18976, 0), (8.684086, 11.404554, 5.472828)],
+            69: [(-8.684086, -25.425097, 0), (8.684086, 11.404554, 5.472828)],
+            70: [(-8.684086, -25.656286, 0), (8.684086, 11.404554, 5.472828)],
+            71: [(-8.684086, -25.883114, 0), (8.684086, 11.404554, 5.472828)],
+            72: [(-8.684086, -26.105362, 0), (8.684086, 11.404554, 5.472828)],
+            73: [(-8.684086, -26.322811, 0), (8.684086, 11.404554, 5.472828)],
+            74: [(-8.684086, -26.535242, 0), (8.684086, 11.404554, 5.472828)],
+            75: [(-8.684086, -26.742435, 0), (8.684086, 11.404554, 5.472828)],
+            76: [(-8.684086, -26.94418, 0), (8.684086, 11.404554, 5.472828)],
+            77: [(-8.684086, -27.14025, 0), (8.684086, 11.404554, 5.472828)],
+            78: [(-8.684086, -27.33043, 0), (8.684086, 11.404554, 5.472828)],
+            79: [(-8.684086, -27.514502, 0), (8.684086, 11.404554, 5.472828)],
+            80: [(-8.684086, -27.692251, 0), (8.684086, 11.404554, 5.472828)],
+            81: [(-8.684086, -27.863451, 0), (8.684086, 11.404554, 5.472828)],
+            82: [(-8.684086, -28.027891, 0), (8.684086, 11.404554, 5.472828)],
+            83: [(-8.684086, -28.18535, 0), (8.684086, 11.404554, 5.472828)],
+            84: [(-8.684086, -28.335613, 0), (8.684086, 11.404554, 5.472828)],
+            85: [(-8.684086, -28.478458, 0), (8.684086, 11.404554, 5.472828)],
+            86: [(-8.684086, -28.613667, 0), (8.684086, 11.404554, 5.472828)],
+            87: [(-8.684086, -28.741024, 0), (8.684086, 11.404554, 5.472828)],
+            88: [(-8.684086, -28.86031, 0), (8.684086, 11.404554, 5.472828)],
+            89: [(-8.684086, -28.971306, 0), (8.684086, 11.404554, 5.472828)],
+            90: [(-8.684086, -29.073793, 0), (8.684086, 11.404554, 5.472828)],
+            91: [(-8.684086, -29.167557, 0), (8.684086, 11.404554, 5.472828)],
+            92: [(-8.684086, -29.252378, 0), (8.684086, 11.404554, 5.472828)],
+            93: [(-8.684086, -29.328035, 0), (8.684086, 11.404554, 5.472828)],
+            94: [(-8.684086, -29.394314, 0), (8.684086, 11.404554, 5.472828)],
+            95: [(-8.684086, -29.450993, 0), (8.684086, 11.404554, 5.472828)],
+            96: [(-8.684086, -29.497858, 0), (8.684086, 11.404554, 5.472828)],
+            97: [(-8.684086, -29.534685, 0), (8.684086, 11.404554, 5.472828)],
+            98: [(-8.684086, -29.56126, 0), (8.684086, 11.404554, 5.472828)],
+            99: [(-8.684086, -29.577368, 0), (8.684086, 11.404554, 5.472828)],
+            100: [(-8.684086, -29.582785, 0), (8.684086, 11.404554, 5.472828)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+            1: [4, 4, 4, 4, 4, 4],
+            2: [4, 4, 4, 4, 4, 4],
+            3: [4, 4, 4, 4, 4, 4],
+            4: [4, 4, 4, 4, 4, 4],
+            5: [4, 4, 4, 4, 4, 4],
+            6: [4, 4, 4, 4, 4, 4],
+            7: [4, 4, 4, 4, 4, 4],
+            8: [4, 4, 4, 4, 4, 4],
+            9: [4, 4, 4, 4, 4, 4],
+            10: [4, 4, 4, 4, 4, 4],
+            11: [4, 4, 4, 4, 4, 4],
+            12: [4, 4, 4, 4, 4, 4],
+            13: [4, 4, 4, 4, 4, 4],
+            14: [4, 4, 4, 4, 4, 4],
+            15: [4, 4, 4, 4, 4, 4],
+            16: [4, 4, 4, 4, 4, 4],
+            17: [4, 4, 4, 4, 4, 4],
+            18: [4, 4, 4, 4, 4, 4],
+            19: [4, 4, 4, 4, 4, 4],
+            20: [4, 4, 4, 4, 4, 4],
+            21: [4, 4, 4, 4, 4, 4],
+            22: [4, 4, 4, 4, 4, 4],
+            23: [4, 4, 4, 4, 4, 4],
+            24: [4, 4, 4, 4, 4, 4],
+            25: [4, 4, 4, 4, 4, 4],
+            26: [4, 4, 4, 4, 4, 4],
+            27: [4, 4, 4, 4, 4, 4],
+            28: [4, 4, 4, 4, 4, 4],
+            29: [4, 4, 4, 4, 4, 4],
+            30: [4, 4, 4, 4, 4, 4],
+            31: [4, 4, 4, 4, 4, 4],
+            32: [4, 4, 4, 4, 4, 4],
+            33: [4, 4, 4, 4, 4, 4],
+            34: [4, 4, 4, 4, 4, 4],
+            35: [4, 4, 4, 4, 4, 4],
+            36: [4, 4, 4, 4, 4, 4],
+            37: [4, 4, 4, 4, 4, 4],
+            38: [4, 4, 4, 4, 4, 4],
+            39: [4, 4, 4, 4, 4, 4],
+            40: [4, 4, 4, 4, 4, 4],
+            41: [4, 4, 4, 4, 4, 4],
+            42: [4, 4, 4, 4, 4, 4],
+            43: [4, 4, 4, 4, 4, 4],
+            44: [4, 4, 4, 4, 4, 4],
+            45: [4, 4, 4, 4, 4, 4],
+            46: [4, 4, 4, 4, 4, 4],
+            47: [4, 4, 4, 4, 4, 4],
+            48: [4, 4, 4, 4, 4, 4],
+            49: [4, 4, 4, 4, 4, 4],
+            50: [4, 4, 4, 4, 4, 4],
+            51: [4, 4, 4, 4, 4, 4],
+            52: [4, 4, 4, 4, 4, 4],
+            53: [4, 4, 4, 4, 4, 4],
+            54: [4, 4, 4, 4, 4, 4],
+            55: [4, 4, 4, 4, 4, 4],
+            56: [4, 4, 4, 4, 4, 4],
+            57: [4, 4, 4, 4, 4, 4],
+            58: [4, 4, 4, 4, 4, 4],
+            59: [4, 4, 4, 4, 4, 4],
+            60: [4, 4, 4, 4, 4, 4],
+            61: [4, 4, 4, 4, 4, 4],
+            62: [4, 4, 4, 4, 4, 4],
+            63: [4, 4, 4, 4, 4, 4],
+            64: [4, 4, 4, 4, 4, 4],
+            65: [4, 4, 4, 4, 4, 4],
+            66: [4, 4, 4, 4, 4, 4],
+            67: [4, 4, 4, 4, 4, 4],
+            68: [4, 4, 4, 4, 4, 4],
+            69: [4, 4, 4, 4, 4, 4],
+            70: [4, 4, 4, 4, 4, 4],
+            71: [4, 4, 4, 4, 4, 4],
+            72: [4, 4, 4, 4, 4, 4],
+            73: [4, 4, 4, 4, 4, 4],
+            74: [4, 4, 4, 4, 4, 4],
+            75: [4, 4, 4, 4, 4, 4],
+            76: [4, 4, 4, 4, 4, 4],
+            77: [4, 4, 4, 4, 4, 4],
+            78: [4, 4, 4, 4, 4, 4],
+            79: [4, 4, 4, 4, 4, 4],
+            80: [4, 4, 4, 4, 4, 4],
+            81: [4, 4, 4, 4, 4, 4],
+            82: [4, 4, 4, 4, 4, 4],
+            83: [4, 4, 4, 4, 4, 4],
+            84: [4, 4, 4, 4, 4, 4],
+            85: [4, 4, 4, 4, 4, 4],
+            86: [4, 4, 4, 4, 4, 4],
+            87: [4, 4, 4, 4, 4, 4],
+            88: [4, 4, 4, 4, 4, 4],
+            89: [4, 4, 4, 4, 4, 4],
+            90: [4, 4, 4, 4, 4, 4],
+            91: [4, 4, 4, 4, 4, 4],
+            92: [4, 4, 4, 4, 4, 4],
+            93: [4, 4, 4, 4, 4, 4],
+            94: [4, 4, 4, 4, 4, 4],
+            95: [4, 4, 4, 4, 4, 4],
+            96: [4, 4, 4, 4, 4, 4],
+            97: [4, 4, 4, 4, 4, 4],
+            98: [4, 4, 4, 4, 4, 4],
+            99: [4, 4, 4, 4, 4, 4],
+            100: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            1: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            2: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            3: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            4: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            5: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            6: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            7: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            8: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            9: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            10: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            11: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            12: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            13: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            14: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            15: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            16: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            17: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            18: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            19: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            20: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            21: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            22: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            23: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            24: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            25: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            26: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            27: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            28: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            29: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            30: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            31: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            32: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            33: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            34: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            35: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            36: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            37: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            38: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            39: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            40: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            41: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            42: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            43: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            44: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            45: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            46: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            47: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            48: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            49: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            50: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            51: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            52: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            53: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            54: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            55: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            56: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            57: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            58: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            59: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            60: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            61: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            62: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            63: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            64: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            65: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            66: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            67: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            68: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            69: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            70: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            71: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            72: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            73: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            74: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            75: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            76: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            77: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            78: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            79: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            80: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            81: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            82: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            83: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            84: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            85: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            86: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            87: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            88: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            89: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            90: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            91: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            92: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
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+        }
+        rel material:binding = </consolidation_2_boxes_animated/Materials/Material__25>
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+        texCoord2f[] primvars:map1 (
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+            66: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            67: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            68: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            69: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            70: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            71: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            72: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            73: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            74: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            75: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            76: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            77: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            78: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            79: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            80: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            81: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            82: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            83: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            84: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            85: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            86: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            87: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            88: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            89: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            90: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            91: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            92: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            93: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            94: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            95: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            96: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            97: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            98: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            99: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            100: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:map1:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            1: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            2: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            3: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            4: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            5: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            6: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            7: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            8: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            9: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            10: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            11: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            12: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            13: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            14: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            15: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            16: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            17: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            18: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            19: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            20: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            21: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            22: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            23: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            24: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            25: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            26: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            27: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            28: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            29: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            30: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            31: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            32: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            33: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            34: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            35: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            36: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            37: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            38: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            39: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            40: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            41: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            42: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            43: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            44: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            45: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            46: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            47: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            48: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            49: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            50: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            51: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            52: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            53: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            54: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            55: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            56: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            57: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            58: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            59: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            60: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            61: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            62: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            63: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            64: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            65: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            66: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            67: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            68: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            69: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            70: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            71: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            72: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            73: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            74: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            75: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            76: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            77: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            78: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            79: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            80: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            81: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            82: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            83: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            84: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            85: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            86: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            87: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            88: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            89: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            90: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            91: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            92: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            93: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            94: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            95: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            96: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            97: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            98: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            99: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            100: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            1: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            2: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            3: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            4: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            5: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            6: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            7: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            8: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            9: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            10: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            11: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            12: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            13: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            14: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            15: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            16: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            17: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            18: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            19: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            20: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            21: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            22: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            23: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            24: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            25: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            26: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            27: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            28: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            29: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            30: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            31: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            32: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            33: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
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+            46: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            47: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            48: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            49: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            50: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            51: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            52: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            53: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            54: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            55: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            56: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            57: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            58: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            59: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            60: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            61: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            62: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            63: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            64: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            65: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            66: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            67: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            68: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            69: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            70: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            71: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            72: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            73: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            74: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            75: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            76: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            77: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            78: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            79: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            80: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            81: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            82: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            83: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            84: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            85: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            86: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            87: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            88: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            89: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            90: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            91: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            92: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            93: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            94: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            95: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            96: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            97: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            98: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            99: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            100: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            1: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            2: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            3: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            4: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            5: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            6: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            7: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            8: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            9: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            10: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            11: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            12: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            13: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            14: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            15: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            16: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            17: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            18: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            19: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            20: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            21: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            22: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            23: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            24: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            25: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            26: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            27: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            28: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            29: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            30: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            31: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            32: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            33: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            34: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            35: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            36: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            37: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            38: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            39: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            40: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            41: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            42: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            43: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            44: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            45: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            46: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            47: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            48: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            49: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            50: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            51: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            52: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            53: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            54: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            55: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            56: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            57: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            58: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            59: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            60: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            61: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            62: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            63: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            64: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            65: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            66: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            67: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            68: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            69: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            70: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            71: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            72: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            73: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            74: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            75: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            76: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            77: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            78: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            79: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            80: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            81: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            82: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            83: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            84: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            85: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            86: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            87: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            88: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            89: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            90: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            91: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            92: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            93: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            94: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            95: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            96: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            97: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            98: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            99: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            100: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            41: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            42: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            43: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            44: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            54: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            55: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            56: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            57: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            58: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            59: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            60: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            61: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            62: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            63: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            64: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            65: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            66: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            67: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            68: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            69: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            70: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            71: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            72: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            73: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            74: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            75: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            76: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            77: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            78: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            79: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            80: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            81: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            82: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            83: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            84: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            85: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            86: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            87: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+            100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (23.0976, -22.6558, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token outputs:surface.connect = </consolidation_2_boxes_animated/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_2_boxes_bad_primvar_indices.usda b/src/Tests/Integration/data/consolidation_2_boxes_bad_primvar_indices.usda
new file mode 100644
index 0000000..daf046e
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_2_boxes_bad_primvar_indices.usda
@@ -0,0 +1,276 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_2_boxes"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_2_boxes"
+{
+    def Xform "consolidation_2_boxes"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-6.057826, -5.9991794, 0), (6.057826, 5.9991794, 7.2729344)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            rel material:binding = </consolidation_2_boxes/Materials/Material__25>
+            point3f[] points = [(-6.057826, -5.9991794, 0), (6.057826, -5.9991794, 0), (-6.057826, 5.9991794, 0), (6.057826, 5.9991794, 0), (-6.057826, -5.9991794, 7.2729344), (6.057826, -5.9991794, 7.2729344), (-6.057826, 5.9991794, 7.2729344), (6.057826, 5.9991794, 7.2729344)]
+            color3f[] primvars:displayColor = [(0.8392157, 0.89411765, 0.6)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+			
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+			int[] primvars:normals:indices = [0, 1, 2, 3, 4, 5, 6, -1, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, -1, 22, 23]
+			
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-8.1127, 1.24951, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Mesh "Box002"
+        {
+            float3[] extent = [(-6.057826, -5.9991794, 0), (6.057826, 5.9991794, 7.2729344)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            rel material:binding = </consolidation_2_boxes/Materials/Material__25>
+            point3f[] points = [(-6.057826, -5.9991794, 0), (6.057826, -5.9991794, 0), (-6.057826, 5.9991794, 0), (6.057826, 5.9991794, 0), (-6.057826, -5.9991794, 7.2729344), (6.057826, -5.9991794, 7.2729344), (-6.057826, 5.9991794, 7.2729344), (6.057826, 5.9991794, 7.2729344)]
+            color3f[] primvars:displayColor = [(0.8392157, 0.89411765, 0.6)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+			int[] primvars:map1:indices = [0, 1, 2, 3, 4, 5, 6, -1, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, -1, 22, 23]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (0.701358, 0, -0.71281, 0), (-0.375654, 0.849863, -0.369619, 0), (0.60579, 0.527004, 0.596058, 0), (7.4267, 1.24951, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Xform "Materials"
+        {
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </consolidation_2_boxes/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </consolidation_2_boxes/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </consolidation_2_boxes/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </consolidation_2_boxes/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </consolidation_2_boxes/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }		
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_2_planes_anim.usda b/src/Tests/Integration/data/consolidation_2_planes_anim.usda
new file mode 100644
index 0000000..373550e
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_2_planes_anim.usda
@@ -0,0 +1,190 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_2_planes_anim"
+    endTimeCode = 1
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "consolidation_2_planes_anim"
+{
+    def Mesh "Plane001" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        rel material:binding = </consolidation_2_planes_anim/Materials/Material__25>
+        
+        float3[] extent.timeSamples = {
+            0: [(-12.20685, -11.817253, 0), (12.20685, 11.817253, 0.0001)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-12.20685, -11.817253, 0), (0, -11.817253, 0), (12.20685, -11.817253, 0), (-12.20685, 0, 0), (0, 0, 0), (12.20685, 0, 0), (-12.20685, 11.817253, 0), (0, 11.817253, 0), (12.20685, 11.817253, 0)],
+        }
+        color3f[] primvars:displayColor = [(0.03137255, 0.43137255, 0.5294118)]
+        texCoord2f[] primvars:map1 (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:map1.timeSamples = {
+            0: [(0, 0), (0.5, 0), (1, 0), (0, 0.5), (0.5, 0.5), (1, 0.5), (0, 1), (0.5, 1), (1, 1)],
+        }
+        int[] primvars:map1:indices.timeSamples = {
+            0: [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8],
+        }
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 3, 2, 4, 5, 6, 0, 3, 7, 7, 3, 5, 8],
+        }
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-10.2058, -2.0473, 0, 1) ),
+            0.5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-10.2058, -2.0473, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-10.2058, -2.0473, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Mesh "Plane002" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        rel material:binding = </consolidation_2_planes_anim/Materials/Material__25>
+        
+        float3[] extent.timeSamples = {
+            0: [(-12.20685, -11.817253, 0), (12.20685, 11.817253, 0.0001)],
+            0.5: [(-12.20685, -11.817253, 0), (12.20685, 11.817253, 0.0001)],
+            1: [(-12.20685, -11.817253, 0), (12.20685, 11.817253, 0.0001)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [3, 3, 3, 3, 3, 3, 3, 3],
+            0.5: [3, 3, 3, 3, 3, 3, 3, 3],
+            1: [3, 3, 3, 3, 3, 3, 3, 3],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+            0.5: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+            1: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-12.20685, -11.817253, 0), (0, -11.817253, 0), (12.20685, -11.817253, 0), (-12.20685, 0, 0), (0, 0, 0), (12.20685, 0, 0), (-12.20685, 11.817253, 0), (0, 11.817253, 0), (12.20685, 11.817253, 0)],
+            0.5: [(-12.20685, -11.817253, 0), (0, -11.817253, 0), (12.20685, -11.817253, 0), (-12.20685, 0, 0), (0, 0, 0), (12.20685, 0, 0), (-12.20685, 11.817253, 0), (0, 11.817253, 0), (12.20685, 11.817253, 0)],
+            1: [(-12.20685, -11.817253, 0), (0, -11.817253, 0), (12.20685, -11.817253, 0), (-12.20685, 0, 0), (0, 0, 0), (12.20685, 0, 0), (-12.20685, 11.817253, 0), (0, 11.817253, 0), (12.20685, 11.817253, 0)],
+        }
+        color3f[] primvars:displayColor = [(0.03137255, 0.43137255, 0.5294118)]
+        texCoord2f[] primvars:map1 (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:map1.timeSamples = {
+            0: [(5.7220458e-8, -1.3947486e-7), (0.95999974, -7.7486035e-8), (1.9199995, -1.5497207e-8), (2.8610228e-7, -0.26000005), (0.96, -0.26), (1.9199997, -0.25999993), (5.149841e-7, -0.52), (0.9600002, -0.5199999), (1.92, -0.51999986)],
+            0.5: [(0.46259066, -0.5441529), (0.95999986, -0.5441529), (1.457409, -0.54415303), (0.46259078, -0.2599999), (0.96, -0.26), (1.4574091, -0.26000005), (0.4625909, 0.024153048), (0.9600001, 0.024152987), (1.4574093, 0.024152923)],
+            1: [(0.62433565, -0.35187274), (0.9599999, -0.35187277), (1.2956641, -0.3518728), (0.6243357, -0.25999996), (0.96, -0.26), (1.2956642, -0.26000002), (0.62433577, -0.16812718), (0.9600001, -0.16812721), (1.2956643, -0.16812725)],
+        }
+        int[] primvars:map1:indices.timeSamples = {
+            0: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+            0.5: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+            1: [3, 0, 4, 1, 4, 0, 4, 1, 5, 2, 5, 1, 6, 3, 7, 4, 7, 3, 7, 4, 8, 5, 8, 4],
+        }
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)],
+            0.5: [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)],
+            1: [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 2, 1, 2, 3, 4, 5, 4, 3, 6, 0, 7, 2, 7, 0, 7, 2, 8, 4, 8, 2],
+            0.5: [0, 1, 2, 3, 2, 1, 2, 3, 4, 5, 4, 3, 6, 0, 7, 2, 7, 0, 7, 2, 8, 4, 8, 2],
+            1: [0, 1, 2, 3, 2, 1, 2, 3, 4, 5, 4, 3, 6, 0, 7, 2, 7, 0, 7, 2, 8, 4, 8, 2],
+        }
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (0.713597, 0.700556, 0, 0), (-0.539642, 0.549688, 0.327946, 0), (0.229744, -0.234021, 0.770306, 0), (24.0619, -2.0473, 15.7368, 1) ),
+            0.5: ( (-0.665787, -0.0917436, -0.10246, 0), (-0.0302892, 0.506906, -0.257069, 0), (0.111087, -0.247189, -0.500513, 0), (24.0619, -2.0473, 15.7368, 1) ),
+            1: ( (0.300935, -0.165304, -0.107179, 0), (0.164737, 0.203048, 0.14938, 0), (-0.00814782, -0.174068, 0.245591, 0), (24.0619, -2.0473, 15.7368, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </consolidation_2_planes_anim/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+  
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </consolidation_2_planes_anim/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+    
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </consolidation_2_planes_anim/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+  
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </consolidation_2_planes_anim/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+  
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </consolidation_2_planes_anim/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }  
+    }
+    
+}
+
diff --git a/src/Tests/Integration/data/consolidation_3_spheres.usda b/src/Tests/Integration/data/consolidation_3_spheres.usda
new file mode 100644
index 0000000..d951038
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_3_spheres.usda
@@ -0,0 +1,113 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_3_spheres"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_3_spheres"
+{
+    def Mesh "Sphere001" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        float3[] extent = [(-4.581316, -4.581316, -4.581316), (4.581316, 4.581316, 4.581316)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1, 5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4]
+        rel material:binding = </consolidation_3_spheres/Materials/Material__26>
+        point3f[] points = [(0, 0, 4.581316), (-2.0025568e-7, 4.581316, -2.0025568e-7), (-4.581316, -4.0051137e-7, -2.0025568e-7), (5.4631645e-8, -4.581316, -2.0025568e-7), (4.581316, 8.0102274e-7, -2.0025568e-7), (0, 0, -4.581316)]
+        color3f[] primvars:displayColor = [(0.69411767, 0.10980392, 0.58431375)]
+        texCoord2f[] primvars:map1 = [(0, 1), (0.25, 1), (0.5, 1), (0.75, 1), (0, 0.5), (0.25, 0.5), (0.5, 0.5), (0.75, 0.5), (1, 0.5), (0, 0), (0.25, 0), (0.5, 0), (0.75, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:map1:indices = [0, 4, 5, 1, 5, 6, 2, 6, 7, 3, 7, 8, 9, 5, 4, 10, 6, 5, 11, 7, 6, 12, 8, 7]
+        float3[] primvars:normals = [(0, -4.9292645e-8, 1), (-1.4787793e-7, 1, 0), (-1, 0, 0), (4.929265e-8, -1, -2.4646326e-8), (1, 0, 0), (0, -4.9292645e-8, -1)] (
+            interpolation = "vertex"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-32.3972, 6.41324, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Mesh "Sphere002" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        float3[] extent = [(-4.3177342, -4.539934, -4.773569), (4.3177347, 4.539934, 4.773569)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 5, 0, 5, 6, 0, 6, 7, 0, 7, 8, 0, 8, 9, 0, 9, 10, 0, 10, 1, 1, 11, 12, 2, 2, 12, 13, 3, 3, 13, 14, 4, 4, 14, 15, 5, 5, 15, 16, 6, 6, 16, 17, 7, 7, 17, 18, 8, 8, 18, 19, 9, 9, 19, 20, 10, 10, 20, 11, 1, 11, 21, 22, 12, 12, 22, 23, 13, 13, 23, 24, 14, 14, 24, 25, 15, 15, 25, 26, 16, 16, 26, 27, 17, 17, 27, 28, 18, 18, 28, 29, 19, 19, 29, 30, 20, 20, 30, 21, 11, 21, 31, 32, 22, 22, 32, 33, 23, 23, 33, 34, 24, 24, 34, 35, 25, 25, 35, 36, 26, 26, 36, 37, 27, 27, 37, 38, 28, 28, 38, 39, 29, 29, 39, 40, 30, 30, 40, 31, 21, 41, 32, 31, 41, 33, 32, 41, 34, 33, 41, 35, 34, 41, 36, 35, 41, 37, 36, 41, 38, 37, 41, 39, 38, 41, 40, 39, 41, 31, 40]
+        rel material:binding = </consolidation_3_spheres/Materials/Material__26>
+        point3f[] points = [(0, 0, 4.773569), (-1.2264688e-7, 2.8058336, 3.8618987), (-1.6492274, 2.269967, 3.8618987), (-2.6685061, 0.86705035, 3.8618987), (-2.6685064, -0.8670502, 3.8618987), (-1.6492281, -2.2699666, 3.8618987), (3.345923e-8, -2.8058336, 3.8618987), (1.6492282, -2.2699666, 3.8618987), (2.6685066, -0.86704886, 3.8618987), (2.6685057, 0.8670524, 3.8618987), (1.6492252, 2.2699687, 3.8618987), (-1.9844683e-7, 4.539934, 1.4751139), (-2.6685061, 3.672884, 1.4751139), (-4.317734, 1.402917, 1.4751139), (-4.3177342, -1.4029167, 1.4751139), (-2.668507, -3.672883, 1.4751139), (5.4138173e-8, -4.539934, 1.4751139), (2.6685073, -3.672883, 1.4751139), (4.3177347, -1.4029145, 1.4751139), (4.317733, 1.4029202, 1.4751139), (2.6685026, 3.6728866, 1.4751139), (-1.984468e-7, 4.5399337, -1.4751141), (-2.6685057, 3.6728835, -1.4751141), (-4.3177333, 1.4029168, -1.4751141), (-4.317734, -1.4029166, -1.4751141), (-2.6685069, -3.6728828, -1.4751141), (5.4138166e-8, -4.5399337, -1.4751141), (2.668507, -3.6728828, -1.4751141), (4.3177342, -1.4029144, -1.4751141), (4.3177323, 1.4029201, -1.4751141), (2.6685023, 3.6728861, -1.4751141), (-1.2264687e-7, 2.805833, -3.861899), (-1.6492271, 2.2699666, -3.861899), (-2.6685057, 0.86705023, -3.861899), (-2.668506, -0.86705005, -3.861899), (-1.6492277, -2.2699661, -3.861899), (3.3459227e-8, -2.805833, -3.861899), (1.649228, -2.2699661, -3.861899), (2.6685061, -0.86704874, -3.861899), (2.6685052, 0.8670522, -3.861899), (1.649225, 2.2699683, -3.861899), (0, 0, -4.773569)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.6039216, 0.8980392)]
+        texCoord2f[] primvars:map1 = [(0, 1), (0.1, 1), (0.2, 1), (0.3, 1), (0.4, 1), (0.5, 1), (0.6, 1), (0.7, 1), (0.8, 1), (0.90000004, 1), (0, 0.8), (0.1, 0.8), (0.2, 0.8), (0.3, 0.8), (0.4, 0.8), (0.5, 0.8), (0.6, 0.8), (0.7, 0.8), (0.8, 0.8), (0.90000004, 0.8), (1.0000001, 0.8), (0, 0.6), (0.1, 0.6), (0.2, 0.6), (0.3, 0.6), (0.4, 0.6), (0.5, 0.6), (0.6, 0.6), (0.7, 0.6), (0.8, 0.6), (0.90000004, 0.6), (1.0000001, 0.6), (0, 0.39999998), (0.1, 0.39999998), (0.2, 0.39999998), (0.3, 0.39999998), (0.4, 0.39999998), (0.5, 0.39999998), (0.6, 0.39999998), (0.7, 0.39999998), (0.8, 0.39999998), (0.90000004, 0.39999998), (1.0000001, 0.39999998), (0, 0.19999999), (0.1, 0.19999999), (0.2, 0.19999999), (0.3, 0.19999999), (0.4, 0.19999999), (0.5, 0.19999999), (0.6, 0.19999999), (0.7, 0.19999999), (0.8, 0.19999999), (0.90000004, 0.19999999), (1.0000001, 0.19999999), (0, 0), (0.1, 0), (0.2, 0), (0.3, 0), (0.4, 0), (0.5, 0), (0.6, 0), (0.7, 0), (0.8, 0), (0.90000004, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:map1:indices = [0, 10, 11, 1, 11, 12, 2, 12, 13, 3, 13, 14, 4, 14, 15, 5, 15, 16, 6, 16, 17, 7, 17, 18, 8, 18, 19, 9, 19, 20, 10, 21, 22, 11, 11, 22, 23, 12, 12, 23, 24, 13, 13, 24, 25, 14, 14, 25, 26, 15, 15, 26, 27, 16, 16, 27, 28, 17, 17, 28, 29, 18, 18, 29, 30, 19, 19, 30, 31, 20, 21, 32, 33, 22, 22, 33, 34, 23, 23, 34, 35, 24, 24, 35, 36, 25, 25, 36, 37, 26, 26, 37, 38, 27, 27, 38, 39, 28, 28, 39, 40, 29, 29, 40, 41, 30, 30, 41, 42, 31, 32, 43, 44, 33, 33, 44, 45, 34, 34, 45, 46, 35, 35, 46, 47, 36, 36, 47, 48, 37, 37, 48, 49, 38, 38, 49, 50, 39, 39, 50, 51, 40, 40, 51, 52, 41, 41, 52, 53, 42, 54, 44, 43, 55, 45, 44, 56, 46, 45, 57, 47, 46, 58, 48, 47, 59, 49, 48, 60, 50, 49, 61, 51, 50, 62, 52, 51, 63, 53, 52]
+        float3[] primvars:normals = [(1.5836697e-8, -2.1115596e-8, 1), (-1.8493515e-7, 0.6252257, 0.78044397), (-0.36749843, 0.5058182, 0.78044397), (-0.594625, 0.19320543, 0.780444), (-0.594625, -0.19320531, 0.780444), (-0.36749852, -0.5058182, 0.78044397), (-1.05677245e-8, -0.6252258, 0.78044397), (0.3674986, -0.5058181, 0.78044397), (0.5946251, -0.19320506, 0.78044397), (0.5946248, 0.19320582, 0.78044397), (0.36749807, 0.5058185, 0.78044397), (-2.7062555e-7, 0.95627135, 0.29248112), (-0.5620822, 0.77363974, 0.29248106), (-0.909468, 0.29550415, 0.29248103), (-0.90946805, -0.29550403, 0.2924811), (-0.56208223, -0.7736397, 0.29248106), (-2.2091886e-8, -0.9562713, 0.29248106), (0.5620824, -0.77363956, 0.29248106), (0.90946823, -0.29550362, 0.29248106), (0.9094678, 0.29550478, 0.29248106), (0.5620816, 0.7736402, 0.2924811), (-2.7062552e-7, 0.95627123, -0.29248127), (-0.5620822, 0.77363974, -0.29248124), (-0.909468, 0.29550418, -0.29248127), (-0.909468, -0.29550397, -0.29248124), (-0.56208223, -0.7736397, -0.29248127), (-2.7614854e-8, -0.95627123, -0.29248124), (0.56208235, -0.77363956, -0.29248124), (0.9094682, -0.2955036, -0.29248124), (0.9094678, 0.2955048, -0.29248124), (0.5620815, 0.7736401, -0.29248124), (-1.875771e-7, 0.62522566, -0.7804441), (-0.36749846, 0.5058182, -0.780444), (-0.594625, 0.19320545, -0.78044397), (-0.59462494, -0.1932053, -0.78044397), (-0.3674985, -0.5058182, -0.78044397), (-1.05677245e-8, -0.6252257, -0.780444), (0.36749858, -0.5058181, -0.78044397), (0.59462506, -0.19320507, -0.780444), (0.5946248, 0.19320582, -0.780444), (0.36749807, 0.5058185, -0.7804441), (-1.3857113e-8, -7.91835e-9, -1)] (
+            interpolation = "vertex"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-2.5406, 4.85093, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Mesh "Sphere003" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        float3[] extent = [(-11.301828, -11.301828, -11.301828), (11.301828, 11.301828, 11.301828)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 5, 0, 5, 6, 0, 6, 7, 0, 7, 8, 0, 8, 9, 0, 9, 10, 0, 10, 11, 0, 11, 12, 0, 12, 13, 0, 13, 14, 0, 14, 15, 0, 15, 16, 0, 16, 17, 0, 17, 18, 0, 18, 19, 0, 19, 20, 0, 20, 21, 0, 21, 22, 0, 22, 23, 0, 23, 24, 0, 24, 25, 0, 25, 26, 0, 26, 27, 0, 27, 28, 0, 28, 29, 0, 29, 30, 0, 30, 31, 0, 31, 32, 0, 32, 1, 1, 33, 34, 2, 2, 34, 35, 3, 3, 35, 36, 4, 4, 36, 37, 5, 5, 37, 38, 6, 6, 38, 39, 7, 7, 39, 40, 8, 8, 40, 41, 9, 9, 41, 42, 10, 10, 42, 43, 11, 11, 43, 44, 12, 12, 44, 45, 13, 13, 45, 46, 14, 14, 46, 47, 15, 15, 47, 48, 16, 16, 48, 49, 17, 17, 49, 50, 18, 18, 50, 51, 19, 19, 51, 52, 20, 20, 52, 53, 21, 21, 53, 54, 22, 22, 54, 55, 23, 23, 55, 56, 24, 24, 56, 57, 25, 25, 57, 58, 26, 26, 58, 59, 27, 27, 59, 60, 28, 28, 60, 61, 29, 29, 61, 62, 30, 30, 62, 63, 31, 31, 63, 64, 32, 32, 64, 33, 1, 33, 65, 66, 34, 34, 66, 67, 35, 35, 67, 68, 36, 36, 68, 69, 37, 37, 69, 70, 38, 38, 70, 71, 39, 39, 71, 72, 40, 40, 72, 73, 41, 41, 73, 74, 42, 42, 74, 75, 43, 43, 75, 76, 44, 44, 76, 77, 45, 45, 77, 78, 46, 46, 78, 79, 47, 47, 79, 80, 48, 48, 80, 81, 49, 49, 81, 82, 50, 50, 82, 83, 51, 51, 83, 84, 52, 52, 84, 85, 53, 53, 85, 86, 54, 54, 86, 87, 55, 55, 87, 88, 56, 56, 88, 89, 57, 57, 89, 90, 58, 58, 90, 91, 59, 59, 91, 92, 60, 60, 92, 93, 61, 61, 93, 94, 62, 62, 94, 95, 63, 63, 95, 96, 64, 64, 96, 65, 33, 65, 97, 98, 66, 66, 98, 99, 67, 67, 99, 100, 68, 68, 100, 101, 69, 69, 101, 102, 70, 70, 102, 103, 71, 71, 103, 104, 72, 72, 104, 105, 73, 73, 105, 106, 74, 74, 106, 107, 75, 75, 107, 108, 76, 76, 108, 109, 77, 77, 109, 110, 78, 78, 110, 111, 79, 79, 111, 112, 80, 80, 112, 113, 81, 81, 113, 114, 82, 82, 114, 115, 83, 83, 115, 116, 84, 84, 116, 117, 85, 85, 117, 118, 86, 86, 118, 119, 87, 87, 119, 120, 88, 88, 120, 121, 89, 89, 121, 122, 90, 90, 122, 123, 91, 91, 123, 124, 92, 92, 124, 125, 93, 93, 125, 126, 94, 94, 126, 127, 95, 95, 127, 128, 96, 96, 128, 97, 65, 97, 129, 130, 98, 98, 130, 131, 99, 99, 131, 132, 100, 100, 132, 133, 101, 101, 133, 134, 102, 102, 134, 135, 103, 103, 135, 136, 104, 104, 136, 137, 105, 105, 137, 138, 106, 106, 138, 139, 107, 107, 139, 140, 108, 108, 140, 141, 109, 109, 141, 142, 110, 110, 142, 143, 111, 111, 143, 144, 112, 112, 144, 145, 113, 113, 145, 146, 114, 114, 146, 147, 115, 115, 147, 148, 116, 116, 148, 149, 117, 117, 149, 150, 118, 118, 150, 151, 119, 119, 151, 152, 120, 120, 152, 153, 121, 121, 153, 154, 122, 122, 154, 155, 123, 123, 155, 156, 124, 124, 156, 157, 125, 125, 157, 158, 126, 126, 158, 159, 127, 127, 159, 160, 128, 128, 160, 129, 97, 129, 161, 162, 130, 130, 162, 163, 131, 131, 163, 164, 132, 132, 164, 165, 133, 133, 165, 166, 134, 134, 166, 167, 135, 135, 167, 168, 136, 136, 168, 169, 137, 137, 169, 170, 138, 138, 170, 171, 139, 139, 171, 172, 140, 140, 172, 173, 141, 141, 173, 174, 142, 142, 174, 175, 143, 143, 175, 176, 144, 144, 176, 177, 145, 145, 177, 178, 146, 146, 178, 179, 147, 147, 179, 180, 148, 148, 180, 181, 149, 149, 181, 182, 150, 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+        rel material:binding = </consolidation_3_spheres/Materials/Material__26>
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+            interpolation = "faceVarying"
+        )
+        int[] primvars:map1:indices = [0, 32, 33, 1, 33, 34, 2, 34, 35, 3, 35, 36, 4, 36, 37, 5, 37, 38, 6, 38, 39, 7, 39, 40, 8, 40, 41, 9, 41, 42, 10, 42, 43, 11, 43, 44, 12, 44, 45, 13, 45, 46, 14, 46, 47, 15, 47, 48, 16, 48, 49, 17, 49, 50, 18, 50, 51, 19, 51, 52, 20, 52, 53, 21, 53, 54, 22, 54, 55, 23, 55, 56, 24, 56, 57, 25, 57, 58, 26, 58, 59, 27, 59, 60, 28, 60, 61, 29, 61, 62, 30, 62, 63, 31, 63, 64, 32, 65, 66, 33, 33, 66, 67, 34, 34, 67, 68, 35, 35, 68, 69, 36, 36, 69, 70, 37, 37, 70, 71, 38, 38, 71, 72, 39, 39, 72, 73, 40, 40, 73, 74, 41, 41, 74, 75, 42, 42, 75, 76, 43, 43, 76, 77, 44, 44, 77, 78, 45, 45, 78, 79, 46, 46, 79, 80, 47, 47, 80, 81, 48, 48, 81, 82, 49, 49, 82, 83, 50, 50, 83, 84, 51, 51, 84, 85, 52, 52, 85, 86, 53, 53, 86, 87, 54, 54, 87, 88, 55, 55, 88, 89, 56, 56, 89, 90, 57, 57, 90, 91, 58, 58, 91, 92, 59, 59, 92, 93, 60, 60, 93, 94, 61, 61, 94, 95, 62, 62, 95, 96, 63, 63, 96, 97, 64, 65, 98, 99, 66, 66, 99, 100, 67, 67, 100, 101, 68, 68, 101, 102, 69, 69, 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-0.9795977), (-0.03920684, -0.19710699, -0.9795977), (1.9389947e-7, -0.20096853, -0.9795977), (0.039207235, -0.19710694, -0.9795977), (0.07690752, -0.18567063, -0.9795977), (0.11165233, -0.16709909, -0.9795977), (0.14210638, -0.14210601, -0.9795977), (0.16709939, -0.11165194, -0.9795977), (0.18567084, -0.076907046, -0.9795977), (0.19710703, -0.039206695, -0.97959775), (0.20096853, 3.0665947e-7, -0.9795977), (0.19710693, 0.039207354, -0.9795977), (0.18567057, 0.07690765, -0.9795977), (0.16709903, 0.11165245, -0.9795977), (0.14210594, 0.14210649, -0.9795977), (0.111651815, 0.16709945, -0.9795976), (0.07690695, 0.18567088, -0.9795976), (0.039206687, 0.19710702, -0.9795978), (-3.6875342e-8, 2.7539576e-8, -1)] (
+            interpolation = "vertex"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (33.9425, 6.97645, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </consolidation_3_spheres/Materials/Material__26/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_4_instances.usda b/src/Tests/Integration/data/consolidation_4_instances.usda
new file mode 100644
index 0000000..9634b31
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_4_instances.usda
@@ -0,0 +1,132 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_4_instances"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_4_instances"
+{
+    def Xform "Sphere001" (
+        prepend inherits = </consolidation_4_instances/_class_Sphere001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0.168677, -0.483523, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Sphere001"
+    {
+        def Mesh "Sphere001" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            float3[] extent = [(-7.0668163, -7.0668163, -3.0890035e-7), (7.0668163, 7.0668163, 7.0668163)]
+            int[] faceVertexCounts = [3, 3, 3, 3]
+            int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1]
+            point3f[] points = [(0, 0, 7.0668163), (-3.0890035e-7, 7.0668163, -3.0890035e-7), (-7.0668163, -6.178007e-7, -3.0890035e-7), (8.4270944e-8, -7.0668163, -3.0890035e-7), (7.0668163, 0.0000012356014, -3.0890035e-7)]
+            color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.7764706)]
+            texCoord2f[] primvars:map1 = [(0, 1), (0.25, 1), (0.5, 1), (0.75, 1), (0, 0.5), (0.25, 0.5), (0.5, 0.5), (0.75, 0.5), (1, 0.5)] (
+                interpolation = "faceVarying"
+            )
+            rel material:binding = </consolidation_4_instances/Materials/Material__25>
+            int[] primvars:map1:indices = [0, 4, 5, 1, 5, 6, 2, 6, 7, 3, 7, 8]
+            float3[] primvars:normals = [(4.929265e-8, -2.4646326e-8, 1), (-6.9710325e-8, 0.7071068, 0.70710677), (-0.7071068, -3.4855162e-8, 0.70710677), (6.9710325e-8, -0.7071068, 0.70710677), (0.7071068, 1.0456549e-7, 0.7071068)] (
+                interpolation = "vertex"
+            )
+            uniform token subdivisionScheme = "none"
+        }
+    }
+
+    def Xform "Sphere002" (
+        prepend inherits = </consolidation_4_instances/_class_Sphere001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-21.0485, -0.483523, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Sphere003" (
+        prepend inherits = </consolidation_4_instances/_class_Sphere001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (19.7699, -0.483523, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Sphere004" (
+        prepend inherits = </consolidation_4_instances/_class_Sphere001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-0.122053, 18.3325, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+    
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </consolidation_4_instances/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+  
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </consolidation_4_instances/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+    
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </consolidation_4_instances/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+  
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </consolidation_4_instances/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+  
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </consolidation_4_instances/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }  
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_4_materials.usda b/src/Tests/Integration/data/consolidation_4_materials.usda
new file mode 100644
index 0000000..e536e78
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_4_materials.usda
@@ -0,0 +1,1072 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.12.0"
+    }
+    defaultPrim = "consolidation_4_materials"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "consolidation_4_materials"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-8.641548, -9.890694, 0), (8.641548, 9.890694, 3.4236026)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__28>
+        point3f[] points = [(-8.641548, -9.890694, 0), (8.641548, -9.890694, 0), (-8.641548, 9.890694, 0), (8.641548, 9.890694, 0), (-8.641548, -9.890694, 3.4236026), (8.641548, -9.890694, 3.4236026), (-8.641548, 9.890694, 3.4236026), (8.641548, 9.890694, 3.4236026)]
+        color3f[] primvars:displayColor = [(0.76862746, 0.34509805, 0.88235295)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-30.6407, 17.4556, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent = [(-7.2729435, -6.558754, 0), (7.2729435, 6.558754, 5.8181744)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__26>
+        point3f[] points = [(-7.2729435, -6.558754, 0), (7.2729435, -6.558754, 0), (-7.2729435, 6.558754, 0), (7.2729435, 6.558754, 0), (-7.2729435, -6.558754, 5.8181744), (7.2729435, -6.558754, 5.8181744), (-7.2729435, 6.558754, 5.8181744), (7.2729435, 6.558754, 5.8181744)]
+        color3f[] primvars:displayColor = [(0.03137255, 0.03137255, 0.53333336)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (3.92418, 7.65221, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box003"
+    {
+        float3[] extent = [(-14.203251, -10.624994, 0), (14.203251, 10.624994, 9.153005)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__25>
+        point3f[] points = [(-14.203251, -10.624994, 0), (14.203251, -10.624994, 0), (-14.203251, 10.624994, 0), (14.203251, 10.624994, 0), (-14.203251, -10.624994, 9.153005), (14.203251, -10.624994, 9.153005), (-14.203251, 10.624994, 9.153005), (14.203251, 10.624994, 9.153005)]
+        color3f[] primvars:displayColor = [(0.023529412, 0.5294118, 0.22745098)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (20.7467, -39.192, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box004"
+    {
+        float3[] extent = [(-7.5054636, -4.653594, 0), (7.5054636, 4.653594, 4.999768)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__25>
+        point3f[] points = [(-7.5054636, -4.653594, 0), (7.5054636, -4.653594, 0), (-7.5054636, 4.653594, 0), (7.5054636, 4.653594, 0), (-7.5054636, -4.653594, 4.999768), (7.5054636, -4.653594, 4.999768), (-7.5054636, 4.653594, 4.999768), (7.5054636, 4.653594, 4.999768)]
+        color3f[] primvars:displayColor = [(0.42352942, 0.03137255, 0.53333336)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-27.3531, -19.0625, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box005"
+    {
+        float3[] extent = [(-6.724062, -6.1047425, 0), (6.724062, 6.1047425, 7.1029406)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__26>
+        point3f[] points = [(-6.724062, -6.1047425, 0), (6.724062, -6.1047425, 0), (-6.724062, 6.1047425, 0), (6.724062, 6.1047425, 0), (-6.724062, -6.1047425, 7.1029406), (6.724062, -6.1047425, 7.1029406), (-6.724062, 6.1047425, 7.1029406), (6.724062, 6.1047425, 7.1029406)]
+        color3f[] primvars:displayColor = [(0.5803922, 0.69411767, 0.105882354)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (40.5913, 11.1517, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box006"
+    {
+        float3[] extent = [(-10.384756, -8.552464, 0), (10.384756, 8.552464, 9.213061)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__27>
+        point3f[] points = [(-10.384756, -8.552464, 0), (10.384756, -8.552464, 0), (-10.384756, 8.552464, 0), (10.384756, 8.552464, 0), (-10.384756, -8.552464, 9.213061), (10.384756, -8.552464, 9.213061), (-10.384756, 8.552464, 9.213061), (10.384756, 8.552464, 9.213061)]
+        color3f[] primvars:displayColor = [(0.105882354, 0.69411767, 0.34509805)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (4.5661, 43.8007, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box007"
+    {
+        float3[] extent = [(-5.1720495, -5.0533314, 0), (5.1720495, 5.0533314, 11.054602)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__25>
+        point3f[] points = [(-5.1720495, -5.0533314, 0), (5.1720495, -5.0533314, 0), (-5.1720495, 5.0533314, 0), (5.1720495, 5.0533314, 0), (-5.1720495, -5.0533314, 11.054602), (5.1720495, -5.0533314, 11.054602), (-5.1720495, 5.0533314, 11.054602), (5.1720495, 5.0533314, 11.054602)]
+        color3f[] primvars:displayColor = [(0.5686275, 0.10980392, 0.69411767)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-28.0311, -60.3695, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box008"
+    {
+        float3[] extent = [(-1.9829407, -8.656628, 0), (1.9829407, 8.656628, 11.288704)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__26>
+        point3f[] points = [(-1.9829407, -8.656628, 0), (1.9829407, -8.656628, 0), (-1.9829407, 8.656628, 0), (1.9829407, 8.656628, 0), (-1.9829407, -8.656628, 11.288704), (1.9829407, -8.656628, 11.288704), (-1.9829407, 8.656628, 11.288704), (1.9829407, 8.656628, 11.288704)]
+        color3f[] primvars:displayColor = [(0.89411765, 0.8392157, 0.6)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (71.2108, -22.6225, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box009"
+    {
+        float3[] extent = [(-14.686369, -1.5019646, 0), (14.686369, 1.5019646, 16.024971)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__27>
+        point3f[] points = [(-14.686369, -1.5019646, 0), (14.686369, -1.5019646, 0), (-14.686369, 1.5019646, 0), (14.686369, 1.5019646, 0), (-14.686369, -1.5019646, 16.024971), (14.686369, -1.5019646, 16.024971), (-14.686369, 1.5019646, 16.024971), (14.686369, 1.5019646, 16.024971)]
+        color3f[] primvars:displayColor = [(0.5294118, 0.023529412, 0.023529412)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (53.5039, 48.9872, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box010"
+    {
+        float3[] extent = [(-4.5429115, -7.554832, 0), (4.5429115, 7.554832, 10.768058)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </consolidation_4_materials/Materials/Material__26>
+        point3f[] points = [(-4.5429115, -7.554832, 0), (4.5429115, -7.554832, 0), (-4.5429115, 7.554832, 0), (4.5429115, 7.554832, 0), (-4.5429115, -7.554832, 10.768058), (4.5429115, -7.554832, 10.768058), (-4.5429115, 7.554832, 10.768058), (4.5429115, 7.554832, 10.768058)]
+        color3f[] primvars:displayColor = [(0.105882354, 0.69411767, 0.5803922)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (69.5154, 11.4515, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </consolidation_4_materials/Materials/Material__26/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.7490196, 0.3529412, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__28"
+        {
+            token outputs:surface.connect = </consolidation_4_materials/Materials/Material__28/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__25"
+        {
+            token outputs:surface.connect = </consolidation_4_materials/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.42745098, 0.007843138, 1)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__27"
+        {
+            token outputs:surface.connect = </consolidation_4_materials/Materials/Material__27/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0, 1, 0.42352942)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_6_instanced_boxes.usda b/src/Tests/Integration/data/consolidation_6_instanced_boxes.usda
new file mode 100644
index 0000000..c5feb71
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_6_instanced_boxes.usda
@@ -0,0 +1,218 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.24.0 "
+    }
+    defaultPrim = "subset_crash"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "subset_crash"
+{
+    def Xform "Box001" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (116.5, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box001"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-10.01922, -12.82999, 0), (10.01922, 12.82999, 12.527606)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-10.01922, -12.82999, 0), (10.01922, -12.82999, 0), (-10.01922, 12.82999, 0), (10.01922, 12.82999, 0), (-10.01922, -12.82999, 12.527606), (10.01922, -12.82999, 12.527606), (-10.01922, 12.82999, 12.527606), (10.01922, 12.82999, 12.527606)]
+            color3f[] primvars:displayColor = [(0.105882354, 0.69411767, 0.5803922)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_Material__36" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+                rel material:binding = </subset_crash/Materials/Material__36>
+            }
+
+            def GeomSubset "_2_Material__36" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+                rel material:binding = </subset_crash/Materials/Material__36>
+            }
+
+            def GeomSubset "_3_Material__36" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+                rel material:binding = </subset_crash/Materials/Material__36>
+            }
+
+            def GeomSubset "_4_Material__36" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+                rel material:binding = </subset_crash/Materials/Material__36>
+            }
+
+            def GeomSubset "_5_Material__37" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+                rel material:binding = </subset_crash/Materials/Material__37>
+            }
+
+            def GeomSubset "_6_Material__37" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+                rel material:binding = </subset_crash/Materials/Material__37>
+            }
+        }
+    }
+
+    def Xform "Box002" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (73.7219, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box003" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (30.9437, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box004" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.8345, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box005" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-54.6126, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box006" (
+        prepend inherits = </subset_crash/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-97.3908, -8.56266, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__37"
+        {
+            token outputs:surface.connect = </subset_crash/Materials/Material__37/Material__37.outputs:surface>
+
+            def Shader "Material__37"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.972549, 0, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__36"
+        {
+            token outputs:surface.connect = </subset_crash/Materials/Material__36/Material__36.outputs:surface>
+
+            def Shader "Material__36"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_animated_point_instancer.usda b/src/Tests/Integration/data/consolidation_animated_point_instancer.usda
new file mode 100644
index 0000000..adc1de9
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_animated_point_instancer.usda
@@ -0,0 +1,47 @@
+#usda 1.0
+(
+    startTimeCode = 0
+    endTimeCode = 1
+)
+
+def Xform "ProtoRed" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(1,0,0)]
+    }
+    token visibility = "invisible"
+}
+
+def Xform "ProtoGreen" () {
+    def Cone "cone" () {
+        ColorFloat[] primvars:displayColor = [(0,1,0)]
+    }
+    token visibility = "invisible"
+}
+
+def PointInstancer "Instancer" {
+    int[] protoIndices.timeSamples = {
+		0:[ 0, 1, 1 ],
+		1:[ 0, 1, 1 ],
+		2:[ 0, 1, 1, 1, 0]
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+    PointFloat[] positions.timeSamples = {
+		0:[ (0,0,0), (0,2.5,0), (2.5,2.5,2.5) ],
+		1:[ (0,0,1), (0,2.5,1), (2.5,2.5,10.5) ],
+		2:[ (0,0,1), (0,2.5,1), (2.5,2.5,10.5),(5,5,5),(10,10,10)]
+	}
+
+    def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/consolidation_instance_subset_mixed.usda b/src/Tests/Integration/data/consolidation_instance_subset_mixed.usda
new file mode 100644
index 0000000..083a7b6
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_instance_subset_mixed.usda
@@ -0,0 +1,269 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.24.0"
+    }
+    defaultPrim = "mixed"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "mixed"
+{
+    def Xform "Box003" (
+        prepend inherits = </mixed/_class_Box003>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (20.5861, -30.4341, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box003"
+    {
+        def Mesh "Box003"
+        {
+            float3[] extent = [(-19.285103, -24.491625, 0), (19.285103, 24.491625, 15.988516)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-19.285103, -24.491625, 0), (19.285103, -24.491625, 0), (-19.285103, 24.491625, 0), (19.285103, 24.491625, 0), (-19.285103, -24.491625, 15.988516), (19.285103, -24.491625, 15.988516), (-19.285103, 24.491625, 15.988516), (19.285103, 24.491625, 15.988516)]
+            color3f[] primvars:displayColor = [(0.03137255, 0.43137255, 0.5294118)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_Material__76" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+                rel material:binding = </mixed/Materials/Material__76>
+            }
+
+            def GeomSubset "_2_Material__77" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+                rel material:binding = </mixed/Materials/Material__77>
+            }
+
+            def GeomSubset "_3_Material__77" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+                rel material:binding = </mixed/Materials/Material__77>
+            }
+
+            def GeomSubset "_4_Material__77" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+                rel material:binding = </mixed/Materials/Material__77>
+            }
+
+            def GeomSubset "_5_Material__76" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+                rel material:binding = </mixed/Materials/Material__76>
+            }
+
+            def GeomSubset "_6_Material__77" (
+                prepend apiSchemas = ["MaterialBindingAPI"]
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+                rel material:binding = </mixed/Materials/Material__77>
+            }
+        }
+    }
+
+    def Mesh "Plane001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-30.9691, -26.202293, 0), (30.9691, 26.202293, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        rel material:binding = </mixed/Materials/Material__76>
+        point3f[] points = [(-30.9691, -26.202293, 0), (0, -26.202293, 0), (30.9691, -26.202293, 0), (-30.9691, 0, 0), (0, 0, 0), (30.9691, 0, 0), (-30.9691, 26.202293, 0), (0, 26.202293, 0), (30.9691, 26.202293, 0)]
+        color3f[] primvars:displayColor = [(0.6901961, 0.101960786, 0.101960786)]
+        texCoord2f[] primvars:map1 = [(0, 0), (0.5, 0), (1, 0), (0, 0.5), (0.5, 0.5), (1, 0.5), (0, 1), (0.5, 1), (1, 1)] (
+            interpolation = "vertex"
+        )
+        float3[] primvars:normals = [(0, 0, 1)] (
+            interpolation = "constant"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-49.7807, 108.211, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Mesh "Plane002" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-10.216873, -14.735613, 0), (10.216873, 14.735613, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        rel material:binding = </mixed/Materials/Material__76>
+        point3f[] points = [(-10.216873, -14.735613, 0), (0, -14.735613, 0), (10.216873, -14.735613, 0), (-10.216873, 0, 0), (0, 0, 0), (10.216873, 0, 0), (-10.216873, 14.735613, 0), (0, 14.735613, 0), (10.216873, 14.735613, 0)]
+        color3f[] primvars:displayColor = [(0.6509804, 0.8980392, 0.8980392)]
+        texCoord2f[] primvars:map1 = [(0, 0), (0.5, 0), (1, 0), (0, 0.5), (0.5, 0.5), (1, 0.5), (0, 1), (0.5, 1), (1, 1)] (
+            interpolation = "vertex"
+        )
+        float3[] primvars:normals = [(0, 0, 1)] (
+            interpolation = "constant"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-158.904, -6.72655, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Mesh "Plane004" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-23.074131, -19.23476, 0), (23.074131, 19.23476, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        rel material:binding = </mixed/Materials/Material__77>
+        point3f[] points = [(-23.074131, -19.23476, 0), (0, -19.23476, 0), (23.074131, -19.23476, 0), (-23.074131, 0, 0), (0, 0, 0), (23.074131, 0, 0), (-23.074131, 19.23476, 0), (0, 19.23476, 0), (23.074131, 19.23476, 0)]
+        color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.7764706)]
+        texCoord2f[] primvars:map1 = [(0, 0), (0.5, 0), (1, 0), (0, 0.5), (0.5, 0.5), (1, 0.5), (0, 1), (0.5, 1), (1, 1)] (
+            interpolation = "vertex"
+        )
+        float3[] primvars:normals = [(0, 0, 1)] (
+            interpolation = "constant"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (88.9606, 14.7531, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box004" (
+        prepend inherits = </mixed/_class_Box003>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-47.4909, -30.4341, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box005" (
+        prepend inherits = </mixed/_class_Box003>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-115.568, -30.4341, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__77"
+        {
+            token outputs:surface.connect = </mixed/Materials/Material__77/Material__77.outputs:surface>
+
+            def Shader "Material__77"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__76"
+        {
+            token outputs:surface.connect = </mixed/Materials/Material__76/Material__76.outputs:surface>
+
+            def Shader "Material__76"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (1, 0.5019608, 0.5019608)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/consolidation_subset_crash.usdc b/src/Tests/Integration/data/consolidation_subset_crash.usdc
new file mode 100644
index 0000000..9c17edd
--- /dev/null
+++ b/src/Tests/Integration/data/consolidation_subset_crash.usdc
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:85227923df95a55e2eaf67d016432166b1b91976b615a4de6e97cb0deedb1c37
+size 36671361
diff --git a/src/Tests/Integration/data/cube_anim.abc b/src/Tests/Integration/data/cube_anim.abc
new file mode 100644
index 0000000..08b0cde
Binary files /dev/null and b/src/Tests/Integration/data/cube_anim.abc differ
diff --git a/src/Tests/Integration/data/cube_displayColor_face_varying.usda b/src/Tests/Integration/data/cube_displayColor_face_varying.usda
new file mode 100644
index 0000000..92aeb5b
--- /dev/null
+++ b/src/Tests/Integration/data/cube_displayColor_face_varying.usda
@@ -0,0 +1,28 @@
+#usda 1.0
+(
+    defaultPrim = "cube_displayColor_face_varying"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_displayColor_face_varying"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+
+        color3f[] primvars:displayColor (
+            interpolation = "faceVarying"
+        )
+        
+        color3f[] primvars:displayColor.timeSamples = {
+            0 : [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            1 : [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0)]
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/cube_displayColor_uniform.usda b/src/Tests/Integration/data/cube_displayColor_uniform.usda
new file mode 100644
index 0000000..cef0e7d
--- /dev/null
+++ b/src/Tests/Integration/data/cube_displayColor_uniform.usda
@@ -0,0 +1,29 @@
+#usda 1.0
+(
+    defaultPrim = "cube_displayColor_uniform"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_displayColor_uniform"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+
+        float3[] primvars:displayColor (
+            interpolation = "uniform"
+        )
+        
+        float3[] primvars:displayColor.timeSamples = {
+          0 : [(0, 0, -1), (0, 0, 1), (0, -1, 0), (1, 0, 0), (0, 1, 0), (-1, 0, 0)],
+          1 : [(0, 0, 1), (0, 0, -1), (0, 1, 0), (-1, 0, 0), (0, -1, 0), (1, 0, 0)]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/cube_native.usda b/src/Tests/Integration/data/cube_native.usda
new file mode 100644
index 0000000..21b962d
--- /dev/null
+++ b/src/Tests/Integration/data/cube_native.usda
@@ -0,0 +1,8 @@
+#usda 1.0
+(
+    upAxis = "Z"
+	metersPerUnit = 0.001
+)
+def Cube "box" {
+    double size = 4.0
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/cube_normals_face_varying.usda b/src/Tests/Integration/data/cube_normals_face_varying.usda
new file mode 100644
index 0000000..3d7e685
--- /dev/null
+++ b/src/Tests/Integration/data/cube_normals_face_varying.usda
@@ -0,0 +1,32 @@
+#usda 1.0
+(
+    defaultPrim = "cube_normals_face_varying"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_normals_face_varying"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.7254902, 0.8980392)]
+
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        
+        float3[] primvars:normals.timeSamples = {
+            0 : [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            1 : [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0)]
+        }
+        
+        
+        uniform token subdivisionScheme = "none"
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/cube_normals_uniform.usda b/src/Tests/Integration/data/cube_normals_uniform.usda
new file mode 100644
index 0000000..3acfed2
--- /dev/null
+++ b/src/Tests/Integration/data/cube_normals_uniform.usda
@@ -0,0 +1,31 @@
+#usda 1.0
+(
+    defaultPrim = "cube_normals_uniform"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_normals_uniform"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.42352942, 0.03137255, 0.53333336)]
+        float3[] primvars:normals (
+            interpolation = "uniform"
+        )
+        
+        float3[] primvars:normals.timeSamples = {
+          0 : [(0, 0, -1), (0, 0, 1), (0, -1, 0), (1, 0, 0), (0, 1, 0), (-1, 0, 0)],
+          1 : [(0, 0, 1), (0, 0, -1), (0, 1, 0), (-1, 0, 0), (0, -1, 0), (1, 0, 0)]
+        }
+        
+        uniform token subdivisionScheme = "none"
+    }
+}
+
diff --git a/src/Tests/Integration/data/cube_scale_up_animation.usda b/src/Tests/Integration/data/cube_scale_up_animation.usda
new file mode 100644
index 0000000..6dcec29
--- /dev/null
+++ b/src/Tests/Integration/data/cube_scale_up_animation.usda
@@ -0,0 +1,446 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.3.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 100
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Mesh "Box001"
+{
+    float3[] extent.timeSamples = {
+        0: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.180273)],
+        1: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.209326)],
+        2: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.294916)],
+        3: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.434689)],
+        4: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.626284)],
+        5: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 16.86735)],
+        6: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 17.155529)],
+        7: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 17.488468)],
+        8: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 17.863808)],
+        9: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 18.279196)],
+        10: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 18.732273)],
+        11: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 19.220688)],
+        12: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 19.74208)],
+        13: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 20.294098)],
+        14: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 20.874384)],
+        15: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 21.480581)],
+        16: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 22.110338)],
+        17: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 22.761295)],
+        18: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 23.431095)],
+        19: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 24.117388)],
+        20: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 24.817816)],
+        21: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 25.530018)],
+        22: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 26.251646)],
+        23: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 26.980341)],
+        24: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 27.713747)],
+        25: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 28.449509)],
+        26: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 29.185268)],
+        27: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 29.918676)],
+        28: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 30.64737)],
+        29: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 31.368996)],
+        30: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 32.0812)],
+        31: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 32.781628)],
+        32: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 33.46792)],
+        33: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 34.137722)],
+        34: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 34.788677)],
+        35: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 35.41843)],
+        36: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 36.02463)],
+        37: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 36.60492)],
+        38: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 37.156937)],
+        39: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 37.67833)],
+        40: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 38.166744)],
+        41: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 38.61982)],
+        42: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 39.035206)],
+        43: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 39.41055)],
+        44: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 39.743484)],
+        45: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.031666)],
+        46: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.27273)],
+        47: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.46433)],
+        48: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.6041)],
+        49: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.689686)],
+        50: [(-14.305228, -18.824951, 0), (14.305228, 18.824951, 40.718742)],
+    }
+    int[] faceVertexCounts.timeSamples = {
+        0: [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3],
+    }
+    int[] faceVertexIndices.timeSamples = {
+        0: [0, 2, 3, 3, 1, 0, 4, 5, 7, 7, 6, 4, 0, 1, 5, 5, 4, 0, 1, 3, 7, 7, 5, 1, 3, 2, 6, 6, 7, 3, 2, 0, 4, 4, 6, 2],
+    }
+    point3f[] points.timeSamples = {
+        0: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.180273), (14.305228, -18.824951, 16.180273), (-14.305228, 18.824951, 16.180273), (14.305228, 18.824951, 16.180273)],
+        1: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.209326), (14.305228, -18.824951, 16.209326), (-14.305228, 18.824951, 16.209326), (14.305228, 18.824951, 16.209326)],
+        2: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.294916), (14.305228, -18.824951, 16.294916), (-14.305228, 18.824951, 16.294916), (14.305228, 18.824951, 16.294916)],
+        3: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.434689), (14.305228, -18.824951, 16.434689), (-14.305228, 18.824951, 16.434689), (14.305228, 18.824951, 16.434689)],
+        4: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.626284), (14.305228, -18.824951, 16.626284), (-14.305228, 18.824951, 16.626284), (14.305228, 18.824951, 16.626284)],
+        5: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 16.86735), (14.305228, -18.824951, 16.86735), (-14.305228, 18.824951, 16.86735), (14.305228, 18.824951, 16.86735)],
+        6: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 17.155529), (14.305228, -18.824951, 17.155529), (-14.305228, 18.824951, 17.155529), (14.305228, 18.824951, 17.155529)],
+        7: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 17.488468), (14.305228, -18.824951, 17.488468), (-14.305228, 18.824951, 17.488468), (14.305228, 18.824951, 17.488468)],
+        8: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 17.863808), (14.305228, -18.824951, 17.863808), (-14.305228, 18.824951, 17.863808), (14.305228, 18.824951, 17.863808)],
+        9: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 18.279196), (14.305228, -18.824951, 18.279196), (-14.305228, 18.824951, 18.279196), (14.305228, 18.824951, 18.279196)],
+        10: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 18.732273), (14.305228, -18.824951, 18.732273), (-14.305228, 18.824951, 18.732273), (14.305228, 18.824951, 18.732273)],
+        11: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 19.220688), (14.305228, -18.824951, 19.220688), (-14.305228, 18.824951, 19.220688), (14.305228, 18.824951, 19.220688)],
+        12: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 19.74208), (14.305228, -18.824951, 19.74208), (-14.305228, 18.824951, 19.74208), (14.305228, 18.824951, 19.74208)],
+        13: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 20.294098), (14.305228, -18.824951, 20.294098), (-14.305228, 18.824951, 20.294098), (14.305228, 18.824951, 20.294098)],
+        14: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 20.874384), (14.305228, -18.824951, 20.874384), (-14.305228, 18.824951, 20.874384), (14.305228, 18.824951, 20.874384)],
+        15: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 21.480581), (14.305228, -18.824951, 21.480581), (-14.305228, 18.824951, 21.480581), (14.305228, 18.824951, 21.480581)],
+        16: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 22.110338), (14.305228, -18.824951, 22.110338), (-14.305228, 18.824951, 22.110338), (14.305228, 18.824951, 22.110338)],
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+        20: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 24.817816), (14.305228, -18.824951, 24.817816), (-14.305228, 18.824951, 24.817816), (14.305228, 18.824951, 24.817816)],
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+        23: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 26.980341), (14.305228, -18.824951, 26.980341), (-14.305228, 18.824951, 26.980341), (14.305228, 18.824951, 26.980341)],
+        24: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 27.713747), (14.305228, -18.824951, 27.713747), (-14.305228, 18.824951, 27.713747), (14.305228, 18.824951, 27.713747)],
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+        26: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 29.185268), (14.305228, -18.824951, 29.185268), (-14.305228, 18.824951, 29.185268), (14.305228, 18.824951, 29.185268)],
+        27: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 29.918676), (14.305228, -18.824951, 29.918676), (-14.305228, 18.824951, 29.918676), (14.305228, 18.824951, 29.918676)],
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+        32: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 33.46792), (14.305228, -18.824951, 33.46792), (-14.305228, 18.824951, 33.46792), (14.305228, 18.824951, 33.46792)],
+        33: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 34.137722), (14.305228, -18.824951, 34.137722), (-14.305228, 18.824951, 34.137722), (14.305228, 18.824951, 34.137722)],
+        34: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 34.788677), (14.305228, -18.824951, 34.788677), (-14.305228, 18.824951, 34.788677), (14.305228, 18.824951, 34.788677)],
+        35: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 35.41843), (14.305228, -18.824951, 35.41843), (-14.305228, 18.824951, 35.41843), (14.305228, 18.824951, 35.41843)],
+        36: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 36.02463), (14.305228, -18.824951, 36.02463), (-14.305228, 18.824951, 36.02463), (14.305228, 18.824951, 36.02463)],
+        37: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 36.60492), (14.305228, -18.824951, 36.60492), (-14.305228, 18.824951, 36.60492), (14.305228, 18.824951, 36.60492)],
+        38: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 37.156937), (14.305228, -18.824951, 37.156937), (-14.305228, 18.824951, 37.156937), (14.305228, 18.824951, 37.156937)],
+        39: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 37.67833), (14.305228, -18.824951, 37.67833), (-14.305228, 18.824951, 37.67833), (14.305228, 18.824951, 37.67833)],
+        40: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 38.166744), (14.305228, -18.824951, 38.166744), (-14.305228, 18.824951, 38.166744), (14.305228, 18.824951, 38.166744)],
+        41: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 38.61982), (14.305228, -18.824951, 38.61982), (-14.305228, 18.824951, 38.61982), (14.305228, 18.824951, 38.61982)],
+        42: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 39.035206), (14.305228, -18.824951, 39.035206), (-14.305228, 18.824951, 39.035206), (14.305228, 18.824951, 39.035206)],
+        43: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 39.41055), (14.305228, -18.824951, 39.41055), (-14.305228, 18.824951, 39.41055), (14.305228, 18.824951, 39.41055)],
+        44: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 39.743484), (14.305228, -18.824951, 39.743484), (-14.305228, 18.824951, 39.743484), (14.305228, 18.824951, 39.743484)],
+        45: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.031666), (14.305228, -18.824951, 40.031666), (-14.305228, 18.824951, 40.031666), (14.305228, 18.824951, 40.031666)],
+        46: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.27273), (14.305228, -18.824951, 40.27273), (-14.305228, 18.824951, 40.27273), (14.305228, 18.824951, 40.27273)],
+        47: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.46433), (14.305228, -18.824951, 40.46433), (-14.305228, 18.824951, 40.46433), (14.305228, 18.824951, 40.46433)],
+        48: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.6041), (14.305228, -18.824951, 40.6041), (-14.305228, 18.824951, 40.6041), (14.305228, 18.824951, 40.6041)],
+        49: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.689686), (14.305228, -18.824951, 40.689686), (-14.305228, 18.824951, 40.689686), (14.305228, 18.824951, 40.689686)],
+        50: [(-14.305228, -18.824951, 0), (14.305228, -18.824951, 0), (-14.305228, 18.824951, 0), (14.305228, 18.824951, 0), (-14.305228, -18.824951, 40.718742), (14.305228, -18.824951, 40.718742), (-14.305228, 18.824951, 40.718742), (14.305228, 18.824951, 40.718742)],
+    }
+    color3f[] primvars:displayColor = [(0.6, 0.89411765, 0.72156864)]
+    float3[] primvars:normals (
+        interpolation = "faceVarying"
+    )
+    float3[] primvars:normals.timeSamples = {
+        0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        1: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        2: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        3: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
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+        8: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        9: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        10: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        11: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
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+        14: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        15: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        16: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        17: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        18: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        19: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        20: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        21: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        22: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        23: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        24: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        25: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        26: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        27: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        28: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        29: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        30: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        31: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        32: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        33: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        34: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        35: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        36: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        37: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        38: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        39: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        40: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        41: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        42: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -0.99999994, 0), (0, -1, 0), (0, -0.99999994, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 0.99999994, 0), (0, 1, 0), (0, 0.99999994, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        43: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        44: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        45: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        46: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        47: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        48: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0.99999994, 0, 0), (1, 0, 0), (0.99999994, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-0.99999994, 0, 0), (-1, 0, 0), (-0.99999994, 0, 0), (-1, 0, 0)],
+        49: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        50: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+    }
+    int[] primvars:normals:indices.timeSamples = {
+        0: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        1: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        2: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        3: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        4: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        5: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        6: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        7: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        8: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        9: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        10: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        11: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        12: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        13: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        14: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        15: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        16: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        17: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        18: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        19: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        20: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        21: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        22: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        23: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        24: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        25: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        26: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        27: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        28: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        29: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        30: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        31: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        32: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        33: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        34: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        35: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        36: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        37: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        38: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        39: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        40: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        41: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        42: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        43: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        44: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        45: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        46: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        47: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        48: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        49: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+        50: [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20],
+    }
+    texCoord2f[] primvars:st (
+        interpolation = "faceVarying"
+    )
+    texCoord2f[] primvars:st.timeSamples = {
+        0: [(0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+    }
+    int[] primvars:st:indices.timeSamples = {
+        0: [21, 23, 22, 22, 20, 21, 16, 17, 19, 19, 18, 16, 12, 13, 15, 15, 14, 12, 0, 1, 3, 3, 2, 0, 8, 9, 11, 11, 10, 8, 4, 5, 7, 7, 6, 4],
+    }
+    uniform token subdivisionScheme = "none"
+    uniform token subsetFamily:materialBind:familyType = "partition"
+    matrix4d xformOp:transform.timeSamples = {
+        0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        11: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        12: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        13: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        14: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        15: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        16: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        17: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        18: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        19: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        20: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        21: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        22: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        23: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        24: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        25: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        26: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        27: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        28: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        29: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        30: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        31: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        32: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        33: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        34: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        35: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        36: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        37: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        38: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        39: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        40: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        41: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        42: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        43: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        44: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        45: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        46: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        47: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        48: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        49: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        50: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        51: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        52: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        53: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        54: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        55: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        56: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        57: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        58: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        59: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        60: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        61: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        62: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        63: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        64: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        65: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        66: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        67: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        68: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        69: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        70: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        71: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        72: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        73: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        74: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        75: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        76: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        77: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        78: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        79: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        80: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        81: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        82: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        83: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        84: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        85: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        86: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        87: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        88: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        89: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        90: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        91: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        92: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        93: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        94: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        95: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        96: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        97: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        98: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        99: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+        100: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-11.2815, 0.706794, 0, 1) ),
+    }
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+
+    def GeomSubset "_1_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [2, 3],
+        }
+    }
+
+    def GeomSubset "_2_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [0, 1],
+        }
+    }
+
+    def GeomSubset "_3_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 3
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [10, 11],
+        }
+    }
+
+    def GeomSubset "_4_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 4
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [6, 7],
+        }
+    }
+
+    def GeomSubset "_5_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 5
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [4, 5],
+        }
+    }
+
+    def GeomSubset "_6_" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 6
+            }
+        }
+    )
+    {
+        uniform token elementType = "face"
+        uniform token familyName = "materialBind"
+        int[] indices.timeSamples = {
+            0: [8, 9],
+        }
+    }
+}
+
+
diff --git a/src/Tests/Integration/data/cube_uv_face_varying.usda b/src/Tests/Integration/data/cube_uv_face_varying.usda
new file mode 100644
index 0000000..ba521c5
--- /dev/null
+++ b/src/Tests/Integration/data/cube_uv_face_varying.usda
@@ -0,0 +1,81 @@
+#usda 1.0
+(
+    defaultPrim = "cube_uv_face_varying"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_uv_face_varying"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.7254902, 0.8980392)]
+
+        texCoord2f[] primvars:map1 (
+            interpolation = "faceVarying"
+        )
+        
+        texCoord2f[] primvars:map1.timeSamples = {
+            0 : [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)],
+            1 : [(0, 1), (0, 0), (1, 0), (1, 1), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0)]
+        }
+        
+        rel material:binding = </cube_uv_face_varying/Materials/Material__25>
+    }
+    
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </cube_uv_face_varying/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </cube_uv_face_varying/Materials/Map__1.outputs:rgb>
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </cube_uv_face_varying/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </cube_uv_face_varying/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </cube_uv_face_varying/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/cube_uv_uniform.usda b/src/Tests/Integration/data/cube_uv_uniform.usda
new file mode 100644
index 0000000..15bcfe7
--- /dev/null
+++ b/src/Tests/Integration/data/cube_uv_uniform.usda
@@ -0,0 +1,81 @@
+#usda 1.0
+(
+    defaultPrim = "cube_uv_uniform"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "cube_uv_uniform"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.7254902, 0.8980392)]
+
+        texCoord2f[] primvars:map1 (
+            interpolation = "uniform"
+        )
+        
+        texCoord2f[] primvars:map1.timeSamples = {
+            0 : [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0)],
+            1 : [(0, 1), (0, 0), (1, 0), (1, 1), (1, 1), (0, 1)]
+        }
+        
+        rel material:binding = </cube_uv_uniform/Materials/Material__25>
+    }
+    
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </cube_uv_uniform/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </cube_uv_uniform/Materials/Map__1.outputs:rgb>
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </cube_uv_uniform/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </cube_uv_uniform/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </cube_uv_uniform/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/fabric_bump.jpg b/src/Tests/Integration/data/fabric_bump.jpg
new file mode 100644
index 0000000..d858f84
Binary files /dev/null and b/src/Tests/Integration/data/fabric_bump.jpg differ
diff --git a/src/Tests/Integration/data/fabric_normal.png b/src/Tests/Integration/data/fabric_normal.png
new file mode 100644
index 0000000..4c6624e
--- /dev/null
+++ b/src/Tests/Integration/data/fabric_normal.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:50af83e73eb50a8d36133cc16f0c931d3b1d4477c0b09eaa8c19a67ea414424a
+size 5381348
diff --git a/src/Tests/Integration/data/geomSubsets_remaining_faces_sample.usda b/src/Tests/Integration/data/geomSubsets_remaining_faces_sample.usda
new file mode 100644
index 0000000..70bcc29
--- /dev/null
+++ b/src/Tests/Integration/data/geomSubsets_remaining_faces_sample.usda
@@ -0,0 +1,107 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "geomSubsets_remaining_faces_sample"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "geomSubsets_remaining_faces_sample"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.56078434)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-1.80633, -2.34419, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__38" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+            rel material:binding = </geomSubsets_remaining_faces_sample/Materials/Material__38>
+        }
+
+    }
+
+    def "Materials"
+    {
+        def Material "Material__38"
+        {
+            token outputs:surface.connect = </geomSubsets_remaining_faces_sample/Materials/Material__38/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__43"
+        {
+            token outputs:surface.connect = </geomSubsets_remaining_faces_sample/Materials/Material__43/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.41960785, 1, 0.03529412)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__41"
+        {
+            token outputs:surface.connect = </geomSubsets_remaining_faces_sample/Materials/Material__41/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.3647059, 0.21176471, 0.047058824)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/import_udim_test_data/max-osl-uber-bitmap-udims-plane.usda b/src/Tests/Integration/data/import_udim_test_data/max-osl-uber-bitmap-udims-plane.usda
new file mode 100644
index 0000000..cb0d65b
--- /dev/null
+++ b/src/Tests/Integration/data/import_udim_test_data/max-osl-uber-bitmap-udims-plane.usda
@@ -0,0 +1,105 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.0.0.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Plane001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-50, -10, 0), (50, 10, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [11, 0, 1, 12, 12, 1, 2, 13, 13, 2, 3, 14, 14, 3, 4, 15, 15, 4, 5, 16, 16, 5, 6, 17, 17, 6, 7, 18, 18, 7, 8, 19, 19, 8, 9, 20, 20, 9, 10, 21, 22, 11, 12, 23, 23, 12, 13, 24, 24, 13, 14, 25, 25, 14, 15, 26, 26, 15, 16, 27, 27, 16, 17, 28, 28, 17, 18, 29, 29, 18, 19, 30, 30, 19, 20, 31, 31, 20, 21, 32]
+        rel material:binding = </root/mtl/Material__25>
+        point3f[] points = [(-50, -10, 0), (-40, -10, 0), (-30, -10, 0), (-20, -10, 0), (-10, -10, 0), (0, -10, 0), (10, -10, 0), (20, -10, 0), (30, -10, 0), (40, -10, 0), (50, -10, 0), (-50, 0, 0), (-40, 0, 0), (-30, 0, 0), (-20, 0, 0), (-10, 0, 0), (0, 0, 0), (10, 0, 0), (20, 0, 0), (30, 0, 0), (40, 0, 0), (50, 0, 0), (-50, 10, 0), (-40, 10, 0), (-30, 10, 0), (-20, 10, 0), (-10, 10, 0), (0, 10, 0), (10, 10, 0), (20, 10, 0), (30, 10, 0), (40, 10, 0), (50, 10, 0)]
+        color3f[] primvars:displayColor = [(0.23921569, 0.5294118, 0.023529412)]
+        float3[] primvars:normals = [(0, 0, 1)] (
+            interpolation = "constant"
+        )
+        texCoord2f[] primvars:st = [(0.028205112, 0.019980505), (1.0223029, 0.019980505), (2.0164015, 0.019980505), (3.0104988, 0.019980505), (4.004596, 0.019980505), (4.9986944, 0.019980505), (5.992793, 0.019980505), (6.9868903, 0.019980505), (7.9809885, 0.019980505), (8.975087, 0.019980505), (9.969184, 0.019980505), (0.028205112, 0.97818905), (1.0223029, 0.97818905), (2.0164015, 0.97818905), (3.0104988, 0.97818905), (4.004596, 0.97818905), (4.9986944, 0.97818905), (5.992793, 0.97818905), (6.9868903, 0.97818905), (7.9809885, 0.97818905), (8.975087, 0.97818905), (9.969184, 0.97818905), (0.028205112, 1.9363973), (1.0223029, 1.9363973), (2.0164015, 1.9363973), (3.0104988, 1.9363973), (4.004596, 1.9363973), (4.9986944, 1.9363973), (5.992793, 1.9363973), (6.9868903, 1.9363973), (7.9809885, 1.9363973), (8.975087, 1.9363973), (9.969184, 1.9363973)] (
+            interpolation = "vertex"
+        )
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, -1.62921e-7, 1, 0), (0, -1, -1.62921e-7, 0), (-0.526876, -4.5555e-7, 10.4218, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "mtl"
+    {
+        def Material "Material__25"
+        {
+            token outputs:surface.connect = </root/mtl/Material__25/Material__25.outputs:surface>
+
+            def Shader "Material__25"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </root/mtl/Material__25/Map__3.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+
+            def NodeGraph "Map__3" (
+                prepend references = </root/mtl/Map__3>
+            )
+            {
+            }
+        }
+
+        def NodeGraph "Map__3"
+        {
+            token inputs:frame:st = "st"
+            float3 outputs:rgb.connect = </root/mtl/Map__3/Map__3.outputs:rgb>
+
+            def Shader "Map__3"
+            {
+                uniform token info:id = "UsdUVTexture"
+                asset inputs:file = @./data/import_udim_test_data/testUsdImagingGLUsdUdims/texture_<UDIM>.jpg@
+                token inputs:sourceColorSpace = "raw"
+                float2 inputs:st.connect = </root/mtl/Map__3/TextureTransform_st.outputs:result>
+                token inputs:wrapS = "repeat"
+                token inputs:wrapT = "repeat"
+                float3 outputs:rgb
+            }
+
+            def Shader "PrimvarReader_st"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </root/mtl/Map__3.inputs:frame:st>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_st"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </root/mtl/Map__3/PrimvarReader_st.outputs:result>
+                float2 inputs:scale = (1, 1)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/import_udim_test_data/testUsdImagingGLUsdUdims/image_a.jpg b/src/Tests/Integration/data/import_udim_test_data/testUsdImagingGLUsdUdims/image_a.jpg
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diff --git a/src/Tests/Integration/data/import_udim_test_data/testUsdImagingGLUsdUdims/texture_1011.jpg b/src/Tests/Integration/data/import_udim_test_data/testUsdImagingGLUsdUdims/texture_1011.jpg
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diff --git a/src/Tests/Integration/data/instance_deactivate_crash.usda b/src/Tests/Integration/data/instance_deactivate_crash.usda
new file mode 100644
index 0000000..3b18f6c
--- /dev/null
+++ b/src/Tests/Integration/data/instance_deactivate_crash.usda
@@ -0,0 +1,224 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.3.3.1"
+    }
+    defaultPrim = "root"
+    doc = """Generated from Composed Stage of root layer c:\\Users\\deboisj\\Downloads\\certest\\certest_333976464.usda
+"""
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+over "Flattened_Prototype_1"
+{
+    def Mesh "Teapot001_Proxy" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-16.935175, -11.313822, 0.13054408), (20.147305, 11.313822, 18.015081)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [37, 26, 68, 51, 81, 25, 46, 82, 41, 71, 72, 26, 10, 70, 4, 85, 74, 29, 20, 11, 71, 63, 36, 51, 6, 78, 15, 8, 79, 7, 7, 80, 6, 10, 2, 70, 84, 67, 13, 29, 40, 76, 36, 63, 48, 20, 5, 61, 61, 37, 52, 40, 29, 74, 14, 32, 0, 15, 77, 8, 65, 16, 53, 43, 39, 19, 16, 17, 18, 66, 43, 19, 48, 20, 13, 4, 44, 85, 41, 25, 81, 60, 59, 58, 22, 47, 33, 54, 73, 63, 25, 41, 82, 0, 68, 26, 40, 64, 30, 27, 42, 50, 28, 56, 9, 76, 69, 29, 41, 62, 46, 11, 3, 76, 72, 30, 64, 2, 10, 31, 67, 51, 36, 70, 2, 32, 68, 52, 37, 59, 60, 23, 55, 22, 33, 75, 47, 83, 83, 58, 75, 78, 6, 80, 35, 50, 42, 79, 8, 77, 9, 49, 28, 13, 36, 48, 36, 13, 67, 26, 37, 71, 37, 61, 5, 38, 23, 60, 55, 38, 22, 17, 16, 39, 16, 17, 66, 74, 0, 40, 64, 40, 0, 81, 21, 41, 62, 41, 21, 42, 27, 28, 42, 28, 35, 39, 43, 17, 43, 66, 17, 0, 74, 14, 44, 4, 70, 10, 4, 45, 21, 81, 4, 69, 46, 62, 3, 12, 46, 47, 24, 33, 34, 24, 47, 73, 48, 63, 20, 48, 1, 77, 15, 78, 49, 35, 28, 80, 7, 79, 50, 9, 27, 10, 45, 51, 31, 10, 51, 2, 31, 84, 32, 2, 52, 18, 53, 16, 53, 18, 65, 73, 54, 12, 54, 46, 12, 23, 55, 33, 56, 27, 9, 27, 56, 28, 19, 57, 66, 19, 39, 57, 24, 34, 58, 24, 58, 33, 59, 23, 33, 59, 33, 58, 58, 83, 60, 60, 22, 38, 61, 13, 20, 13, 61, 84, 62, 29, 69, 29, 62, 85, 25, 63, 51, 63, 25, 54, 64, 26, 72, 26, 64, 0, 65, 18, 17, 17, 16, 65, 66, 39, 16, 39, 66, 57, 51, 67, 31, 67, 84, 31, 52, 68, 32, 68, 0, 32, 69, 76, 3, 46, 69, 3, 32, 14, 70, 44, 70, 14, 71, 5, 20, 5, 71, 37, 30, 72, 11, 72, 71, 11, 12, 1, 73, 48, 73, 1, 44, 14, 74, 74, 85, 44, 47, 75, 34, 75, 58, 34, 30, 76, 40, 76, 30, 11, 35, 49, 77, 79, 77, 49, 77, 78, 35, 50, 35, 78, 49, 9, 79, 80, 79, 9, 9, 50, 80, 78, 80, 50, 81, 51, 45, 45, 4, 81, 46, 54, 82, 82, 54, 25, 22, 60, 83, 83, 47, 22, 52, 84, 61, 84, 52, 2, 21, 85, 62, 85, 21, 4]
+        point3f[] points = [(5.583257, -9.5061865, 3.0677857), (-4.179151, 7.1155233, 14.0987625), (7.5620084, 4.4413843, 0.66291916), (-4.4141307, -7.1155224, 14.098761), (-8.432804, -2.346941, 0.66291916), (7.4537697, 4.377813, 14.420023), (3.8806405, -6.607271, 14.0987625), (6.607271, 3.8806405, 14.0987625), (-3.8806405, 6.607271, 14.0987625), (0.51170063, 0.87079746, 16.362885), (-4.4413843, 7.5620084, 0.66291916), (7.1155224, -4.179151, 14.098761), (-7.9349046, 2.2083707, 14.098761), (5.749097, 9.788549, 8.061096), (2.346941, -8.432804, 0.66291916), (-6.607271, -3.8806405, 14.0987625), (-16.935175, -1.1748968, 11.5434065), (-16.935171, 1.1748967, 11.5434065), (-9.3556595, 0.7343103, 11.993737), (-11.596665, 1.1748968, 4.8301315), (4.179151, 7.1155224, 14.098761), (-9.5061865, -5.583257, 3.0677857), (13.743389, -2.168482, 8.660632), (9.986623, 2.584773, 4.7811766), (16.622614, 0.36715516, 14.0987625), (-9.788549, 5.749097, 8.061096), (9.788549, -5.749097, 8.061096), (2.13222, 0, 18.015081), (-2.13222, 0, 18.015081), (-5.749097, -9.788549, 8.061096), (4.377813, -7.4537697, 14.420023), (2.3469415, 8.432804, 0.6629191), (8.432804, -2.3469415, 0.6629191), (14.120519, 2.4395423, 7.9142346), (18.79835, 0, 14.0987625), (-0.51170063, -0.87079746, 16.362885), (0, 11.313822, 8.061097), (11.313822, 0, 8.061097), (9.986623, -2.584773, 7.114652), (-14.457759, -1.321759, 6.2987523), (0, -11.313822, 8.061097), (-11.313822, 0, 8.061097), (0, -2.13222, 18.015081), (-16.54364, 1.1748966, 8.244824), (-2.3469415, -8.432804, 0.6629191), (-8.432804, 2.3469415, 0.6629191), (-7.4543138, -4.377813, 14.420023), (16.122196, -0.6119254, 14.098761), (-2.3133483, 8.312102, 14.420023), (-0.87079746, 0.51170063, 16.362885), (0.87079746, -0.51170063, 16.362885), (-5.583257, 9.5061865, 3.0677857), (9.5061865, 5.583257, 3.0677857), (-8.964027, -1.1748968, 12.87491), (-8.312101, 2.3133488, 14.420023), (9.986623, 2.584773, 7.1146526), (1.0858045, 1.8459252, 18.01508), (-11.596665, -1.1748967, 4.8301306), (18.026302, 1.0688298, 14.30911), (14.787743, 1.3553015, 6.593684), (12.892134, -2.4658325, 5.666278), (9.788549, 5.749097, 8.061097), (-9.788549, -5.749097, 8.061097), (-5.749097, 9.788549, 8.061097), (5.749097, -9.788549, 8.061097), (-15.096877, 1.1748967, 12.587306), (-15.960375, -0.7343103, 6.8851805), (0, 10.987459, 3.0677857), (10.987459, 0, 3.0677857), (-2.3141987, -8.312101, 14.420023), (3.0514438, -5.1954613, 0.13054408), (8.61523, 0, 14.420023), (7.4537683, -4.377813, 14.420022), (-6.1168137, 6.1168137, 14.420023), (0, -10.987459, 3.0677857), (20.147305, 0, 14.490393), (0, -8.61523, 14.420023), (-1.0475519, 1.7835867, 15.485791), (-1.7835867, -1.0475519, 15.485791), (1.7835867, 1.0475519, 15.485791), (1.0475519, -1.7835867, 15.485791), (-10.987459, 0, 3.0677857), (-8.61523, 0, 14.420023), (16.790327, -1.0980207, 12.751317), (5.583257, 9.506186, 3.0677857), (-5.583257, -9.506186, 3.0677857)]
+        color3f[] primvars:displayColor = [(0.88235295, 0.34117648, 0.56078434)]
+        float3[] primvars:normals = [(0.5182533, -0.7462452, -0.4177696), (0.41827288, -0.73489994, 0.53382576), (0.4226268, 0.21943171, -0.87933856), (0.55509675, 0.75895786, -0.3403681), (-0.4391722, -0.15069664, -0.88567394), (0.46578634, 0.3308462, 0.8207215), (0.12187784, -0.20751224, 0.9706103), (0.20751224, 0.12187784, 0.9706103), (-0.12187784, 0.20751224, 0.9706103), (0.2258023, 0.9536706, -0.19881088), (-0.24009928, 0.41953513, -0.87540996), (-0.4359424, 0.25085562, 0.86430645), (0.5773629, -0.10639692, 0.80952567), (0.48482653, 0.8514443, 0.19996469), (0.1663186, -0.48372114, -0.8592741), (-0.20751224, -0.12187784, 0.9706103), (-0.60661143, -0.73606604, 0.30038226), (-0.7345122, 0.6758672, 0.060788758), (0.7989182, 0.54928064, -0.24499077), (0.75726897, 0.508477, -0.40987173), (0.34297615, 0.71643144, 0.60753065), (-0.7734828, -0.4766827, -0.41772947), (-0.20298088, -0.81467164, 0.54323936), (0.13116331, 0.5918016, -0.7953409), (-0.4348901, 0.3935244, 0.809944), (-0.8526711, 0.50952816, 0.11546869), (0.86346024, -0.49676594, 0.08752123), (0.9250917, -0.07324988, 0.37261215), (-0.9228568, 0.11086184, 0.3688428), (-0.5038823, -0.84273374, 0.1894793), (0.2904064, -0.4771427, 0.8294569), (0.107135065, 0.43973592, -0.89171433), (0.5450495, -0.20518605, -0.8129081), (0.10390498, 0.96500444, 0.24077013), (-0.21324547, 0.24192274, 0.9465726), (-0.36847296, -0.88739216, -0.27706105), (0.021253781, 0.9823217, 0.1859905), (0.9868984, -8.622661e-8, 0.16134252), (-0.5970309, -0.7840316, 0.1698487), (0.28791067, -0.92940426, -0.23090063), (-8.622661e-8, -0.9868985, 0.16134252), (-0.98690015, 0.0000090694275, 0.16133213), (0.0039055494, -0.92679846, 0.37553877), (-0.41927382, 0.88800824, -0.18881403), (-0.16733125, -0.453598, -0.87535655), (-0.5040631, 0.22210981, -0.83461833), (-0.44902286, -0.32707152, 0.83150625), (-0.50142705, -0.3805214, 0.77702916), (-0.100909695, 0.49038124, 0.86564624), (-0.86248046, 0.505691, -0.02009938), (0.88739216, -0.36847296, -0.27706105), (-0.49840385, 0.7674824, -0.40319276), (0.8044566, 0.44740877, -0.3907366), (0.81420916, -0.5189111, 0.260374), (-0.35520664, 0.17314492, 0.9186125), (-0.14806679, 0.78240275, 0.60491496), (0.29047927, 0.8873336, 0.35813555), (0.7506721, -0.54750973, -0.36976296), (0.5169404, 0.64945555, 0.5576559), (0.73398197, 0.2725093, -0.62210065), (0.2798851, -0.6867573, -0.67084175), (0.84903485, 0.499474, 0.17223708), (-0.8466006, -0.5024875, 0.1754247), (-0.5060748, 0.84677947, 0.16386819), (0.49261168, -0.8550917, 0.1617154), (-0.15354575, 0.63458157, 0.7574496), (-0.73555624, -0.33083498, -0.5911897), (-0.027547289, 0.9074388, -0.4192803), (0.9032579, -0.031842332, -0.42791477), (-0.20356363, -0.44503537, 0.87206954), (0.07152841, -0.09110583, -0.9932691), (0.5588568, -0.013501864, 0.8291543), (0.308795, -0.1766636, 0.9345778), (-0.38015795, 0.33423844, 0.86241794), (-7.0485626e-8, -0.928064, -0.37242082), (0.9567605, 0.078428105, 0.2801044), (0.008169626, -0.557522, 0.83012205), (-0.1567898, 0.27343574, 0.9490257), (-0.27343577, -0.1567898, 0.9490258), (0.27343577, 0.1567898, 0.9490258), (0.1567898, -0.27343577, 0.9490257), (-0.9234632, 0.058286693, -0.37923378), (-0.60705686, -0.022016438, 0.79435337), (0.549502, -0.8288313, -0.10529042), (0.46801242, 0.7909419, -0.3941766), (-0.47668266, -0.77348286, -0.4177295)] (
+            interpolation = "vertex"
+        )
+        uniform token purpose = "proxy"
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (58.3156, 29.2836, 0, 1) )
+        uniform token[] xformOpOrder = []
+    }
+
+    def Mesh "Teapot001" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-17.623451, -11.748968, 0), (20.147305, 11.748968, 18.504625)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 7, 8, 1, 1, 8, 9, 2, 2, 9, 10, 3, 3, 10, 11, 4, 4, 11, 12, 5, 5, 12, 13, 6, 7, 14, 15, 8, 8, 15, 16, 9, 9, 16, 17, 10, 10, 17, 18, 11, 11, 18, 19, 12, 12, 19, 20, 13, 14, 21, 22, 15, 15, 22, 23, 16, 16, 23, 24, 17, 17, 24, 25, 18, 18, 25, 26, 19, 19, 26, 27, 20, 21, 28, 29, 22, 22, 29, 30, 23, 23, 30, 31, 24, 24, 31, 32, 25, 25, 32, 33, 26, 26, 33, 34, 27, 28, 35, 36, 29, 29, 36, 37, 30, 30, 37, 38, 31, 31, 38, 39, 32, 32, 39, 40, 33, 33, 40, 41, 34, 35, 42, 43, 36, 36, 43, 44, 37, 37, 44, 45, 38, 38, 45, 46, 39, 39, 46, 47, 40, 40, 47, 48, 41, 42, 49, 50, 43, 43, 50, 51, 44, 44, 51, 52, 45, 45, 52, 53, 46, 46, 53, 54, 47, 47, 54, 55, 48, 49, 56, 57, 50, 50, 57, 58, 51, 51, 58, 59, 52, 52, 59, 60, 53, 53, 60, 61, 54, 54, 61, 62, 55, 56, 63, 64, 57, 57, 64, 65, 58, 58, 65, 66, 59, 59, 66, 67, 60, 60, 67, 68, 61, 61, 68, 69, 62, 63, 70, 71, 64, 64, 71, 72, 65, 65, 72, 73, 66, 66, 73, 74, 67, 67, 74, 75, 68, 68, 75, 76, 69, 70, 77, 78, 71, 71, 78, 79, 72, 72, 79, 80, 73, 73, 80, 81, 74, 74, 81, 82, 75, 75, 82, 83, 76, 77, 84, 85, 78, 78, 85, 86, 79, 79, 86, 87, 80, 80, 87, 88, 81, 81, 88, 89, 82, 82, 89, 90, 83, 84, 91, 92, 85, 85, 92, 93, 86, 86, 93, 94, 87, 87, 94, 95, 88, 88, 95, 96, 89, 89, 96, 97, 90, 91, 98, 99, 92, 92, 99, 100, 93, 93, 100, 101, 94, 94, 101, 102, 95, 95, 102, 103, 96, 96, 103, 104, 97, 98, 105, 106, 99, 99, 106, 107, 100, 100, 107, 108, 101, 101, 108, 109, 102, 102, 109, 110, 103, 103, 110, 111, 104, 105, 112, 113, 106, 106, 113, 114, 107, 107, 114, 115, 108, 108, 115, 116, 109, 109, 116, 117, 110, 110, 117, 118, 111, 112, 119, 120, 113, 113, 120, 121, 114, 114, 121, 122, 115, 115, 122, 123, 116, 116, 123, 124, 117, 117, 124, 125, 118, 119, 126, 127, 120, 120, 127, 128, 121, 121, 128, 129, 122, 122, 129, 130, 123, 123, 130, 131, 124, 124, 131, 132, 125, 126, 133, 134, 127, 127, 134, 135, 128, 128, 135, 136, 129, 129, 136, 137, 130, 130, 137, 138, 131, 131, 138, 139, 132, 133, 140, 141, 134, 134, 141, 142, 135, 135, 142, 143, 136, 136, 143, 144, 137, 137, 144, 145, 138, 138, 145, 146, 139, 140, 147, 148, 141, 141, 148, 149, 142, 142, 149, 150, 143, 143, 150, 151, 144, 144, 151, 152, 145, 145, 152, 153, 146, 147, 154, 155, 148, 148, 155, 156, 149, 149, 156, 157, 150, 150, 157, 158, 151, 151, 158, 159, 152, 152, 159, 160, 153, 154, 161, 162, 155, 155, 162, 163, 156, 156, 163, 164, 157, 157, 164, 165, 158, 158, 165, 166, 159, 159, 166, 167, 160, 161, 0, 1, 162, 162, 1, 2, 163, 163, 2, 3, 164, 164, 3, 4, 165, 165, 4, 5, 166, 166, 5, 6, 167, 6, 13, 174, 168, 168, 174, 175, 169, 169, 175, 176, 170, 170, 176, 177, 171, 171, 177, 178, 172, 172, 178, 179, 173, 13, 20, 180, 174, 174, 180, 181, 175, 175, 181, 182, 176, 176, 182, 183, 177, 177, 183, 184, 178, 178, 184, 185, 179, 20, 27, 186, 180, 180, 186, 187, 181, 181, 187, 188, 182, 182, 188, 189, 183, 183, 189, 190, 184, 184, 190, 191, 185, 27, 34, 192, 186, 186, 192, 193, 187, 187, 193, 194, 188, 188, 194, 195, 189, 189, 195, 196, 190, 190, 196, 197, 191, 34, 41, 198, 192, 192, 198, 199, 193, 193, 199, 200, 194, 194, 200, 201, 195, 195, 201, 202, 196, 196, 202, 203, 197, 41, 48, 204, 198, 198, 204, 205, 199, 199, 205, 206, 200, 200, 206, 207, 201, 201, 207, 208, 202, 202, 208, 209, 203, 48, 55, 210, 204, 204, 210, 211, 205, 205, 211, 212, 206, 206, 212, 213, 207, 207, 213, 214, 208, 208, 214, 215, 209, 55, 62, 216, 210, 210, 216, 217, 211, 211, 217, 218, 212, 212, 218, 219, 213, 213, 219, 220, 214, 214, 220, 221, 215, 62, 69, 222, 216, 216, 222, 223, 217, 217, 223, 224, 218, 218, 224, 225, 219, 219, 225, 226, 220, 220, 226, 227, 221, 69, 76, 228, 222, 222, 228, 229, 223, 223, 229, 230, 224, 224, 230, 231, 225, 225, 231, 232, 226, 226, 232, 233, 227, 76, 83, 234, 228, 228, 234, 235, 229, 229, 235, 236, 230, 230, 236, 237, 231, 231, 237, 238, 232, 232, 238, 239, 233, 83, 90, 240, 234, 234, 240, 241, 235, 235, 241, 242, 236, 236, 242, 243, 237, 237, 243, 244, 238, 238, 244, 245, 239, 90, 97, 246, 240, 240, 246, 247, 241, 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391, 397, 398, 392, 392, 398, 399, 393, 393, 399, 400, 394, 394, 400, 401, 395, 257, 263, 402, 396, 396, 402, 403, 397, 397, 403, 404, 398, 398, 404, 405, 399, 399, 405, 406, 400, 400, 406, 407, 401, 263, 269, 408, 402, 402, 408, 409, 403, 403, 409, 410, 404, 404, 410, 411, 405, 405, 411, 412, 406, 406, 412, 413, 407, 269, 275, 414, 408, 408, 414, 415, 409, 409, 415, 416, 410, 410, 416, 417, 411, 411, 417, 418, 412, 412, 418, 419, 413, 275, 281, 420, 414, 414, 420, 421, 415, 415, 421, 422, 416, 416, 422, 423, 417, 417, 423, 424, 418, 418, 424, 425, 419, 281, 287, 426, 420, 420, 426, 427, 421, 421, 427, 428, 422, 422, 428, 429, 423, 423, 429, 430, 424, 424, 430, 431, 425, 287, 293, 432, 426, 426, 432, 433, 427, 427, 433, 434, 428, 428, 434, 435, 429, 429, 435, 436, 430, 430, 436, 437, 431, 293, 299, 438, 432, 432, 438, 439, 433, 433, 439, 440, 434, 434, 440, 441, 435, 435, 441, 442, 436, 436, 442, 443, 437, 299, 305, 444, 438, 438, 444, 445, 439, 439, 445, 446, 440, 440, 446, 447, 441, 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493, 488, 488, 493, 494, 489, 489, 494, 495, 490, 490, 495, 496, 491, 491, 496, 461, 359, 365, 497, 492, 492, 497, 498, 493, 493, 498, 499, 494, 494, 499, 500, 495, 495, 500, 501, 496, 496, 501, 461, 365, 371, 502, 497, 497, 502, 503, 498, 498, 503, 504, 499, 499, 504, 505, 500, 500, 505, 506, 501, 501, 506, 461, 371, 377, 507, 502, 502, 507, 508, 503, 503, 508, 509, 504, 504, 509, 510, 505, 505, 510, 511, 506, 506, 511, 461, 377, 383, 512, 507, 507, 512, 513, 508, 508, 513, 514, 509, 509, 514, 515, 510, 510, 515, 516, 511, 511, 516, 461, 383, 389, 517, 512, 512, 517, 518, 513, 513, 518, 519, 514, 514, 519, 520, 515, 515, 520, 521, 516, 516, 521, 461, 389, 395, 522, 517, 517, 522, 523, 518, 518, 523, 524, 519, 519, 524, 525, 520, 520, 525, 526, 521, 521, 526, 461, 395, 401, 527, 522, 522, 527, 528, 523, 523, 528, 529, 524, 524, 529, 530, 525, 525, 530, 531, 526, 526, 531, 461, 401, 407, 532, 527, 527, 532, 533, 528, 528, 533, 534, 529, 529, 534, 535, 530, 530, 535, 536, 531, 531, 536, 461, 407, 413, 537, 532, 532, 537, 538, 533, 533, 538, 539, 534, 534, 539, 540, 535, 535, 540, 541, 536, 536, 541, 461, 413, 419, 542, 537, 537, 542, 543, 538, 538, 543, 544, 539, 539, 544, 545, 540, 540, 545, 546, 541, 541, 546, 461, 419, 425, 547, 542, 542, 547, 548, 543, 543, 548, 549, 544, 544, 549, 550, 545, 545, 550, 551, 546, 546, 551, 461, 425, 431, 552, 547, 547, 552, 553, 548, 548, 553, 554, 549, 549, 554, 555, 550, 550, 555, 556, 551, 551, 556, 461, 431, 437, 557, 552, 552, 557, 558, 553, 553, 558, 559, 554, 554, 559, 560, 555, 555, 560, 561, 556, 556, 561, 461, 437, 443, 562, 557, 557, 562, 563, 558, 558, 563, 564, 559, 559, 564, 565, 560, 560, 565, 566, 561, 561, 566, 461, 443, 449, 567, 562, 562, 567, 568, 563, 563, 568, 569, 564, 564, 569, 570, 565, 565, 570, 571, 566, 566, 571, 461, 449, 455, 572, 567, 567, 572, 573, 568, 568, 573, 574, 569, 569, 574, 575, 570, 570, 575, 576, 571, 571, 576, 461, 455, 317, 456, 572, 572, 456, 457, 573, 573, 457, 458, 574, 574, 458, 459, 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(0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8), (1, 1), (1, 0.8333333), (1, 0.6666666), (1, 0.49999994), (1, 0.33333325), (1, 0.16666658), (1, -8.940697e-8), (0.9166667, 1), (0.9166667, 0.8333333), (0.9166667, 0.6666666), (0.9166667, 0.49999994), (0.9166667, 0.33333325), (0.9166667, 0.16666658), (0.9166667, -8.940697e-8), (0.8333334, 1), (0.8333334, 0.8333333), (0.8333334, 0.6666666), (0.8333334, 0.49999994), (0.8333334, 0.33333325), (0.8333334, 0.16666658), (0.8333334, -8.940697e-8), (0.75000006, 1), (0.75000006, 0.8333333), (0.75000006, 0.6666666), (0.75000006, 0.49999994), (0.75000006, 0.33333325), (0.75000006, 0.16666658), (0.75000006, -8.940697e-8), (0.66666675, 1), (0.66666675, 0.8333333), (0.66666675, 0.6666666), (0.66666675, 0.49999994), (0.66666675, 0.33333325), (0.66666675, 0.16666658), (0.66666675, -8.940697e-8), (0.58333343, 1), (0.58333343, 0.8333333), (0.58333343, 0.6666666), (0.58333343, 0.49999994), (0.58333343, 0.33333325), (0.58333343, 0.16666658), (0.58333343, -8.940697e-8), (0.5000001, 0.8333333), (0.5000001, 0.6666666), (0.5000001, 0.49999994), (0.5000001, 0.33333325), (0.5000001, 0.16666658), (0.5000001, -8.940697e-8), (0.5, 1), (0.5, 0.8333333), (0.5, 0.6666666), (0.5, 0.49999994), (0.5, 0.33333325), (0.5, 0.16666658), (0.5, -8.940697e-8), (0.41666666, 1), (0.41666666, 0.8333333), (0.41666666, 0.6666666), (0.41666666, 0.49999994), (0.41666666, 0.33333325), (0.41666666, 0.16666658), (0.41666666, -8.940697e-8), (0.3333333, 1), (0.3333333, 0.8333333), (0.3333333, 0.6666666), (0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8), (1, 1), (1, 0.8333333), (1, 0.6666666), (1, 0.49999994), (1, 0.33333325), (1, 0.16666658), (1, -8.940697e-8), (0.9166667, 1), (0.9166667, 0.8333333), (0.9166667, 0.6666666), (0.9166667, 0.49999994), (0.9166667, 0.33333325), (0.9166667, 0.16666658), (0.9166667, -8.940697e-8), (0.8333334, 1), (0.8333334, 0.8333333), (0.8333334, 0.6666666), (0.8333334, 0.49999994), (0.8333334, 0.33333325), (0.8333334, 0.16666658), (0.8333334, -8.940697e-8), (0.75000006, 1), (0.75000006, 0.8333333), (0.75000006, 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(0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 1), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8), (1, 1), (1, 0.8333333), (1, 0.6666666), (1, 0.49999994), (1, 0.33333325), (1, 0.16666658), (1, -8.940697e-8), (0.9166667, 1), (0.9166667, 0.8333333), (0.9166667, 0.6666666), (0.9166667, 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0.49999994), (0.5, 0.33333325), (0.5, 0.16666658), (0.5, -8.940697e-8), (0.41666666, 1), (0.41666666, 0.8333333), (0.41666666, 0.6666666), (0.41666666, 0.49999994), (0.41666666, 0.33333325), (0.41666666, 0.16666658), (0.41666666, -8.940697e-8), (0.3333333, 1), (0.3333333, 0.8333333), (0.3333333, 0.6666666), (0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 1), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:map1:indices = [0, 7, 8, 1, 1, 8, 9, 2, 2, 9, 10, 3, 3, 10, 11, 4, 4, 11, 12, 5, 5, 12, 13, 6, 7, 14, 15, 8, 8, 15, 16, 9, 9, 16, 17, 10, 10, 17, 18, 11, 11, 18, 19, 12, 12, 19, 20, 13, 14, 21, 22, 15, 15, 22, 23, 16, 16, 23, 24, 17, 17, 24, 25, 18, 18, 25, 26, 19, 19, 26, 27, 20, 21, 28, 29, 22, 22, 29, 30, 23, 23, 30, 31, 24, 24, 31, 32, 25, 25, 32, 33, 26, 26, 33, 34, 27, 28, 35, 36, 29, 29, 36, 37, 30, 30, 37, 38, 31, 31, 38, 39, 32, 32, 39, 40, 33, 33, 40, 41, 34, 35, 42, 43, 36, 36, 43, 44, 37, 37, 44, 45, 38, 38, 45, 46, 39, 39, 46, 47, 40, 40, 47, 48, 41, 49, 56, 57, 50, 50, 57, 58, 51, 51, 58, 59, 52, 52, 59, 60, 53, 53, 60, 61, 54, 54, 61, 62, 55, 56, 63, 64, 57, 57, 64, 65, 58, 58, 65, 66, 59, 59, 66, 67, 60, 60, 67, 68, 61, 61, 68, 69, 62, 63, 70, 71, 64, 64, 71, 72, 65, 65, 72, 73, 66, 66, 73, 74, 67, 67, 74, 75, 68, 68, 75, 76, 69, 70, 77, 78, 71, 71, 78, 79, 72, 72, 79, 80, 73, 73, 80, 81, 74, 74, 81, 82, 75, 75, 82, 83, 76, 77, 84, 85, 78, 78, 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0.13058273, 0.8634581), (0.6628472, 0.17823261, 0.7272321)] (
+            interpolation = "vertex"
+        )
+        uniform token purpose = "render"
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (58.3156, 29.2836, 0, 1) )
+        uniform token[] xformOpOrder = []
+    }
+}
+
+over "Flattened_Prototype_2"
+{
+    def Mesh "Teapot002_Proxy" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-7.5939226, -7.5939226, 0.27536643), (10.246293, 7.5939226, 18.015081)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [23, 52, 45, 21, 51, 44, 75, 45, 68, 72, 44, 66, 62, 63, 33, 20, 47, 46, 22, 50, 43, 62, 33, 0, 73, 43, 69, 53, 55, 57, 56, 54, 58, 74, 46, 67, 12, 11, 29, 65, 25, 58, 55, 56, 9, 54, 53, 19, 6, 15, 24, 67, 16, 3, 3, 16, 26, 66, 18, 10, 28, 17, 27, 68, 15, 6, 69, 17, 28, 10, 18, 59, 9, 58, 25, 29, 11, 19, 58, 9, 56, 57, 19, 53, 46, 74, 20, 33, 71, 20, 44, 72, 21, 63, 71, 33, 63, 62, 5, 43, 73, 22, 23, 0, 33, 45, 75, 23, 3, 6, 24, 3, 24, 67, 25, 12, 9, 12, 25, 11, 10, 3, 26, 10, 26, 66, 6, 27, 68, 6, 28, 27, 28, 2, 69, 19, 57, 29, 12, 29, 57, 31, 32, 30, 32, 31, 30, 74, 45, 52, 20, 4, 33, 35, 34, 36, 34, 70, 60, 37, 38, 64, 61, 37, 39, 76, 40, 42, 41, 40, 64, 76, 39, 40, 40, 41, 49, 43, 75, 17, 17, 69, 43, 18, 66, 44, 44, 73, 18, 45, 74, 15, 15, 68, 45, 46, 72, 16, 16, 67, 46, 71, 63, 1, 72, 46, 47, 30, 48, 31, 48, 30, 31, 49, 42, 40, 42, 49, 41, 75, 43, 50, 0, 50, 62, 5, 51, 63, 73, 44, 51, 4, 52, 33, 52, 23, 33, 8, 13, 53, 54, 8, 53, 56, 14, 54, 14, 8, 54, 53, 13, 55, 13, 7, 55, 55, 7, 56, 7, 14, 56, 57, 9, 12, 9, 57, 55, 19, 58, 54, 58, 19, 11, 10, 59, 2, 2, 59, 18, 60, 36, 30, 60, 36, 34, 36, 60, 30, 36, 60, 70, 38, 61, 39, 50, 22, 62, 22, 5, 62, 21, 1, 63, 51, 21, 63, 64, 39, 41, 64, 39, 37, 39, 64, 40, 64, 38, 39, 25, 65, 11, 11, 65, 58, 66, 16, 72, 16, 66, 26, 67, 15, 74, 15, 67, 24, 68, 17, 75, 17, 68, 27, 69, 18, 73, 18, 69, 2, 34, 35, 70, 70, 35, 36, 47, 20, 71, 1, 47, 71, 47, 1, 72, 21, 72, 1, 51, 5, 73, 22, 73, 5, 52, 4, 74, 20, 74, 4, 50, 0, 75, 23, 75, 0, 76, 41, 39, 41, 76, 42]
+        point3f[] points = [(-7.5939226, 2.1134715, 0.6629191), (7.5939226, -2.1134715, 0.6629191), (-1.9957579, 3.3980255, 14.0987625), (3.3980238, -1.9957572, 14.098761), (-2.1134715, -7.5939226, 0.6629191), (2.1134715, 7.5939226, 0.6629191), (-2.107972, -3.3980238, 14.098761), (-1.8532032, -3.1553075, 14.098761), (1.8532032, 3.1553075, 14.098761), (-0.65803033, -0.3864801, 15.861107), (1.9957572, 3.3980238, 14.098761), (1.7090033, 1.0052645, 18.015081), (-1.7090033, -1.0052645, 18.015081), (-3.1553075, 1.8532032, 14.098761), (3.1553075, -1.8532032, 14.098761), (-0.81619173, -2.932661, 9.5276785), (2.932661, -0.81619173, 9.5276785), (-2.932661, 0.81619173, 9.5276785), (0.81619173, 2.932661, 9.5276785), (0.65803033, 0.3864801, 15.861107), (2.113471, -7.593922, 0.66291916), (7.593922, 2.113471, 0.66291916), (-2.113471, 7.593922, 0.66291916), (-7.593922, -2.113471, 0.66291916), (2.209449, -3.761861, 14.67703), (1.0052645, -1.7090033, 18.015081), (3.761861, 2.209449, 14.67703), (-3.7696083, -2.209449, 14.67703), (-3.7893205, 1.0546093, 14.098761), (-1.0052645, 1.7090033, 18.015081), (4.133179, 0, 10.574071), (5.551747, 0, 3.5246906), (2.9254391, -0.47323284, 8.012143), (-3.6721292, -6.2522535, 0.27536643), (7.9381466, 0.17533533, 14.0987625), (8.894051, -0.17533533, 14.0987625), (6.1701646, -0.43396455, 12.9536295), (-5.8113785, -0.60348934, 3.981595), (-4.8434525, 0, 5.2870355), (-4.3779507, 0.20664078, 8.843152), (-5.975775, -0.265462, 12.365426), (-4.871894, 0, 11.504198), (-3.5934112, 0.2979794, 13.119681), (-3.3594203, 5.719829, 3.0677857), (5.719829, 3.3594203, 3.0677857), (-5.719829, -3.3594203, 3.0677857), (3.3594203, -5.719829, 3.0677857), (6.8097515, -3.9995627, 0.6629191), (5.737438, -0.67541325, 4.914592), (-3.4993355, -0.4586508, 12.87491), (-6.8097515, 3.9995627, 0.6629191), (3.9995627, 6.8097515, 0.6629191), (-3.9995627, -6.8097515, 0.6629191), (1.6896054, 2.876762, 14.75148), (2.876762, -1.6896054, 14.75148), (-2.876762, 1.6896054, 14.75148), (-1.6896054, -2.876762, 14.75148), (-0.3864801, 0.65803033, 15.861107), (0.3864801, -0.65803033, 15.861107), (0, 4.3480425, 14.677031), (4.844524, 0.4922991, 11.25127), (-5.8113775, 0.6034893, 3.9815948), (-3.6721292, 6.252255, 0.27536643), (6.252255, 3.6721292, 0.27536643), (-4.476841, -0.33224237, 8.6769495), (1.9740617, 0, 18.015081), (2.9326615, 0.8161915, 9.5276785), (0.8161915, -2.9326615, 9.5276785), (-2.9326615, -0.8161915, 9.5276785), (-0.8161915, 2.9326615, 9.5276785), (10.246293, 0.25236312, 14.543938), (3.6721292, -6.252255, 0.27536643), (5.719828, -3.3594203, 3.0677857), (3.3594203, 5.719828, 3.0677857), (-3.3594203, -5.719828, 3.0677857), (-5.719828, 3.3594203, 3.0677857), (-5.429587, 0.4521555, 11.969262)]
+        color3f[] primvars:displayColor = [(0.88235295, 0.34117648, 0.56078434)]
+        float3[] primvars:normals = [(-0.9178702, 0.12397304, -0.37702096), (0.9228048, -0.14436254, -0.35719848), (-0.6069828, 0.78031826, -0.15058336), (0.92067885, -0.37513885, 0.10780226), (-0.119915046, -0.9488892, -0.2919413), (0.14436254, 0.92280483, -0.35719848), (-0.39845088, -0.9155368, 0.055038627), (-0.45389408, -0.77281064, 0.44355828), (0.45389405, 0.7728106, 0.4435582), (-0.745788, -0.4127577, 0.5229066), (0.51773316, 0.8509697, 0.088334545), (0.7016134, 0.5990161, 0.38589934), (-0.79511285, -0.467704, 0.38606805), (-0.77281064, 0.45389408, 0.44355828), (0.7728106, -0.45389405, 0.4435582), (-0.33736897, -0.9286686, 0.1541321), (0.9271563, -0.3398108, 0.1578285), (-0.9198977, 0.35365322, 0.16946311), (0.33579168, 0.93001246, 0.1494017), (0.74578804, 0.4127577, 0.52290666), (0.19210368, -0.93911767, -0.28487593), (0.93911755, 0.19210371, -0.2848759), (-0.1921037, 0.93911755, -0.28487587), (-0.9073324, -0.19880025, -0.37044072), (0.38323855, -0.62573415, 0.6794004), (0.37412912, -0.83720374, 0.3988951), (0.6255351, 0.38173163, 0.68043137), (-0.5910198, -0.37076977, 0.71639746), (-0.9353344, 0.33756855, -0.105816275), (-0.467704, 0.79511285, 0.38606802), (0, -1, 0), (-0.8123726, -0.5597555, -0.16347615), (1, 0, 0), (-0.18604723, -0.23959221, -0.95288086), (-0.32839766, 0.3241253, 0.88718534), (0.24535176, -0.96872723, 0.037014633), (-0.57633525, -0.78484267, 0.22772695), (-0.9197721, -0.26626542, 0.2883092), (0.97953755, 0.01261864, -0.20086563), (0.47966272, 0.8043169, -0.35071075), (-0.86416775, -0.3478998, 0.36356562), (0.9541937, -0.25144315, -0.16214362), (0.62471884, 0.5219903, 0.5807344), (-0.39313337, 0.79141057, 0.46809763), (0.79141057, 0.39313334, 0.4680977), (-0.7914106, -0.39313337, 0.4680977), (0.39313337, -0.79141057, 0.46809763), (0.7649176, -0.5120481, -0.39077827), (-0.8123726, -0.5597555, -0.16347615), (0.7623212, -0.6078041, 0.22235236), (-0.7649176, 0.5120481, -0.39077827), (0.5120481, 0.7649176, -0.39077827), (-0.56426, -0.784444, -0.25740692), (0.3864028, 0.6581911, 0.6461248), (0.65819114, -0.3864028, 0.6461249), (-0.6581911, 0.38640282, 0.6461249), (-0.38640282, -0.65819114, 0.6461249), (-0.4127577, 0.745788, 0.5229066), (0.40381026, -0.7657599, 0.5005487), (-0.03382477, 0.6619587, 0.7487766), (-0.7342789, 0.17449169, -0.65603906), (-0.9185982, 0.2657052, 0.29253757), (-0.348289, 0.47455612, -0.8083881), (0.47747988, 0.34657186, -0.80740386), (0.16229397, -0.98600066, 0.038252972), (0.9198818, -0.060487255, 0.3875031), (0.92877686, 0.33988073, 0.14783302), (0.33988073, -0.92877686, 0.14783302), (-0.92999846, -0.33789298, 0.14467591), (-0.34062323, 0.92252016, 0.18147276), (0.9380495, 0.08938196, 0.33477467), (0.3495329, -0.47690985, -0.8064637), (0.7722543, -0.37443674, 0.51324517), (0.37443674, 0.7722543, 0.51324517), (-0.37443674, -0.7722543, 0.5132451), (-0.7722543, 0.37443674, 0.51324517), (-0.3720722, 0.9276554, 0.03190075)] (
+            interpolation = "vertex"
+        )
+        uniform token purpose = "proxy"
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (58.3156, -1.34265, 0, 1) )
+        uniform token[] xformOpOrder = []
+    }
+
+    def Mesh "Teapot002" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-7.8708596, -7.8708596, 0), (10.398057, 7.8708596, 18.504625)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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0.8333333), (0.66666675, 0.6666666), (0.66666675, 0.49999994), (0.66666675, 0.33333325), (0.66666675, 0.16666658), (0.66666675, -8.940697e-8), (0.58333343, 1), (0.58333343, 0.8333333), (0.58333343, 0.6666666), (0.58333343, 0.49999994), (0.58333343, 0.33333325), (0.58333343, 0.16666658), (0.58333343, -8.940697e-8), (0.5000001, 1), (0.5000001, 0.8333333), (0.5000001, 0.6666666), (0.5000001, 0.49999994), (0.5000001, 0.33333325), (0.5000001, 0.16666658), (0.5000001, -8.940697e-8), (0.5, 1), (0.5, 0.8333333), (0.5, 0.6666666), (0.5, 0.49999994), (0.5, 0.33333325), (0.5, 0.16666658), (0.5, -8.940697e-8), (0.41666666, 1), (0.41666666, 0.8333333), (0.41666666, 0.6666666), (0.41666666, 0.49999994), (0.41666666, 0.33333325), (0.41666666, 0.16666658), (0.41666666, -8.940697e-8), (0.3333333, 1), (0.3333333, 0.8333333), (0.3333333, 0.6666666), (0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 1), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8), (1, 1), (1, 0.8333333), (1, 0.6666666), (1, 0.49999994), (1, 0.33333325), (1, 0.16666658), (1, -8.940697e-8), (0.9166667, 1), (0.9166667, 0.8333333), (0.9166667, 0.6666666), (0.9166667, 0.49999994), (0.9166667, 0.33333325), (0.9166667, 0.16666658), (0.9166667, -8.940697e-8), (0.8333334, 1), (0.8333334, 0.8333333), (0.8333334, 0.6666666), 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0.49999994), (0.41666666, 0.33333325), (0.41666666, 0.16666658), (0.41666666, -8.940697e-8), (0.3333333, 1), (0.3333333, 0.8333333), (0.3333333, 0.6666666), (0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 1), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8), (1, 1), (1, 0.8333333), (1, 0.6666666), (1, 0.49999994), (1, 0.33333325), (1, 0.16666658), (1, -8.940697e-8), (0.9166667, 1), (0.9166667, 0.8333333), (0.9166667, 0.6666666), (0.9166667, 0.49999994), (0.9166667, 0.33333325), (0.9166667, 0.16666658), (0.9166667, -8.940697e-8), (0.8333334, 1), (0.8333334, 0.8333333), (0.8333334, 0.6666666), (0.8333334, 0.49999994), (0.8333334, 0.33333325), (0.8333334, 0.16666658), (0.8333334, -8.940697e-8), (0.75000006, 1), (0.75000006, 0.8333333), (0.75000006, 0.6666666), (0.75000006, 0.49999994), (0.75000006, 0.33333325), (0.75000006, 0.16666658), (0.75000006, -8.940697e-8), (0.66666675, 1), (0.66666675, 0.8333333), (0.66666675, 0.6666666), (0.66666675, 0.49999994), (0.66666675, 0.33333325), (0.66666675, 0.16666658), (0.66666675, -8.940697e-8), (0.58333343, 1), (0.58333343, 0.8333333), (0.58333343, 0.6666666), (0.58333343, 0.49999994), (0.58333343, 0.33333325), (0.58333343, 0.16666658), (0.58333343, -8.940697e-8), (0.5000001, 1), (0.5000001, 0.8333333), (0.5000001, 0.6666666), (0.5000001, 0.49999994), (0.5000001, 0.33333325), (0.5000001, 0.16666658), (0.5000001, -8.940697e-8), (0.5, 1), (0.5, 0.8333333), (0.5, 0.6666666), (0.5, 0.49999994), (0.5, 0.33333325), (0.5, 0.16666658), (0.5, -8.940697e-8), (0.41666666, 1), (0.41666666, 0.8333333), (0.41666666, 0.6666666), (0.41666666, 0.49999994), (0.41666666, 0.33333325), (0.41666666, 0.16666658), (0.41666666, -8.940697e-8), (0.3333333, 1), (0.3333333, 0.8333333), (0.3333333, 0.6666666), (0.3333333, 0.49999994), (0.3333333, 0.33333325), (0.3333333, 0.16666658), (0.3333333, -8.940697e-8), (0.24999997, 1), (0.24999997, 0.8333333), (0.24999997, 0.6666666), (0.24999997, 0.49999994), (0.24999997, 0.33333325), (0.24999997, 0.16666658), (0.24999997, -8.940697e-8), (0.16666663, 1), (0.16666663, 0.8333333), (0.16666663, 0.6666666), (0.16666663, 0.49999994), (0.16666663, 0.33333325), (0.16666663, 0.16666658), (0.16666663, -8.940697e-8), (0.08333329, 1), (0.08333329, 0.8333333), (0.08333329, 0.6666666), (0.08333329, 0.49999994), (0.08333329, 0.33333325), (0.08333329, 0.16666658), (0.08333329, -8.940697e-8), (-4.4703484e-8, 1), (-4.4703484e-8, 0.8333333), (-4.4703484e-8, 0.6666666), (-4.4703484e-8, 0.49999994), (-4.4703484e-8, 0.33333325), (-4.4703484e-8, 0.16666658), (-4.4703484e-8, -8.940697e-8)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:map1:indices = [0, 7, 8, 8, 1, 0, 1, 8, 9, 9, 2, 1, 2, 9, 10, 10, 3, 2, 3, 10, 11, 11, 4, 3, 4, 11, 12, 12, 5, 4, 5, 12, 13, 13, 6, 5, 7, 14, 15, 15, 8, 7, 8, 15, 16, 16, 9, 8, 9, 16, 17, 17, 10, 9, 10, 17, 18, 18, 11, 10, 11, 18, 19, 19, 12, 11, 12, 19, 20, 20, 13, 12, 14, 21, 22, 22, 15, 14, 15, 22, 23, 23, 16, 15, 16, 23, 24, 24, 17, 16, 17, 24, 25, 25, 18, 17, 18, 25, 26, 26, 19, 18, 19, 26, 27, 27, 20, 19, 21, 28, 29, 29, 22, 21, 22, 29, 30, 30, 23, 22, 23, 30, 31, 31, 24, 23, 24, 31, 32, 32, 25, 24, 25, 32, 33, 33, 26, 25, 26, 33, 34, 34, 27, 26, 28, 35, 36, 36, 29, 28, 29, 36, 37, 37, 30, 29, 30, 37, 38, 38, 31, 30, 31, 38, 39, 39, 32, 31, 32, 39, 40, 40, 33, 32, 33, 40, 41, 41, 34, 33, 35, 42, 43, 43, 36, 35, 36, 43, 44, 44, 37, 36, 37, 44, 45, 45, 38, 37, 38, 45, 46, 46, 39, 38, 39, 46, 47, 47, 40, 39, 40, 47, 48, 48, 41, 40, 49, 56, 57, 57, 50, 49, 50, 57, 58, 58, 51, 50, 51, 58, 59, 59, 52, 51, 52, 59, 60, 60, 53, 52, 53, 60, 61, 61, 54, 53, 54, 61, 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(0.00002033321, 0.86482066, 0.5020809), (0.11145426, 0.41863486, 0.9012895), (0.25716484, 0.961375, 0.098103724), (0.20086566, 0.752565, -0.6271354), (0.20166992, 0.7549593, -0.6239918), (0.25082645, 0.9374536, -0.2413852), (0.22383015, 0.8350343, 0.502611), (0.21603474, 0.37465078, 0.90164614), (0.4978607, 0.8616902, 0.09810546), (0.3889976, 0.6738733, -0.6281526), (0.39038342, 0.6759882, -0.6250126), (0.48555523, 0.840036, -0.24202412), (0.4328682, 0.7481597, 0.5028739), (0.3055521, 0.3055641, 0.901814), (0.70368946, 0.70370024, 0.0981187), (0.5499486, 0.54996026, -0.62857014), (0.5517389, 0.55176157, -0.6254146), (0.6860142, 0.686063, -0.24228513), (0.61116934, 0.6111926, 0.5029074), (0.37464723, 0.21603324, 0.901648), (0.8616868, 0.49786505, 0.09811301), (0.67387086, 0.38900888, -0.6281482), (0.6759854, 0.39040855, -0.6249999), (0.84001124, 0.4855924, -0.24203514), (0.74817544, 0.43289757, 0.50282514), (0.4186341, 0.11144718, 0.9012908), (0.9613756, 0.25715926, 0.0981125), (0.7525707, 0.20086053, -0.6271304), (0.7549746, 0.2016611, -0.6239762), (0.937458, 0.25079766, -0.2413979), (0.83506894, 0.22382526, 0.50255567), (0.48416224, -2.6243294e-8, 0.87497824), (0.32844684, -3.262978e-7, 0.94452244), (0.31900927, -3.5639235e-7, 0.9477515), (0.489367, -3.387084e-7, 0.872078), (0.92495364, -6.1408167e-7, 0.38007987), (0.9942361, -6.8629174e-7, -0.10721245), (0.4670186, -0.1253159, 0.8753226), (0.31679124, -0.08498192, 0.9446806), (0.3077505, -0.08251725, 0.9478822), (0.47229925, -0.12660986, 0.87229776), (0.8932603, -0.23994003, 0.38015112), (0.9602718, -0.25758645, -0.10736537), (0.41796198, -0.2419367, 0.87565655), (0.2834123, -0.16403632, 0.9448648), (0.275289, -0.15930447, 0.94807065), (0.42257273, -0.24451382, 0.87272286), (0.8002549, -0.4634164, 0.380575), (0.86046845, -0.49801916, -0.107567705), (0.34133798, -0.34133294, 0.8757741), (0.23140983, -0.23140872, 0.9449336), (0.22474842, -0.22474496, 0.94814444), (0.34500006, -0.3449979, 0.8728983), (0.6538411, -0.6538398, 0.38076946), (0.70299864, -0.70299757, -0.10764482), (0.24193573, -0.41796273, 0.8756565), (0.16403581, -0.2834118, 0.94486505), (0.15930352, -0.27528837, 0.948071), (0.24451432, -0.42257246, 0.87272286), (0.46341735, -0.8002537, 0.3805764), (0.4980201, -0.86046803, -0.107566796), (0.12531382, -0.46701977, 0.8753223), (0.084981464, -0.3167908, 0.9446808), (0.082515836, -0.30775103, 0.9478821), (0.12660767, -0.47229794, 0.8722988), (0.23993807, -0.8932598, 0.38015363), (0.25758547, -0.96027243, -0.10736299), (-2.6243297e-8, -0.4841623, 0.87497824), (-3.271877e-7, -0.32844684, 0.9445225), (-3.5579836e-7, -0.31900927, 0.9477515), (-3.4233742e-7, -0.48936695, 0.872078), (-6.1692464e-7, -0.92495364, 0.3800799), (-6.874771e-7, -0.9942361, -0.10721244), (-0.1253159, -0.4670186, 0.8753226), (-0.08498192, -0.31679124, 0.9446806), (-0.08251725, -0.3077505, 0.9478822), (-0.12660986, -0.47229925, 0.87229776), (-0.23994003, -0.8932603, 0.38015112), (-0.25758645, -0.9602718, -0.10736537), (-0.2419367, -0.41796198, 0.87565655), (-0.16403632, -0.2834123, 0.9448648), (-0.15930447, -0.275289, 0.94807065), (-0.24451382, -0.42257273, 0.87272286), (-0.4634164, -0.8002549, 0.380575), (-0.49801916, -0.86046845, -0.107567705), (-0.34133294, -0.34133798, 0.8757741), (-0.23140872, -0.23140983, 0.9449336), (-0.22474496, -0.22474842, 0.94814444), (-0.3449979, -0.34500006, 0.8728983), (-0.6538398, -0.6538411, 0.38076946), (-0.70299757, -0.70299864, -0.10764482), (-0.41796273, -0.24193573, 0.8756565), (-0.2834118, -0.16403581, 0.94486505), (-0.27528837, -0.15930352, 0.948071), (-0.42257246, -0.24451432, 0.87272286), (-0.8002537, -0.46341735, 0.3805764), (-0.86046803, -0.4980201, -0.107566796), (-0.46701977, -0.12531382, 0.8753223), (-0.3167908, -0.084981464, 0.9446808), (-0.30775103, -0.082515836, 0.9478821), (-0.47229794, -0.12660767, 0.8722988), (-0.8932598, -0.23993807, 0.38015363), (-0.96027243, -0.25758547, -0.10736299), (-0.4841623, 2.6243297e-8, 0.87497824), (-0.32844684, 3.271877e-7, 0.9445225), (-0.31900927, 3.5579836e-7, 0.9477515), (-0.48936695, 3.4233742e-7, 0.872078), (-0.92495364, 6.1692464e-7, 0.3800799), (-0.9942361, 6.874771e-7, -0.10721244), (-0.4670186, 0.1253159, 0.8753226), (-0.31679124, 0.08498192, 0.9446806), (-0.3077505, 0.08251725, 0.9478822), (-0.47229925, 0.12660986, 0.87229776), (-0.8932603, 0.23994003, 0.38015112), (-0.9602718, 0.25758645, -0.10736537), (-0.41796198, 0.2419367, 0.87565655), (-0.2834123, 0.16403632, 0.9448648), (-0.275289, 0.15930447, 0.94807065), (-0.42257273, 0.24451382, 0.87272286), (-0.8002549, 0.4634164, 0.380575), (-0.86046845, 0.49801916, -0.107567705), (-0.34133798, 0.34133294, 0.8757741), (-0.23140983, 0.23140872, 0.9449336), (-0.22474842, 0.22474496, 0.94814444), (-0.34500006, 0.3449979, 0.8728983), (-0.6538411, 0.6538398, 0.38076946), (-0.70299864, 0.70299757, -0.10764482), (-0.24193573, 0.41796273, 0.8756565), (-0.16403581, 0.2834118, 0.94486505), (-0.15930352, 0.27528837, 0.948071), (-0.24451432, 0.42257246, 0.87272286), (-0.46341735, 0.8002537, 0.3805764), (-0.4980201, 0.86046803, -0.107566796), (-0.12531382, 0.46701977, 0.8753223), (-0.084981464, 0.3167908, 0.9446808), (-0.082515836, 0.30775103, 0.9478821), (-0.12660767, 0.47229794, 0.8722988), (-0.23993807, 0.8932598, 0.38015363), (-0.25758547, 0.96027243, -0.10736299), (2.6243297e-8, 0.4841623, 0.87497824), (3.271877e-7, 0.32844684, 0.9445225), (3.5579836e-7, 0.31900927, 0.9477515), (3.4233742e-7, 0.48936695, 0.872078), (6.1692464e-7, 0.92495364, 0.3800799), (6.874771e-7, 0.9942361, -0.10721244), (0.1253159, 0.4670186, 0.8753226), (0.08498192, 0.31679124, 0.9446806), (0.08251725, 0.3077505, 0.9478822), (0.12660986, 0.47229925, 0.87229776), (0.23994003, 0.8932603, 0.38015112), (0.25758645, 0.9602718, -0.10736537), (0.2419367, 0.41796198, 0.87565655), (0.16403632, 0.2834123, 0.9448648), (0.15930447, 0.275289, 0.94807065), (0.24451382, 0.42257273, 0.87272286), (0.4634164, 0.8002549, 0.380575), (0.49801916, 0.86046845, -0.107567705), (0.34133294, 0.34133798, 0.8757741), (0.23140872, 0.23140983, 0.9449336), (0.22474496, 0.22474842, 0.94814444), (0.3449979, 0.34500006, 0.8728983), (0.6538398, 0.6538411, 0.38076946), (0.70299757, 0.70299864, -0.10764482), (0.41796273, 0.24193573, 0.8756565), (0.2834118, 0.16403581, 0.94486505), (0.27528837, 0.15930352, 0.948071), (0.42257246, 0.24451432, 0.87272286), (0.8002537, 0.46341735, 0.3805764), (0.86046803, 0.4980201, -0.107566796), (0.46701977, 0.12531382, 0.8753223), (0.3167908, 0.084981464, 0.9446808), (0.30775103, 0.082515836, 0.9478821), (0.47229794, 0.12660767, 0.8722988), (0.8932598, 0.23993807, 0.38015363), (0.96027243, 0.25758547, -0.10736299)] (
+            interpolation = "vertex"
+        )
+        uniform token purpose = "render"
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (58.3156, -1.34265, 0, 1) )
+        uniform token[] xformOpOrder = []
+    }
+}
+
+def Xform "root"
+{
+    def Xform "teapot" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_2>
+    )
+    {
+        uniform token purpose = ""
+    }
+
+    def Xform "teapot_ref001" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_2>
+    )
+    {
+        uniform token purpose = ""
+    }
+
+    def Xform "teapot_ref002" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_2>
+    )
+    {
+        uniform token purpose = ""
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, -22.336, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "teapot_ref003" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_1>
+    )
+    {
+        uniform token purpose = ""
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, -44.6721, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "teapot_ref004" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_2>
+    )
+    {
+        uniform token purpose = ""
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, -67.0081, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "teapot_ref005" (
+        instanceable = true
+        kind = "component"
+        add references = </Flattened_Prototype_2>
+    )
+    {
+        uniform token purpose = ""
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, -89.3441, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def BasisCurves "Line001"
+    {
+        int[] curveVertexCounts = [43]
+        point3f[] points = [(-24.096436, -58.235706, 0), (0.3003756, -40.203396, 0), (23.913061, -27.943544, 0), (44.22057, -18.705807, 0), (58.701874, -9.7398615, 0), (64.83591, 1.7046356, 0), (60.101624, 18.378017, 0), (41.977993, 43.03062, 0), (19.09395, 69.11536, 0), (0.95690095, 88.46813, 0), (-13.636481, 101.41368, 0), (-25.889523, 108.276855, 0), (-37.005543, 109.38237, 0), (-48.187866, 105.05505, 0), (-60.639828, 95.619675, 0), (-73.0934, 84.76916, 0), (-83.43501, 75.363235, 0), (-91.59968, 66.47679, 0), (-97.52246, 57.18479, 0), (-101.13835, 46.562126, 0), (-102.382385, 33.68372, 0), (-101.18959, 17.624481, 0), (-100.702896, 0.033636108, 0), (-102.64099, -16.623262, 0), (-104.802444, -32.046803, 0), (-104.98599, -45.93759, 0), (-100.99019, -57.996204, 0), (-90.61369, -67.92325, 0), (-71.65516, -75.41931, 0), (-48.10874, -82.62811, 0), (-25.161226, -90.84479, 0), (-2.4000382, -98.4971, 0), (20.587378, -104.01289, 0), (44.21358, -105.8199, 0), (68.891136, -102.34593, 0), (95.03261, -92.01874, 0), (118.115234, -73.901695, 0), (133.73508, -49.82939, 0), (142.48288, -22.386444, 0), (144.94954, 5.8424907, 0), (141.7258, 32.2728, 0), (133.40247, 54.319847, 0), (120.57037, 69.39901, 0)]
+        color3f[] primvars:displayColor = [(0.10980392, 0.10980392, 0.69411767)]
+        uniform token type = "linear"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (56.3671, -50.2445, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def PointInstancer "PropLine001"
+    {
+        quath[] orientations = [(-0.950684, 0, 0, -0.309814), (-0.973633, 0, 0, -0.22876), (-0.968262, 0, 0, -0.250488), (-0.697266, 0, 0, -0.716797), (-0.441895, 0, 0, -0.896973), (-0.411865, 0, 0, -0.911133), (-0.390381, 0, 0, -0.92041), (-0.247925, 0, 0, -0.96875), (0.23645, 0, 0, -0.97168), (0.357666, 0, 0, -0.934082), (-0.502441, 0, 0, 0.864746), (-0.713867, 0, 0, 0.700195), (-0.681641, 0, 0, 0.731934), (-0.697754, 0, 0, 0.716309), (-0.932129, 0, 0, 0.362061), (-0.989258, 0, 0, 0.147583), (-0.985352, 0, 0, 0.170532), (-0.989258, 0, 0, 0.144897), (-0.998535, 0, 0, 0.0538635), (-0.996094, 0, 0, -0.0876465), (-0.973145, 0, 0, -0.229858), (-0.916504, 0, 0, -0.400391), (-0.836914, 0, 0, -0.546875), (-0.757324, 0, 0, -0.65332), (-0.671875, 0, 0, -0.740723), (-0.543945, 0, 0, -0.838867), (-0.543945, 0, 0, -0.838867)]
+        point3f[] positions = [(32.270634, -108.48016, 0), (58.50296, -89.361595, 0), (87.601776, -74.8818, 0), (115.9048, -59.186127, 0), (115.0821, -29.445168, 0), (95.290695, -3.697113, 0), (73.804474, 20.713596, 0), (51.205055, 44.0814, 0), (23.263065, 59.38093, 0), (-4.945259, 44.78378, 0), (-29.13898, 23.063892, 0), (-44.979473, -4.7328644, 0), (-44.353992, -37.1093, 0), (-46.66885, -69.471436, 0), (-47.5051, -101.72217, 0), (-24.43758, -122.83057, 0), (6.655655, -132.3248, 0), (37.28459, -143.25215, 0), (68.421936, -152.56993, 0), (100.67063, -156.05898, 0), (132.5693, -150.40198, 0), (161.54498, -135.9051, 0), (183.5108, -112.18148, 0), (196.51761, -82.50419, 0), (201.28552, -50.416622, 0), (198.12947, -18.140114, 0), (184.95639, 11.321129, 0)]
+        int[] protoIndices = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0]
+        rel prototypes = [
+            </root/PropLine001/Protos/teapot_ref003>,
+            </root/PropLine001/Protos/teapot_ref004>,
+        ]
+        float3[] scales = [(1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1), (1, 1, 1)]
+
+        def "Protos"
+        {
+            def Xform "teapot_ref003" (
+                instanceable = true
+                kind = "component"
+                add references = </Flattened_Prototype_2>
+            )
+            {
+                uniform token purpose = ""
+                uniform token[] xformOpOrder = ["!resetXformStack!"]
+            }
+
+            def Xform "teapot_ref004" (
+                instanceable = true
+                kind = "component"
+                add references = </Flattened_Prototype_2>
+            )
+            {
+                uniform token purpose = ""
+                uniform token[] xformOpOrder = ["!resetXformStack!"]
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/instance_vis_crash.usda b/src/Tests/Integration/data/instance_vis_crash.usda
new file mode 100644
index 0000000..7cf8239
--- /dev/null
+++ b/src/Tests/Integration/data/instance_vis_crash.usda
@@ -0,0 +1,230 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.5.2.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Xform "Box003"
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (9.77868, 38.3292, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Mesh "Box003_Shape"
+        {
+            float3[] extent = [(-12.11458, -13.942289, 0), (12.11458, 13.942289, 13.925379)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-12.11458, -13.942289, 0), (12.11458, -13.942289, 0), (-12.11458, 13.942289, 0), (12.11458, 13.942289, 0), (-12.11458, -13.942289, 13.925379), (12.11458, -13.942289, 13.925379), (-12.11458, 13.942289, 13.925379), (12.11458, 13.942289, 13.925379)]
+            color3f[] primvars:displayColor = [(0.03137255, 0.43137255, 0.5294118)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Xform "Box002" (
+            prepend inherits = </root/_class_Box002>
+            instanceable = true
+        )
+        {
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (28.21192, -41.55052, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+        }
+
+        def Xform "Box001" (
+            prepend inherits = </root/_class_Box002>
+            instanceable = true
+        )
+        {
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-42.02928, -41.55052, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+        }
+    }
+
+    class Class "_class_Box002"
+    {
+        def Mesh "Box002"
+        {
+            float3[] extent = [(-8.487811, -10.971897, 0), (8.487811, 10.971897, 18.30843)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-8.487811, -10.971897, 0), (8.487811, -10.971897, 0), (-8.487811, 10.971897, 0), (8.487811, 10.971897, 0), (-8.487811, -10.971897, 18.30843), (8.487811, -10.971897, 18.30843), (-8.487811, 10.971897, 18.30843), (8.487811, 10.971897, 18.30843)]
+            color3f[] primvars:displayColor = [(0.5294118, 0.023529412, 0.023529412)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/instances_with_material_bound_subsets.usda b/src/Tests/Integration/data/instances_with_material_bound_subsets.usda
new file mode 100644
index 0000000..f26390b
--- /dev/null
+++ b/src/Tests/Integration/data/instances_with_material_bound_subsets.usda
@@ -0,0 +1,252 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "instances_with_material_bound_subsets"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "instances_with_material_bound_subsets"
+{
+    def Xform "Box001" (
+        prepend inherits = </instances_with_material_bound_subsets/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-2.49049, -9.14661, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box001"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+            color3f[] primvars:displayColor = [(0.72156864, 0.89411765, 0.6)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_Material__26" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__26>
+            }
+
+            def GeomSubset "_2_Material__38" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__38>
+            }
+
+            def GeomSubset "_3_Material__47" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__47>
+            }
+
+            def GeomSubset "_4_Material__48" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__48>
+            }
+
+            def GeomSubset "_5_Material__49" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__49>
+            }
+
+            def GeomSubset "_6_Material__50" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+                rel material:binding = </instances_with_material_bound_subsets/Materials/Material__50>
+            }
+        }
+    }
+
+    def Xform "Box002" (
+        prepend inherits = </instances_with_material_bound_subsets/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (18.291, -9.14661, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__26/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (1, 0, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__38"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__38/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__47"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__47/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.8627451, 0.007843138, 0.77254903)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__48"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__48/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0, 0.043137256, 0.8980392)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__49"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__49/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5058824, 0.54901963, 0.1254902)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__50"
+        {
+            token outputs:surface.connect = </instances_with_material_bound_subsets/Materials/Material__50/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.09019608, 0.9529412, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/light-sun-envmap.max b/src/Tests/Integration/data/light-sun-envmap.max
new file mode 100644
index 0000000..d7443dc
--- /dev/null
+++ b/src/Tests/Integration/data/light-sun-envmap.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70c5a13e159d11f78e6af632f3bad2c0f807ce813d5cc0e71cb338468d284377
+size 847872
diff --git a/src/Tests/Integration/data/lights_animated.usda b/src/Tests/Integration/data/lights_animated.usda
new file mode 100644
index 0000000..2baeb83
--- /dev/null
+++ b/src/Tests/Integration/data/lights_animated.usda
@@ -0,0 +1,198 @@
+#usda 1.0
+(
+    defaultPrim = "root"
+    endTimeCode = 10
+    framesPerSecond = 30
+    metersPerUnit = 0.001
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def RectLight "RectangleLight"
+    {
+        color3f inputs:color.timeSamples = {
+            0: (1, 0.99999994, 1.0000001),
+            10: (1, 0.99999994, 1.0000001),
+        }
+        bool inputs:enableColorTemperature = 0
+        float inputs:height.timeSamples = {
+            0: 100,
+            10: 50,
+        }
+        float inputs:intensity.timeSamples = {
+            0: 3141592.8,
+            10: 1570796.4,
+        }
+        bool inputs:normalize = 1
+        color3f inputs:shadow:color.timeSamples = {
+            0: (0, 0, 0),
+            10: (0, 0, 0),
+        }
+        bool inputs:shadow:enable = 1
+        float inputs:width.timeSamples = {
+            0: 100,
+            10: 50,
+        }
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-39.3376, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-39.3376, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "CylinderLight"
+    {
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-25, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-25, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def CylinderLight "CylinderLight_Light"
+        {
+            color3f inputs:color.timeSamples = {
+                0: (1, 0.99999994, 1.0000001),
+                10: (1, 0.99999994, 1.0000001),
+            }
+            bool inputs:enableColorTemperature = 0
+            float inputs:intensity.timeSamples = {
+                0: 3141592.8,
+                10: 1570796.4,
+            }
+            float inputs:length.timeSamples = {
+                0: 100,
+                10: 200,
+            }
+            bool inputs:normalize = 1
+            float inputs:radius.timeSamples = {
+                0: 20,
+                10: 40,
+            }
+            color3f inputs:shadow:color.timeSamples = {
+                0: (0, 0, 0),
+                10: (0, 0, 0),
+            }
+            bool inputs:shadow:enable = 1
+            double xformOp:rotateZ = 90
+            uniform token[] xformOpOrder = ["xformOp:rotateZ"]
+        }
+    }
+
+    def RectLight "LineLight"
+    {
+        color3f inputs:color.timeSamples = {
+            0: (1, 0.99999994, 1.0000001),
+            10: (1, 0.99999994, 1.0000001),
+        }
+        bool inputs:enableColorTemperature = 0
+        float inputs:height.timeSamples = {
+            0: 50,
+            10: 100,
+        }
+        float inputs:intensity.timeSamples = {
+            0: 3141592.8,
+            10: 1570796.4,
+        }
+        bool inputs:normalize = 1
+        color3f inputs:shadow:color.timeSamples = {
+            0: (0, 0, 0),
+            10: (0, 0, 0),
+        }
+        bool inputs:shadow:enable = 1
+        float inputs:width = 0.1
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-5, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-5, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def DiskLight "DiscLight"
+    {
+        color3f inputs:color.timeSamples = {
+            0: (1, 0.99999994, 1.0000001),
+            10: (1, 0.99999994, 1.0000001),
+        }
+        bool inputs:enableColorTemperature = 0
+        float inputs:intensity.timeSamples = {
+            0: 3141592.8,
+            10: 1570796.4,
+        }
+        bool inputs:normalize = 1
+        float inputs:radius.timeSamples = {
+            0: 20,
+            10: 40,
+        }
+        color3f inputs:shadow:color.timeSamples = {
+            0: (0, 0, 0),
+            10: (0, 0, 0),
+        }
+        bool inputs:shadow:enable = 1
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (5, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def SphereLight "SphereLight"
+    {
+        color3f inputs:color.timeSamples = {
+            0: (1, 0.99999994, 1.0000001),
+            10: (1, 0.99999994, 1.0000001),
+        }
+        bool inputs:enableColorTemperature = 0
+        float inputs:intensity.timeSamples = {
+            0: 3141592.8,
+            10: 1570796.4,
+        }
+        bool inputs:normalize = 1
+        float inputs:radius.timeSamples = {
+            0: 10,
+            10: 20,
+        }
+        color3f inputs:shadow:color.timeSamples = {
+            0: (0, 0, 0),
+            10: (0, 0, 0),
+        }
+        bool inputs:shadow:enable = 1
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (25, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (25, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def DiskLight "PointLight"
+    {
+        color3f inputs:color.timeSamples = {
+            0: (1, 1, 1),
+            10: (1, 0.08464151, 0.08464151),
+        }
+        float inputs:colorTemperature.timeSamples = {
+            0: 3600,
+            10: 1000,
+        }
+        bool inputs:enableColorTemperature = 1
+        float inputs:intensity.timeSamples = {
+            0: 3141592.8,
+            10: 1570796.4,
+        }
+        bool inputs:normalize = 1
+        float inputs:radius = 0.001
+        color3f inputs:shadow:color.timeSamples = {
+            0: (0, 0, 0),
+            10: (0, 0, 0),
+        }
+        bool inputs:shadow:enable = 1
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (45, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (45, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/lights_animated_source.max b/src/Tests/Integration/data/lights_animated_source.max
new file mode 100644
index 0000000..a06e832
--- /dev/null
+++ b/src/Tests/Integration/data/lights_animated_source.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:46e2b6f3c37969dc635d063cb8b0381ad7e1412424bfde55f3ea539def4d500d
+size 888832
diff --git a/src/Tests/Integration/data/morpher_box.usd b/src/Tests/Integration/data/morpher_box.usd
new file mode 100644
index 0000000..d3076f9
--- /dev/null
+++ b/src/Tests/Integration/data/morpher_box.usd
@@ -0,0 +1,102 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.5.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 10
+    framesPerSecond = 30
+    metersPerUnit = 0.1
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def SkelRoot "root"
+{
+    float3[] extent.timeSamples = {
+        0: [(-5, -5, 0), (5, 25, 10)],
+        1.0000000521540642: [(-5, -5, 0), (5, 25, 10)],
+        2.0000001043081284: [(-5, -5, 0), (5, 25, 10)],
+        3.0000000447034836: [(-5, -5, 0), (5, 25, 10)],
+        4.000000208616257: [(-5, -5, 0), (5, 25, 10)],
+        5.000000149011612: [(-5, -5, 0), (5, 25, 10)],
+        6.000000089406967: [(-5, -5, 0), (5, 25, 10)],
+        7.000000029802322: [(-5, -5, 0), (5, 25, 10)],
+        8.000000417232513: [(-5, -5, 0), (5, 25, 10)],
+        9.000000357627869: [(-5, -5, 0), (5, 25, 10)],
+        10.000000298023224: [(-5, -5, 0), (5, 25, 10)],
+    }
+
+    def Mesh "b1" (
+        prepend apiSchemas = ["SkelBindingAPI"]
+    )
+    {
+        float3[] extent
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+        color3f[] primvars:displayColor = [(0.6509804, 0.8980392, 0.8980392)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:normals:indices = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token[] skel:blendShapes = ["_root_b1_Box0002"]
+        rel skel:blendShapeTargets = [
+            </root/b1/Box0002>,
+            </dummy/blendShape/target>,
+        ]
+        rel skel:skeleton = </root/Bones>
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def BlendShape "Box0002"
+        {
+          
+            uniform point3f[] inbetweens:IBT_1 = [(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (5, 5, 0), (-5, 5, 0), (5, -5, 0), (-5, -5, 0)] (
+                weight = -1
+            )
+            uniform vector3f[] offsets = [(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0)]
+        }
+    }
+
+    def Skeleton "Bones" (
+        prepend apiSchemas = ["SkelBindingAPI"]
+    )
+    {
+        rel skel:animationSource = </root/Bones/Animations>
+
+        def SkelAnimation "Animations"
+        {
+            uniform token[] blendShapes = ["_root_b1_Box0002"]
+            float[] blendShapeWeights = [-1]
+            float[] blendShapeWeights.timeSamples = {
+                0: [-1],
+                1: [-0.75],
+                2: [-0.5],
+                3: [-0.25],
+                5: [0, 0],
+                7: [0.25],
+                10: [1],
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/mtlxFailToFindMaterial.max b/src/Tests/Integration/data/mtlxFailToFindMaterial.max
new file mode 100644
index 0000000..b381f11
--- /dev/null
+++ b/src/Tests/Integration/data/mtlxFailToFindMaterial.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51f39fc22e40d97d8192f2094243c2c9d02062ea54dd3c93a8dd3d5eb7efad1b
+size 970752
diff --git a/src/Tests/Integration/data/non_standard_uv.usda b/src/Tests/Integration/data/non_standard_uv.usda
new file mode 100644
index 0000000..00e3f63
--- /dev/null
+++ b/src/Tests/Integration/data/non_standard_uv.usda
@@ -0,0 +1,324 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.20.0"
+    }
+    defaultPrim = "non_standard_uv"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "non_standard_uv"
+{
+    def Mesh "Box001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+    )
+    {
+        float3[] extent = [(-20.373322, -14.319678, 0), (20.373322, 14.319678, 10.807342)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 2, 3, 3, 1, 0, 4, 5, 7, 7, 6, 4, 0, 1, 5, 5, 4, 0, 1, 3, 7, 7, 5, 1, 3, 2, 6, 6, 7, 3, 2, 0, 4, 4, 6, 2]
+        rel material:binding = </non_standard_uv/Materials/Material__26>
+        point3f[] points = [(-20.373322, -14.319678, 0), (20.373322, -14.319678, 0), (-20.373322, 14.319678, 0), (20.373322, 14.319678, 0), (-20.373322, -14.319678, 10.807342), (20.373322, -14.319678, 10.807342), (-20.373322, 14.319678, 10.807342), (20.373322, 14.319678, 10.807342)]
+        color3f[] primvars:displayColor = [(0.03137255, 0.23921569, 0.5411765)]
+        float2[] primvars:foo = [(-0, 4.8190356e-7), (-0.26999992, 0), (-4.827976e-8, 1.47), (-0.26999998, 1.4699996), (-0, 4.8190356e-7), (-0.26999992, 0), (-4.827976e-8, 1.47), (-0.26999998, 1.4699996)] (
+            interpolation = "vertex"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:normals:indices = [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20]
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-7.09543, -6.5822, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2, 3]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0, 1]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [10, 11]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [6, 7]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4, 5]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [8, 9]
+        }
+    }
+	
+    def Mesh "Box002" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+    )
+    {
+        float3[] extent = [(-20.373322, -14.319678, 0), (20.373322, 14.319678, 10.807342)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 2, 3, 3, 1, 0, 4, 5, 7, 7, 6, 4, 0, 1, 5, 5, 4, 0, 1, 3, 7, 7, 5, 1, 3, 2, 6, 6, 7, 3, 2, 0, 4, 4, 6, 2]
+        rel material:binding = </non_standard_uv/Materials/Material__27>
+        point3f[] points = [(-20.373322, -14.319678, 0), (20.373322, -14.319678, 0), (-20.373322, 14.319678, 0), (20.373322, 14.319678, 0), (-20.373322, -14.319678, 10.807342), (20.373322, -14.319678, 10.807342), (-20.373322, 14.319678, 10.807342), (20.373322, 14.319678, 10.807342)]
+        color3f[] primvars:displayColor = [(0.03137255, 0.23921569, 0.5411765)]
+        float2[] primvars:bar = [(-0, 4.8190356e-7), (-0.15, 0), (-4.827976e-8, 1.47), (-0.26999998, 1.4699996), (-0, 4.8190356e-7), (-0.26999992, 0), (-4.827976e-8, 1.47), (-0.26999998, 1.4699996)] (
+            interpolation = "vertex"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:normals:indices = [0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 9, 10, 10, 11, 8, 12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20]
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-7.09543, -6.5822, 25, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2, 3]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0, 1]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [10, 11]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [6, 7]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4, 5]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [8, 9]
+        }
+    }	
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token inputs:frame:foo = "foo"
+            token outputs:surface.connect = </non_standard_uv/Materials/Material__26/Material__26.outputs:surface>
+
+            def Shader "Material__26"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </non_standard_uv/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @.\uv_checker.png@
+            float2 inputs:st.connect = </non_standard_uv/Materials/Map__1/TextureTransform_foo.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_foo"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </non_standard_uv/Materials/Material__26.inputs:frame:foo>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_foo"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </non_standard_uv/Materials/Map__1/PrimvarReader_foo.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+		
+		def Material "Material__27"
+        {
+            
+            token outputs:surface.connect = </non_standard_uv/Materials/Material__27/Material__27.outputs:surface>
+
+            def Shader "Material__27"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </non_standard_uv/Materials/Map__2.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__2"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @.\uv_checker.png@
+            float2 inputs:st.connect = </non_standard_uv/Materials/Map__2/TextureTransform_foo.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_foo"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname = "bar"
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_foo"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </non_standard_uv/Materials/Map__2/PrimvarReader_foo.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/orangepeel_normal.png b/src/Tests/Integration/data/orangepeel_normal.png
new file mode 100644
index 0000000..0cc45da
--- /dev/null
+++ b/src/Tests/Integration/data/orangepeel_normal.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e87274e33ddd5af73b1df1ec7fe4d17ae57b10afa2d2d4b5320846b8f6678133
+size 1368765
diff --git a/src/Tests/Integration/data/partial_subset_consolidation.usda b/src/Tests/Integration/data/partial_subset_consolidation.usda
new file mode 100644
index 0000000..d172c21
--- /dev/null
+++ b/src/Tests/Integration/data/partial_subset_consolidation.usda
@@ -0,0 +1,267 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.20.0"
+    }
+    defaultPrim = "partial_subset_consolidation"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "partial_subset_consolidation"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-8.028923, -9.392155, 0), (8.028923, 9.392155, 9.453747)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-8.028923, -9.392155, 0), (8.028923, -9.392155, 0), (-8.028923, 9.392155, 0), (8.028923, 9.392155, 0), (-8.028923, -9.392155, 9.453747), (8.028923, -9.392155, 9.453747), (-8.028923, 9.392155, 9.453747), (8.028923, 9.392155, 9.453747)]
+        color3f[] primvars:displayColor = [(0.8901961, 0.6, 0.6)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-43.0279, -3.33251, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+            rel material:binding = </partial_subset_consolidation/Materials/Material__43>
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent = [(-11.145199, -11.855919, 0), (11.145199, 11.855919, 12.652005)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-11.145199, -11.855919, 0), (11.145199, -11.855919, 0), (-11.145199, 11.855919, 0), (11.145199, 11.855919, 0), (-11.145199, -11.855919, 12.652005), (11.145199, -11.855919, 12.652005), (-11.145199, 11.855919, 12.652005), (11.145199, 11.855919, 12.652005)]
+        color3f[] primvars:displayColor = [(0.34509805, 0.69411767, 0.105882354)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (10.2993, -0.857711, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+            rel material:binding = </partial_subset_consolidation/Materials/Material__43>
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__43"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </partial_subset_consolidation/Materials/Material__43/Material__43.outputs:surface>
+
+            def Shader "Material__43"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </partial_subset_consolidation/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </partial_subset_consolidation/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </partial_subset_consolidation/Materials/Material__43.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </partial_subset_consolidation/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/partial_subset_consolidation_second_subset.usda b/src/Tests/Integration/data/partial_subset_consolidation_second_subset.usda
new file mode 100644
index 0000000..66fbf16
--- /dev/null
+++ b/src/Tests/Integration/data/partial_subset_consolidation_second_subset.usda
@@ -0,0 +1,294 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.20.0"
+    }
+    defaultPrim = "partial_subset_consolidation"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "partial_subset_consolidation"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-8.028923, -9.392155, 0), (8.028923, 9.392155, 9.453747)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-8.028923, -9.392155, 0), (8.028923, -9.392155, 0), (-8.028923, 9.392155, 0), (8.028923, 9.392155, 0), (-8.028923, -9.392155, 9.453747), (8.028923, -9.392155, 9.453747), (-8.028923, 9.392155, 9.453747), (8.028923, 9.392155, 9.453747)]
+        color3f[] primvars:displayColor = [(0.8901961, 0.6, 0.6)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-43.0279, -3.33251, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+			rel material:binding = </partial_subset_consolidation/Materials/Material__44>
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+			rel material:binding = </partial_subset_consolidation/Materials/Material__43>
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent = [(-11.145199, -11.855919, 0), (11.145199, 11.855919, 12.652005)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-11.145199, -11.855919, 0), (11.145199, -11.855919, 0), (-11.145199, 11.855919, 0), (11.145199, 11.855919, 0), (-11.145199, -11.855919, 12.652005), (11.145199, -11.855919, 12.652005), (-11.145199, 11.855919, 12.652005), (11.145199, 11.855919, 12.652005)]
+        color3f[] primvars:displayColor = [(0.34509805, 0.69411767, 0.105882354)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (10.2993, -0.857711, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__43" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+			rel material:binding = </partial_subset_consolidation/Materials/Material__43>
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__43"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </partial_subset_consolidation/Materials/Material__43/Material__43.outputs:surface>
+
+            def Shader "Material__43"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </partial_subset_consolidation/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+		
+		def Material "Material__44"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </partial_subset_consolidation/Materials/Material__44/Material__44.outputs:surface>
+
+            def Shader "Material__44"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </partial_subset_consolidation/Materials/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </partial_subset_consolidation/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </partial_subset_consolidation/Materials/Material__43.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </partial_subset_consolidation/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/phy-mat-leaf-cutout.max b/src/Tests/Integration/data/phy-mat-leaf-cutout.max
new file mode 100644
index 0000000..9fed1ca
--- /dev/null
+++ b/src/Tests/Integration/data/phy-mat-leaf-cutout.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b6c618d129a5ee420fbea1766d3bf54cc6e224b9c26907c29f789cbab1fec4f4
+size 876544
diff --git a/src/Tests/Integration/data/plane_displayColor_constant.usda b/src/Tests/Integration/data/plane_displayColor_constant.usda
new file mode 100644
index 0000000..412d50f
--- /dev/null
+++ b/src/Tests/Integration/data/plane_displayColor_constant.usda
@@ -0,0 +1,32 @@
+#usda 1.0
+(
+    defaultPrim = "plane_displayColor_constant"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "plane_displayColor_constant"
+{
+    def Mesh "Plane001" (
+    )
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        point3f[] points = [(-5, -5, 0), (0, -5, 0), (5, -5, 0), (-5, 0, 0), (0, 0, 0), (5, 0, 0), (-5, 5, 0), (0, 5, 0), (5, 5, 0)]
+
+        color3f[] primvars:displayColor(
+            interpolation = "constant"
+        )
+
+        color3f[] primvars:displayColor.timeSamples = {
+          0 : [(0, 0, 1)],
+          1 : [(0, 0, -1)]
+        }
+        
+        uniform token subdivisionScheme = "none"
+    }
+}
+
diff --git a/src/Tests/Integration/data/plane_normals_constant.usda b/src/Tests/Integration/data/plane_normals_constant.usda
new file mode 100644
index 0000000..bc8d847
--- /dev/null
+++ b/src/Tests/Integration/data/plane_normals_constant.usda
@@ -0,0 +1,33 @@
+#usda 1.0
+(
+    defaultPrim = "plane_normals_constant"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "plane_normals_constant"
+{
+    def Mesh "Plane001" (
+    )
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        point3f[] points = [(-5, -5, 0), (0, -5, 0), (5, -5, 0), (-5, 0, 0), (0, 0, 0), (5, 0, 0), (-5, 5, 0), (0, 5, 0), (5, 5, 0)]
+        color3f[] primvars:displayColor = [(0.6, 0.89411765, 0.6)]
+
+        float3[] primvars:normals(
+            interpolation = "constant"
+        )
+
+        float3[] primvars:normals.timeSamples = {
+          0 : [(0, 0, 1)],
+          1 : [(0, 0, -1)]
+        }
+        
+        uniform token subdivisionScheme = "none"
+    }
+}
+
diff --git a/src/Tests/Integration/data/plane_uv_constant.usda b/src/Tests/Integration/data/plane_uv_constant.usda
new file mode 100644
index 0000000..8c26276
--- /dev/null
+++ b/src/Tests/Integration/data/plane_uv_constant.usda
@@ -0,0 +1,85 @@
+#usda 1.0
+(
+    defaultPrim = "plane_uv_constant"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "plane_uv_constant"
+{
+    def Mesh "Plane001" (
+    )
+    {
+        float3[] extent = [(-5, -5, 0), (5, 5, 0.0001)]
+        int[] faceVertexCounts = [4, 4, 4, 4]
+        int[] faceVertexIndices = [3, 0, 1, 4, 4, 1, 2, 5, 6, 3, 4, 7, 7, 4, 5, 8]
+        point3f[] points = [(-5, -5, 0), (0, -5, 0), (5, -5, 0), (-5, 0, 0), (0, 0, 0), (5, 0, 0), (-5, 5, 0), (0, 5, 0), (5, 5, 0)]
+        color3f[] primvars:displayColor = [(0.6, 0.89411765, 0.6)]
+
+        texCoord2f[] primvars:map1(
+            interpolation = "constant"
+        )
+
+        texCoord2f[] primvars:map1.timeSamples = {
+          0 : [(0, 1)],
+          1 : [(1, 0)]
+        }
+        
+        uniform token subdivisionScheme = "none"
+        
+        rel material:binding = </plane_uv_constant/Materials/Material__25>
+    }
+    
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </plane_uv_constant/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </plane_uv_constant/Materials/Map__1.outputs:rgb>
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </plane_uv_constant/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </plane_uv_constant/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </plane_uv_constant/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/point_instancer_draw_modes.usda b/src/Tests/Integration/data/point_instancer_draw_modes.usda
new file mode 100644
index 0000000..e2af555
--- /dev/null
+++ b/src/Tests/Integration/data/point_instancer_draw_modes.usda
@@ -0,0 +1,43 @@
+#usda 1.0
+(
+    startTimeCode = 0
+    endTimeCode = 1
+)
+
+def Xform "ProtoRed" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(1,0,0)]
+    }
+    token visibility = "invisible"
+}
+
+def Xform "ProtoGreen" () {
+    def Cone "cone" () {
+        ColorFloat[] primvars:displayColor = [(0,1,0)]
+    }
+    token visibility = "invisible"
+}
+
+def PointInstancer "Instancer" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 , 1, 0],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+	PointFloat[] positions = [  (0,0,0), (4,4,4), (8,8,8), (12,12,12), (16,16,16)]
+    
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/point_instancer_draw_modes_authored_kinds.usda b/src/Tests/Integration/data/point_instancer_draw_modes_authored_kinds.usda
new file mode 100644
index 0000000..64dbbc6
--- /dev/null
+++ b/src/Tests/Integration/data/point_instancer_draw_modes_authored_kinds.usda
@@ -0,0 +1,88 @@
+#usda 1.0
+(
+    startTimeCode = 0
+    endTimeCode = 1
+)
+
+def Xform "ProtoRed" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(1,0,0)]
+    }
+    token visibility = "invisible"
+}
+
+def Xform "ProtoGreen" () {
+    def Cone "cone" () {
+        ColorFloat[] primvars:displayColor = [(0,1,0)]
+    }
+    token visibility = "invisible"
+}
+
+// No kinds authored case.
+def Xform "Test1" 
+{
+	def PointInstancer "Instancer" {
+		int[] protoIndices.timeSamples = {
+			0:[ 1, 0 , 1, 0],
+			
+		}
+		rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+		PointFloat[] positions = [  (0,0,0), (4,4,4), (8,8,8), (12,12,12), (16,16,16)]
+		
+		def "Protos" {
+
+			def "Proto1" (
+				references = </ProtoRed>
+			) {
+				token visibility = "visible"
+			}
+			def Xform "Proto2" (
+				references = </ProtoGreen>
+			) {
+				token visibility = "visible"
+			}
+		}
+	}
+}
+
+// Kinds authored case.
+def Xform "Test2"
+(
+	kind = "component"
+)
+{
+	def PointInstancer "Instancer" 
+	(
+		kind = "group"
+	)
+	{
+		int[] protoIndices.timeSamples = {
+			0:[ 1, 0 , 1, 0],
+			
+		}
+		rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+		PointFloat[] positions = [  (0,0,0), (4,4,4), (8,8,8), (12,12,12), (16,16,16)]
+		
+		def "Protos"
+		(
+			kind = "group"
+		)		
+		{
+
+			def "Proto1"  (
+				references = </ProtoRed>
+				kind = "group"
+			) {
+				token visibility = "visible"
+			}
+			def Xform "Proto2" (
+				references = </ProtoGreen>
+				kind = "group"
+			) {
+				token visibility = "visible"
+			}
+		}
+	}
+}
diff --git a/src/Tests/Integration/data/point_instances.usda b/src/Tests/Integration/data/point_instances.usda
new file mode 100644
index 0000000..bd94571
--- /dev/null
+++ b/src/Tests/Integration/data/point_instances.usda
@@ -0,0 +1,35 @@
+#usda 1.0
+
+def Xform "ProtoRed" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(1,0,0)]
+    }
+    token visibility = "invisible"
+}
+
+def Xform "ProtoGreen" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(0,1,0)]
+    }
+    token visibility = "invisible"
+}
+
+def PointInstancer "Instancer" {
+    int[] protoIndices = [ 0, 1, 1 ] 
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+    PointFloat[] positions = [ (0,0,0), (0,2.5,0), (2.5,2.5,2.5) ]
+
+    def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/prs_controller_data.usda b/src/Tests/Integration/data/prs_controller_data.usda
new file mode 100644
index 0000000..2cbd39e
--- /dev/null
+++ b/src/Tests/Integration/data/prs_controller_data.usda
@@ -0,0 +1,86 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.7.6.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 3
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-5, -5, 0), (5, 5, 10)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)],
+        }
+        color3f[] primvars:displayColor = [(0.13725491, 0.11764706, 0.61960787)]
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        texCoord2f[] primvars:st (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:st:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (0.799188, 0.344736, 0, 0), (-0.344736, 0.799188, 0, 0), (0, 0, 0.87037, 0), (12.963, 0, 0, 1) ),
+            2: ( (0.249384, 0.578136, 0, 0), (-0.578136, 0.249384, 0, 0), (0, 0, 0.62963, 0), (37.037, 0, 0, 1) ),
+            3: ( (-2.18557e-8, 0.5, 0, 0), (-0.5, -2.18557e-8, 0, 0), (0, 0, 0.5, 0), (50, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+        
+        double3 posVal.timeSamples = {
+            0: (10,10,10),
+            1: (20,20,20),
+            2: (30,30,30),
+            3: (40,40,40)
+        }
+        
+        double3 scaleVal.timeSamples = {
+            0: (1,1,1),
+            1: (2,2,2),
+            2: (3,3,3),
+            3: (4,4,4)
+        }
+        
+        quatf rotVal.timeSamples = {
+            0: (0.707,0.707,0,0), //euler (90,0,0)
+            1: (0.5,0.5,0.5, 0.5),  //euler (90,90,0)
+            2: (0.0,0.707,0.0,0.707), //euler (180,90,0)
+            3: (0.707,0.707,0,0) //euler (90,0,0)
+        }
+        
+        quatf rotGfQuatf = (0.5, 0.1,0.1,0.1)
+        quatd rotGfQuatd = (0.5, 0.2,0.2,0.2)
+        quath rotGfQuath = (0.5, 0.3,0.3,0.3)
+    }
+}
+
diff --git a/src/Tests/Integration/data/referencing_abc.usda b/src/Tests/Integration/data/referencing_abc.usda
new file mode 100644
index 0000000..2927d9f
--- /dev/null
+++ b/src/Tests/Integration/data/referencing_abc.usda
@@ -0,0 +1,16 @@
+#usda 1.0
+(
+    defaultPrim = "world"
+    endTimeCode = 5
+    framesPerSecond = 24
+    startTimeCode = 0
+    timeCodesPerSecond = 24
+    upAxis = "Y"
+)
+
+def Xform "world" {
+    def Xform "Cube1" (
+        prepend payload = @./cube_anim.abc@
+    ){
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/scene_graph_instances.usda b/src/Tests/Integration/data/scene_graph_instances.usda
new file mode 100644
index 0000000..823273b
--- /dev/null
+++ b/src/Tests/Integration/data/scene_graph_instances.usda
@@ -0,0 +1,171 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "scene_graph_instances"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "scene_graph_instances"
+{
+    def Xform "Box001" (
+        prepend inherits = </scene_graph_instances/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-40.5949, -2.98091, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box001"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-5, -5, 0), (5, 5, 10)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-5, -5, 0), (5, -5, 0), (-5, 5, 0), (5, 5, 0), (-5, -5, 10), (5, -5, 10), (-5, 5, 10), (5, 5, 10)]
+            color3f[] primvars:displayColor = [(0.54901963, 0.34509805, 0.88235295)]
+            texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+    }
+
+    def Xform "Box002" (
+        prepend inherits = </scene_graph_instances/_class_Box001>
+        instanceable = true
+    )
+    {
+        rel material:binding = </scene_graph_instances/Materials/Material__26>
+        matrix4d xformOp:transform = ( (0.332609, -0.292487, 0, 0), (0.230197, 0.261773, 0.273242, 0), (-0.180439, -0.20519, 0.348591, 0), (-25.4197, -2.98091, 20.6732, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box003" (
+        prepend inherits = </scene_graph_instances/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-9.60227, -2.98091, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box004" (
+        prepend inherits = </scene_graph_instances/_class_Box001>
+        instanceable = true
+    )
+    {
+        rel material:binding = </scene_graph_instances/Materials/Material__26>
+        matrix4d xformOp:transform = ( (0.822024, 0.569453, 0, 0), (-0.569453, 0.822024, 0, 0), (0, 0, 1, 0), (5.81184, -2.98091, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </scene_graph_instances/Materials/Material__26/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (1, 0, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/scene_graph_instances_animated.usda b/src/Tests/Integration/data/scene_graph_instances_animated.usda
new file mode 100644
index 0000000..ecedda2
--- /dev/null
+++ b/src/Tests/Integration/data/scene_graph_instances_animated.usda
@@ -0,0 +1,159 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.8.0"
+    }
+    defaultPrim = "scene_graph_instances_animated"
+    endTimeCode = 1
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "scene_graph_instances_animated"
+{
+    def Xform "Box001" (
+        prepend inherits = </scene_graph_instances_animated/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-21.1318, 3.37784, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-21.1318, 3.37784, 5, 1) )
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box001"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent.timeSamples = {
+                0: [(-7.956008, -10.527876, 0), (7.956008, 10.527876, 9.088205)],
+            }
+            int[] faceVertexCounts.timeSamples = {
+                0: [4, 4, 4, 4, 4, 4],
+            }
+            int[] faceVertexIndices.timeSamples = {
+                0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            }
+            point3f[] points.timeSamples = {
+                0: [(-7.956008, -10.527876, 0), (7.956008, -10.527876, 0), (-7.956008, 10.527876, 0), (7.956008, 10.527876, 0), (-7.956008, -10.527876, 9.088205), (7.956008, -10.527876, 9.088205), (-7.956008, 10.527876, 9.088205), (7.956008, 10.527876, 9.088205)],
+            }
+            color3f[] primvars:displayColor = [(0.54901963, 0.34509805, 0.88235295)]
+            texCoord2f[] primvars:map1 (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:map1.timeSamples = {
+                0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            }
+            int[] primvars:map1:indices.timeSamples = {
+                0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            }
+            float3[] primvars:normals (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals.timeSamples = {
+                0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            }
+            int[] primvars:normals:indices.timeSamples = {
+                0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            }
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+    }
+
+    def Xform "Box002" (
+        prepend inherits = </scene_graph_instances_animated/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (12.8674, 1.82818, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (12.8674, 1.82818, 10, 1) )
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/selection_consolidated_geometry.usda b/src/Tests/Integration/data/selection_consolidated_geometry.usda
new file mode 100644
index 0000000..1652298
--- /dev/null
+++ b/src/Tests/Integration/data/selection_consolidated_geometry.usda
@@ -0,0 +1,135 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.4.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-12.128525, -18.50723, 0), (12.128525, 18.50723, 16.926157)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-12.128525, -18.50723, 0), (12.128525, -18.50723, 0), (-12.128525, 18.50723, 0), (12.128525, 18.50723, 0), (-12.128525, -18.50723, 16.926157), (12.128525, -18.50723, 16.926157), (-12.128525, 18.50723, 16.926157), (12.128525, 18.50723, 16.926157)]
+        color3f[] primvars:displayColor = [(0.88235295, 0.56078434, 0.34117648)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-22.2311, -6.49783, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Sphere001" (
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 2
+            }
+        }
+    )
+    {
+        float3[] extent = [(-19.081064, -19.081064, -19.081064), (19.081064, 19.081064, 19.081064)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 5, 0, 5, 6, 0, 6, 7, 0, 7, 8, 0, 8, 9, 0, 9, 10, 0, 10, 11, 0, 11, 12, 0, 12, 13, 0, 13, 14, 0, 14, 15, 0, 15, 16, 0, 16, 17, 0, 17, 18, 0, 18, 19, 0, 19, 20, 0, 20, 21, 0, 21, 22, 0, 22, 23, 0, 23, 24, 0, 24, 25, 0, 25, 26, 0, 26, 27, 0, 27, 28, 0, 28, 29, 0, 29, 30, 0, 30, 31, 0, 31, 32, 0, 32, 1, 1, 33, 34, 2, 2, 34, 35, 3, 3, 35, 36, 4, 4, 36, 37, 5, 5, 37, 38, 6, 6, 38, 39, 7, 7, 39, 40, 8, 8, 40, 41, 9, 9, 41, 42, 10, 10, 42, 43, 11, 11, 43, 44, 12, 12, 44, 45, 13, 13, 45, 46, 14, 14, 46, 47, 15, 15, 47, 48, 16, 16, 48, 49, 17, 17, 49, 50, 18, 18, 50, 51, 19, 19, 51, 52, 20, 20, 52, 53, 21, 21, 53, 54, 22, 22, 54, 55, 23, 23, 55, 56, 24, 24, 56, 57, 25, 25, 57, 58, 26, 26, 58, 59, 27, 27, 59, 60, 28, 28, 60, 61, 29, 29, 61, 62, 30, 30, 62, 63, 31, 31, 63, 64, 32, 32, 64, 33, 1, 33, 65, 66, 34, 34, 66, 67, 35, 35, 67, 68, 36, 36, 68, 69, 37, 37, 69, 70, 38, 38, 70, 71, 39, 39, 71, 72, 40, 40, 72, 73, 41, 41, 73, 74, 42, 42, 74, 75, 43, 43, 75, 76, 44, 44, 76, 77, 45, 45, 77, 78, 46, 46, 78, 79, 47, 47, 79, 80, 48, 48, 80, 81, 49, 49, 81, 82, 50, 50, 82, 83, 51, 51, 83, 84, 52, 52, 84, 85, 53, 53, 85, 86, 54, 54, 86, 87, 55, 55, 87, 88, 56, 56, 88, 89, 57, 57, 89, 90, 58, 58, 90, 91, 59, 59, 91, 92, 60, 60, 92, 93, 61, 61, 93, 94, 62, 62, 94, 95, 63, 63, 95, 96, 64, 64, 96, 65, 33, 65, 97, 98, 66, 66, 98, 99, 67, 67, 99, 100, 68, 68, 100, 101, 69, 69, 101, 102, 70, 70, 102, 103, 71, 71, 103, 104, 72, 72, 104, 105, 73, 73, 105, 106, 74, 74, 106, 107, 75, 75, 107, 108, 76, 76, 108, 109, 77, 77, 109, 110, 78, 78, 110, 111, 79, 79, 111, 112, 80, 80, 112, 113, 81, 81, 113, 114, 82, 82, 114, 115, 83, 83, 115, 116, 84, 84, 116, 117, 85, 85, 117, 118, 86, 86, 118, 119, 87, 87, 119, 120, 88, 88, 120, 121, 89, 89, 121, 122, 90, 90, 122, 123, 91, 91, 123, 124, 92, 92, 124, 125, 93, 93, 125, 126, 94, 94, 126, 127, 95, 95, 127, 128, 96, 96, 128, 97, 65, 97, 129, 130, 98, 98, 130, 131, 99, 99, 131, 132, 100, 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-1.1920929e-7), (0.21874999, -1.1920929e-7), (0.24999999, -1.1920929e-7), (0.28124997, -1.1920929e-7), (0.31249997, -1.1920929e-7), (0.34374997, -1.1920929e-7), (0.375, -1.1920929e-7), (0.40625, -1.1920929e-7), (0.4375, -1.1920929e-7), (0.46875003, -1.1920929e-7), (0.50000006, -1.1920929e-7), (0.53125006, -1.1920929e-7), (0.56250006, -1.1920929e-7), (0.59375006, -1.1920929e-7), (0.62500006, -1.1920929e-7), (0.6562501, -1.1920929e-7), (0.6875001, -1.1920929e-7), (0.7187501, -1.1920929e-7), (0.7500001, -1.1920929e-7), (0.7812501, -1.1920929e-7), (0.8125002, -1.1920929e-7), (0.8437502, -1.1920929e-7), (0.8750002, -1.1920929e-7), (0.9062502, -1.1920929e-7), (0.9375002, -1.1920929e-7), (0.96875024, -1.1920929e-7)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:st:indices = [0, 32, 33, 1, 33, 34, 2, 34, 35, 3, 35, 36, 4, 36, 37, 5, 37, 38, 6, 38, 39, 7, 39, 40, 8, 40, 41, 9, 41, 42, 10, 42, 43, 11, 43, 44, 12, 44, 45, 13, 45, 46, 14, 46, 47, 15, 47, 48, 16, 48, 49, 17, 49, 50, 18, 50, 51, 19, 51, 52, 20, 52, 53, 21, 53, 54, 22, 54, 55, 23, 55, 56, 24, 56, 57, 25, 57, 58, 26, 58, 59, 27, 59, 60, 28, 60, 61, 29, 61, 62, 30, 62, 63, 31, 63, 64, 32, 65, 66, 33, 33, 66, 67, 34, 34, 67, 68, 35, 35, 68, 69, 36, 36, 69, 70, 37, 37, 70, 71, 38, 38, 71, 72, 39, 39, 72, 73, 40, 40, 73, 74, 41, 41, 74, 75, 42, 42, 75, 76, 43, 43, 76, 77, 44, 44, 77, 78, 45, 45, 78, 79, 46, 46, 79, 80, 47, 47, 80, 81, 48, 48, 81, 82, 49, 49, 82, 83, 50, 50, 83, 84, 51, 51, 84, 85, 52, 52, 85, 86, 53, 53, 86, 87, 54, 54, 87, 88, 55, 55, 88, 89, 56, 56, 89, 90, 57, 57, 90, 91, 58, 58, 91, 92, 59, 59, 92, 93, 60, 60, 93, 94, 61, 61, 94, 95, 62, 62, 95, 96, 63, 63, 96, 97, 64, 65, 98, 99, 66, 66, 99, 100, 67, 67, 100, 101, 68, 68, 101, 102, 69, 69, 102, 103, 70, 70, 103, 104, 71, 71, 104, 105, 72, 72, 105, 106, 73, 73, 106, 107, 74, 74, 107, 108, 75, 75, 108, 109, 76, 76, 109, 110, 77, 77, 110, 111, 78, 78, 111, 112, 79, 79, 112, 113, 80, 80, 113, 114, 81, 81, 114, 115, 82, 82, 115, 116, 83, 83, 116, 117, 84, 84, 117, 118, 85, 85, 118, 119, 86, 86, 119, 120, 87, 87, 120, 121, 88, 88, 121, 122, 89, 89, 122, 123, 90, 90, 123, 124, 91, 91, 124, 125, 92, 92, 125, 126, 93, 93, 126, 127, 94, 94, 127, 128, 95, 95, 128, 129, 96, 96, 129, 130, 97, 98, 131, 132, 99, 99, 132, 133, 100, 100, 133, 134, 101, 101, 134, 135, 102, 102, 135, 136, 103, 103, 136, 137, 104, 104, 137, 138, 105, 105, 138, 139, 106, 106, 139, 140, 107, 107, 140, 141, 108, 108, 141, 142, 109, 109, 142, 143, 110, 110, 143, 144, 111, 111, 144, 145, 112, 112, 145, 146, 113, 113, 146, 147, 114, 114, 147, 148, 115, 115, 148, 149, 116, 116, 149, 150, 117, 117, 150, 151, 118, 118, 151, 152, 119, 119, 152, 153, 120, 120, 153, 154, 121, 121, 154, 155, 122, 122, 155, 156, 123, 123, 156, 157, 124, 124, 157, 158, 125, 125, 158, 159, 126, 126, 159, 160, 127, 127, 160, 161, 128, 128, 161, 162, 129, 129, 162, 163, 130, 131, 164, 165, 132, 132, 165, 166, 133, 133, 166, 167, 134, 134, 167, 168, 135, 135, 168, 169, 136, 136, 169, 170, 137, 137, 170, 171, 138, 138, 171, 172, 139, 139, 172, 173, 140, 140, 173, 174, 141, 141, 174, 175, 142, 142, 175, 176, 143, 143, 176, 177, 144, 144, 177, 178, 145, 145, 178, 179, 146, 146, 179, 180, 147, 147, 180, 181, 148, 148, 181, 182, 149, 149, 182, 183, 150, 150, 183, 184, 151, 151, 184, 185, 152, 152, 185, 186, 153, 153, 186, 187, 154, 154, 187, 188, 155, 155, 188, 189, 156, 156, 189, 190, 157, 157, 190, 191, 158, 158, 191, 192, 159, 159, 192, 193, 160, 160, 193, 194, 161, 161, 194, 195, 162, 162, 195, 196, 163, 164, 197, 198, 165, 165, 198, 199, 166, 166, 199, 200, 167, 167, 200, 201, 168, 168, 201, 202, 169, 169, 202, 203, 170, 170, 203, 204, 171, 171, 204, 205, 172, 172, 205, 206, 173, 173, 206, 207, 174, 174, 207, 208, 175, 175, 208, 209, 176, 176, 209, 210, 177, 177, 210, 211, 178, 178, 211, 212, 179, 179, 212, 213, 180, 180, 213, 214, 181, 181, 214, 215, 182, 182, 215, 216, 183, 183, 216, 217, 184, 184, 217, 218, 185, 185, 218, 219, 186, 186, 219, 220, 187, 187, 220, 221, 188, 188, 221, 222, 189, 189, 222, 223, 190, 190, 223, 224, 191, 191, 224, 225, 192, 192, 225, 226, 193, 193, 226, 227, 194, 194, 227, 228, 195, 195, 228, 229, 196, 197, 230, 231, 198, 198, 231, 232, 199, 199, 232, 233, 200, 200, 233, 234, 201, 201, 234, 235, 202, 202, 235, 236, 203, 203, 236, 237, 204, 204, 237, 238, 205, 205, 238, 239, 206, 206, 239, 240, 207, 207, 240, 241, 208, 208, 241, 242, 209, 209, 242, 243, 210, 210, 243, 244, 211, 211, 244, 245, 212, 212, 245, 246, 213, 213, 246, 247, 214, 214, 247, 248, 215, 215, 248, 249, 216, 216, 249, 250, 217, 217, 250, 251, 218, 218, 251, 252, 219, 219, 252, 253, 220, 220, 253, 254, 221, 221, 254, 255, 222, 222, 255, 256, 223, 223, 256, 257, 224, 224, 257, 258, 225, 225, 258, 259, 226, 226, 259, 260, 227, 227, 260, 261, 228, 228, 261, 262, 229, 230, 263, 264, 231, 231, 264, 265, 232, 232, 265, 266, 233, 233, 266, 267, 234, 234, 267, 268, 235, 235, 268, 269, 236, 236, 269, 270, 237, 237, 270, 271, 238, 238, 271, 272, 239, 239, 272, 273, 240, 240, 273, 274, 241, 241, 274, 275, 242, 242, 275, 276, 243, 243, 276, 277, 244, 244, 277, 278, 245, 245, 278, 279, 246, 246, 279, 280, 247, 247, 280, 281, 248, 248, 281, 282, 249, 249, 282, 283, 250, 250, 283, 284, 251, 251, 284, 285, 252, 252, 285, 286, 253, 253, 286, 287, 254, 254, 287, 288, 255, 255, 288, 289, 256, 256, 289, 290, 257, 257, 290, 291, 258, 258, 291, 292, 259, 259, 292, 293, 260, 260, 293, 294, 261, 261, 294, 295, 262, 263, 296, 297, 264, 264, 297, 298, 265, 265, 298, 299, 266, 266, 299, 300, 267, 267, 300, 301, 268, 268, 301, 302, 269, 269, 302, 303, 270, 270, 303, 304, 271, 271, 304, 305, 272, 272, 305, 306, 273, 273, 306, 307, 274, 274, 307, 308, 275, 275, 308, 309, 276, 276, 309, 310, 277, 277, 310, 311, 278, 278, 311, 312, 279, 279, 312, 313, 280, 280, 313, 314, 281, 281, 314, 315, 282, 282, 315, 316, 283, 283, 316, 317, 284, 284, 317, 318, 285, 285, 318, 319, 286, 286, 319, 320, 287, 287, 320, 321, 288, 288, 321, 322, 289, 289, 322, 323, 290, 290, 323, 324, 291, 291, 324, 325, 292, 292, 325, 326, 293, 293, 326, 327, 294, 294, 327, 328, 295, 296, 329, 330, 297, 297, 330, 331, 298, 298, 331, 332, 299, 299, 332, 333, 300, 300, 333, 334, 301, 301, 334, 335, 302, 302, 335, 336, 303, 303, 336, 337, 304, 304, 337, 338, 305, 305, 338, 339, 306, 306, 339, 340, 307, 307, 340, 341, 308, 308, 341, 342, 309, 309, 342, 343, 310, 310, 343, 344, 311, 311, 344, 345, 312, 312, 345, 346, 313, 313, 346, 347, 314, 314, 347, 348, 315, 315, 348, 349, 316, 316, 349, 350, 317, 317, 350, 351, 318, 318, 351, 352, 319, 319, 352, 353, 320, 320, 353, 354, 321, 321, 354, 355, 322, 322, 355, 356, 323, 323, 356, 357, 324, 324, 357, 358, 325, 325, 358, 359, 326, 326, 359, 360, 327, 327, 360, 361, 328, 329, 362, 363, 330, 330, 363, 364, 331, 331, 364, 365, 332, 332, 365, 366, 333, 333, 366, 367, 334, 334, 367, 368, 335, 335, 368, 369, 336, 336, 369, 370, 337, 337, 370, 371, 338, 338, 371, 372, 339, 339, 372, 373, 340, 340, 373, 374, 341, 341, 374, 375, 342, 342, 375, 376, 343, 343, 376, 377, 344, 344, 377, 378, 345, 345, 378, 379, 346, 346, 379, 380, 347, 347, 380, 381, 348, 348, 381, 382, 349, 349, 382, 383, 350, 350, 383, 384, 351, 351, 384, 385, 352, 352, 385, 386, 353, 353, 386, 387, 354, 354, 387, 388, 355, 355, 388, 389, 356, 356, 389, 390, 357, 357, 390, 391, 358, 358, 391, 392, 359, 359, 392, 393, 360, 360, 393, 394, 361, 362, 395, 396, 363, 363, 396, 397, 364, 364, 397, 398, 365, 365, 398, 399, 366, 366, 399, 400, 367, 367, 400, 401, 368, 368, 401, 402, 369, 369, 402, 403, 370, 370, 403, 404, 371, 371, 404, 405, 372, 372, 405, 406, 373, 373, 406, 407, 374, 374, 407, 408, 375, 375, 408, 409, 376, 376, 409, 410, 377, 377, 410, 411, 378, 378, 411, 412, 379, 379, 412, 413, 380, 380, 413, 414, 381, 381, 414, 415, 382, 382, 415, 416, 383, 383, 416, 417, 384, 384, 417, 418, 385, 385, 418, 419, 386, 386, 419, 420, 387, 387, 420, 421, 388, 388, 421, 422, 389, 389, 422, 423, 390, 390, 423, 424, 391, 391, 424, 425, 392, 392, 425, 426, 393, 393, 426, 427, 394, 395, 428, 429, 396, 396, 429, 430, 397, 397, 430, 431, 398, 398, 431, 432, 399, 399, 432, 433, 400, 400, 433, 434, 401, 401, 434, 435, 402, 402, 435, 436, 403, 403, 436, 437, 404, 404, 437, 438, 405, 405, 438, 439, 406, 406, 439, 440, 407, 407, 440, 441, 408, 408, 441, 442, 409, 409, 442, 443, 410, 410, 443, 444, 411, 411, 444, 445, 412, 412, 445, 446, 413, 413, 446, 447, 414, 414, 447, 448, 415, 415, 448, 449, 416, 416, 449, 450, 417, 417, 450, 451, 418, 418, 451, 452, 419, 419, 452, 453, 420, 420, 453, 454, 421, 421, 454, 455, 422, 422, 455, 456, 423, 423, 456, 457, 424, 424, 457, 458, 425, 425, 458, 459, 426, 426, 459, 460, 427, 428, 461, 462, 429, 429, 462, 463, 430, 430, 463, 464, 431, 431, 464, 465, 432, 432, 465, 466, 433, 433, 466, 467, 434, 434, 467, 468, 435, 435, 468, 469, 436, 436, 469, 470, 437, 437, 470, 471, 438, 438, 471, 472, 439, 439, 472, 473, 440, 440, 473, 474, 441, 441, 474, 475, 442, 442, 475, 476, 443, 443, 476, 477, 444, 444, 477, 478, 445, 445, 478, 479, 446, 446, 479, 480, 447, 447, 480, 481, 448, 448, 481, 482, 449, 449, 482, 483, 450, 450, 483, 484, 451, 451, 484, 485, 452, 452, 485, 486, 453, 453, 486, 487, 454, 454, 487, 488, 455, 455, 488, 489, 456, 456, 489, 490, 457, 457, 490, 491, 458, 458, 491, 492, 459, 459, 492, 493, 460, 461, 494, 495, 462, 462, 495, 496, 463, 463, 496, 497, 464, 464, 497, 498, 465, 465, 498, 499, 466, 466, 499, 500, 467, 467, 500, 501, 468, 468, 501, 502, 469, 469, 502, 503, 470, 470, 503, 504, 471, 471, 504, 505, 472, 472, 505, 506, 473, 473, 506, 507, 474, 474, 507, 508, 475, 475, 508, 509, 476, 476, 509, 510, 477, 477, 510, 511, 478, 478, 511, 512, 479, 479, 512, 513, 480, 480, 513, 514, 481, 481, 514, 515, 482, 482, 515, 516, 483, 483, 516, 517, 484, 484, 517, 518, 485, 485, 518, 519, 486, 486, 519, 520, 487, 487, 520, 521, 488, 488, 521, 522, 489, 489, 522, 523, 490, 490, 523, 524, 491, 491, 524, 525, 492, 492, 525, 526, 493, 527, 495, 494, 528, 496, 495, 529, 497, 496, 530, 498, 497, 531, 499, 498, 532, 500, 499, 533, 501, 500, 534, 502, 501, 535, 503, 502, 536, 504, 503, 537, 505, 504, 538, 506, 505, 539, 507, 506, 540, 508, 507, 541, 509, 508, 542, 510, 509, 543, 511, 510, 544, 512, 511, 545, 513, 512, 546, 514, 513, 547, 515, 514, 548, 516, 515, 549, 517, 516, 550, 518, 517, 551, 519, 518, 552, 520, 519, 553, 521, 520, 554, 522, 521, 555, 523, 522, 556, 524, 523, 557, 525, 524, 558, 526, 525]
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (31.8095, 0.927589, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/selection_geometry.usda b/src/Tests/Integration/data/selection_geometry.usda
new file mode 100644
index 0000000..b724e56
--- /dev/null
+++ b/src/Tests/Integration/data/selection_geometry.usda
@@ -0,0 +1,110 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.4.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-8.557135, -7.6699142, 0), (8.557135, 7.6699142, 15.452562)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-8.557135, -7.6699142, 0), (8.557135, -7.6699142, 0), (-8.557135, 7.6699142, 0), (8.557135, 7.6699142, 0), (-8.557135, -7.6699142, 15.452562), (8.557135, -7.6699142, 15.452562), (-8.557135, 7.6699142, 15.452562), (8.557135, 7.6699142, 15.452562)]
+        color3f[] primvars:displayColor = [(0.5411765, 0.03137255, 0.43137255)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-0.969203, -1.29605, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/selection_hierarchy.usda b/src/Tests/Integration/data/selection_hierarchy.usda
new file mode 100644
index 0000000..67c9d2f
--- /dev/null
+++ b/src/Tests/Integration/data/selection_hierarchy.usda
@@ -0,0 +1,409 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.4.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Xform "Box001"
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-26.2406, -1.05894, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Mesh "Box001_Shape"
+        {
+            float3[] extent = [(-12.270506, -19.838436, 0), (12.270506, 19.838436, 10.472961)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-12.270506, -19.838436, 0), (12.270506, -19.838436, 0), (-12.270506, 19.838436, 0), (12.270506, 19.838436, 0), (-12.270506, -19.838436, 10.472961), (12.270506, -19.838436, 10.472961), (-12.270506, 19.838436, 10.472961), (12.270506, 19.838436, 10.472961)]
+            color3f[] primvars:displayColor = [(0.6, 0.89411765, 0.72156864)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Mesh "Box002"
+        {
+            float3[] extent = [(-9.678581, -11.415054, 0), (9.678581, 11.415054, 7.9405994)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-9.678581, -11.415054, 0), (9.678581, -11.415054, 0), (-9.678581, 11.415054, 0), (9.678581, 11.415054, 0), (-9.678581, -11.415054, 7.9405994), (9.678581, -11.415054, 7.9405994), (-9.678581, 11.415054, 7.9405994), (9.678581, 11.415054, 7.9405994)]
+            color3f[] primvars:displayColor = [(0.69411767, 0.34509805, 0.105882354)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (48.0886, 23.84444, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+
+        def Xform "Box003"
+        {
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (44.275999999999996, -35.12906, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def Mesh "Box003_Shape"
+            {
+                float3[] extent = [(-13.393346, -15.111807, 0), (13.393346, 15.111807, 9.788313)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+                point3f[] points = [(-13.393346, -15.111807, 0), (13.393346, -15.111807, 0), (-13.393346, 15.111807, 0), (13.393346, 15.111807, 0), (-13.393346, -15.111807, 9.788313), (13.393346, -15.111807, 9.788313), (-13.393346, 15.111807, 9.788313), (13.393346, 15.111807, 9.788313)]
+                color3f[] primvars:displayColor = [(0.10980392, 0.10980392, 0.69411767)]
+                float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+
+                def GeomSubset "_1_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 1
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [1]
+                }
+
+                def GeomSubset "_2_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 2
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [0]
+                }
+
+                def GeomSubset "_3_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 3
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [5]
+                }
+
+                def GeomSubset "_4_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 4
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [3]
+                }
+
+                def GeomSubset "_5_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 5
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [2]
+                }
+
+                def GeomSubset "_6_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 6
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [4]
+                }
+            }
+
+            def Mesh "Box004"
+            {
+                float3[] extent = [(-11.778112, -12.535772, 0), (11.778112, 12.535772, 11.930952)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+                point3f[] points = [(-11.778112, -12.535772, 0), (11.778112, -12.535772, 0), (-11.778112, 12.535772, 0), (11.778112, 12.535772, 0), (-11.778112, -12.535772, 11.930952), (11.778112, -12.535772, 11.930952), (-11.778112, 12.535772, 11.930952), (11.778112, 12.535772, 11.930952)]
+                color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.56078434)]
+                float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+                matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (49.1486, 33.29034, 0, 1) )
+                uniform token[] xformOpOrder = ["xformOp:transform"]
+
+                def GeomSubset "_1_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 1
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [1]
+                }
+
+                def GeomSubset "_2_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 2
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [0]
+                }
+
+                def GeomSubset "_3_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 3
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [5]
+                }
+
+                def GeomSubset "_4_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 4
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [3]
+                }
+
+                def GeomSubset "_5_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 5
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [2]
+                }
+
+                def GeomSubset "_6_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 6
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices = [4]
+                }
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/selection_instanced_geometry.usda b/src/Tests/Integration/data/selection_instanced_geometry.usda
new file mode 100644
index 0000000..064ad82
--- /dev/null
+++ b/src/Tests/Integration/data/selection_instanced_geometry.usda
@@ -0,0 +1,138 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.4.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Xform "Box001" (
+        prepend inherits = </root/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-0.969203, -1.29605, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    class Class "_class_Box001"
+    {
+        def Mesh "Box001"
+        {
+            float3[] extent = [(-8.557135, -7.6699142, 0), (8.557135, 7.6699142, 15.452562)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-8.557135, -7.6699142, 0), (8.557135, -7.6699142, 0), (-8.557135, 7.6699142, 0), (8.557135, 7.6699142, 0), (-8.557135, -7.6699142, 15.452562), (8.557135, -7.6699142, 15.452562), (-8.557135, 7.6699142, 15.452562), (8.557135, 7.6699142, 15.452562)]
+            color3f[] primvars:displayColor = [(0.5411765, 0.03137255, 0.43137255)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [1]
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [0]
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [5]
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [3]
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [2]
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices = [4]
+            }
+        }
+    }
+
+    def Xform "Box002" (
+        prepend inherits = </root/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (28.9225, -1.29605, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Xform "Box003" (
+        prepend inherits = </root/_class_Box001>
+        instanceable = true
+    )
+    {
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (58.8142, -1.29605, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/simpleMtlxRef.usda b/src/Tests/Integration/data/simpleMtlxRef.usda
new file mode 100644
index 0000000..3eec57d
--- /dev/null
+++ b/src/Tests/Integration/data/simpleMtlxRef.usda
@@ -0,0 +1,50 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.4.4.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Teapot001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+        customData = {
+            dictionary "3dsmax" = {
+                int matId = 1
+            }
+        }
+    )
+    {
+        float3[] extent = [(-27.43297, -18.288647, 0), (31.393873, 18.288647, 28.804619)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 9, 10, 1, 1, 10, 11, 2, 2, 11, 12, 3, 3, 12, 13, 4, 4, 13, 14, 5, 5, 14, 15, 6, 6, 15, 16, 7, 7, 16, 17, 8, 9, 18, 19, 10, 10, 19, 20, 11, 11, 20, 21, 12, 12, 21, 22, 13, 13, 22, 23, 14, 14, 23, 24, 15, 15, 24, 25, 16, 16, 25, 26, 17, 18, 27, 28, 19, 19, 28, 29, 20, 20, 29, 30, 21, 21, 30, 31, 22, 22, 31, 32, 23, 23, 32, 33, 24, 24, 33, 34, 25, 25, 34, 35, 26, 27, 36, 37, 28, 28, 37, 38, 29, 29, 38, 39, 30, 30, 39, 40, 31, 31, 40, 41, 32, 32, 41, 42, 33, 33, 42, 43, 34, 34, 43, 44, 35, 36, 45, 46, 37, 37, 46, 47, 38, 38, 47, 48, 39, 39, 48, 49, 40, 40, 49, 50, 41, 41, 50, 51, 42, 42, 51, 52, 43, 43, 52, 53, 44, 45, 54, 55, 46, 46, 55, 56, 47, 47, 56, 57, 48, 48, 57, 58, 49, 49, 58, 59, 50, 50, 59, 60, 51, 51, 60, 61, 52, 52, 61, 62, 53, 54, 63, 64, 55, 55, 64, 65, 56, 56, 65, 66, 57, 57, 66, 67, 58, 58, 67, 68, 59, 59, 68, 69, 60, 60, 69, 70, 61, 61, 70, 71, 62, 63, 72, 73, 64, 64, 73, 74, 65, 65, 74, 75, 66, 66, 75, 76, 67, 67, 76, 77, 68, 68, 77, 78, 69, 69, 78, 79, 70, 70, 79, 80, 71, 72, 81, 82, 73, 73, 82, 83, 74, 74, 83, 84, 75, 75, 84, 85, 76, 76, 85, 86, 77, 77, 86, 87, 78, 78, 87, 88, 79, 79, 88, 89, 80, 81, 90, 91, 82, 82, 91, 92, 83, 83, 92, 93, 84, 84, 93, 94, 85, 85, 94, 95, 86, 86, 95, 96, 87, 87, 96, 97, 88, 88, 97, 98, 89, 90, 99, 100, 91, 91, 100, 101, 92, 92, 101, 102, 93, 93, 102, 103, 94, 94, 103, 104, 95, 95, 104, 105, 96, 96, 105, 106, 97, 97, 106, 107, 98, 99, 108, 109, 100, 100, 109, 110, 101, 101, 110, 111, 102, 102, 111, 112, 103, 103, 112, 113, 104, 104, 113, 114, 105, 105, 114, 115, 106, 106, 115, 116, 107, 108, 117, 118, 109, 109, 118, 119, 110, 110, 119, 120, 111, 111, 120, 121, 112, 112, 121, 122, 113, 113, 122, 123, 114, 114, 123, 124, 115, 115, 124, 125, 116, 117, 126, 127, 118, 118, 127, 128, 119, 119, 128, 129, 120, 120, 129, 130, 121, 121, 130, 131, 122, 122, 131, 132, 123, 123, 132, 133, 124, 124, 133, 134, 125, 126, 135, 136, 127, 127, 136, 137, 128, 128, 137, 138, 129, 129, 138, 139, 130, 130, 139, 140, 131, 131, 140, 141, 132, 132, 141, 142, 133, 133, 142, 143, 134, 135, 144, 145, 136, 136, 145, 146, 137, 137, 146, 147, 138, 138, 147, 148, 139, 139, 148, 149, 140, 140, 149, 150, 141, 141, 150, 151, 142, 142, 151, 152, 143, 144, 153, 154, 145, 145, 154, 155, 146, 146, 155, 156, 147, 147, 156, 157, 148, 148, 157, 158, 149, 149, 158, 159, 150, 150, 159, 160, 151, 151, 160, 161, 152, 153, 162, 163, 154, 154, 163, 164, 155, 155, 164, 165, 156, 156, 165, 166, 157, 157, 166, 167, 158, 158, 167, 168, 159, 159, 168, 169, 160, 160, 169, 170, 161, 162, 171, 172, 163, 163, 172, 173, 164, 164, 173, 174, 165, 165, 174, 175, 166, 166, 175, 176, 167, 167, 176, 177, 168, 168, 177, 178, 169, 169, 178, 179, 170, 171, 180, 181, 172, 172, 181, 182, 173, 173, 182, 183, 174, 174, 183, 184, 175, 175, 184, 185, 176, 176, 185, 186, 177, 177, 186, 187, 178, 178, 187, 188, 179, 180, 189, 190, 181, 181, 190, 191, 182, 182, 191, 192, 183, 183, 192, 193, 184, 184, 193, 194, 185, 185, 194, 195, 186, 186, 195, 196, 187, 187, 196, 197, 188, 189, 198, 199, 190, 190, 199, 200, 191, 191, 200, 201, 192, 192, 201, 202, 193, 193, 202, 203, 194, 194, 203, 204, 195, 195, 204, 205, 196, 196, 205, 206, 197, 198, 207, 208, 199, 199, 208, 209, 200, 200, 209, 210, 201, 201, 210, 211, 202, 202, 211, 212, 203, 203, 212, 213, 204, 204, 213, 214, 205, 205, 214, 215, 206, 207, 216, 217, 208, 208, 217, 218, 209, 209, 218, 219, 210, 210, 219, 220, 211, 211, 220, 221, 212, 212, 221, 222, 213, 213, 222, 223, 214, 214, 223, 224, 215, 216, 225, 226, 217, 217, 226, 227, 218, 218, 227, 228, 219, 219, 228, 229, 220, 220, 229, 230, 221, 221, 230, 231, 222, 222, 231, 232, 223, 223, 232, 233, 224, 225, 234, 235, 226, 226, 235, 236, 227, 227, 236, 237, 228, 228, 237, 238, 229, 229, 238, 239, 230, 230, 239, 240, 231, 231, 240, 241, 232, 232, 241, 242, 233, 234, 243, 244, 235, 235, 244, 245, 236, 236, 245, 246, 237, 237, 246, 247, 238, 238, 247, 248, 239, 239, 248, 249, 240, 240, 249, 250, 241, 241, 250, 251, 242, 243, 252, 253, 244, 244, 253, 254, 245, 245, 254, 255, 246, 246, 255, 256, 247, 247, 256, 257, 248, 248, 257, 258, 249, 249, 258, 259, 250, 250, 259, 260, 251, 252, 261, 262, 253, 253, 262, 263, 254, 254, 263, 264, 255, 255, 264, 265, 256, 256, 265, 266, 257, 257, 266, 267, 258, 258, 267, 268, 259, 259, 268, 269, 260, 261, 270, 271, 262, 262, 271, 272, 263, 263, 272, 273, 264, 264, 273, 274, 265, 265, 274, 275, 266, 266, 275, 276, 267, 267, 276, 277, 268, 268, 277, 278, 269, 270, 279, 280, 271, 271, 280, 281, 272, 272, 281, 282, 273, 273, 282, 283, 274, 274, 283, 284, 275, 275, 284, 285, 276, 276, 285, 286, 277, 277, 286, 287, 278, 279, 0, 1, 280, 280, 1, 2, 281, 281, 2, 3, 282, 282, 3, 4, 283, 283, 4, 5, 284, 284, 5, 6, 285, 285, 6, 7, 286, 286, 7, 8, 287, 8, 17, 296, 288, 288, 296, 297, 289, 289, 297, 298, 290, 290, 298, 299, 291, 291, 299, 300, 292, 292, 300, 301, 293, 293, 301, 302, 294, 294, 302, 303, 295, 17, 26, 304, 296, 296, 304, 305, 297, 297, 305, 306, 298, 298, 306, 307, 299, 299, 307, 308, 300, 300, 308, 309, 301, 301, 309, 310, 302, 302, 310, 311, 303, 26, 35, 312, 304, 304, 312, 313, 305, 305, 313, 314, 306, 306, 314, 315, 307, 307, 315, 316, 308, 308, 316, 317, 309, 309, 317, 318, 310, 310, 318, 319, 311, 35, 44, 320, 312, 312, 320, 321, 313, 313, 321, 322, 314, 314, 322, 323, 315, 315, 323, 324, 316, 316, 324, 325, 317, 317, 325, 326, 318, 318, 326, 327, 319, 44, 53, 328, 320, 320, 328, 329, 321, 321, 329, 330, 322, 322, 330, 331, 323, 323, 331, 332, 324, 324, 332, 333, 325, 325, 333, 334, 326, 326, 334, 335, 327, 53, 62, 336, 328, 328, 336, 337, 329, 329, 337, 338, 330, 330, 338, 339, 331, 331, 339, 340, 332, 332, 340, 341, 333, 333, 341, 342, 334, 334, 342, 343, 335, 62, 71, 344, 336, 336, 344, 345, 337, 337, 345, 346, 338, 338, 346, 347, 339, 339, 347, 348, 340, 340, 348, 349, 341, 341, 349, 350, 342, 342, 350, 351, 343, 71, 80, 352, 344, 344, 352, 353, 345, 345, 353, 354, 346, 346, 354, 355, 347, 347, 355, 356, 348, 348, 356, 357, 349, 349, 357, 358, 350, 350, 358, 359, 351, 80, 89, 360, 352, 352, 360, 361, 353, 353, 361, 362, 354, 354, 362, 363, 355, 355, 363, 364, 356, 356, 364, 365, 357, 357, 365, 366, 358, 358, 366, 367, 359, 89, 98, 368, 360, 360, 368, 369, 361, 361, 369, 370, 362, 362, 370, 371, 363, 363, 371, 372, 364, 364, 372, 373, 365, 365, 373, 374, 366, 366, 374, 375, 367, 98, 107, 376, 368, 368, 376, 377, 369, 369, 377, 378, 370, 370, 378, 379, 371, 371, 379, 380, 372, 372, 380, 381, 373, 373, 381, 382, 374, 374, 382, 383, 375, 107, 116, 384, 376, 376, 384, 385, 377, 377, 385, 386, 378, 378, 386, 387, 379, 379, 387, 388, 380, 380, 388, 389, 381, 381, 389, 390, 382, 382, 390, 391, 383, 116, 125, 392, 384, 384, 392, 393, 385, 385, 393, 394, 386, 386, 394, 395, 387, 387, 395, 396, 388, 388, 396, 397, 389, 389, 397, 398, 390, 390, 398, 399, 391, 125, 134, 400, 392, 392, 400, 401, 393, 393, 401, 402, 394, 394, 402, 403, 395, 395, 403, 404, 396, 396, 404, 405, 397, 397, 405, 406, 398, 398, 406, 407, 399, 134, 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+        rel material:binding = </root/mtl/Material__43>
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0.125), (0.375, 0), (0.3125, 1), (0.3125, 0.875), (0.3125, 0.75), (0.3125, 0.625), (0.3125, 0.5), (0.3125, 0.375), (0.3125, 0.25), (0.3125, 0.125), (0.3125, 0), (0.25, 1), (0.25, 0.875), (0.25, 0.75), (0.25, 0.625), (0.25, 0.5), (0.25, 0.375), (0.25, 0.25), (0.25, 0.125), (0.25, 0), (0.1875, 1), (0.1875, 0.875), (0.1875, 0.75), (0.1875, 0.625), (0.1875, 0.5), (0.1875, 0.375), (0.1875, 0.25), (0.1875, 0.125), (0.1875, 0), (0.125, 1), (0.125, 0.875), (0.125, 0.75), (0.125, 0.625), (0.125, 0.5), (0.125, 0.375), (0.125, 0.25), (0.125, 0.125), (0.125, 0), (0.0625, 1), (0.0625, 0.875), (0.0625, 0.75), (0.0625, 0.625), (0.0625, 0.5), (0.0625, 0.375), (0.0625, 0.25), (0.0625, 0.125), (0.0625, 0), (0, 1), (0, 0.875), (0, 0.75), (0, 0.625), (0, 0.5), (0, 0.375), (0, 0.25), (0, 0.125), (0, 0), (1, 1), (1, 0.875), (1, 0.75), (1, 0.625), (1, 0.5), (1, 0.375), (1, 0.25), (1, 0.125), (1, 0), (0.9375, 1), (0.9375, 0.875), (0.9375, 0.75), (0.9375, 0.625), (0.9375, 0.5), (0.9375, 0.375), (0.9375, 0.25), (0.9375, 0.125), (0.9375, 0), (0.875, 1), (0.875, 0.875), (0.875, 0.75), (0.875, 0.625), (0.875, 0.5), (0.875, 0.375), (0.875, 0.25), (0.875, 0.125), (0.875, 0), (0.8125, 1), (0.8125, 0.875), (0.8125, 0.75), (0.8125, 0.625), (0.8125, 0.5), (0.8125, 0.375), (0.8125, 0.25), (0.8125, 0.125), (0.8125, 0), (0.75, 1), (0.75, 0.875), (0.75, 0.75), (0.75, 0.625), (0.75, 0.5), (0.75, 0.375), (0.75, 0.25), (0.75, 0.125), (0.75, 0), (0.6875, 1), (0.6875, 0.875), (0.6875, 0.75), (0.6875, 0.625), (0.6875, 0.5), (0.6875, 0.375), (0.6875, 0.25), (0.6875, 0.125), (0.6875, 0), (0.625, 1), (0.625, 0.875), (0.625, 0.75), (0.625, 0.625), (0.625, 0.5), (0.625, 0.375), (0.625, 0.25), (0.625, 0.125), (0.625, 0), (0.5625, 1), (0.5625, 0.875), (0.5625, 0.75), (0.5625, 0.625), (0.5625, 0.5), (0.5625, 0.375), (0.5625, 0.25), (0.5625, 0.125), (0.5625, 0), (0.5, 1), (0.5, 0.875), (0.5, 0.75), (0.5, 0.625), (0.5, 0.5), (0.5, 0.375), (0.5, 0.25), (0.5, 0.125), (0.5, 0), (0.5, 1), (0.5, 0.875), (0.5, 0.75), (0.5, 0.625), (0.5, 0.5), (0.5, 0.375), (0.5, 0.25), (0.5, 0.125), (0.5, 0), (0.4375, 1), (0.4375, 0.875), (0.4375, 0.75), (0.4375, 0.625), (0.4375, 0.5), (0.4375, 0.375), (0.4375, 0.25), (0.4375, 0.125), (0.4375, 0), (0.375, 1), (0.375, 0.875), (0.375, 0.75), (0.375, 0.625), (0.375, 0.5), (0.375, 0.375), (0.375, 0.25), (0.375, 0.125), (0.375, 0), (0.3125, 1), (0.3125, 0.875), (0.3125, 0.75), (0.3125, 0.625), (0.3125, 0.5), (0.3125, 0.375), (0.3125, 0.25), (0.3125, 0.125), (0.3125, 0), (0.25, 1), (0.25, 0.875), (0.25, 0.75), (0.25, 0.625), (0.25, 0.5), (0.25, 0.375), (0.25, 0.25), (0.25, 0.125), (0.25, 0), (0.1875, 1), (0.1875, 0.875), (0.1875, 0.75), (0.1875, 0.625), (0.1875, 0.5), (0.1875, 0.375), (0.1875, 0.25), (0.1875, 0.125), (0.1875, 0), (0.125, 1), (0.125, 0.875), (0.125, 0.75), (0.125, 0.625), (0.125, 0.5), (0.125, 0.375), (0.125, 0.25), (0.125, 0.125), (0.125, 0), (0.0625, 1), (0.0625, 0.875), (0.0625, 0.75), (0.0625, 0.625), (0.0625, 0.5), (0.0625, 0.375), (0.0625, 0.25), (0.0625, 0.125), (0.0625, 0), (0, 1), (0, 0.875), (0, 0.75), (0, 0.625), (0, 0.5), (0, 0.375), (0, 0.25), (0, 0.125), (0, 0)] (
+            interpolation = "faceVarying"
+        )
+        int[] primvars:st:indices = [0, 9, 10, 1, 1, 10, 11, 2, 2, 11, 12, 3, 3, 12, 13, 4, 4, 13, 14, 5, 5, 14, 15, 6, 6, 15, 16, 7, 7, 16, 17, 8, 9, 18, 19, 10, 10, 19, 20, 11, 11, 20, 21, 12, 12, 21, 22, 13, 13, 22, 23, 14, 14, 23, 24, 15, 15, 24, 25, 16, 16, 25, 26, 17, 18, 27, 28, 19, 19, 28, 29, 20, 20, 29, 30, 21, 21, 30, 31, 22, 22, 31, 32, 23, 23, 32, 33, 24, 24, 33, 34, 25, 25, 34, 35, 26, 27, 36, 37, 28, 28, 37, 38, 29, 29, 38, 39, 30, 30, 39, 40, 31, 31, 40, 41, 32, 32, 41, 42, 33, 33, 42, 43, 34, 34, 43, 44, 35, 36, 45, 46, 37, 37, 46, 47, 38, 38, 47, 48, 39, 39, 48, 49, 40, 40, 49, 50, 41, 41, 50, 51, 42, 42, 51, 52, 43, 43, 52, 53, 44, 45, 54, 55, 46, 46, 55, 56, 47, 47, 56, 57, 48, 48, 57, 58, 49, 49, 58, 59, 50, 50, 59, 60, 51, 51, 60, 61, 52, 52, 61, 62, 53, 54, 63, 64, 55, 55, 64, 65, 56, 56, 65, 66, 57, 57, 66, 67, 58, 58, 67, 68, 59, 59, 68, 69, 60, 60, 69, 70, 61, 61, 70, 71, 62, 63, 72, 73, 64, 64, 73, 74, 65, 65, 74, 75, 66, 66, 75, 76, 67, 67, 76, 77, 68, 68, 77, 78, 69, 69, 78, 79, 70, 70, 79, 80, 71, 81, 90, 91, 82, 82, 91, 92, 83, 83, 92, 93, 84, 84, 93, 94, 85, 85, 94, 95, 86, 86, 95, 96, 87, 87, 96, 97, 88, 88, 97, 98, 89, 90, 99, 100, 91, 91, 100, 101, 92, 92, 101, 102, 93, 93, 102, 103, 94, 94, 103, 104, 95, 95, 104, 105, 96, 96, 105, 106, 97, 97, 106, 107, 98, 99, 108, 109, 100, 100, 109, 110, 101, 101, 110, 111, 102, 102, 111, 112, 103, 103, 112, 113, 104, 104, 113, 114, 105, 105, 114, 115, 106, 106, 115, 116, 107, 108, 117, 118, 109, 109, 118, 119, 110, 110, 119, 120, 111, 111, 120, 121, 112, 112, 121, 122, 113, 113, 122, 123, 114, 114, 123, 124, 115, 115, 124, 125, 116, 117, 126, 127, 118, 118, 127, 128, 119, 119, 128, 129, 120, 120, 129, 130, 121, 121, 130, 131, 122, 122, 131, 132, 123, 123, 132, 133, 124, 124, 133, 134, 125, 126, 135, 136, 127, 127, 136, 137, 128, 128, 137, 138, 129, 129, 138, 139, 130, 130, 139, 140, 131, 131, 140, 141, 132, 132, 141, 142, 133, 133, 142, 143, 134, 135, 144, 145, 136, 136, 145, 146, 137, 137, 146, 147, 138, 138, 147, 148, 139, 139, 148, 149, 140, 140, 149, 150, 141, 141, 150, 151, 142, 142, 151, 152, 143, 144, 153, 154, 145, 145, 154, 155, 146, 146, 155, 156, 147, 147, 156, 157, 148, 148, 157, 158, 149, 149, 158, 159, 150, 150, 159, 160, 151, 151, 160, 161, 152, 162, 171, 172, 163, 163, 172, 173, 164, 164, 173, 174, 165, 165, 174, 175, 166, 166, 175, 176, 167, 167, 176, 177, 168, 168, 177, 178, 169, 169, 178, 179, 170, 171, 180, 181, 172, 172, 181, 182, 173, 173, 182, 183, 174, 174, 183, 184, 175, 175, 184, 185, 176, 176, 185, 186, 177, 177, 186, 187, 178, 178, 187, 188, 179, 180, 189, 190, 181, 181, 190, 191, 182, 182, 191, 192, 183, 183, 192, 193, 184, 184, 193, 194, 185, 185, 194, 195, 186, 186, 195, 196, 187, 187, 196, 197, 188, 189, 198, 199, 190, 190, 199, 200, 191, 191, 200, 201, 192, 192, 201, 202, 193, 193, 202, 203, 194, 194, 203, 204, 195, 195, 204, 205, 196, 196, 205, 206, 197, 198, 207, 208, 199, 199, 208, 209, 200, 200, 209, 210, 201, 201, 210, 211, 202, 202, 211, 212, 203, 203, 212, 213, 204, 204, 213, 214, 205, 205, 214, 215, 206, 207, 216, 217, 208, 208, 217, 218, 209, 209, 218, 219, 210, 210, 219, 220, 211, 211, 220, 221, 212, 212, 221, 222, 213, 213, 222, 223, 214, 214, 223, 224, 215, 216, 225, 226, 217, 217, 226, 227, 218, 218, 227, 228, 219, 219, 228, 229, 220, 220, 229, 230, 221, 221, 230, 231, 222, 222, 231, 232, 223, 223, 232, 233, 224, 225, 234, 235, 226, 226, 235, 236, 227, 227, 236, 237, 228, 228, 237, 238, 229, 229, 238, 239, 230, 230, 239, 240, 231, 231, 240, 241, 232, 232, 241, 242, 233, 243, 252, 253, 244, 244, 253, 254, 245, 245, 254, 255, 246, 246, 255, 256, 247, 247, 256, 257, 248, 248, 257, 258, 249, 249, 258, 259, 250, 250, 259, 260, 251, 252, 261, 262, 253, 253, 262, 263, 254, 254, 263, 264, 255, 255, 264, 265, 256, 256, 265, 266, 257, 257, 266, 267, 258, 258, 267, 268, 259, 259, 268, 269, 260, 261, 270, 271, 262, 262, 271, 272, 263, 263, 272, 273, 264, 264, 273, 274, 265, 265, 274, 275, 266, 266, 275, 276, 267, 267, 276, 277, 268, 268, 277, 278, 269, 270, 279, 280, 271, 271, 280, 281, 272, 272, 281, 282, 273, 273, 282, 283, 274, 274, 283, 284, 275, 275, 284, 285, 276, 276, 285, 286, 277, 277, 286, 287, 278, 279, 288, 289, 280, 280, 289, 290, 281, 281, 290, 291, 282, 282, 291, 292, 283, 283, 292, 293, 284, 284, 293, 294, 285, 285, 294, 295, 286, 286, 295, 296, 287, 288, 297, 298, 289, 289, 298, 299, 290, 290, 299, 300, 291, 291, 300, 301, 292, 292, 301, 302, 293, 293, 302, 303, 294, 294, 303, 304, 295, 295, 304, 305, 296, 297, 306, 307, 298, 298, 307, 308, 299, 299, 308, 309, 300, 300, 309, 310, 301, 301, 310, 311, 302, 302, 311, 312, 303, 303, 312, 313, 304, 304, 313, 314, 305, 306, 315, 316, 307, 307, 316, 317, 308, 308, 317, 318, 309, 309, 318, 319, 310, 310, 319, 320, 311, 311, 320, 321, 312, 312, 321, 322, 313, 313, 322, 323, 314, 324, 333, 334, 325, 325, 334, 335, 326, 326, 335, 336, 327, 327, 336, 337, 328, 328, 337, 338, 329, 329, 338, 339, 330, 330, 339, 340, 331, 331, 340, 341, 332, 333, 342, 343, 334, 334, 343, 344, 335, 335, 344, 345, 336, 336, 345, 346, 337, 337, 346, 347, 338, 338, 347, 348, 339, 339, 348, 349, 340, 340, 349, 350, 341, 342, 351, 352, 343, 343, 352, 353, 344, 344, 353, 354, 345, 345, 354, 355, 346, 346, 355, 356, 347, 347, 356, 357, 348, 348, 357, 358, 349, 349, 358, 359, 350, 351, 360, 361, 352, 352, 361, 362, 353, 353, 362, 363, 354, 354, 363, 364, 355, 355, 364, 365, 356, 356, 365, 366, 357, 357, 366, 367, 358, 358, 367, 368, 359, 360, 369, 370, 361, 361, 370, 371, 362, 362, 371, 372, 363, 363, 372, 373, 364, 364, 373, 374, 365, 365, 374, 375, 366, 366, 375, 376, 367, 367, 376, 377, 368, 369, 378, 379, 370, 370, 379, 380, 371, 371, 380, 381, 372, 372, 381, 382, 373, 373, 382, 383, 374, 374, 383, 384, 375, 375, 384, 385, 376, 376, 385, 386, 377, 378, 387, 388, 379, 379, 388, 389, 380, 380, 389, 390, 381, 381, 390, 391, 382, 382, 391, 392, 383, 383, 392, 393, 384, 384, 393, 394, 385, 385, 394, 395, 386, 387, 396, 397, 388, 388, 397, 398, 389, 389, 398, 399, 390, 390, 399, 400, 391, 391, 400, 401, 392, 392, 401, 402, 393, 393, 402, 403, 394, 394, 403, 404, 395, 405, 414, 415, 406, 406, 415, 416, 407, 407, 416, 417, 408, 408, 417, 418, 409, 409, 418, 419, 410, 410, 419, 420, 411, 411, 420, 421, 412, 412, 421, 422, 413, 414, 423, 424, 415, 415, 424, 425, 416, 416, 425, 426, 417, 417, 426, 427, 418, 418, 427, 428, 419, 419, 428, 429, 420, 420, 429, 430, 421, 421, 430, 431, 422, 423, 432, 433, 424, 424, 433, 434, 425, 425, 434, 435, 426, 426, 435, 436, 427, 427, 436, 437, 428, 428, 437, 438, 429, 429, 438, 439, 430, 430, 439, 440, 431, 432, 441, 442, 433, 433, 442, 443, 434, 434, 443, 444, 435, 435, 444, 445, 436, 436, 445, 446, 437, 437, 446, 447, 438, 438, 447, 448, 439, 439, 448, 449, 440, 441, 450, 451, 442, 442, 451, 452, 443, 443, 452, 453, 444, 444, 453, 454, 445, 445, 454, 455, 446, 446, 455, 456, 447, 447, 456, 457, 448, 448, 457, 458, 449, 450, 459, 460, 451, 451, 460, 461, 452, 452, 461, 462, 453, 453, 462, 463, 454, 454, 463, 464, 455, 455, 464, 465, 456, 456, 465, 466, 457, 457, 466, 467, 458, 459, 468, 469, 460, 460, 469, 470, 461, 461, 470, 471, 462, 462, 471, 472, 463, 463, 472, 473, 464, 464, 473, 474, 465, 465, 474, 475, 466, 466, 475, 476, 467, 468, 477, 478, 469, 469, 478, 479, 470, 470, 479, 480, 471, 471, 480, 481, 472, 472, 481, 482, 473, 473, 482, 483, 474, 474, 483, 484, 475, 475, 484, 485, 476, 486, 495, 496, 487, 487, 496, 497, 488, 488, 497, 498, 489, 489, 498, 499, 490, 490, 499, 500, 491, 491, 500, 501, 492, 492, 501, 502, 493, 493, 502, 503, 494, 495, 504, 505, 496, 496, 505, 506, 497, 497, 506, 507, 498, 498, 507, 508, 499, 499, 508, 509, 500, 500, 509, 510, 501, 501, 510, 511, 502, 502, 511, 512, 503, 504, 513, 514, 505, 505, 514, 515, 506, 506, 515, 516, 507, 507, 516, 517, 508, 508, 517, 518, 509, 509, 518, 519, 510, 510, 519, 520, 511, 511, 520, 521, 512, 513, 522, 523, 514, 514, 523, 524, 515, 515, 524, 525, 516, 516, 525, 526, 517, 517, 526, 527, 518, 518, 527, 528, 519, 519, 528, 529, 520, 520, 529, 530, 521, 522, 531, 532, 523, 523, 532, 533, 524, 524, 533, 534, 525, 525, 534, 535, 526, 526, 535, 536, 527, 527, 536, 537, 528, 528, 537, 538, 529, 529, 538, 539, 530, 531, 540, 541, 532, 532, 541, 542, 533, 533, 542, 543, 534, 534, 543, 544, 535, 535, 544, 545, 536, 536, 545, 546, 537, 537, 546, 547, 538, 538, 547, 548, 539, 540, 549, 550, 541, 541, 550, 551, 542, 542, 551, 552, 543, 543, 552, 553, 544, 544, 553, 554, 545, 545, 554, 555, 546, 546, 555, 556, 547, 547, 556, 557, 548, 549, 558, 559, 550, 550, 559, 560, 551, 551, 560, 561, 552, 552, 561, 562, 553, 553, 562, 563, 554, 554, 563, 564, 555, 555, 564, 565, 556, 556, 565, 566, 557, 567, 576, 577, 568, 568, 577, 578, 569, 569, 578, 579, 570, 570, 579, 580, 571, 571, 580, 581, 572, 572, 581, 582, 573, 573, 582, 583, 574, 574, 583, 584, 575, 576, 585, 586, 577, 577, 586, 587, 578, 578, 587, 588, 579, 579, 588, 589, 580, 580, 589, 590, 581, 581, 590, 591, 582, 582, 591, 592, 583, 583, 592, 593, 584, 585, 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2247, 2248, 2239, 2239, 2248, 2249, 2240, 2240, 2249, 2250, 2241, 2241, 2250, 2251, 2242, 2252, 2244, 2243, 2244, 2252, 2253, 2245, 2245, 2253, 2254, 2246, 2246, 2254, 2255, 2247, 2247, 2255, 2256, 2248, 2248, 2256, 2257, 2249, 2249, 2257, 2258, 2250, 2250, 2258, 2259, 2251, 2260, 2269, 2270, 2261, 2261, 2270, 2271, 2262, 2262, 2271, 2272, 2263, 2263, 2272, 2273, 2264, 2264, 2273, 2274, 2265, 2265, 2274, 2275, 2266, 2266, 2275, 2276, 2267, 2267, 2276, 2277, 2268, 2269, 2278, 2279, 2270, 2270, 2279, 2280, 2271, 2271, 2280, 2281, 2272, 2272, 2281, 2282, 2273, 2273, 2282, 2283, 2274, 2274, 2283, 2284, 2275, 2275, 2284, 2285, 2276, 2276, 2285, 2286, 2277, 2278, 2287, 2288, 2279, 2279, 2288, 2289, 2280, 2280, 2289, 2290, 2281, 2281, 2290, 2291, 2282, 2282, 2291, 2292, 2283, 2283, 2292, 2293, 2284, 2284, 2293, 2294, 2285, 2285, 2294, 2295, 2286, 2287, 2296, 2297, 2288, 2288, 2297, 2298, 2289, 2289, 2298, 2299, 2290, 2290, 2299, 2300, 2291, 2291, 2300, 2301, 2292, 2292, 2301, 2302, 2293, 2293, 2302, 2303, 2294, 2294, 2303, 2304, 2295, 2296, 2305, 2306, 2297, 2297, 2306, 2307, 2298, 2298, 2307, 2308, 2299, 2299, 2308, 2309, 2300, 2300, 2309, 2310, 2301, 2301, 2310, 2311, 2302, 2302, 2311, 2312, 2303, 2303, 2312, 2313, 2304, 2305, 2314, 2315, 2306, 2306, 2315, 2316, 2307, 2307, 2316, 2317, 2308, 2308, 2317, 2318, 2309, 2309, 2318, 2319, 2310, 2310, 2319, 2320, 2311, 2311, 2320, 2321, 2312, 2312, 2321, 2322, 2313, 2314, 2323, 2324, 2315, 2315, 2324, 2325, 2316, 2316, 2325, 2326, 2317, 2317, 2326, 2327, 2318, 2318, 2327, 2328, 2319, 2319, 2328, 2329, 2320, 2320, 2329, 2330, 2321, 2321, 2330, 2331, 2322, 2323, 2332, 2333, 2324, 2324, 2333, 2334, 2325, 2325, 2334, 2335, 2326, 2326, 2335, 2336, 2327, 2327, 2336, 2337, 2328, 2328, 2337, 2338, 2329, 2329, 2338, 2339, 2330, 2330, 2339, 2340, 2331, 2341, 2350, 2351, 2342, 2342, 2351, 2352, 2343, 2343, 2352, 2353, 2344, 2344, 2353, 2354, 2345, 2345, 2354, 2355, 2346, 2346, 2355, 2356, 2347, 2347, 2356, 2357, 2348, 2348, 2357, 2358, 2349, 2350, 2359, 2360, 2351, 2351, 2360, 2361, 2352, 2352, 2361, 2362, 2353, 2353, 2362, 2363, 2354, 2354, 2363, 2364, 2355, 2355, 2364, 2365, 2356, 2356, 2365, 2366, 2357, 2357, 2366, 2367, 2358, 2359, 2368, 2369, 2360, 2360, 2369, 2370, 2361, 2361, 2370, 2371, 2362, 2362, 2371, 2372, 2363, 2363, 2372, 2373, 2364, 2364, 2373, 2374, 2365, 2365, 2374, 2375, 2366, 2366, 2375, 2376, 2367, 2368, 2377, 2378, 2369, 2369, 2378, 2379, 2370, 2370, 2379, 2380, 2371, 2371, 2380, 2381, 2372, 2372, 2381, 2382, 2373, 2373, 2382, 2383, 2374, 2374, 2383, 2384, 2375, 2375, 2384, 2385, 2376, 2377, 2386, 2387, 2378, 2378, 2387, 2388, 2379, 2379, 2388, 2389, 2380, 2380, 2389, 2390, 2381, 2381, 2390, 2391, 2382, 2382, 2391, 2392, 2383, 2383, 2392, 2393, 2384, 2384, 2393, 2394, 2385, 2386, 2395, 2396, 2387, 2387, 2396, 2397, 2388, 2388, 2397, 2398, 2389, 2389, 2398, 2399, 2390, 2390, 2399, 2400, 2391, 2391, 2400, 2401, 2392, 2392, 2401, 2402, 2393, 2393, 2402, 2403, 2394, 2395, 2404, 2405, 2396, 2396, 2405, 2406, 2397, 2397, 2406, 2407, 2398, 2398, 2407, 2408, 2399, 2399, 2408, 2409, 2400, 2400, 2409, 2410, 2401, 2401, 2410, 2411, 2402, 2402, 2411, 2412, 2403, 2404, 2413, 2414, 2405, 2405, 2414, 2415, 2406, 2406, 2415, 2416, 2407, 2407, 2416, 2417, 2408, 2408, 2417, 2418, 2409, 2409, 2418, 2419, 2410, 2410, 2419, 2420, 2411, 2411, 2420, 2421, 2412, 2422, 2431, 2432, 2423, 2423, 2432, 2433, 2424, 2424, 2433, 2434, 2425, 2425, 2434, 2435, 2426, 2426, 2435, 2436, 2427, 2427, 2436, 2437, 2428, 2428, 2437, 2438, 2429, 2429, 2438, 2439, 2430, 2431, 2440, 2441, 2432, 2432, 2441, 2442, 2433, 2433, 2442, 2443, 2434, 2434, 2443, 2444, 2435, 2435, 2444, 2445, 2436, 2436, 2445, 2446, 2437, 2437, 2446, 2447, 2438, 2438, 2447, 2448, 2439, 2440, 2449, 2450, 2441, 2441, 2450, 2451, 2442, 2442, 2451, 2452, 2443, 2443, 2452, 2453, 2444, 2444, 2453, 2454, 2445, 2445, 2454, 2455, 2446, 2446, 2455, 2456, 2447, 2447, 2456, 2457, 2448, 2449, 2458, 2459, 2450, 2450, 2459, 2460, 2451, 2451, 2460, 2461, 2452, 2452, 2461, 2462, 2453, 2453, 2462, 2463, 2454, 2454, 2463, 2464, 2455, 2455, 2464, 2465, 2456, 2456, 2465, 2466, 2457, 2458, 2467, 2468, 2459, 2459, 2468, 2469, 2460, 2460, 2469, 2470, 2461, 2461, 2470, 2471, 2462, 2462, 2471, 2472, 2463, 2463, 2472, 2473, 2464, 2464, 2473, 2474, 2465, 2465, 2474, 2475, 2466, 2467, 2476, 2477, 2468, 2468, 2477, 2478, 2469, 2469, 2478, 2479, 2470, 2470, 2479, 2480, 2471, 2471, 2480, 2481, 2472, 2472, 2481, 2482, 2473, 2473, 2482, 2483, 2474, 2474, 2483, 2484, 2475, 2476, 2485, 2486, 2477, 2477, 2486, 2487, 2478, 2478, 2487, 2488, 2479, 2479, 2488, 2489, 2480, 2480, 2489, 2490, 2481, 2481, 2490, 2491, 2482, 2482, 2491, 2492, 2483, 2483, 2492, 2493, 2484, 2485, 2494, 2495, 2486, 2486, 2495, 2496, 2487, 2487, 2496, 2497, 2488, 2488, 2497, 2498, 2489, 2489, 2498, 2499, 2490, 2490, 2499, 2500, 2491, 2491, 2500, 2501, 2492, 2492, 2501, 2502, 2493, 2503, 2512, 2513, 2504, 2504, 2513, 2514, 2505, 2505, 2514, 2515, 2506, 2506, 2515, 2516, 2507, 2507, 2516, 2517, 2508, 2508, 2517, 2518, 2509, 2509, 2518, 2519, 2510, 2510, 2519, 2520, 2511, 2512, 2521, 2522, 2513, 2513, 2522, 2523, 2514, 2514, 2523, 2524, 2515, 2515, 2524, 2525, 2516, 2516, 2525, 2526, 2517, 2517, 2526, 2527, 2518, 2518, 2527, 2528, 2519, 2519, 2528, 2529, 2520, 2521, 2530, 2531, 2522, 2522, 2531, 2532, 2523, 2523, 2532, 2533, 2524, 2524, 2533, 2534, 2525, 2525, 2534, 2535, 2526, 2526, 2535, 2536, 2527, 2527, 2536, 2537, 2528, 2528, 2537, 2538, 2529, 2530, 2539, 2540, 2531, 2531, 2540, 2541, 2532, 2532, 2541, 2542, 2533, 2533, 2542, 2543, 2534, 2534, 2543, 2544, 2535, 2535, 2544, 2545, 2536, 2536, 2545, 2546, 2537, 2537, 2546, 2547, 2538, 2539, 2548, 2549, 2540, 2540, 2549, 2550, 2541, 2541, 2550, 2551, 2542, 2542, 2551, 2552, 2543, 2543, 2552, 2553, 2544, 2544, 2553, 2554, 2545, 2545, 2554, 2555, 2546, 2546, 2555, 2556, 2547, 2548, 2557, 2558, 2549, 2549, 2558, 2559, 2550, 2550, 2559, 2560, 2551, 2551, 2560, 2561, 2552, 2552, 2561, 2562, 2553, 2553, 2562, 2563, 2554, 2554, 2563, 2564, 2555, 2555, 2564, 2565, 2556, 2557, 2566, 2567, 2558, 2558, 2567, 2568, 2559, 2559, 2568, 2569, 2560, 2560, 2569, 2570, 2561, 2561, 2570, 2571, 2562, 2562, 2571, 2572, 2563, 2563, 2572, 2573, 2564, 2564, 2573, 2574, 2565, 2566, 2575, 2576, 2567, 2567, 2576, 2577, 2568, 2568, 2577, 2578, 2569, 2569, 2578, 2579, 2570, 2570, 2579, 2580, 2571, 2571, 2580, 2581, 2572, 2572, 2581, 2582, 2573, 2573, 2582, 2583, 2574]
+        uniform token subdivisionScheme = "none"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-14.4439, 15.0217, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def "mtl"
+    {
+        def Material "Material__43" (
+            prepend references = @Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx@</MaterialX>
+        )
+        {
+            token outputs:mtlx:surface.connect = </root/mtl/Material__43/Materials/Iberian_Blue_Ceramic_Tiles.outputs:mtlx:surface>
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/sphere_displayColor_vertex.usda b/src/Tests/Integration/data/sphere_displayColor_vertex.usda
new file mode 100644
index 0000000..807d8da
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_displayColor_vertex.usda
@@ -0,0 +1,30 @@
+#usda 1.0
+(
+    defaultPrim = "sphere_displayColor_vertex"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "sphere_displayColor_vertex"
+{
+    def Mesh "Sphere001"
+    {
+        float3[] extent = [(-10, -10, -10), (10, 10, 10)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1, 5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4]
+        point3f[] points = [(0, 0, 10), (-4.371139e-7, 10, -4.371139e-7), (-10, -8.742278e-7, -4.371139e-7), (1.1924881e-7, -10, -4.371139e-7), (10, 0.0000017484556, -4.371139e-7), (0, 0, -10)]
+
+        color3f[] primvars:displayColor(
+            interpolation = "vertex"
+        )
+
+        color3f[] primvars:displayColor.timeSamples = {
+          0 : [(2.4646326e-8, 0, 1), (-4.9292645e-8, 1, -2.4646322e-8), (-1, 0, 0), (0, -1, -2.4646326e-8), (1, 9.85853e-8, -2.4646326e-8), (2.4646326e-8, 0, -1)],
+          1 : [(-2.4646326e-8, 0, -1), (4.9292645e-8, -1, 2.4646322e-8), (1, 0, 0), (0, 1, 2.4646326e-8), (-1, -9.85853e-8, 2.4646326e-8), (-2.4646326e-8, 0, 1)]        
+        }        
+        uniform token subdivisionScheme = "none"
+    }
+}
+
diff --git a/src/Tests/Integration/data/sphere_edit_interp.usda b/src/Tests/Integration/data/sphere_edit_interp.usda
new file mode 100644
index 0000000..3403a2b
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_edit_interp.usda
@@ -0,0 +1,32 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.4.0"
+    }
+    defaultPrim = "Sphere001"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Mesh "Sphere001" (
+    customData = {
+        dictionary "3dsmax" = {
+            int matId = 2
+        }
+    }
+)
+{
+    float3[] extent = [(-10.489979, -10.489979, -10.489979), (10.489979, 10.489979, 10.489979)]
+    int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
+    int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1, 5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4]
+    point3f[] points = [(0, 0, 10.489979), (-4.5853153e-7, 10.489979, -4.5853153e-7), (-10.489979, -9.1706306e-7, -4.5853153e-7), (1.2509174e-7, -10.489979, -4.5853153e-7), (10.489979, 0.0000018341261, -4.5853153e-7), (0, 0, -10.489979)]
+    color3f[] primvars:displayColor = [(0.88235295, 0.7764706, 0.34117648)]
+
+    float3[] primvars:normals = [(2.4646326e-8, 0, 1), (-9.858529e-8, 1, -2.4646322e-8), (-1, -4.9292645e-8, -2.4646322e-8), (4.929265e-8, -1, -2.4646326e-8), (1, 4.929265e-8, 0), (2.4646326e-8, 0, -1)] (
+        interpolation = "vertex"
+    )
+    uniform token subdivisionScheme = "none"
+    matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-2.05996, 3.79379, 0, 1) )
+    uniform token[] xformOpOrder = ["xformOp:transform"]
+}
+
diff --git a/src/Tests/Integration/data/sphere_native.usda b/src/Tests/Integration/data/sphere_native.usda
new file mode 100644
index 0000000..4f77974
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_native.usda
@@ -0,0 +1,8 @@
+#usda 1.0
+(
+    upAxis = "Z"
+	metersPerUnit = 0.001
+)
+def Sphere "sphere" {
+    double radius = 4.0
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/sphere_native_animated.usda b/src/Tests/Integration/data/sphere_native_animated.usda
new file mode 100644
index 0000000..5071eb9
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_native_animated.usda
@@ -0,0 +1,21 @@
+#usda 1.0
+(
+    upAxis = "Z"
+	metersPerUnit = 0.001
+    endTimeCode = 40
+    framesPerSecond = 30
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+)
+def Sphere "sphere" {
+		float3[] extent.timeSamples = {
+			0: [(-8, -8, -8), (8, 8, 8)],
+			20: [(-4, -4, -4), (4, 4, 4)],
+			40: [(-16, -16, -16), (16, 16, 16)],
+        }
+        double radius.timeSamples = {
+            0: 8,
+            20: 4,
+            40: 16,
+        }
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/sphere_normals_vertex.usda b/src/Tests/Integration/data/sphere_normals_vertex.usda
new file mode 100644
index 0000000..54d9173
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_normals_vertex.usda
@@ -0,0 +1,31 @@
+#usda 1.0
+(
+    defaultPrim = "sphere_normals_vertex"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "sphere_normals_vertex"
+{
+    def Mesh "Sphere001"
+    {
+        float3[] extent = [(-10, -10, -10), (10, 10, 10)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1, 5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4]
+        point3f[] points = [(0, 0, 10), (-4.371139e-7, 10, -4.371139e-7), (-10, -8.742278e-7, -4.371139e-7), (1.1924881e-7, -10, -4.371139e-7), (10, 0.0000017484556, -4.371139e-7), (0, 0, -10)]
+        color3f[] primvars:displayColor = [(0.89411765, 0.6, 0.72156864)]
+
+        float3[] primvars:normals(
+            interpolation = "vertex"
+        )
+
+        float3[] primvars:normals.timeSamples = {
+          0 : [(2.4646326e-8, 0, 1), (-4.9292645e-8, 1, -2.4646322e-8), (-1, 0, 0), (0, -1, -2.4646326e-8), (1, 9.85853e-8, -2.4646326e-8), (2.4646326e-8, 0, -1)],
+          1 : [(-2.4646326e-8, 0, -1), (4.9292645e-8, -1, 2.4646322e-8), (1, 0, 0), (0, 1, 2.4646326e-8), (-1, -9.85853e-8, 2.4646326e-8), (-2.4646326e-8, 0, 1)]        
+        }        
+        uniform token subdivisionScheme = "none"
+    }
+}
+
diff --git a/src/Tests/Integration/data/sphere_uv_vertex.usda b/src/Tests/Integration/data/sphere_uv_vertex.usda
new file mode 100644
index 0000000..5aa61a9
--- /dev/null
+++ b/src/Tests/Integration/data/sphere_uv_vertex.usda
@@ -0,0 +1,83 @@
+#usda 1.0
+(
+    defaultPrim = "sphere_uv_vertex"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+    endTimeCode = 1
+    startTimeCode = 0
+)
+
+def Xform "sphere_uv_vertex"
+{
+    def Mesh "Sphere001"
+    {
+        float3[] extent = [(-10, -10, -10), (10, 10, 10)]
+        int[] faceVertexCounts = [3, 3, 3, 3, 3, 3, 3, 3]
+        int[] faceVertexIndices = [0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 1, 5, 2, 1, 5, 3, 2, 5, 4, 3, 5, 1, 4]
+        point3f[] points = [(0, 0, 10), (-4.371139e-7, 10, -4.371139e-7), (-10, -8.742278e-7, -4.371139e-7), (1.1924881e-7, -10, -4.371139e-7), (10, 0.0000017484556, -4.371139e-7), (0, 0, -10)]
+        color3f[] primvars:displayColor = [(0.89411765, 0.6, 0.72156864)]
+
+        texCoord2f[] primvars:map1(
+            interpolation = "vertex"
+        )
+
+        texCoord2f[] primvars:map1.timeSamples = {
+          0 : [(0, 1), (0.25, 1), (0.5, 1), (0.75, 1), (0, 0.5), (0.25, 0.5)],
+          1 : [(1, 0), (0.75, 0), (0.5, 0), (0.25, 0), (1, 0.5), (0.75, 0.5)] 
+        }   
+        uniform token subdivisionScheme = "none"
+        
+        rel material:binding = </sphere_uv_vertex/Materials/Material__25>
+    }
+    
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token inputs:frame:map1 = "map1"
+            token outputs:surface.connect = </sphere_uv_vertex/Materials/Material__25/UsdPreviewSurface.outputs:surface>
+
+            def Shader "UsdPreviewSurface"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor.connect = </sphere_uv_vertex/Materials/Map__1.outputs:rgb>
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Shader "Map__1"
+        {
+            uniform token info:id = "UsdUVTexture"
+            asset inputs:file = @uv_checker.png@
+            float2 inputs:st.connect = </sphere_uv_vertex/Materials/Map__1/TextureTransform_map1.outputs:result>
+            token inputs:wrapS = "repeat"
+            token inputs:wrapT = "repeat"
+            float3 outputs:rgb
+
+            def Shader "PrimvarReader_map1"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </sphere_uv_vertex/Materials/Material__25.inputs:frame:map1>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_map1"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </sphere_uv_vertex/Materials/Map__1/PrimvarReader_map1.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/stage_get_usd_materials.usda b/src/Tests/Integration/data/stage_get_usd_materials.usda
new file mode 100644
index 0000000..056e724
--- /dev/null
+++ b/src/Tests/Integration/data/stage_get_usd_materials.usda
@@ -0,0 +1,248 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.2.22.0"
+    }
+    defaultPrim = "stage_get_usd_materials"
+    metersPerUnit = 0.0254
+    upAxis = "Z"
+)
+
+def Xform "stage_get_usd_materials"
+{
+    def Mesh "Box001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+    )
+    {
+        float3[] extent = [(-28.596703, -20.7388, 0), (28.596703, 20.7388, 36.76565)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </stage_get_usd_materials/Materials/Material__25>
+        point3f[] points = [(-28.596703, -20.7388, 0), (28.596703, -20.7388, 0), (-28.596703, 20.7388, 0), (28.596703, 20.7388, 0), (-28.596703, -20.7388, 36.76565), (28.596703, -20.7388, 36.76565), (-28.596703, 20.7388, 36.76565), (28.596703, 20.7388, 36.76565)]
+        color3f[] primvars:displayColor = [(0.5294118, 0.23137255, 0.03137255)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-9.70095, 2.99585, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent = [(-15.04679, -17.735798, 0), (15.04679, 17.735798, 24.331902)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-15.04679, -17.735798, 0), (15.04679, -17.735798, 0), (-15.04679, 17.735798, 0), (15.04679, 17.735798, 0), (-15.04679, -17.735798, 24.331902), (15.04679, -17.735798, 24.331902), (-15.04679, 17.735798, 24.331902), (15.04679, 17.735798, 24.331902)]
+        color3f[] primvars:displayColor = [(0.023529412, 0.5294118, 0.44313726)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-7.63932, -56.7943, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_Material__26" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1, 2]
+            rel material:binding = </stage_get_usd_materials/Materials/Material__26>
+        }
+
+        def GeomSubset "_2_Material__38" (
+            prepend apiSchemas = ["MaterialBindingAPI"]
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0, 5]
+            rel material:binding = </stage_get_usd_materials/Materials/Material__38>
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </stage_get_usd_materials/Materials/Material__26/Material__26.outputs:surface>
+
+            def Shader "Material__26"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.5, 0.5, 0.5)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__38"
+        {
+            token outputs:surface.connect = </stage_get_usd_materials/Materials/Material__38/Material__38.outputs:surface>
+
+            def Shader "Material__38"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (1, 0, 0)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+
+        def Material "Material__25"
+        {
+            token outputs:surface.connect = </stage_get_usd_materials/Materials/Material__25/Material__25.outputs:surface>
+
+            def Shader "Material__25"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0
+                color3f inputs:diffuseColor = (0.57254905, 1, 0.5019608)
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.52
+                float inputs:metallic = 0
+                float inputs:opacity = 1
+                float inputs:roughness = 0
+                token outputs:surface
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/stage_payload.usda b/src/Tests/Integration/data/stage_payload.usda
new file mode 100644
index 0000000..4fcd135
--- /dev/null
+++ b/src/Tests/Integration/data/stage_payload.usda
@@ -0,0 +1,27 @@
+#usda 1.0
+(
+    defaultPrim = "StagePayloadTest"
+    upAxis = "Z"
+)
+
+def "StagePayloadTest"
+{
+    def "NativeGeoms"
+    {
+        def "Cone" (
+            prepend payload = @./cone_native.usda@</cone>
+        )
+        {
+            double3 xformOp:translate = (-10, -10, -10)
+            uniform token[] xformOpOrder = ["xformOp:translate"]
+        }
+        def "Cube" (
+            prepend payload = @./cube_native.usda@</box>
+        )
+        {
+            double3 xformOp:translate = (10, 10, 10)
+            uniform token[] xformOpOrder = ["xformOp:translate"]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/stage_payload_none_legacy.max b/src/Tests/Integration/data/stage_payload_none_legacy.max
new file mode 100644
index 0000000..1c356cf
--- /dev/null
+++ b/src/Tests/Integration/data/stage_payload_none_legacy.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:848761215e343c0aa5658969f8c4cc1bd09e182d4ad436793ad972b6845a6ae3
+size 819200
diff --git a/src/Tests/Integration/data/subobject_pivot_transform.usda b/src/Tests/Integration/data/subobject_pivot_transform.usda
new file mode 100644
index 0000000..8f4184e
--- /dev/null
+++ b/src/Tests/Integration/data/subobject_pivot_transform.usda
@@ -0,0 +1,163 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.6.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 10
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-6.463935, -6.0342584, 0), (6.463935, 6.0342584, 5.187522)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-6.463935, -6.0342584, 0), (6.463935, -6.0342584, 0), (-6.463935, 6.0342584, 0), (6.463935, 6.0342584, 0), (-6.463935, -6.0342584, 5.187522), (6.463935, -6.0342584, 5.187522), (-6.463935, 6.0342584, 5.187522), (6.463935, 6.0342584, 5.187522)],
+        }
+        color3f[] primvars:displayColor = [(0.42352942, 0.03137255, 0.53333336)]
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        texCoord2f[] primvars:st (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:st:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0.443609, 1) ),
+            2: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 1.64769, 1) ),
+            3: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 3.42212, 1) ),
+            4: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 5.57679, 1) ),
+            5: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 7.92158, 1) ),
+            6: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 10.2664, 1) ),
+            7: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 12.421, 1) ),
+            8: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 14.1955, 1) ),
+            9: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 15.3996, 1) ),
+            10: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 15.8432, 1) ),
+        }
+		
+		matrix4d xformOp:transform:t1 = ((1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) )
+		
+		float3 xformOp:translate:pivot = (0, 0, 10)
+
+        uniform token[] xformOpOrder = ["xformOp:transform", "xformOp:transform:t1", "xformOp:translate:pivot", "!invert!xformOp:translate:pivot"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [1],
+            }
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [0],
+            }
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [5],
+            }
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [3],
+            }
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [2],
+            }
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices.timeSamples = {
+                0: [4],
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/subobject_point_instance_transform.usda b/src/Tests/Integration/data/subobject_point_instance_transform.usda
new file mode 100644
index 0000000..57e566d
--- /dev/null
+++ b/src/Tests/Integration/data/subobject_point_instance_transform.usda
@@ -0,0 +1,168 @@
+#usda 1.0
+(
+    startTimeCode = 0
+    endTimeCode = 1
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "ProtoRed" () {
+    def Cube "cube" () {
+        ColorFloat[] primvars:displayColor = [(1,0,0)]
+    }
+    token visibility = "invisible"
+}
+
+def Xform "ProtoGreen" () {
+    def Cone "cone" () {
+        ColorFloat[] primvars:displayColor = [(0,1,0)]
+    }
+    token visibility = "invisible"
+}
+
+// Normal instancer setup
+def PointInstancer "InstancerAllAttrAuth" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 ],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+    
+	point3f[] positions = [(10,0,0), (-10,0,0)]
+	quath[] orientations = [(1,0,0,0), (1,0,0,0)]
+	point3f[] scales = [(1,1,1), (1,1,1)]
+    
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
+
+// Instancer with no PRS attributes setup
+def PointInstancer "InstancerAttrNotAuth" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 ],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
+
+// Instancer with PRS attributes setup empty / malformed data.
+def PointInstancer "InstancerAttrAuthEmpty" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 ],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+	point3f[] positions = []
+	quath[] orientations = []
+	point3f[] scales = []
+    
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
+
+
+// Instancer with PRS attributes setup at a non-default time.
+def PointInstancer "InstancerAttrAuthAtTime" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 ],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+
+	point3f[] positions.timeSamples = {
+		0:[(10,0,0), (-10,0,0)]
+	}
+	
+	quath[] orientations.timeSamples = {
+		0:[(1,0,0,0), (1,0,0,0)]
+	}
+	
+	point3f[] scales.timeSamples = {
+		0:[(1,1,1), (1,1,1)]
+	}
+    
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
+
+def PointInstancer "SubobjCentersInstances" {
+    int[] protoIndices.timeSamples = {
+		0:[ 1, 0 ],
+		
+	}
+    rel prototypes = [ <Protos/Proto1>, <Protos/Proto2> ]
+    
+	point3f[] positions = [(10,10,10), (0,0,0)]
+	quath[] orientations = [(1,0,0,0), (1,0,0,0)]
+	point3f[] scales = [(1,1,1), (1,1,1)]
+    
+	def "Protos" {
+
+        def "Proto1" (
+            references = </ProtoRed>
+        ) {
+            token visibility = "visible"
+        }
+        def Xform "Proto2" (
+            references = </ProtoGreen>
+        ) {
+            token visibility = "visible"
+        }
+    }
+}
+
+def Sphere "SubobjCenterPrim"
+{
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (50, 50, 50, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/data/subobject_transform.usda b/src/Tests/Integration/data/subobject_transform.usda
new file mode 100644
index 0000000..e6aef51
--- /dev/null
+++ b/src/Tests/Integration/data/subobject_transform.usda
@@ -0,0 +1,421 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.6.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 1
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Xform "Box001"
+    {
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (0.353553, 0, -0.353553, 0), (0, 0.5, 0, 0), (0.353553, 0, 0.353553, 0), (3.93701, 0, 0, 1) ),
+            1: ( (3.7749e-8, 0, -0.5, 0), (0, 0.5, 0, 0), (0.5, 0, 3.7749e-8, 0), (3.93701, 0, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def Mesh "Box001_Shape"
+        {
+            float3[] extent.timeSamples = {
+                0: [(-9.088528, -9.615679, 0), (9.088528, 9.615679, 9.217024)],
+            }
+            int[] faceVertexCounts.timeSamples = {
+                0: [4, 4, 4, 4, 4, 4],
+            }
+            int[] faceVertexIndices.timeSamples = {
+                0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+            }
+            point3f[] points.timeSamples = {
+                0: [(-9.088528, -9.615679, 0), (9.088528, -9.615679, 0), (-9.088528, 9.615679, 0), (9.088528, 9.615679, 0), (-9.088528, -9.615679, 9.217024), (9.088528, -9.615679, 9.217024), (-9.088528, 9.615679, 9.217024), (9.088528, 9.615679, 9.217024)],
+            }
+            color3f[] primvars:displayColor = [(0.105882354, 0.69411767, 0.105882354)]
+            float3[] primvars:normals (
+                interpolation = "faceVarying"
+            )
+            float3[] primvars:normals.timeSamples = {
+                0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+            }
+            int[] primvars:normals:indices.timeSamples = {
+                0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+            }
+            texCoord2f[] primvars:st (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st.timeSamples = {
+                0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+            }
+            int[] primvars:st:indices.timeSamples = {
+                0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+            }
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+
+            def GeomSubset "_1_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 1
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [1],
+                }
+            }
+
+            def GeomSubset "_2_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 2
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [0],
+                }
+            }
+
+            def GeomSubset "_3_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 3
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [5],
+                }
+            }
+
+            def GeomSubset "_4_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 4
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [3],
+                }
+            }
+
+            def GeomSubset "_5_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 5
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [2],
+                }
+            }
+
+            def GeomSubset "_6_" (
+                customData = {
+                    dictionary "3dsmax" = {
+                        int matId = 6
+                    }
+                }
+            )
+            {
+                uniform token elementType = "face"
+                uniform token familyName = "materialBind"
+                int[] indices.timeSamples = {
+                    0: [4],
+                }
+            }
+        }
+
+        def Xform "Box002"
+        {
+            matrix4d xformOp:transform.timeSamples = {
+                0: ( (2.0000028284302496, 0, 0, 0), (0, 1.414214, 1.4142151247479162, 0), (0, -1.414214, 1.4142151247479162, 0), (-5.567637666771319, 0, 25.29449615757751, 1) ),
+                1: ( (1.9999999999999998, 0, -2.000000000108147e-13, 0), (1.285720000268899e-13, 1.414214, 1.4142139999999999, 0), (1.285720000268899e-13, -1.414214, 1.4142139999999999, 0), (-5.567638090309766, 0, 25.294580420345536, 1) ),
+            }
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def Mesh "Box002_Shape"
+            {
+                float3[] extent.timeSamples = {
+                    0: [(-9.088528, -9.615679, 0), (9.088528, 9.615679, 9.217024)],
+                }
+                int[] faceVertexCounts.timeSamples = {
+                    0: [4, 4, 4, 4, 4, 4],
+                }
+                int[] faceVertexIndices.timeSamples = {
+                    0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+                }
+                point3f[] points.timeSamples = {
+                    0: [(-9.088528, -9.615679, 0), (9.088528, -9.615679, 0), (-9.088528, 9.615679, 0), (9.088528, 9.615679, 0), (-9.088528, -9.615679, 9.217024), (9.088528, -9.615679, 9.217024), (-9.088528, 9.615679, 9.217024), (9.088528, 9.615679, 9.217024)],
+                }
+                color3f[] primvars:displayColor = [(0.69411767, 0.5803922, 0.105882354)]
+                float3[] primvars:normals (
+                    interpolation = "faceVarying"
+                )
+                float3[] primvars:normals.timeSamples = {
+                    0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+                }
+                int[] primvars:normals:indices.timeSamples = {
+                    0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+                }
+                texCoord2f[] primvars:st (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st.timeSamples = {
+                    0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+                }
+                int[] primvars:st:indices.timeSamples = {
+                    0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+                }
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+
+                def GeomSubset "_1_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 1
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [1],
+                    }
+                }
+
+                def GeomSubset "_2_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 2
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [0],
+                    }
+                }
+
+                def GeomSubset "_3_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 3
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [5],
+                    }
+                }
+
+                def GeomSubset "_4_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 4
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [3],
+                    }
+                }
+
+                def GeomSubset "_5_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 5
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [2],
+                    }
+                }
+
+                def GeomSubset "_6_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 6
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [4],
+                    }
+                }
+            }
+
+            def Mesh "Box003"
+            {
+                float3[] extent.timeSamples = {
+                    0: [(-9.088528, -9.615679, 0), (9.088528, 9.615679, 9.217024)],
+                }
+                int[] faceVertexCounts.timeSamples = {
+                    0: [4, 4, 4, 4, 4, 4],
+                }
+                int[] faceVertexIndices.timeSamples = {
+                    0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+                }
+                point3f[] points.timeSamples = {
+                    0: [(-9.088528, -9.615679, 0), (9.088528, -9.615679, 0), (-9.088528, 9.615679, 0), (9.088528, 9.615679, 0), (-9.088528, -9.615679, 9.217024), (9.088528, -9.615679, 9.217024), (-9.088528, 9.615679, 9.217024), (9.088528, 9.615679, 9.217024)],
+                }
+                color3f[] primvars:displayColor = [(0.03137255, 0.03137255, 0.53333336)]
+                float3[] primvars:normals (
+                    interpolation = "faceVarying"
+                )
+                float3[] primvars:normals.timeSamples = {
+                    0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+                }
+                int[] primvars:normals:indices.timeSamples = {
+                    0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+                }
+                texCoord2f[] primvars:st (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st.timeSamples = {
+                    0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+                }
+                int[] primvars:st:indices.timeSamples = {
+                    0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+                }
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+                matrix4d xformOp:transform.timeSamples = {
+                    0: ( (0.21338849707328592, 0.062499820296645345, -0.11427682029664533, 0), (-0.11427662291562662, 0.19508225513168442, -0.10669385513168445, 0), (0.062499734835039095, 0.14330562667036248, 0.19508237332963752, 0), (-0.00007071065623751456, 28.712353846518276, 2.783746153481724, 1) ),
+                    1: ( (0.21338799723589952, 0.0625000062859329, -0.11427663430735775, 0), (-0.11427699528138002, 0.1950822213806914, -0.10669388888267742, 0), (0.06250001806491283, 0.1433059602587585, 0.1950827069180335, 0), (0.0000016814139334186962, 28.712274097130887, 2.7836664040943404, 1) ),
+                }
+                uniform token[] xformOpOrder = ["xformOp:transform"]
+
+                def GeomSubset "_1_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 1
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [1],
+                    }
+                }
+
+                def GeomSubset "_2_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 2
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [0],
+                    }
+                }
+
+                def GeomSubset "_3_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 3
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [5],
+                    }
+                }
+
+                def GeomSubset "_4_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 4
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [3],
+                    }
+                }
+
+                def GeomSubset "_5_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 5
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [2],
+                    }
+                }
+
+                def GeomSubset "_6_" (
+                    customData = {
+                        dictionary "3dsmax" = {
+                            int matId = 6
+                        }
+                    }
+                )
+                {
+                    uniform token elementType = "face"
+                    uniform token familyName = "materialBind"
+                    int[] indices.timeSamples = {
+                        0: [4],
+                    }
+                }
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/subobject_transform_multiple.usda b/src/Tests/Integration/data/subobject_transform_multiple.usda
new file mode 100644
index 0000000..112c2fa
--- /dev/null
+++ b/src/Tests/Integration/data/subobject_transform_multiple.usda
@@ -0,0 +1,304 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.9.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent = [(-1.27, -1.27, 0), (1.27, 1.27, 2.54)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-1.27, -1.27, 0), (1.27, -1.27, 0), (-1.27, 1.27, 0), (1.27, 1.27, 0), (-1.27, -1.27, 2.54), (1.27, -1.27, 2.54), (-1.27, 1.27, 2.54), (1.27, 1.27, 2.54)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.6039216, 0.8980392)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (25.4, 0, 25.4, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002"
+    {
+        float3[] extent = [(-1.27, -1.27, 0), (1.27, 1.27, 2.54)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-1.27, -1.27, 0), (1.27, -1.27, 0), (-1.27, 1.27, 0), (1.27, 1.27, 0), (-1.27, -1.27, 2.54), (1.27, -1.27, 2.54), (-1.27, 1.27, 2.54), (1.27, 1.27, 2.54)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.6039216, 0.8980392)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-25.4, 0, 25.4, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box003"
+    {
+        float3[] extent = [(-1.27, -1.27, 0), (1.27, 1.27, 2.54)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-1.27, -1.27, 0), (1.27, -1.27, 0), (-1.27, 1.27, 0), (1.27, 1.27, 0), (-1.27, -1.27, 2.54), (1.27, -1.27, 2.54), (-1.27, 1.27, 2.54), (1.27, 1.27, 2.54)]
+        color3f[] primvars:displayColor = [(0.6039216, 0.6039216, 0.8980392)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (-4.37114e-8, 0, 1, 0), (0, 1, 0, 0), (-1, 0, -4.37114e-8, 0), (0, 0, 25.4, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/subobject_transform_multiple_what_xformable.usda b/src/Tests/Integration/data/subobject_transform_multiple_what_xformable.usda
new file mode 100644
index 0000000..98c34e8
--- /dev/null
+++ b/src/Tests/Integration/data/subobject_transform_multiple_what_xformable.usda
@@ -0,0 +1,133 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.6.9.0"
+    }
+    defaultPrim = "root"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Foo"
+    {
+        float3[] extent = [(-11.149771, -8.693785, 0), (11.149771, 8.693785, 13.50469)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        point3f[] points = [(-11.149771, -8.693785, 0), (11.149771, -8.693785, 0), (-11.149771, 8.693785, 0), (11.149771, 8.693785, 0), (-11.149771, -8.693785, 13.50469), (11.149771, -8.693785, 13.50469), (-11.149771, 8.693785, 13.50469), (11.149771, 8.693785, 13.50469)]
+        color3f[] primvars:displayColor = [(0.34117648, 0.88235295, 0.7764706)]
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (12.4531, -26.1707, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+
+    def Scope "Bar"
+    {       
+
+        def Mesh "Baz"
+        {
+            float3[] extent = [(-11.385809, -10.8921995, 0), (11.385809, 10.8921995, 3.969232)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-11.385809, -10.8921995, 0), (11.385809, -10.8921995, 0), (-11.385809, 10.8921995, 0), (11.385809, 10.8921995, 0), (-11.385809, -10.8921995, 3.969232), (11.385809, -10.8921995, 3.969232), (-11.385809, 10.8921995, 3.969232), (11.385809, 10.8921995, 3.969232)]
+            color3f[] primvars:displayColor = [(0.69411767, 0.10980392, 0.58431375)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+        }
+
+        def Mesh "Buzz"
+        {
+            float3[] extent = [(-10.658949, -10.561287, 0), (10.658949, 10.561287, 12.376852)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-10.658949, -10.561287, 0), (10.658949, -10.561287, 0), (-10.658949, 10.561287, 0), (10.658949, 10.561287, 0), (-10.658949, -10.561287, 12.376852), (10.658949, -10.561287, 12.376852), (-10.658949, 10.561287, 12.376852), (10.658949, 10.561287, 12.376852)]
+            color3f[] primvars:displayColor = [(0.6039216, 0.84313726, 0.8980392)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (31.1441758, 7.672099999999997, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+        }
+
+        def Xform "Qux"
+        {
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (59.198, -13.1447, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+
+            def Mesh "Quux"
+            {
+                float3[] extent = [(-8.1182785, -6.8002095, 0), (8.1182785, 6.8002095, 10.959538)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+                point3f[] points = [(-8.1182785, -6.8002095, 0), (8.1182785, -6.8002095, 0), (-8.1182785, 6.8002095, 0), (8.1182785, 6.8002095, 0), (-8.1182785, -6.8002095, 10.959538), (8.1182785, -6.8002095, 10.959538), (-8.1182785, 6.8002095, 10.959538), (8.1182785, 6.8002095, 10.959538)]
+                color3f[] primvars:displayColor = [(0.10980392, 0.34901962, 0.69411767)]
+                float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+            }
+
+            def Mesh "Corge"
+            {
+                float3[] extent = [(-10.470547, -8.692387, 0), (10.470547, 8.692387, 11.244637)]
+                int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+                int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+                point3f[] points = [(-10.470547, -8.692387, 0), (10.470547, -8.692387, 0), (-10.470547, 8.692387, 0), (10.470547, 8.692387, 0), (-10.470547, -8.692387, 11.244637), (10.470547, -8.692387, 11.244637), (-10.470547, 8.692387, 11.244637), (10.470547, 8.692387, 11.244637)]
+                color3f[] primvars:displayColor = [(0.5294118, 0.43137255, 0.03137255)]
+                float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                    interpolation = "faceVarying"
+                )
+                texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                    interpolation = "faceVarying"
+                )
+                uniform token subdivisionScheme = "none"
+                uniform token subsetFamily:materialBind:familyType = "partition"
+                matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-54.524100000000004, -21.20999, 0, 1) )
+                uniform token[] xformOpOrder = ["xformOp:transform"]
+            }
+        }
+
+        def Mesh "Grault"
+        {
+            float3[] extent = [(-7.963827, -4.2204, 0), (7.963827, 4.2204, 8.059505)]
+            int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+            int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+            point3f[] points = [(-7.963827, -4.2204, 0), (7.963827, -4.2204, 0), (-7.963827, 4.2204, 0), (7.963827, 4.2204, 0), (-7.963827, -4.2204, 8.059505), (7.963827, -4.2204, 8.059505), (-7.963827, 4.2204, 8.059505), (7.963827, 4.2204, 8.059505)]
+            color3f[] primvars:displayColor = [(0.69411767, 0.34509805, 0.105882354)]
+            float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+                interpolation = "faceVarying"
+            )
+            texCoord2f[] primvars:st = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+                interpolation = "faceVarying"
+            )
+            uniform token subdivisionScheme = "none"
+            uniform token subsetFamily:materialBind:familyType = "partition"
+            matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (71.3423, -73.47370000000001, 0, 1) )
+            uniform token[] xformOpOrder = ["xformOp:transform"]
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/unmappedpv.usda b/src/Tests/Integration/data/unmappedpv.usda
new file mode 100644
index 0000000..d248fb2
--- /dev/null
+++ b/src/Tests/Integration/data/unmappedpv.usda
@@ -0,0 +1,350 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.3.2.0"
+    }
+    defaultPrim = "unmappedpv"
+    metersPerUnit = 0.01
+    upAxis = "Z"
+)
+
+def Xform "unmappedpv"
+{
+    def Mesh "Box001" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+    )
+    {
+        float3[] extent = [(-10.676146, -5.513997, -10.119108), (10.676146, 5.513997, 0)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 1, 3, 2, 4, 6, 7, 5, 0, 4, 5, 1, 1, 5, 7, 3, 3, 7, 6, 2, 2, 6, 4, 0]
+        rel material:binding = </unmappedpv/Materials/Material__25>
+        point3f[] points = [(-10.676146, -5.513997, 0), (10.676146, -5.513997, 0), (-10.676146, 5.513997, 0), (10.676146, 5.513997, 0), (-10.676146, -5.513997, -10.119108), (10.676146, -5.513997, -10.119108), (-10.676146, 5.513997, -10.119108), (10.676146, 5.513997, -10.119108)]
+        color3f[] primvars:displayColor = [(0.89411765, 0.8392157, 0.6)]
+        texCoord2f[] primvars:foo = [(0, 4.4703484e-7), (0.9999999, 0), (1.1920929e-7, 1), (1, 0.9999995), (0, 4.4703484e-7), (0.9999999, 0), (1.1920929e-7, 1), (1, 0.9999995)] (
+            interpolation = "vertex"
+        )
+        texCoord2f[] primvars:map1 = [(1, 0), (0, 0), (0, 1), (1, 1), (0, 0), (0, 1), (1, 1), (1, 0), (0, 0), (0, 1), (1, 1), (1, 0), (0, 0), (0, 1), (1, 1), (1, 0), (0, 0), (0, 1), (1, 1), (1, 0), (0, 0), (0, 1), (1, 1), (1, 0)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (-16.0205, 17.4452, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def Mesh "Box002" (
+        prepend apiSchemas = ["MaterialBindingAPI"]
+    )
+    {
+        float3[] extent = [(-17.077805, -10.4218445, 0), (17.077805, 10.4218445, 14.443337)]
+        int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
+        int[] faceVertexIndices = [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6]
+        rel material:binding = </unmappedpv/Materials/Material__26>
+        point3f[] points = [(-17.077805, -10.4218445, 0), (17.077805, -10.4218445, 0), (-17.077805, 10.4218445, 0), (17.077805, 10.4218445, 0), (-17.077805, -10.4218445, 14.443337), (17.077805, -10.4218445, 14.443337), (-17.077805, 10.4218445, 14.443337), (17.077805, 10.4218445, 14.443337)]
+        texCoord2f[] primvars:bar = [(0.65894926, 0.23953691), (0.6589494, 0.760463), (0.34105062, 0.239537), (0.34105074, 0.7604631), (0.6015101, 0.33365995), (0.60151017, 0.66634), (0.39848983, 0.33365998), (0.39848992, 0.66634005)] (
+            interpolation = "vertex"
+        )
+        color3f[] primvars:displayColor = [(0.88235295, 0.34509805, 0.78039217)]
+        texCoord2f[] primvars:map1 = [(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)] (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals = [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)] (
+            interpolation = "faceVarying"
+        )
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform = ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (27.3474, -21.0238, 0, 1) )
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+
+        def GeomSubset "_1_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 1
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [1]
+        }
+
+        def GeomSubset "_2_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 2
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [0]
+        }
+
+        def GeomSubset "_3_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 3
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [5]
+        }
+
+        def GeomSubset "_4_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 4
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [3]
+        }
+
+        def GeomSubset "_5_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 5
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [2]
+        }
+
+        def GeomSubset "_6_" (
+            customData = {
+                dictionary "3dsmax" = {
+                    int matId = 6
+                }
+            }
+        )
+        {
+            uniform token elementType = "face"
+            uniform token familyName = "materialBind"
+            int[] indices = [4]
+        }
+    }
+
+    def "Materials"
+    {
+        def Material "Material__25"
+        {
+            token outputs:surface.connect = </unmappedpv/Materials/Material__25/Material__25.outputs:surface>
+
+            def Shader "Material__25"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </unmappedpv/Materials/Material__25/Map__2.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+
+            def NodeGraph "Map__2" (
+                prepend references = </unmappedpv/Materials/Map__2>
+            )
+            {
+            }
+        }
+
+        def NodeGraph "Map__2"
+        {
+            token inputs:frame:foo = "foo"
+            float3 outputs:rgb.connect = </unmappedpv/Materials/Map__2/Map__2.outputs:rgb>
+
+            def Shader "Map__2"
+            {
+                uniform token info:id = "UsdUVTexture"
+                asset inputs:file = @./uvgrid.jpg@
+                float2 inputs:st.connect = </unmappedpv/Materials/Map__2/TextureTransform_foo.outputs:result>
+                token inputs:wrapS = "repeat"
+                token inputs:wrapT = "repeat"
+                float3 outputs:rgb
+            }
+
+            def Shader "PrimvarReader_foo"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </unmappedpv/Materials/Map__2.inputs:frame:foo>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_foo"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </unmappedpv/Materials/Map__2/PrimvarReader_foo.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (1, 1)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+
+        def Material "Material__26"
+        {
+            token outputs:surface.connect = </unmappedpv/Materials/Material__26/Material__26.outputs:surface>
+
+            def Shader "Material__26"
+            {
+                uniform token info:id = "UsdPreviewSurface"
+                float inputs:clearcoat = 0
+                float inputs:clearcoatRoughness = 0.01
+                color3f inputs:diffuseColor.connect = </unmappedpv/Materials/Material__26/Map__1.outputs:rgb>
+                float inputs:displacement = 0
+                color3f inputs:emissiveColor = (0, 0, 0)
+                float inputs:ior = 1.5
+                float inputs:metallic = 0
+                normal3f inputs:normal = (0, 0, 1)
+                float inputs:occlusion = 1
+                float inputs:opacity = 1
+                float inputs:opacityThreshold = 0
+                float inputs:roughness = 0.5
+                color3f inputs:specularColor = (0, 0, 0)
+                int inputs:useSpecularWorkflow = 0
+                token outputs:surface
+            }
+
+            def NodeGraph "Map__1" (
+                prepend references = </unmappedpv/Materials/Map__1>
+            )
+            {
+            }
+        }
+
+        def NodeGraph "Map__1"
+        {
+            token inputs:frame:bar = "bar"
+            float3 outputs:rgb.connect = </unmappedpv/Materials/Map__1/Map__1.outputs:rgb>
+
+            def Shader "Map__1"
+            {
+                uniform token info:id = "UsdUVTexture"
+                asset inputs:file = @./uv_checker.png@
+                float2 inputs:st.connect = </unmappedpv/Materials/Map__1/TextureTransform_bar.outputs:result>
+                token inputs:wrapS = "repeat"
+                token inputs:wrapT = "repeat"
+                float3 outputs:rgb
+            }
+
+            def Shader "PrimvarReader_bar"
+            {
+                uniform token info:id = "UsdPrimvarReader_float2"
+                token inputs:varname.connect = </unmappedpv/Materials/Map__1.inputs:frame:bar>
+                float2 outputs:result
+            }
+
+            def Shader "TextureTransform_bar"
+            {
+                uniform token info:id = "UsdTransform2d"
+                float2 inputs:in.connect = </unmappedpv/Materials/Map__1/PrimvarReader_bar.outputs:result>
+                float inputs:rotation = 0
+                float2 inputs:scale = (2, 2)
+                float2 inputs:translation = (0, 0)
+                float2 outputs:result
+            }
+        }
+    }
+}
+
diff --git a/src/Tests/Integration/data/usd_anim_playback_test_sample.usda b/src/Tests/Integration/data/usd_anim_playback_test_sample.usda
new file mode 100644
index 0000000..ca19b1f
--- /dev/null
+++ b/src/Tests/Integration/data/usd_anim_playback_test_sample.usda
@@ -0,0 +1,7 @@
+#usda 1.0
+(
+    endTimeCode = 129
+    startTimeCode = 101
+    upAxis = "Z"
+    timeCodesPerSecond = 24
+)
\ No newline at end of file
diff --git a/src/Tests/Integration/data/usd_xformable_controller.usda b/src/Tests/Integration/data/usd_xformable_controller.usda
new file mode 100644
index 0000000..36a4719
--- /dev/null
+++ b/src/Tests/Integration/data/usd_xformable_controller.usda
@@ -0,0 +1,68 @@
+#usda 1.0
+(
+    customLayerData = {
+        string creator = "USD for Autodesk 3ds Max: v0.7.3.0"
+    }
+    defaultPrim = "root"
+    endTimeCode = 10
+    framesPerSecond = 30
+    metersPerUnit = 0.0254
+    startTimeCode = 0
+    timeCodesPerSecond = 30
+    upAxis = "Z"
+)
+
+def Xform "root"
+{
+    def Mesh "Box001"
+    {
+        float3[] extent.timeSamples = {
+            0: [(-25, -5, 0), (25, 5, 10)],
+        }
+        int[] faceVertexCounts.timeSamples = {
+            0: [4, 4, 4, 4, 4, 4],
+        }
+        int[] faceVertexIndices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6],
+        }
+        point3f[] points.timeSamples = {
+            0: [(-25, -5, 0), (25, -5, 0), (-25, 5, 0), (25, 5, 0), (-25, -5, 10), (25, -5, 10), (-25, 5, 10), (25, 5, 10)],
+        }
+        color3f[] primvars:displayColor = [(0.47058824, 0.43137255, 0.08627451)]
+        float3[] primvars:normals (
+            interpolation = "faceVarying"
+        )
+        float3[] primvars:normals.timeSamples = {
+            0: [(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)],
+        }
+        int[] primvars:normals:indices.timeSamples = {
+            0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23],
+        }
+        texCoord2f[] primvars:st (
+            interpolation = "faceVarying"
+        )
+        texCoord2f[] primvars:st.timeSamples = {
+            0: [(1, 0), (0, 0), (1, 1), (0, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1), (0, 0), (1, 0), (0, 1), (1, 1)],
+        }
+        int[] primvars:st:indices.timeSamples = {
+            0: [0, 2, 3, 1, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 15, 14, 16, 17, 19, 18, 20, 21, 23, 22],
+        }
+        uniform token subdivisionScheme = "none"
+        uniform token subsetFamily:materialBind:familyType = "partition"
+        matrix4d xformOp:transform.timeSamples = {
+            0: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            1: ( (1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ),
+            2: ( (0.998549, 0, -0.0538421, 0), (0, 1, 0, 0), (0.0538421, 0, 0.998549, 0), (0, -1.67552, 0, 1) ),
+            3: ( (0.980416, 0, -0.196939, 0), (0, 1, 0, 0), (0.196939, 0, 0.980416, 0), (0, -6.16592, 0, 1) ),
+            4: ( (0.918216, 0, -0.39608, 0), (0, 1, 0, 0), (0.39608, 0, 0.918216, 0), (0, -12.6669, 0, 1) ),
+            5: ( (0.793025, 0, -0.609189, 0), (0, 1, 0, 0), (0.609189, 0, 0.793025, 0), (0, -20.3743, 0, 1) ),
+            6: ( (0.609189, 0, -0.793025, 0), (0, 1, 0, 0), (0.793025, 0, 0.609189, 0), (0, -28.4839, 0, 1) ),
+            7: ( (0.39608, 0, -0.918216, 0), (0, 1, 0, 0), (0.918216, 0, 0.39608, 0), (0, -36.1913, 0, 1) ),
+            8: ( (0.196939, 0, -0.980416, 0), (0, 1, 0, 0), (0.980416, 0, 0.196939, 0), (0, -42.6923, 0, 1) ),
+            9: ( (0.0538421, 0, -0.998549, 0), (0, 1, 0, 0), (0.998549, 0, 0.0538421, 0), (0, -47.1827, 0, 1) ),
+            10: ( (-4.37114e-8, 0, -1, 0), (0, 1, 0, 0), (1, 0, -4.37114e-8, 0), (0, -48.8582, 0, 1) ),
+        }
+        uniform token[] xformOpOrder = ["xformOp:transform"]
+    }
+}
+
diff --git a/src/Tests/Integration/data/usdskel_sample.usdc b/src/Tests/Integration/data/usdskel_sample.usdc
new file mode 100644
index 0000000..d862d05
--- /dev/null
+++ b/src/Tests/Integration/data/usdskel_sample.usdc
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aee5a473b6f1cba2d8cb039be598e1a68ed95b62d89c1df0e46670112ce7304b
+size 14520648
diff --git a/src/Tests/Integration/data/uv_checker.png b/src/Tests/Integration/data/uv_checker.png
new file mode 100644
index 0000000..83569d7
--- /dev/null
+++ b/src/Tests/Integration/data/uv_checker.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e1cc1c97713df2306a81bddb8ae8847ae97ac76f14dada7ca02c02e15ff14d68
+size 623172
diff --git a/src/Tests/Integration/data/uvgrid.jpg b/src/Tests/Integration/data/uvgrid.jpg
new file mode 100644
index 0000000..3b525ef
Binary files /dev/null and b/src/Tests/Integration/data/uvgrid.jpg differ
diff --git a/src/Tests/Integration/dummy.usda b/src/Tests/Integration/dummy.usda
new file mode 100644
index 0000000..90a0ecf
--- /dev/null
+++ b/src/Tests/Integration/dummy.usda
@@ -0,0 +1,9 @@
+#usda 1.0
+
+def "hello"
+{
+    def Sphere "world"
+    {
+    }
+}
+
diff --git a/src/Tests/Integration/export_animation_test.ms b/src/Tests/Integration/export_animation_test.ms
new file mode 100644
index 0000000..ac03d94
--- /dev/null
+++ b/src/Tests/Integration/export_animation_test.ms
@@ -0,0 +1,925 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pySdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_ANIMATION_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_animation_test
+(    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function test_animation_metadata_export = (
+        local cube = Box name:"cube"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        frameRates = #(1, 10, 15, 30)
+        startFrames = #(-5.5, 0.0, 1.5, 5.0)
+        endFrames = #(-1.0, 10, 3.0, 15.0)
+        exportOptions.TimeMode = #frameRange
+
+        for i in 1 to 4 do (
+            frameRate = frameRates[i]
+            local exportPath = output_prefix + "animation_metadata_" + i as string + ".usda"
+            exportOptions.StartFrame = startFrames[i]
+            exportOptions.EndFrame = endFrames[i]
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+            local stage = pyUsd.Stage.Open(exportPath)
+        
+            assert_equal startFrames[i] (stage.GetStartTimeCode()) message:"Unexpected start timeCode set in the USD stage."
+            assert_equal endFrames[i] (stage.GetEndTimeCode()) message:"Unexpected end timeCode set in the USD stage."
+            
+            assert_equal frameRate (stage.GetTimeCodesPerSecond()) message:"Unexpected \"timeCodes per second\" set in the USD stage."
+            assert_equal frameRate (stage.GetFramesPerSecond()) message:"Unexpected \"frames per second\" set in the USD stage."
+        )
+    ),
+    
+    function test_simple_object_validity_interval = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        convertToPoly cube
+        -- Select top face.
+        polyop.setFaceSelection cube  #{2}
+    
+        with animate on 
+        (
+            -- Animate the geometry : moving the top face.
+            at time 10 move cube.selectedFaces [0,0,10]
+        )
+        
+        -- We have 3 meaningful intervals : 
+        -- Object is valid in [-infinity, 0]
+        -- Object changes every frame in [0,10]
+        -- Object is valid [ 10, infinity]
+        
+        -- Export from -5 to 15.
+        local exportPath = output_prefix + "validity_interval.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -5
+        exportOptions.EndFrame = 15
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        usdCube = stage.GetPrimAtPath("/cube")
+        
+        local xformable = pyUsdGeom.Xformable(usdCube)
+        local mesh = pyUsdGeom.Mesh(usdCube)
+        local points = usdCube.GetAttribute("points")    
+        
+        for timeCode = exportOptions.StartFrame to exportOptions.EndFrame do (
+            -- Test that the geometry was animated correctly. 
+            local vertices = (points).Get(timeCode)
+            for i = 5 to 8 do (
+                local posZ = at time timeCode in coordsys local cube.max[3]
+                assert_equal posZ vertices[i][3] message:("The cube's top face position is wrong t = " + timeCode as string)
+            )
+        )
+        
+        -- From the validity intervals, we should expect 11 authored values. 
+        -- Indeed, the mesh doesnt change in [-infinity, 0] nor [10, infinity]
+        -- This means that with 1 sample per frame, we will have timeCodes 0,1,2,3,4,5,6,7,8,9,10 authored.
+        local timeSamples = points.GetTimeSamples()
+        assert_equal 11 timeSamples.Count message:"Unexpected number of timeSamples authored."
+        local expectedSamples = #(0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0,9.0,10.0)
+        for i in 1 to 11 do (
+            assert_equal expectedSamples[i] timeSamples[i] message:("Unexpected time sample exported : " + timeSamples[i] as string)
+        )
+    ),
+    
+    function get_mesh_attr_samples stage attrName primPath = (
+        prim = stage.GetPrimAtPath(primPath)
+        local attr = prim.GetAttribute(attrName)
+        return attr.GetTimeSamples()
+    ),
+    
+    function validate_time_samples expectedSamples actualSamples = (
+        assert_equal expectedSamples.Count actualSamples.Count
+        for i in 1 to expectedSamples.Count do (
+            assert_equal expectedSamples[i] actualSamples[i]
+        )        
+    ),
+    
+    function test_multiple_validity_intervals = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        convertToPoly cube
+        -- Select top face.
+        polyop.setFaceSelection cube  #{2}
+    
+        noiseMod = Noisemodifier ()
+        addModifier cube noiseMod
+        with animate on 
+        (
+            -- Animate the geometry using noise in [0,10] and [20,30].
+            at time 10 noiseMod.strength = [0,0,100.0]
+            at time 20 noiseMod.strength = [0,0,100.0]
+            at time 30 noiseMod.strength = [0,0,1000.0]
+        )
+        
+        -- We got 5 meaningful intervals : 
+        -- Object doesn't change in [-infinity, 0]
+        -- Object changes every frame in [0,10]
+        -- Object doesn't change in [10, 20]
+        -- Object changes every frame in [20, 30]
+        -- Object doesn't change in [30, infinity]
+        
+        -- Export from -5 to 35. The entire animation, going over the range on both ends.
+        local exportPath = output_prefix + "validity_multiple_intervals.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -5
+        exportOptions.EndFrame = 35
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local timeSamples = get_mesh_attr_samples stage "points" "/cube" 
+        -- From these validity intervals, we should expect 22 authored values, at 1 sample per frame.
+        local expectedSamples = #(0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0,9.0,10.0,20.0,21.0,22.0,23.0,24.0,25.0,26.0,27.0,28.0,29.0,30.0)
+        validate_time_samples expectedSamples timeSamples
+        
+        
+        -- Test other "limit" cases where we restrict the animation export within different interval types.        
+        
+        
+        -- Export from 10 to 20, within a single interval.
+        local exportPath = output_prefix + "test_exported_frames_from_intervals_1.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 10
+        exportOptions.EndFrame = 20
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local timeSamples = get_mesh_attr_samples stage "points" "/cube"
+        --In this range, nothing changes, we should only require one time sample.
+        local expectedSamples = #(10.0)
+        validate_time_samples expectedSamples timeSamples
+        
+        -- Export from 28 to 32 - from data changing every frame, to the infinite interval after 30.
+        local exportPath = output_prefix + "test_exported_frames_from_intervals_2.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 28
+        exportOptions.EndFrame = 32
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local timeSamples = get_mesh_attr_samples stage "points" "/cube"
+        -- Should only require 3 frames, up to 30.
+        local expectedSamples = #(28.0, 29.0, 30.0)
+        validate_time_samples expectedSamples timeSamples        
+    
+        -- Export from 25 to 28 - from data changing every frame.
+        local exportPath = output_prefix + "test_exported_frames_from_intervals_3.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 25
+        exportOptions.EndFrame = 28
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local timeSamples = get_mesh_attr_samples stage "points" "/cube"
+        -- Should require all frames between the start/end.
+        local expectedSamples = #(25.0, 26.0, 27.0, 28.0)
+        validate_time_samples expectedSamples timeSamples                
+        
+        -- Same test, but with start/end and sample rate that do not match the interval boundaries exactly.
+        local exportPath = output_prefix + "test_exported_frames_from_intervals_4.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 22.25
+        exportOptions.EndFrame = 28.75
+        exportOptions.SamplesPerFrame = 0.75
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local timeSamples = get_mesh_attr_samples stage "points" "/cube"
+        -- Should have the start/end times as samples. And matching the proper sample rate in between.
+        local expectedSamples = #(22.25, 23.58125, 24.9125, 26.24375, 27.575, 28.75)
+        validate_time_samples expectedSamples timeSamples        
+    ),
+       
+    function test_animate_all_geom_channels = (
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local aSphere = Sphere name:"sphere"
+        
+        uvMap = UVWmap()
+        addModifier aSphere uvMap
+        
+        with animate on 
+        (
+            -- Animate the entire topology.
+            at time 5 aSphere.segments = 8
+            at time 10.5 aSphere.segments  = 8 
+            at time 15 aSphere.segments  = 4
+        )
+        
+        local exportPath = output_prefix + "test_animate_all_geom_channels.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -3
+        exportOptions.EndFrame = 35
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local primPath = "/sphere"
+        
+        -- Expected samples where a geometry channel's validity never stays valid for longer than 
+        -- the object's validity interval.
+        local fullSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        
+        -- Extents, all animated frames have samples.
+        local extentsTimeSamples = get_mesh_attr_samples stage "extent" primPath
+        validate_time_samples extentsTimeSamples fullSamples        
+        
+        -- The topology, all animated frames have samples.
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath
+        validate_time_samples faceVertexIndicesSamples fullSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples faceVertexCountsSamples fullSamples
+        
+        -- Points, all animated frames have samples.
+        local pointTimeSamples = get_mesh_attr_samples stage "points" primPath
+        validate_time_samples pointTimeSamples fullSamples
+        
+        -- Normals, all animated frames have samples.
+        local normalsTimeSamples = get_mesh_attr_samples stage "primvars:normals" primPath
+        validate_time_samples normalsTimeSamples fullSamples
+        
+        -- UVs, all animated frames have samples.
+        local uvSamples = get_mesh_attr_samples stage "primvars:st" primPath
+        validate_time_samples uvSamples fullSamples
+    ),
+    
+    function test_animated_topology_only = (
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local aSphere = Sphere name:"sphere"
+        
+        -- UVWMap just so we have some UVs to export.
+        uvMap = UVWmap()
+        addModifier aSphere uvMap        
+        
+        -- Material modifier, when animating the materialId, only invalidates the topology.
+        matMod = MaterialModifier()
+        addModifier aSphere matMod
+        
+        with animate on 
+        (
+            at time 5 matMod.materialId = 10
+            at time 10.5 matMod.materialId = 10 
+            at time 15 matMod.materialId = 20
+        )
+        
+        local exportPath = output_prefix + "test_animated_topology_only.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -3
+        exportOptions.EndFrame = 35
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local primPath = "/sphere"
+        
+        -- Expected samples where a geometry channel's validity never stays valid for longer than 
+        -- the object's validity interval.
+        local fullSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        
+        -- Extents, all animated frames have samples.
+        local extentsTimeSamples = get_mesh_attr_samples stage "extent" primPath
+        validate_time_samples extentsTimeSamples fullSamples
+        
+        -- The topology, all animated frames have samples.
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath
+        validate_time_samples faceVertexIndicesSamples fullSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples faceVertexCountsSamples fullSamples
+        
+        -- Points : Do not depend on topology, non-animated
+        local pointTimeSamples = get_mesh_attr_samples stage "points" primPath
+        validate_time_samples pointTimeSamples #(0)
+        
+        -- Normals : can depend on the topology channel, animated.
+        local normalsTimeSamples = get_mesh_attr_samples stage "primvars:normals" primPath
+        local expectedNormalsSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        validate_time_samples normalsTimeSamples fullSamples
+        
+        -- UVs : can depend on topology, animated.
+        local uvSamples = get_mesh_attr_samples stage "primvars:st" primPath
+        validate_time_samples uvSamples fullSamples
+    ),
+    
+    function test_animated_verts_only = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        convertToPoly cube
+        polyop.defaultMapFaces cube 1
+        
+        bendModifier = BendMod ()
+        addModifier cube bendModifier
+        with animate on 
+        (
+            -- Animate the verts/normals
+            at time 5 bendModifier.angle = 45
+            at time 10.5 bendModifier.angle = 45 -- Purposefully animated at a time between two "normal" sampling steps.
+            at time 15 bendModifier.angle = 90
+        )
+        
+
+        local exportPath = output_prefix + "test_animated_verts_only.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -5
+        exportOptions.EndFrame = 35
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local primPath = "/cube"
+        
+        -- Expected samples where a geometry channel's validity never stays valid for longer than 
+        -- the object's validity interval.
+        local fullSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        
+        -- Extents, all animated frames have samples.
+        local extentsTimeSamples = get_mesh_attr_samples stage "extent" primPath
+        validate_time_samples extentsTimeSamples fullSamples        
+        
+        -- The topology doesnt change. 
+        -- Topology attributes : faceVertexCounts & faceVertexIndices 
+        -- Only 0.0 is exported, not animated in 3dsMax.
+        local expectedTopoSamples= #(0.0)
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath
+        validate_time_samples faceVertexIndicesSamples #(0.0)
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples expectedTopoSamples #(0.0)
+        
+        -- Points, all animated frames have samples.
+        local pointTimeSamples = get_mesh_attr_samples stage "points" primPath
+        validate_time_samples pointTimeSamples fullSamples
+        
+        -- Normals, all animated frames have samples.
+        local normalsTimeSamples = get_mesh_attr_samples stage "primvars:normals" primPath
+        validate_time_samples normalsTimeSamples fullSamples
+        
+        -- UVs do not change.
+        local uvSamples = get_mesh_attr_samples stage "primvars:st" primPath
+        validate_time_samples uvSamples #(0.0)
+    ),    
+    
+    -- Generally speaking we use geom channel validity intervals when exporting.
+    -- However, if the export process makes changes to the geometry for export (concave/curved/invalid geom), 
+    -- we can no longer rely on them. From that point on, within that interval, use
+    -- the object validity interval.
+    function test_geom_validity_intervals_ignored_on_split_geometry = (
+    
+        -- Create the following scenario to test this case.
+        -- A cube with a twist modifier. Export it with "PreserveEdgeOrientation" - this way, when twisted
+        -- faces are split into triangles for the purpose of export and we can't rely on validity intervals.        
+        
+        local cube = Box name:"cube"
+        twistModifier = Twist()
+        addModifier cube twistModifier
+        addModifier cube (Turn_to_Poly())
+        
+        with animate on 
+        (
+            at time 0 twistModifier.angle = 0 -- Twisted from 0 to 5
+            at time 3 twistModifier.angle = 45
+            at time 5 twistModifier.angle = 0 -- No twist from 5 to 10
+            at time 10 twistModifier.angle = 0 -- Twist again from 10 to 15
+            at time 15 twistModifier.angle = 45
+        )
+        
+        local exportPath = output_prefix + "test_geom_validity_intervals_ignored_on_split_geometry.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.TimeMode = #frameRange
+        exportOptions.FileFormat = #ascii
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = 20
+        exportOptions.RootPrimPath = "/"
+        exportOptions.PreserveEdgeOrientation = true
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()        
+        local primPath = "/cube"
+        
+        -- We therefor expect the following time samples : 
+        -- 0-5 -> Topo doesnt change on the max side, but we change it for export -> 5 samples.
+        -- 5-10 -> Topo doesnt change on the max side, exported as is -> 2 samples (start/end of interval)
+        -- 10-15 -> Topo doesnt change on the max side, but we change it for export -> 5 samples.
+        
+        local expected = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.0, 11.0, 12.0, 13.0, 14.0, 15.0)
+        
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath        
+        validate_time_samples expected faceVertexIndicesSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples expected faceVertexCountsSamples
+    ),
+    
+    -- Similar to test_geom_validity_intervals_ignored_on_split_geometry.
+    -- Here, we make sure that cleaned invalid geometry also causes object level validity 
+    -- intervals to be used.
+    function test_geom_validity_intervals_ignored_on_cleaned_geometry = (
+                
+        local quad = plane name:"quad" width:10 length:10 widthsegs:1 lengthsegs:1
+        convertToMesh quad
+        
+        -- Setup an invalid face (all indices the same)
+        setFace quad 1 1 1 1
+        
+        -- Animate a vert over 5 fames (object validity interval will be 'instant' over those frames)
+        with animate on 
+        (
+            at time 5 meshop.moveVert quad #{1} [0,0,10]
+        )
+                    
+        local exportPath = output_prefix + "test_geom_validity_intervals_ignored_on_cleaned_geometry.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.TimeMode = #frameRange
+        exportOptions.FileFormat = #ascii
+        exportOptions.StartFrame = -5 --purposefully start/end before/after the object anim range.
+        exportOptions.EndFrame = 10 
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()        
+        local primPath = "/quad"
+        
+        -- Mesh is cleaned on the first frame, validity interval of the object is used instead of the topo
+        -- interval of the mesh.
+        local expected = #(0.0, 1.0, 2.0, 3.0, 4.0, 5)
+        
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath        
+        validate_time_samples expected faceVertexIndicesSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples expected faceVertexCountsSamples
+    ),
+    
+    -- If we are converting to poly at export time, we can only use instant validity intervals.
+    -- Indeed, the geom channels intervals can't be used, as the converted topology can vary frame to frame
+    -- independently from the source topology. Prior to conversion to poly, for the purpose of export, we
+    -- show edges between triangles that are not coplanar, this is to avoid bad looking results with curved
+    -- faces. The result of that operation can change as the mesh is animated - making max's intervals meaningless.
+    -- This test make sure we dont rely object geom channel intervals in those cases.
+    function test_geom_validity_intervals_convert_tri_to_poly = (
+        local cube = box name:"cube" width:10 length:10 widthsegs:1 lengthsegs:1
+        convertToMesh cube
+        with animate on 
+        (
+            at time 5 meshop.moveVert cube #{1} [0,0,10]
+        )
+        
+        local exportPath = output_prefix + "test_geom_validity_intervals_convert_tri_to_poly.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.TimeMode = #frameRange
+        exportOptions.FileFormat = #ascii
+        exportOptions.StartFrame = -5 --purposefully start/end before/after the object anim range.
+        exportOptions.EndFrame = 10 
+        exportOptions.RootPrimPath = "/"
+        exportOptions.MeshFormat = #polyMesh
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        local primPath = "/cube"
+        
+        -- Conversion to poly -> ignore geom channel intervals, instead use the object's intervals : 
+        -- expect samples 0-5.
+        local expected = #(0.0, 1.0, 2.0, 3.0, 4.0, 5)
+        
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath        
+        validate_time_samples expected faceVertexIndicesSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples expected faceVertexCountsSamples
+    ),    
+    
+    function test_animated_uvs_only = (
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local cube = Box name:"cube"
+        
+        uvMap = Uvwmap()
+        addModifier cube uvMap
+        
+        with animate on 
+        (
+            -- Animate the entire topology.
+            at time 5 uvMap.Utile = 2.0
+            at time 10.5 uvMap.Utile = 2.0 
+            at time 15 uvMap.Utile = 4.0
+        )
+        
+        local exportPath = output_prefix + "test_animated_uvs_only.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -3
+        exportOptions.EndFrame = 35
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        local primPath = "/cube"
+        
+        -- Expected samples where a geometry channel's validity never stays valid for longer than 
+        -- the object's validity interval.
+        local fullSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        
+        -- Extents, non-animated.
+        local extentsTimeSamples = get_mesh_attr_samples stage "extent" primPath
+        validate_time_samples extentsTimeSamples #(0.0)        
+        
+        -- Topology : non-animated.
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath
+        validate_time_samples faceVertexIndicesSamples #(0.0)
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples faceVertexCountsSamples #(0.0)
+        
+        -- Points : non-animated.
+        local pointTimeSamples = get_mesh_attr_samples stage "points" primPath
+        validate_time_samples pointTimeSamples #(0.0)
+        
+        -- Normals : non-animated.
+        local normalsTimeSamples = get_mesh_attr_samples stage "primvars:normals" primPath
+        local expectedNormalsSamples = #(0.0, 1.0, 2.0, 3.0, 4.0, 5.0,10.5, 11.5, 12.5, 13.5, 14.5, 15.0)
+        validate_time_samples normalsTimeSamples #(0.0)
+        
+        -- UVs : animated.
+        local uvSamples = get_mesh_attr_samples stage "primvars:st" primPath
+        validate_time_samples uvSamples fullSamples
+    ),    
+    
+    function test_animated_transforms_intervals = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+               
+        convertToPoly cube
+        -- Select top face.
+        polyop.setFaceSelection cube  #{2}
+    
+        with animate on 
+        (
+            -- Animate the geometry : moving the top face.
+            at time 5.5 move cube.selectedFaces [0,0,10]                
+            -- Move the cube 10 units over 10 frames.
+            at time 10 move cube [0,0,10]
+        )
+        
+        local exportPath = output_prefix + "test_animated_transforms_intervals.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -5
+        exportOptions.EndFrame = 15
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local usdCube = stage.GetPrimAtPath("/cube")
+        local xFormPrim = pyUsdGeom.Xform(usdCube)
+        local xformOps = xFormPrim.GetOrderedXformOps()
+        
+        local timeSamples = (xformOps[1]).GetTimeSamples()
+        local expectedSamples = #(-5.0, -4.0, -3.0, -2.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0)
+        validate_time_samples expectedSamples timeSamples
+    ),
+        
+    -- Make sure that in animation, identity transforms are exported, while this is superfluous for 
+    -- single frames, in animation, we need those samples to get the right interpolations if the 
+    -- transform changes over time.
+    function test_animated_transforms_are_exported_even_if_identity = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        with animate on 
+        (
+            -- Move the cube 10 units over 10 frames.
+            at time 10 move cube [0,0,10]
+        )
+        
+        local exportPath = output_prefix + "test_animated_transforms_identity.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = 5
+        exportOptions.SamplesPerFrame = 1.0
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local usdCube = stage.GetPrimAtPath("/cube")
+        local xFormPrim = pyUsdGeom.Xform(usdCube)
+        local xformOps = xFormPrim.GetOrderedXformOps()
+        
+        assert_equal 0.0 ((xformOps[1]).GetTimeSamples())[1] message:"No time sample was exported at time 0.0."
+    ),
+    
+    function test_interpolation_scheme_inference_disabled_in_animation = (
+        local planeNode = Plane name:"plane"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        convertToPoly planeNode        
+        with animate on 
+        (
+            -- Move the plane 10 units over 4 frames.
+            at time 4 polyop.moveVert planeNode 1 [0,0,10]
+        )
+        
+        -- When exporting a single frame, the primvar interpolation scheme is inferred at export time.
+        local exportPath = output_prefix + "test_animated_primvar_interpolation_inference_enabled.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local usdCube = stage.GetPrimAtPath("/plane")
+        local cubeMesh = pyUsdGeom.Mesh(usdCube)
+        local primvarApi = pyUsdGeom.PrimvarsAPI(cubeMesh)
+        assert_true (primvarApi.HasPrimvar("st"))            
+        local map1 = primvarApi.GetPrimvar("st")
+        assert_equal "vertex" (map1.GetInterpolation()) message:"The interpolation scheme should have been inferred to vertex."
+        assert_true (primvarApi.HasPrimvar("normals"))            
+        local normals = primvarApi.GetPrimvar("normals") 
+        assert_equal "constant" (normals.GetInterpolation()) message:"The interpolation scheme should have been inferred to constant."
+        
+        -- When exporting an animation, the primvar interpolation is not inferred, as the result could 
+        -- vary over the course of the animation - the interpolation scheme is not animatable. 
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = 4
+        local exportPath = output_prefix + "test_animated_primvar_interpolation_inference_disabled.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local usdCube = stage.GetPrimAtPath("/plane")
+        local cubeMesh = pyUsdGeom.Mesh(usdCube)
+        -- When exporting animations, the exporter always uses faceVarying interpolation, which is essentially
+        -- how the data is mapped in Max.
+        local primvarApi = pyUsdGeom.PrimvarsAPI(cubeMesh)
+        assert_true (primvarApi.HasPrimvar("st"))            
+        local map1 = primvarApi.GetPrimvar("st")
+        assert_equal "faceVarying" (map1.GetInterpolation()) message:"The interpolation scheme should have been set to faceVarying."
+        assert_true (primvarApi.HasPrimvar("normals"))            
+        local normals = primvarApi.GetPrimvar("normals")
+        assert_equal "faceVarying" (normals.GetInterpolation()) message:"The interpolation scheme should have been set to faceVarying."
+    ),
+    
+    function test_animated_hierarchy = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local parentBox = Box name:"parent"
+        local childBox = BOx name:"child"
+        
+        childBox.parent = parentBox
+        
+        with animate on (
+            -- Animate the parent box  from frame 5 to 10, move it 10 units upwards.             
+            at time 0 parentBox.pos.Z = 0.0
+            at time 5 parentBox.pos.Z = 0.0
+            at time 10 parentBox.pos.Z = 10.0
+            -- Animate the child box over 10 frames, move it 10 units on Y.
+            at time 10 childBox.pos.Y = 10.0            
+        )  
+        
+        local exportPath = output_prefix + "test_animated_hierarchy.usda"
+        
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = 10
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        parentPrim = stage.GetPrimAtPath("/parent")
+        childPrim = stage.GetPrimAtPath("/parent/child")
+        
+        -- Test transform.
+        local parentXformable = pyUsdGeom.Xformable(parentPrim)
+        local childXformable = pyUsdGeom.Xformable(childPrim)
+        
+        for timeCode = exportOptions.StartFrame to exportOptions.EndFrame do (
+            local parentTransform = at time timeCode parentBox.transform
+            local childTransform = at time timeCode childBox.transform
+            assert_true (compareUsdAndMaxTransforms (parentXformable.ComputeLocalToWorldTransform(timeCode)) parentTransform) message:("The parent cube's transform is wrong at t = " + timeCode as string)
+            assert_true (compareUsdAndMaxTransforms (childXformable.ComputeLocalToWorldTransform(timeCode)) childTransform) message:("The child cube's transform is wrong at t = " + timeCode as string)
+        )
+    ),
+    
+    -- animated mesh + bake object offset = off + object offset != identity
+    -- We had a crash in this scenario, because of object offset XformOp was added on every frame, 
+    -- it should only be added once.
+    function test_object_offset_bake_off_animated = (
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.BakeObjectOffsetTransform = false
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        -- Add an object offset.
+        cube.objectOffsetPos = [0,0,10]
+                
+        convertToPoly cube
+        -- Select top face.
+        polyop.setFaceSelection cube  #{2}
+    
+        -- Animate the geometry : moving the top face.
+        -- This is just to make sure that we will indeed export the mesh at different timecodes, 
+        -- i.e. that we don't have a single validity interval over the animation.
+        with animate on 
+        (
+            at time 10 move cube.selectedFaces [0,0,10]
+        )        
+        
+        local exportPath = output_prefix + "object_offset_bake_off_animated.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.startFrame = 0
+        exportOptions.endFrame = 10
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        usdCube = stage.GetPrimAtPath("/cube/cube_Shape")
+        
+        local xformable = pyUsdGeom.Xformable(usdCube)
+        local samples = xformable.GetTimeSamples()
+        assert_equal 0 samples.Count message:"Object offset should not be animated."
+
+        -- Make sure the transform op for the offset is only added once. I.e. at all time, the total transform for 
+        -- this prim should be the object offset (the node is at the identity).
+        local scaleOffset = scaleMatrix cube.objectOffsetScale
+        local rotationOffset = cube.objectOffsetRot as matrix3
+        local translationOffset = transMatrix cube.objectOffsetPos
+        local offsetTransform = scaleOffset * rotationOffset * translationOffset
+        for i = exportOptions.startFrame to exportOptions.endFrame do (
+            assert_true (compareUsdAndMaxTransforms (xformable.ComputeLocalToWorldTransform(i)) offsetTransform) message:("Incorrect prim transform at timeCode = " + i as string)
+        )
+    ),
+    
+    function test_material_id_timesamples_match_topo = (
+        
+        local doubleQuad = plane name:"doubleQuad" width:10 length:10 widthsegs:1 lengthsegs:2
+        
+        convertToPoly doubleQuad
+        -- Set both quads to different material ids.
+        polyOp.setFaceMatId doubleQuad #{1} 1
+        polyOp.setFaceMatId doubleQuad #{2} 2
+        
+        -- Animate one of the quads to make it concave at some point during the animation.
+        with animate on 
+        (
+            at time 5 polyop.moveVert doubleQuad #{1} [8, 4, 0]
+        )   
+        
+        local exportPath = output_prefix + "test_material_id_timesamples_match_topo.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.TimeMode = #frameRange
+        exportOptions.FileFormat = #ascii
+        exportOptions.StartFrame = -5 --purposefully start/end before/after the object anim range.
+        exportOptions.EndFrame = 10 
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()        
+        local primPath = "/doubleQuad"
+        
+        -- Mesh is cleaned on the first frame, validity interval of the object is used instead of the topo
+        -- interval of the mesh.
+        local expected = #(0.0, 3.0, 4.0, 5.0)
+        
+        local faceVertexIndicesSamples = get_mesh_attr_samples stage "faceVertexIndices" primPath        
+        validate_time_samples expected faceVertexIndicesSamples
+        local faceVertexCountsSamples = get_mesh_attr_samples stage "faceVertexCounts" primPath
+        validate_time_samples expected faceVertexCountsSamples
+        
+        -- Validate subsets indice timesamples.
+        local subset1 = "/doubleQuad/_1_"
+        
+        local attrName = "indices"
+        
+        local subset1IndicesSamples = get_mesh_attr_samples stage attrName subset1        
+        validate_time_samples expected subset1IndicesSamples
+        
+        subset1prim = stage.GetPrimAtPath(subset1)
+        local attr = subset1prim.GetAttribute(attrName)
+        assert_equal ((attr.Get(subset1IndicesSamples[1])) as string) ((pyVt.IntArray(#(0))) as string)
+        assert_equal ((attr.Get(subset1IndicesSamples[2])) as string) ((pyVt.IntArray(#(0, 2))) as string)
+        assert_equal ((attr.Get(subset1IndicesSamples[3])) as string) ((pyVt.IntArray(#(0, 2))) as string)
+        assert_equal ((attr.Get(subset1IndicesSamples[4])) as string) ((pyVt.IntArray(#(0, 2))) as string)
+        
+        local subset2 = "/doubleQuad/_2_"
+        local subset2IndicesSamples = get_mesh_attr_samples stage attrName subset2
+        validate_time_samples expected subset2IndicesSamples
+        subset2prim = stage.GetPrimAtPath(subset2)
+        local attr = subset2prim.GetAttribute(attrName)
+        assert_equal ((attr.Get(subset2IndicesSamples[1])) as string) ((pyVt.IntArray(#(1))) as string)
+        assert_equal ((attr.Get(subset2IndicesSamples[2])) as string) ((pyVt.IntArray(#(1))) as string)
+        assert_equal ((attr.Get(subset2IndicesSamples[3])) as string) ((pyVt.IntArray(#(1))) as string)
+        assert_equal ((attr.Get(subset2IndicesSamples[4])) as string) ((pyVt.IntArray(#(1))) as string)            
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_animation_metadata_export,
+        test_simple_object_validity_interval,
+        test_multiple_validity_intervals,
+        test_animate_all_geom_channels,
+        test_animated_topology_only,
+        test_animated_uvs_only,
+        test_animated_verts_only,
+        test_animated_transforms_intervals,
+        test_animated_transforms_are_exported_even_if_identity,
+        test_interpolation_scheme_inference_disabled_in_animation,
+        test_animated_hierarchy,
+        test_object_offset_bake_off_animated,
+        test_geom_validity_intervals_ignored_on_split_geometry,
+        test_geom_validity_intervals_ignored_on_cleaned_geometry,
+        test_geom_validity_intervals_convert_tri_to_poly,
+        test_material_id_timesamples_match_topo
+    )
+)
+
+runUsdTestFixture export_animation_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_bone_guides_tests.ms b/src/Tests/Integration/export_bone_guides_tests.ms
new file mode 100644
index 0000000..e67b7ee
--- /dev/null
+++ b/src/Tests/Integration/export_bone_guides_tests.ms
@@ -0,0 +1,106 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_BONE_GUIDES_TEST_"
+deleteTestFiles(output_prefix + "*.*") 
+
+struct export_bones_as_guides_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public
+    function setup = (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+    ),
+    
+    function test_export_bone_as_guides = (
+        -- Create a hierarchy including some bones...
+        --   bone1
+        --    - box1 
+        --     - bone2 
+        bone1 = BoneSys.createBone [0,0,0] [0,0,1] [0,0,1]
+        bone1.Name = "bone1"
+        box1 = Box name:"box1"
+        box1.parent = bone1
+        bone2 = BoneSys.createBone [0,0,1] [0,0,2] [0,0,1]
+        bone2.Name = "bone2"
+        bone2.parent = box1
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Skin = false
+                
+        exportPath = output_prefix + "export_bone_as_guides.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        -- Bones should be set as purpose=guide in USD.
+        -- Because purposes in USD are inherited, we need to split the bone nodes
+        -- into an Xform and UsdGeomMesh, the UsdGeomMesh is the prim which will have the guide purpose.
+        -- Any child of the node will be under the Xform, and so the purpose will not be inherited.
+        
+        -- bone1, should find an xform prim and a shape, the shape should be set as a guide.
+        local bone1prim = stage.GetPrimAtPath("/bone1")
+        local bone1shapePrim = stage.GetPrimAtPath("/bone1/bone1_Shape")
+        assert_true (pyUsd.Prim.IsValid(bone1prim)) message:"bone1 was not exported to the expected prim path."
+        assert_true (bone1prim.IsA(pyUsdGeom.Xform)) message:"bone1 should have been exported to a Xform prim."
+        assert_true (pyUsd.Prim.IsValid(bone1shapePrim)) message:"bone1 should have an associated shape prim carrying its geometry."
+        assert_true (bone1shapePrim.IsA(pyUsdGeom.Mesh)) message:"bone1_shape should be an UsdGeomMesh prim."
+        
+        local bone1imageable = pyUsdGeom.Imageable(bone1prim)
+        assert_equal "default" (bone1imageable.ComputePurpose()) message:"bone1's xform prim should have the default purpose."
+        local bone1shapeImageable = pyUsdGeom.Imageable(bone1shapePrim)
+        assert_equal "guide" (bone1shapeImageable.ComputePurpose()) message:"bone1's shape prim should have guide purpose."
+        
+        -- box1 should not be a guide.
+        local box1prim = stage.GetPrimAtPath("/bone1/box1")
+        assert_true (pyUsd.Prim.IsValid(box1prim)) message:"box1 was not exported to the expected prim path."
+        local boxImageable = pyUsdGeom.Imageable(box1prim)
+        assert_equal "default" (boxImageable.ComputePurpose()) message:"box1 one should have the default purpose."
+            
+        -- bone2, should find an xform prim and a shape, the shape should be set as a guide.            
+        local bone2prim = stage.GetPrimAtPath("/bone1/box1/bone2")
+        local bone2shapePrim = stage.GetPrimAtPath("/bone1/box1/bone2/bone2_Shape")
+        assert_true (pyUsd.Prim.IsValid(bone2prim)) message:"bone2 was not exported to the expected prim path."
+        assert_true (bone1prim.IsA(pyUsdGeom.Xform)) message:"bone2 should have been exported to a Xform prim."
+        assert_true (pyUsd.Prim.IsValid(bone2shapePrim)) message:"bone2 should have an associated shape prim carrying its geometry."
+        assert_true (bone1shapePrim.IsA(pyUsdGeom.Mesh)) message:"bone2_shape should be an UsdGeomMesh prim."
+        
+        local bone2imageable = pyUsdGeom.Imageable(bone2prim)
+        assert_equal "default" (bone2imageable.ComputePurpose()) message:"bone2's xform prim should have the default purpose."
+        local bone2shapeImageable = pyUsdGeom.Imageable(bone2shapePrim)
+        assert_equal "guide" (bone2shapeImageable.ComputePurpose()) message:"bone2's shape prim should have the guide purpose."
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_export_bone_as_guides)
+)
+
+runUsdTestFixture export_bones_as_guides_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_chaser_test.ms b/src/Tests/Integration/export_chaser_test.ms
new file mode 100644
index 0000000..b14d2e2
--- /dev/null
+++ b/src/Tests/Integration/export_chaser_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct export_chaser_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_export_chaser_cases = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import export_chaser_test"
+        python.Execute "reload(export_chaser_test)"
+        -- Run tests.
+        python_test = python.import("export_chaser_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_export_chaser_cases
+    )
+)
+
+runUsdTestFixture export_chaser_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_chaser_test.py b/src/Tests/Integration/export_chaser_test.py
new file mode 100644
index 0000000..9a6a92e
--- /dev/null
+++ b/src/Tests/Integration/export_chaser_test.py
@@ -0,0 +1,172 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+import usd_test_helpers
+
+from pymxs import runtime as mxs
+
+import os, sys, glob
+import unittest
+
+class exportChaserFirstTest(maxUsd.ExportChaser):
+    PostExportCalled = False
+    stage = None
+    ChaserNames = set()
+    ChaserArgs = {}
+    primsToNodeHandles = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(exportChaserFirstTest, self).__init__(factoryContext, *args, **kwargs)
+        exportChaserFirstTest.stage = factoryContext.GetStage()
+        exportChaserFirstTest.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+        exportChaserFirstTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        exportChaserFirstTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['first']
+        exportChaserFirstTest.filename = factoryContext.GetFilename()
+
+    def PostExport(self):
+        exportChaserFirstTest.PostExportCalled = True
+        return True
+
+class exportChaserSecondTest(maxUsd.ExportChaser):
+    PostExportCalled = False
+    stage = None
+    ChaserNames = set()
+    ChaserArgs = {}
+    primsToNodeHandles = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(exportChaserSecondTest, self).__init__(factoryContext, *args, **kwargs)
+        exportChaserSecondTest.stage = factoryContext.GetStage()
+        exportChaserSecondTest.primsToNodeHandles = factoryContext.GetPrimsToNodeHandles()
+        exportChaserSecondTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        exportChaserSecondTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['second']
+        exportChaserSecondTest.filename = factoryContext.GetFilename()
+
+    def PostExport(self):
+        exportChaserSecondTest.PostExportCalled = True
+        return True
+
+class testExportChaser(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TEST_EXPORT_CHASER_")
+        
+        mxs.resetMaxFile(mxs.Name('NOPROMPT'))
+        usd_test_helpers.load_usd_plugins()
+
+    def testSimpleExportChaser(self):
+        maxUsd.ExportChaser.Register(exportChaserFirstTest, "first", "Chaser First Test", "This is the first chaser test description")
+        maxUsd.ExportChaser.Register(exportChaserSecondTest, "second")
+        test_sphere = mxs.sphere(r = 3.5, name='apple')
+
+        # export using a dictionary as the chaser args
+        test_usd_file_path = self.output_prefix + "simple_chaser.usda"
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        export_options.ChaserNames = mxs.Array("first")
+        export_options.AllChaserArgs = mxs.Dictionary(mxs.Name('string'), mxs.Array('first', (mxs.Dictionary(mxs.Name('string'), mxs.Array("bar", "ometer"), mxs.Array("foo", "tball")))))
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertFalse(exportChaserSecondTest.PostExportCalled)
+        self.assertIsNotNone(exportChaserFirstTest.stage)
+        self.assertIsNone(exportChaserSecondTest.stage)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('first' in exportChaserFirstTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserSecondTest.filename, "")
+
+        # now set the chaser args using an Array and export again
+        test_usd_file_path = self.output_prefix + "new_args_array_chaser.usda"
+        exportChaserFirstTest.stage = None
+        exportChaserFirstTest.PostExportCalled = False
+        exportChaserFirstTest.filename = ""
+        export_options.AllChaserArgs = mxs.Array("first", "bar", "baric", "first", "foo", "tlocker")
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertFalse(exportChaserSecondTest.PostExportCalled)
+        self.assertIsNotNone(exportChaserFirstTest.stage)
+        self.assertIsNone(exportChaserSecondTest.stage)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('first' in exportChaserFirstTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserSecondTest.filename, "")
+
+        # now call 2 export chasers with their own arguments
+        test_usd_file_path = self.output_prefix + "two_export_chasers.usda"
+        exportChaserFirstTest.stage = None
+        exportChaserFirstTest.PostExportCalled = False
+        exportChaserFirstTest.filename = ""
+        export_options.AllChaserArgs = mxs.Array("first", "bar", "baric", "second", "bar", "ometer", "first", "foo", "tlocker", "second", "foo", "tball")
+        export_options.ChaserNames = mxs.Array("first", "second")
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        self.assertTrue(exportChaserFirstTest.PostExportCalled)
+        self.assertTrue(exportChaserSecondTest.PostExportCalled)
+        self.assertIsNotNone(exportChaserFirstTest.stage)
+        self.assertIsNotNone(exportChaserSecondTest.stage)
+        self.assertEqual(list(exportChaserFirstTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(list(exportChaserSecondTest.primsToNodeHandles.keys())[0], '/apple')
+        self.assertEqual(len(exportChaserFirstTest.ChaserNames), 2)
+        self.assertEqual(len(exportChaserSecondTest.ChaserNames), 2)
+        self.assertTrue('first' in exportChaserFirstTest.ChaserNames)
+        self.assertTrue('second' in exportChaserSecondTest.ChaserNames)
+        self.assertEqual(exportChaserFirstTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertEqual(exportChaserSecondTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(exportChaserFirstTest.filename, test_usd_file_path)
+        self.assertEqual(exportChaserSecondTest.filename, test_usd_file_path)
+
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(
+        unittest.TestLoader().loadTestsFromTestCase(testExportChaser)
+    )
+
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
diff --git a/src/Tests/Integration/export_default_prim_test.ms b/src/Tests/Integration/export_default_prim_test.ms
new file mode 100644
index 0000000..035cdb3
--- /dev/null
+++ b/src/Tests/Integration/export_default_prim_test.ms
@@ -0,0 +1,110 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_DEFAULT_PRIM_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_default_prim_test
+(
+    private
+    exportOptions = USDExporter.CreateOptions(),
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"        		
+    ),
+
+    function test_export_default_prim = (
+        boxA = box()
+        boxA.name = "boxA"
+        boxB = box()
+        boxB.name = "boxB"
+
+        -- Test default prim is set on export selected.
+        select #(boxA, boxB)
+        local exportPath = (output_prefix + "export_default_prim.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+
+        defaultPrim = stage.GetDefaultPrim()
+        assert_true (pyUsd.Prim.IsValid(defaultPrim)) message:"Default prim not valid."
+
+        defaultPrimAtPath = stage.GetPrimAtPath("/" + boxA.name)
+        assert_true (defaultPrimAtPath.GetPath() as string == defaultPrim.GetPath() as string) message:"Expected default prim path not correct."
+
+        -- Test default prim is set on export scene.
+        local exportPath = (output_prefix + "export_scene_2_boxes.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#all
+        stage = pyUsd.Stage.Open(exportPath)
+
+        defaultPrim = stage.GetDefaultPrim()
+        assert_true (pyUsd.Prim.IsValid(defaultPrim)) message:"Default prim not valid."
+        defaultPrimAtPath = stage.GetPrimAtPath("/" + boxA.name)
+        assert_true (defaultPrimAtPath.GetPath() as string == defaultPrim.GetPath() as string) message:"Expected default prim path not correct."
+    ),
+    
+    -- Making sure that prototype (classes) are not considered as default prims. Only 
+    -- consider prims that originate directly from a Max node.
+    function test_default_prim_instance = (
+        -- Create an instances.
+        local originalBox = Box name:"originalBox" pos:[0,0,0] width:10 length:10 height:10
+        local instanceBox = create_clone originalBox #instance "instanceBox"
+        -- When exporting the scene, the first prim will be the class prim that the instances will inherit from.
+        local exportPath = output_prefix + "test_prototype_is_not_default.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+		
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local defaultPrim = stage.GetDefaultPrim()
+        local primPath = defaultPrim.GetPath() as string
+        assert_equal "/originalBox" primPath message:"Prototype prims should not be selected. /originalBox should have been selected as default."
+    ),
+    
+    -- When a root prim path is specified, make sure that the top-most ancestor prim of that path is used as default prim.
+    function test_specifed_root_default_prim = (
+        local box1 = Box name:"Box1"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/foo/bar/baz"
+        exportOptions.FileFormat = #ascii
+        local exportPath = output_prefix + "test_specified_root_is_default_prim.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        -- Make sure the correct prim was selected as default.
+        stage = pyUsd.Stage.Open(exportPath)
+        defaultPrim = stage.GetDefaultPrim()
+        assert_equal "/foo" ((defaultPrim.GetPath()) as string) message:"Incorrect prim selected as default when specifiying a root prim"
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_export_default_prim, 
+        test_default_prim_instance,
+        test_specifed_root_default_prim)
+)
+
+runUsdTestFixture export_default_prim_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_geometry_test.ms b/src/Tests/Integration/export_geometry_test.ms
new file mode 100644
index 0000000..1591a40
--- /dev/null
+++ b/src/Tests/Integration/export_geometry_test.ms
@@ -0,0 +1,122 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_GEOMETRY_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_geometry_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.UsdStagesAsReferences = false
+    ),
+    
+    -- Test that the edge visibility of triangular meshes is adjusted for export so that
+    -- the conversion to poly part of the USD export produces the right results if we are exporting
+    -- poly meshes.
+    function export_triobj_with_bad_edgevis_test = (
+        local boxNode = box()
+        boxNode.name = "box"
+        local boxTriMesh = convertToMesh boxNode
+        -- Set all edge invisible. This would usually break the conversion to Poly that happens 
+        -- on export without additional work (which is what we are testing here!)
+        for i = 1 to boxTriMesh.numfaces do (
+            setEdgeVis boxTriMesh i 1 false
+            setEdgeVis boxTriMesh i 2 false
+            setEdgeVis boxTriMesh i 3 false
+        )
+        local exportPath = output_prefix + "test_hidden_tri_edges.usd"
+        exportOptions.MeshFormat = #polyMesh
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/" + boxNode.name)
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"The box was not properly exported to a USD prim."
+        assert_true (boxPrim.IsA(pyUsdGeom.Mesh)) message:"The box should have been exported to a mesh prim."
+
+        -- Make sure that prior to export, "corner" edges were set to visible.
+        local mesh = pyUsdGeom.Mesh(boxPrim)
+        local vertexCounts = ((boxPrim.GetAttribute("faceVertexCounts")).Get())
+        assert_equal 6 vertexCounts.count messsage:"The box should have been exported to 6 faces."
+            
+        -- Make sure this was done in a copy, and did not affect the mesh in the scene.
+        local edgesShouldBeHiddenError = "The mesh's edges should still be hidden"
+        for i = 1 to boxTriMesh.numfaces do (
+            assert_false (getEdgeVis boxTriMesh i 1) message:edgesShouldBeHiddenError
+            assert_false (getEdgeVis boxTriMesh i 2) message:edgesShouldBeHiddenError
+            assert_false (getEdgeVis boxTriMesh i 3) message:edgesShouldBeHiddenError
+        )
+    ),
+
+    -- Make sure that all of max's geometric objects, which can be converted to either 
+    -- triangular meshes or poly meshes are exported to USD.
+    function export_all_geometric_types_test = (
+        local allObjects = #()
+        allObjects = for o in GeometryClass.classes where o.creatable collect o
+
+        local expectedMeshObjects = #()
+        for i = 1 to allObjects.count do
+        (
+            -- Align the objects in a grid for easy visual inspection...
+            local x = (mod i 10) * 100
+            local y = ((i / 10) as integer) * 100
+            local obj = (allObjects[i] height:10 length:10 width:10)
+            obj.pos.x = x
+            obj.pos.y = y
+            obj.pos.z = 0
+    
+            if ((canConvertTo obj Editable_mesh) or (canConvertTo obj Editable_poly)) then (
+                append expectedMeshObjects obj                
+            )
+        )
+        
+        local exportPath = output_prefix + "export_all_geometric_objects.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPrimAtPath("/")
+        assert_equal expectedMeshObjects.count (root.GetAllChildren()).count message:"Unexpected prim count when exporting all geometric objects."
+    
+        for i = 1 to expectedMeshObjects.count do (
+            local name = expectedMeshObjects[i].name
+            local objPrim = stage.GetPrimAtPath("/" + pyUsdTf.MakeValidIdentifier(name))
+            assert_true (pyUsd.Prim.IsValid(objPrim)) message:(name + " of class " + ((classOf expectedMeshObjects[i]) as string) + " was not properly exported to a USD mesh.")
+            assert_true (objPrim.IsA(pyUsdGeom.Mesh)) message:(name + " of class " + ((classOf expectedMeshObjects[i]) as string) + " should have been exported to a mesh type prim.")
+        )
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(export_triobj_with_bad_edgevis_test,
+        export_all_geometric_types_test)
+)
+
+runUsdTestFixture export_geometry_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_instance_test.ms b/src/Tests/Integration/export_instance_test.ms
new file mode 100644
index 0000000..8c3ec4e
--- /dev/null
+++ b/src/Tests/Integration/export_instance_test.ms
@@ -0,0 +1,770 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+/* ********************************************************************************************************
+    @param Desc             : Set offline due to Python issue in 2022 - MAXX-62109, avoid pipeline noise
+    @param Status           : Offline
+******************************************************************************************************** */
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pySdf = python.import("pxr.Sdf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_INSTANCE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_instance_test
+(    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function test_copy_types = (
+        originalBox = Box name:"originalBox" pos:[0,0,0] width:10 length:10 height:10
+        instanceBox = create_clone originalBox #instance "instanceBox"
+        referenceBox = create_clone originalBox #reference "referenceBox"
+        create_clone originalBox #copy "copyBox"
+        
+        exportPath = output_prefix + "test_copy_types.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        referenceBoxPrim = stage.GetPrimAtPath("/referenceBox")
+        copyBoxPrim = stage.GetPrimAtPath("/copyBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        
+        assert_true (originalBoxPrim.IsInstance()) message:"originalBox prim should be instanceable"
+        assert_true (referenceBoxPrim.IsInstance()) message:"referenceBoxPrim prim should be instanceable"
+        assert_false (copyBoxPrim.IsInstance()) message:"copyBoxPrim prim should be instanceable"
+        assert_true (instanceBoxPrim.IsInstance())message:"instanceBoxPrim prim should be instanceable"
+    ),
+
+    function test_reference_with_modifier = (
+        originalBox = Box name:"originalBox" pos:[0,0,0] width:10 length:10 height:10
+        instanceBox = create_clone originalBox #instance "instanceBox"
+        referenceBox = create_clone originalBox #reference "referenceBox"
+        referenceBoxWithModifier = create_clone originalBox #reference "referenceBoxWithModifier"
+        
+        bendModifier = Bend()
+        twistModifier = Twist()
+        addModifier referenceBoxWithModifier bendModifier
+        addModifier instanceBox twistModifier
+        
+        exportPath = output_prefix + "test_reference_with_modifier.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        referenceBoxPrim = stage.GetPrimAtPath("/referenceBox")
+        referenceWithModifierPrim = stage.GetPrimAtPath("/referenceBoxWithModifier")
+        
+        assert_true (originalBoxPrim.IsInstance()) message:"originalBoxPrim prim should be instanceable"
+        assert_true (instanceBoxPrim.IsInstance()) message:"instanceBoxPrim prim should be instanceable"
+        assert_true (referenceBoxPrim.IsInstance()) message:"referenceBoxPrim prim should be instanceable"
+        assert_false (referenceWithModifierPrim.IsInstance()) message:"referenceWithModifierPrim prim should not be instanceable"
+    ),
+
+    function test_space_warp = (
+        originalBox1 = Box name:"originalBox1" pos:[0,0,0] width:10 length:10 height:10
+        instanceBox1 = create_clone originalBox1 #instance "instanceBox1"
+        
+        originalBox2 = Box name:"originalBox2" pos:[0,0,0] width:10 length:10 height:10
+        instanceBox2 = create_clone originalBox2 #instance "instanceBox2"
+        instanceBox3 = create_clone originalBox2 #instance "instanceBox3"
+        
+        bombSpaceWarp = Bomb name:"bombSpaceWarp"
+        bindSpaceWarp originalBox1 bombSpaceWarp
+        bindSpaceWarp originalBox2 bombSpaceWarp
+        
+        exportPath = output_prefix + "test_space_warp.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBox1Prim = stage.GetPrimAtPath("/originalBox1")
+        originalBox2Prim = stage.GetPrimAtPath("/originalBox2")
+        instanceBox1Prim = stage.GetPrimAtPath("/instanceBox1")
+        instanceBox2Prim = stage.GetPrimAtPath("/instanceBox2")
+        instanceBox3Prim = stage.GetPrimAtPath("/instanceBox3")
+        
+        assert_false (originalBox1Prim.IsInstance()) message:"originalBox1Prim prim should not be instanceable"
+        assert_false (instanceBox1Prim.IsInstance()) message:"instanceBox1Prim prim should not be instanceable"
+        assert_false (originalBox2Prim.IsInstance()) message:"originalBox2Prim prim should not be instanceable"
+        assert_true (instanceBox2Prim.IsInstance()) message:"instanceBox2Prim prim should be instanceable"
+        assert_true (instanceBox3Prim.IsInstance()) message:"instanceBox2Prim prim should be instanceable"
+    ),
+    
+    function test_helper_instancing testGeometryHelpers = (
+        allHelpers = for o in Helper.classes where o.creatable collect o
+        for i = 1 to allHelpers.count do
+        (
+            -- Instanciate the helper type, and clone it to potentially trigger instancing on export.
+            local obj = allHelpers[i]()
+            local hasGeometry = canConvertTo obj Editable_mesh
+            -- Filter out helpers with / without geometry, depending what we are testing.
+            if (testGeometryHelpers and not hasGeometry) or (not testGeometryHelpers and hasGeometry) then (
+                delete obj                
+                continue
+            )    
+            -- Some helpers cannot be instanciated... skip those.
+            clone =  create_clone obj #instance ("Instance of " + obj.Name)        
+            if (clone == undefined) then (
+                delete obj
+            )
+        )
+        
+        exportPath = output_prefix + "helpers_not_instanced_with_geom_" + (testGeometryHelpers as string) + ".usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rootPrim = stage.GetPseudoRoot()
+        local helperPrims = rootPrim.GetAllChildren()
+        
+        -- Make sure that helpers are instances, or not, depending on what we are testing.
+        for i = 1 to helperPrims.count do (
+            local prim = helperPrims[i]
+            -- Skip class prims.
+            if (prim.GetSpecifier() == pySdf.SpecifierClass) then (
+                continue
+            )
+            
+            local isInstance = (prim.IsInstance())
+            if (testGeometryHelpers) then (
+                assert_true isInstance message:(prim.GetName() + " was exported from a helper node with geometry, it should be instanced.")   
+            )
+            else (
+                assert_false isInstance message:(prim.GetName() + " was exported from a helper node without geometry, it should not be instanced.")   
+            )
+        )
+    ),
+            
+    function test_helpers_without_geometry_are_not_instanced = (
+        -- Test that helpers with geometry can be instanced.        
+        test_helper_instancing true
+        resetMaxFile #noprompt
+        -- Test that helpers without geometry (they are basically exported to Xform prims) are NOT instanced.
+        test_helper_instancing false 
+    ),
+
+    function perform_transform_test file_postfix = (
+        box1 = Box name:"box1" pos:[10,0,0] width:10 length:10 height:10
+        box2 = create_clone box1 #instance "box2"
+        box2.pos = [-10,0,0]
+        
+        -- add offset transform on box2
+        box2.objectOffsetPos = [0, 0, 10]
+        
+        exportPath = output_prefix + file_postfix
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath("/box1")
+        box2Prim = stage.GetPrimAtPath("/box2")
+        box1ShapePrim = stage.GetPrimAtPath("/box1/box1_Shape")
+        box2ShapePrim = stage.GetPrimAtPath("/box2/box2_Shape")
+        box1MeshPrim = stage.GetPrimAtPath("/box1/box1")
+        box2MeshPrim = stage.GetPrimAtPath("/box2/box2_Shape/box1")
+        
+        assert_true (box1Prim.IsInstance()) message:"box1 prim should be instanceable"
+        assert_false (pyUsd.Prim.IsValid(box1ShapePrim)) message:"box1_Shape prim should not have been created."
+        assert_false (box2Prim.IsInstance()) message:"instanceBox1Prim prim should not be instanceable"
+        assert_true (box2ShapePrim.IsInstance()) message:"instanceBox1Prim prim should not be instanceable"
+
+        box1Mesh = pyUsdGeom.Mesh(box1MeshPrim)
+        box2Mesh = pyUsdGeom.Mesh(box2MeshPrim)
+
+        box1Points = ((box1Mesh.GetPointsAttr()).Get())
+        box2Points = ((box2Mesh.GetPointsAttr()).Get())
+
+        expectedPoints = #(#(-5,-5,0), #(5,-5,0), #(-5,5,0), #(5,5,0), #(-5,-5,10), #(5,-5,10), #(-5,5,10), #(5,5,10))
+        assert_true (compare2dMatrix box1Points expectedPoints 8 3)
+        assert_true (compare2dMatrix box2Points expectedPoints 8 3)
+
+        box1Xformable = pyUsdGeom.Xformable(box1Prim)
+        box2Xformable = pyUsdGeom.Xformable(box2Prim)
+        box2ShapeXformable = pyUsdGeom.Xformable(box2ShapePrim)
+        box1MeshXformable = pyUsdGeom.Xformable(box1MeshPrim)
+        box2MeshXformable = pyUsdGeom.Xformable(box2MeshPrim)
+        
+        box1Transform = box1Xformable.GetLocalTransformation()
+        box2Transform = box2Xformable.GetLocalTransformation()
+        box2ShapeTransform = box2ShapeXformable.GetLocalTransformation()
+        box1MeshTransform = box1MeshXformable.GetLocalTransformation()
+        box2MeshTransform = box2MeshXformable.GetLocalTransformation()
+            
+        expectedNoTransform = #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 0, 1))
+        expectedBox1Transform = #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #( 10, 0, 0, 1) )
+        expectedBox2Transform = #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(-10, 0, 0, 1) )
+        expectedBox2ShapeTransform = #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 10, 1) )       
+            
+        assert_true (compare2dMatrix box1Transform expectedBox1Transform 4 4)
+        assert_true (compare2dMatrix box2Transform expectedBox2Transform 4 4)
+        assert_true (compare2dMatrix box2ShapeTransform expectedBox2ShapeTransform 4 4)
+        assert_true (compare2dMatrix box1MeshTransform expectedNoTransform 4 4)
+        assert_true (compare2dMatrix box2MeshTransform expectedNoTransform 4 4)
+    ),
+    
+    function test_baked_transform = (
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.BakeObjectOffsetTransform = true
+        perform_transform_test "test_baked_transform.usda"
+    ),
+    
+    function test_transform_not_baked = (
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.BakeObjectOffsetTransform = false
+        perform_transform_test "test_transform_not_baked.usda"
+    ),
+    
+    function test_naming_conflicts = (
+        box1 = Box name:"box" pos:[10,0,0] width:10 length:10 height:10
+        create_clone box1 #instance "box"
+        
+        box2 = Box name:"box" pos:[20,0,0] width:20 length:20 height:20
+        create_clone box2 #instance "box"
+        
+        exportPath = output_prefix + "test_naming_conflicts.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        classBoxPrim = stage.GetPrimAtPath("/_class_box")
+        boxPrim = stage.GetPrimAtPath("/box")
+        box1Prim = stage.GetPrimAtPath("/box1")
+        classBox2Prim = stage.GetPrimAtPath("/_class_box2")
+        box2Prim = stage.GetPrimAtPath("/box2")
+        box3Prim = stage.GetPrimAtPath("/box3")
+        
+        assert_true (pyUsd.Prim.IsValid(classBoxPrim)) message:"A box was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"A box was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"A box was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(classBox2Prim)) message:"A box was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"A box was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"A box was not exported to a USD prim as expected."  
+    ),
+    
+    -- Instancing can force us to use a *_Shape prim. Indeed, if a node has children, or if the object 
+    -- has an offset, we cannot export the node and its attached object (mesh) to a single USD prim. 
+    -- Indeed, instanced prims will ignore their children, and we cannot bake the offset into the geometry
+    -- if the geometry is to be reused elsewhere.
+    function test_instance_with_childrens_or_offset = (
+        box1 = Box name:"box1" pos:[10,0,0] width:10 length:10 height:10
+        box2 = create_clone box1 #instance "box2"
+        box3 = Box name:"box3" pos:[10,0,0] width:10 length:10 height:10
+        
+        box4 = create_clone box1 #instance "box4"
+        box4.objectOffsetPos = [0, 0, 10]
+        
+        append box2.children box3
+        
+        exportPath = output_prefix + "test_instance_with_childrens.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath("/box1")
+        box2Prim = stage.GetPrimAtPath("/box2")
+        box2ShapePrim = stage.GetPrimAtPath("/box2/box2_Shape")
+        box3Prim = stage.GetPrimAtPath("/box2/box3")
+        box4Prim = stage.GetPrimAtPath("/box4")
+        box4ShapePrim = stage.GetPrimAtPath("/box4/box4_Shape")
+        
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"box2 was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box2ShapePrim)) message:"box2 should have a Shape prim, as the object is instanced and has children."
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"box3 was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box4Prim)) message:"box4 was not exported to a USD prim as expected."
+        assert_true (pyUsd.Prim.IsValid(box4ShapePrim)) message:"box4 should have a Shape prim, as the object has an offset."
+        
+        assert_true (box1Prim.IsInstance()) message:"/box1 should be an instance."
+        assert_false (box2Prim.IsInstance()) message:"/box2 should not be instance."
+        assert_true (box2ShapePrim.IsInstance()) message:"/box2/box2_Shape should be an instance."
+        assert_false (box3Prim.IsInstance()) message:"/box2/box3 should not be instance."
+        assert_false (box4Prim.IsInstance()) message:"/box4 should not be instance."
+        assert_true (box4ShapePrim.IsInstance()) message:"/box4/box4_Shape should be an instance."
+    ),
+    
+    function test_export_invisible_instance = (
+        box1 = Box name:"box1" pos:[10,0,0] width:10 length:10 height:10
+        box2 = create_clone box1 #instance "box2"
+        
+        box2.isHidden = true
+        
+        exportPath = output_prefix + "test_export_invisible_instance.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.HiddenObjects = true
+        exportOptions.UseUSDVisibility = true
+        exportOptions.RootPrimPath = "/"
+                
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+
+        box2Prim = stage.GetPrimAtPath("/box2")
+        imageablePrim = pyUsdGeom.Imageable(box2Prim)
+        visibilityAttr = imageablePrim.GetVisibilityAttr()
+        visibility = (visibilityAttr.Get())
+        assert_equal "invisible" visibility message:"Unexpected visible box, should be invisible."
+    ),
+
+    function test_export_instance_reuse_parent_prim = (
+        sphere1 = Sphere name:"sphere1" pos:[10,0,0] radius:10 width:10 length:10 height:10
+        sphere2 = create_clone sphere1 #instance "sphere2"
+        point1 = Point pos:[10,0,0] name:"point1"
+        sphere2.parent = point1
+        
+        exportPath = output_prefix + "test_export_instance_reuse_parent_prim.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+
+        point1Prim = stage.GetPrimAtPath("/point1")
+        assert_true (point1Prim.IsInstance()) message:"point1Prim prim should be an instance"
+            
+        -- Make sure that the exported prims are at the right transform. This was a regression 
+        -- following the support for animation.
+        local xformable = pyUsdGeom.Xformable(point1Prim)
+        assert_true (compareUsdAndMaxTransforms (xformable.ComputeLocalToWorldTransform(0)) sphere2.transform) message:"Incorrect transform when reusing the parent for instancing."
+        
+        -- Make sure no prim was exported for the instance at "/point1/sphere2"
+        -- Disable instancing on point1 just so that any of its children are not pruned when composing.
+        point1Prim.SetInstanceable(false)
+        local sphere2 = stage.GetPrimAtPath("/point1/sphere2")
+        assert_false (sphere2.IsValid()) message:"Parent is reused for instancing, no prim should have been created."
+    ),
+    
+    function test_export_selected_instance_reuse_parent_prim = (
+        sphere1 = Sphere name:"sphere1" pos:[10,0,0] radius:10 width:10 length:10 height:10
+        sphere2 = create_clone sphere1 #instance "sphere2"
+        point1 = Point pos:[10,0,0] name:"point1"
+        sphere2.parent = point1
+        
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        -- Test when exporting selection and parent is selected. Parent should be reused.
+        select sphere1
+        selectmore sphere2
+        selectmore point1
+        exportPath = output_prefix + "test_export_selected_parent_instance_reuse_parent_prim.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        assert_true (point1Prim.IsInstance()) message:"point1Prim prim should be an instance"
+            
+        -- Test when exporting selection and parent is not selected. Parent cant be reused.
+        select sphere1
+        selectmore sphere2
+        exportPath = output_prefix + "test_export_unselected_parent_instance_reuse_parent_prim.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+        shpere2Prim = stage.GetPrimAtPath("/sphere2")
+        assert_true (shpere2Prim.IsInstance()) message:"shpere2Prim prim should be an instance"
+    ),
+    
+    function test_export_node_list_instance_reuse_parent_prim = (
+        sphere1 = Sphere name:"sphere1" pos:[10,0,0] radius:10 width:10 length:10 height:10
+        sphere2 = create_clone sphere1 #instance "sphere2"
+        point1 = Point pos:[10,0,0] name:"point1"
+        sphere2.parent = point1
+        
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        -- Test when a node and it's parent are exported. Parent should be reused.
+        exportPath = output_prefix + "test_export_selected_parent_instance_reuse_parent_prim.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(sphere1, point1, sphere2)
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        assert_true (point1Prim.IsInstance()) message:"point1Prim prim should be an instance"
+            
+        -- Test when a node's parent is not exported. Parent cant be reused.
+        exportPath = output_prefix + "test_export_unselected_parent_instance_reuse_parent_prim.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(sphere1, sphere2)
+        stage = pyUsd.Stage.Open(exportPath)
+        shpere2Prim = stage.GetPrimAtPath("/sphere2")
+        assert_true (shpere2Prim.IsInstance()) message:"shpere2Prim prim should be an instance"
+    ),
+    
+    function test_export_instance_not_reuse_parent_prim_when_more_than_one_child = (
+        sphere1 = Sphere name:"sphere1" pos:[10,0,0] radius:10 width:10 length:10 height:10
+        sphere2 = create_clone sphere1 #instance "sphere2"
+        point1 = Point pos:[10,0,0] name:"point1"
+        sphere2.parent = point1
+        sphere1.parent = point1
+        
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_prim_when_more_than_one_child.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions        
+        stage = pyUsd.Stage.Open(exportPath)
+
+        point1Prim = stage.GetPrimAtPath("/point1")
+        sphere1Prim = stage.GetPrimAtPath("/point1/sphere1")
+        sphere2Prim = stage.GetPrimAtPath("/point1/sphere2")
+        assert_false (point1Prim.IsInstance()) message:"point1Prim prim should not be an instance."
+        assert_true (sphere1Prim.IsInstance()) message:"sphere1Prim prim should be an instance."
+        assert_true (sphere2Prim.IsInstance()) message:"sphere2Prim prim should be an instance."
+    ),
+    
+    function test_export_instance_not_reuse_parent_prim_when_parent_is_not_a_point = (
+        sphere1 = Sphere name:"sphere1" pos:[10,0,0] radius:10 width:10 length:10 height:10
+        sphere2 = create_clone sphere1 #instance "sphere2"
+        dummy1 = Dummy pos:[10,0,0] name:"dummy1"
+        sphere2.parent = dummy1
+        
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_prim_when_parent_is_not_a_point.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+
+        point1Prim = stage.GetPrimAtPath("/dummy1")
+        sphere1Prim = stage.GetPrimAtPath("/sphere1")
+        sphere2Prim = stage.GetPrimAtPath("/dummy1/sphere2")
+        assert_false (point1Prim.IsInstance()) message:"dummy1 prim should not be an instance."
+        assert_true (sphere1Prim.IsInstance()) message:"sphere1Prim prim should be an instance."
+        assert_true (sphere2Prim.IsInstance()) message:"sphere2Prim prim should be an instance."
+    ),
+
+    function test_export_instance_reuse_parent_prim_should_have_correct_transforms = (
+        teapot1 = Teapot name:"teapot1" pos:[1000009,10,0] width:10 length:10 height:10
+        teapot2 = create_clone teapot1 #instance "teapot2"
+        point1 = Point pos:[9,5,0] name:"point1"
+        teapot1.parent = point1
+        
+        exportPath = output_prefix + "test_export_instance_reuse_parent_prim_should_have_correct_transforms.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+
+        assert_true (point1Prim.IsInstance()) message:"point1 prim should be an instance."
+        point1XFormPrim = pyUsdGeom.Xformable(point1Prim)
+        xformOps = point1XFormPrim.GetOrderedXformOps()
+        transform1 = xformOps[1].GetOpTransform(pyUsd.TimeCode.Default())
+        transform2 = xformOps[2].GetOpTransform(pyUsd.TimeCode.Default())
+        assert_undefined xformOps[3]
+        
+        expectingOps1 = #(#(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(9, 5, 0, 1))
+        expectingOps2 = #(#(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(1000000, 5, 0, 1))
+        assert_true (compare2dMatrix expectingOps1 expectingOps1 4 4) message:"Unexpected transform"
+        assert_true (compare2dMatrix expectingOps2 expectingOps2 4 4) message:"Unexpected transform"    
+    ),
+    
+    function test_export_instance_not_reuse_parent_on_metadata_conflict = (
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+                usd_hidden type:#boolean
+                usd_kind type:#string
+            )
+        )
+        
+        teapot1 = Teapot name:"teapot1"
+        teapot2 = create_clone teapot1 #instance "teapot2"
+        point1 = Point name:"point1"
+        teapot1.parent = point1
+        
+        -- Test different usd_hidden
+        custAttributes.add teapot1.baseObject usdAllCA #Unique BaseObject:true
+        teapot1.usd_hidden = false
+        teapot1.usd_kind = "component"
+        teapot1.usd_purpose = "render"
+
+        custAttributes.add point1.baseObject usdAllCA #Unique BaseObject:true
+        point1.usd_hidden = true
+        point1.usd_kind = "component"
+        point1.usd_purpose = "render"
+        
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_on_metadata_conflict_hidden.usda"
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        teapot1Prim = stage.GetPrimAtPath("/point1/teapot1")
+        
+        local imageablePoint1 = pyUsdGeom.Imageable(point1Prim)
+        local imageableTeapot1 = pyUsdGeom.Imageable(teapot1Prim)       
+        local purposePoint1 = imageablePoint1.GetPurposeAttr()
+        local purposeTeapot1 = imageableTeapot1.GetPurposeAttr()
+        local point1Model = pyUsd.ModelAPI(point1Prim)
+        local teapot1Model = pyUsd.ModelAPI(teapot1Prim)
+        
+        assert_equal point1.usd_purpose (purposeTeapot1.Get())
+        assert_equal teapot1.usd_purpose (purposeTeapot1.Get())
+        assert_equal point1.usd_kind (point1Model.GetKind())
+        assert_equal teapot1.usd_kind (teapot1Model.GetKind())
+        assert_equal point1.usd_hidden (point1Prim.IsHidden())
+        assert_equal teapot1.usd_hidden (teapot1Prim.IsHidden())
+            
+        assert_false (point1Prim.IsInstance()) message:"point1 prim should not be an instance."
+        assert_true (teapot1Prim.IsInstance()) message:"teapot1 prim should be an instance."
+        
+        -- Test different usd_kind
+        point1.usd_hidden = false
+        point1.usd_kind = "model"
+            
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_on_metadata_conflict_kind.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        teapot1Prim = stage.GetPrimAtPath("/point1/teapot1")
+        
+        local imageablePoint1 = pyUsdGeom.Imageable(point1Prim)
+        local imageableTeapot1 = pyUsdGeom.Imageable(teapot1Prim)       
+        local purposePoint1 = imageablePoint1.GetPurposeAttr()
+        local purposeTeapot1 = imageableTeapot1.GetPurposeAttr()
+        local point1Model = pyUsd.ModelAPI(point1Prim)
+        local teapot1Model = pyUsd.ModelAPI(teapot1Prim)
+        
+        assert_equal point1.usd_purpose (purposeTeapot1.Get())
+        assert_equal teapot1.usd_purpose (purposeTeapot1.Get())
+        assert_equal point1.usd_kind (point1Model.GetKind())
+        assert_equal teapot1.usd_kind (teapot1Model.GetKind())
+        assert_equal point1.usd_hidden (point1Prim.IsHidden())
+        assert_equal teapot1.usd_hidden (teapot1Prim.IsHidden())
+            
+        assert_false (point1Prim.IsInstance()) message:"point1 prim should not be an instance."
+        assert_true (teapot1Prim.IsInstance()) message:"teapot1 prim should be an instance."
+            
+        -- Test different usd_purpose
+        point1.usd_kind = "component"
+        point1.usd_purpose = "proxy"
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_on_metadata_conflict_purpose.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        teapot1Prim = stage.GetPrimAtPath("/point1/teapot1")
+        
+        local imageablePoint1 = pyUsdGeom.Imageable(point1Prim)
+        local imageableTeapot1 = pyUsdGeom.Imageable(teapot1Prim)       
+        local purposePoint1 = imageablePoint1.GetPurposeAttr()
+        local purposeTeapot1 = imageableTeapot1.GetPurposeAttr()
+        local point1Model = pyUsd.ModelAPI(point1Prim)
+        local teapot1Model = pyUsd.ModelAPI(teapot1Prim)
+        
+        assert_equal point1.usd_purpose (purposePoint1.Get())
+        assert_equal teapot1.usd_purpose (purposeTeapot1.Get())
+        assert_equal point1.usd_kind (point1Model.GetKind())
+        assert_equal teapot1.usd_kind (teapot1Model.GetKind())
+        assert_equal point1.usd_hidden (point1Prim.IsHidden())
+        assert_equal teapot1.usd_hidden (teapot1Prim.IsHidden())
+            
+        assert_false (point1Prim.IsInstance()) message:"point1 prim should not be an instance."
+        assert_true (teapot1Prim.IsInstance()) message:"teapot1 prim should be an instance."
+            
+        -- Validate if the metadata is the same, we should reuse parent prim
+        point1.usd_purpose = "render"
+            
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_on_metadata_conflict.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point1Prim = stage.GetPrimAtPath("/point1")
+        
+        local imageablePoint1 = pyUsdGeom.Imageable(point1Prim) 
+        local purposePoint1 = imageablePoint1.GetPurposeAttr()
+        local point1Model = pyUsd.ModelAPI(point1Prim)
+        
+        assert_equal point1.usd_purpose (purposePoint1.Get())
+        assert_equal point1.usd_kind (point1Model.GetKind())
+        assert_equal point1.usd_hidden (point1Prim.IsHidden())
+            
+        assert_true (point1Prim.IsInstance()) message:"point1 prim should be an instance."
+            
+        -- Should reuse parent prim even if an object doesn't have some or all the metadata.
+        usdPurposeOnlyCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+            )
+        )
+        teapot3 = create_clone teapot2 #instance "teapot3"
+        point2 = Point name:"point2"
+        teapot3.parent = point2
+        
+        custAttributes.add teapot3.baseObject usdAllCA #Unique BaseObject:true
+        teapot3.usd_hidden = false
+        teapot3.usd_kind = "component"
+        teapot3.usd_purpose = "render"
+
+        custAttributes.add point2.baseObject usdPurposeOnlyCA #Unique BaseObject:true
+        point2.usd_purpose = "render"
+        
+        exportPath = output_prefix + "test_export_instance_not_reuse_parent_on_metadata_conflict_unused_data.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        point2Prim = stage.GetPrimAtPath("/point2")
+        
+        local imageablePoint2 = pyUsdGeom.Imageable(point2Prim) 
+        local purposePoint2 = imageablePoint2.GetPurposeAttr()
+        local point2Model = pyUsd.ModelAPI(point2Prim)
+        
+        assert_equal teapot3.usd_kind (point2Model.GetKind())
+        assert_equal teapot3.usd_hidden (point2Prim.IsHidden())
+        assert_equal teapot3.usd_purpose (purposePoint2.Get())
+            
+        assert_true (point2Prim.IsInstance()) message:"point2 prim should be an instance."
+    ),
+    
+    function test_export_single_max_instance_does_not_create_usd_instance  = (
+        originalBox = Box name:"originalBox" pos:[0,0,0] width:10 length:10 height:10
+        instanceBox = create_clone originalBox #instance "instanceBox"
+
+        exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        -- 1) Via selection.
+        
+        -- Make sure that we dont generate instances on the USD side if a single instance is exported.
+        select instanceBox
+        exportPath = output_prefix + "test_export_single_instance_by_selection.usda"
+
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        assert_false (originalBoxPrim.IsValid()) message:"originalBox prim should not have been exported."
+        assert_false (instanceBoxPrim.IsInstance())message:"instanceBoxPrim prim should not be instanceable, as it is exported alone."
+        
+        -- If multiple instances are selected, we should now get instances.
+        selectmore originalBox
+        
+        exportPath = output_prefix + "test_export_two_instances_by_selection.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        assert_true (originalBoxPrim.IsInstance()) message:"originalBox should be an instance."
+        assert_true (instanceBoxPrim.IsInstance())message:"instanceBoxPrim prim should be an instance."
+        
+        clearSelection()
+        
+        -- 2) Via node list 
+            
+        -- Make sure that we dont generate instances on the USD side if a single instance is exported.
+        exportPath = output_prefix + "test_export_single_instance_by_node_list.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(instanceBox)
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        assert_false (originalBoxPrim.IsValid()) message:"originalBox prim should not have been exported."
+        assert_false (instanceBoxPrim.IsInstance())message:"instanceBoxPrim prim should not be an instance, as it is exported alone."
+            
+        -- If multiple instances are selected, we should now get instances.
+        
+        exportPath = output_prefix + "test_export_two_instances_by_node_list.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(instanceBox, originalBox)
+        stage = pyUsd.Stage.Open(exportPath)
+        originalBoxPrim = stage.GetPrimAtPath("/originalBox")
+        instanceBoxPrim = stage.GetPrimAtPath("/instanceBox")
+        assert_true (originalBoxPrim.IsInstance()) message:"originalBox prim should be an instance."
+        assert_true (instanceBoxPrim.IsInstance())message:"instanceBoxPrim prim should be an instance."
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_copy_types,
+        test_reference_with_modifier,
+        test_space_warp, test_baked_transform,
+        test_helpers_without_geometry_are_not_instanced,
+        test_transform_not_baked,
+        test_naming_conflicts,
+        test_instance_with_childrens_or_offset,
+        test_export_invisible_instance,
+        test_export_instance_reuse_parent_prim,
+        test_export_selected_instance_reuse_parent_prim,
+        test_export_node_list_instance_reuse_parent_prim,
+        test_export_instance_not_reuse_parent_prim_when_more_than_one_child,
+        test_export_instance_not_reuse_parent_prim_when_parent_is_not_a_point,
+        test_export_instance_reuse_parent_prim_should_have_correct_transforms,
+        test_export_instance_not_reuse_parent_on_metadata_conflict,
+        test_export_single_max_instance_does_not_create_usd_instance
+        )
+)
+
+runUsdTestFixture export_instance_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_light_test.ms b/src/Tests/Integration/export_light_test.ms
new file mode 100644
index 0000000..ac446e4
--- /dev/null
+++ b/src/Tests/Integration/export_light_test.ms
@@ -0,0 +1,990 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdLux = python.import("pxr.UsdLux")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_LIGHT_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_light_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    initialUnits,
+    initialScale,
+
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+
+        -- properly set system units in order to get expected results from tests
+        initialUnits = units.SystemType
+        units.SystemType = #inches
+        initialScale = units.SystemScale
+        units.SystemScale = 1
+    ),
+    
+    -- Tests to validate the USD light type created from a given 3ds Max Photometric light type at export
+    -- A USD light is created based on the Photometric Light Shape and its selected light distribution type
+    -- Each photometric light shape has a 'target' sibling type (i.e. Point Target, Sphere Target, etc.)
+    -- Below is the expected conversion grid :
+    ----------------------------------------------------------------------------------------------------
+    --                                            3ds Max Photometric Light Shapes
+    --                              Point      Sphere     Disc        Line      Cylinder    Rectangle
+    -----------------------------------------|--------|-----------|-----------|----------|--------------
+    --              |  diffuse  |  DiskLight |   n/a  | DiskLight | RectLight |    n/a   |  RectLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    -- Distribution | spherical |            SphereLight          |           CylinderLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    --     Type     |    Spot   |  DiskLight |   n/a  | DiskLight | RectLight |    n/a   |  RectLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    --              |  Web/IES  |  DiskLight | Sphere | DiskLight | RectLight | Cylinder |  RectLight
+    ----------------------------------------------------------------------------------------------------   
+    function photometric_light_general_attributes_export_test = (
+        local exportPath = output_prefix + "test_photometric_light_gen_attr_default_export.usda"
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        -- taking the point light as a general sample for the attributes that affects all photometric lights
+        local pointLight = free_light()
+        pointLight.type = #Free_Point
+        pointLight.distribution = 2 -- uniform hemispherical/diffuse
+        -- use default attributes on photometric lights
+
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + pointLight.name
+        usd_light = pyUsdLux.BoundableLightBase.Get stage usd_light_path
+        
+        local lightDiffuseAttr = usd_light.GetDiffuseAttr()
+        assert_float_equal 1.0 (lightDiffuseAttr.Get()) message:(pointLight.name + " light is expected to have an effect of this light on the diffuse response of materials by default.")
+        local lightSpecularAttr = usd_light.GetSpecularAttr()
+        assert_float_equal 1.0 (lightSpecularAttr.Get()) message:(pointLight.name + " light is expected to have an effect of this light on the specular response of materials by default.")
+        
+        local lightNormalizeAttr = usd_light.GetNormalizeAttr()
+        assert_true (lightNormalizeAttr.Get()) message:(pointLight.name + " light is expected to use normalized intensity.")
+        local lightEnableColorTemperatureAttr = usd_light.GetEnableColorTemperatureAttr()
+        assert_false (lightEnableColorTemperatureAttr.Get()) message:(pointLight.name + " light is not expected to use color temprature (Kelvin) by default.")
+            
+        -- The default color of the 'free_light' is equal to (1.0, 1.0, 1.0)
+        local lightColorAttr = usd_light.GetColorAttr()
+        local lightColorValue = lightColorAttr.Get()
+        assert_float_equal 1.0 lightColorValue[1] message:"The light color value should default at 1.0"
+        assert_float_equal 1.0 lightColorValue[2] message:"The light color value should default at 1.0"
+        assert_float_equal 1.0 lightColorValue[3] message:"The light color value should default at 1.0"
+
+        local lightShadowAPI = pyUsdLux.ShadowAPI(usd_light)
+        local lightShadowAPI_ShadowEnableAttr = lightShadowAPI.GetShadowEnableAttr()
+        assert_true (lightShadowAPI_ShadowEnableAttr.Get()) message:(pointLight.name + " light is expected to enable shadows to be cast by the light.")
+
+        -- The default shadow color of the 'free_light' is equal to (0.0, 0.0, 0.0)
+        local lightShadowAPI_ShadowColorAttr = lightShadowAPI.GetShadowColorAttr()
+        local lightShadowAPI_ShadowColor = lightShadowAPI_ShadowColorAttr.Get()
+        assert_float_equal 0.0 lightShadowAPI_ShadowColor[1] message:(pointLight.name + " light shadow color value (R) should default at 0.0")
+        assert_float_equal 0.0 lightShadowAPI_ShadowColor[2] message:(pointLight.name + " light shadow color value (G) should default at 0.0")
+        assert_float_equal 0.0 lightShadowAPI_ShadowColor[3] message:(pointLight.name + " light shadow color value (B) should default at 0.0")
+
+        -- now changing the default settings
+        pointLight.affectDiffuse = 0
+        pointLight.affectSpecular = 0
+        pointLight.useKelvin = true
+        pointLight.shadowColor = color 255 255 255
+        pointLight.baseobject.castShadows = false
+        pointLight.on = false -- turning the light off should not affect the export to USD
+            
+        local exportPath = output_prefix + "test_photometric_light_gen_attr_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + pointLight.name
+        usd_light = pyUsdLux.BoundableLightBase.Get stage usd_light_path
+        
+        lightDiffuseAttr = usd_light.GetDiffuseAttr()
+        assert_float_equal 0.0 (lightDiffuseAttr.Get()) message:(pointLight.name + " light is not expected to have an effect of this light on the diffuse response of materials.")
+        lightSpecularAttr = usd_light.GetSpecularAttr()
+        assert_float_equal 0.0 (lightSpecularAttr.Get()) message:(pointLight.name + " light is not expected to have an effect of this light on the specular response of materials")
+        
+        -- keep normalized intensity on light (always)
+        lightNormalizeAttr = usd_light.GetNormalizeAttr()
+        assert_true (lightNormalizeAttr.Get()) message:(pointLight.name + " light is expected to use normalized intensity.")
+
+        lightEnableColorTemperatureAttr = usd_light.GetEnableColorTemperatureAttr()
+        assert_true (lightEnableColorTemperatureAttr.Get()) message:(pointLight.name + " light is expected to use color temprature (Kelvin).")
+
+        lightShadowAPI = pyUsdLux.ShadowAPI(usd_light)
+        lightShadowAPI_ShadowEnableAttr = lightShadowAPI.GetShadowEnableAttr()
+        assert_false (lightShadowAPI_ShadowEnableAttr.Get()) message:(pointLight.name + " light is not expected to enable shadows to be cast by the light.")
+
+        -- The shadow color of the 'free_light' is equal to (1.0, 1.0, 1.0)
+        lightShadowAPI_ShadowColorAttr = lightShadowAPI.GetShadowColorAttr()
+        lightShadowAPI_ShadowColor = lightShadowAPI_ShadowColorAttr.Get()
+        assert_float_equal 1.0 lightShadowAPI_ShadowColor[1] message:(pointLight.name + " light shadow color value (R) should be at 1.0")
+        assert_float_equal 1.0 lightShadowAPI_ShadowColor[2] message:(pointLight.name + " light shadow color value (G) should be at 1.0")
+        assert_float_equal 1.0 lightShadowAPI_ShadowColor[3] message:(pointLight.name + " light shadow color value (B) should be at 1.0")
+    ),
+
+    function photometric_point_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local pointLight = free_light()
+        pointLight.type = #Free_Point
+        pointLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        local exportPath = output_prefix + "test_photometric_point_light_diffuse_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + pointLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(pointLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal 0.001 (lightRadiusAttr.Get()) message:(pointLight.name + " light radius should always be set to`'0.001'")
+
+        -- Now export when point light is using spherical light distribution
+        pointLight.distribution = 0
+
+        local exportPath = output_prefix + "test_photometric_point_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.SphereLight)) message:(pointLight.name + " light was not properly exported to a USD LuxSphereLight.")
+
+        usd_light = pyUsdLux.SphereLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal 0.001 (lightRadiusAttr.Get()) message:(pointLight.name + " light radius should always be set to`'0.001'")
+        lightTreatAsPointAttr = usd_light.GetTreatAsPointAttr()
+        assert_true (lightTreatAsPointAttr.Get()) message:(pointLight.name + " light should have its 'treatAsPoint' attribute active")
+
+        -- Now export when point light is using spot light distribution
+        pointLight.distribution = 1 -- spot
+
+        local exportPath = output_prefix + "test_photometric_point_light_spot_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(pointLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal 0.001 (lightRadiusAttr.Get()) message:(pointLight.name + " light radius should always be set to`'0.001'")
+
+        -- Now export when point light is using web light distribution
+        pointLight.distribution = 3 -- web/IES
+
+        local exportPath = output_prefix + "test_photometric_point_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(pointLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal 0.001 (lightRadiusAttr.Get()) message:(pointLight.name + " light radius should always be set to`'0.001'")
+    ),
+
+    function photometric_point_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local pointLight = free_light()
+        pointLight.type = #Free_Point
+        pointLight.distribution = 2 -- uniform hemispherical/diffuse
+        pointLight.useKelvin = true
+        pointLight.useMultiplier = true
+        
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move pointLight [0,0,10]
+            at time 10 pointLight.kelvin = 5600
+            -- when using color temperature, the filter color is the only attribute
+            -- the composes the USD light color
+            at time 10 pointLight.filterColor = color 155 155 155
+            at time 10 pointLight.multiplier = 50  -- dimming 50%; influence intensity
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_point_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + pointLight.name
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        local xformable = pyUsdGeom.Xformable(usd_light)
+        local lightRadiusAttr = usd_light.GetRadiusAttr()
+        local lightColorAttr = usd_light.GetColorAttr()
+        local lightColorTemperatureAttr = usd_light.GetColorTemperatureAttr()
+        local lightIntensityAttr = usd_light.GetIntensityAttr()
+        -- hardcoding expected value since the computation of the USD intensity is not easy
+        expectedIntensity = #(4616.2656,4343.5747,4012.4502,3652.109,3291.7673,2960.6433,2687.9521)
+
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode pointLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            assert_float_equal 0.001 (lightRadiusAttr.Get(timeCode)) message:(pointLight.name + " light radius should always be set to`'0.001'")
+
+            local c = at time timeCode pointLight.filterColor
+            local lightColorValue = lightColorAttr.Get(timeCode)
+            assert_float_equal (c.r/255.0) lightColorValue[1] message:"The light color value (R) should follow light filter color value"
+            assert_float_equal (c.g/255.0) lightColorValue[2] message:"The light color value (G) should follow light filter color value"
+            assert_float_equal (c.b/255.0) lightColorValue[3] message:"The light color value (B) should follow light filter color value"
+            
+            local k = at time timeCode pointLight.kelvin
+            assert_float_equal k (lightColorTemperatureAttr.Get(timeCode)) message:"The light color temperature value should follow animation settings"
+                
+            assert_float_equal expectedIntensity[timeCode-1] (lightIntensityAttr.Get(timeCode)) message:"The light intensity should follow dimmed value from animated light settings"
+        )
+    ),
+
+    function photometric_sphere_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local sphereLight = free_light()
+        sphereLight.type = #Free_Sphere
+        sphereLight.distribution = 0 -- uniform spherical
+
+        local exportPath = output_prefix + "test_photometric_sphere_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + sphereLight.name
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.SphereLight)) message:(sphereLight.name + " light was not properly exported to a USD LuxSphereLight.")
+
+        usd_light = pyUsdLux.SphereLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal sphereLight.radius (lightRadiusAttr.Get()) message:(sphereLight.name + " light radius is not as specified.")
+
+        -- Now export when point light is using web light distribution
+        sphereLight.distribution = 3 -- web/IES
+        sphereLight.radius = 10
+
+        local exportPath = output_prefix + "test_photometric_sphere_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.SphereLight)) message:(sphereLight.name + " light was not properly exported to a USD LuxSphereLight.")
+
+        usd_light = pyUsdLux.SphereLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal sphereLight.radius (lightRadiusAttr.Get()) message:(sphereLight.name + " light radius is not as specified.")
+    ),
+
+    function photometric_sphere_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local sphereLight = free_light()
+        sphereLight.type = #Free_Sphere
+        sphereLight.distribution = 0 -- uniform spherical
+
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move sphereLight [0,0,10]
+            at time 10 sphereLight.radius = 40
+            -- see point light animation export for general animatable attributs export
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_sphere_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + sphereLight.name
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.SphereLight)) message:(sphereLight.name + " light was not properly exported to a USD LuxSphereLight.")
+
+        usd_light = pyUsdLux.SphereLight.Get stage usd_light_path
+        
+        local xformable = pyUsdGeom.Xformable(usd_light)
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode sphereLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            local r = at time timeCode sphereLight.radius
+            assert_float_equal r (lightRadiusAttr.Get(timeCode)) message:(sphereLight.name + " light radius is not as specified.")
+        )
+    ),
+
+    function photometric_disk_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local diskLight = free_light()
+        diskLight.type = #Free_Disc
+        diskLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        local exportPath = output_prefix + "test_photometric_disk_light_diffuse_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + diskLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(diskLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal diskLight.radius (lightRadiusAttr.Get()) message:(diskLight.name + " light radius is not as specified.")
+
+        -- Now export when disk light is using spherical light distribution
+        diskLight.distribution = 0
+        diskLight.radius = 20
+
+        local exportPath = output_prefix + "test_photometric_disk_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.SphereLight)) message:(diskLight.name + " light was not properly exported to a USD LuxSphereLight.")
+
+        usd_light = pyUsdLux.SphereLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal diskLight.radius (lightRadiusAttr.Get()) message:(diskLight.name + " light radius is not as specified.")
+
+        -- Now export when disk light is using spot light distribution
+        diskLight.distribution = 1 -- spot
+
+        local exportPath = output_prefix + "test_photometric_disk_light_spot_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(diskLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal diskLight.radius (lightRadiusAttr.Get()) message:(diskLight.name + " light radius is not as specified.")
+
+        -- Now export when disk light is using web light distribution
+        diskLight.distribution = 3 -- web/IES
+
+        local exportPath = output_prefix + "test_photometric_disk_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(diskLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal diskLight.radius (lightRadiusAttr.Get()) message:(diskLight.name + " light radius is not as specified.")
+    ),
+
+    function photometric_disk_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local diskLight = free_light()
+        diskLight.type = #Free_Disc
+        diskLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move diskLight [0,0,10]
+            at time 10 diskLight.radius = 50
+            -- see point light animation export for general animatable attributs export
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_sphere_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + diskLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DiskLight)) message:(diskLight.name + " light was not properly exported to a USD LuxDiskLight.")
+
+        usd_light = pyUsdLux.DiskLight.Get stage usd_light_path
+
+        local xformable = pyUsdGeom.Xformable(usd_light)
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode diskLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            local r = at time timeCode diskLight.radius
+            assert_float_equal r (lightRadiusAttr.Get(timeCode)) message:(diskLight.name + " light radius is not as specified.")
+        )
+    ),
+
+    function photometric_line_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local lineLight = free_light()
+        lineLight.type = #Free_Line
+        lineLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        local exportPath = output_prefix + "test_photometric_line_light_diffuse_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + lineLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(lineLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal 0.1 (lightWidthAttr.Get()) message:(lineLight.name + " light width should always be set to`'0.1'")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal lineLight.length (lightHeightAttr.Get()) message:(lineLight.name + " light height is not as specified with 3ds Max light length.")
+
+        -- Now export when point light is using spherical light distribution
+        lineLight.distribution = 0
+        lineLight.length = 40  -- changing default length
+
+        local exportPath = output_prefix + "test_photometric_line_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        -- the cylinder light needs to be reoriented for USD
+        -- 3ds Max light main axis is the y-axis and USD expects it on the x-axis
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(lineLight.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(lineLight.name + " light needs its xform transfo.")
+
+        usd_light_path = "/" + lineLight.name + "/" + lineLight.name + "_Light"
+        objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.CylinderLight)) message:(lineLight.name + " light was not properly exported to a USD LuxCylinderLight.")
+
+        usd_light = pyUsdLux.CylinderLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal 0.001 (lightRadiusAttr.Get()) message:(lineLight.name + " light radius should always be set to`'0.001'")
+        lightTreatAsLineAttr = usd_light.GetTreatAsLineAttr()
+        assert_true (lightTreatAsLineAttr.Get()) message:(lineLight.name + " light should have its 'treatAsLine' attribute active")
+        lightLengthAttr = usd_light.GetLengthAttr()
+        assert_float_equal lineLight.length (lightLengthAttr.Get()) message:(lineLight.name + " light length is not as specified.")
+
+        -- Now export when point light is using spot light distribution
+        lineLight.distribution = 1 -- spot
+
+        local exportPath = output_prefix + "test_photometric_line_light_spot_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + lineLight.name
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(lineLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal 0.1 (lightWidthAttr.Get()) message:(lineLight.name + " light radius should always be set to`'0.001'")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal lineLight.length (lightHeightAttr.Get()) message:(lineLight.name + " light height is not as specified with 3ds Max light length.")
+
+        -- Now export when point light is using web light distribution
+        lineLight.distribution = 3 -- web/IES
+
+        local exportPath = output_prefix + "test_photometric_line_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(lineLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal 0.1 (lightWidthAttr.Get()) message:(lineLight.name + " light width should always be set to`'0.1'")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal lineLight.length (lightHeightAttr.Get()) message:(lineLight.name + " light height is not as specified with 3ds Max light length.")
+    ),
+
+    function photometric_line_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local lineLight = free_light()
+        lineLight.type = #Free_Line
+        lineLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move lineLight [0,0,10]
+            at time 10 lineLight.length = 120
+            -- see point light animation export for general animatable attributs export
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_line_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + lineLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(lineLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        local xformable = pyUsdGeom.Xformable(usd_light)
+        lightWidthAttr = usd_light.GetWidthAttr()
+        lightHeightAttr = usd_light.GetHeightAttr()
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode lineLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            assert_float_equal 0.1 (lightWidthAttr.Get(timeCode)) message:(lineLight.name + " light width should always be set to`'0.1'")
+            local l = at time timeCode lineLight.length
+            assert_float_equal l (lightHeightAttr.Get(timeCode)) message:(lineLight.name + " light height is not as specified with 3ds Max light length.")
+        )
+    ),
+
+    function photometric_cylinder_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local cylinderLight = free_light()
+        cylinderLight.type = #Free_Cylinder
+
+        cylinderLight.distribution = 0
+        cylinderLight.length = 40  -- changing default length
+
+        local exportPath = output_prefix + "test_photometric_cylinder_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local usd_light_path = "/" + cylinderLight.name
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        -- the cylinder light needs to be reoriented for USD
+        -- 3ds Max light main axis is the y-axis and USD expects it on the x-axis
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(cylinderLight.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(cylinderLight.name + " light needs its xform transfo.")
+
+        usd_light_path = "/" + cylinderLight.name + "/" + cylinderLight.name + "_Light"
+        objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.CylinderLight)) message:(cylinderLight.name + " light was not properly exported to a USD LuxCylinderLight.")
+
+        usd_light = pyUsdLux.CylinderLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal cylinderLight.radius (lightRadiusAttr.Get()) message:(cylinderLight.name + " light radius is not as specified.")
+        lightLengthAttr = usd_light.GetLengthAttr()
+        assert_float_equal cylinderLight.length (lightLengthAttr.Get()) message:(cylinderLight.name + " light length is not as specified.")
+
+        -- Now export when point light is using web light distribution
+        cylinderLight.distribution = 3 -- web/IES
+
+        local exportPath = output_prefix + "test_photometric_cylinder_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + cylinderLight.name
+        objPrim = stage.GetPrimAtPath usd_light_path
+        -- the cylinder light needs to be reoriented for USD
+        -- 3ds Max light main axis is the y-axis and USD expects it on the x-axis
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(cylinderLight.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(cylinderLight.name + " light needs its xform transfo.")
+
+        usd_light_path = "/" + cylinderLight.name + "/" + cylinderLight.name + "_Light"
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.CylinderLight)) message:(cylinderLight.name + " light was not properly exported to a USD LuxCylinderLight.")
+
+        usd_light = pyUsdLux.CylinderLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal cylinderLight.radius (lightRadiusAttr.Get()) message:(cylinderLight.name + " light radius is not as specified.")
+        lightLengthAttr = usd_light.GetLengthAttr()
+        assert_float_equal cylinderLight.length (lightLengthAttr.Get()) message:(cylinderLight.name + " light length is not as specified.")
+    ),
+
+    function photometric_cylinder_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local cylinderLight = free_light()
+        cylinderLight.type = #Free_Cylinder
+
+        cylinderLight.distribution = 0
+        cylinderLight.length = 40  -- changing default length
+
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move cylinderLight [0,0,10]
+            at time 10 rotate cylinderLight (eulerangles 0 0 45)
+            at time 10 cylinderLight.length = 100
+            at time 10 cylinderLight.radius = 15
+            -- see point light animation export for general animatable attributs export
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_cylinder_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local usd_light_path = "/" + cylinderLight.name
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        -- the cylinder light needs to be reoriented for USD
+        -- 3ds Max light main axis is the y-axis and USD expects it on the x-axis
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(cylinderLight.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(cylinderLight.name + " light needs its xform transfo.")
+        local xformable = pyUsdGeom.Xformable(objPrim)
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode cylinderLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+        )
+
+        usd_light_path = "/" + cylinderLight.name + "/" + cylinderLight.name + "_Light"
+        objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.CylinderLight)) message:(cylinderLight.name + " light was not properly exported to a USD LuxCylinderLight.")
+
+        usd_light = pyUsdLux.CylinderLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        lightLengthAttr = usd_light.GetLengthAttr()
+        for timeCode in rangeStart to rangeEnd do (
+            local r = at time timeCode cylinderLight.radius
+            assert_float_equal r (lightRadiusAttr.Get(timeCode)) message:(cylinderLight.name + " light radius is not as specified.")
+            local l = at time timeCode cylinderLight.length
+            assert_float_equal l (lightLengthAttr.Get(timeCode)) message:(cylinderLight.name + " light length is not as specified.")
+        )
+    ),
+
+    function photometric_rect_light_attributes_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local rectLight = free_light()
+        rectLight.type = #Free_Rectangle
+        rectLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        local exportPath = output_prefix + "test_photometric_rect_light_diffuse_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + rectLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(rectLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal rectLight.width (lightWidthAttr.Get()) message:(rectLight.name + " light width is not as specified.")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal rectLight.length (lightHeightAttr.Get()) message:(rectLight.name + " light height is not as specified.")
+
+        -- Now export when point light is using spherical light distribution
+        rectLight.distribution = 0
+        rectLight.length = 40  -- changing default length
+
+        local exportPath = output_prefix + "test_photometric_rect_light_spherical_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + rectLight.name
+        objPrim = stage.GetPrimAtPath usd_light_path
+        -- the cylinder light needs to be reoriented for USD
+        -- 3ds Max light main axis is the y-axis and USD expects it on the x-axis
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(rectLight.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(rectLight.name + " light needs its xform transfo.")
+
+        usd_light_path = "/" + rectLight.name + "/" + rectLight.name + "_Light"
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.CylinderLight)) message:(rectLight.name + " light was not properly exported to a USD LuxCylinderLight.")
+
+        usd_light = pyUsdLux.CylinderLight.Get stage usd_light_path
+        
+        lightRadiusAttr = usd_light.GetRadiusAttr()
+        assert_float_equal (rectLight.width / 2.0) (lightRadiusAttr.Get()) message:(rectLight.name + " light radius should be set to half the light width")
+        lightLengthAttr = usd_light.GetLengthAttr()
+        assert_float_equal rectLight.length (lightLengthAttr.Get()) message:(rectLight.name + " light length is not as specified.")
+
+        -- Now export when point light is using spot light distribution
+        rectLight.distribution = 1 -- spot
+
+        local exportPath = output_prefix + "test_photometric_rect_light_spot_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + rectLight.name
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(rectLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal rectLight.width (lightWidthAttr.Get()) message:(rectLight.name + " light width is not as specified.")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal rectLight.length (lightHeightAttr.Get()) message:(rectLight.name + " light height is not as specified.")
+
+        -- Now export when point light is using web light distribution
+        rectLight.distribution = 3 -- web/IES
+
+        local exportPath = output_prefix + "test_photometric_rect_light_web_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(rectLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        lightWidthAttr = usd_light.GetWidthAttr()
+        assert_float_equal rectLight.width (lightWidthAttr.Get()) message:(rectLight.name + " light width is not as specified.")
+        lightHeightAttr = usd_light.GetHeightAttr()
+        assert_float_equal rectLight.length (lightHeightAttr.Get()) message:(rectLight.name + " light height is not as specified.")
+    ),
+
+    function photometric_rect_light_attributes_animation_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local rectLight = free_light()
+        rectLight.type = #Free_Rectangle
+        rectLight.distribution = 2 -- uniform hemispherical/diffuse
+
+        with animate on 
+        (
+            -- Animate some attributes
+            at time 10 move rectLight [0,0,20]
+            at time 10 rotate rectLight (eulerangles 0 0 -45)
+            at time 10 rectLight.length = 100
+            at time 10 rectLight.width = 35
+            -- see point light animation export for general animatable attributs export
+        )
+        
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath = output_prefix + "test_photometric_rect_light_animationrange_export.usda"
+        exportOptions.TimeMode = #animationRange
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + rectLight.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.RectLight)) message:(rectLight.name + " light was not properly exported to a USD LuxRectLight.")
+
+        usd_light = pyUsdLux.RectLight.Get stage usd_light_path
+        
+        local xformable = pyUsdGeom.Xformable(usd_light)
+        lightWidthAttr = usd_light.GetWidthAttr()
+        lightHeightAttr = usd_light.GetHeightAttr()
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode rectLight.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The light's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            local w = at time timeCode rectLight.width
+            assert_float_equal w (lightWidthAttr.Get(timeCode)) message:(rectLight.name + " light width is not as specified.")
+            local l = at time timeCode rectLight.length
+            assert_float_equal l (lightHeightAttr.Get(timeCode)) message:(rectLight.name + " light height is not as specified.")
+        )
+    ),
+
+    function photometric_sun_positioner_export_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Lights = true
+
+        local sun_light = sun_positioner()
+
+        local exportPath = output_prefix + "test_photometric_sun_positioner_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        usd_light_path = "/" + sun_light.name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        -- the SunPositioner light needs to orient the prim's z-axis as the sun direction
+        -- the direction is given based on the instance position
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(sun_light.name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(sun_light.name + " light needs its xform transfo.")
+
+        usd_light_path = "/" + sun_light.name + "/" + sun_light.name + "_Light"
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DistantLight)) message:(sun_light.name + " light was not properly exported to a USD LuxDistantLight.")
+
+        -- by default, the environment map is not installed
+        local usd_light = pyUsdLux.DistantLight.Get stage usd_light_path
+        local lightColorAttr = usd_light.GetColorAttr()
+        assert_false (lightColorAttr.IsAuthored()) message:(sun_light.name + " light should not have its color set")
+        local lightIntensityAttr = usd_light.GetIntensityAttr()
+        assert_float_equal 50000.f (lightIntensityAttr.Get()) message:(sun_light.name + " light must have its intensity set to '50,000.f' (USD default)")
+            
+        -- note: unable to create a default environment map thru scripting
+        -- using a pre-configured file to have a proper test environment
+        resetmaxfile #noprompt
+        loadmaxfile ((getFilenamePath (getSourceFileName())) + "data\\" + "light-sun-envmap.max") useFileUnits:true
+        -- sun positioner entity name
+        light_name = "MySun"
+        -- light object orientation and position
+        -- rotx:-13.471  roty:-41.297  rotz:82.434  (Euler ZYX)
+        -- posx:-10  posy:10  posz:10
+        -- sun direction is almost oriented on the z-axis (world space)
+        local expectedTransform = (pyGf.Matrix4d 0.0989244  0.744752  0.659969  0  -0.943778  0.280452  -0.175015  0  -0.315432  -0.605551  0.730624  0 -10 10 10 1)
+
+        local exportPath = output_prefix + "test_photometric_sun_positioner_envmap_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+
+        usd_light_path = "/" + light_name
+
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        -- the SunPositioner light needs to orient the prim's z-axis as the sun direction
+        -- the direction is given based on the instance position
+        assert_true (pyUsd.Prim.IsValid(objPrim)) message:(light_name + " light was not properly exported to a USD prim.")
+        assert_true (objPrim.IsA(pyUsdGeom.Xform)) message:(light_name + " light needs its xform transfo.")
+        local xformable = pyUsdGeom.Xformable(objPrim)
+        local exportedTransform = xformable.GetLocalTransformation()
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4) message:"Incorrect sun transform."
+        
+        usd_light_path = "/" + light_name + "/" + light_name + "_Light"
+        
+        local objPrim = stage.GetPrimAtPath usd_light_path
+        assert_true (objPrim.IsA(pyUsdLux.DistantLight)) message:(light_name + " light was not properly exported to a USD LuxDistantLight.")
+        
+        local usd_light = pyUsdLux.DistantLight.Get stage usd_light_path
+        local lightColorAttr = usd_light.GetColorAttr()
+        assert_true (lightColorAttr.IsAuthored()) message:(light_name + " light should have its color set")
+        local lightIntensityAttr = usd_light.GetIntensityAttr()
+        assert_float_equal 3.f (lightIntensityAttr.Get()) message:(light_name + " light must have its intensity set to '3.f'")
+        local light_imageable = pyUsdGeom.Imageable (usd_light)
+        local expectedTransform = (pyGf.Matrix4d 0.280316078 0.94320776 -0.00018235648  0  -0.94320214988 0.2803153115  0.0032611217 0 0.0032298288407 -0.0007666744969 0.99999486414 0 -10 10 10 1)
+        local exportedWorldTransform = (light_imageable.ComputeLocalToWorldTransform(0))
+        assert_true(compare2dMatrix exportedWorldTransform expectedTransform 4 4) message:"Incorrect sun direction in world."
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        photometric_light_general_attributes_export_test,
+        photometric_point_light_attributes_export_test,
+        photometric_point_light_attributes_animation_export_test,
+        photometric_sphere_light_attributes_export_test,
+        photometric_sphere_light_attributes_animation_export_test,
+        photometric_disk_light_attributes_export_test,
+        photometric_disk_light_attributes_animation_export_test,
+        photometric_line_light_attributes_export_test,
+        photometric_line_light_attributes_animation_export_test,
+        photometric_cylinder_light_attributes_export_test,
+        photometric_cylinder_light_attributes_animation_export_test,
+        photometric_rect_light_attributes_export_test,
+        photometric_rect_light_attributes_animation_export_test,
+        photometric_sun_positioner_export_test
+    )
+)
+
+runUsdTestFixture export_light_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_case_switch_test.ms b/src/Tests/Integration/export_material_case_switch_test.ms
new file mode 100644
index 0000000..8acb97d
--- /dev/null
+++ b/src/Tests/Integration/export_material_case_switch_test.ms
@@ -0,0 +1,59 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct export_texture_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_usd_material_export_cases = 
+    (
+        python_test = python.import("export_material_case_switch_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_usd_material_export_cases
+    )
+)
+
+runUsdTestFixture export_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_case_switch_test.py b/src/Tests/Integration/export_material_case_switch_test.py
new file mode 100644
index 0000000..31822aa
--- /dev/null
+++ b/src/Tests/Integration/export_material_case_switch_test.py
@@ -0,0 +1,115 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import usd_material_writer
+import usd_material_reader
+import pymxs
+import sys
+import os
+import glob
+
+from pxr import Usd, UsdShade, Sdf
+import usd_test_helpers
+
+mxs = pymxs.runtime
+NOPROMPT = mxs.Name("noprompt")
+test_dir = os.path.dirname(__file__)
+
+
+class TestMaterialExportCases(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("EXPORT_MATERIAL_CASES_")
+        usd_test_helpers.load_usd_plugins()
+        mxs.resetMaxFile(NOPROMPT)
+
+    def test_roughness_cases(self):
+        """Test export of special cases for roughness"""
+        # create meshes
+        rough_inv_box = mxs.Box(name="box_roughness_inv")
+        pbrmetal_box = mxs.Box(name="box_pbrmetal")
+        pbrspec_box = mxs.Box(name="box_pbrspec")
+
+        # create material for mesh
+        rough_inv_box.material = mxs.PhysicalMaterial(name="roughness_inv_mat")
+        pbrmetal_box.material = mxs.PBRMetalRough(name="pbrmetal_gloss_mat")
+        pbrspec_box.material = mxs.PBRSpecGloss(name="pbrspec_rough_mat")
+
+        # set material settings
+        USE_ROUGHNESS = 2
+        USE_GLOSINESS = 1
+        roughness_val = 0.333
+        rough_inv_box.material.roughness_inv = True
+        rough_inv_box.material.roughness = roughness_val
+        pbrmetal_box.material.useGlossiness = USE_GLOSINESS
+        pbrmetal_box.material.roughness = roughness_val
+        pbrspec_box.material.useGlossiness = USE_ROUGHNESS # default is glosiness
+        pbrspec_box.material.glossiness = roughness_val
+
+        # export
+        test_usd_file_path = self.output_prefix + "test_roughness_inv.usda"
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[rough_inv_box,pbrmetal_box,pbrspec_box],
+        )
+        msg = test_usd_file_path
+        self.assertTrue(ret)
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/roughness_inv_mat/roughness_inv_mat"
+        usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+        self.assertIsInstance(usd_mat_shader, UsdShade.Shader)
+        roughness_input = usd_mat_shader.GetInput("roughness")
+        self.assertTrue(roughness_input)
+        self.assertAlmostEqual(roughness_input.Get(), 1 - roughness_val, msg=msg)
+
+        usd_test_helpers.check_expected_usd_mat_value(
+            self,
+            stage,
+            "/mtl/pbrmetal_gloss_mat/pbrmetal_gloss_mat",
+            "roughness",
+            1 - roughness_val,
+        )
+        usd_test_helpers.check_expected_usd_mat_value(
+            self,
+            stage,
+            "/mtl/pbrspec_rough_mat/pbrspec_rough_mat",
+            "roughness",
+            roughness_val,
+        )
+
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(
+        unittest.TestLoader().loadTestsFromTestCase(TestMaterialExportCases)
+    )
+
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    reload(usd_material_writer)
+    reload(usd_material_reader)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_id_test.ms b/src/Tests/Integration/export_material_id_test.ms
new file mode 100644
index 0000000..5cc43ef
--- /dev/null
+++ b/src/Tests/Integration/export_material_id_test.ms
@@ -0,0 +1,101 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyShade = python.import("pxr.UsdShade")
+pyVt = python.import("pxr.Vt")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_MATERIAL_ID_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_material_id_test
+(
+    private
+    exportOptions = USDExporter.CreateOptions(),
+
+    public
+    function setup =
+    (
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        resetmaxfile #noprompt
+    ),
+    
+    function test_export_material_id = (
+        -- Populate the scene
+        Box pos:[0,0,0] width:10 length:10 height:10 name:"Box"
+        convertto $Box editable_poly
+        numFaces = (getNumFaces $Box)
+        for i = 1 to numFaces do
+        (
+            facelist = #(i)
+            polyop.SetFaceMatID $Box facelist i
+        )
+            
+        -- export file
+        exportPath = (output_prefix + "export_mat_test_id.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- validate exported data
+        local stage = pyUsd.Stage.Open(exportPath)
+        local exportedBoxPrim = stage.GetPrimAtPath("/Box")
+        local bindingAPI = pyShade.MaterialBindingAPI(exportedBoxPrim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        assert_equal subsets.count 6
+        for i = 1 to 6 do
+        (
+            subset = subsets[i]
+            att = subset.GetIndicesAttr()
+            indices = att.Get()
+            assert_equal indices.count 1
+            assert_equal indices[0] (i - 1)
+            assert_equal i ((subset.GetPrim()).GetCustomDataByKey "3dsmax:matId") message:"The Max matId should have been written to CustomData."
+        )
+    ),
+    
+    function test_export_material_with_only_one_id = (
+        -- Populate the scene
+        myBox = Box pos:[0,0,0] width:10 length:10 height:10 name:"Box"
+        convertto myBox editable_poly
+        numFaces = (getNumFaces $Box)
+        polyop.SetFaceMatID $Box #(1,2,3,4,5,6) 3
+  
+        -- export file
+        exportPath = (output_prefix + "export_mat_test_only_one_id.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        -- validate exported data doesn't have material bind subset
+        local stage = pyUsd.Stage.Open(exportPath)
+        local exportedBoxPrim = stage.GetPrimAtPath("/Box")
+        local bindingAPI = pyShade.MaterialBindingAPI(exportedBoxPrim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        
+        assert_equal subsets.count 0
+        assert_equal 3 (exportedBoxPrim.GetCustomDataByKey "3dsmax:matId") message:"The 3ds Max matId should have been written to CustomData."
+    ),
+    function teardown = (
+    ),
+
+    tests = #(test_export_material_id, test_export_material_with_only_one_id)
+)
+
+runUsdTestFixture export_material_id_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_opacity_test.ms b/src/Tests/Integration/export_material_opacity_test.ms
new file mode 100644
index 0000000..7109c4f
--- /dev/null
+++ b/src/Tests/Integration/export_material_opacity_test.ms
@@ -0,0 +1,60 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct export_texture_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_usd_material_export_opacity = 
+    (
+        python_test = python.import("export_material_opacity_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_usd_material_export_opacity
+    )
+)
+
+runUsdTestFixture export_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_opacity_test.py b/src/Tests/Integration/export_material_opacity_test.py
new file mode 100644
index 0000000..29c7bb2
--- /dev/null
+++ b/src/Tests/Integration/export_material_opacity_test.py
@@ -0,0 +1,133 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import usd_material_writer
+import usd_material_reader
+import pymxs
+import sys
+import os
+import glob
+
+from pxr import Usd
+import usd_test_helpers
+
+mxs = pymxs.runtime
+NOPROMPT = mxs.Name("noprompt")
+test_dir = os.path.dirname(__file__)
+
+
+class TestMaterialOpacity(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TestMaterialOpacity_")
+        usd_test_helpers.load_usd_plugins()
+        mxs.resetMaxFile(NOPROMPT)
+
+
+    def test_opacity_physical_mat(self):
+        """Test opacity for physcial mat works as expected."""
+        test_usd_file_path = self.output_prefix + "test_opacity_physical_mat.usda"
+        mxs.loadMaxFile(os.path.join(test_dir, "data", "phy-mat-leaf-cutout.max"), quiet=True)
+        
+        # create meshes
+        test_node = mxs.getNodeByName("phy-mat-leaf001")
+        test_node_trans = mxs.getNodeByName("phy-mat-trans")
+        # create material for mesh        
+        # set material settings
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_node, test_node_trans],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/phys_cutout_mat/phys_cutout_mat"
+        usd_test_helpers.check_expected_usd_mat_value(self, stage, usd_mat_path, "opacityThreshold", 0.5)
+
+        trans_mat_path = "/mtl/phys_transparent_mat/phys_transparent_mat"
+        usd_test_helpers.check_expected_usd_mat_value(self, stage, trans_mat_path, "opacityThreshold", None)
+
+
+class TestMaterialTransparency(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TestMaterialTransparency_")
+
+        mxs.resetMaxFile(NOPROMPT)
+        usd_test_helpers.load_usd_plugins()
+
+    def test_opacity_physical_mat(self):
+        """Test opacity for physcial mat works as expected."""
+        test_usd_file_path = self.output_prefix + "phys_transparency_mat.usda"
+        
+        # create meshes
+        test_trans = mxs.Box(name="phys_trans_cube")
+        # create material for mesh
+        mat_name = "physical_trans_mat"
+        test_trans.material = mxs.PhysicalMaterial(name=mat_name)
+        # set material settings
+        transparency_value = 0.9
+        test_trans.material.transparency = transparency_value
+        
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_trans],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = f"/mtl/{mat_name}/{mat_name}"
+        usd_test_helpers.check_expected_usd_mat_value(self, stage, usd_mat_path, "opacity", 1 - transparency_value)
+
+
+
+def run_tests():
+    test_cases = (TestMaterialOpacity, TestMaterialTransparency)
+    test_runner = unittest.TextTestRunner(stream=sys.stdout, verbosity=2)
+    suite = unittest.TestSuite()
+    for test_class in test_cases:
+        tests = unittest.defaultTestLoader.loadTestsFromTestCase(test_class)
+        suite.addTests(tests)
+    
+    return test_runner.run(suite)
+
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    reload(usd_material_writer)
+    reload(usd_material_reader)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
+    
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_switcher_test.ms b/src/Tests/Integration/export_material_switcher_test.ms
new file mode 100644
index 0000000..65ab01a
--- /dev/null
+++ b/src/Tests/Integration/export_material_switcher_test.ms
@@ -0,0 +1,69 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct export_texture_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_usd_material_switcher_export = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import export_material_switcher_test"
+        python.Execute "reload(export_material_switcher_test)"
+
+        maxver = maxversion()
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            -- Run tests.
+            python_test = python.import("export_material_switcher_test")
+            results = python_test.run_tests()
+
+            processPythonUnittestResults results
+		)
+    ), 
+
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_usd_material_switcher_export
+    )
+)
+
+runUsdTestFixture export_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_switcher_test.py b/src/Tests/Integration/export_material_switcher_test.py
new file mode 100644
index 0000000..cbbc9b7
--- /dev/null
+++ b/src/Tests/Integration/export_material_switcher_test.py
@@ -0,0 +1,699 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import usd_material_writer
+import usd_material_reader
+import pymxs
+import sys
+import os
+import glob
+
+from pxr import Usd, UsdShade
+import usd_test_helpers
+
+mxs = pymxs.runtime
+NOPROMPT = mxs.Name("noprompt")
+test_dir = os.path.dirname(__file__)
+
+
+class TestMaterialSwitcher(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TestMaterialSwitcher_")
+
+        mxs.resetMaxFile(NOPROMPT)
+        usd_test_helpers.load_usd_plugins()
+
+        # create meshes
+        self.test_trans = mxs.Box(name="cube")
+        # create material for mesh
+        self.materialSwitcherName = "MaterialSwitcherName"
+        self.test_trans.material = mxs.Material_Switcher()
+        self.test_trans.material.name = self.materialSwitcherName
+        self.test_trans.material.materialList[0] = mxs.PhysicalMaterial()
+        self.test_trans.material.materialList[0].name = "MaterialName1"
+        self.test_trans.material.names[0] = "Material1"
+        self.test_trans.material.materialList[1] = mxs.PhysicalMaterial()
+        self.test_trans.material.materialList[1].name = "MaterialName2"
+        self.test_trans.material.names[1] = "Material2"
+
+    def test_as_variant_sets_material_export_style(self):
+        """Test material switcher export as variant sets"""
+        test_usd_file_path = self.output_prefix + "asVariantSets_mat.usda"
+        
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[self.test_trans],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        cubePrim = stage.GetPrimAtPath("/cube")
+        self.assertTrue(Usd.Prim.IsValid(cubePrim))
+
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + self.test_trans.material.name
+        materialName1Path = materialRootPath + "/" + self.test_trans.material.materialList[0].name
+        materialName2Path = materialRootPath + "/" + self.test_trans.material.materialList[1].name
+
+        self.assertTrue(UsdShade.MaterialBindingAPI(cubePrim).GetDirectBindingRel().HasAuthoredTargets())
+        bindingTargets = UsdShade.MaterialBindingAPI(cubePrim).GetDirectBindingRel().GetTargets()
+        self.assertEqual(1, len(bindingTargets))
+        self.assertEqual(materialSwitcherNamePath, bindingTargets[0])
+
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertTrue(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+        materialVariantSet = mtlSwitcherPrim.GetVariantSets().GetVariantSet("shadingVariant")
+        
+        materialVariantSetNames = materialVariantSet.GetVariantNames()
+        self.assertEqual(2, len(materialVariantSetNames))
+        self.assertEqual(self.test_trans.material.materialList[0].name, materialVariantSetNames[0])
+        self.assertEqual(self.test_trans.material.materialList[1].name, materialVariantSetNames[1])        
+        activeMaterial = self.test_trans.material.GetActiveMaterial()
+        self.assertEqual(activeMaterial.name, materialVariantSet.GetVariantSelection())
+        
+        # all materials are exported
+        materialRootPrim = stage.GetPrimAtPath(materialRootPath)
+        materialRootChildren = materialRootPrim.GetChildren()
+        self.assertEqual(3, len(materialRootChildren))
+        self.assertEqual(materialSwitcherNamePath, materialRootChildren[0].GetPath())
+        self.assertEqual(materialName1Path, materialRootChildren[1].GetPath())
+        self.assertEqual(materialName2Path, materialRootChildren[2].GetPath())
+
+    def test_active_material_export_style(self):
+        """Test material switcher export active material"""
+        test_usd_file_path = self.output_prefix + "active_mat.usda"
+        
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("activeMaterial")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[self.test_trans],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        cubePrim = stage.GetPrimAtPath("/cube")
+        self.assertTrue(Usd.Prim.IsValid(cubePrim))
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + self.test_trans.material.name
+        materialName1Path = materialRootPath + "/" + self.test_trans.material.materialList[0].name
+        materialName2Path = materialRootPath + "/" + self.test_trans.material.materialList[1].name
+
+        self.assertTrue(UsdShade.MaterialBindingAPI(cubePrim).GetDirectBindingRel().HasAuthoredTargets())
+        bindingTargets = UsdShade.MaterialBindingAPI(cubePrim).GetDirectBindingRel().GetTargets()
+        self.assertEqual(1, len(bindingTargets))
+        self.assertEqual(materialSwitcherNamePath, bindingTargets[0])
+        
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertFalse(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        # only active material is exported with the MtlSwitcher material
+        materialRootPrim = stage.GetPrimAtPath(materialRootPath)
+        materialRootChildren = materialRootPrim.GetChildren()
+        self.assertEqual(2, len(materialRootChildren))
+        self.assertEqual(materialSwitcherNamePath, materialRootChildren[0].GetPath())
+        self.assertEqual(materialName1Path, materialRootChildren[1].GetPath())
+        
+    def test_as_variant_sets_material_export_style_with_one_material_switch(self):
+        """Test material switcher export as variant sets when only one material switch is defined"""
+        test_usd_file_path = self.output_prefix + "asVariantSetsOneMaterialSwitch_mat.usda"
+
+        mxs.delete(self.test_trans)
+        # create meshes
+        test_sphere = mxs.Sphere(name="sphere")
+        # create material for mesh
+        materialSwitcherSingleMatName = "MaterialSwitcherSingleMatName"
+        test_sphere.material = mxs.Material_Switcher()
+        test_sphere.material.name = self.materialSwitcherName
+        test_sphere.material.materialList[0] = mxs.PhysicalMaterial()
+        test_sphere.material.materialList[0].name = "MaterialName1"
+        test_sphere.material.names[0] = "MaterialSingle"
+
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        spherePrim = stage.GetPrimAtPath("/sphere")
+        self.assertTrue(Usd.Prim.IsValid(spherePrim))
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_sphere.material.name
+        materialName1Path = materialRootPath + "/" + test_sphere.material.materialList[0].name
+
+        self.assertTrue(UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().HasAuthoredTargets())
+        bindingTargets = UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().GetTargets()
+        self.assertEqual(1, len(bindingTargets))
+        self.assertEqual(materialSwitcherNamePath, bindingTargets[0])
+        
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertFalse(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        # only active material is exported with the MtlSwitcher material
+        materialRootPrim = stage.GetPrimAtPath(materialRootPath)
+        materialRootChildren = materialRootPrim.GetChildren()
+        self.assertEqual(2, len(materialRootChildren))
+        self.assertEqual(materialSwitcherNamePath, materialRootChildren[0].GetPath())
+        self.assertEqual(materialName1Path, materialRootChildren[1].GetPath())
+
+    def test_as_variant_sets_material_export_style_with_no_material_switch(self):
+        """Test material switcher export as variant sets when no material switch is defined"""
+        test_usd_file_path = self.output_prefix + "asVariantSetsNoMaterialSwitch_mat.usda"
+
+        mxs.delete(self.test_trans)
+        # create meshes
+        test_sphere = mxs.Sphere(name="sphere")
+        # create material for mesh
+        materialSwitcherNoMatName = "MaterialSwitcherNoMatName"
+        test_sphere.material = mxs.Material_Switcher()
+        test_sphere.material.name = self.materialSwitcherName
+
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        spherePrim = stage.GetPrimAtPath("/sphere")
+        self.assertTrue(Usd.Prim.IsValid(spherePrim))
+
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_sphere.material.name
+
+        self.assertFalse(UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().HasAuthoredTargets())
+        
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertFalse(Usd.Prim.IsValid(mtlSwitcherPrim))
+        
+        # no material exported
+        materialRootPath = export_options.RootPrimPath + "/" + export_options.MaterialPrimPath
+        materialRootPrim = stage.GetPrimAtPath(materialRootPath)
+        self.assertFalse(materialRootPrim.IsValid())
+
+    def test_as_variant_sets_material_export_style_with_two_material_targets(self):
+        """Test material switcher export as variant sets when only one material switch is defined, with two material targets"""
+        test_usd_file_path = self.output_prefix + "asVariantSetsTwoMaterialTargets_mat.usda"
+
+        mxs.delete(self.test_trans)
+        # create meshe
+        test_sphere = mxs.Sphere(name="sphere")
+        # create materials for mesh
+        test_sphere.material = mxs.Material_Switcher()
+        test_sphere.material.name = self.materialSwitcherName
+        test_sphere.material.materialList[0] = mxs.MaterialXMaterial()
+        test_sphere.material.materialList[0].name = "MaterialName1"
+        test_sphere.material.names[0] = "Material1"
+        test_sphere.material.materialList[1] = mxs.MaterialXMaterial()
+        test_sphere.material.materialList[1].name = "MaterialName2"
+        test_sphere.material.names[1] = "Material2"
+
+        # Load a materialX doc into the Materials.
+        mtlxDoc = os.path.dirname(os.path.abspath(__file__)) + "\\data\\Iberian_Blue_Ceramic_Tiles_1k_8b\\Iberian_Blue_Ceramic_Tiles.mtlx"
+        test_sphere.material.materialList[0].importMaterial(mtlxDoc)
+        test_sphere.material.materialList[1].importMaterial(mtlxDoc)
+
+        # export
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        materialTargets = mxs.Array("UsdPreviewSurface", "MaterialX")
+        export_options.AllMaterialTargets = materialTargets
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=mxs.Name("nodeList"),
+            nodeList=[test_sphere],
+        )
+        self.assertTrue(ret)
+
+        # test
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        spherePrim = stage.GetPrimAtPath("/sphere")
+        self.assertTrue(Usd.Prim.IsValid(spherePrim))
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_sphere.material.name
+        materialName1Path = materialRootPath + "/" + test_sphere.material.materialList[0].name
+        materialName2Path = materialRootPath + "/" + test_sphere.material.materialList[1].name
+
+        self.assertTrue(UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().HasAuthoredTargets())
+        bindingTargets = UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().GetTargets()
+        self.assertEqual(1, len(bindingTargets))
+        self.assertEqual(materialSwitcherNamePath, bindingTargets[0])
+        
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertTrue(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        materialVariantSet = mtlSwitcherPrim.GetVariantSets().GetVariantSet("shadingVariant")
+        materialVariantSetNames = materialVariantSet.GetVariantNames()
+        self.assertEqual(2, len(materialVariantSetNames))
+        self.assertEqual(test_sphere.material.materialList[0].name, materialVariantSetNames[0])
+        self.assertEqual(test_sphere.material.materialList[1].name, materialVariantSetNames[1])        
+        activeMaterial = test_sphere.material.GetActiveMaterial()
+        self.assertEqual(activeMaterial.name, materialVariantSet.GetVariantSelection())
+
+        materialRootPrim = stage.GetPrimAtPath(materialRootPath)
+        materialRootChildren = materialRootPrim.GetChildren()
+        self.assertEqual(3, len(materialRootChildren))
+        self.assertEqual(materialSwitcherNamePath, materialRootChildren[0].GetPath())
+        self.assertEqual(materialName1Path, materialRootChildren[1].GetPath())
+        self.assertEqual(materialName2Path, materialRootChildren[2].GetPath())
+
+        # Validate that Material1 was properly exported
+        # MaterialX UsdShade node graph
+        mtlxTargetPrim = stage.GetPrimAtPath(materialName1Path + "/" + "MaterialX")
+        self.assertTrue(mtlxTargetPrim.IsValid())
+        # UsdPreviewSurface UsdShade node graph
+        uspsTargetPrim = stage.GetPrimAtPath(materialName1Path + "/" + "UsdPreviewSurface")
+        self.assertTrue(uspsTargetPrim.IsValid())
+
+        # Validate that Material2 was properly exported
+        # MaterialX UsdShade node graph
+        mtlxTargetPrim = stage.GetPrimAtPath(materialName2Path + "/" + "MaterialX")
+        self.assertTrue(mtlxTargetPrim.IsValid())
+        # UsdPreviewSurface UsdShade node graph
+        uspsTargetPrim = stage.GetPrimAtPath(materialName2Path + "/" + "UsdPreviewSurface")
+        self.assertTrue(uspsTargetPrim.IsValid())
+    
+    def test_active_material_with_multisub(self):
+        """Test material switcher export active material when a multi/sub-object material is the active material"""
+        test_usd_file_path = self.output_prefix + "activeMaterialWithMultisub.usda"
+
+        mxs.delete(self.test_trans)
+        
+        # create mesh
+        #box has 6 mat IDs [1-6]
+        test_box = mxs.Box(name="box")
+        
+        multiMat = mxs.Multimaterial()
+        multiMat.name = "MultiMat"
+        multiMat.numsubs = 3
+        switcherMat = mxs.Material_Switcher()
+        switcherMat.name = "Switcher"
+        physMatOne = mxs.PhysicalMaterial()
+        physMatOne.name = "Material1"
+        physMatTwo = mxs.PhysicalMaterial()
+        physMatTwo.name = "Material2"
+        physMatThree = mxs.PhysicalMaterial()
+        physMatThree.name = "Material3"
+        
+        #leave [0] empty on purpose
+        multiMat.materialList[0] = mxs.undefined
+        multiMat.materialList[1] = physMatOne
+        multiMat.materialList[2] = physMatTwo
+        switcherMat.materialList[0] = multiMat
+        switcherMat.materialList[1] = physMatThree
+        
+        test_box.mat = switcherMat
+        
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("activeMaterial")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options
+        )
+        self.assertTrue(ret)
+        
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_box.material.name
+        materialName1Path = materialRootPath + "/" + test_box.material.materialList[0].materialList[1].name
+        materialName2Path = materialRootPath + "/" + test_box.material.materialList[0].materialList[2].name
+        materialName3Path = materialRootPath + "/" + test_box.material.materialList[1].name
+        
+        boxPrim = stage.GetPrimAtPath("/box")
+        self.assertTrue(Usd.Prim.IsValid(boxPrim))
+        children = boxPrim.GetChildren()
+        id = 1
+        for child in children:
+            if child.GetTypeName() == "GeomSubset" :
+                bindingTargets = UsdShade.MaterialBindingAPI(child).GetDirectBindingRel().GetTargets()
+                self.assertEqual(1, len(bindingTargets))
+                refMat = stage.GetPrimAtPath(bindingTargets[0]).GetChildren()
+                if (id % 3) == 1:
+                    self.assertEqual([], refMat)
+                if (id % 3) == 2:
+                    self.assertEqual("Material1", refMat[0].GetName())
+                if (id % 3) == 0:
+                    self.assertEqual("Material2", refMat[0].GetName())
+                id = id + 1
+                
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertFalse(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+        
+        #make sure that physMatTwo was exported
+        physMatTwoPrim = stage.GetPrimAtPath(materialName2Path)
+        self.assertTrue(Usd.Prim.IsValid(physMatTwoPrim))
+        
+        #make sure that physMatThree was NOT exported
+        physMatThreePrim = stage.GetPrimAtPath(materialName3Path)
+        self.assertFalse(Usd.Prim.IsValid(physMatThreePrim))
+    
+    def test_variant_set_with_multisub(self):
+        """Test material switcher export as variant sets when a multi/sub-object material is one of the variants"""
+        test_usd_file_path = self.output_prefix + "variantSetWithMultisub.usda"
+        
+        mxs.delete(self.test_trans)
+        
+        # create meshes
+        #box has 6 mat IDs [1-6]
+        test_box = mxs.Box(name="box")
+        #sphere has only 1 mat ID: 2
+        test_sphere = mxs.Sphere(name="sphere")
+        
+        multiMat = mxs.Multimaterial()
+        multiMat.name = "MultiMat"
+        multiMat.numsubs = 3
+        switcherMat = mxs.Material_Switcher()
+        switcherMat.name = "Switcher"
+        physMatOne = mxs.PhysicalMaterial()
+        physMatOne.name = "Material1"
+        physMatTwo = mxs.PhysicalMaterial()
+        physMatTwo.name = "Material2"
+        
+        #leave [0] empty on purpose
+        multiMat.materialList[0] = mxs.undefined
+        multiMat.materialList[1] = physMatOne
+        multiMat.materialList[2] = physMatTwo
+        switcherMat.materialList[0] = multiMat
+        switcherMat.materialList[1] = physMatOne
+        
+        test_box.mat = switcherMat
+        test_sphere.mat = switcherMat
+        
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options
+        )
+        self.assertTrue(ret)
+        
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_sphere.material.name
+        materialName1Path = materialRootPath + "/" + test_sphere.material.materialList[0].materialList[1].name
+        materialName2Path = materialRootPath + "/" + test_sphere.material.materialList[0].materialList[2].name
+
+        spherePrim = stage.GetPrimAtPath("/sphere")
+        self.assertTrue(Usd.Prim.IsValid(spherePrim))
+        self.assertTrue(UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().HasAuthoredTargets())
+        bindingTargets = UsdShade.MaterialBindingAPI(spherePrim).GetDirectBindingRel().GetTargets()
+        self.assertEqual(1, len(bindingTargets))
+        refMat = stage.GetPrimAtPath(bindingTargets[0]).GetChildren()
+        self.assertEqual("Material1", refMat[0].GetName())
+        
+        boxPrim = stage.GetPrimAtPath("/box")
+        self.assertTrue(Usd.Prim.IsValid(boxPrim))
+        children = boxPrim.GetChildren()
+        id = 1
+        for child in children:
+            if child.GetTypeName() == "GeomSubset" :
+                bindingTargets = UsdShade.MaterialBindingAPI(child).GetDirectBindingRel().GetTargets()
+                self.assertEqual(1, len(bindingTargets))
+                refMat = stage.GetPrimAtPath(bindingTargets[0]).GetChildren()
+                if (id % 3) == 1:
+                    self.assertEqual([], refMat)
+                if (id % 3) == 2:
+                    self.assertEqual("Material1", refMat[0].GetName())
+                if (id % 3) == 0:
+                    self.assertEqual("Material2", refMat[0].GetName())
+                id = id + 1
+                
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertTrue(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        materialVariantSet = mtlSwitcherPrim.GetVariantSets().GetVariantSet("shadingVariant")
+        materialVariantSetNames = materialVariantSet.GetVariantNames()
+        self.assertEqual(2, len(materialVariantSetNames))
+        self.assertEqual("Material1", materialVariantSetNames[0])
+        self.assertEqual("MultiMat", materialVariantSetNames[1])
+        activeMaterial = test_sphere.material.GetActiveMaterial()
+        self.assertEqual(activeMaterial.name, materialVariantSet.GetVariantSelection())
+        
+        #make sure that physMatTwo was exported
+        physMatTwoPrim = stage.GetPrimAtPath(materialName2Path)
+        self.assertTrue(Usd.Prim.IsValid(physMatTwoPrim))
+        
+    def test_variant_set_with_multisub_and_switcher(self):
+        """Test material switcher export as variant sets when a multi/sub-object material is one of the variants, which itself has a Material Switcher"""
+        test_usd_file_path = self.output_prefix + "variantSetWithMultisubAndSwitcher.usda"
+        
+        mxs.delete(self.test_trans)
+        
+        # create meshes
+        #box has 6 mat IDs [1-6]
+        test_box = mxs.Box(name="box")
+        
+        multiMat = mxs.Multimaterial()
+        multiMat.name = "MultiMat"
+        multiMat.numsubs = 3
+        switcherMat = mxs.Material_Switcher()
+        switcherMat.name = "Switcher"
+        nestedSwitcherMat = mxs.Material_Switcher()
+        nestedSwitcherMat.name = "NestedSwitcher"
+        physMatOne = mxs.PhysicalMaterial()
+        physMatOne.name = "Material1"
+        physMatTwo = mxs.PhysicalMaterial()
+        physMatTwo.name = "Material2"
+        physMatThree = mxs.PhysicalMaterial()
+        physMatThree.name = "Material3"
+        physMatFour = mxs.PhysicalMaterial()
+        physMatFour.name = "Material4"
+        
+        test_box.mat = switcherMat
+        
+        switcherMat.materialList[0] = multiMat
+        switcherMat.materialList[1] = physMatOne
+        #leave [0] empty on purpose
+        multiMat.materialList[0] = mxs.undefined
+        multiMat.materialList[1] = nestedSwitcherMat
+        multiMat.materialList[2] = physMatTwo
+        nestedSwitcherMat.materialList[0] = physMatThree
+        nestedSwitcherMat.materialList[1] = physMatFour 
+        
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options
+        )
+        self.assertTrue(ret)
+        
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + test_box.material.name
+        nestedSwitcherMatPath = materialRootPath + "/" + nestedSwitcherMat.name
+        materialName1Path = materialRootPath + "/" + physMatOne.name
+        materialName2Path = materialRootPath + "/" + physMatTwo.name
+        materialName3Path = materialRootPath + "/" + physMatThree.name
+        materialName4Path = materialRootPath + "/" + physMatFour.name
+        
+        boxPrim = stage.GetPrimAtPath("/box")
+        self.assertTrue(Usd.Prim.IsValid(boxPrim))
+        children = boxPrim.GetChildren()
+        id = 1
+        for child in children:
+            if child.GetTypeName() == "GeomSubset" :
+                bindingTargets = UsdShade.MaterialBindingAPI(child).GetDirectBindingRel().GetTargets()
+                self.assertEqual(1, len(bindingTargets))
+                refMat = stage.GetPrimAtPath(bindingTargets[0]).GetChildren()
+                if (id % 3) == 1:
+                    self.assertEqual([], refMat)
+                if (id % 3) == 2:
+                    # Material 3 is the active material in the Nested Switcher
+                    self.assertEqual("Material3", refMat[0].GetName())
+                if (id % 3) == 0:
+                    self.assertEqual("Material2", refMat[0].GetName())
+                id = id + 1
+        
+        # Validate the Switcher assigned to the box
+        mtlSwitcherPrim = stage.GetPrimAtPath(materialSwitcherNamePath)
+        self.assertTrue(Usd.Prim.IsValid(mtlSwitcherPrim))
+        self.assertTrue(mtlSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        materialVariantSet = mtlSwitcherPrim.GetVariantSets().GetVariantSet("shadingVariant")
+        materialVariantSetNames = materialVariantSet.GetVariantNames()
+        self.assertEqual(2, len(materialVariantSetNames))
+        self.assertEqual(physMatOne.name, materialVariantSetNames[0])
+        self.assertEqual(multiMat.name, materialVariantSetNames[1])
+        activeMaterial = test_box.material.GetActiveMaterial()
+        self.assertEqual(activeMaterial.name, materialVariantSet.GetVariantSelection())
+        
+        # Make sure that all other physical materials were exported
+        physMatTwoPrim = stage.GetPrimAtPath(materialName2Path)
+        self.assertTrue(Usd.Prim.IsValid(physMatTwoPrim))
+        physMatThreePrim = stage.GetPrimAtPath(materialName3Path)
+        self.assertTrue(Usd.Prim.IsValid(physMatThreePrim))
+        physMatFourPrim = stage.GetPrimAtPath(materialName4Path)
+        self.assertTrue(Usd.Prim.IsValid(physMatFourPrim))
+        
+        # Now inspect the NestedSwitcher
+        NestedSwitcherPrim = stage.GetPrimAtPath(nestedSwitcherMatPath)
+        self.assertTrue(Usd.Prim.IsValid(NestedSwitcherPrim))
+        self.assertTrue(NestedSwitcherPrim.GetVariantSets().HasVariantSet("shadingVariant"))
+
+        materialVariantSet = NestedSwitcherPrim.GetVariantSets().GetVariantSet("shadingVariant")
+        materialVariantSetNames = materialVariantSet.GetVariantNames()
+        self.assertEqual(2, len(materialVariantSetNames))
+        self.assertEqual(physMatThree.name, materialVariantSetNames[0])
+        self.assertEqual(physMatFour.name, materialVariantSetNames[1])
+        activeMaterial = nestedSwitcherMat.GetActiveMaterial()
+        self.assertEqual(activeMaterial.name, materialVariantSet.GetVariantSelection())
+
+    def test_variant_set_with_multisub_instanced_obj(self):
+        """Test material switcher export as variant sets when a multi/sub-object material assigned to an instanced object"""
+        test_usd_file_path = self.output_prefix + "variantSetWithMultisubInstanced.usda"
+        
+        mxs.delete(self.test_trans)
+        
+        # create mesh
+        #box has 6 mat IDs [1-6]
+        test_box = mxs.Box(name="originalBox")
+        
+        multiMat = mxs.Multimaterial()
+        multiMat.name = "MultiMat"
+        multiMat.numsubs = 2
+        switcherMat = mxs.Material_Switcher()
+        switcherMat.name = "Switcher"
+        physMatOne = mxs.PhysicalMaterial()
+        physMatOne.name = "Material1"
+        physMatTwo = mxs.PhysicalMaterial()
+        physMatTwo.name = "Material2"
+        
+        multiMat.materialList[0] = physMatOne
+        multiMat.materialList[1] = physMatTwo
+        switcherMat.materialList[0] = multiMat
+        switcherMat.materialList[1] = physMatOne
+        
+        test_box.mat = physMatOne
+        
+        instanced_box = mxs.Instance(test_box)
+        instanced_box.mat = switcherMat
+        instanced_box.name = "instancedBox"
+        
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.MtlSwitcherExportStyle = mxs.Name("asVariantSets")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options
+        )
+        self.assertTrue(ret)
+        
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        materialRootPath = export_options.RootPrimPath + export_options.MaterialPrimPath
+        materialSwitcherNamePath = materialRootPath + "/" + instanced_box.material.name
+        materialName1Path = materialRootPath + "/" + instanced_box.material.materialList[0].materialList[0].name
+        materialName2Path = materialRootPath + "/" + instanced_box.material.materialList[0].materialList[1].name
+        
+        instancedBoxPrim = stage.GetPrimAtPath("/instancedBox")
+        self.assertTrue(Usd.Prim.IsValid(instancedBoxPrim))
+        #Instancing should've been broken because geomSubsets are being "over"ed
+        self.assertFalse(instancedBoxPrim.IsInstance())
+        children = instancedBoxPrim.GetChildren()
+        id = 1
+        for child in children:
+            if child.GetTypeName() == "GeomSubset" :
+                bindingTargets = UsdShade.MaterialBindingAPI(child).GetDirectBindingRel().GetTargets()
+                self.assertEqual(1, len(bindingTargets))
+                refMat = stage.GetPrimAtPath(bindingTargets[0]).GetChildren()
+                if (id % 2) == 1:
+                    self.assertEqual("Material1", refMat[0].GetName())
+                if (id % 2) == 0:
+                    self.assertEqual("Material2", refMat[0].GetName())
+                switcherPlaceHolderPrim = stage.GetPrimAtPath(materialSwitcherNamePath + "/Switcher_Set_1_MatID_" + id)
+                self.assertTrue(Usd.Prim.IsValid(switcherPlaceHolderPrim))
+                id = id + 1
+        
+        
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestMaterialSwitcher))
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    reload(usd_material_writer)
+    reload(usd_material_reader)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
+    
\ No newline at end of file
diff --git a/src/Tests/Integration/export_material_test.ms b/src/Tests/Integration/export_material_test.ms
new file mode 100644
index 0000000..f20214b
--- /dev/null
+++ b/src/Tests/Integration/export_material_test.ms
@@ -0,0 +1,1543 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyShade = python.import("pxr.UsdShade")
+pysdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+
+-- Reload the material export module for convenience in development.
+python.Execute "from importlib import reload"
+python.Execute "import usd_material_writer"
+python.Execute "reload(usd_material_writer)"
+python.Execute "import shaderWriter"
+python.Execute "reload(shaderWriter)"    
+pyUsdMaterialWriter = python.import("usd_material_writer")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_MATERIAL_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_material_test
+(  
+    private 
+    originalFileFormatOption,
+    exportMaterialTestOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportMaterialTestOptions.FileFormat = #ascii
+        exportMaterialTestOptions.RootPrimPath = "/"
+        exportMaterialTestOptions.Materials = true
+        pyUsdMaterialWriter._material_export_options["relative_texture_paths"] = false
+    ),
+    
+    function validate_multiMtl_binding &stage &prim expectedNumberOfSubset =
+    (
+        local bindingAPI = pyShade.MaterialBindingAPI(prim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        assert_equal expectedNumberOfSubset subsets.count
+        
+        for i = 1 to expectedNumberOfSubset do
+        (
+            local subset1BindingAPI = pyShade.MaterialBindingAPI(subsets[i])
+            local mtlBindingRel = subset1BindingAPI.GetDirectBindingRel()
+            local bindingTargets = mtlBindingRel.GetTargets()
+            assert_equal bindingTargets.count 1
+            local mtlPrim = stage.GetPrimAtPath(bindingTargets[1])
+            assert_true (pyUsd.Prim.IsValid(mtlPrim))
+        )
+    ),
+    
+    function validate_simple_bindings &stage &prim = (
+        local bindingAPI = pyShade.MaterialBindingAPI(prim)
+        local mtlBindingRel = bindingAPI.GetDirectBindingRel()
+        local bindingTargets = mtlBindingRel.GetTargets()
+        assert_equal bindingTargets.count 1
+        local mtlPrim = stage.GetPrimAtPath(bindingTargets[1])
+        assert_true (pyUsd.Prim.IsValid(mtlPrim))
+    ),
+    
+    function get_bound_material_name &stage &prim  = (
+        local bindingAPI = pyShade.MaterialBindingAPI(prim)
+        local mtlBindingRel = bindingAPI.GetDirectBindingRel()
+        local bindingTargets = mtlBindingRel.GetTargets()
+        local mtlPrim = stage.GetPrimAtPath(bindingTargets[1])
+        return mtlPrim.GetName()
+    ),
+    
+    function test_export_multi_material_bindings = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local multiMtl = multimaterial numsubs:6
+        
+        box001.material = multiMtl
+        
+        local exportPath = output_prefix + "export_multi_material_should_have_bindings.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001")
+        
+        validate_multiMtl_binding stage boxPrim 6
+    ),
+
+    function test_export_multi_material_bindings_with_exported_object_transform = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local multiMtl = multimaterial numsubs:6
+        box001.objectOffsetPos = [1,1,1]
+        box001.material = multiMtl
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.BakeObjectOffsetTransform = false
+        exportOptions.Materials = true
+
+        local exportPath = output_prefix + "export_multi_material_bindings_with_exported_object_transform.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001/box001_Shape")
+        
+        validate_multiMtl_binding stage boxPrim 6
+    ),
+    
+    function test_export_multi_material_only_one_matid_used = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        convertto box001 editable_poly
+        numFaces = (getNumFaces box001)
+        polyop.SetFaceMatID box001 #(1,2,3,4,5,6) 3
+        
+        local multiMtl = multimaterial numsubs:6
+        multiMtl.materialList[3].name = "mtl3"
+
+        box001.material = multiMtl
+        
+        local exportPath = output_prefix + "export_multi_material_only_one_matid_used.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001")
+        
+        validate_simple_bindings stage boxPrim
+    ),
+    
+    function test_export_single_material_bindings = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = Physical_Material name:"mtl1"
+        
+        box001.material = physicalMtl
+        
+        local exportPath = output_prefix + "export_single_material_bindings.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001")
+        
+        validate_simple_bindings stage boxPrim
+    ),
+    
+    function test_export_hierarchy_material_bindings = (
+        local box1 = Box pos:[0,0,0] name:"box1"
+        local box2 = Box pos:[0,0,0] name:"box2"
+        box2.parent = box1
+        local box3 = Box pos:[0,0,0] name:"box3"
+        box3.parent = box2
+        
+        local materialA = Physical_Material name:"A"
+        local materialB = Physical_Material name:"B"
+        local materialC = Physical_Material name:"C"
+        
+        box1.material = materialA
+        box2.material = materialB
+        box3.material = materialC
+        local exportPath = output_prefix + "test_export_hierarchy_material_bindings_alpha.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box1/box1_Shape")
+        local box2Prim = stage.GetPrimAtPath("/box1/box2/box2_Shape")
+        local box3Prim = stage.GetPrimAtPath("/box1/box2/box3")
+        assert_equal "A" (get_bound_material_name stage box1Prim)
+        assert_equal "B" (get_bound_material_name stage box2Prim)
+        assert_equal "C" (get_bound_material_name stage box3Prim)
+        
+        -- Test with different binding (we had an issue with the order in which 
+        -- material were processed, caused problems).
+        
+        box1.material = materialC
+        box2.material = materialB
+        box3.material = materialA
+        
+        local exportPath = output_prefix + "test_export_hierarchy_material_bindings_rev_alpha.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box1/box1_Shape")
+        local box2Prim = stage.GetPrimAtPath("/box1/box2/box2_Shape")
+        local box3Prim = stage.GetPrimAtPath("/box1/box2/box3")
+        assert_equal "C" (get_bound_material_name stage box1Prim)
+        assert_equal "B" (get_bound_material_name stage box2Prim)
+        assert_equal "A" (get_bound_material_name stage box3Prim)
+        
+    ),
+    
+
+    function test_export_single_material_bindings_with_exported_object_transform = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = Physical_Material name:"mtl1"
+        box001.objectOffsetPos = [1,1,1]
+        box001.material = physicalMtl
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.BakeObjectOffsetTransform = false
+        exportOptions.Materials = true
+        
+        local exportPath = output_prefix + "export_single_material_bindings_with_exported_object_transform.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001/box001_Shape")
+        
+        validate_simple_bindings stage boxPrim
+    ),
+    
+    function test_export_multi_material_missing_slots = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local multiMtl = multimaterial numsubs:6
+        
+        multiMtl.materialList[1].name = "mtl1"
+        multiMtl.materialList[2].name = "mtl2"
+        multiMtl.materialList[3] = undefined
+        multiMtl.materialList[4].name = "mtl4"
+        multiMtl.materialList[5].name = "mtl5"
+        multiMtl.materialList[6].name = "mtl6"
+        
+        box001.material = multiMtl
+        
+        local exportPath = output_prefix + "export_multi_material_missing_slots.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001")
+        
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        assert_equal subsets.count 6
+    
+        for i = 1 to 6 do
+        (
+            local subset1BindingAPI = pyShade.MaterialBindingAPI(subsets[i])
+            local mtlBindingRel = subset1BindingAPI.GetDirectBindingRel()
+            local bindingTargets = mtlBindingRel.GetTargets()
+            if i == 3 then 
+            (
+                assert_equal bindingTargets.count 0
+            )
+            else
+            (
+                assert_equal bindingTargets.count 1
+                local mtlPrim = stage.GetPrimAtPath(bindingTargets[1])
+                assert_true (pyUsd.Prim.IsValid(mtlPrim))
+            )
+        )
+    ),
+    
+    function test_export_multi_material_unused_mtlId = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local multiMtl = multimaterial numsubs:10
+        
+        multiMtl.materialList[1].name = "mtl1"
+        multiMtl.materialList[2].name = "mtl2"
+        multiMtl.materialList[3].name = "mtl2"
+        multiMtl.materialList[4].name = "mtl4"
+        multiMtl.materialList[5].name = "mtl5"
+        multiMtl.materialList[6].name = "mtl6"
+        
+        box001.material = multiMtl
+        
+        local exportPath = output_prefix + "export_multi_material_unused_mtlId.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/box001")
+        
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        validate_multiMtl_binding stage boxPrim 6
+    ),
+    
+    function test_export_material_on_instances_with_different_materials = (
+        -- box001 will not have any material assigned
+        local box001 = Box pos:[0,0,0] name:"box001"
+        
+        -- box002 will have a physical material assigned
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+        newNodes[1].material = PhysicalMaterial()
+        
+        -- box003 will have a multi material assigned
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box003"
+        newNodes[1].material = multimaterial numsubs:6
+
+        local exportPath = output_prefix + "export_material_on_instances_with_different_materials.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box001")
+        local box2Prim = stage.GetPrimAtPath("/box002")
+        local box3Prim = stage.GetPrimAtPath("/box003")
+        
+        -- Only box 3 should have broken instancing
+        assert_true (box1Prim.IsInstance())
+        assert_true (box2Prim.IsInstance())
+        assert_false (box3Prim.IsInstance())
+        
+        -- validate box 1 has no bindings
+        local bindingAPI = pyShade.MaterialBindingAPI(box1Prim)
+        local mtlBindingRel = bindingAPI.GetDirectBindingRel()
+        local bindingTargets = mtlBindingRel.GetTargets()
+        assert_equal bindingTargets.count 0
+            
+        -- validate box 2 binding on the instance prim
+        validate_simple_bindings stage box2Prim
+            
+        -- Validate box 3 binding for multimaterial
+        local box3PrimChild = stage.GetPrimAtPath("/box003/box001")
+        validate_multiMtl_binding stage box3PrimChild 6
+    ),
+    
+    function test_export_material_on_instances_with_different_materials_when_only_one_matId_used = (
+        -- box001 will not have any material assigned
+        local box001 = Box pos:[0,0,0] name:"box001"
+        convertto box001 editable_poly
+        numFaces = (getNumFaces box001)
+        polyop.SetFaceMatID box001 #(1,2,3,4,5,6) 3
+        
+        -- box002 will have a physical material assigned
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+        newNodes[1].material = PhysicalMaterial()
+        
+        -- box003 will have a multi material assigned
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box003"
+        newNodes[1].material = multimaterial numsubs:6
+
+        local exportPath = output_prefix + "export_material_on_instances_with_different_materials_only_one_matId_used.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box001")
+        local box2Prim = stage.GetPrimAtPath("/box002")
+        local box3Prim = stage.GetPrimAtPath("/box003")
+        
+        -- No box should have broken instancing
+        assert_true (box1Prim.IsInstance())
+        assert_true (box2Prim.IsInstance())
+        assert_true (box3Prim.IsInstance())
+        
+        -- validate box 1 has no bindings
+        local bindingAPI = pyShade.MaterialBindingAPI(box1Prim)
+        local mtlBindingRel = bindingAPI.GetDirectBindingRel()
+        local bindingTargets = mtlBindingRel.GetTargets()
+        assert_equal bindingTargets.count 0
+            
+        -- validate box 2 binding on the instance prim
+        validate_simple_bindings stage box2Prim
+            
+        -- Validate box 3 binding on the instance prim
+        validate_simple_bindings stage box3Prim
+    ),
+    
+    function test_export_multi_material_on_instances_with_same_material = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        multiMtl = multimaterial numsubs:6
+        box001.material = multiMtl
+        
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+
+        local exportPath = output_prefix + "export_multi_material_on_instances_with_same_material.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box001")
+        local box2Prim = stage.GetPrimAtPath("/box002")
+        
+        assert_true (box1Prim.IsInstance())
+        assert_true (box2Prim.IsInstance())
+            
+        local box1PrimChild = stage.GetPrimAtPath("/box001/box001")
+        local box2PrimChild = stage.GetPrimAtPath("/box002/box001")
+            
+        validate_multiMtl_binding stage box1PrimChild 6
+        validate_multiMtl_binding stage box2PrimChild 6
+    ),
+    
+    function test_export_simple_material_on_instances_with_same_material = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        multiMtl = PhysicalMaterial()
+        box001.material = multiMtl
+        
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+
+        local exportPath = output_prefix + "export_simple_material_on_instances_with_same_material.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box001")
+        local box2Prim = stage.GetPrimAtPath("/box002")
+        
+        assert_true (box1Prim.IsInstance())
+        assert_true (box2Prim.IsInstance())
+            
+        local box1ChildPrim = stage.GetPrimAtPath("/box001/box001")
+        local box2ChildPrim = stage.GetPrimAtPath("/box002/box001")
+            
+        validate_simple_bindings stage box1ChildPrim
+        validate_simple_bindings stage box2ChildPrim
+    ),
+    
+    function test_export_material_on_single_selected_instance = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        multiMtl = PhysicalMaterial()
+        box001.material = multiMtl
+        
+        maxOps.cloneNodes #(box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+
+        local exportPath = output_prefix + "export_material_on_single_selected_instance.usda"
+        select $box002
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions contentSource:#selected
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box2Prim = stage.GetPrimAtPath("/box002")
+        
+        -- Single Max instance not exported as a USD instance.
+        assert_false (box2Prim.IsInstance())
+        local box2 = stage.GetPrimAtPath("/box002")
+        validate_simple_bindings stage box2
+    ),
+    
+    function test_export_instance_with_object_transform = (
+        Box pos:[0,0,0] name:"box001"
+        MaxOps.cloneNodes #($box001) cloneType:#instance actualNodeList:&list newNodes:&newNodes
+        newNodes[1].name = "box002"
+        
+        $box001.material = PhysicalMaterial()
+        $box002.material = multimaterial numsubs:6
+        
+        $box001.objectOffsetPos = [1,1,1]
+        $box002.objectOffsetPos = [1,1,1]
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.BakeObjectOffsetTransform = false
+        exportOptions.Materials = true
+        
+        local exportPath = output_prefix + "export_instance_with_object_transform.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local box1Prim = stage.GetPrimAtPath("/box001/box001_Shape")
+        local box2Prim = stage.GetPrimAtPath("/box002/box002_Shape/box001")
+
+        validate_simple_bindings stage box1Prim
+        validate_multiMtl_binding stage box2Prim 6
+    ),
+    
+    function test_export_physical_material_values = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"usdPhysTestMtl"
+        box001.material = physicalMtl
+        
+        setupValuesOnPhysMtl physicalMtl
+        
+        local exportPath = output_prefix + "export_physical_material_values.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/usdPhysTestMtl/usdPhysTestMtl"
+        
+        validateValueOnPhysMtl shaderPrim
+    ),
+    
+    function test_export_previewsurface_material_values = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local mtl = MaxUsdPreviewSurface()
+        mtl.name = "usdTestMtl"
+        box001.material = mtl
+        
+        setupValuesOnPreviewSurfaceMtl mtl
+        
+        local exportPath = output_prefix + "export_usdPreviewSurface_material_values.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/usdTestMtl/usdTestMtl"
+        
+        validateValueOnPreviewSurfaceMtl shaderPrim
+    ),    
+    
+    function pathToForwardSlash path = (
+        return (substituteString path @"\" @"/")
+    ),
+    
+    function getTexturePrim connectedSource = (
+        local rgbOutput = (connectedSource).GetOutput("rgb")
+        local valProducingAttr = (rgbOutput.GetValueProducingAttributes())[1]
+        return pyShade.Shader((valProducingAttr).GetPrim())
+    ),
+    
+    function test_export_physical_material_bitmap_maps = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"usdPhysMapTestMtl"
+        box001.material = physicalMtl
+        
+        local baseColorBitmapPath = @"C:\folderX\basecolor.png"
+        local emitColorBitmapPath = @"C:\emitcolor.png"
+        local displacementBitmapPath = @"D:\displacement.jpg"
+        local roughnessBitmapPath = @"T:\roughness"
+        local metalnessBitmapPath = @"c:\metalness.png"
+        local coatingBitmapPath = @"E:\coating.tiff"
+        local coatRoughnessBitmapPath = @"C:\roughness.png"
+        local bumpBitmapPath = @"C:\bump.jpg"
+        local iorBitmapPath = @"C:\ior.png"
+        local cutoutBitmapPath = @"\\somedrive\cutout.jpg"
+        
+        physicalMtl.base_color_map = Bitmaptexture fileName:baseColorBitmapPath
+        physicalMtl.emission_map = Bitmaptexture fileName:emitColorBitmapPath
+        physicalMtl.displacement_map = Bitmaptexture fileName:displacementBitmapPath
+        physicalMtl.roughness_map = Bitmaptexture fileName:roughnessBitmapPath
+        physicalMtl.metalness_map = Bitmaptexture fileName:metalnessBitmapPath
+        physicalMtl.coat_map = Bitmaptexture fileName:coatingBitmapPath
+        physicalMtl.coat_rough_map = Bitmaptexture fileName:coatRoughnessBitmapPath        
+        -- bump maps will be skipped unless going through a normal bump node!
+        physicalMtl.bump_map = Normal_Bump()
+        physicalMtl.bump_map.normal_map = Bitmaptexture fileName:bumpBitmapPath
+        physicalMtl.trans_ior_map = Bitmaptexture fileName:iorBitmapPath
+        physicalMtl.cutout_map = Bitmaptexture fileName:cutoutBitmapPath
+        
+        local exportPath = output_prefix + "export_physical_material_bitmap_maps_on.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/usdPhysMapTestMtl/usdPhysMapTestMtl"
+        
+        assert_true ((shaderPrim.GetInput("diffuseColor")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("emissiveColor")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("displacement")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("opacity")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("roughness")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("metallic")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("clearcoat")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("clearcoatRoughness")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("normal")).HasConnectedSource())
+        assert_true ((shaderPrim.GetInput("ior")).HasConnectedSource())
+            
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath)+ "@") inputFile
+            
+        connectedSourceTuple = ((shaderPrim.GetInput("emissiveColor")).GetConnectedSource())
+        texturePrim= getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash emitColorBitmapPath) + "@") inputFile
+            
+        connectedSourceTuple = ((shaderPrim.GetInput("displacement")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash displacementBitmapPath) + "@") inputFile     
+        
+        connectedSourceTuple = ((shaderPrim.GetInput("opacity")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        -- Note : pathlib.as_posix(), used to convert paths to forward slashes, adds a trailing "/" on UNC paths,
+        -- it still resolves ok to that file on windows.
+        assert_equal ("@" + (pathToForwardSlash cutoutBitmapPath) + "/" + "@") inputFile
+            
+        connectedSourceTuple = ((shaderPrim.GetInput("roughness")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash roughnessBitmapPath) + "@") inputFile
+        
+        connectedSourceTuple = ((shaderPrim.GetInput("metallic")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash metalnessBitmapPath) + "@") inputFile
+            
+        connectedSourceTuple = ((shaderPrim.GetInput("clearcoat")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash coatingBitmapPath) + "@") inputFile
+        
+        connectedSourceTuple = ((shaderPrim.GetInput("clearcoatRoughness")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash coatRoughnessBitmapPath) + "@") inputFile
+            
+        connectedSourceTuple = ((shaderPrim.GetInput("normal")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash bumpBitmapPath) + "@") inputFile
+
+        connectedSourceTuple = ((shaderPrim.GetInput("ior")).GetConnectedSource())
+        texturePrim = getTexturePrim (connectedSourceTuple[1])
+        inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash iorBitmapPath) + "@") inputFile
+            
+        physicalMtl.base_color_map_on = false
+        physicalMtl.emission_map_on = false
+        physicalMtl.displacement_map_on = false
+        physicalMtl.transparency_map_on = false
+        physicalMtl.roughness_map_on = false
+        physicalMtl.metalness_map_on = false
+        physicalMtl.coat_map_on = false
+        physicalMtl.coat_rough_map_on = false
+        physicalMtl.bump_map_on = false
+        physicalMtl.trans_ior_map_on = false
+        physicalMtl.cutout_map = undefined -- Remove cutout, otherwise the transparency value is not used.
+            
+        setupValuesOnPhysMtl physicalMtl
+            
+        exportPath = output_prefix + "export_physical_material_bitmap_maps_off.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+
+        local stageMapOff = pyUsd.Stage.Open(exportPath)
+        shaderPrim = pyShade.Shader.Get stageMapOff "/mtl/usdPhysMapTestMtl/usdPhysMapTestMtl"
+        
+        validateValueOnPhysMtl shaderPrim
+    ),
+    
+    function create_osl_multi_channel osl_texture channelIndex = (
+        multiChannelMap = MultiOutputChannelTexmapToTexmap()
+        multiChannelMap.sourceMap = osl_texture
+        multiChannelMap.outputChannelIndex = channelIndex
+        return multiChannelMap
+    ),
+    
+    function test_multi_channel_texture_material_connections = (
+                
+        -- Channel indices
+        -- rgb: 1
+        -- r  : 2
+        -- g  : 3
+        -- b  : 4
+        -- a  : 5
+        
+        oslTexture = OSLMap()
+        oslTexture.name = "Dummy"
+        max_root = symbolicPaths.getPathValue("$max")
+
+        maxver = maxversion()
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            oslTexture.OSLPath = (max_root + "/OSL/UberBitmap2.osl")
+        ) else (
+            oslTexture.OSLPath = (max_root + "/OSL/UberBitmap.osl")
+        )
+        oslTexture.OSLAutoUpdate = True
+        
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local uv_checker_png = (scriptDir + @"data\uv_checker.png")
+        
+        oslTexture.filename = uv_checker_png
+        
+        box1 = convertToPoly (Box())
+        polyop.defaultMapFaces box1 1
+            
+        usdpsMaterial = MaxUsdPreviewSurface()
+
+        usdpsMaterial.diffuseColor_map = create_osl_multi_channel oslTexture  1 -- rgb
+        usdpsMaterial.metallic_map = create_osl_multi_channel oslTexture 2 -- r
+        usdpsMaterial.roughness_map = create_osl_multi_channel oslTexture 3 -- g 
+        usdpsMaterial.displacement_map = create_osl_multi_channel oslTexture 4 -- b
+        usdpsMaterial.opacity_map = create_osl_multi_channel oslTexture 5 -- a
+        
+        box1.material = usdpsMaterial
+            
+        exportPath = output_prefix + "test_multi_channel_texture_material_connections.usda"
+                
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions        
+        
+        -- usdchecker should flag this file valid
+        assert_true (check_usd_file_valid exportPath)
+            
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/MaxUsdPreviewSurface/MaxUsdPreviewSurface"
+        
+        -- Connected the diffuse color to the rgb output of the bitmap.
+        local diffuseSource = ((shaderPrim.GetInput("diffuseColor")).GetRawConnectedSourcePaths())[1]
+        assert_equal "/mtl/MaxUsdPreviewSurface/Dummy.outputs:rgb" (diffuseSource as string)
+        
+        -- Connected the metalness to the r output of the bitmap.
+        local metallicSource  = ((shaderPrim.GetInput("metallic")).GetRawConnectedSourcePaths())[1]
+        assert_equal "/mtl/MaxUsdPreviewSurface/Dummy.outputs:r" (metallicSource as string)
+        
+        -- Connected the roughness to the g output of the bitmap.
+        local roughnessSource = ((shaderPrim.GetInput("roughness")).GetRawConnectedSourcePaths())[1]
+        assert_equal "/mtl/MaxUsdPreviewSurface/Dummy.outputs:g" (roughnessSource as string)
+        
+        -- Connected the displacement to the 'b' output of the bitmap.
+        local displacementSource = ((shaderPrim.GetInput("displacement")).GetRawConnectedSourcePaths())[1]
+        assert_equal "/mtl/MaxUsdPreviewSurface/Dummy.outputs:b" (displacementSource as string)
+        
+        -- Connected the opacity to the 'a' output of the bitmap.
+        local opacitySource = ((shaderPrim.GetInput("opacity")).GetRawConnectedSourcePaths())[1]
+        assert_equal "/mtl/MaxUsdPreviewSurface/Dummy.outputs:a" (opacitySource as string)
+    ),
+    
+    -- We had a defect where some data was not cleared between exports, causing problems if the same materials were being 
+    -- exported more than once. This tests 
+    function test_consecutive_material_export = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"usdPhysMapTestMtl"
+        box001.material = physicalMtl
+        
+        local baseColorBitmapPath = @"C:\folderX\basecolor.png"
+        physicalMtl.base_color_map = Bitmaptexture fileName:baseColorBitmapPath
+        
+        local exportPath = output_prefix + "test_consecutive_material_export.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local textureNode = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl/Bitmaptexture/Bitmaptexture")
+        assert_true (textureNode.IsValid())
+        assert_true (textureNode.IsA(pyShade.Shader)) 
+        local primvarReaderNode = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl/Bitmaptexture/PrimvarReader_st")
+        assert_true (primvarReaderNode.IsValid())
+        assert_true (primvarReaderNode.IsA(pyShade.Shader))
+            
+        local exportPath = output_prefix + "test_consecutive_material_export_1.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        -- Prior to the fix, we had missing shader nodes on the second export.
+        local stage = pyUsd.Stage.Open(exportPath)
+        local textureNode = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl/Bitmaptexture/Bitmaptexture")
+        assert_true (textureNode.IsValid())
+        assert_true (textureNode.IsA(pyShade.Shader)) 
+        local primvarReaderNode = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl/Bitmaptexture/PrimvarReader_st")
+        assert_true (primvarReaderNode.IsValid())
+        assert_true (primvarReaderNode.IsA(pyShade.Shader))
+    ),
+    
+    -- Tests that a texture map which is used by two different material is only exported once.
+    function test_shared_texture_map = (
+        -- Create two boxes and two materials.
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"usdPhysMapTestMtl"
+        box001.material = physicalMtl
+        
+        local box002 = Box pos:[0,0,20] name:"box002"
+        local physicalMtl2 = PhysicalMaterial name:"usdPhysMapTestMtl2"
+        box002.material = physicalMtl2
+        
+        -- Assign the same BitmapTexture to both materials..
+        local baseColorBitmapPath = @"C:\folderX\basecolor.png"
+        local texMap = Bitmaptexture fileName:baseColorBitmapPath
+        physicalMtl.base_color_map = texMap
+        physicalMtl2.base_color_map = texMap
+        
+        local exportPath = output_prefix + "test_shared_texture_map.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportMaterialTestOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local materials = stage.GetPrimAtPath("/mtl")
+        -- Should only have 3 prims under material. One for each material + one for the map.
+        assert_equal 3 ((materials.GetAllChildren()).Count)
+        
+        local mat1 = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl")
+        assert_true (mat1.IsValid())
+        assert_true (mat1.IsA(pyShade.Material))
+        local mat2 = stage.GetPrimAtPath("/mtl/usdPhysMapTestMtl2")
+        assert_true (mat2.IsValid())
+        assert_true (mat2.IsA(pyShade.Material))
+        local textureNode = stage.GetPrimAtPath("/mtl/Bitmaptexture")
+        assert_true (textureNode.IsValid())
+        assert_true (textureNode.IsA(pyShade.NodeGraph))
+    ),
+    
+    function test_export_unknown_material_to_dummy = (
+        -- Create a box with a material unknown to our shader writers.        
+        local theBox = Box()
+        local adskMtl = AutodeskMaterial()
+        -- Setup the color, it is the only thing that will carry over to UsdPreviewSurface.
+        adskMtl.generic_color  = color 255 0 0
+        theBox.material = adskMtl
+                
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+        
+        local exportPath = output_prefix + "test_export_unknown_material_to_dummy.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- We should have generated a material, with the diffuse color assigned, as fallback.
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/Autodesk_Material/Autodesk_Material"
+        assert_equal ((pyGf.Vec3f 1 0 0) as string) (((shaderPrim.GetInput("diffuseColor")).Get()) as string)
+        
+        -- If materials are disabled, no dummy material generated.
+        expOptions.materials = false
+        local exportPath = output_prefix + "test_export_unknown_material_to_dummy_materials_disabled.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = stage.GetPrimAtPath("/mtl/Autodesk_Material/Autodesk_Material")
+        assert_false (shaderPrim.IsValid())
+            
+        -- If materials are enabled, but UsdPreviewSurface is not a target, no dummmy material generated.
+        expOptions.materials = true
+        expOptions.AllMaterialTargets = #()
+        local exportPath = output_prefix + "test_export_unknown_material_to_dummy_usdps_disabled.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = stage.GetPrimAtPath("/mtl/Autodesk_Material/Autodesk_Material")
+        assert_false (shaderPrim.IsValid())            
+    ),
+    
+    -- Test making sure that materials name conflicts are properly handled, material names
+    -- do not need to be unique on the 3dsMax side, but paths must be unique on the USD side.
+    function test_material_name_conflict = (
+        
+        local box1 = Box name:"box1"
+        local box2 = Box name:"box2"
+        local box3 = Box name:"box3"
+        
+        local mat1 = PhysicalMaterial name:"conflict"
+        mat1.base_color = (color 255 0 0)
+        local mat2 = PhysicalMaterial name:"conflict"
+        mat2.base_color = (color 0 255 0)
+        local mat3 = PhysicalMaterial name:"conflict"
+        mat3.base_color = (color 0 0 255)
+        
+        box1.material = mat1
+        box2.material = mat2
+        box3.material = mat3
+        
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+        local exportPath = output_prefix + "test_material_name_conflict.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+
+        local box1Prim = stage.GetPrimAtPath("/box1")
+        assert_true (box1Prim.IsValid())
+            
+        local boundMaterial = (((pyShade.MaterialBindingAPI(box1Prim)).GetDirectBindingRel()).GetTargets())[0]
+        assert_equal "/mtl/conflict" (boundMaterial as string)
+            
+        local box2Prim = stage.GetPrimAtPath("/box2")
+        assert_true (box2Prim.IsValid())
+        local boundMaterial2 = (((pyShade.MaterialBindingAPI(box2Prim)).GetDirectBindingRel()).GetTargets())[0]
+        assert_equal "/mtl/conflict1" (boundMaterial2 as string)
+    
+        local box3Prim = stage.GetPrimAtPath("/box3")
+        assert_true (box3Prim.IsValid())
+        local boundMaterial3 = (((pyShade.MaterialBindingAPI(box3Prim)).GetDirectBindingRel()).GetTargets())[0]
+        assert_equal "/mtl/conflict2" (boundMaterial3 as string)
+    ),    
+    
+    -- Test material ID "overflow" behavior. For example if a mesh has a face with material
+    -- ID 3, but the assigned multi-sub only has 2 slots, the face should use the material 
+    -- id : matId = (faceMaterialId % maxSlot) = 1
+    function test_export_multimaterial_ids_overflow = (
+        local theBox = Box name:"box"
+        
+        -- Create a multimaterial, 2 slots, 2 phys materials.
+        local multiSub = multiSubMaterial numsubs:2
+        multiSub.numSubs = 2
+        local mat1 = PhysicalMaterial()
+        mat1.base_color = (color 255 0 0)
+        multiSub.materialList[1] = mat1
+        local mat2 = PhysicalMaterial()
+        mat2.base_color = (color 0 255 0)
+        multiSub.materialList[2] = mat2      
+        theBox.material = multiSub
+        
+        -- Export
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+        local exportPath = output_prefix + "test_export_multimaterial_ids_overflow.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        -- Get the exported box prim, and validate the bindings on all the subsets.
+        local boxPrim = stage.GetPrimAtPath("/box")
+        assert_true (boxPrim.IsValid())
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        assert_equal 6 subsets.count
+        
+        -- For all 6 subsets, bindings will alternate between PhysicalMaterial and 
+        -- PhysicalMaterial1. For faces 3-6 (which have matching matIds), this is via 
+        -- the overflow behavior, as the multimaterial only has 2 sub materials.
+        local bindings = #("/mtl/PhysicalMaterial", "/mtl/PhysicalMaterial1")
+        for i = 1 to 6 do
+        (
+            local subset1BindingAPI = pyShade.MaterialBindingAPI(subsets[i])
+            local mtlBindingRel = subset1BindingAPI.GetDirectBindingRel()
+            local bindingTargets = mtlBindingRel.GetTargets()
+            assert_equal bindingTargets.count 1
+            assert_equal (bindings[((mod (i-1) 2) + 1)]) ((bindingTargets[0]) as string)
+            local mtlPrim = stage.GetPrimAtPath(bindingTargets[0])
+            assert_true (pyUsd.Prim.IsValid(mtlPrim))
+        )
+    ),
+    
+    -- Similar to the test above. This case covers the case where all the materialIds
+    -- are the same on a mesh, in this case we don't create material geomSubsets, 
+    -- but we still need to handle the id overflow if the unique id goes beyong the
+    -- the number of subMtls in the assigned multimaterial, as we read the id from the 
+    -- metadata and need to figure out what subMtl to bind.
+    function test_export_multimaterial_single_id_overflow = (
+        
+        local theBox = Box name:"box"
+        
+        -- Multimaterial with 2 slots.        
+        local multiSub = multiSubMaterial numsubs:2
+        multiSub.numSubs = 2
+        local mat1 = PhysicalMaterial name:"sub1"
+        mat1.base_color = (color 255 0 0)
+        multiSub.materialList[1] = mat1
+        local mat2 = PhysicalMaterial name:"sub2"
+        mat2.base_color = (color 0 255 0)
+        multiSub.materialList[2] = mat2      
+        theBox.material = multiSub
+        
+        -- Make all faces use matId 5 on the mesh.
+        matMod = Materialmodifier()
+        matMod.materialId = 5
+        addModifier theBox matMod
+        
+        -- We should observe the following binding (converting to 0 based, and back...): 
+        -- ((5-1) % 2) + 1 = 1 -> mesh should be bound to the first submtls
+        
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+        local exportPath = output_prefix + "test_export_multimaterial_single_id_5_overflow.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        -- Validate the binding.
+        local boxPrim = stage.GetPrimAtPath("/box")
+        assert_true (boxPrim.IsValid())        
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        assert_equal "/mtl/sub1" ((((bindingAPI.GetDirectBindingRel()).GetTargets())[0]) as string)
+        
+        -- Now make all faces use matId 8 on the mesh...
+        matMod.materialId = 8
+        
+        local exportPath = output_prefix + "test_export_multimaterial_single_id_8_overflow.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        -- We should now observe the following binding (converting to 0 based, and back...): 
+        -- ((8-1) % 2) + 1 = 2 -> mesh should be bound to the second submtls
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        -- Validate the binding.
+        local boxPrim = stage.GetPrimAtPath("/box")
+        assert_true (boxPrim.IsValid())        
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        assert_equal "/mtl/sub2" ((((bindingAPI.GetDirectBindingRel()).GetTargets())[0]) as string)
+    ),
+    
+    -- Test material ID "overflow" behavior when materialIds do not match the sub-indices.
+    function test_export_multimaterial_ids_mismatch_overflow = (
+        local theBox = Box name:"box"
+        
+        -- Create a multimaterial, 2 slots, 2 phys materials.
+        local multiSub = multiSubMaterial numSubs:2
+        
+        local mat1 = PhysicalMaterial()
+        mat1.base_color = (color 255 0 0)
+        multiSub.materialList[1] = mat1
+        local mat2 = PhysicalMaterial()
+        mat2.base_color = (color 0 255 0)
+        multiSub.materialList[2] = mat2      
+        theBox.material = multiSub
+        
+        -- Change the material ids. 
+        -- Using material Id 3 will force numSubs = 3
+        -- MatId = 1 will have no material.
+        multiSub.materialIDList[1] = 2
+        multiSub.materialIDList[2] = 3
+                
+        -- Export
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+        local exportPath = output_prefix + "test_export_multimaterial_ids_mismatch_overflow.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        -- Get the exported box prim, and validate the bindings on all the subsets.
+        local boxPrim = stage.GetPrimAtPath("/box")
+        assert_true (boxPrim.IsValid())
+        local bindingAPI = pyShade.MaterialBindingAPI(boxPrim)
+        subsets = bindingAPI.GetMaterialBindSubsets()
+        assert_equal 6 subsets.count
+        
+        -- For all 6 subsets, bindings will alternate between no binding, PhysicalMaterial and 
+        -- PhysicalMaterial1.
+        local bindings = #("", "/mtl/PhysicalMaterial", "/mtl/PhysicalMaterial1")
+        for i = 1 to 6 do
+        (
+            local subset1BindingAPI = pyShade.MaterialBindingAPI(subsets[i])
+            local mtlBindingRel = subset1BindingAPI.GetDirectBindingRel()
+            local bindingTargets = mtlBindingRel.GetTargets()
+            mtlPath = bindings[((mod (i-1) multiSub.numSubs) + 1)]
+            local expectedBindingTargetCount = 0
+            if mtlPath != "" then expectedBindingTargetCount = 1
+            assert_equal bindingTargets.count expectedBindingTargetCount
+            if expectedBindingTargetCount == 0 do 
+            (
+                continue
+            )            
+            assert_equal mtlPath ((bindingTargets[0]) as string)
+            local mtlPrim = stage.GetPrimAtPath(bindingTargets[0])
+            assert_true (pyUsd.Prim.IsValid(mtlPrim))
+        )
+    ),
+    
+    -- Tests exporting different combinations of materials targets.
+    function test_multi_material_targets = (
+        -- Start with creating two boxes, one with a usdpreview surface material, 
+        -- the other with a materialX material.
+        local boxWithUSDPS = Box name:"usdps"
+        
+        local usdps = MaxUsdPreviewSurface name:"usdps1"
+        boxWithUSDPS.material = usdps
+        
+        local boxWithMtlX = Box name:"mtlx"
+        boxWithMtlX.pos = [0,0,50] -- just to see it!
+        local mtlx = MaterialXMaterial name:"mtlx1"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtlx.importMaterial mtlxDoc
+        boxWithMtlX.material = mtlx
+                
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.FileFormat = #ascii
+        expOptions.RootPrimPath = "/"
+            
+        -- 1) Test export with only UsdPreviewSurface target enabled: 
+            
+        expOptions.AllMaterialTargets = #("UsdPreviewSurface")
+        local exportPath = output_prefix + "test_multi_material_targets_only_usdps.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        -- If we have UsdPreviewSurface as target, all materials will be converted - if no supporting shader
+        -- writer exists for a material type, a dummy writer is used, which only looks at the display color.
+        -- MaterialXMaterial -> UsdPreviewSurface UsdShade, via dummy writer.
+        local mtlxMatPrim = stage.GetPrimAtPath("/mtl/mtlx1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        local mtlxShaderPrim = stage.GetPrimAtPath("/mtl/mtlx1/mtlx1")
+        assert_true (mtlxShaderPrim.IsValid())
+        assert_true (mtlxShaderPrim.IsA(pyShade.Shader))
+        -- MaxUsdPreviewSurface -> UsdPreviewSurface UsdShade directly supported by a shader writer.
+        local usdpsMatPrim = stage.GetPrimAtPath("/mtl/usdps1")
+        assert_true (usdpsMatPrim.IsValid())
+        assert_true (usdpsMatPrim.IsA(pyShade.Material))
+        local usdpsShaderPrim = stage.GetPrimAtPath("/mtl/usdps1/usdps1")
+        assert_true (usdpsShaderPrim.IsValid())
+        assert_true (usdpsShaderPrim.IsA(pyShade.Shader))
+        
+        -- 2) Test export with only MaterialX target enabled:
+            
+        expOptions.AllMaterialTargets = #("MaterialX")
+        local exportPath = output_prefix + "test_multi_material_targets_only_mtlx.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        -- MaterialXMaterial -> MaterialX UsdShade, directly supported by a shader writer.
+        local mtlxMatPrim = stage.GetPrimAtPath("/mtl/mtlx1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        local mtlxShaderPrim = stage.GetPrimAtPath("/mtl/mtlx1/Materials/Iberian_Blue_Ceramic_Tiles/ND_standard_surface_surfaceshader")
+        assert_true (mtlxShaderPrim.IsValid())
+        assert_true (mtlxShaderPrim.IsA(pyShade.Shader))
+        -- MaxUsdPreviewSurface -> MaterialX UsdShade -> not handled.
+        local usdpsMatPrim = stage.GetPrimAtPath("/mtl/usdps1")
+        assert_false (usdpsMatPrim.IsValid())
+        
+        -- 3) Export with both UsdPreviewSurface and MaterialX targets enabled.
+       
+        expOptions.AllMaterialTargets = #("UsdPreviewSurface", "MaterialX")
+        local exportPath = output_prefix + "test_multi_material_targets_usdps_and_mtlx.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+            
+        -- Shading data generated from the MaterialXMaterial..
+        local mtlxMatPrim = stage.GetPrimAtPath("/mtl/mtlx1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        -- MaterialX UsdShade node graph...
+        local mtlxContextPrim = stage.GetPrimAtPath("/mtl/mtlx1/MaterialX")
+        assert_true (mtlxContextPrim.IsValid())
+        assert_true (mtlxContextPrim.IsA(pyShade.NodeGraph))
+        local mtlxShaderPrim = stage.GetPrimAtPath("/mtl/mtlx1/MaterialX/Materials/Iberian_Blue_Ceramic_Tiles/ND_standard_surface_surfaceshader")
+        assert_true (mtlxShaderPrim.IsValid())
+        assert_true (mtlxShaderPrim.IsA(pyShade.Shader))
+        -- UsdPreviewSurface UsdShade node graph...
+        local uspsContextPrim = stage.GetPrimAtPath("/mtl/mtlx1/UsdPreviewSurface")
+        assert_true (uspsContextPrim.IsValid())
+        assert_true (uspsContextPrim.IsA(pyShade.NodeGraph))
+        local mtlxUsdPsShaderPrim = stage.GetPrimAtPath("/mtl/mtlx1/UsdPreviewSurface/mtlx1")
+        assert_true (mtlxUsdPsShaderPrim.IsValid())
+        assert_true (mtlxUsdPsShaderPrim.IsA(pyShade.Shader))
+            
+        -- Shading data generated from the MaxUsdPreviewSurface material..
+        local usdpsMatPrim = stage.GetPrimAtPath("/mtl/usdps1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        -- MaterialX UsdShade node graph...
+        local mtlxContextPrim = stage.GetPrimAtPath("/mtl/usdps1/MaterialX")
+        -- This node was empty, should have been cleaned up, verify that it's not there.
+        assert_false (mtlxContextPrim.IsValid())
+        -- UsdPreviewSurface UsdShade node graph...
+        local uspsContextPrim = stage.GetPrimAtPath("/mtl/usdps1/UsdPreviewSurface")
+        assert_true (uspsContextPrim.IsValid())
+        assert_true (uspsContextPrim.IsA(pyShade.NodeGraph))
+        -- Exported UsdPreviewSurface data is under the UsdPreviewSurface rendering context...
+        local mtlxUsdPsShaderPrim = stage.GetPrimAtPath("/mtl/usdps1/UsdPreviewSurface/usdps1")
+        assert_true (mtlxUsdPsShaderPrim.IsValid())
+        assert_true (mtlxUsdPsShaderPrim.IsA(pyShade.Shader))
+
+        --4) Multi context with last resort fallback disabled
+
+        expOptions.UseLastResortUSDPreviewSurfaceWriter = false
+        local exportPath = output_prefix + "test_disable_last_resort_usdps_fallback.usda"
+        USDExporter.ExportFile exportPath exportOptions:expOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+            
+        -- Shading data generated from the MaxUsdPreviewSurface material..
+        local usdpsMatPrim = stage.GetPrimAtPath("/mtl/usdps1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        -- MaterialX UsdShade node graph...
+        local mtlxContextPrim = stage.GetPrimAtPath("/mtl/usdps1/MaterialX")
+        -- This node was empty, should have been cleaned up, verify that it's not there.
+        assert_false (mtlxContextPrim.IsValid())
+        -- UsdPreviewSurface UsdShade node graph...
+        local uspsContextPrim = stage.GetPrimAtPath("/mtl/usdps1/UsdPreviewSurface")
+        assert_true (uspsContextPrim.IsValid())
+        assert_true (uspsContextPrim.IsA(pyShade.NodeGraph))
+        -- Exported UsdPreviewSurface data is under the UsdPreviewSurface rendering context...
+        local mtlxUsdPsShaderPrim = stage.GetPrimAtPath("/mtl/usdps1/UsdPreviewSurface/usdps1")
+        assert_true (mtlxUsdPsShaderPrim.IsValid())
+        assert_true (mtlxUsdPsShaderPrim.IsA(pyShade.Shader))
+            
+        -- Shading data generated from the MaterialXMaterial..
+        local mtlxMatPrim = stage.GetPrimAtPath("/mtl/mtlx1")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        -- MaterialX UsdShade node graph...
+        local mtlxContextPrim = stage.GetPrimAtPath("/mtl/mtlx1/MaterialX")
+        assert_true (mtlxContextPrim.IsValid())
+        assert_true (mtlxContextPrim.IsA(pyShade.NodeGraph))
+        local mtlxShaderPrim = stage.GetPrimAtPath("/mtl/mtlx1/MaterialX/Materials/Iberian_Blue_Ceramic_Tiles/ND_standard_surface_surfaceshader")
+        assert_true (mtlxShaderPrim.IsValid())
+        assert_true (mtlxShaderPrim.IsA(pyShade.Shader))
+        -- UsdPreviewSurface UsdShade node graph...
+        -- The last resort fallback is disabled we should have nothing there.
+        local uspsContextPrim = stage.GetPrimAtPath("/mtl/mtlx1/UsdPreviewSurface")
+        assert_false (uspsContextPrim.IsValid())
+    ),
+    
+    function test_export_usd_preview_surface_material = (
+        -- TODO test that every PBR spec/gloss mtl map are correctly exported
+    ),
+    
+    function test_export_PBR_spec_gloss_material = (
+        -- TODO test that every PBR spec/gloss mtl map are correctly exported
+    ),
+    
+    function test_export_PBR_metal_Rough_material = (
+        -- TODO test that every PBR metal/rought mtl map are correctly exported
+    ),
+    
+    -- Test Separate material layer in conjunction with custom prim scope
+    -- mtl1 export to a separate layer and a customized scope, via custom attributes.
+    -- mtl2 does the same but with different values, via custom attributes.
+    -- mtl3 export to a separate layer and custom scope, both defined in the Export options.
+    -- mtl4 export to the Export option specified layer, but customize it's scope path via the custom attributes.
+    -- mtl5 export to a separate layer with a invalid file path containing unicode characters.
+    function test_export_material_separate_files = (
+
+        local teapot001 = teapot name:"teapot001"
+        local teapot002 = teapot name:"teapot002"
+        local teapot003 = teapot name:"teapot003"
+        local teapot004 = teapot name:"teapot004"
+        local teapot005 = teapot name:"teapot005"
+
+        local baseColorBitmapPath1 = @"C:\folderX\basecolor.png"
+        local baseColorBitmapPath2 = @"C:\AnotherfolderX\basecolor.png"
+        local baseColorBitmapPath3 = @"C:\YetAnotherfolderX\basecolor.png"
+        local baseColorBitmapPath4 = @"C:\YetAnotherDifferentfolderX\basecolor.png"
+        local baseColorBitmapPath5 = @"C:\YetAnotherDifferentNewfolderX\basecolor.png"
+
+        local mtl1 = MaxUsdPreviewSurface()
+        mtl1.name = "matTeapot001"
+        mtl1.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath1
+
+        local mtl2 = MaxUsdPreviewSurface()
+        mtl2.name = "matTeapot002"
+        mtl2.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath2
+
+        local mtl3 = MaxUsdPreviewSurface()
+        mtl3.name = "matTeapot003"
+        mtl3.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath3
+        
+        local mtl4 = MaxUsdPreviewSurface()
+        mtl4.name = "matTeapot004"
+        mtl4.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath4
+		
+        local mtl5 = MaxUsdPreviewSurface()
+        mtl5.name = "matTeapot005"
+        mtl5.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath5
+		
+        teapot001.material = mtl1
+        teapot002.material = mtl2
+        teapot003.material = mtl3
+        teapot004.material = mtl4
+        teapot005.material = mtl5
+
+        select $*
+        macros.run "USD" "AddUsdCustomAttrToObjectSelection"
+        custAttrFileName = output_prefix + "custAttrMaterial.usda"
+        mtl1.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl2.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl1.UsdMaterialAttributeHolder.separateLayer = true
+        mtl2.UsdMaterialAttributeHolder.separateLayer = true
+        mtl1.UsdMaterialAttributeHolder.filePath = custAttrFileName
+        mtl1.UsdMaterialAttributeHolder.primPath = "Hello"
+        mtl2.UsdMaterialAttributeHolder.filePath = custAttrFileName
+        mtl2.UsdMaterialAttributeHolder.primPath = "World"
+        
+        mtl4.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl4.UsdMaterialAttributeHolder.primPath = "Test"
+		
+        mtl5.UsdMaterialAttributeHolder.filePath = output_prefix + "custAttrMaterialééé.usda"
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.MaterialPrimPath = "Materials"
+        exportOptions.FileFormat = #ascii
+        exportOptions.UseSeparateMaterialLayer = true
+
+        local exportPath = output_prefix + "export_material_separate_files.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/Hello/matTeapot001/matTeapot001"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath1)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/World/matTeapot002/matTeapot002"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath2)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/Materials/matTeapot003/matTeapot003"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath3)+ "@") inputFile
+            
+        local shaderPrim = pyShade.Shader.Get stage "/root/Test/matTeapot004/matTeapot004"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath4)+ "@") inputFile
+			
+        local shaderPrim = pyShade.Shader.Get stage "/root/Materials/matTeapot005/matTeapot005"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath5)+ "@") inputFile
+        assert_equal mtl5.UsdMaterialAttributeHolder.filePath (output_prefix + "custAttrMaterial___.usda")
+
+        layerStack = stage.GetLayerStack(false)
+        assert_true (pysdf.Layer.FindOrOpen(exportPath) == layerStack[1])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "custAttrMaterial.usda") == layerStack[2])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "export_material_separate_files_mtl.usda") == layerStack[3])
+    ),
+    
+    -- Similar to test above, but we the load the resulting layers in memory, and make sure exporting
+    -- works as expected.
+    function test_export_material_separate_layers_already_loaded = (
+
+        local teapot001 = teapot name:"teapot001"
+        local teapot002 = teapot name:"teapot002"
+
+        local baseColorBitmapPath1 = @"C:\folderX\basecolor.png"
+        local baseColorBitmapPath2 = @"C:\AnotherfolderX\basecolor.png"
+        
+        local mtl1 = MaxUsdPreviewSurface()
+        mtl1.name = "matTeapot001"
+        mtl1.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath1
+
+        local mtl2 = MaxUsdPreviewSurface()
+        mtl2.name = "matTeapot002"
+        mtl2.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath2
+        
+        teapot001.material = mtl1
+        teapot002.material = mtl2
+        
+        select $*
+        macros.run "USD" "AddUsdCustomAttrToObjectSelection"
+        custAttrFileName = output_prefix + "custAttrMaterial.usda"
+        mtl1.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl1.UsdMaterialAttributeHolder.separateLayer = true
+        mtl1.UsdMaterialAttributeHolder.filePath = custAttrFileName
+        mtl1.UsdMaterialAttributeHolder.primPath = "Foo"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.MaterialLayerPath = output_prefix + "splitedMaterial_already_loaded.usda"
+        exportOptions.MaterialPrimPath = "mtl"
+        exportOptions.FileFormat = #ascii
+        exportOptions.UseSeparateMaterialLayer = true
+        exportOptions.OpenInUsdView = true
+        local exportPath = output_prefix + "test_export_material_separate_layers_already_loaded.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+    
+        -- Load the stage and check the result.
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        local shaderPrim = pyShade.Shader.Get stage "/root/Foo/matTeapot001/matTeapot001"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath1)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/mtl/matTeapot002/matTeapot002"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath2)+ "@") inputFile
+
+        layerStack = stage.GetLayerStack(false)
+        assert_true (pysdf.Layer.FindOrOpen(exportPath) == layerStack[1])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "custAttrMaterial.usda") == layerStack[2])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "splitedMaterial_already_loaded.usda") == layerStack[3])
+            
+        -- Change some value, and reexport. This validates behavior when target layers are already in memory.
+        mtl1.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath2
+        mtl2.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath1    
+        -- Also change a target path, this way we make sure the layer is correctly overwritten.
+        mtl1.UsdMaterialAttributeHolder.primPath = "Bar"
+            
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        stage.Reload()
+        
+        -- New path... previous prim no longer exists in layer.    
+        local shaderPrim = pyShade.Shader.Get stage "/root/Bar/matTeapot001/matTeapot001"
+        local previousShaderPrim = stage.GetPrimAtPath "/root/Foo/matTeapot001/matTeapot001"
+
+        assert_false(previousShaderPrim.IsValid())
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        -- New property value.
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath2)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/mtl/matTeapot002/matTeapot002"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        -- New property value.
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath1)+ "@") inputFile
+        layerStack = stage.GetLayerStack(false)
+        assert_true (pysdf.Layer.FindOrOpen(exportPath) == layerStack[1])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "custAttrMaterial.usda") == layerStack[2])
+        assert_true (pysdf.Layer.FindOrOpen(output_prefix + "splitedMaterial_already_loaded.usda") == layerStack[3])
+    ),
+    
+    -- Test material export scope customization
+    -- mtl1 is targeting an absolute scope of "/Hello"
+    -- mtl2 is targeting a relative scope of "World"
+    -- mtl3 is handled by the export options using an absolute scope of "/Materials"
+    function test_export_material_custom_scope = (
+        
+        local teapot001 = teapot name:"teapot001"
+        local teapot002 = teapot name:"teapot002"
+        local teapot003 = teapot name:"teapot003"
+
+        local baseColorBitmapPath1 = @"C:\folderX\basecolor.png"
+        local baseColorBitmapPath2 = @"C:\AnotherfolderX\basecolor.png"
+        local baseColorBitmapPath3 = @"C:\YetAnotherfolderX\basecolor.png"
+
+        local mtl1 = MaxUsdPreviewSurface()
+        mtl1.name = "matTeapot001"
+        mtl1.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath1
+
+        local mtl2 = MaxUsdPreviewSurface()
+        mtl2.name = "matTeapot002"
+        mtl2.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath2
+
+        local mtl3 = MaxUsdPreviewSurface()
+        mtl3.name = "matTeapot003"
+        mtl3.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath3
+        
+        teapot001.material = mtl1
+        teapot002.material = mtl2
+        teapot003.material = mtl3
+        
+        select $*
+        macros.run "USD" "AddUsdCustomAttrToObjectSelection"
+        mtl1.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl2.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl1.UsdMaterialAttributeHolder.primPath = "/Hello"
+        mtl2.UsdMaterialAttributeHolder.primPath = "World"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.MaterialPrimPath = "/Materials"
+        exportOptions.FileFormat = #ascii
+        
+        local exportPath = output_prefix + "export_material_custom_scope.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+
+        local shaderPrim = pyShade.Shader.Get stage "/Hello/matTeapot001/matTeapot001"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath1)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/root/World/matTeapot002/matTeapot002"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath2)+ "@") inputFile
+
+        local shaderPrim = pyShade.Shader.Get stage "/Materials/matTeapot003/matTeapot003"
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local texturePrim = getTexturePrim (connectedSourceTuple[1])
+        local inputFile = (texturePrim.GetInput("file")).Get() as string
+        assert_equal ("@" + (pathToForwardSlash baseColorBitmapPath3)+ "@") inputFile
+    ),
+	
+	-- Test the full path of the material scope to see if the root and mtl paths are respected
+	function test_export_material_scope_path = (
+            local tp = teapot name:"tp"
+            local mtl = MaxUsdPreviewSurface()
+            local baseColorBitmapPath1 = @"C:\folderX\basecolor.png"
+            
+            mtl.name = "matTeapot"
+            mtl.diffuseColor_map = Bitmaptexture fileName:baseColorBitmapPath1
+            tp.material = mtl
+            
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.MaterialPrimPath = "materials"
+            exportOptions.FileFormat = #ascii
+            
+            local exportPath = output_prefix + "export_material_scope_path.usda"
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            local stage = pyUsd.Stage.Open(exportPath)
+            
+            local mtlPrim = stage.GetPrimAtPath("/root/materials")
+            assert_true (pyUsd.Prim.IsValid(mtlPrim))
+	    assert_true (mtlPrim.IsA(pyUsdGeom.Scope))
+	),
+	
+	-- Test that we do not create the mtl scope if there's no materials to export
+	function test_export_material_no_scope = (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.FileFormat = #ascii
+            
+            local exportPath = output_prefix + "export_material_no_scope.usda"
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            local stage = pyUsd.Stage.Open(exportPath)
+            
+            local mtlScopePrim = stage.GetPrimAtPath("/root/mtl")
+            assert_false (pyUsd.Prim.IsValid(mtlScopePrim))
+	),
+	
+    
+    function teardown = (
+        pyUsdMaterialWriter._material_export_options["relative_texture_paths"] = true
+    ),
+
+    Tests = #(
+	test_export_previewsurface_material_values,
+        test_export_single_material_bindings,
+        test_export_single_material_bindings_with_exported_object_transform,
+        test_export_hierarchy_material_bindings,
+        test_export_multi_material_bindings,
+        test_export_multi_material_bindings_with_exported_object_transform,
+        test_export_multi_material_only_one_matid_used,
+        test_export_multi_material_missing_slots,
+        test_export_multi_material_unused_mtlId,
+        test_export_multi_material_on_instances_with_same_material,
+        test_export_simple_material_on_instances_with_same_material,
+        test_export_material_on_instances_with_different_materials,
+        test_export_material_on_instances_with_different_materials_when_only_one_matId_used,
+        test_export_material_on_single_selected_instance,
+        test_export_instance_with_object_transform,
+        test_export_physical_material_values,
+        test_export_physical_material_bitmap_maps,
+        test_multi_channel_texture_material_connections,
+        test_consecutive_material_export,
+        test_shared_texture_map,
+        test_export_unknown_material_to_dummy,
+        test_material_name_conflict,
+        test_export_multimaterial_ids_overflow,
+        test_export_multimaterial_single_id_overflow,
+        test_export_multimaterial_ids_mismatch_overflow,
+        test_multi_material_targets,
+        test_export_material_separate_files,
+        test_export_material_separate_layers_already_loaded,
+        test_export_material_custom_scope,
+        test_export_material_scope_path,
+        test_export_material_no_scope
+    )
+)
+
+runUsdTestFixture export_material_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_metadata_test.ms b/src/Tests/Integration/export_metadata_test.ms
new file mode 100644
index 0000000..2ed0dbe
--- /dev/null
+++ b/src/Tests/Integration/export_metadata_test.ms
@@ -0,0 +1,578 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyKind = python.import("pxr.Kind")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_METADATA_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_metadata_test
+(
+    private
+    importOptions = USDImporter.CreateOptions(),
+    exportOptions = USDExporter.CreateOptions(),
+
+    function resetMaxFileAndSetupUnits =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    public
+    function setup =
+    (
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        resetMaxFileAndSetupUnits()
+        -- This makes all the custom attribute identifiers upper case for the session, ensuring case insensitivity.
+        upper_case_test = attributes USDData
+        (
+            parameters USD
+            (
+                USD_PURPOSE type:#string
+                USD_HIDDEN type:#boolean
+                USD_KIND type:#string
+            )
+        )        
+    ),
+
+    function createTestSceneWithUsdCustomAttributes =
+    (
+        testFile = output_prefix + "test_file.usda"
+        local stage = pyUsd.Stage.CreateNew(testFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Box001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        purposeAttr.Set(pyUsdGeom.Tokens.proxy)
+        (pyUsd.ModelAPI(prim001)).SetKind(pyKind.Tokens.component)
+        (prim001.GetPrim()).SetHidden(True)
+        (stage.GetRootLayer()).Save()
+
+        USDImporter.ImportFile testFile importOptions:importOptions
+    ),
+
+    function createTestSceneWithDefaultValues =
+    (
+        testFile = output_prefix + "test_default_file.usda"
+        local stage = pyUsd.Stage.CreateNew(testFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Box001"
+        (stage.GetRootLayer()).Save()
+
+        USDImporter.ImportFile testFile importOptions:importOptions
+    ),
+
+    function test_metadata = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        testBox.baseObject.usd_hidden = true
+        testBox.baseObject.usd_purpose = "render"
+        testBox.baseObject.usd_kind = "component"
+
+        -- when
+        testUsdFile = output_prefix + "test_metadata.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        assert_true ((prim.GetPrim()).IsHidden()) message:"prim.IsHidden() should be true"
+        assert_equal "render" (((pyUsdGeom.Imageable(prim)).GetPurposeAttr()).Get())
+        assert_equal "component" ((pyUsd.ModelAPI(prim)).GetKind())
+    ),
+
+    function test_ca_on_node = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        -- modifying custom attribute from node (but CA is attached to baseObject)
+        testBox.usd_hidden = true
+        testBox.usd_purpose = "render"
+        testBox.usd_kind = "component"
+
+        -- when
+        testUsdFile = output_prefix + "test_ca_on_node.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        -- modifying CA from node should still reflect changes on baseObject
+        assert_true ((prim.GetPrim()).IsHidden()) message:"prim.IsHidden() should be true"
+        assert_equal "render" (((pyUsdGeom.Imageable(prim)).GetPurposeAttr()).Get())
+        assert_equal "component" ((pyUsd.ModelAPI(prim)).GetKind())
+    ),
+
+    function test_ca_on_node_with_modifier = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        testBox.baseObject.usd_hidden = true
+        testBox.baseObject.usd_purpose = "proxy"
+        testBox.baseObject.usd_kind = "component"
+
+        -- when
+        -- add Edit_Mesh modifier to change type of node to Editable_mesh
+        editMeshModifier = Edit_Mesh()
+        addModifier testBox editMeshModifier
+        testUsdFile = output_prefix + "test_ca_on_node_with_modifier.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_equal "component" testBox.baseObject.usd_kind
+        assert_equal "proxy" testBox.baseObject.usd_purpose
+        assert_equal true testBox.baseObject.usd_hidden
+        assert_equal "component" testBox.usd_kind
+        assert_equal "proxy" testBox.usd_purpose
+        assert_equal true testBox.usd_hidden
+
+        -- custom attributes should be exported as they were assigned to the BaseObject
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        assert_true ((prim.GetPrim()).IsHidden()) message:"prim.IsHidden() should be true"
+        assert_equal "proxy" (((pyUsdGeom.Imageable(prim)).GetPurposeAttr()).Get())
+        assert_equal "component" ((pyUsd.ModelAPI(prim)).GetKind())
+    ),
+    function test_empty_values = (
+        -- given
+        usdAllCA = attributes USDData
+        (
+            parameters USD rollout:USD_Rollout
+            (
+                usd_purpose type:#string ui:usd_purpose
+                usd_kind type:#string ui:usd_kind
+            )
+            rollout USD_Rollout "USD Metadata"
+            (
+                edittext usd_purpose "Purpose: "
+                edittext usd_kind "Kind: "
+            )
+        )
+        testBox = Box name:"empty_values"
+        custAttributes.add testBox usdAllCA #Unique
+        testBox.usd_purpose = ""
+        assert_true (isProperty testBox "usd_purpose")
+        assert_true (isProperty testBox "usd_kind")
+        assert_equal "" testBox.usd_purpose
+        assert_undefined testBox.usd_kind
+
+        -- when
+        testUsdFile = output_prefix + "test_empty_values.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/empty_values")
+        local primObj = prim.GetPrim()
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_false (purposeAttr.HasAuthoredValue())
+        assert_false (prim.HasMetadata("kind"))
+    ),
+
+    function test_default_values = (
+        -- given
+        createTestSceneWithDefaultValues()
+        testBox = $Box001
+
+        -- when
+        testUsdFile = output_prefix + "test_default_values.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        local primObj = prim.GetPrim()
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_false (purposeAttr.HasAuthoredValue())
+        assert_false (prim.HasMetadata("kind"))
+        assert_false (prim.HasMetadata("hidden"))
+    ),
+
+    function test_hidden_false = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        testBox.baseObject.usd_hidden = false
+
+        -- when
+        testUsdFile = output_prefix + "test_default_values.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        local primObj = prim.GetPrim()
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_true (primObj.HasMetadata("hidden"))
+        assert_false (primObj.IsHidden())
+    ),
+
+    function test_non_default_values = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        testBox.baseObject.usd_purpose = "_custom_purpose_*()"
+        testBox.baseObject.usd_kind = "dummyKind$123"
+
+        -- when
+        testUsdFile = output_prefix + "test_non_default_values.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_equal testBox.usd_purpose (purposeAttr.Get())
+        assert_equal testBox.usd_kind (model.GetKind())
+    ),
+
+    function test_manually_added_ca = (
+        -- given
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+                usd_hidden type:#boolean
+                usd_kind type:#string
+            )
+        )
+
+        usdHiddenCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_hidden type:#boolean
+            )
+        )
+
+        usdKindCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_kind type:#string
+            )
+        )
+
+        usdPurposeCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+            )
+        )
+
+        mybox1 = Box name:"box_all_default"
+        custAttributes.add mybox1.baseObject usdAllCA #Unique BaseObject:true
+        mybox1.usd_hidden = true
+        mybox1.usd_kind = "component"
+        mybox1.usd_purpose = "render"
+
+        mybox2 = Box name:"box_hidden_false"
+        custAttributes.add mybox2.baseObject usdHiddenCA #Unique BaseObject:true
+        mybox2.usd_hidden = false
+
+        mybox3 = Box name:"box_kind_empty"
+        custAttributes.add mybox3.baseObject usdKindCA #Unique BaseObject:true
+        mybox3.usd_kind = ""
+
+        mybox4 = Box name:"box_purpose_default"
+        custAttributes.add mybox4.baseObject usdPurposeCA #Unique BaseObject:true
+        mybox4.usd_purpose = "default"
+
+        mybox5 = Box name:"box_all_non_default"
+        custAttributes.add mybox5.baseObject usdAllCA #Unique BaseObject:true
+        mybox5.usd_hidden = true
+        mybox5.usd_kind = "blablaK"
+        mybox5.usd_purpose = "blebleK"
+
+        -- when
+        testUsdFile = output_prefix + "test_manually_added_ca.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+
+        local prim1 = stage.GetPrimAtPath("/box_all_default")
+        local primObj1 = prim1.GetPrim()
+        local imageablePrim1 = pyUsdGeom.Imageable(prim1)
+        local purposeAttr1 = imageablePrim1.GetPurposeAttr()
+        local model1 = pyUsd.ModelAPI(prim1)
+        assert_equal mybox1.usd_purpose (purposeAttr1.Get())
+        assert_equal mybox1.usd_kind (model1.GetKind())
+        assert_equal mybox1.usd_hidden (primObj1.IsHidden())
+
+        local prim2 = stage.GetPrimAtPath("/box_hidden_false")
+        local primObj2 = prim2.GetPrim()
+        assert_true (primObj2.HasMetadata("hidden"))
+
+        local prim3 = stage.GetPrimAtPath("/box_kind_empty")
+        local primObj3 = prim3.GetPrim()
+        assert_false (primObj3.HasMetadata("kind"))
+
+        local prim4 = stage.GetPrimAtPath("/box_purpose_default")
+        local imageablePrim4 = pyUsdGeom.Imageable(prim4)
+        local purposeAttr4 = imageablePrim4.GetPurposeAttr()
+        assert_false (purposeAttr4.HasAuthoredValue())
+
+        local prim5 = stage.GetPrimAtPath("/box_all_non_default")
+        local primObj5 = prim5.GetPrim()
+        local imageablePrim5 = pyUsdGeom.Imageable(prim5)
+        local purposeAttr5 = imageablePrim5.GetPurposeAttr()
+        local model5 = pyUsd.ModelAPI(prim5)
+        assert_equal mybox5.usd_purpose (purposeAttr5.Get())
+        assert_equal mybox5.usd_kind (model5.GetKind())
+        assert_equal mybox5.usd_hidden (primObj5.IsHidden())
+    ),
+    function test_manually_added_ca_wrong_datatypes = (
+        -- given
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#float
+                usd_hidden type:#string
+                usd_kind type:#integer
+            )
+        )
+        mybox1 = Box name:"box_bad_datatypes"
+        custAttributes.add mybox1.baseObject usdAllCA #Unique BaseObject:true
+        mybox1.usd_hidden = "1"
+        mybox1.usd_kind = 1
+        mybox1.usd_purpose = 1.0f
+
+        -- when
+        testUsdFile = output_prefix + "test_manually_added_ca_wrong_datatypes.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+
+        local prim1 = stage.GetPrimAtPath("/box_bad_datatypes")
+        local primObj1 = prim1.GetPrim()
+        local imageablePrim1 = pyUsdGeom.Imageable(prim1)
+        local purposeAttr1 = imageablePrim1.GetPurposeAttr()
+        local model1 = pyUsd.ModelAPI(prim1)
+        assert_false (purposeAttr1.HasAuthoredValue())
+        assert_false (primObj1.HasMetadata("kind"))
+        assert_false (primObj1.HasMetadata("hidden"))
+    ),
+
+    function test_ca_on_modifier = (
+        -- given
+        testBox = Box name:"box_no_metadata_on_baseobject"
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+                usd_hidden type:#boolean
+                usd_kind type:#string
+            )
+        )
+        editMeshModifier = Edit_Mesh()
+        addModifier testBox editMeshModifier
+        custAttributes.add editMeshModifier usdAllCA
+
+        editMeshModifier.usd_purpose = "proxy"
+        editMeshModifier.usd_kind = "component"
+        editMeshModifier.usd_hidden = true
+
+        -- when
+        testUsdFile = output_prefix + "test_ca_on_modifier.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        -- manually added CA on modifier should affect export
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/box_no_metadata_on_baseobject")
+        local primObj = prim.GetPrim()
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_true (purposeAttr.HasAuthoredValue())
+        assert_true (primObj.HasMetadata("kind"))
+        assert_true (primObj.HasMetadata("hidden"))
+    ),
+
+    function test_ca_on_modifier_and_baseobject = (
+        -- given
+        createTestSceneWithUsdCustomAttributes()
+        testBox = $Box001
+        testBox.baseObject.usd_hidden = true
+        testBox.baseObject.usd_purpose = "proxy"
+        testBox.baseObject.usd_kind = "component"
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+                usd_hidden type:#boolean
+                usd_kind type:#string
+            )
+        )
+        editMeshModifier = Edit_Mesh()
+        addModifier testBox editMeshModifier
+        custAttributes.add editMeshModifier usdAllCA
+        editMeshModifier.usd_purpose = "blebleK"
+        editMeshModifier.usd_kind = "blablaK"
+        editMeshModifier.usd_hidden = false
+
+        -- when
+
+        testUsdFile = output_prefix + "test_ca_on_modifier_and_baseobject.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_equal "component" testBox.baseObject.usd_kind
+        assert_equal "proxy" testBox.baseObject.usd_purpose
+        assert_equal true testBox.baseObject.usd_hidden
+        assert_equal "component" testBox.usd_kind
+        assert_equal "proxy" testBox.usd_purpose
+        assert_equal true testBox.usd_hidden
+
+        -- manually added CA on modifier should affect the export
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        assert_false ((prim.GetPrim()).IsHidden()) message:"prim.IsHidden() should be false"
+        assert_equal "blebleK" (((pyUsdGeom.Imageable(prim)).GetPurposeAttr()).Get())
+        assert_equal "blablaK" ((pyUsd.ModelAPI(prim)).GetKind())
+    ),
+
+    function test_scene_metadata = (
+        myBox = Box name:"Box001"
+
+        testUsdFile = output_prefix + "test_scene_metadata.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+        assert_true status message:"Export to usd failed"
+
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local rootLayer = (stage.GetRootLayer())
+        assert_true (rootLayer.HasCustomLayerData()) message:"Root layer should have custom layer data."
+
+        local customData = rootLayer.customLayerData
+        assert_defined (customData["creator"]) message:"Creator should be defined."
+    ),
+
+    function test_group_kind_metadata = (
+        -- given
+        myBox1 = Box name:"Box001"
+        myBox2 = Box name:"Box002"
+        myBox3 = Box name:"Box003"
+		
+        myGroup = group #(myBox1, myBox2, myBox3) name:"myGroup001"
+		
+        -- when
+        testUsdFile = output_prefix + "test_kind_metadata.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+		
+        -- then
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/myGroup001")
+        assert_equal "group" ((pyUsd.ModelAPI(prim)).GetKind())      
+    ),
+	
+    function test_user_defined_kind_metadata_prioritized = (
+		
+        usdKindCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_kind type:#string
+            )
+        )
+		
+        -- given
+        myBox1 = Box name:"Box001"
+        myBox2 = Box name:"Box002"
+        myBox3 = Box name:"Box003"
+		      
+		
+        myGroup = group #(myBox1, myBox2, myBox3) name:"myGroup001"
+		
+        custAttributes.add myGroup usdKindCA #Unique BaseObject:true
+        myGroup.usd_kind = "userDefined"
+		
+        -- when
+        testUsdFile = output_prefix + "test_kind_metadata.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+		
+        -- then
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/myGroup001")
+        assert_equal "userDefined" ((pyUsd.ModelAPI(prim)).GetKind()) 	
+    ),
+
+
+    function teardown = (
+        resetMaxFile #noPrompt
+        -- clean up manually scripted custom attributes
+        scriptedCADefs = custAttributes.getSceneDefs()
+        toDeleteDefs = #()
+        for def in scriptedCADefs do (
+            if def.Name == #USDData then (
+                append toDeleteDefs def
+            )
+        )
+        for def in toDeleteDefs do (
+            custAttributes.deleteDef def
+        )
+    ),
+
+    tests =     #(test_metadata,
+                test_ca_on_node,
+                test_non_default_values,
+                test_default_values,
+                test_ca_on_node_with_modifier,
+                test_hidden_false,
+                test_manually_added_ca,
+                test_manually_added_ca_wrong_datatypes,
+                test_ca_on_modifier_and_baseobject,
+                test_ca_on_modifier,
+                test_empty_values,
+                test_scene_metadata,
+                test_group_kind_metadata,
+                test_user_defined_kind_metadata_prioritized
+                )
+)
+
+runUsdTestFixture export_metadata_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_metersPerUnit_test.ms b/src/Tests/Integration/export_metersPerUnit_test.ms
new file mode 100644
index 0000000..6b2d30f
--- /dev/null
+++ b/src/Tests/Integration/export_metersPerUnit_test.ms
@@ -0,0 +1,142 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_METERSPERUNIT_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_metersPerUnit_test
+( 
+    private
+    initialUnits,
+    initialScale,
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public
+    function setup = (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+    ),
+
+    function testMillimeterUnits = (
+        --given
+        units.SystemType = #Millimeters
+        units.SystemScale = 1
+            
+        --when
+        exportPath = (output_prefix + "export_millimeters_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 0.001 metersPerUnits
+    ),
+
+    function testCentimeterUnits = (
+        --given
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+            
+        --when
+        exportPath = (output_prefix + "export_centimeters_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 0.01 metersPerUnits
+    ),
+    
+    function testMeterUnits = (
+        --given
+        units.SystemType = #Meters
+        units.SystemScale = 1
+            
+        --when
+        exportPath = (output_prefix + "export_meters_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 1 metersPerUnits
+    ),
+    
+    function test2MetersUnits = (
+        --given
+        units.SystemType = #Meters
+        units.SystemScale = 2
+            
+        --when
+        exportPath = (output_prefix + "export_two_meters_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 2 metersPerUnits
+    ),
+    
+    function testKilometerUnits = (
+        --given
+        units.SystemType = #Kilometers
+        units.SystemScale = 1
+            
+        --when
+        exportPath = (output_prefix + "export_kilometers_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 1000 metersPerUnits
+    ),
+    
+    function testInchesUnits = (
+        --given
+        units.SystemType = #Inches
+        units.SystemScale = 1
+            
+        --when
+        exportPath = (output_prefix + "export_inchesmeters_test.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local metersPerUnits = pyUsdGeom.GetStageMetersPerUnit(stage)
+        
+        --then
+        assert_float_equal 0.0254 metersPerUnits
+    ),
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(testMillimeterUnits, testCentimeterUnits, testMeterUnits, test2MetersUnits, testKilometerUnits, testInchesUnits)
+)
+
+runUsdTestFixture export_metersPerUnit_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_morphers_test.ms b/src/Tests/Integration/export_morphers_test.ms
new file mode 100644
index 0000000..430b287
--- /dev/null
+++ b/src/Tests/Integration/export_morphers_test.ms
@@ -0,0 +1,488 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdSkel = python.import("pxr.UsdSkel")
+pyUsdGeom = python.import("pxr.UsdGeom")
+
+struct export_morphers_test
+(
+    private 
+    output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_MORPHER_TESTS_",
+    exportOptions = USDExporter.CreateOptions(),
+    initialUnits,
+    initialScale,
+
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+
+        exportOptions.FileFormat = #ascii
+        exportOptions.Morpher = true
+        exportOptions.Meshes = true
+        exportOptions.RootPrimPath = "/root"
+
+        local rangeStart = 0
+        local rangeEnd = 30
+        
+        animationRange = interval rangeStart rangeEnd
+        exportOptions.TimeMode = #animationRange
+    ),
+
+    function createTargetFromNode node vertOffset = 
+    (
+        mytarget = snapshot node
+        for i = 1 to mytarget.numVerts do
+        (
+            local vertex = mytarget.verts[i]
+            move vertex vertOffset
+        )
+        return mytarget
+    ),
+
+    -- scramble the vertices so it generates different normals
+    function randomizeVertices node = 
+    (
+        seed 1234 -- always generate the same number for testing purposes
+
+        numVertices = meshOp.getNumVerts node.mesh
+        verticesArray = for vert = 1 to numVertices collect (meshOp.getVert node.mesh vert)
+        for i = 1 to verticesArray.count do
+        (
+            verticesArray[i] = verticesArray[i] * (random 1.0 10.0) / 10.0
+        )
+
+        numFaces = meshOp.getNumFaces node.mesh
+        facesArray = for face = 1 to numFaces collect (getFace node.mesh face)
+
+        m = triMesh()
+        setMesh m verts:verticesArray faces:facesArray
+        node.mesh = m
+        update node.mesh
+    ),
+
+    function createMorpherTestScene =
+    (
+        createdNodes = #()
+
+        mybox = Box isSelected:on width: 20.0 length: 20.0 height: 20.0
+        morpherMod = Morpher()
+        addModifier mybox morpherMod
+        morpherMod.Spinner_Minimum = -100.0
+
+        append createdNodes mybox
+
+        mytarget1 = createTargetFromNode mybox [0,0,10]
+        randomizeVertices mytarget1 -- this will generate delta normals
+        mytarget1.name = "Target 1"
+        WM3_MC_BuildFromNode morpherMod 1 mytarget1
+        append createdNodes mytarget1
+
+        mytarget2 = createTargetFromNode mybox [0,20,0]
+        mytarget2.name = "Target 2"
+        WM3_MC_BuildFromNode morpherMod 2 mytarget2
+        append createdNodes mytarget2
+
+        mytarget3 = createTargetFromNode mybox [30,0,0]
+        mytarget3.name = "Target 3"
+        WM3_MC_BuildFromNode morpherMod 3 mytarget3
+        append createdNodes mytarget3
+
+        floatController = bezier_float()
+        morpherMod[2].controller = floatController
+
+        with animate on 
+        (
+            at time 10 WM3_MC_SetValue morpherMod 1 100.0
+            -- adding the keyframe here due to the bug where we can't auto add frame 0
+            at time 0 WM3_MC_SetValue morpherMod 1 0.0
+            at time 10 WM3_MC_SetValue morpherMod 2 0.0
+            at time 10 WM3_MC_SetValue morpherMod 3 0.0
+            at time 20 WM3_MC_SetValue morpherMod 1 0.0
+            at time 20 floatController.value = 100.0
+            at time 20 WM3_MC_SetValue morpherMod 3 0.0
+            at time 30 WM3_MC_SetValue morpherMod 1 0.0
+            at time 30 floatController.value = 0.0
+            at time 30 WM3_MC_SetValue morpherMod 3 100.0
+        )
+
+        return createdNodes
+    ),
+
+    function createProgressiveMorpherTestScene =
+    (
+        createdNodes = #()
+
+        mybox = Box isSelected:on width: 20.0 length: 20.0 height: 20.0
+        morpherMod = Morpher()
+        addModifier mybox morpherMod
+
+        append createdNodes mybox
+
+        mytarget1 = createTargetFromNode mybox [0,0,10]
+        mytarget1.name = "Target 1"
+        WM3_MC_BuildFromNode morpherMod 1 mytarget1
+        append createdNodes mytarget1
+
+        mytarget2 = createTargetFromNode mybox [0,20,0]
+        -- setting the name here to start with a number to cover the case that usd was replacing the first number
+        -- to go around changing the name of the node completely, we intially pre-pend _ before the number
+        mytarget2.name = "2"
+        WM3_AddProgressiveMorphNode morpherMod 1 mytarget2
+        append createdNodes mytarget2
+
+        mytarget3 = createTargetFromNode mybox [30,0,0]
+        mytarget3.name = "Target 3"
+        WM3_AddProgressiveMorphNode morpherMod 1 mytarget3
+        append createdNodes mytarget3
+
+        WM3_SetProgressiveMorphWeight morpherMod 1 mytarget1 25.0
+        WM3_SetProgressiveMorphWeight morpherMod 1 mytarget2 50.0
+        WM3_SetProgressiveMorphWeight morpherMod 1 mytarget3 100.0
+
+        with animate on 
+        (
+            at time 10 WM3_MC_SetValue morpherMod 1 0.0
+            at time 20 WM3_MC_SetValue morpherMod 1 25.0
+            at time 30 WM3_MC_SetValue morpherMod 1 50.0
+            at time 50 WM3_MC_SetValue morpherMod 1 100.0
+        )
+
+        return createdNodes
+    ),
+
+    function execute_morpher_properties_tests exportPath deletedExtraMeshes = 
+    (
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- general variables
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        local meshPrimPath = (skelRootPath + "/Box001")
+        local boxPrim = stage.GetPrimAtPath(meshPrimPath)
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        -- check if skel has the animation target
+        local skelBindingApi = pyUsdSkel.BindingAPI.Get stage (skelPrim.GetPath())
+        assert_true (animPrim.GetPath() as string == (skelBindingApi.GetAnimationSource()).GetPath() as string) Message:"Animation binding doesn't match the animation prim"
+
+        -- check if mesh has the skel binding
+        local meshBindingApi = pyUsdSkel.BindingAPI.Get stage meshPrimPath
+        local meshSkelRel = meshBindingApi.GetSkeletonRel()
+        local meshSkelTargets = meshSkelRel.GetTargets()
+        assert_equal 1 meshSkelTargets.count Message: "There should only exist 1 skel relationship"
+        assert_true (meshSkelTargets[1] as string == skelPrim.GetPath() as string) Message: "SkelTarget doesn't match skel path"
+
+        -- we create an extra mesh when exporting blendshape. Make sure it has been deleted
+        foundExportNodes = #()
+        rootChildren = (stage.GetPrimAtPath(skelRootPath)).GetChildren()
+        for i = 1 to rootChildren.count do
+        (
+            if (rootChildren[i].IsA(pyUsdGeom.Xformable)) then
+            (
+                append foundExportNodes rootChildren[i]
+            )
+        )
+
+        if deletedExtraMeshes then
+        (
+            assert_equal 2 foundExportNodes.count Message: "The root node should only have 2 children: Skeleton prim + the mesh prim"
+        )
+        else 
+        (
+            assert_equal 5 foundExportNodes.count Message: "The root node should only have 5 children: Skeleton prim + the mesh/xform with meshes"
+        )
+
+        -- check if there are any unexpected blendshapes
+        foundBlendShapes = #()
+        meshChildren = (boxPrim).GetChildren()
+        for i = 1 to meshChildren.count do
+        (
+            if (meshChildren[i].IsA(pyUsdSkel.BlendShape)) then
+            (
+                append foundBlendShapes meshChildren[i]
+            )
+        )
+        assert_equal 3 foundBlendShapes.count Message: "There should exist 3 BlendShapes"
+
+        -- check BlendShapes names
+        for i = 1 to foundBlendShapes.count do
+        (
+            assert_equal (meshPrimPath + "/Target_" + (i as string)) (foundBlendShapes[i].GetPath() as string)
+        )
+
+        local expectedOffset1 = #(#(4.439627, 4.439627, 5.560373), #(-0.4664812, 0.4664812, 9.533519), #(3.6491175, -3.6491175, 6.3508825), #(-6.426284, -6.426284, 3.5737162), #(4.2561393, 4.2561393, -2.7684174), #(-7.4031057, 7.4031057, -12.209317), #(0.40749073, -0.40749073, 8.777527), #(-5.428038, -5.428038, -6.284114))
+        local offset1 = (foundBlendShapes[1].GetAttribute("offsets")).Get()
+        for i = 1 to offset1.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal offset1[i][x] expectedOffset1[i][x] tolerance:0.001 message: "BlendShape offset1 didn't match"
+            )
+        )
+
+        local offset2 = (foundBlendShapes[2].GetAttribute("offsets")).Get()
+        for i = 1 to offset2.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal offset2[i][x] #(0,20.0,0)[x] tolerance:0.001 message: "BlendShape offset2 didn't match"
+            )
+        )
+
+        local offset3 = (foundBlendShapes[3].GetAttribute("offsets")).Get()
+        for i = 1 to offset3.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal (offset3[i][x]) (#(30.0,0,0)[x]) tolerance:0.001 message: "BlendShape offset3 didn't match"
+            )
+        )
+
+        local expectedDeltaNormals1 = #(#(-0.030527309, -0.18318819, 0.01739633), #(-0.25695634, 0.04700898, 0.034720957), #(-0.041669764, -0.17238171, 0.015851557), #(0.15065439, -0.35161147, 0.076055944), #(0.65152735, -0.44120553, -0.38286966), #(0.70589006, -0.55658096, -0.56189394), #(0.6662265, -0.46848, -0.41976827), #(0.6107727, -0.37267947, -0.30138236), #(0.2179837, 0.10576475, 0.39093027), #(-0.2583895, 0.98429745, 0.9659131), #(-0.07189513, 0.53415203, 0.88193923), #(0.3437027, 0.06096816, -0.009359415), #(-0.42478037, -0.03992137, 0.81702423), #(-0.07658225, 0.3623322, -0.12655029), #(-0.09399164, 0.20966579, 0.36768055), #(-1.5877967, -0.41301677, 0.69563794), #(0.23156409, -0.033403575, -0.10986113), #(0.24072152, -0.03506726, -0.104680054), #(0.23116723, -0.033334076, -0.11008506), #(0.21904086, -0.031312764, -0.11690244), #(0.009492993, -0.11602661, -0.07371334), #(0.0022616386, -0.06510757, -0.016709436), #(0.010827899, -0.12243896, -0.08091565), #(0.019511461, -0.15637314, -0.119120575))
+        local normals1 = (foundBlendShapes[1].GetAttribute("normalOffsets")).Get()
+        for i = 1 to normals1.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal normals1[i][x] expectedDeltaNormals1[i][x] tolerance:0.001 message: "BlendShape normals1 didn't match"
+            )
+        )
+
+        local normals2 = (foundBlendShapes[2].GetAttribute("normalOffsets")).Get()
+        for i = 1 to normals2.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal normals2[i][x] #(0.0,0.0,0.0)[x] tolerance:0.001 message: "BlendShape normals2 didn't match"
+            )
+        )
+
+        local normals3 = (foundBlendShapes[3].GetAttribute("normalOffsets")).Get()
+        for i = 1 to normals3.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal normals3[i][x] #(0.0,0.0,0.0)[x] tolerance:0.001 message: "BlendShape normals3 didn't match"
+            )
+        )
+
+        local blendShapeWeightsAttribute = animPrim.GetAttribute("blendShapeWeights")
+        local blendShapeWeightsTimeSamples = blendShapeWeightsAttribute.GetTimeSamples()
+        local expectedAnimatedWeights = #(#(0, 0, 0), #(0.028000003, 0, 0), #(0.104, 0, 0), #(0.216, 0, 0), #(0.35199997, 0, 0), #(0.5, 0, 0), #(0.648, 0, 0), #(0.7839999, 0, 0), #(0.89599997, 0, 0), #(0.97199994, 0, 0), #(1, 0, 0), #(0.97199994, 0.028000005, 0), #(0.89599997, 0.10400002, 0), #(0.78400004, 0.216, 0), #(0.64799994, 0.35200006, 0), #(0.5, 0.5, 0), #(0.35200006, 0.64799994, 0), #(0.21600004, 0.7839999, 0), #(0.10399991, 0.8960001, 0), #(0.027999997, 0.97199994, 0), #(0, 1, 0), #(0, 0.97199994, 0.028000008), #(0, 0.89599997, 0.10400003), #(0, 0.7839999, 0.21600007), #(0, 0.6479999, 0.3520001), #(0, 0.4999999, 0.50000006), #(0, 0.35199988, 0.6480001), #(0, 0.21599996, 0.78400004), #(0, 0.10399998, 0.8960001), #(0, 0.027999997, 0.97199994), #(0, 0, 1))
+
+        assert_equal blendShapeWeightsTimeSamples.count expectedAnimatedWeights.count message:"Didn't export the expected number of animation frames"
+
+        local counter = 1
+        for timeCode = 0 to 30 do (
+            local w = (blendShapeWeightsAttribute).Get(timeCode)
+            for x = 1 to 3 do 
+            (
+                assert_float_equal expectedAnimatedWeights[counter][x] w[x] tolerance:0.00001
+            )
+            counter = counter + 1
+        )
+    ),
+
+    function execute_progressive_morpher_properties_tests exportPath = 
+    (
+        local rangeStart = 0
+        local rangeEnd = 50
+        
+        animationRange = interval rangeStart rangeEnd
+        exportOptions.TimeMode = #animationRange
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- general variables
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Box001")
+        local boxPrim = stage.GetPrimAtPath(meshPrimPath)
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        -- check if mesh has the skel binding
+        local meshBindingApi = pyUsdSkel.BindingAPI.Get stage meshPrimPath
+        local meshSkelRel = meshBindingApi.GetSkeletonRel()
+        local meshSkelTargets = meshSkelRel.GetTargets()
+
+        -- check if there are any unexpected blendshapes
+        foundBlendShapes = #()
+        meshChildren = (boxPrim).GetChildren()
+        for i = 1 to meshChildren.count do
+        (
+            if (meshChildren[i].IsA(pyUsdSkel.BlendShape)) then
+            (
+                append foundBlendShapes meshChildren[i]
+            )
+        )
+        assert_equal 1 foundBlendShapes.count Message: "There should exist 1 BlendShapes"
+
+        -- check BlendShapes names
+        for i = 1 to foundBlendShapes.count do
+        (
+            assert_equal (meshPrimPath + "/Target_" + (i as string)) (foundBlendShapes[i].GetPath() as string)
+        )
+
+        local expectedOffset1 = #(#(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0), #(30.0,0.0,0.0))
+        local offset1 = (foundBlendShapes[1].GetAttribute("offsets")).Get()
+        for i = 1 to offset1.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal offset1[i][x] expectedOffset1[i][x] tolerance:0.001 message: "BlendShape offset1 didn't match"
+            )
+        )
+
+        local expectedInbetween1 = #(#(0, 0, 10), #(0, 0, 10), #(0, 0, 10), #(0, 0, 10), #(0, 0, 10), #(0, 0, 10), #(0, 0, 10), #(0, 0, 10))
+        local expectedInbetween2 = #(#(0, 20, 0), #(0, 20, 0), #(0, 20, 0), #(0, 20, 0), #(0, 20, 0), #(0, 20, 0), #(0, 20, 0), #(0, 20, 0))
+        local inbetweens1 = (foundBlendShapes[1].GetAttribute("inbetweens:Target_1")).Get()
+        local inbetweens2 = (foundBlendShapes[1].GetAttribute("inbetweens:_2")).Get()
+
+        for i = 1 to expectedInbetween1.count do 
+        (
+            for x = 1 to 3 do 
+            (
+                assert_float_equal expectedInbetween1[i][x] inbetweens1[i][x] tolerance:0.001 message: "BlendShape inbetween1 didn't match"
+                assert_float_equal expectedInbetween2[i][x] inbetweens2[i][x] tolerance:0.001 message: "BlendShape inbetween2 didn't match"
+            )
+        )
+    ),
+
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function export_morpher_can_export_conditions = 
+    (
+        resetMaxFileAndSetupUnits()
+        myCreatedNodes = createMorpherTestScene()
+
+        exportOptions.Meshes = false
+        local exportPath = output_prefix + "export_morpher_can_export_conditions_without_meshes.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        assert_false (pyUsd.Prim.IsValid skelPrim) Message: "Skeleton prim shouldn't have been created with Meshes disabled"
+        assert_false (pyUsd.Prim.IsValid animPrim) Message: "SkelAnimation prim shouldn't have been created with Meshes disabled"
+
+        exportOptions.Meshes = true
+        exportPath = output_prefix + "export_morpher_can_export_conditions_with_meshes.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        stage = pyUsd.Stage.Open(exportPath)
+        skelRootPath = "/root"
+        skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        assert_true (pyUsd.Prim.IsValid skelPrim) Message: "Skeleton prim should have been created with Meshes enabled"
+        assert_true (pyUsd.Prim.IsValid animPrim) Message: "SkelAnimation prim should have been created with Meshes enabled"
+    ),
+
+    function export_morpher_properties_with_nodes = 
+    (
+        resetMaxFileAndSetupUnits()
+        local exportPath = output_prefix + "export_morpher_properties_with_nodes.usda"
+        myCreatedNodes = createMorpherTestScene()
+
+        execute_morpher_properties_tests exportPath false
+    ),
+
+    function export_morpher_current_frame = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        exportOptions.TimeMode = #current
+        local exportPath = output_prefix + "export_morpher_current_frame.usda"
+        myCreatedNodes = createMorpherTestScene()
+        slidertime = 2
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        local blendShapeWeightsAttribute = animPrim.GetAttribute("blendShapeWeights")
+        local expectedAnimatedWeights = #(0.104, 0, 0)
+
+        -- we exported the scene at frame 2. It's expected that weight to be the morpher default weight
+        local timeCode = 0
+        local w = (blendShapeWeightsAttribute).Get(timeCode)
+        for x = 1 to 3 do 
+        (
+            assert_float_equal expectedAnimatedWeights[x] w[x] tolerance:0.00001
+        )
+    ),
+
+    function export_morpher_properties_without_nodes = 
+    (
+        resetMaxFileAndSetupUnits()
+        local exportPath = output_prefix + "export_morpher_properties_without_nodes.usda"
+        myCreatedNodes = createMorpherTestScene()
+
+        -- delete the morph targets from the scene
+        for i = 2 to myCreatedNodes.count do
+        (
+            delete myCreatedNodes[i]
+        )
+
+        execute_morpher_properties_tests exportPath true
+    ),
+
+    function export_progressive_morpher = 
+    (
+        resetMaxFileAndSetupUnits()
+        local exportPath = output_prefix + "export_progressive_morpher.usda"
+        myCreatedNodes = createProgressiveMorpherTestScene()
+        assert_equal 4 (objects.count)
+        execute_progressive_morpher_properties_tests exportPath
+        -- make sure that we didn't leave any extra nodes in the scene after exporting morphers
+        assert_equal 4 (objects.count)
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        export_morpher_can_export_conditions,
+        export_morpher_properties_with_nodes,
+        export_morpher_current_frame,
+        export_morpher_properties_without_nodes,
+        export_progressive_morpher
+    )
+)
+
+runUsdTestFixture export_morphers_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_node_list_test.ms b/src/Tests/Integration/export_node_list_test.ms
new file mode 100644
index 0000000..221677e
--- /dev/null
+++ b/src/Tests/Integration/export_node_list_test.ms
@@ -0,0 +1,182 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyShade = python.import("pxr.UsdShade")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_NODE_LIST_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_node_list_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo"
+        exportOptions.AllowNestedGprims = true
+    ),
+    
+    function test_export_node_list = (
+        /* Build a hierarchy to test various cases with : 
+
+                           |-- box3A  |-- box4A    
+               |-- box2A --|          |
+        box1 --|           |-- box3B--|-- box4B
+               |-- box2B              |
+                                      |-- box4C         
+        */
+
+        box1 = box name:"box1"
+        box2A = box name:"box2A" parent:box1
+        box2B = box name:"box2B" parent:box1
+        box3A = box name:"box3A" parent:box2A
+        box3B = box name:"box3B" parent:box2A
+        box4A = box name:"box4A" parent:box3B
+        box4B = box name:"box4B" parent:box3B
+        box4C = box name:"box4C" parent:box3B
+
+        -- test nodeList argument option. When a valid non-empty list is provided to 'nodeList', contentSource:#nodeList must be set
+        local nodeToExport = #(box1, box2A)
+        local exportPath = (output_prefix + "wrong_args_nodelist_not_exported.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions nodeList:nodeToExport
+        assert_equal 0 (getfiles exportPath).count message:"Stage should not have been created when providing a node list but no contentSource:#nodeList argument"
+
+        -- test contentSource argument option. When contentSource:#nodeList a list must be valid and not empty
+        nodeToExport = #()
+        exportPath = (output_prefix + "wrong_args_contentsource_not_exported.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList  nodeList:nodeToExport
+        assert_equal 0 (getfiles exportPath).count message:"Stage should not have been created when providing contentSource:#nodeList, but not valid/non-empty nodeList"
+
+        -- Test that the children of nodes in the list of nodes to export are not exported.
+        nodeToExport = #(box1)
+        exportPath = (output_prefix + "children_not_exported.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodeToExport
+
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported."
+        local bindingAPI = pyShade.MaterialBindingAPI(box1Prim)
+        mtlSubsets = bindingAPI.GetMaterialBindSubsets()
+        numberOfChildren = mtlSubsets.count - (box1Prim.GetAllChildren()).count
+        assert_equal numberOfChildren 0 message:"The children of the node box1 should not have been exported."
+
+        -- Test that nodes in the list of nodes to export that do not have their parent in that list too are exported at the root level.
+        nodeToExport = #(box2A)
+        exportPath = (output_prefix + "parent_not_in_node_list.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodeToExport
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        box2APrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2A.name)
+        assert_true (pyUsd.Prim.IsValid(box2APrim)) message:"box2A was not properly exported to the expected path."
+
+        -- Test complex list of nodes to export.
+        nodeToExport = #(box1,-- Should be exported at /box1
+                        box3B, -- Should be exported at /box3B because /Box2A is not in the list of nodes to export
+                        box4A, -- Should be exported at /box3B/box4A
+                        box4C) -- Should be exported at /box3B/box4C
+
+        exportPath = (output_prefix + "multiselection.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodeToExport
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        
+        box3BPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box3B.name)
+        assert_true (pyUsd.Prim.IsValid(box3BPrim)) message:"box3B was not properly exported to the expected path."
+        
+        box4APrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box3B.name + "/" + box4A.name)
+        assert_true (pyUsd.Prim.IsValid(box4APrim)) message:"box4A was not properly exported to the expected path."
+
+        -- Make sure the child not in the list of node to export was not exported 
+        box4BPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box3B.name + "/" + box4B.name)
+        assert_false (pyUsd.Prim.IsValid(box4BPrim)) message:"box4B was not added to the list of nodes to export and should not have been exported."
+        
+        box4CPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box3B.name + "/" + box4C.name)
+        assert_true (pyUsd.Prim.IsValid(box4CPrim)) message:"box4C was not properly exported to the expected path."
+    ),
+    
+    function test_name_conflicts = (
+        /*
+        By design, when exporting a node list, nodes that have their parents not part of the list will export at the 
+        root level in the USD file. Therefor, node names that would not conflict when going to USD if the whole scene was 
+        exported will now conflict. In the example bellow, both "boxA" nodes will attempt to export at the USD path /boxA
+        if box1 and box2 are not part of the export list.
+        
+               |-- box1 --|--boxA
+        root --|           
+               |-- box2 --|--boxA
+        
+        This test makes sure that this conflict is handled.
+        */
+        
+        -- Test no name conflict.
+        box1 = box()
+        box1.name = "box1"
+        box2 = box()
+        box2.name = "box2"
+        boxA1 = box()
+        boxA1.name = "boxA"
+        boxA1.parent = box1
+        boxA2 = box()
+        boxA2.name = "boxA"
+        boxA2.parent = box2
+        
+        exportPath = (output_prefix + "no_name_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(box1,box2,boxA1,boxA2)
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        box2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        boxA1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name + "/" + boxA1.name)
+        assert_true (pyUsd.Prim.IsValid(boxA1Prim)) message:"boxA1 was not properly exported to the expected path."
+        boxA2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2.name + "/" + boxA2.name)
+        assert_true (pyUsd.Prim.IsValid(boxA2Prim)) message:"boxA2 was not properly exported to the expected path."
+        
+        -- Test with name conflict.
+        exportPath = (output_prefix + "name_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:#(boxA1,boxA2)
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        boxA1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + boxA1.name)
+        assert_true (pyUsd.Prim.IsValid(boxA1Prim)) message:"boxA1 was not properly exported to the expected path."
+        boxA2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + boxA2.name + "1") -- renamed because of conflict at the root level.
+        assert_true (pyUsd.Prim.IsValid(boxA2Prim)) message:"boxA2 was not properly exported to the expected path."
+    ),    
+        
+    function teardown = (
+    ),
+
+    Tests = #(test_export_node_list , test_name_conflicts)
+)
+
+runUsdTestFixture export_node_list_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_node_name_test.ms b/src/Tests/Integration/export_node_name_test.ms
new file mode 100644
index 0000000..3f6ab02
--- /dev/null
+++ b/src/Tests/Integration/export_node_name_test.ms
@@ -0,0 +1,108 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_NODE_NAME_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_node_name_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+    
+    function test_node_name_conflict = (
+        -- Simple node name conflict.
+        local box1 = box()
+        box1.name = "name"
+        local box2 = box()
+        box2.name = "name"
+        local exportPath = (output_prefix + "simple_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath("/name")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not exported to the expected path"
+        box2Prim = stage.GetPrimAtPath("/name1") -- was renamed because of the name conflict
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"box2 was not exported to the expected path"    
+            
+        -- Name conflict where the next generated name would also conflict.
+        local dummyNode = dummy()
+        dummyNode.name = "name1" -- box2 should not "steal" this name when being renamed.
+        
+        local exportPath = (output_prefix + "chain_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+            
+        box1Prim = stage.GetPrimAtPath("/name")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not exported to the expected path"
+        xformPrim = stage.GetPrimAtPath("/name1")
+        assert_true (pyUsd.Prim.IsValid(xformPrim)) message:"dummyNode was not exported to the expected path."
+        assert_true (xformPrim.IsA(pyUsdGeom.Xform)) message:("dummyNode should have been exported to an Xform prim")
+        box2prim = stage.GetPrimAtPath("/name2")
+        assert_true (pyUsd.Prim.IsValid(box2prim)) message:"box2 was not exported to the expected path."
+        assert_true (box2prim.IsA(pyUsdGeom.Mesh)) message:("box2 should have been exported to an Mesh prim")
+
+        -- Tests that reusing the same name at different levels in the hierarchy is supported.
+        resetMaxFile #noprompt
+        local level1 = box()
+        level1.name = "name"
+        local level2 = box()
+        level2.name = "name"
+        level2.parent = level1
+        local level3 = box()
+        level3.name = "name"
+        level3.parent = level2
+
+        local exportPath = (output_prefix + "reuse_across_hierarchy.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        level3Prim = stage.GetPrimAtPath("/name/name/name") 
+        assert_true (pyUsd.Prim.IsValid(level3Prim)) message:"level3 was not exported to the expected path"
+    ),
+
+    function test_invalid_usd_node_name = (
+        -- Makes sure that Max node names that are not valid in USD are transformed to be valid upon export.
+        local box1 = box()
+        box1.name = "box:1"
+        local exportPath = (output_prefix + "simple_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        box1Prim = stage.GetPrimAtPath("/box_1")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not exported to the expected path"
+    ),
+        
+    function teardown = (
+    ),
+    Tests = #(test_node_name_conflict, test_invalid_usd_node_name)
+)
+
+runUsdTestFixture export_node_name_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_options_test.ms b/src/Tests/Integration/export_options_test.ms
new file mode 100644
index 0000000..e2a369a
--- /dev/null
+++ b/src/Tests/Integration/export_options_test.ms
@@ -0,0 +1,1929 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdShade = python.import("pxr.UsdShade")
+pySdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+pyUsdSkel = python.import("pxr.UsdSkel")
+
+filename_prefix = "EXPORT_OPTIONS_TEST_"
+output_prefix = pathConfig.appendPath (getDir #temp) ("/" + filename_prefix)
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_options_test
+(  
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function test_ui_options_accessors = (
+        -- Make sure UI options are properly set by default
+        local uiExportOptions = USDExporter.UIOptions
+        uiExportOptions.Reset()
+
+        assert_true uiExportOptions.Meshes message:"Meshes property was not properly initialized to defaults (true)."
+        assert_true uiExportOptions.Shapes message:"Shapes property was not properly initialized to defaults (true)."
+        assert_true uiExportOptions.Lights message:"Lights property was not properly initialized to defaults (true)."
+        assert_true uiExportOptions.Cameras message:"Cameras property was not properly initialized to defaults (true)."
+        assert_true uiExportOptions.Materials message:"Materials property was not properly initialized to defaults (true)."
+        assert_false uiExportOptions.Skin message:"Skin property was not properly initialized to defaults (false)."
+        assert_false uiExportOptions.Morpher message:"Morpher property was not properly initialized to defaults (false)."
+        assert_equal "Bones" uiExportOptions.BonesPrimName message:"BonesPrimName property was not properly initialized to defaults (Bones)."
+        assert_equal "Animations" uiExportOptions.AnimationsPrimName message:"AnimationsPrimName property was not properly initialized to defaults (Animations)."
+        assert_equal "useRegistry" uiExportOptions.ShadingMode message:"ShadingMode was now properly initialized to defaults (\"useRegistry\")"
+        -- FIXME : Account for the maxToA export plugin maybe being installed. We do not have a way know for sure if a version
+        -- of maxToA with USD support will be installed in the 3dsMax build running in the pipeline.
+        local matTargets = (uiExportOptions.AvailableMaterialTargets() as string)
+        assert_true ((#("MaterialX", "UsdPreviewSurface") as string) == matTargets or (#("Arnold", "MaterialX", "UsdPreviewSurface") as string) == matTargets) message:"Current list of available material targets is invalid)."
+        assert_equal (#("UsdPreviewSurface") as string) (uiExportOptions.AllMaterialTargets as string) message:"Selected material target was not properly initialized to default (UsdPreviewSurface)."
+        assert_true uiExportOptions.HiddenObjects message:"HiddenObjects property was not properly initialized to defaults (true)."
+        assert_false uiExportOptions.UseUSDVisibility message:"UseUSDVisibility property was not properly initialized to defaults (false)."
+        assert_equal #binary uiExportOptions.FileFormat message:"File format property was not properly initialized to defaults (#binary). "
+        assert_equal #z uiExportOptions.UpAxis message:"UpAxis property was not properly initialized to defaults (#z)."
+        assert_equal ((GetDir #temp) + "\\MaxUsdExport.log") uiExportOptions.LogPath message:"The LogPath property was not properly initialized."
+        assert_equal #off uiExportOptions.LogLevel message:"The LogLevel property was not properly initialized."
+        assert_false uiExportOptions.PreserveEdgeOrientation message:"The PreserveEdgeOrientation property was not properly initialized to default (false)."
+        assert_equal #asPrimvar uiExportOptions.Normals message:"Normals property was not properly initialized to defaults (#asPrimvar)."
+        assert_equal #fromScene uiExportOptions.MeshFormat message:"MeshFormat property was not properly initialized to defaults (#fromScene)."
+        assert_equal #current uiExportOptions.TimeMode message:"The TimeMode property was not properly initialized to defaults (#current)."
+        assert_equal 0.0 uiExportOptions.StartFrame message:"The StartFrame property was not properly initialized to defaults (0.0)."
+        assert_equal 0.0 uiExportOptions.EndFrame message:"The EndFrame property was not properly initialized to defaults (0.0)."
+        assert_equal 1.0 uiExportOptions.SamplesPerFrame message:"The SamplesPerFrame property was not properly initialized to defaults (1.0)."
+        assert_equal "/root" uiExportOptions.RootPrimPath message:"The RootPrimPath property was not properly initialized to defaults (\"/root\")."
+        assert_false uiExportOptions.OpenInUsdview message:"The OpenInUsdview property was not properly initialized to default (false)."
+        assert_true uiExportOptions.UsdStagesAsReferences message:"The UsdStagesAsReferences property was not properly initialized to default (true)."
+        assert_equal false uiExportOptions.AllowNestedGprims message:"The AllowNestedGprims property was not properly initialized to defaults (false)."
+        assert_equal (#() as string) (uiExportOptions.ContextNames as string) message:"The ContextNames property was not properly initialized."
+        assert_equal (#() as string) (uiExportOptions.ChaserNames as string) message:"The ChaserNames property was not properly initialized."
+        maxver = maxversion()
+        if maxver[1] < 27000 or (maxver[1] == 27000 and maxver[5] == 0) then (
+            assert_equal ("Dictionary #string " as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly initialized."
+        )
+        else (
+            assert_equal ("(Dictionary #string )" as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly initialized."
+        )
+        assert_equal "<filename>_mtl.usda" uiExportOptions.MaterialLayerPath message:"The MaterialLayerPath property was not properly initialized."
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            assert_equal #asVariantSets uiExportOptions.MtlSwitcherExportStyle message:"Material Switcher export style property was not properly initialized to defaults (#asVariantSets). "
+        )
+        assert_true uiExportOptions.UseProgressBar message:"UseProgressBar property was not properly initialized to defaults (true)."
+        assert_true uiExportOptions.UseLastResortUSDPreviewSurfaceWriter message:"UseLastResortUSDPreviewSurfaceWriter property was not properly initialized to defaults (true)."
+
+        -- Create new options and set them all to non-default values
+        local exportOptions = USDExporter.CreateOptions()
+        local mtlPath = (output_prefix + "mtl_path.usd")
+
+        exportOptions.Meshes = false
+        exportOptions.Shapes = false
+        exportOptions.Lights = false
+        exportOptions.Cameras = false
+        exportOptions.Materials = false
+        exportOptions.Skin = true
+        exportOptions.Morpher = true
+        exportOptions.BonesPrimName = "TestBones"
+        exportOptions.AnimationsPrimName = "TestAnimations"
+        exportOptions.AllMaterialTargets = #()
+        exportOptions.HiddenObjects = false
+        exportOptions.UseUSDVisibility = true
+        exportOptions.FileFormat = #ascii
+        exportOptions.UpAxis = #y
+        exportOptions.LogLevel = #info
+        exportOptions.LogPath = (output_prefix + "log_path.txt")
+        exportOptions.PreserveEdgeOrientation = true
+        exportOptions.Normals = #none
+        exportOptions.MeshFormat = #triMesh
+        exportOptions.TimeMode = #explicit
+        exportOptions.StartFrame = 10.5
+        exportOptions.EndFrame = 20.5
+        exportOptions.SamplesPerFrame = 3.5
+        exportOptions.RootPrimPath = "/foo/bar"
+        exportOptions.OpenInUsdview = true
+        exportOptions.UsdStagesAsReferences = false
+        exportOptions.AllowNestedGprims = true
+        exportOptions.ContextNames = #("foo", "bar")
+        exportOptions.ChaserNames = #("baz", "qux")
+        exportOptions.AllChaserArgs = #("chaser1", "param", "val")
+        exportOptions.MaterialLayerPath = mtlPath
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            exportOptions.MtlSwitcherExportStyle = #activeMaterial
+        )
+        exportOptions.UseProgressBar = false
+        exportOptions.UseLastResortUSDPreviewSurfaceWriter = false
+        
+        -- Test the UI options setter
+        USDExporter.UIOptions = exportOptions
+
+        -- The new global options should have been updated
+        uiExportOptions = USDExporter.UIOptions
+
+        assert_false uiExportOptions.Meshes message:"Meshes property was not properly set to false."
+        assert_false uiExportOptions.Shapes message:"Shapes property was not properly set to false."
+        assert_false uiExportOptions.Lights message:"Lights property was not properly set to false."
+        assert_false uiExportOptions.Cameras message:"Cameras property was not properly set to false."
+        assert_false uiExportOptions.Materials message:"Materials property was not properly set to false."
+        assert_true uiExportOptions.Skin message:"Skin property was not properly set to true."
+        assert_true uiExportOptions.Morpher message:"Morpher property was not properly set to true."
+        assert_equal "TestBones" uiExportOptions.BonesPrimName message:"BonesPrimName was not properly set to 'TestBones'."
+        assert_equal "TestAnimations" uiExportOptions.AnimationsPrimName message:"AnimationsPrimName was not properly set to 'TestAnimations'."
+        assert_equal "none" uiExportOptions.ShadingMode message:"ShadingMode was now properly set to 'none' when no material target is selected."
+        assert_true ((#("MaterialX", "UsdPreviewSurface") as string) == matTargets or (#("Arnold", "MaterialX", "UsdPreviewSurface") as string) == matTargets)
+        assert_equal (#() as string) (uiExportOptions.AllMaterialTargets as string) message:"Selected material target should be set to 'none'."
+        assert_false uiExportOptions.HiddenObjects message:"HiddenObjects property was not properly set to false."
+        assert_true uiExportOptions.UseUSDVisibility message:"UseUSDVisibility property was not properly set to true."
+        assert_equal #ascii uiExportOptions.FileFormat message:"File format property was not properly set to #ascii. "
+        assert_equal #y uiExportOptions.UpAxis message:"UpAxis property was not properly set to #y)."
+        assert_equal (output_prefix + "log_path.txt") uiExportOptions.LogPath message:"The LogPath property was not properly set."
+        assert_equal #info uiExportOptions.LogLevel message:"The LogLevel property was not properly set."
+        assert_true uiExportOptions.PreserveEdgeOrientation message:"The PreserveEdgeOrientation property was not properly set to true."
+        assert_equal #none uiExportOptions.Normals message:"The Normals property was not properly set to #none."
+        assert_equal #triMesh uiExportOptions.MeshFormat message:"The MeshFormat property was not properly set to #triMesh."
+        assert_equal #explicit uiExportOptions.TimeMode message:"The TimeMode property was not properly set to #explicit."
+        assert_equal 10.5 uiExportOptions.StartFrame message:"The StartFrame property was not properly set to 10.5."
+        assert_equal 20.5 uiExportOptions.EndFrame message:"The EndFrame property was not properly set to 20.5."
+        assert_equal 3.5 uiExportOptions.SamplesPerFrame message:"The SamplesPerFrame property was not properly set to 3.5."
+        assert_equal "/foo/bar" uiExportOptions.RootPrimPath message:"The RootPrimPath property was not properly set to /foo/bar."
+        assert_true uiExportOptions.OpenInUsdview message:"The OpenInUsdview property was not properly set to true."
+        assert_false uiExportOptions.UsdStagesAsReferences message:"The UsdStagesAsReferences property was not properly set to false."
+        assert_true uiExportOptions.AllowNestedGprims message:"The AllowNestedGprims property was not properly set to true."
+        assert_equal (#("bar", "foo") as string) (uiExportOptions.ContextNames as string) message:"The ContextNames property was not properly set to foo,bar."
+        assert_equal (#("baz", "qux") as string) (uiExportOptions.ChaserNames as string) message:"The ChaserNames property was not properly baz,qux."
+        if maxver[1] < 27000 or (maxver[1] == 27000 and maxver[5] == 0) then (
+            assert_equal ("Dictionary #string (DataPair \"chaser1\" Dictionary #string (DataPair \"param\" \"val\") ) " as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly set to {chaser1:{param = val}."
+        )
+        else (
+            assert_equal ("(Dictionary #string (DataPair \"chaser1\" (Dictionary #string (DataPair \"param\" \"val\") )) )" as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly set to {chaser1:{param = val}."
+        )
+        assert_equal mtlPath uiExportOptions.MaterialLayerPath message:"The MaterialLayerPath property was not properly set."
+        
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            assert_equal #activeMaterial uiExportOptions.MtlSwitcherExportStyle message:"Material Switcher export style property was not properly to #activeMaterial."
+        )
+        assert_false uiExportOptions.UseProgressBar message:"UseProgressBar property was not properly set to false."
+        assert_false uiExportOptions.UseLastResortUSDPreviewSurfaceWriter message:"UseLastResortUSDPreviewSurfaceWriter property was not properly set to false."
+
+        -- Reset & test
+
+        uiExportOptions.Reset()
+
+        assert_true uiExportOptions.Meshes message:"Meshes property was not properly reset to defaults (true)."
+        assert_true uiExportOptions.Shapes message:"Shapes property was not properly reset to defaults (true)."
+        assert_true uiExportOptions.Lights message:"Lights property was not properly reset to defaults (true)."
+        assert_true uiExportOptions.Cameras message:"Cameras property was not properly reset to defaults (true)."
+        assert_true uiExportOptions.Materials message:"Materials property was not properly reset to defaults (true)."
+        assert_false uiExportOptions.Skin message:"Skin property was not properly reset to defaults (false)."
+        assert_false uiExportOptions.Morpher message:"Morpher property was not properly reset to defaults (false)."
+        assert_equal "Bones" uiExportOptions.BonesPrimName message:"BonesPrimName property was not properly reset to defaults (Bones)."
+        assert_equal "Animations" uiExportOptions.AnimationsPrimName message:"AnimationsPrimName property was not properly reset to defaults (Animations)."
+        assert_equal "useRegistry" uiExportOptions.ShadingMode message:"ShadingMode was now properly initialized to defaults (\"useRegistry\")"
+        assert_true ((#("MaterialX", "UsdPreviewSurface") as string) == matTargets or (#("Arnold", "MaterialX", "UsdPreviewSurface") as string) == matTargets) message:"Unexpected list of available material targets."
+        assert_equal (#("UsdPreviewSurface") as string) (uiExportOptions.AllMaterialTargets as string) message:"Selected material target was not properly initialized to default (UsdPreviewSurface)."
+        assert_true uiExportOptions.HiddenObjects message:"HiddenObjects property was not properly reset to defaults (true)."
+        assert_false uiExportOptions.UseUSDVisibility message:"UseUSDVisibility property was not properly reset to defaults (false)."
+        assert_equal #binary uiExportOptions.FileFormat message:"File format property was not properly reset to defaults (#binary). "
+        assert_equal #z uiExportOptions.UpAxis message:"UpAxis property was not properly reset to defaults (#z)."
+        assert_equal ((GetDir #temp) + "\\MaxUsdExport.log") uiExportOptions.LogPath message:"The LogPath property was not properly reset."
+        assert_equal #off uiExportOptions.LogLevel message:"The LogLevel property was not properly reset."
+        assert_false uiExportOptions.PreserveEdgeOrientation message:"The PreserveEdgeOrientation property was not properly reset to default (false)."
+        assert_equal #asPrimvar uiExportOptions.Normals message:"Normals property was not properly reset to defaults (#asPrimvar)."
+        assert_equal #fromScene uiExportOptions.MeshFormat message:"MeshFormat property was not properly reset to defaults (#fromScene)."
+        assert_equal #current uiExportOptions.TimeMode message:"The TimeMode property was not properly reset to defaults (#current)."
+        assert_equal 0.0 uiExportOptions.StartFrame message:"The StartFrame property was not properly reset to defaults (0.0)."
+        assert_equal 0.0 uiExportOptions.EndFrame message:"The EndFrame property was not properly reset to defaults (0.0)."
+        assert_equal 1.0 uiExportOptions.SamplesPerFrame message:"The SamplesPerFrame property was not properly reset to defaults (1.0)."
+        assert_equal "/root" uiExportOptions.RootPrimPath message:"The RootPrimPath property was not properly reset to defaults (\"/root\")."
+        assert_false uiExportOptions.OpenInUsdview message:"The OpenInUsdview property was not properly reset to default (false)."
+        assert_true uiExportOptions.UsdStagesAsReferences message:"The UsdStagesAsReferences property was not properly reset to true."
+        assert_false uiExportOptions.AllowNestedGprims message:"The AllowNestedGprims property was not properly reset to false."
+        assert_equal (#() as string) (uiExportOptions.ContextNames as string) message:"The ContextNames property was not properly reset."
+        assert_equal (#() as string) (uiExportOptions.ChaserNames as string) message:"The ChaserNames property was not properly reset."
+        if maxver[1] < 27000 or (maxver[1] == 27000 and maxver[5] == 0) then (
+            assert_equal ("Dictionary #string " as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly reset."
+        )
+        else (
+            assert_equal ("(Dictionary #string )" as string) (uiExportOptions.AllChaserArgs as string) message:"The AllChaserArgs property was not properly reset."
+        )
+        assert_equal "<filename>_mtl.usda" uiExportOptions.MaterialLayerPath message:"The MaterialLayerPath property was not properly reset."
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            assert_equal #asVariantSets uiExportOptions.MtlSwitcherExportStyle message:"Material Switcher export style property was not properly reset to default (#asVariantSets)."
+        )
+        assert_true uiExportOptions.UseProgressBar message:"UseProgressBar property was not properly reset to defaults (true)."
+        assert_true uiExportOptions.UseLastResortUSDPreviewSurfaceWriter message:"UseLastResortUSDPreviewSurfaceWriter property was not properly reset to default (true)."
+    ),
+    
+    -- on top of the classic material option settings
+    -- verify the consequences of settings some options on other options
+    function test_material_options_ripple = (
+        local uiExportOptions = USDExporter.UIOptions
+        uiExportOptions.Reset()
+
+        assert_true uiExportOptions.Materials message:"Materials property was not properly reset to defaults (true)."
+        assert_equal "useRegistry" uiExportOptions.ShadingMode message:"ShadingMode was now properly initialized to defaults (\"useRegistry\")"
+
+        uiExportOptions.ShadingMode = "none"
+        assert_false uiExportOptions.Materials message:"Materials property was not properly set to false when ShadingMode is set to 'none'."
+        assert_equal "none" uiExportOptions.ShadingMode message:"ShadingMode was now properly set to 'none' when specified."
+
+        uiExportOptions.Reset()
+        assert_true uiExportOptions.Materials message:"Materials property was not properly reset to defaults (true)."
+        assert_equal "useRegistry" uiExportOptions.ShadingMode message:"ShadingMode was now properly initialized to defaults (\"useRegistry\")"
+
+        uiExportOptions.ShadingMode = "none"
+        uiExportOptions.Materials = true
+        assert_true uiExportOptions.Materials message:"Materials property was not properly set to true."
+        assert_equal "useRegistry" uiExportOptions.ShadingMode message:"ShadingMode was now properly set back 'useRegistry' when materials need to be exported but no ShadingMode was set."
+
+    ),
+    
+    function test_export_meshes_option = (
+        exportPath = output_prefix + "export_meshes.usd"
+        
+        -- Create a teapot and export it.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.Meshes = true
+        exportOptions.RootPrimPath = "/"
+        assert_true exportOptions.Meshes message:"Meshes property could not be set to true."
+        teapot()    
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+
+        -- Reimport to make sure we get a teapot.
+        USDImporter.ImportFile exportPath
+        assert_equal 1 $objects.count message:"Unexpected object count with Meshes = true"
+        
+        -- Now with Meshes off...
+        resetmaxfile #noprompt
+        exportOptions.Meshes = false
+        assert_false exportOptions.Meshes message:"Meshes property could not be set to false."
+        teapot()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+        
+        USDImporter.ImportFile exportPath
+        assert_equal 0 $objects.count message:"Unexpected object count with Meshes = false"
+    ),
+    
+    function test_export_shapes_option = (
+        -- Create a rectangle shape and export it...
+        local rectNode = rectangle name:"rectangle"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        
+        -- Test with Shapes ON, and disabled in VP -> should export as a UsdGeomCurve.
+        exportPath = output_prefix + "export_shapes_on.usd"
+        rectNode.render_displayRenderMesh = false
+        exportOptions.Shapes = true
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectanglePrim = stage.GetPrimAtPath("/rectangle")
+        assert_true (pyUsd.Prim.IsValid(rectanglePrim)) message:"The rectangle was not exported to a USD prim as expected."
+        assert_true (rectanglePrim.IsA(pyUsdGeom.BasisCurves)) message:"The rectangle prim is not a curve."
+        
+        -- Test with Shapes ON, and enabled in VP -> should export as a UsdGeomMesh.
+        exportPath = output_prefix + "export_shapes_on_vp_mesh.usd"
+        rectNode.render_displayRenderMesh = true
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectanglePrim = stage.GetPrimAtPath("/rectangle")
+        assert_true (pyUsd.Prim.IsValid(rectanglePrim)) message:"The rectangle was not exported to a USD prim as expected."
+        assert_true (rectanglePrim.IsA(pyUsdGeom.Mesh)) message:"The rectangle prim should be a Mesh, as the shape is enabled in the viewport."
+        
+        -- Test with Shapes OFF and disabled in VP -> should not export.
+        exportPath = output_prefix + "export_shapes_off.usd"
+        rectNode.render_displayRenderMesh = false
+        exportOptions.Shapes = false
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectanglePrim = stage.GetPrimAtPath("/rectangle")
+        assert_false (pyUsd.Prim.IsValid(rectanglePrim)) message:"The rectangle was not exported to a USD prim as expected."
+            
+        -- Test with Shapes OFF, and enabled in VP -> should not export.
+        exportPath = output_prefix + "export_shapes_off_vp_mesh.usd"
+        rectNode.render_displayRenderMesh = true
+        exportOptions.Shapes = false
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectanglePrim = stage.GetPrimAtPath("/rectangle")
+        assert_false (pyUsd.Prim.IsValid(rectanglePrim)) message:"The rectangle was not exported to a USD prim as expected."
+    ),
+    
+    function test_export_lights_option = (
+        exportPath = output_prefix + "export_lights.usd"
+        
+        -- Create a light and export it.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.Lights = true
+        assert_true exportOptions.Lights message:"Lights property could not be set to true."
+        free_light()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+
+        -- Reimport to make sure we get a teapot.
+        USDImporter.ImportFile exportPath
+        assert_equal 1 $lights.count message:"Unexpected lights count with Lights = true"
+        
+        -- Now with Lights off...
+        resetmaxfile #noprompt
+        exportOptions.Lights = false
+        assert_false exportOptions.Lights message:"Lights property could not be set to false."
+        free_light()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+        
+        USDImporter.ImportFile exportPath
+        assert_equal 0 $lights.count message:"Unexpected object count with Lights = false"
+    ),
+    
+    function test_export_cameras_option = (
+        exportPath = output_prefix + "export_cameras.usd"
+        
+        -- Create a cameras and export it.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.Cameras = true
+        assert_true exportOptions.Cameras message:"Cameras property could not be set to true."
+        freecamera()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+        
+        -- Reimport to make sure we get a camera.
+        USDImporter.ImportFile exportPath
+        assert_equal 1 $cameras.count message:"Unexpected camera count with Cameras = true"
+        
+        -- Now with Cameras off...
+        resetmaxfile #noprompt
+        exportOptions.Cameras = false
+        assert_false exportOptions.Cameras message:"Cameras property could not be set to false."
+        freecamera()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        resetmaxfile #noprompt
+        
+        USDImporter.ImportFile exportPath
+        assert_equal 0 $cameras.count message:"Unexpected camera count with Cameras = false"
+    ),
+
+    function test_export_skin_option = (
+        exportName = "export_skin"
+        exportPath = output_prefix + exportName + ".usda"
+        noExportPath = output_prefix + "export_no_skin.usda"
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.Skin = true
+        exportOptions.RootPrimPath = "/root"
+        assert_true exportOptions.Skin message:"Skin property could not be set to true."
+        
+        exportOptions.BonesPrimName = "TestSkel"
+        exportOptions.AnimationsPrimName = "TestAnim"
+        assert_equal "TestSkel" exportOptions.BonesPrimName message:"The BonesPrimName property could not be set to correct value (TestSkel)."
+        assert_equal "TestAnim" exportOptions.AnimationsPrimName message:"The AnimationsPrimName property could not be set to correct value (TestAnim)."
+
+        -- bones won't be exported as UsdSkel if they aren't being used by a skin modifier
+        local b = bonesys.createbone [0,0,0] [0,1,0] [0,0,1]
+        local char = Cylinder radius:6 height:36 heightsegs:30 pos:[0,0,0] isSelected:on
+        local sk = skin()
+        addModifier char sk
+        skinOps.addbone sk b 0 node:char
+
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPrim = stage.GetPrimAtPath("/root")
+        local skelPrim = stage.GetPrimAtPath("/root/" + exportOptions.BonesPrimName)
+        local animPrim = stage.GetPrimAtPath("/root/" + exportOptions.BonesPrimName + "/" + exportOptions.AnimationsPrimName)
+
+        assert_true (skelRootPrim.IsA(pyUsdSkel.Root)) message:"The root prim was not exported to a USD SkelRoot prim as expected."
+        assert_true (skelPrim.IsA(pyUsdSkel.Skeleton)) message:"The bones were not exported to a skeleton prim as expected."
+        assert_true (animPrim.IsA(pyUsdSkel.Animation)) message:"The animations were not exported to a SkelAnimtion prim as expected."
+        
+        resetmaxfile #noprompt
+        exportOptions.Skin = false
+        bonesys.createbone [0,0,0] [0,1,0] [0,0,1]
+        USDExporter.ExportFile noExportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(noExportPath)
+        local skelRootPrim = stage.GetPrimAtPath("/root")
+        local skelPrim = stage.GetPrimAtPath("/root/Bones")
+        local animPrim = stage.GetPrimAtPath("/root/Bones/Anim")
+
+        assert_false (skelRootPrim.IsA(pyUsdSkel.Root)) message:"The root prim was exported as SkelRoot when it shouldn't have."
+        assert_false (pyUsd.Prim.IsValid(skelPrim)) message:"The Bones prim was created when it shouldn't have"
+        assert_false (pyUsd.Prim.IsValid(animPrim)) message:"The SkelAnimation prim was created when it shouldn't have"
+
+        -- Skins shouldn't be exported if the export meshes option is disabled
+        resetmaxfile #noprompt
+        exportOptions.Skin = true
+        exportOptions.Meshes = false
+        bonesys.createbone [0,0,0] [0,1,0] [0,0,1]
+        USDExporter.ExportFile noExportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(noExportPath)
+        local skelRootPrim = stage.GetPrimAtPath("/root")
+        local skelPrim = stage.GetPrimAtPath("/root/Bones")
+        local animPrim = stage.GetPrimAtPath("/root/Bones/Anim")
+
+        assert_false (skelRootPrim.IsA(pyUsdSkel.Root)) message:"The root prim was exported as SkelRoot even though export Meshes disabled."
+        assert_false (pyUsd.Prim.IsValid(skelPrim)) message:"The Bones prim was created even though export Meshes is disabled."
+        assert_false (pyUsd.Prim.IsValid(animPrim)) message:"The SkelAnimation prim was created even though export Meshes disabled."
+    ),
+    
+    function test_bake_object_offset_option = (
+        
+        -- Create a teapot with no object-offset transform, only a node transform.
+        local teapotWithOffset = teapot()
+        teapotWithOffset.name = "teapotWithOffset"
+        teapotWithOffset.pos = [0,0,10]
+        
+        -- Path the teapot's node will be exported to.
+        local teapotPath = "/" + teapotWithOffset.name
+        -- Path the mesh object will be exported to - this will only be used if the 
+        -- object-offet transform is not the identity transform and BakeObjectOffsetTransform
+        -- is turned off.
+        local teapotShapePath = "/" + teapotWithOffset.name + "/" + teapotWithOffset.name + "_Shape"
+        
+        -- Test BakeObjectOffsetTransform = false, object-offet = identity.
+        exportPath = output_prefix + "bake_offset_false_with_identity_offset.usd"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.BakeObjectOffsetTransform = false
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- BakeObjectOffsetTransform is set to false, but the offset is the identity transform
+        -- so there is no need to use an Xform to represent the offset.
+        usdTeaPot = stage.GetPrimAtPath(teapotPath)
+        usdTeaPotShape = stage.GetPrimAtPath(teapotShapePath)
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeaPot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        assert_false (pyUsd.Prim.IsValid(usdTeaPotShape)) message:"The USD teapot should not have a Shape sub-object. The offset was the identity transform."
+        local xformable = pyUsdGeom.Xformable(usdTeaPot)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) teapotWithOffset.transform) message:"The teapot prim's transform should equal the max node's transform"
+                    
+        -- Test BakeObjectOffsetTransform = false, object-offet != identity. 
+        exportPath = output_prefix + "bake_object_offset_false_with_offset.usd"
+        local zPosOffset = 10
+        teapotWithOffset.objectOffsetPos = [0,0,zPosOffset]
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeaPot = stage.GetPrimAtPath(teapotPath)
+        usdTeaPotShape = stage.GetPrimAtPath(teapotShapePath)
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape)) message:"The teapot prim should have a sub-object shape."
+        assert_true (usdTeaPotShape.IsA(pyUsdGeom.Mesh)) message:"The teapot sub-object should be a mesh prim."
+        assert_true (usdTeaPot.IsA(pyUsdGeom.Xform)) message:"The teapot geometry should be wrapped in an Xform representing the object-offset transform."
+        xformable = pyUsdGeom.Xformable(usdTeaPot)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) teapotWithOffset.transform)  message:"The teapot prim's transform should equal the max node's transform"
+        xformable = pyUsdGeom.Xformable(usdTeaPotShape)
+        objectOffset = teapotWithOffset.objecttransform * inverse teapotWithOffset.transform
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) objectOffset)  message:"The teapot sub-object shape's transform should equal the max object's offset transform."
+        
+        -- Keep track of the extent of the teapot. We will need it later to validate the baked offset-transform.
+        local teapotExtent = (usdTeaPotShape.GetAttribute("extent")).Get()
+        local teapotMinZ = teapotExtent[1][3]
+        local teapotMaxZ = teapotExtent[2][3]
+        
+        -- Test BakeObjectOffsetTransform = true, object-offet != identity.
+        exportOptions.BakeObjectOffsetTransform = true
+        exportPath = output_prefix + "bake_object_offset_true.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeaPot = stage.GetPrimAtPath(teapotPath)
+        usdTeaPotShape = stage.GetPrimAtPath(teapotShapePath)
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeaPot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim be a mesh."
+        assert_false (pyUsd.Prim.IsValid(usdTeaPotShape)) message:"The teapot prim should not have a sub-object shape."
+        xformable = pyUsdGeom.Xformable(usdTeaPot)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) teapotWithOffset.transform) message:"The teapot prim's transform should equal the max node's transform"
+        local bakedTeapotExtent = (usdTeaPot.GetAttribute("extent")).Get()
+        local bakedTeapotMinZ = bakedTeapotExtent[1][3]
+        local bakedTeapotMaxZ = bakedTeapotExtent[2][3]
+        -- Validate that the offset was baked in the geometry correctly: 
+        assert_equal (teapotMinZ + zPosOffset) bakedTeapotMinZ message:"Object-offset transform was not correctly baked in the geometry."
+        assert_equal (teapotMaxZ + zPosOffset) bakedTeapotMaxZ message:"Object-offset transform was not correctly baked in the geometry."
+        
+        -- The following tests are for the interaction between AllowNestedGprims and the BakeObjectOffset options. We test all 4 combinations.
+        -- I.e. Test that the offset baking option is respected whether or not nested prims are allowed.
+            
+        resetMaxFile #noPrompt    
+            
+        local teapot1 = teapot name:"teapot1"
+        teapot1.pos = [0,0,10] 
+        teapot1.objectOffsetPos = [0,0,5]
+        local teapot2 = teapot name:"teapot2"
+        teapot2.pos = [10,0,0] 
+        teapot2.objectOffsetPos = [0,0,15]
+        teapot2.parent = teapot1
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        
+        exportOptions.RootPrimPath = "/"
+
+        -- 1) Baking offsets + no nesting
+
+        exportOptions.AllowNestedGprims = false
+        exportOptions.BakeObjectOffsetTransform = true
+
+        exportPath = output_prefix + "bake_offset_no_gprim_nesting.usd"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeaPot = stage.GetPrimAtPath("/teapot1")
+        usdTeaPotShape = stage.GetPrimAtPath("/teapot1/teapot1_Shape")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot)) message:"The teapot1 was not exported to a USD prim as expected."
+        assert_true (usdTeaPot.IsA(pyUsdGeom.Xform)) message:"The teapot1 prim should be a mesh."
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape)) message:"The teapot prim should have a sub-object shape."
+        assert_true (usdTeaPotShape.IsA(pyUsdGeom.Mesh)) message:"The teapot shape prim should be a mesh."
+        xformable = pyUsdGeom.Xformable(usdTeaPot)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) teapot1.transform) message:"The teapot prim's transform should equal the max node's transform"
+        local bakedTeapotExtent = (usdTeaPotShape.GetAttribute("extent")).Get()
+        local bakedTeapotMinZ = bakedTeapotExtent[1][3]
+        local bakedTeapotMaxZ = bakedTeapotExtent[2][3]
+        -- Validate that the offset was baked in the geometry correctly: 
+        assert_equal (teapotMinZ + teapot1.objectOffsetPos[3]) bakedTeapotMinZ message:"Object-offset transform was not correctly baked in the geometry."
+        assert_equal (teapotMaxZ + teapot1.objectOffsetPos[3]) bakedTeapotMaxZ message:"Object-offset transform was not correctly baked in the geometry."
+
+        usdTeaPot2 = stage.GetPrimAtPath("/teapot1/teapot2")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot2)) message:"The teapot2 was not exported to a USD prim as expected."
+        assert_true (usdTeaPot2.IsA(pyUsdGeom.Mesh)) message:"The teapot2 shape prim should be a mesh."
+        xformable = pyUsdGeom.Xformable(usdTeaPot2)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot2.transform * inverse teapot1.transform)) message:"The teapot2 prim's transform should equal the max node's transform"
+        local bakedTeapotExtent = (usdTeaPot2.GetAttribute("extent")).Get()
+        local bakedTeapotMinZ = bakedTeapotExtent[1][3]
+        local bakedTeapotMaxZ = bakedTeapotExtent[2][3]
+        -- Validate that the offset was baked in the geometry correctly: 
+        assert_equal (teapotMinZ + teapot2.objectOffsetPos[3]) bakedTeapotMinZ message:"Object-offset transform was not correctly baked in the geometry."
+        assert_equal (teapotMaxZ + teapot2.objectOffsetPos[3]) bakedTeapotMaxZ message:"Object-offset transform was not correctly baked in the geometry."
+            
+        -- 2) Baking offsets + nesting
+            
+        exportPath = output_prefix + "bake_offset_gprim_nesting.usd"
+        exportOptions.AllowNestedGprims = true   
+        exportOptions.BakeObjectOffsetTransform = true
+            
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeaPot1 = stage.GetPrimAtPath("/teapot1")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot1)) message:"The teapot1 was not exported to a USD prim as expected."
+        assert_true (usdTeaPot1.IsA(pyUsdGeom.Mesh)) message:"teapot1 be a mesh prim."
+        xformable = pyUsdGeom.Xformable(usdTeaPot1)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) teapot1.transform)  message:"The teapot1 prim's transform should equal the max node's transform"
+        local bakedTeapotExtent = (usdTeaPot1.GetAttribute("extent")).Get()
+        local bakedTeapotMinZ = bakedTeapotExtent[1][3]
+        local bakedTeapotMaxZ = bakedTeapotExtent[2][3]
+        -- Validate that the offset was baked in the geometry correctly: 
+        assert_equal (teapotMinZ + teapot1.objectOffsetPos[3]) bakedTeapotMinZ message:"Object-offset transform was not correctly baked in the geometry."
+        assert_equal (teapotMaxZ + teapot1.objectOffsetPos[3]) bakedTeapotMaxZ message:"Object-offset transform was not correctly baked in the geometry."
+            
+        usdTeaPot2 = stage.GetPrimAtPath("/teapot1/teapot2")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPot2)) message:"The teapot2 was not exported to a USD prim as expected."
+        assert_true (usdTeaPot2.IsA(pyUsdGeom.Mesh)) message:"teapot2 be a mesh prim."
+        xformable = pyUsdGeom.Xformable(usdTeaPot2)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot2.transform * inverse teapot1.transform))  message:"The teapot2 prim's transform should equal the max node's transform"
+        local bakedTeapotExtent = (usdTeaPot2.GetAttribute("extent")).Get()
+        local bakedTeapotMinZ = bakedTeapotExtent[1][3]
+        local bakedTeapotMaxZ = bakedTeapotExtent[2][3]
+        -- Validate that the offset was baked in the geometry correctly: 
+        assert_equal (teapotMinZ + teapot2.objectOffsetPos[3]) bakedTeapotMinZ message:"Object-offset transform was not correctly baked in the geometry."
+        assert_equal (teapotMaxZ + teapot2.objectOffsetPos[3]) bakedTeapotMaxZ message:"Object-offset transform was not correctly baked in the geometry."            
+        
+        -- 3) no baking + no nesting
+        exportPath = output_prefix + "no_bake_offset_no_gprim_nesting.usd"
+        exportOptions.AllowNestedGprims = false   
+        exportOptions.BakeObjectOffsetTransform = false
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+
+        usdTeaPotShape1 = stage.GetPrimAtPath("/teapot1/teapot1_Shape")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape1)) message:"The teapot1 was not exported to a USD shape prim as expected."
+        assert_true (usdTeaPotShape1.IsA(pyUsdGeom.Mesh)) message:"The teapot1 should have a shape Mesh prim, is is offset."
+        xformable = pyUsdGeom.Xformable(usdTeaPotShape1)        
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot1.objecttransform * inverse teapot1.transform))  message:"The teapot2 prim's transform should equal the max node's transform"
+        usdTeaPotShape2 = stage.GetPrimAtPath("/teapot1/teapot2/teapot2_Shape")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape2)) message:"The teapot2 was not exported to a USD shape prim as expected."
+        assert_true (usdTeaPotShape2.IsA(pyUsdGeom.Mesh)) message:"The teapot2 should have a shape Mesh prim, is is offset."
+        xformable = pyUsdGeom.Xformable(usdTeaPotShape2)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot2.objecttransform * inverse teapot2.transform))  message:"The teapot2 prim's transform should equal the max node's transform"
+
+        -- 4) no baking + nesting -> this should produce the exact same result as 3), indeed in this scenario, nodes are split into xform + mesh 
+        -- for the need of object offsets.
+        exportPath = output_prefix + "no_bake_offset_no_gprim_nesting.usd"
+        exportOptions.AllowNestedGprims = false  
+        exportOptions.BakeObjectOffsetTransform = false
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+
+        usdTeaPotShape1 = stage.GetPrimAtPath("/teapot1/teapot1_Shape")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape1)) message:"The teapot1 was not exported to a USD shape prim as expected."
+        assert_true (usdTeaPotShape1.IsA(pyUsdGeom.Mesh)) message:"The teapot1 should have a shape Mesh prim, is is offset."
+        xformable = pyUsdGeom.Xformable(usdTeaPotShape1)        
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot1.objecttransform * inverse teapot1.transform))  message:"The teapot2 prim's transform should equal the max node's transform"
+        usdTeaPotShape2 = stage.GetPrimAtPath("/teapot1/teapot2/teapot2_Shape")
+        assert_true (pyUsd.Prim.IsValid(usdTeaPotShape2)) message:"The teapot2 was not exported to a USD shape prim as expected."
+        assert_true (usdTeaPotShape2.IsA(pyUsdGeom.Mesh)) message:"The teapot2 should have a shape Mesh prim, is is offset."
+        xformable = pyUsdGeom.Xformable(usdTeaPotShape2)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) (teapot2.objecttransform * inverse teapot2.transform))  message:"The teapot2 prim's transform should equal the max node's transform"    
+    ),
+
+    function test_preserve_edge_orientation_option = (
+        -- Create am Editable Poly plane and move a couple of vertices on the z axis
+        local polyPlane = convertToPoly(Plane length:49.0 width:49.0 pos:[0,0,0] lengthsegs:7 widthsegs:7)
+        local numFaces = polyPlane.numfaces
+        polyop.moveVert polyPlane 31 [0, 0, 2.52511]
+        polyop.moveVert polyPlane 32 [0, 0, 2.52511]
+        polyop.moveVert polyPlane 41 [0, 0, 2.52511]
+        polyop.moveVert polyPlane 42 [0, 0, -2.52511]
+        polyop.moveVert polyPlane 43 [0, 0, -4.52511]
+        polyop.moveVert polyPlane 44 [0, 0, 2.52511]
+
+        -- Setup preserve edge orientation to false and export.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        exportPath = output_prefix + "preserve_edge_orientation.usd"
+        exportOptions.PreserveEdgeOrientation = false
+        assert_false exportOptions.PreserveEdgeOrientation message:"PreserveEdgeOrientation property could not be set to false."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        resetmaxfile #noprompt
+
+        -- Reimport to make sure we get a plane with the same number of faces
+        USDImporter.ImportFile exportPath
+        assert_equal numFaces $objects[1].numfaces message:"Unexpected numfaces count with PreserveEdgeOrientation = false"
+
+        -- Now, setup preserve edge orientation to true and export.
+        exportPath = output_prefix + "do_not_preserve_edge_orientation.usd"
+        exportOptions.PreserveEdgeOrientation = true
+        assert_true exportOptions.PreserveEdgeOrientation message:"PreserveEdgeOrientation property could not be set to true."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        resetmaxfile #noprompt
+
+        -- Reimport to make sure we get a plane with more faces (some triangulation occurred)
+        USDImporter.ImportFile exportPath
+        assert_equal 59 $objects[1].numfaces message:"Unexpected numfaces count with PreserveEdgeOrientation = true"
+    ),
+    
+    function test_up_axis_option = (
+        -- Setup up axis to Y and export.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportPath = output_prefix + "up_axis_Y.usd"
+        exportOptions.UpAxis = #y
+        assert_equal #y exportOptions.UpAxis message:"UpAxis property could not be set to #y."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        -- Make sure the stage has the correct up-axis.
+        local stage = pyUsd.Stage.Open(exportPath)
+        local upAxis = pyUsdGeom.GetStageUpAxis(stage)
+        assert_equal "Y" upAxis
+        
+        -- Now test with Z
+        exportPath = output_prefix + "up_axis_Z.usd"
+        exportOptions.UpAxis = #z
+        assert_equal #z exportOptions.UpAxis message:"UpAxis property could not be set to #z."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        upAxis = pyUsdGeom.GetStageUpAxis(stage)
+        assert_equal "Z" upAxis
+        
+        -- Test that an invalid up axis is rejected.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.UpAxis = 10
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid UpAxis should have thrown an exception."
+    ),
+    
+    function test_file_format_option = (
+       -- Set file format to ascii and export.        
+        local exportOptions = USDExporter.CreateOptions()
+        exportPath = output_prefix + "file_format_ascii.usd"
+        exportOptions.FileFormat = #ascii
+        assert_equal #ascii exportOptions.FileFormat message:"FileFormat property could not be set to #ascii."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        -- Make sure the file format was correctly set for the root layer.
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rootLayer = stage.GetRootLayer()
+        local usdAsciiFormat = pySdf.FileFormat.FindById("usda")
+        local isAscii = usdAsciiFormat.CanRead(rootLayer.identifier)
+        assert_equal true isAscii
+        -- test the binary file format.
+        exportPath = output_prefix + "file_format_binary.usd"
+        exportOptions.FileFormat = #binary
+        assert_equal #binary exportOptions.FileFormat message:"FileFormat property could not be set to #binary."
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        rootLayer = stage.GetRootLayer()
+        local usdBinaryFormat = pySdf.FileFormat.FindById("usdc")
+        local isBinary = usdBinaryFormat.CanRead(rootLayer.identifier)
+        assert_equal true isBinary
+
+        -- test usdz file format.
+        stageFilename = "file_format_binary"
+        exportPath = output_prefix + (stageFilename + ".usdz")
+        
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_true status message:"Failed to export to usdz"
+        assert_true (doesFileExist exportPath) message:"cannot find exported usdz file"
+
+        try
+        (
+            pyZip = python.import("zipfile")
+            zipfile = pyZip.ZipFile(exportPath)
+            zipStatus = zipfile.testzip()
+            assert_undefined zipStatus message:("Exported usdz is a corrupted zip file")
+            
+            -- verify the presence of the exported stage USD file named the same as the USDZ file
+            stageFilePresent = false
+            local expectedFilePath
+            maxver = maxVersion()
+
+            if maxver[1] <= 26000 then ( 
+                -- 2024 RC and before
+                expectedFilePath = pathConfig.removePathTopParent (output_prefix + (stageFilename + ".usd")) -- remove 'c:/'
+            )
+            else (
+                -- we introduce 23.11 in 2025
+                -- due to changes in pixar USD 23.11 in the following commit:
+                -- https://github.com/PixarAnimationStudios/OpenUSD/commit/7110d3f6e5db69bea384d8874665666aa7dce755
+                -- the way the zip is created will no longer hold the directory structure to the location of the .usdz
+                -- within the compressed contents of the .usdz itself
+                expectedFilePath = filename_prefix + stageFilename + ".usd"
+            )
+            for item in (zipfile.namelist() as Array) do
+            (
+                if pathConfig.pathsResolveEquivalent expectedFilePath item do
+                (
+                    stageFilePresent = true
+                )
+            )
+            assert_true stageFilePresent message:("Exported usdz shall contain the export stage (.usd) with the same filename as the usdz file")
+        )
+        catch
+        (
+            assert_true false message:("Exported usdz is not a valid zip file")
+        )
+        
+        -- Test that invalid file formats are rejected.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.FileFormat = 10
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid FileFormat should have thrown an exception."
+    ),
+
+    function test_file_format_versus_extension = (
+        local exportOptions = USDExporter.CreateOptions()
+        
+        -- Test that a mismatch between the extension and the FileFormat option fails the export.
+        exportPath = output_prefix + "mismatch.usda"
+        exportOptions.FileFormat = #binary
+        local result = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_false result message:"The export should have failed on FileFormat / extension mismatch (#binary with .usda)"
+        
+        exportOptions.FileFormat = #ascii
+        exportPath = output_prefix + "mismatch.usdc"
+        result = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_false result message:"The export should have failed on FileFormat / extension mismatch (#ascii with .usdc)"
+        
+        -- Test good cases, #binary/usdc and #ascii/usda
+        exportPath = output_prefix + "match.usda"
+        exportOptions.FileFormat = #ascii
+        result = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_true result message:"The export should have succeeded on matching extension / FileFormat (#ascii with .usda)"
+        
+        exportPath = output_prefix + "match.usdc"
+        exportOptions.FileFormat = #binary
+        result = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_true result message:"The export should have succeeded on matching extension / FileFormat (#binary with .usdc)"
+    ),
+
+    function test_mtl_layer_path = (
+        local exportOptions = USDExporter.CreateOptions()
+        local exceptionThrown = false
+
+        -- Good case, no unicode chars in the file path
+        try(
+            local pathName = output_prefix + "mtl_<path>.usda"
+            exportOptions.MaterialLayerPath = pathName
+        )
+        catch
+        (
+            exceptionThrown = true
+        )
+        assert_equal exportOptions.MaterialLayerPath pathName
+        assert_false exceptionThrown message:"Attempting to create a mtl layer path with no unicode characters."
+
+        -- Test exception from using unicode chars
+        try
+        (
+            exportOptions.MaterialLayerPath = "mtl©path.usda"
+        )
+        catch
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to create a mtl layer path with a unicode character."
+    ),
+    
+    function test_log_options = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        local logPath = (output_prefix + "log_path_test.log")
+        exportOptions.LogPath = logPath;
+        assert_equal logPath exportOptions.LogPath
+        
+        -- Log off..
+        exportOptions.LogLevel = #off
+        assert_equal #off exportOptions.LogLevel
+        
+        -- Make sure the log doesnt currently exist.
+        deleteFile logPath
+        
+        -- No log should be created on export.
+        exportOptions.FileFormat = #ascii
+        local exportPath = (output_prefix + "teapot.usda")
+        teapot()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_equal 0 (getfiles logPath).count
+
+        local levels = #(#info, #warn, #error)
+        -- For other levels, the log should be created.
+        for level in levels do (
+            -- Log should now be created.
+            exportOptions.LogLevel = level
+            assert_equal level exportOptions.LogLevel
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            assert_not_equal 0 (getfiles logPath).count
+            local logSize = getfileSize logPath
+            if level == #info then (
+                assert_not_equal 0 logSize message:"#info log should not be empty."
+            )
+            else (
+                assert_equal 0 logSize message:((level as string) + " log should be empty.")
+            )
+            deleteFile logPath
+        )
+        
+        try (
+            -- Test that a bad path throws an error.
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.LogPath = "<not valid!>"
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown
+        
+        -- Test that invalid log levels are rejected.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.LogLevel = 10
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid LogLevel should have thrown an exception."
+    ),
+
+    function test_no_file_extension = (
+        -- given
+        local exportOptions = USDExporter.CreateOptions()
+        exportPath = output_prefix + "no_file_extension"
+
+        -- when
+        exportOptions.FileFormat = #ascii
+        -- then
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_false (doesFileExist exportPath)
+        resultingExportPath = exportPath + ".usd"
+        assert_equal 1 status message:("export failed")
+        assert_true (doesFileExist resultingExportPath)
+
+        -- when
+        exportOptions.FileFormat = #binary
+        -- then
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_false (doesFileExist exportPath)
+        resultingExportPath = exportPath + ".usd"
+        assert_true (doesFileExist resultingExportPath)
+    ),
+    
+    function test_file_extension_uppercase = (
+        -- given
+        local exportOptions = USDExporter.CreateOptions()
+        -- when
+        -- simulate scenario in old versions of max when in ui user does not specify file extension
+        exportPath = output_prefix + "file_extension.USD"
+        exportOptions.FileFormat = #binary
+        -- then
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_equal 1 status message:("export failed")
+        assert_true (doesFileExist exportPath)
+
+        -- when
+        exportPath = output_prefix + "file_extension.usDA"
+        exportOptions.FileFormat = #ascii
+        -- then
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_equal 1 status message:("Export failed for " + exportPath)
+        resultingExportPath = output_prefix + "file_extension.usda"
+        assert_true (doesFileExist resultingExportPath)
+    ),
+    
+    function test_normals_option = (
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        local exportOptions = USDExporter.CreateOptions()
+        
+        exportOptions.FileFormat = #ascii
+        local exportPath = output_prefix + "no_normals.usda"
+
+        -- Test exporting without normals.
+        
+        exportOptions.Normals = #none
+        exportOptions.RootPrimPath = "/" 
+        
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local cubePrim = stage.GetPrimAtPath("/" + nodeName)
+        assert_true (pyUsd.Prim.IsValid(cubePrim)) message:"Box should have exported to a valid prim."
+        assert_true (cubePrim.IsA(pyUsdGeom.Mesh)) message:"Box should have exported to a valid UsdMesh"
+        -- Should not have primvar normals
+        local primvarApi = pyUsdGeom.PrimvarsAPI(cubePrim)
+        assert_false (primvarApi.HasPrimvar("normals")) message:"Should not have a normals primvar when using #none."
+        -- Should not have a normals attribute either.
+        local cubeGeom = pyUsdGeom.Mesh(cubePrim)
+        assert_undefined ((cubeGeom.GetNormalsAttr()).Get()) message:"Should not have a normals attribute when using #none."
+        -- Subdiv scheme should be default.
+        assert_equal "catmullClark" ((cubeGeom.GetSubdivisionSchemeAttr()).Get()) message:"When not exporting normals, should be using the default subdiv scheme."
+            
+        -- Test exporting normals as primvar.
+            
+        exportPath = output_prefix + "primvar_normals.usda"
+        exportOptions.Normals = #asPrimvar
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local cubePrim = stage.GetPrimAtPath("/" + nodeName)
+        assert_true (pyUsd.Prim.IsValid(cubePrim)) message:"Box should have exported to a valid prim."
+        assert_true (cubePrim.IsA(pyUsdGeom.Mesh)) message:"Box should have exported to a valid UsdMesh"
+        -- Should have a normals primvar
+        local primvarApi = pyUsdGeom.PrimvarsAPI(cubePrim)
+        assert_true (primvarApi.HasPrimvar("normals")) message:"Should have exported normals as primvars."
+        -- Not have a normals attribute either.
+        local cubeGeom = pyUsdGeom.Mesh(cubePrim)
+        assert_undefined ((cubeGeom.GetNormalsAttr()).Get()) message:"Should not have a normals attribute when using #asPrimvar."
+        -- Subdiv scheme should be None. As normals are explicit.
+        assert_equal "none" ((cubeGeom.GetSubdivisionSchemeAttr()).Get()) message:"Should be using none subdiv scheme when exporting normals."
+            
+        -- Test exporting normals as attribute
+            
+        exportPath = output_prefix + "attribute_normals.usda"
+        exportOptions.Normals = #asAttribute
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local cubePrim = stage.GetPrimAtPath("/" + nodeName)
+        assert_true (pyUsd.Prim.IsValid(cubePrim)) message:"Box should have exported to a valid prim."
+        assert_true (cubePrim.IsA(pyUsdGeom.Mesh)) message:"Box should have exported to a valid UsdMesh"
+        -- Should not have a normals primvar
+        local primvarApi = pyUsdGeom.PrimvarsAPI(cubePrim)
+        assert_false (primvarApi.HasPrimvar("normals")) message:"Should not have primvar normals when using #asAttribute"
+        -- Should have a normals attribute.
+        local cubeGeom = pyUsdGeom.Mesh(cubePrim)
+        assert_defined ((cubeGeom.GetNormalsAttr()).Get()) message:"Should have exported normals to an attribute."
+        -- Subdiv scheme should be None. As normals are explicit.
+        assert_equal "none" ((cubeGeom.GetSubdivisionSchemeAttr()).Get())  message:"Should be using none subdiv scheme when exporting normals."
+            
+        -- Test that invalid normal modes are rejected.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.Normals = 10
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid NormalMode should have thrown an exception."
+    ),
+    
+    function test_mesh_format_option = (
+        
+        -- Local utility functions.
+        function validate_usd_cube_using_triangles nodeName prim = (
+            assert_true (pyUsd.Prim.IsValid(prim)) message:(nodeName + " should have exported to a valid prim.")
+            assert_true (prim.IsA(pyUsdGeom.Mesh)) message:(nodeName + " should have exported to a valid UsdMesh")
+            local cubeTriUsdMesh = pyUsdGeom.Mesh(prim)
+            local triFaceCount = cubeTriUsdMesh.GetFaceCount()            
+            assert_equal 12 triFaceCount message:(nodeName + " should have exporting to a cube with 12 faces. 2 triangles per face.")
+                
+            local triFaceVertexCounts = (cubeTriUsdMesh.GetFaceVertexCountsAttr()).Get()
+            for face = 1 to triFaceCount do ( 
+                assert_equal 3 triFaceVertexCounts[face] message:(nodeName + " should have exported to a cube mesh with all triangular faces.")
+            )
+        )
+        
+        function validate_usd_cube_using_polys nodeName prim = (
+            assert_true (pyUsd.Prim.IsValid(prim)) message:(nodeName + " should have exported to a valid prim.")
+            assert_true (prim.IsA(pyUsdGeom.Mesh)) message:(nodeName + " should have exported to a valid UsdMesh")
+            local cubePolyUsdMesh = pyUsdGeom.Mesh(prim)
+            local polyFaceCount = cubePolyUsdMesh.GetFaceCount()        
+                
+            assert_equal 6 polyFaceCount message:(nodeName + " should have exporting to a cube with 6 faces. 1 quad per face.")
+            
+            local polyFaceVertexCounts = (cubePolyUsdMesh.GetFaceVertexCountsAttr()).Get()
+            for face = 1 to polyFaceCount do ( 
+                assert_equal 4 polyFaceVertexCounts[face] message:(nodeName + " should have exported to a cube mesh with all polygonal faces.")
+            )
+        )
+        
+        local cube = Box name:"cube"
+        
+        local cubeTri = Box name:"cubeTri"
+        convertToMesh cubeTri
+        
+        local cubePoly = Box name:"cubePoly"
+        convertToPoly cubePoly
+                
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        
+        -- Test exporting with MeshFormat = #fromScene (default)
+        local exportPath = output_prefix + "meshformat_from_scene.usda"
+        exportOptions.MeshFormat = #fromScene
+        exportOptions.RootPrimPath = "/"
+        
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- The "Box" cube will be converted to poly as fallback, it is neither a triMesh nor a polyMesh.
+        local cubePrim = stage.GetPrimAtPath("/" + cube.Name)
+        validate_usd_cube_using_polys cube.Name cubePrim
+        -- The editable mesh cube should be all triangles on the USD side.
+        local cubeTriPrim = stage.GetPrimAtPath("/" + cubeTri.Name)
+        validate_usd_cube_using_triangles cubeTri.Name cubeTriPrim
+        -- The editable poly cube should be all quads on the USD side.
+        local cubePolyPrim = stage.GetPrimAtPath("/" + cubePoly.Name)
+        validate_usd_cube_using_polys cubePoly.Name cubePolyPrim
+        
+        -- Test exporting with MeshFormat = #polyMesh 
+        local exportPath = output_prefix + "meshformat_polyMesh.usda"
+        exportOptions.MeshFormat = #polyMesh
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- The "Box" cube will be converted to polygonal mesh.
+        local cubePrim = stage.GetPrimAtPath("/" + cube.Name)
+        validate_usd_cube_using_polys cube.Name cubePrim
+        -- The editable mesh cube should be all quads on the USD side. Hidden edges were removed to build polys.
+        local cubeTriPrim = stage.GetPrimAtPath("/" + cubeTri.Name)
+        validate_usd_cube_using_polys cubeTri.Name cubeTriPrim
+        -- The editable poly cube should be all quads on the USD side.
+        local cubePolyPrim = stage.GetPrimAtPath("/" + cubePoly.Name)
+        validate_usd_cube_using_polys cubePoly.Name cubePolyPrim
+        
+        -- Test exporting with MeshFormat = #triMesh
+        local exportPath = output_prefix + "meshformat_triMesh.usda"
+        exportOptions.MeshFormat = #triMesh
+        UsdExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- The "Box" cube will be converted to a triangular mesh.
+        local cubePrim = stage.GetPrimAtPath("/" + cube.Name)
+        validate_usd_cube_using_triangles cube.Name cubePrim
+        -- The editable mesh cube should be all triangles on the USD side.        
+        local cubeTriPrim = stage.GetPrimAtPath("/" + cubeTri.Name)
+        validate_usd_cube_using_triangles cubeTri.Name cubeTriPrim
+        -- The editable poly cube should be all triangles on the USD side.
+        local cubePolyPrim = stage.GetPrimAtPath("/" + cubePoly.Name)
+        validate_usd_cube_using_triangles cubePoly.Name cubePolyPrim
+        
+        -- Test that invalid MeshFormat modes are rejected.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.MeshFormat = 10
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid MeshFormat should have thrown an exception."        
+        
+    ),    
+    
+    function test_export_at_time = (
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        local nodeName = "cube"
+        local cube = Box name:"cube"
+        
+        convertToPoly cube
+        polyop.setFaceSelection cube  #{2}
+        
+        with animate on 
+        (
+            -- Animate both the position and the geometry.
+            at time 10 move cube [0,0,10]
+            at time 10 move cube.selectedFaces [0,0,10]
+        )
+        
+        -- Time values. The animation runs from 0 to 10.
+        local testValues = #(-1,0,5,10,11)
+        
+        -- Testing #current as TimeMode
+        exportOptions.TimeMode = #current
+        for val in testValues do (
+            local exportPath = output_prefix + "export_time_current_" + val as string + ".usda"
+            -- Change the currentTime.
+            sliderTime = val
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            local stage = pyUsd.Stage.Open(exportPath)
+            usdCube = stage.GetPrimAtPath("/cube")
+            
+            -- Test transform.
+            local xformable = pyUsdGeom.Xformable(usdCube)
+            local t = at time val cube.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) t) message:("The cube's transform is wrong when exporting with #current at t = " + val as string)
+        
+            -- Test geometry.
+            local mesh = pyUsdGeom.Mesh(usdCube)
+            local points = usdCube.GetAttribute("points")
+            local vertices = (points).Get()
+            
+            for i = 5 to 8 do (
+                local pos = at time val in coordsys local cube.max[3]
+                assert_equal pos vertices[i][3] message:("The cube's top face position is wrong when exporting with #current at t = " + val as string)
+            )
+            assert_equal 0.0 (stage.GetStartTimeCode()) message:"Unexpected start timeCode set in the USD stage."
+            assert_equal 0.0 (stage.GetEndTimeCode()) message:"Unexpected end timeCode set in the USD stage."
+        )
+
+        -- Testing #explicit as TimeMode
+        exportOptions.TimeMode = #explicit
+        for val in testValues do (
+            local exportPath = output_prefix + "export_time_explicit" + val as string + ".usda"
+            
+            -- Specify the time at which to export explicitly.
+            exportOptions.StartFrame = val
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            local stage = pyUsd.Stage.Open(exportPath)
+            usdCube = stage.GetPrimAtPath("/cube")
+            
+            -- Test transform.
+            local xformable = pyUsdGeom.Xformable(usdCube)
+            local t = at time val cube.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) t) message:("The cube's transform is wrong when exporting with #explicit at t = " + val as string)
+                
+            -- Test geometry.
+            local mesh = pyUsdGeom.Mesh(usdCube)
+            local points = usdCube.GetAttribute("points")
+            local vertices = (points).Get()
+            for i = 5 to 8 do (
+                local pos = at time val in coordsys local cube.max[3]
+                assert_equal pos vertices[i][3] message:("The cube's top face position is wrong when exporting with #explicit at t = " + val as string)
+            )
+            assert_equal 0.0 (stage.GetStartTimeCode()) message:"Unexpected start timeCode set in the USD stage."
+            assert_equal 0.0 (stage.GetEndTimeCode()) message:"Unexpected end timeCode set in the USD stage."            
+        )
+    
+        -- Testing #animationRange as TimeMode
+        -- Configure the time slider to go from 2 to 8.        
+        local rangeStart = 2
+        local rangeEnd = 8
+        
+        animationRange = interval rangeStart rangeEnd
+        local exportPath1 = output_prefix + "export_time_animationrange.usda"
+        exportOptions.TimeMode = #animationRange
+        
+        USDExporter.ExportFile exportPath1 exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath1)
+        usdCube = stage.GetPrimAtPath("/cube")
+        
+        -- Test transform.
+        local xformable = pyUsdGeom.Xformable(usdCube)
+        local mesh = pyUsdGeom.Mesh(usdCube)
+        local points = usdCube.GetAttribute("points")    
+        
+        for timeCode in rangeStart to rangeEnd do (
+            local t = at time timeCode cube.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The cube's transform is wrong when exporting with #animationRange at t = " + timeCode as string)
+            -- Test geometry.
+            local vertices = (points).Get(timeCode)
+            for i = 5 to 8 do (
+                local pos = at time timeCode in coordsys local cube.max[3]
+                assert_equal pos vertices[i][3] message:("The cube's top face position is wrong when exporting with #animationRange at t = " + timeCode as string)
+            )
+        )
+        assert_equal 2.0 (stage.GetStartTimeCode()) message:"Unexpected start timeCode set in the USD stage."
+        assert_equal 8.0 (stage.GetEndTimeCode()) message:"Unexpected end timeCode set in the USD stage."
+        
+        local exportPath = output_prefix + "export_time_framerange.usda"
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = -5
+        exportOptions.EndFrame = 5
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        usdCube = stage.GetPrimAtPath("/cube")
+        
+        -- Test transform.
+        local xformable = pyUsdGeom.Xformable(usdCube)
+        local mesh = pyUsdGeom.Mesh(usdCube)
+        local points = usdCube.GetAttribute("points")    
+        
+        for timeCode = exportOptions.StartFrame to exportOptions.EndFrame do (
+            local t = at time timeCode cube.transform
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation(timeCode)) t) message:("The cube's transform is wrong when exporting with #animationRange at t = " + val as string)
+            -- Test geometry.
+            local vertices = (points).Get(timeCode)
+            for i = 5 to 8 do (
+                local pos = at time timeCode in coordsys local cube.max[3]
+                assert_equal pos vertices[i][3] message:("The cube's top face position is wrong when exporting with #frameRange at t = " + timeCode as string)
+            )
+        )
+        assert_equal exportOptions.StartFrame (stage.GetStartTimeCode()) message:"Unexpected start timeCode set in the USD stage."
+        assert_equal exportOptions.EndFrame (stage.GetEndTimeCode()) message:"Unexpected end timeCode set in the USD stage."
+        
+        -- Test samples per frame.
+        samplePerFrameToTest = #(0.5, 0.75, 1.0, 1.5, 3.0)
+        expectedSampleCount = #(2, 3, 3, 5, 8)
+        
+        for i in 1 to samplePerFrameToTest.Count do (
+            
+            local exportPath = output_prefix + "export_samples_per_frame_" + samplePerFrameToTest[i] as string + ".usda"            
+            exportOptions.TimeMode = #frameRange
+            exportOptions.StartFrame = 0
+            exportOptions.EndFrame = 2
+            exportOptions.SamplesPerFrame = samplePerFrameToTest[i]
+            
+            USDExporter.ExportFile exportPath exportOptions:exportOptions
+            local stage = pyUsd.Stage.Open(exportPath)
+            usdCube = stage.GetPrimAtPath("/cube")
+            
+            -- Test transform.
+            local xformable = pyUsdGeom.Xformable(usdCube)
+            local mesh = pyUsdGeom.Mesh(usdCube)
+            local points = usdCube.GetAttribute("points")    
+            
+            local timeSamples = points.GetTimeSamples()
+            
+            assert_equal expectedSampleCount[i] timeSamples.Count message:("Unexpected exported sample counts at " + samplePerFrameToTest[i] as string)    
+        )
+        
+        -- Test that a warning is raised for EndTime < StartTime, and only the StartTime is exported.
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = -10
+        exportOptions.TimeMode = #frameRange
+        exportOptions.LogLevel = #warn 
+        exportOptions.LogPath = output_prefix + "end_time_before_start_time.log"
+        deleteFile exportOptions.LogPath
+        local exportPath = output_prefix + "end_time_before_start_time.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_not_equal 0 (getfiles exportOptions.LogPath).count
+        local logSize = getfileSize exportOptions.LogPath
+        assert_not_equal 0 logSize message:"A warning should have been raised for EndTime < StartTime."
+        
+        -- Test validation of the TimeMode.
+        exportOptions.Reset()
+        try (
+            exportOptions.TimeMode = -1
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when setting an invalid TimeMode."
+        
+        -- Test validation of the SamplesPerFrame.
+        exportOptions.Reset()
+        try (
+            exportOptions.SamplesPerFrame = -1
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when setting an invalid SamplesPerFrame value."
+    ), 
+    
+    function test_root_prim_path_option = (        
+        local box1 = Box name:"Box1"
+        local exportPath = (output_prefix + "empty_prim_path_test.usda")
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        
+        -- Test default behavior, when the RootPrimPath is empty, use the target file name as root prim.
+        exportOptions.RootPrimPath = ""
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        boxPrim = stage.GetPrimAtPath("/" + (getFilenameFile exportPath) + "/" + box1.Name)
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"The box was not exported to the expected path."
+                    
+        local exportPath = (output_prefix + "absolute_root_prim_path_test.usda")
+        -- Test "/" as the root. 
+        exportOptions.RootPrimPath = "/"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        boxPrim = stage.GetPrimAtPath("/" + box1.Name)
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"The box was not exported to the expected path."
+            
+        -- Now specify the target root prim explicitely.            
+        local exportPath = (output_prefix + "specified_root_prim_path_test.usda")
+        
+        exportOptions.RootPrimpath = "/foo/bar/baz"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        boxPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.Name)
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"The box was not exported to the expected path."
+        
+        -- Make sure that prototype prims and the materials scope are also created under the specified root.
+        local exportPath = (output_prefix + "specified_root_prim_path_with_instances_and_mat_test.usda")
+        box2 = create_clone box1 #instance "Box2"
+        box1.Material = PhysicalMaterial()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.Name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"The box was not exported to the expected path."
+        box2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2.Name)
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"The instanced box was not exported to the expected path."
+        prototypePrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/_class_Box1")
+        assert_true (pyUsd.Prim.IsValid(prototypePrim)) message:"The prototype prim for the boxes was not exported to the expected path."
+        materialScope = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/mtl")
+        assert_true (pyUsd.Prim.IsValid(materialScope)) message:"The material scope prim was not exported to the expected path."
+            
+        -- Make sure only valid prim paths are accepted.
+        -- Test attempting to set an invalid path throws.
+        local exportOptions = USDExporter.CreateOptions()
+        local errorMessage = "No exception was thrown when setting invalid USD path as root prim."
+        
+        -- Completely wrong path.
+        local exceptionThrown = false
+        try (
+            exportOptions.RootPrimPath = "#&$"
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+
+        -- Valid prim path, but not absolute.
+        local exceptionThrown = false
+        try (
+            exportOptions.RootPrimPath = "Foo/bar"
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+        
+        -- Absolute path, but to a property, not a prim.
+        local exceptionThrown = false
+        try (
+            exportOptions.RootPrimPath = "/Foo.prop"
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+    ),
+    
+    function test_export_hidden_objects_option = (
+        /*
+        Create a simple scene with this hierarchy.
+          - Box1
+            - Box2  
+              - Box3
+              - Box4
+        */
+        box1 = box name:"Box1"
+        box2 = box name:"Box2"
+        box2.parent = Box1
+        box3 = box name:"Box3"
+        box3.parent = Box2
+        box4 = box name:"Box4"
+        box4.parent = Box2
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        
+        -- Test HiddenObjects = true : 
+        local exportPath = (output_prefix + "export_hidden_true.usda")
+        -- Hide all objects
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = true
+        box4.isHidden = true
+        exportOptions.HiddenObjects = true
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath("/Box1")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"Box1 was not exported to the expected path."
+        box2Prim = stage.GetPrimAtPath("/Box1/Box2")
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"Box2 was not exported to the expected path."
+        box3Prim = stage.GetPrimAtPath("/Box1/Box2/Box3")
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"Box3 was not exported to the expected path."
+        box4Prim = stage.GetPrimAtPath("/Box1/Box2/Box4")
+        assert_true (pyUsd.Prim.IsValid(box4Prim)) message:"Box4 was not exported to the expected path."
+        
+        -- Test HiddenObjects = false : 
+        local exportPath = (output_prefix + "export_hidden_false.usda")
+        exportOptions.HiddenObjects = false
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        root = stage.GetPseudoRoot()
+        assert_equal 0 (root.GetChildren()).Count message:"No prims should have been exported, all nodes were hidden."
+        
+        -- Test HiddenObjects = false with hidden parents and visible children.
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = false
+        box4.isHidden = false
+        
+        local exportPath = (output_prefix + "export_hidden_parent_visible_children.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        -- Box1 and Box2 should still have been exported, as they have visible descendants, and we need their transforms,
+        -- however, they should only be exported as Xforms.
+        box1Prim = stage.GetPrimAtPath("/Box1")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"Box1 was not exported to the expected path."
+        assert_true (box1Prim.IsA(pyUsdGeom.Xform)) message:"Box1 should have been exported as an Xform."
+        box2Prim = stage.GetPrimAtPath("/Box1/Box2")
+        assert_true (pyUsd.Prim.IsValid(box2Prim)) message:"Box2 was not exported to the expected path."
+        assert_true (box2Prim.IsA(pyUsdGeom.Xform)) message:"Box2 should have been exported as an Xform."
+        box3Prim = stage.GetPrimAtPath("/Box1/Box2/Box3")
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"Box3 was not exported to the expected path."
+        assert_true (box3prim.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."
+        box4Prim = stage.GetPrimAtPath("/Box1/Box2/Box4")
+        assert_true (pyUsd.Prim.IsValid(box4Prim)) message:"Box4 was not exported to the expected path."
+        assert_true (box4prim.IsA(pyUsdGeom.Mesh)) message:"Box4 should have been exported as a Mesh."
+            
+        -- Test behavior with a node list...
+        -- HiddenObjects = false 
+        -- Hidden parents and visible children which are not part of the node list.
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = false
+        box4.isHidden = false
+            
+        local nodesToExport = #(box1, box2)
+        exportPath = (output_prefix + "export_hidden_parent_visible_children_nodelist.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodesToExport
+            
+        -- Should get nothing on export. 
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPseudoRoot()
+        assert_equal 0 (root.GetChildren()).Count message:"No prims should have been exported, all nodes were hidden or excluded from the node list."
+            
+        -- Test behavior with a node list...
+        -- HiddenObjects = false 
+        -- Hidden parent and visible non immediate descendant which is part of the node list.
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = false
+        box4.isHidden = true
+        
+        local nodesToExport = #(box1, box3)
+        exportPath = (output_prefix + "export_hidden_parent_visible_descendant_nodelist.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodesToExport
+            
+        -- Should only get box3 exported at the root. box1 is part of the list and has a visible descendant but box2 is excluded, 
+        -- so box3 will be exported at the root, and therefor box1 does not need to be exported as an Xform.
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPseudoRoot()
+        assert_equal 1 (root.GetChildren()).Count message:"A single prim should have been exported, none found."
+        box3Prim = stage.GetPrimAtPath("/Box3")
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"Box3 was not exported to the expected path."
+        assert_true (box3prim.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."
+            
+        -- Test behavior with a node list...
+        -- HiddenObjects = false 
+        -- All nodes part of the list are hidden, other nodes are visible.
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = true
+        box4.isHidden = false
+        
+        local nodesToExport = #(box1, box2, box3)
+        exportPath = (output_prefix + "all_nodes_in_list_hidden.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodesToExport
+            
+        -- Should get nothing on export. 
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPseudoRoot()
+        assert_equal 0 (root.GetChildren()).Count message:"No prims should have been exported, all nodes in the node list were hidden."
+            
+        -- Test behavior with a node list...
+        -- HiddenObjects = false 
+        -- Single node in the node list, all parents invisible.
+            
+        box1.isHidden = true
+        box2.isHidden = true
+        box3.isHidden = false
+        box4.isHidden = true
+            
+        local nodesToExport = #(box3)
+        exportPath = (output_prefix + "single_export_node_visible_parents_hidden.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#nodeList nodeList:nodesToExport
+            
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPseudoRoot()
+        assert_equal 1 (root.GetChildren()).Count message:"Only Box3 should have been exported."
+        box3Prim = stage.GetPrimAtPath("/Box3")
+        assert_true (pyUsd.Prim.IsValid(box3Prim)) message:"Box3 was not exported to the expected path."
+        assert_true (box3prim.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."
+    ),
+    
+    function test_use_usd_visibility_option = (
+        -- Create a single, hidden box.
+        box1 = box name:"Box1"
+        box1.isHidden = true
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        -- HiddenObjects must be exported so we can test UseUSDVisibility.
+        exportOptions.HiddenObjects = true
+        
+        -- Test UseUSDVisibility = true
+        exportOptions.UseUSDVisibility = true
+        local exportPath = (output_prefix + "use_usd_visibility_on.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        box1Prim = stage.GetPrimAtPath("/Box1")
+        local xformable = pyUsdGeom.Xformable(box1Prim)
+        local visibilityAttr = xformable.GetVisibilityAttr()
+        local visibility = (visibilityAttr.Get())
+        assert_equal "invisible" visibility message:"The exported box should have been flagged as invisible."
+        
+        -- Test UseUSDVisibility = false
+        exportOptions.UseUSDVisibility = false
+        local exportPath = (output_prefix + "use_usd_visibility_off.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        box1Prim = stage.GetPrimAtPath("/Box1")
+        local xformable = pyUsdGeom.Xformable(box1Prim)
+        local visibilityAttr = xformable.GetVisibilityAttr()
+        local visibility = (visibilityAttr.Get())
+        assert_equal "inherited" visibility message:"The exported box should should not have been flagged invisible, UseUSDVisibility is false."
+    ),
+    
+    function check_usd_view_opened exportPath = (
+        -- Usdview is started via python, we should find a python process with the exported USD file
+        -- somewhere in its arguments. We output the WMIC result to a file to read it back bellow.
+        local wmicOutputFile = (exportPath + ".wmic.txt")
+        DOSCommand ("WMIC path win32_process where Caption=\"python.exe\" get Commandline,processid | find \"" + exportPath + "\" > \"" + wmicOutputFile + "\"")
+        
+        local usdViewOpened = false
+        local fileHandle = openFile wmicOutputFile
+        if not eof fileHandle do 
+        (
+            -- Makes sure that the file was actually found.
+            local firstLine =  readLine fileHandle
+            usdViewOpened = (findString firstLine exportPath) != undefined
+            
+            -- We can now close usdview...
+            -- We requested the PID from WMIC, so it will be found at the end of the space seperated string.
+            local tokens = filterString firstLine " "
+            local PID = tokens[tokens.Count]
+            DOSCommand ("taskkill /F /PID " + PID)
+        )
+        return usdViewOpened
+    ),
+    
+    function test_open_in_usdview = (
+        -- WARNING : automation machines need to have formal 3ds Max versions (for each target version)
+        --           in order for the registry keys to be present
+        Teapot()
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        
+        -- Test open in Usdview off.
+        exportOptions.OpenInUsdview = false
+        local exportPath = (output_prefix + "test_do_not_open_in_usdview.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        forceCompleteRedraw()  -- force a running loop in 3ds Max
+        sleep 5 -- Give it some time to open...
+        assert_false (check_usd_view_opened exportPath) message:"Usdview was unexpectedly opened."
+
+        -- Test open in Usdview on.
+        exportOptions.OpenInUsdview = true
+        local exportPath = (output_prefix + "test_open_in_usdview.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        forceCompleteRedraw()  -- force a running loop in 3ds Max
+        sleep 5 -- Give it some time to open...
+        assert_true (check_usd_view_opened exportPath) message:"Usdview was not opened as expected."
+    ),
+    
+    function test_usd_stages_as_references_option = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+            
+        local layerName = "simple_layer_sphere"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage Object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Assign a material to the stage, this material should be ignored.        
+        local dummyMaterial = MaxUsdPreviewSurface()
+        stage.material = dummyMaterial
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.UsdStagesAsReferences = false
+            
+        local exportPath = output_prefix + "export_stage_as_reference_off.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that USD Stage was not exported.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local usdStagePrim = exporterLayerStage.GetPrimAtPath ("/UsdStageObject")
+        assert_false (usdStagePrim.IsValid())
+            
+        -- Now configure USD Stages to export as reference..
+        exportOptions.UsdStagesAsReferences = true
+        exportPath = output_prefix + "export_stage_as_reference_on.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the reference was made.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        sphereRef = exporterLayerStage.GetPrimAtPath ("/UsdStageObject/UsdStageObject_Layer/sphere")
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere)) message:"sphereRef should have been exported as a Sphere."
+        
+        -- Validate that the the material from the 3dsMax scene was not applied.
+        binding = pyUsdShade.MaterialBindingAPI(sphereRef)
+        local matAndRel = binding.ComputeBoundMaterial()
+        assert_false (((matAndRel[1]).GetPrim()).IsValid())
+    ),
+    
+    function test_all_material_conversions_option = (
+        -- Test that an invalid material conversion type.
+        try (
+            local exportOptions = USDExporter.CreateOptions()
+            exportOptions.AllMaterialTargets = #("UsdPreviewSurface", "bingo")
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid material target type should have thrown an exception."
+
+    ),
+        
+    function test_allow_nested_gprims = (
+        -- Base export options for all the tests in this function.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/"
+        exportOptions.FileFormat = #ascii
+        
+        -- UsdGeomMesh
+        (
+            -- Start with allowing nesting.            
+            exportOptions.AllowNestedGprims = true
+            
+            b1 = Box()
+            b2 = Box()
+            b3 = Box()
+            b2.parent = b1
+            b3.parent = b2
+            stageFilename = "mesh_nested_gprims_allowed"
+            local exportPath = output_prefix + (stageFilename + ".usda")
+            
+            status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+                    
+            stage = pyUsd.Stage.Open(exportPath)
+            local box1 = stage.GetPrimAtPath ("/Box001")
+            assert_true (pyUsd.Prim.IsValid(box1))
+            assert_true (box1.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."
+            local box2 = stage.GetPrimAtPath("/Box001/Box002")
+            assert_true (pyUsd.Prim.IsValid(box2))
+            assert_true (box2.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."
+            local box3 = stage.GetPrimAtPath("/Box001/Box002/Box003")
+            assert_true (pyUsd.Prim.IsValid(box3))
+            assert_true (box3.IsA(pyUsdGeom.Mesh)) message:"Box3 should have been exported as a Mesh."       
+                        
+            -- usdchecker should flag this file invalid, as it has nested gprims.
+            assert_false (check_usd_file_valid exportPath)
+            
+            -- re-export, with disallowed nesting
+            exportOptions.AllowNestedGprims = false
+            stageFilename = "mesh_nested_gprims_disallowed"
+            local exportPath = output_prefix + (stageFilename + ".usda")
+            status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+            stage = pyUsd.Stage.Open(exportPath)
+            local box1 = stage.GetPrimAtPath ("/Box001")
+            assert_true (pyUsd.Prim.IsValid(box1))
+            assert_true (box1.IsA(pyUsdGeom.Xform)) message:"box1 should have been exported as a Xform."
+            local box1shape = stage.GetPrimAtPath ("/Box001/Box001_Shape")
+            assert_true (pyUsd.Prim.IsValid(box1shape))
+            assert_true (box1shape.IsA(pyUsdGeom.Mesh)) message:"box1shape should have been exported as a Mesh."       
+            local box2 = stage.GetPrimAtPath ("/Box001/Box002")
+            assert_true (pyUsd.Prim.IsValid(box2))
+            assert_true (box2.IsA(pyUsdGeom.Xform)) message:"box2 should have been exported as a XForm."
+            local box2shape = stage.GetPrimAtPath ("/Box001/Box002/Box002_Shape")
+            assert_true (pyUsd.Prim.IsValid(box2shape))
+            assert_true (box2shape.IsA(pyUsdGeom.Mesh)) message:"box2shape should have been exported as a Mesh."
+            -- Box003 has no children, so no need for a shape prim.
+            local box3 = stage.GetPrimAtPath ("/Box001/Box002/Box003")
+            assert_true (pyUsd.Prim.IsValid(box3))
+            assert_true (box3.IsA(pyUsdGeom.Mesh)) message:"box3 should have been exported as a Mesh."
+            
+            -- usdchecker should flag this file valid
+            assert_true (check_usd_file_valid exportPath)
+            
+            resetMaxFile #noprompt
+        )
+        
+        -- UsdGeomCurves
+        (
+            -- Start with allowing nesting.            
+            exportOptions.AllowNestedGprims = true
+            
+            c1 = Circle()
+            c2 = Circle()
+            c3 = Circle()
+            c2.parent = c1
+            c3.parent = c2
+                        
+            stageFilename = "shape_nested_gprims_allowed"
+            local exportPath = output_prefix + (stageFilename + ".usda")
+            
+            status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+                    
+            stage = pyUsd.Stage.Open(exportPath)
+            local circle1 = stage.GetPrimAtPath ("/Circle001")
+            assert_true (pyUsd.Prim.IsValid(circle1))
+            assert_true (circle1.IsA(pyUsdGeom.Curves)) message:"circle1 should have been exported as a Curves."
+            local circle2 = stage.GetPrimAtPath("/Circle001/Circle002")
+            assert_true (pyUsd.Prim.IsValid(circle2))
+            assert_true (circle2.IsA(pyUsdGeom.Curves)) message:"circle2 should have been exported as a Curves."
+            
+            -- usdchecker should flag this file invalid, as it has nested gprims.
+            assert_false (check_usd_file_valid exportPath)
+            
+            -- re-export, with disallowed nesting
+            exportOptions.AllowNestedGprims = false
+            stageFilename = "shape_nested_gprims_disallowed"
+            local exportPath = output_prefix + (stageFilename + ".usda")
+            status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+            stage = pyUsd.Stage.Open(exportPath)
+            local circle1 = stage.GetPrimAtPath ("/Circle001")
+            assert_true (pyUsd.Prim.IsValid(circle1))
+            assert_true (circle1.IsA(pyUsdGeom.Xform)) message:"Circle001 should have been exported as a Xform."
+            local circle1shape = stage.GetPrimAtPath ("/Circle001/Circle001_Shape")
+            assert_true (pyUsd.Prim.IsValid(circle1shape))
+            assert_true (circle1shape.IsA(pyUsdGeom.Curves)) message:"circle1shape should have been exported as a Curves."
+            local circle2 = stage.GetPrimAtPath ("/Circle001/Circle002")
+            assert_true (pyUsd.Prim.IsValid(circle2))
+            assert_true (circle2.IsA(pyUsdGeom.Xform)) message:"circle2 should have been exported as a Xform.."
+            local circle2shape = stage.GetPrimAtPath ("/Circle001/Circle002/Circle002_Shape")
+            assert_true (pyUsd.Prim.IsValid(circle2shape))
+            assert_true (circle2shape.IsA(pyUsdGeom.Curves)) message:"circle2shape should have been exported as a Curves."
+            -- Circle003 has no children, so no need for a shape prim.
+            local circle3shape = stage.GetPrimAtPath ("/Circle001/Circle002/Circle003")
+            assert_true (pyUsd.Prim.IsValid(circle3shape))
+            assert_true (circle3shape.IsA(pyUsdGeom.Curves)) message:"circle3shape should have been exported as a Curves."
+            
+            -- usdchecker should flag this file valid
+            assert_true (check_usd_file_valid exportPath)
+            
+            resetMaxFile #noprompt
+        )
+    ),
+
+    function test_use_last_resort_USDPreviewSurface_Writer = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/"
+        exportOptions.FileFormat = #ascii
+        exportOptions.UseLastResortUSDPreviewSurfaceWriter = false
+
+        local boxWithMtlX = Box name:"mtlx"
+        boxWithMtlX.pos = [0,0,50] -- just to see it!
+        local mtlx = MaterialXMaterial name:"mtlx1"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtlx.importMaterial mtlxDoc
+        boxWithMtlX.material = mtlx
+
+        exportOptions.AllMaterialTargets = #("UsdPreviewSurface")
+        local exportPath = output_prefix + "UseLastResortUSDPreviewSurfaceWriter.usda"
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        local mtlScope = stage.GetPrimAtPath ("/mtl")
+        assert_true (pyUsd.Prim.IsValid(mtlScope)) message:"/mtl should exist and should be valid"
+        assert_equal 0 ((pyUsd.Prim.GetAllChildren(mtlScope)).count) message:"Didn't expect any children under the mtl prim"
+    ),
+
+    -- Small test to validate the maxscript interface, more testing done in python.
+    -- See options_serialization_test.py
+    function test_serialize = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.Meshes = false
+        jsonString = exportOptions.Serialize()
+        
+        local readOptions = USDExporter.CreateOptionsFromJson(jsonString)
+        assert_false readOptions.Meshes message:"Expected Meshes to be disabled after loading serialized options"		
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(
+        test_export_meshes_option,
+        test_export_shapes_option,
+        test_export_lights_option,
+        test_export_cameras_option,
+        test_export_skin_option,
+        test_bake_object_offset_option,
+        test_up_axis_option,
+        test_ui_options_accessors,
+        test_material_options_ripple,
+        test_file_format_option,
+        test_file_format_versus_extension,
+        test_mtl_layer_path,
+        test_log_options,
+        test_preserve_edge_orientation_option,
+        test_no_file_extension,
+        test_file_extension_uppercase,
+        test_normals_option,
+        test_export_at_time,
+        test_root_prim_path_option,
+        test_export_hidden_objects_option,
+        test_use_usd_visibility_option,
+        test_open_in_usdview,
+        test_mesh_format_option,
+        test_usd_stages_as_references_option,
+        test_all_material_conversions_option,
+        test_allow_nested_gprims,
+        test_use_last_resort_USDPreviewSurface_Writer,
+        test_serialize
+    )
+)
+
+runUsdTestFixture export_options_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_selected_test.ms b/src/Tests/Integration/export_selected_test.ms
new file mode 100644
index 0000000..3219e82
--- /dev/null
+++ b/src/Tests/Integration/export_selected_test.ms
@@ -0,0 +1,195 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyShade = python.import("pxr.UsdShade")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_SELECTED_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_selected_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo"
+        exportOptions.AllowNestedGprims = true
+    ),
+    
+    function test_export_selected = (
+        /* Build a hierarchy to test various cases with : 
+
+                           |-- box3  |-- box5A    
+               |-- box2A --|         |
+        box1 --|           |-- box4--|-- box5B
+               |-- box2B             |
+                                     |-- box5C         
+        */
+
+        box1 = box()
+        box1.name = "box1"
+        box2A = box()
+        box2A.name = "box2A"
+        box2A.parent = box1
+        box2B = box()
+        box2B.name = "box2B"
+        box2B.parent = box1
+        box3 = box()
+        box3.name = "box3"
+        box3.parent = box2A
+        box4 = box()
+        box4.name = "box4"
+        box4.parent = box2A
+        box5A = box()
+        box5A.name = "box5A"
+        box5A.parent = box4
+        box5B = box()
+        box5B.name = "box5B"
+        box5B.parent = box4
+        box5C = box()
+        box5C.name = "box5C"
+        box5C.parent = box4
+        
+        -- Test that the children of selected nodes are not exported.
+        select box1
+        local exportPath = (output_prefix + "children_not_exported.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported."
+        local bindingAPI = pyShade.MaterialBindingAPI(box1Prim)
+        mtlSubsets = bindingAPI.GetMaterialBindSubsets()
+        numberOfChildren = mtlSubsets.count - (box1Prim.GetAllChildren()).count
+        assert_equal numberOfChildren 0 message:"The children of the selected node should not have been exported."
+        clearSelection()
+
+        -- Test that selected nodes that do not have their parent selected are exported at the root level.
+        select box2A
+        exportPath = (output_prefix + "parent_not_selected.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        box2APrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2A.name)
+        assert_true (pyUsd.Prim.IsValid(box2APrim)) message:"box2A was not properly exported to the expected path."
+        clearSelection()
+
+        -- Test complex multi-selection.
+        selectmore  box1 -- Should be exported at /box1
+        selectmore  box4 -- Should be exported at /box4 because /Box2A is not selected
+        selectmore  box5A -- Should be exported at /box4/box5A
+        selectmore  box5C -- Should be exported at /box4/box5C
+
+        exportPath = (output_prefix + "multiselection.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        
+        box4Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box4.name)
+        assert_true (pyUsd.Prim.IsValid(box4Prim)) message:"box4 was not properly exported to the expected path."
+        
+        box5APrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box4.name + "/" + box5A.name)
+        assert_true (pyUsd.Prim.IsValid(box5APrim)) message:"box5A was not properly exported to the expected path."
+
+        -- Make sure the unselected child was not exported 
+        box5BPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box4.name + "/" + box5B.name)
+        assert_false (pyUsd.Prim.IsValid(box5BPrim)) message:"box5B was not selected and should not have been exported."
+        
+        box5CPrim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box4.name + "/" + box5C.name)
+        assert_true (pyUsd.Prim.IsValid(box5CPrim)) message:"box5C was not properly exported to the expected path."
+    ),
+    
+    function test_name_conflicts = (
+        /*
+        By design, when exporting selected nodes only, nodes that have their parents unselected will export at the 
+        root level in the USD file. Therefor, node names that would not conflict when going to USD if the whole scene was 
+        exported will now conflict. In the example bellow, both "boxA" nodes will attempt to export at the USD path /boxA
+        if box1 and box2 are not selected.
+        
+               |-- box1 --|--boxA
+        root --|           
+               |-- box2 --|--boxA
+        
+        This test makes sure that this conflict is handled.
+        */
+        
+        -- Test no name conflict.
+        box1 = box()
+        box1.name = "box1"
+        box2 = box()
+        box2.name = "box2"
+        boxA1 = box()
+        boxA1.name = "boxA"
+        boxA1.parent = box1
+        boxA2 = box()
+        boxA2.name = "boxA"
+        boxA2.parent = box2
+        
+        selectmore  box1 
+        selectmore  box2
+        selectmore  boxA1
+        selectmore  boxA2
+        exportPath = (output_prefix + "no_name_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        box1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        box2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2.name)
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"box1 was not properly exported to the expected path."
+        boxA1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box1.name + "/" + boxA1.name)
+        assert_true (pyUsd.Prim.IsValid(boxA1Prim)) message:"boxA1 was not properly exported to the expected path."
+        boxA2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + box2.name + "/" + boxA2.name)
+        assert_true (pyUsd.Prim.IsValid(boxA2Prim)) message:"boxA2 was not properly exported to the expected path."
+        
+        -- Test with name conflict.
+        deselect box1 
+        deselect box2
+        selectmore boxA1
+        selectmore boxA2
+        exportPath = (output_prefix + "name_conflict.usda")
+        USDExporter.ExportFile exportPath exportOptions:exportOptions contentSource:#selected
+        
+        stage = pyUsd.Stage.Open(exportPath)
+        boxA1Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + boxA1.name)
+        assert_true (pyUsd.Prim.IsValid(boxA1Prim)) message:"boxA1 was not properly exported to the expected path."
+        boxA2Prim = stage.GetPrimAtPath(exportOptions.RootPrimPath + "/" + boxA2.name + "1") -- renamed because of conflict at the root level.
+        assert_true (pyUsd.Prim.IsValid(boxA2Prim)) message:"boxA2 was not properly exported to the expected path."
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_export_selected, test_name_conflicts)
+)
+
+runUsdTestFixture export_selected_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_shapes_tests.ms b/src/Tests/Integration/export_shapes_tests.ms
new file mode 100644
index 0000000..d8da593
--- /dev/null
+++ b/src/Tests/Integration/export_shapes_tests.ms
@@ -0,0 +1,387 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_SHAPES_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_shapes_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+    
+    -- Makes sure that we are able to export all shape object types available to UsdGeom curves.
+    function export_all_shape_types_test = (
+        local allObjects = #()
+        allObjects = for o in Shape.classes where o.creatable collect o
+
+        local expectedShapeObjects = #()
+        for i = 1 to allObjects.count do
+        (
+            -- Align the objects in a grid for easy visual inspection...
+            local x = (mod i 10) * 100
+            local y = ((i / 10) as integer) * 100
+            local obj = (allObjects[i] height:10 length:10 width:10)
+            obj.pos.x = x
+            obj.pos.y = y
+            obj.pos.z = 0
+            append expectedShapeObjects obj                
+        )
+        
+        local exportPath = output_prefix + "export_all_shape_objects.usd"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPrimAtPath("/")
+        assert_equal expectedShapeObjects.count (root.GetAllChildren()).count message:"Unexpected prim count when exporting all shape objects."
+    
+        for i = 1 to expectedShapeObjects.count do (
+            local name = expectedShapeObjects[i].name
+            local objPrim = stage.GetPrimAtPath("/" + pyUsdTf.MakeValidIdentifier(name))
+            assert_true (pyUsd.Prim.IsValid(objPrim)) message:(name + " of class " + ((classOf expectedShapeObjects[i]) as string) + " was not properly exported to a USD prim.")
+            assert_true (objPrim.IsA(pyUsdGeom.Curves)) message:(name + " of class " + ((classOf expectedShapeObjects[i]) as string) + " should have been exported to a curves type prim.")
+        )
+    ),
+    
+    -- Test that all required curve attributes are exported to properly represent the shape in USD.
+    function export_simple_spline_test = (
+        
+        -- Build a simple spline with 3 knots.
+        spline = splineShape name:"spline"
+        -- These are the current default values from Max, just making sure the test wont break if defaults change.
+        spline.steps = 6
+        spline.optimize = true
+        spline.adaptive = false
+        
+        splineIdx = addNewSpline spline
+        addKnot spline splineIdx #smooth #curve [0, 10, 0]
+        addKnot spline splineIdx #smooth #curve [0, 20, 0]
+        addKnot spline splineIdx #smooth #curve [20, 20, 0]
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Shapes = true
+        
+        local exportPath = output_prefix + "export_simple_spline_test.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local splinePrim = stage.GetPrimAtPath("/spline")
+        assert_true (pyUsd.Prim.IsValid(splinePrim)) message:"The spline was not exported to a USD prim as expected."
+        assert_true (splinePrim.IsA(pyUsdGeom.BasisCurves)) message:"The spline prim is not a curve."
+        
+        local splineCurve = pyUsdGeom.BasisCurves(splinePrim)
+        local curveVertexCounts = (splineCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 15 curveVertexCounts[1] message:"Unexpected curve vertex counts."
+        
+        local expectedPoints = #([0, 10, 0],
+            [-1.2244899, 12.040816, 0], 
+            [-2.0408165, 13.877552, 0], 
+            [-2.4489794, 15.510201, 0], 
+            [-2.4489796, 16.938774, 0], 
+            [-2.0408163, 18.163265, 0], 
+            [-1.2244897, 19.183672, 0], 
+            [0, 20, 0], 
+            [1.6326532, 20.612246, 0],
+            [3.67347, 21.02041, 0], 
+            [6.122449, 21.224487, 0], 
+            [8.979592, 21.224491, 0], 
+            [12.244898, 21.020407, 0], 
+            [15.918367, 20.612244, 0], 
+            [20, 20, 0])
+            
+        local points = (splineCurve.GetPointsAttr()).Get()
+        for i = 1 to 15 do (
+            assert_float_equal expectedPoints[i][1] points[i][1] message:"Unexpected curve point position in X."
+            assert_float_equal expectedPoints[i][2] points[i][2] message:"Unexpected curve point position in Y."
+            assert_float_equal expectedPoints[i][3] points[i][3] message:"Unexpected curve point position in Z."
+        )
+        
+        local typeAttr = (splineCurve.GetTypeAttr()).Get()
+        assert_equal "linear" typeAttr message:"The exported curve type should be \"linear\"."
+    ),    
+    
+    -- Make sure the interpolation parameters specified on splines are respected when exporting to USD.
+    function export_splines_interpolation_test = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Shapes = true
+        
+        local circleNode = circle name:"circle"
+        local exportPath = output_prefix + "circle_interpolation_steps_2.usd"
+        
+        circleNode.steps = 2
+        circleNode.optimize = false
+        circleNode.adaptive = false
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        local stage = pyUsd.Stage.Open(exportPath)
+        local circlePrim = stage.GetPrimAtPath("/circle")
+        assert_true (pyUsd.Prim.IsValid(circlePrim)) message:"The circle was not exported to a USD prim as expected."
+        assert_true (circlePrim.IsA(pyUsdGeom.BasisCurves)) message:"The circle prim is not a curve."
+        local circleCurve = pyUsdGeom.BasisCurves(circlePrim)
+        local curveVertexCounts = (circleCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 13 curveVertexCounts[1] message:"Unexpected curve vertex counts with steps = 2."
+            
+        local exportPath = output_prefix + "circle_interpolation_steps_4.usd"
+        circleNode.steps = 4
+        circleNode.optimize = false
+        circleNode.adaptive = false
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local circlePrim = stage.GetPrimAtPath("/circle")
+        assert_true (pyUsd.Prim.IsValid(circlePrim)) message:"The circle was not exported to a USD prim as expected."
+        assert_true (circlePrim.IsA(pyUsdGeom.BasisCurves)) message:"The circle prim is not a curve."
+        local circleCurve = pyUsdGeom.BasisCurves(circlePrim)
+        local curveVertexCounts = (circleCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 21 curveVertexCounts[1] message:"Unexpected curve vertex counts with steps = 4."
+        
+        local exportPath = output_prefix + "circle_interpolation_steps_adaptive.usd"
+        circleNode.steps = 4
+        circleNode.optimize = false
+        circleNode.adaptive = true
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local circlePrim = stage.GetPrimAtPath("/circle")
+        assert_true (pyUsd.Prim.IsValid(circlePrim)) message:"The circle was not exported to a USD prim as expected."
+        assert_true (circlePrim.IsA(pyUsdGeom.BasisCurves)) message:"The circle prim is not a curve."
+        local circleCurve = pyUsdGeom.BasisCurves(circlePrim)
+        local curveVertexCounts = (circleCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 129 curveVertexCounts[1] message:"Unexpected curve vertex counts with adaptive steps."
+    
+        -- To test the optimize property, need something other than a circle, as it would have no colinear points.
+        resetMaxFile #noprompt
+            
+        local rectNode = rectangle name:"rectangle"
+            
+        local exportPath = output_prefix + "rect_interpolation_steps_optimize_on.usd"
+        rectNode.steps = 4
+        rectNode.optimize = true
+        rectNode.adaptive = false
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectPrim = stage.GetPrimAtPath("/rectangle")
+        assert_true (pyUsd.Prim.IsValid(rectPrim)) message:"The rectangle was not exported to a USD prim as expected."
+        assert_true (rectPrim.IsA(pyUsdGeom.BasisCurves)) message:"The rectangle prim is not a curve."
+        local rectCurve = pyUsdGeom.BasisCurves(rectPrim)
+        local curveVertexCounts = (rectCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 5 curveVertexCounts[1] message:"Unexpected curve vertex counts with optimize ON."
+        
+        local exportPath = output_prefix + "rect_interpolation_steps_optimize_off.usd"
+        rectNode.steps = 4
+        rectNode.optimize = false
+        rectNode.adaptive = false
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local rectPrim = stage.GetPrimAtPath("/rectangle")
+        assert_true (pyUsd.Prim.IsValid(rectPrim)) message:"The rectangle was not exported to a USD prim as expected."
+        assert_true (rectPrim.IsA(pyUsdGeom.BasisCurves)) message:"The rectangle prim is not a curve."
+        local rectCurve = pyUsdGeom.BasisCurves(rectPrim)
+        local curveVertexCounts = (rectCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 21 curveVertexCounts[1] message:"Unexpected curve vertex counts with optimize OFF."
+    ),
+    
+    function export_animated_spline_test = (
+        
+        circleNode = circle name:"circle"
+        circleNode.steps = 0 -- Simplest possible interpolation, results in 4 segments for a circle.
+        circleNode.optimize = false 
+        circleNode.adaptive = false
+        -- Animate the radius of the circle...
+        with animate on (
+            at time 0 circleNode.radius = 1
+            at time 2 circleNode.radius = 10
+        )
+        
+        -- Export the animation...
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.TimeMode = #frameRange
+        exportOptions.StartFrame = 0
+        exportOptions.EndFrame = 2
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Shapes = true
+        
+        local exportPath = output_prefix + "export_animated_spline_test.usd"
+                
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local circlePrim = stage.GetPrimAtPath("/circle")
+        assert_true (pyUsd.Prim.IsValid(circlePrim)) message:"The circle was not exported to a USD prim as expected."
+        assert_true (circlePrim.IsA(pyUsdGeom.BasisCurves)) message:"The circle prim is not a curve."
+        
+        local circleCurve = pyUsdGeom.BasisCurves(circlePrim)
+
+        local expectedPoints = #(#([1, 0, 0],[0, 1, 0], [-1, 0, 0], [0, -1, 0]), -- timeCode 0
+            #([5.5, 0, 0],[0, 5.5, 0], [-5.5, 0, 0], [0, -5.5, 0]), -- timeCode 1
+            #([10, 0, 0],[0, 10, 0], [-10, 0, 0], [0, -10, 0])) -- timeCode 2
+        
+        for timeCode = 0 to 2 do (
+            local points = (circleCurve.GetPointsAttr()).Get(timeCode)
+            for i = 1 to 4 do (
+                assert_float_equal expectedPoints[timeCode+1][i][1] points[i][1] message:("Unexpected curve point position in X at time " + timeCode as string)
+                assert_float_equal expectedPoints[timeCode+1][i][2] points[i][2] message:("Unexpected curve point position in Y at time " + timeCode as string)
+                assert_float_equal expectedPoints[timeCode+1][i][3] points[i][3] message:("Unexpected curve point position in Z  at time " + timeCode as string)
+            )
+        )
+    ),
+    
+    function export_spline_offset = (
+        -- Create a hierarchy with transforms and object offsets.
+        local parent = PointHelperObj name:"parent"
+        parent.position = [-10,-10,-10]
+        parent.rotation = (quat  0.3 0 0 0.3)
+        
+        -- Build a simple spline with 2 knots.
+        spline = splineShape name:"spline"
+        spline.parent = parent
+        
+        -- No steps -> We get a single, line from point to point.
+        spline.steps = 0
+        
+        splineIdx = addNewSpline spline
+        addKnot spline splineIdx #smooth #curve [0, 0, 0]
+        addKnot spline splineIdx #smooth #curve [0, 10, 0]
+        
+        -- Give it an offset transform.
+        spline.objectOffsetPos = [4,5,6]
+        spline.objectOffsetScale = [4,5,6]
+        spline.objectOffsetRot = quat 4 5 6 1
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/"
+        exportOptions.FileFormat = #ascii
+        exportOptions.Shapes = true
+        
+        local exportPath = output_prefix + "spline_with_offset.usd"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local xformPrim = stage.GetPrimAtPath("/parent/spline")
+        local splinePrim = stage.GetPrimAtPath("/parent/spline/spline_Shape")
+        
+        assert_true (pyUsd.Prim.IsValid(xformPrim)) message:("The xform prim was not properly exported, to support the object offset.")
+        assert_true (pyUsd.Prim.IsValid(splinePrim)) message:("The spline prim was not properly exported.")
+        
+        local scaleOffset = scaleMatrix spline.objectOffsetScale
+        local rotationOffset = spline.objectOffsetRot as matrix3
+        local translationOffset = transMatrix spline.objectOffsetPos
+        local offsetTransform = scaleOffset * rotationOffset * translationOffset
+
+        local xformable = pyUsdGeom.Xformable(xformPrim)
+        assert_true (compareUsdAndMaxTransforms (xformable.ComputeLocalToWorldTransform(0)) spline.transform) message:"Incorrect transform applied on the parent xform."
+        
+        splineXformable = pyUsdGeom.Xformable(splinePrim)
+        assert_true (compareUsdAndMaxTransforms (splineXformable.GetLocalTransformation()) offsetTransform) message:"Unexpected object offset transform applied on the prim."
+    ),
+    
+    function export_spline_offset_with_wsm = (
+        -- Create a hierarchy with transforms and object offsets.
+        local parent = PointHelperObj name:"parent"
+        parent.position = [-10,-10,-10]
+        parent.rotation = (quat  0.3 0 0 0.3)
+        
+        -- Build a simple spline with 2 knots.
+        spline = splineShape name:"spline"
+        spline.parent = parent
+        
+        -- No steps -> We get a single, line from point to point.
+        spline.steps = 0
+        
+        splineIdx = addNewSpline spline
+        addKnot spline splineIdx #smooth #curve [0, 0, 0]
+        addKnot spline splineIdx #smooth #curve [0, 10, 0]
+        
+        -- Give it an offset transform.
+        spline.objectOffsetPos = [4,5,6]
+        spline.objectOffsetScale = [4,5,6]
+        spline.objectOffsetRot = quat 4 5 6 1
+                
+        -- Create a Noise space warp and bind it to the box.
+        local sw = SpaceNoise()        
+        sw.position = [20,30,40] 
+        sw.rotation = (quat  0 0.707 0 0.707)
+        sw.strength = [1000,0,0]
+        bindSpaceWarp spline sw
+                
+        local exportOptions = USDExporter.CreateOptions()
+
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Shapes = true
+        local exportPath = output_prefix + "spline_with_offset_and_wsm.usd"
+        
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local splinePrim = stage.GetPrimAtPath("/parent/spline")
+    
+        assert_true (pyUsd.Prim.IsValid(splinePrim)) message:("The spline prim was not properly exported.")
+        assert_true (splinePrim.IsA(pyUsdGeom.BasisCurves)) message:"The spline prim is not a curve."
+        
+        local splineCurve = pyUsdGeom.BasisCurves(splinePrim)
+        local curveVertexCounts = (splineCurve.GetCurveVertexCountsAttr()).Get()
+        assert_equal 2 curveVertexCounts[1] message:"Unexpected curve vertex counts."
+        
+        local expectedPoints = #([4, 5, -34.4081],
+            [37.3333, -11.6667, 34.4867])
+            
+        local points = (splineCurve.GetPointsAttr()).Get()
+        for i = 1 to 2 do (
+            assert_float_equal expectedPoints[i][1] points[i][1] message:"Unexpected curve point position in X."
+            assert_float_equal expectedPoints[i][2] points[i][2] message:"Unexpected curve point position in Y."
+            assert_float_equal expectedPoints[i][3] points[i][3] message:"Unexpected curve point position in Z."
+        )
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(export_all_shape_types_test,
+        export_splines_interpolation_test,
+        export_simple_spline_test,
+        export_animated_spline_test,
+        export_spline_offset,
+        export_spline_offset_with_wsm)
+)
+
+runUsdTestFixture export_shapes_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_skeleton_test.ms b/src/Tests/Integration/export_skeleton_test.ms
new file mode 100644
index 0000000..649b069
--- /dev/null
+++ b/src/Tests/Integration/export_skeleton_test.ms
@@ -0,0 +1,707 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdSkel = python.import("pxr.UsdSkel")
+pyUsdGeom = python.import("pxr.UsdGeom")
+
+struct export_skin_test
+(
+    private 
+    output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_SKIN_TESTS_",
+    exportOptions = USDExporter.CreateOptions(),
+    initialUnits = units.SystemType,
+    initialScale = units.SystemScale,
+    wasAutoKeyOn = false,
+
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+
+        local rangeStart = 0
+        local rangeEnd = 30
+
+        animationRange = interval rangeStart rangeEnd
+        exportOptions.TimeMode = #animationRange
+    ),
+
+    private
+    function createBone trans = (
+        local b = (BoneSys.createBone trans.row4 (trans.row4 + [0, 0, 4]) [0, 0, 1])
+        b.showLinks = true
+        b.showLinksOnly = off
+        bone_size = 1
+        b.width = bone_size
+        b.height = bone_size
+        b.transform = trans
+        b.length = 3
+        b.boneEnable = true        
+        return b
+    ),
+
+    private
+    function createBonesArray numOfBones = (
+        newBones = #()
+        pos = [0,0,0]
+
+        for i = 1 to numOfBones do (
+            local trans = matrix3 [1,0,0] [0,1,0] [0,0,1] pos
+            local b = createBone trans
+
+            if newBones.count > 0 then (
+                b.parent = newBones[newBones.count]
+            )
+            append newBones b
+            pos += [0,0,24]
+        )
+
+        return newBones
+    ),
+
+    private
+    function skinBonesToCharacter bonesArray maxNode = (
+        sk = skin()
+        addModifier maxNode sk
+
+        u = 0
+        for i = 1 to bonesArray.count do (
+            local b = bonesArray[i]
+            if i == bonesArray.count then u = -1 -- '-1' here forces an update and redraw
+            skinOps.addbone sk b u node:maxNode
+        )
+
+        select maxNode
+        max modify Mode
+
+        skinOps.voxelWeighting sk 0 0.2 4 256 false true node:maxNode
+    ),
+    
+    private
+    function createCharMesh = 
+    (
+        local char = Cylinder radius:6 height:36 heightsegs:30 pos:[0,0,0] isSelected:on
+
+        volSel1 = VolumeSelect level:2 volume:5
+        addModifier char volSel1
+
+        volSel2 = VolumeSelect level:2 volume:5 method:1 matID:2
+        addModifier char volSel2
+        addModifier char (DeleteMesh())    
+
+        volSel3 = VolumeSelect level:0 method:0
+        addModifier char volSel3
+
+        t = Taper amount:1.72 curve:-4.75 effectaxis:0 primaryaxis:2 
+        addModifier char t
+
+        h = Sphere radius:4 segments:32 pos:[0,0,48]
+
+        body = Cylinder radius:4.5 height:15 heightsegs:24 pos:[0,0,28]
+        addModifier body volSel1
+        addModifier body volSel2
+        addModifier body (DeleteMesh())        
+
+        arm1 = Cylinder radius:4.5 height:15 heightsegs:24  pos:[0,0,28] height:36 dir:[0.751061,0,0.660233]
+        addModifier arm1 volSel1
+        addModifier arm1 volSel2
+        addModifier arm1 (DeleteMesh())        
+
+        arm2 = Cylinder radius:4.5 height:15 heightsegs:24  pos:[0,0,28] height:36 dir:[-0.719323,0,0.694675]
+        addModifier arm2 volSel1
+        addModifier arm2 volSel2
+        addModifier arm2 (DeleteMesh())        
+
+        convertToPoly char
+        polyop.attach char body
+        polyop.attach char arm1
+        polyop.attach char h
+        polyop.attach char arm2
+        
+        return char
+    ),
+
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+        wasAutoKeyOn = maxops.autoKeyDefaultKeyOn
+        maxops.autoKeyDefaultKeyOn = true
+
+        exportOptions.FileFormat = #ascii
+        exportOptions.Skin = true
+        exportOptions.Meshes = true
+        exportOptions.RootPrimPath = "/root"
+    ),
+
+    function export_skin_animation_test = 
+    (
+        newBones = createBonesArray 3
+
+        b = createBone (matrix3 [0.707107,0,-0.707107] [0,1,0] [0.707107,0,0.707107] [24,0,50]) 
+        b.parent = newBones[newBones.count-1]
+        append newBones b
+
+        b = createBone(matrix3 [0.707107,0,0.707107] [0,1,0] [-0.707107,0,0.707107] [-24,0,50])
+        b.parent = newBones[newBones.count - 2]
+        append newBones b
+
+        local ub = createBone (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,72])
+        ub.name = "unused_bone"
+        
+        animate on (
+            in coordsys world (
+                at time 30 newBones[2].rotation = (quat 0.275154 0 0 0.9614)
+                at time 30 newBones[3].rotation = (quat 0.562967 0 0 0.826479)
+                at time 30 newBones[4].rotation =  (quat 0.229887 0.528306 0.151202 0.803233)
+                at time 30 newBones[5].rotation =  (quat 0.223103 -0.562692 -0.161043 0.779531)
+            )
+        )
+
+        char = createCharMesh()
+        skinBonesToCharacter newBones char
+
+        local exportPath = output_prefix + "export_simple_skin_animation_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Cylinder001")
+        local skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+
+        assert_true (meshPrim.IsA(pyUsdGeom.Mesh)) message: "The animated mesh Prim should have been exported as a mesh prim"
+        assert_false ((meshPrim.GetAttribute("extent")).HasAuthoredValue()) message: "Skinned meshes shouldn't have the extents attribute"
+        skelRootExtentsAttr = ((stage.GetPrimAtPath(skelRootPath)).GetAttribute("extent"))
+
+        -- testing half of the time samples in the file
+        expectedRootExtents =  #(#(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -6.0000005, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -7.428551, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -9.402174, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -11.514503, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.02168, -13.734598, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.022, -16.031898, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-29.8008, -18.376095, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-30.6016, -20.737707, 0), #(30.009243, 6.0000005, 56.24527)), #(#(-31.417, -23.088703, 0), #(30.2875, 6.0000005, 56.24527)), #(#(-32.2398, -25.402304, 0), #(30.985, 6.0000005, 56.24527)))
+
+        for timeCode = 1 to 15 do
+        (
+            assert_true (compare2dMatrix ((skelRootExtentsAttr.Get(timeCode))) expectedRootExtents[timeCode] 2 3)
+        )
+
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        local usdSkelPurposeAttribute = (skelPrim.GetAttribute("purpose")).Get()
+        assert_equal usdSkelPurposeAttribute "guide" message:"Skeleton prim purpose should have been set to guide"
+
+        local skel = pyUsdSkel.Skeleton(skelPrim)
+        local bindTransform = (skel.GetBindTransformsAttr()).Get()
+        local restTransform = (skel.GetRestTransformsAttr()).Get()
+        local expectedBindTransform = #(#( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 0, 1) ), #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 24, 1) ), #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 48, 1) ), #( #(0.707107, 0, -0.707107, 0), #(0, 1, 0, 0), #(0.707107, 0, 0.707107, 0), #(24, 0, 50, 1) ), #( #(0.707107, 0, 0.707107, 0), #(0, 1, 0, 0), #(-0.707107, 0, 0.707107, 0), #(-24, 0, 50, 1) ))
+        local expectedRestTransform = #(#( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 0, 1) ), #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 24, 1) ), #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 24, 1) ), #( #(0.707107, 0, -0.707107, 0), #(0, 1, 0, 0), #(0.707107, 0, 0.707107, 0), #(24, 0, 26, 1) ), #( #(0.707107, 0, 0.707107, 0), #(0, 1, 0, 0), #(-0.707107, 0, 0.707107, 0), #(-24, 0, 26, 1) ))
+
+        for i = 1 to expectedBindTransform.count do 
+        (
+            assert_true (compare2dMatrix expectedBindTransform[i] bindTransform[i] 4 4) message: ("Unexpected bind transform at indice: " + (i as string))
+            assert_true (compare2dMatrix expectedRestTransform[i] restTransform[i] 4 4) message: ("Unexpected rest transform at indice: " + (i as string))
+        )
+
+        local skelPrimJointsAttribute = (skelPrim.GetAttribute("joints")).Get()
+        local animPrimJointsAttribute = (animPrim.GetAttribute("joints")).Get()
+        assert_equal 5 skelPrimJointsAttribute.count message:"Didn't export the correct number of joints"    
+        assert_equal skelPrimJointsAttribute.count animPrimJointsAttribute.count message:"Animation and Skeleton don't have the same amount of joints exported"
+        for i = 1 to skelPrimJointsAttribute.count do (
+            assert_equal skelPrimJointsAttribute[i] animPrimJointsAttribute[i] message:("Animation and Skeleton don't match " + skelPrimJointsAttribute[i] + ";" + animPrimJointsAttribute[i])
+            assert_true (skelPrimJointsAttribute[i] != "root/unused_bone") message: "'unused_bone' shouldn't have been exported as a bone"
+        )
+
+        local meshBindingApi = pyUsdSkel.BindingAPI.Get stage meshPrimPath
+        local meshSkelRel = meshBindingApi.GetSkeletonRel()
+        local meshSkelTargets = meshSkelRel.GetTargets()
+        assert_equal 1 meshSkelTargets.count Message: "There should only exist 1 skel relationship"
+        assert_true (meshSkelTargets[1] as string == skelPrim.GetPath() as string) Message: "SkelTarget doesn't match skel path"
+
+        local skelBindingApi = pyUsdSkel.BindingAPI.Get stage (skelPrim.GetPath())
+        assert_true (animPrim.GetPath() as string == (skelBindingApi.GetAnimationSource()).GetPath() as string) Message:"Animation binding doesn't match the animation prim"
+
+        local geomBindTransform = (meshPrim.GetAttribute("primvars:skel:geomBindTransform")).Get()
+        local expectedGeomBindTransform = #(#(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 0, 1))
+        assert_true (compare2dMatrix geomBindTransform expectedGeomBindTransform 4 4) message: "Unexpected geomBindTransform prim var for the mesh!"
+
+        local jointsIndicesAttribute = (meshPrim.GetAttribute("primvars:skel:jointIndices")).Get()
+        local jointsWeightsAttribute = (meshPrim.GetAttribute("primvars:skel:jointWeights")).Get()
+
+        assert_equal jointsIndicesAttribute.count jointsWeightsAttribute.count Message: "Skel joints weights and indices must be of equal size"
+    
+        -- export the scene again, as a single frame that is not the first one
+
+        sliderTime  = 30
+        exportOptions.TimeMode = #current
+        exportPath = output_prefix + "export_simple_skin_animation_single_frame_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        stage = pyUsd.Stage.Open(exportPath)
+        skelRootPath = "/root"
+        meshPrimPath = (skelRootPath + "/Cylinder001")
+        skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        meshPrim = stage.GetPrimAtPath meshPrimPath
+        skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        skel = pyUsdSkel.Skeleton(skelPrim)
+        bindTransform = (skel.GetBindTransformsAttr()).Get()
+        restTransform = (skel.GetRestTransformsAttr()).Get()
+
+        expectedRestTransform = #( #( #(1, 0, 0, 0), #(0, 1, 0, 0), #(0, 0, 1, 0), #(0, 0, 0, 1) ), #( #(1, 0, 0, 0), #(0, 0.848581, 0.529066, 0), #(0, -0.529066, 0.848581, 0), #(0, -12.6976, 20.3659, 1) ), #( #(1, 0, 0, 0), #(0, 0.8030238006576558, 0.595945949627975, 0), #(0, -0.595945949627975, 0.8030238006576558, 0), #(0, -28.6053597795478, 14.545132729964774, 1) ), #( #(0.396062, 9.976194554339735e-7, -0.9182241033048522, 0), #(5.0568e-7, 0.9999996804851743, 0.0000013776462479131446, 0), #(0.918224, -0.0000012651233093630143, 0.3960619779770332, 0), #(37.97, -6.2744763502566965, 15.936383332557416, 1) ), #( #(0.314886, -1.2053993414529174e-8, 0.949129200839234, 0), #(-5.06011e-7, 1, 5.551115123125783e-17, 0), #(-0.94913, -5.906796775312362e-7, 0.31488604212035654, 0), #(-40.4795, -8.078664287019828, 13.042416221523265, 1) ))
+
+        -- the bind transform is expected to be the same, when exporting any frame, the rest transform will change depending on the mesh position for the frame
+        for i = 1 to expectedBindTransform.count do 
+        (
+            assert_true (compare2dMatrix expectedBindTransform[i] bindTransform[i] 4 4) message: "Unexpected bind transform when exporting a single frame"
+            assert_true (compare2dMatrix expectedRestTransform[i] restTransform[i] 4 4) message: "Unexpected rest transform when exporting a single frame"
+        )
+
+        anim = pyUsdSkel.Animation(animPrim)
+        animScales = (anim.GetScalesAttr()).Get()
+        animTranslations = (anim.GetTranslationsAttr()).Get()
+        animRotations = (anim.GetRotationsAttr()).Get()
+
+        assert_equal 5 animRotations.count message: "Didn't export all expected rotations when exporting a single frame!"
+
+        expectedScales = #(#(1, 1, 1), #(1, 1, 1), #(1, 1, 1), #(1, 1, 1), #(1, 1, 1))
+        expectedTranslations = #(#(0, 0, 0), #(0, -12.6976, 20.3659), #(0, -28.60536, 14.545133), #(37.97, -6.2744765, 15.936383), #(-40.4795, -8.078664, 13.042417))
+
+        for i = 1 to expectedScales.count do (
+            for x = 1 to 3 do (
+                assert_float_equal (animScales[i])[x] (expectedScales[i])[x] tolerance:1e-5 message: "Animation Scale attribute didn't match when exporting a single frame!"
+                assert_float_equal (animTranslations[i])[x] (expectedTranslations[i])[x] tolerance:1e-5 message: "Animation Translation attribute didn't match when exporting a single frame!"
+            )
+        )
+    ),
+
+    function export_skin_invalid_root_test = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 1
+
+        char = createCharMesh()
+        skinBonesToCharacter newBones char
+
+        exportOptions.RootPrimPath = "/"
+        local exportPath = output_prefix + "export_skin_invalid_root_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+    ),
+
+    function export_multiple_bind_transform_test = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        slidertime = 0
+
+        newBones = createBonesArray 3
+        -- bind bones to the mesh before its been transform
+        char = createCharMesh()
+        skinBonesToCharacter newBones char
+
+        newBones[2].pos = [2, 3, 4]
+        newBones[3].pos = [5, 6, 7]
+
+        exportOptions.TimeMode = #current
+        exportPath = output_prefix + "export_bind_transformed_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        stage = pyUsd.Stage.Open(exportPath)
+        skelRootPath = "/root"
+        skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+
+        skel = pyUsdSkel.Skeleton(skelPrim)
+        -- cache bind transform for bones before they've been transformed
+        local beforeTransformBindTransform = (skel.GetBindTransformsAttr()).Get()
+
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 3
+
+        -- bind bones to the mesh before its been transform
+        char = createCharMesh()
+        skinBonesToCharacter newBones char
+
+        newBones[2].pos = [2, 3, 4]
+        newBones[3].pos = [5, 6, 7]
+
+        -- now bind the same bones (after being transformed to a different mesh)
+        -- USD can't have multiple bind transforms, so one bind transform will be prevalent, breaking the other
+        char2 = createCharMesh()
+        char2.name = "char2"
+        skinBonesToCharacter newBones char2
+
+        exportOptions.TimeMode = #current
+        exportPath = output_prefix + "export_multiple_bind_transform_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        stage = pyUsd.Stage.Open(exportPath)
+        skelRootPath = "/root"
+        skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+
+        skel = pyUsdSkel.Skeleton(skelPrim)
+        local afterTransformBindTransform = (skel.GetBindTransformsAttr()).Get()
+
+        -- for this test, position 1 remained the same, then we'll test i = 2 and i = 3
+        -- in this case, the bind transform after transform was kept thus being different from the one before
+        for i = 2 to beforeTransformBindTransform.count do 
+        (
+            assert_false (compare2dMatrix afterTransformBindTransform[i] beforeTransformBindTransform[i] 4 4) message: ("Unexpected bind transform when exporting a single frame at i = " + (i as string))
+        )
+    ),
+
+    function export_skeleton_bone_weights_test = 
+    (
+        newBones = createBonesArray 1
+
+        -- create a local box to be used as a bone
+        local bb = box()
+        bb.pos = [0,0,24]
+        bb.parent = newBones[1]
+        append newBones bb
+
+        animate on (
+            in coordsys world (
+                at time 30 newBones[2].rotation = (quat 0.275154 0 0 0.9614)
+            )
+        )
+
+        -- create a simple cylinder character
+        local char = Cylinder radius:6 height:36 heightsegs:30 pos:[0,0,0] isSelected:on
+        convertToPoly char
+
+        skinBonesToCharacter newBones char
+
+        local exportPath = output_prefix + "export_skeleton_bone_weights_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local expectedWeights = #(0.9999967, 0.0000032524124, 0.9999967, 0.0000032825183, 0.9999968, 0.0000032389332, 0.99999666, 0.0000033105077, 0.99999684, 0.0000031422517, 0.9999968, 0.0000032153623, 0.99999684, 0.0000031887573, 0.9999966, 0.0000033778902, 0.99999654, 0.0000034555042, 0.99999607, 0.000003915311, 0.99999624, 0.0000037605273, 0.9999962, 0.000003803032, 0.9999962, 0.0000038293583, 0.99999577, 0.0000042537345, 0.9999959, 0.000004113259, 0.9999958, 0.0000041949083, 0.9999962, 0.000003795831, 0.999996, 0.0000039797583, 0.9999961, 0.000003854701, 0.999996, 0.0000040114605, 0.9999963, 0.0000036713882, 0.9999964, 0.000003591174, 0.9999966, 0.0000033790561, 0.9999966, 0.000003384658, 0.99999595, 0.0000040825516, 0.99999595, 0.000004042248, 0.9999959, 0.0000041202456, 0.9999958, 0.000004145737, 0.99999595, 0.000004035201, 0.999996, 0.000003970759, 0.99999607, 0.000003963262, 0.9999959, 0.0000041121725, 0.99999547, 0.000004516164, 0.99999505, 0.00000493347, 0.99999505, 0.0000049649607, 0.99999523, 0.0000047397284, 0.99999523, 0.000004789697, 0.99999493, 0.000005072504, 0.9999948, 0.0000051683814, 0.9999948, 0.000005167787, 0.9999949, 0.0000051285897, 0.99999505, 0.000004968006, 0.9999951, 0.000004869929, 0.999995, 0.000004981978, 0.99999505, 0.0000049192518, 0.9999955, 0.000004488759, 0.9999959, 0.0000041359094, 0.9999959, 0.0000041049634, 0.999994, 0.000006047738, 0.9999939, 0.0000060564157, 0.99999386, 0.000006142562, 0.9999938, 0.000006196997, 0.9999939, 0.0000060877596, 0.99999404, 0.000005964183, 0.9999941, 0.0000058752944, 0.9999939, 0.0000060620882, 0.9999932, 0.0000067839705, 0.99999243, 0.0000075875396, 0.99999225, 0.000007771255, 0.99999255, 0.0000074373493, 0.9999927, 0.0000072941707, 0.99999255, 0.000007444806, 0.9999925, 0.00000750143, 0.99999243, 0.000007576102, 0.9999923, 0.000007708176, 0.9999924, 0.0000076036986, 0.99999255, 0.000007473218, 0.99999243, 0.000007578149, 0.99999255, 0.0000074784366, 0.9999932, 0.0000067850515, 0.9999939, 0.000006074035, 0.99999404, 0.0000059471904, 0.9999904, 0.000009609695, 0.9999903, 0.000009724985, 0.99999017, 0.000009849422, 0.9999901, 0.0000099062545, 0.9999902, 0.000009783932, 0.9999904, 0.000009624896, 0.9999905, 0.000009449576, 0.99999034, 0.000009684574, 0.99998915, 0.00001085843, 0.99998766, 0.000012317398, 0.9999871, 0.000012881385, 0.9999874, 0.000012559339, 0.9999877, 0.000012273235, 0.9999878, 0.000012209755, 0.99998796, 0.000012048813, 0.99998784, 0.000012137201, 0.99998754, 0.000012472246, 0.9999875, 0.00001250755, 0.99998754, 0.000012465268, 0.9999874, 0.000012574503, 0.9999878, 0.000012217942, 0.999989, 0.00001101921, 0.9999902, 0.000009795896, 0.9999906, 0.000009444207, 0.9999842, 0.000015792872, 0.999984, 0.000015981299, 0.99998385, 0.000016177779, 0.9999837, 0.000016242917, 0.9999839, 0.000016081414, 0.99998415, 0.000015875044, 0.9999844, 0.000015624562, 0.99998397, 0.000016007561, 0.9999821, 0.000017884726, 0.9999797, 0.000020312924, 0.99997854, 0.000021464772, 0.9999787, 0.00002125178, 0.9999791, 0.000020901916, 0.9999794, 0.000020618894, 0.99997985, 0.000020118157, 0.9999798, 0.000020178495, 0.9999792, 0.000020787304, 0.999979, 0.000020995589, 0.9999789, 0.000021071313, 0.9999788, 0.000021193466, 0.9999797, 0.000020344116, 0.99998176, 0.000018229961, 0.9999837, 0.000016253127, 0.9999844, 0.000015621752, 0.999973, 0.000027000913, 0.99997276, 0.00002723289, 0.99997246, 0.00002751673, 0.99997234, 0.000027627271, 0.9999726, 0.000027418042, 0.99997294, 0.000027081556, 0.9999733, 0.000026698934, 0.9999725, 0.000027480262, 0.9999693, 0.000030668853, 0.9999653, 0.000034691, 0.9999633, 0.000036715628, 0.9999634, 0.00003661312, 0.9999638, 0.00003616648, 0.9999645, 0.00003553582, 0.9999655, 0.00003451951, 0.99996537, 0.00003464871, 0.99996424, 0.00003576841, 0.99996376, 0.000036239417, 0.9999635, 0.000036473473, 0.99996346, 0.000036550013, 0.99996525, 0.0000347521, 0.999969, 0.000030967865, 0.9999723, 0.000027741191, 0.99997324, 0.000026784186, 0.9999512, 0.00004882425, 0.9999511, 0.00004888775, 0.9999507, 0.000049290393, 0.9999503, 0.00004969543, 0.99995023, 0.000049781458, 0.9999507, 0.00004930577, 0.99995154, 0.000048428796, 0.99995, 0.0000500048, 0.99994415, 0.000055876513, 0.99993724, 0.00006275385, 0.99993384, 0.00006615027, 0.9999339, 0.00006610925, 0.9999346, 0.00006540249, 0.999936, 0.00006400968, 0.9999381, 0.00006191593, 0.9999377, 0.000062281986, 0.99993545, 0.00006456509, 0.9999344, 0.00006561132, 0.9999338, 0.00006624309, 0.9999336, 0.00006640674, 0.9999372, 0.00006281259, 0.99994427, 0.000055736582, 0.9999498, 0.000050215276, 0.9999513, 0.00004872373, 0.9999066, 0.00009339614, 0.99990803, 0.00009199515, 0.99990803, 0.000091958624, 0.99990684, 0.00009314453, 0.9999052, 0.00009474334, 0.9999049, 0.000095105475, 0.9999067, 0.00009330138, 0.9999042, 0.000095800926, 0.999893, 0.00010697265, 0.99988055, 0.000119436154, 0.99987507, 0.00012495903, 0.99987537, 0.00012461057, 0.99987686, 0.000123164, 0.99987984, 0.00012015607, 0.9998841, 0.00011585586, 0.9998834, 0.0001165909, 0.9998787, 0.000121313096, 0.99987626, 0.0001237235, 0.99987483, 0.00012519877, 0.9998741, 0.00012589454, 0.9998805, 0.00011952943, 0.9998937, 0.000106264946, 0.99990374, 0.00009623997, 0.99990606, 0.000093946495, 0.999814, 0.00018604373, 0.9998194, 0.00018057678, 0.999822, 0.00017795952, 0.99981993, 0.00018006697, 0.9998149, 0.00018507353, 0.9998117, 0.00018831878, 0.99981403, 0.00018594199, 0.99981, 0.00019001696, 0.9997888, 0.00021118713, 0.9997648, 0.00023521189, 0.999755, 0.00024499957, 0.9997566, 0.00024341136, 0.9997604, 0.00023962786, 0.99976736, 0.0002326578, 0.99977595, 0.00022406635, 0.99977404, 0.00022594759, 0.9997642, 0.00023578454, 0.9997587, 0.00024126074, 0.9997559, 0.00024406618, 0.9997552, 0.00024478568, 0.9997669, 0.00023309868, 0.999791, 0.00020897937, 0.99980915, 0.00019085742, 0.9998124, 0.0001875471, 0.9996104, 0.00038958172, 0.9996237, 0.00037630953, 0.99963254, 0.0003674648, 0.9996295, 0.00037050823, 0.99961895, 0.00038107854, 0.9996116, 0.00038839912, 0.9996157, 0.00038424614, 0.99960774, 0.00039227912, 0.99956405, 0.000435926, 0.9995131, 0.00048693825, 0.9994923, 0.000507706, 0.99949604, 0.0005039366, 0.9995058, 0.0004941721, 0.9995237, 0.00047630456, 0.99954224, 0.0004577637, 0.9995362, 0.0004637817, 0.99951404, 0.0004859364, 0.99950105, 0.0004989561, 0.9994963, 0.0005037254, 0.99950063, 0.0004993585, 0.9995281, 0.00047186133, 0.9995743, 0.00042566785, 0.99960643, 0.0003935532, 0.9996093, 0.00039072096, 0.999129, 0.0008710176, 0.99915534, 0.0008446354, 0.9991765, 0.0008234786, 0.99916947, 0.0008305059, 0.9991477, 0.0008522774, 0.9991376, 0.00086242886, 0.99915236, 0.00084766495, 0.9991407, 0.0008593391, 0.99904585, 0.00095417857, 0.99892277, 0.0010772167, 0.9988661, 0.0011339458, 0.9988719, 0.0011280895, 0.998896, 0.0011039841, 0.9989412, 0.0010588203, 0.9989852, 0.0010148175, 0.99896866, 0.0010313668, 0.9989155, 0.0010844914, 0.9988835, 0.001116514, 0.99887496, 0.0011250183, 0.99890107, 0.0010989481, 0.9989789, 0.0010210642, 0.9990772, 0.0009227945, 0.99913514, 0.000864842, 0.9991336, 0.0008664068, 0.99794, 0.0020600192, 0.9979966, 0.0020033538, 0.9980436, 0.0019563846, 0.9980174, 0.001982639, 0.997961, 0.0020390265, 0.99794877, 0.002051209, 0.99799836, 0.0020016555, 0.99799156, 0.0020084546, 0.9977906, 0.002209425, 0.99748623, 0.0025137495, 0.9973121, 0.002687894, 0.99730825, 0.0026917362, 0.9973735, 0.0026264568, 0.99749035, 0.0025096405, 0.9975946, 0.0024054043, 0.9975481, 0.0024518983, 0.9974142, 0.0025858383, 0.9973351, 0.0026649276, 0.99732536, 0.0026746525, 0.99741876, 0.0025812422, 0.9976374, 0.0023626375, 0.9978659, 0.0021340996, 0.9979716, 0.0020284287, 0.9979545, 0.002045523, 0.9949063, 0.005093691, 0.9950492, 0.0049508335, 0.99518484, 0.004815143, 0.9951161, 0.0048838565, 0.99494505, 0.005054978, 0.99490005, 0.0050999476, 0.9950073, 0.004992751, 0.994989, 0.005011048, 0.9945585, 0.0054415143, 0.99385226, 0.0061477595, 0.99336123, 0.0066387854, 0.9932788, 0.0067211934, 0.99343586, 0.0065641277, 0.99375, 0.0062500425, 0.9940212, 0.005978836, 0.99390703, 0.006092948, 0.9935586, 0.0064414325, 0.9933341, 0.0066658896, 0.9933098, 0.00669021, 0.9936014, 0.0063986476, 0.994227, 0.00577303, 0.9948119, 0.0051881005, 0.99502265, 0.004977351, 0.99494684, 0.005053169, 0.98728263, 0.012717368, 0.98755157, 0.012448413, 0.9879055, 0.01209451, 0.98785156, 0.012148415, 0.9874554, 0.012544547, 0.9872639, 0.012736104, 0.9873487, 0.01265131, 0.98704386, 0.012956168, 0.9859355, 0.014064481, 0.98443294, 0.015567039, 0.98334545, 0.01665455, 0.9830054, 0.016994573, 0.9832022, 0.016797809, 0.9838719, 0.01612815, 0.98460037, 0.015399609, 0.9844978, 0.015502234, 0.98374915, 0.016250823, 0.9831374, 0.016862595, 0.98288035, 0.017119633, 0.9834571, 0.016542898, 0.9851685, 0.014831496, 0.9869464, 0.013053605, 0.9876204, 0.012379594, 0.98743045, 0.012569528, 0.9696091, 0.030390892, 0.97007823, 0.029921787, 0.97067803, 0.029321963, 0.9706478, 0.02935218, 0.9699589, 0.030041112, 0.96950066, 0.030499328, 0.9694754, 0.030524615, 0.9682795, 0.031720534, 0.9651912, 0.034808822, 0.96190256, 0.03809745, 0.9600542, 0.039945755, 0.9594763, 0.040523723, 0.9594231, 0.04057685, 0.960149, 0.03985101, 0.9615776, 0.038422406, 0.96196985, 0.03803015, 0.9609771, 0.039022915, 0.9598514, 0.04014859, 0.9588539, 0.041146085, 0.95907515, 0.040924836, 0.9623573, 0.037642725, 0.9671771, 0.03282289, 0.969849, 0.030151037, 0.96988857, 0.030111454, 0.932973, 0.067026965, 0.934072, 0.06592798, 0.93534404, 0.064655945, 0.9351994, 0.064800635, 0.9339798, 0.066020206, 0.933063, 0.06693701, 0.9329467, 0.06705329, 0.93090785, 0.06909218, 0.9247384, 0.07526161, 0.91784173, 0.08215826, 0.9147004, 0.08529964, 0.91452295, 0.085477054, 0.9143632, 0.08563678, 0.91423094, 0.085769065, 0.9155537, 0.0844463, 0.91683316, 0.083166845, 0.91649824, 0.08350177, 0.9155228, 0.08447718, 0.9138202, 0.08617978, 0.9123636, 0.087636426, 0.91570777, 0.08429224, 0.92450315, 0.07549686, 0.9318093, 0.06819069, 0.9333568, 0.06664319, 0.8687464, 0.1312536, 0.8695978, 0.1304022, 0.8724475, 0.1275525, 0.873167, 0.12683302, 0.87175816, 0.1282418, 0.8705791, 0.12942089, 0.8702803, 0.12971964, 0.8679553, 0.13204469, 0.8601044, 0.13989562, 0.8495322, 0.15046781, 0.84393847, 0.1560615, 0.8443365, 0.1556635, 0.84512883, 0.15487118, 0.84422356, 0.15577647, 0.8440675, 0.15593246, 0.84509706, 0.15490296, 0.8457842, 0.15421578, 0.846157, 0.15384299, 0.84512657, 0.15487342, 0.84213996, 0.15786001, 0.84277886, 0.15722114, 0.8525733, 0.1474267, 0.8652089, 0.13479108, 0.86999017, 0.13000986, 0.77894115, 0.22105882, 0.7761308, 0.22386917, 0.7784147, 0.22158526, 0.7809628, 0.21903718, 0.7810877, 0.21891232, 0.78127223, 0.21872777, 0.78204507, 0.21795493, 0.77985567, 0.2201443, 0.7723337, 0.2276663, 0.7614026, 0.2385974, 0.7539118, 0.24608818, 0.7536724, 0.24632758, 0.75565046, 0.24434954, 0.7553894, 0.24461064, 0.75444436, 0.24555561, 0.7541504, 0.2458496, 0.7542693, 0.24573068, 0.75550526, 0.24449477, 0.75627464, 0.24372536, 0.75400066, 0.24599932, 0.751942, 0.24805802, 0.7580291, 0.24197091, 0.77197075, 0.22802925, 0.78087765, 0.21912237, 0.67834336, 0.32165664, 0.67227745, 0.32772258, 0.67012423, 0.3298758, 0.67197806, 0.3280219, 0.67367214, 0.32632786, 0.67585707, 0.32414296, 0.6792502, 0.32074982, 0.67918605, 0.32081395, 0.6731963, 0.3268037, 0.6646182, 0.33538178, 0.65796363, 0.34203637, 0.6565178, 0.3434822, 0.6582425, 0.34175748, 0.6588991, 0.34110087, 0.6586802, 0.3413198, 0.6584276, 0.3415724, 0.6574489, 0.3425511, 0.65752065, 0.34247935, 0.6588783, 0.3411217, 0.6585201, 0.3414799, 0.65648335, 0.34351662, 0.6580447, 0.34195527, 0.6674085, 0.33259147, 0.67784435, 0.32215565, 0.5881829, 0.41181707, 0.58429474, 0.4157053, 0.57970035, 0.42029965, 0.5788094, 0.42119062, 0.5798206, 0.42017943, 0.58186233, 0.41813767, 0.58571917, 0.4142808, 0.58822304, 0.411777, 0.58551484, 0.4144852, 0.5800838, 0.41991624, 0.5758826, 0.42411736, 0.574337, 0.42566302, 0.57493544, 0.4250646, 0.5755457, 0.42445424, 0.57576764, 0.4242324, 0.576291, 0.423709, 0.5758322, 0.4241678, 0.57486564, 0.42513436, 0.5751884, 0.4248116, 0.57562125, 0.42437875, 0.57491, 0.42509004, 0.5746729, 0.4253271, 0.57809657, 0.42190343, 0.5849465, 0.41505346, 0.52960753, 0.47039247, 0.5291107, 0.47088927, 0.5265207, 0.47347927, 0.5249138, 0.47508618, 0.52478206, 0.47521794, 0.525455, 0.474545, 0.5272525, 0.47274753, 0.52942085, 0.47057918, 0.5294043, 0.4705957, 0.52719784, 0.47280213, 0.5252251, 0.47477493, 0.52440274, 0.4755973, 0.5244124, 0.4755876, 0.52461845, 0.47538155, 0.52469563, 0.4753044, 0.5250993, 0.47490075, 0.52533877, 0.4746612, 0.5248158, 0.4751842, 0.5244874, 0.4755126, 0.5246559, 0.47534415, 0.5246128, 0.47538722, 0.52441424, 0.47558576, 0.52496296, 0.47503704, 0.5271981, 0.47280195, 0.505717, 0.49428302, 0.50598824, 0.49401173, 0.5054766, 0.49452344, 0.5048413, 0.49515867, 0.5045965, 0.49540353, 0.50463873, 0.49536127, 0.50497276, 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+        local expectedIndices = #(0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0)
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Cylinder001")
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+        local mesh = pyUsdGeom.Mesh(meshPrim)
+
+        local primvarApi = pyUsdGeom.PrimvarsAPI(mesh)
+        local jointsIndicesPrimVar = (primvarApi.GetPrimvar("primvars:skel:jointIndices")).Get()
+        local jointsWeightsPrimVar = (primvarApi.GetPrimvar("primvars:skel:jointWeights")).Get()
+        local meshBindingApi = pyUsdSkel.BindingAPI.Get stage meshPrimPath
+
+        assert_equal jointsIndicesPrimVar.count jointsWeightsPrimVar.count message: "Joint weights and indices array must have the same amount of elements"
+
+        local areEqual = true
+        for i = 1 to jointsIndicesPrimVar.count do
+        (
+            assert_equal jointsIndicesPrimVar[i] expectedIndices[i] message:"Export generated wrong joints indices for the skel binding"
+            areEqual = (compareFloats jointsWeightsPrimVar[i] expectedWeights[i])
+            assert_true areEqual message:"Export generated wrong joints weights for the skel binding"
+            if not areEqual then exit -- This is a work around to prevent error spam when there's an error
+        )
+
+        assert_true areEqual message: "Exited checking for joints Weight early with an error!"
+    ),
+
+    function export_skeleton_deleted_modifier_test = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 1
+
+        -- create a simple cylinder character
+        local char = Cylinder radius:6 height:36 heightsegs:30 pos:[0,0,0] isSelected:on
+        convertToPoly char
+
+        skinBonesToCharacter newBones char
+
+        -- after a modifier was delete, it stays in memory and it would still create (in the Skeleton writer)
+        -- the skeleton prim to export bones that were attached to it
+        undo on
+        (
+            deleteModifier char 1
+        )
+
+        local exportPath = output_prefix + "export_skeleton_deleted_modifier_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        assert_false (pyUsd.Prim.IsValid skelPrim) Message: "Skeleton prim shouldn't have been created; modifier was deleted!"
+
+        -- check if the skeleton can still be created after the undo
+        max undo
+        local exportPathUndo = output_prefix + "export_skeleton_deleted_modifier_undo_test.usda"
+        USDExporter.ExportFile exportPathUndo exportOptions:exportOptions
+        local undoStage = pyUsd.Stage.Open(exportPathUndo)
+        local undoSkelPrim = undoStage.GetPrimAtPath(skelRootPath + "/Bones")
+        assert_true (pyUsd.Prim.IsValid undoSkelPrim) Message: "Skeleton prim should have been created after undo!"
+    ),
+
+    function export_skeleton_can_export_conditions = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 1
+
+        animate on (
+            in coordsys world (
+                at time 30 newBones[1].rotation = (quat 0.275154 0 0 0.9614)
+            )
+        )
+
+        -- create a simple cylinder character
+        local char = Cylinder radius:6 height:36 heightsegs:30 pos:[0,0,0] isSelected:on
+        convertToPoly char
+
+        skinBonesToCharacter newBones char
+
+        exportOptions.Meshes = false
+        local exportPath = output_prefix + "export_skeleton_can_export_conditions_without_meshes.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        assert_true (pyUsd.Prim.IsValid skelPrim) Message: "Skeleton prim should have been created even though Meshes is disabled"
+        assert_true (pyUsd.Prim.IsValid animPrim) Message: "SkelAnimation prim should have been created even though Meshes is disabled"
+
+        local meshPrimPath = (skelRootPath + "/Cylinder001")
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+
+        assert_false (pyUsd.Prim.IsValid meshPrim) Message: "Mesh prim shouldn't have been created with Meshes disabled"
+
+        exportOptions.Meshes = true
+        exportPath = output_prefix + "export_skeleton_can_export_conditions.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        meshPrim = stage.GetPrimAtPath meshPrimPath
+
+        assert_true (pyUsd.Prim.IsValid meshPrim) Message: "Mesh prim should have been created with Meshes enabled"
+    ),
+
+    function export_skeleton_without_skin_test = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 3
+
+        b = createBone (matrix3 [0.707107,0,-0.707107] [0,1,0] [0.707107,0,0.707107] [24,0,50]) 
+        b.parent = newBones[newBones.count-1]
+        append newBones b
+
+        b = createBone(matrix3 [0.707107,0,0.707107] [0,1,0] [-0.707107,0,0.707107] [-24,0,50])
+        b.parent = newBones[newBones.count - 2]
+        append newBones b
+        
+        animate on (
+            in coordsys world (
+                at time 30 newBones[2].rotation = (quat 0.275154 0 0 0.9614)
+                at time 30 newBones[3].rotation = (quat 0.562967 0 0 0.826479)
+                at time 30 newBones[4].rotation = (quat 0.229887 0.528306 0.151202 0.803233)
+                at time 30 newBones[5].rotation = (quat 0.223103 -0.562692 -0.161043 0.779531)
+            )
+        )
+
+        char = createCharMesh()
+
+        -- the bones aren't being added to the skin modifier, thus shouldn't be exported
+        sk = skin()
+        addModifier char sk
+
+        -- exporting bones without adding them to the skin modifier
+        local exportPath = output_prefix + "export_skeleton_without_skin_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Cylinder001")
+        local skelRootPrim = pyUsdSkel.Root(stage.GetPrimAtPath(skelRootPath))
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+        local skelPrim = stage.GetPrimAtPath(skelRootPath + "/Bones")
+        local animPrim = stage.GetPrimAtPath(skelRootPath + "/Bones/Animations")
+
+        assert_false (pyUsd.Prim.IsValid skelPrim) Message: "Skeleton prim was created without bones being added to any skin modifier"
+        assert_false (pyUsd.Prim.IsValid animPrim) Message: "SkelAnimation prim was created without bones being added to any skin modifier"
+        
+        local meshBindingApi = pyUsdSkel.BindingAPI.Get stage meshPrimPath
+        local meshSkelRel = meshBindingApi.GetSkeletonRel()
+        local meshSkelTargets = meshSkelRel.GetTargets()
+        assert_equal 0 meshSkelTargets.count Message: "There shouldn't exist a SkelBinding without bones being exported"
+    ),
+
+    -- Test that instanced bones are not instanced in the output USD. 
+    -- There is a limitation of PrimWriters, where only the first instance hits the write() 
+    -- method, so we can't setup the UsdSkel prims properly, causing issues. Whenever this 
+    -- is adressed, this test should start failing and can be removed.
+    function bone_instancing_ignored_test = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = #()
+        local firstBone = createBone (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        firstBone.Name = "Bone1"
+        local instancedBone = create_clone firstBone #instance "Bone2"
+        local exportPath = output_prefix + "bone_instancing_ignored_test.usda"
+
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local bonePrim1 = stage.GetPrimAtPath("/root/Bone1")
+        local bonePrim2 = stage.GetPrimAtPath("/root/Bone2")
+
+        assert_false (bonePrim1.IsInstance())
+        assert_false (bonePrim2.IsInstance())
+    ),
+
+    function export_skin_with_turbosmooth = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 1
+
+        local char = Box()
+        convertToPoly char
+
+        skinBonesToCharacter newBones char
+
+        local ts = TurboSmooth iterations:1 renderIterations:2 useRenderIterations:on
+        addModifier char ts
+
+        local exportPath = output_prefix + "export_skin_with_turbosmooth.usda"
+        exportOptions.BakeObjectOffsetTransform = true
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- convert to editable poly to check number of vertices
+        convertToPoly char
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Box001")
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+
+        local polyNumVerts = polyop.getNumVerts char
+        local exportedMeshNumVerts = ((meshPrim.GetAttribute("points")).Get()).count
+
+        assert_equal exportedMeshNumVerts 8 message: "TurboSmooth should have been disabled for the export!"
+        assert_equal polyNumVerts 26 message:"TurboSmooth should still be enabled after the export"
+    ),
+
+    function export_skin_with_wsm = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        newBones = createBonesArray 1
+
+        local char = Box()
+        convertToPoly char
+
+        skinBonesToCharacter newBones char
+
+        local sw = SpaceNoise()        
+        sw.position = [20,30,40] 
+        sw.rotation = (quat  0 0.707 0 0.707)
+        sw.strength = [1000,0,0]
+        bindSpaceWarp char sw
+
+        local exportPath = output_prefix + "export_skin_with_wsm.usda"
+        exportOptions.BakeObjectOffsetTransform = true
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- convert to editable poly to check number of vertices after export
+        convertToPoly char
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Box001")
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+
+        local polyNumVerts = polyop.getNumVerts char
+        local exportedMeshNumVerts = (meshPrim.GetAttribute("points")).Get()
+        local expectedExportedNumVerts = #(#(-12.5, -12.5, 0), #(12.5, -12.5, 0), #(-12.5, 12.5, 0), #(12.5, 12.5, 0), #(-12.5, -12.5, 25), #(12.5, -12.5, 25), #(-12.5, 12.5, 25), #(12.5, 12.5, 25))
+        local expectedVertsWithWSM = #(#(-12.5,-12.5,-37.5044), #(12.5,-12.5,-4.06682), #(-12.5,12.5,-61.7349), #(12.5,12.5,-27.9767), #(-12.5,-12.5,-12.5044), #(12.5,-12.5,20.9332), #(-12.5,12.5,-36.7349), #(12.5,12.5,-2.97669))
+
+        -- SpaceNoise shouldn't affect points position after export
+        assert_true (compare2dMatrix exportedMeshNumVerts exportedMeshNumVerts 8 3) message: "SpaceNoise should have been disabled for the export!"
+
+        local theMesh = snapshotAsMesh char
+        for i = 1 to polyNumVerts do (
+            for x = 1 to 3 do (
+                assert_float_equal (expectedVertsWithWSM[i])[x] (getVert theMesh i)[x] tolerance:1e-4 message: "The mesh should have maintained the SpaceNoise vertices trasnform after export!"
+            )
+        )
+    ),
+
+    function export_skin_with_offset_object = 
+    (
+        resetMaxFileAndSetupUnits()
+
+        local char = Box()
+        -- applying transform to the object (Box) only, not the node
+        char.objectOffsetPos = [0,0,10]
+        char.objectOffsetRot = (quat 0 0.5 0 1)
+
+        newBones = createBonesArray 1
+        skinBonesToCharacter newBones char
+
+        local exportPath = output_prefix + "export_skin_with_offset_object.usda"
+        exportOptions.BakeObjectOffsetTransform = false
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local skelRootPath = "/root"
+        local meshPrimPath = (skelRootPath + "/Box001/Box001_Shape")
+        local meshPrim = stage.GetPrimAtPath meshPrimPath
+        local geomBindTransform = (meshPrim.GetAttribute("primvars:skel:geomBindTransform")).Get()
+        local expectedBindTransform = #( #(0.6, 0, 0.8, 0), #(0, 1, 0, 0), #(-0.8, 0, 0.6, 0), #(0, 0, 10, 1) )
+
+        -- When BakeOffset transform is off, the mesh and the xform prim should be split
+        -- The bindTransform should account for this difference by using the object transform
+        assert_true (compare2dMatrix geomBindTransform expectedBindTransform 4 4) message: "BindTransform should account for the mesh object offset"
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+        maxops.autoKeyDefaultKeyOn = wasAutoKeyOn
+    ),
+
+    Tests = #(
+        export_skin_animation_test,
+        export_skin_invalid_root_test,
+        export_multiple_bind_transform_test,
+        export_skeleton_can_export_conditions,
+        export_skeleton_without_skin_test,
+        export_skeleton_bone_weights_test,
+        bone_instancing_ignored_test,
+        export_skin_with_turbosmooth,
+        export_skin_with_wsm,
+        export_skin_with_offset_object,
+        export_skeleton_deleted_modifier_test
+    )
+)
+
+runUsdTestFixture export_skin_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_texture_map_channels.ms b/src/Tests/Integration/export_texture_map_channels.ms
new file mode 100644
index 0000000..c693734
--- /dev/null
+++ b/src/Tests/Integration/export_texture_map_channels.ms
@@ -0,0 +1,312 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdShade = python.import("pxr.UsdShade")
+pyGf = python.import("pxr.Gf")
+pySdf = python.import("pxr.Sdf")
+pyUsdMaterialReader = python.import("usd_material_reader")
+pyShaderReader = python.import("shaderReader")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_TEXTURE_MAP_CHANNELS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_texture_map_channels_test
+(
+    private
+    _oslbitmapfile = "",
+    _uberbitmapfile = "",
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        maxver = maxversion()
+        if maxver[1] >= 26000 then (  -- 3ds Max 2024 and up
+            _oslbitmapfile = "OSLBitmap2.osl"
+            _uberbitmapfile = "UberBitmap2.osl"
+        ) else (
+            _oslbitmapfile = "OSLBitmap.osl"
+            _uberbitmapfile = "UberBitmap.osl"
+        )
+        pyShaderReader._material_import_options["texture_target_id"] = _uberbitmapfile
+    ),
+    function get_primvar_st_input stage bitmap_path = (
+        local usd_bitmap = pyUsdShade.Shader.Get stage bitmap_path
+        local st_attr_input = usd_bitmap.GetInput("st")
+        local primvar_reader_outputs = st_attr_input.GetValueProducingAttributes()
+        local st_src_prim = primvar_reader_outputs[1].GetPrim()
+
+        local usd_primvar_reader = pyUsdShade.Shader(st_src_prim)
+        local varname_input = usd_primvar_reader.GetInput("varname")
+        local varname_value_attributes = varname_input.GetValueProducingAttributes()
+        local primvar_name = varname_value_attributes[1].Get()
+        return primvar_name
+    ),
+    function build_test_box map_channel pos:[0,0,0] name:"testBox"= (
+        local testBox = Box name:name pos:pos width:10 length:10 height:10
+        local clear_uvw = UVW_Mapping_Clear()
+        addModifier testBox clear_uvw
+
+        local uvw_modifier = Uvwmap()
+        uvw_modifier.maptype = 4 -- box mapping
+        uvw_modifier.mapChannel = map_channel
+        addModifier testBox uvw_modifier
+
+        local uvw_unwrap = UVWUnwrap()
+        addModifier testBox uvw_unwrap
+
+        max modify mode
+        uvw_unwrap.unwrap.setMapChannel map_channel
+        uvw_unwrap.flattenMapNoParams()
+        convertTo testBox Editable_Poly
+        return testBox
+    ),
+    function test_export_texture_map_channels = (
+        local export_path = (output_prefix + "test_export_texture_map_channels.usda")
+        local log_path = (output_prefix + "test_export_texture_map_channels.log")
+        local map_channel = 3 -- non default value
+        local map_primvar_name = "testMapChannel"
+        local test_texture_filename = "uvwunwrap\\uv_checker.png"
+
+        -- build the boxes
+        local testBox = build_test_box map_channel name:"testBox"
+        local testBox_osl = build_test_box map_channel name:"testBox_OSL" pos:[0, 20, 0]
+        local testBox_osl_2 = build_test_box map_channel name:"testBox_OSL_2" pos:[0, 40, 0]
+
+        -- materials
+        testBox.material = PhysicalMaterial()
+        testBox_osl.material = PhysicalMaterial()
+        testBox_osl_2.material = PhysicalMaterial()
+
+        -- standard bitmap
+        local bitmap_texture = Bitmaptexture fileName:test_texture_filename
+        bitmap_texture.coordinates.mapChannel = map_channel
+        testBox.material.base_color_map = bitmap_texture
+
+        -- uberbitmap.osl
+        osl_texture = OSLMap()
+        osl_texture.name = "UberBitmap"
+        max_root = symbolicPaths.getPathValue("$max")
+        osl_texture.OSLPath = (max_root + "/OSL/" + _uberbitmapfile)
+        osl_texture.OSLAutoUpdate = True
+        osl_texture.filename = test_texture_filename
+        osl_texture.UVSet = map_channel
+        multi_channel_map = MultiOutputChannelTexmapToTexmap()
+        multi_channel_map.sourceMap = osl_texture
+        out_channel_index = 1 -- rgb
+        multi_channel_map.outputChannelIndex = out_channel_index
+        multi_channel_map.name = osl_texture.name + "rgb"
+        testBox_osl.material.base_color_map = multi_channel_map
+
+        -- oslbitmap.osl
+        osl_texture_2 = OSLMap()
+        osl_texture_2.name = "OslBitmap"
+        max_root = symbolicPaths.getPathValue("$max")
+        osl_texture_2.OSLPath = (max_root + "/OSL/" + _oslbitmapfile)
+        osl_texture_2.OSLAutoUpdate = True
+        osl_texture_2.filename = test_texture_filename
+
+        pos_map = OSLMap()
+        pos_osl_path = (max_root + "/OSL/GetUVW.osl")
+        pos_map.OSLPath = pos_osl_path
+        pos_map.OSLAutoUpdate = True
+        osl_texture_2.Pos_map = pos_map
+        pos_map.UVSet = map_channel
+
+        multi_channel_map = MultiOutputChannelTexmapToTexmap()
+        multi_channel_map.sourceMap = osl_texture_2
+        out_channel_index = 1 -- rgb
+        multi_channel_map.outputChannelIndex = out_channel_index
+        multi_channel_map.name = osl_texture.name + "rgb"
+        testBox_osl_2.material.base_color_map = multi_channel_map
+
+
+        -- export
+        local export_options = USDExporter.CreateOptions()
+        export_options.SetChannelPrimvarMapping map_channel map_primvar_name type:#texCoord2fArray autoExpandType:False
+        export_options.FileFormat = #ascii
+        export_options.RootPrimPath = "/"
+        export_options.LogPath = log_path
+        export_options.LogLevel = #warn
+        res = USDExporter.exportFile export_path exportOptions:export_options contentSource:#nodelist nodeList:#(testBox, testBox_osl, testBox_osl_2)
+        assert_true res
+        -- test output
+        local stage = pyUsd.Stage.Open(export_path)
+        local bitmap_path = pySdf.Path("/mtl/Bitmaptexture/Bitmaptexture")
+        local OSLbitmap_path = pySdf.Path("/mtl/OslBitmap/OslBitmap")
+        local uberbitmap_path = pySdf.Path("/mtl/UberBitmap/UberBitmap")
+
+        local usd_primvar_name = get_primvar_st_input stage bitmap_path
+        local usd_primvar_name_osl = get_primvar_st_input stage OSLbitmap_path
+        local usd_primvar_name_uber = get_primvar_st_input stage uberbitmap_path
+
+        local export_options_primvar_name = export_options.GetChannelPrimvarName(map_channel)
+        assert_equal map_primvar_name export_options_primvar_name
+        assert_equal map_primvar_name usd_primvar_name
+        assert_equal map_primvar_name usd_primvar_name_osl
+        assert_equal map_primvar_name usd_primvar_name_uber
+
+        local importOptions = USDImporter.CreateOptions()
+        importOptions.SetPrimvarChannelMapping map_primvar_name map_channel
+
+        -- test import uberbitmap
+        resetmaxfile #noprompt
+        -- Use caps to make sure the osl name is not case sensitive.
+        pyShaderReader._material_import_options["texture_target_id"] = _uberbitmapfile
+
+        USDImporter.ImportFile export_path importOptions:importOptions
+        local imp_cube = $testBox
+        local imp_material = imp_cube.material
+        local imp_texture = imp_material.diffuseColor_map
+        assert_equal map_channel imp_texture.sourceMap.UVSet
+
+        -- test import with standard bitmaps
+        resetmaxfile #noprompt
+        pyShaderReader._material_import_options["texture_target_id"] = "Bitmaptexture"
+
+        USDImporter.ImportFile export_path importOptions:importOptions
+        local imp_cube = $testBox
+        local imp_material = imp_cube.material
+        local imp_texture = imp_material.diffuseColor_map
+        assert_equal map_channel imp_texture.coordinates.mapChannel
+
+        -- test import with oslbitmap
+        resetmaxfile #noprompt
+        pyShaderReader._material_import_options["texture_target_id"] = _oslbitmapfile
+
+        USDImporter.ImportFile export_path importOptions:importOptions
+        local imp_cube = $testBox
+        local imp_material = imp_cube.material
+        local imp_texture = imp_material.diffuseColor_map
+        assert_equal map_channel imp_texture.sourceMap.pos_map.UVSet
+    ),
+    function test_unmapped_primvar_export = (
+        -- Log an error and skip export of texture
+        local export_path = (output_prefix + "test_unmapped_primvar_export.usda")
+        local log_path = (output_prefix + "test_unmapped_primvar_export.log")
+        local map_channel = 3 -- non default value
+        local map_primvar_name = undefined
+        local test_texture_filename = "uvwunwrap\\uv_checker.png"
+
+        -- build the box
+        local testBox = build_test_box map_channel name:"testBox"
+
+        -- materials
+        testBox.material = PhysicalMaterial()
+
+        -- standard bitmap
+        local bitmap_texture = Bitmaptexture fileName:test_texture_filename
+        bitmap_texture.coordinates.mapChannel = map_channel
+        testBox.material.base_color_map = bitmap_texture
+
+        -- export
+        local export_options = USDExporter.CreateOptions()
+        export_options.SetChannelPrimvarMapping map_channel map_primvar_name type:#texCoord2fArray autoExpandType:False
+        export_options.FileFormat = #ascii
+        export_options.RootPrimPath = "/"
+        export_options.LogPath = log_path
+        export_options.LogLevel = #warn
+        res = USDExporter.exportFile export_path exportOptions:export_options contentSource:#nodelist nodeList:#(testBox, testBox_osl)
+        assert_true res
+
+        -- test the log output
+        local fileStream = openFile log_path
+        assert_defined fileStream message:("Could not open file '" + log_path + "'!")
+        local infoMessage = "using a channel not mapped to a primvar"
+        assert_defined (skipToString fileStream infoMessage) message:("Could not read line '" + infoMessage + "'!")
+        close fileStream
+
+        -- test output
+        local stage = pyUsd.Stage.Open(export_path)
+        local bitmap_path = pySdf.Path("/Materials/Bitmaptexture")
+        local usd_bitmap = stage.GetPrimAtPath bitmap_path
+        assert_false (usd_bitmap.IsValid())
+    ),
+    function test_unmapped_primvar_import = (
+        -- Should log an error, fallback to channel 1
+        local export_path = (output_prefix + "test_unmapped_primvar_import.usda")
+        local log_path = (output_prefix + "test_unmapped_primvar_import.log")
+        local map_channel = 3 -- non default value
+        local map_channel_fallback = 1
+        local map_primvar_name = "fuzz"
+        local test_texture_filename = "uvwunwrap\\uv_checker.png"
+
+        -- build the box
+        local testBox = build_test_box map_channel name:"testBox"
+
+        -- materials
+        testBox.material = PhysicalMaterial()
+
+        -- standard bitmap
+        local bitmap_texture = Bitmaptexture fileName:test_texture_filename
+        bitmap_texture.coordinates.mapChannel = map_channel
+        testBox.material.base_color_map = bitmap_texture
+
+        -- export
+        local export_options = USDExporter.CreateOptions()
+        export_options.SetChannelPrimvarMapping map_channel map_primvar_name type:#texCoord2fArray autoExpandType:False
+        export_options.FileFormat = #ascii
+        export_options.RootPrimPath = "/"
+        res = USDExporter.exportFile export_path exportOptions:export_options contentSource:#nodelist nodeList:#(testBox, testBox_osl)
+        assert_true res
+
+        -- test output
+        local stage = pyUsd.Stage.Open(export_path)
+        local bitmap_path = pySdf.Path("/mtl/Bitmaptexture")
+        local usd_bitmap = stage.GetPrimAtPath bitmap_path
+        assert_true (usd_bitmap.IsValid())
+
+        -- test import
+        resetmaxfile #noprompt
+        local importOptions = USDImporter.CreateOptions()
+        importOptions.ClearMappedPrimvars() -- now no primvars are mapped
+        importOptions.ImportUnmappedPrimvars = False
+        importOptions.LogPath = log_path
+        importOptions.LogLevel = #warn
+
+        USDImporter.ImportFile export_path importOptions:importOptions
+        local imp_cube = $testBox
+        local imp_material = imp_cube.material
+        local imp_texture = imp_material.diffuseColor_map
+        assert_equal map_channel_fallback imp_texture.sourceMap.UVSet
+
+        -- test the log output
+        local fileStream = openFile log_path
+        assert_defined fileStream message:("Could not open file '" + log_path + "'!")
+        local infoMessage = "Channel is not mapped for primvar name:"
+        assert_defined (skipToString fileStream infoMessage) message:("Could not read line '" + infoMessage + "'!")
+        close fileStream
+    ),
+    function teardown = (
+        pyShaderReader._material_import_options["texture_target_id"] = _uberbitmapfile
+    ),
+
+    Tests = #(
+        test_export_texture_map_channels,
+        test_unmapped_primvar_import,
+        test_unmapped_primvar_export
+    )
+)
+
+runUsdTestFixture export_texture_map_channels_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_texture_test.ms b/src/Tests/Integration/export_texture_test.ms
new file mode 100644
index 0000000..6b7c81c
--- /dev/null
+++ b/src/Tests/Integration/export_texture_test.ms
@@ -0,0 +1,72 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_TEXTURE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_texture_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_usd_texture_export = 
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import export_texture_test"
+        python.Execute "reload(export_texture_test)"
+        python.Execute "import usd_material_reader"
+        python.Execute "reload(usd_material_reader)"
+        python.Execute "import usd_material_writer"
+        python.Execute "reload(usd_material_writer)"	
+		
+        mat_exp_test = python.import("export_texture_test")
+        results = mat_exp_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_usd_texture_export
+    )
+)
+
+runUsdTestFixture export_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_texture_test.py b/src/Tests/Integration/export_texture_test.py
new file mode 100644
index 0000000..295a4a3
--- /dev/null
+++ b/src/Tests/Integration/export_texture_test.py
@@ -0,0 +1,551 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import usd_material_writer
+import usd_material_reader
+import pymxs
+from pymxs import runtime as rt
+import sys
+import os
+import shutil
+
+from pxr import Usd, UsdShade, Sdf, Gf
+import usd_test_helpers
+from importlib import reload
+reload(usd_test_helpers)
+reload(usd_material_reader)
+reload(usd_material_writer)
+
+mxs = pymxs.runtime
+TEST_DIR = os.path.dirname(__file__)
+TEST_DATA_DIR = os.path.join(TEST_DIR, "data")
+NOPROMPT = mxs.Name("noprompt")
+TEMP_DIR = mxs.getdir(mxs.name("temp"))
+UV_CHECKER_PATH = os.path.join(TEST_DATA_DIR, "uv_checker.png")
+
+_material_import_options = {
+    "texture_target_id": usd_material_reader._uberbitmapfile,
+    "material_target_id": "MaxUsdPreviewSurface"
+}
+
+channel_index_map = {
+    "rgb": 1,
+    "r": 2,
+    "g": 3,
+    "b": 4,
+    "a": 5
+}
+
+def create_osl_multi_channel(osl_texture, channel):
+    multi_channel_map = mxs.MultiOutputChannelTexmapToTexmap()
+    multi_channel_map.sourceMap = osl_texture
+    out_channel_index = channel_index_map[channel] # rgb
+    multi_channel_map.outputChannelIndex = out_channel_index
+    multi_channel_map.name = "{0}:{1}".format(osl_texture.name, channel)
+    return multi_channel_map
+
+def create_test_osl_bitmap(osl_name, test_texture_filename, name):
+    osl_texture = mxs.OSLMap()
+    osl_texture.name = name
+    max_root = mxs.symbolicPaths.getPathValue("$max")
+    osl_texture.OSLPath = (max_root + "/OSL/" + osl_name)
+    osl_texture.OSLAutoUpdate = True
+    osl_texture.filename = test_texture_filename
+    return osl_texture
+
+def create_test_bitmap(test_texture_filename, name):
+    bitmap_texture = mxs.Bitmaptexture(fileName=test_texture_filename)
+    bitmap_texture.name = name
+    return bitmap_texture
+
+class TestOutputUsdTexture(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("EXPORT_TEXTURE_TEST_")
+        usd_test_helpers.load_usd_plugins()
+        mxs.resetMaxFile(NOPROMPT)
+        self.parent_path = Sdf.Path("/tests")
+        # Turn off relative paths for testing. The feature is tested explictely.
+        usd_material_writer._material_export_options["relative_texture_paths"] = False
+        self.export_options = dict(usd_material_writer._material_export_options)
+        maxver = rt.maxversion()
+        if maxver[0] >= 26000:  # 3ds Max 2024 and up
+            self.OslBitmapFile = "OSLBitmap2.osl"
+            self.UberBitmapFile = "UberBitmap2.osl"
+        else:
+            self.OslBitmapFile = "OSLBitmap.osl"
+            self.UberBitmapFile = "UberBitmap.osl"
+
+    def tearDown(self):
+        usd_material_writer._material_export_options["relative_texture_paths"] = True
+
+    def test_bitmap(self):
+        # type: () -> None
+        """Test roundtrip of max bitmap texture reader"""
+        import_options = dict(_material_import_options)
+        import_options['texture_target_id'] = "Bitmaptexture"
+        stage = Usd.Stage.CreateInMemory()
+        bitmap = create_test_bitmap(UV_CHECKER_PATH, "test_Bitmap")
+        self.assertEqual(mxs.classOf(bitmap), mxs.Bitmaptexture)
+        texture_sampler, resolved_texture, _, _ = usd_material_writer.output_usd_texture(bitmap, stage, self.parent_path, self.export_options, {}, False)
+        self.assertIsInstance(texture_sampler, UsdShade.NodeGraph)
+        self.assertIsNotNone(resolved_texture)
+
+        texture_sampler_path = "/tests/test_Bitmap/test_Bitmap"
+        usd_test_helpers.test_texture_sampler_ouput(self, stage, texture_sampler_path, UV_CHECKER_PATH)
+
+        mxs.resetMaxFile(NOPROMPT)
+        texture_sampler_shader = UsdShade.Shader.Get(stage, texture_sampler_path)
+        max_bitmap = usd_material_reader.output_max_texture(texture_sampler_shader, import_options)
+        self.assertEqual(mxs.classOf(max_bitmap), mxs.Bitmaptexture)
+        self.assertEqual(usd_test_helpers.get_file_path_mxs(max_bitmap.filename), UV_CHECKER_PATH)
+
+    def test_OSL_UberBitmap(self):
+        """Test roundtrip of UberBitmap OSL texture reader"""
+        import_options = dict(_material_import_options)
+        import_options['texture_target_id'] = self.UberBitmapFile
+
+        stage = Usd.Stage.CreateInMemory()
+        bitmap = create_test_osl_bitmap(self.UberBitmapFile, UV_CHECKER_PATH, 'test_OSL_UberBitmap')
+        osl_path = bitmap.OSLPath
+        osl_base_name = os.path.basename(osl_path)
+        self.assertEqual(osl_base_name.lower(), self.UberBitmapFile.lower())
+
+        self.assertEqual(mxs.classOf(bitmap), mxs.OSLMap)
+        texture_sampler, resolved_texture, _, _ = usd_material_writer.output_usd_texture(bitmap, stage, self.parent_path, self.export_options, {}, False)
+        self.assertIsInstance(texture_sampler, UsdShade.NodeGraph)
+        self.assertIsNotNone(resolved_texture)
+
+        texture_sampler_path = "/tests/test_OSL_UberBitmap/test_OSL_UberBitmap"
+        usd_test_helpers.test_texture_sampler_ouput(self, stage, texture_sampler_path, UV_CHECKER_PATH)
+
+        mxs.resetMaxFile(NOPROMPT)
+        texture_sampler_shader = UsdShade.Shader.Get(stage, texture_sampler_path)
+        max_bitmap = usd_material_reader.output_max_texture(texture_sampler_shader, import_options)
+        self.assertEqual(mxs.classOf(max_bitmap), mxs.OSLMap)
+        self.assertEqual(usd_test_helpers.get_file_path_mxs(max_bitmap.filename), UV_CHECKER_PATH)
+        self.assertEqual(os.path.basename(max_bitmap.OSLPath), os.path.basename(osl_path))
+
+    def test_OSL_OSLBitmap(self):
+        """Test roundtrip of OSLBitmap OSL texture reader"""
+        import_options = dict(_material_import_options)
+        import_options['texture_target_id'] = self.OslBitmapFile
+        test_usd_file_path = self.output_prefix + "test_OSL_OSLBitmap.usda"
+        bitmap_name = "test_OSL_OSLBitmap"
+        bitmap = create_test_osl_bitmap(self.OslBitmapFile, UV_CHECKER_PATH, bitmap_name)
+        osl_path = bitmap.OSLPath
+        osl_base_name = os.path.basename(osl_path)
+        self.assertEqual(osl_base_name.lower(), self.OslBitmapFile.lower())
+        self.assertEqual(mxs.classOf(bitmap), mxs.OSLMap)
+
+        stage = Usd.Stage.CreateInMemory()
+        texture_sampler, resolved_texture, _, _ = usd_material_writer.output_usd_texture(bitmap, stage, self.parent_path, self.export_options, {}, False)
+        self.assertIsInstance(texture_sampler, UsdShade.NodeGraph)
+        self.assertIsNotNone(resolved_texture)
+
+        texture_sampler_path = "/tests/test_OSL_OSLBitmap/test_OSL_OSLBitmap"
+        usd_test_helpers.test_texture_sampler_ouput(self, stage, texture_sampler_path, UV_CHECKER_PATH)
+        mxs.resetMaxFile(NOPROMPT)
+        texture_sampler_shader = UsdShade.Shader.Get(stage, texture_sampler_path)
+        max_bitmap = usd_material_reader.output_max_texture(texture_sampler_shader, import_options)
+        self.assertEqual(mxs.classOf(max_bitmap), mxs.OSLMap)
+        self.assertEqual(usd_test_helpers.get_file_path_mxs(max_bitmap.filename), UV_CHECKER_PATH)
+        self.assertEqual(os.path.basename(max_bitmap.OSLPath), os.path.basename(osl_path))
+
+    def test_unsupported_texturenode(self):
+        """Test expected behavior of unsupported texture nodes"""
+        stage = Usd.Stage.CreateInMemory()
+        bitmap = mxs.AdvancedWood()
+        texture_sampler, resolved_texture, _, _ = usd_material_writer.output_usd_texture(bitmap, stage, self.parent_path, self.export_options, {}, False)
+        # an unsupported bitmap texture should return none
+        self.assertIsNone(texture_sampler)
+        self.assertIsNone(resolved_texture)
+
+        # self.assertIsNone(uv_reader)
+        texture_sampler_path = "/tests/test_unsupported_bitmap"
+        prim = stage.GetPrimAtPath(texture_sampler_path)
+        # and there bitmap should not export...
+        self.assertFalse(prim.IsValid())
+
+
+    def test_osl_connections(self):
+        """Test that specific connected channels round-trip as expected with OSL textures"""
+        box = mxs.Box(name="test_box_mat_connections")
+        box.material = mxs.PBRMetalRough()
+        bitmap = create_test_osl_bitmap(self.UberBitmapFile, UV_CHECKER_PATH, 'test_OSL_connections')
+        box.material.base_color_map = create_osl_multi_channel(bitmap, "rgb")
+        box.material.metalness_map = create_osl_multi_channel(bitmap, "r")
+        box.material.roughness_map = create_osl_multi_channel(bitmap, "g")
+        box.material.ao_map = create_osl_multi_channel(bitmap, "b")
+        box.material.opacity_map = create_osl_multi_channel(bitmap, "a")
+        test_usd_file_path = self.output_prefix + "test_osl_connections.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[box])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        stage.Reload()
+        self.assertIsInstance(stage, Usd.Stage)
+        box_mat_path = "/mtl/box_mat"
+        usd_box_mat = UsdShade.Shader.Get(stage, box_mat_path)
+        self.assertIsInstance(usd_box_mat, UsdShade.Shader)
+
+        texture_sampler_path = "/mtl/PBRMetalRough/test_OSL_connections/test_OSL_connections"
+        texture_sampler = UsdShade.Shader.Get(stage, texture_sampler_path)
+        self.assertIsInstance(texture_sampler, UsdShade.Shader)
+        usd_test_helpers.test_texture_sampler_ouput(self, stage, texture_sampler_path, usd_test_helpers.get_file_path_mxs(bitmap.filename))
+
+        mxs.resetMaxFile(NOPROMPT)
+        import_options = mxs.USDImporter.CreateOptions()
+        ret = mxs.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+        box = mxs.getnodebyname("test_box_mat_connections")
+        import_mat = box.material
+        self.assertEqual(mxs.classOf(import_mat), mxs.MaxUsdPreviewSurface)
+
+        diffuseColor_multi_channel_map = box.material.diffuseColor_map
+        self.assertEqual(diffuseColor_multi_channel_map.outputChannelIndex, 1) # rgb
+        metallic_multi_channel_map = box.material.metallic_map
+        self.assertEqual(metallic_multi_channel_map.outputChannelIndex, 2) # r
+        roughness_multi_channel_map = box.material.roughness_map
+        self.assertEqual(roughness_multi_channel_map.outputChannelIndex, 3) # g
+        occlusion_multi_channel_map = box.material.occlusion_map
+        self.assertEqual(occlusion_multi_channel_map.outputChannelIndex, 4) # b
+        opacity_multi_channel_map = box.material.opacity_map
+        self.assertEqual(opacity_multi_channel_map.outputChannelIndex, 5) # a
+
+        diffuseColor_source_map = diffuseColor_multi_channel_map.sourceMap
+        self.assertEqual(mxs.classOf(diffuseColor_source_map), mxs.OSLMap)
+
+
+    def test_bitmaptexture_gamma_1_to_normal_map_usdpreviewsurface_handling(self):
+        """Test that bitmap set gamma to 1 associated to normal map export correctly. (MAXX-70937)"""
+
+        sphere_normal = mxs.Sphere(name="test_sphere_mat_normal_with_bitmaptexture")
+        sphere_normal.material = mxs.MaxUsdPreviewSurface(name="test_mat_normal_with_bitmaptexture")
+
+        normal_map_tex = os.path.join(TEST_DATA_DIR, 'orangepeel_normal.png')
+        normal_bitmap = mxs.BitmapTexture(filename=normal_map_tex)
+        
+        # The assignment to the normal_map will ensure the gamma is set to 1.0
+        sphere_normal.material.normal_map = normal_bitmap
+
+        test_usd_file_path = self.output_prefix + "test_bitmaptexture_gamma_1_to_normal_map_handling.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[sphere_normal])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/Bitmaptexture/Bitmaptexture"
+        usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+        shader_inputs = usd_mat_shader.GetInputs()
+
+        is_bias_present_with_preset_value = False
+        is_scale_present_with_preset_value = False
+        is_sourceColorSpace_present_with_preset_value = False
+
+        for shader_input in shader_inputs:
+            if shader_input.GetBaseName() == "bias" and shader_input.Get() == Gf.Vec4f(-1, -1, -1, 0):
+                is_bias_present_with_preset_value = True
+            if shader_input.GetBaseName() == "scale" and shader_input.Get() == Gf.Vec4f(2, 2, 2, 1):
+                is_scale_present_with_preset_value = True
+            if shader_input.GetBaseName() == "sourceColorSpace" and shader_input.Get() == "raw":
+                is_sourceColorSpace_present_with_preset_value = True
+
+        areCorrectBitmapInputsPresent = is_bias_present_with_preset_value and is_scale_present_with_preset_value and is_sourceColorSpace_present_with_preset_value
+
+        self.assertTrue(areCorrectBitmapInputsPresent)
+
+    def  test_bitmaptexture_gamma_1_to_non_normal_map_usdpreviewsurface_handling(self):
+        """Test that bitmap set to gamma 1 associated to non-normal map export correctly. (MAXX-70937)"""
+
+        sphere_roughness = mxs.Sphere(name="test_sphere_roughness_map_with_bitmaptexture")
+        sphere_roughness.material = mxs.MaxUsdPreviewSurface(name="test_roughness_map_with_bitmaptexture")
+
+        roughness_map_tex = os.path.join(TEST_DATA_DIR, 'orangepeel_normal.png') #doesn't matter what type of file we use
+        roughness_map = mxs.BitmapTexture(filename=roughness_map_tex)
+        roughness_map.bitmap.gamma = 1.0
+
+        sphere_roughness.material.roughness_map = roughness_map
+
+        test_usd_file_path = self.output_prefix + "test_bitmaptexture_gamma_1_to_non_normal_map_handling.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[sphere_roughness])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/Bitmaptexture/Bitmaptexture"
+        usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+        shader_inputs = usd_mat_shader.GetInputs()
+
+        is_bias_present_with_preset_value = False
+        is_scale_present_with_preset_value = False
+        is_sourceColorSpace_present_with_preset_value = False
+
+        for shader_input in shader_inputs:
+            if shader_input.GetBaseName() == "bias" and shader_input.Get() == Gf.Vec4f(-1, -1, -1, 0):
+                is_bias_present_with_preset_value = True
+            if shader_input.GetBaseName() == "scale" and shader_input.Get() == Gf.Vec4f(2, 2, 2, 1):
+                is_scale_present_with_preset_value = True
+            if shader_input.GetBaseName() == "sourceColorSpace" and shader_input.Get() == "raw":
+                is_sourceColorSpace_present_with_preset_value = True
+
+        areCorrectBitmapInputsPresent = is_sourceColorSpace_present_with_preset_value and not is_bias_present_with_preset_value and not is_scale_present_with_preset_value
+
+        self.assertTrue(areCorrectBitmapInputsPresent)
+
+    def test_oslbitmap_gamma_1_to_normal_map_usdpreviewsurface_handling(self):
+        """Test that oslbitmap set gamma to 1 associated to normal map export correctly. (MAXX-70937)"""
+
+        sphere_normal = mxs.Sphere(name="test_sphere_mat_normal_with_OSLBitmap")
+        sphere_normal.material = mxs.MaxUsdPreviewSurface(name="test_mat_normal_with_OSLBitmap")
+
+        normal_map_tex = os.path.join(TEST_DATA_DIR, 'orangepeel_normal.png')
+        normal_map_name = 'test_OSLBitmap_gamma_1_to_normal'
+        osl_normal_bitmap = create_test_osl_bitmap(self.OslBitmapFile, normal_map_tex, normal_map_name)
+
+        osl_normal_bitmap.AutoGamma = 0
+        osl_normal_bitmap.ManualGamma = 1.0
+
+        multi_channel_map = mxs.MultiOutputChannelTexmapToTexmap()
+        multi_channel_map.sourceMap = osl_normal_bitmap
+        out_channel_index = channel_index_map["rgb"]
+        multi_channel_map.outputChannelIndex = out_channel_index
+        multi_channel_map.name = "{0}:{1}".format(normal_map_name, "rgb")
+
+        sphere_normal.material.normal_map = multi_channel_map
+
+        test_usd_file_path = self.output_prefix + "test_oslbitmap_gamma_1_to_normal_map_handling.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[sphere_normal])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/test_OSLBitmap_gamma_1_to_normal/test_OSLBitmap_gamma_1_to_normal"
+        usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+        shader_inputs = usd_mat_shader.GetInputs()
+
+        is_bias_present_with_preset_value = False
+        is_scale_present_with_preset_value = False
+        is_sourceColorSpace_present_with_preset_value = False
+
+        for shader_input in shader_inputs:
+            if shader_input.GetBaseName() == "bias" and shader_input.Get() == Gf.Vec4f(-1, -1, -1, 0):
+                is_bias_present_with_preset_value = True
+            if shader_input.GetBaseName() == "scale" and shader_input.Get() == Gf.Vec4f(2, 2, 2, 1):
+                is_scale_present_with_preset_value = True
+            if shader_input.GetBaseName() == "sourceColorSpace" and shader_input.Get() == "raw":
+                is_sourceColorSpace_present_with_preset_value = True
+
+        areCorrectBitmapInputsPresent = is_bias_present_with_preset_value and is_scale_present_with_preset_value and is_sourceColorSpace_present_with_preset_value
+
+        self.assertTrue(areCorrectBitmapInputsPresent)
+
+    def  test_oslbitmap_gamma_1_to_non_normal_map_usdpreviewsurface_handling(self):
+        """Test that oslbitmap set to gamma 1 associated to non-normal map export correctly. (MAXX-70937)"""
+
+        sphere_roughness = mxs.Sphere(name="test_sphere_roughness_map")
+        sphere_roughness.material = mxs.MaxUsdPreviewSurface(name="test_roughness_map")
+
+        roughness_map_tex = os.path.join(TEST_DATA_DIR, 'orangepeel_normal.png') #doesn't matter what type of file we use
+        roughnesss_map_name = 'test_OSLBitmap_gamma_1_to_non_normal'
+        osl_roughness_bitmap = create_test_osl_bitmap(self.OslBitmapFile, roughness_map_tex, roughnesss_map_name)
+
+        osl_roughness_bitmap.AutoGamma = 0
+        osl_roughness_bitmap.ManualGamma = 1.0
+
+        multi_channel_map = mxs.MultiOutputChannelTexmapToTexmap()
+        multi_channel_map.sourceMap = osl_roughness_bitmap
+        out_channel_index = channel_index_map["rgb"]
+        multi_channel_map.outputChannelIndex = out_channel_index
+        multi_channel_map.name = "{0}:{1}".format(roughnesss_map_name, "rgb")
+
+        sphere_roughness.material.roughness_map = multi_channel_map
+
+        test_usd_file_path = self.output_prefix + "test_oslbitmap_gamma_1_to_non_normal_map_handling.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[sphere_roughness])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+
+        usd_mat_path = "/mtl/test_OSLBitmap_gamma_1_to_non_normal/test_OSLBitmap_gamma_1_to_non_normal"
+        usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+        shader_inputs = usd_mat_shader.GetInputs()
+
+        is_bias_present_with_preset_value = False
+        is_scale_present_with_preset_value = False
+        is_sourceColorSpace_present_with_preset_value = False
+
+        for shader_input in shader_inputs:
+            if shader_input.GetBaseName() == "bias" and shader_input.Get() == Gf.Vec4f(-1, -1, -1, 0):
+                is_bias_present_with_preset_value = True
+            if shader_input.GetBaseName() == "scale" and shader_input.Get() == Gf.Vec4f(2, 2, 2, 1):
+                is_scale_present_with_preset_value = True
+            if shader_input.GetBaseName() == "sourceColorSpace" and shader_input.Get() == "raw":
+                is_sourceColorSpace_present_with_preset_value = True
+
+        areCorrectBitmapInputsPresent = is_sourceColorSpace_present_with_preset_value and not is_bias_present_with_preset_value and not is_scale_present_with_preset_value
+
+        self.assertTrue(areCorrectBitmapInputsPresent)
+
+    def test_normal_map_handling(self):
+        """Test that normal maps export, bump maps do not. (MAXX-59913)"""
+
+        box_bump = mxs.Box(name="test_box_mat_bump") # this has a bump map
+        box_bump.material = mxs.PhysicalMaterial(name="test_mat_bump")
+        box_normal = mxs.Box(name="test_box_mat_normal") # this has a normal map
+        box_normal.material = mxs.PhysicalMaterial(name="test_mat_normal")
+        normal_map_tex = os.path.join(TEST_DATA_DIR, 'fabric_normal.png')
+        bump_map_tex = os.path.join(TEST_DATA_DIR, 'fabric_bump.jpg')
+        normal_bitmap = mxs.BitmapTexture(filename=normal_map_tex)
+        bump_bitmap = mxs.BitmapTexture(filename=bump_map_tex)
+        box_bump.material.bump_map = bump_bitmap
+        box_normal.material.bump_map = mxs.Normal_Bump()
+        box_normal.material.bump_map.normal_map = normal_bitmap
+
+        test_usd_file_path = self.output_prefix + "test_normal_map_handling.usda"
+
+        export_options = mxs.UsdExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        
+        ret = mxs.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options, contentSource=mxs.Name("nodeList"), nodeList=[box_bump, box_normal])
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        bump_mat_path = "/mtl/test_mat_bump/test_mat_bump"
+        usd_bump_mat = UsdShade.Shader.Get(stage, bump_mat_path)
+        self.assertIsInstance(usd_bump_mat, UsdShade.Shader)
+        normal_input = usd_bump_mat.GetInput("normal")
+        # THE BELOW WILL CRASH BEWARE!
+        #self.assertFalse(normal_input.HasConnectedSource())
+        # DO THIS INSTEAD
+        self.assertFalse(normal_input.IsInput(normal_input.GetAttr()), msg=test_usd_file_path)
+
+        normal_mat_path = "/mtl/test_mat_normal/test_mat_normal"
+        usd_normal_mat = UsdShade.Shader.Get(stage, normal_mat_path)
+        self.assertIsInstance(usd_normal_mat, UsdShade.Shader)
+
+        # GetInput() Return the requested input if it exists.
+        normal_input_2 = usd_normal_mat.GetInput("normal")
+        # GetAttr() Explicit UsdAttribute extractor.
+        # IsInput() Test whether a given UsdAttribute represents a valid Input,
+        # which implies that creating a UsdShadeInput from the attribute will succeed.
+        input_valid = normal_input_2.IsInput(normal_input_2.GetAttr())
+        self.assertTrue(input_valid, msg=test_usd_file_path)
+        # HasConnectedSource() Returns true if and only if the shading attribute is currently connected to at least one valid (defined) source.
+        has_connected_source = normal_input_2.HasConnectedSource()
+        self.assertTrue(has_connected_source)
+        source, sourceName, _ = normal_input_2.GetConnectedSource()
+        attr = source.GetOutput(sourceName).GetAttr()
+        target = attr.GetPrim()
+        self.assertTrue(target.IsValid())
+        texture_reader = UsdShade.NodeGraph.Get(stage,target.GetPath().AppendChild(target.GetName()))
+        file_attr = texture_reader.GetInput('file')
+        file_path = file_attr.Get().path
+        self.assertTrue(os.path.samefile(file_path, normal_bitmap.filename))
+
+    def test_absolute_and_relative_paths(self):
+        # type: () -> None
+        """Test roundtrip of max bitmap texture reader"""
+        log_path = self.output_prefix + "test_relative_paths.log"
+        data_texture_filename = os.path.join(TEST_DATA_DIR, "uv_checker.png")
+        test_texture_filename = os.path.join(TEMP_DIR, (self.output_prefix + "uv_checker.png"))
+        shutil.copyfile(data_texture_filename, test_texture_filename)
+
+        material_export_options = dict(self.export_options)
+
+        # create a bitmap texture
+        bitmap_texture = mxs.Bitmaptexture(fileName=test_texture_filename)
+
+        # export to usd relative
+        test_usd_file_path = self.output_prefix + "test_relative_paths.usda"
+        material_export_options["usd_filename"] = test_usd_file_path
+        material_export_options["relative_texture_paths"] = True
+        stage = Usd.Stage.CreateNew(test_usd_file_path)
+        usd_texture_sampler, resolved_texture, uv_texture, _ = usd_material_writer.output_usd_texture(bitmap_texture, stage, self.parent_path, material_export_options, {}, False)
+        stage.Save()
+        self.assertIsInstance(usd_texture_sampler, UsdShade.NodeGraph)
+        self.assertIsInstance(uv_texture, UsdShade.Shader)
+        self.assertIsNotNone(resolved_texture)
+
+        # check that relative paths are correct: relative
+        file_attr = uv_texture.GetInput('file')
+        file_attr_val = file_attr.Get()
+        # path and resolved path are different, one is abs and one is not
+        self.assertTrue(os.path.exists(file_attr_val.resolvedPath))
+        self.assertFalse(file_attr_val.path == file_attr_val.resolvedPath)
+        self.assertFalse(os.path.isabs(file_attr_val.path))
+        self.assertTrue((str(file_attr_val.path)).startswith("./")) #for the Default resolve to always anchor to the exported layer.
+
+        # export to usd absolute
+        test_usd_file_path = self.output_prefix + "test_absolute_paths.usda"
+        material_export_options["usd_filename"] = test_usd_file_path
+        material_export_options["relative_texture_paths"] = False
+        stage = Usd.Stage.CreateNew(test_usd_file_path)
+        usd_texture_sampler, resolved_texture, uv_texture, _ = usd_material_writer.output_usd_texture(bitmap_texture, stage, self.parent_path, material_export_options, {}, False)
+        stage.Save()
+        self.assertIsInstance(usd_texture_sampler, UsdShade.NodeGraph)
+        self.assertIsInstance(uv_texture, UsdShade.Shader)
+        self.assertIsNotNone(resolved_texture)
+
+        # check that absolute paths are correct
+        file_attr = uv_texture.GetInput('file')
+        file_attr_val = file_attr.Get()
+        # path and resolved path are the same absolute path
+        self.assertTrue(os.path.exists(file_attr_val.resolvedPath))
+        self.assertTrue(os.path.normpath(file_attr_val.path.lower()) == file_attr_val.resolvedPath.lower())
+        self.assertTrue(os.path.isabs(file_attr_val.path))
+        # Make sure the path is using forward slashes (so things work on unix/mac)
+        self.assertTrue(test_texture_filename.lower().replace("\\","/") == file_attr_val.path.lower())
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestOutputUsdTexture))
+
+
+if __name__ == "__main__":
+    from importlib import reload
+    reload(usd_material_writer)
+    reload(usd_material_reader)
+    mxs.clearListener()
+    run_tests()
diff --git a/src/Tests/Integration/export_texture_transform_test.ms b/src/Tests/Integration/export_texture_transform_test.ms
new file mode 100644
index 0000000..1dcffdd
--- /dev/null
+++ b/src/Tests/Integration/export_texture_transform_test.ms
@@ -0,0 +1,66 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_TEXTURE_TRANSFORM_TEST_"
+
+struct export_texture_transform_test
+(
+    private
+    test_python_path,
+
+    public
+    function setup =
+    (
+        deleteTestFiles(output_prefix + "*.*")
+        resetmaxfile #noprompt
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+
+    function test_usd_texture_transform_export =
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import export_texture_transform_test"
+        python.Execute "reload(export_texture_transform_test)" 
+        mat_exp_test = python.import("export_texture_transform_test")
+        results = mat_exp_test.run_tests()
+
+        processPythonUnittestResults results
+    ),
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+
+    Tests = #(
+        test_usd_texture_transform_export
+    )
+)
+
+runUsdTestFixture export_texture_transform_test (getThisScriptFilename())
diff --git a/src/Tests/Integration/export_texture_transform_test.py b/src/Tests/Integration/export_texture_transform_test.py
new file mode 100644
index 0000000..60abf1b
--- /dev/null
+++ b/src/Tests/Integration/export_texture_transform_test.py
@@ -0,0 +1,756 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+import os
+import shutil
+
+from importlib import reload
+from enum import Enum
+
+from pxr import Usd, UsdShade, Sdf, Ar
+
+import usd_test_helpers
+import usd_material_writer
+import pymxs
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2021, Autodesk Inc.'
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDExporter)
+
+TEST_DIR = os.path.dirname(__file__)
+TEST_DATA_DIR = os.path.join(TEST_DIR, "data")
+UV_CHECKER_PATH = os.path.join(TEST_DATA_DIR, "uv_checker.png")
+
+class BitmapType(Enum):
+    BITMAP_TEXTURE = 1
+    OSL_BITMAP = 2
+    OSL_UBERBITMAP = 3
+
+# Various wrapping modes that we support, either from BitmapTexture or OSL bitmaps.
+class WrapModes(Enum):
+    REPEAT_S = 1
+    REPEAT_T = 2
+    REPEAT_ST = 3
+    MIRROR_S = 4
+    MIRROR_T = 5
+    MIRROR_ST = 6
+    MIRROR_S_REPEAT_T = 7
+    REPEAT_S_MIRROR_T = 8
+    CLAMP = 9
+    DEFAULT = 10
+    BLACK = 11
+
+channel_index_map = {
+    "rgb": 1,
+    "r": 2,
+    "g": 3,
+    "b": 4,
+    "a": 5
+}
+
+# Builds a Bitmap texture with wrapping and transform parameters.
+def create_texture_bitmap(file_name, name, wrap_mode, tiling, offset, rotate, real_world_scale, real_size):
+    test_bitmap = RT.Bitmaptexture(fileName=file_name, name=name)
+    test_bitmap.coords.U_Tiling = tiling[0]
+    test_bitmap.coords.V_Tiling = tiling[1]
+    test_bitmap.coords.U_Offset = offset[0]
+    test_bitmap.coords.V_Offset = offset[1]
+    test_bitmap.coords.U_Angle = rotate[0]
+    test_bitmap.coords.V_Angle = rotate[1]
+    test_bitmap.coords.W_Angle = rotate[2]
+
+    if wrap_mode == WrapModes.REPEAT_S:
+        test_bitmap.coords.U_Tile = True
+        test_bitmap.coords.V_Tile = False
+        test_bitmap.coords.V_Mirror = False
+    elif wrap_mode == WrapModes.REPEAT_T:
+        test_bitmap.coords.U_Tile = False
+        test_bitmap.coords.U_Mirror = False
+        test_bitmap.coords.V_Tile = True
+    elif wrap_mode == WrapModes.MIRROR_S:
+        test_bitmap.coords.U_Mirror = True
+        test_bitmap.coords.V_Mirror = False
+        test_bitmap.coords.V_Tile = False
+    elif wrap_mode == WrapModes.MIRROR_T:
+        test_bitmap.coords.U_Mirror = False
+        test_bitmap.coords.U_Tile = False
+        test_bitmap.coords.V_Mirror = True
+    elif wrap_mode == WrapModes.REPEAT_ST:
+        test_bitmap.coords.U_Tile = True
+        test_bitmap.coords.V_Tile = True
+    elif wrap_mode == WrapModes.MIRROR_ST:
+        test_bitmap.coords.U_Mirror = True
+        test_bitmap.coords.V_Mirror = True
+    elif wrap_mode == WrapModes.MIRROR_S_REPEAT_T:
+        test_bitmap.coords.U_Mirror = True
+        test_bitmap.coords.V_Tile = True
+    elif wrap_mode == WrapModes.REPEAT_S_MIRROR_T:
+        test_bitmap.coords.U_Tile = True
+        test_bitmap.coords.V_Mirror = True
+    elif wrap_mode == WrapModes.BLACK:
+        test_bitmap.coords.U_Tile = False
+        test_bitmap.coords.U_Mirror = False
+        test_bitmap.coords.V_Tile = False
+        test_bitmap.coords.V_Mirror = False
+
+    if real_world_scale:
+        test_bitmap.coords.realWorldScale  = real_world_scale
+        test_bitmap.coords.realWorldWidth = real_size[0]
+        test_bitmap.coords.realWorldHeight = real_size[1]
+    return test_bitmap
+
+# Builds an OSL multi-channel map.
+# Used to map out individual channels or RGB so we can connect them to a material.
+def create_osl_multi_channel(osl_texture, channel):
+    multi_channel_map = RT.MultiOutputChannelTexmapToTexmap()
+    multi_channel_map.sourceMap = osl_texture
+    out_channel_index = channel_index_map[channel] # rgb
+    multi_channel_map.outputChannelIndex = out_channel_index
+    multi_channel_map.name = "{0}:{1}".format(osl_texture.name, channel)
+    return multi_channel_map
+
+# Builds an OSL uberbitmap with wrapping and transform parameters.
+def create_osl_uberbitmap(file_name, name, wrap_mode, tiling, scale, real_size, offset, rotate, rot_center, rot_axis, real_world_scale):
+    osl_texture = RT.OSLMap()
+    osl_texture.name = name
+    osl_texture.OSLAutoUpdate = True
+    max_root = RT.symbolicPaths.getPathValue("$max")
+    
+    maxver = RT.maxversion()
+    if maxver[0] >= 26000:  # 3ds Max 2024 and up
+        osl_texture.OSLPath = (max_root + "/OSL/UberBitmap2.osl")
+    else:
+        osl_texture.OSLPath = (max_root + "/OSL/UberBitmap.osl")
+
+    osl_texture.filename = file_name
+    osl_texture.UVSet = 1
+
+    osl_texture.RealWorld = real_world_scale
+    osl_texture.Scale = scale
+    osl_texture.Tiling = RT.Point3(tiling[0], tiling[1], 1.0)
+    osl_texture.RealWidth = real_size[0]
+    osl_texture.RealHeight = real_size[1]
+
+    osl_texture.Offset = RT.Point3(offset[0], offset[1], 1.0)
+
+    osl_texture.RotAxis = RT.Point3(rot_axis[0], rot_axis[1], rot_axis[2])
+    osl_texture.RotCenter = RT.Point3(rot_center[0], rot_center[1], rot_center[2])
+    osl_texture.Rotate = rotate[2]
+
+    if wrap_mode == WrapModes.DEFAULT:
+        osl_texture.WrapMode = "default"
+    elif wrap_mode == WrapModes.BLACK:
+        osl_texture.WrapMode = "black"
+    elif wrap_mode == WrapModes.CLAMP:
+        osl_texture.WrapMode = "clamp"
+    elif wrap_mode == WrapModes.REPEAT_ST:
+        osl_texture.WrapMode = "periodic"
+    elif wrap_mode == WrapModes.MIRROR_ST:
+        osl_texture.WrapMode = "mirror"
+
+    return osl_texture
+
+# Builds a simple OSLBitmap with a GetUVW position map.
+def create_osl_bitmap(file_name, name, wrap_mode, scale):
+    osl_texture = RT.OSLMap()
+    osl_texture.name = name
+    osl_texture.OSLAutoUpdate = True
+    max_root = RT.symbolicPaths.getPathValue("$max")
+    maxver = RT.maxversion()
+    if maxver[0] >= 26000:  # 3ds Max 2024 and up
+        osl_texture.OSLPath = (max_root + "/OSL/OSLBitmap2.osl")
+    else:
+        osl_texture.OSLPath = (max_root + "/OSL/OSLBitmap.osl")
+
+    osl_texture.filename = file_name
+    osl_texture.Scale = scale
+
+    if wrap_mode == WrapModes.DEFAULT:
+        osl_texture.WrapMode = "default"
+    elif wrap_mode == WrapModes.BLACK:
+        osl_texture.WrapMode = "black"
+    elif wrap_mode == WrapModes.CLAMP:
+        osl_texture.WrapMode = "clamp"
+    elif wrap_mode == WrapModes.REPEAT_ST:
+        osl_texture.WrapMode = "periodic"
+    elif wrap_mode == WrapModes.MIRROR_ST:
+        osl_texture.WrapMode = "mirror"
+
+    # Need a pos map to set the UV channel.
+    uvw_channel_map = RT.OSLMap()
+    uvw_channel_map.name = "uvw_map"
+    uvw_channel_map.OSLAutoUpdate = True
+    uvw_channel_map.OSLPath = (max_root + "/OSL/GetUVW.osl")
+    uvw_channel_map.UVSet = 1
+    osl_texture.Pos_map = uvw_channel_map
+    return osl_texture
+
+class TestExportTextureTransform(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("EXPORT_TEXTURE_XFORM_")
+        self.data_texture_filename = os.path.join(TEST_DATA_DIR, "uv_checker.png")
+        self.export_options = RT.UsdExporter.CreateOptions()
+        self.export_options.FileFormat = RT.Name("ascii")
+        self.export_options.RootPrimPath = "/"
+        self.export_options.LogLevel = RT.Name("warn")
+
+        usd_test_helpers.load_usd_plugins()
+        RT.resetMaxFile(RT.Name("noprompt"))
+        self.parent_path = Sdf.Path("/tests")
+        box = RT.Box(name="test_box")
+        self.box = box
+
+        box.mapcoords = True
+        box.material = RT.PhysicalMaterial()
+
+    def is_connected(self, target_shader, input_name, source_shader):
+        _input = target_shader.GetInput(input_name)
+        self.assertTrue(_input.HasConnectedSource())
+        valid_connections, _ = _input.GetConnectedSources()
+        self.assertEqual(len(valid_connections), 1)
+        self.assertEqual(valid_connections[0].source.GetPath(), source_shader.GetPath())
+
+
+    def bitmap_transform_test(self, test_name, bitmap_type, wrap_mode, real_world_scale, tiling, scale, real_size, offset, rotate, rot_center, rot_axis, expected_s_wrap, expected_t_wrap, expected_scale, expected_translate, expected_rotate, expected_warnings = 0):
+        # type: () -> None
+        """Test bitmap transform export for the given configuration."""
+
+        # Setup logging.
+        self.export_options.LogPath = "{0}{1}{2}".format(self.output_prefix, test_name, ".log")
+        if os.path.exists(self.export_options.LogPath):
+            os.remove(self.export_options.LogPath)
+
+        test_bitmap_name = "uv_checker_bitmap"
+
+        # Build the map from the given type / config.
+        if bitmap_type == BitmapType.BITMAP_TEXTURE:
+            test_bitmap = create_texture_bitmap(self.data_texture_filename, test_bitmap_name, wrap_mode, tiling, offset, rotate, real_world_scale, real_size)
+        elif bitmap_type == BitmapType.OSL_BITMAP:
+            osl_map = create_osl_bitmap(self.data_texture_filename, test_bitmap_name, wrap_mode, scale)
+            test_bitmap = create_osl_multi_channel(osl_map, "rgb")
+        elif bitmap_type == BitmapType.OSL_UBERBITMAP:
+            osl_map = create_osl_uberbitmap(self.data_texture_filename, test_bitmap_name, wrap_mode, tiling, scale, real_size, offset, rotate, rot_center, rot_axis, real_world_scale)
+            test_bitmap = create_osl_multi_channel(osl_map, "rgb")
+
+        # Connect it to our material.
+        self.box.material.base_color_map = test_bitmap
+
+        # Export to usd.
+        test_usd_file_path = "{0}{1}{2}".format(self.output_prefix, test_name, ".usda")
+
+        ret = RT.USDExporter.ExportFile(test_usd_file_path, exportOptions=self.export_options, contentSource=RT.Name("nodeList"), nodeList=[self.box])
+        self.assertTrue(ret)
+
+        # Test that a transform2d was created and connected:
+        # primvarReader.outputs:result -> transform2d.outputs:result -> uv_checker.inputs:st
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        
+        texture_node_graph_path = "/mtl/{0}".format(test_bitmap_name)
+        texture_node_graph = stage.GetPrimAtPath(texture_node_graph_path)
+        self.assertTrue(texture_node_graph.IsValid())
+        self.assertTrue(texture_node_graph.IsA(UsdShade.NodeGraph))
+        
+        uv_checker_path = "/mtl/{0}/{1}".format(test_bitmap_name, test_bitmap_name)
+        uv_checker_prim = stage.GetPrimAtPath(uv_checker_path)
+        self.assertTrue(uv_checker_prim.IsValid())
+        self.assertTrue(uv_checker_prim.IsA(UsdShade.Shader))
+        usd_uv_checker = UsdShade.Shader(uv_checker_prim)
+        self.assertEqual(usd_uv_checker.GetShaderId(), "UsdUVTexture")
+
+        usd_primvar_reader_path = "/mtl/{0}/PrimvarReader_st".format(test_bitmap_name)
+        usd_primvar_reader_prim = stage.GetPrimAtPath(usd_primvar_reader_path)
+        self.assertTrue(usd_primvar_reader_prim.IsValid())
+        self.assertTrue(usd_primvar_reader_prim.IsA(UsdShade.Shader))
+        usd_primvar_reader = UsdShade.Shader(usd_primvar_reader_prim)
+        self.assertEqual(usd_primvar_reader.GetShaderId(), "UsdPrimvarReader_float2")
+
+        # The final case "(scale == 1.0 and (expected_scale[0] != 1.0 or expected_scale[1] != 1.0)" is to cover
+        # the test_export_bitmap_texture_wrap_modes() cases, which will create UsdTransform2d in certain cases
+        if scale != 1.0 or offset[0] != 0.0 or offset[1] != 0.0 or tiling[0] != 1.0 or tiling[1] != 1.0 or rotate[0] != 0.0 or rotate[1] != 0.0 or rotate[2] != 0.0 or real_size[0] != 1.0 or real_size[1] != 1.0 or (scale == 1.0 and (expected_scale[0] != 1.0 or expected_scale[1] != 1.0)):
+            usd_transform_2d_path = "/mtl/{0}/TextureTransform_st".format(test_bitmap_name)
+            usd_transform_2d_prim = stage.GetPrimAtPath(usd_transform_2d_path)
+            self.assertTrue(usd_transform_2d_prim.IsValid())
+            self.assertTrue(usd_transform_2d_prim.IsA(UsdShade.Shader))
+            usd_transform_2d = UsdShade.Shader(usd_transform_2d_prim)
+            self.assertEqual(usd_transform_2d.GetShaderId(), "UsdTransform2d")
+
+            self.is_connected(usd_uv_checker, "st", usd_transform_2d)
+            self.is_connected(usd_transform_2d, "in", usd_primvar_reader)
+
+            # Validate UsdTransform2d inputs values.
+
+            # scale...
+            scale_input = usd_transform_2d.GetInput('scale')
+            scale_value = scale_input.Get()
+
+            if scale_value  == None:
+                self.assertEqual(None, expected_scale)
+            else:
+                self.assertAlmostEqual(expected_scale[0], scale_value[0], places=5)
+                self.assertAlmostEqual(expected_scale[1], scale_value[1], places=5)
+
+            # Translation...
+            translation_input = usd_transform_2d.GetInput('translation')
+            translation_value = translation_input.Get()
+
+            if translation_value == None:
+                self.assertEqual(None, expected_translate)
+            else:
+                self.assertAlmostEqual(expected_translate[0], translation_value[0], places=5)
+                self.assertAlmostEqual(expected_translate[1], translation_value[1], places=5)
+
+            # Rotation...
+            rotation_input = usd_transform_2d.GetInput('rotation')
+            rotation_value = rotation_input.Get()
+
+            if rotation_value == None:
+                self.assertEqual(None, expected_rotate)
+            else:
+                self.assertAlmostEqual(expected_rotate, rotation_value, places=5)
+
+            # Finaly, check warnings.
+            log_file_handle = open(self.export_options.LogPath)
+            self.assertGreaterEqual(expected_warnings, len(log_file_handle.readlines()))
+            log_file_handle.close()
+        else:
+            self.is_connected(usd_uv_checker, "st", usd_primvar_reader)
+
+        # Make sure we get the correct wrapping mode applied.
+        self.assertEqual(usd_uv_checker.GetInput("wrapS").Get(), expected_s_wrap)
+        self.assertEqual(usd_uv_checker.GetInput("wrapT").Get(), expected_t_wrap)
+
+    def test_export_bitmap_texture_scale(self):
+        # Bitmap texture, scale only.
+        self.bitmap_transform_test("bitmap_texture_scale",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (0.5, 0.2), # tiling
+            None, # Scale, not supported for bitmap texture.
+            (1.0,1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis.
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.5, 0.2), # Scale
+            (0.25, 0.4), # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_scale_negative_u(self):
+        # Test special handling of negative scales. In the UVGen class, negative scaling is implemented
+        # through rotations, but we make sure to export negative scales to USD instead, as only Z rotations 
+        # can be exported.
+    
+        # Bitmap texture, negative U scale.
+        self.bitmap_transform_test("bitmap_texture_scale_negative_u",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (-0.5, 0.2), # tiling
+            None, # Scale, not supported for bitmap texture.
+            (1.0,1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis.
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (-0.5, 0.2), # Scale
+            (0.75, 0.4), # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_scale_negative_v(self):        
+        # Bitmap texture, negative V scale.
+        self.bitmap_transform_test("bitmap_texture_scale_negative_v",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (0.5, -0.2), # tiling
+            None, # Scale, not supported for bitmap texture.
+            (1.0,1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis.
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.5, -0.2), # Scale
+            (0.25, 0.6), # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_scale_negative_u_v(self):            
+        # Bitmap texture, negative U and V scale.
+        self.bitmap_transform_test("bitmap_texture_scale_negative_u_v",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (-0.5, -0.2), # tiling
+            None, # Scale, not supported for bitmap texture.
+            (1.0,1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis.
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (-0.5, -0.2), # Scale
+            (0.75, 0.6), # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_world_scale(self):
+        # Bitmap texture, real world scale
+        self.bitmap_transform_test("bitmap_texture_world_scale",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            True, # Use world scale
+            (1.0, 1.0), # Tiling
+            None, # Scale
+            (15.0, 10.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.066666, 0.1), # Scale
+            None, # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_offset(self):
+        # Bitmap texture, offset
+        self.bitmap_transform_test("bitmap_texture_offset",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 1.0), # Tiling
+            None, # Scale
+            (1.0, 1.0), # Real size
+            (0.3, 0.7), # Offset
+            (0.0,0.0,0.0), # Rotation
+            None, # Rotation center
+            None,
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            (-0.3, -0.7), # Translation
+            None) # Rotation
+
+    def test_export_bitmap_texture_rotation(self):
+        # Bitmap texture, rotation
+        self.bitmap_transform_test("bitmap_texture_rotation",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # use world scale
+            (1.0, 1.0), # Tiling
+            None, # Scale
+            (1.0, 1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,45.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            (0.5, -0.207106), # Translation
+            45.0) # Rotation
+
+    def test_export_bitmap_texture_unsupported_rotation(self):
+        # Bitmap texture, usupported rotation.
+        self.bitmap_transform_test("bitmap_texture_unsupported_rotation",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 1.0), # Tiling
+            None, # Scale
+            (1.0, 1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0, 45.0, 0.0), # Rotation
+            None, # Rotation center
+            None, # Rotatin axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            (-0.207106, 0.0), # Translation
+            None, # Rotation
+            1) # Expect a warning!
+
+    def test_export_bitmap_texture_rotation_with_nonuniform_scale_with_rotation(self):
+        # Bitmap texture, non-uniform scaling + rotation.
+        self.bitmap_transform_test("bitmap_texture_rotation_with_nonuniform_scale_with_rotation",
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 2.0), # Tiling
+            None, # Scale
+            (1.0, 1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0, 0.0, 45.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (1.0, 2.0), # Scale
+            (0.5, -0.914213), # Translation
+            45.0, # Rotation
+            1) # Expect a warning!
+
+    def test_export_bitmap_texture_all_transforms(self):
+        # Bitmap texture, all transforms.
+        self.bitmap_transform_test("bitmap_texture_all_transforms",
+            # Max bitmap config
+            BitmapType.BITMAP_TEXTURE,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (0.5, 0.5), # Tiling
+            None, # Scale
+            (1.0, 1.0), # Real size
+            (0.4, 0.8), # Offset
+            (0.0,0.0,30.0), # Rotation
+            None, # Rotation center
+            None, # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.5, 0.5), # Scale
+            (0.435288, -0.287916), # Translation
+            30.0) # Rotation
+
+    def test_export_bitmap_texture_wrap_modes(self):
+        # (wrap mode, expected wrapS, expected wrapT, expected scale S, expected scale U)
+        wrap_test_cases = [(WrapModes.REPEAT_ST, "repeat", "repeat", 1.0, 1.0),
+                           (WrapModes.REPEAT_S, "repeat", "black", 1.0, 1.0),
+                           (WrapModes.REPEAT_T, "black", "repeat", 1.0, 1.0),
+                           (WrapModes.MIRROR_ST, "mirror", "mirror", 2.0, 2.0),
+                           (WrapModes.MIRROR_S, "mirror", "black", 2.0, 1.0),
+                           (WrapModes.MIRROR_T, "black", "mirror", 1.0, 2.0),
+                           (WrapModes.MIRROR_S_REPEAT_T, "mirror", "repeat", 2.0, 1.0),
+                           (WrapModes.REPEAT_S_MIRROR_T, "repeat", "mirror", 1.0, 2.0),
+                           (WrapModes.BLACK, "black", "black", 1.0, 1.0)]
+
+        for case in wrap_test_cases:
+            self.bitmap_transform_test("bitmap_texture_wrap_test_" + str(case[0]) ,
+                BitmapType.BITMAP_TEXTURE,
+                case[0],
+                False, # Use world scale
+                (1.0, 1.0), # Tiling
+                1.0, # Scale
+                (1.0, 1.0), # Real size
+                (0.0, 0.0), # Offset
+                (0.0, 0.0, 0.0), # Rotation
+                None, # Rotation center
+                None, # Rotation axis
+                # Expected results in USD :
+                case[1], #wrapS
+                case[2], #wrapT
+                (case[3], case[4]), # Scale
+                None, # Translation
+                None) # Rotation
+
+
+    def test_export_osl_uberbitmap_scaling(self):
+        # OSLUberbitmap, scale.
+        self.bitmap_transform_test("osl_uberbitmap_scaling",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (0.5, 0.2), # Tiling
+            2.0, # Scale
+            (1.0,1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,0.0), # Rotation
+            (0.5,0.5,0.0), # Rotation center
+            (0.0,0.0,1.0), # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.25, 0.1), # Scale
+            None, # Translation
+            None) # Rotation
+
+    def test_export_osl_uberbitmap_real_world_scale(self):
+        # OSLUberbitmap, real world scale.
+        self.bitmap_transform_test("osl_uberbitmap_real_world_scale",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            True, # Use world scale
+            (1.0, 1.0), # Tiling
+            1.0, # Scale
+            (10.0, 15.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0, 0.0, 0.0), # Rotation
+            (0.5,0.5,0.0), # Rotation center
+            (0.0,0.0,1.0), # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.1, 0.066666), # Scale
+            (0.0, 0.0), # Translation
+            None) # Rotation
+
+    def test_export_osl_uberbitmap_offset(self):
+        # OSLUberbitmap, offset.
+        self.bitmap_transform_test("osl_uberbitmap_offset",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 1.0), # Tiling
+            1.0, # Scale
+            (1.0, 1.0), # Real size
+            (0.15, 0.85), # Offset
+            (0.0,0.0,0.0), # Rotation
+            (0.5,0.5,0.0), # Rotation center
+            (0.0,0.0,1.0), # Rotation axis.
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            (-0.15, -0.85), # Translation
+            None) # Rotation
+
+    def test_export_osl_uberbitmap_rotation(self):
+        # OSLUberbitmap, rotation.
+        self.bitmap_transform_test("osl_uberbitmap_rotation",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 1.0), # Tiling
+            1.0, # Scale
+            (1.0, 1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,30.0), # Rotation
+            (0.7,0.7,0.0), # Rotation center
+            (0.0,0.0,1.0), # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            (0.443782, -0.256217), # Translation
+            30.0) # Rotation
+
+    def test_export_osl_uberbitmap_rotation_on_non_z_axis(self):
+        # OSLUberbitmap, rotation around arbitrary axis (other than Z) should be ignored.
+        self.bitmap_transform_test("osl_uberbitmap_rotation_on_non_z_axis",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.0, 1.0), # Tiling
+            1.0, # Scale
+            (1.0, 1.0), # Real size
+            (0.0, 0.0), # Offset
+            (0.0,0.0,30.0), # Rotation
+            (0.7,0.7,0.0), # Rotation center
+            (1.0,1.0,1.0), # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            None, # Scale
+            None, # Translation
+            30.0, # Rotation
+            1) # Expect a warning!
+
+    def test_export_osl_uberbitmap_all_transforms(self):
+        # OSLUberbitmap, all transforms.
+        self.bitmap_transform_test("osl_uberbitmap_all_transforms",
+            BitmapType.OSL_UBERBITMAP,
+            WrapModes.REPEAT_ST,
+            False, # Use world scale
+            (1.5, 1.5), # Tiling
+            0.1, # Scale
+            (1.0, 1.0), # Real size
+            (0.2, 0.4), # Offset
+            (0.0,0.0,30.0), # Rotation
+            (0.1,0.3,0.0), # Rotation center
+            (0.0,0.0,1.0), # Rotation axis
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (15.0, 15.0), # scale
+            (2.852885, -6.843266), # translation
+            30.0) # rotation
+
+    def test_export_osl_bitmap_scale(self):
+        # OslBitmap, scale.
+        self.bitmap_transform_test("osl_bitmap_scale",
+            BitmapType.OSL_BITMAP,
+            WrapModes.REPEAT_ST,
+            None, # Use world scale
+            None, # Tiling
+            8.0, # Scale
+            None, # Real size
+            None, # Offset
+            None, # Rotation
+            None, # Rotation center
+            None,
+            # Expected results in USD :
+            "repeat", #wrapS
+            "repeat", #wrapT
+            (0.125, 0.125), # Scale
+            None, # Translation
+            None, # Rotation
+            1) # One warning for the Pos_map input that we need to set the UVW channel.
+
+    def test_export_osl_bitmap_wrap_modes(self):
+        osl_maps = [BitmapType.OSL_UBERBITMAP, BitmapType.OSL_BITMAP]
+
+        # (WrapMode, expected wrapS, expected wrapT)
+        wrap_test_cases = [(WrapModes.REPEAT_ST, "repeat", "repeat"),
+                           (WrapModes.MIRROR_ST, "mirror", "mirror"),
+                           (WrapModes.CLAMP, "clamp", "clamp"),
+                           (WrapModes.DEFAULT, "black", "black"),
+                           (WrapModes.BLACK, "black", "black")]
+        for map_type in osl_maps:
+            for case in wrap_test_cases:
+                self.bitmap_transform_test("osl_"+ str(map_type) +"_wrap_test_" + str(case[0]),
+                    map_type,
+                    case[0], # Wrap mode
+                    False, # Use world scale
+                    (1.0, 1.0), # Tiling
+                    0.10, # Scale
+                    (1.0, 1.0), # Real size
+                    (0.0, 0.0), # Offset
+                    (0.0,0.0,0.0), # Rotation
+                    (0.5,0.5,0.0), # Rotation center
+                    (0.0,0.0,1.0), # Rotation axis
+                    # Expected results in USD :
+                    case[1], #wrapS
+                    case[2], #wrapT
+                    (10.0, 10.0), # scale
+                    (0.0, 0.0) if map_type == BitmapType.OSL_UBERBITMAP else None, # Translation
+                    None if map_type == BitmapType.OSL_UBERBITMAP else None, # Rotation
+                    0 if map_type == BitmapType.OSL_UBERBITMAP  else 1) # Warning because Pos_map is not fully supported for OSLBitmap but needed to set the UVW channel.
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestExportTextureTransform))
+
+if __name__ == "__main__":
+    reload(usd_material_writer)
+    RT.clearListener()
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/export_transforms_test.ms b/src/Tests/Integration/export_transforms_test.ms
new file mode 100644
index 0000000..ddca3bb
--- /dev/null
+++ b/src/Tests/Integration/export_transforms_test.ms
@@ -0,0 +1,256 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_TRANSFORMS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_transforms_test
+(
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+
+    function test_object_offset_transforms = (
+        -- Each pair : (v1: expected usd suffix for the object on the USD side, v2: Max node).
+        local light = DataPair "Light" (free_light());
+        local camera = DataPair "Camera" (Freecamera())
+        local cube = DataPair "Shape" (box())
+        local helper = DataPair "Dummy" (dummy())
+        local usdStage = DataPair "Layer" (UsdStageObject())
+        sphere()    
+        sphere()
+        local sphereGroup = DataPair "Dummy" (group $sphere*) -- Groups are dummy nodes also.
+        
+        local nodes = #(light, camera, cube, helper, usdStage, sphereGroup);
+        
+        -- This setting only applies to meshes and is tested in export_options_test. Here we are only 
+        -- testing the general case, i.e. when Max node maps to two USD prims, an Xform for the Node 
+        -- transform, and xformable prim for the max node.
+        exportOptions.BakeObjectOffsetTransform = false
+        
+        -- Apply some translation/ rotation / scale to both the nodes. Leave offset transform as identity
+        for n in nodes do (
+            n.v2.pos = [1,2,3]
+            n.v2.scale = [1,2,3]
+            n.v2.rotation = quat 1 2 3 1
+        )
+        
+        local exportPath = output_prefix + "test_object_offset_transforms_identity.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        -- Validate the USD export... Max nodes should map to single USD prims.
+        for n in nodes do (
+            local nodePath = "/" + n.v2.name;
+            local objectPath = nodePath + "/" + n.v2.name + "_" + n.v1
+            local nodePrim = stage.GetPrimAtPath(nodePath)
+            local objectPrim = stage.GetPrimAtPath(objectPath)
+            assert_true (pyUsd.Prim.IsValid(nodePrim)) message:("Missing node prim for " + n.v2.name)
+            assert_false (pyUsd.Prim.IsValid(objectPrim)) message:"Should not need a sub-object prim, offset transform was the identity"
+            -- Make sure the node's transform is valid : 
+            xformable = pyUsdGeom.Xformable(nodePrim)
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) n.v2.transform)  message:("The transform is wrong in the USD scene for " + nodePath)
+        )
+        
+        -- Now add some translation/ rotation / scale to both the object offsets.
+        for n in nodes do (
+            n.v2.objectOffsetPos = [4,5,6]
+            n.v2.objectOffsetScale = [4,5,6]
+            n.v2.objectOffsetRot = quat 4 5 6 1
+        )
+        -- Re-export...
+        exportPath = output_prefix + "test_object_offset_transforms.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        
+        -- Validate the USD export... Max node should map to 2 USD prims, to properly represent the object offset with an Xform.
+        for n in nodes do (
+            local nodePath = "/" + n.v2.name;
+            local objectPath = nodePath + "/" + n.v2.name + "_" + n.v1            
+            local xformPrim = stage.GetPrimAtPath(nodePath)
+            local objectPrim = stage.GetPrimAtPath(objectPath)
+            assert_true (pyUsd.Prim.IsValid(xformPrim)) message:("Missing xform object for " + n.v2.name)
+            assert_true (xformPrim.IsA(pyUsdGeom.Xform)) message:("Wrong prim type for " + nodePath)
+            assert_true (pyUsd.Prim.IsValid(objectPrim)) message:("Missing object prim for " + objectPath)
+            
+            -- Make sure the node transform and the offset transform are both valid : 
+            xformable = pyUsdGeom.Xformable(xformPrim)
+            assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) n.v2.transform)  message:("The transform is wrong in the USD scene for " + nodePath)
+            objectXForm = pyUsdGeom.Xformable(objectPrim)
+            local scaleOffset = scaleMatrix n.v2.objectOffsetScale
+            local rotationOffset =n.v2.objectOffsetRot as matrix3
+            local translationOffset = transMatrix n.v2.objectOffsetPos
+            local offsetTransform = scaleOffset * rotationOffset * translationOffset
+
+            if (isGroupHead n.v2) then (
+                -- for max groups, object offset transforms should not have been exported
+                local expectedIdentityTransform = (pyGf.Matrix4d 1.0)
+                assert_true (compare2dMatrix expectedIdentityTransform (objectXForm.GetLocalTransformation()) 4 4) message:("Expected identity on XForm for exported max group for " + objectPath)
+            ) else (
+                assert_true (compareUsdAndMaxTransforms (objectXForm.GetLocalTransformation()) offsetTransform) message:("The transform is wrong in the USD scene for " + objectPath)
+            )
+        )
+    ),
+    function test_object_without_prim_creator = (
+        -- The tape object should not have any prim creator
+        local tapeNode = Tape Name:"tape" pos:[100,100,100]
+        local boxNode = Box Name:"box" pos:[10,10,10]
+        append tapeNode.children boxNode
+        
+        local exportPath = output_prefix + "test_object_offset_transforms_identity.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local tapePrim = stage.GetPrimAtPath("/tape")
+        local boxPrim = stage.GetPrimAtPath("/tape/box")
+        
+        assert_true (pyUsd.Prim.IsValid(tapePrim)) message:("Missing Tape prim")
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:("Missing Box prim")
+            
+        xformable = pyUsdGeom.Xformable(tapePrim)
+        assert_true (compareUsdAndMaxTransforms (xformable.GetLocalTransformation()) tapeNode.transform)
+    ),
+    
+    function export_object_with_wsm_test = (
+        -- Create a hierarchy with transforms and object offsets.
+        local parent = PointHelperObj name:"parent"
+        parent.position = [-10,-10,-10]
+        parent.rotation = (quat  0.3 0 0 0.3)
+        
+        local boxNode = box name:"box"
+        boxNode.parent = parent
+        boxNode.position = [1,2,3]
+        boxNode.objectOffsetPos = [10,15,20]
+        boxNode.objectOffsetRot = (quat  0.3025 0 0 0.707)
+        
+        -- Create a Noise space warp and bind it to the box.
+        local sw = SpaceNoise()        
+        sw.position = [20,30,40] 
+        sw.rotation = (quat  0 0.707 0 0.707)
+        sw.strength = [1000,0,0]
+        bindSpaceWarp boxNode sw
+        
+        -- 1) Make sure the exported box is at the correct position considering the space warp.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.BakeObjectOffsetTransform = true
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        -- Disallow nesting, so that we isolate the effect of the offset when creating or not a shape prim VS the WSM.
+        exportOptions.AllowNestedGprims = true
+        local exportPath = output_prefix + "export_wsm_bake_offset_on.usda"
+
+        assert_true (USDExporter.ExportFile exportPath exportOptions:exportOptions)
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/parent/box")
+        xformable = pyUsdGeom.Xformable(boxPrim)
+        local exportedTransform = xformable.GetLocalTransformation()
+        local expectedTransform = (pyGf.Matrix4d 1 0 0 0 0 0 -1 0 0 1 0 0 11 13 8 1)
+        assert_true(compareUsdAndMaxTransforms exportedTransform expectedTransform) message:"Incorrect box transform following space warp."
+        local boxShapePrim = stage.GetPrimAtPath("/parent/box/box_Shape")
+        assert_false (boxShapePrim.IsValid()) message:"A shape prim should not have been exported."
+        
+        -- Make sure the points are being transformed by the SW and moved back to local space.
+        local pointsWithWSM = (pyVt.Vec3fArray #((pyGf.Vec3f -2.5 6.368503 -18.467451), (pyGf.Vec3f 22.5 6.3685 7.430602), (pyGf.Vec3f -2.5 23.631504 -12.123078), (pyGf.Vec3f 22.500002 23.6315 7.705943), (pyGf.Vec3f -2.5 24.451326 24.987469), (pyGf.Vec3f 22.500002 24.451324 44.305202), (pyGf.Vec3f -2.4999962 41.71432 46.4238), (pyGf.Vec3f 22.500002 41.71432 52.274662)))
+        local geom = pyUsdGeom.Mesh(boxPrim)
+        local boxPrimPoints = (geom.GetPointsAttr()).Get()    
+        assert_true (compareVec3fArrays pointsWithWSM boxPrimPoints) message:"The exported vertices with the noise WSM applied are not correct."
+        
+        -- 2) Rerun the same test, but now with BakeObjectOffsetTransform disabled. Still not expecting 
+        -- a Shape prim, even though an offset exists, indeed, the offset will be part of the transform
+        -- applied to the mesh's point in world space.
+        exportOptions.BakeObjectOffsetTransform = false
+        exportPath = output_prefix + "export_wsm_bake_offset_off.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/parent/box")
+        xformable = pyUsdGeom.Xformable(boxPrim)
+        local exportedTransform = xformable.GetLocalTransformation()
+        assert_true(compareUsdAndMaxTransforms exportedTransform expectedTransform) message:"Incorrect box transform following space warp."
+        local boxShapePrim = stage.GetPrimAtPath("/parent/box/box_Shape")
+        assert_false (boxShapePrim.IsValid()) message:"A shape prim should not have been exported."
+        
+        -- Make sure the points are being transformed by the SW and moved back to local space.
+        local geom = pyUsdGeom.Mesh(boxPrim)
+        local boxPrimPoints = (geom.GetPointsAttr()).Get()            
+        assert_true (compareVec3fArrays pointsWithWSM boxPrimPoints) message:"The exported vertices with the noise WSM applied are not correct."
+            
+        -- 3) Make sure that adding a child node makes no difference.
+        childBox = box name:"child"
+        childBox.parent = boxNode
+        exportPath = output_prefix + "export_wsm_bake_offset_with_child.usda"
+        exportOptions.BakeObjectOffsetTransform = true
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        -- Make sure the box prim is at the correct transform.
+        stage = pyUsd.Stage.Open(exportPath)
+        boxPrim = stage.GetPrimAtPath("/parent/box")
+        xformable = pyUsdGeom.Xformable(boxPrim)
+        exportedTransform = xformable.GetLocalTransformation()
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4) message:"Incorrect box transform following space warp."
+        boxShapePrim = stage.GetPrimAtPath("/parent/box/box_Shape")
+        assert_false (boxShapePrim.IsValid()) message:"A shape prim should not have been exported."
+        childPrim = stage.GetPrimAtPath("/parent/box/child")
+        assert_true (childPrim.IsValid()) message:"The child prim should have been exported."    
+            
+        -- Make sure the points are being transformed by the SW and moved back to local space.
+        local geom = pyUsdGeom.Mesh(boxPrim)
+        local boxPrimPoints = (geom.GetPointsAttr()).Get()            
+        assert_true (compareVec3fArrays pointsWithWSM boxPrimPoints) message:"The exported vertices with the noise WSM applied are not correct."    
+        
+        -- 4) Now disable the WSM. Points should no longer be affected byt the WSM.    
+        boxNode.modifiers[1].enabled = false
+        exportOptions.BakeObjectOffsetTransform = true
+        exportPath = output_prefix + "export_wsm_disabled_mod.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions    
+        stage = pyUsd.Stage.Open(exportPath)
+        boxPrim = stage.GetPrimAtPath("/parent/box")
+        xformable = pyUsdGeom.Xformable(boxPrim)        
+        exportedTransform = xformable.GetLocalTransformation()
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4) message:"Incorrect box transform following space warp."
+        boxShapePrim = stage.GetPrimAtPath("/parent/box/box_Shape")
+        assert_false (boxShapePrim.IsValid())
+
+        -- Make sure the points are no longer affected by the WSM.
+        local geom = pyUsdGeom.Mesh(boxPrim)
+        local boxPrimPoints = (geom.GetPointsAttr()).Get()
+        local pointsWithoutWSM = (pyVt.Vec3fArray #((pyGf.Vec3f -2.5 6.368498 29.041412), (pyGf.Vec3f 22.5 6.368498 29.041412), (pyGf.Vec3f -2.5 23.631502 10.958587), (pyGf.Vec3f 22.5 23.631502 10.958587), (pyGf.Vec3f -2.5 24.451324 46.304417), (pyGf.Vec3f 22.5 24.451324 46.304417), (pyGf.Vec3f -2.5 41.71433 28.221592), (pyGf.Vec3f 22.5 41.71433 28.221592)))
+        assert_true (compareVec3fArrays pointsWithoutWSM boxPrimPoints) message:"The exported vertices with the noise WSM disabled are not correct."
+    ),
+        
+    function teardown = (
+    ),
+
+    Tests = #(test_object_offset_transforms,
+        test_object_without_prim_creator,
+        export_object_with_wsm_test)
+)
+
+runUsdTestFixture export_transforms_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_up_axis_test.ms b/src/Tests/Integration/export_up_axis_test.ms
new file mode 100644
index 0000000..da9e4a2
--- /dev/null
+++ b/src/Tests/Integration/export_up_axis_test.ms
@@ -0,0 +1,112 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_UP_AXIS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_up_axis_test
+(
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+
+    function test_export_y_up_axis = (
+        -- Populate the scene
+        Box pos:[10,10,10] width:10 length:100 height:1000 name:"Box"
+        Box pos:[10,10,10] width:10 length:100 height:1000 name:"ChildBox"
+        $ChildBox.parent = $Box
+        
+        -- Set Export options
+        exportOptions.UpAxis = #y
+        
+        local exportPath = output_prefix + "export_test_y_up_axis.usda"
+
+        -- Export to USD
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local exportedUpAxis = pyUsdGeom.GetStageUpAxis(stage)
+
+        assert_true(exportedUpAxis == pyUsdGeom.Tokens.y) message: "The wrong upAxis value was exported."
+        
+        local exportedBoxPrim = stage.GetPrimAtPath("/Box")
+        local exportedPrimXformable = pyUsdGeom.Xformable(exportedBoxPrim)
+        local exportedTransform = exportedPrimXformable.GetLocalTransformation()
+       
+        local expectedTransform = (pyGf.Matrix4d 1 0 0 0 0 0 -1 0 0 1 0 0 10 10 -10 1)
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4)
+        
+        exportedBoxPrim = stage.GetPrimAtPath("/Box/ChildBox")
+        exportedPrimXformable = pyUsdGeom.Xformable(exportedBoxPrim)
+        exportedTransform = exportedPrimXformable.GetLocalTransformation()
+        expectedTransform = (pyGf.Matrix4d 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1)
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4)
+    ),
+
+    function test_export_z_up_axis = (
+        -- Populate the scene
+        Box pos:[10,10,10] width:10 length:100 height:1000 name:"Box"
+        
+        -- Set Export options
+        exportOptions.UpAxis = #z
+        
+        local exportPath = output_prefix + "export_test_z_up_axis.usda"
+
+        -- Export to USD
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local exportedUpAxis = pyUsdGeom.GetStageUpAxis(stage)
+        assert_true(exportedUpAxis == pyUsdGeom.Tokens.z) message: "The wrong upAxis value was exported."
+        
+        local exportedBoxPrim = stage.GetPrimAtPath("/Box")
+        local exportedPrimXformable = pyUsdGeom.Xformable(exportedBoxPrim)
+        local exportedTransform = exportedPrimXformable.GetLocalTransformation()
+        local expectedTransform = (pyGf.Matrix4d 1 0 0 0 0 1 0 0 0 0 1 0 10 10 10 1)
+        assert_true(compare2dMatrix exportedTransform expectedTransform 4 4)
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(test_export_y_up_axis, 
+        test_export_z_up_axis)
+)
+
+runUsdTestFixture export_up_axis_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_usd_stage_as_reference_test.ms b/src/Tests/Integration/export_usd_stage_as_reference_test.ms
new file mode 100644
index 0000000..31cb676
--- /dev/null
+++ b/src/Tests/Integration/export_usd_stage_as_reference_test.ms
@@ -0,0 +1,438 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdLux = python.import("pxr.UsdLux")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_USD_STAGE_AS_REFERENCE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_usd_stage_as_reference_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    initialUnits, 
+    initialScale,
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+    
+        units.SystemType = #inches
+        units.SystemScale = 1.0
+    ),
+
+    -- Simple case, stage has the same axis/unis and a single prim at the root, set as default Prim.
+    function export_stage_as_reference_test = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+        
+        --  Set up units so that we dont need to adjust anything when referencing this stage.
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254
+        pyUsdGeom.SetStageUpAxis stage "Z"
+            
+        local layerName = "simple_layer_sphere"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage Object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_as_reference_test.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the reference was created as expected.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + (sphere.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+            
+        xformable = pyUsdGeom.Xformable(sphereRef)
+        assert_false ((xformable.GetXformOpOrderAttr()).HasAuthoredValue())
+            
+        -- Make sure the reference is using a relative path. We look at the ascii directly as 
+        -- there is no way from the API. Path should be using forward slashes, posix style, so that 
+        -- it works on mac & linux.
+        local foundRelativeRef = false
+        fs = openFile exportPath
+        while (not eof fs and not foundRelativeRef) do(
+            fileLine = readline fs
+            if (fileLine != "" ) do (
+                foundRelativeRef  = ((findString fileLine ("prepend references = @./"+ (filenameFromPath layerPath) + "@</sphere>")) != undefined)
+            )            
+        )
+        close fs
+        assert_true foundRelativeRef message:"Reference was not setup using a relative path"
+    ),
+    
+    -- Test that a USD Stage pointing to a bad/missing usd layer, behaves correctly.
+    function export_null_stage_as_ref = (
+        -- Create a USD file to reference.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer  "C:/does/not/exist.usda"
+        
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true
+        
+        -- Run the export.
+        local exportPath = output_prefix + "export_null_stage_as_ref.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        -- A prim is created for the Stage object, but it didnt reference anything.
+        local stageObject = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name)
+        assert_true (stageObject.IsValid())            
+        assert_equal 0 ((stageObject.GetChildren()).Count)
+    ),
+    
+    -- Test that a USD Stage Object with a layer that has no suitable prims for referencing is not exported as a reference.
+    function export_stage_no_target_prim = (
+        -- Create an empty layer.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        
+        --  Set up units so that we dont need to adjust anything when referencing this stage.
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254
+        pyUsdGeom.SetStageUpAxis stage "Z"
+            
+        local layerName = "empty_layer"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage Object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_no_target_prim.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- A prim is created for the Stage object, but it didnt reference anything.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local stageObject = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name)
+        assert_true (stageObject.IsValid())
+        assert_equal 0 ((stageObject.GetChildren()).Count)
+    ),    
+    
+    -- Test that an object offset applied to USD Stage object is correctly handled.
+    function export_stage_object_offset = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+        
+        -- Set the default units/up axis. Only want to test the object offset transform.
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254
+        pyUsdGeom.SetStageUpAxis stage "Z"
+        
+        local layerName = "simple_layer_sphere_max_config"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Specify an offset for the stage.
+        stage.objectoffsetpos = [0,0,10]
+        
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_object_offset.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the USD Stage was split into an xform and the reference, because an object offset is applied,
+        -- the stage object was split into 2 prims (xform + object)
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer/" + (sphere.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+            
+        local objectXformPrim = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer")
+        objectXformable = pyUsdGeom.Xformable(objectXformPrim)
+        objectTransform = objectXformable.GetLocalTransformation()
+            
+        local scaleOffset = scaleMatrix stage.objectOffsetScale
+        local rotationOffset = stage.objectOffsetRot as matrix3
+        local translationOffset = transMatrix stage.objectOffsetPos
+        local offsetTransform = scaleOffset * rotationOffset * translationOffset
+            
+        -- Check that the object offset is correctly applyed.
+        assert_true (compareUsdAndMaxTransforms objectTransform offsetTransform)
+    ),
+    
+    -- Test that a USD Stage Object using a layer that has different up-axis config is correctly handled.
+    function export_stage_with_different_units_and_axis = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+        
+        -- Setup the units/axis in a way that will require an adjustment.
+        pyUsdGeom.SetStageMetersPerUnit stage 1 
+        pyUsdGeom.SetStageUpAxis stage "Y"
+        
+        local layerName = "simple_layer_mod_upaxis_and_units"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+                
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_object_offset.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the USD Stage was split into an xform and the reference, because the transform required
+        -- to adjust for the unit/axis setup must not be inherited.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer/" + (sphere.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+            
+        local objectXformPrim = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer")
+        objectXformable = pyUsdGeom.Xformable(objectXformPrim)
+        local localTransform = objectXformable.GetLocalTransformation()
+        
+        -- Meters to inches
+        local expectedTransform = (pyGf.Matrix4d 39.370079 0 0 0 0 0 39.370079 0 0 -39.370079 0 0 0 0 0 1) 
+            
+        -- Check that the object offset is correctly applied.
+        assert_true (compareUsdAndMaxTransforms localTransform expectedTransform)
+    ),
+    
+    -- Test that a USD Stage Object with an object offset AND using a layer that has different up-axis config is correctly handled.
+    -- (Testing both together, because the order of transforms matters)
+    function export_stage_with_object_offset_and_different_units_and_axis = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+        
+        -- Setup the units/axis in a way that will require an adjustment.
+        pyUsdGeom.SetStageMetersPerUnit stage 1 
+        pyUsdGeom.SetStageUpAxis stage "Y"
+        
+        local layerName = "simple_layer_mod_upaxis_and_units_offset"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+        
+        -- Specify an offset for the stage.            
+        stage.objectoffsetpos = [0,0,100]    
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_with_object_offset_and_different_units_and_axis.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the USD Stage was split into an xform and the reference, because the transform required
+        -- to adjust for the unit/axis setup must not be inherited.
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer/" + (sphere.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+        
+        local objectXformPrim = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + stage.name + "_Layer")
+        objectXformable = pyUsdGeom.Xformable(objectXformPrim)
+            
+        local localTransform = objectXformable.GetLocalTransformation()
+        
+        -- Meters to inches + offset of 10
+        local expectedTransform = (pyGf.Matrix4d 39.370079 0 0 0 0 0 39.370079 0 0 -39.370079 0 0 0 0 100 1) 
+            
+        -- Check that the object offset is correctly applied.
+        assert_true (compareUsdAndMaxTransforms localTransform expectedTransform)
+
+    ),
+    
+    -- Test exporting a USD Stage using a layer that has multiple root Prims.
+    function export_stage_with_multi_roots = (
+        -- Create a simple with more than one "root" prim.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        local sphere2 = pyUsdGeom.Sphere.Define stage "/sphere2"
+        -- Purposefully set the second sphere as default, to make sure we arent just 
+        -- targetting the first prim in the file.
+        stage.SetDefaultPrim (sphere2.GetPrim())
+        
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254
+        pyUsdGeom.SetStageUpAxis stage "Z"
+            
+        local layerName = "multiroots_layer"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_with_multi_roots.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the reference was created as expected. Targetting the prim setup as default (/sphere2)
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + (sphere2.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+    ),
+
+    -- Test that is a USD Stage object uses a layer with no default prim, the first suitable prim found is used as reference target.
+    function export_stage_with_no_default_prim = (
+        -- Create a simple layer with more than one "root" prims.
+        local stage = pyUsd.Stage.CreateInMemory()     
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        local sphere2 = pyUsdGeom.Sphere.Define stage "/sphere2"
+        
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254
+        pyUsdGeom.SetStageUpAxis stage "Z"
+            
+        local layerName = "no_default_prim"
+        local layerPath = output_prefix + layerName + ".usda"
+        stage.Export layerPath
+        
+        -- Create a USD Stage object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+            
+        -- Export the scene to USD.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/foo" -- For simplicity.
+        exportOptions.UsdStagesAsReferences = true    
+            
+        local exportPath = output_prefix + "export_stage_with_no_default_prim.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+            
+        -- Validate that the reference was created as expected, targetting the first prim found (/sphere)
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        
+        local sphereRef = exporterLayerStage.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + "/" + (sphere.GetPrim()).GetName())
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+    ),
+    
+    function export_stage_with_instanced_data = (
+        -- Create a box, instance it, and export to a USD layer.
+        local box1Name = "box1"
+        local box2Name = "box2"
+        
+        local box1 = Box name:box1Name pos:[10,0,0] width:10 length:10 height:10
+        local box2 = create_clone box1 #instance box2Name
+        box2.pos = [-10,0,0]
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/foo"
+        exportOptions.FileFormat = #ascii
+        local instanceLayerPath = output_prefix + "instanced_boxes.usd"
+        USDExporter.ExportFile instanceLayerPath exportOptions:exportOptions
+        
+        delete box1
+        delete box2
+        
+        -- Create a USD Stage using it as root layer.
+        local stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer instanceLayerPath
+        
+        -- Rexport that, and make sure instances are there as expected.
+        local exportPath = output_prefix + "reexport_usd_layer_with_instanced_data.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local stageWithInstances = pyUsd.Stage.Open exportPath
+                
+        local box1Prim = stageWithInstances.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + exportOptions.RootPrimPath +  "/" + box1Name)
+        assert_true (box1Prim.IsValid())
+        assert_true (box1Prim.IsInstance())
+        local box2Prim = stageWithInstances.GetPrimAtPath (exportOptions.RootPrimPath + "/" + stage.name + exportOptions.RootPrimPath +  "/" + box2Name)
+        assert_true (box2Prim.IsValid())
+        assert_true (box2Prim.IsInstance())
+    ),
+        
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(export_stage_as_reference_test,
+        export_null_stage_as_ref,
+        export_stage_no_target_prim,
+        export_stage_object_offset,
+        export_stage_with_different_units_and_axis,
+        export_stage_with_object_offset_and_different_units_and_axis,
+        export_stage_with_multi_roots,
+        export_stage_with_no_default_prim,
+        export_stage_with_instanced_data
+    )
+)
+
+runUsdTestFixture export_usd_stage_as_reference_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/export_usdz_test.ms b/src/Tests/Integration/export_usdz_test.ms
new file mode 100644
index 0000000..f6fe7d6
--- /dev/null
+++ b/src/Tests/Integration/export_usdz_test.ms
@@ -0,0 +1,157 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pySdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+pyShade = python.import("pxr.UsdShade")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/EXPORT_USDZ_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct export_usdz_test
+(  
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function test_usdz_exported_stages_as_references = (
+        -- Create a simple layer to bring in as a USD stage.
+        local stage = pyUsd.Stage.CreateInMemory()
+        local sphere = pyUsdGeom.Sphere.Define stage "/sphere"
+        stage.SetDefaultPrim (sphere.GetPrim())
+
+        local layerName = "simple_layer_sphere"
+        local layerPath = output_prefix +  "reference/" + layerName + ".usda"
+        stage.Export layerPath
+
+        -- Create a USD Stage Object from the layer.
+        stage = UsdStageObject name:"UsdStageObject"
+        stage.SetRootLayer layerPath
+
+        -- Export the scene to USDZ.
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/"
+        stageFilename = "usdsphere_sample"
+        local exportPath = output_prefix + (stageFilename + ".usdz")
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        local exporterLayerStage = pyUsd.Stage.Open exportPath
+        sphereRef = exporterLayerStage.GetPrimAtPath ("/UsdStageObject/UsdStageObject_Layer/sphere")
+        assert_true (sphereRef.IsValid())
+        assert_true (sphereRef.IsA(pyUsdGeom.Sphere))
+    ),
+    
+    function test_usdz_exported_bitmaps = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        convertToPoly box001
+        polyop.defaultMapFaces box001 1
+        local physicalMtl = MaxUsdPreviewSurface()
+        box001.material = physicalMtl
+        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local bitmapPath = (testDataDir + @"data\uv_checker.png")
+            
+        physicalMtl.diffuseColor_map = Bitmaptexture fileName:bitmapPath
+        
+        local exportPath = output_prefix + "test_usdz_exported_bitmaps.usdz"
+                    
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.RootPrimPath = "/"
+                
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        expectedFilePath = @"0/uv_checker.png"
+            
+        -- Inspect the content of the USDZ, making sure our bitmap is found...
+        try
+        (
+            pyZip = python.import("zipfile")
+            zipfile = pyZip.ZipFile(exportPath)
+            zipStatus = zipfile.testzip()
+            assert_undefined zipStatus message:("Exported usdz is a corrupted zip file")
+            
+            -- verify the presence of the bitmap in the usdz output.
+            bitmapPresent = false
+                        
+            --print(zipfile.namelist() as Array)
+            
+            local allFilesInZip = (zipfile.namelist() as Array)
+            
+            -- Find the root layer... usdzip will reproduce the hierarchy, so the folder directory depends on
+            -- where the temporary layer was.
+            --local usdFile 
+            
+            local fileName = (getFilenameFile exportPath)
+            
+            -- Find the root layer. We will then make sure the bitmap is correctly placed
+            -- relative to it. hierarchyPrefixLength is size the string in the root layer path which
+            -- comes before the layer file name (for ex : foo/bar/bar/test.usd -> sizeOf("foo/bar/bar/")
+            local hierarchyPrefixLength
+            for item in allFilesInZip do
+            (
+                posInStr = findString item fileName
+                if (posInStr != undefined) do (
+                    hierarchyPrefixLength = posInStr
+                    break
+                )
+            )
+            
+            assert_true (hierarchyPrefixLength != undefined)
+            if hierarchyPrefixLength == undefined then return false
+            
+            for item in allFilesInZip do
+            (
+                -- Remove the hierarchy up to the root layer, to compare things.
+                local relativePath = substring item hierarchyPrefixLength -1
+                if pathConfig.pathsResolveEquivalent expectedFilePath relativePath do
+                (
+                    bitmapPresent = true
+                )
+            )
+            assert_true bitmapPresent message:("Exported usdz should contain the bitmap referenced by the material at " + expectedFilePath)
+        )
+        catch
+        (
+            print(getCurrentException())
+            assert_true false message:("Exported usdz is not a valid zip file")
+        )
+        
+        -- Finally, make sure the correct relative path is set in the layer for the bitmap.
+        local stageHo = pyUsd.Stage.Open exportPath
+        local shaderPrim = pyShade.Shader.Get stageHo "/mtl/MaxUsdPreviewSurface/Bitmaptexture/Bitmaptexture"            
+        local inputFile = (shaderPrim.GetInput("file")).Get() as string
+        assert_equal ("@"+ expectedFilePath + "@") inputFile
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_usdz_exported_stages_as_references,
+        test_usdz_exported_bitmaps
+    )
+)
+
+runUsdTestFixture export_usdz_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/generate_draw_modes_test.ms b/src/Tests/Integration/generate_draw_modes_test.ms
new file mode 100644
index 0000000..2dd0ca2
--- /dev/null
+++ b/src/Tests/Integration/generate_draw_modes_test.ms
@@ -0,0 +1,285 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pySdf = python.import("pxr.Sdf")
+
+testDataDir = (getFilenamePath (getThisScriptFilename())) + @"data\"
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/GENERATE_DRAW_MODE_TESTS_"
+deleteTestFiles(output_prefix + "*.*")
+    
+struct generate_draw_modes_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetMaxFile #noprompt
+        units.SystemType = #inches
+        units.SystemScale = 1
+    ),
+    
+    function point_instancer_generate_draw_modes_test = (
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes.usda")
+        
+        local stage_object = USDStageObject()
+        
+        assert_true stage_object.GeneratePointInstancesDrawModes
+       
+        stage_object.GeneratePointInstancesDrawModes = false
+        stage_object.SetRootLayer instancer_file
+        
+        -- Use the render mesh to inspect the geometry..
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+
+        -- Instancer has 2 protoypes, 2 instances of each.
+        -- 2 Boxes (shared corner vertices) -> 8 verts * 2 = 16 
+        -- 2 Cones -> 31 verts * 2 = 62
+        -- Total : 78 verts
+        assert_equal 78 render_mesh.numVerts
+
+        -- Enable draw modes...
+        stage_object.GeneratePointInstancesDrawModes = true
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+        
+        -- Now all 4 instances are displayed as boxes (unshared verts)
+        -- 24 verts * 4 = 96
+        assert_equal 96 render_mesh.numVerts
+        
+        -- Disable again..
+        stage_object.GeneratePointInstancesDrawModes = false
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+        assert_equal 78 render_mesh.numVerts
+    ),
+    
+    function point_instancer_active_draw_modes_test = (
+        instancer_file = (testDataDir + @"point_instancer_draw_modes.usda")
+        
+        local stage_object = USDStageObject()
+        
+        -- The option defaults to "Box Cards"
+        assert_equal 1 stage_object.PointInstancesDrawMode
+       
+        stage_object.SetRootLayer instancer_file
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+
+        assert_equal 96 render_mesh.numVerts
+
+        -- "Default" draw mode (the actual meshes)
+        stage_object.PointInstancesDrawMode = 0
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+        
+        assert_equal 78 render_mesh.numVerts
+        
+        -- "Cross Cards" draw mode
+        stage_object.PointInstancesDrawMode = 2
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+        assert_equal 96 render_mesh.numVerts
+    ),
+    
+    function point_instancer_draw_modes_clear_session_test = (
+        
+        -- Makes sure that the MXS function to "clear the session layer" (which is the same
+        -- as clicking the button in the UI, will leave the stage in a state that respects 
+        -- the draw mode configuration (i.e. rebuild draw modes after the clear).
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes.usda")
+        
+        local stage_object = USDStageObject()
+        stage_object.SetRootLayer instancer_file
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true
+        assert_equal 96 render_mesh.numVerts
+
+        stage_object.ClearSessionLayer()
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 96 render_mesh.numVerts
+        
+        stage_object.ClearSessionLayer()
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 96 render_mesh.numVerts
+        
+        -- However, clearing the sesison layer "manually" using USD api, will not.
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        
+        (stage.GetSessionLayer()).Clear()
+            
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 78 render_mesh.numVerts
+    ), 
+    
+    function point_instancer_draw_modes_generate_function = (
+        
+        -- Test the "GenerateDrawModes()" MXS function.
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes.usda")
+        
+        local stage_object = USDStageObject()
+        stage_object.SetRootLayer instancer_file
+        
+        -- Manually clear the session layer.
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        
+        (stage.GetSessionLayer()).Clear()
+            
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 78 render_mesh.numVerts
+            
+        -- Now force update the generated  draw modes.
+        stage_object.GenerateDrawModes()
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 96 render_mesh.numVerts
+            
+        -- Do it again, except this time, disable draw mode generation for instancers...
+        (stage.GetSessionLayer()).Clear()
+        stage_object.GeneratePointInstancesDrawModes = false
+        
+        stage_object.GenerateDrawModes()
+        
+        render_mesh = snapshotasmesh stage_object renderMesh:true    
+        assert_equal 78 render_mesh.numVerts        
+    ),
+    
+    function point_instancer_draw_modes_no_authored_kinds = (
+        -- Kinds need to be authored in the entire hierarchy for draw modes to work, 
+        -- this test checks authored kinds...
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes_authored_kinds.usda")
+        
+        local stage_object = USDStageObject()
+        stage_object.SetRootLayer instancer_file
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        
+        prim = stage.GetPrimAtPath("/Test1")     
+        assert_equal "assembly" ((pyUsd.ModelAPI(prim)).GetKind())
+        prim = stage.GetPrimAtPath("/Test1/Instancer")
+        assert_equal "assembly" ((pyUsd.ModelAPI(prim)).GetKind())            
+        prim = stage.GetPrimAtPath("/Test1/Instancer/Protos")
+        assert_equal "assembly" ((pyUsd.ModelAPI(prim)).GetKind())
+        prim = stage.GetPrimAtPath("/Test1/Instancer/Protos/Proto1")
+        assert_equal "component" ((pyUsd.ModelAPI(prim)).GetKind())
+        prim = stage.GetPrimAtPath("/Test1/Instancer/Protos/Proto2")
+        assert_equal "component" ((pyUsd.ModelAPI(prim)).GetKind())
+    ),    
+   
+    function point_instancer_draw_modes_user_authored_kinds = (
+        -- Kinds need to be authored in the entire hierarchy for draw modes to work, 
+        -- this test checks authored kinds...
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes_authored_kinds.usda")
+        
+        local stage_object = USDStageObject()
+        stage_object.SetRootLayer instancer_file
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        
+        prim = stage.GetPrimAtPath("/Test2")     
+        assert_equal "assembly" ((pyUsd.ModelAPI(prim)).GetKind()) --> Overruled component->assembly
+        prim = stage.GetPrimAtPath("/Test2/Instancer")
+        assert_equal "group" ((pyUsd.ModelAPI(prim)).GetKind()) --> User authored kind kept   
+        prim = stage.GetPrimAtPath("/Test2/Instancer/Protos")
+        assert_equal "group" ((pyUsd.ModelAPI(prim)).GetKind()) -- User authored kind kept
+        proto1 = stage.GetPrimAtPath("/Test2/Instancer/Protos/Proto1")
+        assert_equal "group" ((pyUsd.ModelAPI(prim)).GetKind()) --> User authored kind kept
+        proto2 = stage.GetPrimAtPath("/Test2/Instancer/Protos/Proto2")
+        assert_equal "group" ((pyUsd.ModelAPI(prim)).GetKind()) --> User authored kind kept
+                    
+        -- The two prototypes were left at "kind = group", but make sure we signaled that 
+        -- the Draw Modes should be applied at the level anyway
+        assert_true (proto1.HasAPI(pyUsdGeom.ModelAPI))
+        local attr1 = (pyUsdGeom.ModelAPI(proto1)).GetModelApplyDrawModeAttr();
+        
+        assert_true (attr1.IsAuthored())
+        assert_true (attr1.Get())
+            
+        assert_true (proto2.HasAPI(pyUsdGeom.ModelAPI))
+        local attr2 = (pyUsdGeom.ModelAPI(proto2)).GetModelApplyDrawModeAttr();
+        assert_true (attr2.IsAuthored())
+        assert_true (attr2.Get())
+    ),    
+    
+    function point_instancer_draw_modes_sublayer_setup = (
+        -- Tests that generated draw modes are authored on a sublayer of the session layer.
+        
+        instancer_file = (testDataDir + @"point_instancer_draw_modes_authored_kinds.usda")
+        
+        local stage_object = USDStageObject()
+        stage_object.SetRootLayer instancer_file
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        
+        sublayers = (stage.GetSessionLayer()).subLayerPaths
+            
+        -- Should find one sublayer..
+        assert_equal 1 sublayers.count
+            
+        drawModesLayerPreSave = sublayers[1]
+        
+        -- Test that the anomymous layer is cleaned/regenerated when reloading the max scene from disk.
+        local maxSceneSavePath = output_prefix + "drawModesLayer.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        loadMaxFile maxSceneSavePath
+            
+        stage_object = $UsdStage001
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stage_object.cacheId))
+        sublayers = (stage.GetSessionLayer()).subLayerPaths
+            
+        assert_equal 1 sublayers.count
+        assert_defined (pySdf.Layer.FindOrOpen(sublayers[1]))
+    ),        
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        point_instancer_generate_draw_modes_test,
+        point_instancer_active_draw_modes_test,
+        point_instancer_draw_modes_clear_session_test,
+        point_instancer_draw_modes_generate_function,
+        point_instancer_draw_modes_no_authored_kinds,
+        point_instancer_draw_modes_user_authored_kinds,
+        point_instancer_draw_modes_sublayer_setup
+    )
+)
+
+runUsdTestFixture generate_draw_modes_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/header_check_test.ms b/src/Tests/Integration/header_check_test.ms
new file mode 100644
index 0000000..678f5d7
--- /dev/null
+++ b/src/Tests/Integration/header_check_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct header_check_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_header_comments = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import header_check_test"
+        python.Execute "reload(header_check_test)"
+        -- Run tests.
+        python_test = python.import("header_check_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_header_comments
+    )
+)
+
+runUsdTestFixture header_check_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/header_check_test.py b/src/Tests/Integration/header_check_test.py
new file mode 100644
index 0000000..67df4d7
--- /dev/null
+++ b/src/Tests/Integration/header_check_test.py
@@ -0,0 +1,138 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+import usd_test_helpers
+
+from pymxs import runtime as mxs
+
+import os, sys, glob
+import re
+import unittest
+
+adskRegex = r"""
+.* Copyright \d\d\d\d Autodesk
+.*
+.* Licensed under the Apache License, Version 2\.0 \(the \"License\"\);
+.* you may not use this file except in compliance with the License\.
+.* You may obtain a copy of the License at
+.*
+.*     http://www\.apache\.org/licenses/LICENSE-2\.0
+.*
+.* Unless required by applicable law or agreed to in writing, software
+.* distributed under the License is distributed on an \"AS IS\" BASIS,
+.* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.
+.* See the License for the specific language governing permissions and
+.* limitations under the License\.
+"""
+
+pixarRegex = r"""
+.* Copyright \d\d\d\d Pixar
+.*
+.* Licensed under the Apache License, Version 2\.0 \(the \"License\"\);
+.* you may not use this file except in compliance with the License\.
+.* You may obtain a copy of the License at
+.*
+.*     http://www\.apache\.org/licenses/LICENSE-2\.0
+.*
+.* Unless required by applicable law or agreed to in writing, software
+.* distributed under the License is distributed on an \"AS IS\" BASIS,
+.* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.
+.* See the License for the specific language governing permissions and
+.* limitations under the License\.
+.*
+.* © \d\d\d\d Autodesk, Inc. All rights reserved\.
+"""
+
+excludedExtensions = [
+    "ui", "png", "jpg", "mtlx", "rc", "vcxproj", "vcxproj.filters", "vcxproj.user", 
+    "filters", "db", "def", "ts", "pyc", "json", "usd", "usda", "abc", "xml", 
+    "ipch", "props", "md", "VC", "common", "qrc", "cmd", "max", "suo", "sln",
+    ".mat", "material_conversion", "mat_def", "mcr", "ms.res", "mcr.res",
+    "html", "css", "min.css", "dlo.mui", "dli.mui", "test.pdb", "test.ilk",
+    "test.gup", "dll.mui", "db-wal", "VC.db-shm", "VC.opendb", "VC.db-wal",
+    "VC.db-shm", ".component.localization.targets", "dll", "dle.mui", "aps",
+    "usdc", "usdz", "mnx", "user", "component.localization.targets", "r",
+    "clang-format", "gitattributes", "gitignore", "txt", "c07", "vbs"
+]
+excludedFiles = ["qrc_resource.cpp"]
+excludedDirs = ["build","docs",".git",".github",".jenkins","artifacts"]
+root = "..\\..\\"
+
+class headerCheckTest(unittest.TestCase):
+    def setUp(self):
+        mxs.resetMaxFile(mxs.Name('NOPROMPT'))
+        usd_test_helpers.load_usd_plugins()
+
+    def testAllFilesHeader(self):
+        print("\n")
+        errorFound = False
+        totalFiles = 0
+        totalMissing = 0
+
+        extStr = ""
+        for i, ext in enumerate(excludedExtensions):
+            if i != len(excludedExtensions)-1:
+                extStr += ext + "|"
+            else:
+                extStr += ext
+        regex = f".*\.({extStr})$"
+
+        for path, subdirs, files in os.walk(root):
+            firstFolder = ""
+            folders = path.split("\\")
+
+            for folder in folders:
+                if folder != "..":
+                    firstFolder = folder
+                    break
+            
+            if(firstFolder not in excludedDirs):
+                for name in files:
+                    if name not in excludedFiles and not re.search(regex, name):
+                        try:
+                            totalFiles +=1
+                            filePath = os.path.join(path, name)
+                            file = open(filePath, 'r', encoding='UTF8')
+                            content = file.read()
+                            file.close()
+
+                            if not re.search(adskRegex, content) and not re.search(pixarRegex, content):
+                                print("[ERROR] Header missing for: " + filePath)
+                                totalMissing += 1
+                                errorFound = True
+                        except:
+                            print("Can't read: " + filePath + ", please check the encoding.")
+
+        if not errorFound:
+            print(f"Verified {totalFiles} and there's no missing headers.")
+        else:
+            print(f"Header missing for {totalMissing}/{totalFiles} files")
+        self.assertFalse(errorFound)
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(
+        unittest.TestLoader().loadTestsFromTestCase(headerCheckTest)
+    )
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/helpers/fps_profiler.mxs b/src/Tests/Integration/helpers/fps_profiler.mxs
new file mode 100644
index 0000000..e97f291
--- /dev/null
+++ b/src/Tests/Integration/helpers/fps_profiler.mxs
@@ -0,0 +1,164 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+-- Utility to profile max viewport playback performance for a USD animation.
+struct fps_profiler
+(
+    filepath = "",
+    initialAnimRange, 
+    initialFrameRate,
+    stageObject,
+    
+    FPSArray,
+    framestart,
+    averageFPS,
+    minFPS,
+    maxFPS,
+    
+    function get_fps = 
+    (
+        -- Stop tracking time for previous frame
+        frameEnd = timeStamp()
+
+        if (currentTime != animationRange.start) then
+        (
+            frameTime = (frameEnd - frameStart) / 1000.0
+            fps = 1.0 / frameTime
+            append FPSArray fps
+        )
+
+        -- Start tracking time for current frame
+        frameStart = timeStamp()
+    ),
+
+    function measure_animation_fps =
+    (
+        FPSArray = #()
+        framestart = 0
+        averageFPS = 0
+        minFPS = 3.402823466e+38
+        maxFPS = -3.402823466e+38
+        
+        slidertime = animationrange.end
+        
+        registerTimeCallback get_fps
+        -- Loop through the animation, measuring the fps from the callback
+        -- we registered.
+        for t in (animationrange.start) to (animationRange.end) do;
+        (
+            slidertime = t
+        )
+        unRegisterTimeCallback get_fps
+                
+        -- Calculate Min,Max, and average fps.
+        sum = 0
+        for i = 1 to FPSArray.count do
+        (
+            sum += FPSArray[i]
+        )
+        averageFPS = sum / (FPSArray.count as float)
+        for fps in FPSArray do
+        (
+            if (fps < minFPS) then (
+                minFPS = fps
+            )
+            if (fps > maxFPS) then (
+                maxFPS = fps
+            )
+        )
+    ),
+    
+    function setup =
+    (
+        resetMaxFile #noprompt
+    
+        -- Maximize the Viewport 
+        actionMan.executeAction 0 "50026"
+        
+        -- Create the stage.
+        stageObject = UsdStageObject()
+        stageObject.SetRootLayer filepath
+        stageObject.Name = filepath
+    
+        -- Zoom to the extents of the stage object.
+        select stageObject
+        max zoomext sel
+        clearSelection()
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stageObject.cacheId))
+
+        -- Setup the timeconfig to match the usd content. Keep track of what was
+        -- there initially, to cleanup after ourselves.
+        initialAnimRange = animationRange
+        initialFrameRate = frameRate
+        stage.GetTimeCodesPerSecond()
+        frameRate  = stage.GetTimeCodesPerSecond()
+        
+        -- If no animation range defined, just run 100 frames.
+        start = (stage.GetStartTimeCode())
+        end = (stage.GetEndTimeCode())            
+        if (start == end) do end = start + 100
+                    
+        animationRange = interval start end
+    ),
+
+    function test =
+    (
+        -- Run the animation multiple times, to profile different things...    
+        
+        -- We do some bounding box caching on a thread, depending on dataset we may be slower 
+        -- on the first run, but not necessarily.
+        stageObject.DisplayMode = 2
+        measure_animation_fps()
+        format "Average FPS for % :\n" (getFileNameFile(filepath))
+        format "     UsdPreviewSurface (1st) : % \n" (averageFPS as String)
+            
+        -- Bounding boxes are guarantied to be cached now.
+        stageObject.DisplayMode = 2
+        measure_animation_fps()
+        format "     UsdPreviewSurface (2nd) : % \n " (averageFPS as String)
+              
+        -- Using USD Display Colors.
+        stageObject.DisplayMode = 1
+        measure_animation_fps()
+        format "    Display colors           : % \n " (averageFPS as String)    
+            
+        -- Using the 3dsMax object's wire color.
+        stageObject.DisplayMode = 0
+        measure_animation_fps()
+        format "    Wire color               : % \n " (averageFPS as String)
+    
+    ),
+
+    function teardown =
+    (
+        frameRate  = initialFrameRate
+        animationRange = initialAnimRange
+    ),
+
+    Tests = #(test)
+)
+
+function profile_viewport_performance filepath =
+(
+    fp = fps_profiler filepath:filepath
+    fp.setup()
+    fp.test()
+    fp.teardown()
+)
\ No newline at end of file
diff --git a/src/Tests/Integration/helpers/usd_test_utils.mxs b/src/Tests/Integration/helpers/usd_test_utils.mxs
new file mode 100644
index 0000000..a2d73f3
--- /dev/null
+++ b/src/Tests/Integration/helpers/usd_test_utils.mxs
@@ -0,0 +1,366 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+function getUsdImporterPluginIndex =
+(
+    for i = 1 to pluginManager.pluginDllCount do ( 
+        if (pluginManager.pluginDllName i) == "usdimport.dli" then return i
+    )
+    return -1;
+)
+
+function getUsdExporterPluginIndex =
+(
+    for i = 1 to pluginManager.pluginDllCount do ( 
+        if (pluginManager.pluginDllName i) == "usdexport.dle" then return i
+    )
+    return -1;
+)
+
+function getUsdBinPath =
+(
+    pluginIndex = getUsdImporterPluginIndex()
+    usdBinPath = pluginManager.pluginDllDirectory pluginIndex
+    -- In versions < 2023, pluginManager.pluginDllDirectory would return the plugin's dll 
+    -- path and not the directory, this issue was since fixed.
+    if (getFilenameType usdBinPath) != "" do (
+        usdBinPath = pathConfig.removePathLeaf usdBinPath
+    )
+    return usdBinPath
+)
+
+function setupUsdPlugins =
+(
+    --make sure that USDImporter.dli is loaded
+    pluginManager.loadClass USDImporter
+    --make sure that USDExporter dle is loaded
+    pluginManager.loadClass USDExporter
+    --make sure that MaxUsdObjects dlo is loaded if it exists.
+    try (pluginmanager.loadclass USDStageObject) catch () 
+
+    --make sure that usd python bindings are accessible
+    pluginIndex = getUsdImporterPluginIndex()
+    assert_true (pluginIndex > 0) message:"Could not find usdimport.dli plugin"
+    usdPythonPath = pathConfig.removePathLeaf (pluginManager.pluginDllDirectory pluginIndex)
+    usdPythonPath = pathConfig.appendPath usdPythonPath "python"
+    pysys = python.import("sys")
+    if pysys.path.__contains__(usdPythonPath) then print "usd python path already set" else pysys.path.insert 0 usdPythonPath
+)
+FLT_EPSILON = 1e-5
+
+function compareFloats f1 f2 = 
+(
+    if abs(f1 - f2) > FLT_EPSILON then (
+        return false
+    )
+    return true
+)
+
+function compare2dMatrix matrix1 matrix2 numberOfRow numberOfColumn =
+(
+    if numberOfRow < 1 or numberOfColumn < 1 do return false
+
+    for i = 1 to numberOfRow do (
+        for j = 1 to numberOfColumn do (
+            if abs(matrix1[i][j] - matrix2[i][j]) > FLT_EPSILON then (
+                return false
+            )
+        )
+    )
+    return true
+)
+
+function compareVec3fArrays array1 array2 =
+(
+    local countEqual = array1.count == array2.count
+    if not countEqual do 
+    (
+        return false
+    )
+    for i = 1 to array1.count do 
+    (
+        if (array1[i][1] != array2[i][1]) or (array1[i][2] != array2[i][2]) or (array1[i][3] != array2[i][3]) do 
+        (
+            return false
+        )
+    )
+    return true
+)
+
+function compareUsdAndMaxTransforms usdTransform maxTransform =
+(
+    -- Max uses a 4x3 matrix
+    return compare2dMatrix usdTransform maxTransform 4 3
+)
+
+-- Sanitize naming for automation framework to avoid triggering false fails due to parsed keywords in logs
+function removeAutomationKeywords functionName =
+(
+    f = substituteString (functionName as string) "error" "err*r"
+    f = substituteString f "exception" "excepti*n"
+    f = substituteString f "failure" "failu*e"
+    f = substituteString f "assert" "as*ert"
+    return f
+)
+
+function runUsdTestFixture fixture filename =
+(
+    if undefined == run_test_fixture then
+    (
+        -- Back out of all the undos
+        local undoDepth = 0
+        while theHold.Holding() do
+        (
+            theHold.Accept ""
+            undoDepth+=1
+        )
+        clearListener()
+        foo = fixture()
+        format "\n[TEST_FIXTURE]\n"
+        for t in foo.Tests do (
+            t_sanitized = removeAutomationKeywords t
+
+            -- If `assert_managed_python` is defined, assert(s) clearing is managed by the calling python script.
+            -- `assert_managed_python` is set when this script is called from `test_runner.py`, which is called by `run_integration_test.py`.
+            -- (`run_integration_test.py` is a test utility wrapper used to run USD tests.)
+
+            if undefined == assert_managed_python then
+            (
+                AssertReporter.Clear()
+            )
+
+            format "[SETUP] %\n" t_sanitized
+            foo.setup()
+            
+            local assert_failure_tracker = AssertReporter.GetAssertFailuresCount()
+            local test_name = substituteString (t as string) "()" ""
+            local instance_function = getProperty foo test_name
+            instance_function()
+
+            if AssertReporter.GetAssertFailuresCount() > assert_failure_tracker then (
+                print (AssertReporter.GetMessages())
+            ) else (
+                format "Successfully executed %\n" t_sanitized
+            )
+            format "[TEARDOWN] %\n" t_sanitized
+            foo.Teardown()
+        )
+        -- Reinstate all the undos
+        for i=1 to undoDepth do
+        (
+            theHold.Begin()
+        )
+    )
+    else
+    (
+        clearlistener()
+        format "-- Fixture found!\n"
+        run_test_fixture fixture script:filename
+    )
+)
+
+    
+function compareMaxAndUsdColors &maxColor &usdColor label = 
+(
+    local message = "Unexpected value for " + label
+    assert_float_equal (maxColor.r/255) usdColor[1] message: message
+    assert_float_equal (maxColor.g/255) usdColor[2] message: message
+    assert_float_equal (maxColor.b/255) usdColor[3] message: message
+)
+
+testBaseColorValue = (color 111 222 111)
+testEmitColorValue = (color 123 124 125)
+testSpecularColorValue = (color 121 122 127)
+testNormalColorValue = (color 12 44 145)
+testTransparencyValue = 0.23
+testRoughnessValue = 0.44
+testMetalnessValue = 0.12
+testCoatingValue = 0.543
+testCoatRoughnessValue = 0.213
+testTransIorValue = 1.2
+testOcclusionValue = 0.4
+testOpacityThresholdValue = 0.69
+testDisplacementValue = 0.001
+
+function setupValuesOnPhysMtl &physicalMtl = (
+    physicalMtl.Base_Color = testBaseColorValue
+    physicalMtl.emit_color = testEmitColorValue
+    physicalMtl.Transparency = testTransparencyValue
+    physicalMtl.roughness = testRoughnessValue
+    physicalMtl.metalness = testMetalnessValue
+    physicalMtl.coating = testCoatingValue
+    physicalMtl.coat_roughness = testCoatRoughnessValue
+    physicalMtl.trans_ior = testTransIorValue    
+)
+
+function setupValuesOnPreviewSurfaceMtl &previewSurfaceMtl = (
+    previewSurfaceMtl.diffuseColor = testBaseColorValue
+    previewSurfaceMtl.emissiveColor = testEmitColorValue
+    previewSurfaceMtl.opacity = testTransparencyValue
+    previewSurfaceMtl.roughness = testRoughnessValue
+    previewSurfaceMtl.metallic = testMetalnessValue
+    previewSurfaceMtl.clearcoat = testCoatingValue
+    previewSurfaceMtl.clearcoatRoughness = testCoatRoughnessValue
+    previewSurfaceMtl.ior = testTransIorValue
+    previewSurfaceMtl.specularColor = testSpecularColorValue
+    previewSurfaceMtl.occlusion = testOcclusionValue
+    previewSurfaceMtl.normal = testNormalColorValue
+    previewSurfaceMtl.opacityThreshold = testOpacityThresholdValue
+    previewSurfaceMtl.displacement = testDisplacementValue
+)
+
+
+function validateValueOnPhysMtl &shaderPrim = (
+    local usdDiffuseColor = (shaderPrim.GetInput("diffuseColor")).Get()
+    compareMaxAndUsdColors testBaseColorValue usdDiffuseColor "diffuseColor"
+        
+    local usdEmissiveColor = (shaderPrim.GetInput("emissiveColor")).Get()
+    compareMaxAndUsdColors testEmitColorValue usdEmissiveColor "emissiveColor"
+            
+    local usdOpacity = (shaderPrim.GetInput("opacity")).Get()
+    assert_float_equal (1 - testTransparencyValue) usdOpacity Message:"Unexpected opacity value."
+            
+    local usdRoughness = (shaderPrim.GetInput("roughness")).Get()
+    assert_float_equal testRoughnessValue usdRoughness Message:"Unexpected roughness value."
+            
+    local usdMetallic = (shaderPrim.GetInput("metallic")).Get()
+    assert_float_equal testMetalnessValue usdMetallic Message:"Unexpected metallic value."
+            
+    local usdClearcoat = (shaderPrim.GetInput("clearcoat")).Get()
+    assert_float_equal testCoatingValue usdClearcoat Message:"Unexpected coating value."
+            
+    local usdClearcoatRoughness = (shaderPrim.GetInput("clearcoatRoughness")).Get()
+    assert_float_equal testCoatRoughnessValue usdClearcoatRoughness Message:"Unexpected clearcoatRoughness value."
+        
+    local usdIor = (shaderPrim.GetInput("ior")).Get()
+    assert_float_equal testTransIorValue usdIor Message:"Unexpected ior value."
+)
+
+function validateValueOnPreviewSurfaceMtl &shaderPrim = (
+    local usdDiffuseColor = (shaderPrim.GetInput("diffuseColor")).Get()
+    compareMaxAndUsdColors testBaseColorValue usdDiffuseColor "diffuseColor"
+
+    local usdEmissiveColor = (shaderPrim.GetInput("emissiveColor")).Get()
+    compareMaxAndUsdColors testEmitColorValue usdEmissiveColor "emissiveColor"
+
+    local usdOpacity = (shaderPrim.GetInput("opacity")).Get()
+    assert_float_equal testTransparencyValue usdOpacity Message:"Unexpected opacity value."
+
+    local usdRoughness = (shaderPrim.GetInput("roughness")).Get()
+    assert_float_equal testRoughnessValue usdRoughness Message:"Unexpected roughness value."
+
+    local usdMetallic = (shaderPrim.GetInput("metallic")).Get()
+    assert_float_equal testMetalnessValue usdMetallic Message:"Unexpected metallic value."
+
+    local usdClearcoat = (shaderPrim.GetInput("clearcoat")).Get()
+    assert_float_equal testCoatingValue usdClearcoat Message:"Unexpected coating value."
+
+    local usdClearcoatRoughness = (shaderPrim.GetInput("clearcoatRoughness")).Get()
+    assert_float_equal testCoatRoughnessValue usdClearcoatRoughness Message:"Unexpected clearcoatRoughness value."
+
+    local usdIor = (shaderPrim.GetInput("ior")).Get()
+    assert_float_equal testTransIorValue usdIor Message:"Unexpected ior value."
+
+    local usdSpecularColor = (shaderPrim.GetInput("specularColor")).Get()
+    compareMaxAndUsdColors testSpecularColorValue usdSpecularColor "specularColor"
+
+    local usdNormalColor = (shaderPrim.GetInput("normal")).Get()
+    compareMaxAndUsdColors testNormalColorValue usdNormalColor "normalColor"
+
+    local usdOcclusion = (shaderPrim.GetInput("occlusion")).Get()
+    assert_float_equal testOcclusionValue usdOcclusion Message:"Unexpected occlusion value."
+
+    local usdOpacityThreshold = (shaderPrim.GetInput("opacityThreshold")).Get()
+    assert_float_equal testOpacityThresholdValue usdOpacityThreshold Message:"Unexpected opacityThreshold value."
+
+    local usdDisplacement = (shaderPrim.GetInput("displacement")).Get()
+    assert_float_equal testDisplacementValue usdDisplacement Message:"Unexpected displacement value."
+)
+
+function deleteTestFiles pattern = 
+(
+    for f in (getfiles (pattern)) do deleteFile f
+)
+
+function processPythonUnittestResults results =
+(
+    failures = results.failures
+    num_failures = failures.count
+
+    for i = 1 to num_failures do (
+        curr_failure = failures[i] 
+        curr_failure_message = curr_failure[2]
+        assert_true false message:curr_failure_message
+    )
+
+    errors = results.errors
+    num_errors = errors.count
+
+    for i = 1 to num_errors do (
+        curr_error = errors[i] 
+        curr_error_message = curr_error[2]
+        assert_true false message:curr_error_message
+    )
+)
+
+if assert_float_equal == undefined do (
+    function assert_float_equal a b message:"" = 
+    (
+        assert_equal (a as float) (b as float) message:message
+    )
+)
+
+-- assert_quat_equal does not exist in older max version.
+if assert_quat_equal == undefined do (
+    function assert_quat_equal a b =
+    (
+        normalize a
+        normalize b
+        local diff = a - b
+        assert_float_equal diff.x 0
+        assert_float_equal diff.y 0
+        assert_float_equal diff.z 0
+    )
+)
+
+function create_clone originalNode cloneType newNodeName = (
+    maxOps.cloneNodes #(originalNode) cloneType:cloneType actualNodeList:&list newNodes:&newNodes
+    if newNodes.count < 1 do (
+        return undefined
+    )         
+    newNodes[1].name = newNodeName
+    return newNodes[1]
+)
+
+function check_usd_file_valid usdFile = (
+    outputLog = (getDir #temp) + @"\3dsmax_usd_usdchecker_result.txt"
+    pyMaxUsd = python.import("maxUsd")
+    pyMaxUsd.RunUsdChecker usdFile outputLog
+    
+    local success = false
+    
+    -- Scan the output for "success"
+    fs = openFile outputLog
+    while not eof fs do (
+       lineStr = readline fs
+       if lineStr == "Success!" do (
+           success = true
+           exit           
+       )
+    )
+    close fs
+    deleteFile outputLog
+    return success
+)
\ No newline at end of file
diff --git a/src/Tests/Integration/import_animation_test.ms b/src/Tests/Integration/import_animation_test.ms
new file mode 100644
index 0000000..809a731
--- /dev/null
+++ b/src/Tests/Integration/import_animation_test.ms
@@ -0,0 +1,233 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdLux = python.import("pxr.UsdLux")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_ANIMATION_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_animation_test
+(
+    private 
+    importOptions = USDImporter.CreateOptions(),
+    initialUnits,
+    initialScale,
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+    ),
+
+    function setupStage path addPivot:false = (
+        local stage = pyUsd.Stage.CreateNew(path)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+
+        stage.SetStartTimeCode(0)
+        stage.SetEndTimeCode(10)
+
+        local fooPrim = pyUsdGeom.Sphere.Define stage "/foo"
+        local translateOp = fooPrim.AddTranslateOp()
+        local rotateOp = fooPrim.AddRotateXYZOp pyUsdGeom.XformOp.PrecisionDouble "foo" false
+        translateOp.Set (pyGf.Vec3f 0 0 1) -- Default timecode
+        translateOp.Set (pyGf.Vec3f 0 0 2) 0 -- time 0
+        translateOp.Set (pyGf.Vec3f 0 0 10) 10 -- time 10
+        rotateOp.Set(pyGf.Vec3f 0 0 0)
+        rotateOp.Set(pyGf.Vec3f 0 0 60) 10
+
+        local barPrim = pyUsdGeom.Sphere.Define stage "/foo/bar"
+        if addPivot then (
+            local barPivotOp = barPrim.AddTranslateOp pyUsdGeom.XformOp.PrecisionDouble "pivot" false
+            barPivotOp.Set(pyGf.Vec3f 10 0 0)
+            local invertBarPivotOp = barPrim.AddTranslateOp pyUsdGeom.XformOp.PrecisionDouble "pivot" true
+        )
+        local barTranslateOp = barPrim.AddTranslateOp()
+        barTranslateOp.Set (pyGf.Vec3f 0 0 0) -- Default timecode
+        barTranslateOp.Set (pyGf.Vec3f 20 0 0) 5 -- time 5
+        barTranslateOp.Set (pyGf.Vec3f 30 0 0) 10 -- time 10
+        local barRotateOp = barPrim.AddRotateXYZOp pyUsdGeom.XformOp.PrecisionDouble "bar" false
+        barRotateOp.Set(pyGf.Vec3f -60 0 0) 10
+
+        local lux = pyUsdLux.CylinderLight.Define stage "/foo/lux"
+
+        (stage.GetRootLayer()).Save()
+
+        return stage
+    ),
+
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function test_import_transforms = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "import_transforms.usda")
+        local stage = setupStage stagePath
+
+        local timeCodeErrorMsg = "Incorrect node transform on SliderTime = "
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo"
+        bar = getNodeByName "bar"
+        lux = getNodeByName "lux"
+        slidertime = 0
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 10.0 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 40.8934 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 7 -- upper half of the translated time (12.5)
+        assert_equal 6 foo.position.z message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 10.504 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 13 -- (10 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 15 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 40.8934 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -150 (in coordsys world quatToEuler2 lux.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+    ),
+
+    function test_import_up_axis = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "up_axis.usda")
+        local stage = setupStage stagePath
+
+        local timeCodeErrorMsg = "Incorrect node transform on SliderTime = "
+
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.y
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo"
+        bar = getNodeByName "bar"
+        lux = getNodeByName "lux"
+        slidertime = 0
+        assert_equal -2 foo.position.y message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 10.0 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -49.1066 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 7 -- upper half of the translated time (12.5)
+        assert_float_equal -6.48 foo.position.y message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 10.504 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 13 -- (10 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_equal -10 foo.position.y message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 15 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -49.1066 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -90 (in coordsys world quatToEuler2 lux.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal -150 (in coordsys world quatToEuler2 lux.rotation).z  message:(timeCodeErrorMsg + (slidertime as string))
+    ),
+
+    function test_import_pivot_change = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "pivot_change.usda")
+        local stage = setupStage stagePath addPivot:true
+
+        local timeCodeErrorMsg = "Incorrect node transform on SliderTime = "
+
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo"
+        bar = getNodeByName "bar"
+        slidertime = 0
+        assert_float_equal 15.0 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 40.8934 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 7 -- upper half of the translated time (12.5)
+        assert_float_equal 15.504 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        slidertime = 13 -- (10 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_float_equal 20 bar.position.x message:(timeCodeErrorMsg + (slidertime as string))
+        assert_float_equal 40.8934 (in coordsys world quatToEuler2 bar.rotation).x  message:(timeCodeErrorMsg + (slidertime as string))
+    ), 
+
+    function test_import_fps_difference = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "fps_difference.usda")
+        local stage = setupStage stagePath
+
+        frameRate = 24
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        local timeCodeErrorMsg = "(FPS 24) Incorrect node position for time code "
+
+        -- slider time and location should match stage's timecode (same fps)
+        foo = getNodeByName "foo"
+        slidertime = 0
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+        slidertime = 5 -- upper half of the translated time (12.5)
+        assert_equal 6 foo.position.z message:(timeCodeErrorMsg)
+        slidertime = 10 -- (10 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+
+        resetMaxFileAndSetupUnits()
+        -- max's slider should be half of the stage's data
+        frameRate = 12
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        timeCodeErrorMsg = "(FPS 12) Incorrect node position for time code "
+
+        foo = getNodeByName "foo"
+        slidertime = 0
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+        slidertime = 3
+        assert_equal 6 foo.position.z message:(timeCodeErrorMsg)
+        slidertime = 5
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+
+        resetMaxFileAndSetupUnits()
+        -- max's slider should be twice of the stage's data
+        frameRate = 48
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        timeCodeErrorMsg = "(FPS 48) Incorrect node position for time code "
+
+        foo = getNodeByName "foo"
+        slidertime = 0
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+        slidertime = 10
+        assert_equal 6 foo.position.z message:(timeCodeErrorMsg)
+        slidertime = 20
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 foo.rotation).z  message:(timeCodeErrorMsg)
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_import_transforms,
+        test_import_up_axis,
+        test_import_pivot_change,
+        test_import_fps_difference
+    )
+)
+
+runUsdTestFixture import_animation_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_chaser_test.ms b/src/Tests/Integration/import_chaser_test.ms
new file mode 100644
index 0000000..ab623aa
--- /dev/null
+++ b/src/Tests/Integration/import_chaser_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct import_chaser_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_import_chaser_cases = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import import_chaser_test"
+        python.Execute "reload(import_chaser_test)"
+        -- Run tests.
+        python_test = python.import("import_chaser_test")
+        results = python_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_import_chaser_cases
+    )
+)
+
+runUsdTestFixture import_chaser_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_chaser_test.py b/src/Tests/Integration/import_chaser_test.py
new file mode 100644
index 0000000..df8f1bb
--- /dev/null
+++ b/src/Tests/Integration/import_chaser_test.py
@@ -0,0 +1,146 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+
+from pxr import Usd
+import usd_test_helpers
+
+from pymxs import runtime as mxs
+
+import os, sys, glob
+import unittest
+
+class importChaserFirstTest(maxUsd.ImportChaser):
+    PostImportCalled = False
+    stage = None
+    ChaserNames = set()
+    ChaserArgs = {}
+    context = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(importChaserFirstTest, self).__init__(factoryContext, *args, **kwargs)
+        importChaserFirstTest.context = factoryContext.GetContext()
+        importChaserFirstTest.stage = factoryContext.GetStage()
+        importChaserFirstTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        importChaserFirstTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['first']
+        importChaserFirstTest.filename = factoryContext.GetFilename()
+
+    def PostImport(self):
+        importChaserFirstTest.PostImportCalled = True
+        return True
+
+class importChaserSecondTest(maxUsd.ImportChaser):
+    PostImportCalled = False
+    stage = None
+    ChaserNames = set()
+    ChaserArgs = {}
+    context = {}
+    filename = ""
+
+    def __init__(self, factoryContext, *args, **kwargs):
+        super(importChaserSecondTest, self).__init__(factoryContext, *args, **kwargs)
+        importChaserSecondTest.context = factoryContext.GetContext()
+        importChaserSecondTest.stage = factoryContext.GetStage()
+        importChaserSecondTest.ChaserNames = factoryContext.GetJobArgs().GetChaserNames()
+        importChaserSecondTest.ChaserArgs = factoryContext.GetJobArgs().GetAllChaserArgs()['second']
+        importChaserSecondTest.filename = factoryContext.GetFilename()
+
+    def PostImport(self):
+        importChaserSecondTest.PostImportCalled = True
+        return True
+
+class testImportChaser(unittest.TestCase):
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("TEST_IMPORT_CHASER_")
+        
+        mxs.resetMaxFile(mxs.Name('NOPROMPT'))
+        usd_test_helpers.load_usd_plugins()
+
+    def testSimpleImportChaser(self):
+        import_file_path = os.path.dirname(__file__) + "\\data\\box_sample.usda"
+        maxUsd.ImportChaser.Register(importChaserFirstTest, "first", "Chaser First Test", "This is the first chaser test description")
+        maxUsd.ImportChaser.Register(importChaserSecondTest, "second")
+
+        # Import usd file with args from a dictionary
+        import_options = mxs.USDImporter.CreateOptions()
+        import_options.ChaserNames = mxs.Array("first")
+        import_options.AllChaserArgs = mxs.Dictionary(mxs.Name('string'), mxs.Array('first', (mxs.Dictionary(mxs.Name('string'), mxs.Array("bar", "ometer"), mxs.Array("foo", "tball")))))
+        ret = mxs.USDImporter.ImportFile(import_file_path, importOptions=import_options)
+
+        self.assertTrue(ret)
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertFalse(importChaserSecondTest.PostImportCalled)
+        self.assertIsNotNone(importChaserFirstTest.stage)
+        self.assertIsNone(importChaserSecondTest.stage)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('first' in importChaserFirstTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(importChaserFirstTest.filename, import_file_path)
+        self.assertEqual(importChaserSecondTest.filename, "")
+
+        # Import using the first chaser with array args
+        importChaserFirstTest.PostImportCalled = False
+        importChaserFirstTest.stage = None
+        importChaserFirstTest.filename = ""
+        import_options.AllChaserArgs = mxs.Array("first", "bar", "baric", "first", "foo", "tlocker")
+        ret = mxs.USDImporter.ImportFile(import_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertFalse(importChaserSecondTest.PostImportCalled)
+        self.assertIsNotNone(importChaserFirstTest.stage)
+        self.assertIsNone(importChaserSecondTest.stage)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 1)
+        self.assertTrue('first' in importChaserFirstTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertEqual(importChaserFirstTest.filename, import_file_path)
+        self.assertEqual(importChaserSecondTest.filename, "")
+
+        #Import using both chasers with their own args
+        importChaserFirstTest.PostImportCalled = False
+        importChaserFirstTest.stage = None
+        importChaserFirstTest.filename = ""
+        import_options.AllChaserArgs = mxs.Array("first", "bar", "baric", "second", "bar", "ometer", "first", "foo", "tlocker", "second", "foo", "tball")
+        import_options.ChaserNames = mxs.Array("first", "second")
+        ret = mxs.USDImporter.ImportFile(import_file_path, importOptions=import_options)
+
+        self.assertTrue(ret)
+        self.assertTrue(importChaserFirstTest.PostImportCalled)
+        self.assertTrue(importChaserSecondTest.PostImportCalled)
+        self.assertIsNotNone(importChaserFirstTest.stage)
+        self.assertIsNotNone(importChaserSecondTest.stage)
+        self.assertEqual(len(importChaserFirstTest.ChaserNames), 2)
+        self.assertEqual(len(importChaserSecondTest.ChaserNames), 2)
+        self.assertTrue('first' in importChaserFirstTest.ChaserNames)
+        self.assertTrue('second' in importChaserSecondTest.ChaserNames)
+        self.assertEqual(importChaserFirstTest.ChaserArgs,{'bar': 'baric', 'foo': 'tlocker'})
+        self.assertEqual(importChaserSecondTest.ChaserArgs,{'bar': 'ometer', 'foo': 'tball'})
+        self.assertEqual(importChaserFirstTest.filename, import_file_path)
+        self.assertEqual(importChaserSecondTest.filename, import_file_path)
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(
+        unittest.TestLoader().loadTestsFromTestCase(testImportChaser)
+    )
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/import_curves_test.ms b/src/Tests/Integration/import_curves_test.ms
new file mode 100644
index 0000000..2ba82c7
--- /dev/null
+++ b/src/Tests/Integration/import_curves_test.ms
@@ -0,0 +1,62 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct import_curves_test
+(
+    private
+    test_python_path,
+
+    public
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+
+    function test_usd_curves_import =
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import import_curves_test"
+        python.Execute "reload(import_curves_test)"
+        import_curves_test = python.import("import_curves_test")
+        results = import_curves_test.run_tests()
+
+        processPythonUnittestResults results
+    ),
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+
+    Tests = #(
+        test_usd_curves_import
+    )
+)
+
+runUsdTestFixture import_curves_test (getThisScriptFilename())
diff --git a/src/Tests/Integration/import_curves_test.py b/src/Tests/Integration/import_curves_test.py
new file mode 100644
index 0000000..1656fd1
--- /dev/null
+++ b/src/Tests/Integration/import_curves_test.py
@@ -0,0 +1,475 @@
+#
+# Copyright 2024 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+import os
+import shutil
+
+from importlib import reload
+from enum import Enum
+
+from pxr import Usd, UsdGeom, UsdUtils
+
+import usd_test_helpers
+import shaderReader
+import pymxs
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2024, Autodesk Inc.'
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDImporter)
+
+TEST_DIR = os.path.dirname(__file__)
+TEST_DATA_DIR = os.path.join(TEST_DIR, "data")
+
+
+class TestImportCurves(unittest.TestCase):
+    def setUp(self):
+        RT.resetMaxFile(RT.Name("noprompt"))
+
+        self.initialUnits = RT.units.SystemType
+        self.initialScale = RT.units.SystemScale
+        RT.units.SystemType = RT.Name("Centimeters")
+        RT.units.SystemScale = 1
+
+        self.output_prefix = usd_test_helpers.standard_output_prefix("IMPORT_CURVES_PYMXS_TEST_")
+        usd_test_helpers.load_usd_plugins()
+
+        self.stage = Usd.Stage.CreateInMemory()
+        UsdGeom.SetStageUpAxis(self.stage, UsdGeom.Tokens.z)
+
+        self.import_options = RT.USDImporter.CreateOptions()
+        self.import_options.LogLevel = RT.Name("warn")
+
+    def tearDown(self):
+        RT.units.SystemType = self.initialUnits
+        RT.units.SystemScale = self.initialScale
+
+    def import_usd_basis_curve_test(self,
+                                    test_usd_file_name,
+                                    expected_num_knots,
+                                    expected_knot_values_list,
+                                    expected_knot_in_vecs_list,
+                                    expected_knot_out_vecs_list,
+                                    expected_is_closed,
+                                    num_objects,
+                                    expected_warnings = 0):
+        # Setup logging.
+        self.import_options.LogPath = "{0}{1}{2}".format(self.output_prefix, test_usd_file_name, ".log")
+        if os.path.exists(self.import_options.LogPath):
+            os.remove(self.import_options.LogPath)
+
+        stageCache = UsdUtils.StageCache.Get()
+        stageCache.Insert(self.stage)
+        stageId = (stageCache.GetId(self.stage)).ToLongInt()
+
+        RT.USDImporter.ImportFromCache(stageId, importOptions=self.import_options)
+        
+        # check logged warnings
+        log_file_handle = open(self.import_options.LogPath)
+        self.assertEqual(expected_warnings, len(log_file_handle.readlines()))
+        log_file_handle.close()
+
+        self.assertEqual(len(RT.objects), num_objects)
+        if num_objects == 0:
+            return
+
+        max_curve = RT.objects[0]
+
+        self.assertEqual(RT.ClassOf(max_curve), RT.SplineShape)
+
+        num_knots = RT.numKnots(max_curve)
+        self.assertEqual(num_knots, expected_num_knots)
+
+        for idx, expected_knot_values  in enumerate(expected_knot_values_list):
+            for jdx, expected_knot_value in enumerate(expected_knot_values):
+                knot_val = RT.getKnotPoint(max_curve, idx+1, jdx+1)
+                self.assertEqual(knot_val[0], expected_knot_value[0])
+                self.assertEqual(knot_val[1], expected_knot_value[1])
+                self.assertEqual(knot_val[2], expected_knot_value[2])
+
+        for idx, expected_knot_in_vecs in enumerate(expected_knot_in_vecs_list):
+            for jdx, expected_knot_in_vec in enumerate(expected_knot_in_vecs):
+                knot_in_vec = RT.getInVec(max_curve, idx+1, jdx+1)
+                self.assertEqual(knot_in_vec[0], expected_knot_in_vec[0])
+                self.assertEqual(knot_in_vec[1], expected_knot_in_vec[1])
+                self.assertEqual(knot_in_vec[2], expected_knot_in_vec[2])
+
+        for idx, expected_knot_out_vecs in enumerate(expected_knot_out_vecs_list):
+            for jdx, expected_knot_out_vec in enumerate(expected_knot_out_vecs):
+                knot_out_vec = RT.getOutVec(max_curve, idx+1, jdx+1)
+                self.assertEqual(knot_out_vec[0], expected_knot_out_vec[0])
+                self.assertEqual(knot_out_vec[1], expected_knot_out_vec[1])
+                self.assertEqual(knot_out_vec[2], expected_knot_out_vec[2])
+
+        is_closed = RT.isClosed(max_curve, 1)
+        self.assertEqual(is_closed, expected_is_closed)
+
+    ########### linear ##############
+    def test_usd_basis_curve_linear_non_periodic(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0)]
+        curvesType = "linear"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_linear_non_periodic"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 4, [curvesPoints], [curvesPoints], [curvesPoints], False, 1, 0)
+
+    def test_usd_basis_curve_linear_periodic(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0)]
+        curvesType = "linear"
+        curvesWrap = "periodic"
+        curveVertexCount = [4]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_linear_periodic"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 4, [curvesPoints], [curvesPoints], [curvesPoints], True, 1, 0)
+
+    def test_usd_basis_curve_linear_non_periodic_multiple(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3), (15,15,15)]
+        curvesType = "linear"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4, 6]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_linear_non_periodic_multiple"
+
+        expected_points = [[(0,0,0), (1,1,1), (2,1,1), (3,0,0)], [(2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3), (15,15,15)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 10, expected_points, expected_points, expected_points, False, 1, 0)
+
+    def test_usd_basis_curve_linear_periodic_multiple(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3), (15,15,15)]
+        curvesType = "linear"
+        curvesWrap = "periodic"
+        curveVertexCount = [4, 6]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_linear_periodic_multiple"
+
+        expected_points = [[(0,0,0), (1,1,1), (2,1,1), (3,0,0)], [(2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3), (15,15,15)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 10, expected_points, expected_points, expected_points, True, 1, 0)
+
+    def test_usd_basis_curve_linear_insufficient_points(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0)]
+        curvesType = "linear"
+
+        curveVertexCount = [1]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_linear_insufficient_points"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+    ########### cubic ##############
+    def test_usd_basis_curve_cubic_bezier_nonperiodic_valid(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [7]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_bezier_nonperiodic_valid"
+
+        expected_points = [[(0,0,0), (3,2,2), (6,3,3)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2), (6,3,3)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 3, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 0)
+
+
+    def test_usd_basis_curve_cubic_bezier_nonperiodic_invalid(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3), (15,15,15)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [8] # invalid amount of verts -- needs to validate ((count - 4) % 3 == 0)
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_bezier_nonperiodic_invalid"
+
+        expected_points = [[(0,0,0), (3,2,2), (6,3,3)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2), (15,15,15)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 3, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 1)
+
+    def test_usd_basis_curve_cubic_nonbezier(self):
+        # this function is to test that non-bezier type functions get converted in the same way as bezier
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3)]
+        curvesType = "cubic"
+        curvesBasis = "bspline"
+        curveVertexCount = [7]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_nonbezier"
+
+        expected_points = [[(0,0,0), (3,2,2), (6,3,3)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2), (6,3,3)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 3, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 0)
+
+    def test_usd_basis_curve_cubic_bezier_periodic_valid(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (15,3,3)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "periodic"
+        curveVertexCount = [6]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_bezier_periodic_valid"
+
+        expected_points = [[(0,0,0), (3,2,2)]]
+        expected_in_vecs = [[(15,3,3), (2,1,1)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 2, expected_points, expected_in_vecs, expected_out_vecs, True, 1, 0)
+
+    def test_usd_basis_curve_cubic_bezier_periodic_invalid_period_valid_last_point(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (10,10,10)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "periodic"
+        curveVertexCount = [7] # invalid amount of verts -- needs to validate ((count % 3) == 0). however, passes ((count - 4) % 3 == 0), so last point is drawn
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_bezier_periodic_invalid_period_valid_last_point"
+
+        expected_points = [[(0,0,0), (3,2,2), (10,10,10)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2), (10,10,10)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 3, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 1)
+
+    def test_usd_basis_curve_cubic_bezier_periodic_invalid_period_invalid_last_point(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (10,10,10), (15,15,15)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "periodic"
+        curveVertexCount = [8] # invalid amount of verts -- needs to validate ((count % 3) == 0)
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_bezier_periodic_invalid_period_invalid_last_point"
+
+        expected_points = [[(0,0,0), (3,2,2), (10,10,10)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2), (15,15,15)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 3, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 1)
+
+    def test_usd_basis_curve_cubic_non_periodic_multiple(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0), (0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (6,3,3)]
+        curvesType = "cubic"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4, 7]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_non_periodic_multiple"
+
+        expected_points = [[(0,0,0), (3,0,0)], [(0,0,0), (3,2,2), (6,3,3)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1)], [(0,0,0), (2,1,1), (5,3,3)]]
+        expected_out_vecs = [[(1,1,1), (3,0,0)], [(1,1,1), (4,2,2), (6,3,3)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 5, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 0)
+
+    def test_usd_basis_curve_cubic_periodic_multiple(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3)]
+        curvesType = "cubic"
+        curvesWrap = "periodic"
+        curveVertexCount = [6, 6]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_periodic_multiple"
+
+        expected_points = [[(0,0,0), (3,2,2)], [(0,0,0), (3,2,2)]]
+        expected_in_vecs = [[(5,3,3), (2,1,1)], [(5,3,3), (2,1,1)]]
+        expected_out_vecs = [[(1,1,1), (4,2,2)], [(1,1,1), (4,2,2)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 4, expected_points, expected_in_vecs, expected_out_vecs, True, 1, 0)
+
+    def test_usd_basis_curve_cubic_nonperiodic_min_size(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,0,0)]
+        curvesType = "cubic"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_periodic_min_size"
+
+        expected_points = [[(0,0,0), (3,0,0)]]
+        expected_in_vecs = [[(0,0,0), (2,1,1)]]
+        expected_out_vecs = [[(1,1,1), (3,0,0)]]
+        self.import_usd_basis_curve_test(test_usd_file_name, 2, expected_points, expected_in_vecs, expected_out_vecs, False, 1, 0)
+        
+    def test_usd_basis_curve_cubic_periodic_min_size(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1)]
+        curvesType = "cubic"
+        curvesWrap = "periodic"
+        curveVertexCount = [3]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_periodic_min_size"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+    def test_usd_basis_curve_cubic_insufficient_points(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0)]
+        curvesType = "cubic"
+
+        curveVertexCount = [1]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_cubic_insufficient_points"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+    ############## MISC ##############
+    def test_usd_basis_curve_missing_count(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (10,10,10), (15,15,15)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "periodic"
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+
+        test_usd_file_name = "test_usd_basis_curve_missing_count"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+    def test_usd_basis_curve_missing_points(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4]
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_missing_points"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+    def test_usd_basis_curve_mismatch_points_and_count(self):
+        some_curve = UsdGeom.BasisCurves.Define(self.stage, '/Curve')
+
+        curvesPoints =  [(0,0,0), (1,1,1), (2,1,1), (3,2,2), (4,2,2), (5,3,3), (10,10,10), (15,15,15)]
+        curvesType = "cubic"
+        curvesBasis = "bezier"
+        curvesWrap = "nonperiodic"
+        curveVertexCount = [4]
+        some_curve.CreatePointsAttr(curvesPoints)
+        some_curve.CreateTypeAttr(curvesType)
+        some_curve.CreateWrapAttr(curvesWrap)
+        some_curve.CreateBasisAttr(curvesBasis)
+        some_curve.CreateCurveVertexCountsAttr(curveVertexCount)
+
+        test_usd_file_name = "test_usd_basis_curve_mismatch_points_and_count"
+
+        self.import_usd_basis_curve_test(test_usd_file_name, 0, None, None, None, False, 0, 1)
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestImportCurves))
+
+if __name__ == "__main__":
+    RT.clearListener()
+    run_tests()
diff --git a/src/Tests/Integration/import_export_non_renderable_test.ms b/src/Tests/Integration/import_export_non_renderable_test.ms
new file mode 100644
index 0000000..b0a974d
--- /dev/null
+++ b/src/Tests/Integration/import_export_non_renderable_test.ms
@@ -0,0 +1,89 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyShade = python.import("pxr.UsdShade")
+pysdf = python.import("pxr.Sdf")
+
+struct import_export_non_renderable_test
+(  
+    private 
+    output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_EXPORT_NON_RENDERABLE_TESTS_",
+    input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_EXPORT_NON_RENDERABLE_TESTS_",
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        deleteTestFiles(output_prefix + "*.*")
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.UsdStagesAsReferences = false
+    ),
+
+    -- Test that non-renderable mesh exports as guide purpose
+    function export_non_renderable_mesh = (
+        -- given
+        myBox = Box name:"Box001"
+        myBox.renderable = false
+
+        -- when
+        local exportPath = output_prefix + "export_non_renderable_mesh.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions 	
+
+        -- then
+        local stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/Box001/Box001_Shape")
+        local mesh = pyUsdGeom.Mesh(boxPrim)
+        assert_equal "guide" ((mesh.GetPurposeAttr()).Get())  
+    ),
+	
+    --Test that mesh set to guide in USD is set to non-renderable when imported to Max
+    function import_geometry_with_guide_purpose = (
+        -- given
+        local importOptions = USDImporter.CreateOptions()
+        local filepath = input_prefix + "test_import_geometry_with_guide_purpose.usd"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Box001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        purposeAttr.Set(pyUsdGeom.Tokens.guide)
+        (stage.GetRootLayer()).Save()
+
+        -- when
+        USDImporter.ImportFile filepath importOptions:importOptions
+
+        -- then
+        assert_equal false $Box001.renderable
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(export_non_renderable_mesh,
+        import_geometry_with_guide_purpose
+    )
+)
+
+runUsdTestFixture import_export_non_renderable_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_from_cache_test.ms b/src/Tests/Integration/import_from_cache_test.ms
new file mode 100644
index 0000000..715194e
--- /dev/null
+++ b/src/Tests/Integration/import_from_cache_test.ms
@@ -0,0 +1,111 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyShade = python.import("pxr.UsdShade")
+pyVt = python.import("pxr.Vt")
+
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+struct import_from_cache_test
+(
+    initialUnits,
+    initialScale,
+    
+    public
+    
+    function resetFileAndUnits = (
+        resetMaxFile #noprompt
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+    ),    
+    
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetFileAndUnits()
+    ),
+    
+    function test_import_from_cache = (
+        -- Create a stage in memory.
+        local stage = pyUsd.Stage.CreateInMemory()
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        local pyramidPrim = pyUsdGeom.Mesh.Define stage "/pyramid"
+        local points = #((pyGf.Vec3f -10 0 -10), (pyGf.Vec3f 10 0 -10), (pyGf.Vec3f -10 0 10), (pyGf.Vec3f 10 0 10), (pyGf.Vec3f 0 20 0))
+        local vertexCount = #(3,3,3,3,4)
+        local vertexIndices = #(0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2)
+        pyramidPrim.CreatePointsAttr(points)
+        pyramidPrim.CreateFaceVertexCountsAttr(vertexCount)
+        pyramidPrim.CreateFaceVertexIndicesAttr(vertexIndices)
+        
+        -- Specify different transforms at TimeCodes 1 and 2. We will use this later to make sure 
+        -- that importing from cache with explicit options works.
+        local translateOp = pyramidPrim.AddTranslateOp()
+        translateOp.Set (pyGf.Vec3f 0 0 1) 0
+        translateOp.Set (pyGf.Vec3f 0 0 2) 5
+        
+        -- Add the stage to the cache.
+        local stageCache = pyUsdUtils.StageCache.Get()
+        stageCache.Insert(stage)
+        
+        -- Figure out the stage's ID in the cache. This is what we need to import into max.
+        local stageId = (stageCache.GetId(stage)).ToLongInt()
+        
+        -- Using default options.
+        USDImporter.ImportFromCache stageId
+        
+        -- Make sure the pyramind was imported with default options.
+        local pyramidNode = $pyramid
+        assert_defined pyramidNode
+        -- With default should have imported at timeCode #startTime (1)
+        assert_equal 1 pyramidNode.position.z message:"Unexpected node position when importing from cache with default options."
+    
+        resetFileAndUnits()
+            
+        -- Now specifying the options...
+        local importOptions = USDImporter.CreateOptions()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = 5
+        
+        USDImporter.ImportFromCache stageId importOptions:importOptions
+        pyramidNode = $pyramid
+        assert_defined pyramidNode
+        -- Should now have imported at timeCode 2
+        assert_equal 2 pyramidNode.position.z message:"Unexpected node position when importing from cache with specfied options."
+        
+        resetFileAndUnits()
+        -- Test setting an end time code to be less than the start time code still works
+        importOptions.EndTimeCode = -1
+        assert_float_equal importOptions.startTimeCode importOptions.EndTimeCode message:"EndTimeCode should've been set to be the same as StartTimeCode"
+    ),
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_import_from_cache)
+)
+
+runUsdTestFixture import_from_cache_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_instance_test.ms b/src/Tests/Integration/import_instance_test.ms
new file mode 100644
index 0000000..6df042b
--- /dev/null
+++ b/src/Tests/Integration/import_instance_test.ms
@@ -0,0 +1,518 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+pySdf = python.import("pxr.Sdf")
+pyShade = python.import("pxr.UsdShade")
+
+input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_INSTANCE_TEST_"
+deleteTestFiles(input_prefix + "*.*")
+
+struct import_instance_test
+(
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function import_ref_instance_test = (
+        local filepath = input_prefix + "import_instance_test.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        
+        -- Create cube ref file
+        local refPrim = stage.DefinePrim "/referencePrim"
+        local cubePrim = pyUsdGeom.Mesh.Define stage "/referencePrim/CubePrim"
+        local points = #((pyGf.Vec3f -2.5 -2.5 0), (pyGf.Vec3f 2.5 -2.5 0), (pyGf.Vec3f -2.5 2.5 0), (pyGf.Vec3f 2.5 2.5 0), (pyGf.Vec3f -2.5 -2.5 5), (pyGf.Vec3f 2.5 -2.5 5), (pyGf.Vec3f -2.5 2.5 5), (pyGf.Vec3f 2.5 2.5 5))
+        local vertexCount = #(4, 4, 4, 4, 4, 4)
+        local vertexIndices = #(0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6)
+        cubePrim.CreatePointsAttr(points)
+        cubePrim.CreateFaceVertexCountsAttr(vertexCount)
+        cubePrim.CreateFaceVertexIndicesAttr(vertexIndices)
+
+        -- Reference cube file in prims
+        local instance1 = pyUsdGeom.Xform.Define stage "/CubePrimInstance1"
+        local instance2 = pyUsdGeom.Xform.Define stage "/CubePrimInstance2"
+        local instance3 = pyUsdGeom.Xform.Define stage "/CubePrimInstance3"
+        local instance3CubeOverwrite = stage.OverridePrim "/CubePrimInstance3/CubePrim"
+        local meshoverride = pyUsdGeom.Gprim(instance3CubeOverwrite)
+
+        ((instance1.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance2.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance3.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+
+            
+        (instance1.GetPrim()).SetInstanceable(true)
+        (instance2.GetPrim()).SetInstanceable(true)
+            
+        meshoverride.CreateDisplayColorAttr (pyVt.Vec3fArray (pyGf.Vec3f 1 0 0))
+        (stage.GetRootLayer()).Save()
+    
+        importFile filepath #noPrompt
+            
+        local cubeNode1 = $CubePrimInstance1/CubePrim
+        local cubeNode2 = $CubePrimInstance2/CubePrim
+        local cubeNode3 = $CubePrimInstance3/CubePrim
+        
+        local numberOfInstanceNode1 = instanceMgr.GetInstances cubeNode1 &listOfNode
+        local numberOfInstanceNode2 = instanceMgr.GetInstances cubeNode2 &listOfNode
+        local numberOfInstanceNode3 = instanceMgr.GetInstances cubeNode3 &listOfNode
+        assert_equal 2 numberOfInstanceNode1 message:"Node 1 should be an instance of Node 2"
+        assert_equal 2 numberOfInstanceNode2 message:"Node 1 should be an instance of Node 2"
+        assert_equal 1 numberOfInstanceNode3 message:"Node 3 should not be an instance of any node"
+    ),
+    
+    function test_import_invisible_instance = (
+        local filepath = input_prefix + "import_invisible_instance_test.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+
+        -- Create cube ref file
+        local refPrim = stage.DefinePrim "/referencePrim"
+        local childPrim = pyUsdGeom.Mesh.Define stage "/referencePrim/childPrim"
+
+        -- Reference cube file in prims
+        local instance1 = pyUsdGeom.Xform.Define stage "/PrimInstance1"
+        local instance2 = pyUsdGeom.Xform.Define stage "/PrimInstance2"
+        local instance1ImageablePrim = pyUsdGeom.Imageable(instance1)
+        local visibilityAttr = instance1ImageablePrim.CreateVisibilityAttr()
+        visibilityAttr.Set(pyUsdGeom.Tokens.invisible)
+
+        ((instance1.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance2.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+
+        (instance1.GetPrim()).SetInstanceable(true)
+        (instance2.GetPrim()).SetInstanceable(true)
+
+        (stage.GetRootLayer()).Save()
+
+        importFile filepath #noPrompt
+        local listOfNode = #()
+
+        local node1 = $PrimInstance1/childPrim
+        local node2 = $PrimInstance2/childPrim
+
+        assert_true node1.isHidden message:"Node 1 should be hidden"
+        assert_false node2.isHidden message:"Node 2 should not be hidden"
+    ),
+    
+    function test_import_positioned_instances = (
+        local filepath = input_prefix + "import_positioned_instances_test.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        pyUsdGeom.SetStageMetersPerUnit stage pyUsdGeom.LinearUnits.inches
+        
+        -- Create cube ref file
+        local refPrim = stage.CreateClassPrim "/referencePrim"
+        local cubePrim = pyUsdGeom.Mesh.Define stage "/referencePrim/CubePrim"
+        local points = #((pyGf.Vec3f -2.5 -2.5 0), (pyGf.Vec3f 2.5 -2.5 0), (pyGf.Vec3f -2.5 2.5 0), (pyGf.Vec3f 2.5 2.5 0), (pyGf.Vec3f -2.5 -2.5 5), (pyGf.Vec3f 2.5 -2.5 5), (pyGf.Vec3f -2.5 2.5 5), (pyGf.Vec3f 2.5 2.5 5))
+        local vertexCount = #(4, 4, 4, 4, 4, 4)
+        local vertexIndices = #(0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6)
+        cubePrim.CreatePointsAttr(points)
+        cubePrim.CreateFaceVertexCountsAttr(vertexCount)
+        cubePrim.CreateFaceVertexIndicesAttr(vertexIndices)
+        
+        -- Reference cube file in prims
+        local instance1 = pyUsdGeom.Xform.Define stage "/CubePrimInstance1"
+        local instance1TranslateOp = instance1.AddTranslateOp()
+        instance1TranslateOp.Set (pyGf.Vec3f 10. 5. 0.)
+        local instance1RotateXYZOp = instance1.AddRotateXYZOp()
+        instance1RotateXYZOp.Set (pyGf.Vec3f 0. 50. 0.)
+        local instance2 = pyUsdGeom.Xform.Define stage "/CubePrimInstance2"
+        local instance2TranslateOp = instance2.AddTranslateOp()
+        instance2TranslateOp.Set (pyGf.Vec3f -10. 5. 0.)
+        local instance2RotateXYZOp = instance2.AddRotateXYZOp()
+        instance2RotateXYZOp.Set (pyGf.Vec3f 0. 0. 0.)
+        local instance3 = pyUsdGeom.Xform.Define stage "/CubePrimInstance3"
+        local instance3TranslateOp = instance3.AddTranslateOp()
+        instance3TranslateOp.Set (pyGf.Vec3f 10. -5. 0.)
+        local instance3RotateXYZOp = instance3.AddRotateXYZOp()
+        instance3RotateXYZOp.Set (pyGf.Vec3f 0. 20. 0.)
+        local instance3CubeOverwrite = stage.OverridePrim "/CubePrimInstance3/CubePrim"
+        local meshoverride = pyUsdGeom.Gprim(instance3CubeOverwrite)
+
+        ((instance1.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance2.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance3.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+            
+        (instance1.GetPrim()).SetInstanceable(true)
+        (instance2.GetPrim()).SetInstanceable(true)
+            
+        meshoverride.CreateDisplayColorAttr (pyVt.Vec3fArray (pyGf.Vec3f 1 0 0))
+        (stage.GetRootLayer()).Save()
+    
+        importFile filepath #noPrompt
+        
+        -- the prototype itself is not kept at the end of the import process
+        -- the instances and their point helper (xform) should be imported
+        assert_equal 6 objects.count message:"The number of elements in the imported stage should be 6."
+
+        -- all instances are properly positioned
+        local cubeNode1Helper = $CubePrimInstance1
+        assert_equal ([10,5,0]) cubeNode1Helper.pos
+        assert_equal ((EulerAngles 0 -50 0) as quat) cubeNode1Helper.rotation
+        local cubeNode1 = $CubePrimInstance1/CubePrim
+        assert_equal ([10,5,0]) cubeNode1.pos
+        assert_equal ((EulerAngles 0 -50 0) as quat) cubeNode1.rotation
+        local cubeNode2Helper = $CubePrimInstance2
+        assert_equal ([-10,5,0]) cubeNode2Helper.pos
+        assert_equal ((EulerAngles 0 0 0) as quat) cubeNode2Helper.rotation
+        local cubeNode2 = $CubePrimInstance2/CubePrim
+        assert_equal ([-10,5,0]) cubeNode2.pos
+        assert_equal ((EulerAngles 0 0 0) as quat) cubeNode2.rotation
+        local cubeNode3Helper = $CubePrimInstance3
+        assert_equal ([10,-5,0]) cubeNode3Helper.pos
+        assert_equal ((EulerAngles 0 -20 0) as quat) cubeNode3Helper.rotation
+        local cubeNode3 = $CubePrimInstance3/CubePrim
+        assert_equal ([10,-5,0]) cubeNode3.pos
+        assert_equal ((EulerAngles 0 -20 0) as quat) cubeNode3.rotation
+    ),
+
+    -- test the positioning of instances in Y up axis stage
+    -- the test is also constructed for the stage to have multiple level of prototype references
+    -- to add multiple level of transformation to apply on the resulting node
+    --  - a first cube is created (centered with no transformation)
+    --  - a set of cubes are referenced and, are positioned and oriented to form a pattern formed of 4 instanced cubes
+    --  - the final stage uses the pattern to create a figure by positioning and orienting 4 instances of the pattern
+    -- the number of instances is not relevant to the test but it was done just for dev artistic reasons
+    -- we are interested by the final position and orientation of a cube in the last stage
+    -- to validate the total transform which is the result from the combined multiple xforms
+    function test_import_positioned_instances_multi_level = (
+        
+        -- Create cube ref file
+        local filepathCubeRef = input_prefix + "import_positioned_instances_multi_levelA_test.usda"
+        local cubeStage = pyUsd.Stage.CreateNew(filepathCubeRef)
+        local defaultPrim = pyUsdGeom.Xform.Define cubeStage "/Asset"
+        local cubePrim = pyUsdGeom.Mesh.Define cubeStage "/Asset/CubePrim"
+        local points = #((pyGf.Vec3f -2.5 -2.5 -2.5), (pyGf.Vec3f 2.5 -2.5 -2.5), (pyGf.Vec3f -2.5 2.5 -2.5), (pyGf.Vec3f 2.5 2.5 -2.5), (pyGf.Vec3f -2.5 -2.5 2.5), (pyGf.Vec3f 2.5 -2.5 2.5), (pyGf.Vec3f -2.5 2.5 2.5), (pyGf.Vec3f 2.5 2.5 2.5))
+        local vertexCount = #(4, 4, 4, 4, 4, 4)
+        local vertexIndices = #(0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6)
+        cubePrim.CreatePointsAttr(points)
+        cubePrim.CreateFaceVertexCountsAttr(vertexCount)
+        cubePrim.CreateFaceVertexIndicesAttr(vertexIndices)
+        cubePrim.CreateDisplayColorAttr (pyVt.Vec3fArray (pyGf.Vec3f 1 0 0))
+        cubeStage.SetDefaultPrim (defaultPrim.GetPrim())
+        (cubeStage.GetRootLayer()).Save()
+            
+        local filepathFirstInference = input_prefix + "import_positioned_instances_multi_levelB_test.usda"
+        local firstInferenceStage = pyUsd.Stage.CreateNew(filepathFirstInference)
+        local cubesXform = pyUsdGeom.Xform.Define firstInferenceStage "/Cubes"
+        firstInferenceStage.SetDefaultPrim (cubesXform.GetPrim())
+            
+        local instance1 = pyUsdGeom.Xform.Define firstInferenceStage "/Cubes/Cube1"
+        ((instance1.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelA_test.usda")
+        local instance1RotateXYZOp = instance1.AddRotateXYZOp()
+        instance1RotateXYZOp.Set (pyGf.Vec3f 0. 45. 0.)
+        (instance1.GetPrim()).SetInstanceable(true)
+
+        local instance2 = pyUsdGeom.Xform.Define firstInferenceStage "/Cubes/Cube2"
+        ((instance2.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelA_test.usda")
+        local instance2TranslateOp = instance2.AddTranslateOp()
+        instance2TranslateOp.Set (pyGf.Vec3f 0. 0. -10)
+        local instance2RotateXYZOp = instance2.AddRotateXYZOp()
+        instance2RotateXYZOp.Set (pyGf.Vec3f 0. 45. 0.)
+        (instance2.GetPrim()).SetInstanceable(true)
+
+        local instance3 = pyUsdGeom.Xform.Define firstInferenceStage "/Cubes/Cube3"
+        ((instance3.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelA_test.usda")
+        local instance3TranslateOp = instance3.AddTranslateOp()
+        instance3TranslateOp.Set (pyGf.Vec3f 0. 10. 0.)
+        local instance3RotateXYZOp = instance3.AddRotateXYZOp()
+        instance3RotateXYZOp.Set (pyGf.Vec3f 0. 45. 0.)
+        (instance3.GetPrim()).SetInstanceable(true)
+
+        local instance4 = pyUsdGeom.Xform.Define firstInferenceStage "/Cubes/Cube4"
+        ((instance4.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelA_test.usda")
+        local instance4TranslateOp = instance4.AddTranslateOp()
+        instance4TranslateOp.Set (pyGf.Vec3f 0. -10. 0.)
+        local instance4RotateXYZOp = instance4.AddRotateXYZOp()
+        instance4RotateXYZOp.Set (pyGf.Vec3f 0. 45. 0.)
+        (instance4.GetPrim()).SetInstanceable(true)
+
+        (firstInferenceStage.GetRootLayer()).Save()
+
+        local filepathSecondInference = input_prefix + "import_positioned_instances_multi_levelC_test.usda"
+        local secondInferenceStage = pyUsd.Stage.CreateNew(filepathSecondInference)
+        pyUsdGeom.SetStageMetersPerUnit secondInferenceStage pyUsdGeom.LinearUnits.inches
+        -- keeping the default Y up axis
+        local manyMoreCubes = pyUsdGeom.Xform.Define secondInferenceStage "/ManyMoreCubes"
+
+        local manyCubes1 = pyUsdGeom.Xform.Define secondInferenceStage "/ManyMoreCubes/ManyCubes1"
+        ((manyCubes1.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelB_test.usda")
+        local manyCubesRotateXYZOp = manyCubes1.AddRotateXYZOp()
+        manyCubesRotateXYZOp.Set (pyGf.Vec3f 45. 0. 0.)
+        local manyCubesTranslateOp = manyCubes1.AddTranslateOp()
+        manyCubesTranslateOp.Set (pyGf.Vec3f 0. 0. 30)
+        (manyCubes1.GetPrim()).SetInstanceable(true)
+
+        local manyCubes2 = pyUsdGeom.Xform.Define secondInferenceStage "/ManyMoreCubes/ManyCubes2"
+        ((manyCubes2.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelB_test.usda")
+        local manyCubes2RotateXYZOp = manyCubes2.AddRotateXYZOp()
+        manyCubes2RotateXYZOp.Set (pyGf.Vec3f 135. 0. 0.)
+        local manyCubes2TranslateOp = manyCubes2.AddTranslateOp()
+        manyCubes2TranslateOp.Set (pyGf.Vec3f 0. 0. 30)
+        (manyCubes2.GetPrim()).SetInstanceable(true)
+            
+        local manyCubes3 = pyUsdGeom.Xform.Define secondInferenceStage "/ManyMoreCubes/ManyCubes3"
+        ((manyCubes3.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelB_test.usda")
+        local manyCubes3RotateXYZOp = manyCubes3.AddRotateXYZOp()
+        manyCubes3RotateXYZOp.Set (pyGf.Vec3f 225. 0. 0.)
+        local manyCubes3TranslateOp = manyCubes3.AddTranslateOp()
+        manyCubes3TranslateOp.Set (pyGf.Vec3f 0. 0. 30)
+        (manyCubes3.GetPrim()).SetInstanceable(true)
+
+        local manyCubes4 = pyUsdGeom.Xform.Define secondInferenceStage "/ManyMoreCubes/ManyCubes4"
+        ((manyCubes4.GetPrim()).GetReferences()).AddReference("./IMPORT_INSTANCE_TEST_import_positioned_instances_multi_levelB_test.usda")
+        local manyCubes4RotateXYZOp = manyCubes4.AddRotateXYZOp()
+        manyCubes4RotateXYZOp.Set (pyGf.Vec3f 315. 0. 0.)
+        local manyCubes4TranslateOp = manyCubes4.AddTranslateOp()
+        manyCubes4TranslateOp.Set (pyGf.Vec3f 0. 0. 30)
+        (manyCubes4.GetPrim()).SetInstanceable(true)
+
+        (secondInferenceStage.GetRootLayer()).Save()
+
+        importFile filepathSecondInference #noPrompt
+
+        -- the prototype itself is not kept at the end of the import process
+        -- the instances and their point helper (xform) should be imported
+        assert_equal 37 objects.count message:"The number of elements in the imported stage should be 37."
+
+         -- instances are properly positioned
+        local cubeNode = $ManyMoreCubes/ManyCubes1/Cube1/CubePrim
+        assert_point3_equal ([0, -21.2132, -21.2132]) cubeNode.pos
+        assert_equal ((EulerAngles -135 -45 0) as quat) cubeNode.rotation
+    ),
+    
+    function test_import_one_material_for_all_instances = (
+        local filepath = input_prefix + "import_one_material_for_all_instances_test.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        pyUsdGeom.SetStageMetersPerUnit stage pyUsdGeom.LinearUnits.inches
+        
+        -- Create cube ref file
+        local refPrim = stage.CreateClassPrim "/referencePrim"
+        local cubePrim = pyUsdGeom.Mesh.Define stage "/referencePrim/CubePrim"
+        local points = #((pyGf.Vec3f -2.5 -2.5 0), (pyGf.Vec3f 2.5 -2.5 0), (pyGf.Vec3f -2.5 2.5 0), (pyGf.Vec3f 2.5 2.5 0), (pyGf.Vec3f -2.5 -2.5 5), (pyGf.Vec3f 2.5 -2.5 5), (pyGf.Vec3f -2.5 2.5 5), (pyGf.Vec3f 2.5 2.5 5))
+        local vertexCount = #(4, 4, 4, 4, 4, 4)
+        local vertexIndices = #(0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6)
+        cubePrim.CreatePointsAttr(points)
+        cubePrim.CreateFaceVertexCountsAttr(vertexCount)
+        cubePrim.CreateFaceVertexIndicesAttr(vertexIndices)
+
+        local scopeMtl = pyUsdGeom.Scope.Define stage "/mtl"
+        local bbmaterial = pyShade.Material.Define stage "/mtl/MaterialName"
+        local pbrShader = pyShade.Shader.Define stage "/mtl/MaterialName/PBRShader"
+
+        roughness_value = 0.4
+        metallic_value = 0.12
+        diffuseColor_value = (pyGf.Vec3f 111.0 222.0 111.0)
+        opacity_value = 0.77
+
+        pbrShader.CreateIdAttr "UsdPreviewSurface"
+        local roughnessInput = pbrShader.CreateInput "roughness" pySdf.ValueTypeNames.Float
+        roughnessInput.Set roughness_value
+        local metallicInput = pbrShader.CreateInput "metallic" pySdf.ValueTypeNames.Float
+        metallicInput.Set(metallic_value)
+        local diffuseInput = pbrShader.CreateInput "diffuseColor"  pySdf.ValueTypeNames.Color3f
+        diffuseInput.Set (pyGf.Vec3f (diffuseColor_value[1]/255.0) (diffuseColor_value[2]/255.0) (diffuseColor_value[3]/255.0))
+        local opacityInput = pbrShader.CreateInput "opacity" pySdf.ValueTypeNames.Float
+        opacityInput.Set opacity_value
+
+        local surfaceOutput = bbmaterial.CreateSurfaceOutput()
+        surfaceOutput.ConnectToSource (pbrShader.ConnectableAPI()) "surface"
+
+        local cubeMaterialBinding = pyShade.MaterialBindingAPI cubePrim
+        cubeMaterialBinding.Bind bbmaterial
+        
+        local instance1 = pyUsdGeom.Xform.Define stage "/CubePrimInstance1"
+        local instance2 = pyUsdGeom.Xform.Define stage "/CubePrimInstance2"
+        local instance3 = pyUsdGeom.Xform.Define stage "/CubePrimInstance3"
+        local instance3CubeOverwrite = stage.OverridePrim "/CubePrimInstance3/CubePrim"
+        local meshoverride = pyUsdGeom.Gprim(instance3CubeOverwrite)
+
+        ((instance1.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance2.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        ((instance3.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+            
+        (instance1.GetPrim()).SetInstanceable(true)
+        (instance2.GetPrim()).SetInstanceable(true)
+            
+        meshoverride.CreateDisplayColorAttr (pyVt.Vec3fArray (pyGf.Vec3f 1 0 0))
+        (stage.GetRootLayer()).Save()
+    
+        importFile filepath #noPrompt
+        
+        -- the prototype itself is not kept at the end of the import process
+        -- the instances and their point helper (xform) should be imported
+        assert_equal 6 objects.count message:"The number of elements in the imported stage should be 6."
+        local cubeNode1 = $CubePrimInstance1/CubePrim
+        local cubeNode2 = $CubePrimInstance2/CubePrim
+        local cubeNode3 = $CubePrimInstance3/CubePrim
+        
+        -- only one material is shared between are instances
+        assert_equal 1 sceneMaterials.count
+        local cubeNode1Material = cubeNode1.mat
+        assert_equal (ClassOf cubeNode1Material) MaxUsdPreviewSurface
+        assert_equal cubeNode1Material.name "MaterialName"
+
+        assert_equal cubeNode1Material.roughness roughness_value
+        assert_equal cubeNode1Material.metallic metallic_value
+        assert_equal cubeNode1Material.diffusecolor (color diffuseColor_value[1] diffuseColor_value[2] diffuseColor_value[3])
+        assert_equal cubeNode1Material.opacity opacity_value
+            
+        assert_equal cubeNode1Material cubeNode2.mat
+        assert_equal cubeNode1Material cubeNode3.mat
+    ),
+
+    function test_import_material_override_on_instance = (
+        local filepath = input_prefix + "import_material_override_on_instance_test.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        
+        -- Create cube ref file
+        local refPrim = stage.CreateClassPrim "/referencePrim"
+        local cubePrim = pyUsdGeom.Mesh.Define stage "/referencePrim/CubePrim"
+        local points = #((pyGf.Vec3f -2.5 -2.5 0), (pyGf.Vec3f 2.5 -2.5 0), (pyGf.Vec3f -2.5 2.5 0), (pyGf.Vec3f 2.5 2.5 0), (pyGf.Vec3f -2.5 -2.5 5), (pyGf.Vec3f 2.5 -2.5 5), (pyGf.Vec3f -2.5 2.5 5), (pyGf.Vec3f 2.5 2.5 5))
+        local vertexCount = #(4, 4, 4, 4, 4, 4)
+        local vertexIndices = #(0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6)
+        cubePrim.CreatePointsAttr(points)
+        cubePrim.CreateFaceVertexCountsAttr(vertexCount)
+        cubePrim.CreateFaceVertexIndicesAttr(vertexIndices)
+
+        local instance1 = pyUsdGeom.Xform.Define stage "/CubePrimInstance1"
+        ((instance1.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        (instance1.GetPrim()).SetInstanceable(true)
+
+        local instance2 = pyUsdGeom.Xform.Define stage "/CubePrimInstance2"
+        local instance3 = pyUsdGeom.Xform.Define stage "/CubePrimInstance3"
+
+        -- create a material to bind to the reference
+        local scopeMtl = pyUsdGeom.Scope.Define stage "/mtl"
+        local material1 = pyShade.Material.Define stage "/mtl/MaterialName"
+        local pbrShader = pyShade.Shader.Define stage "/mtl/MaterialName/PBRShader"
+
+        roughness_value = 0.4
+        metallic_value = 0.12
+        diffuseColor_value = (pyGf.Vec3f 111.0 222.0 111.0)
+        opacity_value = 0.77
+
+        pbrShader.CreateIdAttr "UsdPreviewSurface"
+        local roughnessInput = pbrShader.CreateInput "roughness" pySdf.ValueTypeNames.Float
+        roughnessInput.Set roughness_value
+        local metallicInput = pbrShader.CreateInput "metallic" pySdf.ValueTypeNames.Float
+        metallicInput.Set(metallic_value)
+        local diffuseInput = pbrShader.CreateInput "diffuseColor"  pySdf.ValueTypeNames.Color3f
+        diffuseInput.Set (pyGf.Vec3f (diffuseColor_value[1]/255.0) (diffuseColor_value[2]/255.0) (diffuseColor_value[3]/255.0))
+        local opacityInput = pbrShader.CreateInput "opacity" pySdf.ValueTypeNames.Float
+        opacityInput.Set opacity_value
+
+        local surfaceOutput = material1.CreateSurfaceOutput()
+        surfaceOutput.ConnectToSource (pbrShader.ConnectableAPI()) "surface"
+
+        local cubeMaterialBinding = pyShade.MaterialBindingAPI cubePrim
+        cubeMaterialBinding.Bind material1
+        
+        -- create an override material to bind to the second instance
+        local material2= pyShade.Material.Define stage "/mtl/MaterialOverrideName"
+        local pbrShader2 = pyShade.Shader.Define stage "/mtl/MaterialOverrideName/PBRShader"
+
+        diffuseOverrideColor_value = (pyGf.Vec3f 222.0 200.0 200.0)
+
+        pbrShader2.CreateIdAttr "UsdPreviewSurface"
+        local roughnessInput2 = pbrShader2.CreateInput "roughness" pySdf.ValueTypeNames.Float
+        roughnessInput2.Set roughness_value
+        local metallicInput2 = pbrShader2.CreateInput "metallic" pySdf.ValueTypeNames.Float
+        metallicInput2.Set(metallic_value)
+        local diffuseInput2 = pbrShader2.CreateInput "diffuseColor"  pySdf.ValueTypeNames.Color3f
+        diffuseInput2.Set (pyGf.Vec3f (diffuseOverrideColor_value[1]/255.0) (diffuseOverrideColor_value[2]/255.0) (diffuseOverrideColor_value[3]/255.0))
+        local opacityInput2 = pbrShader2.CreateInput "opacity" pySdf.ValueTypeNames.Float
+        opacityInput2.Set opacity_value
+
+        local surfaceOutput2 = material2.CreateSurfaceOutput()
+        surfaceOutput2.ConnectToSource (pbrShader2.ConnectableAPI()) "surface"
+
+        local instance2CubeOverwrite = stage.OverridePrim "/CubePrimInstance2/CubePrim"
+        local cubeMaterialBinding2 = pyShade.MaterialBindingAPI instance2CubeOverwrite
+        cubeMaterialBinding2.Bind material2
+        ((instance2.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+
+        ((instance3.GetPrim()).GetInherits()).AddInherit("/referencePrim")
+        local instance3CubeOverwrite = stage.OverridePrim "/CubePrimInstance3/CubePrim"
+        local meshoverride = pyUsdGeom.Gprim(instance3CubeOverwrite)
+        meshoverride.CreateDisplayColorAttr (pyVt.Vec3fArray (pyGf.Vec3f 1 0 0))
+
+        (stage.GetRootLayer()).Save()
+    
+        importFile filepath #noPrompt
+        
+        -- the prototype itself is not kept at the end of the import process
+        -- the instances and their point helper (xform) should be imported
+        assert_equal 6 objects.count message:"The number of elements in the imported stage should be 6."
+        local cubeNode1 = $CubePrimInstance1/CubePrim
+        local cubeNode2 = $CubePrimInstance2/CubePrim
+        local cubeNode3 = $CubePrimInstance3/CubePrim
+
+        -- instance1 and instance3 share the same material
+        -- instance3 has its own material
+        assert_equal 2 sceneMaterials.count
+
+        local cubeNode1 = $CubePrimInstance1/CubePrim
+        local cubeNode1Material = cubeNode1.mat
+        assert_equal (ClassOf cubeNode1Material) MaxUsdPreviewSurface
+        assert_equal "MaterialName" cubeNode1Material.name
+
+        assert_equal roughness_value cubeNode1Material.roughness
+        assert_equal metallic_value cubeNode1Material.metallic
+        assert_equal (color diffuseColor_value[1] diffuseColor_value[2] diffuseColor_value[3]) cubeNode1Material.diffusecolor
+        assert_equal opacity_value cubeNode1Material.opacity
+            
+        local cubeNode2 = $CubePrimInstance2/CubePrim
+        local cubeNode2Material = cubeNode2.mat
+        assert_equal (ClassOf cubeNode2Material) MaxUsdPreviewSurface
+        assert_equal cubeNode2Material.name "MaterialOverrideName"
+
+        assert_equal roughness_value cubeNode2Material.roughness
+        assert_equal metallic_value cubeNode2Material.metallic
+        assert_equal (color diffuseOverrideColor_value[1] diffuseOverrideColor_value[2] diffuseOverrideColor_value[3]) cubeNode2Material.diffusecolor 
+        assert_equal cubeNode2Material.opacity opacity_value
+
+        local cubeNode3 = $CubePrimInstance3/CubePrim
+        -- cube3 has the same material has cube1
+        assert_equal cubeNode1Material cubeNode3.mat
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(
+        import_ref_instance_test,
+        test_import_invisible_instance,
+        test_import_positioned_instances,
+        test_import_positioned_instances_multi_level,
+        test_import_one_material_for_all_instances,
+        test_import_material_override_on_instance
+    )
+)
+
+runUsdTestFixture import_instance_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_light_test.ms b/src/Tests/Integration/import_light_test.ms
new file mode 100644
index 0000000..074e31e
--- /dev/null
+++ b/src/Tests/Integration/import_light_test.ms
@@ -0,0 +1,411 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdLux = python.import("pxr.UsdLux")
+pyGf = python.import("pxr.Gf")
+
+input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_LIGHT_TEST_"
+deleteTestFiles(input_prefix + "*.*")
+
+struct import_light_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    
+    function resetSceneAndUnits = 
+    (
+        resetmaxfile #noprompt
+        units.SystemType = #inches
+        units.SystemScale = 1.0        
+    ),
+    
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetSceneAndUnits()
+    ),
+    
+    -- Tests to validate the USD light types import as expected 3ds Max Photometric light types
+    -- The import of a USD light is based on the export table of the Photometric Light Shape and its selected
+    -- light distribution type
+    -- Below is the conversion grid used by the export for reference :
+    ----------------------------------------------------------------------------------------------------
+    --                                            3ds Max Photometric Light Shapes
+    --                              Point      Sphere     Disc        Line      Cylinder    Rectangle
+    -----------------------------------------|--------|-----------|-----------|----------|--------------
+    --              |  diffuse  |  DiskLight |   n/a  | DiskLight | RectLight |    n/a   |  RectLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    -- Distribution | spherical |            SphereLight          |           CylinderLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    --     Type     |    Spot   |  DiskLight |   n/a  | DiskLight | RectLight |    n/a   |  RectLight
+    --              |-----------|------------|--------|-----------|-----------|----------|--------------
+    --              |  Web/IES  |  DiskLight | Sphere | DiskLight | RectLight | Cylinder |  RectLight
+    ----------------------------------------------------------------------------------------------------   
+    function usd_lux_light_general_attributes_import_test = (
+        -- USD Lux Disk light will be imported back as a Photometric Disk light using a uniform distribution
+        local filepath = input_prefix + "test_lux_disk_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "DiskLightPrim"
+        local lightPrim = pyUsdLux.DiskLight.Define stage ("/" + lightName)
+        local lightRadius = 2.8
+        lightPrim.CreateRadiusAttr(lightRadius)
+        
+        -- general light attributes
+        lightPrim.CreateNormalizeAttr(True)
+        lightIntensity = 1623.1595  -- 500 candelas normalized (using 3ds Max default env setting)
+        lightPrim.CreateIntensityAttr(lightIntensity)
+        lightPrim.CreateEnableColorTemperatureAttr(True)
+        local lightKelvin = 7000.0
+        lightPrim.CreateColorTemperatureAttr(lightKelvin)
+        lightColor = color 255 0 0
+        lightPrim.CreateColorAttr((pyGf.Vec3f (lightColor.r/255.0) (lightColor.g/255.0) (lightColor.b/255.0)))
+        local lightShadowAPI = pyUsdLux.ShadowAPI(lightPrim)
+        lightShadowAPI.CreateShadowEnableAttr(True)
+        lightShadowColor = color 0 255 0
+        lightShadowAPI.CreateShadowColorAttr((pyGf.Vec3f (lightShadowColor.r/255.0) (lightShadowColor.g/255.0) (lightShadowColor.b/255.0)))
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Disc importedLight.type message:(importedLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 importedLight.distribution message:(importedLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal lightRadius importedLight.radius message:(importedLight.name + " light radius is expected to be '" + (lightRadius as String) + "'")
+        
+        assert_true importedLight.useKelvin message:(importedLight.name + " light should be using Kelvin (temperature) color")
+        assert_float_equal lightKelvin importedLight.kelvin message:(importedLight.name + " light should report a Kelvin (temperature) color of '" + (lightKelvin as String) + "'")
+        assert_equal lightColor importedLight.rgbFilter message:(importedLight.name + " light filter color should be set to the USD light color")
+        assert_true importedLight.castShadows message:(importedLight.name + " light should be set to cast shadows")
+        assert_equal lightShadowColor importedLight.shadowColor message:(importedLight.name + " light shadow color should be set to the USD light shadow color")
+        assert_true importedLight.affectSpecular message:(importedLight.name + " light should affect specular on surfaces")
+        assert_true importedLight.affectDiffuse message:(importedLight.name + " light should affect diffuse on surfaces")
+        assert_equal 1 importedLight.intensityType message:(importedLight.name + " light should report intensity in candelas")
+        assert_float_equal 500.0 importedLight.intensity message:(importedLight.name + " light intensity should be set to 500")
+
+        resetSceneAndUnits()
+
+        -- USD Lux Disk light will be imported back as a Photometric Disk light using a uniform distribution
+        -- changing some attributes
+        --  - disable color temperature
+        --  - turn off shadows
+        --  - turn off specular effect
+        --  - turn off diffuse effect
+        local filepath = input_prefix + "test_lux_disk_second_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "DiskLightSecondPrim"
+        local lightPrim = pyUsdLux.DiskLight.Define stage ("/" + lightName)
+        local lightRadius = 1.8
+        lightPrim.CreateRadiusAttr(lightRadius)
+        
+        -- general light attributes
+        lightPrim.CreateNormalizeAttr(True)
+        lightPrim.CreateEnableColorTemperatureAttr(False)
+        lightColor = color 255 0 0
+        lightPrim.CreateColorAttr((pyGf.Vec3f (lightColor.r/255.0) (lightColor.g/255.0) (lightColor.b/255.0)))
+        local lightShadowAPI = pyUsdLux.ShadowAPI(lightPrim)
+        lightShadowAPI.CreateShadowEnableAttr(False)
+        lightShadowColor = color 0 255 0
+        lightShadowAPI.CreateShadowColorAttr((pyGf.Vec3f (lightShadowColor.r/255.0) (lightShadowColor.g/255.0) (lightShadowColor.b/255.0)))
+        lightPrim.CreateSpecularAttr(0.0)
+        lightPrim.CreateDiffuseAttr(0.0)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Disc importedLight.type message:(importedLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 importedLight.distribution message:(importedLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal lightRadius importedLight.radius message:(importedLight.name + " light radius is expected to be '" + (lightRadius as String) + "'")
+        
+        assert_false importedLight.useKelvin message:(importedLight.name + " light should not be using Kelvin (temperature) color")
+        assert_float_equal 3600.0 importedLight.kelvin message:(importedLight.name + " light should default to 3600 Kelvin if Kelvin color is not enabled")
+        assert_equal (lightColor as string) (importedLight.rgbFilter as string) message:(importedLight.name + " light filter color should be set to the USD light color")
+        assert_false importedLight.baseObject.castShadows message:(importedLight.name + " light should not be set to cast shadows")
+        assert_equal lightShadowColor importedLight.shadowColor message:(importedLight.name + " light shadow color should be set to the USD light shadow color")
+        assert_false importedLight.affectSpecular message:(importedLight.name + " light should not affect specular on surfaces")
+        assert_false importedLight.affectDiffuse message:(importedLight.name + " light should not affect diffuse on surfaces")
+    ),
+
+    function usd_lux_disk_light_import_test = (
+        -- USD Lux Disk light will be imported back as a Photometric Disk light using a uniform distribution
+        local filepath = input_prefix + "test_lux_disk_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "DiskLightPrim"
+        local lightPrim = pyUsdLux.DiskLight.Define stage ("/" + lightName)
+        local lightRadius = 2.8
+        lightPrim.CreateRadiusAttr(lightRadius)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Disc importedLight.type message:(importedLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 importedLight.distribution message:(importedLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal lightRadius importedLight.radius message:(importedLight.name + " light radius is expected to be '" + (lightRadius as String) + "'")
+    ),
+
+    function usd_lux_sphere_light_import_test = (
+        -- USD Lux Sphere light will be imported back as a Photometric Sphere light using a spherical distribution
+        local filepath = input_prefix + "test_lux_sphere_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "SphereLightPrim"
+        local lightPrim = pyUsdLux.SphereLight.Define stage ("/" + lightName)
+        local lightRadius = 15.5
+        lightPrim.CreateRadiusAttr(lightRadius)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Sphere importedLight.type message:(importedLight.name + " light should be of type Photometric Sphere Light")
+        assert_equal 0 importedLight.distribution message:(importedLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal lightRadius importedLight.radius message:(importedLight.name + " light radius is expected to be '" + (lightRadius as String) + "'")
+
+        resetSceneAndUnits()
+
+        -- USD Lux Sphere light using a 'treat as point' attribute
+        -- will be imported back as a Photometric Point light using a spherical distribution
+        local filepath = input_prefix + "test_lux_sphere_treat_as_point_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        local lightName = "SpherePointLightPrim"
+        local lightPrim = pyUsdLux.SphereLight.Define stage ("/" + lightName)
+        lightPrim.CreateTreatAsPointAttr(True)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Point importedLight.type message:(importedLight.name + " light should be of type Photometric Point Light")
+        assert_equal 0 importedLight.distribution message:(importedLight.name + " light should use a Spherical (isotropic) light distribution")
+    ),
+
+    function usd_lux_rect_light_import_test = (
+        -- USD Lux Rect light will be imported back as a Photometric Rectangle light using a uniform distribution
+        local filepath = input_prefix + "test_lux_rect_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "RectLightPrim"
+        local lightPrim = pyUsdLux.RectLight.Define stage ("/" + lightName)
+        local lightWidth = 8.8
+        lightPrim.CreateWidthAttr(lightWidth)
+        local lightHeight = 2.4
+        lightPrim.CreateHeightAttr(lightHeight)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Rectangle importedLight.type message:(importedLight.name + " light should be of type Photometric Rectangle Light")
+        assert_equal 2 importedLight.distribution message:(importedLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal lightWidth importedLight.width message:(importedLight.name + " light width is expected to be '" + (lightWidth as String) + "'")
+        assert_float_equal lightHeight importedLight.length message:(importedLight.name + " light length is expected to be '" + (lightHeight as String) + "'")
+    ),
+
+    function usd_lux_cylinder_light_import_test = (
+        -- USD Lux Cylinder light will be imported back as a Photometric Cylinder light using a spherical distribution
+        local filepath = input_prefix + "test_lux_cylinder_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "CylinderLightPrim"
+        local lightPrim = pyUsdLux.CylinderLight.Define stage ("/" + lightName)
+        local lightRadius = 5.5
+        local lightLength = 30.0
+        lightPrim.CreateRadiusAttr(lightRadius)
+        lightPrim.CreateLengthAttr(lightLength)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Cylinder importedLight.type message:(importedLight.name + " light should be of type Photometric Cylinder Light")
+        assert_equal 0 importedLight.distribution message:(importedLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal lightRadius importedLight.radius message:(importedLight.name + " light radius is expected to be '" + (lightRadius as String) + "'")
+        assert_float_equal lightLength importedLight.length message:(importedLight.name + " light length is expected to be '" + (lightLength as String) + "'")
+
+        resetSceneAndUnits()
+
+        -- USD Lux Cylinder light using a 'treat as line' attribute
+        -- will be imported back as a Photometric Line light using a spherical distribution
+        local filepath = input_prefix + "test_lux_cylinder_treat_as_line_import.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254  -- default 3ds Max units are in inches
+        local lightName = "CylinderLineLightPrim"
+        local lightPrim = pyUsdLux.CylinderLight.Define stage ("/" + lightName)
+        local lightLength = 22.5
+        lightPrim.CreateTreatAsLineAttr(True)
+        lightPrim.CreateLengthAttr(lightLength)
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile filepath
+        importedLight = objects[1]
+        
+        assert_equal lightName importedLight.name  message:(importedLight.name + " light should be named '" + lightName + "'")
+        assert_equal #Free_Line importedLight.type message:(importedLight.name + " light should be of type Photometric Line Light")
+        assert_equal 0 importedLight.distribution message:(importedLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal lightLength importedLight.length message:(importedLight.name + " light length is expected to be '" + (lightLength as String) + "'")
+    ),
+
+    function animated_light_import_test = (
+        units.SystemType = #Millimeters
+        units.SystemScale = 1
+
+        -- Import animated lights
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local importPath = (scriptDir + @"data\lights_animated.usda")
+
+        importOptions = USDImporter.CreateOptions()
+        importOptions.StartTimeCode = 0
+        importOptions.EndTimeCode = 10
+        importOptions.TimeMode = #CustomRange
+        USDImporter.ImportFile importPath importOptions:importOptions
+
+        local cylinderLight = getNodeByName "CylinderLight_Light"
+        sliderTime = 0
+        assert_equal #Free_Cylinder cylinderLight.type message:(cylinderLight.name + " light should be of type Photometric Cylinder Light")
+        assert_equal 0 cylinderLight.distribution message:(cylinderLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal 20.0f cylinderLight.radius message:(cylinderLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_float_equal 100.0f cylinderLight.length message:(cylinderLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 cylinderLight.intensityType message:(cylinderLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 cylinderLight.intensity message:(cylinderLight.name + " light intensity should be set to 1500")
+        sliderTime = 10
+        assert_equal #Free_Cylinder cylinderLight.type message:(cylinderLight.name + " light should be of type Photometric Cylinder Light")
+        assert_equal 0 cylinderLight.distribution message:(cylinderLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal 40.0f cylinderLight.radius message:(cylinderLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_float_equal 200.0f cylinderLight.length message:(cylinderLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 cylinderLight.intensityType message:(cylinderLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 cylinderLight.intensity message:(cylinderLight.name + " light intensity should be set to 750")
+
+        local discLight = getNodeByName "DiscLight"
+        sliderTime = 0
+        assert_equal #Free_Disc discLight.type message:(discLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 discLight.distribution message:(discLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal 20.0f discLight.radius message:(discLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 discLight.intensityType message:(discLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 discLight.intensity message:(discLight.name + " light intensity should be set to 1500")
+        sliderTime = 10
+        assert_equal #Free_Disc discLight.type message:(discLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 discLight.distribution message:(discLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal 40.0f discLight.radius message:(discLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 discLight.intensityType message:(discLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 discLight.intensity message:(discLight.name + " light intensity should be set to 750")
+
+        local lineLight = getNodeByName "LineLight"
+        sliderTime = 0
+        assert_equal #Free_Rectangle lineLight.type message:(lineLight.name + " light should be of type Photometric Rectangle Light")
+        assert_equal 2 lineLight.distribution message:(lineLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal .1f lineLight.width message:(lineLight.name + " light width is expected to be the value specified in the USD file")
+        assert_float_equal 50 lineLight.length message:(lineLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 lineLight.intensityType message:(lineLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 lineLight.intensity message:(lineLight.name + " light intensity should be set to 1500")
+        sliderTime = 10
+        assert_equal #Free_Rectangle lineLight.type message:(lineLight.name + " light should be of type Photometric Rectangle Light")
+        assert_equal 2 lineLight.distribution message:(lineLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal .1f lineLight.width message:(lineLight.name + " light width is expected to be the value specified in the USD file")
+        assert_float_equal 100 lineLight.length message:(lineLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 lineLight.intensityType message:(lineLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 lineLight.intensity message:(lineLight.name + " light intensity should be set to 750")
+
+        local pointLight = getNodeByName "PointLight"
+        sliderTime = 0
+        assert_equal #Free_Disc pointLight.type message:(pointLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 pointLight.distribution message:(pointLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal .001 pointLight.radius message:(pointLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 pointLight.intensityType message:(pointLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 pointLight.intensity message:(pointLight.name + " light intensity should be set to 1500")
+        assert_true pointLight.useKelvin message:(pointLight.name + " light should be using Kelvin (temperature) color")
+        assert_float_equal 3600 pointLight.kelvin message:(pointLight.name + " light should report a Kelvin (temperature) color value specified in the USD file")
+        assert_equal (color 255 255 255) pointLight.rgbFilter message:(pointLight.name + " light filter color should be set to the USD light color")
+        sliderTime = 10
+        assert_equal #Free_Disc pointLight.type message:(pointLight.name + " light should be of type Photometric Disc Light")
+        assert_equal 2 pointLight.distribution message:(pointLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal .001 pointLight.radius message:(pointLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 pointLight.intensityType message:(pointLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 pointLight.intensity message:(pointLight.name + " light intensity should be set to 750")
+        assert_true pointLight.useKelvin message:(pointLight.name + " light should be using Kelvin (temperature) color")
+        assert_float_equal 1000 pointLight.kelvin message:(pointLight.name + " light should report a Kelvin (temperature) color value specified in the USD file")
+        assert_float_equal 255.0 (pointLight.rgbFilter.r) message:(pointLight.name + " light filter color (red) should be set to the USD light color")
+        assert_float_equal 21.5836 (pointLight.rgbFilter.g) message:(pointLight.name + " light filter color (green) should be set to the USD light color")
+        assert_float_equal 21.5836 (pointLight.rgbFilter.b) message:(pointLight.name + " light filter color (blue) should be set to the USD light color")
+
+        local rectangleLight = getNodeByName "RectangleLight"
+        sliderTime = 0
+        assert_equal #Free_Rectangle rectangleLight.type message:(rectangleLight.name + " light should be of type Photometric Rectangle Light")
+        assert_equal 2 rectangleLight.distribution message:(rectangleLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal 100 rectangleLight.width message:(rectangleLight.name + " light width is expected to be the value specified in the USD file")
+        assert_float_equal 100 rectangleLight.length message:(rectangleLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 rectangleLight.intensityType message:(rectangleLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 rectangleLight.intensity message:(rectangleLight.name + " light intensity should be set to 1500")
+        sliderTime = 10
+        assert_equal #Free_Rectangle rectangleLight.type message:(rectangleLight.name + " light should be of type Photometric Rectangle Light")
+        assert_equal 2 rectangleLight.distribution message:(rectangleLight.name + " light should use a Uniform (diffuse) light distribution")
+        assert_float_equal 50 rectangleLight.width message:(rectangleLight.name + " light width is expected to be the value specified in the USD file")
+        assert_float_equal 50 rectangleLight.length message:(rectangleLight.name + " light length is expected to be the value specified in the USD file")
+        assert_equal 1 rectangleLight.intensityType message:(rectangleLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 rectangleLight.intensity message:(rectangleLight.name + " light intensity should be set to 750")
+
+        local sphereLight = getNodeByName "SphereLight"
+        sliderTime = 0
+        assert_equal #Free_Sphere sphereLight.type message:(sphereLight.name + " light should be of type Photometric Sphere Light")
+        assert_equal 0 sphereLight.distribution message:(sphereLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal 10.0f sphereLight.radius message:(sphereLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 sphereLight.intensityType message:(sphereLight.name + " light should report intensity in candelas")
+        assert_float_equal 1500.0 sphereLight.intensity message:(sphereLight.name + " light intensity should be set to 1500")
+        sliderTime = 10
+        assert_equal #Free_Sphere sphereLight.type message:(sphereLight.name + " light should be of type Photometric Sphere Light")
+        assert_equal 0 sphereLight.distribution message:(sphereLight.name + " light should use a Spherical (isotropic) light distribution")
+        assert_float_equal 20.0f sphereLight.radius message:(sphereLight.name + " light radius is expected to be the value specified in the USD file")
+        assert_equal 1 sphereLight.intensityType message:(sphereLight.name + " light should report intensity in candelas")
+        assert_float_equal 750.0 sphereLight.intensity message:(sphereLight.name + " light intensity should be set to 750")
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale        
+    ),
+    Tests = #(
+        usd_lux_light_general_attributes_import_test,
+        usd_lux_disk_light_import_test,
+        usd_lux_sphere_light_import_test,
+        usd_lux_rect_light_import_test,
+        usd_lux_cylinder_light_import_test,
+        animated_light_import_test
+    )
+)
+
+runUsdTestFixture import_light_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_material_id_test.ms b/src/Tests/Integration/import_material_id_test.ms
new file mode 100644
index 0000000..a1b4e82
--- /dev/null
+++ b/src/Tests/Integration/import_material_id_test.ms
@@ -0,0 +1,255 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyShade = python.import("pxr.UsdShade")
+pyVt = python.import("pxr.Vt")
+
+input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_MATERIAL_ID_TEST_"
+deleteTestFiles(input_prefix + "*.*")
+
+struct import_material_id_test
+(
+    private 
+    pyramidPrimPath = "/Prim001",
+    
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function add_pyramid_to_stage &stage addMaterialIdData displayColor = (
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        local prim001 = pyUsdGeom.Mesh.Define stage pyramidPrimPath
+        local points = #((pyGf.Vec3f -10 0 -10), (pyGf.Vec3f 10 0 -10), (pyGf.Vec3f -10 0 10), (pyGf.Vec3f 10 0 10), (pyGf.Vec3f 0 20 0))
+        local vertexCount = #(3,3,3,3,4)
+        local vertexIndices = #(0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2)
+        prim001.CreatePointsAttr(points)
+        prim001.CreateFaceVertexCountsAttr(vertexCount)
+        prim001.CreateFaceVertexIndicesAttr(vertexIndices)
+        if addMaterialIdData == true do
+        (
+            local bindingAPI = pyShade.MaterialBindingAPI(prim001)
+            for i = 0 to 4 do (
+                indices = pyVt.IntArray(#(i))
+                subsetName = "_" + ((i+1) as string) + "_"
+                bindingAPI.CreateMaterialBindSubset subsetName indices
+            )
+        )
+        
+        if (displayColor != undefined) then (
+            local colorAttr = prim001.GetDisplayColorAttr()
+            colorAttr.Set((pyVt.Vec3fArray ((pyGf.Vec3f (displayColor.r/255) (displayColor.g/255) (displayColor.b/255)))))
+        )
+    ),
+    
+    function create_usd_pyramid_file filePath addMaterialIdData color:undefined = (
+        local stage = pyUsd.Stage.CreateNew(filePath)
+        add_pyramid_to_stage &stage addMaterialIdData color
+        (stage.GetRootLayer()).Save()
+    ),
+    
+    function test_import_material_id = (
+        -- Populate usd scene file
+        local importPath = input_prefix + "import_material_id_test.usda"
+        create_usd_pyramid_file importPath true
+            
+        -- Import file
+        USDImporter.ImportFile importPath
+
+        local prim001 = $prim001
+        
+        for i = 1 to 5 do (
+            mtlId = polyop.getFaceMatID prim001 i
+            assert_equal mtlId i
+        )
+        
+        -- If different material Ids are used, make sure the importer generated a Multimaterial
+        -- ready to accept the different materials. The slot names should correspond to 
+        -- the material names.
+        
+        assert_equal (classOf prim001.material) Multimaterial message:"Found unexpected material type."
+        local slotNames = prim001.material.names
+        local materials = prim001.material.materialList
+        for i = 1 to 5 do (
+            local subsetName = "_" + (i as string) + "_"
+            assert_equal subsetName slotNames[i] message:"Unexpected material slot name."
+            -- Make sure the same fallback material is connected to all slots.
+            if (i > 2) then (
+                assert_equal materials[i-1] materials[i] message:"All of the mutlimaterial's slots are not connected to the same material."
+            )    
+        )
+    ),
+    
+    function test_import_file_with_no_material_id = (
+        local importPath = input_prefix + "import_file_with_no_material_id_test.usda"
+        -- Populate usd scene file
+        create_usd_pyramid_file importPath false
+        -- Import file
+        USDImporter.ImportFile importPath
+
+        local prim001 = $prim001
+        for i = 1 to 5 do (
+            mtlId = polyop.getFaceMatID prim001 i
+            assert_equal mtlId 1
+        )
+        
+        -- If the same material ID is used accross the mesh, the importer should
+        -- not have created a multi-material.
+        assert_undefined prim001.material message:"A multimaterial should not have been created if a single material Id is used."
+    ),
+    
+    function test_subset_material_default_color = (
+        local importPath = input_prefix + "subset_material_default_color_test.usda"
+        -- displayColor attribute is not authored, fallback material color should be gray : Color(127.5 127.5 127.5)
+        create_usd_pyramid_file importPath true
+        USDImporter.ImportFile importPath
+        local prim001 = $prim001
+        local mat = prim001.material.materialList[1]
+        assert_point3_equal (Point3 127.5 127.5 127.5) (mat.Base_Color as Point3) message:"Incorrect color found on the default material."
+        
+        resetMaxFile #noprompt
+        -- displayColor attribute is now authored, fallback material color be that same color.
+        local displayColorValue = (Color 255 0 0)
+        local importPath = input_prefix + "subset_material_default_color_test.usda"
+        create_usd_pyramid_file importPath true color:displayColorValue
+        USDImporter.ImportFile importPath
+        prim001 = $prim001
+        mat = prim001.material.materialList[1]
+        assert_point3_equal (mat.Base_Color as Point3) displayColorValue message:"Incorrect color found on the default material."
+    ),
+
+    function test_import_material_id_from_custom_data = (
+        local importPath = input_prefix + "import_material_id_from_custom_data_test.usda"
+        -- displayColor attribute is not authored, fallback material color should be gray : Color(127.5 127.5 127.5)
+        local stage = pyUsd.Stage.CreateNew(importPath)
+        
+        add_pyramid_to_stage &stage false undefined
+        
+        local pyramidPrim = stage.GetPrimAtPath(pyramidPrimPath)
+        local bindingAPI = pyShade.MaterialBindingAPI(pyramidPrim)
+        local subsets = #()
+        for i = 0 to 4 do (
+            indices = pyVt.IntArray(#(i))
+            subsetName = "_" + ((i+1) as string) + "_"
+            subset = bindingAPI.CreateMaterialBindSubset subsetName indices
+            append subsets subset
+        )
+        
+        -- Set subset 2 matId to a invalid value (string)
+        local subset1 = subsets[1]
+        subset1Prim = subset1.GetPrim()
+        subset1Prim.SetCustomDataByKey "3dsmax:matId" "SUPRISE!"
+        
+        -- Set subset 2 matId to 12
+        local subset2 = subsets[2]
+        subset2Prim = subset2.GetPrim()
+        subset2Prim.SetCustomDataByKey "3dsmax:matId" 12
+        
+        -- Set subset 3 matId to an invalid integer value
+        local subset3 = subsets[3]
+        subset3Prim = subset3.GetPrim()
+        subset3Prim.SetCustomDataByKey "3dsmax:matId" -1
+        
+        -- Leave subset 4 with no custom data
+        
+        (stage.GetRootLayer()).Save()
+        
+        -- Validate the expected behavior
+        -- Invalid and missing material id in usd should have been assigned an id from 1 to X on import
+        USDImporter.ImportFile importPath
+        local prim001 = $prim001
+ 
+        local matId1 = polyop.getFaceMatID prim001 1
+        assert_equal matId1 1
+            
+        local matId2 = polyop.getFaceMatID prim001 2
+        assert_equal matId2 12
+
+        local matId3 = polyop.getFaceMatID prim001 3
+        assert_equal matId3 2   
+            
+        local matId4 = polyop.getFaceMatID prim001 4
+        assert_equal matId4 3
+    ),
+    
+    function test_subset_material_invalid_face_indice = (
+        local importPath = input_prefix + "subset_material_invalid_face_indice_test.usda"
+        local stage = pyUsd.Stage.CreateNew(importPath)
+        
+        add_pyramid_to_stage &stage false undefined
+        
+        local pyramidPrim = stage.GetPrimAtPath(pyramidPrimPath)
+        local bindingAPI = pyShade.MaterialBindingAPI(pyramidPrim)
+        local subsets = #()
+        for i = 0 to 4 do (
+            -- Add invalid value in the indices array
+            indices = pyVt.IntArray(#(i, 23383283, -23383283))
+            subsetName = "_" + ((i+1) as string) + "_"
+            subset = bindingAPI.CreateMaterialBindSubset subsetName indices
+            append subsets subset
+        )
+        (stage.GetRootLayer()).Save()
+        
+        USDImporter.ImportFile importPath   
+        
+        local prim001 = $prim001
+        
+        for i = 1 to 5 do (
+            mtlId = polyop.getFaceMatID prim001 i
+            assert_equal mtlId i
+        )
+    ),
+    
+    function test_import_file_with_only_one_mat_id = (
+        local importPath = input_prefix + "test_import_file_with_only_one_mat_id_test.usda"
+        -- Populate usd scene file
+        local stage = pyUsd.Stage.CreateNew(importPath)
+        
+        add_pyramid_to_stage &stage false undefined
+        
+        local pyramidPrim = stage.GetPrimAtPath(pyramidPrimPath)
+        pyramidPrim.SetCustomDataByKey "3dsmax:matId" 12
+        
+        -- Import file
+        USDImporter.ImportFile importPath
+
+        local prim001 = $prim001
+        for i = 1 to 5 do (
+            mtlId = polyop.getFaceMatID prim001 i
+            assert_equal mtlId 12
+        )
+        
+        -- If the same material ID is used accross the mesh, the importer should
+        -- not have created a multi-material.
+        assert_undefined prim001.material message:"A multimaterial should not have been created if a single material Id is used."
+    ),
+    
+    function teardown = (
+    ),
+
+    tests = #(test_import_material_id, test_import_file_with_no_material_id, test_subset_material_default_color, test_import_material_id_from_custom_data, test_subset_material_invalid_face_indice, test_import_file_with_only_one_mat_id)
+)
+
+runUsdTestFixture import_material_id_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_material_test.ms b/src/Tests/Integration/import_material_test.ms
new file mode 100644
index 0000000..99c37cd
--- /dev/null
+++ b/src/Tests/Integration/import_material_test.ms
@@ -0,0 +1,92 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyShade = python.import("pxr.UsdShade")
+pysdf = python.import("pxr.Sdf")
+
+input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_MATERIAL_TEST_"
+deleteTestFiles(input_prefix + "*.*")
+
+struct import_material_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_no_node_created_for_material_and_shader_prim = 
+    (
+        local importOptions = USDImporter.CreateOptions()
+        local filepath = input_prefix + "test_no_node_created_for_material_and_shader_prim.usda"
+        local stage = pyUsd.Stage.CreateNew(filepath)
+        local materialsPrim = stage.DefinePrim "/Materials"
+        local materialPrim = pyShade.Material.Define stage  "/Materials/Material__25"
+        local shaderPrim = pyShade.Shader.Define stage "/Materials/Material__25/Material__25"
+        (stage.GetRootLayer()).Save()
+
+        USDImporter.ImportFile filepath importOptions:importOptions
+
+        assert_not_equal $Materials undefined
+        assert_equal undefined $Materials/Material__25 
+        assert_equal undefined $Materials/Material__25/UsdPreviewSurface
+    ),
+
+    function test_material_import_pymxs_file = 
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import import_material_test"
+        python.Execute "reload(import_material_test)"
+        mat_imp_test = python.import("import_material_test")
+        results = mat_imp_test.run_tests()
+
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_no_node_created_for_material_and_shader_prim,
+        test_material_import_pymxs_file
+    )
+)
+
+runUsdTestFixture import_material_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_material_test.py b/src/Tests/Integration/import_material_test.py
new file mode 100644
index 0000000..9ff2944
--- /dev/null
+++ b/src/Tests/Integration/import_material_test.py
@@ -0,0 +1,744 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import pymxs
+from pymxs import runtime as RT
+
+import unittest
+import sys
+import os
+import json
+import glob
+
+from pxr import Kind, Sdf, Usd, UsdGeom, UsdShade, Vt
+#import shaderReader
+import usd_test_helpers
+
+conversion_test_file_location = RT.symbolicPaths.getPathValue("$userTools")
+
+class TestMaterialImport(unittest.TestCase):
+
+    def setUp(self):
+        RT.resetMaxFile(RT.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("IMPORT_MATERIAL_PYMXS_TEST_")
+        usd_test_helpers.load_usd_plugins()
+
+        self.stage = Usd.Stage.CreateInMemory()
+        UsdGeom.SetStageUpAxis(self.stage, UsdGeom.Tokens.y)
+
+        self.root = UsdGeom.Xform.Define(self.stage, "/root")
+        Usd.ModelAPI(self.root).SetKind(Kind.Tokens.component)
+        self.import_options = RT.USDImporter.CreateOptions()
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+
+    def tearDown(self) -> None:
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+
+    def test_usd_preview_surface_values_to_physical_material(self):
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        roughness_value = 0.4
+        metallic_value = 0.12
+        diffuseColor_value = (111.0, 222.0, 111.0)
+        opacity_value = 0.77
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(roughness_value)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(metallic_value)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).Set((diffuseColor_value[0]/255.0, diffuseColor_value[1]/255.0, diffuseColor_value[2]/255.0))
+        pbrShader.CreateInput("opacity", Sdf.ValueTypeNames.Float).Set(opacity_value)
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+        test_name = "test_usd_preview_surface_values_to_physical_material"
+        test_usd_file_path = "{0}{1}.usda".format(self.output_prefix, test_name)
+        self.import_options.LogPath = "{0}{1}_LOG.txt".format(self.output_prefix, test_name)
+        self.import_options.LogLevel = RT.Name("warn")
+
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "physicalMaterial"
+        RT.USDImporter.ImportFile(test_usd_file_path, importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+        self.assertEqual(RT.ClassOf(max_material), RT.PhysicalMaterial)
+        self.assertEqual(max_material.name, "billboardMat")
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.roughness, roughness_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.metalness, metallic_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.Base_Color.R, max_material.Base_Color.G, max_material.Base_Color.B), diffuseColor_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.Transparency, 1 - opacity_value)
+
+
+    def test_usd_preview_surface_values_to_pbr_metal_rough(self):
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        roughness_value = 0.4
+        metallic_value = 0.12
+        diffuseColor_value = (111.0, 222.0, 111.0)
+        emissiveColor_value = (123.0, 124.0, 125.0)
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(roughness_value)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(metallic_value)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).Set((diffuseColor_value[0]/255.0, diffuseColor_value[1]/255.0, diffuseColor_value[2]/255.0))
+        pbrShader.CreateInput("emissiveColor", Sdf.ValueTypeNames.Color3f).Set((emissiveColor_value[0]/255.0, emissiveColor_value[1]/255.0, emissiveColor_value[2]/255.0))
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_values_to_pbr_metal_rough.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "pbrMetalRough"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.PBRMetalRough)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.roughness, roughness_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.metalness, metallic_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.basecolor.R, max_material.basecolor.G, max_material.basecolor.B), diffuseColor_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.emit_Color.R, max_material.emit_Color.G, max_material.emit_Color.B), emissiveColor_value)
+
+
+    def test_usd_preview_surface_values_to_max_usd_preview_surface(self):
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        roughness_value = 0.4
+        metallic_value = 0.12
+        diffuseColor_value = (111.0, 222.0, 111.0)
+        emissiveColor_value = (123.0, 124.0, 125.0)
+        specularColor_value = (44.0, 22.0, 123.0)
+        opacity_value = 0.77
+        clearcoat_value = 0.543
+        clearcoatRoughness_value = 0.213
+        ior_value = 1.2
+        opacityThreshold_value = 0.44
+        occlusion_value = 0.85
+        displacement_value = 0.53
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(roughness_value)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(metallic_value)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).Set((diffuseColor_value[0]/255.0, diffuseColor_value[1]/255.0, diffuseColor_value[2]/255.0))
+        pbrShader.CreateInput("emissiveColor", Sdf.ValueTypeNames.Color3f).Set((emissiveColor_value[0]/255.0, emissiveColor_value[1]/255.0, emissiveColor_value[2]/255.0))
+        pbrShader.CreateInput("specularColor", Sdf.ValueTypeNames.Color3f).Set((specularColor_value[0]/255.0, specularColor_value[1]/255.0, specularColor_value[2]/255.0))
+        pbrShader.CreateInput("opacity", Sdf.ValueTypeNames.Float).Set(opacity_value)
+        pbrShader.CreateInput("clearcoat", Sdf.ValueTypeNames.Float).Set(clearcoat_value)
+        pbrShader.CreateInput("clearcoatRoughness", Sdf.ValueTypeNames.Float).Set(clearcoatRoughness_value)
+        pbrShader.CreateInput("ior", Sdf.ValueTypeNames.Float).Set(ior_value)
+        pbrShader.CreateInput("opacityThreshold", Sdf.ValueTypeNames.Float).Set(opacityThreshold_value)
+        pbrShader.CreateInput("occlusion", Sdf.ValueTypeNames.Float).Set(occlusion_value)
+        pbrShader.CreateInput("displacement", Sdf.ValueTypeNames.Float).Set(displacement_value)
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_values_to_max_usd_preview_surface.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.MaxUsdPreviewSurface)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.roughness, roughness_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.metallic, metallic_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.diffuseColor.R, max_material.diffuseColor.G, max_material.diffuseColor.B), diffuseColor_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.emissiveColor.R, max_material.emissiveColor.G, max_material.emissiveColor.B), emissiveColor_value)
+
+        with self.subTest():
+            self.assertEqual((max_material.specularColor.R, max_material.specularColor.G, max_material.specularColor.B), specularColor_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.opacity, opacity_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.clearcoat, clearcoat_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.clearcoatRoughness, clearcoatRoughness_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.ior, ior_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.opacityThreshold, opacityThreshold_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.occlusion, occlusion_value)
+
+        with self.subTest():
+            self.assertAlmostEqual(max_material.displacement, displacement_value)
+
+
+    def test_full_geomsubset_to_submat(self):
+        pyramid = UsdGeom.Mesh.Define(self.stage, "/root/pyramid")
+        pyramid.CreatePointsAttr([(-10, 0, -10), (10, 0, -10), (-10, 0, 10), (10, 0, 10), (0, 20, 0)])
+        pyramid.CreateFaceVertexCountsAttr([3, 3, 3, 3, 4])
+        pyramid.CreateFaceVertexIndicesAttr([0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2])
+        pyramidBindingAPI = UsdShade.MaterialBindingAPI(pyramid)
+
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(0.4)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(0.0)
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        for i in range(0, 5):
+            indices = Vt.IntArray([i])
+            subset_name = "_sub_{0}".format(i)
+            geom_subset = pyramidBindingAPI.CreateMaterialBindSubset(subset_name, indices)
+            UsdShade.MaterialBindingAPI(geom_subset.GetPrim()).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_full_geomsubset_to_submat.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+        self.assertEqual(RT.ClassOf(RT.sceneMaterials[0]), RT.Multimaterial)
+        self.assertEqual(len(RT.sceneMaterials[0].names), 5)
+        for i in range(0, 5):
+            subset_name = "_sub_{0}".format(i)
+            self.assertEqual(RT.sceneMaterials[0].names[i], subset_name)
+            self.assertEqual(RT.sceneMaterials[0][i].name, "billboardMat")
+            self.assertEqual(RT.ClassOf(RT.sceneMaterials[0][i]), RT.MaxUsdPreviewSurface)
+            self.assertAlmostEqual(RT.sceneMaterials[0][i].roughness, 0.4)
+            self.assertAlmostEqual(RT.sceneMaterials[0][i].metallic, 0.0)
+
+    def test_incomplete_geomsubset_to_submat(self):
+        pyramid = UsdGeom.Mesh.Define(self.stage, "/root/pyramid")
+        pyramid.CreatePointsAttr([(-10, 0, -10), (10, 0, -10), (-10, 0, 10), (10, 0, 10), (0, 20, 0)])
+        pyramid.CreateFaceVertexCountsAttr([3, 3, 3, 3, 4])
+        pyramid.CreateFaceVertexIndicesAttr([0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2])
+        pyramidBindingAPI = UsdShade.MaterialBindingAPI(pyramid)
+
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(0.4)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(0.0)
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        for i in range(0, 5):
+            indices = Vt.IntArray([i])
+            subset_name = "_sub_{0}".format(i)
+            geom_subset = pyramidBindingAPI.CreateMaterialBindSubset(subset_name, indices)
+            if i > 0:
+                UsdShade.MaterialBindingAPI(geom_subset.GetPrim()).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_full_geomsubset_to_submat.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+        self.assertEqual(RT.ClassOf(RT.sceneMaterials[0]), RT.Multimaterial)
+        self.assertEqual(len(RT.sceneMaterials[0].names), 5)
+        for i in range(0, 5):
+            subset_name = "_sub_{0}".format(i)
+            self.assertEqual(RT.sceneMaterials[0].names[i], subset_name)
+            if i == 0:
+                self.assertEqual(RT.sceneMaterials[0][i].name, "displayColor")
+                self.assertEqual(RT.ClassOf(RT.sceneMaterials[0][i]), RT.PhysicalMaterial) # default mat
+            else:
+                self.assertEqual(RT.sceneMaterials[0][i].name, "billboardMat")
+                self.assertEqual(RT.ClassOf(RT.sceneMaterials[0][i]), RT.MaxUsdPreviewSurface)
+                self.assertAlmostEqual(RT.sceneMaterials[0][i].roughness, 0.4)
+                self.assertAlmostEqual(RT.sceneMaterials[0][i].metallic, 0.0)
+
+    def test_single_geomsubset_to_submat(self):
+        pyramid = UsdGeom.Mesh.Define(self.stage, "/root/pyramid")
+        pyramid.CreatePointsAttr([(-10, 0, -10), (10, 0, -10), (-10, 0, 10), (10, 0, 10), (0, 20, 0)])
+        pyramid.CreateFaceVertexCountsAttr([3, 3, 3, 3, 4])
+        pyramid.CreateFaceVertexIndicesAttr([0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2])
+        pyramidBindingAPI = UsdShade.MaterialBindingAPI(pyramid)
+
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Float).Set(0.4)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Float).Set(0.0)
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        indices = Vt.IntArray([2])
+        subset_name = "_sub_{0}".format(2)
+        geom_subset = pyramidBindingAPI.CreateMaterialBindSubset(subset_name, indices)
+        UsdShade.MaterialBindingAPI(geom_subset.GetPrim()).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_single_geomsubset_to_submat.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+        self.assertEqual(RT.ClassOf(RT.sceneMaterials[0]), RT.Multimaterial)
+        self.assertEqual(RT.sceneMaterials[0].numsubs, 1)
+        self.assertEqual(RT.sceneMaterials[0].names[0], subset_name)
+        self.assertEqual(RT.sceneMaterials[0][0].name, "billboardMat")
+        self.assertEqual(RT.ClassOf(RT.sceneMaterials[0][0]), RT.MaxUsdPreviewSurface)
+        self.assertAlmostEqual(RT.sceneMaterials[0][0].roughness, 0.4)
+        self.assertAlmostEqual(RT.sceneMaterials[0][0].metallic, 0.0)
+
+
+    def test_usd_preview_surface_bitmaps_to_physical_material(self):
+        test_bitmap_path = os.path.join(os.path.dirname(__file__), "USDLogoDocs.png")
+
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        stReader = UsdShade.Shader.Define(self.stage, '/TexModel/boardMat/stReader')
+        stReader.CreateIdAttr('UsdPrimvarReader_float2')
+
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        diffuseTextureSampler.CreateInput("st", Sdf.ValueTypeNames.Float2).ConnectToSource(stReader.ConnectableAPI(), 'result')
+        diffuseTextureSampler.CreateOutput('rgb', Sdf.ValueTypeNames.Float3)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(diffuseTextureSampler.ConnectableAPI(), 'rgb')
+
+        stInput = bbmaterial.CreateInput('frame:stPrimvarName', Sdf.ValueTypeNames.Token)
+        stInput.Set('st')
+
+        stReader.CreateInput('varname',Sdf.ValueTypeNames.Token).ConnectToSource(stInput)
+
+        roughnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/roughnessTexture')
+        roughnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Color3f).ConnectToSource(roughnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        metalnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/metalnessTexture')
+        metalnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Color3f).ConnectToSource(metalnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        normalTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/normalTexture')
+        normalTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("normal", Sdf.ValueTypeNames.Color3f).ConnectToSource(normalTextureSampler.ConnectableAPI(), 'rgb')
+
+        occlusionTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/occlusionTexture')
+        occlusionTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("occlusion", Sdf.ValueTypeNames.Color3f).ConnectToSource(occlusionTextureSampler.ConnectableAPI(), 'rgb')
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_bitmaps_to_physical_material.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "physicalMaterial"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.PhysicalMaterial)
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "Base_Color_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.Base_Color_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "roughness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.roughness_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "metalness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.metalness_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "bump_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.bump_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            # ao_map does not exist for max physical material
+            self.assertFalse(hasattr(max_material, "ao_map"))
+
+    def test_usd_preview_surface_bitmaps_to_PBR_metal_rough(self):
+        test_bitmap_path = os.path.join(os.path.dirname(__file__), "USDLogoDocs.png")
+
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        stReader = UsdShade.Shader.Define(self.stage, '/TexModel/boardMat/stReader')
+        stReader.CreateIdAttr('UsdPrimvarReader_float2')
+
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        diffuseTextureSampler.CreateInput("st", Sdf.ValueTypeNames.Float2).ConnectToSource(stReader.ConnectableAPI(), 'result')
+        diffuseTextureSampler.CreateOutput('rgb', Sdf.ValueTypeNames.Float3)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(diffuseTextureSampler.ConnectableAPI(), 'rgb')
+
+        stInput = bbmaterial.CreateInput('frame:stPrimvarName', Sdf.ValueTypeNames.Token)
+        stInput.Set('st')
+
+        stReader.CreateInput('varname',Sdf.ValueTypeNames.Token).ConnectToSource(stInput)
+
+        roughnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/roughnessTexture')
+        roughnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Color3f).ConnectToSource(roughnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        metalnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/metalnessTexture')
+        metalnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Color3f).ConnectToSource(metalnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        normalTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/normalTexture')
+        normalTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("normal", Sdf.ValueTypeNames.Color3f).ConnectToSource(normalTextureSampler.ConnectableAPI(), 'rgb')
+
+        occlusionTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/occlusionTexture')
+        occlusionTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("occlusion", Sdf.ValueTypeNames.Color3f).ConnectToSource(occlusionTextureSampler.ConnectableAPI(), 'rgb')
+
+        emissiveColorTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/emissiveColorTexture')
+        emissiveColorTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("emissiveColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(emissiveColorTextureSampler.ConnectableAPI(), 'rgb')
+
+        opacityTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/opacityTexture')
+        opacityTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("opacity", Sdf.ValueTypeNames.Color3f).ConnectToSource(opacityTextureSampler.ConnectableAPI(), 'rgb')
+
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_bitmaps_to_PBR_metal_rough.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "pbrMetalRough"
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.PBRMetalRough)
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "Base_Color_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.Base_Color_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "roughness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.roughness_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "metalness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.metalness_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "norm_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.norm_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "ao_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.ao_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "emit_color_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.emit_color_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "opacity_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.opacity_map.sourceMap.filename).lower())
+
+    def test_usd_preview_surface_bitmaps_to_max_usd_preview_surface(self):
+        test_bitmap_path = os.path.join(os.path.dirname(__file__), "USDLogoDocs.png")
+
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        stReader = UsdShade.Shader.Define(self.stage, '/TexModel/boardMat/stReader')
+        stReader.CreateIdAttr('UsdPrimvarReader_float2')
+
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        diffuseTextureSampler.CreateInput("st", Sdf.ValueTypeNames.Float2).ConnectToSource(stReader.ConnectableAPI(), 'result')
+        diffuseTextureSampler.CreateOutput('rgb', Sdf.ValueTypeNames.Float3)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(diffuseTextureSampler.ConnectableAPI(), 'rgb')
+
+        stInput = bbmaterial.CreateInput('frame:stPrimvarName', Sdf.ValueTypeNames.Token)
+        stInput.Set('st')
+
+        stReader.CreateInput('varname',Sdf.ValueTypeNames.Token).ConnectToSource(stInput)
+
+        roughnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/roughnessTexture')
+        roughnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("roughness", Sdf.ValueTypeNames.Color3f).ConnectToSource(roughnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        metalnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/metalnessTexture')
+        metalnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("metallic", Sdf.ValueTypeNames.Color3f).ConnectToSource(metalnessTextureSampler.ConnectableAPI(), 'rgb')
+
+        normalTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/normalTexture')
+        normalTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("normal", Sdf.ValueTypeNames.Color3f).ConnectToSource(normalTextureSampler.ConnectableAPI(), 'rgb')
+
+        occlusionTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/occlusionTexture')
+        occlusionTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("occlusion", Sdf.ValueTypeNames.Color3f).ConnectToSource(occlusionTextureSampler.ConnectableAPI(), 'rgb')
+
+        specularColorTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/specularColorTexture')
+        specularColorTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("specularColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(specularColorTextureSampler.ConnectableAPI(), 'rgb')
+
+        emissiveColorTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/emissiveColorTexture')
+        emissiveColorTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("emissiveColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(emissiveColorTextureSampler.ConnectableAPI(), 'rgb')
+
+        opacityTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/opacityTexture')
+        opacityTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("opacity", Sdf.ValueTypeNames.Color3f).ConnectToSource(opacityTextureSampler.ConnectableAPI(), 'rgb')
+
+        displacementTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/displacementTexture')
+        displacementTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("displacement", Sdf.ValueTypeNames.Color3f).ConnectToSource(displacementTextureSampler.ConnectableAPI(), 'rgb')
+
+        iorTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/iorTexture')
+        iorTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("ior", Sdf.ValueTypeNames.Color3f).ConnectToSource(iorTextureSampler.ConnectableAPI(), 'rgb')
+
+        clearcoatTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/clearcoatTexture')
+        clearcoatTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("clearcoat", Sdf.ValueTypeNames.Color3f).ConnectToSource(clearcoatTextureSampler.ConnectableAPI(), 'rgb')
+
+        clearcoatRoughnessTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/clearcoatRoughnessTexture')
+        clearcoatRoughnessTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("clearcoatRoughness", Sdf.ValueTypeNames.Color3f).ConnectToSource(clearcoatRoughnessTextureSampler.ConnectableAPI(), 'rgb')
+
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_bitmaps_to_max_usd_preview_surface.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.MaxUsdPreviewSurface)
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "diffuseColor_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.diffuseColor_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "roughness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.roughness_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "metallic_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.metallic_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "specularColor_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.specularColor_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "normal_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.normal_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "occlusion_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.occlusion_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "emissiveColor_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.emissiveColor_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "opacity_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.opacity_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "displacement_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.displacement_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "ior_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.ior_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "clearcoat_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.clearcoat_map.sourceMap.filename).lower())
+
+        with self.subTest():
+            self.assertTrue(hasattr(max_material, "clearcoatRoughness_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.clearcoatRoughness_map.sourceMap.filename).lower())
+
+    def test_usd_preview_surface_texture_map_from_graph(self):
+        
+        # This test makes sure that we support connected "NodeGraph" in UsdPreviewSurface map inputs.
+        # Instead of connecting a UsdUVTexture directly, we connect a NodeGraph, itself wrapping
+        # another graph (to make sure we look recursively until we find an actual map), which then connects
+        # to the texture.
+        
+        test_bitmap_path = os.path.join(os.path.dirname(__file__), "USDLogoDocs.png")
+
+        cube = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        cubeMaterial = UsdShade.Material.Define(self.stage, '/root/cubeMaterial')
+        shader = UsdShade.Shader.Define(self.stage, '/root/cubeMaterial/UsdPreviewSurface')
+
+        shader.CreateIdAttr("UsdPreviewSurface")
+
+        cubeMaterial.CreateSurfaceOutput().ConnectToSource(shader.ConnectableAPI(), "surface")
+
+        # Create the two node graphs.
+        graph1 = UsdShade.NodeGraph.Define(self.stage, '/root/cubeMaterial/g1')
+        graph2 = UsdShade.NodeGraph.Define(self.stage, '/root/cubeMaterial/g1/g2')
+        
+        stReader = UsdShade.Shader.Define(self.stage, '/root/cubeMaterial/g1/g2/stReader')
+        stReader.CreateIdAttr('UsdPrimvarReader_float2')
+
+        # Create the actual texture map, all the way down the hierarchy.
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/root/cubeMaterial/g1/g2/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        diffuseTextureSampler.CreateInput("st", Sdf.ValueTypeNames.Float2).ConnectToSource(stReader.ConnectableAPI(), 'result')
+        diffuseTextureSampler.CreateOutput('rgb', Sdf.ValueTypeNames.Float3)
+        
+        stInput = cubeMaterial.CreateInput('frame:stPrimvarName', Sdf.ValueTypeNames.Token)
+        stInput.Set('st')
+
+        stReader.CreateInput('varname',Sdf.ValueTypeNames.Token).ConnectToSource(stInput)
+        
+        # Wire up the texture output...
+        # UsdPreviewSurface <-- Graph1:rgb <-- Graph2:rgb <-- diffuseTextureSampler:result
+        graph2_output = graph2.CreateOutput("rgb", Sdf.ValueTypeNames.Float3)
+        graph2_output.ConnectToSource(diffuseTextureSampler.ConnectableAPI(), "result")
+        graph1_output = graph1.CreateOutput("rgb", Sdf.ValueTypeNames.Float3)
+        graph1_output.ConnectToSource(graph2.ConnectableAPI(), "rgb")
+        
+        shader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(graph1.ConnectableAPI(), 'rgb')
+        
+        UsdShade.MaterialBindingAPI(cube).Bind(cubeMaterial)
+
+        test_usd_file_path = self.output_prefix + "test_usd_preview_surface_texture_map_from_graph.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+        
+        reloader = Usd.Stage.Open(test_usd_file_path)
+        reloader.Reload()
+
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        # Make sure the importer resolved the texture correctly from the shader node graph.
+        self.assertEqual(len(RT.sceneMaterials), 1)
+        max_material = RT.sceneMaterials[0]
+        self.assertEqual(RT.ClassOf(max_material), RT.MaxUsdPreviewSurface)
+        self.assertTrue(hasattr(max_material, "diffuseColor_map") and os.path.abspath(test_bitmap_path).lower() == os.path.abspath(max_material.diffuseColor_map.sourceMap.filename).lower())
+
+    def test_unbound_material_import(self):
+        test_bitmap_path = os.path.join(os.path.dirname(__file__), "USDLogoDocs.png")
+
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set(test_bitmap_path)
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(diffuseTextureSampler.ConnectableAPI(), 'rgb')
+
+        test_usd_file_path = self.output_prefix + "test_unbound_material_import.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 0)
+
+    def test_invalid_texture_name_material(self):
+        billboard = UsdGeom.Mesh.Define(self.stage, "/root/billboard")
+        bbmaterial = UsdShade.Material.Define(self.stage, '/root/billboardMat')
+        pbrShader = UsdShade.Shader.Define(self.stage, '/root/billboardMat/PBRShader')
+
+        pbrShader.CreateIdAttr("UsdPreviewSurface")
+
+        bbmaterial.CreateSurfaceOutput().ConnectToSource(pbrShader.ConnectableAPI(), "surface")
+
+        diffuseTextureSampler = UsdShade.Shader.Define(self.stage,'/TexModel/boardMat/diffuseTexture')
+        diffuseTextureSampler.CreateIdAttr('UsdUVTexture')
+        diffuseTextureSampler.CreateInput('file', Sdf.ValueTypeNames.Asset).Set("USDLogoDocsFake.png")
+        pbrShader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(diffuseTextureSampler.ConnectableAPI(), 'rgb')
+
+        UsdShade.MaterialBindingAPI(billboard).Bind(bbmaterial)
+
+        test_usd_file_path = self.output_prefix + "test_invalid_texture_name_material.usda"
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(max_material.diffuseColor_map.sourceMap.filename, '')
+
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestMaterialImport))
+
+if __name__ == '__main__':
+    run_tests()
diff --git a/src/Tests/Integration/import_metadata_test.ms b/src/Tests/Integration/import_metadata_test.ms
new file mode 100644
index 0000000..ff29de1
--- /dev/null
+++ b/src/Tests/Integration/import_metadata_test.ms
@@ -0,0 +1,305 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyKind = python.import("pxr.Kind")
+
+input_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_METADATA_TEST_"
+deleteTestFiles(input_prefix + "*.*")
+
+struct import_metadata_test
+(
+    private 
+    importOptions = USDImporter.CreateOptions(),
+
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function populateUsdStageWithAllMetaDataCombinations usdStage = (
+        local prim = pyUsdGeom.Mesh.Define usdStage "/all"
+        local purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        local model = (pyUsd.ModelAPI(prim))
+        local primObj = (prim.GetPrim())
+        purposeAttr.Set("render")
+        model.SetKind("component")
+        primObj.SetHidden(True)
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/hiddenTrue_purposeProxy"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        purposeAttr.Set("proxy")
+        primObj.SetHidden(True)
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/hiddenTrue"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        primObj.SetHidden(True)
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/kindComponent_hiddenFalse"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        model.SetKind("component")
+        primObj.SetHidden(False)
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/kindGroup"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        model.SetKind("group")
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/none"
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/purposeDefault"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        model.SetKind("component")
+
+        prim = pyUsdGeom.Mesh.Define usdStage "/purposeProxy"
+        purposeAttr = (pyUsdGeom.Imageable(prim)).CreatePurposeAttr()
+        model = (pyUsd.ModelAPI(prim))
+        primObj = (prim.GetPrim())
+        purposeAttr.Set("proxy")
+    ),
+
+    function test_metadata = (
+        -- given
+        testUsdFile = input_prefix + "test_metadata.usda"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        purposeAttr.Set(pyUsdGeom.Tokens.proxy)
+        (pyUsd.ModelAPI(prim001)).SetKind(pyKind.Tokens.component)
+        (prim001.GetPrim()).SetHidden(True)
+        (stage.GetRootLayer()).Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $Prim001
+        assert_true importedPrim.usd_hidden message:"usd_hidden expected to be True"
+        assert_equal "component" importedPrim.usd_kind message:"usd_kind expected to be 'component'"
+        assert_equal "proxy" importedPrim.usd_purpose message:"usd_purpose expected to be 'default'"
+    ),
+
+    function test_empty_values = (
+        -- given
+        testUsdFile = input_prefix + "test_empty_values.usda"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        purposeAttr.Set("")
+        (pyUsd.ModelAPI(prim001)).SetKind("")
+        (stage.GetRootLayer()).Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $Prim001
+        assert_false (isProperty importedPrim #usd_kind) message:"usd_kind should not be defined"
+        assert_false (isProperty importedPrim #usd_purpose) message:"usd_purpose should not be defined"
+    ),
+
+    function test_default_metadata = (
+        -- given
+        testUsdFile = input_prefix + "test_default_metadata.usda"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        (stage.GetRootLayer()).Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $Prim001
+        assert_false (isProperty importedPrim #usd_hidden) message:"usd_hidden should not be defined"
+        assert_false (isProperty importedPrim #usd_kind) message:"usd_kind should not be defined"
+        assert_false (isProperty importedPrim #usd_purpose) message:"usd_purpose should not be defined"
+    ),
+
+    function test_hidden_false = (
+        -- given
+        testUsdFile = input_prefix + "test_hidden_false.usda"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local prim001Obj = prim001.GetPrim()
+        prim001Obj.SetHidden(False)
+        (stage.GetRootLayer()).Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        importedPrim = $Prim001
+        assert_false (isProperty importedPrim #usd_hidden) message:"usd_hidden should not be defined"
+    ),
+
+    function test_non_default_values = (
+        -- given
+        testUsdFile = input_prefix + "test_non_default_values.usda"
+        purposeStr = "blablaP"
+        kindStr = "blebleK"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        local model = (pyUsd.ModelAPI(prim001))
+        local primObj = (prim001.GetPrim())
+        local rootLayer = (stage.GetRootLayer())
+        purposeAttr.Set(purposeStr)
+        model.SetKind(kindStr)
+        rootLayer.Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $Prim001
+        assert_equal kindStr importedPrim.usd_kind
+        assert_equal purposeStr importedPrim.usd_purpose
+    ),
+
+    function test_special_chars = (
+        -- given
+        testUsdFile = input_prefix + "test_special_chars.usda"
+        purposeStr = "~!@#$%^&*()_+{}[]:;'<>?,./'|\\\""
+        kindStr = "~!@#$%^&*()_+{}[]:;'<>?,./'|\\\""
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local purposeAttr = (pyUsdGeom.Imageable(prim001)).CreatePurposeAttr()
+        local model = (pyUsd.ModelAPI(prim001))
+        local primObj = (prim001.GetPrim())
+        local rootLayer = (stage.GetRootLayer())
+        purposeAttr.Set(purposeStr)
+        model.SetKind(kindStr)
+        rootLayer.Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $Prim001
+        assert_equal kindStr importedPrim.usd_kind
+        assert_equal purposeStr importedPrim.usd_purpose
+    ),
+
+    function test_metadata_options = (
+        -- given
+        testUsdFile = input_prefix + "test_metadata_options.usda"
+        local stage = pyUsd.Stage.CreateNew(testUsdFile)
+        local rootLayer = (stage.GetRootLayer())
+        populateUsdStageWithAllMetaDataCombinations stage
+        rootLayer.Save()
+
+        -- when
+        USDImporter.ImportFile testUsdFile
+
+        -- then
+        local importedPrim = $all
+        assert_equal "component" importedPrim.usd_kind
+        assert_equal "render" importedPrim.usd_purpose
+        assert_true importedPrim.usd_hidden
+
+        -- when
+        resetmaxfile #noprompt
+        importOptions.MetaData = #(#kind)
+        USDImporter.ImportFile testUsdFile importOptions:importOptions
+
+        -- then
+        local importedPrim = $all
+        assert_equal "component" importedPrim.usd_kind
+        local groupPrim = $kindGroup
+        assert_equal "group" groupPrim.usd_kind
+        assert_false (isProperty importedPrim #usd_hidden) message:"usd_hidden should not be defined"
+        assert_false (isProperty importedPrim #usd_purpose) message:"usd_purpose should not be defined"
+
+        -- when
+        resetmaxfile #noprompt
+        importOptions.MetaData = #(#kind, #purpose, #kind, #kind, #purpose)
+        USDImporter.ImportFile testUsdFile importOptions:importOptions
+
+        -- then
+        assert_equal 2 importOptions.MetaData.count message:"duplicate values should be ignored"
+        local importedPrim = $all
+        assert_equal "component" importedPrim.usd_kind
+        assert_equal "render" importedPrim.usd_purpose
+        assert_false (isProperty importedPrim #usd_hidden) message:"usd_hidden should not be defined"
+        local groupPrim = $kindGroup
+        assert_equal "group" groupPrim.usd_kind
+        assert_false (isProperty groupPrim #usd_hidden) message:"usd_hidden should not be defined"
+        assert_false (isProperty groupPrim #usd_purpose) message:"usd_purpose should not be defined"
+
+        -- when
+        resetmaxfile #noprompt
+        importOptions.MetaData = #(#hidden)
+        USDImporter.ImportFile testUsdFile importOptions:importOptions
+
+        -- then
+        local importedPrim = $all
+        assert_true importedPrim.usd_hidden
+        assert_false (isProperty importedPrim #usd_kind) message:"usd_kind should not be defined"
+        assert_false (isProperty importedPrim #usd_purpose) message:"usd_purpose should not be defined"
+        local hiddenPrim = $kindComponent_hiddenFalse
+        assert_false (isProperty hiddenPrim #usd_hidden) message:"usd_kind should not be defined"
+        assert_false (isProperty hiddenPrim #usd_kind) message:"usd_kind should not be defined"
+
+        -- when
+        resetmaxfile #noprompt
+        importOptions.MetaData = #()
+        USDImporter.ImportFile testUsdFile importOptions:importOptions
+
+        -- then
+        local importedPrim = $all
+        assert_false (isProperty importedPrim #usd_kind) message:"usd_kind should not be defined"
+        assert_false (isProperty importedPrim #usd_hidden) message:"usd_hidden should not be defined"
+        assert_false (isProperty importedPrim #usd_purpose) message:"usd_purpose should not be defined"
+    ),
+
+    function teardown = (
+
+    ),
+
+    tests = #(test_metadata,
+        test_non_default_values,
+        test_special_chars,
+        test_default_metadata,
+        test_hidden_false,
+        test_empty_values,
+        test_metadata_options
+    )
+)
+
+runUsdTestFixture import_metadata_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_metersPerUnit_test.ms b/src/Tests/Integration/import_metersPerUnit_test.ms
new file mode 100644
index 0000000..fe5dbfe
--- /dev/null
+++ b/src/Tests/Integration/import_metersPerUnit_test.ms
@@ -0,0 +1,467 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+
+input_prefix_main = pathConfig.appendPath (getDir #temp) "/IMPORT_METERSPERUNIT_TEST_"
+input_prefix_ref = pathConfig.appendPath (getDir #temp) "/IMPORT_METERSPERUNIT_TEST_REF_"
+deleteTestFiles(input_prefix_main + "*.*")
+deleteTestFiles(input_prefix_ref + "*.*")
+
+struct import_metersPerUnit_test
+(
+    private
+    initialUnits,
+    initialScale,
+    
+    public
+    function createTestData mainFilePath refFilePath = (
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        Box pos:[0,0,0] width:0.001 length:0.001 height:0.001 name:"Box001"
+        USDExporter.ExportFile refFilePath exportOptions:exportOptions
+        
+        local refStage = pyUsd.Stage.Open refFilePath
+        pyUsdGeom.SetStageMetersPerUnit refStage 0.001
+        (refStage.GetRootLayer()).Save()
+        
+        resetmaxfile #noprompt
+        
+        Box pos:[0,0,0] width:2 length:3 height:1 name:"Box001"
+        Box pos:[0.5,1,1] width:1 length:1 height:1 name:"Box002"
+        USDExporter.ExportFile mainFilePath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(mainFilePath)
+        pyUsdGeom.SetStageMetersPerUnit stage 1
+        
+        local meterCubePrim = stage.OverridePrim "/meterCube"
+        
+        local references = meterCubePrim.GetReferences()
+        references.AddReference refFilePath "/Box001"
+        local refXform = pyUsdGeom.Xformable(meterCubePrim)
+        local translationOp = refXform.AddTranslateOp()
+        translationOp.Set (pyGf.Vec3f -0.5 -1 1)
+        local scaleOp = refXform.AddScaleOp()
+        scaleOp.Set (pyGf.Vec3f 1000 1000 1000)
+        (stage.GetRootLayer()).Save()
+        resetmaxfile #noprompt
+    ),
+    
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        
+        resetmaxfile #noprompt
+    ),
+    
+    function test_millimeter_units  = (
+        local mainFilePath = input_prefix_main + "millimeter_units_test.usda"
+        local refFilePath = input_prefix_ref + "millimeter_units_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Millimeters
+        units.SystemScale = 1
+
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [0,0,0] $Box001.pos
+        assert_point3_equal [-1000,-1500,0] $Box001.vertices[1].pos
+        assert_point3_equal [1000,-1500,0] $Box001.vertices[2].pos
+        assert_point3_equal [-1000,1500,0] $Box001.vertices[3].pos
+        assert_point3_equal [1000,1500,0] $Box001.vertices[4].pos
+        assert_point3_equal [-1000,-1500,1000] $Box001.vertices[5].pos
+        assert_point3_equal [1000,-1500,1000] $Box001.vertices[6].pos
+        assert_point3_equal [-1000,1500,1000] $Box001.vertices[7].pos
+        assert_point3_equal [1000,1500,1000] $Box001.vertices[8].pos
+        
+        assert_point3_equal [500,1000,1000] $Box002.pos
+        assert_point3_equal [0,500,1000] $Box002.vertices[1].pos
+        assert_point3_equal [1000,500,1000] $Box002.vertices[2].pos
+        assert_point3_equal [0,1500,1000] $Box002.vertices[3].pos
+        assert_point3_equal [1000,1500,1000] $Box002.vertices[4].pos
+        assert_point3_equal [0,500,2000] $Box002.vertices[5].pos
+        assert_point3_equal [1000,500,2000] $Box002.vertices[6].pos
+        assert_point3_equal [0,1500,2000] $Box002.vertices[7].pos
+        assert_point3_equal [1000,1500,2000] $Box002.vertices[8].pos
+            
+        assert_point3_equal [-500,-1000,1000] $meterCube.pos
+        assert_point3_equal [-1000,-1500,1000] $meterCube.vertices[1].pos
+        assert_point3_equal [0,-1500,1000] $meterCube.vertices[2].pos
+        assert_point3_equal [-1000,-500,1000] $meterCube.vertices[3].pos
+        assert_point3_equal [0,-500,1000] $meterCube.vertices[4].pos
+        assert_point3_equal [-1000,-1500,2000] $meterCube.vertices[5].pos
+        assert_point3_equal [0,-1500,2000] $meterCube.vertices[6].pos
+        assert_point3_equal [-1000,-500,2000] $meterCube.vertices[7].pos
+        assert_point3_equal [0,-500,2000] $meterCube.vertices[8].pos
+    ),
+
+    function test_centimeter_units = (
+        local mainFilePath = input_prefix_main + "centimeter_units_test.usda"
+        local refFilePath = input_prefix_ref + "centimeter_units_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [0,0,0] $Box001.pos
+        assert_point3_equal [-100,-150,0] $Box001.vertices[1].pos
+        assert_point3_equal [100,-150,0] $Box001.vertices[2].pos
+        assert_point3_equal [-100,150,0] $Box001.vertices[3].pos
+        assert_point3_equal [100,150,0] $Box001.vertices[4].pos
+        assert_point3_equal [-100,-150,100] $Box001.vertices[5].pos
+        assert_point3_equal [100,-150,100] $Box001.vertices[6].pos
+        assert_point3_equal [-100,150,100] $Box001.vertices[7].pos
+        assert_point3_equal [100,150,100] $Box001.vertices[8].pos
+        
+        assert_point3_equal [50,100,100] $Box002.pos
+        assert_point3_equal [0,50,100] $Box002.vertices[1].pos
+        assert_point3_equal [100,50,100] $Box002.vertices[2].pos
+        assert_point3_equal [0,150,100] $Box002.vertices[3].pos
+        assert_point3_equal [100,150,100] $Box002.vertices[4].pos
+        assert_point3_equal [0,50,200] $Box002.vertices[5].pos
+        assert_point3_equal [100,50,200] $Box002.vertices[6].pos
+        assert_point3_equal [0,150,200] $Box002.vertices[7].pos
+        assert_point3_equal [100,150,200] $Box002.vertices[8].pos
+            
+        assert_point3_equal [-50,-100,100] $meterCube.pos
+        assert_point3_equal [-100,-150,100] $meterCube.vertices[1].pos
+        assert_point3_equal [0,-150,100] $meterCube.vertices[2].pos
+        assert_point3_equal [-100,-50,100] $meterCube.vertices[3].pos
+        assert_point3_equal [0,-50,100] $meterCube.vertices[4].pos
+        assert_point3_equal [-100,-150,200] $meterCube.vertices[5].pos
+        assert_point3_equal [0,-150,200] $meterCube.vertices[6].pos
+        assert_point3_equal [-100,-50,200] $meterCube.vertices[7].pos
+        assert_point3_equal [0,-50,200] $meterCube.vertices[8].pos
+    ),
+    
+    function test_meter_units = (
+        local mainFilePath = input_prefix_main + "meter_units_test.usda"
+        local refFilePath = input_prefix_ref + "meter_units_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Meters
+        units.SystemScale = 1
+
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [0,0,0] $Box001.pos
+        assert_point3_equal [-1,-1.5,0] $Box001.vertices[1].pos
+        assert_point3_equal [1,-1.5,0] $Box001.vertices[2].pos
+        assert_point3_equal [-1,1.5,0] $Box001.vertices[3].pos
+        assert_point3_equal [1,1.5,0] $Box001.vertices[4].pos
+        assert_point3_equal [-1,-1.5,1] $Box001.vertices[5].pos
+        assert_point3_equal [1,-1.5,1] $Box001.vertices[6].pos
+        assert_point3_equal [-1,1.5,1] $Box001.vertices[7].pos
+        assert_point3_equal [1,1.5,1] $Box001.vertices[8].pos
+        
+        assert_point3_equal [0.5,1,1] $Box002.pos
+        assert_point3_equal [0,0.5,1] $Box002.vertices[1].pos
+        assert_point3_equal [1,0.5,1] $Box002.vertices[2].pos
+        assert_point3_equal [0,1.5,1] $Box002.vertices[3].pos
+        assert_point3_equal [1,1.5,1] $Box002.vertices[4].pos
+        assert_point3_equal [0,0.5,2] $Box002.vertices[5].pos
+        assert_point3_equal [1,0.5,2] $Box002.vertices[6].pos
+        assert_point3_equal [0,1.5,2] $Box002.vertices[7].pos
+        assert_point3_equal [1,1.5,2] $Box002.vertices[8].pos
+            
+        assert_point3_equal [-0.5,-1,1] $meterCube.pos
+        assert_point3_equal [-1,-1.5,1] $meterCube.vertices[1].pos
+        assert_point3_equal [0,-1.5,1] $meterCube.vertices[2].pos
+        assert_point3_equal [-1,-0.5,1] $meterCube.vertices[3].pos
+        assert_point3_equal [0,-0.5,1] $meterCube.vertices[4].pos
+        assert_point3_equal [-1,-1.5,2] $meterCube.vertices[5].pos
+        assert_point3_equal [0,-1.5,2] $meterCube.vertices[6].pos
+        assert_point3_equal [-1,-0.5,2] $meterCube.vertices[7].pos
+        assert_point3_equal [0,-0.5,2] $meterCube.vertices[8].pos
+    ),
+    
+    function test_two_meters_units = (
+        local mainFilePath = input_prefix_main + "two_meter_units_test.usda"
+        local refFilePath = input_prefix_ref + "two_meter_units_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Meters
+        units.SystemScale = 2
+
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [0,0,0] $Box001.pos
+        assert_point3_equal [-0.5,-0.75,0] $Box001.vertices[1].pos
+        assert_point3_equal [0.5,-0.75,0] $Box001.vertices[2].pos
+        assert_point3_equal [-0.5,0.75,0] $Box001.vertices[3].pos
+        assert_point3_equal [0.5,0.75,0] $Box001.vertices[4].pos
+        assert_point3_equal [-0.5,-0.75,0.5] $Box001.vertices[5].pos
+        assert_point3_equal [0.5,-0.75,0.5] $Box001.vertices[6].pos
+        assert_point3_equal [-0.5,0.75,0.5] $Box001.vertices[7].pos
+        assert_point3_equal [0.5,0.75,0.5] $Box001.vertices[8].pos
+        
+        assert_point3_equal [0.25,0.5,0.5] $Box002.pos
+        assert_point3_equal [0,0.25,0.5] $Box002.vertices[1].pos
+        assert_point3_equal [0.5,0.25,0.5] $Box002.vertices[2].pos
+        assert_point3_equal [0,0.75,0.5] $Box002.vertices[3].pos
+        assert_point3_equal [0.5,0.75,0.5] $Box002.vertices[4].pos
+        assert_point3_equal [0,0.25,1] $Box002.vertices[5].pos
+        assert_point3_equal [0.5,0.25,1] $Box002.vertices[6].pos
+        assert_point3_equal [0,0.75,1] $Box002.vertices[7].pos
+        assert_point3_equal [0.5,0.75,1] $Box002.vertices[8].pos
+            
+        assert_point3_equal [-0.25,-0.5,0.5] $meterCube.pos
+        assert_point3_equal [-0.5,-0.75,0.5] $meterCube.vertices[1].pos
+        assert_point3_equal [0,-0.75,0.5] $meterCube.vertices[2].pos
+        assert_point3_equal [-0.5,-0.25,0.5] $meterCube.vertices[3].pos
+        assert_point3_equal [0,-0.25,0.5] $meterCube.vertices[4].pos
+        assert_point3_equal [-0.5,-0.75,1] $meterCube.vertices[5].pos
+        assert_point3_equal [0,-0.75,1] $meterCube.vertices[6].pos
+        assert_point3_equal [-0.5,-0.25,1] $meterCube.vertices[7].pos
+        assert_point3_equal [0,-0.25,1] $meterCube.vertices[8].pos
+    ),
+    
+    function test_kilometer_units = (
+        local mainFilePath = input_prefix_main + "kilometer_units_test.usda"
+        local refFilePath = input_prefix_ref + "kilometer_units_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Kilometers
+        units.SystemScale = 1
+
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [0,0,0] $Box001.pos
+        assert_point3_equal [-0.001,-0.0015,0] $Box001.vertices[1].pos
+        assert_point3_equal [0.001,-0.0015,0] $Box001.vertices[2].pos
+        assert_point3_equal [-0.001,0.0015,0] $Box001.vertices[3].pos
+        assert_point3_equal [0.001,0.0015,0] $Box001.vertices[4].pos
+        assert_point3_equal [-0.001,-0.0015,0.001] $Box001.vertices[5].pos
+        assert_point3_equal [0.001,-0.0015,0.001] $Box001.vertices[6].pos
+        assert_point3_equal [-0.001,0.0015,0.001] $Box001.vertices[7].pos
+        assert_point3_equal [0.001,0.0015,0.001] $Box001.vertices[8].pos
+        
+        assert_point3_equal [0.0005,0.001,0.001] $Box002.pos
+        assert_point3_equal [0,0.0005,0.001] $Box002.vertices[1].pos
+        assert_point3_equal [0.001,0.0005,0.001] $Box002.vertices[2].pos
+        assert_point3_equal [0,0.0015,0.001] $Box002.vertices[3].pos
+        assert_point3_equal [0.001,0.0015,0.001] $Box002.vertices[4].pos
+        assert_point3_equal [0,0.0005,0.002] $Box002.vertices[5].pos
+        assert_point3_equal [0.001,0.0005,0.002] $Box002.vertices[6].pos
+        assert_point3_equal [0,0.0015,0.002] $Box002.vertices[7].pos
+        assert_point3_equal [0.001,0.0015,0.002] $Box002.vertices[8].pos
+            
+        assert_point3_equal [-0.0005,-0.001,0.001] $meterCube.pos
+        assert_point3_equal [-0.001,-0.0015,0.001] $meterCube.vertices[1].pos
+        assert_point3_equal [0,-0.0015,0.001] $meterCube.vertices[2].pos
+        assert_point3_equal [-0.001,-0.0005,0.001] $meterCube.vertices[3].pos
+        assert_point3_equal [0,-0.0005,0.001] $meterCube.vertices[4].pos
+        assert_point3_equal [-0.001,-0.0015,0.002] $meterCube.vertices[5].pos
+        assert_point3_equal [0,-0.0015,0.002] $meterCube.vertices[6].pos
+        assert_point3_equal [-0.001,-0.0005,0.002] $meterCube.vertices[7].pos
+        assert_point3_equal [0,-0.0005,0.002] $meterCube.vertices[8].pos
+    ),
+    
+    function test_orginal_content_do_not_get_scaled = (
+        local mainFilePath = input_prefix_main + "orginal_content_do_not_get_scaled_test.usda"
+        local refFilePath = input_prefix_ref + "orginal_content_do_not_get_scaled_ref_test.usda"
+        createTestData mainFilePath refFilePath
+
+        --given
+        units.SystemType = #Kilometers
+        units.SystemScale = 1
+        
+        Sphere radius:10 pos:[1,2,3] isSelected:true name:"mySphere"
+        
+        --when
+        USDImporter.ImportFile mainFilePath
+            
+        --then
+        assert_point3_equal [1,2,3] $mySphere.pos
+        assert_float_equal 10 $mySphere.radius
+        assert_point3_equal [1,1,1] $mySphere.transform.scale
+    ),
+
+    function test_import_scaled_children_nodes = (
+        local stageFileName = (input_prefix_main + "import_scaled_children_node.usda")
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+
+        box3 = (Box pos:[1,1,1] width:1 length:1 height:1 name:"Box003")
+        box3.rotation = (quat  0 0.707 0 0.707)
+        box3.scale = [2, 2, 2]
+        box4 = (Box pos:[2,2,2] width:1 length:1 height:1 name:"Box004")
+        box4.rotation = (quat  0.3826834 0 0 0.9238795) -- 45 degrees x axis
+        box4.parent = box3
+        
+        USDExporter.ExportFile stageFileName exportOptions:exportOptions
+
+        local stage = pyUsd.Stage.Open(stageFileName)
+        pyUsdGeom.SetStageMetersPerUnit stage 100
+        (stage.GetRootLayer()).Save()
+
+        resetmaxfile #noprompt
+        units.SystemType = #Kilometers
+        units.SystemScale = 1
+        USDImporter.ImportFile stageFileName
+
+        assert_point3_equal [0.2,0,0.282843] $Box004.pos
+        assert_point3_equal [0.15,-0.0353553,0.247488] $Box004.vertices[1].pos
+        assert_point3_equal [0.25,-0.0353553,0.247488] $Box004.vertices[2].pos
+        assert_point3_equal [0.15,0.0353554,0.318198] $Box004.vertices[3].pos
+        assert_point3_equal [0.25,0.0353554,0.318198] $Box004.vertices[4].pos
+        assert_point3_equal [0.15,-0.106066,0.318198] $Box004.vertices[5].pos
+        assert_point3_equal [0.25,-0.106066,0.318198] $Box004.vertices[6].pos
+        assert_point3_equal [0.15,-0.0353553,0.388909] $Box004.vertices[7].pos
+        assert_point3_equal [0.25,-0.0353553,0.388909] $Box004.vertices[8].pos
+
+        resetmaxfile #noprompt
+        units.SystemType = #Meters
+        units.SystemScale = 2
+        USDImporter.ImportFile stageFileName
+
+        assert_point3_equal [100,1.14441e-05,141.421] $Box004.pos
+        assert_point3_equal [75,-17.6777,123.744] $Box004.vertices[1].pos
+        assert_point3_equal [125,-17.6777,123.744] $Box004.vertices[2].pos
+        assert_point3_equal [75,17.6777,159.099] $Box004.vertices[3].pos
+        assert_point3_equal [125,17.6777,159.099] $Box004.vertices[4].pos
+        assert_point3_equal [75,-53.033,159.099] $Box004.vertices[5].pos
+        assert_point3_equal [125,-53.033,159.099] $Box004.vertices[6].pos
+        assert_point3_equal [75,-17.6777,194.454] $Box004.vertices[7].pos
+        assert_point3_equal [125,-17.6777,194.454] $Box004.vertices[8].pos
+    ),
+    
+    function test_import_scaled_instances = (
+        local stageFileName = (input_prefix_main + "import_scaled_instances.usda")
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+
+        -- Export the file in meters.
+        units.SystemType = #Meters
+        units.SystemScale = 1       
+        
+        local box1 = (Box pos:[1,0,0] width:1 length:1 height:1 name:"Box1")
+        -- Create an instance
+        local box2 = create_clone box1 #instance "Box2"
+        box2.pos = [10,0,0]
+        
+        USDExporter.ExportFile stageFileName exportOptions:exportOptions
+
+        -- Import in a scene in centimeters.
+        resetmaxfile #noprompt
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+        USDImporter.ImportFile stageFileName
+
+        local box1Import = $Box1.children[1]
+        local box2Import = $Box2.children[1]
+
+        assert_point3_equal [100,0,0] box1Import.pos
+        assert_point3_equal [50,-50,0] box1Import.vertices[1].pos
+        assert_point3_equal [150,-50,0] box1Import.vertices[2].pos
+        assert_point3_equal [50,50,0] box1Import.vertices[3].pos
+        assert_point3_equal [150,50,0] box1Import.vertices[4].pos
+        assert_point3_equal [50,-50,100] box1Import.vertices[5].pos
+        assert_point3_equal [150,-50,100] box1Import.vertices[6].pos
+        assert_point3_equal [50,50,100] box1Import.vertices[7].pos
+        assert_point3_equal [150,50,100]  box1Import.vertices[8].pos
+
+        assert_point3_equal [1000,0,0] box2Import.pos
+        assert_point3_equal [950,-50,000] box2Import.vertices[1].pos
+        assert_point3_equal [1050,-50,0] box2Import.vertices[2].pos
+        assert_point3_equal [950,50,0] box2Import.vertices[3].pos
+        assert_point3_equal [1050,50,0] box2Import.vertices[4].pos
+        assert_point3_equal [950,-50,100] box2Import.vertices[5].pos
+        assert_point3_equal [1050,-50,100] box2Import.vertices[6].pos
+        assert_point3_equal [950,50,100] box2Import.vertices[7].pos
+        assert_point3_equal [1050,50,100] box2Import.vertices[8].pos
+        
+        -- Import in a scene in meters.
+        resetmaxfile #noprompt
+        units.SystemType = #Meters
+        units.SystemScale = 1
+        USDImporter.ImportFile stageFileName
+        
+        local box1Xform = $box1
+        local box2Xform = $box2
+        local box1Geom = $Box1.children[1]
+        local box2Geom = $Box2.children[1]
+
+        assert_point3_equal [1,0,0] box1Xform.pos
+        assert_point3_equal [1,0,0] box1Geom.pos
+        assert_point3_equal [0.5,-0.5,0] box1Geom.vertices[1].pos
+        assert_point3_equal [1.5,-0.5,0] box1Geom.vertices[2].pos
+        assert_point3_equal [0.5,0.5,0] box1Geom.vertices[3].pos
+        assert_point3_equal [1.5,0.5,0] box1Geom.vertices[4].pos
+        assert_point3_equal [0.5,-0.5,1] box1Geom.vertices[5].pos
+        assert_point3_equal [1.5,-0.5,1] box1Geom.vertices[6].pos
+        assert_point3_equal [0.5,0.5,1] box1Geom.vertices[7].pos
+        assert_point3_equal [1.5,0.5,1] box1Geom.vertices[8].pos
+
+        assert_point3_equal [10,0,0] box2Xform.pos
+        assert_point3_equal [10,0,0] box2Geom.pos
+        assert_point3_equal [9.5,-0.5,0] box2Geom.vertices[1].pos
+        assert_point3_equal [10.5,-0.5,0] box2Geom.vertices[2].pos
+        assert_point3_equal [9.5,0.5,0] box2Geom.vertices[3].pos
+        assert_point3_equal [10.5,0.5,0] box2Geom.vertices[4].pos
+        assert_point3_equal [9.5,-0.5,1] box2Geom.vertices[5].pos
+        assert_point3_equal [10.5,-0.5,1] box2Geom.vertices[6].pos
+        assert_point3_equal [9.5,0.5,1] box2Geom.vertices[7].pos
+        assert_point3_equal [10.5,0.5,1] box2Geom.vertices[8].pos
+    ), 
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(test_millimeter_units, 
+        test_centimeter_units,
+        test_meter_units,
+        test_two_meters_units,
+        test_kilometer_units,
+        test_orginal_content_do_not_get_scaled,
+        test_import_scaled_children_nodes,
+        test_import_scaled_instances
+    )
+)
+
+runUsdTestFixture import_metersPerUnit_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_morpher_test.ms b/src/Tests/Integration/import_morpher_test.ms
new file mode 100644
index 0000000..3809529
--- /dev/null
+++ b/src/Tests/Integration/import_morpher_test.ms
@@ -0,0 +1,146 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+testDataDir = getFilenamePath (getThisScriptFilename())
+importMorpherUsdPath = (testDataDir + @"data\morpher_box.usd")
+importFemaleWalkUsdPath = (testDataDir + @"data\usdskel_sample.usdc")
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_MORPHER_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_morpher_test
+(
+    private 
+    importOptions = USDImporter.CreateOptions(),
+    initialUnits = units.SystemType,
+    initialScale = units.SystemScale,
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+    ),
+
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function test_import_morpher = (
+        resetMaxFileAndSetupUnits()
+        USDImporter.ImportFile importMorpherUsdPath importOptions:importOptions
+
+        local node = $b1
+        local modi = node.modifiers[1]
+        assert_true (iskindof modi Modifier) message: "Top modifier should have been a morpher modifier"
+        assert_equal (WM3_MC_GetName modi 1) "Box0002" message: "Morpher channel was not named correctly"
+        assert_equal (WM3_NumberOfProgressiveMorphs modi 1) 3 message: "Expected 3 progressive morpher in channel"
+
+        local numVertices = meshOp.getNumVerts node.mesh
+        local expectedAt0 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [0,0,100], [0,0,100], [0,0,100], [0,0,100])
+        local expectedAt3 = #()
+        maxver = maxversion()
+        if maxver[1] > 25000 then (  -- 3ds Max 2024 and up
+            expectedAt3 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [-42.1593,-42.1593,100], [42.1593,-42.1593,100], [-42.1593,42.1593,100], [42.1593,42.1593,100])
+        ) else (
+            expectedAt3 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [-49.214,-49.214,100], [49.214,-49.214,100], [-49.214,49.214,100], [49.214,49.214,100])
+        )
+        local expectedAt5 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [-50,-50,100], [50,-50,100], [-50,50,100], [50,50,100])
+        local expectedAt7 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [-57.8125,-57.8125,100], [57.8125,-57.8125,100], [-57.8125,57.8125,100], [57.8125,57.8125,100])
+        local expectedAt10 = #([-50,-50,0], [50,-50,0], [-50,50,0], [50,50,0], [-100,-100,100], [100,-100,100], [-100,100,100], [100,100,100])
+        
+        local errorMessage = "Expected different value at position: "
+        for vert = 1 to numVertices do
+        (
+            assert_point3_equal (meshOp.getVert node.mesh vert) (expectedAt0[vert]) message: (errorMessage + vert as string)
+        )
+
+        slidertime = 3
+        for vert = 1 to numVertices do
+        (
+            assert_point3_equal (meshOp.getVert node.mesh vert) (expectedAt3[vert]) message: (errorMessage + vert as string)
+        )
+
+        slidertime = 5
+        for vert = 1 to numVertices do
+        (
+            assert_point3_equal (meshOp.getVert node.mesh vert) (expectedAt5[vert]) message: (errorMessage + vert as string)
+        )
+
+        slidertime = 7
+        for vert = 1 to numVertices do
+        (
+            assert_point3_equal (meshOp.getVert node.mesh vert) (expectedAt7[vert]) message: (errorMessage + vert as string)
+        )
+
+        slidertime = 10
+        for vert = 1 to numVertices do
+        (
+            assert_point3_equal (meshOp.getVert node.mesh vert) (expectedAt10[vert]) message: (errorMessage + vert as string)
+        )
+    ),
+
+    function test_several_channels = (
+        resetMaxFileAndSetupUnits()
+        USDImporter.ImportFile importFemaleWalkUsdPath importOptions:importOptions
+
+        local n = $Body_sbdv
+        local modi = n.modifiers[2]
+
+        maxver = maxversion()
+        -- A bug that would prevent progressive morphers to be added on channel above 100 was fix on max 2025.1
+        local skipInbetweensOver100 = (maxver[1] < 27000) or ((maxver[1] <= 27000) and (maxver[5] < 1))
+
+        local totalUsedChannels = 342
+        local totalChannels = 400
+
+        assert_equal totalChannels (WM3_NumberOfChannels modi) message: "Didn't create the proper number of channels"
+
+        local expectedNumProgressiveMorpher = #()
+        if skipInbetweensOver100 then
+        (
+            -- on channels above 100, there will only be 1 progressive morpher on max versions before 2025.1
+            expectedNumProgressiveMorpher = #(3, 1, 3, 3, 3, 3, 1, 3, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 3, 1, 3, 1, 3, 3, 3, 3, 3, 3, 1, 1, 3, 3, 1, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 3, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 3, 1, 3, 1, 3, 1, 3, 3, 3, 1, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)
+        )
+        else
+        (
+            expectedNumProgressiveMorpher = #(3 ,1 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,1 ,1 ,1 ,1 ,3 ,3 ,1 ,1 ,1 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,1 ,3 ,3 ,1 ,1 ,1 ,1 ,3 ,3 ,1 ,1 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,3 ,3 ,1 ,1 ,1 ,3 ,3 ,3 ,3 ,1 ,1 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,1 ,1 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,1 ,3 ,1 ,1 ,1 ,1 ,1 ,3 ,3 ,1 ,1 ,3 ,1 ,3 ,1 ,1 ,1 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,1 ,1 ,1 ,3 ,3 ,3 ,1 ,1 ,1 ,3 ,1 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,1 ,1 ,1 ,1 ,1 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,1 ,3 ,1 ,1 ,1 ,3 ,1 ,3 ,1 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,3 ,3 ,1 ,3 ,1 ,3 ,3 ,1 ,1 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,3 ,3 ,1 ,3 ,3 ,3 ,1 ,1 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,1 ,3 ,3 ,3 ,3 ,1 ,3 ,1 ,1 ,3 ,3 ,3)
+        )
+        
+        for c = 1 to totalUsedChannels do
+        (
+            assert_equal (WM3_NumberOfProgressiveMorphs modi c) expectedNumProgressiveMorpher[c] message: ("Wrong number of progressive morpher for channel " + (c as string))
+        )
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_import_morpher,
+        test_several_channels
+    )
+)
+
+runUsdTestFixture import_morpher_test (getThisScriptFilename())
diff --git a/src/Tests/Integration/import_options_test.ms b/src/Tests/Integration/import_options_test.ms
new file mode 100644
index 0000000..995e8c1
--- /dev/null
+++ b/src/Tests/Integration/import_options_test.ms
@@ -0,0 +1,426 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_OPTIONS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_options_test
+(
+    private 
+    importOptions = USDImporter.CreateOptions(),
+    initialUnits,
+    initialScale,
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+        importOptions.TimeMode = #AllRange
+    ),
+    
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function test_ui_options_accessors = 
+    (
+         -- Make sure options created are properly set by default
+        local importOptions = USDImporter.CreateOptions()
+
+        assert_equal importOptions.StageMask.count 1 message:"The StageMask property was not properly initialized."
+        assert_equal importOptions.StageMask[1] "/" message:"The StageMask property was not property initialized."
+        assert_float_equal 0.0 importOptions.StartTimeCode message:"The TimeCode property was not properly initialized."
+        assert_float_equal 0.0 importOptions.EndTimeCode message:"The TimeCode property was not properly initialized."
+        assert_equal #allRange importOptions.TimeMode message:"The TimeMode property was not properly initialized"
+        assert_equal #LoadAll importOptions.InitialLoadSet message:"The InitialLoadSet property was not properly initialized."
+        assert_equal ((GetDir #temp) + "\\MaxUsdImport.log") importOptions.LogPath message:"The LogPath property was not properly initialized."
+        assert_equal importOptions.LogLevel #off message:"The LogLevel property was not properly initialized."
+        assert_equal importOptions.ImportUnmappedPrimvars true message:"The ImportUnmappedPrimvars property was not properly initialized."
+        assert_true (importOptions.Materials()) message:"The Materials property was not properly initialized to true (default)"
+        assert_equal "none" importOptions.PreferredMaterial message:"The PreferredMaterial property was not properly initialized."
+        assert_equal 1 importOptions.ShadingModes.count message:"The ShadingModes property was not properly initialized."
+        assert_equal "useRegistry" importOptions.ShadingModes[1][1] message:"The ShadingModes property was not properly initialized with expected 'mode'."
+        assert_equal "UsdPreviewSurface" importOptions.ShadingModes[1][2] message:"The ShadingModes property was not properly initialized with expected 'materialConversion'."
+
+        -- Set them all to non-default values
+        importOptions.StageMask = #("/foo")
+        importOptions.StartTimeCode = 10.0
+        importOptions.EndTimeCode = 12.0
+        importOptions.TimeMode = #customRange
+        importOptions.InitialLoadSet = #loadNone
+        importOptions.LogLevel = #info
+        importOptions.LogPath = (output_prefix + "log_path.txt")
+        importOptions.ImportUnmappedPrimvars = false
+        importOptions.PreferredMaterial = "MaxUsdPreviewSurface"
+
+        -- Setting a ShadingMode to 'none' inside an array should set only 'none' as the ShadingModes
+        importOptions.ShadingModes = #(#("useRegistry", "MaterialX"), #("none", "VRayMaterial"))
+        assert_equal 1 importOptions.ShadingModes.count message:"The ShadingModes property was not properly set back."
+        assert_equal "none" importOptions.ShadingModes[1][1] message:"The ShadingModes property was not properly back to 'none'."
+        assert_false (importOptions.Materials()) message:"The Materials property was not properly initialized to false"
+
+        -- Setting multiple ShadingModes with 'none' mode will not pose any issues
+        importOptions.ShadingModes = #(#("useRegistry", "MaterialX"), #("useRegistry", "VRayMaterial"))
+        assert_equal 2 importOptions.ShadingModes.count message:"The ShadingModes property was not properly set to multiple modes."
+        assert_true (importOptions.Materials()) message:"The Materials property was not properly initialized to true"
+
+        -- Test the UI options setter
+        USDImporter.UIOptions = importOptions
+
+        -- The new global options should have been updated
+        uiImportOptions = USDImporter.UIOptions
+
+        assert_equal uiImportOptions.StageMask[1] "/foo" message:"The StageMask property was not properly set to \"/foo\"."
+        assert_float_equal 10.0 uiImportOptions.StartTimeCode message:"The StartTimeCode property was not properly set to 10.0."
+        assert_float_equal 12.0 uiImportOptions.EndTimeCode message:"The EndTimeCode property was not properly set to 12.0."
+        assert_equal #customRange uiImportOptions.TimeMode message:"The TimeMode property was not properly set to #customRange"
+        assert_equal #loadNone uiImportOptions.InitialLoadSet message:"The InitialLoadSet property was not properly set to #LoadNone."
+        assert_equal (output_prefix + "log_path.txt") uiImportOptions.LogPath message:"The LogPath property was not properly set."
+        assert_equal uiImportOptions.LogLevel #info message:"The LogLevel property was not property set to #info."
+        assert_false uiImportOptions.ImportUnmappedPrimvars message:"The ImportUnmappedPrimvars property was not properly set to false."
+        assert_true (uiImportOptions.Materials()) message:"The Materials property was not properly set to true"
+        assert_equal "MaxUsdPreviewSurface" uiImportOptions.PreferredMaterial message:"The PreferredMaterial property was not properly set."
+        assert_equal 2 uiImportOptions.ShadingModes.count message:"The ShadingModes property was not properly set."
+        assert_equal "useRegistry" uiImportOptions.ShadingModes[1][1] message:"The ShadingModes property was not properly set."
+        assert_equal "MaterialX" uiImportOptions.ShadingModes[1][2] message:"The ShadingModes property was not properly set."
+        assert_equal "useRegistry" uiImportOptions.ShadingModes[2][1] message:"The ShadingModes property was not properly set."
+        assert_equal "VRayMaterial" uiImportOptions.ShadingModes[2][2] message:"The ShadingModes property was not properly set."
+
+        -- Reset & test
+        uiImportOptions.Reset()
+
+        assert_equal uiImportOptions.StageMask.count 1 message:"The StageMask property was not properly reset."
+        assert_equal uiImportOptions.StageMask[1] "/" message:"The StageMask property was not properly reset."
+        assert_equal 0.0 uiImportOptions.StartTimeCode message:"The StartTimeCode property was not properly reset."
+        assert_equal 0.0 uiImportOptions.EndTimeCode message:"The EndTimeCode property was not properly reset."
+        assert_equal #allRange uiImportOptions.TimeMode message:"The TimeMode property was not properly initialized"
+        assert_equal #LoadAll uiImportOptions.InitialLoadSet message:"The InitialLoadSet property was not properly reset."
+        assert_equal ((GetDir #temp) + "\\MaxUsdImport.log") uiImportOptions.LogPath message:"The LogPath property was not properly reset."
+        assert_equal uiImportOptions.LogLevel #off message:"The LogLevel property was not properly reset."
+        assert_true uiImportOptions.ImportUnmappedPrimvars message:"The ImportUnmappedPrimvars property was not properly reset."
+        assert_true (uiImportOptions.Materials()) message:"The Materials property was not properly reset"
+        assert_equal "none" uiImportOptions.PreferredMaterial message:"The PreferredMaterial property was not properly reset."
+        assert_equal 1 uiImportOptions.ShadingModes.count message:"The ShadingModes property was not properly reset."
+        assert_equal "useRegistry" uiImportOptions.ShadingModes[1][1] message:"The ShadingModes property was not properly reseted with expected 'mode'."
+        assert_equal "UsdPreviewSurface" uiImportOptions.ShadingModes[1][2] message:"The ShadingModes property was not properly reseted with expected 'materialConversion'."
+    ),
+
+    function test_stage_mask_option = (
+        local stagePath = (output_prefix + "masked.usda")
+        local stage = pyUsd.Stage.CreateNew(stagePath)
+        local fooPrim = pyUsdGeom.Xform.Define stage "/foo"
+        local barPrim = pyUsdGeom.Xform.Define stage "/foo/bar"
+        local bazPrim = pyUsdGeom.Xform.Define stage "/baz"
+        local buzzPrim = pyUsdGeom.Xform.Define stage "/foo/buzz"
+        (stage.GetRootLayer()).Save()
+        
+        -- Test default, no mask.
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        local missingNodeMessage = "Missing an node with the given stage mask."
+        local unfilteredNode = "The node not filtered out as expected by the stage mask."
+        assert_defined (getNodeByName "foo") message:missingNodeMessage
+        assert_defined (getNodeByName "bar") message:missingNodeMessage
+        assert_defined (getNodeByName "baz") message:missingNodeMessage
+        assert_defined (getNodeByName "buzz") message:missingNodeMessage
+        
+        -- Test Applying a single mask path.
+        resetMaxFileAndSetupUnits()
+        importOptions.StageMask = #("/foo/bar")
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        assert_defined (getNodeByName "foo") message:missingNodeMessage
+        assert_defined (getNodeByName "bar") message:missingNodeMessage
+        assert_undefined (getNodeByName "baz") message:unfilteredNode
+        assert_undefined (getNodeByName "buzz") message:unfilteredNode
+            
+        -- Test applying a multiple mask path.
+        resetMaxFileAndSetupUnits()
+        importOptions.StageMask = #("/foo/bar", "/baz")
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        assert_defined (getNodeByName "foo") message:missingNodeMessage
+        assert_defined (getNodeByName "bar") message:missingNodeMessage
+        assert_defined (getNodeByName "baz") message:missingNodeMessage
+        assert_undefined (getNodeByName "buzz") message:unfilteredNode
+        
+        -- Test attempting to set an invalid path throws.
+        local errorMessage = "No exception was thrown when setting invalid USD path as stage mask."
+        
+        -- Completely wrong path.
+        local exceptionThrown = false
+        try (
+            importOptions.StageMask = #("#&$")
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+
+        -- Valid prim path, but not absolute
+        local exceptionThrown = false
+        try (
+            importOptions.StageMask = #("Foo/bar")
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+        
+        -- Absolute path, but to a property, not a prim.
+        local exceptionThrown = false
+        try (
+            importOptions.StageMask = #("/Foo.prop")
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:errorMessage
+
+    ),
+
+    function test_time_code_options = (
+        local stagePath = (output_prefix + "timeCode.usda");
+        local stage = pyUsd.Stage.CreateNew(stagePath)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        stage.SetStartTimeCode(0)
+        stage.SetEndTimeCode(10)
+        -- Create a sphere with an animated transform.
+        -- Node moves from (0,0,2) to (0,0,10).
+        local fooPrim = pyUsdGeom.Sphere.Define stage "/foo"
+        local translateOp = fooPrim.AddTranslateOp()
+        translateOp.Set (pyGf.Vec3f 0 0 1) -- Default timecode
+        translateOp.Set (pyGf.Vec3f 0 0 2) 0 -- time 0
+        translateOp.Set (pyGf.Vec3f 0 0 10) 10 -- time 10
+
+        (stage.GetRootLayer()).Save()
+
+        local timeCodeErrorMsg = "Incorrect node position for time mode "
+
+        -- Now with the start timecode : 0
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #startTime
+        USDImporter.ImportFile stagePath importOptions:importOptions
+
+        foo = getNodeByName "foo"
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+
+        -- Time code 5 is half-way. (10-2)/2 + 2 = 6
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = 5
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo"
+        assert_equal 6 foo.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+
+        -- Now with the end timecode : 10
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = 10
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo" 
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+        
+        -- Now with a timecode < start 
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = -10
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo" 
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+        
+        -- Now with a timecode > end
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = 99
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo" 
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+
+         -- Now with #starttime
+         resetMaxFileAndSetupUnits()
+         importOptions.TimeMode = #startTime
+         USDImporter.ImportFile stagePath importOptions:importOptions
+         foo = getNodeByName "foo" 
+         assert_equal 2 foo.position.z message:(timeCodeErrorMsg + "#startTime")
+
+        -- Now with #endtime
+        resetMaxFileAndSetupUnits()
+        importOptions.TimeMode = #endTime
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo" 
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg + "#endTime")
+
+        -- Now with #allRange, testing from start frame (0) to last frame (13)
+        resetMaxFileAndSetupUnits()
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        foo = getNodeByName "foo" 
+        sliderTime = 0
+        assert_equal 2 foo.position.z message:(timeCodeErrorMsg + "#allRange")
+        sliderTime = 13 -- last frame is actually 12.5 due to the fps difference
+        assert_equal 10 foo.position.z message:(timeCodeErrorMsg + "#allRange")
+    ),
+    
+    function test_initial_loading_set_option = (
+        -- Setup payload.
+        local payloadPath = (output_prefix + "payload.usda")
+        local stage = pyUsd.Stage.CreateNew(payloadPath)
+        local fooPrim = pyUsdGeom.Xform.Define stage "/foo"
+        local barPrim = pyUsdGeom.Xform.Define stage "/foo/bar"
+        pyUsd.Stage.SetDefaultPrim stage (fooPrim.GetPrim())
+        (stage.GetRootLayer()).Save()
+        -- Setup host for the payload.
+        local hostPath = (output_prefix + "host.usda")
+        stage = pyUsd.Stage.CreateNew(hostPath)
+        local bazPrim = pyUsdGeom.Xform.Define stage "/baz"
+        ((bazPrim.GetPrim()).GetPayloads()).AddPayload(payloadPath)
+        (stage.GetRootLayer()).Save()
+        
+        -- #loadNone -> The payload should not be imported.
+        importOptions.InitialLoadSet = #loadNone
+        USDImporter.ImportFile hostPath importOptions:importOptions
+        local barNode = getNodeByName "bar"
+        assert_undefined  barNode message:"The payload was imported even though #loadNone was chosen as loading set."
+        
+        -- #loadAll -> The payload should be imported.
+        resetMaxFileAndSetupUnits()
+        importOptions.InitialLoadSet = #loadAll
+        USDImporter.ImportFile hostPath importOptions:importOptions
+        local barNode = getNodeByName "bar"
+        assert_defined  barNode message:"The payload was not imported even though #loadAll was chosen as loading set."
+        
+        -- Test that invalid InitialLoadingSet values are rejected.
+        try (
+            local importOptions = USDImporter.CreateOptions()
+            importOptions.InitialLoadSet = 10
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid InitialLoadingSet should have thrown an exception."            
+    ),
+    
+    function test_log_options = (
+        -- Test no log.
+        local logPath = (output_prefix + "log_path_test.log")
+        -- Make sure the log doesnt currently exist.
+        deleteFile logPath
+        
+        importOptions.LogPath = logPath
+        assert_equal logPath importOptions.LogPath
+        importOptions.LogLevel = #off
+        assert_equal #off importOptions.LogLevel
+        
+        -- Create a usd file to import...
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        local exportPath = (output_prefix + "teapot.usda")
+        teapot()
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        -- Import it, make sure no log was created.
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        assert_equal 0 (getfiles logPath).count
+        
+        local levels = #(#info, #warn, #error)
+        -- For other levels, a log should be created.
+        for level in levels do (
+            -- Log should now be created.
+            importOptions.LogLevel = level
+            assert_equal importOptions.LogLevel level
+            USDImporter.ImportFile exportPath importOptions:importOptions
+            assert_not_equal 0 (getfiles logPath).count
+            local logSize = getfileSize logPath            
+            if level == #info then (
+                assert_not_equal 0 logSize message:"#info log should not be empty."
+            )
+            else (
+                assert_equal 0 logSize message:((level as string) + " log should be empty.")
+            )
+            deleteFile logPath
+        )
+        
+        try (
+            -- Test that a bad path throws an error.
+            importOptions.LogPath = "<not valid!>"
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown
+
+        -- Test that invalid log levels are rejected.
+        try (
+            local importOptions = USDImporter.CreateOptions()
+            importOptions.LogLevel = 10
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set an invalid LogLevel should have thrown an exception."
+    ),
+
+    -- Small test to validate the maxscript interface, more testing done in python.
+    -- See options_serialization_test.py
+    function test_Serialize = (
+        local importOptions = USDImporter.CreateOptions()
+        importOptions.EndTimeCode = 12.0
+        
+        jsonStr = importOptions.Serialize()
+        
+        loadedOptions = USDImporter.CreateOptionsFromJson(jsonStr)
+        assert_float_equal 12.0 loadedOptions.EndTimeCode message:"The EndTimeCode property was not properly set to 12.0."
+    ),
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_ui_options_accessors,
+            test_stage_mask_option,
+            test_time_code_options,
+            test_initial_loading_set_option,
+            test_log_options,
+            test_Serialize
+        )
+)
+
+runUsdTestFixture import_options_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_pivot_test.ms b/src/Tests/Integration/import_pivot_test.ms
new file mode 100644
index 0000000..d98beaa
--- /dev/null
+++ b/src/Tests/Integration/import_pivot_test.ms
@@ -0,0 +1,116 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+struct import_pivot_test
+(
+    private
+    initialUnits,
+    initialScale,
+    
+    public
+    
+    function reset = (
+        resetmaxfile #noprompt
+        units.SystemType = #meters
+        units.SystemScale = 1
+    ),    
+    
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        reset()
+    ),
+        
+    function test_import_pivot  = (
+        
+        -- Create a simple stage to test with...add it to the cache.
+        local stage = pyUsd.Stage.CreateInMemory()        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        stageCache.Insert(stage)
+        local stageId = (stageCache.GetId(stage)).ToLongInt()
+        
+        pyUsdGeom.SetStageMetersPerUnit stage 1
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        local pyramidPrim = pyUsdGeom.Mesh.Define stage "/pyramid"
+        local points = #((pyGf.Vec3f -10 0 -10), (pyGf.Vec3f 10 0 -10), (pyGf.Vec3f -10 0 10), (pyGf.Vec3f 10 0 10), (pyGf.Vec3f 0 20 0))
+        local vertexCount = #(3,3,3,3,4)
+        local vertexIndices = #(0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2)
+        pyramidPrim.CreatePointsAttr(points)
+        pyramidPrim.CreateFaceVertexCountsAttr(vertexCount)
+        pyramidPrim.CreateFaceVertexIndicesAttr(vertexIndices)
+                    
+        -- No pivot op, objectOffsetPos remains empty.
+        local fooOp = pyramidPrim.AddRotateXYZOp pyUsdGeom.XformOp.PrecisionDouble "foo" false
+        fooOp.Set (pyGf.Vec3f 10 20 30)
+        local barOp = pyramidPrim.AddTranslateOp pyUsdGeom.XformOp.PrecisionDouble "bar" false
+        barOp.Set (pyGf.Vec3f 1 1 1)
+            
+        USDImporter.ImportFromCache stageId
+    
+        foo = getNodeByName "pyramid"
+        assert_equal [0, 0, 0] foo.objectOffsetPos
+
+        reset()    
+            
+        -- Pivot defined, but it has no equivalent !inverse! op, can't be used as offset as it wouldnt be inherited by children.
+        local pivotOp = pyramidPrim.AddTranslateOp pyUsdGeom.XformOp.PrecisionDouble "pivot" false
+        pivotOp.Set (pyGf.Vec3f 0 0 10) 
+        USDImporter.ImportFromCache stageId
+            
+        foo = getNodeByName "pyramid"
+        assert_equal [0, 0, 0] foo.objectOffsetPos
+    
+        reset()
+        
+        -- Now with an !inverse! op defined, the typical case.
+        local pivotInverseOp = pyramidPrim.AddTranslateOp pyUsdGeom.XformOp.PrecisionDouble "pivot" true
+        USDImporter.ImportFromCache stageId
+        foo = getNodeByName "pyramid"
+        assert_equal [0, 0, -10] foo.objectOffsetPos
+        xRotationZup = (foo.rotation as EulerAngles).x
+        
+        reset()
+
+        -- Make sure it still works if the stage's up axis isn't Z.
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.y
+        USDImporter.ImportFromCache stageId
+        foo = getNodeByName "pyramid"
+        assert_equal [0, 0, -10] foo.objectOffsetPos
+        -- Expect an additional 90 degree rotation around X when source is Y up.
+        xRotationYup = (foo.rotation as EulerAngles).x
+        assert_float_equal -90.0f (xRotationYup - xRotationZup)
+    ),
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(test_import_pivot)
+)
+
+runUsdTestFixture import_pivot_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_primvar_test.ms b/src/Tests/Integration/import_primvar_test.ms
new file mode 100644
index 0000000..0359f36
--- /dev/null
+++ b/src/Tests/Integration/import_primvar_test.ms
@@ -0,0 +1,507 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pySdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_PRIMVAR_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_primvar_test
+(  
+    private 
+    importOptions = USDImporter.CreateOptions(),
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+    
+    -- Make sure that defaults are properly reset after a call to SetPrimvarChannelMappingDefaults()
+    function test_set_default_primvar_channels = (
+        importOptions.SetPrimvarChannelMapping "displayOpacity" undefined
+        importOptions.SetPrimvarChannelMapping "vertexColor" undefined
+        importOptions.SetPrimvarChannelMapping "mapShading" undefined
+        importOptions.SetPrimvarChannelMapping "st" undefined
+        for i = 1 to 99 do 
+        (
+            local primvar = "map" + i as string
+            importOptions.SetPrimvarChannelMapping primvar undefined
+        )
+                
+        -- Reset to defaults 
+        importOptions.SetPrimvarChannelMappingDefaults()
+        
+        -- Now make sure the defaults were properly reset.        
+        assert_equal -2 (importOptions.GetPrimvarChannel "displayOpacity") message:"The displayOpacity mapping was not properly reset."
+        assert_equal -1 (importOptions.GetPrimvarChannel "mapShading") message:"The mapShading mapping was not properly reset."
+        assert_equal 0 (importOptions.GetPrimvarChannel "vertexColor") message:"The vertexColor mapping was not properly reset"
+        -- Other mapped channels.
+        for i = 1 to 99 do 
+        (
+            local primvar = "map" + i as string
+            assert_equal i (importOptions.GetPrimvarChannel primvar) message:("Incorrectly reset primvar mapping for :" + primvar)
+        )
+        
+        assert_equal 1 (importOptions.GetPrimvarChannel "st") message:"The st mapping was not properly reset."
+        assert_equal 1 (importOptions.GetPrimvarChannel "uv") message:"The uv mapping was not properly reset."
+        for i = 0 to 98 do 
+        (
+            local primvar = "st" + i as string
+            assert_equal (i+1) (importOptions.GetPrimvarChannel primvar) message:("Incorrectly reset primvar mapping for :" + primvar)
+            primvar = "st_" + i as string
+            assert_equal (i+1) (importOptions.GetPrimvarChannel primvar) message:("Incorrectly reset primvar mapping for :" + primvar)
+            primvar = "uv" + i as string
+            assert_equal (i+1) (importOptions.GetPrimvarChannel primvar) message:("Incorrectly reset primvar mapping for :" + primvar)
+            primvar = "uv_" + i as string
+            assert_equal (i+1) (importOptions.GetPrimvarChannel primvar) message:("Incorrectly reset primvar mapping for :" + primvar)
+        )
+    ),
+    
+    function test_get_primvar_channel = (
+        importOptions.ClearMappedPrimvars()
+        local primvarName = "foo"
+        local primvarChannel = 1
+        importOptions.SetPrimvarChannelMapping primvarName primvarChannel
+        assert_equal primvarChannel (importOptions.GetPrimvarChannel primvarName)
+        
+        unmapped_channel = importOptions.GetPrimvarChannel "noMapping"
+        assert_undefined unmapped_channel message:"Mapping not undefined when attempting to get a mapping which doesn't exist."
+
+        exceptionThrown = false
+        try (
+           importOptions.GetPrimvarChannel "invalid:primvar:name"
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting get mapping using an invalid primvar name."
+
+        exceptionThrown = false
+        try (
+           importOptions.GetPrimvarChannel undefined
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting get mapping using an undefined primvar name."
+    ),
+    
+    -- Test that exceptions are thrown when attempting to configure bad values.
+    function test_set_bad_mapping = (
+        local exceptionThrown = false
+        try (
+            importOptions.SetPrimvarChannelMapping "invalidChannel" -10
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting to configure an invalid channel."
+
+        exceptionThrown = false
+        try (
+           importOptions.SetPrimvarChannelMapping "invalid:primvar:name" 1
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting set an invalid primvar name."
+
+        exceptionThrown = false
+        try (
+           importOptions.SetPrimvarChannelMapping undefined 1
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting set an undefined primvar name."
+    ),
+    
+    -- Test the IsMappedPrimvar() function. It returns true if a primvar is currently mapped to a channel.
+    function test_is_mapped_primvar = (
+        importOptions.SetPrimvarChannelMapping "somePrimvar" 1
+        importOptions.SetPrimvarChannelMapping "someIgnoredPrimvar" undefined
+        assert_true (importOptions.IsMappedPrimvar "somePrimvar")
+        assert_true (importOptions.IsMappedPrimvar "someIgnoredPrimvar")
+        assert_false (importOptions.IsMappedPrimvar "someOtherPrimvar")
+
+        exceptionThrown = false
+        try (
+           importOptions.IsMappedPrimvar undefined
+        )
+        catch 
+        (
+            format "Caught expected exception : %\n" (getCurrentException())
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting set an undefined primvar name."
+    ),
+    
+    -- Test the GetMappedPrimvars() function. It returns the list of all currently mapped primvars.
+    function test_get_mapped_primvars = (
+        importOptions.ClearMappedPrimvars() 
+        importOptions.SetPrimvarChannelMapping "foo" 1
+        importOptions.SetPrimvarChannelMapping "bar" 2
+        importOptions.SetPrimvarChannelMapping "baz" 3
+        local primvars = importOptions.GetMappedPrimvars() 
+        -- The primvar names are returned in alphabetical order...
+        assert_equal "bar" primvars[1]
+        assert_equal "baz" primvars[2]
+        assert_equal "foo" primvars[3]
+    ),
+    
+    -- Test explicitely disabling the import of a primvar.
+    function test_disable_channel_import = (
+         -- Test using channel 2, which typically uninitialized.
+        local channelId = 2
+        local primvarName = "foo"
+        local primName = "box"
+        local b = box()
+        b.name = primName
+        convertToPoly b
+        polyop.defaultMapFaces b channelId
+        
+        local numMapFaces = polyop.getNumMapFaces b channelId
+        local numMapVerts = polyop.getNumMapVerts b channelId
+        
+        exportOptions.SetChannelPrimvarMapping channelId primvarName
+        local exportPath = output_prefix + "disable_channel_import.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- Now reset the max scene and try to reimport the primvar to channel 2.
+        resetMaxFile #noprompt
+        importOptions.ClearMappedPrimvars()
+        importOptions.SetPrimvarChannelMapping primvarName channelId
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        
+        local reimportedBox = getNodeByName primName        
+        assert_true (polyop.getMapsupport reimportedBox channelId)
+        assert_equal numMapFaces (polyop.getNumMapFaces reimportedBox channelId)
+        assert_equal numMapVerts (polyop.getNumMapVerts reimportedBox channelId)
+        
+        -- Now disable the primvar and make sure it is no longer imported.
+        resetMaxFile #noprompt
+        importOptions.SetPrimvarChannelMapping primvarName undefined
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        local reimportedBox = getNodeByName primName
+        assert_false (polyop.getMapsupport reimportedBox channelId)
+
+        exportOptions.Reset()
+    ),
+    
+    -- Make sure that channel "holes" are left empty, i.e. if you import to 1,3,5 - channels 2 and 4 remain uninitialized.
+    function test_import_channel_holes = (
+        local primName = "box"
+        local b = box()
+        b.name = primName
+        convertToPoly b
+        
+        -- No map on 2 & 4.
+        polyop.defaultMapFaces b 1
+        polyop.defaultMapFaces b 3
+        polyop.defaultMapFaces b 5
+        
+        local exportPath = output_prefix + "import_channel_holes.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- Now reset the max scene and try to reimport.
+        resetMaxFile #noprompt
+        importOptions.Reset()
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        local reimportedBox = getNodeByName primName
+        
+        assert_true (polyop.getMapsupport reimportedBox 1)
+        assert_false (polyop.getMapsupport reimportedBox 2)
+        assert_true (polyop.getMapsupport reimportedBox 3)
+        assert_false (polyop.getMapsupport reimportedBox 4)
+        assert_true (polyop.getMapsupport reimportedBox 5)
+        assert_false (polyop.getMapsupport reimportedBox 6)
+    ),
+    
+    -- Test that textcoord type primvars are used as fallback for the main UV channel if it is not
+    -- explicitely mapped.
+    function test_unknown_primvars_imported = (
+        local nodeName = "box"
+        local b = box()
+        b.name = nodeName
+        convertToPoly b
+        polyop.defaultMapFaces b 2
+        exportOptions.SetChannelPrimvarMapping 1 undefined -- disable regular UVs
+        
+        local exportPathFloatPrimvar = output_prefix + "unknown_primvar_floatPrimvar.usda"
+        exportOptions.SetChannelPrimvarMapping 2 "foo" type:#float3Array
+        USDExporter.ExportFile exportPathFloatPrimvar exportOptions:exportOptions
+
+        local exportPathFoo = output_prefix + "unknown_primvar_foo.usda"
+        exportOptions.SetChannelPrimvarMapping 2 "bar" type:#texcoord2fArray
+        USDExporter.ExportFile exportPathFoo exportOptions:exportOptions
+
+        local exportPathBar = output_prefix + "unknown_primvar_bar.usda"
+        exportOptions.SetChannelPrimvarMapping 2 "baz" type:#texcoord3fArray
+        USDExporter.ExportFile exportPathBar exportOptions:exportOptions
+
+        -- A float3Array primvar will not be used as fallback for UVs.
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPathFloatPrimvar importOptions:importOptions
+        local reimportedBox = getNodeByName nodeName
+        assert_false (polyop.getMapsupport reimportedBox 1)
+        
+        -- A Texcoord2fArray primvar will be used as fallback for UVs.
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPathFoo importOptions:importOptions
+        local reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapsupport reimportedBox 1)
+        
+        -- A Texcoord3fArray primvar will be used as fallback for UVs.
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPathBar importOptions:importOptions
+        local reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapsupport reimportedBox 1)
+
+        exportOptions.Reset()
+    ),
+    
+    -- Intergration test, validation is tested in more depth in gtests.
+    function test_primvar_with_invalid_data_not_imported = (
+        local b = box()
+        local nodeName = "box"
+        b.name = nodeName
+        convertToPoly b
+        polyop.defaultMapFaces b 2
+        
+        local primvarName = "foo"
+        exportOptions.SetChannelPrimvarMapping 2 primvarName type:#float3Array
+        
+        local exportPath = output_prefix + "test_primvar_invalid.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- Primvar is valid... it should reimport.
+        importOptions.SetPrimvarChannelMapping primvarName 2
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        
+        local reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapsupport reimportedBox 2)        
+        
+        -- Set invalid indices.
+        stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/" + nodeName)
+        assert_true (pyUsd.Prim.IsValid(boxPrim)) message:"The cube was not properly exported to the usd stage."
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)
+        assert_true (primvarApi.HasPrimvar(primvarName)) message:("Missing primvar on export : " + primvarName)
+        local primvar = primvarApi.GetPrimvar(primvarName)
+        indices = pyVt.IntArray(#(999, 999, 999))
+        primvar.SetIndices(indices)
+        (stage.GetRootLayer()).Save()
+        
+        -- Primvar is now invalid... it should no longer import.
+        importOptions.SetPrimvarChannelMapping primvarName 2
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_false (polyop.getMapsupport reimportedBox 1)
+        
+        exportOptions.Reset()
+    ),
+    
+    -- Test that primvars of dimension 4 are still imported, but with the last value cropped.
+    function test_import_primvar_4 = (
+        local b = box()
+        local nodeName = "box"
+        b.name = nodeName
+        local exportPath = output_prefix + "primvar_4.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/" + nodeName)
+        
+        -- Create the primvar.
+        local primvarName = "foo"        
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)        
+        local foo = primvarApi.CreatePrimvar primvarName pySdf.ValueTypeNames.Float4Array pyUsdGeom.Tokens.constant
+        foo.Set((pyVt.Vec4fArray (pyGf.Vec4f 1 2 3 4)))
+        stage.Save()
+        
+        -- Reimport, make sure the XYZ values are still imported.
+        local targetChannel = 2
+        importOptions.SetPrimvarChannelMapping primvarName targetChannel
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_point3_equal (point3 1.f 2.f 3.f) (polyop.getMapVert reimportedBox targetChannel 1)
+    ),
+    
+    -- Test the ImportUnmappedPrimvars option, which will attempt to load unmapped primvars into 
+    -- the most appropriate channels
+    function test_import_unmapped_primvars = (
+        local b = box()
+        local nodeName = "box"
+        b.name = nodeName
+        local exportPath = output_prefix + "test_import_unmapped_primvars.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        local boxPrim = stage.GetPrimAtPath("/" + nodeName)
+        
+        -- Test with the option turned on.
+        importOptions.ImportUnmappedPrimvars = true
+        -- Create a Float2fArray primvar.
+        local primvarName = "bbb"
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)
+        local foo = primvarApi.CreatePrimvar primvarName pySdf.ValueTypeNames.Float2Array pyUsdGeom.Tokens.constant
+        foo.Set((pyVt.Vec2fArray (pyGf.Vec2f 1 2)))
+        stage.Save()
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapSupport reimportedBox 1) message:"The main UV primvar should have been inferred."
+        assert_point3_equal (point3 1.f 2.f 0.f) (polyop.getMapVert reimportedBox 1 1)  message:"The UVs were not properly set from the inferred UV primvar."
+        
+        -- Test with the option turned off.
+        importOptions.ImportUnmappedPrimvars = false
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_false (polyop.getMapSupport reimportedBox 1) message:"The main UV primvar should not have been inferred with the option turned off."
+        
+        -- Test that alphabetical order is used when multiple primvar can be inferred as main UVs.
+        -- Create a Double2Array primvar.
+        importOptions.ImportUnmappedPrimvars = true
+        local primvarName = "aaa"
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)
+        local foo = primvarApi.CreatePrimvar primvarName pySdf.ValueTypeNames.Double2Array pyUsdGeom.Tokens.constant
+        foo.Set((pyVt.Vec2dArray (pyGf.Vec2d 3 4)))
+        stage.Save()
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapSupport reimportedBox 1) message:"The main UV primvar should have been inferred."
+        assert_point3_equal (point3 3.f 4.f 0.f) (polyop.getMapVert reimportedBox 1 1) message:"The UVs were not properly set from the inferred UV primvar."
+        
+        -- Test that texcoord type primvars are prioritized.
+        -- Create a TexCoord2fArray primvar...
+        local primvarName = "zzz" -- Make sure we dont get selected based on alphabetical order...
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)
+        local foo = primvarApi.CreatePrimvar primvarName pySdf.ValueTypeNames.TexCoord2fArray pyUsdGeom.Tokens.constant
+        foo.Set((pyVt.Vec2fArray (pyGf.Vec2f 5 6)))
+        stage.Save()
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapSupport reimportedBox 1) message:"The main UV primvar should have been inferred."
+        assert_point3_equal (point3 5.f 6.f 0.f) (polyop.getMapVert reimportedBox 1 1) message:"The UVs were not properly set from the inferred UV primvar."
+            
+        -- Make sure TexCoord3fArray primvars are prioritized...
+        local primvarName = "yyy"
+        local primvarApi = pyUsdGeom.PrimvarsAPI(boxPrim)
+        local foo = primvarApi.CreatePrimvar primvarName pySdf.ValueTypeNames.TexCoord3fArray pyUsdGeom.Tokens.constant
+        foo.Set((pyVt.Vec3fArray (pyGf.Vec3f 7 8 9)))
+        stage.Save()
+        importOptions.ImportUnmappedPrimvars = true
+        -- Explicit mapping for the other texcoord primvar to avoid it being picked up first.
+        importOptions.SetPrimvarChannelMapping "zzz" 10
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        assert_true (polyop.getMapSupport reimportedBox 1) message:"The main UV primvar should have been inferred."
+        assert_point3_equal (point3 7.f 8.f 9.f) (polyop.getMapVert reimportedBox 1 1) message:"The UVs were not properly set from the inferred UV primvar."
+            
+        -- Make sure all the unmapped primvars are imported
+        importOptions.ClearMappedPrimvars()
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        reimportedBox = getNodeByName nodeName
+        -- Inferred from type as main uv : TexCoord2fArray
+        assert_point3_equal (point3 5.f 6.f 0.f) (polyop.getMapVert reimportedBox 1 1) message:"Incorrect primvar imported to channel 1."
+        -- Ordered from type : TexCoord3fArray
+        assert_point3_equal (point3 7.f 8.f 9.f) (polyop.getMapVert reimportedBox 2 1) message:"Incorrect primvar imported to channel 2."
+        -- Ordered alphabetically... 
+        --- aaa 
+        assert_point3_equal (point3 3.f 4.f 0.f) (polyop.getMapVert reimportedBox 3 1) message:"Incorrect primvar imported to channel 3."
+        --- bbb
+        assert_point3_equal (point3 1.f 2.f 0.f) (polyop.getMapVert reimportedBox 4 1) message:"Incorrect primvar imported to channel 4."
+    ),
+    
+    function test_channel_info_setup = (
+        local b = box()
+        local nodeName = "box"
+        b.name = nodeName
+        convertToPoly b
+        polyop.defaultMapFaces b 0
+        polyop.defaultMapFaces b 1
+        polyop.defaultMapFaces b 2
+        polyop.defaultMapFaces b 3
+                
+        exportOptions.SetChannelPrimvarMapping 0 "aaa" type:#color3fArray
+        exportOptions.SetChannelPrimvarMapping 1 "bbb" type:#texcoord3fArray
+        exportOptions.SetChannelPrimvarMapping 2 "ccc" type:#float3Array
+        exportOptions.SetChannelPrimvarMapping 3 "ddd" type:#float3Array
+        
+        local exportPath = output_prefix + "test_channel_info_setup.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        resetMaxFile #noprompt
+        USDImporter.ImportFile exportPath importOptions:importOptions
+        
+        local reimportedBox = getNodeByName nodeName
+        
+        -- Unfortunately the ChannelInfo interface only has a method to set the name, 
+        -- not retrieve it... so find it manually from the user properties.
+        assert_equal "aaa" (getUserProp reimportedBox "MapChannel:0")
+        assert_equal "bbb" (getUserProp reimportedBox "MapChannel:1")
+        assert_equal "ccc" (getUserProp reimportedBox "MapChannel:2")
+        assert_equal "ddd" (getUserProp reimportedBox "MapChannel:3")        
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_set_default_primvar_channels,
+        test_get_primvar_channel,
+        test_set_bad_mapping,
+        test_disable_channel_import,
+        test_unknown_primvars_imported,
+        test_is_mapped_primvar, 
+        test_get_mapped_primvars,
+        test_import_channel_holes,
+        test_primvar_with_invalid_data_not_imported,
+        test_import_primvar_4,
+        test_import_unmapped_primvars,
+        test_channel_info_setup)
+)
+
+runUsdTestFixture import_primvar_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_skel_animation_test.ms b/src/Tests/Integration/import_skel_animation_test.ms
new file mode 100644
index 0000000..712842f
--- /dev/null
+++ b/src/Tests/Integration/import_skel_animation_test.ms
@@ -0,0 +1,319 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyUsdSkel = python.import("pxr.UsdSkel")
+pyVt = python.import("pxr.Vt")
+
+testDataDir = getFilenamePath (getThisScriptFilename())
+importArmUsdPath = (testDataDir + @"data\arm.usda")
+importBoneAxisUsdPath = (testDataDir + @"data\usdskel_sample.usdc")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_SKEL_ANIMATION_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_animation_test
+(
+    private 
+    importOptions = USDImporter.CreateOptions(),
+    initialUnits,
+    initialScale,
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+    ),
+
+    function setupStage path startTime endTime = (
+        local stage = pyUsd.Stage.CreateNew(path)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+
+        -- stating later to consider the case of non 0 start time code
+        stage.SetStartTimeCode(startTime)
+        stage.SetEndTimeCode(endTime)
+
+        local skelRootPrim = pyUsdSkel.Root.Define stage "/root"
+        local translateOp = skelRootPrim.AddTranslateOp()
+        local rotateOp = skelRootPrim.AddRotateXYZOp pyUsdGeom.XformOp.PrecisionDouble
+        translateOp.Set (pyGf.Vec3f 0 0 1) -- Default timecode
+        translateOp.Set (pyGf.Vec3f 0 0 2) startTime
+        translateOp.Set (pyGf.Vec3f 0 0 10) endTime
+        rotateOp.Set(pyGf.Vec3f 0 0 0) startTime
+        rotateOp.Set(pyGf.Vec3f 0 0 60) endTime
+
+        (stage.GetRootLayer()).Save()
+
+        return stage
+    ),
+
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function import_skelroot_transforms_test = (
+        local stagePath = (output_prefix + "import_skelroot_anim_test.usda")
+        local stage = setupStage stagePath 10 20
+
+        local timeCodeErrorMsg = "Incorrect node position for slider time "
+
+        -- there shouldn't exist any movement until 12.5 when it starts (timecode 10)
+        slidertime = 12
+        USDImporter.ImportFile stagePath importOptions:importOptions
+
+        local root = getNodeByName "root"
+        assert_equal 2 root.position.z message:(timeCodeErrorMsg + importOptions.StartTimeCode as string)
+        assert_float_equal 0.0 (in coordsys world quatToEuler2 root.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 13 -- upper half of the translated time (12.5)
+        assert_equal 2.2048 root.position.z message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 25 -- (10 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_equal 10 root.position.z message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 root.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+    ),
+
+    function import_skelroot_transforms_up_axis_test = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "up_axis.usda")
+        local stage = setupStage stagePath 10 20
+
+        local timeCodeErrorMsg = "Incorrect node position for time "
+
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.y
+        USDImporter.ImportFile stagePath importOptions:importOptions
+
+        local root = getNodeByName "root"
+
+        slidertime = 10
+        assert_equal -2 root.position.y message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal 0.0 (in coordsys world quatToEuler2 root.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 20 -- upper half of the translated time
+        assert_float_equal -6.8 root.position.y message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 25 -- (20 timeCode / 24 stage timeCodePerSecond) * 30 max FPS = 12.5
+        assert_equal -10 root.position.y message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 root.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+    ),
+
+    function import_skelroot_fps_difference_test = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "skelroot_fps_difference.usda")
+        local stage = setupStage stagePath 10 20
+
+        -- max's slider should be half of the stage's data
+        frameRate = 12
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        timeCodeErrorMsg = "(FPS 12) Incorrect node transform for time "
+
+        rn = getNodeByName "root"
+        slidertime = 0
+        assert_equal 2 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal 0.0 (in coordsys world quatToEuler2 rn.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 6
+        assert_equal 3.6 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 12
+        assert_equal 10 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 rn.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+
+        resetMaxFileAndSetupUnits()
+        -- max's slider should be twice of the stage's data
+        frameRate = 48
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        timeCodeErrorMsg = "(FPS 48) Incorrect node transform for time "
+
+        rn = getNodeByName "root"
+        slidertime = 0
+        assert_equal 2 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal 0.0 (in coordsys world quatToEuler2 rn.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 35
+        assert_equal 8 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        slidertime = 50
+        assert_equal 10 rn.position.z message:(timeCodeErrorMsg + slidertime as string)
+        assert_float_equal -60.0 (in coordsys world quatToEuler2 rn.rotation).z  message:(timeCodeErrorMsg + slidertime as string)
+    ),
+
+    function import_skinned_mesh_test = (
+
+        -- changing the slider shouldn't affect the initial animation positon
+        -- doing this change here intentionally to test for that case
+        slidertime = 11
+        USDImporter.ImportFile importArmUsdPath importOptions:importOptions
+
+        local armNode = getNodeByName "Arm"
+
+        local shoulderNode = getNodeByName "Shoulder"
+        local elbowNode = getNodeByName "Elbow"
+        local handNode = getNodeByName "Hand"
+
+        local skinMod = armNode.modifiers[1]
+
+        assert_true ((ClassOf skinMod) == Skin) message: "Arm node should have a skin modifier"
+        assert_equal 3 (skinOps.GetNumberBones skinMod) message: "Wrong number of bones for skin modifier in Arm node"
+        assert_equal 12 (skinOps.GetNumberVertices skinMod) message: "Wrong number of vertices for skin modifier in Arm node"
+
+        -- GetVertexWeight <skin> <vert integer > <bone integer>
+        -- the <bone integer> argument is the bone # influencing that vertex
+        assert_equal 1 (skinOps.GetVertexWeight skinMod 1 1) message: "Wrong vertex weight for vertex 1 bone 1 in Arm node"
+        assert_equal 1 (skinOps.GetVertexWeight skinMod 5 1) message: "Wrong vertex weight for vertex 1 bone 3 in Arm node"
+        assert_equal 1 (skinOps.GetVertexWeight skinMod 8 1) message: "Wrong vertex weight for vertex 5 bone 1 in Arm node"
+        assert_equal 1 (skinOps.GetVertexWeight skinMod 12 1) message: "Wrong vertex weight for vertex 5 bone 3 in Arm node"
+
+        slidertime = 0
+        assert_float_equal 0.0 (in coordsys world quatToEuler2 elbowNode.rotation).x  message:("(Time: 0) Incorrect elbow x rotation" + importOptions.StartTimeCode as string)
+        slidertime = 10
+        assert_float_equal -69.9991 (in coordsys world quatToEuler2 elbowNode.rotation).x  message:("(Time: 10) Incorrect elbow x rotation" + importOptions.EndTimeCode as string)
+    ),
+
+
+    function import_bone_transforms_test = (
+        USDImporter.ImportFile importBoneAxisUsdPath importOptions:importOptions
+        local headBone = getNodeByName "Head"
+        local rTipBone = getNodeByName "RTip"
+
+        animationrange = (interval 0 200f)
+        slidertime = 126
+
+        assert_point3_equal [-0.501194,6.56602,109.513] (headBone.transform.pos)
+        assert_point3_equal [-0.501194,6.56602,109.513] (headBone.objecttransform.pos)
+        local expectedRotation = (eulerAngles 9.50466 0.451236 0.210077)
+        local expectedObjectRotation = (eulerAngles 87.2694 -80.4847 -87.0968)
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).x) (expectedRotation.x) message:"Unexpected x component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).y) (expectedRotation.y) message:"Unexpected y component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).z) (expectedRotation.z)message:"Unexpected z component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).x) (expectedObjectRotation.x) message:"Unexpected x component in object rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).y) (expectedObjectRotation.y) message:"Unexpected y component in object rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).z) (expectedObjectRotation.z) message:"Unexpected z component in object rotation"
+
+        assert_point3_equal [-2.90865,-24.0769,7.57919] (rTipBone.transform.pos)
+        assert_point3_equal [-2.90865,-24.0769,7.57919] (rTipBone.objecttransform.pos)
+        expectedRotation = quatToEuler2(quat 0 0.568203 -0.822889 0)
+        expectedObjectRotation = quatToEuler2(quat -0.58187 0.40178 -0.58187 -0.40178)
+        assert_float_equal ((quatToEuler2 rTipBone.transform.rotation).x) (expectedRotation.x) message:"Unexpected x component in rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.transform.rotation).y) (expectedRotation.y) message:"Unexpected y component in rotation"
+        assert_float_equal (-(quatToEuler2 rTipBone.transform.rotation).z) (expectedRotation.z) message:"Unexpected z component in rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).x) (expectedObjectRotation.x) message:"Unexpected x component in object rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).y) (expectedObjectRotation.y) message:"Unexpected y component in object rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).z) (expectedObjectRotation.z) message:"Unexpected z component in object rotation"
+
+        slidertime = 162
+        assert_point3_equal [-0.501196,-77.7574,109.513] headBone.transform.pos
+        assert_point3_equal [-0.501196,-77.7574,109.513] headBone.objecttransform.pos
+        expectedRotation = (eulerAngles 9.50466 0.451236 0.210077)
+        expectedObjectRotation = (eulerAngles 87.2694 -80.4847 -87.0968)
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).x) (expectedRotation.x) message:"Unexpected x component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).y) (expectedRotation.y) message:"Unexpected y component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.transform.rotation).z) (expectedRotation.z)message:"Unexpected z component in rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).x) (expectedObjectRotation.x) message:"Unexpected x component in object rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).y) (expectedObjectRotation.y) message:"Unexpected y component in object rotation"
+        assert_float_equal ((quatToEuler2 headBone.objecttransform.rotation).z) (expectedObjectRotation.z) message:"Unexpected z component in object rotation"
+
+        assert_point3_equal [-2.90866,-108.442,7.57919] (rTipBone.transform.pos)
+        assert_point3_equal [-2.90866,-108.442,7.57919] (rTipBone.objecttransform.pos)
+        expectedRotation = (quat 0 0.568203 -0.822889 0)
+        expectedObjectRotation = quatToEuler2(quat -0.58187 0.40178 -0.58187 -0.40178)
+        assert_float_equal ((rTipBone.transform.rotation).x) (expectedRotation.x) message:"Unexpected x component in rotation"
+        assert_float_equal ((rTipBone.transform.rotation).y) (expectedRotation.y) message:"Unexpected y component in rotation"
+        assert_float_equal ((rTipBone.transform.rotation).z) (expectedRotation.z) message:"Unexpected z component in rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).x) (expectedObjectRotation.x) message:"Unexpected x component in object rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).y) (expectedObjectRotation.y) message:"Unexpected y component in object rotation"
+        assert_float_equal ((quatToEuler2 rTipBone.objecttransform.rotation).z) (expectedObjectRotation.z) message:"Unexpected z component in object rotation"
+
+        assert_equal 2 (rTipBone.width)
+        assert_equal 4 (headBone.width)
+        assert_equal 4(headBone.height)
+        assert_equal 2 (rTipBone.height)
+        assert_equal 2 (rTipBone.length)
+        assert_float_equal 8.1526 (headBone.length)
+
+        assert_equal #z (headBone.boneAxis)
+        assert_equal #z (rTipBone.boneAxis)
+        assert_false (headBone.boneAxisFlip)
+        assert_false (rTipBone.boneAxisFlip)
+        assert_true (headBone.boneEnable)
+        assert_true (rTipBone.boneEnable)
+        assert_true (headBone.boneAutoAlign)
+        assert_true (rTipBone.boneAutoAlign)
+        assert_true (headBone.boneFreezeLength)
+        assert_true (rTipBone.boneFreezeLength)
+        assert_equal #none (headBone.boneScaleType)
+        assert_equal #none (rTipBone.boneScaleType)
+    ),
+
+    function import_keyframes_test = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "import_keyframes_test.usda")
+        local stage = setupStage stagePath 0 10
+
+        -- during import the default auto key option is disabled. test if it remains the same as before
+        maxops.autoKeyDefaultKeyOn = true
+
+        USDImporter.ImportFile stagePath importOptions:importOptions
+
+        assert_true (autoKeyDefaultKeyOn) message: "autoKeyDefaultKeyOn was modified during import"
+
+        local rn = getNodeByName "root"
+
+        -- test for the bug where the key at the position 0 is not created when the stage starts at time 0
+        assert_equal 11 (numKeys rn.position.controller) message:"Failed to create some assign some of the required animation keys"
+    ),
+
+    function import_keyframes_test = (
+        resetMaxFileAndSetupUnits()
+
+        local stagePath = (output_prefix + "import_keyframes_test.usda")
+        local stage = setupStage stagePath 0 10
+
+        -- during import the default auto key option is disabled. test if it remains the same as before
+        autoKeyDefaultKeyOn = true
+        USDImporter.ImportFile stagePath importOptions:importOptions
+
+        assert_true (autoKeyDefaultKeyOn) message: "autoKeyDefaultKeyOn was modified during import"
+
+        local rn = getNodeByName "root"
+
+        -- test for the bug where the key at the position 0 is not created when the stage starts at time 0
+        assert_equal 11 (numKeys rn.position.controller) message:"Failed to create some assign some of the required animation keys"
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(import_skelroot_transforms_test,
+        import_skelroot_transforms_up_axis_test,
+        import_skelroot_fps_difference_test,
+        import_skinned_mesh_test,
+        import_bone_transforms_test,
+        import_keyframes_test
+    )
+)
+
+runUsdTestFixture import_animation_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_texture_transform_test.ms b/src/Tests/Integration/import_texture_transform_test.ms
new file mode 100644
index 0000000..1c4f961
--- /dev/null
+++ b/src/Tests/Integration/import_texture_transform_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct import_texture_transform_test
+(
+    private
+    test_python_path,
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+
+    function test_usd_texture_transform_import =
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import import_texture_transform_test"
+        python.Execute "reload(import_texture_transform_test)"
+        mat_imp_test = python.import("import_texture_transform_test")
+        results = mat_imp_test.run_tests()
+
+        processPythonUnittestResults results
+    ),
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+
+    Tests = #(
+        test_usd_texture_transform_import
+    )
+)
+
+runUsdTestFixture import_texture_transform_test (getThisScriptFilename())
diff --git a/src/Tests/Integration/import_texture_transform_test.py b/src/Tests/Integration/import_texture_transform_test.py
new file mode 100644
index 0000000..3710b47
--- /dev/null
+++ b/src/Tests/Integration/import_texture_transform_test.py
@@ -0,0 +1,581 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+import os
+import shutil
+
+from importlib import reload
+from enum import Enum
+
+from pxr import Usd, UsdGeom, UsdShade, Sdf, Kind, Vt
+
+import usd_test_helpers
+import shaderReader
+import pymxs
+
+__author__ = r'Autodesk Inc.'
+__copyright__ = r'Copyright 2021, Autodesk Inc.'
+
+RT = pymxs.runtime
+RT.pluginManager.loadClass(RT.USDImporter)
+
+TEST_DIR = os.path.dirname(__file__)
+TEST_DATA_DIR = os.path.join(TEST_DIR, "data")
+UV_CHECKER_PATH = os.path.join(TEST_DATA_DIR, "uv_checker.png")
+
+
+class TestImportTextureTransform(unittest.TestCase):
+    def setUp(self):
+        RT.resetMaxFile(RT.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("IMPORT_TEXTURE_TRANSFORM_PYMXS_TEST_")
+        usd_test_helpers.load_usd_plugins()
+
+        self.stage = Usd.Stage.CreateInMemory()
+        UsdGeom.SetStageUpAxis(self.stage, UsdGeom.Tokens.y)
+
+        self.import_options = RT.USDImporter.CreateOptions()
+        self.import_options.LogLevel = RT.Name("warn")
+
+        self.create_usd_preview_surface_with_usd_transform_2d()
+
+    # Creates a basic UsdPreviewSurface material and UsdUVTexture shader with
+    # UsdTransform2d transform inputs, attached to a cube mesh
+    def create_usd_preview_surface_with_usd_transform_2d(self):
+        #create material container
+        some_mat = UsdShade.Material.Define(self.stage, '/some_mat')
+
+        # create UsdPreviewSurface material shader
+        some_shader = UsdShade.Shader.Define(self.stage, '/some_mat/UsdPreviewSurface')
+        some_shader.CreateIdAttr("UsdPreviewSurface")
+        some_mat.CreateSurfaceOutput().ConnectToSource(some_shader.ConnectableAPI(), "surface")
+
+
+        # create UsdUVTexture shader texture reader
+        texture_sampler = UsdShade.Shader.Define(self.stage, '/uv_checker_bitmap')
+        texture_sampler.CreateIdAttr("UsdUVTexture")
+        texture_sampler.CreateInput("file", Sdf.ValueTypeNames.Asset).Set(UV_CHECKER_PATH)
+
+        self.wrap_s_input = texture_sampler.CreateInput("wrapS", Sdf.ValueTypeNames.Token)
+        self.wrap_t_input = texture_sampler.CreateInput("wrapT", Sdf.ValueTypeNames.Token)
+
+        texture_sampler.CreateOutput('rgb', Sdf.ValueTypeNames.Float3)
+        some_shader.CreateInput("diffuseColor", Sdf.ValueTypeNames.Color3f).ConnectToSource(texture_sampler.ConnectableAPI(), 'rgb')
+
+        # create UsdPrimvarReader_float2 shader texture reader
+        uv_reader = UsdShade.Shader.Define(self.stage, '/uv_checker_bitmap/PrimvarReader_map1')
+        uv_reader.CreateIdAttr("UsdPrimvarReader_float2")
+
+        input_frame_primvar = some_mat.CreateInput("frame:map1", Sdf.ValueTypeNames.Token)
+        input_frame_primvar.Set('map1')
+        input_varname = uv_reader.CreateInput("varname", Sdf.ValueTypeNames.Token)
+        input_varname.ConnectToSource(input_frame_primvar)
+
+        st_input = texture_sampler.CreateInput("st", Sdf.ValueTypeNames.Float2)
+
+
+        # create UsdTransform2d shader to support texture transforms (offset,translate,rotate)
+        transform_2d_prim = UsdShade.Shader.Define(self.stage, '/uv_checker_bitmap/TextureTransform_map1')
+        transform_2d_prim.CreateIdAttr("UsdTransform2d")
+
+        self.scale_input = transform_2d_prim.CreateInput("scale", Sdf.ValueTypeNames.Float2)
+        self.rotation_input = transform_2d_prim.CreateInput("rotation", Sdf.ValueTypeNames.Float)
+        self.translation_input = transform_2d_prim.CreateInput("translation", Sdf.ValueTypeNames.Float2)
+
+        transform_input = transform_2d_prim.CreateInput("in", Sdf.ValueTypeNames.Float2)
+        transform_input.ConnectToSource(uv_reader.ConnectableAPI(), "result")
+        st_input.ConnectToSource(transform_2d_prim.ConnectableAPI(), "result")
+
+        # create basic cube
+        cubePrim = UsdGeom.Cube.Define(self.stage, '/test_cube')
+
+        cubePrim = UsdGeom.Mesh.Define(self.stage, "/test_cube")
+        cubePrim.CreatePointsAttr([(-12.5, -12.5, 0), (12.5, -12.5, 0), (-12.5, 12.5, 0), (12.5, 12.5, 0), (-12.5, -12.5, 25), (12.5, -12.5, 25), (-12.5, 12.5, 25), (12.5, 12.5, 25)])
+        cubePrim.CreateFaceVertexCountsAttr([4, 4, 4, 4, 4, 4])
+        cubePrim.CreateFaceVertexIndicesAttr([0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6])
+        cubePrim.CreateExtentAttr([(-12.5, -12.5, 0), (12.5, 12.5, 25)])
+        
+        texCoords = UsdGeom.PrimvarsAPI(cubePrim).CreatePrimvar("map1", 
+                                            Sdf.ValueTypeNames.TexCoord2fArray, 
+                                            UsdGeom.Tokens.faceVarying)
+        texCoords.Set([(1, 0), (1, 1), (0, 1), (0, 0), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1), (0, 0), (1, 0), (1, 1), (0, 1)])
+
+        normals = UsdGeom.PrimvarsAPI(cubePrim).CreatePrimvar("normals", Sdf.ValueTypeNames.Float3Array, UsdGeom.Tokens.faceVarying)
+        normals.Set([(0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, -1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, 0, 1), (0, -1, 0), (0, -1, 0), (0, -1, 0), (0, -1, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (1, 0, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (0, 1, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0), (-1, 0, 0)])
+
+        # bind the material to the cube
+        binding = UsdShade.MaterialBindingAPI.Apply(cubePrim.GetPrim()).Bind(some_mat)
+
+    def import_usd_preview_surface_with_usd_transform_2d_transform_test(self,
+                                                                        test_usd_file_name,
+                                                                        scale_usd_value, 
+                                                                        rotation_usd_value, 
+                                                                        translation_usd_value,
+                                                                        wrap_s_usd_value,
+                                                                        wrap_t_usd_value, 
+                                                                        expected_max_offset_value,
+                                                                        expected_max_scale_value,
+                                                                        expected_max_tiling_value,
+                                                                        expected_max_rotate_value,
+                                                                        expected_max_rotaxis_value,
+                                                                        expected_max_rotcenter_value,
+                                                                        expected_max_wrap_mode_value,
+                                                                        expected_warnings = 0):
+        # type: () -> None
+        """Test UsdPreviewSurface with UsdUVTexture texture transform import for the given configuration."""
+
+        # Setup logging.
+        self.import_options.LogPath = "{0}{1}{2}".format(self.output_prefix, test_usd_file_name, ".log")
+        if os.path.exists(self.import_options.LogPath):
+            os.remove(self.import_options.LogPath)
+
+        test_usd_file_path = "{0}{1}{2}".format(self.output_prefix, test_usd_file_name, ".usda")
+
+        if scale_usd_value is not None:
+            self.scale_input.Set(scale_usd_value)
+
+        if rotation_usd_value is not None:
+            self.rotation_input.Set(rotation_usd_value)
+
+        if translation_usd_value is not None:
+            self.translation_input.Set(translation_usd_value)
+
+        if wrap_s_usd_value is not None:
+            self.wrap_s_input.Set(wrap_s_usd_value)
+
+        if wrap_t_usd_value is not None:
+            self.wrap_t_input.Set(wrap_t_usd_value)
+
+        self.stage.GetRootLayer().Export(test_usd_file_path)
+        
+        self.import_options.PreferredMaterial = "maxUsdPreviewSurface"
+
+        maxver = RT.maxversion()
+        if maxver[0] >= 26000:  # 3ds Max 2024 and up
+            shaderReader._material_import_options["texture_target_id"] = "UberBitmap2.osl"
+        else:
+            shaderReader._material_import_options["texture_target_id"] = "UberBitmap.osl"
+
+        RT.USDImporter.ImportFile(test_usd_file_path,importOptions=self.import_options)
+
+        self.assertEqual(len(RT.sceneMaterials), 1)
+        max_material = RT.sceneMaterials[0]
+
+        self.assertEqual(RT.ClassOf(max_material), RT.MaxUsdPreviewSurface)
+
+        self.assertIsNotNone(max_material.diffuseColor_map)
+        diffuseColorSourceMap = max_material.diffuseColor_map.sourceMap
+
+        self.assertEqual(RT.ClassOf(diffuseColorSourceMap), RT.OSLMap)
+        if maxver[0] >= 26000:  # 3ds Max 2024 and up
+            self.assertEqual(diffuseColorSourceMap.OSLShaderName, "UberBitmap2b")
+        else:
+            self.assertEqual(diffuseColorSourceMap.OSLShaderName, "UberBitmap2")
+
+        self.assertAlmostEqual(diffuseColorSourceMap.offset[0], expected_max_offset_value[0], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.offset[1], expected_max_offset_value[1], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.offset[2], expected_max_offset_value[2], places=3)
+
+        self.assertAlmostEqual(diffuseColorSourceMap.scale, expected_max_scale_value, places=3)
+
+        self.assertAlmostEqual(diffuseColorSourceMap.tiling[0], expected_max_tiling_value[0], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.tiling[1], expected_max_tiling_value[1], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.tiling[2], expected_max_tiling_value[2], places=3)
+        
+        self.assertAlmostEqual(diffuseColorSourceMap.Rotate, expected_max_rotate_value, places=3)
+        
+        self.assertAlmostEqual(diffuseColorSourceMap.RotAxis[0], expected_max_rotaxis_value[0], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.RotAxis[1], expected_max_rotaxis_value[1], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.RotAxis[2], expected_max_rotaxis_value[2], places=3)
+
+        self.assertAlmostEqual(diffuseColorSourceMap.RotCenter[0], expected_max_rotcenter_value[0], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.RotCenter[1], expected_max_rotcenter_value[1], places=3)
+        self.assertAlmostEqual(diffuseColorSourceMap.RotCenter[2], expected_max_rotcenter_value[2], places=3)
+
+        self.assertEqual(diffuseColorSourceMap.WrapMode, expected_max_wrap_mode_value)        
+
+        # Finaly, check warnings.
+        log_file_handle = open(self.import_options.LogPath)
+        self.assertEqual(expected_warnings, len(log_file_handle.readlines()))
+        log_file_handle.close()
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_scaling(self):
+        
+        # Test scale
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_scaling",
+            (15.0, 15.0), 
+            0.0, 
+            (0.0, 0.0),
+            None,
+            None, 
+            (0.0, 0.0, 0.0),
+            0.067,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_negative_scaling(self):
+        # Test negative scale
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_negative_scaling",
+            (-15.0, -15.0), 
+            0.0, 
+            (0.0, 0.0),
+            None,
+            None,
+            (0.0, 0.0, 0.0),
+            -0.067,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_non_uniform_scaling(self):
+        # Test non-uniform scale
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_non_uniform_scaling",
+            (15.0, 25.0), 
+            0.0, 
+            (0.0, 0.0), 
+            None,
+            None,
+            (0.0, 0.0, 0.0),
+            1.0,
+            (15.0, 25.0, 0.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_zero_scaling(self):
+        # Test zero value scale
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_zero_scaling",
+            (0.0, 0.0), 
+            0.0, 
+            (0.0, 0.0), 
+            None,
+            None,
+            (float("inf"), float("inf"), 0.0),
+            float("inf"),
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_non_uniform_scaling_with_zero(self):
+        # Test non-uniform scale with zero value
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_non_uniform_scaling_with_zero",
+            (15.0, 0.0), 
+            0.0, 
+            (0.0, 0.0), 
+            None,
+            None,
+            (0.0, float("inf"), 0.0),
+            1.0,
+            (15.0, float("inf"), 0.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_rotation(self):
+        # Test rotation
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_rotation",
+            (1.0, 1.0), 
+            30.0, 
+            (0.0, 0.0), 
+            None,
+            None,
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            30.0,
+            (0.0, 0.0, 1.0),
+            (0.0, 0.0, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_negative_rotation(self):
+        # Test negative rotation
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_negative_rotation",
+            (1.0, 1.0), 
+            -30.0, 
+            (0.0, 0.0),
+            None,
+            None, 
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            -30.0,
+            (0.0, 0.0, 1.0),
+            (0.0, 0.0, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_rotation_with_non_uniform_scale(self):
+        # Test rotation with non-uniform scale
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_rotation_with_non_uniform_scale",
+            (4.0, 2.0), 
+            30.0, 
+            (0.0, 0.0), 
+            None,
+            None,
+            (0.0, 0.0, 0.0),
+            1.0,
+            (4.0, 2.0, 0.0),
+            30.0,
+            (0.0, 0.0, 1.0),
+            (0.0, 0.0, 0.0),
+            "periodic",
+            1)
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_translation(self):
+        # Test translation
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_translation",
+            (1.0, 1.0), 
+            0.0, 
+            (23.4, 11.57), 
+            None,
+            None,
+            (-23.4, -11.57, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_negative_translation(self):
+        # Test negative translation values
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_negative_translation",
+            (1.0, 1.0), 
+            0.0, 
+            (-23.4, -11.57), 
+            None,
+            None,
+            (23.4, 11.57, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_all_transforms(self):
+        # Test all transforms
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_all_transforms",
+            (4.0, 4.0), 
+            30.0, 
+            (23.4, 11.57), 
+            None,
+            None,
+            (-6.512, 0.42, 0.0),
+            0.25,
+            (1.0, 1.0, 1.0),
+            30.0,
+            (0.0, 0.0, 1.0),
+            (0.0, 0.0, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_none_values_on_transforms(self):
+        # Test all transforms
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_none_values_on_transforms",
+            None, 
+            None, 
+            None, 
+            None,
+            None,
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_black(self):
+        # Test black wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_black",
+            None, 
+            None, 
+            None, 
+            "black",
+            "black",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "black")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_clamp(self):
+        # Test clamp wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_clamp",
+            None, 
+            None, 
+            None, 
+            "clamp",
+            "clamp",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "clamp")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_repeat(self):
+        # Test repeat wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_repeat",
+            None, 
+            None, 
+            None, 
+            "repeat",
+            "repeat",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_mirror(self):
+        # Test mirror wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_mirror",
+            None, 
+            None, 
+            None, 
+            "mirror",
+            "mirror",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "mirror")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_useMetadata(self):
+        # Test useMetadata wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_useMetadata",
+            None, 
+            None, 
+            None, 
+            "useMetadata",
+            "useMetadata",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic",
+            1)
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_non_uniform(self):
+        # Test non-uniform wrap mode
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_non_uniform",
+            None, 
+            None, 
+            None, 
+            "black",
+            "mirror",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "periodic",
+            1)
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_only_s(self):
+        # Test only wrapS wrap mode defined
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_only_s",
+            None, 
+            None, 
+            None, 
+            "black",
+            None,
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "black")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_only_t(self):
+        # Test only wrapT wrap mode defined
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_wrap_mode_only_t",
+            None, 
+            None, 
+            None, 
+            None,
+            "black",
+            (0.0, 0.0, 0.0),
+            1.0,
+            (1.0, 1.0, 1.0),
+            0.0,
+            (0.0, 0.0, 1.0),
+            (0.5, 0.5, 0.0),
+            "black")
+
+    def test_usd_preview_surface_texture_to_OSL_ubermap_all_inputs(self):
+        # Test all inputs
+        self.import_usd_preview_surface_with_usd_transform_2d_transform_test(
+            "test_usd_preview_surface_texture_to_OSL_ubermap_all_inputs",
+            (4.0, 4.0), 
+            30.0, 
+            (23.4, 11.57), 
+            "black",
+            "black",
+            (-6.512, 0.42, 0.0),
+            0.25,
+            (1.0, 1.0, 1.0),
+            30.0,
+            (0.0, 0.0, 1.0),
+            (0.0, 0.0, 0.0),
+            "black")
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestImportTextureTransform))
+
+if __name__ == "__main__":
+    RT.clearListener()
+    run_tests()
diff --git a/src/Tests/Integration/import_udim_texture_test.ms b/src/Tests/Integration/import_udim_texture_test.ms
new file mode 100644
index 0000000..cb9f513
--- /dev/null
+++ b/src/Tests/Integration/import_udim_texture_test.ms
@@ -0,0 +1,62 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+
+struct import_udim_texture_test
+(
+
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function test_valid_udim_data_imported = (
+        resetMaxFile #noprompt
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local importPath = (testDataDir + @"data\import_udim_test_data\max-osl-uber-bitmap-udims-plane.usda")
+
+        USDImporter.ImportFile importPath
+
+        importedSceneUberBitmap = sceneMaterials[1].diffusecolor_map.source_map
+        listOfFoundUDIMs = importedSceneUberBitmap.Filename_UDIMList
+
+        -- Based on import_udim_test_data/max-osl-uber-bitmap-udims-plane.usda containing 
+        -- only 1 Material and 1 UsdUVTexture and set it's field "asset inputs:file" set to:
+        --    asset inputs:file = @./data/testUsdImagingGLUsdUdims/texture_<UDIM>.jpg@
+        -- Then looking into `./data/testUsdImagingGLUsdUdims/` seeing that those are the
+        -- correct UDIMS associated to that texture being found and set to our max texture.
+        correctUdimList = "1001 1002 1003 1004 1005 1006 1008 1009 1010 1011 1012 1013"
+        assert_equal listOfFoundUDIMs correctUdimList message:"The Filename_UDIMList property did not match the correct values."
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_valid_udim_data_imported)
+)
+
+runUsdTestFixture import_udim_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/import_up_axis_test.ms b/src/Tests/Integration/import_up_axis_test.ms
new file mode 100644
index 0000000..834a901
--- /dev/null
+++ b/src/Tests/Integration/import_up_axis_test.ms
@@ -0,0 +1,103 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IMPORT_UP_AXIS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct import_up_axis_test
+(
+    private 
+    initialUnits,
+    initialScale,
+    
+    function resetMaxFileAndSetupUnits = 
+    (
+        resetmaxfile #noprompt
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+    ),
+    
+    public
+    function setup =
+    (
+        resetMaxFileAndSetupUnits()
+    ),
+
+    function create_usd_pyramid_file filePath upAxis = (
+        local stage = pyUsd.Stage.CreateNew(filePath)
+        pyUsdGeom.SetStageUpAxis stage upAxis
+        local prim001 = pyUsdGeom.Mesh.Define stage "/Prim001"
+        local points = #((pyGf.Vec3f -10 0 -10), (pyGf.Vec3f 10 0 -10), (pyGf.Vec3f -10 0 10), (pyGf.Vec3f 10 0 10), (pyGf.Vec3f 0 20 0))
+        local vertexCount = #(3,3,3,3,4)
+        local vertexIndices = #(0, 1, 4, 0, 2, 4, 3, 1, 4, 3, 2, 4, 0, 1, 3, 2)
+        prim001.CreatePointsAttr(points)
+        prim001.CreateFaceVertexCountsAttr(vertexCount)
+        prim001.CreateFaceVertexIndicesAttr(vertexIndices)
+        (stage.GetRootLayer()).Save()
+    ),
+    
+    function test_import_y_up_axis = (
+        local importPath = output_prefix + "import_y_up_axis_test.usda"
+        -- Populate usd scene file
+        create_usd_pyramid_file importPath pyUsdGeom.Tokens.y
+            
+        -- Import file
+        USDImporter.ImportFile importPath
+        
+        -- Validate everything is where it should
+        assert_point3_equal [-10, 10, 0] $prim001.vertices[1].pos
+        assert_point3_equal [10, 10, 0] $prim001.vertices[2].pos
+        assert_point3_equal [-10, -10, 0] $prim001.vertices[3].pos
+        assert_point3_equal [10, -10, 0] $prim001.vertices[4].pos
+        assert_point3_equal [0, 0, 20] $prim001.vertices[5].pos
+    ),
+
+    function test_import_z_up_axis = (
+        local importPath = output_prefix + "import_z_up_axis_test.usda"
+        -- Populate usd scene file
+        create_usd_pyramid_file importPath pyUsdGeom.Tokens.z
+        
+        -- Import file
+        USDImporter.ImportFile importPath
+        
+        -- Validate everything is where it should
+        assert_point3_equal [-10, 0, -10] $prim001.vertices[1].pos
+        assert_point3_equal [10, 0, -10] $prim001.vertices[2].pos
+        assert_point3_equal [-10, 0, 10] $prim001.vertices[3].pos
+        assert_point3_equal [10, 0, 10] $prim001.vertices[4].pos
+        assert_point3_equal [0, 20, 0] $prim001.vertices[5].pos
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_import_y_up_axis, test_import_z_up_axis)
+)
+
+runUsdTestFixture import_up_axis_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/io_callback_logging_tests.ms b/src/Tests/Integration/io_callback_logging_tests.ms
new file mode 100644
index 0000000..a9b4586
--- /dev/null
+++ b/src/Tests/Integration/io_callback_logging_tests.ms
@@ -0,0 +1,119 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+outputPrefix = pathConfig.appendPath (getDir #temp) "/IO_CALLBACK_LOGGING_TEST_"
+deleteTestFiles(outputPrefix + "*.*")
+
+struct io_callback_logging_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    infoMessage = "This is an info message.",
+    warningMessage = "This is a warning message.",
+    errorMessage = "This is an error message.",
+    
+    public 
+    function setup =
+    (
+        -- Basic setup
+        resetmaxfile #noprompt
+        
+        -- Populate basic 3ds Max scene with a simple sphere
+        Sphere()
+        
+        chaser_script_registration =
+"import maxUsd\n" +
+"from pymxs import runtime as mxs\n" +
+"class exportChaserLogTest(maxUsd.ExportChaser):\n" +
+"    def __init__(self, factoryContext, *args, **kwargs):\n" +
+"        super(exportChaserLogTest, self).__init__(factoryContext, *args, **kwargs)\n" +
+"\n" +
+"    def PostExport(self):\n" +
+"        mxs.USDExporter.Log(mxs.Name(\"info\"), \"" + infoMessage + "\")\n" +
+"        mxs.USDExporter.Log(mxs.Name(\"warn\"), \"" + warningMessage + "\")\n" +
+"        mxs.USDExporter.Log(mxs.Name(\"error\"), \"" + errorMessage + "\")\n" +
+"        return True\n" +
+"\n" +
+"maxUsd.ExportChaser.Register(exportChaserLogTest, \"logTest\")"
+        python.execute(chaser_script_registration)
+    ),
+
+    function validateLogs logPath logLevel = (
+        if logLevel != #off do
+        (
+            -- Make sure the file can be read
+            local fileStream = openFile logPath
+            assert_defined fileStream message:("Could not open file '" + logPath + "'!")
+            
+            -- Validate file content depending on the log level
+            if logLevel == #info do
+            (
+                assert_defined (skipToString fileStream infoMessage) message:("Could not read line '" + infoMessage + "'!")
+            )
+
+            if logLevel == #info or logLevel == #warn do
+            (
+                assert_defined (skipToString fileStream warningMessage) message:("Could not read line '" + warningMessage + "'!")
+            )
+
+            assert_defined (skipToString fileStream errorMessage) message:("Could not read line '" + errorMessage + "'!")
+
+            -- Close the file
+            close fileStream
+        )
+    ),
+    
+    function export_callback_logging_test = (
+        local usdFile = outputPrefix + "SimpleSphere.usd"
+        
+        -- Register a chaser on export (aka export completed callback)
+        exportOptions.ChaserNames = #("logTest")
+        
+        -- First, test with log level equals to #info, we should find all 3 messages in the MaxUsdExport.log
+        exportOptions.LogLevel = #info
+        USDExporter.ExportFile usdFile exportOptions:exportOptions
+        validateLogs exportOptions.LogPath exportOptions.LogLevel
+        deleteFile exportOptions.LogPath
+
+        -- Second, test with log level equals to #warn, we should find only warning and error messages in the MaxUsdExport.log
+        exportOptions.LogLevel = #warn
+        USDExporter.ExportFile usdFile exportOptions:exportOptions
+        validateLogs exportOptions.LogPath exportOptions.LogLevel
+        deleteFile exportOptions.LogPath
+
+        -- Third, test with log level equals to #error, we should find only error message in the MaxUsdExport.log
+        exportOptions.LogLevel = #error
+        USDExporter.ExportFile usdFile exportOptions:exportOptions
+        validateLogs exportOptions.LogPath exportOptions.LogLevel
+        deleteFile exportOptions.LogPath
+
+        -- Finally, test with log level equals to #off, shouldn't find any messages in the MaxUsdExport.log
+        exportOptions.LogLevel = #off
+        USDExporter.ExportFile usdFile exportOptions:exportOptions
+        validateLogs exportOptions.LogPath exportOptions.LogLevel
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(export_callback_logging_test)
+)
+
+runUsdTestFixture io_callback_logging_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/io_camera_test.ms b/src/Tests/Integration/io_camera_test.ms
new file mode 100644
index 0000000..b77b36b
--- /dev/null
+++ b/src/Tests/Integration/io_camera_test.ms
@@ -0,0 +1,780 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyUsdGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/IO_CAMERA_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct io_camera_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    initialUnits,initialScale,
+    public 
+    function resetMaxAndUnitSetup = (
+        resetmaxfile #noprompt
+        units.SystemType = #Inches
+        units.SystemScale = 1
+    ),
+
+    function setup =
+    (
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetMaxAndUnitSetup()
+    ),
+
+    function usdTimeToFrame usdTime stage = (
+        return usdTime * ((ticksPerFrame as float)/ 4800.f) / stage.GetTimeCodesPerSecond()
+    ),
+    
+    -- Export all instanciable camera types.
+    function export_all_cameras = (
+        local allCameras = #()
+        allCameras = for o in camera.classes where o.creatable collect o
+
+        local expectedCameras = #()
+        for i = 1 to allCameras.count do
+        (
+            -- Align the cameras in a grid for easy visual inspection...
+            local x = (mod i 10) * 100
+            local y = ((i / 10) as integer) * 100
+            local cam = (allCameras[i] height:10 length:10 width:10 pos:[x, y, 0])
+            append expectedCameras cam
+        )
+        
+        local exportPath = output_prefix + "export_all_cameras.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        root = stage.GetPrimAtPath("/")
+        assert_equal expectedCameras.count (root.GetAllChildren()).count message:"Unexpected prim count when exporting all camera types."
+    
+        for i = 1 to expectedCameras.count do (
+            local name = expectedCameras[i].name
+            local objPrim = stage.GetPrimAtPath("/" + pyUsdTf.MakeValidIdentifier(name))
+            assert_true (pyUsd.Prim.IsValid(objPrim)) message:(name + " of class " + ((classOf expectedCameras[i]) as string) + " was not properly exported to a USD camera.")
+            assert_true (objPrim.IsA(pyUsdGeom.Camera)) message:(name + " of class " + ((classOf expectedCameras[i]) as string) + " should have been exported to a Camera type prim.")
+        )
+    ),
+    
+    function test_free_camera_attributes =
+    (
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        local cam = (FreeCamera height:10 length:10 width:10 pos:[100, 100, 0] target:b)
+        
+        -- enable clipping planes
+        cam.clipManually = true
+        cam.near_clip = 10.0f
+        cam.far_clip = 1000.0f
+        
+        -- make sure all params are initialized
+        redrawViews()
+
+        local exportPath = output_prefix + "export_free_camera.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + cam.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        local usdGfCamera = usdCamera.GetCamera()
+
+        assert_equal pyUsdGf.Camera.Perspective usdGfCamera.projection message:"Expected 'projection' type to be 'Perspective'"
+        assert_float 0.0f usdGfCamera.focusDistance message:"Expected 'focusDistance' to be equal to default USD value"
+        
+        -- the FOV value covers the horizontal aperture and focal lenght
+        local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+        assert_float cam.fov usdGfCameraFOV message:"Expected FOV value is not equal to free camera setting"
+        -- clipping plane range
+        local usdGfCameraClipRange = usdGfCamera.clippingRange
+        assert_float cam.near_clip (usdGfCameraClipRange.GetMin()) message:("Expected minimum value for 'clippingRange' to be equal to free camera setting")
+        assert_float cam.far_clip (usdGfCameraClipRange.GetMax()) message:("Expected maximum value for 'clippingRange' to be equal to free camera setting")
+
+        -- keep track of expected values on import 
+        local camFOV = cam.fov
+        local camClipNear = cam.near_clip
+        local camClipFar = cam.far_clip
+            
+        -- now the import test
+        -- Free Camera only define the following attributes
+        --    clippingRange
+        --    focalLength
+        --    horizontalAperture
+        --    projection
+        --    verticalAperture
+        -- all other unspecified attributes will report the Physical Camera defaults
+        resetMaxAndUnitSetup()
+        USDImporter.ImportFile exportPath
+        
+        local importedCamera = $Camera001
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float 160.0f (importedCamera.target_distance) message:"Expected 'focusDistance' to be equal to default free camera setting"
+        assert_float camFOV (importedCamera.fov) message:"Expected FOV value is not equal to free camera setting"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_true (importedCamera.clip_on) message:("The clip range property is defined in the imported USD file - The camera 'clip_on' property must be on")
+        assert_float camClipNear (importedCamera.clip_near) message:("The near clip camera property value is expected to be equal to what it was originally set")
+        assert_float camClipFar (importedCamera.clip_far) message:("The far clip camera property value is expected to be equal to what it was originally set")
+        -- defaults from Physical Camera because USD attributes were not specified otherwise
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float 0.5f (importedCamera.shutter_length_frames) message:("The shutter duration property value is is to the default to physical camera setting")
+        assert_false (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be disabled when value is not defined in the USD file")
+        assert_float 0.0f (importedCamera.shutter_offset_frames) message:("The default shutter offset property value is expected when not specified in the USD file")
+        assert_float 8f (importedCamera.f_number) message:("Expected 'fStop' default value set to '8' when not specified in the USD file")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+    ),
+
+    function test_target_camera_attributes =
+    (
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        local cam = (TargetCamera height:10 length:10 width:10 pos:[100, 100, 0] target:b)
+        
+        -- enable clipping planes
+        cam.clipManually = true
+        cam.near_clip = 10.0f
+        cam.far_clip = 1000.0f
+        
+        -- make sure all params are initialized
+        redrawViews()
+
+        local exportPath = output_prefix + "export_target_camera.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + cam.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        local usdGfCamera = usdCamera.GetCamera()
+
+        assert_equal pyUsdGf.Camera.Perspective usdGfCamera.projection message:"Expected 'projection' type to be 'Perspective'"
+        assert_float cam.targetdistance usdGfCamera.focusDistance message:"Expected 'focusDistance' is not equal to free camera target setting"
+        
+        -- the FOV value covers the horizontal aperture and focal lenght
+        local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+        assert_float cam.fov usdGfCameraFOV message:"Expected FOV value is not equal to free camera setting"
+        -- clipping plane range
+        local usdGfCameraClipRange = usdGfCamera.clippingRange
+        assert_float cam.near_clip (usdGfCameraClipRange.GetMin()) message:("Expected minimum value for 'clippingRange' to be equal to free camera setting")
+        assert_float cam.far_clip (usdGfCameraClipRange.GetMax()) message:("Expected maximum value for 'clippingRange' to be equal to free camera setting")
+
+        -- keep track of expected values on import
+        local camFOV = cam.fov
+        local camTargetDistance = usdGfCamera.focusDistance  -- parameter is coming from USD
+        local camClipNear = cam.near_clip
+        local camClipFar = cam.far_clip
+            
+        -- now the import test
+        -- Target Camera only define the following attributes
+        --    clippingRange
+        --    focalLength
+        --    focusDistance
+        --    horizontalAperture
+        --    projection
+        --    verticalAperture
+        -- all other unspecified attributes will report the Physical Camera defaults
+        resetMaxAndUnitSetup()
+            
+        USDImporter.ImportFile exportPath
+        
+        local importedCamera = $Camera001
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float camTargetDistance (importedCamera.target_distance) message:"Expected 'focusDistance' is not equal to target camera target setting"
+        assert_float camFOV (importedCamera.fov) message:"Expected FOV value is not equal to target camera setting"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_true (importedCamera.clip_on) message:("The clip range property is defined in the imported USD file - The camera 'clip_on' property must be on")
+        assert_float camClipNear (importedCamera.clip_near) message:("The near clip camera property value is expected to be equal to the value it was originally set to")
+        assert_float camClipFar (importedCamera.clip_far) message:("The far clip camera property value is expected to be equal to the value it was originally set to")
+        -- defaults from Physical Camera because USD attributes were not specified otherwise
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float 0.5f (importedCamera.shutter_length_frames) message:("The shutter duration property value is is to the default to physical camera setting")
+        assert_false (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be disabled when value is not defined in the USD file")
+        assert_float 0.0f (importedCamera.shutter_offset_frames) message:("The default shutter offset property value is expected when not specified in the USD file")
+        assert_float 8f (importedCamera.f_number) message:("Expected 'fStop' default value set to '8' when not specified in the USD file")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+    ),
+    
+    function test_default_physical_camera_attributes =
+    (
+        phys_camera = Physical height:10 length:10 width:10
+        -- prevent lens breathing from having an influence on the focal length
+        -- this is the ONLY non-default attribute for the physical camera
+        phys_camera.lens_breathing_amount = 0.0f
+        -- shutter offset is disabled by default
+        -- setting a value different from 0f to this parameter shall not have any influence on USD export default for shutter:open attribute
+        assert_false phys_camera.shutter_offset_enabled message:("Expected not to enable the shutter offset attribute")
+        phys_camera.shutter_offset_frames = 0.2f
+
+        local exportPath = output_prefix + "export_default_physical_camera.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + phys_camera.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        local usdGfCamera = usdCamera.GetCamera()
+
+        assert_equal pyUsdGf.Camera.Perspective usdGfCamera.projection message:"Expected 'projection' type to be 'Perspective'"
+        assert_float phys_camera.target_distance usdGfCamera.focusDistance message:"Expected 'focusDistance' is not equal to physical camera target setting"
+        assert_float phys_camera.focal_length_mm usdGfCamera.focalLength message:"Expected 'focalLength' is not equal to physical camera setting"
+        
+        -- the FOV value covers the horizontal aperture and zoom values
+        local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+        assert_float phys_camera.fov usdGfCameraFOV message:"Expected FOV value is not equal to physical camera setting"
+
+        -- the clipping plane range was not specified nor enabled at the
+        -- physical camera creation, therefor, the default USD camera values
+        -- should be in effect
+        assert_false phys_camera.clip_on message:("Expected physical camera not to enable the clipping planes by default")
+        local usdGfCameraClipRange = usdGfCamera.clippingRange
+        assert_float 1.0f (usdGfCameraClipRange.GetMin()) message:("Expected default minimum value for 'clippingRange' when setting is not explicitly exported")
+        assert_float 1000000f (usdGfCameraClipRange.GetMax()) message:("Expected default maximum value for 'clippingRange' when setting is not explicitly exported")
+
+        -- other verified values from the physical camera
+        assert_float phys_camera.f_number usdGfCamera.fStop message:("'fStop' value is not equal to physical camera setting")
+        local shutterOpenAttr = usdCamera.GetShutterOpenAttr()
+        assert_float 0.0f (shutterOpenAttr.Get()) message:("Default 'shutter:open' value is not 0.0f when physical camera shutter offset if not used")
+        local shutterCloseAttr = usdCamera.GetShutterCloseAttr()
+        assert_float phys_camera.shutter_length_frames (usdTimeToFrame (shutterCloseAttr.Get()) stage) message:("'shutter:close' value is not equal to physical camera setting")
+        local exposureAttr = usdCamera.GetExposureAttr()
+        assert_float phys_camera.exposure_value (exposureAttr.Get()) message:("'exposure' value is not equal to physical camera setting")
+        local horizontalApertureOffsetAttr = usdCamera.GetHorizontalApertureOffsetAttr()
+        assert_float 0f (horizontalApertureOffsetAttr.Get()) message:("Expected default horizontal aperture offset to be at 0.0f when setting is not explicitly exported")
+        local verticalApertureOffsetAttr = usdCamera.GetVerticalApertureOffsetAttr()
+        assert_float 0f (verticalApertureOffsetAttr.Get()) message:("Expected default vertical aperture offset to be at 0.0f when setting is not explicitly exported")
+
+        -- keep track of expected values on import
+        local camFOV = phys_camera.fov
+        local camTargetDistance = usdGfCamera.focusDistance  -- parameter is coming from USD
+            
+        -- now the import test
+        resetMaxAndUnitSetup()
+            
+        USDImporter.ImportFile exportPath
+        
+        local importedCamera = $PhysCamera001
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float camTargetDistance (importedCamera.target_distance) message:"Expected 'focusDistance' is not equal to physical camera setting"
+        assert_float camFOV (importedCamera.fov) message:"Expected FOV value is not equal to physical camera setting"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_false (importedCamera.clip_on) message:("The clip range property is not defined in the imported USD file - The camera 'clip_on' property must be off")
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float 0.5f (importedCamera.shutter_length_frames) message:("The shutter duration property value is not equal to physical camera setting")
+        assert_false (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be disabled when value is not defined in the USD file")
+        assert_float 0.0f (importedCamera.shutter_offset_frames) message:("The default shutter offset property value is expected when not specified in the USD file")
+        assert_float 8f (importedCamera.f_number) message:("Expected 'fStop' default value set to '8' when not specified in the USD file")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+    ),
+
+    function test_physical_camera_attributes =
+    (
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        phys_camera = Physical target:b pos:[0, -45, 25]
+        
+        -- Focus distance
+        -- instead of using the default target distance setting, use the user specified focus
+        phys_camera.specify_focus = 1
+        phys_camera.focus_distance = phys_camera.target_distance + 50.f
+
+        -- shutter offset
+        phys_camera.shutter_length_frames = 0.6f
+        phys_camera.shutter_offset_enabled = true
+        phys_camera.shutter_offset_frames = 0.2f
+
+        -- enable clipping planes
+        phys_camera.clip_on = true
+        phys_camera.clip_near = 10.0f
+        phys_camera.clip_far = 300.f
+
+        -- change zoom factor
+        -- has an impact on FOV
+        phys_camera.zoom_factor = 1.5
+
+        -- fStop
+        phys_camera.f_number = 2.8f
+
+        -- Aperture Offset
+        phys_camera.horizontal_shift = -25.f
+        phys_camera.vertical_shift = -25.f
+        
+        -- Exposure
+        phys_camera.exposure_value = 12.f
+        
+        -- export physical camera
+        local exportPath = output_prefix + "export_physical_camera.usd"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        -- load the USD stage and control camera's parameters
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + phys_camera.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        local usdGfCamera = usdCamera.GetCamera()
+
+        -- Focus distance
+        assert_float phys_camera.focus_distance usdGfCamera.focusDistance message:"'focusDistance' is not equal to physical camera focus setting"
+        -- Focal length; takes into consideration the lens breathing
+        assert_float 40.2568f usdGfCamera.focalLength message:"'focalLength' is not equal to the effective lens focal length"
+
+        -- Field of view
+        local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+        assert_float phys_camera.fov usdGfCameraFOV message:"FOV value is not equal to physical camera setting"
+        -- clipping plane range
+        local usdGfCameraClipRange = usdGfCamera.clippingRange
+        assert_float phys_camera.clip_near (usdGfCameraClipRange.GetMin()) message:("Expected minimum value for 'clippingRange' to be equal to physical camera setting")
+        assert_float phys_camera.clip_far (usdGfCameraClipRange.GetMax()) message:("Expected maximum value for 'clippingRange' to be equal to physical camera setting")
+        -- fstop
+        assert_float phys_camera.f_number usdGfCamera.fStop message:("'fStop' value is not equal to physical camera setting")
+        -- shutter open/close
+        assert_true phys_camera.shutter_offset_enabled message:("The shutter offset attribute to be enabled on the physical camera")
+        local shutterOpenAttr = usdCamera.GetShutterOpenAttr()
+        local shutterOpenValue = (usdTimeToFrame (shutterOpenAttr.Get()) stage) 
+        assert_float phys_camera.shutter_offset_frames shutterOpenValue message:("'shutter:open' value is not equal to physical camera setting")
+        local shutterCloseAttr = usdCamera.GetShutterCloseAttr()
+        local shutterCloseValue = (usdTimeToFrame (shutterCloseAttr.Get()) stage)
+        assert_float (phys_camera.shutter_length_frames+phys_camera.shutter_offset_frames) shutterCloseValue message:("'shutter:close' value is not equal to physical camera setting")
+        -- exposure
+        local exposureAttr = usdCamera.GetExposureAttr()
+        assert_float phys_camera.exposure_value (exposureAttr.Get()) message:("'exposure' value is not equal to physical camera setting")
+        -- Aperture Offset
+        -- horizontal 25% offset from 24mm is 6mm
+        -- vertical   25% offset from 13mm is 6mm (it considers aspect ratio)
+        local horizontalApertureOffsetAttr = usdCamera.GetHorizontalApertureOffsetAttr()
+        assert_float 6f (horizontalApertureOffsetAttr.Get()) message:("Horizontal aperture offset is not equal to physical camera setting")
+        local verticalApertureOffsetAttr = usdCamera.GetVerticalApertureOffsetAttr()
+        assert_float 6f (verticalApertureOffsetAttr.Get()) message:("Vertical aperture offset is not equal to physical camera setting")
+
+        -- keep track of expected values on import
+        local camFOV = phys_camera.fov
+        local camTargetDistance = usdGfCamera.focusDistance  -- parameter is coming from USD
+        local camClipNear = phys_camera.clip_near
+        local camClipFar = phys_camera.clip_far
+        local camHozizontalShift = phys_camera.horizontal_shift
+        local camVerticalShift = phys_camera.vertical_shift
+        local camShutterDuration = phys_camera.shutter_length_frames
+        local camShutterOffset = phys_camera.shutter_offset_frames
+        local camFStop = phys_camera.f_number
+        local camExposure = phys_camera.exposure_value
+            
+        -- now the import test
+        resetMaxAndUnitSetup()
+            
+        USDImporter.ImportFile exportPath
+        
+        local importedCamera = $PhysCamera001
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float camTargetDistance (importedCamera.target_distance) message:"Expected 'focusDistance' is not equal to the value specified in the USD file"
+        assert_float camFOV (importedCamera.fov) message:"Expected FOV value is not equal to physical camera setting"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_true (importedCamera.clip_on) message:("The clip range property is defined in the imported USD file - The camera 'clip_on' property must be on")
+        assert_float camClipNear (importedCamera.clip_near) message:("The near clip camera property value is expected to be equal to the value it was originally set to")
+        assert_float camClipFar (importedCamera.clip_far) message:("The far clip camera property value is expected to be equal to the value it was originally set to")
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float camShutterDuration (importedCamera.shutter_length_frames) message:("The shutter duration property value is not equal to the value specified in the USD file")
+        assert_true (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be enabled when value is specified in the USD file")
+        assert_float camShutterOffset (importedCamera.shutter_offset_frames) message:("The shutter offset property value is not equal to the value specified in the USD file")
+        assert_float camFStop (importedCamera.f_number) message:("The 'fStop' value is not equal to the value specified in the USD file")
+        assert_float camExposure (importedCamera.exposure_value) message:("Expected 'exposure' value is not equal to the value specified in the USD file")
+        assert_float camHozizontalShift (importedCamera.horizontal_shift) message:("Horizontal aperture offset is not equal to the value specified in the USD file")
+        assert_float camVerticalShift (importedCamera.vertical_shift) message:("Vertical aperture offset is not equal to the value specified in the USD file")
+    ),
+
+    function test_animated_phys_camera_export = (
+        
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        phys_camera = Physical target:b pos:[0, -45, 25]
+        
+        -- Non-animatable properties...
+        phys_camera.specify_focus = 1
+        phys_camera.clip_on = true
+        phys_camera.shutter_offset_enabled = true 
+        
+        -- Animate every other camera property over 10 frames.
+        with animate on (
+            
+            at time 0 phys_camera.focus_distance = phys_camera.target_distance + 50.f 
+            at time 10 phys_camera.focus_distance = phys_camera.target_distance + 100.f 
+            
+            -- shutter offset
+            at time 0 phys_camera.shutter_length_frames = 0.3f
+            at time 10 phys_camera.shutter_length_frames = 0.6f
+            
+            at time 0 phys_camera.shutter_offset_frames = 0.2f
+            at time 10 phys_camera.shutter_offset_frames = 0.4f
+
+            -- clipping planes
+            at time 0 phys_camera.clip_near = 10.0f
+            at time 10 phys_camera.clip_near = 500.0f
+            at time 0 phys_camera.clip_far = 300.f
+            at time 10 phys_camera.clip_far = 400.f
+
+            -- change zoom factor
+            -- has an impact on FOV
+            at time 0 phys_camera.zoom_factor = 1.5
+            at time 10 phys_camera.zoom_factor = 3.0
+            
+            -- fStop
+            at time 0 phys_camera.f_number = 2.8f
+            at time 10 phys_camera.f_number = 5.0f
+
+            -- Aperture Offset
+            at time 0 phys_camera.horizontal_shift = -25.f
+            at time 10 phys_camera.horizontal_shift = -75.f
+            at time 0 phys_camera.vertical_shift = -50.f
+            at time 10 phys_camera.vertical_shift = -150.f
+            
+        )
+        
+        local animExportOptions = USDExporter.CreateOptions()
+        animExportOptions.FileFormat = #ascii
+        animExportOptions.RootPrimPath = "/"
+        animExportOptions.TimeMode = #frameRange
+        animExportOptions.StartFrame = 0
+        animExportOptions.EndFrame = 10
+        
+        -- Export the animated camera.
+        local exportPath = output_prefix + "export_animated_physical_camera.usda"
+        
+        USDExporter.ExportFile exportPath exportOptions:animExportOptions
+
+        -- load the USD stage and control camera's parameters.
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + phys_camera.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        
+        -- Expected values for computed attributes.
+        expectedHorizontalApertureOffsets = #(6.0, 
+            6.0, 
+            6.16342,
+            6.56522,
+            7.06579,
+            7.56213,
+            8.0,
+            8.35922,
+            8.63677,
+            8.83544,
+            8.95741,
+            9.0,
+            9.0)
+        expectedVerticalApertureOffsets = #(12.0,
+            12.0,
+            12.3268,
+            13.1304,
+            14.1316,
+            15.1243,
+            16.0,
+            16.7184,
+            17.2735,
+            17.6709,
+            17.9148,
+            18.0,
+            18.0)
+        expectedFocalLengths = #(40.2568,
+            40.2568,
+            40.2554,
+            40.2515,
+            40.246,
+            40.2396,
+            40.2331,
+            40.2269,
+            40.2214,
+            40.2172,
+            40.2143,
+            40.2133,
+            40.2133)
+
+        dataIndex = 1
+        -- Test exported values...
+        -- We test frames outside of the frame range to make sure the interpolation
+        -- works as expected.
+        for frame in -1 to 11 do (
+            local usdGfCamera = usdCamera.GetCamera(frame)
+
+            -- Focus distance
+            assert_float (at time frame phys_camera.focus_distance) usdGfCamera.focusDistance message:("'focusDistance' is not equal to physical camera focus setting at t = " + frame as string)
+            -- Focal length; takes into consideration the lens breathing
+            assert_float expectedFocalLengths[dataIndex] usdGfCamera.focalLength message:("'focalLength' is not equal to the effective lens focal length at t = " + frame as string)
+
+            -- Field of view
+            local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+            assert_float (at time frame phys_camera.fov) usdGfCameraFOV message:("FOV value is not equal to physical camera setting at t = " + frame as string)
+            -- clipping plane range
+            local usdGfCameraClipRange = usdGfCamera.clippingRange
+            assert_float (at time frame phys_camera.clip_near) (usdGfCameraClipRange.GetMin()) message:("Expected minimum value for 'clippingRange' to be equal to physical camera setting at t = " + frame as string)
+            assert_float (at time frame phys_camera.clip_far) (usdGfCameraClipRange.GetMax()) message:("Expected maximum value for 'clippingRange' to be equal to physical camera setting at t = " + frame as string)
+            -- fstop
+            assert_float (at time frame phys_camera.f_number) usdGfCamera.fStop message:("'fStop' value is not equal to physical camera setting at t = " + frame as string)
+            -- shutter open/close
+            assert_true phys_camera.shutter_offset_enabled message:("The shutter offset attribute to be enabled on the physical camera at t = " + frame as string)
+            local shutterOpenAttr = usdCamera.GetShutterOpenAttr()
+            local shutterOpenValue = (usdTimeToFrame (shutterOpenAttr.Get(frame)) stage) 
+            
+            local shutterOffsetAtFrame = at time frame phys_camera.shutter_offset_frames
+            assert_float shutterOffsetAtFrame shutterOpenValue message:("'shutter:open' value is not equal to physical camera setting at t = " + frame as string)
+            
+            local shutterCloseAttr = usdCamera.GetShutterCloseAttr()
+            local shutterCloseValue = (usdTimeToFrame (shutterCloseAttr.Get(frame)) stage)
+            assert_float ((at time frame phys_camera.shutter_length_frames)+shutterOffsetAtFrame) shutterCloseValue message:("'shutter:close' value is not equal to physical camera setting at t = " + frame as string)
+            -- Aperture Offset
+            local horizontalApertureOffsetAttr = usdCamera.GetHorizontalApertureOffsetAttr()
+            assert_float expectedHorizontalApertureOffsets[dataIndex] (horizontalApertureOffsetAttr.Get(frame)) message:("Horizontal aperture offset is not equal to physical camera setting at t = " + frame as string)
+            local verticalApertureOffsetAttr = usdCamera.GetVerticalApertureOffsetAttr()
+            assert_float expectedVerticalApertureOffsets[dataIndex] (verticalApertureOffsetAttr.Get(frame)) message:("Vertical aperture offset is not equal to physical camera setting at t = " + frame as string) 
+            
+            dataIndex = dataIndex + 1
+        )
+    ),
+    
+    -- Camera types which are not physical cameras, are handled slightly differently. 
+    -- The free camera is tested above, for animation we only test the target camera
+    -- as it covers all the attribute that are set from non-physical cameras.
+    function test_animated_target_camera_export =
+    (
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        local cam = (TargetCamera height:10 length:10 width:10 pos:[100, 100, 0] target:b)
+        
+        -- Enable clipping planes
+        cam.clipManually = true
+        
+        -- Animate the clipping, targetDistance and FOV, the supported attributes.
+        with animate on (
+            at time 0 cam.near_clip = 10.0f
+            at time 10 cam.near_clip = 100.0f
+            at time 0 cam.far_clip = 1000.0f
+            at time 10 cam.far_clip = 2000.0f
+            at time 0 cam.fov = 10.0f
+            at time 10 cam.fov = 100.0f
+            at time 0 cam.targetDistance = 20.0f
+            at time 10 cam.targetDistance = 100.0f
+        )
+        -- make sure all params are initialized
+        redrawViews()
+        
+        local animExportOptions = USDExporter.CreateOptions()
+        animExportOptions.FileFormat = #ascii
+        animExportOptions.RootPrimPath = "/"
+        animExportOptions.TimeMode = #frameRange
+        animExportOptions.StartFrame = 0
+        animExportOptions.EndFrame = 10 
+        
+        local exportPath = output_prefix + "export_target_camera_animation.usda"
+        USDExporter.ExportFile exportPath exportOptions:animExportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + cam.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        
+        -- Test exported values at each frames.
+        -- Also tests values outside the range to make sure the interpolation is doing 
+        -- its job properly.
+        for frame = -1 to 11 do (
+            local usdGfCamera = usdCamera.GetCamera(frame)
+
+            assert_equal pyUsdGf.Camera.Perspective usdGfCamera.projection message:("Expected 'projection' type to be 'Perspective' at t = " + frame as string)
+            assert_float (at time frame cam.targetdistance) usdGfCamera.focusDistance message:("Expected 'focusDistance' is not equal to free camera target setting at t = " + frame as string)
+        
+            -- the FOV value covers the horizontal aperture and focal lenght
+            local usdGfCameraFOV = usdGfCamera.frustum.GetFOV()
+            assert_float (at time frame cam.fov) usdGfCameraFOV message:("Expected FOV value is not equal to free camera setting at t = " + frame as string)
+            -- clipping plane range
+            local usdGfCameraClipRange = usdGfCamera.clippingRange
+            assert_float (at time frame cam.near_clip) (usdGfCameraClipRange.GetMin()) message:("Expected minimum value for 'clippingRange' to be equal to free camera setting at t = " + frame as string)
+            assert_float (at time frame cam.far_clip) (usdGfCameraClipRange.GetMax()) message:("Expected maximum value for 'clippingRange' to be equal to free camera setting at t = " + frame as string)
+        )
+    ),
+    
+    function test_camera_animation_validity_intervals = (
+        b = box height:20 width:20 lenght:20 pos:[25, 25, 0]
+        phys_camera = Physical target:b pos:[0, -45, 25]
+
+        -- Animate the zoom in such a way to generate validity intervals.
+        with animate on (
+            at time 0 phys_camera.zoom_factor = 1.0
+            at time 2 phys_camera.zoom_factor = 2.0 -- valid till 4
+            at time 4 phys_camera.zoom_factor = 2.0
+            at time 6 phys_camera.zoom_factor = 3.0
+            at time 8 phys_camera.zoom_factor = 3.0 -- valid till 10 
+            at time 10 phys_camera.zoom_factor = 4.0    
+        )
+        
+        -- Export the animiated camera.
+        local exportPath = output_prefix + "test_camera_animation_validity_intervals.usda"
+        
+        local animExportOptions = USDExporter.CreateOptions()
+        animExportOptions.FileFormat = #ascii
+        animExportOptions.RootPrimPath = "/"
+        animExportOptions.TimeMode = #frameRange
+        animExportOptions.StartFrame = -1
+        animExportOptions.EndFrame = 11
+        USDExporter.ExportFile exportPath exportOptions:animExportOptions
+
+        local stage = pyUsd.Stage.Open(exportPath)
+        local objPrim =  stage.GetPrimAtPath("/" + phys_camera.name)
+        local usdCamera = pyUsdGeom.Camera(objPrim)
+        
+        local horizontalApertureAttr = usdCamera.GetHorizontalApertureAttr()
+        
+        local timeSamples = horizontalApertureAttr.GetTimeSamples()
+        
+        -- From validity intervals, should need no samples for -1,3,7,11. 
+        local expectedTimeSamples = #(0,1,2,4,5,6,8,9,10) 
+        
+        assert_equal expectedTimeSamples.Count timeSamples.Count message:"An unexpected number of time samples were exported given the camera's validity intervals."
+        
+        for i in 1 to expectedTimeSamples.Count do (
+            assert_equal expectedTimeSamples[i] timeSamples[i] message:("Unexpected time sample exported " + timeSamples[i] as string)
+        )
+    ),
+
+    function test_camera_animation_import_attributes = (
+        
+        units.SystemType = #Millimeters
+        units.SystemScale = 1
+
+        -- Import the animated camera
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local importPath = (scriptDir + @"data\camera_animated.usda")
+        
+        importOptions = USDImporter.CreateOptions()
+        importOptions.StartTimeCode = 0
+        importOptions.EndTimeCode = 10
+        importOptions.TimeMode = #CustomRange
+        USDImporter.ImportFile importPath importOptions:importOptions
+        
+        local importedCamera = $Camera001
+        sliderTime = 0
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float 5000.0f (importedCamera.target_distance) message:"Expected 'focusDistance' to be equal to the value specified in the USD file"
+        assert_float 40.3226 (importedCamera.focal_length_mm) message:"Expected 'focalLength' to be equal to the value specified in the USD file"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_float 6.0f (importedCamera.exposure_value) message:"Expected 'exposure' to be equal to the value specified in the USD file"
+        assert_true (importedCamera.clip_on) message:("The clip range property is defined in the imported USD file - The camera 'clip_on' property must be on")
+        assert_float 200.0 (importedCamera.clip_near) message:("The near clip camera property value is expected to be equal to what it was originally set")
+        assert_float 1000.0 (importedCamera.clip_far) message:("The far clip camera property value is expected to be equal to what it was originally set")
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float 0.5f (importedCamera.shutter_length_frames) message:("The shutter duration property value is expected to be equal to what it was originally set")
+        assert_true (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be enabled when value is defined in the USD file")
+        assert_float 0.0f (importedCamera.shutter_offset_frames) message:("The shutter offset property value is expected to be equal to what it was originally set")
+        assert_float 8f (importedCamera.f_number) message:("Expected 'fStop' value is expected to be equal to what it was originally set")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+
+        sliderTime = 10
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float 5000.0f (importedCamera.target_distance) message:"Expected 'focusDistance' to be equal to the value specified in the USD file"
+        assert_float 45.8249 (importedCamera.focal_length_mm) message:"Expected 'focalLength' to be equal to the value specified in the USD file"
+        assert_float 12.0f (importedCamera.exposure_value) message:"Expected 'exposure' to be equal to the value specified in the USD file"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_true (importedCamera.clip_on) message:("The clip range property is defined in the imported USD file - The camera 'clip_on' property must be on")
+        assert_float 400.0 (importedCamera.clip_near) message:("The near clip camera property value is expected to be equal to what it was originally set")
+        assert_float 800.0 (importedCamera.clip_far) message:("The far clip camera property value is expected to be equal to what it was originally set")
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_float 0.4f (importedCamera.shutter_length_frames) message:("The shutter duration property value is expected to be equal to what it was originally set")
+        assert_true (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be enabled when value is defined in the USD file")
+        assert_float 0.1f (importedCamera.shutter_offset_frames) message:("The shutter offset property value is expected to be equal to what it was originally set")
+        assert_float 16f (importedCamera.f_number) message:("Expected 'fStop' value is expected to be equal to what it was originally set")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+    ),
+
+    function test_invalid_import_attributes =
+    (
+        -- float focalLength = 57.42173
+        -- float horizontalAperture = 36
+        -- token projection = "perspective"
+        -- float verticalAperture = 20.25
+        -- generates a FOV of 34.8093
+        local importPath = output_prefix + "import_invalid_import_attributes_test.usda"
+        local stage = pyUsd.Stage.CreateNew(importPath)
+        pyUsdGeom.SetStageMetersPerUnit stage 0.0254 -- default 3ds Max settings
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+
+        local camPrim = pyUsdGeom.Camera.Define stage "/Camera001"
+        camPrim.CreateFocalLengthAttr(57.42173)
+        camPrim.CreateHorizontalApertureAttr(36)
+        camPrim.CreateProjectionAttr("perspective")
+        camPrim.CreateVerticalApertureAttr(20.25)
+        
+        -- set attributes to 0 but in import those should be set to default Physical camera values
+        camPrim.CreateFocusDistanceAttr(0)
+        camPrim.CreateShutterCloseAttr(0)
+        camPrim.CreateFStopAttr(0)
+        camPrim.CreateExposureAttr(0)
+        
+        (stage.GetRootLayer()).Save()
+    
+        -- now the import test
+        resetMaxAndUnitSetup()
+        importFile importPath #noPrompt
+        local importedCamera = $Camera001
+        assert_equal Physical (classof importedCamera) message:("Imported camera from USD is expected to be a 'Physical' camera type")
+        assert_float 34.8093 (importedCamera.fov) message:"Expected FOV value is not equal to calculated value from input"
+        assert_false (importedCamera.specifyfov) message:"Expected 'Specify FOV' option to be disabled"
+        assert_false (importedCamera.clip_on) message:("The clip range property is not defined in the imported USD file - The camera 'clip_on' property must be off")
+        -- overruled values from USD
+        assert_float 160.0f (importedCamera.target_distance) message:"Expected 'focusDistance' to be equal to default '160.0' setting when USD attribute is set to '0'"
+        assert_float 0.5f (importedCamera.shutter_length_frames) message:("The shutter duration property value shall be set to default '0.5' when USD attribute is set to '0'")
+        assert_float 8f (importedCamera.f_number) message:("'fStop' value shall be set to default '8' when USD attribute is set to '0'")
+        assert_float 6f (importedCamera.exposure_value) message:("'exposure' value shall be set to default '6' when USD attribute is set to '0'")
+        -- defaults from Physical Camera because USD attributes
+        assert_float 1.f (importedCamera.zoom_factor) message:("No zoom factor should be applied by default on imported USD cameras")
+        assert_float 0.f (importedCamera.lens_breathing_amount) message:("No lens breathing amount value should be applied by default on imported USD cameras")
+        assert_equal 3 (importedCamera.shutter_unit_type) message:("Expected shutter unit type to be set to 'Frames'")
+        assert_false (importedCamera.shutter_offset_enabled) message:("The shutter offset shall be disabled when value is not defined in the USD file")
+        assert_float 0.0f (importedCamera.shutter_offset_frames) message:("The default shutter offset property value is expected when not specified in the USD file")
+        assert_float 0f (importedCamera.horizontal_shift) message:("The default horizontal aperture offset is not equal to '0' when value is not used in the USD file")
+        assert_float 0f (importedCamera.vertical_shift) message:("The default vertical aperture offset is not equal to '0' when value is not used in the USD file")
+    ),
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+   Tests = #(
+        export_all_cameras,
+        test_free_camera_attributes,
+        test_target_camera_attributes,
+        test_default_physical_camera_attributes,
+        test_physical_camera_attributes,
+        test_animated_phys_camera_export,
+        test_animated_target_camera_export,
+        test_camera_animation_validity_intervals,
+        test_camera_animation_import_attributes,
+        test_invalid_import_attributes
+     )
+
+
+)
+runUsdTestFixture io_camera_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/io_color_n_visibility_test.ms b/src/Tests/Integration/io_color_n_visibility_test.ms
new file mode 100644
index 0000000..4084193
--- /dev/null
+++ b/src/Tests/Integration/io_color_n_visibility_test.ms
@@ -0,0 +1,255 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/IO_COLOR_N_VISIBILITY_TEST_"
+deleteTestFiles(output_prefix)
+
+struct io_color_n_visibility_test
+(
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+
+    public
+    function setup =
+    (
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        resetmaxfile #noprompt
+    ),
+    
+    function test_io_display_color = (
+        testFilePath = output_prefix + "test_io_display_color.usd"
+        -- Basic case, wire color is outputted to the displayColor primvar...
+        local b = box name:"box"
+        local redColor = Color 255 0 0
+        b.wireColor = redColor
+        USDExporter.ExportFile testFilePath exportOptions:exportOptions
+
+        stage = pyUsd.Stage.Open(testFilePath)
+        prim = pyUsdGeom.Gprim.Get stage ("/" + b.name)
+        local mesh = pyUsdGeom.Mesh(prim)
+        local displayColorAttr = mesh.GetDisplayColorAttr()
+        local dispColor = (displayColorAttr.Get())[0]
+        assert_equal 1 dispColor[1] message:"Unexpected displayColor, should be from the wire color."
+        assert_equal 0 dispColor[2] message:"Unexpected displayColor, should be from the wire color."
+        assert_equal 0 dispColor[3] message:"Unexpected displayColor, should be from the wire color."
+        
+        resetMaxFile #noprompt
+        -- Reimport the file, now we should get back the right wire color.
+        USDImporter.ImportFile testFilePath
+        b = $box    
+        assert_equal redColor b.wireColor message:"Unexpected wireColor on import. Should be from primvars:displayColor."
+    ),
+    
+    function test_display_color_override = (
+        testFilePath = output_prefix + "test_display_color_override.usd"
+        local b = box name:"box"
+        convertToPoly b
+        b.wireColor = Color 255 0 0 -- red
+        local greenColor = Color 0 255 0
+        
+        -- Set green as vertex color.
+        polyop.setVertColor b 0 #(1,2,3,4,5,6,7,8) greenColor
+
+        -- Explicitely map the vertex color channel to primvar:displayColor.
+        exportOptions.SetChannelPrimvarMapping 0 "displayColor"
+        USDExporter.ExportFile testFilePath exportOptions:exportOptions
+
+        -- Now the display color should respect our mapping, and not use the wire color.
+        stage = pyUsd.Stage.Open(testFilePath)
+        prim = pyUsdGeom.Gprim.Get stage ("/" + b.name)
+        local mesh = pyUsdGeom.Mesh(prim)
+        local displayColorAttr = mesh.GetDisplayColorAttr()
+        local dispColor = (displayColorAttr.Get())[0]
+        assert_equal 0 dispColor[1] message:"Unexpected displayColor, should be from the vertex color."
+        assert_equal 1 dispColor[2] message:"Unexpected displayColor, should be from the vertex color."
+        assert_equal 0 dispColor[3] message:"Unexpected displayColor, should be from the vertex color."
+            
+        resetMaxFile #noprompt
+        -- Reimport the file, now we should get back green as the wire color...
+        USDImporter.ImportFile testFilePath
+        b = $box    
+        assert_equal greenColor b.wireColor message:"Unexpected wireColor on import. Should be from primvars:displayColor."
+    ),    
+
+    function test_visibility = (
+        testFilePath = output_prefix + "test_visibility.usd"
+        
+        local b = box name:"box"
+        convertToPoly b
+            
+        local hiddenBox = box name:"hiddenBox"
+        convertToPoly hiddenBox
+        hiddenBox.isNodeHidden = true
+        hiddenBox.pos = [20, 0, 0]
+        
+        local opts = USDExporter.CreateOptions()
+        opts.RootPrimPath = "/"
+        opts.HiddenObjects = true
+        opts.UseUSDVisibility = true
+        USDExporter.ExportFile testFilePath exportOptions:opts
+
+        stage = pyUsd.Stage.Open(testFilePath)
+        
+        local prim = pyUsdGeom.Gprim.Get stage ("/" + b.name)
+        local mesh = pyUsdGeom.Mesh(prim)
+        local visibilityAttr = mesh.GetVisibilityAttr()
+        local visibility = (visibilityAttr.Get())
+        assert_equal "inherited" visibility message:"Unexpected box.visibility, should be inherited."
+        
+        prim = pyUsdGeom.Gprim.Get stage ("/" + hiddenBox.name)
+        mesh = pyUsdGeom.Mesh(prim)
+        visibilityAttr = mesh.GetVisibilityAttr()
+        visibility = (visibilityAttr.Get())
+        assert_equal "invisible" visibility message:"Unexpected hiddenBox.visibility, should be invisible."
+            
+        resetMaxFile #noprompt
+
+        USDImporter.ImportFile testFilePath
+        b = $box   
+        assert_false b.isNodeHidden message:"Unexpected box.isNodeHidden on import. Node should not be hidden."
+        hiddenBox = $hiddenBox   
+        assert_true hiddenBox.isNodeHidden message:"Unexpected hiddenBox.isNodeHidden on import. Node should be hidden."
+    ),
+    
+    function test_import_inherited_visibility = (
+        testFilePath = output_prefix + "test_inherited_visibility.usda"
+        
+        local stage = pyUsd.Stage.CreateNew(testFilePath)
+        local rootPrim = stage.DefinePrim "/rootPrim"
+        local branch1Prim = pyUsdGeom.Xform.Define stage "/rootPrim/invisiblePrim"
+        local branch1ChildPrim = stage.DefinePrim "/rootPrim/invisiblePrim/child"
+        local branch1GrandchildPrim = stage.DefinePrim "/rootPrim/invisiblePrim/child/grandchild"
+        local branch2Prim = stage.DefinePrim "/rootPrim/visiblePrim"
+        local branch2ChildPrim = stage.DefinePrim "/rootPrim/visiblePrim/child"
+        local branch2GrandchildPrim = pyUsdGeom.Xform.Define stage "/rootPrim/visiblePrim/child/invisibleGrandchild"
+        
+        -- Setting the branch 1 root prim invisible should make the entire branch invisible
+        invisibleImageablePrim = pyUsdGeom.Imageable(branch1Prim)
+        visibilityAttr = invisibleImageablePrim.GetVisibilityAttr()
+        visibilityAttr.Set(pyUsdGeom.Tokens.invisible)
+        
+        -- Setting the branch 2 grand child prim invisible should make only this prim invisible
+        invisibleImageablePrim2 = pyUsdGeom.Imageable(branch2GrandchildPrim)
+        visibilityAttr = invisibleImageablePrim2.GetVisibilityAttr()
+        visibilityAttr.Set(pyUsdGeom.Tokens.invisible)
+        
+        (stage.GetRootLayer()).Save()
+        USDImporter.ImportFile testFilePath
+        
+        assert_false $rootPrim.isNodeHidden message:"The root prim should not be hidden."
+        
+        -- validate branch 1
+        assert_true $rootPrim/invisiblePrim.isNodeHidden message:"The invisible prim should  be hidden."
+        assert_true $rootPrim/invisiblePrim/child.isNodeHidden message:"The invisible prim child should be hidden."
+        assert_true $rootPrim/invisiblePrim/child/grandchild.isNodeHidden message:"The invisible prim grandchild should be hidden."
+        
+        -- validate branch 2
+        assert_false $rootPrim/visiblePrim.isNodeHidden message:"The visible prim should not be hidden."
+        assert_false $rootPrim/visiblePrim/child.isNodeHidden message:"The visible prim child should not be hidden."
+        assert_true $rootPrim/visiblePrim/child/invisibleGrandchild.isNodeHidden message:"The invisible grand child prim should be hidden."
+    ),
+    
+    
+    function count_file_lines filePath = (
+        local file = openFile filePath
+        local count = 0
+        while not eof file do (
+            readLine file
+            count += 1
+        )
+        close file
+        return count
+    ),
+    
+    -- In USD, visibility is inherited, in Max it is not. This is a fundamental difference for which we 
+    -- do not have a solution at this time. When we find problematic cases, we log a warning...
+    function test_export_visibility_warnings = (
+        
+        testFilePath = output_prefix + "test_visibility_warnings.usd"
+        
+        local b1 = box name:"box1"
+        local b2 = box name:"box2"
+        b2.parent = b1
+        local b3 = box name:"box3"
+        b3.parent = b2
+        local b4 = box name:"box4"
+        b4.parent = b3
+        
+        local expOptions = USDExporter.CreateOptions()
+        expOptions.RootPrimPath = "/"
+        expOptions.LogLevel = #warn
+        expOptions.HiddenObjects = true
+        expOptions.UseUSDVisibility = true
+        
+        -- At this point there is no issue with visibility, expect no warnings. 
+        USDExporter.ExportFile testFilePath exportOptions:expOptions
+        assert_equal 0 (count_file_lines(expOptions.LogPath))
+        deleteFile expOptions.LogPath
+            
+        -- Hide box3 and box4, still no issue, visibility cant still properly be represented
+        -- on the USD side.
+        b3.isNodeHidden = true
+        b4.isNodeHidden = true
+        
+        USDExporter.ExportFile testFilePath exportOptions:expOptions
+        assert_equal 0 (count_file_lines(expOptions.LogPath))
+        deleteFile expOptions.LogPath
+        
+        -- Now hide box1. This will be an issue as box2 is still visible. Expect one warning.
+        b1.isNodeHidden = true
+        USDExporter.ExportFile testFilePath exportOptions:expOptions
+        assert_equal 1 (count_file_lines(expOptions.LogPath))
+        deleteFile expOptions.LogPath
+            
+        -- Now show again box4. Still expect a single warning, we only warn once on the node highest in 
+        -- the problematic hierarchy.
+        b4.isNodeHidden = false
+        b1.isNodeHidden = true
+        USDExporter.ExportFile testFilePath exportOptions:expOptions
+        assert_equal 1 (count_file_lines(expOptions.LogPath))
+        deleteFile expOptions.LogPath
+        
+        -- Create a second problematic hierarchy, to make sure that we indeed get one warning per problematic 
+        -- hierarchy.
+        local s1 = sphere name:"shpere1"
+        local s2 = sphere name:"shpere2"
+        s2.parent = s1
+        s1.isNodeHidden = true
+        USDExporter.ExportFile testFilePath exportOptions:expOptions
+        assert_equal 2 (count_file_lines(expOptions.LogPath))
+        deleteFile expOptions.LogPath
+    ),
+    
+    function teardown = (
+    ),
+
+    tests = #(test_io_display_color, 
+        test_display_color_override, 
+        test_visibility, 
+        test_import_inherited_visibility,
+        test_export_visibility_warnings)
+)
+
+runUsdTestFixture io_color_n_visibility_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/io_point_helpers_test.ms b/src/Tests/Integration/io_point_helpers_test.ms
new file mode 100644
index 0000000..e84840b
--- /dev/null
+++ b/src/Tests/Integration/io_point_helpers_test.ms
@@ -0,0 +1,93 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+
+path_prefix = pathConfig.appendPath (getDir #temp) "/IO_POINT_HELPERS_TEST_"
+deleteTestFiles(path_prefix + "*.*")
+
+struct io_point_helpers_test
+(
+    private
+    exportOptions = USDExporter.CreateOptions(),
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+
+    function test_basic_io_point_helpers = (
+        -- Make sure Point Helpers are exported as Xform
+        Point()
+
+        -- Groups are dummies that will be exported as Xform
+        Box()
+        Sphere()
+        DataPair "Group" (group #($Box001, $Sphere001))
+
+        -- Export 3ds max scene
+        local stagePath = path_prefix + "basic_io_point_helpers_test.usda"
+        USDExporter.ExportFile stagePath exportOptions:exportOptions
+
+        -- Make sure everything was exported properly
+        local stage = pyUsd.Stage.Open(stagePath)
+
+        -- Validate the export of Point Helpers 
+        local point1Prim = stage.GetPrimAtPath("/Point001")
+        assert_true (pyUsd.Prim.IsValid(point1Prim)) message:"Point001 was not properly exported."
+        assert_true (point1Prim.IsA(pyUsdGeom.Xform)) message:("Wrong prim type for Point001, it should have been a Xform.")
+
+        -- Validate the export of groups
+        local group1Prim = stage.GetPrimAtPath("/Group001")
+        assert_true (pyUsd.Prim.IsValid(group1Prim)) message:"Group001 was not properly exported."
+        assert_true (group1Prim.IsA(pyUsdGeom.Xform)) message:("Wrong prim type for Group001, it should have been a Xform. ")
+        local box1Prim = stage.GetPrimAtPath("/Group001/Box001")
+        assert_true (pyUsd.Prim.IsValid(box1Prim)) message:"Box001 was not properly exported."
+        assert_true (box1Prim.IsA(pyUsdGeom.Mesh)) message:("Wrong prim type for Box001, it should have been a Mesh.")
+        local sphere1Prim = stage.GetPrimAtPath("/Group001/Sphere001")
+        assert_true (pyUsd.Prim.IsValid(sphere1Prim)) message:"Sphere001 was not properly exported."
+        assert_true (sphere1Prim.IsA(pyUsdGeom.Mesh)) message:("Wrong prim type for Sphere001, it should have been a Mesh.")
+        
+        -- Clean 3ds max scene and reimport USD stage
+        resetmaxfile #noprompt
+        USDImporter.ImportFile stagePath
+
+        -- Make sure Xform were imported as Point Helpers
+        assert_true (classOf $Point001 == Point) message:"Point001 was not properly imported."
+        assert_true (classOf $Group001 == Point) message:"Group001 was not properly imported."
+
+        -- Their cross should be invisible
+        assert_false ($Point001.cross) message:"Point001's cross should be invisible (set to false) by default on import."
+        assert_false ($Group001.cross) message:"Group001's cross should be invisible (set to false) by default on import."
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(test_basic_io_point_helpers)
+)
+
+runUsdTestFixture io_point_helpers_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/io_unicode_test.ms b/src/Tests/Integration/io_unicode_test.ms
new file mode 100644
index 0000000..61b62a2
--- /dev/null
+++ b/src/Tests/Integration/io_unicode_test.ms
@@ -0,0 +1,234 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyKind = python.import("pxr.Kind")
+pyUsdTf = python.import("pxr.Tf")
+pyShade = python.import("pxr.UsdShade")
+pysdf = python.import("pxr.Sdf")
+pyUsdUI = python.import("pxr.UsdUI")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/UNICODE_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct unicode_test
+(
+    private
+    exportOptions = USDExporter.CreateOptions(),
+    usdAllCA,
+    originalTempDir = getDir #temp,
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Materials = true
+
+        
+        usdAllCA = attributes USDData
+        (
+            parameters USD
+            (
+                usd_purpose type:#string
+                usd_hidden type:#boolean
+                usd_kind type:#string
+            )
+        )
+    ),
+
+    function resetTempDir = (
+        setDir #temp originalTempDir
+    ),
+
+    function createEmptyUsdaFile filename = (
+        outFile = createfile filename
+        format "#usda 1.0\\n(\\n    metersPerUnit = 0.0254\\n    upAxis = \"Z\"\\n)\\n" to:outFile
+        close outFile
+    ),
+
+    function test_unicode_usdstage_filename = (
+        if (USDStageObject == undefined) do (
+            print("Skipping unicode_test.test_unicode_usdstage_filename() as MaxUsdObjects.dlo plugin not available.")
+            return -1
+        )
+
+        --given
+        local unicodeFilename = "いろはにほへ.usda"
+        testUsdFile = output_prefix + unicodeFilename
+        createEmptyUsdaFile testUsdFile
+
+        --when
+        local maxUsdStage = USDStageObject()
+        try (
+            maxUsdStage.SetRootLayer testUsdFile
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"Attempting to set a unicode rootlayer name should throw an exception."
+    ),
+
+    function test_unicode_usdz_tempdir = (
+        --given
+        local tempDir = getDir #temp
+        tempDir = pathConfig.appendPath tempDir "/いろはにほへ"
+        setDir #temp tempDir
+
+        exportPath = output_prefix + "file_format_archive.usdz"
+
+        --when
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        --then
+        assert_false status message:"usdz export should fail due to unicode characters in `getDir #temp` filepath"
+        assert_false (doesFileExist exportPath) message:"usdz file should not have been exported due to unicode characters in `getDir #temp` filepath"
+
+        resetTempDir()
+    ),
+
+    function test_unicode_filename = (
+        -- given
+        local unicodeFilename = "いろはにほへ.usda"
+        mybox1 = Box pos:[0,0,0] width:1 length:1 height:1 name:"Box001"
+        -- when
+        testUsdFile = output_prefix + unicodeFilename
+        status = exportFile testUsdFile #noprompt
+        -- then
+        assert_false status message:("Exporting to filename with unicode characters should be rejected")
+
+        -- when
+        testUsdFile = output_prefix + unicodeFilename
+        createEmptyUsdaFile testUsdFile
+        status = importFile testUsdFile #noprompt
+        -- then
+        assert_false status message:("Importing filename with unicode characters should be rejected")
+    ),
+
+    function test_unicode_metadata = (
+        -- given
+        unicodeTestString1 = "unicode Καλημέρα κόσμε, コンニチハ"
+        unicodeTestString12 = "unicode £©µÀÆÖÞßéöÿ–—‘“”„†•…‰™œŠŸž€ ΑΒΓΔΩαβγδω АБВГДабвгд"
+        mybox1 = Box pos:[0,0,0] width:0.001 length:0.001 height:0.001 name:"Box001"
+        custAttributes.add mybox1.baseObject usdAllCA #Unique BaseObject:true
+        mybox1.usd_hidden = true
+        mybox1.usd_kind = unicodeTestString1
+        mybox1.usd_purpose = unicodeTestString12
+
+        -- when
+        testUsdFile = output_prefix + "test_unicode_metadata.usda"
+        status = USDExporter.ExportFile testUsdFile exportOptions:exportOptions
+
+        -- then
+        assert_true status message:"export to usd failed"
+        local stage = pyUsd.Stage.Open(testUsdFile)
+        local prim = stage.GetPrimAtPath("/Box001")
+        local imageablePrim = pyUsdGeom.Imageable(prim)
+        local purposeAttr = imageablePrim.GetPurposeAttr()
+        local model = pyUsd.ModelAPI(prim)
+        assert_equal unicodeTestString12 (purposeAttr.Get())
+        assert_equal unicodeTestString1 (model.GetKind())
+
+        -- when import unicode data encoded as ascii (multibyte) in usd file
+        resetmaxfile #noprompt
+        status = USDImporter.ImportFile testUsdFile
+
+        -- then
+        assert_true status message:"import usd file with unicode metadata failed"
+        importedBox = $Box001
+        assert_equal unicodeTestString1 importedBox.usd_kind message:("failed expectation on unicode data imported into custom attribute")
+        assert_equal unicodeTestString12 importedBox.usd_purpose message:("failed expectation on unicode data imported into custom attribute")
+    ),
+
+    function test_unicode_nodenames = (
+        --given
+        boxAName = "איך הקליטה Ξεσκεπάζω τὴν ψυχοφθόρα βδελυγμία Zwölf Boxkämpfer Sævör grét því úlpan var ónýt" --91
+        boxBName = "more unicode いろはにほへ イロハニホヘト พูดจาให้จ๊ะๆ จ๋าๆ น่าฟังเอย" --32
+        boxA = box()
+        boxA.name = boxAName
+        boxB = box()
+        boxB.name = boxBName
+
+        --when
+        local exportPath = (output_prefix + "unicode_export.usda")
+
+        --then
+        boxAIdentifierName = "_____________________________________________________________________________________Zw__lf_Boxk__mpfer_S__v__r_gr__t___v_____lpan_var___n__t"
+        boxBIdentifierName = "more_unicode_______________________________________________________________________________________________________________________"
+        status = USDExporter.ExportFile exportPath exportOptions:exportOptions
+        assert_equal 1 status
+        assert_true (doesFileExist exportPath)
+        stage = pyUsd.Stage.Open(exportPath)
+        local usdBoxA = stage.GetPrimAtPath("/" + boxAIdentifierName)
+        local usdBoxB = stage.GetPrimAtPath("/" + boxBIdentifierName)
+        assert_true (pyUsd.Prim.IsValid(usdBoxA)) message:("prim for boxA was not found")
+        assert_true (pyUsd.Prim.IsValid(usdBoxB)) message:("prim for boxB was not found")
+    ),
+
+    function test_export_material_textures_unicode = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"usdPhysMapTestMtl"
+        box001.material = physicalMtl
+        
+        local baseColorBitmapPath = @"C:\folderXY\uniaいろはcode_にほへ.png"
+        
+        physicalMtl.base_color_map = Bitmaptexture fileName:baseColorBitmapPath
+        
+        local exportPath = output_prefix + "export_material_bitmap_unicode_filename.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/usdPhysMapTestMtl/usdPhysMapTestMtl"
+        assert_defined shaderPrim message:("missing USD material")
+        assert_true ((shaderPrim.GetInput("diffuseColor")).HasConnectedSource())
+        local connectedSourceTuple = ((shaderPrim.GetInput("diffuseColor")).GetConnectedSource())
+        local inputFile = ((connectedSourceTuple[1]).GetInput("file")).Get()
+        assert_undefined inputFile message:("'asset inputs:file' should not be set for filepath containing unicode characters on export")
+    ),
+
+    function test_export_material_name_unicode = (
+        local box001 = Box pos:[0,0,0] name:"box001"
+        local physicalMtl = PhysicalMaterial name:"uniaいろはcode_にほへ"
+        box001.material = physicalMtl
+        
+        local exportPath = output_prefix + "export_material_name_unicode.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        
+        local stage = pyUsd.Stage.Open(exportPath)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/unia_________code__________/unia_________code__________"
+        assert_defined shaderPrim
+    ),
+
+    function teardown = (
+        custAttributes.deleteDef usdAllCA
+        resetTempDir()
+    ),
+
+    Tests = #(test_unicode_nodenames, test_unicode_metadata, test_unicode_filename, test_export_material_name_unicode,
+        test_export_material_textures_unicode, test_unicode_usdz_tempdir, test_unicode_usdstage_filename)
+)
+
+runUsdTestFixture unicode_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/load_materialx_plugin_test.ms b/src/Tests/Integration/load_materialx_plugin_test.ms
new file mode 100644
index 0000000..289dafd
--- /dev/null
+++ b/src/Tests/Integration/load_materialx_plugin_test.ms
@@ -0,0 +1,53 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+struct load_materialx_plugin_test
+(
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function test_material_x_plugin_loaded = (
+        -- The materialX 3dsmax plugin is bundled with our USD plugin.
+        
+        -- We should be able to find its DLL in the registered plugins.
+        local materialXDllLoaded = false
+        for i=1 to pluginManager.pluginDllCount do
+        (
+            
+            if (pluginManager.isPluginDllLoaded i) and (pluginManager.pluginDllName i) == "materialxio.dlu" do
+            (
+                materialXDllLoaded = true
+                exit 
+            )
+        )
+        assert_true materialXDllLoaded message:"materialxio.dlu is not loaded, the MaterialX plugin is not properly initialized."
+        
+        -- Also make sure that its scripts parts have been executed.
+        assert_defined MaterialXMaterial message:"MaterialXMaterial is not defined, the MaterialX plugin is not properly initialized."
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(test_material_x_plugin_loaded)
+)
+
+runUsdTestFixture load_materialx_plugin_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/load_usd_materialx_plugin_test.ms b/src/Tests/Integration/load_usd_materialx_plugin_test.ms
new file mode 100644
index 0000000..38a767c
--- /dev/null
+++ b/src/Tests/Integration/load_usd_materialx_plugin_test.ms
@@ -0,0 +1,48 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+pyUsd = python.import("pxr.Usd")
+
+struct load_usd_materialx_plugin_test
+(
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function test_usd_material_x_plugin_loaded = (
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleMtlXFile = (testDataDir + @"data\simpleMtlxRef.usda")
+        
+        stage = pyUsd.Stage.Open(sampleMtlXFile)
+        
+        -- Make sure the materialX format plugin was loaded, and the standard materialX libs where found.
+        -- Do this by looking for a translated shader prim. "ND_standard_surface_surfaceshader" is a shader from 
+        -- the standard library.
+        prim = stage.GetPrimAtPath("/root/mtl/Material__43/Materials/Iberian_Blue_Ceramic_Tiles/ND_standard_surface_surfaceshader")
+        assert_true (prim.IsValid())
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(test_usd_material_x_plugin_loaded)
+)
+
+runUsdTestFixture load_usd_materialx_plugin_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/map_channel_export_test.ms b/src/Tests/Integration/map_channel_export_test.ms
new file mode 100644
index 0000000..1cc0dce
--- /dev/null
+++ b/src/Tests/Integration/map_channel_export_test.ms
@@ -0,0 +1,307 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pySdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/MAP_CHANNEL_EXPORT_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct map_channel_export_test
+(  
+    private 
+    exportOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+    ),
+    
+    -- Make sure that defaults are properly reset after a call to SetChannelPrimvarMappingDefaults()
+    function test_set_defaults_mapchannel_output = (
+        -- Set some non default mappings.
+        for i = -2 to 99 do 
+        (
+            exportOptions.SetChannelPrimvarMapping i ("test" + (i+2) as string) type:#float3Array
+        )
+        
+        -- reset to defaults 
+        exportOptions.SetChannelPrimvarMappingDefaults()
+        
+        -- Now make sure the defaults were properly reset.
+        
+        -- Alpha 
+        assert_equal "displayOpacity" (exportOptions.GetChannelPrimvarName -2) message:"The alpha channel primvar name was not properly reset."
+        assert_equal #floatArray (exportOptions.GetChannelPrimvarType -2) message:"The alpha channel primvar type was not properly reset."
+        
+        -- Shading
+        assert_equal "mapShading" (exportOptions.GetChannelPrimvarName -1) message:"The shading channel primvar name was not properly reset."
+        assert_equal #color3fArray (exportOptions.GetChannelPrimvarType -1) message:"The shading channel primvar type was not properly reset."
+        
+        -- Vertex color
+        assert_equal "vertexColor" (exportOptions.GetChannelPrimvarName 0) message:"The vertex color channel primvar name was not properly reset."
+        assert_equal #color3fArray (exportOptions.GetChannelPrimvarType 0) message:"The vertex color channel primvar type was not properly reset."
+            
+        -- Other mapped channels.
+        for i = 1 to 99 do 
+        (
+            local expected = "st"
+            if i > 1 do 
+            (
+                expected = expected + (i-1) as string
+            )
+            assert_equal (exportOptions.GetChannelPrimvarName i) expected message:("The primvar name was not properly reset for channel " + i as string)
+            assert_equal (exportOptions.GetChannelPrimvarType i) #texCoord2fArray message:("The primvar type was not properly reset for channel " + i as string)
+            assert_false (exportOptions.GetChannelPrimvarAutoExpandType i) message:("The primvar autoExpand was not properly reset for channel " + i as string)
+        )
+    ),
+ 
+    -- Test that exceptions are thrown when attempting to configure a channel with bad values.
+    function test_bad_mapchannel_output = (
+        local exceptionThrown = false
+        try (
+            exportOptions.SetChannelPrimvarMapping -3 "invalid_channel" type:#float3Array
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting to configure an invalid channel."
+
+        exceptionThrown = false
+        try (
+            exportOptions.SetChannelPrimvarMapping 0 "invalid:name" type:#float3Array
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting set an invalid primvar name."        
+    ),
+   
+    -- Test all primvar types on output.
+    function test_channel_mapping_config = (
+        
+        local types = #(#floatArray, #float2Array, #float3Array, #color3fArray, #texcoord2fArray, #texcoord3fArray)
+        local type_names = #("float[]", "float2[]", "float3[]", "color3f[]", "texCoord2f[]", "texCoord3f[]")
+        local b = box()
+        b.name = "box"
+        convertToPoly b
+        
+        for i = 1 to 6 do (
+            exportOptions.SetChannelPrimvarMapping i ("test" + i as string) type:types[i] autoExpandType:false
+            polyop.defaultMapFaces b i
+        )
+        
+        local exportPath = output_prefix + "channel_mapping_types.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local usdBox = stage.GetPrimAtPath("/" + b.name)
+        assert_true (pyUsd.Prim.IsValid(usdBox)) message:"The box was not exported to a USD prim as expected."
+        assert_true (usdBox.IsA(pyUsdGeom.Mesh)) message:"The box prim is not a mesh."
+    
+        for i = 1 to 6 do (
+            local name = ("test" + i as string)            
+            local primvarApi = pyUsdGeom.PrimvarsAPI(usdBox)
+            assert_true (primvarApi.HasPrimvar(name)) message:("Missing primvar on export : " + name)
+            local primvar = primvarApi.GetPrimvar(name)
+            assert_equal type_names[i] (primvar.GetTypeName() as string) message:("Found primvar with the wrong type, " + name + " should be " + type_names[i])
+        )
+    ),    
+
+    -- Integration test, interpolation schemes are tested in depth in MappedAttributeBuilderTests.
+    function test_uv_interpolation_schemes = (
+        -- Cylinder -> face varying
+        local c = Cylinder()
+        c.name = "cylinder"
+        c.mapCoords = true -- generate basic uvs
+        
+        -- Plane -> Vertex 
+        local p = plane()
+        p.name = "plane"
+        p.mapCoords = true -- generate basic uvs
+        
+        local exportPath = output_prefix + "test_uv_interpolation_schemes.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        local usdCylinder = stage.GetPrimAtPath("/" + c.name)
+    
+        assert_true (pyUsd.Prim.IsValid(usdCylinder)) message:"The cylinder was not exported to a USD prim as expected."
+        assert_true (usdCylinder.IsA(pyUsdGeom.Mesh)) message:"The cylinder prim is not a mesh."
+        
+        local mainUvsName = exportOptions.GetChannelPrimvarName 1
+            
+        local primvarApi = pyUsdGeom.PrimvarsAPI(usdCylinder)
+        assert_true (primvarApi.HasPrimvar(mainUvsName))            
+        local st = primvarApi.GetPrimvar(mainUvsName)
+        assert_equal "faceVarying" (st.GetInterpolation())
+
+        local usdPlane = stage.GetPrimAtPath("/" + p.name)
+        assert_true (pyUsd.Prim.IsValid(usdPlane)) message:"Thecylinder was not exported to a USD prim as expected."
+        assert_true (usdPlane.IsA(pyUsdGeom.Mesh)) message:"The cylinder prim is not a mesh."
+        
+        primvarApi = pyUsdGeom.PrimvarsAPI(usdPlane)
+        assert_true (primvarApi.HasPrimvar(mainUvsName))
+        st = primvarApi.GetPrimvar(mainUvsName)
+        assert_equal "vertex" (st.GetInterpolation())
+    ),
+    
+    -- Unless autoExpandType is set to false by the user via script, we check if the data "fits". For example, if "W" (Z) is used
+    -- in a channel, but the target primvar type is not 3 dimensional (floatArray, float2array or texcoord2fArray...) 
+    -- we would loose information. In those cases, we bump the type to the higher dimension type required to avoid this loss.
+    function data_type_bump_test = (
+        local uvPrimvarName = "uvs"
+        -- Start with autoExpandType:true
+        exportOptions.SetChannelPrimvarMapping 1 uvPrimvarName type:#texcoord2fArray autoExpandType:true
+        assert_true (exportOptions.GetChannelPrimvarAutoExpandType 1)
+        
+        local t = teapot()
+        t.mapCoords = true -- generate basic uvs
+        
+        local exportPath = output_prefix + "data_type_bump_test.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        
+        -- The main UV channel should have been exported as a texcoord2fArray, as W is not used.
+        local usdTeapot = stage.GetPrimAtPath("/" + t.name)
+        assert_true (pyUsd.Prim.IsValid(usdTeapot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeapot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        local primvarApi = pyUsdGeom.PrimvarsAPI(usdTeapot)
+        assert_true (primvarApi.HasPrimvar(uvPrimvarName)) message:"The main UV channel was not exported to the expected primvar."
+        local primvar = primvarApi.GetPrimvar(uvPrimvarName)
+        assert_equal "texCoord2f[]" (primvar.GetTypeName() as string)
+        
+        -- Now add an offset in W...now the type should be bumped to a texcoord3fArray, to avoid any loss.
+        local uvwXformMod = uvw_xform()
+        uvwXformMod.W_Offset = 10
+        addModifier t uvwXformMod
+        exportPath = output_prefix + "data_type_bump_test_w_offset.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeapot = stage.GetPrimAtPath("/" + t.name)
+        assert_true (pyUsd.Prim.IsValid(usdTeapot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeapot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        primvarApi = pyUsdGeom.PrimvarsAPI(usdTeapot)
+        assert_true (primvarApi.HasPrimvar(uvPrimvarName)) message:"The main UV channel was not exported to the expected primvar."
+        primvar = primvarApi.GetPrimvar(uvPrimvarName)
+        assert_equal "texCoord3f[]" (primvar.GetTypeName() as string)
+        
+        -- Now try forcing the type, W should now be ignored and we should get back to a #texcoord2fArray
+        exportOptions.SetChannelPrimvarMapping 1 uvPrimvarName type:#texcoord2fArray autoExpandType:false
+        assert_false (exportOptions.GetChannelPrimvarAutoExpandType 1)            
+        exportPath = output_prefix + "data_type_bump_test_force_type.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeapot = stage.GetPrimAtPath("/" + t.name)
+        assert_true (pyUsd.Prim.IsValid(usdTeapot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeapot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        primvarApi = pyUsdGeom.PrimvarsAPI(usdTeapot)
+        assert_true (primvarApi.HasPrimvar(uvPrimvarName)) message:"The main UV channel was not exported to the expected primvar."
+        primvar = primvarApi.GetPrimvar(uvPrimvarName)
+        assert_equal "texCoord2f[]" (primvar.GetTypeName() as string)
+    ),
+    
+    -- Test that the export of channels to primvars can be disabled per-channel.
+    function test_exclude_channel_from_export = (
+        local t = teapot()
+        t.mapCoords = true -- generate basic uvs
+        
+        local targetName = exportOptions.GetChannelPrimvarName 1
+        -- Disable the export of channel 1
+        exportOptions.SetChannelPrimvarMapping 1 undefined
+        assert_undefined (exportOptions.GetChannelPrimvarName 1)
+        
+        local exportPath = output_prefix + "test_exclude_channel_from_export_channel1_off.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        usdTeapot = stage.GetPrimAtPath("/" + t.name)
+        assert_true (pyUsd.Prim.IsValid(usdTeapot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeapot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        local primvarApi = pyUsdGeom.PrimvarsAPI(usdTeapot)
+        assert_false (primvarApi.HasPrimvar(targetName)) message:"The main UV channel was disabled and should not have been exported."
+        
+        -- Now renable the export of channel one...
+        exportOptions.SetChannelPrimvarMapping 1 targetName
+        exportPath = output_prefix + "test_exclude_channel_from_export_channel1_on.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        stage = pyUsd.Stage.Open(exportPath)
+        usdTeapot = stage.GetPrimAtPath("/" + t.name)
+        assert_true (pyUsd.Prim.IsValid(usdTeapot)) message:"The teapot was not exported to a USD prim as expected."
+        assert_true (usdTeapot.IsA(pyUsdGeom.Mesh)) message:"The teapot prim is not a mesh."
+        primvarApi = pyUsdGeom.PrimvarsAPI(usdTeapot)
+        targetName = exportOptions.GetChannelPrimvarName 1
+        assert_true (primvarApi.HasPrimvar(targetName)) message:"The main UV channel was not exported to the expected primvar."
+    ),
+    
+    function test_channel_config_getters_validation = (
+        local exportOptions = USDExporter.CreateOptions()
+        local exceptionThrown = false
+        try (
+            exportOptions.GetChannelPrimvarName -3
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting to get the primvar name of an unmapped/invalid channel."
+        
+        local exceptionThrown = false
+        try (
+            exportOptions.GetChannelPrimvarType -3
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting to get the primvar type of an unmapped/invalid channel."
+        
+        local exceptionThrown = false
+        try (
+            exportOptions.GetChannelPrimvarAutoExpandType -3
+        )
+        catch 
+        (
+            exceptionThrown = true
+        )
+        assert_true exceptionThrown message:"No exception was thrown when attempting to get the autoExpandType of an unmapped/invalid channel."
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_set_defaults_mapchannel_output,
+        test_bad_mapchannel_output, 
+        test_uv_interpolation_schemes,
+        test_channel_mapping_config,
+        data_type_bump_test,
+        test_exclude_channel_from_export,
+        test_channel_config_getters_validation)
+)
+
+runUsdTestFixture map_channel_export_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/materialX_ShaderWriter_test.ms b/src/Tests/Integration/materialX_ShaderWriter_test.ms
new file mode 100644
index 0000000..9e5b332
--- /dev/null
+++ b/src/Tests/Integration/materialX_ShaderWriter_test.ms
@@ -0,0 +1,175 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyUsdTf = python.import("pxr.Tf")
+pyShade = python.import("pxr.UsdShade")
+pysdf = python.import("pxr.Sdf")
+pyGf = python.import("pxr.Gf")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/MTLX_SHADER_WRITER_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+deleteTestFiles(output_prefix + "\\materials\\AnotherSubFolder\\*.*")
+deleteTestFiles(output_prefix + "\\models\\*.*")
+
+struct materialX_shader_writer_test
+( 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+    
+    function validateUsdMtlx stage = (
+        
+        local mtlxMatPrim = stage.GetPrimAtPath("/root/mtl/matTeapot001")
+        assert_true (mtlxMatPrim.IsValid())
+        assert_true (mtlxMatPrim.IsA(pyShade.Material))
+        local mtlxShaderPrim = stage.GetPrimAtPath("/root/mtl/matTeapot001/Materials/Iberian_Blue_Ceramic_Tiles/ND_standard_surface_surfaceshader")
+        assert_true (mtlxShaderPrim.IsValid())
+        assert_true (mtlxShaderPrim.IsA(pyShade.Shader))
+    ),
+    
+    --- Validate that the relative path added to the reference the MaterialX document is valid 
+    --- when exporting to a separate material layer not at the same location than the main layer.
+    --- Using the Custom Attributes
+    function test_export_material_separate_file_different_depth_CA = (
+
+        local teapot001 = teapot name:"teapot001"
+
+        local mtl1 = MaterialXMaterial()
+        mtl1.name = "matTeapot001"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtl1.importMaterial mtlxDoc
+        teapot001.material = mtl1
+
+        select $*
+        macros.run "USD" "AddUsdCustomAttrToObjectSelection"
+        custAttrFileName = output_prefix + "\\materials\\AnotherSubFolder\\testExportMaterialSeparateFileMaterial.usda"
+        mtl1.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl1.UsdMaterialAttributeHolder.separateLayer = true
+        mtl1.UsdMaterialAttributeHolder.filePath = custAttrFileName
+        mtl1.UsdMaterialAttributeHolder.primPath = "mtl"
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.AllMaterialTargets = #("MaterialX")
+
+        local exportPath = output_prefix + "\\models\\testExportMaterialSeparateFileModel.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+        validateUsdMtlx stage
+    ),
+    
+    --- Validate that the relative path added to the reference the MaterialX document is valid 
+    --- when exporting to a separate layer
+    --- Using the Custom Attributes
+    function test_export_material_separate_file_CA = (
+
+        local teapot001 = teapot name:"teapot001"
+
+        local mtl1 = MaterialXMaterial()
+        mtl1.name = "matTeapot001"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtl1.importMaterial mtlxDoc
+        teapot001.material = mtl1
+
+        select $*
+        macros.run "USD" "AddUsdCustomAttrToObjectSelection"
+        custAttrFileName = output_prefix + "testExportMaterialSeparateFileMaterial.usda"
+        mtl1.UsdMaterialAttributeHolder.pathMethod = 2
+        mtl1.UsdMaterialAttributeHolder.separateLayer = true
+        mtl1.UsdMaterialAttributeHolder.filePath = custAttrFileName
+        mtl1.UsdMaterialAttributeHolder.primPath = "mtl"
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.AllMaterialTargets = #("MaterialX")
+
+        local exportPath = output_prefix + "testExportMaterialSeparateFileModel.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+            
+        validateUsdMtlx stage
+    ),
+    
+    --- Export a materialX material to the main layer
+    function test_export_material = (
+        
+        local teapot001 = teapot name:"teapot001"
+
+        local mtl1 = MaterialXMaterial()
+        mtl1.name = "matTeapot001"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtl1.importMaterial mtlxDoc
+        teapot001.material = mtl1
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.AllMaterialTargets = #("MaterialX")
+
+        local exportPath = output_prefix + "testExportMaterial.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+            
+        validateUsdMtlx stage
+    ),
+    
+    -- Export a materialX material to the separate material layer
+    function test_export_material_separate_file = (
+        
+        local teapot001 = teapot name:"teapot001"
+
+        local mtl1 = MaterialXMaterial()
+        mtl1.name = "matTeapot001"
+        local scriptDir = getFilenamePath (getThisScriptFilename())
+        local mtlxDoc = (scriptDir + @"data\Iberian_Blue_Ceramic_Tiles_1k_8b\Iberian_Blue_Ceramic_Tiles.mtlx")
+        mtl1.importMaterial mtlxDoc
+        teapot001.material = mtl1
+
+        local exportOptions = USDExporter.CreateOptions()
+        exportOptions.FileFormat = #ascii
+        exportOptions.AllMaterialTargets = #("MaterialX")
+        exportOptions.UseSeparateMaterialLayer = true
+        
+        local exportPath = output_prefix + "testExportMaterialSeparateFile.usda"
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+        local stage = pyUsd.Stage.Open(exportPath)
+            
+        validateUsdMtlx stage
+    ),
+
+    function teardown = (
+    ),
+
+    Tests = #(
+        test_export_material_separate_file_CA,
+        test_export_material_separate_file_different_depth_CA,
+        test_export_material,
+        test_export_material_separate_file
+        )
+)
+
+runUsdTestFixture materialX_shader_writer_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/material_export_xref_test.ms b/src/Tests/Integration/material_export_xref_test.ms
new file mode 100644
index 0000000..fd0bc68
--- /dev/null
+++ b/src/Tests/Integration/material_export_xref_test.ms
@@ -0,0 +1,71 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Some useful python modules for USD validation.
+pyUsd = python.import("pxr.Usd")
+pyShade = python.import("pxr.UsdShade")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/USD_EXPORT_XREF_MATERIAL_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+Struct usd_export_xref_material_test
+(
+    private
+    temp_xref_child = (pathConfig.removePathLeaf (getSourceFileName())) + "/resources/box_with_physical_material.max",
+    temp_usd_file = output_prefix + "xref_export.usd",
+    exportOptions = USDExporter.CreateOptions(),
+
+    public
+    function setup =
+    (
+        resetMaxFile #noprompt
+        exportOptions.FileFormat = #ascii
+        exportOptions.RootPrimPath = "/"
+        exportOptions.Materials = true
+    ),
+    
+    -- This function validates that xref material value are exported correctly
+    function test_material_export_xref =
+    (
+        -- Add known test file which contains a box and a physical material that was setup with the values inside the setupValuesOnPhysMtl utility function. 
+        nodeAdded = xrefs.addNewXrefObject temp_xref_child "XrefBox"
+        xref_mat = nodeAdded.material
+        
+        -- Export to usd
+        UsdExporter.ExportFile temp_usd_file exportOptions:exportOptions contentSource:#nodeList nodeList:#($XrefBox)       
+        
+        -- Validate the correct material value have been exported
+        local stage = pyUsd.Stage.Open(temp_usd_file)
+        local shaderPrim = pyShade.Shader.Get stage "/mtl/usdPhysTestMtl/usdPhysTestMtl"
+        validateValueOnPhysMtl shaderPrim
+    ),
+    
+    function tearDown =
+    (
+        format "Framework teardown...\n"
+    ),
+
+    Tests = #(
+        test_material_export_xref
+    )
+)
+
+runUsdTestFixture usd_export_xref_material_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/material_opacity_threshold_test.ms b/src/Tests/Integration/material_opacity_threshold_test.ms
new file mode 100644
index 0000000..0b9f063
--- /dev/null
+++ b/src/Tests/Integration/material_opacity_threshold_test.ms
@@ -0,0 +1,81 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyShade = python.import("pxr.UsdShade")
+pyVt = python.import("pxr.Vt")
+    
+output_prefix = pathConfig.appendPath (getDir #temp) "/MATERIAL_OPACITY_THRESHOLD_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct material_opacity_threshold_test
+(
+    private
+    exportOptions = USDExporter.CreateOptions(),
+    importOptions = USDImporter.CreateOptions(),
+    public
+    function setup =
+    (
+        exportOptions.FileFormat = #ascii
+        exportOptions.Materials = true
+        resetmaxfile #noprompt
+    ),
+
+    -- This function validates that opacity threshold value is saved at export
+    function test_opacity_threshold =
+    (
+        local exportPath = output_prefix + "opacity_threshold_test.usda"
+        -- Populate the scene
+        local myBox = Box pos:[0,0,0] width:50 length:50 height:50 name: "myBox"
+        
+        -- Assign same matId to every face
+        convertto myBox editable_poly
+        numFaces = (getNumFaces myBox)
+        polyop.SetFaceMatID myBox #(1,2,3,4,5,6) 3
+        
+        -- Assign material
+        myBox.material = MaxUsdPreviewSurface ()
+        myBox.material.opacityThreshold = 0.5
+
+        -- Export file
+        USDExporter.ExportFile exportPath exportOptions:exportOptions
+
+        resetMaxFile #noprompt 
+
+        -- Import file
+        USDImporter.ImportFile exportPath importOptions:importOptions
+
+        -- Validation
+        assert_equal 0.5 $myBox.material.opacityThreshold message: "Expected opacity threshold to be 0.5."
+    ),
+
+    function teardown = (
+        exportOptions.Reset()
+    ),
+
+    tests = #(
+        test_opacity_threshold
+        )
+)
+
+runUsdTestFixture material_opacity_threshold_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/options_serialization_test.ms b/src/Tests/Integration/options_serialization_test.ms
new file mode 100644
index 0000000..cf0b72a
--- /dev/null
+++ b/src/Tests/Integration/options_serialization_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct options_saving_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_options_saving = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import options_saving_test"
+        python.Execute "reload(options_saving_test)"
+
+        python_test = python.import("options_serialization_test")
+        results = python_test.run_tests()
+        processPythonUnittestResults results
+    ), 
+
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_options_saving
+    )
+)
+
+runUsdTestFixture export_texture_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/options_serialization_test.py b/src/Tests/Integration/options_serialization_test.py
new file mode 100644
index 0000000..4db83b8
--- /dev/null
+++ b/src/Tests/Integration/options_serialization_test.py
@@ -0,0 +1,199 @@
+#
+# Copyright 2024 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import pymxs
+import sys
+import os
+import glob
+import json
+
+import maxUsd
+from pxr import Usd, Sdf
+
+RT = pymxs.runtime
+
+mxs = pymxs.runtime
+NOPROMPT = mxs.Name("noprompt")
+test_dir = os.path.dirname(__file__)
+
+
+class TestOptionsSerialization(unittest.TestCase):
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        
+    #This test validates the serialization/deserialization of the export options
+    def test_export_options(self):
+        
+        maxVer = rt.maxversion()
+        
+        #Test Python interface
+        pyOpt = maxUsd.USDSceneBuilderOptions()
+        
+        pyOpt.SetTranslateMeshes(False)
+        pyOpt.SetTranslateShapes(False)
+        pyOpt.SetTranslateLights(False)
+        pyOpt.SetTranslateCameras(False)
+        pyOpt.SetTranslateMaterials(False)
+        pyOpt.SetTranslateSkin(True)
+        pyOpt.SetTranslateMorpher(True)
+        pyOpt.SetUsdStagesAsReferences(False)
+        pyOpt.SetTranslateHidden(False)
+        pyOpt.SetUseUSDVisibility(True)
+        pyOpt.SetAllowNestedGprims(True)
+        pyOpt.SetUseProgressBar(False)
+        pyOpt.SetUseLastResortUSDPreviewSurfaceWriter(False)
+        if (maxVer[0] > 26000):
+            pyOpt.SetMtlSwitcherExportStyle(maxUsd.MtlSwitcherExportStyle.ActiveMaterialOnly)
+        
+        rootPrim = "/foo/bar"
+        pyOpt.SetRootPrimPath(rootPrim)
+        pyOpt.SetOpenInUsdview(True)
+        
+        chasers = {"chaser1", "chaser2"}
+        pyOpt.SetChaserNames(chasers)
+        
+        allChaserArgsDict = {"chaser1":{"param1":"a", "param2":"b"}}
+        pyOpt.SetAllChaserArgs(allChaserArgsDict)
+        
+        pyOpt.SetChannelPrimvarType(1, maxUsd.PrimvarType.Color3fArray)
+        pyOpt.SetChannelPrimvarName(1, "foo")
+        pyOpt.SetChannelPrimvarAutoExpandType(1, True)
+        pyOpt.SetBakeObjectOffsetTransform(False)
+        pyOpt.SetPreserveEdgeOrientation(True)
+        pyOpt.SetMeshFormat(maxUsd.MeshFormat.PolyMesh)
+        pyOpt.SetNormalsMode(maxUsd.NormalsMode.AsAttribute)
+        
+        pyOpt.SetTimeMode(maxUsd.TimeMode.AnimationRange)
+        pyOpt.SetStartFrame(10)
+        pyOpt.SetEndFrame(10)
+        pyOpt.SetSamplesPerFrame(5)
+        
+        allMaterialConversions = {'foo', 'bar'}
+        pyOpt.SetAllMaterialConversions(allMaterialConversions)
+        
+        pyOpt.SetMaterialLayerPath("MyMaterials.usda")
+        pyOpt.SetUseSeparateMaterialLayer(True)
+        pyOpt.SetMaterialPrimPath("MyMaterials")
+
+        pyOpt.SetBonesPrimName("MyBones")
+        pyOpt.SetAnimationsPrimName("MyAnimations")
+        
+        allChaserArgsDict = {"chaser1":{"param1":"a", "param2":"b"}}
+        pyOpt.SetAllChaserArgs(allChaserArgsDict)
+        
+        pyOpt.SetUpAxis(maxUsd.UpAxis.Y)
+        pyOpt.SetFileFormat(maxUsd.FileFormat.ASCII)
+        pyOpt.SetLogLevel(maxUsd.LogLevel.Error)
+        logPath = "C:\\foo\\bar.log"
+        pyOpt.SetLogPath(logPath)
+        
+        pyS = pyOpt.Serialize()
+        pyOptLoaded = maxUsd.USDSceneBuilderOptions(pyS)        
+        
+        self.assertTrue(pyOptLoaded.GetTranslateMorpher())
+        self.assertTrue(pyOptLoaded.GetTranslateSkin())
+        self.assertFalse(pyOptLoaded.GetTranslateMaterials())
+        self.assertFalse(pyOptLoaded.GetTranslateCameras())
+        self.assertFalse(pyOptLoaded.GetTranslateLights())
+        self.assertFalse(pyOptLoaded.GetTranslateShapes())
+        self.assertFalse(pyOptLoaded.GetTranslateMeshes())
+        self.assertFalse(pyOptLoaded.GetUsdStagesAsReferences())
+        self.assertFalse(pyOptLoaded.GetTranslateHidden())
+        self.assertTrue(pyOptLoaded.GetUseUSDVisibility())
+        self.assertTrue(pyOptLoaded.GetAllowNestedGprims())        
+        self.assertEqual(rootPrim, pyOptLoaded.GetRootPrimPath())
+        self.assertTrue(pyOptLoaded.GetOpenInUsdview())
+        self.assertFalse(pyOptLoaded.GetUseProgressBar())
+        self.assertFalse(pyOptLoaded.GetUseLastResortUSDPreviewSurfaceWriter())
+        
+        self.assertEqual(chasers, pyOptLoaded.GetChaserNames())
+        self.assertEqual(allChaserArgsDict, pyOptLoaded.GetAllChaserArgs())
+        self.assertEqual(maxUsd.PrimvarType.Color3fArray, pyOptLoaded.GetChannelPrimvarType(1))
+        self.assertEqual("foo", pyOptLoaded.GetChannelPrimvarName(1))
+        self.assertTrue(pyOptLoaded.GetChannelPrimvarAutoExpandType(1))
+        self.assertEqual(maxUsd.MeshFormat.PolyMesh, pyOptLoaded.GetMeshFormat())
+        self.assertEqual(maxUsd.NormalsMode.AsAttribute, pyOptLoaded.GetNormalsMode())
+        self.assertEqual(maxUsd.TimeMode.AnimationRange, pyOptLoaded.GetTimeMode())
+        self.assertEqual(10, pyOptLoaded.GetStartFrame())
+        self.assertEqual(10, pyOptLoaded.GetEndFrame())
+        self.assertEqual(5, pyOptLoaded.GetSamplesPerFrame())
+        self.assertEqual(allMaterialConversions, pyOptLoaded.GetAllMaterialConversions())
+        self.assertEqual("MyMaterials.usda", pyOptLoaded.GetMaterialLayerPath())
+        self.assertTrue(pyOptLoaded.GetUseSeparateMaterialLayer())
+        self.assertEqual("MyMaterials", pyOptLoaded.GetMaterialPrimPath())
+        self.assertEqual("MyBones", pyOptLoaded.GetBonesPrimName())
+        self.assertEqual("MyAnimations", pyOptLoaded.GetAnimationsPrimName())
+        
+        self.assertEqual(maxUsd.UpAxis.Y, pyOptLoaded.GetUpAxis())
+        self.assertEqual(maxUsd.FileFormat.ASCII, pyOptLoaded.GetFileFormat())
+        self.assertEqual(maxUsd.LogLevel.Error, pyOptLoaded.GetLogLevel())
+        self.assertEqual(logPath, pyOptLoaded.GetLogPath())
+        
+        if (maxVer[0] > 26000):
+            self.assertEqual(maxUsd.MtlSwitcherExportStyle.ActiveMaterialOnly, pyOptLoaded.GetMtlSwitcherExportStyle())
+        
+    def test_import_options(self):
+        
+        pyOpt = maxUsd.MaxSceneBuilderOptions()
+        pyOpt.SetStageMaskPaths(['/root'])
+        pyOpt.SetStageInitialLoadSet(Usd.Stage.LoadNone)
+        pyOpt.SetPreferredMaterial("fooMaterial")
+        pyOpt.SetMetaData({1,2,3})
+        
+        pyOpt.SetImportUnmappedPrimvars(False)
+        pyOpt.SetPrimvarChannel('st1', 3)
+        pyOpt.SetUseProgressBar(False)
+        
+        chasers = {"chaser1", "chaser2"}
+        pyOpt.SetChaserNames(chasers)
+        
+        allChaserArgsDict = {"chaser1":{"param1":"a", "param2":"b"}}
+        pyOpt.SetAllChaserArgs(allChaserArgsDict)
+        
+        contexts = {"context1", "context2"}
+        pyOpt.SetContextNames(contexts)
+        
+        shadingModes = [{"materialConversion": "UsdPreviewSurface","mode": "useRegistry"}, {"materialConversion": "test", "mode": "me"}]
+        pyOpt.SetShadingModes(shadingModes)
+        
+        pyS = pyOpt.Serialize()
+        pyOptLoaded = maxUsd.MaxSceneBuilderOptions(pyS)
+        self.assertEqual([Sdf.Path('/root')], pyOptLoaded.GetStageMaskPaths())
+        self.assertEqual(Usd.Stage.LoadNone, pyOptLoaded.GetStageInitialLoadSet())
+        self.assertEqual("fooMaterial", pyOptLoaded.GetPreferredMaterial())
+        self.assertEqual({1,2,3}, pyOptLoaded.GetMetaData())
+        
+        self.assertFalse(pyOptLoaded.GetImportUnmappedPrimvars())
+        self.assertEqual(3, pyOptLoaded.GetPrimvarChannel('st1'))
+        self.assertFalse(pyOptLoaded.GetUseProgressBar())
+        
+        self.assertEqual(chasers, pyOptLoaded.GetChaserNames())
+        self.assertEqual(allChaserArgsDict, pyOptLoaded.GetAllChaserArgs())
+        self.assertEqual(contexts, pyOptLoaded.GetContextNames())
+        
+        self.assertEqual(shadingModes, pyOptLoaded.GetShadingModes())
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestOptionsSerialization))
+
+if __name__ == "__main__":
+    from importlib import reload
+    import usd_utils
+    reload(usd_utils)
+    usd_utils.get_config_data(update=True)
+    mxs.clearListener()
+    run_tests()
+    
\ No newline at end of file
diff --git a/src/Tests/Integration/plugin_test.ms b/src/Tests/Integration/plugin_test.ms
new file mode 100644
index 0000000..436aa3b
--- /dev/null
+++ b/src/Tests/Integration/plugin_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+struct plugin_test
+(
+    function setup =
+    (
+    ),
+
+    function testImportPluginDetected = (
+        assert_not_equal -1 (getUsdImporterPluginIndex()) message:"USDImport.dli not found"
+    ),
+
+    function testExportPluginDetected = (
+        assert_not_equal -1 (getUsdExporterPluginIndex()) message:"USDExport.dle not found"
+    ),
+
+    function testUsdUtilsExists = (
+        usdBinPath = getUsdBinPath()
+        usdviewPath = pathConfig.appendPath usdBinPath "usdview.cmd"
+        
+        local usdcatPath
+        -- In more recent versions of USD (starting in 23.08), usdcat was ported to c++.
+        maxver = maxVersion()
+        if maxver[1] <= 26000 then (
+            -- 2024 RC and before
+            usdcatPath = pathConfig.appendPath usdBinPath "usdcat.cmd"
+        )
+        else (
+            -- 2025 builds is when we introduce 23.08
+            usdcatPath = pathConfig.appendPath usdBinPath "usdcat.exe"
+        )
+        
+        pysys = python.import("sys")
+        if pysys.version_info.major == 3 do (
+            --usdview is only available with python3 due to issues with getting pyside2uic.exe in max's python2
+            assert_not_equal 0 ((getFiles usdviewPath).count) message:("usdview.cmd not found at " + usdviewPath)
+        )
+
+        assert_not_equal 0 ((getFiles usdcatPath).count) message:("usdcat.cmd not found at " + usdcatPath)
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(testImportPluginDetected, testExportPluginDetected, testUsdUtilsExists)
+)
+
+runUsdTestFixture plugin_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/prim_reader_test.ms b/src/Tests/Integration/prim_reader_test.ms
new file mode 100644
index 0000000..525218d
--- /dev/null
+++ b/src/Tests/Integration/prim_reader_test.ms
@@ -0,0 +1,70 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct prim_reader_test
+(  
+    private 
+    test_python_path,
+    initialUnits,
+    initialScale,
+
+    public 
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function prim_reader_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import prim_reader_test"
+        python.Execute "reload(prim_reader_test)"
+        -- Run tests.
+        test = python.import("prim_reader_test")
+        results = test.run_tests()
+        
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+    
+    Tests = #(
+        prim_reader_test
+    )
+)
+
+runUsdTestFixture prim_reader_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/prim_reader_test.py b/src/Tests/Integration/prim_reader_test.py
new file mode 100644
index 0000000..153a08f
--- /dev/null
+++ b/src/Tests/Integration/prim_reader_test.py
@@ -0,0 +1,577 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys, os
+
+import usd_test_helpers
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom, UsdUtils, Sdf, Plug
+
+# A prim reader used to test that all overriden methods are called into and 
+# their results used. Each implemented methods sets a static variable used 
+# to validate that the method is indeed called into by the system. A similar approach is 
+# used to validate the received method parameters - for example
+# TestReader.SphereNodeHandle is set from the test method to the exported node's 
+# handle value.
+class TestReader(maxUsd.PrimReader):
+    InstancesCreated = []
+    
+    def Read(self):
+        TestReader.Read_Called = True
+
+        usdPrim = self.GetUsdPrim()
+        box = UsdGeom.Cube(usdPrim)
+        length = box.GetSizeAttr().Get()
+
+        # create box node and attach newly created node to its parents if any
+        parentHandle = self.GetJobContext().GetNodeHandle(usdPrim.GetPath().GetParentPath(), False)
+        if (parentHandle):
+            node = rt.box(length=length, width=length, height=length, name=usdPrim.GetName(), parent=rt.GetAnimByHandle(parentHandle))
+        else:
+            node = rt.box(length=length, width=length, height=length, name=usdPrim.GetName())
+
+        self.GetJobContext().RegisterCreatedNode(usdPrim.GetPath(), rt.GetHandleByAnim(node))
+        
+        # forcing a 30 degrees Z rotation on import
+        # need to feed the correction as a list of point3
+        self.ReadXformable([[0.866025,0.5,0], [-0.5,0.866025,0], [0,0,1], [0,0,0]])
+
+        return True
+    
+    def HasPostReadSubtree(self):
+        return True
+        
+    def PostReadSubtree(self):
+        TestReader.PostRead_Called = True
+        
+    def InstanceCreated(self, prim, nodeHandle):
+        TestReader.InstancesCreated.append(prim)
+        TestReader.InstanceCreated_Called = True
+    
+    @classmethod
+    def CanImport(cls, args, prim):
+        TestReader.CanImport_Called = True
+
+        try: 
+            # Test import options access.
+            options = args
+            rt.assert_equal(True, options.GetTranslateMaterials())
+            rt.assert_equal(Usd.Stage.LoadAll, options.GetStageInitialLoadSet())
+            rt.assert_equal(str(0.0), str(options.GetStartTimeCode()))
+            rt.assert_equal(1, len(options.GetShadingModes()))
+            rt.assert_equal("useRegistry", options.GetShadingModes()[0]['mode'])
+            rt.assert_equal("UsdPreviewSurface", options.GetShadingModes()[0]['materialConversion'])
+            rt.assert_equal("none", options.GetPreferredMaterial())
+            rt.assert_equal(1, len(options.GetStageMaskPaths()))
+            rt.assert_equal("/", str(options.GetStageMaskPaths()[0]))
+            rt.assert_equal(str({0,1,2}), str(options.GetMetaData()))
+            rt.assert_equal((rt.getDir(rt.name('temp')) + '\\MaxUsdImport.log'), options.GetLogPath())
+            rt.assert_equal(maxUsd.LogLevel.Off, options.GetLogLevel())
+            rt.assert_equal(True, options.GetImportUnmappedPrimvars())
+            
+            rt.assert_equal(500, len(options.GetMappedPrimvars()))
+            rt.assert_equal("displayOpacity", options.GetMappedPrimvars()[0])
+            rt.assert_equal(True, options.IsMappedPrimvar('displayOpacity'))
+            rt.assert_equal(-2, options.GetPrimvarChannel('displayOpacity'))
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Read() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            rt.assert_true(False, message="Python exposure of Import options not working as expected")
+
+        if prim.IsA(UsdGeom.Cube):
+            return maxUsd.PrimReader.ContextSupport.Supported
+        return maxUsd.PrimReader.ContextSupport.Unsupported
+
+class TestGeneralUsdGeomXformableReader(maxUsd.PrimReader):
+    def Read(self):
+        TestGeneralUsdGeomXformableReader.Read_Called = True
+
+        usdPrim = self.GetUsdPrim()
+        sphere = UsdGeom.Sphere(usdPrim)
+
+        # create sphere node and attach newly created node to its parents if any
+        parentHandle = self.GetJobContext().GetNodeHandle(usdPrim.GetPath().GetParentPath(), False)
+        if (parentHandle):
+            node = rt.sphere(name=usdPrim.GetName(), parent=rt.GetAnimByHandle(parentHandle))
+        else:
+            node = rt.sphere(name=usdPrim.GetName())
+
+        def RadiusSetter(value, usdTimeCode, maxFrame) -> bool:
+            node.radius = value
+            return True
+        maxUsd.TranslationUtils.ReadUsdAttribute(sphere.GetRadiusAttr(),
+                                                 maxUsd.AnimatedAttributeHelper(RadiusSetter)(),
+                                                 self.GetJobContext())
+
+        self.GetJobContext().RegisterCreatedNode(usdPrim.GetPath(), rt.GetHandleByAnim(node))
+        self.ReadXformable()
+        
+        return True
+    
+    @classmethod
+    def CanImport(cls, args, prim):
+        if prim.IsA(UsdGeom.Sphere):
+            TestGeneralUsdGeomXformableReader.CanImportSphere_Called = True
+            return maxUsd.PrimReader.ContextSupport.Supported
+        return maxUsd.PrimReader.ContextSupport.Unsupported
+
+# UsdGeomMesh Reader overriding the default 3ds Max USD one written in C++
+# It also verifies the material assignment from Pyton
+class TestMeshReader(maxUsd.PrimReader):
+    @classmethod
+    def CanImport(cls, args, prim):
+        return maxUsd.PrimReader.ContextSupport.Supported
+
+    def Read(self):
+        try: 
+            usdPrim = self.GetUsdPrim()
+            usdMesh = UsdGeom.Mesh(usdPrim)
+
+            trimesh = rt.USDImporter.ConvertUsdMesh(UsdUtils.StageCache.Get().GetId(usdPrim.GetStage()).ToLongInt(), usdPrim.GetPath())
+            meshNode = rt.mesh(mesh=trimesh.mesh)
+            meshNode.name = usdPrim.GetName() + "_usd" # overriding the name for test purpose
+            # create editable mesh node and attach newly created node to its parents if any
+            parentHandle = self.GetJobContext().GetNodeHandle(usdPrim.GetPath().GetParentPath(), False)
+            if (parentHandle):
+                meshNode.parent = rt.GetAnimByHandle(parentHandle)
+            self.GetJobContext().RegisterCreatedNode(usdPrim.GetPath(), rt.GetHandleByAnim(meshNode))
+
+            # properly position the node
+            self.ReadXformable()
+
+            # assign material
+            maxUsd.TranslatorMaterial.AssignMaterial(self.GetArgs(), usdMesh, rt.GetHandleByAnim(meshNode), self.GetJobContext())
+            
+            return True
+
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Read() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            return False
+
+# Test class.
+class TestPrimReader(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("IMPORT_PRIM_READER_TEST_")
+
+    def tearDown(self):
+        pass
+
+    # test a reader registered for a GeomCube prim type
+    # the reader changes the default import orientation of the imported box
+    def test_cube_reader(self):
+        maxUsd.PrimReader.Unregister(TestReader, "UsdGeomCube")
+        maxUsd.PrimReader.Register(TestReader, "UsdGeomCube")
+
+        test_data_dir = os.path.dirname(__file__)
+        cube_file_path = (test_data_dir + "\\data\\cube_native.usda")
+
+        TestReader.Read_Called = False
+        TestReader.PostRead_Called = False
+        TestReader.CanImport_Called = False
+        TestReader.InstanceCreated_Called = False
+        TestReader.InstancesCreated = []
+
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+        
+        import_options = rt.UsdImporter.CreateOptions()
+        ret = rt.USDImporter.ImportFile(cube_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestReader.Read_Called)
+        self.assertTrue(TestReader.PostRead_Called)
+        self.assertTrue(TestReader.CanImport_Called)
+        self.assertFalse(TestReader.InstanceCreated_Called)
+        self.assertEqual(len(TestReader.InstancesCreated), 0)
+        self.assertEqual(rt.objects[0].name, 'box')
+        self.assertEqual(rt.objects[0].length, 4.0)
+        self.assertEqual(rt.objects[0].width, 4.0)
+        self.assertEqual(rt.objects[0].height, 4.0)
+        self.assertEqual(rt.objects[0].rotation, rt.Quat(rt.RotateZMatrix(-30)))
+
+        maxUsd.PrimReader.Unregister(TestReader, "UsdGeomCube")
+
+    # test a reader registered for a general xformable prim type but only import usd native spheres
+    def test_general_usd_geom_xformable_reader(self):
+        maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+        maxUsd.PrimReader.Register(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+
+        test_data_dir = os.path.dirname(__file__)
+        sphere_file_path = (test_data_dir + "\\data\\sphere_native.usda")
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        import_options = rt.UsdImporter.CreateOptions()
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        self.assertEqual(rt.objects[0].radius, 4.0)
+
+        #maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+
+    # test a reader with animated attributes on usd native spheres
+    #def test_general_usd_geom_xformable_reader_with_animated_attributes(self):
+        #maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+        #maxUsd.PrimReader.Register(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+        rt.resetMaxFile(rt.Name("noprompt"))
+
+        test_data_dir = os.path.dirname(__file__)
+        # file defines a UsdGeomSphere with its radius changing thru time
+        # at start at 0s = 8mm, 20s = 4mm and 40s = 16mm
+        sphere_file_path = (test_data_dir + "\\data\\sphere_native_animated.usda")
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        import_options = rt.UsdImporter.CreateOptions()
+        import_options.TimeMode = maxUsd.ImportTimeMode.CustomRange
+        import_options.StartTimeCode = 0
+        import_options.EndTimeCode = 60
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys.count, 3)
+        self.assertEqual(str(sphere_radius_controller.keys), '#keys(0f, 20f, 40f)')
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 8.0)
+        with pymxs.attime(20):
+            self.assertEqual(rt.objects[0].radius, 4.0)
+        with pymxs.attime(40):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+        with pymxs.attime(60):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+
+        rt.resetMaxFile(rt.Name("noprompt"))
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        # verify import of animation as a subset of the full time range of original
+        import_options.TimeMode = rt.Name("customRange")
+        import_options.StartTimeCode = 10
+        import_options.EndTimeCode = 60
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys.count, 3)
+        self.assertEqual(str(sphere_radius_controller.keys), '#keys(10f, 20f, 40f)')
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(10):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(20):
+            self.assertEqual(rt.objects[0].radius, 4.0)
+        with pymxs.attime(40):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+        with pymxs.attime(60):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+
+        maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+
+    # test a reader with animated attributes on usd native spheres
+    def test_general_usd_geom_xformable_reader_with_animated_attributes(self):
+        maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+        maxUsd.PrimReader.Register(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+
+        test_data_dir = os.path.dirname(__file__)
+        # file defines a UsdGeomSphere with its radius changing thru time
+        # at start at 0s = 8mm, 20s = 4mm and 40s = 16mm
+        sphere_file_path = (test_data_dir + "\\data\\sphere_native_animated.usda")
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        import_options = rt.UsdImporter.CreateOptions()
+        import_options.TimeMode = rt.Name("customRange")
+        import_options.StartTimeCode = 0
+        import_options.EndTimeCode = 60
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys.count, 3)
+        self.assertEqual(str(sphere_radius_controller.keys), '#keys(0f, 20f, 40f)')
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 8.0)
+        with pymxs.attime(20):
+            self.assertEqual(rt.objects[0].radius, 4.0)
+        with pymxs.attime(40):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+        with pymxs.attime(60):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+
+        # verify import of animation as a subset of the full time range of original
+        # starting inside animated range and ending outside of range
+        rt.resetMaxFile(rt.Name("noprompt"))
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        import_options.TimeMode = rt.Name("customRange")
+        import_options.StartTimeCode = 10
+        import_options.EndTimeCode = 60
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys.count, 3)
+        self.assertEqual(str(sphere_radius_controller.keys), '#keys(10f, 20f, 40f)')
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(10):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(20):
+            self.assertEqual(rt.objects[0].radius, 4.0)
+        with pymxs.attime(40):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+        with pymxs.attime(60):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+
+        # verify import of animation as a subset of the full time range of original
+        # inside two samples
+        rt.resetMaxFile(rt.Name("noprompt"))
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        import_options.TimeMode = rt.Name("customRange")
+        import_options.StartTimeCode = 5
+        import_options.EndTimeCode = 10
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys.count, 2)
+        self.assertEqual(str(sphere_radius_controller.keys), '#keys(5f, 10f)')
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 7.0)
+        with pymxs.attime(5):
+            self.assertEqual(rt.objects[0].radius, 7.0)
+        with pymxs.attime(10):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(20):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+        with pymxs.attime(40):
+            self.assertEqual(rt.objects[0].radius, 6.0)
+
+        # verify import of animation after the end of the animation range
+        rt.resetMaxFile(rt.Name("noprompt"))
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        TestGeneralUsdGeomXformableReader.Read_Called = False
+        TestGeneralUsdGeomXformableReader.CanImportSphere_Called = False
+
+        import_options.TimeMode = rt.Name("customRange")
+        import_options.StartTimeCode = 50
+        import_options.EndTimeCode = 60
+        ret = rt.USDImporter.ImportFile(sphere_file_path, importOptions=import_options)
+        
+        self.assertTrue(ret)
+
+        self.assertTrue(TestGeneralUsdGeomXformableReader.Read_Called)
+        self.assertTrue(TestGeneralUsdGeomXformableReader.CanImportSphere_Called)
+        self.assertEqual(rt.objects[0].name, 'sphere')
+        sphere_radius_controller = rt.getSubAnim(rt.getSubAnim(rt.objects[0], 4), 1)
+        self.assertEqual(sphere_radius_controller.keys, None)
+        with pymxs.attime(0):
+            self.assertEqual(rt.objects[0].radius, 16.0)
+
+        maxUsd.PrimReader.Unregister(TestGeneralUsdGeomXformableReader, "UsdGeomXformable")
+
+    # test loading a reader plugin
+    # the plugin loads to support a general 'UsdGeomGprim'; ancestor type to UsdGeomCone
+    def test_prim_reader_from_json(self):
+        pluginRegistry = Plug.Registry()
+        
+        scriptDir = os.path.dirname(os.path.realpath(__file__))
+        plugsFound = pluginRegistry.RegisterPlugins(scriptDir + "/pythonReader/plugInfo.json")
+        sys.path.insert(0, scriptDir + "/pythonReader/")
+
+        plugin = pluginRegistry.GetPluginWithName('primReaderFromJson')
+        self.assertNotEqual(None, plugin)
+        # Limitation of the USD plugin system - no way to unload a plugin. 
+        # This test assumes an "unloaded" state, so it will only run once per max session.
+        if plugin.isLoaded:
+            print("\nWarning test_prim_reader_from_json(), plugin is already loaded.")
+            
+        # Shared global used to make sure our Reader was called.
+        import jsonReaderGlobals 
+        jsonReaderGlobals.initialize()
+                     
+        rt.units.SystemType = rt.Name("Millimeters")
+        rt.units.SystemScale = 1
+
+        test_data_dir = os.path.dirname(__file__)
+        cone_file_path = (test_data_dir + "\\data\\cone_native.usda")
+        ret = rt.USDImporter.ImportFile(cone_file_path)
+        self.assertTrue(ret)
+        self.assertTrue(plugin.isLoaded)
+        self.assertTrue(jsonReaderGlobals.jsonPrimReader_read_called)
+        self.assertFalse(jsonReaderGlobals.jsonPrimReader_postread_called)
+        sys.path.remove(scriptDir + "/pythonReader/")
+
+    def test_prim_reader_instance(self):
+        maxUsd.PrimReader.Unregister(TestReader, "UsdGeomCube")
+        maxUsd.PrimReader.Register(TestReader, "UsdGeomCube")
+
+        test_usd_file_path = self.output_prefix + "test_prim_reader_instance.usda"
+        stage = Usd.Stage.CreateNew(test_usd_file_path)
+        classCube = stage.CreateClassPrim("/classCube")
+        refcube = UsdGeom.Cube.Define(stage, "/classCube/referenceCubeCube")
+        instance1 = UsdGeom.Xform.Define(stage, "/CubePrimInstance1")
+        instance2 = UsdGeom.Xform.Define(stage, "/CubePrimInstance2")
+
+        instance1.GetPrim().GetInherits().AddInherit("/classCube")
+        instance2.GetPrim().GetInherits().AddInherit("/classCube")
+
+        instance1.GetPrim().SetInstanceable(True)
+        instance2.GetPrim().SetInstanceable(True)
+
+        stage.GetRootLayer().Save()
+
+        TestReader.Read_Called = False
+        TestReader.PostRead_Called = False
+        TestReader.CanImport_Called = False
+        TestReader.InstanceCreated_Called = False
+        TestReader.InstancesCreated = []
+
+        import_options = rt.UsdImporter.CreateOptions()
+        ret = rt.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestReader.Read_Called)
+        self.assertTrue(TestReader.PostRead_Called)
+        self.assertTrue(TestReader.CanImport_Called)
+        self.assertTrue(TestReader.InstanceCreated_Called)
+        self.assertEqual(len(TestReader.InstancesCreated), 2)
+
+        maxUsd.PrimReader.Unregister(TestReader, "UsdGeomCube")
+
+    def test_material_assignment(self):
+        maxUsd.PrimReader.Unregister(TestMeshReader, "UsdGeomMesh")
+        maxUsd.PrimReader.Register(TestMeshReader, "UsdGeomMesh")
+
+        test_usd_file_path = self.output_prefix + "cube_wt_material.usda"
+        
+        # create meshes
+        test_trans = rt.Box(name="phys_trans_cube")
+        # create material for mesh
+        mat_name = "physical_trans_mat"
+        test_trans.material = rt.PhysicalMaterial(name=mat_name)
+        # set material settings
+        transparency_value = 0.9
+        test_trans.material.transparency = transparency_value
+        
+        # export
+        export_options = rt.USDExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = rt.USDExporter.ExportFile(
+            test_usd_file_path,
+            exportOptions=export_options,
+            contentSource=rt.Name("nodeList"),
+            nodeList=[test_trans],
+        )
+        self.assertTrue(ret)
+
+        # reset 3ds Max scene state
+        rt.resetMaxFile(rt.Name("noprompt"))
+
+        # import what was just exported
+        import_options = rt.UsdImporter.CreateOptions()
+        import_options.PreferredMaterial = "maxUsdPreviewSurface"
+        ret = rt.USDImporter.ImportFile(test_usd_file_path, importOptions=import_options)
+        self.assertTrue(ret)
+
+        # the special mesh reader appends '_usd' to the original prim name
+        # this is done to make sure the reader override works
+        # and that the imported material was done through the test mesh reader
+        self.assertEqual(len(rt.objects), 1)
+        max_node = rt.objects[0]
+        self.assertEqual(rt.ClassOf(max_node), rt.Editable_Mesh)
+        self.assertEqual(max_node.name, "phys_trans_cube_usd")
+        
+        self.assertEqual(len(rt.sceneMaterials), 1)
+        max_material = rt.sceneMaterials[0]
+        self.assertEqual(rt.ClassOf(max_material), rt.MaxUsdPreviewSurface)
+        self.assertEqual(max_material.name, "physical_trans_mat")
+        
+        maxUsd.PrimReader.Unregister(TestMeshReader, "UsdGeomMesh")
+
+    def test_enum_python_exposure(self):
+        self.assertTrue(hasattr(maxUsd.PrimReader.ContextSupport, 'Unsupported'))
+        self.assertTrue(hasattr(maxUsd.PrimReader.ContextSupport, 'Supported'))
+        self.assertTrue(hasattr(maxUsd.PrimReader.ContextSupport, 'Fallback'))
+
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestPrimReader))
+
+if __name__ == '__main__':
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/prim_writer_test.ms b/src/Tests/Integration/prim_writer_test.ms
new file mode 100644
index 0000000..7cdc7a6
--- /dev/null
+++ b/src/Tests/Integration/prim_writer_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct prim_writer_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function prim_writer_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import prim_writer_test"
+        python.Execute "reload(prim_writer_test)"
+        -- Run tests.
+        test = python.import("prim_writer_test")
+        results = test.run_tests()
+        
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        prim_writer_test
+    )
+)
+
+runUsdTestFixture prim_writer_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/prim_writer_test.py b/src/Tests/Integration/prim_writer_test.py
new file mode 100644
index 0000000..ed0f7dd
--- /dev/null
+++ b/src/Tests/Integration/prim_writer_test.py
@@ -0,0 +1,392 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys, os
+
+import usd_test_helpers
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom, Sdf, Plug
+
+# A prim writer used to test that all overriden methods are called into and 
+# their results used. Each implemented methods sets a static variable used 
+# to validate that the method is indeed called into by the system. A similar approach is 
+# used to validate the received method parameters - for example
+# TestWriter.SphereNodeHandle is set from the test method to the exported node's 
+# handle value.
+class TestWriter(maxUsd.PrimWriter):
+    
+    def GetPrimType(self):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        TestWriter.GetPrimType_Called = True
+        # Writer is writing to a sphere.
+        return "Sphere"
+        
+    def GetPrimName(self, suggestedName):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        # Because we specify "Always" as xform split requirement, expect the object suffix.
+        rt.assert_equal("Sphere001_TestSuffix", suggestedName)
+        TestWriter.GetPrimName_Called = True           
+        # Customize the name by just appening somethng to what the system suggests.
+        return suggestedName + "_foo"
+        
+    def GetObjectPrimSuffix(self):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        TestWriter.GetObjectPrimSuffix_Called = True        
+        return "TestSuffix"
+        
+    def HandlesObjectOffsetTransform(self):
+        TestWriter.HandleObjectOffsetTransform_Called = True
+        # This means we should expect no xformOp on the prim when we receive it in the write.
+        # Even if the node's object has an offset...
+        return True
+        
+    def RequiresXformPrim(self):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        TestWriter.RequireXformPrim_Called = True        
+        return maxUsd.PrimWriter.XformSplitRequirement.Always
+    
+    def RequiresMaterialAssignment(self):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        TestWriter.RequiresMaterialAssignment_Called = True                
+        return maxUsd.PrimWriter.MaterialAssignRequirement.Default
+        
+    def RequiresInstancing(self):
+        TestWriter.RequiresInstancing_Called = True                
+        return maxUsd.PrimWriter.InstancingRequirement.Default
+    
+    def Write(self, prim, applyObjectOffset, time):
+        nodeHandle = self.GetNodeHandle()
+        rt.assert_true(prim.IsA(UsdGeom.Xformable))
+        
+        nodesToPrims = self.GetNodesToPrims()
+        keys = list(nodesToPrims.keys())
+        rt.assert_equal(True, nodeHandle in keys)
+        # This writer splits the node into an xform + object prim.
+        # The prim in the map is the root prim for the node, but the writer receives
+        # the object prim. So expect the parent path of this prim in the map.
+        rt.assert_equal(str(prim.GetPath().GetParentPath()), str(nodesToPrims[nodeHandle]))
+
+        xformable = UsdGeom.Xformable(prim)
+        ops = xformable.GetOrderedXformOps()
+        rt.assert_equal(0, len(ops))
+        rt.assert_true(applyObjectOffset)
+        # Received prim should be a sphere (GetPrimType() -> "Sphere")
+        rt.assert_true(prim.IsA(UsdGeom.Sphere))
+        # We requested an xform prim, specified a suffix, and appended foo to the suggested name.
+        rt.assert_equal(str(prim.GetPath()), '/EXPORT_PRIM_WRITER_TEST_test_dummy_sphere_writer/Sphere001/Sphere001_TestSuffix_foo')
+        rt.assert_equal(TestWriter.SphereNodeHandle, nodeHandle)
+        TestWriter.Write_Called = True
+        return True
+    
+    def PostExport(self, prim):
+        rt.assert_equal(str(prim.GetPath()), '/EXPORT_PRIM_WRITER_TEST_test_dummy_sphere_writer/Sphere001/Sphere001_TestSuffix_foo')
+        TestWriter.PostExport_Called = True
+        return True
+    
+    def GetValidityInterval(self, time):
+        val = maxUsd.PrimWriter.GetValidityInterval(self, time)
+        TestWriter.GetValidityInterval_Called = True
+        return val
+
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        TestWriter.CanExport_Called = True
+        node = rt.maxOps.getNodeByHandle(nodeHandle)
+        if rt.classOf(node) == rt.Sphere:
+            return maxUsd.PrimWriter.ContextSupport.Supported
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+        
+
+# Simplest possible writer.
+# As it doesn't support anything, it just validating that
+# the execution of the base method of Write() can be called
+# correctly.
+class TestMinimalWriter(maxUsd.PrimWriter):
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+
+# Dummy writer to test the other default implementations. This 
+# writer tells the system it can convert everything - this way 
+# we ensure all the other base class methods are called into (as
+# the are not implemented here).
+class TestMinimalSupportedWriter(maxUsd.PrimWriter):
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        TestMinimalSupportedWriter.CanExport_Called = True
+        return maxUsd.PrimWriter.ContextSupport.Supported
+
+# Dummy to test export options exposure to the writers.
+class DummyExportArgsWriter(maxUsd.PrimWriter):        
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        try: 
+            # Test export options access.
+            options = exportArgs
+            rt.assert_equal(True, options.GetBakeObjectOffsetTransform())
+            rt.assert_equal(False, options.GetChannelPrimvarAutoExpandType(0))
+            rt.assert_equal("vertexColor", options.GetChannelPrimvarName(0))
+            rt.assert_equal(maxUsd.PrimvarType.Color3fArray, options.GetChannelPrimvarType(0))
+            rt.assert_equal("", options.GetConvertMaterialsTo())
+            rt.assert_equal(0, options.GetEndFrame())
+            rt.assert_equal(0, options.GetStartFrame())
+            rt.assert_equal(1, options.GetSamplesPerFrame())
+            rt.assert_equal(maxUsd.TimeMode.CurrentFrame, options.GetTimeMode())
+            rt.assert_equal(maxUsd.LogLevel.Off, options.GetLogLevel())
+            rt.assert_equal(maxUsd.MeshFormat.FromScene, options.GetMeshFormat())
+            rt.assert_equal(maxUsd.FileFormat.ASCII , options.GetFileFormat())
+            rt.assert_equal(maxUsd.NormalsMode.AsPrimvar, options.GetNormalsMode())
+            rt.assert_equal(False, options.GetOpenInUsdview())
+            rt.assert_equal(False, options.GetPreserveEdgeOrientation())
+            rt.assert_equal("/EXPORT_PRIM_WRITER_TEST_test_export_args_exposure_in_writer", str(options.GetRootPrimPath()))           
+            rt.assert_equal("useRegistry", options.GetShadingMode())
+            maxver = rt.maxversion()
+            if maxver[0] >= 26000:  # 3ds Max 2024 and up
+                rt.assert_equal(maxUsd.MtlSwitcherExportStyle.AsVariantSets, options.GetMtlSwitcherExportStyle())
+            rt.assert_equal(True, options.GetTranslateCameras())
+            rt.assert_equal(True, options.GetTranslateHidden())
+            rt.assert_equal(True, options.GetTranslateLights())
+            rt.assert_equal(True, options.GetTranslateMaterials())
+            rt.assert_equal(True, options.GetTranslateMeshes())
+            rt.assert_equal(True, options.GetTranslateShapes())
+            rt.assert_equal(maxUsd.UpAxis.Z, options.GetUpAxis())
+            rt.assert_equal(True, options.GetUsdStagesAsReferences())
+            rt.assert_equal(False, options.GetUseUSDVisibility())
+            rt.assert_equal(str({'UsdPreviewSurface'}), str(options.GetAllMaterialConversions()))
+            #The token in the default option value should be resolved at this point.
+            rt.assert_equal("EXPORT_PRIM_WRITER_TEST_test_export_args_exposure_in_writer_mtl.usda", options.GetMaterialLayerPath())
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            rt.assert_true(False, message="Python exposure of Export options not working as expected")
+            
+        return maxUsd.PrimWriter.ContextSupport.Supported
+        
+    def Write(self, prim, applyObjectOffset, time):
+            # Test the exported Filename and stage
+            rt.assert_equal(DummyExportArgsWriter.ExpectedPath, self.GetFilename())
+            rt.assert_not_equal(None, self.GetUsdStage())
+
+# Test class.
+class TestPrimWriter(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("EXPORT_PRIM_WRITER_TEST_")
+
+    def tearDown(self):
+        pass
+
+    def test_dummy_sphere_writer(self):
+        maxUsd.PrimWriter.Unregister(TestWriter, "dummySphereWriter")
+        maxUsd.PrimWriter.Register(TestWriter, "dummySphereWriter")
+        # Create a sphere to export.
+        sphereNode = rt.Sphere()
+        sphereNode.objectOffsetPos = rt.Point3(0, 0, 10)
+        
+        TestWriter.SphereNodeHandle = sphereNode.handle
+        
+        test_usd_file_path = self.output_prefix + "test_dummy_sphere_writer.usda"
+        
+        
+        TestWriter.GetPrimType_Called = False
+        TestWriter.GetPrimName_Called = False
+        TestWriter.GetObjectPrimSuffix_Called = False
+        TestWriter.HandleObjectOffsetTransform_Called = False
+        TestWriter.Write_Called = False
+        TestWriter.PostExport_Called = False
+        TestWriter.GetValidityInterval_Called = False
+        TestWriter.CanExport_Called = False
+        TestWriter.RequireXformPrim_Called = False
+        TestWriter.RequiresMaterialAssignment_Called = False
+        
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = ""
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(TestWriter.GetPrimType_Called)
+        self.assertTrue(TestWriter.GetPrimName_Called)
+        self.assertTrue(TestWriter.GetObjectPrimSuffix_Called)
+        self.assertTrue(TestWriter.HandleObjectOffsetTransform_Called)
+        self.assertTrue(TestWriter.GetValidityInterval_Called)
+        self.assertTrue(TestWriter.Write_Called)
+        self.assertTrue(TestWriter.PostExport_Called)
+        self.assertTrue(TestWriter.CanExport_Called)
+        self.assertTrue(TestWriter.RequireXformPrim_Called)      
+        self.assertTrue(TestWriter.RequiresMaterialAssignment_Called)
+        
+        maxUsd.PrimWriter.Unregister(TestWriter, "dummySphereWriter")
+        
+    def test_dummy_sphere_writer_not_used(self):
+        maxUsd.PrimWriter.Unregister(TestWriter, "dummySphereWriter")
+        maxUsd.PrimWriter.Register(TestWriter, "dummySphereWriter")
+        
+        # Create a sphere to export.
+        boxNode = rt.Box()
+                
+        test_usd_file_path = self.output_prefix + "test_dummy_sphere_writer_not_used.usda"
+        
+        TestWriter.GetPrimType_Called = False
+        TestWriter.GetPrimName_Called = False
+        TestWriter.GetObjectPrimSuffix_Called = False
+        TestWriter.GetValidityInterval_Called = False
+        TestWriter.HandleObjectOffsetTransform_Called = False
+        TestWriter.Write_Called = False
+        TestWriter.PostExport_Called = False
+        TestWriter.CanExport_Called = False
+        TestWriter.RequireXformPrim_Called = False
+        TestWriter.RequiresMaterialAssignment_Called = False
+        
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = ""
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+                
+        self.assertTrue(ret)
+        # Can convert is called (Can the writer convert the box?)
+        self.assertTrue(TestWriter.CanExport_Called)
+        # All other methods should not be called.
+        self.assertFalse(TestWriter.GetPrimType_Called)
+        self.assertFalse(TestWriter.GetPrimName_Called)
+        self.assertFalse(TestWriter.GetObjectPrimSuffix_Called)
+        self.assertFalse(TestWriter.GetValidityInterval_Called)
+        self.assertFalse(TestWriter.HandleObjectOffsetTransform_Called)
+        self.assertFalse(TestWriter.Write_Called)
+        self.assertFalse(TestWriter.PostExport_Called)
+        self.assertFalse(TestWriter.RequireXformPrim_Called)
+        self.assertFalse(TestWriter.RequiresMaterialAssignment_Called)
+        
+        maxUsd.PrimWriter.Unregister(TestWriter, "dummySphereWriter")
+
+    def test_minimal_writer(self):  
+        maxUsd.PrimWriter.Unregister(TestMinimalWriter, "dummyMinimalWriter")
+        maxUsd.PrimWriter.Register(TestMinimalWriter, "dummyMinimalWriter")
+
+        # Create a sphere to export.
+        boxNode = rt.Box()
+                
+        test_usd_file_path = self.output_prefix + "test_minimal_writer.usda"
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = ""
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+                
+        self.assertTrue(ret)
+        maxUsd.PrimWriter.Unregister(TestMinimalWriter, "dummyMinimalWriter")
+        
+    def test_minimal_supported_writer(self):
+        maxUsd.PrimWriter.Unregister(TestMinimalSupportedWriter, "dummyMinimalSupportedlWriter")
+        maxUsd.PrimWriter.Register(TestMinimalSupportedWriter, "dummyMinimalSupportedlWriter")
+        
+        boxNode = rt.Box()
+        test_usd_file_path = self.output_prefix + "test_minimal_supported_writer.usda"        
+        
+        TestMinimalSupportedWriter.CanExport_Called = False
+        
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = ""
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        
+        self.assertTrue(ret)
+        # Can convert is called (Can the writer conver the box?)
+        self.assertTrue(TestMinimalSupportedWriter.CanExport_Called)
+        
+        exportedStage = Usd.Stage.Open(test_usd_file_path)
+        boxPrim = exportedStage.GetPrimAtPath("/EXPORT_PRIM_WRITER_TEST_test_minimal_supported_writer/Box001")
+        self.assertTrue(boxPrim.IsValid())
+        self.assertTrue(boxPrim.IsA(UsdGeom.Xform))
+        maxUsd.PrimWriter.Unregister(TestMinimalSupportedWriter, "dummyMinimalSupportedlWriter")
+        
+    def test_export_args_exposure_in_writer(self):
+        maxUsd.PrimWriter.Unregister(DummyExportArgsWriter, "dummyExportArgsWriter")
+        maxUsd.PrimWriter.Register(DummyExportArgsWriter, "dummyExportArgsWriter")
+        # Create a sphere to export.
+        sphereNode = rt.Sphere()    
+        test_usd_file_path = self.output_prefix + "test_export_args_exposure_in_writer.usda"
+        DummyExportArgsWriter.ExpectedPath = test_usd_file_path
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = ""
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        self.assertTrue(ret)
+    
+        maxUsd.PrimWriter.Unregister(DummyExportArgsWriter, "dummyExportArgsWriter")
+    
+    def test_prim_writer_from_json(self):
+        pluginRegistry = Plug.Registry()
+        
+        scriptDir = os.path.dirname(os.path.realpath(__file__))
+        plugsFound = pluginRegistry.RegisterPlugins(scriptDir + "/pythonPrimWriter/plugInfo.json")
+        sys.path.insert(0, scriptDir + "/pythonPrimWriter/")
+
+        plugin = pluginRegistry.GetPluginWithName('primWriterFromJson')
+        self.assertNotEqual(None, plugin)
+        # Limitation of the USD plugin system - no way to unload a plugin. 
+        # This test assumes an "unloaded" state, so it will only run once per max session.
+        if not plugin.isLoaded:
+            plugin.Load()            
+            # Create a Cone to export.
+            sphereNode = rt.Cone()    
+            test_usd_file_path = self.output_prefix + "test_export_args_exposure_in_writer.usda"
+            export_options = rt.UsdExporter.CreateOptions()
+            export_options.FileFormat = rt.Name("ascii")
+            export_options.RootPrimPath = ""
+            
+            # Shared global used to make sure our writer was called.
+            import jsonWriterGlobals 
+            jsonWriterGlobals.initialize()
+                        
+            ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+            self.assertTrue(ret)
+            self.assertTrue(jsonWriterGlobals.jsonPrimWriter_write_called)
+        else:
+            print("\nWarning test_prim_writer_from_json() skipped, plugin is already loaded.")
+        sys.path.remove(scriptDir + "/pythonPrimWriter/")
+    
+    def test_enum_python_exposure(self):
+        self.assertTrue(hasattr(maxUsd.PrimWriter.ContextSupport, 'Unsupported'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.ContextSupport, 'Supported'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.ContextSupport, 'Fallback'))
+        
+        self.assertTrue(hasattr(maxUsd.PrimWriter.XformSplitRequirement, 'Always'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.XformSplitRequirement, 'ForOffsetObjects'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.XformSplitRequirement, 'Never'))
+        
+        self.assertTrue(hasattr(maxUsd.PrimWriter.MaterialAssignRequirement, 'Default'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.MaterialAssignRequirement, 'NoAssignment'))
+        
+        self.assertTrue(hasattr(maxUsd.PrimWriter.InstancingRequirement, 'Default'))
+        self.assertTrue(hasattr(maxUsd.PrimWriter.InstancingRequirement, 'NoInstancing'))
+        
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestPrimWriter))
+
+if __name__ == '__main__':
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonPrimWriter/jsonWriterGlobals.py b/src/Tests/Integration/pythonPrimWriter/jsonWriterGlobals.py
new file mode 100644
index 0000000..4d9edec
--- /dev/null
+++ b/src/Tests/Integration/pythonPrimWriter/jsonWriterGlobals.py
@@ -0,0 +1,23 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Simple script to expose a globals variable across primWriterFromJson.py
+# and prim_writer_test.py. 
+def initialize(): 
+    # Variable used to make sure that the Write() method of the prim writer
+    #implemented in primWriterFromJson is eventually called into.
+    global jsonPrimWriter_write_called
+    jsonPrimWriter_write_called = False
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonPrimWriter/plugInfo.json b/src/Tests/Integration/pythonPrimWriter/plugInfo.json
new file mode 100644
index 0000000..0d02290
--- /dev/null
+++ b/src/Tests/Integration/pythonPrimWriter/plugInfo.json
@@ -0,0 +1,13 @@
+{
+   "Plugins": [
+      {
+         "Info": {
+            "MaxUsd": {
+               "PrimWriter": {}
+            }
+         },
+         "Name": "primWriterFromJson",
+         "Type": "python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonPrimWriter/primWriterFromJson.py b/src/Tests/Integration/pythonPrimWriter/primWriterFromJson.py
new file mode 100644
index 0000000..4a0ebaf
--- /dev/null
+++ b/src/Tests/Integration/pythonPrimWriter/primWriterFromJson.py
@@ -0,0 +1,42 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdShade, UsdGeom
+import traceback
+import jsonWriterGlobals
+class WriterFromJson(maxUsd.PrimWriter):
+    
+    def GetPrimType(self):
+        return "Cone"
+        
+    def Write(self, prim, applyOffset, time):
+        # Do nothing in the write...except unregister the writer - this is so we only only
+        # execute this writer once part of it's associated test.
+        maxUsd.PrimWriter.Unregister(WriterFromJson, "writerFromJson")
+        jsonWriterGlobals.jsonPrimWriter_write_called = True
+        print(jsonPrimWriter_write_called)
+        return True
+
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        node = rt.maxOps.getNodeByHandle(nodeHandle)
+        if rt.classOf(node) == rt.Cone:
+            return maxUsd.PrimWriter.ContextSupport.Supported
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+		
+maxUsd.PrimWriter.Register(WriterFromJson, "writerFromJson")
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonReader/jsonReaderGlobals.py b/src/Tests/Integration/pythonReader/jsonReaderGlobals.py
new file mode 100644
index 0000000..4c2004e
--- /dev/null
+++ b/src/Tests/Integration/pythonReader/jsonReaderGlobals.py
@@ -0,0 +1,25 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Simple script to expose a globals variable across primReaderFromJson.py
+# and prim_reader_test.py. 
+def initialize(): 
+    # Variable used to make sure that the Read() method of the prim reader
+    #implemented in primWriterFromJson is eventually called into.
+    global jsonPrimReader_read_called
+    jsonPrimReader_read_called = False
+    global jsonPrimReader_postread_called
+    jsonPrimReader_postread_called = False
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonReader/plugInfo.json b/src/Tests/Integration/pythonReader/plugInfo.json
new file mode 100644
index 0000000..b997ff4
--- /dev/null
+++ b/src/Tests/Integration/pythonReader/plugInfo.json
@@ -0,0 +1,20 @@
+{
+   "Plugins": [
+      {
+         "Info": {
+            "MaxUsd": {
+               "PrimReader": {
+                  "providesTranslator": [
+                     # normally we would use "UsdGeomCone" since the reader only
+                     # handles that specific type and does cover all types from the ancestor
+                     # the ancestor type is used here for testing purpose ONLY
+                     "UsdGeomGprim"
+                  ]
+               }
+            }
+         },
+         "Name": "primReaderFromJson",
+         "Type": "python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonReader/primReaderFromJson.py b/src/Tests/Integration/pythonReader/primReaderFromJson.py
new file mode 100644
index 0000000..14693dc
--- /dev/null
+++ b/src/Tests/Integration/pythonReader/primReaderFromJson.py
@@ -0,0 +1,43 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+from pymxs import runtime as rt
+from pxr import UsdShade, UsdGeom
+import traceback
+import jsonReaderGlobals
+class ReaderFromJson(maxUsd.PrimReader):
+    
+    def Read(self):
+        jsonReaderGlobals.jsonPrimReader_read_called = True
+        print(jsonPrimReader_read_called)
+        return True
+
+    # left this method undeclared at this level to leave default setting
+    # def HasPostReadSubtree(self):
+    #     return False
+    
+    # the PostRead method shall not be called by default
+    # the reader must explicitely declare it has a PostRead method to call
+    def PostReadSubtree(self):
+        jsonReaderGlobals.jsonPrimReader_postread_called = True
+
+    @classmethod
+    def CanImport(cls, importArgs, prim):
+        if prim.IsA(UsdGeom.Cone):
+            return maxUsd.PrimReader.ContextSupport.Supported
+        return maxUsd.PrimReader.ContextSupport.Unsupported
+		
+maxUsd.PrimReader.Register(ReaderFromJson, "UsdGeomCone")
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonShaderWriter/jsonShaderWriterGlobals.py b/src/Tests/Integration/pythonShaderWriter/jsonShaderWriterGlobals.py
new file mode 100644
index 0000000..58ceda0
--- /dev/null
+++ b/src/Tests/Integration/pythonShaderWriter/jsonShaderWriterGlobals.py
@@ -0,0 +1,23 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Simple script to expose a globals variable across shaderWriterFromJson.py
+# and shader_writer_test.py. 
+def initialize(): 
+    # Variable used to make sure that the Write() method of the prim writer
+    # implemented in shaderWriterFromJson is eventually called into.
+    global jsonShaderWriter_write_called
+    jsonShaderWriter_write_called = False
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonShaderWriter/plugInfo.json b/src/Tests/Integration/pythonShaderWriter/plugInfo.json
new file mode 100644
index 0000000..a06e211
--- /dev/null
+++ b/src/Tests/Integration/pythonShaderWriter/plugInfo.json
@@ -0,0 +1,17 @@
+{
+   "Plugins": [
+      {
+         "Info": {
+            "MaxUsd": {
+               "ShaderWriter": {
+                  "providesTranslator": [
+                     "Matte/Shadow"
+                  ]
+               }
+            }
+         },
+         "Name": "shaderWriterFromJson",
+         "Type": "python"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/Tests/Integration/pythonShaderWriter/shaderWriterFromJson.py b/src/Tests/Integration/pythonShaderWriter/shaderWriterFromJson.py
new file mode 100644
index 0000000..50f6624
--- /dev/null
+++ b/src/Tests/Integration/pythonShaderWriter/shaderWriterFromJson.py
@@ -0,0 +1,30 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maxUsd
+from pymxs import runtime as rt
+import traceback
+import jsonShaderWriterGlobals
+        
+class ShaderWriterFromJson(maxUsd.ShaderWriter):
+    def Write(self):
+        jsonShaderWriterGlobals.jsonShaderWriter_write_called = True
+        return True
+        
+    @classmethod
+    def CanExport(cls, exportArgs):
+        return maxUsd.ShaderWriter.ContextSupport.Supported    
+       
+maxUsd.ShaderWriter.Register(ShaderWriterFromJson, "Matte/Shadow")
\ No newline at end of file
diff --git a/src/Tests/Integration/python_bindings_test.ms b/src/Tests/Integration/python_bindings_test.ms
new file mode 100644
index 0000000..c9ef442
--- /dev/null
+++ b/src/Tests/Integration/python_bindings_test.ms
@@ -0,0 +1,47 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_bindings_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+
+    ),
+    
+    function test_import_all_python_bindings = 
+    (
+        -- Import all usd python modules.
+        python.Execute "from pxr import *"
+    ), 
+    function teardown = (
+    ),
+    
+    Tests = #(
+        test_import_all_python_bindings
+    )
+)
+
+runUsdTestFixture python_bindings_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_export_options_test.ms b/src/Tests/Integration/python_export_options_test.ms
new file mode 100644
index 0000000..c610a78
--- /dev/null
+++ b/src/Tests/Integration/python_export_options_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_export_options_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function python_export_options_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import python_export_options_test"
+        python.Execute "reload(python_export_options_test)"
+        -- Run tests.		
+        test = python.import("python_export_options_test")
+        results = test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        python_export_options_test
+    )
+)
+
+runUsdTestFixture python_export_options_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_export_options_test.py b/src/Tests/Integration/python_export_options_test.py
new file mode 100644
index 0000000..f348b6a
--- /dev/null
+++ b/src/Tests/Integration/python_export_options_test.py
@@ -0,0 +1,266 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys, os
+
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom, Sdf, Plug
+
+# Test class.
+class TestUSDSceneBuilderOptions(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        
+    def tearDown(self):
+        pass
+
+    def test_options(self):
+                
+        options = maxUsd.USDSceneBuilderOptions()
+        
+        # Test all getters and setters.
+        self.assertEqual(maxUsd.ContentSource.RootNode, options.GetContentSource())
+        options.SetContentSource(maxUsd.ContentSource.Selection)
+        self.assertEqual(maxUsd.ContentSource.Selection, options.GetContentSource())
+        options.SetContentSource(maxUsd.ContentSource.NodeList)
+        self.assertEqual(maxUsd.ContentSource.NodeList, options.GetContentSource())
+        
+        self.assertEqual("useRegistry", options.GetShadingMode())
+        options.SetShadingMode("foo")
+        self.assertEqual("foo", options.GetShadingMode())
+        
+        self.assertTrue(options.GetTranslateMeshes())
+        options.SetTranslateMeshes(False)
+        self.assertFalse(options.GetTranslateMeshes())
+        
+        self.assertTrue(options.GetTranslateShapes())
+        options.SetTranslateShapes(False)
+        self.assertFalse(options.GetTranslateShapes())
+        
+        self.assertTrue(options.GetTranslateLights())
+        options.SetTranslateLights(False)
+        self.assertFalse(options.GetTranslateLights())
+        
+        self.assertTrue(options.GetTranslateCameras())
+        options.SetTranslateCameras(False)
+        self.assertFalse(options.GetTranslateCameras())
+        
+        self.assertTrue(options.GetTranslateMaterials())
+        options.SetTranslateMaterials(False)
+        self.assertFalse(options.GetTranslateMaterials())
+
+        self.assertFalse(options.GetTranslateSkin())
+        options.SetTranslateSkin(True)
+        self.assertTrue(options.GetTranslateSkin())
+
+        self.assertFalse(options.GetTranslateMorpher())
+        options.SetTranslateMorpher(True)
+        self.assertTrue(options.GetTranslateMorpher())
+        
+        self.assertEqual("{'UsdPreviewSurface'}", str(options.GetAllMaterialConversions()))
+        allMaterialConversions = {'foo', 'bar'}
+        options.SetAllMaterialConversions(allMaterialConversions)
+        self.assertEqual(allMaterialConversions, options.GetAllMaterialConversions())
+
+        self.assertTrue(options.GetUsdStagesAsReferences())
+        options.SetUsdStagesAsReferences(False)
+        self.assertFalse(options.GetUsdStagesAsReferences())
+        
+        self.assertTrue(options.GetTranslateHidden())
+        options.SetTranslateHidden(False)
+        self.assertFalse(options.GetTranslateHidden())
+        
+        self.assertFalse(options.GetUseUSDVisibility())
+        options.SetUseUSDVisibility(True)
+        self.assertTrue(options.GetUseUSDVisibility())
+        
+        self.assertFalse(options.GetAllowNestedGprims())
+        options.SetAllowNestedGprims(True)
+        self.assertTrue(options.GetAllowNestedGprims())
+
+        self.assertEqual(maxUsd.FileFormat.Binary, options.GetFileFormat())
+        options.SetFileFormat(maxUsd.FileFormat.ASCII)
+        self.assertEqual(maxUsd.FileFormat.ASCII, options.GetFileFormat())
+        
+        self.assertEqual(maxUsd.NormalsMode.AsPrimvar, options.GetNormalsMode())
+        options.SetNormalsMode(maxUsd.NormalsMode.AsAttribute)
+        self.assertEqual(maxUsd.NormalsMode.AsAttribute, options.GetNormalsMode())        
+        
+        self.assertEqual(maxUsd.MeshFormat.FromScene, options.GetMeshFormat())
+        options.SetMeshFormat(maxUsd.MeshFormat.PolyMesh)
+        self.assertEqual(maxUsd.MeshFormat.PolyMesh, options.GetMeshFormat())
+
+        self.assertTrue(options.GetBakeObjectOffsetTransform())
+        options.SetBakeObjectOffsetTransform(False)
+        self.assertFalse(options.GetBakeObjectOffsetTransform())
+
+        self.assertFalse(options.GetPreserveEdgeOrientation())
+        options.SetPreserveEdgeOrientation(True)
+        self.assertTrue(options.GetPreserveEdgeOrientation())
+                        
+        self.assertEqual(options.GetChannelPrimvarType(1), maxUsd.PrimvarType.TexCoord2fArray)
+        options.SetChannelPrimvarType(1, maxUsd.PrimvarType.Color3fArray)
+        self.assertEqual(options.GetChannelPrimvarType(1), maxUsd.PrimvarType.Color3fArray)
+
+        self.assertEqual(options.GetChannelPrimvarName(1), "st")
+        options.SetChannelPrimvarName(1, "foo")
+        self.assertEqual(options.GetChannelPrimvarName(1), "foo")
+
+        self.assertEqual(options.GetChannelPrimvarAutoExpandType(1), False)
+        options.SetChannelPrimvarAutoExpandType(1, True)
+        self.assertEqual(options.GetChannelPrimvarAutoExpandType(1), True)
+
+        self.assertEqual(maxUsd.TimeMode.CurrentFrame, options.GetTimeMode())
+        options.SetTimeMode(maxUsd.TimeMode.AnimationRange)
+        self.assertEqual(maxUsd.TimeMode.AnimationRange, options.GetTimeMode())
+
+        self.assertEqual(0, options.GetStartFrame())
+        options.SetStartFrame(10)
+        self.assertEqual(10, options.GetStartFrame())
+
+        self.assertEqual(0, options.GetEndFrame())
+        options.SetEndFrame(10)
+        self.assertEqual(10, options.GetEndFrame())
+        
+        self.assertEqual(1, options.GetSamplesPerFrame())
+        options.SetSamplesPerFrame(5)
+        self.assertEqual(5, options.GetSamplesPerFrame())
+
+        self.assertEqual(maxUsd.UpAxis.Z, options.GetUpAxis())
+        options.SetUpAxis(maxUsd.UpAxis.Y)
+        self.assertEqual(maxUsd.UpAxis.Y, options.GetUpAxis())
+
+        self.assertEqual("/root", str(options.GetRootPrimPath()))
+        rootPrim = "/foo/bar"
+        options.SetRootPrimPath(rootPrim)
+        self.assertEqual(rootPrim, str(options.GetRootPrimPath()))
+        
+        self.assertTrue("MaxUsdExport.log" in options.GetLogPath())
+        logPath = "C:\\foo\\bar.log"
+        options.SetLogPath(logPath)
+        self.assertEqual(logPath, options.GetLogPath())        
+        
+        self.assertEqual(maxUsd.LogLevel.Off, options.GetLogLevel())
+        options.SetLogLevel(maxUsd.LogLevel.Error)
+        self.assertEqual(maxUsd.LogLevel.Error, options.GetLogLevel())
+        
+        self.assertFalse(options.GetOpenInUsdview())        
+        options.SetOpenInUsdview(True)
+        self.assertTrue(options.GetOpenInUsdview())
+        
+        self.assertEqual("set()", str(options.GetChaserNames()))
+        chasers = {"chaser1", "chaser2"}
+        options.SetChaserNames(chasers)
+        self.assertEqual(chasers, options.GetChaserNames())
+        
+        self.assertEqual("set()", str(options.GetContextNames()))
+        contexts = {"context1", "context2"}
+        options.SetContextNames(contexts)
+        self.assertEqual(contexts, options.GetContextNames())
+        
+        # We have 2 overloads for SetAllChaserArgs, one taking in a dict, the other a list.
+        self.assertEqual("{}", str(options.GetAllChaserArgs()))
+        # Using dictionnary: 
+        allChaserArgsDict = {"chaser1":{"param1":"a", "param2":"b"}}
+        options.SetAllChaserArgs(allChaserArgsDict)
+        self.assertEqual(allChaserArgsDict, options.GetAllChaserArgs())
+        # Using list:
+        allChaserArgsList = ["chaser1", "param1", "1", "chaser1", "param2", "1"]
+        options.SetAllChaserArgs(allChaserArgsList)
+        self.assertEqual({'chaser1': {'param1': '1', 'param2': '1'}}, options.GetAllChaserArgs())
+        
+        self.assertTrue(options.GetUseProgressBar())
+        options.SetUseProgressBar(False)
+        self.assertFalse(options.GetUseProgressBar())
+
+        self.assertEqual("<filename>_mtl.usda", options.GetMaterialLayerPath())
+        options.SetMaterialLayerPath("MyMaterials.usda")
+        self.assertEqual("MyMaterials.usda", options.GetMaterialLayerPath())
+
+        self.assertFalse(options.GetUseSeparateMaterialLayer())
+        options.SetUseSeparateMaterialLayer(True)
+        self.assertTrue(options.GetUseSeparateMaterialLayer())
+
+        self.assertEqual("mtl", options.GetMaterialPrimPath())
+        options.SetMaterialPrimPath("MyMaterials")
+        self.assertEqual("MyMaterials", options.GetMaterialPrimPath())
+        
+        self.assertTrue(options.GetUseLastResortUSDPreviewSurfaceWriter())
+        options.SetUseLastResortUSDPreviewSurfaceWriter(False)
+        self.assertFalse(options.GetUseLastResortUSDPreviewSurfaceWriter())
+        
+        # Test setting defaults.
+        options.SetDefaults()
+        
+        self.assertEqual(maxUsd.ContentSource.RootNode, options.GetContentSource())
+        self.assertEqual("useRegistry", options.GetShadingMode())
+        self.assertTrue(options.GetTranslateMeshes())
+        self.assertTrue(options.GetTranslateShapes())
+        self.assertTrue(options.GetTranslateLights())
+        self.assertTrue(options.GetTranslateCameras())
+        self.assertTrue(options.GetTranslateMaterials())
+        self.assertFalse(options.GetTranslateSkin())
+        self.assertFalse(options.GetTranslateMorpher())
+        self.assertEqual("{'UsdPreviewSurface'}", str(options.GetAllMaterialConversions()))
+        self.assertTrue(options.GetUsdStagesAsReferences())
+        self.assertTrue(options.GetTranslateHidden())
+        self.assertFalse(options.GetUseUSDVisibility())
+        self.assertFalse(options.GetAllowNestedGprims())
+        self.assertEqual(maxUsd.FileFormat.Binary, options.GetFileFormat())
+        self.assertEqual(maxUsd.NormalsMode.AsPrimvar, options.GetNormalsMode())
+        self.assertEqual(maxUsd.MeshFormat.FromScene, options.GetMeshFormat())
+        self.assertTrue(options.GetBakeObjectOffsetTransform())
+        self.assertFalse(options.GetPreserveEdgeOrientation())
+        self.assertEqual(options.GetChannelPrimvarType(1), maxUsd.PrimvarType.TexCoord2fArray)
+        self.assertEqual(options.GetChannelPrimvarName(1), "st")
+        self.assertEqual(options.GetChannelPrimvarAutoExpandType(1), False)
+        self.assertEqual(maxUsd.TimeMode.CurrentFrame, options.GetTimeMode())
+        self.assertEqual(0, options.GetStartFrame())
+        self.assertEqual(0, options.GetEndFrame())
+        self.assertEqual(1, options.GetSamplesPerFrame())
+        self.assertEqual(maxUsd.UpAxis.Z, options.GetUpAxis())
+        self.assertEqual("/root", str(options.GetRootPrimPath()))
+        self.assertTrue("MaxUsdExport.log" in options.GetLogPath())
+        self.assertEqual(maxUsd.LogLevel.Off, options.GetLogLevel())
+        self.assertFalse(options.GetOpenInUsdview())        
+        self.assertEqual("set()", str(options.GetChaserNames()))
+        self.assertEqual("set()", str(options.GetContextNames()))        
+        self.assertEqual("{}", str(options.GetAllChaserArgs()))
+        self.assertTrue(options.GetUseProgressBar())
+        self.assertEqual("<filename>_mtl.usda", options.GetMaterialLayerPath())
+        self.assertFalse(options.GetUseSeparateMaterialLayer())
+        self.assertEqual("mtl", options.GetMaterialPrimPath())
+        self.assertTrue(options.GetUseLastResortUSDPreviewSurfaceWriter())
+        
+        # Test copy construction
+        options.SetRootPrimPath("/foo")
+        optionsCopy = maxUsd.USDSceneBuilderOptions(options)
+        self.assertEqual("/foo", str(optionsCopy.GetRootPrimPath()))
+        optionsCopy.SetRootPrimPath("/bar")
+        self.assertEqual("/foo", str(options.GetRootPrimPath()))
+        self.assertEqual("/bar", str(optionsCopy.GetRootPrimPath()))
+        
+        
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestUSDSceneBuilderOptions))
+
+if __name__ == '__main__':
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/python_import_options_test.ms b/src/Tests/Integration/python_import_options_test.ms
new file mode 100644
index 0000000..15b71d9
--- /dev/null
+++ b/src/Tests/Integration/python_import_options_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_export_options_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function python_export_options_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import python_import_options_test"
+        python.Execute "reload(python_import_options_test)"
+        -- Run tests.		
+        test = python.import("python_import_options_test")
+        results = test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        python_export_options_test
+    )
+)
+
+runUsdTestFixture python_export_options_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_import_options_test.py b/src/Tests/Integration/python_import_options_test.py
new file mode 100644
index 0000000..708e7b0
--- /dev/null
+++ b/src/Tests/Integration/python_import_options_test.py
@@ -0,0 +1,151 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys, os
+
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom, Sdf, Plug
+
+# Test class.
+class TestMaxSceneBuilderOptions(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        
+    def tearDown(self):
+        pass
+
+    def test_options(self):
+
+        options = maxUsd.MaxSceneBuilderOptions()
+
+        # Test all getters and setters. 
+        self.assertEqual(1, len(options.GetStageMaskPaths()))
+        self.assertEqual('/', options.GetStageMaskPaths()[0])
+        options.SetStageMaskPaths(['/root'])
+        self.assertEqual("/root", options.GetStageMaskPaths()[0])
+        
+        self.assertEqual(0.0, options.GetStartTimeCode())
+        self.assertEqual(0.0, options.GetEndTimeCode())
+        options.SetStartTimeCode(5.0)
+        self.assertEqual(5.0, options.GetStartTimeCode())
+
+        options.SetEndTimeCode(7.0)
+        self.assertEqual(7.0, options.GetEndTimeCode())
+        
+        self.assertEqual(Usd.Stage.LoadAll, options.GetStageInitialLoadSet())
+        options.SetStageInitialLoadSet(Usd.Stage.LoadNone)
+        self.assertEqual(Usd.Stage.LoadNone, options.GetStageInitialLoadSet())
+        
+        self.assertEqual(rt.GetDir(rt.Name("temp")) + "\\MaxUsdImport.log", options.GetLogPath())
+        logPath = "C:\\foo\\bar.log"
+        options.SetLogPath(logPath)
+        self.assertEqual(logPath, options.GetLogPath())        
+        
+        self.assertEqual(maxUsd.LogLevel.Off, options.GetLogLevel())
+        options.SetLogLevel(maxUsd.LogLevel.Error)
+        self.assertEqual(maxUsd.LogLevel.Error, options.GetLogLevel())
+
+        self.assertTrue(options.GetTranslateMaterials())
+        self.assertEqual(1, len(options.GetShadingModes()))
+        self.assertEqual('useRegistry', options.GetShadingModes()[0]['mode'])
+        self.assertEqual('UsdPreviewSurface', options.GetShadingModes()[0]['materialConversion'])
+
+        self.assertEqual('none', options.GetPreferredMaterial())
+        options.SetPreferredMaterial('physicalMaterial')
+        self.assertEqual('physicalMaterial', options.GetPreferredMaterial())
+        
+        self.assertEqual({0, 1, 2}, options.GetMetaData())
+        options.SetMetaData({1,2,3})
+        self.assertEqual({1, 2, 3}, options.GetMetaData())
+        
+        self.assertTrue(options.GetImportUnmappedPrimvars())
+        options.SetImportUnmappedPrimvars(False)
+        self.assertFalse(options.GetImportUnmappedPrimvars())
+        
+        self.assertTrue(options.IsMappedPrimvar('st1'))
+        self.assertEqual(2, options.GetPrimvarChannel('st1'))
+        options.SetPrimvarChannel('st1', 3)
+        self.assertEqual(3, options.GetPrimvarChannel('st1'))
+
+        self.assertEqual("set()", str(options.GetChaserNames()))
+        chasers = {"chaser1", "chaser2"}
+        options.SetChaserNames(chasers)
+        self.assertEqual(chasers, options.GetChaserNames())
+
+        self.assertTrue(options.GetUseProgressBar())
+        options.SetUseProgressBar(False)
+        self.assertFalse(options.GetUseProgressBar())
+
+        # We have 2 overloads for SetAllChaserArgs, one taking in a dict, the other a list.
+        self.assertEqual("{}", str(options.GetAllChaserArgs()))
+        # Using dictionnary: 
+        allChaserArgsDict = {"chaser1":{"param1":"a", "param2":"b"}}
+        options.SetAllChaserArgs(allChaserArgsDict)
+        self.assertEqual(allChaserArgsDict, options.GetAllChaserArgs())
+        # Using list:
+        allChaserArgsList = ["chaser1", "param1", "1", "chaser1", "param2", "1"]
+        options.SetAllChaserArgs(allChaserArgsList)
+        self.assertEqual({'chaser1': {'param1': '1', 'param2': '1'}}, options.GetAllChaserArgs())
+
+        self.assertEqual("set()", str(options.GetContextNames()))
+        contexts = {"context1", "context2"}
+        options.SetContextNames(contexts)
+        self.assertEqual(contexts, options.GetContextNames())
+
+        # Test setting defaults.
+        options.SetDefaults()
+        
+        self.assertEqual(1, len(options.GetStageMaskPaths()))
+        self.assertEqual('/', options.GetStageMaskPaths()[0])
+        self.assertEqual(0.0, options.GetStartTimeCode())
+        self.assertEqual(0.0, options.GetEndTimeCode())
+        self.assertEqual(Usd.Stage.LoadAll, options.GetStageInitialLoadSet())
+        self.assertEqual(rt.GetDir(rt.Name("temp")) + "\\MaxUsdImport.log", options.GetLogPath())
+        self.assertEqual(maxUsd.LogLevel.Off, options.GetLogLevel())
+        self.assertTrue(options.GetTranslateMaterials())
+        self.assertEqual(1, len(options.GetShadingModes()))
+        self.assertEqual('useRegistry', options.GetShadingModes()[0]['mode'])
+        self.assertEqual('UsdPreviewSurface', options.GetShadingModes()[0]['materialConversion'])
+        self.assertEqual('none', options.GetPreferredMaterial())
+        self.assertEqual({0, 1, 2}, options.GetMetaData())
+        self.assertTrue(options.IsMappedPrimvar('st1'))
+        self.assertTrue(options.GetImportUnmappedPrimvars())
+        self.assertEqual(2, options.GetPrimvarChannel('st1'))
+        self.assertEqual("set()", str(options.GetChaserNames()))
+        self.assertEqual("set()", str(options.GetContextNames()))        
+        self.assertEqual("{}", str(options.GetAllChaserArgs()))
+        self.assertTrue(options.GetUseProgressBar())
+        
+        # Test copy construction
+        options.SetStageMaskPaths(["/foo"])
+        optionsCopy = maxUsd.MaxSceneBuilderOptions(options)
+        self.assertEqual("/foo", optionsCopy.GetStageMaskPaths()[0])
+        optionsCopy.SetStageMaskPaths(["/bar", "/maid"])
+        self.assertEqual("/foo", options.GetStageMaskPaths()[0])
+        self.assertEqual("/bar", optionsCopy.GetStageMaskPaths()[0])
+        self.assertEqual("/maid", optionsCopy.GetStageMaskPaths()[1])
+        
+        
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestMaxSceneBuilderOptions))
+
+if __name__ == '__main__':
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/python_material_converter_test.ms b/src/Tests/Integration/python_material_converter_test.ms
new file mode 100644
index 0000000..feff5b9
--- /dev/null
+++ b/src/Tests/Integration/python_material_converter_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_material_converter_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function mesh_converter_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import python_material_converter_test"
+        python.Execute "reload(python_material_converter_test)"
+        -- Run tests.		
+        test = python.import("python_material_converter_test")
+        results = test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        mesh_converter_test
+    )
+)
+
+runUsdTestFixture python_material_converter_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_material_converter_test.py b/src/Tests/Integration/python_material_converter_test.py
new file mode 100644
index 0000000..0ca12ae
--- /dev/null
+++ b/src/Tests/Integration/python_material_converter_test.py
@@ -0,0 +1,93 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+
+import maxUsd
+import pymxs
+import os
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom, UsdShade, Sdf
+
+TEST_DIR = os.path.dirname(__file__)
+TEST_DATA_DIR = os.path.join(TEST_DIR, "data")
+UV_CHECKER_NAME = "uv_checker.png"
+UV_CHECKER_PATH = os.path.join(TEST_DATA_DIR, UV_CHECKER_NAME)
+
+class TestPythonMaterialConverter(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+
+    def tearDown(self):
+        pass
+
+    def test_mtl_to_usd(self):
+        
+        testMaterial = rt.MaxUsdPreviewSurface()
+        testMaterial.Name = "usdps"
+        checker = rt.BitmapTexture()
+        checker.filename = UV_CHECKER_PATH
+        
+        testMaterial.diffuseColor_map = checker
+                
+        stage = Usd.Stage.CreateInMemory()
+        
+        # We wont actually write the stage do disk, but give a fictitious file path for the stage's root layer.
+        # We need to know the path of the layer when translating materials, so that we can compute any required
+        # relative paths for things like textures and any other referenced asset.
+        
+        layerFilePath = os.path.join(TEST_DATA_DIR, "dummy.usda")
+        options = maxUsd.USDSceneBuilderOptions()
+        testMaterialHandle = rt.getHandleByAnim(testMaterial)
+        
+        usdMaterial = maxUsd.MaterialConverter.ConvertToUSDMaterial(testMaterialHandle, stage, layerFilePath, False, "/mtl/test_mtl_no_binding", options)
+        self.assertTrue(usdMaterial.GetPrim().IsDefined())
+        
+        texturePrim = stage.GetPrimAtPath("/mtl/test_mtl_no_binding/Bitmaptexture/Bitmaptexture")
+        self.assertTrue(texturePrim.IsValid())
+        inputFile = str(UsdShade.Shader(texturePrim).GetInput("file").Get())
+        self.assertEqual("@./" + UV_CHECKER_NAME + "@", inputFile)
+        
+        spherePath = "/sphere"
+        cubePath = "/cube"
+        
+        spherePrim = UsdGeom.Sphere.Define(stage, spherePath)
+        cubePrim = UsdGeom.Cube.Define(stage, cubePath)
+
+        bindings = [spherePath, cubePath]
+        boundMtlPath = "/mtl/test_mtl_with_binding"
+        usdBoundMaterial = maxUsd.MaterialConverter.ConvertToUSDMaterial(testMaterialHandle, stage, layerFilePath, False, boundMtlPath, options, bindings)
+        self.assertTrue(usdBoundMaterial.GetPrim().IsDefined())
+
+        # Validate the bindings we requested.
+        for path in bindings:
+            prim = stage.GetPrimAtPath(path)
+            api = UsdShade.MaterialBindingAPI(prim)
+            mtl = api.GetDirectBindingRel().GetTargets()[0]
+            self.assertEqual(str(mtl), boundMtlPath)
+
+        # Left around, for debugging.
+        # stage.GetRootLayer().Export(layerFilePath)
+        # maxUsd.OpenInUsdView(layerFilePath)
+        
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestPythonMaterialConverter))
+
+if __name__ == '__main__':
+    run_tests()
diff --git a/src/Tests/Integration/python_mesh_converter_test.ms b/src/Tests/Integration/python_mesh_converter_test.ms
new file mode 100644
index 0000000..35f6c56
--- /dev/null
+++ b/src/Tests/Integration/python_mesh_converter_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_mesh_converter_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function mesh_converter_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import python_mesh_converter_test"
+        python.Execute "reload(python_mesh_converter_test)"
+        -- Run tests.		
+        test = python.import("python_mesh_converter_test")
+        results = test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        mesh_converter_test
+    )
+)
+
+runUsdTestFixture python_mesh_converter_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_mesh_converter_test.py b/src/Tests/Integration/python_mesh_converter_test.py
new file mode 100644
index 0000000..f11cc59
--- /dev/null
+++ b/src/Tests/Integration/python_mesh_converter_test.py
@@ -0,0 +1,107 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+
+import usd_test_helpers
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom
+
+class MeshConverterDummyWriter(maxUsd.PrimWriter):
+    
+    def Write(self, prim, applyOffset, time):
+        try: 
+            nodeHandle = self.GetNodeHandle()
+            opts = self.GetExportArgs()
+            stage = prim.GetStage()
+            path = "/foo/mesh"
+            
+            # Write the box somewhere with applyOffset = false
+            usdMesh = maxUsd.MeshConverter.ConvertToUSDMesh(nodeHandle, stage, path, opts, False, time)
+            
+            meshPrim = usdMesh.GetPrim()
+            rt.assert_true(meshPrim.IsValid())
+            rt.assert_true(meshPrim.IsA(UsdGeom.Mesh))
+            rt.assert_equal("/foo/mesh", str(meshPrim.GetPath()))
+            
+            rt.assert_equal(8, len(usdMesh.GetPointsAttr().Get()))
+            rt.assert_equal(6, len(usdMesh.GetFaceVertexCountsAttr().Get()))
+            rt.assert_equal(24, len(usdMesh.GetFaceVertexIndicesAttr().Get()))
+
+            # Called with apply offset = false, expect no transform on the mesh
+            xformable = UsdGeom.Xformable(meshPrim)
+            ops = xformable.GetOrderedXformOps()
+            rt.assert_equal(0, len(ops))
+
+            # Write the box somewhere else, with applyOffset = true
+            path = "/bar/mesh"
+            usdMesh = maxUsd.MeshConverter.ConvertToUSDMesh(nodeHandle, stage, path, opts, True,  time)
+            meshPrim = usdMesh.GetPrim()
+            xformable = UsdGeom.Xformable(prim)
+            ops = xformable.GetOrderedXformOps()
+            # This also tests that options are wired correctly, as without BakeObjectOffset = false, there
+            # would still be 0 xformOps.
+            rt.assert_equal(1, len(ops))
+            return True
+                       
+            
+        except Exception as e:
+            rt.assert_true(False, message="\nFailed to test MeshConverter.ConvertToUSDMesh()!")
+            print('\nWrite() - Error: %s' % str(e))
+
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        node = rt.maxOps.getNodeByHandle(nodeHandle)
+        if rt.classOf(node) == rt.Box:
+            return maxUsd.PrimWriter.ContextSupport.Supported
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+
+
+class TestPythonMeshConverter(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("PYHTON_MESH_CONVERTER_TEST_")
+
+    def tearDown(self):
+        pass
+
+    def test_inode_to_usdmesh(self):
+        maxUsd.PrimWriter.Unregister(MeshConverterDummyWriter, "MeshConverterDummyWriter")
+        maxUsd.PrimWriter.Register(MeshConverterDummyWriter, "MeshConverterDummyWriter")
+        
+        box = rt.Box()
+        
+        box.objectOffsetPos = rt.Point3(0, 0, 10)
+        
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        test_usd_file_path = self.output_prefix + "test_convert_to_usd_mesh.usda"
+        print(test_usd_file_path)
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        self.assertTrue(ret)
+        maxUsd.PrimWriter.Unregister(MeshConverterDummyWriter, "MeshConverterDummyWriter")
+        
+
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestPythonMeshConverter))
+
+if __name__ == '__main__':
+    run_tests()
diff --git a/src/Tests/Integration/python_sample_test.py b/src/Tests/Integration/python_sample_test.py
new file mode 100644
index 0000000..9582a75
--- /dev/null
+++ b/src/Tests/Integration/python_sample_test.py
@@ -0,0 +1,65 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+import os
+from pymxs import runtime as mxs
+import usd_test_helpers
+
+class ImportTestCase(unittest.TestCase):
+	def setUp(self):
+		mxs.resetMaxFile(mxs.Name("noprompt"))
+		usd_test_helpers.load_usd_plugins()		
+		self.tempDir = mxs.getDir(mxs.Name("temp"))
+
+	def tearDown(self):
+		print("end")
+
+	def test_import(self):
+		#given
+		from pxr import Kind, Sdf, Usd, UsdGeom, UsdShade
+		usdFilePath = os.path.join(self.tempDir, "dummy_import.usd")
+		stage = Usd.Stage.CreateInMemory()
+		UsdGeom.SetStageUpAxis(stage, UsdGeom.Tokens.y)
+		root = UsdGeom.Xform.Define(stage, "/TexModel")
+		Usd.ModelAPI(root).SetKind(Kind.Tokens.component)
+		usdFile = open(usdFilePath, "w")
+		usdFile.write(stage.GetRootLayer().ExportToString())
+		usdFile.close()
+
+		#when
+		status = mxs.importFile(usdFilePath, mxs.Name("noprompt"))
+
+		#then
+		assert (status == 1), "import usd failed"
+
+	def test_export(self):
+		#given
+		from pxr import Kind, Sdf, Usd, UsdGeom, UsdShade
+		usdFilePath = os.path.join(self.tempDir, "dummy_export.usda")
+		mxs.teapot()
+
+		#when
+		status = mxs.exportFile(usdFilePath, mxs.Name("noprompt"))
+
+		#then
+		stage = Usd.Stage.Open(usdFilePath)
+		meshTeapot = stage.GetPrimAtPath("/Teapot001")
+		assert isinstance(meshTeapot, Usd.Prim), "could not find expected mesh 'Teapot001'"
+
+		
+if __name__ == '__main__':
+	unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(ImportTestCase))
\ No newline at end of file
diff --git a/src/Tests/Integration/python_translation_utils_test.ms b/src/Tests/Integration/python_translation_utils_test.ms
new file mode 100644
index 0000000..5556a49
--- /dev/null
+++ b/src/Tests/Integration/python_translation_utils_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct python_translation_utils_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function translation_utils_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import python_translation_utils_test"
+        python.Execute "reload(python_translation_utils_test)"
+        -- Run tests.		
+        test = python.import("python_translation_utils_test")
+        results = test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        translation_utils_test
+    )
+)
+
+runUsdTestFixture python_translation_utils_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/python_translation_utils_test.py b/src/Tests/Integration/python_translation_utils_test.py
new file mode 100644
index 0000000..b87c1c4
--- /dev/null
+++ b/src/Tests/Integration/python_translation_utils_test.py
@@ -0,0 +1,108 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys
+
+import usd_test_helpers
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, UsdGeom
+
+class TranslationUtilsDummyWriter(maxUsd.PrimWriter):
+    def __init__(self, PrimWriter, *args, **kwargs):
+        super(TranslationUtilsDummyWriter, self).__init__(PrimWriter, *args, **kwargs)
+        self._objectFames = []
+        self._objectFrameIdx = 0
+        
+    def Write(self, prim, applyOffset, time):
+        try: 
+            opts = self.GetExportArgs()
+            
+            if (time.IsFirstFrame()):
+                nodeHandle = self.GetNodeHandle()
+                self._objectFrames = maxUsd.TranslationUtils.GetKeyFramesFromValidityInterval(nodeHandle, opts)
+                # See comments in TestPythonTranslationUtils.test_get_keyframes_from_val_interval()
+                rt.assert_equal(str([(0.0,0.0), (1.0,1.0), (2.0,2.0), (3.0,3.0), (4.0,4.0), (5.0,5.0), (6.0,6.0), (7.0,7.0), (8.0,8.0), (9.0,9.0), (10.0,10.0), (20.0,20.0), (21.0,21.0), (22.0,22.0), (23.0,23.0), (24.0,24.0), (25.0,25.0), (26.0,26.0), (27.0,27.0), (28.0,28.0), (29.0,29.0), (30.0,30.0)]), str(self._objectFrames))
+            
+            self._objectFrames[self._objectFrameIdx]
+            
+            rt.assert_equal(str(self._objectFrames[self._objectFrameIdx]), str((time.GetMaxTime(), time.GetUsdTime().GetValue())))
+            self._objectFrameIdx = self._objectFrameIdx + 1
+            return True
+        except Exception as e:
+            rt.assert_true(False, message="\nFailed to test GetKeyFramesFromValidityInterval()!")
+            print('\nWrite() - Error: %s' % str(e))
+
+    @classmethod
+    def CanExport(cls, nodeHandle, exportArgs):
+        node = rt.maxOps.getNodeByHandle(nodeHandle)
+        if rt.classOf(node) == rt.Sphere:
+            return maxUsd.PrimWriter.ContextSupport.Supported
+        return maxUsd.PrimWriter.ContextSupport.Unsupported
+
+class TestPythonTranslationUtils(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("PYHTON_TRANSLATION_UTILS_TEST_")
+
+    def tearDown(self):
+        pass
+
+    def test_get_keyframes_from_val_interval(self):
+        maxUsd.PrimWriter.Unregister(TranslationUtilsDummyWriter, "TranslationUtilsDummyWriter")
+        maxUsd.PrimWriter.Register(TranslationUtilsDummyWriter, "TranslationUtilsDummyWriter")
+        # Create an animated sphere
+
+        sphereNode = rt.Sphere()
+        with pymxs.animate(True):
+            with pymxs.attime(10):
+                sphereNode.radius = 50
+            with pymxs.attime(20):
+                sphereNode.radius = 50
+            with pymxs.attime(30):
+                sphereNode.radius = 100    
+                
+        # We've got 5 meaningful intervals : 
+        # Object doesn't change in [-infinity, 0]
+        # Object changes every frame in [0,10]
+        # Object doesn't change in [10, 20]
+        # Object changes every frame in [20, 30]
+        # Object doesn't change in [30, infinity]
+        
+        # We therefor expect these frames to be exported : 
+        # [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]
+        test_usd_file_path = self.output_prefix + "test_get_keyframes_from_val_interval.usda"
+
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.TimeMode = rt.Name("AnimationRange")
+        export_options.StartFrame = -5
+        export_options.EndFrame = 35
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        
+        self.assertTrue(ret)
+        
+        maxUsd.PrimWriter.Unregister(TranslationUtilsDummyWriter, "TranslationUtilsDummyWriter")
+
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestPythonTranslationUtils))
+
+if __name__ == '__main__':
+    run_tests()
diff --git a/src/Tests/Integration/resources/box_with_physical_material.max b/src/Tests/Integration/resources/box_with_physical_material.max
new file mode 100644
index 0000000..b1c75d3
--- /dev/null
+++ b/src/Tests/Integration/resources/box_with_physical_material.max
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:22d22cc89610add72f573ee75e7e11994c45e67c2140ce6200b036da49429504
+size 675840
diff --git a/src/Tests/Integration/shader_writer_test.ms b/src/Tests/Integration/shader_writer_test.ms
new file mode 100644
index 0000000..19cfd1f
--- /dev/null
+++ b/src/Tests/Integration/shader_writer_test.ms
@@ -0,0 +1,64 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct shader_writer_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function shader_writer_test = 
+    (
+        -- Reload the test module, useful in development. 
+        python.Execute "from importlib import reload"
+        python.Execute "import shader_writer_test"
+        python.Execute "reload(shader_writer_test)"
+        -- Run tests.
+        test = python.import("shader_writer_test")
+        results = test.run_tests()
+        
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        shader_writer_test
+    )
+)
+
+runUsdTestFixture shader_writer_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/shader_writer_test.py b/src/Tests/Integration/shader_writer_test.py
new file mode 100644
index 0000000..a2b5daa
--- /dev/null
+++ b/src/Tests/Integration/shader_writer_test.py
@@ -0,0 +1,231 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import sys, os
+
+import usd_test_helpers
+import maxUsd
+import pymxs
+from pymxs import runtime as rt
+
+from pxr import Usd, Sdf, Plug, UsdShade
+
+# A shader writer used to test that all overriden methods are called into and 
+# their results used. Each implemented methods sets a static variable used 
+# to validate that the method is indeed called into by the system. A similar approach is 
+# used to validate the received method parameters - for example
+# TestShaderWriter.SphereNodeHandle is set from the test method to the exported node's 
+# handle value.
+class BasicShaderWriter(maxUsd.ShaderWriter):
+        
+    def Write(self):
+        BasicShaderWriter.Write_Called = True
+        return True
+
+    def HasMaterialDependencies(self):
+        BasicShaderWriter.HasMaterialDependencies_Called = True
+        return True
+
+    def GetSubMtlDependencies(self):
+        BasicShaderWriter.GetSubMtlDependencies_Called = True
+        return []
+
+    def PostWrite(self):
+        BasicShaderWriter.PostWrite_Called = True
+    
+    @classmethod
+    def CanExport(cls, exportArgs):
+        BasicShaderWriter.CanExport_Called = True
+
+        try: 
+            # Test export options access.
+            options = exportArgs
+            rt.assert_equal(True, options.GetBakeObjectOffsetTransform())
+            rt.assert_equal(False, options.GetChannelPrimvarAutoExpandType(0))
+            rt.assert_equal("vertexColor", options.GetChannelPrimvarName(0))
+            rt.assert_equal(maxUsd.PrimvarType.Color3fArray, options.GetChannelPrimvarType(0))
+            rt.assert_equal("UsdPreviewSurface", options.GetConvertMaterialsTo())
+            rt.assert_equal(0, options.GetEndFrame())
+            rt.assert_equal(0, options.GetStartFrame())
+            rt.assert_equal(1, options.GetSamplesPerFrame())
+            rt.assert_equal(maxUsd.TimeMode.CurrentFrame, options.GetTimeMode())
+            rt.assert_equal(maxUsd.LogLevel.Off, options.GetLogLevel())
+            rt.assert_equal(maxUsd.MeshFormat.FromScene, options.GetMeshFormat())
+            rt.assert_equal(maxUsd.FileFormat.ASCII , options.GetFileFormat())
+            rt.assert_equal(maxUsd.NormalsMode.AsPrimvar, options.GetNormalsMode())
+            rt.assert_equal(False, options.GetOpenInUsdview())
+            rt.assert_equal(False, options.GetPreserveEdgeOrientation())
+            rt.assert_equal("/root", str(options.GetRootPrimPath()))           
+            rt.assert_equal("useRegistry", options.GetShadingMode())
+            maxver = rt.maxversion()
+            if maxver[0] >= 26000:  # 3ds Max 2024 and up
+                rt.assert_equal(maxUsd.MtlSwitcherExportStyle.AsVariantSets, options.GetMtlSwitcherExportStyle())
+            rt.assert_equal(True, options.GetTranslateCameras())
+            rt.assert_equal(True, options.GetTranslateHidden())
+            rt.assert_equal(True, options.GetTranslateLights())
+            rt.assert_equal(True, options.GetTranslateMaterials())
+            rt.assert_equal(True, options.GetTranslateMeshes())
+            rt.assert_equal(True, options.GetTranslateShapes())
+            rt.assert_equal(maxUsd.UpAxis.Z, options.GetUpAxis())
+            rt.assert_equal(True, options.GetUsdStagesAsReferences())
+            rt.assert_equal(False, options.GetUseUSDVisibility())
+            rt.assert_equal(str({'UsdPreviewSurface'}), str(options.GetAllMaterialConversions()))
+        except Exception as e:
+            # Quite useful to debug errors in a Python callback
+            print('Write() - Error: %s' % str(e))
+            print(traceback.format_exc())
+            rt.assert_true(False, message="Python exposure of Export options not working as expected")
+        return maxUsd.ShaderWriter.ContextSupport.Supported        
+
+# A shader writer used to test the registration of the Writer and the IsMaterialTargetAgnostic method in python.
+class AgnosticShaderWriter(maxUsd.ShaderWriter):
+    # Not really what we should do with a Shell material, but just for the purpose of testing :)
+    def Write(self):
+        # create the Shader prim
+        nodeShader = UsdShade.Shader.Define(self.GetUsdStage(), self.GetUsdPath())
+        nodeShader.CreateIdAttr("UsdPreviewSurface")
+        # assign the created Shader prim as the USD prim for the ShaderWriter
+        self.SetUsdPrim(nodeShader.GetPrim())
+        col = (1.0, 0.0, 0.0)
+        inp = nodeShader.CreateInput("diffuseColor",Sdf.ValueTypeNames.Color3f)
+        inp.Set(col)
+    
+    def HasMaterialDependencies(self):
+        return False
+        
+    def PostWrite(self):
+        # verify the map of exported materials is functional
+        rt.assert_equal(str("/root/mtl/Shell"), str(self.GetMaterialsToPrimsMap()[self.GetMaterial()]))
+    
+    @classmethod
+    def CanExport(cls, exportArgs):
+        return maxUsd.ShaderWriter.ContextSupport.Supported
+    
+    @classmethod
+    def IsMaterialTargetAgnostic(cls):
+        return True
+
+# Test class.
+class TestShaderWriter(unittest.TestCase):
+
+    def setUp(self):
+        rt.resetMaxFile(rt.Name("noprompt"))
+        self.output_prefix = usd_test_helpers.standard_output_prefix("EXPORT_SHADER_WRITER_TEST_")
+
+    def tearDown(self):
+        pass
+
+    def test_shader_writer(self):
+        maxUsd.ShaderWriter.Register(BasicShaderWriter, "Shell Material")
+        # Create a Box to export.
+        boxNode = rt.Box()
+        boxNode.mat = rt.Shell_Material()
+        
+        test_usd_file_path = self.output_prefix + "test_shader_writer.usda"
+        
+        
+        BasicShaderWriter.CanExport_Called = False
+        BasicShaderWriter.Write_Called = False
+        BasicShaderWriter.HasMaterialDependencies_Called = False
+        BasicShaderWriter.GetSubMtlDependencies_Called = False
+        BasicShaderWriter.PostWrite_Called = False
+        
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = "/root"
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        
+        self.assertTrue(ret)
+        
+        self.assertTrue(BasicShaderWriter.CanExport_Called)
+        self.assertTrue(BasicShaderWriter.Write_Called)
+        self.assertTrue(BasicShaderWriter.HasMaterialDependencies_Called)
+        self.assertTrue(BasicShaderWriter.GetSubMtlDependencies_Called)
+        self.assertTrue(BasicShaderWriter.PostWrite_Called)
+        
+        maxUsd.ShaderWriter.Unregister(BasicShaderWriter, "Shell Material")
+    
+    def test_shader_writer_from_json(self):
+        pluginRegistry = Plug.Registry()
+        
+        scriptDir = os.path.dirname(os.path.realpath(__file__))
+        plugsFound = pluginRegistry.RegisterPlugins(scriptDir + "/pythonShaderWriter/plugInfo.json")
+        sys.path.insert(0, scriptDir + "/pythonShaderWriter/")
+
+        plugin = pluginRegistry.GetPluginWithName('shaderWriterFromJson')
+        self.assertNotEqual(None, plugin)
+        # Limitation of the USD plugin system - no way to unload a plugin. 
+        # This test assumes an "unloaded" state, so it will only run once per max session.
+        if not plugin.isLoaded:
+            plugin.Load()
+            # Create a Box to export.
+            boxNode = rt.Box()
+            boxNode.mat = rt.matteShadow()
+            test_usd_file_path = self.output_prefix + "test_json_shader_writer.usda"
+            export_options = rt.UsdExporter.CreateOptions()
+            export_options.FileFormat = rt.Name("ascii")
+            export_options.RootPrimPath = ""
+            
+            # Shared global used to make sure our writer was called.
+            import jsonShaderWriterGlobals 
+            jsonShaderWriterGlobals.initialize()
+                        
+            ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+            self.assertTrue(ret)
+            self.assertTrue(jsonShaderWriterGlobals.jsonShaderWriter_write_called)
+        else:
+            print("\nWarning test_shader_writer_from_json() skipped, plugin is already loaded.")
+        sys.path.remove(scriptDir + "/pythonShaderWriter/")
+    
+    def test_enum_python_exposure(self):
+        self.assertTrue(hasattr(maxUsd.ShaderWriter.ContextSupport, 'Unsupported'))
+        self.assertTrue(hasattr(maxUsd.ShaderWriter.ContextSupport, 'Supported'))
+        self.assertTrue(hasattr(maxUsd.ShaderWriter.ContextSupport, 'Fallback'))
+
+    # Test that when exporting a material that has been register as Target Agnostic, it does indeed not export multiple
+    # targets and just the Material + its shader.
+    def test_agnostic_material(self):
+        maxUsd.ShaderWriter.Register(AgnosticShaderWriter, "Shell Material")
+        # Create a Box to export.
+        boxNode = rt.Box()
+        mat = rt.Shell_Material()
+        mat.name = "Shell"
+        boxNode.mat = mat
+
+        test_usd_file_path = self.output_prefix + "test_agnostic_shader_writer.usda"
+        export_options = rt.UsdExporter.CreateOptions()
+        export_options.FileFormat = rt.Name("ascii")
+        export_options.RootPrimPath = "/root"
+        materialTargets = rt.Array("UsdPreviewSurface", "MaterialX")
+        export_options.AllMaterialTargets = materialTargets
+        ret = rt.USDExporter.ExportFile(test_usd_file_path, exportOptions=export_options)
+        self.assertTrue(ret)
+
+        stage = Usd.Stage.Open(test_usd_file_path)
+        self.assertIsInstance(stage, Usd.Stage)
+        shade = UsdShade.Shader.Get(stage, "/root/mtl/Shell/Shell")
+        colorInput = shade.GetInput("diffuseColor")
+        color = colorInput.Get()
+        self.assertEqual(color, (1, 0, 0))
+
+        maxUsd.ShaderWriter.Unregister(AgnosticShaderWriter, "Shell Material")
+        
+rt.clearListener()
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestShaderWriter))
+
+if __name__ == '__main__':
+    run_tests()
\ No newline at end of file
diff --git a/src/Tests/Integration/stage_custom_animation_playback_test.ms b/src/Tests/Integration/stage_custom_animation_playback_test.ms
new file mode 100644
index 0000000..f7a61a7
--- /dev/null
+++ b/src/Tests/Integration/stage_custom_animation_playback_test.ms
@@ -0,0 +1,320 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+struct stage_custom_animation_playback_test
+(  
+    private 
+    output_prefix = pathConfig.appendPath (getDir #temp) "/STAGE_CUSTOM_ANIMATION_PLAYBACK_",
+    
+    public
+    function setup =
+    (
+        deleteTestFiles(output_prefix + "*.*")
+        resetMaxFile #noprompt
+    ),
+
+    function test_source_params = (
+        local stageObject = USDStageObject name:"stageAnimPlaybackTestObj"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile
+
+        -- Set animation mode to original range value which is 0
+        stageObject.AnimationMode = 0
+        local sourceTPS = stageObject.SourceAnimationTPS
+        local sourceStartTimeCode = stageObject.SourceAnimationStartTimeCode
+        local sourceEndTimeCode = stageObject.SourceAnimationEndTimeCode
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local pxrStage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stageObject.cacheId))
+        local pxrStageSourceTPS = pxrStage.GetTimeCodesPerSecond()
+        local pxrStageSourceStartTimeCode = pxrStage.GetStartTimeCode()
+        local pxrStageSourceEndTimeCode = pxrStage.GetEndTimeCode()
+
+        assert_float_equal pxrStageSourceTPS sourceTPS message:"The pxrStage.GetTimeCodesPerSecond() value should be equal to (our) SourceAnimationTPS."
+        assert_float_equal pxrStageSourceStartTimeCode sourceStartTimeCode message:"The pxrStage.GetStartTimeCode() value should be equal to (our) SourceAnimationStartTimeCode."
+        assert_float_equal pxrStageSourceEndTimeCode sourceEndTimeCode message:"The pxrStage.GetEndTimeCode() value should be equal to (our) SourceAnimationEndTimeCode."
+
+    ),
+
+    function test_original_range = (
+        local stageObject = USDStageObject name:"stageAnimPlaybackTestObj"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile
+
+        -- Set animation mode to original range value which is 0
+        stageObject.AnimationMode = 0
+        local sourceTPS = stageObject.SourceAnimationTPS
+        local sourceStartTimeCode = stageObject.SourceAnimationStartTimeCode
+        local sourceEndTimeCode = stageObject.SourceAnimationEndTimeCode
+
+        -- Make sure the source file we are testing holds this value assumption as the constants
+        -- tested in following tests are based on these start and end time codes
+        assert_float_equal 101.0 sourceStartTimeCode message:"The SourceAnimationStartTimeCode value should be equal to 101.0"
+        assert_float_equal 129.0 sourceEndTimeCode message:"The SourceAnimationEndTimeCode value should be equal to 129.0"
+        assert_float_equal 24.0 sourceTPS message:"The SourceAnimationTPS value should be equal to 24.0"
+
+        frameRate = 30        
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+        assert_float_equal 126.25 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 126.25 at 30 FPS"
+        assert_float_equal 161.25 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 161.25 at 30 FPS"
+
+        frameRate = 24
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+        assert_float_equal 101.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 101.0 at 24 FPS (matching)"
+        assert_float_equal 129.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 129.0 at 24 FPS (matching)"
+    ),
+
+    function test_custom_start_and_speed = (
+        local stageObject = USDStageObject name:"stageAnimPlaybackTestObj"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile
+
+        -- Set animation mode to custom start and speed value which is 1
+        stageObject.AnimationMode = 1
+        local sourceTPS = stageObject.SourceAnimationTPS
+        local sourceStartTimeCode = stageObject.SourceAnimationStartTimeCode
+        local sourceEndTimeCode = stageObject.SourceAnimationEndTimeCode
+
+        -- Make sure the source file we are testing holds this value assumption as the constants
+        -- tested in following tests are based on these start and end time codes
+        assert_float_equal 101.0 sourceStartTimeCode message:"The SourceAnimationStartTimeCode value should be equal to 101.0"
+        assert_float_equal 129.0 sourceEndTimeCode message:"The SourceAnimationEndTimeCode value should be equal to 129.0"
+        assert_float_equal 24.0 sourceTPS message:"The SourceAnimationTPS value should be equal to 24.0"
+
+        -- case 1
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationSpeed = 1.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30 at 24 FPS (matching)"
+        assert_float_equal 58.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 58.0 at 24 FPS (matching)"
+
+        -- case 2
+        frameRate = 30
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationSpeed = 1.0
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 30 FPS"
+        assert_float_equal 65.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 65.0 at 30 FPS"
+
+        -- case 3
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = -28
+        stageObject.CustomAnimationSpeed = 1.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal -28.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to -28.0 at 24 FPS (matching) for negative value -28.0 for CustomAnimationStartFrame"
+        assert_float_equal 0.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 0.0 at 24 FPS (matching) for negative value -28.0 for CustomAnimationStartFrame"
+
+        -- case 4
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationSpeed = 0.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 24 FPS (matching) at speed 0.0"
+        assert_float_equal 30.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 30.0 at 24 FPS (matching) at speed 0.0"
+
+        -- case 5
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 28
+        stageObject.CustomAnimationSpeed = -1.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 28.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 28.0 at 24 FPS (matching) at speed -1.0"
+        assert_float_equal 0.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 0.0 at 24 FPS (matching) at speed -1.0"
+
+        -- case 6
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = -28
+        stageObject.CustomAnimationSpeed = -1.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal -28.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to -28.0 at 24 FPS (matching) for negative value -28.0 for CustomAnimationStartFrame at speed -1.0"
+        assert_float_equal -56.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to -56.0 at 24 FPS (matching) for negative value -28.0 for CustomAnimationStartFrame at speed -1.0"
+
+        -- case 7
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 28
+        stageObject.CustomAnimationSpeed = 2.0
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 28.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 28.0 at 24 FPS (matching) at speed 2.0"
+        assert_float_equal 42.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 42.0 at 24 FPS (matching) at speed 2.0"
+
+        -- case 8
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 28
+        stageObject.CustomAnimationSpeed = 0.5
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 28.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 28.0 at 24 FPS (matching) at speed 0.5"
+        assert_float_equal 84.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 84.0 at 24 FPS (matching) at speed 0.5"
+    ),
+
+    function test_custom_range = (
+        local stageObject = USDStageObject name:"stageAnimPlaybackTestObj"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile
+
+        -- Set animation mode to custom range value which is 2
+        stageObject.AnimationMode = 2
+        local sourceTPS = stageObject.SourceAnimationTPS
+        local sourceStartTimeCode = stageObject.SourceAnimationStartTimeCode
+        local sourceEndTimeCode = stageObject.SourceAnimationEndTimeCode
+
+        -- Make sure the source file we are testing holds this value assumption as the constants
+        -- tested in following tests are based on these start and end time codes
+        assert_float_equal 101.0 sourceStartTimeCode message:"The stage.GetStartTimeCode() value should be equal to 101.0"
+        assert_float_equal 129.0 sourceEndTimeCode message:"The stage.GetEndTimeCode() value should be equal to 129.0"
+        assert_float_equal 24.0 sourceTPS message:"The SourceAnimationTPS value should be equal to 24.0"
+
+        -- case 1
+        frameRate = 24
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationEndFrame = 50
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 24 FPS (matching)"
+        assert_float_equal 50.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 50.0 at 24 FPS (matching)"
+
+        -- case 2
+        frameRate = 30
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationEndFrame = 50
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 30 FPS"
+        assert_float_equal 50.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 50.0 at 30 FPS"
+
+        -- case 3
+        frameRate = 30
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationEndFrame = 0
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 30 FPS for MaxAnimationEndFrame set to 0"
+        assert_float_equal 0.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 0.0 at 30 FPS for MaxAnimationEndFrame set to 0"
+
+        -- case 4
+        frameRate = 30
+        stageObject.CustomAnimationStartFrame = 30
+        stageObject.CustomAnimationEndFrame = 30
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 30.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 30.0 at 30 FPS for MaxAnimationEndFrame set to 30"
+        assert_float_equal 30.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 30.0 at 30 FPS for MaxAnimationEndFrame set to 30"
+
+    ),
+
+    function test_custom_timecode_playback = (
+        local stageObject = USDStageObject name:"stageAnimPlaybackTestObj"        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile
+
+        -- Set animation mode to custom playback frame to 3
+        stageObject.AnimationMode = 3
+        local sourceTPS = stageObject.SourceAnimationTPS
+        local sourceStartTimeCode = stageObject.SourceAnimationStartTimeCode
+        local sourceEndTimeCode = stageObject.SourceAnimationEndTimeCode
+        local maxStartFrame = stageObject.MaxAnimationStartFrame
+        local maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        -- Make sure the source file we are testing holds this value assumption as the constants
+        -- tested in following tests are based on these start and end time codes
+        assert_float_equal 101.0 sourceStartTimeCode message:"The stage.GetStartTimeCode() value should be equal to 101.0"
+        assert_float_equal 129.0 sourceEndTimeCode message:"The stage.GetEndTimeCode() value should be equal to 129.0"
+        assert_float_equal 24.0 sourceTPS message:"The SourceAnimationTPS value should be equal to 24.0"
+
+        -- case 1
+        frameRate = 24
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 101.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 101.0 at 24 FPS (matching)"
+        assert_float_equal 129.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 129.0 at 24 FPS (matching)"
+
+        -- case 2
+        frameRate = 30
+        maxStartFrame = stageObject.MaxAnimationStartFrame
+        maxEndFrame = stageObject.MaxAnimationEndFrame
+
+        assert_float_equal 101.0 maxStartFrame message:"The MaxAnimationStartFrame value should be equal to 101.0 at 30 FPS"
+        assert_float_equal 129.0 maxEndFrame message:"The MaxAnimationEndFrame value should be equal to 129.0 at 30 FPS"
+    ),
+    
+    -- Test the RenderUsdTimeCode param, informs of the currently renderered USD time code,
+    -- considering animation playback configuration.
+    function test_usd_render_time = (
+        local stageObject = USDStageObject()
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sampleFile = (testDataDir + @"data\usd_anim_playback_test_sample.usda")
+        stageObject.SetRootLayer sampleFile        
+        -- High level testing that the value computed reacts correctly to the requested time, 
+        -- and animation modes. The computation itself is tested via all the config tests
+        -- earlier in this file.            
+        assert_equal 0.0 stageObject.RenderUsdTimeCode
+        -- Check at frame 10... expect time code 8.0 
+        -- 24 timecode/sec in the file VS 3dsMax 30 FPS.
+        at time 10 assert_equal 8.0 stageObject.RenderUsdTimeCode
+        -- Change the animation mode, and validate again.
+        stageObject.AnimationMode = 1
+        assert_equal 101.0 stageObject.RenderUsdTimeCode
+        at time 10 assert_equal 109.0 stageObject.RenderUsdTimeCode        
+    ),    
+        
+    function teardown = (
+        resetMaxFile #noprompt
+    ),
+
+    Tests = #(test_source_params, 
+        test_original_range, 
+        test_custom_start_and_speed, 
+        test_custom_range, 
+        test_custom_timecode_playback,
+        test_usd_render_time)
+)
+
+runUsdTestFixture stage_custom_animation_playback_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/stage_general_test.ms b/src/Tests/Integration/stage_general_test.ms
new file mode 100644
index 0000000..e1e8883
--- /dev/null
+++ b/src/Tests/Integration/stage_general_test.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct stage_general_test
+(  
+    private 
+    test_python_path,
+   
+    public 
+    function setup =
+    (
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+    
+    function test_stage_general_cases = 
+    (
+        python.Execute "from importlib import reload"
+        python.Execute "import stage_general_test"
+        python.Execute "reload(stage_general_test)"
+        python_test = python.import("stage_general_test")		
+        results = python_test.run_tests()
+        processPythonUnittestResults results
+    ), 
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+    
+    Tests = #(
+        test_stage_general_cases
+    )
+)
+
+runUsdTestFixture stage_general_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/stage_general_test.py b/src/Tests/Integration/stage_general_test.py
new file mode 100644
index 0000000..74e7076
--- /dev/null
+++ b/src/Tests/Integration/stage_general_test.py
@@ -0,0 +1,346 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import pymxs
+
+import unittest
+import sys
+import os
+
+from pxr import Sdf, Usd, UsdUtils, UsdGeom
+
+import maxUsd
+import ufe
+import usdUfe
+
+import usd_test_helpers
+
+mxs = pymxs.runtime
+
+mxs.pluginManager.loadClass(mxs.USDStageObject)
+
+class TestStageGeneral(unittest.TestCase):
+
+    def setUp(self):
+        self.output_prefix = usd_test_helpers.standard_output_prefix("STAGE_GENERAL_")
+        usd_test_helpers.load_usd_plugins()
+        mxs.resetMaxFile(mxs.Name("noprompt"))
+
+        box = mxs.Box(name="box")
+        self.test_usd_file_path = self.output_prefix + "box.usda"
+        export_options = mxs.USDExporter.CreateOptions()
+        export_options.FileFormat = mxs.Name("ascii")
+        export_options.RootPrimPath = "/"
+        ret = mxs.USDExporter.ExportFile(
+            self.test_usd_file_path,
+            exportOptions=export_options
+        )
+
+    def tearDown(self) -> None:
+        return None
+
+    def test_stage_classname(self):
+        maxUsdObj = mxs.USDStageObject()
+        self.assertEqual(mxs.GetClassName(maxUsdObj), "USD Stage")
+
+    def test_default_payload_rules(self):
+        maxUsdObj = mxs.USDStageObject()
+        maxUsdObj.SetRootLayer(self.test_usd_file_path, stageMask='/')
+
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(maxUsdObj.CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 0)
+
+    def test_reload_all_layers(self):
+        maxUsdObj = mxs.USDStageObject()
+        maxUsdObj.SetRootLayer(self.test_usd_file_path, stageMask='/')
+        initial_units_per_meter = maxUsdObj.SourceMetersPerUnit
+
+        stage = Usd.Stage.Open(self.test_usd_file_path)
+        new_units_per_meter = 0.4
+        UsdGeom.SetStageMetersPerUnit(stage, new_units_per_meter)
+        stage.GetRootLayer().Save()
+
+        maxUsdObj.Reload()
+        self.assertAlmostEqual(new_units_per_meter, maxUsdObj.SourceMetersPerUnit, places=6)
+
+    def test_deactivation_crash_fix(self):
+        # Test crash fix, see https://jira.autodesk.com/browse/MAXX-71391
+        stageObject = mxs.USDStageObject()
+        testDataDir = os.path.dirname(__file__)
+        sampleFile = (testDataDir + "\\data\\instance_deactivate_crash.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/')
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        # Deactivation/deletion was not properly handled, leading to bad render data being used, leading to crashes.
+        prim = stage.GetPrimAtPath("/root/teapot_ref004")
+        prim.SetActive(False)
+        stageObject.DisplayProxy = False
+        stageObject.DisplayRender = True
+        
+    def test_make_invisible_instanced_child_crash(self):        
+        # Test crash fix see https://jira.autodesk.com/browse/MAXX-74798
+        stageObject = mxs.USDStageObject()
+        testDataDir = os.path.dirname(__file__)
+        sampleFile = (testDataDir + "\\data\\instance_vis_crash.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/')
+        stageObject.Reload()
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        # Use of make invisible on a instanced prim, if the parent was already hidden 
+        # was causing a crash.
+        parentPrim = stage.GetPrimAtPath("/root/Box003")
+        parentImg = UsdGeom.Imageable(parentPrim)
+        parentImg.MakeInvisible()
+        # Force redraw to make sure the invis. is completed independantly.
+        mxs.forceCompleteRedraw()
+        # Hide child, used to crash at the render.
+        childPrim = stage.GetPrimAtPath("/root/Box003/Box002")
+        childImg = UsdGeom.Imageable(childPrim)
+        childImg.MakeInvisible()
+        mxs.forceCompleteRedraw()
+        
+    # Testing the clear session layer mxs function. This function is basically what runs when
+    # the button is hit from the UI.
+    def test_clear_session_layer(self):
+        maxUsdObj = mxs.USDStageObject()
+        maxUsdObj.SetRootLayer(self.test_usd_file_path, stageMask='/')
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(maxUsdObj.CacheId))
+        
+        boxPrim = stage.GetPrimAtPath("/box")
+        stage.SetEditTarget(stage.GetSessionLayer())
+        
+        visAttr = UsdGeom.Imageable(boxPrim).GetVisibilityAttr()
+        visAttr.Set(UsdGeom.Tokens.invisible)
+        
+        self.assertEqual(visAttr.Get(),UsdGeom.Tokens.invisible)
+        maxUsdObj.ClearSessionLayer()
+        self.assertEqual(visAttr.Get(),UsdGeom.Tokens.inherited)        
+    
+    # Checks if the given prim's visibility matches the passed token.
+    def check_prim_vis(self, stageId, primPath, token):
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageId))
+        prim = stage.GetPrimAtPath(primPath)
+        visAttr = UsdGeom.Imageable(prim).GetVisibilityAttr()
+        self.assertEqual(visAttr.Get(), token)    
+    
+    # Test the save & load of the session layer to the .max scene.
+    def test_save_load_session_layer(self):
+        # Create a simple stage.
+        stageName = "stage"
+        maxUsdObj = mxs.USDStageObject(name=stageName)
+        maxUsdObj.SetRootLayer(self.test_usd_file_path, stageMask='/')
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(maxUsdObj.CacheId))
+        
+        # Hide a prim on the session layer, and save the max scene to disk.
+        primPath = "/box"
+        boxPrim = stage.GetPrimAtPath(primPath)
+        stage.SetEditTarget(stage.GetSessionLayer())
+        visAttr = UsdGeom.Imageable(boxPrim).GetVisibilityAttr()
+        visAttr.Set(UsdGeom.Tokens.invisible)
+        maxSceneSavePath = self.output_prefix + "test_save_load_of_primvar_mapping.max"
+        mxs.saveMaxFile(maxSceneSavePath, quiet=True)
+                    
+        # Load the scene from disk, make sure the prim is hidden, 
+        # meaning the session layer was properly loaded & applied).
+        mxs.loadMaxFile(maxSceneSavePath)
+        loadedStageObject = mxs.getNodeByName(stageName)
+        self.check_prim_vis(loadedStageObject.CacheId, primPath, UsdGeom.Tokens.invisible)
+        
+        # Clear the session layer, and reload the file (without saving).
+        loadedStageObject.ClearSessionLayer()
+        mxs.loadMaxFile(maxSceneSavePath)
+        # Prim should still be hidden, as we did not save the .max scene, and so the session
+        # layer was not serialized.
+        loadedStageObject = mxs.getNodeByName(stageName)
+        self.check_prim_vis(loadedStageObject.CacheId, primPath, UsdGeom.Tokens.invisible)
+
+        # Clear the session layer again, but this time, save.
+        loadedStageObject.ClearSessionLayer()
+        mxs.saveMaxFile(maxSceneSavePath, quiet=True)
+        
+        # Reload the .max file. The prim should be visible - the prim was hidden from the session
+        # layer, which was cleared (and in its empty state).
+        mxs.loadMaxFile(maxSceneSavePath)
+        loadedStageObject = mxs.getNodeByName(stageName)
+        self.check_prim_vis(loadedStageObject.CacheId, primPath, UsdGeom.Tokens.inherited)
+
+    def test_get_ufe_prim_path(self):
+        
+        # Create a simple stage object.
+        maxUsdObj = mxs.USDStageObject()
+        maxUsdObj.SetRootLayer(self.test_usd_file_path, stageMask='/')
+                        
+        # Test absolute root path
+        pathStr = maxUsd.GetUsdPrimUfePath(maxUsdObj.handle, "/")
+        expectedStr = "/" + maxUsdObj.Guid
+        self.assertEqual(expectedStr, pathStr)
+        # Conversion to a ufe path, will throw on failure. Failing the test.
+        ufe.PathString.path(pathStr)
+        
+        # Test valid prim path
+        pathStr = maxUsd.GetUsdPrimUfePath(maxUsdObj.handle, "/box")
+        expectedStr = "/" + maxUsdObj.Guid + ",/box"
+        self.assertEqual(expectedStr, pathStr)
+        # Conversion to a ufe path, will throw on failure. Failing the test.
+        ufe.PathString.path(pathStr)
+        
+        # Test invalid prim path
+        pathStr = maxUsd.GetUsdPrimUfePath(maxUsdObj.handle, "/nothing")
+        self.assertEqual("", pathStr)
+        
+        # Test invalid object handle
+        pathStr = maxUsd.GetUsdPrimUfePath(999, "/")
+        self.assertEqual("", pathStr)
+        
+        # Test object handle of non-usd object.
+        pathStr = maxUsd.GetUsdPrimUfePath(mxs.box().handle, "/")
+        self.assertEqual("", pathStr)
+                
+        # Test stage object with no loaded usd stage.
+        emptyStageObj = mxs.USDStageObject()
+        pathStr = maxUsd.GetUsdPrimUfePath(emptyStageObj.handle, "/")
+        self.assertEqual("", pathStr)
+
+    def test_payload_none_legacy(self):
+        testDataDir = os.path.dirname(__file__)
+        sampleLegacyFile = (testDataDir + "\\data\\stage_payload_none_legacy.max")
+        mxs.loadMaxFile(sampleLegacyFile)
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(mxs.objects[0].CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+
+    def test_save_payload_rules(self):
+        # remove the setup object that was created before executing the rest of this test
+        mxs.delete(mxs.objects[0])
+
+        stageName = "stage"
+        stageObject = mxs.USDStageObject(name=stageName)
+        testDataDir = os.path.dirname(__file__)
+        sampleFile = (testDataDir + "\\data\\stage_payload.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/')
+
+        # the stage should not have any specific payload rules applied on it
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 0)
+
+        # unload a section of the stage
+        pathStr = maxUsd.GetUsdPrimUfePath(stageObject.handle, "/StagePayloadTest/NativeGeoms")
+        unloadCommand = usdUfe.UnloadPayloadCommand(usdUfe.ufePathToPrim(pathStr))
+        unloadCommand.execute()
+
+        # the stage should now have payload rule applied on it
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 1)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+
+        # save the scene with an unloaded stage section
+        maxSceneSavePath = self.output_prefix + "test_save_load_payload_rules.max"
+        mxs.saveMaxFile(maxSceneSavePath, quiet=True)
+                    
+        # Load the scene from disk, make sure the payload rules were applied
+        mxs.loadMaxFile(maxSceneSavePath)
+        loadedStageObject = mxs.getNodeByName(stageName)
+        # the stage should have the same payload rule as the file was saved with
+        stageObject = mxs.objects[0]
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 1)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+
+        # reload payloads for a section of the stage
+        # and be more specific about a given payload we want to unload
+        pathStr = maxUsd.GetUsdPrimUfePath(stageObject.handle, "/StagePayloadTest/NativeGeoms")
+        loadCommand = usdUfe.LoadPayloadCommand(usdUfe.ufePathToPrim(pathStr), Usd.LoadWithDescendants)
+        loadCommand.execute()
+        pathStr = maxUsd.GetUsdPrimUfePath(stageObject.handle, "/StagePayloadTest/NativeGeoms/Cone")
+        unloadCommand = usdUfe.UnloadPayloadCommand(usdUfe.ufePathToPrim(pathStr))
+        unloadCommand.execute()
+        # the stage should have a payload rule to include all payload from the specified path and all descendants
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 2)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms") and item[1] == Usd.StageLoadRules.AllRule]), 1)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms/Cone") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+
+        # save the scene with an loaded stage section
+        maxSceneSavePath = self.output_prefix + "test_resave_load_payload_rules.max"
+        mxs.saveMaxFile(maxSceneSavePath, quiet=True)
+                    
+        # Load the scene from disk, make sure the payload rules were applied
+        mxs.loadMaxFile(maxSceneSavePath)
+        loadedStageObject = mxs.getNodeByName(stageName)
+        # the stage should have the same payload rule as the file was saved with
+        stageObject = mxs.objects[0]
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 2)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms") and item[1] == Usd.StageLoadRules.AllRule]), 1)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/StagePayloadTest/NativeGeoms/Cone") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+        
+    def test_stage_geometry_stats(self):
+        # Making sure that the stage object reports geometry stats correctly.
+        stageObject = mxs.USDStageObject()
+        testDataDir = os.path.dirname(__file__)
+        # Use this test scene as it has a mixture of instanced and non-instanced data : 
+        # - 3 instanced boxes (18 faces, 24 verts)
+        # - 3 planes of 4 faces each (12 faces, 27 verts)
+        sampleFile = (testDataDir + "\\data\\consolidation_instance_subset_mixed.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/')
+        mxs.forceCompleteRedraw()
+        stats = mxs.getPolygonCount(stageObject)
+        self.assertEqual(stats[0], 30) #numFaces
+        self.assertEqual(stats[1], 51) #numVerts
+        
+    def test_default_edit_target_to_session_layer(self):
+        # Making sure that upon initialization, the edit target is initialized to the session layer.
+        stageObject = mxs.USDStageObject()
+        testDataDir = os.path.dirname(__file__)
+        sampleFile = (testDataDir + "\\data\\box_sample.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/')
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        self.assertEqual(stage.GetEditTarget(), stage.GetSessionLayer())        
+
+    def test_stage_without_loading_payloads(self):
+        # remove the setup object that was created before executing the rest of this test
+        mxs.delete(mxs.objects[0])
+
+        stageName = "stage"
+        stageObject = mxs.USDStageObject(name=stageName)
+        testDataDir = os.path.dirname(__file__)
+        sampleFile = (testDataDir + "\\data\\stage_payload.usda")
+        stageObject.SetRootLayer(sampleFile, stageMask='/', payloadsLoaded=False)
+
+        # the stage should have a rules set to load nothing directly at root
+        stageCache = UsdUtils.StageCache.Get()
+        stage = stageCache.Find(Usd.StageCache.Id.FromLongInt(stageObject.CacheId))
+        loadRules = stage.GetLoadRules().GetRules()
+        self.assertEqual(len(loadRules), 1)
+        self.assertEqual(len([item for item in loadRules if item[0] == Sdf.Path("/") and item[1] == Usd.StageLoadRules.NoneRule]), 1)
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestStageGeneral))
+
+if __name__ == '__main__':
+    run_tests()
diff --git a/src/Tests/Integration/system_test.ms b/src/Tests/Integration/system_test.ms
new file mode 100644
index 0000000..5c2fc97
--- /dev/null
+++ b/src/Tests/Integration/system_test.ms
@@ -0,0 +1,47 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+clearlistener()
+
+-- Load up the system test GUP.
+scriptPath = getThisScriptFilename()
+testPath = (pathConfig.removePathLeaf scriptPath) + @"\SystemTestGup\"
+loadDllsFromDir testPath "*.gup"
+
+struct system_tests
+(
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function test_system = (
+        USDSystemTests.RunTests()
+    ),
+    
+    function teardown = (
+        -- Nothing to do.
+    ),
+
+    tests = #(test_system)
+)
+
+runUsdTestFixture system_tests (getThisScriptFilename())
diff --git a/src/Tests/Integration/timesampling_test.ms b/src/Tests/Integration/timesampling_test.ms
new file mode 100644
index 0000000..7d423ca
--- /dev/null
+++ b/src/Tests/Integration/timesampling_test.ms
@@ -0,0 +1,139 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+fileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdGeom = python.import("pxr.UsdGeom")
+pyGf = python.import("pxr.Gf")
+pyVt = python.import("pxr.Vt")
+pySdf = python.import("pxr.Sdf")
+pyUsdLux = python.import("pxr.UsdLux")
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/TIMESPAMPLING_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+
+struct timesampling_test
+(
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetmaxfile #noprompt
+    ),
+
+    -- We test the conversion of time-sampled data in depth in the C++ tests. 
+    -- Just testing that everything is wired up correctly here.
+    function test_import_at_timecode = (
+        local stagePath = (output_prefix + "TIMCODE_IMPORT.usda")
+        local stage = pyUsd.Stage.CreateNew(stagePath)
+        pyUsdGeom.SetStageUpAxis stage pyUsdGeom.Tokens.z
+        stage.SetStartTimeCode(0)
+        stage.SetEndTimeCode(1)
+        
+        -- Create prims and configure them differently at the default timecode 
+        -- and timecode 1, then import at timeCode 1.
+            
+        -- Create a simple mesh.
+        local fooPrim = pyUsdGeom.Mesh.Define stage "/foo"
+        local pointsAtt = fooPrim.CreatePointsAttr()
+        pointsAtt.Set (pyVt.Vec3fArray (#((pyGf.Vec3f 1 1 1), (pyGf.Vec3f 2 2 2), (pyGf.Vec3f 3 3 3) , (pyGf.Vec3f 4 4 4)))) -- default
+        pointsAtt.Set (pyVt.Vec3fArray (#((pyGf.Vec3f 0 0 0), (pyGf.Vec3f 0 1 0), (pyGf.Vec3f 0 0 1)))) 1 -- 1
+        local vertexCounts = fooPrim.CreateFaceVertexCountsAttr()
+        vertexCounts.Set (pyVt.IntArray #(4)) -- default
+        vertexCounts.Set (pyVt.IntArray #(3)) 1
+        local vertexIndidces = fooPrim.CreateFaceVertexIndicesAttr()
+        vertexIndidces.Set (pyVt.IntArray #(0, 1, 2, 3)) -- default
+        vertexIndidces.Set (pyVt.IntArray #(2, 1, 0)) 1
+        
+        -- Add an animated transform..
+        local translateOp = fooPrim.AddTranslateOp()
+        translateOp.Set (pyGf.Vec3f 0 0 5) -- default
+        translateOp.Set (pyGf.Vec3f 0 0 15) 1
+        
+        -- Add an animated purpose
+        local purposeAttr = (pyUsdGeom.Imageable(fooPrim)).CreatePurposeAttr()
+        purposeAttr.Set "render" -- default
+        purposeAttr.Set "proxy" 1
+        
+        -- Create a light.
+        local lightPrim = pyUsdLux.DiskLight.Define stage "/light"
+        local radiusAttr = lightPrim.CreateRadiusAttr()
+        radiusAttr.Set 5 -- default
+        radiusAttr.Set 25 1
+            
+        -- Create a camera.
+        local cameraPrim = pyUsdGeom.Camera.Define stage "/camera"
+        local clippingAttr = cameraPrim.CreateClippingRangeAttr()
+        clippingAttr.Set (pyGf.Vec2f 25 75) -- default
+        clippingAttr.Set (pyGf.Vec2f 50 100) 1
+        (stage.GetRootLayer()).Save()
+
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+            
+        -- Import the file in Max at timecode 1.
+        local importOptions = USDImporter.CreateOptions()
+        importOptions.TimeMode = #customRange
+        importOptions.StartTimeCode = 1
+        USDImporter.ImportFile stagePath importOptions:importOptions
+        
+        -- Check the imported geometry...
+        local fooNode = getNodeByName "foo"
+        in coordsys local (
+            local badVertexMsg = "Incorrect vertex position for timecode 1."
+            assert_point3_equal (point3 0.f 0.f 0.f) (polyop.getVert fooNode 1) message:badVertexMsg
+            assert_point3_equal (point3 0.f 1.f 0.f) (polyop.getVert fooNode 2) message:badVertexMsg
+            assert_point3_equal (point3 0.f 0.f 1.f) (polyop.getVert fooNode 3) message:badVertexMsg
+        )
+        local badIndexMsg = "Incorrect face index timecode 1."
+        assert_equal 3 (fooNode.GetFaceVertex 1 1) message:badIndexMsg
+        assert_equal 2 (fooNode.GetFaceVertex 1 2) message:badIndexMsg
+        assert_equal 1 (fooNode.GetFaceVertex 1 3) message:badIndexMsg
+            
+        -- Node position...
+        assert_equal 15 fooNode.position.z message:"Incorrect node position for timecode 1."
+        
+        -- Purpose metadata...
+        assert_equal "proxy" fooNode.usd_purpose
+        
+        -- Light...
+        local lightNode = getNodeByName "light"
+        assert_equal 25 lightNode.radius message:"Incorrect light radius for timecode 1."
+        
+        -- Cameras... 
+        local cameraNode = getNodeByName "camera" message:"Incorrect camera clipping range for timecode 1."
+        assert_equal 50 cameraNode.nearclip
+        assert_equal 100 cameraNode.farclip
+   ),
+        
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    tests = #(test_import_at_timecode)
+)
+
+runUsdTestFixture timesampling_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/usd_camera_object_test.ms b/src/Tests/Integration/usd_camera_object_test.ms
new file mode 100644
index 0000000..39b8dff
--- /dev/null
+++ b/src/Tests/Integration/usd_camera_object_test.ms
@@ -0,0 +1,379 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pyGf = python.import("pxr.Gf")
+
+testDataDir = (getFilenamePath (getThisScriptFilename())) + @"data\"
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/USD_CAMERA_OBJECT_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+    
+struct usd_camera_object_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale        
+        resetMaxFile #noprompt
+    ),
+    
+    function generatecameras_test = (
+    
+        animated_camera_file = (testDataDir + @"animated_camera.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_camera_file
+        
+        -- Test toggling the option.
+        stageObject.GenerateCameras = true
+        assert_defined $PhysCamera001
+        stageObject.GenerateCameras = false
+        assert_undefined $PhysCamera001
+        stageObject.GenerateCameras = true
+        assert_defined $PhysCamera001
+        
+        local cameraPrimPath = "/root/PhysCamera001"
+        
+        -- Test the camera's setup.
+        local cam = $PhysCamera001
+        assert_equal cam.USDStage stageObject
+        assert_equal cam.CameraPrimPath cameraPrimPath 
+        
+        -- Camera should have a transform controller following the camera prim.
+        assert_equal (classOf cam.transform.controller) USDXformableController
+        assert_equal cam.transform.controller.USDStage stageObject
+        assert_equal cam.transform.controller.XformablePrimPath cameraPrimPath
+        
+        -- Cameras are not (easily) deletable - it is blocked from the transform controller.
+        assert_true cam.transform.controller.PreventsNodeDeletion
+        delete cam
+        assert_true (IsValidNode cam)
+    ),
+
+    function rootfile_change_test = (
+        
+        -- File with a single usd camera (PhysCamera001)
+        animated_camera_file = (testDataDir + @"animated_camera.usda")
+        -- File with two usd cameras (Cam1 and Cam2)
+        animated_camera_file_2 = (testDataDir + @"animated_camera_2.usda")
+        
+        no_camera_file = (testDataDir + @"cube_native.usda")
+        
+        local stageObject = USDStageObject()
+        
+        local sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        stageObject.GenerateCameras = true
+        stageObject.SetRootLayer animated_camera_file
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 1
+        assert_defined $PhysCamera001
+        
+        stageObject.SetRootLayer animated_camera_file_2
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        stageObject.SetRootLayer no_camera_file
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        stageObject.SetRootLayer animated_camera_file
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 1
+        assert_defined $PhysCamera001
+    ),
+    
+    function deactivated_cameras = (
+        
+        -- File with two usd cameras (Cam1 and Cam2)
+        animated_camera_file_2 = (testDataDir + @"animated_camera_2.usda")
+                
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_camera_file_2
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        local cam2 = $Cam2
+        
+        -- Toggle the activate state of Cam1 (in this case, camera is still part of traversal, but inactive)
+        
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stageObject.cacheId))
+        local cam1Prim = stage.GetPrimAtPath("/root/Cam1")
+        
+        cam1Prim.SetActive false
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 1
+        assert_defined $Cam2
+        -- Also make sure that we didnt rebuild Cam2, it is the same as before
+        assert_equal cam2 $Cam2
+            
+        cam1Prim.SetActive true
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        -- Toggle the active state of /root, in this case, the cameras are not even part of the traversal.
+        local rootPrim = stage.GetPrimAtPath("/root")
+        
+        rootPrim.SetActive false
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        rootPrim.SetActive true
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+    ),
+    
+    -- Test that the camera node(s) are cleaned up if the stage object is removed from the scene.
+    function delete_and_undo_test = (
+
+        animated_camera_file = (testDataDir + @"animated_camera_2.usda")
+        
+        undo on (
+            local stageObject = USDStageObject()
+            stageObject.SetRootLayer animated_camera_file        
+        )
+            
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        -- Remove the object via undo, cameras removed.
+        max undo
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        -- Readd via redo, cameras back.
+        max redo
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        -- Delete the stage, removes cameras.
+        undo on (
+            delete stageObject
+        )
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        -- Undo delete, readds cameras.
+        max undo
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+        
+        -- Redo delete, removes cameras again.
+        max redo
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0            
+    ),
+       
+    -- Seperate test for a specific undo pattern which previously caused a crash.
+    function undo_ref_file_change = (
+
+        animated_camera_file = (testDataDir + @"animated_camera_2.usda")
+        
+        -- Mimic the USD Reference macro
+        undo on (
+            local stageObject = USDStageObject()
+            stageObject.SetRootLayer animated_camera_file        
+        )
+        
+        local sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        
+        no_cam_file = (testDataDir + @"cube_native.usda")
+        undo on (
+            stageObject.SetRootLayer no_cam_file
+        )
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        max undo 
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        
+        max undo 
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 0
+        
+        max undo 
+        
+        local allObjects = objects as Array
+        assert_equal allObjects.Count 0
+    ),
+    
+    -- Another undo scenario that has previously caused crashes.
+    function camera_node_select_undo_redo = (
+        
+        -- Here, the camera is selected in an undoable op. 
+        -- As everything is undone and redone, it is crucial that the same exact cameras
+        -- are re-added, and not newly rebuilt from scratch-- Otherwise when attempting to redo 
+        -- the selection, that would crash.
+        
+        animated_camera_file = (testDataDir + @"animated_camera_2.usda")
+        undo on (
+            local stageObject = USDStageObject()
+            stageObject.SetRootLayer animated_camera_file        
+        )
+            
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        
+        undo on (
+            select $Cam1
+        )
+        
+        max undo -- undo selection 
+        max undo -- undo stage setup
+        max redo -- redo stage setup
+        max redo -- redo selection of Cam1
+        
+        assert_equal selection[1] $Cam1 
+    ),
+    
+    function stage_instancing_test = (
+    
+        animated_camera_file = (testDataDir + @"animated_camera_2.usda")
+        
+        undo on (
+            local stageObject = USDStageObject()
+            stageObject.SetRootLayer animated_camera_file
+        )
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+                
+        with undo on (
+            instancedStage = create_clone stageObject #instance "stageInstance"
+        )
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 4
+        assert_equal sceneCams[1].Name "Cam1"
+        assert_equal sceneCams[2].Name "Cam2"
+        assert_equal sceneCams[3].Name "Cam1"
+        assert_equal sceneCams[4].Name "Cam2"
+        
+        max undo
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+    ),
+    
+    function stage_copy_test = (
+    
+        animated_camera_file = (testDataDir + @"animated_camera_2.usda")
+        
+        undo on (
+            local stageObject = USDStageObject()
+            stageObject.SetRootLayer animated_camera_file
+        )
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+                
+        with undo on (
+            instancedStage = create_clone stageObject #copy "stageCopy"
+        )
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 4
+        assert_equal sceneCams[1].Name "Cam1"
+        assert_equal sceneCams[2].Name "Cam2"
+        assert_equal sceneCams[3].Name "Cam1"
+        assert_equal sceneCams[4].Name "Cam2"
+        
+        max undo
+        
+        sceneCams = cameras as Array
+        assert_equal sceneCams.Count 2
+        assert_defined $Cam1
+        assert_defined $Cam2
+    ),    
+
+    -- Tests that adding a modifier onto cameras doesnt interfere with the 
+    -- management of cameras (top of the mod stack will not be a USDCameraObject,
+    -- but a derived object).
+    function modifier_on_camera_test = (
+    
+        animated_camera_file = (testDataDir + @"animated_camera.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_camera_file
+      
+        local cam = $PhysCamera001
+        assert_defined cam
+        
+        mirrorMod = Mirror()
+        addModifier cam mirrorMod
+        
+        delete stageObject
+        assert_false (IsValidNode cam)
+    ),        
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        generatecameras_test,
+        rootfile_change_test,
+        deactivated_cameras,
+        delete_and_undo_test,
+        stage_instancing_test,
+        stage_copy_test,
+        undo_ref_file_change,
+        camera_node_select_undo_redo,
+        modifier_on_camera_test
+    )
+)
+
+runUsdTestFixture usd_camera_object_test(getThisScriptFilename())
diff --git a/src/Tests/Integration/usd_explorer_test.ms b/src/Tests/Integration/usd_explorer_test.ms
new file mode 100644
index 0000000..6cbf78c
--- /dev/null
+++ b/src/Tests/Integration/usd_explorer_test.ms
@@ -0,0 +1,84 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct usd_explorer_test
+(  
+    private 
+    originalFileFormatOption,
+    exportMaterialTestOptions = USDExporter.CreateOptions(),
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+	function findUsdExplorer = (
+		local dialogs = UIAccessor.GetPopupDialogs()
+		for d in dialogs do (
+			if (UIAccessor.GetWindowText d) == "USD Explorer" then return true
+		)
+		return false
+	),
+	
+    function test_explorer_stage_open_close = (
+        
+        local stageObject = USDStageObject()
+                
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local sample = (testDataDir + @"data\box_sample.usda")
+        stageObject.SetRootLayer sample
+			
+		-- Open via the object function.
+		stageObject.OpenInUsdExplorer()
+		assert_true (findUsdExplorer())
+		
+		-- Close the tab for the explorer. We only test that the explorer itself is still opened.
+		stageObject.CloseInUsdExplorer()
+		assert_true (findUsdExplorer())
+			
+		-- Actually close the explorer.
+		USDStageObject.CloseUsdExplorer()
+		assert_false (findUsdExplorer())
+		
+		-- Open the explorer via static funciton.
+		USDStageObject.OpenUsdExplorer()
+		assert_true (findUsdExplorer())
+		
+		-- Close it again (from state where it has no stage active)
+		USDStageObject.CloseUsdExplorer()
+		assert_false (findUsdExplorer())
+
+		-- Close stage that isnt in explorer - no-op.
+		stageObject.CloseInUsdExplorer()
+		assert_false (findUsdExplorer())
+	),
+	
+    function teardown =
+    (
+    ),	
+
+    Tests = #(
+        test_explorer_stage_open_close
+    )
+)
+
+runUsdTestFixture usd_explorer_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/usd_prs_controllers_test.ms b/src/Tests/Integration/usd_prs_controllers_test.ms
new file mode 100644
index 0000000..184d548
--- /dev/null
+++ b/src/Tests/Integration/usd_prs_controllers_test.ms
@@ -0,0 +1,233 @@
+--
+-- Copyright 2024 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pyGf = python.import("pxr.Gf")
+
+testDataDir = (getFilenamePath (getThisScriptFilename())) + @"data\"
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/USD_PTRS_CONTROLLERS_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+    
+struct usd_prs_controllers_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetMaxFile #noprompt
+        units.SystemType = #inches
+        units.SystemScale = 1
+    ),
+    
+    -- Test assigning controllers to drive the position, rotation, and scale individually.
+    -- This confirms that the full transform gets built correctly, meaning the controllers
+    -- update the matrix they are given correctly (pretranslate, prescale, prerotate).
+    function prs_controllers_from_xformable_test = (
+        
+        local testBox = Box pos:[0,0,10]
+        
+        prs_test_file = (testDataDir + @"prs_controller_data.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer prs_test_file
+        
+        local posControl = USDPositionController()        
+        testBox.position.controller = posControl
+        
+        local rotControl = USDRotationController()        
+        testBox.rotation.controller = rotControl
+        
+        local scaleControl = USDScaleController()        
+        testBox.scale.controller = scaleControl
+        
+        
+        -- No prim bound yet, defaults to origin
+        assert_equal testBox.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+                
+        local boxPrimPath = "/root/Box001"
+        
+        posControl.USDStage = stageObject
+        posControl.Path = boxPrimPath
+        
+        rotControl.USDStage = stageObject
+        rotControl.Path = boxPrimPath
+        
+        scaleControl.USDStage = stageObject
+        scaleControl.Path = boxPrimPath
+        
+        sliderTime = 0
+        assert_matrix_equal (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0]) testBox.transform -- CTRL_RELATIVE
+        assert_point3_equal (Point3 0 0 0) testBox.position -- CTRL_ABSOLUTE
+        assert_quat_equal (Quat 0 0 0 0) testBox.rotation
+        assert_point3_equal (Point3 1 1 1) testBox.scale
+        sliderTime = 1
+        assert_matrix_equal (matrix3 [0.799188,0.344736,0] [-0.344736,0.799188,0] [0,0,0.87037] [12.963,0,0]) testBox.transform
+        assert_point3_equal (Point3 12.963 0 0) testBox.position
+        assert_quat_equal (Quat 0 0 0.202218 0.979341) testBox.rotation
+        assert_point3_equal (Point3 0.87037 0.87037 0.87037) testBox.scale        
+        sliderTime = 2
+        assert_matrix_equal (matrix3 [0.249384,0.578136,0] [-0.578136,0.249384,0] [0,0,0.62963] [37.037,0,0]) testBox.transform 
+        assert_point3_equal (Point3 37.037 0 0) testBox.position
+        assert_quat_equal (Quat 0 0 0.549509 0.835488) testBox.rotation
+        assert_point3_equal (Point3 0.62963 0.62963 0.62963) testBox.scale        
+        sliderTime = 3
+        assert_matrix_equal (matrix3 [0,0.5,0] [-0.5,0,0] [0,0,0.5] [50,0,0]) testBox.transform 
+        assert_point3_equal (Point3 50 0 0) testBox.position
+        assert_quat_equal (Quat 0 0 0.707107 0.707107) testBox.rotation
+        assert_point3_equal (Point3 0.5 0.5 0.5) testBox.scale
+    ),
+    
+    function prs_controllers_from_attr_test = (
+            
+        local testBox = Box pos:[0,0,10]
+        
+        prs_test_file = (testDataDir + @"prs_controller_data.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.Reload()
+        stageObject.SetRootLayer prs_test_file
+        
+        local posControl = USDPositionController()        
+        testBox.position.controller = posControl
+        
+        local rotControl = USDRotationController()        
+        testBox.rotation.controller = rotControl
+        
+        local scaleControl = USDScaleController()        
+        testBox.scale.controller = scaleControl
+        
+        posControl.USDStage = stageObject
+        posControl.Path = "/root/Box001.posVal"
+        
+        rotControl.USDStage = stageObject
+        rotControl.Path = "/root/Box001.rotVal"
+        
+        scaleControl.USDStage = stageObject
+        scaleControl.Path = "/root/Box001.scaleVal"
+        
+        -- We already tested the CTRL_RELATIVE code path in prs_controllers_from_xformable_test()
+        -- Here, just test using the position/scale/rotation getters.
+        sliderTime = 0
+        assert_point3_equal (Point3 10 10 10) testBox.position
+        assert_quat_equal (Quat 0.707 0 0 0.707) testBox.rotation
+        assert_point3_equal (Point3 1 1 1) testBox.scale
+        sliderTime = 1
+        assert_point3_equal (Point3 20 20 20) testBox.position
+        assert_quat_equal (Quat 0.5 0.5 0.5 0.5) testBox.rotation
+        assert_point3_equal (Point3 2 2 2) testBox.scale        
+        sliderTime = 2
+        assert_point3_equal (Point3 30 30 30) testBox.position
+        assert_quat_equal (Quat 0.707 0.0 0.707 0.0) testBox.rotation
+        assert_point3_equal (Point3 3 3 3) testBox.scale        
+        sliderTime = 3
+        assert_point3_equal (Point3 40 40 40) testBox.position
+        assert_quat_equal (Quat 0.707 0 0 0.707) testBox.rotation
+        assert_point3_equal (Point3 4 4 4) testBox.scale
+    ),
+    
+    function rotation_controller_types_test = (
+            
+        local testBox = Box pos:[0,0,10]
+        
+        prs_test_file = (testDataDir + @"prs_controller_data.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.Reload()
+        stageObject.SetRootLayer prs_test_file
+        
+        local rotControl = USDRotationController()        
+        testBox.rotation.controller = rotControl
+          
+        rotControl.USDStage = stageObject
+        
+        rotControl.Path = "/root/Box001.rotGfQuatf"
+        assert_quat_equal (quat 0.1 0.1 0.1 0.5)  testBox.rotation
+        rotControl.Path = "/root/Box001.rotGfQuatd"
+        assert_quat_equal (quat 0.2 0.2 0.2 0.5)  testBox.rotation
+        rotControl.Path = "/root/Box001.rotGfQuath"
+        assert_quat_equal (quat 0.3 0.3 0.3 0.5)  testBox.rotation        
+    ),
+    
+    function prs_controllers_save_load = (
+        
+        local testBox = Box pos:[0,0,10]
+        
+        prs_test_file = (testDataDir + @"prs_controller_data.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.Reload()
+        stageObject.SetRootLayer prs_test_file
+        
+        local posControl = USDPositionController()        
+        testBox.position.controller = posControl
+        local rotControl = USDRotationController()        
+        testBox.rotation.controller = rotControl
+        local scaleControl = USDScaleController()        
+        testBox.scale.controller = scaleControl
+        
+        -- Control PRS with the xformable box.
+        posControl.USDStage = stageObject
+        posControl.Path = "/root/Box001"
+        rotControl.USDStage = stageObject
+        rotControl.Path = "/root/Box001"
+        scaleControl.USDStage = stageObject
+        scaleControl.Path = "/root/Box001"
+        
+        local maxSceneSavePath = output_prefix + "prs_controllers_save.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        resetMaxFile #noprompt
+        
+        -- Load the save scene, and make sure the controllers still behaves..
+        loadMaxFile maxSceneSavePath useFileUnits:true
+        
+        local savedBox = $Box001
+        
+        sliderTime = 0
+        assert_matrix_equal (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0]) savedBox.transform
+        sliderTime = 1
+        assert_matrix_equal (matrix3 [0.799188,0.344736,0] [-0.344736,0.799188,0] [0,0,0.87037] [12.963,0,0]) savedBox.transform
+        sliderTime = 2
+        assert_matrix_equal (matrix3 [0.249384,0.578136,0] [-0.578136,0.249384,0] [0,0,0.62963] [37.037,0,0]) savedBox.transform 
+        sliderTime = 3
+        assert_matrix_equal (matrix3 [0,0.5,0] [-0.5,0,0] [0,0,0.5] [50,0,0]) savedBox.transform 
+    ),
+
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        rotation_controller_types_test,
+        prs_controllers_from_xformable_test,
+        prs_controllers_from_attr_test,
+        prs_controllers_save_load
+    )
+)
+
+runUsdTestFixture usd_prs_controllers_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/usd_test_helpers.py b/src/Tests/Integration/usd_test_helpers.py
new file mode 100644
index 0000000..27d9785
--- /dev/null
+++ b/src/Tests/Integration/usd_test_helpers.py
@@ -0,0 +1,88 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from pxr import UsdShade, Usd, Sdf
+import os
+from unittest import TestCase
+from pymxs import runtime as mxs
+from pymxs import byref
+from glob import glob
+
+max_ver_info = mxs.maxversion()
+max_ver_year = max_ver_info[0] # RT.maxversion() returns an array where index 0 holds part of the build number
+BITMAP = mxs.Name("Bitmap")
+
+def get_file_path_mxs(filename):
+    _, file_path = mxs.FileResolutionManager.getFullFilePath(byref(filename), BITMAP)
+    return file_path
+
+
+def load_usd_plugins():
+    """Make sure usd plugins are loaded"""
+    mxs.pluginManager.loadClass(mxs.USDImporter)
+    mxs.pluginManager.loadClass(mxs.USDExporter)
+
+
+def standard_output_prefix(prefix, clean_up=True):
+    # type: (str, bool) -> str
+    """Setup for standard testcase: set output_prefix and cleanup previous run."""
+    tempDir = mxs.getDir(mxs.Name("temp"))
+    output_prefix = os.path.join(tempDir, prefix)
+    if clean_up:
+        # cleanup previous run
+        file_list = glob(output_prefix + "*.*")
+        for filename in file_list:
+            try:
+                os.remove(filename)
+            except:
+                Warning(f"Could not remove: {filename}")
+
+    return output_prefix
+    
+
+def test_texture_sampler_ouput(testcase, stage, texture_sampler_path, filename):
+    # type: (TestCase, Usd.Stage, Sdf.Path, str) -> None
+    """Test expected texture sampler output"""
+    prim = stage.GetPrimAtPath(texture_sampler_path)
+    testcase.assertIsNotNone(prim, msg="{0}".format(prim))
+    testcase.assertTrue(prim.IsValid(), msg="Prim path is invalid: {0}".format(texture_sampler_path))
+    
+    shader = UsdShade.Shader.Get(stage, texture_sampler_path)
+    shader_id_attr = shader.GetIdAttr()
+    shader_id = shader_id_attr.Get()
+    testcase.assertEqual(shader_id, "UsdUVTexture")
+
+    file_attr = shader.GetInput('file')
+    testcase.assertIsNotNone(file_attr)
+    
+    file_path = file_attr.Get().path
+    testcase.assertTrue(os.path.samefile(file_path, filename))
+
+def check_expected_usd_mat_value(testcase, stage, usd_mat_path, input_name, expected_val):
+    # type: (TestCase, Usd.Stage, Sdf.Path, str, object) -> None
+    """Test expected texture sampler output"""
+    msg = f"Expected {usd_mat_path}:{input_name} to be {expected_val} in {stage.GetRootLayer().realPath}"
+    usd_mat_shader = UsdShade.Shader.Get(stage, usd_mat_path)
+    testcase.assertIsInstance(usd_mat_shader, UsdShade.Shader)
+    input = usd_mat_shader.GetInput(input_name)
+    testcase.assertIsNotNone(input)
+    value = input.Get()
+
+    if isinstance(expected_val, float):
+        testcase.assertAlmostEqual(value, float(expected_val), msg=msg)
+    elif expected_val is None:
+        testcase.assertIsNone(value, msg=msg)        
+    else:
+        testcase.assertEqual(value, expected_val, msg=msg)
diff --git a/src/Tests/Integration/usd_utils_test.ms b/src/Tests/Integration/usd_utils_test.ms
new file mode 100644
index 0000000..85426f8
--- /dev/null
+++ b/src/Tests/Integration/usd_utils_test.ms
@@ -0,0 +1,61 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+struct usd_utils_test
+(
+    private
+    test_python_path,
+
+    public
+    function setup =
+    (
+        resetmaxfile #noprompt
+
+        thisFileName = getSourceFileName()
+        test_python_path = pathConfig.removePathLeaf thisFileName
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            return false
+        ) else (
+            pysys.path.insert 0 test_python_path
+        )
+    ),
+
+    function test_usd_utils =
+    (
+        utils_test = python.import("usd_utils_test")
+        results = utils_test.run_tests()
+
+        processPythonUnittestResults results
+    ),
+    function teardown = (
+        pysys = python.import("sys")
+        if pysys.path.__contains__(test_python_path) then (
+            pysys.path.remove(test_python_path)
+        )
+    ),
+
+    Tests = #(
+        test_usd_utils
+    )
+)
+
+runUsdTestFixture usd_utils_test (getThisScriptFilename())
diff --git a/src/Tests/Integration/usd_utils_test.py b/src/Tests/Integration/usd_utils_test.py
new file mode 100644
index 0000000..710abbf
--- /dev/null
+++ b/src/Tests/Integration/usd_utils_test.py
@@ -0,0 +1,75 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import usd_utils
+import sys
+import maxUsd
+import re
+
+class TestUtils(unittest.TestCase):
+    # Relative path tests
+    _start = "c:\\foo"
+    _path = "c:\\foo\\bar\\baz"
+    _expected = "bar\\baz"
+    _path_bad = "d:\\baz"
+
+    def test_normal(self):
+        rel_path = usd_utils.safe_relpath(self._path, self._start)
+        self.assertEqual(rel_path, self._expected)
+
+    def test_degenerate(self):
+        rel_path = usd_utils.safe_relpath(self._path_bad, self._start)
+        self.assertEqual(rel_path, self._path_bad)
+        
+    # Math utils
+    def test_normalize_angle(self):
+        self.assertEqual(0, usd_utils.normalize_angle(0))
+        self.assertEqual(45, usd_utils.normalize_angle(45))
+        self.assertEqual(180, usd_utils.normalize_angle(180))
+        self.assertEqual(-45, usd_utils.normalize_angle(-45))
+        self.assertEqual(180, usd_utils.normalize_angle(-180))
+        self.assertEqual(170, usd_utils.normalize_angle(-190))
+        self.assertEqual(-170, usd_utils.normalize_angle(190))
+        self.assertEqual(10, usd_utils.normalize_angle(370))
+        self.assertEqual(-10, usd_utils.normalize_angle(-370))
+        self.assertEqual(180, usd_utils.normalize_angle(540))
+        self.assertEqual(180, usd_utils.normalize_angle(-540))
+        self.assertEqual(170, usd_utils.normalize_angle(-550))
+        self.assertEqual(-170, usd_utils.normalize_angle(-530))
+        
+    def test_almost_equal(self):
+        self.assertEqual(False, usd_utils.float_almost_equal(0.0,1.0))
+        self.assertEqual(False, usd_utils.float_almost_equal(0.0,0.01))
+        self.assertEqual(False, usd_utils.float_almost_equal(0.0,0.00001))
+        self.assertEqual(False, usd_utils.float_almost_equal(0.0,0.000001))
+        self.assertEqual(False, usd_utils.float_almost_equal(1.0,-1.0))
+        
+        self.assertEqual(True, usd_utils.float_almost_equal(1.0,1.0))
+        self.assertEqual(True, usd_utils.float_almost_equal(0.0,0.0000009))
+        self.assertEqual(True, usd_utils.float_almost_equal(100.0,100.0000009))
+        self.assertEqual(True, usd_utils.float_almost_equal(-100.0,-100.000000999))
+        self.assertEqual(True, usd_utils.float_almost_equal(-100.0,-100.000000999))
+        self.assertEqual(True, usd_utils.float_almost_equal(5.000000000001, 5.000000000002))
+
+    def test_maxUsd_python_module_version_special_attribute(self):
+        self.assertEqual(True, re.match(r"\d+.\d+.\d+", maxUsd.__version__) != None)
+ 
+
+def run_tests():
+    return unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(unittest.TestLoader().loadTestsFromTestCase(TestUtils))
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/src/Tests/Integration/usd_xformable_controller_test.ms b/src/Tests/Integration/usd_xformable_controller_test.ms
new file mode 100644
index 0000000..5a0f145
--- /dev/null
+++ b/src/Tests/Integration/usd_xformable_controller_test.ms
@@ -0,0 +1,198 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+pyGf = python.import("pxr.Gf")
+
+testDataDir = (getFilenamePath (getThisScriptFilename())) + @"data\"
+
+output_prefix = pathConfig.appendPath (getDir #temp) "/USD_XFORM_CONTROLLER_TEST_"
+deleteTestFiles(output_prefix + "*.*")
+    
+struct usd_xformable_controller_test
+(  
+    private 
+    initialUnits,
+    initialScale,
+    
+    public
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        resetMaxFile #noprompt
+        units.SystemType = #inches
+        units.SystemScale = 1
+    ),
+    
+    function transform_controller_base_test = (
+        
+        local testSphere = sphere pos:[0,0,10]
+        
+        animated_box_test_file = (testDataDir + @"usd_xformable_controller.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_box_test_file
+
+        local xformControl = USDXformableController()
+                
+        testSphere.transform.controller = xformControl
+        
+        -- No prim bound yet, defaults to origin
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+                
+        local boxPrimPath = "/root/Box001"
+        
+        xformControl.USDStage = stageObject
+        xformControl.XformablePrimPath = boxPrimPath
+        
+        -- Tied to the moving box, but still at origin at frame 0.
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        
+        -- Make sure the sphere follows along.
+        sliderTime = 5
+        assert_matrix_equal testSphere.transform (matrix3 [0.793025, 0, -0.609189] [0, 1, 0] [0.609189, 0, 0.793025] [0, -20.3743, 0])
+        sliderTime = 0
+        assert_matrix_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        sliderTime = 10
+        assert_matrix_equal testSphere.transform (matrix3 [-4.37114e-8, 0, -1] [0, 1, 0] [1, 0, -4.37114e-8] [0, -48.8582, 0])
+
+        -- Test unwiring the params individually.
+        xformControl.USDStage = undefined
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        xformControl.USDStage = stageObject
+        assert_matrix_equal testSphere.transform (matrix3 [-4.37114e-8, 0, -1] [0, 1, 0] [1, 0, -4.37114e-8] [0, -48.8582, 0])
+        
+        xformControl.XformablePrimPath = ""
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        xformControl.XformablePrimPath = boxPrimPath
+        assert_matrix_equal testSphere.transform (matrix3 [-4.37114e-8, 0, -1] [0, 1, 0] [1, 0, -4.37114e-8] [0, -48.8582, 0])
+        
+        -- Test invalid values (invidually)
+        xformControl.XformablePrimPath = "foo"
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        xformControl.XformablePrimPath = boxPrimPath
+        xformControl.USDStage = Box()
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        xformControl.USDStage = stageObject
+    ),
+    
+    function transform_controller_save_load = (
+        
+        local testSphere = sphere pos:[0,0,10]
+        
+        animated_box_test_file = (testDataDir + @"usd_xformable_controller.usda")
+        
+        -- Bind to the xform of box001, and to the max scene.
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_box_test_file
+
+        local xformControl = USDXformableController()
+        testSphere.transform.controller = xformControl
+        
+        local boxPrimPath = "/root/Box001"
+        xformControl.USDStage = stageObject
+        xformControl.XformablePrimPath = boxPrimPath
+        
+        local maxSceneSavePath = output_prefix + "sphere_xform_controller.max"
+        saveMaxFile maxSceneSavePath quiet:true
+        
+        resetMaxFile #noprompt
+        
+        -- Load the save scene, and make sure the controller still behaves..
+        loadMaxFile maxSceneSavePath useFileUnits:true
+        
+        local savedSphere = $Sphere001
+        
+        sliderTime = 5
+        assert_matrix_equal savedSphere.transform (matrix3 [0.793025, 0, -0.609189] [0, 1, 0] [0.609189, 0, 0.793025] [0, -20.3743, 0])
+        sliderTime = 0
+        assert_equal savedSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        sliderTime = 10
+        assert_matrix_equal savedSphere.transform (matrix3 [-4.37114e-8, 0, -1] [0, 1, 0] [1, 0, -4.37114e-8] [0, -48.8582, 0])
+    ),
+    
+    function transform_controller_anim_offset = (
+        
+        local testSphere = sphere pos:[0,0,10]
+        animated_box_test_file = (testDataDir + @"usd_xformable_controller.usda")
+        
+        local stageObject = USDStageObject()
+        stageObject.SetRootLayer animated_box_test_file
+
+        -- Offset the animation by 10 frames.
+        stageObject.AnimationMode = 1
+        stageObject.CustomAnimationStartFrame = 10
+        
+        local xformControl = USDXformableController()
+                
+        testSphere.transform.controller = xformControl
+                
+        local boxPrimPath = "/root/Box001"
+        
+        xformControl.USDStage = stageObject
+        xformControl.XformablePrimPath = boxPrimPath
+        
+        -- Validate that the offset is taken into account...
+        sliderTime = 0
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        sliderTime = 5
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])
+        sliderTime = 10
+        assert_equal testSphere.transform (matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0])    -- new start of animation...
+        sliderTime = 15
+        assert_matrix_equal testSphere.transform (matrix3 [0.793025, 0, -0.609189] [0, 1, 0] [0.609189, 0, 0.793025] [0, -20.3743, 0])
+        sliderTime = 20
+        assert_matrix_equal testSphere.transform (matrix3 [-4.37114e-8, 0, -1] [0, 1, 0] [1, 0, -4.37114e-8] [0, -48.8582, 0])
+    ),
+    
+    function transform_controller_prevent_node_delete = (
+        local testSphere = sphere pos:[0,0,10]
+        animated_box_test_file = (testDataDir + @"usd_xformable_controller.usda")
+        
+        local aSphere = Sphere()
+        local xformControl = USDXformableController()
+        assert_false xformControl.PreventsNodeDeletion
+        
+        xformControl.PreventsNodeDeletion = true
+        aSphere.transform.controller = xformControl
+        delete aSphere
+        assert_true (IsValidNode aSphere)
+        
+        xformControl.PreventsNodeDeletion = false
+        delete aSphere
+        assert_false (IsValidNode aSphere)
+    ),    
+    
+    function teardown = (
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale
+    ),
+
+    Tests = #(
+        transform_controller_base_test,
+        transform_controller_save_load,
+        transform_controller_anim_offset,
+        transform_controller_prevent_node_delete
+    )
+)
+
+runUsdTestFixture usd_xformable_controller_test(getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/usdpreviewsurface_material_test.ms b/src/Tests/Integration/usdpreviewsurface_material_test.ms
new file mode 100644
index 0000000..d25ec26
--- /dev/null
+++ b/src/Tests/Integration/usdpreviewsurface_material_test.ms
@@ -0,0 +1,72 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+fileIn "helpers/usd_test_utils.mxs"
+
+struct usdpreviewsurface_material_test
+(
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+
+    function to_dict obj prop_names = (
+        d = Dictionary()
+        for prop_name in prop_names do (
+            local prop_val = getProperty obj prop_name
+            d[prop_name] = prop_val
+        )
+        return d
+    ),
+    
+    function assert_dict_equal d1 d2 message: = (
+        if d1.count != d2.count do (
+            return (assert_equal d1.count d2.count message:(message + " - Key count mismatch."))
+        )
+        for key in d1.keys do (
+            local kv_1 = GetDictValue d1 key
+            local kv_2 = GetDictValue d2 key
+            if kv_1 != kv_2 do ( 
+                return (assert_equal kv_1 kv_2 message:(message + " - Key: " + key as string))
+            )
+        )
+        return true
+    ),
+
+    function test_usdpreviewsurface_no_side_effects = (
+        local vps = NitrousGraphicsManager.GetActiveViewportSetting()
+        local vp_interface = getInterface vps "ViewportViewSettingImpl"
+        local vp_prop_names = getPropNames vp_interface
+        
+        local vps_before = to_dict (NitrousGraphicsManager.GetActiveViewportSetting()) vp_prop_names
+        local idisplay_before = to_dict idisplayGamma (getPropNames idisplayGamma)
+        
+        local box001 = Box pos:[0,0,0] name:"box001"
+        box001.material = MaxUsdPreviewSurface()
+        
+        local vps_after = to_dict (NitrousGraphicsManager.GetActiveViewportSetting()) vp_prop_names
+        local idisplay_after = to_dict idisplayGamma (getPropNames idisplayGamma)
+
+        assert_dict_equal vps_before vps_after message:"ViewportSetting parameter changed"
+        assert_dict_equal idisplay_before idisplay_after message:"idisplayGamma parameter changed"
+    ),
+
+    function teardown = (
+    ),
+
+    tests = #(test_usdpreviewsurface_no_side_effects)
+)
+
+runUsdTestFixture usdpreviewsurface_material_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/usdskel_viewport_test.ms b/src/Tests/Integration/usdskel_viewport_test.ms
new file mode 100644
index 0000000..eebf4f4
--- /dev/null
+++ b/src/Tests/Integration/usdskel_viewport_test.ms
@@ -0,0 +1,170 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+FileIn "helpers/usd_test_utils.mxs"
+
+pyUsd = python.import("pxr.Usd")
+pyUsdUtils = python.import("pxr.UsdUtils")
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- High level viewport playback test for UsdSkel. Use the bounding box at different 
+-- frames to make sure the meshes are computed correctly. This test was written because
+-- we missed a regression where UsdSkel started crashing on playback.
+struct usdskel_viewport_test
+(   
+    private 
+    stageObject,
+    initialAnimRange,
+    initialFrameRate,
+    initialUnits,
+    initialScale,
+    
+    public 
+    function setup =
+    (
+        initialUnits = units.SystemType
+        initialScale = units.SystemScale
+        
+        resetmaxfile #noprompt
+        
+        -- Maximize the Viewport 
+        actionMan.executeAction 0 "50026"
+
+        -- Create the stage.
+        stageObject = UsdStageObject()
+        
+        local testDataDir = getFilenamePath (getThisScriptFilename())
+        local usdSkelSamplePath = (testDataDir + @"data\usdskel_sample.usdc")
+        stageObject.SetRootLayer usdSkelSamplePath
+        stageObject.DisplayMode = 2
+            
+        -- Zoom to the extents of the stage object.
+        select stageObject
+        max zoomext sel
+        clearSelection()
+
+        -- Setup the timeconfig to match the usd content. Keep track of what was
+        -- there initially, to cleanup after ourselves.
+        local stageCache = pyUsdUtils.StageCache.Get()
+        local stage = stageCache.Find(pyUsd.StageCache.Id.FromLongInt(stageObject.cacheId))
+
+        initialAnimRange = animationRange
+        initialFrameRate = frameRate
+        stage.GetTimeCodesPerSecond()
+        frameRate  = stage.GetTimeCodesPerSecond()
+        
+        -- If no animation range defined, just run 100 frames.
+        start = (stage.GetStartTimeCode())
+        end = (stage.GetEndTimeCode())            
+        if (start == end) do end = start + 100
+                    
+        animationRange = interval start end
+    ),
+        
+    function test_usdskel_animation = (
+        -- Fix the units, so we are testing the right bounding box values.
+        units.SystemType = #Centimeters
+        units.SystemScale = 1
+        
+        local expectedMaximums = #(
+            [63.4995,32.5404,133.573],
+			[63.4565,29.2865,133.292],
+			[63.3221,25.5149,133.625],
+			[63.0976,21.2746,134.06],
+			[62.8092,16.8009,134.478],
+			[62.4641,12.1828,134.846],
+			[62.0668,8.86275,135.139],
+			[61.6331,8.86275,135.326],
+			[61.7988,8.86275,135.362],
+			[62.2769,8.86275,135.205],
+			[63.0118,8.86275,134.995],
+			[63.6768,8.86275,134.689],
+			[64.2506,8.86275,134.315],
+			[64.7131,8.86275,133.899],
+			[65.039,8.86275,133.477],
+			[65.1943,8.86275,133.187],
+			[65.1701,8.86275,133.517],
+			[64.9485,8.86275,133.955],
+			[64.5588,8.86275,134.381],
+			[64.0202,8.86275,134.763],
+			[63.3517,8.86275,135.073],
+			[62.5859,8.86275,135.281],
+			[62.3767,8.86275,135.339],
+			[62.4562,8.86275,135.205],
+			[62.788,8.86275,135.02],
+			[63.0642,8.86275,134.738],
+			[63.2806,8.86275,134.385],
+			[63.4315,8.86275,133.986],
+			[63.4995,8.86275,133.573]
+        )
+        
+        local expectedMinimums = #(
+			[-65.039,-16.5482,-4.15608],
+			[-65.1947,-19.3214,-4.50949],
+			[-65.1701,-21.5801,-4.21639],
+			[-64.9484,-23.3695,-3.74131],
+			[-64.5584,-24.9247,-3.25162],
+			[-64.0192,-26.334,-2.7922],
+			[-63.3502,-27.6464,-2.393],
+			[-62.5839,-28.9022,-2.08803],
+			[-62.3742,-33.4284,-1.92844],
+			[-62.4533,-37.9311,-1.97103],
+			[-62.7849,-42.5124,-2.27288],
+			[-63.0613,-46.9847,-2.67936],
+			[-63.2783,-51.257,-3.15057],
+			[-63.4301,-55.2275,-3.65614],
+			[-63.4995,-58.7098,-4.15608],
+			[-63.4569,-61.4831,-4.50949],
+			[-63.3221,-63.7418,-4.21639],
+			[-63.0974,-65.5312,-3.74131],
+			[-62.8087,-67.0864,-3.25162],
+			[-62.4631,-68.4957,-2.7922],
+			[-62.0653,-69.8081,-2.393],
+			[-61.631,-71.0639,-2.08803],
+			[-61.7962,-75.5901,-1.92844],
+			[-62.274,-80.0928,-1.97042],
+			[-63.0087,-84.6741,-2.27098],
+			[-63.6739,-89.1463,-2.6761],
+			[-64.2482,-93.4187,-3.14648],
+			[-64.7116,-97.3891,-3.65258],
+			[-65.039,-100.872,-4.15608]
+        )
+                
+        local currentIndex = 0
+        -- Simulate playback.
+        for t in (animationrange.start) to (animationRange.end) do;
+        (
+            slidertime = t
+            currentIndex = currentIndex + 1
+            -- Test the bounding box (min/max)
+            assert_point3_equal expectedMaximums[currentIndex] stageObject.max
+            assert_point3_equal expectedMinimums[currentIndex] stageObject.min
+        )
+        
+    ),
+    
+    function teardown = (
+        frameRate  = initialFrameRate
+        animationRange = initialAnimRange
+        units.SystemType = initialUnits
+        units.SystemScale = initialScale        
+    ),
+
+    Tests = #(test_usdskel_animation)
+)
+
+runUsdTestFixture usdskel_viewport_test (getThisScriptFilename())
\ No newline at end of file
diff --git a/src/Tests/Integration/viewport_performance_test.ms b/src/Tests/Integration/viewport_performance_test.ms
new file mode 100644
index 0000000..676fd97
--- /dev/null
+++ b/src/Tests/Integration/viewport_performance_test.ms
@@ -0,0 +1,63 @@
+--
+-- Copyright 2023 Autodesk
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+/* ********************************************************************************************************
+    @param Desc             : Set offline, we do not run the viewport performance tests from the pipeline.
+    @param Status           : Offline
+******************************************************************************************************** */
+
+TEST_DATA_DIR = @"{folder with usd files to profile}"
+
+FileIn "helpers/usd_test_utils.mxs"
+FileIn "helpers/fps_profiler.mxs"
+
+-- Make sure the USD plugin is properly loaded.
+setupUsdPlugins()
+
+-- Profiles the viewport performance of USD animations defined in the layers found in TEST_DATA_DIR.
+struct viewport_performance_test
+(  
+    private 
+    testDataDir = TEST_DATA_DIR,
+    
+    public 
+    function setup =
+    (
+        resetmaxfile #noprompt
+    ),
+        
+    function test_viewport_performance = (
+        local files = #()
+
+        join files (sort (getFiles (testDataDir + "*.usd*")))
+            
+        if (files.count == 0) then (
+            print "Found no USD layers to profile."
+        )    
+        else (
+            for usdLayer in files do 
+            (
+                profile_viewport_performance usdLayer
+            )
+        )
+    ),
+    
+    function teardown = (
+    ),
+
+    Tests = #(test_viewport_performance)
+)
+
+runUsdTestFixture viewport_performance_test (getThisScriptFilename())
diff --git a/src/Tests/System/MaxIntegrationTestListener.cpp b/src/Tests/System/MaxIntegrationTestListener.cpp
new file mode 100644
index 0000000..310ea22
--- /dev/null
+++ b/src/Tests/System/MaxIntegrationTestListener.cpp
@@ -0,0 +1,105 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxIntegrationTestListener.h"
+#include <sstream>
+#include <algorithm>
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/Logging.h>
+
+#define ScriptPrint (the_listener->edit_stream->printf)
+
+MaxIntegrationTestListener::MaxIntegrationTestListener()
+{
+}
+
+MaxIntegrationTestListener::~MaxIntegrationTestListener()
+{
+}
+
+void MaxIntegrationTestListener::OnTestStart(const testing::TestInfo& test_info)
+{
+	std::stringstream ss;
+	ss << "Running test ";
+	ss << test_info.test_case_name();
+	ss << ".";
+	ss << test_info.name();
+	ss << "...\n";
+	ScriptPrint(MaxUsd::UsdStringToMaxString(ss.str()).data());
+}
+
+void MaxIntegrationTestListener::OnTestEnd(const testing::TestInfo& test_info)
+{
+	std::wstring resultMessage;
+	bool failed = test_info.result()->Failed();
+	std::wstring msg{};
+	if (failed)
+	{
+		std::stringstream ss;
+		for (int i = 0; i < test_info.result()->total_part_count(); ++i)
+		{
+			ss << "\n";
+			const auto& part = test_info.result()->GetTestPartResult(i);
+			std::string summary = part.summary();
+			std::string fileName = (part.file_name() ? std::string(part.file_name()) : "");
+			std::replace(fileName.begin(), fileName.end(), '\\', '/');
+			ss << fileName << "(" << part.line_number() << "): error: " << summary << "\n";
+		}
+		msg.append(std::wstring(L"\"") + std::wstring(MaxUsd::UsdStringToMaxString(ss.str()).data()) + std::wstring(L"\""));
+		ScriptPrint(L"FAILED.\n");
+	}
+	MaxAssertTrue(!failed, msg.c_str());
+}
+
+// Abstract methods from test::TestEventListener.
+void MaxIntegrationTestListener::OnTestProgramStart(const testing::UnitTest& unit_test){}
+void MaxIntegrationTestListener::OnTestIterationStart(const testing::UnitTest& unit_test, int iteration){}
+void MaxIntegrationTestListener::OnEnvironmentsSetUpStart(const testing::UnitTest& unit_test){}
+void MaxIntegrationTestListener::OnEnvironmentsSetUpEnd(const testing::UnitTest& unit_test){}
+void MaxIntegrationTestListener::OnTestCaseStart(const testing::TestCase& test_case){}
+void MaxIntegrationTestListener::OnTestPartResult(const testing::TestPartResult& result){}
+void MaxIntegrationTestListener::OnTestCaseEnd(const testing::TestCase& test_case){}
+void MaxIntegrationTestListener::OnEnvironmentsTearDownStart(const testing::UnitTest& unit_test){}
+void MaxIntegrationTestListener::OnEnvironmentsTearDownEnd(const testing::UnitTest& unit_test){}
+void MaxIntegrationTestListener::OnTestIterationEnd(const testing::UnitTest& unit_test, int iteration){}
+void MaxIntegrationTestListener::OnTestProgramEnd(const testing::UnitTest& unit_test){}
+
+// Calls the assert_true function from the AssertReporter module.
+void MaxIntegrationTestListener::MaxAssertTrue(bool val, const TCHAR* msg)
+{
+	static value_cf assert_true_fn = nullptr;  // Acquire pointer to function once.
+	if (assert_true_fn == nullptr)
+	{
+		assert_true_fn = ((Primitive*)globals->get(Name::intern(_T("assert_true")))->eval())->fn_ptr;
+	}
+	ScopedMaxScriptEvaluationContext scopedMaxScriptEvaluationContext;  // Set up maxscript thread locals.
+	MAXScript_TLS* _tls = scopedMaxScriptEvaluationContext.Get_TLS(); // Get thread local storage.
+	Value** arg_list;
+	value_local_array_tls(arg_list, 4); // Create a local array of list of args, protects them from gc.
+	int argCount = 1;
+	arg_list[0] = val ? &true_value : &false_value; // The value to test.
+	if (msg)
+	{ 
+		argCount = 4;
+		arg_list[1] = &keyarg_marker; // Marks beginning of keyword args.
+		arg_list[2] = n_message; // Keyword name.
+		arg_list[3] = new String(msg); // Keyword value.
+	}
+	(*assert_true_fn)(arg_list, argCount); // Make the call!
+}
\ No newline at end of file
diff --git a/src/Tests/System/MaxIntegrationTestListener.h b/src/Tests/System/MaxIntegrationTestListener.h
new file mode 100644
index 0000000..09caedd
--- /dev/null
+++ b/src/Tests/System/MaxIntegrationTestListener.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <gtest/gtest.h>
+
+class MaxIntegrationTestListener : public testing::TestEventListener
+{
+public:
+    MaxIntegrationTestListener();
+    virtual ~MaxIntegrationTestListener();
+
+    virtual void OnTestProgramStart(const testing::UnitTest& unit_test);
+    virtual void OnTestIterationStart(const testing::UnitTest& unit_test, int iteration);
+    virtual void OnEnvironmentsSetUpStart(const testing::UnitTest& unit_test);
+    virtual void OnEnvironmentsSetUpEnd(const testing::UnitTest& unit_test);
+    virtual void OnTestCaseStart(const testing::TestCase& test_case);
+    virtual void OnTestStart(const testing::TestInfo& test_info);
+    virtual void OnTestPartResult(const testing::TestPartResult& result);
+    virtual void OnTestEnd(const testing::TestInfo& test_info);
+    virtual void OnTestCaseEnd(const testing::TestCase& test_case);
+    virtual void OnEnvironmentsTearDownStart(const testing::UnitTest& unit_test);
+    virtual void OnEnvironmentsTearDownEnd(const testing::UnitTest& unit_test);
+    virtual void OnTestIterationEnd(const testing::UnitTest& unit_test, int iteration);
+    virtual void OnTestProgramEnd(const testing::UnitTest& unit_test);
+
+protected:
+    void MaxAssertTrue(bool val, const TCHAR* msg);
+};
\ No newline at end of file
diff --git a/src/Tests/System/MaxScriptInterface.cpp b/src/Tests/System/MaxScriptInterface.cpp
new file mode 100644
index 0000000..d4fb134
--- /dev/null
+++ b/src/Tests/System/MaxScriptInterface.cpp
@@ -0,0 +1,75 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxIntegrationTestListener.h"
+#include "TestGUP.h"
+
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#include <Max.h>
+#include <gtest/gtest.h>
+
+// Simple Maxscript interface to allow running the tests from Maxscript.
+class MaxScriptInterface : public FPStaticInterface
+{
+public:
+    enum
+    {
+        fnIdRunTests
+    };
+
+    void RunTests();
+
+    DECLARE_DESCRIPTOR_INIT(MaxScriptInterface)
+    BEGIN_FUNCTION_MAP
+    VFN_0(fnIdRunTests, RunTests)
+    END_FUNCTION_MAP
+};
+
+const Interface_ID FP_MAXSCRIPT_INTERFACE(0x67001746, 0x4ff4055f);
+
+static MaxScriptInterface fpMaxScriptInterface(
+    FP_MAXSCRIPT_INTERFACE,
+    GetTestGUPDesc()->InternalName(),
+    0,
+    GetTestGUPDesc(),
+    0,
+    MaxScriptInterface::fnIdRunTests,
+    _T("RunTests"),
+    0,
+    TYPE_VOID,
+    0,
+    0,
+    p_end);
+
+void MaxScriptInterface::init()
+{
+    // Register a listener, which will collect test errors and report them
+    // via the MxsUnitReporter.
+    auto& listeners = testing::UnitTest::GetInstance()->listeners();
+    listeners.Append(new MaxIntegrationTestListener());
+}
+
+void MaxScriptInterface::RunTests()
+{
+    // Setup GTEST arguments so that all found tests are executed.
+    std::vector<char*> argv;
+    argv.push_back(const_cast<char*>("--gtest_filter=*"));
+    int argc = static_cast<int>(argv.size());
+
+    ::testing::InitGoogleTest(&argc, argv.data());
+    auto result = RUN_ALL_TESTS();
+}
diff --git a/src/Tests/System/MaxUsdObjects.Camera.test.cpp b/src/Tests/System/MaxUsdObjects.Camera.test.cpp
new file mode 100644
index 0000000..7879c12
--- /dev/null
+++ b/src/Tests/System/MaxUsdObjects.Camera.test.cpp
@@ -0,0 +1,138 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "TestHelpers.h"
+
+#include <MaxUsdObjects/MaxUsdUfe/UfeUtils.h>
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+#include <MaxUsdObjects/Objects/UsdCameraObject.h>
+
+#include <RenderDelegate/HdMaxEngine.h>
+#include <RenderDelegate/SelectionRenderItem.h>
+
+#include <MaxUsd/Utilities/ScopeGuard.h>
+
+#include <ufe/hierarchy.h>
+
+// The FOV approximation is wildly imprecise VS floating-point imprecision.
+constexpr float FOV_EPSILON = 0.005f;
+
+// Internally, the camera translation code we use on import, is also used for the internal
+// 3dsMax physical camera that the USDCameraObject maintains. The conversion code itself is
+// tested in details in camera i/o tests. Here, we just make sure that the time code is wired
+// up correctly. Not that it is not possible to do this from maxscript, as the generic camera
+// interface, is not exposed.
+TEST(USDCamera, TranslateAtTime)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("animated_camera.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->GetParamBlock(0)->SetValueByName(L"AnimationMode", 0, 0);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    // By default, the usd cameras are generated.
+    const auto cameraNode = GetCOREInterface()->GetINodeByName(L"PhysCamera001");
+    ASSERT_NE(cameraNode, nullptr);
+
+    const auto usdCamera = dynamic_cast<USDCameraObject*>(cameraNode->GetObjectRef());
+    ASSERT_NE(usdCamera, nullptr);
+
+    constexpr float expected1 = 0.839f;
+    constexpr float expected2 = 0.804f;
+    constexpr float expected3 = 0.730f;
+    constexpr float expected4 = 0.642f;
+
+    Interval   interval = FOREVER;
+    const auto fovAt0 = usdCamera->GetFOV(0 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt0, expected1, FOV_EPSILON);
+
+    const auto fovAt10 = usdCamera->GetFOV(10 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt10, expected2, FOV_EPSILON);
+
+    const auto fovAt20 = usdCamera->GetFOV(20 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt20, expected3, FOV_EPSILON);
+
+    const auto fovAt30 = usdCamera->GetFOV(30 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt30, expected4, FOV_EPSILON);
+
+    // Offset the animation by 10 seconds.
+    stageObject->GetParamBlock(0)->SetValueByName(L"AnimationMode", 1, 0);
+    stageObject->GetParamBlock(0)->SetValueByName(L"CustomAnimationStartFrame", 10.f, 0);
+
+    const auto fovAt0Offset = usdCamera->GetFOV(0 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt0Offset, expected1, FOV_EPSILON);
+
+    const auto fovAt10Offset = usdCamera->GetFOV(10 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(
+        fovAt10Offset, expected1, FOV_EPSILON); // Same value as above, anim start is offset by 10.
+
+    const auto fovAt20Offset = usdCamera->GetFOV(20 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt20Offset, expected2, FOV_EPSILON);
+
+    const auto fovAt30Offset = usdCamera->GetFOV(30 * GetTicksPerFrame(), interval);
+    EXPECT_NEAR(fovAt30Offset, expected3, FOV_EPSILON);
+}
+
+TEST(USDCamera, AttributeEdit)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("animated_camera.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    const auto cameraNode = GetCOREInterface()->GetINodeByName(L"PhysCamera001");
+    ASSERT_NE(cameraNode, nullptr);
+
+    const auto maxUsdCamera = dynamic_cast<USDCameraObject*>(cameraNode->GetObjectRef());
+    ASSERT_NE(maxUsdCamera, nullptr);
+
+    auto usdCam = maxUsdCamera->GetUsdCamera();
+
+    constexpr float expected1 = 0.839f;
+    Interval        interval = FOREVER;
+    const auto      val1 = maxUsdCamera->GetFOV(0, interval);
+    EXPECT_NEAR(val1, expected1, FOV_EPSILON);
+
+    auto stage = usdCam.GetPrim().GetStage();
+    stage->SetEditTarget(stage->GetSessionLayer());
+
+    // Change the value on the session layer. First edit on another layer,
+    // causes a resync of the camera path as there is now composition.
+    usdCam.GetFocalLengthAttr().Set(54.114174f);
+
+    constexpr float expected2 = 0.642f;
+    const auto      val2 = maxUsdCamera->GetFOV(0, interval);
+    EXPECT_NEAR(val2, expected2, FOV_EPSILON);
+
+    // Change it again, now attribute only changed.
+    usdCam.GetFocalLengthAttr().Set(47.072845f);
+
+    constexpr float expected3 = 0.730f;
+    const auto      val3 = maxUsdCamera->GetFOV(0, interval);
+    EXPECT_NEAR(val3, expected3, FOV_EPSILON);
+}
diff --git a/src/Tests/System/MaxUsdObjects.SelectionBuffer.test.cpp b/src/Tests/System/MaxUsdObjects.SelectionBuffer.test.cpp
new file mode 100644
index 0000000..531ee3e
--- /dev/null
+++ b/src/Tests/System/MaxUsdObjects.SelectionBuffer.test.cpp
@@ -0,0 +1,827 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "TestHelpers.h"
+
+#include <MaxUsdObjects/MaxUsdUfe/UfeUtils.h>
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <RenderDelegate/HdMaxEngine.h>
+#include <RenderDelegate/SelectionRenderItem.h>
+
+#include <MaxUsd/Utilities/ScopeGuard.h>
+
+#include <pxr/usd/usdGeom/cone.h>
+
+#include <ufe/globalSelection.h>
+#include <ufe/hierarchy.h>
+#include <ufe/observableSelection.h>
+
+// Utility function to test a render item's selection buffer state, fully selected or not (all ones
+// or zeros)
+void TestSelectionBufferState(
+    const MaxSDK::Graphics::RenderItemHandle& renderItem,
+    bool                                      selected,
+    bool                                      decorated = true)
+{
+    const auto geom = GetRenderItemGeometry(renderItem, decorated, selected);
+    auto       selBuffer = geom->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+    const auto selData
+        = reinterpret_cast<Point3*>(selBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    // While unselected, the selection buffer is expected to be all zeros, when selected, ones.
+    auto expected = selected ? Point3(1.f, 1.f, 1.f) : Point3 {};
+
+    EXPECT_TRUE(std::all_of(
+        selData, selData + selBuffer.GetNumberOfVertices(), [&expected](const Point3& p) {
+            return p.Equals(expected);
+        }));
+
+    selBuffer.Unlock();
+};
+
+// Testing basic selection display, looking at the selection buffer.
+// Making sure that when something is selected, the buffer is filled with ones.
+// Also test display behavior in and out of the prim sub-object mode.
+TEST(SelectionBuffer, SelectDisplay)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_geometry.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+    // The scene is composed of a single box.
+
+    // Render, nothing is selected.
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false);
+
+    // Select the box.
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    auto           ufeItem = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Box001")));
+    newSelection.append(ufeItem);
+    globalUfeSel->replaceWith(newSelection);
+
+    // Render, the box is now selected - but we are not in the prim sub object mode, so
+    // the selection should not be displayed.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false);
+
+    // Switch to Prim sub-object mode -> now showing selection.
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    TestSelectionBufferState(renderItems.GetRenderItem(0), true);
+
+    // Switch back to object level -> no longer display selection.
+    GetCOREInterface()->SetSubObjectLevel(0);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false);
+
+    // Toggle back to sub-object -> display selection again...
+    GetCOREInterface()->SetSubObjectLevel(1);
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    TestSelectionBufferState(renderItems.GetRenderItem(0), true);
+
+    // Clear the UFE selection -> selection is cleared in the buffer.
+    globalUfeSel->replaceWith({});
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false);
+}
+
+// Testing selection within a consolidated mesh (selected prims will have corresponding parts of the
+// selection buffer filled with ones).
+TEST(SelectionBuffer, ConsolidatedMeshSelection)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_consolidated_geometry.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    // The scene is composed a box and a sphere.
+
+    // Setup consolidation. Use a static delay of 0 so that consolidation happens immediately.
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+    consolidationConfig.maxCellSize = 200000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Single render item, as everything is consolidated.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false, false);
+
+    // Select the sphere and switch to prim sub-object.
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    const auto     ufeItem = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Sphere001")));
+    newSelection.append(ufeItem);
+    globalUfeSel->replaceWith(newSelection);
+
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    const auto renderItem = renderItems.GetRenderItem(0);
+
+    const auto geom = GetRenderItemGeometry(renderItem, false, true);
+    auto       selBuffer = geom->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+    const auto selData
+        = reinterpret_cast<Point3*>(selBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    // First 24 verts are those of the box, unselected.
+    EXPECT_TRUE(
+        std::all_of(selData, selData + 24, [](const Point3& p) { return p.Equals(Point3 {}); }));
+    // The rest belong to the sphere, selected.
+    EXPECT_TRUE(
+        std::all_of(selData + 24, selData + selBuffer.GetNumberOfVertices(), [](const Point3& p) {
+            return p.Equals(Point3 { 1.f, 1.f, 1.f });
+        }));
+
+    selBuffer.Unlock();
+
+    // Clear the UFE selection -> selection is cleared in the buffer.
+    globalUfeSel->replaceWith({});
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false, false);
+}
+
+// Testing selection within a consolidated mesh built from instances.
+TEST(SelectionBuffer, ConsolidatedInstancedGeometry)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_instanced_geometry.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    // The scene is composed a 3 instanced boxes, with the following consolidation settings, they
+    // will all be consolidated.
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+    consolidationConfig.maxCellSize = 200000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Single render item, as everything is consolidated.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false, false);
+
+    // Select the 2nd box and switch to prim sub-object.
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    const auto     ufeItem = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Box002")));
+    newSelection.append(ufeItem);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->UpdatePrimSelectionDisplay();
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    const auto renderItem = renderItems.GetRenderItem(0);
+
+    const auto geom = GetRenderItemGeometry(renderItem, false, true);
+    auto       selBuffer = geom->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+    const auto selData
+        = reinterpret_cast<Point3*>(selBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    // First 24 verts are those of the first box, unselected.
+    EXPECT_TRUE(
+        std::all_of(selData, selData + 24, [](const Point3& p) { return p.Equals(Point3 {}); }));
+    // The next 24 verts are those of the second box, selected
+    EXPECT_TRUE(std::all_of(selData + 24, selData + 48, [](const Point3& p) {
+        return p.Equals(Point3 { 1.f, 1.f, 1.f });
+    }));
+    // The rest is the last box, unselected
+    EXPECT_TRUE(
+        std::all_of(selData + 48, selData + selBuffer.GetNumberOfVertices(), [](const Point3& p) {
+            return p.Equals(Point3 {});
+        }));
+
+    selBuffer.Unlock();
+
+    // Clear the UFE selection -> selection is cleared in the buffer.
+    globalUfeSel->replaceWith({});
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false, false);
+}
+
+// Testing selection of instances.
+TEST(SelectionBuffer, InstancedGeometry)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_instanced_geometry.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    // The scene is composed a 3 instanced boxes
+
+    // Disable consolidation explicitly to make sure instancing is used.
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Off;
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Single instanced render item carrying all 3 instances.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    // Select the 2nd box and switch to prim sub-object.
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    const auto     ufeItemBBox002 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Box002")));
+    newSelection.append(ufeItemBBox002);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->UpdatePrimSelectionDisplay();
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Instance selection display is implemented using a different instance render item. So we now
+    // expect 2 items.
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    // Selecting another box doesn't add a new render item, both selected boxes will display
+    // their selection from the same same instance render item.
+    const auto ufeItemBBox003 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Box003")));
+
+    newSelection.append(ufeItemBBox003);
+    globalUfeSel->replaceWith(newSelection);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    // Clear the UFE selection -> back to a single instancing render item.
+    globalUfeSel->replaceWith({});
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+}
+
+// Testing that selecting a parent prim displays children as selected.
+TEST(SelectionBuffer, SelectHierarchy)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_hierarchy.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+    // The scene is a hierarchy of boxes like so :
+    // /root (Xform)
+    //   /Box001 (Xform)
+    //     /Box001_Shape (Mesh)
+    //     /Box002 (Mesh)
+    //     /Box003 (Xform)
+    //        /Box003_Shape (Mesh)
+    //        /Box004 (Mesh)
+
+    // There are 4 meshes, this will result in 4 render items (consolidation not being used).
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), false);
+    }
+
+    // Select the root prim.
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    const auto     rootItem = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root")));
+    newSelection.append(rootItem);
+    globalUfeSel->replaceWith(newSelection);
+
+    // Switch to Prim sub-object mode -> now everything should show selected.
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), true);
+    }
+
+    // Clear the UFE selection -> selection is cleared in the buffer.
+    globalUfeSel->replaceWith({});
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), false);
+    }
+
+    // Now test with a sub-tree. Selecting Box003 should also display selection for it child, Box004
+    newSelection.clear();
+    newSelection.append(Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath("/root/Box001/Box003"))));
+    globalUfeSel->replaceWith(newSelection);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        // Box003 and Box004 are at the last 2 indices.
+        TestSelectionBufferState(renderItems.GetRenderItem(i), i > 1);
+    }
+}
+
+// Testing that prims added or removed from view are correctly handled.
+TEST(SelectionBuffer, SelectedPrimAddRemove)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_hierarchy.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+    // The scene is a hierarchy of boxes like so :
+    // /root (Xform)
+    //   /Box001 (Xform)
+    //     /Box001_Shape (Mesh)
+    //     /Box002 (Mesh)
+    //     /Box003 (Xform)
+    //        /Box003_Shape (Mesh)
+    //        /Box004 (Mesh)
+
+    // There are 4 meshes, this will result in 4 render items (consolidation not being used).
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), false);
+    }
+
+    // Switch to Prim sub-object mode so that selection is displayed.
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    // Deactivate the subtree under Box003
+    const auto box3Path = pxr::SdfPath("/root/Box001/Box003");
+
+    auto box3 = stageObject->GetUSDStage()->GetPrimAtPath(box3Path);
+    box3.SetActive(false);
+
+    // Select box 3 and render.
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(
+        Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box3Path)));
+    globalUfeSel->replaceWith(newSelection);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    // Box3 being inactive, we only have 2 render items.
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 2; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), false);
+    }
+
+    // Reactivate box3, and render again, should show selected.
+    box3.SetActive(true);
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull });
+
+    // Back to 4 render item, Box003 and Box004 are selected even if selection was
+    // done while they were inactive.
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 4; ++i) {
+        TestSelectionBufferState(renderItems.GetRenderItem(i), i > 1);
+    }
+}
+
+// Testing that the selection display handles internal instance indices change correctly
+TEST(SelectionBuffer, InstancesIndexChange)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("selection_instanced_geometry.usda");
+    const auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+    const auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    // The scene is composed a 3 instanced boxes, with the following consolidation settings, they
+    // will all be consolidated. The idea is to toggle the second box, this will change the instance
+    // index of the third box, and we look at the consolidated instances to know if all went well.
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+    consolidationConfig.maxCellSize = 200000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    // Render, nothing is selected.
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Single render item, as everything is consolidated.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    TestSelectionBufferState(renderItems.GetRenderItem(0), false, false);
+
+    // Select the first and last boxes and switch to prim sub-object.
+
+    const auto box1Path = pxr::SdfPath("/root/Box001");
+    const auto box3Path = pxr::SdfPath("/root/Box003");
+
+    const auto&    globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(
+        Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box1Path)));
+    newSelection.append(
+        Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box3Path)));
+    globalUfeSel->replaceWith(newSelection);
+
+    GetCOREInterface()->SelectNode(node);
+    GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+    GetCOREInterface()->SetSubObjectLevel(1);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    auto geom = GetRenderItemGeometry(renderItems.GetRenderItem(0), false, true);
+    auto selBuffer = geom->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+    auto selData = reinterpret_cast<Point3*>(selBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    // First 24 verts are those of the first box, selected
+    EXPECT_TRUE(std::all_of(
+        selData, selData + 24, [](const Point3& p) { return p.Equals(Point3 { 1.f, 1.f, 1.f }); }));
+    // The next 24 verts are those of the second box, unselected
+    EXPECT_TRUE(std::all_of(
+        selData + 24, selData + 48, [](const Point3& p) { return p.Equals(Point3 {}); }));
+    // The rest is the last box, selected
+    EXPECT_TRUE(
+        std::all_of(selData + 48, selData + selBuffer.GetNumberOfVertices(), [](const Point3& p) {
+            return p.Equals(Point3 { 1.f, 1.f, 1.f });
+        }));
+
+    selBuffer.Unlock();
+
+    const auto stage = stageObject->GetUSDStage();
+    auto       box2 = stage->GetPrimAtPath(pxr::SdfPath("/root/Box002"));
+    box2.SetActive(false);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Box002 was the only unselected box, now all should be selected.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    TestSelectionBufferState(renderItems.GetRenderItem(0), true, false);
+
+    // Reactivate the box002 instance and deactivate box001
+    box2.SetActive(true);
+    auto box1 = stage->GetPrimAtPath(box1Path);
+    box1.SetActive(false);
+
+    stageObject->UpdatePrimSelectionDisplay();
+    TestRender(
+        stageObject->GetUSDStage(),
+        *(stageObject->GetHydraEngine()),
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    geom = GetRenderItemGeometry(renderItems.GetRenderItem(0), false, true);
+    selBuffer = geom->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+    selData = reinterpret_cast<Point3*>(selBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    // First 24 verts are those of box002, still unselected
+    EXPECT_TRUE(
+        std::all_of(selData, selData + 24, [](const Point3& p) { return p.Equals(Point3 {}); }));
+    // The rest is box3, selected.
+    EXPECT_TRUE(
+        std::all_of(selData + 24, selData + selBuffer.GetNumberOfVertices(), [](const Point3& p) {
+            return p.Equals(Point3 { 1.f, 1.f, 1.f });
+        }));
+}
\ No newline at end of file
diff --git a/src/Tests/System/MaxUsdObjects.SubobjectTransforms.test.cpp b/src/Tests/System/MaxUsdObjects.SubobjectTransforms.test.cpp
new file mode 100644
index 0000000..7959137
--- /dev/null
+++ b/src/Tests/System/MaxUsdObjects.SubobjectTransforms.test.cpp
@@ -0,0 +1,1447 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "TestHelpers.h"
+
+#include <MaxUsdObjects/MaxUsdUfe/UfeUtils.h>
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <RenderDelegate/HdMaxEngine.h>
+#include <RenderDelegate/SelectionRenderItem.h>
+
+#include <MaxUsd/Utilities/ScopeGuard.h>
+
+#include <pxr/usd/usdGeom/cone.h>
+#include <pxr/usd/usdGeom/metrics.h>
+
+#include <maxscript/maxscript.h>
+#include <ufe/globalSelection.h>
+#include <ufe/hierarchy.h>
+#include <ufe/observableSelection.h>
+
+// Base class for testing prim subobject transform in the stage object. The focus is on the final
+// position of the prim, not the xformOp setup. Simulates call order of subobject transform methods
+// from 3dsmax. The test scene is designed to cover all alot of scenarios, it is a hierarchy of 3
+// boxes, each level has translation, rotation and scaling applied.
+class SubObjectTransformTest : public ::testing::Test
+{
+public:
+    void SetUp() override
+    {
+        // Keep track of current units so we can set them back properly. Just making sure we always
+        // run the test with the same units.
+        GetSystemUnitInfo(&unitType, &unitScale);
+        SetSystemUnitInfo(UNITS_INCHES, 1.0f);
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath = testDataPath.append("subobject_transform.usda");
+        stageObject = static_cast<USDStageObject*>(
+            GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+        node = GetCOREInterface()->CreateObjectNode(stageObject);
+        stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+        // Select the leaf box (combines transforms from the 2 ancestor boxes and its own).
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+
+        primPath = pxr::SdfPath("/root/Box001/Box002/Box003");
+
+        auto ufeItem
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath));
+        newSelection.append(ufeItem);
+        globalUfeSel->replaceWith(newSelection);
+
+        // Give a transform to the node, with some translate and rotation, to make the tests
+        // interesting (the rotation of the node in space matters when figuring out how to move
+        // things later, along the right axis).
+        Matrix3 nodeTm;
+        nodeTm.SetRow(0, { 0.f, 0.f, -1.f });
+        nodeTm.SetRow(1, { 0.f, 1.f, 0.f });
+        nodeTm.SetRow(2, { 1.f, 0.f, 0.f });
+        nodeTm.SetRow(3, { 39.3701f, 0.f, 0.f });
+        node->SetNodeTM(0, nodeTm);
+
+        // Switch to Prim sub-object mode.
+        GetCOREInterface()->SelectNode(node);
+        GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+        GetCOREInterface()->SetSubObjectLevel(1);
+
+        // If currently holding, stop. The SubObjectTransformTest tests call undo and we only
+        // want to undo the transform changes.
+        if (theHold.Holding()) {
+            theHold.Accept(L"Test setup");
+        }
+    }
+    void TearDown() override
+    {
+        GetCOREInterface()->FileReset(TRUE);
+        SetSystemUnitInfo(unitType, unitScale);
+    }
+    int   unitType;
+    float unitScale;
+
+    pxr::SdfPath    primPath;
+    INode*          node;
+    USDStageObject* stageObject;
+};
+
+TEST_F(SubObjectTransformTest, Move)
+{
+    // Simulate a sub-object move operation initiated from the UI. The default coord system will
+    // make it move in world space, so we compare the start/end world space transforms and expect
+    // they will differ by the translation we will perform.
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    EXPECT_TRUE(primPreTransform.GetTrans().Equals(
+        { 66.0295792f, 18.3343010f, -26.6595020f }, MAX_FLOAT_EPSILON));
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate(primPreTransform.GetTrans());
+
+    Point3 translation = { 0.f, 0.f, 10.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    // Verify that the prim indeed moved 10 units in the 3dsMax scene's space.
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+
+    Matrix3 expected;
+    expected.SetTranslate(translation);
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+
+    // Test undoing the translation.
+    ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+    const auto transformAfterUndo
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    EXPECT_TRUE(primPreTransform.Equals(transformAfterUndo, MAX_FLOAT_EPSILON));
+}
+
+TEST_F(SubObjectTransformTest, Rotate)
+{
+    // Simulate a sub-object rotate operation initiated from the UI.The default coord system will
+    // make it rotate around the max scene's axises. So we compare the start/end world space
+    // transforms.
+
+    const TimeValue time = 0;
+
+    stageObject->TransformStart(time);
+
+    const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate(primPreTransform.GetTrans());
+
+    Quat    rotation;
+    AngAxis angAxis;
+    angAxis.Set(1.f, 0.0f, 0.f, 1.5708f); // 90 degree rotation around X.
+    rotation.Set(angAxis);
+
+    auto parentTm = node->GetNodeTM(time);
+
+    stageObject->Rotate(time, parentTm, tmAxis, rotation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    // Verify that the prim indeed moved 10 units in the 3dsMax scene's space.
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+
+    Matrix3 rotationMatrix;
+    rotation.MakeMatrix(rotationMatrix);
+    auto invTmAxis = tmAxis;
+    invTmAxis.Invert();
+
+    const Matrix3 expected = invTmAxis * rotationMatrix * tmAxis;
+
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+
+    // Test undoing the rotation.
+    ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+    const auto transformAfterUndo
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    EXPECT_TRUE(primPreTransform.Equals(transformAfterUndo, MAX_FLOAT_EPSILON));
+}
+
+// Test scale operation
+TEST_F(SubObjectTransformTest, Scale)
+{
+    // Simulate a sub-object rotate operation initiated from the UI.The default coord system will
+    // make it scale around the max scene's axises. So we compare the start/end world space
+    // transforms.
+
+    const TimeValue time = 0;
+
+    stageObject->TransformStart(time);
+
+    const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate(primPreTransform.GetTrans());
+
+    Point3 scale { 5.f, 5.f, 5.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Scale(time, parentTm, tmAxis, scale, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    // Verify the scaling that was applied.
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+    Matrix3    scaleMatrix;
+    scaleMatrix.SetScale(scale);
+    auto invTmAxis = tmAxis;
+    invTmAxis.Invert();
+    const Matrix3 expected = invTmAxis * scaleMatrix * tmAxis;
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+
+    // Test undoing the scaling.
+    ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+    const auto transformAfterUndo
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    EXPECT_TRUE(primPreTransform.Equals(transformAfterUndo, MAX_FLOAT_EPSILON));
+}
+
+// Test that different units between max and stage are accounted for when transforming prims.
+TEST_F(SubObjectTransformTest, TransformUnits)
+{
+    // Our test file is in inches (metersPerUnit = 0.0254) and Z up.
+    // We will temporarily change that programatically and observe the effect when moving a prim.
+    auto       stage = stageObject->GetUSDStage();
+    double     currentMeterPerUnit;
+    const auto resetStageUnits = MaxUsd::MakeScopeGuard(
+        [stage, &currentMeterPerUnit]() {
+            currentMeterPerUnit = pxr::UsdGeomGetStageMetersPerUnit(stage);
+        },
+        [stage, &currentMeterPerUnit]() {
+            pxr::UsdGeomSetStageMetersPerUnit(stage, currentMeterPerUnit);
+        });
+
+    // Test centimeters as stage units
+    pxr::UsdGeomSetStageMetersPerUnit(stage, 0.01);
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    auto       prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    Matrix3    tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate({ 66.0295792f, 18.3343010f, -26.6595020f });
+    // Moving 10 inches.
+    Point3 translation = { 0.f, 0.f, 10.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    // Verify that the prim indeed moved 10 units in the 3dsMax scene's space.
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+
+    Matrix3 expected;
+    expected.SetTranslate(
+        translation); // Should move 10 units in 3dsMax, whatever the units in the stage.
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+}
+
+// Test that different up-axises between max and stage are accounted for when transforming prims.
+TEST_F(SubObjectTransformTest, TransformUpAxis)
+{
+    // Our test file is in inches (metersPerUnit = 0.0254) and Z up.
+    // We will temporarily change that programatically and observe the effect when moving a prim.
+    auto         stage = stageObject->GetUSDStage();
+    pxr::TfToken currentUpAxis;
+    const auto   resetStageUnits = MaxUsd::MakeScopeGuard(
+        [stage, &currentUpAxis]() { currentUpAxis = pxr::UsdGeomGetStageUpAxis(stage); },
+        [stage, &currentUpAxis]() { pxr::UsdGeomSetStageUpAxis(stage, currentUpAxis); });
+
+    // Test Y-up as up axis, differing from the max scene.
+    pxr::UsdGeomSetStageUpAxis(stage, pxr::TfToken("Y"));
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    auto       prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    Matrix3    tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate({ 66.0295792f, 18.3343010f, -26.6595020f });
+
+    // Moving 10 inches.
+    Point3 translation = { 0.f, 0.f, 10.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    // Verify that the prim indeed moved 10 units in the 3dsMax scene's space.
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+
+    Matrix3 expected;
+    // Moves 10 units toward Zup, whatever the up axis in the stage.
+    expected.SetTranslate({ 0.f, 0.f, 10.f });
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+}
+
+// Base class for test of the xformOp configuration following manipulation in 3dsMax. Much simple
+// scene, with a single box. However there are multiple xformOp in its local transform stack.
+class SubObjectXformOpTest : public ::testing::Test
+{
+public:
+    void SetUp() override
+    {
+        // Keep track of current units so we can set them back properly. Just making sure we always
+        // run the the with the same units.
+        GetSystemUnitInfo(&unitType, &unitScale);
+        SetSystemUnitInfo(UNITS_INCHES, 1.0f);
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath = testDataPath.append("subobject_pivot_transform.usda");
+        stageObject = static_cast<USDStageObject*>(
+            GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+        node = GetCOREInterface()->CreateObjectNode(stageObject);
+        stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+        // Select the box.
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+
+        primPath = pxr::SdfPath("/root/Box001");
+
+        auto ufeItem
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath));
+        newSelection.append(ufeItem);
+        globalUfeSel->replaceWith(newSelection);
+
+        // Switch to Prim sub-object mode.
+        GetCOREInterface()->SelectNode(node);
+        GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+        GetCOREInterface()->SetSubObjectLevel(1);
+
+        // If currently holding, stop. The SubObjectTransformTest tests call undo and we only
+        // want to undo the transform changes.
+        if (theHold.Holding()) {
+            theHold.Accept(L"Test setup");
+        }
+    }
+    void TearDown() override
+    {
+        GetCOREInterface()->FileReset(TRUE);
+        SetSystemUnitInfo(unitType, unitScale);
+    }
+    int   unitType;
+    float unitScale;
+
+    pxr::SdfPath    primPath;
+    INode*          node;
+    USDStageObject* stageObject;
+};
+
+// Testing that any pivot xform op found on the xformable's stack is respected.
+TEST_F(SubObjectXformOpTest, PrimWithPivot)
+{
+    // Simulate a sub-object rotate operation initiated from the UI.
+
+    const TimeValue time = 0;
+
+    stageObject->TransformStart(time);
+
+    const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    Quat    rotation;
+    AngAxis angAxis;
+    angAxis.Set(1.f, 0.0f, 0.f, 1.5708f); // 90 degree rotation around X.
+    rotation.Set(angAxis);
+    auto parentTm = node->GetNodeTM(time);
+
+    Matrix3 pivot; // The is the pivot set on the box in the usd file, 10 units up.
+    pivot.SetTranslate({ 0, 0, 10 });
+
+    stageObject->Rotate(time, parentTm, pivot, rotation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+
+    Matrix3 rotationMatrix;
+    rotation.MakeMatrix(rotationMatrix);
+
+    auto invPivot = pivot;
+    invPivot.Invert();
+
+    const Matrix3 expected = invPivot * rotationMatrix * pivot;
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+}
+
+TEST_F(SubObjectXformOpTest, CreateOrReuseXformOp)
+{
+    const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+    const auto xformable = pxr::UsdGeomXformable(prim);
+
+    // Initially there are 4 ops on the stack :
+    // transform, transform:t1, the pivot, and its inverse.
+    bool resetStack;
+    EXPECT_EQ(4, xformable.GetOrderedXformOps(&resetStack).size());
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto primPreTransform = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    auto    parentTm = node->GetNodeTM(time);
+    Point3  translation = { 0.f, 0.f, 10.f };
+    Matrix3 tmAxis;
+    tmAxis.SetTranslate(primPreTransform.GetTrans());
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+
+    stageObject->TransformFinish(time);
+
+    // Now we should have one more op, and it should be named t2.
+    const auto ops = xformable.GetOrderedXformOps(&resetStack);
+    EXPECT_EQ(5, ops.size());
+
+    const auto lastOp = ops.back();
+    EXPECT_EQ(lastOp.GetName(), pxr::TfToken("xformOp:transform:t2"));
+    EXPECT_EQ(lastOp.GetNumTimeSamples(), 0); // authoring at the default time code.
+
+    // Make sure its in the right place.
+    const auto primPostTransform
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    auto primPreTransformInv = primPreTransform;
+    primPreTransformInv.Invert();
+    const auto delta = primPreTransformInv * primPostTransform;
+    Matrix3    expected;
+    expected.SetTranslate(translation);
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+
+    // Move it another 10 units
+    const auto primPreTransform2
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+
+    stageObject->TransformStart(time);
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    // Should have found and reused t2, not created a new op.
+    auto ops2 = xformable.GetOrderedXformOps(&resetStack);
+    EXPECT_EQ(5, ops2.size());
+    auto lastOp2 = ops2.back();
+    EXPECT_EQ(lastOp2.GetName(), pxr::TfToken("xformOp:transform:t2"));
+    EXPECT_EQ(lastOp.GetNumTimeSamples(), 0); // authoring at the default time code.
+
+    // Make sure its in the right place.
+    const auto primPostTransform2
+        = USDStageObject::GetMaxScenePrimTransform(node, prim, time, false);
+    auto primPreTransformInv2 = primPreTransform2;
+    primPreTransformInv2.Invert();
+    const auto delta2 = primPreTransformInv2 * primPostTransform2;
+    EXPECT_TRUE(delta2.Equals(expected, MAX_FLOAT_EPSILON));
+}
+
+TEST_F(SubObjectXformOpTest, MoveInDifferentCoordSystem)
+{
+    const TimeValue time = 0;
+    // Give the node a non-trivial transform.
+    Matrix3 transform;
+    transform.SetScale({ 2.f, 2.f, 2.f });
+    transform.RotateX(1.5708f);
+    transform.SetTrans({ 0, 0, 5 });
+
+    node->SetNodeTM(time, transform);
+
+    const auto stage = stageObject->GetUSDStage();
+    const auto prim = stage->GetPrimAtPath(primPath);
+    const auto xformable = pxr::UsdGeomXformable(prim);
+
+    stageObject->TransformStart(time);
+
+    pxr::GfMatrix4d preTransform;
+    bool            resetStack;
+    xformable.GetLocalTransformation(
+        &preTransform, &resetStack, MaxUsd::GetCurrentUsdTimeCode(stage));
+
+    auto   parentTm = node->GetNodeTM(time);
+    Point3 translation = { 0.f, 0.f, 10.f };
+
+    // Setup the axis to simulate COORDS_LOCAL (transforming the prim in its local coordinate
+    // system).
+    Matrix3 tmAxis;
+    tmAxis.SetRow(0, { 1.f, 0.f, 0.f });
+    tmAxis.SetRow(1, { 0.f, 0.f, 1.f });
+    tmAxis.SetRow(2, { 0.f, -1.f, 0.f });
+    tmAxis.SetRow(3, { 0.f, -20.f, 5.f });
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    // Make sure its in the right place. Here, unlike in other tests, we compare the local
+    // transformation, because we set the axis transform to simulate the local coordsystem.
+    pxr::GfMatrix4d postTransform;
+    xformable.GetLocalTransformation(
+        &postTransform, &resetStack, MaxUsd::GetCurrentUsdTimeCode(stage));
+
+    const auto delta = MaxUsd::ToMaxMatrix3(preTransform.GetInverse() * postTransform);
+    Matrix3    expected;
+
+    // We applied a scaling of 2 on the node, so expect the local translation to compensate.
+    expected.SetTranslate(translation / 2.0f);
+    EXPECT_TRUE(delta.Equals(expected, MAX_FLOAT_EPSILON));
+}
+
+// Base class for tests involving moving multiple prims at the same time.
+class SubObjectTransformMultipleTest : public ::testing::Test
+{
+public:
+    void SetUp() override
+    {
+        // Keep track of current units so we can set them back properly. Just making sure we always
+        // run the test with the same units.
+        GetSystemUnitInfo(&unitType, &unitScale);
+        SetSystemUnitInfo(UNITS_INCHES, 1.0f);
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath = testDataPath.append("subobject_transform_multiple.usda");
+        stageObject = static_cast<USDStageObject*>(
+            GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+        node = GetCOREInterface()->CreateObjectNode(stageObject);
+        stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+        box1Path = pxr::SdfPath("/root/Box001");
+        box2Path = pxr::SdfPath("/root/Box002");
+        box3Path = pxr::SdfPath("/root/Box003");
+        box1item
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box1Path));
+        box2item
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box2Path));
+        box3item
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, box3Path));
+
+        Matrix3 nodeTm;
+        nodeTm.SetTranslate({ 0, 10, 0 });
+
+        node->SetNodeTM(0, nodeTm);
+
+        // Switch to Prim sub-object mode.
+        GetCOREInterface()->SelectNode(node);
+        GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+        GetCOREInterface()->SetSubObjectLevel(1);
+
+        // If currently holding, stop. The SubObjectTransformTest tests call undo and we only
+        // want to undo the transform changes.
+        if (theHold.Holding()) {
+            theHold.Accept(L"Test setup");
+        }
+    }
+    void TearDown() override
+    {
+        GetCOREInterface()->FileReset(TRUE);
+        SetSystemUnitInfo(unitType, unitScale);
+    }
+    int   unitType;
+    float unitScale;
+
+    pxr::SdfPath box1Path;
+    pxr::SdfPath box2Path;
+    pxr::SdfPath box3Path;
+
+    Ufe::SceneItem::Ptr box1item;
+    Ufe::SceneItem::Ptr box2item;
+    Ufe::SceneItem::Ptr box3item;
+
+    INode*          node;
+    USDStageObject* stageObject;
+};
+
+class SubObjAxisCallbackMock : public SubObjAxisCallback
+{
+public:
+    void Center(Point3 center, int id) override { this->center = center; }
+    void TM(Matrix3 tm, int id) override { this->tm = tm; }
+    int  Type() override { return 0; }
+
+    Point3  center;
+    Matrix3 tm;
+};
+
+// Check that centers are correctly computed with single and multi-selection.
+TEST_F(SubObjectTransformMultipleTest, Centers)
+{
+    const auto globalUfeSel = Ufe::GlobalSelection::get();
+
+    Ufe::Selection         newSelection;
+    SubObjAxisCallbackMock cb;
+
+    newSelection.append(box1item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ 10.f, 10.f, 10.f }));
+
+    newSelection.clear();
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ -10.f, 10.f, 10.f }));
+
+    newSelection.clear();
+    newSelection.append(box1item);
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ 0.f, 10.f, 10.f }));
+}
+
+// Check that axises are correctly computed with single and multi-selection.
+TEST_F(SubObjectTransformMultipleTest, TMs)
+{
+    const auto globalUfeSel = Ufe::GlobalSelection::get();
+
+    Ufe::Selection         newSelection;
+    SubObjAxisCallbackMock cb;
+
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 box2tm;
+    box2tm.SetTranslate({ -10.f, 10.f, 10.f });
+    EXPECT_TRUE(cb.tm.Equals(box2tm));
+
+    newSelection.clear();
+    newSelection.append(box3item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 box3tm
+        = { { -0.0, -1.0, 0.0 }, { 0.0, 0.0, 1.0 }, { -1.0, 0.0, 0.0 }, { 0.0, 10.0, 10.0 } };
+
+    EXPECT_TRUE(cb.tm.Equals(box3tm));
+
+    newSelection.clear();
+    newSelection.append(box2item);
+    newSelection.append(box3item);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 box2and3tm = { { 0.0, -1.0, 0.0 },
+                           { 0.707106709, 0.0, 0.707106769 },
+                           { -0.707106829, 0.0, 0.707106769 },
+                           { -5.0, 10.0, 10.0 } };
+    EXPECT_TRUE(cb.tm.Equals(box2and3tm));
+}
+
+TEST_F(SubObjectTransformMultipleTest, Move)
+{
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(box1item);
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+
+    SubObjAxisCallbackMock cb;
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto box1 = stageObject->GetUSDStage()->GetPrimAtPath(box1Path);
+    const auto primPreTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+
+    const auto box2 = stageObject->GetUSDStage()->GetPrimAtPath(box2Path);
+    const auto primPreTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate(cb.center);
+
+    Point3 translation = { 0.f, 0.f, 5.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+
+    auto primPreTransformInvBox1 = primPreTransformBox1;
+    primPreTransformInvBox1.Invert();
+    const auto deltaBox1 = primPreTransformInvBox1 * primPostTransformBox1;
+
+    const auto primPostTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+
+    auto primPreTransformInvBox2 = primPreTransformBox2;
+    primPreTransformInvBox2.Invert();
+    const auto deltaBox2 = primPreTransformInvBox2 * primPostTransformBox2;
+
+    Matrix3 expectedDelta;
+    expectedDelta.SetTranslate(translation);
+    EXPECT_TRUE(deltaBox1.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+    EXPECT_TRUE(deltaBox2.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+}
+
+TEST_F(SubObjectTransformMultipleTest, Rotate)
+{
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(box1item);
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+
+    SubObjAxisCallbackMock cb;
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto box1 = stageObject->GetUSDStage()->GetPrimAtPath(box1Path);
+    const auto primPreTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+
+    const auto box2 = stageObject->GetUSDStage()->GetPrimAtPath(box2Path);
+    const auto primPreTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate({ 0.f, 10.f, 25.3999996f });
+
+    auto parentTm = node->GetNodeTM(time);
+
+    Quat rotation { 0.f, 0.f, -0.707106769f, 0.707106769f };
+
+    stageObject->Rotate(time, parentTm, tmAxis, rotation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+    auto primPreTransformInvBox1 = primPreTransformBox1;
+    primPreTransformInvBox1.Invert();
+    const auto deltaBox1 = primPreTransformInvBox1 * primPostTransformBox1;
+
+    const auto primPostTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+    auto primPreTransformInvBox2 = primPreTransformBox2;
+    primPreTransformInvBox2.Invert();
+    const auto deltaBox2 = primPreTransformInvBox2 * primPostTransformBox2;
+
+    // Both boxes should have been rotated the same way, around the same axis by 90 degrees.
+    Matrix3 expectedDelta = { { 0, 1, 0 }, { -1, 0, 0 }, { 0, 0, 1 }, { 10, 10, 0 } };
+    EXPECT_TRUE(deltaBox1.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+    EXPECT_TRUE(deltaBox2.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+}
+
+TEST_F(SubObjectTransformMultipleTest, Scale)
+{
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(box1item);
+    newSelection.append(box2item);
+    globalUfeSel->replaceWith(newSelection);
+
+    SubObjAxisCallbackMock cb;
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto box1 = stageObject->GetUSDStage()->GetPrimAtPath(box1Path);
+    const auto primPreTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+
+    const auto box2 = stageObject->GetUSDStage()->GetPrimAtPath(box2Path);
+    const auto primPreTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate({ 0.f, 10.f, 25.3999996f });
+
+    auto parentTm = node->GetNodeTM(time);
+
+    Point3 scaling { 5.f, 5.f, 5.f };
+
+    stageObject->Scale(time, parentTm, tmAxis, scaling, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto primPostTransformBox1
+        = USDStageObject::GetMaxScenePrimTransform(node, box1, time, false);
+    auto primPreTransformInvBox1 = primPreTransformBox1;
+    primPreTransformInvBox1.Invert();
+    const auto deltaBox1 = primPreTransformInvBox1 * primPostTransformBox1;
+
+    const auto primPostTransformBox2
+        = USDStageObject::GetMaxScenePrimTransform(node, box2, time, false);
+    auto primPreTransformInvBox2 = primPreTransformBox2;
+    primPreTransformInvBox2.Invert();
+    const auto deltaBox2 = primPreTransformInvBox2 * primPostTransformBox2;
+
+    // Both boxes should have been scaled the same way, from the same origin.
+    // The translate delta in the transform component is (5-1)* -Point3{ 0.f, 10.f, 25.3999996f }
+    Matrix3 expectedDelta = { { 5, 0, 0 }, { 0, 5, 0 }, { 0, 0, 5 }, { 0.f, -40.f, -101.6f } };
+    EXPECT_TRUE(deltaBox1.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+    EXPECT_TRUE(deltaBox2.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+}
+
+class GetXformablePrimsFromSelectionTest : public ::testing::Test
+{
+public:
+    void SetUp() override
+    {
+        // Keep track of current units so we can set them back properly. Just making sure we always
+        // run the test with the same units.
+        GetSystemUnitInfo(&unitType, &unitScale);
+        SetSystemUnitInfo(UNITS_INCHES, 1.0f);
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath
+            = testDataPath.append("subobject_transform_multiple_what_xformable.usda");
+        stageObject = static_cast<USDStageObject*>(
+            GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+        node = GetCOREInterface()->CreateObjectNode(stageObject);
+        stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+        rootItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, root));
+        fooItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, foo));
+        barItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, bar));
+        bazItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, baz));
+        buzzItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, buzz));
+        quxItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, qux));
+        quuxItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, quux));
+        corgeItem = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, corge));
+        graultItem
+            = Ufe::Hierarchy::createItem(MaxUsd::ufe::getUsdPrimUfePath(stageObject, grault));
+
+        // Switch to Prim sub-object mode.
+        GetCOREInterface()->SelectNode(node);
+        GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+        GetCOREInterface()->SetSubObjectLevel(1);
+
+        // If currently holding, stop. The SubObjectTransformTest tests call undo and we only
+        // want to undo the transform changes.
+        if (theHold.Holding()) {
+            theHold.Accept(L"Test setup");
+        }
+    }
+
+    void TearDown() override
+    {
+        GetCOREInterface()->FileReset(TRUE);
+        SetSystemUnitInfo(unitType, unitScale);
+    }
+
+    int   unitType;
+    float unitScale;
+
+    pxr::SdfPath root { "/root" };
+    pxr::SdfPath foo { "/root/Foo" };
+    pxr::SdfPath bar { "/root/Bar" };
+    pxr::SdfPath baz { "/root/Bar/Baz" };
+    pxr::SdfPath buzz { "/root/Bar/Buzz" };
+    pxr::SdfPath qux { "/root/Bar/Qux" };
+    pxr::SdfPath quux { "/root/Bar/Qux/Quux" };
+    pxr::SdfPath corge { "/root/Bar/Qux/Corge" };
+    pxr::SdfPath grault { "/root/Bar/Grault" };
+
+    Ufe::SceneItem::Ptr rootItem;
+    Ufe::SceneItem::Ptr fooItem;
+    Ufe::SceneItem::Ptr barItem;
+    Ufe::SceneItem::Ptr bazItem;
+    Ufe::SceneItem::Ptr buzzItem;
+    Ufe::SceneItem::Ptr quxItem;
+    Ufe::SceneItem::Ptr quuxItem;
+    Ufe::SceneItem::Ptr corgeItem;
+    Ufe::SceneItem::Ptr graultItem;
+
+    INode*          node;
+    USDStageObject* stageObject;
+};
+
+TEST_F(GetXformablePrimsFromSelectionTest, TestFindXformablesToEdit)
+{
+    // When moving prims from a multi-selecttion, we need to find what prims to move,
+    // those are the xformable at the top of substrees.
+
+    /*
+     * /root/Foo (Mesh)
+     *      /Bar (Scope)
+     *         /Baz (mesh)
+     *		   /Buzz (mesh)
+     *		   /Qux (Xform)
+     *		       /Quux (Mesh)
+     *			   /Corge (Mesh)
+     *		   /Grault (Mesh)
+     **/
+
+    auto containsPath = [](const pxr::SdfPath&                              path,
+                           const std::vector<USDStageObject::Transformable> transformable) {
+        return transformable.end()
+            != std::find_if(
+                   transformable.begin(),
+                   transformable.end(),
+                   [&path](const USDStageObject::Transformable& t) {
+                       return path == t.prim.GetPath();
+                   });
+    };
+
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    newSelection.append(rootItem);
+    newSelection.append(barItem);
+    newSelection.append(fooItem);
+    newSelection.append(quxItem);
+    newSelection.append(corgeItem);
+    globalUfeSel->replaceWith(newSelection);
+    auto transformables = stageObject->GetTransformablesFromSelection();
+    EXPECT_EQ(1, transformables.size());
+    EXPECT_TRUE(containsPath(root, transformables));
+
+    newSelection.clear();
+    newSelection.append(fooItem);
+    newSelection.append(barItem); // Scope, not xformable.
+    globalUfeSel->replaceWith(newSelection);
+    transformables = stageObject->GetTransformablesFromSelection();
+    EXPECT_EQ(1, transformables.size());
+    EXPECT_TRUE(containsPath(foo, transformables));
+
+    newSelection.clear();
+    newSelection.append(fooItem);
+    newSelection.append(barItem); // Scope, not xformable.
+    newSelection.append(buzzItem);
+    newSelection.append(quxItem);
+    newSelection.append(corgeItem); // Qux selected, ignored.
+    globalUfeSel->replaceWith(newSelection);
+    transformables = stageObject->GetTransformablesFromSelection();
+    EXPECT_EQ(3, transformables.size());
+    EXPECT_TRUE(containsPath(foo, transformables));
+    EXPECT_TRUE(containsPath(buzz, transformables));
+    EXPECT_TRUE(containsPath(qux, transformables));
+
+    newSelection.clear();
+    newSelection.append(buzzItem);
+    newSelection.append(corgeItem);
+    newSelection.append(quuxItem);
+    globalUfeSel->replaceWith(newSelection);
+    transformables = stageObject->GetTransformablesFromSelection();
+    EXPECT_EQ(3, transformables.size());
+    EXPECT_TRUE(containsPath(buzz, transformables));
+    EXPECT_TRUE(containsPath(corge, transformables));
+    EXPECT_TRUE(containsPath(quux, transformables));
+}
+
+class SubObjectPointInstanceOpTest : public ::testing::Test
+{
+public:
+    void SetUp() override
+    {
+        // Keep track of current units so we can set them back properly. Just making sure we always
+        // run the the with the same units.
+        GetSystemUnitInfo(&unitType, &unitScale);
+        SetSystemUnitInfo(UNITS_INCHES, 1.0f);
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath = testDataPath.append("subobject_point_instance_transform.usda");
+        stageObject = static_cast<USDStageObject*>(
+            GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+        node = GetCOREInterface()->CreateObjectNode(stageObject);
+        stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+
+        // Switch to Prim sub-object mode.
+        GetCOREInterface()->SelectNode(node);
+        GetCOREInterface()->SetCommandPanelTaskMode(TASK_MODE_MODIFY);
+        GetCOREInterface()->SetSubObjectLevel(1);
+
+        // If currently holding, stop. The SubObjectTransformTest tests call undo and we only
+        // want to undo the transform changes.
+        if (theHold.Holding()) {
+            theHold.Accept(L"Test setup");
+        }
+    }
+    void TearDown() override
+    {
+        GetCOREInterface()->FileReset(TRUE);
+        SetSystemUnitInfo(unitType, unitScale);
+    }
+    int   unitType;
+    float unitScale;
+
+    INode*          node;
+    USDStageObject* stageObject;
+};
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstanceMove)
+{
+    auto primPath = pxr::SdfPath("/InstancerAllAttrAuth");
+
+    auto testMoveInstances = [this, &primPath](const std::vector<int>& indices) {
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+        for (const auto& idx : indices) {
+            auto ufeItem = Ufe::Hierarchy::createItem(
+                MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath, idx));
+            newSelection.append(ufeItem);
+        }
+        globalUfeSel->replaceWith(newSelection);
+
+        SubObjAxisCallbackMock cb;
+        stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+        const TimeValue time = 0;
+        stageObject->TransformStart(time);
+
+        const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+
+        const auto transformsPre
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        Matrix3 tmAxis = Matrix3::Identity;
+        tmAxis.SetTranslate(cb.center);
+
+        Point3 translation = { 0.f, 0.f, 5.f };
+        auto   parentTm = node->GetNodeTM(time);
+
+        stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+        stageObject->TransformFinish(time);
+
+        const auto transformsPost
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+
+        for (const auto& idx : indices) {
+            auto invTrans = transformsPre[idx];
+            invTrans.Invert();
+            const auto delta = invTrans * transformsPost[idx];
+
+            Matrix3 expectedDelta;
+            expectedDelta.SetTranslate(translation);
+            EXPECT_TRUE(delta.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+        }
+
+        // Test undo
+        ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+        const auto transformsPostUndo
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        for (int i = 0; i < transformsPre.size(); ++i) {
+            EXPECT_TRUE(transformsPre[i].Equals(transformsPostUndo[i], MAX_FLOAT_EPSILON));
+        }
+    };
+
+    // Single
+    testMoveInstances({ 0 });
+    // Multiple
+    testMoveInstances({ 0, 1 });
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstanceRotate)
+{
+    auto primPath = pxr::SdfPath("/InstancerAllAttrAuth");
+
+    auto testRotateInstances = [this, &primPath](const std::vector<int>& indices) {
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+        for (const auto& idx : indices) {
+            auto ufeItem = Ufe::Hierarchy::createItem(
+                MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath, idx));
+            newSelection.append(ufeItem);
+        }
+        globalUfeSel->replaceWith(newSelection);
+
+        SubObjAxisCallbackMock cb;
+        stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+        const TimeValue time = 0;
+        stageObject->TransformStart(time);
+
+        const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+
+        const auto transformsPre
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        Matrix3 tmAxis = Matrix3::Identity;
+        tmAxis.SetTranslate(cb.center);
+
+        Quat    rotation;
+        AngAxis angAxis;
+        angAxis.Set(1.f, 0.0f, 0.f, 1.5708f); // 90 degree rotation around X.
+        rotation.Set(angAxis);
+        auto parentTm = node->GetNodeTM(time);
+
+        stageObject->Rotate(time, parentTm, tmAxis, rotation, FALSE);
+        stageObject->TransformFinish(time);
+
+        const auto transformsPost
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+
+        const auto epsilon = 1E-3f;
+
+        for (const auto& idx : indices) {
+            auto invTrans = transformsPre[idx];
+            invTrans.Invert();
+            const auto delta = invTrans * transformsPost[idx];
+
+            Matrix3 rotationMatrix;
+            rotation.MakeMatrix(rotationMatrix);
+            auto invTmAxis = tmAxis;
+            invTmAxis.Invert();
+
+            const Matrix3 expectedDelta = invTmAxis * rotationMatrix * tmAxis;
+
+            EXPECT_TRUE(delta.Equals(expectedDelta, epsilon));
+        }
+
+        // Test undo
+        ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+        const auto transformsPostUndo
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        for (int i = 0; i < transformsPre.size(); ++i) {
+            EXPECT_TRUE(transformsPre[i].Equals(transformsPostUndo[i], epsilon));
+        }
+    };
+
+    // Single
+    testRotateInstances({ 0 });
+    // Multiple
+    testRotateInstances({ 0, 1 });
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstanceScale)
+{
+    auto primPath = pxr::SdfPath("/InstancerAllAttrAuth");
+
+    auto testScaleInstances = [this, &primPath](const std::vector<int>& indices) {
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+        for (const auto& idx : indices) {
+            auto ufeItem = Ufe::Hierarchy::createItem(
+                MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath, idx));
+            newSelection.append(ufeItem);
+        }
+        globalUfeSel->replaceWith(newSelection);
+
+        SubObjAxisCallbackMock cb;
+        stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+        const TimeValue time = 0;
+        stageObject->TransformStart(time);
+
+        const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(primPath);
+
+        const auto transformsPre
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        Matrix3 tmAxis = Matrix3::Identity;
+        tmAxis.SetTranslate(cb.center);
+
+        auto parentTm = node->GetNodeTM(time);
+
+        Point3 scaling { 5.f, 5.f, 5.f };
+        stageObject->Scale(time, parentTm, tmAxis, scaling, FALSE);
+        stageObject->TransformFinish(time);
+
+        const auto transformsPost
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+
+        for (const auto& idx : indices) {
+            auto invTrans = transformsPre[idx];
+            invTrans.Invert();
+            const auto delta = invTrans * transformsPost[idx];
+
+            Matrix3 scaleMatrix;
+            scaleMatrix.SetScale(scaling);
+            auto invTmAxis = tmAxis;
+            invTmAxis.Invert();
+            const Matrix3 expectedDelta = invTmAxis * scaleMatrix * tmAxis;
+
+            EXPECT_TRUE(delta.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+        }
+
+        // Test undo
+        ExecuteMAXScriptScript(L"max undo", MAXScript::ScriptSource::NonEmbedded);
+        const auto transformsPostUndo
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        for (int i = 0; i < transformsPre.size(); ++i) {
+            EXPECT_TRUE(transformsPre[i].Equals(transformsPostUndo[i], MAX_FLOAT_EPSILON));
+        }
+    };
+
+    // Single
+    testScaleInstances({ 0 });
+    // Multiple
+    testScaleInstances({ 0, 1 });
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstancerMiscSetups)
+{
+    std::vector<pxr::SdfPath> instancers = { pxr::SdfPath("/InstancerAttrNotAuth"),
+                                             pxr::SdfPath("/InstancerAttrAuthEmpty"),
+                                             pxr::SdfPath("/InstancerAttrAuthAtTime") };
+
+    for (const auto& path : instancers) {
+        auto indices = { 0, 1 };
+
+        const auto     globalUfeSel = Ufe::GlobalSelection::get();
+        Ufe::Selection newSelection;
+        for (const auto& idx : indices) {
+            auto ufeItem = Ufe::Hierarchy::createItem(
+                MaxUsd::ufe::getUsdPrimUfePath(stageObject, path, idx));
+            newSelection.append(ufeItem);
+        }
+        globalUfeSel->replaceWith(newSelection);
+
+        SubObjAxisCallbackMock cb;
+        stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+        const TimeValue time = 0;
+        stageObject->TransformStart(time);
+
+        const auto prim = stageObject->GetUSDStage()->GetPrimAtPath(path);
+
+        const auto transformsPre
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+        Matrix3 tmAxis = Matrix3::Identity;
+        tmAxis.SetTranslate(cb.center);
+
+        Point3 translation = { 0.f, 0.f, 5.f };
+        auto   parentTm = node->GetNodeTM(time);
+
+        stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+        stageObject->TransformFinish(time);
+
+        const auto transformsPost
+            = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+
+        for (const auto& idx : indices) {
+            auto invTrans = transformsPre[idx];
+            invTrans.Invert();
+            const auto delta = invTrans * transformsPost[idx];
+
+            Matrix3 expectedDelta;
+            expectedDelta.SetTranslate(translation);
+            EXPECT_TRUE(delta.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+        }
+
+        const auto instancer = pxr::UsdGeomPointInstancer { prim };
+
+        const auto posAttr = instancer.GetPositionsAttr();
+        ASSERT_TRUE(posAttr.IsAuthored());
+        pxr::VtVec3fArray pos;
+        posAttr.Get(&pos);
+        EXPECT_EQ(pos.size(), 2);
+
+        const auto oriAttr = instancer.GetOrientationsAttr();
+        ASSERT_TRUE(posAttr.IsAuthored());
+        pxr::VtQuathArray ori;
+        oriAttr.Get(&ori);
+        EXPECT_EQ(ori.size(), 2);
+
+        const auto sclAttr = instancer.GetScalesAttr();
+        ASSERT_TRUE(sclAttr.IsAuthored());
+        pxr::VtVec3fArray scl;
+        sclAttr.Get(&scl);
+        EXPECT_EQ(scl.size(), 2);
+    }
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstancerSubobjectCenters)
+{
+    const auto globalUfeSel = Ufe::GlobalSelection::get();
+
+    auto instance1 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCentersInstances" }, 0));
+    auto instance2 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCentersInstances" }, 1));
+    auto prim = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCenterPrim" }));
+
+    Ufe::Selection         newSelection;
+    SubObjAxisCallbackMock cb;
+    // Center from one instance.
+    newSelection.append(instance1);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ 10.f, 10.f, 10.f }));
+    // Center from abg of 2 instances.
+    newSelection.append(instance2);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ 5.f, 5.f, 5.f }));
+
+    // Test that mixing point instances and regular prims works also
+    newSelection.append(prim);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+    EXPECT_TRUE(cb.center.Equals({ 20.f, 20.f, 20.f }));
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstancerSubobjectTMs)
+{
+    // The math of the SubObjectTms is already tested in SubObjectTransformMultipleTest.TMs, here
+    // we just want to make sure point instances are considered properly. So looking only at the
+    // translation component is enough.
+
+    const auto globalUfeSel = Ufe::GlobalSelection::get();
+
+    auto instance1 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCentersInstances" }, 0));
+    auto instance2 = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCentersInstances" }, 1));
+    auto prim = Ufe::Hierarchy::createItem(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { "/SubobjCenterPrim" }));
+
+    Ufe::Selection         newSelection;
+    SubObjAxisCallbackMock cb;
+
+    newSelection.append(instance1);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 instance1tm;
+    instance1tm.SetTranslate({ 10.f, 10.f, 10.f });
+    EXPECT_TRUE(cb.tm.Equals(instance1tm));
+
+    newSelection.append(instance2);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 instance1and2tm;
+    instance1and2tm.SetTranslate({ 5.f, 5.f, 5.f });
+    EXPECT_TRUE(cb.tm.Equals(instance1and2tm));
+
+    newSelection.append(prim);
+    globalUfeSel->replaceWith(newSelection);
+    stageObject->GetSubObjectTMs(&cb, 0, node, nullptr);
+
+    Matrix3 instance1and2andPrimtm;
+    instance1and2andPrimtm.SetTranslate({ 20.f, 20.f, 20.f });
+    EXPECT_TRUE(cb.tm.Equals(instance1and2andPrimtm));
+}
+
+TEST_F(SubObjectPointInstanceOpTest, PointInstanceWithProtoXform)
+{
+    auto protoPath = pxr::SdfPath("/ProtoGreen");
+    auto primPath = pxr::SdfPath("/InstancerAllAttrAuth");
+
+    const auto stage = stageObject->GetUSDStage();
+
+    const auto protoPrim = stage->GetPrimAtPath(protoPath);
+    const auto protoXform = pxr::UsdGeomXformable { protoPrim };
+
+    protoXform.AddTranslateOp().Set(pxr::GfVec3d { 10, 10, 0 });
+
+    const auto indices = { 0 };
+
+    const auto     globalUfeSel = Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection;
+    for (const auto& idx : indices) {
+        auto ufeItem = Ufe::Hierarchy::createItem(
+            MaxUsd::ufe::getUsdPrimUfePath(stageObject, primPath, idx));
+        newSelection.append(ufeItem);
+    }
+    globalUfeSel->replaceWith(newSelection);
+
+    SubObjAxisCallbackMock cb;
+    stageObject->GetSubObjectCenters(&cb, 0, node, nullptr);
+
+    const TimeValue time = 0;
+    stageObject->TransformStart(time);
+
+    const auto prim = stage->GetPrimAtPath(primPath);
+
+    const auto transformsPre
+        = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+    Matrix3 tmAxis = Matrix3::Identity;
+    tmAxis.SetTranslate(cb.center);
+
+    Point3 translation = { 0.f, 0.f, 5.f };
+    auto   parentTm = node->GetNodeTM(time);
+
+    stageObject->Move(time, parentTm, tmAxis, translation, FALSE);
+    stageObject->TransformFinish(time);
+
+    const auto transformsPost
+        = USDStageObject::GetMaxScenePointInstancesTransforms(node, prim, indices, 0);
+
+    for (const auto& idx : indices) {
+        auto invTrans = transformsPre[idx];
+        invTrans.Invert();
+        const auto delta = invTrans * transformsPost[idx];
+
+        Matrix3 expectedDelta;
+        expectedDelta.SetTranslate(translation);
+        EXPECT_TRUE(delta.Equals(expectedDelta, MAX_FLOAT_EPSILON));
+    }
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.Consolidation.test.cpp b/src/Tests/System/RenderDelegate.Consolidation.test.cpp
new file mode 100644
index 0000000..ec9e341
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.Consolidation.test.cpp
@@ -0,0 +1,2120 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxEngine.h>
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/cone.h>
+
+#include <Windows.h>
+
+// Test that a single box is not consolidated.
+TEST(Consolidation, Consolidate1Box)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_1_box.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire },
+        consolidationConfig);
+
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    auto& renderDelegate = testEngine.GetRenderDelegate();
+    auto  renderData = renderDelegate->GetRenderDataIdMap();
+
+    auto it = renderData.find(pxr::SdfPath("/consolidation_1_box/Box001"));
+
+    // There is just one prim, so consolidation should not happen. Here we test that the render item
+    // returned by the render call is indeed the one from the USD prim's own render data.
+    auto& item = renderDelegate->GetRenderData(it->second);
+    EXPECT_EQ(item.shadedSubsets[0].renderItem, renderItems.GetRenderItem(0));
+    EXPECT_EQ(item.wireframe.renderItem, renderItems.GetRenderItem(1));
+}
+
+// Test that 2 boxes are consolidated together correctly.
+TEST(Consolidation, Consolidate2Boxes)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_2_boxes.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire },
+        consolidationConfig);
+
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    // Shaded item...
+    const auto& shadedRenderItem = renderItems.GetRenderItem(0);
+    auto        shadedGeometry = GetRenderItemGeometry(shadedRenderItem, false);
+
+    ASSERT_NE(nullptr, shadedGeometry);
+    EXPECT_EQ(MaxSDK::Graphics::PrimitiveTriangleList, shadedGeometry->GetPrimitiveType());
+    EXPECT_EQ(4, shadedGeometry->GetVertexBufferCount());
+    EXPECT_TRUE(shadedGeometry->GetIndexBuffer().IsValid());
+
+    // Check that points are OK.
+    auto pointsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(48, pointsBuffer.GetNumberOfVertices());
+
+    std::array<Point3, 48> expectedPoints
+        = { Point3(-14.170527, -4.749669, 0.000000), Point3(-14.170527, 7.248690, 0.000000),
+            Point3(-2.054874, 7.248690, 0.000000),   Point3(-2.054874, -4.749669, 0.000000),
+            Point3(-14.170527, -4.749669, 7.272934), Point3(-2.054874, -4.749669, 7.272934),
+            Point3(-2.054874, 7.248690, 7.272934),   Point3(-14.170527, 7.248690, 7.272934),
+            Point3(-14.170527, -4.749669, 0.000000), Point3(-2.054874, -4.749669, 0.000000),
+            Point3(-2.054874, -4.749669, 7.272934),  Point3(-14.170527, -4.749669, 7.272934),
+            Point3(-2.054874, -4.749669, 0.000000),  Point3(-2.054874, 7.248690, 0.000000),
+            Point3(-2.054874, 7.248690, 7.272934),   Point3(-2.054874, -4.749669, 7.272934),
+            Point3(-2.054874, 7.248690, 0.000000),   Point3(-14.170527, 7.248690, 0.000000),
+            Point3(-14.170527, 7.248690, 7.272934),  Point3(-2.054874, 7.248690, 7.272934),
+            Point3(-14.170527, 7.248690, 0.000000),  Point3(-14.170527, -4.749669, 0.000000),
+            Point3(-14.170527, -4.749669, 7.272934), Point3(-14.170527, 7.248690, 7.272934),
+            Point3(5.431611, -3.848971, 6.535490),   Point3(0.924379, 6.347991, 2.100668),
+            Point3(9.421789, 6.347991, -6.535490),   Point3(13.929021, -3.848971, -2.100668),
+            Point3(9.837482, -0.016105, 10.870581),  Point3(18.334892, -0.016105, 2.234422),
+            Point3(13.827660, 10.180856, -2.200399), Point3(5.330250, 10.180856, 6.435759),
+            Point3(5.431611, -3.848971, 6.535490),   Point3(13.929021, -3.848971, -2.100668),
+            Point3(18.334892, -0.016105, 2.234422),  Point3(9.837482, -0.016105, 10.870581),
+            Point3(13.929021, -3.848971, -2.100668), Point3(9.421789, 6.347991, -6.535490),
+            Point3(13.827660, 10.180856, -2.200399), Point3(18.334892, -0.016105, 2.234422),
+            Point3(9.421789, 6.347991, -6.535490),   Point3(0.924379, 6.347991, 2.100668),
+            Point3(5.330250, 10.180856, 6.435759),   Point3(13.827660, 10.180856, -2.200399),
+            Point3(0.924379, 6.347991, 2.100668),    Point3(5.431611, -3.848971, 6.535490),
+            Point3(9.837482, -0.016105, 10.870581),  Point3(5.330250, 10.180856, 6.435759) };
+
+    const auto pointsData
+        = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedPoints.data(),
+        static_cast<int>(expectedPoints.size()),
+        pointsData,
+        static_cast<int>(pointsBuffer.GetNumberOfVertices())));
+
+    // Check that the normals are OK.
+    auto normalsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(48, normalsBuffer.GetNumberOfVertices());
+
+    const auto normalsData
+        = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    std::array<Point3, 48> expectedNormals
+        = { Point3(0.000000, 0.000000, -1.000000),   Point3(0.000000, 0.000000, -1.000000),
+            Point3(0.000000, 0.000000, -1.000000),   Point3(0.000000, 0.000000, -1.000000),
+            Point3(0.000000, 0.000000, 1.000000),    Point3(0.000000, 0.000000, 1.000000),
+            Point3(0.000000, 0.000000, 1.000000),    Point3(0.000000, 0.000000, 1.000000),
+            Point3(0.000000, -1.000000, 0.000000),   Point3(0.000000, -1.000000, 0.000000),
+            Point3(0.000000, -1.000000, 0.000000),   Point3(0.000000, -1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000),    Point3(1.000000, 0.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000),    Point3(1.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000),    Point3(0.000000, 1.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000),    Point3(0.000000, 1.000000, 0.000000),
+            Point3(-1.000000, 0.000000, 0.000000),   Point3(-1.000000, 0.000000, 0.000000),
+            Point3(-1.000000, 0.000000, 0.000000),   Point3(-1.000000, 0.000000, 0.000000),
+            Point3(-0.605790, -0.527004, -0.596058), Point3(-0.605790, -0.527004, -0.596058),
+            Point3(-0.605790, -0.527004, -0.596058), Point3(-0.605790, -0.527004, -0.596058),
+            Point3(0.605790, 0.527004, 0.596058),    Point3(0.605790, 0.527004, 0.596058),
+            Point3(0.605790, 0.527004, 0.596058),    Point3(0.605790, 0.527004, 0.596058),
+            Point3(0.375654, -0.849863, 0.369619),   Point3(0.375654, -0.849863, 0.369619),
+            Point3(0.375654, -0.849863, 0.369619),   Point3(0.375654, -0.849863, 0.369619),
+            Point3(0.701358, 0.000000, -0.712810),   Point3(0.701358, 0.000000, -0.712810),
+            Point3(0.701358, 0.000000, -0.712810),   Point3(0.701358, 0.000000, -0.712810),
+            Point3(-0.375654, 0.849863, -0.369619),  Point3(-0.375654, 0.849863, -0.369619),
+            Point3(-0.375654, 0.849863, -0.369619),  Point3(-0.375654, 0.849863, -0.369619),
+            Point3(-0.701358, 0.000000, 0.712810),   Point3(-0.701358, 0.000000, 0.712810),
+            Point3(-0.701358, 0.000000, 0.712810),   Point3(-0.701358, 0.000000, 0.712810) };
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedNormals.data(),
+        static_cast<int>(expectedNormals.size()),
+        normalsData,
+        static_cast<int>(normalsBuffer.GetNumberOfVertices())));
+
+    // Check that the UVs are OK.
+    auto uvsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(48, uvsBuffer.GetNumberOfVertices());
+
+    std::array<Point3, 48> expectedUvs
+        = { Point3(1.000000, 1.000000, 0.000000), Point3(1.000000, 0.000000, 0.000000),
+            Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(1.000000, 1.000000, 0.000000), Point3(1.000000, 0.000000, 0.000000),
+            Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000), Point3(1.000000, 1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000), Point3(0.000000, 0.000000, 0.000000) };
+    const auto uvsData
+        = reinterpret_cast<Point3*>(uvsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedUvs.data(),
+        static_cast<int>(expectedUvs.size()),
+        uvsData,
+        static_cast<int>(uvsBuffer.GetNumberOfVertices())));
+
+    // Check that indices are OK.
+    auto trianglesIndexBuffer = shadedGeometry->GetIndexBuffer();
+    EXPECT_EQ(72, trianglesIndexBuffer.GetNumberOfIndices());
+
+    std::array<int, 72> expectedIndices
+        = { 0,  1,  2,  0,  2,  3,  4,  5,  6,  4,  6,  7,  8,  9,  10, 8,  10, 11,
+            12, 13, 14, 12, 14, 15, 16, 17, 18, 16, 18, 19, 20, 21, 22, 20, 22, 23,
+            24, 25, 26, 24, 26, 27, 28, 29, 30, 28, 30, 31, 32, 33, 34, 32, 34, 35,
+            36, 37, 38, 36, 38, 39, 40, 41, 42, 40, 42, 43, 44, 45, 46, 44, 46, 47 };
+    const auto indicesData
+        = reinterpret_cast<int*>(trianglesIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedIndices.begin(), expectedIndices.end(), indicesData));
+
+    // Wireframe item...
+    const auto& wireframeRenderItem = renderItems.GetRenderItem(1);
+    EXPECT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        wireframeRenderItem.GetVisibilityGroup());
+
+    auto wireframeGeometry = GetRenderItemGeometry(wireframeRenderItem, false);
+
+    ASSERT_NE(nullptr, wireframeGeometry);
+    ASSERT_EQ(MaxSDK::Graphics::PrimitiveLineList, wireframeGeometry->GetPrimitiveType());
+    // No uvs for wireframe, only points, normals, and selection info for highlighting (tested
+    // in details elsewhere).
+    ASSERT_EQ(3, wireframeGeometry->GetVertexBufferCount());
+    ASSERT_TRUE(wireframeGeometry->GetIndexBuffer().IsValid());
+
+    // The wireframe item should be using the same vertex buffers as the shaded geometry.
+    EXPECT_EQ(pointsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer));
+    EXPECT_EQ(normalsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer));
+
+    // Check that indices for the wire edges are OK.
+    auto edgeIndexBuffer = wireframeGeometry->GetIndexBuffer();
+    EXPECT_EQ(96, edgeIndexBuffer.GetNumberOfIndices());
+
+    const auto wireframeIndicesData
+        = reinterpret_cast<int*>(edgeIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    std::array<int, 96> wireframeExpectedIndices
+        = { 0,  1,  1,  2,  2,  3,  3,  0,  4,  5,  5,  6,  6,  7,  7,  4,  8,  9,  9,  10,
+            10, 11, 11, 8,  12, 13, 13, 14, 14, 15, 15, 12, 16, 17, 17, 18, 18, 19, 19, 16,
+            20, 21, 21, 22, 22, 23, 23, 20, 24, 25, 25, 26, 26, 27, 27, 24, 28, 29, 29, 30,
+            30, 31, 31, 28, 32, 33, 33, 34, 34, 35, 35, 32, 36, 37, 37, 38, 38, 39, 39, 36,
+            40, 41, 41, 42, 42, 43, 43, 40, 44, 45, 45, 46, 46, 47, 47, 44 };
+    EXPECT_TRUE(std::equal(
+        wireframeExpectedIndices.begin(), wireframeExpectedIndices.end(), wireframeIndicesData));
+}
+
+// Test that instances are consolidated correctly.
+TEST(Consolidation, ConsolidateInstances)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire },
+        consolidationConfig);
+
+    // 4 instances, consolidated... one for shaded, one for wireframe.
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    // Shaded item...
+    const auto& shadedRenderItem = renderItems.GetRenderItem(0);
+    auto        shadedGeometry = GetRenderItemGeometry(shadedRenderItem, false);
+
+    ASSERT_NE(nullptr, shadedGeometry);
+    EXPECT_EQ(MaxSDK::Graphics::PrimitiveTriangleList, shadedGeometry->GetPrimitiveType());
+    EXPECT_EQ(4, shadedGeometry->GetVertexBufferCount());
+    EXPECT_TRUE(shadedGeometry->GetIndexBuffer().IsValid());
+
+    // Check that points are OK.
+    auto pointsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(48, pointsBuffer.GetNumberOfVertices());
+
+    const auto pointsData
+        = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    std::array<Point3, 48> expectedPoints
+        = { Point3(0.168677, -0.483523, 7.066816),    Point3(0.168677, 6.583293, -0.000000),
+            Point3(-6.898139, -0.483524, -0.000000),  Point3(0.168677, -0.483523, 7.066816),
+            Point3(-6.898139, -0.483524, -0.000000),  Point3(0.168677, -7.550339, -0.000000),
+            Point3(0.168677, -0.483523, 7.066816),    Point3(0.168677, -7.550339, -0.000000),
+            Point3(7.235493, -0.483522, -0.000000),   Point3(0.168677, -0.483523, 7.066816),
+            Point3(7.235493, -0.483522, -0.000000),   Point3(0.168677, 6.583293, -0.000000),
+            Point3(-21.048500, -0.483523, 7.066816),  Point3(-21.048500, 6.583293, -0.000000),
+            Point3(-28.115316, -0.483524, -0.000000), Point3(-21.048500, -0.483523, 7.066816),
+            Point3(-28.115316, -0.483524, -0.000000), Point3(-21.048500, -7.550339, -0.000000),
+            Point3(-21.048500, -0.483523, 7.066816),  Point3(-21.048500, -7.550339, -0.000000),
+            Point3(-13.981684, -0.483522, -0.000000), Point3(-21.048500, -0.483523, 7.066816),
+            Point3(-13.981684, -0.483522, -0.000000), Point3(-21.048500, 6.583293, -0.000000),
+            Point3(19.769899, -0.483523, 7.066816),   Point3(19.769899, 6.583293, -0.000000),
+            Point3(12.703083, -0.483524, -0.000000),  Point3(19.769899, -0.483523, 7.066816),
+            Point3(12.703083, -0.483524, -0.000000),  Point3(19.769899, -7.550339, -0.000000),
+            Point3(19.769899, -0.483523, 7.066816),   Point3(19.769899, -7.550339, -0.000000),
+            Point3(26.836716, -0.483522, -0.000000),  Point3(19.769899, -0.483523, 7.066816),
+            Point3(26.836716, -0.483522, -0.000000),  Point3(19.769899, 6.583293, -0.000000),
+            Point3(-0.122053, 18.332500, 7.066816),   Point3(-0.122053, 25.399317, -0.000000),
+            Point3(-7.188869, 18.332500, -0.000000),  Point3(-0.122053, 18.332500, 7.066816),
+            Point3(-7.188869, 18.332500, -0.000000),  Point3(-0.122053, 11.265684, -0.000000),
+            Point3(-0.122053, 18.332500, 7.066816),   Point3(-0.122053, 11.265684, -0.000000),
+            Point3(6.944763, 18.332502, -0.000000),   Point3(-0.122053, 18.332500, 7.066816),
+            Point3(6.944763, 18.332502, -0.000000),   Point3(-0.122053, 25.399317, -0.000000) };
+
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedPoints.data(),
+        static_cast<int>(expectedPoints.size()),
+        pointsData,
+        static_cast<int>(pointsBuffer.GetNumberOfVertices())));
+
+    // Check that the normals are OK.
+    auto normalsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(48, normalsBuffer.GetNumberOfVertices());
+
+    std::array<Point3, 48> expectedNormals
+        = { Point3(0.000000, -0.000000, 1.000000),  Point3(-0.000000, 0.707107, 0.707107),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.000000, 1.000000),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(0.000000, -0.000000, 1.000000),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(-0.000000, 0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(-0.000000, 0.707107, 0.707107),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.000000, 1.000000),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(0.000000, -0.000000, 1.000000),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(-0.000000, 0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(-0.000000, 0.707107, 0.707107),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.000000, 1.000000),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(0.000000, -0.000000, 1.000000),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(-0.000000, 0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(-0.000000, 0.707107, 0.707107),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.000000, 1.000000),
+            Point3(-0.707107, -0.000000, 0.707107), Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.000000, -0.000000, 1.000000),  Point3(0.000000, -0.707107, 0.707107),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(0.000000, -0.000000, 1.000000),
+            Point3(0.707107, 0.000000, 0.707107),   Point3(-0.000000, 0.707107, 0.707107) };
+
+    const auto normalsData
+        = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedNormals.data(),
+        static_cast<int>(expectedNormals.size()),
+        normalsData,
+        static_cast<int>(normalsBuffer.GetNumberOfVertices())));
+
+    // Check that the UVs are OK.
+    auto uvsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(48, uvsBuffer.GetNumberOfVertices());
+    std::array<Point3, 48> expectedUvs
+        = { Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.250000, 0.000000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(0.750000, 0.000000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(1.000000, 0.500000, 0.000000),
+            Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.250000, 0.000000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(0.750000, 0.000000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(1.000000, 0.500000, 0.000000),
+            Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.250000, 0.000000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(0.750000, 0.000000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(1.000000, 0.500000, 0.000000),
+            Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.250000, 0.000000, 0.000000),
+            Point3(0.250000, 0.500000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(0.750000, 0.000000, 0.000000),
+            Point3(0.750000, 0.500000, 0.000000), Point3(1.000000, 0.500000, 0.000000) };
+
+    const auto uvsData
+        = reinterpret_cast<Point3*>(uvsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedUvs.data(),
+        static_cast<int>(expectedUvs.size()),
+        uvsData,
+        static_cast<int>(uvsBuffer.GetNumberOfVertices())));
+
+    // Check that indices are OK.
+    auto trianglesIndexBuffer = shadedGeometry->GetIndexBuffer();
+    EXPECT_EQ(48, trianglesIndexBuffer.GetNumberOfIndices());
+
+    std::array<int, 48> expectedIndices
+        = { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15,
+            16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+            32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 };
+
+    const auto indicesData
+        = reinterpret_cast<int*>(trianglesIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedIndices.begin(), expectedIndices.end(), indicesData));
+
+    // Wireframe item...
+    const auto& wireframeRenderItem = renderItems.GetRenderItem(1);
+    EXPECT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        wireframeRenderItem.GetVisibilityGroup());
+
+    auto wireframeGeometry = GetRenderItemGeometry(wireframeRenderItem, false);
+
+    ASSERT_NE(nullptr, wireframeGeometry);
+    ASSERT_EQ(MaxSDK::Graphics::PrimitiveLineList, wireframeGeometry->GetPrimitiveType());
+    // No uvs for wireframe, only points, normals, and selection info for highlighting (tested
+    // in details elsewhere).
+    ASSERT_EQ(3, wireframeGeometry->GetVertexBufferCount());
+    ASSERT_TRUE(wireframeGeometry->GetIndexBuffer().IsValid());
+
+    // The wireframe item should be using the same vertex buffers as the shaded geometry.
+    EXPECT_EQ(pointsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer));
+    EXPECT_EQ(normalsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer));
+
+    // Check that indices for the wire edges are OK.
+    auto edgeIndexBuffer = wireframeGeometry->GetIndexBuffer();
+    EXPECT_EQ(96, edgeIndexBuffer.GetNumberOfIndices());
+
+    std::array<int, 96> wireframeExpectedIndices
+        = { 0,  1,  1,  2,  2,  0,  3,  4,  4,  5,  5,  3,  6,  7,  7,  8,  8,  6,  9,  10,
+            10, 11, 11, 9,  12, 13, 13, 14, 14, 12, 15, 16, 16, 17, 17, 15, 18, 19, 19, 20,
+            20, 18, 21, 22, 22, 23, 23, 21, 24, 25, 25, 26, 26, 24, 27, 28, 28, 29, 29, 27,
+            30, 31, 31, 32, 32, 30, 33, 34, 34, 35, 35, 33, 36, 37, 37, 38, 38, 36, 39, 40,
+            40, 41, 41, 39, 42, 43, 43, 44, 44, 42, 45, 46, 46, 47, 47, 45 };
+
+    const auto wireframeIndicesData
+        = reinterpret_cast<int*>(edgeIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    EXPECT_TRUE(std::equal(
+        wireframeExpectedIndices.begin(), wireframeExpectedIndices.end(), wireframeIndicesData));
+}
+
+// That the case where instances need to be consolidated, but split into multiple cells / merged
+// meshes.
+TEST(Consolidation, ConsolidateInstancesSplit)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    // Scene is 4 instances of pyramids composed of 4 triangles, so 16 total. With a max cell size
+    // of 8, the instances should be split over 2 consolidation cells.
+    consolidationConfig.maxCellSize = 8;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire },
+        consolidationConfig);
+
+    // 4 instances, consolidated into 2 meshes (2 cells)... so 4 render items 2 for shaded, 2 for
+    // wireframe.
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(2).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(3).GetVisibilityGroup());
+
+    for (int i = 0; i < 2; i++) {
+        const auto& shadedRenderItem
+            = renderItems.GetRenderItem(i * 2); // shaded render items are at 0 and 2.
+        auto shadedGeometry = GetRenderItemGeometry(shadedRenderItem, false);
+
+        auto pointsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+        EXPECT_EQ(24, pointsBuffer.GetNumberOfVertices());
+
+        // Check that the normals are OK.
+        auto normalsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+        EXPECT_EQ(24, normalsBuffer.GetNumberOfVertices());
+
+        // Check that the selection buffer is OK.
+        auto selBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::SelectionBuffer);
+        EXPECT_EQ(24, selBuffer.GetNumberOfVertices());
+
+        // Check that the UVs are OK.
+        auto uvsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+        EXPECT_EQ(24, uvsBuffer.GetNumberOfVertices());
+
+        // Check that indices are OK.
+        auto trianglesIndexBuffer = shadedGeometry->GetIndexBuffer();
+        EXPECT_EQ(24, trianglesIndexBuffer.GetNumberOfIndices());
+
+        // Wireframe item...
+        const auto& wireframeRenderItem = renderItems.GetRenderItem(i * 2 + 1);
+        EXPECT_EQ(
+            MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+            wireframeRenderItem.GetVisibilityGroup());
+
+        auto wireframeGeometry = GetRenderItemGeometry(wireframeRenderItem, false);
+
+        // Check that indices for the wire edges are OK.
+        auto edgeIndexBuffer = wireframeGeometry->GetIndexBuffer();
+        EXPECT_EQ(48, edgeIndexBuffer.GetNumberOfIndices());
+    }
+}
+
+// A few helpers to help validate the data we generate.
+static int GetVertexCount(const MaxSDK::Graphics::RenderItemHandle& renderItem, bool decorated)
+{
+    const auto pointsBuffer = GetRenderItemGeometry(renderItem, decorated)
+                                  ->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    return static_cast<int>(pointsBuffer.GetNumberOfVertices());
+}
+
+static int GetTriCount(const MaxSDK::Graphics::RenderItemHandle& renderItem, bool decorated)
+{
+    const auto indices = GetRenderItemGeometry(renderItem, decorated)->GetIndexBuffer();
+    return static_cast<int>(indices.GetNumberOfIndices() / 3);
+}
+
+static Box3 GetBoundingBox(
+    const MaxSDK::Graphics::RenderItemHandle& renderItem,
+    bool                                      decorated,
+    Matrix3*                                  tm = nullptr)
+{
+    auto points = GetRenderItemGeometry(renderItem, decorated)
+                      ->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    auto rawPoints = reinterpret_cast<Point3*>(points.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    Box3 bbox;
+    bbox.IncludePoints(rawPoints, static_cast<int>(points.GetNumberOfVertices()), tm);
+    points.Unlock();
+    return bbox;
+}
+
+// Test the consolidation of when multiple materials/objects are present.
+TEST(Consolidation, Consolidate10Objects4Materials)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_materials.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 500;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::USDPreviewSurface, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // There are 10 objects in the scene, but only 4 different materials. One of the materials is
+    // used by a single object
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+
+    // Check that the resulting meshes are of expected sizes (order is non-deterministic, because we
+    // key off material handles)
+    std::unordered_set<int> expectedPointSizes = { 48, 96, 72, 24 };
+    std::unordered_set<int> found = {};
+
+    for (int i = 0; i < 4; i++) {
+        const auto& shadedRenderItem = renderItems.GetRenderItem(i);
+        // The last render item is not consolidated as it is a single mesh, so we expect a decorated
+        // render item (with an offset transform).
+        found.insert(GetVertexCount(shadedRenderItem, i == 3));
+    }
+    EXPECT_EQ(expectedPointSizes, found);
+
+    renderItems.ClearAllRenderItems();
+
+    // Setup to use the wire color... now everything can be consolidated together in a single mesh.
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    const auto& shadedRenderItem = renderItems.GetRenderItem(0);
+
+    auto shadedGeometry = GetRenderItemGeometry(shadedRenderItem, false);
+
+    auto pointsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(240, pointsBuffer.GetNumberOfVertices());
+}
+
+// Tests to cover consolidation options :
+
+TEST(Consolidation, MaxTrianglesOption)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_3_spheres.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    // This file contains 3 spheres, with 8,80 and 960 triangles respectively.
+
+    // 1) All spheres eligible for consolidation :
+    consolidationConfig.maxTriangles = 5000;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(960 + 80 + 8, GetTriCount(renderItems.GetRenderItem(0), false));
+
+    renderItems.ClearAllRenderItems();
+
+    consolidationConfig.maxTriangles = 960; // At the limit for the 960 tris sphere
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(960 + 80 + 8, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+
+    // 2) 2 spheres eligible for consolidation :
+    consolidationConfig.maxTriangles = 959;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(80 + 8, GetTriCount(renderItems.GetRenderItem(0), false));
+    EXPECT_EQ(960, GetTriCount(renderItems.GetRenderItem(1), true)); // Not consolidated
+    renderItems.ClearAllRenderItems();
+
+    consolidationConfig.maxTriangles = 80; // At the limit for the 80 tris sphere.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(80 + 8, GetTriCount(renderItems.GetRenderItem(0), false));
+    EXPECT_EQ(960, GetTriCount(renderItems.GetRenderItem(1), true)); // Not consolidated
+    renderItems.ClearAllRenderItems();
+
+    // 3) 1 sphere eligible for consolidation.. nothing is consolidated:
+    consolidationConfig.maxTriangles = 79;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(3, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(8, GetTriCount(renderItems.GetRenderItem(0), true));
+    EXPECT_EQ(80, GetTriCount(renderItems.GetRenderItem(1), true));
+    EXPECT_EQ(960, GetTriCount(renderItems.GetRenderItem(2), true));
+    renderItems.ClearAllRenderItems();
+}
+
+TEST(Consolidation, MaxCellSizeOption)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_materials.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    // This file contains 10 boxes, each composed of 12 triangles.
+
+    // We don't care about the materials for this test, we just want to merge the 10 boxes contained
+    // in this file with various max cell size values.
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    // 1) All boxes can be merged into a single cell.
+    consolidationConfig.maxCellSize = 200;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(120, GetTriCount(renderItems.GetRenderItem(0), false));
+
+    renderItems.ClearAllRenderItems();
+    consolidationConfig.maxCellSize = 120; // limit
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(120, GetTriCount(renderItems.GetRenderItem(0), false));
+
+    // 2) A few cases which potentially require multiple cells.
+
+    // 1 consolidated mesh + 1 left over...
+    consolidationConfig.maxCellSize = 119;
+    renderItems.ClearAllRenderItems();
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(108, GetTriCount(renderItems.GetRenderItem(0), false));
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true)); // Unconsolidated
+    renderItems.ClearAllRenderItems();
+
+    // 2 unequal cells.
+    consolidationConfig.maxCellSize = 96;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(96, GetTriCount(renderItems.GetRenderItem(0), false));
+    EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(1), false));
+    renderItems.ClearAllRenderItems();
+
+    // 2 equal cells.
+    consolidationConfig.maxCellSize = 60;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(60, GetTriCount(renderItems.GetRenderItem(0), false));
+    EXPECT_EQ(60, GetTriCount(renderItems.GetRenderItem(1), false));
+    renderItems.ClearAllRenderItems();
+
+    // 5 equal cells.
+    consolidationConfig.maxCellSize = 25;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(5, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 5; i++) {
+        EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(i), false));
+    }
+    renderItems.ClearAllRenderItems();
+
+    // 3) Max cell size < triangle count
+    consolidationConfig.maxCellSize = 11;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(10, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 10; i++) {
+        EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(i), true)); // unconsolidated
+    }
+    renderItems.ClearAllRenderItems();
+}
+
+TEST(Consolidation, MaxInstanceCountSizeOption)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.staticDelay = 0;
+
+    // 4 Instances in the scene... (pyramids formed of 4 triangles)
+
+    consolidationConfig.maxInstanceCount = 1000; // Over
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(16, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+
+    consolidationConfig.maxInstanceCount = 4; // limit
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(16, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+
+    consolidationConfig.maxInstanceCount = 3; // Under
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    // There is no exposed way to access the instancing data, but we can still know this is a
+    // instance render item and not a render item from consolidation by looking at the geometry,
+    // which will be null here in the case of instances.
+    EXPECT_EQ(nullptr, GetRenderItemGeometry(renderItems.GetRenderItem(0), false));
+}
+
+TEST(Consolidation, StaticStrategy)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_2_boxes_animated.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 100;
+
+    // Time code 0 -> not static -> dont consolidate
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(0), true)); // not consolidated.
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true)); // not consolidated.
+    renderItems.ClearAllRenderItems();
+
+    Sleep(static_cast<DWORD>(consolidationConfig.staticDelay));
+
+    // Render again time code 0, now will consider we are in the static case... consolidate.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+
+    // Render at time code 1 -> meshes have changed -> break consolidation.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        1,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(0), true));
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true));
+    renderItems.ClearAllRenderItems();
+}
+
+TEST(Consolidation, StaticStrategyOnStaticData)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_2_boxes.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 100;
+
+    // Time code 0 -> not static -> dont consolidate
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(0), true)); // not consolidated.
+    EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true)); // not consolidated.
+    renderItems.ClearAllRenderItems();
+
+    Sleep(static_cast<DWORD>(consolidationConfig.staticDelay));
+
+    // Render again time code 0, now will consider we are in the static case... consolidate.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+
+    // Render at time code 1 -> nothing has changed in the scene as it is not animated -> the
+    // consolidation should still be valid/used even though we are in static mode.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        1,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(0), false));
+    renderItems.ClearAllRenderItems();
+}
+
+TEST(Consolidation, DynamicStrategy)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_2_planes_anim.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Dynamic;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 100;
+
+    // Time code 0 -> dynamic mode -> consolidate!
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+    auto geom1 = GetRenderItemGeometry(renderItems.GetRenderItem(0), false);
+
+    {
+        auto pointsBuffer = geom1->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+        auto pointsData
+            = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedPoints
+            = { Point3(-22.412651, -2.047300, 0.000000),  Point3(-22.412651, -13.864553, 0.000000),
+                Point3(-10.205800, -13.864553, 0.000000), Point3(-10.205800, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, -13.864553, 0.000000),
+                Point3(2.001050, -13.864553, 0.000000),   Point3(2.001050, -2.047300, 0.000000),
+                Point3(-22.412651, 9.769953, 0.000000),   Point3(-22.412651, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, 9.769953, 0.000000),
+                Point3(-10.205800, 9.769953, 0.000000),   Point3(-10.205800, -2.047300, 0.000000),
+                Point3(2.001050, -2.047300, 0.000000),    Point3(2.001050, 9.769953, 0.000000),
+                Point3(15.351128, -10.598882, 15.736800), Point3(21.728214, -17.094683, 11.861380),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(30.438984, -8.543102, 11.861380),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(21.728214, -17.094683, 11.861380),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(30.438984, -8.543102, 11.861380),
+                Point3(32.772671, 6.504281, 15.736800),   Point3(39.149757, 0.008479, 11.861380),
+                Point3(32.772671, 6.504281, 15.736800),   Point3(30.438984, -8.543102, 11.861380),
+                Point3(8.974042, -4.103080, 19.612221),   Point3(15.351128, -10.598882, 15.736800),
+                Point3(17.684814, 4.448502, 19.612221),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(17.684814, 4.448502, 19.612221),   Point3(15.351128, -10.598882, 15.736800),
+                Point3(17.684814, 4.448502, 19.612221),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(26.395584, 13.000083, 19.612221),  Point3(32.772671, 6.504281, 15.736800),
+                Point3(26.395584, 13.000083, 19.612221),  Point3(24.061899, -2.047300, 15.736800) };
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedPoints.data(),
+            static_cast<int>(expectedPoints.size()),
+            pointsData,
+            static_cast<int>(pointsBuffer.GetNumberOfVertices())));
+        pointsBuffer.Unlock();
+    }
+
+    {
+        auto normalsBuffer = geom1->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+        auto normalsData
+            = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedNormals = { Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.00000000, 0.00000000, 1.00000000),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695),
+                                                   Point3(0.274416447, -0.279525071, 0.920087695) };
+        ;
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedNormals.data(),
+            static_cast<int>(expectedNormals.size()),
+            normalsData,
+            static_cast<int>(normalsBuffer.GetNumberOfVertices())));
+        normalsBuffer.Unlock();
+    }
+
+    {
+        auto uvBuffer = geom1->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+        auto uvData = reinterpret_cast<Point3*>(uvBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedUvs
+            = { Point3(0.000000, 0.500000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+                Point3(0.500000, 1.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+                Point3(0.500000, 0.500000, 0.000000), Point3(0.500000, 1.000000, 0.000000),
+                Point3(1.000000, 1.000000, 0.000000), Point3(1.000000, 0.500000, 0.000000),
+                Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+                Point3(0.500000, 0.500000, 0.000000), Point3(0.500000, 0.000000, 0.000000),
+                Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+                Point3(1.000000, 0.500000, 0.000000), Point3(1.000000, 0.000000, 0.000000),
+                Point3(0.000000, 1.260000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.960000, 1.000000, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.960000, 1.000000, 0.000000),
+                Point3(1.920000, 1.260000, 0.000000), Point3(1.919999, 1.000000, 0.000000),
+                Point3(1.920000, 1.260000, 0.000000), Point3(0.960000, 1.000000, 0.000000),
+                Point3(0.000001, 1.520000, 0.000000), Point3(0.000000, 1.260000, 0.000000),
+                Point3(0.960000, 1.520000, 0.000000), Point3(0.960000, 1.260000, 0.000000),
+                Point3(0.960000, 1.520000, 0.000000), Point3(0.000000, 1.260000, 0.000000),
+                Point3(0.960000, 1.520000, 0.000000), Point3(0.960000, 1.260000, 0.000000),
+                Point3(1.920000, 1.520000, 0.000000), Point3(1.920000, 1.260000, 0.000000),
+                Point3(1.920000, 1.520000, 0.000000), Point3(0.960000, 1.260000, 0.000000) };
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedUvs.data(),
+            static_cast<int>(expectedUvs.size()),
+            uvData,
+            static_cast<int>(uvBuffer.GetNumberOfVertices())));
+        uvBuffer.Unlock();
+    }
+
+    // Render at time code 1 -> consolidation is updated.
+    renderItems.ClearAllRenderItems();
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        1,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    auto geom2 = GetRenderItemGeometry(renderItems.GetRenderItem(0), false);
+
+    {
+        auto pointsBuffer = geom2->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+        auto pointsData
+            = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedPoints
+            = { Point3(-22.412651, -2.047300, 0.000000),  Point3(-22.412651, -13.864553, 0.000000),
+                Point3(-10.205800, -13.864553, 0.000000), Point3(-10.205800, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, -13.864553, 0.000000),
+                Point3(2.001050, -13.864553, 0.000000),   Point3(2.001050, -2.047300, 0.000000),
+                Point3(-22.412651, 9.769953, 0.000000),   Point3(-22.412651, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, 9.769953, 0.000000),
+                Point3(-10.205800, 9.769953, 0.000000),   Point3(-10.205800, -2.047300, 0.000000),
+                Point3(2.001050, -2.047300, 0.000000),    Point3(2.001050, 9.769953, 0.000000),
+                Point3(20.388432, -0.029459, 17.045118),  Point3(18.441692, -2.428929, 15.279857),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(18.441692, -2.428929, 15.279857),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(27.735367, -4.065141, 14.428482),  Point3(25.788630, -6.464611, 12.663221),
+                Point3(27.735367, -4.065141, 14.428482),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(22.335169, 2.370011, 18.810379),   Point3(20.388432, -0.029459, 17.045118),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(20.388432, -0.029459, 17.045118),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(29.682106, -1.665672, 16.193743),  Point3(27.735367, -4.065141, 14.428482),
+                Point3(29.682106, -1.665672, 16.193743),  Point3(24.061899, -2.047300, 15.736800) };
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedPoints.data(),
+            static_cast<int>(expectedPoints.size()),
+            pointsData,
+            static_cast<int>(pointsBuffer.GetNumberOfVertices())));
+        pointsBuffer.Unlock();
+    }
+
+    {
+        auto normalsBuffer = geom2->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+        auto normalsData
+            = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedNormals
+            = { Point3(-22.412651, -2.047300, 0.000000),  Point3(-22.412651, -13.864553, 0.000000),
+                Point3(-10.205800, -13.864553, 0.000000), Point3(-10.205800, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, -13.864553, 0.000000),
+                Point3(2.001050, -13.864553, 0.000000),   Point3(2.001050, -2.047300, 0.000000),
+                Point3(-22.412651, 9.769953, 0.000000),   Point3(-22.412651, -2.047300, 0.000000),
+                Point3(-10.205800, -2.047300, 0.000000),  Point3(-10.205800, 9.769953, 0.000000),
+                Point3(-10.205800, 9.769953, 0.000000),   Point3(-10.205800, -2.047300, 0.000000),
+                Point3(2.001050, -2.047300, 0.000000),    Point3(2.001050, 9.769953, 0.000000),
+                Point3(20.388432, -0.029459, 17.045118),  Point3(18.441692, -2.428929, 15.279857),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(18.441692, -2.428929, 15.279857),
+                Point3(24.061899, -2.047300, 15.736800),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(27.735367, -4.065141, 14.428482),  Point3(25.788630, -6.464611, 12.663221),
+                Point3(27.735367, -4.065141, 14.428482),  Point3(22.115160, -4.446770, 13.971539),
+                Point3(22.335169, 2.370011, 18.810379),   Point3(20.388432, -0.029459, 17.045118),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(20.388432, -0.029459, 17.045118),
+                Point3(26.008638, 0.352170, 17.502062),   Point3(24.061899, -2.047300, 15.736800),
+                Point3(29.682106, -1.665672, 16.193743),  Point3(27.735367, -4.065141, 14.428482),
+                Point3(29.682106, -1.665672, 16.193743),  Point3(24.061899, -2.047300, 15.736800) };
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedNormals.data(),
+            static_cast<int>(expectedNormals.size()),
+            normalsData,
+            static_cast<int>(normalsBuffer.GetNumberOfVertices())));
+        normalsBuffer.Unlock();
+    }
+
+    {
+        auto uvBuffer = geom2->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+        auto uvData = reinterpret_cast<Point3*>(uvBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+        std::array<Point3, 40> expectedUvs
+            = { Point3(0.000000, 0.500000, 0.000000), Point3(0.000000, 1.000000, 0.000000),
+                Point3(0.500000, 1.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+                Point3(0.500000, 0.500000, 0.000000), Point3(0.500000, 1.000000, 0.000000),
+                Point3(1.000000, 1.000000, 0.000000), Point3(1.000000, 0.500000, 0.000000),
+                Point3(0.000000, 0.000000, 0.000000), Point3(0.000000, 0.500000, 0.000000),
+                Point3(0.500000, 0.500000, 0.000000), Point3(0.500000, 0.000000, 0.000000),
+                Point3(0.500000, 0.000000, 0.000000), Point3(0.500000, 0.500000, 0.000000),
+                Point3(1.000000, 0.500000, 0.000000), Point3(1.000000, 0.000000, 0.000000),
+                Point3(0.624336, 1.260000, 0.000000), Point3(0.624336, 1.351873, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.960000, 1.351873, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.624336, 1.351873, 0.000000),
+                Point3(0.960000, 1.260000, 0.000000), Point3(0.960000, 1.351873, 0.000000),
+                Point3(1.295664, 1.260000, 0.000000), Point3(1.295664, 1.351873, 0.000000),
+                Point3(1.295664, 1.260000, 0.000000), Point3(0.960000, 1.351873, 0.000000),
+                Point3(0.624336, 1.168127, 0.000000), Point3(0.624336, 1.260000, 0.000000),
+                Point3(0.960000, 1.168127, 0.000000), Point3(0.960000, 1.260000, 0.000000),
+                Point3(0.960000, 1.168127, 0.000000), Point3(0.624336, 1.260000, 0.000000),
+                Point3(0.960000, 1.168127, 0.000000), Point3(0.960000, 1.260000, 0.000000),
+                Point3(1.295664, 1.168127, 0.000000), Point3(1.295664, 1.260000, 0.000000),
+                Point3(1.295664, 1.168127, 0.000000), Point3(0.960000, 1.260000, 0.000000) };
+        EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+            expectedUvs.data(),
+            static_cast<int>(expectedUvs.size()),
+            uvData,
+            static_cast<int>(uvBuffer.GetNumberOfVertices())));
+        uvBuffer.Unlock();
+    }
+
+    renderItems.ClearAllRenderItems();
+}
+
+// Test consolidation when adding and removing prims from the render.
+TEST(Consolidation, BreakingModificationsPrimChanges)
+{
+    // Test with static and dynamic modes.
+    for (int i = 0; i < int(HdMaxConsolidator::Strategy::Off); ++i) {
+        HdMaxConsolidator::Config consolidationConfig;
+        consolidationConfig.strategy = static_cast<HdMaxConsolidator::Strategy>(i);
+        consolidationConfig.maxTriangles = 5000;
+        consolidationConfig.maxCellSize = 10000;
+        consolidationConfig.maxInstanceCount = 1000;
+        consolidationConfig.staticDelay = 0;
+
+        const auto stage = pxr::UsdStage::CreateInMemory();
+        auto       sphere1 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            stage, pxr::SdfPath("/sphere1"), pxr::TfToken("Sphere"));
+        auto cube1 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            stage, pxr::SdfPath("/cube1"), pxr::TfToken("Cube"));
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        // First render, consolidate.
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(192, GetTriCount(renderItems.GetRenderItem(0), false));
+        renderItems.ClearAllRenderItems();
+
+        // Add two cones... should not break the existing consolidated mesh just create a new one.
+        auto cone1 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            stage, pxr::SdfPath("/cone1"), pxr::TfToken("Cone"));
+        auto cone2 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomXformable>(
+            stage, pxr::SdfPath("/cone2"), pxr::TfToken("Cone"));
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(192, GetTriCount(renderItems.GetRenderItem(0), false));
+        EXPECT_EQ(60, GetTriCount(renderItems.GetRenderItem(1), false));
+        renderItems.ClearAllRenderItems();
+
+        // Hide the first sphere... should start over the consolidation, so we get one consolidated
+        // mesh with both cones and the cube.
+        const pxr::UsdGeomImageable imageableSphere1Prim(sphere1);
+        imageableSphere1Prim.GetVisibilityAttr().Set(pxr::UsdGeomTokens->invisible);
+
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(72, GetTriCount(renderItems.GetRenderItem(0), false));
+        renderItems.ClearAllRenderItems();
+
+        // Hide everything expect one of the cones...only a single prim left, shouldnt be
+        // consolidated
+        cube1.GetVisibilityAttr().Set(pxr::UsdGeomTokens->invisible);
+        cone1.GetVisibilityAttr().Set(pxr::UsdGeomTokens->invisible);
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(30, GetTriCount(renderItems.GetRenderItem(0), true)); // Unconsolidated
+        renderItems.ClearAllRenderItems();
+    }
+}
+
+// Test consolidation when changing material assignment.
+TEST(Consolidation, BreakingModificationsMaterialChanges)
+{
+    // Test with static and dynamic modes.
+    for (int i = 0; i < int(HdMaxConsolidator::Strategy::Off); ++i) {
+        HdMaxConsolidator::Config consolidationConfig;
+        consolidationConfig.strategy = static_cast<HdMaxConsolidator::Strategy>(i);
+        consolidationConfig.maxTriangles = 5000;
+        consolidationConfig.maxCellSize = 10000;
+        consolidationConfig.maxInstanceCount = 1000;
+        consolidationConfig.staticDelay = 0;
+
+        const auto stage = pxr::UsdStage::CreateInMemory();
+        auto       cube1 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomCube>(
+            stage, pxr::SdfPath("/cube1"), pxr::TfToken("Cube"));
+        auto cube2 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomCube>(
+            stage, pxr::SdfPath("/cube2"), pxr::TfToken("Cube"));
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        // Use display colors as nitrous materials..
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::USDDisplayColor, dummyTracker);
+        consolidationConfig.displaySettings = displaySettings;
+
+        // Render...consolidate both cubes, they share the same material (color).
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(0), false));
+        renderItems.ClearAllRenderItems();
+
+        // Change the color of one of the cubes.
+        pxr::VtVec3fArray blueColor = { { 0.0, 0.0, 1.0 } };
+        cube1.CreateDisplayColorAttr().Set(blueColor);
+        // Cube no longer should be consolidated together, as they differ in material.
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(0), true)); // Unconsolidated
+        EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true)); // Unconsolidated
+        renderItems.ClearAllRenderItems();
+
+        // Add a third cube, sharing the same color/material as cube1...they should get
+        // consolidated.
+        auto cube3 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomCube>(
+            stage, pxr::SdfPath("/cube3"), pxr::TfToken("Cube"));
+        cube3.CreateDisplayColorAttr().Set(blueColor);
+
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(24, GetTriCount(renderItems.GetRenderItem(0), false));
+        EXPECT_EQ(12, GetTriCount(renderItems.GetRenderItem(1), true)); // Unconsolidated
+        renderItems.ClearAllRenderItems();
+
+        // Change the color again and create a cone of the same color.
+        pxr::VtVec3fArray greenColor = { { 0.0, 1.0, 0.0 } };
+        cube1.CreateDisplayColorAttr().Set(greenColor);
+        auto cone1 = MaxUsd::FetchOrCreatePrim<pxr::UsdGeomCone>(
+            stage, pxr::SdfPath("/cone"), pxr::TfToken("Cone"));
+        cone1.CreateDisplayColorAttr().Set(greenColor);
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(3, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(
+            42,
+            GetTriCount(
+                renderItems.GetRenderItem(0), false)); // cube1 + cone1 - green - consolidated
+        EXPECT_EQ(
+            12,
+            GetTriCount(
+                renderItems.GetRenderItem(1), true)); // cube2 / default color unconsolidated
+        EXPECT_EQ(
+            12, GetTriCount(renderItems.GetRenderItem(2), true)); // cube3 / blue / unconsolidated
+        renderItems.ClearAllRenderItems();
+    }
+}
+
+// Test consolidation behavior on an animated instancer.
+TEST(Consolidation, BreakingModificationsInstancer)
+{
+    // Test with static and dynamic consolidation.
+    for (int i = 0; i < int(HdMaxConsolidator::Strategy::Off); ++i) {
+        HdMaxConsolidator::Config consolidationConfig;
+        consolidationConfig.strategy = static_cast<HdMaxConsolidator::Strategy>(i);
+        consolidationConfig.maxTriangles = 5000;
+        consolidationConfig.maxCellSize = 10000;
+        consolidationConfig.maxInstanceCount = 1000;
+        consolidationConfig.staticDelay = 0;
+
+        auto       testDataPath = GetTestDataPath();
+        const auto filePath = testDataPath.append("consolidation_animated_point_instancer.usda");
+        const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+        HdMaxEngine             testEngine;
+        MockRenderItemContainer renderItems;
+
+        // Use display colors as nitrous materials..
+        pxr::HdChangeTracker dummyTracker;
+        auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+        displaySettings.SetDisplayMode(HdMaxDisplaySettings::USDDisplayColor, dummyTracker);
+        consolidationConfig.displaySettings = displaySettings;
+
+        // File has a point instancer, 2 protos (cone and cube), with animated transforms (and
+        // count).
+
+        // Between timecode 0 and 1, only transforms are animated. Use the bounding box of the
+        // resulting consolidation To validate the new transform is taken into account. Then,
+        // between 1 and 2, more instances are added for each prototype.
+
+        // Time code 0 - consolidate!
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            0,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(
+            60,
+            GetTriCount(
+                renderItems.GetRenderItem(0), false)); // 2 cones, same color, consolidated...
+
+        // Custom box compare, math has changed across some usd versions (21.11 -> 22.11) and we
+        // cant be too precise in the comparison(epsilon 0.001).
+        auto boxesAreEquivalent = [](const Box3& box1, const Box3& box2) {
+            const float epsilon = 0.001f;
+            return abs(box1.pmax.x - box2.pmax.x) < epsilon
+                && abs(box1.pmax.y - box2.pmax.y) < epsilon
+                && abs(box1.pmax.z - box2.pmax.z) < epsilon
+                && abs(box1.pmin.x - box2.pmin.x) < epsilon
+                && abs(box1.pmin.y - box2.pmin.y) < epsilon
+                && abs(box1.pmin.z - box2.pmin.z) < epsilon;
+        };
+
+        auto expectedBbox0 = Box3 { { -1.f, 1.549f, -1.f }, { 3.5f, 3.45099998f, 3.5f } };
+
+        EXPECT_TRUE(
+            boxesAreEquivalent(expectedBbox0, GetBoundingBox(renderItems.GetRenderItem(0), false)));
+        // Cube only instanced once, so not consolidated.
+        // There is no exposed way to access the instancing data, but we can still know this is a
+        // instance render item and not a render item from consolidation by looking at the geometry,
+        // which will be null here in the case of instances.
+        EXPECT_EQ(nullptr, GetRenderItemGeometry(renderItems.GetRenderItem(1), false));
+        renderItems.ClearAllRenderItems();
+
+        // Timecode 1 - only transforms changed
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            1,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+        EXPECT_EQ(
+            60,
+            GetTriCount(
+                renderItems.GetRenderItem(0), false)); // 2 cones, same color, consolidated...
+        auto expectedBbox1 = Box3 { { -1.f, 1.54900002f, 0.f }, { 3.5f, 3.45099998f, 11.5f } };
+        EXPECT_TRUE(
+            boxesAreEquivalent(expectedBbox1, GetBoundingBox(renderItems.GetRenderItem(0), false)));
+        EXPECT_EQ(nullptr, GetRenderItemGeometry(renderItems.GetRenderItem(1), false));
+        renderItems.ClearAllRenderItems();
+
+        // Time code 2 - more instances added. Test that we get expected consolidated mesh size and
+        // bboxes. Order is non deterministic so use a map.
+        std::map<int, Box3> expectedSizeAndBbox;
+        expectedSizeAndBbox.insert({ 24, Box3 { { -1.f, -1.f, 0.f }, { 11.f, 11.f, 11.f } } });
+        expectedSizeAndBbox.insert(
+            { 90, Box3 { { -1.f, 1.54900002f, 0.f }, { 6.f, 5.95100021f, 11.5f } } });
+        std::map<int, Box3> actualSizeAndBbox;
+        TestRender(
+            stage,
+            testEngine,
+            renderItems,
+            2,
+            nullptr,
+            { pxr::HdReprTokens->smoothHull },
+            consolidationConfig);
+        EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+        actualSizeAndBbox.insert({ GetTriCount(renderItems.GetRenderItem(0), false),
+                                   GetBoundingBox(renderItems.GetRenderItem(0), false) });
+        actualSizeAndBbox.insert({ GetTriCount(renderItems.GetRenderItem(1), false),
+                                   GetBoundingBox(renderItems.GetRenderItem(1), false) });
+
+        EXPECT_TRUE(boxesAreEquivalent(actualSizeAndBbox[0], expectedSizeAndBbox[0]));
+        EXPECT_TRUE(boxesAreEquivalent(actualSizeAndBbox[1], expectedSizeAndBbox[1]));
+        renderItems.ClearAllRenderItems();
+    }
+}
+
+// Test disabled consolidation.
+TEST(Consolidation, Disabled)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_4_materials.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Off;
+    consolidationConfig.maxTriangles = 5000;
+    consolidationConfig.maxCellSize = 10000;
+    consolidationConfig.staticDelay = 0;
+    consolidationConfig.maxInstanceCount = 1000;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(10, renderItems.GetNumberOfRenderItems()); // All then objects are expected, as
+                                                         // consolidation is disabled.
+}
+
+TEST(Consolidation, Consolidate2BoxesWithBadPrimvarIndices)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_2_boxes_bad_primvar_indices.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire },
+        consolidationConfig);
+
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    // Shaded item...
+    const auto& shadedRenderItem = renderItems.GetRenderItem(0);
+    auto        shadedGeometry = GetRenderItemGeometry(shadedRenderItem, false);
+
+    ASSERT_NE(nullptr, shadedGeometry);
+    EXPECT_EQ(MaxSDK::Graphics::PrimitiveTriangleList, shadedGeometry->GetPrimitiveType());
+    EXPECT_EQ(4, shadedGeometry->GetVertexBufferCount());
+    EXPECT_TRUE(shadedGeometry->GetIndexBuffer().IsValid());
+
+    // Check normals, normals from the first box fall back to 0 on invalid data.
+    auto normalsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(48, normalsBuffer.GetNumberOfVertices());
+
+    const auto normalsData
+        = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    std::array<Point3, 48> expectedNormals
+        = { Point3(0.000000, 0.000000, -1.000000),   Point3(0.000000, 0.000000, -1.000000),
+            Point3(0.000000, 0.000000, -1.000000),   Point3(0.000000, 0.000000, -1.000000),
+            Point3(0.000000, 0.000000, 1.000000),    Point3(0.000000, 0.000000, 1.000000),
+            Point3(0.000000, 0.000000, 1.000000),    Point3(0.000000, 0.000000, 0.000000),
+            Point3(0.000000, -1.000000, 0.000000),   Point3(0.000000, -1.000000, 0.000000),
+            Point3(0.000000, -1.000000, 0.000000),   Point3(0.000000, -1.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000),    Point3(1.000000, 0.000000, 0.000000),
+            Point3(1.000000, 0.000000, 0.000000),    Point3(1.000000, 0.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000),    Point3(0.000000, 1.000000, 0.000000),
+            Point3(0.000000, 1.000000, 0.000000),    Point3(0.000000, 1.000000, 0.000000),
+            Point3(-1.000000, 0.000000, 0.000000),   Point3(0.000000, 0.000000, 0.000000),
+            Point3(-1.000000, 0.000000, 0.000000),   Point3(-1.000000, 0.000000, 0.000000),
+            Point3(-0.605790, -0.527004, -0.596058), Point3(-0.605790, -0.527004, -0.596058),
+            Point3(-0.605790, -0.527004, -0.596058), Point3(-0.605790, -0.527004, -0.596058),
+            Point3(0.605790, 0.527004, 0.596058),    Point3(0.605790, 0.527004, 0.596058),
+            Point3(0.605790, 0.527004, 0.596058),    Point3(0.605790, 0.527004, 0.596058),
+            Point3(0.375654, -0.849863, 0.369619),   Point3(0.375654, -0.849863, 0.369619),
+            Point3(0.375654, -0.849863, 0.369619),   Point3(0.375654, -0.849863, 0.369619),
+            Point3(0.701358, 0.000000, -0.712810),   Point3(0.701358, 0.000000, -0.712810),
+            Point3(0.701358, 0.000000, -0.712810),   Point3(0.701358, 0.000000, -0.712810),
+            Point3(-0.375654, 0.849863, -0.369619),  Point3(-0.375654, 0.849863, -0.369619),
+            Point3(-0.375654, 0.849863, -0.369619),  Point3(-0.375654, 0.849863, -0.369619),
+            Point3(-0.701358, 0.000000, 0.712810),   Point3(-0.701358, 0.000000, 0.712810),
+            Point3(-0.701358, 0.000000, 0.712810),   Point3(-0.701358, 0.000000, 0.712810) };
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedNormals.data(),
+        static_cast<int>(expectedNormals.size()),
+        normalsData,
+        static_cast<int>(normalsBuffer.GetNumberOfVertices())));
+
+    // Check uvs, uvs from the second box falls back to planar mapping (from points) on invalid
+    // data.
+    auto uvsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(48, uvsBuffer.GetNumberOfVertices());
+
+    std::array<Point3, 48> expectedUvs = {
+        Point3(1.000000, 1.000000, 0.000000),       Point3(1.000000, 0.000000, 0.000000),
+        Point3(0.000000, 0.000000, 0.000000),       Point3(0.000000, 1.000000, 0.000000),
+        Point3(0.000000, 1.000000, 0.000000),       Point3(1.000000, 1.000000, 0.000000),
+        Point3(1.000000, 0.000000, 0.000000),       Point3(0.000000, 0.000000, 0.000000),
+        Point3(0.000000, 1.000000, 0.000000),       Point3(1.000000, 1.000000, 0.000000),
+        Point3(1.000000, 0.000000, 0.000000),       Point3(0.000000, 0.000000, 0.000000),
+        Point3(0.000000, 1.000000, 0.000000),       Point3(1.000000, 1.000000, 0.000000),
+        Point3(1.000000, 0.000000, 0.000000),       Point3(0.000000, 0.000000, 0.000000),
+        Point3(0.000000, 1.000000, 0.000000),       Point3(1.000000, 1.000000, 0.000000),
+        Point3(1.000000, 0.000000, 0.000000),       Point3(0.000000, 0.000000, 0.000000),
+        Point3(0.000000, 1.000000, 0.000000),       Point3(1.000000, 1.000000, 0.000000),
+        Point3(1.000000, 0.000000, 0.000000),       Point3(0.000000, 0.000000, 0.000000),
+        Point3(1.00000000, 1.00000000, 0.00000000), Point3(1.00000000, 0.00000000, 0.00000000),
+        Point3(0.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 1.00000000, 0.00000000),
+        Point3(0.00000000, 1.00000000, 0.00000000), Point3(1.00000000, 1.00000000, 0.00000000),
+        Point3(1.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 1.00000000, 0.00000000),
+        Point3(0.00000000, 1.00000000, 0.00000000), Point3(1.00000000, 1.00000000, 0.00000000),
+        Point3(1.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 0.00000000, 0.00000000),
+        Point3(0.00000000, 1.00000000, 0.00000000), Point3(1.00000000, 1.00000000, 0.00000000),
+        Point3(1.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 0.00000000, 0.00000000),
+        Point3(0.00000000, 1.00000000, 0.00000000), Point3(1.00000000, 1.00000000, 0.00000000),
+        Point3(1.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 0.00000000, 0.00000000),
+        Point3(0.00000000, 1.00000000, 0.00000000), Point3(0.00000000, 1.00000000, 0.00000000),
+        Point3(1.00000000, 0.00000000, 0.00000000), Point3(0.00000000, 0.00000000, 0.00000000)
+    };
+    const auto uvsData
+        = reinterpret_cast<Point3*>(uvsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(Point3ArraysAreAlmostEqual(
+        expectedUvs.data(),
+        static_cast<int>(expectedUvs.size()),
+        uvsData,
+        static_cast<int>(uvsBuffer.GetNumberOfVertices())));
+}
+
+// Test consolidation of 2 boxes with only part of the geometry requiring consolidation :
+// Only one of the subsets in each of the boxes is bound to a material. So only
+// that subset is consolidated, the rest of the boxes' faces are using the
+// display color, which is different for each box.
+TEST(Consolidation, PartialSubsetsConsolidation)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("partial_subset_consolidation.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Expect 3 render items.
+    // 1 - A consolidated mesh, from the material bound subsets of each box.
+    // 2 - The rest of the faces (using the displayColor) from the first box.
+    // 2 - The rest of the faces (using the displayColor) from the second box.
+    ASSERT_EQ(3, renderItems.GetNumberOfRenderItems());
+
+    // Consolidated portion of the boxes...
+    const auto consolidatedGeom = GetRenderItemGeometry(renderItems.GetRenderItem(0), false);
+    const auto trianglesIndexBuffer = consolidatedGeom->GetIndexBuffer();
+    // Both top faces share the same material -> 2 quads -> 4 tris -> 12 indices.
+    EXPECT_EQ(12, trianglesIndexBuffer.GetNumberOfIndices());
+
+    // The rest of box 1...
+    const auto box1Geom = GetRenderItemGeometry(renderItems.GetRenderItem(1), true);
+    const auto box1TrianglesIndexBuffer = box1Geom->GetIndexBuffer();
+    EXPECT_EQ(
+        30, box1TrianglesIndexBuffer.GetNumberOfIndices()); // 5 quads -> 10 tris -> 30 indices.
+
+    // The rest of box 2...
+    const auto box2Geom = GetRenderItemGeometry(renderItems.GetRenderItem(2), true);
+    const auto box2TrianglesIndexBuffer = box2Geom->GetIndexBuffer();
+    EXPECT_EQ(
+        30, box2TrianglesIndexBuffer.GetNumberOfIndices()); // 5 quads -> 10 tris -> 30 indices.
+}
+
+// We had an issue when only part of a mesh's subsets were being consolidated - because vertex
+// buffers are shared across the subsets - we were only looking at the first subset's dirty state
+// when deciding to load the geometry into nitrous buffers. However, considering consolidation, it
+// is possible for subsets to have different dirty states. If the first subsets was being
+// consolidated, then we would never load the buffers, even though they were required by other
+// subsets. Now, we load the buffers if required by any of the subsets. The following test makes
+// sure this is done.
+TEST(Consolidation, PartialSubsetsConsolidationSecondSubsetDirty)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("partial_subset_consolidation_second_subset.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 100;
+    consolidationConfig.maxCellSize = 1000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    // Expect 4 render items.
+    // 1 - A consolidated mesh, from the material bound subsets of each box.
+    // 2,3 - The rest of the first box (one subset with a material, one for the displayColor)
+    // 4 - The rest of the second box (using the displayColor).
+    ASSERT_EQ(4, renderItems.GetNumberOfRenderItems());
+
+    // Consolidated portion of the boxes...
+    const auto consolidatedGeom = GetRenderItemGeometry(renderItems.GetRenderItem(0), false);
+    const auto consolidatedPointsBuffer
+        = consolidatedGeom->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_TRUE(consolidatedPointsBuffer.IsValid());
+
+    // Make sure the vertex buffers where loaded, even if the first subset of the mesh was
+    // consolidated.
+    for (int i = 1; i < renderItems.GetNumberOfRenderItems(); ++i) {
+        const auto geom = GetRenderItemGeometry(renderItems.GetRenderItem(i), true);
+        const auto vertexBuffer = geom->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+        EXPECT_TRUE(vertexBuffer.IsValid());
+    }
+}
+
+TEST(Consolidation, GeomSubsetInstanceSplit)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_6_instanced_boxes.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    consolidationConfig.maxCellSize = 72;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 71;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 50;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 36;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 35;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(3, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 24;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(3, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 23;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(6, renderItems.GetNumberOfRenderItems());
+
+    consolidationConfig.maxCellSize = 11; // All subsets have the same material, considered
+                                          // together, not enough space in a cell. No consolidation.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    // No consolidation can happen, end up with on render item per subset (instanced render items,
+    // containing 6 instances each)
+    consolidationConfig.maxCellSize = 3;
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+}
+
+// Validating the consolidation of a model which was causing a crash MAXX-70256 because
+// of instances with subsets.
+TEST(Consolidation, InstancedSubsetSplitCrash)
+{
+    auto testDataPath = GetTestDataPath();
+    // This file has a instances with subsets which split unevenly across several merged meshes,
+    // this scenario, in this specific cas, was causing a crash.
+    const auto filePath = testDataPath.append("consolidation_subset_crash.usdc");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+    consolidationConfig.maxCellSize = 200000;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(51, renderItems.GetNumberOfRenderItems());
+}
+
+// Testing that instances with subsets, which share materials with non-instanced geometry in the
+// scene, get consolidated correctly.
+TEST(Consolidation, InstancedSubsetMixed)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("consolidation_instance_subset_mixed.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    HdMaxConsolidator::Config consolidationConfig;
+    consolidationConfig.strategy = HdMaxConsolidator::Strategy::Static;
+    consolidationConfig.maxTriangles = 20000;
+    consolidationConfig.maxCellSize = 22;
+    consolidationConfig.maxInstanceCount = 1000;
+    consolidationConfig.staticDelay = 0;
+
+    pxr::HdChangeTracker dummyTracker;
+    auto&                displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, dummyTracker);
+    consolidationConfig.displaySettings = displaySettings;
+
+    // The scene is composed of 3 instanced boxes and 3 planes composed of 8 triangles.
+    // (3 * 12 triangles) + (3 * 8 triangles) = 60 total.
+
+    // The boxes have 2 subsets, one of 4 triangles, and one of 8, but have the same material in VP.
+    // Expect 3 render items : 3 X (1 box + 1 plane = 20 tris)
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull },
+        consolidationConfig);
+
+    ASSERT_EQ(3, renderItems.GetNumberOfRenderItems());
+
+    // First consolidation cell :
+    // 1 box + plane = 20 tris = 60 indices
+    const auto geom0 = GetRenderItemGeometry(renderItems.GetRenderItem(0), false);
+    const auto indexBuffer0 = geom0->GetIndexBuffer();
+    EXPECT_TRUE(indexBuffer0.IsValid());
+    EXPECT_EQ(60, indexBuffer0.GetNumberOfIndices());
+
+    // Second cell :
+    // 1 box + plane = 20 tris = 60 indices
+    const auto geom1 = GetRenderItemGeometry(renderItems.GetRenderItem(1), false);
+    const auto indexBuffer1 = geom1->GetIndexBuffer();
+    EXPECT_TRUE(indexBuffer1.IsValid());
+    EXPECT_EQ(60, indexBuffer1.GetNumberOfIndices());
+
+    // Third cell :
+    // 1 box + plane = 20 tris = 60 indices
+    const auto geom2 = GetRenderItemGeometry(renderItems.GetRenderItem(2), false);
+    const auto indexBuffer2 = geom2->GetIndexBuffer();
+    EXPECT_TRUE(indexBuffer2.IsValid());
+    EXPECT_EQ(60, indexBuffer2.GetNumberOfIndices());
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.FallbackRendering.test.cpp b/src/Tests/System/RenderDelegate.FallbackRendering.test.cpp
new file mode 100644
index 0000000..945ced5
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.FallbackRendering.test.cpp
@@ -0,0 +1,195 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <MaxUsd/Utilities/ScopeGuard.h>
+
+#include <maxscript/foundation/numbers.h>
+
+// Test that the primvar mapping configuration on a UsdStageObject is respected when
+// generating render meshes.
+TEST(FallbackRender, RenderMeshPrimvarMapping)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("unmappedpv.usda");
+
+    auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+
+    auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    BOOL needDelete;
+
+    // GetRenderMesh() returns a mesh for the overall stage, i.e. all the individual prim meshes are
+    // merged into a single mesh.
+    ViewMock viewMock {};
+    auto     renderMesh = stageObject->GetRenderMesh(0, node, viewMock, needDelete);
+
+    // Map1 is not used but it is mapped to "1". It is mapped, so it should still be loaded.
+    ASSERT_TRUE(renderMesh->mapSupport(1));
+    auto& map1 = renderMesh->Map(1);
+    EXPECT_EQ(map1.getNumVerts(), 48);
+    EXPECT_TRUE(map1.tv[0].Equals(Point3(1.f, 0.f, 0.f)));
+    // Foo and bar are unmapped, so they should not be found in the resulting render mesh.
+    for (int i = 2; i < MAX_MESHMAPS; ++i) // Uvs are from 1 to 100.
+    {
+        ASSERT_FALSE(renderMesh->mapSupport(i));
+    }
+
+    // Test mapping / unmapping and effect on render mesh.
+    stageObject->SetPrimvarChannelMapping(L"foo", Integer::intern(10));
+    stageObject->SetPrimvarChannelMapping(L"bar", Integer::intern(20));
+    stageObject->SetPrimvarChannelMapping(L"map1", &undefined);
+
+    renderMesh = stageObject->GetRenderMesh(0, node, viewMock, needDelete);
+
+    // Validate output render mesh.
+    ASSERT_FALSE(renderMesh->mapSupport(1));
+    ;
+    ASSERT_TRUE(renderMesh->mapSupport(10));
+    auto& map10 = renderMesh->Map(10);
+    ASSERT_EQ(map10.getNumVerts(), 24); // foo only present in one of the boxes, so only 24 verts
+    // Test some meaningful values to make sure we loaded the right uvs.
+    EXPECT_TRUE(map10.tv[0].Equals(Point3 {}));
+    EXPECT_TRUE(map10.tv[14].Equals(Point3(1.f, 1.f, 0.f)));
+
+    EXPECT_TRUE(renderMesh->mapSupport(20));
+    auto& map20 = renderMesh->Map(20);
+    EXPECT_EQ(map20.getNumVerts(), 24); // bar only present in one of the boxes, so only 24 verts
+    // Test some meaningful values to make sure we loaded the right uvs.
+    EXPECT_TRUE(map20.tv[0].Equals(Point3(0.65894926f, 0.23953691f, 0.f)));
+    EXPECT_TRUE(map20.tv[23].Equals(Point3(0.39848992f, 0.333660007f, 0.f)));
+
+    // Test mapping both foo and bar to the same channel.
+    stageObject->ClearMappedPrimvars();
+    stageObject->SetPrimvarChannelMapping(L"foo", Integer::intern(50));
+    stageObject->SetPrimvarChannelMapping(L"bar", Integer::intern(50));
+
+    renderMesh = stageObject->GetRenderMesh(0, node, viewMock, needDelete);
+    for (int i = 2; i < MAX_MESHMAPS; ++i) {
+        ASSERT_EQ(i == 50, renderMesh->mapSupport(i)); // Only channel 50 should be set.
+    }
+
+    auto& map50 = renderMesh->Map(50);
+    EXPECT_EQ(map50.getNumVerts(), 48);
+    // Test some meaningful values to make sure we loaded the right uvs.
+    EXPECT_TRUE(map50.tv[0].Equals(Point3(0.f, 0.f, 0.f)));
+    EXPECT_TRUE(map50.tv[47].Equals(Point3(0.398489833f, 0.333660007f, 0.f)));
+}
+
+TEST(FallbackRender, MultiRenderMeshPrimvarMapping)
+{
+    // Reset scene after test.
+    const auto resetGuard
+        = MaxUsd::MakeScopeGuard([]() {}, []() { GetCOREInterface()->FileReset(TRUE); });
+
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("unmappedpv.usda");
+
+    auto stageObject = static_cast<USDStageObject*>(
+        GetCOREInterface()->CreateInstance(GEOMOBJECT_CLASS_ID, STAGE_CLASS_ID));
+
+    auto node = GetCOREInterface()->CreateObjectNode(stageObject);
+    stageObject->SetRootLayer(filePath.generic_wstring().c_str(), L"/");
+
+    BOOL     needDelete;
+    ViewMock viewMock {};
+    auto     renderMesh1 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 0);
+    auto     renderMesh2 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 1);
+
+    // Map1 is not used but it is mapped to "1". Is is mapped so should still be loaded.
+    ASSERT_TRUE(renderMesh1->mapSupport(1));
+    auto& Mesh1_map1 = renderMesh1->Map(1);
+    EXPECT_TRUE(Mesh1_map1.tv[0].Equals(Point3(1.f, 0.f, 0.f)));
+    EXPECT_EQ(Mesh1_map1.getNumVerts(), 24);
+    auto& Mesh2_map1 = renderMesh2->Map(1);
+    EXPECT_EQ(Mesh2_map1.getNumVerts(), 24);
+    EXPECT_TRUE(Mesh2_map1.tv[0].Equals(Point3(1.f, 0.f, 0.f)));
+
+    // Foo and bar are unmapped, so they should not be found in the resulting render meshes.
+    ASSERT_TRUE(renderMesh2->mapSupport(1));
+    for (int i = 2; i < MAX_MESHMAPS; ++i) // Uvs are from 1 to 100.
+    {
+        ASSERT_FALSE(renderMesh1->mapSupport(i));
+        ASSERT_FALSE(renderMesh2->mapSupport(i));
+    }
+
+    // Test mapping / unmapping and effect on render meshes.
+    stageObject->SetPrimvarChannelMapping(L"foo", Integer::intern(10));
+    stageObject->SetPrimvarChannelMapping(L"bar", Integer::intern(20));
+    stageObject->SetPrimvarChannelMapping(L"map1", &undefined);
+
+    renderMesh1 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 0);
+    renderMesh2 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 1);
+
+    // Validate output render mesh 1
+    {
+        ASSERT_FALSE(renderMesh1->mapSupport(1));
+        ASSERT_FALSE(renderMesh1->mapSupport(20)); // bar not defined on the first box
+
+        ASSERT_TRUE(renderMesh1->mapSupport(10)); // foo is defined
+        auto& map10 = renderMesh1->Map(10);
+        ASSERT_EQ(map10.getNumVerts(), 24);
+        // Test some meaningful values to make sure we loaded the right uvs.
+        EXPECT_TRUE(map10.tv[0].Equals(Point3(0.f, 0.f, 0.f)));
+        EXPECT_TRUE(map10.tv[14].Equals(Point3(1.f, 1.f, 0.f)));
+    }
+
+    // Validate output render mesh 2
+    {
+        ASSERT_FALSE(renderMesh2->mapSupport(1));
+        ASSERT_FALSE(renderMesh2->mapSupport(10)); // foo is defined
+
+        EXPECT_TRUE(renderMesh2->mapSupport(20)); // bar not defined on second box
+        auto& map20 = renderMesh2->Map(20);
+        EXPECT_EQ(map20.getNumVerts(), 24);
+        // Test some meaningful values to make sure we loaded the right uvs.
+        EXPECT_TRUE(map20.tv[0].Equals(Point3(0.658949256f, 0.239536881f, 0.f)));
+        EXPECT_TRUE(map20.tv[23].Equals(Point3(0.39848992f, 0.333660007f, 0.f)));
+    }
+
+    // Test mapping both foo and bar to the same channel.
+    stageObject->ClearMappedPrimvars();
+    stageObject->SetPrimvarChannelMapping(L"foo", Integer::intern(50));
+    stageObject->SetPrimvarChannelMapping(L"bar", Integer::intern(50));
+
+    renderMesh1 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 0);
+    renderMesh2 = stageObject->GetMultipleRenderMesh(0, node, viewMock, needDelete, 1);
+    for (int i = 2; i < MAX_MESHMAPS; ++i) {
+        // Only channel 50 should be set.
+        ASSERT_EQ(i == 50, renderMesh1->mapSupport(i));
+        ASSERT_EQ(i == 50, renderMesh1->mapSupport(i));
+    }
+
+    // Validate bar on box 1
+    auto& map50_1 = renderMesh1->Map(50);
+    EXPECT_EQ(map50_1.getNumVerts(), 24);
+    EXPECT_TRUE(map50_1.tv[0].Equals(Point3(0.f, 0.f, 0.f)));
+    EXPECT_TRUE(map50_1.tv[14].Equals(Point3(1.f, 1.f, 0.f)));
+
+    // Validate foo on box 2
+    auto& map50_2 = renderMesh2->Map(50);
+    EXPECT_EQ(map50_2.getNumVerts(), 24);
+    EXPECT_TRUE(map50_2.tv[0].Equals(Point3(0.658949256f, 0.239536881f, 0.f)));
+    EXPECT_TRUE(map50_2.tv[23].Equals(Point3(0.398489833f, 0.333660007f, 0.f)));
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.General.test.cpp b/src/Tests/System/RenderDelegate.General.test.cpp
new file mode 100644
index 0000000..87a64cb
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.General.test.cpp
@@ -0,0 +1,625 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxColorMaterial.h>
+#include <RenderDelegate/HdMaxEngine.h>
+#include <RenderDelegate/HdMaxRenderData.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/base/gf/rotation.h>
+
+#include <Graphics/GeometryRenderItemHandle.h>
+#include <Graphics/SimpleRenderGeometry.h>
+#include <Graphics/StandardMaterialHandle.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+// Tests rendering a USD cube primitive to a RenderItem.
+TEST(USDRenderDelegateGeneralTest, SimpleCube)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    stage->DefinePrim(pxr::SdfPath("/cube"), pxr::TfToken("Cube"));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Render with to both wireframe and shaded items.
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire });
+
+    auto& renderDelegate = testEngine.GetRenderDelegate();
+    auto  renderData = renderDelegate->GetRenderDataIdMap();
+
+    ASSERT_EQ(1, renderData.size());
+    auto it = renderData.find(pxr::SdfPath("/cube"));
+    ASSERT_TRUE(it != renderData.end());
+
+    // Two render items : shaded + wireframe
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    // Make sure that the render items was correctly added to the container (shaded / wireframe)
+
+    // Shaded item...
+    auto& shadedRenderItem = renderItems.At(0);
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        shadedRenderItem.GetVisibilityGroup());
+
+    auto shadedGeometry = GetRenderItemGeometry(shadedRenderItem, true);
+    ASSERT_EQ(
+        shadedGeometry,
+        renderDelegate->GetRenderData(it->second)
+            .shadedSubsets[0]
+            .geometry->GetSimpleRenderGeometry());
+
+    ASSERT_NE(nullptr, shadedGeometry);
+    ASSERT_EQ(MaxSDK::Graphics::PrimitiveTriangleList, shadedGeometry->GetPrimitiveType());
+    ASSERT_EQ(4, shadedGeometry->GetVertexBufferCount());
+    ASSERT_TRUE(shadedGeometry->GetIndexBuffer().IsValid());
+
+    // Check that points are OK.
+    auto pointsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(8, pointsBuffer.GetNumberOfVertices());
+    std::array<Point3, 8> expectedPoints
+        = { Point3(1, 1, 1),    Point3(-1, 1, 1),  Point3(-1, -1, 1), Point3(1, -1, 1),
+            Point3(-1, -1, -1), Point3(-1, 1, -1), Point3(1, 1, -1),  Point3(1, -1, -1) };
+
+    const auto pointsData
+        = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedPoints.begin(), expectedPoints.end(), pointsData));
+
+    // Check that computed smooth normals are OK.
+    auto normalsBuffer = shadedGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(8, normalsBuffer.GetNumberOfVertices());
+    std::array<Point3, 8> expectedNormals = { Point3(0.577350259, 0.577350259, 0.577350259),
+                                              Point3(-0.577350259, 0.577350259, 0.577350259),
+                                              Point3(-0.577350259, -0.577350259, 0.577350259),
+                                              Point3(0.577350259, -0.577350259, 0.577350259),
+                                              Point3(-0.577350259, -0.577350259, -0.577350259),
+                                              Point3(-0.577350259, 0.577350259, -0.577350259),
+                                              Point3(0.577350259, 0.577350259, -0.577350259),
+                                              Point3(0.577350259, -0.577350259, -0.577350259) };
+    const auto            normalsdata
+        = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals.begin(), expectedNormals.end(), normalsdata));
+
+    // Check that indices are OK.
+    auto trianglesIndexBuffer = shadedGeometry->GetIndexBuffer();
+    EXPECT_EQ(36, trianglesIndexBuffer.GetNumberOfIndices());
+    std::array<int, 36> expectedIndices = { 0, 1, 2, 0, 2, 3, 4, 5, 6, 4, 6, 7, 0, 6, 5, 0, 5, 1,
+                                            4, 7, 3, 4, 3, 2, 0, 3, 7, 0, 7, 6, 4, 2, 1, 4, 1, 5 };
+    const auto          indicesData
+        = reinterpret_cast<int*>(trianglesIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedIndices.begin(), expectedIndices.end(), indicesData));
+
+    // Wireframe item...
+    auto& wireframeRenderItem = renderItems.At(1);
+    EXPECT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        wireframeRenderItem.GetVisibilityGroup());
+
+    const auto wireframeGeometry = GetRenderItemGeometry(wireframeRenderItem, true);
+    ASSERT_EQ(
+        wireframeGeometry,
+        renderDelegate->GetRenderData(it->second).wireframe.geometry->GetSimpleRenderGeometry());
+
+    ASSERT_NE(nullptr, wireframeGeometry);
+    ASSERT_EQ(MaxSDK::Graphics::PrimitiveLineList, wireframeGeometry->GetPrimitiveType());
+    ASSERT_EQ(3, wireframeGeometry->GetVertexBufferCount());
+    ASSERT_TRUE(wireframeGeometry->GetIndexBuffer().IsValid());
+
+    // The wireframe item should be using the same vertex buffers as the shaded geometry.
+    EXPECT_EQ(pointsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer));
+    EXPECT_EQ(normalsBuffer, wireframeGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer));
+
+    // Check that indices for the wire edges are OK.
+    auto edgeIndexBuffer = wireframeGeometry->GetIndexBuffer();
+    EXPECT_EQ(48, edgeIndexBuffer.GetNumberOfIndices());
+    std::array<int, 48> wireframeExpectedIndices
+        = { 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 6, 6, 5, 5, 1, 1, 0,
+            4, 7, 7, 3, 3, 2, 2, 4, 0, 3, 3, 7, 7, 6, 6, 0, 4, 2, 2, 1, 1, 5, 5, 4 };
+    const auto wireframeIndicesData
+        = reinterpret_cast<int*>(edgeIndexBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(
+        wireframeExpectedIndices.begin(), wireframeExpectedIndices.end(), wireframeIndicesData));
+}
+
+// Tests rendering animated geometry to a nitrous render items. Points and topology change over
+// time.
+TEST(USDRenderDelegateGeneralTest, AnimatedGeometry)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    auto mesh = pxr::UsdGeomMesh(stage->DefinePrim(pxr::SdfPath("/quad"), pxr::TfToken("Mesh")));
+
+    // Setup a quad - topology and vertices will both change over time.
+    pxr::VtVec3fArray points0;
+    points0.reserve(4);
+    points0.push_back({ 0, 2, 2 });
+    points0.push_back({ 0, 2, -2 });
+    points0.push_back({ 0, -2, -2 });
+    points0.push_back({ 0, -2, 2 });
+
+    pxr::VtVec3fArray points1;
+    points1.reserve(4);
+    points1.push_back({ 2, 2, 0 });
+    points1.push_back({ -2, 2, 0 });
+    points1.push_back({ -2, -2, 0 });
+    points1.push_back({ 2, -2, 0 });
+
+    auto pointsAttr = mesh.CreatePointsAttr();
+    pointsAttr.Set(points0, 0);
+    pointsAttr.Set(points1, 1);
+
+    // At timecode 0, a single quad.
+    pxr::VtIntArray faceVertexCount0 { 4 };
+    // At timecode 1, two triangles.
+    pxr::VtIntArray faceVertexCount1 { 3, 3 };
+
+    auto vertexCountAttr = mesh.CreateFaceVertexCountsAttr();
+    vertexCountAttr.Set(faceVertexCount0, 0);
+    vertexCountAttr.Set(faceVertexCount1, 1);
+
+    pxr::VtIntArray faceVertexIndices0 { 0, 1, 2, 3 };
+    pxr::VtIntArray faceVertexIndices1 { 0, 2, 3, 0, 1, 2 };
+
+    auto indicesAttr = mesh.CreateFaceVertexIndicesAttr();
+    indicesAttr.Set(faceVertexIndices0, 0);
+    indicesAttr.Set(faceVertexIndices1, 1);
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    auto& renderDelegate = testEngine.GetRenderDelegate();
+    auto  renderData = renderDelegate->GetRenderDataIdMap();
+
+    ASSERT_EQ(1, renderData.size());
+    auto it0 = renderData.find(pxr::SdfPath("/quad"));
+    ASSERT_TRUE(it0 != renderData.end());
+
+    // Make sure that the render item was correctly added to the container.
+    auto& usdRenderItem = renderItems.At(0);
+    auto  simpleRenderGeometry0 = GetRenderItemGeometry(usdRenderItem, true);
+
+    ASSERT_EQ(
+        simpleRenderGeometry0,
+        renderDelegate->GetRenderData(it0->second)
+            .shadedSubsets[0]
+            .geometry->GetSimpleRenderGeometry());
+
+    // Check that points are ok at timecode 0.
+    auto pointsBuffer = simpleRenderGeometry0->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(4, pointsBuffer.GetNumberOfVertices());
+    std::array<Point3, 4> expectedPoints = { MaxUsd::ToMax(points0[0]),
+                                             MaxUsd::ToMax(points0[1]),
+                                             MaxUsd::ToMax(points0[2]),
+                                             MaxUsd::ToMax(points0[3]) };
+    auto                  pointsData
+        = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedPoints.begin(), expectedPoints.end(), pointsData));
+    pointsBuffer.Unlock();
+
+    // Check that computed normals are ok at timecode 0.
+    auto normalsBuffer = simpleRenderGeometry0->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(4, normalsBuffer.GetNumberOfVertices());
+    std::array<Point3, 4> expectedNormals
+        = { Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0) };
+    auto normalsdata
+        = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals.begin(), expectedNormals.end(), normalsdata));
+    normalsBuffer.Unlock();
+
+    // Check that indices are OK at timecode 0.
+    auto indicesBuffer = simpleRenderGeometry0->GetIndexBuffer();
+    EXPECT_EQ(6, indicesBuffer.GetNumberOfIndices());
+    std::array<int, 6> expectedIndices = { 0, 1, 2, 0, 2, 3 };
+    indicesBuffer.Unlock();
+
+    auto indicesData
+        = reinterpret_cast<int*>(indicesBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedIndices.begin(), expectedIndices.end(), indicesData));
+
+    // Render again, this time at timecode 1.
+    renderItems.ClearAllRenderItems();
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto renderData1 = renderDelegate->GetRenderDataIdMap();
+
+    ASSERT_EQ(1, renderData.size());
+    auto it1 = renderData.find(pxr::SdfPath("/quad"));
+    ASSERT_TRUE(it1 != renderData.end());
+
+    // Should have updated the same graphic object.
+    ASSERT_EQ(
+        renderDelegate->GetRenderData(it0->second).shadedSubsets[0].renderItem,
+        renderDelegate->GetRenderData(it1->second).shadedSubsets[0].renderItem);
+
+    // Make sure that the render item was correctly added to the container.
+    auto& usdRenderItem1 = renderItems.At(0);
+    auto  simpleRenderGeometry1 = GetRenderItemGeometry(usdRenderItem1, true);
+    ASSERT_EQ(
+        simpleRenderGeometry1,
+        renderDelegate->GetRenderData(it1->second)
+            .shadedSubsets[0]
+            .geometry->GetSimpleRenderGeometry());
+
+    // Check that points are ok at timecode 1.
+    pointsBuffer = simpleRenderGeometry1->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(4, pointsBuffer.GetNumberOfVertices());
+    expectedPoints = { MaxUsd::ToMax(points1[0]),
+                       MaxUsd::ToMax(points1[1]),
+                       MaxUsd::ToMax(points1[2]),
+                       MaxUsd::ToMax(points1[3]) };
+    pointsData = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedPoints.begin(), expectedPoints.end(), pointsData));
+    pointsBuffer.Unlock();
+
+    // Check that computed normals are ok at timecode 1.
+    normalsBuffer = simpleRenderGeometry1->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(4, normalsBuffer.GetNumberOfVertices());
+    expectedNormals = { Point3(0, 0, 1), Point3(0, 0, 1), Point3(0, 0, 1), Point3(0, 0, 1) };
+    normalsdata = reinterpret_cast<Point3*>(normalsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals.begin(), expectedNormals.end(), normalsdata));
+    normalsBuffer.Unlock();
+
+    indicesBuffer = simpleRenderGeometry1->GetIndexBuffer();
+    EXPECT_EQ(6, indicesBuffer.GetNumberOfIndices());
+    expectedIndices = { 0, 2, 3, 0, 1, 2 };
+    indicesBuffer.Unlock();
+
+    indicesData = reinterpret_cast<int*>(indicesBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedIndices.begin(), expectedIndices.end(), indicesData));
+}
+
+// Tests USD prim visibility handling vs Nitrous render items.
+TEST(USDRenderDelegateGeneralTest, PrimVisibility)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto cube = stage->DefinePrim(pxr::SdfPath("/cube"), pxr::TfToken("Cube"));
+
+    // Setup animated visibility.
+    const pxr::UsdGeomImageable imageablePrim(cube);
+    imageablePrim.GetVisibilityAttr().Set(pxr::UsdGeomTokens->invisible, 0);
+    imageablePrim.GetVisibilityAttr().Set(pxr::UsdGeomTokens->inherited, 1);
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // Invisible primitives should not be returned as render items.
+    EXPECT_EQ(0, renderItems.GetNumberOfRenderItems());
+
+    TestRender(stage, testEngine, renderItems, 1);
+
+    // At time code 1, the prim is visible...
+    EXPECT_EQ(1, renderItems.GetNumberOfRenderItems());
+}
+
+// Tests that USD transforms are propagated correctly to nitrous render items.
+TEST(USDRenderDelegateGeneralTest, PrimTransforms)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    auto       cube = stage->DefinePrim(pxr::SdfPath("/cube"), pxr::TfToken("Cube"));
+
+    // Configure an animated transform for our cube.
+    pxr::UsdGeomXformable xformable(cube);
+    xformable.ClearXformOpOrder();
+
+    pxr::GfMatrix4d xform0;
+    xform0.SetTranslate({ 5, 5, 5 });
+    pxr::GfMatrix4d xform1;
+    xform1.SetTranslate({ 10, 10, 10 });
+
+    auto xformOp = xformable.AddTransformOp();
+    xformOp.Set(xform0, 0);
+    xformOp.Set(xform1, 1);
+
+    HdMaxEngine     testEngine;
+    pxr::GfMatrix4d rootTransform;
+    rootTransform.SetIdentity();
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Render at timecode 0
+    MockUpdateNodeContext nodeContext1 {};
+    testEngine.Render(
+        stage->GetPseudoRoot(),
+        rootTransform,
+        renderItems,
+        0,
+        MockUpdateDisplayContext {},
+        nodeContext1,
+        { pxr::HdReprTokens->smoothHull },
+        { pxr::HdTokens->geometry },
+        nullptr);
+
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+
+    auto expectMatricesEqual
+        = [](const MaxSDK::Graphics::Matrix44& m1, const MaxSDK::Graphics::Matrix44& m2) {
+              for (int i = 0; i < 4; ++i) {
+                  for (int j = 0; j < 4; ++j) {
+                      EXPECT_FLOAT_EQ(m1.m[i][j], m2.m[i][j]);
+                  }
+              }
+          };
+
+    auto& usdRenderItem0 = renderItems.At(0);
+
+    auto                       expectedMatrix = MaxUsd::ToMax(xform0);
+    MaxSDK::Graphics::Matrix44 renderItemOffset;
+    usdRenderItem0.GetOffsetMatrix(renderItemOffset);
+
+    // Check that our render item is transformed properly.
+    expectMatricesEqual(renderItemOffset, expectedMatrix);
+
+    // Render again, at timecode 1.
+    renderItems.ClearAllRenderItems();
+    MockUpdateNodeContext nodeContext2 {};
+    testEngine.Render(
+        stage->GetPseudoRoot(),
+        rootTransform,
+        renderItems,
+        1,
+        MockUpdateDisplayContext {},
+        nodeContext2,
+        { pxr::HdReprTokens->smoothHull },
+        { pxr::HdTokens->geometry },
+        nullptr);
+
+    auto& usdRenderItem1 = renderItems.At(0);
+
+    // Make sure it is still the same graphics objects, moved.
+    EXPECT_EQ(usdRenderItem0.GetPointer(), usdRenderItem1.GetPointer());
+    expectedMatrix = MaxUsd::ToMax(xform1);
+    usdRenderItem1.GetOffsetMatrix(renderItemOffset);
+
+    // Check that the new transform was applied.
+    expectMatricesEqual(renderItemOffset, expectedMatrix);
+
+    // Now test rendering with a root transform for the render.
+    rootTransform.SetTranslate({ 5, 5, 5 });
+    MockUpdateNodeContext nodeContext3 {};
+    testEngine.Render(
+        stage->GetPseudoRoot(),
+        rootTransform,
+        renderItems,
+        0,
+        MockUpdateDisplayContext {},
+        nodeContext3,
+        { pxr::HdReprTokens->smoothHull },
+        { pxr::HdTokens->geometry },
+        nullptr);
+    auto& usdRenderItemWithRootTransform = renderItems.At(0);
+    usdRenderItemWithRootTransform.GetOffsetMatrix(renderItemOffset);
+    expectedMatrix = MaxUsd::ToMax(rootTransform * xform0);
+    expectMatricesEqual(renderItemOffset, expectedMatrix);
+
+    // Test that the transform applied to the render item is the composed world transform in usd.
+    auto subCube = stage->DefinePrim(pxr::SdfPath("/cube/subcube"), pxr::TfToken("Cube"));
+    pxr::GfMatrix4d subXform;
+    subXform.SetRotate(pxr::GfRotation(pxr::GfVec3d(1, 1, 1), 45));
+
+    // Configure a transform for the sub geometry.
+    pxr::UsdGeomXformable subXformable(subCube);
+    subXformable.ClearXformOpOrder();
+    subXformable.AddTransformOp().Set(subXform, 0);
+    renderItems.ClearAllRenderItems();
+    MockUpdateNodeContext nodeContext4 {};
+    testEngine.Render(
+        stage->GetPseudoRoot(),
+        rootTransform,
+        renderItems,
+        0,
+        MockUpdateDisplayContext {},
+        nodeContext4,
+        { pxr::HdReprTokens->smoothHull },
+        { pxr::HdTokens->geometry },
+        nullptr);
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    auto& leafRenderItem = renderItems.At(1);
+    leafRenderItem.GetOffsetMatrix(renderItemOffset);
+    expectedMatrix = MaxUsd::ToMax(rootTransform * xform0 * subXform);
+    expectMatricesEqual(renderItemOffset, expectedMatrix);
+}
+
+// Tests the handling of the display color attribute in USD prims when rendering them
+// to Nitous render items. A standard material handle is used to represent the display color.
+TEST(USDRenderDelegateGeneralTest, PrimDisplayColorMaterial)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    auto       cube = stage->DefinePrim(pxr::SdfPath("/cube"), pxr::TfToken("Cube"));
+
+    // Setup animated display colors.
+    pxr::UsdGeomCube  cubeGeom = pxr::UsdGeomCube(cube);
+    pxr::VtVec3fArray color0 = { pxr::GfVec3f(1, 0, 0) };
+    pxr::VtVec3fArray color1 = { pxr::GfVec3f(0, 0, 1) };
+
+    auto colorAttr = cubeGeom.CreateDisplayColorAttr();
+    colorAttr.Set(color0, 0);
+    colorAttr.Set(color1, 1);
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    const auto& renderItem = renderItems.At(0);
+
+    // Check that the render item's material is based off the display color at timecode 0.
+    const auto& material1 = static_cast<const MaxSDK::Graphics::StandardMaterialHandle&>(
+        renderItem.GetCustomMaterial());
+
+    EXPECT_FLOAT_EQ(material1.GetDiffuse().r, color0[0][0] * HdMaxColorMaterial::DiffuseFactor);
+    EXPECT_FLOAT_EQ(material1.GetDiffuse().g, color0[0][1] * HdMaxColorMaterial::DiffuseFactor);
+    EXPECT_FLOAT_EQ(material1.GetDiffuse().b, color0[0][2] * HdMaxColorMaterial::DiffuseFactor);
+
+    EXPECT_FLOAT_EQ(material1.GetAmbient().r, color0[0][0] * HdMaxColorMaterial::AmbientFactor);
+    EXPECT_FLOAT_EQ(material1.GetAmbient().g, color0[0][1] * HdMaxColorMaterial::AmbientFactor);
+    EXPECT_FLOAT_EQ(material1.GetAmbient().b, color0[0][2] * HdMaxColorMaterial::AmbientFactor);
+
+    // Render again, at time code 1.
+    renderItems.ClearAllRenderItems();
+    TestRender(stage, testEngine, renderItems, 1);
+
+    const auto& renderItem2 = renderItems.At(0);
+    const auto& material2 = static_cast<const MaxSDK::Graphics::StandardMaterialHandle&>(
+        renderItem2.GetCustomMaterial());
+
+    // Now it should be based off the display color at timecode 1.
+    EXPECT_FLOAT_EQ(material2.GetDiffuse().r, color1[0][0] * 0.8f);
+    EXPECT_FLOAT_EQ(material2.GetDiffuse().g, color1[0][1] * 0.8f);
+    EXPECT_FLOAT_EQ(material2.GetDiffuse().b, color1[0][2] * 0.8f);
+
+    EXPECT_FLOAT_EQ(material2.GetAmbient().r, color1[0][0] * 0.2f);
+    EXPECT_FLOAT_EQ(material2.GetAmbient().g, color1[0][1] * 0.2f);
+    EXPECT_FLOAT_EQ(material2.GetAmbient().b, color1[0][2] * 0.2f);
+}
+
+// Tests that changing the root primitives from which the hydra engine renders from
+// works as expected. Typically this would happen when the engine is told to render a different
+// stage, in which case we need to build a new scene delegate under the hood.
+TEST(USDRenderDelegateGeneralTest, RenderRootChange)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    auto       cube = stage->DefinePrim(pxr::SdfPath("/cube"), pxr::TfToken("Cube"));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    auto renderData1 = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+    ASSERT_EQ(1, renderData1.size());
+    auto it1 = renderData1.find(pxr::SdfPath("/cube"));
+    ASSERT_TRUE(it1 != renderData1.end());
+
+    // Create a new stage, and render it from the same engine.
+    const auto newStage = pxr::UsdStage::CreateInMemory();
+    auto       sphere = newStage->DefinePrim(pxr::SdfPath("/sphere"), pxr::TfToken("Sphere"));
+
+    // Now render the sphere, part of a different stage.
+    renderItems.ClearAllRenderItems();
+    TestRender(newStage, testEngine, renderItems, 0);
+    auto renderData2 = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+
+    ASSERT_EQ(1, renderData2.size());
+    auto it2 = renderData2.find(pxr::SdfPath("/sphere"));
+    ASSERT_TRUE(it2 != renderData2.end());
+}
+
+TEST(USDRenderDelegateGeneralTest, UsdGeomSubsets_6_subsets_6_materials)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("box_6_subsets_materials.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // Box has 6 faces, 6 usd geom subsets, 6 materials, expect 6 render items.
+    EXPECT_EQ(6, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 6; i++) {
+        const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(i));
+        const auto indexBuffer = simpleRenderGeometry->GetIndexBuffer();
+        EXPECT_EQ(6, indexBuffer.GetNumberOfIndices());
+    }
+}
+
+TEST(USDRenderDelegateGeneralTest, UsdGeomSubsets_6_subsets_3_materials)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("box_3_subsets_materials.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // Box has 6 faces, 6 usd geom subsets, but only 3 materials bound, so expect 3 render items.
+    EXPECT_EQ(3, renderItems.GetNumberOfRenderItems());
+    for (int i = 0; i < 3; i++) {
+        const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(i));
+        const auto indexBuffer = simpleRenderGeometry->GetIndexBuffer();
+        EXPECT_EQ(12, indexBuffer.GetNumberOfIndices());
+    }
+}
+
+TEST(USDRenderDelegateGeneralTest, UsdGeomSubsets_RemainingFaces)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("geomSubsets_remaining_faces_sample.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // Box has one subset with a bound material. Other faces have no material bound.
+    EXPECT_EQ(2, renderItems.GetNumberOfRenderItems());
+
+    auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+    auto indexBuffer = simpleRenderGeometry->GetIndexBuffer();
+    EXPECT_EQ(30, indexBuffer.GetNumberOfIndices());
+
+    simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(1));
+    indexBuffer = simpleRenderGeometry->GetIndexBuffer();
+    EXPECT_EQ(6, indexBuffer.GetNumberOfIndices());
+}
+
+// Test that any referenced alembic files are correctly loaded.
+TEST(USDRenderDelegateGeneralTest, AlembicSupport)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("referencing_abc.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    TestRender(
+        stage,
+        testEngine,
+        renderItems,
+        0,
+        nullptr,
+        { pxr::HdReprTokens->smoothHull, pxr::HdReprTokens->wire });
+
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    // Validate that we have some geometry loaded, high level is sufficient,
+    // alembic geometry is not handled differently than any ot
+    const auto shadedGeometry = GetRenderItemGeometry(renderItems.At(0));
+    const auto indexBuffer1 = shadedGeometry->GetIndexBuffer();
+    EXPECT_EQ(36, indexBuffer1.GetNumberOfIndices());
+
+    const auto wireGeometry = GetRenderItemGeometry(renderItems.At(1));
+    const auto indexBuffer2 = wireGeometry->GetIndexBuffer();
+    EXPECT_EQ(48, indexBuffer2.GetNumberOfIndices());
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.PrimvarsToNitrous.test.cpp b/src/Tests/System/RenderDelegate.PrimvarsToNitrous.test.cpp
new file mode 100644
index 0000000..67745ab
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.PrimvarsToNitrous.test.cpp
@@ -0,0 +1,540 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxEngine.h>
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <Graphics/GeometryRenderItemHandle.h>
+
+TEST(PrimvarsToNitrous, NormalsFaceVaryingInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("cube_normals_face_varying.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto       mesh
+        = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/cube_normals_face_varying/Box001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are not using a shared layout, because normals are face varying.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(24, pointsBuffer.GetNumberOfVertices());
+
+    auto normalsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(24, normalsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedNormals0
+        = { Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1),
+            Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),
+            Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0),
+            Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),
+            Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),
+            Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0) };
+    const auto normalData0
+        = reinterpret_cast<Point3*>(normalsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals0.begin(), expectedNormals0.end(), normalData0));
+    normalsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto normalsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(24, normalsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedNormals1
+        = { Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),
+            Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1),
+            Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),
+            Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0),
+            Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0),
+            Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0) };
+    const auto normalData1
+        = reinterpret_cast<Point3*>(normalsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals1.begin(), expectedNormals1.end(), normalData1));
+    normalsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, NormalsUniformInterp)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("cube_normals_uniform.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto       mesh
+        = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/cube_normals_uniform/Box001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are not using a shared layout, because normals are face varying.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(24, pointsBuffer.GetNumberOfVertices());
+
+    auto normalsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(24, normalsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedNormals0
+        = { Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1),
+            Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),
+            Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0),
+            Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),
+            Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),
+            Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0) };
+    const auto normalData0
+        = reinterpret_cast<Point3*>(normalsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals0.begin(), expectedNormals0.end(), normalData0));
+    normalsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto normalsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(24, normalsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedNormals1
+        = { Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),  Point3(0, 0, 1),
+            Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1), Point3(0, 0, -1),
+            Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),  Point3(0, 1, 0),
+            Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0), Point3(-1, 0, 0),
+            Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0), Point3(0, -1, 0),
+            Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0),  Point3(1, 0, 0) };
+    const auto normalData1
+        = reinterpret_cast<Point3*>(normalsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals1.begin(), expectedNormals1.end(), normalData1));
+    normalsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, NormalsVertexInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("sphere_normals_vertex.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto       mesh
+        = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/sphere_normals_vertex/Sphere001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Points can use shared layout, as normals can also be shared per vertex.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(6, pointsBuffer.GetNumberOfVertices());
+
+    auto normalsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(6, normalsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 6> expectedNormals0 = { Point3(2.4646326e-8f, 0.f, 1.f),
+                                               Point3(-4.9292645e-8f, 1.f, -2.4646322e-8f),
+                                               Point3(-1, 0, 0),
+                                               Point3(0.f, -1.f, -2.4646326e-8f),
+                                               Point3(1.f, 9.85853e-8f, -2.4646326e-8f),
+                                               Point3(2.4646326e-8f, 0.f, -1.f) };
+    const auto            normalData0
+        = reinterpret_cast<Point3*>(normalsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals0.begin(), expectedNormals0.end(), normalData0));
+    normalsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    // Make sure that the render item was correctly added to the container.
+    auto&                                             usdRenderItem1 = renderItems.At(0);
+    const MaxSDK::Graphics::GeometryRenderItemHandle& geometryRenderItem1
+        = static_cast<const MaxSDK::Graphics::GeometryRenderItemHandle&>(
+            usdRenderItem1.GetDecoratedRenderItem());
+    const auto iRenderGeometry1 = geometryRenderItem1.GetRenderGeometry();
+
+    auto normalsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(6, normalsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 6> expectedNormals1 = { Point3(-2.4646326e-8f, 0.f, -1.f),
+                                               Point3(4.9292645e-8f, -1.f, 2.4646322e-8f),
+                                               Point3(1, 0, 0),
+                                               Point3(0.f, 1.f, 2.4646326e-8f),
+                                               Point3(-1.f, -9.85853e-8f, 2.4646326e-8f),
+                                               Point3(-2.4646326e-8f, 0.f, 1.f) };
+    const auto            normalData1
+        = reinterpret_cast<Point3*>(normalsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals1.begin(), expectedNormals1.end(), normalData1));
+    normalsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, NormalsConstantInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("plane_normals_constant.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto       mesh
+        = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/plane_normals_constant/Plane001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Points can use shared layout, as normals can also be shared per vertex.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(9, pointsBuffer.GetNumberOfVertices());
+
+    auto normalsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(9, normalsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 9> expectedNormals0;
+    std::fill(expectedNormals0.begin(), expectedNormals0.end(), Point3(0.f, 0.f, 1.f));
+    const auto normalData0
+        = reinterpret_cast<Point3*>(normalsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals0.begin(), expectedNormals0.end(), normalData0));
+    normalsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto normalsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer);
+    EXPECT_EQ(9, normalsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 9> expectedNormals1;
+    std::fill(expectedNormals1.begin(), expectedNormals1.end(), Point3(0.f, 0.f, -1.f));
+    const auto normalData1
+        = reinterpret_cast<Point3*>(normalsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedNormals1.begin(), expectedNormals1.end(), normalData1));
+    normalsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, UvsFaceVaryingInterp)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("cube_uv_face_varying.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are not using a shared layout, because uvs are face varying.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(24, pointsBuffer.GetNumberOfVertices());
+
+    auto uvBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(24, uvBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedUvs0
+        = { Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(0, 0, 0),
+            Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0),
+            Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0),
+            Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0),
+            Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0) };
+    std::transform(expectedUvs0.begin(), expectedUvs0.end(), expectedUvs0.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+
+    const auto uvData0
+        = reinterpret_cast<Point3*>(uvBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs0.begin(), expectedUvs0.end(), uvData0));
+    uvBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto uvsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(24, uvsBuffer1.GetNumberOfVertices());
+    std::array<Point3, 24> expectedUvs1
+        = { Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(1, 1, 0),
+            Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0),
+            Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0),
+            Point3(1, 0, 0), Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0),
+            Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(1, 0, 0) };
+    std::transform(expectedUvs1.begin(), expectedUvs1.end(), expectedUvs1.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+
+    const auto uvData1
+        = reinterpret_cast<Point3*>(uvsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs1.begin(), expectedUvs1.end(), uvData1));
+    uvsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, UvsUniformInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("cube_uv_uniform.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto mesh = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/cube_uv_uniform/Box001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are not using a shared layout, because uvs are face varying.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(24, pointsBuffer.GetNumberOfVertices());
+
+    auto uvsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(24, uvsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedUvs0
+        = { Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0),
+            Point3(1, 1, 0), Point3(1, 1, 0), Point3(1, 1, 0), Point3(0, 1, 0), Point3(0, 1, 0),
+            Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0), Point3(0, 0, 0), Point3(0, 0, 0),
+            Point3(0, 0, 0), Point3(0, 0, 0), Point3(0, 0, 0), Point3(0, 0, 0), Point3(0, 0, 0),
+            Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 0, 0) };
+
+    std::transform(expectedUvs0.begin(), expectedUvs0.end(), expectedUvs0.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+    const auto uvData0
+        = reinterpret_cast<Point3*>(uvsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs0.begin(), expectedUvs0.end(), uvData0));
+    uvsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto uvsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(24, uvsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 24> expectedUvs1
+        = { Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 0, 0),
+            Point3(0, 0, 0), Point3(0, 0, 0), Point3(0, 0, 0), Point3(1, 0, 0), Point3(1, 0, 0),
+            Point3(1, 0, 0), Point3(1, 0, 0), Point3(1, 1, 0), Point3(1, 1, 0), Point3(1, 1, 0),
+            Point3(1, 1, 0), Point3(1, 1, 0), Point3(1, 1, 0), Point3(1, 1, 0), Point3(1, 1, 0),
+            Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 1, 0), Point3(0, 1, 0) };
+
+    std::transform(expectedUvs1.begin(), expectedUvs1.end(), expectedUvs1.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+    const auto uvData1
+        = reinterpret_cast<Point3*>(uvsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs1.begin(), expectedUvs1.end(), uvData1));
+    uvsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, UvsVertexInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("sphere_uv_vertex.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto mesh = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/sphere_uv_vertex/Sphere001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Points can use shared layout, as uvs can also be shared per vertex.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(6, pointsBuffer.GetNumberOfVertices());
+
+    auto uvsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(6, uvsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 6> expectedUvs0
+        = { Point3(0, 1, 0),         Point3(0.25f, 1.f, 0.f), Point3(0.5f, 1.f, 0.f),
+            Point3(0.75f, 1.f, 0.f), Point3(0.f, 0.5f, 0.f),  Point3(0.25f, 0.5f, 0.f) };
+    std::transform(expectedUvs0.begin(), expectedUvs0.end(), expectedUvs0.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+    const auto uvData0
+        = reinterpret_cast<Point3*>(uvsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs0.begin(), expectedUvs0.end(), uvData0));
+    uvsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto uvsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(6, uvsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 6> expectedUvs1
+        = { Point3(1, 0, 0),         Point3(0.75f, 0.f, 0.f), Point3(0.5f, 0.f, 0.f),
+            Point3(0.25f, 0.f, 0.f), Point3(1.f, 0.5f, 0.f),  Point3(0.75f, 0.5f, 0.f) };
+    std::transform(expectedUvs1.begin(), expectedUvs1.end(), expectedUvs1.begin(), [](Point3& p) {
+        return Point3(p.x, 1 - p.y, p.z);
+    });
+    const auto uvData1
+        = reinterpret_cast<Point3*>(uvsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs1.begin(), expectedUvs1.end(), uvData1));
+    uvsBuffer1.Unlock();
+}
+
+TEST(PrimvarsToNitrous, UvsConstantInterp)
+{
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("plane_uv_constant.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+    auto mesh = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/plane_uv_constant/Plane001")));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    // Timecode 0
+    TestRender(stage, testEngine, renderItems, 0);
+
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Points can use shared layout, as uvs can also be shared per vertex.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    EXPECT_EQ(9, pointsBuffer.GetNumberOfVertices());
+
+    auto uvsBuffer0 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(9, uvsBuffer0.GetNumberOfVertices());
+
+    std::array<Point3, 9> expectedUvs0;
+    std::fill(expectedUvs0.begin(), expectedUvs0.end(), Point3(0.f, 0.f, 0.f));
+    const auto uvData0
+        = reinterpret_cast<Point3*>(uvsBuffer0.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs0.begin(), expectedUvs0.end(), uvData0));
+    uvsBuffer0.Unlock();
+
+    // Time code 1
+    TestRender(stage, testEngine, renderItems, 1);
+
+    auto uvsBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    EXPECT_EQ(9, uvsBuffer1.GetNumberOfVertices());
+
+    std::array<Point3, 9> expectedUvs1;
+    std::fill(expectedUvs1.begin(), expectedUvs1.end(), Point3(1.f, 1.f, 0.f));
+    const auto uvData1
+        = reinterpret_cast<Point3*>(uvsBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    EXPECT_TRUE(std::equal(expectedUvs1.begin(), expectedUvs1.end(), uvData1));
+    uvsBuffer1.Unlock();
+}
+
+// Tests the code figuring out what primvar to use for the UVs.
+TEST(PrimvarsToNitrous, UvsNonStandardPrimvarName)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("non_standard_uv.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // First material has the uv varname as value.
+    // token inputs:varname = "bar"
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+    auto       uvBuffer1 = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    const auto uvData1
+        = reinterpret_cast<Point3*>(uvBuffer1.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    // Test any meaningful value, to make sure we selected the right primvar as UVs.
+    EXPECT_TRUE(uvData1[4] == Point3(-0.26999992f, 1.f, 0.f));
+    uvBuffer1.Unlock();
+
+    // token inputs:varname.connect = </non_standard_uv/Materials/Material__26.inputs:frame:foo>
+    const auto simpleRenderGeometry2 = GetRenderItemGeometry(renderItems.At(1));
+    auto       uvBuffer2 = simpleRenderGeometry2->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    const auto uvData2
+        = reinterpret_cast<Point3*>(uvBuffer2.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    // Test any meaningful value, to make sure we selected the right primvar as UVs.
+    EXPECT_TRUE(uvData2[4] == Point3(-0.15f, 1.f, 0.f));
+    uvBuffer2.Unlock();
+}
+
+TEST(PrimvarsToNitrous, ChangeVertexLayout)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("sphere_edit_interp.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are using a shared layout, nothing prevents it.
+    const auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    ASSERT_EQ(6, pointsBuffer.GetNumberOfVertices());
+
+    // Now we are going to change the interpolation scheme of the displayColor primvar.
+    // We expect the points vertex buffer to be updated, indeed, we can no longer be
+    // sharing vertices given the interpolation scheme of displayColor.
+
+    auto mesh = pxr::UsdGeomMesh(stage->GetPrimAtPath(pxr::SdfPath("/Sphere001")));
+    auto displayColorPv = mesh.GetDisplayColorPrimvar();
+    displayColorPv.SetInterpolation(pxr::TfToken("uniform"));
+    const pxr::VtVec3fArray uniformValues
+        = { { 0, 0, 1 }, { 1, 0, 0 }, { 0, 1, 0 }, { 1, 1, 0 }, { 0, 1, 1 }, { 1, 1, 1 } };
+    displayColorPv.Set(uniformValues);
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    const auto simpleRenderGeometryAfterChange = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are no longer using a shared layout.
+    const auto pointsBufferAfterChange
+        = simpleRenderGeometryAfterChange->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    ASSERT_EQ(24, pointsBufferAfterChange.GetNumberOfVertices());
+}
+
+TEST(PrimvarsToNitrous, UvsFallback)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("box_no_uvs.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    TestRender(stage, testEngine, renderItems, 0);
+    const auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check that points are using a shared layout, nothing prevents it.
+    auto pointsBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer);
+    ASSERT_EQ(8, pointsBuffer.GetNumberOfVertices());
+
+    auto uvBuffer = simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer);
+    ASSERT_EQ(8, uvBuffer.GetNumberOfVertices());
+
+    const auto uvData = reinterpret_cast<Point3*>(uvBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+    const auto pointData
+        = reinterpret_cast<Point3*>(pointsBuffer.Lock(0, 0, MaxSDK::Graphics::ReadAcess));
+
+    // Fallback, points directly set as UVs, simple planar mapping.
+    EXPECT_TRUE(std::equal(uvData, uvData + uvBuffer.GetNumberOfVertices(), pointData));
+    uvBuffer.Unlock();
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.ViewportDisplayOptions.test.cpp b/src/Tests/System/RenderDelegate.ViewportDisplayOptions.test.cpp
new file mode 100644
index 0000000..68b078f
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.ViewportDisplayOptions.test.cpp
@@ -0,0 +1,130 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxColorMaterial.h>
+#include <RenderDelegate/HdMaxEngine.h>
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <Graphics/GeometryRenderItemHandle.h>
+
+TEST(ViewportDisplayOptions, MaterialAndPerformance)
+{
+    // Currently testing the performance mode option and the material option
+    // together because both can result in changes on the viewport material.
+
+    auto testDataPath = GetTestDataPath();
+
+    const auto filePath = testDataPath.append("box_sample.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    auto expectColorsEqual = [](const AColor& a, const AColor& b) {
+        EXPECT_FLOAT_EQ(a.r, b.r);
+        EXPECT_FLOAT_EQ(a.g, b.g);
+        EXPECT_FLOAT_EQ(a.b, b.b);
+    };
+
+    HdMaxEngine                      testEngine;
+    MockRenderItemDecoratorContainer renderItems;
+    MultiMtl*                        multiMat = NewEmptyMultiMtl();
+
+    // Test display mode : USD Preview Surface.
+    auto& displaySettings = testEngine.GetRenderDelegate()->GetDisplaySettings();
+    displaySettings.SetDisplayMode(
+        HdMaxDisplaySettings::USDPreviewSurface, testEngine.GetChangeTracker());
+    auto wireColor = Color(1, 0, 0);
+
+    TestRender(stage, testEngine, renderItems, 0, multiMat);
+
+    auto simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check points valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer).IsValid());
+    // Check normals valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer).IsValid());
+    // Check uvs valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer).IsValid());
+    // Check multi-material not populated.
+    EXPECT_EQ(0, multiMat->NumSubMtls());
+
+    // Check the nitrous material. These are hard to inspect, but there are 2 cases, either
+    // a color is displayed, in which case a StandardMaterialHandle would have been used,
+    // or the nitrous handle was converted from a Mtl* and it is just a BaseMaterialHandle.
+    // GetCustomMaterial() returns a new BaseMaterialHandle and just sets the pointer, so we
+    // can't dynamic cast to check the type. Instead, assume a StandardMaterialHandle and look
+    // at the diffuse color. If all white, we can assume the pointer wasn't actual from a
+    // StandardMaterialHandle. This is what we expect here, as materials are enabled and displayed.
+    auto                                     customMaterial = renderItems.At(0).GetCustomMaterial();
+    MaxSDK::Graphics::StandardMaterialHandle stdMaterialHandle;
+    stdMaterialHandle.SetPointer(customMaterial.GetPointer());
+    auto diffuseColor = stdMaterialHandle.GetDiffuse();
+    auto expectedDiffuseColor = AColor(1.0, 1.0, 1.0); // Expect color not set.
+    expectColorsEqual(diffuseColor, expectedDiffuseColor);
+    auto ambiantColor = stdMaterialHandle.GetAmbient();
+    auto expectedAmbientColor = AColor(1.0, 1.0, 1.0); // Expect color not set.
+    expectColorsEqual(ambiantColor, expectedAmbientColor);
+
+    // Test display mode : USD Display Colors.
+    displaySettings.SetDisplayMode(
+        HdMaxDisplaySettings::USDDisplayColor, testEngine.GetChangeTracker());
+    TestRender(stage, testEngine, renderItems, 0, multiMat);
+
+    simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check points valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer).IsValid());
+    // Check normals valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer).IsValid());
+    // Check uvs not used.
+    EXPECT_FALSE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer).IsValid());
+    // Check multimaterial not populated.
+    EXPECT_EQ(0, multiMat->NumSubMtls());
+    // Expecting a standard material, to represent the USD displayColor.
+    customMaterial = renderItems.At(0).GetCustomMaterial();
+    stdMaterialHandle.SetPointer(customMaterial.GetPointer());
+    diffuseColor = stdMaterialHandle.GetDiffuse();
+    expectedDiffuseColor = HdMaxColorMaterial::GetDiffuseColor(0.6, 0.89411765, 0.8392157);
+    expectColorsEqual(diffuseColor, expectedDiffuseColor);
+    ambiantColor = stdMaterialHandle.GetAmbient();
+    expectedAmbientColor = HdMaxColorMaterial::GetAmbientColor(0.6, 0.89411765, 0.8392157);
+    expectColorsEqual(ambiantColor, expectedAmbientColor);
+
+    // Test display mode : 3dsMax Wire Color.
+    displaySettings.SetDisplayMode(HdMaxDisplaySettings::WireColor, testEngine.GetChangeTracker());
+    displaySettings.SetWireColor(wireColor, testEngine.GetChangeTracker());
+    TestRender(stage, testEngine, renderItems, 0, multiMat);
+
+    simpleRenderGeometry = GetRenderItemGeometry(renderItems.At(0));
+
+    // Check points valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::PointsBuffer).IsValid());
+    // Check normals valid.
+    EXPECT_TRUE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::NormalsBuffer).IsValid());
+    // Check uvs not used.
+    EXPECT_FALSE(simpleRenderGeometry->GetVertexBuffer(HdMaxRenderData::UvsBuffer).IsValid());
+    // Check multimaterial not populated.
+    EXPECT_EQ(0, multiMat->NumSubMtls());
+
+    customMaterial = renderItems.At(0).GetCustomMaterial();
+    stdMaterialHandle.SetPointer(customMaterial.GetPointer());
+    diffuseColor = stdMaterialHandle.GetDiffuse();
+    expectedDiffuseColor = AColor(1.0 * 0.8, 0.0, 0.0);
+    expectColorsEqual(diffuseColor, expectedDiffuseColor);
+    ambiantColor = stdMaterialHandle.GetAmbient();
+    expectedAmbientColor = AColor(1.0 * 0.2, 0.0, 0.0);
+    expectColorsEqual(ambiantColor, expectedAmbientColor);
+}
\ No newline at end of file
diff --git a/src/Tests/System/RenderDelegate.ViewportInstancing.test.cpp b/src/Tests/System/RenderDelegate.ViewportInstancing.test.cpp
new file mode 100644
index 0000000..4961da3
--- /dev/null
+++ b/src/Tests/System/RenderDelegate.ViewportInstancing.test.cpp
@@ -0,0 +1,228 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxEngine.h>
+
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+TEST(ViewportInstancing, SceneGraphInstances)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("scene_graph_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // File contains a box, instanced 4 times.
+    // Two different materials are used, so we should get 2 "prototypes".
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Shaded,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+
+    auto renderData = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+
+    // Box001 and Box003 share the same prototype.
+    auto it1 = renderData.find(pxr::SdfPath("/scene_graph_instances/Box001.proto_Box001_id0"));
+    ASSERT_TRUE(it1 != renderData.end());
+    auto& prototype1RenderData = testEngine.GetRenderDelegate()->GetRenderData(it1->second);
+    auto  transforms1 = prototype1RenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms1.size());
+    const auto expectedTransformBox001 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances/Box001")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox001.Equals(transforms1[0]));
+    const auto expectedTransformBox003 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances/Box003")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox003.Equals(transforms1[1]));
+
+    // Box002 and Box004 share the same prototype.
+    auto it2 = renderData.find(pxr::SdfPath("/scene_graph_instances/Box002.proto_Box001_id0"));
+    ASSERT_TRUE(it2 != renderData.end());
+    auto& prototype2RenderData = testEngine.GetRenderDelegate()->GetRenderData(it2->second);
+    auto  transforms2 = prototype2RenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms2.size());
+    const auto expectedTransformBox002 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances/Box002")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox002.Equals(transforms2[0]));
+    const auto expectedTransformBox004 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances/Box004")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox004.Equals(transforms2[1]));
+}
+
+TEST(ViewportInstancing, SceneGraphInstancesWithSubsets)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("instances_with_material_bound_subsets.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // File contains a box instanced twice. Each of the faces has a different material. We therefor
+    // expect 6 render items, one for each face, which contains 2 instances.
+    ASSERT_EQ(6, renderItems.GetNumberOfRenderItems());
+
+    auto renderData = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+
+    auto it1 = renderData.find(
+        pxr::SdfPath("/instances_with_material_bound_subsets/Box001.proto_Box001_id0"));
+    ASSERT_TRUE(it1 != renderData.end());
+    auto& prototypeRenderData = testEngine.GetRenderDelegate()->GetRenderData(it1->second);
+    auto  transforms = prototypeRenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms.size());
+    EXPECT_EQ(6, prototypeRenderData.shadedSubsets.size());
+    const auto expectedTransformBox001 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/instances_with_material_bound_subsets/Box001")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox001.Equals(transforms[0]));
+    const auto expectedTransformBox002 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/instances_with_material_bound_subsets/Box002")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox002.Equals(transforms[1]));
+}
+
+TEST(ViewportInstancing, PointInstances)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("point_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0);
+
+    // File contains a box instanced 3 times via a point instancer, using 2 prototypes (expect
+    // two render items)
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    auto renderData = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+
+    pxr::VtArray<pxr::GfMatrix4d> expectedTransforms;
+    auto instancer = pxr::UsdGeomPointInstancer(stage->GetPrimAtPath(pxr::SdfPath("/Instancer")));
+    instancer.ComputeInstanceTransformsAtTime(&expectedTransforms, 0, 0);
+
+    // First prototype, 1 instance.
+    auto it1 = renderData.find(pxr::SdfPath("/Instancer.proto0_cube_id0"));
+    ASSERT_TRUE(it1 != renderData.end());
+    auto& prototype1RenderData = testEngine.GetRenderDelegate()->GetRenderData(it1->second);
+    auto  transforms1 = prototype1RenderData.instancer->GetTransforms();
+    EXPECT_EQ(1, transforms1.size());
+    EXPECT_EQ(1, prototype1RenderData.shadedSubsets.size());
+    EXPECT_TRUE(MaxUsd::ToMaxMatrix3(expectedTransforms[0]).Equals(transforms1[0]));
+
+    // Second prototype, 2 instances.
+    auto it2 = renderData.find(pxr::SdfPath("/Instancer.proto1_cube_id0"));
+    ASSERT_TRUE(it2 != renderData.end());
+    auto& prototype2RenderData = testEngine.GetRenderDelegate()->GetRenderData(it2->second);
+    auto  transforms2 = prototype2RenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms2.size());
+    EXPECT_EQ(1, prototype2RenderData.shadedSubsets.size());
+    EXPECT_TRUE(MaxUsd::ToMaxMatrix3(expectedTransforms[1]).Equals(transforms2[0]));
+    EXPECT_TRUE(MaxUsd::ToMaxMatrix3(expectedTransforms[2]).Equals(transforms2[1]));
+}
+
+TEST(ViewportInstancing, WireframeInstances)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("scene_graph_instances.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    TestRender(stage, testEngine, renderItems, 0, nullptr, { pxr::HdReprTokens->wire });
+
+    // File contains a box, instanced 4 times.
+    // Two different materials are used, so we should get 2 "prototypes".
+    ASSERT_EQ(2, renderItems.GetNumberOfRenderItems());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(0).GetVisibilityGroup());
+    ASSERT_EQ(
+        MaxSDK::Graphics::RenderItemVisibilityGroup::RenderItemVisible_Wireframe,
+        renderItems.GetRenderItem(1).GetVisibilityGroup());
+}
+
+TEST(ViewportInstancing, InstancesAnimatedTransform)
+{
+    auto       testDataPath = GetTestDataPath();
+    const auto filePath = testDataPath.append("scene_graph_instances_animated.usda");
+    const auto stage = pxr::UsdStage::Open(MaxUsd::MaxStringToUsdString(filePath.c_str()));
+
+    HdMaxEngine             testEngine;
+    MockRenderItemContainer renderItems;
+
+    // Frame 0 :
+    TestRender(stage, testEngine, renderItems, 0);
+    // File contains a box, instanced twice.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    auto renderData = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+    // Box001 and Box002 share the same prototype.
+    auto it1
+        = renderData.find(pxr::SdfPath("/scene_graph_instances_animated/Box001.proto_Box001_id0"));
+    ASSERT_TRUE(it1 != renderData.end());
+    auto& prototype1RenderData = testEngine.GetRenderDelegate()->GetRenderData(it1->second);
+    auto  transforms1 = prototype1RenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms1.size());
+    auto expectedTransformBox001 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances_animated/Box001")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox001.Equals(transforms1[0]));
+    auto expectedTransformBox002 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances_animated/Box002")))
+            .ComputeLocalToWorldTransform(0));
+    EXPECT_TRUE(expectedTransformBox002.Equals(transforms1[1]));
+    renderItems.ClearAllRenderItems();
+    TestRender(stage, testEngine, renderItems, 1);
+
+    // Frame 1 :
+    // File contains a box, instanced twice.
+    ASSERT_EQ(1, renderItems.GetNumberOfRenderItems());
+    renderData = testEngine.GetRenderDelegate()->GetRenderDataIdMap();
+    // Box001 and Box002 share the same prototype.
+    it1 = renderData.find(pxr::SdfPath("/scene_graph_instances_animated/Box001.proto_Box001_id0"));
+    ASSERT_TRUE(it1 != renderData.end());
+    auto& prototype2RenderData = testEngine.GetRenderDelegate()->GetRenderData(it1->second);
+    auto  transforms2 = prototype2RenderData.instancer->GetTransforms();
+    EXPECT_EQ(2, transforms2.size());
+    expectedTransformBox001 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances_animated/Box001")))
+            .ComputeLocalToWorldTransform(1));
+    EXPECT_TRUE(expectedTransformBox001.Equals(transforms2[0]));
+    expectedTransformBox002 = MaxUsd::ToMaxMatrix3(
+        pxr::UsdGeomImageable(
+            stage->GetPrimAtPath(pxr::SdfPath("/scene_graph_instances_animated/Box002")))
+            .ComputeLocalToWorldTransform(1));
+    EXPECT_TRUE(expectedTransformBox002.Equals(transforms2[1]));
+}
diff --git a/src/Tests/System/TestGUP.cpp b/src/Tests/System/TestGUP.cpp
new file mode 100644
index 0000000..094b951
--- /dev/null
+++ b/src/Tests/System/TestGUP.cpp
@@ -0,0 +1,59 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestGUP.h"
+
+#include <Max.h>
+
+#define TESTGUP_CLASS_ID Class_ID(0x17f35bb1, 0x3e874149)
+
+extern TCHAR* GetString(int id);
+
+class TestGUPClassDesc : public ClassDesc2
+{
+public:
+    int          IsPublic() override { return TRUE; }
+    void*        Create(BOOL /*loading = FALSE*/) override { return new TestGUP(); }
+    const TCHAR* ClassName() override { return L"USDSystemTests"; }
+
+    SClass_ID SuperClassID() override { return GUP_CLASS_ID; }
+    Class_ID  ClassID() override { return TESTGUP_CLASS_ID; }
+
+    const TCHAR* Category() override { return _T(""); }
+
+    const TCHAR* InternalName() override { return _T("USDSystemTests"); }
+
+    HINSTANCE HInstance() override { return hInstance; }
+
+    int NumActionTables() override { return 0; }
+
+    const MCHAR* NonLocalizedClassName() override { return L"TestGUP"; }
+};
+
+ClassDesc2* GetTestGUPDesc()
+{
+    static TestGUPClassDesc desc;
+    return &desc;
+}
+
+TestGUP::TestGUP() { }
+
+void TestGUP::NotifyProc(void* /*param*/, NotifyInfo* info) { }
+
+DWORD TestGUP::Start() { return GUPRESULT_KEEP; }
+
+void TestGUP::Stop() { }
+
+void TestGUP::DeleteThis() { delete this; }
diff --git a/src/Tests/System/TestGUP.h b/src/Tests/System/TestGUP.h
new file mode 100644
index 0000000..ab5923f
--- /dev/null
+++ b/src/Tests/System/TestGUP.h
@@ -0,0 +1,32 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <guplib.h>
+#include <iparamb2.h>
+#include <max.h>
+
+class TestGUP : public GUP
+{
+public:
+    TestGUP();
+    DWORD       Start() override;
+    void        Stop() override;
+    void        DeleteThis() override;
+    static void NotifyProc(void* param, NotifyInfo* info);
+};
+
+ClassDesc2* GetTestGUPDesc();
diff --git a/src/Tests/System/TestHelpers.cpp b/src/Tests/System/TestHelpers.cpp
new file mode 100644
index 0000000..3fc836f
--- /dev/null
+++ b/src/Tests/System/TestHelpers.cpp
@@ -0,0 +1,132 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestHelpers.h"
+
+#include <RenderDelegate/HdMaxEngine.h>
+#include <RenderDelegate/SelectionRenderItem.h>
+
+#include <Graphics/GeometryRenderItemHandle.h>
+
+fs::path GetTestDataPath()
+{
+    fs::path testDataPath;
+    wchar_t  dllPath[MAX_PATH];
+    HMODULE  hm = NULL;
+    if (GetModuleHandleEx(
+            GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+            (LPCWSTR)&GetTestDataPath,
+            &hm)
+        == 0) {
+        return testDataPath;
+    }
+    if (GetModuleFileName(hm, dllPath, sizeof(dllPath)) == 0) {
+        return testDataPath;
+    }
+
+    auto tmp = fs::path { dllPath };
+    return tmp.parent_path().append(L"..\\data");
+}
+
+void TestRender(
+    pxr::UsdStageRefPtr                     stage,
+    HdMaxEngine&                            engine,
+    MaxSDK::Graphics::IRenderItemContainer& renderItems,
+    const pxr::UsdTimeCode&                 timeCode,
+    MultiMtl*                               multiMat,
+    const pxr::TfTokenVector&               reprs,
+    const HdMaxConsolidator::Config&        consolidationConfig)
+{
+    pxr::GfMatrix4d rootTransform;
+    rootTransform.SetIdentity();
+    renderItems.ClearAllRenderItems();
+    MockUpdateNodeContext nodeContext {};
+    engine.Render(
+        stage->GetPseudoRoot(),
+        rootTransform,
+        renderItems,
+        timeCode,
+        MockUpdateDisplayContext {},
+        nodeContext,
+        reprs,
+        { pxr::HdTokens->geometry },
+        multiMat,
+        consolidationConfig);
+}
+
+MaxSDK::Graphics::SimpleRenderGeometry* GetRenderItemGeometry(
+    const MaxSDK::Graphics::RenderItemHandle& renderItem,
+    bool                                      decorated,
+    bool                                      selectionRenderItem)
+{
+    MaxSDK::Graphics::IRenderGeometryPtr iRenderGeom;
+    // Typically, USD render items are decorated render items (to support a transform offset)
+    if (decorated) {
+        const auto& decorator
+            = static_cast<const MaxSDK::Graphics::RenderItemHandleDecorator&>(renderItem);
+
+        if (selectionRenderItem) {
+            const auto& customItemHandle
+                = static_cast<const MaxSDK::Graphics::CustomRenderItemHandle&>(
+                    decorator.GetDecoratedRenderItem());
+            const auto usdRenderItem
+                = static_cast<SelectionRenderItem*>(customItemHandle.GetCustomeImplementation());
+            const auto renderGeom = usdRenderItem->GetRenderGeometry();
+            iRenderGeom
+                = dynamic_cast<MaxSDK::Graphics::SimpleRenderGeometry*>(renderGeom.GetPointer());
+        } else {
+            const auto& geometryRenderItem
+                = static_cast<const MaxSDK::Graphics::GeometryRenderItemHandle&>(
+                    decorator.GetDecoratedRenderItem());
+            iRenderGeom = geometryRenderItem.GetRenderGeometry();
+        }
+    }
+    // Consolidated/instanced render items are not decorated.
+    else {
+        if (selectionRenderItem) {
+            const auto& customItem
+                = static_cast<const MaxSDK::Graphics::CustomRenderItemHandle&>(renderItem);
+            const auto usdRenderItem
+                = static_cast<SelectionRenderItem*>(customItem.GetCustomeImplementation());
+            if (!usdRenderItem) {
+                return nullptr;
+            }
+            iRenderGeom = usdRenderItem->GetRenderGeometry();
+        } else {
+            const auto& item
+                = static_cast<const MaxSDK::Graphics::GeometryRenderItemHandle&>(renderItem);
+            if (!item.IsValid()) {
+                return nullptr;
+            }
+            iRenderGeom = item.GetRenderGeometry();
+        }
+    }
+    return static_cast<MaxSDK::Graphics::SimpleRenderGeometry*>(iRenderGeom.GetPointer());
+}
+
+bool Point3ArraysAreAlmostEqual(Point3* array1, int size1, Point3* array2, int size2)
+{
+    const float epsilon = 1.e-06F;
+
+    if (size1 != size2) {
+        return false;
+    }
+    for (int i = 0; i < size1; ++i) {
+        if (!array1[i].Equals(array2[i])) {
+            return false;
+        }
+    }
+    return true;
+}
\ No newline at end of file
diff --git a/src/Tests/System/TestHelpers.h b/src/Tests/System/TestHelpers.h
new file mode 100644
index 0000000..212c6a4
--- /dev/null
+++ b/src/Tests/System/TestHelpers.h
@@ -0,0 +1,148 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <RenderDelegate/HdMaxConsolidator.h>
+
+#include <MaxUsd/Builders/MaxSceneBuilder.h>
+
+#include <pxr/imaging/hd/tokens.h>
+
+#include <Graphics/RenderItemHandleDecorator.h>
+#include <Graphics/SimpleRenderGeometry.h>
+
+class HdMaxEngine;
+
+const Class_ID STAGE_CLASS_ID(0x24ce4724, 0x14d2486b);
+
+// When comparing Point3 and Matrix3 values, use an epsilon a bit bigger than FLT_EPSILON,
+// some float imprecision compounds..
+const float MAX_FLOAT_EPSILON = 1E-4f;
+
+// Used to expose protected methods from the MaxSceneBuilder, so they can be tested.
+class MaxSceneBuilderTester : public MaxUsd::MaxSceneBuilder
+{
+public:
+    MaxSceneBuilderTester()
+        : MaxUsd::MaxSceneBuilder()
+    {
+    }
+};
+
+class MockUpdateDisplayContext : public MaxSDK::Graphics::UpdateDisplayContext
+{
+};
+class MockUpdateNodeContext : public MaxSDK::Graphics::UpdateNodeContext
+{
+public:
+    MockUpdateNodeContext() { this->GetRenderNode().Initialize(); }
+};
+
+class MockRenderItemDecoratorContainer : public MaxSDK::Graphics::IRenderItemContainer
+{
+public:
+    size_t GetNumberOfRenderItems() const override { return renderItems.size(); }
+
+    MaxSDK::Graphics::RenderItemHandle GetRenderItem(size_t i) const override
+    {
+        return renderItems[i];
+    }
+
+    const MaxSDK::Graphics::RenderItemHandleDecorator& At(size_t i) { return renderItems[i]; }
+
+    void AddRenderItem(const MaxSDK::Graphics::RenderItemHandle& pRenderItem) override
+    {
+        const auto renderItem
+            = dynamic_cast<const MaxSDK::Graphics::RenderItemHandleDecorator&>(pRenderItem);
+        renderItems.push_back(renderItem);
+    }
+
+    void AddRenderItems(const IRenderItemContainer& renderItemContainer) override
+    {
+        for (int i = 0; i < renderItemContainer.GetNumberOfRenderItems(); ++i) {
+            AddRenderItem(renderItemContainer.GetRenderItem(i));
+        }
+    }
+
+    void RemoveRenderItem(size_t i) override { renderItems.erase(renderItems.begin() + i); }
+
+    void ClearAllRenderItems() override { renderItems.clear(); }
+
+private:
+    std::vector<MaxSDK::Graphics::RenderItemHandleDecorator> renderItems;
+};
+
+class MockRenderItemContainer : public MaxSDK::Graphics::IRenderItemContainer
+{
+public:
+    size_t GetNumberOfRenderItems() const override { return renderItems.size(); }
+
+    MaxSDK::Graphics::RenderItemHandle GetRenderItem(size_t i) const override
+    {
+        return renderItems[i];
+    }
+
+    void AddRenderItem(const MaxSDK::Graphics::RenderItemHandle& renderItem) override
+    {
+        renderItems.push_back(renderItem);
+    }
+
+    void AddRenderItems(const IRenderItemContainer& renderItemContainer) override
+    {
+        for (int i = 0; i < renderItemContainer.GetNumberOfRenderItems(); ++i) {
+            AddRenderItem(renderItemContainer.GetRenderItem(i));
+        }
+    }
+
+    void RemoveRenderItem(size_t i) override { renderItems.erase(renderItems.begin() + i); }
+
+    void ClearAllRenderItems() override { renderItems.clear(); }
+
+private:
+    std::vector<MaxSDK::Graphics::RenderItemHandle> renderItems;
+};
+
+class ViewMock : public View
+{
+public:
+    Point2 ViewToScreen(Point3 p) override { return Point2 {}; }
+};
+
+fs::path GetTestDataPath();
+
+void TestRender(
+    pxr::UsdStageRefPtr                     stage,
+    HdMaxEngine&                            engine,
+    MaxSDK::Graphics::IRenderItemContainer& renderItems,
+    const pxr::UsdTimeCode&                 timeCode,
+    MultiMtl*                               multiMat = nullptr,
+    const pxr::TfTokenVector&               reprs = { pxr::HdReprTokens->smoothHull },
+    const HdMaxConsolidator::Config&        consolidationConfig = {});
+
+/**
+ * \brief Helper to fetch the render geometry from a render item. Used to validate render results.
+ * Caller must specify if the render item is decorated (has an offset transform), and if it is a
+ * render item also displaying selection (this uses a Custom render item internally)
+ * \param renderItem The render item to fetch the geometry from.
+ * \param decorated If the render item is decorated (with a transform)
+ * \param selectionRenderItem If the render item displays selection highlighting
+ * \return The render geometry (through a SimpleRenderGeometry).
+ */
+MaxSDK::Graphics::SimpleRenderGeometry* GetRenderItemGeometry(
+    const MaxSDK::Graphics::RenderItemHandle& renderItem,
+    bool                                      decorated = true,
+    bool                                      selectionRenderItem = false);
+
+bool Point3ArraysAreAlmostEqual(Point3* array1, int size1, Point3* array2, int size2);
\ No newline at end of file
diff --git a/src/Tests/System/USD.System.test.def b/src/Tests/System/USD.System.test.def
new file mode 100644
index 0000000..af6d68d
--- /dev/null
+++ b/src/Tests/System/USD.System.test.def
@@ -0,0 +1,9 @@
+EXPORTS
+   LibDescription       @1       PRIVATE
+   LibNumberClasses     @2       PRIVATE
+   LibClassDesc         @3       PRIVATE
+   LibVersion           @4       PRIVATE
+   LibInitialize        @6       PRIVATE
+   LibShutdown          @7       PRIVATE
+SECTIONS
+   .data READ WRITE
diff --git a/src/Tests/System/USD.System.test.vcxproj b/src/Tests/System/USD.System.test.vcxproj
new file mode 100644
index 0000000..77ce285
--- /dev/null
+++ b/src/Tests/System/USD.System.test.vcxproj
@@ -0,0 +1,141 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>USD.System.tests</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <Distrib>0</Distrib>
+    <Distrib Condition="'$(BuildType)'=='jenkins'">1</Distrib>
+    <BuildNumber Condition="'$(BuildNumber)'==''">0</BuildNumber>
+    <ComponentVersion Condition="'$(ComponentVersion)'==''">0.0.1</ComponentVersion>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+    <Import Project="$(SolutionDir)\UFE.props" />
+    <Import Project="$(SolutionDir)\USDUFE.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>USD.System.test</TargetName>
+    <TargetExt>.gup</TargetExt>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <OutDir>$(TestOutDir)\</OutDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <OutDir>$(TestOutDir)\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>_USRDLL;QT_NO_SIGNALS_SLOTS_KEYWORDS;USDCORE_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(GoogleTestInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)/usd_system_tests_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(GoogleTestLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>core.lib;bmm.lib;geom.lib;mesh.lib;maxutil.lib;mnmath.lib;maxscrpt.lib;paramblk2.lib;gup.lib;GraphicsDriver.lib;poly.lib;optimesh.lib;gtest.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+    <CustomBuildStep>
+      <Command>
+      </Command>
+    </CustomBuildStep>
+    <CustomBuildStep />
+    <PreBuildEvent>
+      <Message>
+      </Message>
+      <Command>
+      </Command>
+    </PreBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying runtime files</Message>
+      <Command>robocopy /S /SL /NFL /NDL /NJH /NJS /NC /NS /NP $(GoogleTestBin) $(TestOutDir) gtest.dll
+if %errorlevel% geq 4 exit /b 1
+rmdir $(SolutionDir)\Tests\Integration\SystemTestGup
+mklink /j $(SolutionDir)\Tests\Integration\SystemTestGup $(TestOutDir)</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Link>
+      <AdditionalDependencies>DataBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ModuleDefinitionFile>$(ProjectDir)USD.System.test.def</ModuleDefinitionFile>
+    </Link>
+    <ClCompile>
+      <AdditionalOptions>%(AdditionalOptions)</AdditionalOptions>
+      <Optimization>Disabled</Optimization>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <Link>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <ModuleDefinitionFile>$(ProjectDir)USD.System.test.def</ModuleDefinitionFile>
+    </Link>
+    <ClCompile>
+      <AdditionalOptions>%(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="dllmain.cpp" />
+    <ClCompile Include="MaxScriptInterface.cpp" />
+    <ClCompile Include="MaxUsdObjects.Camera.test.cpp" />
+    <ClCompile Include="TestGUP.cpp" />
+    <ClCompile Include="USDCore.max.test.cpp" />
+    <ClCompile Include="MaxIntegrationTestListener.cpp" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="TestGUP.h" />
+    <ClInclude Include="TestHelpers.h" />
+    <ClInclude Include="MaxIntegrationTestListener.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="RenderDelegate.General.test.cpp" />
+    <ClCompile Include="TestHelpers.cpp" />
+    <ClCompile Include="RenderDelegate.PrimvarsToNitrous.test.cpp" />
+    <ClCompile Include="MaxUsdObjects.SelectionBuffer.test.cpp" />
+    <ClCompile Include="RenderDelegate.ViewportDisplayOptions.test.cpp" />
+    <ClCompile Include="RenderDelegate.ViewportInstancing.test.cpp" />
+    <ClCompile Include="RenderDelegate.Consolidation.test.cpp" />
+    <ClCompile Include="RenderDelegate.FallbackRendering.test.cpp" />
+    <ClCompile Include="MaxUsdObjects.SubobjectTransforms.test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+    <None Include="USD.System.test.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\RenderDelegate\RenderDelegate.vcxproj">
+      <Project>{7b707dd2-355b-4232-89e8-f92a821b71b3}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\MaxUsdObjects\MaxUsdObjects.vcxproj">
+      <Project>{046cf5d0-8dbf-46fb-8d73-11f1861f81f1}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Tests/System/USD.System.test.vcxproj.filters b/src/Tests/System/USD.System.test.vcxproj.filters
new file mode 100644
index 0000000..77fe5ef
--- /dev/null
+++ b/src/Tests/System/USD.System.test.vcxproj.filters
@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="headers">
+      <UniqueIdentifier>{d1b99d79-cc9a-4cbd-bb6a-175df939f1e9}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="source">
+      <UniqueIdentifier>{117cbc4e-d5cb-484e-985e-746aace4d1b1}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="source\Tests">
+      <UniqueIdentifier>{5dc2c0c6-fc46-4aa5-93c1-bc54b2066384}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="dllmain.cpp">
+      <Filter>source</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxScriptInterface.cpp">
+      <Filter>source</Filter>
+    </ClCompile>
+    <ClCompile Include="TestGUP.cpp">
+      <Filter>source</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxIntegrationTestListener.cpp">
+      <Filter>source</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.General.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="USDCore.max.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="TestHelpers.cpp">
+      <Filter>source</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.ViewportDisplayOptions.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.ViewportInstancing.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.PrimvarsToNitrous.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.Consolidation.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="RenderDelegate.FallbackRendering.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxUsdObjects.SelectionBuffer.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxUsdObjects.SubobjectTransforms.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxUsdObjects.Camera.test.cpp">
+      <Filter>source\Tests</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="resource.h">
+      <Filter>headers</Filter>
+    </ClInclude>
+    <ClInclude Include="TestGUP.h">
+      <Filter>headers</Filter>
+    </ClInclude>
+    <ClInclude Include="TestHelpers.h">
+      <Filter>headers</Filter>
+    </ClInclude>
+    <ClInclude Include="MaxIntegrationTestListener.h">
+      <Filter>headers</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="USD.System.test.def" />
+    <None Include="packages.config" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Tests/System/USDCore.max.test.cpp b/src/Tests/System/USDCore.max.test.cpp
new file mode 100644
index 0000000..b6ffa29
--- /dev/null
+++ b/src/Tests/System/USDCore.max.test.cpp
@@ -0,0 +1,23 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <gtest/gtest.h>
+#include <max.h>
+
+TEST(USDSystemTest, GetCoreInterfaceTest)
+{
+    auto* core_interface = GetCOREInterface();
+    EXPECT_TRUE(core_interface != nullptr);
+}
diff --git a/src/Tests/System/dllmain.cpp b/src/Tests/System/dllmain.cpp
new file mode 100644
index 0000000..16a64cd
--- /dev/null
+++ b/src/Tests/System/dllmain.cpp
@@ -0,0 +1,72 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestGUP.h"
+#include <max.h>
+
+HINSTANCE hInstance;
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL,ULONG fdwReason,LPVOID /*lpvReserved*/)
+{
+	if( fdwReason == DLL_PROCESS_ATTACH )
+	{
+		// Hang on to this DLL's instance handle.
+		hInstance = hinstDLL;
+		DisableThreadLibraryCalls(hInstance);
+	}
+	return(TRUE);
+}
+
+TCHAR* GetString(int id)
+{
+	static TCHAR buf[256];
+
+	if (hInstance)
+		return LoadString(hInstance, id, buf, sizeof(buf)) ? buf : NULL;
+	return nullptr;
+}
+
+__declspec( dllexport ) const TCHAR* LibDescription()
+{
+	return L"System test utility for the USD plugin.";
+}
+
+__declspec(dllexport) int LibNumberClasses()
+{
+	return 1;
+}
+
+__declspec(dllexport) ClassDesc* LibClassDesc(int i)
+{
+	switch (i) {
+	case 0: return GetTestGUPDesc();
+	default: return nullptr;
+	}
+}
+
+__declspec( dllexport ) ULONG LibVersion()
+{
+	return VERSION_3DSMAX;
+}
+
+__declspec( dllexport ) int LibInitialize(void)
+{
+	return TRUE;
+}
+
+__declspec( dllexport ) int LibShutdown(void)
+{
+	return TRUE;
+}
\ No newline at end of file
diff --git a/src/Tests/System/usd_system_tests_banned.h b/src/Tests/System/usd_system_tests_banned.h
new file mode 100644
index 0000000..7953381
--- /dev/null
+++ b/src/Tests/System/usd_system_tests_banned.h
@@ -0,0 +1,20 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "usd_banned.h"
+
+#include <gtest/gtest.h>
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.ChannelBuilder.test.cpp b/src/Tests/Unit/MaxUsd.ChannelBuilder.test.cpp
new file mode 100644
index 0000000..82025b3
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.ChannelBuilder.test.cpp
@@ -0,0 +1,1092 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/ChannelBuilder.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+using namespace MaxUsd;
+
+TEST(ChannelBuilderTests, ConstantPrimvar)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube mesh.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Create a constant primvar
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    auto                    primvar = primVarApi.CreatePrimvar(
+        pxr::TfToken("testPrimvar"), pxr::SdfValueTypeNames->Float3Array);
+    primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+    pxr::VtVec3fArray values { pxr::GfVec3f(1.f, 2.f, 3.f) };
+    primvar.Set(values);
+
+    auto builder = MapBuilder(&cube, 0);
+    builder.Build(
+        primvar.GetAttr(),
+        primvar.GetInterpolation(),
+        &primvar,
+        usdMesh,
+        pxr::UsdTimeCode::Default());
+
+    MNMap*     map = cube.M(0);
+    const auto fNum = map->FNum();
+
+    ASSERT_EQ(fNum, 6);
+    ASSERT_EQ(map->VNum(), 1); // Only need a single value.
+    EXPECT_EQ(map->V(0), Point3(values[0][0], values[0][1], values[0][2]));
+    for (int i = 0; i < fNum; ++i) {
+        const auto& face = map->F(i);
+        for (int j = 0; j < face->deg; ++j) {
+            ASSERT_EQ(face->tv[j], 0); // All values are the same.
+        }
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/ConstantPrimvar.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+void TestPointDataPrimvar(bool indexed, const pxr::TfToken& interpolation)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube mesh.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Create a vertex interpolated primvar
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    auto                    primvar = primVarApi.CreatePrimvar(
+        pxr::TfToken("testPrimvar"), pxr::SdfValueTypeNames->Float3Array);
+    primvar.SetInterpolation(interpolation);
+    pxr::VtVec3fArray values;
+
+    const auto value1 = pxr::GfVec3f(1.f, 1.f, 1.f);
+    const auto value2 = pxr::GfVec3f(2.f, 2.f, 2.f);
+
+    if (indexed) {
+        values.push_back(value1);
+        values.push_back(value2);
+        pxr::VtIntArray indices;
+        indices.push_back(0);
+        for (int i = 1; i < 8; ++i) {
+            indices.push_back(1);
+        }
+        primvar.SetIndices(indices);
+    } else {
+        values.push_back(value1);
+        for (int i = 1; i < 8; ++i) {
+            values.push_back(value2);
+        }
+    }
+    primvar.Set(values);
+
+    auto builder = MapBuilder(&cube, 0);
+    builder.Build(
+        primvar.GetAttr(),
+        primvar.GetInterpolation(),
+        &primvar,
+        usdMesh,
+        pxr::UsdTimeCode::Default());
+
+    MNMap*     map = cube.M(0);
+    const auto fNum = map->FNum();
+    ASSERT_EQ(fNum, 6);
+    if (indexed) {
+        ASSERT_EQ(map->VNum(), 2);
+        EXPECT_EQ(map->V(0), Point3(value1[0], value1[1], value1[2]));
+        EXPECT_EQ(map->V(1), Point3(value2[0], value2[1], value2[2]));
+
+        // Value0 ends up on 3 face-vertices from 3 faces.
+        EXPECT_EQ(map->F(0)->tv[0], 0); // Value1
+        EXPECT_EQ(map->F(0)->tv[1], 1);
+        EXPECT_EQ(map->F(0)->tv[2], 1);
+        EXPECT_EQ(map->F(0)->tv[3], 1);
+
+        EXPECT_EQ(map->F(1)->tv[0], 1);
+        EXPECT_EQ(map->F(1)->tv[1], 1);
+        EXPECT_EQ(map->F(1)->tv[2], 1);
+        EXPECT_EQ(map->F(1)->tv[3], 1);
+
+        EXPECT_EQ(map->F(2)->tv[0], 0); // Value1
+        EXPECT_EQ(map->F(2)->tv[1], 1);
+        EXPECT_EQ(map->F(2)->tv[2], 1);
+        EXPECT_EQ(map->F(2)->tv[3], 1);
+
+        EXPECT_EQ(map->F(3)->tv[0], 1);
+        EXPECT_EQ(map->F(3)->tv[1], 1);
+        EXPECT_EQ(map->F(3)->tv[2], 1);
+        EXPECT_EQ(map->F(3)->tv[3], 1);
+
+        EXPECT_EQ(map->F(4)->tv[0], 1);
+        EXPECT_EQ(map->F(4)->tv[1], 1);
+        EXPECT_EQ(map->F(4)->tv[2], 1);
+        EXPECT_EQ(map->F(4)->tv[3], 1);
+
+        EXPECT_EQ(map->F(5)->tv[0], 1);
+        EXPECT_EQ(map->F(5)->tv[1], 0); // Value1
+        EXPECT_EQ(map->F(5)->tv[2], 1);
+        EXPECT_EQ(map->F(5)->tv[3], 1);
+    } else {
+        ASSERT_EQ(map->VNum(), 8);
+        EXPECT_EQ(map->V(0), Point3(value1[0], value1[1], value1[2]));
+        for (int i = 1; i < 8; i++) {
+            EXPECT_EQ(map->V(i), Point3(value2[0], value2[1], value2[2]));
+        }
+
+        EXPECT_EQ(map->F(0)->tv[0], 0); // Value1
+        EXPECT_EQ(map->F(0)->tv[1], 2);
+        EXPECT_EQ(map->F(0)->tv[2], 3);
+        EXPECT_EQ(map->F(0)->tv[3], 1);
+
+        EXPECT_EQ(map->F(1)->tv[0], 4);
+        EXPECT_EQ(map->F(1)->tv[1], 5);
+        EXPECT_EQ(map->F(1)->tv[2], 7);
+        EXPECT_EQ(map->F(1)->tv[3], 6);
+
+        EXPECT_EQ(map->F(2)->tv[0], 0); // Value1
+        EXPECT_EQ(map->F(2)->tv[1], 1);
+        EXPECT_EQ(map->F(2)->tv[2], 5);
+        EXPECT_EQ(map->F(2)->tv[3], 4);
+
+        EXPECT_EQ(map->F(3)->tv[0], 1);
+        EXPECT_EQ(map->F(3)->tv[1], 3);
+        EXPECT_EQ(map->F(3)->tv[2], 7);
+        EXPECT_EQ(map->F(3)->tv[3], 5);
+
+        EXPECT_EQ(map->F(4)->tv[0], 3);
+        EXPECT_EQ(map->F(4)->tv[1], 2);
+        EXPECT_EQ(map->F(4)->tv[2], 6);
+        EXPECT_EQ(map->F(4)->tv[3], 7);
+
+        EXPECT_EQ(map->F(5)->tv[0], 2);
+        EXPECT_EQ(map->F(5)->tv[1], 0); // Value1
+        EXPECT_EQ(map->F(5)->tv[2], 4);
+        EXPECT_EQ(map->F(5)->tv[3], 6);
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/VertexPrimvar_indexed_");
+    exportPath.append(std::to_string(indexed));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(ChannelBuilderTests, VertexPrimvar)
+{
+    TestPointDataPrimvar(false, pxr::UsdGeomTokens->vertex);
+}
+
+TEST(ChannelBuilderTests, VertexPrimvar_Indexed)
+{
+    TestPointDataPrimvar(true, pxr::UsdGeomTokens->vertex);
+}
+
+TEST(ChannelBuilderTests, VaryingPrimvar)
+{
+    TestPointDataPrimvar(false, pxr::UsdGeomTokens->varying);
+}
+
+TEST(ChannelBuilderTests, VaryingPrimvar_Indexed)
+{
+    TestPointDataPrimvar(true, pxr::UsdGeomTokens->varying);
+}
+
+void TestFaceVaryingPrimvar(bool indexed)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Create a faceVarying interpolated primvar.
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    auto                    primvar = primVarApi.CreatePrimvar(
+        pxr::TfToken("testPrimvar"), pxr::SdfValueTypeNames->Float3Array);
+    primvar.SetInterpolation(pxr::UsdGeomTokens->faceVarying);
+    pxr::VtVec3fArray values;
+
+    const auto value1 = pxr::GfVec3f(1.f, 1.f, 1.f);
+    const auto value2 = pxr::GfVec3f(2.f, 2.f, 2.f);
+
+    if (indexed) {
+        values.push_back(value1);
+        values.push_back(value2);
+
+        pxr::VtIntArray indices;
+        for (int i = 0; i < 24; ++i) {
+            indices.push_back(i % 2); // Alternate values odd/even
+        }
+        primvar.SetIndices(indices);
+    } else {
+        for (int i = 0; i < 24; ++i) {
+            values.push_back(i % 2 == 0 ? value1 : value2); // Alternate values odd/even
+        }
+    }
+    primvar.Set(values);
+
+    auto builder = MapBuilder(&cube, 0);
+    builder.Build(
+        primvar.GetAttr(),
+        primvar.GetInterpolation(),
+        &primvar,
+        usdMesh,
+        pxr::UsdTimeCode::Default());
+
+    MNMap*     map = cube.M(0);
+    const auto fNum = map->FNum();
+    ASSERT_EQ(fNum, 6);
+
+    if (indexed) {
+        ASSERT_EQ(map->VNum(), 2);
+        EXPECT_EQ(map->V(0), Point3(value1[0], value1[1], value1[2]));
+        EXPECT_EQ(map->V(1), Point3(value2[0], value2[1], value2[2]));
+
+        int idx = 0;
+        for (int i = 0; i < fNum; ++i) {
+            const auto& face = map->F(i);
+            for (int j = 0; j < face->deg; ++j) {
+                EXPECT_EQ(map->F(i)->tv[j], idx++ % 2);
+            }
+        }
+    } else {
+        ASSERT_EQ(map->VNum(), 24);
+        for (int i = 1; i < 24; i++) {
+            EXPECT_EQ(map->V(i), Point3(values[i][0], values[i][1], values[i][2]));
+        }
+        int idx = 0;
+        for (int i = 0; i < fNum; ++i) {
+            const auto& face = map->F(i);
+            for (int j = 0; j < face->deg; ++j) {
+                EXPECT_EQ(map->F(i)->tv[j], idx++); // One index per face-vertex.
+            }
+        }
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/FaceVaryingPrimvar_indexed_");
+    exportPath.append(std::to_string(indexed));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(ChannelBuilderTests, FaceVaryingPrimvar) { TestFaceVaryingPrimvar(false); }
+
+TEST(ChannelBuilderTests, FaceVaryingPrimvar_Indexed) { TestFaceVaryingPrimvar(true); }
+
+void TestUniformPrimvar(bool indexed)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Create a uniform interpolated primvar.
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    auto                    primvar = primVarApi.CreatePrimvar(
+        pxr::TfToken("testPrimvar"), pxr::SdfValueTypeNames->Float3Array);
+    primvar.SetInterpolation(pxr::UsdGeomTokens->uniform);
+    pxr::VtVec3fArray values;
+
+    const auto value1 = pxr::GfVec3f(1.f, 1.f, 1.f);
+    const auto value2 = pxr::GfVec3f(2.f, 2.f, 2.f);
+
+    if (indexed) {
+        values.push_back(value1);
+        values.push_back(value2);
+
+        pxr::VtIntArray indices;
+        indices.push_back(0);
+        for (int i = 1; i < 6; ++i) {
+            indices.push_back(1);
+        }
+        primvar.SetIndices(indices);
+    } else {
+        values.push_back(value1);
+        for (int i = 1; i < 6; ++i) {
+            values.push_back(value2);
+        }
+    }
+    primvar.Set(values);
+
+    auto builder = MapBuilder(&cube, 0);
+    builder.Build(
+        primvar.GetAttr(),
+        primvar.GetInterpolation(),
+        &primvar,
+        usdMesh,
+        pxr::UsdTimeCode::Default());
+
+    MNMap*     map = cube.M(0);
+    const auto fNum = map->FNum();
+    ASSERT_EQ(fNum, 6);
+
+    if (indexed) {
+        ASSERT_EQ(map->VNum(), 2);
+        EXPECT_EQ(map->V(0), Point3(value1[0], value1[1], value1[2]));
+        EXPECT_EQ(map->V(1), Point3(value2[0], value2[1], value2[2]));
+
+        for (int i = 0; i < fNum; ++i) {
+            const auto& face = map->F(i);
+            for (int j = 0; j < face->deg; ++j) {
+                EXPECT_EQ(
+                    map->F(i)->tv[j], i > 0 ? 1 : 0); // First face uses value1, other faces value2.
+            }
+        }
+    } else {
+        ASSERT_EQ(map->VNum(), 6);
+        EXPECT_EQ(map->V(0), Point3(value1[0], value1[1], value1[2]));
+        for (int i = 1; i < 6; i++) {
+            EXPECT_EQ(map->V(i), Point3(value2[0], value2[1], value2[2]));
+        }
+
+        for (int i = 0; i < fNum; ++i) {
+            const auto& face = map->F(i);
+            for (int j = 0; j < face->deg; ++j) {
+                EXPECT_EQ(map->F(i)->tv[j], i); // Single value per face.
+            }
+        }
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/UniformPrimvar_indexed_");
+    exportPath.append(std::to_string(indexed));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(ChannelBuilderTests, Uniform) { TestUniformPrimvar(false); }
+
+TEST(ChannelBuilderTests, Uniform_Indexed) { TestUniformPrimvar(true); }
+
+TEST(ChannelBuilderTests, TypeCasts)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    Point3 value(1.f, 2.f, 3.f);
+
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+
+    // We should be able to cast a Double3Array to make it fit into a max channel (which carries
+    // floats).
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("Double3ArrayPrimvar"), pxr::SdfValueTypeNames->Double3Array);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        pxr::VtVec3dArray values;
+        values.push_back(pxr::GfVec3d(value.x, value.y, value.z));
+        primvar.Set(values);
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 1);
+        EXPECT_EQ(map->V(0), value);
+        map->ClearAndFree();
+    }
+
+    // Double2Array should also work, with Z components set to 0.
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("Double2ArrayPrimvar"), pxr::SdfValueTypeNames->Double2Array);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        pxr::VtVec2dArray values;
+        values.push_back(pxr::GfVec2d(value.x, value.y));
+        primvar.Set(values);
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 1);
+        EXPECT_EQ(map->V(0), Point3(value.x, value.y, 0.f));
+        map->ClearAndFree();
+    }
+
+    // Same for DoubleArray -  Y and Z components set to 0.
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("DoublePrimvar"), pxr::SdfValueTypeNames->DoubleArray);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        pxr::VtDoubleArray values;
+        values.push_back(value.x);
+        primvar.Set(values);
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 1);
+        EXPECT_EQ(map->V(0), Point3(value.x, 0.f, 0.f));
+        map->ClearAndFree();
+    }
+
+    // Dimension 4 type will also work, but will be croped to 3 dimensions.
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("Double4ArrayPrimvar"), pxr::SdfValueTypeNames->Double4Array);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        pxr::VtVec4dArray values;
+        values.push_back(pxr::GfVec4f(value.x, value.y, value.z, 1.0f));
+        primvar.Set(values);
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 1);
+        EXPECT_EQ(map->V(0), value);
+        map->ClearAndFree();
+    }
+
+    // Double (non array type) should also work, casts to an array of doubles of size 1, which is
+    // accepted. And could be valid for a constant primvar.
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("DoublePrimvar"), pxr::SdfValueTypeNames->Double);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        primvar.Set(pxr::VtDoubleArray { value.x });
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 1);
+        EXPECT_EQ(map->V(0), Point3(value.x, 0.f, 0.f));
+        map->ClearAndFree();
+    }
+
+    // String primvar, wont cast!
+    {
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::TfToken("StringPrimvar"), pxr::SdfValueTypeNames->String);
+        primvar.SetInterpolation(pxr::UsdGeomTokens->constant);
+        primvar.Set("foo");
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(
+            primvar.GetAttr(),
+            primvar.GetInterpolation(),
+            &primvar,
+            usdMesh,
+            pxr::UsdTimeCode::Default());
+        MNMap* map = cube.M(0);
+        EXPECT_EQ(map->VNum(), 0);
+    }
+}
+
+TEST(ChannelBuilderTests, PrimvarChannelResolution)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    // Create a couple primvars to work with.
+    const auto floatArrayName = pxr::TfToken("floatArray");
+    const auto float2Array1Name = pxr::TfToken("float2Array1");
+    const auto float2Array2Name = pxr::TfToken("float2Array2");
+    const auto texCoord2fArrayName = pxr::TfToken("texCoord2fArray");
+    const auto texCoord3fArrayName = pxr::TfToken("texCoord3fArray");
+    const auto color3fArrayName = pxr::TfToken("color3fArray");
+
+    pxr::VtFloatArray floatArray { 1.0f };
+    pxr::VtVec2fArray float2Array { { 1.0f, 1.0f } };
+    pxr::VtVec3fArray float3Array { { 1.0f, 1.0f, 1.0f } };
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        floatArrayName, pxr::SdfValueTypeNames->FloatArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(floatArray);
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        float2Array1Name, pxr::SdfValueTypeNames->Float2Array, pxr::UsdGeomTokens->constant);
+    primvar.Set(float2Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        float2Array2Name, pxr::SdfValueTypeNames->Float2Array, pxr::UsdGeomTokens->constant);
+    primvar.Set(float2Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        texCoord2fArrayName, pxr::SdfValueTypeNames->TexCoord2fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float2Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        texCoord3fArrayName, pxr::SdfValueTypeNames->TexCoord3fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        color3fArrayName, pxr::SdfValueTypeNames->Color3fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float3Array);
+
+    PrimvarMappingOptions options;
+    options.SetImportUnmappedPrimvars(false);
+
+    std::map<int, pxr::UsdGeomPrimvar> channelPrimvars;
+
+    // Test typical case...
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(floatArrayName, 1);
+    options.SetPrimvarChannelMapping(float2Array1Name, 2);
+    options.SetPrimvarChannelMapping(float2Array2Name, 3);
+    options.SetPrimvarChannelMapping(texCoord2fArrayName, 4);
+    options.SetPrimvarChannelMapping(texCoord3fArrayName, 5);
+    options.SetPrimvarChannelMapping(color3fArrayName, 6);
+
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), floatArrayName);
+    EXPECT_EQ(channelPrimvars[2].GetPrimvarName(), float2Array1Name);
+    EXPECT_EQ(channelPrimvars[3].GetPrimvarName(), float2Array2Name);
+    EXPECT_EQ(channelPrimvars[4].GetPrimvarName(), texCoord2fArrayName);
+    EXPECT_EQ(channelPrimvars[5].GetPrimvarName(), texCoord3fArrayName);
+    EXPECT_EQ(channelPrimvars[6].GetPrimvarName(), color3fArrayName);
+
+    // Test unmapped primvars not imported.
+    options.ClearMappedPrimvars();
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars.size(), 0);
+
+    // Test unused channels "hole"...
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(floatArrayName, 1);
+    options.SetPrimvarChannelMapping(float2Array1Name, 3);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), floatArrayName);
+    EXPECT_EQ(channelPrimvars.find(2), channelPrimvars.end());
+    EXPECT_EQ(channelPrimvars[3].GetPrimvarName(), float2Array1Name);
+
+    // Test primvar collision on the same mesh (two or more primvars targeting the same channel).
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(pxr::TfToken("aaa"), 1); // Primvar doesn't exist on the mesh.
+    options.SetPrimvarChannelMapping(floatArrayName, 1);
+    options.SetPrimvarChannelMapping(float2Array1Name, 1);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars.size(), 1);
+    // float2Array1 will "win" because of alphabetical ordering & aaa doesn't exist.
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), float2Array1Name);
+
+    options.SetImportUnmappedPrimvars(true);
+
+    // Test that disabled channels are respected.
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(floatArrayName, PrimvarMappingOptions::invalidChannel);
+    options.SetPrimvarChannelMapping(float2Array1Name, PrimvarMappingOptions::invalidChannel);
+    options.SetPrimvarChannelMapping(float2Array2Name, PrimvarMappingOptions::invalidChannel);
+    options.SetPrimvarChannelMapping(texCoord2fArrayName, PrimvarMappingOptions::invalidChannel);
+    options.SetPrimvarChannelMapping(texCoord3fArrayName, PrimvarMappingOptions::invalidChannel);
+    options.SetPrimvarChannelMapping(color3fArrayName, PrimvarMappingOptions::invalidChannel);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars.size(), 0);
+
+    // Test fallback to texcoord2fArray type for UVS, and Color3 for vertex color.
+    options.ClearMappedPrimvars();
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), texCoord2fArrayName);
+    EXPECT_EQ(channelPrimvars[0].GetPrimvarName(), color3fArrayName);
+
+    // Test float2 can be inferred as main UV also, if no available texCoord primvar.
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(texCoord2fArrayName, 2);
+    options.SetPrimvarChannelMapping(texCoord3fArrayName, 3);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), float2Array1Name);
+
+    // Create a new primvar with a name higher by alphabetical order, type texcoord2fArray, it
+    // should now be selected.
+    auto aTexcoord2fArray = pxr::TfToken("aTexcoord2fArray");
+    primvar = pxr::UsdGeomPrimvarsAPI(usdMesh).CreatePrimvar(
+        aTexcoord2fArray, pxr::SdfValueTypeNames->TexCoord2fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float2Array);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), aTexcoord2fArray);
+
+    // Make sure that primvars that are aleardy mapped cannot be used as fallback.
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(aTexcoord2fArray, 2);
+    options.SetPrimvarChannelMapping(texCoord2fArrayName, 3);
+    options.SetPrimvarChannelMapping(texCoord3fArrayName, 4);
+    options.SetPrimvarChannelMapping(float2Array1Name, 5);
+    options.SetPrimvarChannelMapping(float2Array2Name, 6);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars.find(1), channelPrimvars.end());
+
+    // Test that all primvars are imported, texCoord primvar are imported in priority to
+    // lower channels.
+    options.ClearMappedPrimvars();
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+
+    EXPECT_EQ(channelPrimvars[0].GetPrimvarName(), color3fArrayName); // Inferred color3fArrayName
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), aTexcoord2fArray); // Inferred main UV
+    EXPECT_EQ(
+        channelPrimvars[2].GetPrimvarName(), texCoord2fArrayName); // Texcoord2 - from type order.
+    EXPECT_EQ(
+        channelPrimvars[3].GetPrimvarName(), texCoord3fArrayName); // TexCoord3 -from type order.
+    EXPECT_EQ(
+        channelPrimvars[4].GetPrimvarName(),
+        float2Array1Name); // Next found primvars... order doesn't depend on type.
+    EXPECT_EQ(channelPrimvars[5].GetPrimvarName(), float2Array2Name);
+    EXPECT_EQ(channelPrimvars[6].GetPrimvarName(), floatArrayName);
+
+    // Test that unmapped primvars are imported to "holes", i.e. available channels.
+    options.ClearMappedPrimvars();
+    options.SetPrimvarChannelMapping(floatArrayName, 1);
+    options.SetPrimvarChannelMapping(float2Array1Name, 3);
+    options.SetPrimvarChannelMapping(float2Array2Name, 5);
+
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(usdMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[0].GetPrimvarName(), color3fArrayName);    // inferred as vertex color
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), floatArrayName);      // explicit mapping
+    EXPECT_EQ(channelPrimvars[2].GetPrimvarName(), aTexcoord2fArray);    // auto-mapped
+    EXPECT_EQ(channelPrimvars[3].GetPrimvarName(), float2Array1Name);    // explicit mapping
+    EXPECT_EQ(channelPrimvars[4].GetPrimvarName(), texCoord2fArrayName); // auto-mapped
+    EXPECT_EQ(channelPrimvars[5].GetPrimvarName(), float2Array2Name);    // explicit mapping
+    EXPECT_EQ(channelPrimvars[6].GetPrimvarName(), texCoord3fArrayName); // auto-mapped
+
+    // Test ordering of primvars into channels.
+    const auto primvarOrderPrim = pxr::SdfPath("/primvar_order");
+    auto orderMesh = pxr::UsdGeomMesh(stage->DefinePrim(primvarOrderPrim, pxr::TfToken("Mesh")));
+
+    const auto point3hArray = pxr::TfToken("point3hArray");
+    const auto color3hArray = pxr::TfToken("color3hArray");
+    const auto color3dArray
+        = pxr::TfToken("color3dArray"); // Will be inferred as vertex color (0) from type
+    const auto normal3dArray = pxr::TfToken("normal3dArray");
+    const auto texCoord3hArray = pxr::TfToken("texCoord3hArray"); // -> channel 6
+    const auto texCoord3dArray = pxr::TfToken("texCoord3dArray"); // -> channel 5
+    const auto texCoord3fArray = pxr::TfToken("texCoord3fArray"); // -> channel 4
+    const auto texCoord2hArray = pxr::TfToken("texCoord2hArray"); // -> channel 3
+    const auto texCoord2dArray = pxr::TfToken("texCoord2dArray"); // -> channel 2
+    const auto texCoord2fArray
+        = pxr::TfToken("texCoord2fArray"); // -> Will be inferred as main UV (1) from type
+
+    pxr::VtArray<pxr::GfVec2d> double2Array = { { 1.0, 1.0 } };
+    pxr::VtArray<pxr::GfVec3d> double3Array = { { 1.0, 1.0, 1.0 } };
+
+    pxr::VtArray<pxr::GfVec2h> half2Array = { { 1.0f, 1.0f } };
+    pxr::VtArray<pxr::GfVec3h> half3Array = { { 1.0f, 1.0f, 1.0f } };
+
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        point3hArray, pxr::SdfValueTypeNames->Point3hArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(half3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        color3hArray, pxr::SdfValueTypeNames->Color3hArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(half3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        color3dArray, pxr::SdfValueTypeNames->Color3dArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(double3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        normal3dArray, pxr::SdfValueTypeNames->Normal3dArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(double3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord3hArray, pxr::SdfValueTypeNames->TexCoord3hArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(half3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord3dArray, pxr::SdfValueTypeNames->TexCoord3dArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(double3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord3fArray, pxr::SdfValueTypeNames->TexCoord3fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float3Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord2hArray, pxr::SdfValueTypeNames->TexCoord2hArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(half2Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord2dArray, pxr::SdfValueTypeNames->TexCoord2dArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(double2Array);
+    primvar = pxr::UsdGeomPrimvarsAPI(orderMesh).CreatePrimvar(
+        texCoord2fArray, pxr::SdfValueTypeNames->TexCoord2fArray, pxr::UsdGeomTokens->constant);
+    primvar.Set(float2Array);
+
+    options.ClearMappedPrimvars();
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(orderMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[0].GetPrimvarName(), color3dArray);    // inferred vertex color
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), texCoord2fArray); // inferred UV
+    EXPECT_EQ(channelPrimvars[2].GetPrimvarName(), texCoord2dArray); // From type...
+    EXPECT_EQ(channelPrimvars[3].GetPrimvarName(), texCoord2hArray);
+    EXPECT_EQ(channelPrimvars[4].GetPrimvarName(), texCoord3fArray);
+    EXPECT_EQ(channelPrimvars[5].GetPrimvarName(), texCoord3dArray);
+    EXPECT_EQ(channelPrimvars[6].GetPrimvarName(), texCoord3hArray);
+    EXPECT_EQ(channelPrimvars[7].GetPrimvarName(), color3hArray); // From alphabetical order.
+    EXPECT_EQ(channelPrimvars[8].GetPrimvarName(), normal3dArray);
+    EXPECT_EQ(channelPrimvars[9].GetPrimvarName(), point3hArray);
+
+    // Test that primvars which cannot be fit into max channels are ignored by the mapping
+    // resolution unless the mapping is explicitly specified.
+    const auto unusablePrimvars = pxr::SdfPath("/unusable_primvars");
+    auto       unusablePrimvarsMesh
+        = pxr::UsdGeomMesh(stage->DefinePrim(unusablePrimvars, pxr::TfToken("Mesh")));
+    // No values authored.
+    primvar
+        = pxr::UsdGeomPrimvarsAPI(unusablePrimvarsMesh)
+              .CreatePrimvar(
+                  point3hArray, pxr::SdfValueTypeNames->Point3hArray, pxr::UsdGeomTokens->constant);
+    // String primvar
+    primvar = pxr::UsdGeomPrimvarsAPI(unusablePrimvarsMesh)
+                  .CreatePrimvar(
+                      pxr::TfToken("stringPrimvar"),
+                      pxr::SdfValueTypeNames->String,
+                      pxr::UsdGeomTokens->constant);
+    primvar.Set("foo");
+    // Dimension > 3
+    const auto float4primvar = pxr::TfToken("float4primvar");
+    primvar
+        = pxr::UsdGeomPrimvarsAPI(unusablePrimvarsMesh)
+              .CreatePrimvar(
+                  float4primvar, pxr::SdfValueTypeNames->Float4Array, pxr::UsdGeomTokens->constant);
+    primvar.Set(pxr::VtVec4fArray { { 1.0f, 1.0f, 1.0f, 1.0f } });
+    options.ClearMappedPrimvars();
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(
+        unusablePrimvarsMesh, options, channelPrimvars);
+    ASSERT_TRUE(channelPrimvars.empty());
+    // If explicitly specified, the primvar is always considered in the resolution.
+    options.SetPrimvarChannelMapping(float4primvar, 1);
+    TestUtils::MeshConverterTester::ResolveChannelPrimvars(
+        unusablePrimvarsMesh, options, channelPrimvars);
+    EXPECT_EQ(channelPrimvars[1].GetPrimvarName(), float4primvar);
+}
+
+TEST(ChannelBuilderTests, TimeSampledPrimvar)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Build a USD cube.
+    MeshConverter            converter;
+    MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Create a uniform interpolated primvar.
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    auto                    primvar = primVarApi.CreatePrimvar(
+        pxr::TfToken("testPrimvar"),
+        pxr::SdfValueTypeNames->Float3Array,
+        pxr::UsdGeomTokens->uniform);
+
+    auto setupAtTimeCode
+        = [&](const pxr::UsdTimeCode& timeCode, const pxr::GfVec3f& value, int index) {
+              // Populate the primvar at the specified timecode with the given value / index.
+              // Not using a simpler constant primvar so that indexing can be tested.
+              pxr::VtVec3fArray values;
+              values.push_back(value);
+              values.push_back(value);
+              values.push_back(value);
+              pxr::VtIntArray indices;
+              for (int i = 0; i < 6; ++i) {
+                  indices.push_back(index);
+              }
+              primvar.SetIndices(indices, timeCode);
+              primvar.Set(values, timeCode);
+          };
+
+    setupAtTimeCode(pxr::UsdTimeCode::Default(), pxr::GfVec3f(0.f, 0.f, 0.f), 0);
+    setupAtTimeCode(1, pxr::GfVec3f(1.f, 1.f, 1.f), 1);
+    setupAtTimeCode(2, pxr::GfVec3f(2.f, 2.f, 2.f), 2);
+
+    auto testAtTimeCode = [&](const pxr::UsdTimeCode& timeCode,
+                              const pxr::GfVec3f&     expectedValue,
+                              int                     expectedIndex) {
+        // Build the channel from the primvar at the specified timeCode.
+        auto builder = MapBuilder(&cube, 0);
+        builder.Build(primvar.GetAttr(), primvar.GetInterpolation(), &primvar, usdMesh, timeCode);
+        MNMap*     map = cube.M(0);
+        const auto fNum = map->FNum();
+        ASSERT_EQ(fNum, 6);
+        ASSERT_EQ(map->VNum(), 3);
+        EXPECT_EQ(map->V(0), Point3(expectedValue[0], expectedValue[1], expectedValue[2]));
+        EXPECT_EQ(map->V(1), Point3(expectedValue[0], expectedValue[1], expectedValue[2]));
+        EXPECT_EQ(map->V(2), Point3(expectedValue[0], expectedValue[1], expectedValue[2]));
+        for (int i = 0; i < fNum; ++i) {
+            const auto& face = map->F(i);
+            for (int j = 0; j < face->deg; ++j) {
+                EXPECT_EQ(map->F(i)->tv[j], expectedIndex);
+            }
+        }
+    };
+
+    testAtTimeCode(pxr::UsdTimeCode::Default(), pxr::GfVec3f(0.f, 0.f, 0.f), 0);
+    testAtTimeCode(1, pxr::GfVec3f(1.f, 1.f, 1.f), 1);
+    testAtTimeCode(2, pxr::GfVec3f(2.f, 2.f, 2.f), 2);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/TimeSampledPrimvar.usda");
+    stage->Export(exportPath);
+#endif
+}
+TEST(ChannelBuilderTests, LeftHandedFaceOrientation)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+
+    // Export a simple quad to a USD mesh.
+    auto                                  maxQuad = TestUtils::CreateQuad();
+    MeshConverter                         converter;
+    pxr::UsdGeomMesh                      usdMesh;
+    MaxMeshConversionOptions              options;
+    std::map<MtlID, pxr::VtIntArray>      materialIdToFacesMap;
+    MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &maxQuad },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    usdMesh.CreateOrientationAttr().Set(pxr::UsdGeomTokens->leftHanded);
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+
+    PrimvarMappingOptions conversionOpts;
+
+    // In our test, will use the first channel as target for imports.
+    int channel = 1;
+
+    // 1) Test that map faces built from vertex-interpolated primvars are correctly flipped.
+
+    std::string vertexPrimvarName = "vertexPrimvar";
+    auto        vertexPrimvar = primVarApi.CreatePrimvar(
+        pxr::TfToken(vertexPrimvarName),
+        pxr::SdfValueTypeNames->Float3Array,
+        pxr::UsdGeomTokens->vertex);
+    vertexPrimvar.SetIndices({ 0, 1, 2, 3 });
+    vertexPrimvar.Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2),
+                                          pxr::GfVec3f(3, 4, 5),
+                                          pxr::GfVec3f(6, 7, 8),
+                                          pxr::GfVec3f(9, 10, 11) });
+    conversionOpts.SetPrimvarChannelMapping(vertexPrimvarName, channel);
+
+    MNMesh                     importedQuadVertex;
+    std::map<int, std::string> channelNames1;
+    converter.ConvertToMNMesh(usdMesh, importedQuadVertex, conversionOpts, channelNames1);
+    auto quadFaceFromVertex = importedQuadVertex.M(channel)->F(0);
+
+    // Expect the reverse order after import, always starting at 0.
+    EXPECT_EQ(0, quadFaceFromVertex->tv[0]);
+    EXPECT_EQ(3, quadFaceFromVertex->tv[1]);
+    EXPECT_EQ(2, quadFaceFromVertex->tv[2]);
+    EXPECT_EQ(1, quadFaceFromVertex->tv[3]);
+
+    // 2) Test that map faces built from faceVarying interpolated primvars are correctly flipped.
+
+    std::string faceVaryingPrimvarName = "faceVaryingPrimvar";
+
+    // Create a face-varying interpolated primvar.
+    auto faceVaryingPrimvar = primVarApi.CreatePrimvar(
+        pxr::TfToken(faceVaryingPrimvarName),
+        pxr::SdfValueTypeNames->Float3Array,
+        pxr::UsdGeomTokens->faceVarying);
+
+    faceVaryingPrimvar.SetIndices({ 0, 1, 2, 3 });
+    faceVaryingPrimvar.Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2),
+                                               pxr::GfVec3f(3, 4, 5),
+                                               pxr::GfVec3f(6, 7, 8),
+                                               pxr::GfVec3f(9, 10, 11) });
+
+    conversionOpts.ClearMappedPrimvars();
+    conversionOpts.SetPrimvarChannelMapping(faceVaryingPrimvarName, channel);
+
+    MNMesh                     importedQuadFaceVaring;
+    std::map<int, std::string> channelNames2;
+    converter.ConvertToMNMesh(usdMesh, importedQuadFaceVaring, conversionOpts, channelNames2);
+    auto quadFaceFromFaceVarying = importedQuadFaceVaring.M(channel)->F(0);
+
+    // Expect te reverse order after import, always starting at 0.
+    EXPECT_EQ(0, quadFaceFromFaceVarying->tv[0]);
+    EXPECT_EQ(3, quadFaceFromFaceVarying->tv[1]);
+    EXPECT_EQ(2, quadFaceFromFaceVarying->tv[2]);
+    EXPECT_EQ(1, quadFaceFromFaceVarying->tv[3]);
+
+    // 3) Test that map faces built from uniform interpolated primvars are not affected (all the
+    // points on a face share the same data, nothing to flip).
+
+    std::string uniformPrimvarName = "uniformPrimvar";
+    // Create a unifrom interpolated primvar.
+    auto uniformPrimvar = primVarApi.CreatePrimvar(
+        pxr::TfToken(uniformPrimvarName),
+        pxr::SdfValueTypeNames->Float3Array,
+        pxr::UsdGeomTokens->uniform);
+    uniformPrimvar.SetIndices({ 0 });
+    uniformPrimvar.Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2) });
+
+    conversionOpts.ClearMappedPrimvars();
+    conversionOpts.SetPrimvarChannelMapping(uniformPrimvarName, channel);
+
+    MNMesh                     importedQuadUniform;
+    std::map<int, std::string> channelNames3;
+    converter.ConvertToMNMesh(usdMesh, importedQuadUniform, conversionOpts, channelNames3);
+    auto quadFaceFromUniform = importedQuadUniform.M(channel)->F(0);
+
+    EXPECT_EQ(0, quadFaceFromUniform->tv[0]);
+    EXPECT_EQ(0, quadFaceFromUniform->tv[1]);
+    EXPECT_EQ(0, quadFaceFromUniform->tv[2]);
+    EXPECT_EQ(0, quadFaceFromUniform->tv[3]);
+
+    // 4) Test that map faces built from constant interpolated primvars are not affected (all the
+    // points on a mesh share the same data, nothing to flip).
+
+    std::string constantPrimvarName = "constantPrimvar";
+    // Create a constant interpolated primvar.
+    auto constantPrimvar = primVarApi.CreatePrimvar(
+        pxr::TfToken(constantPrimvarName),
+        pxr::SdfValueTypeNames->Float3Array,
+        pxr::UsdGeomTokens->constant);
+    constantPrimvar.Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2) });
+
+    conversionOpts.ClearMappedPrimvars();
+    conversionOpts.SetPrimvarChannelMapping(constantPrimvarName, channel);
+
+    MNMesh                     importedQuadConstant;
+    std::map<int, std::string> channelNames4;
+    converter.ConvertToMNMesh(usdMesh, importedQuadConstant, conversionOpts, channelNames4);
+    auto quadFaceFromConstant = importedQuadConstant.M(channel)->F(0);
+
+    EXPECT_EQ(0, quadFaceFromConstant->tv[0]);
+    EXPECT_EQ(0, quadFaceFromConstant->tv[1]);
+    EXPECT_EQ(0, quadFaceFromConstant->tv[2]);
+    EXPECT_EQ(0, quadFaceFromConstant->tv[3]);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/ChannelBuilder/leftHandedOrientationPrimvar.usda");
+    stage->Export(exportPath);
+#endif
+}
diff --git a/src/Tests/Unit/MaxUsd.CreaseDataConversion.test.cpp b/src/Tests/Unit/MaxUsd.CreaseDataConversion.test.cpp
new file mode 100644
index 0000000..1fdf770
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.CreaseDataConversion.test.cpp
@@ -0,0 +1,549 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+TEST(CreaseDataConversionTests, SimpleCreaseDataConversion)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Prepare 3ds max edge creasing support
+    float* eCreaseData = cube.edgeFloat(EDATA_CREASE);
+    if (!eCreaseData) {
+        cube.setEDataSupport(EDATA_CREASE);
+        eCreaseData = cube.edgeFloat(EDATA_CREASE);
+        ASSERT_TRUE(eCreaseData);
+    }
+
+    // Prepare 3ds max vertex creasing support
+    float* vCreaseData = cube.vertexFloat(VDATA_CREASE);
+    if (!vCreaseData) {
+        cube.setVDataSupport(VDATA_CREASE);
+        vCreaseData = cube.vertexFloat(VDATA_CREASE);
+        ASSERT_TRUE(vCreaseData);
+    }
+
+    // Assign some crease data to a few edges and vertices
+    pxr::VtIntArray eIndices;
+    for (int i = 0; i < 4; ++i) {
+        vCreaseData[i] = (i + 1) * 0.25f;
+        eCreaseData[i] = (i + 1) * 0.25f;
+        eIndices.push_back(cube.e[i].v1);
+        eIndices.push_back(cube.e[i].v2);
+    }
+
+    // Perform the conversion from 3ds max to USD
+    MaxUsd::MeshConverter                         converter;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        MaxUsd::MaxMeshConversionOptions {},
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::VtIntArray   cornerIndices, creaseIndices, creaseLengths;
+    pxr::VtFloatArray cornerSharpnesses, creaseSharpnesses;
+
+    // Validate vertex creasing export
+    usdMesh.GetCornerIndicesAttr().Get(&cornerIndices);
+    usdMesh.GetCornerSharpnessesAttr().Get(&cornerSharpnesses);
+    ASSERT_TRUE(cornerIndices.size() != 0 && cornerIndices.size() == cornerSharpnesses.size());
+    EXPECT_EQ(cornerIndices, pxr::VtIntArray({ 0, 1, 2, 3 }));
+    EXPECT_EQ(cornerSharpnesses, pxr::VtFloatArray({ 2.5f, 5.f, 7.5f, 10.f }));
+
+    // Validate edge creasing export
+    usdMesh.GetCreaseIndicesAttr().Get(&creaseIndices);
+    usdMesh.GetCreaseLengthsAttr().Get(&creaseLengths);
+    usdMesh.GetCreaseSharpnessesAttr().Get(&creaseSharpnesses);
+    ASSERT_TRUE(
+        creaseIndices.size() != 0 && creaseIndices.size() == 2 * creaseLengths.size()
+        && creaseLengths.size() == creaseSharpnesses.size());
+    EXPECT_EQ(creaseIndices, eIndices);
+    EXPECT_EQ(creaseLengths, pxr::VtIntArray({ 2, 2, 2, 2 }));
+    EXPECT_EQ(creaseSharpnesses, pxr::VtFloatArray({ 2.5f, 5.f, 7.5f, 10.f }));
+
+    // Tweak USD values to test clamping on re-import
+    usdMesh.GetCornerSharpnessesAttr().Set(pxr::VtFloatArray({ -1.f, 5.f, 7.5f, 12.f }));
+    usdMesh.GetCreaseSharpnessesAttr().Set(pxr::VtFloatArray({ -1.f, 5.f, 7.5f, 12.f }));
+
+    // Test that the re-converted MNMesh mesh equals the USD mesh (USD -> MNMesh)
+    MNMesh                     reimportedMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reimportedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    TestUtils::CompareUsdAndMaxMeshes(reimportedMesh, usdMesh);
+
+    // Get re-imported mesh creasing data for comparison
+    vCreaseData = reimportedMesh.vertexFloat(VDATA_CREASE);
+    ASSERT_TRUE(vCreaseData);
+    eCreaseData = reimportedMesh.edgeFloat(EDATA_CREASE);
+    ASSERT_TRUE(eCreaseData);
+
+    // Validate vertex creasing round trip
+    ASSERT_TRUE(reimportedMesh.numv == cube.numv);
+    EXPECT_FLOAT_EQ(vCreaseData[0], 0.f);
+    EXPECT_FLOAT_EQ(vCreaseData[1], 0.5f);
+    EXPECT_FLOAT_EQ(vCreaseData[2], 0.75f);
+    EXPECT_FLOAT_EQ(vCreaseData[3], 1.f);
+
+    // Validate edge creasing round trip
+    ASSERT_TRUE(reimportedMesh.nume == cube.nume);
+    EXPECT_FLOAT_EQ(eCreaseData[0], 0.f);
+    EXPECT_FLOAT_EQ(eCreaseData[1], 0.5f);
+    EXPECT_FLOAT_EQ(eCreaseData[2], 0.75f);
+    EXPECT_FLOAT_EQ(eCreaseData[3], 1.f);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/CreaseDataConversionTests/SimpleCreaseDataConversion.usda");
+    stage->Export(exportPath);
+#endif
+}
+TEST(CreaseDataConversionTests, DeadStructsCreasingImportTest)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/dead_structs_import");
+    const auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    // Prepare the degenerate USD mesh to be imported
+    usdMesh.CreateFaceVertexCountsAttr().Set(pxr::VtIntArray({ 0, 2, 3 }));
+    usdMesh.CreateFaceVertexIndicesAttr().Set(pxr::VtIntArray({ 0, 2, 0, 1, 3 }));
+    pxr::VtVec3fArray vertices;
+    vertices.reserve(4);
+    vertices.push_back(pxr::GfVec3f(0, 0, 0));
+    vertices.push_back(pxr::GfVec3f(0, 1, 0));
+    vertices.push_back(pxr::GfVec3f(0, 1, 1));
+    vertices.push_back(pxr::GfVec3f(1, 1, 1));
+    usdMesh.CreatePointsAttr().Set(vertices);
+
+    // Prepare vertex creasing
+    usdMesh.CreateCornerIndicesAttr().Set(pxr::VtIntArray({ 0, 2, 3 }));
+    usdMesh.CreateCornerSharpnessesAttr().Set(pxr::VtFloatArray({ 5.f, 8.f, 5.f }));
+
+    // Prepare edge creasing
+    usdMesh.CreateCreaseIndicesAttr().Set(pxr::VtIntArray({ 0, 1, 0, 2, 1, 3 }));
+    usdMesh.CreateCreaseLengthsAttr().Set(pxr::VtIntArray({ 2, 2, 2 }));
+    usdMesh.CreateCreaseSharpnessesAttr().Set(pxr::VtFloatArray({ 2.5f, 7.5f, 2.5f }));
+
+    // Import to 3ds max
+    MNMesh                     maxMesh;
+    MaxUsd::MeshConverter      converter;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(usdMesh, maxMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+
+    // Validate imported creasing data
+    float* vCreaseData = maxMesh.vertexFloat(VDATA_CREASE);
+    float* eCreaseData = maxMesh.edgeFloat(EDATA_CREASE);
+
+    ASSERT_TRUE(vCreaseData);
+    ASSERT_TRUE(eCreaseData);
+
+    EXPECT_EQ(maxMesh.FNum(), 1);
+    EXPECT_EQ(maxMesh.ENum(), 3);
+    EXPECT_EQ(maxMesh.VNum(), 3);
+
+    EXPECT_FLOAT_EQ(vCreaseData[0], 0.5f);
+    EXPECT_FLOAT_EQ(vCreaseData[1], 0.f);
+    EXPECT_FLOAT_EQ(vCreaseData[2], 0.5f);
+
+    EXPECT_FLOAT_EQ(eCreaseData[0], 0.25f);
+    EXPECT_FLOAT_EQ(eCreaseData[1], 0.25f);
+    EXPECT_FLOAT_EQ(eCreaseData[2], 0.f);
+
+    EXPECT_EQ(maxMesh.v[0].p, Point3(0, 0, 0));
+    EXPECT_EQ(maxMesh.v[1].p, Point3(0, 1, 0));
+    EXPECT_EQ(maxMesh.v[2].p, Point3(1, 1, 1));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/CreaseDataConversionTests/DeadStructsCreasingImportTest.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(CreaseDataConversionTests, DeadStructsCreasingExportTest)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/dead_structs_export");
+
+    // Setup the the MNMesh
+    MNMesh maxMesh;
+    maxMesh.setNumFaces(1);
+    maxMesh.setNumVerts(4);
+    maxMesh.V(0)->p = Point3(0, 0, 0);
+    maxMesh.V(1)->p = Point3(0, 1, 0);
+    maxMesh.V(2)->p = Point3(0, 1, 1);
+    maxMesh.V(3)->p = Point3(0, 0, 1);
+    maxMesh.F(0)->SetDeg(4);
+    maxMesh.F(0)->vtx[0] = 0;
+    maxMesh.F(0)->vtx[1] = 1;
+    maxMesh.F(0)->vtx[2] = 2;
+    maxMesh.F(0)->vtx[3] = 3;
+    maxMesh.FillInMesh();
+
+    EXPECT_EQ(maxMesh.FNum(), 1);
+    EXPECT_EQ(maxMesh.ENum(), 4);
+    EXPECT_EQ(maxMesh.VNum(), 4);
+
+    // Add vertex creasing data
+    float* vCreaseData = maxMesh.vertexFloat(VDATA_CREASE);
+    if (!vCreaseData) {
+        maxMesh.setVDataSupport(VDATA_CREASE);
+        vCreaseData = maxMesh.vertexFloat(VDATA_CREASE);
+        ASSERT_TRUE(vCreaseData);
+    }
+
+    vCreaseData[0] = 0.25f;
+    vCreaseData[1] = 0.75;
+
+    // Add edge creasing data
+    float* eCreaseData = maxMesh.edgeFloat(EDATA_CREASE);
+    if (!eCreaseData) {
+        maxMesh.setEDataSupport(EDATA_CREASE);
+        eCreaseData = maxMesh.edgeFloat(EDATA_CREASE);
+        ASSERT_TRUE(eCreaseData);
+    }
+
+    eCreaseData[0] = 0.5f;
+    eCreaseData[1] = 1.f;
+    eCreaseData[3] = 0.5f;
+
+    // Dead structs
+    maxMesh.v[1].SetFlag(MN_DEAD);
+    maxMesh.e[1].SetFlag(MN_DEAD);
+
+    // Export to USD
+    MaxUsd::MeshConverter                         converter;
+    pxr::UsdGeomMesh                              usdMesh;
+    MaxUsd::MaxMeshConversionOptions              options;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &maxMesh },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Validate exported creasing data
+    pxr::VtIntArray   cornerIndices, creaseIndices, creaseLengths;
+    pxr::VtFloatArray cornerSharpnesses, creaseSharpnesses;
+
+    usdMesh.GetCornerIndicesAttr().Get(&cornerIndices);
+    usdMesh.GetCornerSharpnessesAttr().Get(&cornerSharpnesses);
+    EXPECT_EQ(cornerIndices, pxr::VtIntArray({ 0 }));
+    EXPECT_EQ(cornerSharpnesses, pxr::VtFloatArray({ 2.5f }));
+
+    usdMesh.GetCreaseIndicesAttr().Get(&creaseIndices);
+    usdMesh.GetCreaseLengthsAttr().Get(&creaseLengths);
+    usdMesh.GetCreaseSharpnessesAttr().Get(&creaseSharpnesses);
+    EXPECT_EQ(creaseIndices, pxr::VtIntArray({ 0, 1, 2, 0 }));
+    EXPECT_EQ(creaseLengths, pxr::VtIntArray({ 2, 2 }));
+    EXPECT_EQ(creaseSharpnesses, pxr::VtFloatArray({ 5.f, 5.f }));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/CreaseDataConversionTests/DeadStructsCreasingExportTest.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(CreaseDataConversionTests, TimeSampledCreases)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/timeSampledCreases");
+
+    // Create a simple mesh.
+    auto animatedMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    const pxr::VtVec3fArray points = { { 0.f, 0.f, 0.f }, { 0.f, 1.f, 0.f }, { 0.f, 0.f, 1.f } };
+    const pxr::VtIntArray   faceCounts = { 3 };
+    const pxr::VtIntArray   indices = { 0, 1, 2 };
+    animatedMesh.CreatePointsAttr().Set(points);
+    animatedMesh.CreateFaceVertexCountsAttr().Set(faceCounts);
+    animatedMesh.CreateFaceVertexIndicesAttr().Set(indices);
+
+    // Setup edge and vertex creasing at different timeCodes.
+    auto setAtTimeCode = [&](const pxr::VtIntArray&   eIndices,
+                             const pxr::VtIntArray&   eLengths,
+                             const pxr::VtFloatArray& eSharpenesses,
+                             const pxr::VtIntArray&   vIndices,
+                             const pxr::VtFloatArray& vSharpnesses,
+                             const pxr::UsdTimeCode&  timeCode) {
+        animatedMesh.CreateCreaseIndicesAttr().Set(eIndices, timeCode);
+        animatedMesh.CreateCreaseLengthsAttr().Set(eLengths, timeCode);
+        animatedMesh.CreateCreaseSharpnessesAttr().Set(eSharpenesses, timeCode);
+        animatedMesh.CreateCornerIndicesAttr().Set(vIndices, timeCode);
+        animatedMesh.CreateCornerSharpnessesAttr().Set(vSharpnesses, timeCode);
+    };
+
+    // Default timeCode.
+    const auto eIndicesDefault = { 0, 1 };
+    const auto eLengthsDefault = { 2 };
+    const auto eSharpnesssesDefault = { 1.f };
+    const auto vIndicesDefault = { 0 };
+    const auto vSharpnesssesDefault = { 5.f };
+    setAtTimeCode(
+        eIndicesDefault,
+        eLengthsDefault,
+        eSharpnesssesDefault,
+        vIndicesDefault,
+        vSharpnesssesDefault,
+        pxr::UsdTimeCode::Default());
+
+    // timeCode 1.
+    const auto eIndices1 = { 0, 1, 1, 2 };
+    const auto eLengths1 = { 2, 2 };
+    const auto eSharpnessses1 = { 2.f, 3.f };
+    const auto vIndices1 = { 0, 1 };
+    const auto vSharpnessses1 = { 5.f, 6.f };
+    setAtTimeCode(eIndices1, eLengths1, eSharpnessses1, vIndices1, vSharpnessses1, 1);
+
+    // timeCode 2.
+    const auto eIndices2 = { 0, 1, 2 };
+    const auto eLengths2 = { 3 };
+    const auto eSharpnessses2 = { 4.f };
+    const auto vIndices2 = { 0, 1, 2 };
+    const auto vSharpnessses2 = { 7.f, 8.f, 9.f };
+    setAtTimeCode(eIndices2, eLengths2, eSharpnessses2, vIndices2, vSharpnessses2, 2);
+
+    // Test that the conversion of creases respects the specified timeCode.
+    auto testAtTimeCode = [&](const pxr::VtIntArray&   eIndices,
+                              const pxr::VtIntArray&   eLengths,
+                              const pxr::VtFloatArray& eSharpenesses,
+                              const pxr::VtIntArray&   vIndices,
+                              const pxr::VtFloatArray& vSharpnesses,
+                              const pxr::UsdTimeCode&  timeCode) {
+        MaxUsd::MeshConverter      converter;
+        MNMesh                     reimportedMesh;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            animatedMesh,
+            reimportedMesh,
+            MaxUsd::PrimvarMappingOptions {},
+            channelNames,
+            nullptr,
+            timeCode);
+
+        // Get re-imported mesh creasing data for comparison
+        const auto vCreaseData = reimportedMesh.vertexFloat(VDATA_CREASE);
+        ASSERT_TRUE(vCreaseData);
+        const auto eCreaseData = reimportedMesh.edgeFloat(EDATA_CREASE);
+        ASSERT_TRUE(eCreaseData);
+
+        const auto maxToUsdCreaseFactor = 10.f;
+        // Edge creasing
+        for (int i = 0; i < eLengths.size(); ++i) {
+            EXPECT_FLOAT_EQ(eCreaseData[i] * maxToUsdCreaseFactor, eSharpenesses[i]);
+        }
+        // Vertex creasing.
+        for (int i = 0; i < vIndices.size(); ++i) {
+            EXPECT_FLOAT_EQ(vCreaseData[i] * maxToUsdCreaseFactor, vSharpnesses[i]);
+        }
+    };
+    testAtTimeCode(
+        eIndicesDefault,
+        eLengthsDefault,
+        eSharpnesssesDefault,
+        vIndicesDefault,
+        vSharpnesssesDefault,
+        pxr::UsdTimeCode::Default());
+    testAtTimeCode(eIndices1, eLengths1, eSharpnessses1, vIndices1, vSharpnessses1, 1);
+    testAtTimeCode(eIndices2, eLengths2, eSharpnessses2, vIndices2, vSharpnessses2, 2);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/CreaseDataConversionTests/timeSampledCreases.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(CreaseDataConversionTests, NoCreaseDataConversion)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+
+    auto cube = TestUtils::CreateCube(false);
+
+    // Perform the conversion from 3ds max to USD.
+    MaxUsd::MeshConverter            converter;
+    std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+    auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        MaxUsd::MaxMeshConversionOptions {},
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // We defined no creases on the max mesh... so USD attributes should not be authored.
+
+    // Validate that there are no corner crease attributes.
+    ASSERT_FALSE(usdMesh.GetCornerIndicesAttr().IsAuthored());
+    ASSERT_FALSE(usdMesh.GetCornerSharpnessesAttr().IsAuthored());
+
+    // Validate that there are no vertex crease attributes.
+    ASSERT_FALSE(usdMesh.GetCreaseIndicesAttr().IsAuthored());
+    ASSERT_FALSE(usdMesh.GetCreaseLengthsAttr().IsAuthored());
+    ASSERT_FALSE(usdMesh.GetCreaseSharpnessesAttr().IsAuthored());
+
+    // Even if creases are enabled, if none are actually defined, we should not get the attributes
+    // exported in USD.
+    cube.setEDataSupport(EDATA_CREASE);
+    cube.setVDataSupport(VDATA_CREASE);
+
+    auto usdMeshWithCreaseSupport
+        = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("MeshWithCreaseSupport")));
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        MaxUsd::MaxMeshConversionOptions {},
+        usdMeshWithCreaseSupport,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    ASSERT_FALSE(usdMeshWithCreaseSupport.GetCornerIndicesAttr().IsAuthored());
+    ASSERT_FALSE(usdMeshWithCreaseSupport.GetCornerSharpnessesAttr().IsAuthored());
+
+    ASSERT_FALSE(usdMeshWithCreaseSupport.GetCreaseIndicesAttr().IsAuthored());
+    ASSERT_FALSE(usdMeshWithCreaseSupport.GetCreaseLengthsAttr().IsAuthored());
+    ASSERT_FALSE(usdMeshWithCreaseSupport.GetCreaseSharpnessesAttr().IsAuthored());
+
+    // Finally, test that crease support is not enabled on the Max side if there are no USD creases
+    // authored.
+    MNMesh                     reimportedMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reimportedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    ASSERT_FALSE(reimportedMesh.vertexFloat(VDATA_CREASE));
+    ASSERT_FALSE(reimportedMesh.edgeFloat(EDATA_CREASE));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/CreaseDataConversionTests/NoCreaseDataConversion.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(CreaseDataConversionTests, OutputCreasesAtTimeCode)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    // Prepare 3ds max edge creasing support.
+    float* eCreaseData = cube.edgeFloat(EDATA_CREASE);
+    if (!eCreaseData) {
+        cube.setEDataSupport(EDATA_CREASE);
+        eCreaseData = cube.edgeFloat(EDATA_CREASE);
+        ASSERT_TRUE(eCreaseData);
+    }
+
+    // Prepare 3ds max vertex creasing support.
+    float* vCreaseData = cube.vertexFloat(VDATA_CREASE);
+    if (!vCreaseData) {
+        cube.setVDataSupport(VDATA_CREASE);
+        vCreaseData = cube.vertexFloat(VDATA_CREASE);
+        ASSERT_TRUE(vCreaseData);
+    }
+
+    // Helper to test the export of vertex and edge creases at a specific USD timecodes.
+    // The seed is used to generate different crease sharpness values.
+    // The creaseCount is used to control how many vertex/edge creases are created.
+    // It is necessary to test with different values for seed/creaseCount at each timecode, so that
+    // we know for sure that the values fetched back from USD, which we are validating against,
+    // are not just interpolated from a different timecode.
+    const auto testAt = [&](const pxr::UsdTimeCode& timeCode, float seed, int creaseCount) {
+        // Assign some crease data to a few edges and vertices.
+        pxr::VtIntArray eIndices;
+        for (int i = 0; i < creaseCount; ++i) {
+            vCreaseData[i] = float(i + 1) * seed;
+            eCreaseData[i] = float(i + 1) * seed;
+            eIndices.push_back(cube.e[i].v1);
+            eIndices.push_back(cube.e[i].v2);
+        }
+
+        MaxUsd::MeshConverter                         converter;
+        std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+        MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+        converter.ConvertToUSDMesh(
+            MaxUsd::MeshFacade { &cube },
+            stage,
+            path,
+            MaxUsd::MaxMeshConversionOptions {},
+            usdMesh,
+            timeCode,
+            materialIdToFacesMap,
+            false,
+            intervals);
+
+        pxr::VtIntArray   cornerIndices, creaseIndices, creaseLengths;
+        pxr::VtFloatArray cornerSharpnesses, creaseSharpnesses;
+
+        // Max creases are in [0.0, 1.0], USD creases are in [0.0, 10.0].
+        const float maxToUsdCrease = 10.0f;
+
+        // Check that vertex creases where correctly exported at the given timecode.
+        usdMesh.GetCornerIndicesAttr().Get(&cornerIndices, timeCode);
+        usdMesh.GetCornerSharpnessesAttr().Get(&cornerSharpnesses, timeCode);
+        ASSERT_TRUE(cornerIndices.size() == cornerSharpnesses.size());
+        for (int i = 0; i < creaseCount; ++i) {
+            EXPECT_EQ(cornerIndices[i], i);
+            EXPECT_EQ(cornerSharpnesses[i], vCreaseData[i] * maxToUsdCrease);
+        }
+
+        // Check that edge creases where correctly exported at the given timecode.
+        usdMesh.GetCreaseIndicesAttr().Get(&creaseIndices, timeCode);
+        usdMesh.GetCreaseLengthsAttr().Get(&creaseLengths, timeCode);
+        usdMesh.GetCreaseSharpnessesAttr().Get(&creaseSharpnesses, timeCode);
+        ASSERT_TRUE(creaseIndices.size() == 2 * creaseLengths.size());
+        ASSERT_TRUE(creaseLengths.size() == creaseSharpnesses.size());
+        for (int i = 0; i < creaseCount; ++i) {
+            EXPECT_EQ(creaseLengths[i], 2);
+            EXPECT_EQ(creaseSharpnesses[i], eCreaseData[i] * maxToUsdCrease);
+        }
+        EXPECT_EQ(creaseIndices, eIndices);
+    };
+
+    testAt(pxr::UsdTimeCode::Default(), 0.1f, 2);
+    testAt(pxr::UsdTimeCode(1), 0.15f, 3);
+    testAt(pxr::UsdTimeCode(2), 0.20f, 4);
+}
diff --git a/src/Tests/Unit/MaxUsd.MapChannelConversion.test.cpp b/src/Tests/Unit/MaxUsd.MapChannelConversion.test.cpp
new file mode 100644
index 0000000..d53ea2b
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MapChannelConversion.test.cpp
@@ -0,0 +1,108 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+TEST(MapChannelConversionTests, MapChannelsConversion)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    // Export all maps.
+    cube.SetMapNum(MAX_MESHMAPS);
+    for (int i = -NUM_HIDDENMAPS; i < MAX_MESHMAPS; ++i) {
+        // Initialize with defaults depending on the channel.
+        // MAP_ALPA : Vertices fully opaque 1.0f.
+        // MAP_SHADING : White (1.0f,1.0f,0.f).
+        // 0 (vertex color): White (1.0f,1.0f,0.f)
+        // UV channels : Basic planar mapping.
+        cube.InitMap(i);
+        const auto& config = options.GetChannelPrimvarConfig(i);
+        // Force the default mapping.
+        options.SetChannelPrimvarConfig(
+            i,
+            MaxUsd::MappedAttributeBuilder::Config(
+                config.GetPrimvarName(), config.GetPrimvarType(), false));
+    }
+
+    MaxUsd::MeshConverter                         converter;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    const std::vector<pxr::UsdGeomPrimvar> primvars
+        = pxr::UsdGeomPrimvarsAPI(usdMesh).GetAuthoredPrimvars();
+    ASSERT_EQ(cube.MNum() + NUM_HIDDENMAPS, primvars.size());
+
+    // Test using the default mappings.
+    for (int i = -NUM_HIDDENMAPS; i < MAX_MESHMAPS; ++i) {
+        const auto& config = options.GetChannelPrimvarConfig(i);
+
+        auto primvar
+            = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim()).GetPrimvar(config.GetPrimvarName());
+        ASSERT_TRUE(primvar.IsDefined());
+        EXPECT_EQ(
+            MaxUsd::MappedAttributeBuilder::GetValueTypeName(config.GetPrimvarType()),
+            primvar.GetTypeName());
+
+        switch (MaxUsd::MappedAttributeBuilder::GetTypeDimension(config.GetPrimvarType())) {
+        case 1: {
+            pxr::VtFloatArray values;
+            primvar.Get(&values);
+            EXPECT_FALSE(values.empty());
+            break;
+        }
+        case 2: {
+            pxr::VtVec2fArray values;
+            primvar.Get(&values);
+            EXPECT_FALSE(values.empty());
+            break;
+        }
+        case 3: {
+            pxr::VtVec3fArray values;
+            primvar.Get(&values);
+            EXPECT_FALSE(values.empty());
+            break;
+        }
+        }
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MapChannelConversionTests/AllChannels.usda");
+    stage->Export(exportPath);
+#endif
+}
+// Test
diff --git a/src/Tests/Unit/MaxUsd.MappedAttributeBuilder.test.cpp b/src/Tests/Unit/MaxUsd.MappedAttributeBuilder.test.cpp
new file mode 100644
index 0000000..a4dd1f4
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MappedAttributeBuilder.test.cpp
@@ -0,0 +1,676 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/MappedAttributeBuilder.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+using namespace MaxUsd;
+
+TEST(MappedAttributeBuilderTests, GetValueTypeName)
+{
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::TexCoord2fArray),
+        pxr::SdfValueTypeNames->TexCoord2fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::TexCoord3fArray),
+        pxr::SdfValueTypeNames->TexCoord3fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::FloatArray),
+        pxr::SdfValueTypeNames->FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::Float2Array),
+        pxr::SdfValueTypeNames->Float2Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::Float3Array),
+        pxr::SdfValueTypeNames->Float3Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type::Color3fArray),
+        pxr::SdfValueTypeNames->Color3fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetValueTypeName(MappedAttributeBuilder::Type(-1)),
+        pxr::SdfValueTypeNames->Float3Array);
+}
+
+TEST(MappedAttributeBuilderTests, GetTypeDimension)
+{
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::TexCoord2fArray), 2);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::TexCoord3fArray), 3);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::FloatArray), 1);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::Float2Array), 2);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::Float3Array), 3);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type::Color3fArray), 3);
+    EXPECT_EQ(MappedAttributeBuilder::GetTypeDimension(MappedAttributeBuilder::Type(-1)), 3);
+}
+
+TEST(MappedAttributeBuilderTests, GetHigherDimensionType)
+{
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::FloatArray, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::FloatArray, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::FloatArray, 2),
+        MappedAttributeBuilder::Type::Float2Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::FloatArray, 3),
+        MappedAttributeBuilder::Type::Float3Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::FloatArray, 4),
+        MappedAttributeBuilder::Type::Float3Array);
+
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float2Array, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float2Array, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float2Array, 2),
+        MappedAttributeBuilder::Type::Float2Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float2Array, 3),
+        MappedAttributeBuilder::Type::Float3Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float2Array, 4),
+        MappedAttributeBuilder::Type::Float3Array);
+
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float3Array, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float3Array, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float3Array, 2),
+        MappedAttributeBuilder::Type::Float2Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float3Array, 3),
+        MappedAttributeBuilder::Type::Float3Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Float3Array, 4),
+        MappedAttributeBuilder::Type::Float3Array);
+
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(
+            MappedAttributeBuilder::Type::TexCoord2fArray, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord2fArray, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord2fArray, 2),
+        MappedAttributeBuilder::Type::TexCoord2fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord2fArray, 3),
+        MappedAttributeBuilder::Type::TexCoord3fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord2fArray, 4),
+        MappedAttributeBuilder::Type::TexCoord3fArray);
+
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(
+            MappedAttributeBuilder::Type::TexCoord3fArray, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord3fArray, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord3fArray, 2),
+        MappedAttributeBuilder::Type::TexCoord2fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord3fArray, 3),
+        MappedAttributeBuilder::Type::TexCoord3fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::TexCoord3fArray, 4),
+        MappedAttributeBuilder::Type::TexCoord3fArray);
+
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Color3fArray, -1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Color3fArray, 1),
+        MappedAttributeBuilder::Type::FloatArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Color3fArray, 2),
+        MappedAttributeBuilder::Type::Float2Array);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Color3fArray, 3),
+        MappedAttributeBuilder::Type::Color3fArray);
+    EXPECT_EQ(
+        MappedAttributeBuilder::GetEquivalentType(MappedAttributeBuilder::Type::Color3fArray, 4),
+        MappedAttributeBuilder::Type::Color3fArray);
+}
+
+TEST(MappedAttributeBuilderTests, ConstantPrimvar)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values;
+    values.emplace_back(1.f, 1.f, 1.f);
+    // All face-vertex pointing to the same data.
+    auto mappedData = std::make_shared<MappedAttributeBuilder::MappedData>(
+        values.data(), values.size(), std::make_shared<std::vector<int>>(24, 0));
+
+    MappedAttributeBuilder primvarBuilder(MaxUsd::MeshFacade { &cube }, mappedData);
+
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim()).GetPrimvar(config.GetPrimvarName());
+
+    ASSERT_TRUE(primvar.IsDefined());
+    EXPECT_EQ(primvar.GetInterpolation(), pxr::UsdGeomTokens->constant);
+    EXPECT_EQ(primvar.IsIndexed(), false);
+    /// MappedAttributeBuilder::Type::Float3Array will resolve to a pxr::VtVec3fArray
+    pxr::VtVec3fArray primValues;
+    primvar.Get(&primValues);
+    EXPECT_EQ(primValues.size(), 1);
+    EXPECT_EQ(primValues[0], pxr::GfVec3f(values[0].x, values[0].y, values[0].z));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/ConstantPrimvar.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MappedAttributeBuilderTests, VertexPrimvar_Indexed)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values(4);
+    float               nextValue = 0.f;
+    std::generate(
+        values.begin(), values.end(), [&nextValue]() { return Point3(nextValue++, 0.f, 0.f); });
+
+    auto faceDataIndices = std::make_shared<std::vector<int>>(24);
+    int  faceVertex = 0;
+    for (int i = 0; i < cube.FNum(); i++) {
+        const auto face = cube.F(i);
+        for (int j = 0; j < face->deg; j++) {
+            int vertexIndex = face->vtx[j];
+            (*faceDataIndices)[faceVertex++]
+                = vertexIndex % 2; // even/odd vertices share the same data
+        }
+    }
+
+    MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &cube },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            values.data(), values.size(), faceDataIndices));
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                       .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+
+    ASSERT_TRUE(primvar.IsDefined());
+    EXPECT_EQ(primvar.GetInterpolation(), pxr::UsdGeomTokens->vertex);
+    EXPECT_TRUE(primvar.IsIndexed());
+    /// MappedAttributeBuilder::Type::Float3Array will resolve to a pxr::VtVec3fArray
+    pxr::VtVec3fArray primvarValues;
+    primvar.Get(&primvarValues);
+    EXPECT_EQ(primvarValues.size(), 4);
+
+    for (int i = 0; i < primvarValues.size(); i++) {
+        EXPECT_EQ(primvarValues[i], pxr::GfVec3f(values[i].x, values[i].y, values[i].z));
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/VertexPrimvar_Indexed.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+void VertexPrimvar_Test(bool ordered)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values(8);
+    float               nextValue = 0.f;
+    // All values are different. One piece of data per vertex, we can avoid an index by using the
+    // same order as vertices (as if the indexing was [0,1,2,3,4,5,7].
+    std::generate(
+        values.begin(), values.end(), [&nextValue]() { return Point3(nextValue++, 0.f, 0.f); });
+
+    auto faceDataIndices = std::make_shared<std::vector<int>>(24);
+
+    std::vector<Point3> expectedDataArray;
+    expectedDataArray.reserve(8);
+
+    // Test simple case, data is already in the same order as the vertices (i.e. vertex indices ==
+    // data indices)
+    if (ordered) {
+        expectedDataArray = values;
+        int faceVertex = 0;
+        for (int i = 0; i < cube.FNum(); i++) {
+            const auto face = cube.F(i);
+            for (int j = 0; j < face->deg; j++) {
+                int vertexIndex = face->vtx[j];
+                (*faceDataIndices)[faceVertex++] = vertexIndex;
+            }
+        }
+    }
+    // Data is ordered differently, but the count is the same so it can just be reordered to avoid
+    // the need for an index.
+    else {
+        std::map<int, int> vertexIndexToDataIndex;
+        int                faceVertex = 0;
+        int                nextDataIndex = 0;
+        for (int i = 0; i < cube.FNum(); i++) {
+            const auto face = cube.F(i);
+            for (int j = 0; j < face->deg; j++) {
+                int vertexIndex = face->vtx[j];
+                int dataIndex;
+                // Make sure we use the same data index for the same vertex.
+                const auto it = vertexIndexToDataIndex.find(vertexIndex);
+                if (it != vertexIndexToDataIndex.end()) {
+                    dataIndex = it->second;
+                } else {
+                    dataIndex = nextDataIndex++;
+                    vertexIndexToDataIndex[vertexIndex] = dataIndex;
+                }
+                (*faceDataIndices)[faceVertex++] = dataIndex;
+            }
+        }
+        // The ordered map's keys are the vertex indices, so this will be the order outputted to
+        // the primvar to match the vertices.
+        for (auto const& entry : vertexIndexToDataIndex) {
+            expectedDataArray.push_back(values[entry.second]);
+        }
+    }
+
+    MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &cube },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            values.data(), values.size(), faceDataIndices));
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim()).GetPrimvar(config.GetPrimvarName());
+
+    ASSERT_TRUE(primvar.IsDefined());
+    EXPECT_EQ(primvar.GetInterpolation(), pxr::UsdGeomTokens->vertex);
+    // No indexing used!
+    EXPECT_FALSE(primvar.IsIndexed());
+    /// MappedAttributeBuilder::Type::Float3Array will resolve to a pxr::VtVec3fArray
+    pxr::VtVec3fArray primvarValues;
+    primvar.Get(&primvarValues);
+    EXPECT_EQ(primvarValues.size(), 8);
+
+    for (int i = 0; i < primvarValues.size(); i++) {
+        EXPECT_EQ(
+            primvarValues[i],
+            pxr::GfVec3f(expectedDataArray[i].x, expectedDataArray[i].y, expectedDataArray[i].z));
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/VertexPrimvar_Indexed_ordered_");
+    exportPath.append(std::to_string(ordered));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MappedAttributeBuilderTests, VertexPrimvar_Ordered) { VertexPrimvar_Test(true); }
+
+TEST(MappedAttributeBuilderTests, VertexPrimvar_Unordered) { VertexPrimvar_Test(false); }
+
+TEST(MappedAttributeBuilderTests, FaceVaryingPrimvarIndexed)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values;
+    values.emplace_back(1.f, 1.f, 1.f);
+    values.emplace_back(2.f, 2.f, 2.f);
+    // The first face-vertex uses values[0], all others values[1]. This means one of the corners of
+    // the cube will not have all its face-vertices pointing to the same data.
+    auto faceDataIndices = std::make_shared<std::vector<int>>(24, 1);
+    (*faceDataIndices)[0] = 0;
+
+    MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &cube },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            values.data(), values.size(), faceDataIndices));
+
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                       .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+
+    ASSERT_TRUE(primvar.IsDefined());
+    EXPECT_EQ(primvar.GetInterpolation(), pxr::UsdGeomTokens->faceVarying);
+    EXPECT_EQ(primvar.IsIndexed(), true);
+    /// MappedAttributeBuilder::Type::Float3Array will resolve to a pxr::VtVec3fArray
+    pxr::VtVec3fArray primvarValues;
+    primvar.Get(&primvarValues);
+    EXPECT_EQ(primvarValues.size(), 2);
+    EXPECT_EQ(primvarValues[0], pxr::GfVec3f(values[0].x, values[0].y, values[0].z));
+    EXPECT_EQ(primvarValues[1], pxr::GfVec3f(values[1].x, values[1].y, values[1].z));
+
+    pxr::VtIntArray primvarIndices;
+    primvar.GetIndices(&primvarIndices);
+    EXPECT_EQ(primvarIndices[0], 0);
+    EXPECT_TRUE(std::all_of(
+        primvarIndices.begin() + 1, primvarIndices.end(), [](int idx) { return idx == 1; }));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/FaceVaryingPrimvarIndexed.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+void FaceVaryingPrimvar_Test(bool ordered)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values(24);
+    float               nextValue = 0.f;
+    std::generate(
+        values.begin(), values.end(), [&nextValue]() { return Point3(nextValue++, 0.f, 0.f); });
+
+    auto faceDataIndices = std::make_shared<std::vector<int>>(24);
+    // As long as we have 24 values, i.e. one piece of data for each face-vertex on the cube, we
+    // should not need indexing. We just need to make sure the data is reordered if the order on
+    // data indices doesn't match the order in face indices. If testing unordered, go in reverse
+    // order.
+    int faceVertex = ordered ? 0 : int(faceDataIndices->size()) - 1;
+    int increment = ordered ? 1 : -1;
+    for (int i = 0; i < cube.FNum(); i++) {
+        const auto face = cube.F(i);
+        for (int j = 0; j < face->deg; j++) {
+            (*faceDataIndices)[faceVertex] = faceVertex;
+            faceVertex += increment;
+        }
+    }
+
+    MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &cube },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            values.data(), values.size(), faceDataIndices));
+
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim()).GetPrimvar(config.GetPrimvarName());
+
+    ASSERT_TRUE(primvar.IsDefined());
+    EXPECT_EQ(primvar.GetInterpolation(), pxr::UsdGeomTokens->faceVarying);
+    EXPECT_EQ(primvar.IsIndexed(), false);
+
+    pxr::VtVec3fArray primvarValues;
+    primvar.Get(&primvarValues);
+    EXPECT_EQ(primvarValues.size(), 24);
+
+    for (int i = ordered ? 0 : int(faceDataIndices->size()) - 1; i < primvarValues.size();
+         i += increment) {
+        EXPECT_EQ(primvarValues[i], pxr::GfVec3f(values[i].x, values[i].y, values[i].z));
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/FaceVaryingPrimvar_Ordered_");
+    exportPath.append(std::to_string(ordered));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MappedAttributeBuilderTests, FaceVaryingPrimvar_Ordered) { FaceVaryingPrimvar_Test(true); }
+
+TEST(MappedAttributeBuilderTests, FaceVaryingPrimvar_Unordered) { FaceVaryingPrimvar_Test(false); }
+
+// Test that the dimension of the selected primvar types is respected on export.
+TEST(MappedAttributeBuilderTests, PrimvarExportDimensions)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    auto       usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto       cube = TestUtils::CreateCube(false);
+
+    std::vector<Point3> values;
+    values.push_back(Point3(1.f, 2.f, 3.f));
+    MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &cube },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            values.data(), values.size(), std::make_shared<std::vector<int>>(24, 0)));
+
+    {
+        MappedAttributeBuilder::Config config { pxr::TfToken("float1"),
+                                                MappedAttributeBuilder::Type::FloatArray,
+                                                false };
+        primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+        const auto primvar1 = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                                  .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+        EXPECT_EQ(pxr::SdfValueTypeNames->FloatArray, primvar1.GetTypeName());
+        // Upon setting the primvar values, if the type was not right, nothing will be set.
+        pxr::VtFloatArray unidimensionalValues;
+        primvar1.Get(&unidimensionalValues);
+        EXPECT_FALSE(unidimensionalValues.empty());
+    }
+
+    {
+        MappedAttributeBuilder::Config config { pxr::TfToken("float2"),
+                                                MappedAttributeBuilder::Type::Float2Array,
+                                                false };
+        primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+        const auto primvar2 = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                                  .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+        EXPECT_EQ(pxr::SdfValueTypeNames->Float2Array, primvar2.GetTypeName());
+        // Upon setting the primvar values, if the type was not right, nothing will be set.
+        pxr::VtVec2fArray bidimensionalValues;
+        primvar2.Get(&bidimensionalValues);
+        EXPECT_FALSE(bidimensionalValues.empty());
+    }
+
+    {
+        MappedAttributeBuilder::Config config { pxr::TfToken("float3"),
+                                                MappedAttributeBuilder::Type::Float3Array,
+                                                false };
+        primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+        const auto primvar3 = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                                  .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+        EXPECT_EQ(pxr::SdfValueTypeNames->Float3Array, primvar3.GetTypeName());
+        // Upon setting the primvar values, if the type was not right, nothing will be set.
+        pxr::VtVec3fArray tridimensionalValues;
+        primvar3.Get(&tridimensionalValues);
+        EXPECT_FALSE(tridimensionalValues.empty());
+    }
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/PrimvarExportDimensions.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MappedAttributeBuilderTests, BuildMappedAttributeAtTimeCode)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/BuildMappedAttributeAtTimeCode");
+
+    auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto quad = TestUtils::CreateQuad();
+
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+
+    // Sets up the primvar indices and values on the usdMesh at a specific timecode, using a primvar
+    // builder..
+    auto setupPrimvarAtTimeCode = [&config, &quad, &usdMesh](
+                                      const std::vector<int>&    indices,
+                                      const std::vector<Point3>& values,
+                                      const pxr::UsdTimeCode&    timeCode) {
+        const MappedAttributeBuilder primvarBuilder(
+            MaxUsd::MeshFacade { &quad },
+            std::make_shared<MappedAttributeBuilder::MappedData>(
+                values.data(), values.size(), std::make_shared<std::vector<int>>(indices)));
+        primvarBuilder.BuildPrimvar(usdMesh, config, timeCode, false);
+    };
+
+    // Make sure to use different indices/values at each timecode, to be certain we are not
+    // validating against interpolated values later.
+    setupPrimvarAtTimeCode(
+        std::vector<int> { 0, 1, 0, 1 },
+        std::vector<Point3> { Point3(0.f, 0.f, 0.f), Point3(1.f, 1.f, 1.f) },
+        pxr::UsdTimeCode::Default());
+    setupPrimvarAtTimeCode(
+        std::vector<int> { 1, 1, 0, 0 },
+        std::vector<Point3> { Point3(2.f, 2.f, 2.f), Point3(3.f, 3.f, 3.f) },
+        pxr::UsdTimeCode(1));
+    setupPrimvarAtTimeCode(
+        std::vector<int> { 0, 0, 1, 1 },
+        std::vector<Point3> { Point3(4.f, 4.f, 4.f), Point3(5.f, 5.f, 5.f) },
+        pxr::UsdTimeCode(2));
+
+    // Validate that the expected primvar values and indices are found at each timecode...
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                       .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+
+    // Default
+    pxr::VtVec3fArray primvarValuesAtDefault;
+    primvar.Get(&primvarValuesAtDefault, pxr::UsdTimeCode::Default());
+    pxr::VtIntArray primvarIndicesAtDefault;
+    primvar.GetIndices(&primvarIndicesAtDefault, pxr::UsdTimeCode::Default());
+    const auto expectedValuesAtDefault = pxr::VtVec3fArray { { 0.f, 0.f, 0.f }, { 1.f, 1.f, 1.f } };
+    EXPECT_EQ(primvarValuesAtDefault, expectedValuesAtDefault);
+    const auto expectedIndicesAtDefault = pxr::VtIntArray { 0, 1, 0, 1 };
+    EXPECT_EQ(primvarIndicesAtDefault, expectedIndicesAtDefault);
+
+    // Timecode 1
+    pxr::VtVec3fArray primvarValuesAt1;
+    primvar.Get(&primvarValuesAt1, pxr::UsdTimeCode(1));
+    pxr::VtIntArray primvarIndicesAt1;
+    primvar.GetIndices(&primvarIndicesAt1, pxr::UsdTimeCode(1));
+    const auto expectedValuesAt1 = pxr::VtVec3fArray { { 2.f, 2.f, 2.f }, { 3.f, 3.f, 3.f } };
+    EXPECT_EQ(primvarValuesAt1, expectedValuesAt1);
+    const auto expectedIndicesAt1 = pxr::VtIntArray { 1, 1, 0, 0 };
+    EXPECT_EQ(primvarIndicesAt1, expectedIndicesAt1);
+
+    // Timecode 2
+    pxr::VtVec3fArray primvarValuesAt2;
+    primvar.Get(&primvarValuesAt2, pxr::UsdTimeCode(2));
+    pxr::VtIntArray primvarIndicesAt2;
+    primvar.GetIndices(&primvarIndicesAt2, pxr::UsdTimeCode(2));
+    const auto expectedValuesAt2 = pxr::VtVec3fArray { { 4.f, 4.f, 4.f }, { 5.f, 5.f, 5.f } };
+    EXPECT_EQ(primvarValuesAt2, expectedValuesAt2);
+    const auto expectedIndicesAt2 = pxr::VtIntArray { 0, 0, 1, 1 };
+    EXPECT_EQ(primvarIndicesAt2, expectedIndicesAt2);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/BuildMappedAttributeAtTimeCode.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MappedAttributeBuilderTests, VertexPrimvar_UnusedVertices)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/VertexPrimvarUnusedVertices");
+
+    auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    MNMesh meshWithUnusedVerts;
+    meshWithUnusedVerts.setNumFaces(1);
+    meshWithUnusedVerts.setNumVerts(11);
+    // Bunch of unused vertices, purposefully add some at the beginning, middle and end.
+    meshWithUnusedVerts.V(0)->p = Point3(99.f, 99.f, 99.f); // Unused
+    meshWithUnusedVerts.V(1)->p = Point3(99.f, 99.f, 99.f); // Unused
+    meshWithUnusedVerts.V(2)->p = Point3(-1.f, -1.f, 0.f);
+    meshWithUnusedVerts.V(3)->p = Point3(1.f, -1.f, 00.f);
+    meshWithUnusedVerts.V(4)->p = Point3(99.f, 99.f, 99.f); // Unused
+    meshWithUnusedVerts.V(5)->p = Point3(99.f, 99.f, 99.f); // Unused
+    meshWithUnusedVerts.V(6)->p = Point3(1.f, 1.f, 0.f);
+    meshWithUnusedVerts.V(7)->p = Point3(99.f, 99.f, 99.f); // Unused
+    meshWithUnusedVerts.V(8)->p = Point3(-1.f, 1.f, 0.f);
+    meshWithUnusedVerts.V(9)->p = Point3(99.f, 99.f, 99.f);     // Unused
+    meshWithUnusedVerts.V(10)->p = Point3(-99.f, -99.f, -99.f); // Unused
+    meshWithUnusedVerts.F(0)->SetDeg(4);
+    meshWithUnusedVerts.F(0)->vtx[0] = 2;
+    meshWithUnusedVerts.F(0)->vtx[1] = 3;
+    meshWithUnusedVerts.F(0)->vtx[2] = 6;
+    meshWithUnusedVerts.F(0)->vtx[3] = 8;
+    meshWithUnusedVerts.FillInMesh();
+
+    MappedAttributeBuilder::Config config { pxr::TfToken("testPrimvar"),
+                                            MappedAttributeBuilder::Type::Float3Array };
+
+    auto mappedValues = std::vector<Point3> { Point3(0.f, 0.f, 0.f), Point3(1.f, 1.f, 1.f) };
+    const MappedAttributeBuilder primvarBuilder(
+        MaxUsd::MeshFacade { &meshWithUnusedVerts },
+        std::make_shared<MappedAttributeBuilder::MappedData>(
+            mappedValues.data(),
+            2,
+            std::make_shared<std::vector<int>>(std::vector<int> { 0, 1, 0, 1 })));
+    primvarBuilder.BuildPrimvar(usdMesh, config, pxr::UsdTimeCode::Default(), false);
+
+    auto primvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                       .GetPrimvar(pxr::TfToken(config.GetPrimvarName()));
+
+    pxr::VtVec3fArray primvarValuesAtDefault;
+    primvar.Get(&primvarValuesAtDefault, pxr::UsdTimeCode::Default());
+    pxr::VtIntArray primvarIndicesAtDefault;
+    primvar.GetIndices(&primvarIndicesAtDefault, pxr::UsdTimeCode::Default());
+    const auto expectedValuesAtDefault = pxr::VtVec3fArray { { 0.f, 0.f, 0.f }, { 1.f, 1.f, 1.f } };
+    EXPECT_EQ(primvarValuesAtDefault, expectedValuesAtDefault);
+    const auto expectedIndicesAtDefault = pxr::VtIntArray { 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0 };
+    EXPECT_EQ(primvarIndicesAtDefault, expectedIndicesAtDefault);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MappedAttributeBuilder/VertexPrimvarUnusedVertices.usda");
+    stage->Export(exportPath);
+#endif
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.MaterialUtils.test.cpp b/src/Tests/Unit/MaxUsd.MaterialUtils.test.cpp
new file mode 100644
index 0000000..16fe2e2
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MaterialUtils.test.cpp
@@ -0,0 +1,53 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "Mocks/MockINode.h"
+#include "Mocks/MockStdMat.h"
+#include "TestUtils.h"
+
+#include <MaxUsd/Utilities/MaterialUtils.h>
+
+#include <gtest/gtest.h>
+
+using namespace MaxUsd;
+
+TEST(MaterialUtilsTest, CreateSubsetName)
+{
+    // null material should return _{materialId}_
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(nullptr, 0), "_1_");
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(nullptr, 5), "_6_");
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(nullptr, 10), "_11_");
+
+    // single material should return _{materialId}_
+    MSTR        mtlName = L"some material name";
+    std::string stringMtlName = mtlName.ToCStr().data();
+    MockStdMat  mockMtl;
+    Mtl*        mtl = static_cast<Mtl*>(&mockMtl);
+    mtl->SetName(mtlName);
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(mtl, 0), "_1_");
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(mtl, 5), "_6_");
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(mtl, 10), "_11_");
+
+    // multi material without slot name return _{materialId}_{subMaterialName}
+    MockMultiMtl* mockMultiMtl = new MockMultiMtl();
+    Mtl*          multiMtl = static_cast<Mtl*>(mockMultiMtl);
+    mockMultiMtl->AddMtl(mtl, 2, nullptr);
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(mockMultiMtl, 2), "_3_some_material_name");
+
+    // multi material with slot name should return the name
+    std::wstring slotName = L"material slot name";
+    mockMultiMtl->AddMtl(mtl, 3, slotName.c_str());
+    EXPECT_EQ(MaterialUtils::CreateSubsetName(mockMultiMtl, 3), "material_slot_name");
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.MathUtils.test.cpp b/src/Tests/Unit/MaxUsd.MathUtils.test.cpp
new file mode 100644
index 0000000..b068cff
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MathUtils.test.cpp
@@ -0,0 +1,188 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/Utilities/MathUtils.h>
+
+#include <gtest/gtest.h>
+
+using namespace MaxUsd;
+
+// Test RoundToSignificantDigit utility function
+TEST(MathUtilsTest, RoundToSignificantDigit)
+{
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(0, 6), 0.0);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(10, 1), 10.0);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(0.12345, 2), 0.12);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(1234500, 3), 1230000);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(0.00012345, 4), 0.0001235);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(1.2345, 5), 1.2345);
+    EXPECT_EQ(
+        MathUtils::RoundToSignificantDigit(std::numeric_limits<double>::max(), 6), 1.79769e+308);
+    EXPECT_EQ(
+        MathUtils::RoundToSignificantDigit(std::numeric_limits<double>::lowest(), 6),
+        -1.79769e+308);
+    EXPECT_EQ(MathUtils::RoundToSignificantDigit(2.22507e-306, 2), 2.20e-306);
+    EXPECT_EQ(std::isnan(MathUtils::RoundToSignificantDigit(2.22507e-306, 4)), true);
+}
+
+// Test RoundToPrecision utility function
+TEST(MathUtilsTest, RoundToPrecision)
+{
+    EXPECT_EQ(MathUtils::RoundToPrecision(123.1), 123.0);
+    EXPECT_EQ(MathUtils::RoundToPrecision(123.99), 124.0);
+    EXPECT_EQ(MathUtils::RoundToPrecision(999), 999);
+    EXPECT_EQ(MathUtils::RoundToPrecision(-123.1), -123.0);
+    EXPECT_EQ(MathUtils::RoundToPrecision(-123.99), -124.0);
+    EXPECT_EQ(MathUtils::RoundToPrecision(-999), -999);
+
+    EXPECT_EQ(MathUtils::RoundToPrecision(1234, 10), 1230);
+
+    EXPECT_EQ(MathUtils::RoundToPrecision(-999.9999, 0.0001), -999.9999);
+    EXPECT_EQ(MathUtils::RoundToPrecision(999.9999, 0.0001), 999.9999);
+
+    EXPECT_EQ(MathUtils::RoundToPrecision(999.9999, 0.001), 1000);
+    EXPECT_EQ(MathUtils::RoundToPrecision(-999.9999, 0.001), -1000);
+
+    EXPECT_EQ(MathUtils::RoundToPrecision(-1000.9999, 0.001), -1001);
+
+    EXPECT_EQ(MathUtils::RoundToPrecision(0.123456789, 0.1), 0.1);
+    EXPECT_EQ(MathUtils::RoundToPrecision(0.123456789, 0.01), 0.12);
+    EXPECT_EQ(MathUtils::RoundToPrecision(0.123456789, 0.001), 0.123);
+    EXPECT_EQ(MathUtils::RoundToPrecision(0.123456789, 0.000001), 0.123457);
+
+    // Zero precision, illegal, returns value as is and assert.
+    EXPECT_EQ(MathUtils::RoundToPrecision(1, 0.0), 1);
+}
+
+TEST(MathUtilsTest, IsAlmostZero)
+{
+    EXPECT_TRUE(MathUtils::IsAlmostZero(0.0f));
+    EXPECT_TRUE(MathUtils::IsAlmostZero(0.000000005f));
+    EXPECT_TRUE(MathUtils::IsAlmostZero(-0.000000005f));
+    EXPECT_TRUE(MathUtils::IsAlmostZero(FLT_EPSILON - 0.0000001f));
+    EXPECT_TRUE(MathUtils::IsAlmostZero(-FLT_EPSILON + 0.0000001f));
+
+    EXPECT_FALSE(MathUtils::IsAlmostZero(-FLT_EPSILON));
+    EXPECT_FALSE(MathUtils::IsAlmostZero(FLT_EPSILON));
+    EXPECT_FALSE(MathUtils::IsAlmostZero(-FLT_EPSILON));
+    EXPECT_FALSE(MathUtils::IsAlmostZero(10.f));
+    EXPECT_FALSE(MathUtils::IsAlmostZero(-10.f));
+}
+
+TEST(MathUtilsTest, ModifyTransformYToZUp)
+{
+    pxr::GfMatrix4d initialMatrix(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+
+    pxr::GfMatrix4d expectedResult(1, -3, 2, 4, 5, -7, 6, 8, 9, -11, 10, 12, 13, -15, 14, 16);
+
+    MathUtils::ModifyTransformYToZUp(initialMatrix);
+    TestUtils::CompareUSDMatrices(initialMatrix, expectedResult);
+}
+
+TEST(MathUtilsTest, ModifyTransformZToYUp)
+{
+    pxr::GfMatrix4d initialMatrix(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+
+    pxr::GfMatrix4d expectedResult(1, 3, -2, 4, 5, 7, -6, 8, 9, 11, -10, 12, 13, 15, -14, 16);
+
+    MathUtils::ModifyTransformZToYUp(initialMatrix);
+    TestUtils::CompareUSDMatrices(initialMatrix, expectedResult);
+}
+
+TEST(MathUtilsTest, RoundMatrixValues)
+{
+    pxr::GfMatrix4d initialMatrix(
+        12345,
+        1.23456,
+        19999,
+        0,
+        0.12345,
+        0.000001,
+        0.0000000019999,
+        -12599,
+        12345,
+        12345,
+        12345,
+        12345,
+        12345,
+        12345,
+        12345,
+        12345);
+
+    pxr::GfMatrix4d expectedResult(
+        12300,
+        1.23,
+        20000,
+        0,
+        0.123,
+        0.000001,
+        0.000000002,
+        -12600,
+        12300,
+        12300,
+        12300,
+        12300,
+        12300,
+        12300,
+        12300,
+        12300);
+
+    MathUtils::RoundMatrixValues(initialMatrix, 3);
+    TestUtils::CompareUSDMatrices(initialMatrix, expectedResult);
+
+    const Point3 initialU(12345.0f, 1.23456f, 19999.0f);
+    const Point3 initialV(0.12345, 0.000001, 0.0000000019999);
+    const Point3 initialN(-12599.0f, 0.0f, 0.0f);
+    const Point3 initialT(12345.0f, 1.23456f, 19999.0f);
+
+    const Point3 expectedU(12350.0f, 1.23500f, 20000.0f);
+    const Point3 expectedV(0.12350, 0.000001, 0.000000002);
+    const Point3 expectedN(-12600.0f, 0.0f, 0.0f);
+    const Point3 expectedT(12350.0f, 1.2350f, 20000.0f);
+
+    Matrix3 initialMatrix3(initialU, initialV, initialN, initialT);
+    Matrix3 expectedMatrix3(expectedU, expectedV, expectedN, expectedT);
+    MathUtils::RoundMatrixValues(initialMatrix3, 4);
+    EXPECT_TRUE(initialMatrix3.Equals(expectedMatrix3));
+}
+
+TEST(MathUtilsTest, IsIdentity)
+{
+    pxr::GfMatrix4d identity(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    EXPECT_TRUE(MathUtils::IsIdentity(identity));
+
+    pxr::GfMatrix4d equalIdentity(
+        1.000000001, 0.00000001, 0, 0, 0, 1, -0.00000001, 0, 0, 0, 1, 1e-8, 0, 0, 0, 1);
+    EXPECT_TRUE(MathUtils::IsIdentity(equalIdentity));
+
+    pxr::GfMatrix4d notIdentity(1, 0.00001, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    EXPECT_FALSE(MathUtils::IsIdentity(notIdentity));
+}
+
+TEST(MathUtilsTest, clamp)
+{
+    EXPECT_FLOAT_EQ(MathUtils::clamp(-1.f, 0.f, 10.f), 0.f);
+    EXPECT_EQ(MathUtils::clamp(67, 55, 300), 67);
+    EXPECT_FALSE(MathUtils::clamp(-1, FALSE, TRUE));
+    EXPECT_TRUE(
+        MathUtils::clamp(
+            static_cast<int8_t>(127),
+            std::numeric_limits<int8_t>::min(),
+            std::numeric_limits<int8_t>::max())
+        == std::numeric_limits<int8_t>::max());
+    EXPECT_EQ(MathUtils::clamp('p', 'c', 'm'), 'm');
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.MeshConversion.test.cpp b/src/Tests/Unit/MaxUsd.MeshConversion.test.cpp
new file mode 100644
index 0000000..2730696
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MeshConversion.test.cpp
@@ -0,0 +1,698 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+TEST(MeshConversionTest, SimpleCubeRoundTrip)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/cube");
+    MNMesh     cube = TestUtils::CreateCube(false);
+
+    // Test that the converted USD mesh equals the original mesh (MNMesh -> USD).
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMesh;
+    MaxUsd::MaxMeshConversionOptions options;
+    std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    TestUtils::CompareUsdAndMaxMeshes(cube, usdMesh);
+
+    // Test that the re-converted MNMesh mesh equals the USD mesh (USD -> MNMesh)
+    MNMesh                     reimportedMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reimportedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    TestUtils::CompareUsdAndMaxMeshes(reimportedMesh, usdMesh);
+}
+
+// Test conversion of non-planar MNFace to USD. In this case, the face will be
+// "made planar", i.e. it will be split into multiple faces.
+TEST(MeshConversionTest, NonPlanarFaceToUsd)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/non_planar_face");
+
+    MNMesh nonPlanarFaceMesh;
+    nonPlanarFaceMesh.setNumFaces(1);
+    nonPlanarFaceMesh.setNumVerts(4);
+    nonPlanarFaceMesh.V(0)->p = Point3(0, 0, 0);
+    nonPlanarFaceMesh.V(1)->p = Point3(0, 1, 0);
+    nonPlanarFaceMesh.V(2)->p = Point3(1, 1, 0);
+    nonPlanarFaceMesh.V(3)->p = Point3(1, 0, 1); // One of the points off the plane.
+    nonPlanarFaceMesh.F(0)->SetDeg(4);
+    nonPlanarFaceMesh.F(0)->vtx[0] = 0;
+    nonPlanarFaceMesh.F(0)->vtx[1] = 1;
+    nonPlanarFaceMesh.F(0)->vtx[2] = 2;
+    nonPlanarFaceMesh.F(0)->vtx[3] = 3;
+    nonPlanarFaceMesh.FillInMesh();
+
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMesh;
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetPreserveEdgeOrientation(true);
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &nonPlanarFaceMesh },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::VtIntArray faceVertexCount;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCount);
+
+    EXPECT_EQ(faceVertexCount.size(), 2);
+
+    // We expect that the non-planar face was split into 2 planar faces.
+    EXPECT_EQ(faceVertexCount[0], 3);
+    EXPECT_EQ(faceVertexCount[1], 3);
+
+    pxr::VtIntArray faceIndices;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceIndices);
+    EXPECT_EQ(faceIndices[0], 0);
+    EXPECT_EQ(faceIndices[1], 2);
+    EXPECT_EQ(faceIndices[2], 3);
+    EXPECT_EQ(faceIndices[3], 0);
+    EXPECT_EQ(faceIndices[4], 1);
+    EXPECT_EQ(faceIndices[5], 2);
+
+    // Vertices should be the same even though the faces are different.
+    TestUtils::CompareVertices(nonPlanarFaceMesh, usdMesh);
+}
+
+// Test conversion of concave MNFaces. Currently we do not export concave faces
+// as doing this is a source a trouble in both Max and USD view. Instead those faces
+// are "made convex" by splitting the face into multiple convex faces.
+TEST(MeshConversionTest, ConcaveFaceToUsd)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/concave_face");
+
+    MNMesh nonPlanarFaceMesh;
+    nonPlanarFaceMesh.setNumFaces(1);
+    nonPlanarFaceMesh.setNumVerts(4);
+
+    nonPlanarFaceMesh.V(0)->p = Point3(0, 0, 0);
+    nonPlanarFaceMesh.V(1)->p = Point3(0, 1, 0);
+    nonPlanarFaceMesh.V(2)->p = Point3(.1f, 0.1f, 0.f); // Makes it concave
+    nonPlanarFaceMesh.V(3)->p = Point3(1, 0, 0);
+
+    nonPlanarFaceMesh.F(0)->SetDeg(4);
+    nonPlanarFaceMesh.F(0)->vtx[0] = 0;
+    nonPlanarFaceMesh.F(0)->vtx[1] = 1;
+    nonPlanarFaceMesh.F(0)->vtx[2] = 2;
+    nonPlanarFaceMesh.F(0)->vtx[3] = 3;
+
+    nonPlanarFaceMesh.FillInMesh();
+
+    MaxUsd::MeshConverter                         converter;
+    pxr::UsdGeomMesh                              usdMesh;
+    MaxUsd::MaxMeshConversionOptions              options;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &nonPlanarFaceMesh },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::VtIntArray faceVertexCount;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCount);
+
+    // We expect that the non-planar face was split into 2 planar faces.
+    EXPECT_EQ(faceVertexCount.size(), 2);
+    EXPECT_EQ(faceVertexCount[0], 3);
+    EXPECT_EQ(faceVertexCount[1], 3);
+
+    pxr::VtIntArray faceIndices;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceIndices);
+    EXPECT_EQ(faceIndices[0], 0);
+    EXPECT_EQ(faceIndices[1], 1);
+    EXPECT_EQ(faceIndices[2], 2);
+    EXPECT_EQ(faceIndices[3], 2);
+    EXPECT_EQ(faceIndices[4], 3);
+    EXPECT_EQ(faceIndices[5], 0);
+
+    // Vertices should be the same even though the faces are different.
+    TestUtils::CompareVertices(nonPlanarFaceMesh, usdMesh);
+}
+
+// Test importing concave faces from USD.
+TEST(MeshConversionTest, ConcaveFaceFromUsd)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/concave_face");
+
+    const auto      usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    pxr::VtIntArray faceVertexCount;
+    faceVertexCount.reserve(1);
+    faceVertexCount.push_back(4);
+    usdMesh.CreateFaceVertexCountsAttr().Set(faceVertexCount);
+
+    pxr::VtIntArray faceIndices;
+    faceIndices.reserve(4);
+    faceIndices.push_back(0);
+    faceIndices.push_back(1);
+    faceIndices.push_back(2);
+    faceIndices.push_back(3);
+    usdMesh.CreateFaceVertexIndicesAttr().Set(faceIndices);
+
+    pxr::VtVec3fArray vertices;
+    vertices.reserve(4);
+    vertices.push_back(pxr::GfVec3f(0, 0, 0));
+    vertices.push_back(pxr::GfVec3f(0, 1, 0));
+    vertices.push_back(pxr::GfVec3f(.1f, 0.1f, 0.f));
+    vertices.push_back(pxr::GfVec3f(1, 0, 0));
+    usdMesh.CreatePointsAttr().Set(vertices);
+
+    MNMesh                     maxMesh;
+    MaxUsd::MeshConverter      converter;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(usdMesh, maxMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    TestUtils::CompareUsdAndMaxMeshes(maxMesh, usdMesh);
+}
+
+// Test leftHanded face orientation (rightHand is the default).
+// From the USD docs : "Orientation specifies whether the gprim's surface normal
+// should be computed using the right hand rule, or the left hand rule."
+TEST(MeshConversionTest, LeftHandedFaceOrientation)
+{
+    const auto                                    stage = pxr::UsdStage::CreateInMemory();
+    const auto                                    path = pxr::SdfPath("/object");
+    auto                                          quad = TestUtils::CreateQuad();
+    MaxUsd::MeshConverter                         converter;
+    pxr::UsdGeomMesh                              usdMesh;
+    MaxUsd::MaxMeshConversionOptions              options;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    usdMesh.CreateOrientationAttr().Set(pxr::UsdGeomTokens->leftHanded);
+
+    // Max works with a right handed coordinate system, and so uses the right hand rule
+    // to compute surface normals. To support USD geometries which explicitly specify
+    // a left handed orientation, we flip the faces on import (through the vert order).
+    MNMesh                     reconvertedQuad;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reconvertedQuad, MaxUsd::PrimvarMappingOptions {}, channelNames);
+
+    // Reconverted face should equal the original face, flipped.
+    quad.F(0)->Flip();
+    const auto degree = reconvertedQuad.F(0)->deg;
+    ASSERT_EQ(reconvertedQuad.F(0)->deg, degree);
+    for (int i = 0; i < degree; i++) {
+        EXPECT_EQ(quad.F(0)->vtx[i], reconvertedQuad.F(0)->vtx[i]);
+    }
+}
+
+// Test that "dead"/degenerate faces are not exported to USD.
+TEST(MeshConversionTest, DegenerateFacesToUsd)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/degenerate_face");
+
+    MNMesh nonPlanarFaceMesh;
+    nonPlanarFaceMesh.setNumFaces(2);
+    nonPlanarFaceMesh.setNumVerts(3);
+    nonPlanarFaceMesh.V(0)->p = Point3(0, 0, 0);
+    nonPlanarFaceMesh.V(1)->p = Point3(0, 1, 0);
+    nonPlanarFaceMesh.V(2)->p = Point3(0, 1, 1);
+
+    // Dead/Degenerate face :
+    nonPlanarFaceMesh.F(0)->SetDeg(0);
+    nonPlanarFaceMesh.F(0)->SetFlag(MN_DEAD);
+
+    // Valid face  :
+    nonPlanarFaceMesh.F(1)->SetDeg(3);
+    nonPlanarFaceMesh.F(1)->vtx[0] = 0;
+    nonPlanarFaceMesh.F(1)->vtx[1] = 1;
+    nonPlanarFaceMesh.F(1)->vtx[3] = 2;
+
+    nonPlanarFaceMesh.FillInMesh();
+    MaxUsd::MeshConverter                         converter;
+    pxr::UsdGeomMesh                              usdMesh;
+    MaxUsd::MaxMeshConversionOptions              options;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &nonPlanarFaceMesh },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    pxr::VtIntArray faceVertexCount;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCount);
+
+    EXPECT_EQ(faceVertexCount.size(), 1);
+}
+
+// Test faces with less than 3 vertices are not imported from USD.
+TEST(MeshConversionTest, DegenerateFacesFromUsd)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/degenerate_faces");
+    const auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    pxr::VtIntArray faceVertexCount;
+    faceVertexCount.reserve(3);
+    // Invalid faces :
+    faceVertexCount.push_back(0);
+    faceVertexCount.push_back(2);
+    // Valid face :
+    faceVertexCount.push_back(3);
+    usdMesh.CreateFaceVertexCountsAttr().Set(faceVertexCount);
+
+    pxr::VtIntArray faceIndices;
+    faceIndices.reserve(5);
+    // Invalid face
+    faceIndices.push_back(0);
+    faceIndices.push_back(1);
+    // Valid face
+    faceIndices.push_back(0);
+    faceIndices.push_back(1);
+    faceIndices.push_back(2);
+    usdMesh.CreateFaceVertexIndicesAttr().Set(faceIndices);
+
+    pxr::VtVec3fArray vertices;
+    vertices.reserve(3);
+    vertices.push_back(pxr::GfVec3f(0, 0, 0));
+    vertices.push_back(pxr::GfVec3f(0, 1, 0));
+    vertices.push_back(pxr::GfVec3f(0, 1, 1));
+    usdMesh.CreatePointsAttr().Set(vertices);
+
+    MNMesh                     maxMesh;
+    MaxUsd::MeshConverter      converter;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(usdMesh, maxMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+
+    EXPECT_EQ(maxMesh.FNum(), 1);
+    EXPECT_EQ(maxMesh.VNum(), 3);
+    EXPECT_EQ(maxMesh.v[0].p, Point3(0, 0, 0));
+    EXPECT_EQ(maxMesh.v[1].p, Point3(0, 1, 0));
+    EXPECT_EQ(maxMesh.v[2].p, Point3(0, 1, 1));
+}
+
+TEST(MeshConversionTest, UnconnectedVertices)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/unconnected_vertices");
+    const auto usdMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    pxr::VtIntArray faceVertexCount;
+    faceVertexCount.reserve(3);
+    faceVertexCount.push_back(3);
+    usdMesh.CreateFaceVertexCountsAttr().Set(faceVertexCount);
+
+    pxr::VtIntArray faceIndices;
+    faceIndices.push_back(0);
+    faceIndices.push_back(2);
+    faceIndices.push_back(3);
+    usdMesh.CreateFaceVertexIndicesAttr().Set(faceIndices);
+
+    pxr::VtVec3fArray vertices;
+    vertices.reserve(4);
+    vertices.push_back(pxr::GfVec3f(1, 0, 0));
+    vertices.push_back(pxr::GfVec3f(2, 2, 2)); // This vertex is not connected to any face.
+    vertices.push_back(pxr::GfVec3f(0, 1, 0));
+    vertices.push_back(pxr::GfVec3f(0, 0, 1));
+    usdMesh.CreatePointsAttr().Set(vertices);
+
+    MNMesh                     maxMesh;
+    MaxUsd::MeshConverter      converter;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(usdMesh, maxMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+
+    EXPECT_EQ(maxMesh.VNum(), 3);
+    EXPECT_EQ(maxMesh.v[0].p[0], 1);
+    EXPECT_EQ(maxMesh.v[1].p[1], 1);
+    EXPECT_EQ(maxMesh.v[2].p[2], 1);
+}
+
+TEST(MeshConversionTest, PreserveEdgeOrientation)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/plane");
+
+    // Create a square plane of 10 segments by 10.
+    MNMesh    plane = TestUtils::CreatePlane(10, 10);
+    const int NB_FACES = 100, NB_VERTS = 121;
+    ASSERT_TRUE(plane.FNum() == NB_FACES && plane.VNum() == NB_VERTS);
+
+    Matrix3 transformMat = ScaleMatrix(Point3(10, 10, 0));
+    plane.Transform(transformMat);
+
+    // Move a couple of vertices on the z axis
+    plane.V(31)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(32)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(41)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(42)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(43)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(44)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(51)->p += Point3(0.f, 0.f, -4.40147f);
+    plane.V(53)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(54)->p += Point3(0.f, 0.f, 2.52511f);
+    plane.V(62)->p += Point3(0.f, 0.f, -4.40147f);
+    plane.V(63)->p += Point3(0.f, 0.f, -4.40147f);
+    plane.V(64)->p += Point3(0.f, 0.f, 3.95149f);
+    plane.V(65)->p += Point3(0.f, 0.f, 3.95149f);
+    plane.V(74)->p += Point3(0.f, 0.f, -4.40147f);
+    plane.V(75)->p += Point3(0.f, 0.f, -4.40147f);
+    plane.V(76)->p += Point3(0.f, 0.f, 3.95149f);
+    plane.V(77)->p += Point3(0.f, 0.f, 3.95149f);
+    plane.V(84)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(85)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(87)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(88)->p += Point3(0.f, 0.f, 1.28767f);
+    plane.V(95)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(96)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(97)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(98)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(99)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(106)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(107)->p += Point3(0.f, 0.f, 4.54109f);
+    plane.V(108)->p += Point3(0.f, 0.f, 1.87727f);
+    plane.V(109)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(110)->p += Point3(0.f, 0.f, -2.66383f);
+    plane.V(120)->p += Point3(0.f, 0.f, -2.66383f);
+
+    // Test that the converted USD mesh equals the original mesh (MNMesh -> USD).
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMeshPreserve, usdMeshDontPreserve;
+    MaxUsd::MaxMeshConversionOptions options;
+    std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+    pxr::VtIntArray                  faceVertexCounts;
+
+    // Convert to USD without preserving edge orientation
+    options.SetPreserveEdgeOrientation(false);
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &plane },
+        stage,
+        path,
+        options,
+        usdMeshDontPreserve,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Compare result when not preserving
+    usdMeshDontPreserve.GetFaceVertexCountsAttr().Get(&faceVertexCounts);
+    EXPECT_EQ(faceVertexCounts.size(), NB_FACES);
+
+    // Convert to USD preserving edge orientation
+    options.SetPreserveEdgeOrientation(true);
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &plane },
+        stage,
+        path,
+        options,
+        usdMeshPreserve,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Compare result when preserving (some faces will have triangulated, creating more faces and
+    // vertices on exported mesh)
+    usdMeshPreserve.GetFaceVertexCountsAttr().Get(&faceVertexCounts);
+    EXPECT_EQ(faceVertexCounts.size(), 128);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/PreserveEdgeOrientation.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MeshConversionTest, TimeSampledUsdMesh)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/animatedMesh");
+
+    // Create and populate a Usd Mesh prim at different timeCodes with different geometry.
+    auto animatedMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+    auto setupAtTimeCode = [&](const pxr::VtVec3fArray& points,
+                               const pxr::VtIntArray&   faceCounts,
+                               const pxr::VtIntArray&   indices,
+                               const pxr::UsdTimeCode&  timeCode) {
+        animatedMesh.CreatePointsAttr().Set(points, timeCode);
+        animatedMesh.CreateFaceVertexCountsAttr().Set(faceCounts, timeCode);
+        animatedMesh.CreateFaceVertexIndicesAttr().Set(indices, timeCode);
+    };
+
+    // Default timeCode.
+    const pxr::VtVec3fArray pointsDefault
+        = { { 0.f, 0.f, 0.f }, { 0.f, 1.f, 0.f }, { 0.f, 0.f, 1.f } };
+    const pxr::VtIntArray faceCountDefault = { 3 };
+    const pxr::VtIntArray indicesDefault = { 0, 1, 2 };
+    setupAtTimeCode(pointsDefault, faceCountDefault, indicesDefault, pxr::UsdTimeCode::Default());
+
+    // TimeCode 1.
+    const pxr::VtVec3fArray points1
+        = { { 0.f, 0.f, 0.f }, { 0.f, 1.f, 0.f }, { 0.f, 0.f, 1.f }, { 0.f, 1.f, 1.f } };
+    const pxr::VtIntArray faceCount1 = { 3, 3 };
+    const pxr::VtIntArray indices1 = { 0, 1, 2, 2, 1, 3 };
+    setupAtTimeCode(points1, faceCount1, indices1, 1);
+
+    // TimeCode 2.
+    const pxr::VtVec3fArray points2 = { { 0.f, 0.f, 0.f },
+                                        { 0.f, 1.f, 0.f },
+                                        { 0.f, 0.f, 1.f },
+                                        { 0.f, 1.f, 1.f },
+                                        { 0.f, 1.f, 2.f } };
+    const pxr::VtIntArray   faceCount2 = { 3, 3, 3 };
+    const pxr::VtIntArray   indices2 = { 0, 1, 2, 2, 1, 3, 2, 3, 4 };
+    setupAtTimeCode(points2, faceCount2, indices2, 2);
+
+    // Now test the mesh conversion process to make sure that it respects the specified timeCode.
+    auto testAtTimeCode = [&](const pxr::VtVec3fArray& points,
+                              const pxr::VtIntArray&   faceCounts,
+                              const pxr::VtIntArray&   indices,
+                              const pxr::UsdTimeCode&  timeCode) {
+        MNMesh                     maxMesh;
+        MaxUsd::MeshConverter      converter;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            animatedMesh,
+            maxMesh,
+            MaxUsd::PrimvarMappingOptions {},
+            channelNames,
+            nullptr,
+            timeCode);
+
+        ASSERT_EQ(maxMesh.VNum(), points.size());
+        ASSERT_EQ(maxMesh.FNum(), faceCounts.size());
+        for (int i = 0; i < maxMesh.VNum(); ++i) {
+            EXPECT_FLOAT_EQ(points[i][0], maxMesh.V(i)->p.x);
+            EXPECT_FLOAT_EQ(points[i][1], maxMesh.V(i)->p.y);
+            EXPECT_FLOAT_EQ(points[i][2], maxMesh.V(i)->p.z);
+        }
+
+        int idx = 0;
+        for (int i = 0; i < maxMesh.FNum(); ++i) {
+            const auto degree = maxMesh.F(i)->deg;
+            EXPECT_EQ(faceCounts[i], degree);
+            for (int j = 0; j < degree; ++j) {
+                EXPECT_EQ(indices[idx], maxMesh.F(i)->vtx[j]);
+                idx++;
+            }
+        }
+    };
+    testAtTimeCode(pointsDefault, faceCountDefault, indicesDefault, pxr::UsdTimeCode::Default());
+    testAtTimeCode(points1, faceCount1, indices1, 1);
+    testAtTimeCode(points2, faceCount2, indices2, 2);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/TimeSampledMesh.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MeshConversionTest, ConvertMaxMeshToUsdTimeCode)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/OutputTimeSampledMesh");
+
+    // Export different geometries at different timecodes on the same USD mesh.
+    // We use geometries with completely different topologies to make sure that the
+    // USD data we are validating is not from interpolation from another timecode.
+    MNMesh quad = TestUtils::CreateQuad();
+    MNMesh roof = TestUtils::CreateRoofShape();
+    MNMesh cube = TestUtils::CreateCube(false);
+
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMesh;
+    MaxUsd::MaxMeshConversionOptions options;
+    std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    // Export the meshes to different timecodes.
+    // Default
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    // TimeCode 1
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &roof },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode(1),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    // TimeCode 2
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode(2),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Validate that we get the expected geometry at each timecode.
+    EXPECT_EQ(1, usdMesh.GetFaceCount(pxr::UsdTimeCode::Default()));
+    EXPECT_EQ(2, usdMesh.GetFaceCount(pxr::UsdTimeCode(1)));
+    EXPECT_EQ(6, usdMesh.GetFaceCount(pxr::UsdTimeCode(2)));
+
+    // Extents
+    pxr::VtVec3fArray extent1;
+    usdMesh.GetExtentAttr().Get(&extent1, pxr::UsdTimeCode::Default());
+    const pxr::VtVec3fArray expectedExtent1 = { { -1.f, -1.f, 0.f }, { 1.f, 1.f, 0.0001f } };
+    EXPECT_EQ(expectedExtent1, extent1);
+
+    pxr::VtVec3fArray extent2;
+    usdMesh.GetExtentAttr().Get(&extent2, pxr::UsdTimeCode(1));
+    const pxr::VtVec3fArray expectedExtent2 = { { -1.f, -1.f, 0.f }, { 1.f, 1.f, 1.f } };
+    EXPECT_EQ(expectedExtent2, extent2);
+
+    pxr::VtVec3fArray extent3;
+    usdMesh.GetExtentAttr().Get(&extent3, pxr::UsdTimeCode(2));
+    const pxr::VtVec3fArray expectedExtent3 = { { -1.f, -1.f, -1.f }, { 1.f, 1.f, 1.f } };
+    EXPECT_EQ(expectedExtent3, extent3);
+
+    // Points
+    pxr::VtVec3fArray points1;
+    usdMesh.GetPointsAttr().Get(&points1, pxr::UsdTimeCode::Default());
+    const pxr::VtVec3fArray expectedPoints1
+        = { { -1, -1, 0 }, { 1, -1, 0 }, { 1, 1, 0 }, { -1, 1, 0 } };
+    EXPECT_EQ(expectedPoints1, points1);
+
+    pxr::VtVec3fArray points2;
+    usdMesh.GetPointsAttr().Get(&points2, pxr::UsdTimeCode(1));
+    const pxr::VtVec3fArray expectedPoints2
+        = { { -1, -1, 0 }, { 0, -1, 1 }, { 0, 1, 1 }, { -1, 1, 0 }, { 1, -1, 0 }, { 1, 1, 0 } };
+    EXPECT_EQ(expectedPoints2, points2);
+
+    pxr::VtVec3fArray points3;
+    usdMesh.GetPointsAttr().Get(&points3, pxr::UsdTimeCode(2));
+    const pxr::VtVec3fArray expectedPoints3
+        = { { -1, -1, -1 }, { 1, -1, -1 }, { -1, 1, -1 }, { 1, 1, -1 },
+            { -1, -1, 1 },  { 1, -1, 1 },  { -1, 1, 1 },  { 1, 1, 1 } };
+    EXPECT_EQ(expectedPoints3, points3);
+
+    // Face vertex counts
+    pxr::VtIntArray faceVertexCounts1;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCounts1, pxr::UsdTimeCode::Default());
+    const pxr::VtIntArray expectedFaceVertexCounts1 = { 4 };
+    EXPECT_EQ(expectedFaceVertexCounts1, faceVertexCounts1);
+
+    pxr::VtIntArray faceVertexCounts2;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCounts2, pxr::UsdTimeCode(1));
+    const pxr::VtIntArray expectedFaceVertexCounts2 = { 4, 4 };
+    EXPECT_EQ(expectedFaceVertexCounts2, faceVertexCounts2);
+
+    pxr::VtIntArray faceVertexCounts3;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCounts3, pxr::UsdTimeCode(2));
+    const pxr::VtIntArray expectedFaceVertexCounts3 = { 4, 4, 4, 4, 4, 4 };
+    EXPECT_EQ(expectedFaceVertexCounts3, faceVertexCounts3);
+
+    // Face vertex indices
+    pxr::VtIntArray faceIndices1;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceIndices1, pxr::UsdTimeCode::Default());
+    const pxr::VtIntArray expectedfaceIndices1 = { 0, 1, 2, 3 };
+    EXPECT_EQ(expectedfaceIndices1, faceIndices1);
+
+    pxr::VtIntArray faceIndices2;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceIndices2, pxr::UsdTimeCode(1));
+    const pxr::VtIntArray expectedfaceIndices2 = { 0, 1, 2, 3, 1, 4, 5, 2 };
+    EXPECT_EQ(expectedfaceIndices2, faceIndices2);
+
+    pxr::VtIntArray faceIndices3;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceIndices3, pxr::UsdTimeCode(2));
+    const pxr::VtIntArray expectedfaceIndices3
+        = { 0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6 };
+    EXPECT_EQ(expectedfaceIndices3, faceIndices3);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/TimeSampledMeshOutput.usda");
+    stage->Export(exportPath);
+#endif
+}
diff --git a/src/Tests/Unit/MaxUsd.MeshFacade.test.cpp b/src/Tests/Unit/MaxUsd.MeshFacade.test.cpp
new file mode 100644
index 0000000..287f5c4
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MeshFacade.test.cpp
@@ -0,0 +1,849 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <gtest/gtest.h>
+
+// Helper class to test MeshFacade, giving access to its protected members.
+class MeshFacadeTester : public MaxUsd::MeshFacade
+{
+public:
+    using MeshFacade::MeshFacade;
+    std::shared_ptr<std::vector<int>> GetFaceIndicesCache() { return faceIndices; };
+    int GetFaceVertexIndicesCountCache() { return faceVertexIndicesCountCache; }
+};
+
+TEST(MeshFacadeTest, VertexCount)
+{
+    // Test for MNMesh
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    ASSERT_EQ(8, polyFacade.VertexCount());
+
+    // Test for Mesh
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    ASSERT_EQ(8, triFacade.VertexCount());
+}
+
+TEST(MeshFacadeTest, Vertex)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    for (int i = 0; i < 8; i++) {
+        ASSERT_EQ(polyCube.V(i)->p, polyFacade.Vertex(i));
+        ASSERT_EQ(triCube.verts[i], triFacade.Vertex(i));
+    }
+}
+
+TEST(MeshFacadeTest, FaceCount)
+{
+    // Test for MNMesh
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    ASSERT_EQ(6, polyFacade.FaceCount());
+
+    // Test for Mesh
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    ASSERT_EQ(12, triFacade.FaceCount());
+}
+
+TEST(MeshFacadeTest, FaceDegree)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    for (int i = 0; i < 6; i++) {
+        ASSERT_EQ(4, polyFacade.FaceDegree(i));
+    }
+    for (int i = 0; i < 12; i++) {
+        ASSERT_EQ(3, triFacade.FaceDegree(i));
+    }
+}
+
+TEST(MeshFacadeTest, FaceVertex)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    for (int i = 0; i < 6; i++) {
+        for (int j = 0; j < 4; j++) {
+            ASSERT_EQ(polyCube.F(i)->vtx[j], polyFacade.FaceVertex(i, j));
+        }
+    }
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    for (int i = 0; i < 12; i++) {
+        for (int j = 0; j < 3; j++) {
+            ASSERT_EQ(triCube.faces[i].v[j], triFacade.FaceVertex(i, j));
+        }
+    }
+}
+
+TEST(MeshFacadeTest, FaceIsDead)
+{
+    MNMesh polyCube = TestUtils::CreateCube(false);
+    for (int i = 0; i < 6; i += 2) // Set even faces as DEAD.
+    {
+        polyCube.F(i)->SetFlag(MN_DEAD);
+    }
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    for (int i = 0; i < 6; i++) {
+        ASSERT_EQ(i % 2 == 0, polyFacade.FaceIsDead(i));
+    }
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    ASSERT_EQ(6, triFacade.FaceCount()); // Half the faces were not converted, as they are dead.
+    for (int i = 0; i < 6; i++) {
+        ASSERT_EQ(false, triFacade.FaceIsDead(i));
+    }
+}
+
+TEST(MeshFacadeTest, FaceIndices)
+{
+    MNMesh           polyCube = TestUtils::CreateCube(false);
+    MeshFacadeTester polyFacade { &polyCube };
+
+    ASSERT_EQ(nullptr, polyFacade.GetFaceIndicesCache().get());
+
+    std::vector<int> expectedPolyIndices
+        = { 0, 2, 3, 1, 4, 5, 7, 6, 0, 1, 5, 4, 1, 3, 7, 5, 3, 2, 6, 7, 2, 0, 4, 6 };
+    auto polyIndices = polyFacade.FaceIndices();
+    ASSERT_TRUE(std::equal(
+        expectedPolyIndices.begin(),
+        expectedPolyIndices.end(),
+        polyIndices->begin(),
+        polyIndices->end()));
+
+    // 2nd call, fetched from a cache.
+    polyIndices = polyFacade.FaceIndices();
+    ASSERT_EQ(polyFacade.GetFaceIndicesCache().get(), polyIndices.get());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MeshFacadeTester triFacade { &triCube };
+
+    ASSERT_EQ(nullptr, triFacade.GetFaceIndicesCache().get());
+
+    std::vector<int> expectedTriIndices = { 0, 2, 3, 3, 1, 0, 4, 5, 7, 7, 6, 4, 0, 1, 5, 5, 4, 0,
+                                            1, 3, 7, 7, 5, 1, 3, 2, 6, 6, 7, 3, 2, 0, 4, 4, 6, 2 };
+    auto             triIndices = triFacade.FaceIndices();
+    ASSERT_TRUE(std::equal(
+        expectedTriIndices.begin(),
+        expectedTriIndices.end(),
+        triIndices->begin(),
+        triIndices->end()));
+
+    // 2nd call, fetched from a cache.
+    triIndices = triFacade.FaceIndices();
+    ASSERT_EQ(triFacade.GetFaceIndicesCache().get(), triIndices.get());
+}
+
+TEST(MeshFacadeTest, FaceVertexIndicesCount)
+{
+    MNMesh           polyCube = TestUtils::CreateCube(false);
+    MeshFacadeTester polyFacade { &polyCube };
+
+    ASSERT_EQ(-1, polyFacade.GetFaceVertexIndicesCountCache());
+
+    ASSERT_EQ(24, polyFacade.FaceVertexIndicesCount());
+    ASSERT_EQ(24, polyFacade.GetFaceVertexIndicesCountCache());
+    ASSERT_EQ(24, polyFacade.FaceVertexIndicesCount()); // from cache.
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MeshFacadeTester triFacade { &triCube };
+
+    ASSERT_EQ(-1, triFacade.GetFaceVertexIndicesCountCache());
+
+    ASSERT_EQ(36, triFacade.FaceVertexIndicesCount());
+    ASSERT_EQ(36, triFacade.GetFaceVertexIndicesCountCache());
+    ASSERT_EQ(36, triFacade.FaceVertexIndicesCount()); // from cache.
+}
+
+TEST(MeshFacadeTest, AllSmGroups)
+{
+    MNMesh polyCube = TestUtils::CreateCube(false);
+    Mesh   triCube;
+    polyCube.OutToTri(triCube);
+
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    ASSERT_EQ(0, polyFacade.GetAllSmGroups());
+    // Generate smoothing groups (one per face with this angle treshold)
+    polyCube.AutoSmooth(0.1f, FALSE, FALSE);
+    ASSERT_EQ(7, polyFacade.GetAllSmGroups()); // 7 -> 0111 -> 3 smoothing groups needed for a cube.
+
+    MaxUsd::MeshFacade triFacade { &triCube };
+    ASSERT_EQ(0, triFacade.GetAllSmGroups());
+    // Generate smoothing groups (one per face with this angle treshold)
+    triCube.AutoSmooth(0.1f, FALSE, FALSE);
+    ASSERT_EQ(7, triFacade.GetAllSmGroups()); // 7 -> 0111 -> 3 smoothing groups needed for a cube.
+}
+
+TEST(MeshFacadeTest, LoadNormals_Specified_Mesh)
+{
+    MNMesh polyCubeSpec = TestUtils::CreateCube(true /*specifyNormals*/);
+    Mesh   triCubeSpec;
+    polyCubeSpec.OutToTri(triCubeSpec);
+
+    MeshFacadeTester triFacade { &triCubeSpec };
+
+    // Before call to load normals.
+    ASSERT_EQ(nullptr, triFacade.NormalIndices().get());
+
+    triFacade.LoadNormals();
+
+    std::vector<int> expectedIndices = { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
+                                         3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5 };
+
+    auto normalIndices = triFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, LoadNormals_Mesh_Compute_No_SG)
+{
+    MNMesh polyCubeSpec = TestUtils::CreateCube(false /*specifyNormals*/);
+    Mesh   triCubeSpec;
+    polyCubeSpec.OutToTri(triCubeSpec);
+
+    MeshFacadeTester triFacade { &triCubeSpec };
+
+    // Before call to load normals.
+    ASSERT_EQ(nullptr, triFacade.NormalIndices().get());
+
+    triFacade.LoadNormals();
+
+    auto normalIndices = triFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    std::vector<int> expectedIndices
+        = { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 17,
+            18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 };
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, LoadNormals_Specified_MNMesh)
+{
+    MNMesh polyCubeSpec = TestUtils::CreateCube(true /*specifyNormals*/);
+
+    MeshFacadeTester polyFacade { &polyCubeSpec };
+
+    // Before call to load normals.
+    ASSERT_EQ(nullptr, polyFacade.NormalIndices().get());
+
+    polyFacade.LoadNormals();
+
+    std::vector<int> expectedIndices
+        = { 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5 };
+
+    auto normalIndices = polyFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, LoadNormals_MNMesh_Compute_No_SG)
+{
+    MNMesh polyCubeSpec = TestUtils::CreateCube(false /*specifyNormals*/);
+
+    MeshFacadeTester polyFacade { &polyCubeSpec };
+
+    // Before call to load normals.
+    ASSERT_EQ(nullptr, polyFacade.NormalIndices().get());
+
+    polyFacade.LoadNormals();
+
+    auto normalIndices = polyFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    std::vector<int> expectedIndices
+        = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 };
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, LoadNormals_MNMesh_Compute_From_SG)
+{
+    MNMesh polyQuad = TestUtils::CreateCube(false);
+
+    // Generate smoothing groups.
+    polyQuad.AutoSmooth(0.1f, FALSE, FALSE);
+
+    MeshFacadeTester meshFacade { &polyQuad };
+    meshFacade.LoadNormals();
+
+    const auto normalIndices = meshFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    std::vector<int> expectedIndices
+        = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 };
+    ASSERT_EQ(24, normalIndices->size());
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, LoadNormals_Mesh_Compute_From_SG)
+{
+    MNMesh polyQuad = TestUtils::CreateCube(false);
+
+    // Generate smoothing groups.
+    polyQuad.AutoSmooth(0.1f, FALSE, FALSE);
+
+    Mesh meshQuad;
+    polyQuad.OutToTri(meshQuad);
+
+    MeshFacadeTester meshFacade { &meshQuad };
+    meshFacade.LoadNormals();
+
+    const auto normalIndices = meshFacade.NormalIndices().get();
+    ASSERT_NE(nullptr, normalIndices);
+
+    std::vector<int> expectedIndices
+        = { 0,  1,  2,  2,  3,  0,  4,  5,  6,  6,  7,  4,  8,  9,  10, 10, 11, 8,
+            12, 13, 14, 14, 15, 12, 16, 17, 18, 18, 19, 16, 20, 21, 22, 22, 23, 20 };
+    ASSERT_EQ(36, normalIndices->size());
+    ASSERT_TRUE(std::equal(
+        expectedIndices.begin(),
+        expectedIndices.end(),
+        normalIndices->begin(),
+        normalIndices->end()));
+}
+
+TEST(MeshFacadeTest, NormalCount)
+{
+    // MNMesh - unspec. normals
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyFacade.LoadNormals();
+    ASSERT_EQ(24, polyFacade.NormalCount());
+
+    // MNMesh - spec. normals
+    MNMesh             polyCubeSpec = TestUtils::CreateCube(true);
+    MaxUsd::MeshFacade polyFacadeSpec { &polyCubeSpec };
+    polyFacadeSpec.LoadNormals();
+    ASSERT_EQ(6, polyFacadeSpec.NormalCount());
+
+    // Mesh - unspec. normals
+    Mesh triCube;
+    auto polyCube2 = TestUtils::CreateCube(false);
+    polyCube2.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    triFacade.LoadNormals();
+    ASSERT_EQ(36, triFacade.NormalCount());
+
+    // Mesh - spec. normals
+    Mesh   triCubeSpec;
+    MNMesh polyCubeSpec2 = TestUtils::CreateCube(true);
+    polyCubeSpec2.OutToTri(triCubeSpec);
+    MaxUsd::MeshFacade triFacadeSpec { &triCubeSpec };
+    triFacadeSpec.LoadNormals();
+    ASSERT_EQ(6, triFacadeSpec.NormalCount());
+}
+
+TEST(MeshFacadeTest, NormalData)
+{
+    // MNMesh - unspec. normals
+    MNMesh           polyCube = TestUtils::CreateCube(false);
+    MeshFacadeTester polyFacade { &polyCube };
+    polyFacade.LoadNormals();
+    ASSERT_EQ(polyCube.GetSpecifiedNormals()->GetNormalArray(), polyFacade.NormalData());
+
+    // MNMesh - spec. normals
+    MNMesh             polyCubeSpec = TestUtils::CreateCube(true);
+    MaxUsd::MeshFacade polyFacadeSpec { &polyCubeSpec };
+    polyFacadeSpec.LoadNormals();
+    ASSERT_EQ(polyCubeSpec.GetSpecifiedNormals()->GetNormalArray(), polyFacadeSpec.NormalData());
+
+    // Mesh - unspec. normals
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MeshFacadeTester triFacade { &triCube };
+    triFacade.LoadNormals();
+    ASSERT_EQ(triCube.GetSpecifiedNormals()->GetNormalArray(), triFacade.NormalData());
+
+    // Mesh - spec. normals
+    Mesh triCubeSpec;
+    polyCubeSpec.OutToTri(triCubeSpec);
+    MaxUsd::MeshFacade triFacadeSpec { &triCubeSpec };
+    triFacadeSpec.LoadNormals();
+    ASSERT_EQ(triCubeSpec.GetSpecifiedNormals()->GetNormalArray(), triFacadeSpec.NormalData());
+}
+
+TEST(MeshFacadeTest, MapCount)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(0);
+    ASSERT_EQ(0, polyFacade.MapCount());
+    polyCube.SetMapNum(10);
+    ASSERT_EQ(10, polyFacade.MapCount());
+    polyCube.SetMapNum(MAX_MESHMAPS - 1);
+    ASSERT_EQ(MAX_MESHMAPS - 1, polyFacade.MapCount());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    triCube.setNumMaps(2);
+    ASSERT_EQ(2, triFacade.MapCount());
+    triCube.setNumMaps(10);
+    ASSERT_EQ(10, triFacade.MapCount());
+    triCube.setNumMaps(MAX_MESHMAPS - 1);
+    ASSERT_EQ(MAX_MESHMAPS - 1, triFacade.MapCount());
+}
+
+TEST(MeshFacadeTest, MapFaceCount)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(10);
+    polyCube.InitMap(5);
+    ASSERT_EQ(6, polyFacade.MapFaceCount(5));
+    ASSERT_EQ(0, polyFacade.MapFaceCount(1));
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    ASSERT_EQ(12, triFacade.MapFaceCount(5));
+    ASSERT_EQ(0, triFacade.MapFaceCount(1));
+}
+
+TEST(MeshFacadeTest, MapFaceDegree)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(10);
+    polyCube.InitMap(5);
+
+    for (int i = 0; i < 6; i++) {
+        ASSERT_EQ(4, polyFacade.MapFaceDegree(5, i));
+    }
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    for (int i = 0; i < 12; i++) {
+        ASSERT_EQ(3, triFacade.MapFaceDegree(5, i));
+    }
+}
+
+TEST(MeshFacadeTest, MapFaceVertex)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(10);
+    polyCube.InitMap(5);
+
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 0, 0), 0);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 0, 1), 2);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 0, 2), 3);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 0, 3), 1);
+
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 4, 0), 3);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 4, 1), 2);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 4, 2), 6);
+    EXPECT_EQ(polyFacade.MapFaceVertex(5, 4, 3), 7);
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 0, 0), 0);
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 0, 1), 2);
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 0, 2), 3);
+
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 4, 0), 0);
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 4, 1), 1);
+    EXPECT_EQ(triFacade.MapFaceVertex(5, 4, 2), 5);
+}
+
+TEST(MeshFacadeTest, MapData)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(10);
+    polyCube.InitMap(5);
+
+    EXPECT_EQ(polyCube.M(5)->v, polyFacade.MapData(5));
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    EXPECT_EQ(triCube.Map(5).tv, triFacade.MapData(5));
+}
+
+TEST(MeshFacadeTest, MapDataCount)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    polyCube.SetMapNum(10);
+    polyCube.InitMap(5);
+
+    EXPECT_EQ(8, polyFacade.MapDataCount(5));
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+    EXPECT_EQ(8, triFacade.MapDataCount(5));
+}
+
+TEST(MeshFacadeTest, FaceMaterial)
+{
+    MNMesh polyCube = TestUtils::CreateCube(false);
+
+    polyCube.f[0].material = 6;
+    polyCube.f[1].material = 5;
+    polyCube.f[2].material = 4;
+    polyCube.f[3].material = 3;
+    polyCube.f[4].material = 2;
+    polyCube.f[5].material = 1;
+
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    EXPECT_EQ(6, polyFacade.FaceMaterial(0));
+    EXPECT_EQ(5, polyFacade.FaceMaterial(1));
+    EXPECT_EQ(4, polyFacade.FaceMaterial(2));
+    EXPECT_EQ(3, polyFacade.FaceMaterial(3));
+    EXPECT_EQ(2, polyFacade.FaceMaterial(4));
+    EXPECT_EQ(1, polyFacade.FaceMaterial(5));
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+
+    MaxUsd::MeshFacade triFacade { &triCube };
+    EXPECT_EQ(6, triFacade.FaceMaterial(0));
+    EXPECT_EQ(6, triFacade.FaceMaterial(1));
+    EXPECT_EQ(5, triFacade.FaceMaterial(2));
+    EXPECT_EQ(5, triFacade.FaceMaterial(3));
+    EXPECT_EQ(4, triFacade.FaceMaterial(4));
+    EXPECT_EQ(4, triFacade.FaceMaterial(5));
+    EXPECT_EQ(3, triFacade.FaceMaterial(6));
+    EXPECT_EQ(3, triFacade.FaceMaterial(7));
+    EXPECT_EQ(2, triFacade.FaceMaterial(8));
+    EXPECT_EQ(2, triFacade.FaceMaterial(9));
+    EXPECT_EQ(1, triFacade.FaceMaterial(10));
+    EXPECT_EQ(1, triFacade.FaceMaterial(11));
+}
+
+TEST(MeshFacadeTest, HasCreaseSupport)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    ASSERT_TRUE(polyFacade.HasCreaseSupport());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    ASSERT_FALSE(triFacade.HasCreaseSupport());
+}
+
+TEST(MeshFacadeTest, EdgeCount)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    EXPECT_EQ(12, polyFacade.EdgeCount());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    EXPECT_EQ(0, triFacade.EdgeCount());
+}
+
+TEST(MeshFacadeTest, EdgeVertex)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+
+    EXPECT_EQ(1, polyFacade.EdgeVertex(3, true));
+    EXPECT_EQ(0, polyFacade.EdgeVertex(3, false));
+    EXPECT_EQ(7, polyFacade.EdgeVertex(6, true));
+    EXPECT_EQ(6, polyFacade.EdgeVertex(6, false));
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    EXPECT_EQ(0, triFacade.EdgeVertex(3, true));
+    EXPECT_EQ(0, triFacade.EdgeVertex(3, false));
+    EXPECT_EQ(0, triFacade.EdgeVertex(12, true));
+    EXPECT_EQ(0, triFacade.EdgeVertex(12, false));
+}
+
+TEST(MeshFacadeTest, VertexCreaseData)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    polyCube.setVDataSupport(VDATA_CREASE);
+
+    EXPECT_EQ(polyCube.vertexFloat(VDATA_CREASE), polyFacade.VertexCreaseData());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    EXPECT_EQ(nullptr, triFacade.VertexCreaseData());
+}
+
+TEST(MeshFacadeTest, EdgeCreaseData)
+{
+    MNMesh             polyCube = TestUtils::CreateCube(false);
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    polyCube.setEDataSupport(EDATA_CREASE);
+
+    EXPECT_EQ(polyCube.edgeFloat(EDATA_CREASE), polyFacade.EdgeCreaseData());
+
+    Mesh triCube;
+    polyCube.OutToTri(triCube);
+    MaxUsd::MeshFacade triFacade { &triCube };
+
+    EXPECT_EQ(nullptr, triFacade.EdgeCreaseData());
+}
+
+TEST(MeshFacadeTest, Transform)
+{
+    MNMesh polyQuad = TestUtils::CreateQuad();
+    Mesh   triQuad;
+    polyQuad.OutToTri(triQuad);
+
+    // Expected before transform :
+    auto p1 = Point3 { -1.f, -1.f, 0.f };
+    auto p2 = Point3 { 1.f, -1.f, 0.f };
+    auto p3 = Point3 { 1.f, 1.f, 0.f };
+    auto p4 = Point3 { -1.f, 1.f, 0.f };
+
+    // Expected after transform :
+    auto p1t = Point3 { -1.f, -1.f, 10.f };
+    auto p2t = Point3 { 1.f, -1.f, 10.f };
+    auto p3t = Point3 { 1.f, 1.f, 10.f };
+    auto p4t = Point3 { -1.f, 1.f, 10.f };
+
+    Matrix3 transform;
+    transform.Translate(Point3 { 0, 0, 10 });
+
+    // MNMesh
+    MaxUsd::MeshFacade polyFacade { &polyQuad };
+
+    EXPECT_EQ(p1, polyFacade.Vertex(0));
+    EXPECT_EQ(p2, polyFacade.Vertex(1));
+    EXPECT_EQ(p3, polyFacade.Vertex(2));
+    EXPECT_EQ(p4, polyFacade.Vertex(3));
+
+    polyFacade.Transform(transform);
+
+    EXPECT_EQ(p1t, polyFacade.Vertex(0));
+    EXPECT_EQ(p2t, polyFacade.Vertex(1));
+    EXPECT_EQ(p3t, polyFacade.Vertex(2));
+    EXPECT_EQ(p4t, polyFacade.Vertex(3));
+
+    // Mesh
+
+    MaxUsd::MeshFacade triFacade { &triQuad };
+
+    EXPECT_EQ(p1, triFacade.Vertex(0));
+    EXPECT_EQ(p2, triFacade.Vertex(1));
+    EXPECT_EQ(p3, triFacade.Vertex(2));
+    EXPECT_EQ(p4, triFacade.Vertex(3));
+
+    triFacade.Transform(transform);
+
+    EXPECT_EQ(p1t, triFacade.Vertex(0));
+    EXPECT_EQ(p2t, triFacade.Vertex(1));
+    EXPECT_EQ(p3t, triFacade.Vertex(2));
+    EXPECT_EQ(p4t, triFacade.Vertex(3));
+}
+
+TEST(MeshFacadeTest, MakePlanar)
+{
+    MNMesh polyQuad = TestUtils::CreateQuad();
+    // Move one of the vertices to make the quad non-planar.
+    polyQuad.v[3].p = Point3 { polyQuad.v[3].p.x, polyQuad.v[3].p.y, polyQuad.v[3].p.z + 1.0f };
+
+    MaxUsd::MeshFacade polyFacade { &polyQuad };
+    EXPECT_EQ(1, polyFacade.FaceCount());
+    polyFacade.MakePlanar(1.0f);
+    EXPECT_EQ(2, polyFacade.FaceCount());
+
+    Mesh triQuad;
+    polyQuad.OutToTri(triQuad);
+    MaxUsd::MeshFacade triFacade { &triQuad };
+    EXPECT_EQ(2, triFacade.FaceCount());
+    triFacade.MakePlanar(0.1f); // no op, triangles are already planar.
+    EXPECT_EQ(2, triFacade.FaceCount());
+}
+
+TEST(MeshFacadeTest, MakeConvex)
+{
+    MNMesh polyQuad = TestUtils::CreateQuad();
+    // Move one of the vertices to make the quad concave.
+    polyQuad.v[2].p = Point3 { -0.75f, -0.75f, polyQuad.v[3].p.z };
+
+    MaxUsd::MeshFacade polyFacade { &polyQuad };
+    EXPECT_EQ(1, polyFacade.FaceCount());
+    polyFacade.MakeConvex();
+    EXPECT_EQ(2, polyFacade.FaceCount());
+
+    Mesh triQuad;
+    polyQuad.OutToTri(triQuad);
+    MaxUsd::MeshFacade triFacade { &triQuad };
+    EXPECT_EQ(2, triFacade.FaceCount());
+    triFacade.MakeConvex();
+    EXPECT_EQ(2, triFacade.FaceCount());
+}
+
+TEST(MeshFacadeTest, Triangulate)
+{
+    MNMesh             polyQuad = TestUtils::CreateQuad();
+    MaxUsd::MeshFacade polyFacade { &polyQuad };
+    EXPECT_EQ(1, polyFacade.FaceCount());
+    polyFacade.Triangulate();
+    EXPECT_EQ(2, polyFacade.FaceCount());
+
+    Mesh triQuad;
+    polyQuad.OutToTri(triQuad);
+    MaxUsd::MeshFacade triFacade { &triQuad };
+    EXPECT_EQ(2, polyFacade.FaceCount());
+    triFacade.Triangulate();
+    EXPECT_EQ(2, polyFacade.FaceCount());
+}
+
+TEST(MeshFacadeTest, Triangulate_withSpecNormals)
+{
+    MNMesh             cube = TestUtils::CreateCube(true /*specifyNormals*/);
+    MaxUsd::MeshFacade polyFacade { &cube };
+    EXPECT_EQ(6, polyFacade.FaceCount());
+
+    polyFacade.LoadNormals();
+    ASSERT_NE(nullptr, polyFacade.NormalIndices());
+    EXPECT_EQ(24, polyFacade.NormalIndices()->size());
+    polyFacade.Triangulate();
+
+    // Triangulate will convert to a triMesh, and clear cached data, normals will need to
+    // be reloaded.
+    auto normalIndices = polyFacade.NormalIndices();
+    EXPECT_EQ(nullptr, normalIndices);
+
+    // Make sure spec normals were properly remapped on the tris.
+    polyFacade.LoadNormals();
+    normalIndices = polyFacade.NormalIndices();
+    ASSERT_EQ(36, normalIndices->size());
+    pxr::VtIntArray expectedIndices = { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
+                                        3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5 };
+    for (int j = 0; j < expectedIndices.size(); ++j) {
+        EXPECT_EQ(expectedIndices[j], (*normalIndices)[j]);
+    }
+}
+
+TEST(MeshFacadeTest, Cleanup)
+{
+    MNMesh polyCube = TestUtils::CreateCube(false);
+    Mesh   triCube;
+    polyCube.OutToTri(triCube);
+
+    MaxUsd::MeshFacade polyFacade { &polyCube };
+    EXPECT_EQ(6, polyFacade.FaceCount());
+    // Flag a couple DEAD faces on the MNMesh which should be cleaned up.
+    polyCube.F(1)->SetFlag(MN_DEAD);
+    polyCube.F(3)->SetFlag(MN_DEAD);
+    polyCube.F(5)->SetFlag(MN_DEAD);
+    polyFacade.Cleanup();
+    EXPECT_EQ(3, polyFacade.FaceCount());
+
+    MaxUsd::MeshFacade triFacade { &triCube };
+    EXPECT_EQ(12, triFacade.FaceCount());
+    // Make some degenerate faces (2 equal indices), which should be cleaned up.
+    triCube.faces[0].v[0] = triCube.faces[0].v[1];
+    triCube.faces[6].v[1] = triCube.faces[6].v[2];
+    triFacade.Cleanup();
+    EXPECT_EQ(10, triFacade.FaceCount());
+    // Make some illegal faces (indices out of range), should also be cleaned up.
+    triCube.faces[1].v[0] = 999;
+    triCube.faces[7].v[1] = -1;
+    triFacade.Cleanup();
+    EXPECT_EQ(8, triFacade.FaceCount());
+}
+
+TEST(MeshFacadeTest, BoundingBox)
+{
+    MNMesh             polyQuad = TestUtils::CreateQuad();
+    MaxUsd::MeshFacade polyFacade { &polyQuad };
+
+    Box3 expectedBoundingBox { Point3 { -1.f, -1.f, 0.f }, Point3 { 1.f, 1.f, 0.0f } };
+
+    auto bbPoly = polyFacade.BoundingBox();
+    EXPECT_NEAR(expectedBoundingBox.Min().x, bbPoly.Min().x, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Min().y, bbPoly.Min().y, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Min().z, bbPoly.Min().z, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().x, bbPoly.Max().x, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().y, bbPoly.Max().y, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().z, bbPoly.Max().z, 0.0001f);
+
+    Mesh triQuad;
+    polyQuad.OutToTri(triQuad);
+    MaxUsd::MeshFacade triFacade { &triQuad };
+
+    auto bbTri = triFacade.BoundingBox();
+    EXPECT_NEAR(expectedBoundingBox.Min().x, bbTri.Min().x, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Min().y, bbTri.Min().y, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Min().z, bbTri.Min().z, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().x, bbTri.Max().x, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().y, bbTri.Max().y, 0.0001f);
+    EXPECT_NEAR(expectedBoundingBox.Max().z, bbTri.Max().z, 0.0001f);
+}
diff --git a/src/Tests/Unit/MaxUsd.MeshNormals.test.cpp b/src/Tests/Unit/MaxUsd.MeshNormals.test.cpp
new file mode 100644
index 0000000..f046ceb
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MeshNormals.test.cpp
@@ -0,0 +1,1136 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/MeshConversion/MaxMeshConversionOptions.h>
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/MeshConversion/PrimvarMappingOptions.h>
+
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+// Test that no normals are converted if using NormalsToConvert::None
+TEST(MeshNormalsTests, NormalsToConvert_None)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+    auto       cubeWithNormals = TestUtils::CreateCube(true);
+
+    MaxUsd::MeshConverter converter;
+
+    // Test conversion TO usd.
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    pxr::UsdGeomMesh                              usdMesh;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cubeWithNormals },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    const auto normalPrimvar = primVarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    EXPECT_EQ(normalPrimvar.IsDefined(), false);
+    EXPECT_EQ(usdMesh.GetNormalsAttr().HasValue(), false);
+}
+
+void UnspecifiedNormals_Test(bool withSmoothingGroups)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+    auto       cubeWithUnspecifiedNormals = TestUtils::CreateCube(false);
+
+    if (withSmoothingGroups) {
+        cubeWithUnspecifiedNormals.AutoSmooth(0.1f, FALSE, FALSE);
+    }
+    MaxUsd::MeshConverter converter;
+
+    // Test conversion TO usd.
+    MaxUsd::MaxMeshConversionOptions              options;
+    pxr::UsdGeomMesh                              usdMesh;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cubeWithUnspecifiedNormals },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+    const auto normalPrimvar = primVarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    EXPECT_TRUE(normalPrimvar.IsDefined());
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+    // Test reconversion FROM usd
+    MNMesh                     reconvertedMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reconvertedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    auto specifiedNormals = reconvertedMesh.GetSpecifiedNormals();
+    EXPECT_NE(specifiedNormals, nullptr);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/UnspecifiedNormals_SmGroups_");
+    exportPath.append(std::to_string(withSmoothingGroups));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test that no normals are converted if max normals are not specified and there
+// are no smoothing groups.
+TEST(MeshNormalsTests, UnspecifiedNormals_NoSmoothingGroups) { UnspecifiedNormals_Test(false); }
+
+// Test that normals are converted if smoothing groups are defined, even if the
+// normals are unspecified.
+TEST(MeshNormalsTests, UnspecifiedNormals_WithSmoothingGroups) { UnspecifiedNormals_Test(true); }
+
+void ConstantNormals_Test(bool asPrimvar)
+{
+    // Test conversion TO usd.
+    pxr::UsdGeomMesh usdMesh;
+    const auto       stage = pxr::UsdStage::CreateInMemory();
+    const auto       path = pxr::SdfPath("/object");
+    auto             quad = TestUtils::CreateQuad();
+
+    quad.SpecifyNormals();
+    auto normals = quad.GetSpecifiedNormals();
+
+    normals->SetNumFaces(1);
+    normals->SetNumNormals(1);
+    normals->Normal(0) = Point3(0, 0, 1);
+    normals->Face(0).SetDegree(4);
+    normals->Face(0).SpecifyAll();
+    for (int i = 0; i < normals->Face(0).GetDegree(); i++) {
+        normals->SetNormalIndex(0, i, 0);
+    }
+
+    normals->SetAllExplicit();
+    normals->CheckNormals();
+    quad.InvalidateGeomCache();
+
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(
+        asPrimvar ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar
+                  : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    pxr::VtVec3fArray usdNormals;
+
+    if (asPrimvar) {
+        pxr::UsdGeomMesh*       ptr = &usdMesh;
+        pxr::UsdGeomPrimvarsAPI primVarApi(usdMesh.GetPrim());
+        auto normalPrimvar = primVarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+
+        EXPECT_TRUE(normalPrimvar.IsDefined());
+        EXPECT_EQ(normalPrimvar.GetInterpolation(), pxr::UsdGeomTokens->constant);
+        normalPrimvar.Get(&usdNormals);
+    } else {
+        EXPECT_EQ(usdMesh.GetNormalsInterpolation(), pxr::UsdGeomTokens->constant);
+        usdMesh.GetNormalsAttr().Get(&usdNormals);
+    }
+    EXPECT_EQ(usdNormals.size(), 1);
+    EXPECT_EQ(usdNormals[0], pxr::GfVec3f(0.f, 0.f, 1.f));
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+    // Test reconversion FROM usd.
+    MNMesh                     reconvertedMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(
+        usdMesh, reconvertedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+    TestUtils::CompareMaxMeshNormals(quad, reconvertedMesh);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/Constant_AsPrimvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test that the constant normal interpolation scheme is used when possible
+// for normal attributes.
+TEST(MeshNormalsTests, Constant_AsAttribute) { ConstantNormals_Test(false); }
+
+// Test that the constant normal interpolation scheme is used when possible
+// for normal primvars.
+TEST(MeshNormalsTests, Constant_AsPrimvar) { ConstantNormals_Test(true); }
+
+void Facevarying_Cube_Indexed(bool asPrimvar)
+{
+    MNMesh     cube = TestUtils::CreateCube(true);
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(
+        asPrimvar ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar
+                  : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+    pxr::UsdGeomMesh                              usdMesh;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    std::vector<pxr::GfVec3f> expectedNormals(6);
+    expectedNormals[0] = pxr::GfVec3f(0, 0, -1);
+    expectedNormals[1] = pxr::GfVec3f(0, 0, 1);
+    expectedNormals[2] = pxr::GfVec3f(0, -1, 0);
+    expectedNormals[3] = pxr::GfVec3f(1, 0, 0);
+    expectedNormals[4] = pxr::GfVec3f(0, 1, 0);
+    expectedNormals[5] = pxr::GfVec3f(-1, 0, 0);
+
+    if (asPrimvar) {
+        auto normalsPrimvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                                  .GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+        EXPECT_EQ(normalsPrimvar.GetInterpolation(), pxr::UsdGeomTokens->faceVarying);
+
+        pxr::VtVec3fArray normals;
+        normalsPrimvar.Get(&normals);
+        EXPECT_EQ(normals.size(), 6);
+        EXPECT_EQ(normals[0], expectedNormals[0]);
+        EXPECT_EQ(normals[1], expectedNormals[1]);
+        EXPECT_EQ(normals[2], expectedNormals[2]);
+        EXPECT_EQ(normals[3], expectedNormals[3]);
+        EXPECT_EQ(normals[4], expectedNormals[4]);
+        EXPECT_EQ(normals[5], expectedNormals[5]);
+
+        pxr::VtIntArray indices;
+        normalsPrimvar.GetIndices(&indices);
+        int index = 0;
+        for (int i = 0; i < cube.FNum(); i++) {
+            for (int j = 0; j < cube.F(i)->deg; j++) {
+                EXPECT_EQ(indices[index++], i);
+            }
+        }
+    } else {
+        EXPECT_EQ(usdMesh.GetNormalsInterpolation(), pxr::UsdGeomTokens->faceVarying);
+        pxr::VtVec3fArray normals;
+        usdMesh.GetNormalsAttr().Get(&normals);
+
+        EXPECT_EQ(normals.size(), 24);
+        for (int i = 0; i < 6; i++) {
+            for (int j = 0; j < 4; j++) {
+                EXPECT_EQ(normals[i * 4 + j], expectedNormals[i]);
+            }
+        }
+    }
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+    // If as attribute, we lost information going to USD.
+    // No need to test the round trip, covered by the tests without indexing.
+    if (asPrimvar) {
+        // Test reconversion FROM usd
+        MNMesh                     reconvertedMesh;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            usdMesh, reconvertedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+        TestUtils::CompareMaxMeshNormals(cube, reconvertedMesh);
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/Facevarying_Cube_Indexed_Primvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test normal I/O with indexed max normals, converted as primvar normals.
+// The normal indexing is expected to be preserved.
+TEST(MeshNormalsTests, Facevarying_Cube_Indexed_AsPrimvar) { Facevarying_Cube_Indexed(true); }
+
+// Test normal I/O with indexed max normals, converted as normals attributes.
+// The normal indexing not expected to be preserved.
+TEST(MeshNormalsTests, Facevarying_Cube_Indexed_AsAttibute) { Facevarying_Cube_Indexed(false); }
+
+void FaceVarying_NotIndexed_Test(bool asPrimvar, bool ordered)
+{
+    MNMesh roof = TestUtils::CreateRoofShape();
+    roof.SpecifyNormals();
+    auto normals = roof.GetSpecifiedNormals();
+
+    // 2 quads angled to form a roof.
+    normals->SetNumFaces(2);
+    // Not indexed so there will be duplications on purpose - we have numNormals = 2 faces * 4
+    // vertices (quads).
+    normals->SetNumNormals(8);
+    auto nQuad1 = Normalize(Point3(-1, 0, 1));
+    auto nQuad2 = Normalize(Point3(1, 0, 1));
+
+    // Ordered means the normals indices come in ascending order.
+    // No need to indexing on the USD side.
+    if (ordered) {
+        normals->Normal(0) = nQuad1;
+        normals->Normal(1) = nQuad1;
+        normals->Normal(2) = nQuad1;
+        normals->Normal(3) = nQuad1;
+        normals->Normal(4) = nQuad2;
+        normals->Normal(5) = nQuad2;
+        normals->Normal(6) = nQuad2;
+        normals->Normal(7) = nQuad2;
+
+        normals->SetNormalIndex(0, 0, 0);
+        normals->SetNormalIndex(0, 1, 1);
+        normals->SetNormalIndex(0, 2, 2);
+        normals->SetNormalIndex(0, 3, 3);
+
+        normals->SetNormalIndex(1, 0, 4);
+        normals->SetNormalIndex(1, 1, 5);
+        normals->SetNormalIndex(1, 2, 6);
+        normals->SetNormalIndex(1, 3, 7);
+    }
+    // Unordered, still no need for indexing because we will just reorder the normals
+    // upon export.
+    else {
+        normals->Normal(0) = nQuad2;
+        normals->Normal(1) = nQuad2;
+        normals->Normal(2) = nQuad2;
+        normals->Normal(3) = nQuad2;
+        normals->Normal(4) = nQuad1;
+        normals->Normal(5) = nQuad1;
+        normals->Normal(6) = nQuad1;
+        normals->Normal(7) = nQuad1;
+
+        normals->SetNormalIndex(0, 0, 4);
+        normals->SetNormalIndex(0, 1, 5);
+        normals->SetNormalIndex(0, 2, 6);
+        normals->SetNormalIndex(0, 3, 7);
+
+        normals->SetNormalIndex(1, 0, 0);
+        normals->SetNormalIndex(1, 1, 1);
+        normals->SetNormalIndex(1, 2, 2);
+        normals->SetNormalIndex(1, 3, 3);
+    }
+
+    normals->SetAllExplicit();
+    normals->CheckNormals();
+    roof.InvalidateGeomCache();
+
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/FaceVarying_Unordered_NotIndexed_AsPrimvar");
+
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(
+        asPrimvar ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar
+                  : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+    pxr::UsdGeomMesh                              usdMesh;
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &roof },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::UsdAttribute normalsAttribute;
+    if (asPrimvar) {
+        auto normalPrimvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                                 .GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+        normalsAttribute = normalPrimvar.GetAttr();
+
+        // Expect face varying normal interpolation, because some the roof "top" vertices have
+        // multiple normals, for each adjacent face.
+        EXPECT_EQ(normalPrimvar.GetInterpolation(), pxr::UsdGeomTokens->faceVarying);
+
+        // No need for an index, as the normals there are 8 normals for 8 vertex indices. Although
+        // contrary to the ToUsdNormals_FaceVarying_Unordered_Indexed_AsPrimvar test, here some
+        // remapping has to happen so that the normals are in order.
+        EXPECT_EQ(normalPrimvar.IsIndexed(), false);
+    } else {
+        normalsAttribute = usdMesh.GetNormalsAttr();
+        EXPECT_EQ(usdMesh.GetNormalsInterpolation(), pxr::UsdGeomTokens->faceVarying);
+    }
+
+    // Finally make sure we got the right normals.
+    pxr::VtVec3fArray usdNormals;
+    normalsAttribute.Get(&usdNormals);
+    pxr::GfVec3f nQuad1Usd(nQuad1.x, nQuad1.y, nQuad1.z);
+    pxr::GfVec3f nQuad2Usd(nQuad2.x, nQuad2.y, nQuad2.z);
+
+    EXPECT_EQ(usdNormals[0], nQuad1Usd);
+    EXPECT_EQ(usdNormals[1], nQuad1Usd);
+    EXPECT_EQ(usdNormals[2], nQuad1Usd);
+    EXPECT_EQ(usdNormals[3], nQuad1Usd);
+
+    EXPECT_EQ(usdNormals[4], nQuad2Usd);
+    EXPECT_EQ(usdNormals[5], nQuad2Usd);
+    EXPECT_EQ(usdNormals[6], nQuad2Usd);
+    EXPECT_EQ(usdNormals[7], nQuad2Usd);
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+    // If not ordered, we don't get the exact same mesh back, as we did not use an index
+    // and ordered the normals.
+    if (ordered) {
+        MNMesh                     reconverted;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            usdMesh, reconverted, MaxUsd::PrimvarMappingOptions {}, channelNames);
+        TestUtils::CompareMaxMeshNormals(roof, reconverted);
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/FaceVarying_NotIndexed_Ordered_");
+    exportPath.append(std::to_string(ordered));
+    exportPath.append("_Primvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test normal I/O with max normals where normals do not require indexing
+// and converted as primvars. Make sure that the ordering does not matter.
+TEST(MeshNormalsTests, FaceVarying_Ordered_NotIndexed_AsPrimvar)
+{
+    FaceVarying_NotIndexed_Test(true, true);
+}
+
+TEST(MeshNormalsTests, FaceVarying_Unordered_NotIndexed_AsPrimvar)
+{
+    FaceVarying_NotIndexed_Test(true, false);
+}
+
+// Test normal I/O with max normals where normals do not require indexing
+// and converted as attributes. Make sure that the ordering does not matter.
+TEST(MeshNormalsTests, FaceVarying_Ordered_NotIndexed_AsAttribute)
+{
+    FaceVarying_NotIndexed_Test(false, true);
+}
+
+TEST(MeshNormalsTests, FaceVarying_Unordered_NotIndexed_AsAttribute)
+{
+    FaceVarying_NotIndexed_Test(false, false);
+}
+
+void VertexNormals_Test(bool asPrimvar, bool indexed)
+{
+    const auto       stage = pxr::UsdStage::CreateInMemory();
+    const auto       path = pxr::SdfPath("/object");
+    pxr::UsdGeomMesh usdMesh;
+    MNMesh           roof = TestUtils::CreateRoofShape();
+
+    roof.SpecifyNormals();
+    auto normals = roof.GetSpecifiedNormals();
+
+    // 2 quads angled to form a roof.
+    normals->SetNumFaces(2);
+    normals->SetNumNormals(8);
+    auto leftSideNormal = Normalize(Point3(-1, 0, 1));
+    auto topNormal = Normalize(Point3(0, 0, 1));
+    auto rightSideNormal = Normalize(Point3(1, 0, 1));
+
+    if (indexed) {
+        normals->Normal(0) = leftSideNormal;
+        normals->Normal(1) = topNormal;
+        normals->Normal(2) = rightSideNormal;
+
+        normals->SetNormalIndex(0, 0, 0);
+        normals->SetNormalIndex(0, 1, 1);
+        normals->SetNormalIndex(0, 2, 1);
+        normals->SetNormalIndex(0, 3, 0);
+        normals->SetNormalIndex(1, 0, 1);
+        normals->SetNormalIndex(1, 1, 2);
+        normals->SetNormalIndex(1, 2, 2);
+        normals->SetNormalIndex(1, 3, 1);
+    } else {
+        normals->Normal(0) = leftSideNormal;
+        normals->Normal(1) = topNormal;
+        normals->Normal(2) = topNormal;
+        normals->Normal(3) = leftSideNormal;
+        normals->Normal(4) = rightSideNormal;
+        normals->Normal(5) = rightSideNormal;
+
+        normals->SetNormalIndex(0, 0, 0);
+        normals->SetNormalIndex(0, 1, 1);
+        normals->SetNormalIndex(0, 2, 2);
+        normals->SetNormalIndex(0, 3, 3);
+        normals->SetNormalIndex(1, 0, 1);
+        normals->SetNormalIndex(1, 1, 4);
+        normals->SetNormalIndex(1, 2, 5);
+        normals->SetNormalIndex(1, 3, 2);
+    }
+
+    normals->SetAllExplicit();
+    normals->CheckNormals();
+    roof.InvalidateGeomCache();
+
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+
+    options.SetNormalsMode(
+        asPrimvar ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar
+                  : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &roof },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::VtVec3fArray   usdNormals;
+    pxr::UsdGeomPrimvar normalPrimvar;
+    if (asPrimvar) {
+        normalPrimvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                            .GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+
+        EXPECT_EQ(normalPrimvar.GetInterpolation(), pxr::UsdGeomTokens->vertex);
+        EXPECT_EQ(normalPrimvar.IsIndexed(), indexed);
+        normalPrimvar.Get(&usdNormals);
+    } else {
+        EXPECT_EQ(usdMesh.GetNormalsInterpolation(), pxr::UsdGeomTokens->vertex);
+        usdMesh.GetNormalsAttr().Get(&usdNormals);
+    }
+
+    const auto leftSideNormalUsd
+        = pxr::GfVec3f(leftSideNormal.x, leftSideNormal.y, leftSideNormal.z);
+    const auto topNormalUsd = pxr::GfVec3f(topNormal.x, topNormal.y, topNormal.z);
+    ;
+    const auto rightSideNormalUsd
+        = pxr::GfVec3f(rightSideNormal.x, rightSideNormal.y, rightSideNormal.z);
+
+    if (indexed && asPrimvar) {
+        EXPECT_EQ(usdNormals[0], leftSideNormalUsd);
+        EXPECT_EQ(usdNormals[1], topNormalUsd);
+        EXPECT_EQ(usdNormals[2], rightSideNormalUsd);
+        pxr::VtIntArray normalIndices;
+        normalPrimvar.GetIndices(&normalIndices);
+        EXPECT_EQ(normalIndices.size(), 6);
+    } else {
+        // Finally, make sure we got the right normals.
+        EXPECT_EQ(usdNormals.size(), 6);
+
+        EXPECT_EQ(usdNormals[0], leftSideNormalUsd);
+        EXPECT_EQ(usdNormals[1], topNormalUsd);
+        EXPECT_EQ(usdNormals[2], topNormalUsd);
+        EXPECT_EQ(usdNormals[3], leftSideNormalUsd);
+        EXPECT_EQ(usdNormals[4], rightSideNormalUsd);
+        EXPECT_EQ(usdNormals[5], rightSideNormalUsd);
+    }
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+    // If as attribute and indexed, we expanded the normals to avoid needing an index.
+    // No need to test the round trip, covered by the tests without indexing.
+    if (asPrimvar || !indexed) {
+        // Test conversion back to MAX.
+        MNMesh                     reconvertedMesh;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            usdMesh, reconvertedMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+        TestUtils::CompareMaxMeshNormals(roof, reconvertedMesh);
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/Vertex_Indexed_");
+    exportPath.append(std::to_string(indexed));
+    exportPath.append("_Primvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test normal I/O where normals should be indexed and converted as primvars
+// with vertex interpolation.
+TEST(MeshNormalsTests, Vertex_Indexed_AsPrimvar) { VertexNormals_Test(true, true); }
+
+// Test normal I/O where normals should converted as attributes
+// with vertex interpolation.
+TEST(MeshNormalsTests, Vertex_Indexed_AsAttribute) { VertexNormals_Test(false, true); }
+
+// Test normal I/O where normals should converted as primvar
+// with vertex interpolation and no indexing.
+TEST(MeshNormalsTests, Vertex_NotIndexed_AsPrimvar) { VertexNormals_Test(true, false); }
+
+// Test normal I/O where normals should converted as attributes
+// with vertex interpolation.
+TEST(MeshNormalsTests, Vertex_NotIndexed_AsAttribute) { VertexNormals_Test(false, false); }
+
+void UniformNormals_ToMax_Test(bool asPrimvar)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/Uniform_Attribute_ToMax");
+
+    // Build a USD cube with uniform normals.
+    pxr::UsdGeomMesh                 usdMesh;
+    MNMesh                           cube = TestUtils::CreateCube(true);
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+    // We will produce the normals ourselves, as uniform.
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &cube },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    pxr::VtVec3fArray usdNormals;
+    usdNormals.reserve(6);
+    std::vector<Point3> normals;
+    normals.push_back(Point3(0, 0, -1));
+    normals.push_back(Point3(0, 0, 1));
+    normals.push_back(Point3(0, -1, 0));
+    normals.push_back(Point3(1, 0, 0));
+    normals.push_back(Point3(0, 1, 0));
+    normals.push_back(Point3(-1, 0, 0));
+
+    for (const auto& n : normals) {
+        usdNormals.push_back(pxr::GfVec3f(n.x, n.y, n.z));
+    }
+    pxr::UsdAttribute normalAttr;
+
+    if (asPrimvar) {
+        auto primVarApi = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim());
+        auto primvar = primVarApi.CreatePrimvar(
+            pxr::UsdImagingTokens->primvarsNormals, pxr::SdfValueTypeNames->Float3Array);
+        normalAttr = primvar.GetAttr();
+        primvar.SetInterpolation(pxr::UsdGeomTokens->uniform);
+    } else {
+        usdMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->uniform);
+        normalAttr = usdMesh.CreateNormalsAttr();
+    }
+    normalAttr.Set(usdNormals);
+
+    usdMesh.CreateSubdivisionSchemeAttr(pxr::VtValue(pxr::UsdGeomTokens->none));
+
+    // Now we can test the import :
+    MNMesh                     maxMesh;
+    std::map<int, std::string> channelNames;
+    converter.ConvertToMNMesh(usdMesh, maxMesh, MaxUsd::PrimvarMappingOptions {}, channelNames);
+
+    const auto specNormals = maxMesh.GetSpecifiedNormals();
+    auto       numNormals = specNormals->GetNumNormals();
+    EXPECT_EQ(numNormals, 6);
+    for (int i = 0; i < numNormals; i++) {
+        EXPECT_EQ(specNormals->Normal(i), normals[i]);
+    }
+    for (int i = 0; i < specNormals->GetNumFaces(); i++) {
+        for (int j = 0; j < specNormals->Face(i).GetDegree(); j++) {
+            EXPECT_EQ(specNormals->Face(i).GetNormalID(j), i);
+        }
+    }
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/UniformNormal_ToMax_Primvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test import of uniform interpolation normals, when defined as primvars.
+TEST(MeshNormalsTests, Uniform_ToMax_AsPrimvar) { UniformNormals_ToMax_Test(true); }
+
+// Test import of uniform interpolation normals, when defined as attributes.
+TEST(MeshNormalsTests, Uniform_ToMax_AsAttribute) { UniformNormals_ToMax_Test(false); }
+
+void VertexNormalsUnusedVertices_Test(bool asPrimvar)
+{
+    const auto       stage = pxr::UsdStage::CreateInMemory();
+    const auto       path = pxr::SdfPath("/object");
+    pxr::UsdGeomMesh usdMesh;
+    MNMesh           roof;
+    roof.setNumFaces(2);
+    roof.setNumVerts(7);
+    roof.V(0)->p = Point3(-1.f, -1.f, 0.f);
+    roof.V(1)->p = Point3(0.f, -1.f, 1.f);
+    roof.V(2)->p = Point3(0.f, 1.f, 1.f);
+
+    // Unused
+    roof.V(3)->p = Point3(0.f, 0.f, 0.f);
+
+    roof.V(4)->p = Point3(-1.f, 1.f, 0.f);
+    roof.V(5)->p = Point3(1.f, -1.f, 0.f);
+    roof.V(6)->p = Point3(1.f, 1.f, 0.f);
+    roof.F(0)->SetDeg(4);
+    roof.F(0)->vtx[0] = 0;
+    roof.F(0)->vtx[1] = 1;
+    roof.F(0)->vtx[2] = 2;
+    roof.F(0)->vtx[3] = 4;
+    roof.F(1)->SetDeg(4);
+    roof.F(1)->vtx[0] = 1;
+    roof.F(1)->vtx[1] = 5;
+    roof.F(1)->vtx[2] = 6;
+    roof.F(1)->vtx[3] = 2;
+    roof.FillInMesh();
+
+    roof.SpecifyNormals();
+    auto normals = roof.GetSpecifiedNormals();
+
+    // 2 quads angled to form a roof.
+    normals->SetNumFaces(2);
+    normals->SetNumNormals(8);
+    auto leftSideNormal = Normalize(Point3(-1, 0, 1));
+    auto topNormal = Normalize(Point3(0, 0, 1));
+    auto rightSideNormal = Normalize(Point3(1, 0, 1));
+
+    normals->Normal(0) = leftSideNormal;
+    normals->Normal(1) = topNormal;
+    normals->Normal(2) = topNormal;
+    normals->Normal(3) = leftSideNormal;
+    normals->Normal(4) = rightSideNormal;
+    normals->Normal(5) = rightSideNormal;
+
+    normals->SetNormalIndex(0, 0, 0);
+    normals->SetNormalIndex(0, 1, 1);
+    normals->SetNormalIndex(0, 2, 2);
+    normals->SetNormalIndex(0, 3, 3);
+    normals->SetNormalIndex(1, 0, 1);
+    normals->SetNormalIndex(1, 1, 4);
+    normals->SetNormalIndex(1, 2, 5);
+    normals->SetNormalIndex(1, 3, 2);
+
+    normals->SetAllExplicit();
+    normals->CheckNormals();
+    roof.InvalidateGeomCache();
+
+    MaxUsd::MeshConverter            converter;
+    MaxUsd::MaxMeshConversionOptions options;
+
+    options.SetNormalsMode(
+        asPrimvar ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar
+                  : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &roof },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    pxr::VtVec3fArray   usdNormals;
+    pxr::UsdGeomPrimvar normalPrimvar;
+    if (asPrimvar) {
+        normalPrimvar = pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+                            .GetPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+
+        EXPECT_EQ(normalPrimvar.GetInterpolation(), pxr::UsdGeomTokens->vertex);
+        normalPrimvar.Get(&usdNormals);
+    } else {
+        EXPECT_EQ(usdMesh.GetNormalsInterpolation(), pxr::UsdGeomTokens->vertex);
+        usdMesh.GetNormalsAttr().Get(&usdNormals);
+    }
+
+    const auto leftSideNormalUsd
+        = pxr::GfVec3f(leftSideNormal.x, leftSideNormal.y, leftSideNormal.z);
+    const auto topNormalUsd = pxr::GfVec3f(topNormal.x, topNormal.y, topNormal.z);
+    ;
+    const auto rightSideNormalUsd
+        = pxr::GfVec3f(rightSideNormal.x, rightSideNormal.y, rightSideNormal.z);
+
+    // Finally, make sure we got the right normals.
+    ASSERT_EQ(usdNormals.size(), 6);
+
+    EXPECT_EQ(usdNormals[0], leftSideNormalUsd);
+    EXPECT_EQ(usdNormals[1], topNormalUsd);
+    EXPECT_EQ(usdNormals[2], topNormalUsd);
+    EXPECT_EQ(usdNormals[3], leftSideNormalUsd);
+    EXPECT_EQ(usdNormals[4], rightSideNormalUsd);
+    EXPECT_EQ(usdNormals[5], rightSideNormalUsd);
+
+    pxr::TfToken subdivScheme;
+    usdMesh.GetSubdivisionSchemeAttr().Get(&subdivScheme);
+    EXPECT_EQ(subdivScheme, pxr::UsdGeomTokens->none);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/Normals/VertexNormals_Unused_Vertices");
+    exportPath.append("_Primvar_");
+    exportPath.append(std::to_string(asPrimvar));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+// Test import and export of vertex normals as primvar with unused vertices.
+TEST(MeshNormalsTests, Vertex_UnusedVertices_AsPrimvar) { VertexNormalsUnusedVertices_Test(true); }
+
+// Test import and export of vertex normals as attribute with unused vertices.
+TEST(MeshNormalsTests, Vertex_UnusedVertices_AsAttribute)
+{
+    VertexNormalsUnusedVertices_Test(false);
+}
+
+// Test time sampled normals specified as attribute (animated Primvars are already tested in the
+// ChannelBuilder tests).
+TEST(MeshNormalsTests, TimeSampledNormals_AsAttribute)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/timeSampledNormalsAttribute");
+    auto       animatedMesh = pxr::UsdGeomMesh(stage->DefinePrim(path, pxr::TfToken("Mesh")));
+
+    // Create a simple mesh.
+    const pxr::VtVec3fArray points = { { 0.f, 0.f, 0.f }, { 0.f, 1.f, 0.f }, { 0.f, 0.f, 1.f } };
+    const pxr::VtIntArray   faceCounts = { 3 };
+    const pxr::VtIntArray   indices = { 0, 1, 2 };
+    animatedMesh.CreatePointsAttr().Set(points);
+    animatedMesh.CreateFaceVertexCountsAttr().Set(faceCounts);
+    animatedMesh.CreateFaceVertexIndicesAttr().Set(indices);
+
+    // Normal attribute interpolation is not animatable.
+    animatedMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->vertex);
+    const auto normalAttribute = animatedMesh.CreateNormalsAttr();
+
+    // Specify different vertex normals at different timeCodes.
+    const pxr::VtVec3fArray normalsDefault
+        = { { 1.f, 1.f, 1.f }, { 2.f, 2.f, 2.f }, { 3.f, 3.f, 4.f } };
+    normalAttribute.Set(normalsDefault);
+    const pxr::VtVec3fArray normals1 = { { 4.f, 4.f, 4.f }, { 5.f, 5.f, 5.f }, { 6.f, 6.f, 6.f } };
+    normalAttribute.Set(normals1, 1);
+    const pxr::VtVec3fArray normals2 = { { 7.f, 7.f, 7.f }, { 8.f, 8.f, 8.f }, { 9.f, 9.f, 9.f } };
+    normalAttribute.Set(normals2, 2);
+
+    // Test the normal conversion process at different timeCodes to make sure that the specified
+    // timeCode is respected.
+    auto testAtTimeCode = [&](const pxr::VtVec3fArray& normals, const pxr::UsdTimeCode& timeCode) {
+        MNMesh                     maxMesh;
+        MaxUsd::MeshConverter      converter;
+        std::map<int, std::string> channelNames;
+        converter.ConvertToMNMesh(
+            animatedMesh,
+            maxMesh,
+            MaxUsd::PrimvarMappingOptions {},
+            channelNames,
+            nullptr,
+            timeCode);
+        const auto maxNormals = maxMesh.GetSpecifiedNormals();
+        for (int i = 0; i < maxNormals->GetNumNormals(); ++i) {
+            EXPECT_FLOAT_EQ(normals[i][0], maxNormals->Normal(i).x);
+            EXPECT_FLOAT_EQ(normals[i][1], maxNormals->Normal(i).y);
+            EXPECT_FLOAT_EQ(normals[i][2], maxNormals->Normal(i).z);
+        }
+    };
+    testAtTimeCode(normalsDefault, pxr::UsdTimeCode::Default());
+    testAtTimeCode(normals1, 1);
+    testAtTimeCode(normals2, 2);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/animatedNormalsAttribute.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MeshNormalsTests, LeftHandedFaceOrientation)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/object");
+
+    // Export a simple quad to a USD mesh.
+    auto                             maxQuad = TestUtils::CreateQuad();
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMesh;
+    MaxUsd::MaxMeshConversionOptions options;
+    options.SetNormalsMode(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    std::map<MtlID, pxr::VtIntArray>              materialIdToFacesMap;
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &maxQuad },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    usdMesh.CreateOrientationAttr().Set(pxr::UsdGeomTokens->leftHanded);
+
+    // 1) Test that normal faces built from vertex-interpolated normals are correctly flipped.
+
+    usdMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->vertex);
+    usdMesh.GetNormalsAttr().Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2),
+                                                     pxr::GfVec3f(3, 4, 5),
+                                                     pxr::GfVec3f(6, 7, 8),
+                                                     pxr::GfVec3f(9, 10, 11) });
+
+    MNMesh                     importedQuadVertex;
+    std::map<int, std::string> channelNames1;
+    converter.ConvertToMNMesh(
+        usdMesh, importedQuadVertex, MaxUsd::PrimvarMappingOptions {}, channelNames1);
+    auto& quadFaceFromVertex = importedQuadVertex.GetSpecifiedNormals()->Face(0);
+
+    // Expect te reverse order after import, always starting at 0.
+    EXPECT_EQ(0, quadFaceFromVertex.GetNormalID(0));
+    EXPECT_EQ(3, quadFaceFromVertex.GetNormalID(1));
+    EXPECT_EQ(2, quadFaceFromVertex.GetNormalID(2));
+    EXPECT_EQ(1, quadFaceFromVertex.GetNormalID(3));
+
+    // 2) Test that normal faces built from faceVarying interpolated normals are correctly flipped.
+
+    usdMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->faceVarying);
+    usdMesh.GetNormalsAttr().Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2),
+                                                     pxr::GfVec3f(3, 4, 5),
+                                                     pxr::GfVec3f(6, 7, 8),
+                                                     pxr::GfVec3f(9, 10, 11) });
+
+    MNMesh                     importedQuadFaceVaring;
+    std::map<int, std::string> channelNames2;
+    converter.ConvertToMNMesh(
+        usdMesh, importedQuadFaceVaring, MaxUsd::PrimvarMappingOptions {}, channelNames2);
+    auto& quadFaceFromFaceVarying = importedQuadFaceVaring.GetSpecifiedNormals()->Face(0);
+
+    // Expect the reverse order after import, always starting at 0.
+    EXPECT_EQ(0, quadFaceFromFaceVarying.GetNormalID(0));
+    EXPECT_EQ(3, quadFaceFromFaceVarying.GetNormalID(1));
+    EXPECT_EQ(2, quadFaceFromFaceVarying.GetNormalID(2));
+    EXPECT_EQ(1, quadFaceFromFaceVarying.GetNormalID(3));
+
+    // 3) Test that normal faces built from uniform interpolated primvars are not affected (all the
+    // points on a face share the same data, nothing to flip).
+
+    usdMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->uniform);
+    usdMesh.GetNormalsAttr().Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2) });
+
+    MNMesh                     importedQuadUniform;
+    std::map<int, std::string> channelNames3;
+    converter.ConvertToMNMesh(
+        usdMesh, importedQuadUniform, MaxUsd::PrimvarMappingOptions {}, channelNames3);
+    auto& quadFaceFromUniform = importedQuadUniform.GetSpecifiedNormals()->Face(0);
+
+    EXPECT_EQ(0, quadFaceFromUniform.GetNormalID(0));
+    EXPECT_EQ(0, quadFaceFromUniform.GetNormalID(1));
+    EXPECT_EQ(0, quadFaceFromUniform.GetNormalID(2));
+    EXPECT_EQ(0, quadFaceFromUniform.GetNormalID(3));
+
+    // 4) Test that map faces built from constant interpolated primvars are not affected (all the
+    // points on a mesh share the same data, nothing to flip).
+
+    usdMesh.SetNormalsInterpolation(pxr::UsdGeomTokens->constant);
+    usdMesh.GetNormalsAttr().Set(pxr::VtVec3fArray { pxr::GfVec3f(0, 1, 2) });
+
+    MNMesh                     importedQuadConstant;
+    std::map<int, std::string> channelNames4;
+    converter.ConvertToMNMesh(
+        usdMesh, importedQuadConstant, MaxUsd::PrimvarMappingOptions {}, channelNames4);
+    auto& quadFaceFromConstant = importedQuadConstant.GetSpecifiedNormals()->Face(0);
+
+    // Expect te reverse order after import, always starting at 0.
+    EXPECT_EQ(0, quadFaceFromConstant.GetNormalID(0));
+    EXPECT_EQ(0, quadFaceFromConstant.GetNormalID(1));
+    EXPECT_EQ(0, quadFaceFromConstant.GetNormalID(2));
+    EXPECT_EQ(0, quadFaceFromConstant.GetNormalID(3));
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/LeftHandedOrientationNormals.usda");
+    stage->Export(exportPath);
+#endif
+}
+
+void ConvertNormalsToUsdTimeCode(bool asAttribute)
+{
+    const auto stage = pxr::UsdStage::CreateInMemory();
+    const auto path = pxr::SdfPath("/OutputTimeSampledNormals");
+
+    // Sets normals on a quad mesh. The seed is used to generate different normals values.
+    auto setNormals = [](MNMesh& quad, float seed) {
+        // Setup explicit normals
+        quad.SpecifyNormals();
+        auto specifiedNormals = quad.GetSpecifiedNormals();
+
+        specifiedNormals->SetParent(&quad);
+        specifiedNormals->SetNumFaces(1);
+        specifiedNormals->SetNumNormals(4);
+
+        specifiedNormals->Normal(0) = Point3(seed, 0.f, 0.f);
+        specifiedNormals->Normal(1) = Point3(seed, seed, 0.f);
+        specifiedNormals->Normal(2) = Point3(seed, seed, seed);
+        specifiedNormals->Normal(3) = Point3(0.f, seed, seed);
+
+        specifiedNormals->Face(0).SetDegree(4);
+        specifiedNormals->Face(0).SpecifyAll();
+        for (int i = 0; i < 4; i++) {
+            specifiedNormals->SetNormalIndex(0, i, i);
+        }
+        specifiedNormals->SetAllExplicit();
+        specifiedNormals->CheckNormals();
+        quad.InvalidateGeomCache();
+    };
+
+    // Build a few quads with different vertex normals.
+    MNMesh quad1 = TestUtils::CreateQuad();
+    setNormals(quad1, 1.0f);
+    MNMesh quad2 = TestUtils::CreateQuad();
+    setNormals(quad2, 2.0f);
+    MNMesh quad3 = TestUtils::CreateQuad();
+    setNormals(quad3, 3.0f);
+
+    // Export the quads to different USD timecodes.
+    MaxUsd::MeshConverter            converter;
+    pxr::UsdGeomMesh                 usdMesh;
+    MaxUsd::MaxMeshConversionOptions options;
+    std::map<MtlID, pxr::VtIntArray> materialIdToFacesMap;
+    options.SetNormalsMode(
+        asAttribute ? MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute
+                    : MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar);
+    MaxUsd::MeshConverter::ObjectChannelIntervals intervals;
+    // Default
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad1 },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode::Default(),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    // TimeCode 1
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad2 },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode(1),
+        materialIdToFacesMap,
+        false,
+        intervals);
+    // TimeCode 2
+    converter.ConvertToUSDMesh(
+        MaxUsd::MeshFacade { &quad3 },
+        stage,
+        path,
+        options,
+        usdMesh,
+        pxr::UsdTimeCode(2),
+        materialIdToFacesMap,
+        false,
+        intervals);
+
+    // Now validate that the normals were correctly exported at each timecode.
+    pxr::UsdAttribute normalsAttribute = asAttribute
+        ? usdMesh.GetNormalsAttr()
+        : pxr::UsdGeomPrimvarsAPI(usdMesh.GetPrim())
+              .GetPrimvar(pxr::UsdImagingTokens->primvarsNormals)
+              .GetAttr();
+
+    pxr::VtVec3fArray normals1;
+    normalsAttribute.Get(&normals1, pxr::UsdTimeCode::Default());
+    const pxr::VtVec3fArray expectedNormals1
+        = { { 1.f, 0.f, 0.f }, { 1.f, 1.f, 0.f }, { 1.f, 1.f, 1.f }, { 0.f, 1.f, 1.f } };
+    EXPECT_EQ(expectedNormals1, normals1);
+
+    pxr::VtVec3fArray normals2;
+    normalsAttribute.Get(&normals2, pxr::UsdTimeCode(1));
+    const pxr::VtVec3fArray expectedNormals2
+        = { { 2.f, 0.f, 0.f }, { 2.f, 2.f, 0.f }, { 2.f, 2.f, 2.f }, { 0.f, 2.f, 2.f } };
+    EXPECT_EQ(expectedNormals2, normals2);
+
+    pxr::VtVec3fArray normals3;
+    normalsAttribute.Get(&normals3, pxr::UsdTimeCode(2));
+    const pxr::VtVec3fArray expectedNormals3
+        = { { 3.f, 0.f, 0.f }, { 3.f, 3.f, 0.f }, { 3.f, 3.f, 3.f }, { 0.f, 3.f, 3.f } };
+    EXPECT_EQ(expectedNormals3, normals3);
+
+#ifdef TEST_OUTPUT_USD_FILES
+    std::string exportPath = TestUtils::GetOutputDirectory();
+    exportPath.append("/MeshConversionTest/Output_TimeSampledNormals_as_attr_");
+    exportPath.append(std::to_string(asAttribute));
+    exportPath.append(".usda");
+    stage->Export(exportPath);
+#endif
+}
+
+TEST(MeshNormalsTests, ConvertNormalsAsAttributeToUsdTimeCode_AsAttribute)
+{
+    ConvertNormalsToUsdTimeCode(true);
+}
+
+TEST(MeshNormalsTests, ConvertNormalsAsAttributeToUsdTimeCode_AsPrimvar)
+{
+    ConvertNormalsToUsdTimeCode(false);
+}
diff --git a/src/Tests/Unit/MaxUsd.MeshUtils.test.cpp b/src/Tests/Unit/MaxUsd.MeshUtils.test.cpp
new file mode 100644
index 0000000..50adede
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.MeshUtils.test.cpp
@@ -0,0 +1,177 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/Utilities/MeshUtils.h>
+
+#include <gtest/gtest.h>
+#include <mesh.h>
+#include <mnmesh.h>
+
+using namespace MaxUsd;
+
+TEST(MeshUtilsTest, SetupEdgeVisibilityFromTriNormals)
+{
+    // Create a quad, as a trimesh.
+    auto quad = TestUtils::CreateQuad();
+    Mesh quadTriMesh;
+    quad.OutToTri(quadTriMesh);
+
+    auto getEdgeVis = [](const Mesh& mesh, std::vector<bool>& edgeVis) {
+        edgeVis.clear();
+        const auto numFaces = mesh.getNumFaces();
+        for (int i = 0; i < numFaces; i++) {
+            Face& face = mesh.faces[i];
+            edgeVis.push_back(face.getEdgeVis(0) > 0);
+            edgeVis.push_back(face.getEdgeVis(1) > 0);
+            edgeVis.push_back(face.getEdgeVis(2) > 0);
+        }
+    };
+
+    auto setEdgeDisplay = [](Mesh& mesh, int visibility) {
+        for (int i = 0; i < mesh.getNumFaces(); i++) {
+            Face& face = mesh.faces[i];
+            face.setEdgeVis(0, visibility);
+            face.setEdgeVis(1, visibility);
+            face.setEdgeVis(2, visibility);
+        }
+    };
+
+    // Make sure that edges between coplanar triangles do not get shown
+    // For the quad we created, this means no change to edge visibility.
+    std::vector<bool> edgeVisibility;
+    getEdgeVis(quadTriMesh, edgeVisibility);
+    EXPECT_EQ(4, std::count(edgeVisibility.begin(), edgeVisibility.end(), true));
+    MeshUtils::SetupEdgeVisibility(quadTriMesh, true);
+    std::vector<bool> edgeVisAfterCall;
+    getEdgeVis(quadTriMesh, edgeVisAfterCall);
+    EXPECT_TRUE(std::equal(edgeVisibility.begin(), edgeVisibility.end(), edgeVisAfterCall.begin()));
+
+    // Now we move one of the vertices... causing the two triangles to no longer be coplanar...
+    quadTriMesh.getVert(0).z += 1.0f;
+    MeshUtils::SetupEdgeVisibility(quadTriMesh, true);
+    // All edges should now be visible.
+    getEdgeVis(quadTriMesh, edgeVisibility);
+    EXPECT_TRUE(std::all_of(
+        edgeVisibility.begin(), edgeVisibility.end(), [](bool visibility) { return visibility; }));
+
+    // Reset the quad trimesh and assign different materials to the two triangles.
+    quad.OutToTri(quadTriMesh);
+    quadTriMesh.faces[0].setMatID(0);
+    quadTriMesh.faces[1].setMatID(1);
+    MeshUtils::SetupEdgeVisibility(quadTriMesh, true);
+    getEdgeVis(quadTriMesh, edgeVisibility);
+    EXPECT_TRUE(std::all_of(
+        edgeVisibility.begin(), edgeVisibility.end(), [](bool visibility) { return visibility; }));
+
+    // Make sure that edges already visible are not hidden between coplanar faces.
+    quad.OutToTri(quadTriMesh);
+    setEdgeDisplay(quadTriMesh, EDGE_VIS);
+    MeshUtils::SetupEdgeVisibility(quadTriMesh, true);
+    getEdgeVis(quadTriMesh, edgeVisibility);
+    EXPECT_TRUE(std::all_of(
+        edgeVisibility.begin(), edgeVisibility.end(), [](bool visibility) { return visibility; }));
+
+    // Make sure the degenerate triangles are not considered/modified.
+    quad.OutToTri(quadTriMesh);
+    auto verts = quadTriMesh.faces[1].getAllVerts();
+    quadTriMesh.faces[1].setVerts(verts[0], verts[1], verts[1]); // Face[1] is degenerated.
+    setEdgeDisplay(quadTriMesh, EDGE_INVIS);
+    MeshUtils::SetupEdgeVisibility(quadTriMesh, true);
+    getEdgeVis(quadTriMesh, edgeVisibility);
+    EXPECT_TRUE(
+        std::all_of(edgeVisibility.begin(), edgeVisibility.begin() + 3, [](bool visibility) {
+            return visibility;
+        }));
+    EXPECT_FALSE(std::all_of(edgeVisibility.begin() + 3, edgeVisibility.end(), [](bool visibility) {
+        return visibility;
+    }));
+
+    // Test non-manifold mesh cases...
+    auto createNonManifoldMesh = []() -> Mesh {
+        Mesh nonManifoldMesh;
+        nonManifoldMesh.setNumFaces(3);
+        nonManifoldMesh.setNumVerts(5);
+        nonManifoldMesh.verts[0] = Point3(-1.f, -1.f, 0.f);
+        nonManifoldMesh.verts[1] = Point3(1.f, -1.f, 0.f);
+        nonManifoldMesh.verts[2] = Point3(1.f, 1.f, 0.f);
+        nonManifoldMesh.verts[3] = Point3(-1.f, 1.f, 0.f);
+        nonManifoldMesh.verts[4] = Point3(0.f, 0.f, 1.f);
+        nonManifoldMesh.faces[0].setVerts(0, 1, 2); // coplanar
+        nonManifoldMesh.faces[1].setVerts(0, 2, 3); // coplanar
+        nonManifoldMesh.faces[2].setVerts(0, 4, 2); // perpendicular
+        return nonManifoldMesh;
+    };
+
+    // 3 triangles, two of them coplanar - and the last one perpendicular. All 3 sharing an edge.
+    Mesh nonManifoldMesh = createNonManifoldMesh();
+    // Set all edges to invisible, to see if they will be set correctly.
+    setEdgeDisplay(nonManifoldMesh, EDGE_INVIS);
+    MeshUtils::SetupEdgeVisibility(nonManifoldMesh, true);
+    // Now only 2 edges should be hidden, the edges between the two coplanar triangles.
+    getEdgeVis(nonManifoldMesh, edgeVisibility);
+    EXPECT_EQ(7, std::count(edgeVisibility.begin(), edgeVisibility.end(), true));
+    EXPECT_FALSE(edgeVisibility[2]);
+    EXPECT_FALSE(edgeVisibility[3]);
+
+    // Make sure that the perpendicular triangle being of a different material doesn't
+    // change the result.
+    setEdgeDisplay(nonManifoldMesh, EDGE_INVIS);
+    nonManifoldMesh.faces[0].setMatID(0);
+    nonManifoldMesh.faces[1].setMatID(0);
+    nonManifoldMesh.faces[2].setMatID(1);
+    MeshUtils::SetupEdgeVisibility(nonManifoldMesh, true);
+    getEdgeVis(nonManifoldMesh, edgeVisibility);
+    EXPECT_EQ(7, std::count(edgeVisibility.begin(), edgeVisibility.end(), true));
+    EXPECT_FALSE(edgeVisibility[2]);
+    EXPECT_FALSE(edgeVisibility[3]);
+
+    // Make sure material boundaries still work in case there is continuity on the intersection
+    // edge, but between triangles that are not coplanar.
+    setEdgeDisplay(nonManifoldMesh, EDGE_INVIS);
+    nonManifoldMesh.faces[0].setMatID(1);
+    nonManifoldMesh.faces[1].setMatID(0);
+    nonManifoldMesh.faces[2].setMatID(1);
+    MeshUtils::SetupEdgeVisibility(nonManifoldMesh, true);
+    getEdgeVis(nonManifoldMesh, edgeVisibility);
+    EXPECT_TRUE(std::all_of(
+        edgeVisibility.begin(), edgeVisibility.end(), [](bool visibility) { return visibility; }));
+}
+
+TEST(MeshUtilsTest, SetupEdgeVisibilityShowAll)
+{
+    // Create a quad, as a trimesh.
+    auto quad = TestUtils::CreateCube(false);
+    Mesh cubeTriMesh;
+    quad.OutToTri(cubeTriMesh);
+
+    auto getEdgeVis = [](const Mesh& mesh, std::vector<bool>& edgeVis) {
+        edgeVis.clear();
+        const auto numFaces = mesh.getNumFaces();
+        for (int i = 0; i < numFaces; i++) {
+            Face& face = mesh.faces[i];
+            edgeVis.push_back(face.getEdgeVis(0) > 0);
+            edgeVis.push_back(face.getEdgeVis(1) > 0);
+            edgeVis.push_back(face.getEdgeVis(2) > 0);
+        }
+    };
+
+    std::vector<bool> edgeVisibility;
+    MeshUtils::SetupEdgeVisibility(cubeTriMesh, false);
+    getEdgeVis(cubeTriMesh, edgeVisibility);
+    EXPECT_TRUE(std::all_of(
+        edgeVisibility.begin(), edgeVisibility.end(), [](bool visibility) { return visibility; }));
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.ShaderWriterRegistry.test.cpp b/src/Tests/Unit/MaxUsd.ShaderWriterRegistry.test.cpp
new file mode 100644
index 0000000..5b45c2d
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.ShaderWriterRegistry.test.cpp
@@ -0,0 +1,115 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "Mocks/MockStdMat.h"
+
+#include <MaxUsd/Translators/LastResortUSDPreviewSurfaceWriter.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+#include <MaxUsd/Translators/ShaderWriterRegistry.h>
+
+#include <pxr/usd/usdShade/shader.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <gtest/gtest.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+// ShaderWriter placeholder for testing purposes
+// empty ShaderWriter exposing only the methods needed to make the system work
+class ShaderWriterTest : public MaxUsdShaderWriter
+{
+public:
+    ShaderWriterTest(Mtl* material, const SdfPath& usdPath, MaxUsdWriteJobContext& jobCtx)
+        : MaxUsdShaderWriter(material, usdPath, jobCtx) { };
+
+    static ContextSupport CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs)
+    {
+        // the placeholder will only export materials to UsdPreviewSurface
+        if (exportArgs.GetConvertMaterialsTo() == UsdImagingTokens->UsdPreviewSurface) {
+            return ContextSupport::Supported;
+        }
+        return ContextSupport::Unsupported;
+    }
+};
+
+PXR_MAXUSD_REGISTER_SHADER_WRITER(PHYSICALMATERIAL_CLASS_ID, ShaderWriterTest)
+
+TEST(ShaderWriteRegistryTest, FindRegisteredShaderWriter)
+{
+    // default UsdSceneBuilderOptions converts to UsdPreviewSurface
+    MaxUsd::USDSceneBuilderOptions exportArgs;
+    exportArgs.SetConvertMaterialsTo(UsdImagingTokens->UsdPreviewSurface);
+    MaxUsdShaderWriterRegistry::WriterFactoryFn writerFn
+        = MaxUsdShaderWriterRegistry::Find(PHYSICALMATERIAL_CLASS_ID, exportArgs);
+    EXPECT_NE(writerFn, nullptr);
+}
+
+TEST(ShaderWriteRegistryTest, InvalidContextOnRegisteredShaderWriter)
+{
+    MaxUsd::USDSceneBuilderOptions exportArgs;
+    exportArgs.SetAllMaterialConversions({ TfToken("Arnold") });
+    exportArgs.SetConvertMaterialsTo(TfToken("Arnold"));
+
+    MaxUsdShaderWriterRegistry::WriterFactoryFn writerFn
+        = MaxUsdShaderWriterRegistry::Find(PHYSICALMATERIAL_CLASS_ID, exportArgs);
+    EXPECT_EQ(writerFn, nullptr);
+}
+
+TEST(ShaderWriteRegistryTest, NoRegisteredShaderWriterDummyFallback)
+{
+    MaxUsd::USDSceneBuilderOptions exportArgs;
+    exportArgs.SetConvertMaterialsTo(UsdImagingTokens->UsdPreviewSurface);
+    MaxUsdShaderWriterRegistry::WriterFactoryFn writerFn = MaxUsdShaderWriterRegistry::Find(
+        Class_ID(0xd00f1e00L, 0xbe77e500L) /* PBR Material (Metal / Rough) */, exportArgs);
+
+    auto                  dummyName = std::string {};
+    MockStdMat            mtl;
+    MaxUsdWriteJobContext ctx { pxr::UsdStage::CreateInMemory(), dummyName, exportArgs, false };
+    auto                  writer = writerFn(&mtl, pxr::SdfPath { "/mtl" }, ctx);
+    auto dummyWriter = dynamic_cast<LastResortUSDPreviewSurfaceWriter*>(writer.get());
+
+    EXPECT_NE(nullptr, dummyWriter);
+
+    exportArgs.SetUseLastResortUSDPreviewSurfaceWriter(false);
+    MaxUsdShaderWriterRegistry::WriterFactoryFn writerFnNoFallback
+        = MaxUsdShaderWriterRegistry::Find(
+            Class_ID(0xd00f1e00L, 0xbe77e500L) /* PBR Material (Metal / Rough) */, exportArgs);
+    EXPECT_EQ(nullptr, writerFnNoFallback);
+}
+
+TEST(ShaderWriteRegistryTest, NoWriterDummyFallbackWhenNoTarget)
+{
+    MaxUsd::USDSceneBuilderOptions              exportArgs;
+    MaxUsdShaderWriterRegistry::WriterFactoryFn writerFn = MaxUsdShaderWriterRegistry::Find(
+        Class_ID(0xd00f1e00L, 0xbe77e500L) /* PBR Material (Metal / Rough) */, exportArgs);
+
+    EXPECT_EQ(nullptr, writerFn);
+}
+
+TEST(ShaderWriterRegistryTest, TargetAgnosticMaterial)
+{
+    auto mats = MaxUsdShaderWriterRegistry::GetAllTargetAgnosticMaterials();
+#if MAX_VERSION_MAJOR < 26
+    auto expectedMats = std::vector<Class_ID> {};
+    EXPECT_EQ(mats, expectedMats);
+#else
+    // TODO - to reenable the test, the PXR_PLUGINPATH_NAME env var must be defined
+    // with the path location for the default component translators (MaxUsd_Translator json)
+    GTEST_SKIP();
+    // Material Switcher is target agnostic, Class_ID(0x4ecd74a6, 0x0)
+    auto expectedMats = std::vector<Class_ID> { Class_ID(0x4ecd74a6, 0x0) };
+    EXPECT_EQ(mats, expectedMats);
+#endif
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.TranslationUtils.test.cpp b/src/Tests/Unit/MaxUsd.TranslationUtils.test.cpp
new file mode 100644
index 0000000..2bef892
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.TranslationUtils.test.cpp
@@ -0,0 +1,355 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usd/inherits.h>
+#include <pxr/usd/usd/modelAPI.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+
+#include <gtest/gtest.h>
+#include <mesh.h>
+#include <mnmesh.h>
+
+using namespace MaxUsd;
+
+TEST(TranslationUtilsTest, ValidateMappedData)
+{
+    const auto cube = TestUtils::CreateCube(false);
+
+    pxr::VtIntArray indices;
+
+    EXPECT_FALSE(
+        ValidateMappedDataForMesh(2, indices, cube, pxr::TfToken("bad_interpolation"), false));
+
+    // Constant interpolation.
+    EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->constant, false));
+    EXPECT_TRUE(ValidateMappedDataForMesh(
+        2,
+        indices,
+        cube,
+        pxr::UsdGeomTokens->constant,
+        false)); // To many values, but still useable.
+    EXPECT_FALSE(ValidateMappedDataForMesh(0, indices, cube, pxr::UsdGeomTokens->constant, false));
+
+    auto vertexDataTest = [&indices, &cube](pxr::TfToken interpolation) {
+        EXPECT_TRUE(ValidateMappedDataForMesh(8, indices, cube, interpolation, false));
+        EXPECT_TRUE(
+            ValidateMappedDataForMesh(9, indices, cube, interpolation, false)); // still workable.
+        EXPECT_FALSE(
+            ValidateMappedDataForMesh(7, indices, cube, interpolation, false)); // Not enough data.
+
+        indices = { 0, 0, 0, 0, 0, 0, 0, 0 }; // 8 indices, what is expected.
+        EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, interpolation, true));
+        indices = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }; // 9 indices, too much, but still useable.
+        EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, interpolation, true));
+        indices = { 0, 0, 0, 0, 0, 0, 0 }; // 7 indices, unusable.
+        EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, interpolation, true));
+        indices = { 0, 0, 0, 0, 0, 0, 0, 2 }; // Out of range index.
+        EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, interpolation, true));
+        indices = { 0, 0, 0, 0, 0, 0, 0, -1 }; // Out of range index.
+        EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, interpolation, true));
+    };
+
+    // Vertex
+    vertexDataTest(pxr::UsdGeomTokens->vertex);
+    // Varying
+    vertexDataTest(pxr::UsdGeomTokens->varying);
+
+    // Uniform
+    EXPECT_TRUE(ValidateMappedDataForMesh(6, indices, cube, pxr::UsdGeomTokens->uniform, false));
+    EXPECT_TRUE(ValidateMappedDataForMesh(
+        7, indices, cube, pxr::UsdGeomTokens->uniform, false)); // still workable.
+    EXPECT_FALSE(ValidateMappedDataForMesh(
+        5, indices, cube, pxr::UsdGeomTokens->uniform, false)); // Not enough data.
+    indices = { 0, 0, 0, 0, 0, 0 };                             // 6 indices, what is expected.
+    EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->uniform, true));
+    indices = { 0, 0, 0, 0, 0, 0, 0 }; // 7 indices, too much, but still usable.
+    EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->uniform, true));
+    indices = { 0, 0, 0, 0, 0 }; // 5 indices, unusable.
+    EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->uniform, true));
+    indices = { 2, 0, 0, 0, 0, 0 }; // Out of range index.
+    EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->uniform, true));
+    indices = { -1, 0, 0, 0, 0, 0 }; // Out of range index.
+    EXPECT_FALSE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->uniform, true));
+
+    // FaceVarying
+    EXPECT_TRUE(
+        ValidateMappedDataForMesh(24, indices, cube, pxr::UsdGeomTokens->faceVarying, false));
+    EXPECT_TRUE(ValidateMappedDataForMesh(
+        25, indices, cube, pxr::UsdGeomTokens->faceVarying, false)); // still workable.
+    EXPECT_FALSE(ValidateMappedDataForMesh(
+        23, indices, cube, pxr::UsdGeomTokens->faceVarying, false)); // Not enough data.
+
+    indices = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }; // 24 indices, what is expected.
+    EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->faceVarying, true));
+    indices = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }; // 25 indices, too much, but still usable.
+    EXPECT_TRUE(ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->faceVarying, true));
+    indices = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }; // < 24 indices, unusable.
+    EXPECT_FALSE(
+        ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->faceVarying, true));
+    indices = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }; // Out of range index.
+    EXPECT_FALSE(
+        ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->faceVarying, true));
+    indices = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    }; // Out of range index.
+    EXPECT_FALSE(
+        ValidateMappedDataForMesh(1, indices, cube, pxr::UsdGeomTokens->faceVarying, true));
+}
+
+TEST(TranslationUtilsTest, UniqueNameGenerator)
+{
+    UniqueNameGenerator nameGenerator;
+    EXPECT_EQ(nameGenerator.GetName("test"), "test");
+    EXPECT_EQ(nameGenerator.GetName("test"), "test1");
+    EXPECT_EQ(nameGenerator.GetName("test1"), "test2");
+    EXPECT_EQ(nameGenerator.GetName("test"), "test3");
+
+    EXPECT_EQ(nameGenerator.GetName("test9"), "test9");
+    EXPECT_EQ(nameGenerator.GetName("test9"), "test10");
+
+    EXPECT_EQ(nameGenerator.GetName("test01"), "test01");
+    EXPECT_EQ(nameGenerator.GetName("test01"), "test02");
+
+    EXPECT_EQ(nameGenerator.GetName("test09"), "test09");
+    EXPECT_EQ(nameGenerator.GetName("test09"), "test11"); // test10 already exist
+
+    EXPECT_EQ(nameGenerator.GetName("%&#000999"), "%&#000999");
+    EXPECT_EQ(nameGenerator.GetName("%&#000999"), "%&#001000");
+
+    EXPECT_EQ(nameGenerator.GetName("9999"), "9999");
+    EXPECT_EQ(nameGenerator.GetName("9999"), "10000");
+
+    EXPECT_EQ(nameGenerator.GetName(""), "");
+    EXPECT_EQ(nameGenerator.GetName(""), "1");
+
+    EXPECT_EQ(nameGenerator.GetName("18446744073709551615"), "18446744073709551615");
+    EXPECT_EQ(nameGenerator.GetName("18446744073709551615"), "0");
+}
+
+TEST(TranslationUtilsTest, HasUnicodeTest)
+{
+    std::string utf8Str
+        = u8"איך הקליטה Ξεσκεπάζω τὴν ψυχοφθόρα βδελυγμία Zwölf Boxkämpfer Sævör grét áðan því "
+          u8"úlpan var ónýt いろはにほへ イロハニホヘト พูดจาให้จ๊ะๆ จ๋าๆ น่าฟังเอย";
+    const char* utf8EncodedStr = "\xff"
+                                 "f";
+    std::string asciiStr = "h0h0h0_*+1-~.str";
+    EXPECT_TRUE(MaxUsd::HasUnicodeCharacter(utf8Str)) << "failed to detect unicode utf8 characters";
+    EXPECT_TRUE(MaxUsd::HasUnicodeCharacter(std::string(utf8EncodedStr)))
+        << "failed to detect unicode encoded characters";
+    EXPECT_FALSE(MaxUsd::HasUnicodeCharacter(asciiStr))
+        << "detected unicode character in ascii only string";
+}
+
+TEST(TranslationUtilsTest, GetOffsetTimeCodeTest)
+{
+    auto ticksPerSecond = 160;
+    auto maxFPS = 30.0;
+
+    auto usdStartTimeCode = 101.0;
+    auto usdEndTimeCode = 129.0;
+    auto usdFPS = 24.0;
+
+    auto stage = pxr::UsdStage::CreateInMemory();
+    stage->SetStartTimeCode(usdStartTimeCode);
+    stage->SetEndTimeCode(usdEndTimeCode);
+    stage->SetFramesPerSecond(usdFPS);
+
+    TimeValue startAnimationTimeValue = ticksPerSecond * 0;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, 0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from 0.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    TimeValue endAnimationTimeValue = static_cast<TimeValue>(
+        startAnimationTimeValue + ticksPerSecond * (28.0 * (maxFPS / usdFPS)));
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, 0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from 0.0 the offset time code should be " + std::to_string(usdEndTimeCode);
+
+    startAnimationTimeValue = ticksPerSecond * -10;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, -10.0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from -10.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    endAnimationTimeValue
+        = startAnimationTimeValue + static_cast<int>(ticksPerSecond * (28.0 * (maxFPS / usdFPS)));
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, -10.0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from -10.0 the offset time code should be "
+            + std::to_string(usdEndTimeCode);
+
+    startAnimationTimeValue = ticksPerSecond * 0;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, 0, 14.0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from 0.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    endAnimationTimeValue = startAnimationTimeValue + ticksPerSecond * 14;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, 0, 14.0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from 0.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdEndTimeCode);
+
+    startAnimationTimeValue = ticksPerSecond * 10;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, 10.0, 14.0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from 10.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    endAnimationTimeValue = startAnimationTimeValue + ticksPerSecond * 14;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, 10.0, 14.0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from 10.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdEndTimeCode);
+
+    startAnimationTimeValue = ticksPerSecond * -10;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, -10.0, 14.0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from -10.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    endAnimationTimeValue = startAnimationTimeValue + ticksPerSecond * 14;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, -10.0, 14.0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from -10.0 and length 14.0 the offset time code should be "
+            + std::to_string(usdEndTimeCode);
+
+    startAnimationTimeValue = ticksPerSecond * 10;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, startAnimationTimeValue, 10.0, -14.0).GetValue()),
+        static_cast<float>(usdStartTimeCode))
+        << "At time" + std::to_string(startAnimationTimeValue)
+            + "for start from 10.0 and length -14.0 the offset time code should be "
+            + std::to_string(usdStartTimeCode);
+    endAnimationTimeValue = startAnimationTimeValue + ticksPerSecond * -14;
+    EXPECT_FLOAT_EQ(
+        static_cast<float>(
+            MaxUsd::GetOffsetTimeCode(stage, endAnimationTimeValue, 10.0, -14.0).GetValue()),
+        static_cast<float>(usdEndTimeCode))
+        << "At time " + std::to_string(endAnimationTimeValue)
+            + " for end from 10.0 and length -14.0 the offset time code should be "
+            + std::to_string(usdEndTimeCode);
+}
+
+TEST(TranslationUtilsTest, GetPrimOrAncestorWithKind)
+{
+    const auto assembly = pxr::TfToken("assembly");
+    const auto subcomponent = pxr::TfToken("subcomponent");
+    const auto component = pxr::TfToken("component");
+
+    // Setup a simple stage with a hierarchy and some kinds.
+    auto stage = pxr::UsdStage::CreateInMemory();
+    auto foo = stage->DefinePrim(pxr::SdfPath("/foo"), pxr::TfToken("Xform"));
+    pxr::UsdModelAPI(foo).SetKind(assembly);
+    auto bar = stage->DefinePrim(pxr::SdfPath("/foo/bar"), pxr::TfToken("Xform"));
+    pxr::UsdModelAPI(bar).SetKind(subcomponent);
+    auto baz = stage->DefinePrim(pxr::SdfPath("/foo/bar/baz"), pxr::TfToken("Xform"));
+    // No kind on baz
+    auto qux = stage->DefinePrim(pxr::SdfPath("/foo/bar/baz/qux"), pxr::TfToken("Xform"));
+    pxr::UsdModelAPI(qux).SetKind(component);
+
+    // Tests going up the hierarchy.
+    ASSERT_EQ(foo, MaxUsd::GetPrimOrAncestorWithKind(foo, assembly));
+    ASSERT_FALSE(MaxUsd::GetPrimOrAncestorWithKind(foo, subcomponent).IsValid());
+
+    ASSERT_EQ(bar, MaxUsd::GetPrimOrAncestorWithKind(bar, subcomponent));
+    ASSERT_EQ(foo, MaxUsd::GetPrimOrAncestorWithKind(bar, assembly));
+    ASSERT_FALSE(MaxUsd::GetPrimOrAncestorWithKind(bar, component).IsValid());
+
+    ASSERT_EQ(bar, MaxUsd::GetPrimOrAncestorWithKind(baz, subcomponent));
+    ASSERT_EQ(foo, MaxUsd::GetPrimOrAncestorWithKind(baz, assembly));
+    ASSERT_FALSE(MaxUsd::GetPrimOrAncestorWithKind(baz, component).IsValid());
+
+    ASSERT_EQ(foo, MaxUsd::GetPrimOrAncestorWithKind(qux, assembly));
+    ASSERT_EQ(bar, MaxUsd::GetPrimOrAncestorWithKind(qux, subcomponent));
+    ASSERT_EQ(qux, MaxUsd::GetPrimOrAncestorWithKind(qux, component));
+
+    // Test kind inherit
+    ASSERT_EQ(qux, MaxUsd::GetPrimOrAncestorWithKind(qux, pxr::TfToken("model")));
+    // baz has no kind, bar is a subcomponent, which isnt a model, foo is an assembly, which is a
+    // model.
+    ASSERT_EQ(foo, MaxUsd::GetPrimOrAncestorWithKind(baz, pxr::TfToken("model")));
+}
+
+TEST(TranslationUtilsTest, GetFirstNonInstanceProxyPrimAncestor)
+{
+    const auto assembly = pxr::TfToken("assembly");
+
+    // Setup a simple stage with a hierarchy and some kinds.
+    auto stage = pxr::UsdStage::CreateInMemory();
+    auto foo = stage->DefinePrim(pxr::SdfPath("/foo"));
+    pxr::UsdModelAPI(foo).SetKind(assembly);
+    auto fooCube = stage->DefinePrim(pxr::SdfPath("/foo/cube"), pxr::TfToken("Mesh"));
+    auto cubeBox = stage->DefinePrim(pxr::SdfPath("/foo/cube/box"), pxr::TfToken("Mesh"));
+    auto fooCubeInstance
+        = stage->DefinePrim(pxr::SdfPath("/foo/fooCubeInstance"), pxr::TfToken("Xform"));
+    fooCubeInstance.GetPrim().GetInherits().AddInherit(fooCube.GetPath());
+    fooCubeInstance.SetInstanceable(true);
+
+    auto fooCubeInstanceBox = stage->GetPrimAtPath(pxr::SdfPath("/foo/fooCubeInstance/box"));
+
+    // foo's first non instance proxy prim ancestor is itself.
+    ASSERT_EQ(foo, MaxUsd::GetFirstNonInstanceProxyPrimAncestor(foo));
+
+    // fooCubeInstanceBox's first non instance proxy prim ancestor is fooCubeInstance.
+    ASSERT_EQ(fooCubeInstance, MaxUsd::GetFirstNonInstanceProxyPrimAncestor(fooCubeInstanceBox));
+
+    // fooCubeInstance's first non instance proxy prim ancestor is itsef.
+    ASSERT_EQ(fooCubeInstance, MaxUsd::GetFirstNonInstanceProxyPrimAncestor(fooCubeInstance));
+
+    // Combine with GetPrimOrAncestorWithKind should lead to foo.
+    ASSERT_EQ(
+        foo,
+        MaxUsd::GetPrimOrAncestorWithKind(
+            MaxUsd::GetFirstNonInstanceProxyPrimAncestor(fooCubeInstanceBox), assembly));
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.VtDictionaryUtils.test.cpp b/src/Tests/Unit/MaxUsd.VtDictionaryUtils.test.cpp
new file mode 100644
index 0000000..941c424
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.VtDictionaryUtils.test.cpp
@@ -0,0 +1,72 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MaxUsd/Utilities/VtDictionaryUtils.h"
+
+#include <gtest/gtest.h>
+
+using namespace MaxUsd;
+
+namespace {
+const std::string doubleStr = "double";
+const std::string stringStr = "string";
+const std::string TfTokenStr = "TfToken";
+const std::string SdfPathStr = "SdfPath";
+const std::string vectorSdfPathStr = "vectorSdfPath";
+const std::string setStringStr = "setString";
+
+} // namespace
+
+TEST(VtDictionaryUtilsTest, TestCoerceDictToGuideType)
+{
+    // Create a guide dictionary with some values
+    pxr::VtDictionary guideDict;
+    guideDict[doubleStr] = 1.0;
+    guideDict[stringStr] = std::string(stringStr);
+    guideDict[TfTokenStr] = pxr::TfToken(TfTokenStr);
+    guideDict[SdfPathStr] = pxr::SdfPath(SdfPathStr);
+    guideDict[vectorSdfPathStr] = std::vector<pxr::SdfPath> { pxr::SdfPath(vectorSdfPathStr) };
+    guideDict[setStringStr] = std::set<std::string> { setStringStr };
+
+    // Create the dictionary to be coerced
+    pxr::VtDictionary coercedDict;
+    // Int assigned to test the coercing of int to double
+    coercedDict[doubleStr] = 2;
+    // Leave this one out, and make sure later that it's not added to the dict.
+    // coercedDict[stringStr] = stringStr;
+    // Test string -> TfToken
+    coercedDict[TfTokenStr] = TfTokenStr;
+    // Test string -> SdfPath
+    coercedDict[SdfPathStr] = SdfPathStr;
+    // Test vector<string> -> vector<SdfPath>
+    coercedDict[vectorSdfPathStr] = std::vector<std::string> { vectorSdfPathStr };
+    // Test vector<string> -> set<string>
+    coercedDict[setStringStr] = std::vector<std::string> { setStringStr };
+
+    DictUtils::CoerceDictToGuideType(coercedDict, guideDict);
+
+    EXPECT_FALSE(pxr::VtDictionaryIsHolding<std::string>(coercedDict, stringStr));
+    EXPECT_DOUBLE_EQ(coercedDict[doubleStr].Get<double>(), 2.0);
+    EXPECT_EQ(
+        coercedDict[TfTokenStr].Get<pxr::TfToken>(), guideDict[TfTokenStr].Get<pxr::TfToken>());
+    EXPECT_EQ(
+        coercedDict[SdfPathStr].Get<pxr::SdfPath>(), guideDict[SdfPathStr].Get<pxr::SdfPath>());
+    EXPECT_EQ(
+        coercedDict[vectorSdfPathStr].Get<std::vector<pxr::SdfPath>>(),
+        guideDict[vectorSdfPathStr].Get<std::vector<pxr::SdfPath>>());
+    EXPECT_EQ(
+        coercedDict[setStringStr].Get<std::set<std::string>>(),
+        guideDict[setStringStr].Get<std::set<std::string>>());
+}
\ No newline at end of file
diff --git a/src/Tests/Unit/MaxUsd.test.cpp b/src/Tests/Unit/MaxUsd.test.cpp
new file mode 100644
index 0000000..47c65d1
--- /dev/null
+++ b/src/Tests/Unit/MaxUsd.test.cpp
@@ -0,0 +1,73 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <gtest/gtest.h>
+#include <max.h>
+
+class MaxUsdTest : public ::testing::Test
+{
+public:
+    void SetUp() override { }
+    void TearDown() override { }
+};
+
+// Test sanitization of USD file extensions.
+TEST(MaxUsdTest, SanitizingUSDFilenamesPutsExtensionsToLowercase)
+{
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.USD"), L"file.usd");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.USDA"), L"file.usda");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.USDC"), L"file.usdc");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.USDZ"), L"file.usdz");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.usD"), L"file.usd");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file.UsDa"), L"file.usda");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file", L".usda"), L"file.usda");
+    EXPECT_EQ(USDCore::sanitizedFilename(L"file"), L"file");
+}
+
+TEST(MaxUsdTest, TestMockMaxInterfaces)
+{
+    auto* core_interface = GetCOREInterface();
+    EXPECT_TRUE(core_interface != nullptr);
+}
+
+TEST(MaxUsdTest, IsValidAbsolutePath)
+{
+    EXPECT_TRUE(MaxUsd::IsValidAbsolutePath(L"C:/foo/bar/baz.txt"));
+    EXPECT_TRUE(MaxUsd::IsValidAbsolutePath(L"Z:/foo.log"));
+    EXPECT_TRUE(MaxUsd::IsValidAbsolutePath(L"//foo/baz.log"));
+    // Input over 260 chars but this will resolve to an acceptable size.
+    EXPECT_TRUE(MaxUsd::IsValidAbsolutePath(
+        L"C:/./././././././././././././././././././././././././././././././././././././././././././"
+        L"././././././././././././././././././././././././././././././././././././././././././././"
+        L"././././././././././././././././././././././././././././././././././././././././././"
+        L"not.txt"));
+    // Path too long.
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(
+        L"C:/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/"
+        L"foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/foo/bar/"
+        L"baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/foo/bar/baz/"
+        L"foo/bar.txt"));
+    // Not a file.
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(L"C:/foo"));
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(L"C:/foo/"));
+    // Illegal characters
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(L"C:/<>.txt"));
+    // Not an absolute path.
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(L"not.txt"));
+    EXPECT_FALSE(MaxUsd::IsValidAbsolutePath(L"./not.txt"));
+}
diff --git a/src/Tests/Unit/Mocks/DllDirInternal.h b/src/Tests/Unit/Mocks/DllDirInternal.h
new file mode 100644
index 0000000..8a411a6
--- /dev/null
+++ b/src/Tests/Unit/Mocks/DllDirInternal.h
@@ -0,0 +1,72 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <plugin.h>
+
+// Extends class DllDir. The sole instance of DllDirInternal is owned by class App.
+class DllDirInternal : public DllDir
+{
+public:
+    // Instantiated as a member of class App
+    CoreExport DllDirInternal();
+    CoreExport ~DllDirInternal();
+
+    /** Unloads every plug-in DLL 3ds Max has loaded; for internal use only
+            Note that plug-ins should not be calling this method as unloading plug-in dlls
+            is only supported after the scene has been destroyed. */
+    CoreExport void UnloadAllDlls();
+
+    /** Unloads the DlLDesc at the specified index */
+    void UnloadADll(int dllIndex);
+
+    // The following methods are used only in core
+    /** Registers a DllDesc with the DllDir.
+    \param loadedDllDesc - The DllDesc to register. It's supposed to be loaded.
+    \return The index into DllDir where the DllDesc got registered. */
+    int RegisterLoadedDllDesc(const DllDesc* loadedDllDesc);
+
+    /** Replaces a deferred DllDesc with its loaded counterpart.
+    \param loadedDllDesc - The DllDesc used to resolve the deferred one. It's supposed to be loaded.
+    \param deferredDllIndex - The DllDir index of the DllDesc to be resolved
+    \return true if the DllDesc was resolved, false otherwise. */
+    bool ResolveDeferredDllDesc(const DllDesc* loadedDllDesc, int deferredDllIndex);
+
+    /** Registers a DllDesc that represents a plug-in Dll proxy.
+    \param filePath The full path of the plug-in Dll
+    \param description The description string of the plug-in Dll
+    \param lastWriteTime The time and date of last modification of the plug-in Dll
+    \return The DllDir index where the DllDesc was registered. */
+    int RegisterDeferredDllDesc(
+        const MaxSDK::Util::Path& filePath,
+        const MCHAR*              description,
+        const FILETIME&           lastWriteTime);
+
+    /** Finds a DllDesc based on the plug-in DLL's file name and description string.
+    A plug-in DLL is considered to be identified uniquely by its file name and description.
+    For example, if a plug-in dll has two copies 	in two different folders, they
+    are considered the same from the plug-in DLL registry's 	point of view and only
+    one of them is loaded. If the description of the two plug-in dlls differs, then
+    both will be loaded, but only the classes from one of them will get registered
+    if they both expose classes that have the same class ids.
+    \param fileName - the file name of the plug-in whose DllDesc to find
+    \param description - the description of the plug-in whose DllDesc to find
+    \return -1 if no DllDesc is found, otherwise the index in the DllDir of the found DllDesc.	 */
+    int FindDllDesc(const MCHAR* fileName, const MCHAR* description) const;
+
+    /** Singleton access */
+    static DllDirInternal& GetInstance();
+};
diff --git a/src/Tests/Unit/Mocks/MockBitmapIO.h b/src/Tests/Unit/Mocks/MockBitmapIO.h
new file mode 100644
index 0000000..acb3a00
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockBitmapIO.h
@@ -0,0 +1,72 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <bitmap.h>
+
+class MockBitmapIO_BTTTest : public BitmapIO
+{
+
+public:
+    /**
+     * The following methods are implemented in order to be able to use
+     * MockBitmapIO_BTTTest in the tests.
+     * NOTE: This is mostly copied from BitmapIO_PNG and was left almost
+     * as is (voluntarily) in order to be close to reality.
+     */
+    int          ExtCount() { return 1; }
+    const TCHAR* Ext(int /*n*/) { return _T("png"); }
+    BOOL         LoadConfigure(void* ptr, DWORD piDataSize)
+    {
+        memcpy_s(&btt_cfg, sizeof(BTTTest_cfg), ptr, piDataSize);
+        btt_cfg.MockSaved = TRUE;
+        return TRUE;
+    }
+    BOOL SaveConfigure(void* ptr)
+    {
+        if (ptr) {
+            btt_cfg.MockSaved = TRUE;
+            memcpy_s(ptr, sizeof(BTTTest_cfg), &btt_cfg, sizeof(BTTTest_cfg));
+            return TRUE;
+        } else
+            return FALSE;
+    }
+    DWORD EvaluateConfigure() { return sizeof(BTTTest_cfg); }
+
+    /**
+     * The following members inherited from the BitmapIO interface are not
+     * implemented. Their return values should not be considered, and can
+     * cause undefined side-effects.
+     */
+    const TCHAR* LongDesc() { return nullptr; }
+    const TCHAR* ShortDesc() { return nullptr; }
+    const TCHAR* AuthorName() { return nullptr; }
+    const TCHAR* CopyrightMessage() { return nullptr; }
+    unsigned int Version() { return 1; }
+    int  Capability() { return BMMIO_READER | BMMIO_WRITER | BMMIO_EXTENSION | BMMIO_CONTROLWRITE; }
+    void ShowAbout(HWND) { }
+    BMMRES         GetImageInfo(BitmapInfo*) { return BMMRES_SUCCESS; }
+    BitmapStorage* Load(BitmapInfo*, Bitmap*, BMMRES*) { return nullptr; }
+
+private:
+    struct BTTTest_cfg
+    {
+        int  MockBitdepth;
+        int  MockInterlaced;
+        BOOL MockSaved;
+    };
+    BTTTest_cfg btt_cfg;
+};
\ No newline at end of file
diff --git a/src/Tests/Unit/Mocks/MockCoreInterface.cpp b/src/Tests/Unit/Mocks/MockCoreInterface.cpp
new file mode 100644
index 0000000..b86031d
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockCoreInterface.cpp
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MockCoreInterface.h"
+
+// implemented in 3dswin\src\app\prefdlg.cpp
+void MAXScriptPrefs::SaveMAXScriptPreferences() { }
+
+void MAXScriptPrefs::LoadMAXScriptPreferences() { }
diff --git a/src/Tests/Unit/Mocks/MockCoreInterface.h b/src/Tests/Unit/Mocks/MockCoreInterface.h
new file mode 100644
index 0000000..575b421
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockCoreInterface.h
@@ -0,0 +1,1820 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MockDllDir.h"
+#include "MockLog.h"
+#include "MockRenderer.h"
+#include "MockViewExp.h"
+
+#include <maxscript/maxscript.h>
+
+#include <GetCOREInterface.h>
+#include <Tests/Unit/TestUtils.h>
+#include <bitmap.h>
+#include <plugin.h>
+
+// Interface changed from MCHAR* to MSTR in Max 2025
+#if MAX_RELEASE >= 26900
+#define MCHAR_TO_MSTR MSTR
+#define MCHAR_TO_MSTR_RET \
+    {                     \
+    }
+#else
+#define MCHAR_TO_MSTR     const MCHAR*
+#define MCHAR_TO_MSTR_RET nullptr
+#endif
+
+/**
+ * \brief Mock for 3ds Max's "Interface" interface.
+ */
+#if MAX_RELEASE >= 23900 && MAX_RELEASE < 27900 // Up to 2025
+class MockCoreInterface : public Interface17
+#elif MAX_RELEASE >= 27900
+class MockCoreInterface : public Interface18 // 3ds Max Beta
+#endif
+{
+protected:
+    /**
+     * The following properties are instantiated in order to return some data
+     * by reference by the Interface.
+     */
+    MockLogSys  SomeLog;
+    MockViewExp MockViewExp;
+    MSTR        SomeMSTR {};
+    BitmapInfo  SomeBitmapInfo;
+#if MAX_RELEASE < 26900
+    MtlBaseLib SomeMtlBaseLib;
+#else
+    TypedSingleRefMaker<MtlBaseLib> SomeMtlBaseLib;
+#endif
+    MaxSDK::AssetManagement::AssetUser SomeAssetUser;
+    Renderer*                          renderer { new MockRenderer() };
+    DllDir*                            dllDir { new MockDllDirInternal() };
+
+public:
+    /**
+     * The following methods are used by the MockCoreInterface in order to
+     * control the behavior of the Interface as it is passed to tests.
+     */
+
+    ~MockCoreInterface()
+    {
+        if (renderer != nullptr) {
+            delete renderer;
+        }
+        if (dllDir != nullptr) {
+            delete dllDir;
+        }
+    }
+
+    Renderer* GetRenderer(
+        RenderSettingID /*renderSettingID*/,
+        bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return renderer;
+    }
+
+    void AssignProductionRenderer(Renderer* newRenderer) override
+    {
+        if (renderer != nullptr) {
+            delete renderer;
+        }
+        renderer = newRenderer;
+    }
+
+    void* CreateInstance(SClass_ID superID, Class_ID classID) override { return nullptr; }
+
+    DllDir& GetDllDir() override { return *dllDir; }
+
+    DllDir* GetDllDirectory() override { return dllDir; }
+
+public:
+    /**
+     * The following members inherited from the Interface interface are not
+     * implemented. Their return values should not be considered, and can cause
+     * undefined side-effects.
+     */
+
+    HFONT GetAppHFont() override { return nullptr; }
+    void  RedrawViews(
+         TimeValue /*t*/,
+         DWORD /*vpFlags*/ = REDRAW_NORMAL,
+         ReferenceTarget* /*change*/ = NULL) override
+    {
+    }
+    BOOL                    SetActiveViewport(HWND /*hwnd*/) override { return FALSE; }
+    ViewExp&                GetActiveViewExp() override { return MockViewExp; }
+    void                    ForceCompleteRedraw(BOOL /*doDisabled*/ = TRUE) override { }
+    IObjCreate*             GetIObjCreate() override { return nullptr; }
+    IObjParam*              GetIObjParam() override { return nullptr; }
+    HWND                    GetMAXHWnd() const override { return nullptr; }
+    MaxSDK::QmaxMainWindow* GetQmaxMainWindow() const override { return nullptr; }
+    BOOL                    DisplayActiveCameraViewWithMultiPassEffect() override { return FALSE; }
+    BOOL SetActiveViewportTransparencyDisplay(int /*transType*/) override { return FALSE; }
+    void DisableSceneRedraw() override { }
+    void EnableSceneRedraw() override { }
+    int  IsSceneRedrawDisabled() override { return 0; }
+    void RegisterRedrawViewsCallback(RedrawViewsCallback* /*cb*/) override { }
+    void UnRegisterRedrawViewsCallback(RedrawViewsCallback* /*cb*/) override { }
+    void RegisterSelectFilterCallback(SelectFilterCallback* /*cb*/) override { }
+    void UnRegisterSelectFilterCallback(SelectFilterCallback* /*cb*/) override { }
+    void RegisterDisplayFilterCallback(DisplayFilterCallback* /*cb*/) override { }
+    void UnRegisterDisplayFilterCallback(DisplayFilterCallback* /*cb*/) override { }
+    BOOL SetSelectionType(BOOL /*autoWinCross*/, int /*winCrossOrAutoDir*/) override
+    {
+        return FALSE;
+    }
+    void MakeExtendedViewportActive(HWND /*hWnd*/) override { }
+    void PutUpViewMenu(HWND /*hWnd*/, POINT /*pt*/) override { }
+    BOOL TrackViewPickDlg(
+        HWND /*hParent*/,
+        TrackViewPick* /*res*/,
+        TrackViewFilter* /*filter*/ = NULL,
+        DWORD /*pickTrackFlags*/ = 0) override
+    {
+        return FALSE;
+    }
+    BOOL TrackViewPickMultiDlg(
+        HWND /*hParent*/,
+        MaxSDK::Array<TrackViewPick>* /*res*/,
+        TrackViewFilter* /*filter*/ = NULL,
+        DWORD /*pickTrackFlags*/ = 0) override
+    {
+        return FALSE;
+    }
+    void              PushCommandMode(CommandMode* /*m*/) override { }
+    void              SetCommandMode(CommandMode* /*m*/) override { }
+    void              PopCommandMode() override { }
+    CommandMode*      GetCommandMode() override { return nullptr; }
+    void              SetStdCommandMode(int /*cid*/) override { }
+    void              PushStdCommandMode(int /*cid*/) override { }
+    void              RemoveMode(CommandMode* /*m*/) override { }
+    void              DeleteMode(CommandMode* /*m*/) override { }
+    PickModeCallback* GetCurPickMode() override { return nullptr; }
+    BOOL DoHitByNameDialog(HitByNameDlgCallback* /*hbncb*/ = NULL) override { return FALSE; }
+    void PushPrompt(const MCHAR* /*s*/) override { }
+    void PopPrompt() override { }
+    void ReplacePrompt(const MCHAR* /*s*/) override { }
+    void DisplayTempPrompt(const MCHAR* /*s*/, int /*msec*/ = 1000) override { }
+    void RemoveTempPrompt() override { }
+    void DisableStatusXYZ() override { }
+    void EnableStatusXYZ() override { }
+    void SetStatusXYZ(Point3 /*xyz*/, int /*type*/) override { }
+    void SetStatusXYZ(AngAxis /*aa*/) override { }
+    void
+    ChooseDirectory(HWND /*hWnd*/, const MCHAR* /*title*/, MCHAR* /*dir*/, MCHAR* /*desc*/ = NULL)
+        override
+    {
+    }
+
+#if MAX_RELEASE < 24900
+
+    float GetAutoBackupTime() override { return 0.0f; }
+    void  SetAutoBackupTime(float /*minutes*/) override { }
+    BOOL  AutoBackupEnabled() override { return FALSE; }
+    void  EnableAutoBackup(BOOL /*onOff*/) override { }
+
+    BOOL ProgressStart(const wchar_t*, BOOL, LPTHREAD_START_ROUTINE, LPVOID) override
+    {
+        return TRUE;
+    }
+    void
+    ProgressUpdate(int /*pct*/, BOOL /*showPct*/ = TRUE, const MCHAR* /*title*/ = NULL) override
+    {
+    }
+#endif
+
+#if MAX_RELEASE >= 24900
+    bool ProgressStart(const wchar_t*, bool, LPTHREAD_START_ROUTINE, LPVOID) { return TRUE; }
+
+    bool ProgressStart(const wchar_t*, bool) override { return FALSE; }
+
+    void ProgressUpdate(int, bool = true, const MCHAR* = nullptr) override { }
+#endif
+
+    void ProgressEnd() override { }
+    BOOL GetCancel() override { return FALSE; }
+    void SetCancel(BOOL /*sw*/) override { }
+    void CreatePreview(
+        PreviewParams* /*pvp*/ = NULL,
+        MSTR* /*filename*/ = NULL,
+        MSTR* /*snippet*/ = NULL,
+        MAXScript::ScriptSource /*source*/ = MAXScript::ScriptSource::NotSpecified) override
+    {
+    }
+    float   GetGridSpacing() override { return 0.0f; }
+    int     GetGridMajorLines() override { return 0; }
+    void    SetExtendedDisplayMode(int /*vflags*/) override { }
+    int     GetExtendedDisplayMode() override { return 0; }
+    void    SetFlyOffTime(int /*msecs*/) override { }
+    int     GetFlyOffTime() override { return 0; }
+    HCURSOR GetSysCursor(int /*id*/) override { return 0; }
+    void    SetCrossHairCur(BOOL /*onOff*/) override { }
+    BOOL    GetCrossHairCur() override { return FALSE; }
+    void    RealizeParamPanel() override { }
+    float
+    SnapAngle(float /*angleIn*/, BOOL /*fastSnap*/ = TRUE, BOOL /*forceSnap*/ = FALSE) override
+    {
+        return 0.0f;
+    }
+    float  SnapPercent(float /*percentIn*/) override { return 0.0f; }
+    BOOL   GetSnapState() override { return FALSE; }
+    int    GetSnapMode() override { return 0; }
+    BOOL   SetSnapMode(int /*mode*/) override { return FALSE; }
+    void   SetPickMode(PickModeCallback* /*pCB*/) override { }
+    void   ClearPickMode() override { }
+    INode* PickNode(HWND /*hWnd*/, IPoint2 /*pt*/, PickNodeCallback* /*filt*/ = NULL) override
+    {
+        return nullptr;
+    }
+    void BoxPickNode(
+        ViewExp* /*vpt*/,
+        IPoint2* /*pt*/,
+        BOOL /*crossing*/,
+        PickNodeCallback* /*filt*/ = NULL) override
+    {
+    }
+    void CirclePickNode(
+        ViewExp* /*vpt*/,
+        IPoint2* /*pt*/,
+        BOOL /*crossing*/,
+        PickNodeCallback* /*filt*/ = NULL) override
+    {
+    }
+    void FencePickNode(
+        ViewExp* /*vpt*/,
+        IPoint2* /*pt*/,
+        BOOL /*crossing*/,
+        PickNodeCallback* /*filt*/ = NULL) override
+    {
+    }
+    void
+    RegisterSubObjectTypes(const MCHAR** /*types*/, int /*count*/, int /*startIndex*/ = 0) override
+    {
+    }
+    void AppendSubObjectNamedSelSet(const MCHAR* /*set*/) override { }
+    void ClearSubObjectNamedSelSets() override { }
+    void ClearCurNamedSelSet() override { }
+    void SetCurNamedSelSet(const MCHAR* /*setName*/) override { }
+    void NamedSelSetListChanged() override { }
+    int  GetSubObjectLevel() override { return 0; }
+    void SetSubObjectLevel(int /*level*/, BOOL /*force*/ = FALSE) override { }
+    int  GetNumSubObjectLevels() override { return 0; }
+    void PipeSelLevelChanged() override { }
+    void GetPipelineSubObjLevel(DWORDTab& /*levels*/) override { }
+    int  SubObHitTest(
+         TimeValue /*t*/,
+         int /*type*/,
+         int /*crossing*/,
+         int /*vflags*/,
+         IPoint2* /*p*/,
+         ViewExp* /*vpt*/) override
+    {
+        return 0;
+    }
+    void         GetModContexts(ModContextList& /*list*/, INodeTab& /*nodes*/) override { }
+    BaseObject*  GetCurEditObject() override { return nullptr; }
+    BOOL         SelectionFrozen() override { return FALSE; }
+    void         FreezeSelection() override { }
+    void         ThawSelection() override { }
+    INode*       GetSelNode(int /*i*/) override { return nullptr; }
+    int          GetSelNodeCount() override { return 0; }
+    void         EnableShowEndResult(BOOL /*enabled*/) override { }
+    BOOL         GetShowEndResult() override { return FALSE; }
+    void         SetShowEndResult(BOOL /*show*/) override { }
+    BOOL         GetCrossing() override { return FALSE; }
+    void         SetToolButtonState(int /*button*/, BOOL /*state*/) override { }
+    BOOL         GetToolButtonState(int /*button*/) override { return FALSE; }
+    void         EnableToolButton(int /*button*/, BOOL /*enable*/ = TRUE) override { }
+    void         EnableUndo(BOOL /*enable*/) override { }
+    int          GetCommandPanelTaskMode() override { return 0; }
+    void         SetCommandPanelTaskMode(int /*mode*/) override { }
+    ViewExp&     GetViewExp(HWND /*hwnd*/) override { return MockViewExp; }
+    void         EnableAnimateButton(BOOL /*enable*/) override { }
+    BOOL         IsAnimateEnabled() override { return FALSE; }
+    void         SetAnimateButtonState(BOOL /*onOff*/) override { }
+    bool         InProgressiveMode() override { return false; }
+    void         BeginProgressiveMode() override { }
+    void         EndProgressiveMode() override { }
+    void         RegisterAxisChangeCallback(AxisChangeCallback* /*cb*/) override { }
+    void         UnRegisterAxisChangeCallback(AxisChangeCallback* /*cb*/) override { }
+    int          GetAxisConstraints() override { return 0; }
+    void         SetAxisConstraints(int /*c*/) override { }
+    void         EnableAxisConstraints(int /*c*/, BOOL /*enabled*/) override { }
+    void         PushAxisConstraints(int /*c*/) override { }
+    void         PopAxisConstraints() override { }
+    int          GetCoordCenter() override { return 0; }
+    void         SetCoordCenter(int /*c*/) override { }
+    void         EnableCoordCenter(BOOL /*enabled*/) override { }
+    int          GetRefCoordSys() override { return 0; }
+    void         SetRefCoordSys(int /*c*/) override { }
+    void         EnableRefCoordSys(BOOL /*enabled*/) override { }
+    int          GetSelectFilter() override { return 0; }
+    void         SetSelectFilter(int /*c*/) override { }
+    int          GetNumberSelectFilters() override { return 0; }
+    const MCHAR* GetSelectFilterName(int /*index*/) override { return nullptr; }
+    BOOL         GetDisplayFilter(int /*index*/) override { return FALSE; }
+    void         SetDisplayFilter(int /*index*/, BOOL /*on*/) override { }
+    int          GetNumberDisplayFilters() override { return 0; }
+#if MAX_RELEASE < 25900
+    BOOL DisplayFilterIsNodeVisible(int /*index*/, int /*sid*/, Class_ID /*cid*/, INode* /*node*/)
+        override
+#else
+    BOOL DisplayFilterIsNodeHidden(int /*index*/, int /*sid*/, Class_ID /*cid*/, INode* /*node*/)
+        override
+#endif
+    {
+        return FALSE;
+    }
+    const MCHAR* GetDisplayFilterName(int /*index*/) override { return nullptr; }
+    Matrix3 GetTransformAxis(INode* /*node*/, int /*subIndex*/, BOOL* /*local*/ = NULL) override
+    {
+        return Matrix3();
+    }
+    int             GetNumAxis() override { return 0; }
+    void            LockAxisTripods(BOOL /*onOff*/) override { }
+    BOOL            AxisTripodLocked() override { return FALSE; }
+    void            RegisterDlgWnd(HWND /*hDlg*/) override { }
+    int             UnRegisterDlgWnd(HWND /*hDlg*/) override { return 0; }
+    void            RegisterAccelTable(HWND /*hWnd*/, HACCEL /*hAccel*/) override { }
+    int             UnRegisterAccelTable(HWND /*hWnd*/, HACCEL /*hAccel*/) override { return 0; }
+    IActionManager* GetActionManager() override { return nullptr; }
+#if MAX_RELEASE < 26900
+    IMenuManager* GetMenuManager() override { return nullptr; }
+#endif
+#if MAX_RELEASE >= 26900
+    MaxSDK::CUI::ICuiMenuManager*     GetICuiMenuManager() { return nullptr; }
+    MaxSDK::CUI::ICuiQuadMenuManager* GetICuiQuadMenuManager() { return nullptr; }
+#endif
+    HWND AddRollupPage(
+        HINSTANCE /*hInst*/,
+        const MCHAR* /*dlgTemplate*/,
+        DLGPROC /*dlgProc*/,
+        const MCHAR* /*title*/,
+        LPARAM /*param*/ = 0,
+        DWORD /*rollUpFlags*/ = 0,
+        int /*category*/ = ROLLUP_CAT_STANDARD) override
+    {
+        return nullptr;
+    }
+    void AddRollupPage(
+        QWidget& /*qtWidget*/,
+        const MCHAR* /*title*/,
+        DWORD /*rollupFlags*/ = 0,
+        int /*category*/ = ROLLUP_CAT_STANDARD) override
+    {
+    }
+    HWND AddRollupPage(
+        HINSTANCE /*hInst*/,
+        DLGTEMPLATE* /*dlgTemplate*/,
+        DLGPROC /*dlgProc*/,
+        const MCHAR* /*title*/,
+        LPARAM /*param*/ = 0,
+        DWORD /*rollUpFlags*/ = 0,
+        int /*category*/ = ROLLUP_CAT_STANDARD) override
+    {
+        return nullptr;
+    }
+    void DeleteRollupPage(HWND /*hRollup*/) override { }
+    void DeleteRollupPage(QWidget& /*qtWidget*/) override { }
+    HWND ReplaceRollupPage(
+        HWND /*hOldRollup*/,
+        HINSTANCE /*hInst*/,
+        const MCHAR* /*dlgTemplate*/,
+        DLGPROC /*dlgProc*/,
+        const MCHAR* /*title*/,
+        LPARAM /*param*/ = 0,
+        DWORD /*rollUpFlags*/ = 0,
+        int /*category*/ = ROLLUP_CAT_STANDARD) override
+    {
+        return nullptr;
+    }
+    HWND ReplaceRollupPage(
+        HWND /*hOldRollup*/,
+        HINSTANCE /*hInst*/,
+        DLGTEMPLATE* /*dlgTemplate*/,
+        DLGPROC /*dlgProc*/,
+        const MCHAR* /*title*/,
+        LPARAM /*param*/ = 0,
+        DWORD /*rollUpFlags*/ = 0,
+        int /*category*/ = ROLLUP_CAT_STANDARD) override
+    {
+        return nullptr;
+    }
+    IRollupWindow* GetCommandPanelRollup() override { return nullptr; }
+    void RollupMouseMessage(HWND /*hDlg*/, UINT /*message*/, WPARAM /*wParam*/, LPARAM /*lParam*/)
+        override
+    {
+    }
+    TimeValue GetTime() override { return 0; }
+    void      SetTime(TimeValue /*t*/, BOOL /*redraw*/ = TRUE) override { }
+    Interval  GetAnimRange() override { return NEVER; }
+    void      SetAnimRange(Interval /*range*/) override { }
+    void      RegisterTimeChangeCallback(TimeChangeCallback* /*tc*/) override { }
+    void      UnRegisterTimeChangeCallback(TimeChangeCallback* /*tc*/) override { }
+    void      RegisterCommandModeChangedCallback(CommandModeChangedCallback* /*cb*/) override { }
+    void      UnRegisterCommandModeChangedCallback(CommandModeChangedCallback* /*cb*/) override { }
+    void
+    RegisterViewportDisplayCallback(BOOL /*preScene*/, ViewportDisplayCallback* /*cb*/) override
+    {
+    }
+    void
+    UnRegisterViewportDisplayCallback(BOOL /*preScene*/, ViewportDisplayCallback* /*cb*/) override
+    {
+    }
+    void NotifyViewportDisplayCallbackChanged(BOOL /*preScene*/, ViewportDisplayCallback* /*cb*/)
+        override
+    {
+    }
+    void RegisterExitMAXCallback(ExitMAXCallback* /*cb*/) override { }
+    void UnRegisterExitMAXCallback(ExitMAXCallback* /*cb*/) override { }
+#if MAX_RELEASE < 27900
+    RightClickMenuManager* GetRightClickMenuManager() override { return nullptr; }
+#endif
+    void       RegisterDeleteUser(EventUser* /*user*/) override { }
+    void       UnRegisterDeleteUser(EventUser* /*user*/) override { }
+    void       MakeNameUnique(MSTR& /*name*/) override { }
+    INode*     CreateObjectNode(Object* /*obj*/) override { return nullptr; }
+    GenCamera* CreateCameraObject(int /*type*/) override { return nullptr; }
+    Object*    CreateTargetObject() override { return nullptr; }
+    GenLight*  CreateLightObject(int /*type*/) override { return nullptr; }
+    int        BindToTarget(INode* /*laNode*/, INode* /*targNode*/) override { return 0; }
+    int        IsCPEdgeOnInView() override { return 0; }
+    unsigned int
+    DeleteNode(INode* /*node*/, BOOL /*redraw*/ = TRUE, BOOL /*overrideSlaves*/ = FALSE) override
+    {
+        return 0;
+    }
+    INode* GetRootNode() override { return nullptr; }
+#if MAX_RELEASE < 25900
+    void SetNodeTMRelConstPlane(INode* /*node*/, Matrix3& /*mat*/) override
+#else
+    void SetNodeTMRelConstPlane(INode* /*node*/, const Matrix3& /*mat*/) override
+#endif
+    {
+    }
+    void    SelectNode(INode* /*node*/, int /*clearSel*/ = 1) override { }
+    void    DeSelectNode(INode* /*node*/) override { }
+    void    SelectNodeTab(INodeTab& /*nodes*/, BOOL /*sel*/, BOOL /*redraw*/ = TRUE) override { }
+    void    ClearNodeSelection(BOOL /*redraw*/ = TRUE) override { }
+    void    AddLightToScene(INode* /*node*/) override { }
+    float   GetLightConeConstraint() override { return 0.0f; }
+    void    AddGridToScene(INode* /*node*/) override { }
+    void    SetActiveGrid(INode* /*node*/) override { }
+    INode*  GetActiveGrid() override { return nullptr; }
+    void    StopCreating() override { }
+    Object* NonMouseCreate(Matrix3 /*tm*/) override { return nullptr; }
+    void    NonMouseCreateFinish(Matrix3 /*tm*/) override { }
+    MCHAR_TO_MSTR GetDir(int /*which*/) override
+    {
+#if MAX_RELEASE >= 26900
+        static MSTR dir(MaxUsd::UsdStringToMaxString(TestUtils::GetOutputDirectory()));
+        return dir;
+#else
+        static WStr dir = MaxUsd::UsdStringToMaxString(TestUtils::GetOutputDirectory());
+        return dir;
+#endif
+    }
+    int           GetPlugInEntryCount() override { return 0; }
+    MCHAR_TO_MSTR GetPlugInDesc(int /*i*/) override { return MCHAR_TO_MSTR_RET; }
+    MCHAR_TO_MSTR GetPlugInDir(int /*i*/) override { return MCHAR_TO_MSTR_RET; }
+    int GetAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) override { return 0; }
+    MCHAR_TO_MSTR GetAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return MCHAR_TO_MSTR_RET;
+    }
+    BOOL
+    AddAssetDir(const MCHAR* /*dir*/, MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return FALSE;
+    }
+    BOOL AddSessionAssetDir(
+        const MCHAR* /*dir*/,
+        MaxSDK::AssetManagement::AssetType /*assetType*/,
+        int /*update*/ = TRUE) override
+    {
+        return FALSE;
+    }
+    int GetSessionAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return 0;
+    }
+    MCHAR_TO_MSTR
+    GetSessionAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return MCHAR_TO_MSTR_RET;
+    }
+    BOOL DeleteSessionAssetDir(
+        int /*i*/,
+        MaxSDK::AssetManagement::AssetType /*assetType*/,
+        int /*update*/ = TRUE) override
+    {
+        return FALSE;
+    }
+    int GetCurAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) override { return 0; }
+    MCHAR_TO_MSTR
+    GetCurAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return MCHAR_TO_MSTR_RET;
+    }
+    int  DoExclusionListDialog(ExclList* /*nl*/, BOOL /*doShadows*/ = TRUE) override { return 0; }
+    void ConvertNameTabToExclList(const NameTab* /*nt*/, ExclList* /*excList*/) override { }
+    MtlBase*
+    DoMaterialBrowseDlg(HWND /*hParent*/, DWORD /*vflags*/, BOOL& /*newMat*/, BOOL& /*cancel*/)
+        override
+    {
+        return nullptr;
+    }
+    void          PutMtlToMtlEditor(MtlBase* /*mb*/, int /*slot*/ = -1) override { }
+    MtlBase*      GetMtlSlot(int /*slot*/) override { return nullptr; }
+    MtlBaseLib*   GetSceneMtls() override { return nullptr; }
+    BOOL          OkMtlForScene(MtlBase* /*m*/) override { return FALSE; }
+    MSTR&         GetCurFileName() override { return SomeMSTR; }
+    MSTR&         GetCurFilePath() override { return SomeMSTR; }
+    MCHAR_TO_MSTR GetMatLibFileName() override { return MCHAR_TO_MSTR_RET; }
+    void          FileOpen() override { }
+    BOOL          FileSave() override { return FALSE; }
+    BOOL          FileSaveAs() override { return FALSE; }
+    void          FileSaveSelected() override { }
+    void          FileReset(BOOL /*noPrompt*/ = FALSE) override { }
+    void          FileMerge() override { }
+    void          FileHold() override { }
+    void          FileFetch() override { }
+    void          FileOpenMatLib(HWND /*hWnd*/) override { }
+    void          FileSaveMatLib(HWND /*hWnd*/) override { }
+    void          FileSaveAsMatLib(HWND /*hWnd*/) override { }
+    void          LoadDefaultMatLib() override { }
+    int LoadFromFile(const MCHAR* /*name*/, BOOL /*refresh*/ = TRUE) override { return 0; }
+    int SaveToFile(
+        const MCHAR* /*fname*/,
+        BOOL /*clearNeedSaveFlag*/ = TRUE,
+        BOOL /*useNewFile*/ = TRUE) override
+    {
+        return 0;
+    }
+    void FileSaveSelected(const MCHAR* /*fname*/) override { }
+    void FileSaveNodes(INodeTab* /*nodes*/, const MCHAR* /*fname*/) override { }
+    int  LoadMaterialLib(const MCHAR* /*name*/, MtlBaseLib* /*lib*/ = NULL) override { return 0; }
+    int  SaveMaterialLib(const MCHAR* /*name*/, MtlBaseLib* /*lib*/ = NULL) override { return 0; }
+#if MAX_RELEASE < 25900
+    int MergeFromFile(
+        const MCHAR* /*name*/,
+        BOOL /*mergeAll*/ = FALSE,
+        BOOL /*selMerged*/ = FALSE,
+        BOOL /*refresh*/ = TRUE,
+        int /*dupAction*/ = MERGE_DUPS_PROMPT,
+        NameTab* /*mrgList*/ = NULL,
+        int /*dupMtlAction*/ = MERGE_DUP_MTL_PROMPT,
+        int /*reparentAction*/ = MERGE_REPARENT_PROMPT,
+        BOOL /*includeFullGroup*/ = FALSE) override
+#else
+    int MergeFromFile(
+        const MCHAR* /*name*/,
+        BOOL /*mergeAll*/ = FALSE,
+        BOOL /*selMerged*/ = FALSE,
+        BOOL /*refresh*/ = TRUE,
+        int /*dupAction*/ = MERGE_DUPS_PROMPT,
+        NameTab* /*mrgList*/ = NULL,
+        int /*dupMtlAction*/ = MERGE_DUP_MTL_PROMPT,
+        int /*reparentAction*/ = MERGE_REPARENT_PROMPT,
+        BOOL /*includeFullGroup*/ = FALSE,
+        MaxSDK::Array<MaxRefEntryData>* /*dataList*/ = nullptr) override
+#endif
+    {
+        return 0;
+    }
+    BOOL FileImport() override { return FALSE; }
+    BOOL FileExport() override { return FALSE; }
+    BOOL ImportFromFile(
+        const MCHAR* /*name*/,
+        BOOL /*suppressPrompts*/ = FALSE,
+        Class_ID* /*importerID*/ = NULL) override
+    {
+        return FALSE;
+    }
+    BOOL ExportToFile(
+        const MCHAR* /*name*/,
+        BOOL /*suppressPrompts*/ = FALSE,
+        DWORD /*options*/ = 0,
+        Class_ID* /*exporterID*/ = NULL) override
+    {
+        return FALSE;
+    }
+    BOOL NodeColorPicker(HWND /*hWnd*/, DWORD& /*col*/) override { return FALSE; }
+    INode*
+    GroupNodes(INodeTab* /*nodes*/ = NULL, MSTR* /*name*/ = NULL, BOOL /*selGroup*/ = TRUE) override
+    {
+        return nullptr;
+    }
+    void UngroupNodes(INodeTab* /*nodes*/ = NULL) override { }
+    void ExplodeNodes(INodeTab* /*nodes*/ = NULL) override { }
+    void OpenGroup(INodeTab* /*nodes*/ = NULL, BOOL /*clearSel*/ = TRUE) override { }
+    void CloseGroup(INodeTab* /*nodes*/ = NULL, BOOL /*selGroup*/ = TRUE) override { }
+    bool AttachNodesToGroup(INodeTab& /*nodes*/, INode& /*pTargetNode*/) override { return false; }
+    bool DetachNodesFromGroup(INodeTab& /*nodes*/) override { return false; }
+    void FlashNodes(INodeTab* /*nodes*/) override { }
+    void TranslateAndDispatchMAXMessage(MSG& /*msg*/) override { }
+    BOOL CheckMAXMessages() override { return FALSE; }
+    BOOL setBkgImageAsset(const MaxSDK::AssetManagement::AssetUser& /*asset*/) override
+    {
+        return FALSE;
+    }
+    const MaxSDK::AssetManagement::AssetUser& getBkgImageAsset(void) override
+    {
+        return SomeAssetUser;
+    }
+    void         setBkgImageAspect(int /*t*/) override { }
+    int          getBkgImageAspect() override { return 0; }
+    void         setBkgImageAnimate(BOOL /*onOff*/) override { }
+    int          getBkgImageAnimate(void) override { return 0; }
+    void         setBkgFrameRange(int /*start*/, int /*end*/, int /*step*/ = 1) override { }
+    int          getBkgFrameRangeVal(int /*which*/) override { return 0; }
+    void         setBkgORType(int /*which*/, int /*type*/) override { }
+    int          getBkgORType(int /*which*/) override { return 0; }
+    void         setBkgStartTime(TimeValue /*t*/) override { }
+    TimeValue    getBkgStartTime() override { return 0; }
+    void         setBkgSyncFrame(int /*f*/) override { }
+    int          getBkgSyncFrame() override { return 0; }
+    int          getBkgFrameNum(TimeValue /*t*/) override { return 0; }
+    BOOL         GetRealTimePlayback() override { return FALSE; }
+    void         SetRealTimePlayback(BOOL /*realTime*/) override { }
+    BOOL         GetPlayActiveOnly() override { return FALSE; }
+    void         SetPlayActiveOnly(BOOL /*playActive*/) override { }
+    void         StartAnimPlayback(int /*selOnly*/ = FALSE) override { }
+    void         EndAnimPlayback() override { }
+    BOOL         IsAnimPlaying() override { return FALSE; }
+    int          GetPlaybackSpeed() override { return 0; }
+    void         SetPlaybackSpeed(int /*s*/) override { }
+    BOOL         GetPlaybackLoop() override { return FALSE; }
+    void         SetPlaybackLoop(BOOL /*loop*/) override { }
+    void         IncrementValidityToken() override { }
+    unsigned int CurrentValidityToken() override { return 0; }
+    int          OpenCurRenderer(
+                 INode* /*camNode*/,
+                 ViewExp* /*view*/,
+                 RendType /*t*/ = RENDTYPE_NORMAL,
+                 int /*w*/ = 0,
+                 int /*h*/ = 0) override
+    {
+        return 0;
+    }
+    int OpenCurRenderer(
+        ViewParams* /*vpar*/,
+        RendType /*t*/ = RENDTYPE_NORMAL,
+        int /*w*/ = 0,
+        int /*h*/ = 0) override
+    {
+        return 0;
+    }
+    void CloseCurRenderer() override { }
+    int  CurRendererRenderFrame(
+         TimeValue /*t*/,
+         Bitmap* /*bm*/,
+         RendProgressCallback* /*prog*/ = NULL,
+         float /*frameDur*/ = 1.0f,
+         ViewParams* /*vp*/ = NULL,
+         RECT* /*regionRect*/ = NULL) override
+    {
+        return 0;
+    }
+    IScanRenderer* CreateDefaultScanlineRenderer() override { return nullptr; }
+    Renderer*      CreateDefaultRenderer(RenderSettingID /*renderSettingID*/) override
+    {
+        return nullptr;
+    }
+    Class_ID GetDefaultRendererClassID(RenderSettingID /*renderSettingID*/) override
+    {
+        return Class_ID(0x0, 0x0);
+    }
+    void
+    SetDefaultRendererClassID(RenderSettingID /*renderSettingID*/, Class_ID /*classID*/) override
+    {
+    }
+    int OpenRenderer(
+        Renderer* /*pRenderer*/,
+        INode* /*camNode*/,
+        ViewExp* /*view*/,
+        RendType /*type*/ = RENDTYPE_NORMAL,
+        int /*w*/ = 0,
+        int /*h*/ = 0) override
+    {
+        return 0;
+    }
+    int OpenRenderer(
+        Renderer* /*pRenderer*/,
+        ViewParams* /*vpar*/,
+        RendType /*type*/ = RENDTYPE_NORMAL,
+        int /*w*/ = 0,
+        int /*h*/ = 0) override
+    {
+        return 0;
+    }
+    int RendererRenderFrame(
+        Renderer* /*pRenderer*/,
+        TimeValue /*t*/,
+        Bitmap* /*bm*/,
+        RendProgressCallback* /*prog*/ = NULL,
+        float /*frameDur*/ = 1.0f,
+        ViewParams* /*vp*/ = NULL,
+        RECT* /*regionRect*/ = NULL) override
+    {
+        return 0;
+    }
+    void      CloseRenderer(Renderer* /*pRenderer*/) override { }
+    Renderer* GetCurrentRenderer(bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return nullptr;
+    }
+    Renderer* GetProductionRenderer(bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return nullptr;
+    }
+    Renderer* GetDraftRenderer(bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return nullptr;
+    }
+    void AssignCurRenderer(Renderer* /*rend*/) override { }
+    void AssignDraftRenderer(Renderer* /*rend*/) override { }
+    void AssignRenderer(RenderSettingID /*renderSettingID*/, Renderer* /*rend*/) override { }
+    void SetUseDraftRenderer(BOOL /*b*/) override { }
+    BOOL GetUseDraftRenderer() override { return FALSE; }
+    void ChangeRenderSetting(RenderSettingID /*renderSettingID*/) override { }
+    RenderSettingID GetCurrentRenderSetting() override { return RenderSettingID::RS_Production; }
+    Renderer*       GetMEditRenderer(bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return nullptr;
+    }
+    void      AssignMEditRenderer(Renderer* /*renderer*/) override { }
+    Renderer* GetActualMEditRenderer(bool /*createRendererIfItDoesntExist*/ = true) override
+    {
+        return nullptr;
+    }
+    bool               GetMEditRendererLocked() override { return false; }
+    void               SetMEditRendererLocked(bool /*locked*/) override { }
+    bool               GetMEditRendererLocked_DefaultValue() override { return false; }
+    void               SetMEditRendererLocked_DefaultValue(bool /*locked*/) override { }
+    IRenderElementMgr* GetCurRenderElementMgr() override { return nullptr; }
+    IRenderElementMgr* GetRenderElementMgr(RenderSettingID /*renderSettingID*/) override
+    {
+        return nullptr;
+    }
+    void
+    SetupRendParams(RendParams& /*rp*/, ViewExp* /*vpt*/, RendType /*t*/ = RENDTYPE_NORMAL) override
+    {
+    }
+    void GetViewParamsFromNode(INode* /*vnode*/, ViewParams& /*vp*/, TimeValue /*t*/) override { }
+    BOOL CheckForRenderAbort() override { return FALSE; }
+    void AbortRender() override { }
+    int  GetRendTimeType() override { return 0; }
+    void SetRendTimeType(int /*type*/) override { }
+    TimeValue   GetRendStart() override { return 0; }
+    void        SetRendStart(TimeValue /*start*/) override { }
+    TimeValue   GetRendEnd() override { return 0; }
+    void        SetRendEnd(TimeValue /*end*/) override { }
+    int         GetRendNThFrame() override { return 0; }
+    void        SetRendNThFrame(int /*n*/) override { }
+    BOOL        GetRendShowVFB() override { return FALSE; }
+    void        SetRendShowVFB(BOOL /*onOff*/) override { }
+    BOOL        GetRendSaveFile() override { return FALSE; }
+    void        SetRendSaveFile(BOOL /*onOff*/) override { }
+    BOOL        GetRendUseDevice() override { return FALSE; }
+    void        SetRendUseDevice(BOOL /*onOff*/) override { }
+    BOOL        GetRendUseNet() override { return FALSE; }
+    void        SetRendUseNet(BOOL /*onOff*/) override { }
+    BitmapInfo& GetRendFileBI() override { return SomeBitmapInfo; }
+    BitmapInfo& GetRendDeviceBI() override { return SomeBitmapInfo; }
+    int         GetRendWidth() override { return 0; }
+    void        SetRendWidth(int /*w*/) override { }
+    int         GetRendHeight() override { return 0; }
+    void        SetRendHeight(int /*h*/) override { }
+#if MAX_RELEASE < 25900
+    float GetRendApect() override
+#else
+    float GetRendPixelAspect() override
+#endif
+    {
+        return 0.0f;
+    }
+#if MAX_RELEASE < 25900
+    void SetRendAspect(float /*a*/) override
+#else
+    void SetRendPixelAspect(float /*a*/) override
+#endif
+    {
+    }
+    float          GetRendImageAspect() override { return 0.0f; }
+    float          GetRendApertureWidth() override { return 0.0f; }
+    void           SetRendApertureWidth(float /*aw*/) override { }
+    BOOL           GetRendFieldRender() override { return FALSE; }
+    void           SetRendFieldRender(BOOL /*onOff*/) override { }
+    BOOL           GetRendColorCheck() override { return FALSE; }
+    void           SetRendColorCheck(BOOL /*onOff*/) override { }
+    BOOL           GetRendSuperBlack() override { return FALSE; }
+    void           SetRendSuperBlack(BOOL /*onOff*/) override { }
+    BOOL           GetRendHidden() override { return FALSE; }
+    void           SetRendHidden(BOOL /*onOff*/) override { }
+    BOOL           GetRendForce2Side() override { return FALSE; }
+    void           SetRendForce2Side(BOOL /*onOff*/) override { }
+    BOOL           GetRendAtmosphere() override { return FALSE; }
+    void           SetRendAtmosphere(BOOL /*onOff*/) override { }
+    BOOL           GetRendEffects() override { return FALSE; }
+    void           SetRendEffects(BOOL /*onOff*/) override { }
+    BOOL           GetRendDisplacement() override { return FALSE; }
+    void           SetRendDisplacement(BOOL /*onOff*/) override { }
+    MSTR&          GetRendPickFramesString() override { return SomeMSTR; }
+    BOOL           GetRendDitherTrue() override { return FALSE; }
+    void           SetRendDitherTrue(BOOL /*onOff*/) override { }
+    BOOL           GetRendDither256() override { return FALSE; }
+    void           SetRendDither256(BOOL /*onOff*/) override { }
+    BOOL           GetRendMultiThread() override { return FALSE; }
+    void           SetRendMultiThread(BOOL /*onOff*/) override { }
+    BOOL           GetRendNThSerial() override { return FALSE; }
+    void           SetRendNThSerial(BOOL /*onOff*/) override { }
+    int            GetRendVidCorrectMethod() override { return 0; }
+    void           SetRendVidCorrectMethod(int /*m*/) override { }
+    int            GetRendFieldOrder() override { return 0; }
+    void           SetRendFieldOrder(int /*fo*/) override { }
+    int            GetRendNTSC_PAL() override { return 0; }
+    void           SetRendNTSC_PAL(int /*np*/) override { }
+    int            GetRendSuperBlackThresh() override { return 0; }
+    void           SetRendSuperBlackThresh(int /*sb*/) override { }
+    int            GetRendFileNumberBase() override { return 0; }
+    void           SetRendFileNumberBase(int /*n*/) override { }
+    BOOL           GetSkipRenderedFrames() override { return FALSE; }
+    void           SetSkipRenderedFrames(BOOL /*onOff*/) override { }
+    BOOL           GetRendSimplifyAreaLights() override { return FALSE; }
+    void           SetRendSimplifyAreaLights(BOOL /*onOff*/) override { }
+    DWORD          GetHideByCategoryFlags() override { return 0; }
+    void           SetHideByCategoryFlags(DWORD /*f*/) override { }
+    int            GetViewportLayout() override { return 0; }
+    void           SetViewportLayout(int /*layout*/) override { }
+    BOOL           IsViewportMaxed() override { return FALSE; }
+    void           SetViewportMax(BOOL /*max*/) override { }
+    void           ViewportZoomExtents(BOOL /*doAll*/, BOOL /*skipPersp*/ = FALSE) override { }
+    void           ZoomToBounds(BOOL /*doAll*/, Box3 /*box*/) override { }
+    void           GetSelectionWorldBox(TimeValue /*t*/, Box3& /*box*/) override { }
+    INode*         GetINodeByName(const MCHAR* /*name*/) override { return nullptr; }
+    INode*         GetINodeByHandle(ULONG /*handle*/) override { return nullptr; }
+    INode*         GetINodeFromRenderID(UWORD /*id*/) override { return nullptr; }
+    void           ExecuteMAXCommand(int /*id*/) override { }
+    NameMaker*     NewNameMaker(BOOL /*initFromScene*/ = TRUE) override { return nullptr; }
+    void           SetViewportBGColor(const Point3& /*color*/) override { }
+    Point3         GetViewportBGColor() override { return nullptr; }
+    Texmap*        GetEnvironmentMap() override { return nullptr; }
+    void           SetEnvironmentMap(Texmap* /*map*/) override { }
+    BOOL           GetUseEnvironmentMap() override { return FALSE; }
+    void           SetUseEnvironmentMap(BOOL /*onOff*/) override { }
+    Point3         GetAmbient(TimeValue /*t*/, Interval& /*valid*/) override { return nullptr; }
+    void           SetAmbient(TimeValue /*t*/, Point3 /*col*/) override { }
+    Control*       GetAmbientController() override { return nullptr; }
+    void           SetAmbientController(Control* /*c*/) override { }
+    Point3         GetLightTint(TimeValue /*t*/, Interval& /*valid*/) override { return nullptr; }
+    void           SetLightTint(TimeValue /*t*/, Point3 /*col*/) override { }
+    Control*       GetLightTintController() override { return nullptr; }
+    void           SetLightTintController(Control* /*c*/) override { }
+    float          GetLightLevel(TimeValue /*t*/, Interval& /*valid*/) override { return 0.0f; }
+    void           SetLightLevel(TimeValue /*t*/, float /*lev*/) override { }
+    Control*       GetLightLevelController() override { return nullptr; }
+    void           SetLightLevelController(Control* /*c*/) override { }
+    int            NumAtmospheric() override { return 0; }
+    Atmospheric*   GetAtmospheric(int /*i*/) override { return nullptr; }
+    void           SetAtmospheric(int /*i*/, Atmospheric* /*a*/) override { }
+    void           AddAtmosphere(Atmospheric* /*atmos*/) override { }
+    void           DeleteAtmosphere(int /*i*/) override { }
+    void           EditAtmosphere(Atmospheric* /*a*/, INode* /*gizmo*/ = NULL) override { }
+    Point3         GetBackGround(TimeValue /*t*/, Interval& /*valid*/) override { return nullptr; }
+    void           SetBackGround(TimeValue /*t*/, Point3 /*col*/) override { }
+    Control*       GetBackGroundController() override { return nullptr; }
+    void           SetBackGroundController(Control* /*c*/) override { }
+    int            NumEffects() override { return 0; }
+    Effect*        GetEffect(int /*i*/) override { return nullptr; }
+    void           SetEffect(int /*i*/, Effect* /*e*/) override { }
+    void           AddEffect(Effect* /*eff*/) override { }
+    void           DeleteEffect(int /*i*/) override { }
+    void           EditEffect(Effect* /*e*/, INode* /*gizmo*/ = NULL) override { }
+    SoundObj*      GetSoundObject() override { return nullptr; }
+    void           SetSoundObject(SoundObj* /*snd*/) override { }
+    IOsnapManager* GetOsnapManager() override { return nullptr; }
+    MouseManager*  GetMouseManager() override { return nullptr; }
+    void           InvalidateOsnapdraw() override { }
+    MtlBaseLib&    GetMaterialLibrary() override
+    {
+#if MAX_RELEASE < 26900
+        return SomeMtlBaseLib;
+#else
+        return *SomeMtlBaseLib;
+#endif
+    }
+    void    AssignNewName(Mtl* /*m*/) override { }
+    void    AssignNewName(Texmap* /*m*/) override { }
+    bool    IsNetworkRenderServer() const override { return false; }
+    LogSys* Log() override { return &SomeLog; }
+    INT_PTR Execute(
+        int /*cmd*/,
+        ULONG_PTR /*arg1*/ = 0,
+        ULONG_PTR /*arg2*/ = 0,
+        ULONG_PTR /*arg3*/ = 0,
+        ULONG_PTR /*arg4*/ = 0,
+        ULONG_PTR /*arg5*/ = 0,
+        ULONG_PTR /*arg6*/ = 0) override
+    {
+        return 0;
+    }
+    void*            GetInterface(DWORD /*id*/) override { return nullptr; }
+    BaseInterface*   GetInterface(Interface_ID /*id*/) override { return nullptr; }
+    ReferenceTarget* GetScenePointer() override { return nullptr; }
+    ITrackViewNode*  GetTrackViewRootNode() override { return nullptr; }
+    void             FreeSceneBitmaps() override { }
+    void             EnumAuxFiles(AssetEnumCallback& /*assetEnum*/, DWORD /*vflags*/) override { }
+    void             RenderTexmap(
+                    Texmap* /*tex*/,
+                    Bitmap* /*bm*/,
+                    float /*scale3d*/ = 1.0f,
+                    BOOL /*filter*/ = FALSE,
+                    BOOL /*display*/ = FALSE,
+                    float /*z*/ = 0.0f,
+                    TimeValue /*t*/ = GetCOREInterface()->GetTime(),
+                    bool /*bake*/ = false) override
+    {
+    }
+#if MAX_RELEASE >= 26900
+    void RescaleWorldUnits(float /*f*/, BOOL /*selected*/, Tab<INode*>* /*nodes*/) override
+#else
+    void RescaleWorldUnits(float /*f*/, BOOL /*selected*/) override
+#endif
+    {
+    }
+    int  InitSnapInfo(SnapInfo* /*info*/) override { return 0; }
+    BOOL GetKeyStepsSelOnly() override { return FALSE; }
+    void SetKeyStepsSelOnly(BOOL /*onOff*/) override { }
+    BOOL GetKeyStepsUseTrans() override { return FALSE; }
+    void SetKeyStepsUseTrans(BOOL /*onOff*/) override { }
+    BOOL GetKeyStepsPos() override { return FALSE; }
+    void SetKeyStepsPos(BOOL /*onOff*/) override { }
+    BOOL GetKeyStepsRot() override { return FALSE; }
+    void SetKeyStepsRot(BOOL /*onOff*/) override { }
+    BOOL GetKeyStepsScale() override { return FALSE; }
+    void SetKeyStepsScale(BOOL /*onOff*/) override { }
+    BOOL GetKeyStepsUseTrackBar() override { return FALSE; }
+    void SetKeyStepsUseTrackBar(BOOL /*onOff*/) override { }
+    BOOL GetUseTransformGizmo() override { return FALSE; }
+    void SetUseTransformGizmo(BOOL /*onOff*/) override { }
+    void SetTransformGizmoRestoreAxis(BOOL /*bOnOff*/) override { }
+    BOOL GetTransformGizmoRestoreAxis() override { return FALSE; }
+    BOOL GetConstantAxisRestriction() override { return FALSE; }
+    void SetConstantAxisRestriction(BOOL /*onOff*/) override { }
+    int  HitTestTransformGizmo(IPoint2* /*p*/, ViewExp* /*vpt*/, int /*axisFlags*/) override
+    {
+        return 0;
+    }
+    void         DeactivateTransformGizmo() override { }
+    int          ConfigureBitmapPaths() override { return 0; }
+    BOOL         DoSpaceArrayDialog(SpaceArrayCallback* /*sacb*/ = NULL) override { return FALSE; }
+    int          AddClass(ClassDesc* /*pCD*/) override { return 0; }
+    int          DeleteClass(ClassDesc* /*pCD*/) override { return 0; }
+    int          GetCommandStackSize() override { return 0; }
+    CommandMode* GetCommandStackEntry(int /*entry*/) override { return nullptr; }
+    void         AddSFXRollupPage(ULONG /*vflags*/ = 0) override { }
+    void         DeleteSFXRollupPage() override { }
+    void         RefreshSFXRollupPage() override { }
+    int          GetNumProperties(int /*PropertySet*/) override { return 0; }
+    int FindProperty(int /*PropertySet*/, const PROPSPEC* /*propspec*/) override { return 0; }
+    const PROPVARIANT* GetPropertyVariant(int /*PropertySet*/, int /*idx*/) override
+    {
+        return nullptr;
+    }
+    const PROPSPEC* GetPropertySpec(int /*PropertySet*/, int /*idx*/) override { return nullptr; }
+    void            AddProperty(
+                   int /*PropertySet*/,
+                   const PROPSPEC* /*propspec*/,
+                   const PROPVARIANT* /*propvar*/) override
+    {
+    }
+    void           DeleteProperty(int /*PropertySet*/, const PROPSPEC* /*propspec*/) override { }
+    BOOL           RegisterViewWindow(ViewWindow* /*vw*/) override { return FALSE; }
+    BOOL           UnRegisterViewWindow(ViewWindow* /*vw*/) override { return FALSE; }
+    ShadowType*    GetGlobalShadowGenerator() override { return nullptr; }
+    void           SetGlobalShadowGenerator(ShadowType* /*st*/) override { }
+    BOOL           GetImportZoomExtents() override { return FALSE; }
+    void           SetImportZoomExtents(BOOL /*onOff*/) override { }
+    bool           CanImportFile(const MCHAR* /*filename*/) override { return false; }
+    ITrackBar*     GetTrackBar() override { return nullptr; }
+    void           SetIncludeXRefsInHierarchy(BOOL /*onOff*/) override { }
+    BOOL           GetIncludeXRefsInHierarchy() override { return FALSE; }
+    BOOL           IsXRefAutoUpdateSuspended() override { return FALSE; }
+    void           SetXRefAutoUpdateSuspended(BOOL /*onOff*/) override { }
+    BOOL           IsSceneXRefNode(INode* /*node*/) override { return FALSE; }
+    MacroRecorder* GetMacroRecorder() override { return nullptr; }
+    void           UpdateMtlEditorBrackets() override { }
+    bool           IsTrialLicense() override { return false; }
+    bool           IsNetworkLicense() override { return false; }
+    BOOL           CheckForSave() override { return FALSE; }
+    void           SetMAXFileOpenDlg(MAXFileOpenDialog* /*dlg*/) override { }
+    void           SetMAXFileSaveDlg(MAXFileSaveDialog* /*dlg*/) override { }
+    void           RAMPlayer(
+                  HWND /*hWndParent*/,
+                  const MCHAR* /*szChanA*/ = NULL,
+                  const MCHAR* /*szChanB*/ = NULL) override
+    {
+    }
+    void FlushUndoBuffer() override { }
+    bool DeferredPluginLoadingEnabled() override { return false; }
+    void EnableDeferredPluginLoading(bool /*onOff*/) override { }
+    bool IsMaxFile(const MCHAR* /*filename*/) override { return false; }
+    bool IsInternetCachedFile(const MCHAR* /*filename*/) override { return false; }
+    bool CanImportBitmap(const MCHAR* /*filename*/) override { return false; }
+    bool CaptureSubObjectRegistration(bool /*OnOff*/, Class_ID /*cid*/) override { return false; }
+    bool DownloadUrl(
+        HWND /*hwnd*/,
+        const MCHAR* /*url*/,
+        const MCHAR* /*filename*/,
+        DWORD /*downloadFlags*/ = 0) override
+    {
+        return false;
+    }
+    INode*     GetImportCtxNode(void) override { return nullptr; }
+    ITreeView* CreateTreeViewChild(
+        ReferenceTarget* /*root*/,
+        HWND /*hParent*/,
+        DWORD /*style*/ = 0,
+        ULONG /*id*/ = 0,
+        int /*open*/ = OPENTV_SPECIAL) override
+    {
+        return nullptr;
+    }
+    void ConvertMtl(
+        TimeValue /*t*/,
+        Material& /*gm*/,
+        Mtl* /*mtl*/,
+        BOOL /*doTex*/,
+        int /*subNum*/,
+        float /*vis*/,
+        BOOL& /*needDecal*/,
+        INode* /*node*/,
+        BitArray* /*needTex*/,
+        GraphicsWindow* /*gw*/) override
+    {
+    }
+    bool CloneNodes(
+        INodeTab& /*nodes*/,
+        Point3& /*offset*/,
+        bool /*expandHierarchies*/ = true,
+        CloneType /*cloneType*/ = NODE_COPY,
+        INodeTab* /*resultSource*/ = NULL,
+        INodeTab* /*resultTarget*/ = NULL) override
+    {
+        return false;
+    }
+    void CollapseNode(INode* /*node*/, BOOL /*noWarning*/ = FALSE) override { }
+    BOOL CollapseNodeTo(INode* /*node*/, int /*modIndex*/, BOOL /*noWarning*/ = FALSE) override
+    {
+        return FALSE;
+    }
+    BOOL ConvertNode(INode* /*node*/, Class_ID& /*cid*/) override { return FALSE; }
+    IRenderPresetsManager* GetRenderPresetsManager() override { return nullptr; }
+    DefaultActionSys*      DefaultActions() override { return nullptr; }
+    BOOL                   SetQuietMode(BOOL /*onOff*/) override { return FALSE; }
+    BOOL                   GetQuietMode(BOOL /*checkServerMode*/ = TRUE) override { return TRUE; }
+    void                   SetAutoGridEnable(bool /*sw*/ = true) override { }
+    bool                   GetAutoGridEnable() override { return false; }
+    bool                   GetAutoGridState() override { return false; }
+    void                   SetAutoGridState(bool /*sw*/ = true) override { }
+
+    virtual void RenderTexmapRange(
+        Texmap*      tex,
+        Bitmap*      bm,
+        FBox2*       range,
+        TimeValue    t,
+        float        scale3d = 1.0f,
+        BOOL         filter = FALSE,
+        BOOL         display = FALSE,
+        bool         bake = false,
+        const MCHAR* name = NULL,
+        float        z = 0.0f,
+        BOOL         mono = false,
+        bool         disableBitmapProxies = false) override { };
+    virtual void SetPlayPreviewWhenDone(BOOL play) override { };
+    virtual BOOL GetPlayPreviewWhenDone() override { return TRUE; }
+
+    virtual bool ArchiveSceneFile(
+        const MCHAR*  archiveFileName,
+        unsigned long saveAsVersion = MAX_RELEASE) override
+    {
+        return false;
+    }
+
+    virtual bool GetSceneFileCompressOnSave() override { return false; }
+    virtual void SetSceneFileCompressOnSave(bool compress, bool persist) override { }
+
+    virtual void SetEnableTMCache(bool value, bool commitToInit) override { }
+    virtual bool GetEnableTMCache() const override { return false; }
+
+    virtual bool InNonInteractiveMode(bool checkTestMode = false) const override { return true; }
+    virtual void SetInNonInteractiveTestMode() const override { }
+
+    virtual void SetInSecureMode() override { }
+    virtual bool InSecureMode() const override { return false; }
+
+    virtual bool IsRibbonSupportEnabled() const override { return false; }
+
+    virtual void BreakSelectedKeyTangent() override { }
+
+    virtual void             UnifySelectedKeyTangent() override { }
+    virtual void             SetSelectedKeyTangentType(int type) override { }
+    virtual PathColoringType GetTrajectoryPathGradation() const override { return kNoGradation; }
+    virtual void             SetTrajectoryPathGradation(PathColoringType type) override { }
+
+    virtual bool GetUnselTrajectoryDrawFrameTicks() const override { return false; }
+    virtual void SetUnselTrajectoryDrawFrameTicks(bool draw) override { }
+    virtual bool GetUnselTrajectoryDrawKeys() const override { return false; }
+    virtual void SetUnselTrajectoryDrawKeys(bool draw) override { }
+    virtual bool TrimTrajectories() const override { return false; }
+    virtual void SetTrimTrajectories(bool trim) override { }
+    virtual bool IsFixedTrimRange() const override { return false; }
+    virtual void SetFixedTrimRange(bool fixedRange) override { }
+    virtual int  TrimTrajectoriesOffset() const override { return 0; }
+    virtual void SetTrimTrajectoriesOffset(int range) override { }
+    virtual int  GetTrimStart() const override { return 0; }
+    virtual void SetTrimStart(int startFrame) override { }
+    virtual int  GetTrimEnd() const override { return 0; }
+    virtual void SetTrimEnd(int endFrame) override { }
+
+    virtual bool GetSelTrajectoryDrawAllTangents() const override { return false; }
+    virtual void SetSelTrajectoryDrawAllTangents(bool draw) override { }
+    virtual bool GetSelTrajectoryDrawFrameTicks() const override { return false; }
+    virtual void SetSelTrajectoryDrawFrameTicks(bool draw) override { }
+    virtual bool GetSelTrajectoryDrawGradientTicks() const override { return false; }
+    virtual void SetSelTrajectoryDrawGradientTicks(bool draw) override { }
+    virtual bool GetTrajectoryDrawKeyTimes() const override { return false; }
+    virtual void SetTrajectoryDrawKeyTimes(bool draw) override { }
+    virtual bool GetSelTrajectoryDrawKeys() const override { return false; }
+    virtual void SetSelTrajectoryDrawKeys(bool draw) override { }
+    virtual void UpdateSceneMaterialLib() override { }
+
+    virtual int  GetRendViewID(const RenderSettingID renderSettingID) override { return 0; }
+    virtual void SetRendViewID(const RenderSettingID renderSettingID, const int viewportID) override
+    {
+    }
+    virtual ViewExp* GetCurrentRenderView() override { return nullptr; }
+    virtual void     SetShowWorldAxis(BOOL state) override { }
+    virtual BOOL     GetShowWorldAxis() override { return FALSE; }
+    virtual void     SetOverrideRenderSettingMtl(MtlBase* pOverrideRenderSettingMtl) override { }
+    virtual MtlBase* GetOverrideRenderSettingMtl() const override { return nullptr; }
+
+    virtual DWORD GetMainThreadID() override { return 0; }
+    virtual MSTR& GetCurTemplateAssetPath() override
+    {
+        static MSTR str;
+        return str;
+    }
+
+    virtual ViewExp&      GetViewExpByID(int viewID) override { return MockViewExp; }
+    virtual int           GetRendViewID() override { return 0; }
+    virtual void          SetRendViewID(int id) override { }
+    virtual PreviewParams GetPreviewParams() const { return PreviewParams(); }
+    virtual bool          OverrideLanguageSpecifiedInSceneFile() const override { return FALSE; }
+    virtual void   SetOverrideLanguageSpecifiedInSceneFile(bool overrideFileLangID) override { }
+    virtual bool   UseCodePageSpecifiedInSceneFile() const override { return FALSE; }
+    virtual void   SetUseCodePageSpecifiedInSceneFile(bool useFileCodePage) override { }
+    virtual LANGID LanguageToUseForFileIO() const override { return 0; }
+    virtual bool   SetLanguageToUseForFileIO(LANGID id) override { return FALSE; }
+    virtual UINT   CodePageForLanguage(LANGID id) const override { return 0; }
+    virtual bool   LegacyFilesCanBeStoredUsingUTF8() const override { return FALSE; }
+    virtual void   SetLegacyFilesCanBeStoredUsingUTF8(bool allowUTF8) override { }
+    virtual void   ConvertAppDataChunksContainingStringToUTF8(
+          Animatable*     anim,
+          const Class_ID& classID,
+          SClass_ID       superClassID,
+          Tab<DWORD>&     subIDs,
+          UINT            codePage) override
+    {
+    }
+    virtual UINT DefaultTextLoadCodePage() override { return 0; }
+    virtual UINT DefaultTextSaveCodePage(bool allow_utf8 = false) override { return 0; }
+
+    virtual ClassDesc* DoPickClassDlg(
+        HWND               hParent,
+        const MCHAR*       title,
+        SClass_ID          super,
+        PickClassCallback* pPickClassCB = NULL) override
+    {
+        return nullptr;
+    }
+    virtual int DoMultiplePickClassDlg(
+        HWND               hParent,
+        const MCHAR*       title,
+        SClass_ID          super,
+        PickClassCallback* pPickClassCB,
+        Tab<ClassDesc*>*   classDescTab) override
+    {
+        return 0;
+    }
+    virtual BOOL GetRendUseIterative() override { return FALSE; }
+    virtual void SetRendUseIterative(BOOL b) override { }
+    virtual bool SaveSceneAsVersion(
+        const MCHAR*  fname,
+        bool          clearNeedSaveFlag = true,
+        bool          useNewFile = true,
+        unsigned long saveAsVersion = MAX_RELEASE) override
+    {
+        return FALSE;
+    }
+    virtual bool SaveNodesAsVersion(
+        const MCHAR*    fname,
+        const INodeTab* nodes,
+        unsigned long   saveAsVersion = MAX_RELEASE) override
+    {
+        return FALSE;
+    }
+    virtual bool SaveSelectedNodesAsVersion(
+        const MCHAR*  fname,
+        unsigned long saveAsVersion = MAX_RELEASE) override
+    {
+        return FALSE;
+    }
+    virtual ILayerManager* GetLayerManager() override { return nullptr; }
+    virtual int            GetMtlDlgMode() override { return 0; }
+    virtual void           SetMtlDlgMode(int mode) override { }
+    virtual BOOL           IsMtlDlgShowing(int mode) override { return FALSE; }
+    virtual void           OpenMtlDlg(int mode) override { }
+    virtual void           CloseMtlDlg(int mode) override { }
+    virtual void           SetNameSuffixLength(unsigned short suffixLength) override { }
+    virtual unsigned short GetNameSuffixLength() const override { return 0; }
+
+    virtual RECT GetMainWindowClientRect() const override { return RECT(); }
+
+    virtual HRESULT OpenMAXStorageFile(const WCHAR* filename, IStorage** pIStorage) override
+    {
+        return 0;
+    }
+    virtual BOOL         GetRendUseActiveView() override { return FALSE; }
+    virtual void         SetRendUseActiveView(BOOL useActiveView) override { }
+    virtual int          GetRenderPresetMRUListCount() override { return 0; }
+    virtual const MCHAR* GetRenderPresetMRUListDisplayName(int i) override { return nullptr; }
+    virtual const MCHAR* GetRenderPresetMRUListFileName(int i) override { return nullptr; }
+    virtual Matrix3      GetTransformGizmoTM() const override { return Matrix3(); }
+    virtual void         DisplayViewportConfigDialogPage(int i) override { }
+
+    virtual bool      GetTrajectoryMode() const override { return FALSE; }
+    virtual void      SetTrajectoryMode(bool flag) override { }
+    virtual bool      GetTrajectoryKeySubMode() const override { return FALSE; }
+    virtual void      SetTrajectoryKeySubMode(bool flag) override { }
+    virtual bool      GetTrajectoryAddKeyMode() const override { return FALSE; }
+    virtual void      SetTrajectoryAddKeyMode(bool flag) override { }
+    virtual void      DeleteSelectedTrajectoryKey() override { }
+    virtual BOOL      GetAutoKeyDefaultKeyOn() const override { return FALSE; }
+    virtual void      SetAutoKeyDefaultKeyOn(BOOL setKey) override { }
+    virtual TimeValue GetAutoKeyDefaultKeyTime() const override { return 0; }
+    virtual void      SetAutoKeyDefaultKeyTime(TimeValue t) override { }
+    virtual void      FindNodes(
+             const Tab<INode*>& templateNodes,
+             Tab<INode*>&       foundNodes,
+             const unsigned int nodePropsToMatch = kNodeProp_All) override
+    {
+    }
+    virtual MSTR GetPrompt() override { return L""; }
+    virtual void FormatRenderTime(DWORD msec, MSTR& str, BOOL hundredths = FALSE) override { }
+
+    virtual bool DoMaxBrowseForFolder(HWND aOwner, const MSTR& aInstructions, MSTR& aDir) override
+    {
+        return FALSE;
+    }
+
+    virtual unsigned int DeleteNodes(
+        INodeTab& aNodes,
+        bool      aKeepChildTM = true,
+        bool      aRedraw = true,
+        bool      overrideSlaveTM = false) override
+    {
+        return 0;
+    }
+
+    virtual int QuickRender(
+        TimeValue             t = TIME_PosInfinity,
+        Bitmap*               rendbm = NULL,
+        RendProgressCallback* prog = NULL) override
+    {
+        return 0;
+    }
+    virtual void                  GetRendFrameList(IntTab& frameNums) override { }
+    virtual RendProgressCallback* GetRendProgressCallback() override { return nullptr; }
+    virtual void                  SetRendProgressCallback(RendProgressCallback* prog) override { }
+    virtual INode*                GetRendCamNode() override { return nullptr; }
+    virtual void                  SetRendCamNode(INode* camNode) override { }
+    virtual BOOL                  GetRendUseImgSeq() override { return FALSE; }
+    virtual void                  SetRendUseImgSeq(BOOL onOff) override { }
+    virtual int                   GetRendImgSeqType() override { return 0; }
+    virtual void                  SetRendImgSeqType(int type) override { }
+    virtual void                  CreateRendImgSeq(CreateRendImgSeqCallback* cb = NULL) override { }
+    virtual const MaxSDK::AssetManagement::AssetUser& GetPreRendScriptAsset()
+    {
+        return SomeAssetUser;
+    }
+    virtual void SetPreRendScriptAsset(const MaxSDK::AssetManagement::AssetUser& script) override {
+    }
+    virtual BOOL GetUsePreRendScript() override { return FALSE; }
+    virtual void SetUsePreRendScript(BOOL onOff) override { }
+    virtual BOOL GetLocalPreRendScript() override { return FALSE; }
+    virtual void SetLocalPreRendScript(BOOL onOff) override { }
+    virtual const MaxSDK::AssetManagement::AssetUser& GetPostRendScriptAsset()
+    {
+        return SomeAssetUser;
+    }
+    virtual void SetPostRendScriptAsset(const MaxSDK::AssetManagement::AssetUser& script) override
+    {
+    }
+    virtual BOOL GetUsePostRendScript() override { return FALSE; }
+    virtual void SetUsePostRendScript(BOOL onOff) override { }
+    virtual BOOL GetControllerOverrideRangeDefault() override { return FALSE; }
+    virtual void SetControllerOverrideRangeDefault(BOOL override) override { }
+    virtual void GetDefaultTangentType(int& dfltInTangentType, int& dfltOutTangentType) override { }
+    virtual void SetDefaultTangentType(
+        int  dfltInTangentType,
+        int  dfltOutTangentType,
+        BOOL writeInCfgFile = TRUE) override
+    {
+    }
+    virtual BOOL GetSpringQuickEditMode() const override { return FALSE; }
+    virtual void SetSpringQuickEditMode(BOOL in_quickEdit) override { }
+    virtual void SetSpringRollingStart(int in_start) override { }
+    virtual int  GetSpringRollingStart() const override { return 0; }
+    virtual void ColorById(DWORD id, Color& c) override { }
+    virtual void RegisterExitMAXCallback(ExitMAXCallback2* cb) override { }
+    virtual void UnRegisterExitMAXCallback(ExitMAXCallback2* cb) override { }
+    virtual bool DoMaxSaveAsDialog(
+        HWND        parentWnd,
+        const MSTR& title,
+        MSTR&       filename,
+        MSTR&       initialDir,
+        FilterList& extensionList) override
+    {
+        return FALSE;
+    }
+    virtual bool DoMaxOpenDialog(
+        HWND        parentWnd,
+        const MSTR& title,
+        MSTR&       filename,
+        MSTR&       initialDir,
+        FilterList& extensionList) override
+    {
+        return FALSE;
+    }
+    virtual void RegisterModelessRenderWindow(HWND hWnd) override { }
+    virtual void UnRegisterModelessRenderWindow(HWND hWnd) override { }
+    virtual bool IsRegisteredModelessRenderWindow(HWND hWnd) override { return FALSE; }
+    virtual bool IsSavingToFile() override { return FALSE; }
+    virtual bool LoadFromFile(const MCHAR* szFilename, unsigned long lFlags) override
+    {
+        return FALSE;
+    }
+    virtual bool RevealInExplorer(const MSTR& path) override { return FALSE; }
+
+    virtual void      GetSelNodeTab(INodeTab& selectedNodes) const override { }
+    virtual PivotMode GetPivotMode() const override { return kPIV_NONE; }
+    virtual void      SetPivotMode(PivotMode pivMode) override { }
+    virtual bool      GetAffectChildren() const override { return FALSE; }
+    virtual void      SetAffectChildren(bool bAffectChildren) override { }
+
+    virtual void GetCurRefCoordSysName(MSTR& name) const override { }
+
+    virtual void   AddRefCoordNode(INode* node) override { }
+    virtual INode* GetRefCoordNode() override { return nullptr; }
+
+    virtual bool ShouldContinueRenderOnError() const override { return FALSE; }
+
+    virtual void
+    SetupFrameRendParams(FrameRendParams& frp, RendParams& rp, ViewExp* vx, RECT* r) override
+    {
+    }
+    virtual void SetupFrameRendParams_MXS(
+        FrameRendParams& frp,
+        RendParams&      rp,
+        ViewExp*         vx,
+        RECT*            r,
+        bool             useSelBox) override
+    {
+    }
+
+#if MAX_RELEASE < 25900
+    // Signature changed in 2024+
+    virtual int InitDefaultLights(
+        DefaultLight* dl,
+        int           maxn,
+        BOOL          applyGlobalLevel = FALSE,
+        ViewExp*      vx = NULL,
+        BOOL          forRenderer = FALSE) override
+    {
+        return 0;
+    }
+#else
+    virtual int Interface7::InitDefaultLights(DefaultLight*, int, BOOL, ViewExp*) override
+    {
+        return 0;
+    }
+#endif
+
+    virtual void IncrRenderActive() override { }
+    virtual void DecrRenderActive() override { }
+    virtual BOOL IsRenderActive() override { return FALSE; }
+
+    virtual BOOL XRefRenderBegin() override { return FALSE; }
+    virtual void XRefRenderEnd() override { }
+
+    virtual void OpenRenderDialog() override { }
+    virtual void CancelRenderDialog() override { }
+    virtual void CloseRenderDialog() override { }
+    virtual void CommitRenderDialogParameters() override { }
+    virtual void UpdateRenderDialogParameters() override { }
+    virtual BOOL RenderDialogOpen() override { return FALSE; }
+
+    virtual Bitmap* GetLastRenderedImage() override { return nullptr; }
+
+    virtual HWND GetStatusPanelHWnd() override { return nullptr; }
+    virtual void SetListenerMiniHWnd(HWND wnd) override { }
+    virtual HWND GetListenerMiniHWnd() override { return nullptr; }
+
+    virtual int MAXScriptHelp(const MCHAR* keyword = NULL) { return 0; }
+
+    virtual MAXScriptPrefs& GetMAXScriptPrefs() override
+    {
+        static MAXScriptPrefs s;
+        return s;
+    }
+
+    virtual BOOL OpenTrackViewWindow(
+        const MCHAR* tv_name,
+        const MCHAR* layoutName = NULL,
+        Point2       pos = Point2(-1.0f, -1.0f),
+        int          width = -1,
+        int          height = -1,
+        int          dock = TV_FLOAT) override
+    {
+        return FALSE;
+    }
+
+    virtual BOOL BringTrackViewWindowToTop(const MCHAR* tv_name) override { return FALSE; }
+
+    virtual BOOL TrackViewZoomSelected(const MCHAR* tv_name) override { return FALSE; }
+    virtual BOOL TrackViewZoomOn(const MCHAR* tv_name, Animatable* parent, int subNum) override
+    {
+        return FALSE;
+    }
+    virtual BOOL         CloseTrackView(const MCHAR* tv_name) override { return FALSE; }
+    virtual int          NumTrackViews() { return 0; }
+    virtual const MCHAR* GetTrackViewName(int i) override { return nullptr; }
+    virtual BOOL
+    SetTrackViewFilter(const MCHAR* tv_name, DWORD mask, int which, BOOL redraw = TRUE) override
+    {
+        return FALSE;
+    }
+    virtual BOOL
+    ClearTrackViewFilter(const MCHAR* tv_name, DWORD mask, int which, BOOL redraw = TRUE) override
+    {
+        return FALSE;
+    }
+    virtual DWORD TestTrackViewFilter(const MCHAR* tv_name, DWORD mask, int which) { return 0; }
+    virtual void  FlushAllTrackViewWindows() override { }
+    virtual void  UnFlushAllTrackViewWindows() override { }
+    virtual void  CloseAllTrackViewWindows() override { }
+
+    virtual void SetCurEditObject(BaseObject* obj, INode* hintNode = NULL) override { }
+    virtual void AddModToSelection(Modifier* mod) override { }
+    virtual void InvalidateObCache(INode* node) override { }
+#if MAX_RELEASE >= 26900
+    virtual Tab<INode*> FindNodesFromBaseObject(
+        ReferenceTarget* obj,
+        bool             allowXRefNodes = true,
+        bool             allowNonSceneNodes = true,
+        bool             allowScriptedPlugins = false,
+        bool             allowXrefObjects = false,
+        bool             handleBranching = false) override
+    {
+        return Tab<INode*>();
+    }
+#endif
+#if MAX_RELEASE >= 26900
+    virtual INode* FindNodeFromBaseObject(
+        ReferenceTarget* obj,
+        bool             allowXRefNodes = true,
+        bool             allowNonSceneNodes = true,
+        bool             allowScriptedPlugins = false,
+        bool             allowXrefObjects = false,
+        bool             handleBranching = false,
+        bool             preferSelected = false) override
+#else
+    virtual INode* FindNodeFromBaseObject(ReferenceTarget* obj) override
+#endif
+    {
+        return nullptr;
+    }
+    virtual void SelectedHistoryChanged() override { }
+    virtual BOOL CmdPanelOpen() override { return FALSE; }
+    virtual void CmdPanelOpen(BOOL openClose) override { }
+
+    virtual void
+    SuspendEditing(DWORD whichPanels = (1 << TASK_MODE_MODIFY), BOOL alwaysSuspend = FALSE) override
+    {
+    }
+    virtual void
+    ResumeEditing(DWORD whichPanels = (1 << TASK_MODE_MODIFY), BOOL alwaysSuspend = FALSE) override
+    {
+    }
+    virtual void SuspendMotionEditing() override { }
+    virtual void ResumeMotionEditing() override { }
+    virtual int
+    AddClass(ClassDesc* cdesc, int dllNum = -1, int index = -1, bool load = true) override
+    {
+        return 0;
+    }
+    virtual void ReBuildSuperList() override { }
+    virtual BOOL IsEditing() override { return FALSE; }
+    virtual void ChangeHistory(int upDown) override { }
+
+    virtual void   StartCreatingObject(ClassDesc* pCD) override { }
+    virtual BOOL   IsCreatingObject(const Class_ID& id) override { return FALSE; }
+    virtual BOOL   IsCreatingObject() override { return FALSE; }
+    virtual void   UpdateLockCheckObjectCounts() override { }
+    virtual INode* CreateObjectNode(Object* obj, const MCHAR* name) override { return nullptr; }
+
+    virtual BOOL SetDir(int which, const MCHAR* dir) override { return FALSE; }
+    virtual BOOL AddAssetDir(
+        const MCHAR*                       dir,
+        MaxSDK::AssetManagement::AssetType assetType,
+        int                                update = TRUE) override
+    {
+        return FALSE;
+    }
+    virtual BOOL
+    DeleteAssetDir(int i, MaxSDK::AssetManagement::AssetType assetType, int update = TRUE) override
+    {
+        return FALSE;
+    }
+    virtual void UpdateAssetSection(MaxSDK::AssetManagement::AssetType assetType) override { }
+
+    virtual BOOL AppendToCurFilePath(const MCHAR* toAppend) override { return FALSE; }
+
+    virtual MSTR GetMAXIniFile() override { return L""; }
+
+    virtual BOOL         OpenSchematicViewWindow(const MCHAR* sv_name) override { return FALSE; }
+    virtual BOOL         SchematicViewZoomSelected(const MCHAR* sv_name) override { return FALSE; }
+    virtual BOOL         CloseSchematicView(const MCHAR* sv_name) override { return FALSE; }
+    virtual int          NumSchematicViews() { return 0; }
+    virtual const MCHAR* GetSchematicViewName(int i) override { return nullptr; }
+    virtual void         CloseAllSchematicViewWindows() override { }
+    virtual void         FlushAllSchematicViewWindows() override { }
+    virtual void         UnFlushAllSchematicViewWindows() override { }
+
+    virtual BOOL DrawingEnabled() override { return FALSE; }
+    virtual void EnableDrawing(BOOL onOff) override { }
+    virtual BOOL SceneResetting() override { return FALSE; }
+    virtual BOOL QuitingApp() override { return FALSE; }
+
+    virtual BOOL GetHideFrozen() override { return FALSE; }
+    virtual void SetSceneDisplayFlag(DWORD flag, BOOL onOff, BOOL updateUI = TRUE) override { }
+    virtual BOOL GetSceneDisplayFlag(DWORD flag) override { return FALSE; }
+
+    virtual IScene* GetScene() override { return nullptr; }
+
+    virtual void SetMtlSlot(int i, MtlBase* m) override { }
+    virtual int  GetActiveMtlSlot() override { return 0; }
+    virtual void SetActiveMtlSlot(int i) override { }
+    virtual int  NumMtlSlots() override { return 0; }
+    virtual void FlushMtlDlg() override { }
+    virtual void UnFlushMtlDlg() override { }
+    virtual BOOL IsMtlInstanced(MtlBase* m) override { return FALSE; }
+
+    virtual Mtl* FindMtlNameInScene(MSTR& name) override { return nullptr; }
+    virtual void
+    PutMaterial(MtlBase* mtl, MtlBase* oldMtl, BOOL delOld = 1, RefMakerHandle skipThis = 0)
+        override
+    {
+    }
+    virtual BOOL IsMtlDlgShowing() override { return FALSE; }
+    virtual void OpenMtlDlg() override { }
+    virtual void CloseMtlDlg() override { }
+
+    virtual HWND     GetViewPanelHWnd() override { return nullptr; }
+    virtual int      getActiveViewportIndex() override { return 0; }
+    virtual BOOL     setActiveViewport(int index) override { return FALSE; }
+    virtual int      getNumViewports() override { return 0; }
+    virtual ViewExp& getViewExp(int i) override { return MockViewExp; }
+
+    virtual void resetAllViews() override { }
+
+    /// Viewport name access
+    virtual const MCHAR* getActiveViewportLabel() override { return nullptr; }
+    virtual const MCHAR* getViewportLabel(int index) override { return nullptr; }
+
+    virtual void  SetRegionRect(int index, Rect r) override { }
+    virtual Rect  GetRegionRect(int index) override { return Rect(); }
+    virtual void  SetBlowupRect(int index, Rect r) override { }
+    virtual Rect  GetBlowupRect(int index) override { return Rect(); }
+    virtual void  SetRegionRect2(int index, Rect r) override { }
+    virtual Rect  GetRegionRect2(int index) override { return Rect(); }
+    virtual void  SetBlowupRect2(int index, Rect r) override { }
+    virtual Rect  GetBlowupRect2(int index) override { return Rect(); }
+    virtual int   GetRenderType() override { return 0; }
+    virtual void  SetRenderType(int rtype) override { }
+    virtual BOOL  GetLockImageAspRatio() override { return FALSE; }
+    virtual void  SetLockImageAspRatio(BOOL on) override { }
+    virtual float GetImageAspRatio() override { return 0; }
+    virtual void  SetImageAspRatio(float on) override { }
+    virtual BOOL  GetLockPixelAspRatio() override { return FALSE; }
+    virtual void  SetLockPixelAspRatio(BOOL on) override { }
+    virtual float GetPixelAspRatio() override { return 0; }
+    virtual void  SetPixelAspRatio(float on) override { }
+
+    virtual void SetViewportGridVisible(int index, BOOL state) override { }
+    virtual BOOL GetViewportGridVisible(int index) override { return FALSE; }
+
+    virtual void ViewportInvalidate(int index) override { }
+    virtual void ViewportInvalidateBkgImage(int index) override { }
+    virtual void InvalidateAllViewportRects() override { }
+
+    virtual void RedrawViewportsNow(TimeValue t, DWORD vpFlags = VP_DONT_SIMPLIFY) override { }
+    virtual void RedrawViewportsLater(TimeValue t, DWORD vpFlags = VP_DONT_SIMPLIFY) override { }
+    virtual void SetActiveViewportRenderLevel(int level) override { }
+    virtual int  GetActiveViewportRenderLevel() override { return 0; }
+    virtual void SetActiveViewportShowEdgeFaces(BOOL show) override { }
+    virtual BOOL GetActiveViewportShowEdgeFaces() override { return FALSE; }
+    virtual void SetActiveViewportTransparencyLevel(int level) override { }
+    virtual int  GetActiveViewportTransparencyLevel() override { return 0; }
+    virtual BOOL GetDualPlanes() override { return FALSE; }
+    virtual void SetDualPlanes(BOOL b) override { }
+    virtual void SetTestOnlyFrozen(int onOff) override { }
+    virtual void SetScaleMode(int mode) override { }
+    virtual void SetCenterMode(int mode) override { }
+    virtual BOOL InManipMode() override { return FALSE; }
+    virtual void StartManipulateMode() override { }
+    virtual void EndManipulateMode() override { }
+    virtual BOOL IsViewportCommandMode(CommandMode* m) override { return FALSE; }
+    virtual void ConvertFlagedNodesToXRefs(
+        const MaxSDK::AssetManagement::AssetUser& fname,
+        INode*                                    rootNode,
+        Tab<INode*>&                              nodes,
+        int                                       xFlags) override
+    {
+    }
+    virtual void XRefSceneSetIgnoreFlag(int index, DWORD f, BOOL onOff) override { }
+    virtual void UpdateSceneXRefState() override { }
+
+    virtual BOOL  GetSnapActive() override { return FALSE; }
+    virtual void  SetSnapActive(BOOL onOff) override { }
+    virtual int   GetSnapType() override { return 0; }
+    virtual void  SetSnapType(int type) override { }
+    virtual void  ToggleASnap() override { }
+    virtual int   ASnapStatus() override { return 0; }
+    virtual void  TogglePSnap() override { }
+    virtual int   PSnapStatus() override { return 0; }
+    virtual void  SetGridSpacing(float newVal) override { }
+    virtual void  SetGridMajorLines(float newVal) override { }
+    virtual float GetSnapAngle() override { return 0; }
+    virtual void  SetSnapAngle(float newVal) override { }
+    virtual float GetSnapPercent() override { return 0; }
+    virtual void  SetSnapPercent(float newVal) override { }
+
+    virtual void SetNodeAttribute(INodeTab& nodes, int whatAttrib, int onOff) override { }
+    virtual void SetNodeAttribute(INode* node, int whatAttrib, int onOff) override { }
+    virtual void SetExpertMode(int onOff) override { }
+    virtual int  GetExpertMode() override { return 0; }
+    virtual void LoadCUIConfig(const MCHAR* fileName) override { }
+    virtual void WriteCUIConfig() override { }
+    virtual void SaveCUIAs() override { }
+    virtual void LoadCUI() override { }
+    virtual void RevertToBackupCUI() override { }
+    virtual void ResetToFactoryDefaultCUI() override { }
+
+    virtual int   GetDefaultImageListBaseIndex(SClass_ID sid, Class_ID cid) override { return 0; }
+    virtual MSTR* GetDefaultImageListFilePrefix(SClass_ID sid, Class_ID cid) override
+    {
+        return nullptr;
+    }
+
+    virtual float GetGridIntens() override { return 0; }
+    virtual void  SetGridIntens(float f) override { }
+    virtual BOOL  GetWhiteOrigin() override { return FALSE; }
+    virtual void  SetWhiteOrigin(BOOL b) override { }
+    virtual BOOL  GetUseGridColor() override { return FALSE; }
+    virtual void  SetUseGridColor(BOOL b) override { }
+    virtual void  UpdateColors(BOOL useGridColor, int gridIntensity, BOOL whiteOrigin) override { }
+#if MAX_RELEASE < 26900
+    virtual IMenu*     GetIMenu() override { return nullptr; }
+    virtual IMenuItem* GetIMenuItem() override { return nullptr; }
+#endif
+    virtual void RepaintTimeSlider() override { }
+
+    virtual MSTR GetTabPageTitle(ITabPage* page) override { return L""; }
+    virtual BOOL DoMaxFileSaveAsDlg(MSTR& fileName, BOOL setAsCurrent = TRUE) override
+    {
+        return FALSE;
+    }
+    virtual BOOL DoMaxFileOpenDlg(MSTR& fileName, MSTR* defDir, MSTR* defFile) override
+    {
+        return FALSE;
+    }
+    virtual BOOL DoMaxFileMergeDlg(MSTR& fileName, MSTR* defDir, MSTR* defFile) override
+    {
+        return FALSE;
+    }
+    virtual BOOL DoMaxFileXRefDlg(MSTR& fileName, MSTR* defDir, MSTR* defFile) override
+    {
+        return FALSE;
+    }
+    virtual void    StartAnimPlayback2(int selOnly) override { }
+    virtual BOOL    IsValidModForSelection(ClassEntry* ce) override { return FALSE; }
+    virtual BOOL    IsValidModifier(INode& node, Modifier& mod) override { return FALSE; }
+    virtual ResCode AddModifier(INode& node, Modifier& mod, int beforeIdx = 0) override
+    {
+        return kRES_SUCCESS;
+    }
+    virtual ResCode DeleteModifier(INode& node, Modifier& mod) override { return kRES_SUCCESS; }
+    virtual ResCode DeleteModifier(INode& node, int modIdx) override { return kRES_SUCCESS; }
+    virtual IDerivedObject*
+    FindModifier(INode& node, Modifier& mod, int& modStackIdx, int& derivedObjIdx) override
+    {
+        return nullptr;
+    }
+    virtual IDerivedObject* FindModifier(INode& node, int modIdx, int& idx, Modifier*& mod) override
+    {
+        return nullptr;
+    }
+    virtual IDerivedObject*
+    FindModifier(INode& node, Modifier& mod, ModContext& mc, int& modStackIdx, int& dobjidx)
+        override
+    {
+        return nullptr;
+    }
+
+    virtual ResCode DoDeleteModifier(INode& node, IDerivedObject& dobj, int idx) override
+    {
+        return kRES_SUCCESS;
+    }
+    virtual Object* GetReplaceableObjRef(INode& node) override { return nullptr; }
+    virtual void    OpenEnvEffectsDialog() override { }
+    virtual void    CloseEnvEffectsDialog() override { }
+    virtual BOOL    EnvEffectsDialogOpen() override { return FALSE; }
+#if MAX_RELEASE >= 25900
+    virtual void SetRendFormatToCustom() override { }
+    virtual void FileSaveMatLib(
+        HWND         hWnd,
+        MtlBaseLib*  lib,
+        const MCHAR* seedName = nullptr,
+        MSTR*        savedFileName = nullptr) override
+    {
+    }
+
+    virtual void GetSaveMatLibFilterList(FilterList& filterList) override { }
+
+    virtual int GetSaveAsVersionFromOFN(const OPENFILENAME& ofn) override { return 0; }
+
+    virtual bool SaveMaterialLib(const MCHAR* name, MtlBaseLib* lib, int saveAsVersion) override
+    {
+        return true;
+    }
+
+    virtual bool IsValidSaveAsVersion(int saveAsVersion) override { return true; }
+
+    void EnableViewportStatisticsRefresh(bool enable) override { }
+
+    void RefreshViewportStatistics() override { }
+#if MAX_RELEASE >= 26900
+    void EnableViewportStatistics(bool enable) { }
+
+    void GlobalScaleTime(
+        Interval oldSegment,
+        Interval newSegment,
+        BOOL     modifyTimeline,
+        BOOL     scaleToWholeFrames)
+    {
+    }
+
+    virtual BOOL IsSceneNode(INode* node) override { return FALSE; }
+#endif
+#endif
+
+#if MAX_RELEASE >= 27900
+    virtual bool GetViewportFromScreenCoord(const POINT&, int&, int&, int&, POINT&, HWND&, INode**)
+        const override
+    {
+        return false;
+    }
+
+    virtual void DoUICustomization(CUIDialogPage pageId) override { }
+#else
+    virtual void DoUICustomization(int startPage) override { }
+#endif
+};
diff --git a/src/Tests/Unit/Mocks/MockDllDir.h b/src/Tests/Unit/Mocks/MockDllDir.h
new file mode 100644
index 0000000..111ee51
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockDllDir.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "DllDirInternal.h"
+
+/**
+ * \brief Mock for 3ds Max's DllDir interface.
+ */
+class MockDllDirInternal : public DllDirInternal
+{
+public:
+    /**
+     * The following methods are used by the MockDllDirInternal in order to
+     * control the behavior of the Interface as it is passed to tests.
+     */
+    MockDllDirInternal() { }
+
+    ~MockDllDirInternal() { }
+};
diff --git a/src/Tests/Unit/Mocks/MockFPInterface.h b/src/Tests/Unit/Mocks/MockFPInterface.h
new file mode 100644
index 0000000..a7b084d
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockFPInterface.h
@@ -0,0 +1,77 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <ifnpub.h>
+#include <memory>
+
+/**
+ * \brief Mock object for 3ds Max's FPInterface interface.
+ * \remarks Mock behaviors should be supported by Google Mock (in conjunction
+ * with Google Test), but as of this writing the version of the library
+ * delivered through Artifactory contains an defect which prevents compilation
+ * of Mock objects. Given that no other 3ds Max project use the Google Mocks as
+ * part of their test setup, the Baking to Texture tool is currently the only
+ * project affected by this. Given the limited resource available, updating the
+ * Google Mock library (in parallel with the Google Test library) constitutes
+ * an overhead that the Baking to Texture team cannot afford at this time.
+ * \remarks To reproduce this defect:
+ *  * Create a traditional Google Mock class in the test project.
+ *  * Link against "gmock_main" or "gmock_maind".
+ *  * Add the "TEST_LINKED_AS_SHARED_LIBRARY" compilation flag to the project.
+ *  * Build the test project.
+ *  * Check compilation warnings.
+ */
+class MockFPInterface : public FPInterface
+{
+public:
+    std::unique_ptr<FPInterfaceDesc> mockDesc = std::make_unique<FPInterfaceDesc>();
+    MockFPInterface() { mockDesc->ID = defaultInterfaceID; }
+    FPInterfaceDesc* GetDesc() { return mockDesc.get(); }
+
+public:
+    /**
+     * The following members inherited from the FPInterface interface are not implemented.
+     * Their return values should not be considered, and can cause undefined
+     * side-effects.
+     */
+    FPStatus Invoke(FunctionID /*fid*/, TimeValue /*t*/ = 0, FPParams* /*params*/ = NULL)
+    {
+        return 0;
+    }
+    FPStatus Invoke(FunctionID /*fid*/, FPParams* /*params*/ = NULL) { return 0; }
+    FPStatus
+    Invoke(FunctionID /*fid*/, TimeValue /*t*/, FPValue& /*result*/, FPParams* /*params*/ = NULL)
+    {
+        return 0;
+    }
+    FPStatus Invoke(FunctionID /*fid*/, FPValue& /*result*/, FPParams* /*params*/ = NULL)
+    {
+        return 0;
+    }
+    FunctionID   FindFn(const MCHAR* /*name*/) { return 0; }
+    BOOL         IsEnabled(FunctionID /*actionID*/) { return FALSE; }
+    BOOL         IsChecked(FunctionID /*actionID*/) { return FALSE; }
+    BOOL         IsVisible(FunctionID /*actionID*/) { return FALSE; }
+    FunctionID   GetIsEnabled(FunctionID /*actionID*/) { return 0; }
+    FunctionID   GetIsChecked(FunctionID /*actionID*/) { return 0; }
+    FunctionID   GetIsVisible(FunctionID /*actionID*/) { return 0; }
+    ActionTable* GetActionTable() { return NULL; }
+    void         EnableActions(BOOL /*onOff*/) { }
+
+protected:
+    Interface_ID defaultInterfaceID = Interface_ID(0x1337, 0x0000);
+};
\ No newline at end of file
diff --git a/src/Tests/Unit/Mocks/MockINode.h b/src/Tests/Unit/Mocks/MockINode.h
new file mode 100644
index 0000000..c89a2b6
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockINode.h
@@ -0,0 +1,291 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MockObject.h"
+
+#include <INode.h>
+#include <control.h>
+#include <memory>
+#include <object.h>
+
+/**
+ * \brief Mock object for 3ds Max's INode interface.
+ * \remarks Mock behaviors should be supported by Google Mock (in conjunction
+ * with Google Test), but as of this writing the version of the library
+ * delivered through Artifactory contains an defect which prevents compilation
+ * of Mock objects. Given that no other 3ds Max project use the Google Mocks as
+ * part of their test setup, the Baking to Texture tool is currently the only
+ * project affected by this. Given the limited resource available, updating the
+ * Google Mock library (in parallel with the Google Test library) constitutes
+ * an overhead that the Baking to Texture team cannot afford at this time.
+ * \remarks To reproduce this defect:
+ *  * Create a traditional Google Mock class in the test project.
+ *  * Link against "gmock_main" or "gmock_maind".
+ *  * Add the "TEST_LINKED_AS_SHARED_LIBRARY" compilation flag to the project.
+ *  * Build the test project.
+ *  * Check compilation warnings.
+ */
+class MockINode : public INode
+{
+protected:
+    Mtl*                         material { nullptr };
+    std::unique_ptr<Object>      object { new MockObject() };
+    std::unique_ptr<ObjectState> objectState { new ObjectState(object.get()) };
+
+public:
+    /**
+     * The following members inherited from the INode interface can be used in
+     * tests to modify the state and behavior of the Mock.
+     */
+
+    const MCHAR* GetName() override { return name; }
+    void         SetName(const MCHAR* s) override { name = s; }
+    Mtl*         GetMtl() override { return material; }
+
+    void SetMtl(Mtl* newMaterial) override { material = newMaterial; }
+
+    Object* GetObjectRef() override { return object.get(); }
+    void    SetObjectRef(Object* o) override
+    {
+        object.reset(o);
+        objectState.reset(new ObjectState(o));
+    }
+
+#pragma warning(push)
+#pragma warning(disable : 4172)
+    const ObjectState& EvalWorldState(TimeValue /*time*/, BOOL /*evalHidden*/ = TRUE)
+    {
+        return *objectState.get();
+    }
+#pragma warning(pop)
+
+public:
+    /**
+     * The following members inherited from the INode interface are not implemented.
+     * Their return values should not be considered, and can cause undefined
+     * side-effects.
+     */
+    Matrix3 GetNodeTM(TimeValue /*t*/, Interval* /*valid*/ = NULL) { return Matrix3(); }
+    void    SetNodeTM(TimeValue /*t*/, Matrix3& /*m*/) { }
+    void    InvalidateTreeTM() { }
+    void    InvalidateTM() { }
+    void    InvalidateWS() { }
+    void    InvalidateRect(TimeValue /*t*/, bool /*oldRect*/) { }
+    Matrix3 GetObjectTM(TimeValue /*time*/, Interval* /*valid*/ = NULL) { return Matrix3(); }
+    Matrix3 GetObjTMBeforeWSM(TimeValue /*time*/, Interval* /*valid*/ = NULL) { return Matrix3(); }
+    Matrix3 GetObjTMAfterWSM(TimeValue /*time*/, Interval* /*valid*/ = NULL) { return Matrix3(); }
+    INode*  GetParentNode() { return nullptr; }
+    void    AttachChild(INode* /*n*/, int /*keepTM*/ = 1) { }
+    void    Detach(TimeValue /*t*/, int /*keepTM*/ = 1) { }
+    int     NumberOfChildren() { return 0; }
+    INode*  GetChildNode(int /*i*/) { return nullptr; }
+    void    Delete(TimeValue /*t*/, int /*keepChildPosition*/) { }
+    void    Hide(BOOL /*onOff*/) { }
+    int     IsHidden(DWORD /*hflags*/ = 0, BOOL /*forRenderer*/ = FALSE) { return 0; }
+    int     IsNodeHidden(BOOL /*forRenderer*/ = FALSE) { return 0; }
+    void    Freeze(BOOL /*onOff*/) { }
+    int     IsFrozen() { return 0; }
+    void    SetShowFrozenWithMtl(BOOL /*onOff*/) { }
+    int     ShowFrozenWithMtl() { return 0; }
+    void    XRayMtl(BOOL /*onOff*/) { }
+    int     HasXRayMtl() { return 0; }
+    void    IgnoreExtents(BOOL /*onOff*/) { }
+    int     GetIgnoreExtents() { return 0; }
+    void    BoxMode(BOOL /*onOff*/) { }
+    int     GetBoxMode() { return 0; }
+    void    AllEdges(BOOL /*onOff*/) { }
+    int     GetAllEdges() { return 0; }
+    void    VertTicks(int /*onOff*/) { }
+    int     GetVertTicks() { return 0; }
+    void    BackCull(BOOL /*onOff*/) { }
+    int     GetBackCull() { return 0; }
+    void    SetCastShadows(BOOL /*onOff*/) { }
+    int     CastShadows() { return 0; }
+    void    SetRcvShadows(BOOL /*onOff*/) { }
+    int     RcvShadows() { return 0; }
+    void    SetGenerateCaustics(BOOL /*onOff*/) { }
+    int     GenerateCaustics() { return 0; }
+    void    SetRcvCaustics(BOOL /*onOff*/) { }
+    int     RcvCaustics() { return 0; }
+    void    SetApplyAtmospherics(BOOL /*onOff*/) { }
+    int     ApplyAtmospherics() { return 0; }
+    void    SetGenerateGlobalIllum(BOOL /*onOff*/) { }
+    int     GenerateGlobalIllum() { return 0; }
+    void    SetRcvGlobalIllum(BOOL /*onOff*/) { }
+    int     RcvGlobalIllum() { return 0; }
+
+    void SetMotBlur(BOOL /*onOff*/) { }
+    int  MotBlur() { return 0; }
+
+    float    GetImageBlurMultiplier(TimeValue /*t*/) { return 0.0f; }
+    void     SetImageBlurMultiplier(TimeValue /*t*/, float /*m*/) { };
+    void     SetImageBlurMultController(Control* /*cont*/) { }
+    Control* GetImageBlurMultController() { return nullptr; }
+
+    BOOL     GetMotBlurOnOff(TimeValue /*t*/) { return FALSE; }
+    void     SetMotBlurOnOff(TimeValue /*t*/, BOOL /*m*/) { }
+    Control* GetMotBlurOnOffController() { return nullptr; }
+    void     SetMotBlurOnOffController(Control* /*cont*/) { }
+
+    void SetRenderable(BOOL /*onOff*/) { }
+    int  Renderable() { return 0; }
+
+    void SetPrimaryVisibility(bool /*onOff*/) override { }
+    bool GetPrimaryVisibility() const override { return false; }
+    void SetSecondaryVisibility(bool /*onOff*/) override { }
+    bool GetSecondaryVisibility() const override { return false; }
+
+    void     ShowBone(int /*boneVis*/) { }
+    void     BoneAsLine(int /*onOff*/) { }
+    BOOL     IsBoneShowing() { return FALSE; }
+    BOOL     IsBoneOnly() { return FALSE; }
+    DWORD    GetWireColor() { return 0; }
+    void     SetWireColor(DWORD /*newcol*/) { }
+    int      IsRootNode() { return 0; }
+    int      Selected() { return 0; }
+    int      Dependent() { return 0; }
+    int      IsTarget() { return 0; }
+    void     SetIsTarget(BOOL /*b*/) { }
+    BOOL     GetTransformLock(int /*type*/, int /*axis*/) { return FALSE; }
+    void     SetTransformLock(int /*type*/, int /*axis*/, BOOL /*onOff*/) { }
+    INode*   GetTarget() { return nullptr; }
+    INode*   GetLookatNode() { return nullptr; }
+    Matrix3  GetParentTM(TimeValue /*t*/) { return Matrix3(); }
+    int      GetTargetTM(TimeValue /*t*/, Matrix3& /*m*/) { return 0; }
+    Object*  GetObjOrWSMRef() { return nullptr; }
+    Control* GetTMController() { return nullptr; }
+    BOOL     SetTMController(Control* /*m3cont*/) { return FALSE; }
+    Control* GetVisController() { return nullptr; }
+    void     SetVisController(Control* /*cont*/) { }
+    float    GetVisibility(TimeValue /*t*/, Interval* /*valid*/ = NULL) { return 0.0f; }
+    void     SetVisibility(TimeValue /*t*/, float /*vis*/) { }
+    float    GetLocalVisibility(TimeValue /*t*/, Interval* /*valid*/) { return 0.0f; }
+    BOOL     GetInheritVisibility() { return FALSE; }
+    void     SetInheritVisibility(BOOL /*onOff*/) { }
+
+    virtual void SetRenderOccluded(BOOL /*onOff*/) { }
+    virtual BOOL GetRenderOccluded() { return FALSE; }
+
+    Material* Mtls() { return nullptr; }
+    int       NumMtls() { return 0; }
+
+    RenderData* GetRenderData() { return nullptr; }
+    void        SetRenderData(RenderData* /*rd*/) { }
+
+    void     SetObjOffsetPos(Point3 /*p*/) { }
+    Point3   GetObjOffsetPos() { return nullptr; }
+    void     SetObjOffsetRot(Quat /*q*/) { }
+    Quat     GetObjOffsetRot() { return nullptr; }
+    void     FlagForeground(TimeValue /*t*/, BOOL /*notify*/ = TRUE) { }
+    int      IsActiveGrid() { return 0; }
+    void     SetNodeLong(LONG_PTR /*l*/) { }
+    LONG_PTR GetNodeLong() { return 0; }
+
+    void  GetUserPropBuffer(MSTR& /*buf*/) { }
+    void  SetUserPropBuffer(const MSTR& /*buf*/) { }
+    BOOL  GetUserPropString(const MSTR& /*key*/, MSTR& /*string*/) { return FALSE; }
+    BOOL  GetUserPropInt(const MSTR& /*key*/, int& /*val*/) { return FALSE; }
+    BOOL  GetUserPropFloat(const MSTR& /*key*/, float& /*val*/) { return FALSE; }
+    BOOL  GetUserPropBool(const MSTR& /*key*/, BOOL& /*b*/) { return FALSE; }
+    void  SetUserPropString(const MSTR& /*key*/, const MSTR& /*string*/) { }
+    void  SetUserPropInt(const MSTR& /*key*/, int /*val*/) { }
+    void  SetUserPropFloat(const MSTR& /*key*/, float /*val*/) { }
+    void  SetUserPropBool(const MSTR& /*key*/, BOOL /*b*/) { }
+    BOOL  UserPropExists(const MSTR& /*key*/) { return FALSE; }
+    ULONG GetGBufID() { return 0; }
+    void  SetGBufID(ULONG /*id*/) { }
+
+    UWORD GetRenderID() { return 0; }
+    void  SetRenderID(UWORD /*id*/) { }
+
+    void       SetObjOffsetScale(ScaleValue /*sv*/) { }
+    ScaleValue GetObjOffsetScale() { return ScaleValue {}; }
+
+    void CenterPivot(TimeValue /*t*/, BOOL /*moveObject*/) { }
+    void AlignPivot(TimeValue /*t*/, BOOL /*moveObject*/) { }
+    void WorldAlignPivot(TimeValue /*t*/, BOOL /*moveObject*/) { }
+    void AlignToParent(TimeValue /*t*/) { }
+    void AlignToWorld(TimeValue /*t*/) { }
+    void ResetTransform(TimeValue /*t*/, BOOL /*scaleOnly*/) { }
+    void ResetPivot(TimeValue /*t*/) { }
+    bool MayResetTransform() { return false; }
+
+    void Move(
+        TimeValue /*t*/,
+        const Matrix3& /*tmAxis*/,
+        const Point3& /*val*/,
+        BOOL /*localOrigin*/ = FALSE,
+        BOOL /*affectKids*/ = TRUE,
+        int /*pivMode*/ = PIV_NONE,
+        BOOL /*ignoreLocks*/ = FALSE)
+    {
+    }
+    void Rotate(
+        TimeValue /*t*/,
+        const Matrix3& /*tmAxis*/,
+        const AngAxis& /*val*/,
+        BOOL /*localOrigin*/ = FALSE,
+        BOOL /*affectKids*/ = TRUE,
+        int /*pivMode*/ = PIV_NONE,
+        BOOL /*ignoreLocks*/ = FALSE)
+    {
+    }
+    void Rotate(
+        TimeValue /*t*/,
+        const Matrix3& /*tmAxis*/,
+        const Quat& /*val*/,
+        BOOL /*localOrigin*/ = FALSE,
+        BOOL /*affectKids*/ = TRUE,
+        int /*pivMode*/ = PIV_NONE,
+        BOOL /*ignoreLocks*/ = FALSE)
+    {
+    }
+    void Scale(
+        TimeValue /*t*/,
+        const Matrix3& /*tmAxis*/,
+        const Point3& /*val*/,
+        BOOL /*localOrigin*/ = FALSE,
+        BOOL /*affectKids*/ = TRUE,
+        int /*pivMode*/ = PIV_NONE,
+        BOOL /*ignoreLocks*/ = FALSE)
+    {
+    }
+
+    BOOL IsGroupMember() { return FALSE; }
+    BOOL IsGroupHead() { return FALSE; }
+    BOOL IsOpenGroupMember() { return FALSE; }
+    BOOL IsOpenGroupHead() { return FALSE; }
+
+    void SetGroupMember(BOOL /*b*/) { }
+    void SetGroupHead(BOOL /*b*/) { }
+    void SetGroupMemberOpen(BOOL /*b*/) { }
+    void SetGroupHeadOpen(BOOL /*b*/) { }
+
+    RefResult NotifyRefChanged(
+        const Interval& /*changeInt*/,
+        RefTargetHandle /*hTarget*/,
+        PartID& /*partID*/,
+        RefMessage /*message*/,
+        BOOL /*propagate*/)
+    {
+        return REF_FAIL;
+    }
+
+protected:
+    /// Node name to use for the Mock:
+    MSTR name;
+};
diff --git a/src/Tests/Unit/Mocks/MockLog.h b/src/Tests/Unit/Mocks/MockLog.h
new file mode 100644
index 0000000..d9af6b7
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockLog.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <log.h>
+
+class MockLogSys : public LogSys
+{
+public:
+    virtual void         SetQuietMode(bool quiet) { }
+    virtual bool         GetQuietMode() { return true; }
+    virtual void         SetEnabledMode(bool enabled) { }
+    virtual bool         GetEnabledMode() { return false; }
+    virtual void         SetSessionLogName(const MCHAR* logName) { }
+    virtual const MCHAR* GetSessionLogName() { return L""; }
+    virtual const MCHAR* NetLogName() { return L""; }
+
+    virtual void LogEntry(DWORD type, BOOL dialogue, const MCHAR* title, const MCHAR* format, ...)
+    {
+    }
+    virtual void SaveState(void) { }
+    virtual void LoadState(void) { }
+
+#if MAX_RELEASE >= 26900
+    void
+    LogEntry(DWORD type, BOOL dialogue, const MSTR& title, const wchar_t* format, ...) override { };
+    void LogEntry(DWORD type, BOOL dialogue, const MSTR& title, MSTR format, ...) override { };
+#endif
+};
\ No newline at end of file
diff --git a/src/Tests/Unit/Mocks/MockModifier.h b/src/Tests/Unit/Mocks/MockModifier.h
new file mode 100644
index 0000000..3c6b372
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockModifier.h
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <maxtypes.h>
+#include <object.h>
+
+/**
+ * \brief Mock for 3ds Max's Modifier interface.
+ */
+class MockModifier : public Modifier
+{
+public:
+    /**
+     * The following members inherited from the Modifier interface are not implemented.
+     * Their return values should not be considered, and can cause undefined
+     * side-effects.
+     */
+    ChannelMask ChannelsUsed() override { return 0; }
+    ChannelMask ChannelsChanged() override { return 0; }
+    Class_ID    InputType() override { return Class_ID(0, 0); }
+    void
+    ModifyObject(TimeValue /*t*/, ModContext& /*mc*/, ObjectState* /*os*/, INode* /*node*/) override
+    {
+        return;
+    }
+    CreateMouseCallBack* GetCreateMouseCallBack() override { return nullptr; }
+    RefResult            NotifyRefChanged(
+                   const Interval& /*changeInt*/,
+                   RefTargetHandle /*hTarget*/,
+                   PartID& /*partID*/,
+                   RefMessage /*message*/,
+                   BOOL /*propagate*/) override
+    {
+        return REF_SUCCEED;
+    }
+};
diff --git a/src/Tests/Unit/Mocks/MockObject.h b/src/Tests/Unit/Mocks/MockObject.h
new file mode 100644
index 0000000..f73df1d
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockObject.h
@@ -0,0 +1,53 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <object.h>
+
+/**
+ * \brief Mock object for 3ds Max's Object interface.
+ */
+class MockObject : public Object
+{
+public:
+    /**
+     * The following members inherited from the Object interface can be used in
+     * tests to modify the state and behavior of the Mock.
+     */
+
+    ObjectState Eval(TimeValue /*t*/) { return ObjectState(this); }
+    SClass_ID   SuperClassID() { return GEOMOBJECT_CLASS_ID; }
+
+public:
+    /**
+     * The following members inherited from the INode interface are not implemented.
+     * Their return values should not be considered, and can cause undefined
+     * side-effects.
+     */
+
+    int                  IsRenderable() { return 0; }
+    void                 InitNodeName(MSTR& /*s*/) { }
+    CreateMouseCallBack* GetCreateMouseCallBack() { return nullptr; }
+    RefResult            NotifyRefChanged(
+                   const Interval& /*changeInt*/,
+                   RefTargetHandle /*hTarget*/,
+                   PartID& /*partID*/,
+                   RefMessage /*message*/,
+                   BOOL /*propagate*/)
+    {
+        return REF_FAIL;
+    }
+};
diff --git a/src/Tests/Unit/Mocks/MockPathConfigMgr.h b/src/Tests/Unit/Mocks/MockPathConfigMgr.h
new file mode 100644
index 0000000..0c2c7d8
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockPathConfigMgr.h
@@ -0,0 +1,169 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <IPathConfigMgr.h>
+
+/**
+ * \brief Mock object for 3ds Max's IPathConfigMgr interface.
+ */
+class MockPathConfigMgr : public IPathConfigMgr
+{
+public:
+    /**
+     * The following methods are used by the MockCoreInterface in order to
+     * control the behavior of the Interface as it is passed to tests.
+     */
+
+    const MCHAR* GetDir(int /*which*/) const override { return _T("."); }
+
+public:
+    /**
+     * The following members inherited from the INode interface are not implemented.
+     * Their return values should not be considered, and can cause undefined
+     * side-effects.
+     */
+
+    bool         LoadPathConfiguration(const MCHAR* /*filename*/) override { return false; }
+    bool         MergePathConfiguration(const MCHAR* /*filename*/) override { return false; }
+    bool         SavePathConfiguration(const MCHAR* /*filename*/) override { return false; }
+    bool         SetDir(int /*which*/, const MCHAR* /*dir*/) override { return false; }
+    int          GetPlugInEntryCount() const override { return 0; }
+    const MCHAR* GetPlugInDesc(int /*i*/) const override { return nullptr; }
+    const MCHAR* GetPlugInDir(int /*i*/) const override { return nullptr; }
+    int          GetAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return 0;
+    }
+    const MCHAR*
+    GetAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return nullptr;
+    }
+    bool
+    AddAssetDir(const MCHAR* /*dir*/, MaxSDK::AssetManagement::AssetType /*assetType*/) override
+    {
+        return false;
+    }
+    bool AddAssetDir(
+        const MCHAR* /*dir*/,
+        MaxSDK::AssetManagement::AssetType /*assetType*/,
+        int /*update*/) override
+    {
+        return false;
+    }
+    bool DeleteAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/, int /*update*/)
+        override
+    {
+        return false;
+    }
+    bool AddSessionAssetDir(
+        const MCHAR* /*dir*/,
+        MaxSDK::AssetManagement::AssetType /*assetType*/,
+        int /*update*/) override
+    {
+        return false;
+    }
+    int GetSessionAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return 0;
+    }
+    const MCHAR*
+    GetSessionAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return nullptr;
+    }
+    bool DeleteSessionAssetDir(
+        int /*i*/,
+        MaxSDK::AssetManagement::AssetType /*assetType*/,
+        int /*update*/) override
+    {
+        return false;
+    }
+    int GetCurAssetDirCount(MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return 0;
+    }
+    const MCHAR*
+    GetCurAssetDir(int /*i*/, MaxSDK::AssetManagement::AssetType /*assetType*/) const override
+    {
+        return nullptr;
+    }
+    void UpdateAssetSection(MaxSDK::AssetManagement::AssetType /*assetType*/) override { }
+    MSTR GetMAXIniFile() const override { return nullptr; }
+    bool GetResolveUNC() const override { return false; }
+    void SetResolveUNC(bool /*aFlag*/) override { }
+    bool GetResolveToRelative() const override { return false; }
+    void SetResolveToRelative(bool /*aFlag*/) override { }
+    void AppendSlash(MCHAR* /*path*/) const override { }
+    void RemoveSlash(MCHAR* /*path*/) const override { }
+    void AppendSlash(MSTR& /*path*/) const override { }
+    void RemoveSlash(MSTR& /*path*/) const override { }
+    bool IsUsingProfileDirectories() const override { return false; }
+    bool IsUsingRoamingProfiles() const override { return false; }
+    const MaxSDK::Util::Path& GetCurrentProjectFolder() const override
+    {
+        static MaxSDK::Util::Path path;
+        return path;
+    }
+    bool SetCurrentProjectFolder(const MaxSDK::Util::Path& /*aDirectory*/) override
+    {
+        return false;
+    }
+    bool SetSessionProjectFolder(const MaxSDK::Util::Path& /*aDirectory*/) override
+    {
+        return false;
+    }
+    bool DoProjectSetupSteps() const override { return false; }
+    bool DoProjectSetupStepsUsingDirectory(const MaxSDK::Util::Path& /*aDirectory*/) const override
+    {
+        return false;
+    }
+    bool IsProjectFolder(const MaxSDK::Util::Path& /*aDirectoryToCheck*/) const override
+    {
+        return false;
+    }
+    MaxSDK::Util::Path
+    GetProjectFolderPath(const MaxSDK::Util::Path& /*aProjectRoot*/) const override
+    {
+        return nullptr;
+    }
+    MaxSDK::Util::Path GetCurrentProjectFolderPath() const override { return nullptr; }
+    void MakePathRelativeToProjectFolder(MaxSDK::Util::Path& /*aPath*/) const override { }
+    bool CreateDirectoryHierarchy(const MaxSDK::Util::Path& /*aPath*/) const override
+    {
+        return false;
+    }
+    bool DoesFileExist(const MaxSDK::Util::Path& /*aPath*/) const override { return false; }
+    void NormalizePathAccordingToSettings(MaxSDK::Util::Path& /*aPath*/) const override { }
+    void RecordInputAsset(
+        const MaxSDK::AssetManagement::AssetUser& /*originalPath*/,
+        AssetEnumCallback& /*nameEnum*/,
+        DWORD /*vflags*/) const override
+    {
+    }
+    void RecordOutputAsset(
+        const MaxSDK::AssetManagement::AssetUser& /*originalAsset*/,
+        AssetEnumCallback& /*nameEnum*/,
+        DWORD /*vflags*/) const override
+    {
+    }
+    int          GetProjectSubDirectoryCount() const override { return 0; }
+    const MCHAR* GetProjectSubDirectory(int /*aIndex*/) const override { return nullptr; }
+    void         AddProjectDirectoryCreateFilter(int /*aID*/) override { }
+    void         RemoveAllProjectDirectoryCreateFilters() override { }
+    void         RemoveProjectDirectoryCreateFilter(int /*aID*/) override { }
+};
diff --git a/src/Tests/Unit/Mocks/MockRenderer.h b/src/Tests/Unit/Mocks/MockRenderer.h
new file mode 100644
index 0000000..00f71ed
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockRenderer.h
@@ -0,0 +1,120 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <Rendering/Renderer.h>
+
+class MockRenderer : public Renderer
+{
+protected:
+    /// This ClassID is associated to the renderer in the BTT tool
+    Class_ID RendererClassID {};
+
+public:
+    /**
+     * \brief Constructor.
+     * \param classID ID of the Mock Renderer.
+     */
+    explicit MockRenderer(const Class_ID& classID = Class_ID(0x00000000, 0x00000000))
+        : RendererClassID { classID }
+    {
+    }
+
+    Class_ID ClassID() override { return RendererClassID; }
+
+public:
+    /**
+     * The following members inherited from the Interface interface are not
+     * implemented. Their return values should not be considered, and can cause
+     * undefined side-effects.
+     */
+    int Open(
+        INode* /*scene*/,
+        INode* /*vnode*/,
+        ViewParams* /*viewPar*/,
+        RendParams& /*rp*/,
+        HWND /*hwnd*/,
+        DefaultLight* /*defaultLights*/ = NULL,
+        int /*numDefLights*/ = 0,
+        RendProgressCallback* /*prog*/ = NULL)
+    {
+        return 0;
+    }
+    int Render(
+        TimeValue /*t*/,
+        Bitmap* /*tobm*/,
+        FrameRendParams& /*frp*/,
+        HWND /*hwnd*/,
+        RendProgressCallback* /*prog*/ = NULL,
+        ViewParams* /*viewPar*/ = NULL)
+    {
+        return 0;
+    }
+    void Close(HWND /*hwnd*/, RendProgressCallback* /*prog*/ = NULL) { }
+    bool ApplyRenderEffects(TimeValue /*t*/, Bitmap* /*pBitmap*/, bool /*updateDisplay*/ = true)
+    {
+        return false;
+    }
+    RendParamDlg* CreateParamDialog(IRendParams* /*ir*/, BOOL /*prog*/ = FALSE) { return nullptr; }
+    void          ResetParams() { }
+    int           GetAAFilterSupport() { return 0; }
+    bool          SupportsTexureBaking() { return false; }
+    bool          SupportsCustomRenderPresets() { return false; }
+    int           RenderPresetsFileVersion() { return -1; }
+    BOOL          RenderPresetsIsCompatible(int /*version*/) { return false; }
+    const MCHAR*  RenderPresetsMapIndexToCategory(int /*catIndex*/) { return NULL; }
+    int           RenderPresetsMapCategoryToIndex(const MCHAR* /*category*/) { return 0; }
+    int  RenderPresetsPreSave(ITargetedIO* /*root*/, BitArray /*saveCategories*/) { return -1; }
+    int  RenderPresetsPostSave(ITargetedIO* /*root*/, BitArray /*loadCategories*/) { return -1; }
+    int  RenderPresetsPreLoad(ITargetedIO* /*root*/, BitArray /*saveCategories*/) { return -1; }
+    int  RenderPresetsPostLoad(ITargetedIO* /*root*/, BitArray /*loadCategories*/) { return -1; }
+    bool IsStopSupported() const { return false; }
+    void StopRendering() { }
+    enum class PauseSupport
+    {
+        None,
+        Full,
+        Legacy
+    };
+    Renderer::PauseSupport IsPauseSupported() const { return Renderer::PauseSupport::None; }
+    void                   PauseRendering() { }
+    void                   ResumeRendering() { }
+    enum Requirement
+    {
+        kRequirement_NoPauseSupport = 0,
+        kRequirement_NoVFB = 1,
+        kRequirement_DontSaveRenderOutput = 2,
+        kRequirement_Wants32bitFPOutput = 3,
+        kRequirement_WantsObjectSelection = 4,
+        kRequirement_NoGBufferForToneOpPreview = 5,
+        kRequirement_SupportsConcurrentRendering = 6
+    };
+    bool HasRequirement(Renderer::Requirement /*requirement*/) { return false; }
+    bool CompatibleWithAnyRenderElement() const { return false; }
+    bool CompatibleWithRenderElement(IRenderElement& /*pIRenderElement*/) const { return false; }
+    IInteractiveRender* GetIInteractiveRender() { return nullptr; }
+    void                GetVendorInformation(MSTR& /*info*/) const { }
+    void                GetPlatformInformation(MSTR& /*info*/) const { }
+    RefResult           NotifyRefChanged(
+                  const Interval& /*changeInt*/,
+                  RefTargetHandle /*hTarget*/,
+                  PartID& /*partID*/,
+                  RefMessage /*message*/,
+                  BOOL /*propagate*/)
+    {
+        return REF_FAIL;
+    }
+};
\ No newline at end of file
diff --git a/src/Tests/Unit/Mocks/MockStdMat.h b/src/Tests/Unit/Mocks/MockStdMat.h
new file mode 100644
index 0000000..b25c2a8
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockStdMat.h
@@ -0,0 +1,203 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <imtl.h>
+#include <map>
+#include <stdmat.h>
+class MockStdMat : public StdMat
+{
+protected:
+    // This ClassID is the same associated in the BTT Tool
+    Class_ID MaterialClassID = Class_ID(DMTL_CLASS_ID, 0x00000000);
+
+public:
+    void     SetMaterialID(Class_ID classID) { MaterialClassID = classID; }
+    Class_ID ClassID() { return MaterialClassID; }
+
+public:
+    /**
+     * The following members inherited from the Interface interface are not
+     * implemented. Their return values should not be considered, and can cause
+     * undefined side-effects.
+     */
+    void      SetDiffuse(Color /*c*/, TimeValue /*t*/) { }
+    void      SetSoften(BOOL /*onoff*/) { }
+    void      SetFaceMap(BOOL /*onoff*/) { }
+    void      SetTwoSided(BOOL /*onoff*/) { }
+    void      SetWire(BOOL /*onoff*/) { }
+    void      SetWireUnits(BOOL /*onoff*/) { }
+    void      SetFalloffOut(BOOL /*onoff*/) { }
+    void      SetTransparencyType(int /*type*/) { }
+    void      SetAmbient(Color /*c*/, TimeValue /*t*/) { }
+    void      SetSpecular(Color /*c*/, TimeValue /*t*/) { }
+    void      SetFilter(Color /*c*/, TimeValue /*t*/) { }
+    void      SetShininess(float /*v*/, TimeValue /*t*/) { }
+    void      SetShinStr(float /*v*/, TimeValue /*t*/) { }
+    void      SetSelfIllum(float /*v*/, TimeValue /*t*/) { }
+    void      SetOpacity(float /*v*/, TimeValue /*t*/) { }
+    void      SetOpacFalloff(float /*v*/, TimeValue /*t*/) { }
+    void      SetWireSize(float /*s*/, TimeValue /*t*/) { }
+    void      SetIOR(float /*v*/, TimeValue /*t*/) { }
+    void      LockAmbDiffTex(BOOL /*onOff*/) { }
+    void      SetSamplingOn(BOOL /*on*/) { }
+    void      SetShading(int /*s*/) { }
+    BOOL      GetSamplingOn() { return false; }
+    int       GetShading() { return 0; }
+    void      EnableMap(int /*id*/, BOOL /*onoff*/) { }
+    BOOL      MapEnabled(int /*id*/) { return false; }
+    void      SetTexmapAmt(int /*id*/, float /*amt*/, TimeValue /*t*/) { }
+    float     GetTexmapAmt(int /*id*/, TimeValue /*t*/) { return 0; }
+    BOOL      GetSoften() { return false; }
+    BOOL      GetFaceMap() { return false; }
+    BOOL      GetTwoSided() { return false; }
+    BOOL      GetWire() { return false; }
+    BOOL      GetWireUnits() { return false; }
+    BOOL      GetFalloffOut() { return false; }
+    int       GetTransparencyType() { return 0; }
+    Color     GetAmbient(TimeValue /*t*/) { return Color(); }
+    Color     GetDiffuse(TimeValue /*t*/) { return Color(); }
+    Color     GetSpecular(TimeValue /*t*/) { return Color(); }
+    Color     GetFilter(TimeValue /*t*/) { return Color(); }
+    float     GetShininess(TimeValue /*t*/) { return 0; }
+    float     GetShinStr(TimeValue /*t*/) { return 0; }
+    float     GetSelfIllum(TimeValue /*t*/) { return 0; }
+    float     GetOpacity(TimeValue /*t*/) { return 0; }
+    float     GetOpacFalloff(TimeValue /*t*/) { return 0; }
+    float     GetWireSize(TimeValue /*t*/) { return 0; }
+    float     GetIOR(TimeValue /*t*/) { return 0; }
+    BOOL      GetAmbDiffTexLock() { return false; }
+    Color     GetAmbient(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return Color(); }
+    Color     GetDiffuse(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return Color(); }
+    Color     GetSpecular(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return Color(); }
+    float     GetShininess(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return 0; }
+    float     GetShinStr(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return 0; }
+    float     GetXParency(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return 0; }
+    void      Shade(ShadeContext& /*sc*/) { }
+    void      Update(TimeValue /*t*/, Interval& /*valid*/) { }
+    void      Reset() { }
+    Interval  Validity(TimeValue /*t*/) { return Interval(); }
+    ParamDlg* CreateParamDlg(HWND /*hwMtlEdit*/, IMtlParams* /*imp*/) { return nullptr; }
+    RefResult NotifyRefChanged(
+        const Interval& /*changeInt*/,
+        RefTargetHandle /*hTarget*/,
+        PartID& /*partID*/,
+        RefMessage /*message*/,
+        BOOL /*propagate*/)
+    {
+        return REF_FAIL;
+    }
+    BOOL     SupportsShaders() { return TRUE; }
+    BOOL     KeyAtTimeByID(ParamID /*id*/, TimeValue /*t*/) { return false; }
+    int      GetMapState(int /*indx*/) { return 0; }
+    MSTR     GetMapName(int /*indx*/) { return L"a"; }
+    void     SyncADTexLock(BOOL /*lockOn*/) { }
+    BOOL     SwitchShader(Class_ID /*id*/) { return false; }
+    Shader*  GetShader() { return nullptr; }
+    BOOL     IsFaceted() { return false; }
+    void     SetFaceted(BOOL /*on*/) { }
+    long     StdIDToChannel(long /*id*/) { return 0; }
+    BOOL     SwitchSampler(Class_ID /*id*/) { return false; }
+    Sampler* GetPixelSampler(int /*mtlNum*/, BOOL /*backFace*/) { return nullptr; }
+    BOOL     GetSelfIllumColorOn(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) { return false; }
+    Color    GetSelfIllumColor(int /*mtlNum*/, BOOL /*backFace*/) { return Color(); }
+    Color    GetSelfIllumColor(TimeValue /*t*/) { return Color(); }
+    void     SetSelfIllumColorOn(BOOL /*on*/) { }
+    void     SetSelfIllumColor(Color /*c*/, TimeValue /*t*/) { }
+    float    GetReflectionDim(float /*diffIllumIntensity*/) { return 1.0f; }
+    Color    TranspColor(float /*opac*/, Color /*filt*/, Color /*diff*/) { return Color(); }
+    float    GetEffOpacity(ShadeContext& /*sc*/, float /*opac*/) { return 0; }
+};
+
+class MockMultiMtl : public MultiMtl
+{
+public:
+    /**
+     * The following members inherited from the Interface interface are not
+     * implemented. Their return values should not be considered, and can cause
+     * undefined side-effects.
+     */
+    Color    GetAmbient(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return Color(); }
+    Color    GetDiffuse(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return Color(); }
+    Color    GetSpecular(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return Color(); }
+    float    GetShininess(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return 0; }
+    float    GetShinStr(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return 0; }
+    float    GetXParency(int /*mtlNum*/ = 0, BOOL /*backFace*/ = FALSE) override { return 0; }
+    void     Shade(ShadeContext& /*sc*/) override { }
+    void     Update(TimeValue /*t*/, Interval& /*valid*/) override { }
+    void     Reset() override { }
+    Interval Validity(TimeValue /*t*/) override { return Interval(); }
+    ParamDlg* CreateParamDlg(HWND /*hwMtlEdit*/, IMtlParams* /*imp*/) override { return nullptr; }
+    RefResult NotifyRefChanged(
+        const Interval& /*changeInt*/,
+        RefTargetHandle /*hTarget*/,
+        PartID& /*partID*/,
+        RefMessage /*message*/,
+        BOOL /*propagate*/) override
+    {
+        return REF_FAIL;
+    }
+    void SetDiffuse(Color /*c*/, TimeValue /*t*/) override { }
+    void SetAmbient(Color /*c*/, TimeValue /*t*/) override { }
+    void SetSpecular(Color /*c*/, TimeValue /*t*/) override { }
+    void SetShininess(float /*v*/, TimeValue /*t*/) override { }
+
+    void SetNumSubMtls(int /*n*/) override { }
+
+#ifdef IS_MAX2024_OR_GREATER
+    void SetSubMtlAndName(int /*mtlid*/, Mtl* /*m*/, const MSTR& /*subMtlName*/) override { }
+#else
+    void SetSubMtlAndName(int /*mtlid*/, Mtl* /*m*/, MSTR& /*subMtlName*/) override { }
+#endif
+
+    void RemoveMtl(int /*mtlid*/) override { }
+
+public:
+    /**
+     * The following methods are used by the MockMultiMtl in order to
+     * control the behavior of the Interface as it is passed to tests.
+     */
+    Class_ID ClassID() override { return Class_ID(MULTI_CLASS_ID, 0x00000000); }
+
+    Mtl* GetSubMtl(int i) override
+    {
+        if (subMtls.find(i) != subMtls.end()) {
+            return subMtls[i];
+        }
+        return nullptr;
+    }
+
+    int NumSubMtls() override { return int(subMtls.size()); }
+
+    void AddMtl(ReferenceTarget* rt, int mtlid, const MCHAR* pName) override
+    {
+        subMtls[mtlid] = static_cast<Mtl*>(rt);
+        names[mtlid] = pName;
+    }
+
+    BOOL IsMultiMtl() override { return TRUE; }
+
+    void GetSubMtlName(int mtlid, MSTR& s) override { s = names[mtlid]; }
+
+private:
+    /// List of sub-materials
+    std::map<int, Mtl*> subMtls;
+
+    /// List of sub-materials names
+    std::map<int, MSTR> names;
+};
diff --git a/src/Tests/Unit/Mocks/MockViewExp.h b/src/Tests/Unit/Mocks/MockViewExp.h
new file mode 100644
index 0000000..41f66fb
--- /dev/null
+++ b/src/Tests/Unit/Mocks/MockViewExp.h
@@ -0,0 +1,143 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <control.h>
+#include <maxapi.h>
+#include <object.h>
+
+/**
+ * \brief Mock for 3ds Max's "Interface" interface.
+ */
+class MockViewExp : public ViewExp
+{
+protected:
+    /**
+     * The following properties are instantiated in order to return
+     * some data by reference by the ViewExp.
+     */
+
+    CtrlHitLog SomeCtrlHitLog;
+    HitLog     SomeHitLog;
+
+public:
+    /**
+     * The following members inherited from the ViewExp interface are not
+     * implemented. Their return values should not be considered, and can
+     * cause undefined side-effects.
+     */
+
+    int      GetViewID() override { return 0; }
+    ViewExp* ToPointer() override { return nullptr; }
+    bool     IsAlive() override { return false; }
+    Point3   GetPointOnCP(const IPoint2& /*ps*/) override { return nullptr; }
+    Point3   SnapPoint(
+          const IPoint2& /*in*/,
+          IPoint2& /*out*/,
+          Matrix3* /*plane2d*/ = NULL,
+          DWORD /*flags*/ = 0) override
+    {
+        return nullptr;
+    }
+    void SnapPreview(
+        const IPoint2& /*in*/,
+        IPoint2& /*out*/,
+        Matrix3* /*plane2d*/ = NULL,
+        DWORD /*flags*/ = 0) override
+    {
+    }
+    void GetGridDims(float* /*MinX*/, float* /*MaxX*/, float* /*MinY*/, float* /*MaxY*/) override {
+    }
+    float SnapLength(float /*in*/) override { return 0.0f; }
+    float GetCPDisp(
+        const Point3 /*base*/,
+        const Point3& /*dir*/,
+        const IPoint2& /*sp1*/,
+        const IPoint2& /*sp2*/,
+        BOOL /*snap*/ = FALSE) override
+    {
+        return 0.0f;
+    }
+    GraphicsWindow* getGW() override { return nullptr; }
+    int             IsWire() override { return 0; }
+    Rect            GetDammageRect() override { return Rect(); }
+    Point2          MapViewToScreen(const Point3& /*p*/) override { return nullptr; }
+#if MAX_RELEASE >= 25900
+    Point3 MapScreenToView(const IPoint2& /*sp*/, float /*depth*/) override { return nullptr; }
+#else
+    Point3 MapScreenToView(IPoint2& /*sp*/, float /*depth*/) override { return nullptr; }
+#endif
+    void   MapScreenToWorldRay(float /*sx*/, float /*sy*/, Ray& /*ray*/) override { }
+    BOOL   SetAffineTM(const Matrix3& /*m*/) override { return FALSE; }
+    void   GetAffineTM(Matrix3& /*tm*/) override { }
+    int    GetViewType() override { return 0; }
+    BOOL   IsPerspView() override { return FALSE; }
+    BOOL   IsCanvasNavigationMode() override { return FALSE; }
+    float  GetFOV() override { return 0.0f; }
+    float  GetFocalDist() override { return 0.0f; };
+    void   SetFocalDist(float /*fd*/) override { }
+    float  GetFPS() override { return 0.0f; }
+    float  GetScreenScaleFactor(const Point3 /*worldPoint*/) override { return 0.0f; }
+    float  GetVPWorldWidth(const Point3 /*wPoint*/) override { return 0.0f; }
+    Point3 MapCPToWorld(const Point3 /*cpPoint*/) override { return nullptr; }
+    float  NonScalingObjectSize() override { return 0.0f; }
+    void   GetConstructionTM(Matrix3& /*tm*/) override { }
+    void   SetGridSize(float /*size*/) override { }
+    float  GetGridSize() override { return 0.0f; }
+    BOOL   IsGridVisible() override { return FALSE; }
+    void   SetGridVisibility(BOOL /*bVisible*/) override { }
+    int    GetGridType() override { return 0; }
+    INode* GetViewCamera() override { return nullptr; }
+    void   SetViewCamera(INode* /*camNode*/) override { }
+    void   SetViewUser(BOOL /*persp*/) override { }
+    INode* GetViewSpot() override { return nullptr; }
+    void   SetViewSpot(INode* /*spotNode*/) override { }
+    void   ClearHitList() override { }
+    INode* GetClosestHit() override { return nullptr; }
+    INode* GetHit(int /*i*/) override { return nullptr; }
+    int    HitCount() override { return 0; }
+    void   LogHit(
+          INode* /*nr*/,
+          ModContext* /*mc*/,
+          DWORD /*dist*/,
+          ulong /*info*/,
+          HitData* /*hitdata*/ = NULL) override
+    {
+    }
+    HitLog& GetSubObjHitList() override { return SomeHitLog; }
+    void    ClearSubObjHitList() override { }
+    int     NumSubObjHits() override { return 0; }
+    void CtrlLogHit(INode* /*nr*/, DWORD /*dist*/, ulong /*info*/, DWORD /*infoExtra*/) override { }
+    CtrlHitLog& GetCtrlHitList() override { return SomeCtrlHitLog; }
+    void        ClearCtrlHitList() override { }
+    BOOL        setBkgImageDsp(BOOL /*onOff*/) override { return FALSE; }
+    int         getBkgImageDsp(void) override { return 0; }
+    void        setSFDisplay(int /*onOff*/) override { }
+    int         getSFDisplay(void) override { return 0; }
+    HWND        GetHWnd() override { return nullptr; }
+    BOOL        IsActive() override { return FALSE; }
+    BOOL        IsEnabled() override { return FALSE; }
+    void        SetSolidBackgroundColorMode(bool /*bSolidColor*/) override { }
+    bool        IsSolidBackgroundColorMode() override { return false; }
+    void        ResetBackgroundColorMode() override { }
+    void
+    TrackImplicitGrid(IPoint2 /*m*/, Matrix3* /*mat*/ = NULL, ULONG /*hitTestFlags*/ = 0) override
+    {
+    }
+    void CommitImplicitGrid(IPoint2 /*m*/, int /*mouseflags*/, Matrix3* /*mat*/ = NULL) override { }
+    void ReleaseImplicitGrid() override { }
+    void InvalidateRect(const Rect& /*rect*/) override { }
+};
diff --git a/src/Tests/Unit/TestUtils.cpp b/src/Tests/Unit/TestUtils.cpp
new file mode 100644
index 0000000..be3a83e
--- /dev/null
+++ b/src/Tests/Unit/TestUtils.cpp
@@ -0,0 +1,292 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TestUtils.h"
+
+#include <gtest/gtest.h>
+
+// MAXX-63363: VS2019 v142: <experimental/filesystem> is deprecated and superseded by the C++17
+// <filesystem> header
+#if _MSVC_LANG > 201402L
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#endif
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+
+#include <MNNormalSpec.h>
+#include <mnmesh.h>
+#include <numeric>
+
+namespace TestUtils {
+
+void CompareVertices(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh)
+{
+    pxr::VtVec3fArray vertices;
+    usdMesh.GetPointsAttr().Get(&vertices);
+    ASSERT_EQ(vertices.size(), maxMesh.VNum());
+    for (int i = 0; i < maxMesh.VNum(); i++) {
+        EXPECT_EQ(vertices[i][0], maxMesh.V(i)->p.x) << "Mismatch for X dimension on vertex #" << i;
+        EXPECT_EQ(vertices[i][1], maxMesh.V(i)->p.y) << "Mismatch for Y dimension on vertex #" << i;
+        EXPECT_EQ(vertices[i][2], maxMesh.V(i)->p.z) << "Mismatch for Z dimension on vertex #" << i;
+    }
+}
+
+void CompareFaceVertexCount(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh)
+{
+    pxr::VtIntArray faceVertexCount;
+    usdMesh.GetFaceVertexCountsAttr().Get(&faceVertexCount);
+    ASSERT_EQ(faceVertexCount.size(), maxMesh.FNum());
+    for (int i = 0; i < maxMesh.FNum(); i++) {
+        EXPECT_EQ(faceVertexCount[i], maxMesh.F(i)->deg)
+            << "Face vertex count mismatch on face #" << i;
+    }
+}
+
+void CompareFaceVertices(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh)
+{
+    pxr::VtIntArray faceVertices;
+    usdMesh.GetFaceVertexIndicesAttr().Get(&faceVertices);
+    const auto indexCount = std::accumulate<MNFace*, int, int(int, MNFace&)>(
+        maxMesh.f, maxMesh.f + maxMesh.FNum(), 0, [](int total, MNFace& face) {
+            return total + face.deg;
+        });
+    ASSERT_EQ(faceVertices.size(), indexCount);
+
+    std::vector<int> indices;
+
+    for (int i = 0; i < maxMesh.FNum(); i++) {
+        for (int j = 0; j < maxMesh.F(i)->deg; j++) {
+            EXPECT_EQ(faceVertices[i * 4 + j], maxMesh.F(i)->vtx[j])
+                << "Face vertex index mismatch on face #" << i << " vertex # " << j;
+            indices.push_back(maxMesh.F(i)->vtx[j]);
+        }
+    }
+}
+
+void CompareUsdAndMaxMeshes(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh)
+{
+    CompareFaceVertexCount(maxMesh, usdMesh);
+    CompareVertices(maxMesh, usdMesh);
+    CompareFaceVertices(maxMesh, usdMesh);
+}
+
+void CompareMaxMeshNormals(MNMesh& maxMesh1, MNMesh& maxMesh2)
+{
+    auto specNormals1 = maxMesh1.GetSpecifiedNormals();
+    auto specNormals2 = maxMesh2.GetSpecifiedNormals();
+
+    ASSERT_EQ(specNormals1 == nullptr, specNormals2 == nullptr);
+
+    // Compare normals
+    auto numNormal1 = specNormals1->GetNumNormals();
+    auto numNormal2 = specNormals2->GetNumNormals();
+    ASSERT_EQ(numNormal1, numNormal2);
+    for (int i = 0; i < numNormal1; ++i) {
+        EXPECT_EQ(specNormals1->Normal(i), specNormals2->Normal(i));
+    }
+
+    // Compare normals face indices.
+    auto numFace1 = specNormals1->GetNumFaces();
+    auto numFace2 = specNormals2->GetNumFaces();
+    ASSERT_EQ(numFace1, numFace2);
+
+    for (int i = 0; i < numFace1; i++) {
+        auto deg1 = specNormals1->Face(i).GetDegree();
+        auto deg2 = specNormals2->Face(i).GetDegree();
+
+        ASSERT_EQ(deg1, deg2);
+        for (int j = 0; j < specNormals1->Face(i).GetDegree(); j++) {
+            EXPECT_EQ(specNormals1->Face(i).GetNormalID(j), specNormals2->Face(i).GetNormalID(j));
+        }
+    }
+}
+
+void CompareUSDMatrices(const pxr::GfMatrix4d& matrix1, const pxr::GfMatrix4d& matrix2)
+{
+    for (int i = 0; i < 4; i++) {
+        for (int j = 0; j < 4; j++) {
+            EXPECT_EQ(matrix1[i][j], matrix2[i][j]);
+        }
+    }
+}
+
+MNMesh CreatePlane(int rows, int cols)
+{
+    if (rows <= 0 || cols <= 0) {
+        return MNMesh();
+    }
+
+    MNMesh    plane;
+    const int NB_FACES = rows * cols;
+    const int NB_VERTS = (rows + 1) * (cols + 1);
+
+    plane.setNumFaces(NB_FACES);
+    plane.setNumVerts(NB_VERTS);
+
+    auto count = 0;
+    for (auto y = 0; y <= cols; ++y) {
+        for (auto x = 0; x <= rows; ++x) {
+            plane.V(count)->p = Point3(x, y, 0);
+            ++count;
+        }
+    }
+
+    int row = 0;
+    for (auto n = 0; n < NB_FACES; ++n) {
+        row = n / rows;
+        plane.F(n)->SetDeg(4);
+        plane.F(n)->vtx[0] = n + row;
+        plane.F(n)->vtx[1] = plane.F(n)->vtx[0] + cols + 1;
+        plane.F(n)->vtx[2] = plane.F(n)->vtx[0] + cols + 2;
+        plane.F(n)->vtx[3] = plane.F(n)->vtx[0] + 1;
+    }
+
+    plane.FillInMesh();
+
+    return plane;
+}
+
+MNMesh CreateCube(bool specififyNormals)
+{
+    // Cube from a BOXOBJ_CLASS_ID object.
+    MNMesh cube;
+    cube.setNumFaces(6);
+    cube.setNumVerts(8);
+    cube.V(0)->p = Point3(-1.f, -1.f, -1.f);
+    cube.V(1)->p = Point3(1.f, -1.f, -1.f);
+    cube.V(2)->p = Point3(-1.f, 1.f, -1.f);
+    cube.V(3)->p = Point3(1.f, 1.f, -1.f);
+    cube.V(4)->p = Point3(-1.f, -1.f, 1.f);
+    cube.V(5)->p = Point3(1.f, -1.f, 1.f);
+    cube.V(6)->p = Point3(-1.f, 1.f, 1.f);
+    cube.V(7)->p = Point3(1.f, 1.f, 1.f);
+    cube.F(0)->SetDeg(4);
+    cube.F(0)->vtx[0] = 0;
+    cube.F(0)->vtx[1] = 2;
+    cube.F(0)->vtx[2] = 3;
+    cube.F(0)->vtx[3] = 1;
+    cube.F(1)->SetDeg(4);
+    cube.F(1)->vtx[0] = 4;
+    cube.F(1)->vtx[1] = 5;
+    cube.F(1)->vtx[2] = 7;
+    cube.F(1)->vtx[3] = 6;
+    cube.F(2)->SetDeg(4);
+    cube.F(2)->vtx[0] = 0;
+    cube.F(2)->vtx[1] = 1;
+    cube.F(2)->vtx[2] = 5;
+    cube.F(2)->vtx[3] = 4;
+    cube.F(3)->SetDeg(4);
+    cube.F(3)->vtx[0] = 1;
+    cube.F(3)->vtx[1] = 3;
+    cube.F(3)->vtx[2] = 7;
+    cube.F(3)->vtx[3] = 5;
+    cube.F(4)->SetDeg(4);
+    cube.F(4)->vtx[0] = 3;
+    cube.F(4)->vtx[1] = 2;
+    cube.F(4)->vtx[2] = 6;
+    cube.F(4)->vtx[3] = 7;
+    cube.F(5)->SetDeg(4);
+    cube.F(5)->vtx[0] = 2;
+    cube.F(5)->vtx[1] = 0;
+    cube.F(5)->vtx[2] = 4;
+    cube.F(5)->vtx[3] = 6;
+    cube.FillInMesh();
+
+    if (specififyNormals) {
+        // Setup explicit normals
+        cube.SpecifyNormals();
+        auto specifiedNormals = cube.GetSpecifiedNormals();
+
+        specifiedNormals->SetParent(&cube);
+        specifiedNormals->SetNumFaces(6);
+        specifiedNormals->SetNumNormals(6);
+
+        specifiedNormals->Normal(0) = Point3(0, 0, -1);
+        specifiedNormals->Normal(1) = Point3(0, 0, 1);
+        specifiedNormals->Normal(2) = Point3(0, -1, 0);
+        specifiedNormals->Normal(3) = Point3(1, 0, 0);
+        specifiedNormals->Normal(4) = Point3(0, 1, 0);
+        specifiedNormals->Normal(5) = Point3(-1, 0, 0);
+
+        for (int i = 0; i < cube.FNum(); i++) {
+            specifiedNormals->Face(i).SetDegree(cube.F(i)->deg);
+            specifiedNormals->Face(i).SpecifyAll();
+            for (int j = 0; j < cube.F(i)->deg; j++) {
+                specifiedNormals->SetNormalIndex(i, j, i);
+            }
+        }
+        specifiedNormals->SetAllExplicit();
+        specifiedNormals->CheckNormals();
+        cube.InvalidateGeomCache();
+    }
+    return cube;
+}
+
+// Creates a simple roof-ish shape formed by two connecting quads.
+MNMesh CreateRoofShape()
+{
+    MNMesh roof;
+    roof.setNumFaces(2);
+    roof.setNumVerts(6);
+    roof.V(0)->p = Point3(-1.f, -1.f, 0.f);
+    roof.V(1)->p = Point3(0.f, -1.f, 1.f);
+    roof.V(2)->p = Point3(0.f, 1.f, 1.f);
+    roof.V(3)->p = Point3(-1.f, 1.f, 0.f);
+    roof.V(4)->p = Point3(1.f, -1.f, 0.f);
+    roof.V(5)->p = Point3(1.f, 1.f, 0.f);
+    roof.F(0)->SetDeg(4);
+    roof.F(0)->vtx[0] = 0;
+    roof.F(0)->vtx[1] = 1;
+    roof.F(0)->vtx[2] = 2;
+    roof.F(0)->vtx[3] = 3;
+    roof.F(1)->SetDeg(4);
+    roof.F(1)->vtx[0] = 1;
+    roof.F(1)->vtx[1] = 4;
+    roof.F(1)->vtx[2] = 5;
+    roof.F(1)->vtx[3] = 2;
+    roof.FillInMesh();
+    return roof;
+}
+
+MNMesh CreateQuad()
+{
+    MNMesh quad;
+    quad.setNumFaces(1);
+    quad.setNumVerts(4);
+    quad.V(0)->p = Point3(-1.f, -1.f, 0.f);
+    quad.V(1)->p = Point3(1.f, -1.f, 00.f);
+    quad.V(2)->p = Point3(1.f, 1.f, 0.f);
+    quad.V(3)->p = Point3(-1.f, 1.f, 0.f);
+    quad.F(0)->SetDeg(4);
+    quad.F(0)->vtx[0] = 0;
+    quad.F(0)->vtx[1] = 1;
+    quad.F(0)->vtx[2] = 2;
+    quad.F(0)->vtx[3] = 3;
+    quad.FillInMesh();
+    return quad;
+}
+
+std::string GetOutputDirectory()
+{
+    auto tempDir = fs::temp_directory_path();
+    tempDir /= "usd-component-tests";
+    return tempDir.u8string();
+}
+
+} // namespace TestUtils
\ No newline at end of file
diff --git a/src/Tests/Unit/TestUtils.h b/src/Tests/Unit/TestUtils.h
new file mode 100644
index 0000000..27cc52d
--- /dev/null
+++ b/src/Tests/Unit/TestUtils.h
@@ -0,0 +1,65 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <pxr/usd/usdGeom/mesh.h>
+
+#include <gtest/gtest.h>
+
+namespace TestUtils {
+
+// Simple delegate to catch and fail tests in case USD reports any coding errors or warnings.
+class DiagnosticsDelegate : public pxr::TfDiagnosticMgr::Delegate
+{
+public:
+    void IssueError(const pxr::TfError& err) override { FAIL() << err.GetCommentary(); }
+    void IssueFatalError(const pxr::TfCallContext& context, const std::string& msg) override
+    {
+        FAIL() << msg;
+    }
+
+    void IssueStatus(const pxr::TfStatus& status) override { };
+    void IssueWarning(const pxr::TfWarning& warning) override { FAIL() << warning.GetCommentary(); }
+};
+
+void CompareUsdAndMaxMeshes(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh);
+void CompareVertices(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh);
+void CompareFaceVertexCount(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh);
+void CompareFaceVertices(const MNMesh& maxMesh, const pxr::UsdGeomMesh& usdMesh);
+void CompareMaxMeshNormals(MNMesh& maxMesh1, MNMesh& maxMesh2);
+void CompareUSDMatrices(const pxr::GfMatrix4d& matrix1, const pxr::GfMatrix4d& matrix2);
+
+MNMesh CreatePlane(int rows, int cols);
+MNMesh CreateCube(bool specifyNormals);
+MNMesh CreateRoofShape();
+MNMesh CreateQuad();
+
+std::string GetOutputDirectory();
+
+// Used to expose protected methods from the MeshConverter so it can be tested.
+class MeshConverterTester : public MaxUsd::MeshConverter
+{
+public:
+    MeshConverterTester()
+        : MeshConverter()
+    {
+    }
+    using MaxUsd::MeshConverter::ResolveChannelPrimvars;
+};
+
+} // namespace TestUtils
diff --git a/src/Tests/Unit/USD.Unit.test.filters b/src/Tests/Unit/USD.Unit.test.filters
new file mode 100644
index 0000000..acc04e6
--- /dev/null
+++ b/src/Tests/Unit/USD.Unit.test.filters
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="test.cpp" />
+    <ClCompile Include="pch.cpp" />
+    <ClCompile Include="TestUtils.cpp" />
+    <ClCompile Include="MaxUsd.MeshConversion.test.cpp" />
+    <ClCompile Include="Mocks\MockCoreInterface.cpp">
+      <Filter>Mocks</Filter>
+    </ClCompile>
+    <ClCompile Include="MaxUsd.ChannelBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.CreaseDataConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MapChannelConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MappedAttributeBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.MaterialUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MathUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshNormals.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.test.cpp" />
+    <ClCompile Include="MaxUsd.TranslationUtils.test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h" />
+    <ClInclude Include="TestUtils.h" />
+    <ClInclude Include="Mocks\DllDirInternal.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockBitmapIO.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockCoreInterface.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockDllDir.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockFPInterface.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockINode.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockLog.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockModifier.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockObject.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockPathConfigMgr.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockRenderer.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockStdMat.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockViewExp.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Mocks">
+      <UniqueIdentifier>{32e4ed40-6f6c-4cc2-b980-d061d5fc044b}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Tests/Unit/USD.Unit.test.vcxproj b/src/Tests/Unit/USD.Unit.test.vcxproj
new file mode 100644
index 0000000..a924f78
--- /dev/null
+++ b/src/Tests/Unit/USD.Unit.test.vcxproj
@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{3bcf1b3e-b79e-441b-81ee-2a72e20d9282}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <ConfigurationType>Application</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="..\..\USD.props" />
+    <Import Project="..\..\3dsmax.component.settings.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <OutDir>$(ContentsDir)bin\</OutDir>
+  </PropertyGroup>
+  <ItemGroup>
+    <ClInclude Include="TestUtils.h" />
+    <ClCompile Include="main.cpp" />
+    <ClCompile Include="MaxUsd.VtDictionaryUtils.test.cpp" />
+    <ClCompile Include="Mocks\MockCoreInterface.cpp" />
+    <ClCompile Include="TestUtils.cpp" />
+    <ClCompile Include="MaxUsd.ChannelBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.CreaseDataConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MapChannelConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MappedAttributeBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.MaterialUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MathUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshNormals.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.test.cpp" />
+    <ClCompile Include="MaxUsd.TranslationUtils.test.cpp" />
+    <ClInclude Include="Mocks\DllDirInternal.h" />
+    <ClInclude Include="Mocks\MockBitmapIO.h" />
+    <ClInclude Include="Mocks\MockCoreInterface.h" />
+    <ClInclude Include="Mocks\MockDllDir.h" />
+    <ClInclude Include="Mocks\MockFPInterface.h" />
+    <ClInclude Include="Mocks\MockINode.h" />
+    <ClInclude Include="Mocks\MockLog.h" />
+    <ClInclude Include="Mocks\MockModifier.h" />
+    <ClInclude Include="Mocks\MockObject.h" />
+    <ClInclude Include="Mocks\MockPathConfigMgr.h" />
+    <ClInclude Include="Mocks\MockRenderer.h" />
+    <ClInclude Include="Mocks\MockStdMat.h" />
+    <ClInclude Include="Mocks\MockViewExp.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="MaxUsd.MeshFacade.test.cpp" />
+    <ClCompile Include="MaxUsd.ShaderWriterRegistry.test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="unittest_banned.h" />
+  </ItemGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <PreprocessorDefinitions>_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(GoogleTestInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ForcedIncludeFiles>$(ProjectDir)/unittest_banned.h</ForcedIncludeFiles>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
+      <AdditionalLibraryDirectories>$(GoogleTestLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>core.lib;bmm.lib;geom.lib;mesh.lib;maxutil.lib;mnmath.lib;gtest.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <ClCompile>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Tests/Unit/USD.Unit.test.vcxproj.filters b/src/Tests/Unit/USD.Unit.test.vcxproj.filters
new file mode 100644
index 0000000..6bec60d
--- /dev/null
+++ b/src/Tests/Unit/USD.Unit.test.vcxproj.filters
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="TestUtils.cpp" />
+    <ClCompile Include="MaxUsd.ChannelBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.CreaseDataConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MapChannelConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MappedAttributeBuilder.test.cpp" />
+    <ClCompile Include="MaxUsd.MaterialUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MathUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshConversion.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshNormals.test.cpp" />
+    <ClCompile Include="MaxUsd.MeshUtils.test.cpp" />
+    <ClCompile Include="MaxUsd.test.cpp" />
+    <ClCompile Include="MaxUsd.TranslationUtils.test.cpp" />
+    <ClCompile Include="Mocks\MockCoreInterface.cpp">
+      <Filter>Mocks</Filter>
+    </ClCompile>
+    <ClCompile Include="main.cpp" />
+    <ClCompile Include="MaxUsd.MeshFacade.test.cpp" />
+    <ClCompile Include="MaxUsd.ShaderWriterRegistry.test.cpp" />
+    <ClCompile Include="MaxUsd.VtDictionaryUtils.test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="TestUtils.h" />
+    <ClInclude Include="Mocks\DllDirInternal.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockBitmapIO.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockCoreInterface.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockDllDir.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockFPInterface.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockINode.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockLog.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockModifier.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockObject.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockPathConfigMgr.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockRenderer.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockStdMat.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="Mocks\MockViewExp.h">
+      <Filter>Mocks</Filter>
+    </ClInclude>
+    <ClInclude Include="unittest_banned.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Mocks">
+      <UniqueIdentifier>{cf620532-bff1-40be-8e6e-ec7f2165e1ea}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Tests/Unit/main.cpp b/src/Tests/Unit/main.cpp
new file mode 100644
index 0000000..a7402b2
--- /dev/null
+++ b/src/Tests/Unit/main.cpp
@@ -0,0 +1,39 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "Mocks/MockCoreInterface.h"
+
+#include <gtest/gtest.h>
+
+#if defined(MAX_2022) || defined(MAX_2023) || defined(MAX_2024) || defined(MAX_2025)
+extern void SetCOREInterface(Interface17* ip);
+#elif defined(IS_MAX_BETA)
+extern void SetCOREInterface(Interface18* ip);
+#endif
+
+int main(int argc, char** argv)
+{
+
+    // Use a simple diagnostics delegate to fail tests if USD issues any errors or warnings.
+    TestUtils::DiagnosticsDelegate del;
+    pxr::TfDiagnosticMgr::GetInstance().AddDelegate(&del);
+
+    SetCOREInterface(new MockCoreInterface());
+    ::testing::InitGoogleTest(&argc, argv);
+    const auto returnCode = RUN_ALL_TESTS();
+
+    pxr::TfDiagnosticMgr::GetInstance().RemoveDelegate(&del);
+    return returnCode;
+}
diff --git a/src/Tests/Unit/unittest_banned.h b/src/Tests/Unit/unittest_banned.h
new file mode 100644
index 0000000..fc323e7
--- /dev/null
+++ b/src/Tests/Unit/unittest_banned.h
@@ -0,0 +1,38 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#pragma warning(push)
+#pragma warning(disable : 4244 4305)
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/quath.h>
+#include <pxr/base/gf/vec2f.h>
+#include <pxr/base/gf/vec2h.h>
+#include <pxr/base/gf/vec2i.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec3h.h>
+#include <pxr/base/gf/vec3i.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/base/gf/vec4h.h>
+#include <pxr/base/gf/vec4i.h>
+#include <pxr/usd/pcp/mapFunction.h>
+#pragma warning(pop)
+
+#include <pxr/usd/sdf/pathTable.h>
+#include <pxr/usd/usd/prim.h>
+#include <pxr/usd/usd/primData.h>
+
+#include <usd_banned.h>
\ No newline at end of file
diff --git a/src/Tests/run_integration_tests.py b/src/Tests/run_integration_tests.py
new file mode 100644
index 0000000..61bbe0c
--- /dev/null
+++ b/src/Tests/run_integration_tests.py
@@ -0,0 +1,158 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import os
+import argparse
+import subprocess
+import tempfile
+
+from os import path
+
+
+class TestDetails:
+
+    def __init__(self):
+        self.executable = ""    # Location of 3dmax.exe to run.
+        self.log_file = ""      # Location to save test_runner.py log.
+        self.error_file = ""    # File location to save test names that generated errors.
+        self.tests = ""         # Test names that user entered as argument on the command line.
+        self.env_var_tests = "" # Path of tests to run. (Comma separated)
+
+def parse_user_args(parsed_values):
+    parser = argparse.ArgumentParser(
+        description='Script to run USD test integration.'
+    )
+    required_args = parser.add_argument_group('required arguments')
+    required_args.add_argument(
+        '-m', '--maxpath',
+        dest='maxpath',
+        help='Location of 3dsMax.exe to use. '
+             'Ex: --maxpath "C:\\Program Files\\Autodesk\\3ds Max 2022\\3dsmax.exe"',
+        required=True
+    )
+    parser.add_argument(
+        '-l', '--logpath',
+        dest='logpath',
+        help='Location to save log file. '
+             'Ex: --logpath "C:\\Temp\\TestResult.txt"',
+        required=False
+    )
+    parser.add_argument(
+        '-t', '--tests',
+        dest='tests',
+        help='List of test to run. If not specified, will run all available tests. '
+             'Ex: --tests test1.ms,test2.ms ...',
+        required=False
+    )
+
+    try:
+        args = parser.parse_args()
+    except:
+        os._exit(-1)
+
+    parsed_values.executable = args.maxpath
+
+    if args.logpath:
+        parsed_values.log_file = args.logpath
+    else:
+        parsed_values.log_file = ""
+
+    if args.tests:
+        parsed_values.env_var_tests = ""
+        parsed_values.tests = args.tests
+    else:
+        parsed_values.env_var_tests = "ALL"
+        parsed_values.tests = "ALL"
+
+
+def check_and_store_valid_tests(test_details):
+    error_details = list()
+    integration_test_dir = os.path.join(os.path.dirname(__file__), "Integration")
+    tests = test_details.tests.split(',')
+    for test in tests:
+        current_test_path = os.path.join(integration_test_dir, test)
+        if not path.exists(current_test_path):
+            error_details.append(test)
+        else:
+            test_details.env_var_tests += current_test_path + ','
+
+    # Remove last ',' from tests
+    test_details.env_var_tests = test_details.env_var_tests[:-1]
+
+    return error_details
+
+def main():
+    test_run = TestDetails()
+    test_run.error_file = tempfile.NamedTemporaryFile().name
+
+    # Parse command line argument
+    parse_user_args(test_run)
+
+    # Check if 3dsMax path is valid
+    if not path.exists(test_run.executable):
+        print("3dsMax.exe not found")
+        os._exit(-1)
+
+    # Check if all tests specified exist and save tests in environment variable
+    if test_run.tests != "ALL":
+        file_check = check_and_store_valid_tests(test_run)
+        if file_check:
+            print("Test not found:{0}".format(','.join(file_check)))
+            os._exit(-1)
+
+    # Pass test to run / log as environment variable
+    os.environ['3DSMAX_USD_INTEGRATION'] = "1"
+    os.environ['3DSMAX_USD_INTEGRATION_LOG'] = test_run.log_file
+    os.environ['3DSMAX_USD_INTEGRATION_TESTS'] = test_run.env_var_tests
+    os.environ['3DSMAX_USD_INTEGRATION_ERROR'] = test_run.error_file
+
+    # Create command to launch 3dsMax with python script
+    this_dir = os.path.dirname(__file__)
+    runner_path = os.path.join(os.path.abspath(this_dir), "test_runner.py")
+    if not path.exists(runner_path):
+        print("test_runner.py not found in {0}. Exiting.".format(runner_path))
+        os._exit(-1)
+
+    test_runner = ("{0} -u PythonHost {1}").format(test_run.executable, runner_path)
+
+    # Launch 3dsMax with script as argument
+    subprocess.run(test_runner, shell=False)
+
+    # Check if there are errors reported
+    if path.exists(test_run.error_file):
+        with open(test_run.error_file, 'r') as error_file:
+            errors = error_file.read()
+
+        os.remove(test_run.error_file)
+
+        if errors == "PASS":
+            print("\n\nSUCCESS: All tests ran successfully.\n\n")
+            os._exit(0)
+        else:
+            print("\n\nERROR: The following tests were not run successfully:")
+            errors_split = errors.split('\n')
+            for err in errors_split:
+                if err:
+                    print("\t-{0}".format(err))
+            print("\n")
+            if test_run.log_file:
+                print("\tPlease see details in: {0}\n".format(test_run.log_file))
+            os._exit(-1)
+    
+    print("\n\nWARNING: Error report file not found, can't report test results status.\n\n")
+    os._exit(-1)
+
+# Run tests
+main()
\ No newline at end of file
diff --git a/src/Tests/test_runner.py b/src/Tests/test_runner.py
new file mode 100644
index 0000000..1e06806
--- /dev/null
+++ b/src/Tests/test_runner.py
@@ -0,0 +1,177 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import unittest
+import os
+import glob
+import pymxs
+try:
+    import MaxPlus
+except ImportError:
+    pass
+import sys
+
+from os import path
+mxs = pymxs.runtime
+
+# Accumulates tests that failed
+test_failed = list()
+
+def get_test_run_type():
+    """ Return a string
+    Read environment variable '3DSMAX_USD_INTEGRATION_TESTS' to know which specific tests we should be running.
+    Default if environment variable is not found. --> ALL
+        (Will run all tests)
+    """
+    return os.environ.get('3DSMAX_USD_INTEGRATION_TESTS', 'ALL')
+
+
+def get_test_log_file():
+    """ Return a string
+    Read environment variable '3DSMAX_USD_INTEGRATION_LOG' to know where to write result log.
+    Default if environment variable is not found --> "" 
+        (Will use 'os.path.join(integration_test_dir, max_version + '_test_log.txt')' as specified in __main__)
+    """
+    return os.environ.get('3DSMAX_USD_INTEGRATION_LOG','')
+
+def get_error_file():
+    """ Return a string
+    Read environment variable '3DSMAX_USD_INTEGRATION_ERROR' to know where to write test that failed.
+    If environment variable is not found, error report won't be created
+    """
+    return os.environ.get('3DSMAX_USD_INTEGRATION_ERROR','')
+
+def get_test_run_from_external_script():
+    """ Return a string
+    Read environment variable '3DSMAX_USD_INTEGRATION' to know if we are running from test runner
+    Default if environment variable is not found --> ""
+        (Will run as inside 3dsMax)
+    """
+    return os.environ.get('3DSMAX_USD_INTEGRATION', '')
+
+def CreateTestReport():
+    out_file_path = get_error_file()
+    if out_file_path:
+        with open(out_file_path, "a+") as out_file:
+            if(len(test_failed) == 0):
+                out_file.write("PASS")
+            else:
+                for value in test_failed:
+                    out_file.write(str(value))
+                    out_file.write("\n")
+
+def get_max_version():
+    mxs_max_version = mxs.maxversion()
+    max_version = str(mxs_max_version[7])
+    return max_version
+
+
+class MaxScriptTestResult(unittest.TextTestResult):
+    def addFailure(self, test, err):
+        test_failed.append(test)
+        if isinstance(test, MaxScriptTestCase):
+            for maxscript_assert in test.assert_failures:
+                self.failures.append((test, maxscript_assert))
+                self.stream.writeln("ERROR")
+        else:
+            super(MaxScriptTestResult, self).addFailure(test, err)
+
+    def addError(self, test, err):
+        test_failed.append(test)
+        if isinstance(test, MaxScriptTestCase):
+            for maxscript_exception in test.exception_failures:
+                self.errors.append((test, maxscript_exception))
+                self.stream.writeln("FAIL")
+        else:
+            super(MaxScriptTestResult, self).addError(test, err)
+
+
+class MaxScriptTestCase(unittest.TestCase):
+    def __init__(self, maxscript):
+        super(MaxScriptTestCase, self).__init__()
+        self.maxscript = maxscript
+        self.assert_failures = []
+        self.exception_failures = []
+
+    def __str__(self):
+        return "{0}".format(os.path.basename(self.maxscript))
+
+    def id(self):
+        return self.maxscript
+
+    def shortDescription(self):
+        return self.maxscript
+
+    def setUp(self):
+        mxs.AssertReporter.Clear()
+
+    def runTest(self):
+        # Set global variable before running the maxscript so that this python script manages 3dsMax asserts instead of `usd_test_utils.mxs`.
+        # If this variable is not set, then we will not capture all asserts has they will be cleared by `usd_test_utils.mxs` script.
+        script = 'global assert_managed_python = true \nfileIn "{0}"'.format(self.maxscript.replace("\\", "/"))
+        try:
+            ret = mxs.execute(script)
+        except Exception as e:
+            # Exception details are available here
+            self.assert_failures.append(str(e))
+            self.fail(str(e))
+            return
+
+        assert_failures = list(mxs.AssertReporter.GetAssertFailures())
+        if assert_failures:
+            self.assert_failures = assert_failures
+            self.fail("\n".join(assert_failures))
+        exception_failures = list(mxs.AssertReporter.GetExceptionFailures())
+        if exception_failures:
+            self.exception_failures = exception_failures
+            self.fail("\n".join(exception_failures))
+
+def mxs_suite(test_dir):
+    suite = unittest.TestSuite()
+
+    tests_to_run = get_test_run_type()
+    if tests_to_run == "ALL":
+        scripts = glob.glob(os.path.join(test_dir, "*.ms"))
+    else:
+        scripts = tests_to_run.split(',')
+
+    tests = (MaxScriptTestCase(script) for script in scripts)
+    suite.addTests(tests)
+    return suite
+
+def run_tests(test_dir, log_stream):
+    test_runner = unittest.TextTestRunner(log_stream, resultclass=MaxScriptTestResult, verbosity=2)
+    suite = mxs_suite(test_dir)
+    res = test_runner.run(suite)
+    if get_test_run_from_external_script():
+        CreateTestReport()
+        mxs.quitMax(exitCode=0, quiet=True)
+    if any(res.errors):
+        sys.exit(1)
+    if any(res.failures):
+        sys.exit(1)
+
+def main():
+    max_version = get_max_version()
+    this_dir = os.path.dirname(__file__)
+    integration_test_dir = os.path.join(this_dir, "Integration")
+    log_file = get_test_log_file()
+    if not log_file:
+        log_file = os.path.join(integration_test_dir, max_version + '_test_log.txt')
+    with open(log_file, "w") as log_stream:
+        run_tests(integration_test_dir, log_stream)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/src/UFE.props b/src/UFE.props
new file mode 100644
index 0000000..e0be41c
--- /dev/null
+++ b/src/UFE.props
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+	xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+	<PropertyGroup Label="UserMacros">
+		<UfeInc Condition="'$(MaxUsdDevKit)'!='' and '$(UfeInc)'==''">$(MaxUsdDevKit)\ufe\include</UfeInc>
+		<UfeLib Condition="'$(MaxUsdDevKit)'!='' and '$(UfeLib)'==''">$(MaxUsdDevKit)\ufe\lib</UfeLib>
+		<UfeInc Condition="'$(UfeInc)'==''">$(Artifacts)$(VersionTarget)\ufe\ufe-5.3.0\common\include</UfeInc>
+		<UfeLib Condition="'$(UfeLib)'==''">$(Artifacts)$(VersionTarget)\ufe\ufe-5.3.0\platform\Windows\RelWithDebInfo\lib</UfeLib>
+	</PropertyGroup>
+	
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(UfeInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(UfeLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+			<AdditionalDependencies>ufe_5.lib;%(AdditionalDependencies)</AdditionalDependencies>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/src/UFEUI/Tests/UFE.Unit.test.vcxproj b/src/UFEUI/Tests/UFE.Unit.test.vcxproj
new file mode 100644
index 0000000..05d1b5a
--- /dev/null
+++ b/src/UFEUI/Tests/UFE.Unit.test.vcxproj
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C073624F-E30A-452F-B250-0599DBFA7099}</ProjectGuid>
+    <Keyword>QtVS_v302</Keyword>
+    <ConfigurationType>Application</ConfigurationType>
+    <ProjectName>UFEUI.Unit.test</ProjectName>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="..\..\3dsmax.component.settings.props" />
+    <Import Project="..\..\UFE.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <OutDir>$(ContentsDir)bin\</OutDir>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\UFEUI\UFEUI.vcxproj">
+      <Project>{0E1A6B42-080B-475C-8F53-613C47A99C81}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="testUfeRuntime.cpp" />
+    <ClCompile Include="ufeUi.explorer.cpp" />
+    <ClCompile Include="ufeUi.standardTreeColumns.test.cpp" />
+    <ClCompile Include="ufeUi.explorerObserver.test.cpp" />
+    <ClCompile Include="main.cpp" />
+    <ClCompile Include="ufeUi.treeItem.test.cpp" />
+    <ClCompile Include="ufeUi.treeModel.test.cpp" />
+    <ClCompile Include="ufeUi.utils.test.cpp" />
+    <ClCompile Include="utils.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="testUfeRuntime.h" />
+    <ClInclude Include="ufeUiTestBase.h" />
+    <ClInclude Include="utils.h" />
+  </ItemGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4251;4275;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(GoogleTestInc);$(UfeInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
+      <AdditionalLibraryDirectories>$(GoogleTestLib);$(UfeLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>gtest.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <ClCompile>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/UFEUI/Tests/UFE.Unit.test.vcxproj.filters b/src/UFEUI/Tests/UFE.Unit.test.vcxproj.filters
new file mode 100644
index 0000000..e5034ee
--- /dev/null
+++ b/src/UFEUI/Tests/UFE.Unit.test.vcxproj.filters
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="testUfeRuntime.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="main.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.explorerObserver.test.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.standardTreeColumns.test.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.treeItem.test.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.treeModel.test.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="utils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.explorer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ufeUi.utils.test.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="utils.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="testUfeRuntime.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="ufeUiTestBase.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{971bf1e2-f6ba-4815-8596-2096ebfed22e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{241b8c15-135c-4239-bf32-f3fc0a6a9009}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/UFEUI/Tests/main.cpp b/src/UFEUI/Tests/main.cpp
new file mode 100644
index 0000000..7301da7
--- /dev/null
+++ b/src/UFEUI/Tests/main.cpp
@@ -0,0 +1,74 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "utils.h"
+
+#include <UFEUI/editCommand.h>
+
+#include <ufe/runTimeMgr.h>
+#include <ufe/scene.h>
+#include <ufe/undoableCommandMgr.h>
+
+#include <QtCore/QTimer>
+#include <QtWidgets/QApplication.h>
+#include <gtest/gtest.h>
+
+int main(int argc, char** argv)
+{
+    // Setup a QT application, to allow instanciating qt widgets in tests.
+    QScopedPointer<QApplication> app(new QApplication(argc, argv));
+
+    QTimer::singleShot(0, [&]() {
+        ::testing::InitGoogleTest(&argc, argv);
+
+        // Setup test UFE runtime.
+        Ufe::RunTimeMgr::Handlers handlers;
+
+        handlers.hierarchyHandler = UfeUiTest::TestHierarchyHandler::create();
+        handlers.object3dHandler = std::make_shared<UfeUiTest::TestObject3dHandler>();
+
+        Ufe::RunTimeMgr::instance().register_("testRuntime", handlers);
+
+        class TestScene : public Ufe::Scene
+        {
+        };
+        Ufe::Scene::initializeInstance(std::make_shared<TestScene>());
+
+        class TestUndoableCommandMgr : public Ufe::UndoableCommandMgr
+        {
+        public:
+            TestUndoableCommandMgr() = default;
+        };
+        Ufe::UndoableCommandMgr::initializeInstance(std::make_shared<TestUndoableCommandMgr>());
+
+        class TestEditCommand : public UfeUi::EditCommand
+        {
+        public:
+            using UfeUi::EditCommand::EditCommand;
+            void pre() override {};
+            void post() override {};
+        };
+        auto create = [](const Ufe::Path&                 path,
+                         const Ufe::UndoableCommand::Ptr& cmd,
+                         const std::string&               cmdString) {
+            return std::make_shared<TestEditCommand>(path, cmd, cmdString);
+        };
+        UfeUi::EditCommand::initializeCreator(create);
+
+        const auto returnCode = RUN_ALL_TESTS();
+        app->exit(returnCode);
+    });
+    return app->exec();
+}
diff --git a/src/UFEUI/Tests/testUfeRuntime.cpp b/src/UFEUI/Tests/testUfeRuntime.cpp
new file mode 100644
index 0000000..74eb7dc
--- /dev/null
+++ b/src/UFEUI/Tests/testUfeRuntime.cpp
@@ -0,0 +1,299 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+
+#include "utils.h"
+
+#include <stdexcept>
+#include <unordered_map>
+
+namespace UfeUiTest {
+
+static const std::string notImplementedMsg = "Illegal call to unimplemented method.";
+
+TestSceneItem::TestSceneItem(const Ufe::Path& p)
+    : SceneItem(p)
+{
+}
+TestSceneItem::~TestSceneItem() = default;
+
+Ufe::UndoableCommandPtr TestSceneItem::clearMetadataCmd(const std::string& key) { return nullptr; }
+
+Ufe::Value TestSceneItem::getGroupMetadata(const std::string& group, const std::string& key) const
+{
+    return {};
+}
+
+Ufe::UndoableCommandPtr TestSceneItem::setGroupMetadataCmd(
+    const std::string& group,
+    const std::string& key,
+    const Ufe::Value&  value)
+{
+    return nullptr;
+}
+
+Ufe::UndoableCommandPtr
+TestSceneItem::clearGroupMetadataCmd(const std::string& group, const std::string& key)
+{
+    return nullptr;
+}
+
+void        TestSceneItem::setHideable(bool hideable) { _hideable = hideable; }
+bool        TestSceneItem::isHideable() { return _hideable; }
+std::string TestSceneItem::nodeType() const { return "TestSceneItemType"; }
+
+Ufe::Value TestSceneItem::getMetadata(const std::string&) const { return {}; }
+
+Ufe::UndoableCommandPtr
+TestSceneItem::setMetadataCmd(const std::string& key, const Ufe::Value& value)
+{
+    return nullptr;
+}
+
+void TestSceneItem::setMetadata(const std::string& key, const Ufe::Value& value) { }
+
+TestHierarchy::TestHierarchy(const TestSceneItem::Ptr& item) { _item = item; }
+
+Ufe::SceneItem::Ptr TestHierarchy::sceneItem() const { return _item; }
+
+bool TestHierarchy::hasChildren() const { return !_childrenMap[_item->path()].empty(); }
+
+Ufe::SceneItemList TestHierarchy::children() const
+{
+    Ufe::SceneItemList list;
+    const auto&        children = _childrenMap[_item->path()];
+    for (const auto& child : children) {
+        list.push_back(createItem(child));
+    }
+    return list;
+}
+
+bool TestHierarchy::hasFilteredChildren(const ChildFilter&) const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::SceneItemList TestHierarchy::filteredChildren(const ChildFilter& filter) const
+{
+    if (filter.empty() || filter.front().name != "testFilter" || !filter.front().value) {
+        return children();
+    }
+    // Arbitrarily filter out A2, B2, C2.
+    Ufe::SceneItemList list;
+    const auto&        children = _childrenMap[_item->path()];
+    for (const auto& child : children) {
+        if (child == A2 || child == B2 || child == C2) {
+            continue;
+        }
+        list.push_back(createItem(child));
+    }
+    return list;
+}
+
+Ufe::SceneItem::Ptr TestHierarchy::parent() const { return createItem(_parentMap[_item->path()]); }
+
+Ufe::SceneItem::Ptr TestHierarchy::defaultParent() const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::SceneItem::Ptr
+TestHierarchy::insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos)
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::InsertChildCommand::Ptr
+TestHierarchy::insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos)
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::SceneItem::Ptr TestHierarchy::createGroup(const Ufe::PathComponent& name) const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::InsertChildCommand::Ptr TestHierarchy::createGroupCmd(const Ufe::PathComponent& name) const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::UndoableCommand::Ptr TestHierarchy::reorderCmd(const Ufe::SceneItemList& orderedList) const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+Ufe::UndoableCommand::Ptr TestHierarchy::ungroupCmd() const
+{
+    throw std::logic_error(notImplementedMsg);
+}
+
+// Setup fake hierarchy like this :
+//           - B1
+//      - A1 - B2 - C1
+// root - A2      - C2
+//      - A3
+
+const Ufe::Path TestHierarchy::root = getUfePath("/root");
+const Ufe::Path TestHierarchy::A1 = getUfePath("/root/A1");
+const Ufe::Path TestHierarchy::A2 = getUfePath("/root/A2");
+const Ufe::Path TestHierarchy::A3 = getUfePath("/root/A3");
+const Ufe::Path TestHierarchy::B1 = getUfePath("/root/A1/B1");
+const Ufe::Path TestHierarchy::B2 = getUfePath("/root/A1/B2");
+const Ufe::Path TestHierarchy::C1 = getUfePath("/root/A1/B2/C1");
+const Ufe::Path TestHierarchy::C2 = getUfePath("/root/A1/B2/C2");
+
+std::unordered_map<Ufe::Path, std::vector<Ufe::Path>> TestHierarchy::_childrenMap;
+std::unordered_map<Ufe::Path, Ufe::Path>              TestHierarchy::_parentMap;
+
+void TestHierarchy::resetTestHierarchy()
+{
+    _childrenMap.clear();
+    _parentMap.clear();
+
+    addChild(root, A1);
+    addChild(root, A2);
+    addChild(root, A3);
+
+    addChild(A1, B1);
+    addChild(A1, B2);
+
+    addChild(B2, C1);
+    addChild(B2, C2);
+}
+
+void TestHierarchy::addChild(const Ufe::Path& parent, const Ufe::Path& child)
+{
+    _childrenMap[parent].push_back(child);
+    _parentMap[child] = parent;
+}
+
+void TestHierarchy::clearChildren(const Ufe::Path& parent)
+{
+    auto& children = _childrenMap[parent];
+    for (const auto& child : children) {
+        _parentMap.erase(child);
+    }
+    children.clear();
+}
+
+void TestHierarchy::removeChild(const Ufe::Path& child)
+{
+    const auto parent = _parentMap[child];
+    auto&      children = _childrenMap[parent];
+
+    const auto itc = std::find(children.begin(), children.end(), child);
+    if (itc != children.end()) {
+        children.erase(itc);
+    }
+    const auto itp = _parentMap.find(child);
+    if (itp != _parentMap.end()) {
+        _parentMap.erase(itp);
+    }
+}
+
+Ufe::Hierarchy::ChildFilter TestHierarchy::childFilter()
+{
+    ChildFilter childFilter;
+    childFilter.emplace_back("testFilter", "Test Filter Label", true);
+    return childFilter;
+}
+
+std::unordered_map<Ufe::Path, bool> TestObject3d::visMap;
+
+TestObject3d::TestObject3d(const TestSceneItem::Ptr& item) { _item = item; }
+
+Ufe::SceneItem::Ptr TestObject3d::sceneItem() const { return _item; }
+
+Ufe::BBox3d TestObject3d::boundingBox() const { return Ufe::BBox3d {}; }
+
+bool TestObject3d::visibility() const
+{
+    const auto it = visMap.find(_item->path());
+    if (it == visMap.end()) {
+        return true;
+    }
+    return it->second;
+}
+
+void TestObject3d::setVisibility(bool vis) { visMap[_item->path()] = vis; }
+
+class SetVisCommand : public Ufe::UndoableCommand
+{
+public:
+    SetVisCommand(const Ufe::SceneItem::Ptr& object, bool vis)
+        : _object(std::make_shared<TestObject3d>(std::dynamic_pointer_cast<TestSceneItem>(object)))
+        , _vis(vis)
+    {
+    }
+
+private:
+    void execute() override { _object->setVisibility(_vis); }
+    void undo() override { _object->setVisibility(!_vis); }
+    void redo() override { _object->setVisibility(_vis); }
+
+    TestObject3d::Ptr _object;
+    bool              _vis;
+};
+
+Ufe::UndoableCommand::Ptr TestObject3d::setVisibleCmd(bool vis)
+{
+    return std::make_shared<SetVisCommand>(sceneItem(), vis);
+}
+
+void TestObject3d::clearVisMap() { visMap.clear(); }
+
+TestObject3dHandler::Ptr TestObject3dHandler::create()
+{
+    return std::make_shared<TestObject3dHandler>();
+}
+
+Ufe::Object3d::Ptr TestObject3dHandler::object3d(const Ufe::SceneItem::Ptr& item) const
+{
+    TestSceneItem::Ptr testItem = std::dynamic_pointer_cast<TestSceneItem>(item);
+    if (!testItem || !testItem->isHideable()) {
+        return nullptr;
+    }
+    return std::make_shared<TestObject3d>(testItem);
+}
+
+TestHierarchyHandler::TestHierarchyHandler() { }
+
+TestHierarchyHandler::~TestHierarchyHandler() { }
+
+TestHierarchyHandler::Ptr TestHierarchyHandler::create()
+{
+    return std::make_shared<TestHierarchyHandler>();
+}
+
+Ufe::Hierarchy::Ptr TestHierarchyHandler::hierarchy(const Ufe::SceneItem::Ptr& item) const
+{
+    auto testItem = std::dynamic_pointer_cast<TestSceneItem>(item);
+    if (!testItem) {
+        return nullptr;
+    }
+    return std::make_shared<TestHierarchy>(testItem);
+}
+
+Ufe::SceneItem::Ptr TestHierarchyHandler::createItem(const Ufe::Path& path) const
+{
+    return std::make_shared<TestSceneItem>(path);
+}
+
+Ufe::Hierarchy::ChildFilter TestHierarchyHandler::childFilter() const { return {}; }
+
+} // namespace UfeUiTest
\ No newline at end of file
diff --git a/src/UFEUI/Tests/testUfeRuntime.h b/src/UFEUI/Tests/testUfeRuntime.h
new file mode 100644
index 0000000..7490c0b
--- /dev/null
+++ b/src/UFEUI/Tests/testUfeRuntime.h
@@ -0,0 +1,152 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "utils.h"
+
+#include <ufe/hierarchy.h>
+#include <ufe/hierarchyHandler.h>
+#include <ufe/object3dHandler.h>
+#include <ufe/sceneItem.h>
+#include <ufe/types.h>
+
+#include <unordered_map>
+
+namespace UfeUiTest {
+
+/* Dummy UFE runtime implementation */
+
+class TestSceneItem : public Ufe::SceneItem
+{
+public:
+    using Ptr = std::shared_ptr<TestSceneItem>;
+
+    TestSceneItem(const Ufe::Path& p);
+    ~TestSceneItem() override;
+
+    std::string nodeType() const override;
+    Ufe::Value  getMetadata(const std::string&) const override;
+    Ufe::UndoableCommandPtr
+         setMetadataCmd(const std::string& key, const Ufe::Value& value) override;
+    void setMetadata(const std::string& key, const Ufe::Value& value) override;
+    Ufe::UndoableCommandPtr clearMetadataCmd(const std::string& key = "") override;
+    Ufe::Value getGroupMetadata(const std::string& group, const std::string& key) const override;
+    Ufe::UndoableCommandPtr setGroupMetadataCmd(
+        const std::string& group,
+        const std::string& key,
+        const Ufe::Value&  value) override;
+    Ufe::UndoableCommandPtr
+    clearGroupMetadataCmd(const std::string& group, const std::string& key = "") override;
+
+    // For testing.
+    void setHideable(bool hideable);
+    bool isHideable();
+
+private:
+    bool _hideable = true;
+};
+
+class TestObject3d : public Ufe::Object3d
+{
+public:
+    using Ptr = std::shared_ptr<TestObject3d>;
+
+    TestObject3d(const TestSceneItem::Ptr& item);
+    Ufe::SceneItem::Ptr       sceneItem() const override;
+    Ufe::BBox3d               boundingBox() const override;
+    bool                      visibility() const override;
+    void                      setVisibility(bool vis) override;
+    Ufe::UndoableCommand::Ptr setVisibleCmd(bool vis) override;
+
+    // Resetting the backing state.
+    static void clearVisMap();
+
+private:
+    TestSceneItem::Ptr _item = nullptr;
+
+    // Fake a backing runtime, keeping track of vis/hidden items.
+    static std::unordered_map<Ufe::Path, bool> visMap;
+};
+
+class TestHierarchy : public Ufe::Hierarchy
+{
+public:
+    TestHierarchy(const TestSceneItem::Ptr& item);
+
+    Ufe::SceneItem::Ptr sceneItem() const override;
+    bool                hasChildren() const override;
+    Ufe::SceneItemList  children() const override;
+    bool                hasFilteredChildren(const ChildFilter&) const override;
+    Ufe::SceneItemList  filteredChildren(const ChildFilter&) const override;
+    Ufe::SceneItem::Ptr parent() const override;
+    Ufe::SceneItem::Ptr defaultParent() const override;
+    Ufe::SceneItem::Ptr
+    insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
+    Ufe::InsertChildCommand::Ptr
+    insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
+    Ufe::SceneItem::Ptr          createGroup(const Ufe::PathComponent& name) const override;
+    Ufe::InsertChildCommand::Ptr createGroupCmd(const Ufe::PathComponent& name) const override;
+    Ufe::UndoableCommand::Ptr    reorderCmd(const Ufe::SceneItemList& orderedList) const override;
+    Ufe::UndoableCommand::Ptr    ungroupCmd() const override;
+
+    // Manipulate fake runtime hierarchy.
+    static void                        resetTestHierarchy();
+    static void                        addChild(const Ufe::Path& parent, const Ufe::Path& child);
+    static void                        clearChildren(const Ufe::Path& parent);
+    static void                        removeChild(const Ufe::Path& child);
+    static Ufe::Hierarchy::ChildFilter childFilter();
+
+    static const Ufe::Path root;
+    static const Ufe::Path A1;
+    static const Ufe::Path A2;
+    static const Ufe::Path A3;
+    static const Ufe::Path B1;
+    static const Ufe::Path B2;
+    static const Ufe::Path C1;
+    static const Ufe::Path C2;
+
+private:
+    TestSceneItem::Ptr _item = nullptr;
+
+    // Fake backing model.
+    static std::unordered_map<Ufe::Path, std::vector<Ufe::Path>> _childrenMap;
+    static std::unordered_map<Ufe::Path, Ufe::Path>              _parentMap;
+};
+
+class TestHierarchyHandler : public Ufe::HierarchyHandler
+{
+public:
+    typedef std::shared_ptr<TestHierarchyHandler> Ptr;
+
+    TestHierarchyHandler();
+    ~TestHierarchyHandler() override;
+
+    static TestHierarchyHandler::Ptr create();
+
+    Ufe::Hierarchy::Ptr         hierarchy(const Ufe::SceneItem::Ptr& item) const override;
+    Ufe::SceneItem::Ptr         createItem(const Ufe::Path& path) const override;
+    Ufe::Hierarchy::ChildFilter childFilter() const override;
+};
+
+class TestObject3dHandler : public Ufe::Object3dHandler
+{
+public:
+    static TestObject3dHandler::Ptr create();
+
+    Ufe::Object3d::Ptr object3d(const Ufe::SceneItem::Ptr& item) const override;
+};
+
+} // namespace UfeUiTest
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUi.explorer.cpp b/src/UFEUI/Tests/ufeUi.explorer.cpp
new file mode 100644
index 0000000..24e2c3e
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.explorer.cpp
@@ -0,0 +1,95 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/Views/explorer.h>
+#include <UFEUI/treeitem.h>
+
+#include <ufe/scene.h>
+#include <ufe/sceneNotification.h>
+
+#include <gtest/gtest.h>
+
+class ExplorerTest : public UfeUiBaseTest
+{
+protected:
+    void SetUp() override
+    {
+        UfeUiBaseTest::SetUp();
+        // Explorer widget with our test hierarchy used as base for testing.
+        const auto              root = Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root"));
+        const UfeUi::TypeFilter typeFilter;
+        Ufe::Hierarchy::ChildFilter childFilter;
+        _testExplorer = new UfeUi::Explorer(root, {}, typeFilter, childFilter, false, "", {});
+    }
+    void TearDown() override
+    {
+        delete _testExplorer;
+        _testExplorer = nullptr;
+        UfeUiBaseTest::TearDown();
+    }
+    UfeUi::Explorer* _testExplorer = nullptr;
+};
+
+TEST_F(ExplorerTest, ExplorerObserver_updateFilter)
+{
+    const auto model = _testExplorer->treeModel();
+    const auto treeItemRoot = model->root();
+
+    // No filter active.
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 3);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(2)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(1)->childCount(), 2);
+
+    // Set the test fitler (filters A2,B2,C2).
+    auto filter = UfeUiTest::TestHierarchy::childFilter();
+    _testExplorer->setChildFilter(filter);
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+
+    // Disable the filter.
+    filter.front().value = false;
+    _testExplorer->setChildFilter(filter);
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 3);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(2)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(1)->childCount(), 2);
+
+    // Re-enable.
+    filter.front().value = true;
+    _testExplorer->setChildFilter(filter);
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+}
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUi.explorerObserver.test.cpp b/src/UFEUI/Tests/ufeUi.explorerObserver.test.cpp
new file mode 100644
index 0000000..cd13ac7
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.explorerObserver.test.cpp
@@ -0,0 +1,225 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/Views/explorer.h>
+#include <UFEUI/treeitem.h>
+
+#include <ufe/scene.h>
+#include <ufe/sceneNotification.h>
+
+#include <QtCore/QCoreApplication>
+#include <gtest/gtest.h>
+
+class ExplorerObserverTest : public UfeUiBaseTest
+{
+protected:
+    void SetUp() override
+    {
+        UfeUiBaseTest::SetUp();
+        // Explorer widget with our test hierarchy used as base for testing.
+        const auto              root = Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root"));
+        const UfeUi::TypeFilter typeFilter;
+        Ufe::Hierarchy::ChildFilter childFilter;
+        _testExplorer = new UfeUi::Explorer(root, {}, typeFilter, childFilter, false, "", {});
+    }
+    void TearDown() override
+    {
+        delete _testExplorer;
+        _testExplorer = nullptr;
+        UfeUiBaseTest::TearDown();
+    }
+    UfeUi::Explorer* _testExplorer = nullptr;
+};
+
+namespace {
+
+// Simulate a new object added from a runtime.
+void _addSceneItem(const Ufe::Path& path)
+{
+    const auto newObject = Ufe::Hierarchy::createItem(path);
+    Ufe::Scene::instance().notify(Ufe::ObjectAdd { newObject });
+}
+
+// Simulate the removal of an object.
+void _removeSceneItem(const Ufe::Path& path)
+{
+    UfeUiTest::TestHierarchy::removeChild(path);
+    const auto removedObject = Ufe::Hierarchy::createItem(path);
+    Ufe::Scene::instance().notify(Ufe::ObjectPostDelete { removedObject });
+}
+
+} // namespace
+
+TEST_F(ExplorerObserverTest, ExplorerObserver_objectAdded)
+{
+    const auto pseudoRoot = _testExplorer->treeModel()->root()->child(0);
+    ASSERT_EQ(pseudoRoot->childCount(), 3);
+
+    // Keep track of current children, to make sure those are kept, and not re-created.
+    const auto c1 = pseudoRoot->child(0);
+    const auto c2 = pseudoRoot->child(1);
+    const auto c3 = pseudoRoot->child(2);
+
+    const auto newObjectPath = UfeUiTest::getUfePath("/root/new");
+    _addSceneItem(newObjectPath);
+
+    EXPECT_EQ(pseudoRoot->childCount(), 4);
+    EXPECT_EQ(c1, pseudoRoot->child(0));
+    EXPECT_EQ(c2, pseudoRoot->child(1));
+    EXPECT_EQ(c3, pseudoRoot->child(2));
+
+    const auto idx = _testExplorer->treeModel()->getIndexFromPath(newObjectPath);
+    ASSERT_TRUE(idx.isValid());
+    const auto treeItem = _testExplorer->treeModel()->treeItem(idx);
+    ASSERT_NE(nullptr, treeItem);
+    EXPECT_EQ(newObjectPath, treeItem->sceneItem()->path());
+    EXPECT_EQ(treeItem, pseudoRoot->child(3));
+
+    // Add a few more!
+    _addSceneItem(UfeUiTest::getUfePath("/root/foo"));
+    _addSceneItem(UfeUiTest::getUfePath("/root/bar"));
+    _addSceneItem(UfeUiTest::getUfePath("/root/baz"));
+
+    EXPECT_EQ(pseudoRoot->childCount(), 7);
+}
+
+TEST_F(ExplorerObserverTest, ExplorerObserver_allObjectsRemoved)
+{
+    const auto pseudoRoot = _testExplorer->treeModel()->root();
+    ASSERT_EQ(pseudoRoot->child(0)->childCount(), 3);
+
+    // Remove A1,A2,A3 from the UFE scene..
+    _removeSceneItem(UfeUiTest::TestHierarchy::A1);
+    _removeSceneItem(UfeUiTest::TestHierarchy::A2);
+    _removeSceneItem(UfeUiTest::TestHierarchy::A3);
+
+    ASSERT_EQ(pseudoRoot->child(0)->childCount(), 0);
+}
+
+TEST_F(ExplorerObserverTest, ExplorerObserver_objectsRemoved)
+{
+    const auto pseudoRoot = _testExplorer->treeModel()->root()->child(0);
+    ASSERT_EQ(pseudoRoot->childCount(), 3);
+
+    const auto a1 = pseudoRoot->child(0);
+    const auto a2 = pseudoRoot->child(1);
+    const auto b2 = pseudoRoot->child(0)->child(1);
+    const auto c2 = pseudoRoot->child(0)->child(1)->child(1);
+
+    // Remove some object at each level.
+    _removeSceneItem(UfeUiTest::TestHierarchy::C1);
+    _removeSceneItem(UfeUiTest::TestHierarchy::B1);
+    _removeSceneItem(UfeUiTest::TestHierarchy::A3);
+
+    ASSERT_EQ(pseudoRoot->childCount(), 2);
+    EXPECT_EQ(pseudoRoot->child(0), a1);
+    EXPECT_EQ(pseudoRoot->child(1), a2);
+    ASSERT_EQ(pseudoRoot->child(0)->childCount(), 1);
+    EXPECT_EQ(pseudoRoot->child(0)->child(0), b2);
+    ASSERT_EQ(pseudoRoot->child(0)->child(0)->childCount(), 1);
+    EXPECT_EQ(pseudoRoot->child(0)->child(0)->child(0), c2);
+}
+
+TEST_F(ExplorerObserverTest, ExplorerObserver_objectsRemovedNoop)
+{
+    const auto pseudoRoot = _testExplorer->treeModel()->root()->child(0);
+    ASSERT_EQ(pseudoRoot->childCount(), 3);
+
+    // Remove an object at each level, going down the hierarchy
+    _removeSceneItem(UfeUiTest::TestHierarchy::A1);
+    _removeSceneItem(UfeUiTest::TestHierarchy::B1); // Already removed, child of A1
+    _removeSceneItem(UfeUiTest::TestHierarchy::C1); // Already removed child of B2 (child of A1)
+
+    ASSERT_EQ(pseudoRoot->childCount(), 2);
+    ASSERT_EQ(pseudoRoot->child(0)->childCount(), 0);
+    ASSERT_EQ(pseudoRoot->child(1)->childCount(), 0);
+}
+
+TEST_F(ExplorerObserverTest, ExplorerObserver_subTreeInvalidate)
+{
+    const auto pseudoRoot = _testExplorer->treeModel()->root()->child(0);
+
+    ASSERT_EQ(pseudoRoot->childCount(), 3);
+
+    // Keep track of current children, to make sure those are kept, and not re-created.
+    const auto c1 = pseudoRoot->child(0);
+    const auto c2 = pseudoRoot->child(1);
+    const auto c3 = pseudoRoot->child(2);
+
+    // Build a brand new subtree under A1.
+    auto fooPath = UfeUiTest::getUfePath("/root/A1/foo");
+    auto barPath = UfeUiTest::getUfePath("/root/A1/foo/bar");
+    auto bazPath = UfeUiTest::getUfePath("/root/A1/foo/baz");
+
+    UfeUiTest::TestHierarchy::clearChildren(UfeUiTest::TestHierarchy::A1);
+    UfeUiTest::TestHierarchy::addChild(UfeUiTest::TestHierarchy::A1, fooPath);
+    UfeUiTest::TestHierarchy::addChild(fooPath, barPath);
+    UfeUiTest::TestHierarchy::addChild(fooPath, bazPath);
+
+    Ufe::Scene::instance().notify(
+        Ufe::SubtreeInvalidate { Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::A1) });
+
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::A1).isValid());
+
+    // Previous subtree is gone.
+    ASSERT_FALSE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::B1).isValid());
+    ASSERT_FALSE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::B2).isValid());
+    ASSERT_FALSE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::C1).isValid());
+    ASSERT_FALSE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::C2).isValid());
+
+    // New subtree!
+    ASSERT_TRUE(_testExplorer->treeModel()->getIndexFromPath(fooPath).isValid());
+    ASSERT_TRUE(_testExplorer->treeModel()->getIndexFromPath(barPath).isValid());
+    ASSERT_TRUE(_testExplorer->treeModel()->getIndexFromPath(bazPath).isValid());
+
+    EXPECT_EQ(c1, pseudoRoot->child(0));
+    EXPECT_EQ(c2, pseudoRoot->child(1));
+    EXPECT_EQ(c3, pseudoRoot->child(2));
+
+    // Change it back!
+    UfeUiTest::TestHierarchy::resetTestHierarchy();
+    Ufe::Scene::instance().notify(
+        Ufe::SubtreeInvalidate { Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::A1) });
+
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::A1).isValid());
+
+    // Base test subtree is back.
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::B1).isValid());
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::B2).isValid());
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::C1).isValid());
+    ASSERT_TRUE(
+        _testExplorer->treeModel()->getIndexFromPath(UfeUiTest::TestHierarchy::C2).isValid());
+
+    ASSERT_FALSE(_testExplorer->treeModel()->getIndexFromPath(fooPath).isValid());
+    ASSERT_FALSE(_testExplorer->treeModel()->getIndexFromPath(barPath).isValid());
+    ASSERT_FALSE(_testExplorer->treeModel()->getIndexFromPath(bazPath).isValid());
+
+    EXPECT_EQ(c1, pseudoRoot->child(0));
+    EXPECT_EQ(c2, pseudoRoot->child(1));
+    EXPECT_EQ(c3, pseudoRoot->child(2));
+}
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUi.standardTreeColumns.test.cpp b/src/UFEUI/Tests/ufeUi.standardTreeColumns.test.cpp
new file mode 100644
index 0000000..605aa1b
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.standardTreeColumns.test.cpp
@@ -0,0 +1,210 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/standardTreeColumns.h>
+#include <UFEUI/treeModel.h>
+
+#include <QtGui/qicon.h>
+#include <gtest/gtest.h>
+
+class StandardColumnsTest : public UfeUiBaseTest
+{
+};
+
+TEST_F(StandardColumnsTest, TreeColumn_visIndex)
+{
+    const VisColumn col { 99 };
+    ASSERT_EQ(99, col.visualIndex());
+    const VisColumn col1 { 0 };
+    ASSERT_EQ(0, col1.visualIndex());
+}
+
+// Vis column tests.
+TEST_F(StandardColumnsTest, VisColumn_header)
+{
+    const VisColumn col { 0 };
+    QIcon           visible { ":/ufe/Icons/visible.png" };
+    ASSERT_TRUE(UfeUiTest::areIconsEqual(
+        visible, qvariant_cast<QIcon>(col.columnHeader(Qt::DecorationRole))));
+}
+
+TEST_F(StandardColumnsTest, VisColumn_data)
+{
+    const VisColumn col { 0 };
+
+    const auto model = UfeUiTest::createEmptyModel();
+    const auto a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    const auto b1 = a1->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::B1));
+
+    // No text, only an Icon.
+    EXPECT_EQ(QVariant {}, col.data(a1.get(), Qt::DisplayRole));
+
+    // There are tree possible icons used :
+    const QIcon hiddenInherit = QIcon { ":/ufe/Icons/hiddenInherit.png" };
+    ;
+    const QIcon hidden = QIcon { ":/ufe/Icons/hidden.png" };
+    const QIcon visibleInherit = QIcon { ":/ufe/Icons/visibleInherit.png" };
+
+    // Both a1 and b1 are visible.
+
+    ASSERT_TRUE(UfeUiTest::areIconsEqual(
+        visibleInherit, qvariant_cast<QIcon>(col.data(a1.get(), Qt::DecorationRole))));
+    ASSERT_TRUE(UfeUiTest::areIconsEqual(
+        visibleInherit, qvariant_cast<QIcon>(col.data(b1, Qt::DecorationRole))));
+    // Hide a1, now a1 is invisible, and b1 inherits.
+    Ufe::Object3d::object3d(a1->sceneItem())->setVisibility(false);
+    ASSERT_TRUE(UfeUiTest::areIconsEqual(
+        hidden, qvariant_cast<QIcon>(col.data(a1.get(), Qt::DecorationRole))));
+    ASSERT_TRUE(UfeUiTest::areIconsEqual(
+        hiddenInherit, qvariant_cast<QIcon>(col.data(b1, Qt::DecorationRole))));
+
+    const auto testItem = std::dynamic_pointer_cast<UfeUiTest::TestSceneItem>(a1->sceneItem());
+    testItem->setHideable(false);
+    ASSERT_EQ(QVariant {}, col.data(a1.get(), Qt::DecorationRole));
+}
+TEST_F(StandardColumnsTest, VisColumn_setData)
+{
+    VisColumn  col { 0 };
+    const auto model = UfeUiTest::createEmptyModel();
+    const auto a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+
+    // Set data not doing anything.
+    EXPECT_FALSE(col.setData(a1.get(), QString("foo"), Qt::DisplayRole));
+    EXPECT_FALSE(col.setData(a1.get(), Qt::Checked, Qt::CheckStateRole));
+}
+
+TEST_F(StandardColumnsTest, VisColumn_flags)
+{
+    VisColumn     col { 0 };
+    const auto    model = UfeUiTest::createEmptyModel();
+    const auto    a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    Qt::ItemFlags flags;
+    col.flags(a1.get(), flags);
+    // No special flags.
+    EXPECT_EQ(Qt::ItemFlags {}, flags);
+}
+
+// Name column tests.
+TEST_F(StandardColumnsTest, NameColumn_header)
+{
+    const NameColumn col { 0 };
+    ASSERT_EQ(QObject::tr("Prim Name"), col.columnHeader(Qt::DisplayRole));
+}
+
+TEST_F(StandardColumnsTest, NameColumn_data)
+{
+    const NameColumn col { 0 };
+    const auto       model = UfeUiTest::createEmptyModel();
+    const auto       a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(QString("A1"), col.data(a1.get(), Qt::DisplayRole));
+    // Other roles, nothing.
+    EXPECT_EQ(QVariant {}, col.data(a1.get(), Qt::CheckStateRole));
+}
+
+TEST_F(StandardColumnsTest, NameColumn_rootAlias)
+{
+    const NameColumn col { "foo", 0 };
+    const auto       model = UfeUiTest::createEmptyModel();
+
+    const auto dummRoot = UfeUiTest::createTreeItem(model.get(), {});
+    const auto a1 = dummRoot->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::A1));
+    const auto b1 = a1->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::B1));
+    EXPECT_EQ(QString("foo"), col.data(a1, Qt::DisplayRole));
+    EXPECT_EQ(QString("B1"), col.data(b1, Qt::DisplayRole));
+}
+
+TEST_F(StandardColumnsTest, NameColumn_setData)
+{
+    NameColumn col { 0 };
+    const auto model = UfeUiTest::createEmptyModel();
+    const auto a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    // Set data not doing anything.
+    EXPECT_FALSE(col.setData(a1.get(), QString("foo"), Qt::DisplayRole));
+    EXPECT_FALSE(col.setData(a1.get(), Qt::Checked, Qt::CheckStateRole));
+}
+
+TEST_F(StandardColumnsTest, NameColumn_flags)
+{
+    NameColumn    col { 0 };
+    const auto    model = UfeUiTest::createEmptyModel();
+    const auto    a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    Qt::ItemFlags flags;
+    col.flags(a1.get(), flags);
+    // No special flags.
+    EXPECT_EQ(Qt::ItemFlags {}, flags);
+}
+
+// Type column tests.
+TEST_F(StandardColumnsTest, TypeColumn_header)
+{
+    const TypeColumn col { 0 };
+    ASSERT_EQ(QObject::tr("Type"), col.columnHeader(Qt::DisplayRole));
+}
+
+TEST_F(StandardColumnsTest, TypeColumn_data)
+{
+    const TypeColumn col { 0 };
+    const auto       model = UfeUiTest::createEmptyModel();
+    const auto       a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(QString("TestSceneItemType"), col.data(a1.get(), Qt::DisplayRole));
+    // Other roles, nothing.
+    EXPECT_EQ(QVariant {}, col.data(a1.get(), Qt::CheckStateRole));
+}
+
+TEST_F(StandardColumnsTest, TypeColumn_setData)
+{
+    TypeColumn col { 0 };
+    const auto model = UfeUiTest::createEmptyModel();
+    const auto a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    // Set data not doing anything.
+    EXPECT_FALSE(col.setData(a1.get(), QString("foo"), Qt::DisplayRole));
+    EXPECT_FALSE(col.setData(a1.get(), Qt::Checked, Qt::CheckStateRole));
+}
+
+TEST_F(StandardColumnsTest, VisColumn_clickEvents)
+{
+    VisColumn  col { 0 };
+    const auto model = UfeUiTest::createEmptyModel();
+    const auto a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+
+    // Clicks.
+    EXPECT_TRUE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+    col.clicked(a1.get());
+    EXPECT_FALSE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+    col.clicked(a1.get());
+    EXPECT_TRUE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+
+    // Double clicks act as click.
+    EXPECT_TRUE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+    col.clicked(a1.get());
+    EXPECT_FALSE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+    col.doubleClicked(a1.get()); // Double click will come after a click.
+    EXPECT_TRUE(Ufe::Object3d::object3d(a1->sceneItem())->visibility());
+}
+
+TEST_F(StandardColumnsTest, TypeColumn_flags)
+{
+    TypeColumn    col { 0 };
+    const auto    model = UfeUiTest::createEmptyModel();
+    const auto    a1 = UfeUiTest::createTreeItem(model.get(), UfeUiTest::TestHierarchy::A1);
+    Qt::ItemFlags flags;
+    col.flags(a1.get(), flags);
+    // No special flags.
+    EXPECT_EQ(Qt::ItemFlags {}, flags);
+}
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUi.treeItem.test.cpp b/src/UFEUI/Tests/ufeUi.treeItem.test.cpp
new file mode 100644
index 0000000..56cc7bc
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.treeItem.test.cpp
@@ -0,0 +1,203 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/treeItem.h>
+#include <UFEUI/treeModel.h>
+
+#include <ufe/hierarchy.h>
+#include <ufe/subject.h>
+
+#include <gtest/gtest.h>
+
+class TreeItemTest : public UfeUiBaseTest
+{
+};
+
+TEST_F(TreeItemTest, TreeItem_parenting)
+{
+    auto treeModel = UfeUiTest::createEmptyModel();
+
+    UfeUi::TreeItem root { treeModel.get(),
+                           Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root")) };
+
+    EXPECT_EQ(0, root.childCount());
+
+    auto child1
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1")));
+    EXPECT_EQ(&root, child1->parentItem());
+    auto child2
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child2")));
+    EXPECT_EQ(&root, child2->parentItem());
+    auto child3
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child3")));
+    EXPECT_EQ(&root, child3->parentItem());
+
+    auto subChild1 = child1->appendChild(
+        Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1/subChild1")));
+    EXPECT_EQ(child1, subChild1->parentItem());
+    auto subChild2 = child1->appendChild(
+        Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1/subChild2")));
+    EXPECT_EQ(child1, subChild2->parentItem());
+
+    EXPECT_EQ(3, root.childCount());
+    EXPECT_EQ(2, child1->childCount());
+
+    EXPECT_EQ(nullptr, root.child(-1));
+    EXPECT_EQ(child1, root.child(0));
+    EXPECT_EQ(child2, root.child(1));
+    EXPECT_EQ(child3, root.child(2));
+    EXPECT_EQ(nullptr, root.child(3));
+
+    EXPECT_EQ(subChild1, child1->child(0));
+    EXPECT_EQ(subChild2, child1->child(1));
+
+    root.removeChild(child2);
+    child1->removeChild(subChild1);
+
+    EXPECT_EQ(2, root.childCount());
+    EXPECT_EQ(1, child1->childCount());
+
+    // No longer there, noop.
+    root.removeChild(child2);
+    EXPECT_EQ(2, root.childCount());
+
+    root.clearChildren();
+    EXPECT_EQ(0, root.childCount());
+}
+
+TEST_F(TreeItemTest, TreeItem_row)
+{
+    const auto treeModel = UfeUiTest::createEmptyModel();
+
+    UfeUi::TreeItem root { treeModel.get(),
+                           Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root")) };
+    EXPECT_EQ(0, root.row());
+
+    const auto child1
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1")));
+    EXPECT_EQ(0, child1->row());
+    const auto child2
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child2")));
+    EXPECT_EQ(1, child2->row());
+    const auto child3
+        = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child3")));
+    EXPECT_EQ(2, child3->row());
+
+    const auto subChild1 = child1->appendChild(
+        Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1/subChild1")));
+    EXPECT_EQ(0, subChild1->row());
+    const auto subChild2 = child1->appendChild(
+        Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/child1/subChild2")));
+    EXPECT_EQ(1, subChild2->row());
+
+    root.removeChild(child1);
+    EXPECT_EQ(0, child2->row());
+    EXPECT_EQ(1, child3->row());
+}
+TEST_F(TreeItemTest, TreeItem_disabled)
+{
+    const auto treeModel = UfeUiTest::createEmptyModel();
+
+    UfeUi::TreeItem root { treeModel.get(),
+                           Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root")) };
+
+    auto A1 = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A1")));
+    auto A2 = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A2")));
+    auto A3 = root.appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A3")));
+
+    auto B1 = A1->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A1/B1")));
+    auto B2 = A1->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A1/B2")));
+
+    auto C1 = B2->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A1/B2/C1")));
+    auto C2 = B2->appendChild(Ufe::Hierarchy::createItem(UfeUiTest::getUfePath("/root/A1/B2/C2")));
+
+    auto checkHidden = [](const std::vector<UfeUi::TreeItem*>& items, bool value) {
+        for (const auto& item : items) {
+            EXPECT_EQ(!item->computedVisibility(), value);
+        }
+    };
+
+    // Starting point, all visible.
+    checkHidden({ &root, A1, A2, A3, B1, B2, C1, C2 }, false);
+    // Invis top level item, which should hide everything.
+    Ufe::Object3d::object3d(root.sceneItem())->setVisibility(false);
+    // Still all visible, via caching.
+    checkHidden({ &root, A1, A2, A3, B1, B2, C1, C2 }, false);
+    // Clear the cache (propagates down)
+    root.clearStateCache();
+    // Check again, all hidden now.
+    checkHidden({ &root, A1, A2, A3, B1, B2, C1, C2 }, true);
+
+    // Show again the root, and test inv in the middle of the hierarchy.
+    Ufe::Object3d::object3d(root.sceneItem())->setVisibility(true);
+    Ufe::Object3d::object3d(B2->sceneItem())->setVisibility(false);
+    root.clearStateCache();
+    checkHidden({ B2, C1, C2 }, true);
+    checkHidden({ &root, A1, A2, B1 }, false);
+    // Changing the vis of C1 has no effect, value is inherited.
+    C1->clearStateCache();
+    Ufe::Object3d::object3d(C1->sceneItem())->setVisibility(true);
+    checkHidden({ C1 }, true);
+    // Change B2 again, values are still cached at it's level
+    Ufe::Object3d::object3d(B2->sceneItem())->setVisibility(true);
+    checkHidden({ B2, C1, C2 }, true);
+    checkHidden({ &root, A1, A2, B1 }, false);
+    B2->clearStateCache();
+    // All visible now.
+    checkHidden({ &root, A1, A2, A3, B1, B2, C1, C2 }, false);
+
+    // Test a with a leaf item.
+    Ufe::Object3d::object3d(C1->sceneItem())->setVisibility(false);
+    // Still on cached values.
+    checkHidden({ &root, A1, A2, A3, B1, B2, C1, C2 }, false);
+    C1->clearStateCache();
+    checkHidden({ C1 }, true);
+    checkHidden({ &root, A1, A2, A3, B1, B2, C2 }, false);
+}
+TEST_F(TreeItemTest, TreeItem_findDescendants)
+{
+    const auto                  model = UfeUi::TreeModel::create({}, nullptr);
+    Ufe::Hierarchy::ChildFilter childFilter;
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        "",
+        {},
+        childFilter,
+        false);
+    const auto root = model->root();
+
+    const auto none = root->findDescendants([](const UfeUi::TreeItem* item) { return false; });
+    EXPECT_TRUE(none.empty());
+
+    const auto all = root->findDescendants([](const UfeUi::TreeItem* item) { return true; });
+    EXPECT_EQ(7, all.size());
+
+    const auto containsA = root->findDescendants([](const UfeUi::TreeItem* item) {
+        return item->sceneItem()->path().string().find("A1") != std::string::npos;
+    });
+    // A1 + all children
+    EXPECT_EQ(5, containsA.size());
+
+    // Not found, the search is stopped at items returning false.
+    const auto containsB = root->findDescendants([](const UfeUi::TreeItem* item) {
+        return item->sceneItem()->path().string().find("B") != std::string::npos;
+    });
+    EXPECT_EQ(0, containsB.size());
+}
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUi.treeModel.test.cpp b/src/UFEUI/Tests/ufeUi.treeModel.test.cpp
new file mode 100644
index 0000000..2d5056c
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.treeModel.test.cpp
@@ -0,0 +1,464 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/treeitem.h>
+
+#include <QtGui/qpalette.h>
+#include <QtWidgets/qapplication.h>
+#include <gtest/gtest.h>
+
+class TreeModelTest : public UfeUiBaseTest
+{
+};
+
+TEST_F(TreeModelTest, TreeModel_createFromRoot)
+{
+    UfeUi::TreeColumns columns;
+    columns.push_back(std::make_shared<UfeUiTest::TestColumn>(0));
+
+    UfeUi::TypeFilter           typeFilter;
+    Ufe::Hierarchy::ChildFilter childFilter;
+
+    bool       includeRoot = true;
+    const auto modelWithRoot = UfeUi::TreeModel::create(columns, nullptr);
+    modelWithRoot->buildTreeFrom(
+        modelWithRoot->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        "",
+        typeFilter,
+        childFilter,
+        includeRoot);
+
+    auto treeItemRoot = modelWithRoot->root();
+
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::root);
+
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 3);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->sceneItem()->path(), UfeUiTest::TestHierarchy::A2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(2)->sceneItem()->path(), UfeUiTest::TestHierarchy::A3);
+
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 2);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(0)->child(0)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(0)->child(1)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::B2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(2)->childCount(), 0);
+
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(1)->childCount(), 2);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(0)->child(1)->child(0)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::C1);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(0)->child(1)->child(1)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::C2);
+
+    includeRoot = false;
+    const auto modelWithoutRoot = UfeUi::TreeModel::create(columns, nullptr);
+    modelWithoutRoot->buildTreeFrom(
+        modelWithoutRoot->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        "",
+        typeFilter,
+        childFilter,
+        includeRoot);
+    treeItemRoot = modelWithoutRoot->root();
+
+    EXPECT_EQ(modelWithoutRoot->root()->sceneItem(), nullptr);
+    EXPECT_EQ(modelWithoutRoot->root()->childCount(), 3);
+
+    EXPECT_EQ(treeItemRoot->childCount(), 3);
+    EXPECT_EQ(treeItemRoot->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(treeItemRoot->child(1)->sceneItem()->path(), UfeUiTest::TestHierarchy::A2);
+    EXPECT_EQ(treeItemRoot->child(2)->sceneItem()->path(), UfeUiTest::TestHierarchy::A3);
+
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->sceneItem()->path(), UfeUiTest::TestHierarchy::B2);
+    EXPECT_EQ(treeItemRoot->child(1)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(2)->childCount(), 0);
+
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 0);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->childCount(), 2);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(1)->child(0)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::C1);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(1)->child(1)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::C2);
+}
+TEST_F(TreeModelTest, TreeModel_createFromSearch)
+{
+    UfeUi::TreeColumns columns;
+    columns.push_back(std::make_shared<UfeUiTest::TestColumn>(0));
+    UfeUi::TypeFilter           typeFilter;
+    Ufe::Hierarchy::ChildFilter childFilter;
+    // Search "1".
+
+    // Should get A1, B1, C1 from search.
+    // We should also get B2, as it is the parent of C1.
+    auto search = "1";
+
+    auto model = UfeUi::TreeModel::create(columns, nullptr);
+
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        search,
+        typeFilter,
+        childFilter,
+        false);
+    auto rootItem = model->root();
+
+    EXPECT_EQ(rootItem->childCount(), 1);
+    EXPECT_EQ(rootItem->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(rootItem->child(0)->childCount(), 2);
+    EXPECT_EQ(rootItem->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(rootItem->child(0)->child(1)->sceneItem()->path(), UfeUiTest::TestHierarchy::B2);
+    EXPECT_EQ(rootItem->child(0)->child(0)->childCount(), 0);
+    EXPECT_EQ(rootItem->child(0)->child(1)->childCount(), 1);
+    EXPECT_EQ(
+        rootItem->child(0)->child(1)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::C1);
+
+    // Search "C2"
+    // Should C2 and its hierarchy, A1 & B2
+    search = "C2";
+    model = UfeUi::TreeModel::create(columns, nullptr);
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        search,
+        typeFilter,
+        childFilter,
+        false);
+    rootItem = model->root();
+
+    EXPECT_EQ(rootItem->childCount(), 1);
+    EXPECT_EQ(rootItem->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(rootItem->child(0)->childCount(), 1);
+    EXPECT_EQ(rootItem->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::B2);
+    EXPECT_EQ(rootItem->child(0)->child(0)->childCount(), 1);
+    EXPECT_EQ(
+        rootItem->child(0)->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::C2);
+
+    // Search "a1"
+    // Should only get the top level item.
+    search = "a1";
+    model = UfeUi::TreeModel::create(columns, nullptr);
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        search,
+        typeFilter,
+        childFilter,
+        false);
+    rootItem = model->root();
+    EXPECT_EQ(rootItem->childCount(), 1);
+    EXPECT_EQ(rootItem->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(rootItem->child(0)->childCount(), 0);
+}
+
+std::unique_ptr<UfeUi::TreeModel> buildSimpleModel()
+{
+    UfeUiTest::TestHierarchy::resetTestHierarchy();
+    UfeUi::TreeColumns columns;
+    columns.push_back(std::make_shared<UfeUiTest::TestColumn>(0));
+    columns.push_back(std::make_shared<UfeUiTest::TestColumn>(1));
+    const UfeUi::TypeFilter     typeFilter;
+    Ufe::Hierarchy::ChildFilter childFilter;
+    auto                        model = UfeUi::TreeModel::create(columns, nullptr);
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        "",
+        typeFilter,
+        childFilter,
+        false);
+    return model;
+}
+TEST_F(TreeModelTest, TreeModel_getIndex)
+{
+    auto model = buildSimpleModel();
+
+    // Root Not included in the model, query should return an invalid index.
+    const auto idxRoot = model->getIndexFromPath(UfeUiTest::TestHierarchy::root);
+    EXPECT_FALSE(idxRoot.parent().isValid());
+
+    // Non-sensical path
+    const auto badIdx = model->getIndexFromPath(UfeUiTest::getUfePath("/foo/bar"));
+    EXPECT_FALSE(badIdx.parent().isValid());
+
+    const auto idxA1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(idxA1.row(), 0);
+    EXPECT_EQ(idxA1.column(), 0);
+    EXPECT_FALSE(idxA1.parent().isValid());
+
+    const auto idxA2 = model->getIndexFromPath(UfeUiTest::TestHierarchy::A2);
+    EXPECT_EQ(idxA2.row(), 1);
+    EXPECT_EQ(idxA2.column(), 0);
+    EXPECT_FALSE(idxA2.parent().isValid());
+
+    const auto idxA3 = model->getIndexFromPath(UfeUiTest::TestHierarchy::A3);
+    EXPECT_EQ(idxA3.row(), 2);
+    EXPECT_EQ(idxA3.column(), 0);
+    EXPECT_FALSE(idxA3.parent().isValid());
+
+    const auto idxB1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(idxB1.row(), 0);
+    EXPECT_EQ(idxB1.column(), 0);
+    EXPECT_EQ(idxB1.parent(), idxA1);
+
+    const auto idxB2 = model->getIndexFromPath(UfeUiTest::TestHierarchy::B2);
+    EXPECT_EQ(idxB2.row(), 1);
+    EXPECT_EQ(idxB2.column(), 0);
+    EXPECT_EQ(idxB2.parent(), idxA1);
+
+    const auto idxC1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::C1);
+    EXPECT_EQ(idxC1.row(), 0);
+    EXPECT_EQ(idxC1.column(), 0);
+    EXPECT_EQ(idxC1.parent(), idxB2);
+
+    const auto idxC2 = model->getIndexFromPath(UfeUiTest::TestHierarchy::C2);
+    EXPECT_EQ(idxC2.row(), 1);
+    EXPECT_EQ(idxC2.column(), 0);
+    EXPECT_EQ(idxC2.parent(), idxB2);
+}
+
+TEST_F(TreeModelTest, TreeModel_dataGetSet)
+{
+    const auto model = buildSimpleModel();
+
+    const auto B1FirstColumn = model->getIndexFromPath(UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(
+        UfeUiTest::TestColumn::DefaultCheckStateData,
+        model->data(B1FirstColumn, static_cast<int>(Qt::CheckStateRole)));
+    EXPECT_EQ(
+        UfeUiTest::TestColumn::DefaultDisplayData,
+        model->data(B1FirstColumn, static_cast<int>(Qt::DisplayRole)));
+    const auto newDisplay1 = QString("Test1");
+    const auto newCheckState1 = Qt::CheckState::Unchecked;
+    EXPECT_TRUE(model->setData(B1FirstColumn, newDisplay1, Qt::DisplayRole));
+    EXPECT_TRUE(model->setData(B1FirstColumn, newCheckState1, Qt::CheckStateRole));
+    EXPECT_EQ(newCheckState1, model->data(B1FirstColumn, static_cast<int>(Qt::CheckStateRole)));
+    EXPECT_EQ(newDisplay1, model->data(B1FirstColumn, static_cast<int>(Qt::DisplayRole)));
+
+    const auto B1SecondColumn
+        = model->index(B1FirstColumn.row(), B1FirstColumn.column() + 1, B1FirstColumn.parent());
+    EXPECT_EQ(
+        UfeUiTest::TestColumn::DefaultCheckStateData,
+        model->data(B1SecondColumn, static_cast<int>(Qt::CheckStateRole)));
+    EXPECT_EQ(
+        UfeUiTest::TestColumn::DefaultDisplayData,
+        model->data(B1SecondColumn, static_cast<int>(Qt::DisplayRole)));
+    const auto newDisplay2 = QString("Test2");
+    const auto newCheckState2 = Qt::CheckState::Unchecked;
+    EXPECT_TRUE(model->setData(B1SecondColumn, newDisplay2, Qt::DisplayRole));
+    EXPECT_TRUE(model->setData(B1SecondColumn, newCheckState2, Qt::CheckStateRole));
+    EXPECT_EQ(newCheckState2, model->data(B1SecondColumn, static_cast<int>(Qt::CheckStateRole)));
+    EXPECT_EQ(newDisplay2, model->data(B1SecondColumn, static_cast<int>(Qt::DisplayRole)));
+
+    // Get with invalid index should an empty QVariant.
+
+    // Get with our of range column should an empty QVariant.
+    EXPECT_EQ(QVariant {}, model->data(QModelIndex {}, Qt::CheckStateRole));
+    EXPECT_EQ(QVariant {}, model->data(QModelIndex {}, Qt::DisplayRole));
+
+    const auto oorCol = model->index(0, -10, B1FirstColumn.parent());
+    const auto oorCol2 = model->index(0, 10, B1FirstColumn.parent());
+    EXPECT_EQ(QVariant {}, model->data(oorCol, Qt::CheckStateRole));
+    EXPECT_EQ(QVariant {}, model->data(oorCol2, Qt::DisplayRole));
+
+    // Set with invalid index should return false
+    EXPECT_FALSE(model->setData(QModelIndex {}, newDisplay1, Qt::DisplayRole));
+    EXPECT_FALSE(model->setData(QModelIndex {}, newCheckState1, Qt::CheckStateRole));
+    // Set with out of range column should false
+    EXPECT_FALSE(model->setData(oorCol, newDisplay1, Qt::DisplayRole));
+    EXPECT_FALSE(model->setData(oorCol2, newCheckState1, Qt::CheckStateRole));
+}
+TEST_F(TreeModelTest, TreeModel_dataDisabledForeground)
+{
+    const auto model = buildSimpleModel();
+
+    const auto idxA1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::A1);
+    const auto idxB1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::B1);
+
+    const auto item = model->treeItem(idxB1);
+    Ufe::Object3d::object3d(item->sceneItem())->setVisibility(false);
+
+    EXPECT_EQ(QVariant {}, model->data(idxA1, Qt::ForegroundRole));
+
+    const auto disabledStyle
+        = QVariant { QApplication::palette().color(QPalette::Disabled, QPalette::WindowText) };
+    EXPECT_EQ(disabledStyle, model->data(idxB1, Qt::ForegroundRole));
+}
+TEST_F(TreeModelTest, TreeModel_flags)
+{
+    const auto model = buildSimpleModel();
+
+    // Happy path
+    const auto C1IdxCol1 = model->getIndexFromPath(UfeUiTest::TestHierarchy::C1);
+
+    const auto flags1 = model->flags(C1IdxCol1);
+    EXPECT_TRUE(flags1.testFlag(Qt::ItemIsUserCheckable));
+    EXPECT_FALSE(flags1.testFlag(Qt::ItemIsEnabled));
+
+    const auto C1IdxCol2
+        = model->index(C1IdxCol1.row(), C1IdxCol1.column() + 1, C1IdxCol1.parent());
+    const auto flags2 = model->flags(C1IdxCol2);
+    EXPECT_FALSE(flags2.testFlag(Qt::ItemIsUserCheckable));
+    EXPECT_TRUE(flags2.testFlag(Qt::ItemIsEnabled));
+
+    // No flags on invalid index.
+    EXPECT_EQ(Qt::NoItemFlags, model->flags(QModelIndex {}));
+
+    // No flags on out-of-range column
+    const auto oorCol1 = model->index(C1IdxCol1.row(), -10, C1IdxCol1.parent());
+    const auto oorCol2 = model->index(C1IdxCol1.row(), 10, C1IdxCol1.parent());
+    EXPECT_EQ(Qt::NoItemFlags, model->flags(oorCol1));
+    EXPECT_EQ(Qt::NoItemFlags, model->flags(oorCol2));
+}
+
+TEST_F(TreeModelTest, TreeModel_parent)
+{
+    const auto model = buildSimpleModel();
+
+    // Happy path
+    const auto C1Idx = model->getIndexFromPath(UfeUiTest::TestHierarchy::C1);
+    const auto parentC1 = model->parent(C1Idx);
+    EXPECT_TRUE(parentC1.isValid());
+    EXPECT_EQ(1, parentC1.row());
+    EXPECT_EQ(0, parentC1.column());
+
+    // Parent of invalid
+    const auto parentOfInvalid = model->parent(QModelIndex {});
+    EXPECT_FALSE(parentOfInvalid.isValid());
+
+    // A1 is at the root, no parent
+    const auto A1Idx = model->getIndexFromPath(UfeUiTest::TestHierarchy::A1);
+    const auto rootParentIdx = model->parent(A1Idx);
+    EXPECT_FALSE(rootParentIdx.isValid());
+}
+
+TEST_F(TreeModelTest, TreeModel_roRowColCount)
+{
+    const auto model = buildSimpleModel();
+
+    // Happy path
+    const auto C1Idx = model->getIndexFromPath(UfeUiTest::TestHierarchy::C1);
+    EXPECT_EQ(2, model->rowCount(C1Idx.parent()));
+    EXPECT_EQ(2, model->columnCount(C1Idx.parent())); // Constant
+
+    // Invalid parent passed (at the root)
+    EXPECT_EQ(3, model->rowCount(QModelIndex {}));
+    EXPECT_EQ(2, model->columnCount(QModelIndex {})); // Constant
+
+    // Non-zero column...invalid request.
+    const auto noneZeroCol = model->index(C1Idx.row(), 1, C1Idx.parent());
+    EXPECT_EQ(0, model->rowCount(noneZeroCol));
+    EXPECT_EQ(2, model->columnCount(noneZeroCol)); // Constant
+}
+
+TEST_F(TreeModelTest, TreeModel_headerData)
+{
+    // Happy path
+    const auto model = buildSimpleModel();
+    EXPECT_EQ(QString("TestColumnHeader0"), model->headerData(0, Qt::Horizontal, Qt::DisplayRole));
+    EXPECT_EQ(QString("TestColumnHeader1"), model->headerData(1, Qt::Horizontal, Qt::DisplayRole));
+
+    // Model has 2 columns, only secion 0-1 should work.
+    EXPECT_EQ(QVariant {}, model->headerData(-1, Qt::Horizontal, Qt::DisplayRole));
+    EXPECT_EQ(QVariant {}, model->headerData(2, Qt::Horizontal, Qt::DisplayRole));
+
+    // Only Horizontal / DisplayRole is implemented.
+    EXPECT_EQ(QVariant {}, model->headerData(0, Qt::Vertical, Qt::DisplayRole));
+    EXPECT_EQ(QVariant {}, model->headerData(0, Qt::Vertical, Qt::DisplayRole));
+    EXPECT_EQ(QVariant {}, model->headerData(0, Qt::Horizontal, Qt::CheckStateRole));
+    EXPECT_EQ(QVariant {}, model->headerData(0, Qt::Horizontal, Qt::CheckStateRole));
+}
+
+TEST_F(TreeModelTest, TreeModel_treeItem)
+{
+    const auto model = buildSimpleModel();
+    const auto a1Idx = model->getIndexFromPath(UfeUiTest::TestHierarchy::A1);
+    const auto a1Item = model->treeItem(a1Idx);
+    ASSERT_NE(nullptr, a1Item);
+    EXPECT_EQ(UfeUiTest::TestHierarchy::A1, a1Item->sceneItem()->path());
+
+    const auto notAnItem = model->treeItem(QModelIndex());
+    EXPECT_EQ(nullptr, notAnItem);
+}
+
+TEST_F(TreeModelTest, TreeModel_update)
+{
+    const auto model = buildSimpleModel();
+
+    const auto idx = model->getIndexFromPath(UfeUiTest::TestHierarchy::A1);
+
+    const auto item = model->treeItem(idx);
+
+    EXPECT_TRUE(item->computedVisibility());
+    Ufe::Object3d::object3d(item->sceneItem())->setVisibility(false);
+
+    EXPECT_TRUE(item->computedVisibility());
+    model->update(item->sceneItem()->path());
+    EXPECT_FALSE(item->computedVisibility());
+
+    // Noop.
+    model->update(Ufe::Path {});
+}
+
+TEST_F(TreeModelTest, TreeModel_childFilter)
+{
+    UfeUi::TreeColumns columns;
+    columns.push_back(std::make_shared<UfeUiTest::TestColumn>(0));
+
+    UfeUi::TypeFilter typeFilter;
+
+    const auto childFilter = UfeUiTest::TestHierarchy::childFilter();
+
+    bool       includeRoot = true;
+    const auto model = UfeUi::TreeModel::create(columns, nullptr);
+    model->buildTreeFrom(
+        model->root(),
+        Ufe::Hierarchy::createItem(UfeUiTest::TestHierarchy::root),
+        "",
+        typeFilter,
+        childFilter,
+        includeRoot);
+
+    auto treeItemRoot = model->root();
+
+    EXPECT_EQ(treeItemRoot->sceneItem(), nullptr);
+    EXPECT_EQ(treeItemRoot->childCount(), 1);
+    EXPECT_EQ(treeItemRoot->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::root);
+    EXPECT_EQ(treeItemRoot->child(0)->childCount(), 2);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->sceneItem()->path(), UfeUiTest::TestHierarchy::A1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(1)->sceneItem()->path(), UfeUiTest::TestHierarchy::A3);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->childCount(), 1);
+    EXPECT_EQ(
+        treeItemRoot->child(0)->child(0)->child(0)->sceneItem()->path(),
+        UfeUiTest::TestHierarchy::B1);
+    EXPECT_EQ(treeItemRoot->child(0)->child(0)->child(0)->childCount(), 0);
+}
diff --git a/src/UFEUI/Tests/ufeUi.utils.test.cpp b/src/UFEUI/Tests/ufeUi.utils.test.cpp
new file mode 100644
index 0000000..cd78b2d
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUi.utils.test.cpp
@@ -0,0 +1,166 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "testUfeRuntime.h"
+#include "ufeUiTestBase.h"
+#include "utils.h"
+
+#include <UFEUI/utils.h>
+
+#include <ufe/hierarchy.h>
+#include <ufe/path.h>
+#include <ufe/selection.h>
+
+#include <gtest/gtest.h>
+
+TEST(UtilsTest, SelectionsAreEquivalent_Empty_Both)
+{
+    Ufe::Selection a, b;
+    EXPECT_EQ(a.empty(), true);
+    EXPECT_EQ(b.empty(), true);
+
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Empty_First)
+{
+    Ufe::Selection a, b;
+    EXPECT_TRUE(
+        b.append(Ufe::Hierarchy::createItem(Ufe::Path::Path(Ufe::PathSegment("test_01", 1, '/')))));
+
+    EXPECT_FALSE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Empty_Second)
+{
+    Ufe::Selection a, b;
+    EXPECT_TRUE(
+        a.append(Ufe::Hierarchy::createItem(Ufe::Path::Path(Ufe::PathSegment("test_01", 1, '/')))));
+
+    EXPECT_FALSE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Identical_Ptrs)
+{
+    Ufe::Selection a, b;
+
+    auto ptr = Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')));
+    EXPECT_TRUE(a.append(ptr));
+    EXPECT_TRUE(b.append(ptr));
+
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Identical_Paths)
+{
+    Ufe::Selection a, b;
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')))));
+
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Identical_Paths_Different_Order)
+{
+    Ufe::Selection a, b;
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')))));
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')))));
+
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Different_Paths)
+{
+    Ufe::Selection a, b;
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+
+    EXPECT_FALSE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Identical_Ptrs_Paths_Mixed)
+{
+    Ufe::Selection a, b;
+
+    auto ptr = Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')));
+    EXPECT_TRUE(a.append(ptr));
+    EXPECT_TRUE(b.append(ptr));
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Different_Ptrs_Paths_Mixed)
+{
+    Ufe::Selection a, b;
+
+    auto ptr = Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_01", 1, '/')));
+    EXPECT_TRUE(a.append(ptr));
+    EXPECT_TRUE(b.append(ptr));
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_02", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_03", 1, '/')))));
+
+    EXPECT_FALSE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
+
+TEST(UtilsTest, SelectionsAreEquivalent_Different_WorstCase)
+{
+    Ufe::Selection a, b;
+    for (int x = 0; x < 99; ++x) {
+        for (int y = 0; y < 99; ++y) {
+            std::string path = QString("test_root/test_folder_%1/test_%2")
+                                   .arg(x, 2, QChar('0'))
+                                   .arg(y, 2, QChar('0'))
+                                   .toStdString();
+            auto ptr = Ufe::Hierarchy::createItem(Ufe::Path::Path(Ufe::PathSegment(path, 1, '/')));
+            EXPECT_TRUE(a.append(ptr));
+            EXPECT_TRUE(b.append(ptr));
+        }
+    }
+
+    // still valid...
+    EXPECT_TRUE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+
+    EXPECT_TRUE(a.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_folder_99/test_100", 1, '/')))));
+    EXPECT_TRUE(b.append(Ufe::Hierarchy::createItem(
+        Ufe::Path::Path(Ufe::PathSegment("test_root/test_folder_99/test_101", 1, '/')))));
+    // not equal any more
+    EXPECT_FALSE(UfeUi::Utils::selectionsAreEquivalent(a, b));
+}
\ No newline at end of file
diff --git a/src/UFEUI/Tests/ufeUiTestBase.h b/src/UFEUI/Tests/ufeUiTestBase.h
new file mode 100644
index 0000000..68a5539
--- /dev/null
+++ b/src/UFEUI/Tests/ufeUiTestBase.h
@@ -0,0 +1,31 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "testUfeRuntime.h"
+
+#include <gtest/gtest.h>
+
+class UfeUiBaseTest : public ::testing::Test
+{
+protected:
+    void SetUp() override
+    {
+        UfeUiTest::TestObject3d::clearVisMap();
+        UfeUiTest::TestHierarchy::resetTestHierarchy();
+    }
+    void TearDown() override { }
+};
\ No newline at end of file
diff --git a/src/UFEUI/Tests/utils.cpp b/src/UFEUI/Tests/utils.cpp
new file mode 100644
index 0000000..c1d027f
--- /dev/null
+++ b/src/UFEUI/Tests/utils.cpp
@@ -0,0 +1,109 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "utils.h"
+
+#include <UFEUI/treeItem.h>
+
+#include <QtGui/QIcon.h>
+#include <QtGui/QPalette.h>
+#include <QtWidgets/QApplication.h>
+
+namespace UfeUiTest {
+
+Ufe::Path getUfePath(std::string path)
+{
+    auto rootSeg = Ufe::PathSegment(path, 1, separator);
+    return Ufe::Path { { Ufe::PathSegment(path, 1, separator) } };
+}
+
+const QString        TestColumn::DefaultDisplayData = QString("Default");
+const Qt::CheckState TestColumn::DefaultCheckStateData = Qt::CheckState::Checked;
+
+QVariant TestColumn::columnHeader(int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return QString("TestColumnHeader")
+            .append(QString::fromStdString(std::to_string(visualIndex())));
+    }
+    return {};
+}
+
+QVariant TestColumn::data(const UfeUi::TreeItem* treeItem, int role) const
+{
+    const auto it = _data.find(treeItem->sceneItem()->path());
+
+    switch (role) {
+    case Qt::CheckStateRole: {
+        return it == _data.end() ? DefaultCheckStateData : it->second.second;
+    }
+    case Qt::DisplayRole: {
+        auto str = it == _data.end() ? DefaultDisplayData : it->second.first;
+        return str;
+    }
+    case Qt::ForegroundRole: {
+        if (!treeItem->computedVisibility()) {
+            return QApplication::palette().color(QPalette::Disabled, QPalette::WindowText);
+        }
+        return QVariant {};
+    }
+    }
+    return QVariant {};
+}
+
+void TestColumn::flags(const UfeUi::TreeItem* treeItem, Qt::ItemFlags& flags)
+{
+    if (visualIndex() == 0) {
+        flags.setFlag(Qt::ItemIsUserCheckable, true);
+        flags.setFlag(Qt::ItemIsEnabled, false);
+    } else if (visualIndex() == 1) {
+        flags.setFlag(Qt::ItemIsUserCheckable, false);
+        flags.setFlag(Qt::ItemIsEnabled, true);
+    }
+}
+
+bool TestColumn::setData(const UfeUi::TreeItem* treeItem, const QVariant& value, int role)
+{
+    const Ufe::Path key = treeItem->sceneItem()->path();
+
+    switch (role) {
+    case Qt::CheckStateRole:
+        _data[key].second = static_cast<Qt::CheckState>(value.toInt());
+        return true;
+
+    case Qt::DisplayRole: _data[key].first = value.toString(); return true;
+    }
+    return false;
+}
+
+std::shared_ptr<UfeUi::TreeModel> createEmptyModel()
+{
+    UfeUi::TreeColumns columns;
+    return std::make_shared<UfeUi::TreeModel>(columns, nullptr);
+}
+
+std::shared_ptr<UfeUi::TreeItem> createTreeItem(UfeUi::TreeModel* model, const Ufe::Path& path)
+{
+    return std::make_shared<UfeUi::TreeItem>(model, Ufe::Hierarchy::createItem(path));
+}
+
+bool areIconsEqual(const QIcon& icon1, const QIcon& icon2)
+{
+    auto image1 = icon1.pixmap(16, 16).toImage();
+    auto image2 = icon2.pixmap(16, 16).toImage();
+    return image1 == image2;
+};
+
+} // namespace UfeUiTest
\ No newline at end of file
diff --git a/src/UFEUI/Tests/utils.h b/src/UFEUI/Tests/utils.h
new file mode 100644
index 0000000..284bfe7
--- /dev/null
+++ b/src/UFEUI/Tests/utils.h
@@ -0,0 +1,66 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "testUfeRuntime.h"
+
+#include <UFEUI/treeModel.h>
+
+#include <ufe/sceneItem.h>
+
+//! Test utilities.
+namespace UfeUiTest {
+
+static const char separator = '/';
+
+//! Build a UFE path with a single segment, from a string.
+Ufe::Path getUfePath(std::string path);
+
+//! Creates an empty tree model.
+std::shared_ptr<UfeUi::TreeModel> createEmptyModel();
+
+//! Creates a treeItem from a model and ufe path.
+std::shared_ptr<UfeUi::TreeItem> createTreeItem(UfeUi::TreeModel* model, const Ufe::Path& path);
+
+//! Compare icons by baking to images, and comparing the results.
+bool areIconsEqual(const QIcon& icon1, const QIcon& icon2);
+
+//! Dummy subject, to be used when testing the Ufe explorer.
+class TestSubject : public Ufe::Subject
+{
+};
+static TestSubject testSubject;
+
+//! Test tree column implementation.
+class TestColumn : public UfeUi::TreeColumn
+{
+public:
+    const static QString        DefaultDisplayData;
+    const static Qt::CheckState DefaultCheckStateData;
+
+    using TreeColumn::TreeColumn;
+
+    QVariant columnHeader(int role) const override;
+    QVariant data(const UfeUi::TreeItem*, int role) const override;
+    void     flags(const UfeUi::TreeItem*, Qt::ItemFlags& flags) override;
+    bool     setData(const UfeUi::TreeItem*, const QVariant& value, int role) override;
+
+private:
+    // Dummy backing model
+    std::unordered_map<Ufe::Path, std::pair<QString, Qt::CheckState>> _data;
+};
+} // namespace UfeUiTest
+;
\ No newline at end of file
diff --git a/src/UFEUI/UFEUI.vcxproj b/src/UFEUI/UFEUI.vcxproj
new file mode 100644
index 0000000..7cf4001
--- /dev/null
+++ b/src/UFEUI/UFEUI.vcxproj
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>UFEUI</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{0E1A6B42-080B-475C-8F53-613C47A99C81}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.common.settings.props" />
+    <Import Project="$(SolutionDir)\UFE.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>UfeUi</TargetName>
+    <TargetExt>.dll</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>UFEUI_EXPORTS;_USRDLL;_USE_MATH_DEFINES;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);$(UfeInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <DisableSpecificWarnings>4251;4275;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(UfeLib);$(UfeUsdLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="editCommand.h" />
+    <ClInclude Include="genericCommand.h" />
+    <ClInclude Include="highlightItemDelegate.h" />
+    <ClInclude Include="icon.h" />
+    <ClInclude Include="qExplorerTreeViewContextMenu.h" />
+    <ClInclude Include="replaceSelectionCommand.h" />
+    <ClInclude Include="ufeUiAPI.h" />
+    <ClInclude Include="itemSearch.h" />
+    <ClInclude Include="explorerSearchThread.h" />
+    <ClInclude Include="standardTreeColumns.h" />
+    <ClInclude Include="treeColumn.h" />
+    <ClInclude Include="treeItem.h" />
+    <QtMoc Include="treeModel.h" />
+    <ClInclude Include="utils.h" />
+    <QtMoc Include="Views\explorer.h" />
+    <QtMoc Include="Views\tabWidget.h" />
+    <QtMoc Include="Views\explorerHost.h" />
+    <QtMoc Include="Views\explorerStyle.h" />
+    <QtMoc Include="Widgets\qFilenameEdit.h" />
+    <ClInclude Include="Widgets\qSpinnerOverlayWidget.h" />
+    <ClInclude Include="Widgets\qSpinnerWidget.h" />
+    <ClInclude Include="Widgets\resizeEventFilter.h" />
+    <ClInclude Include="Views\qExplorerTreeView.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="editCommand.cpp" />
+    <ClCompile Include="highlightItemDelegate.cpp" />
+    <ClCompile Include="icon.cpp" />
+    <ClCompile Include="itemSearch.cpp" />
+    <ClCompile Include="explorerSearchThread.cpp" />
+    <ClCompile Include="qExplorerTreeViewContextMenu.cpp" />
+    <ClCompile Include="replaceSelectionCommand.cpp" />
+    <ClCompile Include="standardTreeColumns.cpp" />
+    <ClCompile Include="treeColumn.cpp" />
+    <ClCompile Include="treeItem.cpp" />
+    <ClCompile Include="treeModel.cpp" />
+    <ClCompile Include="utils.cpp" />
+    <ClCompile Include="Views\explorer.cpp" />
+    <ClCompile Include="Views\explorerHost.cpp" />
+    <ClCompile Include="Views\explorerStyle.cpp" />
+    <ClCompile Include="Views\qExplorerTreeView.cpp" />
+    <ClCompile Include="Views\tabWidget.cpp" />
+    <ClCompile Include="Widgets\qFilenameEdit.cpp" />
+    <ClCompile Include="Widgets\qSpinnerOverlayWidget.cpp" />
+    <ClCompile Include="Widgets\qSpinnerWidget.cpp" />
+    <ClCompile Include="Widgets\resizeEventFilter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\explorer.ui" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/UFEUI/UFEUI.vcxproj.filters b/src/UFEUI/UFEUI.vcxproj.filters
new file mode 100644
index 0000000..06d2f99
--- /dev/null
+++ b/src/UFEUI/UFEUI.vcxproj.filters
@@ -0,0 +1,169 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="itemSearch.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Widgets\qSpinnerOverlayWidget.cpp">
+      <Filter>Source Files\Widgets</Filter>
+    </ClCompile>
+    <ClCompile Include="Widgets\qSpinnerWidget.cpp">
+      <Filter>Source Files\Widgets</Filter>
+    </ClCompile>
+    <ClCompile Include="Widgets\resizeEventFilter.cpp">
+      <Filter>Source Files\Widgets</Filter>
+    </ClCompile>
+    <ClCompile Include="explorerSearchThread.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="standardTreeColumns.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="treeItem.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="treeModel.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="icon.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="utils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="editCommand.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="highlightItemDelegate.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="qExplorerTreeViewContextMenu.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\explorerHost.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\tabWidget.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\explorerStyle.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="replaceSelectionCommand.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\explorer.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\qExplorerTreeView.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="treeColumn.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Widgets\qFilenameEdit.cpp">
+      <Filter>Source Files\Widgets</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="explorerSearchThread.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Widgets\qSpinnerOverlayWidget.h">
+      <Filter>Header Files\Widgets</Filter>
+    </ClInclude>
+    <ClInclude Include="Widgets\qSpinnerWidget.h">
+      <Filter>Header Files\Widgets</Filter>
+    </ClInclude>
+    <ClInclude Include="Widgets\resizeEventFilter.h">
+      <Filter>Header Files\Widgets</Filter>
+    </ClInclude>
+    <ClInclude Include="itemSearch.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="standardTreeColumns.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="treeColumn.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="ufeUiAPI.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="icon.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="utils.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="treeItem.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="editCommand.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="highlightItemDelegate.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\qExplorerTreeView.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="qExplorerTreeViewContextMenu.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="replaceSelectionCommand.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="genericCommand.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\explorer.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{bf79e9d5-6716-4d23-9edd-aabb8b2b199e}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{d8126168-b1d4-4b98-a685-8e4a917c9fa3}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{fcd85ab1-08c3-4555-82a7-fb04c6112433}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Widgets">
+      <UniqueIdentifier>{d2961ff8-f040-4ada-bf5a-031dda51049c}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Widgets">
+      <UniqueIdentifier>{97b80895-0bc1-4e8f-9358-df4a96b2206b}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Views">
+      <UniqueIdentifier>{ac50ea4e-e3df-4f45-bd3d-098035059987}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Views">
+      <UniqueIdentifier>{97af798e-c256-4b10-b4b8-924b477424a2}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="treeModel.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\explorerHost.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\tabWidget.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\explorer.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\ExplorerStyle.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Widgets\qFilenameEdit.h">
+      <Filter>Header Files\Widgets</Filter>
+    </QtMoc>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/UFEUI/UFEUIAPI.h b/src/UFEUI/UFEUIAPI.h
new file mode 100644
index 0000000..fa5eafa
--- /dev/null
+++ b/src/UFEUI/UFEUIAPI.h
@@ -0,0 +1,25 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_UFEUI_API_H
+#define UFEUI_UFEUI_API_H
+
+#ifdef UFEUI_EXPORTS
+#define UFEUIAPI __declspec(dllexport)
+#else
+#define UFEUIAPI __declspec(dllimport)
+#endif
+
+#endif // UFEUI_UFEUI_API_H
diff --git a/src/UFEUI/Views/ExplorerHost.cpp b/src/UFEUI/Views/ExplorerHost.cpp
new file mode 100644
index 0000000..b4c6f5e
--- /dev/null
+++ b/src/UFEUI/Views/ExplorerHost.cpp
@@ -0,0 +1,205 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "explorerHost.h"
+
+#include "ExplorerStyle.h"
+#include "tabWidget.h"
+
+#include <UFEUI/utils.h>
+
+#include <qboxlayout.h>
+#include <qmainwindow.h>
+#include <qmenubar.h>
+#include <qpointer.h>
+#include <qtabwidget.h>
+
+namespace UfeUi {
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+class ExplorerHostPrivate
+{
+public:
+    ExplorerHostPrivate(ExplorerHost* explorerHost, QMainWindow* mainWindow)
+        : m_MainWindow(mainWindow)
+        , q_ptr(explorerHost)
+    {
+    }
+
+    QPointer<QMainWindow> m_MainWindow;
+    QPointer<QMenuBar>    m_MenuBar;
+    QPointer<TabWidget>   m_TabWidget;
+
+    Q_DECLARE_PUBLIC(ExplorerHost);
+    ExplorerHost* q_ptr;
+
+    /** Returns the tab index for the explorer rooted at the given path.
+     * \param rootItemPath The root item path.
+     * \param result Receives the explorer widget when found.
+     * \return The tab index. */
+    int tabIndex(const Ufe::Path& rootItemPath, Explorer** result = nullptr) const
+    {
+        if (!m_TabWidget) {
+            return -1;
+        }
+        int tabIdx = 0;
+        for (int i = 0; i < m_TabWidget->count(); ++i) {
+            if (auto explorer = dynamic_cast<Explorer*>(m_TabWidget->widget(i))) {
+                if (explorer->rootItem()->path() == rootItemPath) {
+                    if (result) {
+                        *result = explorer;
+                    }
+                    return tabIdx;
+                }
+            }
+            tabIdx++;
+        }
+        return -1;
+    }
+};
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+ExplorerHost::ExplorerHost(QMainWindow* parent, Qt::WindowFlags windowFlags)
+    : QWidget(parent, windowFlags)
+    , d_ptr(new ExplorerHostPrivate(this, parent))
+{
+    setObjectName("ExplorerHost");
+
+    Q_D(ExplorerHost);
+
+    d->m_TabWidget = new TabWidget(this);
+    auto l = new QVBoxLayout(this);
+    l->addWidget(d->m_TabWidget);
+    l->setContentsMargins(0, 0, 0, 0);
+    d->m_TabWidget->setDocumentMode(true);
+    d->m_TabWidget->setTabsClosable(true);
+
+    if (parent) {
+        parent->setCentralWidget(this);
+        if (!parent->menuBar()) {
+            parent->setMenuBar(new QMenuBar(parent));
+        }
+        d->m_MenuBar = parent->menuBar();
+
+        auto style = parent->style();
+        if (!dynamic_cast<ExplorerStyle*>(style)) {
+            parent->setStyle(new ExplorerStyle(style));
+        }
+    }
+
+    // Connect the close (X) button on tabs.
+    connect(d->m_TabWidget, &QTabWidget::tabCloseRequested, [this](int index) {
+        Q_D(ExplorerHost);
+        if (d->m_TabWidget) {
+            const auto widget = d->m_TabWidget->widget(index);
+            d->m_TabWidget->removeTab(index);
+            widget->deleteLater();
+        }
+    });
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+void ExplorerHost::addExplorer(Explorer* explorer, const QString& name, bool setActive)
+{
+    // Adopt the widget.
+    explorer->setParent(this);
+    Q_D(ExplorerHost);
+    if (d->m_TabWidget) {
+        const auto tab = d->m_TabWidget->addTab(explorer, name);
+        if (setActive) {
+            d->m_TabWidget->setCurrentIndex(tab);
+        }
+    }
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+Explorer* ExplorerHost::setActiveExplorer(const Ufe::Path& rootItemPath)
+{
+    Explorer* explorer = nullptr;
+    Q_D(ExplorerHost);
+    const auto tabIdx = d->tabIndex(rootItemPath, &explorer);
+    if (tabIdx < 0) {
+        return nullptr;
+    }
+    d->m_TabWidget->setCurrentIndex(tabIdx);
+    return explorer;
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+Explorer* ExplorerHost::activeExplorer() const
+{
+    Q_D(const ExplorerHost);
+    if (!d->m_TabWidget) {
+        return nullptr;
+    }
+    return dynamic_cast<Explorer*>(d->m_TabWidget->currentWidget());
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+void ExplorerHost::closeExplorer(const Ufe::Path& rootItemPath)
+{
+    Q_D(ExplorerHost);
+    if (!d->m_TabWidget) {
+        return;
+    }
+    const auto tabIdx = d->tabIndex(rootItemPath);
+    if (tabIdx < 0) {
+        return;
+    }
+    d->m_TabWidget->tabCloseRequested(tabIdx);
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+void ExplorerHost::setPlaceHolderText(const QString& placeHolder)
+{
+    Q_D(ExplorerHost);
+    if (d->m_TabWidget) {
+        d->m_TabWidget->setPlaceHolderText(placeHolder);
+    }
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+QMenuBar* ExplorerHost::menuBar() const
+{
+    Q_D(const ExplorerHost);
+    return d->m_MenuBar;
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+std::vector<Explorer*> ExplorerHost::explorers() const
+{
+    Q_D(const ExplorerHost);
+    std::vector<Explorer*> explorers;
+    if (d->m_TabWidget) {
+        for (int i = 0; i < d->m_TabWidget->count(); ++i) {
+            if (auto explorer = dynamic_cast<Explorer*>(d->m_TabWidget->widget(i))) {
+                explorers.push_back(explorer);
+            }
+        }
+    }
+    return explorers;
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Views/ExplorerStyle.cpp b/src/UFEUI/Views/ExplorerStyle.cpp
new file mode 100644
index 0000000..7e93340
--- /dev/null
+++ b/src/UFEUI/Views/ExplorerStyle.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "ExplorerStyle.h"
+
+#include <UFEUI/utils.h>
+
+namespace UfeUi {
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+ExplorerStyle::ExplorerStyle(QStyle* style /*= nullptr*/)
+    : QProxyStyle(style)
+{
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+QSize ExplorerStyle::sizeFromContents(
+    ContentsType        type,
+    const QStyleOption* option,
+    const QSize&        size,
+    const QWidget*      widget) const
+{
+    if (type == QStyle::ContentsType::CT_MenuBar) {
+        QSize result = QProxyStyle::sizeFromContents(type, option, size, widget);
+        result.setHeight(qRound(UfeUi::Utils::dpiScale() * 23.5f));
+        return result;
+    } else if (type == QStyle::ContentsType::CT_MenuBarItem) {
+        QSize result = QProxyStyle::sizeFromContents(type, option, size, widget);
+        result.setHeight(qRound(UfeUi::Utils::dpiScale() * 22.5f));
+        return result;
+    }
+    return QProxyStyle::sizeFromContents(type, option, size, widget);
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Views/ExplorerStyle.h b/src/UFEUI/Views/ExplorerStyle.h
new file mode 100644
index 0000000..1babf6c
--- /dev/null
+++ b/src/UFEUI/Views/ExplorerStyle.h
@@ -0,0 +1,40 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UFEUI_EXPLORER_STYLE
+#define UFEUI_EXPLORER_STYLE
+
+#include <qproxystyle.h>
+
+namespace UfeUi {
+
+class ExplorerStyle : public QProxyStyle
+{
+    Q_OBJECT
+
+public:
+    ExplorerStyle(QStyle* style = nullptr);
+
+    QSize sizeFromContents(
+        ContentsType        type,
+        const QStyleOption* option,
+        const QSize&        size,
+        const QWidget*      widget) const override;
+};
+
+}; // namespace UfeUi
+
+#endif // UFEUI_EXPLORER_STYLE
\ No newline at end of file
diff --git a/src/UFEUI/Views/TabWidget.cpp b/src/UFEUI/Views/TabWidget.cpp
new file mode 100644
index 0000000..dc65729
--- /dev/null
+++ b/src/UFEUI/Views/TabWidget.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "TabWidget.h"
+
+#include <qevent.h>
+#include <qpainter.h>
+
+namespace UfeUi {
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+TabWidget::TabWidget(QWidget* parent)
+    : QTabWidget(parent)
+{
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+void TabWidget::setPlaceHolderText(const QString& placeHolderText)
+{
+    m_PlaceHolderText = placeHolderText;
+}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+void TabWidget::paintEvent(QPaintEvent* event)
+{
+    QTabWidget::paintEvent(event);
+    if (!count()) {
+        QPainter painter(this);
+        painter.drawText(rect(), Qt::AlignCenter | Qt::TextWordWrap, m_PlaceHolderText);
+    }
+}
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/Views/explorer.cpp b/src/UFEUI/Views/explorer.cpp
new file mode 100644
index 0000000..066e5b3
--- /dev/null
+++ b/src/UFEUI/Views/explorer.cpp
@@ -0,0 +1,962 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "explorer.h"
+
+#include "ui_Explorer.h"
+
+#include <UFEUI/ReplaceSelectionCommand.h>
+#include <UFEUI/editCommand.h>
+#include <UFEUI/explorerSearchThread.h>
+#include <UFEUI/icon.h>
+#include <UFEUI/qExplorerTreeViewContextMenu.h>
+#include <UFEUI/treeModel.h>
+#include <UFEUI/treeitem.h>
+#include <UFEUI/utils.h>
+
+#include <ufe/attributes.h>
+#include <ufe/contextOps.h>
+#include <ufe/globalSelection.h>
+#include <ufe/hierarchy.h>
+#include <ufe/object3d.h>
+#include <ufe/observableSelection.h>
+#include <ufe/scene.h>
+#include <ufe/sceneItem.h>
+#include <ufe/sceneNotification.h>
+#include <ufe/selectionNotification.h>
+#include <ufe/undoableCommandMgr.h>
+
+#include <QtWidgets/QActionGroup.h>
+#include <QtWidgets/QHeaderView.h>
+#include <QtWidgets/QMenu.h>
+#include <QtWidgets/QStyledItemDelegate.h>
+
+namespace UfeUi {
+
+Explorer::Explorer(
+    const Ufe::SceneItem::Ptr&   rootItem,
+    const TreeColumns&           columns,
+    const TypeFilter&            typeFilter,
+    Ufe::Hierarchy::ChildFilter& childFilter,
+    bool                         autoExpandToSelection,
+    const QString&               styleSheet,
+    const ColorScheme&           colorScheme,
+    QWidget*                     parent)
+    : QWidget { parent }
+    , _rootItem { rootItem }
+    , _columns(columns)
+    , _ui(new Ui::Explorer)
+    , _typeFilter { typeFilter }
+    , _childFilter { childFilter }
+    , _autoExpandToSelection { autoExpandToSelection }
+    , _sceneObserver { std::make_shared<Observer>(this) }
+    , _colorScheme { colorScheme }
+{
+    _ui->setupUi(this);
+    setParent(parent);
+
+    setupUiFromRootItem(rootItem);
+    const auto treeView = _ui->treeView;
+
+    for (auto& c : _columns) {
+        c->addExplorer(this);
+    }
+
+    treeView->setSelectionMode(QAbstractItemView::ExtendedSelection);
+    treeView->setSelectionBehavior(QAbstractItemView::SelectRows);
+
+    if (!styleSheet.isEmpty()) {
+        treeView->setStyleSheet(styleSheet);
+    }
+
+    // Get the explorer to observer scene events. The explorer itself is not an observer because of
+    // UFE requires observers to be held in shared ptrs... but that is not a good idea for QT
+    // objects. Therefor, the explorer just owns an explorer, which reports to it.
+    Ufe::Scene::instance().addObserver(_sceneObserver);
+    Ufe::Object3d::addObserver(_sceneObserver);
+    Ufe::Attributes::addObserver(_sceneObserver);
+
+    // Also observe the global selection.
+    if (auto globalSelection = Ufe::GlobalSelection::get()) {
+        globalSelection->addObserver(_sceneObserver);
+    }
+
+    // ctrl+click on expand arrow
+    connect(treeView, &QTreeView::expanded, [this](const QModelIndex& index) {
+        // Use the guard to avoid triggering costly updates for every expand, do it all at once.
+        const auto expandGuard = ExpansionGuard { this };
+        if (QApplication::keyboardModifiers().testFlag(Qt::ControlModifier)) {
+            _ui->treeView->expandRecursively(index);
+        }
+    });
+    // ctrl+click on collapse arrow
+    connect(treeView, &QTreeView::collapsed, [this](const QModelIndex& index) {
+        // Use the guard to avoid triggering costly updates for every collapse, do it all at once.
+        const auto expandGuard = ExpansionGuard { this };
+        if (QApplication::keyboardModifiers().testFlag(Qt::ControlModifier)) {
+            int childCount = index.model()->rowCount(index);
+            for (int i = 0; i < childCount; i++) {
+                QModelIndex child = index.model()->index(i, 0, index);
+                _ui->treeView->collapse(child);
+            }
+        }
+    });
+
+    // Columns may define their own item delegates.
+    for (int i = 0; i < columns.size(); ++i) {
+        const auto styleDelegate = columns[i]->createStyleDelegate(this);
+        if (styleDelegate) {
+            treeView->setItemDelegateForColumn(i, styleDelegate);
+        }
+    }
+
+    QHeaderView* header = treeView->header();
+    if (header != nullptr && !columns.empty()) {
+        // Setup custom style for headers. If the header label is only an icon, this style makes
+        // sure it is centered. Nothing else worked - the usual align flags only work on text, for
+        // some reason.
+        header->setStyle(new Icon::CenteredIconHeaderStyle(header->style()));
+
+        header->setMinimumSectionSize(static_cast<int>(32 * Utils::dpiScale()));
+        header->setSectionResizeMode(0, QHeaderView::ResizeMode::ResizeToContents);
+        header->setSectionResizeMode(1, QHeaderView::ResizeMode::ResizeToContents);
+        header->setSectionResizeMode(2, QHeaderView::ResizeMode::Interactive);
+        header->setStretchLastSection(true);
+
+        // Arbitrary width for the name column.
+        static int primNameColumnWidth = static_cast<int>(190 * Utils::dpiScale());
+        treeView->setColumnWidth(0, primNameColumnWidth);
+    }
+
+    // Initialize the selection in the tree from the UFE selection, which might already exist.
+    updateTreeSelection();
+}
+
+void Explorer::setColumnState(int visualIdx, bool hidden)
+{
+    if (hidden) {
+        _ui->treeView->hideColumn(visualIdx);
+    } else {
+        _ui->treeView->showColumn(visualIdx);
+    }
+}
+
+Explorer::~Explorer()
+{
+    Ufe::Scene::instance().removeObserver(_sceneObserver);
+    Ufe::Object3d::removeObserver(_sceneObserver);
+    for (auto& c : _columns) {
+        c->removeExplorer(this);
+    }
+}
+
+void Explorer::setupUiFromRootItem(const Ufe::SceneItem::Ptr& rootItem)
+{
+    if (!rootItem) {
+        return;
+    }
+
+    _treeModel = TreeModel::create(_columns, nullptr);
+    _treeModel->buildTreeFrom(_treeModel->root(), rootItem, "", {}, _childFilter, true);
+
+    // Configure the treeview.
+    _proxyModel = std::make_unique<QSortFilterProxyModel>(this);
+    _proxyModel->setSourceModel(_treeModel.get());
+    _proxyModel->setDynamicSortFilter(false);
+    _proxyModel->setFilterCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
+    _ui->treeView->setModel(_proxyModel.get());
+    _ui->treeView->expandToDepth(1);
+
+    QHeaderView* treeHeader = _ui->treeView->header();
+
+    // Move columns based on the specified visual indices in the column definitions.
+    for (int logicalIdx = 0; logicalIdx < _columns.size(); ++logicalIdx) {
+        const auto curVisualIdx = treeHeader->visualIndex(logicalIdx);
+        treeHeader->moveSection(curVisualIdx, _columns[logicalIdx]->visualIndex());
+    }
+
+    connect(_ui->filterLineEdit, &QLineEdit::textChanged, this, &Explorer::onSearchFilterChanged);
+    connect(
+        _ui->treeView->selectionModel(),
+        &QItemSelectionModel::selectionChanged,
+        this,
+        &Explorer::onTreeViewSelectionChanged);
+
+    // Hook up context menu, for Ufe ContextOps.
+    _ui->treeView->setContextMenuPolicy(Qt::CustomContextMenu);
+    connect(
+        _ui->treeView,
+        &QTreeView::customContextMenuRequested,
+        this,
+        &Explorer::onCustomContextMenuRequested);
+
+    // Item clicked events, (just forwarded to columns implementations).
+    connect(_ui->treeView, &QTreeView::clicked, this, &Explorer::onItemClicked);
+    connect(_ui->treeView, &QTreeView::doubleClicked, this, &Explorer::onItemDoubleClicked);
+
+    for (int i = 0; i < _columns.size(); ++i) {
+        _ui->treeView->setColumnSelectable(i, _columns[i]->isSelectable());
+    }
+
+    // Create the Spinner overlay on top of the TreeView, once it is configured:
+    _overlay = std::make_unique<QSpinnerOverlayWidget>(_ui->treeView);
+
+    // Need to manually call the filter function if a filter had already been typed
+    if (!_ui->filterLineEdit->text().isEmpty()) {
+        onSearchFilterChanged(_ui->filterLineEdit->text());
+        _overlay->resize(_ui->treeView->size());
+    }
+}
+
+Ufe::SceneItem::Ptr Explorer::rootItem() const { return _rootItem; }
+
+void Explorer::onItemClicked(const QModelIndex& index) const
+{
+    const auto& sourceIndex = _proxyModel->mapToSource(index);
+    const auto  col = column(sourceIndex);
+    if (col) {
+        const auto treeItem = _treeModel->treeItem(sourceIndex);
+        if (treeItem) {
+            col->clicked(treeItem);
+        }
+    }
+}
+
+void Explorer::onItemDoubleClicked(const QModelIndex& index) const
+{
+    const auto& sourceIndex = _proxyModel->mapToSource(index);
+    const auto  col = column(sourceIndex);
+    if (col) {
+        const auto treeItem = _treeModel->treeItem(sourceIndex);
+        if (treeItem) {
+            col->doubleClicked(treeItem);
+        }
+    }
+}
+
+TreeColumn* Explorer::column(const QModelIndex& index) const
+{
+    const auto col = index.column();
+    if (!index.isValid() || col < 0 || col >= _columns.size()) {
+        return nullptr;
+    }
+    return _columns[col].get();
+}
+
+void Explorer::updateSelectionAncestors()
+{
+    auto       selection = _ui->treeView->selectionModel()->selection().indexes();
+    const auto previous = _selectionAncestors;
+
+    _selectionAncestors.clear();
+
+    for (const auto& item : _parentHighlightExtend) {
+        auto parent = item.parent();
+        if (!parent.isValid()) {
+            continue;
+        }
+        if (_ui->treeView->isExpanded(parent)) {
+            _selectionAncestors.push_back(item);
+            continue;
+        }
+        // Act as if it was selected to compute what ancestor should be lit up.
+        selection.push_back(item);
+    }
+
+    // For each item in the selection, we have to figure out if we need to highlight
+    // an ancestor, in case it itself is not visible because one of its ancestor is
+    // collapsed.
+    // If we are processing a multi-selection, keep track of indices that we have already
+    // visited to avoid duplicating work. For each selected item we recursively look at
+    // all ancestors and highlight the top-most collapsed one that we find. When items
+    // share ancestors, the answer is the same. So when we find that an item was already
+    // visited, we can stop.
+    std::unordered_set<quintptr> visited;
+
+    for (const auto& idx : selection) {
+        if (idx.column() != 0) {
+            continue;
+        }
+
+        QModelIndex ancestorToHighlight;
+        QModelIndex current = idx;
+        do {
+            current = current.parent();
+
+            // Did we already visit this index when processing another selected item?
+            const auto srcIdx = _proxyModel->mapToSource(current);
+            // internalId of the tree model index is a unique hash of the ufe path.
+            const auto key = srcIdx.internalId();
+            if (visited.find(key) != visited.end()) {
+                continue;
+            }
+
+            // If the index is collapsed, it's a candidate, but keep going up...
+            if (!_ui->treeView->isExpanded(current)) {
+                ancestorToHighlight = current;
+            }
+            visited.insert(key);
+        } while (current.parent().isValid());
+
+        if (ancestorToHighlight.isValid()) {
+            _selectionAncestors.emplace_back(ancestorToHighlight);
+        }
+    }
+
+    // Did anything actually change?
+    if (std::equal(
+            previous.begin(),
+            previous.end(),
+            _selectionAncestors.begin(),
+            _selectionAncestors.end())) {
+        return;
+    }
+
+    _ui->treeView->viewport()->repaint();
+}
+
+bool Explorer::isRelevantToExplorer(const Ufe::Path& path) const
+{
+    return path.startsWith(rootItem()->path());
+}
+
+void Explorer::updateTreeSelection()
+{
+
+    auto currentHighlightExtend = _parentHighlightExtend;
+    _parentHighlightExtend.clear();
+
+    const auto& globalSelection = Ufe::GlobalSelection::get();
+    if (globalSelection && !globalSelection->empty()) {
+        std::unordered_set<Ufe::Path> newPaths;
+        for (const auto& item : *globalSelection) {
+            if (item == nullptr) {
+                continue;
+            }
+
+            const auto& path = item->path();
+            if (isRelevantToExplorer(path)) {
+                newPaths.insert(path);
+            }
+        }
+
+        // Querying and assigning the QT selection state is very slow. Make sure we really need to.
+        // selectedIndexes() is the fastest way to get the selection. selectedRows() is dead slow.
+        std::unordered_set<Ufe::Path> currentSelection;
+        const auto&                   indexes = _ui->treeView->selectionModel()->selectedIndexes();
+        for (auto& idx : indexes) {
+            if (idx.column() != 0) {
+                continue;
+            }
+            const auto item = treeModel()->treeItem(_proxyModel->mapToSource(idx));
+            if (!item) {
+                continue;
+            }
+            currentSelection.insert(item->sceneItem()->path());
+        }
+
+        if (newPaths == currentSelection) {
+            return;
+        }
+
+        // Selecting each index individually in QT is dead slow, under the hood QT insist on doing
+        // absolutely everything O(N^2). What we need to do is select "ranges" of indices at the
+        // same time and QT is able to deal with that a bit better.
+        std::set<QModelIndex> toSelect;
+        for (const auto& path : newPaths) {
+            const auto modelIdx = treeModel()->getIndexFromPath(path);
+            if (!modelIdx.isValid()) {
+                // "Parent-Highlight" parent if it is in the tree.
+                const auto parentPath = path.pop();
+                const auto parentModelIdx = treeModel()->getIndexFromPath(parentPath);
+                if (parentModelIdx.isValid()) {
+                    _parentHighlightExtend.insert(_proxyModel->mapFromSource(parentModelIdx));
+                }
+                continue;
+            }
+            toSelect.insert(_proxyModel->mapFromSource(modelIdx));
+        }
+
+        // From each index, build a new range if the index was not already dealt with.
+        QItemSelection selection;
+        // Keep track of processed items, i.e. already part of a selection range. Use the
+        // internal id of the source index - which is the hash of the ufe path. The proxy
+        // index's id is not guaranteed to be unique.
+        std::unordered_set<quintptr> processed;
+        for (const auto& idx : toSelect) {
+            if (processed.find(_proxyModel->mapToSource(idx).internalId()) != processed.end()) {
+                continue;
+            }
+            const auto parent = idx.parent();
+
+            // Create a new range to select.
+            QModelIndex top;
+            QModelIndex bottom;
+
+            // Lambda to expand the range in a direction, will go up or down, and expand
+            // the range if the next index is also selected.
+            auto expandRange
+                = [this, &idx, &parent, &toSelect, &processed](bool up, QModelIndex& bound) {
+                      bound = idx;
+                      QModelIndex next;
+                      while (true) {
+                          // Figure out the next index, from the expand direction..
+                          if (up) {
+                              next = treeView()->indexAbove(bound);
+                          } else {
+                              next = treeView()->indexBelow(bound);
+                          }
+
+                          // If the next item is not a sibling, or is not selected, we are done.
+                          if (next.parent() != parent || toSelect.find(next) == toSelect.end()) {
+                              break;
+                          }
+
+                          bound = next;
+                          processed.insert(_proxyModel->mapToSource(next).internalId());
+                      }
+                  };
+
+            // Find top/bottom range boundaries.
+            expandRange(true, top);
+            expandRange(false, bottom);
+
+            selection.select(top, bottom.siblingAtColumn(static_cast<int>(_columns.size()) - 1));
+        }
+
+        _ui->treeView->selectionModel()->select(selection, QItemSelectionModel::ClearAndSelect);
+        if (isAutoExpandedToSelection()) {
+            expandToSelection(selection);
+        }
+    } else {
+        _ui->treeView->selectionModel()->clearSelection();
+    }
+
+    // When the tree selection changes, updateSelectionAncestors() is called, but
+    // we also need to force it here, if selected items that are not in the tree should
+    // impact parent highlighting.
+    if (currentHighlightExtend != _parentHighlightExtend) {
+        updateSelectionAncestors();
+    }
+}
+
+Explorer::ColorScheme Explorer::colorScheme() { return _colorScheme; }
+
+void Explorer::setColorScheme(const ColorScheme& colorScheme) { _colorScheme = colorScheme; }
+
+const std::vector<QPersistentModelIndex>& Explorer::selectionAncestors()
+{
+    return _selectionAncestors;
+}
+
+bool Explorer::isAutoExpandedToSelection() const { return _autoExpandToSelection; }
+
+void Explorer::setAutoExpandedToSelection(bool autoExpandToSelection)
+{
+    // If we are turning on the option, expand to the current selection.
+    if (autoExpandToSelection && !_autoExpandToSelection) {
+        expandToSelection(_ui->treeView->selectionModel()->selection());
+    }
+    _autoExpandToSelection = autoExpandToSelection;
+}
+
+void Explorer::setChildFilter(const Ufe::Hierarchy::ChildFilter& childFilter)
+{
+    if (!Utils::filtersAreEqual(_childFilter, childFilter)) {
+        _childFilter = childFilter;
+
+        rebuildSubtree(treeModel()->root()->child(0));
+    }
+}
+
+const Ufe::Hierarchy::ChildFilter& Explorer::childFilter() { return _childFilter; }
+
+void Explorer::updateItem(const Ufe::Path& itemPath) const
+{
+    treeView()->setUpdatesEnabled(false);
+    _treeModel->update(itemPath);
+    treeView()->setUpdatesEnabled(true);
+}
+
+Ufe::Observer::Ptr Explorer::observer() { return _sceneObserver; }
+
+TreeModel* Explorer::treeModel() const { return _treeModel.get(); }
+
+QTreeView* Explorer::treeView() const { return _ui->treeView; }
+
+QString Explorer::searchFilter() const { return _ui->filterLineEdit->text(); }
+
+const TypeFilter& Explorer::typeFilter() { return _typeFilter; }
+
+void Explorer::onSearchFilterChanged(const QString& searchFilter)
+{
+    // Stop any search that was already ongoing but that has not yet completed:
+    if (_searchThread != nullptr && !_searchThread->isFinished()) {
+        _searchThread->quit();
+        _searchThread->wait();
+    }
+
+    // Create a timer that will display a Spinner if the search has been ongoing for a (small)
+    // amount of time, to let the User know that a background task is ongoing and that the widget is
+    // not frozen:
+    _searchTimer = std::make_unique<QTimer>(this);
+    _searchTimer->setSingleShot(true);
+    connect(_searchTimer.get(), &QTimer::timeout, _searchTimer.get(), [this]() {
+        _ui->treeView->setEnabled(false);
+        _overlay->startSpinning();
+    });
+    _searchTimer->start(std::chrono::milliseconds(125).count());
+
+    // Create a thread to perform a search for the given criteria in the background in order to
+    // maintain a responsive UI that continues accepting input from the User:
+    _searchThread = std::make_unique<ExplorerSearchThread>(
+        _rootItem, _columns, searchFilter.toStdString(), _typeFilter, _childFilter);
+    connect(
+        _searchThread.get(),
+        &ExplorerSearchThread::finished,
+        _searchThread.get(),
+        [&, searchFilter, this]() {
+            // Since results have been received, discard the timer that was waiting for results so
+            // that the Spinner Widget is not displayed:
+            _searchTimer->stop();
+
+            // Starting a new search. Store the expanded paths, so that we get back to this state
+            // once we are done searching.
+            if (_previousSearchFilter.isEmpty() && !searchFilter.isEmpty()) {
+                Utils::findExpandedPaths(
+                    _treeModel.get(),
+                    _proxyModel.get(),
+                    _ui->treeView,
+                    _treeModel->root(),
+                    _preSearchExpandedPaths);
+            }
+
+            // Set the search results as the new effective data:
+            _treeModel = std::move(_searchThread->consumeResults());
+            _proxyModel->setSourceModel(_treeModel.get());
+
+            // Set the View to a sensible state to reflect the new data:
+            const bool searchYieledResults = _proxyModel->hasChildren();
+
+            // If we just cleared the search filter, expand paths as we had them before we started
+            // searching.
+            if (!_previousSearchFilter.isEmpty() && searchFilter.isEmpty()) {
+                if (!_preSearchExpandedPaths.empty()) {
+                    // Expand the pseudo-root, not tied to a path. We know we need to do this, as we
+                    // have at least one UFE path expanded.
+                    const auto rootIdxInProxy
+                        = _proxyModel->mapFromSource(_treeModel->index(0, 0, QModelIndex {}));
+                    _ui->treeView->setExpanded(rootIdxInProxy, true);
+
+                    Utils::expandPaths(
+                        _ui->treeView,
+                        _treeModel.get(),
+                        _proxyModel.get(),
+                        _preSearchExpandedPaths);
+                    _preSearchExpandedPaths.clear();
+                }
+            } else {
+                // While searching, expand all.
+                _ui->treeView->expandAll();
+            }
+
+            _previousSearchFilter = searchFilter;
+
+            _ui->treeView->selectionModel()->clearSelection();
+            _ui->treeView->setEnabled(searchYieledResults);
+
+            if (searchYieledResults) {
+                _overlay->hide();
+            } else {
+                _overlay->showInformationMessage(QObject::tr("No results found."));
+            }
+        });
+
+    _searchThread->start(QThread::Priority::TimeCriticalPriority);
+}
+
+void Explorer::onTreeViewSelectionChanged(
+    const QItemSelection& selectedItems,
+    const QItemSelection& deselectedItems)
+{
+    const auto&    globalSelection = *Ufe::GlobalSelection::get();
+    Ufe::Selection newSelection { globalSelection };
+
+    auto processItems = [this, &newSelection](const QItemSelection& items, bool select) {
+        for (const auto& index : _proxyModel->mapSelectionToSource(items).indexes()) {
+            if (index.column() != 0) {
+                continue;
+            }
+
+            const auto treeItem = _treeModel->treeItem(index);
+            if (!treeItem) {
+                continue;
+            }
+            const auto ufeSceneItem = treeItem->sceneItem();
+            if (!ufeSceneItem) {
+                continue;
+            }
+            if (select) {
+                newSelection.append(ufeSceneItem);
+                continue;
+            }
+            newSelection.remove(ufeSceneItem);
+        }
+    };
+
+    // Reflect deselected and selected items in the UFE selection.
+    processItems(deselectedItems, false);
+    processItems(selectedItems, true);
+
+    // If the new selection is equivalent the current selection, it means the selection
+    // was changed from outside of the explorer, only need to update the selection
+    // ancestor highlighting.
+    if (Utils::selectionsAreEquivalent(newSelection, globalSelection)) {
+        updateSelectionAncestors();
+        return;
+    }
+
+    // Selection was changed from explorer, remove any item that are not displayed in the explorer.
+    std::vector<Ufe::SceneItemPtr> toRemove;
+    for (const auto& si : newSelection) {
+        if (!isRelevantToExplorer(si->path())) {
+            continue;
+        }
+        if (!treeModel()->getIndexFromPath(si->path()).isValid()) {
+            toRemove.push_back(si);
+        }
+    }
+    for (const auto& si : toRemove) {
+        newSelection.remove(si);
+    }
+
+    _parentHighlightExtend.clear();
+    updateSelectionAncestors();
+
+    Ufe::UndoableCommandMgr::instance().executeCmd(
+        std::make_shared<ReplaceSelectionCommand>(newSelection));
+}
+
+void Explorer::rebuildSubtree(const TreeItem* item)
+{
+    // Save and restore the tree expand state as much as possible.
+    auto expandGuard
+        = Utils::ExpandStateGuard { _ui->treeView, item, _treeModel.get(), _proxyModel.get() };
+
+    // Rebuild the tree from that item.
+    const auto model = treeModel();
+    const auto treeItem = model->treeItem(model->getIndexFromPath(item->sceneItem()->path()));
+    if (!treeItem) {
+        return;
+    }
+    model->buildTreeFrom(
+        treeItem,
+        item->sceneItem(),
+        searchFilter().toStdString(),
+        typeFilter(),
+        _childFilter,
+        false);
+    return;
+}
+
+void Explorer::buildContextMenu(
+    const Ufe::ContextOps::Ptr&      contextOps,
+    QMenu*                           menu,
+    const Ufe::ContextOps::ItemPath& parentPath)
+{
+    const auto items = contextOps->getItems(parentPath);
+
+    QActionGroup* actionGroup = nullptr;
+    // If all the items are checkable and exclusive, use an exclusive QActionGroup for the menu
+    // items. In principle, QT should then use radio buttons. Seems like in 3dsMax, something is
+    // forcing checkboxes...
+    if (std::all_of(items.begin(), items.end(), [](const Ufe::ContextItem& item) {
+            return item.checkable && item.exclusive;
+        })) {
+        actionGroup = new QActionGroup(menu);
+        actionGroup->setExclusive(true);
+    }
+
+    for (const auto& item : items) {
+        const auto& name = item.item;
+        if (name.empty()) {
+            menu->addSeparator();
+            continue;
+        }
+
+        auto fullItemPath = parentPath;
+        fullItemPath.push_back(item.item);
+
+        // If the item has children, we need to create a submenu for it.
+        if (item.hasChildren) {
+            // Recurse.
+            const auto subMenu
+                = new QExplorerTreeViewContextMenu(QString::fromStdString(item.label), this);
+            menu->addMenu(subMenu);
+            buildContextMenu(contextOps, subMenu, fullItemPath);
+        }
+        // Otherwise, add an a menu action, and hook up the context ops cmd.
+        else {
+            Ufe::Value isHeader = item.getMetaData("isMenuHeader");
+            if (!isHeader.empty() && isHeader.get<bool>()) {
+                menu->addSection(QString::fromStdString(item.label));
+            } else {
+                const auto action = menu->addAction(QString::fromStdString(item.label));
+                action->setCheckable(item.checkable);
+                action->setChecked(item.checked);
+                action->setActionGroup(actionGroup);
+                if (!item.image.empty()) {
+                    action->setIcon(UfeUi::Icon::build(item.image));
+                }
+                // Connect to command.
+                connect(action, &QAction::triggered, [this, contextOps, fullItemPath]() {
+                    // Wrap the context op command in an "edit command". Edit commands can add
+                    // pre/post execution behaviors, for execute/undo/redo
+                    const auto cmd = contextOps->doOpCmd(fullItemPath);
+                    if (cmd) {
+                        const auto editCmd = UfeUi::EditCommand::create(
+                            contextOps->sceneItem()->path(), cmd, "USD Stage Edit");
+                        // Execute via the UndoableCommandManager - this way, execution can be
+                        // extended by the DCC via a derived UndoableCommandMgr.
+                        Ufe::UndoableCommandMgr::instance().executeCmd(editCmd);
+                    }
+
+                    // Hack / Workaround :
+                    // There is an issue where the view and model expand states get out of sync
+                    // internally on the QT side. It may be related to
+                    // https://bugreports.qt.io/browse/QTBUG-22546 The "view" and "model" sides get
+                    // out of sync internally in qtreeview.cpp. Here
+                    // https://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/itemviews/qtreeview.cpp?h=dev#n3099
+                    // viewItems.at(item).expanded is true, while there is no matching entry in
+                    // "expandedIndexes". I only ever got this for the top level TreeItem. When the
+                    // issue happens, the symptom is that the root item suddenly appears collapsed
+                    // (no collapse signal sent). The following code block works around this by
+                    // re-expanding the root, if its found to not be expanded and we are in a
+                    // context op on an item below it (situation which doesnt make sense, how can we
+                    // right click a hidden item to open the context ops in the first place?). The
+                    // issue is hard to reproduce consistently.
+                    const auto topLevelItem = treeModel()->root()->child(0)->sceneItem();
+                    if (contextOps->sceneItem()->path() != topLevelItem->path()) {
+                        const auto idx = treeModel()->getIndexFromPath(topLevelItem->path());
+                        const auto proxyIdx = _proxyModel->mapFromSource(idx);
+                        const bool topLevelIsExpanded = _ui->treeView->isExpanded(proxyIdx);
+                        if (!topLevelIsExpanded) {
+                            _ui->treeView->setExpanded(proxyIdx, true);
+                        }
+                    }
+                });
+            }
+        }
+    }
+}
+
+void Explorer::onCustomContextMenuRequested(const QPoint& pos)
+{
+    // Figure out the treeModel index.
+    const auto proxyIndex = _ui->treeView->indexAt(pos);
+    if (!proxyIndex.isValid()) {
+        return;
+    }
+    const auto src = _proxyModel->mapToSource(proxyIndex);
+    const auto item = _treeModel->treeItem(src);
+    if (!item) {
+        return;
+    }
+    const auto sceneItem = item->sceneItem();
+    if (!sceneItem) {
+        return;
+    }
+
+    const auto contextOps = Ufe::ContextOps::contextOps(sceneItem);
+    if (!contextOps) {
+        return;
+    }
+
+    // Build the menu, and show it where it was requested.
+    const auto menu = new QExplorerTreeViewContextMenu(nullptr, this);
+    buildContextMenu(contextOps, menu, {});
+    menu->exec(_ui->treeView->viewport()->mapToGlobal(pos));
+}
+
+void Explorer::expandToSelection(const QItemSelection& selection)
+{
+    if (selection.empty()) {
+        return;
+    }
+
+    {
+        // Use the guard to avoid triggering an update of the ancestors for every expand() in the
+        // loop. Do it once at the end instead.
+        const auto expandGuard = ExpansionGuard { this };
+        for (const auto& idx : selection) {
+            //  Expand the parent items to make the selected item visible
+            auto parent = idx.parent();
+            while (parent.isValid()) {
+                if (!_ui->treeView->isExpanded(parent)) {
+                    _ui->treeView->expand(parent);
+                }
+                parent = parent.parent();
+            }
+        }
+    }
+
+    // Ensure that the first selected item is visible. But only scroll if not already visible.
+    const auto& firstSelectedIdx = selection.indexes().first();
+    const auto  indexRect = _ui->treeView->visualRect(firstSelectedIdx);
+    const auto  treeviewRect = _ui->treeView->viewport()->rect();
+
+    const auto indexBottom = indexRect.y() + indexRect.height();
+    const auto treeviewRectHeight = treeviewRect.height();
+    // Check if the selected item is visible in the explorer, if not scroll to it.
+    if (treeviewRectHeight <= indexBottom || indexBottom < 0) {
+        _ui->treeView->scrollTo(firstSelectedIdx, QTreeView::PositionAtCenter);
+    }
+}
+
+void Explorer::Observer::operator()(const Ufe::Notification& notification)
+{
+    auto getTreeItem = [this](const Ufe::Path& path) -> TreeItem* {
+        const auto model = _explorer->treeModel();
+        const auto idx = model->getIndexFromPath(path);
+        return model->treeItem(idx);
+    };
+
+    auto updateExplorerItem = [this](const Ufe::Path& path) {
+        if (path.getSegments()[0] == _explorer->rootItem()->path().getSegments()[0]) {
+            _explorer->updateItem(path);
+        }
+    };
+
+    if (const auto oa = dynamic_cast<const Ufe::ObjectAdd*>(&notification)) {
+        if (!_explorer->isRelevantToExplorer(oa->changedPath())) {
+            return;
+        }
+
+        const auto model = _explorer->treeModel();
+        const auto addedPath = oa->changedPath();
+
+        // It's possible to already have the tree item. For example if an item is inactive,
+        // and so technically not in the scene, but still potentially displayed in the tree.
+        TreeItem*           treeItem = getTreeItem(addedPath);
+        Ufe::SceneItem::Ptr sceneItem = nullptr;
+        if (treeItem) {
+            sceneItem = treeItem->sceneItem();
+            updateExplorerItem(sceneItem->path());
+        } else {
+            auto parentItem = getTreeItem(oa->changedPath().pop());
+            if (!parentItem) {
+                parentItem = model->root();
+            }
+            sceneItem = Ufe::Hierarchy::createItem(addedPath);
+            model->layoutAboutToBeChanged();
+            treeItem = parentItem->appendChild(sceneItem);
+            model->layoutChanged();
+        }
+        // There could be items below the added one, that we dont get a notification for...
+        model->buildTreeFrom(
+            treeItem,
+            sceneItem,
+            _explorer->searchFilter().toStdString(),
+            _explorer->typeFilter(),
+            _explorer->_childFilter,
+            false);
+        return;
+    }
+    if (const auto od = dynamic_cast<const Ufe::ObjectDelete*>(&notification)) {
+        if (!_explorer->isRelevantToExplorer(od->changedPath())) {
+            return;
+        }
+        const auto model = _explorer->treeModel();
+        const auto item = getTreeItem(od->changedPath());
+        if (!item) {
+            return;
+        }
+
+        // There are cases (for example inactivation of a prim in the USD ufe runtime,
+        // without filtering of inactive prims), where object delete notifications are
+        // sent out, but we still need to display the prim in question, probably in a
+        // different style. To achieve this, when an object delete is received, look at
+        // whether the item is actually still present given the hierarchy child filter
+        // in use.
+        const auto ufeParentSceneItem = item->parentItem()->sceneItem();
+        if (ufeParentSceneItem) {
+            const auto ufeHier = Ufe::Hierarchy::hierarchy(ufeParentSceneItem);
+            const auto children = ufeHier->filteredChildren(_explorer->_childFilter);
+            for (const auto& child : children) {
+                if (child->path() == item->sceneItem()->path()) {
+                    // Keep the item, but display/subtree may have changed.
+                    _explorer->rebuildSubtree(item);
+                    return;
+                }
+            }
+        }
+
+        model->layoutAboutToBeChanged();
+        item->parentItem()->removeChild(item);
+        model->layoutChanged();
+        return;
+    }
+    if (const auto si = dynamic_cast<const Ufe::SubtreeInvalidate*>(&notification)) {
+        if (!_explorer->isRelevantToExplorer(si->changedPath())) {
+            return;
+        }
+        const auto item = getTreeItem(si->changedPath());
+        if (!item) {
+            return;
+        }
+
+        _explorer->rebuildSubtree(item);
+    }
+
+    if (const auto vc = dynamic_cast<const Ufe::VisibilityChanged*>(&notification)) {
+        if (!_explorer->_ignoreUfeNotifications) {
+            updateExplorerItem(vc->path());
+        }
+        return;
+    }
+    if (const auto ac = dynamic_cast<const Ufe::AttributeChanged*>(&notification)) {
+        if (!_explorer->_ignoreUfeNotifications) {
+            updateExplorerItem(ac->path());
+        }
+        return;
+    }
+
+    // React to the global UFE selection being changed, updating the tree's selection.
+    if (const auto sc = dynamic_cast<const Ufe::SelectionChanged*>(&notification)) {
+        _explorer->updateTreeSelection();
+    }
+}
+
+Explorer::ExpansionGuard::ExpansionGuard(Explorer* explorer)
+    : _explorer { explorer }
+{
+    // If we are already within a guard, do nothing.
+    if (_explorer->_inSelectionExpansion) {
+        _isNested = true;
+        return;
+    }
+    _explorer->_inSelectionExpansion = true;
+}
+
+Explorer::ExpansionGuard::~ExpansionGuard()
+{
+    if (_isNested) {
+        return;
+    }
+    _explorer->_inSelectionExpansion = false;
+    _explorer->updateSelectionAncestors();
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Views/explorer.h b/src/UFEUI/Views/explorer.h
new file mode 100644
index 0000000..107391e
--- /dev/null
+++ b/src/UFEUI/Views/explorer.h
@@ -0,0 +1,350 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_EXPLORER_H
+#define UFEUI_EXPLORER_H
+
+#include <UFEUI/Widgets/qSpinnerOverlayWidget.h>
+#include <UFEUI/itemSearch.h>
+#include <UFEUI/treeColumn.h>
+
+#include <ufe/attributesNotification.h>
+#include <ufe/contextOps.h>
+#include <ufe/object3dNotification.h>
+#include <ufe/observer.h>
+#include <ufe/subject.h>
+
+#include <QtCore/qsortfilterproxymodel.h>
+#include <QtWidgets/qmenu.h>
+#include <QtWidgets/qtreeview.h>
+
+namespace Ui {
+class Explorer;
+}
+
+namespace UfeUi {
+
+class ExplorerSearchThread;
+class TreeModel;
+
+/**
+ * \brief A UFE TreeView explorer widget, with search/filtering/edit capabilities.
+ */
+class UFEUIAPI Explorer : public QWidget
+{
+    Q_OBJECT
+
+public:
+    struct ColorScheme
+    {
+        QColor hover;
+        QColor selected;
+        QColor selectedHover;
+    };
+
+    /**
+     * \brief Constructor.
+     * \param rootItem Root UFE item to build the tree from.
+     * \param columns Column definitions.
+     * \param typeFilter Type filtering configuration - used to filter out items by type.
+     * \param childFilter Ufe Hierarchy child filter, filters item when traversing the
+     * hierarchy. Used by the runtime hierarchy implementation.
+     * \param autoExpandToSelection Whether the explorer should auto-expand when the selection changes.
+     * \param styleSheet QT style sheet for the treeview. Can be empty.
+     * \param colorScheme Color scheme to use in the explorer.
+     * \param parent QT parent object.
+     */
+    explicit Explorer(
+        const Ufe::SceneItem::Ptr&   rootItem,
+        const TreeColumns&           columns,
+        const TypeFilter&            typeFilter,
+        Ufe::Hierarchy::ChildFilter& childFilter,
+        bool                         autoExpandToSelection,
+        const QString&               styleSheet,
+        const ColorScheme&           colorScheme,
+        QWidget*                     parent = nullptr);
+
+    /**
+     * \brief Destructor.
+     */
+    ~Explorer() override;
+
+    /**
+     * \brief Returns the root UFE item in the explorer.
+     * \return The root item.
+     */
+    Ufe::SceneItem::Ptr rootItem() const;
+
+    /**
+     * \brief Updates the treeview item associated with the given UFE path.
+     * \param itemPath The item's path.
+     */
+    void updateItem(const Ufe::Path& itemPath) const;
+
+    /**
+     * \brief The explorer's observer for the UFE scene.
+     * \return The observer.
+     */
+    Ufe::Observer::Ptr observer();
+
+    /**
+     * \brief The TreeModel backing the TreeView in the explorer.
+     * \return The tree model.
+     */
+    TreeModel* treeModel() const;
+
+    QTreeView* treeView() const;
+
+    /**
+     * \brief The current search filter.
+     * \return The search filter string.
+     */
+    QString searchFilter() const;
+
+    /**
+     * \brief The current type filter.
+     * \return The type filter.
+     */
+    const TypeFilter& typeFilter();
+
+    /**
+     * \brief Sets the hierarchy ChildFilter. If the filter set differs from the
+     * previously set filter, the tree is updated.
+     * \param childFilter The childFilter to set.
+     */
+    void setChildFilter(const Ufe::Hierarchy::ChildFilter& childFilter);
+
+    /**
+     * \brief Returns the current hierarchy child filter.
+     * \return The child filter.
+     */
+    const Ufe::Hierarchy::ChildFilter& childFilter();
+
+    /**
+     * \brief Gets whether the explorer will auto-expand and scroll to the current
+     * selection when it changes.
+     * \return True if the explorer will auto-expand.
+     */
+    bool isAutoExpandedToSelection() const;
+
+    /**
+     * \brief Sets whether the explorer will auto-expand and scroll to the current
+     * selection when it changes.
+     * \param autoExpandToSelection True if the explorer should auto-expand.
+     */
+    void setAutoExpandedToSelection(bool autoExpandToSelection);
+
+    /**
+     * \brief Returns the color scheme used by the explorer.
+     * \return The color scheme.
+     */
+    ColorScheme colorScheme();
+
+    /**
+     * \brief Sets the color scheme that should be used by the explorer.
+     * \param colorScheme The color scheme.
+     */
+    void setColorScheme(const ColorScheme& colorScheme);
+
+    /**
+     * \brief Returns the first visible (meaning the parent is expanded, but not
+     * necessarily currently visible on screen) ancestors of the current selection,
+     * only ancestors of currently invisible selected items are returned. This can
+     * be used to highlight ancestors of hidden selected items, for example.
+     * \return The selection ancestors.
+     */
+    const std::vector<QPersistentModelIndex>& selectionAncestors();
+
+    /**
+     * \brief Sets the hidden state of a column of the tree view
+     * \param visualIdx The visual index of the column of the tree view
+     * \param hidden The hidden state of the column
+     */
+    void setColumnState(int visualIdx, bool hidden);
+
+    void setIgnoreUfeNotifications(bool ignore) { _ignoreUfeNotifications = ignore; }
+    bool isIgnoringUfeNotifications() const { return _ignoreUfeNotifications; }
+
+protected:
+    /**
+     * \brief Setup the UI for the explorer.
+     * \param rootItem The root UFE item to build the treeview with.
+     */
+    void setupUiFromRootItem(const Ufe::SceneItem::Ptr& rootItem);
+
+    /**
+     * \brief Callback function executed upon changing the text in the search box.
+     * \param searchFilter The new content of the search box.
+     */
+    void onSearchFilterChanged(const QString& searchFilter);
+
+    /**
+     * \brief Callback function executed upon selecting items in the TreeView.
+     * \param selectedItems The list of TreeView items which were selected.
+     * \param deselectedItems The list of TreeView items which were deselected.
+     */
+    void onTreeViewSelectionChanged(
+        const QItemSelection& selectedItems,
+        const QItemSelection& deselectedItems);
+
+    /**
+     * \brief Completely rebuild the subtree below the given item.
+     * \param item The root of the subtree to rebuild.
+     */
+    void rebuildSubtree(const TreeItem* item);
+
+    /**
+     * \brief React to a context menu being requested at the given point.
+     * \param pos Position on screen where the context menu is requested.
+     */
+    void onCustomContextMenuRequested(const QPoint& pos);
+
+    /**
+     * \brief Makes sure the given indices are visible, by expanding all of their ancestors.
+     * \param selectedIndices The selected indices we want to expand to. The function will
+     * also scroll the view so that the first selected index is visible.
+     */
+    void expandToSelection(const QItemSelection& selectedIndices);
+
+    /**
+     * \brief Build a QMenu context menu from a ContextOps interface, and parent context ops item path. It is called
+     * recursively to build submenus.
+     * \param contextOps Reference to the context ops object.
+     * \param menu The QT menu to add items to.
+     * \param parentPath The parent context ops item path. Its children items will be added to the menu.
+     */
+    void buildContextMenu(
+        const Ufe::ContextOps::Ptr&      contextOps,
+        QMenu*                           menu,
+        const Ufe::ContextOps::ItemPath& parentPath);
+
+    /**
+     * \brief React to click events on items.
+     * \param index The clicked index (proxy model index).
+     */
+    void onItemClicked(const QModelIndex& index) const;
+
+    /**
+     * \brief React to doubleClick events on items.
+     * \param index The clicked index (proxy model index).
+     */
+    void onItemDoubleClicked(const QModelIndex& index) const;
+
+    /**
+     * \brief Returns the column associated with the given index (tree model index)
+     * \param index The index to get the column for.
+     * \return The tree column, or nullptr if the index is out of range.
+     */
+    TreeColumn* column(const QModelIndex& index) const;
+
+    /**
+     * \brief If selected items are not visible because some ancestor is collapsed,
+     * we highlight the ancestor to show it. This method will update this state.
+     */
+    void updateSelectionAncestors();
+
+    /**
+     * \brief Checks whether a path is relevant to the explorer, in that it is a descendant
+     * of the root of the explorer.
+     * \param path The path to check.
+     * \return True if the path is a descendant of the root of the explorer.
+     */
+    bool isRelevantToExplorer(const Ufe::Path& path) const;
+
+    /**
+     * \brief Updates the treeview selection from the global UFE selection.
+     */
+    void updateTreeSelection();
+
+private:
+    /**
+     * \brief Observes a UFE subject and update the explorer accordingly.
+     */
+    class Observer : public Ufe::Observer
+    {
+    public:
+        Observer(Explorer* explorer)
+            : _explorer(explorer)
+        {
+        }
+
+        void operator()(const Ufe::Notification& notification) override;
+
+    private:
+        Explorer* _explorer = nullptr;
+    };
+
+    /// The root UFE item displayed in the explorer.
+    Ufe::SceneItem::Ptr _rootItem;
+    /// Column definitions for the explorer.
+    TreeColumns _columns;
+    /// Reference to the Qt UI View of the dialog
+    std::unique_ptr<Ui::Explorer> _ui { std::make_unique<Ui::Explorer>() };
+    /// Reference to the Model holding the structure of the UFE hierarchy,
+    std::unique_ptr<TreeModel> _treeModel;
+    /// Reference to the Proxy Model used to filter the UFE hierarchy.
+    std::unique_ptr<QSortFilterProxyModel> _proxyModel;
+    /// Overlay on which to display an animated Spinner or message to the User.
+    std::unique_ptr<QSpinnerOverlayWidget> _overlay;
+    /// Reference to the thread used to perform UFE scene item searches in the background.
+    std::unique_ptr<ExplorerSearchThread> _searchThread;
+    /// Keep track of the previous search, this is to control the saving/restoring of
+    /// the expanded items after clearing the search filter.
+    QString _previousSearchFilter;
+    /// The currently expanded items, when a search is initiated. To be restored after the
+    /// search filter is cleared.
+    std::vector<Ufe::Path> _preSearchExpandedPaths;
+    /// Reference to the timer used to display a Spinner overlay on top of the TreeView in case of
+    /// lengthy search operations
+    std::unique_ptr<QTimer> _searchTimer;
+    /// Filtering of UFE items based on scene item type.
+    TypeFilter _typeFilter;
+    /// Child filter (For example, used to optionally filter inactive prims in the USD runtime.)
+    Ufe::Hierarchy::ChildFilter _childFilter;
+    /// The explorer's own observer of changes in the scene.
+    Ufe::Observer::Ptr _sceneObserver = nullptr;
+    /// Observers of scene edition notification, sent from the explorer.
+    std::vector<Ufe::Observer::Ptr> _treeEditObservers;
+    /// Auto-expand to selection.
+    bool _autoExpandToSelection = false;
+    /// Color scheme for the explorer
+    ColorScheme _colorScheme;
+    /// Current ancestor of selected items that need highlighting.
+    std::vector<QPersistentModelIndex> _selectionAncestors;
+    /// Some UFE items may not be displayed in the explorer (for example USD point instances)
+    /// But we still want to highlight their parent. This set contains such parents, that should
+    /// be lit, even though their children are not actually in the tree.
+    std::set<QPersistentModelIndex> _parentHighlightExtend;
+
+    class ExpansionGuard
+    {
+    public:
+        ExpansionGuard(Explorer* explorer);
+        ~ExpansionGuard();
+
+    private:
+        Explorer* _explorer;
+        bool      _isNested = false;
+    };
+    /// Flag telling us that we are in the process of programmatically changing the
+    /// expansion state of items in the view, used to avoid triggering
+    /// unnecessary work from the expand and collapse signals.
+    bool _inSelectionExpansion = false;
+    bool _ignoreUfeNotifications = false;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_EXPLORER_H
diff --git a/src/UFEUI/Views/explorer.ui b/src/UFEUI/Views/explorer.ui
new file mode 100644
index 0000000..9389e86
--- /dev/null
+++ b/src/UFEUI/Views/explorer.ui
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Explorer</class>
+ <widget class="QWidget" name="Explorer">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>305</width>
+    <height>564</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLineEdit" name="filterLineEdit">
+     <property name="inputMask">
+      <string/>
+     </property>
+     <property name="placeholderText">
+      <string>Filter by prim name...</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="qExplorerTreeView" name="treeView">
+     <property name="editTriggers">
+      <set>QAbstractItemView::NoEditTriggers</set>
+     </property>
+     <property name="alternatingRowColors">
+      <bool>false</bool>
+     </property>
+     <property name="uniformRowHeights">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>qExplorerTreeView</class>
+   <extends>QTreeView</extends>
+   <header>qExplorerTreeView.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/UFEUI/Views/explorerHost.h b/src/UFEUI/Views/explorerHost.h
new file mode 100644
index 0000000..d58a61b
--- /dev/null
+++ b/src/UFEUI/Views/explorerHost.h
@@ -0,0 +1,90 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UFEUI_EXPLORER_HOST
+#define UFEUI_EXPLORER_HOST
+
+class QMainWindow;
+
+#include "Explorer.h"
+
+#include <QtWidgets/qwidget.h>
+
+namespace UfeUi {
+
+class ExplorerHostPrivate;
+
+//! Host widget for explorers. Explorers come in as tabs within this widget.
+class UFEUIAPI ExplorerHost : public QWidget
+{
+    Q_OBJECT
+
+public:
+    /** Constructor.
+     * \param parent The parent QMainWindow widget. The explorer host will be
+     * added to this widget as the central widget. If there is no menu bar
+     * assigned to the the main window yet, a new QMenuBar will be added. */
+    ExplorerHost(QMainWindow* parent = nullptr, Qt::WindowFlags windowFlags = {});
+
+    /**
+     * \brief Adds a new explorer, in a new tab.
+     * \param explorer The explorer to add.
+     * \param name Name for the explorer (show's up in the tab)
+     * \param setActive Whether or not to set the explorer as active (as the current tab).
+     */
+    void addExplorer(Explorer* explorer, const QString& name, bool setActive);
+
+    /**
+     * \brief Sets the tab of the explorer rooted at the given UFE path as the active/current one.
+     * \param rootItemPath Root item path of the explorer to set active.
+     * \return The explorer, for convenience.
+     */
+    Explorer* setActiveExplorer(const Ufe::Path& rootItemPath);
+
+    Explorer* activeExplorer() const;
+
+    /**
+     * \brief Closes the explorer rooted at the given UFE path.
+     * \param rootItemPath The root item path of the explorer to close.
+     */
+    void closeExplorer(const Ufe::Path& rootItemPath);
+
+    /**
+     * \brief Sets the placeholder text for when no explorer/tabs exist. The empty state.
+     * \param placeHolder The placeholder text.
+     */
+    void setPlaceHolderText(const QString& placeHolder);
+
+    /**
+     * \brief returns the menu bar used in the explorer host.
+     * \return The menu bar.
+     */
+    QMenuBar* menuBar() const;
+
+    /**
+     * \brief Returns all the explorers hosted by the host.
+     * \return A vector of all explorers.
+     */
+    std::vector<Explorer*> explorers() const;
+
+private:
+    Q_DECLARE_PRIVATE(ExplorerHost);
+    ExplorerHostPrivate* d_ptr = nullptr;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_EXPLORER_HOST
diff --git a/src/UFEUI/Views/explorerHost.ui b/src/UFEUI/Views/explorerHost.ui
new file mode 100644
index 0000000..19d12c5
--- /dev/null
+++ b/src/UFEUI/Views/explorerHost.ui
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExplorerHost</class>
+ <widget class="QMainWindow" name="ExplorerHost">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>398</width>
+    <height>564</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>UFE Explorer</string>
+  </property>
+  <widget class="QWidget" name="container">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QMenuBar" name="menuBar">
+      <property name="minimumSize">
+       <size>
+        <width>0</width>
+        <height>25</height>
+       </size>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="TabWidget" name="tabWidget">
+      <property name="currentIndex">
+       <number>-1</number>
+      </property>
+      <property name="tabsClosable">
+       <bool>true</bool>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>TabWidget</class>
+   <extends>QTabWidget</extends>
+   <header>tabwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/UFEUI/Views/qExplorerTreeView.cpp b/src/UFEUI/Views/qExplorerTreeView.cpp
new file mode 100644
index 0000000..da35e54
--- /dev/null
+++ b/src/UFEUI/Views/qExplorerTreeView.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "qExplorerTreeView.h"
+
+#include <QMouseEvent>
+#include <qguiapplication.h>
+
+void qExplorerTreeView::setColumnSelectable(int column, bool selectable)
+{
+    _columnSelectability[column] = selectable;
+}
+
+void qExplorerTreeView::setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags command)
+{
+    const QModelIndex item = indexAt(rect.topLeft());
+    if (QGuiApplication::keyboardModifiers().testFlag(Qt::ShiftModifier)) {
+        QTreeView::setSelection(rect, command);
+        return;
+    }
+    if (!item.isValid()) {
+        return;
+    }
+    QTreeView::setSelection(QRect(rect.topLeft(), QSize(1, 1)), command);
+}
+
+QItemSelectionModel::SelectionFlags
+qExplorerTreeView::selectionCommand(const QModelIndex& index, const QEvent* event) const
+{
+    if (index.isValid()) {
+        const auto it = _columnSelectability.find(index.column());
+        if (it == _columnSelectability.end() || !it->second) {
+            return QItemSelectionModel::NoUpdate;
+        }
+    }
+    return QTreeView::selectionCommand(index, event);
+}
diff --git a/src/UFEUI/Views/qExplorerTreeView.h b/src/UFEUI/Views/qExplorerTreeView.h
new file mode 100644
index 0000000..eb07dad
--- /dev/null
+++ b/src/UFEUI/Views/qExplorerTreeView.h
@@ -0,0 +1,58 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_QEXPLORER_TREEVIEW_H
+#define UFEUI_QEXPLORER_TREEVIEW_H
+
+#include <QtWidgets/QTreeView>
+#include <unordered_map>
+
+class qExplorerTreeView : public QTreeView
+{
+public:
+    using QTreeView::QTreeView;
+
+    /**
+     * \brief Sets a column as selectable or not. Clicking on an unselectable column of a row does not affect the
+     * TreeView selection.
+     * \param column The column to configure.
+     * \param selectable True if the column is selectable, false otherwise.
+     */
+    void setColumnSelectable(int column, bool selectable);
+
+protected:
+    /**
+     * \brief Override the setSelection by rect method to prevent drag selection, except when shift
+     * is pressed, to make sure the shift selection behavior still works.
+     * \param rect The rectangle where the selection should happen.
+     * \param command The selection command.
+     */
+    void setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags command) override;
+
+    /**
+     * \brief Override the selectionCommand by ModelIndex method to prevent selection happening when clicking on an
+     * unselectable column.
+     * \param index The index from where selection happens.
+     * \param event The event
+     * \return Selection flags to use.
+     */
+    QItemSelectionModel::SelectionFlags
+    selectionCommand(const QModelIndex& index, const QEvent* event) const override;
+
+private:
+    std::unordered_map<int, bool> _columnSelectability;
+};
+
+#endif // UFEUI_QEXPLORER_TREEVIEW_H
diff --git a/src/UFEUI/Views/tabWidget.h b/src/UFEUI/Views/tabWidget.h
new file mode 100644
index 0000000..5cacf7d
--- /dev/null
+++ b/src/UFEUI/Views/tabWidget.h
@@ -0,0 +1,38 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <qtabwidget.h>
+
+namespace UfeUi {
+
+class TabWidget : public QTabWidget
+{
+    Q_OBJECT
+
+public:
+    explicit TabWidget(QWidget* parent = nullptr);
+    void setPlaceHolderText(const QString& placeHolderText);
+
+protected:
+    //! Override the paint event, to customize the "empty" state with some text.
+    void paintEvent(QPaintEvent* event) override;
+
+private:
+    QString m_PlaceHolderText;
+};
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/Widgets/qFilenameEdit.cpp b/src/UFEUI/Widgets/qFilenameEdit.cpp
new file mode 100644
index 0000000..17cc7fe
--- /dev/null
+++ b/src/UFEUI/Widgets/qFilenameEdit.cpp
@@ -0,0 +1,197 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "qFilenameEdit.h"
+
+#include <QtWidgets/QtWidgets>
+
+namespace UfeUi {
+
+class QFilenameEditPrivate
+{
+public:
+    QFilenameEditPrivate(QFilenameEdit* q)
+        : q_ptr(q)
+    {
+    }
+
+    QLineEdit*   lineEdit;
+    QToolButton* toolButton;
+
+    QString initialDirectory;
+    QString lastDirectory;
+    QString baseDirectory;
+
+    QString caption;
+    QString filter;
+
+    QFilenameEdit* q_ptr;
+    Q_DECLARE_PUBLIC(QFilenameEdit)
+};
+
+QFilenameEdit::QFilenameEdit(QWidget* parent /* = nullptr */)
+    : QWidget(parent)
+    , d_ptr { new QFilenameEditPrivate(this) }
+{
+    Q_D(QFilenameEdit);
+    auto l = new QHBoxLayout(this);
+    l->setContentsMargins(0, 0, 0, 0);
+
+    d->lineEdit = new QLineEdit(this);
+    l->addWidget(d->lineEdit, 1);
+
+    d->toolButton = new QToolButton(this);
+    d->toolButton->setText(tr("..."));
+    l->addWidget(d->toolButton, 0);
+
+    connect(d->toolButton, &QToolButton::clicked, this, [this] {
+        Q_D(QFilenameEdit);
+
+        QString lastDir = d->lastDirectory;
+        QString lastFile = d->lineEdit->text();
+        if (!d->baseDirectory.isEmpty()) {
+            auto baseDir = QDir(d->baseDirectory);
+            if (baseDir.exists()) {
+                lastFile = baseDir.absoluteFilePath(lastFile);
+            }
+        }
+        QFileInfo fi(lastFile);
+        if (fi.isFile()) {
+            lastDir = fi.absolutePath();
+        }
+        if (lastDir.isEmpty()) {
+            lastDir = d->initialDirectory;
+        }
+        QFileDialog dlg(this, d->caption, lastDir, d->filter);
+        dlg.setFileMode(QFileDialog::FileMode::AnyFile);
+        dlg.setAcceptMode(QFileDialog::AcceptMode::AcceptOpen);
+        if (fi.exists()) {
+            dlg.selectFile(lastFile);
+        }
+        if (dlg.exec() == QFileDialog::Accepted) {
+            auto selectedFiles = dlg.selectedFiles();
+            if (selectedFiles.isEmpty()) {
+                return;
+            }
+            QString newFilename = selectedFiles.front();
+
+            if (!d->baseDirectory.isEmpty()) {
+                auto baseDir = QDir(d->baseDirectory);
+                if (baseDir.exists()) {
+                    newFilename = QDir::toNativeSeparators(baseDir.relativeFilePath(newFilename));
+                }
+            }
+
+            setFilename(newFilename);
+            Q_EMIT filenameChanged(newFilename);
+        }
+    });
+
+    connect(d->lineEdit, &QLineEdit::editingFinished, this, [this] {
+        Q_D(QFilenameEdit);
+        QString newFilename = d->lineEdit->text();
+        setFilename(newFilename);
+        Q_EMIT filenameChanged(newFilename);
+    });
+}
+
+QFilenameEdit::~QFilenameEdit() = default;
+
+QString QFilenameEdit::filename() const
+{
+    Q_D(const QFilenameEdit);
+    return d->lineEdit->text();
+}
+
+void QFilenameEdit::setFilename(const QString& filename)
+{
+    Q_D(QFilenameEdit);
+    auto fileInfo = QFileInfo(filename);
+    if (d->lineEdit->text() != filename) {
+        d->lineEdit->setText(filename);
+    }
+    if (fileInfo.isAbsolute()) {
+        d->lastDirectory = fileInfo.absolutePath();
+    } else if (!d->baseDirectory.isEmpty()) {
+        auto baseDir = QDir(d->baseDirectory);
+        d->lastDirectory = QFileInfo(baseDir.absoluteFilePath(filename)).absolutePath();
+    } else {
+        d->lastDirectory = d->initialDirectory;
+    }
+}
+
+QString QFilenameEdit::initialDirectory() const
+{
+    Q_D(const QFilenameEdit);
+    return d->initialDirectory;
+}
+
+void QFilenameEdit::setInitialDirectory(const QString& initialDirectory)
+{
+    Q_D(QFilenameEdit);
+    d->initialDirectory = initialDirectory;
+    d->lastDirectory = initialDirectory;
+}
+
+QString QFilenameEdit::baseDirectory() const
+{
+    Q_D(const QFilenameEdit);
+    return d->baseDirectory;
+}
+
+void QFilenameEdit::setBaseDirectory(const QString& baseDirectory)
+{
+    Q_D(QFilenameEdit);
+    d->baseDirectory = baseDirectory;
+}
+
+bool QFilenameEdit::readOnly() const
+{
+    Q_D(const QFilenameEdit);
+    return d->lineEdit->isReadOnly();
+}
+
+void QFilenameEdit::setReadOnly(bool readOnly)
+{
+    Q_D(QFilenameEdit);
+    d->lineEdit->setReadOnly(readOnly);
+    d->toolButton->setDisabled(readOnly);
+}
+
+QString QFilenameEdit::caption() const
+{
+    Q_D(const QFilenameEdit);
+    return d->caption;
+}
+
+void QFilenameEdit::setCaption(const QString& caption)
+{
+    Q_D(QFilenameEdit);
+    d->caption = caption;
+}
+
+QString QFilenameEdit::filter() const
+{
+    Q_D(const QFilenameEdit);
+    return d->filter;
+}
+
+void QFilenameEdit::setFilter(const QString& filter)
+{
+    Q_D(QFilenameEdit);
+    d->filter = filter;
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Widgets/qFilenameEdit.h b/src/UFEUI/Widgets/qFilenameEdit.h
new file mode 100644
index 0000000..41a2127
--- /dev/null
+++ b/src/UFEUI/Widgets/qFilenameEdit.h
@@ -0,0 +1,71 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_Q_FILENAME_EDIT_H
+#define UFEUI_Q_FILENAME_EDIT_H
+
+#include <UFEUI/ufeUiAPI.h>
+
+#include <QtWidgets/QWidget>
+
+namespace UfeUi {
+
+class QFilenameEditPrivate;
+
+/** A widget consisting of a QLineEdit with a QToolbutton to pick a file. */
+class UFEUIAPI QFilenameEdit : public QWidget
+{
+    Q_OBJECT
+    Q_PROPERTY(QString filename READ filename WRITE setFilename NOTIFY filenameChanged);
+    Q_PROPERTY(bool readOnly READ readOnly WRITE setReadOnly);
+    Q_PROPERTY(QString filter READ filter WRITE setFilter);
+    Q_PROPERTY(QString caption READ caption WRITE setCaption);
+
+public:
+    explicit QFilenameEdit(QWidget* parent = nullptr);
+    ~QFilenameEdit() override;
+
+    QString filename() const;
+    void    setFilename(const QString& filename);
+
+    QString initialDirectory() const;
+    void    setInitialDirectory(const QString& initialDirectory);
+
+    /** The base directory is the directory to which the filename is seen as
+     * relative to. The real (absolute) path to the file would be the
+     * combination of the base directory and the relative filename appended. */
+    QString baseDirectory() const;
+    void    setBaseDirectory(const QString& baseDirectory);
+
+    bool readOnly() const;
+    void setReadOnly(bool readOnly);
+
+    QString caption() const;
+    void    setCaption(const QString& caption);
+
+    QString filter() const;
+    void    setFilter(const QString& filter);
+
+Q_SIGNALS:
+    void filenameChanged(const QString& filename);
+
+private:
+    const std::unique_ptr<QFilenameEditPrivate> d_ptr;
+    Q_DECLARE_PRIVATE(QFilenameEdit)
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_Q_FILENAME_EDIT_H
diff --git a/src/UFEUI/Widgets/qSpinnerOverlayWidget.cpp b/src/UFEUI/Widgets/qSpinnerOverlayWidget.cpp
new file mode 100644
index 0000000..8d53ce2
--- /dev/null
+++ b/src/UFEUI/Widgets/qSpinnerOverlayWidget.cpp
@@ -0,0 +1,106 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QSpinnerOverlayWidget.h"
+
+#include <QtWidgets/QApplication>
+
+namespace UfeUi {
+
+QSpinnerOverlayWidget::QSpinnerOverlayWidget(QWidget* target)
+    : QLabel { target }
+{
+    _resizeEventFilter
+        = std::make_unique<ResizeEventFilter>(target, [this]() { onTargetResized(); });
+    target->installEventFilter(_resizeEventFilter.get());
+
+    _infoColor = QApplication::palette().color(QPalette::Active, QPalette::WindowText);
+
+    // Center the text within the bounds of the target, and make sure long text can wrap around its
+    // width:
+    setAlignment({ Qt::AlignCenter | Qt::AlignVCenter | Qt::TextWordWrap });
+    setWordWrap(true);
+
+    hide();
+}
+
+void QSpinnerOverlayWidget::startSpinning() { setMode(MODE::SPINNER); }
+
+void QSpinnerOverlayWidget::startProgress() { setMode(MODE::PROGRESS); }
+
+void QSpinnerOverlayWidget::setProgress(float currentProgress)
+{
+    _spinnerWidget->setProgress(currentProgress);
+}
+
+void QSpinnerOverlayWidget::showErrorMessage(const QString& message)
+{
+    setMode(MODE::ERROR_TEXT, message);
+}
+
+bool QSpinnerOverlayWidget::showInformationMessage(const QString& message)
+{
+    if (_mode == MODE::ERROR_TEXT) {
+        return false;
+    } else {
+        setMode(MODE::INFORMATION_TEXT, message);
+        return true;
+    }
+}
+
+void QSpinnerOverlayWidget::hide(bool hideErrorMessage)
+{
+    if (!hideErrorMessage && _mode == MODE::ERROR_TEXT) {
+        // If an error was displayed, make sure it remains visible:
+        return;
+    }
+    setMode(MODE::OFF);
+}
+
+void QSpinnerOverlayWidget::setMode(MODE mode, const QString& message)
+{
+    if (mode == MODE::SPINNER) {
+        _spinnerWidget->startSpinning();
+    } else if (mode == MODE::PROGRESS) {
+        _spinnerWidget->startProgress();
+    } else {
+        _spinnerWidget->hide();
+    }
+
+    if (mode == MODE::ERROR_TEXT || mode == MODE::INFORMATION_TEXT) {
+        QString formattedPayload = message;
+        formattedPayload.replace("\n", "<br>");
+
+        QColor textColor = mode == MODE::ERROR_TEXT ? _errorColor : _infoColor;
+        setText(QString("<font style=\"color: %1;\">%2</font>")
+                    .arg(textColor.name())
+                    .arg(formattedPayload));
+    } else {
+        setText("");
+    }
+
+    setVisible(mode != MODE::OFF);
+
+    this->_mode = mode;
+}
+
+void QSpinnerOverlayWidget::onTargetResized()
+{
+    QSize parentSize = parentWidget()->size();
+    resize(parentSize);
+    _spinnerWidget->resize(parentSize);
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Widgets/qSpinnerOverlayWidget.h b/src/UFEUI/Widgets/qSpinnerOverlayWidget.h
new file mode 100644
index 0000000..dc0daab
--- /dev/null
+++ b/src/UFEUI/Widgets/qSpinnerOverlayWidget.h
@@ -0,0 +1,119 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_QSPINNER_OVERLAY_WIDGET_H
+#define UFEUI_QSPINNER_OVERLAY_WIDGET_H
+
+#include "qSpinnerWidget.h"
+#include "resizeEventFilter.h"
+
+#include <UFEUI/UFEUIAPI.h>
+
+#include <QtWidgets/QLabel.h>
+#include <memory>
+
+namespace UfeUi {
+
+/**
+ * \brief Qt Widget to overlay a Spinner on top of a target Widget in order to convey information to the User.
+ * \remarks Inspired from the behavior of the Shotgun progress indicator.
+ */
+class UFEUIAPI QSpinnerOverlayWidget : public QLabel
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param target A reference to the Widget on top of which this overlay should be displayed.
+     */
+    explicit QSpinnerOverlayWidget(QWidget* target);
+
+    /**
+     * \brief Show the overlay and start animating the Spinner.
+     */
+    void startSpinning();
+
+    /**
+     * \brief Show the overlay and display an animated progress arc representing the progress of an ongoing task.
+     */
+    void startProgress();
+
+    /**
+     * \brief Set the current progress of the ongoing task.
+     * \param currentProgress Current progress of the task, in the [0.0;1.0] range.
+     */
+    void setProgress(float currentProgress);
+
+    /**
+     * \brief Display an error message to the User.
+     * \param message The error message to display to the User (supporting HTML).
+     */
+    void showErrorMessage(const QString& message);
+
+    /**
+     * \brief Display an information message to the User.
+     * \param message The information message to display to the User.
+     * \return A flag indicating if the message was displayed to the User (supporting HTML).
+     */
+    bool showInformationMessage(const QString& message);
+
+    /**
+     * \brief Hide the overlay.
+     * \param hideErrorMessage A flag indicating if the error message should also be hidden along with the overlay.
+     */
+    void hide(bool hideErrorMessage = true);
+
+protected:
+    /// Mode in which the Spinner can be:
+    enum class MODE
+    {
+        OFF,     ///< Overlay is hidden.
+        SPINNER, ///< Overlay is shown and its Spinner is in "spinner" mode, displaying a rotating
+                 ///< arc.
+        ERROR_TEXT,       ///< Overlay is shown, along with an error message.
+        INFORMATION_TEXT, ///< Overlay is shown, along with an information message.
+        PROGRESS, ///< Overlay is shown and its Spinner is in "progress" mode, displaying a arc.
+        LAST      ///< Last item in the list of supported Modes.
+    };
+
+    /**
+     * \brief Set the state of the overlay and its Spinner Widget.
+     * \param mode The new Mode in which to set the Widget.
+     * \param message A message to display to the User when the mode is either "ERROR_TEXT" or "INFORMATION_TEXT".
+     */
+    void setMode(MODE mode, const QString& message = "");
+
+    /**
+     * \brief Callback executed when the target Widget has been resized.
+     */
+    void onTargetResized();
+
+protected:
+    /// Current Mode of the Overlay:
+    MODE _mode { MODE::OFF };
+
+    /// Color of the error message text:
+    QColor _errorColor { 255, 0, 0 };
+    /// Color of the information message text:
+    QColor _infoColor;
+
+    /// Event filter used to handle notifications about the overlayed Widget being resized:
+    std::unique_ptr<ResizeEventFilter> _resizeEventFilter;
+    /// Spinner widget used to display information to the User about the progress of a task:
+    std::unique_ptr<QSpinnerWidget> _spinnerWidget { std::make_unique<QSpinnerWidget>(this) };
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_QSPINNER_OVERLAY_WIDGET_H
diff --git a/src/UFEUI/Widgets/qSpinnerWidget.cpp b/src/UFEUI/Widgets/qSpinnerWidget.cpp
new file mode 100644
index 0000000..744c136
--- /dev/null
+++ b/src/UFEUI/Widgets/qSpinnerWidget.cpp
@@ -0,0 +1,135 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "QSpinnerWidget.h"
+
+#include <cmath>
+
+namespace UfeUi {
+
+QSpinnerWidget::QSpinnerWidget(QWidget* parent)
+    : QWidget { parent }
+{
+    setVisible(false);
+
+    connect(&_timer, &QTimer::timeout, this, &QSpinnerWidget::drawNewFrame);
+}
+
+void QSpinnerWidget::startSpinning()
+{
+    setVisible(true);
+
+    _timer.start(40);
+    _mode = MODE::SPINNER;
+}
+
+void QSpinnerWidget::startProgress()
+{
+    setVisible(true);
+
+    _timer.start(1000 / UPDATES_PER_SECOND);
+    _mode = MODE::PROGRESS;
+    _spinAngle = 0.0f;
+    _spinAngleTo = 0.0f;
+}
+
+void QSpinnerWidget::setProgress(float currentProgress)
+{
+    _spinAngle = std::max(_previousSpinAngleTo, _spinAngle);
+    _spinAngleTo = 360.0f * currentProgress;
+
+    repaint();
+}
+
+void QSpinnerWidget::hide()
+{
+    setVisible(false);
+
+    _timer.stop();
+    _mode = MODE::OFF;
+}
+
+void QSpinnerWidget::drawNewFrame()
+{
+    if (_mode == MODE::SPINNER) {
+        _spinAngle += 1.0f;
+        if (_spinAngle >= 90.0f) {
+            _spinAngle = 0.0f;
+        }
+    } else if (_mode == MODE::PROGRESS) {
+        // The progress attempts to maintain a smooth impression of the progress: instead of jumping
+        // straight to the requested value, it will slide over to it.
+        //
+        // Sliding from 0.0 to 1.0 is done in a single second, so the sliding is quick to the eye.
+        // If there are more than UPDATES_PER_SECOND steps, this sliding effect is actually not
+        // visible since individual increments between steps will be smaller than 1.0 /
+        // UPDATES_PER_SECOND of the circumference.
+        _spinAngle = std::min(_spinAngleTo, _spinAngle + 360.0f / UPDATES_PER_SECOND);
+        _heartBeat = ++_heartBeat % UPDATES_PER_SECOND;
+    }
+
+    repaint();
+}
+
+void QSpinnerWidget::drawOpenedCircle(QPainter& painter, float startAngle, float spanAngle)
+{
+    QPen pen(_baseColor);
+    pen.setWidth(3);
+    painter.setPen(pen);
+    painter.translate(
+        (painter.device()->width() - SPINNER_DIMENSION) / 2,
+        (painter.device()->height() - SPINNER_DIMENSION) / 2);
+    painter.drawArc(
+        QRect(0, 0, SPINNER_DIMENSION, SPINNER_DIMENSION), startAngle * 16, spanAngle * 16);
+}
+
+void QSpinnerWidget::drawHeartBeat(QPainter& painter)
+{
+    float halfUpdate = UPDATES_PER_SECOND / 2.0f;
+    float amplitude = (std::fabs(_heartBeat - halfUpdate) / halfUpdate) * 6.0f;
+    float angle = (_spinAngle - 90.0f) * M_PI / 180.0f;
+    float offset = (SPINNER_DIMENSION - amplitude) / 2.0f;
+
+    QPen   pen(_baseColor);
+    QBrush brush(_baseColor);
+    pen.setWidth(1);
+    painter.setPen(pen);
+    painter.setBrush(brush);
+    painter.drawEllipse(QRectF(
+        std::cosf(angle) * (SPINNER_DIMENSION / 2.0f) + offset,
+        std::sinf(angle) * (SPINNER_DIMENSION / 2.0f) + offset,
+        amplitude,
+        amplitude));
+}
+
+void QSpinnerWidget::paintEvent(QPaintEvent* e)
+{
+    if (_mode != MODE::OFF) {
+        QPainter painter(this);
+        painter.begin(this);
+        painter.setRenderHint(QPainter::Antialiasing);
+
+        if (_mode == MODE::SPINNER) {
+            drawOpenedCircle(painter, -_spinAngle * 4, 340);
+        } else if (_mode == MODE::PROGRESS) {
+            drawOpenedCircle(painter, 90, -_spinAngle);
+            drawHeartBeat(painter);
+        }
+
+        painter.end();
+    }
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Widgets/qSpinnerWidget.h b/src/UFEUI/Widgets/qSpinnerWidget.h
new file mode 100644
index 0000000..19037eb
--- /dev/null
+++ b/src/UFEUI/Widgets/qSpinnerWidget.h
@@ -0,0 +1,125 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_QSPINNER_WIDGET_H
+#define UFEUI_QSPINNER_WIDGET_H
+
+#include <QtCore/QTimer.h>
+#include <QtGui/QPainter.h>
+#include <QtWidgets/QWidget.h>
+
+namespace UfeUi {
+
+/**
+ * \brief Widget to display a spinner or report progress about on ongoing task.
+ * \remarks Inspired from the behavior of the Shotgun progress indicator.
+ */
+class QSpinnerWidget : public QWidget
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param parent A reference to the parent of the Spinner.
+     */
+    explicit QSpinnerWidget(QWidget* parent = nullptr);
+
+    /**
+     * \brief Start animating the Spinner.
+     */
+    void startSpinning();
+
+    /**
+     * \brief Show an animated progress arc representing the progress of an ongoing task.
+     */
+    void startProgress();
+
+    /**
+     * \brief Set the current progress of the ongoing task.
+     * \param currentProgress Current progress of the task, in the [0.0;1.0] range.
+     */
+    void setProgress(float currentProgress);
+
+    /**
+     * \brief Hide the Spinner.
+     */
+    void hide();
+
+protected:
+    /**
+     * \brief Draw a new frame for the Spinner.
+     */
+    void drawNewFrame();
+
+    /**
+     * \brief Draw an arc.
+     * \param painter Painter with which to draw.
+     * \param startAngle Angle at which to start drawing the arc (in degrees).
+     * \param spanAngle Angle the arc covers (in degrees).
+     */
+    void drawOpenedCircle(QPainter& painter, float startAngle, float spanAngle);
+
+    /**
+     * \brief Draw the heartbeat cursor of the progress, to provide feedback to the User and avoid making it look like
+     * the UI is frozen when the progress is not being updated.
+     * \param painter Painter with which to draw.
+     */
+    void drawHeartBeat(QPainter& painter);
+
+    /**
+     * \brief Paint the Spinner widget on screen.
+     * \param e Data associated to the Paint event.
+     */
+    void paintEvent(QPaintEvent* e);
+
+protected:
+    /// Mode in which the Spinner can be:
+    enum class MODE
+    {
+        OFF,      ///< Spinner is off.
+        SPINNER,  ///< Spinner is in "spinner" mode, displaying a rotating arc.
+        PROGRESS, ///< Spinner is in "progress" mode, displaying a arc representing progress
+                  ///< percentage.
+        LAST      ///< Last item in the list of supported Modes.
+    };
+
+    /// Number of redraws to perform per second:
+    static constexpr unsigned short UPDATES_PER_SECOND { 25 };
+    /// Spinner dimension (in pixels):
+    static constexpr size_t SPINNER_DIMENSION { 80 };
+
+    /// Current Mode of the Spinner:
+    MODE _mode { MODE::OFF };
+
+    /// Base color of the Spinner:
+    QColor _baseColor { 255, 255, 255 };
+
+    /// Timer used to update the animation of the spinner:
+    QTimer _timer { this };
+
+    /// Current spinner angle:
+    float _spinAngle { 0.0f };
+    /// Target angle towards which to spin:
+    float _spinAngleTo { 0.0f };
+    /// Spinner angle at the time of the last paint:
+    float _previousSpinAngleTo { 0.0f };
+
+    /// Heartbeat counter indicating how many ticks occured during the last second, in order to draw
+    /// the size of the heartbeat indicator:
+    int _heartBeat { 0 };
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_QSPINNER_WIDGET_H
diff --git a/src/UFEUI/Widgets/resizeEventFilter.cpp b/src/UFEUI/Widgets/resizeEventFilter.cpp
new file mode 100644
index 0000000..ba5abc8
--- /dev/null
+++ b/src/UFEUI/Widgets/resizeEventFilter.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ResizeEventFilter.h"
+
+namespace UfeUi {
+
+ResizeEventFilter::ResizeEventFilter(QObject* target, const std::function<void()>& onResize)
+    : QObject { target }
+    , _onResize { onResize }
+{
+    // Nothing to do.
+}
+
+bool ResizeEventFilter::eventFilter(QObject* object, QEvent* e)
+{
+    if (e->type() == QEvent::Resize) {
+        _onResize();
+    }
+
+    // Do not block the event from being broadcasted to other listeners:
+    return false;
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/Widgets/resizeEventFilter.h b/src/UFEUI/Widgets/resizeEventFilter.h
new file mode 100644
index 0000000..033e6a3
--- /dev/null
+++ b/src/UFEUI/Widgets/resizeEventFilter.h
@@ -0,0 +1,54 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_RESIZE_EVENT_FILTER_H
+#define UFEUI_RESIZE_EVENT_FILTER_H
+
+#include <QtCore/QEvent>
+#include <QtCore/QObject>
+#include <functional>
+
+namespace UfeUi {
+
+/**
+ * \brief Qt event filter for Widget resize events.
+ * \remarks This should be moved to an properly-supported Qt objects using "Q_OBJECT" and "signals" notation, once the
+ * transition to newer 3ds Max version with Qt project settings is supported.
+ */
+class ResizeEventFilter : public QObject
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param target A reference to the Object whose resize event should be listened to.
+     * \param onResize Callback to execute upon receiving a resize notification from the given target.
+     */
+    ResizeEventFilter(QObject* target, const std::function<void()>& onResize);
+
+    /**
+     * \brief Event handler executed upon receiving event notifications from the targeted Widget.
+     * \param object A reference to the object emitting the event.
+     * \param e Data about the event that was emitted.
+     */
+    bool eventFilter(QObject* object, QEvent* e) override;
+
+protected:
+    /// Callback to execute upon receiving a resize notification from the given target.
+    std::function<void()> _onResize;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_RESIZE_EVENT_FILTER_H
diff --git a/src/UFEUI/editCommand.cpp b/src/UFEUI/editCommand.cpp
new file mode 100644
index 0000000..b5f105f
--- /dev/null
+++ b/src/UFEUI/editCommand.cpp
@@ -0,0 +1,35 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "editCommand.h"
+
+namespace UfeUi {
+
+EditCommand::CreatorFunc EditCommand::editCmdCreatorFunc;
+
+EditCommand::Ptr EditCommand::create(
+    const Ufe::Path&                 path,
+    const Ufe::UndoableCommand::Ptr& undoableCommand,
+    const std::string&               commandString)
+{
+    return editCmdCreatorFunc(path, undoableCommand, commandString);
+}
+
+void EditCommand::initializeCreator(EditCommand::CreatorFunc creatorFunc)
+{
+    editCmdCreatorFunc = creatorFunc;
+}
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/editCommand.h b/src/UFEUI/editCommand.h
new file mode 100644
index 0000000..7692477
--- /dev/null
+++ b/src/UFEUI/editCommand.h
@@ -0,0 +1,124 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "UFEUIAPI.h"
+
+#include <ufe/undoableCommand.h>
+
+#include <functional>
+#include <memory>
+
+namespace UfeUi {
+
+/**
+ * \brief An edit command wraps a UFE undoable command, and allows to configure
+ * pre and post execution behaviors for execute, undo, and redo by deriving from
+ * it.
+ */
+class UFEUIAPI EditCommand : public Ufe::UndoableCommand
+{
+public:
+    using Ptr = std::shared_ptr<EditCommand>;
+
+    /**
+     * \brief Constructor, prefer using create().
+     * \param itemPath The path of the item concerned.
+     * \param wrapped The undoable command to wrap.
+     */
+    EditCommand(
+        const Ufe::Path&                 itemPath,
+        const Ufe::UndoableCommand::Ptr& wrapped,
+        const std::string&               commandString)
+        : _wrappedCmd(wrapped)
+        , _itemPath(itemPath)
+        , _commandString(commandString)
+    {
+    }
+
+    /**
+     * \brief Get a user friendly string representation of the command.
+     * \note For example, an application can print out the executed command to
+     *       give an hint to the user of what was successfully done or to
+     *       describe an undo step on the undo stack.
+     */
+    std::string commandString() const override { return _commandString; }
+
+    /**
+     * \brief Code executed before the command is executed, undone, or redone.
+     */
+    virtual void pre() { }
+
+    /**
+     * \brief Code executed after the command is executed, undone, or redone.
+     */
+    virtual void post() { }
+
+    /**
+     * \brief The UFE path of the item on which the command is performed.
+     * \return The UFE path.
+     */
+    Ufe::Path& itemPath() { return _itemPath; }
+
+    /**
+     * \brief Creates a new edit command.
+     * \param itemPath The path of the item concerned.
+     * \param wrapped The undoable command to wrap.
+     */
+    static EditCommand::Ptr create(
+        const Ufe::Path&                 path,
+        const Ufe::UndoableCommand::Ptr& wrapped,
+        const std::string&               commandString);
+
+    using CreatorFunc = std::function<
+        EditCommand::Ptr(const Ufe::Path&, const Ufe::UndoableCommand::Ptr&, const std::string&)>;
+    /**
+     * \brief Initializes the create function used to create EditCommands. This
+     * allows the DCC to derive EditCommand, and have the derived class be used
+     * by UFEUI.
+     * \param creatorFunc The EditCommand creation function.
+     */
+    static void initializeCreator(CreatorFunc creatorFunc);
+
+protected:
+    //! Undoable command overrides.
+    void execute() override
+    {
+        pre();
+        _wrappedCmd->execute();
+        post();
+    }
+    void undo() override
+    {
+        pre();
+        _wrappedCmd->undo();
+        post();
+    }
+    void redo() override
+    {
+        pre();
+        _wrappedCmd->redo();
+        post();
+    }
+
+    Ufe::UndoableCommand::Ptr _wrappedCmd;
+    Ufe::Path                 _itemPath;
+    std::string               _commandString;
+
+    static CreatorFunc editCmdCreatorFunc;
+};
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/explorerSearchThread.cpp b/src/UFEUI/explorerSearchThread.cpp
new file mode 100644
index 0000000..55862b6
--- /dev/null
+++ b/src/UFEUI/explorerSearchThread.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ExplorerSearchThread.h"
+
+#include "Views/Explorer.h"
+
+#include <ufe/hierarchy.h>
+
+namespace UfeUi {
+
+ExplorerSearchThread::ExplorerSearchThread(
+    const Ufe::SceneItem::Ptr&         rootItem,
+    const TreeColumns&                 columns,
+    const std::string&                 searchFilter,
+    const TypeFilter&                  typeFilter,
+    const Ufe::Hierarchy::ChildFilter& childFilter,
+    QObject*                           parent)
+    : QThread { parent }
+    , _rootItem { rootItem }
+    , _columns { columns }
+    , _searchFilter { searchFilter }
+    , _typeFilter { typeFilter }
+    , _childFilter { childFilter }
+{
+    // Nothing to do.
+}
+
+std::unique_ptr<TreeModel> ExplorerSearchThread::consumeResults() { return std::move(_results); }
+
+void ExplorerSearchThread::run()
+{
+    _results = TreeModel::create(_columns, nullptr);
+    _results->buildTreeFrom(
+        _results->root(), _rootItem, _searchFilter, _typeFilter, _childFilter, true);
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/explorerSearchThread.h b/src/UFEUI/explorerSearchThread.h
new file mode 100644
index 0000000..5e91ae9
--- /dev/null
+++ b/src/UFEUI/explorerSearchThread.h
@@ -0,0 +1,81 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_EXPLORER_SEARCH_THREAD
+#define UFEUI_EXPLORER_SEARCH_THREAD
+
+#include "ItemSearch.h"
+#include "TreeColumn.h"
+#include "TreeModel.h"
+#include "UFEUIAPI.h"
+
+#include <QtCore/QThread.h>
+
+namespace UfeUi {
+
+class TreeModel;
+
+/**
+ * \brief Thread used to identify specific UFE items within a UFE subtree.
+ */
+class UFEUIAPI ExplorerSearchThread : public QThread
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param rootItem The root Ufe scene item we are searching from.
+     * \param columns Columns in for the explorer.
+     * \param searchFilter The search filter against which to try and match UFE item in the Scene.
+     * \param TypeFilter The Type filtering config. Include or exclude item types by name.
+     * \param childFilter Ufe Hierarchy child filter, filters item when traversing the
+     * hierarchy. Used by the runtime hierarchy implementation.
+     * \param parent A reference to the parent of the thread.
+     */
+    explicit ExplorerSearchThread(
+        const Ufe::SceneItem::Ptr&         rootItem,
+        const TreeColumns&                 columns,
+        const std::string&                 searchFilter,
+        const TypeFilter&                  typeFilter,
+        const Ufe::Hierarchy::ChildFilter& childFilter,
+        QObject*                           parent = nullptr);
+
+    /**
+     * \brief Consume the TreeModel built from the results of the search performed within the UFE subtree.
+     * \return The TreeModel built from the results of the search performed within the UFE subtree.
+     */
+    std::unique_ptr<TreeModel> consumeResults();
+
+protected:
+    /**
+     * \brief Perform the search in the Qt thread.
+     */
+    void run() override;
+
+    Ufe::SceneItem::Ptr _rootItem;
+    TreeColumns         _columns;
+
+    /// Search filter against which to try and match UFE items in the scene:
+    std::string _searchFilter;
+    /// Type fitltering configuration :
+    TypeFilter _typeFilter;
+    /// Hierarchy child filter, used to filter children when traversing.
+    Ufe::Hierarchy::ChildFilter _childFilter;
+    /// Reference to the TreeModel built from the search performed within the UFE scene:
+    std::unique_ptr<TreeModel> _results;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_EXPLORER_SEARCH_THREAD
diff --git a/src/UFEUI/genericCommand.h b/src/UFEUI/genericCommand.h
new file mode 100644
index 0000000..9ef9dcb
--- /dev/null
+++ b/src/UFEUI/genericCommand.h
@@ -0,0 +1,102 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UFEUI_GENERIC_COMMAND_H
+#define UFEUI_GENERIC_COMMAND_H
+
+#include "UFEUIAPI.h"
+
+#include <ufe/undoableCommand.h>
+
+#include <functional>
+#include <memory.h>
+
+namespace UfeUI {
+
+/** GenericCommand can be used to make some generic functionality undo-able.
+ * To use this class, pass a std::function<void(Mode mode)> to the constructor.
+ * This function will be called when the command is undone or redone passing the
+ * respective Mode.
+ * When using a lambda to do so, please make sure that the lambda is copyable or
+ * move-able and consider the life-time of the captures inside the lambda. */
+class GenericCommand : public Ufe::UndoableCommand
+{
+public:
+    using Ptr = std::shared_ptr<GenericCommand>;
+
+    enum class Mode
+    {
+        kRedo,
+        kUndo
+    };
+
+    using Callback = std::function<void(Mode mode)>;
+
+    /** Constructor
+     * \param callback The functionality to be called during undo and redo.
+     * \param commandString User friendly string representation of the command. */
+    GenericCommand(const Callback& callback, const std::string& commandString)
+        : _callback { callback }
+        , _commandString { commandString }
+    {
+    }
+
+    /** Constructor
+     * \param callback The functionality to be called during undo and redo.
+     * \param commandString User friendly string representation of the command. */
+    GenericCommand(Callback&& callback, const std::string& commandString)
+        : _callback { callback }
+        , _commandString { commandString }
+    {
+    }
+
+    // Get a user friendly string representation of the command.
+    std::string commandString() const override { return _commandString; }
+
+    /** On undo this command executes the given callback function in UNDO Mode. */
+    void undo() override
+    {
+        if (_callback) {
+            _callback(Mode::kUndo);
+        }
+    }
+
+    /** On undo this command executes the given callback function in REDO Mode. */
+    void redo() override
+    {
+        if (_callback) {
+            _callback(Mode::kRedo);
+        }
+    }
+
+    static Ptr create(const Callback& callback, const std::string& commandString)
+    {
+        return std::make_shared<GenericCommand>(callback, commandString);
+    }
+
+    static Ptr create(Callback&& callback, const std::string& commandString)
+    {
+        return std::make_shared<GenericCommand>(callback, commandString);
+    }
+
+private:
+    Callback    _callback;
+    std::string _commandString;
+};
+
+} // namespace UfeUI
+
+#endif // UFEUI_REPLACE_SELECTION_COMMAND_H
\ No newline at end of file
diff --git a/src/UFEUI/highlightItemDelegate.cpp b/src/UFEUI/highlightItemDelegate.cpp
new file mode 100644
index 0000000..fb00ec3
--- /dev/null
+++ b/src/UFEUI/highlightItemDelegate.cpp
@@ -0,0 +1,70 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "highlightItemDelegate.h"
+
+#include <QtWidgets/QApplication>
+#include <QtWidgets/qstyleditemdelegate.h>
+#include <QtWidgets/qstyleoption.h>
+
+namespace UfeUi {
+
+void HighlightItemDelegate::paint(
+    QPainter*                   painter,
+    const QStyleOptionViewItem& option,
+    const QModelIndex&          index) const
+{
+    QStyleOptionViewItem itemOption(option);
+    initStyleOption(&itemOption, index);
+
+    // Display selection if actually selected, or if ancestor of an collapsed selected item.
+    const bool ancestorHighlight
+        = std::find(_selectionAncestors->begin(), _selectionAncestors->end(), index)
+        != _selectionAncestors->end();
+    if (itemOption.state & QStyle::State_Selected || ancestorHighlight) {
+        // Disable focus flag to avoid ugly dotted lines on selected items.
+        itemOption.state.setFlag(QStyle::State_HasFocus, false);
+        if (ancestorHighlight) {
+            itemOption.backgroundBrush = QBrush { _ancestorHighlightColor };
+        }
+        // On selected items, the disabled color is barely visible. Make a special
+        // case to replace it with black.
+        const auto textColor = itemOption.palette.color(QPalette::Text);
+        const auto disabledColor
+            = QApplication::palette().color(QPalette::Disabled, QPalette::WindowText);
+        if (textColor == disabledColor) {
+            if (ancestorHighlight) {
+                // When hovering an item that is not truely selected, the background color changes
+                // and with that color as background, we dont want to override.
+                if (!itemOption.state.testFlag(QStyle::State_MouseOver)) {
+                    itemOption.palette.setColor(QPalette::Text, Qt::black);
+                }
+            } else {
+                itemOption.palette.setColor(QPalette::HighlightedText, Qt::black);
+            }
+        } else {
+            // For some reason, if we draw the control ourselves, the highlight color is not
+            // initialized, and would render black. We want it to be the same color as the
+            // regular text color.
+            itemOption.palette.setColor(QPalette::HighlightedText, textColor);
+        }
+        QApplication::style()->drawControl(QStyle::CE_ItemViewItem, &itemOption, painter, nullptr);
+        return;
+    }
+    QStyledItemDelegate::paint(painter, itemOption, index);
+}
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/highlightItemDelegate.h b/src/UFEUI/highlightItemDelegate.h
new file mode 100644
index 0000000..49ed738
--- /dev/null
+++ b/src/UFEUI/highlightItemDelegate.h
@@ -0,0 +1,45 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+#include <QtGui/qcolor.h>
+#include <QtWidgets/qstyleditemdelegate.h>
+#include <QtWidgets/qstyleoption.h>
+
+namespace UfeUi {
+
+class HighlightItemDelegate : public QStyledItemDelegate
+{
+public:
+    HighlightItemDelegate(
+        const std::vector<QPersistentModelIndex>* ancestorHighlights,
+        const QColor&                             color,
+        QObject*                                  parent = nullptr)
+        : QStyledItemDelegate(parent)
+        , _selectionAncestors(ancestorHighlights)
+        , _ancestorHighlightColor(color)
+    {
+    }
+
+    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index)
+        const override;
+
+private:
+    const std::vector<QPersistentModelIndex>* _selectionAncestors;
+    QColor                                    _ancestorHighlightColor;
+};
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/icon.cpp b/src/UFEUI/icon.cpp
new file mode 100644
index 0000000..9f97e29
--- /dev/null
+++ b/src/UFEUI/icon.cpp
@@ -0,0 +1,140 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "icon.h"
+
+#include "utils.h"
+
+#include <QtGui/qpainter.h>
+#include <unordered_map>
+
+namespace UfeUi {
+namespace Icon {
+
+QIcon build(const Ufe::UIInfoHandler::Icon& ufeIcon)
+{
+    const auto resourceString = [](const QString& name) {
+        static const QString iconResBase = ":/ufe/Icons/UfeRt/";
+        return iconResBase + name;
+    };
+
+    // Build a key for the icon, used for caching.
+    size_t hash;
+    Utils::hashCombine(hash, ufeIcon.baseIcon);
+    Utils::hashCombine(hash, ufeIcon.badgeIcon);
+    Utils::hashCombine(hash, ufeIcon.pos);
+    Utils::hashCombine(hash, ufeIcon.mode);
+
+    static std::unordered_map<size_t, QPixmap> pixmapCache;
+
+    const auto it = pixmapCache.find(hash);
+    if (it != pixmapCache.end()) {
+        return QIcon { it->second };
+    }
+
+    const auto baseIconRes = resourceString(QString::fromStdString(ufeIcon.baseIcon));
+    QPixmap    pixmap(baseIconRes);
+
+    // If there is a badge - draw it on top of the base icon.
+    if (!ufeIcon.badgeIcon.empty()) {
+        const auto badgeIconRes = resourceString(QString::fromStdString(ufeIcon.badgeIcon));
+        QPixmap    badgePixmap(badgeIconRes);
+        QPainter   painter(&pixmap);
+
+        // Badges can be in any of the four quadrants of the base icon.
+        // Figure out the draw position (top left corner) of the base.
+        int x, y;
+        switch (ufeIcon.pos) {
+        case Ufe::UIInfoHandler::UpperLeft:
+            x = 0;
+            y = 0;
+            break;
+        case Ufe::UIInfoHandler::UpperRight:
+            x = pixmap.width() / 2;
+            y = 0;
+            break;
+        case Ufe::UIInfoHandler::LowerLeft:
+            x = 0;
+            y = pixmap.height() / 2;
+            break;
+        case Ufe::UIInfoHandler::LowerRight:
+        default: // Default to lower right.
+            x = pixmap.width() / 2;
+            y = pixmap.height() / 2;
+            break;
+        }
+        painter.drawPixmap(x, y, badgePixmap);
+    }
+
+    pixmapCache.insert({ hash, pixmap });
+    return QIcon { pixmap };
+}
+
+void drawCentered(QPainter& painter, const QIcon& icon, const QRect& rect)
+{
+    const static int fixedHeight = 16;
+    const auto       iconHeight = fixedHeight * Utils::dpiScale();
+    // Figure out the possible size for the icon, given the fixed height.
+    const auto rectSize = rect.size();
+    auto       size = icon.actualSize(QSize(rectSize.width(), iconHeight));
+    if (size.width() == 0) {
+        return;
+    }
+    // If the width doesn't fit, adjust.
+    if (rectSize.width() < size.width()) {
+        size = size * (static_cast<double>(rectSize.width()) / static_cast<double>(size.width()));
+    }
+    // Draw at the center.
+    const QPixmap pixmap = icon.pixmap(size);
+    const QPoint  offset
+        = QPoint((rect.width() - pixmap.width()) / 2, (rect.height() - pixmap.height()) / 2);
+    painter.drawPixmap(rect.topLeft() + offset, pixmap);
+}
+
+void CenteredIconHeaderStyle::drawControl(
+    ControlElement      element,
+    const QStyleOption* styleOptions,
+    QPainter*           painter,
+    const QWidget*      widget) const
+{
+    // The style only changes how the header label (icon) is drawn.
+    if (element == CE_HeaderLabel) {
+        const auto headerStyleOptions = static_cast<const QStyleOptionHeader*>(styleOptions);
+        // If not only an icon, use the base style.
+        if (headerStyleOptions->icon.isNull() || !headerStyleOptions->text.isEmpty()) {
+            baseStyle->drawControl(element, styleOptions, painter, widget);
+            return;
+        }
+        drawCentered(*painter, headerStyleOptions->icon, headerStyleOptions->rect);
+        return;
+    }
+    baseStyle->drawControl(element, styleOptions, painter, widget);
+}
+
+void CenterIconDelegate::paint(
+    QPainter*                   painter,
+    const QStyleOptionViewItem& option,
+    const QModelIndex&          index) const
+{
+    auto controlStyle = QStyleOptionViewItem(option);
+    initStyleOption(&controlStyle, index);
+    option.widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &controlStyle, painter);
+
+    const auto icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
+    drawCentered(*painter, icon, controlStyle.rect);
+}
+
+} // namespace Icon
+} // namespace UfeUi
diff --git a/src/UFEUI/icon.h b/src/UFEUI/icon.h
new file mode 100644
index 0000000..139b8da
--- /dev/null
+++ b/src/UFEUI/icon.h
@@ -0,0 +1,82 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_ICON_H
+#define UFEUI_ICON_H
+
+#include <ufe/uiInfoHandler.h>
+
+#include <QtGui/qicon.h>
+#include <QtWidgets/QHeaderView.h>
+#include <QtWidgets/QProxyStyle.h>
+#include <QtWidgets/QStyledItemDelegate.h>
+
+class QStyledItemDelegate;
+class QStyle;
+
+namespace UfeUi {
+namespace Icon {
+
+/**
+ * \brief Builds and returns a QICon from the given ufe icon. Uses an internal cache.
+ * \param ufeIcon The ufe icon.
+ * \return The created/or previously cached QIcon.
+ */
+QIcon build(const Ufe::UIInfoHandler::Icon& ufeIcon);
+
+/**
+ * \brief Draws an Icon centered, within a rectangle. Meant for usage in the UFE explorer.
+ * Uses a fixed icon height (DPI scaled).
+ * \param painter Painter object to draw the icon with.
+ * \param icon The icon to draw.
+ * \param rect Rectangle we are drawing in, will draw at center.
+ */
+void drawCentered(QPainter& painter, const QIcon& icon, const QRect& rect);
+
+/**
+ * \brief QStyle to center icon labels in a QHeaderView.
+ */
+class CenteredIconHeaderStyle : public QProxyStyle
+{
+public:
+    CenteredIconHeaderStyle(QStyle* baseStyle) { this->baseStyle = baseStyle; }
+    void drawControl(
+        ControlElement      element,
+        const QStyleOption* styleOptions,
+        QPainter*           painter,
+        const QWidget*      widget) const;
+
+private:
+    QStyle* baseStyle;
+};
+
+/**
+ * \brief Styled item delegate to center icons in item views.
+ */
+class CenterIconDelegate : public QStyledItemDelegate
+{
+public:
+    CenterIconDelegate(QObject* parent)
+        : QStyledItemDelegate(parent)
+    {
+    }
+    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index)
+        const override;
+};
+
+} // namespace Icon
+} // namespace UfeUi
+
+#endif UFEUI_ICON_H
\ No newline at end of file
diff --git a/src/UFEUI/itemSearch.cpp b/src/UFEUI/itemSearch.cpp
new file mode 100644
index 0000000..9e2283d
--- /dev/null
+++ b/src/UFEUI/itemSearch.cpp
@@ -0,0 +1,109 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ItemSearch.h"
+
+#include <ufe/hierarchy.h>
+
+#include <QtCore/QRegularExpression>
+#include <cctype>
+#include <stack>
+
+namespace UfeUi {
+
+std::vector<Ufe::SceneItem::Ptr> ItemSearch::findMatchingPaths(
+    const Ufe::SceneItem::Ptr&         sceneItem,
+    const std::string&                 searchFilter,
+    const TypeFilter&                  typeFilter,
+    const Ufe::Hierarchy::ChildFilter& childFilter)
+{
+    // Using regular expressions when searching through the set of data can be expensive compared to
+    // doing a plain text search. In addition, it may be possible for the User to want to search for
+    // content containing the "*" character instead of using this token as wildcard, which is not
+    // currently supported. In order to properly handle this, the UI could expose search options in
+    // the future, where Users would be able to pick the type of search they wish to perform (likely
+    // defaulting to a plain text search).
+    const bool useWildCardSearch = searchFilter.find('*') != std::string::npos;
+    std::vector<Ufe::SceneItem::Ptr> matchingUfeItems;
+
+    const auto root = Ufe::Hierarchy::hierarchy(sceneItem);
+
+    std::stack<Ufe::Hierarchy::Ptr> hierarchyStack;
+
+    hierarchyStack.push(root);
+
+    while (!hierarchyStack.empty()) {
+        const auto hierarchy = hierarchyStack.top();
+        hierarchyStack.pop();
+
+        for (const auto& child : hierarchy->filteredChildren(childFilter)) {
+            if (searchFilter.empty()
+                || findString(child->nodeName(), searchFilter, useWildCardSearch)) {
+                if (!typeFilter.names.empty()) {
+                    if (typeFilter.mode == TypeFilter::Mode::Include
+                        && std::find(
+                               typeFilter.names.begin(), typeFilter.names.end(), child->nodeType())
+                            == typeFilter.names.end()) {
+                        continue;
+                    }
+                    if (typeFilter.mode == TypeFilter::Mode::Exclude
+                        && std::find(
+                               typeFilter.names.begin(), typeFilter.names.end(), child->nodeType())
+                            != typeFilter.names.end()) {
+                        continue;
+                    }
+                }
+                matchingUfeItems.emplace_back(child);
+            }
+            hierarchyStack.push(Ufe::Hierarchy::hierarchy(child));
+        }
+    }
+    return matchingUfeItems;
+}
+
+bool ItemSearch::findString(
+    const std::string& haystack,
+    const std::string& needle,
+    bool               useWildCardSearch)
+{
+    // NOTE: Most of the time, the needle is unlikely to contain a wildcard search.
+    if (useWildCardSearch) {
+        // Needle contains at least one wildcard character, proceed with a regular expression
+        // search.
+
+        // NOTE: Both leading and trailing wildcards are added to the needle in order to make sure
+        // search is made against Prims whose name contains the given search filter. Otherwise,
+        // searching for "lorem*ipsum" would match "lorem_SOME-TEXT_ipsum" but not
+        // "SOME-TEXT_lorem_ipsum", which is inconvenient as too restrictive for casual Users to
+        // type. This ensure search results are handled in a similar way to Windows Explorer, for
+        // example.
+        const QRegularExpression regularExpression(
+            QString::fromStdString("*" + needle + "*"), QRegularExpression::CaseInsensitiveOption);
+        return regularExpression
+            .match(QString::fromStdString(haystack), 0, QRegularExpression::MatchType::NormalMatch)
+            .hasMatch();
+    } else {
+        // Needle does not contain any wildcard characters, use a simple case-insensitive search:
+        auto it = std::search(
+            haystack.begin(),
+            haystack.end(),
+            needle.begin(),
+            needle.end(),
+            [](char charA, char charB) { return std::toupper(charA) == std::toupper(charB); });
+        return it != haystack.end();
+    }
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/itemSearch.h b/src/UFEUI/itemSearch.h
new file mode 100644
index 0000000..22f4b6a
--- /dev/null
+++ b/src/UFEUI/itemSearch.h
@@ -0,0 +1,73 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_ITEM_SEARCH_H
+#define UFEUI_ITEM_SEARCH_H
+
+#include <ufe/hierarchy.h>
+#include <ufe/sceneItem.h>
+
+#include <string>
+#include <vector>
+
+namespace UfeUi {
+
+struct TypeFilter
+{
+    enum class Mode
+    {
+        NoFilter,
+        Include,
+        Exclude
+    };
+    Mode                     mode = Mode::NoFilter;
+    std::vector<std::string> names = {};
+};
+
+class ItemSearch
+{
+public:
+    /**
+     * \brief Return the list of UFE items matching the given search filter, based on the name of the item.
+     * \param sceneItem The UFE item to search from.
+     * \param searchFilter The search filter against which to try and match UFE items in the given subtree.
+     * \param typeFilter Type filtering config, to include or exclude items based on type name.
+     * \param childFilter Ufe Hierarchy child filter, filters item when traversing the
+     * hierarchy. Used by the runtime hierarchy implementation.
+     * \return The list of UFE scene items matching the given search filter.
+     */
+    static std::vector<Ufe::SceneItem::Ptr> findMatchingPaths(
+        const Ufe::SceneItem::Ptr&         sceneItem,
+        const std::string&                 searchFilter,
+        const TypeFilter&                  typeFilter,
+        const Ufe::Hierarchy::ChildFilter& childFilter);
+
+    /**
+     * \brief Check if the given string needle is contained in the given string haystack, in a case-insensitive way.
+     * \remarks This would benefit from being moved to another class in the future.
+     * \param haystack The haystack in which to search for the given needle.
+     * \param needle The needle to look for in the given haystack.
+     * \param useWildCardSearch A flag indicating if the search should be performed in wildcard-type.
+     * \return A flag indicating whether or not the given needle was found in the given haystack.
+     */
+    static bool findString(
+        const std::string& haystack,
+        const std::string& needle,
+        bool               useWildCardSearch = false);
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_ITEM_SEARCH_H
diff --git a/src/UFEUI/qExplorerTreeViewContextMenu.cpp b/src/UFEUI/qExplorerTreeViewContextMenu.cpp
new file mode 100644
index 0000000..072b001
--- /dev/null
+++ b/src/UFEUI/qExplorerTreeViewContextMenu.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "qExplorerTreeViewContextMenu.h"
+
+namespace UfeUi {
+
+void QExplorerTreeViewContextMenu::mouseReleaseEvent(QMouseEvent* event)
+{
+    QAction* action = actionAt(event->pos());
+
+    // If the action is checkable and the Ctrl key is pressed, trigger the action, but don't close
+    // the menu.
+    if (action && action->isCheckable()
+        && (QApplication::keyboardModifiers() & Qt::ControlModifier)) {
+        action->trigger();
+        event->ignore();
+    } else {
+        QMenu::mouseReleaseEvent(event);
+    }
+}
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/qExplorerTreeViewContextMenu.h b/src/UFEUI/qExplorerTreeViewContextMenu.h
new file mode 100644
index 0000000..1d3eb9d
--- /dev/null
+++ b/src/UFEUI/qExplorerTreeViewContextMenu.h
@@ -0,0 +1,47 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_QEXPLORER_TREEVIEW_CONTEXTMENU_H
+#define UFEUI_QEXPLORER_TREEVIEW_CONTEXTMENU_H
+
+#include <QtGui/QMouseEvent>
+#include <QtWidgets/QApplication>
+#include <QtWidgets/QMenu>
+#include <QtWidgets/QTreeView>
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+#include <QtGui/QAction>
+#else
+#include <QtWidgets/QAction>
+#endif
+
+namespace UfeUi {
+class QExplorerTreeViewContextMenu : public QMenu
+{
+public:
+    using QMenu::QMenu;
+
+protected:
+    /*
+     * Overridden mouseReleaseEvent function to handle mouse release events of this class. In
+     * particular this function is used to handle the Ctrl key press + mouse release events
+     * distinctly from standard mouse release events, in order to keep the context menu open when
+     * the Ctrl key is pressed
+     * \param event The QMouseEvent event.
+     */
+    void mouseReleaseEvent(QMouseEvent* event) override;
+};
+} // namespace UfeUi
+#endif // UFEUI_QEXPLORER_TREEVIEW_CONTEXTMENU_H
diff --git a/src/UFEUI/replaceSelectionCommand.cpp b/src/UFEUI/replaceSelectionCommand.cpp
new file mode 100644
index 0000000..70de97a
--- /dev/null
+++ b/src/UFEUI/replaceSelectionCommand.cpp
@@ -0,0 +1,80 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "ReplaceSelectionCommand.h"
+
+#include "utils.h"
+
+#include <ufe/globalSelection.h>
+#include <ufe/hierarchy.h>
+#include <ufe/observableSelection.h>
+
+// useful for debugging, so I keep it here
+// #define DBG_REPLACE_SELECTION_COMMAND
+#ifdef DBG_REPLACE_SELECTION_COMMAND
+
+#include <qdebug.h>
+namespace {
+
+QString selectionToString(const Ufe::Selection& selection)
+{
+    QStringList result;
+    for (const auto& item : selection) {
+        result << QString::fromStdString(item->nodeName());
+    }
+    return QString("[%1]").arg(result.join(", "));
+}
+
+}; // namespace
+
+#endif
+
+namespace UfeUi {
+
+ReplaceSelectionCommand::ReplaceSelectionCommand(const Ufe::Selection& selection)
+    : _previousSelection { *Ufe::GlobalSelection::get() }
+    , _selection { selection }
+{
+#ifdef DBG_REPLACE_SELECTION_COMMAND
+    qDebug() << "ReplaceSelectionCommand::CREATE -> " << selectionToString(_previousSelection)
+             << " to " << selectionToString(_selection);
+
+    if (Utils::selectionsAreEquivalent(_selection, _previousSelection)) {
+        qDebug() << "ReplaceSelectionCommand::CREATE with equivalent selections!";
+    }
+#endif
+}
+
+void ReplaceSelectionCommand::undo()
+{
+#ifdef DBG_REPLACE_SELECTION_COMMAND
+    qDebug() << "ReplaceSelectionCommand::UNDO -> selecting "
+             << selectionToString(_previousSelection);
+#endif
+
+    Ufe::GlobalSelection::get()->replaceWith(_previousSelection);
+}
+
+void UfeUi::ReplaceSelectionCommand::redo()
+{
+#ifdef DBG_REPLACE_SELECTION_COMMAND
+    qDebug() << "ReplaceSelectionCommand::REDO -> selecting " << selectionToString(_selection);
+#endif
+
+    Ufe::GlobalSelection::get()->replaceWith(_selection);
+}
+
+}; // namespace UfeUi
diff --git a/src/UFEUI/replaceSelectionCommand.h b/src/UFEUI/replaceSelectionCommand.h
new file mode 100644
index 0000000..c38bccb
--- /dev/null
+++ b/src/UFEUI/replaceSelectionCommand.h
@@ -0,0 +1,59 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UFEUI_REPLACE_SELECTION_COMMAND_H
+#define UFEUI_REPLACE_SELECTION_COMMAND_H
+
+#include "UFEUIAPI.h"
+
+#include <ufe/selection.h>
+#include <ufe/undoableCommand.h>
+
+#include <functional>
+#include <memory>
+#include <unordered_map>
+
+namespace UfeUi {
+
+/** ReplaceSelectionCommand is used to make selection changes undoable. */
+class UFEUIAPI ReplaceSelectionCommand : public Ufe::UndoableCommand
+{
+public:
+    using Ptr = std::shared_ptr<ReplaceSelectionCommand>;
+
+    /** Constructor
+     * \param selection The new selection. */
+    ReplaceSelectionCommand(const Ufe::Selection& selection);
+
+    // Get a user friendly string representation of the command.
+    std::string commandString() const override { return "Select"; }
+
+    /** On undo this command replaces the Ufe::GlobalSelection with the
+     * _previousSelection captured during the construction of the command. */
+    void undo() override;
+
+    /** On redo this command replaces the Ufe::GlobalSelection with the new
+     * _selection passed to the constructor of the command. */
+    void redo() override;
+
+private:
+    Ufe::Selection _previousSelection;
+    Ufe::Selection _selection;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_REPLACE_SELECTION_COMMAND_H
\ No newline at end of file
diff --git a/src/UFEUI/standardTreeColumns.cpp b/src/UFEUI/standardTreeColumns.cpp
new file mode 100644
index 0000000..e4a1d5b
--- /dev/null
+++ b/src/UFEUI/standardTreeColumns.cpp
@@ -0,0 +1,417 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "standardTreeColumns.h"
+
+#include "Views/explorer.h"
+#include "editCommand.h"
+#include "highlightItemDelegate.h"
+#include "icon.h"
+#include "utils.h"
+
+#include <ufe/globalSelection.h>
+#include <ufe/object3d.h>
+#include <ufe/observableSelection.h>
+#include <ufe/uiInfoHandler.h>
+#include <ufe/undoableCommandMgr.h>
+
+#include <QtCore/qpointer.h>
+#include <QtGui/qicon.h>
+#include <QtWidgets/qapplication.h>
+
+NameColumn::NameColumn(int visualIndex)
+    : TreeColumn::TreeColumn(visualIndex)
+{
+}
+
+NameColumn::NameColumn(const QString& rootItemAlias, int visualIndex)
+    : TreeColumn::TreeColumn(visualIndex)
+    , _rootAlias { rootItemAlias }
+{
+}
+
+QVariant NameColumn::columnHeader(int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return QObject::tr("Prim Name");
+    }
+    return {};
+}
+
+QVariant NameColumn::data(const UfeUi::TreeItem* treeItem, int role) const
+{
+    const auto parent = treeItem->parentItem();
+    const bool isRootItem = !parent || parent->sceneItem() == nullptr;
+    const auto sceneItem = treeItem->sceneItem();
+
+    // DecorationRole is for the item's icon.
+    if (role == Qt::DecorationRole && !isRootItem) {
+        auto uiInfoHdlr = Ufe::UIInfoHandler::uiInfoHandler(sceneItem->runTimeId());
+        if (!uiInfoHdlr) {
+            return QVariant {};
+        }
+        const auto ufeIcon = uiInfoHdlr->treeViewIcon(sceneItem);
+        const auto qtIcon = UfeUi::Icon::build(ufeIcon);
+        QVariant   ret;
+        ret.setValue(qtIcon);
+        return ret;
+    }
+
+    if (role == Qt::ToolTipRole) {
+        auto uiInfoHdlr = Ufe::UIInfoHandler::uiInfoHandler(sceneItem->runTimeId());
+        if (!uiInfoHdlr) {
+            return QVariant {};
+        }
+        return QString::fromStdString(uiInfoHdlr->treeViewTooltip(sceneItem));
+    }
+
+    if (role == Qt::FontRole) {
+        auto uiInfoHdlr = Ufe::UIInfoHandler::uiInfoHandler(sceneItem->runTimeId());
+        if (!uiInfoHdlr) {
+            return QVariant {};
+        }
+
+        Ufe::CellInfo cellInfo;
+        if (uiInfoHdlr->treeViewCellInfo(sceneItem, cellInfo)) {
+            QFont font;
+            font.setStrikeOut(cellInfo.fontStrikeout);
+            font.setBold(cellInfo.fontBold);
+            font.setItalic(cellInfo.fontItalics);
+            return font;
+        }
+    }
+
+    if (role == Qt::ForegroundRole) {
+        if (!treeItem->computedVisibility()) {
+            return QApplication::palette().color(QPalette::Disabled, QPalette::WindowText);
+        }
+
+        auto uiInfoHdlr = Ufe::UIInfoHandler::uiInfoHandler(sceneItem->runTimeId());
+        if (!uiInfoHdlr) {
+            return QVariant {};
+        }
+
+        Ufe::CellInfo cellInfo;
+        if (uiInfoHdlr->treeViewCellInfo(sceneItem, cellInfo)) {
+            return QColor(
+                int(cellInfo.textFgColor.r() * 255.0),
+                int(cellInfo.textFgColor.g() * 255.0),
+                int(cellInfo.textFgColor.b() * 255.0));
+        }
+    }
+
+    if (role != Qt::DisplayRole) {
+        return QVariant {};
+    }
+
+    if (isRootItem && !_rootAlias.isEmpty()) {
+        return _rootAlias;
+    }
+    return QString::fromStdString(sceneItem->nodeName());
+};
+
+QStyledItemDelegate* NameColumn::createStyleDelegate(QObject* parent)
+{
+    const auto explorer = dynamic_cast<UfeUi::Explorer*>(parent);
+    if (!explorer) {
+        return nullptr;
+    }
+    const auto selectionColor = explorer->colorScheme().selected;
+
+    // Mix the selection color with the background color.
+    QColor bgColor = QApplication::palette().color(QPalette::Active, QPalette::Window);
+    QColor highlightColor = UfeUi::Utils::mixColors(bgColor, selectionColor, 100);
+    return new UfeUi::HighlightItemDelegate(
+        &(explorer->selectionAncestors()), highlightColor, parent);
+}
+
+QVariant TypeColumn::columnHeader(int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return QObject::tr("Type");
+    }
+    return {};
+}
+
+QVariant TypeColumn::data(const UfeUi::TreeItem* treeItem, int role) const
+{
+    if (role != Qt::DisplayRole) {
+        return QVariant {};
+    }
+    return QString::fromStdString(treeItem->sceneItem()->nodeType());
+}
+
+QIcon VisColumn::_iconVisible;
+QIcon VisColumn::_iconVisibleInherit;
+QIcon VisColumn::_iconHidden;
+QIcon VisColumn::_iconHiddenInherit;
+
+VisColumn::VisColumn(int visualIndex)
+    : TreeColumn(visualIndex)
+{
+    if (_iconVisible.isNull()) {
+        // the first shall initialize those!
+        _iconVisible = QIcon { ":/ufe/Icons/visible.png" };
+        _iconVisibleInherit = QIcon { ":/ufe/Icons/visibleInherit.png" };
+        _iconHidden = QIcon { ":/ufe/Icons/hidden.png" };
+        _iconHiddenInherit = QIcon { ":/ufe/Icons/hiddenInherit.png" };
+    }
+}
+
+VisColumn::~VisColumn() = default;
+
+QVariant VisColumn::columnHeader(int role) const
+{
+    if (role == Qt::DecorationRole) {
+        return _iconVisible;
+    }
+    if (role == Qt::ToolTipRole) {
+        return QObject::tr("Toggle the visibility property of a prim between invisible and "
+                           "inherit. Note: Ancestor "
+                           "visibility affects the resolved visibility of its descendants.");
+    }
+    return {};
+}
+
+QVariant VisColumn::data(const UfeUi::TreeItem* treeItem, int role) const
+{
+    const auto sceneItem = treeItem->sceneItem();
+    // DecorationRole is for the item's icon.
+    if (role == Qt::DecorationRole) {
+        const auto object3d = Ufe::Object3d::object3d(sceneItem);
+        if (!object3d) {
+            return QVariant {};
+        }
+
+        const bool authoredVis = object3d->visibility();
+        const auto computedVis = treeItem->computedVisibility();
+        if (!computedVis && authoredVis) {
+            return _iconHiddenInherit;
+        }
+        if (!object3d->visibility()) {
+            return _iconHidden;
+        }
+        return _iconVisibleInherit;
+    }
+    // No text to display, only the checkbox.
+    return QVariant {};
+}
+
+struct _UfeRootPathsHelper
+{
+    std::map<std::int64_t, _UfeRootPathsHelper> subComponentMap;
+    const Ufe::Path*                            path = nullptr;
+};
+
+void VisColumn::clicked(const UfeUi::TreeItem* treeItem)
+{
+    const auto sceneItem = treeItem->sceneItem();
+    const auto object3d = Ufe::Object3d::object3d(sceneItem);
+    if (!object3d) {
+        return;
+    }
+
+    std::vector<const Ufe::Path*> affectedPaths;
+
+    std::vector<Ufe::Object3d::Ptr> objectsToToggle;
+    objectsToToggle.push_back(object3d);
+    affectedPaths.push_back(&(sceneItem->path()));
+
+    // Check the global selection. If the item we clicked is selected, also
+    // toggle the visibility of the other selected items.
+    const Ufe::GlobalSelection::Ptr& selection = Ufe::GlobalSelection::get();
+    const auto                       numSegments = sceneItem->path().nbSegments();
+    const auto                       rootPath = sceneItem->path().popSegment();
+    if (selection && selection->contains(treeItem->sceneItem()->path())) {
+        for (const auto item : *selection) {
+            // Only consider items in the same subtree (in USD, that means in the same stage)
+            if (numSegments != item->path().nbSegments()) {
+                continue;
+            }
+            const auto itemRootPath = item->path().popSegment();
+            if (rootPath != itemRootPath) {
+                continue;
+            }
+
+            // Clicked item, already added.
+            if (item->path() == treeItem->sceneItem()->path()) {
+                continue;
+            }
+
+            const auto obj3d = Ufe::Object3d::object3d(item);
+            if (!obj3d) {
+                continue;
+            }
+            objectsToToggle.emplace_back(obj3d);
+            affectedPaths.emplace_back(&(item->path()));
+        }
+    }
+
+    const auto compositeCommand = Ufe::CompositeUndoableCommand::create({});
+    const auto newValue = !object3d->visibility();
+    for (const auto& object : objectsToToggle) {
+        compositeCommand->append(object->setVisibleCmd(newValue));
+    }
+
+    const auto editCmd = UfeUi::EditCommand::create(
+        treeItem->sceneItem()->path(), compositeCommand, "USD Stage Edit");
+
+    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+
+    // Tell the explorers affected by this operation to ignore UFE notifications
+    // to avoid them reacting to every single UFE change notification down the
+    // road...
+    _pausedExplorers.clear();
+    if (affectedPaths.size() > 1) {
+        const auto& first_item_path = affectedPaths.front();
+        for (const auto& explorer : _affectedExplorers) {
+            if (explorer && !explorer->isIgnoringUfeNotifications()
+                && first_item_path->startsWith(explorer->rootItem()->path())) {
+                explorer->setIgnoreUfeNotifications(true);
+                _pausedExplorers.push_back(explorer);
+            }
+        }
+    }
+
+    Ufe::UndoableCommandMgr::instance().executeCmd(editCmd);
+
+    // As those "paused" explorers did miss out on all the individual UFE change
+    // notifications, it is necessary to inform them manually that things have
+    // changed.
+    for (const auto& explorer : _pausedExplorers) {
+        if (explorer) {
+            explorer->setIgnoreUfeNotifications(false);
+
+            // -----------------------------------------------------------------
+            // As the model->update(path) will do trigger a recursive update of
+            // all the children of this path in the treeview, it is crucial to
+            // performance to only update the topmost (independent) selection
+            // items only to not do too much work down the road!
+            //
+            // -----------------------------------------------------------------
+            // The algorithm works like this:
+            // -----------------------------------------------------------------
+            //
+            // First entry would be "1/2/3/4/5": (p1)
+            //
+            // It creates a chain of IDs and adds itself to the last entry:
+            //
+            // +---+   +---+   +---+   +---+   +--------+
+            // | 1 |-->| 2 |-->| 3 |-->| 4 |-->| 5 (p1) |
+            // +---+   +---+   +---+   +---+   +--------+
+            //
+            // Second entry would be "1/2/3/4/6": (p2)
+            //
+            // It walks through the chain of IDs, extends it and adds itself to
+            // the last entry:
+            //                                   +--------+
+            // +---+   +---+   +---+   +---+  +->| 5 (p1) |
+            // | 1 |-->| 2 |-->| 3 |-->| 4 |--+  +--------+
+            // +---+   +---+   +---+   +---+  |  +--------+
+            //                                +->| 6 (p2) |
+            //                                   +--------+
+            //
+            // Third entry would be "1/2/3/4/6/7": (p3)
+            //
+            // It walks through the chain of IDs, but when it passed the 6, it
+            // sees that there is already a path there (p2) - so this would be
+            // higher than (p3), so it stops -> p3 will be skipped!
+            //
+            //                                   +--------+
+            // +---+   +---+   +---+   +---+  +->| 5 (p1) |
+            // | 1 |-->| 2 |-->| 3 |-->| 4 |--+  +--------+
+            // +---+   +---+   +---+   +---+  |  +----------+
+            //                                +->| * 6 (p2) | * stops here !
+            //                                   +----------+
+            //
+            // Third entry would be "1/2/3/": (p4)
+            //
+            // It creates a chain of IDs and adds itself to the last entry, and
+            // it also removes everything below it:
+            //
+            //                            +-----------------------+
+            //                            |            +--------+ |
+            // +---+   +---+   +--------+ |  +---+  +->| 5 (p1) | |
+            // | 1 |-->| 2 |-->| 3 (p4) | x->| 4 |--+  +--------+ |
+            // +---+   +---+   +--------+ |  +---+  |  +--------+ |
+            //                            |         +->| 6 (p2) | |
+            //                            |            +--------+ |
+            //                            +-- this gets removed --+
+            // results in:
+            // +---+   +---+   +--------+
+            // | 1 |-->| 2 |-->| 3 (p4) |
+            // +---+   +---+   +--------+
+            //
+            // So, as a result, the topmost (independent) paths are the only
+            // ones existing in the struct, so the only thing to do is to
+            // collect those.
+
+            _UfeRootPathsHelper helper;
+            for (const Ufe::Path* path : affectedPaths) {
+                bool                 nextOnePlease = false;
+                _UfeRootPathsHelper* current = &helper;
+                for (const auto& component : *path) {
+                    current = &current->subComponentMap[component.id()];
+                    if (current
+                            ->path) // there is already a selected node above this one, outta here!
+                    {
+                        nextOnePlease = true;
+                        break;
+                    }
+                }
+                if (!nextOnePlease) {
+                    current->path = path;
+                    current->subComponentMap
+                        .clear(); // remove all the subcomponents, as those are not needed anymore.
+                }
+            }
+            affectedPaths.clear();
+
+            std::function<void(const _UfeRootPathsHelper&)> collectPaths
+                = [&affectedPaths, &collectPaths](const _UfeRootPathsHelper& helper) {
+                      if (helper.path) {
+                          affectedPaths.push_back(helper.path);
+                      }
+                      for (const auto& subComponent : helper.subComponentMap) {
+                          collectPaths(subComponent.second);
+                      }
+                  };
+            collectPaths(helper);
+
+            // Now the affectedPaths vector contains just the topmost paths.
+
+            for (const auto& path : affectedPaths) {
+                explorer->treeModel()->update(*path);
+            }
+            explorer->treeView()->viewport()->update();
+        }
+    }
+    _pausedExplorers.clear();
+
+    QApplication::restoreOverrideCursor();
+}
+
+void VisColumn::doubleClicked(const UfeUi::TreeItem* treeItem)
+{
+    // Consider the double click as just another click.
+    clicked(treeItem);
+}
+
+QStyledItemDelegate* VisColumn::createStyleDelegate(QObject* parent)
+{
+    return new UfeUi::Icon::CenterIconDelegate(parent);
+}
+
+bool VisColumn::isSelectable() const { return false; }
diff --git a/src/UFEUI/standardTreeColumns.h b/src/UFEUI/standardTreeColumns.h
new file mode 100644
index 0000000..ab9009d
--- /dev/null
+++ b/src/UFEUI/standardTreeColumns.h
@@ -0,0 +1,97 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_STANDARD_TREE_COLUMNS
+#define UFEUI_STANDARD_TREE_COLUMNS
+
+#include "TreeColumn.h"
+#include "UFEUIAPI.h"
+#include "treeitem.h"
+
+#include <QtCore/qpointer.h>
+
+namespace UfeUi {
+class Explorer;
+};
+
+class QStyledItemDelegate;
+/**
+ * \brief Column for a UFE scene item's name.
+ */
+class UFEUIAPI NameColumn : public UfeUi::TreeColumn
+{
+public:
+    NameColumn(int visualIndex);
+
+    NameColumn(const QString& rootAlias, int visualIndex);
+
+    QVariant columnHeader(int role) const override;
+
+    QVariant data(const UfeUi::TreeItem*, int role) const override;
+
+    QStyledItemDelegate* createStyleDelegate(QObject* parent) override;
+
+private:
+    // An alias for the root item in the hierarchy.
+    QString _rootAlias;
+};
+
+/**
+ * \brief Column for a UFE scene item's type.
+ */
+class UFEUIAPI TypeColumn : public UfeUi::TreeColumn
+{
+public:
+    using TreeColumn::TreeColumn;
+
+    QVariant columnHeader(int role) const override;
+
+    QVariant data(const UfeUi::TreeItem* treeItem, int role) const override;
+};
+
+/**
+ * \brief Column for a UFE scene item's visibility (it's own visibility, not including any
+ * inherited visibility state).
+ */
+class UFEUIAPI VisColumn : public UfeUi::TreeColumn
+{
+public:
+    using TreeColumn::TreeColumn;
+
+    VisColumn(int visualIndex);
+    ~VisColumn() override;
+
+    QVariant columnHeader(int role) const override;
+
+    QVariant data(const UfeUi::TreeItem* treeItem, int role) const override;
+
+    void clicked(const UfeUi::TreeItem* treeItem) override;
+
+    void doubleClicked(const UfeUi::TreeItem* treeItem) override;
+
+    QStyledItemDelegate* createStyleDelegate(QObject* parent) override;
+
+    bool isSelectable() const override;
+
+private:
+    static QIcon _iconHidden;
+    static QIcon _iconHiddenInherit;
+    static QIcon _iconVisible;
+    static QIcon _iconVisibleInherit;
+
+    std::vector<QPointer<UfeUi::Explorer>> _pausedExplorers;
+};
+
+#endif // UFEUI_STANDARD_TREE_COLUMNS
\ No newline at end of file
diff --git a/src/UFEUI/treeColumn.cpp b/src/UFEUI/treeColumn.cpp
new file mode 100644
index 0000000..8d0f0eb
--- /dev/null
+++ b/src/UFEUI/treeColumn.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "treeColumn.h"
+
+#include "Views/explorer.h"
+
+namespace UfeUi {
+
+TreeColumn::TreeColumn(int visualIndex)
+    : _visualIdx(visualIndex)
+{
+}
+
+TreeColumn::~TreeColumn() = default;
+
+void TreeColumn::addExplorer(Explorer* explorer)
+{
+    if (explorer) {
+        auto it = std::find(_affectedExplorers.begin(), _affectedExplorers.end(), explorer);
+        if (it == _affectedExplorers.end()) {
+            _affectedExplorers.emplace_back(explorer);
+        }
+    }
+}
+
+void TreeColumn::removeExplorer(Explorer* explorer)
+{
+    if (explorer) {
+        auto it = std::find(_affectedExplorers.begin(), _affectedExplorers.end(), explorer);
+        if (it != _affectedExplorers.end()) {
+            _affectedExplorers.erase(it);
+        }
+    }
+}
+
+} // namespace UfeUi
\ No newline at end of file
diff --git a/src/UFEUI/treeColumn.h b/src/UFEUI/treeColumn.h
new file mode 100644
index 0000000..232f3c7
--- /dev/null
+++ b/src/UFEUI/treeColumn.h
@@ -0,0 +1,128 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_TREE_COLUMN_H
+#define UFEUI_TREE_COLUMN_H
+
+#include "UFEUIAPI.h"
+
+#include <QtCore/qpointer.h>
+#include <QtCore/qvariant.h>
+
+class QStyledItemDelegate;
+
+namespace UfeUi {
+
+class TreeItem;
+class Explorer;
+
+/**
+ * \brief Represents the definition of a column in an explorer's tree. Abstract class.
+ */
+class TreeColumn
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param visualIndex Visual index of the column (as opposed to the QT logical index)
+     */
+    UFEUIAPI TreeColumn(int visualIndex);
+
+    /**
+     * \brief Destructor.
+     */
+    virtual UFEUIAPI ~TreeColumn();
+
+    /**
+     * \brief Returns the header for the column.
+     * \param role The QT role (display, decoration, etc.)
+     * \return The header.
+     */
+    virtual UFEUIAPI QVariant columnHeader(int role) const = 0;
+
+    /**
+     * \brief Returns the data for this column, for the given role and item.
+     * \param treeItem The treeItem to get the data for.
+     * \param role The QT role of the data we want.
+     * \return The data!
+     */
+    virtual UFEUIAPI QVariant data(const TreeItem* treeItem, int role) const = 0;
+
+    /**
+     * \brief Returns the flags for the cell of the given scene item in this column.
+     * \param treeItem The treeItem to get flags for.
+     * \param flags The flags.
+     */
+    virtual UFEUIAPI void flags(const TreeItem* treeItem, Qt::ItemFlags& flags) {};
+
+    /**
+     * \brief Sets the data in the column.
+     * \param treeItem The treeItem to set the data for.
+     * \param value The new value.
+     * \param role The QT role of what is being set on the cell.
+     * \return True is successful.
+     */
+    virtual UFEUIAPI bool setData(const TreeItem* treeItem, const QVariant& value, int role)
+    {
+        return false;
+    }
+
+    /**
+     * \brief React to the tree item being clicked.
+     * \param treeItem The clicked treeItem.
+     */
+    virtual UFEUIAPI void clicked(const TreeItem* treeItem) { }
+
+    /**
+     * \brief React to the tree item being doubleClicked.
+     * \param treeItem The double clicked treeItem.
+     */
+    virtual UFEUIAPI void doubleClicked(const TreeItem* treeItem) { }
+
+    /**
+     * \brief Returns an optional QStyledItemDelegate to customize the draw code
+     * for items in the column.
+     * \param parent Object parent for the delegate.
+     * \return The created styled item delegate.
+     */
+    virtual UFEUIAPI QStyledItemDelegate* createStyleDelegate(QObject* parent) { return nullptr; }
+
+    /**
+     * \brief Whether the column is selectable.
+     * \return True if the column is selectable, i.e. an item's row can be selected
+     * from clicking on this column.
+     */
+    virtual UFEUIAPI bool isSelectable() const { return true; }
+
+    /**
+     * \brief Returns the visual index of the column.
+     * \return The index.
+     */
+    UFEUIAPI int visualIndex() const { return this->_visualIdx; }
+
+    UFEUIAPI void addExplorer(Explorer* explorer);
+    UFEUIAPI void removeExplorer(Explorer* explorer);
+
+protected:
+    std::vector<QPointer<Explorer>> _affectedExplorers;
+
+private:
+    int _visualIdx = 0;
+};
+
+typedef std::vector<std::shared_ptr<TreeColumn>> TreeColumns;
+} // namespace UfeUi
+
+#endif // UFEUI_TREE_COLUMN_H
diff --git a/src/UFEUI/treeItem.cpp b/src/UFEUI/treeItem.cpp
new file mode 100644
index 0000000..465e1c2
--- /dev/null
+++ b/src/UFEUI/treeItem.cpp
@@ -0,0 +1,158 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "treeItem.h"
+
+#include <Ufe/object3d.h>
+
+namespace UfeUi {
+
+TreeItem::TreeItem(TreeModel* model, const Ufe::SceneItem::Ptr& sceneItem)
+    : _parent(nullptr)
+    , _item(sceneItem)
+    , _model(model)
+    , _uniqueId(hash(this))
+{
+}
+
+TreeItem::~TreeItem() { _model->_treeItemMap.remove(_uniqueId); }
+
+TreeItem* TreeItem::appendChild(const Ufe::SceneItem::Ptr& sceneItem)
+{
+    const auto row = static_cast<int>(_children.size());
+    _children.emplace_back(std::make_unique<TreeItem>(_model, sceneItem));
+    // In CPP < 17, emplace_back doesnt return a reference to the inserted element.
+    const auto& treeItem = _children.back();
+
+    treeItem->setParent(this);
+    const auto uniqueId = treeItem->uniqueId();
+    const auto idx = _model->createIndex(row, 0, uniqueId);
+    _model->_treeItemMap.insert(uniqueId, { idx, treeItem.get() });
+    return treeItem.get();
+}
+
+TreeItem* TreeItem::child(int row) const
+{
+    if (row < 0 || row >= _children.size()) {
+        return nullptr;
+    }
+    return _children.at(row).get();
+}
+
+size_t TreeItem::childCount() const { return _children.size(); }
+
+TreeItem* TreeItem::parentItem() const { return _parent; }
+
+size_t TreeItem::uniqueId() const { return _uniqueId; }
+
+bool TreeItem::computedVisibility() const
+{
+    bool hidden = false;
+
+    // Do we have a cache of the disabled stage?
+    if (_visCache != VisStateCache::None) {
+        return _visCache == VisStateCache::Visible;
+    }
+
+    // Is the parent hidden?
+    if (_parent && !_parent->computedVisibility()) {
+        _visCache = VisStateCache::Hidden;
+        return false;
+    }
+
+    // Ancestors are not hidden, query the authored visibility.
+    if (const auto object3d = Ufe::Object3d::object3d(sceneItem())) {
+        hidden = !object3d->visibility();
+    }
+
+    this->_visCache = hidden ? VisStateCache::Hidden : VisStateCache::Visible;
+    return !hidden;
+}
+
+void TreeItem::clearChildren() { _children.clear(); }
+
+void TreeItem::removeChild(TreeItem* item)
+{
+    const auto it
+        = std::find_if(_children.begin(), _children.end(), [&item](const TreeItem::Ptr& child) {
+              return child->uniqueId() == item->uniqueId();
+          });
+    if (it != _children.end()) {
+        _children.erase(it);
+    }
+}
+
+void _findDescendantsRecursive(
+    const TreeItem*                      item,
+    std::function<bool(const TreeItem*)> predicate,
+    std::vector<TreeItem*>&              found)
+{
+    for (int i = 0; i < item->childCount(); ++i) {
+        const auto& child = item->child(i);
+        if (predicate(child)) {
+            found.push_back(child);
+
+            _findDescendantsRecursive(child, predicate, found);
+        }
+    }
+}
+
+TreeItem::TreeItems
+TreeItem::findDescendants(const std::function<bool(const TreeItem*)>& predicate) const
+{
+    TreeItems found;
+    _findDescendantsRecursive(this, predicate, found);
+    return found;
+}
+
+void TreeItem::clearStateCache()
+{
+    _visCache = VisStateCache::None;
+    for (const auto& child : _children) {
+        child->clearStateCache();
+    }
+}
+
+size_t TreeItem::hash(const TreeItem* item)
+{
+    if (!item) {
+        return 0;
+    }
+    const auto sceneItem = item->sceneItem();
+    if (!sceneItem) {
+        return 0;
+    }
+    return sceneItem->path().hash();
+}
+
+void TreeItem::setParent(TreeItem* parent) { _parent = parent; }
+
+int TreeItem::row() const
+{
+    if (_parent) {
+        const auto it = std::find_if(
+            _parent->_children.begin(),
+            _parent->_children.end(),
+            [this](const TreeItem::Ptr& child) { return child->uniqueId() == uniqueId(); });
+        // Should never happen...
+        if (it == _parent->_children.end()) {
+            return 0;
+        }
+        return static_cast<int>(std::distance(_parent->_children.begin(), it));
+    }
+    return 0;
+}
+
+} // namespace UfeUi
diff --git a/src/UFEUI/treeItem.h b/src/UFEUI/treeItem.h
new file mode 100644
index 0000000..3a41a96
--- /dev/null
+++ b/src/UFEUI/treeItem.h
@@ -0,0 +1,153 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_TREEITEM_H
+#define UFEUI_TREEITEM_H
+
+#include "TreeModel.h"
+
+#include <ufe/sceneItem.h>
+
+namespace UfeUi {
+
+class TreeItem
+{
+
+public:
+    typedef std::unique_ptr<TreeItem> Ptr;
+    typedef std::vector<TreeItem*>    TreeItems;
+    /**
+     * \brief Constructor.
+     * \param model TreeModel to which the item belong.
+     * \param sceneItem The UFE scene item associated with the tree item.
+     */
+    explicit UFEUIAPI TreeItem(TreeModel* model, const Ufe::SceneItem::Ptr& sceneItem);
+
+    /**
+     * \brief Destructor.
+     */
+    virtual UFEUIAPI ~TreeItem();
+
+    /**
+     * \brief Append a child to the TreeItem, from a UFE scene item.
+     * \param child The UFE item to append.
+     * \return The corresponding TreeItem that was created.
+     */
+    UFEUIAPI TreeItem* appendChild(const Ufe::SceneItem::Ptr& sceneItem);
+
+    /**
+     * \brief Gets the child at the given row (index).
+     * \param row The row of the child to fetch.
+     * \return The child item.
+     */
+    UFEUIAPI TreeItem* child(int row) const;
+
+    /**
+     * \brief Returns the number of children of the item.
+     * \return The number of children.
+     */
+    UFEUIAPI size_t childCount() const;
+
+    /**
+     * \brief Returns the row of the item, from the parent.
+     * \return Return the index from the parent.
+     */
+    UFEUIAPI int row() const;
+
+    /**
+     * \brief Return the parent item.
+     * \return The parent.
+     */
+    UFEUIAPI TreeItem* parentItem() const;
+
+    /**
+     * \brief A unique identifier for the TreeItem. Essentially the hash of the corresponding UFE path.
+     * \return The unique identifier.
+     */
+    UFEUIAPI size_t uniqueId() const;
+
+    /**
+     * \brief Returns the resolved visible state of the item. Uses some caching.
+     * \return True if the item is visible.
+     */
+    virtual UFEUIAPI bool computedVisibility() const;
+
+    /**
+     * \brief Return the scene item associated with the treeview item.
+     * \return The UFE scene item.
+     */
+    UFEUIAPI Ufe::SceneItem::Ptr sceneItem() const { return _item; }
+
+    /**
+     * \brief Clear all child items.
+     */
+    UFEUIAPI void clearChildren();
+
+    /**
+     * \brief Removes the given child item.
+     * \param item The child item to remove.
+     */
+    UFEUIAPI void removeChild(TreeItem* item);
+    ;
+
+    /**
+     * \brief Finds descendant, using a predicate.
+     * NOTE : If an item does not satisfy the predicate, the search is stopped
+     * in that subtree.
+     * \param predicate The predicate to search with.
+     * \return Found items.
+     */
+    UFEUIAPI TreeItems findDescendants(const std::function<bool(const TreeItem*)>& predicate) const;
+
+    /**
+     * \brief Clears any cached state.
+     */
+    UFEUIAPI void clearStateCache();
+
+private:
+    /**
+     * \brief Sets the parent of the item. Usually called when the item is added as a new child
+     * of another item.
+     * \param parent The new parent.
+     */
+    void setParent(TreeItem* parent);
+
+    /**
+     * \brief Returns the hash of the UFE path associated with the item, or 0.
+     * \param item The tree item.
+     * \return The hash.
+     */
+    static size_t hash(const TreeItem* item);
+
+    TreeItem* _parent;
+    // Children of the TreeItem. Owns the memory.
+    std::vector<TreeItem::Ptr> _children;
+    Ufe::SceneItem::Ptr        _item;
+    TreeModel*                 _model;
+    size_t                     _uniqueId;
+
+    enum class VisStateCache
+    {
+        Visible,
+        Hidden,
+        None // Cache not set.
+    };
+
+    mutable VisStateCache _visCache = VisStateCache::None;
+};
+
+} // namespace UfeUi
+
+#endif UFEUI_TREEITEM_H
\ No newline at end of file
diff --git a/src/UFEUI/treeModel.cpp b/src/UFEUI/treeModel.cpp
new file mode 100644
index 0000000..8ab83cb
--- /dev/null
+++ b/src/UFEUI/treeModel.cpp
@@ -0,0 +1,303 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "TreeModel.h"
+
+#include "treeitem.h"
+
+#include <ufe/hierarchy.h>
+
+#include <QtGui/QPalette>
+#include <QtWidgets/QApplication>
+#include <functional>
+
+namespace UfeUi {
+
+TreeModel::TreeModel(const TreeColumns& columns, QObject* parent)
+    : QAbstractItemModel(parent)
+    , _rootItem(new TreeItem(this, nullptr))
+    , _columns(columns)
+{
+}
+
+TreeModel::~TreeModel() { delete _rootItem; }
+
+int TreeModel::columnCount(const QModelIndex&) const { return static_cast<int>(_columns.size()); }
+
+TreeItem* TreeModel::root() const { return _rootItem; }
+
+void TreeModel::update(const Ufe::Path& path)
+{
+    const auto idx = getIndexFromPath(path);
+    if (idx.isValid()) {
+        if (const auto item = treeItem(idx)) {
+            item->clearStateCache();
+
+            std::function<QModelIndex(const QModelIndex&)> getLastSubtreeItem
+                = [&](const QModelIndex& idx) {
+                      int childCount = rowCount(idx);
+                      if (!childCount) {
+                          return idx;
+                      }
+                      return getLastSubtreeItem(index(childCount - 1, 0, idx));
+                  };
+            // Emit dataChanged for this path and its subtree items
+            Q_EMIT dataChanged(idx, getLastSubtreeItem(idx).siblingAtColumn(columnCount() - 1));
+        }
+    }
+}
+
+QModelIndex TreeModel::getIndexFromPath(const Ufe::Path& path) const
+{
+    const auto it = _treeItemMap.find(path.hash());
+    if (it != _treeItemMap.end()) {
+        return it->first;
+    }
+    return QModelIndex {};
+}
+
+TreeItem* TreeModel::treeItem(const QModelIndex& index) const
+{
+    if (!index.isValid()) {
+        return nullptr;
+    }
+
+    const auto it = _treeItemMap.find(index.internalId());
+    if (it == _treeItemMap.end()) {
+        return nullptr;
+    }
+
+    return it->second;
+}
+
+QVariant TreeModel::data(const QModelIndex& index, int role) const
+{
+    const auto& columnIdx = index.column();
+    if (!index.isValid() || columnIdx < 0 || columnIdx >= static_cast<int>(_columns.size())) {
+        return QVariant {};
+    }
+
+    const auto item = treeItem(index);
+    if (!item) {
+        return QVariant {};
+    }
+
+    return _columns[columnIdx]->data(item, role);
+}
+
+bool TreeModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    if (!index.isValid()) {
+        return false;
+    }
+
+    if (index.column() < 0 || index.column() >= _columns.size()) {
+        return false;
+    }
+
+    const auto item = treeItem(index);
+    if (!item) {
+        return false;
+    }
+
+    const auto res = _columns[index.column()]->setData(item, value, role);
+    return res;
+}
+
+Qt::ItemFlags TreeModel::flags(const QModelIndex& index) const
+{
+    if (!index.isValid()) {
+        return Qt::NoItemFlags;
+    }
+
+    if (index.column() < 0 || index.column() >= _columns.size()) {
+        return Qt::NoItemFlags;
+    }
+
+    const auto item = treeItem(index);
+    if (!item) {
+        return Qt::NoItemFlags;
+    }
+
+    Qt::ItemFlags flags = QAbstractItemModel::flags(index);
+    _columns[index.column()]->flags(item, flags);
+
+    return flags;
+}
+
+QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation != Qt::Horizontal || section < 0
+        || section >= static_cast<int>(_columns.size())) {
+        return QVariant {};
+    }
+    return _columns[section]->columnHeader(role);
+}
+
+QModelIndex TreeModel::index(int row, int column, const QModelIndex& parent) const
+{
+    if (!hasIndex(row, column, parent)) {
+        return QModelIndex {};
+    }
+
+    TreeItem* parentItem = nullptr;
+    if (!parent.isValid()) {
+        parentItem = _rootItem;
+    } else {
+        parentItem = treeItem(parent);
+        if (!parentItem) {
+            return QModelIndex {};
+        }
+    }
+
+    if (const auto childItem = parentItem->child(row)) {
+        return createIndex(row, column, childItem->uniqueId());
+    }
+    return QModelIndex {};
+}
+
+QModelIndex TreeModel::parent(const QModelIndex& index) const
+{
+    if (!index.isValid()) {
+        return QModelIndex {};
+    }
+
+    const auto childItem = treeItem(index);
+    if (!childItem) {
+        return QModelIndex {};
+    }
+
+    TreeItem* parentItem = childItem->parentItem();
+
+    if (parentItem == _rootItem) {
+        return QModelIndex {};
+    }
+    return createIndex(parentItem->row(), 0, parentItem->uniqueId());
+}
+
+int TreeModel::rowCount(const QModelIndex& parent) const
+{
+    TreeItem* parentItem;
+    if (parent.column() > 0) {
+        return 0;
+    }
+    if (!parent.isValid()) {
+        parentItem = _rootItem;
+    } else {
+        parentItem = treeItem(parent);
+        if (!parentItem) {
+            return 0;
+        }
+    }
+    return static_cast<int>(parentItem->childCount());
+}
+
+std::unique_ptr<TreeModel> TreeModel::create(const TreeColumns& columns, QObject* parent)
+{
+    std::unique_ptr<TreeModel> treeModel = std::make_unique<TreeModel>(columns, parent);
+    if (const auto qApplication = QApplication::instance()) {
+        treeModel->moveToThread(qApplication->thread());
+    }
+    return treeModel;
+}
+
+void TreeModel::buildTreeFrom(
+    TreeItem*                          buildRoot,
+    const Ufe::SceneItem::Ptr&         sceneItem,
+    const std::string&                 searchFilter,
+    const TypeFilter&                  typeFilter,
+    const Ufe::Hierarchy::ChildFilter& childFilter,
+    bool                               includeRoot)
+{
+    Q_EMIT layoutAboutToBeChanged();
+
+    buildRoot->clearChildren();
+
+    ItemIncludes itemIncludes;
+    itemIncludes.root = includeRoot;
+
+    // Optimization: If the provided search filter is empty, fallback to loading the entire
+    // hierarchy under the given item. This can can happen in cases where the User already typed
+    // characters in the search box before pressing backspace up until all characters were removed.
+    if (searchFilter.empty()
+        && (typeFilter.names.empty() || typeFilter.mode == TypeFilter::Mode::NoFilter)) {
+        buildTree(sceneItem, buildRoot, itemIncludes, childFilter);
+        Q_EMIT layoutChanged();
+        return;
+    }
+
+    itemIncludes.useItemList = true;
+
+    const auto items
+        = ItemSearch::findMatchingPaths(sceneItem, searchFilter, typeFilter, childFilter);
+    for (const auto& item : items) {
+        // When walking up the ancestry chain, the root item will end up being considered once and
+        // its parent (an invalid Prim) will be selected. Since there is no point iterating up the
+        // hierarchy at this point, stop processing the current Prim an move on to the next one
+        // matching the search filter.
+        Ufe::Path currentPath = item->path();
+        while (currentPath.size()) {
+            if (const bool pathAlreadyIncluded
+                = itemIncludes.itemPaths.find(currentPath) != itemIncludes.itemPaths.end()) {
+                // If the path is already part of the set of search results to be displayed, it is
+                // unnecessary to walk up the ancestry chain in an attempt to process further item,
+                // as it means they have already been added to the list up to the root item.
+                break;
+            }
+            itemIncludes.itemPaths.insert(currentPath);
+            currentPath = currentPath.pop();
+        }
+    }
+
+    // Optimization: Count the number of itemns expected to be inserted in the TreeModel, so that
+    // the search process can stop early if all items have already been found. While additional
+    // "narrowing" techniques can be used in the future to further enhance the performance, this may
+    // provide sufficient performance in most cases to remain as-is for early User feedback.
+    buildTree(sceneItem, buildRoot, itemIncludes, childFilter);
+    Q_EMIT layoutChanged();
+}
+
+void TreeModel::buildTree(
+    const Ufe::SceneItem::Ptr&         sceneItem,
+    TreeItem*                          parentItem,
+    ItemIncludes&                      includes,
+    const Ufe::Hierarchy::ChildFilter& childFilter)
+{
+    if (!includes.useItemList
+        || includes.itemPaths.find(sceneItem->path()) != includes.itemPaths.end()) {
+        auto parentItemForChildren = parentItem;
+        if (includes.root) {
+            parentItemForChildren = parentItem->appendChild(sceneItem);
+        }
+
+        includes.root = true;
+
+        // Only continue processing additional items if all expected results have not already been
+        // found:
+        if (--includes.insertionsRemaining > 0) {
+            const auto item = Ufe::Hierarchy::createItem(sceneItem->path());
+            if (!item) {
+                return;
+            }
+
+            const auto               hierarchy = Ufe::Hierarchy::hierarchy(item);
+            const Ufe::SceneItemList children = hierarchy->filteredChildren(childFilter);
+            for (const auto& childItem : children) {
+                buildTree(childItem, parentItemForChildren, includes, childFilter);
+            }
+        }
+    }
+}
+} // namespace UfeUi
diff --git a/src/UFEUI/treeModel.h b/src/UFEUI/treeModel.h
new file mode 100644
index 0000000..aa50e44
--- /dev/null
+++ b/src/UFEUI/treeModel.h
@@ -0,0 +1,152 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_TREE_MODEL_H
+#define UFEUI_TREE_MODEL_H
+
+#include "ItemSearch.h"
+#include "TreeColumn.h"
+#include "UFEUIAPI.h"
+
+#include <ufe/notification.h>
+#include <ufe/path.h>
+#include <ufe/sceneItem.h>
+#include <ufe/subject.h>
+
+#include <QtCore/QModelIndex>
+#include <QtCore/QVariant>
+#include <unordered_set>
+
+namespace UfeUi {
+
+class TreeItem;
+
+/**
+ * \brief Data model for the UFE treeview.
+ */
+class TreeModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    friend class TreeItem;
+
+    explicit UFEUIAPI TreeModel(const TreeColumns& columns, QObject* parent);
+    UFEUIAPI ~TreeModel() override;
+
+    UFEUIAPI QVariant data(const QModelIndex& index, int role) const override;
+    UFEUIAPI bool     setData(const QModelIndex& index, const QVariant& value, int role) override;
+    UFEUIAPI Qt::ItemFlags flags(const QModelIndex& index) const override;
+    UFEUIAPI QVariant
+    headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    UFEUIAPI QModelIndex
+    index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
+    UFEUIAPI QModelIndex parent(const QModelIndex& index) const override;
+    UFEUIAPI int         rowCount(const QModelIndex& parent = QModelIndex()) const override;
+    UFEUIAPI int         columnCount(const QModelIndex& parent = QModelIndex()) const override;
+
+    /**
+     * \brief Returns the root TreeItem of this model.
+     * \return The root item.
+     */
+    UFEUIAPI TreeItem* root() const;
+
+    /**
+     * \brief Get the model index, in this model, of a given UFE path. If it doesnt exist in the model,
+     * return an invalid index.
+     * \param path The ufe path to get the index for.
+     * \return The index.
+     */
+    UFEUIAPI QModelIndex getIndexFromPath(const Ufe::Path& path) const;
+
+    /**
+     * \brief Retrieve the TreeItem stored in the data of the given index.
+     * \param index The index to get the item from.
+     * \return The tree item.
+     */
+    UFEUIAPI TreeItem* treeItem(const QModelIndex& index) const;
+
+    /**
+     * \brief Updates the row associated with a single UFE path. This will clear any cached UI data
+     * on the associated TreeItem (and descendants) and signal QT that the data may have changed.
+     * \param path The ufe path of the item to update.
+     */
+    UFEUIAPI void update(const Ufe::Path& path);
+
+    /**
+     * \brief Builds an emptry TreeModel.
+     * \param columns Definitions of columns that should appear in the tree.
+     * we want executed when some data is set on the model.
+     * \param parent Parent QT object.
+     * \return The created TreeModel.
+     */
+    static UFEUIAPI std::unique_ptr<TreeModel> create(const TreeColumns& columns, QObject* parent);
+
+    /**
+     * \brief Builds a TreeModel from hierarchy search.
+     * \param root The root UFE item to build the hierarchy from.
+     * we want executed when some data is set on the model.
+     * \param searchFilter The search filter (can user regex).
+     * \param typeFilter Type filtering configuration (to include or exclude certain types)
+     * \param childFilter Ufe Hierarchy child filter, filters item when traversing the
+     * hierarchy. Used by the runtime hierarchy implementation.
+     * \param includeRoot Whether or not the root item should be included in the model.
+     * \return The created TreeModel.
+     */
+    UFEUIAPI void buildTreeFrom(
+        TreeItem*                          buildRoot,
+        const Ufe::SceneItem::Ptr&         root,
+        const std::string&                 searchFilter,
+        const TypeFilter&                  typeFilter,
+        const Ufe::Hierarchy::ChildFilter& childFilter,
+        bool                               includeRoot = true);
+
+    // Utility class to keep track of what items need to / have been included as we
+    // are building the tree structure
+    struct UFEUIAPI ItemIncludes
+    {
+        /// Whether or not the root item should be included.
+        bool root = true;
+        /// Are we using an explicit of ufe paths that should be included? (search scenario)
+        bool useItemList = false;
+        // Allowed UFE paths.
+        std::unordered_set<Ufe::Path> itemPaths;
+        /// How many items do we still have to insert in the tree, vs what we expect.
+        size_t insertionsRemaining = 0;
+    };
+
+private:
+    /**
+     * \brief Builds a subtree. Called recursively. Generally speaking, the given item is added,
+     * and buildTree() called on its children.
+     * \param model The tree model to build into
+     * \param sceneItem The top level item of the subtree.
+     * \param parentItem The parent item.
+     * \param includes Items includes config. Can be used to exclude some items from the tree.
+     */
+    void buildTree(
+        const Ufe::SceneItem::Ptr&         sceneItem,
+        TreeItem*                          parentItem,
+        ItemIncludes&                      includes,
+        const Ufe::Hierarchy::ChildFilter& childFilter);
+
+    TreeItem*                                    _rootItem;
+    TreeColumns                                  _columns;
+    QHash<size_t, QPair<QModelIndex, TreeItem*>> _treeItemMap;
+};
+
+} // namespace UfeUi
+
+#endif // UFEUI_TREE_MODEL_H
diff --git a/src/UFEUI/utils.cpp b/src/UFEUI/utils.cpp
new file mode 100644
index 0000000..27b1dd1
--- /dev/null
+++ b/src/UFEUI/utils.cpp
@@ -0,0 +1,126 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "utils.h"
+
+#include "treeItem.h"
+#include "treeModel.h"
+
+#include <QtCore/QSortFilterProxyModel.h>
+#include <QtWidgets/QTreeView.h>
+
+namespace UfeUi {
+namespace Utils {
+
+double dpiScaleFactor = 1.0;
+
+double dpiScale() { return dpiScaleFactor; }
+
+void setDpiScale(double dpiScale) { dpiScaleFactor = dpiScale; }
+
+void findExpandedPaths(
+    TreeModel*              model,
+    QSortFilterProxyModel*  proxyModel,
+    QTreeView*              treeView,
+    const TreeItem*         subtreeRoot,
+    std::vector<Ufe::Path>& expanded)
+{
+    auto isExpanded = [&](const TreeItem* item) {
+        QModelIndex idx;
+        const auto  sceneItem = item->sceneItem();
+        if (!sceneItem) {
+            // Pseudo-root item in the treeview.
+            idx = model->index(0, 0, QModelIndex());
+        } else {
+            idx = model->getIndexFromPath(sceneItem->path());
+            if (!idx.isValid()) {
+                return false;
+            }
+        }
+
+        const auto proxyIdx = proxyModel->mapFromSource(idx);
+        if (!proxyIdx.isValid()) {
+            return false;
+        }
+        return treeView->isExpanded(proxyIdx);
+    };
+
+    if (!isExpanded(subtreeRoot)) {
+        return;
+    }
+
+    expanded.clear();
+    const auto sceneItem = subtreeRoot->sceneItem();
+    if (sceneItem) {
+        expanded.push_back(sceneItem->path());
+    }
+    const auto expandedItems = subtreeRoot->findDescendants(isExpanded);
+    for (const auto& item : expandedItems) {
+        expanded.push_back(item->sceneItem()->path());
+    }
+}
+
+void expandPaths(
+    QTreeView*              treeView,
+    TreeModel*              model,
+    QSortFilterProxyModel*  proxyModel,
+    std::vector<Ufe::Path>& expandedPaths)
+{
+    for (const auto& path : expandedPaths) {
+        const auto proxyIdx = proxyModel->mapFromSource(model->getIndexFromPath(path));
+        treeView->setExpanded(proxyIdx, true);
+    }
+}
+
+ExpandStateGuard::ExpandStateGuard(
+    QTreeView*             treeView,
+    const TreeItem*        subtreeRoot,
+    TreeModel*             model,
+    QSortFilterProxyModel* proxyModel)
+    : _model(model)
+    , _proxyModel(proxyModel)
+    , _treeView(treeView)
+{
+    findExpandedPaths(model, proxyModel, treeView, subtreeRoot, _expandedPaths);
+}
+
+ExpandStateGuard::~ExpandStateGuard()
+{
+    // If the items paths still exist, restore their expanded state.
+    expandPaths(_treeView, _model, _proxyModel, _expandedPaths);
+    _expandedPaths.clear();
+}
+
+bool filtersAreEqual(
+    const Ufe::Hierarchy::ChildFilter& filter1,
+    const Ufe::Hierarchy::ChildFilter& filter2)
+{
+    if (filter1.size() != filter2.size()) {
+        return false;
+    }
+    auto it1 = filter1.begin();
+    auto it2 = filter2.begin();
+    while (it1 != filter1.end() && it2 != filter2.end()) {
+        if (it1->name != it2->name || it1->value != it2->value) {
+            return false;
+        }
+        ++it1;
+        ++it2;
+    }
+    return true;
+}
+
+} // namespace Utils
+} // namespace UfeUi
diff --git a/src/UFEUI/utils.h b/src/UFEUI/utils.h
new file mode 100644
index 0000000..28c31b6
--- /dev/null
+++ b/src/UFEUI/utils.h
@@ -0,0 +1,161 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#ifndef UFEUI_UTILS_H
+#define UFEUI_UTILS_H
+
+#include "UFEUIAPI.h"
+
+#include <ufe/hierarchy.h>
+#include <ufe/path.h>
+#include <ufe/selection.h>
+
+#include <QtGui/QColor>
+#include <functional>
+
+class QTreeView;
+class QSortFilterProxyModel;
+
+namespace UfeUi {
+class TreeItem;
+class TreeModel;
+
+namespace Utils {
+
+/**
+ * \brief Returns the DPI scaling. Should be relative to a default of 96 DPI.
+ * \return The DPI scaling.
+ */
+UFEUIAPI double dpiScale();
+
+/**
+ * \brief Sets the DPI scaling. Should be relative to a default of 96 DPI.
+ * \param dpiScale The DPI scaling to set.
+ */
+UFEUIAPI void setDpiScale(double dpiScale);
+
+// hash combiner taken from:
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0814r0.pdf
+// boost::hash implementation also relies on the same algorithm:
+// https://www.boost.org/doc/libs/1_64_0/boost/functional/hash/hash.hpp
+template <typename T> void hashCombine(std::size_t& seed, const T& value)
+{
+    ::std::hash<T> hasher;
+    seed ^= hasher(value) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
+}
+
+/**
+ * \brief Finds the UFE paths of scene items currently expanded in the treeView.
+ * \param model The model loaded in the tree view.
+ * \param proxyModel The proxy model used by the tree view.
+ * \param treeView The treeview itself.
+ * \param subtreeRoot Root item used for the search.
+ * \param expanded Vector of paths that the function will fill.
+ */
+void findExpandedPaths(
+    TreeModel*              model,
+    QSortFilterProxyModel*  proxyModel,
+    QTreeView*              treeView,
+    const TreeItem*         subtreeRoot,
+    std::vector<Ufe::Path>& expanded);
+
+/**
+ * \brief Expands the tree items associated with the given ufe paths.
+ * \param model The model loaded in the tree view.
+ * \param proxyModel The proxy model used by the tree view.
+ * \param treeView The treeview itself.
+ * \param expandedPaths Vector of UFE paths of the items to be expanded in the tree.
+ */
+void expandPaths(
+    QTreeView*              treeView,
+    TreeModel*              model,
+    QSortFilterProxyModel*  proxyModel,
+    std::vector<Ufe::Path>& expandedPaths);
+
+// Stores the tree expand state in the constructor, and restores it on destruction.
+class ExpandStateGuard
+{
+public:
+    ExpandStateGuard(
+        QTreeView*             treeView,
+        const TreeItem*        subtreeRoot,
+        TreeModel*             model,
+        QSortFilterProxyModel* proxyModel);
+    ~ExpandStateGuard();
+
+private:
+    TreeModel*             _model = nullptr;
+    QSortFilterProxyModel* _proxyModel = nullptr;
+    QTreeView*             _treeView = nullptr;
+    std::vector<Ufe::Path> _expandedPaths;
+};
+
+/**
+ * \brief Checks if two hierarchy filters are equal.
+ * \param filter1 The first filter.
+ * \param filter2 The second filter.
+ * \return True, if passed filters are equal, false otherwise.
+ */
+bool filtersAreEqual(
+    const Ufe::Hierarchy::ChildFilter& filter1,
+    const Ufe::Hierarchy::ChildFilter& filter2);
+
+/**
+ * \brief Mix two QColors.
+ * \param color1 The first color.
+ * \param color2 The second color.
+ * \param color1Amount Amount for color1, a ratio over 255.
+ * \return The mixed color.
+ */
+inline QColor mixColors(const QColor& color1, const QColor& color2, int color1Amount)
+{
+    color1Amount = qBound(0, color1Amount, 255);
+    const int color2Amount = 255 - color1Amount;
+    return { ((color1.red() * color1Amount) + (color2.red() * color2Amount)) / 255,
+             ((color1.green() * color1Amount) + (color2.green() * color2Amount)) / 255,
+             ((color1.blue() * color1Amount) + (color2.blue() * color2Amount)) / 255 };
+}
+
+/** Checks if two UFE selections are representing an equivalent set of
+ * sceneItems (without any particular order).
+ * \param a The first selection.
+ * \param b The second selection.
+ * \return True, if passed selections are equivalent, false otherwise. */
+inline bool selectionsAreEquivalent(const Ufe::Selection& a, const Ufe::Selection& b)
+{
+    auto aSize = a.size();
+
+    if (aSize != b.size()) // different number of items
+    {
+        return false;
+    }
+
+    if (aSize == 0u) // both are empty
+    {
+        return true;
+    }
+
+    for (const auto& item : a) {
+        if (!b.contains(item->path())) {
+            return false;
+        }
+    }
+    return true;
+}
+
+} // namespace Utils
+} // namespace UfeUi
+
+#endif UFEUI_UTILS_H
\ No newline at end of file
diff --git a/src/USD.props b/src/USD.props
new file mode 100644
index 0000000..ba7eded
--- /dev/null
+++ b/src/USD.props
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+	xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+	<ImportGroup Label="PropertySheets">
+		<Import Project="./3dsmax.common.settings.props" Condition="$(HasImportedCommonProps) != '1'" />
+	</ImportGroup>
+
+	<PropertyGroup Label="UserMacros">
+		<PxrUsdRoot Condition="'$(MaxUsdDevKit)'!='' and '$(PxrUsdRoot)'==''">$(MaxUsdDevKit)\Pixar_USD</PxrUsdRoot>
+		<PxrUsdRoot Condition="'$(VersionTarget)'&gt;'2025' and '$(PxrUsdRoot)'==''">$(Artifacts)$(VersionTarget)\Pixar_USD</PxrUsdRoot>
+		<PxrUsdRoot Condition="'$(VersionTarget)'&lt;='2025' and '$(PxrUsdRoot)'==''">$(Artifacts)$(VersionTarget)\Pixar_USD\Release</PxrUsdRoot>
+		<Pixar_USDInc>$(PxrUsdRoot)\include</Pixar_USDInc>
+		<Pixar_USDLib>$(PxrUsdRoot)\lib</Pixar_USDLib>
+		<BoostInc Condition="'$(VersionTarget)'&gt;'2025' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_82</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'=='2025' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_81</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'=='2024' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_76</BoostInc>
+		<BoostInc Condition="'$(VersionTarget)'&lt;'2024' and '$(BoostInc)'==''">$(PxrUsdRoot)\include\boost-1_70</BoostInc>
+		<BoostLib Condition="'$(BoostLib)'==''">$(Pixar_USDLib)</BoostLib>
+		<TBBDir Condition="'$(TBBDir)'==''">$(PxrUsdRoot)</TBBDir>
+		<TBBInclude>$(TBBDir)\include</TBBInclude>
+		<TBBLib>$(TBBDir)\lib</TBBLib>
+		<PythonLocation Condition="'$(MaxUsdDevKit)'!=''and '$(PythonLocation)'==''">$(MaxUsdDevKit)\Python</PythonLocation>
+		<PythonLocation Condition="'$(PythonLocation)'==''">$(Artifacts)$(VersionTarget)\Python</PythonLocation>
+		<PythonInc>$(PythonLocation)\Include</PythonInc>
+		<PythonLibs>$(PythonLocation)\libs</PythonLibs>
+		<PyOpenGLDir Condition="'$(PyOpenGLDir)'==''">$(Artifacts)$(VersionTarget)\PyOpenGL</PyOpenGLDir>
+	</PropertyGroup>
+	<PropertyGroup Condition="$(VersionTarget)&gt;=2023">
+	    <ExternalIncludePath>$(Pixar_USDInc);$(VC_IncludePath);$(WindowsSDK_IncludePath)</ExternalIncludePath>
+	</PropertyGroup>
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2023">USD_VERSION_21_11;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<!-- Starting with 3dsMax 2024, one USD version per 3dsMax release. -->
+			<PreprocessorDefinitions Condition="$(VersionTarget)==2024">USD_VERSION_22_11;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&gt;=2025">USD_VERSION_23_08;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+		</ClCompile>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(SolutionDir);$(BoostInc);$(TBBInclude);$(PythonInc);$(Pixar_USDInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+			<PreprocessorDefinitions>_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING;NOMINMAX=1;TBB_SUPPRESS_DEPRECATED_MESSAGES;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&gt;=2025">BOOST_LIB_TOOLSET="vc142";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2024">BOOST_LIB_TOOLSET="vc141";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="'$(Configuration)'=='Debug'">BOOST_LINKING_PYTHON=1;TBB_USE_DEBUG=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<PreprocessorDefinitions Condition="$(VersionTarget)&lt;=2023">_SILENCE_EXPERIMENTAL_FILESYSTEM_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<DisableSpecificWarnings>4003;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+			<AdditionalOptions Condition="$(VersionTarget)&lt;=2022">/experimental:external /external:I $(Pixar_USDInc)\include /external:W0 %(AdditionalOptions)</AdditionalOptions>
+			<AdditionalOptions Condition="$(VersionTarget)&gt;=2024">/Zc:__cplusplus</AdditionalOptions>
+		</ClCompile>
+		<ClCompile Condition="'$(Configuration)'=='$(ConfigHybrid)'">
+			<!-- Optimization is disabled for all configs except Release -->
+			<Optimization>Disabled</Optimization>
+			<PreprocessorDefinitions>;_HYBRID;IS_HYBRID;SECURE_SCL=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+			<!--
+			Boost does not like us having runtime checks (RTC) with non debug build.
+			Thus Microsoft documentation only states that Optimizations needs to be disabled (as done for hybrid), doing no mention of debug vs release build.
+			Disable RTC as it the only way to build hybrid.
+			-->
+			<BasicRuntimeChecks>Default</BasicRuntimeChecks>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(Pixar_USDLib);$(BoostLib);$(TBBLib);$(PythonLibs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+			<AdditionalDependencies>OpenGL32.lib;3dsmax_usd.lib;3dsmax_sdf.lib;3dsmax_js.lib;3dsmax_pcp.lib;3dsmax_tf.lib;3dsmax_ar.lib;3dsmax_arch.lib;3dsmax_garch.lib;3dsmax_gf.lib;3dsmax_glf.lib;3dsmax_hd.lib;3dsmax_hdSt.lib;3dsmax_hdx.lib;3dsmax_hf.lib;3dsmax_kind.lib;3dsmax_sdr.lib;3dsmax_ndr.lib;3dsmax_plug.lib;3dsmax_trace.lib;3dsmax_usdGeom.lib;3dsmax_usdImaging.lib;3dsmax_usdImagingGL.lib;3dsmax_usdLux.lib;3dsmax_vt.lib;3dsmax_work.lib;3dsmax_usdUtils.lib;3dsmax_usdShade.lib;3dsmax_usdUI.lib;3dsmax_usdSkel.lib;%(AdditionalDependencies)</AdditionalDependencies>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/src/USDComponentBuildNumber.h b/src/USDComponentBuildNumber.h
new file mode 100644
index 0000000..2f37670
--- /dev/null
+++ b/src/USDComponentBuildNumber.h
@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// For a local build, dummy up the build number to zero; for a proper build in the component pipeline, this will be
+// overwritten
+#pragma warning(push)
+#pragma warning(disable : 4005)  // prevent macro redefinition warning with 'maxsdk\include\buildnumber.h'
+#define VERSION_STRING "local build"
+#define VERSION_INT 0
+#pragma warning(pop)
diff --git a/src/USDComponentVersion.h b/src/USDComponentVersion.h
new file mode 100644
index 0000000..7e84b3a
--- /dev/null
+++ b/src/USDComponentVersion.h
@@ -0,0 +1,30 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "USDComponentBuildNumber.h"
+#include "USDComponentVersionNumber.h"
+
+// Helper macros to concatenate components of a version number, and to convert to a string
+#define MAKE_VERSION_NUMBER(major, minor, micro, build) major##.##minor##.##micro##.##build
+#define MAKE_VERSION_NUMBER_COMMA_SEPARATED(major, minor, micro, build) major,minor,micro,build
+#define MAKE_STRING(str) #str
+#define MAKE_VERSION_STRING(verStr) MAKE_STRING(verStr)
+
+// Concatenated version for the USD component
+#define USD_COMPONENT_VERSION MAKE_VERSION_NUMBER(COMPONENT_VERSION_MAJOR, COMPONENT_VERSION_MINOR, COMPONENT_VERSION_MICRO, VERSION_INT)
+#define USD_COMPONENT_VERSION_STRING MAKE_VERSION_STRING(USD_COMPONENT_VERSION)
+#define USD_COMPONENT_VERSION_COMMA_SEPARATED MAKE_VERSION_NUMBER_COMMA_SEPARATED(COMPONENT_VERSION_MAJOR, COMPONENT_VERSION_MINOR, COMPONENT_VERSION_MICRO, VERSION_INT)
diff --git a/src/USDComponentVersion.r b/src/USDComponentVersion.r
new file mode 100644
index 0000000..0114266
--- /dev/null
+++ b/src/USDComponentVersion.r
@@ -0,0 +1,77 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "UsdComponentVersion.h"
+#include <Windows.h>
+
+// Versioning parameters which may be overriden for various binaries in the component by defining the corresponding macros
+// before including this file
+#ifndef USD_COMPONENT_BINARY_INTERNAL_NAME
+#define USD_COMPONENT_BINARY_INTERNAL_NAME "\0"
+#endif
+ 
+#ifndef USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "\0"
+#endif
+
+#ifndef USD_COMPONENT_BINARY_FILE_DESCRIPTION
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION "\0"
+#endif
+ 
+#ifndef USD_COMPONENT_BINARY_COMMENTS
+#define USD_COMPONENT_BINARY_COMMENTS "\0"
+#endif
+
+// Versioning parameters which should be consistent for all binaries in the component
+#define USD_COMPONENT_BINARY_PRODUCT_NAME "USD for Autodesk 3ds Max\0"
+#define USD_COMPONENT_BINARY_COPYRIGHT "© 2021 Autodesk, Inc. All rights reserved.\0"
+#define USD_COMPONENT_BINARY_COMPANY_NAME "Autodesk, Inc.\0"
+
+// Information block implementing versioning for each binary in the component
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION USD_COMPONENT_VERSION_COMMA_SEPARATED
+PRODUCTVERSION USD_COMPONENT_VERSION_COMMA_SEPARATED
+FILEFLAGSMASK 0x3fL
+#ifdef _DEBUG
+FILEFLAGS VS_FF_DEBUG
+#else
+FILEFLAGS 0x0L
+#endif
+FILEOS VOS_NT_WINDOWS32
+FILETYPE VFT_DLL
+FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName", USD_COMPONENT_BINARY_COMPANY_NAME
+            VALUE "FileVersion",USD_COMPONENT_VERSION_STRING
+            VALUE "InternalName", USD_COMPONENT_BINARY_INTERNAL_NAME
+            VALUE "LegalCopyright", USD_COMPONENT_BINARY_COPYRIGHT
+            VALUE "OriginalFilename", USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME
+            VALUE "Private Build Data", VERSION_STRING
+            VALUE "ProductName", USD_COMPONENT_BINARY_PRODUCT_NAME
+            VALUE "ProductVersion", USD_COMPONENT_VERSION_STRING
+            VALUE "FileDescription", USD_COMPONENT_BINARY_FILE_DESCRIPTION
+            VALUE "Comments", USD_COMPONENT_BINARY_COMMENTS
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END
diff --git a/src/USDComponentVersionNumber.h b/src/USDComponentVersionNumber.h
new file mode 100644
index 0000000..fd49a0e
--- /dev/null
+++ b/src/USDComponentVersionNumber.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Components of version number for the USD component
+#define COMPONENT_VERSION_MAJOR 0
+#define COMPONENT_VERSION_MINOR 9
+#define COMPONENT_VERSION_MICRO 0
diff --git a/src/USDExport/DLLEntry.h b/src/USDExport/DLLEntry.h
new file mode 100644
index 0000000..1255451
--- /dev/null
+++ b/src/USDExport/DLLEntry.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <strbasic.h>
+
+extern MCHAR*    GetString(int id);
+extern HINSTANCE hInstance;
diff --git a/src/USDExport/DllEntry.cpp b/src/USDExport/DllEntry.cpp
new file mode 100644
index 0000000..25df265
--- /dev/null
+++ b/src/USDExport/DllEntry.cpp
@@ -0,0 +1,93 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+#include "resource.h"
+
+#include <iparamb2.h>
+#include <iparamm2.h>
+#include <istdplug.h>
+
+extern ClassDesc2* GetUSDExporterDesc();
+extern ClassDesc2* GetUSDZExporterDesc();
+
+std::array<ClassDesc2*, 2> classDescs = {
+    GetUSDExporterDesc(),
+    GetUSDZExporterDesc(),
+};
+
+HINSTANCE hInstance;
+int       controlsInit = FALSE;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        MaxSDK::Util::UseLanguagePackLocale();
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+        // DO NOT do any initialization here. Use LibInitialize() instead.
+    }
+    return (TRUE);
+}
+
+// This function returns a string that describes the DLL
+__declspec(dllexport) const MCHAR* LibDescription() { return GetString(IDS_LIBDESCRIPTION); }
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) int LibNumberClasses() { return int(classDescs.size()); }
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) ClassDesc* LibClassDesc(int i)
+{
+    if (i < classDescs.size()) {
+        return classDescs[i];
+    }
+
+    return nullptr;
+}
+
+// This function returns a pre-defined constant indicating the version of
+// the system under which it was compiled.  It is used to allow the system
+// to catch obsolete DLLs.
+__declspec(dllexport) ULONG LibVersion() { return VERSION_3DSMAX; }
+
+// This function is called once, right after your plugin has been loaded by 3ds Max.
+// Perform one-time plugin initialization in this method.
+// Return TRUE if you deem your plugin successfully loaded, or FALSE otherwise. If
+// the function returns FALSE, the system will NOT load the plugin, it will then call FreeLibrary
+// on your DLL, and send you a message.
+__declspec(dllexport) int LibInitialize(void) { return TRUE; }
+
+// This function is called once, just before the plugin is unloaded.
+// Perform one-time plugin un-initialization in this method."
+// The system doesn't pay attention to a return value.
+__declspec(dllexport) int LibShutdown(void) { return TRUE; }
+
+MCHAR* GetString(int id)
+{
+    static MCHAR buf[256];
+
+    if (hInstance)
+        return LoadStringW(hInstance, id, buf, _countof(buf)) ? buf : NULL;
+    return NULL;
+}
diff --git a/src/USDExport/USDExport.cpp b/src/USDExport/USDExport.cpp
new file mode 100644
index 0000000..e3772e0
--- /dev/null
+++ b/src/USDExport/USDExport.cpp
@@ -0,0 +1,201 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDExport.h"
+
+#include "DLLEntry.h"
+#include "Views/USDExportDialog.h"
+
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/USDSceneController.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/UiUtils.h>
+
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#include <memory>
+
+#define ScriptPrint (the_listener->edit_stream->printf)
+
+MaxUsd::IUSDExportOptions USDExporter::uiExportOptions(MaxUsd::OptionUtils::LoadExportOptions());
+
+int USDExporter::ExtCount() { return 3; }
+
+const MCHAR* USDExporter::Ext(int index)
+{
+    switch (index) {
+    case 0: return _M("usd");
+    case 1: return _M("usdc");
+    case 2: return _M("usda");
+    default: return nullptr;
+    }
+}
+
+const MCHAR* USDExporter::LongDesc() { return GetString(IDS_LONGDESCRIPTION); }
+
+const MCHAR* USDExporter::ShortDesc() { return GetString(IDS_SHORTDESCRIPTION); }
+
+const MCHAR* USDExporter::AuthorName() { return GetString(IDS_AUTHOR); }
+
+const MCHAR* USDExporter::CopyrightMessage() { return GetString(IDS_COPYRIGHT); }
+
+unsigned int USDExporter::Version() { return 100; }
+
+const MCHAR* USDExporter::OtherMessage1() { return _M(""); }
+
+const MCHAR* USDExporter::OtherMessage2() { return _M(""); }
+
+void USDExporter::ShowAbout(HWND /*hWnd*/)
+{
+    // Optional: nothing to do.
+}
+
+BOOL USDExporter::SupportsOptions(int index, DWORD options)
+{
+    if (index >= 0 && index < ExtCount()) {
+        return (options & SCENE_EXPORT_SELECTED) == SCENE_EXPORT_SELECTED;
+    }
+    return FALSE;
+}
+
+int USDExporter::DoExport(
+    const MCHAR* filename,
+    ExpInterface* /*ei*/,
+    Interface* /*ip*/,
+    BOOL  suppressPrompts,
+    DWORD optionFlags)
+{
+    MaxUsd::USDSceneBuilderOptions::ContentSource contentSource
+        = (optionFlags & SCENE_EXPORT_SELECTED) == SCENE_EXPORT_SELECTED
+        ? MaxUsd::USDSceneBuilderOptions::ContentSource::Selection
+        : MaxUsd::USDSceneBuilderOptions::ContentSource::RootNode;
+    uiExportOptions.SetContentSource(contentSource);
+
+    // Using the global options
+    return ExportFile(filename, uiExportOptions, suppressPrompts);
+}
+
+MaxUsd::IUSDExportOptions& USDExporter::GetUIOptions() { return uiExportOptions; }
+
+void USDExporter::SetUIOptions(const MaxUsd::USDSceneBuilderOptions& newOptions)
+{
+    uiExportOptions.SetOptions(newOptions);
+}
+
+int USDExporter::ExportFile(
+    const MCHAR*               filePath,
+    MaxUsd::IUSDExportOptions& exportOptions,
+    bool                       suppressPrompts,
+    std::string                defaultExt)
+{
+    // make sure to clear cancel flag before/after export
+    const auto resetCancelFlag = MaxUsd::MakeScopeGuard(
+        []() { GetCOREInterface()->SetCancel(false); },
+        []() { GetCOREInterface()->SetCancel(false); });
+
+    if (filePath != nullptr) {
+        auto reportExportConfigError = [](const std::wstring& message) {
+            // Report to both in the maxscript listener and the max log.
+            ScriptPrint(message.c_str());
+            GetCOREInterface()->Log()->LogEntry(
+                SYSLOG_ERROR, NO_DIALOG, L"UsdExporter Configuration Error", message.c_str());
+        };
+        auto exportFile = USDCore::sanitizedFilename(filePath);
+
+        // on UI, max's set the default extension if it's empty
+        // when importing via maxscript, it is possible to have a filepath with no extension
+        if (exportFile.extension().empty()) {
+            // replicate same behavior as when importing in UI
+            exportFile.replace_extension(defaultExt);
+        }
+
+        if (MaxUsd::HasUnicodeCharacter(exportFile.string())) {
+            const MCHAR* errorMsg = L"USD does not support unicode characters in file path, please "
+                                    L"remove these characters.";
+            if (suppressPrompts) {
+                reportExportConfigError(errorMsg);
+            } else {
+                MaxSDK::MaxMessageBox(
+                    GetCOREInterface()->GetMAXHWnd(), errorMsg, _T("Unicode Error"), MB_OK);
+            }
+
+            return IMPEXP_FAIL;
+        }
+
+        // Avoid displaying blocking UI Dialogs when 3ds Max is running in Quiet Mode:
+        if (suppressPrompts) {
+            // When running from a script, make sure there is no mismatch between the extension
+            // and the file format used.
+            const auto ext = exportFile.extension();
+
+            if (exportOptions.GetFileFormat() != MaxUsd::USDSceneBuilderOptions::FileFormat::Binary
+                && ext == ".usdc") {
+                reportExportConfigError(
+                    L"UsdExporter error : #ascii is not a valid file format for the \".usdc\" "
+                    L"extension, consider using #binary instead.\n");
+                return IMPEXP_FAIL;
+            }
+            if (exportOptions.GetFileFormat() != MaxUsd::USDSceneBuilderOptions::FileFormat::ASCII
+                && ext == ".usda") {
+                reportExportConfigError(
+                    L"UsdExporter error : #binary is not a valid file format for the \".usda\" "
+                    L"extension, consider using #ascii instead.\n");
+                return IMPEXP_FAIL;
+            }
+            if (exportOptions.GetContentSource()
+                    != MaxUsd::USDSceneBuilderOptions::ContentSource::NodeList
+                && exportOptions.GetNodesToExport().Count() != 0) {
+                reportExportConfigError(
+                    L"UsdExporter error : argument \"contentSource\" needs to be set to "
+                    L"\"#nodeList\" when a \"nodeList\" has been provided.\n");
+                return IMPEXP_FAIL;
+            }
+            if (exportOptions.GetContentSource()
+                    == MaxUsd::USDSceneBuilderOptions::ContentSource::NodeList
+                && exportOptions.GetNodesToExport().Count() == 0) {
+                reportExportConfigError(L"UsdExporter error : argument \"contentSource:#nodeList\" "
+                                        L"requires \"nodeList\" to be passed as argument.\n");
+                return IMPEXP_FAIL;
+            }
+
+            int result = MaxUsd::GetUSDSceneController()->Export(exportFile, exportOptions);
+
+            return result;
+        } else {
+            std::unique_ptr<IUSDExportView> usdExportDialog
+                = std::make_unique<USDExportDialog>(exportFile, exportOptions);
+            if (usdExportDialog->Execute()) {
+                const auto options = usdExportDialog->GetBuildOptions();
+                SetUIOptions(options);
+
+                int result = MaxUsd::GetUSDSceneController()->Export(exportFile, options);
+                MaxUsd::OptionUtils::SaveExportOptions(uiExportOptions);
+                return result;
+            }
+            return IMPEXP_CANCEL;
+        }
+    }
+    return IMPEXP_FAIL;
+}
+
+ClassDesc2* GetUSDExporterDesc()
+{
+    static USDExporterClassDesc USDExporterDesc;
+    return &USDExporterDesc;
+}
diff --git a/src/USDExport/USDExport.def b/src/USDExport/USDExport.def
new file mode 100644
index 0000000..c5db7e4
--- /dev/null
+++ b/src/USDExport/USDExport.def
@@ -0,0 +1,10 @@
+LIBRARY USDExport.dle
+EXPORTS
+   LibDescription       @1       PRIVATE
+   LibNumberClasses     @2       PRIVATE
+   LibClassDesc         @3       PRIVATE
+   LibVersion           @4       PRIVATE
+   LibInitialize        @6       PRIVATE
+   LibShutdown          @7       PRIVATE
+SECTIONS
+   .data READ WRITE
diff --git a/src/USDExport/USDExport.h b/src/USDExport/USDExport.h
new file mode 100644
index 0000000..e8d8175
--- /dev/null
+++ b/src/USDExport/USDExport.h
@@ -0,0 +1,236 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "resource.h"
+
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+
+#include <impexp.h>
+#include <iparamb2.h>
+#include <maxtypes.h>
+
+/**
+ * \brief Class_ID of the USD Exporter plugin.
+ */
+#define USDExporter_CLASS_ID Class_ID(0x9e90207a, 0x4caca4fe)
+
+/**
+ * \brief USD Exporter.
+ */
+class USDExporter : public SceneExport
+{
+public:
+    /**
+     * \brief Return the number of extensions supported.
+     * \return The number of extensions supported.
+     */
+    int ExtCount() override;
+
+    /**
+     * \brief Return the representation of the supported extension at the given index (without leading dot).
+     * \param index Index of the supported extension for which to return the representation.
+     * \return Return the representation of the supported extension at the given index.
+     */
+    const MCHAR* Ext(int index) override;
+
+    /**
+     * \brief Return a long description for the plugin.
+     * \return A long description for the plugin.
+     */
+    const MCHAR* LongDesc() override;
+
+    /**
+     * \brief Return a short description for the plugin.
+     * \return A short description for the plugin.
+     */
+    const MCHAR* ShortDesc() override;
+
+    /**
+     * \brief Return the name of the author of the plugin.
+     * \return The name of the author of the plugin.
+     */
+    const MCHAR* AuthorName() override;
+
+    /**
+     * \brief Return a copyright message for the plugin.
+     * \return A copyright message for the plugin.
+     */
+    const MCHAR* CopyrightMessage() override;
+
+    /**
+     * \brief Return the first message to be displayed.
+     * \return The first message to be displayed.
+     */
+    const MCHAR* OtherMessage1() override;
+
+    /**
+     * \brief Return the second message to be displayed.
+     * \return The second message to be displayed.
+     */
+    const MCHAR* OtherMessage2() override;
+
+    /**
+     * \brief Return the version number of the plugin.
+     * \remarks The format is the version number * 100 (i.e. "v3.01" is labeled as "301").
+     * \return The version number of the plugin.
+     */
+    unsigned int Version() override;
+
+    /**
+     * \brief Display an "About..." box for the plugin.
+     * \param hWnd Parent window handle of the dialog.
+     */
+    void ShowAbout(HWND hWnd) override;
+
+    /**
+     * \brief Inform 3ds Max about export options support for the given extension index.
+     * \param index The index of the extension being queried for.
+     * \param options Bitmask indicating which export option is being queried.
+     * \return "TRUE" if the given extension supports the given export options, "FALSE" otherwise.
+     */
+    BOOL SupportsOptions(int index, DWORD options) override;
+
+    /**
+     * \brief Perform the file export.
+     * \param filename Filename of the exported file.
+     * \param ei Pointer which may be used to call methods to enumerate the scene.
+     * \param i Interface pointer to be used to call 3ds Max methods.
+     * \param suppressPrompts Flag indicating if UI input prompts should be suppressed.
+     * \param options Bitmak indicating how the export should be performed. If the "SCENE_EXPORT_SELECTED" bit is set,
+     * only the selected nodes should be exported.
+     * \remarks The "options" bitmask is currently ignored by the USD export process.
+     * \return A flag indicating the result of the export (either IMPEXP_FAIL, IMPEXP_SUCCESS, or IMPEXP_CANCEL).
+     */
+    int DoExport(
+        const MCHAR*  filename,
+        ExpInterface* ei,
+        Interface*    i,
+        BOOL          suppressPrompts = FALSE,
+        DWORD         options = 0) override;
+
+    /**
+     * \brief Returns the UI options for the USD exporter.
+     * These are available through Maxscript.
+     * \return The export options.
+     */
+    static MaxUsd::IUSDExportOptions& GetUIOptions();
+
+    /**
+     * \brief Sets the UI options for the USD exporter.
+     * \param newOptions The new export options.
+     */
+    static void SetUIOptions(const MaxUsd::USDSceneBuilderOptions& newOptions);
+
+    /**
+     * \brief Perform the file export with custom options.
+     * \param filePath File path of the exported file.
+     * \param exportOptions Export options to be used during the export.
+     * \param suppressPrompts Flag indicating if UI input prompts should be suppressed.
+     * \param defaultExt Default extension to be added to file name if no extension was provided.
+     * \return A flag indicating the result of the export (either IMPEXP_FAIL, IMPEXP_SUCCESS, or IMPEXP_CANCEL).
+     */
+    static int ExportFile(
+        const MCHAR*               filePath,
+        MaxUsd::IUSDExportOptions& exportOptions,
+        bool                       suppressPrompts = true,
+        std::string                defaultExt = "usd");
+
+private:
+    // Global options for export.
+    static MaxUsd::IUSDExportOptions uiExportOptions;
+};
+
+/**
+ * \brief 3ds Max class description for the USD Exporter plugin.
+ */
+class USDExporterClassDesc : public ClassDesc2
+{
+public:
+    /**
+     * \brief Indicate if the plugin should be displayed in the list of plugins the User can choose from.
+     * \return "TRUE" if the plugin can be picked and assigned by the user, "FALSE" otherwise.
+     */
+    int IsPublic() override { return TRUE; }
+
+    /**
+     * \brief Create an instance of the plugin.
+     * \param loading Flag indicating if the class being created is going to be loaded from a disk file.
+     * \return An instance of the plugin.
+     */
+    void* Create(BOOL /*loading = FALSE*/) override { return new USDExporter(); }
+
+    /**
+     * \brief Return the name of the plugin as it should appear in the 3ds Max UI.
+     * \return The name of the plugin as it should appear in the 3ds Max UI.
+     */
+    const MCHAR* ClassName() override { return GetString(IDS_USDEXPORTER_CLASS_NAME); }
+
+    /**
+     * \brief Return the non-localized name of the class
+     * \return The non-localized name of the plugin.
+     */
+    const MCHAR* NonLocalizedClassName() override
+    {
+        // NOTE: To maintain scripting compatibility with older max version (<2022),
+        //  this value should be set to the en-US equivalent of ClassName()
+        return _T("USDExporter");
+    }
+
+    /**
+     * \brief Return a system-defined constant describing the class from which the plugin is derived.
+     * \return The ID of the plugin's parent type.
+     */
+    SClass_ID SuperClassID() override { return SCENE_EXPORT_CLASS_ID; }
+
+    /**
+     * \brief Return a unique ID for the plugin.
+     * \return A unique ID for the plugin.
+     */
+    Class_ID ClassID() override { return USDExporter_CLASS_ID; }
+
+    /**
+     * \brief Returns a localized string describing the category of the plugin.
+     * \return A localized string describing the category of the plugin.
+     */
+    const MCHAR* Category() override { return GetString(IDS_CATEGORY); }
+
+    /**
+     * \brief Return the internal name of the plugin, which is used (among other things) to expose its features to
+     * MaxScript.
+     * \return The internal name of the plugin.
+     */
+    const MCHAR* InternalName() override { return _M("USDExporter"); }
+
+    /**
+     * \brief Only use the ClassDesc2's internal name when exposing names to MaxScript.
+     * \return "true" if only the internal name should be used when exposing the ClassDesc2's feature to MaxScript,
+     * "false" otherwise.
+     */
+    bool UseOnlyInternalNameForMAXScriptExposure() override { return true; }
+
+    /**
+     * \brief Return the owning module's handle.
+     * \return The owning module's handle.
+     */
+    HINSTANCE HInstance() override { return hInstance; }
+};
+
+/**
+ * \brief Return a reference to the ClassDesc2 definition of the USDExporter.
+ * \return A reference to the ClassDesc2 definition of the USDExporter.
+ */
+ClassDesc2* GetUSDExporterDesc();
\ No newline at end of file
diff --git a/src/USDExport/USDExport.vcxproj b/src/USDExport/USDExport.vcxproj
new file mode 100644
index 0000000..0a73f86
--- /dev/null
+++ b/src/USDExport/USDExport.vcxproj
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>USDExport</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{C26B28EC-ADC4-4519-9060-61B85B371D90}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>USDExport</TargetName>
+    <TargetExt>.dle</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>_USRDLL;USDCORE_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(MaxSdkInc);$(QtInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)/usdexport_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>maxutil.lib;FragmentGraph.lib;GraphicsDriver.lib;GraphicsUtility.lib;ViewSystem.lib;MaxGraphicsObjects.lib;core.lib;geom.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;paramblk2.lib;MaxQtBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ModuleDefinitionFile>$(TargetName).def</ModuleDefinitionFile>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="USDExport.cpp" />
+    <ClCompile Include="USDExportInterface.cpp" />
+    <ClCompile Include="Views\UsdExportAdvancedRollup.cpp" />
+    <ClCompile Include="Views\UsdExportAnimationRollup.cpp" />
+    <ClCompile Include="USDZExport.cpp" />
+    <ClCompile Include="Views\USDExportDialog.cpp" />
+    <ClCompile Include="Views\USDExportCustomChannelMappingsDialog.cpp" />
+    <ClCompile Include="Views\UsdExportFileRollup.cpp" />
+    <ClCompile Include="Views\UsdExportGeneralSettingsRollup.cpp" />
+    <ClCompile Include="Views\UsdExportIncludeRollup.cpp" />
+    <ClCompile Include="Views\UsdExportMaterialsRollup.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="USDExport.h" />
+    <ClInclude Include="usdexport_banned.h" />
+    <ClInclude Include="USDZExport.h" />
+    <ClInclude Include="VersionOverrides.h" />
+    <ClInclude Include="Views\IUSDExportView.h" />
+    <QtMoc Include="Views\UsdExportIncludeRollup.h" />
+    <QtMoc Include="Views\UsdExportGeneralSettingsRollup.h" />
+    <QtMoc Include="Views\UsdExportMaterialsRollup.h" />
+    <QtMoc Include="Views\UsdExportAdvancedRollup.h" />
+    <QtMoc Include="Views\UsdExportAnimationRollup.h" />
+    <ClInclude Include="Views\USDExportDialog.h" />
+    <ClInclude Include="Views\USDExportCustomChannelMappingsDialog.h" />
+    <QtMoc Include="Views\UsdExportFileRollup.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="USDExport.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\UsdExportAdvancedRollup.ui" />
+    <QtUic Include="Views\UsdExportAnimationRollup.ui" />
+    <QtUic Include="Views\USDExportDialog.ui" />
+    <QtUic Include="Views\UsdExportFileRollup.ui" />
+    <QtUic Include="Views\UsdExportGeneralSettingsRollup.ui" />
+    <QtUic Include="Views\UsdExportIncludeRollup.ui" />
+    <QtUic Include="Views\UsdExportMaterialsRollup.ui" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/USDExport/USDExport.vcxproj.filters b/src/USDExport/USDExport.vcxproj.filters
new file mode 100644
index 0000000..ca96f9e
--- /dev/null
+++ b/src/USDExport/USDExport.vcxproj.filters
@@ -0,0 +1,149 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{fbad0f2d-faaa-4b0b-865c-583fac8ddcb1}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;rc;def;r;odl;idl;hpj;bat</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{92f20462-242f-4a0c-883e-b3c33819b84b}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{ad6e765e-4300-41dc-b185-05b019286785}</UniqueIdentifier>
+      <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+    <Filter Include="Source Files\Views">
+      <UniqueIdentifier>{40b107d1-2df2-4129-a7ae-525e1c0b71ee}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\Views">
+      <UniqueIdentifier>{18c12bcc-ffbc-4abc-9901-0f5783c19eb6}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{9b66f5df-6143-4817-b226-6e29e1e1dcb5}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Generated Files">
+      <UniqueIdentifier>{71ED8ED8-ACB9-4CE9-BBE1-E00B30144E11}</UniqueIdentifier>
+      <Extensions>moc;h;cpp</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="USDExport.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\USDExportDialog.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="USDExportInterface.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\USDExportCustomChannelMappingsDialog.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="USDZExport.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportFileRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportAdvancedRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportMaterialsRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportGeneralSettingsRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportAnimationRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\UsdExportIncludeRollup.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="resource.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="usdexport_banned.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="USDExport.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="VersionOverrides.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="USDZExport.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\IUSDExportView.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\USDExportDialog.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\USDExportCustomChannelMappingsDialog.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="USDExport.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\USDExportDialog.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportFileRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportAdvancedRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportMaterialsRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportGeneralSettingsRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportAnimationRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtUic Include="Views\UsdExportIncludeRollup.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="Views\UsdExportAdvancedRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdExportFileRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdExportMaterialsRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdExportGeneralSettingsRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdExportAnimationRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+    <QtMoc Include="Views\UsdExportIncludeRollup.h">
+      <Filter>Header Files\Views</Filter>
+    </QtMoc>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/USDExport/USDExportInterface.cpp b/src/USDExport/USDExportInterface.cpp
new file mode 100644
index 0000000..260c40f
--- /dev/null
+++ b/src/USDExport/USDExportInterface.cpp
@@ -0,0 +1,168 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// 3ds Max SDK
+#include "USDExport.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+#include <max.h>
+
+class USDExportInterface : public FPStaticInterface
+{
+public:
+    DECLARE_DESCRIPTOR(USDExportInterface)
+
+    void SetUIOptions(FPInterface* options)
+    {
+        if (options && options->GetID() == IUSDExportOptions_INTERFACE_ID) {
+            MaxUsd::IUSDExportOptions* exportOptions
+                = dynamic_cast<MaxUsd::IUSDExportOptions*>(options);
+            if (!exportOptions) {
+                throw MAXException(L"Invalid export options object.");
+            }
+            USDExporter::SetUIOptions((*exportOptions));
+        }
+    }
+
+    FPInterface* GetUIOptions() { return &USDExporter::GetUIOptions(); }
+
+    int ExportFile(
+        const MCHAR*       filePath,
+        FPInterface*       usdExportOptions,
+        int                contentSource,
+        const Tab<INode*>* nodesToExport)
+    {
+        // No filePath, can't export so return export failure
+        if (!filePath) {
+            return IMPEXP_FAIL;
+        }
+
+        MaxUsd::IUSDExportOptions* exportOptions = nullptr;
+        int                        res = IMPEXP_FAIL;
+        bool                       toDelete = false;
+
+        // Get export options from argument, if no options were passed, then create a new temporary
+        // export options config
+        if (usdExportOptions && usdExportOptions->GetID() == IUSDExportOptions_INTERFACE_ID) {
+            exportOptions = dynamic_cast<MaxUsd::IUSDExportOptions*>(usdExportOptions);
+        } else if (!usdExportOptions) {
+            exportOptions = new MaxUsd::IUSDExportOptions;
+            toDelete = true;
+        }
+
+        // Export USD file
+        if (exportOptions) {
+            exportOptions->SetContentSource(
+                MaxUsd::USDSceneBuilderOptions::ContentSource(contentSource));
+
+            // if the nodes list wasn't passed in the argument, nodesToExport can reference a null
+            // value
+            if (exportOptions->GetContentSource()
+                    == MaxUsd::USDSceneBuilderOptions::ContentSource::NodeList
+                || (nodesToExport && nodesToExport->Count() > 0)) {
+                exportOptions->SetNodesToExport(*nodesToExport);
+            }
+            res = USDExporter::ExportFile(filePath, (*exportOptions), true, "usd");
+        }
+
+        // Clean up if we used a new temporary default export options config
+        if (toDelete) {
+            delete exportOptions;
+            exportOptions = nullptr;
+        }
+
+        return res;
+    }
+
+    FPInterface* CreateOptions() { return new MaxUsd::IUSDExportOptions; }
+
+    void Log(int messageType, const std::wstring& message)
+    {
+        MaxUsd::Log::Message(MaxUsd::Log::Level(messageType), message);
+    }
+
+    FPInterface* CreateOptionsFromJsonString(const MCHAR* jsonString)
+    {
+        if (jsonString) {
+            MaxUsd::USDSceneBuilderOptions options(MaxUsd::OptionUtils::DeserializeOptionsFromJson(
+                QString::fromWCharArray(jsonString).toUtf8()));
+            return new MaxUsd::IUSDExportOptions(options);
+        }
+        throw MAXException(L"Invalid JSON string");
+    }
+
+    enum
+    {
+        eid_ContentSource,
+        eid_LogLevel
+    };
+
+    enum
+    {
+        fid_SetUIOptions,
+        fid_GetUIOptions,
+        fid_ExportFile,
+        fid_CreateOptions,
+        fid_Log,
+        fid_CreateOptionsFromJsonString
+    };
+
+// clang-format off
+    BEGIN_FUNCTION_MAP
+        PROP_FNS(fid_GetUIOptions, GetUIOptions, fid_SetUIOptions, SetUIOptions, TYPE_INTERFACE);
+        FN_4(fid_ExportFile, TYPE_INT, ExportFile, TYPE_STRING, TYPE_INTERFACE, TYPE_ENUM, TYPE_INODE_TAB);
+        FN_0(fid_CreateOptions, TYPE_INTERFACE, CreateOptions);
+        FN_1(fid_CreateOptionsFromJsonString, TYPE_INTERFACE, CreateOptionsFromJsonString, TYPE_STRING);
+        VFN_2(fid_Log, Log, TYPE_ENUM, TYPE_STRING);
+    END_FUNCTION_MAP
+// clang-format on    
+};
+
+#define USDEXPORT_INTERFACE Interface_ID(0x56ae003c, 0x6d122605)
+
+// clang-format off
+static USDExportInterface usdExportInterface(
+    USDEXPORT_INTERFACE, _T("USDExport"), 0, GetUSDExporterDesc(), 0,
+    // Functions
+    USDExportInterface::fid_ExportFile, _T("ExportFile"), "Export USD file with custom options.", TYPE_INT, FP_NO_REDRAW, 4,
+        _T("filePath"), 0, TYPE_STRING,
+        _T("exportOptions"), 0, TYPE_INTERFACE, f_keyArgDefault, NULL,
+        _T("contentSource"), 0, TYPE_ENUM, USDExportInterface::eid_ContentSource, f_keyArgDefault, MaxUsd::USDSceneBuilderOptions::ContentSource::RootNode,
+        _T("nodeList"), 0, TYPE_INODE_TAB, f_keyArgDefault, NULL,
+    USDExportInterface::fid_CreateOptions, _T("CreateOptions"), "Create a new set of export options filled with default values", TYPE_INTERFACE, FP_NO_REDRAW, 0,
+    USDExportInterface::fid_CreateOptionsFromJsonString, _T("CreateOptionsFromJson"), "Creates export options from a JSON formatted string.", TYPE_INTERFACE, FP_NO_REDRAW, 1,
+        _T("jsonString"), 0, TYPE_STRING,
+    USDExportInterface::fid_Log, _T("Log"), "Log info, warning, and error messages to USD export logs from USD export callbacks.", TYPE_VOID, FP_NO_REDRAW, 2,
+        _T("logLevel"), 0, TYPE_ENUM, USDExportInterface::eid_LogLevel,
+        _T("message"), 0, TYPE_STRING, properties,
+    properties,
+    USDExportInterface::fid_GetUIOptions, USDExportInterface::fid_SetUIOptions, _T("UIOptions"), 0, TYPE_INTERFACE,
+    enums,
+    USDExportInterface::eid_ContentSource, 3,
+        _T("all"), MaxUsd::USDSceneBuilderOptions::ContentSource::RootNode,
+        _T("selected"), MaxUsd::USDSceneBuilderOptions::ContentSource::Selection,
+        _T("nodeList"), MaxUsd::USDSceneBuilderOptions::ContentSource::NodeList,
+    USDExportInterface::eid_LogLevel, 3,
+        _T("info"), MaxUsd::Log::Level::Info,
+        _T("warn"), MaxUsd::Log::Level::Warn,
+        _T("error"), MaxUsd::Log::Level::Error,
+    p_end
+);
+// clang-format on
\ No newline at end of file
diff --git a/src/USDExport/USDZExport.cpp b/src/USDExport/USDZExport.cpp
new file mode 100644
index 0000000..37fc624
--- /dev/null
+++ b/src/USDExport/USDZExport.cpp
@@ -0,0 +1,61 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDZExport.h"
+
+#include "DLLEntry.h"
+#include "Views/USDExportDialog.h"
+
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+#include <MaxUsd/USDSceneController.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#define ScriptPrint (the_listener->edit_stream->printf)
+
+int USDZExporter::ExtCount() { return 1; }
+
+const MCHAR* USDZExporter::Ext(int index) { return (index == 0) ? _M("usdz") : nullptr; }
+
+const MCHAR* USDZExporter::LongDesc() { return GetString(IDS_USDZ_LONGDESCRIPTION); }
+
+const MCHAR* USDZExporter::ShortDesc() { return GetString(IDS_USDZ_SHORTDESCRIPTION); }
+
+int USDZExporter::DoExport(
+    const MCHAR* filename,
+    ExpInterface* /*ei*/,
+    Interface* /*ip*/,
+    BOOL  suppressPrompts,
+    DWORD optionFlags)
+{
+    MaxUsd::USDSceneBuilderOptions::ContentSource contentSource
+        = (optionFlags & SCENE_EXPORT_SELECTED) == SCENE_EXPORT_SELECTED
+        ? MaxUsd::USDSceneBuilderOptions::ContentSource::Selection
+        : MaxUsd::USDSceneBuilderOptions::ContentSource::RootNode;
+    auto uiExportOptions = GetUIOptions();
+
+    uiExportOptions.SetContentSource(contentSource);
+
+    // Using the global options
+    return USDExporter::ExportFile(filename, uiExportOptions, suppressPrompts, "usdz");
+}
+
+ClassDesc2* GetUSDZExporterDesc()
+{
+    static USDZExporterClassDesc USDZExporterDesc;
+    return &USDZExporterDesc;
+}
diff --git a/src/USDExport/USDZExport.h b/src/USDExport/USDZExport.h
new file mode 100644
index 0000000..d11c491
--- /dev/null
+++ b/src/USDExport/USDZExport.h
@@ -0,0 +1,157 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "USDExport.h"
+
+#include <iparamb2.h>
+#include <maxtypes.h>
+
+/**
+ * \brief Class_ID of the USDZ Exporter plugin.
+ */
+#define USDZExporter_CLASS_ID Class_ID(0x1bc20574, 0x187249ab)
+
+/**
+ * \brief USDZ Exporter.
+ */
+class USDZExporter : public USDExporter
+{
+public:
+    /**
+     * \brief Return the number of extensions supported.
+     * \return The number of extensions supported.
+     */
+    int ExtCount() override;
+
+    /**
+     * \brief Return the representation of the supported extension at the given index (without leading dot).
+     * \param index Index of the supported extension for which to return the representation.
+     * \return Return the representation of the supported extension at the given index.
+     */
+    const MCHAR* Ext(int index) override;
+
+    /**
+     * \brief Return a long description for the plugin.
+     * \return A long description for the plugin.
+     */
+    const MCHAR* LongDesc() override;
+
+    /**
+     * \brief Return a short description for the plugin.
+     * \return A short description for the plugin.
+     */
+    const MCHAR* ShortDesc() override;
+
+    /**
+     * \brief Perform the file export.
+     * \param filename Filename of the exported file.
+     * \param ei Pointer which may be used to call methods to enumerate the scene.
+     * \param i Interface pointer to be used to call 3ds Max methods.
+     * \param suppressPrompts Flag indicating if UI input prompts should be suppressed.
+     * \param options Bitmak indicating how the export should be performed. If the "SCENE_EXPORT_SELECTED" bit is set,
+     * only the selected nodes should be exported.
+     * \remarks The "options" bitmask is currently ignored by the USD export process.
+     * \return A flag indicating the result of the export (either IMPEXP_FAIL, IMPEXP_SUCCESS, or IMPEXP_CANCEL).
+     */
+    int DoExport(
+        const MCHAR*  filename,
+        ExpInterface* ei,
+        Interface*    i,
+        BOOL          suppressPrompts = FALSE,
+        DWORD         options = 0) override;
+};
+
+/**
+ * \brief 3ds Max class description for the USDZ Exporter plugin.
+ */
+class USDZExporterClassDesc : public ClassDesc2
+{
+public:
+    /**
+     * \brief Indicate if the plugin should be displayed in the list of plugins the User can choose from.
+     * \return "TRUE" if the plugin can be picked and assigned by the user, "FALSE" otherwise.
+     */
+    int IsPublic() override { return TRUE; }
+
+    /**
+     * \brief Create an instance of the plugin.
+     * \param loading Flag indicating if the class being created is going to be loaded from a disk file.
+     * \return An instance of the plugin.
+     */
+    void* Create(BOOL /*loading = FALSE*/) override { return new USDZExporter(); }
+
+    /**
+     * \brief Return the name of the plugin as it should appear in the 3ds Max UI.
+     * \return The name of the plugin as it should appear in the 3ds Max UI.
+     */
+    const MCHAR* ClassName() override { return GetString(IDS_USDZEXPORTER_CLASS_NAME); }
+
+    /**
+     * \brief Return the non-localized name of the class
+     * \return The non-localized name of the plugin.
+     */
+    const MCHAR* NonLocalizedClassName() override
+    {
+        // NOTE: To maintain scripting compatibility with older max version (<2022),
+        // this value should be set to the en-US equivalent of ClassName()
+        return _T("USDZExporter");
+    }
+
+    /**
+     * \brief Return a system-defined constant describing the class from which the plugin is derived.
+     * \return The ID of the plugin's parent type.
+     */
+    SClass_ID SuperClassID() override { return SCENE_EXPORT_CLASS_ID; }
+
+    /**
+     * \brief Return a unique ID for the plugin.
+     * \return A unique ID for the plugin.
+     */
+    Class_ID ClassID() override { return USDZExporter_CLASS_ID; }
+
+    /**
+     * \brief Returns a localized string describing the category of the plugin.
+     * \return A localized string describing the category of the plugin.
+     */
+    const MCHAR* Category() override { return GetString(IDS_CATEGORY); }
+
+    /**
+     * \brief Return the internal name of the plugin, which is used (among other things) to expose its features to
+     * MaxScript.
+     * \return The internal name of the plugin.
+     */
+    const MCHAR* InternalName() override { return _M("USDZExporter"); }
+
+    /**
+     * \brief Only use the ClassDesc2's internal name when exposing names to MaxScript.
+     * \return "true" if only the internal name should be used when exposing the ClassDesc2's feature to MaxScript,
+     * "false" otherwise.
+     */
+    bool UseOnlyInternalNameForMAXScriptExposure() override { return true; }
+
+    /**
+     * \brief Return the owning module's handle.
+     * \return The owning module's handle.
+     */
+    HINSTANCE HInstance() override { return hInstance; }
+};
+
+/**
+ * \brief Return a reference to the ClassDesc2 definition of the USDZExporter.
+ * \return A reference to the ClassDesc2 definition of the USDZExporter.
+ */
+ClassDesc2* GetUSDZExporterDesc();
\ No newline at end of file
diff --git a/src/USDExport/VersionOverrides.h b/src/USDExport/VersionOverrides.h
new file mode 100644
index 0000000..cf1eb44
--- /dev/null
+++ b/src/USDExport/VersionOverrides.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Definitions specific to the present .dll
+#define USD_COMPONENT_BINARY_INTERNAL_NAME      "USDComponent\0"
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "USDExport.dle\0"
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION   "3ds Max USD plugin\0"
diff --git a/src/USDExport/Views/IUSDExportView.h b/src/USDExport/Views/IUSDExportView.h
new file mode 100644
index 0000000..4af3475
--- /dev/null
+++ b/src/USDExport/Views/IUSDExportView.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+/**
+ * \brief USD file import dialog.
+ */
+class IUSDExportView
+{
+public:
+    /**
+     * \brief Destructor.
+     */
+    virtual ~IUSDExportView() = 0 { }
+
+    /**
+     * \brief Display the View.
+     * \return A flag indicating whether the User chose to import the USD file.
+     */
+    virtual bool Execute() = 0;
+
+    /**
+     * \brief Get the build configuration options for the file to export.
+     * \return The build configuration options for the file to export.
+     */
+    virtual const MaxUsd::USDSceneBuilderOptions& GetBuildOptions() const = 0;
+};
diff --git a/src/USDExport/Views/USDExportCustomChannelMappingsDialog.cpp b/src/USDExport/Views/USDExportCustomChannelMappingsDialog.cpp
new file mode 100644
index 0000000..8563457
--- /dev/null
+++ b/src/USDExport/Views/USDExportCustomChannelMappingsDialog.cpp
@@ -0,0 +1,336 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDExportCustomChannelMappingsDialog.h"
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/usd/usd/usdFileFormat.h>
+
+#include <Qt/QmaxMainWindow.h>
+
+#include <QtGui/QPaintEngine>
+#include <QtWidgets/QCheckBox>
+#include <QtWidgets/QComboBox>
+#include <QtWidgets/QDialogButtonBox>
+#include <QtWidgets/QFileDialog>
+#include <QtWidgets/QHeaderView>
+#include <QtWidgets/QLabel>
+#include <QtWidgets/QLineEdit>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QTableWidget>
+#include <QtWidgets/QToolTip>
+#include <QtWidgets/QVBoxLayout>
+#include <QtWidgets/QWhatsThis>
+#include <helpsys.h>
+#include <maxapi.h>
+
+USDExportCustomChannelMappingsDialog::USDExportCustomChannelMappingsDialog(
+    MaxUsd::USDSceneBuilderOptions& buildOptions)
+    : buildOptions { buildOptions }
+{
+    setParent(GetCOREInterface()->GetQmaxMainWindow(), windowFlags());
+
+    QDialog     mapDetailsDialog { this, Qt::WindowTitleHint | Qt::WindowCloseButtonHint };
+    QSizePolicy sizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
+    mapDetailsDialog.setSizePolicy(sizePolicy);
+    mapDetailsDialog.setWindowTitle(QObject::tr("Configure mapped channels."));
+
+    QVBoxLayout* VLayout = new QVBoxLayout(&mapDetailsDialog);
+
+    QLabel* tableNameLabel = new QLabel(QString("Channel Data:"));
+    VLayout->addWidget(tableNameLabel);
+
+    mapDetailsDialog.setLayout(VLayout);
+
+    QTableWidget* table = new QTableWidget(MAX_MESHMAPS + NUM_HIDDENMAPS, 4);
+    table->setSizePolicy(QSizePolicy { QSizePolicy::Expanding, QSizePolicy::Expanding });
+
+    table->setHorizontalHeaderLabels({ QObject::tr("Export"),
+                                       QObject::tr("Channel"),
+                                       QObject::tr("Target Primvar"),
+                                       QObject::tr("Primvar Type") });
+
+    table->horizontalHeaderItem(0)->setToolTip(QObject::tr("Select to include in export."));
+    table->horizontalHeaderItem(1)->setToolTip(QObject::tr("Specifies the map channel ID."));
+    table->horizontalHeaderItem(2)->setToolTip(
+        QObject::tr("Type in the specific primvar to target."));
+    table->horizontalHeaderItem(3)->setToolTip(
+        QObject::tr("Specifies the type of primvar for the channel."));
+
+    QStringList headerNameList;
+    for (int i = 0; i < table->model()->columnCount(); i++) {
+        headerNameList.append(table->model()->headerData(i, Qt::Horizontal).toString());
+    }
+
+    QHeaderView* header = table->horizontalHeader();
+    header->setSectionResizeMode(0, QHeaderView::ResizeMode::ResizeToContents);
+
+    /// Apply minimum width for columns with "Interactive" resize mode (e.g. all but the 'export'
+    /// column)
+    QObject::connect(
+        header,
+        &QHeaderView::sectionResized,
+        [header, headerNameList](int logicalIndex, int /*oldSize*/, int newSize) {
+            static bool recursGuard = false;
+            if (recursGuard) {
+                return;
+            }
+
+            const int          margins = MaxSDK::UIScaled(12);
+            const QFontMetrics metrics(header->font());
+            std::map<int, int> columnMinimumWidthMaps = {
+                { 1, metrics.boundingRect(headerNameList[1]).width() + margins },
+                { 2, metrics.boundingRect(headerNameList[2]).width() + margins },
+                { 3, metrics.boundingRect(headerNameList[3]).width() + margins },
+            };
+            for (const auto& item : columnMinimumWidthMaps) {
+                if (logicalIndex == item.first && newSize < item.second) {
+                    recursGuard = true;
+                    header->resizeSection(item.first, item.second);
+                    recursGuard = false;
+                }
+            }
+        });
+
+    table->verticalHeader()->hide();
+    table->horizontalHeader()->setStretchLastSection(true);
+
+    // Setup the table cells from a given config.
+    auto setFromConfig = [this, table](const MaxUsd::MaxMeshConversionOptions conversionOptions) {
+        const MaxUsd::MaxMeshConversionOptions defaultOptions;
+
+        for (int channel = -NUM_HIDDENMAPS; channel < MAX_MESHMAPS; ++channel) {
+            const auto& config = conversionOptions.GetChannelPrimvarConfig(channel);
+            auto        row = channel + NUM_HIDDENMAPS;
+
+            // Enable/disable channel export checkbox :
+
+            QCheckBox* mapCheckbox = new QCheckBox();
+            mapCheckbox->setMaximumSize(QSize { 25, 24 });
+            QWidget*     checkBoxLayoutWidget = new QWidget();
+            QHBoxLayout* checkBoxLayout = new QHBoxLayout();
+            checkBoxLayout->setAlignment(Qt::AlignCenter);
+            checkBoxLayout->addWidget(mapCheckbox);
+            checkBoxLayoutWidget->setLayout(checkBoxLayout);
+
+            // Currently a disabled channel is specified by an empty target primvar. This is not
+            // very practical for the UI. Probably want to change this later, i.e. have a boolean
+            // for enabled/disabled. This probably would impact the Maxscript API however.
+            const bool channelEnabled = !config.GetPrimvarName().IsEmpty();
+            mapCheckbox->setCheckState(
+                channelEnabled ? Qt::CheckState::Checked : Qt::CheckState::Unchecked);
+            QObject::connect(
+                mapCheckbox, &QCheckBox::stateChanged, this, [this, row, table](bool checked) {
+                    auto primvarName = table->cellWidget(row, 2);
+                    primvarName->setDisabled(!checked);
+                    auto primvarType = table->cellWidget(row, 3);
+                    primvarType->setDisabled(!checked);
+                });
+
+            table->setCellWidget(row, 0, checkBoxLayoutWidget);
+
+            QTableWidgetItem* item = new QTableWidgetItem();
+            item->setTextAlignment(Qt::AlignCenter);
+            table->setItem(row, 1, item);
+
+            // Channel column (not editable) :
+
+            item->setFlags(Qt::ItemIsEnabled);
+            if (channel == MAP_SHADING) {
+                item->setText(QObject::tr("Illumination"));
+            } else if (channel == MAP_ALPHA) {
+                item->setText(QObject::tr("Alpha"));
+            } else if (channel == 0) {
+                item->setText(QObject::tr("Color"));
+            } else {
+                item->setText(QString::fromWCharArray(std::to_wstring(channel).c_str()));
+            }
+
+            // Target primvar :
+
+            QLineEdit* lineEdit = new QLineEdit();
+            table->setCellWidget(row, 2, lineEdit);
+            const pxr::TfToken& primvarName = channelEnabled
+                ? config.GetPrimvarName()
+                : defaultOptions.GetChannelPrimvarConfig(channel).GetPrimvarName();
+            lineEdit->setText(primvarName.data());
+            lineEdit->setEnabled(channelEnabled);
+
+            lineEdit->setStyleSheet("");
+
+            connect(lineEdit, &QLineEdit::editingFinished, this, [this, lineEdit]() {
+                const QString lineEditText = lineEdit->text();
+                this->okBtn->setEnabled(true);
+
+                const std::string lineEditStdStringText = lineEditText.toStdString();
+                const std::string validPrimvarName
+                    = pxr::TfMakeValidIdentifier(lineEditStdStringText);
+
+                const auto errorStyle = "QLineEdit{border: 2px solid red; padding-left: 5px; }";
+
+                if (lineEditStdStringText.empty()) {
+                    lineEdit->setToolTip(tr("Primvar name cannot be empty."));
+                    lineEdit->setStyleSheet(errorStyle);
+                } else if (validPrimvarName != lineEditStdStringText) {
+                    lineEdit->setToolTip(tr(
+                        "Primvar name can only contain alphanumeric characters and underscores."));
+                    lineEdit->setStyleSheet(errorStyle);
+                    this->okBtn->setEnabled(false);
+                } else {
+                    QToolTip::hideText();
+                    lineEdit->setToolTip("");
+                    lineEdit->setStyleSheet("");
+                }
+            });
+
+            // Primvar type :
+
+            QComboBox* primvarTypeCombo = new QComboBox();
+            primvarTypeCombo->addItem(QString("TexCoord2fArray"));
+            primvarTypeCombo->addItem(QString("TexCoord3fArray"));
+            primvarTypeCombo->addItem(QString("FloatArray"));
+            primvarTypeCombo->addItem(QString("Float2Array"));
+            primvarTypeCombo->addItem(QString("Float3Array"));
+            primvarTypeCombo->addItem(QString("Color3fArray"));
+
+            const auto primvarType = channelEnabled
+                ? config.GetPrimvarType()
+                : defaultOptions.GetChannelPrimvarConfig(channel).GetPrimvarType();
+            primvarTypeCombo->setCurrentIndex(static_cast<int>(primvarType));
+            primvarTypeCombo->setEnabled(channelEnabled);
+            table->setCellWidget(row, 3, primvarTypeCombo);
+        }
+    };
+
+    const auto meshConversionOptions = this->buildOptions.GetMeshConversionOptions();
+    setFromConfig(meshConversionOptions);
+
+    // Resize the table from the content.
+    table->resizeColumnsToContents();
+    int size { 0 };
+    for (int i = 0; i < table->columnCount(); ++i) {
+        size += table->columnWidth(i);
+    }
+    table->setMinimumWidth(size + 10);
+    VLayout->addWidget(table);
+
+    QHBoxLayout* toggleButtonsLayout = new QHBoxLayout(&mapDetailsDialog);
+
+    auto exportAllButton = new QPushButton(&mapDetailsDialog);
+    exportAllButton->setText(QObject::tr("Select All"));
+    QObject::connect(exportAllButton, &QPushButton::clicked, &mapDetailsDialog, [table]() {
+        for (int i = 0; i < table->rowCount(); ++i) {
+            const auto hLayout = static_cast<QHBoxLayout*>(table->cellWidget(i, 0)->layout());
+            auto       checkBox = static_cast<QCheckBox*>(hLayout->itemAt(0)->widget());
+            checkBox->setCheckState(Qt::Checked);
+        }
+    });
+
+    auto exportNoneButton = new QPushButton(&mapDetailsDialog);
+    exportNoneButton->setText(QObject::tr("Select None"));
+    QObject::connect(exportNoneButton, &QPushButton::clicked, &mapDetailsDialog, [table]() {
+        for (int i = 0; i < table->rowCount(); ++i) {
+            const auto hLayout = static_cast<QHBoxLayout*>(table->cellWidget(i, 0)->layout());
+            auto       checkBox = static_cast<QCheckBox*>(hLayout->itemAt(0)->widget());
+            checkBox->setCheckState(Qt::Unchecked);
+        }
+    });
+
+    QSpacerItem* horizontalSpacerItem
+        = new QSpacerItem(1, 1, QSizePolicy::Expanding, QSizePolicy::Fixed);
+
+    auto resetSettingsButton = new QPushButton(&mapDetailsDialog);
+    resetSettingsButton->setText(QObject::tr("Reset Settings"));
+    QObject::connect(
+        resetSettingsButton, &QPushButton::clicked, &mapDetailsDialog, [table, &setFromConfig]() {
+            setFromConfig(MaxUsd::MaxMeshConversionOptions {});
+        });
+
+    toggleButtonsLayout->addWidget(exportAllButton);
+    toggleButtonsLayout->addWidget(exportNoneButton);
+    toggleButtonsLayout->addSpacerItem(horizontalSpacerItem);
+    toggleButtonsLayout->addWidget(resetSettingsButton);
+
+    VLayout->addLayout(toggleButtonsLayout);
+
+    QFrame* hFrame = new QFrame;
+    hFrame->setFrameShape(QFrame::HLine);
+    VLayout->addWidget(hFrame);
+
+    QDialogButtonBox* okCancelButtons = new QDialogButtonBox(&mapDetailsDialog);
+    okCancelButtons->setObjectName(QString::fromUtf8("Buttons"));
+    okCancelButtons->setStandardButtons(QDialogButtonBox::Cancel | QDialogButtonBox::Ok);
+
+    this->okBtn = okCancelButtons->button(QDialogButtonBox::Ok);
+
+    connect(
+        okCancelButtons,
+        &QDialogButtonBox::accepted,
+        &mapDetailsDialog,
+        [this, &mapDetailsDialog, table]() {
+            const MaxUsd::MaxMeshConversionOptions defaultOptions;
+            MaxUsd::MaxMeshConversionOptions       conversionOptions
+                = this->buildOptions.GetMeshConversionOptions();
+            for (int i = 0; i < table->rowCount(); ++i) {
+                QHBoxLayout* hLayout = static_cast<QHBoxLayout*>(table->cellWidget(i, 0)->layout());
+                QCheckBox*   checkBox = static_cast<QCheckBox*>(hLayout->itemAt(0)->widget());
+                QLineEdit*   targetPrimvarWidget = static_cast<QLineEdit*>(table->cellWidget(i, 2));
+                QComboBox*   primvarTypeComboBox = static_cast<QComboBox*>(table->cellWidget(i, 3));
+
+                if (checkBox->isChecked()) {
+                    MaxUsd::MappedAttributeBuilder::Type primvarType {
+                        // default value required
+                        // prevent C4701: potentially uninitialized local variable 'primvarType'
+                        // used
+                        MaxUsd::MappedAttributeBuilder::Type::TexCoord2fArray
+                    };
+                    QString selectedPrimvar = primvarTypeComboBox->currentText();
+                    if (selectedPrimvar == "Color3fArray") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::Color3fArray;
+                    } else if (selectedPrimvar == "Float3Array") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::Float3Array;
+                    } else if (selectedPrimvar == "Float2Array") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::Float2Array;
+                    } else if (selectedPrimvar == "FloatArray") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::FloatArray;
+                    } else if (selectedPrimvar == "TexCoord3fArray") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::TexCoord3fArray;
+                    } else if (selectedPrimvar == "TexCoord2fArray") {
+                        primvarType = MaxUsd::MappedAttributeBuilder::Type::TexCoord2fArray;
+                    }
+
+                    conversionOptions.SetChannelPrimvarConfig(
+                        i - NUM_HIDDENMAPS,
+                        { pxr::TfToken(targetPrimvarWidget->text().toStdString()), primvarType });
+                } else {
+                    const auto channel = i - NUM_HIDDENMAPS;
+                    conversionOptions.SetChannelPrimvarConfig(
+                        channel,
+                        { pxr::TfToken(),
+                          defaultOptions.GetChannelPrimvarConfig(channel).GetPrimvarType() });
+                }
+            }
+            this->buildOptions.SetMeshConversionOptions(conversionOptions);
+            mapDetailsDialog.accept();
+        });
+
+    connect(okCancelButtons, &QDialogButtonBox::rejected, &mapDetailsDialog, &QDialog::reject);
+
+    VLayout->addWidget(okCancelButtons);
+
+    mapDetailsDialog.adjustSize();
+    mapDetailsDialog.exec();
+}
\ No newline at end of file
diff --git a/src/USDExport/Views/USDExportCustomChannelMappingsDialog.h b/src/USDExport/Views/USDExportCustomChannelMappingsDialog.h
new file mode 100644
index 0000000..dc47281
--- /dev/null
+++ b/src/USDExport/Views/USDExportCustomChannelMappingsDialog.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+
+#include <QtWidgets/QDialog>
+
+class USDExportCustomChannelMappingsDialog : public QDialog
+{
+
+public:
+    USDExportCustomChannelMappingsDialog(MaxUsd::USDSceneBuilderOptions& buildOptions);
+
+protected:
+    // USD Scene build configuration options:
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+    // OK Button
+    QPushButton* okBtn;
+};
diff --git a/src/USDExport/Views/USDExportDialog.cpp b/src/USDExport/Views/USDExportDialog.cpp
new file mode 100644
index 0000000..69fb960
--- /dev/null
+++ b/src/USDExport/Views/USDExportDialog.cpp
@@ -0,0 +1,398 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDExportDialog.h"
+
+#include "USDExportCustomChannelMappingsDialog.h"
+#include "UsdExportAdvancedRollup.h"
+#include "UsdExportAnimationRollup.h"
+#include "UsdExportFileRollup.h"
+#include "UsdExportGeneralSettingsRollup.h"
+#include "UsdExportIncludeRollup.h"
+#include "UsdExportMaterialsRollup.h"
+#include "ui_USDExportDialog.h"
+
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/PluginUtils.h>
+#include <MaxUsd/Utilities/UiUtils.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/usd/usd/usdFileFormat.h>
+
+#include <Qt/QmaxMainWindow.h>
+#include <Qt/QmaxRollup.h>
+#include <Qt/QmaxRollupContainer.h>
+#include <Qt/QmaxToolClips.h>
+
+#include <IPathConfigMgr.h>
+#include <QtGui/qevent.h>
+#include <QtGui/qscreen.h>
+#include <QtGui/qstandarditemmodel.h>
+#include <QtWidgets/QDialogButtonBox>
+#include <QtWidgets/qabstractspinbox.h>
+#include <QtWidgets/qcombobox.h>
+#include <QtWidgets/qfiledialog.h>
+#include <QtWidgets/qpushbutton.h>
+#include <QtWidgets/qstyle.h>
+#include <QtWidgets/qwhatsthis.h>
+#include <helpsys.h>
+#include <maxapi.h>
+
+#define idh_usd_export _T("idh_usd_export")
+
+USDExportDialog::USDExportDialog(
+    const fs::path&                  filePath,
+    const MaxUsd::IUSDExportOptions& buildOptions)
+    : ui { std::make_unique<Ui::ExportDialog>() }
+    , buildOptions { buildOptions }
+    , exportPath { filePath }
+{
+    setWindowFlags(windowFlags() | Qt::WindowContextHelpButtonHint);
+    ui->setupUi(this);
+    setParent(GetCOREInterface()->GetQmaxMainWindow(), windowFlags());
+    resize(MaxSDK::UIScaled(430), MaxSDK::UIScaled(850));
+
+    const int smallPadding = MaxSDK::UIScaled(6);
+    ui->footer->setContentsMargins(smallPadding, smallPadding, smallPadding, smallPadding);
+    ui->footer->setSpacing(smallPadding);
+
+    ui->buttons->button(QDialogButtonBox::Ok)->setText(tr("Export"));
+
+    ui->openInUsdViewCheckbox->setChecked(buildOptions.GetOpenInUsdview());
+    connect(ui->openInUsdViewCheckbox, &QAbstractButton::clicked, this, [this](bool checked) {
+        this->buildOptions.SetOpenInUsdview(checked);
+    });
+
+    const auto pathQstr = QString::fromStdString(filePath.parent_path().u8string());
+    ui->ExportPathLineEdit->setText(pathQstr);
+    // Disable Max tooltips as they do not handle long strings well.
+    ui->ExportPathLineEdit->setToolTip(pathQstr);
+
+    // The rollup container is a custom widget that does not play well with the
+    // assumptions of the Qt Designer, so there is a dummy placeholder QWidget
+    // in the .ui file that gets replaced here.
+    auto rollupContainer = new MaxSDK::QmaxRollupContainer(this);
+    layout()->replaceWidget(ui->rollupContainer, rollupContainer);
+    ui->rollupContainer->deleteLater();
+    ui->rollupContainer = rollupContainer;
+    auto rollupState = MaxUsd::OptionUtils::LoadRollupStates(rollupCategory);
+    auto addRollup = [rollupContainer, &rollupState](QWidget* w, bool open = true) {
+        MaxSDK::QmaxRollup* rollup = new MaxSDK::QmaxRollup(w->windowTitle());
+        rollup->setWidget(w);
+        rollup->setOptions(MaxSDK::QmaxRollup::FixedCat);
+        if (rollupState.find(w->windowTitle()) != rollupState.end()) {
+            open = rollupState[w->windowTitle()];
+        }
+        rollup->setOpen(open);
+        rollupContainer->addRollup(rollup);
+    };
+    addRollup(new UsdExportFileRollup(filePath, this->buildOptions));
+
+    // This needs to be done AFTER the file rollup is added - as the addRollup
+    // call creates the internal widget.
+    if (auto widget = rollupContainer->widget()) {
+        if (auto rollupContainterLayout = dynamic_cast<QVBoxLayout*>(widget->layout())) {
+            rollupContainterLayout->insertWidget(0, ui->ExportPathGroupBox);
+        }
+        const int pixelPadding = MaxSDK::UIScaled(1);
+        const int tinyPadding = MaxSDK::UIScaled(3);
+        widget->setContentsMargins(tinyPadding, tinyPadding, pixelPadding, 0);
+    }
+
+    // -------------------------------------------------------------------------
+    // Plug-in Configurations
+    // -------------------------------------------------------------------------
+    const auto& currentContexts = buildOptions.GetContextNames();
+    auto        contexts = pxr::MaxUsdJobContextRegistry::ListJobContexts();
+
+    // filters out the import contexts
+    contexts.erase(
+        std::remove_if(
+            contexts.begin(),
+            contexts.end(),
+            [](pxr::TfToken& c) {
+                return !pxr::MaxUsdJobContextRegistry::GetJobContextInfo(c).exportEnablerCallback;
+            }),
+        contexts.end());
+
+    if (!contexts.empty()) {
+        // sort the registered export chasers alphabetically
+        std::sort(
+            contexts.begin(), contexts.end(), [](const pxr::TfToken& a, const pxr::TfToken& b) {
+                return pxr::MaxUsdJobContextRegistry::GetJobContextInfo(a).niceName
+                    < pxr::MaxUsdJobContextRegistry::GetJobContextInfo(b).niceName;
+            });
+
+        if (auto rollup = new MaxSDK::QmaxRollup(tr("Plug-in Configurations"))) {
+            rollup->setOptions(MaxSDK::QmaxRollup::FixedCat);
+
+            auto widget = new QWidget(rollup);
+            auto layout = new QVBoxLayout(widget);
+
+            int offset = MaxSDK::UIScaled(3);
+            int largeOffset = MaxSDK::UIScaled(6);
+            layout->setContentsMargins(largeOffset, offset, offset, MaxSDK::UIScaled(4));
+            layout->setSpacing(MaxSDK::UIScaled(2));
+
+            rollup->setWidget(widget);
+
+            bool first_context = true;
+
+            for (const auto& context : contexts) {
+                const auto& contextInfo = pxr::MaxUsdJobContextRegistry::GetJobContextInfo(context);
+
+                auto        jobContext = contextInfo.jobContext;
+                std::string contextName = jobContext.GetString();
+                std::string contextNiceName = contextInfo.niceName.GetString();
+
+                auto contextLayout = new QHBoxLayout();
+                contextLayout->setContentsMargins(0, 0, 0, 0);
+
+                auto contextCheckBox
+                    = new QCheckBox(QString::fromStdString(contextNiceName), widget);
+                contextCheckBox->setObjectName(
+                    QString("Enable_Context_%1").arg(QString::fromStdString(contextName)));
+                contextCheckBox->setToolTip(contextInfo.exportDescription.GetString().c_str());
+                contextCheckBox->setChecked(currentContexts.find(context) != currentContexts.end());
+                contextLayout->addWidget(contextCheckBox, 1);
+
+                if (contextInfo.exportOptionsCallback != nullptr) {
+                    auto contextOptionsBtn = new QPushButton(tr("Options"), widget);
+                    contextOptionsBtn->setObjectName(
+                        QString("Options_Context_%1").arg(QString::fromStdString(contextName)));
+                    contextLayout->addWidget(contextOptionsBtn, 0);
+
+                    contextOptionsBtn->setEnabled(contextCheckBox->isChecked());
+                    connect(
+                        contextCheckBox,
+                        &QAbstractButton::clicked,
+                        contextOptionsBtn,
+                        &QWidget::setEnabled);
+
+                    auto optionsCallback = contextInfo.exportOptionsCallback;
+                    connect(
+                        contextOptionsBtn,
+                        &QPushButton::clicked,
+                        this,
+                        [this, jobContext, contextName, optionsCallback]() {
+                            pxr::VtDictionary contextOptions = optionsCallback(
+                                contextName,
+                                this,
+                                this->buildOptions.GetJobContextOptions(jobContext));
+                            this->buildOptions.SetJobContextOptions(jobContext, contextOptions);
+                        });
+                }
+
+                connect(
+                    contextCheckBox,
+                    &QAbstractButton::clicked,
+                    this,
+                    [this, contextName](bool checked) {
+                        std::set<std::string> contextNames = this->buildOptions.GetContextNames();
+                        if (checked) {
+                            auto result = contextNames.insert(contextName);
+                            DbgAssert(result.second);
+                        } else {
+                            auto result = contextNames.erase(contextName);
+                            DbgAssert(result == 1u);
+                        }
+                        this->buildOptions.SetContextNames(contextNames);
+                    });
+
+                if (first_context) {
+                    first_context = false;
+                } else {
+                    auto separator = new QFrame();
+                    separator->setFrameStyle(QFrame::HLine | QFrame::Sunken);
+                    layout->addWidget(separator);
+                }
+
+                layout->addLayout(contextLayout);
+            }
+            if (rollupState.find(rollup->title()) != rollupState.end()) {
+                rollup->setOpen(rollupState[rollup->title()]);
+            } else {
+                rollup->setOpen(true);
+            }
+            rollupContainer->addRollup(rollup);
+        }
+    }
+
+    addRollup(new UsdExportIncludeRollup(this->buildOptions));
+    addRollup(new UsdExportMaterialsRollup(this->buildOptions));
+    animationRollup = new UsdExportAnimationRollup(this->buildOptions);
+    addRollup(animationRollup, false);
+    addRollup(new UsdExportGeneralSettingsRollup(this->buildOptions), false);
+    addRollup(new UsdExportAdvancedRollup(this->buildOptions), false);
+
+    QPixmap headerIcon = style()->standardPixmap(QStyle::SP_MessageBoxInformation);
+    ui->left_label->setPixmap(headerIcon);
+    ui->version_label->setText(QString::fromStdString(MaxUsd::GetPluginDisplayVersion()));
+
+    MaxUsd::Ui::IterateOverChildrenRecursively(this, [this](QObject* object) {
+        // 3dsMax ToolClips do not behave so well (linger and do not disappear
+        // or move with the dialog). Disable until these issues are fixed.
+        MaxSDK::QmaxToolClips::disableToolClip(object);
+
+        // The exporter dialog has a scroll area. As you are scrolling down, we
+        // do not want spin and combo boxes to grab focus and scroll through
+        // their values. Fix this with the "StrongFocus" policy and an event
+        // filter filtering out unwanted wheel events on those widgets.
+        if (QAbstractSpinBox::staticMetaObject.cast(object)
+            || QComboBox::staticMetaObject.cast(object)) {
+            object->installEventFilter(this);
+            qobject_cast<QWidget*>(object)->setFocusPolicy(Qt::StrongFocus);
+        }
+    });
+}
+
+USDExportDialog::~USDExportDialog() = default;
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool USDExportDialog::nativeEvent(const QByteArray& eventType, void* message, qintptr* result)
+#else
+bool USDExportDialog::nativeEvent(const QByteArray& eventType, void* message, long* result)
+#endif
+{
+    MSG* msg = static_cast<MSG*>(message); // safe to do because we are on windows only
+    if (msg->message == WM_HELP) {
+        MaxSDK::IHelpSystem::GetInstance()->ShowProductHelpForTopic(idh_usd_export);
+        *result = TRUE;
+        return true;
+    }
+    return false;
+}
+
+bool USDExportDialog::event(QEvent* ev)
+{
+    if (ev->type() == QEvent::EnterWhatsThisMode) {
+        // We need to leave immediately the "What's this" mode, otherwise
+        // system is waiting for a click on particular widget
+        QWhatsThis::leaveWhatsThisMode();
+        // Open a new web page containing help about usd component export
+        MaxSDK::IHelpSystem::GetInstance()->ShowProductHelpForTopic(idh_usd_export);
+        return true;
+    }
+    return __super::event(ev);
+}
+
+void USDExportDialog::showEvent(QShowEvent* ev)
+{
+    constexpr float maxHeightPercent = 0.85f;
+    QDialog::showEvent(ev);
+    QRect screenDim = QGuiApplication::screenAt(this->pos())->availableGeometry();
+    int   maxHeight = static_cast<int>(maxHeightPercent * screenDim.height());
+
+    if (this->height() > maxHeight) {
+        resize(this->width(), maxHeight);
+    }
+
+    // the export button is the one with focus on show dialog
+    // if the focus has not changed when pressing 'enter' the export is launched
+    ui->buttons->button(QDialogButtonBox::StandardButton::Ok)->setFocus(Qt::NoFocusReason);
+}
+
+void USDExportDialog::keyPressEvent(QKeyEvent* e)
+{
+    switch (e->key()) {
+    case Qt::Key_Return:
+    case Qt::Key_Enter: {
+        // ONLY if the export button is still the one with focus
+        // when pressing 'enter' the export is launched
+        QWidget* w = focusWidget();
+        if (w != ui->buttons->button(QDialogButtonBox::StandardButton::Ok))
+            return;
+    } break;
+
+    default: QDialog::keyPressEvent(e);
+    }
+}
+
+bool USDExportDialog::eventFilter(QObject* object, QEvent* event)
+{
+    const QWidget* widget = dynamic_cast<QWidget*>(object);
+    // Combo and Spin boxes need to be explicitly focused to accept wheel events to avoid
+    // mistakenly scrolling through their values while scrolling in the dialog.
+    if (event->type() == QEvent::Wheel && widget && !widget->hasFocus()
+        && (qobject_cast<QAbstractSpinBox*>(object) || qobject_cast<QComboBox*>(object))) {
+        event->ignore();
+        return true;
+    }
+    return QWidget::eventFilter(object, event);
+}
+
+void USDExportDialog::accept()
+{
+    if (buildOptions.GetUseSeparateMaterialLayer()) {
+        auto fNameWithoutExt = exportPath.filename().replace_extension("").string();
+        auto materialLayerPath = MaxUsd::ResolveToken(
+            buildOptions.GetMaterialLayerPath(), "<filename>", fNameWithoutExt);
+
+        auto toLowerCase = [](const std::string& str) {
+            std::string res;
+            res.reserve(str.size());
+            std::transform(
+                str.begin(), str.end(), std::back_inserter(res), [](const unsigned char c) {
+                    return std::tolower(c);
+                });
+            return res;
+        };
+
+        if (toLowerCase(exportPath.filename().string()) == toLowerCase(materialLayerPath)
+            || toLowerCase(exportPath.string()) == toLowerCase(materialLayerPath)) {
+            MaxSDK::MaxMessageBox(
+                GetCOREInterface()->GetMAXHWnd(),
+                L"Export failed because the material layer file path matches the export's target "
+                L"file path. Make the file paths unique to proceed.",
+                _T("Export Error"),
+                MB_ICONEXCLAMATION);
+            return;
+        }
+    }
+    if (MaxUsd::HasUnicodeCharacter(buildOptions.GetMaterialLayerPath())) {
+        MaxSDK::MaxMessageBox(
+            GetCOREInterface()->GetMAXHWnd(),
+            L"Export failed. USD does not support unicode characters in its file paths. Please "
+            L"remove these characters from the path given for materials.",
+            _T("Unicode Error"),
+            MB_ICONEXCLAMATION);
+    } else {
+        animationRollup->SaveDialogState();
+        MaxUsd::OptionUtils::SaveRollupStates(rollupCategory, GetRollupState());
+        QDialog::accept();
+    }
+}
+
+bool USDExportDialog::Execute() { return exec() == QDialog::Accepted; }
+
+const MaxUsd::USDSceneBuilderOptions& USDExportDialog::GetBuildOptions() const
+{
+    return buildOptions;
+}
+
+std::map<QString, bool> USDExportDialog::GetRollupState() const
+{
+    std::map<QString, bool> rollupState;
+    const auto maxRollUpContainer = dynamic_cast<MaxSDK::QmaxRollupContainer*>(ui->rollupContainer);
+    for (int i = 0; i < maxRollUpContainer->numRollups(); ++i) {
+        if (const auto rollup = maxRollUpContainer->rollup(i)) {
+            rollupState[rollup->title()] = rollup->isOpen();
+        }
+    }
+    return rollupState;
+}
diff --git a/src/USDExport/Views/USDExportDialog.h b/src/USDExport/Views/USDExportDialog.h
new file mode 100644
index 0000000..654aa7d
--- /dev/null
+++ b/src/USDExport/Views/USDExportDialog.h
@@ -0,0 +1,122 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "IUSDExportView.h"
+
+#include <MaxUsd/Interfaces/IUSDExportOptions.h>
+
+#include <QtWidgets/qdialog.h>
+#include <memory>
+
+class QStandardItem;
+class QKeyEvent;
+class UsdExportAnimationRollup;
+
+namespace Ui {
+class ExportDialog;
+};
+
+/**
+ * \brief USD file export dialog.
+ */
+class USDExportDialog
+    : public QDialog
+    , public IUSDExportView
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param buildOptions Initial build options to use to initialize the UI.
+     */
+    USDExportDialog(const fs::path& filePath, const MaxUsd::IUSDExportOptions& buildOptions);
+
+    ~USDExportDialog() override;
+
+    /**
+     * \brief Display the View.
+     * \return A flag indicating whether the User chose to export the USD file.
+     */
+    bool Execute() override;
+
+    /**
+     * \brief Get the build configuration options for the file to export.
+     * \return The build configuration options for the file to export.
+     */
+    const MaxUsd::USDSceneBuilderOptions& GetBuildOptions() const override;
+
+protected:
+    /**
+     * \brief Callback function that is called on platform/OS native events.
+     *	See https://doc.qt.io/qt-5/qwidget.html#nativeEvent4 for more information.
+     * \param eventType QByteArray ref that holds the type of platform/OS that generated the event.
+     * \param message void pointer holding the message (the actual event).
+     * \param result long pointer holding the result of the operation to be set by the function.
+     */
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    virtual bool nativeEvent(const QByteArray& eventType, void* message, qintptr* result) override;
+#else
+    virtual bool nativeEvent(const QByteArray& eventType, void* message, long* result) override;
+#endif
+
+    /**
+     * \brief Callback function that is called on Qt events.
+     * \param ev Pointer to QEvent object that holds information on the event.
+     */
+    bool event(QEvent* ev) override;
+
+    /**
+     * \brief Callback function that is called on Qt show events.
+     * \param ev Pointer to QShowEvent object that holds information on the show event.
+     */
+    void showEvent(QShowEvent* ev) override;
+
+    /**
+     * \brief Callback function that is called on Qt key press events.
+     * \param e Pointer to QKeyEvent object that holds information on the key press event.
+     */
+    void keyPressEvent(QKeyEvent* e) override;
+
+    /**
+     * \brief Filter the mouse wheel event on spin and combo boxes if not in focus to avoid them "stealing"
+     * the focus of the scroll when scrolling in the dialog.
+     * \param object The object to filter on.
+     * \param event The event to be filtered.
+     */
+    bool eventFilter(QObject* object, QEvent* event) override;
+
+    /*
+     * \brief The dialog's accept behavior
+     */
+    void accept() override;
+
+    /**
+     * \brief Get the state (open/close) of all the rollups.
+     * \return A map of the rollup names and their state (open/close).
+     */
+    std::map<QString, bool> GetRollupState() const;
+
+    /// Reference to the Qt UI View of the dialog:
+    std::unique_ptr<Ui::ExportDialog> ui;
+    UsdExportAnimationRollup*         animationRollup;
+
+    /// USD Scene build configuration options:
+    MaxUsd::USDSceneBuilderOptions buildOptions;
+    /// The full path where the USD file will be exported:
+    fs::path exportPath;
+
+    const QString rollupCategory = "ExportDialogRollups";
+};
diff --git a/src/USDExport/Views/USDExportDialog.ui b/src/USDExport/Views/USDExportDialog.ui
new file mode 100644
index 0000000..c2b0327
--- /dev/null
+++ b/src/USDExport/Views/USDExportDialog.ui
@@ -0,0 +1,217 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExportDialog</class>
+ <widget class="QDialog" name="ExportDialog">
+  <property name="windowModality">
+   <enum>Qt::ApplicationModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>496</width>
+    <height>645</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>USD Exporter</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QFrame" name="header">
+     <property name="autoFillBackground">
+      <bool>false</bool>
+     </property>
+     <property name="styleSheet">
+      <string notr="true">background-color: rgb(3, 75, 124);
+color: rgb(255, 255, 255);
+outline-color: rgb(0, 173, 229);
+QFrame{border: 1px solid rgb(0, 173, 229)}</string>
+     </property>
+     <property name="frameShape">
+      <enum>QFrame::Box</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_6" stretch="0,1,0">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>9</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QWidget" name="widget" native="true">
+        <property name="styleSheet">
+         <string notr="true">background-color: rgb(0, 173, 229);</string>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout_4">
+         <item>
+          <widget class="QLabel" name="left_label">
+           <property name="text">
+            <string/>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignCenter</set>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </item>
+      <item>
+       <layout class="QFormLayout" name="formLayout_2">
+        <property name="leftMargin">
+         <number>9</number>
+        </property>
+        <property name="topMargin">
+         <number>9</number>
+        </property>
+        <property name="rightMargin">
+         <number>9</number>
+        </property>
+        <property name="bottomMargin">
+         <number>9</number>
+        </property>
+        <item row="0" column="0">
+         <widget class="QLabel" name="product_label">
+          <property name="text">
+           <string>USD for Autodesk® 3ds Max® :</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QLabel" name="version_label">
+          <property name="text">
+           <string notr="true"/>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="right_label">
+        <property name="styleSheet">
+         <string notr="true">color: #1c1c1c;</string>
+        </property>
+        <property name="text">
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;a href=&quot;https://www.autodesk.com/3dsmax-usd-feedback&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#ffffff;&quot;&gt;Feedback&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
+        <property name="openExternalLinks">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QWidget" name="rollupContainer" native="true">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>1</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="ExportPathGroupBox">
+     <property name="title">
+      <string>Export Directory</string>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_8">
+      <item>
+       <widget class="QLineEdit" name="ExportPathLineEdit">
+        <property name="readOnly">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="footer" stretch="1,0">
+     <item alignment="Qt::AlignRight">
+      <widget class="QCheckBox" name="openInUsdViewCheckbox">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>If selected, the USD file is opened in USDView following the export.</string>
+       </property>
+       <property name="text">
+        <string>View Results in USDView</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttons">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttons</sender>
+   <signal>accepted()</signal>
+   <receiver>ExportDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttons</sender>
+   <signal>rejected()</signal>
+   <receiver>ExportDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>384</x>
+     <y>490</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>231</x>
+     <y>251</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/USDExport/Views/UsdExportAdvancedRollup.cpp b/src/USDExport/Views/UsdExportAdvancedRollup.cpp
new file mode 100644
index 0000000..23f99d5
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAdvancedRollup.cpp
@@ -0,0 +1,107 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportAdvancedRollup.h"
+
+#include "ui_UsdExportAdvancedRollup.h"
+
+#include <MaxUsd/Widgets/TooltipEventFilter.h>
+
+#include <Qt/QmaxToolClips.h>
+
+#include <IPathConfigMgr.h>
+#include <QtWidgets/QFileDialog>
+#include <QtWidgets/QToolTip>
+
+UsdExportAdvancedRollup::UsdExportAdvancedRollup(
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportAdvancedRollup)
+    , buildOptions(buildOptions)
+{
+    ui->setupUi(this);
+
+    const auto& options = buildOptions.GetLogOptions();
+    ui->LogFileGroupBox->setChecked(options.level != MaxUsd::Log::Level::Off);
+    MaxSDK::QmaxToolClips::disableToolClip(ui->LogFileGroupBox);
+
+    const auto logPath = QString::fromStdString(options.path.u8string());
+    ui->LogFilePathLineEdit->setText(logPath);
+    // Disable Max tooltips as they do not handle long strings well.
+    MaxSDK::QmaxToolClips::disableToolClip(ui->LogFilePathLineEdit);
+    ui->LogFilePathLineEdit->setToolTip(logPath);
+
+    ui->AllowNestedGprimsCheckBox->setChecked(buildOptions.GetAllowNestedGprims());
+
+    // filter tootips for the following ui elements
+    auto tooltipFilterFunction = [this](QObject* o) { QToolTip::hideText(); };
+    tooltipFilter = std::make_unique<MaxUsd::TooltipEventFilter>(tooltipFilterFunction);
+    ui->LogFilePathToolButton->installEventFilter(tooltipFilter.get());
+}
+
+UsdExportAdvancedRollup::~UsdExportAdvancedRollup() { }
+
+void UsdExportAdvancedRollup::on_LogFileGroupBox_toggled(bool state)
+{
+    if (state) {
+        if (buildOptions.GetLogLevel() == MaxUsd::Log::Level::Off) {
+            buildOptions.SetLogLevel(
+                static_cast<MaxUsd::Log::Level>(ui->LogOutputTypeComboBox->currentIndex() + 1));
+        } else {
+            ui->LogOutputTypeComboBox->setCurrentIndex(
+                static_cast<int>(buildOptions.GetLogOptions().level) - 1);
+        }
+    } else {
+        buildOptions.SetLogLevel(MaxUsd::Log::Level::Off);
+    }
+
+    // disable/enable groupbox content
+    ui->LogOutputTypeLabel->setEnabled(state);
+    ui->LogOutputTypeComboBox->setEnabled(state);
+    ui->LogFilePathLabel->setEnabled(state);
+    ui->LogFilePathLineEdit->setEnabled(state);
+    ui->LogFilePathToolButton->setEnabled(state);
+}
+
+void UsdExportAdvancedRollup::on_LogOutputTypeComboBox_currentIndexChanged(int index)
+{
+    switch (index) {
+    case 0: buildOptions.SetLogLevel(MaxUsd::Log::Level::Error); break;
+    case 1: buildOptions.SetLogLevel(MaxUsd::Log::Level::Warn); break;
+    case 2: buildOptions.SetLogLevel(MaxUsd::Log::Level::Info); break;
+    default:
+        DbgAssert(false && "Invalid USD export log output type - this should not be hit!");
+        break;
+    }
+}
+
+void UsdExportAdvancedRollup::on_LogFilePathToolButton_clicked()
+{
+    const TCHAR* exportDir
+        = MaxSDKSupport::GetString(IPathConfigMgr::GetPathConfigMgr()->GetDir(APP_EXPORT_DIR));
+    QString qDir = QString::fromStdString(MaxUsd::MaxStringToUsdString(exportDir));
+    QString logfile = QFileDialog::getSaveFileName(
+        this, tr("Select file to save logs"), qDir, tr("Log (*.txt *.log)"));
+    if (!logfile.isEmpty()) {
+        ui->LogFilePathLineEdit->setText(logfile);
+        ui->LogFilePathLineEdit->setToolTip(logfile);
+        buildOptions.SetLogPath(fs::path(logfile.toStdString()));
+    }
+}
+
+void UsdExportAdvancedRollup::on_AllowNestedGprimsCheckBox_stateChanged(int state)
+{
+    buildOptions.SetAllowNestedGprims(state == Qt::Checked);
+}
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportAdvancedRollup.h b/src/USDExport/Views/UsdExportAdvancedRollup.h
new file mode 100644
index 0000000..8c93110
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAdvancedRollup.h
@@ -0,0 +1,57 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <MaxUsd.h>
+#include <QtWidgets/QWidget>
+
+namespace MAXUSD_NS_DEF {
+class TooltipEventFilter;
+}
+
+namespace Ui {
+class UsdExportAdvancedRollup;
+}
+
+class UsdExportAdvancedRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportAdvancedRollup(
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportAdvancedRollup();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_LogFileGroupBox_toggled(bool state);
+    void on_LogOutputTypeComboBox_currentIndexChanged(int index);
+    void on_LogFilePathToolButton_clicked();
+    void on_AllowNestedGprimsCheckBox_stateChanged(int state);
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportAdvancedRollup> ui {
+        std::make_unique<Ui::UsdExportAdvancedRollup>()
+    };
+
+    std::unique_ptr<MaxUsd::TooltipEventFilter> tooltipFilter;
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportAdvancedRollup.ui b/src/USDExport/Views/UsdExportAdvancedRollup.ui
new file mode 100644
index 0000000..b600b8a
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAdvancedRollup.ui
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportAdvancedRollup</class>
+ <widget class="QWidget" name="UsdExportAdvancedRollup">
+  <property name="windowTitle">
+   <string>Advanced</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="LogFileGroupBox">
+     <property name="toolTip">
+      <string>If selected, a log file is output with your render.</string>
+     </property>
+     <property name="title">
+      <string>Log File</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <property name="checked">
+      <bool>false</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout" columnstretch="3,5,1">
+      <item row="0" column="0">
+       <widget class="QLabel" name="LogOutputTypeLabel">
+        <property name="toolTip">
+         <string>Select the type of log data to be stored from exporting your scene. By default, log data is not stored.</string>
+        </property>
+        <property name="text">
+         <string>Output</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1" colspan="2">
+       <widget class="QComboBox" name="LogOutputTypeComboBox">
+        <item>
+         <property name="text">
+          <string>Errors Only</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Errors and Warnings</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Full Log Data</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="LogFilePathLabel">
+        <property name="toolTip">
+         <string>Specify the file path for log data storage.</string>
+        </property>
+        <property name="text">
+         <string>Path</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="LogFilePathLineEdit">
+        <property name="readOnly">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QToolButton" name="LogFilePathToolButton">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Expanding" vsizetype="Maximum">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="AllowNestedGprimsCheckBox">
+     <property name="toolTip">
+      <string>If selected, the export allows for nested geometric prims (Gprims). This can maintain existing hierarchy and help performance by reducing prim counts. Warning: This is not strictly valid in USD and usdchecker will issue warnings.</string>
+     </property>
+     <property name="text">
+      <string>Allow Nested Gprims</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/Views/UsdExportAnimationRollup.cpp b/src/USDExport/Views/UsdExportAnimationRollup.cpp
new file mode 100644
index 0000000..3b6587b
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAnimationRollup.cpp
@@ -0,0 +1,243 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportAnimationRollup.h"
+
+#include "ui_UsdExportAnimationRollup.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+
+#include <QtWidgets/QCheckBox>
+#include <units.h>
+
+UsdExportAnimationRollup::UsdExportAnimationRollup(
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportAnimationRollup)
+    , buildOptions(buildOptions)
+{
+    ui->setupUi(this);
+
+    ui->SkinCheckBox->setChecked(buildOptions.GetTranslateSkin());
+    ui->MorpherCheckBox->setChecked(buildOptions.GetTranslateMorpher());
+
+    const auto timeMode = buildOptions.GetTimeMode();
+    switch (timeMode) {
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange:
+        ui->AnimationRangeRadioButton->setChecked(true);
+        break;
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::CurrentFrame:
+        ui->CurrentFrameRadioButton->setChecked(true);
+        break;
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame:
+        ui->FrameNumberRadioButton->setChecked(true);
+        break;
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange:
+        ui->FrameRangeRadioButton->setChecked(true);
+        break;
+    }
+
+    ui->FrameNumberDoubleSpinBox->setMinimum(-DBL_MAX);
+    ui->FrameNumberDoubleSpinBox->setMaximum(DBL_MAX);
+    ui->FrameRangeStartDoubleSpinBox->setMinimum(-DBL_MAX);
+    ui->FrameRangeStartDoubleSpinBox->setMaximum(DBL_MAX);
+    ui->FrameRangeEndDoubleSpinBox->setMinimum(-DBL_MAX);
+    ui->FrameRangeEndDoubleSpinBox->setMaximum(DBL_MAX);
+
+    // USDSceneBuilderOptions::TimeMode::AnimationRange:
+    double startFrame = GetCOREInterface()->GetAnimRange().Start() / GetTicksPerFrame();
+    double endFrame = GetCOREInterface()->GetAnimRange().End() / GetTicksPerFrame();
+    ui->AnimationRangeLabel->setText(QString::asprintf("%.0lf - %.0lf", startFrame, endFrame));
+    // USDSceneBuilderOptions::TimeMode::CurrentFrame:
+    double currentFrame = GetCOREInterface()->GetTime() / GetTicksPerFrame();
+    ui->CurrentFrameLabel->setText(QString::asprintf("%.0lf", currentFrame));
+
+    // properly set frame numbers based on scene settings
+    // if no user settings were applied already or
+    // on build options that might have been set thru scripting
+    const auto timeConfig = buildOptions.GetResolvedTimeConfig();
+    buildOptions.FetchAnimationRollupData(animationRollupData);
+
+    if (animationRollupData.frameNumberDefault) {
+        if (timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame) {
+            // the default time mode is CurrentFrame
+            // if the dialog initializes to ExplicitFrame without applied defaults
+            // those most have been set thru scripting
+            animationRollupData.frameNumberDefault = false;
+            animationRollupData.frameNumber = timeConfig.GetStartFrame();
+        } else {
+            animationRollupData.frameNumber = currentFrame;
+        }
+    }
+    if (animationRollupData.frameRangeDefault) {
+        if (timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange) {
+            // the default time mode is CurrentRange
+            // if the dialog initializes to FrameRange without applied defaults
+            // those most have been set thru scripting
+            animationRollupData.frameRangeDefault = false;
+            animationRollupData.frameRangeStart = timeConfig.GetStartFrame();
+            animationRollupData.frameRangeEnd = timeConfig.GetEndFrame();
+        } else {
+            animationRollupData.frameRangeStart = startFrame;
+            animationRollupData.frameRangeEnd = endFrame;
+        }
+    }
+    // in case the settings were badly set by scripting
+    // make sure the frame range is a valid one
+    if (timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange
+        && animationRollupData.frameRangeEnd < animationRollupData.frameRangeStart) {
+        animationRollupData.frameRangeEnd = animationRollupData.frameRangeStart;
+    }
+    // USDSceneBuilderOptions::TimeMode::ExplicitFrame
+    ui->FrameNumberDoubleSpinBox->setValue(animationRollupData.frameNumber);
+    ui->FrameNumberDoubleSpinBox->setResetValue(currentFrame); // for ctrl-RMB
+    // USDSceneBuilderOptions::TimeMode::FrameRange:
+    ui->FrameRangeStartDoubleSpinBox->setValue(animationRollupData.frameRangeStart);
+    ui->FrameRangeStartDoubleSpinBox->setResetValue(startFrame); // for ctrl-RMB
+    ui->FrameRangeEndDoubleSpinBox->setValue(animationRollupData.frameRangeEnd);
+    ui->FrameRangeEndDoubleSpinBox->setResetValue(endFrame); // for ctrl-RMB
+    ui->FrameRangeEndDoubleSpinBox->setMinimum(animationRollupData.frameRangeStart);
+
+    ui->SamplePerFrameDoubleSpinBox->setValue(buildOptions.GetSamplesPerFrame());
+    ui->SamplePerFrameDoubleSpinBox->setResetValue(
+        buildOptions.GetSamplesPerFrame()); // for ctrl-RMB
+    SetWidgetsState();
+
+    // made those explicit instead of relying on the automatically generated connection
+    // base on the widgets names; the 'setMinimum' emits 'valueChanged' on those otherwise
+    connect(
+        ui->FrameRangeStartDoubleSpinBox,
+        static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
+        this,
+        &UsdExportAnimationRollup::OnFrameRangeStartValueChanged);
+    connect(
+        ui->FrameRangeEndDoubleSpinBox,
+        static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
+        this,
+        &UsdExportAnimationRollup::OnFrameRangeEndValueChanged);
+}
+
+UsdExportAnimationRollup::~UsdExportAnimationRollup() { }
+
+void UsdExportAnimationRollup::on_AnimationRangeRadioButton_clicked(bool checked)
+{
+    buildOptions.SetTimeMode(MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange);
+    SetWidgetsState();
+}
+
+void UsdExportAnimationRollup::on_CurrentFrameRadioButton_clicked(bool checked)
+{
+    buildOptions.SetTimeMode(MaxUsd::USDSceneBuilderOptions::TimeMode::CurrentFrame);
+    SetWidgetsState();
+}
+
+void UsdExportAnimationRollup::on_FrameNumberRadioButton_clicked(bool checked)
+{
+    buildOptions.SetTimeMode(MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame);
+    SetWidgetsState();
+}
+
+void UsdExportAnimationRollup::on_FrameRangeRadioButton_clicked(bool checked)
+{
+    buildOptions.SetTimeMode(MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+    SetWidgetsState();
+}
+
+void UsdExportAnimationRollup::on_FrameNumberDoubleSpinBox_valueChanged(double value)
+{
+    if (value != animationRollupData.frameNumber) {
+        animationRollupData.frameNumber = value;
+        if (animationRollupData.frameNumberDefault) {
+            animationRollupData.frameNumberDefault = false;
+        }
+    }
+}
+
+void UsdExportAnimationRollup::OnFrameRangeStartValueChanged(double value)
+{
+    if (value != animationRollupData.frameRangeStart) {
+        animationRollupData.frameRangeStart = value;
+        if (animationRollupData.frameRangeDefault) {
+            animationRollupData.frameRangeDefault = false;
+        }
+    }
+    ui->FrameRangeEndDoubleSpinBox->setMinimum(value);
+}
+
+void UsdExportAnimationRollup::OnFrameRangeEndValueChanged(double value)
+{
+    if (value != animationRollupData.frameRangeEnd) {
+        animationRollupData.frameRangeEnd = value;
+        if (animationRollupData.frameRangeDefault) {
+            animationRollupData.frameRangeDefault = false;
+        }
+    }
+}
+
+void UsdExportAnimationRollup::on_SamplePerFrameDoubleSpinBox_valueChanged(double value)
+{
+    buildOptions.SetSamplesPerFrame(value);
+}
+
+void UsdExportAnimationRollup::on_SkinCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateSkin(state == Qt::Checked);
+}
+
+void UsdExportAnimationRollup::on_MorpherCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateMorpher(state == Qt::Checked);
+}
+
+void UsdExportAnimationRollup::SetWidgetsState()
+{
+    const auto timeMode = buildOptions.GetTimeMode();
+
+    ui->AnimationRangeLabel->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange);
+    ui->CurrentFrameLabel->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::CurrentFrame);
+
+    ui->FrameNumberDoubleSpinBox->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame);
+
+    ui->FrameRangeStartDoubleSpinBox->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+    ui->FrameRangeEndDoubleSpinBox->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+
+    ui->SamplesPerFrameLabel->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange
+        || timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+    ui->SamplePerFrameDoubleSpinBox->setEnabled(
+        timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange
+        || timeMode == MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+}
+
+void UsdExportAnimationRollup::SaveDialogState()
+{
+    buildOptions.SaveAnimationRollupData(animationRollupData);
+
+    const auto timeMode = buildOptions.GetTimeMode();
+    switch (timeMode) {
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame:
+        buildOptions.SetStartFrame(animationRollupData.frameNumber);
+        break;
+    case MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange:
+        buildOptions.SetStartFrame(animationRollupData.frameRangeStart);
+        buildOptions.SetEndFrame(animationRollupData.frameRangeEnd);
+        break;
+    }
+}
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportAnimationRollup.h b/src/USDExport/Views/UsdExportAnimationRollup.h
new file mode 100644
index 0000000..4ea8653
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAnimationRollup.h
@@ -0,0 +1,72 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <QtWidgets/QWidget>
+
+namespace Ui {
+class UsdExportAnimationRollup;
+}
+
+class QCheckBox;
+
+class UsdExportAnimationRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportAnimationRollup(
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportAnimationRollup();
+
+    // called when closing the dialog to properly set the build option values
+    // from the user selections; specifically for the frame range selections
+    void SaveDialogState();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_AnimationRangeRadioButton_clicked(bool checked);
+    void on_CurrentFrameRadioButton_clicked(bool checked);
+    void on_FrameNumberRadioButton_clicked(bool checked);
+    void on_FrameRangeRadioButton_clicked(bool checked);
+
+    void on_FrameNumberDoubleSpinBox_valueChanged(double value);
+    void on_SamplePerFrameDoubleSpinBox_valueChanged(double value);
+
+    void on_SkinCheckBox_stateChanged(int state);
+    void on_MorpherCheckBox_stateChanged(int state);
+
+    // made those explicit instead of relying on the automatically generated connection
+    // base on the widgets names; the 'setMinimum' emits 'valueChanged' on those otherwise
+    void OnFrameRangeStartValueChanged(double value);
+    void OnFrameRangeEndValueChanged(double value);
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportAnimationRollup> ui {
+        std::make_unique<Ui::UsdExportAnimationRollup>()
+    };
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+
+    // dialog state; not all elements can be ruled thru the builder options
+    MaxUsd::USDSceneBuilderOptions::AnimationRollupData animationRollupData;
+
+    void SetWidgetsState();
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportAnimationRollup.ui b/src/USDExport/Views/UsdExportAnimationRollup.ui
new file mode 100644
index 0000000..ee79bea
--- /dev/null
+++ b/src/USDExport/Views/UsdExportAnimationRollup.ui
@@ -0,0 +1,163 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportAnimationRollup</class>
+ <widget class="QWidget" name="UsdExportAnimationRollup">
+  <property name="windowTitle">
+   <string>Animation</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="0">
+    <widget class="QGroupBox" name="TimeRangeBox">
+     <property name="title">
+      <string>Time Range</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="2" column="1">
+       <widget class="MaxUsd::QmaxUsdDoubleSpinBox" name="FrameNumberDoubleSpinBox"/>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLabel" name="CurrentFrameLabel">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLabel" name="AnimationRangeLabel">
+        <property name="text">
+         <string>TextLabel</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="SamplesPerFrameLabel">
+        <property name="text">
+         <string>Samples per Frame</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QRadioButton" name="AnimationRangeRadioButton">
+        <property name="toolTip">
+         <string>Select Animation Range to export animation data from the active timeline.</string>
+        </property>
+        <property name="text">
+         <string>Animation Range</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QRadioButton" name="CurrentFrameRadioButton">
+        <property name="toolTip">
+         <string>Select Current Frame to export animation data from the active frame.</string>
+        </property>
+        <property name="text">
+         <string>Current Frame</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QRadioButton" name="FrameNumberRadioButton">
+        <property name="toolTip">
+         <string>Select Frame Number to export animation data from the specified frame.</string>
+        </property>
+        <property name="text">
+         <string>Frame Number</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QRadioButton" name="FrameRangeRadioButton">
+        <property name="toolTip">
+         <string>Select Frame Range to export animation data from the specified start and end frames.</string>
+        </property>
+        <property name="text">
+         <string>Frame Range</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="MaxUsd::QmaxUsdDoubleSpinBox" name="SamplePerFrameDoubleSpinBox">
+        <property name="toolTip">
+         <string>For Animation Range and Frame Range, select the samples per frame to include at export.</string>
+        </property>
+        <property name="minimum">
+         <double>0.010000000000000</double>
+        </property>
+        <property name="singleStep">
+         <double>0.100000000000000</double>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <layout class="QHBoxLayout" name="FrameRangeHorizontalLayout" stretch="2,1,2">
+        <item>
+         <widget class="MaxUsd::QmaxUsdDoubleSpinBox" name="FrameRangeStartDoubleSpinBox"/>
+        </item>
+        <item>
+         <widget class="QLabel" name="FrameRangeSeparatorLabel">
+          <property name="text">
+           <string>-</string>
+          </property>
+          <property name="alignment">
+           <set>Qt::AlignCenter</set>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="MaxUsd::QmaxUsdDoubleSpinBox" name="FrameRangeEndDoubleSpinBox"/>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="IncludeGroupBox">
+     <property name="title">
+      <string>Deformers</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QCheckBox" name="SkinCheckBox">
+        <property name="toolTip">
+         <string>If selected, this option encodes skin and skeletons as USDSkel in your USD export.</string>
+        </property>
+        <property name="text">
+         <string>Skin</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QCheckBox" name="MorpherCheckBox">
+        <property name="toolTip">
+         <string>Exports morph targets as USD blend shapes.</string>
+        </property>
+        <property name="text">
+         <string>Morph Targets</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QmaxDoubleSpinBox</class>
+   <extends>QDoubleSpinBox</extends>
+   <header location="global">Qt/QmaxSpinBox.h</header>
+  </customwidget>
+  <customwidget>
+   <class>MaxUsd::QmaxUsdDoubleSpinBox</class>
+   <extends>MaxSDK::QmaxDoubleSpinBox</extends>
+   <header location="global">MaxUsd/Widgets/QmaxUsdDoubleSpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/Views/UsdExportFileRollup.cpp b/src/USDExport/Views/UsdExportFileRollup.cpp
new file mode 100644
index 0000000..5e1e33a
--- /dev/null
+++ b/src/USDExport/Views/UsdExportFileRollup.cpp
@@ -0,0 +1,74 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportFileRollup.h"
+
+#include "ui_UsdExportFileRollup.h"
+
+#include <Qt/QmaxToolClips.h>
+
+UsdExportFileRollup::UsdExportFileRollup(
+    const fs::path&                 filePath,
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportFileRollup)
+    , buildOptions(buildOptions)
+{
+    ui->setupUi(this);
+
+    // file name line edit setup
+    const auto filenameQstr = QString::fromStdString(filePath.filename().u8string());
+    ui->FileNameLineEdit->setText(filenameQstr);
+    // Disable Max tooltips as they do not handle long strings well.
+    MaxSDK::QmaxToolClips::disableToolClip(ui->FileNameLineEdit);
+    ui->FileNameLineEdit->setToolTip(filenameQstr);
+
+    auto HideFileFormatComboBox = [this]() {
+        ui->FileFormatComboBox->setDisabled(true);
+        ui->FileFormatComboBox->hide();
+        ui->horizontalLayout->setStretch(0, 1);
+        ui->horizontalLayout->setStretch(1, 2);
+        ui->horizontalLayout->setStretch(2, 0);
+    };
+    // file format initial setup
+    const auto fileExtension = filePath.extension();
+    if (fileExtension == ".usda") {
+        ui->FileFormatComboBox->setCurrentIndex(0);
+        HideFileFormatComboBox();
+    } else if (fileExtension == ".usdc") {
+        ui->FileFormatComboBox->setCurrentIndex(1);
+        HideFileFormatComboBox();
+    } else if (fileExtension == ".usdz") {
+        HideFileFormatComboBox();
+    } else {
+        // handle .usd extension
+        if (buildOptions.GetFileFormat() == MaxUsd::USDSceneBuilderOptions::FileFormat::ASCII) {
+            ui->FileFormatComboBox->setCurrentIndex(0);
+        } else {
+            ui->FileFormatComboBox->setCurrentIndex(1);
+        }
+    }
+}
+
+UsdExportFileRollup::~UsdExportFileRollup() { }
+
+void UsdExportFileRollup::on_FileFormatComboBox_currentIndexChanged(int index)
+{
+    switch (index) {
+    case 0: buildOptions.SetFileFormat(MaxUsd::USDSceneBuilderOptions::FileFormat::ASCII); break;
+    case 1: buildOptions.SetFileFormat(MaxUsd::USDSceneBuilderOptions::FileFormat::Binary); break;
+    default: DbgAssert(false && "Invalid USD export file format - this should not be hit!"); break;
+    }
+}
diff --git a/src/USDExport/Views/UsdExportFileRollup.h b/src/USDExport/Views/UsdExportFileRollup.h
new file mode 100644
index 0000000..78d5b5e
--- /dev/null
+++ b/src/USDExport/Views/UsdExportFileRollup.h
@@ -0,0 +1,46 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <QtWidgets/QWidget>
+
+namespace Ui {
+class UsdExportFileRollup;
+}
+
+class UsdExportFileRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportFileRollup(
+        const fs::path&                 filePath,
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportFileRollup();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_FileFormatComboBox_currentIndexChanged(int index);
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportFileRollup> ui { std::make_unique<Ui::UsdExportFileRollup>() };
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportFileRollup.ui b/src/USDExport/Views/UsdExportFileRollup.ui
new file mode 100644
index 0000000..884b3a4
--- /dev/null
+++ b/src/USDExport/Views/UsdExportFileRollup.ui
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportFileRollup</class>
+ <widget class="QWidget" name="UsdExportFileRollup">
+  <property name="windowTitle">
+   <string>File</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="3,4,2">
+   <item>
+    <widget class="QLabel" name="FileNameLabel">
+     <property name="toolTip">
+      <string>File name defined in the Export Path</string>
+     </property>
+     <property name="text">
+      <string>File Name</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="FileNameLineEdit">
+     <property name="readOnly">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QComboBox" name="FileFormatComboBox">
+     <property name="toolTip">
+      <string>The output format for your USD export.&lt;br&gt;Available formats are determined by the previously selected extension. For .usd, you can select Binary or ASCII.&lt;br&gt;&lt;strong&gt;Binary (.usd, .usdc)&lt;/strong&gt;: optimized for machine readability.&lt;br&gt;&lt;strong&gt;ASCII (.usd, .usda)&lt;/strong&gt;: optimized for human readability.</string>
+     </property>
+     <item>
+      <property name="text">
+       <string>ASCII</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Binary</string>
+      </property>
+     </item>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/Views/UsdExportGeneralSettingsRollup.cpp b/src/USDExport/Views/UsdExportGeneralSettingsRollup.cpp
new file mode 100644
index 0000000..2395a8d
--- /dev/null
+++ b/src/USDExport/Views/UsdExportGeneralSettingsRollup.cpp
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportGeneralSettingsRollup.h"
+
+#include "ui_UsdExportGeneralSettingsRollup.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+
+UsdExportGeneralSettingsRollup::UsdExportGeneralSettingsRollup(
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportGeneralSettingsRollup)
+    , buildOptions(buildOptions)
+{
+    ui->setupUi(this);
+
+    ui->UpAxisComboBox->setCurrentIndex(
+        buildOptions.GetUpAxis() == MaxUsd::USDSceneBuilderOptions::UpAxis::Y ? 0 : 1);
+}
+
+UsdExportGeneralSettingsRollup::~UsdExportGeneralSettingsRollup() { }
+
+void UsdExportGeneralSettingsRollup::on_UpAxisComboBox_currentIndexChanged(int index)
+{
+    switch (index) {
+    case 0: buildOptions.SetUpAxis(MaxUsd::USDSceneBuilderOptions::UpAxis::Y); break;
+    case 1: buildOptions.SetUpAxis(MaxUsd::USDSceneBuilderOptions::UpAxis::Z); break;
+    default: DbgAssert(false && "Invalid USD Up Axis option - this should not be hit!"); break;
+    }
+}
diff --git a/src/USDExport/Views/UsdExportGeneralSettingsRollup.h b/src/USDExport/Views/UsdExportGeneralSettingsRollup.h
new file mode 100644
index 0000000..dfdf16c
--- /dev/null
+++ b/src/USDExport/Views/UsdExportGeneralSettingsRollup.h
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <QtWidgets/QWidget>
+
+namespace Ui {
+class UsdExportGeneralSettingsRollup;
+}
+
+class QCheckBox;
+
+class UsdExportGeneralSettingsRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportGeneralSettingsRollup(
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportGeneralSettingsRollup();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_UpAxisComboBox_currentIndexChanged(int index);
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportGeneralSettingsRollup> ui {
+        std::make_unique<Ui::UsdExportGeneralSettingsRollup>()
+    };
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportGeneralSettingsRollup.ui b/src/USDExport/Views/UsdExportGeneralSettingsRollup.ui
new file mode 100644
index 0000000..b5ee74e
--- /dev/null
+++ b/src/USDExport/Views/UsdExportGeneralSettingsRollup.ui
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportGeneralSettingsRollup</class>
+ <widget class="QWidget" name="UsdExportGeneralSettingsRollup">
+  <property name="windowTitle">
+   <string>General Settings</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,2">
+   <item>
+    <widget class="QLabel" name="UpAxisLabel">
+     <property name="toolTip">
+      <string>Select the upward axis of orientation for your USD scene.</string>
+     </property>
+     <property name="text">
+      <string>Up Axis</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QComboBox" name="UpAxisComboBox">
+     <item>
+      <property name="text">
+       <string>Y</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Z</string>
+      </property>
+     </item>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/Views/UsdExportIncludeRollup.cpp b/src/USDExport/Views/UsdExportIncludeRollup.cpp
new file mode 100644
index 0000000..3bec504
--- /dev/null
+++ b/src/USDExport/Views/UsdExportIncludeRollup.cpp
@@ -0,0 +1,269 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportIncludeRollup.h"
+
+#include "USDExportCustomChannelMappingsDialog.h"
+#include "ui_UsdExportIncludeRollup.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/Widgets/TooltipEventFilter.h>
+
+#include <Qt/QmaxToolClips.h>
+
+#include <QtHelp/QtHelp>
+#include <QtWidgets/QCheckBox>
+#include <maxicon.h>
+
+UsdExportIncludeRollup::UsdExportIncludeRollup(
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportIncludeRollup)
+    , buildOptions(buildOptions)
+    , customChannelMappings()
+{
+    ui->setupUi(this);
+
+    ui->CamerasCheckBox->setChecked(buildOptions.GetTranslateCameras());
+    ui->LightsCheckBox->setChecked(buildOptions.GetTranslateLights());
+    ui->ShapesCheckBox->setChecked(buildOptions.GetTranslateShapes());
+    ui->UsdStagesCheckBox->setChecked(buildOptions.GetUsdStagesAsReferences());
+
+    ui->GeometryGroupBox->setChecked(buildOptions.GetTranslateMeshes());
+
+    QStandardItemModel* meshModel
+        = dynamic_cast<QStandardItemModel*>(ui->MeshFormatComboBox->model());
+    meshModel->item(0)->setToolTip(tr("Exports meshes as they are in the scene."));
+    meshModel->item(1)->setToolTip(tr("Converts to polygonal meshes at export."));
+    meshModel->item(2)->setToolTip(tr("Converts to triangulated mesh at export."));
+    ui->MeshFormatComboBox->setCurrentIndex(
+        static_cast<int>(buildOptions.GetMeshConversionOptions().GetMeshFormat()));
+    ui->MeshFormatComboBox->setToolTip(
+        meshModel->item(static_cast<int>(buildOptions.GetMeshConversionOptions().GetMeshFormat()))
+            ->toolTip());
+
+    ui->PreserveEdgeOrientationCheckBox->setChecked(
+        buildOptions.GetMeshConversionOptions().GetPreserveEdgeOrientation());
+    ui->BakeOffsetTransformCheckBox->setChecked(
+        buildOptions.GetMeshConversionOptions().GetBakeObjectOffsetTransform());
+
+    QStandardItemModel* normalsModel
+        = dynamic_cast<QStandardItemModel*>(ui->NormalsComboBox->model());
+    normalsModel->item(0)->setToolTip(
+        tr("Exports normals as USD primvars (primitive variables). This interpolates "
+           "attribute values over the surface/volume of a prim."));
+    normalsModel->item(1)->setToolTip(tr("Exports surface normals as attributes."));
+    normalsModel->item(2)->setToolTip(tr("Surface normals are not exported."));
+    ui->NormalsComboBox->setCurrentIndex(
+        static_cast<int>(buildOptions.GetMeshConversionOptions().GetNormalMode()));
+    ui->NormalsComboBox->setToolTip(
+        normalsModel
+            ->item(static_cast<int>(buildOptions.GetMeshConversionOptions().GetNormalMode()))
+            ->toolTip());
+
+    IdentifyCurrentVertexChannelMapping();
+    ui->VertexChannelsComboBox->setCurrentIndex(static_cast<int>(currentChannelMappingType));
+    if (currentChannelMappingType == ChannelMappingType::Custom) {
+        customChannelMappings = buildOptions.GetMeshConversionOptions().GetChannelMappings();
+    } else {
+        MaxUsd::MaxMeshConversionOptions defaultOptions;
+        customChannelMappings = defaultOptions.GetChannelMappings();
+    }
+    ui->VertexChannelsToolButton->setEnabled(
+        currentChannelMappingType == ChannelMappingType::Custom);
+    ui->VertexChannelsToolButton->setIcon(MaxSDK::LoadMaxMultiResIcon("Common/Settings"));
+
+    ui->HiddenObjectsGroupBox->setChecked(buildOptions.GetTranslateHidden());
+    MaxSDK::QmaxToolClips::disableToolClip(ui->HiddenObjectsGroupBox);
+    ui->UseUsdVisibilityCheckBox->setChecked(buildOptions.GetUseUSDVisibility());
+
+    // filter tootips for the following ui elements
+    auto tooltipFilterFunction = [this](QObject* o) { QToolTip::hideText(); };
+    tooltipFilter = std::make_unique<MaxUsd::TooltipEventFilter>(tooltipFilterFunction);
+    ui->VertexChannelsComboBox->installEventFilter(tooltipFilter.get());
+    ui->VertexChannelsToolButton->installEventFilter(tooltipFilter.get());
+}
+
+UsdExportIncludeRollup::~UsdExportIncludeRollup() { }
+
+void UsdExportIncludeRollup::on_CamerasCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateCameras(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::on_LightsCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateLights(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::on_ShapesCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateShapes(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::on_SkinCheckBox_stateChanged(int state)
+{
+    buildOptions.SetTranslateSkin(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::on_UsdStagesCheckBox_stateChanged(int state)
+{
+    buildOptions.SetUsdStagesAsReferences(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::on_GeometryGroupBox_toggled(bool state)
+{
+    buildOptions.SetTranslateMeshes(state);
+
+    // disable/enable groupbox's content
+    ui->MeshFormatLabel->setEnabled(state);
+    ui->MeshFormatComboBox->setEnabled(state);
+    ui->PreserveEdgeOrientationCheckBox->setEnabled(state);
+    ui->BakeOffsetTransformCheckBox->setEnabled(state);
+    ui->NormalsLabel->setEnabled(state);
+    ui->NormalsComboBox->setEnabled(state);
+    ui->VertexChannelsLabel->setEnabled(state);
+    ui->VertexChannelsComboBox->setEnabled(state);
+}
+
+void UsdExportIncludeRollup::on_MeshFormatComboBox_currentIndexChanged(int index)
+{
+    buildOptions.SetMeshFormat(static_cast<MaxUsd::MaxMeshConversionOptions::MeshFormat>(index));
+    if (auto* meshModel = dynamic_cast<QStandardItemModel*>(ui->MeshFormatComboBox->model())) {
+        ui->MeshFormatComboBox->setToolTip(meshModel->item(index)->toolTip());
+    }
+}
+
+void UsdExportIncludeRollup::on_PreserveEdgeOrientationCheckBox_stateChanged(int state)
+{
+    auto meshOptions = buildOptions.GetMeshConversionOptions();
+    meshOptions.SetPreserveEdgeOrientation(state == Qt::Checked);
+    buildOptions.SetMeshConversionOptions(meshOptions);
+}
+
+void UsdExportIncludeRollup::on_BakeOffsetTransformCheckBox_stateChanged(int state)
+{
+    auto meshOptions = buildOptions.GetMeshConversionOptions();
+    meshOptions.SetBakeObjectOffsetTransform(state == Qt::Checked);
+    buildOptions.SetMeshConversionOptions(meshOptions);
+}
+
+void UsdExportIncludeRollup::on_NormalsComboBox_currentIndexChanged(int index)
+{
+    buildOptions.SetNormalsMode(static_cast<MaxUsd::MaxMeshConversionOptions::NormalsMode>(index));
+    if (auto* normalsModel = dynamic_cast<QStandardItemModel*>(ui->NormalsComboBox->model())) {
+        ui->NormalsComboBox->setToolTip(normalsModel->item(index)->toolTip());
+    }
+}
+
+void UsdExportIncludeRollup::on_VertexChannelsComboBox_currentIndexChanged(int index)
+{
+    // when leaving custom vertex channel type
+    // save custom channel mappings for later
+    if (currentChannelMappingType == ChannelMappingType::Custom) {
+        customChannelMappings = buildOptions.GetMeshConversionOptions().GetChannelMappings();
+    }
+
+    auto meshOptions = buildOptions.GetMeshConversionOptions();
+    switch (index) {
+    case 0: // all
+    {
+        meshOptions.SetDefaultChannelPrimvarMappings();
+        break;
+    }
+    case 1: // none
+    {
+        const MaxUsd::MaxMeshConversionOptions defaultOptions;
+        for (int channel = -NUM_HIDDENMAPS; channel < MAX_MESHMAPS; ++channel) {
+            meshOptions.SetChannelPrimvarConfig(
+                channel,
+                { pxr::TfToken(),
+                  defaultOptions.GetChannelPrimvarConfig(channel).GetPrimvarType() });
+        }
+        break;
+    }
+    case 2: // custom
+    {
+        if (!customChannelMappings.empty()) {
+            meshOptions.SetChannelMappings(customChannelMappings);
+        }
+        break;
+    }
+    }
+    buildOptions.SetMeshConversionOptions(meshOptions);
+    currentChannelMappingType = static_cast<ChannelMappingType>(index);
+    ui->VertexChannelsToolButton->setEnabled(
+        currentChannelMappingType == ChannelMappingType::Custom);
+}
+
+void UsdExportIncludeRollup::on_VertexChannelsToolButton_clicked()
+{
+    USDExportCustomChannelMappingsDialog mapDetailsDialog { this->buildOptions };
+}
+
+void UsdExportIncludeRollup::on_HiddenObjectsGroupBox_toggled(bool state)
+{
+    buildOptions.SetTranslateHidden(state);
+    // disable/enable groupbox's content
+    ui->UseUsdVisibilityCheckBox->setEnabled(state);
+}
+
+void UsdExportIncludeRollup::on_UseUsdVisibilityCheckBox_stateChanged(int state)
+{
+    buildOptions.SetUseUSDVisibility(state == Qt::Checked);
+}
+
+void UsdExportIncludeRollup::IdentifyCurrentVertexChannelMapping()
+{
+    // Figure out which channel mapping is current.
+    // 1) Options exactly defaults -> "All".
+    // 2) Options exactly defaults, except all disabled -> "None".
+    // 3) Anything else -> "Custom".
+    MaxUsd::MaxMeshConversionOptions defaultOptions;
+    auto                             currentOptions = buildOptions.GetMeshConversionOptions();
+
+    bool isAll = true;
+    bool isNone = true;
+
+    for (const auto& mapping : defaultOptions.GetChannelMappings()) {
+        int  chanelID = std::stoi(mapping.first);
+        auto defaultConfig = defaultOptions.GetChannelPrimvarConfig(chanelID);
+        auto config = currentOptions.GetChannelPrimvarConfig(chanelID);
+        if (config.GetPrimvarName().IsEmpty()) {
+            isAll = false;
+        } else {
+            isNone = false;
+            // Make sure the target primvar name is the default...
+            if (config.GetPrimvarName() != defaultConfig.GetPrimvarName()) {
+                isAll = false;
+            }
+        }
+
+        // For both "All" and "None", the primvar type must be the default one.
+        if (config.GetPrimvarType() != defaultConfig.GetPrimvarType()) {
+            isAll = false;
+            isNone = false;
+        }
+
+        if (!isAll && !isNone) {
+            break; // Means we need to use custom.
+        }
+    }
+
+    currentChannelMappingType
+        = (isAll        ? ChannelMappingType::All
+               : isNone ? ChannelMappingType::None
+                        : ChannelMappingType::Custom);
+}
diff --git a/src/USDExport/Views/UsdExportIncludeRollup.h b/src/USDExport/Views/UsdExportIncludeRollup.h
new file mode 100644
index 0000000..ecfad10
--- /dev/null
+++ b/src/USDExport/Views/UsdExportIncludeRollup.h
@@ -0,0 +1,84 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+#include <MaxUsd.h>
+#include <QtWidgets/QWidget>
+
+namespace Ui {
+class UsdExportIncludeRollup;
+}
+
+namespace MAXUSD_NS_DEF {
+class TooltipEventFilter;
+}
+
+class UsdExportIncludeRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportIncludeRollup(
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportIncludeRollup();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_CamerasCheckBox_stateChanged(int state);
+    void on_LightsCheckBox_stateChanged(int state);
+    void on_ShapesCheckBox_stateChanged(int state);
+    void on_SkinCheckBox_stateChanged(int state);
+    void on_UsdStagesCheckBox_stateChanged(int state);
+
+    void on_GeometryGroupBox_toggled(bool state);
+    void on_MeshFormatComboBox_currentIndexChanged(int index);
+    void on_PreserveEdgeOrientationCheckBox_stateChanged(int state);
+    void on_BakeOffsetTransformCheckBox_stateChanged(int state);
+    void on_NormalsComboBox_currentIndexChanged(int index);
+    void on_VertexChannelsComboBox_currentIndexChanged(int index);
+    void on_VertexChannelsToolButton_clicked();
+
+    void on_HiddenObjectsGroupBox_toggled(bool state);
+    void on_UseUsdVisibilityCheckBox_stateChanged(int state);
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportIncludeRollup> ui {
+        std::make_unique<Ui::UsdExportIncludeRollup>()
+    };
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+
+    std::unique_ptr<MaxUsd::TooltipEventFilter> tooltipFilter;
+
+    /// Simple enum to keep track of the current channel mapping
+    /// used to act to specific changes and properly handle custom settings
+    enum class ChannelMappingType
+    {
+        All,
+        None,
+        Custom
+    };
+    ChannelMappingType currentChannelMappingType;
+    /// Custom channel mapping setup via the "Configure..." button. We keep this around in case the
+    /// the user toggles back and forth, so the the customization is not lost.
+    pxr::VtDictionary customChannelMappings;
+
+    void IdentifyCurrentVertexChannelMapping();
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportIncludeRollup.ui b/src/USDExport/Views/UsdExportIncludeRollup.ui
new file mode 100644
index 0000000..1b5fa9e
--- /dev/null
+++ b/src/USDExport/Views/UsdExportIncludeRollup.ui
@@ -0,0 +1,246 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportIncludeRollup</class>
+ <widget class="QWidget" name="UsdExportIncludeRollup">
+  <property name="windowTitle">
+   <string>Include</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QCheckBox" name="CamerasCheckBox">
+     <property name="toolTip">
+      <string>If selected, cameras from the scene are included in the USD export.</string>
+     </property>
+     <property name="text">
+      <string>Cameras</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="LightsCheckBox">
+     <property name="toolTip">
+      <string>If selected, lights from the scene are included in the USD export.</string>
+     </property>
+     <property name="text">
+      <string>Lights</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="ShapesCheckBox">
+     <property name="toolTip">
+      <string>If selected, shapes from the scene are included in the USD export.</string>
+     </property>
+     <property name="text">
+      <string>Shapes</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCheckBox" name="UsdStagesCheckBox">
+     <property name="toolTip">
+      <string>If selected, USD Stage Objects get exported as USD References. </string>
+     </property>
+     <property name="text">
+      <string>USD Stages</string>
+     </property>
+     <property name="checked">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="GeometryGroupBox">
+     <property name="toolTip">
+      <string>If selected, mesh geometry from the scene is included in the USD export.</string>
+     </property>
+     <property name="title">
+      <string>Geometry</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2" columnstretch="3,5,1">
+      <item row="5" column="0">
+       <widget class="QLabel" name="NormalsLabel">
+        <property name="toolTip">
+         <string>Select the method for exporting surface normals.</string>
+        </property>
+        <property name="text">
+         <string>Normals</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="MeshFormatLabel">
+        <property name="toolTip">
+         <string>Select the format for output meshes.</string>
+        </property>
+        <property name="text">
+         <string>Mesh Format</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1" colspan="2">
+       <widget class="QComboBox" name="MeshFormatComboBox">
+        <item>
+         <property name="text">
+          <string>Preserve Existing</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Convert to Polygons</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Convert to Triangles</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="2" column="1" colspan="2">
+       <widget class="QCheckBox" name="PreserveEdgeOrientationCheckBox">
+        <property name="toolTip">
+         <string>If selected, all exported mesh faces in the scene are made planar. Curved faces get split into a collection of planar surfaces at export.</string>
+        </property>
+        <property name="text">
+         <string>Planar Faces</string>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="0">
+       <widget class="QLabel" name="VertexChannelsLabel">
+        <property name="toolTip">
+         <string>Select the level of export for channels.</string>
+        </property>
+        <property name="text">
+         <string>Vertex Channels</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1" colspan="2">
+       <widget class="QCheckBox" name="BakeOffsetTransformCheckBox">
+        <property name="toolTip">
+         <string>If selected, offset transformations are baked into their geometry.</string>
+        </property>
+        <property name="text">
+         <string>Bake Offset Transform</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="1" colspan="2">
+       <widget class="QComboBox" name="NormalsComboBox">
+        <item>
+         <property name="text">
+          <string>As Primvar</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>As Attribute</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>None</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="6" column="1">
+       <widget class="QComboBox" name="VertexChannelsComboBox">
+        <item>
+         <property name="text">
+          <string>All</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>None</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Custom</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="6" column="2">
+       <widget class="QToolButton" name="VertexChannelsToolButton">
+        <property name="text">
+         <string/>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="HiddenObjectsGroupBox">
+     <property name="toolTip">
+      <string>If selected, hidden objects are included in your USD export.</string>
+     </property>
+     <property name="title">
+      <string>Hidden Objects</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QGridLayout" name="gridLayout" columnstretch="1,20">
+      <item row="0" column="1">
+       <widget class="QCheckBox" name="UseUsdVisibilityCheckBox">
+        <property name="toolTip">
+         <string>If selected, hidden objects are assigned the USD invisible attribute at export.
+
+Important: selecting this option may result in unexpected hidden/visible states after exporting from Max data to USD data. For example: in USD, visible descendants appear hidden if they have hidden ascendants.</string>
+        </property>
+        <property name="text">
+         <string>Use USD Visibility</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <spacer name="UseUsdVisibilityHorizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>175</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/Views/UsdExportMaterialsRollup.cpp b/src/USDExport/Views/UsdExportMaterialsRollup.cpp
new file mode 100644
index 0000000..8584fa9
--- /dev/null
+++ b/src/USDExport/Views/UsdExportMaterialsRollup.cpp
@@ -0,0 +1,226 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdExportMaterialsRollup.h"
+
+#include "ui_UsdExportMaterialsRollup.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+#include <MaxUsd/USDCore.h>
+
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <Qt/QMaxMessageBox.h>
+#include <Qt/QmaxToolClips.h>
+
+#include <IPathConfigMgr.h>
+#include <QtGui/QStandardItemModel>
+#include <QtWidgets/QCheckBox>
+#include <QtWidgets/QComboBox>
+#include <QtWidgets/QFileDialog>
+
+UsdExportMaterialsRollup::UsdExportMaterialsRollup(
+    MaxUsd::USDSceneBuilderOptions& buildOptions,
+    QWidget*                        parent /* = nullptr */)
+    : ui(new Ui::UsdExportMaterialsRollup)
+    , buildOptions(buildOptions)
+{
+    ui->setupUi(this);
+
+    ui->ExportMaterialsGroupBox->setChecked(buildOptions.GetTranslateMaterials());
+    MaxSDK::QmaxToolClips::disableToolClip(ui->ExportMaterialsGroupBox);
+
+    auto               allMaterialConversions = buildOptions.GetAllMaterialConversions();
+    pxr::TfTokenVector materials = pxr::MaxUsdShadingModeRegistry::ListMaterialConversions();
+    for (const auto& material : materials) {
+        if (!(material == pxr::UsdImagingTokens->UsdPreviewSurface || material == "MaterialX")) {
+            continue;
+        }
+        const pxr::MaxUsdShadingModeRegistry::ConversionInfo& conversionInfo
+            = pxr::MaxUsdShadingModeRegistry::GetMaterialConversionInfo(material);
+        QCheckBox* materialSelector = new QCheckBox(conversionInfo.niceName.GetText());
+        materialSelector->setToolTip(conversionInfo.exportDescription.GetText());
+        ui->ConvertToMaterialsLayout->addWidget(materialSelector);
+        materialConversionMap[materialSelector] = material;
+        materialSelector->setChecked(
+            allMaterialConversions.find(material) != allMaterialConversions.end());
+        connect(
+            materialSelector,
+            &QCheckBox::stateChanged,
+            this,
+            &UsdExportMaterialsRollup::OnMaterialConversionStateChanged);
+    }
+
+#ifdef IS_MAX2024_OR_GREATER
+    connect(
+        ui->MaterialSwitcherExportStyleComboBox,
+        qOverload<int>(&QComboBox::currentIndexChanged),
+        this,
+        &UsdExportMaterialsRollup::OnMaterialSwitcherExportStyleComboBoxChanged);
+
+    QStandardItemModel* exportStyleModel
+        = dynamic_cast<QStandardItemModel*>(ui->MaterialSwitcherExportStyleComboBox->model());
+    exportStyleModel->item(0)->setToolTip(
+        tr("All material inputs are exported as material variants."));
+    exportStyleModel->item(1)->setToolTip(
+        tr("Only exports the active material and binds it to the prim."));
+    if (buildOptions.GetMtlSwitcherExportStyle()
+        == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets) {
+        ui->MaterialSwitcherExportStyleComboBox->setCurrentIndex(0);
+    } else {
+        ui->MaterialSwitcherExportStyleComboBox->setCurrentIndex(1);
+    }
+#else
+    ui->MaterialSwitcherOptionWidget->hide();
+#endif
+
+    ui->materialLayerPath->setText(QString::fromStdString(buildOptions.GetMaterialLayerPath()));
+    OnMaterialLayerPathChanged();
+    connect(
+        ui->materialLayerPath,
+        &QLineEdit::editingFinished,
+        this,
+        &UsdExportMaterialsRollup::OnMaterialLayerPathChanged);
+
+    ui->separateMaterialLayer->setChecked(buildOptions.GetUseSeparateMaterialLayer());
+    ui->materialLayerPath->setEnabled(buildOptions.GetUseSeparateMaterialLayer());
+    ui->layerPathLabel->setEnabled(buildOptions.GetUseSeparateMaterialLayer());
+    ui->materialLayerPicker->setEnabled(buildOptions.GetUseSeparateMaterialLayer());
+    connect(
+        ui->separateMaterialLayer,
+        &QCheckBox::clicked,
+        this,
+        &UsdExportMaterialsRollup::OnSeparateMaterialChanged);
+
+    ui->materialPrimPath->setText(
+        QString::fromStdString(buildOptions.GetMaterialPrimPath().GetString()));
+    connect(
+        ui->materialPrimPath,
+        &QLineEdit::editingFinished,
+        this,
+        &UsdExportMaterialsRollup::OnMaterialPrimPathChanged);
+
+    connect(
+        ui->materialLayerPicker,
+        &QToolButton::clicked,
+        this,
+        &UsdExportMaterialsRollup::OnMaterialLayerClicked);
+}
+
+UsdExportMaterialsRollup::~UsdExportMaterialsRollup() { }
+
+void UsdExportMaterialsRollup::on_ExportMaterialsGroupBox_toggled(bool state)
+{
+    buildOptions.SetTranslateMaterials(state);
+
+    // disable/enable groupbox's content (which we do not know in advance)
+    auto layout = ui->ExportMaterialsGroupBox->layout();
+    int  nbLayoutItems = layout->count();
+    for (int i = 0; i < nbLayoutItems; ++i) {
+        auto item = layout->itemAt(i);
+        auto widget = item->widget();
+        // spacer items are not reported as widgets
+        if (widget) {
+            widget->setEnabled(state);
+        }
+    }
+}
+
+void UsdExportMaterialsRollup::OnMaterialConversionStateChanged(bool /*state*/)
+{
+    std::set<pxr::TfToken> allMaterialConversions;
+    for (const auto checkboxItem : materialConversionMap) {
+        if (checkboxItem.first->isChecked()) {
+            allMaterialConversions.insert(checkboxItem.second);
+        }
+    }
+
+    buildOptions.SetAllMaterialConversions(allMaterialConversions);
+}
+
+void UsdExportMaterialsRollup::OnSeparateMaterialChanged(bool checked)
+{
+    buildOptions.SetUseSeparateMaterialLayer(checked);
+    ui->materialLayerPath->setEnabled(checked);
+    ui->layerPathLabel->setEnabled(checked);
+    ui->materialLayerPicker->setEnabled(checked);
+}
+
+void UsdExportMaterialsRollup::OnMaterialPrimPathChanged()
+{
+    const std::string value = ui->materialPrimPath->text().toStdString();
+    std::string       err;
+    if (pxr::SdfPath::IsValidPathString(value, &err)) {
+        pxr::SdfPath primPath(value);
+        if (primPath.IsAbsoluteRootOrPrimPath()) {
+            buildOptions.SetMaterialPrimPath(primPath);
+            return;
+        } else {
+            MaxSDK::QmaxMessageBox(
+                this,
+                QString("Invalid Prim Path, it will not be used for the export."),
+                "Invalid Prim Path",
+                MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
+            return;
+        }
+    } else {
+        MaxSDK::QmaxMessageBox(
+            this,
+            QString("Invalid Prim Path, it will not be used for the export.\n")
+                + QString::fromStdString(err),
+            "Invalid Prim Path",
+            MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
+    }
+}
+
+void UsdExportMaterialsRollup::OnMaterialLayerPathChanged()
+{
+    const QString value = ui->materialLayerPath->text();
+    const auto    path = USDCore::sanitizedFilename(value.toStdString(), ".usda");
+    buildOptions.SetMaterialLayerPath(path.string());
+}
+
+void UsdExportMaterialsRollup::OnMaterialLayerClicked()
+{
+    const TCHAR* exportDir
+        = MaxSDKSupport::GetString(IPathConfigMgr::GetPathConfigMgr()->GetDir(APP_EXPORT_DIR));
+    QString qDir = QString::fromStdString(MaxUsd::MaxStringToUsdString(exportDir));
+    QString materialFile = QFileDialog::getSaveFileName(
+        this, tr("Select file to export materials"), qDir, tr("USD (*.usd *.usdc *.usda)"));
+    if (!materialFile.isEmpty()) {
+        ui->materialLayerPath->setText(materialFile);
+        OnMaterialLayerPathChanged();
+    }
+}
+
+#ifdef IS_MAX2024_OR_GREATER
+void UsdExportMaterialsRollup::OnMaterialSwitcherExportStyleComboBoxChanged(int index)
+{
+    switch (index) {
+    case 0:
+        buildOptions.SetMtlSwitcherExportStyle(
+            MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets);
+        break;
+    case 1:
+        buildOptions.SetMtlSwitcherExportStyle(
+            MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly);
+        break;
+    default:
+        DbgAssert(
+            false && "Invalid USD export Material Switcher export style - this should not be hit!");
+        break;
+    }
+}
+#endif
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportMaterialsRollup.h b/src/USDExport/Views/UsdExportMaterialsRollup.h
new file mode 100644
index 0000000..8b193bb
--- /dev/null
+++ b/src/USDExport/Views/UsdExportMaterialsRollup.h
@@ -0,0 +1,78 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <QtWidgets/QWidget>
+
+namespace Ui {
+class UsdExportMaterialsRollup;
+}
+
+class QCheckBox;
+
+class UsdExportMaterialsRollup : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit UsdExportMaterialsRollup(
+        MaxUsd::USDSceneBuilderOptions& buildOptions,
+        QWidget*                        parent = nullptr);
+    virtual ~UsdExportMaterialsRollup();
+
+public Q_SLOTS:
+    /// Qt callback functions based on named widgets in the associated .ui file
+    void on_ExportMaterialsGroupBox_toggled(bool state);
+#ifdef IS_MAX2024_OR_GREATER
+    void OnMaterialSwitcherExportStyleComboBoxChanged(int index);
+#endif
+
+    /// Rebuild the material conversion set when toggling the material type options.
+    void OnMaterialConversionStateChanged(bool state);
+
+    /*
+     * \brief Callback executed when the checkbox to separate materials into a separate layer is clicked.
+     */
+    void OnSeparateMaterialChanged(bool checked);
+
+    /*
+     * \brief Callback executed when the LineEdit to define the default Prim path for Materials has been committed.
+     */
+    void OnMaterialPrimPathChanged();
+
+    /*
+     * \brief Callback executed when the LineEdit to define the Layer file path has been edited.
+     */
+    void OnMaterialLayerPathChanged();
+    /*
+     * \brief Callback executed when the Tool Button to pick a file for the material layer has been clicked.
+     */
+    void OnMaterialLayerClicked();
+
+private:
+    /// Reference to the Qt UI View of the rollup
+    std::unique_ptr<Ui::UsdExportMaterialsRollup> ui {
+        std::make_unique<Ui::UsdExportMaterialsRollup>()
+    };
+
+    /// Material Conversion options
+    std::map<QCheckBox*, pxr::TfToken> materialConversionMap;
+
+    /// member of USDExportDialog
+    MaxUsd::USDSceneBuilderOptions& buildOptions;
+};
\ No newline at end of file
diff --git a/src/USDExport/Views/UsdExportMaterialsRollup.ui b/src/USDExport/Views/UsdExportMaterialsRollup.ui
new file mode 100644
index 0000000..64c4f49
--- /dev/null
+++ b/src/USDExport/Views/UsdExportMaterialsRollup.ui
@@ -0,0 +1,133 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UsdExportMaterialsRollup</class>
+ <widget class="QWidget" name="UsdExportMaterialsRollup">
+  <property name="windowTitle">
+   <string>Materials</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="ExportMaterialsGroupBox">
+     <property name="toolTip">
+      <string>If selected, material targets defined in this group and through plug-in configurations are used for USD export.</string>
+     </property>
+     <property name="title">
+      <string>Export Materials</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <layout class="QVBoxLayout" name="ConvertToMaterialsLayout"/>
+      </item>
+      <item>
+       <widget class="QWidget" name="MaterialSwitcherOptionWidget" native="true">
+        <layout class="QGridLayout" name="MaterialSwitcherOptionLayout" columnstretch="1,2">
+         <property name="leftMargin">
+          <number>0</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
+         <item row="0" column="0">
+          <widget class="QLabel" name="MaterialSwitcherExportStyleLabel">
+           <property name="text">
+            <string>Material Switcher</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="MaterialSwitcherExportStyleComboBox">
+           <item>
+            <property name="text">
+             <string>Export as variant sets</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Export active material only</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Default Material Paths</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout" columnstretch="3,5,1">
+      <item row="4" column="1">
+       <widget class="QLineEdit" name="materialLayerPath">
+        <property name="toolTip">
+         <string>Enter a relative or absolute file path to set where your materials get exported to. A relative path will be set in relation to your root USD layer. </string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="layerPathLabel">
+        <property name="text">
+         <string>File Path</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Scope</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="2">
+       <widget class="QToolButton" name="materialLayerPicker">
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1" colspan="2">
+       <widget class="QLineEdit" name="materialPrimPath">
+        <property name="toolTip">
+         <string>Enter the scope name under which materials get placed.</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1" colspan="2">
+       <widget class="QCheckBox" name="separateMaterialLayer">
+        <property name="toolTip">
+         <string>Enable to have materials export to a separate USD file at the File Path specified. When disabled, materials get written into your root layer.</string>
+        </property>
+        <property name="text">
+         <string>Create Separate Material File</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/USDExport/resource.h b/src/USDExport/resource.h
new file mode 100644
index 0000000..b92912b
--- /dev/null
+++ b/src/USDExport/resource.h
@@ -0,0 +1,40 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by resource.rc
+//
+#define IDS_LIBDESCRIPTION          1
+#define IDS_CATEGORY                2
+#define IDS_USDEXPORTER_CLASS_NAME  3
+#define IDS_SHORTDESCRIPTION        4
+#define IDS_LONGDESCRIPTION         5
+#define IDS_AUTHOR                  6
+#define IDS_COPYRIGHT               7
+#define IDS_USDZ_LONGDESCRIPTION    8
+#define IDS_USDZ_SHORTDESCRIPTION   10
+#define IDS_USDZEXPORTER_CLASS_NAME 101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE 102
+#define _APS_NEXT_COMMAND_VALUE  40001
+#define _APS_NEXT_CONTROL_VALUE  1001
+#define _APS_NEXT_SYMED_VALUE    101
+#endif
+#endif
diff --git a/src/USDExport/resource.rc b/src/USDExport/resource.rc
new file mode 100644
index 0000000..1db00d1
--- /dev/null
+++ b/src/USDExport/resource.rc
@@ -0,0 +1,93 @@
+// Microsoft Visual C++ generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// String Table
+//
+
+STRINGTABLE
+BEGIN
+    IDS_LIBDESCRIPTION      "USD Exporter (Autodesk)"
+    IDS_CATEGORY            "USD"
+    IDS_USDEXPORTER_CLASS_NAME "USDExporter"
+    IDS_SHORTDESCRIPTION    "USD"
+    IDS_LONGDESCRIPTION     "Pixar's Universal Scene Description"
+    IDS_AUTHOR              "Autodesk Inc."
+    IDS_COPYRIGHT           "Copyright 2019 Autodesk, Inc."
+    IDS_USDZ_LONGDESCRIPTION "Pixar's Universal Scene Description Zip Package"
+    IDS_USDZ_SHORTDESCRIPTION "USDZ Package"
+END
+
+STRINGTABLE
+BEGIN
+    IDS_USDZEXPORTER_CLASS_NAME "USDZExporter"
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (Canada) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENC)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_CAN
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE 
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (Canada) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+#include "VersionOverrides.h"
+#include "../USDComponentVersion.r"
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
\ No newline at end of file
diff --git a/src/USDExport/usdexport_banned.h b/src/USDExport/usdexport_banned.h
new file mode 100644
index 0000000..8745389
--- /dev/null
+++ b/src/USDExport/usdexport_banned.h
@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usd_banned.h>
+
+// After to avoid some errors from naming conflicts.
+#pragma warning(push)
+#pragma warning(disable : 4244)
+#include <QtGui/qmatrix4x4.h>
+#pragma warning(pop)
\ No newline at end of file
diff --git a/src/USDImport/DLLEntry.h b/src/USDImport/DLLEntry.h
new file mode 100644
index 0000000..a04c0ba
--- /dev/null
+++ b/src/USDImport/DLLEntry.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <strclass.h>
+
+MSTR             GetMString(int id);
+extern HINSTANCE hInstance;
diff --git a/src/USDImport/DllEntry.cpp b/src/USDImport/DllEntry.cpp
new file mode 100644
index 0000000..dbfe000
--- /dev/null
+++ b/src/USDImport/DllEntry.cpp
@@ -0,0 +1,95 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+#include "resource.h"
+
+#include <MaxUsd/USDCore.h>
+
+#include <iparamb2.h>
+#include <iparamm2.h>
+#include <istdplug.h>
+
+extern ClassDesc2* GetUSDImporterDesc();
+
+std::array<ClassDesc2*, 1> classDescs = { GetUSDImporterDesc() };
+
+HINSTANCE hInstance = nullptr;
+int       controlsInit = FALSE;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        MaxSDK::Util::UseLanguagePackLocale();
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+        // DO NOT do any initialization here. Use LibInitialize() instead.
+    }
+    return (TRUE);
+}
+
+// This function returns a string that describes the DLL
+__declspec(dllexport) const MCHAR* LibDescription()
+{
+    static MSTR str = GetMString(IDS_LIBDESCRIPTION);
+    return str;
+}
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) int LibNumberClasses() { return int(classDescs.size()); }
+
+// This function returns the number of plug-in classes this DLL
+__declspec(dllexport) ClassDesc* LibClassDesc(int i)
+{
+    if (i < classDescs.size()) {
+        return classDescs[i];
+    }
+
+    return nullptr;
+}
+
+// This function returns a pre-defined constant indicating the version of
+// the system under which it was compiled.  It is used to allow the system
+// to catch obsolete DLLs.
+__declspec(dllexport) ULONG LibVersion() { return VERSION_3DSMAX; }
+
+// This function is called once, right after your plugin has been loaded by 3ds Max.
+// Perform one-time plugin initialization in this method.
+// Return TRUE if you deem your plugin successfully loaded, or FALSE otherwise. If
+// the function returns FALSE, the system will NOT load the plugin, it will then call FreeLibrary
+// on your DLL, and send you a message.
+__declspec(dllexport) int LibInitialize(void) { return TRUE; }
+
+// This function is called once, just before the plugin is unloaded.
+// Perform one-time plugin un-initialization in this method."
+// The system doesn't pay attention to a return value.
+__declspec(dllexport) int LibShutdown(void) { return TRUE; }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+MSTR GetMString(int id)
+{
+    LPWSTR    pString = nullptr;
+    const int res = LoadString(hInstance, id, reinterpret_cast<LPWSTR>(&pString), 0);
+    return MSTR::FromUTF16(pString, res);
+}
diff --git a/src/USDImport/USDImport.cpp b/src/USDImport/USDImport.cpp
new file mode 100644
index 0000000..204c3fb
--- /dev/null
+++ b/src/USDImport/USDImport.cpp
@@ -0,0 +1,190 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "USDImport.h"
+
+#include "DLLEntry.h"
+#include "Views/USDImportDialog.h"
+
+#include <MaxUsd/USDCore.h>
+#include <MaxUsd/USDSceneController.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/UiUtils.h>
+
+#include <maxscript/maxscript.h>
+#include <maxscript/util/listener.h>
+
+#include <maxapi.h>
+
+#define ScriptPrint (the_listener->edit_stream->printf)
+
+MaxUsd::IUSDImportOptions USDImporter::uiImportOptions;
+bool                      USDImporter::optionDefaultsApplied { false };
+
+int USDImporter::ExtCount() { return 3; }
+
+const MCHAR* USDImporter::Ext(int index)
+{
+    switch (index) {
+    case 0: return _M("usd");
+    case 1: return _M("usdc");
+    case 2: return _M("usda");
+    default: return nullptr;
+    }
+}
+
+const MCHAR* USDImporter::LongDesc()
+{
+    static MSTR str = GetMString(IDS_LONGDESCRIPTION);
+    return str;
+}
+
+const MCHAR* USDImporter::ShortDesc()
+{
+    static MSTR str = GetMString(IDS_SHORTDESCRIPTION);
+    return str;
+}
+
+const MCHAR* USDImporter::AuthorName()
+{
+    static MSTR str = GetMString(IDS_AUTHOR);
+    return str;
+}
+
+const MCHAR* USDImporter::CopyrightMessage()
+{
+    static MSTR str = GetMString(IDS_COPYRIGHT);
+    return str;
+}
+
+unsigned int USDImporter::Version() { return 100; }
+
+void USDImporter::ShowAbout(HWND /*hWnd*/)
+{
+    // Optional: nothing to do.
+}
+
+const MCHAR* USDImporter::OtherMessage1() { return _M(""); }
+
+const MCHAR* USDImporter::OtherMessage2() { return _M(""); }
+
+int USDImporter::DoImport(
+    const MCHAR* filePath,
+    ImpInterface* /*ei*/,
+    Interface* /*ip*/,
+    BOOL suppressPrompts)
+{
+    // make sure to clear cancel flag before/after export
+    const auto resetCancelFlag = MaxUsd::MakeScopeGuard(
+        []() { GetCOREInterface()->SetCancel(false); },
+        []() { GetCOREInterface()->SetCancel(false); });
+    // Using the UI (global) options
+    if (!optionDefaultsApplied) {
+        uiImportOptions.SetOptions(MaxUsd::OptionUtils::LoadImportOptions());
+        optionDefaultsApplied = true;
+    }
+    return ImportFile(filePath, uiImportOptions, suppressPrompts);
+}
+
+ClassDesc2* GetUSDImporterDesc()
+{
+    static USDImporterClassDesc USDImporterDesc;
+    return &USDImporterDesc;
+}
+
+MaxUsd::IUSDImportOptions& USDImporter::GetUIOptions() { return uiImportOptions; }
+
+void USDImporter::SetUIOptions(const MaxUsd::MaxSceneBuilderOptions& newOptions)
+{
+    if (!optionDefaultsApplied) {
+        optionDefaultsApplied = true;
+    }
+    uiImportOptions.SetOptions(newOptions);
+}
+
+int USDImporter::ImportFile(
+    const MCHAR*               filePath,
+    MaxUsd::IUSDImportOptions& importOptions,
+    bool                       suppressPrompts)
+{
+    if (filePath == nullptr) {
+        return IMPEXP_FAIL;
+    }
+
+    auto reportExportConfigError = [](const std::wstring& message) {
+        // Report to both in the maxscript listener and the max log.
+        ScriptPrint(message.c_str());
+        GetCOREInterface()->Log()->LogEntry(
+            SYSLOG_ERROR, NO_DIALOG, L"USDImporter Configuration Error", message.c_str());
+    };
+    auto importFile = USDCore::sanitizedFilename(filePath);
+    if (MaxUsd::HasUnicodeCharacter(importFile.string())) {
+        const MCHAR* errorMsg = L"USD does not support unicode characters in filepath, please "
+                                L"remove these characters.";
+        if (suppressPrompts) {
+            reportExportConfigError(errorMsg);
+        } else {
+            MaxSDK::MaxMessageBox(
+                GetCOREInterface()->GetMAXHWnd(), errorMsg, _T("Unicode Error"), MB_OK);
+        }
+
+        return IMPEXP_FAIL;
+    }
+    // Avoid displaying blocking UI Dialogs when 3ds Max is running in Quiet Mode:
+    if (suppressPrompts || GetCOREInterface()->GetQuietMode()) {
+        if (!ValidateImportOptions(importOptions)) {
+            return IMPEXP_FAIL;
+        }
+
+        int result = MaxUsd::GetUSDSceneController()->Import(
+            MaxUsd::UsdStageSource { filePath }, importOptions, filePath);
+
+        return result;
+    }
+
+    // pre-build material conversion list
+    // possible conflicting Python plugin loader when called from the Qt dialog
+    // pxr::MaxUsdShadingModeRegistry::ListMaterialConversions();
+    // For now, when importing through UI, we do not populate using the global import options
+    // accessible through maxscript.
+    std::unique_ptr<IUSDImportView> usdImportDialog
+        = std::make_unique<USDImportDialog>(filePath, importOptions);
+    if (usdImportDialog->Execute()) {
+        const auto optionFromUI = usdImportDialog->GetBuildOptions();
+        SetUIOptions(optionFromUI);
+        const int result = MaxUsd::GetUSDSceneController()->Import(
+            MaxUsd::UsdStageSource { filePath }, optionFromUI, filePath);
+        MaxUsd::OptionUtils::SaveImportOptions(uiImportOptions);
+        return result;
+    }
+    return IMPEXP_CANCEL;
+}
+
+bool USDImporter::ValidateImportOptions(const MaxUsd::IUSDImportOptions& options)
+{
+    const auto endTime = options.GetEndTimeCode();
+    const auto startTime = options.GetStartTimeCode();
+
+    if (endTime < startTime) {
+        const WStr message = L"UsdImporter Error : The end time code can't be smaller than the "
+                             L"start time code! \n";
+        ScriptPrint(message);
+        GetCOREInterface()->Log()->LogEntry(
+            SYSLOG_ERROR, NO_DIALOG, L"UsdImporter Configuration Error", message.data());
+        return false;
+    }
+    return true;
+}
diff --git a/src/USDImport/USDImport.def b/src/USDImport/USDImport.def
new file mode 100644
index 0000000..39a0996
--- /dev/null
+++ b/src/USDImport/USDImport.def
@@ -0,0 +1,10 @@
+LIBRARY USDImport.dli
+EXPORTS
+   LibDescription       @1       PRIVATE
+   LibNumberClasses     @2       PRIVATE
+   LibClassDesc         @3       PRIVATE
+   LibVersion           @4       PRIVATE
+   LibInitialize        @6       PRIVATE
+   LibShutdown          @7       PRIVATE
+SECTIONS
+   .data READ WRITE
diff --git a/src/USDImport/USDImport.h b/src/USDImport/USDImport.h
new file mode 100644
index 0000000..41cddfb
--- /dev/null
+++ b/src/USDImport/USDImport.h
@@ -0,0 +1,237 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "DLLEntry.h"
+#include "resource.h"
+
+#include <MaxUsd/Interfaces/IUSDImportOptions.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <impexp.h>
+#include <iparamb2.h>
+
+/**
+ * \brief Class_ID of the USD Importer plugin.
+ */
+#define USDImporter_CLASS_ID Class_ID(0x9e90207a, 0x4cacb4fe)
+
+/**
+ * \brief USD Importer.
+ */
+class USDImporter : public SceneImport
+{
+public:
+    /**
+     * \brief Return the number of extensions supported.
+     * \return The number of extensions supported.
+     */
+    int ExtCount() override;
+
+    /**
+     * \brief Return the representation of the supported extension at the given index (without leading dot).
+     * \param index Index of the supported extension for which to return the representation.
+     * \return Return the representation of the supported extension at the given index.
+     */
+    const MCHAR* Ext(int index) override;
+
+    /**
+     * \brief Return a long description for the plugin.
+     * \return A long description for the plugin.
+     */
+    const MCHAR* LongDesc() override;
+
+    /**
+     * \brief Return a short description for the plugin.
+     * \return A short description for the plugin.
+     */
+    const MCHAR* ShortDesc() override;
+
+    /**
+     * \brief Return the name of the author of the plugin.
+     * \return The name of the author of the plugin.
+     */
+    const MCHAR* AuthorName() override;
+
+    /**
+     * \brief Return a copyright message for the plugin.
+     * \return A copyright message for the plugin.
+     */
+    const MCHAR* CopyrightMessage() override;
+
+    /**
+     * \brief Return the first message to be displayed.
+     * \return The first message to be displayed.
+     */
+    const MCHAR* OtherMessage1() override;
+
+    /**
+     * \brief Return the second message to be displayed.
+     * \return The second message to be displayed.
+     */
+    const MCHAR* OtherMessage2() override;
+
+    /**
+     * \brief Return the version number of the plugin.
+     * \remarks The format is the version number * 100 (i.e. "v3.01" is labeled as "301").
+     * \return The version number of the plugin.
+     */
+    unsigned int Version() override;
+
+    /**
+     * \brief Display an "About..." box for the plugin.
+     * \param hWnd Parent window handle of the dialog.
+     */
+    void ShowAbout(HWND hWnd) override;
+
+    /**
+     * \brief Perform the file import.
+     * \param filePath The filepath of the imported file.
+     * \param ei Pointer which may be used to call methods to enumerate the scene.
+     * \param i Interface pointer to be used to call 3ds Max methods.
+     * \param suppressPrompts Flag indicating if UI input prompts should be suppressed.
+     * \return A flag indicating the result of the import (either IMPEXP_FAIL, IMPEXP_SUCCESS, or IMPEXP_CANCEL).
+     */
+    int
+    DoImport(const MCHAR* filePath, ImpInterface* ei, Interface* i, BOOL suppressPrompts = FALSE)
+        override;
+
+    /**
+     * \brief Returns the UI options for the USD importer.
+     * These are available through MaxScript.
+     * \return The import options.
+     */
+    static MaxUsd::IUSDImportOptions& GetUIOptions();
+
+    /**
+     * \brief Sets the UI options for the USD importer.
+     * \param newOptions The new import options.
+     */
+    static void SetUIOptions(const MaxUsd::MaxSceneBuilderOptions& newOptions);
+
+    /**
+     * \brief Perform the file import.
+     * \param filePath The filePath of the imported file.
+     * \param suppressPrompts Flag indicating if UI input prompts should be suppressed.
+     * \return A flag indicating the result of the import (either IMPEXP_FAIL, IMPEXP_SUCCESS, or IMPEXP_CANCEL).
+     */
+    static int ImportFile(
+        const MCHAR*               filePath,
+        MaxUsd::IUSDImportOptions& importOptions,
+        bool                       suppressPrompts);
+
+    /**
+     * \brief Validates that import options are correct. The function will log any issues with the options
+     * in the listener as well as the Max log.
+     * \param options The options to validate.
+     * \return True if options are valid, false otherwise.
+     */
+    static bool ValidateImportOptions(const MaxUsd::IUSDImportOptions& options);
+
+private:
+    // Global options for import.
+    static MaxUsd::IUSDImportOptions uiImportOptions;
+    static bool                      optionDefaultsApplied;
+};
+
+/**
+ * \brief 3ds Max class description for the USD Importer plugin.
+ */
+class USDImporterClassDesc : public ClassDesc2
+{
+public:
+    /**
+     * \brief Indicate if the plugin should be displayed in the list of plugins the User can choose from.
+     * \return "TRUE" if the plugin can be picked and assigned by the user, "FALSE" otherwise.
+     */
+    int IsPublic() override { return TRUE; }
+
+    /**
+     * \brief Create an instance of the plugin.
+     * \param loading Flag indicating if the class being created is going to be loaded from a disk file.
+     * \return An instance of the plugin.
+     */
+    void* Create(BOOL /*loading = FALSE*/) override { return new USDImporter(); }
+
+    /**
+     * \brief Return the name of the plugin as it should appear in the 3ds Max UI.
+     * \return The name of the plugin as it should appear in the 3ds Max UI.
+     */
+    const MCHAR* ClassName() override
+    {
+        static MSTR str = GetMString(IDS_USDIMPORTER_CLASS_NAME);
+        return str;
+    }
+
+    /**
+     * \brief Return the non-localized name of the class
+     * \return The non-localized name of the plugin.
+     */
+    const MCHAR* NonLocalizedClassName() override
+    {
+        // NOTE: To maintain scripting compatibility with older max version (<2022),
+        // this value should be set to the en-US equivalent of ClassName()
+        return _T("USDImporter");
+    }
+
+    /**
+     * \brief Return a system-defined constant describing the class from which the plugin is derived.
+     * \return The ID of the plugin's parent type.
+     */
+    SClass_ID SuperClassID() override { return SCENE_IMPORT_CLASS_ID; }
+
+    /**
+     * \brief Return a unique ID for the plugin.
+     * \return A unique ID for the plugin.
+     */
+    Class_ID ClassID() override { return USDImporter_CLASS_ID; }
+
+    /**
+     * \brief Returns a localized string describing the category of the plugin.
+     * \return A localized string describing the category of the plugin.
+     */
+    const MCHAR* Category() override
+    {
+        static MSTR str = GetMString(IDS_CATEGORY);
+        return str;
+    }
+
+    /**
+     * \brief Return the internal name of the plugin, which is used (among other things) to expose its features to
+     * MaxScript.
+     * \return The internal name of the plugin.
+     */
+    const MCHAR* InternalName() override { return _M("USDImporter"); }
+
+    /**
+     * \brief Only use the ClassDesc2's internal name when exposing names to MaxScript.
+     * \return "true" if only the internal name should be used when exposing the ClassDesc2's feature to MaxScript,
+     * "false" otherwise.
+     */
+    bool UseOnlyInternalNameForMAXScriptExposure() override { return true; }
+
+    /**
+     * \brief Return the owning module's handle.
+     * \return The owning module's handle.
+     */
+    HINSTANCE HInstance() override { return hInstance; }
+};
+
+/**
+ * \brief Return a reference to the ClassDesc2 definition of the USDImporter.
+ * \return A reference to the ClassDesc2 definition of the USDImporter.
+ */
+ClassDesc2* GetUSDImporterDesc();
diff --git a/src/USDImport/USDImport.vcxproj b/src/USDImport/USDImport.vcxproj
new file mode 100644
index 0000000..3d4b4a7
--- /dev/null
+++ b/src/USDImport/USDImport.vcxproj
@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>USDImport</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest>true</EmbedManifest>
+    <TargetName>USDImport</TargetName>
+    <TargetExt>.dli</TargetExt>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>_USRDLL;USDCORE_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(MaxSdkInc);$(QtInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <ForcedIncludeFiles>$(ProjectDir)/usdimport_banned.h</ForcedIncludeFiles>
+      <DisableSpecificWarnings>4251;4275;26945;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(QtLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>maxutil.lib;FragmentGraph.lib;GraphicsDriver.lib;GraphicsUtility.lib;ViewSystem.lib;MaxGraphicsObjects.lib;core.lib;geom.lib;gfx.lib;mesh.lib;mnmath.lib;Poly.lib;maxscrpt.lib;paramblk2.lib;MaxQtBridge.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ModuleDefinitionFile>$(TargetName).def</ModuleDefinitionFile>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="USDImport.cpp" />
+    <ClCompile Include="USDImportInterface.cpp" />
+    <ClCompile Include="Views\USDImportDialog.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="$(UI_DIR)\ui_USDImportDialog.h" />
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="USDImport.h" />
+    <ClInclude Include="usdimport_banned.h" />
+    <ClInclude Include="VersionOverrides.h" />
+    <ClInclude Include="Views\IUSDImportView.h" />
+    <ClInclude Include="Views\USDImportDialog.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="USDImport.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\USDImportDialog.ui" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\maxUsd\maxUsd.vcxproj">
+      <Project>{d02163f8-70ee-4676-b3ea-7c89e71b44d4}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/USDImport/USDImport.vcxproj.filters b/src/USDImport/USDImport.vcxproj.filters
new file mode 100644
index 0000000..ce3c49f
--- /dev/null
+++ b/src/USDImport/USDImport.vcxproj.filters
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{fbad0f2d-faaa-4b0b-865c-583fac8ddcb1}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;rc;def;r;odl;idl;hpj;bat</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{92f20462-242f-4a0c-883e-b3c33819b84b}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{ad6e765e-4300-41dc-b185-05b019286785}</UniqueIdentifier>
+      <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{99349809-55BA-4b9d-BF79-8FDBB0286EB3}</UniqueIdentifier>
+      <Extensions>ui</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Generated Files">
+      <UniqueIdentifier>{71ED8ED8-ACB9-4CE9-BBE1-E00B30144E11}</UniqueIdentifier>
+      <Extensions>moc;h;cpp</Extensions>
+      <ParseFiles>true</ParseFiles>
+    </Filter>
+    <Filter Include="Header Files\Views">
+      <UniqueIdentifier>{72ec3609-7a83-49f9-8821-b4f19f3b41d2}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\Views">
+      <UniqueIdentifier>{06322571-d2a9-4840-b6cb-4482e561f539}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="USDImport.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Views\USDImportDialog.cpp">
+      <Filter>Source Files\Views</Filter>
+    </ClCompile>
+    <ClCompile Include="USDImportInterface.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="resource.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="usdimport_banned.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\USDImportDialog.h">
+      <Filter>Header Files\Views</Filter>
+    </ClInclude>
+    <ClInclude Include="$(UI_DIR)\ui_USDImportDialog.h">
+      <Filter>Generated Files</Filter>
+    </ClInclude>
+    <ClInclude Include="USDImport.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Views\IUSDImportView.h">
+      <Filter>Header Files\Views</Filter>
+    </ClInclude>
+    <ClInclude Include="VersionOverrides.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="USDImport.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <QtUic Include="Views\USDImportDialog.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/USDImport/USDImportInterface.cpp b/src/USDImport/USDImportInterface.cpp
new file mode 100644
index 0000000..7ffa793
--- /dev/null
+++ b/src/USDImport/USDImportInterface.cpp
@@ -0,0 +1,483 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include <maxscript/maxwrapper/mxsmaterial.h>
+#include <maxscript/foundation/DataPair.h>
+#include <maxscript/util/listener.h>
+#include <maxscript/foundation/3dmath.h>
+#include <maxscript/maxscript.h>
+
+#include <MaxUsd/Interfaces/IUSDImportOptions.h>
+#include <MaxUsd/USDSceneController.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/CurveConversion/CurveConverter.h>
+
+#include <pxr/usd/usdGeom/basisCurves.h>
+
+#include "USDImport.h"
+
+#define ScriptPrint (the_listener->edit_stream->_tprintf)
+
+class USDImportInterface : public FPStaticInterface
+{
+public:
+	DECLARE_DESCRIPTOR(USDImportInterface)
+
+	void SetUIOptions(FPInterface* options)
+	{
+		if (options && options->GetID() == IUSDImportOptions_INTERFACE_ID)
+		{
+			MaxUsd::IUSDImportOptions* importOptions = dynamic_cast<MaxUsd::IUSDImportOptions*>(options);
+			if (!importOptions)
+			{
+				throw MAXException(MSTR(L"Invalid Import Options object."));
+			}
+			USDImporter::SetUIOptions((*importOptions));
+		}
+	}
+
+	FPInterface* GetUIOptions()
+	{
+		return &USDImporter::GetUIOptions();
+	}
+
+	static int ImportFile(const MCHAR* filePath, FPInterface* usdImportOptions)
+	{
+		if (usdImportOptions)
+		{
+			MaxUsd::IUSDImportOptions* importOptions = dynamic_cast<MaxUsd::IUSDImportOptions*>(usdImportOptions);
+			if (!importOptions)
+			{
+				throw MAXException(MSTR(L"Invalid Import Options object."));
+			}
+			return USDImporter::ImportFile(filePath, (*importOptions), true);
+		}
+		MaxUsd::IUSDImportOptions importOptions;
+		importOptions.SetDefaults();
+		return USDImporter::ImportFile(filePath, importOptions, true);
+	}
+
+
+	static int ImportFromCache(INT64 cacheId, FPInterface* usdImportOptions)
+	{
+		const MaxUsd::UsdStageSource cachedStage{ pxr::UsdStageCache::Id::FromLongInt(static_cast<long>(cacheId)) };
+		if (usdImportOptions)
+		{
+			MaxUsd::IUSDImportOptions* importOptions = dynamic_cast<MaxUsd::IUSDImportOptions*>(usdImportOptions);
+			if (!importOptions)
+			{
+				throw MAXException(MSTR(L"Invalid Import Options object."));
+			}
+			if (!USDImporter::ValidateImportOptions(*importOptions))
+			{
+				return IMPEXP_FAIL;
+			}
+			return MaxUsd::GetUSDSceneController()->Import(cachedStage, *importOptions);
+		}
+		MaxUsd::MaxSceneBuilderOptions defaultOptions;
+		defaultOptions.SetDefaults();
+		return MaxUsd::GetUSDSceneController()->Import(cachedStage, defaultOptions);
+	}
+
+	static Value* ConvertUsdMesh(INT64 stageCacheId, const wchar_t* path, FPInterface* usdImportOptions)
+	{
+		MaxUsd::IUSDImportOptions importOptions;
+		importOptions.SetDefaults();
+		if (usdImportOptions)
+		{
+			auto specifiedImportOptions = dynamic_cast<MaxUsd::IUSDImportOptions*>(usdImportOptions);
+			if (!specifiedImportOptions)
+			{
+				throw RuntimeError(MSTR(L"Invalid Import Options object."));
+			}
+			importOptions = *specifiedImportOptions;
+		}
+
+		const MaxUsd::UsdStageSource cachedStage{ pxr::UsdStageCache::Id::FromLongInt(static_cast<long>(stageCacheId)) };
+		const auto stage = cachedStage.LoadStage(importOptions);
+		if (!stage)
+		{
+			throw RuntimeError(MSTR(L"Unable to fetch the stage from the global cache using the given stage cache id."));
+		}
+
+		const auto prim = stage->GetPrimAtPath(pxr::SdfPath{ MaxUsd::MaxStringToUsdString(path) });
+		if (!prim.IsValid() || !prim.IsA<pxr::UsdGeomMesh>())
+		{
+			throw RuntimeError(MSTR(L"The given path does not point to a USD Mesh prim."));
+		}
+
+		MNMesh mesh;
+		MaxUsd::MeshConverter converter;
+
+		const auto timeMode = static_cast<MaxUsd::MaxSceneBuilderOptions::ImportTimeMode>(importOptions.GetTimeMode());
+		const auto timeConfig = importOptions.GetResolvedTimeConfig(stage);
+		auto timeCodeValue = pxr::UsdTimeCode::Default();
+		bool validOptions = USDImporter::ValidateImportOptions(importOptions);
+		MultiMtl* materialBind = nullptr;
+		std::map<int, std::string> channelNames;
+
+		if (!validOptions)
+		{
+			throw RuntimeError(MSTR(L"The import configuration is not valid. Set a valid mode and/or time range."));
+		}
+
+		switch (timeMode)
+		{
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime: {
+			timeCodeValue = stage->GetStartTimeCode();
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime: {
+			timeCodeValue = stage->GetEndTimeCode();
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::CustomRange: {
+			timeCodeValue = timeConfig.GetStartTimeCode();
+			if (timeCodeValue != timeConfig.GetEndTimeCode())
+			{
+				MaxUsd::Log::Warn("#customRange TimeMode not supported for USDImporter.ConvertUsdMesh, the "
+								  "conversion will be performed at the configured start time {}.",
+						std::to_string(timeCodeValue.GetValue()));
+			}
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::AllRange: {
+			timeCodeValue = stage->GetStartTimeCode();
+			MaxUsd::Log::Warn("#allrange TimeMode not supported for USDImporter.ConvertUsdMesh, the "
+							  "conversion will be performed at the stage's start time code {}.",
+					std::to_string(timeCodeValue.GetValue()));
+			break;
+		}
+		default:
+			DbgAssert("unsupported TimeCode for USDImporter.ConvertUsdMesh");
+		}
+
+		converter.ConvertToMNMesh(pxr::UsdGeomMesh(prim), mesh, importOptions.GetPrimvarMappingOptions(), channelNames,
+				&materialBind, timeCodeValue);
+
+		Mesh* triMesh = new Mesh();
+		mesh.OutToTri(*triMesh);
+
+		three_typed_value_locals(DataPair* dataPair, MeshValue* mesh, Value* materialBind);
+		vl.mesh = new MeshValue{ triMesh };
+		vl.materialBind = MAXMaterial::intern( materialBind );
+		vl.dataPair = new DataPair(vl.mesh, vl.materialBind, n_mesh, Name::intern(_T("usdGeomSubsetsBindMaterial")));
+
+		return vl.dataPair;
+	}
+
+	static Value* ConvertUsdBasisCurve(
+			INT64 stageCacheId, const wchar_t* path, bool asBezierShape, FPInterface* usdImportOptions)
+	{
+		MaxUsd::IUSDImportOptions importOptions;
+		importOptions.SetDefaults();
+		if (usdImportOptions)
+		{
+			auto specifiedImportOptions = dynamic_cast<MaxUsd::IUSDImportOptions*>(usdImportOptions);
+			if (!specifiedImportOptions)
+			{
+				throw RuntimeError(MSTR(L"Invalid Import Options object."));
+			}
+			importOptions = *specifiedImportOptions;
+		}
+
+		const MaxUsd::UsdStageSource cachedStage{ pxr::UsdStageCache::Id::FromLongInt(
+				static_cast<long>(stageCacheId)) };
+		const auto stage = cachedStage.LoadStage(importOptions);
+		if (!stage)
+		{
+			throw RuntimeError(
+					MSTR(L"Unable to fetch the stage from the global cache using the given stage cache id."));
+		}
+
+		const auto prim = stage->GetPrimAtPath(pxr::SdfPath{ MaxUsd::MaxStringToUsdString(path) });
+		if (!prim.IsValid() || !prim.IsA<pxr::UsdGeomBasisCurves>())
+		{
+			throw RuntimeError(MSTR(L"The given path does not point to a USD BasisCurve prim."));
+		}
+
+		const auto timeMode = static_cast<MaxUsd::MaxSceneBuilderOptions::ImportTimeMode>(importOptions.GetTimeMode());
+		const auto timeConfig = importOptions.GetResolvedTimeConfig(stage);
+		auto timeCodeValue = pxr::UsdTimeCode::Default();
+		bool validOptions = USDImporter::ValidateImportOptions(importOptions);
+		MultiMtl* materialBind = nullptr;
+		std::map<int, std::string> channelNames;
+
+		if (!validOptions)
+		{
+			throw RuntimeError(MSTR(L"The import configuration is not valid. Set a valid mode and/or time range."));
+		}
+
+		switch (timeMode)
+		{
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime: {
+			timeCodeValue = stage->GetStartTimeCode();
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime: {
+			timeCodeValue = stage->GetEndTimeCode();
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::CustomRange: {
+			timeCodeValue = timeConfig.GetStartTimeCode();
+			if (timeCodeValue != timeConfig.GetEndTimeCode())
+			{
+				MaxUsd::Log::Warn("#customRange TimeMode not supported for USDImporter.ConvertUsdBasisCurve, the "
+								  "conversion will be performed at the configured start time {}.",
+						std::to_string(timeCodeValue.GetValue()));
+			}
+			break;
+		}
+		case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::AllRange: {
+			timeCodeValue = stage->GetStartTimeCode();
+			MaxUsd::Log::Warn("#allrange TimeMode not supported for USDImporter.ConvertUsdBasisCurve, the "
+							  "conversion will be performed at the stage's start time code {}.",
+					std::to_string(timeCodeValue.GetValue()));
+			break;
+		}
+		default:
+			DbgAssert("unsupported TimeCode for USDImporter.ConvertUsdBasisCurve");
+		}
+
+		const pxr::UsdGeomBasisCurves basisCurvesPrim(prim);
+		TypedSingleRefMaker<SplineShape> shapeObj(
+				(SplineShape*)GetCOREInterface()->CreateInstance(SHAPE_CLASS_ID, splineShapeClassID));
+
+		MaxUsd::CurveConverter::ConvertToSplineShape(basisCurvesPrim, *shapeObj, timeCodeValue);
+
+		one_typed_value_local(Value * res);
+		if (asBezierShape)
+		{
+			BezierShape* bshape = new BezierShape{ shapeObj->GetShape() };
+			vl.res = new BezierShapeValue(bshape, 1);
+		}
+		else {
+			INode* shapeNode = GetCOREInterface()->CreateObjectNode(shapeObj);
+			vl.res = MAXNode::intern(shapeNode);
+		}
+		return_value(vl.res);
+	}
+
+	FPInterface* CreateOptions()
+	{
+		auto options = new MaxUsd::IUSDImportOptions;
+		options->SetDefaults();
+		return options;
+	}
+
+	void Log(int messageType, const std::wstring& message)
+	{
+		MaxUsd::Log::Message(MaxUsd::Log::Level(messageType), message);
+	}
+
+	FPInterface* CreateOptionsFromJsonString(const MCHAR* jsonString)
+	{
+		if (jsonString)
+		{
+			MaxUsd::MaxSceneBuilderOptions options(
+					MaxUsd::OptionUtils::DeserializeOptionsFromJson(QString::fromWCharArray(jsonString).toUtf8()));
+			return new MaxUsd::IUSDImportOptions(options);
+		}
+		throw MAXException(L"Invalid JSON string");
+	}
+
+	enum
+	{
+		eid_LogLevel
+	};
+
+	enum
+	{
+		fid_SetUIOptions,
+		fid_GetUIOptions,
+		fid_ImportFile,
+		fid_ImportFromCache,
+		fid_CreateOptions,
+		fid_ConvertUsdMesh,
+		fid_ConvertUsdBasisCurve,
+		fid_Log,
+		fid_SetMaterialParamByName,
+		fid_SetTexmapParamByName,
+		fid_CreateOptionsFromJsonString
+	};
+
+	/**
+	 * \brief Sets a paramblock parameter by name. Setting PB params from MXS is slow, using the C++ implementation
+	 * is useful to bypass the slowness. The function will look at all paramblocks until it finds a matching param,
+	 * it is then set using to the passed Value.
+	 * \param mtlBase The base material object, for which to set a param.
+	 * \param name The name of the param.
+	 * \param value The value to set.
+	 */
+	static void SetMtlBaseParamByName(MtlBase* mtlBase, const wchar_t* name, Value* value)
+	{
+		if (!mtlBase)
+		{
+			ScriptPrint(_T("ERROR : Undefined material passed to SetMtlBaseParamByName().\n"));
+			return;
+		}
+
+		const bool isUndefined = value == &undefined;
+
+		for (int i = 0; i < mtlBase->NumParamBlocks(); ++i)
+		{
+			const auto pb = mtlBase->GetParamBlock(i);
+			const auto idx = pb->GetDesc()->NameToIndex(name);
+
+			if (idx == -1)
+			{
+				continue;
+			}
+
+			// We found the paramblock for this parameter
+			const auto paramDef = pb->GetDesc()->GetParamDefByIndex(idx);
+			const auto paramId = paramDef->ID;
+
+			switch (paramDef->type)
+			{
+			case TYPE_FLOAT:
+				pb->SetValue(paramId, 0, value->to_float());
+				break;
+			case TYPE_INT:
+				pb->SetValue(paramId, 0, value->to_int());
+				break;
+			case TYPE_BOOL:
+				pb->SetValue(paramId, 0, value->to_bool());
+				break;
+			case TYPE_RGBA:
+			case TYPE_RGBA_BV:
+				pb->SetValue(paramId, 0, value->to_point3());
+				break;
+			case TYPE_STRING:
+			case TYPE_FILENAME:
+				pb->SetValue(paramId, 0, isUndefined ? nullptr : value->to_string());
+				break;
+			case TYPE_INODE:
+				pb->SetValue(paramId, 0, isUndefined ? nullptr : value->to_node());
+				break;
+			case TYPE_REFTARG:
+				pb->SetValue(paramId, 0, isUndefined ? nullptr : value->to_reftarg());
+				break;
+			case TYPE_TEXMAP:
+				pb->SetValue(paramId, 0, isUndefined ? nullptr : value->to_texmap());
+				break;
+			case TYPE_BITMAP: {
+				if (isUndefined)
+				{
+					pb->SetValue(paramId, 0, static_cast<PBBitmap*>(nullptr));
+				}
+				else
+				{
+					FPValue val;
+					value->to_fpvalue(val);
+					pb->SetValue(paramId, 0, val.bm);
+				}
+				break;
+			}
+			case TYPE_MTL:
+				pb->SetValue(paramId, 0, isUndefined ? nullptr : value->to_mtl());
+				break;
+			case TYPE_FRGBA_BV:
+			case TYPE_FRGBA:
+				pb->SetValue(paramId, 0, value->to_acolor());
+				break;
+			case TYPE_POINT2:
+				pb->SetValue(paramId, 0, value->to_point2());
+				break;
+			case TYPE_POINT3:
+				pb->SetValue(paramId, 0, value->to_point3());
+				break;
+			case TYPE_POINT4:
+				pb->SetValue(paramId, 0, value->to_point4());
+				break;
+			default:
+				DbgAssert(false);
+				ScriptPrint(_T("ERROR : Unsupported parameter type for SetMtlBaseParamByName().\n"));
+				break;
+			}
+
+			break;
+		}
+	}
+
+	// clang-format off
+	BEGIN_FUNCTION_MAP
+		PROP_FNS(fid_GetUIOptions, GetUIOptions, fid_SetUIOptions, SetUIOptions, TYPE_INTERFACE);
+		FN_2(fid_ImportFile, TYPE_INT, ImportFile, TYPE_STRING, TYPE_INTERFACE);
+		FN_2(fid_ImportFromCache, TYPE_INT, ImportFromCache, TYPE_INT64, TYPE_INTERFACE);
+		FN_3(fid_ConvertUsdMesh, TYPE_VALUE, ConvertUsdMesh, TYPE_INT64, TYPE_STRING, TYPE_INTERFACE);
+		FN_4(fid_ConvertUsdBasisCurve, TYPE_VALUE, ConvertUsdBasisCurve, TYPE_INT64, TYPE_STRING, TYPE_BOOL, TYPE_INTERFACE);
+		FN_0(fid_CreateOptions, TYPE_INTERFACE, CreateOptions);
+		FN_1(fid_CreateOptionsFromJsonString, TYPE_INTERFACE, CreateOptionsFromJsonString, TYPE_STRING);
+		VFN_2(fid_Log, Log, TYPE_ENUM, TYPE_STRING);
+		VFN_3(fid_SetMaterialParamByName, SetMtlBaseParamByName, TYPE_MTL, TYPE_STRING, TYPE_VALUE);
+		VFN_3(fid_SetTexmapParamByName, SetMtlBaseParamByName, TYPE_TEXMAP, TYPE_STRING, TYPE_VALUE);
+	END_FUNCTION_MAP
+	// clang-format on
+};
+
+#define USDIMPORT_INTERFACE Interface_ID(0x2b240ddb, 0x61f331e8)
+
+// clang-format off
+static USDImportInterface usdImportInterface(
+	USDIMPORT_INTERFACE, _T("USDImport"), 0, GetUSDImporterDesc(), 0,
+	// Functions
+	USDImportInterface::fid_ImportFile, _T("ImportFile"), "Import USD file with custom options.", TYPE_INT, FP_NO_REDRAW, 2,
+		_T("filePath"), 0, TYPE_STRING,
+		_T("importOptions"), 0, TYPE_INTERFACE, f_keyArgDefault, NULL,
+	USDImportInterface::fid_ImportFromCache, _T("ImportFromCache"), "Import USD stage from cache with custom options.", TYPE_INT, FP_NO_REDRAW, 2,
+		_T("stageCacheId"), 0, TYPE_INT,
+		_T("importOptions"), 0, TYPE_INTERFACE, f_keyArgDefault, NULL,
+
+	USDImportInterface::fid_ConvertUsdMesh, _T("ConvertUsdMesh"), "Converts a USD mesh to a TriMesh.", TYPE_VALUE, FP_NO_REDRAW, 3,
+		_T("stageCacheId"), 0, TYPE_INT,
+		_T("path"), 0, TYPE_STRING,
+		_T("options"), 0, TYPE_INTERFACE, f_keyArgDefault, NULL,
+
+	USDImportInterface::fid_ConvertUsdBasisCurve, _T("ConvertUsdBasisCurve"), "Converts a USD basis curve to a 3dsMax Editable Spline. If 'asBezierShape:true' is specified, then the curve will be converted to a BezierShape.", TYPE_VALUE, FP_NO_REDRAW, 4,
+		_T("stageCacheId"), 0, TYPE_INT,
+		_T("path"), 0, TYPE_STRING,
+		_T("asBezierShape"), 0, TYPE_BOOL, f_keyArgDefault, false,
+		_T("options"), 0, TYPE_INTERFACE, f_keyArgDefault, NULL,
+		
+	USDImportInterface::fid_SetMaterialParamByName, _T("SetMaterialParamByName"), "Sets a material parameter, by name, and fast.", TYPE_VOID, FP_NO_REDRAW, 3,
+		_T("material"), 0, TYPE_MTL,
+		_T("paramName"), 0, TYPE_STRING,
+		_T("value"), 0, TYPE_VALUE,
+
+	USDImportInterface::fid_SetTexmapParamByName, _T("SetTexmapParamByName"), "Sets a texture map parameter, by name, and fast.", TYPE_VOID, FP_NO_REDRAW, 3,
+		_T("texmap"), 0, TYPE_TEXMAP,
+		_T("paramName"), 0, TYPE_STRING,
+		_T("value"), 0, TYPE_VALUE,
+			
+	USDImportInterface::fid_CreateOptions, _T("CreateOptions"), "Create a new set of import options filled with default values", TYPE_INTERFACE, FP_NO_REDRAW, 0,
+
+	USDImportInterface::fid_CreateOptionsFromJsonString, _T("CreateOptionsFromJson"), "Creates import options from a JSON formatted string.", TYPE_INTERFACE, FP_NO_REDRAW, 1,
+		_T("jsonString"), 0, TYPE_STRING,
+
+	USDImportInterface::fid_Log, _T("Log"), "Log info, warning, and error messages to USD import logs from USD import callbacks.", TYPE_VOID, FP_NO_REDRAW, 2,
+		_T("logLevel"), 0, TYPE_ENUM, USDImportInterface::eid_LogLevel,
+		_T("message"), 0, TYPE_STRING, properties,
+	properties, 
+	USDImportInterface::fid_GetUIOptions, USDImportInterface::fid_SetUIOptions, _T("UIOptions"), 0, TYPE_INTERFACE,
+	enums,
+	USDImportInterface::eid_LogLevel, 3,
+		_T("info"), MaxUsd::Log::Level::Info,
+		_T("warn"), MaxUsd::Log::Level::Warn,
+		_T("error"), MaxUsd::Log::Level::Error,
+	p_end
+);
+// clang-format on
\ No newline at end of file
diff --git a/src/USDImport/VersionOverrides.h b/src/USDImport/VersionOverrides.h
new file mode 100644
index 0000000..6070607
--- /dev/null
+++ b/src/USDImport/VersionOverrides.h
@@ -0,0 +1,21 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+// Definitions specific to the present .dll
+#define USD_COMPONENT_BINARY_INTERNAL_NAME "USDComponent\0"
+#define USD_COMPONENT_BINARY_ORIGINAL_FILE_NAME "USDImport.dli\0"
+#define USD_COMPONENT_BINARY_FILE_DESCRIPTION "3ds Max USD plugin\0"
diff --git a/src/USDImport/Views/IUSDImportView.h b/src/USDImport/Views/IUSDImportView.h
new file mode 100644
index 0000000..a9e2385
--- /dev/null
+++ b/src/USDImport/Views/IUSDImportView.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+
+/**
+ * \brief Abstract class describing the interface for a USD Import View.
+ */
+class IUSDImportView
+{
+public:
+    /**
+     * \brief Destructor.
+     */
+    virtual ~IUSDImportView() = 0 { }
+
+    /**
+     * \brief Return the build options for the 3ds Max scene to translate from the USD Stage.
+     * \return The build options for the 3ds Max scene to translate from the USD Stage.
+     */
+    virtual MaxUsd::MaxSceneBuilderOptions GetBuildOptions() const = 0;
+
+    /**
+     * \brief Display the View.
+     * \return A flag indicating whether the User chose to import the USD file.
+     */
+    virtual bool Execute() = 0;
+};
diff --git a/src/USDImport/Views/USDImportDialog.cpp b/src/USDImport/Views/USDImportDialog.cpp
new file mode 100644
index 0000000..15b04a2
--- /dev/null
+++ b/src/USDImport/Views/USDImportDialog.cpp
@@ -0,0 +1,579 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "USDImportDialog.h"
+
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Utilities/DiagnosticDelegate.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/PluginUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/UiUtils.h>
+#include <MaxUsd/Widgets/DiagnosticMessagesModelFactory.h>
+#include <MaxUsd/Widgets/TreeModelFactory.h>
+
+#include <Qt/QmaxMainWindow.h>
+#include <Qt/QmaxToolClips.h>
+
+#include <IPathConfigMgr.h>
+#include <QtGui/qevent.h>
+#include <helpsys.h>
+#include <maxapi.h>
+#include <qfiledialog.h>
+#include <qpushbutton.h>
+#include <qwhatsthis.h>
+
+#define idh_usd_import _T("idh_usd_import")
+
+USDImportDialog::USDImportDialog(
+    const fs::path&                       filename,
+    const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+    QWidget*                              parent)
+    : QDialog { parent }
+    , buildOptions(buildOptions)
+{
+    setWindowFlags(windowFlags() | Qt::WindowContextHelpButtonHint);
+    ui->setupUi(this);
+    setParent(GetCOREInterface()->GetQmaxMainWindow(), windowFlags());
+
+    QPixmap headerIcon = style()->standardPixmap(QStyle::SP_MessageBoxInformation);
+    ui->left_label->setPixmap(headerIcon);
+
+    ui->version_label->setText(QString::fromStdString(MaxUsd::GetPluginDisplayVersion()));
+
+    const std::string stageFilepath = filename.u8string();
+
+    const auto filePath = QString::fromStdString(stageFilepath);
+    ui->path->setText(filePath);
+    ui->path->setToolTip(filePath);
+
+    {
+        // Attach the Diagnostic Message delegate to USD only in the context of the initial call to
+        // "Open()", since the goal is only to inform the User about contextual information that may
+        // be relevant at that moment:
+        const auto diagnosticDelegate
+            = MaxUsd::Diagnostics::ScopedDelegate::Create<MaxUsd::Diagnostics::LogDelegate>(
+                true /* buffered */);
+
+        stage = CreateUSDStage(stageFilepath);
+        // If any Diagnostic Messages where emitted by USD, display them in a scrollable list for
+        // the User to review:
+        if (diagnosticDelegate.HasMessages()) {
+            QDiagnosticMessagesModel
+                = MaxUsd::DiagnosticMessagesModelFactory::CreateFromMessageList(
+                    diagnosticDelegate.GetDiagnosticMessages(), this);
+            ui->diagnosticMessagesView->setModel(QDiagnosticMessagesModel.get());
+            ui->diagnosticMessagesView->horizontalHeader()->setSectionResizeMode(
+                MaxUsd::QDiagnosticMessagesModel::TYPE, QHeaderView::ResizeMode::ResizeToContents);
+        } else {
+            ui->usdDiagnosticsWidget->setVisible(false);
+        }
+    }
+
+    // Animation block
+    SetAnimationConfiguration();
+
+    connect(
+        ui->startFrameSpinBox,
+        static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
+        this,
+        &USDImportDialog::OnStartTimeCodeValueChanged);
+    connect(
+        ui->endFrameSpinBox,
+        static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
+        this,
+        &USDImportDialog::OnEndTimeCodeValueChanged);
+    connect(
+        ui->endFrameCheckBox,
+        &QCheckBox::stateChanged,
+        this,
+        &USDImportDialog::OnEndFrameCheckBoxStateChanged);
+
+    // scene content block
+    ui->importMaterialsCheckbox->setChecked(buildOptions.GetTranslateMaterials());
+    QObject::connect(
+        ui->importMaterialsCheckbox,
+        &QCheckBox::stateChanged,
+        this,
+        &USDImportDialog::OnTranslateMaterialsStateChanged);
+
+    // These calls must come after the UI is initialized via "setupUi()":
+    treeModel = MaxUsd::TreeModelFactory::CreateFromStage(stage, this);
+    proxyModel = std::make_unique<QSortFilterProxyModel>(this);
+
+    // Configure the TreeView of the dialog:
+    proxyModel->setSourceModel(treeModel.get());
+
+    proxyModel->setDynamicSortFilter(false);
+    proxyModel->setFilterCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
+    ui->treeView->setModel(proxyModel.get());
+    ui->treeView->expandToDepth(3);
+
+    QHeaderView* treeHeader = ui->treeView->header();
+
+    // Use the same width for the first column of the TreeView as the width of the "filter" text box
+    // above it:
+    treeHeader->resizeSection(0, ui->filterLineEdit->size().width());
+
+    // Configure the "Path" column to be the one that stretches to accommodate sufficient space for
+    // content:
+    treeHeader->setStretchLastSection(false);
+    treeHeader->setSectionResizeMode(
+        MaxUsd::QTreeModel::TREE_COLUMNS::PATH, QHeaderView::ResizeMode::Stretch);
+
+    treeHeader->setToolTip(QApplication::translate(
+        "ImportDialog",
+        "Select a prim for import. All prims descending from the selected prim are imported into "
+        "your scene.",
+        nullptr));
+
+    connect(
+        ui->filterLineEdit, &QLineEdit::textChanged, this, &USDImportDialog::OnSearchFilterChanged);
+    connect(
+        ui->treeView->selectionModel(),
+        &QItemSelectionModel::selectionChanged,
+        this,
+        &USDImportDialog::OnTreeViewSelectionChanged);
+
+    // Select the first row by default:
+    ui->treeView->setCurrentIndex(proxyModel->index(0, 0));
+
+    // Create the Spinner overlay on top of the TreeView, once it is configured:
+    overlay = std::make_unique<MaxUsd::QSpinnerOverlayWidget>(ui->treeView);
+
+    const MaxUsd::Log::Options& logOptions = buildOptions.GetLogOptions();
+    QObject::connect(
+        ui->logDataLevelCombo,
+        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+        this,
+        &USDImportDialog::OnLogDataLevelStateChanged);
+    QObject::connect(
+        ui->logPathToolButton,
+        &QToolButton::clicked,
+        this,
+        &USDImportDialog::OnLogPathBrowseClicked);
+    ui->logDataLevelCombo->setCurrentIndex(static_cast<int>(logOptions.level));
+
+    const auto logPath = QString::fromStdString(logOptions.path.u8string());
+    ui->logPathLineEdit->setText(logPath);
+    ui->logPathLineEdit->setToolTip(logPath);
+
+    ToggleLogUI();
+
+    const float dpiScale = MaxSDK::GetUIScaleFactor();
+    this->resize(
+        static_cast<int>(this->geometry().width() * dpiScale),
+        static_cast<int>(this->geometry().height() * dpiScale));
+
+    // contexts / chasers
+    const auto& currentContexts = buildOptions.GetContextNames();
+    auto        contexts = pxr::MaxUsdJobContextRegistry::ListJobContexts();
+
+    // filters out the export contexts
+    contexts.erase(
+        std::remove_if(
+            contexts.begin(),
+            contexts.end(),
+            [](pxr::TfToken& c) {
+                return !pxr::MaxUsdJobContextRegistry::GetJobContextInfo(c).importEnablerCallback;
+            }),
+        contexts.end());
+
+    if (!contexts.empty()) {
+        // sort the registered import chasers alphabetically
+        std::sort(
+            contexts.begin(), contexts.end(), [](const pxr::TfToken& a, const pxr::TfToken& b) {
+                return pxr::MaxUsdJobContextRegistry::GetJobContextInfo(a).niceName
+                    < pxr::MaxUsdJobContextRegistry::GetJobContextInfo(b).niceName;
+            });
+
+        auto layout = new QVBoxLayout(ui->pluginConfigurationGroupBox);
+
+        int offset = MaxSDK::UIScaled(3);
+        int largeOffset = MaxSDK::UIScaled(6);
+        layout->setContentsMargins(largeOffset, offset, offset, MaxSDK::UIScaled(4));
+        layout->setSpacing(MaxSDK::UIScaled(2));
+
+        bool first_context = true;
+
+        for (const auto& context : contexts) {
+            const auto& contextInfo = pxr::MaxUsdJobContextRegistry::GetJobContextInfo(context);
+
+            auto        jobContext = contextInfo.jobContext;
+            std::string contextName = jobContext.GetString();
+            std::string contextNiceName = contextInfo.niceName.GetString();
+
+            auto contextLayout = new QHBoxLayout();
+            contextLayout->setContentsMargins(0, 0, 0, 0);
+
+            auto contextCheckBox = new QCheckBox(QString::fromStdString(contextNiceName));
+            contextCheckBox->setObjectName(
+                QString("Enable_Context_%1").arg(QString::fromStdString(contextName)));
+            contextCheckBox->setToolTip(contextInfo.exportDescription.GetString().c_str());
+            contextCheckBox->setChecked(currentContexts.find(context) != currentContexts.end());
+            contextLayout->addWidget(contextCheckBox, 1);
+
+            if (contextInfo.importOptionsCallback != nullptr) {
+                auto contextOptionsBtn = new QPushButton(tr("Options"));
+                contextOptionsBtn->setObjectName(
+                    QString("Options_Context_%1").arg(QString::fromStdString(contextName)));
+                contextLayout->addWidget(contextOptionsBtn, 0);
+
+                contextOptionsBtn->setEnabled(contextCheckBox->isChecked());
+                connect(
+                    contextCheckBox,
+                    &QAbstractButton::clicked,
+                    contextOptionsBtn,
+                    &QWidget::setEnabled);
+
+                auto optionsCallback = contextInfo.importOptionsCallback;
+                connect(
+                    contextOptionsBtn,
+                    &QPushButton::clicked,
+                    this,
+                    [this, jobContext, contextName, optionsCallback]() {
+                        pxr::VtDictionary contextOptions = optionsCallback(
+                            contextName, this, this->buildOptions.GetJobContextOptions(jobContext));
+                        this->buildOptions.SetJobContextOptions(jobContext, contextOptions);
+                    });
+            }
+
+            connect(
+                contextCheckBox,
+                &QAbstractButton::clicked,
+                this,
+                [this, contextName](bool checked) {
+                    std::set<std::string> contextNames = this->buildOptions.GetContextNames();
+                    if (checked) {
+                        auto result = contextNames.insert(contextName);
+                        DbgAssert(result.second);
+                    } else {
+                        auto result = contextNames.erase(contextName);
+                        DbgAssert(result == 1u);
+                    }
+                    this->buildOptions.SetContextNames(contextNames);
+                });
+
+            if (first_context) {
+                first_context = false;
+            } else {
+                auto separator = new QFrame();
+                separator->setFrameStyle(QFrame::HLine | QFrame::Sunken);
+                layout->addWidget(separator);
+            }
+
+            layout->addLayout(contextLayout);
+        }
+    } else {
+        ui->pluginConfigurationGroupBox->hide();
+    }
+
+    // 3dsMax toolclips do not behave so well (linger and do not disappear or move with the dialog).
+    // Disable until these issues are fixed.
+    MaxUsd::Ui::DisableMaxToolClipsRecursively(this);
+}
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool USDImportDialog::nativeEvent(const QByteArray& eventType, void* message, qintptr* result)
+#else
+bool USDImportDialog::nativeEvent(const QByteArray& eventType, void* message, long* result)
+#endif
+{
+    MSG* msg = static_cast<MSG*>(message); // safe to do because we are on windows only
+    if (msg->message == WM_HELP) {
+        MaxSDK::IHelpSystem::GetInstance()->ShowProductHelpForTopic(idh_usd_import);
+        *result = TRUE;
+        return true;
+    }
+    return false;
+}
+
+bool USDImportDialog::event(QEvent* ev)
+{
+    if (ev->type() == QEvent::EnterWhatsThisMode) {
+        // We need to leave immediately the "What's this" mode, otherwise
+        // system is waiting for a click on particular widget
+        QWhatsThis::leaveWhatsThisMode();
+        // Open a new web page containing help about usd component import
+        MaxSDK::IHelpSystem::GetInstance()->ShowProductHelpForTopic(idh_usd_import);
+        return true;
+    }
+    return __super::event(ev);
+}
+
+void USDImportDialog::showEvent(QShowEvent* ev)
+{
+    // the import button is  the one with focus on show dialog
+    // if the focus has not changed when pressing 'enter' the import is launched
+    ui->buttons->button(QDialogButtonBox::StandardButton::Ok)->setFocus(Qt::NoFocusReason);
+}
+
+void USDImportDialog::keyPressEvent(QKeyEvent* e)
+{
+    switch (e->key()) {
+    case Qt::Key_Return:
+    case Qt::Key_Enter: {
+        // ONLY if the import button is still the one with focus
+        // when pressing 'enter' the import is launched
+        QWidget* w = focusWidget();
+        if (w != ui->buttons->button(QDialogButtonBox::StandardButton::Ok))
+            return;
+    } break;
+
+    default: QDialog::keyPressEvent(e);
+    }
+}
+
+bool USDImportDialog::Execute() { return exec() == QDialog::Accepted; }
+
+MaxUsd::MaxSceneBuilderOptions USDImportDialog::GetBuildOptions() const { return buildOptions; }
+
+pxr::UsdStageRefPtr USDImportDialog::CreateUSDStage(const fs::path& filename)
+{
+    pxr::UsdStageRefPtr stage
+        = pxr::UsdStage::Open(filename.u8string(), pxr::UsdStage::InitialLoadSet::LoadNone);
+    if (stage == nullptr) {
+        stage = pxr::UsdStage::CreateInMemory();
+    }
+    return stage;
+}
+
+void USDImportDialog::OnSearchFilterChanged(const QString& searchFilter)
+{
+    // Stop any search that was already ongoing but that has not yet completed:
+    if (searchThread != nullptr && !searchThread->isFinished()) {
+        searchThread->quit();
+        searchThread->wait();
+    }
+
+    // Create a timer that will display a Spinner if the search has been ongoing for a (small)
+    // amount of time, to let the User know that a background task is ongoing and that 3ds Max is
+    // not frozen:
+    searchTimer = std::make_unique<QTimer>(this);
+    searchTimer->setSingleShot(true);
+    connect(searchTimer.get(), &QTimer::timeout, searchTimer.get(), [this]() {
+        ui->treeView->setEnabled(false);
+        overlay->StartSpinning();
+    });
+    searchTimer->start(static_cast<int>(std::chrono::milliseconds(125).count()));
+
+    // Create a thread to perform a search for the given criterias in the background in order to
+    // maintain a responsive UI that continues accepting input from the User:
+    searchThread = std::make_unique<MaxUsd::USDSearchThread>(stage, searchFilter.toStdString());
+    connect(
+        searchThread.get(), &MaxUsd::USDSearchThread::finished, searchThread.get(), [&, this]() {
+            // Since results have been received, discard the timer that was waiting for results so
+            // that the Spinner Widget is not displayed:
+            searchTimer->stop();
+
+            // Set the search results as the new effective data:
+            treeModel = std::move(searchThread->ConsumeResults());
+            proxyModel->setSourceModel(treeModel.get());
+
+            // Set the View to a sensible state to reflect the new data:
+            bool searchYieledResults = proxyModel->hasChildren();
+            ui->treeView->expandAll();
+            ui->treeView->selectionModel()->clearSelection();
+            ui->treeView->setEnabled(searchYieledResults);
+            ui->buttons->button(QDialogButtonBox::Ok)->setEnabled(false);
+            if (searchYieledResults) {
+                overlay->Hide();
+            } else {
+                overlay->ShowInformationMessage(tr("Your search did not match any Prim."));
+            }
+        });
+    searchThread->start(QThread::Priority::TimeCriticalPriority);
+}
+
+void USDImportDialog::OnTreeViewSelectionChanged(
+    const QItemSelection& selectedItems,
+    const QItemSelection& deselectedItems)
+{
+    // Ensure that items cannot be deselected from the TreeView, to avoid being in a state where no
+    // item of the hierarchy from which to import is selected.
+    //
+    // Note that Qt does not trigger "selectionChanged" signals when changing selection from within
+    // the propagation chain, so this will not cause an infinite callback loop.
+    QItemSelectionModel* selectionModel = ui->treeView->selectionModel();
+    if (selectionModel != nullptr) {
+        bool selectionIsEmpty = selectionModel->selection().isEmpty();
+        if (selectionIsEmpty) {
+            selectionModel->select(deselectedItems, QItemSelectionModel::Select);
+        } else {
+            pxr::UsdStagePopulationMask stagePopulationMask;
+            std::vector<pxr::SdfPath>   maskPaths;
+
+            for (const auto& selectedPathIndex :
+                 selectionModel->selectedRows(MaxUsd::QTreeModel::TREE_COLUMNS::PATH)) {
+                QStandardItem* item
+                    = treeModel->itemFromIndex(proxyModel->mapToSource(selectedPathIndex));
+                if (item != nullptr) {
+                    QVariant pathData = item->data(Qt::DisplayRole);
+                    if (pathData.isValid() && pathData.canConvert<QString>()) {
+                        maskPaths.push_back(pxr::SdfPath(pathData.toString().toStdString()));
+                    }
+                }
+            }
+            buildOptions.SetStageMaskPaths(maskPaths);
+        }
+
+        // Make sure the "Import" button is disabled if no item of the Tree is selected:
+        ui->buttons->button(QDialogButtonBox::Ok)->setEnabled(!selectionIsEmpty);
+    }
+}
+
+void USDImportDialog::OnStartTimeCodeValueChanged(double value)
+{
+    buildOptions.SetStartTimeCode(value);
+
+    ui->endFrameSpinBox->setMinimum(value);
+}
+
+void USDImportDialog::OnEndTimeCodeValueChanged(double value)
+{
+    buildOptions.SetEndTimeCode(value);
+    if (!ui->endFrameSpinBox->isEnabled()) {
+        ui->endFrameSpinBox->clear();
+    }
+}
+
+void USDImportDialog::OnEndFrameCheckBoxStateChanged(bool checked)
+{
+    ui->endFrameSpinBox->setEnabled(checked);
+
+    auto       timeConfig = buildOptions.GetResolvedTimeConfig(stage);
+    const auto startTime = timeConfig.GetStartTimeCode();
+    if (checked) {
+        if (oldEndFrameSpinnerValue < startTime) {
+            oldEndFrameSpinnerValue = startTime;
+        }
+        ui->endFrameSpinBox->setValue(oldEndFrameSpinnerValue);
+    } else {
+        oldEndFrameSpinnerValue = ui->endFrameSpinBox->value();
+        ui->endFrameSpinBox->clear();
+        buildOptions.SetEndTimeCode(startTime);
+    }
+}
+
+void USDImportDialog::OnLogDataLevelStateChanged(int currentIndex)
+{
+    buildOptions.SetLogLevel(static_cast<MaxUsd::Log::Level>(currentIndex));
+    ToggleLogUI();
+    ToggleImportButton();
+}
+
+void USDImportDialog::OnTranslateMaterialsStateChanged(bool checked)
+{
+    if (!checked) {
+        buildOptions.SetShadingModes(MaxUsd::MaxSceneBuilderOptions::ShadingModes());
+    } else {
+        buildOptions.SetDefaultShadingModes();
+    }
+}
+
+void USDImportDialog::OnLogPathBrowseClicked()
+{
+    const TCHAR* importDir
+        = MaxSDKSupport::GetString(IPathConfigMgr::GetPathConfigMgr()->GetDir(APP_EXPORT_DIR));
+    QString qDir = QString::fromStdString(MaxUsd::MaxStringToUsdString(importDir));
+    QString logfile = QFileDialog::getSaveFileName(
+        this, USDImportDialog::tr("Select file to save logs"), qDir, tr("Log (*.txt *.log)"));
+    if (!logfile.isEmpty()) {
+        ui->logPathLineEdit->setText(logfile);
+        ui->logPathLineEdit->setToolTip(logfile);
+        buildOptions.SetLogPath(logfile.toStdString());
+    }
+    ToggleImportButton();
+}
+
+void USDImportDialog::ToggleLogUI()
+{
+    if (buildOptions.GetLogOptions().level == MaxUsd::Log::Level::Off) {
+        ui->logPathWidget->setEnabled(false);
+    } else {
+        ui->logPathWidget->setEnabled(true);
+    }
+}
+
+void USDImportDialog::ToggleImportButton()
+{
+    bool enableImportButton = true;
+    if (buildOptions.GetLogOptions().level != MaxUsd::Log::Level::Off
+        && buildOptions.GetLogOptions().path.empty()) {
+        enableImportButton = false;
+        ui->logPathLineEdit->setFocus();
+    }
+    ui->buttons->button(QDialogButtonBox::Ok)->setEnabled(enableImportButton);
+}
+
+void USDImportDialog::SetAnimationConfiguration()
+{
+    ui->startFrameSpinBox->setMinimum(-DBL_MAX);
+    ui->startFrameSpinBox->setMaximum(DBL_MAX);
+    ui->endFrameSpinBox->setMinimum(-DBL_MAX);
+    ui->endFrameSpinBox->setMaximum(DBL_MAX);
+
+    MaxUsd::MaxSceneBuilderOptions::ImportTimeMode initialTimeMode = buildOptions.GetTimeMode();
+    buildOptions.SetTimeMode(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::AllRange);
+    const auto timeConfig = buildOptions.GetResolvedTimeConfig(stage);
+    if (initialTimeMode == MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime
+        || initialTimeMode == MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime) {
+        buildOptions.SetTimeMode(initialTimeMode);
+    }
+
+    const double startTimeCode = timeConfig.GetStartTimeCode();
+    double       endTimeCode = timeConfig.GetEndTimeCode();
+    // the user could have change the time config from script before opening the ui
+    // this switch is to try to maintain their configuration when displaying the window
+    switch (buildOptions.GetTimeMode()) {
+    case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime:
+    case MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime: {
+        oldEndFrameSpinnerValue = endTimeCode;
+        ui->endFrameCheckBox->setChecked(false);
+        break;
+    }
+    default: {
+        break;
+    }
+    }
+
+    // this shouldn't happen, but case that end time code was not properly set
+    if (endTimeCode < startTimeCode) {
+        endTimeCode = startTimeCode;
+    }
+
+    ui->startFrameSpinBox->setResetValue(startTimeCode);
+    if (buildOptions.GetTimeMode() == MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime) {
+        ui->startFrameSpinBox->setValue(endTimeCode);
+    } else {
+        ui->startFrameSpinBox->setValue(startTimeCode);
+    }
+    buildOptions.SetStartTimeCode(startTimeCode);
+
+    if (buildOptions.GetTimeMode() == MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime
+        || buildOptions.GetTimeMode()
+            == MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime) {
+        ui->endFrameSpinBox->clear();
+    } else {
+        ui->endFrameSpinBox->setResetValue(endTimeCode);
+        ui->endFrameSpinBox->setMinimum(startTimeCode);
+        ui->endFrameSpinBox->setValue(endTimeCode);
+    }
+    buildOptions.SetEndTimeCode(endTimeCode);
+
+    // set the time mode to custom because the user may change things around
+    buildOptions.SetTimeMode(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::CustomRange);
+}
diff --git a/src/USDImport/Views/USDImportDialog.h b/src/USDImport/Views/USDImportDialog.h
new file mode 100644
index 0000000..7905610
--- /dev/null
+++ b/src/USDImport/Views/USDImportDialog.h
@@ -0,0 +1,196 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "IUSDImportView.h"
+#include "ui_USDImportDialog.h"
+
+#include <MaxUsd/Widgets/QDiagnosticMessagesModel.h>
+#include <MaxUsd/Widgets/QSpinnerOverlayWidget.h>
+#include <MaxUsd/Widgets/QTreeModel.h>
+#include <MaxUsd/Widgets/USDSearchThread.h>
+
+#include <QtCore/QSortFilterProxyModel.h>
+#include <memory>
+
+class QKeyEvent;
+
+/**
+ * \brief USD file import dialog.
+ */
+class USDImportDialog
+    : public QDialog
+    , public IUSDImportView
+{
+public:
+    /**
+     * \brief Constructor.
+     * \param filename Absolute file path of a USD file to import.
+     * \param buildOptions The currently set import options.
+     * \param parent A reference to the parent widget of the dialog.
+     */
+    explicit USDImportDialog(
+        const fs::path&                       filename,
+        const MaxUsd::MaxSceneBuilderOptions& buildOptions,
+        QWidget*                              parent = nullptr);
+
+    /**
+     * \brief Display the View.
+     * \return A flag indicating whether the User chose to import the USD file.
+     */
+    bool Execute() override;
+
+    /**
+     * \brief Return the build options for the 3ds Max scene to build.
+     * \return The build options for the 3ds Max scene to build.
+     */
+    MaxUsd::MaxSceneBuilderOptions GetBuildOptions() const override;
+
+protected:
+    /**
+     * \brief Callback function that is called on platform/OS native events.
+     *	See https://doc.qt.io/qt-6/qwidget.html#nativeEvent for more information.
+     * \param eventType QByteArray ref that holds the type of platform/OS that generated the event.
+     * \param message void pointer holding the message (the actual event).
+     * \param result long pointer holding the result of the operation to be set by the function.
+     */
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    virtual bool nativeEvent(const QByteArray& eventType, void* message, qintptr* result) override;
+#else
+    virtual bool nativeEvent(const QByteArray& eventType, void* message, long* result) override;
+#endif
+
+    /**
+     * \brief Callback function that is called on Qt events.
+     * \param ev Pointer to QEvent object that holds information on the event.
+     */
+    bool event(QEvent* ev) override;
+
+    /**
+     * \brief Callback function that is called on Qt show events.
+     * \param ev Pointer to QShowEvent object that holds information on the show event.
+     */
+    void showEvent(QShowEvent* ev) override;
+
+    /**
+     * \brief Callback function that is called on Qt key press events.
+     * \param e Pointer to QKeyEvent object that holds information on the key press event.
+     */
+    void keyPressEvent(QKeyEvent* e) override;
+
+    /**
+     * \brief Create a USD Stage from the given source file so its content can be displayed in the dialog.
+     * \remarks In case of error, a valid (albeit empty) USD Stage will be returned. The "diagnosticDelegate" can be
+     * consulted to infer information about USD Diagnostic information emitted by USD when
+     * attempting to open the given file.
+     * \param filename Absolute file path of a USD file to import.
+     * \return The USD Stage created from the given source file.
+     */
+    pxr::UsdStageRefPtr CreateUSDStage(const fs::path& filename);
+
+    /**
+     * \brief Callback function executed upon changing the text in the search box.
+     * \param searchFilter The new content of the search box.
+     */
+    void OnSearchFilterChanged(const QString& searchFilter);
+
+    /**
+     * \brief Callback function executed upon selecting items in the TreeView.
+     * \param selectedItems The list of TreeView items which were selected.
+     * \param deselectedItems The list of TreeView items which were deselected.
+     */
+    void OnTreeViewSelectionChanged(
+        const QItemSelection& selectedItems,
+        const QItemSelection& deselectedItems);
+
+    /**
+     * \brief Callback function executed upon changing the value of the "start time code value" spinbox.
+     * \param value The new value of the timecode spinbox value.
+     */
+    void OnStartTimeCodeValueChanged(double value);
+
+    /**
+     * \brief Callback function executed upon changing the value of the "end time code value" spinbox.
+     * \param value The new value of the timecode spinbox value.
+     */
+    void OnEndTimeCodeValueChanged(double value);
+
+    /**
+     * \brief Callback function executed upon changing the value of the "end time code enabled" checkbox.
+     * \param checked The new value of the timecode checkbox value.
+     */
+    void OnEndFrameCheckBoxStateChanged(bool checked);
+
+    /**
+     * \brief Callback function executed upon changing the value of the "Log Level" dropdown
+     * \param currentIndex index of the selection option for "Log Level"
+     */
+    void OnLogDataLevelStateChanged(int currentIndex);
+
+    /**
+     * \brief Callback executed upon clicking the "Materials" checkbox of the UI.
+     * \param checked Flag indicating if the checkbox was just checked by the User.
+     */
+    void OnTranslateMaterialsStateChanged(bool checked);
+
+    /**
+     * \brief Callback for file browsing log path
+     */
+    void OnLogPathBrowseClicked();
+
+    /**
+     * \brief Toggles logPath selection UI based on log level selection.
+     */
+    void ToggleLogUI();
+
+    /**
+     * \brief Toggles import button based on options.
+     */
+    void ToggleImportButton();
+
+protected:
+    /// Sets the initial configuration for the animation session of the UI
+    void SetAnimationConfiguration();
+
+    /// Reference to the Qt UI View of the dialog:
+    std::unique_ptr<Ui::ImportDialog> ui { std::make_unique<Ui::ImportDialog>() };
+
+    /// Reference to the Model holding the structure of the USD file hierarchy:
+    std::unique_ptr<MaxUsd::QTreeModel> treeModel;
+    /// Reference to the Proxy Model used to sort and filter the USD file hierarchy:
+    std::unique_ptr<QSortFilterProxyModel> proxyModel;
+
+    /// Reference to the thread used to perform Prim searches in the background:
+    std::unique_ptr<MaxUsd::USDSearchThread> searchThread;
+    /// Reference to the timer used to display a Spinner overlay on top of the TreeView in case of
+    /// lengthy search operations:
+    std::unique_ptr<QTimer> searchTimer;
+
+    /// Reference to the USD Stage holding the list of Prims which could be imported:
+    pxr::UsdStageRefPtr stage;
+
+    /// Build options to use to convert the USD content into 3ds Max content:
+    MaxUsd::MaxSceneBuilderOptions buildOptions;
+
+    /// TreeView overlay on which to display an animated Spinner or message to the User:
+    std::unique_ptr<MaxUsd::QSpinnerOverlayWidget> overlay;
+
+    /// Reference to the Model holding the structure of Diagnostic Messags emitted by USD:
+    std::unique_ptr<MaxUsd::QDiagnosticMessagesModel> QDiagnosticMessagesModel;
+
+    /// Used to keep the old user's input so that it can be restored afterwards
+    double oldEndFrameSpinnerValue { 0 };
+};
diff --git a/src/USDImport/Views/USDImportDialog.ui b/src/USDImport/Views/USDImportDialog.ui
new file mode 100644
index 0000000..2b3f69a
--- /dev/null
+++ b/src/USDImport/Views/USDImportDialog.ui
@@ -0,0 +1,571 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ImportDialog</class>
+ <widget class="QDialog" name="ImportDialog">
+  <property name="windowTitle">
+   <string>USD Importer</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,1">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QFrame" name="header">
+     <property name="autoFillBackground">
+      <bool>false</bool>
+     </property>
+     <property name="styleSheet">
+      <string notr="true">background-color: rgb(3, 75, 124);
+color: rgb(255, 255, 255);
+outline-color: rgb(0, 173, 229);
+QFrame{border: 1px solid rgb(0, 173, 229)}
+                  </string>
+     </property>
+     <property name="frameShape">
+      <enum>QFrame::Box</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_6" stretch="0,1,0">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>9</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QWidget" name="widget" native="true">
+        <property name="minimumSize">
+         <size>
+          <width>32</width>
+          <height>32</height>
+         </size>
+        </property>
+        <property name="styleSheet">
+         <string notr="true">background-color: rgb(0, 173, 229);</string>
+        </property>
+        <layout class="QVBoxLayout" name="verticalLayout_4">
+         <item>
+          <widget class="QLabel" name="left_label">
+           <property name="text">
+            <string/>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignCenter</set>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </item>
+      <item>
+       <layout class="QFormLayout" name="formLayout_2">
+        <property name="leftMargin">
+         <number>9</number>
+        </property>
+        <property name="topMargin">
+         <number>9</number>
+        </property>
+        <property name="rightMargin">
+         <number>9</number>
+        </property>
+        <property name="bottomMargin">
+         <number>9</number>
+        </property>
+        <item row="0" column="0">
+         <widget class="QLabel" name="product_label">
+          <property name="text">
+           <string>USD for Autodesk® 3ds Max® :</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QLabel" name="version_label">
+          <property name="styleSheet">
+           <string notr="true"/>
+          </property>
+          <property name="text">
+           <string/>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="right_label">
+        <property name="styleSheet">
+         <string notr="true">color: #1c1c1c;</string>
+        </property>
+        <property name="text">
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;a href=&quot;https://www.autodesk.com/3dsmax-usd-feedback&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#ffffff;&quot;&gt;Feedback&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
+        <property name="openExternalLinks">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="MainLayout">
+     <property name="spacing">
+      <number>6</number>
+     </property>
+     <property name="leftMargin">
+      <number>9</number>
+     </property>
+     <property name="topMargin">
+      <number>9</number>
+     </property>
+     <property name="rightMargin">
+      <number>9</number>
+     </property>
+     <property name="bottomMargin">
+      <number>9</number>
+     </property>
+     <item>
+      <widget class="QGroupBox" name="InputGroupBox">
+       <property name="title">
+        <string>Input</string>
+       </property>
+       <property name="checkable">
+        <bool>false</bool>
+       </property>
+       <layout class="QFormLayout" name="formLayout">
+        <item row="0" column="0">
+         <widget class="QLabel" name="pathLabel">
+          <property name="toolTip">
+           <string>Specifies the file path of your USD import.</string>
+          </property>
+          <property name="text">
+           <string>Path:</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QLineEdit" name="path">
+          <property name="text">
+           <string>C:\\StaticLocation\\foo.usd</string>
+          </property>
+          <property name="frame">
+           <bool>false</bool>
+          </property>
+          <property name="readOnly">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QWidget" name="atFrameWidget" native="true">
+          <layout class="QHBoxLayout" name="horizontalLayout_4">
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
+            <number>0</number>
+           </property>
+          </layout>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="pluginConfigurationGroupBox">
+       <property name="title">
+        <string>Plug-In Configuration </string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="SceneContentGroupBox">
+       <property name="title">
+        <string>Scene Content</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_6">
+        <item>
+         <widget class="QCheckBox" name="importMaterialsCheckbox">
+          <property name="toolTip">
+           <string>If selected, shading data is extracted from the USD file for import.</string>
+          </property>
+          <property name="text">
+           <string>Materials</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSplitter" name="splitter">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <widget class="QWidget" name="verticalLayoutWidget_2">
+           <layout class="QVBoxLayout" name="verticalLayout_5" stretch="0,1">
+            <item>
+             <widget class="QLineEdit" name="filterLineEdit">
+              <property name="inputMask">
+               <string/>
+              </property>
+              <property name="placeholderText">
+               <string>Filter by prim name...</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QTreeView" name="treeView">
+              <property name="editTriggers">
+               <set>QAbstractItemView::NoEditTriggers</set>
+              </property>
+              <property name="uniformRowHeights">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+          <widget class="QWidget" name="usdDiagnosticsWidget" native="true">
+           <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1">
+            <property name="leftMargin">
+             <number>0</number>
+            </property>
+            <property name="topMargin">
+             <number>0</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <property name="bottomMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="diagnosticLabel">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Warning: USD has errors.</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QTableView" name="diagnosticMessagesView">
+              <property name="editTriggers">
+               <set>QAbstractItemView::NoEditTriggers</set>
+              </property>
+              <property name="alternatingRowColors">
+               <bool>true</bool>
+              </property>
+              <property name="selectionMode">
+               <enum>QAbstractItemView::NoSelection</enum>
+              </property>
+              <attribute name="horizontalHeaderVisible">
+               <bool>false</bool>
+              </attribute>
+              <attribute name="horizontalHeaderMinimumSectionSize">
+               <number>75</number>
+              </attribute>
+              <attribute name="horizontalHeaderStretchLastSection">
+               <bool>true</bool>
+              </attribute>
+              <attribute name="verticalHeaderVisible">
+               <bool>false</bool>
+              </attribute>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="AnimationGroupBox">
+       <property name="title">
+        <string>Animation</string>
+       </property>
+       <layout class="QHBoxLayout" name="horizontalLayout_8">
+        <item>
+         <widget class="QLabel" name="framStartEndLabel">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="toolTip">
+           <string>Specify the USD animation range (in TimeCodes) to import into 3ds Max (as frames).</string>
+          </property>
+          <property name="text">
+           <string>Frame Range Start/End:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="MaxSDK::QmaxDoubleSpinBox" name="startFrameSpinBox">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="dashLabel">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="text">
+           <string> - </string>
+          </property>
+          <property name="alignment">
+           <set>Qt::AlignCenter</set>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="endFrameCheckBox">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="minimumSize">
+           <size>
+            <width>16</width>
+            <height>16</height>
+           </size>
+          </property>
+          <property name="toolTip">
+           <string>Toggle the end frame field, if applicable. When disabled, a single frame from the start field is imported.</string>
+          </property>
+          <property name="text">
+           <string/>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="MaxSDK::QmaxDoubleSpinBox" name="endFrameSpinBox">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="AdvancedGroupBox">
+       <property name="title">
+        <string>Advanced</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <widget class="QWidget" name="logLevelWidget" native="true">
+          <layout class="QHBoxLayout" name="horizontalLayout_3" stretch="0,0,1">
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
+            <number>0</number>
+           </property>
+           <item>
+            <widget class="QLabel" name="logDataLevelLabel">
+             <property name="toolTip">
+              <string>Select the type of log data to be stored from importing your scene. By default, log data is not stored.</string>
+             </property>
+             <property name="text">
+              <string>Log Data:</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QComboBox" name="logDataLevelCombo">
+             <item>
+              <property name="text">
+               <string>Off</string>
+              </property>
+             </item>
+             <item>
+              <property name="text">
+               <string>Errors Only</string>
+              </property>
+             </item>
+             <item>
+              <property name="text">
+               <string>Errors and Warnings</string>
+              </property>
+             </item>
+             <item>
+              <property name="text">
+               <string>Full Log Data</string>
+              </property>
+             </item>
+            </widget>
+           </item>
+           <item>
+            <spacer name="horizontalSpacer">
+             <property name="orientation">
+              <enum>Qt::Horizontal</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>218</width>
+               <height>17</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+          </layout>
+         </widget>
+        </item>
+        <item>
+         <widget class="QWidget" name="logPathWidget" native="true">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <layout class="QHBoxLayout" name="horizontalLayout_7" stretch="0,1,0">
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
+            <number>0</number>
+           </property>
+           <item>
+            <widget class="QLabel" name="logPathLabel">
+             <property name="toolTip">
+              <string>Specify the file path for log data storage.</string>
+             </property>
+             <property name="text">
+              <string>Log Path:</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLineEdit" name="logPathLineEdit">
+             <property name="text">
+              <string/>
+             </property>
+             <property name="readOnly">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QToolButton" name="logPathToolButton">
+             <property name="text">
+              <string>...</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttons">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MaxSDK::QmaxDoubleSpinBox</class>
+   <extends>QDoubleSpinBox</extends>
+   <header location="global">Qt/QmaxSpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttons</sender>
+   <signal>accepted()</signal>
+   <receiver>ImportDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>240</x>
+     <y>493</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>240</x>
+     <y>256</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttons</sender>
+   <signal>rejected()</signal>
+   <receiver>ImportDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>240</x>
+     <y>493</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>240</x>
+     <y>256</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/USDImport/resource.h b/src/USDImport/resource.h
new file mode 100644
index 0000000..28e10f8
--- /dev/null
+++ b/src/USDImport/resource.h
@@ -0,0 +1,37 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by resource.rc
+//
+#define IDS_LIBDESCRIPTION         1
+#define IDS_CATEGORY               2
+#define IDS_USDIMPORTER_CLASS_NAME 3
+#define IDS_LONGDESCRIPTION        4
+#define IDS_SHORTDESCRIPTION       5
+#define IDS_AUTHOR                 6
+#define IDS_COPYRIGHT              7
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE 101
+#define _APS_NEXT_COMMAND_VALUE  40001
+#define _APS_NEXT_CONTROL_VALUE  1001
+#define _APS_NEXT_SYMED_VALUE    101
+#endif
+#endif
diff --git a/src/USDImport/resource.rc b/src/USDImport/resource.rc
new file mode 100644
index 0000000..0e6c315
--- /dev/null
+++ b/src/USDImport/resource.rc
@@ -0,0 +1,86 @@
+// Microsoft Visual C++ generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// String Table
+//
+
+STRINGTABLE
+BEGIN
+    IDS_LIBDESCRIPTION      "USD Importer (Autodesk)"
+    IDS_CATEGORY            "USD"
+    IDS_USDIMPORTER_CLASS_NAME "USDImporter"
+    IDS_LONGDESCRIPTION     "Pixar's Universal Scene Description"
+    IDS_SHORTDESCRIPTION    "USD"
+    IDS_AUTHOR              "Autodesk Inc."
+    IDS_COPYRIGHT           "Copyright 2019 Autodesk, Inc."
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (Canada) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENC)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_CAN
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE 
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (Canada) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+#include "VersionOverrides.h"
+#include "../USDComponentVersion.r"
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/src/USDImport/usdimport_banned.h b/src/USDImport/usdimport_banned.h
new file mode 100644
index 0000000..8745389
--- /dev/null
+++ b/src/USDImport/usdimport_banned.h
@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <usd_banned.h>
+
+// After to avoid some errors from naming conflicts.
+#pragma warning(push)
+#pragma warning(disable : 4244)
+#include <QtGui/qmatrix4x4.h>
+#pragma warning(pop)
\ No newline at end of file
diff --git a/src/USDUFE.props b/src/USDUFE.props
new file mode 100644
index 0000000..d5a6b41
--- /dev/null
+++ b/src/USDUFE.props
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" 
+	xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+	<PropertyGroup Label="UserMacros">
+		<UsdUfeDir Condition="'$(MaxUsdDevKit)'!='' and '$(UsdUfeDir)'==''">$(MaxUsdDevKit)\UsdUfe</UsdUfeDir>
+		<UsdUfeDir Condition="'$(UsdUfeDir)'==''">$(Artifacts)$(VersionTarget)\UsdUfe</UsdUfeDir>
+		<UsdUfeInc>$(UsdUfeDir)\include</UsdUfeInc>
+		<UsdUfeLib>$(UsdUfeDir)\lib</UsdUfeLib>
+	</PropertyGroup>
+	
+	<ItemDefinitionGroup>
+		<ClCompile>
+			<AdditionalIncludeDirectories>$(UsdUfeInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+		</ClCompile>
+		<Link>
+			<AdditionalLibraryDirectories>$(UsdUfeLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+			<AdditionalDependencies>usdUfe.lib;%(AdditionalDependencies)</AdditionalDependencies>
+		</Link>
+	</ItemDefinitionGroup>
+</Project>
diff --git a/src/pxrUsdPreviewSurface/DLLEntry.h b/src/pxrUsdPreviewSurface/DLLEntry.h
new file mode 100644
index 0000000..14bf038
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/DLLEntry.h
@@ -0,0 +1,19 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/src/pxrUsdPreviewSurface/DllEntry.cpp b/src/pxrUsdPreviewSurface/DllEntry.cpp
new file mode 100644
index 0000000..7344b25
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/DllEntry.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
diff --git a/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.cpp b/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.cpp
new file mode 100644
index 0000000..a4358ef
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "UsdPreviewSurfaceWriter.h"
+
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_DEFINE_PUBLIC_TOKENS(
+    PxrMaxUsdPreviewSurfaceTokens,
+    PXRUSDPREVIEWSURFACE_USD_PREVIEW_SURFACE_TOKENS);
+
+REGISTER_SHADING_MODE_EXPORT_MATERIAL_CONVERSION(
+    UsdImagingTokens->UsdPreviewSurface,
+    UsdShadeTokens->universalRenderContext,
+    PxrMaxUsdPreviewSurfaceTokens->niceName,
+    PxrMaxUsdPreviewSurfaceTokens->exportDescription);
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.h b/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.h
new file mode 100644
index 0000000..3d0275a
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/UsdPreviewSurfaceWriter.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/base/tf/token.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// clang-format off
+#define PXRUSDPREVIEWSURFACE_USD_PREVIEW_SURFACE_TOKENS                                          \
+	((niceName, "USD Preview Surface"))                                                          \
+	((exportDescription, "Exports the bound shader as a USD preview surface UsdShade network.")) \
+	((importDescription, "Search for a USD preview surface UsdShade network to import."))
+// clang-format on
+
+TF_DECLARE_PUBLIC_TOKENS(
+    PxrMaxUsdPreviewSurfaceTokens,
+    ,
+    PXRUSDPREVIEWSURFACE_USD_PREVIEW_SURFACE_TOKENS);
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.def b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.def
new file mode 100644
index 0000000..dfa7c58
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.def
@@ -0,0 +1,4 @@
+LIBRARY basePxrUsdPreviewSurface.dll
+EXPORTS
+SECTIONS
+   .data READ WRITE
diff --git a/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj
new file mode 100644
index 0000000..f02615e
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ManualScript Include="$(ProjectDir)plugInfo.json" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="UsdPreviewSurfaceWriter.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="UsdPreviewSurfaceWriter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="basePxrUsdPreviewSurface.def" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>BasePxrUsdPreviewSurface</ProjectName>
+    <ProjectGuid>{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>$(ProjectName)</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)plugin\$(ProjectName)\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>MFB_PACKAGE_NAME=$(ProjectName);MFB_ALT_PACKAGE_NAME=$(ProjectName);MFB_PACKAGE_MODULE=$(ProjectName);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <ShowIncludes Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">false</ShowIncludes>
+      <RemoveUnreferencedCodeData Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>..\usd_banned.h</ForcedIncludeFiles>
+    </ClCompile>
+    <Link>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+      <AdditionalDependencies>maxUsd.lib;core.lib;geom.lib;maxutil.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(LibDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <Target Name="CopyManualScript" BeforeTargets="ClCompile">
+    <Copy SourceFiles="@(ManualScript)" DestinationFiles="$(OutDir)plugInfo.json" SkipUnchangedFiles="true" />
+  </Target>
+</Project>
\ No newline at end of file
diff --git a/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj.filters b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj.filters
new file mode 100644
index 0000000..9a4052a
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/basePxrUsdPreviewSurface.vcxproj.filters
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{90ff44df-aa7a-4204-8693-a21baa0ff2a3}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{084860b4-945f-4147-8cca-cdd915998537}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="UsdPreviewSurfaceWriter.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DLLEntry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="UsdPreviewSurfaceWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DllEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="basePxrUsdPreviewSurface.def" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/pxrUsdPreviewSurface/plugInfo.json b/src/pxrUsdPreviewSurface/plugInfo.json
new file mode 100644
index 0000000..a8caa7d
--- /dev/null
+++ b/src/pxrUsdPreviewSurface/plugInfo.json
@@ -0,0 +1,14 @@
+{
+   "Plugins": [
+      {
+         "Info": {
+            "MaxUsd": {
+               "ShadingModePlugin": {}
+            }
+         },
+         "Name": "basePxrUsdPreviewSurface",
+         "Type": "library",
+         "LibraryPath": "basePxrUsdPreviewSurface.dll"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/python/maxUsd.py b/src/python/maxUsd.py
new file mode 100644
index 0000000..a79bd87
--- /dev/null
+++ b/src/python/maxUsd.py
@@ -0,0 +1,65 @@
+#
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import sys
+if sys.version_info.major == 3 and sys.version_info.minor == 11:
+    try:
+        import shiboken6
+    except ImportError:
+        print("WARN: PySide6 is not installed. You can install pip and PySide6 with the scripts below:")
+        print('"{}" -m ensurepip --upgrade --user'.format(sys.executable))
+        print('"{}" -m pip install --user PySide6==6.5.3'.format(sys.executable))
+        status = False
+else:
+    try:
+        import shiboken2
+    except ImportError:
+        print("WARN: PySide2 is not installed. You can install pip and PySide2 with the scripts below:")
+        print('"{}" -m ensurepip --upgrade --user'.format(sys.executable))
+        print('"{}" -m pip install --user PySide2==5.15.1'.format(sys.executable))
+        status = False
+
+from pxr import Tf
+if hasattr(Tf, 'PreparePythonModule'):
+    Tf.PreparePythonModule('_maxUsd')
+else:
+    from . import _maxUsd
+    Tf.PrepareModule(_maxUsd, locals())
+    del _maxUsd
+del Tf
+
+__version__ = "0.9.0"
+__version_info__ = (0, 9, 0, "", "")
+
+class AnimatedAttributeHelper:
+    """Helper class to import prim attributes that may or not be animated"""
+    def __init__(self, setter):
+        """Construtor
+        @type setter: method
+        @param setter: the method to call to set the attribute
+        (expects fct(value, usdTimeCode, maxFrame) -> bool)
+        """
+        self.setter = setter
+    def __call__(self):
+        """Self called method to return the setter method wrapped to handle an animated attribute"""
+        def AssignAttributeValue(value, usdTimeCode, maxFrame, animated) -> bool:
+            import pymxs
+            if animated:
+                with pymxs.attime(maxFrame):
+                    return self.setter(value, usdTimeCode, maxFrame)
+            else:
+                return self.setter(value, usdTimeCode, maxFrame)
+        return AssignAttributeValue
diff --git a/src/python/module.cpp b/src/python/module.cpp
new file mode 100644
index 0000000..0040a2e
--- /dev/null
+++ b/src/python/module.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <pxr/base/tf/pyModule.h>
+#include <pxr/pxr.h>
+
+#include <boost/python/docstring_options.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+TF_WRAP_MODULE
+{
+    // This will enable user-defined docstrings and python signatures,
+    // while disabling the C++ signatures
+    boost::python::docstring_options local_docstring_options(true, true, false);
+
+    TF_WRAP(MaxSceneBuilderOptions);
+    TF_WRAP(UsdSceneBuilderOptions);
+    TF_WRAP(ReadJobContext);
+    TF_WRAP(PrimReader);
+    TF_WRAP(PrimWriter);
+    TF_WRAP(TranslationUtils);
+    TF_WRAP(TranslatorMaterial);
+    TF_WRAP(ShaderReader);
+    TF_WRAP(ShaderWriter);
+    TF_WRAP(ShadingMode);
+    TF_WRAP(ExportChaserRegistryFactoryContext);
+    TF_WRAP(ImportChaserRegistryFactoryContext);
+    TF_WRAP(ExportChaser);
+    TF_WRAP(ImportChaser);
+    TF_WRAP(JobContextRegistry);
+    TF_WRAP(MeshConverter);
+    TF_WRAP(MaterialConverter);
+    TF_WRAP(Utilities);
+    TF_WRAP(ExportTime);
+    TF_WRAP(Interval);
+}
diff --git a/src/python/moduleDeps.cpp b/src/python/moduleDeps.cpp
new file mode 100644
index 0000000..6fef821
--- /dev/null
+++ b/src/python/moduleDeps.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <pxr/base/tf/registryManager.h>
+#include <pxr/base/tf/scriptModuleLoader.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+
+#include <vector>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+TF_REGISTRY_FUNCTION(TfScriptModuleLoader)
+{
+    // List of direct dependencies for this library.
+    const std::vector<TfToken> reqs
+        = { TfToken("ar"),           TfToken("gf"),       TfToken("hd"),      TfToken("hdx"),
+            TfToken("js"),           TfToken("kind"),     TfToken("plug"),    TfToken("sdf"),
+            TfToken("tf"),           TfToken("usd"),      TfToken("usdGeom"), TfToken("usdImaging"),
+            TfToken("usdImagingGL"), TfToken("usdLux"),   TfToken("usdRi"),   TfToken("usdShade"),
+            TfToken("usdSkel"),      TfToken("usdUtils"), TfToken("vt") };
+    TfScriptModuleLoader::GetInstance().RegisterLibrary(TfToken("maxUsd"), TfToken("maxUsd"), reqs);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/python/python.vcxproj b/src/python/python.vcxproj
new file mode 100644
index 0000000..9dc866e
--- /dev/null
+++ b/src/python/python.vcxproj
@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="wrapImportChaser.cpp" />
+    <ClCompile Include="wrapMaterialConverter.cpp" />
+    <ClCompile Include="module.cpp" />
+    <ClCompile Include="moduleDeps.cpp" />
+    <ClCompile Include="pythonObjectRegistry.cpp" />
+    <ClCompile Include="wrapExportTime.cpp" />
+    <ClCompile Include="wrapInterval.cpp" />
+    <ClCompile Include="wrapJobContextRegistry.cpp" />
+    <ClCompile Include="wrapMaxSceneBuilderOptions.cpp" />
+    <ClCompile Include="wrapMeshConverter.cpp" />
+    <ClCompile Include="wrapPrimReader.cpp" />
+    <ClCompile Include="wrapPrimWriter.cpp" />
+    <ClCompile Include="wrapExportChaser.cpp" />
+    <ClCompile Include="wrapReadJobContext.cpp" />
+    <ClCompile Include="wrapShaderWriter.cpp" />
+    <ClCompile Include="wrapShadingMode.cpp" />
+    <ClCompile Include="wrapTranslationUtils.cpp" />
+    <ClCompile Include="wrapTranslatorMaterial.cpp" />
+    <ClCompile Include="wrapUSDSceneBuilderOptions.cpp" />
+    <ClCompile Include="wrapUtilities.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pythonObjectRegistry.h" />
+    <ClInclude Include="wrapInterval.h" />
+    <ClInclude Include="wrapMaxSceneBuilderOptions.h" />
+    <ClInclude Include="wrapReadJobContext.h" />
+    <ClInclude Include="wrapUSDSceneBuilderOptions.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ManualScript Include="$(ProjectDir)maxUsd.py" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="maxUsd.py" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>Python</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{1ABE147E-CB5A-485B-8B06-86C19CB5A553}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
+    <OutName>maxUsd</OutName>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+    <Import Project="$(SolutionDir)\UFE.props" />
+    <Import Project="$(SolutionDir)\USDUFE.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">true</EmbedManifest>
+    <EmbedManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</EmbedManifest>
+    <TargetName>_$(OutName)</TargetName>
+    <TargetExt>.pyd</TargetExt>
+    <OutDir>$(ContentsDir)bin\python\$(OutName)\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>MFB_PACKAGE_NAME=$(OutName);MFB_ALT_PACKAGE_NAME=$(OutName);MFB_PACKAGE_MODULE=$(OutName);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+      <DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <ShowIncludes Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">false</ShowIncludes>
+      <RemoveUnreferencedCodeData Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>..\usd_banned.h</ForcedIncludeFiles>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(PySideInc);$(PySideShibokenInc);$(PySideInc)/QtCore;$(PySideInc)/QtGui;$(PySideInc)/QtWidgets;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalOptions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">/Zc:__cplusplus /Zc:inline-</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+      <AdditionalDependencies>Maxscrpt.lib;maxUsd.lib;core.lib;geom.lib;maxutil.lib;MaxUsdObjects.lib;$(PySideLibraries);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(LibDir);$(PySideLib);$(PySideShibokenLib);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <Target Name="CopyManualScript" BeforeTargets="ClCompile">
+    <Copy SourceFiles="@(ManualScript)" DestinationFiles="$(OutDir)__init__.py" SkipUnchangedFiles="true" />
+  </Target>
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/python/python.vcxproj.filters b/src/python/python.vcxproj.filters
new file mode 100644
index 0000000..487f5ea
--- /dev/null
+++ b/src/python/python.vcxproj.filters
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{7a1bf55f-d35b-4e17-8f48-2056e9a3cb25}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{f5056d61-ef1e-4163-9016-4255c390a2c8}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="module.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="moduleDeps.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapShaderWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="pythonObjectRegistry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapShadingMode.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapUSDSceneBuilderOptions.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapPrimWriter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapTranslationUtils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapExportChaser.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapMeshConverter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapUtilities.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapJobContextRegistry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapExportTime.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapInterval.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapMaterialConverter.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapMaxSceneBuilderOptions.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapPrimReader.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapImportChaser.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapReadJobContext.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="wrapTranslatorMaterial.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pythonObjectRegistry.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="wrapUSDSceneBuilderOptions.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="wrapInterval.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="wrapMaxSceneBuilderOptions.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="wrapReadJobContext.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="maxUsd.py">
+      <Filter>Source Files</Filter>
+    </None>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/python/pythonObjectRegistry.cpp b/src/python/pythonObjectRegistry.cpp
new file mode 100644
index 0000000..0d9f0c5
--- /dev/null
+++ b/src/python/pythonObjectRegistry.cpp
@@ -0,0 +1,106 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/pyUtils.h>
+#include <pxr/pxr.h>
+
+#include <boost/python.hpp>
+
+using namespace std;
+using namespace boost::python;
+using namespace boost;
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+// Registers or updates a Python class for the provided key.
+size_t MaxUsdPythonObjectRegistry::RegisterPythonObject(object cl, const std::string& key)
+{
+    TClassIndex::const_iterator target = _sIndex.find(key);
+    if (target == _sIndex.cend()) {
+        HookInterpreterExit();
+        // Create a new entry:
+        size_t classIndex = _sClassVec.size();
+        _sClassVec.emplace_back(cl);
+        _sIndex.emplace(key, classIndex);
+        // Return a new factory function:
+        return classIndex;
+    } else {
+        _sClassVec[target->second] = cl;
+        return UPDATED;
+    }
+}
+
+void MaxUsdPythonObjectRegistry::UnregisterPythonObject(object cl, const std::string& key)
+{
+    TClassIndex::const_iterator target = _sIndex.find(key);
+    if (target != _sIndex.cend()) {
+        // Clear the Python class:
+        _sClassVec[target->second] = object();
+        _sIndex.erase(key);
+    }
+}
+
+bool MaxUsdPythonObjectRegistry::IsPythonClass(object cl)
+{
+    auto classAttr = cl.attr("__class__");
+    if (!classAttr) {
+        return false;
+    }
+    auto nameAttr = classAttr.attr("__name__");
+    if (!nameAttr) {
+        return false;
+    }
+    std::string name = extract<std::string>(nameAttr);
+    return name == "class";
+}
+
+std::string MaxUsdPythonObjectRegistry::ClassName(object cl)
+{
+    // Is it a Python class:
+    if (!IsPythonClass(cl)) {
+        // So far class is always first parameter, so we can have this check be here.
+        TfPyThrowRuntimeError("First argument must be a Python class");
+    }
+
+    auto nameAttr = cl.attr("__name__");
+    if (!nameAttr) {
+        TfPyThrowRuntimeError("Unexpected Python error: No __name__ attribute");
+    }
+
+    return std::string(boost::python::extract<std::string>(nameAttr));
+}
+
+MaxUsdPythonObjectRegistry::TClassVec   MaxUsdPythonObjectRegistry::_sClassVec;
+MaxUsdPythonObjectRegistry::TClassIndex MaxUsdPythonObjectRegistry::_sIndex;
+
+void MaxUsdPythonObjectRegistry::HookInterpreterExit()
+{
+    if (_sClassVec.empty()) {
+        if (import("atexit").attr("register")(&OnInterpreterExit).is_none()) {
+            TF_CODING_ERROR("Couldn't register unloader to atexit");
+        }
+    }
+}
+
+void MaxUsdPythonObjectRegistry::OnInterpreterExit()
+{
+    // Release all Python classes:
+    for (size_t i = 0; i < _sClassVec.size(); ++i) {
+        _sClassVec[i] = object();
+    }
+}
diff --git a/src/python/pythonObjectRegistry.h b/src/python/pythonObjectRegistry.h
new file mode 100644
index 0000000..86a71db
--- /dev/null
+++ b/src/python/pythonObjectRegistry.h
@@ -0,0 +1,62 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <pxr/pxr.h>
+
+#include <boost/python/class.hpp>
+#include <map>
+#include <string>
+#include <vector>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+//---------------------------------------------------------------------------------------------
+/// \brief Keeps track of registered Python classes and allows updating and unregistering them
+//---------------------------------------------------------------------------------------------
+class MaxUsdPythonObjectRegistry
+{
+protected:
+    static const size_t UPDATED = 0xFFFFFFFF;
+
+    // Registers or updates a Python class for the provided key.
+    static size_t RegisterPythonObject(boost::python::object cl, const std::string& key);
+
+    // Unregister a Python class for a given key. This will cause the associated factory function to
+    // stop producing this Python class.
+    static void UnregisterPythonObject(boost::python::object cl, const std::string& key);
+
+    static boost::python::object GetPythonObject(size_t index) { return _sClassVec[index]; }
+
+    static bool IsPythonClass(boost::python::object cl);
+
+    static std::string ClassName(boost::python::object cl);
+
+private:
+    // Static table of all registered Python classes, with associated index:
+    typedef std::vector<boost::python::object> TClassVec;
+    static TClassVec                           _sClassVec;
+    typedef std::map<std::string, size_t>      TClassIndex;
+    static TClassIndex                         _sIndex;
+
+    static void HookInterpreterExit();
+
+public:
+    // To be called when the Python interpreter exits.
+    static void OnInterpreterExit();
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/python/wrapExportChaser.cpp b/src/python/wrapExportChaser.cpp
new file mode 100644
index 0000000..b7cb81e
--- /dev/null
+++ b/src/python/wrapExportChaser.cpp
@@ -0,0 +1,262 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/Chaser/ExportChaser.h>
+#include <MaxUsd/Chaser/ExportChaserRegistry.h>
+
+#include <pxr/base/tf/pyPolymorphic.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/overloads.hpp>
+#include <boost/python/wrapper.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class ExportChaserRegistryFactoryContextWrapper : public MaxUsdExportChaserRegistry::FactoryContext
+{
+public:
+    typedef ExportChaserRegistryFactoryContextWrapper  This;
+    typedef MaxUsdExportChaserRegistry::FactoryContext base_t;
+
+    ExportChaserRegistryFactoryContextWrapper() = default;
+    ExportChaserRegistryFactoryContextWrapper(
+        const MaxUsdExportChaserRegistry::FactoryContext& ctx);
+
+    boost::python::dict GetPrimsToNodeHandles() const { return primsToNodeHandles; }
+
+    USDSceneBuilderOptionsWrapper GetJobArgs() const
+    {
+        return USDSceneBuilderOptionsWrapper(base_t::GetJobArgs());
+    }
+
+    const std::string GetFilename() const { return base_t::GetFilename().string(); }
+
+private:
+    boost::python::dict primsToNodeHandles;
+};
+
+ExportChaserRegistryFactoryContextWrapper::ExportChaserRegistryFactoryContextWrapper(
+    const MaxUsdExportChaserRegistry::FactoryContext& ctx)
+    : MaxUsdExportChaserRegistry::FactoryContext(
+          ctx.GetStage(),
+          ctx.GetPrimToNodeMap(),
+          ctx.GetJobArgs(),
+          ctx.GetFilename())
+{
+    for (const auto& item : ctx.GetPrimToNodeMap()) {
+        primsToNodeHandles[item.first] = item.second->GetHandle();
+    }
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdExportChaser
+//----------------------------------------------------------------------------------------------------------------------
+class ExportChaserWrapper
+    : public MaxUsdExportChaser
+    , public TfPyPolymorphic<MaxUsdExportChaser>
+{
+public:
+    typedef ExportChaserWrapper This;
+    typedef MaxUsdExportChaser  base_t;
+
+    static ExportChaserWrapper*
+    New(const ExportChaserRegistryFactoryContextWrapper& factoryContext, uintptr_t createdWrapper)
+    {
+        return (ExportChaserWrapper*)createdWrapper;
+    }
+
+    virtual ~ExportChaserWrapper() = default;
+
+    bool default_PostExport() { return base_t::PostExport(); }
+    bool PostExport() override
+    {
+        return this->CallVirtual<>("PostExport", &This::default_PostExport)();
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdExportChaserRegistry::Register. These will create
+        // python wrappers based on the latest Class registered.
+        MaxUsdExportChaser*
+        operator()(const MaxUsdExportChaserRegistry::FactoryContext& factoryContext)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return nullptr;
+            }
+            auto     chaser = new ExportChaserWrapper();
+            TfPyLock pyLock;
+
+            try {
+                boost::python::object instance = pyClass(
+                    ExportChaserRegistryFactoryContextWrapper(factoryContext), (uintptr_t)chaser);
+                boost::python::incref(instance.ptr());
+                initialize_wrapper(instance.ptr(), chaser);
+                return chaser;
+            } catch (...) {
+                // something went wrong in the chaser constructor
+                PyErr_Print();
+                return nullptr;
+            }
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static MaxUsdExportChaserRegistry::FactoryFn
+        Register(boost::python::object cl, const std::string& exportChaserName)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, exportChaserName));
+            if (classIndex != MaxUsdPythonObjectRegistry::UPDATED) {
+                // Return a new factory function:
+                return FactoryFnWrapper { classIndex };
+            } else {
+                // We already registered a factory function for this purpose:
+                return nullptr;
+            }
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& exportChaserName)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, exportChaserName));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& exportChaserName)
+        {
+            return ClassName(cl) + "," + exportChaserName + "," + ",ExportChaser";
+        }
+    };
+
+    static void Register(
+        boost::python::object cl,
+        const std::string&    exportChaserName,
+        const std::string&    niceName = {},
+        const std::string&    description = {})
+    {
+        MaxUsdExportChaserRegistry::FactoryFn fn = FactoryFnWrapper::Register(cl, exportChaserName);
+        if (fn) {
+            MaxUsdExportChaserRegistry::GetInstance().RegisterFactory(
+                exportChaserName,
+                (niceName.empty() ? exportChaserName
+                                  : niceName), // default to chaser name if niceName is empty
+                description,
+                fn,
+                true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const std::string& exportChaserName)
+    {
+        FactoryFnWrapper::Unregister(cl, exportChaserName);
+    }
+};
+
+BOOST_PYTHON_FUNCTION_OVERLOADS(RegisterExport_overloads, ExportChaserWrapper::Register, 2, 4);
+
+//----------------------------------------------------------------------------------------------------------------------
+void wrapExportChaserRegistryFactoryContext()
+{
+    boost::python::class_<ExportChaserRegistryFactoryContextWrapper>(
+        "MaxUsdExportChaserRegistryFactoryContext",
+        "Holds data that can be accessed when constructing an ExportChaser object. This class "
+        "allows the plugin\n"
+        "code to only know about the context object during construction and only the data it needs "
+        "to construct.",
+        boost::python::no_init)
+        .def(
+            "GetStage",
+            &MaxUsdExportChaserRegistry::FactoryContext::GetStage,
+            (boost::python::arg("self")),
+            "Get the USD stage being written to")
+        .def(
+            "GetPrimsToNodeHandles",
+            &ExportChaserRegistryFactoryContextWrapper::GetPrimsToNodeHandles,
+            (boost::python::arg("self")),
+            "Returns a dictionary that maps the source USD prim paths to the imported MAXScript "
+            "NodeHandles.")
+        .def(
+            "GetJobArgs",
+            &ExportChaserRegistryFactoryContextWrapper::GetJobArgs,
+            (boost::python::arg("self")),
+            "Get the current global export args in effect.")
+        .def(
+            "GetFilename",
+            &ExportChaserRegistryFactoryContextWrapper::GetFilename,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the file name and path where the stage is written to on disk.");
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void wrapExportChaser()
+{
+    typedef MaxUsdExportChaser This;
+
+    boost::python::class_<ExportChaserWrapper, boost::noncopyable>(
+        "ExportChaser",
+        "ExportChaser base class from which export chasers need to inherit from. An ExportChaser "
+        "instance is \n"
+        "created at each export and called at the end of the export process. Chasers should not "
+        "modify \n"
+        "the structure of the USD file. Use this to make small changes or to add attributes, in a\n"
+        "non-destructive way, to an exported stage.",
+        boost::python::no_init)
+        .def(
+            "__init__",
+            make_constructor(&ExportChaserWrapper::New),
+            "Class constructor. Chasers should save necessary data when constructed. The "
+            "constructor\n"
+            "receives the Context. Save what you need from it so that you can make use of the "
+            "information\n"
+            "at the Chaser execution later.")
+        .def(
+            "PostExport",
+            &This::PostExport,
+            &ExportChaserWrapper::default_PostExport,
+            (boost::python::arg("self")),
+            "Method being called at the end of the standard export process.")
+        .def(
+            "Register",
+            &ExportChaserWrapper::Register,
+            RegisterExport_overloads(
+                boost::python::args(
+                    "export_chaser_class", "export_chaser_name", "nice_name", "description"),
+                "Static method to register an ExportChaser into the ChaserRegistry."))
+        .staticmethod("Register")
+        .def("Unregister", &ExportChaserWrapper::Unregister)
+        .staticmethod("Unregister");
+}
diff --git a/src/python/wrapExportTime.cpp b/src/python/wrapExportTime.cpp
new file mode 100644
index 0000000..6fff455
--- /dev/null
+++ b/src/python/wrapExportTime.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+
+#include <MaxUsd/Utilities/TimeUtils.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/return_value_policy.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+void wrapExportTime()
+{
+    using namespace boost::python;
+
+    boost::python::class_<MaxUsd::ExportTime> c(
+        "ExportTime",
+        "An export frame time config.",
+        init<double, const pxr::UsdTimeCode&, bool>());
+    c.def(
+         "GetMaxTime",
+         &MaxUsd::ExportTime::GetMaxFrame,
+         return_value_policy<return_by_value>(),
+         (boost::python::arg("self")),
+         "The 3dsMax time for the frame being exported.")
+        .def(
+            "GetUsdTime",
+            &MaxUsd::ExportTime::GetUsdTime,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "The target USD TimeCode for the frame being exported.")
+        .def(
+            "IsFirstFrame",
+            &MaxUsd::ExportTime::IsFirstFrame,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Whether this frame is the first one being exported for the object.");
+}
\ No newline at end of file
diff --git a/src/python/wrapImportChaser.cpp b/src/python/wrapImportChaser.cpp
new file mode 100644
index 0000000..35f3e7a
--- /dev/null
+++ b/src/python/wrapImportChaser.cpp
@@ -0,0 +1,276 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+#include "wrapMaxSceneBuilderOptions.h"
+#include "wrapReadJobContext.h"
+
+#include <MaxUsd/Chaser/ImportChaser.h>
+#include <MaxUsd/Chaser/ImportChaserRegistry.h>
+
+#include <pxr/base/tf/pyPolymorphic.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/overloads.hpp>
+#include <boost/python/wrapper.hpp>
+#include <inode.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class ImportChaserRegistryFactoryContextWrapper : public MaxUsdImportChaserRegistry::FactoryContext
+{
+public:
+    typedef ImportChaserRegistryFactoryContextWrapper  This;
+    typedef MaxUsdImportChaserRegistry::FactoryContext base_t;
+
+    ImportChaserRegistryFactoryContextWrapper() = default;
+    ImportChaserRegistryFactoryContextWrapper(
+        const MaxUsdImportChaserRegistry::FactoryContext& ctx);
+
+    MaxUsdReadJobContextWrapper GetContext() const
+    {
+        return MaxUsdReadJobContextWrapper(base_t::GetContext());
+    }
+
+    MaxSceneBuilderOptionsWrapper GetJobArgs() const
+    {
+        return MaxSceneBuilderOptionsWrapper(base_t::GetJobArgs());
+    }
+
+    const std::string GetFilename() const { return base_t::GetFilename().string(); }
+
+    boost::python::dict GetPrimsToNodeHandles() const { return primsToNodeHandles; }
+
+private:
+    boost::python::dict primsToNodeHandles;
+};
+
+ImportChaserRegistryFactoryContextWrapper::ImportChaserRegistryFactoryContextWrapper(
+    const MaxUsdImportChaserRegistry::FactoryContext& ctx)
+    : MaxUsdImportChaserRegistry::FactoryContext(
+          *(new Usd_PrimFlagsPredicate()),
+          ctx.GetContext(),
+          ctx.GetFilename())
+{
+    const auto& nodeMap = ctx.GetContext().GetReferenceTargetRegistry();
+    for (const std::pair<pxr::SdfPath, RefTargetHandle>& item : nodeMap) {
+        INode* node = dynamic_cast<INode*>(item.second);
+        if (node) {
+            primsToNodeHandles[item.first] = node->GetHandle();
+        }
+    }
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdImportChaser
+//----------------------------------------------------------------------------------------------------------------------
+class ImportChaserWrapper
+    : public MaxUsdImportChaser
+    , public TfPyPolymorphic<MaxUsdImportChaser>
+{
+public:
+    typedef ImportChaserWrapper This;
+    typedef MaxUsdImportChaser  base_t;
+
+    static ImportChaserWrapper*
+    New(const ImportChaserRegistryFactoryContextWrapper& factoryContext, uintptr_t createdWrapper)
+    {
+        return (ImportChaserWrapper*)createdWrapper;
+    }
+
+    virtual ~ImportChaserWrapper() = default;
+
+    bool default_PostImport() { return base_t::PostImport(); }
+
+    bool PostImport() override
+    {
+        return this->CallVirtual<>("PostImport", &This::default_PostImport)();
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdImportChaserRegistry::Register. These will create
+        // python wrappers based on the latest Class registered.
+        MaxUsdImportChaser*
+        operator()(const MaxUsdImportChaserRegistry::FactoryContext& factoryContext)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return nullptr;
+            }
+            auto     chaser = new ImportChaserWrapper();
+            TfPyLock pyLock;
+
+            try {
+                boost::python::object instance = pyClass(
+                    ImportChaserRegistryFactoryContextWrapper(factoryContext), (uintptr_t)chaser);
+                boost::python::incref(instance.ptr());
+                initialize_wrapper(instance.ptr(), chaser);
+                return chaser;
+            } catch (...) {
+                // something went wrong in the chaser constructor
+                PyErr_Print();
+                return nullptr;
+            }
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static MaxUsdImportChaserRegistry::FactoryFn
+        Register(boost::python::object cl, const std::string& importChaserName)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, importChaserName));
+            if (classIndex != MaxUsdPythonObjectRegistry::UPDATED) {
+                // Return a new factory function:
+                return FactoryFnWrapper { classIndex };
+            } else {
+                // We already registered a factory function for this purpose:
+                return nullptr;
+            }
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& importChaserName)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, importChaserName));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& importChaserName)
+        {
+            return ClassName(cl) + "," + importChaserName + "," + ",ImportChaser";
+        }
+    };
+
+    static void Register(
+        boost::python::object cl,
+        const std::string&    importChaserName,
+        const std::string&    niceName = {},
+        const std::string&    description = {})
+    {
+        MaxUsdImportChaserRegistry::FactoryFn fn = FactoryFnWrapper::Register(cl, importChaserName);
+        if (fn) {
+            MaxUsdImportChaserRegistry::GetInstance().RegisterFactory(
+                importChaserName,
+                (niceName.empty() ? importChaserName
+                                  : niceName), // default to chaser name if niceName is empty
+                description,
+                fn,
+                true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const std::string& importChaserName)
+    {
+        FactoryFnWrapper::Unregister(cl, importChaserName);
+    }
+};
+
+BOOST_PYTHON_FUNCTION_OVERLOADS(RegisterImport_overloads, ImportChaserWrapper::Register, 2, 4);
+
+void wrapImportChaserRegistryFactoryContext()
+{
+    boost::python::class_<ImportChaserRegistryFactoryContextWrapper>(
+        "MaxUsdImportChaserRegistryFactoryContext",
+        "Holds data that can be accessed when constructing an ImportChaser object. This class "
+        "allows the plugin\n"
+        "code to only know about the context object during construction and only the data it needs "
+        "to construct.",
+        boost::python::no_init)
+        .def(
+            "GetContext",
+            &ImportChaserRegistryFactoryContextWrapper::GetContext,
+            (boost::python::arg("self")),
+            "Returns the context.")
+        .def(
+            "GetStage",
+            &ImportChaserRegistryFactoryContextWrapper::GetStage,
+            (boost::python::arg("self")),
+            "Get the imported USD stage.")
+        .def(
+            "GetFilename",
+            &ImportChaserRegistryFactoryContextWrapper::GetFilename,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the file name and path where the stage is written to on disk.")
+        .def(
+            "GetJobArgs",
+            &ImportChaserRegistryFactoryContextWrapper::GetJobArgs,
+            (boost::python::arg("self")),
+            "Get the current global import args in effect.")
+        .def(
+            "GetPrimsToNodeHandles",
+            &ImportChaserRegistryFactoryContextWrapper::GetPrimsToNodeHandles,
+            (boost::python::arg("self")),
+            "Returns a dictionary that maps the source USD prim paths to the imported MAXScript "
+            "NodeHandles.");
+}
+
+void wrapImportChaser()
+{
+    typedef MaxUsdImportChaser This;
+
+    boost::python::class_<ImportChaserWrapper, boost::noncopyable>(
+        "ImportChaser",
+        "ImportChaser base class from which import chasers need to inherit from. An ImportChaser "
+        "instance is \n"
+        "created at each import and called at the end of the import process. Chasers should not "
+        "modify \n"
+        "the structure of the USD file. Use this to make small changes or to add attributes, in a\n"
+        "non-destructive way, to an imported stage.",
+        boost::python::no_init)
+        .def(
+            "__init__",
+            make_constructor(&ImportChaserWrapper::New),
+            "Class constructor. Chasers should save necessary data when constructed. The "
+            "constructor\n"
+            "receives the Context. Save what you need from it so that you can make use of the "
+            "information\n"
+            "at the Chaser execution later.")
+        .def(
+            "PostImport",
+            &This::PostImport,
+            &ImportChaserWrapper::default_PostImport,
+            (boost::python::arg("self")),
+            "Method being called at the end of the standard import process.")
+        .def(
+            "Register",
+            &ImportChaserWrapper::Register,
+            RegisterImport_overloads(
+                boost::python::args(
+                    "imported_chaser_class", "import_chaser_name", "nice_name", "description"),
+                "Static method to register an ImportChaser into the ChaserRegistry."))
+        .staticmethod("Register")
+        .def("Unregister", &ImportChaserWrapper::Unregister)
+        .staticmethod("Unregister");
+}
diff --git a/src/python/wrapInterval.cpp b/src/python/wrapInterval.cpp
new file mode 100644
index 0000000..78f3f97
--- /dev/null
+++ b/src/python/wrapInterval.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapInterval.h"
+
+#include "pythonObjectRegistry.h"
+
+#include <boost/python/class.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/return_value_policy.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+void wrapInterval()
+{
+    using namespace boost::python;
+
+    boost::python::class_<IntervalWrapper> c(
+        "Interval", "A python wrapper for a 3dsMax Interval object.", init<double, double>());
+    c.def(
+         "Start",
+         &IntervalWrapper::Start,
+         return_value_policy<return_by_value>(),
+         (boost::python::arg("self")),
+         "The start frame of the interval.")
+        .def(
+            "End",
+            &IntervalWrapper::End,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "The end frame of the interval.")
+        .add_property("Forever", &IntervalWrapper::Forever)
+        .add_property("Never", &IntervalWrapper::Never);
+}
\ No newline at end of file
diff --git a/src/python/wrapInterval.h b/src/python/wrapInterval.h
new file mode 100644
index 0000000..b431dcc
--- /dev/null
+++ b/src/python/wrapInterval.h
@@ -0,0 +1,54 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+#include <MaxUsd/Utilities/TimeUtils.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class IntervalWrapper : public Interval
+{
+public:
+    IntervalWrapper()
+        : Interval()
+    {
+    }
+
+    IntervalWrapper(double start, double end)
+        : Interval { MaxUsd::GetTimeValueFromFrame(start), MaxUsd::GetTimeValueFromFrame(end) }
+    {
+    }
+
+    IntervalWrapper(const Interval& interval)
+        : Interval { interval }
+    {
+    }
+
+    double Start() { return MaxUsd::GetFrameFromTimeValue(Interval::Start()); }
+
+    double End() { return MaxUsd::GetFrameFromTimeValue(Interval::End()); }
+
+    static IntervalWrapper Forever()
+    {
+        static IntervalWrapper forever { FOREVER };
+        return forever;
+    }
+
+    static IntervalWrapper Never()
+    {
+        static IntervalWrapper never { NEVER };
+        return never;
+    }
+};
diff --git a/src/python/wrapJobContextRegistry.cpp b/src/python/wrapJobContextRegistry.cpp
new file mode 100644
index 0000000..69f7215
--- /dev/null
+++ b/src/python/wrapJobContextRegistry.cpp
@@ -0,0 +1,221 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Builders/JobContextRegistry.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+
+#include <pxr/base/tf/pyPolymorphic.h>
+
+#include <QtWidgets/qwidget.h>
+#include <autodecref.h>
+#include <boost/python.hpp>
+#include <boost/python/args.hpp>
+#include <sbkconverter.h>
+#include <shiboken.h>
+#ifdef USE_PYSIDE_6
+#include <QtWidgets/pyside6_qtwidgets_python.h>
+#else
+#include <QtWidgets/pyside2_qtwidgets_python.h>
+#endif
+// these are needed for the conversion of the QWidget pointer to a Python object
+PyTypeObject** SbkPySide_QtWidgetsTypes = nullptr;
+SbkConverter** SbkPySide_QtWidgetsTypeConverters = nullptr;
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdJobContextRegistry
+//----------------------------------------------------------------------------------------------------------------------
+class JobContextRegistry
+{
+public:
+    static TfTokenVector ListJobContexts() { return MaxUsdJobContextRegistry::ListJobContexts(); }
+
+    static boost::python::object GetJobContextInfo(const TfToken& jobContext)
+    {
+        MaxUsdJobContextRegistry::ContextInfo ctx
+            = MaxUsdJobContextRegistry::GetInstance().GetJobContextInfo(jobContext);
+        boost::python::dict dict;
+        dict["jobContext"] = ctx.jobContext;
+        dict["niceName"] = ctx.niceName;
+        dict["exportDescription"] = ctx.exportDescription;
+        dict["exportEnablerCallback"] = ctx.exportEnablerCallback;
+        dict["exportOptionsCallback"] = ctx.exportOptionsCallback;
+        dict["importDescription"] = ctx.importDescription;
+        dict["importEnablerCallback"] = ctx.importEnablerCallback;
+        dict["importOptionsCallback"] = ctx.importOptionsCallback;
+        return std::move(dict);
+    }
+
+    static void RegisterImportJobContext(
+        const std::string&    jobContext,
+        const std::string&    niceName,
+        const std::string&    description,
+        boost::python::object enablerFct)
+    {
+        if (!PyCallable_Check(enablerFct.ptr())) {
+            TF_CODING_ERROR(
+                "Parameter enablerFct should be a callable function returning a dictionary.");
+        }
+
+        MaxUsdJobContextRegistry::GetInstance().RegisterImportJobContext(
+            jobContext, niceName, description, [=]() { return callEnablerFn(enablerFct); }, true);
+    }
+    static void RegisterExportJobContext(
+        const std::string&    jobContext,
+        const std::string&    niceName,
+        const std::string&    description,
+        boost::python::object enablerFct)
+    {
+        if (!PyCallable_Check(enablerFct.ptr())) {
+            TF_CODING_ERROR(
+                "Parameter enablerFct should be a callable function returning a dictionary.");
+        }
+
+        MaxUsdJobContextRegistry::GetInstance().RegisterExportJobContext(
+            jobContext, niceName, description, [=]() { return callEnablerFn(enablerFct); }, true);
+    }
+
+    static void SetImportOptionsUI(const std::string& jobContext, boost::python::object optionFct)
+    {
+        if (!PyCallable_Check(optionFct.ptr())) {
+            TF_CODING_ERROR(
+                "Parameter optionFct should be a callable function returning a dictionary.");
+        }
+
+        MaxUsdJobContextRegistry::GetInstance().SetImportOptionsUI(
+            jobContext,
+            [=](const std::string& jobContext, QWidget* parentUI, const VtDictionary& options) {
+                return callOptionsFn(optionFct, jobContext, parentUI, options);
+            },
+            true);
+    }
+
+    static void SetExportOptionsUI(const std::string& jobContext, boost::python::object optionFct)
+    {
+        if (!PyCallable_Check(optionFct.ptr())) {
+            TF_CODING_ERROR(
+                "Parameter optionFct should be a callable function returning a dictionary.");
+        }
+
+        MaxUsdJobContextRegistry::GetInstance().SetExportOptionsUI(
+            jobContext,
+            [=](const std::string& jobContext, QWidget* parentUI, const VtDictionary& options) {
+                return callOptionsFn(optionFct, jobContext, parentUI, options);
+            },
+            true);
+    }
+
+private:
+    static VtDictionary callEnablerFn(boost::python::object fnc)
+    {
+        auto res = TfPyCall<VtDictionary>(fnc)();
+        return res;
+    }
+
+    static VtDictionary callOptionsFn(
+        boost::python::object fnc,
+        const std::string&    jobContext,
+        QWidget*              parentUI,
+        const VtDictionary&   options)
+    {
+        PyGILState_STATE gstate = PyGILState_Ensure();
+
+        PyObject* pyQtWidget = nullptr;
+        if (parentUI) {
+            if (!SbkPySide_QtWidgetsTypes) {
+#ifdef USE_PYSIDE_6
+                Shiboken::AutoDecRef requiredModule(Shiboken::Module::import("PySide6.QtWidgets"));
+#else
+                Shiboken::AutoDecRef requiredModule(Shiboken::Module::import("PySide2.QtWidgets"));
+#endif
+                if (!requiredModule.isNull()) {
+                    SbkPySide_QtWidgetsTypes = Shiboken::Module::getTypes(requiredModule);
+                    SbkPySide_QtWidgetsTypeConverters
+                        = Shiboken::Module::getTypeConverters(requiredModule);
+                }
+            }
+            if (SbkPySide_QtWidgetsTypes) {
+                // Convert the QWidget pointer to a Python object
+#ifdef USE_PYSIDE_6
+                pyQtWidget = Shiboken::Conversions::pointerToPython(
+                    SbkPySide_QtWidgetsTypes[SBK_QWIDGET_IDX], parentUI);
+#else
+                pyQtWidget = Shiboken::Conversions::pointerToPython(
+                    reinterpret_cast<SbkObjectType*>(SbkPySide_QtWidgetsTypes[SBK_QWIDGET_IDX]),
+                    parentUI);
+#endif
+            }
+        }
+
+        if (pyQtWidget == nullptr) {
+            pyQtWidget = Py_None;
+            Py_XINCREF(pyQtWidget);
+        }
+        auto res
+            = TfPyCall<VtDictionary>(fnc)(jobContext, boost::python::handle<>(pyQtWidget), options);
+        Py_XDECREF(pyQtWidget);
+
+        PyGILState_Release(gstate);
+        return res;
+    }
+};
+
+//----------------------------------------------------------------------------------------------------------------------
+void wrapJobContextRegistry()
+{
+    boost::python::class_<JobContextRegistry, boost::noncopyable>(
+        "JobContextRegistry", boost::python::no_init)
+        .def("ListJobContexts", &JobContextRegistry::ListJobContexts)
+        .staticmethod("ListJobContexts")
+        .def(
+            "GetJobContextInfo",
+            &JobContextRegistry::GetJobContextInfo,
+            boost::python::arg("job_context_name"),
+            "Get the JobContext information dictionary.")
+        .staticmethod("GetJobContextInfo")
+        .def(
+            "RegisterExportJobContext",
+            &JobContextRegistry::RegisterExportJobContext,
+            boost::python::args(
+                "job_context_name",
+                "job_context_nice_name",
+                "job_context_description",
+                "job_context_function"),
+            "Static method to register a JobContext function into the JobContextRegistry.")
+        .staticmethod("RegisterExportJobContext")
+        .def(
+            "RegisterImportJobContext",
+            &JobContextRegistry::RegisterImportJobContext,
+            boost::python::args(
+                "job_context_name",
+                "job_context_nice_name",
+                "job_context_description",
+                "job_context_function"),
+            "Static method to register a JobContext function into the JobContextRegistry.")
+        .staticmethod("RegisterImportJobContext")
+        .def(
+            "SetImportOptionsUI",
+            &JobContextRegistry::SetImportOptionsUI,
+            boost::python::args("job_context_name", "job_context_function"),
+            "Static method to register a JobContext option function into the JobContextRegistry.")
+        .staticmethod("SetImportOptionsUI")
+        .def(
+            "SetExportOptionsUI",
+            &JobContextRegistry::SetExportOptionsUI,
+            boost::python::args("job_context_name", "job_context_function"),
+            "Static method to register a JobContext option function into the JobContextRegistry.")
+        .staticmethod("SetExportOptionsUI");
+}
diff --git a/src/python/wrapMaterialConverter.cpp b/src/python/wrapMaterialConverter.cpp
new file mode 100644
index 0000000..2a7a060
--- /dev/null
+++ b/src/python/wrapMaterialConverter.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/MaterialConversion/MaterialConverter.h>
+
+#include <pxr/base/tf/pyContainerConversions.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class MaterialConverterWrapper
+{
+    MaterialConverterWrapper() = delete;
+    ~MaterialConverterWrapper() = delete;
+
+public:
+    static pxr::UsdShadeMaterial ConvertToUSDMaterial(
+        ULONG                          mtlHandle,
+        UsdStagePtr                    stage,
+        const std::string&             filename,
+        bool                           isUSDZ,
+        SdfPath                        path,
+        USDSceneBuilderOptionsWrapper& options,
+        const boost::python::list      bindings)
+    {
+        std::list<pxr::SdfPath> mtlBindings;
+        try {
+            for (int i = 0; i < boost::python::len(bindings); ++i) {
+                const std::string pathStr = boost::python::extract<std::string>(bindings[i]);
+                if (!SdfPath::IsValidPathString(pathStr)) {
+                    auto msg = pathStr + std::string(" is not a valid prim path.");
+                    throw std::invalid_argument { msg };
+                }
+                mtlBindings.emplace_back(pathStr);
+            }
+        } catch (...) {
+            MaxUsd::Log::Error(
+                "ConvertToUSDMaterial() failed. Invalid material/prim binding list.");
+            return pxr::UsdShadeMaterial {};
+        }
+
+        Mtl* material = dynamic_cast<Mtl*>(Animatable::GetAnimByHandle(mtlHandle));
+        if (!material) {
+            MaxUsd::Log::Error("ConvertToUSDMaterial() failed. Invalid material handle.");
+            return UsdShadeMaterial {};
+        }
+        return MaxUsd::MaterialConverter::ConvertToUSDMaterial(
+            material, stage, filename, isUSDZ, path, options, mtlBindings);
+    }
+};
+
+void wrapMaterialConverter()
+{
+    boost::python::class_<MaterialConverterWrapper, boost::noncopyable> c(
+        "MaterialConverter", boost::python::no_init);
+    boost::python::scope s(c);
+    c.def(
+         "ConvertToUSDMaterial",
+         &MaterialConverterWrapper::ConvertToUSDMaterial,
+         (boost::python::arg("anim_mtl_handle"),
+          boost::python::arg("stage"),
+          boost::python::arg("filename"),
+          boost::python::arg("isUSDZ"),
+          boost::python::arg("primPath"),
+          boost::python::arg("options"),
+          boost::python::arg("bindings") = boost::python::list {}),
+         "Converts a 3dsMax material to a UsdShadeMaterial prim (note that MultiMtls are not "
+         "currently supported).")
+        .staticmethod("ConvertToUSDMaterial");
+}
\ No newline at end of file
diff --git a/src/python/wrapMaxSceneBuilderOptions.cpp b/src/python/wrapMaxSceneBuilderOptions.cpp
new file mode 100644
index 0000000..c096e83
--- /dev/null
+++ b/src/python/wrapMaxSceneBuilderOptions.cpp
@@ -0,0 +1,502 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapMaxSceneBuilderOptions.h"
+
+#include <MaxUsd/Utilities/OptionUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/pyEnum.h>
+#include <pxr/base/tf/pyResultConversions.h>
+#include <pxr/base/tf/pyStaticTokens.h>
+#include <pxr/base/tf/stringUtils.h>
+
+#include <QByteArray>
+#include <boost/python/class.hpp>
+#include <boost/python/return_value_policy.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+MaxSceneBuilderOptionsWrapper::MaxSceneBuilderOptionsWrapper() { SetDefaults(); }
+
+MaxSceneBuilderOptionsWrapper::MaxSceneBuilderOptionsWrapper(
+    const MaxUsd::MaxSceneBuilderOptions& importArgs)
+{
+    SetOptions(importArgs);
+}
+
+MaxSceneBuilderOptionsWrapper::MaxSceneBuilderOptionsWrapper(const std::string& json)
+{
+    const QByteArray jsonBytes(json.c_str());
+    SetOptions(MaxSceneBuilderOptions(MaxUsd::OptionUtils::DeserializeOptionsFromJson(jsonBytes)));
+}
+
+void MaxSceneBuilderOptionsWrapper::SetStageMaskPathsList(const boost::python::list& paths)
+{
+    std::vector<SdfPath> pathArray;
+    try {
+        for (int i = 0; i < len(paths); ++i) {
+            pathArray.push_back(SdfPath(boost::python::extract<std::string>(paths[i])));
+        }
+    } catch (const boost::python::error_already_set&) {
+        // rethrow error to Python
+        throw;
+    }
+    SetStageMaskPaths(pathArray);
+}
+
+std::string MaxSceneBuilderOptionsWrapper::GetLogPath() const
+{
+    return __super::GetLogPath().u8string();
+}
+
+void MaxSceneBuilderOptionsWrapper::SetLogPath(const std::string& logPath)
+{
+    __super::SetLogPath(logPath);
+}
+
+void MaxSceneBuilderOptionsWrapper::SetPrimvarChannelMappingDefaults()
+{
+    auto primvarMapping = GetPrimvarMappingOptions();
+    primvarMapping.SetDefaultPrimvarChannelMappings();
+    SetPrimvarMappingOptions(primvarMapping);
+}
+
+bool MaxSceneBuilderOptionsWrapper::GetImportUnmappedPrimvars() const
+{
+    return GetPrimvarMappingOptions().GetImportUnmappedPrimvars();
+}
+
+void MaxSceneBuilderOptionsWrapper::SetImportUnmappedPrimvars(bool importUnmappedPrimvars)
+{
+    auto primvarMapping = GetPrimvarMappingOptions();
+    primvarMapping.SetImportUnmappedPrimvars(importUnmappedPrimvars);
+    SetPrimvarMappingOptions(primvarMapping);
+}
+
+void MaxSceneBuilderOptionsWrapper::SetPrimvarChannel(const std::string& primvarName, int channel)
+{
+    // Will throw on unmapped channels.
+    if (!pxr::TfIsValidIdentifier(primvarName)) {
+        const auto errorMsg = primvarName
+            + std::string(" is not a valid primvar name. The name must start with a letter or "
+                          "underscore, and must "
+                          "contain only letters, underscores, and numerals..");
+        throw std::runtime_error(errorMsg);
+    }
+
+    if (!MaxUsd::IsValidChannel(channel)) {
+        const auto errorMsg
+            = std::to_string(channel)
+            + std::string(
+                  " is not a valid map channel. Valid channels are from -2 to 99 inclusively.");
+        throw std::runtime_error(errorMsg);
+    }
+    auto primvarMapping = GetPrimvarMappingOptions();
+    primvarMapping.SetPrimvarChannelMapping(primvarName, channel);
+    SetPrimvarMappingOptions(primvarMapping);
+}
+
+int MaxSceneBuilderOptionsWrapper::GetPrimvarChannel(const std::string& primvarName) const
+{
+    // Will throw on unmapped channels.
+    if (!pxr::TfIsValidIdentifier(primvarName)) {
+        const auto errorMsg = primvarName
+            + std::string(" is not a valid primvar name. The name must start with a letter or "
+                          "underscore, and must "
+                          "contain only letters, underscores, and numerals..");
+        throw std::runtime_error(errorMsg);
+    }
+
+    auto options = GetPrimvarMappingOptions();
+    if (!options.IsMappedPrimvar(primvarName)) {
+        return -1; // undefined
+    }
+
+    int channel = options.GetPrimvarChannelMapping(primvarName);
+    if (channel == MaxUsd::PrimvarMappingOptions::invalidChannel) {
+        return -1; // undefined
+    }
+    return channel;
+}
+
+std::vector<std::wstring> MaxSceneBuilderOptionsWrapper::GetMappedPrimvars() const
+{
+    std::vector<std::wstring> primvars;
+    GetPrimvarMappingOptions().GetMappedPrimvars(primvars);
+    return primvars;
+}
+
+bool MaxSceneBuilderOptionsWrapper::IsMappedPrimvar(const std::string& primvarName) const
+{
+    if (!pxr::TfIsValidIdentifier(primvarName)) {
+        const auto errorMsg = primvarName
+            + std::string(" is not a valid primvar name. The name must start with a letter or "
+                          "underscore, and must "
+                          "contain only letters, underscores, and numerals..");
+        throw std::runtime_error(errorMsg);
+    }
+    return GetPrimvarMappingOptions().IsMappedPrimvar(primvarName);
+}
+
+void MaxSceneBuilderOptionsWrapper::ClearMappedPrimvars()
+{
+    auto primvarMapping = GetPrimvarMappingOptions();
+    primvarMapping.ClearMappedPrimvars();
+    SetPrimvarMappingOptions(primvarMapping);
+}
+
+boost::python::dict MaxSceneBuilderOptionsWrapper::GetAllChaserArgs() const
+{
+    boost::python::dict allChaserArgs;
+    for (auto&& perChaser : MaxUsd::MaxSceneBuilderOptions::GetAllChaserArgs()) {
+        auto perChaserDict = boost::python::dict();
+        for (auto&& perItem : perChaser.second) {
+            perChaserDict[perItem.first] = perItem.second;
+        }
+        allChaserArgs[perChaser.first] = perChaserDict;
+    }
+    return allChaserArgs;
+}
+
+void MaxSceneBuilderOptionsWrapper::SetAllChaserArgsFromDict(boost::python::dict args)
+{
+    std::map<std::string, ChaserArgs> allArgs;
+    try {
+        auto items = args.items();
+        for (boost::python::ssize_t i = 0; i < boost::python::len(items); ++i) {
+            std::string chaserKey = boost::python::extract<std::string>(items[i][0]);
+
+            ChaserArgs chaserArgs;
+
+            auto paramDict = boost::python::dict { items[i][1] };
+
+            auto params = paramDict.items();
+            for (boost::python::ssize_t i = 0; i < boost::python::len(params); ++i) {
+                std::string name = boost::python::extract<std::string>(params[i][0]);
+                std::string value = boost::python::extract<std::string>(params[i][1]);
+                chaserArgs.insert({ name, value });
+            }
+            allArgs.insert({ chaserKey, chaserArgs });
+        }
+    } catch (...) {
+        throw std::invalid_argument(
+            std::string("Badly formed dictionary. Expecting the form : {'chaser' : {'param' : "
+                        "'val', 'param1' : 'val2'}, 'chaser2' : {'param2' : 'val3'}}."));
+    }
+    MaxSceneBuilderOptions::SetAllChaserArgs(allArgs);
+}
+
+void MaxSceneBuilderOptionsWrapper::SetAllChaserArgsFromList(boost::python::list args)
+{
+    static const std::string badArgMsg(
+        "Badly formed list. Expecting 3 elements per argument entry (<chaser>, <key>, <value>).");
+
+    if (boost::python::len(args) % 3) {
+        throw std::invalid_argument(badArgMsg);
+    }
+
+    std::map<std::string, ChaserArgs> allArgs;
+    try {
+
+        for (int i = 0; i < len(args); i = i + 3) {
+            const std::string chaser = boost::python::extract<std::string>(args[i]);
+            const std::string param = boost::python::extract<std::string>(args[i + 1]);
+            const std::string value = boost::python::extract<std::string>(args[i + 2]);
+            ChaserArgs&       chaserArgs = allArgs[chaser];
+            chaserArgs[param] = value;
+        }
+    } catch (...) {
+        throw std::invalid_argument(badArgMsg);
+    }
+    MaxSceneBuilderOptions::SetAllChaserArgs(allArgs);
+}
+
+void MaxSceneBuilderOptionsWrapper::SetShadingModes(boost::python::list args)
+{
+    static const std::string badArgMsg("Badly formed list. Expecting a vector of dictionaries, "
+                                       "each dictionary containing two entries, "
+                                       "'materialConversion' and 'mode'.");
+
+    ShadingModes shadingModes;
+    try {
+        for (int i = 0; i < len(args); ++i) {
+            boost::python::dict dict = boost::python::extract<boost::python::dict>(args[i]);
+            std::string         materialConversion
+                = boost::python::extract<std::string>(dict["materialConversion"]);
+            std::string  mode = boost::python::extract<std::string>(dict["mode"]);
+            VtDictionary shadingMode({ { "materialConversion", VtValue(materialConversion) },
+                                       { "mode", VtValue(mode) } });
+            shadingModes.push_back(shadingMode);
+        }
+    } catch (...) {
+        throw std::invalid_argument(badArgMsg);
+    }
+    __super::SetShadingModes(shadingModes);
+}
+
+std::string MaxSceneBuilderOptionsWrapper::Serialize()
+{
+    return MaxUsd::OptionUtils::SerializeOptionsToJson(*this);
+}
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::AllRange);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::CustomRange);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::EndTime);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxSceneBuilderOptions::ImportTimeMode::StartTime);
+};
+
+void wrapMaxSceneBuilderOptions()
+{
+    using namespace boost::python;
+
+    TfPyWrapEnum<MaxUsd::MaxSceneBuilderOptions::ImportTimeMode>("ImportTimeMode");
+    // defined in wrapUSDSceneBuilderOptions
+    // TfPyWrapEnum<MaxUsd::Log::Level>("LogLevel");
+
+    boost::python::class_<MaxSceneBuilderOptionsWrapper> c(
+        "MaxSceneBuilderOptions",
+        "The class MaxSceneBuilderOptions which exposes the import arguments from the current "
+        "import context.");
+    c.def(init<const MaxSceneBuilderOptionsWrapper&>())
+        .def(init<const std::string&>())
+        .def(
+            "GetTranslateMaterials",
+            &MaxUsd::MaxSceneBuilderOptions::GetTranslateMaterials,
+            boost::python::arg("self"),
+            "Checks if the materials are imported back into 3ds Max")
+        .def(
+            "SetStageInitialLoadSet",
+            &MaxUsd::MaxSceneBuilderOptions::SetStageInitialLoadSet,
+            boost::python::args("self", "load_state"),
+            "Sets the USD stage's initial load set to use for the import of content into 3ds Max")
+        .def(
+            "GetStageInitialLoadSet",
+            &MaxUsd::MaxSceneBuilderOptions::GetStageInitialLoadSet,
+            boost::python::arg("self"),
+            "Gets the USD Stage initial load set to use for the import of content into 3ds Max")
+        .def(
+            "SetStartTimeCode",
+            &MaxUsd::MaxSceneBuilderOptions::SetStartTimeCode,
+            boost::python::args("self", "time_code"),
+            "Set the Start Time Code of the time range the import of content into 3ds Max")
+        .def(
+            "GetStartTimeCode",
+            &MaxUsd::MaxSceneBuilderOptions::GetStartTimeCode,
+            boost::python::arg("self"),
+            "Return the Start Time Code value of the time range to use for the import of content "
+            "into 3ds Max")
+        .def(
+            "SetEndTimeCode",
+            &MaxUsd::MaxSceneBuilderOptions::SetEndTimeCode,
+            boost::python::args("self", "time_code"),
+            "Set the End Time Code of the time range the import of content into 3ds Max")
+        .def(
+            "GetEndTimeCode",
+            &MaxUsd::MaxSceneBuilderOptions::GetEndTimeCode,
+            boost::python::arg("self"),
+            "Return the End Time Code value of the time range to use for the import of content "
+            "into 3ds Max")
+        .def(
+            "GetTimeMode",
+            &MaxUsd::MaxSceneBuilderOptions::GetTimeMode,
+            boost::python::arg("self"),
+            "Return the ImportTimeMode value to use for the import of content into 3ds Max")
+        .def(
+            "SetTimeMode",
+            &MaxUsd::MaxSceneBuilderOptions::SetTimeMode,
+            boost::python::args("self", "time_mode"),
+            "Set ImportTimeMode value to use for the import of content into 3ds Max")
+        .def(
+            "SetShadingModes",
+            &MaxSceneBuilderOptionsWrapper::SetShadingModes,
+            boost::python::args("self", "preferred_material"),
+            "Sets the shading modes to use at import (see `ShadingMode` definition)")
+        .def(
+            "GetShadingModes",
+            &MaxUsd::MaxSceneBuilderOptions::GetShadingModes,
+            return_value_policy<TfPySequenceToList>(),
+            boost::python::arg("self"),
+            "Gets the shading modes to use at import.")
+        .def(
+            "SetPreferredMaterial",
+            &MaxUsd::MaxSceneBuilderOptions::SetPreferredMaterial,
+            boost::python::args("self", "preferred_material"),
+            "Sets the user preferred material to convert to at import.")
+        .def(
+            "GetPreferredMaterial",
+            &MaxUsd::MaxSceneBuilderOptions::GetPreferredMaterial,
+            boost::python::arg("self"),
+            "Gets the user preferred material to convert to at import.")
+        .def(
+            "SetStageMaskPaths",
+            &MaxSceneBuilderOptionsWrapper::SetStageMaskPathsList,
+            boost::python::args("self", "paths"),
+            "Sets the stage mask's paths. Only USD prims at or below these paths will be imported.")
+        .def(
+            "GetStageMaskPaths",
+            &MaxUsd::MaxSceneBuilderOptions::GetStageMaskPaths,
+            return_value_policy<TfPySequenceToList>(),
+            boost::python::arg("self"),
+            "Returns the currently configured stage mask paths. Only USD prims at or below these "
+            "paths will be imported.")
+        .def(
+            "SetMetaData",
+            &MaxUsd::MaxSceneBuilderOptions::SetMetaData,
+            boost::python::args("self", "filters"),
+            "Sets the list of MaxUsd::MetaData::MetaDataType that will be included during import")
+        .def(
+            "GetMetaData",
+            &MaxUsd::MaxSceneBuilderOptions::GetMetaData,
+            return_value_policy<TfPySequenceToSet>(),
+            boost::python::arg("self"),
+            "Returns the list of MaxUsd::MetaData::MetaDataType that will be included during "
+            "import.")
+        .def(
+            "GetLogPath",
+            &MaxSceneBuilderOptionsWrapper::GetLogPath,
+            boost::python::arg("self"),
+            "Gets the path to the log file.")
+        .def(
+            "SetLogPath",
+            &MaxSceneBuilderOptionsWrapper::SetLogPath,
+            boost::python::args("self", "logPath"),
+            "Sets the path to the log file.")
+        .def(
+            "GetLogLevel",
+            &MaxSceneBuilderOptionsWrapper::GetLogLevel,
+            boost::python::arg("self"),
+            "Gets the log level (maxUsd.Log.Level).")
+        .def(
+            "SetLogLevel",
+            &MaxSceneBuilderOptionsWrapper::SetLogLevel,
+            boost::python::args("self", "logLevel"),
+            "Sets the log level (maxUsd.Log.Level).")
+
+        // PrimvarMappingOptions helpers
+        .def(
+            "SetPrimvarChannelMappingDefaults",
+            &MaxSceneBuilderOptionsWrapper::SetPrimvarChannelMappingDefaults,
+            boost::python::arg("self"),
+            "Sets defaults primvar to channels mappings")
+        .def(
+            "GetImportUnmappedPrimvars",
+            &MaxSceneBuilderOptionsWrapper::GetImportUnmappedPrimvars,
+            boost::python::arg("self"),
+            "Gets the channel name from a primvar.")
+        .def(
+            "SetImportUnmappedPrimvars",
+            &MaxSceneBuilderOptionsWrapper::SetImportUnmappedPrimvars,
+            (boost::python::arg("self"), boost::python::arg("import_unmapped_primvars")),
+            "Sets whether or not to import primvars that are not explicitly mapped. If true, try "
+            "to find the most appropriate channels for each unmapped primvar, based on their "
+            "types.")
+        .def(
+            "SetPrimvarChannel",
+            &MaxSceneBuilderOptionsWrapper::SetPrimvarChannel,
+            (boost::python::arg("self"),
+             boost::python::arg("primvar"),
+             boost::python::arg("channel")),
+            "Sets the channel of a primvar")
+        .def(
+            "GetPrimvarChannel",
+            &MaxSceneBuilderOptionsWrapper::GetPrimvarChannel,
+            (boost::python::arg("self"), boost::python::arg("primvar")),
+            "Gets the channel name from a primvar.")
+        .def(
+            "GetMappedPrimvars",
+            &MaxSceneBuilderOptionsWrapper::GetMappedPrimvars,
+            boost::python::return_value_policy<TfPySequenceToList>(),
+            boost::python::arg("self"),
+            "Returns the list of all currently mapped primvars.")
+        .def(
+            "IsMappedPrimvar",
+            &MaxSceneBuilderOptionsWrapper::IsMappedPrimvar,
+            (boost::python::arg("self"), boost::python::arg("primvar")),
+            "Checks if a primvar is currently mapped to a channel.")
+        .def(
+            "ClearMappedPrimvars",
+            &MaxSceneBuilderOptionsWrapper::ClearMappedPrimvars,
+            boost::python::arg("self"),
+            "Clears all primvar mappings.")
+
+        .def(
+            "GetChaserNames",
+            &MaxUsd::MaxSceneBuilderOptions::GetChaserNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::arg("self")),
+            "Gets the list of import chasers to be called at USD import.")
+        .def(
+            "SetChaserNames",
+            &MaxUsd::MaxSceneBuilderOptions::SetChaserNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::args("self", "chaserNames")),
+            "Sets the list of import chasers to be called at USD import.")
+        .def(
+            "GetAllChaserArgs",
+            &MaxSceneBuilderOptionsWrapper::GetAllChaserArgs,
+            (boost::python::arg("self")),
+            "Gets the dictionary of import chasers with their specified arguments.")
+        .def(
+            "SetAllChaserArgs",
+            &MaxSceneBuilderOptionsWrapper::SetAllChaserArgsFromDict,
+            (boost::python::args("self", "allChaserArgs")),
+            "Sets the dictionary of import chasers with their specified arguments, from a "
+            "dictionary.")
+        .def(
+            "SetAllChaserArgs",
+            &MaxSceneBuilderOptionsWrapper::SetAllChaserArgsFromList,
+            (boost::python::args("self", "allChaserArgs")),
+            "Sets the dictionary of import chasers with their specified arguments, from a list.")
+        .def(
+            "GetContextNames",
+            &MaxUsd::MaxSceneBuilderOptions::GetContextNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::arg("self")),
+            "Gets the list of imports context being used at USD import.")
+        .def(
+            "SetContextNames",
+            &MaxUsd::MaxSceneBuilderOptions::SetContextNames,
+            (boost::python::arg("self")),
+            "Sets the list of import contexts being used at USD import.")
+        .def(
+            "GetUseProgressBar",
+            &MaxUsd::MaxSceneBuilderOptions::GetUseProgressBar,
+            (boost::python::arg("self")),
+            "Check if the 3ds Max progress bar should be used during export.")
+        .def(
+            "SetUseProgressBar",
+            &MaxUsd::MaxSceneBuilderOptions::SetUseProgressBar,
+            (boost::python::args("self", "useProgressBar")),
+            "Sets if the 3ds Max progress bar should be used during export.")
+        .def(
+            "SetDefaults",
+            &MaxUsd::MaxSceneBuilderOptions::SetDefaults,
+            (boost::python::arg("self")),
+            "Sets default options.")
+        .def(
+            "GetJobContextOptions",
+            &MaxUsd::MaxSceneBuilderOptions::GetJobContextOptions,
+            return_value_policy<TfPyMapToDictionary>(),
+            (boost::python::arg("self"), boost::python::arg("jobContext")),
+            "Gets the job context options for the given job context.")
+        .def(
+            "Serialize",
+            &MaxSceneBuilderOptionsWrapper::Serialize,
+            boost::python::arg("self"),
+            "Serialize the options to JSON format");
+}
\ No newline at end of file
diff --git a/src/python/wrapMaxSceneBuilderOptions.h b/src/python/wrapMaxSceneBuilderOptions.h
new file mode 100644
index 0000000..e80f448
--- /dev/null
+++ b/src/python/wrapMaxSceneBuilderOptions.h
@@ -0,0 +1,139 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/MaxSceneBuilderOptions.h>
+#include <MaxUsd/MappedAttributeBuilder.h>
+
+class MaxSceneBuilderOptionsWrapper : public MaxUsd::MaxSceneBuilderOptions
+{
+public:
+    MaxSceneBuilderOptionsWrapper();
+
+    /**
+     * \brief Constructor.
+     * \param importArgs the options to wrap.
+     */
+    MaxSceneBuilderOptionsWrapper(const MaxUsd::MaxSceneBuilderOptions& importArgs);
+
+    /**
+     * \brief Constructor from a Json formatted string.
+     * \param json the Json formatted string to create the options from.
+     */
+    MaxSceneBuilderOptionsWrapper(const std::string& json);
+
+    /**
+     * \brief Sets the stage mask's paths. Only USD prims at or below these paths will be imported.
+     * \param paths The mask paths.
+     */
+    void SetStageMaskPathsList(const boost::python::list& paths);
+
+    /**
+     * \brief Returns the export log path.
+     * \return the log's path.
+     */
+    std::string GetLogPath() const;
+
+    /**
+     * \brief Sets the export's log path.
+     * \param logPath The log path.
+     */
+    void SetLogPath(const std::string& logPath);
+
+    /**
+     * \brief Return the map of chasers and their respective arguments map
+     * \return The map of chasers' arguments
+     */
+    boost::python::dict GetAllChaserArgs() const;
+
+    /**
+     * \brief Sets all of the chasers' arguments from a dictionnary.
+     * {'chaser' : {'param' : 'val'}}
+     * \param args The chasers' args.
+     */
+    void SetAllChaserArgsFromDict(boost::python::dict args);
+
+    /**
+     * \brief Set all of the chasers' arguments from a list
+     * {'chaser', 'param1', 'val', 'chaser2', 'param', 'val'}
+     * \param args The chasers' args.
+     */
+    void SetAllChaserArgsFromList(boost::python::list args);
+
+    // PrimvarMappingOptions helpers
+    /**
+     * \brief Sets defaults primvar to channels mappings.
+     */
+    void SetPrimvarChannelMappingDefaults();
+
+    /**
+     * \brief Gets whether or not to import primvars that are not explicitly mapped.
+     * \return True if unmapped primvars should be imported, false otherwise.
+     */
+    bool GetImportUnmappedPrimvars() const;
+
+    /**
+     * \brief Sets whether or not to import primvars that are not explicitly mapped. If true, try to
+     * find the most appropriate channels for each unmapped primvar, based on their types.
+     * \param importUnmappedPrimvars If true, unmapped primvars will be imported.
+     */
+    void SetImportUnmappedPrimvars(bool importUnmappedPrimvars);
+
+    /**
+     * \brief Sets a primvar to channel mapping.
+     * \param primvar The name of the primvar.
+     * \param channel The channel this primvar should be imported to.
+     */
+    void SetPrimvarChannel(const std::string& primvarName, int channel);
+
+    /**
+     * \brief Gets the channel to which a primvar maps to.
+     * \param primvarName The name of the primvar for which to retrieve the target channel.
+     * \return The target channel for this primvar.
+     */
+    int GetPrimvarChannel(const std::string& primvarName) const;
+
+    /**
+     * \brief Returns the list of all currently mapped primvars.
+     * \param primvars The vector of primvar names to be filled.
+     */
+    std::vector<std::wstring> GetMappedPrimvars() const;
+
+    /**
+     * \brief Checks if a primvar is currently mapped to a channel.
+     * \param primvar The primvar to check.
+     * \return True if the primvar is mapped, false otherwise.
+     */
+    bool IsMappedPrimvar(const std::string& primvarName) const;
+
+    /**
+     * \brief Clears all primvar mappings.
+     */
+    void ClearMappedPrimvars();
+
+    /**
+     * Set the shading modes to use at import
+     * @param args A list of dictionaries, each dictionary is expected to contain two keys,
+     * 'materialConversion' and 'mode'
+     */
+    void SetShadingModes(boost::python::list args);
+
+    /**
+     * \brief Serialize the options to a Json formatted string.
+     * \return The Json formatted string representing the options.
+     */
+    std::string Serialize();
+};
diff --git a/src/python/wrapMeshConverter.cpp b/src/python/wrapMeshConverter.cpp
new file mode 100644
index 0000000..49f37f0
--- /dev/null
+++ b/src/python/wrapMeshConverter.cpp
@@ -0,0 +1,67 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+
+#include <pxr/base/tf/pyContainerConversions.h>
+
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class MeshConverterWrapper
+{
+    MeshConverterWrapper() = delete;
+    ~MeshConverterWrapper() = delete;
+
+public:
+    static pxr::UsdGeomMesh ConvertToUSDMesh(
+        ULONG                          nodeHandle,
+        pxr::UsdStagePtr               stage,
+        pxr::SdfPath                   path,
+        USDSceneBuilderOptionsWrapper& options,
+        bool                           applyOffsetTransform,
+        const MaxUsd::ExportTime&      time)
+    {
+        INode*                node = GetCOREInterface()->GetINodeByHandle(nodeHandle);
+        MaxUsd::MeshConverter converter;
+        return converter.ConvertToUSDMesh(
+            node,
+            stage,
+            path,
+            options.GetMeshConversionOptions(),
+            applyOffsetTransform,
+            options.GetResolvedTimeConfig().IsAnimated(),
+            time);
+    }
+};
+
+void wrapMeshConverter()
+{
+    boost::python::class_<MeshConverterWrapper, boost::noncopyable> c(
+        "MeshConverter", boost::python::no_init);
+    boost::python::scope s(c);
+    c.def(
+         "ConvertToUSDMesh",
+         &MeshConverterWrapper::ConvertToUSDMesh,
+         boost::python::args(
+             "node_handle", "stage", "path", "options", "applyOffsetTransform", "time"))
+        .staticmethod("ConvertToUSDMesh");
+}
diff --git a/src/python/wrapPrimReader.cpp b/src/python/wrapPrimReader.cpp
new file mode 100644
index 0000000..bdca81f
--- /dev/null
+++ b/src/python/wrapPrimReader.cpp
@@ -0,0 +1,536 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "PythonObjectRegistry.h"
+#include "wrapMaxSceneBuilderOptions.h"
+#include "wrapReadJobContext.h"
+
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/RegistryHelper.h>
+#include <MaxUsd/Translators/ShaderReader.h>
+#include <MaxUsd/Translators/ShaderReaderRegistry.h>
+#include <MaxUsd/Translators/ShadingModeImporter.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+
+#include <pxr/base/tf/pyContainerConversions.h>
+#include <pxr/base/tf/pyEnum.h>
+#include <pxr/base/tf/pyPolymorphic.h>
+#include <pxr/base/tf/pyResultConversions.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/overloads.hpp>
+#include <boost/python/pure_virtual.hpp>
+#include <boost/python/return_internal_reference.hpp>
+#include <boost/python/return_value_policy.hpp>
+#include <boost/python/wrapper.hpp>
+#include <inode.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdPrimReader
+//----------------------------------------------------------------------------------------------------------------------
+template <typename T = MaxUsdPrimReader>
+class PrimReaderWrapper
+    : public T
+    , public TfPyPolymorphic<MaxUsdPrimReader>
+{
+public:
+    typedef PrimReaderWrapper This;
+    typedef T                 base_t;
+
+    PrimReaderWrapper(const UsdPrim& prim, MaxUsdReadJobContext& args)
+        : T(prim, args)
+    {
+    }
+
+    static std::shared_ptr<This> New(uintptr_t createdWrapper)
+    {
+        return *((std::shared_ptr<This>*)createdWrapper);
+    }
+
+    virtual ~PrimReaderWrapper() = default;
+
+    bool Read() override { return this->template CallPureVirtual<bool>("Read")(); }
+
+    bool default_HasPostReadSubtree() const { return base_t::HasPostReadSubtree(); }
+    bool HasPostReadSubtree() const override
+    {
+        return this->template CallVirtual<bool>(
+            "HasPostReadSubtree", &This::default_HasPostReadSubtree)();
+    }
+
+    void default_PostReadSubtree() { base_t::PostReadSubtree(); }
+    void PostReadSubtree() override
+    {
+        this->template CallVirtual<>("PostReadSubtree", &This::default_PostReadSubtree)();
+    }
+
+    void default_InstanceCreated(const UsdPrim& prim, INT_PTR instance)
+    {
+        base_t::InstanceCreated(
+            prim, dynamic_cast<INode*>(MaxUsdReadJobContextWrapper::GetReferenceTarget(instance)));
+    }
+
+    void InstanceCreatedWrapped(const UsdPrim& prim, INT_PTR instance)
+    {
+        this->template CallVirtual<>("InstanceCreated", &This::default_InstanceCreated)(
+            prim, instance);
+    }
+    void InstanceCreated(const UsdPrim& prim, INode* instance) override
+    {
+        InstanceCreatedWrapped(prim, MaxUsdReadJobContextWrapper::GetAnimHandle(instance));
+    }
+
+    // Must be declared for python to be able to call the protected function _GetArgs in
+    // MaxUsdPrimReader
+    const UsdPrim&                GetUsdPrim() { return base_t::GetUsdPrim(); }
+    MaxSceneBuilderOptionsWrapper GetImportArgs()
+    {
+        return MaxSceneBuilderOptionsWrapper(base_t::GetArgs());
+    }
+
+    MaxUsdReadJobContextWrapper GetJobContext() const
+    {
+        return MaxUsdReadJobContextWrapper(base_t::GetJobContext());
+    }
+
+    // helper method to call MaxUsdTranslatorXformable::Read from Python
+    // \param correction Any correction to apply on the UsdPrim transform to properly position the
+    // 3ds Max node (identity by default)
+    void ReadXformable(boost::python::list correction = boost::python::list())
+    {
+        auto refTarget
+            = base_t::GetJobContext().GetMaxRefTargetHandle(base_t::GetUsdPrim().GetPath(), false);
+        if (refTarget) {
+            // identity matrix
+            Matrix3 correctionMatrix;
+            if (!correction.is_none() && len(correction) == 4) {
+                Point3 v[4];
+                for (int i = 0; i < 4; ++i) {
+                    const boost::python::list& row
+                        = boost::python::extract<boost::python::list>(correction[i]);
+                    if (len(row) != 3) {
+                        MaxUsd::Log::Warn("Malformed correction matrix. Defaulting to Identity.");
+                        break;
+                    }
+                    for (int j = 0; j < 3; ++j) {
+                        v[i][j] = boost::python::extract<float>(row[j]);
+                    }
+                }
+                correctionMatrix.Set(v[0], v[1], v[2], v[3]);
+            }
+
+            MaxUsdTranslatorXformable::Read(
+                base_t::GetUsdPrim(),
+                static_cast<INode*>(refTarget),
+                base_t::GetJobContext(),
+                correctionMatrix);
+        }
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdPrimReaderRegistry::Register. These will create
+        // python wrappers based on the latest class registered.
+        MaxUsdPrimReaderSharedPtr operator()(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return nullptr;
+            }
+            auto                  sptr = std::make_shared<This>(prim, jobCtx);
+            TfPyLock              pyLock;
+            boost::python::object instance = pyClass((uintptr_t)&sptr);
+            boost::python::incref(instance.ptr());
+            initialize_wrapper(instance.ptr(), sptr.get());
+            return sptr;
+        }
+
+        // We can have multiple function objects, this one adapts the CanImport function:
+        MaxUsdPrimReader::ContextSupport
+        operator()(const MaxUsd::MaxSceneBuilderOptions& args, const UsdPrim& importPrim)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return MaxUsdPrimReader::ContextSupport::Unsupported;
+            }
+            TfPyLock pyLock;
+            if (PyObject_HasAttrString(pyClass.ptr(), "CanImport"))
+
+            {
+                boost::python::object CanImport = pyClass.attr("CanImport");
+                PyObject*             callable = CanImport.ptr();
+                try {
+                    auto res = boost::python::call<int>(
+                        callable, MaxSceneBuilderOptionsWrapper(args), importPrim);
+                    return MaxUsdPrimReader::ContextSupport(res);
+                } catch (...) {
+                    MaxUsd::Log::Error("Unable to call the CanImport(importArgs, importPrim) "
+                                       "method of the registered PrimReader.");
+                }
+            }
+            return MaxUsdPrimReader::CanImport(args, importPrim);
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static FactoryFnWrapper
+        Register(boost::python::object cl, const std::string& typeName, bool& updated)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, typeName));
+            updated = classIndex == MaxUsdPythonObjectRegistry::UPDATED;
+            // Return a new factory function:
+            return FactoryFnWrapper { classIndex };
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& typeName)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, typeName));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& typeName)
+        {
+            return ClassName(cl) + "," + typeName + "," + ",PrimReader";
+        }
+    };
+
+    static void Register(boost::python::object cl, const std::string& typeName)
+    {
+        bool             updated = false;
+        FactoryFnWrapper fn = FactoryFnWrapper::Register(cl, typeName, updated);
+        if (!updated) {
+            auto type = TfType::FindByName(typeName);
+            MaxUsdPrimReaderRegistry::Register(type, fn, fn, true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const std::string& typeName)
+    {
+        FactoryFnWrapper::Unregister(cl, typeName);
+    }
+};
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdShaderReader
+//----------------------------------------------------------------------------------------------------------------------
+class ShaderReaderWrapper : public PrimReaderWrapper<MaxUsdShaderReader>
+{
+public:
+    typedef ShaderReaderWrapper This;
+    typedef MaxUsdShaderReader  base_t;
+
+    ShaderReaderWrapper(const UsdPrim& prim, MaxUsdReadJobContext& args)
+        : PrimReaderWrapper<MaxUsdShaderReader>(prim, args)
+    {
+    }
+
+    static std::shared_ptr<This> New(uintptr_t createdWrapper)
+    {
+        return *((std::shared_ptr<This>*)createdWrapper);
+    }
+
+    virtual ~ShaderReaderWrapper() { _downstreamReader = nullptr; }
+
+    const UsdPrim&                GetUsdPrim() { return base_t::GetUsdPrim(); }
+    MaxSceneBuilderOptionsWrapper GetImportArgs()
+    {
+        return MaxSceneBuilderOptionsWrapper(base_t::GetArgs());
+    }
+
+    INT_PTR default_GetCreatedMaterial(
+        const MaxUsdShadingModeImportContext& context,
+        const UsdPrim&                        prim) const
+    {
+        return MaxUsdReadJobContextWrapper::GetAnimHandle(
+            base_t::GetCreatedMaterial(context, prim));
+    }
+    INT_PTR GetCreatedMaterialAnimHandle(
+        const MaxUsdShadingModeImportContext& context,
+        const UsdPrim&                        prim) const
+    {
+        return this->CallVirtual<INT_PTR>(
+            "GetCreatedMaterialAnimHandle", &This::default_GetCreatedMaterial)(context, prim);
+    }
+
+    void RegisterCreatedMaterial(const SdfPath& path, INT_PTR animHandle)
+    {
+        ReferenceTarget* ref = MaxUsdReadJobContextWrapper::GetReferenceTarget(animHandle);
+        if (ref) {
+            base_t::GetJobContext().RegisterNewMaxRefTargetHandle(path, ref);
+        }
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdShaderReaderRegistry::Register. These will create
+        // python wrappers based on the latest class registered.
+        MaxUsdPrimReaderSharedPtr operator()(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return nullptr;
+            }
+            auto                  sptr = std::make_shared<This>(prim, jobCtx);
+            TfPyLock              pyLock;
+            boost::python::object instance = pyClass((uintptr_t)&sptr);
+            boost::python::incref(instance.ptr());
+            initialize_wrapper(instance.ptr(), sptr.get());
+            return sptr;
+        }
+
+        // We can have multiple function objects, this one adapts the CanImport function:
+        MaxUsdShaderReader::ContextSupport operator()(const MaxUsd::MaxSceneBuilderOptions& args)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return MaxUsdShaderReader::ContextSupport::Unsupported;
+            }
+            TfPyLock pyLock;
+            if (PyObject_HasAttrString(pyClass.ptr(), "CanImport"))
+
+            {
+                boost::python::object CanImport = pyClass.attr("CanImport");
+                PyObject*             callable = CanImport.ptr();
+                try {
+                    auto res
+                        = boost::python::call<int>(callable, MaxSceneBuilderOptionsWrapper(args));
+                    return MaxUsdShaderReader::ContextSupport(res);
+                } catch (...) {
+                    MaxUsd::Log::Error("Unable to call the CanImport(importArgs) method of the "
+                                       "registered ShaderReader.");
+                }
+            }
+            return MaxUsdShaderReader::CanImport(args);
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static FactoryFnWrapper
+        Register(boost::python::object cl, const std::string& usdShaderId, bool& updated)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, usdShaderId));
+            updated = classIndex == MaxUsdPythonObjectRegistry::UPDATED;
+            // Return a new factory function:
+            return FactoryFnWrapper { classIndex };
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& usdShaderId)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, usdShaderId));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& usdShaderId)
+        {
+            return ClassName(cl) + "," + usdShaderId + "," + ",ShaderReader";
+        }
+    };
+
+    static void Register(boost::python::object cl, const TfToken& usdShaderId)
+    {
+        bool             updated = false;
+        FactoryFnWrapper fn = FactoryFnWrapper::Register(cl, usdShaderId, updated);
+        if (!updated) {
+            MaxUsdShaderReaderRegistry::Register(usdShaderId, fn, fn, true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const TfToken& usdShaderId)
+    {
+        FactoryFnWrapper::Unregister(cl, usdShaderId);
+    }
+
+    std::shared_ptr<MaxUsdShaderReader> _downstreamReader;
+};
+
+//----------------------------------------------------------------------------------------------------------------------
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(MaxUsdPrimReader::ContextSupport::Supported, "Supported");
+    TF_ADD_ENUM_NAME(MaxUsdPrimReader::ContextSupport::Fallback, "Fallback");
+    TF_ADD_ENUM_NAME(MaxUsdPrimReader::ContextSupport::Unsupported, "Unsupported");
+}
+
+BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(
+    readXformable_overload,
+    PrimReaderWrapper::ReadXformable,
+    0,
+    1)
+
+void wrapPrimReader()
+{
+    using namespace boost::python;
+    typedef MaxUsdPrimReader This;
+
+    class_<PrimReaderWrapper<>, boost::noncopyable> c("PrimReader", no_init);
+
+    scope s(c);
+    TfPyWrapEnum<MaxUsdPrimReader::ContextSupport>();
+
+    c.def("__init__", make_constructor(&PrimReaderWrapper<>::New))
+        .def(
+            "Read",
+            pure_virtual(&MaxUsdPrimReader::Read),
+            (boost::python::arg("self")),
+            "Method called to import a USD prim.")
+        .def(
+            "HasPostReadSubtree",
+            &This::HasPostReadSubtree,
+            &PrimReaderWrapper<>::default_HasPostReadSubtree,
+            (boost::python::arg("self")),
+            "Specifies whether this prim reader specifies a PostReadSubtree step.")
+        .def(
+            "PostReadSubtree",
+            &This::PostReadSubtree,
+            &PrimReaderWrapper<>::default_PostReadSubtree,
+            (boost::python::arg("self")),
+            "An additional import step that runs after all descendants of this prim have been "
+            "processed.")
+        .def(
+            "InstanceCreated",
+            &PrimReaderWrapper<>::InstanceCreatedWrapped,
+            &PrimReaderWrapper<>::default_InstanceCreated,
+            (boost::python::args("self", "prim", "anim_handle")),
+            "Method called when a 3ds Max instance is created (cloned) from a Node which "
+            "originally was created using this reader instance.")
+        .def(
+            "GetUsdPrim",
+            &PrimReaderWrapper<>::GetUsdPrim,
+            return_internal_reference<>(),
+            (boost::python::arg("self")),
+            "Get the UsdPrim on which the reader is acting.")
+        .def(
+            "GetArgs",
+            &PrimReaderWrapper<>::GetImportArgs,
+            (boost::python::arg("self")),
+            "Get the current import arguments in effect.")
+        .def(
+            "GetJobContext",
+            &PrimReaderWrapper<>::GetJobContext,
+            (boost::python::arg("self")),
+            "Get the read job context in effect.")
+
+        .def(
+            "ReadXformable",
+            &PrimReaderWrapper<>::ReadXformable,
+            readXformable_overload(
+                (boost::python::arg("correction_matrix") = boost::python::object()),
+                "Reads xform attributes from xformable and converts them into 3ds Max transform "
+                "values. The `correction_matrix` is a correction ([[U],[V],[N],[T]] see Matrix3) "
+                "to apply on the UsdPrim transform to properly position the 3ds Max node when "
+                "there is an orientation difference between the two worlds."))
+        .def(
+            "Register",
+            &PrimReaderWrapper<>::Register,
+            (boost::python::args("prim_reader_class", "usd_prim_id")),
+            "Static method to register an PrimReader into the PrimReaderRegistry.")
+        .staticmethod("Register")
+        .def("Unregister", &PrimReaderWrapper<>::Unregister)
+        .staticmethod("Unregister");
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+void wrapShaderReader()
+{
+    using namespace boost::python;
+    typedef MaxUsdShaderReader This;
+
+    class_<ShaderReaderWrapper, bases<PrimReaderWrapper<>>, boost::noncopyable> c(
+        "ShaderReader",
+        "Base class for USD prim readers that import USD shader prims as 3ds Max materials.\n"
+        "A ShaderReader instance is created for each material needing translation.",
+        no_init);
+
+    scope s(c);
+
+    c.def("__init__", make_constructor(&ShaderReaderWrapper::New))
+        .def(
+            "Read",
+            pure_virtual(&MaxUsdPrimReader::Read),
+            (boost::python::arg("self")),
+            "Method called to properly import the material.")
+        .def(
+            "GetCreatedMaterial",
+            &ShaderReaderWrapper::GetCreatedMaterialAnimHandle,
+            &ShaderReaderWrapper::default_GetCreatedMaterial,
+            (boost::python::args("context", "prim")),
+            "Get the MAXScript AnimHandle on the material created for the given Prim.")
+        .def(
+            "RegisterCreatedMaterial",
+            &ShaderReaderWrapper::RegisterCreatedMaterial,
+            (boost::python::args("self", "path", "anim_handle")),
+            "Record 3ds Max animHandle as being created for the prim path")
+        .def(
+            "GetUsdPrim",
+            &ShaderReaderWrapper::GetUsdPrim,
+            return_internal_reference<>(),
+            (boost::python::arg("self")),
+            "Get the UsdPrim on which the reader is acting.")
+        .def(
+            "GetArgs",
+            &ShaderReaderWrapper::GetImportArgs,
+            (boost::python::arg("self")),
+            "Get the current import arguments in effect.")
+        .def(
+            "Register",
+            &ShaderReaderWrapper::Register,
+            (boost::python::args("shader_reader_class", "usd_shader_id")),
+            "Static method to register an ShaderReader into the ShaderReaderRegistry.")
+        .staticmethod("Register")
+        .def("Unregister", &ShaderReaderWrapper::Unregister)
+        .staticmethod("Unregister");
+}
\ No newline at end of file
diff --git a/src/python/wrapPrimWriter.cpp b/src/python/wrapPrimWriter.cpp
new file mode 100644
index 0000000..1b8ddf2
--- /dev/null
+++ b/src/python/wrapPrimWriter.cpp
@@ -0,0 +1,439 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+#include "wrapInterval.h"
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+
+#include <pxr/base/tf/api.h>
+#include <pxr/base/tf/pyContainerConversions.h>
+#include <pxr/base/tf/pyEnum.h>
+#include <pxr/base/tf/pyPolymorphic.h>
+#include <pxr/base/tf/registryManager.h>
+
+#include <Python.h>
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/return_value_policy.hpp>
+#include <boost/python/wrapper.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdPrimWriter
+//----------------------------------------------------------------------------------------------------------------------
+class PrimWriterWrapper
+    : public MaxUsdPrimWriter
+    , public TfPyPolymorphic<MaxUsdPrimWriter>
+{
+public:
+    typedef PrimWriterWrapper This;
+
+    PrimWriterWrapper(const MaxUsdWriteJobContext& jobCtx, INode* node)
+        : MaxUsdPrimWriter(jobCtx, node)
+    {
+    }
+
+    static std::shared_ptr<This> New(uintptr_t createdWrapper)
+    {
+        return *((std::shared_ptr<This>*)createdWrapper);
+    }
+
+    ~PrimWriterWrapper() override = default;
+
+    const UsdStage& GetUsdStage() const { return *get_pointer(MaxUsdPrimWriter::GetUsdStage()); }
+
+    const ULONG GetNodeHandle() const { return MaxUsdPrimWriter::GetNode()->GetHandle(); }
+
+    bool
+    default_Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time)
+    {
+        return MaxUsdPrimWriter::Write(targetPrim, applyOffsetTransform, time);
+    }
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override
+    {
+        return this->template CallVirtual<>("Write", &This::default_Write)(
+            targetPrim, applyOffsetTransform, time);
+    }
+
+    bool default_PostExport(UsdPrim& targetPrim)
+    {
+        return MaxUsdPrimWriter::PostExport(targetPrim);
+    }
+    bool PostExport(UsdPrim& targetPrim) override
+    {
+        return this->template CallVirtual<>("PostExport", &This::default_PostExport)(targetPrim);
+    }
+
+    TfToken default_GetPrimType() { return MaxUsdPrimWriter::GetPrimType(); }
+    TfToken GetPrimType() override
+    {
+        return this->template CallVirtual<>("GetPrimType", &This::default_GetPrimType)();
+    }
+
+    std::string default_GetPrimName(const std::string& suggestedName)
+    {
+        return MaxUsdPrimWriter::GetPrimName(suggestedName);
+    }
+    std::string GetPrimName(const std::string& suggestedName) override
+    {
+        return this->template CallVirtual<>("GetPrimName", &This::default_GetPrimName)(
+            suggestedName);
+    }
+
+    TfToken default_GetObjectPrimSuffix() { return MaxUsdPrimWriter::GetObjectPrimSuffix(); }
+    TfToken GetObjectPrimSuffix() override
+    {
+        return this->template CallVirtual<>(
+            "GetObjectPrimSuffix", &This::default_GetObjectPrimSuffix)();
+    }
+
+    bool default_HandlesObjectOffsetTransform()
+    {
+        return MaxUsdPrimWriter::HandlesObjectOffsetTransform();
+    }
+    bool HandlesObjectOffsetTransform() override
+    {
+        return this->template CallVirtual<>(
+            "HandlesObjectOffsetTransform", &This::default_HandlesObjectOffsetTransform)();
+    }
+
+    IntervalWrapper default_GetValidityInterval(double frame)
+    {
+        return IntervalWrapper(
+            MaxUsdPrimWriter::GetValidityInterval(MaxUsd::GetTimeValueFromFrame(frame)));
+    }
+    Interval GetValidityInterval(const TimeValue& time) override
+    {
+        return this->template CallVirtual<>(
+            "GetValidityInterval",
+            &This::default_GetValidityInterval)(MaxUsd::GetFrameFromTimeValue(time));
+    }
+
+    MaxUsd::XformSplitRequirement default_RequiresXformPrim()
+    {
+        return MaxUsdPrimWriter::RequiresXformPrim();
+    }
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override
+    {
+        return this->template CallVirtual<>(
+            "RequiresXformPrim", &This::default_RequiresXformPrim)();
+    }
+
+    MaxUsd::MaterialAssignRequirement default_RequiresMaterialAssignment()
+    {
+        return MaxUsdPrimWriter::RequiresMaterialAssignment();
+    }
+    MaxUsd::MaterialAssignRequirement RequiresMaterialAssignment() override
+    {
+        return this->template CallVirtual<>(
+            "RequiresMaterialAssignment", &This::default_RequiresMaterialAssignment)();
+    }
+
+    MaxUsd::InstancingRequirement default_RequiresInstancing()
+    {
+        return MaxUsdPrimWriter::RequiresInstancing();
+    }
+    MaxUsd::InstancingRequirement RequiresInstancing() override
+    {
+        return this->template CallVirtual<>(
+            "RequiresInstancing", &This::default_RequiresInstancing)();
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdPrimWriterRegistry::Register. These will create
+        // python wrappers based on the latest class registered.
+        MaxUsdPrimWriterSharedPtr operator()(const MaxUsdWriteJobContext& jobCtx, INode* node)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            auto                  sptr = std::make_shared<This>(jobCtx, node);
+            TfPyLock              pyLock;
+            boost::python::object instance = pyClass((uintptr_t)&sptr);
+            boost::python::incref(instance.ptr());
+            initialize_wrapper(instance.ptr(), sptr.get());
+            return sptr;
+        }
+
+        // We can have multiple function objects, this one adapts the CanExport function:
+        ContextSupport operator()(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return ContextSupport::Unsupported;
+            }
+            TfPyLock pyLock;
+
+            std::string canExport = "CanExport";
+
+            if (!PyObject_HasAttrString(pyClass.ptr(), canExport.c_str())) {
+                MaxUsd::Log::Error(
+                    "Registered python PrimWriter \"{}\" has no suitable CanExport(node, "
+                    "exportArgs) method.",
+                    boost::python::extract<std::string>(pyClass.attr("__name__"))());
+                return ContextSupport::Unsupported;
+            }
+
+            boost::python::object CanExport = pyClass.attr("CanExport");
+            PyObject*             callable = CanExport.ptr();
+            try {
+                auto res = boost::python::call<int>(
+                    callable, node->GetHandle(), USDSceneBuilderOptionsWrapper(exportArgs));
+                return ContextSupport(res);
+            } catch (...) {
+                MaxUsd::Log::Error("Unable to call the CanExport(node, exportArgs) method of the "
+                                   "registered PrimWriter.");
+            }
+            return ContextSupport::Unsupported;
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static FactoryFnWrapper
+        Register(boost::python::object cl, const std::string& usdPrimWriterId, bool& updated)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, usdPrimWriterId));
+            updated = classIndex == MaxUsdPythonObjectRegistry::UPDATED;
+            // Return a new factory function:
+            return FactoryFnWrapper { classIndex };
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& usdPrimWriterId)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, usdPrimWriterId));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& usdPrimWriterId)
+        {
+            return ClassName(cl) + "," + usdPrimWriterId + "," + ",PrimWriter";
+        }
+    };
+
+    static void Register(boost::python::object cl, const TfToken& usdPrimWriterId)
+    {
+        bool             updated = false;
+        FactoryFnWrapper fn = FactoryFnWrapper::Register(cl, usdPrimWriterId, updated);
+        if (!updated) {
+            MaxUsdPrimWriterRegistry::Register(usdPrimWriterId, fn, fn, true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const TfToken& usdPrimWriterId)
+    {
+        FactoryFnWrapper::Unregister(cl, usdPrimWriterId);
+        MaxUsdPrimWriterRegistry::Unregister(usdPrimWriterId);
+    }
+};
+
+namespace {
+
+// This class is used to expose protected members of MaxUsdPrimWriter to Python
+class PrimWriterAllowProtected : public MaxUsdPrimWriter
+{
+    typedef MaxUsdPrimWriter base_t;
+
+public:
+    USDSceneBuilderOptionsWrapper GetExportArgs() const
+    {
+        return USDSceneBuilderOptionsWrapper(base_t::GetExportArgs());
+    }
+
+    std::string GetFilename() const { return base_t::GetFilename(); }
+};
+
+USDSceneBuilderOptionsWrapper unprotect_GetExportArgs(MaxUsdPrimWriter& pw)
+{
+    return reinterpret_cast<PrimWriterAllowProtected&>(pw).GetExportArgs();
+}
+
+std::string unprotect_GetFilename(MaxUsdPrimWriter& pw)
+{
+    return reinterpret_cast<PrimWriterAllowProtected&>(pw).GetFilename();
+}
+} // namespace
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(MaxUsdPrimWriter::ContextSupport::Supported, "Supported");
+    TF_ADD_ENUM_NAME(MaxUsdPrimWriter::ContextSupport::Fallback, "Fallback");
+    TF_ADD_ENUM_NAME(MaxUsdPrimWriter::ContextSupport::Unsupported, "Unsupported");
+
+    TF_ADD_ENUM_NAME(MaxUsd::XformSplitRequirement::ForOffsetObjects, "ForOffsetObjects");
+    TF_ADD_ENUM_NAME(MaxUsd::XformSplitRequirement::Always, "Always");
+    TF_ADD_ENUM_NAME(MaxUsd::XformSplitRequirement::Never, "Never");
+
+    TF_ADD_ENUM_NAME(MaxUsd::MaterialAssignRequirement::Default, "Default");
+    TF_ADD_ENUM_NAME(MaxUsd::MaterialAssignRequirement::NoAssignment, "NoAssignment");
+
+    TF_ADD_ENUM_NAME(MaxUsd::InstancingRequirement::Default, "Default");
+    TF_ADD_ENUM_NAME(MaxUsd::InstancingRequirement::NoInstancing, "NoInstancing");
+}
+
+void wrapPrimWriter()
+{
+    boost::python::class_<PrimWriterWrapper, boost::noncopyable> c(
+        "PrimWriter",
+        "PrimWriter base class from which object/prim writers need to inherit from.\n"
+        "The PrimWriter is only responsible for providing translation of the 3ds Max Object "
+        "referenced by the received Node. It should therefor not attempt to handle instancing, "
+        "material assignment, and the transform of the Node itself. Instancing is handled by the "
+        "calling code - if an object is instanced across multiple nodes, the PrimWriter is only "
+        "called once, on the first node referencing the instanced object. The required Xform prim "
+        "hierarchy is already generated. Similarly, the Node's transform is applied by the calling "
+        "code, on the UsdGeomXformable prim built by the PrimWriter, *after* it is run. If the USD "
+        "prim is *not* a UsdGeomXformable, a warning is raised, but it doesn't prevent the export "
+        "from continuing.",
+        boost::python::no_init);
+
+    boost::python::scope s(c);
+
+    TfPyWrapEnum<MaxUsdPrimWriter::ContextSupport>();
+    TfPyWrapEnum<MaxUsd::XformSplitRequirement>();
+    TfPyWrapEnum<MaxUsd::MaterialAssignRequirement>();
+    TfPyWrapEnum<MaxUsd::InstancingRequirement>();
+
+    c.def("__init__", boost::python::make_constructor(&PrimWriterWrapper::New))
+        .def(
+            "Write",
+            &PrimWriterWrapper::default_Write,
+            (boost::python::args("self", "target_prim", "apply_offset_transform")),
+            "Method for writing the prim's attribute for the given context. This is where the "
+            "translation from the 3ds Max object to the USD prim happens.")
+        .def(
+            "PostExport",
+            &PrimWriterWrapper::default_PostExport,
+            (boost::python::args("self", "target_prim")),
+            "Method called after all other prims have been written to the stage.")
+        .def(
+            "GetNodeHandle",
+            &PrimWriterWrapper::GetNodeHandle,
+            (boost::python::args("self")),
+            "The handle of the node that will be exported by this prim writer.")
+        .def(
+            "GetPrimType",
+            &PrimWriterWrapper::default_GetPrimType,
+            (boost::python::args("self")),
+            "The prim type you are writing to. For performance reasons, all prims get created "
+            "ahead of time in a single `SdfChangeBlock`. This means the prim writers are not "
+            "responsible for creating the prims. The type specified here is mostly a hint for that "
+            "first creation pass and, if required, it can be overridden from the `Write()` method "
+            "(by defining a prim at the same path with a different type). Unless you always force "
+            "the creation of an Xform prim (see `RequireXformPrim()`), you should return an "
+            "Xformable type here; otherwise, it is not possible to apply the node's transform onto "
+            "the prim later (an error will be raised in this scenario).")
+        .def(
+            "GetPrimName",
+            &PrimWriterWrapper::default_GetPrimName,
+            (boost::python::args("self", "suggested_name")),
+            "Returns the name that should be used for the prim. The base implementation should be "
+            "sufficient in most cases, unless prim writers want to customize the prim's name. If "
+            "so, it is their responsibility to ensure that the given name is unique amongst "
+            "siblings. The `suggestedName` is what the base implementation uses, from the node's "
+            "name, and uniqueness amongst siblings is ensured.")
+        .def(
+            "GetObjectPrimSuffix",
+            &PrimWriterWrapper::default_GetObjectPrimSuffix,
+            (boost::python::args("self")),
+            "In a few scenarios, you need two prims to properly represent an INode. One for its "
+            "transform, and one for the object it references (for example, in the case of a "
+            "non-identity object offset transform, it must not inherit the transform, so you "
+            "cannot use a single prim for the INode). When you do need to perform such a split, "
+            "the object's prim has the same name as the node's prim, with an added suffix - the "
+            "string returned here. Defaults to \"Object\".")
+        .def(
+            "GetValidityInterval",
+            &PrimWriterWrapper::default_GetValidityInterval,
+            (boost::python::args("self", "frame")),
+            "Returns the validity interval of the exported prim at the given 3dsMax frame. In "
+            "other words, until when what we export remains valid. This will guide the exporter in "
+            "figuring out what frames need to be exported for this object. The default "
+            "implementation return the validity interval of the object itself, which would "
+            "basically mean that the Write(..) method would be called any time any property of the "
+            "object changes.")
+        .def(
+            "HandlesObjectOffsetTransform",
+            &PrimWriterWrapper::default_HandlesObjectOffsetTransform,
+            (boost::python::arg("self")),
+            "Choose whether to handle the object offset transform in the Write() manually or not.")
+        .def(
+            "RequiresXformPrim",
+            &PrimWriterWrapper::default_RequiresXformPrim,
+            (boost::python::arg("self")),
+            "Returns the requirement to split the object from its transform in the scene.")
+        .def(
+            "RequiresMaterialAssignment",
+            &PrimWriterWrapper::default_RequiresMaterialAssignment,
+            (boost::python::arg("self")),
+            "Returns the material assignment requirement for the object.")
+        .def(
+            "RequiresInstancing",
+            &PrimWriterWrapper::default_RequiresInstancing,
+            (boost::python::arg("self")),
+            "Returns whether default instancing of the objects handled by the writer should be "
+            "used.")
+        .def(
+            "GetExportArgs",
+            &::unprotect_GetExportArgs,
+            (boost::python::arg("self")),
+            "Get the current global export args in effect.")
+        .def(
+            "GetFilename",
+            &::unprotect_GetFilename,
+            (boost::python::arg("self")),
+            "Get the filename and path of where the stage is written on disk.")
+        .def(
+            "GetNodesToPrims",
+            &MaxUsdPrimWriter::GetNodesToPrims,
+            (boost::python::arg("self")),
+            "Get a dictionary the nodes being exported and their respective prims.")
+        .def(
+            "GetUsdStage",
+            &MaxUsdPrimWriter::GetUsdStage,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the USD stage being written to.")
+        .def(
+            "Register",
+            &PrimWriterWrapper::Register,
+            (boost::python::args("derived_primwriter_class", "primwriter_given_name")),
+            "Static method to register a PrimWriter into the PrimWriterRegistry.")
+        .staticmethod("Register")
+        .def("Unregister", &PrimWriterWrapper::Unregister)
+        .staticmethod("Unregister");
+}
diff --git a/src/python/wrapReadJobContext.cpp b/src/python/wrapReadJobContext.cpp
new file mode 100644
index 0000000..7771619
--- /dev/null
+++ b/src/python/wrapReadJobContext.cpp
@@ -0,0 +1,84 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapReadJobContext.h"
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+MaxUsdReadJobContextWrapper::MaxUsdReadJobContextWrapper(MaxUsdReadJobContext& context)
+    : readContext(context)
+{
+}
+
+INT_PTR MaxUsdReadJobContextWrapper::GetNodeHandle(const SdfPath& path, bool findAncestors) const
+{
+    return GetAnimHandle(readContext.GetMaxRefTargetHandle(path, findAncestors));
+}
+
+void MaxUsdReadJobContextWrapper::RegisterNodeHandle(const SdfPath& path, INT_PTR maxNodeHandle)
+{
+    readContext.RegisterNewMaxRefTargetHandle(path, GetReferenceTarget(maxNodeHandle));
+}
+
+bool MaxUsdReadJobContextWrapper::GetPruneChildren() const
+{
+    return readContext.GetPruneChildren();
+}
+
+void MaxUsdReadJobContextWrapper::SetPruneChildren(bool prune)
+{
+    readContext.SetPruneChildren(prune);
+}
+
+const UsdStageRefPtr MaxUsdReadJobContextWrapper::GetStage() const
+{
+    return readContext.GetStage();
+}
+
+INT_PTR MaxUsdReadJobContextWrapper::GetAnimHandle(ReferenceTarget* ref)
+{
+    if (ref) {
+        return Animatable::GetHandleByAnim(ref);
+    }
+    return 0;
+}
+
+ReferenceTarget* MaxUsdReadJobContextWrapper::GetReferenceTarget(INT_PTR handle)
+{
+    return dynamic_cast<ReferenceTarget*>(Animatable::GetAnimByHandle(handle));
+}
+
+void wrapReadJobContext()
+{
+    using namespace boost::python;
+
+    class_<MaxUsdReadJobContextWrapper>("PrimReaderContext", no_init)
+        .def(
+            "GetNodeHandle",
+            &MaxUsdReadJobContextWrapper::GetNodeHandle,
+            (boost::python::args("context", "prim")),
+            "Get the MAXScript AnimHandle on the node created for the given Prim.")
+        .def(
+            "RegisterCreatedNode",
+            &MaxUsdReadJobContextWrapper::RegisterNodeHandle,
+            (boost::python::args("self", "path", "anim_handle")),
+            "Record 3ds Max node animHandle created for the prim path")
+        .def("GetPruneChildren", &MaxUsdReadJobContext::GetPruneChildren)
+        .def("SetPruneChildren", &MaxUsdReadJobContext::SetPruneChildren)
+        .def("GetStage", &MaxUsdReadJobContextWrapper::GetStage);
+}
\ No newline at end of file
diff --git a/src/python/wrapReadJobContext.h b/src/python/wrapReadJobContext.h
new file mode 100644
index 0000000..a906384
--- /dev/null
+++ b/src/python/wrapReadJobContext.h
@@ -0,0 +1,51 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/ReadJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdReadJobContextWrapper
+{
+public:
+    MaxUsdReadJobContextWrapper(MaxUsdReadJobContext& context);
+
+    INT_PTR GetNodeHandle(const SdfPath& path, bool findAncestors) const;
+
+    /// \brief Record maxNode prim as being created path.
+    void RegisterNodeHandle(const SdfPath& path, INT_PTR maxNodeHandle);
+
+    bool GetPruneChildren() const;
+
+    void SetPruneChildren(bool prune);
+
+    const UsdStageRefPtr GetStage() const;
+
+    static INT_PTR GetAnimHandle(ReferenceTarget* ref);
+
+    static ReferenceTarget* GetReferenceTarget(INT_PTR handle);
+
+    operator const MaxUsdReadJobContext&() const { return readContext; }
+
+    operator MaxUsdReadJobContext&() { return readContext; }
+
+private:
+    MaxUsdReadJobContextWrapper() = delete;
+    MaxUsdReadJobContext& readContext;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/python/wrapShaderWriter.cpp b/src/python/wrapShaderWriter.cpp
new file mode 100644
index 0000000..e6f1d53
--- /dev/null
+++ b/src/python/wrapShaderWriter.cpp
@@ -0,0 +1,400 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "pythonObjectRegistry.h"
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Translators/ShaderWriter.h>
+#include <MaxUsd/Translators/ShaderWriterRegistry.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+
+#include <pxr/base/tf/api.h>
+#include <pxr/base/tf/pyContainerConversions.h>
+#include <pxr/base/tf/pyEnum.h>
+#include <pxr/base/tf/pyPolymorphic.h>
+#include <pxr/base/tf/registryManager.h>
+
+#include <maxscript/kernel/value.h>
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/make_constructor.hpp>
+#include <boost/python/return_internal_reference.hpp>
+#include <boost/python/return_value_policy.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+//----------------------------------------------------------------------------------------------------------------------
+/// \brief  boost python binding for the MaxUsdShaderWriter
+//----------------------------------------------------------------------------------------------------------------------
+template <typename T = MaxUsdShaderWriter>
+class ShaderWriterWrapper
+    : public T
+    , public TfPyPolymorphic<MaxUsdShaderWriter>
+{
+public:
+    typedef ShaderWriterWrapper This;
+    typedef T                   base_t;
+
+    ShaderWriterWrapper(Mtl* material, const SdfPath& usdPath, MaxUsdWriteJobContext& jobCtx)
+        : T(material, usdPath, jobCtx)
+        , materialValue(nullptr)
+    {
+    }
+
+    static std::shared_ptr<This> New(uintptr_t createdWrapper)
+    {
+        return *((std::shared_ptr<This>*)createdWrapper);
+    }
+
+    virtual ~ShaderWriterWrapper() = default;
+
+    const UsdStage& GetUsdStage() const { return *get_pointer(base_t::GetUsdStage()); }
+
+    // This is the pattern inspired from USD/pxr/base/tf/wrapTestTfPython.cpp
+    // It would have been simpler to call 'this->CallVirtual<>("Write",
+    // &base_t::default_Write)();' But it is not allowed Instead of having to create a
+    // function 'default_Write(...)' to call the base class when there is no Python implementation.
+    void default_Write() { base_t::Write(); }
+    void Write() override { this->template CallVirtual<>("Write", &This::default_Write)(); }
+
+    bool default_HasMaterialDependencies() const { return base_t::HasMaterialDependencies(); }
+    bool HasMaterialDependencies() const override
+    {
+        return this->template CallVirtual<>(
+            "HasMaterialDependencies", &This::default_HasMaterialDependencies)();
+    };
+
+    void default_GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const
+    {
+        base_t::GetSubMtlDependencies(subMtl);
+    }
+    void GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const
+    {
+        PyGILState_STATE gstate = PyGILState_Ensure();
+
+        Override o = this->GetOverride("GetSubMtlDependencies");
+        if (o) {
+            auto result = std::function<boost::python::list()>(TfPyCall<boost::python::list>(o))();
+            for (int i = 0; i < len(result); ++i) {
+                subMtl.push_back(dynamic_cast<Mtl*>(
+                    Animatable::GetAnimByHandle(boost::python::extract<INT_PTR>(result[i]))));
+            }
+        } else {
+            This::default_GetSubMtlDependencies(subMtl);
+        }
+
+        PyGILState_Release(gstate);
+    }
+
+    /// \brief Method called after all materials are exported
+    void default_PostWrite() { base_t::PostWrite(); }
+    void PostWrite() override
+    {
+        this->template CallVirtual<>("PostWrite", &This::default_PostWrite)();
+    };
+
+    INT_PTR GetMaterialAnimHandle()
+    {
+        if (!materialValue) {
+            materialValue = MAXClass::make_wrapper_for(base_t::GetMaterial());
+        }
+        if (materialValue)
+            return Animatable::GetHandleByAnim(materialValue->to_reftarg());
+        return 0;
+    }
+
+    //---------------------------------------------------------------------------------------------
+    /// \brief  wraps a factory function that allows registering an updated Python class
+    //---------------------------------------------------------------------------------------------
+    class FactoryFnWrapper : public MaxUsdPythonObjectRegistry
+    {
+    public:
+        // Instances of this class act as "function objects" that are fully compatible with the
+        // std::function requested by MaxUsdShaderWriterRegistry::Register. These will create
+        // python wrappers based on the latest class registered.
+        MaxUsdShaderWriterSharedPtr
+        operator()(Mtl* material, const SdfPath& usdPath, MaxUsdWriteJobContext& jobCtx)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            auto                  sptr = std::make_shared<This>(material, usdPath, jobCtx);
+            TfPyLock              pyLock;
+            boost::python::object instance = pyClass((uintptr_t)&sptr);
+            boost::python::incref(instance.ptr());
+            initialize_wrapper(instance.ptr(), sptr.get());
+            return sptr;
+        }
+
+        // We can have multiple function objects, this one adapts the CanExport function:
+        MaxUsdShaderWriter::ContextSupport
+        operator()(const MaxUsd::USDSceneBuilderOptions& exportArgs)
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return MaxUsdShaderWriter::ContextSupport::Unsupported;
+            }
+
+            TfPyLock pyLock;
+
+            std::string canExport = "CanExport";
+            if (!PyObject_HasAttrString(pyClass.ptr(), canExport.c_str())) {
+                MaxUsd::Log::Error(
+                    "Registered python ShaderWriter \"{}\" has no suitable CanExport(node, "
+                    "exportArgs) method.",
+                    boost::python::extract<std::string>(pyClass.attr("__name__"))());
+                return MaxUsdShaderWriter::ContextSupport::Unsupported;
+            }
+
+            boost::python::object CanExport = pyClass.attr(canExport.c_str());
+            PyObject*             callable = CanExport.ptr();
+            try {
+                auto res
+                    = boost::python::call<int>(callable, USDSceneBuilderOptionsWrapper(exportArgs));
+                return MaxUsdShaderWriter::ContextSupport(res);
+            } catch (...) {
+                MaxUsd::Log::Error("Unable to call the CanExport(exportArgs) method of the "
+                                   "registered ShaderWriter.");
+            }
+            return MaxUsdShaderWriter::ContextSupport::Unsupported;
+        }
+
+        // Declaring if the material(s) the Writer is registered for are target agnostic.
+        // A target agnostic material is a material that can be exported to any target, and doesn't
+        // need to be exported to each specific target.
+        bool operator()()
+        {
+            boost::python::object pyClass = GetPythonObject(_classIndex);
+            if (!pyClass) {
+                // Prototype was unregistered
+                return false;
+            }
+
+            TfPyLock pyLock;
+
+            std::string isMaterialTargetAgnostic = "IsMaterialTargetAgnostic";
+            // Registered python ShaderWriter has no suitable GetTargetAgnosticMaterials() method.
+            if (!PyObject_HasAttrString(pyClass.ptr(), isMaterialTargetAgnostic.c_str())) {
+                return false;
+            }
+
+            boost::python::object IsMaterialTargetAgnostic
+                = pyClass.attr(isMaterialTargetAgnostic.c_str());
+            PyObject* callable = IsMaterialTargetAgnostic.ptr();
+            try {
+                auto res = boost::python::call<bool>(callable);
+                return res;
+            } catch (...) {
+                MaxUsd::Log::Error("Unable to call the IsMaterialTargetAgnostic() method of the "
+                                   "registered ShaderWriter.");
+            }
+            return false;
+        }
+
+        // Create a new wrapper for a Python class that is seen for the first time for a given
+        // purpose. If we already have a registration for this purpose: update the class to
+        // allow the previously issued factory function to use it.
+        static FactoryFnWrapper
+        Register(boost::python::object cl, const std::string& usdShaderId, bool& updated)
+        {
+            size_t classIndex = RegisterPythonObject(cl, GetKey(cl, usdShaderId));
+            updated = classIndex == MaxUsdPythonObjectRegistry::UPDATED;
+            // Return a new factory function:
+            return FactoryFnWrapper { classIndex };
+        }
+
+        // Unregister a class for a given purpose. This will cause the associated factory
+        // function to stop producing this Python class.
+        static void Unregister(boost::python::object cl, const std::string& usdShaderId)
+        {
+            UnregisterPythonObject(cl, GetKey(cl, usdShaderId));
+        }
+
+    private:
+        // Function object constructor. Requires only the index of the Python class to use.
+        FactoryFnWrapper(size_t classIndex)
+            : _classIndex(classIndex) {};
+
+        size_t _classIndex;
+
+        // Generates a unique key based on the name of the class, along with the class
+        // purpose:
+        static std::string GetKey(boost::python::object cl, const std::string& usdShaderId)
+        {
+            return ClassName(cl) + "," + usdShaderId + "," + ",ShaderWriter";
+        }
+    };
+
+    static void Register(boost::python::object cl, const TfToken& usdShaderId)
+    {
+        bool             updated = false;
+        FactoryFnWrapper fn = FactoryFnWrapper::Register(cl, usdShaderId, updated);
+        if (!updated) {
+            MaxUsdShaderWriterRegistry::Register(usdShaderId, fn, fn, fn, true);
+        }
+    }
+
+    static void Unregister(boost::python::object cl, const TfToken& usdShaderId)
+    {
+        FactoryFnWrapper::Unregister(cl, usdShaderId);
+    }
+
+protected:
+    Value* materialValue;
+};
+
+namespace {
+
+// This class is used to expose protected members of MaxUsdShaderWriter to Python
+class ShaderWriterAllowProtected : public MaxUsdShaderWriter
+{
+    typedef MaxUsdShaderWriter base_t;
+
+public:
+    void SetUsdPrim(const UsdPrim& usdPrim) { base_t::SetUsdPrim(usdPrim); }
+    USDSceneBuilderOptionsWrapper GetExportArgs() const
+    {
+        return USDSceneBuilderOptionsWrapper(base_t::GetExportArgs());
+    }
+    boost::python::dict GetMaterialsToPrimsMap() const
+    {
+        boost::python::dict materialsToPrims;
+        for (const auto& matToPrim : base_t::GetMaterialsToPrimsMap()) {
+            materialsToPrims[Animatable::GetHandleByAnim(matToPrim.first)] = matToPrim.second;
+        }
+        return materialsToPrims;
+    }
+};
+
+void unprotect_SetUsdPrim(MaxUsdShaderWriter& pw, const UsdPrim& prim)
+{
+    reinterpret_cast<ShaderWriterAllowProtected&>(pw).SetUsdPrim(prim);
+}
+USDSceneBuilderOptionsWrapper unprotect_GetExportArgs(MaxUsdShaderWriter& pw)
+{
+    return reinterpret_cast<ShaderWriterAllowProtected&>(pw).GetExportArgs();
+}
+boost::python::dict unprotect_GetMaterialsToPrimsMap(MaxUsdShaderWriter& pw)
+{
+    return reinterpret_cast<ShaderWriterAllowProtected&>(pw).GetMaterialsToPrimsMap();
+}
+} // namespace
+//----------------------------------------------------------------------------------------------------------------------
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(MaxUsdShaderWriter::ContextSupport::Supported, "Supported");
+    TF_ADD_ENUM_NAME(MaxUsdShaderWriter::ContextSupport::Fallback, "Fallback");
+    TF_ADD_ENUM_NAME(MaxUsdShaderWriter::ContextSupport::Unsupported, "Unsupported");
+}
+
+void wrapShaderWriter()
+{
+    boost::python::class_<ShaderWriterWrapper<>, boost::noncopyable> c(
+        "ShaderWriter",
+        "ShaderWriter base class from which material writers need to inherit from. \n"
+        "A ShaderWriter instance is created for each material needing translation.",
+        boost::python::no_init);
+
+    boost::python::scope s(c);
+
+    TfPyWrapEnum<MaxUsdShaderWriter::ContextSupport>();
+
+    c.def("__init__", make_constructor(&ShaderWriterWrapper<>::New))
+        .def(
+            "Write",
+            &ShaderWriterWrapper<>::Write,
+            &ShaderWriterWrapper<>::default_Write,
+            (boost::python::arg("self")),
+            "Method called to properly export the material.")
+        .def(
+            "HasMaterialDependencies",
+            &ShaderWriterWrapper<>::HasMaterialDependencies,
+            &ShaderWriterWrapper<>::default_HasMaterialDependencies,
+            (boost::python::arg("self")),
+            "Reports whether the ShaderWriter needs additional dependent materials to be exported.")
+        .def(
+            "PostWrite",
+            &ShaderWriterWrapper<>::PostWrite,
+            &ShaderWriterWrapper<>::default_PostWrite,
+            (boost::python::arg("self")),
+            "Method called after all materials are exported.")
+        .def(
+            "GetMaterial",
+            &ShaderWriterWrapper<>::GetMaterialAnimHandle,
+            (boost::python::arg("self")),
+            "Get the MAXScript AnimHandle on the material being exported.")
+        .def(
+            "GetSubMtlDependencies",
+            &ShaderWriterWrapper<>::GetSubMtlDependencies,
+            &ShaderWriterWrapper<>::default_GetSubMtlDependencies,
+            boost::python::arg("self"),
+            "Retrieve the dependent materials")
+        .def(
+            "GetUsdPrim",
+            &ShaderWriterWrapper<>::GetUsdPrim,
+            boost::python::return_internal_reference<>(),
+            (boost::python::arg("self")),
+            "Get the USD prim being written to.")
+        .def(
+            "SetUsdPrim",
+            &::unprotect_SetUsdPrim,
+            (boost::python::arg("self")),
+            "Set the USD Shade prim.")
+        .def(
+            "GetExportArgs",
+            &::unprotect_GetExportArgs,
+            (boost::python::arg("self")),
+            "Get the current global export args in effect.")
+        .def(
+            "GetMaterialsToPrimsMap",
+            &::unprotect_GetMaterialsToPrimsMap,
+            (boost::python::arg("self")),
+            "Gets the current map of exported materials (handle) and their paths.")
+        .def(
+            "GetUsdStage",
+            &MaxUsdShaderWriter::GetUsdStage,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the USD stage being written to.")
+        .def(
+            "GetUsdPath",
+            &MaxUsdShaderWriter::GetUsdPath,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the USD prim destination.")
+        .def(
+            "GetFilename",
+            &MaxUsdShaderWriter::GetFilename,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get the filename and path of where the stage is written on disk.")
+        .def(
+            "IsUSDZFile",
+            &MaxUsdShaderWriter::IsUSDZFile,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self")),
+            "Get whether the file to be exported is a USDZ file.")
+        .def(
+            "Register",
+            &ShaderWriterWrapper<>::Register,
+            (boost::python::args("shader_writer_class", "material_non_localized_name")),
+            "Static method to register an ShaderWriter into the ShaderWriterRegistry.")
+        .staticmethod("Register")
+        .def("Unregister", &ShaderWriterWrapper<>::Unregister)
+        .staticmethod("Unregister");
+}
diff --git a/src/python/wrapShadingMode.cpp b/src/python/wrapShadingMode.cpp
new file mode 100644
index 0000000..ae86536
--- /dev/null
+++ b/src/python/wrapShadingMode.cpp
@@ -0,0 +1,97 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/ShadingModeRegistry.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class ShadingModeRegistry
+{
+public:
+    static void RegisterImportConversion(
+        const TfToken& materialConversion,
+        const TfToken& renderContext,
+        const TfToken& niceName,
+        const TfToken& description)
+    {
+        MaxUsdShadingModeRegistry::GetInstance().RegisterImportConversion(
+            materialConversion, renderContext, niceName, description);
+    }
+    static void RegisterExportConversion(
+        const TfToken& materialConversion,
+        const TfToken& renderContext,
+        const TfToken& niceName,
+        const TfToken& description)
+    {
+        MaxUsdShadingModeRegistry::GetInstance().RegisterExportConversion(
+            materialConversion, renderContext, niceName, description);
+    }
+};
+
+//----------------------------------------------------------------------------------------------------------------------
+void wrapShadingMode()
+{
+    boost::python::class_<ShadingModeRegistry>(
+        "ShadingModeRegistry",
+        "The only element exposed to Python from the shading mode registry is the ability"
+        "to register conversion type (or material target).",
+        boost::python::no_init)
+        .def(
+            "RegisterImportConversion",
+            &ShadingModeRegistry::RegisterImportConversion,
+            (boost::python::args(
+                "material_conversion", "render_context", "niceName", "description")),
+            "Registers an import material conversion with render context, nice name, and "
+            "description. \n"
+            "The materialConversion name gets used directly in the render option string as one of\n"
+            "the \"Materials import to\" options of the USD export dialog.\n\n"
+            "The renderContext gets used to specialize the binding point. See UsdShadeMaterial\n"
+            "documentation for details. Use a value of \"UsdShadeTokens->universalRenderContext\" "
+            "if\n"
+            "the resulting UsdShade nodes are written using an API shared by multiple renderers,\n"
+            "like UsdPreviewSurface. For UsdShade nodes targeting a specific rendering engine, "
+            "please\n"
+            "define a custom render context understood by the renderer.\n\n"
+            "The niceName is the name displayed in the \"Materials import to\" option of the USD "
+            "import dialog.\n"
+            "The description gets displayed as a tooltip in the \"Materials import to\" option of "
+            "the USD import dialog.")
+        .staticmethod("RegisterImportConversion")
+
+        .def(
+            "RegisterExportConversion",
+            &ShadingModeRegistry::RegisterExportConversion,
+            (boost::python::args(
+                "material_conversion", "render_context", "niceName", "description")),
+            "Registers an export material conversion with render context, nice name, and "
+            "description. \n"
+            "The materialConversion name gets used directly in the render option string as one of\n"
+            "the \"Materials export to\" options of the USD export dialog.\n\n"
+            "The renderContext gets used to specialize the binding point. See UsdShadeMaterial\n"
+            "documentation for details. Use a value of \"UsdShadeTokens->universalRenderContext\" "
+            "if\n"
+            "the resulting UsdShade nodes are written using an API shared by multiple renderers,\n"
+            "like UsdPreviewSurface. For UsdShade nodes targeting a specific rendering engine, "
+            "please\n"
+            "define a custom render context understood by the renderer.\n\n"
+            "The niceName is the name displayed in the \"Materials export to\" option of the USD "
+            "export dialog.\n"
+            "The description gets displayed as a tooltip in the \"Materials export to\" option of "
+            "the USD export dialog.")
+        .staticmethod("RegisterExportConversion");
+}
diff --git a/src/python/wrapTranslationUtils.cpp b/src/python/wrapTranslationUtils.cpp
new file mode 100644
index 0000000..773d27c
--- /dev/null
+++ b/src/python/wrapTranslationUtils.cpp
@@ -0,0 +1,115 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapReadJobContext.h"
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include <MaxUsd/Translators/TranslatorUtils.h>
+
+#include <pxr/base/tf/pyContainerConversions.h>
+
+#include <maxscript/maxwrapper/mxsobjects.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+#include <control.h> // 3ds Max Animating method
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+class TranslationUtilsWrapper
+{
+    TranslationUtilsWrapper() = delete;
+    ~TranslationUtilsWrapper() = delete;
+
+public:
+    static boost::python::list
+    GetKeyFramesFromValidityInterval(ULONG nodeHandle, const USDSceneBuilderOptionsWrapper& options)
+    {
+        const auto keyFrames = MaxUsd::GetFramesFromValidityInterval(
+            GetCOREInterface()->GetINodeByHandle(nodeHandle), options.GetResolvedTimeConfig());
+
+        boost::python::list frames;
+        const auto&         maxTimeValues = keyFrames.first;
+        const auto&         usdTimeCodes = keyFrames.second;
+        for (int i = 0; i < maxTimeValues.size(); ++i) {
+            frames.append(boost::python::make_tuple(
+                static_cast<float>(maxTimeValues[i]) / static_cast<float>(GetTicksPerFrame()),
+                usdTimeCodes[i].GetValue()));
+        }
+        return frames;
+    }
+
+    static void ReadUsdAttribute(
+        const UsdAttribute&         usdAttr,
+        PyObject*                   callable,
+        MaxUsdReadJobContextWrapper jobCtx,
+        bool                        onlyWhenAuthored)
+    {
+        MaxUsdTranslatorUtil::ReadUsdAttribute(
+            usdAttr,
+            [&](const VtValue& value, const UsdTimeCode& timeCode, const TimeValue& time) {
+                bool res = boost::python::call<bool>(
+                    callable,
+                    value,
+                    timeCode,
+                    MaxUsd::GetMaxFrameFromUsdTimeCode(jobCtx.GetStage(), timeCode),
+                    Animating() == 1);
+                if (!res) {
+                    // unable to properly read the attribute
+                    MaxUsd::Log::Error(
+                        "Unable to import the '{}' attribute on '{}' at time code {}.",
+                        usdAttr.GetName().GetString(),
+                        usdAttr.GetPrim().GetName().GetString(),
+                        timeCode.GetValue());
+                    return false;
+                }
+                return res;
+            },
+            jobCtx,
+            onlyWhenAuthored);
+    }
+};
+
+void wrapTranslationUtils()
+{
+    boost::python::class_<TranslationUtilsWrapper, boost::noncopyable> c(
+        "TranslationUtils", boost::python::no_init);
+
+    boost::python::scope s(c);
+
+    c.def(
+         "GetKeyFramesFromValidityInterval",
+         &TranslationUtilsWrapper::GetKeyFramesFromValidityInterval,
+         boost::python::args("node_handle", "options"))
+        .staticmethod("GetKeyFramesFromValidityInterval")
+        .def(
+            "ReadUsdAttribute",
+            &TranslationUtilsWrapper::ReadUsdAttribute,
+            (boost::python::arg("job_context"),
+             boost::python::arg("functor"),
+             boost::python::arg("context"),
+             boost::python::arg("only_when_authored") = true))
+        .staticmethod("ReadUsdAttribute")
+        .def(
+            "GetMaxFrameFromUsdTimeCode",
+            &MaxUsd::GetMaxFrameFromUsdTimeCode,
+            boost::python::args("stage", "time_code"))
+        .staticmethod("GetMaxFrameFromUsdTimeCode")
+        .def(
+            "GetMaxTimeValueFromUsdTimeCode",
+            &MaxUsd::GetMaxTimeValueFromUsdTimeCode,
+            boost::python::args("stage", "time_code"))
+        .staticmethod("GetMaxTimeValueFromUsdTimeCode");
+}
diff --git a/src/python/wrapTranslatorMaterial.cpp b/src/python/wrapTranslatorMaterial.cpp
new file mode 100644
index 0000000..0d76172
--- /dev/null
+++ b/src/python/wrapTranslatorMaterial.cpp
@@ -0,0 +1,53 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapMaxSceneBuilderOptions.h"
+#include "wrapReadJobContext.h"
+
+#include <MaxUsd/Translators/TranslatorMaterial.h>
+
+#include <boost/python/class.hpp>
+#include <boost/python/def.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+struct MaxUsdTranslatorMaterialWrapper
+{
+    static bool AssignMaterial(
+        const MaxSceneBuilderOptionsWrapper& buildOptions,
+        const UsdGeomGprim&                  prim,
+        INT_PTR                              nodeHandle,
+        boost::python::object&               context)
+    {
+        INode* node = dynamic_cast<INode*>(Animatable::GetAnimByHandle(nodeHandle));
+        if (node) {
+            MaxUsdReadJobContextWrapper& contextRef
+                = boost::python::extract<MaxUsdReadJobContextWrapper&>(context);
+            return MaxUsdTranslatorMaterial::AssignMaterial(buildOptions, prim, node, contextRef);
+        }
+        return false;
+    }
+};
+
+void wrapTranslatorMaterial()
+{
+    boost::python::class_<MaxUsdTranslatorMaterialWrapper, boost::noncopyable>(
+        "TranslatorMaterial", boost::python::no_init)
+        .def(
+            "AssignMaterial",
+            &MaxUsdTranslatorMaterialWrapper::AssignMaterial,
+            boost::python::args("options", "prim", "node_handle", "context"))
+        .staticmethod("AssignMaterial");
+}
diff --git a/src/python/wrapUSDSceneBuilderOptions.cpp b/src/python/wrapUSDSceneBuilderOptions.cpp
new file mode 100644
index 0000000..15b1d2e
--- /dev/null
+++ b/src/python/wrapUSDSceneBuilderOptions.cpp
@@ -0,0 +1,817 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "wrapUSDSceneBuilderOptions.h"
+
+#include "pythonObjectRegistry.h"
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+#include <MaxUsd/Utilities/Logging.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/OptionUtils.h>
+
+#include <pxr/base/tf/api.h>
+#include <pxr/base/tf/pyContainerConversions.h>
+#include <pxr/base/tf/pyEnum.h>
+#include <pxr/base/tf/pyPolymorphic.h>
+#include <pxr/base/tf/pyResultConversions.h>
+#include <pxr/base/tf/registryManager.h>
+
+#include <QByteArray>
+#include <boost/python/class.hpp>
+#include <boost/python/return_value_policy.hpp>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+USDSceneBuilderOptionsWrapper::USDSceneBuilderOptionsWrapper(
+    const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    SetOptions(exportArgs);
+}
+
+USDSceneBuilderOptionsWrapper::USDSceneBuilderOptionsWrapper(const std::string& json)
+{
+    const QByteArray jsonBytes(json.c_str());
+    SetOptions(USDSceneBuilderOptions(MaxUsd::OptionUtils::DeserializeOptionsFromJson(jsonBytes)));
+}
+
+const TfToken& USDSceneBuilderOptionsWrapper::GetChannelPrimvarName(int channel) const
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    return config.GetPrimvarName();
+}
+
+void USDSceneBuilderOptionsWrapper::SetChannelPrimvarName(int channel, const pxr::TfToken& name)
+{
+    auto       meshConversionOptions = GetMeshConversionOptions();
+    const auto current = meshConversionOptions.GetChannelPrimvarConfig(channel);
+    MaxUsd::MappedAttributeBuilder::Config cfg { name,
+                                                 current.GetPrimvarType(),
+                                                 current.IsAutoExpandType() };
+    meshConversionOptions.SetChannelPrimvarConfig(channel, cfg);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+MaxUsd::MappedAttributeBuilder::Type
+USDSceneBuilderOptionsWrapper::GetChannelPrimvarType(int channel) const
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    return config.GetPrimvarType();
+}
+
+void USDSceneBuilderOptionsWrapper::SetChannelPrimvarType(
+    int                                  channel,
+    MaxUsd::MappedAttributeBuilder::Type type)
+{
+    auto       meshConversionOptions = GetMeshConversionOptions();
+    const auto current = meshConversionOptions.GetChannelPrimvarConfig(channel);
+    MaxUsd::MappedAttributeBuilder::Config cfg { current.GetPrimvarName(),
+                                                 type,
+                                                 current.IsAutoExpandType() };
+    meshConversionOptions.SetChannelPrimvarConfig(channel, cfg);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+bool USDSceneBuilderOptionsWrapper::GetChannelPrimvarAutoExpandType(int channel) const
+{
+    // Will throw on unmapped channels.
+    const auto& config = GetValidPrimvarConfig(channel);
+    return config.IsAutoExpandType();
+}
+
+void USDSceneBuilderOptionsWrapper::SetChannelPrimvarAutoExpandType(int channel, bool autoExpand)
+{
+    auto       meshConversionOptions = GetMeshConversionOptions();
+    const auto current = meshConversionOptions.GetChannelPrimvarConfig(channel);
+    MaxUsd::MappedAttributeBuilder::Config cfg { current.GetPrimvarName(),
+                                                 current.GetPrimvarType(),
+                                                 autoExpand };
+    meshConversionOptions.SetChannelPrimvarConfig(channel, cfg);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+bool USDSceneBuilderOptionsWrapper::GetBakeObjectOffsetTransform() const
+{
+    return GetMeshConversionOptions().GetBakeObjectOffsetTransform();
+}
+
+void USDSceneBuilderOptionsWrapper::SetBakeObjectOffsetTransform(bool bakeObjectOffset)
+{
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetBakeObjectOffsetTransform(bakeObjectOffset);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+bool USDSceneBuilderOptionsWrapper::GetPreserveEdgeOrientation() const
+{
+    return GetMeshConversionOptions().GetPreserveEdgeOrientation();
+}
+void USDSceneBuilderOptionsWrapper::SetPreserveEdgeOrientation(bool preserveEdgeOrientation)
+{
+    auto meshConversionOptions = GetMeshConversionOptions();
+    meshConversionOptions.SetPreserveEdgeOrientation(preserveEdgeOrientation);
+    SetMeshConversionOptions(meshConversionOptions);
+}
+
+std::string USDSceneBuilderOptionsWrapper::GetLogPath() const
+{
+    return GetLogOptions().path.u8string();
+}
+
+void USDSceneBuilderOptionsWrapper::SetLogPath(const std::string& logPath)
+{
+    auto logOptions = GetLogOptions();
+    logOptions.path = logPath;
+    SetLogOptions(logOptions);
+}
+
+MaxUsd::Log::Level USDSceneBuilderOptionsWrapper::GetLogLevel() const
+{
+    return GetLogOptions().level;
+}
+
+void USDSceneBuilderOptionsWrapper::SetLogLevel(MaxUsd::Log::Level logLevel)
+{
+    auto logOptions = GetLogOptions();
+    logOptions.level = logLevel;
+    SetLogOptions(logOptions);
+}
+
+const MaxUsd::MappedAttributeBuilder::Config
+USDSceneBuilderOptionsWrapper::GetValidPrimvarConfig(int channel) const
+{
+    // Validation.
+    if (!MaxUsd::IsValidChannel(channel)) {
+        const auto errorMsg
+            = std::to_string(channel)
+            + std::string(
+                  " is not a valid map channel. Valid channels are from -2 to 99 inclusively.");
+        throw std::runtime_error(errorMsg.c_str());
+    }
+    return GetMeshConversionOptions().GetChannelPrimvarConfig(channel);
+}
+
+boost::python::dict USDSceneBuilderOptionsWrapper::GetAllChaserArgs() const
+{
+    boost::python::dict allChaserArgs;
+    for (auto&& perChaser : USDSceneBuilderOptions::GetAllChaserArgs()) {
+        auto perChaserDict = boost::python::dict();
+        for (auto&& perItem : perChaser.second) {
+            perChaserDict[perItem.first] = perItem.second;
+        }
+        allChaserArgs[perChaser.first] = perChaserDict;
+    }
+    return allChaserArgs;
+}
+
+void USDSceneBuilderOptionsWrapper::SetAllChaserArgsFromDict(boost::python::dict args)
+{
+    std::map<std::string, ChaserArgs> allArgs;
+    try {
+        auto items = args.items();
+        for (boost::python::ssize_t i = 0; i < boost::python::len(items); ++i) {
+            std::string chaserKey = boost::python::extract<std::string>(items[i][0]);
+
+            ChaserArgs chaserArgs;
+
+            auto paramDict = boost::python::dict { items[i][1] };
+
+            auto params = paramDict.items();
+            for (boost::python::ssize_t i = 0; i < boost::python::len(params); ++i) {
+                std::string name = boost::python::extract<std::string>(params[i][0]);
+                std::string value = boost::python::extract<std::string>(params[i][1]);
+                chaserArgs.insert({ name, value });
+            }
+            allArgs.insert({ chaserKey, chaserArgs });
+        }
+    } catch (...) {
+        throw std::invalid_argument(
+            std::string("Badly formed dictionary. Expecting the form : {'chaser' : {'param' : "
+                        "'val', 'param1' : 'val2'}, 'chaser2' : {'param2' : 'val3'}}."));
+    }
+    USDSceneBuilderOptions::SetAllChaserArgs(allArgs);
+}
+
+void USDSceneBuilderOptionsWrapper::SetAllChaserArgsFromList(boost::python::list args)
+{
+    static const std::string badArgMsg(
+        "Badly formed list. Expecting 3 elements per argument entry (<chaser>, <key>, <value>).");
+
+    if (boost::python::len(args) % 3) {
+        throw std::invalid_argument(badArgMsg);
+    }
+
+    std::map<std::string, ChaserArgs> allArgs;
+    try {
+
+        for (int i = 0; i < len(args); i = i + 3) {
+            const std::string chaser = boost::python::extract<std::string>(args[i]);
+            const std::string param = boost::python::extract<std::string>(args[i + 1]);
+            const std::string value = boost::python::extract<std::string>(args[i + 2]);
+            ChaserArgs&       chaserArgs = allArgs[chaser];
+            chaserArgs[param] = value;
+        }
+    } catch (...) {
+        throw std::invalid_argument(badArgMsg);
+    }
+    MaxUsd::USDSceneBuilderOptions::SetAllChaserArgs(allArgs);
+}
+
+void USDSceneBuilderOptionsWrapper::SetAllMaterialConversions(
+    const std::set<std::string>& materialConversions)
+{
+    std::set<pxr::TfToken> conversionTokens;
+    for (const auto& conv : materialConversions) {
+        conversionTokens.insert(pxr::TfToken(conv));
+    }
+    MaxUsd::USDSceneBuilderOptions::SetAllMaterialConversions(conversionTokens);
+}
+
+std::string USDSceneBuilderOptionsWrapper::GetMaterialLayerPath() const
+{
+    return MaxUsd::USDSceneBuilderOptions::GetMaterialLayerPath();
+}
+
+std::string USDSceneBuilderOptionsWrapper::GetMaterialPrimPath() const
+{
+    return MaxUsd::USDSceneBuilderOptions::GetMaterialPrimPath().GetAsString();
+}
+
+std::string USDSceneBuilderOptionsWrapper::Serialize()
+{
+    return MaxUsd::OptionUtils::SerializeOptionsToJson(*this);
+}
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::Color3fArray);
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::FloatArray);
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::Float2Array);
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::Float3Array);
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::TexCoord2fArray);
+    TF_ADD_ENUM_NAME(MaxUsd::MappedAttributeBuilder::Type::TexCoord3fArray);
+
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::NormalsMode::None);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::NormalsMode::AsAttribute);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::NormalsMode::AsPrimvar);
+
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::MeshFormat::FromScene);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::MeshFormat::TriMesh);
+    TF_ADD_ENUM_NAME(MaxUsd::MaxMeshConversionOptions::MeshFormat::PolyMesh);
+
+    TF_ADD_ENUM_NAME(MaxUsd::Log::Level::Off);
+    TF_ADD_ENUM_NAME(MaxUsd::Log::Level::Error);
+    TF_ADD_ENUM_NAME(MaxUsd::Log::Level::Warn);
+    TF_ADD_ENUM_NAME(MaxUsd::Log::Level::Info);
+
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::ContentSource::RootNode);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::ContentSource::Selection);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::ContentSource::NodeList);
+
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::UpAxis::Y);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::UpAxis::Z);
+
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::FileFormat::Binary);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::FileFormat::ASCII);
+
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::TimeMode::AnimationRange);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::TimeMode::CurrentFrame);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::TimeMode::ExplicitFrame);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::TimeMode::FrameRange);
+
+#ifdef IS_MAX2024_OR_GREATER
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets);
+    TF_ADD_ENUM_NAME(MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly);
+#endif
+}
+
+void wrapUsdSceneBuilderOptions()
+{
+    using namespace boost::python;
+
+    TfPyWrapEnum<MaxUsd::MappedAttributeBuilder::Type>("PrimvarType");
+    TfPyWrapEnum<MaxUsd::MaxMeshConversionOptions::NormalsMode>("NormalsMode");
+    TfPyWrapEnum<MaxUsd::MaxMeshConversionOptions::MeshFormat>("MeshFormat");
+    TfPyWrapEnum<MaxUsd::USDSceneBuilderOptions::ContentSource>("ContentSource");
+    TfPyWrapEnum<MaxUsd::USDSceneBuilderOptions::UpAxis>("UpAxis");
+    TfPyWrapEnum<MaxUsd::USDSceneBuilderOptions::FileFormat>("FileFormat");
+    TfPyWrapEnum<MaxUsd::USDSceneBuilderOptions::TimeMode>("TimeMode");
+#ifdef IS_MAX2024_OR_GREATER
+    TfPyWrapEnum<MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle>("MtlSwitcherExportStyle");
+#endif
+    TfPyWrapEnum<MaxUsd::Log::Level>("LogLevel");
+
+    boost::python::class_<USDSceneBuilderOptionsWrapper> c(
+        "USDSceneBuilderOptions",
+        "The class USDSceneBuilderOptions which exposes the export arguments from the current "
+        "export context.");
+    c.def(init<const USDSceneBuilderOptionsWrapper&>())
+        .def(init<const std::string&>())
+        .def(
+            "GetContentSource",
+            &MaxUsd::USDSceneBuilderOptions::GetContentSource,
+            (boost::python::arg("self")),
+            "Gets the 3ds Max content source from which to build the USD scene.")
+        .def(
+            "SetContentSource",
+            &MaxUsd::USDSceneBuilderOptions::SetContentSource,
+            (boost::python::args("self", "contentSource")),
+            "Sets the 3ds Max content source from which to build the USD scene.")
+        .def(
+            "GetAllMaterialConversions",
+            &MaxUsd::USDSceneBuilderOptions::GetAllMaterialConversions,
+            return_value_policy<pxr::TfPySequenceToSet>(),
+            (boost::python::arg("self")),
+            "Gets the set of targeted materials for material conversion.")
+        .def(
+            "SetAllMaterialConversions",
+            &USDSceneBuilderOptionsWrapper::SetAllMaterialConversions,
+            return_value_policy<pxr::TfPySequenceToSet>(),
+            (boost::python::args("self", "materialConversions")),
+            "Sets the set of targeted materials for material conversion.")
+        .def(
+            "GetShadingMode",
+            &MaxUsd::USDSceneBuilderOptions::GetShadingMode,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Gets the shading schema (mode) to use for material export.")
+        .def(
+            "SetShadingMode",
+            &MaxUsd::USDSceneBuilderOptions::SetShadingMode,
+            return_value_policy<return_by_value>(),
+            (boost::python::args("self", "shadingMode")),
+            "Sets the shading schema (mode) to use for material export.")
+        .def(
+            "GetConvertMaterialsTo",
+            &MaxUsd::USDSceneBuilderOptions::GetConvertMaterialsTo,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Returns a token identifier of the USD material type targeted to convert the 3ds Max "
+            "materials (to which USD material are we exporting to).")
+        .def(
+            "GetTranslateMeshes",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateMeshes,
+            (boost::python::arg("self")),
+            "Check if 3ds Max meshes should be translated into USD meshes.")
+        .def(
+            "SetTranslateMeshes",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateMeshes,
+            (boost::python::args("self", "translateMeshes")),
+            "Sets whether 3ds Max meshes should be translated into USD meshes.")
+        .def(
+            "GetTranslateShapes",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateShapes,
+            (boost::python::arg("self")),
+            "Check if 3ds Max shapes should be translated into USD meshes.")
+        .def(
+            "SetTranslateShapes",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateShapes,
+            (boost::python::args("self", "translateShapes")),
+            "Sets whether 3ds Max shapes should be translated into USD meshes.")
+        .def(
+            "GetTranslateLights",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateLights,
+            (boost::python::arg("self")),
+            "Check if 3ds Max lights should be translated into USD lights.")
+        .def(
+            "SetTranslateLights",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateLights,
+            (boost::python::args("self", "translateLights")),
+            "Sets whether 3ds Max lights should be translated into USD lights.")
+        .def(
+            "GetTranslateCameras",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateCameras,
+            (boost::python::arg("self")),
+            "Check if 3ds Max cameras should be translated into USD cameras.")
+        .def(
+            "SetTranslateCameras",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateCameras,
+            (boost::python::args("self", "translateCameras")),
+            "Sets whether 3ds Max cameras should be translated into USD cameras.")
+        .def(
+            "GetTranslateMaterials",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateMaterials,
+            (boost::python::arg("self")),
+            "Check if materials should be translated.")
+        .def(
+            "SetTranslateMaterials",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateMaterials,
+            (boost::python::args("self", "translateMaterials")),
+            "Sets whether materials should be translated.")
+        .def(
+            "GetTranslateSkin",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateSkin,
+            (boost::python::arg("self")),
+            "Check if skin and skeletons should be translated.")
+        .def(
+            "SetTranslateSkin",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateSkin,
+            (boost::python::args("self", "translateSkin")),
+            "Sets whether skin and skeletons should be translated.")
+        .def(
+            "GetTranslateMorpher",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateMorpher,
+            (boost::python::arg("self")),
+            "Check if morpher modifiers should be translated.")
+        .def(
+            "SetTranslateMorpher",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateMorpher,
+            (boost::python::args("self", "translateMorpher")),
+            "Sets whether morpher modifiers should be translated.")
+        .def(
+            "GetChannelPrimvarType",
+            &USDSceneBuilderOptionsWrapper::GetChannelPrimvarType,
+            (boost::python::args("self", "channel")),
+            "Gets the primvar type associated with a given max channel on export "
+            "(maxUsd.MappedAttributeBuilder.Type).")
+        .def(
+            "SetChannelPrimvarType",
+            &USDSceneBuilderOptionsWrapper::SetChannelPrimvarType,
+            (boost::python::args("self", "channel", "type")),
+            "Sets the primvar type associated with a given max channel on export "
+            "(maxUsd.MappedAttributeBuilder.Type).")
+        .def(
+            "GetChannelPrimvarName",
+            &USDSceneBuilderOptionsWrapper::GetChannelPrimvarName,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self"), boost::python::arg("channel")),
+            "Gets the primvar name of a given channel.")
+        .def(
+            "SetChannelPrimvarName",
+            &USDSceneBuilderOptionsWrapper::SetChannelPrimvarName,
+            boost::python::return_value_policy<boost::python::return_by_value>(),
+            (boost::python::arg("self"), boost::python::args("channel", "name")),
+            "Sets the primvar name associated with a given map channel.")
+        .def(
+            "GetChannelPrimvarAutoExpandType",
+            &USDSceneBuilderOptionsWrapper::GetChannelPrimvarAutoExpandType,
+            (boost::python::arg("self")),
+            "Gets whether to auto-expand the primvar type based on the data.")
+        .def(
+            "SetChannelPrimvarAutoExpandType",
+            &USDSceneBuilderOptionsWrapper::SetChannelPrimvarAutoExpandType,
+            (boost::python::args("self", "autoExpandType")),
+            "Sets whether to auto-expand the primvar type based on the data.")
+        .def(
+            "GetUsdStagesAsReferences",
+            &MaxUsd::USDSceneBuilderOptions::GetUsdStagesAsReferences,
+            (boost::python::arg("self")),
+            "Checks if USD Stage Objects should be exported as USD References.")
+        .def(
+            "SetUsdStagesAsReferences",
+            &MaxUsd::USDSceneBuilderOptions::SetUsdStagesAsReferences,
+            (boost::python::args("self", "UsdStagesAsReferences")),
+            "Sets whether USD Stage Objects should be exported as USD References.")
+        .def(
+            "GetTranslateHidden",
+            &MaxUsd::USDSceneBuilderOptions::GetTranslateHidden,
+            (boost::python::arg("self")),
+            "Check if hidden objects should be translated.")
+        .def(
+            "SetTranslateHidden",
+            &MaxUsd::USDSceneBuilderOptions::SetTranslateHidden,
+            (boost::python::args("self", "translateHidden")),
+            "Sets whether hidden objects should be translated.")
+        .def(
+            "GetUseUSDVisibility",
+            &MaxUsd::USDSceneBuilderOptions::GetUseUSDVisibility,
+            (boost::python::arg("self")),
+            "Check if we should attempt to match the Hidden state in Max with the USD visibility "
+            "attribute.")
+        .def(
+            "SetUseUSDVisibility",
+            &MaxUsd::USDSceneBuilderOptions::SetUseUSDVisibility,
+            (boost::python::args("self", "useUSDVisibility")),
+            "Sets whether we should attempt to match the Hidden state in Max with the USD "
+            "visibility attribute.")
+        .def(
+            "GetAllowNestedGprims",
+            &MaxUsd::USDSceneBuilderOptions::GetAllowNestedGprims,
+            (boost::python::arg("self")),
+            "Check if the exporter is allowed to nest Gprims. While technically illegal, nesting "
+            "Gprims may still work in many cases while improving scene performance by limiting the "
+            "number of Prims.")
+        .def(
+            "SetAllowNestedGprims",
+            &MaxUsd::USDSceneBuilderOptions::SetAllowNestedGprims,
+            (boost::python::args("self", "allowNestedGprims")),
+            "Sets if the exporter is allowed to nest Gprims. While technically illegal, nesting "
+            "Gprims may still work in many cases while improving scene performance by limiting the "
+            "number of Prims.")
+        .def(
+            "GetFileFormat",
+            &MaxUsd::USDSceneBuilderOptions::GetFileFormat,
+            (boost::python::arg("self")),
+            "Returns the format of the file to export (maxUsd.FileFormat).")
+        .def(
+            "SetFileFormat",
+            &MaxUsd::USDSceneBuilderOptions::SetFileFormat,
+            (boost::python::args("self", "fileFormat")),
+            "Sets the format of the file to export (maxUsd.FileFormat).")
+        .def(
+            "GetNormalsMode",
+            &USDSceneBuilderOptionsWrapper::GetNormalsMode,
+            (boost::python::arg("self")),
+            "Returns how normals should be exported (maxUsd.NormalsMode).")
+        .def(
+            "SetNormalsMode",
+            &USDSceneBuilderOptionsWrapper::SetNormalsMode,
+            (boost::python::args("self", "normalsMode")),
+            "Sets normals should be exported (maxUsd.NormalsMode).")
+        .def(
+            "GetMeshFormat",
+            &MaxUsd::USDSceneBuilderOptions::GetMeshFormat,
+            (boost::python::arg("self")),
+            "Returns how meshes should be exported (maxUsd.MeshFormat).")
+        .def(
+            "SetMeshFormat",
+            &MaxUsd::USDSceneBuilderOptions::SetMeshFormat,
+            (boost::python::args("self", "meshFormat")),
+            "Sets how meshes should be exported (maxUsd.MeshFormat).")
+        .def(
+            "GetTimeMode",
+            &MaxUsd::USDSceneBuilderOptions::GetTimeMode,
+            (boost::python::arg("self")),
+            "Gets the time mode to be used for export (maxUsd.TimeMode).")
+        .def(
+            "SetTimeMode",
+            &MaxUsd::USDSceneBuilderOptions::SetTimeMode,
+            (boost::python::arg("self")),
+            "Sets the time mode to be used for export (maxUsd.TimeMode).")
+        .def(
+            "GetStartFrame",
+            &MaxUsd::USDSceneBuilderOptions::GetStartFrame,
+            (boost::python::arg("self")),
+            "Gets the first frame from which to export, only used if the time mode is configured "
+            "as ExplicitFrame or FrameRange.")
+        .def(
+            "SetStartFrame",
+            &MaxUsd::USDSceneBuilderOptions::SetStartFrame,
+            (boost::python::arg("self")),
+            "Sets the first frame from which to export, only used if the time mode is configured "
+            "as ExplicitFrame or FrameRange.")
+        .def(
+            "GetEndFrame",
+            &MaxUsd::USDSceneBuilderOptions::GetEndFrame,
+            (boost::python::arg("self")),
+            "Gets the last frame from which to export, only used if the time mode is configured as "
+            "FrameRange.")
+        .def(
+            "SetEndFrame",
+            &MaxUsd::USDSceneBuilderOptions::SetEndFrame,
+            (boost::python::arg("self")),
+            "Sets the last frame from which to export, only used if the time mode is configured as "
+            "FrameRange.")
+        .def(
+            "GetSamplesPerFrame",
+            &MaxUsd::USDSceneBuilderOptions::GetSamplesPerFrame,
+            (boost::python::arg("self")),
+            "Gets the number of samples to be exported to USD, per frame.")
+        .def(
+            "SetSamplesPerFrame",
+            &MaxUsd::USDSceneBuilderOptions::SetSamplesPerFrame,
+            (boost::python::arg("self")),
+            "Sets the number of samples to be exported to USD, per frame.")
+        .def(
+            "GetUpAxis",
+            &MaxUsd::USDSceneBuilderOptions::GetUpAxis,
+            (boost::python::arg("self")),
+            "Returns the \"up axis\" of the USD Stage produced from the translation of the 3ds Max "
+            "content (maxUsd.UpAxis).")
+        .def(
+            "SetUpAxis",
+            &MaxUsd::USDSceneBuilderOptions::SetUpAxis,
+            (boost::python::args("self", "upAxis")),
+            "Sets the \"up axis\" of the USD Stage produced from the translation of the 3ds Max "
+            "content (maxUsd.UpAxis).")
+        .def(
+            "GetBakeObjectOffsetTransform",
+            &USDSceneBuilderOptionsWrapper::GetBakeObjectOffsetTransform,
+            (boost::python::arg("self")),
+            "Gets whether or not the Object - offset transform should be baked into the geometry.")
+        .def(
+            "SetBakeObjectOffsetTransform",
+            &USDSceneBuilderOptionsWrapper::SetBakeObjectOffsetTransform,
+            (boost::python::args("self", "bakeObjectOffsetTransform")),
+            "Sets whether or not the Object - offset transform should be baked into the geometry.")
+        .def(
+            "GetPreserveEdgeOrientation",
+            &USDSceneBuilderOptionsWrapper::GetPreserveEdgeOrientation,
+            (boost::python::arg("self")),
+            "Gets whether or not to preserve max edge orientation.")
+        .def(
+            "SetPreserveEdgeOrientation",
+            &USDSceneBuilderOptionsWrapper::SetPreserveEdgeOrientation,
+            (boost::python::args("self", "preserveEdgeOrientation")),
+            "Sets whether or not to preserve max edge orientation.")
+        .def(
+            "GetRootPrimPath",
+            &MaxUsd::USDSceneBuilderOptions::GetRootPrimPath,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Gets the configured root prim path")
+        .def(
+            "SetRootPrimPath",
+            &MaxUsd::USDSceneBuilderOptions::SetRootPrimPath,
+            return_value_policy<return_by_value>(),
+            (boost::python::args("self", "rootPrimPath")),
+            "Sets the configured root prim path")
+        .def(
+            "GetLogPath",
+            &USDSceneBuilderOptionsWrapper::GetLogPath,
+            (boost::python::arg("self")),
+            "Gets the path to the log file.")
+        .def(
+            "SetLogPath",
+            &USDSceneBuilderOptionsWrapper::SetLogPath,
+            (boost::python::args("self", "logPath")),
+            "Sets the path to the log file.")
+        .def(
+            "GetLogLevel",
+            &USDSceneBuilderOptionsWrapper::GetLogLevel,
+            (boost::python::arg("self")),
+            "Gets the log level (maxUsd.Log.Level).")
+        .def(
+            "SetLogLevel",
+            &USDSceneBuilderOptionsWrapper::SetLogLevel,
+            (boost::python::args("self", "logLevel")),
+            "Sets the log level (maxUsd.Log.Level).")
+        .def(
+            "GetOpenInUsdview",
+            &MaxUsd::USDSceneBuilderOptions::GetOpenInUsdview,
+            (boost::python::arg("self")),
+            "Check if the produced USD file should be opened in USDVIEW at the end of the export.")
+        .def(
+            "SetOpenInUsdview",
+            &MaxUsd::USDSceneBuilderOptions::SetOpenInUsdview,
+            (boost::python::args("self", "openInUsdView")),
+            "Sets whether if the produced USD file should be opened in USDVIEW at the end of the "
+            "export.")
+        .def(
+            "GetChaserNames",
+            &MaxUsd::USDSceneBuilderOptions::GetChaserNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::arg("self")),
+            "Gets the list of export chasers to be called at USD export.")
+        .def(
+            "SetChaserNames",
+            &MaxUsd::USDSceneBuilderOptions::SetChaserNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::args("self", "chaserNames")),
+            "Sets the list of export chasers to be called at USD export.")
+        .def(
+            "GetAllChaserArgs",
+            &USDSceneBuilderOptionsWrapper::GetAllChaserArgs,
+            (boost::python::arg("self")),
+            "Gets the dictionary of export chasers with their specified arguments.")
+        .def(
+            "SetAllChaserArgs",
+            &USDSceneBuilderOptionsWrapper::SetAllChaserArgsFromDict,
+            (boost::python::args("self", "allChaserArgs")),
+            "Sets the dictionary of export chasers with their specified arguments, from a "
+            "dictionary.")
+        .def(
+            "SetAllChaserArgs",
+            &USDSceneBuilderOptionsWrapper::SetAllChaserArgsFromList,
+            (boost::python::args("self", "allChaserArgs")),
+            "Sets the dictionary of export chasers with their specified arguments, from a list.")
+        .def(
+            "GetContextNames",
+            &MaxUsd::USDSceneBuilderOptions::GetContextNames,
+            return_value_policy<TfPySequenceToSet>(),
+            (boost::python::arg("self")),
+            "Gets the list of export contexts being used at USD export.")
+        .def(
+            "SetContextNames",
+            &MaxUsd::USDSceneBuilderOptions::SetContextNames,
+            (boost::python::args("self", "contexts")),
+            "Sets the list of export contexts being used at USD export.")
+#ifdef IS_MAX2024_OR_GREATER
+        .def(
+            "GetMtlSwitcherExportStyle",
+            &MaxUsd::USDSceneBuilderOptions::GetMtlSwitcherExportStyle,
+            (boost::python::arg("self")),
+            "Gets the Material Switcher export style to be used for export "
+            "(maxUsd.MtlSwitcherExportStyle).")
+        .def(
+            "SetMtlSwitcherExportStyle",
+            &MaxUsd::USDSceneBuilderOptions::SetMtlSwitcherExportStyle,
+            (boost::python::args("self", "exportStyle")),
+            "Sets the Material Switcher export style to be used for export "
+            "(maxUsd.MtlSwitcherExportStyle).")
+#endif
+        .def(
+            "GetUseProgressBar",
+            &MaxUsd::USDSceneBuilderOptions::GetUseProgressBar,
+            (boost::python::arg("self")),
+            "Check if the 3ds Max progress bar should be used during export.")
+        .def(
+            "SetUseProgressBar",
+            &MaxUsd::USDSceneBuilderOptions::SetUseProgressBar,
+            (boost::python::args("self", "useProgressBar")),
+            "Sets if the 3ds Max progress bar should be used during export.")
+        .def(
+            "GetMaterialLayerPath",
+            &USDSceneBuilderOptionsWrapper::GetMaterialLayerPath,
+            (boost::python::arg("self")),
+            "Gets the path used for the Material Layer.")
+        .def(
+            "SetMaterialLayerPath",
+            &MaxUsd::USDSceneBuilderOptions::SetMaterialLayerPath,
+            (boost::python::args("self", "matLayerPath")),
+            "Sets the path used for the Material Layer.")
+        .def(
+            "GetUseSeparateMaterialLayer",
+            &MaxUsd::USDSceneBuilderOptions::GetUseSeparateMaterialLayer,
+            (boost::python::arg("self")),
+            "Check if material should be exported to a separate layer.")
+        .def(
+            "SetUseSeparateMaterialLayer",
+            &MaxUsd::USDSceneBuilderOptions::SetUseSeparateMaterialLayer,
+            (boost::python::args("self", "useSeparateMaterialLayer")),
+            "Sets if material should be exported to a separate layer.")
+        .def(
+            "GetMaterialPrimPath",
+            &USDSceneBuilderOptionsWrapper::GetMaterialPrimPath,
+            (boost::python::arg("self")),
+            "Gets the prim path where materials are exported to.")
+        .def(
+            "SetMaterialPrimPath",
+            &MaxUsd::USDSceneBuilderOptions::SetMaterialPrimPath,
+            (boost::python::args("self", "matPrimPath")),
+            "Sets the prim path to export materials to.")
+        .def(
+            "GetUseLastResortUSDPreviewSurfaceWriter",
+            &MaxUsd::USDSceneBuilderOptions::GetUseLastResortUSDPreviewSurfaceWriter,
+            (boost::python::arg("self")),
+            "Checks if the USD Preview Surface Material target should use the last resort shader "
+            "writer if no writer can handle the conversion from a material type to "
+            "UsdPreviewSurface,"
+            "the last resort writer will just look at the Diffuse color of the material, which is "
+            "part of the base material interface, and setup a UsdPreviewSurface with that diffuse "
+            "color.")
+        .def(
+            "SetUseLastResortUSDPreviewSurfaceWriter",
+            &MaxUsd::USDSceneBuilderOptions::SetUseLastResortUSDPreviewSurfaceWriter,
+            (boost::python::args("self", "useLastResortUSDFallbackMaterial")),
+            "Sets if the USD Preview Surface Material target should use the last resort shader "
+            "writer if no writer can handle the conversion from a material type to "
+            "UsdPreviewSurface,"
+            "the last resort writer will just look at the Diffuse color of the material, which is "
+            "part of the base material interface, and setup a UsdPreviewSurface with that diffuse "
+            "color.")
+        .def(
+            "SetDefaults",
+            &MaxUsd::USDSceneBuilderOptions::SetDefaults,
+            (boost::python::arg("self")),
+            "Sets default options.")
+        .def(
+            "GetJobContextOptions",
+            &MaxUsd::USDSceneBuilderOptions::GetJobContextOptions,
+            return_value_policy<TfPyMapToDictionary>(),
+            (boost::python::arg("self"), boost::python::arg("jobContext")),
+            "Gets the job context options for the given job context.")
+        .def(
+            "GetAnimationsPrimName",
+            &MaxUsd::USDSceneBuilderOptions::GetAnimationsPrimName,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Gets the name of the prim that will contain the animations.")
+        .def(
+            "SetAnimationsPrimName",
+            &MaxUsd::USDSceneBuilderOptions::SetAnimationsPrimName,
+            return_value_policy<return_by_value>(),
+            (boost::python::args("self", "animationsPrimName")),
+            "Sets the name of the prim that will contain the animations.")
+        .def(
+            "GetBonesPrimName",
+            &MaxUsd::USDSceneBuilderOptions::GetBonesPrimName,
+            return_value_policy<return_by_value>(),
+            (boost::python::arg("self")),
+            "Gets the name of the prim that will contain the bones.")
+        .def(
+            "SetBonesPrimName",
+            &MaxUsd::USDSceneBuilderOptions::SetBonesPrimName,
+            return_value_policy<return_by_value>(),
+            (boost::python::args("self", "bonesPrimName")),
+            "Sets the name of the prim that will contain the bones.")
+        .def(
+            "Serialize",
+            &USDSceneBuilderOptionsWrapper::Serialize,
+            boost::python::arg("self"),
+            "Serialize the options to JSON format");
+}
\ No newline at end of file
diff --git a/src/python/wrapUSDSceneBuilderOptions.h b/src/python/wrapUSDSceneBuilderOptions.h
new file mode 100644
index 0000000..a58bdbe
--- /dev/null
+++ b/src/python/wrapUSDSceneBuilderOptions.h
@@ -0,0 +1,175 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Builders/USDSceneBuilderOptions.h>
+
+class USDSceneBuilderOptionsWrapper : public MaxUsd::USDSceneBuilderOptions
+{
+public:
+    USDSceneBuilderOptionsWrapper() = default;
+
+    /**
+     * \brief Constructor.
+     * \param exportArgs the options to wrap.
+     */
+    USDSceneBuilderOptionsWrapper(const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    /**
+     * \brief Constructor from a Json formatted string.
+     * \param json the Json formatted string to create the options from.
+     */
+    USDSceneBuilderOptionsWrapper(const std::string& json);
+
+    /**
+     * \brief Gets the primvar name of a given channel.
+     * \param channel The channel from which we want the primvar name.
+     * \return The primvar name of the channel.
+     */
+    const pxr::TfToken& GetChannelPrimvarName(int channel) const;
+
+    /**
+     * \brief Sets the primvar name associated with a given map channel.
+     * \param channel The 3dsMax map channel.
+     * \param name The primvar's name.
+     */
+    void SetChannelPrimvarName(int channel, const pxr::TfToken& name);
+
+    /**
+     * \brief Gets the primvar type associated with a given max channel on export.
+     * \param channel The max mapped channel.
+     * \return The primvar type.
+     */
+    MaxUsd::MappedAttributeBuilder::Type GetChannelPrimvarType(int channel) const;
+
+    /**
+     * \brief Sets the primvar type associated with a given map channel.
+     * \param channel The 3dsMax map channel
+     * \param type The primvar's type.
+     */
+    void SetChannelPrimvarType(int channel, MaxUsd::MappedAttributeBuilder::Type type);
+
+    /**
+     * \brief Gets whether to auto-expand the primvar type based on the data (for example TexCoord2F
+     * -> TexCoord3f if some UVs are using the W component)
+     * \param channel The channel from which we want the auto expand type.
+     * \return The auto expand type of the channel.
+     */
+    bool GetChannelPrimvarAutoExpandType(int channel) const;
+
+    /**
+     * \brief Sets whether to auto-expand the primvar type based on the data (for example TexCoord2F
+     * -> TexCoord3f if some UVs are using the W component)
+     * \param channel The 3dsMax map channel.
+     * \param autoExpand True it the type should auto-expand, false otherwise.
+     */
+    void SetChannelPrimvarAutoExpandType(int channel, bool autoExpand);
+
+    /**
+     * \brief Gets whether or not to bake the object's offset transform in the geometry.
+     * \return True if we should bake, false otherwise.
+     */
+    bool GetBakeObjectOffsetTransform() const;
+
+    /**
+     * \brief Sets whether or not to bake the object's offset transform in the geometry.
+     * \param bakeObjectOffset True to bake the object offset, false otherwise.
+     */
+    void SetBakeObjectOffsetTransform(bool bakeObjectOffset);
+
+    /**
+     * \brief Gets whether or not to preserve edge orientation
+     * \return True if preserving edge orientation, false otherwise.
+     */
+    bool GetPreserveEdgeOrientation() const;
+
+    /**
+     * \brief Sets whether or not to preserve edge orientation
+     * \param preserveEdgeOrientation True to preserve the edge orientation, false otherwise.
+     */
+    void SetPreserveEdgeOrientation(bool preserveEdgeOrientation);
+
+    /**
+     * \brief Returns the export log path.
+     * \return the log's path.
+     */
+    std::string GetLogPath() const;
+
+    /**
+     * \brief Sets the export's log path.
+     * \param logPath The log path.
+     */
+    void SetLogPath(const std::string& logPath);
+
+    /**
+     * \brief Returns the logging level (info, warn, error, etc.)
+     * \return The log level.
+     */
+    MaxUsd::Log::Level GetLogLevel() const;
+
+    /**
+     * \brief Sets the export's log level.
+     * \param logLevel The log level.
+     */
+    void SetLogLevel(MaxUsd::Log::Level logLevel);
+
+    /**
+     * \brief Return the map of chasers and their respective arguments map
+     * \return The map of chasers' arguments
+     */
+    boost::python::dict GetAllChaserArgs() const;
+
+    /**
+     * \brief Sets all of the chasers' arguments from a dictionnary.
+     * {'chaser' : {'param' : 'val'}}
+     * \param args The chasers' args.
+     */
+    void SetAllChaserArgsFromDict(boost::python::dict args);
+
+    /**
+     * \brief Set all of the chasers' arguments from a list
+     * {'chaser', 'param1', 'val', 'chaser2', 'param', 'val'}
+     * \param args The chasers' args.
+     */
+    void SetAllChaserArgsFromList(boost::python::list args);
+
+    /**
+     * \brief Sets all the material conversions that should be considered in the export.
+     * \param materialConversions The set of all material conversions, as strings.
+     */
+    void SetAllMaterialConversions(const std::set<std::string>& materialConversions);
+
+    /**
+     * \brief Gets the file path to where materials are exported to.
+     * \return The file path.
+     */
+    std::string GetMaterialLayerPath() const;
+
+    /**
+     * \brief Gets the prim path where materials are exported to.
+     * \return The prim path.
+     */
+    std::string GetMaterialPrimPath() const;
+
+    /**
+     * \brief Serialize the options to a Json formatted string.
+     * \return The Json formatted string representing the options.
+     */
+    std::string Serialize();
+
+private:
+    const MaxUsd::MappedAttributeBuilder::Config GetValidPrimvarConfig(int channel) const;
+};
\ No newline at end of file
diff --git a/src/python/wrapUtilities.cpp b/src/python/wrapUtilities.cpp
new file mode 100644
index 0000000..def4a88
--- /dev/null
+++ b/src/python/wrapUtilities.cpp
@@ -0,0 +1,75 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsdObjects/MaxUsdUfe/UfeUtils.h>
+#include <MaxUsdObjects/Objects/USDStageObject.h>
+
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/UsdToolsUtils.h>
+
+#include <pxr/pxr.h>
+
+#include <ufe/pathString.h>
+
+#include <boost/python/def.hpp>
+
+using namespace std;
+using namespace boost::python;
+using namespace boost;
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+bool _openInUsdView(const std::string& usdFilePath)
+{
+    return MaxUsd::UsdToolsUtils::OpenInUsdView(MaxUsd::UsdStringToMaxString(usdFilePath).data());
+}
+
+bool _runUsdChecker(const std::string& usdFilePath, const std::string& outputPath)
+{
+    return MaxUsd::UsdToolsUtils::RunUsdChecker(
+        MaxUsd::UsdStringToMaxString(usdFilePath).data(),
+        MaxUsd::UsdStringToMaxString(outputPath).data());
+}
+
+std::string _getUsdPrimUfePath(UINT stageHandle, const std::string& primPath)
+{
+    const auto node = GetCOREInterface()->GetINodeByHandle(stageHandle);
+    if (!node) {
+        return {};
+    }
+    const auto stageObject = dynamic_cast<USDStageObject*>(node->GetObjectRef());
+    if (!stageObject) {
+        return {};
+    }
+    return Ufe::PathString::string(
+        MaxUsd::ufe::getUsdPrimUfePath(stageObject, pxr::SdfPath { primPath }));
+}
+
+void wrapUtilities()
+{
+    def("OpenInUsdView",
+        _openInUsdView,
+        boost::python::arg("usdFilePath"),
+        "Opens the usd view program given a valid path to a usd file.");
+    def("RunUsdChecker",
+        _runUsdChecker,
+        boost::python::args("usdFilePath", "outputPath"),
+        "Runs the usdchecker tool whih will validate a usd file at usdFilePath and output all "
+        "errorrs at outputPath");
+    def("GetUsdPrimUfePath",
+        _getUsdPrimUfePath,
+        boost::python::args("stageObjectHandle", "primPath"),
+        "Returns the UFE Path, associated with the given USD prim path, in the given stage.");
+}
diff --git a/src/translators/BaseWriters.cpp b/src/translators/BaseWriters.cpp
new file mode 100644
index 0000000..d8bbf71
--- /dev/null
+++ b/src/translators/BaseWriters.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CameraWriter.h"
+#include "HelperWriter.h"
+#include "MeshWriter.h"
+#include "PhotometricLightWriter.h"
+#include "ShapeWriter.h"
+#include "SkeletonWriter.h"
+#include "SkinMorpherWriter.h"
+#include "StageWriter.h"
+#include "SunPositionerWriter.h"
+
+#include <MaxUsd/Translators/PrimWriterRegistry.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+#define MAXUSD_REGISTER_BASEWRITER(writerClass)                 \
+    MaxUsdPrimWriterRegistry::RegisterBaseWriter(               \
+        [](const MaxUsdWriteJobContext& jobCtx, INode* node) {  \
+            return std::make_shared<writerClass>(jobCtx, node); \
+        },                                                      \
+        &writerClass::CanExport);
+
+// register all the base writers all at once and keep them ordered
+TF_REGISTRY_FUNCTION(MaxUsdPrimWriterRegistry)
+{
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdStageWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdSkeletonWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdSkinMorpherWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdShapeWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdMeshWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdCameraWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdPhotometricLightWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdSunPositionerWriter)
+    MAXUSD_REGISTER_BASEWRITER(MaxUsdHelperWriter)
+}
\ No newline at end of file
diff --git a/src/translators/BasisCurvesReader.cpp b/src/translators/BasisCurvesReader.cpp
new file mode 100644
index 0000000..50c51d5
--- /dev/null
+++ b/src/translators/BasisCurvesReader.cpp
@@ -0,0 +1,83 @@
+//
+// Copyright 2024 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/CurveConversion/CurveConverter.h>
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorMorpher.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorSkel.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/usd/usdGeom/basisCurves.h>
+
+#include <inode.h>
+#include <linshape.h>
+#include <simpshp.h>
+#include <simpspl.h>
+#include <splshape.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdBasisCurvesReader : public MaxUsdPrimReader
+{
+public:
+    MaxUsdBasisCurvesReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdBasisCurvesReader() = default;
+
+    bool Read() override;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdGeomBasisCurves)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdGeomBasisCurves>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdBasisCurvesReader>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdBasisCurvesReader::Read()
+{
+    const auto               prim = GetUsdPrim();
+    const UsdGeomBasisCurves basisCurvesPrim(prim);
+
+    SplineShape* shapeObj
+        = (SplineShape*)GetCOREInterface()->CreateInstance(SHAPE_CLASS_ID, splineShapeClassID);
+
+    const auto timeConfig = GetArgs().GetResolvedTimeConfig(prim.GetStage());
+    const auto startTimeCode = timeConfig.GetStartTimeCode();
+
+    size_t numberOfSplinesCreated
+        = MaxUsd::CurveConverter::ConvertToSplineShape(basisCurvesPrim, *shapeObj, startTimeCode);
+
+    if (numberOfSplinesCreated > 0) {
+        auto createdNode = MaxUsdTranslatorPrim::CreateAndRegisterNode(
+            prim, shapeObj, prim.GetName(), GetJobContext());
+
+        // position the node
+        MaxUsdTranslatorXformable::Read(prim, createdNode, GetJobContext());
+    }
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/CameraReader.cpp b/src/translators/CameraReader.cpp
new file mode 100644
index 0000000..de94d36
--- /dev/null
+++ b/src/translators/CameraReader.cpp
@@ -0,0 +1,89 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/CameraConversion/CameraConverter.h>
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+#include <MaxUsd/Translators/TranslatorMaterial.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+
+#include <pxr/usd/usdGeom/camera.h>
+
+#include <Scene/IPhysicalCamera.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+// prim reader for mesh
+class MaxUsdPrimReaderCamera final : public MaxUsdPrimReader
+{
+public:
+    MaxUsdPrimReaderCamera(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdPrimReaderCamera() override { }
+
+    bool Read() override;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdGeomCamera)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdGeomCamera>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdPrimReaderCamera>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdPrimReaderCamera::Read()
+{
+    auto prim = GetUsdPrim();
+    auto usdCamera = UsdGeomCamera(prim);
+    if (!usdCamera) {
+        return false;
+    }
+
+    MaxSDK::IPhysicalCamera* maxCamera
+        = static_cast<MaxSDK::IPhysicalCamera*>(GetCOREInterface17()->CreateInstance(
+            CAMERA_CLASS_ID, MaxSDK::IPhysicalCamera::GetClassID()));
+    if (maxCamera == nullptr) {
+        return false;
+    }
+
+    MaxUsd::CameraConverter::ToPhysicalCamera(usdCamera, maxCamera, GetJobContext());
+
+    auto createdNode = MaxUsdTranslatorPrim::CreateAndRegisterNode(
+        prim, maxCamera, prim.GetName(), GetJobContext());
+
+    // position the node
+    MaxUsdTranslatorXformable::Read(prim, createdNode, GetJobContext());
+
+    // At the time of writing, "usdview" uses "main_cam" as the name of the default camera to use
+    // when opening a USD file. For convenience, this uses the same convention in 3ds Max.
+    //
+    // In addition, the "usdview" documentation states that if multiple cameras are named
+    // "main_cam", the one that will be used will effectively be random. In the case of the
+    // importer, since we always explore the scene in a depth-first manner, the last camera with the
+    // name "main_cam" will always be used.
+    if (prim.GetName().GetString() == "main_cam") {
+        GetCOREInterface17()->GetCurrentRenderView()->SetViewCamera(createdNode);
+    }
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/CameraWriter.cpp b/src/translators/CameraWriter.cpp
new file mode 100644
index 0000000..97549ac
--- /dev/null
+++ b/src/translators/CameraWriter.cpp
@@ -0,0 +1,279 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "CameraWriter.h"
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/base/tf/diagnostic.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usd/timeCode.h>
+#include <pxr/usd/usdGeom/camera.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <Scene/IPhysicalCamera.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdCameraWriter::MaxUsdCameraWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdCameraWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateCameras()) {
+        return ContextSupport::Unsupported;
+    }
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    return object->SuperClassID() == CAMERA_CLASS_ID ? ContextSupport::Fallback
+                                                     : ContextSupport::Unsupported;
+}
+
+bool MaxUsdCameraWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    const auto& timeVal = time.GetMaxTime();
+    const auto& usdTimeCode = time.GetUsdTime();
+
+    Object* obj = sourceNode->EvalWorldState(timeVal).obj;
+
+    const auto maxCamera = dynamic_cast<GenCamera*>(obj);
+    if (maxCamera == nullptr) {
+        return false;
+    }
+
+    auto stage = targetPrim.GetStage();
+
+    pxr::UsdGeomCamera usdCamera { targetPrim };
+
+    if (time.IsFirstFrame()) {
+        // Projection type is not animatable, only need to set that up on the first frame we export.
+        pxr::TfToken projectionType = maxCamera->IsOrtho() ? pxr::UsdGeomTokens->orthographic
+                                                           : pxr::UsdGeomTokens->perspective;
+        usdCamera.CreateProjectionAttr().Set(projectionType, pxr::UsdTimeCode::Default());
+    }
+
+    const auto& displayTimeIndependentWarnings = time.IsFirstFrame();
+
+    // Clipping range:
+    if (maxCamera->GetManualClip() != 0) {
+        float nearDistance = maxCamera->GetClipDist(timeVal, CAM_HITHER_CLIP);
+        float farDistance = maxCamera->GetClipDist(timeVal, CAM_YON_CLIP);
+
+        if (nearDistance + FLT_EPSILON > FLT_MIN && farDistance + FLT_EPSILON > FLT_MIN) {
+            pxr::GfVec2f clippingRange { nearDistance, farDistance };
+            usdCamera.CreateClippingRangeAttr().Set(clippingRange, usdTimeCode);
+        }
+    }
+
+    const auto maxPhysicalCamera = dynamic_cast<MaxSDK::IPhysicalCamera*>(obj);
+    if (maxPhysicalCamera) {
+        const auto camParamBlock = maxPhysicalCamera->GetParamBlock(0);
+        Interval   valid = FOREVER;
+        // Focus Distance
+        {
+            float focusDistance = camParamBlock->GetInt(10 /*pb_specify_focus*/, timeVal, valid)
+                ? camParamBlock->GetFloat(9 /*pb_focus_distance*/, timeVal, valid)
+                : maxCamera->GetTDist(timeVal);
+            usdCamera.CreateFocusDistanceAttr().Set(focusDistance, usdTimeCode);
+        }
+
+        // Focal Length
+        // The use of the effective lens focal length would counteract lens breathing
+        float focal = maxPhysicalCamera->GetEffectiveLensFocalLength(timeVal, valid)
+            * static_cast<float>(GetSystemUnitScale(UNITS_MILLIMETERS));
+        usdCamera.CreateFocalLengthAttr().Set(focal, usdTimeCode);
+
+        // Aperture
+        // in order to compensate for the possible zoom factor
+        // the aperture width is changed and is not based on film width
+        //    w != maxPhysicalCamera->GetFilmWidth(context.maxTimeCode, FOREVER) *
+        //    MaxSDKSupport::units::GetSystemUnitScale(UNITS_MILLIMETERS);
+        // if the zoom factor is 1.0, the aperture width is equivalent to film width as expected
+        float w = tan(maxCamera->GetFOV(timeVal) / 2.0f) * focal * 2.0f;
+        auto  aspect = GetCOREInterface()->GetRendImageAspect();
+        usdCamera.CreateHorizontalApertureAttr().Set(w, usdTimeCode);
+        float v = w / aspect;
+        usdCamera.CreateVerticalApertureAttr().Set(v, usdTimeCode);
+
+        // Lens Aperture
+        float fstop = maxPhysicalCamera->GetLensApertureFNumber(timeVal, valid);
+        usdCamera.CreateFStopAttr().Set(fstop, usdTimeCode);
+
+        // shutter open/close (all frame related time)
+        // values are converted to USD time frame reference
+        auto MaxFrameToUSDTime = [&stage](double time) {
+            DbgAssert(stage->GetTimeCodesPerSecond() != 0);
+            return time * stage->GetTimeCodesPerSecond() / (GetTicksPerFrame() / 4800.f);
+        };
+
+        // only set the open attribute of the property if the camera attribute is enabled
+        // otherwise let the shutter offset be set to 0 (default)
+        bool offsetEnabled
+            = camParamBlock->GetInt(17 /*shutter_offset_enabled*/, timeVal, valid) == 1;
+        double shutterOffset
+            = offsetEnabled ? maxPhysicalCamera->GetShutterOffsetInFrames(timeVal, valid) : 0.0;
+        double shutterDuration = maxPhysicalCamera->GetShutterDurationInFrames(timeVal, valid);
+        if (offsetEnabled) {
+            usdCamera.CreateShutterOpenAttr().Set(MaxFrameToUSDTime(shutterOffset), usdTimeCode);
+        }
+        usdCamera.CreateShutterCloseAttr().Set(
+            MaxFrameToUSDTime(shutterOffset + shutterDuration), usdTimeCode);
+
+        // exposure
+        usdCamera.CreateExposureAttr().Set(
+            maxPhysicalCamera->GetEffectiveEV(timeVal, valid), usdTimeCode);
+
+        // Aperture offset
+        Point2 offset = maxPhysicalCamera->GetFilmPlaneOffset(timeVal, valid);
+        if (offset != Point2(0.0f, 0.0f)) {
+            // The offset value we get is a percentage from the film width
+            // The negative sign is the offset direction USD applies on the camera
+            offset[0] = -(offset[0] * w);
+            offset[1] = -(offset[1] * v * aspect);
+            usdCamera.CreateHorizontalApertureOffsetAttr().Set(offset[0], usdTimeCode);
+            usdCamera.CreateVerticalApertureOffsetAttr().Set(offset[1], usdTimeCode);
+        }
+
+        Point2 tilt = maxPhysicalCamera->GetTiltCorrection(timeVal, valid);
+        if (tilt != Point2(0.0f, 0.0f)) {
+            MaxUsd::Log::Warn(
+                L"The tilt correction applied to '{0}' is not supported by USD, and will not get "
+                L"exported at timeCode {1}.",
+                sourceNode->GetName(),
+                usdTimeCode.GetValue());
+        }
+
+        // bokeh - depth of field
+        // not supported
+        {
+            if (maxPhysicalCamera->GetBokehShape(timeVal, valid)
+                    != MaxSDK::IPhysicalCamera::BokehShape::Circular
+                || maxPhysicalCamera->GetBokehCenterBias(timeVal, valid) != 0.0f
+                || maxPhysicalCamera->GetBokehOpticalVignetting(timeVal, valid) != 0.0f
+                || maxPhysicalCamera->GetBokehAnisotropy(timeVal, valid) != 0.0f) {
+                MaxUsd::Log::Warn(
+                    L"The Bokeh settings of '{0}' is not supported by USD, and will not get "
+                    L"exported "
+                    L"at timeCode {1}.",
+                    sourceNode->GetName(),
+                    usdTimeCode.GetValue());
+            }
+        }
+
+        // lens distortion
+        // not supported
+        {
+            if (maxPhysicalCamera->GetLensDistortionType(timeVal, valid)
+                != MaxSDK::IPhysicalCamera::LensDistortionType::None) {
+                MaxUsd::Log::Warn(
+                    L"Lens distortion settings of '{0}' is not supported by USD, and will not get "
+                    L"exported at timeCode {1}.",
+                    sourceNode->GetName(),
+                    usdTimeCode.GetValue());
+            }
+        }
+    } else // if not a PhysicalCamera
+    {
+        MSTR cameraClassName;
+        maxCamera->GetClassName(cameraClassName);
+        int cameraType = maxCamera->Type();
+
+        if (displayTimeIndependentWarnings) {
+            MaxUsd::Log::Warn(
+                L"Limited support on '{0}[{1}]' cameras ('{2}'). Use a physical camera to get best "
+                L"results.",
+                (cameraType == 0
+                     ? _T("Free Camera")
+                     : (cameraType == 1 ? _T("Target Camera") : _T("Orthographic Camera"))),
+                cameraClassName.data(),
+                sourceNode->GetName());
+        }
+
+        // Focus Distance
+        // only set the Focus Distance attribute on target camera
+        if (maxCamera->Type() != 0 /* free camera */) {
+            // The value returned from camera.GetTDist() doesn't update over animations.
+            // Calculate the targetDistance ourselves.
+            float      targetDistance;
+            const auto target = sourceNode->GetTarget();
+            if (!target) {
+                if (displayTimeIndependentWarnings) {
+                    MaxUsd::Log::Error(
+                        L"Unable to recompute the target distance for camera {0}.",
+                        sourceNode->GetName());
+                }
+                targetDistance = maxCamera->GetTDist(timeVal);
+            } else {
+                const Point3 targetPos = target->GetNodeTM(timeVal).GetTrans();
+                const Point3 cameraPos = sourceNode->GetNodeTM(timeVal).GetTrans();
+                targetDistance = Length(targetPos - cameraPos);
+            }
+            usdCamera.CreateFocusDistanceAttr().Set(targetDistance, usdTimeCode);
+        }
+        Interval valid = FOREVER;
+        // Not taking into account the Multi-Pass Focal Depth that could be specified by the user
+        if (maxCamera->GetMultiPassEffectEnabled(timeVal, valid)) {
+            MaxUsd::Log::Warn(
+                L"The Multi-Pass Effect on '{0}' will not get exported at timeCode {1}.",
+                sourceNode->GetName(),
+                usdTimeCode.GetValue());
+        }
+
+        // Focal Length
+        {
+            // classic FOV equation
+            // see maxsdk\samples\objects\camera.h:	float FOVtoMM(float fov);
+            // focal and aperture in mm and is not subjected to units translation
+            float w = GetCOREInterface()->GetRendApertureWidth();
+            float focal;
+            float tanFov = tan(maxCamera->GetFOV(timeVal) / 2.0f);
+            if (tanFov == 0.0f) {
+                focal = FLT_MAX;
+            } else {
+                focal = float((0.5f * w) / tanFov);
+            }
+            usdCamera.CreateFocalLengthAttr().Set(focal, usdTimeCode);
+        }
+        // Aperture
+        {
+            auto aspect = GetCOREInterface()->GetRendImageAspect();
+            // aperture in mm and is not subjected to units translation
+            float w = GetCOREInterface()->GetRendApertureWidth();
+            usdCamera.CreateHorizontalApertureAttr().Set(w);
+
+            float verticalAperture;
+            if (aspect == 0.0f) {
+                verticalAperture = FLT_MAX;
+            } else {
+                verticalAperture = w / aspect;
+            }
+            usdCamera.CreateVerticalApertureAttr().Set(verticalAperture);
+        }
+    }
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/CameraWriter.h b/src/translators/CameraWriter.h
new file mode 100644
index 0000000..ba18bff
--- /dev/null
+++ b/src/translators/CameraWriter.h
@@ -0,0 +1,40 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdCameraWriter : public MaxUsdPrimWriter
+{
+public:
+    MaxUsdCameraWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Camera"); };
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Camera; };
+
+    WStr GetWriterName() override { return L"Camera writer"; };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/DLLEntry.h b/src/translators/DLLEntry.h
new file mode 100644
index 0000000..14bf038
--- /dev/null
+++ b/src/translators/DLLEntry.h
@@ -0,0 +1,19 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <windows.h>
+extern HINSTANCE hInstance;
diff --git a/src/translators/DllEntry.cpp b/src/translators/DllEntry.cpp
new file mode 100644
index 0000000..7344b25
--- /dev/null
+++ b/src/translators/DllEntry.cpp
@@ -0,0 +1,34 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "DLLEntry.h"
+
+HINSTANCE hInstance;
+
+// This function is called by Windows when the DLL is loaded.  This
+// function may also be called many times during time critical operations
+// like rendering.  Therefore developers need to be careful what they
+// do inside this function.  In the code below, note how after the DLL is
+// loaded the first time only a few statements are executed.
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, ULONG fdwReason, LPVOID /*lpvReserved*/)
+{
+    if (fdwReason == DLL_PROCESS_ATTACH) {
+        // Hang on to this DLL's instance handle.
+        hInstance = hinstDLL;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return (TRUE);
+}
diff --git a/src/translators/HelperWriter.cpp b/src/translators/HelperWriter.cpp
new file mode 100644
index 0000000..f128063
--- /dev/null
+++ b/src/translators/HelperWriter.cpp
@@ -0,0 +1,69 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "HelperWriter.h"
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/usdGeom/camera.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdHelperWriter::MaxUsdHelperWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdHelperWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    if (object->ClassID() == Class_ID { POINTHELP_CLASS_ID, 0 }
+        || object->CanConvertToType({ DUMMY_CLASS_ID, 0 })) {
+        return ContextSupport::Fallback;
+    }
+    return ContextSupport::Unsupported;
+}
+
+TfToken MaxUsdHelperWriter::GetObjectPrimSuffix()
+{
+    const auto object = GetNode()->GetObjectRef();
+    if (object->ClassID() == Class_ID { POINTHELP_CLASS_ID, 0 }) {
+        return TfToken("Point");
+    }
+    return TfToken("Dummy");
+}
+
+bool MaxUsdHelperWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    // No properties to write. We just want an Xform.
+    return true;
+}
+
+Interval MaxUsdHelperWriter::GetValidityInterval(const TimeValue&)
+{
+    // We do not export any properties, and so nothing is animated, what we export is valid
+    // "forever".
+    return FOREVER;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/HelperWriter.h b/src/translators/HelperWriter.h
new file mode 100644
index 0000000..8b911ff
--- /dev/null
+++ b/src/translators/HelperWriter.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdHelperWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdHelperWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    Interval GetValidityInterval(const TimeValue& time) override;
+
+    TfToken GetObjectPrimSuffix() override;
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Xform; };
+
+    WStr GetWriterName() override { return L"Helper writer"; };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/LightReader.cpp b/src/translators/LightReader.cpp
new file mode 100644
index 0000000..c8dc2b7
--- /dev/null
+++ b/src/translators/LightReader.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorLight.h>
+
+#include <pxr/usd/usdLux/cylinderLight.h>
+#include <pxr/usd/usdLux/diskLight.h>
+#include <pxr/usd/usdLux/rectLight.h>
+#include <pxr/usd/usdLux/sphereLight.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+PXR_MAXUSD_DEFINE_READER(UsdLuxCylinderLight, usdPrim, args, context)
+{
+    return MaxUsdTranslatorLight::Read(usdPrim, args, context);
+}
+
+PXR_MAXUSD_DEFINE_READER(UsdLuxRectLight, usdPrim, args, context)
+{
+    return MaxUsdTranslatorLight::Read(usdPrim, args, context);
+}
+
+PXR_MAXUSD_DEFINE_READER(UsdLuxSphereLight, usdPrim, args, context)
+{
+    return MaxUsdTranslatorLight::Read(usdPrim, args, context);
+}
+
+PXR_MAXUSD_DEFINE_READER(UsdLuxDiskLight, usdPrim, args, context)
+{
+    return MaxUsdTranslatorLight::Read(usdPrim, args, context);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/MaxUsd_Translators.def b/src/translators/MaxUsd_Translators.def
new file mode 100644
index 0000000..3e60b30
--- /dev/null
+++ b/src/translators/MaxUsd_Translators.def
@@ -0,0 +1,4 @@
+LIBRARY MaxUsd_Translators.dll
+EXPORTS
+SECTIONS
+   .data READ WRITE
diff --git a/src/translators/MaxUsd_Translators.vcxproj b/src/translators/MaxUsd_Translators.vcxproj
new file mode 100644
index 0000000..69ff9d7
--- /dev/null
+++ b/src/translators/MaxUsd_Translators.vcxproj
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ManualScript Include="$(ProjectDir)plugInfo.json" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="CameraWriter.h" />
+    <ClInclude Include="DLLEntry.h" />
+    <ClInclude Include="HelperWriter.h" />
+    <ClInclude Include="MeshWriter.h" />
+    <ClInclude Include="MtlSwitcherWriter.h" />
+    <ClInclude Include="PhotometricLightWriter.h" />
+    <ClInclude Include="ShapeWriter.h" />
+    <ClInclude Include="SkeletonWriter.h" />
+    <ClInclude Include="SkinMorpherWriter.h" />
+    <ClInclude Include="StageWriter.h" />
+    <ClInclude Include="SunPositionerWriter.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="BaseWriters.cpp" />
+    <ClCompile Include="CameraReader.cpp" />
+    <ClCompile Include="CameraWriter.cpp" />
+    <ClCompile Include="DllEntry.cpp" />
+    <ClCompile Include="HelperWriter.cpp" />
+    <ClCompile Include="LightReader.cpp" />
+    <ClCompile Include="MeshReader.cpp" />
+    <ClCompile Include="MeshWriter.cpp" />
+    <ClCompile Include="MtlSwitcherWriter.cpp" />
+    <ClCompile Include="NurbsCurvesReader.cpp" />
+    <ClCompile Include="PhotometricLightWriter.cpp" />
+    <ClCompile Include="ScopeReader.cpp" />
+    <ClCompile Include="BasisCurvesReader.cpp" />
+    <ClCompile Include="ShapeWriter.cpp" />
+    <ClCompile Include="SkeletonWriter.cpp" />
+    <ClCompile Include="SkelReader.cpp" />
+    <ClCompile Include="SkinMorpherWriter.cpp" />
+    <ClCompile Include="StageWriter.cpp" />
+    <ClCompile Include="SunPositionerWriter.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="MaxUsd_Translators.def" />
+    <None Include="plugInfo.json" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>MaxUsd_Translators</ProjectName>
+    <Keyword>QtVS_v302</Keyword>
+    <ProjectGuid>{3F78B1EF-5A80-42C4-814B-22FD43912DD7}</ProjectGuid>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(SolutionDir)\3dsmax.component.settings.props" />
+    <Import Project="$(SolutionDir)\USD.props" />
+  </ImportGroup>
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <EmbedManifest>true</EmbedManifest>
+    <TargetName>$(ProjectName)</TargetName>
+    <TargetExt>.dll</TargetExt>
+    <OutDir>$(ContentsDir)plugin\$(ProjectName)\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WholeProgramOptimization>false</WholeProgramOptimization>
+      <PreprocessorDefinitions>MFB_PACKAGE_NAME=$(ProjectName);MFB_ALT_PACKAGE_NAME=$(ProjectName);MFB_PACKAGE_MODULE=$(ProjectName);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir);$(QtInc);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <WarningLevel>Level3</WarningLevel>
+      <!--DisableSpecificWarnings>4251;4275;26495;%(DisableSpecificWarnings)</DisableSpecificWarnings-->
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <RemoveUnreferencedCodeData>false</RemoveUnreferencedCodeData>
+      <ForcedIncludeFiles>..\usd_banned.h</ForcedIncludeFiles>
+      <AdditionalOptions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">/Zc:__cplusplus /Zc:inline-</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <ImportLibrary>$(LibDir)\$(TargetName).lib</ImportLibrary>
+      <AdditionalDependencies>maxUsd.lib;core.lib;geom.lib;edmodel.lib;maxutil.lib;maxscrpt.lib;Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(LibDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+  <Target Name="CopyManualScript" BeforeTargets="ClCompile">
+    <Copy SourceFiles="@(ManualScript)" DestinationFiles="$(OutDir)plugInfo.json" SkipUnchangedFiles="true" />
+  </Target>
+</Project>
\ No newline at end of file
diff --git a/src/translators/MeshReader.cpp b/src/translators/MeshReader.cpp
new file mode 100644
index 0000000..1709a40
--- /dev/null
+++ b/src/translators/MeshReader.cpp
@@ -0,0 +1,203 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/ReadJobContext.h>
+#include <MaxUsd/Translators/TranslatorMaterial.h>
+#include <MaxUsd/Translators/TranslatorMorpher.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdSkel/bindingAPI.h>
+
+#include <stdmat.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+namespace {
+bool assignMaterial(const UsdGeomMesh& mesh, INode* meshObj, MaxUsdReadJobContext& context)
+{
+    auto args = context.GetArgs();
+    if (args.GetTranslateMaterials()) {
+        // If a material is bound, create (or reuse if already present) and assign it
+        // If no binding is present, assign the mesh to the default shader
+        return MaxUsdTranslatorMaterial::AssignMaterial(args, mesh, meshObj, context);
+    }
+    return false;
+}
+} // namespace
+
+// prim reader for mesh
+class MaxUsdPrimReaderMesh final : public MaxUsdPrimReader
+{
+public:
+    MaxUsdPrimReaderMesh(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdPrimReaderMesh() override { }
+
+    bool Read() override;
+
+    void InstanceCreated(const UsdPrim& prim, INode* instance) override;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdGeomMesh)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdGeomMesh>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdPrimReaderMesh>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdPrimReaderMesh::Read()
+{
+    auto prim = GetUsdPrim();
+    auto mesh = UsdGeomMesh(prim);
+    if (!mesh) {
+        return false;
+    }
+
+    // skinned meshes have the joints weights set to a specific number of vertices
+    // check if the mesh is skinned to prevent the possibility of having some vertices cleaned when
+    // converted to max
+    SdfPathVector     skelTargets;
+    UsdSkelBindingAPI binding = UsdSkelBindingAPI::Get(GetJobContext().GetStage(), prim.GetPath());
+    binding.GetSkeletonRel().GetTargets(&skelTargets);
+
+    // Then, proceed to conversion
+    std::map<int, std::string> channelNames;
+    MultiMtl*                  materialBind = nullptr;
+    MaxUsd::MeshConverter      meshConverter;
+    const auto                 timeConfig = GetArgs().GetResolvedTimeConfig(prim.GetStage());
+    const auto                 startTimeCode = timeConfig.GetStartTimeCode();
+    PolyObject*                meshObject = meshConverter.ConvertToPolyObject(
+        mesh,
+        GetArgs().GetPrimvarMappingOptions(),
+        channelNames,
+        &materialBind,
+        startTimeCode,
+        skelTargets.empty());
+    if (meshObject == nullptr) {
+        return false;
+    }
+
+    auto createdNode = MaxUsdTranslatorPrim::CreateAndRegisterNode(
+        prim, meshObject, prim.GetName(), GetJobContext());
+
+    // Configure the morpher modifier, if the mesh prim have blendshapes defined.
+    MaxUsdTranslatorMorpher::Read(prim, createdNode, GetJobContext());
+
+    // position the node
+    MaxUsdTranslatorXformable::Read(prim, createdNode, GetJobContext());
+
+    // Mesh Node configuration
+    pxr::VtArray<pxr::GfVec3f> colorArray;
+    pxr::UsdAttribute          displayColorAttribute = mesh.GetDisplayColorAttr();
+    displayColorAttribute.Get(&colorArray, startTimeCode);
+    Color diffuseDisplayColor {};
+
+    bool hasAuthoredColor = false;
+    // If a display color is specified, use it as wire color.
+    if (!colorArray.empty()) {
+        auto color = colorArray[0];
+        diffuseDisplayColor = { color[0], color[1], color[2] };
+        createdNode->SetWireColor(diffuseDisplayColor.toRGB());
+        hasAuthoredColor = true;
+    }
+
+    // If the original prim had material subsets, we generated a multi-material along with the
+    // object. Set it to the node now, and connect a simple physical material to all its slots to
+    // represent the displayColor.
+    const auto subsetsMaterial = materialBind;
+    if (subsetsMaterial != nullptr) {
+        createdNode->SetMtl(subsetsMaterial);
+        auto colorMtl = NewPhysicalMaterial(_T("USDImporter"));
+        if (hasAuthoredColor) {
+            colorMtl->SetDiffuse(
+                diffuseDisplayColor,
+                MaxUsd::GetMaxTimeValueFromUsdTimeCode(
+                    prim.GetStage(), timeConfig.GetStartTimeCode()));
+        }
+        colorMtl->SetName(L"displayColor");
+
+        IParamBlock2* mtlParamBlock2 = subsetsMaterial->GetParamBlockByID(0);
+        short         paramId = MaxUsd::FindParamId(mtlParamBlock2, L"materialIDList");
+        if (paramId < 0) {
+            MaxUsd::Log::Error(
+                "Unable to find materialIDList param id on multiMaterial param block.");
+        } else {
+            Interval valid = FOREVER;
+            for (int i = 0; i < subsetsMaterial->NumSubs(); ++i) {
+                int matId;
+                mtlParamBlock2->GetValue(paramId, 0, matId, valid, i);
+                subsetsMaterial->SetSubMtl(matId, colorMtl);
+            }
+        }
+    }
+
+    // Set channel names, via the channel info interface exposed in a utility plugin.
+    // Dirty trick to get the ChannelInfo interface...
+    const auto CHANNEL_INFO_INTERFACE_ID = Interface_ID(0x438a1122, 0xef966644);
+    const auto NAME_CHANNEL_FUNC_ID = 9;
+    auto       channelInfoInterface
+        = static_cast<FPInterface*>(GetCOREInterface(CHANNEL_INFO_INTERFACE_ID));
+    if (!channelInfoInterface) {
+        MaxUsd::Log::Error(
+            "Unable to retrieve the ChannelInfo interface. Mapped channels will not be named.");
+    } else {
+        for (const auto& channelEntry : channelNames) {
+            const auto channelName = MaxUsd::UsdStringToMaxString(channelEntry.second);
+            // Signature : NameChannel(TYPE_INODE, TYPE_INT, TYPE_INT, TYPE_STRING)
+            FPParams params(
+                4,
+                TYPE_INODE,
+                createdNode,
+                TYPE_INT,
+                3,
+                TYPE_INT,
+                channelEntry.first,
+                TYPE_STRING,
+                channelName.data());
+            const auto status = channelInfoInterface->Invoke(NAME_CHANNEL_FUNC_ID, &params);
+            if (status != FPS_OK) {
+                MaxUsd::Log::Error(
+                    "Error while attempting to name channel {} to {}.",
+                    channelEntry.first,
+                    channelEntry.second);
+            }
+        }
+    }
+
+    // assign material
+    assignMaterial(mesh, createdNode, GetJobContext());
+
+    return true;
+}
+
+void MaxUsdPrimReaderMesh::InstanceCreated(const UsdPrim& prim, INode* instance)
+{
+    auto mesh = UsdGeomMesh(prim);
+    if (mesh) {
+        assignMaterial(mesh, instance, GetJobContext());
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/MeshWriter.cpp b/src/translators/MeshWriter.cpp
new file mode 100644
index 0000000..7edff45
--- /dev/null
+++ b/src/translators/MeshWriter.cpp
@@ -0,0 +1,89 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MeshWriter.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/usdGeom/mesh.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdMeshWriter::MaxUsdMeshWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdMeshWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateMeshes()) {
+        return ContextSupport::Unsupported;
+    }
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    if (object->CanConvertToType({ TRIOBJ_CLASS_ID, 0 })
+        && object->SuperClassID() != SHAPE_CLASS_ID) {
+        return ContextSupport::Fallback;
+    }
+    return ContextSupport::Unsupported;
+}
+
+MaxUsd::XformSplitRequirement MaxUsdMeshWriter::RequiresXformPrim()
+{
+    if (!GetExportArgs().GetAllowNestedGprims() && GetNode()->NumberOfChildren() > 0) {
+        return MaxUsd::XformSplitRequirement::Always;
+    }
+    return !GetExportArgs().GetMeshConversionOptions().GetBakeObjectOffsetTransform()
+        ? MaxUsd::XformSplitRequirement::ForOffsetObjects
+        : MaxUsd::XformSplitRequirement::Never;
+}
+
+bool MaxUsdMeshWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    const auto timeConfig = GetExportArgs().GetResolvedTimeConfig();
+
+    // Currently, 3dsMax Shapes (for example, splines), are converted to poly prior to export. This
+    // may not always give the best results. Until we can provide smarter results, log a warning
+    // (only once, on the first frame).
+    if (time.IsFirstFrame()) {
+        const auto object = sourceNode->EvalWorldState(time.GetMaxTime()).obj;
+        if (object->SuperClassID() == SHAPE_CLASS_ID) {
+            MaxUsd::Log::Warn(
+                L"{0} is a Shape, it will be converted to Poly prior to export.",
+                sourceNode->GetName());
+        }
+    }
+    MaxUsd::MeshConverter meshConverter;
+    pxr::UsdGeomMesh      prim = meshConverter.ConvertToUSDMesh(
+        sourceNode,
+        targetPrim.GetStage(),
+        targetPrim.GetPrimPath(),
+        GetExportArgs().GetMeshConversionOptions(),
+        applyOffsetTransform,
+        timeConfig.IsAnimated(),
+        time);
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/MeshWriter.h b/src/translators/MeshWriter.h
new file mode 100644
index 0000000..8b15ea0
--- /dev/null
+++ b/src/translators/MeshWriter.h
@@ -0,0 +1,43 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdMeshWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdMeshWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override;
+
+    bool HandlesObjectOffsetTransform() override { return true; };
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Shape"); };
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Mesh; };
+
+    WStr GetWriterName() override { return L"Mesh writer"; };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/MtlSwitcherWriter.cpp b/src/translators/MtlSwitcherWriter.cpp
new file mode 100644
index 0000000..7f6d08f
--- /dev/null
+++ b/src/translators/MtlSwitcherWriter.cpp
@@ -0,0 +1,446 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "MtlSwitcherWriter.h"
+#ifdef IS_MAX2024_OR_GREATER
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/ShaderWriterRegistry.h>
+#include <MaxUsd/Translators/ShadingUtils.h>
+
+#include <pxr/usd/usd/editContext.h>
+#include <pxr/usd/usdShade/materialBindingAPI.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <Materials/MaterialSwitcherInterface.h>
+
+PXR_NAMESPACE_USING_DIRECTIVE
+
+PXR_MAXUSD_REGISTER_SHADER_WRITER(MATERIAL_SWITCHER_CLASS_ID, MtlSwitcherWriter);
+
+MtlSwitcherWriter::MtlSwitcherWriter(
+    Mtl*                   material,
+    const SdfPath&         usdPath,
+    MaxUsdWriteJobContext& jobCtx)
+    : MaxUsdShaderWriter(material, usdPath, jobCtx)
+{
+    GetTopLevelMtlDependencies(variantMaterials);
+    exportStyle = jobCtx.GetArgs().GetMtlSwitcherExportStyle();
+    // if only one material in the switcher, fallback to use only a reference to that material; no
+    // need for a variant
+    if (variantMaterials.size() == 1
+        && exportStyle == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets) {
+        exportStyle = MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly;
+    }
+}
+
+void MtlSwitcherWriter::Write()
+{
+    if (variantMaterials.empty()) {
+        // no material binding required
+        // the material switcher is empty
+        MaxUsd::Log::Warn(
+            "Material Switcher \"{0}\" is empty. No material binding will be exported.",
+            MaxUsd::MaxStringToUsdString(GetMaterial()->GetName()));
+        return;
+    }
+
+    UsdPrim usdMaterial = GetUsdStage()->GetPrimAtPath(GetUsdPath().GetParentPath());
+
+    if (exportStyle == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets) {
+        UsdVariantSet variantSet = usdMaterial.GetVariantSets().AddVariantSet("shadingVariant");
+
+        // Discover if one of the material is a Multi material, the export flow will be different.
+        for (const auto variant : variantMaterials) {
+            if (variant->IsMultiMtl()) {
+                hasMultiSubDependency = true;
+                break;
+            }
+        }
+    } else if (
+        exportStyle == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly) {
+        MaxSDK::MtlSwitcherInterface* msi = static_cast<MaxSDK::MtlSwitcherInterface*>(
+            GetMaterial()->GetInterface(MTL_SWITCHER_ACCESS_INTERFACE));
+        Mtl* activeMtl = msi->GetActiveMtl();
+        if (activeMtl->IsMultiMtl()) {
+            hasMultiSubDependency = true;
+        } else {
+            auto references = usdMaterial.GetReferences();
+            references.AddInternalReference(SdfPath());
+        }
+    }
+
+    if (hasMultiSubDependency) {
+        auto bindings = writeJobCtx.GetMaterialBindings();
+        auto myMtl = GetMaterial();
+        auto it
+            = std::find_if(bindings.begin(), bindings.end(), [myMtl](const MaterialBinding& mb) {
+                  return mb.GetMaterial() == myMtl;
+              });
+
+        if (it == bindings.end()) {
+            // not supported for now if this switcher has a Multi material connected and is nested
+            // in the Shader Tree
+            MaxUsd::Log::Warn(
+                "Material Switcher \"{0}\" cannot be exported, the export of a Material switcher "
+                "with a Multi material dependency"
+                " is supported only when directly connected to an object.",
+                MaxUsd::MaxStringToUsdString(myMtl->GetName()));
+            return;
+        }
+
+        auto geomBindPaths = it->GetBindings();
+
+        // Used to keep track of the material IDs set discovered.
+        std::vector<std::set<int>> matIDsSets;
+        for (auto& geomBindPath : geomBindPaths) {
+            auto geomPrim = GetUsdStage()->GetPrimAtPath(geomBindPath);
+
+            if (geomPrim.IsInstance()) {
+                auto protoPrim = geomPrim.GetPrototype().GetChildren().front();
+                if (std::find(geomBindPaths.begin(), geomBindPaths.end(), protoPrim.GetPath())
+                    != geomBindPaths.end()) {
+                    // Nothing to do for this instance.
+                    continue;
+                }
+                // This instance has a different material than its prototype, break it.
+                else {
+                    // Make sure the geom edit are done on the root layer.
+                    // Could be that the current target is a material sublayer.
+                    UsdEditContext editContext(GetUsdStage(), GetUsdStage()->GetRootLayer());
+                    UsdShadeMaterialBindingAPI bindingAPI(protoPrim);
+                    auto                       subsetToCopy = bindingAPI.GetMaterialBindSubsets();
+                    if (!subsetToCopy.empty()) {
+                        geomPrim = MaxUsdShadingUtils::BreakInstancingAndCopySubset(
+                            GetUsdStage(), geomPrim, protoPrim, subsetToCopy);
+                        geomBindPath = geomPrim.GetPath();
+                    }
+                }
+            }
+
+            std::set<int> materialIdsSet;
+            for (auto child : geomPrim.GetAllChildren()) {
+                if (child.IsA<UsdGeomSubset>()) {
+                    materialIdsSet.insert(
+                        MaxUsd::MeshConverter::GetMaterialIdFromCustomData(child));
+                }
+            }
+
+            if (materialIdsSet.empty()) {
+                // No geomSubSet, look for the MatID on the prim itself.
+                int matId = MaxUsd::MeshConverter::GetMaterialIdFromCustomData(geomPrim);
+                if (matId == -1) {
+                    // Didn't find the custom data, skip this Prim.
+                    continue;
+                }
+                materialIdsSet.insert(matId);
+            }
+            // A bundle is used to represent geometries that share the same Material IDs.
+            // In a 3dsMax scene with the following object :
+            //	2 boxes with MatIDs : 1-6
+            //	1 Sphere with MatID : 2
+            //	1 Box with all faces set to MatID : 2
+            // The process will end up with two bundles :
+            //	Bundle 1 for the boxes 1-6
+            //	Bundle 2 for the Sphere and the box using only matID 2.
+            // In this simple case the bundle idea is probably not needed because the material
+            // overflow behavior of 3dsMax can't go wrong. But in general if the switcher is
+            // assigned to multiple objects with different sets of Material IDs you can end up in
+            // cases where matID X on both object is not going to be represented by the same
+            // material.
+            CreateVariantBundle(geomBindPath, materialIdsSet, matIDsSets);
+        }
+
+        int bundleCount = 0;
+        for (auto& variantBundle : variantBundles) {
+            // Create a number of materials inside the Material Switcher Prim that represents the
+            // bundle material IDs. The variant set will use these materials to add the references
+            // to the actual materials without having to alter the bindings.
+            for (int i : variantBundle.matSetIdx) {
+                TfToken subName { GetUsdPath().GetNameToken().GetString() + "_Set_"
+                                  + std::to_string(bundleCount + 1) + "_MatID_"
+                                  + std::to_string(i + 1) };
+                variantBundle.subObjsMatPrims.push_back(pxr::UsdShadeMaterial::Define(
+                    GetUsdStage(), GetUsdPath().GetParentPath().AppendChild(subName)));
+            }
+            bundleCount++;
+        }
+    }
+}
+
+MaxUsdShaderWriter::ContextSupport
+MtlSwitcherWriter::CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    return ContextSupport::Fallback;
+}
+
+bool MtlSwitcherWriter::IsMaterialTargetAgnostic() { return true; }
+
+void MtlSwitcherWriter::GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const
+{
+    if (writeJobCtx.GetArgs().GetMtlSwitcherExportStyle()
+        == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly) {
+        // only export active material
+        MaxSDK::MtlSwitcherInterface* msi = static_cast<MaxSDK::MtlSwitcherInterface*>(
+            GetMaterial()->GetInterface(MTL_SWITCHER_ACCESS_INTERFACE));
+        const auto activeMtl = msi->GetActiveMtl();
+
+        if (activeMtl == nullptr) {
+            return;
+        }
+
+        if (activeMtl->IsMultiMtl()) {
+            for (int i = 0; i < activeMtl->NumSubMtls(); ++i) {
+                if (auto multiSubMtl = activeMtl->GetSubMtl(i)) {
+                    subMtl.push_back(multiSubMtl);
+                }
+            }
+        } else {
+            subMtl.push_back(activeMtl);
+        }
+        return;
+    }
+
+    for (int i = 0; i < GetMaterial()->NumSubMtls(); ++i) {
+        if (auto mtl = GetMaterial()->GetSubMtl(i)) {
+            if (mtl->IsMultiMtl()) {
+                // if the sub material is a Multi sub material, we need to export all the sub
+                // materials
+                for (int j = 0; j < mtl->NumSubMtls(); ++j) {
+                    if (auto multiSubMtl = mtl->GetSubMtl(j)) {
+                        subMtl.push_back(multiSubMtl);
+                    }
+                }
+            } else {
+                subMtl.push_back(mtl);
+            }
+        }
+    }
+}
+
+void MtlSwitcherWriter::GetTopLevelMtlDependencies(std::vector<Mtl*>& subMtl) const
+{
+    if (writeJobCtx.GetArgs().GetMtlSwitcherExportStyle()
+        == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly) {
+        // only export active material
+        MaxSDK::MtlSwitcherInterface* msi = static_cast<MaxSDK::MtlSwitcherInterface*>(
+            GetMaterial()->GetInterface(MTL_SWITCHER_ACCESS_INTERFACE));
+        auto activeMtl = msi->GetActiveMtl();
+        if (activeMtl != nullptr) {
+            subMtl.push_back(activeMtl);
+        }
+        return;
+    }
+    __super::GetSubMtlDependencies(subMtl);
+}
+
+void MtlSwitcherWriter::CreateVariantBundle(
+    const SdfPath&              geomBindPath,
+    const std::set<int>&        materialIdsSet,
+    std::vector<std::set<int>>& matIDsSets)
+{
+    const auto findIt = std::find(matIDsSets.begin(), matIDsSets.end(), materialIdsSet);
+    if (findIt != matIDsSets.end()) {
+        // The bundle for this matID set already exist, just add the binding path to it.
+        variantBundles[findIt - matIDsSets.begin()].geomBindPaths.push_back(geomBindPath);
+        return;
+    }
+    matIDsSets.push_back(materialIdsSet);
+    VariantBundle bundle;
+    bundle.geomBindPaths.push_back(geomBindPath);
+    bundle.matSetIdx = materialIdsSet;
+    variantBundles.emplace_back(bundle);
+}
+
+void MtlSwitcherWriter::BindPlaceholderMatsToGeom()
+{
+    // Bind the geomSubSet to the placeholder materials.
+    for (const auto& variantBundle : variantBundles) {
+        for (const auto& path : variantBundle.geomBindPaths) {
+            auto geomPrim = GetUsdStage()->GetPrimAtPath(path);
+
+            int boundMatCount = 0;
+            for (auto child : geomPrim.GetAllChildren()) {
+                if (child.IsA<UsdGeomSubset>()) {
+                    auto bindingAPI = UsdShadeMaterialBindingAPI::Apply(child);
+                    bindingAPI.Bind(variantBundle.subObjsMatPrims[boundMatCount]);
+                    boundMatCount++;
+                }
+            }
+            UsdShadeMaterialBindingAPI shadeAPI(geomPrim);
+            // If we bound some GeomSubSet, we unbind the material switcher from the parent prim.
+            if (boundMatCount != 0) {
+                shadeAPI.UnbindAllBindings();
+            }
+            // Otherwise, it means it's a single ID case, so bind it to the placeholder material.
+            else {
+                shadeAPI.Bind(variantBundle.subObjsMatPrims[0]);
+            }
+        }
+    }
+}
+
+void MtlSwitcherWriter::GetMatIDsFromMultiMat(Mtl* mat, std::set<int>& matIdSet)
+{
+    if (mat->IsMultiMtl()) {
+        // get material ids
+        IParamBlock2* mtlParamBlock2 = mat->GetParamBlockByID(0);
+        short         paramId = MaxUsd::FindParamId(mtlParamBlock2, L"materialIDList");
+        Interval      valid = FOREVER;
+        for (int subIdx = 0; subIdx < mat->NumSubs(); subIdx++) {
+            int matId;
+            mtlParamBlock2->GetValue(paramId, 0, matId, valid, subIdx);
+            matIdSet.insert(matId);
+        }
+    }
+}
+
+void MtlSwitcherWriter::BindVariantBundleToMat(
+    const VariantBundle& variantBundle,
+    Mtl*                 variant,
+    std::set<int>&       matIdSet,
+    const UsdVariantSet* variantSet)
+{
+    int subGeo = 0;
+    for (int matID : variantBundle.matSetIdx) {
+        Mtl* subMat = variant;
+        if (variant->ClassID() == MULTI_MATERIAL_CLASS_ID) {
+            const auto matIdIter = matIdSet.find(matID % variant->NumSubMtls());
+            subMat = variant->GetSubMtl(*matIdIter);
+        }
+
+        const auto matIter = writeJobCtx.GetMaterialsToPrimsMap().find(subMat);
+        if (matIter == writeJobCtx.GetMaterialsToPrimsMap().end()) {
+            if (subMat != nullptr) {
+                MaxUsd::Log::Warn(
+                    "Material \"{0}\" from Material Switcher \"{1}\" cannot be referenced as it "
+                    "was "
+                    "not properly exported.",
+                    MaxUsd::MaxStringToUsdString(variant->GetName()),
+                    MaxUsd::MaxStringToUsdString(GetMaterial()->GetName()));
+            }
+            subGeo++;
+            continue;
+        }
+        auto refs = variantBundle.subObjsMatPrims[subGeo].GetPrim().GetReferences();
+        if (variantSet != nullptr && variantSet->IsValid()) {
+            UsdEditContext context(variantSet->GetVariantEditContext());
+            refs.AddInternalReference(matIter->second);
+        } else {
+            refs.AddInternalReference(matIter->second);
+        }
+        subGeo++;
+    }
+}
+
+void MtlSwitcherWriter::PostWrite()
+{
+    if (variantMaterials.empty()) {
+        // no material binding required
+        // the material switcher is empty
+        return;
+    }
+
+    UsdPrim usdMaterial = GetUsdStage()->GetPrimAtPath(GetUsdPath().GetParentPath());
+    auto    references = usdMaterial.GetReferences();
+
+    if (exportStyle == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::AsVariantSets) {
+        MaxSDK::MtlSwitcherInterface* msi = static_cast<MaxSDK::MtlSwitcherInterface*>(
+            GetMaterial()->GetInterface(MTL_SWITCHER_ACCESS_INTERFACE));
+        Mtl*        activeMtl = msi->GetActiveMtl();
+        std::string activeMtlName;
+
+        UsdVariantSet variantSet = usdMaterial.GetVariantSets().GetVariantSet("shadingVariant");
+        if (!hasMultiSubDependency) {
+            for (const auto variant : variantMaterials) {
+                const auto matIter = writeJobCtx.GetMaterialsToPrimsMap().find(variant);
+                if (matIter == writeJobCtx.GetMaterialsToPrimsMap().end()) {
+                    MaxUsd::Log::Warn(
+                        "Material \"{0}\" from Material Switcher \"{1}\" cannot be referenced as "
+                        "it was "
+                        "not properly exported.",
+                        MaxUsd::MaxStringToUsdString(variant->GetName()),
+                        MaxUsd::MaxStringToUsdString(GetMaterial()->GetName()));
+                    continue;
+                }
+
+                auto variantName
+                    = TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(variant->GetName()));
+                if (variant == activeMtl) {
+                    // save the active material variant for later reference
+                    activeMtlName = variantName;
+                }
+                variantSet.AddVariant(variantName);
+                variantSet.SetVariantSelection(variantName);
+                {
+                    UsdEditContext context(variantSet.GetVariantEditContext());
+                    references.AddInternalReference(matIter->second);
+                }
+            }
+        } else {
+            BindPlaceholderMatsToGeom();
+
+            for (const auto variant : variantMaterials) {
+                auto variantName
+                    = TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(variant->GetName()));
+                if (variant == activeMtl) {
+                    // save the active material variant for later reference
+                    activeMtlName = variantName;
+                }
+                variantSet.AddVariant(variantName);
+                variantSet.SetVariantSelection(variantName);
+
+                // Will be used to match the material id with the geom material ID, if the material
+                // is a Multi sub material
+                std::set<int> matIdSet;
+                GetMatIDsFromMultiMat(variant, matIdSet);
+
+                for (auto& variantBundle : variantBundles) {
+                    BindVariantBundleToMat(variantBundle, variant, matIdSet, &variantSet);
+                }
+            }
+        }
+        // set the default selected variant to be the active material from the material switcher
+        variantSet.SetVariantSelection(activeMtlName);
+    } else if (
+        exportStyle == MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle::ActiveMaterialOnly) {
+        MaxSDK::MtlSwitcherInterface* msi = static_cast<MaxSDK::MtlSwitcherInterface*>(
+            GetMaterial()->GetInterface(MTL_SWITCHER_ACCESS_INTERFACE));
+        Mtl* activeMtl = msi->GetActiveMtl();
+        if (hasMultiSubDependency) {
+            BindPlaceholderMatsToGeom();
+            // Will be used to match the material id with the geom material ID, if the material is a
+            // Multi sub material
+            std::set<int> matIdSet;
+            GetMatIDsFromMultiMat(activeMtl, matIdSet);
+            for (auto& variantBundle : variantBundles) {
+                BindVariantBundleToMat(variantBundle, activeMtl, matIdSet);
+            }
+        } else {
+            const auto matIter = writeJobCtx.GetMaterialsToPrimsMap().find(activeMtl);
+            if (matIter == writeJobCtx.GetMaterialsToPrimsMap().end()) {
+                MaxUsd::Log::Warn(
+                    "Active Material \"{0}\" for Material Switcher \"{1}\" cannot be referenced as "
+                    "it was "
+                    "not properly exported.",
+                    MaxUsd::MaxStringToUsdString(activeMtl->GetName()),
+                    MaxUsd::MaxStringToUsdString(GetMaterial()->GetName()));
+                return;
+            }
+            references.ClearReferences();
+            references.AddInternalReference(matIter->second);
+        }
+    }
+}
+#endif
\ No newline at end of file
diff --git a/src/translators/MtlSwitcherWriter.h b/src/translators/MtlSwitcherWriter.h
new file mode 100644
index 0000000..558eef6
--- /dev/null
+++ b/src/translators/MtlSwitcherWriter.h
@@ -0,0 +1,105 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#ifdef IS_MAX2024_OR_GREATER
+#include <MaxUsd/Translators/ShaderWriter.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class UsdShadeMaterial;
+
+class MtlSwitcherWriter : public MaxUsdShaderWriter
+{
+public:
+    /// A bundle contains the MatID set that it represents, the Bindings that it needs to connect
+    /// and the (placeholder) Material Prims that are used to represent it in the stage.
+    struct VariantBundle
+    {
+        std::set<int>                 matSetIdx;
+        std::list<SdfPath>            geomBindPaths;
+        std::vector<UsdShadeMaterial> subObjsMatPrims;
+    };
+
+    MtlSwitcherWriter(Mtl* material, const SdfPath& usdPath, MaxUsdWriteJobContext& jobCtx);
+
+    /// A static function declaring how well this class can support the current context.
+    static ContextSupport CanExport(const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    /// The switcher is material target agnostic, it does not define any shader of its own.
+    static bool IsMaterialTargetAgnostic();
+
+    /// \brief Main export function that runs when the applicable material gets hit.
+    void Write() override;
+
+    /// \brief Reports whether the ShaderWriter needs all those dependent materials to
+    /// be also exported.
+    bool HasMaterialDependencies() const override { return true; };
+
+    /// \brief Retrieve the dependent materials
+    /// \param subMtl The array to report the list of dependent materials
+    void GetSubMtlDependencies(std::vector<Mtl*>& subMtl) const override;
+
+    /// \brief Method called after all materials are exported
+    void PostWrite() override;
+
+private:
+    /// \brief Retrieve the materials attached to this switcher
+    /// \param subMtl The array to report the list of dependent materials
+    void GetTopLevelMtlDependencies(std::vector<Mtl*>& subMtl) const;
+
+    /// \brief Bind the variant bundles placeholder materials to the geometry
+    void BindPlaceholderMatsToGeom();
+
+    /// \brief Get the material IDs from a Multi/Sub-Object material
+    /// \param mat The Multi/Sub-Object material
+    /// \param matIdSet The set to report the material IDs
+    void GetMatIDsFromMultiMat(Mtl* mat, std::set<int>& matIdSet);
+
+    /// \brief Adds the references between the placeholder materials and the actual materials
+    /// \param variantBundle The variant bundle to connect
+    /// \param variant The variant material
+    /// \param matIdSet The material IDs of the Multi/Sub-Object material
+    /// \param variantSet The variant set being editing
+    void BindVariantBundleToMat(
+        const VariantBundle& variantBundle,
+        Mtl*                 variant,
+        std::set<int>&       matIdSet,
+        const UsdVariantSet* variantSet = nullptr);
+
+    /// \brief Create a new variant bundle and adds it to the member vector, if a bundle with the
+    /// same material IDs set was already created,
+    ///  just adds the geomBindPath to the bundle
+    /// \param geomBindPath The path to the prim this bundle will be bound to
+    /// \param materialIdsSet The set containing the material IDs of the geometry prim
+    /// \param matIDsSets The vector of material IDs sets used to keep track of what's already been
+    /// found.
+    void CreateVariantBundle(
+        const SdfPath&              geomBindPath,
+        const std::set<int>&        materialIdsSet,
+        std::vector<std::set<int>>& matIDsSets);
+
+    // cached list of material variants (sub mtl of the Material Switcher)
+    std::vector<Mtl*>                                      variantMaterials;
+    MaxUsd::USDSceneBuilderOptions::MtlSwitcherExportStyle exportStyle;
+    bool                                                   hasMultiSubDependency = false;
+    std::vector<VariantBundle>                             variantBundles;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
+#endif
\ No newline at end of file
diff --git a/src/translators/NurbsCurvesReader.cpp b/src/translators/NurbsCurvesReader.cpp
new file mode 100644
index 0000000..2bc7cb3
--- /dev/null
+++ b/src/translators/NurbsCurvesReader.cpp
@@ -0,0 +1,220 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorMorpher.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorSkel.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Translators/TranslatorXformable.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdGeom/nurbsCurves.h>
+
+#include <surf_api.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+enum NURBSCurvesReaderCodes
+{
+    CurveVertexCountToPointsMismatch,
+    CurveVertexCountsSizeToCurveOrderSizeMismatch,
+    InsufficientKnotsDefined
+};
+
+TF_REGISTRY_FUNCTION(TfEnum)
+{
+    TF_ADD_ENUM_NAME(
+        CurveVertexCountToPointsMismatch,
+        "Total curve vertex count is not equal to number of points defined for BasisCurve.");
+    TF_ADD_ENUM_NAME(
+        CurveVertexCountsSizeToCurveOrderSizeMismatch,
+        "Number of curves is not equal to number of curve orders.");
+    TF_ADD_ENUM_NAME(
+        InsufficientKnotsDefined,
+        "Insufficient knots defined in the knots list. There must either 0 knots defined or "
+        "exactly "
+        "SumOfAllCurves(curveVertexCounts[i]+orders[i]) number of knots.");
+};
+
+class MaxUsdNurbsCurvesReader : public MaxUsdPrimReader
+{
+public:
+    MaxUsdNurbsCurvesReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdNurbsCurvesReader() = default;
+
+    bool Read() override;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdGeomNurbsCurves)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdGeomNurbsCurves>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdNurbsCurvesReader>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdNurbsCurvesReader::Read()
+{
+    const auto               prim = GetUsdPrim();
+    const UsdGeomNurbsCurves nurbsCurvesPrim(prim);
+
+    const auto timeConfig = GetArgs().GetResolvedTimeConfig(prim.GetStage());
+    const auto startTimeCode = timeConfig.GetStartTimeCode();
+
+    VtArray<int>    curveOrders;
+    VtArray<double> curveKnots;
+    nurbsCurvesPrim.GetOrderAttr().Get(&curveOrders, startTimeCode);
+    nurbsCurvesPrim.GetKnotsAttr().Get(&curveKnots, startTimeCode);
+    VtArray<int> curveVertexCts;
+    nurbsCurvesPrim.GetCurveVertexCountsAttr().Get(&curveVertexCts, startTimeCode);
+    VtArray<GfVec3f> points;
+    nurbsCurvesPrim.GetPointsAttr().Get(&points, startTimeCode);
+
+    size_t vertCount = 0;
+    // Validate the curve count sizes and accumulate vertCount
+    for (const int& count : curveVertexCts) {
+        vertCount += count;
+    }
+
+    // Check if there are a matching number of curves and orders defined (i.e need an order for each
+    // curve)
+    if (curveVertexCts.size() != curveOrders.size()) {
+        TF_ERROR(
+            CurveVertexCountsSizeToCurveOrderSizeMismatch,
+            "Number of elements in curveVertexCounts '%s' not equal to amount of elements in "
+            "orders '%s'.",
+            std::to_string(curveVertexCts.size()),
+            std::to_string(curveOrders.size()));
+        return false;
+    }
+
+    size_t   numKnotsRequired = 0;
+    unsigned cidx = 0;
+    for (const int& count : curveVertexCts) {
+        numKnotsRequired += count + curveOrders[cidx];
+        cidx++;
+    }
+
+    // If a knots attribute is defined, check to make sure that it has the correct number of knots
+    // defined based on the curve sizes and the curve order
+    if (curveKnots.size() > 0 && curveKnots.size() != numKnotsRequired) {
+        TF_ERROR(
+            InsufficientKnotsDefined,
+            "There are '%s' knots defined but there should be '%s' knots defined (i.e for each "
+            "curve defined, there needs to be 'numPoints + order' knots).",
+            std::to_string(curveKnots.size()),
+            std::to_string(numKnotsRequired));
+        return false;
+    }
+
+    // Check if vertCount is equal to the number of points
+    if (vertCount != points.size()) {
+        TF_ERROR(
+            CurveVertexCountToPointsMismatch,
+            "Total curveVertex count '%s' not equal to amount of points defined '%s'.",
+            std::to_string(vertCount),
+            std::to_string(points.size()));
+        return false;
+    }
+
+    NURBSSet nurbsSet;
+    int      cvidx = 0;
+    int      ckidx = 0;
+    for (int idx = 0; idx < curveVertexCts.size(); idx++) {
+        NURBSCVCurve* nurbsCurve = new NURBSCVCurve();
+        nurbsCurve->SetNumCVs(curveVertexCts[idx]);
+        if (idx < curveOrders.size()) {
+            nurbsCurve->SetOrder(curveOrders[idx]);
+        }
+
+        int numKnots = (curveVertexCts[idx] + curveOrders[idx]);
+        nurbsCurve->SetNumKnots(numKnots);
+        if (curveKnots.size() >= ckidx + numKnots) {
+            for (int i = ckidx; ckidx < i + numKnots; ckidx++) {
+                nurbsCurve->SetKnot(ckidx - i, curveKnots[ckidx]);
+            }
+        } else {
+            // Generate uniform knot vector if none is provided.
+            // The vector will be normalized to the range [0, 1]. The first and last knots will be
+            // repeated based on the curve order. Example: for a curve with 8 CVs and order 4, the
+            // knot vector will be [0, 0, 0, 0.1428, 0.2857, 0.4285, 0.5714, 0.7142, 0.8571, 1, 1,
+            // 1]
+            double repeatedVal;
+            int    beginUniform = 0;
+            int    endUniform = numKnots;
+
+            int numRepeated = nurbsCurve->GetOrder() - 2;
+            if (numRepeated < 0) {
+                MaxUsd::Log::Warn(
+                    "The curve order is smaller than 2. Setting number of repeated knots to 0.");
+                numRepeated = 0;
+            }
+            beginUniform += numRepeated;
+            endUniform -= numRepeated;
+
+            // Generate uniform portion of range
+            int   numUniform = endUniform - beginUniform;
+            float invRange = 1.0f;
+            if (numUniform > 1) {
+                invRange = 1.0f / ((float)(numUniform - 1));
+            }
+
+            for (int knotIndex = beginUniform; knotIndex < endUniform; ++knotIndex) {
+                float knotVal = invRange * ((float)(knotIndex - beginUniform));
+                nurbsCurve->SetKnot(knotIndex, knotVal);
+            }
+
+            // Fill out repeated knots
+            repeatedVal = nurbsCurve->GetKnot(beginUniform);
+            for (int knotIndex = 0; knotIndex < beginUniform; ++knotIndex) {
+                nurbsCurve->SetKnot(knotIndex, repeatedVal);
+            }
+
+            repeatedVal = nurbsCurve->GetKnot(endUniform - 1);
+            for (int knotIndex = endUniform; knotIndex < numKnots; ++knotIndex) {
+                nurbsCurve->SetKnot(knotIndex, repeatedVal);
+            }
+        }
+
+        NURBSControlVertex cv;
+        for (int i = cvidx; cvidx < i + curveVertexCts[idx]; cvidx++) {
+            cv.SetPosition(cvidx, Point3(points[cvidx][0], points[cvidx][1], points[cvidx][2]));
+            nurbsCurve->SetCV(cvidx - i, cv);
+        }
+
+        // Add the NURBSCVCurve object to the set
+        nurbsSet.AppendObject(nurbsCurve);
+    }
+
+    // Create the NURBS object from the NURBSSet
+    Matrix3 mat;
+    Object* obj = CreateNURBSObject((IObjParam*)GetCOREInterface(), &nurbsSet, mat);
+
+    auto createdNode
+        = MaxUsdTranslatorPrim::CreateAndRegisterNode(prim, obj, prim.GetName(), GetJobContext());
+
+    // position the node
+    MaxUsdTranslatorXformable::Read(prim, createdNode, GetJobContext());
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/PhotometricLightWriter.cpp b/src/translators/PhotometricLightWriter.cpp
new file mode 100644
index 0000000..e650d98
--- /dev/null
+++ b/src/translators/PhotometricLightWriter.cpp
@@ -0,0 +1,448 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "PhotometricLightWriter.h"
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/usd/timeCode.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdLux/boundableLightBase.h>
+#include <pxr/usd/usdLux/cylinderLight.h>
+#include <pxr/usd/usdLux/diskLight.h>
+#include <pxr/usd/usdLux/rectLight.h>
+#include <pxr/usd/usdLux/shadowAPI.h>
+#include <pxr/usd/usdLux/shapingAPI.h>
+#include <pxr/usd/usdLux/sphereLight.h>
+
+#include <linshape.h>
+#include <lslights.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdPhotometricLightWriter::MaxUsdPhotometricLightWriter(
+    const MaxUsdWriteJobContext& jobCtx,
+    INode*                       node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport MaxUsdPhotometricLightWriter::CanExport(
+    INode*                                node,
+    const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateLights()) {
+        return ContextSupport::Unsupported;
+    }
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    return object->IsSubClassOf(LIGHTSCAPE_LIGHT_CLASS) ? ContextSupport::Fallback
+                                                        : ContextSupport::Unsupported;
+}
+
+MaxUsd::XformSplitRequirement MaxUsdPhotometricLightWriter::RequiresXformPrim()
+{
+    const auto object
+        = GetNode()->EvalWorldState(GetExportArgs().GetResolvedTimeConfig().GetStartTime()).obj;
+    const Class_ID    photometricLightType = object->ClassID();
+    LightscapeLight2* maxPhotometricLight
+        = dynamic_cast<LightscapeLight2*>(object->ConvertToType(0, photometricLightType));
+
+    // Special case with cylinder lights and, line and plane lights using a uniform
+    // spherical light distribution as those get converted to UsdLuxCylinder type.
+    // In USD, the expected orientation is on the x-axis, but 3ds Max has it set on the y-axis
+    if (maxPhotometricLight
+        && ((photometricLightType == LS_CYLINDER_LIGHT_ID
+             || photometricLightType == LS_CYLINDER_LIGHT_TARGET_ID)
+            || (photometricLightType == LS_LINEAR_LIGHT_ID
+                || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID
+                || photometricLightType == LS_AREA_LIGHT_ID
+                || photometricLightType == LS_AREA_LIGHT_TARGET_ID)
+                && maxPhotometricLight->GetDistribution() == LightscapeLight::ISOTROPIC_DIST)) {
+        return MaxUsd::XformSplitRequirement::Always;
+    }
+
+    return MaxUsd::XformSplitRequirement::ForOffsetObjects;
+}
+
+TfToken MaxUsdPhotometricLightWriter::GetPrimType()
+{
+    const auto        startTime = GetExportArgs().GetResolvedTimeConfig().GetStartTime();
+    const auto        object = GetNode()->EvalWorldState(startTime).obj;
+    Class_ID          photometricLightType = object->ClassID();
+    LightscapeLight2* maxPhotometricLight
+        = dynamic_cast<LightscapeLight2*>(object->ConvertToType(startTime, photometricLightType));
+
+    // All Photometric light types have a 'Target' sibling light type
+    // It simply acts as a 'lookat' and has no influence on the light by itself
+
+    // Photometric Point and Disk lights using anything but the spherical light (isotropic)
+    // distribution type gets translated into a UsdLuxDiskLight.
+    if ((photometricLightType == LS_POINT_LIGHT_ID
+         || photometricLightType == LS_POINT_LIGHT_TARGET_ID
+         || photometricLightType == LS_DISC_LIGHT_ID
+         || photometricLightType == LS_DISC_LIGHT_TARGET_ID)
+        && maxPhotometricLight->GetDistribution() != LightscapeLight::ISOTROPIC_DIST) {
+        return pxr::MaxUsdPrimTypeTokens->DiskLight;
+    }
+    // Photometric Line and Area (Rectangle) lights using anything but the spherical light
+    // (isotropic) distribution type gets translated into a UsdLuxRectangleLight.
+    if ((photometricLightType == LS_LINEAR_LIGHT_ID
+         || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID
+         || photometricLightType == LS_AREA_LIGHT_ID
+         || photometricLightType == LS_AREA_LIGHT_TARGET_ID)
+        && maxPhotometricLight->GetDistribution() != LightscapeLight::ISOTROPIC_DIST) {
+        return pxr::MaxUsdPrimTypeTokens->RectLight;
+    }
+    // Photometric Sphere light gets translated into a UsdLuxSphereLight
+    // Photometric Point and Disk lights using a spherical light distribution type (isotropic)
+    // gets translated into a UsdLuxSphereLight.
+    if (photometricLightType == LS_SPHERE_LIGHT_ID
+        || photometricLightType == LS_SPHERE_LIGHT_TARGET_ID
+        || ((photometricLightType == LS_POINT_LIGHT_ID
+             || photometricLightType == LS_POINT_LIGHT_TARGET_ID
+             || photometricLightType == LS_DISC_LIGHT_ID
+             || photometricLightType == LS_DISC_LIGHT_TARGET_ID)
+            && maxPhotometricLight->GetDistribution() == LightscapeLight::ISOTROPIC_DIST)) {
+        return pxr::MaxUsdPrimTypeTokens->SphereLight;
+    }
+    // Photometric Cylinder light gets translated into a UsdLuxCylinderLight
+    // Photometric Line and Area (Rectangle) lights using a spherical light distribution type
+    // (isotropic) gets translated into a UsdLuxCylinderLight.
+    if (photometricLightType == LS_CYLINDER_LIGHT_ID
+        || photometricLightType == LS_CYLINDER_LIGHT_TARGET_ID
+        || ((photometricLightType == LS_LINEAR_LIGHT_ID
+             || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID
+             || photometricLightType == LS_AREA_LIGHT_ID
+             || photometricLightType == LS_AREA_LIGHT_TARGET_ID)
+            && maxPhotometricLight->GetDistribution() == LightscapeLight::ISOTROPIC_DIST)) {
+
+        return pxr::MaxUsdPrimTypeTokens->CylinderLight;
+    }
+    // Should not happpen. Fallback to sphere light.
+    return pxr::MaxUsdPrimTypeTokens->SphereLight;
+}
+
+bool MaxUsdPhotometricLightWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    auto     object = sourceNode->EvalWorldState(time.GetMaxTime()).obj;
+    Class_ID photometricLightType = object->ClassID();
+
+    LightscapeLight2* maxPhotometricLight = dynamic_cast<LightscapeLight2*>(
+        object->ConvertToType(time.GetMaxTime(), photometricLightType));
+
+    if (maxPhotometricLight == nullptr) {
+        return false;
+    }
+
+    auto stage = targetPrim.GetStage();
+    auto primPath = targetPrim.GetPath();
+    auto targetType = GetPrimType();
+
+    // Write time-independent properties on the first frame only.
+    pxr::UsdLuxBoundableLightBase usdLightPrim;
+    if (time.IsFirstFrame()) {
+        bool applyConversionRotationOffset { false };
+
+        if (targetType == pxr::MaxUsdPrimTypeTokens->DiskLight) {
+            pxr::UsdLuxDiskLight discLight = pxr::UsdLuxDiskLight::Define(stage, primPath);
+            if (photometricLightType == LS_POINT_LIGHT_ID
+                || photometricLightType == LS_POINT_LIGHT_TARGET_ID) {
+                // a minimal disk radius needs to be specified in order to emit light
+                // value is the same as translated from Arnold MAXtoA
+                discLight.CreateRadiusAttr().Set(0.001f, pxr::UsdTimeCode::Default());
+            }
+            usdLightPrim = discLight;
+        } else if (targetType == pxr::MaxUsdPrimTypeTokens->RectLight) {
+            pxr::UsdLuxRectLight rectangleLight = pxr::UsdLuxRectLight::Define(stage, primPath);
+            if (photometricLightType == LS_LINEAR_LIGHT_ID
+                || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID) {
+                // a diffuse line light is rendered as a directional line light (a narrow plane)
+                // the narrow plane is set to be a '0.1' unit width, fixed in time
+                // value is the same as translated from Arnold MAXtoA
+                rectangleLight.CreateWidthAttr().Set(0.1f, pxr::UsdTimeCode::Default());
+            }
+            usdLightPrim = rectangleLight;
+        } else if (targetType == pxr::MaxUsdPrimTypeTokens->SphereLight) {
+            pxr::UsdLuxSphereLight sphereLight = pxr::UsdLuxSphereLight::Define(stage, primPath);
+
+            bool treatAsPointLight = photometricLightType == LS_POINT_LIGHT_ID
+                || photometricLightType == LS_POINT_LIGHT_TARGET_ID;
+            if (treatAsPointLight) {
+                // TODO: figure out which renderer supports the 'treatAsPoint' attribute
+                // For now, set the radius to 0.001 in order to minimally emit light
+                // value is the same as translated from Arnold MAXtoA
+                sphereLight.CreateRadiusAttr().Set(
+                    0.001f, pxr::UsdTimeCode::Default()); // fixed in time
+                sphereLight.CreateTreatAsPointAttr().Set(
+                    treatAsPointLight, pxr::UsdTimeCode::Default());
+            }
+            usdLightPrim = sphereLight;
+        } else if (targetType == pxr::MaxUsdPrimTypeTokens->CylinderLight) {
+            pxr::UsdLuxCylinderLight cylinderLight
+                = pxr::UsdLuxCylinderLight::Define(stage, primPath);
+
+            // need to rotate the light on its z-axis 90 degrees for USD
+            applyConversionRotationOffset = true;
+
+            bool treatAsLineLight
+                = (photometricLightType == LS_LINEAR_LIGHT_ID
+                   || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID);
+            if (treatAsLineLight) {
+                // TODO: figure out which renderer supports the 'treatAsLine' attribute
+                // For now, set the radius to 0.001 in order to minimally emit light
+                // value is the same as translated from Arnold MAXtoA
+                cylinderLight.CreateRadiusAttr().Set(
+                    0.001f, pxr::UsdTimeCode::Default()); // fixed in time
+                cylinderLight.CreateTreatAsLineAttr().Set(
+                    treatAsLineLight, pxr::UsdTimeCode::Default());
+            }
+            usdLightPrim = cylinderLight;
+        }
+
+        if (applyConversionRotationOffset) {
+            pxr::UsdGeomXformable xformable(usdLightPrim.GetPrim());
+            // Any linear, cylindrical or plane light types are converted to UsdLuxCylinder type.
+            // In USD, the expected orientation is on the x-axis, but 3ds Max has it set on the
+            // y-axis need to rotate the light on its z-axis 90 degrees for USD
+            pxr::UsdGeomXformOp rotationAdjustment = xformable.AddXformOp(
+                pxr::UsdGeomXformOp::TypeRotateZ,
+                pxr::UsdGeomXformOp::PrecisionDouble,
+                pxr::TfToken());
+            rotationAdjustment.Set(90.0, pxr::UsdTimeCode::Default());
+        }
+
+        // Light color
+        // Enable color temperature (Kelvin) if specified
+        bool enableColorTemperature = maxPhotometricLight->GetUseKelvin();
+        usdLightPrim.CreateEnableColorTemperatureAttr().Set(
+            enableColorTemperature, pxr::UsdTimeCode::Default());
+
+        if (!maxPhotometricLight->GetAffectSpecular()) {
+            // turn off the effect of this light on the specular response of materials
+            usdLightPrim.CreateSpecularAttr().Set(0.0f, pxr::UsdTimeCode::Default());
+        } else {
+            // TODO: how to compute the specular effect multiplier
+            // leave the default value to 1.0f for now
+            // usdLightPrim.CreateSpecularAttr().Set(0.0f, pxr::UsdTimeCode::Default());
+        }
+        if (!maxPhotometricLight->GetAffectDiffuse()) {
+            // turn off the effect of this light on the diffuse response of materials
+            usdLightPrim.CreateDiffuseAttr().Set(0.0f, pxr::UsdTimeCode::Default());
+        } else {
+            // TODO: how to compute the diffuse effect multiplier
+            // leave the default value to 1.0f for now
+            // usdLightPrim.CreateSpecularAttr().Set(0.0f, pxr::UsdTimeCode::Default());
+        }
+
+        // Enable shadow casting
+        pxr::UsdLuxShadowAPI usdLightShadowProperties(usdLightPrim);
+        bool                 shadowEnable = maxPhotometricLight->GetShadow();
+        usdLightShadowProperties.CreateShadowEnableAttr().Set(
+            shadowEnable, pxr::UsdTimeCode::Default());
+
+        // Normalize light intensity
+        // This makes it easier to independently adjust the power and shape of the light,
+        // by causing the power to not vary with the area or angular size of the light.
+        usdLightPrim.CreateNormalizeAttr().Set(true, pxr::UsdTimeCode::Default());
+
+        // IES distribution is not animatable
+        if (maxPhotometricLight->GetDistribution() == LightscapeLight::WEB_DIST) {
+            // IES Light Profile file:
+            // TODO: Consider exporting the IES File along with the data. For now, this references
+            // the IES file as a reference to the original file referenced by the 3ds Max file.
+            // TODO: IES files do not get imported with RenderMan render delegate (Prman)
+            using namespace MaxSDK::AssetManagement;
+            AssetUser asset = maxPhotometricLight->GetWebFile();
+            if (asset.GetId() != kInvalidId) {
+                pxr::UsdLuxShapingAPI usdLightShape(usdLightPrim);
+                pxr::SdfAssetPath     assetFullPath(asset.GetFullFilePath().ToUTF8().data());
+                usdLightShape.CreateShapingIesFileAttr().Set(
+                    assetFullPath, pxr::UsdTimeCode::Default());
+            }
+        }
+    }
+
+    // Write animatable properties at the requested time.
+
+    // If not on the first frame, we haven't fetched the light yet, do it now.
+    if (!usdLightPrim) {
+        usdLightPrim = pxr::UsdLuxBoundableLightBase::Get(stage, primPath);
+    }
+
+    const auto timeVal = time.GetMaxTime();
+    const auto usdTimeCode = time.GetUsdTime();
+
+    // same conditional block statements as above in the light declarations unless specifically
+    // noted
+    if ((photometricLightType == LS_DISC_LIGHT_ID
+         || photometricLightType == LS_DISC_LIGHT_TARGET_ID)
+        && maxPhotometricLight->GetDistribution() != LightscapeLight::ISOTROPIC_DIST) {
+        // note: since point lights have a fixed radius, there is no need
+        // to have those light types treated inside this conditional block
+
+        pxr::UsdLuxDiskLight discLight = (pxr::UsdLuxDiskLight)usdLightPrim;
+        float                radius = maxPhotometricLight->GetRadius(timeVal);
+        discLight.CreateRadiusAttr().Set(radius, usdTimeCode);
+    } else if (
+        (photometricLightType == LS_LINEAR_LIGHT_ID
+         || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID
+         || photometricLightType == LS_AREA_LIGHT_ID
+         || photometricLightType == LS_AREA_LIGHT_TARGET_ID)
+        && maxPhotometricLight->GetDistribution() != LightscapeLight::ISOTROPIC_DIST) {
+        pxr::UsdLuxRectLight rectangleLight = (pxr::UsdLuxRectLight)usdLightPrim;
+
+        if (photometricLightType == LS_AREA_LIGHT_ID
+            || photometricLightType == LS_AREA_LIGHT_TARGET_ID) {
+            // applies only to area (rectangle) lights as the line lights have fixed width
+            float width = maxPhotometricLight->GetWidth(timeVal);
+            rectangleLight.CreateWidthAttr().Set(width, usdTimeCode);
+        }
+        float height = maxPhotometricLight->GetLength(timeVal);
+        rectangleLight.CreateHeightAttr().Set(height, usdTimeCode);
+    } else if (
+        photometricLightType == LS_SPHERE_LIGHT_ID
+        || photometricLightType == LS_SPHERE_LIGHT_TARGET_ID
+        || ((photometricLightType == LS_DISC_LIGHT_ID
+             || photometricLightType == LS_DISC_LIGHT_TARGET_ID)
+            && maxPhotometricLight->GetDistribution() == LightscapeLight::ISOTROPIC_DIST)) {
+        // note: since point lights have a fixed radius, there is no need
+        // to have those light types treated inside this conditional block
+
+        pxr::UsdLuxSphereLight sphereLight = (pxr::UsdLuxSphereLight)usdLightPrim;
+        float                  radius = maxPhotometricLight->GetRadius(timeVal);
+        sphereLight.CreateRadiusAttr().Set(radius, usdTimeCode);
+    } else if (
+        photometricLightType == LS_CYLINDER_LIGHT_ID
+        || photometricLightType == LS_CYLINDER_LIGHT_TARGET_ID
+        || ((photometricLightType == LS_LINEAR_LIGHT_ID
+             || photometricLightType == LS_LINEAR_LIGHT_TARGET_ID
+             || photometricLightType == LS_AREA_LIGHT_ID
+             || photometricLightType == LS_AREA_LIGHT_TARGET_ID)
+            && maxPhotometricLight->GetDistribution() == LightscapeLight::ISOTROPIC_DIST)) {
+        pxr::UsdLuxCylinderLight cylinderLight = (pxr::UsdLuxCylinderLight)usdLightPrim;
+        float                    length = maxPhotometricLight->GetLength(timeVal);
+        cylinderLight.CreateLengthAttr().Set(length, usdTimeCode);
+
+        if (photometricLightType == LS_AREA_LIGHT_ID
+            || photometricLightType == LS_AREA_LIGHT_TARGET_ID) {
+            float radius = maxPhotometricLight->GetWidth(timeVal) / 2.f;
+            cylinderLight.CreateRadiusAttr().Set(radius, usdTimeCode);
+        } else if (
+            photometricLightType == LS_CYLINDER_LIGHT_ID
+            || photometricLightType == LS_CYLINDER_LIGHT_TARGET_ID) {
+            float radius = maxPhotometricLight->GetRadius(timeVal);
+            cylinderLight.CreateRadiusAttr().Set(radius, usdTimeCode);
+        }
+        // else, line lights have fixed width
+    }
+
+    // Light color
+    if (maxPhotometricLight->GetUseKelvin()) {
+        // USD expects Kelvin range values from 1000 to 10000
+        float originalKelvinValue = maxPhotometricLight->GetKelvin(timeVal);
+        float clampedKelvinValue = std::min(std::max(1000.f, originalKelvinValue), 10000.f);
+        usdLightPrim.CreateColorTemperatureAttr().Set(clampedKelvinValue, usdTimeCode);
+        if (originalKelvinValue != clampedKelvinValue) {
+            MaxUsd::Log::Warn(
+                L"Light '{0}' temperature value was clamped to '{1}' from '{2}' to match USD "
+                L"specifications.",
+                sourceNode->GetName(),
+                clampedKelvinValue,
+                originalKelvinValue);
+        }
+
+        // add light filter color
+        Point3       maxFilteLightColor = maxPhotometricLight->GetRGBFilter(timeVal);
+        pxr::GfVec3f usdLightColor { maxFilteLightColor[0],
+                                     maxFilteLightColor[1],
+                                     maxFilteLightColor[2] };
+        usdLightPrim.CreateColorAttr().Set(usdLightColor, usdTimeCode);
+    } else {
+        // When not using color temperature (Kelvin) to specify light color,
+        // light color is then a composition of the specified light and filter color
+        Point3 maxLightColor = maxPhotometricLight->GetRGBColor(timeVal)
+            * maxPhotometricLight->GetRGBFilter(timeVal);
+        pxr::GfVec3f usdLightColor { maxLightColor[0], maxLightColor[1], maxLightColor[2] };
+        usdLightPrim.CreateColorAttr().Set(usdLightColor, usdTimeCode);
+    }
+
+    // Shadow color
+    // note: The shadow color is not exposed in the Photometric light interface (but thru maxscript)
+    pxr::UsdLuxShadowAPI usdLightShadowProperties(usdLightPrim);
+    Point3               maxLightShadowColor = maxPhotometricLight->GetShadColor(timeVal);
+    pxr::GfVec3f         usdLightShadowColor(
+        maxLightShadowColor[0], maxLightShadowColor[1], maxLightShadowColor[2]);
+    usdLightShadowProperties.CreateShadowColorAttr().Set(usdLightShadowColor, usdTimeCode);
+
+    // Light Falloff values
+    // TODO - light filter required - might be a renderer specific thing to expose
+    // if (maxPhotometricLight->GetUseAtten())
+    //{
+    //	usdLightShadowProperties.CreateFalloffLightFilerWhateverAttr().Set(
+    //			maxPhotometricLight->GetAtten(timeVal, ATTEN_START, FOREVER), usdTimeCode);
+    //	usdLightShadowProperties.CreateFalloffLightFilerWhateverAttr().Set(
+    //			maxPhotometricLight->GetAtten(timeVal, ATTEN_END, FOREVER), usdTimeCode);
+    //}
+
+    // Light intensity
+    {
+        // based on the Arnold translator (MAXtoA)
+        //
+        // the effective intensity in candelas
+        float lightIntensity = maxPhotometricLight->GetIntensity(timeVal);
+        if (maxPhotometricLight->GetDistribution() == LightscapeLight::WEB_DIST) {
+            lightIntensity = lightIntensity / maxPhotometricLight->GetOriginalIntensity() * 1000.f;
+        }
+
+        // take care of a dimmed intensity
+        if (maxPhotometricLight->GetUseMultiplier()) {
+            lightIntensity *= maxPhotometricLight->GetDimmerValue(timeVal) * 0.01f;
+        }
+
+        lightIntensity
+            /= 1500; // TODO - need
+                     // GetRenderSessionContext().GetRenderSettings().GetPhysicalScale(translationTime,
+                     // newValidity)
+
+        // ZAP's magic adjustment
+        lightIntensity *= static_cast<float>(M_PI);
+        // scale to system units.
+        lightIntensity /= static_cast<float>(
+            GetSystemUnitScale(UNITS_METERS) * GetSystemUnitScale(UNITS_METERS));
+        usdLightPrim.CreateIntensityAttr().Set(lightIntensity, usdTimeCode);
+    }
+
+    LightscapeLight::DistTypes maxLightDistType = maxPhotometricLight->GetDistribution();
+    if (maxLightDistType == LightscapeLight::SPOTLIGHT_DIST) {
+        // TODO - the falloff of the spot is not directly the angle value from 3ds Max
+        float                 beamAngle = maxPhotometricLight->GetHotspot(timeVal);
+        pxr::UsdLuxShapingAPI usdLightShape(usdLightPrim);
+        usdLightShape.CreateShapingConeAngleAttr().Set(beamAngle, usdTimeCode);
+    }
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/PhotometricLightWriter.h b/src/translators/PhotometricLightWriter.h
new file mode 100644
index 0000000..acc96a2
--- /dev/null
+++ b/src/translators/PhotometricLightWriter.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+#include <pxr/usd/usdLux/boundableLightBase.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdPhotometricLightWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdPhotometricLightWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override;
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Light"); };
+
+    TfToken GetPrimType() override;
+
+    WStr GetWriterName() override { return L"Light writer"; };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/ScopeReader.cpp b/src/translators/ScopeReader.cpp
new file mode 100644
index 0000000..f157a5c
--- /dev/null
+++ b/src/translators/ScopeReader.cpp
@@ -0,0 +1,57 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+
+#include <pxr/pxr.h>
+#include <pxr/usd/usd/prim.h>
+#include <pxr/usd/usdShade/material.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+static bool _IsShadingNode(const UsdPrim& prim)
+{
+    // Note, UsdShadeShader prims are used in other contexts that aren't just
+    // surface shading, so we just look for UsdShadeMaterial nodes.
+    return prim.IsA<UsdShadeMaterial>();
+}
+
+PXR_MAXUSD_DEFINE_READER(UsdGeomScope, usdPrim, args, context)
+{
+    // If this scope contains only "shading" nodes (as in the "Looks" or
+    // "Material" scopes that is often in assets), just skip.
+    bool hasShadingData = false;
+    bool hasNonShadingData = false;
+    auto usdPrimName = usdPrim.GetName().GetString();
+
+    for (const auto& child : usdPrim.GetChildren()) {
+        auto usdPrimChildName = child.GetName().GetString();
+        if (_IsShadingNode(child)) {
+            hasShadingData = true;
+        } else {
+            hasNonShadingData = true;
+            break;
+        }
+    }
+    if (hasShadingData && !hasNonShadingData) {
+        context.SetPruneChildren(true);
+        return false;
+    }
+
+    return MaxUsdTranslatorUtil::CreateDummyHelperNode(usdPrim, usdPrim.GetName(), context);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/ShapeWriter.cpp b/src/translators/ShapeWriter.cpp
new file mode 100644
index 0000000..d5639fc
--- /dev/null
+++ b/src/translators/ShapeWriter.cpp
@@ -0,0 +1,260 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "ShapeWriter.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/base/vt/array.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/usdGeom/basisCurves.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+
+#include <linshape.h>
+#include <simpshp.h>
+#include <simpspl.h>
+#include <splshape.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdShapeWriter::MaxUsdShapeWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdShapeWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateShapes()) {
+        return ContextSupport::Unsupported;
+    }
+
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    if (object->SuperClassID() != SHAPE_CLASS_ID) {
+        return ContextSupport::Unsupported;
+    }
+
+    ShapeObject* shapeObject = dynamic_cast<ShapeObject*>(object);
+
+    // First make sure that we can indeed export this shape.
+    if (!shapeObject) {
+        return ContextSupport::Unsupported;
+    }
+    return ContextSupport::Fallback;
+}
+
+bool MaxUsdShapeWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    ShapeObject* shapeObject
+        = dynamic_cast<ShapeObject*>(sourceNode->EvalWorldState(time.GetMaxTime()).obj);
+
+    // First make sure that we can indeed export this shape.
+    if (!shapeObject) {
+        // Should not happen, SHAPE type objects should at the very least cast to ShapeObjects just
+        // above - might still happen from faulty programming?
+        MSTR className;
+        sourceNode->GetClassName(className);
+        if (time.IsFirstFrame()) {
+            // On the first frame only, log this error, it is time independent.
+            MaxUsd::Log::Error(
+                L"The \"{}\" shape class used by node \"{}\" is not supported and could "
+                L"not be properly exported to a UsdGeomBasisCurves USD prim.",
+                className.data(),
+                sourceNode->GetName());
+        }
+        return false;
+    }
+
+    auto stage = targetPrim.GetStage();
+    auto primPath = targetPrim.GetPath();
+    auto timeConfig = GetExportArgs().GetResolvedTimeConfig();
+
+    // If the shape is displayed as a mesh in the viewport, we need to export it as such also.
+    if (shapeObject->GetDispRenderMesh() == TRUE) {
+        MaxUsd::MeshConverter meshConverter;
+        meshConverter.ConvertToUSDMesh(
+            sourceNode,
+            stage,
+            primPath,
+            GetExportArgs().GetMeshConversionOptions(),
+            applyOffsetTransform,
+            timeConfig.IsAnimated(),
+            time);
+        return true;
+    }
+
+    pxr::UsdGeomBasisCurves usdCurve(targetPrim);
+
+    // Setup some non-animatable attributes (only do it once, when we export the first frame).
+    if (time.IsFirstFrame()) {
+        // Currently exported "linear" type curves, as we export the interpolated splines.
+        usdCurve.CreateTypeAttr().Set(pxr::TfToken("linear"));
+
+        // Use the wire color as USD display color.
+        Color             wireColor(sourceNode->GetWireColor());
+        pxr::VtVec3fArray usdDisplayColor = { pxr::GfVec3f(wireColor.r, wireColor.g, wireColor.b) };
+        usdCurve.CreateDisplayColorAttr().Set(usdDisplayColor);
+    }
+
+    const auto& timeVal = time.GetMaxTime();
+    const auto& usdTimeCode = time.GetUsdTime();
+
+    // Utility lambda to get the PolyShape that we will end up exporting.
+    // We export the interpolation of the shapes, so the exported curve will match what is actually
+    // seen in the Max viewport - all shapes get "baked" to a PolyShape representation. In some
+    // cases, a PolyShape is already the internal representation, while in others, we need to build
+    // it using the interpolation parameters. This lambda returns, for a given object, the PolyShape
+    // that we need to export, and whether that PolyShape needs to be destroyed (meaning it had to
+    // be created for our purpose).
+    auto getPolyShape = [](Object*   object,
+                           WStr      nodeName,
+                           TimeValue timeVal,
+                           bool      displayWarnings) -> std::pair<PolyShape*, bool> {
+        // In the case of bezier shapes, we need to interpolate the curve.
+        BezierShape* bezierShape = nullptr;
+        SplineShape* splineShape = dynamic_cast<SplineShape*>(object);
+        if (splineShape) {
+            bezierShape = &splineShape->shape;
+        } else {
+            SimpleSpline* simpleSpline = dynamic_cast<SimpleSpline*>(object);
+            if (simpleSpline != nullptr) {
+                bezierShape = &simpleSpline->shape;
+            }
+        }
+        if (bezierShape) {
+            auto polyShape = new PolyShape();
+            bezierShape->MakePolyShape(*polyShape, bezierShape->steps, bezierShape->optimize);
+            return { polyShape, true }; // Will need to be deleted by caller.
+        }
+
+        SimpleShape* simpleShape = dynamic_cast<SimpleShape*>(object);
+        if (simpleShape != nullptr) {
+            return { &simpleShape->shape, false };
+        }
+
+        LinearShape* linearShape = dynamic_cast<LinearShape*>(object);
+        if (linearShape != nullptr) {
+            return { &linearShape->shape, false };
+        }
+
+        // Unknown shape type, try and convert it to a LinearShape.
+        const auto linearShapeClassId = Class_ID { LINEARSHAPE_CLASS_ID, 0 };
+        if (object->CanConvertToType(linearShapeClassId)) {
+            LinearShape* linearShape
+                = static_cast<LinearShape*>(object->ConvertToType(timeVal, linearShapeClassId));
+            // We could avoid this copy at the cost of code complexity. As this is mostly fallback
+            // code, I dont think it is worth it at this time.
+            auto polyShape = new PolyShape { linearShape->shape };
+            linearShape->MaybeAutoDelete();
+            return { polyShape, true };
+        }
+
+        MSTR className;
+        object->GetClassName(className);
+
+        // At this point, we already made sure that the object can cast to ShapeObject.
+        ShapeObject* shapeObject = static_cast<ShapeObject*>(object);
+
+        if (displayWarnings) {
+            MaxUsd::Log::Warn(
+                L"The \"{}\" shape class used by node \"{}\" is not fully supported for node, "
+                L"using "
+                L"adaptive interpolation.",
+                className.data(),
+                nodeName.data());
+        }
+        auto polyShape = new PolyShape();
+        shapeObject->MakePolyShape(timeVal, *polyShape, PSHAPE_ADAPTIVE_STEPS, TRUE);
+        return { polyShape, true };
+    };
+
+    const auto curvesVertexCountsAttr = usdCurve.CreateCurveVertexCountsAttr();
+    const auto curvesPointsAttr = usdCurve.CreatePointsAttr();
+
+    // Flag used to make sure we only raise warnings once, and not for every frame.
+    const bool displayTimeDependantWarnings = time.IsFirstFrame();
+
+    // getPolyShape() returns a pair :
+    // first -> the polyShape to export.
+    // second -> whether or not that polyShape should be deleted.
+    const auto polyShapePair
+        = getPolyShape(shapeObject, sourceNode->GetName(), timeVal, displayTimeDependantWarnings);
+
+    PolyShape* polyShape = polyShapePair.first;
+    const bool destroyPolyShape = polyShapePair.second;
+
+    const bool wsmRequiresTransform = MaxUsd::WsmRequiresTransformToLocalSpace(sourceNode, timeVal);
+    // If a WSM is applied, move the geometry's points back into local space. So that with the
+    // transforms inherited from its hierarchy, the object will end up in the correct location on
+    // the USD side.
+    if (wsmRequiresTransform) {
+        auto nodeTmInvert = sourceNode->GetNodeTM(timeVal);
+        nodeTmInvert.Invert();
+        polyShape->Transform(nodeTmInvert);
+    }
+
+    pxr::VtIntArray   vertexCounts;
+    pxr::VtVec3fArray points;
+
+    for (int i = 0; i < polyShape->numLines; ++i) {
+        // Not getting a const reference because in Max 2021, ::IsClosed() is not const correct...
+        auto& line = polyShape->lines[i];
+        // If the curve is closed, repeat the first point at the end.
+        const auto closed = line.IsClosed();
+        int        numPoints = line.numPts;
+        if (closed) {
+            numPoints++;
+        }
+
+        vertexCounts.push_back(numPoints);
+        for (int j = 0; j < line.numPts; ++j) {
+            const auto point = line.pts[j];
+            points.emplace_back(point.p.x, point.p.y, point.p.z);
+        }
+
+        if (closed) {
+            const auto firstPoint = line.pts[0];
+            points.emplace_back(firstPoint.p.x, firstPoint.p.y, firstPoint.p.z);
+        }
+    }
+
+    curvesVertexCountsAttr.Set(vertexCounts, usdTimeCode);
+    curvesPointsAttr.Set(points, usdTimeCode);
+
+    if (destroyPolyShape) {
+        delete polyShape;
+    }
+
+    return true;
+}
+
+MaxUsd::XformSplitRequirement MaxUsdShapeWriter::RequiresXformPrim()
+{
+    if (!GetExportArgs().GetAllowNestedGprims() && GetNode()->NumberOfChildren() > 0) {
+        return MaxUsd::XformSplitRequirement::Always;
+    }
+    return MaxUsd::XformSplitRequirement::ForOffsetObjects;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/ShapeWriter.h b/src/translators/ShapeWriter.h
new file mode 100644
index 0000000..a108c9b
--- /dev/null
+++ b/src/translators/ShapeWriter.h
@@ -0,0 +1,44 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+#include <pxr/pxr.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdShapeWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdShapeWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override;
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->BasisCurves; };
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Shape"); };
+
+    WStr GetWriterName() override { return L"Shape writer"; };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/SkelReader.cpp b/src/translators/SkelReader.cpp
new file mode 100644
index 0000000..02c53db
--- /dev/null
+++ b/src/translators/SkelReader.cpp
@@ -0,0 +1,222 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include <MaxUsd/Translators/PrimReader.h>
+#include <MaxUsd/Translators/PrimReaderRegistry.h>
+#include <MaxUsd/Translators/TranslatorMorpher.h>
+#include <MaxUsd/Translators/TranslatorPrim.h>
+#include <MaxUsd/Translators/TranslatorSkel.h>
+#include <MaxUsd/Translators/TranslatorUtils.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+
+#include <pxr/usd/usdSkel/cache.h>
+#include <pxr/usd/usdSkel/root.h>
+#include <pxr/usd/usdSkel/skeleton.h>
+#include <pxr/usd/usdSkel/skeletonQuery.h>
+
+#include <inode.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdSkeletonReader : public MaxUsdPrimReader
+{
+public:
+    MaxUsdSkeletonReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdSkeletonReader() override { }
+
+    bool Read() override;
+
+private:
+    UsdSkelCache skelCache;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdSkelSkeleton)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdSkelSkeleton>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdSkeletonReader>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdSkeletonReader::Read()
+{
+    const auto            prim = GetUsdPrim();
+    const UsdSkelSkeleton skel(prim);
+
+    if (const UsdSkelSkeletonQuery skeletonQuery = skelCache.GetSkelQuery(skel)) {
+        // Nothing to do if there are no joints (could be just morpher)
+        if (skeletonQuery.GetJointOrder().empty()) {
+            return false;
+        }
+
+        MaxUsdTranslatorUtil::CreateDummyHelperNode(prim, prim.GetName(), GetJobContext());
+        INode* parentNode = GetJobContext().GetMaxNode(prim.GetPath(), false);
+
+        std::vector<INode*> jointsHierarchy;
+        return MaxUsdTranslatorSkel::CreateJointHierarchy(
+            skeletonQuery, parentNode, GetJobContext(), jointsHierarchy);
+    }
+
+    return false;
+}
+
+class MaxUsdSkelRootReader : public MaxUsdPrimReader
+{
+public:
+    MaxUsdSkelRootReader(const UsdPrim& prim, MaxUsdReadJobContext& jobCtx)
+        : MaxUsdPrimReader(prim, jobCtx)
+    {
+    }
+
+    ~MaxUsdSkelRootReader() override { }
+
+    bool Read() override;
+
+    bool HasPostReadSubtree() const override { return true; }
+
+    void PostReadSubtree() override;
+
+private:
+    UsdSkelCache skelCache;
+};
+
+TF_REGISTRY_FUNCTION_WITH_TAG(MaxUsdPrimReaderRegistry, UsdSkelRoot)
+{
+    MaxUsdPrimReaderRegistry::Register<UsdSkelRoot>(
+        [](const UsdPrim& prim, MaxUsdReadJobContext& jobCtx) {
+            return std::make_shared<MaxUsdSkelRootReader>(prim, jobCtx);
+        });
+}
+
+bool MaxUsdSkelRootReader::Read()
+{
+    const auto prim = GetUsdPrim();
+
+    // Using PointHelper since SkelRoot are just transforms
+    return MaxUsdTranslatorUtil::CreateDummyHelperNode(prim, prim.GetName(), GetJobContext());
+}
+
+void MaxUsdSkelRootReader::PostReadSubtree()
+{
+    UsdSkelRoot skelRoot(GetUsdPrim());
+
+    // After creating all skelroot children prims, we need to find skinned prims
+
+    std::vector<UsdSkelBinding> bindings;
+    skelCache.Populate(skelRoot, UsdTraverseInstanceProxies());
+    if (!skelCache.ComputeSkelBindings(skelRoot, &bindings, UsdTraverseInstanceProxies())) {
+        return;
+    }
+
+    for (const UsdSkelBinding& binding : bindings) {
+        if (binding.GetSkinningTargets().empty()) {
+            // no skinned target. go to next binding
+            continue;
+        }
+
+        if (const UsdSkelSkeletonQuery skelQuery = skelCache.GetSkelQuery(binding.GetSkeleton())) {
+            std::vector<INode*> joints;
+            MaxUsdTranslatorSkel::GetJointsNodes(skelQuery, GetJobContext(), joints);
+
+            // skinningQuery are used for joints animation
+            for (const auto& skinningQuery : binding.GetSkinningTargets()) {
+                // fetch the skinned node that should have been created by another importer 'read'
+                const UsdPrim& skinnedPrim = skinningQuery.GetPrim();
+                INode* skinnedNode = GetJobContext().GetMaxNode(skinnedPrim.GetPath(), false);
+                if (!skinnedNode) {
+                    // This shouldn't fail because the 3dsMax node should've been created.
+                    MaxUsd::Log::Error(
+                        "Couldn't find max node for \"{}\".",
+                        skinningQuery.GetPrim().GetPath().GetName());
+                    continue;
+                }
+
+                MaxUsdTranslatorMorpher::ConfigureMorpherAnimations(
+                    skinningQuery, skelQuery.GetAnimQuery(), skinnedNode, GetJobContext());
+
+                // nothing to skin if there are no joints on this skinQuery
+                // skinQuery could exist if there are blendshapes bound to a mesh as well
+                if (!skinningQuery.HasJointInfluences()) {
+                    continue;
+                }
+
+                // In USD a skinned mesh can have a different joint order from what it was in the
+                // skeleton prim If there's a different mapping, we want to take out that
+                // information for bones and transforms
+
+                std::vector<INode*> skinningJoints;
+                const auto&         mapper = skinningQuery.GetMapper();
+                if (!mapper || mapper->IsNull()) {
+                    skinningJoints = joints;
+                } else {
+                    VtIntArray indices(joints.size());
+                    for (size_t i = 0; i < joints.size(); ++i) {
+                        indices[i] = static_cast<int>(i);
+                    }
+
+                    VtIntArray remappedIndices;
+                    if (!mapper->Remap(indices, &remappedIndices)) {
+                        MaxUsd::Log::Error(
+                            "Error remapping joint indices for \"{}\".",
+                            skinningQuery.GetPrim().GetPath().GetName());
+                        continue;
+                    }
+
+                    skinningJoints.resize(remappedIndices.size());
+                    for (size_t i = 0; i < remappedIndices.size(); ++i) {
+                        int index = remappedIndices[i];
+                        if (index >= 0 && static_cast<size_t>(index) < joints.size()) {
+                            skinningJoints[i] = joints[index];
+                        }
+                    }
+                }
+
+                VtMatrix4dArray bindXforms, remappedBindXforms;
+                if (!skelQuery.GetJointWorldBindTransforms(&bindXforms)) {
+                    MaxUsd::Log::Error(
+                        "Error acquiring bind transforms to configure Skin modifier for \"{}\".",
+                        skinningQuery.GetPrim().GetPath().GetName());
+                    continue;
+                }
+
+                if (mapper && !mapper->IsNull()) {
+                    if (!mapper->IsSparse()) {
+                        mapper->RemapTransforms(bindXforms, &remappedBindXforms);
+                    }
+                }
+
+                if (joints.size() > bindXforms.size()) {
+                    MaxUsd::Log::Error(
+                        "Found incorrect number of bind transforms for joints of \"{}\" .",
+                        skinningQuery.GetPrim().GetPath().GetName());
+                    continue;
+                }
+
+                MaxUsdTranslatorSkel::ConfigureSkinModifier(
+                    skinningQuery,
+                    skinnedNode,
+                    GetJobContext(),
+                    skinningJoints,
+                    remappedBindXforms.empty() ? bindXforms : remappedBindXforms);
+            }
+        }
+    }
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/SkeletonWriter.cpp b/src/translators/SkeletonWriter.cpp
new file mode 100644
index 0000000..89b4453
--- /dev/null
+++ b/src/translators/SkeletonWriter.cpp
@@ -0,0 +1,384 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "SkeletonWriter.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+#include <MaxUsd/Utilities/MathUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/usd/usdSkel/animation.h>
+#include <pxr/usd/usdSkel/bindingAPI.h>
+#include <pxr/usd/usdSkel/cache.h>
+#include <pxr/usd/usdSkel/skeletonQuery.h>
+#include <pxr/usd/usdSkel/utils.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdSkeletonWriter::MaxUsdSkeletonWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+bool MaxUsdSkeletonWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    // Export the mesh itself and set it as guide. Only need to do so on the first frame we export.
+    if (time.IsFirstFrame()) {
+        // Export the bone geometry as a mesh (at the start time).
+        // TODO: spline will be erroneously exported as meshes if they are being used as bone for a
+        // skin modifier in the scene.
+        if (GetExportArgs().GetTranslateMeshes()) {
+            MaxUsd::MeshConverter meshConverter;
+            UsdGeomMesh           prim = meshConverter.ConvertToUSDMesh(
+                sourceNode,
+                targetPrim.GetStage(),
+                targetPrim.GetPrimPath(),
+                GetExportArgs().GetMeshConversionOptions(),
+                applyOffsetTransform,
+                false,
+                MaxUsd::ExportTime { time.GetMaxTime(), pxr::UsdTimeCode::Default(), true });
+        }
+
+        // Set the prim as purpose "guide". That way it can easily be hidden later.
+        const auto imageable = pxr::UsdGeomImageable(targetPrim);
+        imageable.CreatePurposeAttr().Set(pxr::UsdGeomTokens->guide);
+
+        ReferenceTarget*             refTarget = static_cast<ReferenceTarget*>(sourceNode);
+        MaxUsd::HasDependentSkinProc skinProc(refTarget);
+        refTarget->DoEnumDependents(&skinProc);
+        hasSkinModDependency = !skinProc.foundSkinsMod.empty();
+    }
+
+    // This Max node only depends on a Morpher modifier, no need to do anything else
+    if (!hasSkinModDependency) {
+        return true;
+    }
+
+    const UsdStagePtr                stage = targetPrim.GetStage();
+    const SdfPath                    primPath = targetPrim.GetPath();
+    const std::string                primName = targetPrim.GetName().GetString();
+    const std::map<INode*, SdfPath>& nodesToPrims = GetJobContext().GetNodesToPrimsMap();
+
+    auto nodesToPrimIt = nodesToPrims.find(sourceNode);
+    if (nodesToPrimIt == nodesToPrims.end()) {
+        MaxUsd::Log::Error(
+            L"Node \"{}\" is required on export for SkelWriter for prim {} !",
+            sourceNode->GetName(),
+            MaxUsd::UsdStringToMaxString(primName).data());
+        return false;
+    }
+
+    const SdfPath currentJointPath(nodesToPrims.at(sourceNode));
+    const bool    isYUp = GetExportArgs().GetUpAxis() == MaxUsd::USDSceneBuilderOptions::UpAxis::Y;
+
+    const SdfPath skelRootPath = MaxUsd::VerifyOrMakeSkelRoot(stage, primPath);
+    if (skelRootPath.IsEmpty()) {
+        MaxUsd::Log::Error("Couldn't Verify or Make SkelRoot path for prim {} !", primName);
+        return false;
+    }
+
+    // get valid skel and animation prim by solving naming conflict if necessary
+    const UsdSkelSkeleton skel(MaxUsd::VerifyOrMakePrimOfType<UsdSkelSkeleton>(
+        stage, skelRootPath, GetExportArgs().GetBonesPrimName()));
+    const SdfPath         skelPath = skel.GetPath();
+
+    const UsdSkelAnimation anim(MaxUsd::VerifyOrMakePrimOfType<UsdSkelAnimation>(
+        stage, skel.GetPath(), GetExportArgs().GetAnimationsPrimName()));
+
+    const UsdSkelCache     skelCache;
+    const UsdSkelAnimQuery animQuery = skelCache.GetAnimQuery(anim.GetPrim());
+    const VtTokenArray     animJointsOrder = animQuery.GetJointOrder();
+
+    // Remove the root "path" from the joints path to get the joint name
+    const auto& jointSubPath = currentJointPath.MakeRelativePath(skelRootPath);
+    if (jointSubPath.IsEmpty() || jointSubPath == SdfPath { "." }) {
+        if (time.IsFirstFrame()) {
+            MaxUsd::Log::Error(
+                "Joint path {} is trying to use an invalid root path {}. Set a valid root prim to "
+                "export UsdSkelRoot.",
+                currentJointPath.GetAsString(),
+                skelRootPath.GetAsString());
+        }
+        return false;
+    }
+
+    // Append the skel name to the beginning of each joint token for path reference when importing
+    // This is necessary because the SkelAnimation prim can hold joint from several different
+    // Skeleton prims and avoid naming collision.
+    auto skelJointToken = skelPath.AppendPath(jointSubPath).GetAsToken();
+
+    // When exporting the first frame, setup some time-independent properties.
+    if (time.IsFirstFrame()) {
+        currentSkelJointsOrder = skelCache.GetSkelQuery(skel).GetJointOrder();
+        skel.CreatePurposeAttr().Set(pxr::UsdGeomTokens->guide);
+
+        // Update the skel prim by adding then setting the newly added node.
+        currentSkelJointsOrder.emplace_back(skelJointToken);
+        if (!skel.GetJointsAttr().Set(currentSkelJointsOrder)) {
+            MaxUsd::Log::Error("Error setting Skeleton joints attribute for {} !", primName);
+            return false;
+        }
+
+        const UsdAttribute animJointAttribute = anim.GetJointsAttr();
+        VtTokenArray       animTokensArray;
+        animJointAttribute.Get(&animTokensArray);
+
+        // Update anim prim by adding then setting the new joint.
+        animTokensArray.emplace_back(skelJointToken);
+        if (!anim.GetJointsAttr().Set(animTokensArray)) {
+            MaxUsd::Log::Error("Error setting SkelAnimation joints attribute for {} !", primName);
+            return false;
+        }
+
+        // Create relationship between animation and skel prim
+        const UsdSkelBindingAPI binding = UsdSkelBindingAPI::Apply(skel.GetPrim());
+        if (!binding.GetAnimationSourceRel().SetTargets({ anim.GetPath() })) {
+            MaxUsd::Log::Error(
+                "Couldn't set SkelAnimation {} relationship for {} !",
+                anim.GetPath().GetAsString(),
+                primName);
+            return false;
+        }
+
+        // Invert the nodesToPrim map, as it will be useful later, do it here to only do it once on
+        // the first frame.
+        for (auto& e : nodesToPrims) {
+            primsToNodes.insert({ e.second, e.first });
+        }
+
+        topo = { currentSkelJointsOrder };
+    }
+
+    // Next, write animatable properties.
+    // If the joint has a parent, the joint transform is the relative transform from it.
+    auto it
+        = std::find(currentSkelJointsOrder.begin(), currentSkelJointsOrder.end(), skelJointToken);
+    auto idx = std::distance(currentSkelJointsOrder.begin(), it);
+
+    auto   parentIdx = topo.GetParent(idx);
+    INode* parentNode = nullptr;
+    if (parentIdx >= 0 && parentIdx < currentSkelJointsOrder.size()) {
+        // need to rebuild the path to the parent node they aren't 1:1 anymore
+        const auto parentJointSkel = pxr::SdfPath { currentSkelJointsOrder[parentIdx] };
+        auto       parentJointSubPath = parentJointSkel.MakeRelativePath(skelPath);
+        // remove the local reference to the skel that contains the joint then append the root node
+        // to its path
+        const auto& parentJointRootPath = skelRootPath.AppendPath(parentJointSubPath);
+        auto        parentIt = primsToNodes.find(parentJointRootPath);
+        if (parentIt != primsToNodes.end()) {
+            parentNode = parentIt->second;
+        } else {
+            MaxUsd::Log::Error(
+                "Unable to find associated 3dsMax node for {}", parentJointRootPath.GetString());
+        }
+    }
+
+    const auto& timeVal = time.GetMaxTime();
+    const auto& usdTimeCode = time.GetUsdTime();
+
+    const auto        translationsAttr = anim.GetTranslationsAttr();
+    pxr::VtVec3fArray translations;
+    // Always get previous data when exporting to Usd Default time. When not exporting default time,
+    // make sure it was authored on the given time. We don't want to get the interpolation from
+    // previous frames.
+    if (usdTimeCode == pxr::UsdTimeCode::Default()
+        || MaxUsd::IsAttributeAuthored(translationsAttr, usdTimeCode)) {
+        translationsAttr.Get(&translations, usdTimeCode);
+    }
+
+    auto              scalesAttr = anim.GetScalesAttr();
+    pxr::VtVec3hArray scales;
+    if (usdTimeCode == pxr::UsdTimeCode::Default()
+        || MaxUsd::IsAttributeAuthored(scalesAttr, usdTimeCode)) {
+        scalesAttr.Get(&scales, usdTimeCode);
+    }
+
+    auto              rotationsAttr = anim.GetRotationsAttr();
+    pxr::VtQuatfArray rotations;
+    if (usdTimeCode == pxr::UsdTimeCode::Default()
+        || MaxUsd::IsAttributeAuthored(rotationsAttr, usdTimeCode)) {
+        rotationsAttr.Get(&rotations, usdTimeCode);
+    }
+
+    auto nodeTransform = MaxUsd::GetNodeTransform(sourceNode, timeVal, isYUp);
+
+    // Can't deal with non-invertible matrices.
+    if (nodeTransform.GetDeterminant() == 0) {
+        MaxUsd::Log::Warn(
+            L"Node {0} has a non-invertible transform matrix, unable to properly use its transform "
+            L"for UsdSkelAnimation joints. The identity transform will be used at UsdTimeCode {1}.",
+            sourceNode->GetName(),
+            std::to_wstring(usdTimeCode.GetValue()));
+        nodeTransform.SetIdentity();
+    }
+
+    // We need to figure out the joint local transform.
+    pxr::GfMatrix4d jointLocalTransform;
+    jointLocalTransform.SetIdentity();
+
+    if (parentNode) {
+        pxr::GfMatrix4d parentTransform = MaxUsd::GetNodeTransform(parentNode, timeVal, isYUp);
+
+        // UsdSkel join transforms do not deal with non-uniform scaling. Make sure, and enforce
+        // that the parent transform we are using to compute the local joint transform, has uniform
+        // scaling applied.
+        if (MaxUsd::MathUtils::FixNonUniformScaling(parentTransform)) {
+            MaxUsd::Log::Warn(
+                L"Non-uniform scaling applied on parent bone {} at frame {}. A uniform "
+                L"scaling (scaling average) will be used instead.",
+                parentNode->GetName(),
+                timeVal);
+        }
+
+        jointLocalTransform = nodeTransform * parentTransform.GetInverse();
+    } else {
+        // Otherwise, just use the transform as is.
+        jointLocalTransform = nodeTransform;
+    }
+
+    // We will be using the mesh and bone positions on the first time as the rest pose.
+    // Append the current rest pose to the end of the rest pose array.
+    if (time.IsFirstFrame()) {
+        // Setup the bind transform...
+
+        MaxUsd::HasDependentSkinProc skinProc(sourceNode);
+        sourceNode->DoEnumDependents(&skinProc);
+        if (!skinProc.foundSkinsMod.empty()) {
+            const auto objectTransform = MaxUsd::GetBindTransform(
+                MaxUsd::BindTransformElement::Bone,
+                sourceNode,
+                skinProc.foundSkinsMod[0],
+                isYUp,
+                GetExportArgs().GetMeshConversionOptions().GetBakeObjectOffsetTransform());
+
+            // Get the other bind transforms that were already there, in order to add the new one
+            const UsdAttribute bindTransforms = skel.GetBindTransformsAttr();
+            VtMatrix4dArray    bindTransformsArray;
+            bindTransforms.Get(&bindTransformsArray);
+
+            bindTransformsArray.emplace_back(objectTransform);
+            if (!skel.GetBindTransformsAttr().Set(bindTransformsArray)) {
+                MaxUsd::Log::Error(
+                    "Couldn't set Skeleton bind transform attribute for {} !", primName);
+                return false;
+            }
+        }
+
+        // Setup the rest transform...
+
+        const UsdAttribute restTransforms = skel.GetRestTransformsAttr();
+        VtMatrix4dArray    restTransformsArray;
+        restTransforms.Get(&restTransformsArray);
+        restTransformsArray.emplace_back(jointLocalTransform);
+        if (!skel.GetRestTransformsAttr().Set(restTransformsArray)) {
+            MaxUsd::Log::Warn("Couldn't set Skeleton rest transform attribute for {} !", primName);
+        }
+    }
+
+    // Also make sure we don't have non-uniform scaling in the joint transform itself.
+    if (MaxUsd::MathUtils::FixNonUniformScaling(jointLocalTransform)) {
+        MaxUsd::Log::Warn(
+            "Non-uniform scaling applied on bone {} at frame {}. A uniform scaling "
+            "(scaling average) will be used instead.",
+            currentJointPath.GetString(),
+            usdTimeCode.GetValue());
+    }
+
+    // Once we have, our joint local transform, decompose it to populate the UsdSkelAnimation
+    // trans/scale/rotate attibutes.
+    GfVec3f translation;
+    GfQuatf rotation;
+    GfVec3h scale;
+    UsdSkelDecomposeTransform(jointLocalTransform, &translation, &rotation, &scale);
+
+    scales.push_back(scale);
+    translations.push_back(translation);
+    rotations.push_back(rotation);
+
+    scalesAttr.Set(scales, usdTimeCode);
+    rotationsAttr.Set(rotations, usdTimeCode);
+    translationsAttr.Set(translations, usdTimeCode);
+
+    return true;
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdSkeletonWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateSkin() && !exportArgs.GetTranslateMorpher()) {
+        return ContextSupport::Unsupported;
+    }
+
+    const bool isBakedOffset = exportArgs.GetMeshConversionOptions().GetBakeObjectOffsetTransform();
+    ReferenceTarget* refTarget = static_cast<ReferenceTarget*>(node);
+
+    // any node can be used as a bone in skin modifier
+    // check if the node is being used by any skin modifier in the scene
+    MaxUsd::HasDependentSkinProc skinProc(refTarget);
+    refTarget->DoEnumDependents(&skinProc);
+
+    // if there's a dependent skin modifier node, then we should use this skel writer
+    if (!skinProc.foundSkinsMod.empty()) {
+        if (skinProc.foundSkinsMod.size() > 1) {
+            const auto bindTm = MaxUsd::GetBindTransform(
+                MaxUsd::BindTransformElement::Bone,
+                node,
+                skinProc.foundSkinsMod[0],
+                exportArgs.GetUpAxis() == MaxUsd::USDSceneBuilderOptions::UpAxis::Y,
+                isBakedOffset);
+            for (ISkin* s : skinProc.foundSkinsMod) {
+                if (bindTm
+                    != MaxUsd::GetBindTransform(
+                        MaxUsd::BindTransformElement::Bone,
+                        node,
+                        s,
+                        exportArgs.GetUpAxis() == MaxUsd::USDSceneBuilderOptions::UpAxis::Y,
+                        isBakedOffset)) {
+                    MaxUsd::Log::Error(
+                        L"Bone node {} has different bind transforms on the skin modifiers that is "
+                        L"being "
+                        L"used. This is not supported in USD and may produced undesired results",
+                        node->GetName());
+                    break;
+                }
+            }
+        }
+
+        return ContextSupport::Fallback;
+    }
+
+    MaxUsd::HasDependentMorpherProc morpherProc(node);
+    refTarget->DoEnumDependents(&morpherProc);
+    if (morpherProc.hasDependentMorpher) {
+        return ContextSupport::Fallback;
+    }
+
+    return ContextSupport::Unsupported;
+}
+
+Interval MaxUsdSkeletonWriter::GetValidityInterval(const TimeValue& time)
+{
+    // Declare the export valid at this exact time only. We want the writer to be called into at
+    // every frame, whatever the object's validity interval, as we are also working with transforms.
+    return Interval(time, time);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/SkeletonWriter.h b/src/translators/SkeletonWriter.h
new file mode 100644
index 0000000..6e0dd32
--- /dev/null
+++ b/src/translators/SkeletonWriter.h
@@ -0,0 +1,68 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+
+#include <pxr/usd/usdSkel/topology.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class UsdSkelSkeleton;
+class UsdSkelAnimation;
+
+class MaxUsdSkeletonWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdSkeletonWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override
+    {
+        return MaxUsd::XformSplitRequirement::Always;
+    }
+
+    MaxUsd::InstancingRequirement RequiresInstancing() override
+    {
+        // Temporarily disable instancing for prims used as bones.
+        // Indeed, we need to call the Write() method on each bone instance to properly
+        // configure UsdSkel Prims.
+        return MaxUsd::InstancingRequirement::NoInstancing;
+    }
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Bone"); }
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Xform; }
+
+    WStr GetWriterName() override { return L"Skeleton writer"; }
+
+    Interval GetValidityInterval(const TimeValue& time) override;
+
+private:
+    // Inverse of GetJobContext().GetNodesToPrimsMap(), kept here to avoid recomputing it every
+    // frame.
+    std::unordered_map<pxr::SdfPath, INode*, pxr::SdfPath::Hash> primsToNodes;
+    // Cache the joinOrder and topology.
+    VtTokenArray    currentSkelJointsOrder;
+    UsdSkelTopology topo;
+    bool            hasSkinModDependency = false;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/SkinMorpherWriter.cpp b/src/translators/SkinMorpherWriter.cpp
new file mode 100644
index 0000000..db34742
--- /dev/null
+++ b/src/translators/SkinMorpherWriter.cpp
@@ -0,0 +1,1134 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "SkinMorpherWriter.h"
+
+#include <MaxUsd/MeshConversion/MeshConverter.h>
+#include <MaxUsd/Translators/WriteJobContext.h>
+#include <MaxUsd/Utilities/PluginUtils.h>
+#include <MaxUsd/Utilities/ScopeGuard.h>
+#include <MaxUsd/Utilities/TranslationUtils.h>
+#include <MaxUsd/Utilities/UsdToolsUtils.h>
+
+#include <pxr/usd/usd/attribute.h>
+#include <pxr/usd/usd/primRange.h>
+#include <pxr/usd/usdGeom/bboxCache.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdSkel/bindingAPI.h>
+#include <pxr/usd/usdSkel/blendShape.h>
+#include <pxr/usd/usdSkel/cache.h>
+#include <pxr/usd/usdSkel/root.h>
+#include <pxr/usd/usdSkel/utils.h>
+#include <pxr/usdImaging/usdImaging/tokens.h>
+
+#include <maxscript/maxscript.h>
+
+#include <IRefTargContainer.h>
+#include <iskin.h> // ISkin
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+/**
+ * \brief Struct to cache progressive morpher data on a given morpher channel.
+ * count: number of progressive morpher channels
+ * nodes: array of nodes that make up the progressive morphers
+ * weights: array of weights in which the progressive morphers are applied to 100%
+ *
+ * Note: the count can be different from the size of the nodes and weights arrays, for the cases in
+ * which the progressive morpher nodes have been deleted from the scene.
+ */
+struct ProgressiveMorphersInfo
+{
+    int                 count = 0;
+    std::vector<INode*> nodes;
+    std::vector<float>  weights;
+};
+
+/**
+ * \brief Extract normal points from the given prim.
+ * \param meshPrim The mesh prim to extract the normals from.
+ * \param outNormals The array to store the extracted normals.
+ */
+void _extractNormalsFromPrim(const UsdGeomMesh& meshPrim, VtVec3fArray& outNormals)
+{
+    // Extract normals from the prim
+    const auto hasNormalsPrimvar
+        = pxr::UsdGeomPrimvarsAPI(meshPrim).HasPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    if (hasNormalsPrimvar) {
+        pxr::UsdGeomPrimvarsAPI sourcePrimvarApi(meshPrim);
+        sourcePrimvarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals)
+            .GetAttr()
+            .Get(&outNormals);
+    } else {
+        meshPrim.GetNormalsAttr().Get(&outNormals);
+    }
+}
+
+bool _getProgressiveMorpherInfo(
+    INode*                   sourceNode,
+    int                      morpherIndex,
+    ProgressiveMorphersInfo& outProgressiveMorphers)
+{
+    static const TSTR getProgressiveMorphersInfo = LR"(
+		fn getProgressiveMorphersWeights nodeHandle idx =
+		(
+			local progressiveMorpherNodes = #()
+			local progressiveMorpherWeights = #()
+			local numberOfProgressiveMorphers = 0
+
+			local node = maxOps.getNodeByHandle nodeHandle
+			modi = (getModifierByClass node Morpher)
+			if iskindof modi Modifier and IsValidMorpherMod modi do
+			(
+				numberOfProgressiveMorphers = (WM3_NumberOfProgressiveMorphs modi idx)
+				for progressiveMorpher = 1 to numberOfProgressiveMorphers do
+				(
+					local progMorphNode = (WM3_GetProgressiveMorphNode modi idx progressiveMorpher)
+					if progMorphNode != undefined do
+					(
+						append progressiveMorpherNodes progMorphNode
+						append progressiveMorpherWeights (WM3_GetProgressiveMorphWeight modi idx progMorphNode)
+					)
+				)
+			)
+			return #(numberOfProgressiveMorphers, progressiveMorpherNodes, progressiveMorpherWeights)
+		)
+		getProgressiveMorphersWeights )";
+
+    // The script will return a 3 element array with the following data:
+    // 0 - number of progressive morphers
+    // 1 - array of nodes that make up the progressive morphers
+    // 2 - array of weights in which the progressive morphers are applied to 100%
+    static constexpr int PROGRESSIVE_NUMBER_IDX = 0;
+    static constexpr int PROGRESSIVE_NODES_IDX = 1;
+    static constexpr int PROGRESSIVE_WEIGHTS_IDX = 2;
+
+    FPValue            rvalue;
+    std::wstringstream ss;
+    ss << getModifierByClassScript << getProgressiveMorphersInfo << sourceNode->GetHandle() << L" "
+       << (morpherIndex + 1) << L'\n' << L'\0';
+    if (ExecuteMAXScriptScript(
+            ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+        && rvalue.type == TYPE_FPVALUE_TAB_BV) {
+        // First the script returned a valid array
+        if (Tab<FPValue*>* progressiveMorphersInfoArray = rvalue.fpv_tab) {
+            outProgressiveMorphers.count
+                = progressiveMorphersInfoArray->begin()[PROGRESSIVE_NUMBER_IDX]->i;
+            Tab<INode*>* nodeHandlesTab
+                = progressiveMorphersInfoArray->begin()[PROGRESSIVE_NODES_IDX]->n_tab;
+            Tab<float>* weightsTab
+                = progressiveMorphersInfoArray->begin()[PROGRESSIVE_WEIGHTS_IDX]->f_tab;
+
+            // The outProgressiveMorphers.count can be greater than zero, while the arrays are empty
+            // In that case, most likely the nodes from the scene were deleted and we can't retrieve
+            // the data
+            for (int i = 0; nodeHandlesTab && weightsTab && i < nodeHandlesTab->Count(); ++i) {
+                outProgressiveMorphers.nodes.emplace_back(nodeHandlesTab->begin()[i]);
+                outProgressiveMorphers.weights.emplace_back(weightsTab->begin()[i]);
+            }
+        }
+    }
+
+    return outProgressiveMorphers.count > 0;
+}
+
+MaxUsdSkinMorpherWriter::MaxUsdSkinMorpherWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdMeshWriter(jobCtx, node)
+{
+}
+
+// Checks if a modifier is allowed on top of the skin modifier for export to UsdSkel.
+bool _IsModOkAfterSkin(Modifier* modifier)
+{
+    // Reject world space modifiers outright... on the USD side, the skinning
+    // would be applied after the WSM, opposite to max...very little odds of
+    // producing good results...
+    if (modifier->SuperClassID() == WSM_CLASS_ID) {
+        return false;
+    }
+
+    // We maintain a black list of object space modifiers which we know will cause
+    // trouble if above the skin. More modifiers may alter the geometry, if the vert
+    // counts end up different, we also generate warnings.
+    static std::vector<Class_ID> bannedMods = {
+        Class_ID(0x73ccf34a, 0x9abc45fc), // OpenSubdiv
+        Class_ID(0x0d727b3e, 0x491d29a7), // TurboSmooth
+        Class_ID(0x00000032, 0x00007f9e), // Meshsmooth
+        Class_ID(0x332c9510, 0x38bb548c), // Chamfer,
+        Class_ID(0xa3b26ff2, 0x00000000), // Tessellate
+        Class_ID(0x10e36629, 0x0e54570e), // Subdivide
+        Class_ID(0x8eb2b3f7, 0x57da4442), // ArrayModifier
+        Class_ID(0x148132a1, 0x2ed9401c), // Lattice
+        Class_ID(0x000c4d31, 0x00000000), // Optimize
+        Class_ID(0x3ef24fe4, 0x5932330a), // ProOptimizer
+        Class_ID(0x6a9e4c6b, 0x494744dd), // MultiRes
+        Class_ID(0x6a2400ab, 0x5fd224da), // Welder
+        Class_ID(0x709029e0, 0x2cfa07bd), // Vertex_Weld
+        Class_ID(0x470a1d7a, 0x53955c31), // Cap_Holes
+        Class_ID(0x000c3a32, 0x00000000), // Face_Extrude
+        Class_ID(0x4bb0655a, 0x0e3e3a15), // Quadify_Mesh
+        Class_ID(0x71d938ca, 0x90d1dca3), // RetopologyComponent
+    };
+
+    // Checks if the modifier is in the banned list.
+    const auto it = std::find(bannedMods.begin(), bannedMods.end(), modifier->ClassID());
+    return it == bannedMods.end();
+}
+
+// Write() will only get called once, as we are returning FOREVER from GetValidityInterval().
+bool MaxUsdSkinMorpherWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    if (time.IsFirstFrame()) {
+        const SdfPath      primPath = targetPrim.GetPath();
+        const std::string& targetPrimName = primPath.GetString();
+        const auto         stage = targetPrim.GetStage();
+
+        const SdfPath skelRootPath = MaxUsd::VerifyOrMakeSkelRoot(stage, primPath);
+        if (skelRootPath.IsEmpty()) {
+            MaxUsd::Log::Error(
+                "Couldn't Verify or Make SkelRoot path for prim {} !", targetPrimName);
+            return false;
+        }
+
+        skeleton = MaxUsd::VerifyOrMakePrimOfType<UsdSkelSkeleton>(
+            stage, skelRootPath, GetExportArgs().GetBonesPrimName());
+        if (!skeleton) {
+            MaxUsd::Log::Error("Couldn't create Skeleton prim for {} !", targetPrimName);
+            return false;
+        }
+
+        skelAnimation = MaxUsd::VerifyOrMakePrimOfType<UsdSkelAnimation>(
+            stage, skeleton.GetPath(), GetExportArgs().GetAnimationsPrimName());
+        if (!skelAnimation) {
+            MaxUsd::Log::Error("Couldn't create SkelAnimation prim for {} !", targetPrimName);
+            return false;
+        }
+
+        const std::map<INode*, SdfPath>& nodesToPrims = GetJobContext().GetNodesToPrimsMap();
+        const MaxUsd::TimeConfig         timeConfig = GetExportArgs().GetResolvedTimeConfig();
+        const auto                       startTime = timeConfig.GetStartTime();
+
+        const pxr::SdfPath skelPath = skeleton.GetPath();
+        UsdSkelBindingAPI  binding = UsdSkelBindingAPI::Apply(targetPrim);
+        if (!binding.CreateSkeletonRel().SetTargets(SdfPathVector({ skelPath }))) {
+            MaxUsd::Log::Error(
+                "Couldn't create Skeleton binding for prim {} with path {} !",
+                targetPrimName,
+                skelPath.GetAsString());
+            return false;
+        }
+
+        // Create relationship between animation and skel prim
+        // this could be redundant with SkelWriter, but for cases with no skeleton, the morpher also
+        // needs this
+        const UsdSkelBindingAPI skelBinding = UsdSkelBindingAPI::Apply(skeleton.GetPrim());
+        if (!skelBinding.GetAnimationSourceRel().SetTargets({ skelAnimation.GetPath() })) {
+            MaxUsd::Log::Error(
+                "Couldn't set SkelAnimation {} relationship for {} !",
+                skelAnimation.GetPath().GetAsString(),
+                skelPath.GetName());
+            return false;
+        }
+
+        auto meshConvertOptions = GetExportArgs().GetMeshConversionOptions();
+        meshConvertOptions.SetPrimvarLayoutInference(
+            MaxUsd::MaxMeshConversionOptions::PrimvarLayoutInference::Never);
+
+        const std::vector<ISkin*>    skinModifiers = MaxUsd::GetMaxSkinModifiers(sourceNode);
+        const std::vector<Modifier*> morphers = MaxUsd::GetMaxMorpherModifiers(sourceNode);
+        if (!morphers.empty()) {
+            morpherProperties.morpher = morphers[0];
+        }
+
+        // if there's a morpher, we need to remove all it's influence before exporting the original
+        // mesh
+        {
+            const auto disableMorpher = MaxUsd::MakeScopeGuard(
+                [this]() {
+                    if (morpherProperties.morpher) {
+                        morpherProperties.morpher->DisableMod();
+                    }
+                },
+                [this]() {
+                    if (morpherProperties.morpher) {
+                        morpherProperties.morpher->EnableMod();
+                    }
+                });
+
+            // if translating skin, we need to disable certain modifiers
+            if (!skinModifiers.empty() && GetExportArgs().GetTranslateSkin()) {
+                skinnedMesh = DisabledModsAndWriteMeshData(
+                    sourceNode,
+                    stage,
+                    primPath,
+                    applyOffsetTransform,
+                    MaxUsd::ExportTime { time.GetMaxTime(), pxr::UsdTimeCode::Default(), true });
+            } else {
+                MaxUsd::MeshConverter meshConverter;
+                skinnedMesh = meshConverter.ConvertToUSDMesh(
+                    sourceNode,
+                    stage,
+                    primPath,
+                    meshConvertOptions,
+                    applyOffsetTransform,
+                    false,
+                    MaxUsd::ExportTime { time.GetMaxTime(), pxr::UsdTimeCode::Default(), true });
+            }
+        }
+
+        if (morpherProperties.morpher && GetExportArgs().GetTranslateMorpher()) {
+            if (morphers.size() > 1) {
+                MaxUsd::Log::Warn(
+                    "Only one Morpher modifier per object is supported on export. Node {} contains "
+                    "more than one !",
+                    MaxUsd::MaxStringToUsdString(sourceNode->GetName()));
+            }
+
+            UsdAttribute      shapeWeightAttribute = skelAnimation.GetBlendShapeWeightsAttr();
+            pxr::VtFloatArray defaultShapeWeights;
+            shapeWeightAttribute.Get(&defaultShapeWeights);
+
+            /**
+             * SubAnim(0) is the overall UI morpher ui.
+             * That UI has the following things - Taken from max's source code (wm3_main.cpp):
+             static ParamBlockDescID GlobalParams[] = {
+                            { TYPE_INT, NULL, FALSE, 0 },	// overrides: Use Limits
+                            { TYPE_FLOAT, NULL, FALSE, 1 },	// overrides: Spinner Min
+                            { TYPE_FLOAT, NULL, FALSE, 2 },	// overrides: Spinner Max
+                            { TYPE_INT, NULL, FALSE, 3 },	// overrides: Use Selection
+                            { TYPE_INT, NULL, FALSE, 4 },	// advanced:  Value increments
+                            { TYPE_INT, NULL, FALSE, 5 },	// clist:	  Auto load
+             };
+             */
+            if (Animatable* morpherUIControls = morpherProperties.morpher->SubAnim(0)) {
+                VtArray<TfToken> morphTokens;
+                SdfPathVector    morphPaths;
+
+                morpherProperties.useLimits
+                    = static_cast<IParamBlock*>(morpherUIControls)->GetInt(0, startTime);
+                morpherProperties.minLimit
+                    = static_cast<IParamBlock*>(morpherUIControls)->GetFloat(1, startTime);
+                morpherProperties.maxLimit
+                    = static_cast<IParamBlock*>(morpherUIControls)->GetFloat(2, startTime);
+
+                /*
+                 * In order to export morphers. We'll need to change the weight for each morph
+                 * target. First, we set the weight of all channels to 0. Then, one by one we set
+                 * them to max weight. However, it's possible to assign controllers to the spinners
+                 * (morph targets). The controller makes it so that it's no longer possible to set
+                 * values direct on the channels. Because of this, before exporting, we remove the
+                 * controllers from the channels while we operate changing the weights as we need
+                 * and, at the end, we re-assign the controllers back.
+                 */
+
+                // The controllers reference would get cleaned up and made null when we removed it,
+                // so we use this container to make sure that the controllers still have a valid
+                // reference
+                SingleRefMaker   containerHolder;
+                ReferenceTarget* container = (ReferenceTarget*)GetCOREInterface()->CreateInstance(
+                    REF_TARGET_CLASS_ID, REFTARG_CONTAINER_CLASS_ID);
+                containerHolder.SetRef(container);
+                IRefTargContainer* containerRef = static_cast<IRefTargContainer*>(container);
+
+                std::vector<unsigned int> usedChannels;
+                // need to modify the morpher weights. scope guarding to make sure to reset it
+                // afterwards
+                const auto removeControllers = MaxUsd::MakeScopeGuard(
+                    [this, &containerRef, &usedChannels, &defaultShapeWeights, &startTime]() {
+                        auto morpher = morpherProperties.morpher;
+                        for (int i = 1; i < morpher->NumSubs(); ++i) {
+                            if (Animatable* animatable = morpher->SubAnim(i)) {
+                                auto animatablePB = static_cast<IParamBlock*>(animatable);
+
+                                // cache the controller previously set for this morph target
+                                containerRef->SetItem(i, animatablePB->GetController(0));
+
+                                const float morpherWeight
+                                    = GetMorpherWeightAtTime(animatablePB, startTime);
+
+                                // map Max's weight (0-100) to usd weight values (0-1). See
+                                // MorpherProperties
+                                defaultShapeWeights.emplace_back(morpherWeight / 100.f);
+                                usedChannels.emplace_back(i);
+
+                                // removing the controller to prevent the weight value being locked
+                                animatablePB->RemoveController(0);
+
+                                // need to set all weights to 0 before exporting morph targets
+                                animatablePB->SetValue(0, startTime, 0);
+                            }
+                        }
+                    },
+                    [this, &containerRef, &usedChannels, &defaultShapeWeights, &startTime]() {
+                        for (int i = 0; i < usedChannels.size(); ++i) {
+                            const int c = usedChannels[i];
+                            if (Animatable* animatable = morpherProperties.morpher->SubAnim(c)) {
+                                auto animatablePB = static_cast<IParamBlock*>(animatable);
+
+                                // remap the weight from usd to max values. See MorpherProperties
+                                // comments
+                                animatablePB->SetValue(
+                                    0, startTime, defaultShapeWeights[i] * 100.f);
+
+                                // re-assigning the controller the we had previously removed
+                                animatablePB->SetController(
+                                    0, static_cast<Control*>(containerRef->GetItem(c)), FALSE);
+                            }
+                        }
+                    });
+
+                {
+                    // we can't access the morpher names from c++, so we need a maxscript call to
+                    // get them
+                    std::vector<std::wstring> morpherNames;
+                    GetMorpherNames(sourceNode, morpherNames);
+                    if (morpherNames.size() != usedChannels.size()) {
+                        MaxUsd::Log::Warn(
+                            "Different amount of Morpher names ({}) and used morpher channels ({}) "
+                            "!",
+                            morpherNames.size(),
+                            usedChannels.size());
+
+                        // if we got less names than expected, we fill the array with preset names
+                        // {NodeName}_BlendShape
+                        MaxUsd::UniqueNameGenerator nameGenerator;
+                        const std::string           newBlendShapeName
+                            = primPath.GetElementString() + "_BlendShape";
+                        while (morpherNames.size() < usedChannels.size()) {
+                            morpherNames.emplace_back(MaxUsd::UsdStringToMaxString(
+                                                          nameGenerator.GetName(newBlendShapeName))
+                                                          .data());
+                        }
+                    }
+
+                    for (size_t i = 0; i < usedChannels.size(); ++i) {
+                        auto animatablePB = static_cast<IParamBlock*>(
+                            morpherProperties.morpher->SubAnim(usedChannels[i]));
+
+                        // creates an extra mesh in the stage to calculate deltas. this mesh will be
+                        // removed later
+                        UsdGeomMesh           targetMeshPrim;
+                        UsdSkelBlendShape     blendShape;
+                        MaxUsd::MeshConverter targetMeshConverter;
+                        {
+                            // sets each morph channel to max weight, to export the equivalent
+                            // blendshape then bring it back to 0 weight once it's done exporting,
+                            // to export the next channel
+                            const auto resetChannelWeightScopeGuard = MaxUsd::MakeScopeGuard(
+                                [animatablePB, this, &startTime]() {
+                                    animatablePB->SetValue(
+                                        0, startTime, morpherProperties.maxLimit);
+                                },
+                                [animatablePB, &startTime]() {
+                                    animatablePB->SetValue(0, startTime, 0);
+                                });
+
+                            if (!skinModifiers.empty() && GetExportArgs().GetTranslateSkin()) {
+                                targetMeshPrim = DisabledModsAndWriteMeshData(
+                                    sourceNode,
+                                    stage,
+                                    primPath.ReplaceName(TfToken(
+                                        primPath.GetElementString()
+                                        + pxr::TfMakeValidIdentifier(MaxUsd::GenerateGUID()))),
+                                    applyOffsetTransform,
+                                    MaxUsd::ExportTime {
+                                        startTime, pxr::UsdTimeCode::Default(), true },
+                                    false);
+                            } else {
+                                // if not exporting skin, we can take the mesh as is to create
+                                // blendshapes
+                                targetMeshPrim = targetMeshConverter.ConvertToUSDMesh(
+                                    sourceNode,
+                                    stage,
+                                    primPath.ReplaceName(TfToken(
+                                        primPath.GetElementString()
+                                        + pxr::TfMakeValidIdentifier(MaxUsd::GenerateGUID()))),
+                                    meshConvertOptions,
+                                    applyOffsetTransform,
+                                    false,
+                                    MaxUsd::ExportTime {
+                                        startTime, pxr::UsdTimeCode::Default(), true });
+                            }
+                            blendShape
+                                = CreateBlendShape(skinnedMesh, targetMeshPrim, morpherNames[i]);
+                        }
+
+                        CreateInBetweens(
+                            sourceNode, skinnedMesh, static_cast<int>(i), blendShape, startTime);
+                        morphPaths.emplace_back(blendShape.GetPath());
+                        std::string blendShapePathString = blendShape.GetPath().GetString();
+                        std::replace(
+                            blendShapePathString.begin(), blendShapePathString.end(), '/', '_');
+                        morphTokens.emplace_back(blendShapePathString);
+
+                        // clean up the extra mesh created to calculate blendshapes delta
+                        stage->RemovePrim(targetMeshPrim.GetPath());
+                    }
+                }
+
+                if (!binding.GetBlendShapesAttr().Set(morphTokens)) {
+                    MaxUsd::Log::Error(
+                        "Couldn't create BlendShape attribute for {} !", targetPrimName);
+                }
+
+                if (!binding.GetBlendShapeTargetsRel().SetTargets(morphPaths)) {
+                    MaxUsd::Log::Error(
+                        "Couldn't create BlendShape Target relationship for {} !", targetPrimName);
+                }
+
+                const UsdAttribute blendShapeAnimAttr = skelAnimation.GetBlendShapesAttr();
+                VtTokenArray       existingBlendShapes;
+                blendShapeAnimAttr.Get(&existingBlendShapes);
+                for (const auto& bsToken : morphTokens) {
+                    existingBlendShapes.emplace_back(bsToken);
+                }
+
+                if (!skelAnimation.GetBlendShapesAttr().Set(existingBlendShapes)) {
+                    MaxUsd::Log::Error(
+                        "Error setting BlendShapes to the animation token {} !",
+                        skelAnimation.GetPath().GetString());
+                }
+            }
+        }
+
+        if (!skinModifiers.empty() && GetExportArgs().GetTranslateSkin()
+            && (skinModifiers[0]->GetNumBones() > 0)) {
+            if (skinModifiers.size() > 1) {
+                MaxUsd::Log::Warn(
+                    "Only one skin modifier per object is supported on export. Node {} contains "
+                    "more than one !",
+                    MaxUsd::MaxStringToUsdString(sourceNode->GetName()));
+            }
+
+            ISkin* skin = skinModifiers[0];
+            auto   skinBindTransform = MaxUsd::GetBindTransform(
+                MaxUsd::BindTransformElement::Mesh,
+                sourceNode,
+                skin,
+                GetExportArgs().GetUpAxis() == MaxUsd::USDSceneBuilderOptions::UpAxis::Y,
+                meshConvertOptions.GetBakeObjectOffsetTransform());
+            binding.GetGeomBindTransformAttr().Set(skinBindTransform);
+
+            VtTokenArray jointsPaths;
+            for (int i = 0; i < skin->GetNumBones(); ++i) {
+                // append bones as they are listed on the skin modifier
+                INode* boneNode = skin->GetBone(i);
+                if (boneNode) {
+                    if (nodesToPrims.find(boneNode) != nodesToPrims.end()) {
+                        const auto& jointPath = nodesToPrims.at(boneNode);
+                        if (jointPath.GetCommonPrefix(skelRootPath) == SdfPath { "/" }) {
+                            MaxUsd::Log::Error(
+                                "Max Node {} is trying to use an invalid root path {} for UsdSkel "
+                                "data. "
+                                "Set a valid root prim to export UsdSkelRoot.",
+                                MaxUsd::MaxStringToUsdString(sourceNode->GetName()),
+                                skelRootPath.GetString());
+                            return false;
+                        }
+                        const auto jointSubPath = jointPath.MakeRelativePath(skelRootPath);
+                        jointsPaths.emplace_back(skelPath.AppendPath(jointSubPath).GetAsToken());
+                    } else {
+                        MaxUsd::Log::Warn(
+                            "Prim {} relies on bone {} which is not being exported. Results might "
+                            "not be correct!",
+                            targetPrimName,
+                            MaxUsd::MaxStringToUsdString(boneNode->GetName()));
+                    }
+                }
+            }
+
+            VtIntArray        jointsIndicesArray;
+            VtFloatArray      jointsWeightsArray;
+            ISkinContextData* skinData = skin->GetContextInterface(sourceNode);
+            if (skinData) {
+                const unsigned long long numOfPoints = skinData->GetNumPoints();
+                const int                numOfJoints = skin->GetNumBones();
+                jointsIndicesArray.resize(numOfPoints * numOfJoints);
+                jointsWeightsArray.resize(numOfPoints * numOfJoints);
+                for (unsigned int i = 0; i < numOfPoints; ++i) {
+                    int numOfAssignedB = skinData->GetNumAssignedBones(i);
+                    for (int j = 0; j < numOfJoints; ++j) {
+                        jointsIndicesArray[i * numOfJoints + j] = j; // boneIndex;
+                    }
+
+                    for (int b = 0; b < numOfAssignedB; ++b) {
+                        const int   boneIndex = skinData->GetAssignedBone(i, b);
+                        const float boneWeight = skinData->GetBoneWeight(i, b);
+                        if (boneIndex >= 0) {
+                            jointsWeightsArray[i * numOfJoints + boneIndex] = boneWeight;
+                        }
+                    }
+                }
+            }
+
+            pxr::VtVec3fArray vertices;
+            skinnedMesh.GetPointsAttr().Get(&vertices);
+            const unsigned long long numberOfMeshVertices = vertices.size();
+            const int                numberOfSkinVertices = skinData->GetNumPoints();
+            if (numberOfMeshVertices != numberOfSkinVertices) {
+                MaxUsd::Log::Error(
+                    "The number of vertices on the exported mesh differs from the vertices on the "
+                    "skin "
+                    "modifier for "
+                    "node {}! This could be caused by a modifier higher on the stack and may cause "
+                    "unexpected results.",
+                    MaxUsd::MaxStringToUsdString(sourceNode->GetName()));
+
+                const int diff
+                    = std::abs(static_cast<int>(numberOfMeshVertices) - numberOfSkinVertices);
+                if (numberOfMeshVertices > numberOfSkinVertices) {
+                    // adding a default weight for the padded vertices
+                    const float defaultWeight = 1.0f / (float)skin->GetNumBones();
+                    for (unsigned long long i = 0; i < diff; ++i) {
+                        for (int j = 0; j < skin->GetNumBones(); ++j) {
+                            jointsIndicesArray.emplace_back(0);
+                            jointsWeightsArray.emplace_back(defaultWeight);
+                        }
+                    }
+                } else {
+                    const auto deltaSize = diff * skin->GetNumBones();
+                    jointsIndicesArray.resize(jointsIndicesArray.size() - deltaSize);
+                    jointsWeightsArray.resize(jointsWeightsArray.size() - deltaSize);
+                }
+            }
+
+            if (!UsdSkelSortInfluences(
+                    &jointsIndicesArray, &jointsWeightsArray, skin->GetNumBones())) {
+                MaxUsd::Log::Warn("Couldn't sort influences for {} !", targetPrimName);
+            }
+
+            if (!binding.GetJointsAttr().Set(jointsPaths)) {
+                MaxUsd::Log::Error("Couldn't set joints attribute for {} !", targetPrimName);
+            }
+
+            UsdGeomPrimvar jointsIndexAttribute
+                = binding.CreateJointIndicesPrimvar(false, skin->GetNumBones());
+            if (!jointsIndexAttribute.Set(jointsIndicesArray)) {
+                MaxUsd::Log::Error(
+                    "Couldn't set indices attribute for {} !", targetPrim.GetName().GetString());
+            }
+
+            UsdGeomPrimvar jointsWeightAttribute
+                = binding.CreateJointWeightsPrimvar(false, skin->GetNumBones());
+            pxr::UsdSkelNormalizeWeights(jointsWeightsArray, skin->GetNumBones());
+            if (!jointsWeightAttribute.Set(jointsWeightsArray)) {
+                MaxUsd::Log::Error(
+                    "Couldn't set joints weights attribute for {} !",
+                    targetPrim.GetName().GetString());
+            }
+        } // end if(!skinModifiers.empty())
+    } // end if (time.IsFirstFrame())
+
+    // if morpher is valid, we need to write the weights changes over time
+    if (morpherProperties.morpher) {
+        WriteMorphWeightAnimations(targetPrim, time);
+    }
+
+    return true;
+}
+
+bool MaxUsdSkinMorpherWriter::PostExport(UsdPrim& targetPrim)
+{
+    if (!skinnedMesh.GetPrim().IsValid()) {
+        MaxUsd::Log::Error(
+            "PostExport didn't have a valid mesh for prim {} !", targetPrim.GetName().GetString());
+        return false;
+    }
+
+    if (!skeleton.GetPrim().IsValid()) {
+        MaxUsd::Log::Error(
+            "PostExport didn't have a valid UsdSkeleton for prim {} !",
+            targetPrim.GetName().GetString());
+        return false;
+    }
+
+    if (!skelAnimation.GetPrim().IsValid()) {
+        MaxUsd::Log::Error(
+            "PostExport didn't have a valid UsdSkelAnimation for prim {} !",
+            targetPrim.GetName().GetString());
+        return false;
+    }
+
+    // USD skinned meshes can't have extent attribute
+    skinnedMesh.GetExtentAttr().Clear();
+
+    const UsdStagePtr stage = targetPrim.GetStage();
+    const SdfPath     targetPath = targetPrim.GetPath();
+    const SdfPath     skelRootPath = MaxUsd::VerifyOrMakeSkelRoot(stage, targetPath);
+    const UsdSkelRoot skelRoot = UsdSkelRoot(stage->GetPrimAtPath(skelRootPath));
+
+    auto         predicates = !pxr::UsdPrimIsAbstract && pxr::UsdPrimIsDefined;
+    UsdPrimRange primRange(
+        stage->GetPrimAtPath(skelRootPath), pxr::UsdTraverseInstanceProxies(predicates));
+
+    std::vector<GfRange3d>              cachedRanges;
+    const std::vector<pxr::UsdTimeCode> usdTimeSamples
+        = MaxUsd::GetUsdTimeSamplesForExport(stage, GetExportArgs().GetResolvedTimeConfig());
+    cachedRanges.reserve(usdTimeSamples.size());
+
+    UsdAttribute skelRootExtents;
+    // only calculate bounding box for all prims once
+    if (!skelRoot.GetExtentAttr().IsAuthored() && !usdTimeSamples.empty()) {
+        skelRootExtents = skelRoot.CreateExtentAttr();
+        static const auto includePurposes
+            = { UsdGeomTokens->default_, UsdGeomTokens->renderVisibility, UsdGeomTokens->proxy };
+        for (size_t i = 0; i < usdTimeSamples.size(); ++i) {
+            const pxr::UsdTimeCode& timeCode = usdTimeSamples[i];
+            UsdGeomBBoxCache        tmpCache { timeCode, includePurposes, true };
+
+            // calculate the total cached extent on the current usdTimeCode
+            GfRange3d extentAtTime {};
+            for (const pxr::UsdPrim& prim : primRange) {
+                if (prim.IsA<pxr::UsdGeomImageable>()) {
+                    auto bbox = tmpCache.ComputeRelativeBound(prim, skelRoot.GetPrim());
+                    extentAtTime.UnionWith(bbox.ComputeAlignedRange());
+                }
+            }
+
+            VtVec3fArray skelExtents(2);
+            if (UsdGeomBoundable::ComputeExtentFromPlugins(skelRoot, timeCode, &skelExtents)) {
+                GfRange3d skelRange = { skelExtents[0], skelExtents[1] };
+                extentAtTime.UnionWith(skelRange);
+            }
+
+            // convert back from range to extent (array) to set  the attribute
+            VtVec3fArray totalExtents
+                = { GfVec3f(extentAtTime.GetMin()), GfVec3f(extentAtTime.GetMax()) };
+            skelRootExtents.Set(totalExtents, timeCode);
+        }
+    }
+
+    return true;
+}
+
+Interval MaxUsdSkinMorpherWriter::GetValidityInterval(const TimeValue& time)
+{
+    return Interval(time, time);
+}
+
+MaxUsdSkinMorpherWriter::ContextSupport
+MaxUsdSkinMorpherWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateMeshes()) {
+        return ContextSupport::Unsupported;
+    }
+
+    if (!exportArgs.GetTranslateSkin() && !exportArgs.GetTranslateMorpher()) {
+        return ContextSupport::Unsupported;
+    }
+
+    // For now, only support skinning of object that can/should be converted to meshes, exclude
+    // shapes.
+    const auto obj = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    const bool meshConvertible = obj->CanConvertToType(Class_ID(TRIOBJ_CLASS_ID, 0))
+        || obj->CanConvertToType(Class_ID(POLYOBJ_CLASS_ID, 0));
+    if (!meshConvertible || obj->SuperClassID() == SHAPE_CLASS_ID) {
+        return ContextSupport::Unsupported;
+    }
+
+    const auto allEnabledMods = MaxUsd::GetAllModifiers(node);
+    ISkin*     firstSkinFound = nullptr;
+    Modifier*  firstMorpherFound = nullptr;
+
+    for (const auto& mod : allEnabledMods) {
+        if (mod->ClassID() == Class_ID(0x17bb6854, 0xa5cba2a3) && !firstMorpherFound) {
+            // only cache the first morpher on the stack
+            firstMorpherFound = mod;
+        } else if (auto* skin = static_cast<ISkin*>(mod->GetInterface(I_SKIN))) {
+            firstSkinFound = skin;
+
+            // We may not be able to match the results in USD if a morpher is on top the of the skin
+            // modifier in max
+            if (firstMorpherFound) {
+                MaxUsd::Log::Warn(
+                    L"The node {} has a {} modifier on top of the {} modifier. USD results may not "
+                    L"match "
+                    "3ds Max scene!",
+                    node->GetName(),
+                    firstMorpherFound->GetName(true).data(),
+                    mod->GetName(true).data());
+            }
+        }
+    }
+
+    // we only check the first found skin modifier
+    if (firstSkinFound) {
+        if (firstSkinFound->GetNumBones() > 0) {
+            return ContextSupport::Fallback;
+        }
+
+        // don't exit here because there could still be valid morphers
+        MaxUsd::Log::Warn(
+            "The node {} has a skin modifier, but no bones on it!",
+            MaxUsd::MaxStringToUsdString(node->GetName()));
+    }
+
+    return firstMorpherFound ? ContextSupport::Fallback : ContextSupport::Unsupported;
+}
+
+pxr::UsdGeomMesh MaxUsdSkinMorpherWriter::DisabledModsAndWriteMeshData(
+    INode*                    node,
+    UsdStageWeakPtr           stage,
+    const pxr::SdfPath&       primPath,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time,
+    bool                      writeWarning)
+{
+    // Some modifiers that might be found higher on the stack may alter the geometry,
+    // which will render our skinning data useless.
+    // Get rid of some of them that will always create issues (temporarily disable).
+    // Other mods may still alter the geometry, in those cases, we warn the user and
+    // produce a "best effort" result which may or not be correct.
+    const auto             allEnabledMods = MaxUsd::GetAllModifiers(node);
+    std::vector<Modifier*> disabledMods;
+
+    const auto scopeGuard = MaxUsd::MakeScopeGuard(
+        [&allEnabledMods, node, &disabledMods, writeWarning]() {
+            // Mods are ordered, starting with the top of the stack (WSMs come first).
+            for (const auto& mod : allEnabledMods) {
+                // When we get to the skin modifier, we can stop. Note that we do not handle cases
+                // with multiple skin modifiers, in that case a warning is raised earlier.
+                if (static_cast<ISkin*>(mod->GetInterface(I_SKIN))) {
+                    // we need to export the mesh without the skin modifier as well.
+                    // this removes any initial deformations to the meshes when binding to the skin
+                    // modifier
+                    mod->DisableMod();
+                    disabledMods.push_back(mod);
+
+                    break;
+                }
+
+                if (_IsModOkAfterSkin(mod)) {
+                    continue;
+                }
+
+                // Disable the modifier, and keep track of it so we can re-enable it after
+                // the mesh export. Warn the user.
+                mod->DisableMod();
+                disabledMods.push_back(mod);
+
+                if (writeWarning) {
+                    MaxUsd::Log::Warn(
+                        L"Node {} has a {} modifier on top of the Skin modifier. This would alter "
+                        L"the "
+                        L"geometry and make the "
+                        L"skinning points invalid when translated to USDSkel. The modifier will be "
+                        L"disabled temporarily.",
+                        node->GetName(),
+                        mod->GetName(false).data());
+                }
+            }
+        },
+        [&disabledMods]() {
+            // Reenable any modifiers we disabled for the export.
+            for (const auto& mod : disabledMods) {
+                mod->EnableMod();
+            }
+        });
+
+    auto meshConvertOptions = GetExportArgs().GetMeshConversionOptions();
+    meshConvertOptions.SetPrimvarLayoutInference(
+        MaxUsd::MaxMeshConversionOptions::PrimvarLayoutInference::Never);
+    MaxUsd::MeshConverter meshConverter;
+    UsdGeomMesh           prim = meshConverter.ConvertToUSDMesh(
+        node,
+        stage,
+        primPath,
+        meshConvertOptions,
+        applyOffsetTransform,
+        false,
+        MaxUsd::ExportTime { time.GetMaxTime(), pxr::UsdTimeCode::Default(), true });
+
+    return prim;
+}
+
+float MaxUsdSkinMorpherWriter::GetMorpherWeightAtTime(IParamBlock* pb, const TimeValue& timeValue)
+    const
+{
+    if (!pb) {
+        return 0.f;
+    }
+
+    const float pbWeight = pb->GetFloat(0, timeValue);
+    if (morpherProperties.useLimits) {
+        if (pbWeight >= morpherProperties.minLimit && pbWeight <= morpherProperties.maxLimit) {
+            return pbWeight;
+        }
+
+        if (pbWeight > morpherProperties.maxLimit) {
+            return morpherProperties.maxLimit;
+        }
+
+        if (pbWeight < morpherProperties.minLimit) {
+            return morpherProperties.minLimit;
+        }
+    }
+
+    return pbWeight;
+}
+
+void MaxUsdSkinMorpherWriter::GetMorpherNames(INode* node, std::vector<std::wstring>& morpherNames)
+{
+    static const TSTR getMorpherNamesScript = LR"(
+	fn extractMorpherNames nodeHandle =
+	(
+	    local node = maxOps.getNodeByHandle nodeHandle
+	    local morphNames = #()
+	    modi = (getModifierByClass node Morpher)
+	    if iskindof modi Modifier and IsValidMorpherMod modi do
+	    (
+	        -- each morpher has 100 channels (possible morph targets), iterate over all those and check which has a valid data/morph target
+	        for channelNumber = 1 to (WM3_NumberOfChannels modi) where WM3_MC_IsValid modi channelNumber and WM3_MC_HasData modi channelNumber do
+	        (
+	            -- cache the channel's name to use as the USD Blendshape name
+	            append morphNames ( WM3_MC_GetName modi channelNumber)
+	        )
+	    )
+	    return morphNames
+	)
+	extractMorpherNames )";
+
+    std::wstringstream ss;
+    ss << getModifierByClassScript << getMorpherNamesScript << node->GetHandle() << L'\n' << L'\0';
+
+    FPValue rvalue;
+    // MAXScript::ScriptSource::Dynamic doesn't exist for max 2022, so using
+    // static_cast<MAXScript::ScriptSource>(3) as hack for now
+    if (bool executeReturn
+        = ExecuteMAXScriptScript(
+              ss.str().c_str(), static_cast<MAXScript::ScriptSource>(3), false, &rvalue)
+            && rvalue.type == TYPE_STRING_TAB) {
+        Tab<const wchar_t*>* morphersNamesArray = rvalue.s_tab;
+        for (int i = 0; morphersNamesArray && i < morphersNamesArray->Count(); ++i) {
+            morpherNames.emplace_back(morphersNamesArray->begin()[i]);
+        }
+    } else {
+        MaxUsd::Log::Error(
+            L"Error running script to acquiring Morpher channel names for Node {}",
+            node->GetName());
+    }
+}
+
+UsdSkelBlendShape MaxUsdSkinMorpherWriter::CreateBlendShape(
+    const UsdGeomMesh&  sourceMesh,
+    const UsdGeomMesh&  targetMesh,
+    const std::wstring& name)
+{
+    const auto nodePrim = sourceMesh.GetPrim();
+    auto       stage = nodePrim.GetStage();
+
+    VtVec3fArray sourceMeshPoints, targetMeshPoints, sourceNormals, targetNormals, deltaPoints,
+        deltaNormals;
+
+    sourceMesh.GetPointsAttr().Get(&sourceMeshPoints);
+    targetMesh.GetPointsAttr().Get(&targetMeshPoints);
+
+    const auto hasNormalsPrimvar
+        = pxr::UsdGeomPrimvarsAPI(nodePrim).HasPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    if (hasNormalsPrimvar) {
+        pxr::UsdGeomPrimvarsAPI sourcePrimvarApi(nodePrim);
+        pxr::UsdGeomPrimvarsAPI targetPrimvarApi(targetMesh);
+        sourcePrimvarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals)
+            .GetAttr()
+            .Get(&sourceNormals);
+        targetPrimvarApi.GetPrimvar(pxr::UsdImagingTokens->primvarsNormals)
+            .GetAttr()
+            .Get(&targetNormals);
+    } else {
+        sourceMesh.GetNormalsAttr().Get(&sourceNormals);
+        targetMesh.GetNormalsAttr().Get(&targetNormals);
+    }
+
+    const size_t numDeltaPoints = sourceMeshPoints.size();
+    deltaPoints.resize(numDeltaPoints);
+    deltaNormals.resize(sourceNormals.size());
+
+    for (size_t i = 0; i < numDeltaPoints; ++i) {
+        deltaPoints[i] = targetMeshPoints[i] - sourceMeshPoints[i];
+    }
+
+    for (size_t i = 0; i < sourceNormals.size(); ++i) {
+        deltaNormals[i] = targetNormals[i] - sourceNormals[i];
+    }
+
+    // new blendshape prim to represent the morph target
+    UsdSkelBlendShape bs = MaxUsd::VerifyOrMakePrimOfType<UsdSkelBlendShape>(
+        stage,
+        nodePrim.GetPath(),
+        TfToken(TfMakeValidIdentifier(MaxUsd::MaxStringToUsdString(name.c_str()))));
+
+    const auto         blendShapePath = bs.GetPath();
+    const std::string& blendShapeName = blendShapePath.GetName();
+
+    if (!bs.CreateOffsetsAttr().Set(deltaPoints)) {
+        MaxUsd::Log::Error(
+            "Couldn't create offset points attribute for BlendShape {} !", blendShapeName);
+    }
+
+    if (!bs.CreateNormalOffsetsAttr().Set(deltaNormals)) {
+        MaxUsd::Log::Error(
+            "Couldn't create offset normals attribute for BlendShape {} !", blendShapeName);
+    }
+
+    return bs;
+}
+
+void MaxUsdSkinMorpherWriter::CreateInBetweens(
+    INode*                   sourceNode,
+    const UsdGeomMesh&       sourceMeshPrim,
+    int                      morpherIndex,
+    const UsdSkelBlendShape& blendShape,
+    TimeValue                startTime)
+{
+    const auto              nodePrim = sourceMeshPrim.GetPrim();
+    const auto              primPath = nodePrim.GetPath();
+    auto                    stage = nodePrim.GetStage();
+    ProgressiveMorphersInfo progressiveMorpherInfo;
+    _getProgressiveMorpherInfo(sourceNode, morpherIndex, progressiveMorpherInfo);
+
+    // only has the main target mesh, no progressive morphers
+    if (progressiveMorpherInfo.count <= 1) {
+        return;
+    }
+
+    if (progressiveMorpherInfo.count != progressiveMorpherInfo.nodes.size()) {
+        MaxUsd::Log::Error(
+            "Can't convert some progressive morphers in channel {} for Node "
+            "\"{}\" to USD. Most likely the nodes used for the progressive "
+            "morphers have been deleted from the scene.",
+            morpherIndex + 1,
+            MaxUsd::MaxStringToUsdString(sourceNode->GetName()));
+        return;
+    }
+
+    VtVec3fArray sourceMeshPoints, sourceNormals;
+    sourceMeshPrim.GetPointsAttr().Get(&sourceMeshPoints);
+    const auto hasNormalsPrimvar
+        = pxr::UsdGeomPrimvarsAPI(nodePrim).HasPrimvar(pxr::UsdImagingTokens->primvarsNormals);
+    _extractNormalsFromPrim(sourceMeshPrim, sourceNormals);
+
+    for (size_t idx = 0; idx < progressiveMorpherInfo.nodes.size(); ++idx) {
+        // export the progressive morpher node as a temporary usd mesh so that we cache the vertices
+        // positions to calculate the deltas comparing with the original mesh
+        const auto progressiveMorpherNode = progressiveMorpherInfo.nodes[idx];
+        auto       meshConvertOptions = GetExportArgs().GetMeshConversionOptions();
+        meshConvertOptions.SetPrimvarLayoutInference(
+            MaxUsd::MaxMeshConversionOptions::PrimvarLayoutInference::Never);
+        MaxUsd::MeshConverter meshConverter;
+        UsdGeomMesh           progMorpherMesh = meshConverter.ConvertToUSDMesh(
+            progressiveMorpherNode,
+            stage,
+            primPath.ReplaceName(TfToken(
+                primPath.GetElementString() + pxr::TfMakeValidIdentifier(MaxUsd::GenerateGUID()))),
+            meshConvertOptions,
+            false,
+            false,
+            MaxUsd::ExportTime { startTime, pxr::UsdTimeCode::Default(), true });
+
+        VtVec3fArray targetMeshPoints, targetNormals, deltaPoints, deltaNormals;
+        progMorpherMesh.GetPointsAttr().Get(&targetMeshPoints);
+        _extractNormalsFromPrim(progMorpherMesh, targetNormals);
+
+        stage->RemovePrim(progMorpherMesh.GetPath());
+
+        const size_t numDeltaPoints = sourceMeshPoints.size();
+        deltaPoints.resize(numDeltaPoints);
+        deltaNormals.resize(sourceNormals.size());
+
+        for (size_t i = 0; i < numDeltaPoints; ++i) {
+            deltaPoints[i] = targetMeshPoints[i] - sourceMeshPoints[i];
+        }
+
+        for (size_t i = 0; i < sourceNormals.size(); ++i) {
+            deltaNormals[i] = targetNormals[i] - sourceNormals[i];
+        }
+
+        const float weight = progressiveMorpherInfo.weights[idx];
+        if (weight < 100.f) {
+            std::string nodeName = MaxUsd::MaxStringToUsdString(progressiveMorpherNode->GetName());
+
+            // pxr::TfMakeValidIdentifier doesn't like numbers as the first character and will
+            // replace those numbers with "_". This can completely change the order and weights of
+            // inbetweens in the USD file. To avoid this, add an underscore to the name if the first
+            // character is a number before calling TfMakeValidIdentifier.
+            if (!nodeName.empty() && std::isdigit(nodeName[0])) {
+                nodeName = "_" + nodeName;
+            }
+
+            UsdSkelInbetweenShape ib
+                = blendShape.CreateInbetween(TfToken(TfMakeValidIdentifier(nodeName)));
+            ib.SetOffsets(deltaPoints);
+            ib.SetNormalOffsets(deltaNormals);
+            ib.SetWeight(weight / 100.f);
+        } else {
+            blendShape.GetOffsetsAttr().Set(deltaPoints);
+            blendShape.GetNormalOffsetsAttr().Set(deltaNormals);
+        }
+    }
+}
+
+void MaxUsdSkinMorpherWriter::WriteMorphWeightAnimations(
+    const UsdPrim&            targetPrim,
+    const MaxUsd::ExportTime& time) const
+{
+    const auto& timeVal = time.GetMaxTime();
+    const auto& usdTimeCode = time.GetUsdTime();
+
+    const SdfPath          primPath = targetPrim.GetPath();
+    const auto             stage = targetPrim.GetStage();
+    const SdfPath          skelRootPath = MaxUsd::VerifyOrMakeSkelRoot(stage, primPath);
+    const UsdSkelSkeleton  skel(MaxUsd::VerifyOrMakePrimOfType<UsdSkelSkeleton>(
+        stage, skelRootPath, GetExportArgs().GetBonesPrimName()));
+    const UsdSkelAnimation anim(MaxUsd::VerifyOrMakePrimOfType<UsdSkelAnimation>(
+        stage, skel.GetPath(), GetExportArgs().GetAnimationsPrimName()));
+
+    pxr::VtFloatArray  shapeWeights;
+    const UsdAttribute shapeWeightAttribute = anim.GetBlendShapeWeightsAttr();
+
+    // If time is not default, need to check if the timecode already exists in the
+    // shapeWeightAttribute
+    if (usdTimeCode != UsdTimeCode::Default()) {
+        std::vector<double> weightSamples;
+        shapeWeightAttribute.GetTimeSamples(&weightSamples);
+
+        const bool hasWeightsOnUsdTime
+            = std::find(weightSamples.begin(), weightSamples.end(), usdTimeCode)
+            != weightSamples.end();
+        if (hasWeightsOnUsdTime) {
+            shapeWeightAttribute.Get(&shapeWeights, usdTimeCode);
+        }
+    } else {
+        shapeWeightAttribute.Get(&shapeWeights);
+    }
+
+    auto morpher = morpherProperties.morpher;
+    for (int i = 1; i < morpher->NumSubs(); i++) {
+        // animatable is only valid for valid morpher channels
+        if (IParamBlock* animatablePB = static_cast<IParamBlock*>(morpher->SubAnim(i))) {
+            // remap spinner values from Max weights to Usd equivalent. See MorpherProperties
+            // comments
+            shapeWeights.emplace_back(GetMorpherWeightAtTime(animatablePB, timeVal) / 100.f);
+        }
+    }
+
+    shapeWeightAttribute.Set(shapeWeights, usdTimeCode);
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/SkinMorpherWriter.h b/src/translators/SkinMorpherWriter.h
new file mode 100644
index 0000000..3ce6847
--- /dev/null
+++ b/src/translators/SkinMorpherWriter.h
@@ -0,0 +1,100 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include "MeshWriter.h"
+
+#include <pxr/usd/usdSkel/animation.h>
+#include <pxr/usd/usdSkel/skeleton.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class UsdSkelBlendShape;
+class UsdSkelInbetweenShape;
+
+/*
+ * MorpherProperties is a helper struct to cache morpher data.
+ *
+ * By default, Max's morpher weights are from 0 (minLimit) to 100 (maxLimit), while Usd's
+ * Blendshapes are from 0 to 1. Thus, we need to remap Max values into Usd by dividing Max's values
+ * by delta between the min and maximum weight (deltaLimit). Note: Both Max and Usd allows the
+ * weight to go beyond the max limit (useLimit). Meaning that a weight of 115 in Max can be
+ * translated to 1.15 in usd if the property 'Use Limits' is turned off in the morpher modifier.
+ */
+struct MorpherProperties
+{
+    Modifier* morpher = nullptr;
+    float     minLimit = 0.f;
+    float     maxLimit = 100.f;
+    int       useLimits = 1;
+};
+
+class MaxUsdSkinMorpherWriter : public MaxUsdMeshWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdSkinMorpherWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    bool PostExport(UsdPrim& targetPrim) override;
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Mesh; }
+
+    WStr GetWriterName() override { return L"Skin and Morpher writer"; }
+
+    Interval GetValidityInterval(const TimeValue& time) override;
+
+private:
+    // Auxiliar function that disables all modifiers on top of the skin modifer, then writes the
+    // node mesh
+    pxr::UsdGeomMesh DisabledModsAndWriteMeshData(
+        INode*                    node,
+        UsdStageWeakPtr           stage,
+        const pxr::SdfPath&       primPath,
+        bool                      applyOffsetTransform,
+        const MaxUsd::ExportTime& time,
+        bool                      writeWarning = true);
+
+    static UsdSkelBlendShape CreateBlendShape(
+        const UsdGeomMesh&  sourceMesh,
+        const UsdGeomMesh&  targetMesh,
+        const std::wstring& name);
+    void CreateInBetweens(
+        INode*                   sourceNode,
+        const UsdGeomMesh&       sourceMeshPrim,
+        int                      morpherIndex,
+        const UsdSkelBlendShape& blendShape,
+        TimeValue                startTime);
+
+    // For each export time, it appends the animation prim the weight based on the ParamBlock*
+    void
+    WriteMorphWeightAnimations(const UsdPrim& targetPrim, const MaxUsd::ExportTime& time) const;
+
+    // Auxiliar function get the morpher weight at the given time considering it's limit
+    float GetMorpherWeightAtTime(IParamBlock* pb, const TimeValue& timeValue) const;
+
+    static void GetMorpherNames(INode* node, std::vector<std::wstring>& morpherNames);
+
+    MorpherProperties     morpherProperties;
+    pxr::UsdGeomMesh      skinnedMesh;
+    pxr::UsdSkelSkeleton  skeleton;
+    pxr::UsdSkelAnimation skelAnimation;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/StageWriter.cpp b/src/translators/StageWriter.cpp
new file mode 100644
index 0000000..58f7f51
--- /dev/null
+++ b/src/translators/StageWriter.cpp
@@ -0,0 +1,229 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "StageWriter.h"
+
+#include <MaxUsd/Interfaces/IUSDStageProvider.h>
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/mathUtils.h>
+
+#include <pxr/base/tf/pathUtils.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/usdGeom/camera.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdUtils/pipeline.h>
+
+#include <Shlwapi.h>
+#include <linshape.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdStageWriter::MaxUsdStageWriter(const MaxUsdWriteJobContext& jobCtx, INode* node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdStageWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetUsdStagesAsReferences()) {
+        return ContextSupport::Unsupported;
+    }
+    Class_ID   USDSTAGEOBJECT_CLASS_ID(0x24ce4724, 0x14d2486b);
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    return object->ClassID() == USDSTAGEOBJECT_CLASS_ID ? ContextSupport::Fallback
+                                                        : ContextSupport::Unsupported;
+}
+
+MaxUsd::XformSplitRequirement MaxUsdStageWriter::RequiresXformPrim()
+{
+    const auto object
+        = GetNode()->EvalWorldState(GetExportArgs().GetResolvedTimeConfig().GetStartTime()).obj;
+    auto usdProviderInterface = object->GetInterface(IUSDStageProvider_ID);
+    if (!usdProviderInterface) {
+        return MaxUsd::XformSplitRequirement::ForOffsetObjects;
+    }
+    auto stageProvider = static_cast<MaxUsd::IUSDStageProvider*>(usdProviderInterface);
+    const pxr::UsdStageWeakPtr referencedStage = stageProvider->GetUSDStage();
+    auto stageRootTransform = MaxUsd::GetStageAxisAndUnitRootTransform(referencedStage);
+    return !MaxUsd::MathUtils::IsIdentity(stageRootTransform)
+        ? MaxUsd::XformSplitRequirement::Always
+        : MaxUsd::XformSplitRequirement::ForOffsetObjects;
+}
+
+MaxUsd::MaterialAssignRequirement MaxUsdStageWriter::RequiresMaterialAssignment()
+{
+    return MaxUsd::MaterialAssignRequirement::NoAssignment;
+}
+
+Interval MaxUsdStageWriter::GetValidityInterval(const TimeValue& time) { return FOREVER; }
+
+bool MaxUsdStageWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+    // We need an Xformable Prim for any transform we might need apply before we reference in the
+    // Stage's root layer, to account for different units or up-axis.
+    pxr::UsdGeomXformable xformable { targetPrim };
+
+    // Apply the offset transform if need be.
+
+    // Get the stage from the USDStageObject
+    auto stageProvider = static_cast<MaxUsd::IUSDStageProvider*>(
+        sourceNode->GetObjectRef()->GetInterface(IUSDStageProvider_ID));
+    pxr::UsdStageWeakPtr referencedStage = stageProvider->GetUSDStage();
+
+    if (!referencedStage) {
+        MaxUsd::Log::Warn(
+            L"USD Stage Object {0} has no USD content loaded.", sourceNode->GetName());
+        return true;
+    }
+
+    // By default, a reference targets the root prim of a layer. However, it is possible that no
+    // prim is setup as default, if so, we try to use the first primitive we find.
+    auto       referencedPrim = referencedStage->GetDefaultPrim();
+    const bool hasDefaultPrim = referencedPrim.IsValid();
+    auto rootPrims = referencedStage->GetPrimAtPath(pxr::SdfPath::AbsoluteRootPath()).GetChildren();
+
+    // Raise a warnings if no default prim is defined, we will fallback to the first available prim.
+    if (!hasDefaultPrim) {
+        MaxUsd::Log::Warn(
+            L"No default Prim is defined on the root USD layer of {0}.", sourceNode->GetName());
+
+        if (rootPrims.empty()) {
+            MaxUsd::Log::Warn(
+                L"Found no suitable Prim for referencing at the root layer of {0}. The USD Stage "
+                L"Object "
+                L"will not be exported as a USD reference.",
+                sourceNode->GetName());
+            return true;
+        }
+
+        referencedPrim = rootPrims.front();
+        MaxUsd::Log::Warn(
+            "Using prim {0} as reference target.", referencedPrim.GetName().GetString());
+    }
+
+    // Raise a warning if more than one root primitives, or no default prim defined. Indeed, a
+    // reference will only target one prim.
+    const bool hasMultipleRootChildren
+        = referencedStage->GetPrimAtPath(pxr::SdfPath::AbsoluteRootPath()).GetChildrenNames().size()
+        > 1;
+    if (hasMultipleRootChildren) {
+        MaxUsd::Log::Warn(
+            L"Multiple Prims exist at the root of the USD stage {0}. It is not possible to "
+            L"properly create a "
+            L"reference to this stage's root layer, as only a single Prim can be targeted ({1}).",
+            sourceNode->GetName(),
+            MaxUsd::UsdStringToMaxString(rootPrims.front().GetName().GetString()).data());
+    }
+
+    // Raise a warning if any in-memory changes on the stage. We do not support this yet.
+    auto layers = referencedStage->GetLayerStack(true);
+    for (const auto& layer : layers) {
+        if (layer->IsDirty()) {
+            MaxUsd::Log::Warn(
+                L"The USD stage {0} had dirty layers. In memory changes will not be saved as part "
+                L"of the "
+                L"export of this USD Stage Object as a USD reference.",
+                sourceNode->GetName());
+            break;
+        }
+    }
+
+    auto         pb = sourceNode->GetObjectRef()->GetParamBlock(0);
+    const MCHAR* value = nullptr;
+    Interval     valid;
+    pb->GetValue(0 /*StageFile*/, GetCOREInterface()->GetTime(), value, valid);
+
+    // For future safety, currently this should be caught upstream.
+    if (!value) {
+        MaxUsd::Log::Warn(L"The USD Stage {0} has no root layer defined.", sourceNode->GetName());
+        return true;
+    }
+    // For future safety, currently this should be caught upstream.
+    const std::string referenceFileName = MaxUsd::MaxStringToUsdString(value);
+    if (MaxUsd::HasUnicodeCharacter(referenceFileName)) {
+        MaxUsd::Log::Error(
+            L"The root layer specified for USD Stage {0} contains illegal characters.",
+            sourceNode->GetName());
+        return true;
+    }
+
+    auto stage = targetPrim.GetStage();
+    auto primPath = targetPrim.GetPath();
+    // Create an override, which will hold a reference. Using an override enables us to target any
+    // Prim type.
+    pxr::UsdPrim overPrim = stage->OverridePrim(primPath.AppendChild(referencedPrim.GetName()));
+
+    // Adjust for the referenced layer unit & up-axis setup.
+    auto rootTransform = MaxUsd::GetStageAxisAndUnitRootTransform(referencedStage);
+    xformable
+        .AddXformOp(
+            pxr::UsdGeomXformOp::TypeTransform,
+            pxr::UsdGeomXformOp::PrecisionDouble,
+            pxr::TfToken("axisAndUnitTransform"))
+        .Set(rootTransform);
+
+    auto       exportedFilename = this->GetJobContext().GetFilename();
+    const bool isUsdzFormat = this->GetJobContext().IsUSDZFile();
+
+    std::string referencePath = "";
+    // Usdz should use absolute paths when exporting other usd references. There are scenarios in
+    // which usdzip fails to resolve relative paths. To work around this, just use absolute path.
+    // This doesn't change the end result, as those paths are retargeted to the usdz folder
+    // structure
+    if (isUsdzFormat) {
+        MaxUsd::Log::Info(
+            L"Exporting USDZ file, using an absolute path for the USD reference {0}",
+            sourceNode->GetName());
+        referencePath = referenceFileName;
+    } else {
+        wchar_t relativePath[MAX_PATH] = L"";
+        if (PathRelativePathTo(
+                relativePath,
+                MaxUsd::UsdStringToMaxString(exportedFilename).data(),
+                FILE_ATTRIBUTE_NORMAL,
+                value,
+                FILE_ATTRIBUTE_NORMAL)) {
+            // Normalizing the path will strip the ./ from the relative path - as far as the OS is
+            // concerned, that is fine. However, the PXR ArDefaultResolver, if not seeing a ./ will
+            // also look into any defined search paths, having the ./ prefix will make it understand
+            // that the relative path is anchored to the layer we are exporting. (see
+            // ArDefaultResolver::SetDefaultSearchPath())
+            referencePath = "./" + TfNormPath(MaxUsd::MaxStringToUsdString(relativePath));
+        }
+        // If building the relative path failed, use an absolute path (for example if the paths are
+        // on different drives).
+        else {
+            MaxUsd::Log::Warn(
+                L"Unable to create a relative path for the USD reference exported from {0}, using "
+                L"an absolute path.",
+                sourceNode->GetName());
+            referencePath = TfNormPath(referenceFileName);
+        }
+    }
+
+    overPrim.GetReferences().AddReference(referencePath, referencedPrim.GetPath());
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/StageWriter.h b/src/translators/StageWriter.h
new file mode 100644
index 0000000..ce20e75
--- /dev/null
+++ b/src/translators/StageWriter.h
@@ -0,0 +1,46 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdStageWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdStageWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Layer"); };
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->Xform; };
+
+    WStr GetWriterName() override { return L"USD stage writer"; };
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override;
+
+    MaxUsd::MaterialAssignRequirement RequiresMaterialAssignment() override;
+
+    Interval GetValidityInterval(const TimeValue& time) override;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/SunPositionerWriter.cpp b/src/translators/SunPositionerWriter.cpp
new file mode 100644
index 0000000..5cd541d
--- /dev/null
+++ b/src/translators/SunPositionerWriter.cpp
@@ -0,0 +1,184 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "SunPositionerWriter.h"
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+#include <MaxUsd/Utilities/MaxSupportUtils.h>
+#include <MaxUsd/Utilities/TypeUtils.h>
+
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/tf/token.h>
+#include <pxr/pxr.h>
+#include <pxr/usd/usd/timeCode.h>
+#include <pxr/usd/usdGeom/primvarsAPI.h>
+#include <pxr/usd/usdLux/distantLight.h>
+#include <pxr/usd/usdLux/shadowAPI.h>
+
+#include <DayLightSimulation/IPhysicalSunSky.h>
+#include <DayLightSimulation/ISunPositioner.h>
+#include <linshape.h>
+#include <toneOp.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+MaxUsdSunPositionerWriter::MaxUsdSunPositionerWriter(
+    const MaxUsdWriteJobContext& jobCtx,
+    INode*                       node)
+    : MaxUsdPrimWriter(jobCtx, node)
+{
+}
+
+MaxUsdPrimWriter::ContextSupport
+MaxUsdSunPositionerWriter::CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs)
+{
+    if (!exportArgs.GetTranslateLights()) {
+        return ContextSupport::Unsupported;
+    }
+    const auto object = node->EvalWorldState(exportArgs.GetResolvedTimeConfig().GetStartTime()).obj;
+    if (object->IsSubClassOf(MaxSDK::ISunPositioner::GetClassID())) {
+        return ContextSupport::Fallback;
+    }
+    return ContextSupport::Unsupported;
+}
+
+MaxUsd::XformSplitRequirement MaxUsdSunPositionerWriter::RequiresXformPrim()
+{
+    return MaxUsd::XformSplitRequirement::Always;
+}
+
+Interval MaxUsdSunPositionerWriter::GetValidityInterval(const TimeValue& time)
+{
+    // The object validity on the SunPositioner is not properly reporting on the
+    // validity interval of the node if the sun positioner is set up
+    // not to use a weather file (aka using the 'date, time & location').
+    // We need to manually combine those validity intervals.
+    INode* sourceNode = GetNode();
+
+    // Start from the object validity interval..
+    const auto obj = sourceNode->EvalWorldState(time).obj;
+    auto       validityInterval = obj->ObjectValidity(time);
+
+    Interval      sunSkyEnvVal = FOREVER;
+    Texmap* const envmap = GetCOREInterface()->GetEnvironmentMap();
+    // If the sun positioner object is not using the default shader, this will map to nullptr
+    MaxSDK::IPhysicalSunSky* sunskyenv = dynamic_cast<MaxSDK::IPhysicalSunSky*>(envmap);
+    if (sunskyenv) {
+        sunskyenv->InstantiateShader(time, sunSkyEnvVal);
+    }
+    MaxSDK::ISunPositioner* maxSunPositioner = static_cast<MaxSDK::ISunPositioner*>(obj);
+    maxSunPositioner->GetSunDirection(time, sunSkyEnvVal);
+
+    // Intersect the intervals..
+    validityInterval &= sunSkyEnvVal;
+    return validityInterval;
+}
+
+bool MaxUsdSunPositionerWriter::Write(
+    UsdPrim&                  targetPrim,
+    bool                      applyOffsetTransform,
+    const MaxUsd::ExportTime& time)
+{
+    INode* sourceNode = GetNode();
+
+    const auto& timeVal = time.GetMaxTime();
+    const auto& usdTimeCode = time.GetUsdTime();
+
+    const auto obj = sourceNode->EvalWorldState(timeVal).obj;
+
+    MaxSDK::ISunPositioner* maxSunPositioner = dynamic_cast<MaxSDK::ISunPositioner*>(obj);
+    if (maxSunPositioner == nullptr) {
+        return false;
+    }
+
+    auto stage = targetPrim.GetStage();
+    auto primPath = targetPrim.GetPath();
+
+    // TODO - the SunPositioner would translate better into a pxr:UsdRiPxrEnvDayLight but it does
+    // not work for now It is a render delegate support issue. RenderMan 23 render delegate is not
+    // supporting this for now.
+    // https://graphics.pixar.com/usd/docs/api/class_usd_ri_pxr_env_day_light.html
+    pxr::UsdLuxDistantLight usdDistantLightPrim = pxr::UsdLuxDistantLight::Define(stage, primPath);
+
+    Texmap* const envmap = GetCOREInterface()->GetEnvironmentMap();
+    // if the sun positioner object is not using the default shader, this will map to nullptr
+    MaxSDK::IPhysicalSunSky* sunskyenv = dynamic_cast<MaxSDK::IPhysicalSunSky*>(envmap);
+
+    // On the first frame, translate some non-animatable properties.
+    if (time.IsFirstFrame()) {
+
+        if (sunskyenv) {
+            // replace the default intensity for distant light
+            // important to note, here, the color attribute has an intensity component to it (see
+            // sun shader below) the value for intensity is a multiplier required based on trials
+            // and errors
+            usdDistantLightPrim.CreateIntensityAttr().Set(3.f, pxr::UsdTimeCode::Default());
+        } else {
+            MaxUsd::Log::Warn(
+                L"The SunPositioner '{0}' is not using an environment map derived from "
+                L"MaxSDK::IPhysicalSunSky. "
+                L"The light color and intensity will not properly be exported.",
+                sourceNode->GetName());
+        }
+    }
+
+    pxr::UsdGeomXformable xformable(usdDistantLightPrim.GetPrim());
+
+    // Write animatable properties.
+
+    // properly align distant light along the direction of the sun for the z-axis
+    // direction towards the sun - a unit vector pointing towards the sun, in object space
+    Interval valid = FOREVER;
+    auto     sunDirection = maxSunPositioner->GetSunDirection(timeVal, valid);
+    Point3   x = Point3(0.f, 1.f, 0.f) ^ sunDirection;
+    x.Normalize();
+    Point3 y = sunDirection ^ x;
+    y.Normalize();
+    Matrix3 sunOrientation(x, y, sunDirection, Point3());
+
+    // Only define the xformOp once.
+    if (!usdGeomXFormOp.IsDefined()) {
+        usdGeomXFormOp = xformable.AddXformOp(
+            pxr::UsdGeomXformOp::TypeTransform,
+            pxr::UsdGeomXformOp::PrecisionDouble,
+            pxr::TfToken("sunDirection"));
+    }
+    usdGeomXFormOp.Set(MaxUsd::ToUsd(sunOrientation), usdTimeCode);
+
+    std::unique_ptr<MaxSDK::IPhysicalSunSky::IShader> sunShader;
+    if (sunskyenv) {
+        Interval interval = FOREVER;
+        sunShader = sunskyenv->InstantiateShader(timeVal, interval);
+    }
+
+    // sun color with an intensity component part of its value
+    if (sunShader) {
+        Color                        sunColor = sunShader->Evaluate(sunDirection);
+        ToneOperatorInterface* const toneOpInt
+            = dynamic_cast<ToneOperatorInterface*>(GetCOREInterface(TONE_OPERATOR_INTERFACE));
+        ToneOperator* const toneOp
+            = (toneOpInt != nullptr) ? toneOpInt->GetToneOperator() : nullptr;
+        if (toneOp != nullptr) {
+            toneOp->ScaledToRGB(sunColor);
+        }
+        pxr::GfVec3f usdLightColor { sunColor[0], sunColor[1], sunColor[2] };
+        usdDistantLightPrim.CreateColorAttr().Set(usdLightColor, usdTimeCode);
+    }
+
+    return true;
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE
\ No newline at end of file
diff --git a/src/translators/SunPositionerWriter.h b/src/translators/SunPositionerWriter.h
new file mode 100644
index 0000000..9570694
--- /dev/null
+++ b/src/translators/SunPositionerWriter.h
@@ -0,0 +1,48 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <MaxUsd/Translators/primWriter.h>
+#include <MaxUsd/Translators/writeJobContext.h>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class MaxUsdSunPositionerWriter : public MaxUsdPrimWriter
+{
+public:
+    static ContextSupport CanExport(INode* node, const MaxUsd::USDSceneBuilderOptions& exportArgs);
+
+    MaxUsdSunPositionerWriter(const MaxUsdWriteJobContext& jobCtx, INode* node);
+
+    bool
+    Write(UsdPrim& targetPrim, bool applyOffsetTransform, const MaxUsd::ExportTime& time) override;
+
+    MaxUsd::XformSplitRequirement RequiresXformPrim() override;
+
+    TfToken GetObjectPrimSuffix() override { return TfToken("Light"); };
+
+    TfToken GetPrimType() override { return MaxUsdPrimTypeTokens->DistantLight; };
+
+    WStr GetWriterName() override { return L"Light writer"; };
+
+    Interval GetValidityInterval(const TimeValue& time) override;
+
+private:
+    // Xform op needed to position the sun direction on the z-axis for the distant light.
+    pxr::UsdGeomXformOp usdGeomXFormOp;
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
diff --git a/src/translators/plugInfo.json b/src/translators/plugInfo.json
new file mode 100644
index 0000000..941d70f
--- /dev/null
+++ b/src/translators/plugInfo.json
@@ -0,0 +1,45 @@
+{
+   "Plugins": [
+      {
+         "Info": {
+            "MaxUsd": {
+               "ShaderWriter": {
+                  "providesTranslator": [
+                     "Material Switcher"
+                  ]
+               },
+               "PrimReader": {
+                  "providesTranslator": [
+                     "UsdGeomCamera",
+                     "UsdLuxCylinderLight",
+                     "UsdLuxRectLight",
+                     "UsdLuxSphereLight",
+                     "UsdLuxDiskLight",
+                     "UsdGeomMesh",
+                     "UsdGeomScope",
+                     "UsdSkelSkeleton",
+                     "UsdSkelRoot",
+                     "UsdGeomBasisCurves",
+                     "UsdGeomNurbsCurves"
+                  ]
+               },
+               "PrimWriter": {
+                  # Default Base writers are evaluated in the following order:
+                  # StageWriter - any USDStage class object
+                  # SkeletonWriter - any dependent skin modifier node, or morpher
+                  # SkinMorpherWriter - only support skinning of object that can/should be converted to meshes, exclude shapes
+                  # MeshWriter - any object convertible to TriObject, exclude shapes
+                  # CameraWriter - all Camera class objects
+                  # ShapeWriter - any Shape class objects
+                  # PhotometricLightWriter - any LightScape light class objects
+                  # SunPositionerWriter - any subject objects of SunPositioner class type
+                  # HelperWriter - any PointHelper or Dummy class objects
+               }
+            }
+         },
+         "Name": "MaxUsd_Translators",
+         "Type": "library",
+         "LibraryPath": "MaxUsd_Translators.dll"
+      }
+   ]
+}
\ No newline at end of file
diff --git a/src/usd-component.sln b/src/usd-component.sln
new file mode 100644
index 0000000..ae6855d
--- /dev/null
+++ b/src/usd-component.sln
@@ -0,0 +1,157 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31624.102
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MaxUsdObjects", "MaxUsdObjects\MaxUsdObjects.vcxproj", "{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}"
+	ProjectSection(ProjectDependencies) = postProject
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MaxUsd", "MaxUsd\maxUsd.vcxproj", "{D02163F8-70EE-4676-B3EA-7C89E71B44D4}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "USDExport", "USDExport\USDExport.vcxproj", "{C26B28EC-ADC4-4519-9060-61B85B371D90}"
+	ProjectSection(ProjectDependencies) = postProject
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553} = {1ABE147E-CB5A-485B-8B06-86C19CB5A553}
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "USDImport", "USDImport\USDImport.vcxproj", "{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}"
+	ProjectSection(ProjectDependencies) = postProject
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553} = {1ABE147E-CB5A-485B-8B06-86C19CB5A553}
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{87A6CEC3-99DC-4F1B-8252-956568F2F023}"
+	ProjectSection(SolutionItems) = preProject
+		usd-component.gta.runsettings = usd-component.gta.runsettings
+	EndProjectSection
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{0DB47D99-AF9A-4C44-9C4C-38D202D36FE6}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "USD.Unit.test", "Tests\Unit\USD.Unit.test.vcxproj", "{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "USD.System.tests", "Tests\System\USD.System.test.vcxproj", "{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Python", "python\python.vcxproj", "{1ABE147E-CB5A-485B-8B06-86C19CB5A553}"
+	ProjectSection(ProjectDependencies) = postProject
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1} = {046CF5D0-8DBF-46FB-8D73-11F1861F81F1}
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BasePxrUsdPreviewSurface", "pxrUsdPreviewSurface\basePxrUsdPreviewSurface.vcxproj", "{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}"
+	ProjectSection(ProjectDependencies) = postProject
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UFEUI", "UFEUI\UFEUI.vcxproj", "{0E1A6B42-080B-475C-8F53-613C47A99C81}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UFEUI.Unit.test", "UFEUI\Tests\UFE.Unit.test.vcxproj", "{C073624F-E30A-452F-B250-0599DBFA7099}"
+	ProjectSection(ProjectDependencies) = postProject
+		{0E1A6B42-080B-475C-8F53-613C47A99C81} = {0E1A6B42-080B-475C-8F53-613C47A99C81}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RenderDelegate", "RenderDelegate\RenderDelegate.vcxproj", "{7B707DD2-355B-4232-89E8-F92A821B71B3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MaxUsd_Translators", "translators\MaxUsd_Translators.vcxproj", "{3F78B1EF-5A80-42C4-814B-22FD43912DD7}"
+	ProjectSection(ProjectDependencies) = postProject
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4} = {D02163F8-70EE-4676-B3EA-7C89E71B44D4}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Hybrid|x64 = Hybrid|x64
+		Hybrid|x86 = Hybrid|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Hybrid|x64.Build.0 = Hybrid|x64
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Release|x64.ActiveCfg = Release|x64
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Release|x64.Build.0 = Release|x64
+		{046CF5D0-8DBF-46FB-8D73-11F1861F81F1}.Release|x86.ActiveCfg = Release|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Hybrid|x64.Build.0 = Hybrid|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Release|x64.ActiveCfg = Release|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Release|x64.Build.0 = Release|x64
+		{D02163F8-70EE-4676-B3EA-7C89E71B44D4}.Release|x86.ActiveCfg = Release|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Hybrid|x64.Build.0 = Hybrid|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Release|x64.ActiveCfg = Release|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Release|x64.Build.0 = Release|x64
+		{C26B28EC-ADC4-4519-9060-61B85B371D90}.Release|x86.ActiveCfg = Release|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Hybrid|x64.Build.0 = Hybrid|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Release|x64.ActiveCfg = Release|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Release|x64.Build.0 = Release|x64
+		{C1FCE4D9-6793-4728-B56A-E17634E9BDD4}.Release|x86.ActiveCfg = Release|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Hybrid|x64.Build.0 = Hybrid|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Release|x64.ActiveCfg = Release|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Release|x64.Build.0 = Release|x64
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282}.Release|x86.ActiveCfg = Release|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Hybrid|x64.Build.0 = Hybrid|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Release|x64.ActiveCfg = Release|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Release|x64.Build.0 = Release|x64
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE}.Release|x86.ActiveCfg = Release|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Hybrid|x64.Build.0 = Hybrid|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Release|x64.ActiveCfg = Release|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Release|x64.Build.0 = Release|x64
+		{1ABE147E-CB5A-485B-8B06-86C19CB5A553}.Release|x86.ActiveCfg = Release|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Hybrid|x64.Build.0 = Hybrid|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Release|x64.ActiveCfg = Release|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Release|x64.Build.0 = Release|x64
+		{6E7D0426-554A-4A93-B3D5-8AF3D00B0078}.Release|x86.ActiveCfg = Release|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Hybrid|x64.Build.0 = Hybrid|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Release|x64.ActiveCfg = Release|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Release|x64.Build.0 = Release|x64
+		{0E1A6B42-080B-475C-8F53-613C47A99C81}.Release|x86.ActiveCfg = Release|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Hybrid|x64.Build.0 = Hybrid|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Hybrid|x86.Build.0 = Hybrid|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Release|x64.ActiveCfg = Release|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Release|x64.Build.0 = Release|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Release|x86.ActiveCfg = Release|x64
+		{C073624F-E30A-452F-B250-0599DBFA7099}.Release|x86.Build.0 = Release|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Hybrid|x64.Build.0 = Hybrid|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Hybrid|x86.Build.0 = Hybrid|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Release|x64.ActiveCfg = Release|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Release|x64.Build.0 = Release|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Release|x86.ActiveCfg = Release|x64
+		{7B707DD2-355B-4232-89E8-F92A821B71B3}.Release|x86.Build.0 = Release|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Hybrid|x64.ActiveCfg = Hybrid|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Hybrid|x64.Build.0 = Hybrid|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Hybrid|x86.ActiveCfg = Hybrid|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Release|x64.ActiveCfg = Release|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Release|x64.Build.0 = Release|x64
+		{3F78B1EF-5A80-42C4-814B-22FD43912DD7}.Release|x86.ActiveCfg = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{3BCF1B3E-B79E-441B-81EE-2A72E20D9282} = {0DB47D99-AF9A-4C44-9C4C-38D202D36FE6}
+		{457D8A56-BCD5-41B6-AC35-3EA86CB6FBAE} = {0DB47D99-AF9A-4C44-9C4C-38D202D36FE6}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		Qt5Version = 5.12.5
+		SolutionGuid = {AA4F4C2E-D51B-4137-B558-E0C72FF7E1F5}
+	EndGlobalSection
+EndGlobal
diff --git a/src/usd_banned.h b/src/usd_banned.h
new file mode 100644
index 0000000..a8a3119
--- /dev/null
+++ b/src/usd_banned.h
@@ -0,0 +1,115 @@
+//
+// Copyright 2023 Autodesk
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#pragma once
+
+#include <plugapi.h>
+#if MAX_RELEASE >= 25900
+// C++17 removed std::binary/unary_function
+// we need to update our dependencies to be compatible
+// in the meantime, we will hide the issue using this trick
+namespace std {
+template <class Arg1, class Arg2, class Result>
+struct binary_function
+{
+	using first_argument_type = Arg1;
+	using second_argument_type = Arg2;
+	using result_type = Result;
+};
+} // namespace std
+#endif
+
+// Bunch of headers bringing memcpy calls
+#include <atomic>
+#include <locale>
+#include <boost/functional/hash.hpp>
+#include <boost/container/detail/copy_move_algo.hpp>
+
+// Some macro conflicts
+#include <boost/random.hpp>
+#include <boost/bimap.hpp>
+
+#pragma warning(push)
+#pragma warning(disable : 4244 4305 4267 4003 4305 6011 6319 6386 26451 26439 26478 26487)
+#include <pxr/base/gf/vec2f.h>
+#include <pxr/base/gf/vec2h.h>
+#include <pxr/base/gf/vec2i.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec3h.h>
+#include <pxr/base/gf/vec3i.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/base/gf/vec4h.h>
+#include <pxr/base/gf/vec4i.h>
+#include <pxr/base/gf/quath.h>
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/matrix3f.h>
+#include <pxr/base/gf/range1f.h>
+#include <pxr/base/gf/matrixData.h>
+#include <pxr/base/vt/array.h>
+#include <pxr/usd/pcp/mapfunction.h>
+#include <pxr/base/tf/anyUniquePtr.h>
+#include <pxr/base/tf/refPtr.h>
+#include <pxr/base/tf/smallVector.h>
+#include <pxr/base/tf/diagnosticLite.h>
+#if MAX_RELEASE >= 25900
+#include <pxr/base/tf/pxrTslRobinMap/robin_growth_policy.h>
+#endif
+#include <pxr/imaging/pxOsd/meshTopology.h>
+#include <pxr/usd/pcp/dynamicFileFormatDependencyData.h>
+#include <pxr/base/trace/dataBuffer.h>
+#include <pxr/imaging/hd/camera.h>
+#include <pxr/imaging/hd/tokens.h>
+#include <pxr/usdImaging/usdImaging/resolvedAttributeCache.h>
+#include <pxr/imaging/hdx/taskController.h>
+#include <pxr/imaging/pxosd/tokens.h>
+#include <pxr/usd/sdf/schema.h>
+#include <pxr/usd/sdf/assetPath.h>
+#include <pxr/usd/sdr/shadernode.h>
+#include <pxr/usd/usd/primData.h>
+#include <pxr/usd/usd/notice.h>
+#include <pxr/usd/usdgeom/xformOp.h>
+#include <pxr/usd/usdUtils/stageCache.h>
+#pragma warning(pop)
+
+#pragma warning(push)
+#pragma warning(disable : 26451)
+#include <spdlog/fmt/bundled/core.h>
+#include <spdlog/fmt/bundled/format.h>
+#include <spdlog/fmt/bundled/format-inl.h>
+#pragma warning(pop)
+
+#pragma warning(push)
+#pragma warning(disable : 4828)
+#include <ILightingUnits.h>
+#pragma warning(push)
+
+#pragma warning(push)
+#pragma warning(disable : 26451)
+#include <mesh.h>
+#include <winutil.h>
+#pragma warning(push)
+
+// the 3dsmax_banned.h header file is part of Max RTM 2020 (major version 22)
+// unless present in the SDK include folder, do not include the header
+#if defined(_MSC_VER) && _MSC_VER >= 1910
+#if __has_include("<3dsmax_banned.h>") // need VS2017 to use the method
+#include <3dsmax_banned.h>
+#endif
+#else
+#include <maxversion.h>
+#if MAX_VERSION_MAJOR >= 22
+#include <3dsmax_banned.h>
+#endif
+#endif
\ No newline at end of file